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	diff --git a/ObsoleteFiles.inc b/ObsoleteFiles.inc
	index df713cfd1fb0..1e47821fe696 100644
	--- a/ObsoleteFiles.inc
	+++ b/ObsoleteFiles.inc
	@@ -1,15039 +1,15049 @@
	#
	# $FreeBSD$
	#
	# This file lists old files (OLD_FILES), libraries (OLD_LIBS) and
	# directories (OLD_DIRS) which should get removed at an update. Recently
	# removed entries first (with the date as a comment). Dynamic libraries are
	# special cased (OLD_LIBS). Static libraries or the generic links to
	# the dynamic libraries (lib*.so) should (if you don't know why to make an
	# exception, make this a "must") be viewed as normal files (OLD_FILES).
	#
	# In case of a complete directory hierarchy the sorting is in depth first
	# order.
	#
	# Files that are installed or removed depending on some build option
	# are to be listed in /usr/src/tools/build/mk/OptionalObsoleteFiles.inc
	# instead of in this file.
	#
	# Before you commit changes to this file please check if any entries in
	# tools/build/mk/OptionalObsoleteFiles.inc can be removed. The following
	# command tells which files are listed more than once regardless of some
	# architecture specific conditionals, so you can not blindly trust the
	# output:
	# ( grep '+=' /usr/src/ObsoleteFiles.inc \| sort -u ; \
	# grep '+=' /usr/src/tools/build/mk/OptionalObsoleteFiles.inc \| sort -u) \| \
	# sort \| uniq -d
	#
	# To find regular duplicates not dependent on optional components, you can
	# also use something that will not give you false positives, e.g.:
	# for t in `make -V TARGETS universe`; do
	# __MAKE_CONF=/dev/null make -f Makefile.inc1 TARGET=$t \
	# -V OLD_FILES -V OLD_LIBS -V OLD_DIRS check-old \| \
	# xargs -n1 \| sort \| uniq -d;
	# done
	#
	# For optional components, you can use the following to see if some entries
	# in OptionalObsoleteFiles.inc have been obsoleted by ObsoleteFiles.inc
	# for o in tools/build/options/WITH*; do
	# __MAKE_CONF=/dev/null make -f Makefile.inc1 -D${o##*/} \
	# -V OLD_FILES -V OLD_LIBS -V OLD_DIRS check-old \| \
	# xargs -n1 \| sort \| uniq -d;
	# done

	+# 20210613: Rename OpenZFS manual pages
	+OLD_FILES+=usr/share/man/man5/spl-module-parameters.5.gz
	+OLD_FILES+=usr/share/man/man5/zfs-events.5.gz
	+OLD_FILES+=usr/share/man/man5/zfs-module-parameters.5.gz
	+OLD_FILES+=usr/share/man/man8/zfsconcepts.8
	+OLD_FILES+=usr/share/man/man8/zfsprops.8
	+OLD_FILES+=usr/share/man/man5/zpool-features.5.gz
	+OLD_FILES+=usr/share/man/man8/zpoolconcepts.8
	+OLD_FILES+=usr/share/man/man8/zpoolprops.8
	+
	# 20210611: Remove svn and svnlite
	OLD_FILES+=usr/bin/svn
	OLD_FILES+=usr/bin/svnadmin
	OLD_FILES+=usr/bin/svnbench
	OLD_FILES+=usr/bin/svndumpfilter
	OLD_FILES+=usr/bin/svnfsfs
	OLD_FILES+=usr/bin/svnlite
	OLD_FILES+=usr/bin/svnliteadmin
	OLD_FILES+=usr/bin/svnlitebench
	OLD_FILES+=usr/bin/svnlitedumpfilter
	OLD_FILES+=usr/bin/svnlitefsfs
	OLD_FILES+=usr/bin/svnlitelook
	OLD_FILES+=usr/bin/svnlitemucc
	OLD_FILES+=usr/bin/svnliterdump
	OLD_FILES+=usr/bin/svnliteserve
	OLD_FILES+=usr/bin/svnlitesync
	OLD_FILES+=usr/bin/svnliteversion
	OLD_FILES+=usr/bin/svnlook
	OLD_FILES+=usr/bin/svnmucc
	OLD_FILES+=usr/bin/svnrdump
	OLD_FILES+=usr/bin/svnserve
	OLD_FILES+=usr/bin/svnsync
	OLD_FILES+=usr/bin/svnversion
	OLD_FILES+=usr/share/man/man1/svnlite.1.gz

	# 20210607: remove ancontrol(8) related programs
	OLD_FILES+=usr/sbin/ancontrol
	OLD_FILES+=usr/share/man/man8/ancontrol.8.gz

	# 20210607: remove an(4)
	OLD_FILES+=usr/include/dev/an/if_aironet_ieee.h
	OLD_FILES+=usr/include/dev/an/if_anreg.h
	OLD_FILES+=usr/share/man/man4/an.4.gz

	# 20210426: remove unused libexec/rc.d/addswap
	OLD_FILES+=etc/rc.d/addswap

	# 20210413: Remove pfctlinput2
	OLD_FILES+=usr/share/man/man9/pfctlinput2.9.gz

	# 20210412: Remove kernel asymmetric crypto
	OLD_FILES+=usr/share/man/man9/crypto_asym.9.gz
	OLD_FILES+=usr/share/man/man9/crypto_kdispatch.9.gz
	OLD_FILES+=usr/share/man/man9/crypto_kdone.9.gz
	OLD_FILES+=usr/share/man/man9/crypto_kregister.9.gz
	OLD_FILES+=usr/share/man/man9/CRYPTODEV_KPROCESS.9.gz

	# 20210410: remove unused libexec/rc.d/archdep
	OLD_FILES+=etc/rc.d/archdep

	# 20210408: remove tcp_hostcache.h
	OLD_FILES+=usr/include/netinet/tcp_hostcache.h

	# 20210403: remove kgmon(8)
	OLD_FILES+=usr/sbin/kgmon
	OLD_FILES+=usr/share/man/man8/kgmon.8.gz

	# 20210401: remove bt(4) man page
	OLD_FILES+=usr/share/man/man4/bt.4.gz

	# 20210322: retire mn(4) sync serial driver
	OLD_FILES+=usr/share/man/man4/if_mn.4.gz
	OLD_FILES+=usr/share/man/man4/mn.4.gz

	# 20210318: remove the terminfo database
	OLD_FILES+=usr/share/terminfo/1/1178
	OLD_FILES+=usr/share/terminfo/1/1730-lm
	OLD_DIRS+=usr/share/terminfo/1
	OLD_FILES+=usr/share/terminfo/2/2621
	OLD_FILES+=usr/share/terminfo/2/2621-wl
	OLD_FILES+=usr/share/terminfo/2/2621A
	OLD_FILES+=usr/share/terminfo/2/2621a
	OLD_DIRS+=usr/share/terminfo/2/
	OLD_FILES+=usr/share/terminfo/3/386at
	OLD_FILES+=usr/share/terminfo/3/3b1
	OLD_DIRS+=usr/share/terminfo/3/
	OLD_FILES+=usr/share/terminfo/4/4025ex
	OLD_FILES+=usr/share/terminfo/4/4027ex
	OLD_FILES+=usr/share/terminfo/4/4410-w
	OLD_DIRS+=usr/share/terminfo/4/
	OLD_FILES+=usr/share/terminfo/5/5051
	OLD_FILES+=usr/share/terminfo/5/5410-w
	OLD_FILES+=usr/share/terminfo/5/5620
	OLD_FILES+=usr/share/terminfo/5/5630-24
	OLD_FILES+=usr/share/terminfo/5/5630DMD-24
	OLD_DIRS+=usr/share/terminfo/5/
	OLD_FILES+=usr/share/terminfo/6/6053
	OLD_FILES+=usr/share/terminfo/6/6053-dg
	OLD_FILES+=usr/share/terminfo/6/605x
	OLD_FILES+=usr/share/terminfo/6/605x-dg
	OLD_FILES+=usr/share/terminfo/6/630-lm
	OLD_FILES+=usr/share/terminfo/6/630MTG-24
	OLD_DIRS+=usr/share/terminfo/6/
	OLD_FILES+=usr/share/terminfo/7/730MTG-24
	OLD_FILES+=usr/share/terminfo/7/730MTG-41
	OLD_FILES+=usr/share/terminfo/7/730MTG-41r
	OLD_FILES+=usr/share/terminfo/7/730MTGr
	OLD_FILES+=usr/share/terminfo/7/730MTGr-24
	OLD_DIRS+=usr/share/terminfo/7/
	OLD_FILES+=usr/share/terminfo/8/8510
	OLD_DIRS+=usr/share/terminfo/8/
	OLD_FILES+=usr/share/terminfo/9/955-hb
	OLD_FILES+=usr/share/terminfo/9/955-w
	OLD_FILES+=usr/share/terminfo/9/9term
	OLD_DIRS+=usr/share/terminfo/9/
	OLD_FILES+=usr/share/terminfo/A/Apple_Terminal
	OLD_DIRS+=usr/share/terminfo/A/
	OLD_FILES+=usr/share/terminfo/E/Eterm
	OLD_FILES+=usr/share/terminfo/E/Eterm-256color
	OLD_FILES+=usr/share/terminfo/E/Eterm-88color
	OLD_FILES+=usr/share/terminfo/E/Eterm-color
	OLD_DIRS+=usr/share/terminfo/E/
	OLD_FILES+=usr/share/terminfo/L/LFT-PC850
	OLD_DIRS+=usr/share/terminfo/L/
	OLD_FILES+=usr/share/terminfo/M/MtxOrb
	OLD_FILES+=usr/share/terminfo/M/MtxOrb162
	OLD_FILES+=usr/share/terminfo/M/MtxOrb204
	OLD_DIRS+=usr/share/terminfo/M/
	OLD_FILES+=usr/share/terminfo/N/NCR260VT300WPP
	OLD_FILES+=usr/share/terminfo/N/NCRVT100WPP
	OLD_DIRS+=usr/share/terminfo/N/
	OLD_FILES+=usr/share/terminfo/P/P12
	OLD_FILES+=usr/share/terminfo/P/P12-M
	OLD_FILES+=usr/share/terminfo/P/P12-M-W
	OLD_FILES+=usr/share/terminfo/P/P12-W
	OLD_FILES+=usr/share/terminfo/P/P14
	OLD_FILES+=usr/share/terminfo/P/P14-M
	OLD_FILES+=usr/share/terminfo/P/P14-M-W
	OLD_FILES+=usr/share/terminfo/P/P14-W
	OLD_FILES+=usr/share/terminfo/P/P4
	OLD_FILES+=usr/share/terminfo/P/P5
	OLD_FILES+=usr/share/terminfo/P/P7
	OLD_FILES+=usr/share/terminfo/P/P8
	OLD_FILES+=usr/share/terminfo/P/P8-W
	OLD_FILES+=usr/share/terminfo/P/P9
	OLD_FILES+=usr/share/terminfo/P/P9-8
	OLD_FILES+=usr/share/terminfo/P/P9-8-W
	OLD_FILES+=usr/share/terminfo/P/P9-W
	OLD_DIRS+=usr/share/terminfo/P/
	OLD_FILES+=usr/share/terminfo/Q/Q306-8-pc
	OLD_FILES+=usr/share/terminfo/Q/Q310-vip-H
	OLD_FILES+=usr/share/terminfo/Q/Q310-vip-H-am
	OLD_FILES+=usr/share/terminfo/Q/Q310-vip-Hw
	OLD_FILES+=usr/share/terminfo/Q/Q310-vip-w
	OLD_FILES+=usr/share/terminfo/Q/Q310-vip-w-am
	OLD_DIRS+=usr/share/terminfo/Q/
	OLD_FILES+=usr/share/terminfo/X/X-hpterm
	OLD_DIRS+=usr/share/terminfo/X/
	OLD_FILES+=usr/share/terminfo/a/a210
	OLD_FILES+=usr/share/terminfo/a/a80
	OLD_FILES+=usr/share/terminfo/a/a980
	OLD_FILES+=usr/share/terminfo/a/aa4080
	OLD_FILES+=usr/share/terminfo/a/aaa
	OLD_FILES+=usr/share/terminfo/a/aaa+dec
	OLD_FILES+=usr/share/terminfo/a/aaa+rv
	OLD_FILES+=usr/share/terminfo/a/aaa+unk
	OLD_FILES+=usr/share/terminfo/a/aaa-18
	OLD_FILES+=usr/share/terminfo/a/aaa-18-rv
	OLD_FILES+=usr/share/terminfo/a/aaa-20
	OLD_FILES+=usr/share/terminfo/a/aaa-22
	OLD_FILES+=usr/share/terminfo/a/aaa-24
	OLD_FILES+=usr/share/terminfo/a/aaa-24-rv
	OLD_FILES+=usr/share/terminfo/a/aaa-26
	OLD_FILES+=usr/share/terminfo/a/aaa-28
	OLD_FILES+=usr/share/terminfo/a/aaa-30
	OLD_FILES+=usr/share/terminfo/a/aaa-30-ctxt
	OLD_FILES+=usr/share/terminfo/a/aaa-30-rv
	OLD_FILES+=usr/share/terminfo/a/aaa-30-rv-ctxt
	OLD_FILES+=usr/share/terminfo/a/aaa-30-s
	OLD_FILES+=usr/share/terminfo/a/aaa-30-s-ctxt
	OLD_FILES+=usr/share/terminfo/a/aaa-30-s-rv
	OLD_FILES+=usr/share/terminfo/a/aaa-30-s-rv-ct
	OLD_FILES+=usr/share/terminfo/a/aaa-36
	OLD_FILES+=usr/share/terminfo/a/aaa-36-rv
	OLD_FILES+=usr/share/terminfo/a/aaa-40
	OLD_FILES+=usr/share/terminfo/a/aaa-40-rv
	OLD_FILES+=usr/share/terminfo/a/aaa-48
	OLD_FILES+=usr/share/terminfo/a/aaa-48-rv
	OLD_FILES+=usr/share/terminfo/a/aaa-60
	OLD_FILES+=usr/share/terminfo/a/aaa-60-dec-rv
	OLD_FILES+=usr/share/terminfo/a/aaa-60-rv
	OLD_FILES+=usr/share/terminfo/a/aaa-60-s
	OLD_FILES+=usr/share/terminfo/a/aaa-60-s-rv
	OLD_FILES+=usr/share/terminfo/a/aaa-ctxt
	OLD_FILES+=usr/share/terminfo/a/aaa-db
	OLD_FILES+=usr/share/terminfo/a/aaa-rv
	OLD_FILES+=usr/share/terminfo/a/aaa-rv-ctxt
	OLD_FILES+=usr/share/terminfo/a/aaa-rv-unk
	OLD_FILES+=usr/share/terminfo/a/aaa-s
	OLD_FILES+=usr/share/terminfo/a/aaa-s-ctxt
	OLD_FILES+=usr/share/terminfo/a/aaa-s-rv
	OLD_FILES+=usr/share/terminfo/a/aaa-s-rv-ctxt
	OLD_FILES+=usr/share/terminfo/a/aaa-unk
	OLD_FILES+=usr/share/terminfo/a/aas1901
	OLD_FILES+=usr/share/terminfo/a/abm80
	OLD_FILES+=usr/share/terminfo/a/abm85
	OLD_FILES+=usr/share/terminfo/a/abm85e
	OLD_FILES+=usr/share/terminfo/a/abm85h
	OLD_FILES+=usr/share/terminfo/a/abm85h-old
	OLD_FILES+=usr/share/terminfo/a/absolute
	OLD_FILES+=usr/share/terminfo/a/act4
	OLD_FILES+=usr/share/terminfo/a/act5
	OLD_FILES+=usr/share/terminfo/a/addrinfo
	OLD_FILES+=usr/share/terminfo/a/adds200
	OLD_FILES+=usr/share/terminfo/a/adds980
	OLD_FILES+=usr/share/terminfo/a/addsviewpoint
	OLD_FILES+=usr/share/terminfo/a/addsvp60
	OLD_FILES+=usr/share/terminfo/a/adm+sgr
	OLD_FILES+=usr/share/terminfo/a/adm1
	OLD_FILES+=usr/share/terminfo/a/adm11
	OLD_FILES+=usr/share/terminfo/a/adm1178
	OLD_FILES+=usr/share/terminfo/a/adm12
	OLD_FILES+=usr/share/terminfo/a/adm1a
	OLD_FILES+=usr/share/terminfo/a/adm2
	OLD_FILES+=usr/share/terminfo/a/adm20
	OLD_FILES+=usr/share/terminfo/a/adm21
	OLD_FILES+=usr/share/terminfo/a/adm22
	OLD_FILES+=usr/share/terminfo/a/adm3
	OLD_FILES+=usr/share/terminfo/a/adm31
	OLD_FILES+=usr/share/terminfo/a/adm31-old
	OLD_FILES+=usr/share/terminfo/a/adm36
	OLD_FILES+=usr/share/terminfo/a/adm3a
	OLD_FILES+=usr/share/terminfo/a/adm3a+
	OLD_FILES+=usr/share/terminfo/a/adm42
	OLD_FILES+=usr/share/terminfo/a/adm42-ns
	OLD_FILES+=usr/share/terminfo/a/adm5
	OLD_FILES+=usr/share/terminfo/a/aepro
	OLD_FILES+=usr/share/terminfo/a/aixterm
	OLD_FILES+=usr/share/terminfo/a/aixterm-16color
	OLD_FILES+=usr/share/terminfo/a/aixterm-m
	OLD_FILES+=usr/share/terminfo/a/aixterm-m-old
	OLD_FILES+=usr/share/terminfo/a/aj
	OLD_FILES+=usr/share/terminfo/a/aj510
	OLD_FILES+=usr/share/terminfo/a/aj830
	OLD_FILES+=usr/share/terminfo/a/aj832
	OLD_FILES+=usr/share/terminfo/a/alacritty
	OLD_FILES+=usr/share/terminfo/a/alacritty+common
	OLD_FILES+=usr/share/terminfo/a/alacritty-direct
	OLD_FILES+=usr/share/terminfo/a/alt2
	OLD_FILES+=usr/share/terminfo/a/alt3
	OLD_FILES+=usr/share/terminfo/a/alt4
	OLD_FILES+=usr/share/terminfo/a/alt5
	OLD_FILES+=usr/share/terminfo/a/alt7
	OLD_FILES+=usr/share/terminfo/a/alt7pc
	OLD_FILES+=usr/share/terminfo/a/alto-h19
	OLD_FILES+=usr/share/terminfo/a/alto-heath
	OLD_FILES+=usr/share/terminfo/a/altoh19
	OLD_FILES+=usr/share/terminfo/a/altoheath
	OLD_FILES+=usr/share/terminfo/a/altos-2
	OLD_FILES+=usr/share/terminfo/a/altos-3
	OLD_FILES+=usr/share/terminfo/a/altos-4
	OLD_FILES+=usr/share/terminfo/a/altos-5
	OLD_FILES+=usr/share/terminfo/a/altos2
	OLD_FILES+=usr/share/terminfo/a/altos3
	OLD_FILES+=usr/share/terminfo/a/altos4
	OLD_FILES+=usr/share/terminfo/a/altos5
	OLD_FILES+=usr/share/terminfo/a/altos7
	OLD_FILES+=usr/share/terminfo/a/altos7pc
	OLD_FILES+=usr/share/terminfo/a/ambas
	OLD_FILES+=usr/share/terminfo/a/ambassador
	OLD_FILES+=usr/share/terminfo/a/amiga
	OLD_FILES+=usr/share/terminfo/a/amiga-8bit
	OLD_FILES+=usr/share/terminfo/a/amiga-h
	OLD_FILES+=usr/share/terminfo/a/amiga-vnc
	OLD_FILES+=usr/share/terminfo/a/amp219
	OLD_FILES+=usr/share/terminfo/a/amp219w
	OLD_FILES+=usr/share/terminfo/a/ampex-219
	OLD_FILES+=usr/share/terminfo/a/ampex-219w
	OLD_FILES+=usr/share/terminfo/a/ampex-232
	OLD_FILES+=usr/share/terminfo/a/ampex175
	OLD_FILES+=usr/share/terminfo/a/ampex175-b
	OLD_FILES+=usr/share/terminfo/a/ampex210
	OLD_FILES+=usr/share/terminfo/a/ampex219
	OLD_FILES+=usr/share/terminfo/a/ampex219w
	OLD_FILES+=usr/share/terminfo/a/ampex232
	OLD_FILES+=usr/share/terminfo/a/ampex232w
	OLD_FILES+=usr/share/terminfo/a/ampex80
	OLD_FILES+=usr/share/terminfo/a/annarbor4080
	OLD_FILES+=usr/share/terminfo/a/ansi
	OLD_FILES+=usr/share/terminfo/a/ansi+arrows
	OLD_FILES+=usr/share/terminfo/a/ansi+csr
	OLD_FILES+=usr/share/terminfo/a/ansi+cup
	OLD_FILES+=usr/share/terminfo/a/ansi+enq
	OLD_FILES+=usr/share/terminfo/a/ansi+erase
	OLD_FILES+=usr/share/terminfo/a/ansi+idc
	OLD_FILES+=usr/share/terminfo/a/ansi+idc1
	OLD_FILES+=usr/share/terminfo/a/ansi+idl
	OLD_FILES+=usr/share/terminfo/a/ansi+idl1
	OLD_FILES+=usr/share/terminfo/a/ansi+inittabs
	OLD_FILES+=usr/share/terminfo/a/ansi+local
	OLD_FILES+=usr/share/terminfo/a/ansi+local1
	OLD_FILES+=usr/share/terminfo/a/ansi+pp
	OLD_FILES+=usr/share/terminfo/a/ansi+rca
	OLD_FILES+=usr/share/terminfo/a/ansi+rep
	OLD_FILES+=usr/share/terminfo/a/ansi+sgr
	OLD_FILES+=usr/share/terminfo/a/ansi+sgrbold
	OLD_FILES+=usr/share/terminfo/a/ansi+sgrdim
	OLD_FILES+=usr/share/terminfo/a/ansi+sgrso
	OLD_FILES+=usr/share/terminfo/a/ansi+sgrul
	OLD_FILES+=usr/share/terminfo/a/ansi+tabs
	OLD_FILES+=usr/share/terminfo/a/ansi-color-2-emx
	OLD_FILES+=usr/share/terminfo/a/ansi-color-3-emx
	OLD_FILES+=usr/share/terminfo/a/ansi-emx
	OLD_FILES+=usr/share/terminfo/a/ansi-generic
	OLD_FILES+=usr/share/terminfo/a/ansi-m
	OLD_FILES+=usr/share/terminfo/a/ansi-mini
	OLD_FILES+=usr/share/terminfo/a/ansi-mono
	OLD_FILES+=usr/share/terminfo/a/ansi-mr
	OLD_FILES+=usr/share/terminfo/a/ansi-mtabs
	OLD_FILES+=usr/share/terminfo/a/ansi-nt
	OLD_FILES+=usr/share/terminfo/a/ansi.sys
	OLD_FILES+=usr/share/terminfo/a/ansi.sys-old
	OLD_FILES+=usr/share/terminfo/a/ansi.sysk
	OLD_FILES+=usr/share/terminfo/a/ansi43m
	OLD_FILES+=usr/share/terminfo/a/ansi77
	OLD_FILES+=usr/share/terminfo/a/ansi80x25
	OLD_FILES+=usr/share/terminfo/a/ansi80x25-mono
	OLD_FILES+=usr/share/terminfo/a/ansi80x25-raw
	OLD_FILES+=usr/share/terminfo/a/ansi80x30
	OLD_FILES+=usr/share/terminfo/a/ansi80x30-mono
	OLD_FILES+=usr/share/terminfo/a/ansi80x43
	OLD_FILES+=usr/share/terminfo/a/ansi80x43-mono
	OLD_FILES+=usr/share/terminfo/a/ansi80x50
	OLD_FILES+=usr/share/terminfo/a/ansi80x50-mono
	OLD_FILES+=usr/share/terminfo/a/ansi80x60
	OLD_FILES+=usr/share/terminfo/a/ansi80x60-mono
	OLD_FILES+=usr/share/terminfo/a/ansil
	OLD_FILES+=usr/share/terminfo/a/ansil-mono
	OLD_FILES+=usr/share/terminfo/a/ansis
	OLD_FILES+=usr/share/terminfo/a/ansis-mono
	OLD_FILES+=usr/share/terminfo/a/ansisysk
	OLD_FILES+=usr/share/terminfo/a/ansiterm
	OLD_FILES+=usr/share/terminfo/a/ansiw
	OLD_FILES+=usr/share/terminfo/a/ap-vm80
	OLD_FILES+=usr/share/terminfo/a/apl
	OLD_FILES+=usr/share/terminfo/a/apollo
	OLD_FILES+=usr/share/terminfo/a/apollo_15P
	OLD_FILES+=usr/share/terminfo/a/apollo_19L
	OLD_FILES+=usr/share/terminfo/a/apollo_color
	OLD_FILES+=usr/share/terminfo/a/apple-80
	OLD_FILES+=usr/share/terminfo/a/apple-ae
	OLD_FILES+=usr/share/terminfo/a/apple-soroc
	OLD_FILES+=usr/share/terminfo/a/apple-uterm
	OLD_FILES+=usr/share/terminfo/a/apple-uterm-vb
	OLD_FILES+=usr/share/terminfo/a/apple-videx
	OLD_FILES+=usr/share/terminfo/a/apple-videx2
	OLD_FILES+=usr/share/terminfo/a/apple-videx3
	OLD_FILES+=usr/share/terminfo/a/apple-vm80
	OLD_FILES+=usr/share/terminfo/a/apple2e
	OLD_FILES+=usr/share/terminfo/a/apple2e-p
	OLD_FILES+=usr/share/terminfo/a/apple80p
	OLD_FILES+=usr/share/terminfo/a/appleII
	OLD_FILES+=usr/share/terminfo/a/appleIIc
	OLD_FILES+=usr/share/terminfo/a/appleIIe
	OLD_FILES+=usr/share/terminfo/a/appleIIgs
	OLD_FILES+=usr/share/terminfo/a/arm100
	OLD_FILES+=usr/share/terminfo/a/arm100-am
	OLD_FILES+=usr/share/terminfo/a/arm100-w
	OLD_FILES+=usr/share/terminfo/a/arm100-wam
	OLD_FILES+=usr/share/terminfo/a/at
	OLD_FILES+=usr/share/terminfo/a/at-color
	OLD_FILES+=usr/share/terminfo/a/at-m
	OLD_FILES+=usr/share/terminfo/a/at386
	OLD_FILES+=usr/share/terminfo/a/atari
	OLD_FILES+=usr/share/terminfo/a/atari-color
	OLD_FILES+=usr/share/terminfo/a/atari-m
	OLD_FILES+=usr/share/terminfo/a/atari-old
	OLD_FILES+=usr/share/terminfo/a/atari_st
	OLD_FILES+=usr/share/terminfo/a/atari_st-color
	OLD_FILES+=usr/share/terminfo/a/atarist-m
	OLD_FILES+=usr/share/terminfo/a/aterm
	OLD_FILES+=usr/share/terminfo/a/att2300
	OLD_FILES+=usr/share/terminfo/a/att2350
	OLD_FILES+=usr/share/terminfo/a/att4410
	OLD_FILES+=usr/share/terminfo/a/att4410-w
	OLD_FILES+=usr/share/terminfo/a/att4410v1
	OLD_FILES+=usr/share/terminfo/a/att4410v1-w
	OLD_FILES+=usr/share/terminfo/a/att4415
	OLD_FILES+=usr/share/terminfo/a/att4415+nl
	OLD_FILES+=usr/share/terminfo/a/att4415-nl
	OLD_FILES+=usr/share/terminfo/a/att4415-rv
	OLD_FILES+=usr/share/terminfo/a/att4415-rv-nl
	OLD_FILES+=usr/share/terminfo/a/att4415-w
	OLD_FILES+=usr/share/terminfo/a/att4415-w-nl
	OLD_FILES+=usr/share/terminfo/a/att4415-w-rv
	OLD_FILES+=usr/share/terminfo/a/att4415-w-rv-n
	OLD_FILES+=usr/share/terminfo/a/att4418
	OLD_FILES+=usr/share/terminfo/a/att4418-w
	OLD_FILES+=usr/share/terminfo/a/att4420
	OLD_FILES+=usr/share/terminfo/a/att4424
	OLD_FILES+=usr/share/terminfo/a/att4424-1
	OLD_FILES+=usr/share/terminfo/a/att4424m
	OLD_FILES+=usr/share/terminfo/a/att4425
	OLD_FILES+=usr/share/terminfo/a/att4425-nl
	OLD_FILES+=usr/share/terminfo/a/att4425-w
	OLD_FILES+=usr/share/terminfo/a/att4426
	OLD_FILES+=usr/share/terminfo/a/att500
	OLD_FILES+=usr/share/terminfo/a/att505
	OLD_FILES+=usr/share/terminfo/a/att505-24
	OLD_FILES+=usr/share/terminfo/a/att510a
	OLD_FILES+=usr/share/terminfo/a/att510d
	OLD_FILES+=usr/share/terminfo/a/att513
	OLD_FILES+=usr/share/terminfo/a/att5310
	OLD_FILES+=usr/share/terminfo/a/att5320
	OLD_FILES+=usr/share/terminfo/a/att5410
	OLD_FILES+=usr/share/terminfo/a/att5410-w
	OLD_FILES+=usr/share/terminfo/a/att5410v1
	OLD_FILES+=usr/share/terminfo/a/att5410v1-w
	OLD_FILES+=usr/share/terminfo/a/att5418
	OLD_FILES+=usr/share/terminfo/a/att5418-w
	OLD_FILES+=usr/share/terminfo/a/att5420
	OLD_FILES+=usr/share/terminfo/a/att5420+nl
	OLD_FILES+=usr/share/terminfo/a/att5420-nl
	OLD_FILES+=usr/share/terminfo/a/att5420-rv
	OLD_FILES+=usr/share/terminfo/a/att5420-rv-nl
	OLD_FILES+=usr/share/terminfo/a/att5420-w
	OLD_FILES+=usr/share/terminfo/a/att5420-w-nl
	OLD_FILES+=usr/share/terminfo/a/att5420-w-rv
	OLD_FILES+=usr/share/terminfo/a/att5420-w-rv-n
	OLD_FILES+=usr/share/terminfo/a/att5420_2
	OLD_FILES+=usr/share/terminfo/a/att5420_2-w
	OLD_FILES+=usr/share/terminfo/a/att5425
	OLD_FILES+=usr/share/terminfo/a/att5425-nl
	OLD_FILES+=usr/share/terminfo/a/att5425-w
	OLD_FILES+=usr/share/terminfo/a/att5430
	OLD_FILES+=usr/share/terminfo/a/att5620
	OLD_FILES+=usr/share/terminfo/a/att5620-1
	OLD_FILES+=usr/share/terminfo/a/att5620-24
	OLD_FILES+=usr/share/terminfo/a/att5620-34
	OLD_FILES+=usr/share/terminfo/a/att5620-s
	OLD_FILES+=usr/share/terminfo/a/att605
	OLD_FILES+=usr/share/terminfo/a/att605-pc
	OLD_FILES+=usr/share/terminfo/a/att605-w
	OLD_FILES+=usr/share/terminfo/a/att610
	OLD_FILES+=usr/share/terminfo/a/att610+cvis
	OLD_FILES+=usr/share/terminfo/a/att610+cvis0
	OLD_FILES+=usr/share/terminfo/a/att610-103k
	OLD_FILES+=usr/share/terminfo/a/att610-103k-w
	OLD_FILES+=usr/share/terminfo/a/att610-w
	OLD_FILES+=usr/share/terminfo/a/att615
	OLD_FILES+=usr/share/terminfo/a/att615-103k
	OLD_FILES+=usr/share/terminfo/a/att615-103k-w
	OLD_FILES+=usr/share/terminfo/a/att615-w
	OLD_FILES+=usr/share/terminfo/a/att620
	OLD_FILES+=usr/share/terminfo/a/att620-103k
	OLD_FILES+=usr/share/terminfo/a/att620-103k-w
	OLD_FILES+=usr/share/terminfo/a/att620-w
	OLD_FILES+=usr/share/terminfo/a/att630
	OLD_FILES+=usr/share/terminfo/a/att630-24
	OLD_FILES+=usr/share/terminfo/a/att6386
	OLD_FILES+=usr/share/terminfo/a/att700
	OLD_FILES+=usr/share/terminfo/a/att730
	OLD_FILES+=usr/share/terminfo/a/att730-24
	OLD_FILES+=usr/share/terminfo/a/att730-41
	OLD_FILES+=usr/share/terminfo/a/att7300
	OLD_FILES+=usr/share/terminfo/a/att730r
	OLD_FILES+=usr/share/terminfo/a/att730r-24
	OLD_FILES+=usr/share/terminfo/a/att730r-41
	OLD_FILES+=usr/share/terminfo/a/avatar
	OLD_FILES+=usr/share/terminfo/a/avatar0
	OLD_FILES+=usr/share/terminfo/a/avatar0+
	OLD_FILES+=usr/share/terminfo/a/avatar1
	OLD_FILES+=usr/share/terminfo/a/avt
	OLD_FILES+=usr/share/terminfo/a/avt+s
	OLD_FILES+=usr/share/terminfo/a/avt-ns
	OLD_FILES+=usr/share/terminfo/a/avt-rv
	OLD_FILES+=usr/share/terminfo/a/avt-rv-ns
	OLD_FILES+=usr/share/terminfo/a/avt-rv-s
	OLD_FILES+=usr/share/terminfo/a/avt-s
	OLD_FILES+=usr/share/terminfo/a/avt-w
	OLD_FILES+=usr/share/terminfo/a/avt-w-ns
	OLD_FILES+=usr/share/terminfo/a/avt-w-rv
	OLD_FILES+=usr/share/terminfo/a/avt-w-rv-ns
	OLD_FILES+=usr/share/terminfo/a/avt-w-rv-s
	OLD_FILES+=usr/share/terminfo/a/avt-w-s
	OLD_FILES+=usr/share/terminfo/a/aws
	OLD_FILES+=usr/share/terminfo/a/awsc
	OLD_DIRS+=usr/share/terminfo/a/
	OLD_FILES+=usr/share/terminfo/b/b-128
	OLD_FILES+=usr/share/terminfo/b/bantam
	OLD_FILES+=usr/share/terminfo/b/basic4
	OLD_FILES+=usr/share/terminfo/b/basis
	OLD_FILES+=usr/share/terminfo/b/bct510a
	OLD_FILES+=usr/share/terminfo/b/bct510d
	OLD_FILES+=usr/share/terminfo/b/beacon
	OLD_FILES+=usr/share/terminfo/b/bee
	OLD_FILES+=usr/share/terminfo/b/beehive
	OLD_FILES+=usr/share/terminfo/b/beehive3
	OLD_FILES+=usr/share/terminfo/b/beehive4
	OLD_FILES+=usr/share/terminfo/b/beehiveIIIm
	OLD_FILES+=usr/share/terminfo/b/beterm
	OLD_FILES+=usr/share/terminfo/b/bg1.25
	OLD_FILES+=usr/share/terminfo/b/bg1.25nv
	OLD_FILES+=usr/share/terminfo/b/bg1.25rv
	OLD_FILES+=usr/share/terminfo/b/bg2.0
	OLD_FILES+=usr/share/terminfo/b/bg2.0nv
	OLD_FILES+=usr/share/terminfo/b/bg2.0rv
	OLD_FILES+=usr/share/terminfo/b/bg3.10
	OLD_FILES+=usr/share/terminfo/b/bg3.10nv
	OLD_FILES+=usr/share/terminfo/b/bg3.10rv
	OLD_FILES+=usr/share/terminfo/b/bh3m
	OLD_FILES+=usr/share/terminfo/b/bh4
	OLD_FILES+=usr/share/terminfo/b/bitgraph
	OLD_FILES+=usr/share/terminfo/b/blit
	OLD_FILES+=usr/share/terminfo/b/bobcat
	OLD_FILES+=usr/share/terminfo/b/bq300
	OLD_FILES+=usr/share/terminfo/b/bq300-8
	OLD_FILES+=usr/share/terminfo/b/bq300-8-pc
	OLD_FILES+=usr/share/terminfo/b/bq300-8-pc-rv
	OLD_FILES+=usr/share/terminfo/b/bq300-8-pc-w
	OLD_FILES+=usr/share/terminfo/b/bq300-8-pc-w-rv
	OLD_FILES+=usr/share/terminfo/b/bq300-8rv
	OLD_FILES+=usr/share/terminfo/b/bq300-8w
	OLD_FILES+=usr/share/terminfo/b/bq300-pc
	OLD_FILES+=usr/share/terminfo/b/bq300-pc-rv
	OLD_FILES+=usr/share/terminfo/b/bq300-pc-w
	OLD_FILES+=usr/share/terminfo/b/bq300-pc-w-rv
	OLD_FILES+=usr/share/terminfo/b/bq300-rv
	OLD_FILES+=usr/share/terminfo/b/bq300-w
	OLD_FILES+=usr/share/terminfo/b/bq300-w-8rv
	OLD_FILES+=usr/share/terminfo/b/bq300-w-rv
	OLD_FILES+=usr/share/terminfo/b/bsdos-pc
	OLD_FILES+=usr/share/terminfo/b/bsdos-pc-m
	OLD_FILES+=usr/share/terminfo/b/bsdos-pc-mono
	OLD_FILES+=usr/share/terminfo/b/bsdos-pc-nobold
	OLD_FILES+=usr/share/terminfo/b/bsdos-ppc
	OLD_FILES+=usr/share/terminfo/b/bsdos-sparc
	OLD_FILES+=usr/share/terminfo/b/bterm
	OLD_DIRS+=usr/share/terminfo/b/
	OLD_FILES+=usr/share/terminfo/c/c100
	OLD_FILES+=usr/share/terminfo/c/c100-1p
	OLD_FILES+=usr/share/terminfo/c/c100-4p
	OLD_FILES+=usr/share/terminfo/c/c100-rv
	OLD_FILES+=usr/share/terminfo/c/c100-rv-4p
	OLD_FILES+=usr/share/terminfo/c/c104
	OLD_FILES+=usr/share/terminfo/c/c108
	OLD_FILES+=usr/share/terminfo/c/c108-4p
	OLD_FILES+=usr/share/terminfo/c/c108-8p
	OLD_FILES+=usr/share/terminfo/c/c108-rv
	OLD_FILES+=usr/share/terminfo/c/c108-rv-4p
	OLD_FILES+=usr/share/terminfo/c/c108-rv-8p
	OLD_FILES+=usr/share/terminfo/c/c108-w
	OLD_FILES+=usr/share/terminfo/c/c108-w-8p
	OLD_FILES+=usr/share/terminfo/c/c300
	OLD_FILES+=usr/share/terminfo/c/c301
	OLD_FILES+=usr/share/terminfo/c/c321
	OLD_FILES+=usr/share/terminfo/c/ca22851
	OLD_FILES+=usr/share/terminfo/c/cad68-2
	OLD_FILES+=usr/share/terminfo/c/cad68-3
	OLD_FILES+=usr/share/terminfo/c/cbblit
	OLD_FILES+=usr/share/terminfo/c/cbunix
	OLD_FILES+=usr/share/terminfo/c/cci
	OLD_FILES+=usr/share/terminfo/c/cci1
	OLD_FILES+=usr/share/terminfo/c/cdc456
	OLD_FILES+=usr/share/terminfo/c/cdc721
	OLD_FILES+=usr/share/terminfo/c/cdc721-esc
	OLD_FILES+=usr/share/terminfo/c/cdc721ll
	OLD_FILES+=usr/share/terminfo/c/cdc752
	OLD_FILES+=usr/share/terminfo/c/cdc756
	OLD_FILES+=usr/share/terminfo/c/cg7900
	OLD_FILES+=usr/share/terminfo/c/cgc2
	OLD_FILES+=usr/share/terminfo/c/cgc3
	OLD_FILES+=usr/share/terminfo/c/chromatics
	OLD_FILES+=usr/share/terminfo/c/ci8510
	OLD_FILES+=usr/share/terminfo/c/cit-80
	OLD_FILES+=usr/share/terminfo/c/cit101
	OLD_FILES+=usr/share/terminfo/c/cit101e
	OLD_FILES+=usr/share/terminfo/c/cit101e-132
	OLD_FILES+=usr/share/terminfo/c/cit101e-n
	OLD_FILES+=usr/share/terminfo/c/cit101e-n132
	OLD_FILES+=usr/share/terminfo/c/cit101e-rv
	OLD_FILES+=usr/share/terminfo/c/cit500
	OLD_FILES+=usr/share/terminfo/c/cit80
	OLD_FILES+=usr/share/terminfo/c/citc
	OLD_FILES+=usr/share/terminfo/c/citoh
	OLD_FILES+=usr/share/terminfo/c/citoh-6lpi
	OLD_FILES+=usr/share/terminfo/c/citoh-8lpi
	OLD_FILES+=usr/share/terminfo/c/citoh-comp
	OLD_FILES+=usr/share/terminfo/c/citoh-elite
	OLD_FILES+=usr/share/terminfo/c/citoh-pica
	OLD_FILES+=usr/share/terminfo/c/citoh-prop
	OLD_FILES+=usr/share/terminfo/c/citoh-ps
	OLD_FILES+=usr/share/terminfo/c/coco3
	OLD_FILES+=usr/share/terminfo/c/coherent
	OLD_FILES+=usr/share/terminfo/c/color_xterm
	OLD_FILES+=usr/share/terminfo/c/colorscan
	OLD_FILES+=usr/share/terminfo/c/commodore
	OLD_FILES+=usr/share/terminfo/c/concept
	OLD_FILES+=usr/share/terminfo/c/concept-avt
	OLD_FILES+=usr/share/terminfo/c/concept100
	OLD_FILES+=usr/share/terminfo/c/concept100-rv
	OLD_FILES+=usr/share/terminfo/c/concept108
	OLD_FILES+=usr/share/terminfo/c/concept108-4p
	OLD_FILES+=usr/share/terminfo/c/concept108-8p
	OLD_FILES+=usr/share/terminfo/c/concept108-w-8
	OLD_FILES+=usr/share/terminfo/c/concept108-w8p
	OLD_FILES+=usr/share/terminfo/c/concept108rv4p
	OLD_FILES+=usr/share/terminfo/c/cons25
	OLD_FILES+=usr/share/terminfo/c/cons25-debian
	OLD_FILES+=usr/share/terminfo/c/cons25-iso-m
	OLD_FILES+=usr/share/terminfo/c/cons25-iso8859
	OLD_FILES+=usr/share/terminfo/c/cons25-koi8-r
	OLD_FILES+=usr/share/terminfo/c/cons25-koi8r-m
	OLD_FILES+=usr/share/terminfo/c/cons25-m
	OLD_FILES+=usr/share/terminfo/c/cons25l1
	OLD_FILES+=usr/share/terminfo/c/cons25l1-m
	OLD_FILES+=usr/share/terminfo/c/cons25r
	OLD_FILES+=usr/share/terminfo/c/cons25r-m
	OLD_FILES+=usr/share/terminfo/c/cons25w
	OLD_FILES+=usr/share/terminfo/c/cons30
	OLD_FILES+=usr/share/terminfo/c/cons30-m
	OLD_FILES+=usr/share/terminfo/c/cons43
	OLD_FILES+=usr/share/terminfo/c/cons43-m
	OLD_FILES+=usr/share/terminfo/c/cons50
	OLD_FILES+=usr/share/terminfo/c/cons50-iso-m
	OLD_FILES+=usr/share/terminfo/c/cons50-iso8859
	OLD_FILES+=usr/share/terminfo/c/cons50-koi8r
	OLD_FILES+=usr/share/terminfo/c/cons50-koi8r-m
	OLD_FILES+=usr/share/terminfo/c/cons50-m
	OLD_FILES+=usr/share/terminfo/c/cons50l1
	OLD_FILES+=usr/share/terminfo/c/cons50l1-m
	OLD_FILES+=usr/share/terminfo/c/cons50r
	OLD_FILES+=usr/share/terminfo/c/cons50r-m
	OLD_FILES+=usr/share/terminfo/c/cons60
	OLD_FILES+=usr/share/terminfo/c/cons60-iso
	OLD_FILES+=usr/share/terminfo/c/cons60-iso-m
	OLD_FILES+=usr/share/terminfo/c/cons60-koi8r
	OLD_FILES+=usr/share/terminfo/c/cons60-koi8r-m
	OLD_FILES+=usr/share/terminfo/c/cons60-m
	OLD_FILES+=usr/share/terminfo/c/cons60l1
	OLD_FILES+=usr/share/terminfo/c/cons60l1-m
	OLD_FILES+=usr/share/terminfo/c/cons60r
	OLD_FILES+=usr/share/terminfo/c/cons60r-m
	OLD_FILES+=usr/share/terminfo/c/contel300
	OLD_FILES+=usr/share/terminfo/c/contel301
	OLD_FILES+=usr/share/terminfo/c/contel320
	OLD_FILES+=usr/share/terminfo/c/contel321
	OLD_FILES+=usr/share/terminfo/c/cops
	OLD_FILES+=usr/share/terminfo/c/cops-10
	OLD_FILES+=usr/share/terminfo/c/cops10
	OLD_FILES+=usr/share/terminfo/c/crt
	OLD_FILES+=usr/share/terminfo/c/crt-vt220
	OLD_FILES+=usr/share/terminfo/c/cs10
	OLD_FILES+=usr/share/terminfo/c/cs10-w
	OLD_FILES+=usr/share/terminfo/c/ct82
	OLD_FILES+=usr/share/terminfo/c/ct8500
	OLD_FILES+=usr/share/terminfo/c/ctrm
	OLD_FILES+=usr/share/terminfo/c/cx
	OLD_FILES+=usr/share/terminfo/c/cx100
	OLD_FILES+=usr/share/terminfo/c/cyb110
	OLD_FILES+=usr/share/terminfo/c/cyb83
	OLD_FILES+=usr/share/terminfo/c/cygwin
	OLD_FILES+=usr/share/terminfo/c/cygwinB19
	OLD_FILES+=usr/share/terminfo/c/cygwinDBG
	OLD_DIRS+=usr/share/terminfo/c/
	OLD_FILES+=usr/share/terminfo/d/d132
	OLD_FILES+=usr/share/terminfo/d/d2
	OLD_FILES+=usr/share/terminfo/d/d2-dg
	OLD_FILES+=usr/share/terminfo/d/d200
	OLD_FILES+=usr/share/terminfo/d/d200-dg
	OLD_FILES+=usr/share/terminfo/d/d210
	OLD_FILES+=usr/share/terminfo/d/d210-dg
	OLD_FILES+=usr/share/terminfo/d/d211
	OLD_FILES+=usr/share/terminfo/d/d211-7b
	OLD_FILES+=usr/share/terminfo/d/d211-dg
	OLD_FILES+=usr/share/terminfo/d/d214
	OLD_FILES+=usr/share/terminfo/d/d214-dg
	OLD_FILES+=usr/share/terminfo/d/d215
	OLD_FILES+=usr/share/terminfo/d/d215-7b
	OLD_FILES+=usr/share/terminfo/d/d215-dg
	OLD_FILES+=usr/share/terminfo/d/d216+
	OLD_FILES+=usr/share/terminfo/d/d216+25
	OLD_FILES+=usr/share/terminfo/d/d216+dg
	OLD_FILES+=usr/share/terminfo/d/d216-dg
	OLD_FILES+=usr/share/terminfo/d/d216-unix
	OLD_FILES+=usr/share/terminfo/d/d216-unix-25
	OLD_FILES+=usr/share/terminfo/d/d216e+
	OLD_FILES+=usr/share/terminfo/d/d216e+dg
	OLD_FILES+=usr/share/terminfo/d/d216e-dg
	OLD_FILES+=usr/share/terminfo/d/d216e-unix
	OLD_FILES+=usr/share/terminfo/d/d217-dg
	OLD_FILES+=usr/share/terminfo/d/d217-unix
	OLD_FILES+=usr/share/terminfo/d/d217-unix-25
	OLD_FILES+=usr/share/terminfo/d/d220
	OLD_FILES+=usr/share/terminfo/d/d220-7b
	OLD_FILES+=usr/share/terminfo/d/d220-dg
	OLD_FILES+=usr/share/terminfo/d/d230
	OLD_FILES+=usr/share/terminfo/d/d230-dg
	OLD_FILES+=usr/share/terminfo/d/d230c
	OLD_FILES+=usr/share/terminfo/d/d230c-dg
	OLD_FILES+=usr/share/terminfo/d/d400
	OLD_FILES+=usr/share/terminfo/d/d400-dg
	OLD_FILES+=usr/share/terminfo/d/d410
	OLD_FILES+=usr/share/terminfo/d/d410-7b
	OLD_FILES+=usr/share/terminfo/d/d410-7b-w
	OLD_FILES+=usr/share/terminfo/d/d410-dg
	OLD_FILES+=usr/share/terminfo/d/d410-w
	OLD_FILES+=usr/share/terminfo/d/d411
	OLD_FILES+=usr/share/terminfo/d/d411-7b
	OLD_FILES+=usr/share/terminfo/d/d411-7b-w
	OLD_FILES+=usr/share/terminfo/d/d411-dg
	OLD_FILES+=usr/share/terminfo/d/d411-w
	OLD_FILES+=usr/share/terminfo/d/d412+
	OLD_FILES+=usr/share/terminfo/d/d412+25
	OLD_FILES+=usr/share/terminfo/d/d412+dg
	OLD_FILES+=usr/share/terminfo/d/d412+s
	OLD_FILES+=usr/share/terminfo/d/d412+sr
	OLD_FILES+=usr/share/terminfo/d/d412+w
	OLD_FILES+=usr/share/terminfo/d/d412-dg
	OLD_FILES+=usr/share/terminfo/d/d412-unix
	OLD_FILES+=usr/share/terminfo/d/d412-unix-25
	OLD_FILES+=usr/share/terminfo/d/d412-unix-s
	OLD_FILES+=usr/share/terminfo/d/d412-unix-sr
	OLD_FILES+=usr/share/terminfo/d/d412-unix-w
	OLD_FILES+=usr/share/terminfo/d/d413-dg
	OLD_FILES+=usr/share/terminfo/d/d413-unix
	OLD_FILES+=usr/share/terminfo/d/d413-unix-25
	OLD_FILES+=usr/share/terminfo/d/d413-unix-s
	OLD_FILES+=usr/share/terminfo/d/d413-unix-sr
	OLD_FILES+=usr/share/terminfo/d/d413-unix-w
	OLD_FILES+=usr/share/terminfo/d/d414-unix
	OLD_FILES+=usr/share/terminfo/d/d414-unix-25
	OLD_FILES+=usr/share/terminfo/d/d414-unix-s
	OLD_FILES+=usr/share/terminfo/d/d414-unix-sr
	OLD_FILES+=usr/share/terminfo/d/d414-unix-w
	OLD_FILES+=usr/share/terminfo/d/d430-dg
	OLD_FILES+=usr/share/terminfo/d/d430-dg-ccc
	OLD_FILES+=usr/share/terminfo/d/d430-unix
	OLD_FILES+=usr/share/terminfo/d/d430-unix-25
	OLD_FILES+=usr/share/terminfo/d/d430-unix-25-ccc
	OLD_FILES+=usr/share/terminfo/d/d430-unix-ccc
	OLD_FILES+=usr/share/terminfo/d/d430-unix-s
	OLD_FILES+=usr/share/terminfo/d/d430-unix-s-ccc
	OLD_FILES+=usr/share/terminfo/d/d430-unix-sr
	OLD_FILES+=usr/share/terminfo/d/d430-unix-sr-ccc
	OLD_FILES+=usr/share/terminfo/d/d430-unix-w
	OLD_FILES+=usr/share/terminfo/d/d430-unix-w-ccc
	OLD_FILES+=usr/share/terminfo/d/d430c-dg
	OLD_FILES+=usr/share/terminfo/d/d430c-dg-ccc
	OLD_FILES+=usr/share/terminfo/d/d430c-unix
	OLD_FILES+=usr/share/terminfo/d/d430c-unix-25
	OLD_FILES+=usr/share/terminfo/d/d430c-unix-25-ccc
	OLD_FILES+=usr/share/terminfo/d/d430c-unix-ccc
	OLD_FILES+=usr/share/terminfo/d/d430c-unix-s
	OLD_FILES+=usr/share/terminfo/d/d430c-unix-s-ccc
	OLD_FILES+=usr/share/terminfo/d/d430c-unix-sr
	OLD_FILES+=usr/share/terminfo/d/d430c-unix-sr-ccc
	OLD_FILES+=usr/share/terminfo/d/d430c-unix-w
	OLD_FILES+=usr/share/terminfo/d/d430c-unix-w-ccc
	OLD_FILES+=usr/share/terminfo/d/d450
	OLD_FILES+=usr/share/terminfo/d/d450-dg
	OLD_FILES+=usr/share/terminfo/d/d460
	OLD_FILES+=usr/share/terminfo/d/d460-7b
	OLD_FILES+=usr/share/terminfo/d/d460-7b-w
	OLD_FILES+=usr/share/terminfo/d/d460-dg
	OLD_FILES+=usr/share/terminfo/d/d460-w
	OLD_FILES+=usr/share/terminfo/d/d461
	OLD_FILES+=usr/share/terminfo/d/d461-7b
	OLD_FILES+=usr/share/terminfo/d/d461-7b-w
	OLD_FILES+=usr/share/terminfo/d/d461-dg
	OLD_FILES+=usr/share/terminfo/d/d461-w
	OLD_FILES+=usr/share/terminfo/d/d462+
	OLD_FILES+=usr/share/terminfo/d/d462+25
	OLD_FILES+=usr/share/terminfo/d/d462+dg
	OLD_FILES+=usr/share/terminfo/d/d462+s
	OLD_FILES+=usr/share/terminfo/d/d462+sr
	OLD_FILES+=usr/share/terminfo/d/d462+w
	OLD_FILES+=usr/share/terminfo/d/d462-dg
	OLD_FILES+=usr/share/terminfo/d/d462-unix
	OLD_FILES+=usr/share/terminfo/d/d462-unix-25
	OLD_FILES+=usr/share/terminfo/d/d462-unix-s
	OLD_FILES+=usr/share/terminfo/d/d462-unix-sr
	OLD_FILES+=usr/share/terminfo/d/d462-unix-w
	OLD_FILES+=usr/share/terminfo/d/d462e-dg
	OLD_FILES+=usr/share/terminfo/d/d463-dg
	OLD_FILES+=usr/share/terminfo/d/d463-unix
	OLD_FILES+=usr/share/terminfo/d/d463-unix-25
	OLD_FILES+=usr/share/terminfo/d/d463-unix-s
	OLD_FILES+=usr/share/terminfo/d/d463-unix-sr
	OLD_FILES+=usr/share/terminfo/d/d463-unix-w
	OLD_FILES+=usr/share/terminfo/d/d464-unix
	OLD_FILES+=usr/share/terminfo/d/d464-unix-25
	OLD_FILES+=usr/share/terminfo/d/d464-unix-s
	OLD_FILES+=usr/share/terminfo/d/d464-unix-sr
	OLD_FILES+=usr/share/terminfo/d/d464-unix-w
	OLD_FILES+=usr/share/terminfo/d/d470
	OLD_FILES+=usr/share/terminfo/d/d470-7b
	OLD_FILES+=usr/share/terminfo/d/d470-dg
	OLD_FILES+=usr/share/terminfo/d/d470c
	OLD_FILES+=usr/share/terminfo/d/d470c-7b
	OLD_FILES+=usr/share/terminfo/d/d470c-dg
	OLD_FILES+=usr/share/terminfo/d/d555
	OLD_FILES+=usr/share/terminfo/d/d555-7b
	OLD_FILES+=usr/share/terminfo/d/d555-7b-w
	OLD_FILES+=usr/share/terminfo/d/d555-dg
	OLD_FILES+=usr/share/terminfo/d/d555-w
	OLD_FILES+=usr/share/terminfo/d/d577
	OLD_FILES+=usr/share/terminfo/d/d577-7b
	OLD_FILES+=usr/share/terminfo/d/d577-7b-w
	OLD_FILES+=usr/share/terminfo/d/d577-dg
	OLD_FILES+=usr/share/terminfo/d/d577-w
	OLD_FILES+=usr/share/terminfo/d/d578
	OLD_FILES+=usr/share/terminfo/d/d578-7b
	OLD_FILES+=usr/share/terminfo/d/d578-dg
	OLD_FILES+=usr/share/terminfo/d/d80
	OLD_FILES+=usr/share/terminfo/d/d800
	OLD_FILES+=usr/share/terminfo/d/darwin
	OLD_FILES+=usr/share/terminfo/d/darwin-100x37
	OLD_FILES+=usr/share/terminfo/d/darwin-100x37-m
	OLD_FILES+=usr/share/terminfo/d/darwin-112x37
	OLD_FILES+=usr/share/terminfo/d/darwin-112x37-m
	OLD_FILES+=usr/share/terminfo/d/darwin-128x40
	OLD_FILES+=usr/share/terminfo/d/darwin-128x40-m
	OLD_FILES+=usr/share/terminfo/d/darwin-128x48
	OLD_FILES+=usr/share/terminfo/d/darwin-128x48-m
	OLD_FILES+=usr/share/terminfo/d/darwin-144x48
	OLD_FILES+=usr/share/terminfo/d/darwin-144x48-m
	OLD_FILES+=usr/share/terminfo/d/darwin-160x64
	OLD_FILES+=usr/share/terminfo/d/darwin-160x64-m
	OLD_FILES+=usr/share/terminfo/d/darwin-200x64
	OLD_FILES+=usr/share/terminfo/d/darwin-200x64-m
	OLD_FILES+=usr/share/terminfo/d/darwin-200x75
	OLD_FILES+=usr/share/terminfo/d/darwin-200x75-m
	OLD_FILES+=usr/share/terminfo/d/darwin-256x96
	OLD_FILES+=usr/share/terminfo/d/darwin-256x96-m
	OLD_FILES+=usr/share/terminfo/d/darwin-80x25
	OLD_FILES+=usr/share/terminfo/d/darwin-80x25-m
	OLD_FILES+=usr/share/terminfo/d/darwin-80x30
	OLD_FILES+=usr/share/terminfo/d/darwin-80x30-m
	OLD_FILES+=usr/share/terminfo/d/darwin-90x30
	OLD_FILES+=usr/share/terminfo/d/darwin-90x30-m
	OLD_FILES+=usr/share/terminfo/d/darwin-b
	OLD_FILES+=usr/share/terminfo/d/darwin-f
	OLD_FILES+=usr/share/terminfo/d/darwin-f2
	OLD_FILES+=usr/share/terminfo/d/darwin-m
	OLD_FILES+=usr/share/terminfo/d/darwin-m-b
	OLD_FILES+=usr/share/terminfo/d/darwin-m-f
	OLD_FILES+=usr/share/terminfo/d/darwin-m-f2
	OLD_FILES+=usr/share/terminfo/d/datagraphix
	OLD_FILES+=usr/share/terminfo/d/datamedia2500
	OLD_FILES+=usr/share/terminfo/d/datapoint
	OLD_FILES+=usr/share/terminfo/d/dataspeed40
	OLD_FILES+=usr/share/terminfo/d/dd5000
	OLD_FILES+=usr/share/terminfo/d/ddr
	OLD_FILES+=usr/share/terminfo/d/ddr3180
	OLD_FILES+=usr/share/terminfo/d/dec+pp
	OLD_FILES+=usr/share/terminfo/d/dec+sl
	OLD_FILES+=usr/share/terminfo/d/dec-vt100
	OLD_FILES+=usr/share/terminfo/d/dec-vt220
	OLD_FILES+=usr/share/terminfo/d/dec-vt330
	OLD_FILES+=usr/share/terminfo/d/dec-vt340
	OLD_FILES+=usr/share/terminfo/d/dec-vt400
	OLD_FILES+=usr/share/terminfo/d/decansi
	OLD_FILES+=usr/share/terminfo/d/decpro
	OLD_FILES+=usr/share/terminfo/d/decwriter
	OLD_FILES+=usr/share/terminfo/d/delta
	OLD_FILES+=usr/share/terminfo/d/dg+ccc
	OLD_FILES+=usr/share/terminfo/d/dg+color
	OLD_FILES+=usr/share/terminfo/d/dg+color8
	OLD_FILES+=usr/share/terminfo/d/dg+fixed
	OLD_FILES+=usr/share/terminfo/d/dg-ansi
	OLD_FILES+=usr/share/terminfo/d/dg-generic
	OLD_FILES+=usr/share/terminfo/d/dg100
	OLD_FILES+=usr/share/terminfo/d/dg200
	OLD_FILES+=usr/share/terminfo/d/dg210
	OLD_FILES+=usr/share/terminfo/d/dg211
	OLD_FILES+=usr/share/terminfo/d/dg450
	OLD_FILES+=usr/share/terminfo/d/dg460-ansi
	OLD_FILES+=usr/share/terminfo/d/dg6053
	OLD_FILES+=usr/share/terminfo/d/dg6053-old
	OLD_FILES+=usr/share/terminfo/d/dg605x
	OLD_FILES+=usr/share/terminfo/d/dg6134
	OLD_FILES+=usr/share/terminfo/d/dgkeys+11
	OLD_FILES+=usr/share/terminfo/d/dgkeys+15
	OLD_FILES+=usr/share/terminfo/d/dgkeys+7b
	OLD_FILES+=usr/share/terminfo/d/dgkeys+8b
	OLD_FILES+=usr/share/terminfo/d/dgmode+color
	OLD_FILES+=usr/share/terminfo/d/dgmode+color8
	OLD_FILES+=usr/share/terminfo/d/dgunix+ccc
	OLD_FILES+=usr/share/terminfo/d/dgunix+fixed
	OLD_FILES+=usr/share/terminfo/d/diablo
	OLD_FILES+=usr/share/terminfo/d/diablo-lm
	OLD_FILES+=usr/share/terminfo/d/diablo1620
	OLD_FILES+=usr/share/terminfo/d/diablo1620-m8
	OLD_FILES+=usr/share/terminfo/d/diablo1640
	OLD_FILES+=usr/share/terminfo/d/diablo1640-lm
	OLD_FILES+=usr/share/terminfo/d/diablo1640-m8
	OLD_FILES+=usr/share/terminfo/d/diablo1720
	OLD_FILES+=usr/share/terminfo/d/diablo1730
	OLD_FILES+=usr/share/terminfo/d/diablo1740
	OLD_FILES+=usr/share/terminfo/d/diablo1740-lm
	OLD_FILES+=usr/share/terminfo/d/diablo450
	OLD_FILES+=usr/share/terminfo/d/diablo630
	OLD_FILES+=usr/share/terminfo/d/dialogue
	OLD_FILES+=usr/share/terminfo/d/dialogue80
	OLD_FILES+=usr/share/terminfo/d/digilog
	OLD_FILES+=usr/share/terminfo/d/djgpp
	OLD_FILES+=usr/share/terminfo/d/djgpp203
	OLD_FILES+=usr/share/terminfo/d/djgpp204
	OLD_FILES+=usr/share/terminfo/d/dku7003
	OLD_FILES+=usr/share/terminfo/d/dku7003-dumb
	OLD_FILES+=usr/share/terminfo/d/dku7102
	OLD_FILES+=usr/share/terminfo/d/dku7102-old
	OLD_FILES+=usr/share/terminfo/d/dku7102-sna
	OLD_FILES+=usr/share/terminfo/d/dku7103-sna
	OLD_FILES+=usr/share/terminfo/d/dku7202
	OLD_FILES+=usr/share/terminfo/d/dm1520
	OLD_FILES+=usr/share/terminfo/d/dm1521
	OLD_FILES+=usr/share/terminfo/d/dm2500
	OLD_FILES+=usr/share/terminfo/d/dm3025
	OLD_FILES+=usr/share/terminfo/d/dm3045
	OLD_FILES+=usr/share/terminfo/d/dm80
	OLD_FILES+=usr/share/terminfo/d/dm80w
	OLD_FILES+=usr/share/terminfo/d/dmchat
	OLD_FILES+=usr/share/terminfo/d/dmd
	OLD_FILES+=usr/share/terminfo/d/dmd-24
	OLD_FILES+=usr/share/terminfo/d/dmd-34
	OLD_FILES+=usr/share/terminfo/d/dmd1
	OLD_FILES+=usr/share/terminfo/d/dmdt80
	OLD_FILES+=usr/share/terminfo/d/dmdt80w
	OLD_FILES+=usr/share/terminfo/d/dmterm
	OLD_FILES+=usr/share/terminfo/d/domterm
	OLD_FILES+=usr/share/terminfo/d/dp3360
	OLD_FILES+=usr/share/terminfo/d/dp8242
	OLD_FILES+=usr/share/terminfo/d/ds40
	OLD_FILES+=usr/share/terminfo/d/ds40-2
	OLD_FILES+=usr/share/terminfo/d/dt-100
	OLD_FILES+=usr/share/terminfo/d/dt-100w
	OLD_FILES+=usr/share/terminfo/d/dt100
	OLD_FILES+=usr/share/terminfo/d/dt100w
	OLD_FILES+=usr/share/terminfo/d/dt110
	OLD_FILES+=usr/share/terminfo/d/dt80
	OLD_FILES+=usr/share/terminfo/d/dt80-sas
	OLD_FILES+=usr/share/terminfo/d/dt80w
	OLD_FILES+=usr/share/terminfo/d/dtc300s
	OLD_FILES+=usr/share/terminfo/d/dtc382
	OLD_FILES+=usr/share/terminfo/d/dtterm
	OLD_FILES+=usr/share/terminfo/d/dumb
	OLD_FILES+=usr/share/terminfo/d/dumb-emacs-ansi
	OLD_FILES+=usr/share/terminfo/d/dvtm
	OLD_FILES+=usr/share/terminfo/d/dvtm-256color
	OLD_FILES+=usr/share/terminfo/d/dw
	OLD_FILES+=usr/share/terminfo/d/dw1
	OLD_FILES+=usr/share/terminfo/d/dw2
	OLD_FILES+=usr/share/terminfo/d/dw3
	OLD_FILES+=usr/share/terminfo/d/dw4
	OLD_FILES+=usr/share/terminfo/d/dwk
	OLD_FILES+=usr/share/terminfo/d/dwk-vt
	OLD_DIRS+=usr/share/terminfo/d/
	OLD_FILES+=usr/share/terminfo/e/ecma+color
	OLD_FILES+=usr/share/terminfo/e/ecma+index
	OLD_FILES+=usr/share/terminfo/e/ecma+italics
	OLD_FILES+=usr/share/terminfo/e/ecma+sgr
	OLD_FILES+=usr/share/terminfo/e/ecma+strikeout
	OLD_FILES+=usr/share/terminfo/e/elks
	OLD_FILES+=usr/share/terminfo/e/elks-ansi
	OLD_FILES+=usr/share/terminfo/e/elks-glasstty
	OLD_FILES+=usr/share/terminfo/e/elks-vt52
	OLD_FILES+=usr/share/terminfo/e/emots
	OLD_FILES+=usr/share/terminfo/e/emu
	OLD_FILES+=usr/share/terminfo/e/emu-220
	OLD_FILES+=usr/share/terminfo/e/emx-base
	OLD_FILES+=usr/share/terminfo/e/env230
	OLD_FILES+=usr/share/terminfo/e/envision230
	OLD_FILES+=usr/share/terminfo/e/ep40
	OLD_FILES+=usr/share/terminfo/e/ep4000
	OLD_FILES+=usr/share/terminfo/e/ep4080
	OLD_FILES+=usr/share/terminfo/e/ep48
	OLD_FILES+=usr/share/terminfo/e/ergo4000
	OLD_FILES+=usr/share/terminfo/e/esprit
	OLD_FILES+=usr/share/terminfo/e/esprit-am
	OLD_FILES+=usr/share/terminfo/e/eterm
	OLD_FILES+=usr/share/terminfo/e/eterm-color
	OLD_FILES+=usr/share/terminfo/e/ex155
	OLD_FILES+=usr/share/terminfo/e/excel62
	OLD_FILES+=usr/share/terminfo/e/excel62-rv
	OLD_FILES+=usr/share/terminfo/e/excel62-w
	OLD_FILES+=usr/share/terminfo/e/excel64
	OLD_FILES+=usr/share/terminfo/e/excel64-rv
	OLD_FILES+=usr/share/terminfo/e/excel64-w
	OLD_FILES+=usr/share/terminfo/e/exec80
	OLD_DIRS+=usr/share/terminfo/e/
	OLD_FILES+=usr/share/terminfo/f/f100
	OLD_FILES+=usr/share/terminfo/f/f100-rv
	OLD_FILES+=usr/share/terminfo/f/f110
	OLD_FILES+=usr/share/terminfo/f/f110-14
	OLD_FILES+=usr/share/terminfo/f/f110-14w
	OLD_FILES+=usr/share/terminfo/f/f110-w
	OLD_FILES+=usr/share/terminfo/f/f1720
	OLD_FILES+=usr/share/terminfo/f/f1720a
	OLD_FILES+=usr/share/terminfo/f/f200
	OLD_FILES+=usr/share/terminfo/f/f200-w
	OLD_FILES+=usr/share/terminfo/f/f200vi
	OLD_FILES+=usr/share/terminfo/f/f200vi-w
	OLD_FILES+=usr/share/terminfo/f/falco
	OLD_FILES+=usr/share/terminfo/f/falco-p
	OLD_FILES+=usr/share/terminfo/f/fbterm
	OLD_FILES+=usr/share/terminfo/f/fenix
	OLD_FILES+=usr/share/terminfo/f/fenixw
	OLD_FILES+=usr/share/terminfo/f/fixterm
	OLD_FILES+=usr/share/terminfo/f/fortune
	OLD_FILES+=usr/share/terminfo/f/fos
	OLD_FILES+=usr/share/terminfo/f/fox
	OLD_FILES+=usr/share/terminfo/f/freedom
	OLD_FILES+=usr/share/terminfo/f/freedom-rv
	OLD_FILES+=usr/share/terminfo/f/freedom100
	OLD_FILES+=usr/share/terminfo/f/freedom110
	OLD_FILES+=usr/share/terminfo/f/freedom200
	OLD_DIRS+=usr/share/terminfo/f/
	OLD_FILES+=usr/share/terminfo/g/gator
	OLD_FILES+=usr/share/terminfo/g/gator-52
	OLD_FILES+=usr/share/terminfo/g/gator-52t
	OLD_FILES+=usr/share/terminfo/g/gator-t
	OLD_FILES+=usr/share/terminfo/g/gigi
	OLD_FILES+=usr/share/terminfo/g/glasstty
	OLD_FILES+=usr/share/terminfo/g/gnome
	OLD_FILES+=usr/share/terminfo/g/gnome+pcfkeys
	OLD_FILES+=usr/share/terminfo/g/gnome-2007
	OLD_FILES+=usr/share/terminfo/g/gnome-2008
	OLD_FILES+=usr/share/terminfo/g/gnome-2012
	OLD_FILES+=usr/share/terminfo/g/gnome-256color
	OLD_FILES+=usr/share/terminfo/g/gnome-fc5
	OLD_FILES+=usr/share/terminfo/g/gnome-rh62
	OLD_FILES+=usr/share/terminfo/g/gnome-rh72
	OLD_FILES+=usr/share/terminfo/g/gnome-rh80
	OLD_FILES+=usr/share/terminfo/g/gnome-rh90
	OLD_FILES+=usr/share/terminfo/g/go-225
	OLD_FILES+=usr/share/terminfo/g/go140
	OLD_FILES+=usr/share/terminfo/g/go140w
	OLD_FILES+=usr/share/terminfo/g/go225
	OLD_FILES+=usr/share/terminfo/g/graphos
	OLD_FILES+=usr/share/terminfo/g/graphos-30
	OLD_FILES+=usr/share/terminfo/g/gs5430
	OLD_FILES+=usr/share/terminfo/g/gs5430-22
	OLD_FILES+=usr/share/terminfo/g/gs5430-24
	OLD_FILES+=usr/share/terminfo/g/gs6300
	OLD_FILES+=usr/share/terminfo/g/gsi
	OLD_FILES+=usr/share/terminfo/g/gt100
	OLD_FILES+=usr/share/terminfo/g/gt100a
	OLD_FILES+=usr/share/terminfo/g/gt40
	OLD_FILES+=usr/share/terminfo/g/gt42
	OLD_FILES+=usr/share/terminfo/g/guru
	OLD_FILES+=usr/share/terminfo/g/guru+rv
	OLD_FILES+=usr/share/terminfo/g/guru+s
	OLD_FILES+=usr/share/terminfo/g/guru+unk
	OLD_FILES+=usr/share/terminfo/g/guru-24
	OLD_FILES+=usr/share/terminfo/g/guru-33
	OLD_FILES+=usr/share/terminfo/g/guru-33-rv
	OLD_FILES+=usr/share/terminfo/g/guru-33-s
	OLD_FILES+=usr/share/terminfo/g/guru-44
	OLD_FILES+=usr/share/terminfo/g/guru-44-s
	OLD_FILES+=usr/share/terminfo/g/guru-76
	OLD_FILES+=usr/share/terminfo/g/guru-76-lp
	OLD_FILES+=usr/share/terminfo/g/guru-76-s
	OLD_FILES+=usr/share/terminfo/g/guru-76-w
	OLD_FILES+=usr/share/terminfo/g/guru-76-w-s
	OLD_FILES+=usr/share/terminfo/g/guru-76-wm
	OLD_FILES+=usr/share/terminfo/g/guru-lp
	OLD_FILES+=usr/share/terminfo/g/guru-nctxt
	OLD_FILES+=usr/share/terminfo/g/guru-rv
	OLD_FILES+=usr/share/terminfo/g/guru-s
	OLD_DIRS+=usr/share/terminfo/g/
	OLD_FILES+=usr/share/terminfo/h/h-100
	OLD_FILES+=usr/share/terminfo/h/h-100bw
	OLD_FILES+=usr/share/terminfo/h/h100
	OLD_FILES+=usr/share/terminfo/h/h100bw
	OLD_FILES+=usr/share/terminfo/h/h19
	OLD_FILES+=usr/share/terminfo/h/h19-a
	OLD_FILES+=usr/share/terminfo/h/h19-b
	OLD_FILES+=usr/share/terminfo/h/h19-bs
	OLD_FILES+=usr/share/terminfo/h/h19-g
	OLD_FILES+=usr/share/terminfo/h/h19-smul
	OLD_FILES+=usr/share/terminfo/h/h19-u
	OLD_FILES+=usr/share/terminfo/h/h19-us
	OLD_FILES+=usr/share/terminfo/h/h19a
	OLD_FILES+=usr/share/terminfo/h/h19g
	OLD_FILES+=usr/share/terminfo/h/h19k
	OLD_FILES+=usr/share/terminfo/h/h19kermit
	OLD_FILES+=usr/share/terminfo/h/h19us
	OLD_FILES+=usr/share/terminfo/h/h29a-kc-bc
	OLD_FILES+=usr/share/terminfo/h/h29a-kc-uc
	OLD_FILES+=usr/share/terminfo/h/h29a-nkc-bc
	OLD_FILES+=usr/share/terminfo/h/h29a-nkc-uc
	OLD_FILES+=usr/share/terminfo/h/h80
	OLD_FILES+=usr/share/terminfo/h/ha8675
	OLD_FILES+=usr/share/terminfo/h/ha8686
	OLD_FILES+=usr/share/terminfo/h/hazel
	OLD_FILES+=usr/share/terminfo/h/hds200
	OLD_FILES+=usr/share/terminfo/h/he80
	OLD_FILES+=usr/share/terminfo/h/heath
	OLD_FILES+=usr/share/terminfo/h/heath-19
	OLD_FILES+=usr/share/terminfo/h/heath-ansi
	OLD_FILES+=usr/share/terminfo/h/heathkit
	OLD_FILES+=usr/share/terminfo/h/heathkit-a
	OLD_FILES+=usr/share/terminfo/h/hft
	OLD_FILES+=usr/share/terminfo/h/hft-c
	OLD_FILES+=usr/share/terminfo/h/hft-c-old
	OLD_FILES+=usr/share/terminfo/h/hft-old
	OLD_FILES+=usr/share/terminfo/h/hirez100
	OLD_FILES+=usr/share/terminfo/h/hirez100-w
	OLD_FILES+=usr/share/terminfo/h/hmod1
	OLD_FILES+=usr/share/terminfo/h/hp
	OLD_FILES+=usr/share/terminfo/h/hp+arrows
	OLD_FILES+=usr/share/terminfo/h/hp+color
	OLD_FILES+=usr/share/terminfo/h/hp+labels
	OLD_FILES+=usr/share/terminfo/h/hp+pfk+arrows
	OLD_FILES+=usr/share/terminfo/h/hp+pfk+cr
	OLD_FILES+=usr/share/terminfo/h/hp+pfk-cr
	OLD_FILES+=usr/share/terminfo/h/hp+printer
	OLD_FILES+=usr/share/terminfo/h/hp110
	OLD_FILES+=usr/share/terminfo/h/hp150
	OLD_FILES+=usr/share/terminfo/h/hp2
	OLD_FILES+=usr/share/terminfo/h/hp236
	OLD_FILES+=usr/share/terminfo/h/hp2382
	OLD_FILES+=usr/share/terminfo/h/hp2382a
	OLD_FILES+=usr/share/terminfo/h/hp2392
	OLD_FILES+=usr/share/terminfo/h/hp2397
	OLD_FILES+=usr/share/terminfo/h/hp2397a
	OLD_FILES+=usr/share/terminfo/h/hp2621
	OLD_FILES+=usr/share/terminfo/h/hp2621-48
	OLD_FILES+=usr/share/terminfo/h/hp2621-a
	OLD_FILES+=usr/share/terminfo/h/hp2621-ba
	OLD_FILES+=usr/share/terminfo/h/hp2621-fl
	OLD_FILES+=usr/share/terminfo/h/hp2621-k45
	OLD_FILES+=usr/share/terminfo/h/hp2621-nl
	OLD_FILES+=usr/share/terminfo/h/hp2621-nt
	OLD_FILES+=usr/share/terminfo/h/hp2621-wl
	OLD_FILES+=usr/share/terminfo/h/hp2621A
	OLD_FILES+=usr/share/terminfo/h/hp2621a
	OLD_FILES+=usr/share/terminfo/h/hp2621a-a
	OLD_FILES+=usr/share/terminfo/h/hp2621b
	OLD_FILES+=usr/share/terminfo/h/hp2621b-kx
	OLD_FILES+=usr/share/terminfo/h/hp2621b-kx-p
	OLD_FILES+=usr/share/terminfo/h/hp2621b-p
	OLD_FILES+=usr/share/terminfo/h/hp2621k45
	OLD_FILES+=usr/share/terminfo/h/hp2621p
	OLD_FILES+=usr/share/terminfo/h/hp2621p-a
	OLD_FILES+=usr/share/terminfo/h/hp2622
	OLD_FILES+=usr/share/terminfo/h/hp2622a
	OLD_FILES+=usr/share/terminfo/h/hp2623
	OLD_FILES+=usr/share/terminfo/h/hp2623a
	OLD_FILES+=usr/share/terminfo/h/hp2624
	OLD_FILES+=usr/share/terminfo/h/hp2624-10p
	OLD_FILES+=usr/share/terminfo/h/hp2624a
	OLD_FILES+=usr/share/terminfo/h/hp2624a-10p
	OLD_FILES+=usr/share/terminfo/h/hp2624b
	OLD_FILES+=usr/share/terminfo/h/hp2624b-10p
	OLD_FILES+=usr/share/terminfo/h/hp2624b-10p-p
	OLD_FILES+=usr/share/terminfo/h/hp2624b-4p
	OLD_FILES+=usr/share/terminfo/h/hp2624b-4p-p
	OLD_FILES+=usr/share/terminfo/h/hp2624b-p
	OLD_FILES+=usr/share/terminfo/h/hp2626
	OLD_FILES+=usr/share/terminfo/h/hp2626-12
	OLD_FILES+=usr/share/terminfo/h/hp2626-12-s
	OLD_FILES+=usr/share/terminfo/h/hp2626-12x40
	OLD_FILES+=usr/share/terminfo/h/hp2626-ns
	OLD_FILES+=usr/share/terminfo/h/hp2626-s
	OLD_FILES+=usr/share/terminfo/h/hp2626-x40
	OLD_FILES+=usr/share/terminfo/h/hp2626a
	OLD_FILES+=usr/share/terminfo/h/hp2626p
	OLD_FILES+=usr/share/terminfo/h/hp2627a
	OLD_FILES+=usr/share/terminfo/h/hp2627a-rev
	OLD_FILES+=usr/share/terminfo/h/hp2627c
	OLD_FILES+=usr/share/terminfo/h/hp262x
	OLD_FILES+=usr/share/terminfo/h/hp2640a
	OLD_FILES+=usr/share/terminfo/h/hp2640b
	OLD_FILES+=usr/share/terminfo/h/hp2641a
	OLD_FILES+=usr/share/terminfo/h/hp2644a
	OLD_FILES+=usr/share/terminfo/h/hp2645
	OLD_FILES+=usr/share/terminfo/h/hp2645a
	OLD_FILES+=usr/share/terminfo/h/hp2647a
	OLD_FILES+=usr/share/terminfo/h/hp2648
	OLD_FILES+=usr/share/terminfo/h/hp2648a
	OLD_FILES+=usr/share/terminfo/h/hp300h
	OLD_FILES+=usr/share/terminfo/h/hp45
	OLD_FILES+=usr/share/terminfo/h/hp700
	OLD_FILES+=usr/share/terminfo/h/hp700-wy
	OLD_FILES+=usr/share/terminfo/h/hp70092
	OLD_FILES+=usr/share/terminfo/h/hp70092A
	OLD_FILES+=usr/share/terminfo/h/hp70092a
	OLD_FILES+=usr/share/terminfo/h/hp9837
	OLD_FILES+=usr/share/terminfo/h/hp9845
	OLD_FILES+=usr/share/terminfo/h/hp98550
	OLD_FILES+=usr/share/terminfo/h/hp98550a
	OLD_FILES+=usr/share/terminfo/h/hp98720
	OLD_FILES+=usr/share/terminfo/h/hp98721
	OLD_FILES+=usr/share/terminfo/h/hpansi
	OLD_FILES+=usr/share/terminfo/h/hpex
	OLD_FILES+=usr/share/terminfo/h/hpex2
	OLD_FILES+=usr/share/terminfo/h/hpgeneric
	OLD_FILES+=usr/share/terminfo/h/hpsub
	OLD_FILES+=usr/share/terminfo/h/hpterm
	OLD_FILES+=usr/share/terminfo/h/hpterm-color
	OLD_FILES+=usr/share/terminfo/h/htx11
	OLD_FILES+=usr/share/terminfo/h/hurd
	OLD_FILES+=usr/share/terminfo/h/hz1000
	OLD_FILES+=usr/share/terminfo/h/hz1420
	OLD_FILES+=usr/share/terminfo/h/hz1500
	OLD_FILES+=usr/share/terminfo/h/hz1510
	OLD_FILES+=usr/share/terminfo/h/hz1520
	OLD_FILES+=usr/share/terminfo/h/hz1520-noesc
	OLD_FILES+=usr/share/terminfo/h/hz1552
	OLD_FILES+=usr/share/terminfo/h/hz1552-rv
	OLD_FILES+=usr/share/terminfo/h/hz2000
	OLD_DIRS+=usr/share/terminfo/h/
	OLD_FILES+=usr/share/terminfo/i/i100
	OLD_FILES+=usr/share/terminfo/i/i3101
	OLD_FILES+=usr/share/terminfo/i/i3164
	OLD_FILES+=usr/share/terminfo/i/i400
	OLD_FILES+=usr/share/terminfo/i/iTerm.app
	OLD_FILES+=usr/share/terminfo/i/iTerm2.app
	OLD_FILES+=usr/share/terminfo/i/ibcs2
	OLD_FILES+=usr/share/terminfo/i/ibm+16color
	OLD_FILES+=usr/share/terminfo/i/ibm+color
	OLD_FILES+=usr/share/terminfo/i/ibm-apl
	OLD_FILES+=usr/share/terminfo/i/ibm-pc
	OLD_FILES+=usr/share/terminfo/i/ibm-system1
	OLD_FILES+=usr/share/terminfo/i/ibm3101
	OLD_FILES+=usr/share/terminfo/i/ibm3151
	OLD_FILES+=usr/share/terminfo/i/ibm3161
	OLD_FILES+=usr/share/terminfo/i/ibm3161-C
	OLD_FILES+=usr/share/terminfo/i/ibm3162
	OLD_FILES+=usr/share/terminfo/i/ibm3163
	OLD_FILES+=usr/share/terminfo/i/ibm3164
	OLD_FILES+=usr/share/terminfo/i/ibm327x
	OLD_FILES+=usr/share/terminfo/i/ibm5051
	OLD_FILES+=usr/share/terminfo/i/ibm5081
	OLD_FILES+=usr/share/terminfo/i/ibm5081-c
	OLD_FILES+=usr/share/terminfo/i/ibm5151
	OLD_FILES+=usr/share/terminfo/i/ibm5154
	OLD_FILES+=usr/share/terminfo/i/ibm5154-c
	OLD_FILES+=usr/share/terminfo/i/ibm6153
	OLD_FILES+=usr/share/terminfo/i/ibm6153-40
	OLD_FILES+=usr/share/terminfo/i/ibm6153-90
	OLD_FILES+=usr/share/terminfo/i/ibm6154
	OLD_FILES+=usr/share/terminfo/i/ibm6154-c
	OLD_FILES+=usr/share/terminfo/i/ibm6155
	OLD_FILES+=usr/share/terminfo/i/ibm8503
	OLD_FILES+=usr/share/terminfo/i/ibm8507
	OLD_FILES+=usr/share/terminfo/i/ibm8512
	OLD_FILES+=usr/share/terminfo/i/ibm8513
	OLD_FILES+=usr/share/terminfo/i/ibm8514
	OLD_FILES+=usr/share/terminfo/i/ibm8514-c
	OLD_FILES+=usr/share/terminfo/i/ibm8604
	OLD_FILES+=usr/share/terminfo/i/ibmaed
	OLD_FILES+=usr/share/terminfo/i/ibmapa16
	OLD_FILES+=usr/share/terminfo/i/ibmapa8
	OLD_FILES+=usr/share/terminfo/i/ibmapa8c
	OLD_FILES+=usr/share/terminfo/i/ibmapa8c-c
	OLD_FILES+=usr/share/terminfo/i/ibmega
	OLD_FILES+=usr/share/terminfo/i/ibmega-c
	OLD_FILES+=usr/share/terminfo/i/ibmmono
	OLD_FILES+=usr/share/terminfo/i/ibmmpel-c
	OLD_FILES+=usr/share/terminfo/i/ibmpc
	OLD_FILES+=usr/share/terminfo/i/ibmpc3
	OLD_FILES+=usr/share/terminfo/i/ibmpc3r
	OLD_FILES+=usr/share/terminfo/i/ibmpc3r-mono
	OLD_FILES+=usr/share/terminfo/i/ibmpcx
	OLD_FILES+=usr/share/terminfo/i/ibmvga
	OLD_FILES+=usr/share/terminfo/i/ibmvga-c
	OLD_FILES+=usr/share/terminfo/i/ibmx
	OLD_FILES+=usr/share/terminfo/i/icl6402
	OLD_FILES+=usr/share/terminfo/i/icl6404
	OLD_FILES+=usr/share/terminfo/i/icl6404-w
	OLD_FILES+=usr/share/terminfo/i/ifmr
	OLD_FILES+=usr/share/terminfo/i/ims-ansi
	OLD_FILES+=usr/share/terminfo/i/ims950
	OLD_FILES+=usr/share/terminfo/i/ims950-b
	OLD_FILES+=usr/share/terminfo/i/ims950-rv
	OLD_FILES+=usr/share/terminfo/i/infoton
	OLD_FILES+=usr/share/terminfo/i/interix
	OLD_FILES+=usr/share/terminfo/i/interix-nti
	OLD_FILES+=usr/share/terminfo/i/intertec
	OLD_FILES+=usr/share/terminfo/i/intertube
	OLD_FILES+=usr/share/terminfo/i/intertube2
	OLD_FILES+=usr/share/terminfo/i/intext
	OLD_FILES+=usr/share/terminfo/i/intext2
	OLD_FILES+=usr/share/terminfo/i/intextii
	OLD_FILES+=usr/share/terminfo/i/ips
	OLD_FILES+=usr/share/terminfo/i/ipsi
	OLD_FILES+=usr/share/terminfo/i/iq120
	OLD_FILES+=usr/share/terminfo/i/iq140
	OLD_FILES+=usr/share/terminfo/i/iris-ansi
	OLD_FILES+=usr/share/terminfo/i/iris-ansi-ap
	OLD_FILES+=usr/share/terminfo/i/iris-ansi-net
	OLD_FILES+=usr/share/terminfo/i/iris-color
	OLD_FILES+=usr/share/terminfo/i/iris40
	OLD_FILES+=usr/share/terminfo/i/iterm
	OLD_FILES+=usr/share/terminfo/i/iterm2
	OLD_FILES+=usr/share/terminfo/i/iterm2-direct
	OLD_DIRS+=usr/share/terminfo/i/
	OLD_FILES+=usr/share/terminfo/j/jaixterm
	OLD_FILES+=usr/share/terminfo/j/jaixterm-m
	OLD_FILES+=usr/share/terminfo/j/jerq
	OLD_FILES+=usr/share/terminfo/j/jfbterm
	OLD_DIRS+=usr/share/terminfo/j/
	OLD_FILES+=usr/share/terminfo/k/k45
	OLD_FILES+=usr/share/terminfo/k/kaypro
	OLD_FILES+=usr/share/terminfo/k/kaypro2
	OLD_FILES+=usr/share/terminfo/k/kds6402
	OLD_FILES+=usr/share/terminfo/k/kds7372
	OLD_FILES+=usr/share/terminfo/k/kds7372-w
	OLD_FILES+=usr/share/terminfo/k/kermit
	OLD_FILES+=usr/share/terminfo/k/kermit-am
	OLD_FILES+=usr/share/terminfo/k/kitty
	OLD_FILES+=usr/share/terminfo/k/kitty+common
	OLD_FILES+=usr/share/terminfo/k/kitty-direct
	OLD_FILES+=usr/share/terminfo/k/klone+acs
	OLD_FILES+=usr/share/terminfo/k/klone+color
	OLD_FILES+=usr/share/terminfo/k/klone+koi8acs
	OLD_FILES+=usr/share/terminfo/k/klone+sgr
	OLD_FILES+=usr/share/terminfo/k/klone+sgr-dumb
	OLD_FILES+=usr/share/terminfo/k/klone+sgr8
	OLD_FILES+=usr/share/terminfo/k/kon
	OLD_FILES+=usr/share/terminfo/k/kon2
	OLD_FILES+=usr/share/terminfo/k/konsole
	OLD_FILES+=usr/share/terminfo/k/konsole+pcfkeys
	OLD_FILES+=usr/share/terminfo/k/konsole-16color
	OLD_FILES+=usr/share/terminfo/k/konsole-256color
	OLD_FILES+=usr/share/terminfo/k/konsole-base
	OLD_FILES+=usr/share/terminfo/k/konsole-direct
	OLD_FILES+=usr/share/terminfo/k/konsole-linux
	OLD_FILES+=usr/share/terminfo/k/konsole-solaris
	OLD_FILES+=usr/share/terminfo/k/konsole-vt100
	OLD_FILES+=usr/share/terminfo/k/konsole-vt420pc
	OLD_FILES+=usr/share/terminfo/k/konsole-xf3x
	OLD_FILES+=usr/share/terminfo/k/konsole-xf4x
	OLD_FILES+=usr/share/terminfo/k/kt7
	OLD_FILES+=usr/share/terminfo/k/kt7ix
	OLD_FILES+=usr/share/terminfo/k/kterm
	OLD_FILES+=usr/share/terminfo/k/kterm-co
	OLD_FILES+=usr/share/terminfo/k/kterm-color
	OLD_FILES+=usr/share/terminfo/k/ktm
	OLD_FILES+=usr/share/terminfo/k/kvt
	OLD_DIRS+=usr/share/terminfo/k/
	OLD_FILES+=usr/share/terminfo/l/la120
	OLD_FILES+=usr/share/terminfo/l/layer
	OLD_FILES+=usr/share/terminfo/l/lft
	OLD_FILES+=usr/share/terminfo/l/lft-pc850
	OLD_FILES+=usr/share/terminfo/l/linux
	OLD_FILES+=usr/share/terminfo/l/linux+decid
	OLD_FILES+=usr/share/terminfo/l/linux+sfkeys
	OLD_FILES+=usr/share/terminfo/l/linux-16color
	OLD_FILES+=usr/share/terminfo/l/linux-basic
	OLD_FILES+=usr/share/terminfo/l/linux-c
	OLD_FILES+=usr/share/terminfo/l/linux-c-nc
	OLD_FILES+=usr/share/terminfo/l/linux-koi8
	OLD_FILES+=usr/share/terminfo/l/linux-koi8r
	OLD_FILES+=usr/share/terminfo/l/linux-lat
	OLD_FILES+=usr/share/terminfo/l/linux-m
	OLD_FILES+=usr/share/terminfo/l/linux-m1
	OLD_FILES+=usr/share/terminfo/l/linux-m1b
	OLD_FILES+=usr/share/terminfo/l/linux-m2
	OLD_FILES+=usr/share/terminfo/l/linux-nic
	OLD_FILES+=usr/share/terminfo/l/linux-s
	OLD_FILES+=usr/share/terminfo/l/linux-vt
	OLD_FILES+=usr/share/terminfo/l/linux2.2
	OLD_FILES+=usr/share/terminfo/l/linux2.6
	OLD_FILES+=usr/share/terminfo/l/linux2.6.26
	OLD_FILES+=usr/share/terminfo/l/linux3.0
	OLD_FILES+=usr/share/terminfo/l/lisa
	OLD_FILES+=usr/share/terminfo/l/lisaterm
	OLD_FILES+=usr/share/terminfo/l/lisaterm-w
	OLD_FILES+=usr/share/terminfo/l/liswb
	OLD_FILES+=usr/share/terminfo/l/ln03
	OLD_FILES+=usr/share/terminfo/l/ln03-w
	OLD_FILES+=usr/share/terminfo/l/lpr
	OLD_FILES+=usr/share/terminfo/l/luna
	OLD_FILES+=usr/share/terminfo/l/luna68k
	OLD_DIRS+=usr/share/terminfo/l/
	OLD_FILES+=usr/share/terminfo/m/m2-nam
	OLD_FILES+=usr/share/terminfo/m/mac
	OLD_FILES+=usr/share/terminfo/m/mac-w
	OLD_FILES+=usr/share/terminfo/m/mach
	OLD_FILES+=usr/share/terminfo/m/mach-bold
	OLD_FILES+=usr/share/terminfo/m/mach-color
	OLD_FILES+=usr/share/terminfo/m/mach-gnu
	OLD_FILES+=usr/share/terminfo/m/mach-gnu-color
	OLD_FILES+=usr/share/terminfo/m/macintosh
	OLD_FILES+=usr/share/terminfo/m/macterminal-w
	OLD_FILES+=usr/share/terminfo/m/mai
	OLD_FILES+=usr/share/terminfo/m/masscomp
	OLD_FILES+=usr/share/terminfo/m/masscomp1
	OLD_FILES+=usr/share/terminfo/m/masscomp2
	OLD_FILES+=usr/share/terminfo/m/mdl110
	OLD_FILES+=usr/share/terminfo/m/megatek
	OLD_FILES+=usr/share/terminfo/m/memhp
	OLD_FILES+=usr/share/terminfo/m/mgr
	OLD_FILES+=usr/share/terminfo/m/mgr-linux
	OLD_FILES+=usr/share/terminfo/m/mgr-sun
	OLD_FILES+=usr/share/terminfo/m/mgt
	OLD_FILES+=usr/share/terminfo/m/mgterm
	OLD_FILES+=usr/share/terminfo/m/microb
	OLD_FILES+=usr/share/terminfo/m/microbee
	OLD_FILES+=usr/share/terminfo/m/microterm
	OLD_FILES+=usr/share/terminfo/m/microterm5
	OLD_FILES+=usr/share/terminfo/m/mime
	OLD_FILES+=usr/share/terminfo/m/mime-3ax
	OLD_FILES+=usr/share/terminfo/m/mime-fb
	OLD_FILES+=usr/share/terminfo/m/mime-hb
	OLD_FILES+=usr/share/terminfo/m/mime1
	OLD_FILES+=usr/share/terminfo/m/mime2
	OLD_FILES+=usr/share/terminfo/m/mime2a
	OLD_FILES+=usr/share/terminfo/m/mime2a-s
	OLD_FILES+=usr/share/terminfo/m/mime2a-v
	OLD_FILES+=usr/share/terminfo/m/mime314
	OLD_FILES+=usr/share/terminfo/m/mime340
	OLD_FILES+=usr/share/terminfo/m/mime3a
	OLD_FILES+=usr/share/terminfo/m/mime3ax
	OLD_FILES+=usr/share/terminfo/m/mimei
	OLD_FILES+=usr/share/terminfo/m/mimeii
	OLD_FILES+=usr/share/terminfo/m/minitel
	OLD_FILES+=usr/share/terminfo/m/minitel-2
	OLD_FILES+=usr/share/terminfo/m/minitel-2-nam
	OLD_FILES+=usr/share/terminfo/m/minitel1
	OLD_FILES+=usr/share/terminfo/m/minitel1-nb
	OLD_FILES+=usr/share/terminfo/m/minitel12-80
	OLD_FILES+=usr/share/terminfo/m/minitel1b
	OLD_FILES+=usr/share/terminfo/m/minitel1b-80
	OLD_FILES+=usr/share/terminfo/m/minitel1b-nb
	OLD_FILES+=usr/share/terminfo/m/minitel2-80
	OLD_FILES+=usr/share/terminfo/m/minix
	OLD_FILES+=usr/share/terminfo/m/minix-1.5
	OLD_FILES+=usr/share/terminfo/m/minix-1.7
	OLD_FILES+=usr/share/terminfo/m/minix-3.0
	OLD_FILES+=usr/share/terminfo/m/minix-old
	OLD_FILES+=usr/share/terminfo/m/minix-old-am
	OLD_FILES+=usr/share/terminfo/m/mintty
	OLD_FILES+=usr/share/terminfo/m/mintty+common
	OLD_FILES+=usr/share/terminfo/m/mintty-direct
	OLD_FILES+=usr/share/terminfo/m/mlterm
	OLD_FILES+=usr/share/terminfo/m/mlterm+pcfkeys
	OLD_FILES+=usr/share/terminfo/m/mlterm-256color
	OLD_FILES+=usr/share/terminfo/m/mlterm-direct
	OLD_FILES+=usr/share/terminfo/m/mlterm2
	OLD_FILES+=usr/share/terminfo/m/mlterm3
	OLD_FILES+=usr/share/terminfo/m/mm314
	OLD_FILES+=usr/share/terminfo/m/mm340
	OLD_FILES+=usr/share/terminfo/m/mod
	OLD_FILES+=usr/share/terminfo/m/mod24
	OLD_FILES+=usr/share/terminfo/m/modgraph
	OLD_FILES+=usr/share/terminfo/m/modgraph2
	OLD_FILES+=usr/share/terminfo/m/modgraph48
	OLD_FILES+=usr/share/terminfo/m/mono-emx
	OLD_FILES+=usr/share/terminfo/m/morphos
	OLD_FILES+=usr/share/terminfo/m/mouse-sun
	OLD_FILES+=usr/share/terminfo/m/mrxvt
	OLD_FILES+=usr/share/terminfo/m/mrxvt-256color
	OLD_FILES+=usr/share/terminfo/m/ms-terminal
	OLD_FILES+=usr/share/terminfo/m/ms-vt-utf8
	OLD_FILES+=usr/share/terminfo/m/ms-vt100
	OLD_FILES+=usr/share/terminfo/m/ms-vt100+
	OLD_FILES+=usr/share/terminfo/m/ms-vt100-color
	OLD_FILES+=usr/share/terminfo/m/msk227
	OLD_FILES+=usr/share/terminfo/m/msk22714
	OLD_FILES+=usr/share/terminfo/m/msk227am
	OLD_FILES+=usr/share/terminfo/m/mskermit227
	OLD_FILES+=usr/share/terminfo/m/mskermit22714
	OLD_FILES+=usr/share/terminfo/m/mskermit227am
	OLD_FILES+=usr/share/terminfo/m/mt-70
	OLD_FILES+=usr/share/terminfo/m/mt4520-rv
	OLD_FILES+=usr/share/terminfo/m/mt70
	OLD_FILES+=usr/share/terminfo/m/mterm
	OLD_FILES+=usr/share/terminfo/m/mterm-ansi
	OLD_FILES+=usr/share/terminfo/m/mvterm
	OLD_DIRS+=usr/share/terminfo/m/
	OLD_FILES+=usr/share/terminfo/n/n7900
	OLD_FILES+=usr/share/terminfo/n/nansi.sys
	OLD_FILES+=usr/share/terminfo/n/nansi.sysk
	OLD_FILES+=usr/share/terminfo/n/nansisys
	OLD_FILES+=usr/share/terminfo/n/nansisysk
	OLD_FILES+=usr/share/terminfo/n/ncr160vppp
	OLD_FILES+=usr/share/terminfo/n/ncr160vpwpp
	OLD_FILES+=usr/share/terminfo/n/ncr160vt100an
	OLD_FILES+=usr/share/terminfo/n/ncr160vt100pp
	OLD_FILES+=usr/share/terminfo/n/ncr160vt100wan
	OLD_FILES+=usr/share/terminfo/n/ncr160vt100wpp
	OLD_FILES+=usr/share/terminfo/n/ncr160vt200an
	OLD_FILES+=usr/share/terminfo/n/ncr160vt200pp
	OLD_FILES+=usr/share/terminfo/n/ncr160vt200wan
	OLD_FILES+=usr/share/terminfo/n/ncr160vt200wpp
	OLD_FILES+=usr/share/terminfo/n/ncr160vt300an
	OLD_FILES+=usr/share/terminfo/n/ncr160vt300pp
	OLD_FILES+=usr/share/terminfo/n/ncr160vt300wan
	OLD_FILES+=usr/share/terminfo/n/ncr160vt300wpp
	OLD_FILES+=usr/share/terminfo/n/ncr160wy50+pp
	OLD_FILES+=usr/share/terminfo/n/ncr160wy50+wpp
	OLD_FILES+=usr/share/terminfo/n/ncr160wy60pp
	OLD_FILES+=usr/share/terminfo/n/ncr160wy60wpp
	OLD_FILES+=usr/share/terminfo/n/ncr260intan
	OLD_FILES+=usr/share/terminfo/n/ncr260intpp
	OLD_FILES+=usr/share/terminfo/n/ncr260intwan
	OLD_FILES+=usr/share/terminfo/n/ncr260intwpp
	OLD_FILES+=usr/share/terminfo/n/ncr260vppp
	OLD_FILES+=usr/share/terminfo/n/ncr260vpwpp
	OLD_FILES+=usr/share/terminfo/n/ncr260vt100an
	OLD_FILES+=usr/share/terminfo/n/ncr260vt100pp
	OLD_FILES+=usr/share/terminfo/n/ncr260vt100wan
	OLD_FILES+=usr/share/terminfo/n/ncr260vt100wpp
	OLD_FILES+=usr/share/terminfo/n/ncr260vt200an
	OLD_FILES+=usr/share/terminfo/n/ncr260vt200pp
	OLD_FILES+=usr/share/terminfo/n/ncr260vt200wan
	OLD_FILES+=usr/share/terminfo/n/ncr260vt200wpp
	OLD_FILES+=usr/share/terminfo/n/ncr260vt300an
	OLD_FILES+=usr/share/terminfo/n/ncr260vt300pp
	OLD_FILES+=usr/share/terminfo/n/ncr260vt300wan
	OLD_FILES+=usr/share/terminfo/n/ncr260vt300wpp
	OLD_FILES+=usr/share/terminfo/n/ncr260wy325pp
	OLD_FILES+=usr/share/terminfo/n/ncr260wy325wpp
	OLD_FILES+=usr/share/terminfo/n/ncr260wy350pp
	OLD_FILES+=usr/share/terminfo/n/ncr260wy350wpp
	OLD_FILES+=usr/share/terminfo/n/ncr260wy50+pp
	OLD_FILES+=usr/share/terminfo/n/ncr260wy50+wpp
	OLD_FILES+=usr/share/terminfo/n/ncr260wy60pp
	OLD_FILES+=usr/share/terminfo/n/ncr260wy60wpp
	OLD_FILES+=usr/share/terminfo/n/ncr7900
	OLD_FILES+=usr/share/terminfo/n/ncr7900i
	OLD_FILES+=usr/share/terminfo/n/ncr7900iv
	OLD_FILES+=usr/share/terminfo/n/ncr7901
	OLD_FILES+=usr/share/terminfo/n/ncrvt100an
	OLD_FILES+=usr/share/terminfo/n/ncrvt100pp
	OLD_FILES+=usr/share/terminfo/n/ncrvt100wan
	OLD_FILES+=usr/share/terminfo/n/ncrvt100wpp
	OLD_FILES+=usr/share/terminfo/n/ncsa
	OLD_FILES+=usr/share/terminfo/n/ncsa-m
	OLD_FILES+=usr/share/terminfo/n/ncsa-m-ns
	OLD_FILES+=usr/share/terminfo/n/ncsa-ns
	OLD_FILES+=usr/share/terminfo/n/ncsa-vt220
	OLD_FILES+=usr/share/terminfo/n/ncsa-vt220-8
	OLD_FILES+=usr/share/terminfo/n/nd9500
	OLD_FILES+=usr/share/terminfo/n/ndr9500
	OLD_FILES+=usr/share/terminfo/n/ndr9500-25
	OLD_FILES+=usr/share/terminfo/n/ndr9500-25-mc
	OLD_FILES+=usr/share/terminfo/n/ndr9500-25-mc-nl
	OLD_FILES+=usr/share/terminfo/n/ndr9500-25-nl
	OLD_FILES+=usr/share/terminfo/n/ndr9500-mc
	OLD_FILES+=usr/share/terminfo/n/ndr9500-mc-nl
	OLD_FILES+=usr/share/terminfo/n/ndr9500-nl
	OLD_FILES+=usr/share/terminfo/n/nec
	OLD_FILES+=usr/share/terminfo/n/nec5520
	OLD_FILES+=usr/share/terminfo/n/netbsd6
	OLD_FILES+=usr/share/terminfo/n/newhp
	OLD_FILES+=usr/share/terminfo/n/newhpkeyboard
	OLD_FILES+=usr/share/terminfo/n/news
	OLD_FILES+=usr/share/terminfo/n/news-29
	OLD_FILES+=usr/share/terminfo/n/news-29-euc
	OLD_FILES+=usr/share/terminfo/n/news-29-sjis
	OLD_FILES+=usr/share/terminfo/n/news-33
	OLD_FILES+=usr/share/terminfo/n/news-33-euc
	OLD_FILES+=usr/share/terminfo/n/news-33-sjis
	OLD_FILES+=usr/share/terminfo/n/news-42
	OLD_FILES+=usr/share/terminfo/n/news-42-euc
	OLD_FILES+=usr/share/terminfo/n/news-42-sjis
	OLD_FILES+=usr/share/terminfo/n/news-a
	OLD_FILES+=usr/share/terminfo/n/news-o
	OLD_FILES+=usr/share/terminfo/n/news-old-unk
	OLD_FILES+=usr/share/terminfo/n/news-unk
	OLD_FILES+=usr/share/terminfo/n/news28
	OLD_FILES+=usr/share/terminfo/n/news28-a
	OLD_FILES+=usr/share/terminfo/n/news29
	OLD_FILES+=usr/share/terminfo/n/news31
	OLD_FILES+=usr/share/terminfo/n/news31-a
	OLD_FILES+=usr/share/terminfo/n/news31-o
	OLD_FILES+=usr/share/terminfo/n/news33
	OLD_FILES+=usr/share/terminfo/n/news40
	OLD_FILES+=usr/share/terminfo/n/news40-a
	OLD_FILES+=usr/share/terminfo/n/news40-o
	OLD_FILES+=usr/share/terminfo/n/news42
	OLD_FILES+=usr/share/terminfo/n/newscbm
	OLD_FILES+=usr/share/terminfo/n/newscbm-a
	OLD_FILES+=usr/share/terminfo/n/newscbm-o
	OLD_FILES+=usr/share/terminfo/n/newscbm33
	OLD_FILES+=usr/share/terminfo/n/next
	OLD_FILES+=usr/share/terminfo/n/nextshell
	OLD_FILES+=usr/share/terminfo/n/northstar
	OLD_FILES+=usr/share/terminfo/n/nsterm
	OLD_FILES+=usr/share/terminfo/n/nsterm+7
	OLD_FILES+=usr/share/terminfo/n/nsterm+acs
	OLD_FILES+=usr/share/terminfo/n/nsterm+c
	OLD_FILES+=usr/share/terminfo/n/nsterm+c41
	OLD_FILES+=usr/share/terminfo/n/nsterm+mac
	OLD_FILES+=usr/share/terminfo/n/nsterm+s
	OLD_FILES+=usr/share/terminfo/n/nsterm-16color
	OLD_FILES+=usr/share/terminfo/n/nsterm-256color
	OLD_FILES+=usr/share/terminfo/n/nsterm-7
	OLD_FILES+=usr/share/terminfo/n/nsterm-7-c
	OLD_FILES+=usr/share/terminfo/n/nsterm-7-c-s
	OLD_FILES+=usr/share/terminfo/n/nsterm-7-m
	OLD_FILES+=usr/share/terminfo/n/nsterm-7-m-s
	OLD_FILES+=usr/share/terminfo/n/nsterm-7-s
	OLD_FILES+=usr/share/terminfo/n/nsterm-acs
	OLD_FILES+=usr/share/terminfo/n/nsterm-acs-c
	OLD_FILES+=usr/share/terminfo/n/nsterm-acs-c-s
	OLD_FILES+=usr/share/terminfo/n/nsterm-acs-m
	OLD_FILES+=usr/share/terminfo/n/nsterm-acs-m-s
	OLD_FILES+=usr/share/terminfo/n/nsterm-acs-s
	OLD_FILES+=usr/share/terminfo/n/nsterm-bce
	OLD_FILES+=usr/share/terminfo/n/nsterm-build309
	OLD_FILES+=usr/share/terminfo/n/nsterm-build326
	OLD_FILES+=usr/share/terminfo/n/nsterm-build343
	OLD_FILES+=usr/share/terminfo/n/nsterm-build361
	OLD_FILES+=usr/share/terminfo/n/nsterm-build400
	OLD_FILES+=usr/share/terminfo/n/nsterm-c
	OLD_FILES+=usr/share/terminfo/n/nsterm-c-7
	OLD_FILES+=usr/share/terminfo/n/nsterm-c-acs
	OLD_FILES+=usr/share/terminfo/n/nsterm-c-s
	OLD_FILES+=usr/share/terminfo/n/nsterm-c-s-7
	OLD_FILES+=usr/share/terminfo/n/nsterm-c-s-acs
	OLD_FILES+=usr/share/terminfo/n/nsterm-direct
	OLD_FILES+=usr/share/terminfo/n/nsterm-m
	OLD_FILES+=usr/share/terminfo/n/nsterm-m-7
	OLD_FILES+=usr/share/terminfo/n/nsterm-m-acs
	OLD_FILES+=usr/share/terminfo/n/nsterm-m-s
	OLD_FILES+=usr/share/terminfo/n/nsterm-m-s-7
	OLD_FILES+=usr/share/terminfo/n/nsterm-m-s-acs
	OLD_FILES+=usr/share/terminfo/n/nsterm-old
	OLD_FILES+=usr/share/terminfo/n/nsterm-s
	OLD_FILES+=usr/share/terminfo/n/nsterm-s-7
	OLD_FILES+=usr/share/terminfo/n/nsterm-s-acs
	OLD_FILES+=usr/share/terminfo/n/ntconsole
	OLD_FILES+=usr/share/terminfo/n/ntconsole-100
	OLD_FILES+=usr/share/terminfo/n/ntconsole-100-nti
	OLD_FILES+=usr/share/terminfo/n/ntconsole-25
	OLD_FILES+=usr/share/terminfo/n/ntconsole-25-nti
	OLD_FILES+=usr/share/terminfo/n/ntconsole-25-w
	OLD_FILES+=usr/share/terminfo/n/ntconsole-25-w-vt
	OLD_FILES+=usr/share/terminfo/n/ntconsole-35
	OLD_FILES+=usr/share/terminfo/n/ntconsole-35-nti
	OLD_FILES+=usr/share/terminfo/n/ntconsole-35-w
	OLD_FILES+=usr/share/terminfo/n/ntconsole-50
	OLD_FILES+=usr/share/terminfo/n/ntconsole-50-nti
	OLD_FILES+=usr/share/terminfo/n/ntconsole-50-w
	OLD_FILES+=usr/share/terminfo/n/ntconsole-60
	OLD_FILES+=usr/share/terminfo/n/ntconsole-60-nti
	OLD_FILES+=usr/share/terminfo/n/ntconsole-60-w
	OLD_FILES+=usr/share/terminfo/n/ntconsole-w
	OLD_FILES+=usr/share/terminfo/n/ntconsole-w-vt
	OLD_FILES+=usr/share/terminfo/n/nwe501
	OLD_FILES+=usr/share/terminfo/n/nwe501-a
	OLD_FILES+=usr/share/terminfo/n/nwe501-o
	OLD_FILES+=usr/share/terminfo/n/nwp-511
	OLD_FILES+=usr/share/terminfo/n/nwp-517
	OLD_FILES+=usr/share/terminfo/n/nwp-517-w
	OLD_FILES+=usr/share/terminfo/n/nwp251-a
	OLD_FILES+=usr/share/terminfo/n/nwp251-o
	OLD_FILES+=usr/share/terminfo/n/nwp511
	OLD_FILES+=usr/share/terminfo/n/nwp512
	OLD_FILES+=usr/share/terminfo/n/nwp512-a
	OLD_FILES+=usr/share/terminfo/n/nwp512-o
	OLD_FILES+=usr/share/terminfo/n/nwp513
	OLD_FILES+=usr/share/terminfo/n/nwp513-a
	OLD_FILES+=usr/share/terminfo/n/nwp513-o
	OLD_FILES+=usr/share/terminfo/n/nwp514
	OLD_FILES+=usr/share/terminfo/n/nwp514-a
	OLD_FILES+=usr/share/terminfo/n/nwp514-o
	OLD_FILES+=usr/share/terminfo/n/nwp517
	OLD_FILES+=usr/share/terminfo/n/nwp517-w
	OLD_FILES+=usr/share/terminfo/n/nwp518
	OLD_FILES+=usr/share/terminfo/n/nwp518-a
	OLD_FILES+=usr/share/terminfo/n/nwp518-o
	OLD_FILES+=usr/share/terminfo/n/nxterm
	OLD_DIRS+=usr/share/terminfo/n/
	OLD_FILES+=usr/share/terminfo/o/o31
	OLD_FILES+=usr/share/terminfo/o/o4112-nd
	OLD_FILES+=usr/share/terminfo/o/o85h
	OLD_FILES+=usr/share/terminfo/o/oabm85h
	OLD_FILES+=usr/share/terminfo/o/oblit
	OLD_FILES+=usr/share/terminfo/o/oc100
	OLD_FILES+=usr/share/terminfo/o/oconcept
	OLD_FILES+=usr/share/terminfo/o/ofcons
	OLD_FILES+=usr/share/terminfo/o/ojerq
	OLD_FILES+=usr/share/terminfo/o/old-st
	OLD_FILES+=usr/share/terminfo/o/oldibmpc3
	OLD_FILES+=usr/share/terminfo/o/oldpc3
	OLD_FILES+=usr/share/terminfo/o/oldsun
	OLD_FILES+=usr/share/terminfo/o/omron
	OLD_FILES+=usr/share/terminfo/o/opennt
	OLD_FILES+=usr/share/terminfo/o/opennt-100
	OLD_FILES+=usr/share/terminfo/o/opennt-100-nti
	OLD_FILES+=usr/share/terminfo/o/opennt-25
	OLD_FILES+=usr/share/terminfo/o/opennt-25-nti
	OLD_FILES+=usr/share/terminfo/o/opennt-25-w
	OLD_FILES+=usr/share/terminfo/o/opennt-25-w-vt
	OLD_FILES+=usr/share/terminfo/o/opennt-35
	OLD_FILES+=usr/share/terminfo/o/opennt-35-nti
	OLD_FILES+=usr/share/terminfo/o/opennt-35-w
	OLD_FILES+=usr/share/terminfo/o/opennt-50
	OLD_FILES+=usr/share/terminfo/o/opennt-50-nti
	OLD_FILES+=usr/share/terminfo/o/opennt-50-w
	OLD_FILES+=usr/share/terminfo/o/opennt-60
	OLD_FILES+=usr/share/terminfo/o/opennt-60-nti
	OLD_FILES+=usr/share/terminfo/o/opennt-60-w
	OLD_FILES+=usr/share/terminfo/o/opennt-nti
	OLD_FILES+=usr/share/terminfo/o/opennt-w
	OLD_FILES+=usr/share/terminfo/o/opennt-w-vt
	OLD_FILES+=usr/share/terminfo/o/opus3n1+
	OLD_FILES+=usr/share/terminfo/o/origibmpc3
	OLD_FILES+=usr/share/terminfo/o/origpc3
	OLD_FILES+=usr/share/terminfo/o/os9LII
	OLD_FILES+=usr/share/terminfo/o/osborne
	OLD_FILES+=usr/share/terminfo/o/osborne-w
	OLD_FILES+=usr/share/terminfo/o/osborne1
	OLD_FILES+=usr/share/terminfo/o/osborne1-w
	OLD_FILES+=usr/share/terminfo/o/osexec
	OLD_FILES+=usr/share/terminfo/o/otek4112
	OLD_FILES+=usr/share/terminfo/o/otek4113
	OLD_FILES+=usr/share/terminfo/o/otek4114
	OLD_FILES+=usr/share/terminfo/o/otek4115
	OLD_FILES+=usr/share/terminfo/o/owl
	OLD_DIRS+=usr/share/terminfo/o/
	OLD_FILES+=usr/share/terminfo/p/p12
	OLD_FILES+=usr/share/terminfo/p/p12-m
	OLD_FILES+=usr/share/terminfo/p/p12-m-w
	OLD_FILES+=usr/share/terminfo/p/p12-w
	OLD_FILES+=usr/share/terminfo/p/p14
	OLD_FILES+=usr/share/terminfo/p/p14-m
	OLD_FILES+=usr/share/terminfo/p/p14-m-w
	OLD_FILES+=usr/share/terminfo/p/p14-w
	OLD_FILES+=usr/share/terminfo/p/p19
	OLD_FILES+=usr/share/terminfo/p/p4
	OLD_FILES+=usr/share/terminfo/p/p5
	OLD_FILES+=usr/share/terminfo/p/p7
	OLD_FILES+=usr/share/terminfo/p/p8
	OLD_FILES+=usr/share/terminfo/p/p8-w
	OLD_FILES+=usr/share/terminfo/p/p8gl
	OLD_FILES+=usr/share/terminfo/p/p9
	OLD_FILES+=usr/share/terminfo/p/p9-8
	OLD_FILES+=usr/share/terminfo/p/p9-8-w
	OLD_FILES+=usr/share/terminfo/p/p9-w
	OLD_FILES+=usr/share/terminfo/p/pc-coherent
	OLD_FILES+=usr/share/terminfo/p/pc-minix
	OLD_FILES+=usr/share/terminfo/p/pc-venix
	OLD_FILES+=usr/share/terminfo/p/pc3
	OLD_FILES+=usr/share/terminfo/p/pc3-bold
	OLD_FILES+=usr/share/terminfo/p/pc3r
	OLD_FILES+=usr/share/terminfo/p/pc3r-m
	OLD_FILES+=usr/share/terminfo/p/pc6300plus
	OLD_FILES+=usr/share/terminfo/p/pc7300
	OLD_FILES+=usr/share/terminfo/p/pcansi
	OLD_FILES+=usr/share/terminfo/p/pcansi-25
	OLD_FILES+=usr/share/terminfo/p/pcansi-25-m
	OLD_FILES+=usr/share/terminfo/p/pcansi-33
	OLD_FILES+=usr/share/terminfo/p/pcansi-33-m
	OLD_FILES+=usr/share/terminfo/p/pcansi-43
	OLD_FILES+=usr/share/terminfo/p/pcansi-43-m
	OLD_FILES+=usr/share/terminfo/p/pcansi-m
	OLD_FILES+=usr/share/terminfo/p/pcansi-mono
	OLD_FILES+=usr/share/terminfo/p/pcansi25
	OLD_FILES+=usr/share/terminfo/p/pcansi25m
	OLD_FILES+=usr/share/terminfo/p/pcansi33
	OLD_FILES+=usr/share/terminfo/p/pcansi33m
	OLD_FILES+=usr/share/terminfo/p/pcansi43
	OLD_FILES+=usr/share/terminfo/p/pccon
	OLD_FILES+=usr/share/terminfo/p/pccon+base
	OLD_FILES+=usr/share/terminfo/p/pccon+colors
	OLD_FILES+=usr/share/terminfo/p/pccon+keys
	OLD_FILES+=usr/share/terminfo/p/pccon+sgr+acs
	OLD_FILES+=usr/share/terminfo/p/pccon+sgr+acs0
	OLD_FILES+=usr/share/terminfo/p/pccon-m
	OLD_FILES+=usr/share/terminfo/p/pccon0
	OLD_FILES+=usr/share/terminfo/p/pccon0-m
	OLD_FILES+=usr/share/terminfo/p/pccons
	OLD_FILES+=usr/share/terminfo/p/pcconsole
	OLD_FILES+=usr/share/terminfo/p/pcix
	OLD_FILES+=usr/share/terminfo/p/pckermit
	OLD_FILES+=usr/share/terminfo/p/pckermit12
	OLD_FILES+=usr/share/terminfo/p/pckermit120
	OLD_FILES+=usr/share/terminfo/p/pcmw
	OLD_FILES+=usr/share/terminfo/p/pcplot
	OLD_FILES+=usr/share/terminfo/p/pcvt25
	OLD_FILES+=usr/share/terminfo/p/pcvt25-color
	OLD_FILES+=usr/share/terminfo/p/pcvt25w
	OLD_FILES+=usr/share/terminfo/p/pcvt28
	OLD_FILES+=usr/share/terminfo/p/pcvt28w
	OLD_FILES+=usr/share/terminfo/p/pcvt35
	OLD_FILES+=usr/share/terminfo/p/pcvt35w
	OLD_FILES+=usr/share/terminfo/p/pcvt40
	OLD_FILES+=usr/share/terminfo/p/pcvt40w
	OLD_FILES+=usr/share/terminfo/p/pcvt43
	OLD_FILES+=usr/share/terminfo/p/pcvt43w
	OLD_FILES+=usr/share/terminfo/p/pcvt50
	OLD_FILES+=usr/share/terminfo/p/pcvt50w
	OLD_FILES+=usr/share/terminfo/p/pcvtXX
	OLD_FILES+=usr/share/terminfo/p/pcz19
	OLD_FILES+=usr/share/terminfo/p/pe1100
	OLD_FILES+=usr/share/terminfo/p/pe1200
	OLD_FILES+=usr/share/terminfo/p/pe1251
	OLD_FILES+=usr/share/terminfo/p/pe550
	OLD_FILES+=usr/share/terminfo/p/pe6100
	OLD_FILES+=usr/share/terminfo/p/pe6300
	OLD_FILES+=usr/share/terminfo/p/pe6312
	OLD_FILES+=usr/share/terminfo/p/pe7000c
	OLD_FILES+=usr/share/terminfo/p/pe7000m
	OLD_FILES+=usr/share/terminfo/p/pilot
	OLD_FILES+=usr/share/terminfo/p/pmcons
	OLD_FILES+=usr/share/terminfo/p/pmconsole
	OLD_FILES+=usr/share/terminfo/p/printer
	OLD_FILES+=usr/share/terminfo/p/prism12
	OLD_FILES+=usr/share/terminfo/p/prism12-m
	OLD_FILES+=usr/share/terminfo/p/prism12-m-w
	OLD_FILES+=usr/share/terminfo/p/prism12-w
	OLD_FILES+=usr/share/terminfo/p/prism14
	OLD_FILES+=usr/share/terminfo/p/prism14-m
	OLD_FILES+=usr/share/terminfo/p/prism14-m-w
	OLD_FILES+=usr/share/terminfo/p/prism14-w
	OLD_FILES+=usr/share/terminfo/p/prism2
	OLD_FILES+=usr/share/terminfo/p/prism4
	OLD_FILES+=usr/share/terminfo/p/prism5
	OLD_FILES+=usr/share/terminfo/p/prism7
	OLD_FILES+=usr/share/terminfo/p/prism8
	OLD_FILES+=usr/share/terminfo/p/prism8-w
	OLD_FILES+=usr/share/terminfo/p/prism8gl
	OLD_FILES+=usr/share/terminfo/p/prism9
	OLD_FILES+=usr/share/terminfo/p/prism9-8
	OLD_FILES+=usr/share/terminfo/p/prism9-8-w
	OLD_FILES+=usr/share/terminfo/p/prism9-w
	OLD_FILES+=usr/share/terminfo/p/pro350
	OLD_FILES+=usr/share/terminfo/p/ps300
	OLD_FILES+=usr/share/terminfo/p/psterm
	OLD_FILES+=usr/share/terminfo/p/psterm-80x24
	OLD_FILES+=usr/share/terminfo/p/psterm-90x28
	OLD_FILES+=usr/share/terminfo/p/psterm-96x48
	OLD_FILES+=usr/share/terminfo/p/psterm-basic
	OLD_FILES+=usr/share/terminfo/p/psterm-fast
	OLD_FILES+=usr/share/terminfo/p/psx_ansi
	OLD_FILES+=usr/share/terminfo/p/pt100
	OLD_FILES+=usr/share/terminfo/p/pt100w
	OLD_FILES+=usr/share/terminfo/p/pt200
	OLD_FILES+=usr/share/terminfo/p/pt200w
	OLD_FILES+=usr/share/terminfo/p/pt210
	OLD_FILES+=usr/share/terminfo/p/pt250
	OLD_FILES+=usr/share/terminfo/p/pt250w
	OLD_FILES+=usr/share/terminfo/p/pt505
	OLD_FILES+=usr/share/terminfo/p/pt505-22
	OLD_FILES+=usr/share/terminfo/p/pt505-24
	OLD_FILES+=usr/share/terminfo/p/pty
	OLD_FILES+=usr/share/terminfo/p/putty
	OLD_FILES+=usr/share/terminfo/p/putty+fnkeys
	OLD_FILES+=usr/share/terminfo/p/putty+fnkeys+esc
	OLD_FILES+=usr/share/terminfo/p/putty+fnkeys+linux
	OLD_FILES+=usr/share/terminfo/p/putty+fnkeys+sco
	OLD_FILES+=usr/share/terminfo/p/putty+fnkeys+vt100
	OLD_FILES+=usr/share/terminfo/p/putty+fnkeys+vt400
	OLD_FILES+=usr/share/terminfo/p/putty+fnkeys+xterm
	OLD_FILES+=usr/share/terminfo/p/putty+keypad
	OLD_FILES+=usr/share/terminfo/p/putty+screen
	OLD_FILES+=usr/share/terminfo/p/putty-256color
	OLD_FILES+=usr/share/terminfo/p/putty-m1
	OLD_FILES+=usr/share/terminfo/p/putty-m1b
	OLD_FILES+=usr/share/terminfo/p/putty-m2
	OLD_FILES+=usr/share/terminfo/p/putty-noapp
	OLD_FILES+=usr/share/terminfo/p/putty-sco
	OLD_FILES+=usr/share/terminfo/p/putty-screen
	OLD_FILES+=usr/share/terminfo/p/putty-vt100
	OLD_DIRS+=usr/share/terminfo/p/
	OLD_FILES+=usr/share/terminfo/q/qansi
	OLD_FILES+=usr/share/terminfo/q/qansi-g
	OLD_FILES+=usr/share/terminfo/q/qansi-m
	OLD_FILES+=usr/share/terminfo/q/qansi-t
	OLD_FILES+=usr/share/terminfo/q/qansi-w
	OLD_FILES+=usr/share/terminfo/q/qdcons
	OLD_FILES+=usr/share/terminfo/q/qdss
	OLD_FILES+=usr/share/terminfo/q/qnx
	OLD_FILES+=usr/share/terminfo/q/qnx4
	OLD_FILES+=usr/share/terminfo/q/qnxm
	OLD_FILES+=usr/share/terminfo/q/qnxt
	OLD_FILES+=usr/share/terminfo/q/qnxt2
	OLD_FILES+=usr/share/terminfo/q/qnxt4
	OLD_FILES+=usr/share/terminfo/q/qnxtmono
	OLD_FILES+=usr/share/terminfo/q/qnxw
	OLD_FILES+=usr/share/terminfo/q/qume
	OLD_FILES+=usr/share/terminfo/q/qume5
	OLD_FILES+=usr/share/terminfo/q/qvt101
	OLD_FILES+=usr/share/terminfo/q/qvt101+
	OLD_FILES+=usr/share/terminfo/q/qvt101p
	OLD_FILES+=usr/share/terminfo/q/qvt102
	OLD_FILES+=usr/share/terminfo/q/qvt103
	OLD_FILES+=usr/share/terminfo/q/qvt103-w
	OLD_FILES+=usr/share/terminfo/q/qvt108
	OLD_FILES+=usr/share/terminfo/q/qvt119
	OLD_FILES+=usr/share/terminfo/q/qvt119+
	OLD_FILES+=usr/share/terminfo/q/qvt119+-25
	OLD_FILES+=usr/share/terminfo/q/qvt119+-25-w
	OLD_FILES+=usr/share/terminfo/q/qvt119+-w
	OLD_FILES+=usr/share/terminfo/q/qvt119-25-w
	OLD_FILES+=usr/share/terminfo/q/qvt119-w
	OLD_FILES+=usr/share/terminfo/q/qvt119p
	OLD_FILES+=usr/share/terminfo/q/qvt119p-25
	OLD_FILES+=usr/share/terminfo/q/qvt119p-25-w
	OLD_FILES+=usr/share/terminfo/q/qvt119p-w
	OLD_FILES+=usr/share/terminfo/q/qvt203
	OLD_FILES+=usr/share/terminfo/q/qvt203+
	OLD_FILES+=usr/share/terminfo/q/qvt203-25
	OLD_FILES+=usr/share/terminfo/q/qvt203-25-w
	OLD_FILES+=usr/share/terminfo/q/qvt203-w
	OLD_FILES+=usr/share/terminfo/q/qvt203-w-am
	OLD_DIRS+=usr/share/terminfo/q/
	OLD_FILES+=usr/share/terminfo/r/rbcomm
	OLD_FILES+=usr/share/terminfo/r/rbcomm-nam
	OLD_FILES+=usr/share/terminfo/r/rbcomm-w
	OLD_FILES+=usr/share/terminfo/r/rca
	OLD_FILES+=usr/share/terminfo/r/rcons
	OLD_FILES+=usr/share/terminfo/r/rcons-color
	OLD_FILES+=usr/share/terminfo/r/rebus3180
	OLD_FILES+=usr/share/terminfo/r/regent
	OLD_FILES+=usr/share/terminfo/r/regent100
	OLD_FILES+=usr/share/terminfo/r/regent20
	OLD_FILES+=usr/share/terminfo/r/regent200
	OLD_FILES+=usr/share/terminfo/r/regent25
	OLD_FILES+=usr/share/terminfo/r/regent40
	OLD_FILES+=usr/share/terminfo/r/regent40+
	OLD_FILES+=usr/share/terminfo/r/regent60
	OLD_FILES+=usr/share/terminfo/r/rt6221
	OLD_FILES+=usr/share/terminfo/r/rt6221-w
	OLD_FILES+=usr/share/terminfo/r/rtpc
	OLD_FILES+=usr/share/terminfo/r/rxvt
	OLD_FILES+=usr/share/terminfo/r/rxvt+pcfkeys
	OLD_FILES+=usr/share/terminfo/r/rxvt-16color
	OLD_FILES+=usr/share/terminfo/r/rxvt-256color
	OLD_FILES+=usr/share/terminfo/r/rxvt-88color
	OLD_FILES+=usr/share/terminfo/r/rxvt-basic
	OLD_FILES+=usr/share/terminfo/r/rxvt-color
	OLD_FILES+=usr/share/terminfo/r/rxvt-cygwin
	OLD_FILES+=usr/share/terminfo/r/rxvt-cygwin-native
	OLD_FILES+=usr/share/terminfo/r/rxvt-xpm
	OLD_DIRS+=usr/share/terminfo/r/
	OLD_FILES+=usr/share/terminfo/s/s4
	OLD_FILES+=usr/share/terminfo/s/sb1
	OLD_FILES+=usr/share/terminfo/s/sb2
	OLD_FILES+=usr/share/terminfo/s/sb3
	OLD_FILES+=usr/share/terminfo/s/sbi
	OLD_FILES+=usr/share/terminfo/s/sbobcat
	OLD_FILES+=usr/share/terminfo/s/sc410
	OLD_FILES+=usr/share/terminfo/s/sc415
	OLD_FILES+=usr/share/terminfo/s/scanset
	OLD_FILES+=usr/share/terminfo/s/scoansi
	OLD_FILES+=usr/share/terminfo/s/scoansi-new
	OLD_FILES+=usr/share/terminfo/s/scoansi-old
	OLD_FILES+=usr/share/terminfo/s/screen
	OLD_FILES+=usr/share/terminfo/s/screen+fkeys
	OLD_FILES+=usr/share/terminfo/s/screen+italics
	OLD_FILES+=usr/share/terminfo/s/screen-16color
	OLD_FILES+=usr/share/terminfo/s/screen-16color-bce
	OLD_FILES+=usr/share/terminfo/s/screen-16color-bce-s
	OLD_FILES+=usr/share/terminfo/s/screen-16color-s
	OLD_FILES+=usr/share/terminfo/s/screen-256color
	OLD_FILES+=usr/share/terminfo/s/screen-256color-bce
	OLD_FILES+=usr/share/terminfo/s/screen-256color-bce-s
	OLD_FILES+=usr/share/terminfo/s/screen-256color-s
	OLD_FILES+=usr/share/terminfo/s/screen-bce
	OLD_FILES+=usr/share/terminfo/s/screen-bce.Eterm
	OLD_FILES+=usr/share/terminfo/s/screen-bce.gnome
	OLD_FILES+=usr/share/terminfo/s/screen-bce.konsole
	OLD_FILES+=usr/share/terminfo/s/screen-bce.linux
	OLD_FILES+=usr/share/terminfo/s/screen-bce.mrxvt
	OLD_FILES+=usr/share/terminfo/s/screen-bce.rxvt
	OLD_FILES+=usr/share/terminfo/s/screen-bce.xterm-new
	OLD_FILES+=usr/share/terminfo/s/screen-s
	OLD_FILES+=usr/share/terminfo/s/screen-w
	OLD_FILES+=usr/share/terminfo/s/screen.Eterm
	OLD_FILES+=usr/share/terminfo/s/screen.gnome
	OLD_FILES+=usr/share/terminfo/s/screen.konsole
	OLD_FILES+=usr/share/terminfo/s/screen.konsole-256color
	OLD_FILES+=usr/share/terminfo/s/screen.linux
	OLD_FILES+=usr/share/terminfo/s/screen.linux-m1
	OLD_FILES+=usr/share/terminfo/s/screen.linux-m1b
	OLD_FILES+=usr/share/terminfo/s/screen.linux-m2
	OLD_FILES+=usr/share/terminfo/s/screen.linux-s
	OLD_FILES+=usr/share/terminfo/s/screen.minitel1
	OLD_FILES+=usr/share/terminfo/s/screen.minitel1-nb
	OLD_FILES+=usr/share/terminfo/s/screen.minitel12-80
	OLD_FILES+=usr/share/terminfo/s/screen.minitel1b
	OLD_FILES+=usr/share/terminfo/s/screen.minitel1b-80
	OLD_FILES+=usr/share/terminfo/s/screen.minitel1b-nb
	OLD_FILES+=usr/share/terminfo/s/screen.minitel2-80
	OLD_FILES+=usr/share/terminfo/s/screen.mlterm
	OLD_FILES+=usr/share/terminfo/s/screen.mlterm-256color
	OLD_FILES+=usr/share/terminfo/s/screen.mrxvt
	OLD_FILES+=usr/share/terminfo/s/screen.putty
	OLD_FILES+=usr/share/terminfo/s/screen.putty-256color
	OLD_FILES+=usr/share/terminfo/s/screen.putty-m1
	OLD_FILES+=usr/share/terminfo/s/screen.putty-m1b
	OLD_FILES+=usr/share/terminfo/s/screen.putty-m2
	OLD_FILES+=usr/share/terminfo/s/screen.rxvt
	OLD_FILES+=usr/share/terminfo/s/screen.teraterm
	OLD_FILES+=usr/share/terminfo/s/screen.vte
	OLD_FILES+=usr/share/terminfo/s/screen.vte-256color
	OLD_FILES+=usr/share/terminfo/s/screen.xterm-256color
	OLD_FILES+=usr/share/terminfo/s/screen.xterm-new
	OLD_FILES+=usr/share/terminfo/s/screen.xterm-r6
	OLD_FILES+=usr/share/terminfo/s/screen.xterm-xfree86
	OLD_FILES+=usr/share/terminfo/s/screen2
	OLD_FILES+=usr/share/terminfo/s/screen3
	OLD_FILES+=usr/share/terminfo/s/screen4
	OLD_FILES+=usr/share/terminfo/s/screen5
	OLD_FILES+=usr/share/terminfo/s/screwpoint
	OLD_FILES+=usr/share/terminfo/s/scrhp
	OLD_FILES+=usr/share/terminfo/s/scrt
	OLD_FILES+=usr/share/terminfo/s/securecrt
	OLD_FILES+=usr/share/terminfo/s/sibo
	OLD_FILES+=usr/share/terminfo/s/simpleterm
	OLD_FILES+=usr/share/terminfo/s/simterm
	OLD_FILES+=usr/share/terminfo/s/soroc
	OLD_FILES+=usr/share/terminfo/s/soroc120
	OLD_FILES+=usr/share/terminfo/s/soroc140
	OLD_FILES+=usr/share/terminfo/s/spinwriter
	OLD_FILES+=usr/share/terminfo/s/st
	OLD_FILES+=usr/share/terminfo/s/st-0.6
	OLD_FILES+=usr/share/terminfo/s/st-0.7
	OLD_FILES+=usr/share/terminfo/s/st-0.8
	OLD_FILES+=usr/share/terminfo/s/st-16color
	OLD_FILES+=usr/share/terminfo/s/st-256color
	OLD_FILES+=usr/share/terminfo/s/st-direct
	OLD_FILES+=usr/share/terminfo/s/st52
	OLD_FILES+=usr/share/terminfo/s/st52-color
	OLD_FILES+=usr/share/terminfo/s/st52-m
	OLD_FILES+=usr/share/terminfo/s/st52-old
	OLD_FILES+=usr/share/terminfo/s/stterm
	OLD_FILES+=usr/share/terminfo/s/stterm-16color
	OLD_FILES+=usr/share/terminfo/s/stterm-256color
	OLD_FILES+=usr/share/terminfo/s/stv52
	OLD_FILES+=usr/share/terminfo/s/stv52pc
	OLD_FILES+=usr/share/terminfo/s/sun
	OLD_FILES+=usr/share/terminfo/s/sun+sl
	OLD_FILES+=usr/share/terminfo/s/sun-1
	OLD_FILES+=usr/share/terminfo/s/sun-12
	OLD_FILES+=usr/share/terminfo/s/sun-17
	OLD_FILES+=usr/share/terminfo/s/sun-24
	OLD_FILES+=usr/share/terminfo/s/sun-34
	OLD_FILES+=usr/share/terminfo/s/sun-48
	OLD_FILES+=usr/share/terminfo/s/sun-c
	OLD_FILES+=usr/share/terminfo/s/sun-cgsix
	OLD_FILES+=usr/share/terminfo/s/sun-cmd
	OLD_FILES+=usr/share/terminfo/s/sun-color
	OLD_FILES+=usr/share/terminfo/s/sun-e
	OLD_FILES+=usr/share/terminfo/s/sun-e-s
	OLD_FILES+=usr/share/terminfo/s/sun-il
	OLD_FILES+=usr/share/terminfo/s/sun-nic
	OLD_FILES+=usr/share/terminfo/s/sun-s
	OLD_FILES+=usr/share/terminfo/s/sun-s-e
	OLD_FILES+=usr/share/terminfo/s/sun-ss5
	OLD_FILES+=usr/share/terminfo/s/sun-type4
	OLD_FILES+=usr/share/terminfo/s/sun1
	OLD_FILES+=usr/share/terminfo/s/sun2
	OLD_FILES+=usr/share/terminfo/s/sune
	OLD_FILES+=usr/share/terminfo/s/superbee
	OLD_FILES+=usr/share/terminfo/s/superbee-xsb
	OLD_FILES+=usr/share/terminfo/s/superbeeic
	OLD_FILES+=usr/share/terminfo/s/superbrain
	OLD_FILES+=usr/share/terminfo/s/sv80
	OLD_FILES+=usr/share/terminfo/s/swtp
	OLD_FILES+=usr/share/terminfo/s/synertek
	OLD_FILES+=usr/share/terminfo/s/synertek380
	OLD_FILES+=usr/share/terminfo/s/system1
	OLD_DIRS+=usr/share/terminfo/s/

	OLD_FILES+=usr/share/terminfo/t/t10
	OLD_FILES+=usr/share/terminfo/t/t1061
	OLD_FILES+=usr/share/terminfo/t/t1061f
	OLD_FILES+=usr/share/terminfo/t/t16
	OLD_FILES+=usr/share/terminfo/t/t3700
	OLD_FILES+=usr/share/terminfo/t/t3800
	OLD_FILES+=usr/share/terminfo/t/t653x
	OLD_FILES+=usr/share/terminfo/t/tab
	OLD_FILES+=usr/share/terminfo/t/tab132
	OLD_FILES+=usr/share/terminfo/t/tab132-15
	OLD_FILES+=usr/share/terminfo/t/tab132-rv
	OLD_FILES+=usr/share/terminfo/t/tab132-w
	OLD_FILES+=usr/share/terminfo/t/tab132-w-rv
	OLD_FILES+=usr/share/terminfo/t/tandem6510
	OLD_FILES+=usr/share/terminfo/t/tandem653
	OLD_FILES+=usr/share/terminfo/t/tek
	OLD_FILES+=usr/share/terminfo/t/tek4012
	OLD_FILES+=usr/share/terminfo/t/tek4013
	OLD_FILES+=usr/share/terminfo/t/tek4014
	OLD_FILES+=usr/share/terminfo/t/tek4014-sm
	OLD_FILES+=usr/share/terminfo/t/tek4015
	OLD_FILES+=usr/share/terminfo/t/tek4015-sm
	OLD_FILES+=usr/share/terminfo/t/tek4023
	OLD_FILES+=usr/share/terminfo/t/tek4024
	OLD_FILES+=usr/share/terminfo/t/tek4025
	OLD_FILES+=usr/share/terminfo/t/tek4025-17
	OLD_FILES+=usr/share/terminfo/t/tek4025-17-ws
	OLD_FILES+=usr/share/terminfo/t/tek4025-cr
	OLD_FILES+=usr/share/terminfo/t/tek4025-ex
	OLD_FILES+=usr/share/terminfo/t/tek4025a
	OLD_FILES+=usr/share/terminfo/t/tek4025ex
	OLD_FILES+=usr/share/terminfo/t/tek4027
	OLD_FILES+=usr/share/terminfo/t/tek4027-ex
	OLD_FILES+=usr/share/terminfo/t/tek4105
	OLD_FILES+=usr/share/terminfo/t/tek4105-30
	OLD_FILES+=usr/share/terminfo/t/tek4105a
	OLD_FILES+=usr/share/terminfo/t/tek4106brl
	OLD_FILES+=usr/share/terminfo/t/tek4107
	OLD_FILES+=usr/share/terminfo/t/tek4107brl
	OLD_FILES+=usr/share/terminfo/t/tek4109
	OLD_FILES+=usr/share/terminfo/t/tek4109brl
	OLD_FILES+=usr/share/terminfo/t/tek4112
	OLD_FILES+=usr/share/terminfo/t/tek4112-5
	OLD_FILES+=usr/share/terminfo/t/tek4112-nd
	OLD_FILES+=usr/share/terminfo/t/tek4113
	OLD_FILES+=usr/share/terminfo/t/tek4113-34
	OLD_FILES+=usr/share/terminfo/t/tek4113-nd
	OLD_FILES+=usr/share/terminfo/t/tek4114
	OLD_FILES+=usr/share/terminfo/t/tek4115
	OLD_FILES+=usr/share/terminfo/t/tek4125
	OLD_FILES+=usr/share/terminfo/t/tek4205
	OLD_FILES+=usr/share/terminfo/t/tek4207
	OLD_FILES+=usr/share/terminfo/t/tek4207-s
	OLD_FILES+=usr/share/terminfo/t/tek4404
	OLD_FILES+=usr/share/terminfo/t/teken
	OLD_FILES+=usr/share/terminfo/t/teleray
	OLD_FILES+=usr/share/terminfo/t/teletec
	OLD_FILES+=usr/share/terminfo/t/teraterm
	OLD_FILES+=usr/share/terminfo/t/teraterm-256color
	OLD_FILES+=usr/share/terminfo/t/teraterm2.3
	OLD_FILES+=usr/share/terminfo/t/teraterm4.59
	OLD_FILES+=usr/share/terminfo/t/teraterm4.97
	OLD_FILES+=usr/share/terminfo/t/terminator
	OLD_FILES+=usr/share/terminfo/t/terminet
	OLD_FILES+=usr/share/terminfo/t/terminet1200
	OLD_FILES+=usr/share/terminfo/t/terminet300
	OLD_FILES+=usr/share/terminfo/t/terminology
	OLD_FILES+=usr/share/terminfo/t/terminology-0.6.1
	OLD_FILES+=usr/share/terminfo/t/terminology-1.0.0
	OLD_FILES+=usr/share/terminfo/t/terminology-1.8.1
	OLD_FILES+=usr/share/terminfo/t/termite
	OLD_FILES+=usr/share/terminfo/t/tgtelnet
	OLD_FILES+=usr/share/terminfo/t/ti700
	OLD_FILES+=usr/share/terminfo/t/ti703
	OLD_FILES+=usr/share/terminfo/t/ti703-w
	OLD_FILES+=usr/share/terminfo/t/ti707
	OLD_FILES+=usr/share/terminfo/t/ti707-w
	OLD_FILES+=usr/share/terminfo/t/ti733
	OLD_FILES+=usr/share/terminfo/t/ti735
	OLD_FILES+=usr/share/terminfo/t/ti745
	OLD_FILES+=usr/share/terminfo/t/ti800
	OLD_FILES+=usr/share/terminfo/t/ti916
	OLD_FILES+=usr/share/terminfo/t/ti916-132
	OLD_FILES+=usr/share/terminfo/t/ti916-220-7
	OLD_FILES+=usr/share/terminfo/t/ti916-220-8
	OLD_FILES+=usr/share/terminfo/t/ti916-8
	OLD_FILES+=usr/share/terminfo/t/ti916-8-132
	OLD_FILES+=usr/share/terminfo/t/ti924
	OLD_FILES+=usr/share/terminfo/t/ti924-8
	OLD_FILES+=usr/share/terminfo/t/ti924-8w
	OLD_FILES+=usr/share/terminfo/t/ti924w
	OLD_FILES+=usr/share/terminfo/t/ti926
	OLD_FILES+=usr/share/terminfo/t/ti926-8
	OLD_FILES+=usr/share/terminfo/t/ti928
	OLD_FILES+=usr/share/terminfo/t/ti928-8
	OLD_FILES+=usr/share/terminfo/t/ti931
	OLD_FILES+=usr/share/terminfo/t/ti_ansi
	OLD_FILES+=usr/share/terminfo/t/tkterm
	OLD_FILES+=usr/share/terminfo/t/tmux
	OLD_FILES+=usr/share/terminfo/t/tmux-256color
	OLD_FILES+=usr/share/terminfo/t/tmux-direct
	OLD_FILES+=usr/share/terminfo/t/tn1200
	OLD_FILES+=usr/share/terminfo/t/tn300
	OLD_FILES+=usr/share/terminfo/t/trs16
	OLD_FILES+=usr/share/terminfo/t/trs2
	OLD_FILES+=usr/share/terminfo/t/trs80II
	OLD_FILES+=usr/share/terminfo/t/trsII
	OLD_FILES+=usr/share/terminfo/t/ts-1
	OLD_FILES+=usr/share/terminfo/t/ts-1p
	OLD_FILES+=usr/share/terminfo/t/ts1
	OLD_FILES+=usr/share/terminfo/t/ts100
	OLD_FILES+=usr/share/terminfo/t/ts100-ctxt
	OLD_FILES+=usr/share/terminfo/t/ts100-sp
	OLD_FILES+=usr/share/terminfo/t/ts1p
	OLD_FILES+=usr/share/terminfo/t/tt
	OLD_FILES+=usr/share/terminfo/t/tt505-22
	OLD_FILES+=usr/share/terminfo/t/tt52
	OLD_FILES+=usr/share/terminfo/t/tty33
	OLD_FILES+=usr/share/terminfo/t/tty35
	OLD_FILES+=usr/share/terminfo/t/tty37
	OLD_FILES+=usr/share/terminfo/t/tty40
	OLD_FILES+=usr/share/terminfo/t/tty43
	OLD_FILES+=usr/share/terminfo/t/tty4420
	OLD_FILES+=usr/share/terminfo/t/tty4424
	OLD_FILES+=usr/share/terminfo/t/tty4424-1
	OLD_FILES+=usr/share/terminfo/t/tty4424m
	OLD_FILES+=usr/share/terminfo/t/tty4426
	OLD_FILES+=usr/share/terminfo/t/tty5410
	OLD_FILES+=usr/share/terminfo/t/tty5410-w
	OLD_FILES+=usr/share/terminfo/t/tty5410v1
	OLD_FILES+=usr/share/terminfo/t/tty5410v1-w
	OLD_FILES+=usr/share/terminfo/t/tty5420
	OLD_FILES+=usr/share/terminfo/t/tty5420+nl
	OLD_FILES+=usr/share/terminfo/t/tty5420-nl
	OLD_FILES+=usr/share/terminfo/t/tty5420-rv
	OLD_FILES+=usr/share/terminfo/t/tty5420-rv-nl
	OLD_FILES+=usr/share/terminfo/t/tty5420-w
	OLD_FILES+=usr/share/terminfo/t/tty5420-w-nl
	OLD_FILES+=usr/share/terminfo/t/tty5420-w-rv
	OLD_FILES+=usr/share/terminfo/t/tty5420-w-rv-n
	OLD_FILES+=usr/share/terminfo/t/tty5425
	OLD_FILES+=usr/share/terminfo/t/tty5425-nl
	OLD_FILES+=usr/share/terminfo/t/tty5425-w
	OLD_FILES+=usr/share/terminfo/t/tty5620
	OLD_FILES+=usr/share/terminfo/t/tty5620-1
	OLD_FILES+=usr/share/terminfo/t/tty5620-24
	OLD_FILES+=usr/share/terminfo/t/tty5620-34
	OLD_FILES+=usr/share/terminfo/t/tty5620-s
	OLD_FILES+=usr/share/terminfo/t/ttydmd
	OLD_FILES+=usr/share/terminfo/t/tvi803
	OLD_FILES+=usr/share/terminfo/t/tvi9065
	OLD_FILES+=usr/share/terminfo/t/tvi910
	OLD_FILES+=usr/share/terminfo/t/tvi910+
	OLD_FILES+=usr/share/terminfo/t/tvi912
	OLD_FILES+=usr/share/terminfo/t/tvi912b
	OLD_FILES+=usr/share/terminfo/t/tvi912b+2p
	OLD_FILES+=usr/share/terminfo/t/tvi912b+dim
	OLD_FILES+=usr/share/terminfo/t/tvi912b+mc
	OLD_FILES+=usr/share/terminfo/t/tvi912b+printer
	OLD_FILES+=usr/share/terminfo/t/tvi912b+vb
	OLD_FILES+=usr/share/terminfo/t/tvi912b-2p
	OLD_FILES+=usr/share/terminfo/t/tvi912b-2p-mc
	OLD_FILES+=usr/share/terminfo/t/tvi912b-2p-p
	OLD_FILES+=usr/share/terminfo/t/tvi912b-2p-unk
	OLD_FILES+=usr/share/terminfo/t/tvi912b-mc
	OLD_FILES+=usr/share/terminfo/t/tvi912b-mc-2p
	OLD_FILES+=usr/share/terminfo/t/tvi912b-mc-vb
	OLD_FILES+=usr/share/terminfo/t/tvi912b-p
	OLD_FILES+=usr/share/terminfo/t/tvi912b-p-2p
	OLD_FILES+=usr/share/terminfo/t/tvi912b-p-vb
	OLD_FILES+=usr/share/terminfo/t/tvi912b-unk
	OLD_FILES+=usr/share/terminfo/t/tvi912b-unk-2p
	OLD_FILES+=usr/share/terminfo/t/tvi912b-unk-vb
	OLD_FILES+=usr/share/terminfo/t/tvi912b-vb
	OLD_FILES+=usr/share/terminfo/t/tvi912b-vb-mc
	OLD_FILES+=usr/share/terminfo/t/tvi912b-vb-p
	OLD_FILES+=usr/share/terminfo/t/tvi912b-vb-unk
	OLD_FILES+=usr/share/terminfo/t/tvi912c
	OLD_FILES+=usr/share/terminfo/t/tvi912c-2p
	OLD_FILES+=usr/share/terminfo/t/tvi912c-2p-mc
	OLD_FILES+=usr/share/terminfo/t/tvi912c-2p-p
	OLD_FILES+=usr/share/terminfo/t/tvi912c-2p-unk
	OLD_FILES+=usr/share/terminfo/t/tvi912c-mc
	OLD_FILES+=usr/share/terminfo/t/tvi912c-mc-2p
	OLD_FILES+=usr/share/terminfo/t/tvi912c-mc-vb
	OLD_FILES+=usr/share/terminfo/t/tvi912c-p
	OLD_FILES+=usr/share/terminfo/t/tvi912c-p-2p
	OLD_FILES+=usr/share/terminfo/t/tvi912c-p-vb
	OLD_FILES+=usr/share/terminfo/t/tvi912c-unk
	OLD_FILES+=usr/share/terminfo/t/tvi912c-unk-2p
	OLD_FILES+=usr/share/terminfo/t/tvi912c-unk-vb
	OLD_FILES+=usr/share/terminfo/t/tvi912c-vb
	OLD_FILES+=usr/share/terminfo/t/tvi912c-vb-mc
	OLD_FILES+=usr/share/terminfo/t/tvi912c-vb-p
	OLD_FILES+=usr/share/terminfo/t/tvi912c-vb-unk
	OLD_FILES+=usr/share/terminfo/t/tvi912cc
	OLD_FILES+=usr/share/terminfo/t/tvi914
	OLD_FILES+=usr/share/terminfo/t/tvi920
	OLD_FILES+=usr/share/terminfo/t/tvi920b
	OLD_FILES+=usr/share/terminfo/t/tvi920b+fn
	OLD_FILES+=usr/share/terminfo/t/tvi920b-2p
	OLD_FILES+=usr/share/terminfo/t/tvi920b-2p-mc
	OLD_FILES+=usr/share/terminfo/t/tvi920b-2p-p
	OLD_FILES+=usr/share/terminfo/t/tvi920b-2p-unk
	OLD_FILES+=usr/share/terminfo/t/tvi920b-mc
	OLD_FILES+=usr/share/terminfo/t/tvi920b-mc-2p
	OLD_FILES+=usr/share/terminfo/t/tvi920b-mc-vb
	OLD_FILES+=usr/share/terminfo/t/tvi920b-p
	OLD_FILES+=usr/share/terminfo/t/tvi920b-p-2p
	OLD_FILES+=usr/share/terminfo/t/tvi920b-p-vb
	OLD_FILES+=usr/share/terminfo/t/tvi920b-unk
	OLD_FILES+=usr/share/terminfo/t/tvi920b-unk-2p
	OLD_FILES+=usr/share/terminfo/t/tvi920b-unk-vb
	OLD_FILES+=usr/share/terminfo/t/tvi920b-vb
	OLD_FILES+=usr/share/terminfo/t/tvi920b-vb-mc
	OLD_FILES+=usr/share/terminfo/t/tvi920b-vb-p
	OLD_FILES+=usr/share/terminfo/t/tvi920b-vb-unk
	OLD_FILES+=usr/share/terminfo/t/tvi920c
	OLD_FILES+=usr/share/terminfo/t/tvi920c-2p
	OLD_FILES+=usr/share/terminfo/t/tvi920c-2p-mc
	OLD_FILES+=usr/share/terminfo/t/tvi920c-2p-p
	OLD_FILES+=usr/share/terminfo/t/tvi920c-2p-unk
	OLD_FILES+=usr/share/terminfo/t/tvi920c-mc
	OLD_FILES+=usr/share/terminfo/t/tvi920c-mc-2p
	OLD_FILES+=usr/share/terminfo/t/tvi920c-mc-vb
	OLD_FILES+=usr/share/terminfo/t/tvi920c-p
	OLD_FILES+=usr/share/terminfo/t/tvi920c-p-2p
	OLD_FILES+=usr/share/terminfo/t/tvi920c-p-vb
	OLD_FILES+=usr/share/terminfo/t/tvi920c-unk
	OLD_FILES+=usr/share/terminfo/t/tvi920c-unk-2p
	OLD_FILES+=usr/share/terminfo/t/tvi920c-unk-vb
	OLD_FILES+=usr/share/terminfo/t/tvi920c-vb
	OLD_FILES+=usr/share/terminfo/t/tvi920c-vb-mc
	OLD_FILES+=usr/share/terminfo/t/tvi920c-vb-p
	OLD_FILES+=usr/share/terminfo/t/tvi920c-vb-unk
	OLD_FILES+=usr/share/terminfo/t/tvi921
	OLD_FILES+=usr/share/terminfo/t/tvi924
	OLD_FILES+=usr/share/terminfo/t/tvi925
	OLD_FILES+=usr/share/terminfo/t/tvi925-hi
	OLD_FILES+=usr/share/terminfo/t/tvi92B
	OLD_FILES+=usr/share/terminfo/t/tvi92D
	OLD_FILES+=usr/share/terminfo/t/tvi950
	OLD_FILES+=usr/share/terminfo/t/tvi950-2p
	OLD_FILES+=usr/share/terminfo/t/tvi950-4p
	OLD_FILES+=usr/share/terminfo/t/tvi950-rv
	OLD_FILES+=usr/share/terminfo/t/tvi950-rv-2p
	OLD_FILES+=usr/share/terminfo/t/tvi950-rv-4p
	OLD_FILES+=usr/share/terminfo/t/tvi955
	OLD_FILES+=usr/share/terminfo/t/tvi955-hb
	OLD_FILES+=usr/share/terminfo/t/tvi955-w
	OLD_FILES+=usr/share/terminfo/t/tvi970
	OLD_FILES+=usr/share/terminfo/t/tvi970-2p
	OLD_FILES+=usr/share/terminfo/t/tvi970-vb
	OLD_FILES+=usr/share/terminfo/t/tvipt
	OLD_FILES+=usr/share/terminfo/t/tw100
	OLD_FILES+=usr/share/terminfo/t/tw52
	OLD_FILES+=usr/share/terminfo/t/tw52-color
	OLD_FILES+=usr/share/terminfo/t/tw52-m
	OLD_FILES+=usr/share/terminfo/t/tws-generic
	OLD_FILES+=usr/share/terminfo/t/tws2102-sna
	OLD_FILES+=usr/share/terminfo/t/tws2103
	OLD_FILES+=usr/share/terminfo/t/tws2103-sna
	OLD_DIRS+=usr/share/terminfo/t/
	OLD_FILES+=usr/share/terminfo/u/ultima2
	OLD_FILES+=usr/share/terminfo/u/ultimaII
	OLD_FILES+=usr/share/terminfo/u/uniterm
	OLD_FILES+=usr/share/terminfo/u/uniterm49
	OLD_FILES+=usr/share/terminfo/u/unixpc
	OLD_FILES+=usr/share/terminfo/u/unknown
	OLD_FILES+=usr/share/terminfo/u/uts30
	OLD_FILES+=usr/share/terminfo/u/uwin
	OLD_DIRS+=usr/share/terminfo/u/
	OLD_FILES+=usr/share/terminfo/v/v200-nam
	OLD_FILES+=usr/share/terminfo/v/v320n
	OLD_FILES+=usr/share/terminfo/v/v3220
	OLD_FILES+=usr/share/terminfo/v/v5410
	OLD_FILES+=usr/share/terminfo/v/vanilla
	OLD_FILES+=usr/share/terminfo/v/vapple
	OLD_FILES+=usr/share/terminfo/v/vc103
	OLD_FILES+=usr/share/terminfo/v/vc203
	OLD_FILES+=usr/share/terminfo/v/vc303
	OLD_FILES+=usr/share/terminfo/v/vc303a
	OLD_FILES+=usr/share/terminfo/v/vc403a
	OLD_FILES+=usr/share/terminfo/v/vc404
	OLD_FILES+=usr/share/terminfo/v/vc404-s
	OLD_FILES+=usr/share/terminfo/v/vc414
	OLD_FILES+=usr/share/terminfo/v/vc414h
	OLD_FILES+=usr/share/terminfo/v/vc415
	OLD_FILES+=usr/share/terminfo/v/venix
	OLD_FILES+=usr/share/terminfo/v/versaterm
	OLD_FILES+=usr/share/terminfo/v/vi200
	OLD_FILES+=usr/share/terminfo/v/vi200-f
	OLD_FILES+=usr/share/terminfo/v/vi200-rv
	OLD_FILES+=usr/share/terminfo/v/vi300
	OLD_FILES+=usr/share/terminfo/v/vi300-old
	OLD_FILES+=usr/share/terminfo/v/vi50
	OLD_FILES+=usr/share/terminfo/v/vi500
	OLD_FILES+=usr/share/terminfo/v/vi50adm
	OLD_FILES+=usr/share/terminfo/v/vi55
	OLD_FILES+=usr/share/terminfo/v/vi550
	OLD_FILES+=usr/share/terminfo/v/vi603
	OLD_FILES+=usr/share/terminfo/v/viewdata
	OLD_FILES+=usr/share/terminfo/v/viewdata-o
	OLD_FILES+=usr/share/terminfo/v/viewdata-rv
	OLD_FILES+=usr/share/terminfo/v/viewpoint
	OLD_FILES+=usr/share/terminfo/v/viewpoint3a+
	OLD_FILES+=usr/share/terminfo/v/viewpoint60
	OLD_FILES+=usr/share/terminfo/v/viewpoint90
	OLD_FILES+=usr/share/terminfo/v/vip
	OLD_FILES+=usr/share/terminfo/v/vip-H
	OLD_FILES+=usr/share/terminfo/v/vip-Hw
	OLD_FILES+=usr/share/terminfo/v/vip-w
	OLD_FILES+=usr/share/terminfo/v/vip7800-H
	OLD_FILES+=usr/share/terminfo/v/vip7800-Hw
	OLD_FILES+=usr/share/terminfo/v/vip7800-w
	OLD_FILES+=usr/share/terminfo/v/visa50
	OLD_FILES+=usr/share/terminfo/v/visual603
	OLD_FILES+=usr/share/terminfo/v/vitty
	OLD_FILES+=usr/share/terminfo/v/vk100
	OLD_FILES+=usr/share/terminfo/v/vp3a+
	OLD_FILES+=usr/share/terminfo/v/vp60
	OLD_FILES+=usr/share/terminfo/v/vp90
	OLD_FILES+=usr/share/terminfo/v/vremote
	OLD_FILES+=usr/share/terminfo/v/vs100
	OLD_FILES+=usr/share/terminfo/v/vs100-x10
	OLD_FILES+=usr/share/terminfo/v/vsc
	OLD_FILES+=usr/share/terminfo/v/vscode
	OLD_FILES+=usr/share/terminfo/v/vscode-direct
	OLD_FILES+=usr/share/terminfo/v/vt-61
	OLD_FILES+=usr/share/terminfo/v/vt-utf8
	OLD_FILES+=usr/share/terminfo/v/vt100
	OLD_FILES+=usr/share/terminfo/v/vt100+
	OLD_FILES+=usr/share/terminfo/v/vt100+4bsd
	OLD_FILES+=usr/share/terminfo/v/vt100+enq
	OLD_FILES+=usr/share/terminfo/v/vt100+fnkeys
	OLD_FILES+=usr/share/terminfo/v/vt100+keypad
	OLD_FILES+=usr/share/terminfo/v/vt100+pfkeys
	OLD_FILES+=usr/share/terminfo/v/vt100-am
	OLD_FILES+=usr/share/terminfo/v/vt100-bm
	OLD_FILES+=usr/share/terminfo/v/vt100-bm-o
	OLD_FILES+=usr/share/terminfo/v/vt100-bot-s
	OLD_FILES+=usr/share/terminfo/v/vt100-nam
	OLD_FILES+=usr/share/terminfo/v/vt100-nam-w
	OLD_FILES+=usr/share/terminfo/v/vt100-nav
	OLD_FILES+=usr/share/terminfo/v/vt100-nav-w
	OLD_FILES+=usr/share/terminfo/v/vt100-putty
	OLD_FILES+=usr/share/terminfo/v/vt100-s
	OLD_FILES+=usr/share/terminfo/v/vt100-s-bot
	OLD_FILES+=usr/share/terminfo/v/vt100-s-top
	OLD_FILES+=usr/share/terminfo/v/vt100-top-s
	OLD_FILES+=usr/share/terminfo/v/vt100-vb
	OLD_FILES+=usr/share/terminfo/v/vt100-w
	OLD_FILES+=usr/share/terminfo/v/vt100-w-am
	OLD_FILES+=usr/share/terminfo/v/vt100-w-nam
	OLD_FILES+=usr/share/terminfo/v/vt100-w-nav
	OLD_FILES+=usr/share/terminfo/v/vt100nam
	OLD_FILES+=usr/share/terminfo/v/vt102
	OLD_FILES+=usr/share/terminfo/v/vt102+enq
	OLD_FILES+=usr/share/terminfo/v/vt102-nsgr
	OLD_FILES+=usr/share/terminfo/v/vt102-w
	OLD_FILES+=usr/share/terminfo/v/vt125
	OLD_FILES+=usr/share/terminfo/v/vt131
	OLD_FILES+=usr/share/terminfo/v/vt132
	OLD_FILES+=usr/share/terminfo/v/vt200
	OLD_FILES+=usr/share/terminfo/v/vt200-8
	OLD_FILES+=usr/share/terminfo/v/vt200-8bit
	OLD_FILES+=usr/share/terminfo/v/vt200-js
	OLD_FILES+=usr/share/terminfo/v/vt200-old
	OLD_FILES+=usr/share/terminfo/v/vt200-w
	OLD_FILES+=usr/share/terminfo/v/vt220
	OLD_FILES+=usr/share/terminfo/v/vt220+cvis
	OLD_FILES+=usr/share/terminfo/v/vt220+cvis8
	OLD_FILES+=usr/share/terminfo/v/vt220+keypad
	OLD_FILES+=usr/share/terminfo/v/vt220+pcedit
	OLD_FILES+=usr/share/terminfo/v/vt220+vtedit
	OLD_FILES+=usr/share/terminfo/v/vt220-8
	OLD_FILES+=usr/share/terminfo/v/vt220-8bit
	OLD_FILES+=usr/share/terminfo/v/vt220-base
	OLD_FILES+=usr/share/terminfo/v/vt220-js
	OLD_FILES+=usr/share/terminfo/v/vt220-nam
	OLD_FILES+=usr/share/terminfo/v/vt220-old
	OLD_FILES+=usr/share/terminfo/v/vt220-w
	OLD_FILES+=usr/share/terminfo/v/vt220d
	OLD_FILES+=usr/share/terminfo/v/vt300
	OLD_FILES+=usr/share/terminfo/v/vt300-nam
	OLD_FILES+=usr/share/terminfo/v/vt300-w
	OLD_FILES+=usr/share/terminfo/v/vt300-w-nam
	OLD_FILES+=usr/share/terminfo/v/vt320
	OLD_FILES+=usr/share/terminfo/v/vt320-k3
	OLD_FILES+=usr/share/terminfo/v/vt320-k311
	OLD_FILES+=usr/share/terminfo/v/vt320-nam
	OLD_FILES+=usr/share/terminfo/v/vt320-w
	OLD_FILES+=usr/share/terminfo/v/vt320-w-nam
	OLD_FILES+=usr/share/terminfo/v/vt320nam
	OLD_FILES+=usr/share/terminfo/v/vt330
	OLD_FILES+=usr/share/terminfo/v/vt340
	OLD_FILES+=usr/share/terminfo/v/vt400
	OLD_FILES+=usr/share/terminfo/v/vt400-24
	OLD_FILES+=usr/share/terminfo/v/vt420
	OLD_FILES+=usr/share/terminfo/v/vt420+lrmm
	OLD_FILES+=usr/share/terminfo/v/vt420f
	OLD_FILES+=usr/share/terminfo/v/vt420pc
	OLD_FILES+=usr/share/terminfo/v/vt420pcdos
	OLD_FILES+=usr/share/terminfo/v/vt50
	OLD_FILES+=usr/share/terminfo/v/vt50h
	OLD_FILES+=usr/share/terminfo/v/vt510
	OLD_FILES+=usr/share/terminfo/v/vt510pc
	OLD_FILES+=usr/share/terminfo/v/vt510pcdos
	OLD_FILES+=usr/share/terminfo/v/vt52
	OLD_FILES+=usr/share/terminfo/v/vt52+keypad
	OLD_FILES+=usr/share/terminfo/v/vt52-basic
	OLD_FILES+=usr/share/terminfo/v/vt520
	OLD_FILES+=usr/share/terminfo/v/vt520ansi
	OLD_FILES+=usr/share/terminfo/v/vt525
	OLD_FILES+=usr/share/terminfo/v/vt61
	OLD_FILES+=usr/share/terminfo/v/vt61.5
	OLD_FILES+=usr/share/terminfo/v/vte
	OLD_FILES+=usr/share/terminfo/v/vte+pcfkeys
	OLD_FILES+=usr/share/terminfo/v/vte-2007
	OLD_FILES+=usr/share/terminfo/v/vte-2008
	OLD_FILES+=usr/share/terminfo/v/vte-2012
	OLD_FILES+=usr/share/terminfo/v/vte-2014
	OLD_FILES+=usr/share/terminfo/v/vte-2017
	OLD_FILES+=usr/share/terminfo/v/vte-2018
	OLD_FILES+=usr/share/terminfo/v/vte-256color
	OLD_FILES+=usr/share/terminfo/v/vte-direct
	OLD_FILES+=usr/share/terminfo/v/vtnt
	OLD_FILES+=usr/share/terminfo/v/vv100
	OLD_FILES+=usr/share/terminfo/v/vwmterm
	OLD_DIRS+=usr/share/terminfo/v/
	OLD_FILES+=usr/share/terminfo/w/wren
	OLD_FILES+=usr/share/terminfo/w/wrenw
	OLD_FILES+=usr/share/terminfo/w/wsiris
	OLD_FILES+=usr/share/terminfo/w/wsvt25
	OLD_FILES+=usr/share/terminfo/w/wsvt25m
	OLD_FILES+=usr/share/terminfo/w/wy-75ap
	OLD_FILES+=usr/share/terminfo/w/wy-99fgt
	OLD_FILES+=usr/share/terminfo/w/wy-99fgta
	OLD_FILES+=usr/share/terminfo/w/wy100
	OLD_FILES+=usr/share/terminfo/w/wy100q
	OLD_FILES+=usr/share/terminfo/w/wy120
	OLD_FILES+=usr/share/terminfo/w/wy120-25
	OLD_FILES+=usr/share/terminfo/w/wy120-25-w
	OLD_FILES+=usr/share/terminfo/w/wy120-vb
	OLD_FILES+=usr/share/terminfo/w/wy120-w
	OLD_FILES+=usr/share/terminfo/w/wy120-w-vb
	OLD_FILES+=usr/share/terminfo/w/wy120-wvb
	OLD_FILES+=usr/share/terminfo/w/wy150
	OLD_FILES+=usr/share/terminfo/w/wy150-25
	OLD_FILES+=usr/share/terminfo/w/wy150-25-w
	OLD_FILES+=usr/share/terminfo/w/wy150-vb
	OLD_FILES+=usr/share/terminfo/w/wy150-w
	OLD_FILES+=usr/share/terminfo/w/wy150-w-vb
	OLD_FILES+=usr/share/terminfo/w/wy160
	OLD_FILES+=usr/share/terminfo/w/wy160-25
	OLD_FILES+=usr/share/terminfo/w/wy160-25-w
	OLD_FILES+=usr/share/terminfo/w/wy160-42
	OLD_FILES+=usr/share/terminfo/w/wy160-42-w
	OLD_FILES+=usr/share/terminfo/w/wy160-43
	OLD_FILES+=usr/share/terminfo/w/wy160-43-w
	OLD_FILES+=usr/share/terminfo/w/wy160-tek
	OLD_FILES+=usr/share/terminfo/w/wy160-vb
	OLD_FILES+=usr/share/terminfo/w/wy160-w
	OLD_FILES+=usr/share/terminfo/w/wy160-w-vb
	OLD_FILES+=usr/share/terminfo/w/wy160-wvb
	OLD_FILES+=usr/share/terminfo/w/wy185
	OLD_FILES+=usr/share/terminfo/w/wy185-24
	OLD_FILES+=usr/share/terminfo/w/wy185-vb
	OLD_FILES+=usr/share/terminfo/w/wy185-w
	OLD_FILES+=usr/share/terminfo/w/wy185-wvb
	OLD_FILES+=usr/share/terminfo/w/wy30
	OLD_FILES+=usr/share/terminfo/w/wy30-mc
	OLD_FILES+=usr/share/terminfo/w/wy30-vb
	OLD_FILES+=usr/share/terminfo/w/wy325
	OLD_FILES+=usr/share/terminfo/w/wy325-25
	OLD_FILES+=usr/share/terminfo/w/wy325-25w
	OLD_FILES+=usr/share/terminfo/w/wy325-42
	OLD_FILES+=usr/share/terminfo/w/wy325-42w
	OLD_FILES+=usr/share/terminfo/w/wy325-42w-vb
	OLD_FILES+=usr/share/terminfo/w/wy325-42wvb
	OLD_FILES+=usr/share/terminfo/w/wy325-43
	OLD_FILES+=usr/share/terminfo/w/wy325-43w
	OLD_FILES+=usr/share/terminfo/w/wy325-43w-vb
	OLD_FILES+=usr/share/terminfo/w/wy325-43wvb
	OLD_FILES+=usr/share/terminfo/w/wy325-80
	OLD_FILES+=usr/share/terminfo/w/wy325-vb
	OLD_FILES+=usr/share/terminfo/w/wy325-w
	OLD_FILES+=usr/share/terminfo/w/wy325-w-vb
	OLD_FILES+=usr/share/terminfo/w/wy325-wvb
	OLD_FILES+=usr/share/terminfo/w/wy325w-24
	OLD_FILES+=usr/share/terminfo/w/wy350
	OLD_FILES+=usr/share/terminfo/w/wy350-vb
	OLD_FILES+=usr/share/terminfo/w/wy350-w
	OLD_FILES+=usr/share/terminfo/w/wy350-wvb
	OLD_FILES+=usr/share/terminfo/w/wy370
	OLD_FILES+=usr/share/terminfo/w/wy370-101k
	OLD_FILES+=usr/share/terminfo/w/wy370-105k
	OLD_FILES+=usr/share/terminfo/w/wy370-EPC
	OLD_FILES+=usr/share/terminfo/w/wy370-nk
	OLD_FILES+=usr/share/terminfo/w/wy370-rv
	OLD_FILES+=usr/share/terminfo/w/wy370-tek
	OLD_FILES+=usr/share/terminfo/w/wy370-vb
	OLD_FILES+=usr/share/terminfo/w/wy370-w
	OLD_FILES+=usr/share/terminfo/w/wy370-wvb
	OLD_FILES+=usr/share/terminfo/w/wy50
	OLD_FILES+=usr/share/terminfo/w/wy50-mc
	OLD_FILES+=usr/share/terminfo/w/wy50-vb
	OLD_FILES+=usr/share/terminfo/w/wy50-w
	OLD_FILES+=usr/share/terminfo/w/wy50-wvb
	OLD_FILES+=usr/share/terminfo/w/wy520
	OLD_FILES+=usr/share/terminfo/w/wy520-24
	OLD_FILES+=usr/share/terminfo/w/wy520-36
	OLD_FILES+=usr/share/terminfo/w/wy520-36pc
	OLD_FILES+=usr/share/terminfo/w/wy520-36w
	OLD_FILES+=usr/share/terminfo/w/wy520-36wpc
	OLD_FILES+=usr/share/terminfo/w/wy520-48
	OLD_FILES+=usr/share/terminfo/w/wy520-48pc
	OLD_FILES+=usr/share/terminfo/w/wy520-48w
	OLD_FILES+=usr/share/terminfo/w/wy520-48wpc
	OLD_FILES+=usr/share/terminfo/w/wy520-epc
	OLD_FILES+=usr/share/terminfo/w/wy520-epc-24
	OLD_FILES+=usr/share/terminfo/w/wy520-epc-vb
	OLD_FILES+=usr/share/terminfo/w/wy520-epc-w
	OLD_FILES+=usr/share/terminfo/w/wy520-epc-wvb
	OLD_FILES+=usr/share/terminfo/w/wy520-vb
	OLD_FILES+=usr/share/terminfo/w/wy520-w
	OLD_FILES+=usr/share/terminfo/w/wy520-wvb
	OLD_FILES+=usr/share/terminfo/w/wy60
	OLD_FILES+=usr/share/terminfo/w/wy60-25
	OLD_FILES+=usr/share/terminfo/w/wy60-25-w
	OLD_FILES+=usr/share/terminfo/w/wy60-316X
	OLD_FILES+=usr/share/terminfo/w/wy60-42
	OLD_FILES+=usr/share/terminfo/w/wy60-42-w
	OLD_FILES+=usr/share/terminfo/w/wy60-43
	OLD_FILES+=usr/share/terminfo/w/wy60-43-w
	OLD_FILES+=usr/share/terminfo/w/wy60-AT
	OLD_FILES+=usr/share/terminfo/w/wy60-PC
	OLD_FILES+=usr/share/terminfo/w/wy60-vb
	OLD_FILES+=usr/share/terminfo/w/wy60-w
	OLD_FILES+=usr/share/terminfo/w/wy60-w-vb
	OLD_FILES+=usr/share/terminfo/w/wy60-wvb
	OLD_FILES+=usr/share/terminfo/w/wy75
	OLD_FILES+=usr/share/terminfo/w/wy75-mc
	OLD_FILES+=usr/share/terminfo/w/wy75-vb
	OLD_FILES+=usr/share/terminfo/w/wy75-w
	OLD_FILES+=usr/share/terminfo/w/wy75-wvb
	OLD_FILES+=usr/share/terminfo/w/wy75ap
	OLD_FILES+=usr/share/terminfo/w/wy85
	OLD_FILES+=usr/share/terminfo/w/wy85-8bit
	OLD_FILES+=usr/share/terminfo/w/wy85-vb
	OLD_FILES+=usr/share/terminfo/w/wy85-w
	OLD_FILES+=usr/share/terminfo/w/wy85-wvb
	OLD_FILES+=usr/share/terminfo/w/wy99-ansi
	OLD_FILES+=usr/share/terminfo/w/wy99a-ansi
	OLD_FILES+=usr/share/terminfo/w/wy99f
	OLD_FILES+=usr/share/terminfo/w/wy99fa
	OLD_FILES+=usr/share/terminfo/w/wy99fgt
	OLD_FILES+=usr/share/terminfo/w/wy99fgta
	OLD_FILES+=usr/share/terminfo/w/wy99gt
	OLD_FILES+=usr/share/terminfo/w/wy99gt-25
	OLD_FILES+=usr/share/terminfo/w/wy99gt-25-w
	OLD_FILES+=usr/share/terminfo/w/wy99gt-tek
	OLD_FILES+=usr/share/terminfo/w/wy99gt-vb
	OLD_FILES+=usr/share/terminfo/w/wy99gt-w
	OLD_FILES+=usr/share/terminfo/w/wy99gt-w-vb
	OLD_FILES+=usr/share/terminfo/w/wy99gt-wvb
	OLD_FILES+=usr/share/terminfo/w/wyse-325
	OLD_FILES+=usr/share/terminfo/w/wyse-75ap
	OLD_FILES+=usr/share/terminfo/w/wyse-vp
	OLD_FILES+=usr/share/terminfo/w/wyse120
	OLD_FILES+=usr/share/terminfo/w/wyse120-25
	OLD_FILES+=usr/share/terminfo/w/wyse120-25-w
	OLD_FILES+=usr/share/terminfo/w/wyse120-vb
	OLD_FILES+=usr/share/terminfo/w/wyse120-w
	OLD_FILES+=usr/share/terminfo/w/wyse120-wvb
	OLD_FILES+=usr/share/terminfo/w/wyse150
	OLD_FILES+=usr/share/terminfo/w/wyse150-25
	OLD_FILES+=usr/share/terminfo/w/wyse150-25-w
	OLD_FILES+=usr/share/terminfo/w/wyse150-vb
	OLD_FILES+=usr/share/terminfo/w/wyse150-w
	OLD_FILES+=usr/share/terminfo/w/wyse150-w-vb
	OLD_FILES+=usr/share/terminfo/w/wyse160
	OLD_FILES+=usr/share/terminfo/w/wyse160-25
	OLD_FILES+=usr/share/terminfo/w/wyse160-25-w
	OLD_FILES+=usr/share/terminfo/w/wyse160-42
	OLD_FILES+=usr/share/terminfo/w/wyse160-42-w
	OLD_FILES+=usr/share/terminfo/w/wyse160-43
	OLD_FILES+=usr/share/terminfo/w/wyse160-43-w
	OLD_FILES+=usr/share/terminfo/w/wyse160-vb
	OLD_FILES+=usr/share/terminfo/w/wyse160-w
	OLD_FILES+=usr/share/terminfo/w/wyse160-wvb
	OLD_FILES+=usr/share/terminfo/w/wyse185
	OLD_FILES+=usr/share/terminfo/w/wyse185-24
	OLD_FILES+=usr/share/terminfo/w/wyse185-vb
	OLD_FILES+=usr/share/terminfo/w/wyse185-w
	OLD_FILES+=usr/share/terminfo/w/wyse185-wvb
	OLD_FILES+=usr/share/terminfo/w/wyse30
	OLD_FILES+=usr/share/terminfo/w/wyse30-mc
	OLD_FILES+=usr/share/terminfo/w/wyse30-vb
	OLD_FILES+=usr/share/terminfo/w/wyse325
	OLD_FILES+=usr/share/terminfo/w/wyse325-25
	OLD_FILES+=usr/share/terminfo/w/wyse325-25w
	OLD_FILES+=usr/share/terminfo/w/wyse325-42
	OLD_FILES+=usr/share/terminfo/w/wyse325-42w
	OLD_FILES+=usr/share/terminfo/w/wyse325-43
	OLD_FILES+=usr/share/terminfo/w/wyse325-43w
	OLD_FILES+=usr/share/terminfo/w/wyse325-vb
	OLD_FILES+=usr/share/terminfo/w/wyse325-w
	OLD_FILES+=usr/share/terminfo/w/wyse325-wvb
	OLD_FILES+=usr/share/terminfo/w/wyse350
	OLD_FILES+=usr/share/terminfo/w/wyse350-vb
	OLD_FILES+=usr/share/terminfo/w/wyse350-w
	OLD_FILES+=usr/share/terminfo/w/wyse350-wvb
	OLD_FILES+=usr/share/terminfo/w/wyse370
	OLD_FILES+=usr/share/terminfo/w/wyse50
	OLD_FILES+=usr/share/terminfo/w/wyse50-mc
	OLD_FILES+=usr/share/terminfo/w/wyse50-vb
	OLD_FILES+=usr/share/terminfo/w/wyse50-w
	OLD_FILES+=usr/share/terminfo/w/wyse50-wvb
	OLD_FILES+=usr/share/terminfo/w/wyse520
	OLD_FILES+=usr/share/terminfo/w/wyse520-24
	OLD_FILES+=usr/share/terminfo/w/wyse520-36
	OLD_FILES+=usr/share/terminfo/w/wyse520-36pc
	OLD_FILES+=usr/share/terminfo/w/wyse520-36w
	OLD_FILES+=usr/share/terminfo/w/wyse520-36wpc
	OLD_FILES+=usr/share/terminfo/w/wyse520-48
	OLD_FILES+=usr/share/terminfo/w/wyse520-48pc
	OLD_FILES+=usr/share/terminfo/w/wyse520-48w
	OLD_FILES+=usr/share/terminfo/w/wyse520-48wpc
	OLD_FILES+=usr/share/terminfo/w/wyse520-epc
	OLD_FILES+=usr/share/terminfo/w/wyse520-epc-w
	OLD_FILES+=usr/share/terminfo/w/wyse520-p-wvb
	OLD_FILES+=usr/share/terminfo/w/wyse520-pc-24
	OLD_FILES+=usr/share/terminfo/w/wyse520-pc-vb
	OLD_FILES+=usr/share/terminfo/w/wyse520-vb
	OLD_FILES+=usr/share/terminfo/w/wyse520-w
	OLD_FILES+=usr/share/terminfo/w/wyse520-wvb
	OLD_FILES+=usr/share/terminfo/w/wyse60
	OLD_FILES+=usr/share/terminfo/w/wyse60-25
	OLD_FILES+=usr/share/terminfo/w/wyse60-25-w
	OLD_FILES+=usr/share/terminfo/w/wyse60-316X
	OLD_FILES+=usr/share/terminfo/w/wyse60-42
	OLD_FILES+=usr/share/terminfo/w/wyse60-42-w
	OLD_FILES+=usr/share/terminfo/w/wyse60-43
	OLD_FILES+=usr/share/terminfo/w/wyse60-43-w
	OLD_FILES+=usr/share/terminfo/w/wyse60-AT
	OLD_FILES+=usr/share/terminfo/w/wyse60-PC
	OLD_FILES+=usr/share/terminfo/w/wyse60-vb
	OLD_FILES+=usr/share/terminfo/w/wyse60-w
	OLD_FILES+=usr/share/terminfo/w/wyse60-wvb
	OLD_FILES+=usr/share/terminfo/w/wyse75
	OLD_FILES+=usr/share/terminfo/w/wyse75-mc
	OLD_FILES+=usr/share/terminfo/w/wyse75-vb
	OLD_FILES+=usr/share/terminfo/w/wyse75-w
	OLD_FILES+=usr/share/terminfo/w/wyse75-wvb
	OLD_FILES+=usr/share/terminfo/w/wyse75ap
	OLD_FILES+=usr/share/terminfo/w/wyse85
	OLD_FILES+=usr/share/terminfo/w/wyse85-8bit
	OLD_FILES+=usr/share/terminfo/w/wyse85-vb
	OLD_FILES+=usr/share/terminfo/w/wyse85-w
	OLD_FILES+=usr/share/terminfo/w/wyse85-wvb
	OLD_FILES+=usr/share/terminfo/w/wyse99gt
	OLD_FILES+=usr/share/terminfo/w/wyse99gt-25
	OLD_FILES+=usr/share/terminfo/w/wyse99gt-25-w
	OLD_FILES+=usr/share/terminfo/w/wyse99gt-vb
	OLD_FILES+=usr/share/terminfo/w/wyse99gt-w
	OLD_FILES+=usr/share/terminfo/w/wyse99gt-wvb
	OLD_DIRS+=usr/share/terminfo/w/
	OLD_FILES+=usr/share/terminfo/x/x10term
	OLD_FILES+=usr/share/terminfo/x/x1700
	OLD_FILES+=usr/share/terminfo/x/x1700-lm
	OLD_FILES+=usr/share/terminfo/x/x1720
	OLD_FILES+=usr/share/terminfo/x/x1750
	OLD_FILES+=usr/share/terminfo/x/x68k
	OLD_FILES+=usr/share/terminfo/x/x68k-ite
	OLD_FILES+=usr/share/terminfo/x/x820
	OLD_FILES+=usr/share/terminfo/x/xdku
	OLD_FILES+=usr/share/terminfo/x/xenix
	OLD_FILES+=usr/share/terminfo/x/xerox
	OLD_FILES+=usr/share/terminfo/x/xerox-lm
	OLD_FILES+=usr/share/terminfo/x/xerox1720
	OLD_FILES+=usr/share/terminfo/x/xerox820
	OLD_FILES+=usr/share/terminfo/x/xfce
	OLD_FILES+=usr/share/terminfo/x/xiterm
	OLD_FILES+=usr/share/terminfo/x/xl83
	OLD_FILES+=usr/share/terminfo/x/xnuppc
	OLD_FILES+=usr/share/terminfo/x/xnuppc+100x37
	OLD_FILES+=usr/share/terminfo/x/xnuppc+112x37
	OLD_FILES+=usr/share/terminfo/x/xnuppc+128x40
	OLD_FILES+=usr/share/terminfo/x/xnuppc+128x48
	OLD_FILES+=usr/share/terminfo/x/xnuppc+144x48
	OLD_FILES+=usr/share/terminfo/x/xnuppc+160x64
	OLD_FILES+=usr/share/terminfo/x/xnuppc+200x64
	OLD_FILES+=usr/share/terminfo/x/xnuppc+200x75
	OLD_FILES+=usr/share/terminfo/x/xnuppc+256x96
	OLD_FILES+=usr/share/terminfo/x/xnuppc+80x25
	OLD_FILES+=usr/share/terminfo/x/xnuppc+80x30
	OLD_FILES+=usr/share/terminfo/x/xnuppc+90x30
	OLD_FILES+=usr/share/terminfo/x/xnuppc+b
	OLD_FILES+=usr/share/terminfo/x/xnuppc+basic
	OLD_FILES+=usr/share/terminfo/x/xnuppc+c
	OLD_FILES+=usr/share/terminfo/x/xnuppc+f
	OLD_FILES+=usr/share/terminfo/x/xnuppc+f2
	OLD_FILES+=usr/share/terminfo/x/xnuppc-100x37
	OLD_FILES+=usr/share/terminfo/x/xnuppc-100x37-m
	OLD_FILES+=usr/share/terminfo/x/xnuppc-112x37
	OLD_FILES+=usr/share/terminfo/x/xnuppc-112x37-m
	OLD_FILES+=usr/share/terminfo/x/xnuppc-128x40
	OLD_FILES+=usr/share/terminfo/x/xnuppc-128x40-m
	OLD_FILES+=usr/share/terminfo/x/xnuppc-128x48
	OLD_FILES+=usr/share/terminfo/x/xnuppc-128x48-m
	OLD_FILES+=usr/share/terminfo/x/xnuppc-144x48
	OLD_FILES+=usr/share/terminfo/x/xnuppc-144x48-m
	OLD_FILES+=usr/share/terminfo/x/xnuppc-160x64
	OLD_FILES+=usr/share/terminfo/x/xnuppc-160x64-m
	OLD_FILES+=usr/share/terminfo/x/xnuppc-200x64
	OLD_FILES+=usr/share/terminfo/x/xnuppc-200x64-m
	OLD_FILES+=usr/share/terminfo/x/xnuppc-200x75
	OLD_FILES+=usr/share/terminfo/x/xnuppc-200x75-m
	OLD_FILES+=usr/share/terminfo/x/xnuppc-256x96
	OLD_FILES+=usr/share/terminfo/x/xnuppc-256x96-m
	OLD_FILES+=usr/share/terminfo/x/xnuppc-80x25
	OLD_FILES+=usr/share/terminfo/x/xnuppc-80x25-m
	OLD_FILES+=usr/share/terminfo/x/xnuppc-80x30
	OLD_FILES+=usr/share/terminfo/x/xnuppc-80x30-m
	OLD_FILES+=usr/share/terminfo/x/xnuppc-90x30
	OLD_FILES+=usr/share/terminfo/x/xnuppc-90x30-m
	OLD_FILES+=usr/share/terminfo/x/xnuppc-b
	OLD_FILES+=usr/share/terminfo/x/xnuppc-f
	OLD_FILES+=usr/share/terminfo/x/xnuppc-f2
	OLD_FILES+=usr/share/terminfo/x/xnuppc-m
	OLD_FILES+=usr/share/terminfo/x/xnuppc-m-b
	OLD_FILES+=usr/share/terminfo/x/xnuppc-m-f
	OLD_FILES+=usr/share/terminfo/x/xnuppc-m-f2
	OLD_FILES+=usr/share/terminfo/x/xtalk
	OLD_FILES+=usr/share/terminfo/x/xterm
	OLD_FILES+=usr/share/terminfo/x/xterm+256color
	OLD_FILES+=usr/share/terminfo/x/xterm+256color2
	OLD_FILES+=usr/share/terminfo/x/xterm+256setaf
	OLD_FILES+=usr/share/terminfo/x/xterm+88color
	OLD_FILES+=usr/share/terminfo/x/xterm+88color2
	OLD_FILES+=usr/share/terminfo/x/xterm+alt+title
	OLD_FILES+=usr/share/terminfo/x/xterm+alt1049
	OLD_FILES+=usr/share/terminfo/x/xterm+app
	OLD_FILES+=usr/share/terminfo/x/xterm+direct
	OLD_FILES+=usr/share/terminfo/x/xterm+direct16
	OLD_FILES+=usr/share/terminfo/x/xterm+direct2
	OLD_FILES+=usr/share/terminfo/x/xterm+direct256
	OLD_FILES+=usr/share/terminfo/x/xterm+edit
	OLD_FILES+=usr/share/terminfo/x/xterm+indirect
	OLD_FILES+=usr/share/terminfo/x/xterm+kbs
	OLD_FILES+=usr/share/terminfo/x/xterm+keypad
	OLD_FILES+=usr/share/terminfo/x/xterm+meta
	OLD_FILES+=usr/share/terminfo/x/xterm+noalt
	OLD_FILES+=usr/share/terminfo/x/xterm+noapp
	OLD_FILES+=usr/share/terminfo/x/xterm+nofkeys
	OLD_FILES+=usr/share/terminfo/x/xterm+osc104
	OLD_FILES+=usr/share/terminfo/x/xterm+pc+edit
	OLD_FILES+=usr/share/terminfo/x/xterm+pcc0
	OLD_FILES+=usr/share/terminfo/x/xterm+pcc1
	OLD_FILES+=usr/share/terminfo/x/xterm+pcc2
	OLD_FILES+=usr/share/terminfo/x/xterm+pcc3
	OLD_FILES+=usr/share/terminfo/x/xterm+pce2
	OLD_FILES+=usr/share/terminfo/x/xterm+pcf0
	OLD_FILES+=usr/share/terminfo/x/xterm+pcf2
	OLD_FILES+=usr/share/terminfo/x/xterm+pcfkeys
	OLD_FILES+=usr/share/terminfo/x/xterm+r6f2
	OLD_FILES+=usr/share/terminfo/x/xterm+sl
	OLD_FILES+=usr/share/terminfo/x/xterm+sl-twm
	OLD_FILES+=usr/share/terminfo/x/xterm+sm+1002
	OLD_FILES+=usr/share/terminfo/x/xterm+sm+1003
	OLD_FILES+=usr/share/terminfo/x/xterm+sm+1005
	OLD_FILES+=usr/share/terminfo/x/xterm+sm+1006
	OLD_FILES+=usr/share/terminfo/x/xterm+titlestack
	OLD_FILES+=usr/share/terminfo/x/xterm+tmux
	OLD_FILES+=usr/share/terminfo/x/xterm+vt+edit
	OLD_FILES+=usr/share/terminfo/x/xterm+x10mouse
	OLD_FILES+=usr/share/terminfo/x/xterm+x11hilite
	OLD_FILES+=usr/share/terminfo/x/xterm+x11mouse
	OLD_FILES+=usr/share/terminfo/x/xterm-1002
	OLD_FILES+=usr/share/terminfo/x/xterm-1003
	OLD_FILES+=usr/share/terminfo/x/xterm-1005
	OLD_FILES+=usr/share/terminfo/x/xterm-1006
	OLD_FILES+=usr/share/terminfo/x/xterm-16color
	OLD_FILES+=usr/share/terminfo/x/xterm-24
	OLD_FILES+=usr/share/terminfo/x/xterm-256color
	OLD_FILES+=usr/share/terminfo/x/xterm-88color
	OLD_FILES+=usr/share/terminfo/x/xterm-8bit
	OLD_FILES+=usr/share/terminfo/x/xterm-basic
	OLD_FILES+=usr/share/terminfo/x/xterm-bold
	OLD_FILES+=usr/share/terminfo/x/xterm-color
	OLD_FILES+=usr/share/terminfo/x/xterm-direct
	OLD_FILES+=usr/share/terminfo/x/xterm-direct16
	OLD_FILES+=usr/share/terminfo/x/xterm-direct2
	OLD_FILES+=usr/share/terminfo/x/xterm-direct256
	OLD_FILES+=usr/share/terminfo/x/xterm-hp
	OLD_FILES+=usr/share/terminfo/x/xterm-mono
	OLD_FILES+=usr/share/terminfo/x/xterm-new
	OLD_FILES+=usr/share/terminfo/x/xterm-nic
	OLD_FILES+=usr/share/terminfo/x/xterm-noapp
	OLD_FILES+=usr/share/terminfo/x/xterm-old
	OLD_FILES+=usr/share/terminfo/x/xterm-pcolor
	OLD_FILES+=usr/share/terminfo/x/xterm-r5
	OLD_FILES+=usr/share/terminfo/x/xterm-r6
	OLD_FILES+=usr/share/terminfo/x/xterm-sco
	OLD_FILES+=usr/share/terminfo/x/xterm-sun
	OLD_FILES+=usr/share/terminfo/x/xterm-utf8
	OLD_FILES+=usr/share/terminfo/x/xterm-vt220
	OLD_FILES+=usr/share/terminfo/x/xterm-vt52
	OLD_FILES+=usr/share/terminfo/x/xterm-x10mouse
	OLD_FILES+=usr/share/terminfo/x/xterm-x11hilite
	OLD_FILES+=usr/share/terminfo/x/xterm-x11mouse
	OLD_FILES+=usr/share/terminfo/x/xterm-xf86-v32
	OLD_FILES+=usr/share/terminfo/x/xterm-xf86-v33
	OLD_FILES+=usr/share/terminfo/x/xterm-xf86-v333
	OLD_FILES+=usr/share/terminfo/x/xterm-xf86-v40
	OLD_FILES+=usr/share/terminfo/x/xterm-xf86-v43
	OLD_FILES+=usr/share/terminfo/x/xterm-xf86-v44
	OLD_FILES+=usr/share/terminfo/x/xterm-xfree86
	OLD_FILES+=usr/share/terminfo/x/xterm-xi
	OLD_FILES+=usr/share/terminfo/x/xterm.js
	OLD_FILES+=usr/share/terminfo/x/xterm1
	OLD_FILES+=usr/share/terminfo/x/xtermc
	OLD_FILES+=usr/share/terminfo/x/xtermm
	OLD_FILES+=usr/share/terminfo/x/xterms
	OLD_FILES+=usr/share/terminfo/x/xterms-sun
	OLD_FILES+=usr/share/terminfo/x/xwsh
	OLD_DIRS+=usr/share/terminfo/x/
	OLD_FILES+=usr/share/terminfo/z/z-100
	OLD_FILES+=usr/share/terminfo/z/z-100bw
	OLD_FILES+=usr/share/terminfo/z/z100
	OLD_FILES+=usr/share/terminfo/z/z100bw
	OLD_FILES+=usr/share/terminfo/z/z110
	OLD_FILES+=usr/share/terminfo/z/z110bw
	OLD_FILES+=usr/share/terminfo/z/z19
	OLD_FILES+=usr/share/terminfo/z/z29
	OLD_FILES+=usr/share/terminfo/z/z29a
	OLD_FILES+=usr/share/terminfo/z/z29a-kc-bc
	OLD_FILES+=usr/share/terminfo/z/z29a-kc-uc
	OLD_FILES+=usr/share/terminfo/z/z29a-nkc-bc
	OLD_FILES+=usr/share/terminfo/z/z29a-nkc-uc
	OLD_FILES+=usr/share/terminfo/z/z29b
	OLD_FILES+=usr/share/terminfo/z/z30
	OLD_FILES+=usr/share/terminfo/z/z340
	OLD_FILES+=usr/share/terminfo/z/z340-nam
	OLD_FILES+=usr/share/terminfo/z/z39-a
	OLD_FILES+=usr/share/terminfo/z/z39a
	OLD_FILES+=usr/share/terminfo/z/z50
	OLD_FILES+=usr/share/terminfo/z/z8001
	OLD_FILES+=usr/share/terminfo/z/zen30
	OLD_FILES+=usr/share/terminfo/z/zen50
	OLD_FILES+=usr/share/terminfo/z/zen8001
	OLD_FILES+=usr/share/terminfo/z/zenith
	OLD_FILES+=usr/share/terminfo/z/zenith29
	OLD_FILES+=usr/share/terminfo/z/zenith39-a
	OLD_FILES+=usr/share/terminfo/z/zenith39-ansi
	OLD_FILES+=usr/share/terminfo/z/zt-1
	OLD_FILES+=usr/share/terminfo/z/ztx
	OLD_FILES+=usr/share/terminfo/z/ztx-1-a
	OLD_FILES+=usr/share/terminfo/z/ztx11
	OLD_DIRS+=usr/share/terminfo/z/
	OLD_DIRS+=usr/share/terminfo/

	# 20210316: remove obsolete NFS headers
	OLD_FILES+=usr/include/nfs/nfs_common.h
	OLD_FILES+=usr/include/nfsclient/nfsm_subs.h
	OLD_FILES+=usr/include/nfsclient/nlminfo.h
	OLD_FILES+=usr/include/nfsserver/nfs_fha_old.h
	OLD_FILES+=usr/include/nfsserver/nfsm_subs.h
	OLD_FILES+=usr/include/nfsserver/nfsrvcache.h

	# 20210315: Remove kernel-only crypto headers from /usr/include
	OLD_FILES+=usr/include/crypto/_cryptodev.h
	OLD_FILES+=usr/include/crypto/cbc_mac.h
	OLD_FILES+=usr/include/crypto/deflate.h
	OLD_FILES+=usr/include/crypto/gfmult.h
	OLD_FILES+=usr/include/crypto/gmac.h
	OLD_FILES+=usr/include/crypto/rijndael.h
	OLD_FILES+=usr/include/crypto/rmd160.h
	OLD_FILES+=usr/include/crypto/xform.h
	OLD_FILES+=usr/include/crypto/xform_auth.h
	OLD_FILES+=usr/include/crypto/xform_comp.h
	OLD_FILES+=usr/include/crypto/xform_enc.h

	# 20210315: if_wg(4) removed
	OLD_FILES+=usr/share/man/man4/if_wg.4.gz
	OLD_FILES+=usr/share/man/man4/wg.4.gz

	# 20210305: removed Poly1305_* symbols
	OLD_FILES+=usr/include/crypto/xform_poly1305.h

	# 20210302: fmtree removed
	OLD_FILES+=usr/sbin/fmtree
	OLD_FILES+=usr/share/man/man8/fmtree.8.gz

	# 20210201: bump shared libraries which link against ncurses
	OLD_LIBS+=lib/libedit.so.7
	OLD_LIBS+=usr/lib/libdialog.so.8
	OLD_LIBS+=usr/lib/libdpv.so.1
	OLD_LIBS+=usr/lib/libform.so.5
	OLD_LIBS+=usr/lib/libformw.so.5
	OLD_LIBS+=usr/lib/libmenu.so.5
	OLD_LIBS+=usr/lib/libmenuw.so.5
	OLD_LIBS+=usr/lib/libpanel.so.5
	OLD_LIBS+=usr/lib/libpanelw.so.5

	# 20210125: ndis driver support removed
	OLD_FILES+=usr/sbin/ndis_events
	OLD_FILES+=usr/sbin/ndiscvt
	OLD_FILES+=usr/sbin/ndisgen
	OLD_FILES+=usr/share/man/man4/ndis.4.gz
	OLD_FILES+=usr/share/man/man4/if_ndis.4.gz
	OLD_FILES+=usr/share/man/man8/ndis_events.8.gz
	OLD_FILES+=usr/share/man/man8/ndiscvt.8.gz
	OLD_FILES+=usr/share/man/man8/ndisgen.8.gz
	OLD_FILES+=usr/share/misc/windrv_stub.c

	# 20210116: if_wl_wavelan.h removed
	.if ${TARGET_ARCH} == "i386"
	OLD_FILES+=usr/include/machine/if_wl_wavelan.h
	.endif

	# 20210108: retire cmx, ng_bt3c, wi drivers
	OLD_FILES+=usr/include/dev/wi/if_wireg.h
	OLD_FILES+=usr/include/dev/wi/if_wavelan_ieee.h
	OLD_FILES+=usr/include/dev/wi/if_wivar.h
	OLD_FILES+=usr/sbin/bt3cfw
	OLD_FILES+=usr/share/man/man4/cmw.4.gz
	OLD_FILES+=usr/share/man/man4/if_wi.4.gz
	OLD_FILES+=usr/share/man/man4/ng_bt3c.4.gz
	OLD_FILES+=usr/share/man/man4/wi.4.gz
	OLD_FILES+=usr/share/man/man8/bt3cfw.8.gz

	# 20210107: retire a.out support
	OLD_DIRS+=usr/lib/aout
	OLD_DIRS+=usr/lib/compat/aout

	# 20210107: remove cmx(4)
	OLD_FILES+=usr/share/man/man4/cmx.4.gz

	# 20210105: remove non widechar version of ncurses
	OLD_LIBS+=lib/libncurses.so.9

	# 20210103: new clang import which bumps version from 11.0.0 to 11.0.1.
	OLD_FILES+=usr/lib/clang/11.0.0/include/cuda_wrappers/algorithm
	OLD_FILES+=usr/lib/clang/11.0.0/include/cuda_wrappers/complex
	OLD_FILES+=usr/lib/clang/11.0.0/include/cuda_wrappers/new
	OLD_DIRS+=usr/lib/clang/11.0.0/include/cuda_wrappers
	OLD_FILES+=usr/lib/clang/11.0.0/include/fuzzer/FuzzedDataProvider.h
	OLD_DIRS+=usr/lib/clang/11.0.0/include/fuzzer
	OLD_FILES+=usr/lib/clang/11.0.0/include/openmp_wrappers/__clang_openmp_device_functions.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/openmp_wrappers/cmath
	OLD_FILES+=usr/lib/clang/11.0.0/include/openmp_wrappers/complex
	OLD_FILES+=usr/lib/clang/11.0.0/include/openmp_wrappers/complex.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/openmp_wrappers/math.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/openmp_wrappers/new
	OLD_DIRS+=usr/lib/clang/11.0.0/include/openmp_wrappers
	OLD_FILES+=usr/lib/clang/11.0.0/include/ppc_wrappers/emmintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/ppc_wrappers/mm_malloc.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/ppc_wrappers/mmintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/ppc_wrappers/pmmintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/ppc_wrappers/smmintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/ppc_wrappers/tmmintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/ppc_wrappers/xmmintrin.h
	OLD_DIRS+=usr/lib/clang/11.0.0/include/ppc_wrappers
	OLD_FILES+=usr/lib/clang/11.0.0/include/profile/InstrProfData.inc
	OLD_DIRS+=usr/lib/clang/11.0.0/include/profile
	OLD_FILES+=usr/lib/clang/11.0.0/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/sanitizer/hwasan_interface.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/sanitizer/netbsd_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/sanitizer/scudo_interface.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/sanitizer/tsan_interface.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/sanitizer/tsan_interface_atomic.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/sanitizer/ubsan_interface.h
	OLD_DIRS+=usr/lib/clang/11.0.0/include/sanitizer
	OLD_FILES+=usr/lib/clang/11.0.0/include/xray/xray_interface.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/xray/xray_log_interface.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/xray/xray_records.h
	OLD_DIRS+=usr/lib/clang/11.0.0/include/xray
	OLD_FILES+=usr/lib/clang/11.0.0/include/__clang_cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/__clang_cuda_cmath.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/__clang_cuda_complex_builtins.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/__clang_cuda_device_functions.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/__clang_cuda_intrinsics.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/__clang_cuda_libdevice_declares.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/__clang_cuda_math.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/__clang_cuda_math_forward_declares.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/__clang_cuda_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/__clang_hip_libdevice_declares.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/__clang_hip_math.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/__clang_hip_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/altivec.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/amxintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/arm64intr.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/arm_bf16.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/arm_cde.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/arm_cmse.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/arm_fp16.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/arm_mve.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/arm_sve.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/armintr.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512bf16intrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512bitalgintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512ifmaintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512ifmavlintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512pfintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512vbmi2intrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512vbmiintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512vbmivlintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512vlbf16intrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512vlbitalgintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512vlcdintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512vlvbmi2intrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512vlvnniintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512vlvp2intersectintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512vnniintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512vp2intersectintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512vpopcntdqintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avx512vpopcntdqvlintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/cet.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/cetintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/cldemoteintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/clflushoptintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/clwbintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/clzerointrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/cpuid.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/enqcmdintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/gfniintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/immintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/invpcidintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/lwpintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/module.modulemap
	OLD_FILES+=usr/lib/clang/11.0.0/include/movdirintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/msa.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/mwaitxintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/opencl-c-base.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/opencl-c.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/pconfigintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/pkuintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/ptwriteintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/serializeintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/sgxintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/tsxldtrkintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/vadefs.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/vaesintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/vpclmulqdqintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/waitpkgintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/wasm_simd128.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/wbnoinvdintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/xsavecintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/xsaveintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/xsaveoptintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/xsavesintrin.h
	OLD_FILES+=usr/lib/clang/11.0.0/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/11.0.0/include
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan-aarch64.so
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan-arm.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan-arm.so
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan-armhf.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan-armhf.so
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan-i386.so
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan-preinit-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan-preinit-arm.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan-preinit-armhf.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan-x86_64.so
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan_cxx-arm.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan_cxx-armhf.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.cfi-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.cfi-arm.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.cfi-armhf.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.cfi-i386.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.cfi-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.cfi_diag-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.cfi_diag-arm.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.cfi_diag-armhf.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.cfi_diag-i386.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.cfi_diag-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.dd-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.dd-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.fuzzer-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.fuzzer-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.fuzzer_no_main-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.fuzzer_no_main-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.msan-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.msan-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.msan_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.msan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.profile-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.profile-armhf.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.profile-powerpc.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.profile-powerpc64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.profile-powerpc64le.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.safestack-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.stats-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.stats-arm.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.stats-armhf.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.stats-i386.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.stats-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.stats_client-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.stats_client-arm.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.stats_client-armhf.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.stats_client-i386.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.stats_client-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.tsan-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.tsan-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.tsan_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.tsan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.ubsan_minimal-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.ubsan_minimal-arm.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.ubsan_minimal-armhf.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.ubsan_minimal-i386.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.ubsan_minimal-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.ubsan_standalone-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.ubsan_standalone-arm.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.ubsan_standalone-armhf.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-arm.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-armhf.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.xray-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.xray-arm.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.xray-armhf.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.xray-basic-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.xray-basic-arm.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.xray-basic-armhf.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.xray-basic-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.xray-fdr-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.xray-fdr-arm.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.xray-fdr-armhf.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.xray-fdr-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.xray-profiling-aarch64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.xray-profiling-arm.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.xray-profiling-armhf.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.xray-profiling-x86_64.a
	OLD_FILES+=usr/lib/clang/11.0.0/lib/freebsd/libclang_rt.xray-x86_64.a
	OLD_DIRS+=usr/lib/clang/11.0.0/lib/freebsd
	OLD_DIRS+=usr/lib/clang/11.0.0/lib
	OLD_DIRS+=usr/lib/clang/11.0.0

	# 20201225: PMC for Xscale removed
	OLD_FILES+=usr/share/man/man3/pmc.xscale.3.gz

	# 20201225: libregex removed
	OLD_FILES+=usr/include/gnu/posix/regex.h
	OLD_DIRS+=usr/include/gnu/posix
	OLD_FILES+=usr/include/gnu/regex.h
	OLD_DIRS+=usr/include/gnu
	OLD_FILES+=usr/include/gnuregex.h
	OLD_FILES+=usr/lib/libgnuregex.a
	OLD_FILES+=usr/lib/libgnuregex.so
	OLD_LIBS+=usr/lib/libgnuregex.so.5
	OLD_FILES+=usr/lib/libgnuregex_p.a
	OLD_FILES+=usr/lib32/libgnuregex.a
	OLD_FILES+=usr/lib32/libgnuregex.so
	OLD_LIBS+=usr/lib32/libgnuregex.so.5
	OLD_FILES+=usr/lib32/libgnuregex_p.a

	# 20201225: gnugrep removed
	OLD_FILES+=usr/bin/bsdgrep
	OLD_FILES+=usr/bin/gnugrep
	OLD_FILES+=usr/share/man/man1/bsdgrep.1.gz
	OLD_FILES+=usr/share/man/man1/gnugrep.1.gz

	# 20201224: mk48txx(4) removed
	OLD_FILES+=usr/share/man/man4/mk48txx.4.gz

	# 20201215: in-tree gdb removed
	OLD_FILES+=usr/libexec/gdb
	OLD_FILES+=usr/libexec/kgdb

	# 20201211: hme(4) removed
	OLD_FILES+=usr/share/man/man4/hme.4.gz
	OLD_FILES+=usr/share/man/man4/if_hme.4.gz

	# 20201124: ping6(8) was merged into ping(8)
	OLD_FILES+=usr/lib/debug/sbin/ping6.debug
	OLD_FILES+=usr/share/man/man8/ping6.8.gz
	OLD_FILES+=usr/tests/sbin/ping6/Kyuafile
	OLD_FILES+=usr/tests/sbin/ping6/ping6_c1_s8_t1.out
	OLD_FILES+=usr/tests/sbin/ping6/ping6_test
	OLD_DIRS+=usr/tests/sbin/ping6

	# 20201025: Remove cal data files
	OLD_FILES+=usr/share/calendar/calendar.all
	OLD_FILES+=usr/share/calendar/calendar.australia
	OLD_FILES+=usr/share/calendar/calendar.birthday
	OLD_FILES+=usr/share/calendar/calendar.brazilian
	OLD_FILES+=usr/share/calendar/calendar.christian
	OLD_FILES+=usr/share/calendar/calendar.computer
	OLD_FILES+=usr/share/calendar/calendar.croatian
	OLD_FILES+=usr/share/calendar/calendar.dutch
	OLD_FILES+=usr/share/calendar/calendar.french
	OLD_FILES+=usr/share/calendar/calendar.german
	OLD_FILES+=usr/share/calendar/calendar.history
	OLD_FILES+=usr/share/calendar/calendar.holiday
	OLD_FILES+=usr/share/calendar/calendar.hungarian
	OLD_FILES+=usr/share/calendar/calendar.judaic
	OLD_FILES+=usr/share/calendar/calendar.lotr
	OLD_FILES+=usr/share/calendar/calendar.music
	OLD_FILES+=usr/share/calendar/calendar.newzealand
	OLD_FILES+=usr/share/calendar/calendar.russian
	OLD_FILES+=usr/share/calendar/calendar.southafrica
	OLD_FILES+=usr/share/calendar/calendar.ukrainian
	OLD_FILES+=usr/share/calendar/calendar.usholiday
	OLD_FILES+=usr/share/calendar/calendar.world
	OLD_FILES+=usr/share/calendar/de_AT.ISO_8859-15/calendar.feiertag
	OLD_FILES+=usr/share/calendar/de_DE.ISO8859-1/calendar.all
	OLD_FILES+=usr/share/calendar/de_DE.ISO8859-1/calendar.feiertag
	OLD_FILES+=usr/share/calendar/de_DE.ISO8859-1/calendar.geschichte
	OLD_FILES+=usr/share/calendar/de_DE.ISO8859-1/calendar.kirche
	OLD_FILES+=usr/share/calendar/de_DE.ISO8859-1/calendar.literatur
	OLD_FILES+=usr/share/calendar/de_DE.ISO8859-1/calendar.musik
	OLD_FILES+=usr/share/calendar/de_DE.ISO8859-1/calendar.wissenschaft
	OLD_FILES+=usr/share/calendar/fr_FR.ISO8859-1/calendar.all
	OLD_FILES+=usr/share/calendar/fr_FR.ISO8859-1/calendar.fetes
	OLD_FILES+=usr/share/calendar/fr_FR.ISO8859-1/calendar.french
	OLD_FILES+=usr/share/calendar/fr_FR.ISO8859-1/calendar.jferies
	OLD_FILES+=usr/share/calendar/fr_FR.ISO8859-1/calendar.proverbes
	OLD_FILES+=usr/share/calendar/hr_HR.ISO8859-2/calendar.all
	OLD_FILES+=usr/share/calendar/hr_HR.ISO8859-2/calendar.praznici
	OLD_FILES+=usr/share/calendar/hu_HU.ISO8859-2/calendar.all
	OLD_FILES+=usr/share/calendar/hu_HU.ISO8859-2/calendar.nevnapok
	OLD_FILES+=usr/share/calendar/hu_HU.ISO8859-2/calendar.unnepek
	OLD_FILES+=usr/share/calendar/pt_BR.ISO8859-1/calendar.all
	OLD_FILES+=usr/share/calendar/pt_BR.ISO8859-1/calendar.commemorative
	OLD_FILES+=usr/share/calendar/pt_BR.ISO8859-1/calendar.holidays
	OLD_FILES+=usr/share/calendar/pt_BR.ISO8859-1/calendar.mcommemorative
	OLD_FILES+=usr/share/calendar/pt_BR.UTF-8/calendar.all
	OLD_FILES+=usr/share/calendar/pt_BR.UTF-8/calendar.commemorative
	OLD_FILES+=usr/share/calendar/pt_BR.UTF-8/calendar.holidays
	OLD_FILES+=usr/share/calendar/pt_BR.UTF-8/calendar.mcommemorative
	OLD_FILES+=usr/share/calendar/ru_RU.KOI8-R/calendar.all
	OLD_FILES+=usr/share/calendar/ru_RU.KOI8-R/calendar.common
	OLD_FILES+=usr/share/calendar/ru_RU.KOI8-R/calendar.holiday
	OLD_FILES+=usr/share/calendar/ru_RU.KOI8-R/calendar.military
	OLD_FILES+=usr/share/calendar/ru_RU.KOI8-R/calendar.orthodox
	OLD_FILES+=usr/share/calendar/ru_RU.KOI8-R/calendar.pagan
	OLD_FILES+=usr/share/calendar/ru_RU.UTF-8/calendar.all
	OLD_FILES+=usr/share/calendar/ru_RU.UTF-8/calendar.common
	OLD_FILES+=usr/share/calendar/ru_RU.UTF-8/calendar.holiday
	OLD_FILES+=usr/share/calendar/ru_RU.UTF-8/calendar.military
	OLD_FILES+=usr/share/calendar/ru_RU.UTF-8/calendar.orthodox
	OLD_FILES+=usr/share/calendar/ru_RU.UTF-8/calendar.pagan
	OLD_FILES+=usr/share/calendar/uk_UA.KOI8-U/calendar.all
	OLD_FILES+=usr/share/calendar/uk_UA.KOI8-U/calendar.holiday
	OLD_FILES+=usr/share/calendar/uk_UA.KOI8-U/calendar.misc
	OLD_FILES+=usr/share/calendar/uk_UA.KOI8-U/calendar.orthodox

	# 20201004: logo files renamed to type-agnostic gfx-*.lua
	OLD_FILES+=boot/lua/logo-beastie.lua
	OLD_FILES+=boot/lua/logo-beastiebw.lua
	OLD_FILES+=boot/lua/logo-fbsdbw.lua
	OLD_FILES+=boot/lua/logo-orb.lua
	OLD_FILES+=boot/lua/logo-orbbw.lua

	# 20200825: merged OpenZFS support
	OLD_LIBS+=lib/libzfs.so.3
	OLD_LIBS+=usr/lib32/libzfs.so.3
	OLD_FILES+=usr/share/man/man1/zstreamdump.1.gz
	OLD_FILES+=usr/share/man/man7/zpool-features.7.gz

	# 20200923: memfd_test moved to /usr/tests/sys/posixshm
	OLD_FILES+=usr/tests/sys/kern/memfd_test

	# 20200910: remove vm_map_create(9) to sync with the code
	OLD_FILES+=usr/share/man/man9/vm_map_create.9.gz

	# 20200820: Removal of the ufm driver.
	OLD_FILES+=usr/share/man/man4/ufm.4.gz

	# 20200816: new clang import which bumps version from 10.0.1 to 11.0.0.
	OLD_FILES+=usr/lib/clang/10.0.1/include/cuda_wrappers/algorithm
	OLD_FILES+=usr/lib/clang/10.0.1/include/cuda_wrappers/complex
	OLD_FILES+=usr/lib/clang/10.0.1/include/cuda_wrappers/new
	OLD_DIRS+=usr/lib/clang/10.0.1/include/cuda_wrappers
	OLD_FILES+=usr/lib/clang/10.0.1/include/fuzzer/FuzzedDataProvider.h
	OLD_DIRS+=usr/lib/clang/10.0.1/include/fuzzer
	OLD_FILES+=usr/lib/clang/10.0.1/include/openmp_wrappers/__clang_openmp_math.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/openmp_wrappers/__clang_openmp_math_declares.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/openmp_wrappers/cmath
	OLD_FILES+=usr/lib/clang/10.0.1/include/openmp_wrappers/math.h
	OLD_DIRS+=usr/lib/clang/10.0.1/include/openmp_wrappers
	OLD_FILES+=usr/lib/clang/10.0.1/include/ppc_wrappers/emmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/ppc_wrappers/mm_malloc.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/ppc_wrappers/mmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/ppc_wrappers/pmmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/ppc_wrappers/smmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/ppc_wrappers/tmmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/ppc_wrappers/xmmintrin.h
	OLD_DIRS+=usr/lib/clang/10.0.1/include/ppc_wrappers
	OLD_FILES+=usr/lib/clang/10.0.1/include/profile/InstrProfData.inc
	OLD_DIRS+=usr/lib/clang/10.0.1/include/profile
	OLD_FILES+=usr/lib/clang/10.0.1/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/sanitizer/hwasan_interface.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/sanitizer/netbsd_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/sanitizer/scudo_interface.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/sanitizer/tsan_interface.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/sanitizer/tsan_interface_atomic.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/sanitizer/ubsan_interface.h
	OLD_DIRS+=usr/lib/clang/10.0.1/include/sanitizer
	OLD_FILES+=usr/lib/clang/10.0.1/include/xray/xray_interface.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/xray/xray_log_interface.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/xray/xray_records.h
	OLD_DIRS+=usr/lib/clang/10.0.1/include/xray
	OLD_FILES+=usr/lib/clang/10.0.1/include/__clang_cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/__clang_cuda_cmath.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/__clang_cuda_complex_builtins.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/__clang_cuda_device_functions.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/__clang_cuda_intrinsics.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/__clang_cuda_libdevice_declares.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/__clang_cuda_math_forward_declares.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/__clang_cuda_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/altivec.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/arm64intr.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/arm_cmse.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/arm_fp16.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/arm_mve.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/armintr.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512bf16intrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512bitalgintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512ifmaintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512ifmavlintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512pfintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512vbmi2intrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512vbmiintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512vbmivlintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512vlbf16intrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512vlbitalgintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512vlcdintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512vlvbmi2intrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512vlvnniintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512vlvp2intersectintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512vnniintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512vp2intersectintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512vpopcntdqintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avx512vpopcntdqvlintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/cetintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/cldemoteintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/clflushoptintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/clwbintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/clzerointrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/cpuid.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/enqcmdintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/gfniintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/immintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/invpcidintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/lwpintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/module.modulemap
	OLD_FILES+=usr/lib/clang/10.0.1/include/movdirintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/msa.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/mwaitxintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/opencl-c-base.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/opencl-c.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/pconfigintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/pkuintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/ptwriteintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/sgxintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/vadefs.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/vaesintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/vpclmulqdqintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/waitpkgintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/wbnoinvdintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/xsavecintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/xsaveintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/xsaveoptintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/xsavesintrin.h
	OLD_FILES+=usr/lib/clang/10.0.1/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/10.0.1/include
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-aarch64.so
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-arm.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-arm.so
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-armhf.so
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-i386.so
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-preinit-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-preinit-arm.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-preinit-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-x86_64.so
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan_cxx-arm.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan_cxx-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.cfi-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.cfi-arm.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.cfi-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.cfi-i386.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.cfi-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.cfi_diag-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.cfi_diag-arm.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.cfi_diag-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.cfi_diag-i386.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.cfi_diag-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.dd-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.dd-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.fuzzer-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.fuzzer-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.fuzzer_no_main-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.fuzzer_no_main-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.msan-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.msan-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.msan_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.msan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.profile-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.profile-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.profile-powerpc.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.profile-powerpc64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.safestack-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.stats-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.stats-arm.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.stats-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.stats-i386.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.stats-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.stats_client-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.stats_client-arm.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.stats_client-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.stats_client-i386.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.stats_client-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.tsan-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.tsan-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.tsan_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.tsan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.ubsan_minimal-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.ubsan_minimal-arm.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.ubsan_minimal-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.ubsan_minimal-i386.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.ubsan_minimal-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.ubsan_standalone-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.ubsan_standalone-arm.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.ubsan_standalone-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-arm.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.xray-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.xray-arm.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.xray-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.xray-basic-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.xray-basic-arm.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.xray-basic-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.xray-basic-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.xray-fdr-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.xray-fdr-arm.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.xray-fdr-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.xray-fdr-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.xray-profiling-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.xray-profiling-arm.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.xray-profiling-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.xray-profiling-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.xray-x86_64.a
	OLD_DIRS+=usr/lib/clang/10.0.1/lib/freebsd
	OLD_DIRS+=usr/lib/clang/10.0.1/lib
	OLD_DIRS+=usr/lib/clang/10.0.1

	# 20200803: remove free_domain(9) and uma_zfree_domain(9)
	OLD_FILES+=usr/share/man/man9/free_domain.9.gz
	OLD_FILES+=usr/share/man/man9/uma_zfree_domain.9.gz

	# 20200729: remove long expired serial drivers
	OLD_FILES+=usr/share/man/man4/cy.4.gz
	OLD_FILES+=usr/share/man/man4/rc.4.gz
	OLD_FILES+=usr/share/man/man4/rp.4.gz

	# 20200715: rework of devstat(9) man page
	OLD_FILES+=usr/share/man/man9/devstat_add_entry.9.gz

	# 20200714: update byacc to 20200330
	OLD_FILES+=usr/tests/usr.bin/yacc/btyacc_calc1.y
	OLD_FILES+=usr/tests/usr.bin/yacc/btyacc_demo.y
	OLD_FILES+=usr/tests/usr.bin/yacc/btyacc_destroy1.y
	OLD_FILES+=usr/tests/usr.bin/yacc/btyacc_destroy2.y
	OLD_FILES+=usr/tests/usr.bin/yacc/btyacc_destroy3.y
	OLD_FILES+=usr/tests/usr.bin/yacc/err_inherit1.y
	OLD_FILES+=usr/tests/usr.bin/yacc/err_inherit2.y
	OLD_FILES+=usr/tests/usr.bin/yacc/err_inherit3.y
	OLD_FILES+=usr/tests/usr.bin/yacc/err_inherit4.y
	OLD_FILES+=usr/tests/usr.bin/yacc/err_inherit5.y
	OLD_FILES+=usr/tests/usr.bin/yacc/inherit0.y
	OLD_FILES+=usr/tests/usr.bin/yacc/inherit1.y
	OLD_FILES+=usr/tests/usr.bin/yacc/inherit2.y

	# 20200706: update of sglist(9), r360574
	OLD_FILES+=usr/share/man/man9/sglist_append_ext_pgs.9.gz
	OLD_FILES+=usr/share/man/man9/sglist_append_mb_ext_pgs.9.gz
	OLD_FILES+=usr/share/man/man9/sglist_count_ext_pgs.9.gz
	OLD_FILES+=usr/share/man/man9/sglist_count_mb_ext_pgs.9.gz

	# 20200617: update opencsd to 0.14.2
	OLD_FILES+=usr/include/opencsd/etmv4/trc_pkt_elem_etmv4d.h

	# 20200606: retire binutils build infrastructure
	.if !defined(WITH_PORT_BASE_BINUTILS)
	OLD_FILES+=usr/bin/as
	OLD_FILES+=usr/bin/ld.bfd
	OLD_FILES+=usr/share/man/man1/as.1.gz
	OLD_FILES+=usr/share/man/man1/ld.bfd.1.gz
	OLD_FILES+=usr/share/man/man7/as.7.gz
	OLD_FILES+=usr/share/man/man7/ld.7.gz
	OLD_FILES+=usr/share/man/man7/ldint.7.gz
	OLD_FILES+=usr/share/man/man7/binutils.7.gz
	.endif
	OLD_FILES+=usr/libdata/ldscripts/armelf_fbsd.x
	OLD_FILES+=usr/libdata/ldscripts/armelf_fbsd.xbn
	OLD_FILES+=usr/libdata/ldscripts/armelf_fbsd.xc
	OLD_FILES+=usr/libdata/ldscripts/armelf_fbsd.xd
	OLD_FILES+=usr/libdata/ldscripts/armelf_fbsd.xdc
	OLD_FILES+=usr/libdata/ldscripts/armelf_fbsd.xdw
	OLD_FILES+=usr/libdata/ldscripts/armelf_fbsd.xn
	OLD_FILES+=usr/libdata/ldscripts/armelf_fbsd.xr
	OLD_FILES+=usr/libdata/ldscripts/armelf_fbsd.xs
	OLD_FILES+=usr/libdata/ldscripts/armelf_fbsd.xsc
	OLD_FILES+=usr/libdata/ldscripts/armelf_fbsd.xsw
	OLD_FILES+=usr/libdata/ldscripts/armelf_fbsd.xu
	OLD_FILES+=usr/libdata/ldscripts/armelf_fbsd.xw
	OLD_FILES+=usr/libdata/ldscripts/armelfb_fbsd.x
	OLD_FILES+=usr/libdata/ldscripts/armelfb_fbsd.xbn
	OLD_FILES+=usr/libdata/ldscripts/armelfb_fbsd.xc
	OLD_FILES+=usr/libdata/ldscripts/armelfb_fbsd.xd
	OLD_FILES+=usr/libdata/ldscripts/armelfb_fbsd.xdc
	OLD_FILES+=usr/libdata/ldscripts/armelfb_fbsd.xdw
	OLD_FILES+=usr/libdata/ldscripts/armelfb_fbsd.xn
	OLD_FILES+=usr/libdata/ldscripts/armelfb_fbsd.xr
	OLD_FILES+=usr/libdata/ldscripts/armelfb_fbsd.xs
	OLD_FILES+=usr/libdata/ldscripts/armelfb_fbsd.xsc
	OLD_FILES+=usr/libdata/ldscripts/armelfb_fbsd.xsw
	OLD_FILES+=usr/libdata/ldscripts/armelfb_fbsd.xu
	OLD_FILES+=usr/libdata/ldscripts/armelfb_fbsd.xw
	OLD_FILES+=usr/libdata/ldscripts/elf32_sparc.x
	OLD_FILES+=usr/libdata/ldscripts/elf32_sparc.xbn
	OLD_FILES+=usr/libdata/ldscripts/elf32_sparc.xc
	OLD_FILES+=usr/libdata/ldscripts/elf32_sparc.xd
	OLD_FILES+=usr/libdata/ldscripts/elf32_sparc.xdc
	OLD_FILES+=usr/libdata/ldscripts/elf32_sparc.xdw
	OLD_FILES+=usr/libdata/ldscripts/elf32_sparc.xn
	OLD_FILES+=usr/libdata/ldscripts/elf32_sparc.xr
	OLD_FILES+=usr/libdata/ldscripts/elf32_sparc.xs
	OLD_FILES+=usr/libdata/ldscripts/elf32_sparc.xsc
	OLD_FILES+=usr/libdata/ldscripts/elf32_sparc.xsw
	OLD_FILES+=usr/libdata/ldscripts/elf32_sparc.xu
	OLD_FILES+=usr/libdata/ldscripts/elf32_sparc.xw
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmip_fbsd.x
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmip_fbsd.xbn
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmip_fbsd.xc
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmip_fbsd.xd
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmip_fbsd.xdc
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmip_fbsd.xdw
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmip_fbsd.xn
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmip_fbsd.xr
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmip_fbsd.xs
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmip_fbsd.xsc
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmip_fbsd.xsw
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmip_fbsd.xu
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmip_fbsd.xw
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmipn32_fbsd.x
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmipn32_fbsd.xbn
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmipn32_fbsd.xc
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmipn32_fbsd.xd
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmipn32_fbsd.xdc
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmipn32_fbsd.xdw
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmipn32_fbsd.xn
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmipn32_fbsd.xr
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmipn32_fbsd.xs
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmipn32_fbsd.xsc
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmipn32_fbsd.xsw
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmipn32_fbsd.xu
	OLD_FILES+=usr/libdata/ldscripts/elf32btsmipn32_fbsd.xw
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmip_fbsd.x
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmip_fbsd.xbn
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmip_fbsd.xc
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmip_fbsd.xd
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmip_fbsd.xdc
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmip_fbsd.xdw
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmip_fbsd.xn
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmip_fbsd.xr
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmip_fbsd.xs
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmip_fbsd.xsc
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmip_fbsd.xsw
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmip_fbsd.xu
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmip_fbsd.xw
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmipn32_fbsd.x
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmipn32_fbsd.xbn
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmipn32_fbsd.xc
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmipn32_fbsd.xd
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmipn32_fbsd.xdc
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmipn32_fbsd.xdw
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmipn32_fbsd.xn
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmipn32_fbsd.xr
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmipn32_fbsd.xs
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmipn32_fbsd.xsc
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmipn32_fbsd.xsw
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmipn32_fbsd.xu
	OLD_FILES+=usr/libdata/ldscripts/elf32ltsmipn32_fbsd.xw
	OLD_FILES+=usr/libdata/ldscripts/elf32ppc_fbsd.x
	OLD_FILES+=usr/libdata/ldscripts/elf32ppc_fbsd.xbn
	OLD_FILES+=usr/libdata/ldscripts/elf32ppc_fbsd.xc
	OLD_FILES+=usr/libdata/ldscripts/elf32ppc_fbsd.xd
	OLD_FILES+=usr/libdata/ldscripts/elf32ppc_fbsd.xdc
	OLD_FILES+=usr/libdata/ldscripts/elf32ppc_fbsd.xdw
	OLD_FILES+=usr/libdata/ldscripts/elf32ppc_fbsd.xn
	OLD_FILES+=usr/libdata/ldscripts/elf32ppc_fbsd.xr
	OLD_FILES+=usr/libdata/ldscripts/elf32ppc_fbsd.xs
	OLD_FILES+=usr/libdata/ldscripts/elf32ppc_fbsd.xsc
	OLD_FILES+=usr/libdata/ldscripts/elf32ppc_fbsd.xsw
	OLD_FILES+=usr/libdata/ldscripts/elf32ppc_fbsd.xu
	OLD_FILES+=usr/libdata/ldscripts/elf32ppc_fbsd.xw
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc.x
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc.xbn
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc.xc
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc.xd
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc.xdc
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc.xdw
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc.xn
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc.xr
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc.xs
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc.xsc
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc.xsw
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc.xu
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc.xw
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc_fbsd.x
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc_fbsd.xbn
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc_fbsd.xc
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc_fbsd.xd
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc_fbsd.xdc
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc_fbsd.xdw
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc_fbsd.xn
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc_fbsd.xr
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc_fbsd.xs
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc_fbsd.xsc
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc_fbsd.xsw
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc_fbsd.xu
	OLD_FILES+=usr/libdata/ldscripts/elf64_sparc_fbsd.xw
	OLD_FILES+=usr/libdata/ldscripts/elf64btsmip_fbsd.x
	OLD_FILES+=usr/libdata/ldscripts/elf64btsmip_fbsd.xbn
	OLD_FILES+=usr/libdata/ldscripts/elf64btsmip_fbsd.xc
	OLD_FILES+=usr/libdata/ldscripts/elf64btsmip_fbsd.xd
	OLD_FILES+=usr/libdata/ldscripts/elf64btsmip_fbsd.xdc
	OLD_FILES+=usr/libdata/ldscripts/elf64btsmip_fbsd.xdw
	OLD_FILES+=usr/libdata/ldscripts/elf64btsmip_fbsd.xn
	OLD_FILES+=usr/libdata/ldscripts/elf64btsmip_fbsd.xr
	OLD_FILES+=usr/libdata/ldscripts/elf64btsmip_fbsd.xs
	OLD_FILES+=usr/libdata/ldscripts/elf64btsmip_fbsd.xsc
	OLD_FILES+=usr/libdata/ldscripts/elf64btsmip_fbsd.xsw
	OLD_FILES+=usr/libdata/ldscripts/elf64btsmip_fbsd.xu
	OLD_FILES+=usr/libdata/ldscripts/elf64btsmip_fbsd.xw
	OLD_FILES+=usr/libdata/ldscripts/elf64ltsmip_fbsd.x
	OLD_FILES+=usr/libdata/ldscripts/elf64ltsmip_fbsd.xbn
	OLD_FILES+=usr/libdata/ldscripts/elf64ltsmip_fbsd.xc
	OLD_FILES+=usr/libdata/ldscripts/elf64ltsmip_fbsd.xd
	OLD_FILES+=usr/libdata/ldscripts/elf64ltsmip_fbsd.xdc
	OLD_FILES+=usr/libdata/ldscripts/elf64ltsmip_fbsd.xdw
	OLD_FILES+=usr/libdata/ldscripts/elf64ltsmip_fbsd.xn
	OLD_FILES+=usr/libdata/ldscripts/elf64ltsmip_fbsd.xr
	OLD_FILES+=usr/libdata/ldscripts/elf64ltsmip_fbsd.xs
	OLD_FILES+=usr/libdata/ldscripts/elf64ltsmip_fbsd.xsc
	OLD_FILES+=usr/libdata/ldscripts/elf64ltsmip_fbsd.xsw
	OLD_FILES+=usr/libdata/ldscripts/elf64ltsmip_fbsd.xu
	OLD_FILES+=usr/libdata/ldscripts/elf64ltsmip_fbsd.xw
	OLD_FILES+=usr/libdata/ldscripts/elf64ppc_fbsd.x
	OLD_FILES+=usr/libdata/ldscripts/elf64ppc_fbsd.xbn
	OLD_FILES+=usr/libdata/ldscripts/elf64ppc_fbsd.xc
	OLD_FILES+=usr/libdata/ldscripts/elf64ppc_fbsd.xd
	OLD_FILES+=usr/libdata/ldscripts/elf64ppc_fbsd.xdc
	OLD_FILES+=usr/libdata/ldscripts/elf64ppc_fbsd.xdw
	OLD_FILES+=usr/libdata/ldscripts/elf64ppc_fbsd.xn
	OLD_FILES+=usr/libdata/ldscripts/elf64ppc_fbsd.xr
	OLD_FILES+=usr/libdata/ldscripts/elf64ppc_fbsd.xs
	OLD_FILES+=usr/libdata/ldscripts/elf64ppc_fbsd.xsc
	OLD_FILES+=usr/libdata/ldscripts/elf64ppc_fbsd.xsw
	OLD_FILES+=usr/libdata/ldscripts/elf64ppc_fbsd.xu
	OLD_FILES+=usr/libdata/ldscripts/elf64ppc_fbsd.xw
	OLD_FILES+=usr/libdata/ldscripts/elf_i386_fbsd.x
	OLD_FILES+=usr/libdata/ldscripts/elf_i386_fbsd.xbn
	OLD_FILES+=usr/libdata/ldscripts/elf_i386_fbsd.xc
	OLD_FILES+=usr/libdata/ldscripts/elf_i386_fbsd.xd
	OLD_FILES+=usr/libdata/ldscripts/elf_i386_fbsd.xdc
	OLD_FILES+=usr/libdata/ldscripts/elf_i386_fbsd.xdw
	OLD_FILES+=usr/libdata/ldscripts/elf_i386_fbsd.xn
	OLD_FILES+=usr/libdata/ldscripts/elf_i386_fbsd.xr
	OLD_FILES+=usr/libdata/ldscripts/elf_i386_fbsd.xs
	OLD_FILES+=usr/libdata/ldscripts/elf_i386_fbsd.xsc
	OLD_FILES+=usr/libdata/ldscripts/elf_i386_fbsd.xsw
	OLD_FILES+=usr/libdata/ldscripts/elf_i386_fbsd.xu
	OLD_FILES+=usr/libdata/ldscripts/elf_i386_fbsd.xw
	OLD_FILES+=usr/libdata/ldscripts/elf_x86_64_fbsd.x
	OLD_FILES+=usr/libdata/ldscripts/elf_x86_64_fbsd.xbn
	OLD_FILES+=usr/libdata/ldscripts/elf_x86_64_fbsd.xc
	OLD_FILES+=usr/libdata/ldscripts/elf_x86_64_fbsd.xd
	OLD_FILES+=usr/libdata/ldscripts/elf_x86_64_fbsd.xdc
	OLD_FILES+=usr/libdata/ldscripts/elf_x86_64_fbsd.xdw
	OLD_FILES+=usr/libdata/ldscripts/elf_x86_64_fbsd.xn
	OLD_FILES+=usr/libdata/ldscripts/elf_x86_64_fbsd.xr
	OLD_FILES+=usr/libdata/ldscripts/elf_x86_64_fbsd.xs
	OLD_FILES+=usr/libdata/ldscripts/elf_x86_64_fbsd.xsc
	OLD_FILES+=usr/libdata/ldscripts/elf_x86_64_fbsd.xsw
	OLD_FILES+=usr/libdata/ldscripts/elf_x86_64_fbsd.xu
	OLD_FILES+=usr/libdata/ldscripts/elf_x86_64_fbsd.xw

	# 20200601: OpenSSL 32-bit compat engines moved to /usr/lib32/engines
	OLD_LIBS+=usr/lib32/capi.so
	OLD_LIBS+=usr/lib32/padlock.so

	# 20200528: libevent renamed libevent1
	OLD_FILES+=usr/include/private/event/event.h
	OLD_DIRS+=usr/include/private/event
	OLD_FILES+=usr/lib/libprivateevent.a
	OLD_FILES+=usr/lib/libprivateevent.so
	OLD_LIBS+=usr/lib/libprivateevent.so.1
	OLD_FILES+=usr/lib/libprivateevent_p.a
	OLD_FILES+=usr/lib32/libprivateevent.a
	OLD_FILES+=usr/lib32/libprivateevent.so
	OLD_LIBS+=usr/lib32/libprivateevent.so.1
	OLD_FILES+=usr/lib32/libprivateevent_p.a

	# 20200523: new clang import which bumps version from 10.0.0 to 10.0.1.
	OLD_FILES+=usr/lib/clang/10.0.0/include/cuda_wrappers/algorithm
	OLD_FILES+=usr/lib/clang/10.0.0/include/cuda_wrappers/complex
	OLD_FILES+=usr/lib/clang/10.0.0/include/cuda_wrappers/new
	OLD_DIRS+=usr/lib/clang/10.0.0/include/cuda_wrappers
	OLD_FILES+=usr/lib/clang/10.0.0/include/fuzzer/FuzzedDataProvider.h
	OLD_DIRS+=usr/lib/clang/10.0.0/include/fuzzer
	OLD_FILES+=usr/lib/clang/10.0.0/include/openmp_wrappers/__clang_openmp_math.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/openmp_wrappers/__clang_openmp_math_declares.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/openmp_wrappers/cmath
	OLD_FILES+=usr/lib/clang/10.0.0/include/openmp_wrappers/math.h
	OLD_DIRS+=usr/lib/clang/10.0.0/include/openmp_wrappers
	OLD_FILES+=usr/lib/clang/10.0.0/include/ppc_wrappers/emmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/ppc_wrappers/mm_malloc.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/ppc_wrappers/mmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/ppc_wrappers/pmmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/ppc_wrappers/smmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/ppc_wrappers/tmmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/ppc_wrappers/xmmintrin.h
	OLD_DIRS+=usr/lib/clang/10.0.0/include/ppc_wrappers
	OLD_FILES+=usr/lib/clang/10.0.0/include/profile/InstrProfData.inc
	OLD_DIRS+=usr/lib/clang/10.0.0/include/profile
	OLD_FILES+=usr/lib/clang/10.0.0/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/sanitizer/hwasan_interface.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/sanitizer/netbsd_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/sanitizer/scudo_interface.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/sanitizer/tsan_interface.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/sanitizer/tsan_interface_atomic.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/sanitizer/ubsan_interface.h
	OLD_DIRS+=usr/lib/clang/10.0.0/include/sanitizer
	OLD_FILES+=usr/lib/clang/10.0.0/include/xray/xray_interface.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/xray/xray_log_interface.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/xray/xray_records.h
	OLD_DIRS+=usr/lib/clang/10.0.0/include/xray
	OLD_FILES+=usr/lib/clang/10.0.0/include/__clang_cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/__clang_cuda_cmath.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/__clang_cuda_complex_builtins.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/__clang_cuda_device_functions.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/__clang_cuda_intrinsics.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/__clang_cuda_libdevice_declares.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/__clang_cuda_math_forward_declares.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/__clang_cuda_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/altivec.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/arm64intr.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/arm_cmse.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/arm_fp16.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/arm_mve.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/armintr.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512bf16intrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512bitalgintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512ifmaintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512ifmavlintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512pfintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512vbmi2intrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512vbmiintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512vbmivlintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512vlbf16intrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512vlbitalgintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512vlcdintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512vlvbmi2intrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512vlvnniintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512vlvp2intersectintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512vnniintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512vp2intersectintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512vpopcntdqintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avx512vpopcntdqvlintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/cetintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/cldemoteintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/clflushoptintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/clwbintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/clzerointrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/cpuid.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/enqcmdintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/gfniintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/immintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/invpcidintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/lwpintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/module.modulemap
	OLD_FILES+=usr/lib/clang/10.0.0/include/movdirintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/msa.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/mwaitxintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/opencl-c-base.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/opencl-c.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/pconfigintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/pkuintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/ptwriteintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/sgxintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/vadefs.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/vaesintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/vpclmulqdqintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/waitpkgintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/wbnoinvdintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/xsavecintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/xsaveintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/xsaveoptintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/xsavesintrin.h
	OLD_FILES+=usr/lib/clang/10.0.0/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/10.0.0/include
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan-aarch64.so
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan-arm.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan-arm.so
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan-armhf.so
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan-i386.so
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan-preinit-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan-preinit-arm.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan-preinit-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan-x86_64.so
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan_cxx-arm.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan_cxx-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.cfi-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.cfi-arm.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.cfi-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.cfi-i386.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.cfi-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.cfi_diag-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.cfi_diag-arm.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.cfi_diag-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.cfi_diag-i386.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.cfi_diag-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.dd-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.dd-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.fuzzer-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.fuzzer-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.fuzzer_no_main-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.fuzzer_no_main-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.msan-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.msan-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.msan_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.msan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.profile-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.profile-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.profile-powerpc.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.profile-powerpc64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.safestack-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.stats-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.stats-arm.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.stats-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.stats-i386.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.stats-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.stats_client-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.stats_client-arm.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.stats_client-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.stats_client-i386.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.stats_client-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.tsan-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.tsan-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.tsan_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.tsan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.ubsan_minimal-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.ubsan_minimal-arm.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.ubsan_minimal-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.ubsan_minimal-i386.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.ubsan_minimal-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.ubsan_standalone-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.ubsan_standalone-arm.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.ubsan_standalone-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-arm.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.xray-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.xray-arm.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.xray-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.xray-basic-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.xray-basic-arm.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.xray-basic-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.xray-basic-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.xray-fdr-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.xray-fdr-arm.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.xray-fdr-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.xray-fdr-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.xray-profiling-aarch64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.xray-profiling-arm.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.xray-profiling-armhf.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.xray-profiling-x86_64.a
	OLD_FILES+=usr/lib/clang/10.0.0/lib/freebsd/libclang_rt.xray-x86_64.a
	OLD_DIRS+=usr/lib/clang/10.0.0/lib/freebsd
	OLD_DIRS+=usr/lib/clang/10.0.0/lib
	OLD_DIRS+=usr/lib/clang/10.0.0

	# 20200520: xform_userland.h removed
	OLD_FILES+=usr/include/crypto/xform_userland.h

	# 20200515: libalias cuseeme protocol support retired
	OLD_LIBS+=lib/libalias_cuseeme.so
	OLD_FILES+=usr/lib/libalias_cuseeme.a
	OLD_FILES+=usr/lib/libalias_cuseeme_p.a
	OLD_FILES+=usr/lib32/libalias_cuseeme.a
	OLD_LIBS+=usr/lib32/libalias_cuseeme.so
	OLD_FILES+=usr/lib32/libalias_cuseeme_p.a

	# 20200511: Remove deprecated crypto algorithms
	OLD_FILES+=usr/include/crypto/cast.h
	OLD_FILES+=usr/include/crypto/castsb.h
	OLD_FILES+=usr/include/crypto/skipjack.h

	# 20200511: Remove ubsec(4)
	OLD_FILES+=usr/share/man/man4/ubsec.4.gz

	# 20200506: GNU objdump 2.17.50 retired
	OLD_FILES+=usr/bin/objdump
	OLD_FILES+=usr/share/man/man1/objdump.1.gz

	# 20200428: route_var.h moved to net/route
	OLD_FILES+=usr/include/net/route_var.h

	# 20200418: Make libauditd private
	OLD_FILES+=usr/lib/libauditd.a
	OLD_FILES+=usr/lib/libauditd.so
	OLD_LIBS+=usr/lib/libauditd.so.5
	OLD_FILES+=usr/lib/libauditd_p.a
	OLD_FILES+=usr/lib32/libauditd.a
	OLD_FILES+=usr/lib32/libauditd.so
	OLD_LIBS+=usr/lib32/libauditd.so.5
	OLD_FILES+=usr/lib32/libauditd_p.a

	# 20200418: Remove bogus man links
	OLD_FILES+=usr/share/man/man3/getauusernam_R.3.gz
	OLD_FILES+=usr/share/man/man3/getauclassnam_3.3.gz

	# 20200414: NFS file handle affinity code for the NFS server re-organized
	OLD_FILES+=usr/include/nfs/nfs_fha.h

	# 20200401: Remove procfs-based process debugging
	OLD_FILES+=usr/include/sys/pioctl.h

	# 20200330: GDB_LIBEXEC option retired (always true)
	OLD_FILES+=usr/bin/gdb
	OLD_FILES+=usr/bin/gdbserver
	OLD_FILES+=usr/bin/kgdb
	OLD_FILES+=usr/share/man/man1/gdb.1.gz
	OLD_FILES+=usr/share/man/man1/gdbserver.1.gz
	OLD_FILES+=usr/share/man/man1/kgdb.1.gz

	# 20200327: OCF refactoring
	OLD_FILES+=usr/include/crypto/cryptosoft.h
	OLD_FILES+=usr/share/man/man9/crypto_find_driver.9.gz
	OLD_FILES+=usr/share/man/man9/crypto_register.9.gz
	OLD_FILES+=usr/share/man/man9/crypto_unregister.9.gz

	# 20200323: INTERNALLIB don't install headers anymore
	OLD_FILES+=usr/include/libelftc.h
	OLD_FILES+=usr/include/libifconfig.h
	OLD_FILES+=usr/include/libpmcstat.h

	# 20200320: cx and ctau drivers retired
	OLD_FILES+=usr/share/man/man4/ctau.4.gz
	OLD_FILES+=usr/share/man/man4/cx.4.gz

	# 20200318: host.conf was deprecated a long time ago.
	OLD_FILES+=etc/host.conf
	OLD_FILES+=etc/rc.d/nsswitch

	# 20200310: new clang import which bumps version from 9.0.1 to 10.0.0.
	OLD_FILES+=usr/lib/clang/9.0.1/include/cuda_wrappers/algorithm
	OLD_FILES+=usr/lib/clang/9.0.1/include/cuda_wrappers/complex
	OLD_FILES+=usr/lib/clang/9.0.1/include/cuda_wrappers/new
	OLD_DIRS+=usr/lib/clang/9.0.1/include/cuda_wrappers
	OLD_FILES+=usr/lib/clang/9.0.1/include/openmp_wrappers/__clang_openmp_math.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/openmp_wrappers/__clang_openmp_math_declares.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/openmp_wrappers/cmath
	OLD_FILES+=usr/lib/clang/9.0.1/include/openmp_wrappers/math.h
	OLD_DIRS+=usr/lib/clang/9.0.1/include/openmp_wrappers
	OLD_FILES+=usr/lib/clang/9.0.1/include/ppc_wrappers/emmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/ppc_wrappers/mm_malloc.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/ppc_wrappers/mmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/ppc_wrappers/xmmintrin.h
	OLD_DIRS+=usr/lib/clang/9.0.1/include/ppc_wrappers
	OLD_FILES+=usr/lib/clang/9.0.1/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/sanitizer/hwasan_interface.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/sanitizer/netbsd_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/sanitizer/scudo_interface.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/sanitizer/tsan_interface.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/sanitizer/tsan_interface_atomic.h
	OLD_DIRS+=usr/lib/clang/9.0.1/include/sanitizer
	OLD_FILES+=usr/lib/clang/9.0.1/include/__clang_cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/__clang_cuda_cmath.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/__clang_cuda_complex_builtins.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/__clang_cuda_device_functions.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/__clang_cuda_intrinsics.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/__clang_cuda_libdevice_declares.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/__clang_cuda_math_forward_declares.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/__clang_cuda_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/altivec.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/arm64intr.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/arm_fp16.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/armintr.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512bf16intrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512bitalgintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512ifmaintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512ifmavlintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512pfintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512vbmi2intrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512vbmiintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512vbmivlintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512vlbf16intrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512vlbitalgintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512vlcdintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512vlvbmi2intrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512vlvnniintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512vlvp2intersectintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512vnniintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512vp2intersectintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512vpopcntdqintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avx512vpopcntdqvlintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/cetintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/cldemoteintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/clflushoptintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/clwbintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/clzerointrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/cpuid.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/enqcmdintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/gfniintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/immintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/invpcidintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/lwpintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/module.modulemap
	OLD_FILES+=usr/lib/clang/9.0.1/include/movdirintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/msa.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/mwaitxintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/opencl-c-base.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/opencl-c.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/pconfigintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/pkuintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/ptwriteintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/sgxintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/vadefs.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/vaesintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/vpclmulqdqintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/waitpkgintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/wbnoinvdintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/xsavecintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/xsaveintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/xsaveoptintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/xsavesintrin.h
	OLD_FILES+=usr/lib/clang/9.0.1/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/9.0.1/include
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan-aarch64.so
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan-arm.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan-arm.so
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan-armhf.so
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan-i386.so
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan-preinit-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan-preinit-arm.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan-preinit-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan-x86_64.so
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan_cxx-arm.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan_cxx-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.cfi-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.cfi-arm.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.cfi-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.cfi-i386.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.cfi-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.cfi_diag-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.cfi_diag-arm.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.cfi_diag-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.cfi_diag-i386.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.cfi_diag-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.dd-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.dd-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.fuzzer-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.fuzzer-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.fuzzer_no_main-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.fuzzer_no_main-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.msan-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.msan-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.msan_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.msan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.profile-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.profile-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.profile-powerpc.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.profile-powerpc64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.safestack-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.stats-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.stats-arm.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.stats-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.stats-i386.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.stats-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.stats_client-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.stats_client-arm.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.stats_client-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.stats_client-i386.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.stats_client-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.tsan-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.tsan-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.tsan_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.tsan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.ubsan_minimal-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.ubsan_minimal-arm.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.ubsan_minimal-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.ubsan_minimal-i386.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.ubsan_minimal-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.ubsan_standalone-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.ubsan_standalone-arm.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.ubsan_standalone-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-arm.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.xray-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.xray-arm.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.xray-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.xray-basic-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.xray-basic-arm.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.xray-basic-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.xray-basic-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.xray-fdr-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.xray-fdr-arm.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.xray-fdr-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.xray-fdr-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.xray-profiling-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.xray-profiling-arm.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.xray-profiling-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.xray-profiling-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.1/lib/freebsd/libclang_rt.xray-x86_64.a
	OLD_DIRS+=usr/lib/clang/9.0.1/lib/freebsd
	OLD_DIRS+=usr/lib/clang/9.0.1/lib
	OLD_DIRS+=usr/lib/clang/9.0.1

	# 20200309: amd(8) retired
	OLD_FILES+=etc/amd.map
	OLD_FILES+=etc/newsyslog.conf.d/amd.conf
	OLD_FILES+=etc/rc.d/amd
	OLD_FILES+=usr/bin/pawd
	OLD_FILES+=usr/sbin/amd
	OLD_FILES+=usr/sbin/amq
	OLD_FILES+=usr/sbin/fixmount
	OLD_FILES+=usr/sbin/fsinfo
	OLD_FILES+=usr/sbin/hlfsd
	OLD_FILES+=usr/sbin/mk-amd-map
	OLD_FILES+=usr/sbin/wire-test
	OLD_FILES+=usr/share/examples/etc/amd.map
	OLD_FILES+=usr/share/man/man1/pawd.1.gz
	OLD_FILES+=usr/share/man/man5/amd.conf.5.gz
	OLD_FILES+=usr/share/man/man8/amd.8.gz
	OLD_FILES+=usr/share/man/man8/amq.8.gz
	OLD_FILES+=usr/share/man/man8/fixmount.8.gz
	OLD_FILES+=usr/share/man/man8/fsinfo.8.gz
	OLD_FILES+=usr/share/man/man8/hlfsd.8.gz
	OLD_FILES+=usr/share/man/man8/mk-amd-map.8.gz
	OLD_FILES+=usr/share/man/man8/wire-test.8.gz

	# 20200301: bktr removed
	OLD_DIRS+=usr/include/dev/bktr
	OLD_FILES+=usr/include/dev/bktr/ioctl_bktr.h
	OLD_FILES+=usr/include/dev/bktr/ioctl_bt848.h
	OLD_FILES+=usr/include/dev/bktr/ioctl_meteor.h
	.if ${TARGET_ARCH} == "i386"
	OLD_FILES+=usr/include/machine/ioctl_bktr.h
	OLD_FILES+=usr/include/machine/ioctl_meteor.h
	.endif
	OLD_FILES+=usr/share/man/man4/bktr.4.gz
	OLD_FILES+=usr/share/man/man4/brooktree.4.gz

	# 20200229: GCC 4.2.1 removed
	.if !defined(WITH_PORT_BASE_GCC)
	OLD_FILES+=usr/bin/g++
	OLD_FILES+=usr/bin/gcc
	OLD_FILES+=usr/share/man/man1/g++.1.gz
	OLD_FILES+=usr/share/man/man1/gcc.1.gz
	.endif
	OLD_FILES+=usr/bin/gcpp
	OLD_FILES+=usr/bin/gperf
	OLD_FILES+=usr/include/c++/4.2/algorithm
	OLD_FILES+=usr/include/c++/4.2/backward/algo.h
	OLD_FILES+=usr/include/c++/4.2/backward/algobase.h
	OLD_FILES+=usr/include/c++/4.2/backward/alloc.h
	OLD_FILES+=usr/include/c++/4.2/backward/backward_warning.h
	OLD_FILES+=usr/include/c++/4.2/backward/bvector.h
	OLD_FILES+=usr/include/c++/4.2/backward/complex.h
	OLD_FILES+=usr/include/c++/4.2/backward/defalloc.h
	OLD_FILES+=usr/include/c++/4.2/backward/deque.h
	OLD_FILES+=usr/include/c++/4.2/backward/fstream.h
	OLD_FILES+=usr/include/c++/4.2/backward/function.h
	OLD_FILES+=usr/include/c++/4.2/backward/hash_map.h
	OLD_FILES+=usr/include/c++/4.2/backward/hash_set.h
	OLD_FILES+=usr/include/c++/4.2/backward/hashtable.h
	OLD_FILES+=usr/include/c++/4.2/backward/heap.h
	OLD_FILES+=usr/include/c++/4.2/backward/iomanip.h
	OLD_FILES+=usr/include/c++/4.2/backward/iostream.h
	OLD_FILES+=usr/include/c++/4.2/backward/istream.h
	OLD_FILES+=usr/include/c++/4.2/backward/iterator.h
	OLD_FILES+=usr/include/c++/4.2/backward/list.h
	OLD_FILES+=usr/include/c++/4.2/backward/map.h
	OLD_FILES+=usr/include/c++/4.2/backward/multimap.h
	OLD_FILES+=usr/include/c++/4.2/backward/multiset.h
	OLD_FILES+=usr/include/c++/4.2/backward/new.h
	OLD_FILES+=usr/include/c++/4.2/backward/ostream.h
	OLD_FILES+=usr/include/c++/4.2/backward/pair.h
	OLD_FILES+=usr/include/c++/4.2/backward/queue.h
	OLD_FILES+=usr/include/c++/4.2/backward/rope.h
	OLD_FILES+=usr/include/c++/4.2/backward/set.h
	OLD_FILES+=usr/include/c++/4.2/backward/slist.h
	OLD_FILES+=usr/include/c++/4.2/backward/stack.h
	OLD_FILES+=usr/include/c++/4.2/backward/stream.h
	OLD_FILES+=usr/include/c++/4.2/backward/streambuf.h
	OLD_FILES+=usr/include/c++/4.2/backward/strstream
	OLD_FILES+=usr/include/c++/4.2/backward/tempbuf.h
	OLD_FILES+=usr/include/c++/4.2/backward/tree.h
	OLD_FILES+=usr/include/c++/4.2/backward/vector.h
	OLD_FILES+=usr/include/c++/4.2/bits/allocator.h
	OLD_FILES+=usr/include/c++/4.2/bits/atomic_word.h
	OLD_FILES+=usr/include/c++/4.2/bits/basic_file.h
	OLD_FILES+=usr/include/c++/4.2/bits/basic_ios.h
	OLD_FILES+=usr/include/c++/4.2/bits/basic_ios.tcc
	OLD_FILES+=usr/include/c++/4.2/bits/basic_string.h
	OLD_FILES+=usr/include/c++/4.2/bits/basic_string.tcc
	OLD_FILES+=usr/include/c++/4.2/bits/boost_concept_check.h
	OLD_FILES+=usr/include/c++/4.2/bits/c++allocator.h
	OLD_FILES+=usr/include/c++/4.2/bits/c++config.h
	OLD_FILES+=usr/include/c++/4.2/bits/c++io.h
	OLD_FILES+=usr/include/c++/4.2/bits/c++locale.h
	OLD_FILES+=usr/include/c++/4.2/bits/c++locale_internal.h
	OLD_FILES+=usr/include/c++/4.2/bits/char_traits.h
	OLD_FILES+=usr/include/c++/4.2/bits/cmath.tcc
	OLD_FILES+=usr/include/c++/4.2/bits/codecvt.h
	OLD_FILES+=usr/include/c++/4.2/bits/compatibility.h
	OLD_FILES+=usr/include/c++/4.2/bits/concept_check.h
	OLD_FILES+=usr/include/c++/4.2/bits/cpp_type_traits.h
	OLD_FILES+=usr/include/c++/4.2/bits/cpu_defines.h
	OLD_FILES+=usr/include/c++/4.2/bits/ctype_base.h
	OLD_FILES+=usr/include/c++/4.2/bits/ctype_inline.h
	OLD_FILES+=usr/include/c++/4.2/bits/ctype_noninline.h
	OLD_FILES+=usr/include/c++/4.2/bits/cxxabi_tweaks.h
	OLD_FILES+=usr/include/c++/4.2/bits/deque.tcc
	OLD_FILES+=usr/include/c++/4.2/bits/fstream.tcc
	OLD_FILES+=usr/include/c++/4.2/bits/functexcept.h
	OLD_FILES+=usr/include/c++/4.2/bits/gslice.h
	OLD_FILES+=usr/include/c++/4.2/bits/gslice_array.h
	OLD_FILES+=usr/include/c++/4.2/bits/gthr-default.h
	OLD_FILES+=usr/include/c++/4.2/bits/gthr-posix.h
	OLD_FILES+=usr/include/c++/4.2/bits/gthr-single.h
	OLD_FILES+=usr/include/c++/4.2/bits/gthr-tpf.h
	OLD_FILES+=usr/include/c++/4.2/bits/gthr.h
	OLD_FILES+=usr/include/c++/4.2/bits/indirect_array.h
	OLD_FILES+=usr/include/c++/4.2/bits/ios_base.h
	OLD_FILES+=usr/include/c++/4.2/bits/istream.tcc
	OLD_FILES+=usr/include/c++/4.2/bits/list.tcc
	OLD_FILES+=usr/include/c++/4.2/bits/locale_classes.h
	OLD_FILES+=usr/include/c++/4.2/bits/locale_facets.h
	OLD_FILES+=usr/include/c++/4.2/bits/locale_facets.tcc
	OLD_FILES+=usr/include/c++/4.2/bits/localefwd.h
	OLD_FILES+=usr/include/c++/4.2/bits/mask_array.h
	OLD_FILES+=usr/include/c++/4.2/bits/messages_members.h
	OLD_FILES+=usr/include/c++/4.2/bits/os_defines.h
	OLD_FILES+=usr/include/c++/4.2/bits/ostream.tcc
	OLD_FILES+=usr/include/c++/4.2/bits/ostream_insert.h
	OLD_FILES+=usr/include/c++/4.2/bits/postypes.h
	OLD_FILES+=usr/include/c++/4.2/bits/slice_array.h
	OLD_FILES+=usr/include/c++/4.2/bits/sstream.tcc
	OLD_FILES+=usr/include/c++/4.2/bits/stl_algo.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_algobase.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_bvector.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_construct.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_deque.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_function.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_heap.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_iterator.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_iterator_base_funcs.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_iterator_base_types.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_list.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_map.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_multimap.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_multiset.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_numeric.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_pair.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_queue.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_raw_storage_iter.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_relops.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_set.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_stack.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_tempbuf.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_tree.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_uninitialized.h
	OLD_FILES+=usr/include/c++/4.2/bits/stl_vector.h
	OLD_FILES+=usr/include/c++/4.2/bits/stream_iterator.h
	OLD_FILES+=usr/include/c++/4.2/bits/streambuf.tcc
	OLD_FILES+=usr/include/c++/4.2/bits/streambuf_iterator.h
	OLD_FILES+=usr/include/c++/4.2/bits/stringfwd.h
	OLD_FILES+=usr/include/c++/4.2/bits/time_members.h
	OLD_FILES+=usr/include/c++/4.2/bits/valarray_after.h
	OLD_FILES+=usr/include/c++/4.2/bits/valarray_array.h
	OLD_FILES+=usr/include/c++/4.2/bits/valarray_array.tcc
	OLD_FILES+=usr/include/c++/4.2/bits/valarray_before.h
	OLD_FILES+=usr/include/c++/4.2/bits/vector.tcc
	OLD_FILES+=usr/include/c++/4.2/bitset
	OLD_FILES+=usr/include/c++/4.2/cassert
	OLD_FILES+=usr/include/c++/4.2/cctype
	OLD_FILES+=usr/include/c++/4.2/cerrno
	OLD_FILES+=usr/include/c++/4.2/cfloat
	OLD_FILES+=usr/include/c++/4.2/ciso646
	OLD_FILES+=usr/include/c++/4.2/climits
	OLD_FILES+=usr/include/c++/4.2/clocale
	OLD_FILES+=usr/include/c++/4.2/cmath
	OLD_FILES+=usr/include/c++/4.2/complex
	OLD_FILES+=usr/include/c++/4.2/csetjmp
	OLD_FILES+=usr/include/c++/4.2/csignal
	OLD_FILES+=usr/include/c++/4.2/cstdarg
	OLD_FILES+=usr/include/c++/4.2/cstddef
	OLD_FILES+=usr/include/c++/4.2/cstdio
	OLD_FILES+=usr/include/c++/4.2/cstdlib
	OLD_FILES+=usr/include/c++/4.2/cstring
	OLD_FILES+=usr/include/c++/4.2/ctime
	OLD_FILES+=usr/include/c++/4.2/cwchar
	OLD_FILES+=usr/include/c++/4.2/cwctype
	OLD_FILES+=usr/include/c++/4.2/cxxabi.h
	OLD_FILES+=usr/include/c++/4.2/debug/bitset
	OLD_FILES+=usr/include/c++/4.2/debug/debug.h
	OLD_FILES+=usr/include/c++/4.2/debug/deque
	OLD_FILES+=usr/include/c++/4.2/debug/formatter.h
	OLD_FILES+=usr/include/c++/4.2/debug/functions.h
	OLD_FILES+=usr/include/c++/4.2/debug/hash_map
	OLD_FILES+=usr/include/c++/4.2/debug/hash_map.h
	OLD_FILES+=usr/include/c++/4.2/debug/hash_multimap.h
	OLD_FILES+=usr/include/c++/4.2/debug/hash_multiset.h
	OLD_FILES+=usr/include/c++/4.2/debug/hash_set
	OLD_FILES+=usr/include/c++/4.2/debug/hash_set.h
	OLD_FILES+=usr/include/c++/4.2/debug/list
	OLD_FILES+=usr/include/c++/4.2/debug/macros.h
	OLD_FILES+=usr/include/c++/4.2/debug/map
	OLD_FILES+=usr/include/c++/4.2/debug/map.h
	OLD_FILES+=usr/include/c++/4.2/debug/multimap.h
	OLD_FILES+=usr/include/c++/4.2/debug/multiset.h
	OLD_FILES+=usr/include/c++/4.2/debug/safe_base.h
	OLD_FILES+=usr/include/c++/4.2/debug/safe_iterator.h
	OLD_FILES+=usr/include/c++/4.2/debug/safe_iterator.tcc
	OLD_FILES+=usr/include/c++/4.2/debug/safe_sequence.h
	OLD_FILES+=usr/include/c++/4.2/debug/set
	OLD_FILES+=usr/include/c++/4.2/debug/set.h
	OLD_FILES+=usr/include/c++/4.2/debug/string
	OLD_FILES+=usr/include/c++/4.2/debug/vector
	OLD_FILES+=usr/include/c++/4.2/deque
	OLD_FILES+=usr/include/c++/4.2/exception
	OLD_FILES+=usr/include/c++/4.2/exception_defines.h
	OLD_FILES+=usr/include/c++/4.2/ext/algorithm
	OLD_FILES+=usr/include/c++/4.2/ext/array_allocator.h
	OLD_FILES+=usr/include/c++/4.2/ext/atomicity.h
	OLD_FILES+=usr/include/c++/4.2/ext/bitmap_allocator.h
	OLD_FILES+=usr/include/c++/4.2/ext/codecvt_specializations.h
	OLD_FILES+=usr/include/c++/4.2/ext/concurrence.h
	OLD_FILES+=usr/include/c++/4.2/ext/debug_allocator.h
	OLD_FILES+=usr/include/c++/4.2/ext/functional
	OLD_FILES+=usr/include/c++/4.2/ext/hash_fun.h
	OLD_FILES+=usr/include/c++/4.2/ext/hash_map
	OLD_FILES+=usr/include/c++/4.2/ext/hash_set
	OLD_FILES+=usr/include/c++/4.2/ext/hashtable.h
	OLD_FILES+=usr/include/c++/4.2/ext/iterator
	OLD_FILES+=usr/include/c++/4.2/ext/malloc_allocator.h
	OLD_FILES+=usr/include/c++/4.2/ext/memory
	OLD_FILES+=usr/include/c++/4.2/ext/mt_allocator.h
	OLD_FILES+=usr/include/c++/4.2/ext/new_allocator.h
	OLD_FILES+=usr/include/c++/4.2/ext/numeric
	OLD_FILES+=usr/include/c++/4.2/ext/numeric_traits.h
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/assoc_container.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/basic_tree_policy/basic_tree_policy_base.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/basic_tree_policy/null_node_metadata.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/basic_tree_policy/traits.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/basic_types.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/bin_search_tree_.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/cond_dtor_entry_dealtor.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/cond_key_dtor_entry_dealtor.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/constructors_destructor_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/debug_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/erase_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/find_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/info_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/insert_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/iterators_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/node_iterators.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/point_iterators.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/policy_access_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/r_erase_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/rotate_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/split_join_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/bin_search_tree_/traits.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binary_heap_/const_iterator.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binary_heap_/const_point_iterator.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binary_heap_/constructors_destructor_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binary_heap_/debug_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binary_heap_/entry_cmp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binary_heap_/entry_pred.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binary_heap_/erase_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binary_heap_/find_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binary_heap_/insert_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binary_heap_/iterators_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binary_heap_/policy_access_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binary_heap_/resize_policy.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binary_heap_/split_join_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binary_heap_/trace_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binomial_heap_/binomial_heap_.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binomial_heap_/constructors_destructor_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binomial_heap_/debug_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binomial_heap_base_/binomial_heap_base_.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binomial_heap_base_/constructors_destructor_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binomial_heap_base_/debug_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binomial_heap_base_/erase_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binomial_heap_base_/find_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binomial_heap_base_/insert_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/binomial_heap_base_/split_join_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/cmp_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/cond_key_dtor_entry_dealtor.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_no_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/debug_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/debug_no_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/debug_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/entry_list_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/erase_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/erase_no_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/erase_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/find_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/find_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/info_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/insert_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/insert_no_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/insert_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/iterators_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/policy_access_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/resize_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/resize_no_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/resize_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/size_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/standard_policies.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cc_hash_table_map_/trace_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/cond_dealtor.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/constructors_destructor_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/container_base_dispatch.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/eq_fn/eq_by_less.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/eq_fn/hash_eq_fn.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/constructor_destructor_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/constructor_destructor_no_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/constructor_destructor_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/debug_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/debug_no_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/debug_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/erase_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/erase_no_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/erase_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/find_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/find_no_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/find_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/gp_ht_map_.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/info_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/insert_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/insert_no_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/insert_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/iterator_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/policy_access_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/resize_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/resize_no_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/resize_store_hash_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/standard_policies.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/gp_hash_table_map_/trace_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/hash_fn/direct_mask_range_hashing_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/hash_fn/direct_mod_range_hashing_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/hash_fn/linear_probe_fn_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/hash_fn/mask_based_range_hashing.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/hash_fn/mod_based_range_hashing.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/hash_fn/probe_fn_base.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/hash_fn/quadratic_probe_fn_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/hash_fn/ranged_hash_fn.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/hash_fn/ranged_probe_fn.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/hash_fn/sample_probe_fn.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/hash_fn/sample_range_hashing.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/hash_fn/sample_ranged_hash_fn.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/hash_fn/sample_ranged_probe_fn.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/left_child_next_sibling_heap_/const_iterator.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/left_child_next_sibling_heap_/const_point_iterator.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/left_child_next_sibling_heap_/constructors_destructor_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/left_child_next_sibling_heap_/debug_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/left_child_next_sibling_heap_/erase_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/left_child_next_sibling_heap_/info_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/left_child_next_sibling_heap_/insert_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/left_child_next_sibling_heap_/iterators_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/left_child_next_sibling_heap_/left_child_next_sibling_heap_.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/left_child_next_sibling_heap_/node.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/left_child_next_sibling_heap_/null_metadata.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/left_child_next_sibling_heap_/policy_access_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/left_child_next_sibling_heap_/trace_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/list_update_map_/constructor_destructor_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/list_update_map_/debug_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/list_update_map_/entry_metadata_base.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/list_update_map_/erase_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/list_update_map_/find_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/list_update_map_/info_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/list_update_map_/insert_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/list_update_map_/iterators_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/list_update_map_/lu_map_.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/list_update_map_/trace_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/list_update_policy/counter_lu_metadata.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/list_update_policy/counter_lu_policy_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/list_update_policy/mtf_lu_policy_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/list_update_policy/sample_update_policy.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/map_debug_base.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/ov_tree_map_/cond_dtor.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/ov_tree_map_/constructors_destructor_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/ov_tree_map_/debug_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/ov_tree_map_/erase_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/ov_tree_map_/info_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/ov_tree_map_/insert_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/ov_tree_map_/iterators_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/ov_tree_map_/node_iterators.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/ov_tree_map_/ov_tree_map_.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/ov_tree_map_/policy_access_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/ov_tree_map_/split_join_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/ov_tree_map_/traits.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pairing_heap_/constructors_destructor_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pairing_heap_/debug_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pairing_heap_/erase_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pairing_heap_/find_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pairing_heap_/insert_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pairing_heap_/pairing_heap_.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pairing_heap_/split_join_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/child_iterator.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/cond_dtor_entry_dealtor.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/const_child_iterator.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/constructors_destructor_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/debug_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/erase_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/find_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/head.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/info_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/insert_join_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/internal_node.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/iterators_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/leaf.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/node_base.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/node_iterators.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/node_metadata_base.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/pat_trie_.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/point_iterators.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/policy_access_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/r_erase_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/rotate_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/split_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/split_join_branch_bag.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/synth_e_access_traits.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/trace_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/traits.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/pat_trie_/update_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/priority_queue_base_dispatch.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rb_tree_map_/constructors_destructor_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rb_tree_map_/debug_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rb_tree_map_/erase_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rb_tree_map_/find_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rb_tree_map_/info_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rb_tree_map_/insert_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rb_tree_map_/node.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rb_tree_map_/rb_tree_.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rb_tree_map_/split_join_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rb_tree_map_/traits.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rc_binomial_heap_/constructors_destructor_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rc_binomial_heap_/debug_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rc_binomial_heap_/erase_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rc_binomial_heap_/insert_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rc_binomial_heap_/rc.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rc_binomial_heap_/rc_binomial_heap_.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rc_binomial_heap_/split_join_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/rc_binomial_heap_/trace_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/resize_policy/cc_hash_max_collision_check_resize_trigger_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/resize_policy/hash_exponential_size_policy_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/resize_policy/hash_load_check_resize_trigger_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/resize_policy/hash_load_check_resize_trigger_size_base.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/resize_policy/hash_prime_size_policy_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/resize_policy/hash_standard_resize_policy_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/resize_policy/sample_resize_policy.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/resize_policy/sample_resize_trigger.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/resize_policy/sample_size_policy.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/splay_tree_/constructors_destructor_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/splay_tree_/debug_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/splay_tree_/erase_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/splay_tree_/find_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/splay_tree_/info_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/splay_tree_/insert_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/splay_tree_/node.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/splay_tree_/splay_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/splay_tree_/splay_tree_.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/splay_tree_/split_join_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/splay_tree_/traits.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/standard_policies.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/thin_heap_/constructors_destructor_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/thin_heap_/debug_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/thin_heap_/erase_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/thin_heap_/find_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/thin_heap_/insert_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/thin_heap_/split_join_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/thin_heap_/thin_heap_.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/thin_heap_/trace_fn_imps.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/tree_policy/node_metadata_selector.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/tree_policy/null_node_update_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/tree_policy/order_statistics_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/tree_policy/sample_tree_node_update.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/tree_trace_base.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/trie_policy/node_metadata_selector.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/trie_policy/null_node_update_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/trie_policy/order_statistics_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/trie_policy/prefix_search_node_update_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/trie_policy/sample_trie_e_access_traits.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/trie_policy/sample_trie_node_update.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/trie_policy/string_trie_e_access_traits_imp.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/trie_policy/trie_policy_base.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/type_utils.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/types_traits.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/unordered_iterator/const_iterator.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/unordered_iterator/const_point_iterator.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/unordered_iterator/iterator.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/detail/unordered_iterator/point_iterator.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/exception.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/hash_policy.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/list_update_policy.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/priority_queue.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/tag_and_trait.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/tree_policy.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pb_ds/trie_policy.hpp
	OLD_FILES+=usr/include/c++/4.2/ext/pod_char_traits.h
	OLD_FILES+=usr/include/c++/4.2/ext/pool_allocator.h
	OLD_FILES+=usr/include/c++/4.2/ext/rb_tree
	OLD_FILES+=usr/include/c++/4.2/ext/rc_string_base.h
	OLD_FILES+=usr/include/c++/4.2/ext/rope
	OLD_FILES+=usr/include/c++/4.2/ext/ropeimpl.h
	OLD_FILES+=usr/include/c++/4.2/ext/slist
	OLD_FILES+=usr/include/c++/4.2/ext/sso_string_base.h
	OLD_FILES+=usr/include/c++/4.2/ext/stdio_filebuf.h
	OLD_FILES+=usr/include/c++/4.2/ext/stdio_sync_filebuf.h
	OLD_FILES+=usr/include/c++/4.2/ext/throw_allocator.h
	OLD_FILES+=usr/include/c++/4.2/ext/type_traits.h
	OLD_FILES+=usr/include/c++/4.2/ext/typelist.h
	OLD_FILES+=usr/include/c++/4.2/ext/vstring.h
	OLD_FILES+=usr/include/c++/4.2/ext/vstring.tcc
	OLD_FILES+=usr/include/c++/4.2/ext/vstring_fwd.h
	OLD_FILES+=usr/include/c++/4.2/ext/vstring_util.h
	OLD_FILES+=usr/include/c++/4.2/fstream
	OLD_FILES+=usr/include/c++/4.2/functional
	OLD_FILES+=usr/include/c++/4.2/iomanip
	OLD_FILES+=usr/include/c++/4.2/ios
	OLD_FILES+=usr/include/c++/4.2/iosfwd
	OLD_FILES+=usr/include/c++/4.2/iostream
	OLD_FILES+=usr/include/c++/4.2/istream
	OLD_FILES+=usr/include/c++/4.2/iterator
	OLD_FILES+=usr/include/c++/4.2/limits
	OLD_FILES+=usr/include/c++/4.2/list
	OLD_FILES+=usr/include/c++/4.2/locale
	OLD_FILES+=usr/include/c++/4.2/map
	OLD_FILES+=usr/include/c++/4.2/memory
	OLD_FILES+=usr/include/c++/4.2/new
	OLD_FILES+=usr/include/c++/4.2/numeric
	OLD_FILES+=usr/include/c++/4.2/ostream
	OLD_FILES+=usr/include/c++/4.2/queue
	OLD_FILES+=usr/include/c++/4.2/set
	OLD_FILES+=usr/include/c++/4.2/sstream
	OLD_FILES+=usr/include/c++/4.2/stack
	OLD_FILES+=usr/include/c++/4.2/stdexcept
	OLD_FILES+=usr/include/c++/4.2/streambuf
	OLD_FILES+=usr/include/c++/4.2/string
	OLD_FILES+=usr/include/c++/4.2/tr1/array
	OLD_FILES+=usr/include/c++/4.2/tr1/bind_iterate.h
	OLD_FILES+=usr/include/c++/4.2/tr1/bind_repeat.h
	OLD_FILES+=usr/include/c++/4.2/tr1/boost_shared_ptr.h
	OLD_FILES+=usr/include/c++/4.2/tr1/cctype
	OLD_FILES+=usr/include/c++/4.2/tr1/cfenv
	OLD_FILES+=usr/include/c++/4.2/tr1/cfloat
	OLD_FILES+=usr/include/c++/4.2/tr1/cinttypes
	OLD_FILES+=usr/include/c++/4.2/tr1/climits
	OLD_FILES+=usr/include/c++/4.2/tr1/cmath
	OLD_FILES+=usr/include/c++/4.2/tr1/common.h
	OLD_FILES+=usr/include/c++/4.2/tr1/complex
	OLD_FILES+=usr/include/c++/4.2/tr1/cstdarg
	OLD_FILES+=usr/include/c++/4.2/tr1/cstdbool
	OLD_FILES+=usr/include/c++/4.2/tr1/cstdint
	OLD_FILES+=usr/include/c++/4.2/tr1/cstdio
	OLD_FILES+=usr/include/c++/4.2/tr1/cstdlib
	OLD_FILES+=usr/include/c++/4.2/tr1/ctgmath
	OLD_FILES+=usr/include/c++/4.2/tr1/ctime
	OLD_FILES+=usr/include/c++/4.2/tr1/ctype.h
	OLD_FILES+=usr/include/c++/4.2/tr1/cwchar
	OLD_FILES+=usr/include/c++/4.2/tr1/cwctype
	OLD_FILES+=usr/include/c++/4.2/tr1/fenv.h
	OLD_FILES+=usr/include/c++/4.2/tr1/float.h
	OLD_FILES+=usr/include/c++/4.2/tr1/functional
	OLD_FILES+=usr/include/c++/4.2/tr1/functional_hash.h
	OLD_FILES+=usr/include/c++/4.2/tr1/functional_iterate.h
	OLD_FILES+=usr/include/c++/4.2/tr1/hashtable
	OLD_FILES+=usr/include/c++/4.2/tr1/hashtable_policy.h
	OLD_FILES+=usr/include/c++/4.2/tr1/inttypes.h
	OLD_FILES+=usr/include/c++/4.2/tr1/limits.h
	OLD_FILES+=usr/include/c++/4.2/tr1/math.h
	OLD_FILES+=usr/include/c++/4.2/tr1/memory
	OLD_FILES+=usr/include/c++/4.2/tr1/mu_iterate.h
	OLD_FILES+=usr/include/c++/4.2/tr1/random
	OLD_FILES+=usr/include/c++/4.2/tr1/random.tcc
	OLD_FILES+=usr/include/c++/4.2/tr1/ref_fwd.h
	OLD_FILES+=usr/include/c++/4.2/tr1/ref_wrap_iterate.h
	OLD_FILES+=usr/include/c++/4.2/tr1/repeat.h
	OLD_FILES+=usr/include/c++/4.2/tr1/stdarg.h
	OLD_FILES+=usr/include/c++/4.2/tr1/stdbool.h
	OLD_FILES+=usr/include/c++/4.2/tr1/stdint.h
	OLD_FILES+=usr/include/c++/4.2/tr1/stdio.h
	OLD_FILES+=usr/include/c++/4.2/tr1/stdlib.h
	OLD_FILES+=usr/include/c++/4.2/tr1/tgmath.h
	OLD_FILES+=usr/include/c++/4.2/tr1/tuple
	OLD_FILES+=usr/include/c++/4.2/tr1/tuple_defs.h
	OLD_FILES+=usr/include/c++/4.2/tr1/tuple_iterate.h
	OLD_FILES+=usr/include/c++/4.2/tr1/type_traits
	OLD_FILES+=usr/include/c++/4.2/tr1/type_traits_fwd.h
	OLD_FILES+=usr/include/c++/4.2/tr1/unordered_map
	OLD_FILES+=usr/include/c++/4.2/tr1/unordered_set
	OLD_FILES+=usr/include/c++/4.2/tr1/utility
	OLD_FILES+=usr/include/c++/4.2/tr1/wchar.h
	OLD_FILES+=usr/include/c++/4.2/tr1/wctype.h
	OLD_FILES+=usr/include/c++/4.2/typeinfo
	OLD_FILES+=usr/include/c++/4.2/utility
	OLD_FILES+=usr/include/c++/4.2/valarray
	OLD_FILES+=usr/include/c++/4.2/vector
	.if ${TARGET_ARCH} == "amd64" \|\| ${TARGET_ARCH} == "i386"
	OLD_FILES+=usr/include/gcc/4.2/__wmmintrin_aes.h
	OLD_FILES+=usr/include/gcc/4.2/__wmmintrin_pclmul.h
	OLD_FILES+=usr/include/gcc/4.2/ammintrin.h
	OLD_FILES+=usr/include/gcc/4.2/emmintrin.h
	OLD_FILES+=usr/include/gcc/4.2/mm3dnow.h
	OLD_FILES+=usr/include/gcc/4.2/mm_malloc.h
	OLD_FILES+=usr/include/gcc/4.2/mmintrin.h
	OLD_FILES+=usr/include/gcc/4.2/pmmintrin.h
	OLD_FILES+=usr/include/gcc/4.2/tmmintrin.h
	OLD_FILES+=usr/include/gcc/4.2/wmmintrin.h
	OLD_FILES+=usr/include/gcc/4.2/xmmintrin.h
	.elif ${TARGET_ARCH} == "arm"
	OLD_FILES+=usr/include/gcc/4.2/mmintrin.h
	.elif ${TARGET_ARCH} == "powerpc" \|\| ${TARGET_ARCH} == "powerpc64"
	OLD_FILES+=usr/include/gcc/4.2/altivec.h
	OLD_FILES+=usr/include/gcc/4.2/ppc-asm.h
	OLD_FILES+=usr/include/gcc/4.2/spe.h
	.endif
	OLD_FILES+=usr/lib/libgcov.a
	OLD_FILES+=usr/lib/libgomp.a
	OLD_FILES+=usr/lib/libstdc++.a
	OLD_FILES+=usr/lib/libstdc++.so
	OLD_LIBS+=usr/lib/libstdc++.so.6
	OLD_FILES+=usr/lib/libstdc++_p.a
	OLD_FILES+=usr/lib/libsupc++.a
	OLD_FILES+=usr/lib/libsupc++.so
	OLD_LIBS+=usr/lib/libsupc++.so.1
	OLD_FILES+=usr/lib/libsupc++_p.a
	.if ${TARGET_ARCH} == "amd64" \|\| ${TARGET_ARCH} == "powerpc64"
	OLD_FILES+=usr/lib32/libstdc++.a
	OLD_FILES+=usr/lib32/libstdc++.so
	OLD_LIBS+=usr/lib32/libstdc++.so.6
	OLD_FILES+=usr/lib32/libstdc++_p.a
	OLD_FILES+=usr/lib32/libsupc++.a
	OLD_FILES+=usr/lib32/libsupc++.so
	OLD_LIBS+=usr/lib32/libsupc++.so.1
	OLD_FILES+=usr/lib32/libsupc++_p.a
	.endif
	OLD_LIBS+=usr/lib/libgomp.so.1
	OLD_FILES+=usr/lib/libgomp_p.a
	OLD_FILES+=usr/lib32/libgcov.a
	OLD_FILES+=usr/lib32/libgomp.a
	OLD_LIBS+=usr/lib32/libgomp.so.1
	OLD_FILES+=usr/lib32/libgomp_p.a
	OLD_FILES+=usr/libexec/cc1
	OLD_FILES+=usr/libexec/cc1plus
	OLD_FILES+=usr/share/man/man1/gcpp.1.gz
	OLD_FILES+=usr/share/man/man1/gperf.1.gz
	OLD_FILES+=usr/share/man/man7/gperf.7.gz

	# 20200220: Upgrade of ncurses, shlib bumped to version 9
	OLD_LIBS+=lib/libncurses.so.8
	OLD_LIBS+=lib/libncursesw.so.8
	OLD_LIBS+=usr/lib32/libncurses.so.8
	OLD_LIBS+=usr/lib32/libncursesw.so.8

	# 20200206: Remove elf2aout
	OLD_FILES+=usr/bin/elf2aout
	OLD_FILES+=usr/share/man/man1/elf2aout.1.gz

	# 20200204: simple_httpd removed
	OLD_FILES+=usr/sbin/simple_httpd

	# 20200127: vpo removed
	OLD_FILES+=usr/share/man/man4/imm.4.gz
	OLD_FILES+=usr/share/man/man4/vpo.4.gz

	# 20200104: gcc libssp removed
	OLD_FILES+=usr/include/ssp/ssp.h
	OLD_FILES+=usr/include/ssp/stdio.h
	OLD_FILES+=usr/include/ssp/string.h
	OLD_FILES+=usr/include/ssp/unistd.h
	OLD_DIRS+=usr/include/ssp

	# 20191229: GEOM_SCHED class and gsched tool removed
	OLD_LIBS+=lib/geom/geom_sched.so
	OLD_FILES+=sbin/gsched
	OLD_FILES+=usr/share/man/man8/gsched.8.gz

	# 20191222: new clang import which bumps version from 9.0.0 to 9.0.1.
	OLD_FILES+=usr/lib/clang/9.0.0/include/cuda_wrappers/algorithm
	OLD_FILES+=usr/lib/clang/9.0.0/include/cuda_wrappers/complex
	OLD_FILES+=usr/lib/clang/9.0.0/include/cuda_wrappers/new
	OLD_DIRS+=usr/lib/clang/9.0.0/include/cuda_wrappers
	OLD_FILES+=usr/lib/clang/9.0.0/include/openmp_wrappers/__clang_openmp_math.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/openmp_wrappers/__clang_openmp_math_declares.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/openmp_wrappers/cmath
	OLD_FILES+=usr/lib/clang/9.0.0/include/openmp_wrappers/math.h
	OLD_DIRS+=usr/lib/clang/9.0.0/include/openmp_wrappers
	OLD_FILES+=usr/lib/clang/9.0.0/include/ppc_wrappers/emmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/ppc_wrappers/mm_malloc.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/ppc_wrappers/mmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/ppc_wrappers/xmmintrin.h
	OLD_DIRS+=usr/lib/clang/9.0.0/include/ppc_wrappers
	OLD_FILES+=usr/lib/clang/9.0.0/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/sanitizer/hwasan_interface.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/sanitizer/netbsd_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/sanitizer/scudo_interface.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/sanitizer/tsan_interface.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/sanitizer/tsan_interface_atomic.h
	OLD_DIRS+=usr/lib/clang/9.0.0/include/sanitizer
	OLD_FILES+=usr/lib/clang/9.0.0/include/__clang_cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/__clang_cuda_cmath.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/__clang_cuda_complex_builtins.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/__clang_cuda_device_functions.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/__clang_cuda_intrinsics.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/__clang_cuda_libdevice_declares.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/__clang_cuda_math_forward_declares.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/__clang_cuda_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/altivec.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/arm64intr.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/arm_fp16.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/armintr.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512bf16intrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512bitalgintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512ifmaintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512ifmavlintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512pfintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512vbmi2intrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512vbmiintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512vbmivlintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512vlbf16intrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512vlbitalgintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512vlcdintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512vlvbmi2intrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512vlvnniintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512vlvp2intersectintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512vnniintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512vp2intersectintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512vpopcntdqintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avx512vpopcntdqvlintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/cetintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/cldemoteintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/clflushoptintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/clwbintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/clzerointrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/cpuid.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/enqcmdintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/gfniintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/immintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/invpcidintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/lwpintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/module.modulemap
	OLD_FILES+=usr/lib/clang/9.0.0/include/movdirintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/msa.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/mwaitxintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/opencl-c-base.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/opencl-c.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/pconfigintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/pkuintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/ptwriteintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/sgxintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/vadefs.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/vaesintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/vpclmulqdqintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/waitpkgintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/wbnoinvdintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/xsavecintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/xsaveintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/xsaveoptintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/xsavesintrin.h
	OLD_FILES+=usr/lib/clang/9.0.0/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/9.0.0/include
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan-aarch64.so
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan-arm.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan-arm.so
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan-armhf.so
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan-i386.so
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan-preinit-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan-preinit-arm.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan-preinit-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan-x86_64.so
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan_cxx-arm.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan_cxx-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.cfi-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.cfi-arm.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.cfi-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.cfi-i386.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.cfi-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.cfi_diag-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.cfi_diag-arm.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.cfi_diag-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.cfi_diag-i386.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.cfi_diag-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.dd-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.dd-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.fuzzer-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.fuzzer-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.fuzzer_no_main-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.fuzzer_no_main-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.msan-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.msan-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.msan_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.msan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.profile-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.profile-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.profile-powerpc.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.profile-powerpc64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.safestack-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.stats-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.stats-arm.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.stats-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.stats-i386.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.stats-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.stats_client-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.stats_client-arm.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.stats_client-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.stats_client-i386.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.stats_client-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.tsan-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.tsan-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.tsan_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.tsan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.ubsan_minimal-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.ubsan_minimal-arm.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.ubsan_minimal-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.ubsan_minimal-i386.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.ubsan_minimal-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.ubsan_standalone-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.ubsan_standalone-arm.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.ubsan_standalone-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-arm.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.xray-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.xray-arm.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.xray-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.xray-basic-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.xray-basic-arm.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.xray-basic-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.xray-basic-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.xray-fdr-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.xray-fdr-arm.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.xray-fdr-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.xray-fdr-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.xray-profiling-aarch64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.xray-profiling-arm.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.xray-profiling-armhf.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.xray-profiling-x86_64.a
	OLD_FILES+=usr/lib/clang/9.0.0/lib/freebsd/libclang_rt.xray-x86_64.a
	OLD_DIRS+=usr/lib/clang/9.0.0/lib/freebsd
	OLD_DIRS+=usr/lib/clang/9.0.0/lib
	OLD_DIRS+=usr/lib/clang/9.0.0
	# 20191221: Update libpcap from 1.9.0 to 1.9.1
	OLD_FILES+=usr/share/man/man3/pcap_set_immediate_mode.3.gz
	OLD_FILES+=usr/share/man/man3/pcap_set_protocol.3.gz
	# 20191214: Removal of sranddev(3)
	OLD_FILES+=usr/share/man/man3/sranddev.3.gz
	# 20191213: Renamed (BIT\|CPU)_NAND to (BIT\|CPU)_ANDNOT
	OLD_FILES+=usr/share/man/man9/BIT_NAND.9.gz
	OLD_FILES+=usr/share/man/man9/CPU_NAND.9.gz
	# 20191213: remove timeout(9)
	OLD_FILES+=usr/share/man/man9/callout_handle_init.9.gz
	OLD_FILES+=usr/share/man/man9/timeout.9.gz
	OLD_FILES+=usr/share/man/man9/untimeout.9.gz
	# 20191128: Removal of trm(4)
	OLD_FILES+=usr/share/man/man4/trm.4.gz
	# 20191121: Removal of sio(4)
	OLD_FILES+=usr/share/man/man4/sio.4.gz
	# 20191105: picobsd(8), et al, removed.
	OLD_FILES+=usr/share/man/man8/picobsd.8.gz
	# 20191017: taskqueue_start_threads_pinned became taskqueue_start_threads_cpuset
	OLD_FILES+=usr/share/man/man9/taskqueue_start_threads_pinned.9.gz
	# 20191009: new clang import which bumps version from 8.0.1 to 9.0.0.
	OLD_FILES+=usr/lib/clang/8.0.1/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/sanitizer/esan_interface.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/sanitizer/hwasan_interface.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/sanitizer/netbsd_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/sanitizer/scudo_interface.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/sanitizer/tsan_interface.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/sanitizer/tsan_interface_atomic.h
	OLD_DIRS+=usr/lib/clang/8.0.1/include/sanitizer
	OLD_FILES+=usr/lib/clang/8.0.1/include/__clang_cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/__clang_cuda_cmath.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/__clang_cuda_complex_builtins.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/__clang_cuda_device_functions.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/__clang_cuda_intrinsics.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/__clang_cuda_libdevice_declares.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/__clang_cuda_math_forward_declares.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/__clang_cuda_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/altivec.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/arm64intr.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/arm_fp16.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/armintr.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512bitalgintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512ifmaintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512ifmavlintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512pfintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512vbmi2intrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512vbmiintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512vbmivlintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512vlbitalgintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512vlcdintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512vlvbmi2intrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512vlvnniintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512vnniintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512vpopcntdqintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avx512vpopcntdqvlintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/cetintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/cldemoteintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/clflushoptintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/clwbintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/clzerointrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/cpuid.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/gfniintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/immintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/invpcidintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/lwpintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/module.modulemap
	OLD_FILES+=usr/lib/clang/8.0.1/include/movdirintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/msa.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/mwaitxintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/opencl-c.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/pconfigintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/pkuintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/ptwriteintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/sgxintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/vadefs.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/vaesintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/vpclmulqdqintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/waitpkgintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/wbnoinvdintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/xsavecintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/xsaveintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/xsaveoptintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/xsavesintrin.h
	OLD_FILES+=usr/lib/clang/8.0.1/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/8.0.1/include
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.asan-i386.so
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.asan-x86_64.so
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.msan-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.msan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.profile-aarch64.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.profile-armhf.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.stats-i386.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.stats-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.stats_client-i386.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.stats_client-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.tsan-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.tsan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.ubsan_minimal-i386.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.ubsan_minimal-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/8.0.1/lib/freebsd
	OLD_DIRS+=usr/lib/clang/8.0.1/lib
	OLD_DIRS+=usr/lib/clang/8.0.1
	# 20191009: libc++ 9.0.0 removed some experimental files
	OLD_FILES+=usr/include/c++/v1/experimental/any
	OLD_FILES+=usr/include/c++/v1/experimental/chrono
	OLD_FILES+=usr/include/c++/v1/experimental/numeric
	OLD_FILES+=usr/include/c++/v1/experimental/optional
	OLD_FILES+=usr/include/c++/v1/experimental/ratio
	OLD_FILES+=usr/include/c++/v1/experimental/string_view
	OLD_FILES+=usr/include/c++/v1/experimental/system_error
	OLD_FILES+=usr/include/c++/v1/experimental/tuple
	OLD_FILES+=usr/lib/libc++fs.a
	OLD_FILES+=usr/lib32/libc++fs.a
	# 20191003: Remove useless ZFS tests
	OLD_FILES+=usr/tests/sys/cddl/zfs/tests/cli_root/zpool_create/zpool_create_013_neg.ksh
	OLD_FILES+=usr/tests/sys/cddl/zfs/tests/cli_root/zpool_create/zpool_create_014_neg.ksh
	OLD_FILES+=usr/tests/sys/cddl/zfs/tests/cli_root/zpool_create/zpool_create_016_pos.ksh
	# 20190910: mklocale(1) and colldef(1) removed
	OLD_FILES+=usr/bin/mklocale
	OLD_FILES+=usr/share/man/man1/mklocale.1.gz
	OLD_FILES+=usr/bin/colldef
	OLD_FILES+=usr/share/man/man1/colldef.1.gz
	# 20190909: vm_map_unwire(9) removed
	OLD_FILES+=usr/share/man/man9/vm_map_unwire.9.gz
	# 20190904: Remove boot1.efifat and gptboot.efifat (which never should have been)
	OLD_FILES+=boot/boot1.efifat
	OLD_FILES+=boot/gptboot.efifat
	# 20190903: pc-sysinstall(8) removed
	OLD_FILES+=usr/share/examples/pc-sysinstall/README
	OLD_FILES+=usr/share/examples/pc-sysinstall/pc-autoinstall.conf
	OLD_FILES+=usr/share/examples/pc-sysinstall/pcinstall.cfg.fbsd-netinstall
	OLD_FILES+=usr/share/examples/pc-sysinstall/pcinstall.cfg.geli
	OLD_FILES+=usr/share/examples/pc-sysinstall/pcinstall.cfg.gmirror
	OLD_FILES+=usr/share/examples/pc-sysinstall/pcinstall.cfg.netinstall
	OLD_FILES+=usr/share/examples/pc-sysinstall/pcinstall.cfg.restore
	OLD_FILES+=usr/share/examples/pc-sysinstall/pcinstall.cfg.rsync
	OLD_FILES+=usr/share/examples/pc-sysinstall/pcinstall.cfg.upgrade
	OLD_FILES+=usr/share/examples/pc-sysinstall/pcinstall.cfg.zfs
	OLD_FILES+=usr/share/man/man8/pc-sysinstall.8.gz
	OLD_FILES+=usr/share/pc-sysinstall/backend-partmanager/create-part.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-partmanager/delete-part.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/detect-emulation.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/detect-laptop.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/detect-nics.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/disk-info.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/disk-list.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/disk-part.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/enable-net.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/get-packages.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/list-components.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/list-config.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/list-mirrors.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/list-packages.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/list-rsync-backups.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/list-tzones.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/query-langs.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/send-logs.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/setup-ssh-keys.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/set-mirror.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/sys-mem.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/test-live.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/test-netup.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/update-part-list.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/xkeyboard-layouts.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/xkeyboard-models.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/xkeyboard-variants.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-bsdlabel.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-cleanup.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-disk.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-extractimage.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-ftp.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-installcomponents.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-installpackages.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-localize.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-mountdisk.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-mountoptical.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-networking.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-newfs.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-parse.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-packages.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-runcommands.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-unmount.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-upgrade.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions-users.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/functions.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/installimage.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/parseconfig.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend/startautoinstall.sh
	OLD_FILES+=usr/share/pc-sysinstall/conf/avail-langs
	OLD_FILES+=usr/share/pc-sysinstall/conf/exclude-from-upgrade
	OLD_FILES+=usr/share/pc-sysinstall/conf/license/bsd-en.txt
	OLD_FILES+=usr/share/pc-sysinstall/conf/license/intel-en.txt
	OLD_FILES+=usr/share/pc-sysinstall/conf/license/nvidia-en.txt
	OLD_FILES+=usr/share/pc-sysinstall/conf/pc-sysinstall.conf
	OLD_FILES+=usr/share/pc-sysinstall/doc/help-disk-list
	OLD_FILES+=usr/share/pc-sysinstall/doc/help-disk-size
	OLD_FILES+=usr/share/pc-sysinstall/doc/help-index
	OLD_FILES+=usr/share/pc-sysinstall/doc/help-start-autoinstall
	OLD_FILES+=usr/sbin/pc-sysinstall
	OLD_DIRS+=usr/share/examples/pc-sysinstall
	OLD_DIRS+=usr/share/pc-sysinstall/backend
	OLD_DIRS+=usr/share/pc-sysinstall/backend-partmanager
	OLD_DIRS+=usr/share/pc-sysinstall/backend-query
	OLD_DIRS+=usr/share/pc-sysinstall/conf/license
	OLD_DIRS+=usr/share/pc-sysinstall/conf
	OLD_DIRS+=usr/share/pc-sysinstall/doc
	OLD_DIRS+=usr/share/pc-sysinstall
	# 20190825: zlib 1.0.4 removed from kernel
	OLD_FILES+=usr/include/sys/zlib.h
	OLD_FILES+=usr/include/sys/zutil.h
	# 20190817: pft_ping.py and sniffer.py moved to /usr/tests/sys/netpfil/common
	OLD_FILES+=usr/tests/sys/netpfil/pf/sniffer.py
	OLD_FILES+=usr/tests/sys/netpfil/pf/pft_ping.py
	# 20190816: dir.h removed from POSIX
	OLD_FILES+=usr/include/sys/dir.h
	# 20190813: deprecated GEOM classes removed
	OLD_FILES+=usr/share/man/man4/geom_fox.4.gz
	# 20190729: gzip'ed a.out support removed
	OLD_FILES+=usr/include/sys/inflate.h
	# 20190722: cap_random(3) removed
	OLD_LIBS+=lib/casper/libcap_random.so.1
	OLD_FILES+=usr/include/casper/cap_random.h
	OLD_LIBS+=usr/lib/libcap_random.so
	OLD_FILES+=usr/share/man/man3/libcap_random.3.gz
	OLD_FILES+=usr/share/man/man3/cap_random.3.gz
	OLD_FILES+=usr/share/man/man3/cap_random_buf.3.gz
	# 20190708: vm_page_hold() and _unhold() removed
	OLD_FILES+=usr/share/man/man9/vm_page_hold.9.gz
	OLD_FILES+=usr/share/man/man9/vm_page_unhold.9.gz
	# 20190625: Remove NAND and NANDFS support
	OLD_FILES+=usr/share/man/man4/nand.4.gz
	OLD_FILES+=usr/share/man/man4/nandsim.4.gz
	# 20190618: sys/capability.h removed (sys/capsicum.h is the one to use)
	OLD_FILES+=usr/include/sys/capability.h
	# 20190615: sys/pwm.h renamed to dev/pwmc.h
	OLD_FILES+=usr/include/sys/pwm.h
	# 20190612: new clang import which bumps version from 8.0.0 to 8.0.1.
	OLD_FILES+=usr/lib/clang/8.0.0/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/sanitizer/esan_interface.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/sanitizer/hwasan_interface.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/sanitizer/netbsd_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/sanitizer/scudo_interface.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/sanitizer/tsan_interface.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/sanitizer/tsan_interface_atomic.h
	OLD_DIRS+=usr/lib/clang/8.0.0/include/sanitizer
	OLD_FILES+=usr/lib/clang/8.0.0/include/__clang_cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/__clang_cuda_cmath.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/__clang_cuda_complex_builtins.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/__clang_cuda_device_functions.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/__clang_cuda_intrinsics.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/__clang_cuda_libdevice_declares.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/__clang_cuda_math_forward_declares.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/__clang_cuda_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/altivec.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/arm64intr.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/arm_fp16.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/armintr.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512bitalgintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512ifmaintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512ifmavlintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512pfintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512vbmi2intrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512vbmiintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512vbmivlintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512vlbitalgintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512vlcdintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512vlvbmi2intrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512vlvnniintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512vnniintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512vpopcntdqintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avx512vpopcntdqvlintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/cetintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/cldemoteintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/clflushoptintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/clwbintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/clzerointrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/cpuid.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/gfniintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/immintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/invpcidintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/lwpintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/module.modulemap
	OLD_FILES+=usr/lib/clang/8.0.0/include/movdirintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/msa.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/mwaitxintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/opencl-c.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/pconfigintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/pkuintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/ptwriteintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/sgxintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/vadefs.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/vaesintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/vpclmulqdqintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/waitpkgintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/wbnoinvdintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/xsavecintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/xsaveintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/xsaveoptintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/xsavesintrin.h
	OLD_FILES+=usr/lib/clang/8.0.0/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/8.0.0/include
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.asan-i386.so
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.asan-x86_64.so
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.msan-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.msan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.profile-armhf.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.stats-i386.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.stats-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.stats_client-i386.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.stats_client-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.tsan-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.tsan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.ubsan_minimal-i386.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.ubsan_minimal-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/8.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/8.0.0/lib/freebsd
	OLD_DIRS+=usr/lib/clang/8.0.0/lib
	OLD_DIRS+=usr/lib/clang/8.0.0
	# 20190523: Remove obsolete kgzip and support files
	OLD_FILES+=usr/sbin/kgzip
	OLD_FILES+=usr/lib/kgzldr.o
	OLD_FILES+=usr/share/man/man8/kgzip.8.gz
	# 20190517: Remove obsolete 10 and 10/100 ethernet drivers.
	OLD_FILES+=usr/share/man/man4/bm.4.gz
	OLD_FILES+=usr/share/man/man4/cs.4.gz
	OLD_FILES+=usr/share/man/man4/de.4.gz
	OLD_FILES+=usr/share/man/man4/if_de.4.gz
	OLD_FILES+=usr/share/man/man4/ed.4.gz
	OLD_FILES+=usr/share/man/man4/if_ed.4.gz
	OLD_FILES+=usr/share/man/man4/ep.4.gz
	OLD_FILES+=usr/share/man/man4/ex.4.gz
	OLD_FILES+=usr/share/man/man4/fe.4.gz
	OLD_FILES+=usr/share/man/man4/pcn.4.gz
	OLD_FILES+=usr/share/man/man4/if_pcn.4.gz
	OLD_FILES+=usr/share/man/man4/sf.4.gz
	OLD_FILES+=usr/share/man/man4/if_sf.4.gz
	OLD_FILES+=usr/share/man/man4/sn.4.gz
	OLD_FILES+=usr/share/man/man4/if_sn.4.gz
	OLD_FILES+=usr/share/man/man4/tl.4.gz
	OLD_FILES+=usr/share/man/man4/if_tl.4.gz
	OLD_FILES+=usr/share/man/man4/tx.4.gz
	OLD_FILES+=usr/share/man/man4/if_tx.4.gz
	OLD_FILES+=usr/share/man/man4/txp.4.gz
	OLD_FILES+=usr/share/man/man4/if_txp.4.gz
	OLD_FILES+=usr/share/man/man4/vx.4.gz
	OLD_FILES+=usr/share/man/man4/wb.4.gz
	OLD_FILES+=usr/share/man/man4/if_wb.4.gz
	OLD_FILES+=usr/share/man/man4/xe.4.gz
	OLD_FILES+=usr/share/man/man4/if_xe.4.gz
	# 20190513: libcap_sysctl interface change
	OLD_LIBS+=lib/casper/libcap_sysctl.so.1
	# 20190509: tests/sys/opencrypto requires the net/py-dpkt package.
	OLD_FILES+=usr/tests/sys/opencrypto/dpkt.py
	OLD_FILES+=usr/tests/sys/opencrypto/dpkt.pyc
	# 20190304: new libc++ import which bumps version from 7.0.1 to 8.0.0.
	OLD_FILES+=usr/include/c++/v1/experimental/dynarray
	# 20190304: new clang import which bumps version from 7.0.1 to 8.0.0.
	OLD_FILES+=usr/lib/clang/7.0.1/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/sanitizer/esan_interface.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/sanitizer/hwasan_interface.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/sanitizer/netbsd_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/sanitizer/scudo_interface.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/sanitizer/tsan_interface.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/sanitizer/tsan_interface_atomic.h
	OLD_DIRS+=usr/lib/clang/7.0.1/include/sanitizer
	OLD_FILES+=usr/lib/clang/7.0.1/include/__clang_cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/__clang_cuda_cmath.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/__clang_cuda_complex_builtins.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/__clang_cuda_device_functions.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/__clang_cuda_intrinsics.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/__clang_cuda_libdevice_declares.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/__clang_cuda_math_forward_declares.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/__clang_cuda_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/altivec.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/arm64intr.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/arm_fp16.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/armintr.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512bitalgintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512ifmaintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512ifmavlintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512pfintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512vbmi2intrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512vbmiintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512vbmivlintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512vlbitalgintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512vlcdintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512vlvbmi2intrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512vlvnniintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512vnniintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512vpopcntdqintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avx512vpopcntdqvlintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/cetintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/cldemoteintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/clflushoptintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/clwbintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/clzerointrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/cpuid.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/gfniintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/immintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/invpcidintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/lwpintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/module.modulemap
	OLD_FILES+=usr/lib/clang/7.0.1/include/movdirintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/msa.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/mwaitxintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/opencl-c.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/pconfigintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/pkuintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/ptwriteintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/sgxintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/vadefs.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/vaesintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/vpclmulqdqintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/waitpkgintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/wbnoinvdintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/xsavecintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/xsaveintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/xsaveoptintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/xsavesintrin.h
	OLD_FILES+=usr/lib/clang/7.0.1/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/7.0.1/include
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.asan-i386.so
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.asan-x86_64.so
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.msan-x86_64.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.msan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.profile-armhf.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.stats-i386.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.stats-x86_64.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.stats_client-i386.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.stats_client-x86_64.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.tsan-x86_64.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.tsan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.ubsan_minimal-i386.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.ubsan_minimal-x86_64.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/7.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/7.0.1/lib/freebsd
	OLD_DIRS+=usr/lib/clang/7.0.1/lib
	OLD_DIRS+=usr/lib/clang/7.0.1
	# 20190227: rename seq.h to seqc.h
	OLD_FILES+=usr/include/sys/seq.h
	# 20190222: libifconfig made INTERNALLIB
	OLD_FILES+=usr/lib/libprivateifconfig.a
	OLD_FILES+=usr/lib/libprivateifconfig_p.a
	OLD_FILES+=usr/lib32/libprivateifconfig.a
	OLD_FILES+=usr/lib32/libprivateifconfig_p.a
	# 20190131: pfil(9) changed
	OLD_FILES+=usr/share/man/man9/pfil_hook_get.9.gz
	OLD_FILES+=usr/share/man/man9/pfil_rlock.9.gz
	OLD_FILES+=usr/share/man/man9/pfil_runlock.9.gz
	OLD_FILES+=usr/share/man/man9/pfil_wlock.9.gz
	OLD_FILES+=usr/share/man/man9/pfil_wunlock.9.gz
	# 20190126: adv(4) / adw(4) removal
	OLD_FILES+=usr/share/man/man4/adv.4.gz
	OLD_FILES+=usr/share/man/man4/adw.4.gz
	# 20190123: nonexistant cred_update_thread(9) removed
	OLD_FILES+=usr/share/man/man9/cred_update_thread.9.gz
	# 20190114: old pbuf allocator removed
	OLD_FILES+=usr/share/man/man9/getpbuf.9.gz
	OLD_FILES+=usr/share/man/man9/pbuf.9.gz
	OLD_FILES+=usr/share/man/man9/relpbuf.9.gz
	OLD_FILES+=usr/share/man/man9/trypbuf.9.gz
	# 20181219: ibcs removal
	OLD_FILES+=usr/share/examples/ibcs2/hello.uu
	OLD_FILES+=usr/share/examples/ibcs2/README
	OLD_DIRS+=usr/share/examples/ibcs2
	# 20181215: Migration of CTM to ports
	OLD_FILES+=usr/sbin/ctm
	OLD_FILES+=usr/sbin/ctm_dequeue
	OLD_FILES+=usr/sbin/ctm_rmail
	OLD_FILES+=usr/sbin/ctm_smail
	OLD_FILES+=usr/share/man/man1/ctm.1.gz
	OLD_FILES+=usr/share/man/man1/ctm_dequeue.1.gz
	OLD_FILES+=usr/share/man/man1/ctm_rmail.1.gz
	OLD_FILES+=usr/share/man/man1/ctm_smail.1.gz
	OLD_FILES+=usr/share/man/man5/ctm.5.gz
	# 20181214: Remove timed files
	OLD_FILES+=etc/rc.d/timed
	OLD_FILES+=usr/sbin/timed
	OLD_FILES+=usr/sbin/timedc
	OLD_FILES+=usr/share/man/man8/timed.8.gz
	OLD_FILES+=usr/share/man/man8/timedc.8.gz
	# 20181211: new clang import which bumps version from 6.0.1 to 7.0.1.
	OLD_FILES+=usr/lib/clang/6.0.1/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/sanitizer/esan_interface.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/sanitizer/hwasan_interface.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/sanitizer/scudo_interface.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/sanitizer/tsan_interface.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/sanitizer/tsan_interface_atomic.h
	OLD_DIRS+=usr/lib/clang/6.0.1/include/sanitizer
	OLD_FILES+=usr/lib/clang/6.0.1/include/__clang_cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/__clang_cuda_cmath.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/__clang_cuda_complex_builtins.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/__clang_cuda_intrinsics.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/__clang_cuda_math_forward_declares.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/__clang_cuda_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/altivec.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/arm64intr.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/armintr.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512bitalgintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512ifmaintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512ifmavlintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512pfintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512vbmi2intrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512vbmiintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512vbmivlintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512vlbitalgintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512vlcdintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512vlvbmi2intrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512vlvnniintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512vnniintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512vpopcntdqintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avx512vpopcntdqvlintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/cetintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/clflushoptintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/clwbintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/clzerointrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/cpuid.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/gfniintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/immintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/lwpintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/module.modulemap
	OLD_FILES+=usr/lib/clang/6.0.1/include/msa.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/mwaitxintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/opencl-c.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/pkuintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/vadefs.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/vaesintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/vpclmulqdqintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/xsavecintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/xsaveintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/xsaveoptintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/xsavesintrin.h
	OLD_FILES+=usr/lib/clang/6.0.1/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/6.0.1/include
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.asan-i386.so
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.asan-x86_64.so
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.profile-armhf.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.stats-i386.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.stats-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.stats_client-i386.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.stats_client-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.tsan-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.tsan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.ubsan_minimal-i386.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.ubsan_minimal-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/6.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/6.0.1/lib/freebsd
	OLD_DIRS+=usr/lib/clang/6.0.1/lib
	OLD_DIRS+=usr/lib/clang/6.0.1
	# 20181116: Rename test file.
	OLD_FILES+=usr/tests/sys/netinet/reuseport_lb
	# 20181113: libufs version bumped to 7.
	OLD_LIBS+=lib/libufs.so.6
	OLD_LIBS+=usr/lib32/libufs.so.6
	# 20181112: Cleanup old libcap_dns.
	OLD_LIBS+=lib/casper/libcap_dns.so.1
	OLD_LIBS+=usr/lib32/libcap_dns.so.1
	# 20181030: malloc_domain(9) KPI change
	OLD_FILES+=usr/share/man/man9/malloc_domain.9.gz
	# 20181026: joy(4) removal
	OLD_FILES+=usr/share/man/man4/joy.4.gz
	# 20181025: OpenSSL libraries version bump to avoid conflict with ports
	OLD_LIBS+=lib/libcrypto.so.9
	OLD_LIBS+=usr/lib/libssl.so.9
	OLD_LIBS+=usr/lib32/libcrypto.so.9
	OLD_LIBS+=usr/lib32/libssl.so.9
	# 20181022: aha(4) removal
	OLD_FILES+=usr/share/man/man4/aha.4.gz
	# 20181022: dpt(4) removal
	OLD_FILES+=usr/share/man/man4/dpt.4.gz
	# 20181022: ncr(4) removal
	OLD_FILES+=usr/share/man/man4/ncr.4.gz
	# 20181022: ncv(4) removal
	OLD_FILES+=usr/share/man/man4/ncv.4.gz
	# 20181022: nsp(4) removal
	OLD_FILES+=usr/share/man/man4/nsp.4.gz
	# 20181022: stg(4) removal
	OLD_FILES+=usr/share/man/man4/stg.4.gz
	# 20181021: mse(4) removal
	OLD_FILES+=usr/share/man/man4/mse.4.gz
	# 20181015: Stale libcasper(3) files following r329452
	OLD_LIBS+=lib/casper/libcap_sysctl.so.0
	OLD_LIBS+=lib/casper/libcap_grp.so.0
	OLD_LIBS+=lib/casper/libcap_pwd.so.0
	OLD_LIBS+=lib/casper/libcap_random.so.0
	OLD_LIBS+=lib/casper/libcap_dns.so.0
	OLD_LIBS+=lib/casper/libcap_syslog.so.0
	OLD_LIBS+=usr/lib32/libcap_sysctl.so.0
	OLD_LIBS+=usr/lib32/libcap_grp.so.0
	OLD_LIBS+=usr/lib32/libcap_pwd.so.0
	OLD_LIBS+=usr/lib32/libcap_random.so.0
	OLD_LIBS+=usr/lib32/libcap_dns.so.0
	OLD_LIBS+=usr/lib32/libcap_syslog.so.0
	# 20181012: rename of ixlv(4) to iavf(4)
	OLD_FILES+=usr/share/man/man4/if_ixlv.4.gz
	OLD_FILES+=usr/share/man/man4/ixlv.4.gz
	# 20181009: OpenSSL 1.1.1
	OLD_FILES+=usr/include/openssl/des_old.h
	OLD_FILES+=usr/include/openssl/dso.h
	OLD_FILES+=usr/include/openssl/krb5_asn.h
	OLD_FILES+=usr/include/openssl/kssl.h
	OLD_FILES+=usr/include/openssl/pqueue.h
	OLD_FILES+=usr/include/openssl/ssl23.h
	OLD_FILES+=usr/include/openssl/ui_compat.h
	OLD_FILES+=usr/lib/debug/usr/lib/engines/lib4758cca.so.debug
	OLD_FILES+=usr/lib/debug/usr/lib/engines/libaep.so.debug
	OLD_FILES+=usr/lib/debug/usr/lib/engines/libatalla.so.debug
	OLD_FILES+=usr/lib/debug/usr/lib/engines/libcapi.so.debug
	OLD_FILES+=usr/lib/debug/usr/lib/engines/libchil.so.debug
	OLD_FILES+=usr/lib/debug/usr/lib/engines/libcswift.so.debug
	OLD_FILES+=usr/lib/debug/usr/lib/engines/libgost.so.debug
	OLD_FILES+=usr/lib/debug/usr/lib/engines/libnuron.so.debug
	OLD_FILES+=usr/lib/debug/usr/lib/engines/libsureware.so.debug
	OLD_FILES+=usr/lib/debug/usr/lib/engines/libubsec.so.debug
	OLD_FILES+=usr/share/openssl/man/man1/dss1.1.gz
	OLD_FILES+=usr/share/openssl/man/man1/md2.1.gz
	OLD_FILES+=usr/share/openssl/man/man1/md4.1.gz
	OLD_FILES+=usr/share/openssl/man/man1/md5.1.gz
	OLD_FILES+=usr/share/openssl/man/man1/mdc2.1.gz
	OLD_FILES+=usr/share/openssl/man/man1/ripemd160.1.gz
	OLD_FILES+=usr/share/openssl/man/man1/sha.1.gz
	OLD_FILES+=usr/share/openssl/man/man1/sha1.1.gz
	OLD_FILES+=usr/share/openssl/man/man1/sha224.1.gz
	OLD_FILES+=usr/share/openssl/man/man1/sha256.1.gz
	OLD_FILES+=usr/share/openssl/man/man1/sha384.1.gz
	OLD_FILES+=usr/share/openssl/man/man1/sha512.1.gz
	OLD_FILES+=usr/share/openssl/man/man1/x509v3_config.1.gz
	OLD_FILES+=usr/share/openssl/man/man3/ASN1_STRING_length_set.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BIO_get_conn_int_port.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BIO_get_conn_ip.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BIO_set.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BIO_set_conn_int_port.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BIO_set_conn_ip.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BN_BLINDING_get_thread_id.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BN_BLINDING_set_thread_id.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BN_BLINDING_thread_id.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BN_CTX_init.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BN_MONT_CTX_init.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BN_RECP_CTX_init.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BN_init.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BUF_memdup.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BUF_memdup.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BUF_strdup.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BUF_strlcat.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BUF_strlcpy.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/BUF_strndup.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/CMS_set1_signer_cert.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/CRYPTO_THREADID_cmp.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/CRYPTO_THREADID_cpy.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/CRYPTO_THREADID_current.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/CRYPTO_THREADID_get_callback.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/CRYPTO_THREADID_hash.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/CRYPTO_THREADID_set_callback.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/CRYPTO_destroy_dynlockid.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/CRYPTO_get_new_dynlockid.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/CRYPTO_lock.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/CRYPTO_num_locks.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/CRYPTO_set_dynlock_create_callback.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/CRYPTO_set_dynlock_destroy_callback.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/CRYPTO_set_dynlock_lock_callback.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/CRYPTO_set_locking_callback.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/DES_ede3_cbcm_encrypt.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/DES_enc_read.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/DES_enc_write.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EC_KEY_get_key_method_data.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EC_KEY_insert_key_method_data.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EC_POINT_set_Jprojective_coordinates.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/ERR_load_UI_strings.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EVP_CIPHER_CTX_cleanup.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EVP_CIPHER_CTX_init.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EVP_MAX_MD_SIZE.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EVP_MD_CTX_cleanup.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EVP_MD_CTX_create.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EVP_MD_CTX_destroy.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EVP_MD_CTX_init.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EVP_PKEVP_PKEY_CTX_set_app_data.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EVP_PKEY_CTX_set_rsa_rsa_keygen_bits.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EVP_PKEY_get_default_digest.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EVP_dss.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EVP_dss1.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EVP_sha.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/HMAC_CTX_cleanup.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/HMAC_CTX_init.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/HMAC_cleanup.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/OPENSSL_ia32cap_loc.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/PEM.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/RAND_SSLeay.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/RSA_PKCS1_SSLeay.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/RSA_null_method.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_CTX_get_ex_new_index.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_CTX_need_tmp_rsa.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_CTX_set_custom_cli_ext.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_CTX_set_default_read_ahead.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_CTX_set_ecdh_auto.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_CTX_set_tmp_rsa.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_CTX_set_tmp_rsa_callback.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_SESSION_get_ex_new_index.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_add_session.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_flush_sessions.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_get_accept_state.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_get_ex_new_index.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_get_msg_callback_arg.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_need_tmp_rsa.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_remove_session.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_set_ecdh_auto.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_set_tmp_rsa.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSL_set_tmp_rsa_callback.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSLeay.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSLeay_add_ssl_algorithms.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSLeay_version.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSLv2_client_method.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSLv2_method.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/SSLv2_server_method.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/X509_STORE_CTX_set_chain.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/X509_STORE_CTX_trusted_stack.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bio.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/blowfish.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_add_words.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_check_top.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_cmp_words.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_div_words.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_dump.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_expand.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_expand2.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_fix_top.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_internal.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_mul_add_words.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_mul_comba4.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_mul_comba8.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_mul_high.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_mul_low_normal.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_mul_low_recursive.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_mul_normal.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_mul_part_recursive.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_mul_recursive.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_mul_words.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_print.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_set_high.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_set_low.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_set_max.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_sqr_comba4.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_sqr_comba8.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_sqr_normal.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_sqr_recursive.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_sqr_words.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_sub_words.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/bn_wexpand.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/buffer.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/crypto.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/d2i_ECPKParameters_bio.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/d2i_ECPKParameters_fp.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/d2i_ECPrivate_key.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/d2i_Netscape_RSA.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/d2i_PKCS8PrivateKey.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/d2i_Private_key.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/d2i_X509_bio.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/d2i_X509_fp.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/des.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/des_read_2passwords.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/des_read_password.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/des_read_pw.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/des_read_pw_string.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/dh.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/dsa.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/ec.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/ecdsa.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/engine.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/err.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/evp.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/hmac.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/i2d_ECPKParameters_bio.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/i2d_ECPKParameters_fp.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/i2d_Netscape_RSA.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/i2d_X509_bio.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/i2d_X509_fp.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/lh_delete.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/lh_doall.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/lh_doall_arg.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/lh_error.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/lh_free.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/lh_insert.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/lh_new.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/lh_node_stats.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/lh_node_stats_bio.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/lh_node_usage_stats.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/lh_node_usage_stats_bio.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/lh_retrieve.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/lh_stats.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/lh_stats_bio.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/lhash.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/md5.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/mdc2.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/pem.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/rand.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/rc4.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/ripemd.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/rsa.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/sha.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/ssl.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/threads.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/ui.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/ui_compat.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/x509.3.gz
	OLD_LIBS+=lib/libcrypto.so.8
	OLD_LIBS+=usr/lib/engines/lib4758cca.so
	OLD_LIBS+=usr/lib/engines/libaep.so
	OLD_LIBS+=usr/lib/engines/libatalla.so
	OLD_LIBS+=usr/lib/engines/libcapi.so
	OLD_LIBS+=usr/lib/engines/libchil.so
	OLD_LIBS+=usr/lib/engines/libcswift.so
	OLD_LIBS+=usr/lib/engines/libgost.so
	OLD_LIBS+=usr/lib/engines/libnuron.so
	OLD_LIBS+=usr/lib/engines/libsureware.so
	OLD_LIBS+=usr/lib/engines/libubsec.so
	OLD_LIBS+=usr/lib/libssl.so.8
	OLD_LIBS+=usr/lib32/libcrypto.so.8
	OLD_LIBS+=usr/lib32/lib4758cca.so
	OLD_LIBS+=usr/lib32/libaep.so
	OLD_LIBS+=usr/lib32/libatalla.so
	OLD_LIBS+=usr/lib32/libcapi.so
	OLD_LIBS+=usr/lib32/libchil.so
	OLD_LIBS+=usr/lib32/libcswift.so
	OLD_LIBS+=usr/lib32/libgost.so
	OLD_LIBS+=usr/lib32/libnuron.so
	OLD_LIBS+=usr/lib32/libsureware.so
	OLD_LIBS+=usr/lib32/libubsec.so
	OLD_LIBS+=usr/lib32/libssl.so.8
	# 20180824: libbe(3) SHLIBDIR fixed to reflect correct location
	OLD_LIBS+=usr/lib/libbe.so.1
	# 20180819: Remove deprecated arc4random(3) stir/addrandom interfaces
	OLD_FILES+=usr/share/man/man3/arc4random_addrandom.3.gz
	OLD_FILES+=usr/share/man/man3/arc4random_stir.3.gz
	# 20180819: send-pr(1) placeholder removal
	OLD_FILES+=usr/bin/send-pr
	# 20180801: jedec_ts(4) removed
	OLD_FILES+=usr/share/man/man4/jedec_ts.4.gz
	# 20180725: Cleanup old libcasper.so.0
	OLD_LIBS+=lib/libcasper.so.0
	OLD_LIBS+=usr/lib32/libcasper.so.0
	# 20180722: indent(1) option renamed, test files follow
	OLD_FILES+=usr/bin/indent/tests/nsac.0
	OLD_FILES+=usr/bin/indent/tests/nsac.0.pro
	OLD_FILES+=usr/bin/indent/tests/nsac.0.stdout
	OLD_FILES+=usr/bin/indent/tests/sac.0
	OLD_FILES+=usr/bin/indent/tests/sac.0.pro
	OLD_FILES+=usr/bin/indent/tests/sac.0.stdout
	# 20180721: move of libmlx5.so.1 and libibverbs.so.1
	OLD_LIBS+=usr/lib/libmlx5.so.1
	OLD_LIBS+=usr/lib/libibverbs.so.1
	# 20180720: zfsloader.8 merged into loader.8
	OLD_FILES+=usr/share/man/man8/zfsloader.8.gz
	# 20180710: old numa cleanup
	OLD_FILES+=usr/include/sys/numa.h
	OLD_FILES+=usr/share/man/man2/numa_getaffinity.2.gz
	OLD_FILES+=usr/share/man/man2/numa_setaffinity.2.gz
	OLD_FILES+=usr/share/man/man1/numactl.1.gz
	OLD_FILES+=usr/bin/numactl
	# 20180630: new clang import which bumps version from 6.0.0 to 6.0.1.
	OLD_FILES+=usr/lib/clang/6.0.0/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/sanitizer/esan_interface.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/sanitizer/hwasan_interface.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/sanitizer/scudo_interface.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/sanitizer/tsan_interface.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/sanitizer/tsan_interface_atomic.h
	OLD_DIRS+=usr/lib/clang/6.0.0/include/sanitizer
	OLD_FILES+=usr/lib/clang/6.0.0/include/__clang_cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/__clang_cuda_cmath.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/__clang_cuda_complex_builtins.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/__clang_cuda_intrinsics.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/__clang_cuda_math_forward_declares.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/__clang_cuda_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/altivec.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/arm64intr.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/armintr.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512bitalgintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512ifmaintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512ifmavlintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512pfintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512vbmi2intrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512vbmiintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512vbmivlintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512vlbitalgintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512vlcdintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512vlvbmi2intrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512vlvnniintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512vnniintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512vpopcntdqintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avx512vpopcntdqvlintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/cetintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/clflushoptintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/clwbintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/clzerointrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/cpuid.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/gfniintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/immintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/lwpintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/module.modulemap
	OLD_FILES+=usr/lib/clang/6.0.0/include/msa.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/mwaitxintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/opencl-c.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/pkuintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/vadefs.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/vaesintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/vpclmulqdqintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/xsavecintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/xsaveintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/xsaveoptintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/xsavesintrin.h
	OLD_FILES+=usr/lib/clang/6.0.0/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/6.0.0/include
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.asan-i386.so
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.asan-x86_64.so
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.profile-armhf.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.stats-i386.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.stats-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.stats_client-i386.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.stats_client-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.tsan-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.tsan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.ubsan_minimal-i386.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.ubsan_minimal-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/6.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/6.0.0/lib/freebsd
	OLD_DIRS+=usr/lib/clang/6.0.0/lib
	OLD_DIRS+=usr/lib/clang/6.0.0
	# 20180615: asf(8) removed
	OLD_FILES+=usr/sbin/asf
	OLD_FILES+=usr/share/man/man8/asf.8.gz
	# 20180609: obsolete libc++ files missed from the 5.0.0 import
	OLD_FILES+=usr/include/c++/v1/__refstring
	OLD_FILES+=usr/include/c++/v1/__undef_min_max
	OLD_FILES+=usr/include/c++/v1/tr1/__refstring
	OLD_FILES+=usr/include/c++/v1/tr1/__undef_min_max
	# 20180607: remove nls support from grep
	OLD_FILES+=usr/share/nls/pt_BR.ISO8859-1/grep.cat
	OLD_FILES+=usr/share/nls/hu_HU.ISO8859-2/grep.cat
	OLD_FILES+=usr/share/nls/ja_JP.SJIS/grep.cat
	OLD_FILES+=usr/share/nls/ja_JP.eucJP/grep.cat
	OLD_FILES+=usr/share/nls/gl_ES.ISO8859-1/grep.cat
	OLD_FILES+=usr/share/nls/zh_CN.UTF-8/grep.cat
	OLD_FILES+=usr/share/nls/es_ES.ISO8859-1/grep.cat
	OLD_FILES+=usr/share/nls/ru_RU.KOI8-R/grep.cat
	OLD_FILES+=usr/share/nls/uk_UA.UTF-8/grep.cat
	OLD_FILES+=usr/share/nls/ja_JP.UTF-8/grep.cat
	# 20180528: libpcap update removed header file
	OLD_FILES+=usr/include/pcap/export-defs.h
	# 20180517: retire vxge
	OLD_FILES+=usr/share/man/man4/if_vxge.4.gz
	OLD_FILES+=usr/share/man/man4/vxge.4.gz
	# 20180512: Rename Unbound tools
	OLD_FILES+=usr/sbin/unbound
	OLD_FILES+=usr/sbin/unbound-anchor
	OLD_FILES+=usr/sbin/unbound-checkconf
	OLD_FILES+=usr/sbin/unbound-control
	OLD_FILES+=usr/share/man/man5/unbound.conf.5.gz
	OLD_FILES+=usr/share/man/man8/unbound-anchor.8.gz
	OLD_FILES+=usr/share/man/man8/unbound-checkconf.8.gz
	OLD_FILES+=usr/share/man/man8/unbound-control.8.gz
	OLD_FILES+=usr/share/man/man8/unbound.8.gz
	# 20180508: retire nxge
	OLD_FILES+=usr/share/man/man4/if_nxge.4.gz
	OLD_FILES+=usr/share/man/man4/nxge.4.gz
	# 20180505: rhosts
	OLD_FILES+=usr/share/skel/dot.rhosts
	# 20180502: retire ixgb
	OLD_FILES+=usr/share/man/man4/if_ixgb.4.gz
	OLD_FILES+=usr/share/man/man4/ixgb.4.gz
	# 20180501: retire lmc
	OLD_FILES+=usr/include/dev/lmc/if_lmc.h
	OLD_DIRS+=usr/include/dev/lmc
	OLD_FILES+=usr/sbin/lmcconfig
	OLD_FILES+=usr/share/man/man4/lmc.4.gz
	OLD_FILES+=usr/share/man/man4/if_lmc.4.gz
	OLD_FILES+=usr/share/man/man8/lmcconfig.8.gz
	# 20180417: remove fuswintr and suswintr
	OLD_FILES+=usr/share/man/man9/fuswintr.9.gz
	OLD_FILES+=usr/share/man/man9/suswintr.9.gz
	# 20180413: remove Arcnet support
	OLD_FILES+=usr/include/net/if_arc.h
	OLD_FILES+=usr/share/man/man4/cm.4.gz
	# 20180409: remove FDDI support
	OLD_FILES+=usr/include/net/fddi.h
	OLD_FILES+=usr/share/man/man4/fpa.4.gz
	# 20180319: remove /boot/overlays, replaced by /boot/dtb/overlays
	OLD_DIRS+=boot/overlays
	# 20180311: remove sys/sys/i386/include/pcaudioio.h
	.if ${TARGET_ARCH} == "i386"
	OLD_FILES+=usr/include/machine/pcaudioio.h
	.endif
	# 20180310: remove sys/sys/dataacq.h
	OLD_FILES+=usr/include/sys/dataacq.h
	# 20180306: remove DTrace scripts made obsolete by dwatch(1)
	OLD_FILES+=usr/share/dtrace/watch_execve
	OLD_FILES+=usr/share/dtrace/watch_kill
	OLD_FILES+=usr/share/dtrace/watch_vop_remove
	# 20180212: move devmatch
	OLD_FILES+=usr/sbin/devmatch
	# 20180211: remove usb.conf
	OLD_FILES+=etc/devd/usb.conf
	# 20180208: remove c_rehash(1)
	OLD_FILES+=usr/share/openssl/man/man1/c_rehash.1.gz
	# 20180206: remove gdbtui
	OLD_FILES+=usr/bin/gdbtui
	# 20180201: Obsolete forth files
	OLD_FILES+=boot/pcibios.4th
	# 20180114: new clang import which bumps version from 5.0.1 to 6.0.0.
	OLD_FILES+=usr/lib/clang/5.0.1/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/sanitizer/esan_interface.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/sanitizer/tsan_interface.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/sanitizer/tsan_interface_atomic.h
	OLD_DIRS+=usr/lib/clang/5.0.1/include/sanitizer
	OLD_FILES+=usr/lib/clang/5.0.1/include/__clang_cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/__clang_cuda_cmath.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/__clang_cuda_complex_builtins.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/__clang_cuda_intrinsics.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/__clang_cuda_math_forward_declares.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/__clang_cuda_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/altivec.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/armintr.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avx512ifmaintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avx512ifmavlintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avx512pfintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avx512vbmiintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avx512vbmivlintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avx512vlcdintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avx512vpopcntdqintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/clflushoptintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/clzerointrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/cpuid.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/immintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/lwpintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/module.modulemap
	OLD_FILES+=usr/lib/clang/5.0.1/include/msa.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/mwaitxintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/opencl-c.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/pkuintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/vadefs.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/xsavecintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/xsaveintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/xsaveoptintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/xsavesintrin.h
	OLD_FILES+=usr/lib/clang/5.0.1/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/5.0.1/include
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.asan-i386.so
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.asan-x86_64.so
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.profile-armhf.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.stats-i386.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.stats-x86_64.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.stats_client-i386.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.stats_client-x86_64.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/5.0.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/5.0.1/lib/freebsd
	OLD_DIRS+=usr/lib/clang/5.0.1/lib
	OLD_DIRS+=usr/lib/clang/5.0.1
	# 20180109: Remove vestiges of digi(4) driver
	OLD_FILES+=usr/include/sys/digiio.h
	OLD_FILES+=usr/sbin/digictl
	OLD_FILES+=usr/share/man/man8/digictl.8.gz
	# 20180107: Convert remaining geli(8) tests to ATF
	OLD_FILES+=tests/sys/geom/class/eli/nokey_test.sh
	OLD_FILES+=tests/sys/geom/class/eli/readonly_test.sh
	# 20180106: Convert most geli(8) tests to ATF
	OLD_FILES+=tests/sys/geom/class/eli/attach_d_test.sh
	OLD_FILES+=tests/sys/geom/class/eli/configure_b_B_test.sh
	OLD_FILES+=tests/sys/geom/class/eli/detach_l_test.sh
	OLD_FILES+=tests/sys/geom/class/eli/init_B_test.sh
	OLD_FILES+=tests/sys/geom/class/eli/init_J_test.sh
	OLD_FILES+=tests/sys/geom/class/eli/init_a_test.sh
	OLD_FILES+=tests/sys/geom/class/eli/init_alias_test.sh
	OLD_FILES+=tests/sys/geom/class/eli/init_i_P_test.sh
	OLD_FILES+=tests/sys/geom/class/eli/integrity_copy_test.sh
	OLD_FILES+=tests/sys/geom/class/eli/integrity_data_test.sh
	OLD_FILES+=tests/sys/geom/class/eli/integrity_hmac_test.sh
	OLD_FILES+=tests/sys/geom/class/eli/onetime_a_test.sh
	OLD_FILES+=tests/sys/geom/class/eli/onetime_d_test.sh
	# 20171230: Remove /etc/skel from mtree
	OLD_DIRS+=etc/skel
	# 20171208: Remove basename_r(3)
	OLD_FILES+=usr/share/man/man3/basename_r.3.gz
	# 20171204: Move fdformat man page from volume 1 to volume 8.
	OLD_FILES+=usr/share/man/man1/fdformat.1.gz
	# 20171203: libproc version bump
	OLD_LIBS+=usr/lib/libproc.so.4
	OLD_LIBS+=usr/lib32/libproc.so.4
	# 20171203: new clang import which bumps version from 5.0.0 to 5.0.1.
	OLD_FILES+=usr/lib/clang/5.0.0/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/sanitizer/esan_interface.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/sanitizer/tsan_interface.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/sanitizer/tsan_interface_atomic.h
	OLD_DIRS+=usr/lib/clang/5.0.0/include/sanitizer
	OLD_FILES+=usr/lib/clang/5.0.0/include/__clang_cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/__clang_cuda_cmath.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/__clang_cuda_complex_builtins.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/__clang_cuda_intrinsics.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/__clang_cuda_math_forward_declares.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/__clang_cuda_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/altivec.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/armintr.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avx512ifmaintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avx512ifmavlintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avx512pfintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avx512vbmiintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avx512vbmivlintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avx512vlcdintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avx512vpopcntdqintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/clflushoptintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/clzerointrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/cpuid.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/immintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/lwpintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/module.modulemap
	OLD_FILES+=usr/lib/clang/5.0.0/include/msa.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/mwaitxintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/opencl-c.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/pkuintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/vadefs.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/xsavecintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/xsaveintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/xsaveoptintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/xsavesintrin.h
	OLD_FILES+=usr/lib/clang/5.0.0/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/5.0.0/include
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.asan-i386.so
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.asan-x86_64.so
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.profile-armhf.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.stats-i386.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.stats-x86_64.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.stats_client-i386.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.stats_client-x86_64.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/5.0.0/lib/freebsd
	OLD_DIRS+=usr/lib/clang/5.0.0/lib
	OLD_DIRS+=usr/lib/clang/5.0.0
	# 20171118: Remove old etc casper files
	OLD_FILES+=etc/casper/system.dns
	OLD_FILES+=etc/casper/system.grp
	OLD_FILES+=etc/casper/system.pwd
	OLD_FILES+=etc/casper/system.random
	OLD_FILES+=etc/casper/system.sysctl
	OLD_DIRS+=etc/casper
	# 20171116: lint(1) removal
	OLD_FILES+=usr/bin/lint
	OLD_FILES+=usr/libexec/lint1
	OLD_FILES+=usr/libexec/lint2
	OLD_FILES+=usr/libdata/lint/llib-lposix.ln
	OLD_FILES+=usr/libdata/lint/llib-lstdc.ln
	OLD_FILES+=usr/share/man/man1/lint.1.gz
	OLD_FILES+=usr/share/man/man7/lint.7.gz
	OLD_DIRS+=usr/libdata/lint
	# 20171114: Removal of all fortune datfiles other than freebsd-tips
	OLD_FILES+=usr/share/games/fortune/fortunes
	OLD_FILES+=usr/share/games/fortune/fortunes.dat
	OLD_FILES+=usr/share/games/fortune/gerrold.limerick
	OLD_FILES+=usr/share/games/fortune/gerrold.limerick.dat
	OLD_FILES+=usr/share/games/fortune/limerick
	OLD_FILES+=usr/share/games/fortune/limerick.dat
	OLD_FILES+=usr/share/games/fortune/murphy
	OLD_FILES+=usr/share/games/fortune/murphy-o
	OLD_FILES+=usr/share/games/fortune/murphy-o.dat
	OLD_FILES+=usr/share/games/fortune/murphy.dat
	OLD_FILES+=usr/share/games/fortune/startrek
	OLD_FILES+=usr/share/games/fortune/startrek.dat
	OLD_FILES+=usr/share/games/fortune/zippy
	OLD_FILES+=usr/share/games/fortune/zippy.dat
	# 20171112: Removal of eqnchar definition
	OLD_FILES+=usr/share/misc/eqnchar
	# 20171110: Removal of mailaddr man page
	OLD_FILES+=usr/share/man/man7/mailaddr.7.gz
	# 20171108: Rename of NgSendMsgReply to NgSendReplyMsg
	OLD_FILES+=usr/share/man/man3/NgSendMsgReply.3.gz
	# 20171108: badsect(8) removal
	OLD_FILES+=sbin/badsect
	OLD_FILES+=rescue/badsect
	OLD_FILES+=usr/share/man/man8/badsect.8.gz
	# 20171105: fixing lib/libclang_rt CRTARCH for arm:armv[67].
	.if ${MACHINE_ARCH:Marmv[67]*} != "" && \
	(!defined(CPUTYPE) \|\| ${CPUTYPE:Msoft} == "")
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.asan-preinit-arm.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.asan-arm.a
	OLD_LIBS+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.asan-arm.so
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.asan_cxx-arm.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.safestack-arm.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.stats-arm.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.stats_client-arm.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.ubsan_standalone-arm.a
	OLD_FILES+=usr/lib/clang/5.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-arm.a
	.endif
	# 20171104: libcap_random should be in /lib not in /usr/lib
	OLD_LIBS+=usr/lib/libcap_random.so.0
	# 20171104: Casper can work only as shared library
	OLD_FILES+=usr/lib/libcap_dns.a
	OLD_FILES+=usr/lib/libcap_dns_p.a
	OLD_FILES+=usr/lib/libcap_grp.a
	OLD_FILES+=usr/lib/libcap_grp_p.a
	OLD_FILES+=usr/lib/libcap_pwd.a
	OLD_FILES+=usr/lib/libcap_pwd_p.a
	OLD_FILES+=usr/lib/libcap_random.a
	OLD_FILES+=usr/lib/libcap_random_p.a
	OLD_FILES+=usr/lib/libcap_sysctl.a
	OLD_FILES+=usr/lib/libcap_sysctl_p.a
	OLD_FILES+=usr/lib/libcasper.a
	OLD_FILES+=usr/lib/libcasper_p.a
	OLD_FILES+=usr/lib32/libcap_dns.a
	OLD_FILES+=usr/lib32/libcap_dns_p.a
	OLD_FILES+=usr/lib32/libcap_grp.a
	OLD_FILES+=usr/lib32/libcap_grp_p.a
	OLD_FILES+=usr/lib32/libcap_pwd.a
	OLD_FILES+=usr/lib32/libcap_pwd_p.a
	OLD_FILES+=usr/lib32/libcap_random.a
	OLD_FILES+=usr/lib32/libcap_random_p.a
	OLD_FILES+=usr/lib32/libcap_sysctl.a
	OLD_FILES+=usr/lib32/libcap_sysctl_p.a
	OLD_FILES+=usr/lib32/libcasper.a
	OLD_FILES+=usr/lib32/libcasper_p.a
	# 20171031: Removal of adding_user man page
	OLD_FILES+=usr/share/man/man7/adding_user.7.gz
	# 20171031: Disconnected libpathconv tests
	OLD_DIRS+=usr/tests/lib/libpathconv
	# 20171017: Removal of mbpool(9)
	OLD_FILES+=usr/include/sys/mbpool.h
	OLD_FILES+=usr/share/man/man9/mbpool.9.gz
	OLD_FILES+=usr/share/man/man9/mbp_destroy.9.gz
	OLD_FILES+=usr/share/man/man9/mbp_alloc.9.gz
	OLD_FILES+=usr/share/man/man9/mbp_ext_free.9.gz
	OLD_FILES+=usr/share/man/man9/mbp_count.9.gz
	OLD_FILES+=usr/share/man/man9/mbp_card_free.9.gz
	OLD_FILES+=usr/share/man/man9/mbp_get_keep.9.gz
	OLD_FILES+=usr/share/man/man9/mbp_free.9.gz
	OLD_FILES+=usr/share/man/man9/mbp_get.9.gz
	OLD_FILES+=usr/share/man/man9/mbp_create.9.gz
	OLD_FILES+=usr/share/man/man9/mbp_sync.9.gz
	# 20171010: Remove libstand
	OLD_FILES+=usr/lib/libstand.a
	OLD_FILES+=usr/lib/libstand_p.a
	OLD_FILES+=usr/lib32/libstand.a
	OLD_FILES+=usr/lib32/libstand_p.a
	OLD_FILES+=usr/include/stand.h
	OLD_FILES+=usr/share/man/man3/libstand.3.gz
	# 20171003: remove RCMDS
	OLD_FILES+=bin/rcp
	OLD_FILES+=rescue/rcp
	OLD_FILES+=usr/bin/rlogin
	OLD_FILES+=usr/bin/rsh
	OLD_FILES+=usr/libexec/rlogind
	OLD_FILES+=usr/libexec/rshd
	OLD_FILES+=usr/share/man/man1/rcp.1.gz
	OLD_FILES+=usr/share/man/man1/rlogin.1.gz
	OLD_FILES+=usr/share/man/man1/rsh.1.gz
	OLD_FILES+=usr/share/man/man8/rlogind.8.gz
	OLD_FILES+=usr/share/man/man8/rshd.8.gz
	# 20170927: crshared
	OLD_FILES+=usr/share/man/man9/crshared.9.gz
	# 20170927: procctl
	OLD_FILES+=usr/share/man/man8/procctl.8.gz
	OLD_FILES+=usr/sbin/procctl
	# 20170926: remove unneeded man aliases and locales directory
	OLD_FILES+=usr/share/man/en.ISO8859-1/man1
	OLD_FILES+=usr/share/man/en.ISO8859-1/man2
	OLD_FILES+=usr/share/man/en.ISO8859-1/man3
	OLD_FILES+=usr/share/man/en.ISO8859-1/man4
	OLD_FILES+=usr/share/man/en.ISO8859-1/man5
	OLD_FILES+=usr/share/man/en.ISO8859-1/man6
	OLD_FILES+=usr/share/man/en.ISO8859-1/man7
	OLD_FILES+=usr/share/man/en.ISO8859-1/man8
	OLD_FILES+=usr/share/man/en.ISO8859-1/man9
	OLD_DIRS+=usr/share/man/en.ISO8859-1
	OLD_FILES+=usr/share/man/en.ISO8859-1/mandoc.db
	OLD_FILES+=usr/share/man/en.UTF-8/man1
	OLD_FILES+=usr/share/man/en.UTF-8/man2
	OLD_FILES+=usr/share/man/en.UTF-8/man3
	OLD_FILES+=usr/share/man/en.UTF-8/man4
	OLD_FILES+=usr/share/man/en.UTF-8/man5
	OLD_FILES+=usr/share/man/en.UTF-8/man6
	OLD_FILES+=usr/share/man/en.UTF-8/man7
	OLD_FILES+=usr/share/man/en.UTF-8/man8
	OLD_FILES+=usr/share/man/en.UTF-8/man9
	OLD_FILES+=usr/share/man/en.UTF-8/mandoc.db
	OLD_DIRS+=usr/share/man/en.UTF-8
	OLD_FILES+=usr/share/man/en.ISO8859-15
	OLD_FILES+=usr/share/openssl/man/en.ISO8859-1/man1
	OLD_FILES+=usr/share/openssl/man/en.ISO8859-1/man3
	OLD_FILES+=usr/share/openssl/man/en.ISO8859-1/mandoc.db
	OLD_DIRS+=usr/share/openssl/man/en.ISO8859-1
	OLD_FILES+=usr/share/openssl/man/en.ISO8859-15
	OLD_DIRS+=usr/share/man/ja/man1
	OLD_DIRS+=usr/share/man/ja/man2
	OLD_DIRS+=usr/share/man/ja/man3
	OLD_DIRS+=usr/share/man/ja/man4
	OLD_DIRS+=usr/share/man/ja/man5
	OLD_DIRS+=usr/share/man/ja/man6
	OLD_DIRS+=usr/share/man/ja/man7
	OLD_DIRS+=usr/share/man/ja/man8
	OLD_DIRS+=usr/share/man/ja/man9
	OLD_DIRS+=usr/share/man/ja
	# 20170913: remove unneeded catman utility
	OLD_FILES+=etc/periodic/weekly/330.catman
	OLD_FILES+=usr/bin/catman
	OLD_FILES+=usr/libexec/catman.local
	OLD_FILES+=usr/share/man/man1/catman.1.gz
	OLD_FILES+=usr/share/man/man8/catman.local.8.gz
	OLD_DIRS+=usr/share/man/cat1
	OLD_DIRS+=usr/share/man/cat2
	OLD_DIRS+=usr/share/man/cat3
	OLD_DIRS+=usr/share/man/cat4/amd64
	OLD_DIRS+=usr/share/man/cat4/arm
	OLD_DIRS+=usr/share/man/cat4/i386
	OLD_DIRS+=usr/share/man/cat4/powerpc
	OLD_DIRS+=usr/share/man/cat4/sparc64
	OLD_DIRS+=usr/share/man/cat4
	OLD_DIRS+=usr/share/man/cat5
	OLD_DIRS+=usr/share/man/cat6
	OLD_DIRS+=usr/share/man/cat7
	OLD_DIRS+=usr/share/man/cat8/amd64
	OLD_DIRS+=usr/share/man/cat8/arm
	OLD_DIRS+=usr/share/man/cat8/i386
	OLD_DIRS+=usr/share/man/cat8/powerpc
	OLD_DIRS+=usr/share/man/cat8/sparc64
	OLD_DIRS+=usr/share/man/cat8
	OLD_DIRS+=usr/share/man/cat9
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat1
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat2
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat3
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat4/amd64
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat4/arm
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat4/i386
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat4/powerpc
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat4/sparc64
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat4
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat5
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat6
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat7
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat8/amd64
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat8/arm
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat8/i386
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat8/powerpc
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat8/sparc64
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat8
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat9
	OLD_DIRS+=usr/share/man/en.UTF-8/cat1
	OLD_DIRS+=usr/share/man/en.UTF-8/cat2
	OLD_DIRS+=usr/share/man/en.UTF-8/cat3
	OLD_DIRS+=usr/share/man/en.UTF-8/cat4/amd64
	OLD_DIRS+=usr/share/man/en.UTF-8/cat4/arm
	OLD_DIRS+=usr/share/man/en.UTF-8/cat4/i386
	OLD_DIRS+=usr/share/man/en.UTF-8/cat4/powerpc
	OLD_DIRS+=usr/share/man/en.UTF-8/cat4/sparc64
	OLD_DIRS+=usr/share/man/en.UTF-8/cat4
	OLD_DIRS+=usr/share/man/en.UTF-8/cat5
	OLD_DIRS+=usr/share/man/en.UTF-8/cat6
	OLD_DIRS+=usr/share/man/en.UTF-8/cat7
	OLD_DIRS+=usr/share/man/en.UTF-8/cat8/amd64
	OLD_DIRS+=usr/share/man/en.UTF-8/cat8/arm
	OLD_DIRS+=usr/share/man/en.UTF-8/cat8/i386
	OLD_DIRS+=usr/share/man/en.UTF-8/cat8/powerpc
	OLD_DIRS+=usr/share/man/en.UTF-8/cat8/sparc64
	OLD_DIRS+=usr/share/man/en.UTF-8/cat8
	OLD_DIRS+=usr/share/man/en.UTF-8/cat9
	OLD_DIRS+=usr/share/man/ja/cat1
	OLD_DIRS+=usr/share/man/ja/cat2
	OLD_DIRS+=usr/share/man/ja/cat3
	OLD_DIRS+=usr/share/man/ja/cat4/amd64
	OLD_DIRS+=usr/share/man/ja/cat4/arm
	OLD_DIRS+=usr/share/man/ja/cat4/i386
	OLD_DIRS+=usr/share/man/ja/cat4/powerpc
	OLD_DIRS+=usr/share/man/ja/cat4/sparc64
	OLD_DIRS+=usr/share/man/ja/cat4
	OLD_DIRS+=usr/share/man/ja/cat5
	OLD_DIRS+=usr/share/man/ja/cat6
	OLD_DIRS+=usr/share/man/ja/cat7
	OLD_DIRS+=usr/share/man/ja/cat8/amd64
	OLD_DIRS+=usr/share/man/ja/cat8/arm
	OLD_DIRS+=usr/share/man/ja/cat8/powerpc
	OLD_DIRS+=usr/share/man/ja/cat8/sparc64
	OLD_DIRS+=usr/share/man/ja/cat8
	OLD_DIRS+=usr/share/man/ja/cat9
	OLD_DIRS+=usr/share/openssl/man/cat1
	OLD_DIRS+=usr/share/openssl/man/cat3
	OLD_DIRS+=usr/share/openssl/man/en.ISO8859-1/cat1
	OLD_DIRS+=usr/share/openssl/man/en.ISO8859-1/cat3
	# 20170830: rename ntb_hw(4) to ntb_hw_intel(4)
	OLD_FILES+=usr/share/man/man4/ntb_hw.4.gz
	# 20170802: ksyms(4) ioctl interface was removed
	OLD_FILES+=usr/include/sys/ksyms.h
	# 20170729: the iicbus/pcf8563 driver is replaced with iicbus/nxprtc
	OLD_FILES+=usr/include/dev/iicbus/pcf8563reg.h
	# 20170722: new clang import which bumps version from 4.0.0 to 5.0.0.
	OLD_FILES+=usr/lib/clang/4.0.0/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/sanitizer/esan_interface.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/sanitizer/tsan_interface_atomic.h
	OLD_DIRS+=usr/lib/clang/4.0.0/include/sanitizer
	OLD_FILES+=usr/lib/clang/4.0.0/include/__clang_cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/__clang_cuda_cmath.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/__clang_cuda_complex_builtins.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/__clang_cuda_intrinsics.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/__clang_cuda_math_forward_declares.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/__clang_cuda_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/altivec.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/armintr.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/avx512ifmaintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/avx512ifmavlintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/avx512pfintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/avx512vbmiintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/avx512vbmivlintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/avx512vlcdintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/clflushoptintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/cpuid.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/immintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/module.modulemap
	OLD_FILES+=usr/lib/clang/4.0.0/include/msa.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/mwaitxintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/opencl-c.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/pkuintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/vadefs.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/xsavecintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/xsaveintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/xsaveoptintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/xsavesintrin.h
	OLD_FILES+=usr/lib/clang/4.0.0/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/4.0.0/include
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.asan-i386.so
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.asan-x86_64.so
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.stats-i386.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.stats-x86_64.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.stats_client-i386.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.stats_client-x86_64.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/4.0.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/4.0.0/lib/freebsd
	OLD_DIRS+=usr/lib/clang/4.0.0/lib
	OLD_DIRS+=usr/lib/clang/4.0.0
	OLD_FILES+=usr/bin/llvm-pdbdump
	# 20170717: Remove documentation of vaporware
	OLD_FILES+=usr/share/man/man2/pdwait4.2.gz
	# 20170610: chown-f_test replaced by chown_test
	OLD_FILES+=usr/tests/usr.sbin/chown/chown-f_test
	# 20170609: drop obsolete manpage link (if_rtwn.ko -> rtwn.ko)
	OLD_FILES+=usr/share/man/man4/if_rtwn.4.gz
	# 20170531: removal of groff
	OLD_FILES+=usr/bin/addftinfo
	OLD_FILES+=usr/bin/afmtodit
	OLD_FILES+=usr/bin/checknr
	OLD_FILES+=usr/bin/colcrt
	OLD_FILES+=usr/bin/eqn
	OLD_FILES+=usr/bin/grn
	OLD_FILES+=usr/bin/grodvi
	OLD_FILES+=usr/bin/groff
	OLD_FILES+=usr/bin/grog
	OLD_FILES+=usr/bin/grolbp
	OLD_FILES+=usr/bin/grolj4
	OLD_FILES+=usr/bin/grops
	OLD_FILES+=usr/bin/grotty
	OLD_FILES+=usr/bin/hpftodit
	OLD_FILES+=usr/bin/indxbib
	OLD_FILES+=usr/bin/lkbib
	OLD_FILES+=usr/bin/lookbib
	OLD_FILES+=usr/bin/mmroff
	OLD_FILES+=usr/bin/neqn
	OLD_FILES+=usr/bin/nroff
	OLD_FILES+=usr/bin/pfbtops
	OLD_FILES+=usr/bin/pic
	OLD_FILES+=usr/bin/post-grohtml
	OLD_FILES+=usr/bin/pre-grohtml
	OLD_FILES+=usr/bin/psroff
	OLD_FILES+=usr/bin/refer
	OLD_FILES+=usr/bin/tbl
	OLD_FILES+=usr/bin/tfmtodit
	OLD_FILES+=usr/bin/troff
	OLD_FILES+=usr/bin/vgrind
	OLD_FILES+=usr/libexec/vfontedpr
	OLD_FILES+=usr/share/dict/eign
	OLD_FILES+=usr/share/groff_font/devX100-12/CB
	OLD_FILES+=usr/share/groff_font/devX100-12/CBI
	OLD_FILES+=usr/share/groff_font/devX100-12/CI
	OLD_FILES+=usr/share/groff_font/devX100-12/CR
	OLD_FILES+=usr/share/groff_font/devX100-12/DESC
	OLD_FILES+=usr/share/groff_font/devX100-12/HB
	OLD_FILES+=usr/share/groff_font/devX100-12/HBI
	OLD_FILES+=usr/share/groff_font/devX100-12/HI
	OLD_FILES+=usr/share/groff_font/devX100-12/HR
	OLD_FILES+=usr/share/groff_font/devX100-12/NB
	OLD_FILES+=usr/share/groff_font/devX100-12/NBI
	OLD_FILES+=usr/share/groff_font/devX100-12/NI
	OLD_FILES+=usr/share/groff_font/devX100-12/NR
	OLD_FILES+=usr/share/groff_font/devX100-12/S
	OLD_FILES+=usr/share/groff_font/devX100-12/TB
	OLD_FILES+=usr/share/groff_font/devX100-12/TBI
	OLD_FILES+=usr/share/groff_font/devX100-12/TI
	OLD_FILES+=usr/share/groff_font/devX100-12/TR
	OLD_DIRS+=usr/share/groff_font/devX100-12
	OLD_FILES+=usr/share/groff_font/devX100/CB
	OLD_FILES+=usr/share/groff_font/devX100/CBI
	OLD_FILES+=usr/share/groff_font/devX100/CI
	OLD_FILES+=usr/share/groff_font/devX100/CR
	OLD_FILES+=usr/share/groff_font/devX100/DESC
	OLD_FILES+=usr/share/groff_font/devX100/HB
	OLD_FILES+=usr/share/groff_font/devX100/HBI
	OLD_FILES+=usr/share/groff_font/devX100/HI
	OLD_FILES+=usr/share/groff_font/devX100/HR
	OLD_FILES+=usr/share/groff_font/devX100/NB
	OLD_FILES+=usr/share/groff_font/devX100/NBI
	OLD_FILES+=usr/share/groff_font/devX100/NI
	OLD_FILES+=usr/share/groff_font/devX100/NR
	OLD_FILES+=usr/share/groff_font/devX100/S
	OLD_FILES+=usr/share/groff_font/devX100/TB
	OLD_FILES+=usr/share/groff_font/devX100/TBI
	OLD_FILES+=usr/share/groff_font/devX100/TI
	OLD_FILES+=usr/share/groff_font/devX100/TR
	OLD_DIRS+=usr/share/groff_font/devX100
	OLD_FILES+=usr/share/groff_font/devX75-12/CB
	OLD_FILES+=usr/share/groff_font/devX75-12/CBI
	OLD_FILES+=usr/share/groff_font/devX75-12/CI
	OLD_FILES+=usr/share/groff_font/devX75-12/CR
	OLD_FILES+=usr/share/groff_font/devX75-12/DESC
	OLD_FILES+=usr/share/groff_font/devX75-12/HB
	OLD_FILES+=usr/share/groff_font/devX75-12/HBI
	OLD_FILES+=usr/share/groff_font/devX75-12/HI
	OLD_FILES+=usr/share/groff_font/devX75-12/HR
	OLD_FILES+=usr/share/groff_font/devX75-12/NB
	OLD_FILES+=usr/share/groff_font/devX75-12/NBI
	OLD_FILES+=usr/share/groff_font/devX75-12/NI
	OLD_FILES+=usr/share/groff_font/devX75-12/NR
	OLD_FILES+=usr/share/groff_font/devX75-12/S
	OLD_FILES+=usr/share/groff_font/devX75-12/TB
	OLD_FILES+=usr/share/groff_font/devX75-12/TBI
	OLD_FILES+=usr/share/groff_font/devX75-12/TI
	OLD_FILES+=usr/share/groff_font/devX75-12/TR
	OLD_DIRS+=usr/share/groff_font/devX75-12
	OLD_FILES+=usr/share/groff_font/devX75/CB
	OLD_FILES+=usr/share/groff_font/devX75/CBI
	OLD_FILES+=usr/share/groff_font/devX75/CI
	OLD_FILES+=usr/share/groff_font/devX75/CR
	OLD_FILES+=usr/share/groff_font/devX75/DESC
	OLD_FILES+=usr/share/groff_font/devX75/HB
	OLD_FILES+=usr/share/groff_font/devX75/HBI
	OLD_FILES+=usr/share/groff_font/devX75/HI
	OLD_FILES+=usr/share/groff_font/devX75/HR
	OLD_FILES+=usr/share/groff_font/devX75/NB
	OLD_FILES+=usr/share/groff_font/devX75/NBI
	OLD_FILES+=usr/share/groff_font/devX75/NI
	OLD_FILES+=usr/share/groff_font/devX75/NR
	OLD_FILES+=usr/share/groff_font/devX75/S
	OLD_FILES+=usr/share/groff_font/devX75/TB
	OLD_FILES+=usr/share/groff_font/devX75/TBI
	OLD_FILES+=usr/share/groff_font/devX75/TI
	OLD_FILES+=usr/share/groff_font/devX75/TR
	OLD_DIRS+=usr/share/groff_font/devX75
	OLD_FILES+=usr/share/groff_font/devascii/B
	OLD_FILES+=usr/share/groff_font/devascii/BI
	OLD_FILES+=usr/share/groff_font/devascii/CW
	OLD_FILES+=usr/share/groff_font/devascii/DESC
	OLD_FILES+=usr/share/groff_font/devascii/I
	OLD_FILES+=usr/share/groff_font/devascii/L
	OLD_FILES+=usr/share/groff_font/devascii/R
	OLD_FILES+=usr/share/groff_font/devascii/S
	OLD_DIRS+=usr/share/groff_font/devascii
	OLD_FILES+=usr/share/groff_font/devcp1047/B
	OLD_FILES+=usr/share/groff_font/devcp1047/BI
	OLD_FILES+=usr/share/groff_font/devcp1047/CW
	OLD_FILES+=usr/share/groff_font/devcp1047/DESC
	OLD_FILES+=usr/share/groff_font/devcp1047/I
	OLD_FILES+=usr/share/groff_font/devcp1047/L
	OLD_FILES+=usr/share/groff_font/devcp1047/R
	OLD_FILES+=usr/share/groff_font/devcp1047/S
	OLD_DIRS+=usr/share/groff_font/devcp1047
	OLD_FILES+=usr/share/groff_font/devdvi/CW
	OLD_FILES+=usr/share/groff_font/devdvi/CWEC
	OLD_FILES+=usr/share/groff_font/devdvi/CWI
	OLD_FILES+=usr/share/groff_font/devdvi/CWIEC
	OLD_FILES+=usr/share/groff_font/devdvi/CWITC
	OLD_FILES+=usr/share/groff_font/devdvi/CWTC
	OLD_FILES+=usr/share/groff_font/devdvi/CompileFonts
	OLD_FILES+=usr/share/groff_font/devdvi/DESC
	OLD_FILES+=usr/share/groff_font/devdvi/EX
	OLD_FILES+=usr/share/groff_font/devdvi/HB
	OLD_FILES+=usr/share/groff_font/devdvi/HBEC
	OLD_FILES+=usr/share/groff_font/devdvi/HBI
	OLD_FILES+=usr/share/groff_font/devdvi/HBIEC
	OLD_FILES+=usr/share/groff_font/devdvi/HBITC
	OLD_FILES+=usr/share/groff_font/devdvi/HBTC
	OLD_FILES+=usr/share/groff_font/devdvi/HI
	OLD_FILES+=usr/share/groff_font/devdvi/HIEC
	OLD_FILES+=usr/share/groff_font/devdvi/HITC
	OLD_FILES+=usr/share/groff_font/devdvi/HR
	OLD_FILES+=usr/share/groff_font/devdvi/HREC
	OLD_FILES+=usr/share/groff_font/devdvi/HRTC
	OLD_FILES+=usr/share/groff_font/devdvi/MI
	OLD_FILES+=usr/share/groff_font/devdvi/Makefile
	OLD_FILES+=usr/share/groff_font/devdvi/S
	OLD_FILES+=usr/share/groff_font/devdvi/SA
	OLD_FILES+=usr/share/groff_font/devdvi/SB
	OLD_FILES+=usr/share/groff_font/devdvi/SC
	OLD_FILES+=usr/share/groff_font/devdvi/TB
	OLD_FILES+=usr/share/groff_font/devdvi/TBEC
	OLD_FILES+=usr/share/groff_font/devdvi/TBI
	OLD_FILES+=usr/share/groff_font/devdvi/TBIEC
	OLD_FILES+=usr/share/groff_font/devdvi/TBITC
	OLD_FILES+=usr/share/groff_font/devdvi/TBTC
	OLD_FILES+=usr/share/groff_font/devdvi/TI
	OLD_FILES+=usr/share/groff_font/devdvi/TIEC
	OLD_FILES+=usr/share/groff_font/devdvi/TITC
	OLD_FILES+=usr/share/groff_font/devdvi/TR
	OLD_FILES+=usr/share/groff_font/devdvi/TREC
	OLD_FILES+=usr/share/groff_font/devdvi/TRTC
	OLD_FILES+=usr/share/groff_font/devdvi/ec.map
	OLD_FILES+=usr/share/groff_font/devdvi/msam.map
	OLD_FILES+=usr/share/groff_font/devdvi/msbm.map
	OLD_FILES+=usr/share/groff_font/devdvi/tc.map
	OLD_FILES+=usr/share/groff_font/devdvi/texb.map
	OLD_FILES+=usr/share/groff_font/devdvi/texex.map
	OLD_FILES+=usr/share/groff_font/devdvi/texi.map
	OLD_FILES+=usr/share/groff_font/devdvi/texmi.map
	OLD_FILES+=usr/share/groff_font/devdvi/texr.map
	OLD_FILES+=usr/share/groff_font/devdvi/texsy.map
	OLD_FILES+=usr/share/groff_font/devdvi/textex.map
	OLD_FILES+=usr/share/groff_font/devdvi/textt.map
	OLD_DIRS+=usr/share/groff_font/devdvi
	OLD_FILES+=usr/share/groff_font/devhtml/B
	OLD_FILES+=usr/share/groff_font/devhtml/BI
	OLD_FILES+=usr/share/groff_font/devhtml/CB
	OLD_FILES+=usr/share/groff_font/devhtml/CBI
	OLD_FILES+=usr/share/groff_font/devhtml/CI
	OLD_FILES+=usr/share/groff_font/devhtml/CR
	OLD_FILES+=usr/share/groff_font/devhtml/DESC
	OLD_FILES+=usr/share/groff_font/devhtml/I
	OLD_FILES+=usr/share/groff_font/devhtml/R
	OLD_FILES+=usr/share/groff_font/devhtml/S
	OLD_DIRS+=usr/share/groff_font/devhtml
	OLD_FILES+=usr/share/groff_font/devkoi8-r/B
	OLD_FILES+=usr/share/groff_font/devkoi8-r/BI
	OLD_FILES+=usr/share/groff_font/devkoi8-r/CW
	OLD_FILES+=usr/share/groff_font/devkoi8-r/DESC
	OLD_FILES+=usr/share/groff_font/devkoi8-r/I
	OLD_FILES+=usr/share/groff_font/devkoi8-r/L
	OLD_FILES+=usr/share/groff_font/devkoi8-r/R
	OLD_FILES+=usr/share/groff_font/devkoi8-r/S
	OLD_DIRS+=usr/share/groff_font/devkoi8-r
	OLD_FILES+=usr/share/groff_font/devlatin1/B
	OLD_FILES+=usr/share/groff_font/devlatin1/BI
	OLD_FILES+=usr/share/groff_font/devlatin1/CW
	OLD_FILES+=usr/share/groff_font/devlatin1/DESC
	OLD_FILES+=usr/share/groff_font/devlatin1/I
	OLD_FILES+=usr/share/groff_font/devlatin1/L
	OLD_FILES+=usr/share/groff_font/devlatin1/R
	OLD_FILES+=usr/share/groff_font/devlatin1/S
	OLD_DIRS+=usr/share/groff_font/devlatin1
	OLD_FILES+=usr/share/groff_font/devlbp/CB
	OLD_FILES+=usr/share/groff_font/devlbp/CI
	OLD_FILES+=usr/share/groff_font/devlbp/CR
	OLD_FILES+=usr/share/groff_font/devlbp/DESC
	OLD_FILES+=usr/share/groff_font/devlbp/EB
	OLD_FILES+=usr/share/groff_font/devlbp/EI
	OLD_FILES+=usr/share/groff_font/devlbp/ER
	OLD_FILES+=usr/share/groff_font/devlbp/HB
	OLD_FILES+=usr/share/groff_font/devlbp/HBI
	OLD_FILES+=usr/share/groff_font/devlbp/HI
	OLD_FILES+=usr/share/groff_font/devlbp/HNB
	OLD_FILES+=usr/share/groff_font/devlbp/HNBI
	OLD_FILES+=usr/share/groff_font/devlbp/HNI
	OLD_FILES+=usr/share/groff_font/devlbp/HNR
	OLD_FILES+=usr/share/groff_font/devlbp/HR
	OLD_FILES+=usr/share/groff_font/devlbp/TB
	OLD_FILES+=usr/share/groff_font/devlbp/TBI
	OLD_FILES+=usr/share/groff_font/devlbp/TI
	OLD_FILES+=usr/share/groff_font/devlbp/TR
	OLD_DIRS+=usr/share/groff_font/devlbp
	OLD_FILES+=usr/share/groff_font/devlj4/AB
	OLD_FILES+=usr/share/groff_font/devlj4/ABI
	OLD_FILES+=usr/share/groff_font/devlj4/AI
	OLD_FILES+=usr/share/groff_font/devlj4/ALBB
	OLD_FILES+=usr/share/groff_font/devlj4/ALBR
	OLD_FILES+=usr/share/groff_font/devlj4/AOB
	OLD_FILES+=usr/share/groff_font/devlj4/AOI
	OLD_FILES+=usr/share/groff_font/devlj4/AOR
	OLD_FILES+=usr/share/groff_font/devlj4/AR
	OLD_FILES+=usr/share/groff_font/devlj4/CB
	OLD_FILES+=usr/share/groff_font/devlj4/CBI
	OLD_FILES+=usr/share/groff_font/devlj4/CI
	OLD_FILES+=usr/share/groff_font/devlj4/CLARENDON
	OLD_FILES+=usr/share/groff_font/devlj4/CORONET
	OLD_FILES+=usr/share/groff_font/devlj4/CR
	OLD_FILES+=usr/share/groff_font/devlj4/DESC
	OLD_FILES+=usr/share/groff_font/devlj4/GB
	OLD_FILES+=usr/share/groff_font/devlj4/GBI
	OLD_FILES+=usr/share/groff_font/devlj4/GI
	OLD_FILES+=usr/share/groff_font/devlj4/GR
	OLD_FILES+=usr/share/groff_font/devlj4/LGB
	OLD_FILES+=usr/share/groff_font/devlj4/LGI
	OLD_FILES+=usr/share/groff_font/devlj4/LGR
	OLD_FILES+=usr/share/groff_font/devlj4/MARIGOLD
	OLD_FILES+=usr/share/groff_font/devlj4/OB
	OLD_FILES+=usr/share/groff_font/devlj4/OBI
	OLD_FILES+=usr/share/groff_font/devlj4/OI
	OLD_FILES+=usr/share/groff_font/devlj4/OR
	OLD_FILES+=usr/share/groff_font/devlj4/S
	OLD_FILES+=usr/share/groff_font/devlj4/SYMBOL
	OLD_FILES+=usr/share/groff_font/devlj4/TB
	OLD_FILES+=usr/share/groff_font/devlj4/TBI
	OLD_FILES+=usr/share/groff_font/devlj4/TI
	OLD_FILES+=usr/share/groff_font/devlj4/TNRB
	OLD_FILES+=usr/share/groff_font/devlj4/TNRBI
	OLD_FILES+=usr/share/groff_font/devlj4/TNRI
	OLD_FILES+=usr/share/groff_font/devlj4/TNRR
	OLD_FILES+=usr/share/groff_font/devlj4/TR
	OLD_FILES+=usr/share/groff_font/devlj4/UB
	OLD_FILES+=usr/share/groff_font/devlj4/UBI
	OLD_FILES+=usr/share/groff_font/devlj4/UCB
	OLD_FILES+=usr/share/groff_font/devlj4/UCBI
	OLD_FILES+=usr/share/groff_font/devlj4/UCI
	OLD_FILES+=usr/share/groff_font/devlj4/UCR
	OLD_FILES+=usr/share/groff_font/devlj4/UI
	OLD_FILES+=usr/share/groff_font/devlj4/UR
	OLD_FILES+=usr/share/groff_font/devlj4/WINGDINGS
	OLD_DIRS+=usr/share/groff_font/devlj4
	OLD_FILES+=usr/share/groff_font/devps/AB
	OLD_FILES+=usr/share/groff_font/devps/ABI
	OLD_FILES+=usr/share/groff_font/devps/AI
	OLD_FILES+=usr/share/groff_font/devps/AR
	OLD_FILES+=usr/share/groff_font/devps/BMB
	OLD_FILES+=usr/share/groff_font/devps/BMBI
	OLD_FILES+=usr/share/groff_font/devps/BMI
	OLD_FILES+=usr/share/groff_font/devps/BMR
	OLD_FILES+=usr/share/groff_font/devps/CB
	OLD_FILES+=usr/share/groff_font/devps/CBI
	OLD_FILES+=usr/share/groff_font/devps/CI
	OLD_FILES+=usr/share/groff_font/devps/CR
	OLD_FILES+=usr/share/groff_font/devps/DESC
	OLD_FILES+=usr/share/groff_font/devps/EURO
	OLD_FILES+=usr/share/groff_font/devps/HB
	OLD_FILES+=usr/share/groff_font/devps/HBI
	OLD_FILES+=usr/share/groff_font/devps/HI
	OLD_FILES+=usr/share/groff_font/devps/HNB
	OLD_FILES+=usr/share/groff_font/devps/HNBI
	OLD_FILES+=usr/share/groff_font/devps/HNI
	OLD_FILES+=usr/share/groff_font/devps/HNR
	OLD_FILES+=usr/share/groff_font/devps/HR
	OLD_FILES+=usr/share/groff_font/devps/Makefile
	OLD_FILES+=usr/share/groff_font/devps/NB
	OLD_FILES+=usr/share/groff_font/devps/NBI
	OLD_FILES+=usr/share/groff_font/devps/NI
	OLD_FILES+=usr/share/groff_font/devps/NR
	OLD_FILES+=usr/share/groff_font/devps/PB
	OLD_FILES+=usr/share/groff_font/devps/PBI
	OLD_FILES+=usr/share/groff_font/devps/PI
	OLD_FILES+=usr/share/groff_font/devps/PR
	OLD_FILES+=usr/share/groff_font/devps/S
	OLD_FILES+=usr/share/groff_font/devps/SS
	OLD_FILES+=usr/share/groff_font/devps/TB
	OLD_FILES+=usr/share/groff_font/devps/TBI
	OLD_FILES+=usr/share/groff_font/devps/TI
	OLD_FILES+=usr/share/groff_font/devps/TR
	OLD_FILES+=usr/share/groff_font/devps/ZCMI
	OLD_FILES+=usr/share/groff_font/devps/ZD
	OLD_FILES+=usr/share/groff_font/devps/ZDR
	OLD_FILES+=usr/share/groff_font/devps/afmname
	OLD_FILES+=usr/share/groff_font/devps/dingbats.map
	OLD_FILES+=usr/share/groff_font/devps/dingbats.rmap
	OLD_FILES+=usr/share/groff_font/devps/download
	OLD_FILES+=usr/share/groff_font/devps/freeeuro.pfa
	OLD_FILES+=usr/share/groff_font/devps/lgreekmap
	OLD_FILES+=usr/share/groff_font/devps/prologue
	OLD_FILES+=usr/share/groff_font/devps/symbol.sed
	OLD_FILES+=usr/share/groff_font/devps/symbolchars
	OLD_FILES+=usr/share/groff_font/devps/symbolsl.afm
	OLD_FILES+=usr/share/groff_font/devps/symbolsl.pfa
	OLD_FILES+=usr/share/groff_font/devps/text.enc
	OLD_FILES+=usr/share/groff_font/devps/textmap
	OLD_FILES+=usr/share/groff_font/devps/zapfdr.pfa
	OLD_DIRS+=usr/share/groff_font/devps
	OLD_FILES+=usr/share/groff_font/devutf8/B
	OLD_FILES+=usr/share/groff_font/devutf8/BI
	OLD_FILES+=usr/share/groff_font/devutf8/CW
	OLD_FILES+=usr/share/groff_font/devutf8/DESC
	OLD_FILES+=usr/share/groff_font/devutf8/I
	OLD_FILES+=usr/share/groff_font/devutf8/L
	OLD_FILES+=usr/share/groff_font/devutf8/R
	OLD_FILES+=usr/share/groff_font/devutf8/S
	OLD_DIRS+=usr/share/groff_font/devutf8
	OLD_DIRS+=usr/share/groff_font
	OLD_FILES+=usr/share/man/man1/addftinfo.1.gz
	OLD_FILES+=usr/share/man/man1/afmtodit.1.gz
	OLD_FILES+=usr/share/man/man1/checknr.1.gz
	OLD_FILES+=usr/share/man/man1/colcrt.1.gz
	OLD_FILES+=usr/share/man/man1/eqn.1.gz
	OLD_FILES+=usr/share/man/man1/grn.1.gz
	OLD_FILES+=usr/share/man/man1/grodvi.1.gz
	OLD_FILES+=usr/share/man/man1/groff.1.gz
	OLD_FILES+=usr/share/man/man1/grog.1.gz
	OLD_FILES+=usr/share/man/man1/grolbp.1.gz
	OLD_FILES+=usr/share/man/man1/grolj4.1.gz
	OLD_FILES+=usr/share/man/man1/grops.1.gz
	OLD_FILES+=usr/share/man/man1/grotty.1.gz
	OLD_FILES+=usr/share/man/man1/hpftodit.1.gz
	OLD_FILES+=usr/share/man/man1/indxbib.1.gz
	OLD_FILES+=usr/share/man/man1/lkbib.1.gz
	OLD_FILES+=usr/share/man/man1/lookbib.1.gz
	OLD_FILES+=usr/share/man/man1/mmroff.1.gz
	OLD_FILES+=usr/share/man/man1/neqn.1.gz
	OLD_FILES+=usr/share/man/man1/nroff.1.gz
	OLD_FILES+=usr/share/man/man1/pfbtops.1.gz
	OLD_FILES+=usr/share/man/man1/pic.1.gz
	OLD_FILES+=usr/share/man/man1/psroff.1.gz
	OLD_FILES+=usr/share/man/man1/refer.1.gz
	OLD_FILES+=usr/share/man/man1/tbl.1.gz
	OLD_FILES+=usr/share/man/man1/tfmtodit.1.gz
	OLD_FILES+=usr/share/man/man1/troff.1.gz
	OLD_FILES+=usr/share/man/man1/vgrind.1.gz
	OLD_FILES+=usr/share/man/man5/groff_font.5.gz
	OLD_FILES+=usr/share/man/man5/groff_out.5.gz
	OLD_FILES+=usr/share/man/man5/groff_tmac.5.gz
	OLD_FILES+=usr/share/man/man5/lj4_font.5.gz
	OLD_FILES+=usr/share/man/man5/tmac.5.gz
	OLD_FILES+=usr/share/man/man5/vgrindefs.5.gz
	OLD_FILES+=usr/share/man/man7/ditroff.7.gz
	OLD_FILES+=usr/share/man/man7/groff.7.gz
	OLD_FILES+=usr/share/man/man7/groff_char.7.gz
	OLD_FILES+=usr/share/man/man7/groff_diff.7.gz
	OLD_FILES+=usr/share/man/man7/groff_man.7.gz
	OLD_FILES+=usr/share/man/man7/groff_mdoc.7.gz
	OLD_FILES+=usr/share/man/man7/groff_me.7.gz
	OLD_FILES+=usr/share/man/man7/groff_mm.7.gz
	OLD_FILES+=usr/share/man/man7/groff_mmse.7.gz
	OLD_FILES+=usr/share/man/man7/groff_ms.7.gz
	OLD_FILES+=usr/share/man/man7/groff_trace.7.gz
	OLD_FILES+=usr/share/man/man7/groff_www.7.gz
	OLD_FILES+=usr/share/man/man7/mdoc.samples.7.gz
	OLD_FILES+=usr/share/man/man7/me.7.gz
	OLD_FILES+=usr/share/man/man7/mm.7.gz
	OLD_FILES+=usr/share/man/man7/mmse.7.gz
	OLD_FILES+=usr/share/man/man7/ms.7.gz
	OLD_FILES+=usr/share/man/man7/orig_me.7.gz
	OLD_FILES+=usr/share/me/acm.me
	OLD_FILES+=usr/share/me/chars.me
	OLD_FILES+=usr/share/me/deltext.me
	OLD_FILES+=usr/share/me/eqn.me
	OLD_FILES+=usr/share/me/float.me
	OLD_FILES+=usr/share/me/footnote.me
	OLD_FILES+=usr/share/me/index.me
	OLD_FILES+=usr/share/me/letterhead.me
	OLD_FILES+=usr/share/me/local.me
	OLD_FILES+=usr/share/me/null.me
	OLD_FILES+=usr/share/me/refer.me
	OLD_FILES+=usr/share/me/revisions
	OLD_FILES+=usr/share/me/sh.me
	OLD_FILES+=usr/share/me/tbl.me
	OLD_FILES+=usr/share/me/thesis.me
	OLD_DIRS+=usr/share/me
	OLD_FILES+=usr/share/misc/vgrindefs
	OLD_FILES+=usr/share/misc/vgrindefs.db
	OLD_FILES+=usr/share/tmac/X.tmac
	OLD_FILES+=usr/share/tmac/Xps.tmac
	OLD_FILES+=usr/share/tmac/a4.tmac
	OLD_FILES+=usr/share/tmac/an-old.tmac
	OLD_FILES+=usr/share/tmac/an.tmac
	OLD_FILES+=usr/share/tmac/andoc.tmac
	OLD_FILES+=usr/share/tmac/composite.tmac
	OLD_FILES+=usr/share/tmac/cp1047.tmac
	OLD_FILES+=usr/share/tmac/devtag.tmac
	OLD_FILES+=usr/share/tmac/doc.tmac
	OLD_FILES+=usr/share/tmac/dvi.tmac
	OLD_FILES+=usr/share/tmac/e.tmac
	OLD_FILES+=usr/share/tmac/ec.tmac
	OLD_FILES+=usr/share/tmac/eqnrc
	OLD_FILES+=usr/share/tmac/europs.tmac
	OLD_FILES+=usr/share/tmac/html-end.tmac
	OLD_FILES+=usr/share/tmac/html.tmac
	OLD_FILES+=usr/share/tmac/hyphen.ru
	OLD_FILES+=usr/share/tmac/hyphen.us
	OLD_FILES+=usr/share/tmac/hyphenex.us
	OLD_FILES+=usr/share/tmac/koi8-r.tmac
	OLD_FILES+=usr/share/tmac/latin1.tmac
	OLD_FILES+=usr/share/tmac/latin2.tmac
	OLD_FILES+=usr/share/tmac/latin9.tmac
	OLD_FILES+=usr/share/tmac/lbp.tmac
	OLD_FILES+=usr/share/tmac/lj4.tmac
	OLD_FILES+=usr/share/tmac/m.tmac
	OLD_FILES+=usr/share/tmac/man.local
	OLD_FILES+=usr/share/tmac/man.tmac
	OLD_FILES+=usr/share/tmac/mandoc.tmac
	OLD_FILES+=usr/share/tmac/mdoc.local
	OLD_FILES+=usr/share/tmac/mdoc.tmac
	OLD_FILES+=usr/share/tmac/mdoc/doc-common
	OLD_FILES+=usr/share/tmac/mdoc/doc-ditroff
	OLD_FILES+=usr/share/tmac/mdoc/doc-nroff
	OLD_FILES+=usr/share/tmac/mdoc/doc-syms
	OLD_FILES+=usr/share/tmac/mdoc/fr.ISO8859-1
	OLD_FILES+=usr/share/tmac/mdoc/ru.KOI8-R
	OLD_DIRS+=usr/share/tmac/mdoc
	OLD_FILES+=usr/share/tmac/me.tmac
	OLD_FILES+=usr/share/tmac/mm/0.MT
	OLD_FILES+=usr/share/tmac/mm/4.MT
	OLD_FILES+=usr/share/tmac/mm/5.MT
	OLD_FILES+=usr/share/tmac/mm/locale
	OLD_FILES+=usr/share/tmac/mm/mm.tmac
	OLD_FILES+=usr/share/tmac/mm/mmse.tmac
	OLD_FILES+=usr/share/tmac/mm/ms.cov
	OLD_FILES+=usr/share/tmac/mm/se_locale
	OLD_FILES+=usr/share/tmac/mm/se_ms.cov
	OLD_DIRS+=usr/share/tmac/mm
	OLD_FILES+=usr/share/tmac/ms.tmac
	OLD_FILES+=usr/share/tmac/mse.tmac
	OLD_FILES+=usr/share/tmac/papersize.tmac
	OLD_FILES+=usr/share/tmac/pic.tmac
	OLD_FILES+=usr/share/tmac/ps.tmac
	OLD_FILES+=usr/share/tmac/psatk.tmac
	OLD_FILES+=usr/share/tmac/psold.tmac
	OLD_FILES+=usr/share/tmac/pspic.tmac
	OLD_FILES+=usr/share/tmac/s.tmac
	OLD_FILES+=usr/share/tmac/safer.tmac
	OLD_FILES+=usr/share/tmac/tmac.orig_me
	OLD_FILES+=usr/share/tmac/tmac.vgrind
	OLD_FILES+=usr/share/tmac/trace.tmac
	OLD_FILES+=usr/share/tmac/troffrc
	OLD_FILES+=usr/share/tmac/troffrc-end
	OLD_FILES+=usr/share/tmac/tty-char.tmac
	OLD_FILES+=usr/share/tmac/tty.tmac
	OLD_FILES+=usr/share/tmac/unicode.tmac
	OLD_FILES+=usr/share/tmac/www.tmac
	OLD_DIRS+=usr/share/tmac
	# 20170607: remove incorrect atf_check(1) manpage link
	OLD_FILES+=usr/share/man/man1/atf_check.1.gz
	# 20170601: remove stale manpage
	OLD_FILES+=usr/share/man/man2/cap_rights_get.2.gz
	# 20170601: old libifconfig and libifc
	OLD_FILES+=usr/lib/libifc.a
	OLD_FILES+=usr/lib/libifc_p.a
	OLD_FILES+=usr/lib/libifconfig.a
	OLD_FILES+=usr/lib/libifconfig_p.a
	OLD_FILES+=usr/lib32/libifc.a
	OLD_FILES+=usr/lib32/libifc_p.a
	OLD_FILES+=usr/lib32/libifconfig.a
	OLD_FILES+=usr/lib32/libifconfig_p.a
	# 20170529: mount.conf(8) -> mount.conf(5)
	OLD_FILES+=usr/share/man/man8/mount.conf.8.gz
	# 20170525: remove misleading template
	OLD_FILES+=usr/share/misc/man.template
	# 20170525: disconnect the roff docs from the build
	OLD_FILES+=usr/share/doc/papers/beyond43.ascii.gz
	OLD_FILES+=usr/share/doc/papers/bio.ascii.gz
	OLD_FILES+=usr/share/doc/papers/contents.ascii.gz
	OLD_FILES+=usr/share/doc/papers/devfs.ascii.gz
	OLD_FILES+=usr/share/doc/papers/diskperf.ascii.gz
	OLD_FILES+=usr/share/doc/papers/fsinterface.ascii.gz
	OLD_FILES+=usr/share/doc/papers/hwpmc.ascii.gz
	OLD_FILES+=usr/share/doc/papers/jail.ascii.gz
	OLD_FILES+=usr/share/doc/papers/kernmalloc.ascii.gz
	OLD_FILES+=usr/share/doc/papers/kerntune.ascii.gz
	OLD_FILES+=usr/share/doc/papers/malloc.ascii.gz
	OLD_FILES+=usr/share/doc/papers/newvm.ascii.gz
	OLD_FILES+=usr/share/doc/papers/releng.ascii.gz
	OLD_FILES+=usr/share/doc/papers/sysperf.ascii.gz
	OLD_FILES+=usr/share/doc/papers/timecounter.ascii.gz
	OLD_DIRS+=usr/share/doc/papers
	OLD_FILES+=usr/share/doc/psd/01.cacm/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/01.cacm
	OLD_FILES+=usr/share/doc/psd/02.implement/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/02.implement
	OLD_FILES+=usr/share/doc/psd/03.iosys/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/03.iosys
	OLD_FILES+=usr/share/doc/psd/04.uprog/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/04.uprog
	OLD_FILES+=usr/share/doc/psd/05.sysman/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/05.sysman
	OLD_FILES+=usr/share/doc/psd/06.Clang/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/06.Clang
	OLD_FILES+=usr/share/doc/psd/12.make/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/12.make
	OLD_FILES+=usr/share/doc/psd/13.rcs/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/13.rcs
	OLD_FILES+=usr/share/doc/psd/13.rcs/rcs_func.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/13.rcs
	OLD_FILES+=usr/share/doc/psd/15.yacc/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/15.yacc
	OLD_FILES+=usr/share/doc/psd/16.lex/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/16.lex
	OLD_FILES+=usr/share/doc/psd/17.m4/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/17.m4
	OLD_FILES+=usr/share/doc/psd/18.gprof/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/18.gprof
	OLD_FILES+=usr/share/doc/psd/20.ipctut/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/20.ipctut
	OLD_FILES+=usr/share/doc/psd/21.ipc/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/21.ipc
	OLD_FILES+=usr/share/doc/psd/22.rpcgen/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/22.rpcgen
	OLD_FILES+=usr/share/doc/psd/23.rpc/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/23.rpc
	OLD_FILES+=usr/share/doc/psd/24.xdr/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/24.xdr
	OLD_FILES+=usr/share/doc/psd/25.xdrrfc/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/25.xdrrfc
	OLD_FILES+=usr/share/doc/psd/26.rpcrfc/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/26.rpcrfc
	OLD_FILES+=usr/share/doc/psd/27.nfsrfc/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/27.nfsrfc
	OLD_FILES+=usr/share/doc/psd/Title.ascii.gz
	OLD_FILES+=usr/share/doc/psd/contents.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/
	OLD_FILES+=usr/share/doc/smm/01.setup/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/smm/01.setup
	OLD_FILES+=usr/share/doc/smm/02.config/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/smm/02.config
	OLD_FILES+=usr/share/doc/smm/03.fsck/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/smm/03.fsck
	OLD_FILES+=usr/share/doc/smm/04.quotas/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/smm/04.quotas
	OLD_FILES+=usr/share/doc/smm/05.fastfs/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/smm/05.fastfs
	OLD_FILES+=usr/share/doc/smm/06.nfs/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/smm/06.nfs
	OLD_FILES+=usr/share/doc/smm/07.lpd/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/smm/07.lpd
	OLD_FILES+=usr/share/doc/smm/08.sendmailop/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/smm/08.sendmailop
	OLD_FILES+=usr/share/doc/smm/11.timedop/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/smm/11.timedop
	OLD_FILES+=usr/share/doc/smm/12.timed/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/smm/12.timed
	OLD_FILES+=usr/share/doc/smm/18.net/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/smm/18.net
	OLD_FILES+=usr/share/doc/smm/Title.ascii.gz
	OLD_FILES+=usr/share/doc/smm/contents.ascii.gz
	OLD_DIRS+=usr/share/doc/smm
	OLD_FILES+=usr/share/doc/usd/04.csh/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/usd/04.csh
	OLD_FILES+=usr/share/doc/usd/05.dc/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/usd/05.dc
	OLD_FILES+=usr/share/doc/usd/06.bc/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/usd/06.bc
	OLD_FILES+=usr/share/doc/usd/07.mail/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/usd/07.mail
	OLD_FILES+=usr/share/doc/usd/10.exref/paper.ascii.gz
	OLD_FILES+=usr/share/doc/usd/10.exref/summary.ascii.gz
	OLD_DIRS+=usr/share/doc/usd/10.exref
	OLD_FILES+=usr/share/doc/usd/11.edit/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/usd/11.edit
	OLD_FILES+=usr/share/doc/usd/12.vi/paper.ascii.gz
	OLD_FILES+=usr/share/doc/usd/12.vi/summary.ascii.gz
	OLD_FILES+=usr/share/doc/usd/12.vi/viapwh.ascii.gz
	OLD_DIRS+=usr/share/doc/usd/12.vi
	OLD_FILES+=usr/share/doc/usd/13.viref/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/usd/13.viref
	OLD_FILES+=usr/share/doc/usd/18.msdiffs/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/usd/18.msdiffs
	OLD_FILES+=usr/share/doc/usd/19.memacros/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/usd/19.memacros
	OLD_FILES+=usr/share/doc/usd/20.meref/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/usd/20.meref
	OLD_FILES+=usr/share/doc/usd/21.troff/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/usd/21.troff
	OLD_FILES+=usr/share/doc/usd/22.trofftut/paper.ascii.gz
	OLD_DIRS+=usr/share/doc/usd/22.trofftut
	OLD_FILES+=usr/share/doc/usd/Title.ascii.gz
	OLD_FILES+=usr/share/doc/usd/contents.ascii.gz
	OLD_DIRS+=usr/share/doc/usd
	# 20170523: 64-bit inode support, library version bumps
	OLD_LIBS+=lib/libzfs.so.2
	OLD_LIBS+=usr/lib/libarchive.so.6
	OLD_LIBS+=usr/lib/libmilter.so.5
	OLD_LIBS+=usr/lib32/libzfs.so.2
	OLD_LIBS+=usr/lib32/libarchive.so.6
	OLD_LIBS+=usr/lib32/libmilter.so.5
	# 20170427: NATM configuration support removed
	OLD_FILES+=etc/rc.d/atm1
	OLD_FILES+=etc/rc.d/atm2
	OLD_FILES+=etc/rc.d/atm3
	OLD_FILES+=usr/share/man/man8/rc.atm.8.gz
	# 20170426: UMA_ZONE_REFCNT removed
	OLD_FILES+=usr/share/man/man9/uma_find_refcnt.9.gz
	# 20170424: NATM support removed
	OLD_FILES+=rescue/atmconfig
	OLD_FILES+=sbin/atmconfig
	OLD_FILES+=usr/include/bsnmp/snmp_atm.h
	OLD_FILES+=usr/include/dev/utopia/idtphy.h
	OLD_FILES+=usr/include/dev/utopia/suni.h
	OLD_FILES+=usr/include/dev/utopia/utopia.h
	OLD_FILES+=usr/include/dev/utopia/utopia_priv.h
	OLD_DIRS+=usr/include/dev/utopia
	OLD_FILES+=usr/include/net/if_atm.h
	OLD_FILES+=usr/include/netgraph/atm/ng_atm.h
	OLD_FILES+=usr/include/netinet/if_atm.h
	OLD_FILES+=usr/include/netnatm/natm.h
	OLD_FILES+=usr/lib/debug/sbin/atmconfig.debug
	OLD_FILES+=usr/lib/debug/usr/lib/snmp_atm.so.6.debug
	OLD_FILES+=usr/lib/snmp_atm.so
	OLD_LIBS+=usr/lib/snmp_atm.so.6
	OLD_FILES+=usr/share/doc/atm/atmconfig.help
	OLD_FILES+=usr/share/doc/atm/atmconfig_device.help
	OLD_DIRS+=usr/share/doc/atm
	OLD_FILES+=usr/share/man/man3/snmp_atm.3.gz
	OLD_FILES+=usr/share/man/man4/en.4.gz
	OLD_FILES+=usr/share/man/man4/fatm.4.gz
	OLD_FILES+=usr/share/man/man4/hatm.4.gz
	OLD_FILES+=usr/share/man/man4/if_en.4.gz
	OLD_FILES+=usr/share/man/man4/if_fatm.4.gz
	OLD_FILES+=usr/share/man/man4/if_hatm.4.gz
	OLD_FILES+=usr/share/man/man4/if_patm.4.gz
	OLD_FILES+=usr/share/man/man4/natm.4.gz
	OLD_FILES+=usr/share/man/man4/natmip.4.gz
	OLD_FILES+=usr/share/man/man4/ng_atm.4.gz
	OLD_FILES+=usr/share/man/man4/patm.4.gz
	OLD_FILES+=usr/share/man/man4/utopia.4.gz
	OLD_FILES+=usr/share/man/man8/atmconfig.8.gz
	OLD_FILES+=usr/share/man/man9/utopia.9.gz
	OLD_FILES+=usr/share/snmp/defs/atm_freebsd.def
	OLD_FILES+=usr/share/snmp/defs/atm_tree.def
	OLD_FILES+=usr/share/snmp/mibs/BEGEMOT-ATM-FREEBSD-MIB.txt
	OLD_FILES+=usr/share/snmp/mibs/BEGEMOT-ATM.txt
	# 20170420: remove GNU diff
	OLD_FILES+=usr/share/man/man7/diff.7.gz
	# 20170322: rename <x> to <x>_test to match the FreeBSD test suite name scheme
	OLD_FILES+=usr/tests/usr.bin/col/col
	OLD_FILES+=usr/tests/usr.bin/diff/diff
	OLD_FILES+=usr/tests/usr.bin/ident/ident
	OLD_FILES+=usr/tests/usr.bin/mkimg/mkimg
	OLD_FILES+=usr/tests/usr.bin/sdiff/sdiff
	OLD_FILES+=usr/tests/usr.bin/soelim/soelim
	OLD_FILES+=usr/tests/usr.sbin/pw/pw_config
	OLD_FILES+=usr/tests/usr.sbin/pw/pw_etcdir
	OLD_FILES+=usr/tests/usr.sbin/pw/pw_groupadd
	OLD_FILES+=usr/tests/usr.sbin/pw/pw_groupdel
	OLD_FILES+=usr/tests/usr.sbin/pw/pw_groupmod
	OLD_FILES+=usr/tests/usr.sbin/pw/pw_lock
	OLD_FILES+=usr/tests/usr.sbin/pw/pw_useradd
	OLD_FILES+=usr/tests/usr.sbin/pw/pw_userdel
	OLD_FILES+=usr/tests/usr.sbin/pw/pw_usermod
	OLD_FILES+=usr/tests/usr.sbin/pw/pw_usernext
	# 20170319: io_test requires zh_TW.Big5 locale.
	OLD_FILES+=usr/tests/lib/libc/locale/io_test
	# 20170319: remove nls for non supported Big5* locales
	OLD_DIRS+=usr/share/nls/zh_HK.Big5HKSCS
	OLD_DIRS+=usr/share/nls/zh_TW.Big5
	# 20170313: move .../sys/geom/eli/... to .../sys/geom/class/eli/...
	OLD_FILES+=usr/tests/sys/geom/eli/pbkdf2/pbkdf2
	OLD_FILES+=usr/tests/sys/geom/eli/pbkdf2/Kyuafile
	OLD_FILES+=usr/tests/sys/geom/eli/Kyuafile
	OLD_DIRS+=usr/tests/sys/geom/eli/pbkdf2
	OLD_DIRS+=usr/tests/sys/geom/eli
	# 20170313: sbin/ipftest and ipresend temporarily disconnected.
	OLD_FILES+=sbin/ipftest
	OLD_FILES+=sbin/ipresend
	OLD_FILES+=usr/share/man/man1/ipftest.1.gz
	OLD_FILES+=usr/share/man/man1/ipresend.1.gz
	# 20170311: Remove WITHOUT_MANDOCDB option
	OLD_FILES+=usr/share/man/man1/makewhatis.1.gz
	# 20170308: rename some tests
	OLD_FILES+=usr/tests/bin/pwait/pwait
	OLD_FILES+=usr/tests/usr.bin/timeout/timeout
	# 20170307: remove pcap-int.h
	OLD_FILES+=usr/include/pcap-int.h
	# 20170302: new libc++ import which bumps version from 3.9.1 to 4.0.0.
	OLD_FILES+=usr/include/c++/v1/__undef___deallocate
	OLD_FILES+=usr/include/c++/v1/tr1/__undef___deallocate
	# 20170302: new clang import which bumps version from 3.9.1 to 4.0.0.
	OLD_FILES+=usr/lib/clang/3.9.1/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/sanitizer/esan_interface.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/sanitizer/tsan_interface_atomic.h
	OLD_DIRS+=usr/lib/clang/3.9.1/include/sanitizer
	OLD_FILES+=usr/lib/clang/3.9.1/include/__clang_cuda_cmath.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/__clang_cuda_intrinsics.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/__clang_cuda_math_forward_declares.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/__clang_cuda_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/altivec.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/avx512ifmaintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/avx512ifmavlintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/avx512pfintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/avx512vbmiintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/avx512vbmivlintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/avx512vlcdintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/clflushoptintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/cpuid.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/immintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/module.modulemap
	OLD_FILES+=usr/lib/clang/3.9.1/include/msa.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/mwaitxintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/opencl-c.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/pkuintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/vadefs.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/xsavecintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/xsaveintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/xsaveoptintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/xsavesintrin.h
	OLD_FILES+=usr/lib/clang/3.9.1/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/3.9.1/include
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.asan-i386.so
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.asan-x86_64.so
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.stats-i386.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.stats-x86_64.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.stats_client-i386.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.stats_client-x86_64.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.9.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/3.9.1/lib/freebsd
	OLD_DIRS+=usr/lib/clang/3.9.1/lib
	OLD_DIRS+=usr/lib/clang/3.9.1
	# 20170226: SVR4 compatibility removed
	.if ${TARGET_ARCH} == "amd64" \|\| ${TARGET_ARCH} == "i386"
	OLD_FILES+=usr/share/man/man4/streams.4
	OLD_FILES+=usr/share/man/man4/svr4.4
	.endif
	# 20170219: OpenPAM RADULA upgrade removed the libpam tests
	OLD_FILES+=usr/tests/lib/libpam/Kyuafile
	OLD_FILES+=usr/tests/lib/libpam/t_openpam_ctype
	OLD_FILES+=usr/tests/lib/libpam/t_openpam_readlinev
	OLD_FILES+=usr/tests/lib/libpam/t_openpam_readword
	OLD_DIRS+=usr/test/lib/libpam
	# 20170216: remove ahb(4)
	OLD_FILES+=usr/share/man/man4/ahb.4.gz
	# 20170216: remove fea(4)
	OLD_FILES+=usr/share/man/man4/fea.4.gz
	# 20170206: remove bdes(1)
	OLD_FILES+=usr/bin/bdes
	OLD_FILES+=usr/lib/debug/usr/bin/bdes.debug
	OLD_FILES+=usr/share/man/man1/bdes.1.gz
	# 20170206: merged projects/ipsec
	OLD_FILES+=usr/include/netinet/ip_ipsec.h
	OLD_FILES+=usr/include/netinet6/ip6_ipsec.h
	# 20170128: remove pc98 support
	OLD_FILES+=usr/include/dev/ic/i8251.h
	OLD_FILES+=usr/include/dev/ic/i8255.h
	OLD_FILES+=usr/include/dev/ic/rsa.h
	OLD_FILES+=usr/include/dev/ic/wd33c93reg.h
	OLD_FILES+=usr/include/sys/disk/pc98.h
	OLD_FILES+=usr/include/sys/diskpc98.h
	OLD_FILES+=usr/share/man/man4/i386/ct.4.gz
	OLD_FILES+=usr/share/man/man4/i386/snc.4.gz
	OLD_FILES+=usr/share/syscons/keymaps/jp.pc98.iso.kbd
	OLD_FILES+=usr/share/syscons/keymaps/jp.pc98.kbd
	OLD_FILES+=usr/share/vt/keymaps/jp.pc98.iso.kbd
	OLD_FILES+=usr/share/vt/keymaps/jp.pc98.kbd
	# 20170110: Four files from ggate tests consolidated into one
	OLD_FILES+=usr/tests/sys/geom/class/gate/1_test
	OLD_FILES+=usr/tests/sys/geom/class/gate/2_test
	OLD_FILES+=usr/tests/sys/geom/class/gate/3_test
	OLD_FILES+=usr/tests/sys/geom/class/gate/conf.sh
	# 20170103: libbsnmptools.so made into an INTERNALLIB
	OLD_FILES+=usr/lib/libbsnmptools.a
	OLD_FILES+=usr/lib/libbsnmptools_p.a
	OLD_LIBS+=usr/lib/libbsnmptools.so.0
	OLD_LIBS+=usr/lib/libbsnmptools.so
	# 20170102: sysdecode_getfsstat_flags() renamed to sysdecode_getfsstat_mode()
	OLD_FILES+=usr/share/man/man3/sysdecode_getfsstat_flags.3.gz
	# 20161230: libarchive ACL pax test renamed to test_acl_pax_posix1e.tar.uu
	OLD_FILES+=usr/tests/lib/libarchive/test_acl_pax.tar.uu
	# 20161229: Three files from gnop tests consolidated into one
	OLD_FILES+=usr/tests/sys/geom/class/nop/1_test
	OLD_FILES+=usr/tests/sys/geom/class/nop/2_test
	OLD_FILES+=usr/tests/sys/geom/class/nop/conf.sh
	# 20161217: new clang import which bumps version from 3.9.0 to 3.9.1.
	OLD_FILES+=usr/lib/clang/3.9.0/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/sanitizer/esan_interface.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/sanitizer/tsan_interface_atomic.h
	OLD_DIRS+=usr/lib/clang/3.9.0/include/sanitizer
	OLD_FILES+=usr/lib/clang/3.9.0/include/__clang_cuda_cmath.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/__clang_cuda_intrinsics.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/__clang_cuda_math_forward_declares.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/__clang_cuda_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/altivec.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/avx512ifmaintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/avx512ifmavlintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/avx512pfintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/avx512vbmiintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/avx512vbmivlintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/avx512vlcdintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/clflushoptintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/cpuid.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/immintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/module.modulemap
	OLD_FILES+=usr/lib/clang/3.9.0/include/mwaitxintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/opencl-c.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/pkuintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/vadefs.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/xsavecintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/xsaveintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/xsaveoptintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/xsavesintrin.h
	OLD_FILES+=usr/lib/clang/3.9.0/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/3.9.0/include
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.asan-i386.so
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.asan-x86_64.so
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.stats-i386.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.stats-x86_64.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.stats_client-i386.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.stats_client-x86_64.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.9.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/3.9.0/lib/freebsd
	OLD_DIRS+=usr/lib/clang/3.9.0/lib
	OLD_DIRS+=usr/lib/clang/3.9.0
	# 20161205: libproc version bump
	OLD_LIBS+=usr/lib/libproc.so.3
	OLD_LIBS+=usr/lib32/libproc.so.3
	# 20161127: Remove vm_page_cache(9)
	OLD_FILES+=usr/share/man/man9/vm_page_cache.9.gz
	# 20161124: new clang import which bumps version from 3.8.0 to 3.9.0.
	OLD_FILES+=usr/lib/clang/3.8.0/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/sanitizer/tsan_interface_atomic.h
	OLD_DIRS+=usr/lib/clang/3.8.0/include/sanitizer
	OLD_FILES+=usr/lib/clang/3.8.0/include/__clang_cuda_runtime_wrapper.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/altivec.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/cpuid.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/immintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/module.modulemap
	OLD_FILES+=usr/lib/clang/3.8.0/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/pkuintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/vadefs.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/xsavecintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/xsaveintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/xsaveoptintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/xsavesintrin.h
	OLD_FILES+=usr/lib/clang/3.8.0/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/3.8.0/include
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.asan-i386.so
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.asan-x86_64.so
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.8.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/3.8.0/lib/freebsd
	OLD_DIRS+=usr/lib/clang/3.8.0/lib
	OLD_DIRS+=usr/lib/clang/3.8.0
	# 20161121: Hyper-V manuals only apply to amd64 and i386.
	.if ${TARGET_ARCH} != "amd64" && ${TARGET_ARCH} != "i386"
	OLD_FILES+=usr/share/man/man4/hv_kvp.4.gz
	OLD_FILES+=usr/share/man/man4/hv_netvsc.4.gz
	OLD_FILES+=usr/share/man/man4/hv_storvsc.4.gz
	OLD_FILES+=usr/share/man/man4/hv_utils.4.gz
	OLD_FILES+=usr/share/man/man4/hv_vmbus.4.gz
	OLD_FILES+=usr/share/man/man4/hv_vss.4.gz
	.endif
	# 20161118: Remove hv_ata_pci_disengage(4)
	OLD_FILES+=usr/share/man/man4/hv_ata_pci_disengage.4.gz
	# 20161017: urtwn(4) was merged into rtwn(4)
	OLD_FILES+=usr/share/man/man4/if_urtwn.4.gz
	OLD_FILES+=usr/share/man/man4/urtwn.4.gz
	OLD_FILES+=usr/share/man/man4/urtwnfw.4.gz
	# 20161015: Remove GNU rcs
	OLD_FILES+=usr/bin/ci
	OLD_FILES+=usr/bin/co
	OLD_FILES+=usr/bin/merge
	OLD_FILES+=usr/bin/rcs
	OLD_FILES+=usr/bin/rcsclean
	OLD_FILES+=usr/bin/rcsdiff
	OLD_FILES+=usr/bin/rcsfreeze
	OLD_FILES+=usr/bin/rcsmerge
	OLD_FILES+=usr/bin/rlog
	OLD_FILES+=usr/share/doc/psd/13.rcs/paper.ascii.gz
	OLD_FILES+=usr/share/doc/psd/13.rcs/rcs_func.ascii.gz
	OLD_DIRS+=usr/share/doc/psd/13.rcs
	OLD_FILES+=usr/share/man/man1/ci.1.gz
	OLD_FILES+=usr/share/man/man1/co.1.gz
	OLD_FILES+=usr/share/man/man1/merge.1.gz
	OLD_FILES+=usr/share/man/man1/rcs.1.gz
	OLD_FILES+=usr/share/man/man1/rcsclean.1.gz
	OLD_FILES+=usr/share/man/man1/rcsdiff.1.gz
	OLD_FILES+=usr/share/man/man1/rcsfreeze.1.gz
	OLD_FILES+=usr/share/man/man1/rcsintro.1.gz
	OLD_FILES+=usr/share/man/man1/rcsmerge.1.gz
	OLD_FILES+=usr/share/man/man1/rlog.1.gz
	OLD_FILES+=usr/share/man/man5/rcsfile.5.gz
	# 20161010: remove link to removed m_getclr(9) macro
	OLD_FILES+=usr/share/man/man9/m_getclr.9.gz
	# 20161003: MK_ELFCOPY_AS_OBJCOPY option retired
	OLD_FILES+=usr/bin/elfcopy
	OLD_FILES+=usr/share/man/man1/elfcopy.1.gz
	# 20160906: libkqueue tests moved to /usr/tests/sys/kqueue/libkqueue
	OLD_FILES+=usr/tests/sys/kqueue/kqtest
	OLD_FILES+=usr/tests/sys/kqueue/kqueue_test
	# 20160903: idle page zeroing support removed
	OLD_FILES+=usr/share/man/man9/pmap_zero_idle.9.gz
	# 20160901: Remove digi(4)
	OLD_FILES+=usr/share/man/man4/digi.4.gz
	# 20160819: Remove ie(4)
	OLD_FILES+=usr/share/man/man4/i386/ie.4.gz
	# 20160819: Remove spic(4)
	OLD_FILES+=usr/share/man/man4/spic.4.gz
	# 20160819: Remove wl(4) and wlconfig(8)
	OLD_FILES+=usr/share/man/man4/i386/wl.4.gz
	OLD_FILES+=usr/sbin/wlconfig
	OLD_FILES+=usr/share/man/man8/i386/wlconfig.8.gz
	# 20160819: Remove si(4) and sicontrol(8)
	OLD_FILES+=usr/share/man/man4/si.4.gz
	OLD_FILES+=usr/sbin/sicontrol
	OLD_FILES+=usr/share/man/man8/sicontrol.8.gz
	# 20160819: Remove scd(4)
	OLD_FILES+=usr/share/man/man4/scd.4.gz
	# 20160815: Remove mcd(4)
	OLD_FILES+=usr/share/man/man4/mcd.4.gz
	# 20160805: lockmgr_waiters(9) removed
	OLD_FILES+=usr/share/man/man9/lockmgr_waiters.9.gz
	# 20160703: POSIXify locales with variants
	OLD_FILES+=usr/share/locale/zh_Hant_TW.UTF-8/LC_COLLATE
	OLD_FILES+=usr/share/locale/zh_Hant_TW.UTF-8/LC_CTYPE
	OLD_FILES+=usr/share/locale/zh_Hant_TW.UTF-8/LC_MESSAGES
	OLD_FILES+=usr/share/locale/zh_Hant_TW.UTF-8/LC_MONETARY
	OLD_FILES+=usr/share/locale/zh_Hant_TW.UTF-8/LC_NUMERIC
	OLD_FILES+=usr/share/locale/zh_Hant_TW.UTF-8/LC_TIME
	OLD_DIRS+=usr/share/locale/zh_Hant_TW.UTF-8
	OLD_FILES+=usr/share/locale/zh_Hant_TW.Big5/LC_COLLATE
	OLD_FILES+=usr/share/locale/zh_Hant_TW.Big5/LC_CTYPE
	OLD_FILES+=usr/share/locale/zh_Hant_TW.Big5/LC_MESSAGES
	OLD_FILES+=usr/share/locale/zh_Hant_TW.Big5/LC_MONETARY
	OLD_FILES+=usr/share/locale/zh_Hant_TW.Big5/LC_NUMERIC
	OLD_FILES+=usr/share/locale/zh_Hant_TW.Big5/LC_TIME
	OLD_DIRS+=usr/share/locale/zh_Hant_TW.Big5
	OLD_FILES+=usr/share/locale/zh_Hant_HK.UTF-8/LC_COLLATE
	OLD_FILES+=usr/share/locale/zh_Hant_HK.UTF-8/LC_CTYPE
	OLD_FILES+=usr/share/locale/zh_Hant_HK.UTF-8/LC_MESSAGES
	OLD_FILES+=usr/share/locale/zh_Hant_HK.UTF-8/LC_MONETARY
	OLD_FILES+=usr/share/locale/zh_Hant_HK.UTF-8/LC_NUMERIC
	OLD_FILES+=usr/share/locale/zh_Hant_HK.UTF-8/LC_TIME
	OLD_DIRS+=usr/share/locale/zh_Hant_HK.UTF-8
	OLD_FILES+=usr/share/locale/zh_Hans_CN.eucCN/LC_COLLATE
	OLD_FILES+=usr/share/locale/zh_Hans_CN.eucCN/LC_CTYPE
	OLD_FILES+=usr/share/locale/zh_Hans_CN.eucCN/LC_MESSAGES
	OLD_FILES+=usr/share/locale/zh_Hans_CN.eucCN/LC_MONETARY
	OLD_FILES+=usr/share/locale/zh_Hans_CN.eucCN/LC_NUMERIC
	OLD_FILES+=usr/share/locale/zh_Hans_CN.eucCN/LC_TIME
	OLD_DIRS+=usr/share/locale/zh_Hans_CN.eucCN
	OLD_FILES+=usr/share/locale/zh_Hans_CN.UTF-8/LC_COLLATE
	OLD_FILES+=usr/share/locale/zh_Hans_CN.UTF-8/LC_CTYPE
	OLD_FILES+=usr/share/locale/zh_Hans_CN.UTF-8/LC_MESSAGES
	OLD_FILES+=usr/share/locale/zh_Hans_CN.UTF-8/LC_MONETARY
	OLD_FILES+=usr/share/locale/zh_Hans_CN.UTF-8/LC_NUMERIC
	OLD_FILES+=usr/share/locale/zh_Hans_CN.UTF-8/LC_TIME
	OLD_DIRS+=usr/share/locale/zh_Hans_CN.UTF-8
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GBK/LC_COLLATE
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GBK/LC_CTYPE
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GBK/LC_MESSAGES
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GBK/LC_MONETARY
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GBK/LC_NUMERIC
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GBK/LC_TIME
	OLD_DIRS+=usr/share/locale/zh_Hans_CN.GBK
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GB2312/LC_COLLATE
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GB2312/LC_CTYPE
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GB2312/LC_MESSAGES
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GB2312/LC_MONETARY
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GB2312/LC_NUMERIC
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GB2312/LC_TIME
	OLD_DIRS+=usr/share/locale/zh_Hans_CN.GB2312
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GB18030/LC_COLLATE
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GB18030/LC_CTYPE
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GB18030/LC_MESSAGES
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GB18030/LC_MONETARY
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GB18030/LC_NUMERIC
	OLD_FILES+=usr/share/locale/zh_Hans_CN.GB18030/LC_TIME
	OLD_DIRS+=usr/share/locale/zh_Hans_CN.GB18030
	OLD_FILES+=usr/share/locale/sr_Latn_RS.UTF-8/LC_COLLATE
	OLD_FILES+=usr/share/locale/sr_Latn_RS.UTF-8/LC_CTYPE
	OLD_FILES+=usr/share/locale/sr_Latn_RS.UTF-8/LC_MESSAGES
	OLD_FILES+=usr/share/locale/sr_Latn_RS.UTF-8/LC_MONETARY
	OLD_FILES+=usr/share/locale/sr_Latn_RS.UTF-8/LC_NUMERIC
	OLD_FILES+=usr/share/locale/sr_Latn_RS.UTF-8/LC_TIME
	OLD_DIRS+=usr/share/locale/sr_Latn_RS.UTF-8
	OLD_FILES+=usr/share/locale/sr_Latn_RS.ISO8859-2/LC_COLLATE
	OLD_FILES+=usr/share/locale/sr_Latn_RS.ISO8859-2/LC_CTYPE
	OLD_FILES+=usr/share/locale/sr_Latn_RS.ISO8859-2/LC_MESSAGES
	OLD_FILES+=usr/share/locale/sr_Latn_RS.ISO8859-2/LC_MONETARY
	OLD_FILES+=usr/share/locale/sr_Latn_RS.ISO8859-2/LC_NUMERIC
	OLD_FILES+=usr/share/locale/sr_Latn_RS.ISO8859-2/LC_TIME
	OLD_DIRS+=usr/share/locale/sr_Latn_RS.ISO8859-2
	OLD_FILES+=usr/share/locale/sr_Cyrl_RS.UTF-8/LC_COLLATE
	OLD_FILES+=usr/share/locale/sr_Cyrl_RS.UTF-8/LC_CTYPE
	OLD_FILES+=usr/share/locale/sr_Cyrl_RS.UTF-8/LC_MESSAGES
	OLD_FILES+=usr/share/locale/sr_Cyrl_RS.UTF-8/LC_MONETARY
	OLD_FILES+=usr/share/locale/sr_Cyrl_RS.UTF-8/LC_NUMERIC
	OLD_FILES+=usr/share/locale/sr_Cyrl_RS.UTF-8/LC_TIME
	OLD_DIRS+=usr/share/locale/sr_Cyrl_RS.UTF-8
	OLD_FILES+=usr/share/locale/sr_Cyrl_RS.ISO8859-5/LC_COLLATE
	OLD_FILES+=usr/share/locale/sr_Cyrl_RS.ISO8859-5/LC_CTYPE
	OLD_FILES+=usr/share/locale/sr_Cyrl_RS.ISO8859-5/LC_MESSAGES
	OLD_FILES+=usr/share/locale/sr_Cyrl_RS.ISO8859-5/LC_MONETARY
	OLD_FILES+=usr/share/locale/sr_Cyrl_RS.ISO8859-5/LC_NUMERIC
	OLD_FILES+=usr/share/locale/sr_Cyrl_RS.ISO8859-5/LC_TIME
	OLD_DIRS+=usr/share/locale/sr_Cyrl_RS.ISO8859-5
	OLD_FILES+=usr/share/locale/mn_Cyrl_MN.UTF-8/LC_COLLATE
	OLD_FILES+=usr/share/locale/mn_Cyrl_MN.UTF-8/LC_CTYPE
	OLD_FILES+=usr/share/locale/mn_Cyrl_MN.UTF-8/LC_MESSAGES
	OLD_FILES+=usr/share/locale/mn_Cyrl_MN.UTF-8/LC_MONETARY
	OLD_FILES+=usr/share/locale/mn_Cyrl_MN.UTF-8/LC_NUMERIC
	OLD_FILES+=usr/share/locale/mn_Cyrl_MN.UTF-8/LC_TIME
	OLD_DIRS+=usr/share/locale/mn_Cyrl_MN.UTF-8
	OLD_FILES+=usr/share/locale/kk_Cyrl_KZ.UTF-8/LC_COLLATE
	OLD_FILES+=usr/share/locale/kk_Cyrl_KZ.UTF-8/LC_CTYPE
	OLD_FILES+=usr/share/locale/kk_Cyrl_KZ.UTF-8/LC_MESSAGES
	OLD_FILES+=usr/share/locale/kk_Cyrl_KZ.UTF-8/LC_MONETARY
	OLD_FILES+=usr/share/locale/kk_Cyrl_KZ.UTF-8/LC_NUMERIC
	OLD_FILES+=usr/share/locale/kk_Cyrl_KZ.UTF-8/LC_TIME
	OLD_DIRS+=usr/share/locale/kk_Cyrl_KZ.UTF-8
	# 20160608: removed pam_verbose_error
	OLD_LIBS+=usr/lib/libpam.so.5
	OLD_LIBS+=usr/lib/pam_chroot.so.5
	OLD_LIBS+=usr/lib/pam_deny.so.5
	OLD_LIBS+=usr/lib/pam_echo.so.5
	OLD_LIBS+=usr/lib/pam_exec.so.5
	OLD_LIBS+=usr/lib/pam_ftpusers.so.5
	OLD_LIBS+=usr/lib/pam_group.so.5
	OLD_LIBS+=usr/lib/pam_guest.so.5
	OLD_LIBS+=usr/lib/pam_krb5.so.5
	OLD_LIBS+=usr/lib/pam_ksu.so.5
	OLD_LIBS+=usr/lib/pam_lastlog.so.5
	OLD_LIBS+=usr/lib/pam_login_access.so.5
	OLD_LIBS+=usr/lib/pam_nologin.so.5
	OLD_LIBS+=usr/lib/pam_opie.so.5
	OLD_LIBS+=usr/lib/pam_opieaccess.so.5
	OLD_LIBS+=usr/lib/pam_passwdqc.so.5
	OLD_LIBS+=usr/lib/pam_permit.so.5
	OLD_LIBS+=usr/lib/pam_radius.so.5
	OLD_LIBS+=usr/lib/pam_rhosts.so.5
	OLD_LIBS+=usr/lib/pam_rootok.so.5
	OLD_LIBS+=usr/lib/pam_securetty.so.5
	OLD_LIBS+=usr/lib/pam_self.so.5
	OLD_LIBS+=usr/lib/pam_ssh.so.5
	OLD_LIBS+=usr/lib/pam_tacplus.so.5
	OLD_LIBS+=usr/lib/pam_unix.so.5
	OLD_LIBS+=usr/lib32/libpam.so.5
	OLD_LIBS+=usr/lib32/pam_chroot.so.5
	OLD_LIBS+=usr/lib32/pam_deny.so.5
	OLD_LIBS+=usr/lib32/pam_echo.so.5
	OLD_LIBS+=usr/lib32/pam_exec.so.5
	OLD_LIBS+=usr/lib32/pam_ftpusers.so.5
	OLD_LIBS+=usr/lib32/pam_group.so.5
	OLD_LIBS+=usr/lib32/pam_guest.so.5
	OLD_LIBS+=usr/lib32/pam_krb5.so.5
	OLD_LIBS+=usr/lib32/pam_ksu.so.5
	OLD_LIBS+=usr/lib32/pam_lastlog.so.5
	OLD_LIBS+=usr/lib32/pam_login_access.so.5
	OLD_LIBS+=usr/lib32/pam_nologin.so.5
	OLD_LIBS+=usr/lib32/pam_opie.so.5
	OLD_LIBS+=usr/lib32/pam_opieaccess.so.5
	OLD_LIBS+=usr/lib32/pam_passwdqc.so.5
	OLD_LIBS+=usr/lib32/pam_permit.so.5
	OLD_LIBS+=usr/lib32/pam_radius.so.5
	OLD_LIBS+=usr/lib32/pam_rhosts.so.5
	OLD_LIBS+=usr/lib32/pam_rootok.so.5
	OLD_LIBS+=usr/lib32/pam_securetty.so.5
	OLD_LIBS+=usr/lib32/pam_self.so.5
	OLD_LIBS+=usr/lib32/pam_ssh.so.5
	OLD_LIBS+=usr/lib32/pam_tacplus.so.5
	OLD_LIBS+=usr/lib32/pam_unix.so.5
	# 20160523: remove extranous ALTQ files
	OLD_FILES+=usr/include/altq/altq_codel.h
	OLD_FILES+=usr/include/altq/altq_fairq.h
	# 20160519: remove DTrace Toolkit from base
	OLD_FILES+=usr/sbin/dtruss
	OLD_FILES+=usr/share/dtrace/toolkit/execsnoop
	OLD_FILES+=usr/share/dtrace/toolkit/hotkernel
	OLD_FILES+=usr/share/dtrace/toolkit/hotuser
	OLD_FILES+=usr/share/dtrace/toolkit/opensnoop
	OLD_FILES+=usr/share/dtrace/toolkit/procsystime
	OLD_DIRS+=usr/share/dtrace/toolkit
	OLD_FILES+=usr/share/man/man1/dtruss.1.gz
	# 20160519: stale MLINK removed
	OLD_FILES+=usr/share/man/man9/rman_await_resource.9.gz
	# 20160517: ReiserFS removed
	OLD_FILES+=usr/share/man/man5/reiserfs.5.gz
	# 20160504: tests rework
	OLD_FILES+=usr/tests/lib/libc/regex/data/README
	# 20160430: kvm_getfiles(3) removed from kvm(3)
	OLD_LIBS+=lib/libkvm.so.6
	OLD_LIBS+=usr/lib32/libkvm.so.6
	OLD_FILES+=usr/share/man/man3/kvm_getfiles.3.gz
	# 20160423: remove mroute6d
	OLD_FILES+=etc/rc.d/mroute6d
	# 20160419: rename units.lib -> definitions.units
	OLD_FILES+=usr/share/misc/units.lib
	# 20160419: remove Big5HKSCS locales
	OLD_FILES+=usr/share/locale/zh_HK.Big5HKSCS/LC_COLLATE
	OLD_FILES+=usr/share/locale/zh_HK.Big5HKSCS/LC_CTYPE
	OLD_FILES+=usr/share/locale/zh_HK.Big5HKSCS/LC_MESSAGES
	OLD_FILES+=usr/share/locale/zh_HK.Big5HKSCS/LC_MONETARY
	OLD_FILES+=usr/share/locale/zh_HK.Big5HKSCS/LC_NUMERIC
	OLD_FILES+=usr/share/locale/zh_HK.Big5HKSCS/LC_TIME
	OLD_DIRS+=usr/share/locale/zh_HK.Big5HKSCS
	OLD_FILES+=usr/share/locale/zh_Hant_HK.Big5HKSCS/LC_COLLATE
	OLD_FILES+=usr/share/locale/zh_Hant_HK.Big5HKSCS/LC_CTYPE
	OLD_FILES+=usr/share/locale/zh_Hant_HK.Big5HKSCS/LC_MESSAGES
	OLD_FILES+=usr/share/locale/zh_Hant_HK.Big5HKSCS/LC_MONETARY
	OLD_FILES+=usr/share/locale/zh_Hant_HK.Big5HKSCS/LC_NUMERIC
	OLD_FILES+=usr/share/locale/zh_Hant_HK.Big5HKSCS/LC_TIME
	OLD_DIRS+=usr/share/locale/zh_Hant_HK.Big5HKSCS
	# 20160317: rman_res_t size bump to uintmax_t
	OLD_LIBS+=usr/lib/libdevinfo.so.5
	OLD_LIBS+=usr/lib32/libdevinfo.so.5
	# 20160305: new clang import which bumps version from 3.7.1 to 3.8.0.
	OLD_FILES+=usr/bin/macho-dump
	OLD_FILES+=usr/bin/tblgen
	OLD_FILES+=usr/lib/clang/3.7.1/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/sanitizer/tsan_interface_atomic.h
	OLD_DIRS+=usr/lib/clang/3.7.1/include/sanitizer
	OLD_FILES+=usr/lib/clang/3.7.1/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/altivec.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/cpuid.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/immintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/module.modulemap
	OLD_FILES+=usr/lib/clang/3.7.1/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/vadefs.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/3.7.1/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/3.7.1/include
	OLD_FILES+=usr/lib/clang/3.7.1/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/3.7.1/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/3.7.1/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/3.7.1/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/3.7.1/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.7.1/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/3.7.1/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/3.7.1/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/3.7.1/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/3.7.1/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/3.7.1/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/3.7.1/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/3.7.1/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/3.7.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.7.1/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/3.7.1/lib/freebsd
	OLD_DIRS+=usr/lib/clang/3.7.1/lib
	OLD_DIRS+=usr/lib/clang/3.7.1
	OLD_FILES+=usr/share/man/man1/tblgen.1.gz
	# 20160301: Remove taskqueue_enqueue_fast
	OLD_FILES+=usr/share/man/man9/taskqueue_enqueue_fast.9.gz
	# 20160225: Remove casperd and libcapsicum.
	OLD_FILES+=sbin/casperd
	OLD_FILES+=etc/rc.d/casperd
	OLD_FILES+=usr/share/man/man8/casperd.8.gz
	OLD_FILES+=usr/include/libcapsicum.h
	OLD_FILES+=usr/include/libcapsicum_service.h
	OLD_FILES+=usr/include/libcapsicum.h
	OLD_FILES+=usr/share/man/man3/libcapsicum.3.gz
	OLD_FILES+=usr/include/libcapsicum_dns.h
	OLD_FILES+=usr/include/libcapsicum_grp.h
	OLD_FILES+=usr/include/libcapsicum_impl.h
	OLD_FILES+=usr/include/libcapsicum_pwd.h
	OLD_FILES+=usr/include/libcapsicum_random.h
	OLD_FILES+=usr/include/libcapsicum_sysctl.h
	OLD_FILES+=libexec/casper/dns
	OLD_FILES+=libexec/casper/grp
	OLD_FILES+=libexec/casper/pwd
	OLD_FILES+=libexec/casper/random
	OLD_FILES+=libexec/casper/sysctl
	OLD_FILES+=libexec/casper/.debug/random.debug
	OLD_FILES+=libexec/casper/.debug/dns.debug
	OLD_FILES+=libexec/casper/.debug/sysctl.debug
	OLD_FILES+=libexec/casper/.debug/pwd.debug
	OLD_FILES+=libexec/casper/.debug/grp.debug
	OLD_DIRS+=libexec/casper/.debug
	OLD_DIRS+=libexec/casper
	OLD_FILES+=usr/lib/libcapsicum.a
	OLD_FILES+=usr/lib/libcapsicum.so
	OLD_LIBS+=lib/libcapsicum.so.0
	OLD_FILES+=usr/lib/libcapsicum_p.a
	OLD_FILES+=usr/lib32/libcapsicum.a
	OLD_FILES+=usr/lib32/libcapsicum.so
	OLD_LIBS+=usr/lib32/libcapsicum.so.0
	OLD_FILES+=usr/lib32/libcapsicum_p.a
	# 20160223: functionality from mkulzma(1) merged into mkuzip(1)
	OLD_FILES+=usr/bin/mkulzma
	OLD_FILES+=usr/share/man/man4/geom_uncompress.4.gz
	OLD_FILES+=usr/share/man/man8/mkulzma.8.gz
	# 20160211: Remove obsolete unbound-control-setup
	OLD_FILES+=usr/sbin/unbound-control-setup
	# 20160121: cc.h moved
	OLD_FILES+=usr/include/netinet/cc.h
	# 20160116: Update mandoc to cvs snapshot 20160116
	OLD_FILES+=usr/share/mdocml/example.style.css
	OLD_FILES+=usr/share/mdocml/style.css
	OLD_DIRS+=usr/share/mdocml
	# 20160114: SA-16:06.snmpd
	OLD_FILES+=usr/share/examples/etc/snmpd.config
	# 20160107: GNU ld installed as ld.bfd and linked as ld
	OLD_FILES+=usr/lib/debug/usr/bin/ld.debug
	# 20151225: new clang import which bumps version from 3.7.0 to 3.7.1.
	OLD_FILES+=usr/lib/clang/3.7.0/include/sanitizer/allocator_interface.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/sanitizer/asan_interface.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/sanitizer/common_interface_defs.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/sanitizer/coverage_interface.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/sanitizer/dfsan_interface.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/sanitizer/linux_syscall_hooks.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/sanitizer/lsan_interface.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/sanitizer/msan_interface.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/sanitizer/tsan_interface_atomic.h
	OLD_DIRS+=usr/lib/clang/3.7.0/include/sanitizer
	OLD_FILES+=usr/lib/clang/3.7.0/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/altivec.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/avx512cdintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/avx512dqintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/avx512vldqintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/cpuid.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/cuda_builtin_vars.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/fxsrintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/htmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/htmxlintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/immintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/module.modulemap
	OLD_FILES+=usr/lib/clang/3.7.0/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/s390intrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/vadefs.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/vecintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/xopintrin.h
	OLD_FILES+=usr/lib/clang/3.7.0/include/xtestintrin.h
	OLD_DIRS+=usr/lib/clang/3.7.0/include
	OLD_FILES+=usr/lib/clang/3.7.0/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/3.7.0/lib/freebsd/libclang_rt.asan-preinit-i386.a
	OLD_FILES+=usr/lib/clang/3.7.0/lib/freebsd/libclang_rt.asan-preinit-x86_64.a
	OLD_FILES+=usr/lib/clang/3.7.0/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/3.7.0/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.7.0/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/3.7.0/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/3.7.0/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/3.7.0/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/3.7.0/lib/freebsd/libclang_rt.safestack-i386.a
	OLD_FILES+=usr/lib/clang/3.7.0/lib/freebsd/libclang_rt.safestack-x86_64.a
	OLD_FILES+=usr/lib/clang/3.7.0/lib/freebsd/libclang_rt.ubsan_standalone-i386.a
	OLD_FILES+=usr/lib/clang/3.7.0/lib/freebsd/libclang_rt.ubsan_standalone-x86_64.a
	OLD_FILES+=usr/lib/clang/3.7.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.7.0/lib/freebsd/libclang_rt.ubsan_standalone_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/3.7.0/lib/freebsd
	OLD_DIRS+=usr/lib/clang/3.7.0/lib
	OLD_DIRS+=usr/lib/clang/3.7.0
	# 20151130: libelf moved from /usr/lib to /lib (libkvm dependency in r291406)
	OLD_LIBS+=usr/lib/libelf.so.2
	# 20151115: Fox bad upgrade scheme
	OLD_FILES+=usr/share/locale/zh_CN.GB18030/zh_Hans_CN.GB18030
	OLD_FILES+=usr/share/locale/zh_CN.GB2312/zh_Hans_CN.GB2312
	OLD_FILES+=usr/share/locale/zh_CN.GBK/zh_Hans_CN.GBK
	OLD_FILES+=usr/share/locale/zh_CN.UTF-8/zh_Hans_CN.UTF-8
	OLD_FILES+=usr/share/locale/zh_CN.eucCN/zh_Hans_CN.eucCN
	OLD_FILES+=usr/share/locale/zh_TW.Big5/zh_Hant_TW.Big5
	OLD_FILES+=usr/share/locale/zh_TW.UTF-8/zh_Hant_TW.UTF-8
	# 20151107: String collation improvements
	OLD_FILES+=usr/share/locale/UTF-8/LC_CTYPE
	OLD_DIRS+=usr/share/locale/UTF-8
	OLD_FILES+=usr/share/locale/kk_KZ.PT154/LC_COLLATE
	OLD_FILES+=usr/share/locale/kk_KZ.PT154/LC_CTYPE
	OLD_FILES+=usr/share/locale/kk_KZ.PT154/LC_MESSAGES
	OLD_FILES+=usr/share/locale/kk_KZ.PT154/LC_MONETARY
	OLD_FILES+=usr/share/locale/kk_KZ.PT154/LC_NUMERIC
	OLD_FILES+=usr/share/locale/kk_KZ.PT154/LC_TIME
	OLD_DIRS+=usr/share/locale/kk_KZ.PT154/
	OLD_FILES+=usr/share/locale/la_LN.ISO8859-1/LC_COLLATE
	OLD_FILES+=usr/share/locale/la_LN.ISO8859-1/LC_CTYPE
	OLD_FILES+=usr/share/locale/la_LN.ISO8859-1/LC_TIME
	OLD_DIRS+=usr/share/locale/la_LN.ISO8859-1
	OLD_FILES+=usr/share/locale/la_LN.ISO8859-13/LC_COLLATE
	OLD_FILES+=usr/share/locale/la_LN.ISO8859-13/LC_CTYPE
	OLD_DIRS+=usr/share/locale/la_LN.ISO8859-13
	OLD_FILES+=usr/share/locale/la_LN.ISO8859-15/LC_COLLATE
	OLD_FILES+=usr/share/locale/la_LN.ISO8859-15/LC_CTYPE
	OLD_FILES+=usr/share/locale/la_LN.ISO8859-15/LC_TIME
	OLD_DIRS+=usr/share/locale/la_LN.ISO8859-15
	OLD_FILES+=usr/share/locale/la_LN.ISO8859-2/LC_COLLATE
	OLD_FILES+=usr/share/locale/la_LN.ISO8859-2/LC_CTYPE
	OLD_FILES+=usr/share/locale/la_LN.ISO8859-2/LC_TIME
	OLD_DIRS+=usr/share/locale/la_LN.ISO8859-2
	OLD_FILES+=usr/share/locale/la_LN.ISO8859-4/LC_COLLATE
	OLD_FILES+=usr/share/locale/la_LN.ISO8859-4/LC_CTYPE
	OLD_FILES+=usr/share/locale/la_LN.ISO8859-4/LC_TIME
	OLD_DIRS+=usr/share/locale/la_LN.ISO8859-4
	OLD_FILES+=usr/share/locale/la_LN.US-ASCII/LC_COLLATE
	OLD_FILES+=usr/share/locale/la_LN.US-ASCII/LC_CTYPE
	OLD_FILES+=usr/share/locale/la_LN.US-ASCII/LC_TIME
	OLD_DIRS+=usr/share/locale/la_LN.US-ASCII
	OLD_FILES+=usr/share/locale/lt_LT.ISO8859-4/LC_MESSAGES
	OLD_FILES+=usr/share/locale/lt_LT.ISO8859-4/LC_TIME
	OLD_FILES+=usr/share/locale/lt_LT.ISO8859-4/LC_COLLATE
	OLD_FILES+=usr/share/locale/lt_LT.ISO8859-4/LC_MONETARY
	OLD_FILES+=usr/share/locale/lt_LT.ISO8859-4/LC_CTYPE
	OLD_FILES+=usr/share/locale/lt_LT.ISO8859-4/LC_NUMERIC
	OLD_DIRS+=usr/share/locale/lt_LT.ISO8859-4
	OLD_FILES+=usr/share/locale/no_NO.ISO8859-1/LC_COLLATE
	OLD_FILES+=usr/share/locale/no_NO.ISO8859-1/LC_CTYPE
	OLD_FILES+=usr/share/locale/no_NO.ISO8859-1/LC_MESSAGES
	OLD_FILES+=usr/share/locale/no_NO.ISO8859-1/LC_MONETARY
	OLD_FILES+=usr/share/locale/no_NO.ISO8859-1/LC_NUMERIC
	OLD_FILES+=usr/share/locale/no_NO.ISO8859-1/LC_TIME
	OLD_DIRS+=usr/share/locale/no_NO.ISO8859-1
	OLD_FILES+=usr/share/locale/no_NO.ISO8859-15/LC_COLLATE
	OLD_FILES+=usr/share/locale/no_NO.ISO8859-15/LC_CTYPE
	OLD_FILES+=usr/share/locale/no_NO.ISO8859-15/LC_MESSAGES
	OLD_FILES+=usr/share/locale/no_NO.ISO8859-15/LC_MONETARY
	OLD_FILES+=usr/share/locale/no_NO.ISO8859-15/LC_NUMERIC
	OLD_FILES+=usr/share/locale/no_NO.ISO8859-15/LC_TIME
	OLD_DIRS+=usr/share/locale/no_NO.ISO8859-15
	OLD_FILES+=usr/share/locale/no_NO.UTF-8/LC_COLLATE
	OLD_FILES+=usr/share/locale/no_NO.UTF-8/LC_CTYPE
	OLD_FILES+=usr/share/locale/no_NO.UTF-8/LC_MESSAGES
	OLD_FILES+=usr/share/locale/no_NO.UTF-8/LC_MONETARY
	OLD_FILES+=usr/share/locale/no_NO.UTF-8/LC_NUMERIC
	OLD_FILES+=usr/share/locale/no_NO.UTF-8/LC_TIME
	OLD_DIRS+=usr/share/locale/no_NO.UTF-8
	OLD_FILES+=usr/share/locale/sr_YU.ISO8859-2/LC_COLLATE
	OLD_FILES+=usr/share/locale/sr_YU.ISO8859-2/LC_TIME
	OLD_FILES+=usr/share/locale/sr_YU.ISO8859-2/LC_CTYPE
	OLD_FILES+=usr/share/locale/sr_YU.ISO8859-2/LC_MESSAGES
	OLD_FILES+=usr/share/locale/sr_YU.ISO8859-2/LC_NUMERIC
	OLD_FILES+=usr/share/locale/sr_YU.ISO8859-2/LC_MONETARY
	OLD_DIRS+=usr/share/locale/sr_YU.ISO8859-2
	OLD_FILES+=usr/share/locale/sr_YU.ISO8859-5/LC_COLLATE
	OLD_FILES+=usr/share/locale/sr_YU.ISO8859-5/LC_MONETARY
	OLD_FILES+=usr/share/locale/sr_YU.ISO8859-5/LC_NUMERIC
	OLD_FILES+=usr/share/locale/sr_YU.ISO8859-5/LC_CTYPE
	OLD_FILES+=usr/share/locale/sr_YU.ISO8859-5/LC_TIME
	OLD_FILES+=usr/share/locale/sr_YU.ISO8859-5/LC_MESSAGES
	OLD_DIRS+=usr/share/locale/sr_YU.ISO8859-5
	OLD_FILES+=usr/share/locale/sr_YU.UTF-8/LC_COLLATE
	OLD_FILES+=usr/share/locale/sr_YU.UTF-8/LC_MONETARY
	OLD_FILES+=usr/share/locale/sr_YU.UTF-8/LC_CTYPE
	OLD_FILES+=usr/share/locale/sr_YU.UTF-8/LC_TIME
	OLD_FILES+=usr/share/locale/sr_YU.UTF-8/LC_NUMERIC
	OLD_FILES+=usr/share/locale/sr_YU.UTF-8/LC_MESSAGES
	OLD_DIRS+=usr/share/locale/sr_YU.UTF-8
	# 20151101: added missing _test suffix on multiple tests in lib/libc
	OLD_FILES+=usr/tests/lib/libc/c063/faccessat
	OLD_FILES+=usr/tests/lib/libc/c063/fchmodat
	OLD_FILES+=usr/tests/lib/libc/c063/fchownat
	OLD_FILES+=usr/tests/lib/libc/c063/fexecve
	OLD_FILES+=usr/tests/lib/libc/c063/fstatat
	OLD_FILES+=usr/tests/lib/libc/c063/linkat
	OLD_FILES+=usr/tests/lib/libc/c063/mkdirat
	OLD_FILES+=usr/tests/lib/libc/c063/mkfifoat
	OLD_FILES+=usr/tests/lib/libc/c063/mknodat
	OLD_FILES+=usr/tests/lib/libc/c063/openat
	OLD_FILES+=usr/tests/lib/libc/c063/readlinkat
	OLD_FILES+=usr/tests/lib/libc/c063/renameat
	OLD_FILES+=usr/tests/lib/libc/c063/symlinkat
	OLD_FILES+=usr/tests/lib/libc/c063/unlinkat
	OLD_FILES+=usr/tests/lib/libc/c063/utimensat
	OLD_FILES+=usr/tests/lib/libc/string/memchr
	OLD_FILES+=usr/tests/lib/libc/string/memcpy
	OLD_FILES+=usr/tests/lib/libc/string/memmem
	OLD_FILES+=usr/tests/lib/libc/string/memset
	OLD_FILES+=usr/tests/lib/libc/string/strcat
	OLD_FILES+=usr/tests/lib/libc/string/strchr
	OLD_FILES+=usr/tests/lib/libc/string/strcmp
	OLD_FILES+=usr/tests/lib/libc/string/strcpy
	OLD_FILES+=usr/tests/lib/libc/string/strcspn
	OLD_FILES+=usr/tests/lib/libc/string/strerror
	OLD_FILES+=usr/tests/lib/libc/string/strlen
	OLD_FILES+=usr/tests/lib/libc/string/strpbrk
	OLD_FILES+=usr/tests/lib/libc/string/strrchr
	OLD_FILES+=usr/tests/lib/libc/string/strspn
	OLD_FILES+=usr/tests/lib/libc/string/swab
	# 20151101: 430.status-rwho was renamed to 430.status-uptime
	OLD_FILES+=etc/periodic/daily/430.status-rwho
	# 20151030: OpenSSL 1.0.2d import
	OLD_FILES+=usr/share/openssl/man/man3/CMS_set1_signer_certs.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EVP_PKEY_ctrl.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EVP_PKEY_ctrl_str.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/d2i_509_CRL_fp.3.gz
	OLD_LIBS+=lib/libcrypto.so.7
	OLD_LIBS+=usr/lib/libssl.so.7
	OLD_LIBS+=usr/lib32/libcrypto.so.7
	OLD_LIBS+=usr/lib32/libssl.so.7
	# 20151029: LinuxKPI moved to sys/compat/linuxkpi
	OLD_FILES+=usr/include/dev/usb/usb_compat_linux.h
	# 20151015: test symbols moved to /usr/lib/debug
	OLD_DIRS+=usr/tests/lib/atf/libatf-c++/.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c++/.debug/atf_c++_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c++/.debug/build_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c++/.debug/check_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c++/.debug/config_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c++/.debug/macros_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c++/.debug/tests_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c++/.debug/utils_test.debug
	OLD_DIRS+=usr/tests/lib/atf/libatf-c++/detail/.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c++/detail/.debug/application_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c++/detail/.debug/env_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c++/detail/.debug/exceptions_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c++/detail/.debug/fs_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c++/detail/.debug/process_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c++/detail/.debug/sanity_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c++/detail/.debug/text_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c++/detail/.debug/version_helper.debug
	OLD_DIRS+=usr/tests/lib/atf/libatf-c/.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/.debug/atf_c_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/.debug/build_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/.debug/check_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/.debug/config_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/.debug/error_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/.debug/macros_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/.debug/tc_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/.debug/tp_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/.debug/utils_test.debug
	OLD_DIRS+=usr/tests/lib/atf/libatf-c/detail/.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/detail/.debug/dynstr_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/detail/.debug/env_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/detail/.debug/fs_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/detail/.debug/list_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/detail/.debug/map_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/detail/.debug/process_helpers.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/detail/.debug/process_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/detail/.debug/sanity_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/detail/.debug/text_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/detail/.debug/user_test.debug
	OLD_FILES+=usr/tests/lib/atf/libatf-c/detail/.debug/version_helper.debug
	OLD_DIRS+=usr/tests/lib/atf/test-programs/.debug
	OLD_FILES+=usr/tests/lib/atf/test-programs/.debug/c_helpers.debug
	OLD_FILES+=usr/tests/lib/atf/test-programs/.debug/cpp_helpers.debug
	OLD_DIRS+=usr/tests/lib/libc/c063/.debug
	OLD_FILES+=usr/tests/lib/libc/c063/.debug/faccessat.debug
	OLD_FILES+=usr/tests/lib/libc/c063/.debug/fchmodat.debug
	OLD_FILES+=usr/tests/lib/libc/c063/.debug/fchownat.debug
	OLD_FILES+=usr/tests/lib/libc/c063/.debug/fexecve.debug
	OLD_FILES+=usr/tests/lib/libc/c063/.debug/fstatat.debug
	OLD_FILES+=usr/tests/lib/libc/c063/.debug/linkat.debug
	OLD_FILES+=usr/tests/lib/libc/c063/.debug/mkdirat.debug
	OLD_FILES+=usr/tests/lib/libc/c063/.debug/mkfifoat.debug
	OLD_FILES+=usr/tests/lib/libc/c063/.debug/mknodat.debug
	OLD_FILES+=usr/tests/lib/libc/c063/.debug/openat.debug
	OLD_FILES+=usr/tests/lib/libc/c063/.debug/readlinkat.debug
	OLD_FILES+=usr/tests/lib/libc/c063/.debug/renameat.debug
	OLD_FILES+=usr/tests/lib/libc/c063/.debug/symlinkat.debug
	OLD_FILES+=usr/tests/lib/libc/c063/.debug/unlinkat.debug
	OLD_FILES+=usr/tests/lib/libc/c063/.debug/utimensat.debug
	OLD_DIRS+=usr/tests/lib/libc/db/.debug
	OLD_FILES+=usr/tests/lib/libc/db/.debug/h_db.debug
	OLD_DIRS+=usr/tests/lib/libc/gen/.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/alarm_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/arc4random_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/assert_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/basedirname_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/dir_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/floatunditf_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/fnmatch_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/fpclassify2_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/fpclassify_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/fpsetmask_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/fpsetround_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/ftok_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/getcwd_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/getgrent_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/glob_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/humanize_number_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/isnan_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/nice_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/pause_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/raise_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/realpath_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/setdomainname_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/sethostname_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/sleep_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/syslog_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/time_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/ttyname_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/.debug/vis_test.debug
	OLD_DIRS+=usr/tests/lib/libc/gen/execve/.debug
	OLD_FILES+=usr/tests/lib/libc/gen/execve/.debug/execve_test.debug
	OLD_DIRS+=usr/tests/lib/libc/gen/posix_spawn/.debug
	OLD_FILES+=usr/tests/lib/libc/gen/posix_spawn/.debug/fileactions_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/posix_spawn/.debug/h_fileactions.debug
	OLD_FILES+=usr/tests/lib/libc/gen/posix_spawn/.debug/h_spawn.debug
	OLD_FILES+=usr/tests/lib/libc/gen/posix_spawn/.debug/h_spawnattr.debug
	OLD_FILES+=usr/tests/lib/libc/gen/posix_spawn/.debug/spawn_test.debug
	OLD_FILES+=usr/tests/lib/libc/gen/posix_spawn/.debug/spawnattr_test.debug
	OLD_DIRS+=usr/tests/lib/libc/hash/.debug
	OLD_FILES+=usr/tests/lib/libc/hash/.debug/h_hash.debug
	OLD_FILES+=usr/tests/lib/libc/hash/.debug/sha2_test.debug
	OLD_DIRS+=usr/tests/lib/libc/inet/.debug
	OLD_FILES+=usr/tests/lib/libc/inet/.debug/inet_network_test.debug
	OLD_DIRS+=usr/tests/lib/libc/locale/.debug
	OLD_FILES+=usr/tests/lib/libc/locale/.debug/io_test.debug
	OLD_FILES+=usr/tests/lib/libc/locale/.debug/mbrtowc_test.debug
	OLD_FILES+=usr/tests/lib/libc/locale/.debug/mbsnrtowcs_test.debug
	OLD_FILES+=usr/tests/lib/libc/locale/.debug/mbstowcs_test.debug
	OLD_FILES+=usr/tests/lib/libc/locale/.debug/mbtowc_test.debug
	OLD_FILES+=usr/tests/lib/libc/locale/.debug/wcscspn_test.debug
	OLD_FILES+=usr/tests/lib/libc/locale/.debug/wcspbrk_test.debug
	OLD_FILES+=usr/tests/lib/libc/locale/.debug/wcsspn_test.debug
	OLD_FILES+=usr/tests/lib/libc/locale/.debug/wcstod_test.debug
	OLD_FILES+=usr/tests/lib/libc/locale/.debug/wctomb_test.debug
	OLD_DIRS+=usr/tests/lib/libc/net/.debug
	OLD_FILES+=usr/tests/lib/libc/net/.debug/ether_aton_test.debug
	OLD_FILES+=usr/tests/lib/libc/net/.debug/getprotoent_test.debug
	OLD_FILES+=usr/tests/lib/libc/net/.debug/h_dns_server.debug
	OLD_FILES+=usr/tests/lib/libc/net/.debug/h_nsd_recurse.debug
	OLD_FILES+=usr/tests/lib/libc/net/.debug/h_protoent.debug
	OLD_FILES+=usr/tests/lib/libc/net/.debug/h_servent.debug
	OLD_DIRS+=usr/tests/lib/libc/regex/.debug
	OLD_FILES+=usr/tests/lib/libc/regex/.debug/exhaust_test.debug
	OLD_FILES+=usr/tests/lib/libc/regex/.debug/h_regex.debug
	OLD_FILES+=usr/tests/lib/libc/regex/.debug/regex_att_test.debug
	OLD_DIRS+=usr/tests/lib/libc/ssp/.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_fgets.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_getcwd.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_gets.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_memcpy.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_memmove.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_memset.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_raw.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_read.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_readlink.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_snprintf.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_sprintf.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_stpcpy.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_stpncpy.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_strcat.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_strcpy.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_strncat.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_strncpy.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_vsnprintf.debug
	OLD_FILES+=usr/tests/lib/libc/ssp/.debug/h_vsprintf.debug
	OLD_DIRS+=usr/tests/lib/libc/stdio/.debug
	OLD_FILES+=usr/tests/lib/libc/stdio/.debug/clearerr_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdio/.debug/fflush_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdio/.debug/fmemopen2_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdio/.debug/fmemopen_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdio/.debug/fopen_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdio/.debug/fputc_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdio/.debug/mktemp_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdio/.debug/popen_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdio/.debug/printf_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdio/.debug/scanf_test.debug
	OLD_DIRS+=usr/tests/lib/libc/stdlib/.debug
	OLD_FILES+=usr/tests/lib/libc/stdlib/.debug/abs_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdlib/.debug/atoi_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdlib/.debug/div_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdlib/.debug/exit_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdlib/.debug/getenv_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdlib/.debug/h_getopt.debug
	OLD_FILES+=usr/tests/lib/libc/stdlib/.debug/h_getopt_long.debug
	OLD_FILES+=usr/tests/lib/libc/stdlib/.debug/hsearch_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdlib/.debug/posix_memalign_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdlib/.debug/random_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdlib/.debug/strtod_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdlib/.debug/strtol_test.debug
	OLD_FILES+=usr/tests/lib/libc/stdlib/.debug/system_test.debug
	OLD_DIRS+=usr/tests/lib/libc/string/.debug
	OLD_FILES+=usr/tests/lib/libc/string/.debug/memchr.debug
	OLD_FILES+=usr/tests/lib/libc/string/.debug/memcpy.debug
	OLD_FILES+=usr/tests/lib/libc/string/.debug/memmem.debug
	OLD_FILES+=usr/tests/lib/libc/string/.debug/memset.debug
	OLD_FILES+=usr/tests/lib/libc/string/.debug/strcat.debug
	OLD_FILES+=usr/tests/lib/libc/string/.debug/strchr.debug
	OLD_FILES+=usr/tests/lib/libc/string/.debug/strcmp.debug
	OLD_FILES+=usr/tests/lib/libc/string/.debug/strcpy.debug
	OLD_FILES+=usr/tests/lib/libc/string/.debug/strcspn.debug
	OLD_FILES+=usr/tests/lib/libc/string/.debug/strerror.debug
	OLD_FILES+=usr/tests/lib/libc/string/.debug/strlen.debug
	OLD_FILES+=usr/tests/lib/libc/string/.debug/strpbrk.debug
	OLD_FILES+=usr/tests/lib/libc/string/.debug/strrchr.debug
	OLD_FILES+=usr/tests/lib/libc/string/.debug/strspn.debug
	OLD_FILES+=usr/tests/lib/libc/string/.debug/swab.debug
	OLD_DIRS+=usr/tests/lib/libc/sys/.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/access_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/chroot_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/clock_gettime_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/connect_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/dup_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/fsync_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/getcontext_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/getgroups_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/getitimer_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/getlogin_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/getpid_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/getrusage_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/getsid_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/gettimeofday_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/issetugid_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/kevent_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/kill_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/link_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/listen_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/mincore_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/mkdir_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/mkfifo_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/mknod_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/mlock_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/mmap_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/mprotect_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/msgctl_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/msgget_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/msgrcv_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/msgsnd_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/msync_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/nanosleep_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/pipe2_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/pipe_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/poll_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/revoke_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/select_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/setrlimit_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/setuid_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/sigaction_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/sigqueue_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/sigtimedwait_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/socketpair_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/stat_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/timer_create_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/truncate_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/ucontext_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/umask_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/unlink_test.debug
	OLD_FILES+=usr/tests/lib/libc/sys/.debug/write_test.debug
	OLD_DIRS+=usr/tests/lib/libc/termios/.debug
	OLD_FILES+=usr/tests/lib/libc/termios/.debug/tcsetpgrp_test.debug
	OLD_DIRS+=usr/tests/lib/libc/tls/.debug
	OLD_FILES+=usr/tests/lib/libc/tls/.debug/h_tls_dlopen.so.debug
	OLD_FILES+=usr/tests/lib/libc/tls/.debug/libh_tls_dynamic.so.1.debug
	OLD_FILES+=usr/tests/lib/libc/tls/.debug/tls_dlopen_test.debug
	OLD_FILES+=usr/tests/lib/libc/tls/.debug/tls_dynamic_test.debug
	OLD_DIRS+=usr/tests/lib/libc/ttyio/.debug
	OLD_FILES+=usr/tests/lib/libc/ttyio/.debug/ttyio_test.debug
	OLD_DIRS+=usr/tests/lib/libcrypt/.debug
	OLD_FILES+=usr/tests/lib/libcrypt/.debug/crypt_tests.debug
	OLD_DIRS+=usr/tests/lib/libmp/.debug
	OLD_FILES+=usr/tests/lib/libmp/.debug/legacy_test.debug
	OLD_DIRS+=usr/tests/lib/libnv/.debug
	OLD_FILES+=usr/tests/lib/libnv/.debug/dnv_tests.debug
	OLD_FILES+=usr/tests/lib/libnv/.debug/nv_array_tests.debug
	OLD_FILES+=usr/tests/lib/libnv/.debug/nv_tests.debug
	OLD_FILES+=usr/tests/lib/libnv/.debug/nvlist_add_test.debug
	OLD_FILES+=usr/tests/lib/libnv/.debug/nvlist_exists_test.debug
	OLD_FILES+=usr/tests/lib/libnv/.debug/nvlist_free_test.debug
	OLD_FILES+=usr/tests/lib/libnv/.debug/nvlist_get_test.debug
	OLD_FILES+=usr/tests/lib/libnv/.debug/nvlist_move_test.debug
	OLD_FILES+=usr/tests/lib/libnv/.debug/nvlist_send_recv_test.debug
	OLD_DIRS+=usr/tests/lib/libpam/.debug
	OLD_FILES+=usr/tests/lib/libpam/.debug/t_openpam_ctype.debug
	OLD_FILES+=usr/tests/lib/libpam/.debug/t_openpam_readlinev.debug
	OLD_FILES+=usr/tests/lib/libpam/.debug/t_openpam_readword.debug
	OLD_DIRS+=usr/tests/lib/libproc/.debug
	OLD_FILES+=usr/tests/lib/libproc/.debug/proc_test.debug
	OLD_FILES+=usr/tests/lib/libproc/.debug/target_prog.debug
	OLD_DIRS+=usr/tests/lib/librt/.debug
	OLD_FILES+=usr/tests/lib/librt/.debug/sched_test.debug
	OLD_FILES+=usr/tests/lib/librt/.debug/sem_test.debug
	OLD_DIRS+=usr/tests/lib/libthr/.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/barrier_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/cond_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/condwait_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/detach_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/equal_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/fork_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/fpu_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/h_atexit.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/h_cancel.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/h_exit.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/h_resolv.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/join_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/kill_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/mutex_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/once_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/preempt_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/rwlock_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/sem_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/siglongjmp_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/sigmask_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/sigsuspend_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/sleep_test.debug
	OLD_FILES+=usr/tests/lib/libthr/.debug/swapcontext_test.debug
	OLD_DIRS+=usr/tests/lib/libthr/dlopen/.debug
	OLD_FILES+=usr/tests/lib/libthr/dlopen/.debug/dlopen_test.debug
	OLD_FILES+=usr/tests/lib/libthr/dlopen/.debug/h_pthread_dlopen.so.1.debug
	OLD_FILES+=usr/tests/lib/libthr/dlopen/.debug/main_pthread_create_test.debug
	OLD_DIRS+=usr/tests/lib/libutil/.debug
	OLD_FILES+=usr/tests/lib/libutil/.debug/flopen_test.debug
	OLD_FILES+=usr/tests/lib/libutil/.debug/grp_test.debug
	OLD_FILES+=usr/tests/lib/libutil/.debug/humanize_number_test.debug
	OLD_FILES+=usr/tests/lib/libutil/.debug/pidfile_test.debug
	OLD_FILES+=usr/tests/lib/libutil/.debug/trimdomain-nodomain_test.debug
	OLD_FILES+=usr/tests/lib/libutil/.debug/trimdomain_test.debug
	OLD_DIRS+=usr/tests/lib/libxo/.debug
	OLD_FILES+=usr/tests/lib/libxo/.debug/libenc_test.so.debug
	OLD_FILES+=usr/tests/lib/libxo/.debug/test_01.debug
	OLD_FILES+=usr/tests/lib/libxo/.debug/test_02.debug
	OLD_FILES+=usr/tests/lib/libxo/.debug/test_03.debug
	OLD_FILES+=usr/tests/lib/libxo/.debug/test_04.debug
	OLD_FILES+=usr/tests/lib/libxo/.debug/test_05.debug
	OLD_FILES+=usr/tests/lib/libxo/.debug/test_06.debug
	OLD_FILES+=usr/tests/lib/libxo/.debug/test_07.debug
	OLD_FILES+=usr/tests/lib/libxo/.debug/test_08.debug
	OLD_FILES+=usr/tests/lib/libxo/.debug/test_09.debug
	OLD_FILES+=usr/tests/lib/libxo/.debug/test_10.debug
	OLD_FILES+=usr/tests/lib/libxo/.debug/test_11.debug
	OLD_DIRS+=usr/tests/lib/msun/.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/acos_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/asin_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/atan_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/cbrt_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/ceil_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/cos_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/cosh_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/erf_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/exp_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/fmod_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/infinity_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/ldexp_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/log_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/pow_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/precision_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/round_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/scalbn_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/sin_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/sinh_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/sqrt_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/tan_test.debug
	OLD_FILES+=usr/tests/lib/msun/.debug/tanh_test.debug
	OLD_DIRS+=usr/tests/libexec/rtld-elf/.debug
	OLD_FILES+=usr/tests/libexec/rtld-elf/.debug/ld_library_pathfds.debug
	OLD_FILES+=usr/tests/libexec/rtld-elf/.debug/libpythagoras.so.0.debug
	OLD_FILES+=usr/tests/libexec/rtld-elf/.debug/target.debug
	OLD_DIRS+=usr/tests/sbin/devd/.debug
	OLD_FILES+=usr/tests/sbin/devd/.debug/client_test.debug
	OLD_DIRS+=usr/tests/sbin/dhclient/.debug
	OLD_FILES+=usr/tests/sbin/dhclient/.debug/option-domain-search_test.debug
	OLD_DIRS+=usr/tests/share/examples/tests/atf/.debug
	OLD_FILES+=usr/tests/share/examples/tests/atf/.debug/printf_test.debug
	OLD_DIRS+=usr/tests/share/examples/tests/plain/.debug
	OLD_FILES+=usr/tests/share/examples/tests/plain/.debug/printf_test.debug
	OLD_DIRS+=usr/tests/sys/aio/.debug
	OLD_FILES+=usr/tests/sys/aio/.debug/aio_kqueue_test.debug
	OLD_FILES+=usr/tests/sys/aio/.debug/aio_test.debug
	OLD_FILES+=usr/tests/sys/aio/.debug/lio_kqueue_test.debug
	OLD_DIRS+=usr/tests/sys/fifo/.debug
	OLD_FILES+=usr/tests/sys/fifo/.debug/fifo_create.debug
	OLD_FILES+=usr/tests/sys/fifo/.debug/fifo_io.debug
	OLD_FILES+=usr/tests/sys/fifo/.debug/fifo_misc.debug
	OLD_FILES+=usr/tests/sys/fifo/.debug/fifo_open.debug
	OLD_DIRS+=usr/tests/sys/file/.debug
	OLD_FILES+=usr/tests/sys/file/.debug/closefrom_test.debug
	OLD_FILES+=usr/tests/sys/file/.debug/dup_test.debug
	OLD_FILES+=usr/tests/sys/file/.debug/fcntlflags_test.debug
	OLD_FILES+=usr/tests/sys/file/.debug/flock_helper.debug
	OLD_FILES+=usr/tests/sys/file/.debug/ftruncate_test.debug
	OLD_FILES+=usr/tests/sys/file/.debug/newfileops_on_fork_test.debug
	OLD_DIRS+=usr/tests/sys/kern/.debug
	OLD_FILES+=usr/tests/sys/kern/.debug/kern_descrip_test.debug
	OLD_FILES+=usr/tests/sys/kern/.debug/ptrace_test.debug
	OLD_FILES+=usr/tests/sys/kern/.debug/unix_seqpacket_test.debug
	OLD_DIRS+=usr/tests/sys/kern/execve/.debug
	OLD_FILES+=usr/tests/sys/kern/execve/.debug/execve_helper.debug
	OLD_FILES+=usr/tests/sys/kern/execve/.debug/good_aout.debug
	OLD_DIRS+=usr/tests/sys/kqueue/.debug
	OLD_FILES+=usr/tests/sys/kqueue/.debug/kqtest.debug
	OLD_DIRS+=usr/tests/sys/mqueue/.debug
	OLD_FILES+=usr/tests/sys/mqueue/.debug/mqtest1.debug
	OLD_FILES+=usr/tests/sys/mqueue/.debug/mqtest2.debug
	OLD_FILES+=usr/tests/sys/mqueue/.debug/mqtest3.debug
	OLD_FILES+=usr/tests/sys/mqueue/.debug/mqtest4.debug
	OLD_FILES+=usr/tests/sys/mqueue/.debug/mqtest5.debug
	OLD_DIRS+=usr/tests/sys/netinet/.debug
	OLD_FILES+=usr/tests/sys/netinet/.debug/udp_dontroute.debug
	OLD_DIRS+=usr/tests/sys/pjdfstest/.debug
	OLD_FILES+=usr/tests/sys/pjdfstest/.debug/pjdfstest.debug
	OLD_DIRS+=usr/tests/sys/vm/.debug
	OLD_FILES+=usr/tests/sys/vm/.debug/mmap_test.debug
	# 20151015: Rename files due to file-installed-as-dir bug
	OLD_FILES+=usr/share/doc/legal/realtek
	OLD_FILES+=usr/share/doc/legal/realtek/LICENSE
	OLD_DIRS+=usr/share/doc/legal/realtek
	OLD_DIRS+=usr/share/doc/legal/intel_ipw
	OLD_FILES+=usr/share/doc/legal/intel_ipw/LICENSE
	OLD_FILES+=usr/share/doc/legal/intel_iwn
	OLD_FILES+=usr/share/doc/legal/intel_iwn/LICENSE
	OLD_DIRS+=usr/share/doc/legal/intel_iwn
	OLD_DIRS+=usr/share/doc/legal/intel_iwi
	OLD_FILES+=usr/share/doc/legal/intel_iwi/LICENSE
	OLD_DIRS+=usr/share/doc/legal/intel_wpi
	OLD_FILES+=usr/share/doc/legal/intel_wpi/LICENSE
	# 20151006: new libc++ import
	OLD_FILES+=usr/include/c++/__tuple_03
	OLD_FILES+=usr/include/c++/v1/__tuple_03
	OLD_FILES+=usr/include/c++/v1/tr1/__tuple_03
	# 20151006: new clang import which bumps version from 3.6.1 to 3.7.0.
	OLD_FILES+=usr/lib/clang/3.6.1/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/altivec.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/cpuid.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/immintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/module.modulemap
	OLD_FILES+=usr/lib/clang/3.6.1/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.1/include/xopintrin.h
	OLD_DIRS+=usr/lib/clang/3.6.1/include
	OLD_FILES+=usr/lib/clang/3.6.1/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/3.6.1/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/3.6.1/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.6.1/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/3.6.1/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/3.6.1/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/3.6.1/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/3.6.1/lib/freebsd/libclang_rt.san-i386.a
	OLD_FILES+=usr/lib/clang/3.6.1/lib/freebsd/libclang_rt.san-x86_64.a
	OLD_FILES+=usr/lib/clang/3.6.1/lib/freebsd/libclang_rt.ubsan-i386.a
	OLD_FILES+=usr/lib/clang/3.6.1/lib/freebsd/libclang_rt.ubsan-x86_64.a
	OLD_FILES+=usr/lib/clang/3.6.1/lib/freebsd/libclang_rt.ubsan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.6.1/lib/freebsd/libclang_rt.ubsan_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/3.6.1/lib/freebsd
	OLD_DIRS+=usr/lib/clang/3.6.1/lib
	OLD_DIRS+=usr/lib/clang/3.6.1
	# 20150928: unused sgsmsg utility is removed
	OLD_FILES+=usr/bin/sgsmsg
	# 20150926: remove links to removed/unimplemented mbuf(9) macros
	OLD_FILES+=usr/share/man/man9/MEXT_ADD_REF.9.gz
	OLD_FILES+=usr/share/man/man9/MEXTFREE.9.gz
	OLD_FILES+=usr/share/man/man9/MEXT_IS_REF.9.gz
	OLD_FILES+=usr/share/man/man9/MEXT_REM_REF.9.gz
	OLD_FILES+=usr/share/man/man9/MFREE.9.gz
	# 20150818: *allocm() are gone in jemalloc 4.0.0
	OLD_FILES+=usr/share/man/man3/allocm.3.gz
	OLD_FILES+=usr/share/man/man3/dallocm.3.gz
	OLD_FILES+=usr/share/man/man3/nallocm.3.gz
	OLD_FILES+=usr/share/man/man3/rallocm.3.gz
	OLD_FILES+=usr/share/man/man3/sallocm.3.gz
	# 20150802: Remove netbsd's test on pw(8)
	OLD_FILES+=usr/tests/usr.sbin/pw/pw_test
	# 20150719: Remove libarchive.pc
	OLD_FILES+=usr/libdata/pkgconfig/libarchive.pc
	# 20150705: Rename DTrace provider man pages.
	OLD_FILES+=usr/share/man/man4/dtrace-io.4.gz
	OLD_FILES+=usr/share/man/man4/dtrace-ip.4.gz
	OLD_FILES+=usr/share/man/man4/dtrace-proc.4.gz
	OLD_FILES+=usr/share/man/man4/dtrace-sched.4.gz
	OLD_FILES+=usr/share/man/man4/dtrace-tcp.4.gz
	OLD_FILES+=usr/share/man/man4/dtrace-udp.4.gz
	# 20150704: nvlist private headers no longer installed
	OLD_FILES+=usr/include/sys/nv_impl.h
	OLD_FILES+=usr/include/sys/nvlist_impl.h
	OLD_FILES+=usr/include/sys/nvpair_impl.h
	# 20150624
	OLD_LIBS+=usr/lib/libugidfw.so.4
	OLD_LIBS+=usr/lib32/libugidfw.so.4
	# 20150604: Move nvlist man pages to section 9.
	OLD_FILES+=usr/share/man/man3/libnv.3.gz
	OLD_FILES+=usr/share/man/man3/nv.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_add_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_add_bool.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_add_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_add_null.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_add_number.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_add_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_add_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_add_stringf.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_add_stringv.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_clone.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_create.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_destroy.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_dump.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_empty.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_error.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_exists.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_exists_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_exists_bool.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_exists_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_exists_null.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_exists_number.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_exists_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_exists_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_exists_type.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_fdump.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_flags.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_free.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_free_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_free_bool.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_free_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_free_null.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_free_number.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_free_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_free_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_free_type.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_get_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_get_bool.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_get_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_get_number.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_get_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_get_parent.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_get_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_move_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_move_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_move_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_move_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_next.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_pack.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_recv.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_send.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_set_error.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_size.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_take_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_take_bool.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_take_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_take_number.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_take_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_take_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_unpack.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_xfer.3.gz
	# 20150702: Remove duplicated nvlist includes.
	OLD_FILES+=usr/include/dnv.h
	OLD_FILES+=usr/include/nv.h
	# 20150528: PCI IOV device driver methods moved to a separate kobj interface.
	OLD_FILES+=usr/share/man/man9/PCI_ADD_VF.9.gz
	OLD_FILES+=usr/share/man/man9/PCI_INIT_IOV.9.gz
	OLD_FILES+=usr/share/man/man9/PCI_UNINIT_IOV.9.gz
	# 20150525: new clang import which bumps version from 3.6.0 to 3.6.1.
	OLD_FILES+=usr/lib/clang/3.6.0/include/__stddef_max_align_t.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/__wmmintrin_aes.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/__wmmintrin_pclmul.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/adxintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/altivec.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/ammintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/arm_acle.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/arm_neon.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/avx2intrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/avx512bwintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/avx512erintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/avx512fintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/avx512vlbwintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/avx512vlintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/avxintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/bmi2intrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/bmiintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/cpuid.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/emmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/f16cintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/fma4intrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/fmaintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/ia32intrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/immintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/lzcntintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/mm3dnow.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/mm_malloc.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/mmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/module.modulemap
	OLD_FILES+=usr/lib/clang/3.6.0/include/nmmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/pmmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/popcntintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/prfchwintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/rdseedintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/rtmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/shaintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/smmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/tbmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/tmmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/wmmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/x86intrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/xmmintrin.h
	OLD_FILES+=usr/lib/clang/3.6.0/include/xopintrin.h
	OLD_DIRS+=usr/lib/clang/3.6.0/include
	OLD_FILES+=usr/lib/clang/3.6.0/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/3.6.0/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/3.6.0/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.6.0/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/3.6.0/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/3.6.0/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/3.6.0/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/3.6.0/lib/freebsd/libclang_rt.san-i386.a
	OLD_FILES+=usr/lib/clang/3.6.0/lib/freebsd/libclang_rt.san-x86_64.a
	OLD_FILES+=usr/lib/clang/3.6.0/lib/freebsd/libclang_rt.ubsan-i386.a
	OLD_FILES+=usr/lib/clang/3.6.0/lib/freebsd/libclang_rt.ubsan-x86_64.a
	OLD_FILES+=usr/lib/clang/3.6.0/lib/freebsd/libclang_rt.ubsan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.6.0/lib/freebsd/libclang_rt.ubsan_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/3.6.0/lib/freebsd
	OLD_DIRS+=usr/lib/clang/3.6.0/lib
	OLD_DIRS+=usr/lib/clang/3.6.0
	# 20150521
	OLD_FILES+=usr/bin/demandoc
	OLD_FILES+=usr/share/man/man1/demandoc.1.gz
	OLD_FILES+=usr/share/man/man3/mandoc.3.gz
	OLD_FILES+=usr/share/man/man3/mandoc_headers.3.gz
	# 20150520
	OLD_FILES+=usr/lib/libheimsqlite.a
	OLD_FILES+=usr/lib/libheimsqlite.so
	OLD_LIBS+=usr/lib/libheimsqlite.so.11
	OLD_FILES+=usr/lib/libheimsqlite_p.a
	OLD_FILES+=usr/lib32/libheimsqlite.a
	OLD_FILES+=usr/lib32/libheimsqlite.so
	OLD_LIBS+=usr/lib32/libheimsqlite.so.11
	OLD_FILES+=usr/lib32/libheimsqlite_p.a
	# 20150506
	OLD_FILES+=usr/share/man/man9/NDHASGIANT.9.gz
	# 20150504
	OLD_FILES+=usr/share/examples/etc/libmap32.conf
	OLD_FILES+=usr/include/bsdstat.h
	OLD_LIBS+=usr/lib32/private/libatf-c++.so.2
	OLD_LIBS+=usr/lib32/private/libbsdstat.so.1
	OLD_LIBS+=usr/lib32/private/libheimipcs.so.11
	OLD_LIBS+=usr/lib32/private/libsqlite3.so.0
	OLD_LIBS+=usr/lib32/private/libunbound.so.5
	OLD_LIBS+=usr/lib32/private/libatf-c.so.1
	OLD_LIBS+=usr/lib32/private/libheimipcc.so.11
	OLD_LIBS+=usr/lib32/private/libldns.so.5
	OLD_LIBS+=usr/lib32/private/libssh.so.5
	OLD_LIBS+=usr/lib32/private/libucl.so.1
	OLD_DIRS+=usr/lib32/private
	OLD_LIBS+=usr/lib/private/libatf-c++.so.2
	OLD_LIBS+=usr/lib/private/libbsdstat.so.1
	OLD_LIBS+=usr/lib/private/libheimipcs.so.11
	OLD_LIBS+=usr/lib/private/libsqlite3.so.0
	OLD_LIBS+=usr/lib/private/libunbound.so.5
	OLD_LIBS+=usr/lib/private/libatf-c.so.1
	OLD_LIBS+=usr/lib/private/libheimipcc.so.11
	OLD_LIBS+=usr/lib/private/libldns.so.5
	OLD_LIBS+=usr/lib/private/libssh.so.5
	OLD_LIBS+=usr/lib/private/libucl.so.1
	OLD_DIRS+=usr/lib/private
	# 20150501
	OLD_FILES+=usr/bin/soeliminate
	OLD_FILES+=usr/share/man/man1/soeliminate.1.gz
	# 20150501: Remove the nvlist_.*[vf] functions manpages.
	OLD_FILES+=usr/share/man/man3/nvlist_addf_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_addf_bool.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_addf_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_addf_null.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_addf_number.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_addf_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_addf_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_addv_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_addv_bool.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_addv_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_addv_null.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_addv_number.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_addv_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_addv_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsf.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsf_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsf_bool.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsf_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsf_null.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsf_number.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsf_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsf_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsf_type.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsv.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsv_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsv_bool.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsv_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsv_null.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsv_number.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsv_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsv_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_existsv_type.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freef.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freef_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freef_bool.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freef_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freef_null.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freef_number.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freef_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freef_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freef_type.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freev.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freev_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freev_bool.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freev_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freev_null.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freev_number.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freev_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freev_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_freev_type.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_getf_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_getf_bool.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_getf_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_getf_number.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_getf_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_getf_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_getv_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_getv_bool.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_getv_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_getv_number.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_getv_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_getv_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_movef_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_movef_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_movef_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_movef_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_movev_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_movev_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_movev_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_movev_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_takef_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_takef_bool.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_takef_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_takef_number.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_takef_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_takef_string.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_takev_binary.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_takev_bool.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_takev_descriptor.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_takev_number.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_takev_nvlist.3.gz
	OLD_FILES+=usr/share/man/man3/nvlist_takev_string.3.gz
	# 20150429: remove never written documentation
	OLD_FILES+=usr/share/doc/papers/hwpmc.ascii.gz
	# 20150427: test/sys/kern/mmap_test moved to test/sys/vm/mmap_test
	OLD_FILES+=usr/tests/sys/kern/mmap_test
	# 20150422: zlib.c moved from net to libkern
	OLD_FILES+=usr/include/net/zlib.h
	OLD_FILES+=usr/include/net/zutil.h
	# 20150418
	OLD_FILES+=sbin/mount_oldnfs
	OLD_FILES+=usr/share/man/man8/mount_oldnfs.8.gz
	# 20150416: ALTQ moved to net/altq
	OLD_FILES+=usr/include/altq/altq_rmclass_debug.h
	OLD_FILES+=usr/include/altq/altq.h
	OLD_FILES+=usr/include/altq/altq_cdnr.h
	OLD_FILES+=usr/include/altq/altq_hfsc.h
	OLD_FILES+=usr/include/altq/altq_priq.h
	OLD_FILES+=usr/include/altq/altqconf.h
	OLD_FILES+=usr/include/altq/altq_classq.h
	OLD_FILES+=usr/include/altq/altq_red.h
	OLD_FILES+=usr/include/altq/if_altq.h
	OLD_FILES+=usr/include/altq/altq_var.h
	OLD_FILES+=usr/include/altq/altq_rmclass.h
	OLD_FILES+=usr/include/altq/altq_cbq.h
	OLD_FILES+=usr/include/altq/altq_rio.h
	OLD_DIRS+=usr/include/altq
	# 20150330: ntp 4.2.8p1
	OLD_FILES+=usr/share/doc/ntp/driver1.html
	OLD_FILES+=usr/share/doc/ntp/driver10.html
	OLD_FILES+=usr/share/doc/ntp/driver11.html
	OLD_FILES+=usr/share/doc/ntp/driver12.html
	OLD_FILES+=usr/share/doc/ntp/driver16.html
	OLD_FILES+=usr/share/doc/ntp/driver18.html
	OLD_FILES+=usr/share/doc/ntp/driver19.html
	OLD_FILES+=usr/share/doc/ntp/driver2.html
	OLD_FILES+=usr/share/doc/ntp/driver20.html
	OLD_FILES+=usr/share/doc/ntp/driver22.html
	OLD_FILES+=usr/share/doc/ntp/driver26.html
	OLD_FILES+=usr/share/doc/ntp/driver27.html
	OLD_FILES+=usr/share/doc/ntp/driver28.html
	OLD_FILES+=usr/share/doc/ntp/driver29.html
	OLD_FILES+=usr/share/doc/ntp/driver3.html
	OLD_FILES+=usr/share/doc/ntp/driver30.html
	OLD_FILES+=usr/share/doc/ntp/driver32.html
	OLD_FILES+=usr/share/doc/ntp/driver33.html
	OLD_FILES+=usr/share/doc/ntp/driver34.html
	OLD_FILES+=usr/share/doc/ntp/driver35.html
	OLD_FILES+=usr/share/doc/ntp/driver36.html
	OLD_FILES+=usr/share/doc/ntp/driver37.html
	OLD_FILES+=usr/share/doc/ntp/driver4.html
	OLD_FILES+=usr/share/doc/ntp/driver5.html
	OLD_FILES+=usr/share/doc/ntp/driver6.html
	OLD_FILES+=usr/share/doc/ntp/driver7.html
	OLD_FILES+=usr/share/doc/ntp/driver8.html
	OLD_FILES+=usr/share/doc/ntp/driver9.html
	OLD_FILES+=usr/share/doc/ntp/ldisc.html
	OLD_FILES+=usr/share/doc/ntp/measure.html
	OLD_FILES+=usr/share/doc/ntp/mx4200data.html
	OLD_FILES+=usr/share/doc/ntp/notes.html
	OLD_FILES+=usr/share/doc/ntp/patches.html
	OLD_FILES+=usr/share/doc/ntp/porting.html
	OLD_FILES+=usr/share/man/man1/sntp.1.gz
	# 20150329
	.if ${TARGET_ARCH} == "arm"
	OLD_FILES+=usr/include/bootconfig.h
	.endif
	# 20150326
	OLD_FILES+=usr/share/man/man1/pmcstudy.1.gz
	# 20150315: new clang import which bumps version from 3.5.1 to 3.6.0.
	OLD_FILES+=usr/include/clang/3.5.1/__wmmintrin_aes.h
	OLD_FILES+=usr/include/clang/3.5.1/__wmmintrin_pclmul.h
	OLD_FILES+=usr/include/clang/3.5.1/altivec.h
	OLD_FILES+=usr/include/clang/3.5.1/ammintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/arm_acle.h
	OLD_FILES+=usr/include/clang/3.5.1/arm_neon.h
	OLD_FILES+=usr/include/clang/3.5.1/avx2intrin.h
	OLD_FILES+=usr/include/clang/3.5.1/avxintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/bmi2intrin.h
	OLD_FILES+=usr/include/clang/3.5.1/bmiintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/cpuid.h
	OLD_FILES+=usr/include/clang/3.5.1/emmintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/f16cintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/fma4intrin.h
	OLD_FILES+=usr/include/clang/3.5.1/fmaintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/ia32intrin.h
	OLD_FILES+=usr/include/clang/3.5.1/immintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/lzcntintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/mm3dnow.h
	OLD_FILES+=usr/include/clang/3.5.1/mm_malloc.h
	OLD_FILES+=usr/include/clang/3.5.1/mmintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/module.modulemap
	OLD_FILES+=usr/include/clang/3.5.1/nmmintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/pmmintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/popcntintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/prfchwintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/rdseedintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/rtmintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/shaintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/smmintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/tbmintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/tmmintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/wmmintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/x86intrin.h
	OLD_FILES+=usr/include/clang/3.5.1/xmmintrin.h
	OLD_FILES+=usr/include/clang/3.5.1/xopintrin.h
	OLD_DIRS+=usr/include/clang/3.5.1
	OLD_DIRS+=usr/include/clang
	OLD_FILES+=usr/lib/clang/3.5.1/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/3.5.1/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/3.5.1/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.5.1/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/3.5.1/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/3.5.1/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/3.5.1/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/3.5.1/lib/freebsd/libclang_rt.san-i386.a
	OLD_FILES+=usr/lib/clang/3.5.1/lib/freebsd/libclang_rt.san-x86_64.a
	OLD_FILES+=usr/lib/clang/3.5.1/lib/freebsd/libclang_rt.ubsan-i386.a
	OLD_FILES+=usr/lib/clang/3.5.1/lib/freebsd/libclang_rt.ubsan-x86_64.a
	OLD_FILES+=usr/lib/clang/3.5.1/lib/freebsd/libclang_rt.ubsan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.5.1/lib/freebsd/libclang_rt.ubsan_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/3.5.1/lib/freebsd
	OLD_DIRS+=usr/lib/clang/3.5.1/lib
	OLD_DIRS+=usr/lib/clang/3.5.1
	# 20150302: binutils documentation distributed as a manpage
	OLD_FILES+=usr/share/doc/binutils/as.txt
	OLD_FILES+=usr/share/doc/binutils/ld.txt
	OLD_DIRS+=usr/share/doc/binutils
	# 20150222: Removed bcd(6) and ppt(6)
	OLD_FILES+=usr/bin/bcd
	OLD_FILES+=usr/bin/ppt
	OLD_FILES+=usr/share/man/man6/bcd.6.gz
	OLD_FILES+=usr/share/man/man6/ppt.6.gz
	# 20150217: Removed remnants of ar(4) driver
	OLD_FILES+=usr/include/dev/ic/hd64570.h
	# 20150212: /usr/games moving into /usr/bin
	OLD_FILES+=usr/games/bcd
	OLD_FILES+=usr/games/caesar
	OLD_FILES+=usr/games/factor
	OLD_FILES+=usr/games/fortune
	OLD_FILES+=usr/games/grdc
	OLD_FILES+=usr/games/morse
	OLD_FILES+=usr/games/number
	OLD_FILES+=usr/games/pom
	OLD_FILES+=usr/games/ppt
	OLD_FILES+=usr/games/primes
	OLD_FILES+=usr/games/random
	OLD_FILES+=usr/games/rot13
	OLD_FILES+=usr/games/strfile
	OLD_FILES+=usr/games/unstr
	OLD_DIRS+=usr/games
	# 20150209: liblzma header
	OLD_FILES+=usr/include/lzma/lzma.h
	# 20150124: spl.9 and friends
	OLD_FILES+=usr/share/man/man9/spl.9.gz
	OLD_FILES+=usr/share/man/man9/spl0.9.gz
	OLD_FILES+=usr/share/man/man9/splbio.9.gz
	OLD_FILES+=usr/share/man/man9/splclock.9.gz
	OLD_FILES+=usr/share/man/man9/splhigh.9.gz
	OLD_FILES+=usr/share/man/man9/splimp.9.gz
	OLD_FILES+=usr/share/man/man9/splnet.9.gz
	OLD_FILES+=usr/share/man/man9/splsoftclock.9.gz
	OLD_FILES+=usr/share/man/man9/splsofttty.9.gz
	OLD_FILES+=usr/share/man/man9/splstatclock.9.gz
	OLD_FILES+=usr/share/man/man9/spltty.9.gz
	OLD_FILES+=usr/share/man/man9/splvm.9.gz
	OLD_FILES+=usr/share/man/man9/splx.9.gz
	# 20150118: toeplitz.c moved from netinet to net
	OLD_FILES+=usr/include/netinet/toeplitz.h
	# 20150118: new clang import which bumps version from 3.5.0 to 3.5.1.
	OLD_FILES+=usr/include/clang/3.5.0/__wmmintrin_aes.h
	OLD_FILES+=usr/include/clang/3.5.0/__wmmintrin_pclmul.h
	OLD_FILES+=usr/include/clang/3.5.0/altivec.h
	OLD_FILES+=usr/include/clang/3.5.0/ammintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/arm_acle.h
	OLD_FILES+=usr/include/clang/3.5.0/arm_neon.h
	OLD_FILES+=usr/include/clang/3.5.0/avx2intrin.h
	OLD_FILES+=usr/include/clang/3.5.0/avxintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/bmi2intrin.h
	OLD_FILES+=usr/include/clang/3.5.0/bmiintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/cpuid.h
	OLD_FILES+=usr/include/clang/3.5.0/emmintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/f16cintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/fma4intrin.h
	OLD_FILES+=usr/include/clang/3.5.0/fmaintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/ia32intrin.h
	OLD_FILES+=usr/include/clang/3.5.0/immintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/lzcntintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/mm3dnow.h
	OLD_FILES+=usr/include/clang/3.5.0/mm_malloc.h
	OLD_FILES+=usr/include/clang/3.5.0/mmintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/module.modulemap
	OLD_FILES+=usr/include/clang/3.5.0/nmmintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/pmmintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/popcntintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/prfchwintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/rdseedintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/rtmintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/shaintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/smmintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/tbmintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/tmmintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/wmmintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/x86intrin.h
	OLD_FILES+=usr/include/clang/3.5.0/xmmintrin.h
	OLD_FILES+=usr/include/clang/3.5.0/xopintrin.h
	OLD_DIRS+=usr/include/clang/3.5.0
	OLD_FILES+=usr/lib/clang/3.5.0/lib/freebsd/libclang_rt.asan-i386.a
	OLD_FILES+=usr/lib/clang/3.5.0/lib/freebsd/libclang_rt.asan-x86_64.a
	OLD_FILES+=usr/lib/clang/3.5.0/lib/freebsd/libclang_rt.asan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.5.0/lib/freebsd/libclang_rt.asan_cxx-x86_64.a
	OLD_FILES+=usr/lib/clang/3.5.0/lib/freebsd/libclang_rt.profile-arm.a
	OLD_FILES+=usr/lib/clang/3.5.0/lib/freebsd/libclang_rt.profile-i386.a
	OLD_FILES+=usr/lib/clang/3.5.0/lib/freebsd/libclang_rt.profile-x86_64.a
	OLD_FILES+=usr/lib/clang/3.5.0/lib/freebsd/libclang_rt.san-i386.a
	OLD_FILES+=usr/lib/clang/3.5.0/lib/freebsd/libclang_rt.san-x86_64.a
	OLD_FILES+=usr/lib/clang/3.5.0/lib/freebsd/libclang_rt.ubsan-i386.a
	OLD_FILES+=usr/lib/clang/3.5.0/lib/freebsd/libclang_rt.ubsan-x86_64.a
	OLD_FILES+=usr/lib/clang/3.5.0/lib/freebsd/libclang_rt.ubsan_cxx-i386.a
	OLD_FILES+=usr/lib/clang/3.5.0/lib/freebsd/libclang_rt.ubsan_cxx-x86_64.a
	OLD_DIRS+=usr/lib/clang/3.5.0/lib/freebsd
	OLD_DIRS+=usr/lib/clang/3.5.0/lib
	OLD_DIRS+=usr/lib/clang/3.5.0
	# 20150102: removal of asr(4)
	OLD_FILES+=usr/share/man/man4/asr.4.gz
	# 20150102: removal of texinfo
	OLD_FILES+=usr/bin/info
	OLD_FILES+=usr/bin/infokey
	OLD_FILES+=usr/bin/install-info
	OLD_FILES+=usr/bin/makeinfo
	OLD_FILES+=usr/bin/texindex
	OLD_FILES+=usr/share/info/am-utils.info.gz
	OLD_FILES+=usr/share/info/as.info.gz
	OLD_FILES+=usr/share/info/binutils.info.gz
	OLD_FILES+=usr/share/info/com_err.info.gz
	OLD_FILES+=usr/share/info/cpp.info.gz
	OLD_FILES+=usr/share/info/cppinternals.info.gz
	OLD_FILES+=usr/share/info/diff.info.gz
	OLD_FILES+=usr/share/info/dir
	OLD_FILES+=usr/share/info/gcc.info.gz
	OLD_FILES+=usr/share/info/gccint.info.gz
	OLD_FILES+=usr/share/info/gdb.info.gz
	OLD_FILES+=usr/share/info/gdbint.info.gz
	OLD_FILES+=usr/share/info/gperf.info.gz
	OLD_FILES+=usr/share/info/grep.info.gz
	OLD_FILES+=usr/share/info/groff.info.gz
	OLD_FILES+=usr/share/info/heimdal.info.gz
	OLD_FILES+=usr/share/info/history.info.gz
	OLD_FILES+=usr/share/info/info-stnd.info.gz
	OLD_FILES+=usr/share/info/info.info.gz
	OLD_FILES+=usr/share/info/ld.info.gz
	OLD_FILES+=usr/share/info/regex.info.gz
	OLD_FILES+=usr/share/info/rluserman.info.gz
	OLD_FILES+=usr/share/info/stabs.info.gz
	OLD_FILES+=usr/share/info/texinfo.info.gz
	OLD_FILES+=usr/share/man/man1/info.1.gz
	OLD_FILES+=usr/share/man/man1/infokey.1.gz
	OLD_FILES+=usr/share/man/man1/install-info.1.gz
	OLD_FILES+=usr/share/man/man1/makeinfo.1.gz
	OLD_FILES+=usr/share/man/man1/texindex.1.gz
	OLD_FILES+=usr/share/man/man5/info.5.gz
	OLD_FILES+=usr/share/man/man5/texinfo.5.gz
	OLD_DIRS+=usr/share/info
	# 20141231: new clang import which bumps version from 3.4.1 to 3.5.0.
	OLD_FILES+=usr/include/clang/3.4.1/__wmmintrin_aes.h
	OLD_FILES+=usr/include/clang/3.4.1/__wmmintrin_pclmul.h
	OLD_FILES+=usr/include/clang/3.4.1/altivec.h
	OLD_FILES+=usr/include/clang/3.4.1/ammintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/arm_neon.h
	OLD_FILES+=usr/include/clang/3.4.1/avx2intrin.h
	OLD_FILES+=usr/include/clang/3.4.1/avxintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/bmi2intrin.h
	OLD_FILES+=usr/include/clang/3.4.1/bmiintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/cpuid.h
	OLD_FILES+=usr/include/clang/3.4.1/emmintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/f16cintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/fma4intrin.h
	OLD_FILES+=usr/include/clang/3.4.1/fmaintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/immintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/lzcntintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/mm3dnow.h
	OLD_FILES+=usr/include/clang/3.4.1/mm_malloc.h
	OLD_FILES+=usr/include/clang/3.4.1/mmintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/module.map
	OLD_FILES+=usr/include/clang/3.4.1/nmmintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/pmmintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/popcntintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/prfchwintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/rdseedintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/rtmintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/shaintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/smmintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/tbmintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/tmmintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/wmmintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/x86intrin.h
	OLD_FILES+=usr/include/clang/3.4.1/xmmintrin.h
	OLD_FILES+=usr/include/clang/3.4.1/xopintrin.h
	OLD_DIRS+=usr/include/clang/3.4.1
	# 20141225: Remove gpib/ieee488
	OLD_FILES+=usr/include/dev/ieee488/ibfoo_int.h
	OLD_FILES+=usr/include/dev/ieee488/tnt4882.h
	OLD_FILES+=usr/include/dev/ieee488/ugpib.h
	OLD_FILES+=usr/include/dev/ieee488/upd7210.h
	OLD_DIRS+=usr/include/dev/ieee488
	OLD_FILES+=usr/include/gpib/gpib.h
	OLD_DIRS+=usr/include/gpib
	OLD_FILES+=usr/lib/libgpib.a
	OLD_FILES+=usr/lib/libgpib_p.a
	OLD_FILES+=usr/lib/libgpib.so
	OLD_LIBS+=usr/lib/libgpib.so.3
	OLD_FILES+=usr/lib/libgpib_p.a
	OLD_FILES+=usr/lib32/libgpib.a
	OLD_FILES+=usr/lib32/libgpib_p.a
	OLD_FILES+=usr/lib32/libgpib.so
	OLD_LIBS+=usr/lib32/libgpib.so.3
	OLD_FILES+=usr/share/man/man3/gpib.3.gz
	OLD_FILES+=usr/share/man/man3/ibclr.3.gz
	OLD_FILES+=usr/share/man/man3/ibdev.3.gz
	OLD_FILES+=usr/share/man/man3/ibdma.3.gz
	OLD_FILES+=usr/share/man/man3/ibeos.3.gz
	OLD_FILES+=usr/share/man/man3/ibeot.3.gz
	OLD_FILES+=usr/share/man/man3/ibloc.3.gz
	OLD_FILES+=usr/share/man/man3/ibonl.3.gz
	OLD_FILES+=usr/share/man/man3/ibpad.3.gz
	OLD_FILES+=usr/share/man/man3/ibrd.3.gz
	OLD_FILES+=usr/share/man/man3/ibsad.3.gz
	OLD_FILES+=usr/share/man/man3/ibsic.3.gz
	OLD_FILES+=usr/share/man/man3/ibtmo.3.gz
	OLD_FILES+=usr/share/man/man3/ibtrg.3.gz
	OLD_FILES+=usr/share/man/man3/ibwrt.3.gz
	OLD_FILES+=usr/share/man/man4/gpib.4.gz
	OLD_FILES+=usr/share/man/man4/pcii.4.gz
	OLD_FILES+=usr/share/man/man4/tnt4882.4.gz
	# 20141224: libxo moved to /lib
	OLD_LIBS+=usr/lib/libxo.so.0
	# 20141223: remove in6_gif.h, in_gif.h and if_stf.h
	OLD_FILES+=usr/include/net/if_stf.h
	OLD_FILES+=usr/include/netinet/in_gif.h
	OLD_FILES+=usr/include/netinet6/in6_gif.h
	# 20141209: pw tests broken into a file per command
	OLD_FILES+=usr/tests/usr.sbin/pw/pw_delete
	OLD_FILES+=usr/tests/usr.sbin/pw/pw_modify
	# 20141202: update to mandoc CVS 20141201
	OLD_FILES+=usr.bin/preconv
	OLD_FILES+=usr/share/man/man1/preconv.1.gz
	# 20141129: mrouted rc.d scripts removed from base
	OLD_FILES+=etc/rc.d/mrouted
	# 20141126: convert sbin/mdconfig/tests to ATF format tests
	OLD_FILES+=usr/tests/sbin/mdconfig/legacy_test
	OLD_FILES+=usr/tests/sbin/mdconfig/mdconfig.test
	OLD_FILES+=usr/tests/sbin/mdconfig/run.pl
	# 20141126: remove xform_ipip decapsulation fallback
	OLD_FILES+=usr/include/netipsec/ipip_var.h
	# 20141122: mandoc updated to 1.13.1
	OLD_FILES+=usr/share/mdocml/external.png
	# 20141111: SF_KQUEUE code removed
	OLD_FILES+=usr/include/sys/sf_base.h
	OLD_FILES+=usr/include/sys/sf_sync.h
	# 20141109: faith/faithd removal
	OLD_FILES+=etc/rc.d/faith
	OLD_FILES+=usr/share/man/man4/faith.4.gz
	OLD_FILES+=usr/share/man/man4/if_faith.4.gz
	OLD_FILES+=usr/sbin/faithd
	OLD_FILES+=usr/share/man/man8/faithd.8.gz
	# 20141107: overhaul if_gre(4)
	OLD_FILES+=usr/include/netinet/ip_gre.h
	# 20141102: postrandom obsoleted by new /dev/random code
	OLD_FILES+=etc/rc.d/postrandom
	# 20141031: initrandom obsoleted by new /dev/random code
	OLD_FILES+=etc/rc.d/initrandom
	# 20141030: atf 0.21 import
	OLD_FILES+=usr/share/man/man3/atf-c++-api.3.gz
	# 20141028: debug files accidentally installed as directory name
	OLD_FILES+=usr/lib/debug/usr/lib/i18n
	OLD_FILES+=usr/lib/debug/usr/lib/private
	OLD_FILES+=usr/lib/debug/usr/lib32/i18n
	OLD_FILES+=usr/lib/debug/usr/lib32/private
	# 20141015: OpenSSL 1.0.1j import
	OLD_FILES+=usr/share/openssl/man/man3/CMS_sign_add1_signer.3.gz
	# 20141003: libproc version bump
	OLD_LIBS+=usr/lib/libproc.so.2
	OLD_LIBS+=usr/lib32/libproc.so.2
	# 20140922: sleepq_calc_signal_retval.9 and sleepq_catch_signals.9 removed
	OLD_FILES+=usr/share/man/man9/sleepq_calc_signal_retval.9.gz
	OLD_FILES+=usr/share/man/man9/sleepq_catch_signals.9.gz
	# 20140917: hv_kvpd rc.d script removed in favor of devd configuration
	OLD_FILES+=etc/rc.d/hv_kvpd
	# 20140917: libnv was accidentally being installed to /usr/lib instead of /lib
	OLD_LIBS+=usr/lib/libnv.so.0
	# 20140829: rc.d/kerberos removed
	OLD_FILES+=etc/rc.d/kerberos
	# 20140814: libopie version bump
	OLD_LIBS+=usr/lib/libopie.so.7
	OLD_LIBS+=usr/lib32/libopie.so.7
	# 20140811: otp-sha renamed to otp-sha1
	OLD_FILES+=usr/bin/otp-sha
	OLD_FILES+=usr/share/man/man1/otp-sha.1.gz
	# 20140807: Remove private lib files that should not be installed.
	OLD_FILES+=usr/lib32/private/libatf-c.a
	OLD_FILES+=usr/lib32/private/libatf-c.so
	OLD_FILES+=usr/lib32/private/libatf-c_p.a
	OLD_FILES+=usr/lib32/private/libatf-c++.a
	OLD_FILES+=usr/lib32/private/libatf-c++.so
	OLD_FILES+=usr/lib32/private/libatf-c++_p.a
	OLD_FILES+=usr/lib32/private/libbsdstat.a
	OLD_FILES+=usr/lib32/private/libbsdstat.so
	OLD_FILES+=usr/lib32/private/libbsdstat_p.a
	OLD_FILES+=usr/lib32/private/libheimipcc.a
	OLD_FILES+=usr/lib32/private/libheimipcc.so
	OLD_FILES+=usr/lib32/private/libheimipcc_p.a
	OLD_FILES+=usr/lib32/private/libheimipcs.a
	OLD_FILES+=usr/lib32/private/libheimipcs.so
	OLD_FILES+=usr/lib32/private/libheimipcs_p.a
	OLD_FILES+=usr/lib32/private/libldns.a
	OLD_FILES+=usr/lib32/private/libldns.so
	OLD_FILES+=usr/lib32/private/libldns_p.a
	OLD_FILES+=usr/lib32/private/libssh.a
	OLD_FILES+=usr/lib32/private/libssh.so
	OLD_FILES+=usr/lib32/private/libssh_p.a
	OLD_FILES+=usr/lib32/private/libunbound.a
	OLD_FILES+=usr/lib32/private/libunbound.so
	OLD_FILES+=usr/lib32/private/libunbound_p.a
	OLD_FILES+=usr/lib32/private/libucl.a
	OLD_FILES+=usr/lib32/private/libucl.so
	OLD_FILES+=usr/lib32/private/libucl_p.a
	OLD_FILES+=usr/lib/private/libatf-c.a
	OLD_FILES+=usr/lib/private/libatf-c.so
	OLD_FILES+=usr/lib/private/libatf-c_p.a
	OLD_FILES+=usr/lib/private/libatf-c++.a
	OLD_FILES+=usr/lib/private/libatf-c++.so
	OLD_FILES+=usr/lib/private/libatf-c++_p.a
	OLD_FILES+=usr/lib/private/libbsdstat.a
	OLD_FILES+=usr/lib/private/libbsdstat.so
	OLD_FILES+=usr/lib/private/libbsdstat_p.a
	OLD_FILES+=usr/lib/private/libheimipcc.a
	OLD_FILES+=usr/lib/private/libheimipcc.so
	OLD_FILES+=usr/lib/private/libheimipcc_p.a
	OLD_FILES+=usr/lib/private/libheimipcs.a
	OLD_FILES+=usr/lib/private/libheimipcs.so
	OLD_FILES+=usr/lib/private/libheimipcs_p.a
	OLD_FILES+=usr/lib/private/libldns.a
	OLD_FILES+=usr/lib/private/libldns.so
	OLD_FILES+=usr/lib/private/libldns_p.a
	OLD_FILES+=usr/lib/private/libssh.a
	OLD_FILES+=usr/lib/private/libssh.so
	OLD_FILES+=usr/lib/private/libssh_p.a
	OLD_FILES+=usr/lib/private/libunbound.a
	OLD_FILES+=usr/lib/private/libunbound.so
	OLD_FILES+=usr/lib/private/libunbound_p.a
	OLD_FILES+=usr/lib/private/libucl.a
	OLD_FILES+=usr/lib/private/libucl.so
	OLD_FILES+=usr/lib/private/libucl_p.a
	# 20140803: Remove an obsolete man page
	OLD_FILES+=usr/share/man/man9/pmap_change_wiring.9.gz
	# 20140731
	OLD_FILES+=usr/share/man/man9/SYSCTL_ADD_OID.9.gz
	# 20140728: libsbuf restored to old version.
	OLD_LIBS+=lib/libsbuf.so.7
	OLD_LIBS+=usr/lib32/libsbuf.so.7
	# 20140728: Remove an obsolete man page
	OLD_FILES+=usr/share/man/man9/VOP_GETVOBJECT.9.gz
	OLD_FILES+=usr/share/man/man9/VOP_CREATEVOBJECT.9.gz
	OLD_FILES+=usr/share/man/man9/VOP_DESTROYVOBJECT.9.gz
	# 20140723: renamed to PCBGROUP.9
	OLD_FILES+=usr/share/man/man9/PCBGROUPS.9.gz
	# 20140722: browse_packages_ftp.sh removed
	OLD_FILES+=usr/share/examples/bsdconfig/browse_packages_ftp.sh
	# 20140718: Remove obsolete man pages
	OLD_FILES+=usr/share/man/man9/zero_copy.9.gz
	OLD_FILES+=usr/share/man/man9/zero_copy_sockets.9.gz
	# 20140718: Remove an obsolete man page
	OLD_FILES+=usr/share/man/man9/pmap_page_protect.9.gz
	# 20140717: Remove an obsolete man page
	OLD_FILES+=usr/share/man/man9/pmap_clear_reference.9.gz
	# 20140716: Remove an incorrectly named man page
	OLD_FILES+=usr/share/man/man9/pmap_ts_modified.9.gz
	# 20140712: Removal of bsd.dtrace.mk
	OLD_FILES+=usr/share/mk/bsd.dtrace.mk
	# 20140705: turn libreadline into an internal lib
	OLD_LIBS+=lib/libreadline.so.8
	OLD_FILES+=usr/lib/libreadline.a
	OLD_FILES+=usr/lib/libreadline_p.a
	OLD_FILES+=usr/lib/libreadline.so
	OLD_FILES+=usr/lib/libhistory.a
	OLD_FILES+=usr/lib/libhistory_p.a
	OLD_FILES+=usr/lib/libhistory.so
	OLD_LIBS+=usr/lib/libhistory.so.8
	OLD_FILES+=usr/lib32/libhistory.a
	OLD_FILES+=usr/lib32/libhistory.so
	OLD_LIBS+=usr/lib32/libhistory.so.8
	OLD_FILES+=usr/lib32/libhistory_p.a
	OLD_FILES+=usr/lib32/libreadline.a
	OLD_FILES+=usr/lib32/libreadline.so
	OLD_LIBS+=usr/lib32/libreadline.so.8
	OLD_FILES+=usr/lib32/libreadline_p.a
	OLD_FILES+=usr/include/readline/chardefs.h
	OLD_FILES+=usr/include/readline/history.h
	OLD_FILES+=usr/include/readline/keymaps.h
	OLD_FILES+=usr/include/readline/readline.h
	OLD_FILES+=usr/include/readline/tilde.h
	OLD_FILES+=usr/include/readline/rlconf.h
	OLD_FILES+=usr/include/readline/rlstdc.h
	OLD_FILES+=usr/include/readline/rltypedefs.h
	OLD_FILES+=usr/include/readline/rltypedefs.h
	OLD_DIRS+=usr/include/readline
	OLD_FILES+=usr/share/info/readline.info.gz
	OLD_FILES+=usr/share/man/man3/readline.3.gz
	OLD_FILES+=usr/share/man/man3/rlhistory.3.gz
	# 20140625: csup removal
	OLD_FILES+=usr/bin/csup
	OLD_FILES+=usr/bin/cpasswd
	OLD_FILES+=usr/share/man/man1/csup.1.gz
	OLD_FILES+=usr/share/man/man1/cpasswd.1.gz
	OLD_FILES+=usr/share/examples/cvsup/README
	OLD_FILES+=usr/share/examples/cvsup/cvs-supfile
	OLD_FILES+=usr/share/examples/cvsup/stable-supfile
	OLD_FILES+=usr/share/examples/cvsup/standard-supfile
	OLD_DIRS+=usr/share/examples/cvsup
	# 20140614: send-pr removal
	OLD_FILES+=usr/bin/sendbug
	OLD_FILES+=usr/share/info/send-pr.info.gz
	OLD_FILES+=usr/share/man/man1/send-pr.1.gz
	OLD_FILES+=usr/share/man/man1/sendbug.1.gz
	OLD_FILES+=etc/gnats/freefall
	OLD_DIRS+=etc/gnats
	# 20140512: new clang import which bumps version from 3.4 to 3.4.1.
	OLD_FILES+=usr/include/clang/3.4/__wmmintrin_aes.h
	OLD_FILES+=usr/include/clang/3.4/__wmmintrin_pclmul.h
	OLD_FILES+=usr/include/clang/3.4/altivec.h
	OLD_FILES+=usr/include/clang/3.4/ammintrin.h
	OLD_FILES+=usr/include/clang/3.4/avx2intrin.h
	OLD_FILES+=usr/include/clang/3.4/avxintrin.h
	OLD_FILES+=usr/include/clang/3.4/bmi2intrin.h
	OLD_FILES+=usr/include/clang/3.4/bmiintrin.h
	OLD_FILES+=usr/include/clang/3.4/cpuid.h
	OLD_FILES+=usr/include/clang/3.4/emmintrin.h
	OLD_FILES+=usr/include/clang/3.4/f16cintrin.h
	OLD_FILES+=usr/include/clang/3.4/fma4intrin.h
	OLD_FILES+=usr/include/clang/3.4/fmaintrin.h
	OLD_FILES+=usr/include/clang/3.4/immintrin.h
	OLD_FILES+=usr/include/clang/3.4/lzcntintrin.h
	OLD_FILES+=usr/include/clang/3.4/mm3dnow.h
	OLD_FILES+=usr/include/clang/3.4/mm_malloc.h
	OLD_FILES+=usr/include/clang/3.4/mmintrin.h
	OLD_FILES+=usr/include/clang/3.4/module.map
	OLD_FILES+=usr/include/clang/3.4/nmmintrin.h
	OLD_FILES+=usr/include/clang/3.4/pmmintrin.h
	OLD_FILES+=usr/include/clang/3.4/popcntintrin.h
	OLD_FILES+=usr/include/clang/3.4/prfchwintrin.h
	OLD_FILES+=usr/include/clang/3.4/rdseedintrin.h
	OLD_FILES+=usr/include/clang/3.4/rtmintrin.h
	OLD_FILES+=usr/include/clang/3.4/shaintrin.h
	OLD_FILES+=usr/include/clang/3.4/smmintrin.h
	OLD_FILES+=usr/include/clang/3.4/tbmintrin.h
	OLD_FILES+=usr/include/clang/3.4/tmmintrin.h
	OLD_FILES+=usr/include/clang/3.4/wmmintrin.h
	OLD_FILES+=usr/include/clang/3.4/x86intrin.h
	OLD_FILES+=usr/include/clang/3.4/xmmintrin.h
	OLD_FILES+=usr/include/clang/3.4/xopintrin.h
	OLD_FILES+=usr/include/clang/3.4/arm_neon.h
	OLD_FILES+=usr/include/clang/3.4/module.map
	OLD_DIRS+=usr/include/clang/3.4
	# 20140505: Bogusly installing src.opts.mk
	OLD_FILES+=usr/share/mk/src.opts.mk
	# 20140505: Reject PR kern/187551
	OLD_FILES+=usr/tests/sbin/ifconfig/fibs_test
	# 20140502: Removal of lindev(4)
	OLD_FILES+=usr/share/man/man4/lindev.4.gz
	# 20140425
	OLD_FILES+=usr/lib/libssp_p.a
	OLD_FILES+=usr/lib/libstand_p.a
	OLD_FILES+=usr/lib32/libssp_p.a
	OLD_FILES+=usr/lib32/libstand_p.a
	# 20140413: Removed NO_MANCOMPRESS from mount_fusefs
	OLD_FILES+=usr/share/man/man8/mount_fusefs.8
	# 20140314: AppleTalk
	OLD_DIRS+=usr/include/netatalk
	OLD_FILES+=usr/include/netatalk/aarp.h
	OLD_FILES+=usr/include/netatalk/at.h
	OLD_FILES+=usr/include/netatalk/at_extern.h
	OLD_FILES+=usr/include/netatalk/at_var.h
	OLD_FILES+=usr/include/netatalk/ddp.h
	OLD_FILES+=usr/include/netatalk/ddp_pcb.h
	OLD_FILES+=usr/include/netatalk/ddp_var.h
	OLD_FILES+=usr/include/netatalk/endian.h
	OLD_FILES+=usr/include/netatalk/phase2.h
	# 20140314: Remove IPX/SPX
	OLD_LIBS+=lib/libipx.so.5
	OLD_FILES+=usr/include/netipx/ipx.h
	OLD_FILES+=usr/include/netipx/ipx_if.h
	OLD_FILES+=usr/include/netipx/ipx_pcb.h
	OLD_FILES+=usr/include/netipx/ipx_var.h
	OLD_FILES+=usr/include/netipx/spx.h
	OLD_FILES+=usr/include/netipx/spx_debug.h
	OLD_FILES+=usr/include/netipx/spx_timer.h
	OLD_FILES+=usr/include/netipx/spx_var.h
	OLD_DIRS+=usr/include/netipx
	OLD_FILES+=usr/lib/libipx.a
	OLD_FILES+=usr/lib/libipx.so
	OLD_FILES+=usr/lib/libipx_p.a
	OLD_FILES+=usr/lib32/libipx.a
	OLD_FILES+=usr/lib32/libipx.so
	OLD_LIBS+=usr/lib32/libipx.so.5
	OLD_FILES+=usr/lib32/libipx_p.a
	OLD_FILES+=usr/sbin/IPXrouted
	OLD_FILES+=usr/share/man/man3/ipx.3.gz
	OLD_FILES+=usr/share/man/man3/ipx_addr.3.gz
	OLD_FILES+=usr/share/man/man3/ipx_ntoa.3.gz
	OLD_FILES+=usr/share/man/man4/ef.4.gz
	OLD_FILES+=usr/share/man/man4/if_ef.4.gz
	OLD_FILES+=usr/share/man/man8/IPXrouted.8.gz
	# 20140314: bsdconfig usermgmt rewrite
	OLD_FILES+=usr/libexec/bsdconfig/070.usermgmt/userinput
	# 20140307: bsdconfig groupmgmt rewrite
	OLD_FILES+=usr/libexec/bsdconfig/070.usermgmt/groupinput
	# 20140223: Remove libyaml
	OLD_FILES+=usr/lib/private/libyaml.a
	OLD_FILES+=usr/lib/private/libyaml.so
	OLD_LIBS+=usr/lib/private/libyaml.so.1
	OLD_FILES+=usr/lib/private/libyaml_p.a
	OLD_FILES+=usr/lib32/private/libyaml.a
	OLD_FILES+=usr/lib32/private/libyaml.so
	OLD_LIBS+=usr/lib32/private/libyaml.so.1
	OLD_FILES+=usr/lib32/private/libyaml_p.a
	# 20140216: new clang import which bumps version from 3.3 to 3.4.
	OLD_FILES+=usr/bin/llvm-prof
	OLD_FILES+=usr/include/clang/3.3/__wmmintrin_aes.h
	OLD_FILES+=usr/include/clang/3.3/__wmmintrin_pclmul.h
	OLD_FILES+=usr/include/clang/3.3/altivec.h
	OLD_FILES+=usr/include/clang/3.3/ammintrin.h
	OLD_FILES+=usr/include/clang/3.3/avx2intrin.h
	OLD_FILES+=usr/include/clang/3.3/avxintrin.h
	OLD_FILES+=usr/include/clang/3.3/bmi2intrin.h
	OLD_FILES+=usr/include/clang/3.3/bmiintrin.h
	OLD_FILES+=usr/include/clang/3.3/cpuid.h
	OLD_FILES+=usr/include/clang/3.3/emmintrin.h
	OLD_FILES+=usr/include/clang/3.3/f16cintrin.h
	OLD_FILES+=usr/include/clang/3.3/fma4intrin.h
	OLD_FILES+=usr/include/clang/3.3/fmaintrin.h
	OLD_FILES+=usr/include/clang/3.3/immintrin.h
	OLD_FILES+=usr/include/clang/3.3/lzcntintrin.h
	OLD_FILES+=usr/include/clang/3.3/mm3dnow.h
	OLD_FILES+=usr/include/clang/3.3/mm_malloc.h
	OLD_FILES+=usr/include/clang/3.3/mmintrin.h
	OLD_FILES+=usr/include/clang/3.3/module.map
	OLD_FILES+=usr/include/clang/3.3/nmmintrin.h
	OLD_FILES+=usr/include/clang/3.3/pmmintrin.h
	OLD_FILES+=usr/include/clang/3.3/popcntintrin.h
	OLD_FILES+=usr/include/clang/3.3/prfchwintrin.h
	OLD_FILES+=usr/include/clang/3.3/rdseedintrin.h
	OLD_FILES+=usr/include/clang/3.3/rtmintrin.h
	OLD_FILES+=usr/include/clang/3.3/smmintrin.h
	OLD_FILES+=usr/include/clang/3.3/tmmintrin.h
	OLD_FILES+=usr/include/clang/3.3/wmmintrin.h
	OLD_FILES+=usr/include/clang/3.3/x86intrin.h
	OLD_FILES+=usr/include/clang/3.3/xmmintrin.h
	OLD_FILES+=usr/include/clang/3.3/xopintrin.h
	OLD_FILES+=usr/share/man/man1/llvm-prof.1.gz
	OLD_DIRS+=usr/include/clang/3.3
	# 20140216: nve(4) removed
	OLD_FILES+=usr/share/man/man4/if_nve.4.gz
	OLD_FILES+=usr/share/man/man4/nve.4.gz
	# 20140205: Open Firmware device moved
	OLD_FILES+=usr/include/dev/ofw/ofw_nexus.h
	# 20140128: libelf and libdwarf import
	OLD_LIBS+=usr/lib/libelf.so.1
	OLD_LIBS+=usr/lib32/libelf.so.1
	OLD_LIBS+=usr/lib/libdwarf.so.3
	OLD_LIBS+=usr/lib32/libdwarf.so.3
	# 20140123: apicvar header moved to x86
	OLD_FILES+=usr/include/machine/apicvar.h
	# 20131215: libcam version bumped
	OLD_LIBS+=lib/libcam.so.6 usr/lib32/libcam.so.6
	# 20131202: libcapsicum and libcasper moved to /lib/
	OLD_LIBS+=usr/lib/libcapsicum.so.0
	OLD_LIBS+=usr/lib/libcasper.so.0
	# 20131109: extattr(2) mlinks fixed
	OLD_FILES+=usr/share/man/man2/extattr_delete_list.2.gz
	OLD_FILES+=usr/share/man/man2/extattr_get_list.2.gz
	# 20131107: example files removed
	OLD_FILES+=usr/share/examples/libusb20/aux.c
	OLD_FILES+=usr/share/examples/libusb20/aux.h
	# 20131103: WITH_LIBICONV_COMPAT removal
	OLD_FILES+=usr/include/_libiconv_compat.h
	OLD_FILES+=usr/lib/libiconv.a
	OLD_FILES+=usr/lib/libiconv.so
	OLD_LIBS+=usr/lib/libiconv.so.3
	OLD_FILES+=usr/lib/libiconv_p.a
	OLD_FILES+=usr/lib32/libiconv.a
	OLD_FILES+=usr/lib32/libiconv.so
	OLD_LIBS+=usr/lib32/libiconv.so.3
	OLD_FILES+=usr/lib32/libiconv_p.a
	# 20131103: removal of utxrm(8), use 'utx rm' instead.
	OLD_FILES+=usr/sbin/utxrm
	OLD_FILES+=usr/share/man/man8/utxrm.8.gz
	# 20131031: pkg_install has been removed
	OLD_FILES+=etc/periodic/daily/220.backup-pkgdb
	OLD_FILES+=etc/periodic/daily/490.status-pkg-changes
	OLD_FILES+=etc/periodic/security/460.chkportsum
	OLD_FILES+=etc/periodic/weekly/400.status-pkg
	OLD_FILES+=usr/sbin/pkg_add
	OLD_FILES+=usr/sbin/pkg_create
	OLD_FILES+=usr/sbin/pkg_delete
	OLD_FILES+=usr/sbin/pkg_info
	OLD_FILES+=usr/sbin/pkg_updating
	OLD_FILES+=usr/sbin/pkg_version
	OLD_FILES+=usr/share/man/man1/pkg_add.1.gz
	OLD_FILES+=usr/share/man/man1/pkg_create.1.gz
	OLD_FILES+=usr/share/man/man1/pkg_delete.1.gz
	OLD_FILES+=usr/share/man/man1/pkg_info.1.gz
	OLD_FILES+=usr/share/man/man1/pkg_updating.1.gz
	OLD_FILES+=usr/share/man/man1/pkg_version.1.gz
	# 20131030: /etc/keys moved to /usr/share/keys
	OLD_DIRS+=etc/keys
	OLD_DIRS+=etc/keys/pkg
	OLD_DIRS+=etc/keys/pkg/revoked
	OLD_DIRS+=etc/keys/pkg/trusted
	OLD_FILES+=etc/keys/pkg/trusted/pkg.freebsd.org.2013102301
	# 20131028: ng_fec(4) removed
	OLD_FILES+=usr/include/netgraph/ng_fec.h
	OLD_FILES+=usr/share/man/man4/ng_fec.4.gz
	# 20131027: header moved
	OLD_FILES+=usr/include/net/pf_mtag.h
	# 20131023: remove never used iscsi directory
	OLD_DIRS+=usr/share/examples/iscsi
	# 20131021: isf(4) removed
	OLD_FILES+=usr/sbin/isfctl
	OLD_FILES+=usr/share/man/man4/isf.4.gz
	OLD_FILES+=usr/share/man/man8/isfctl.8.gz
	# 20131014: libbsdyml becomes private
	OLD_FILES+=usr/lib/libbsdyml.a
	OLD_FILES+=usr/lib/libbsdyml.so
	OLD_LIBS+=usr/lib/libbsdyml.so.0
	OLD_FILES+=usr/lib/libbsdyml_p.a
	OLD_FILES+=usr/lib32/libbsdyml.a
	OLD_FILES+=usr/lib32/libbsdyml.so
	OLD_LIBS+=usr/lib32/libbsdyml.so.0
	OLD_FILES+=usr/lib32/libbsdyml_p.a
	OLD_FILES+=usr/share/man/man3/libbsdyml.3.gz
	OLD_FILES+=usr/include/bsdyml.h
	# 20131013: Removal of the ATF tools
	OLD_FILES+=etc/atf/FreeBSD.conf
	OLD_FILES+=etc/atf/atf-run.hooks
	OLD_FILES+=etc/atf/common.conf
	OLD_FILES+=usr/bin/atf-config
	OLD_FILES+=usr/bin/atf-report
	OLD_FILES+=usr/bin/atf-run
	OLD_FILES+=usr/bin/atf-version
	OLD_FILES+=usr/share/atf/atf-run.hooks
	OLD_FILES+=usr/share/examples/atf/atf-run.hooks
	OLD_FILES+=usr/share/examples/atf/tests-results.css
	OLD_FILES+=usr/share/man/man1/atf-config.1.gz
	OLD_FILES+=usr/share/man/man1/atf-report.1.gz
	OLD_FILES+=usr/share/man/man1/atf-run.1.gz
	OLD_FILES+=usr/share/man/man1/atf-version.1.gz
	OLD_FILES+=usr/share/man/man5/atf-formats.5.gz
	OLD_FILES+=usr/share/xml/atf/tests-results.dtd
	OLD_FILES+=usr/share/xsl/atf/tests-results.xsl
	OLD_DIRS+=etc/atf
	OLD_DIRS+=usr/share/examples/atf
	OLD_DIRS+=usr/share/xml/atf
	OLD_DIRS+=usr/share/xml
	OLD_DIRS+=usr/share/xsl/atf
	OLD_DIRS+=usr/share/xsl
	# 20131009: freebsd-version moved from /libexec to /bin
	OLD_FILES+=libexec/freebsd-version
	# 20131001: ar and ranlib from binutils not used
	OLD_FILES+=usr/bin/gnu-ar
	OLD_FILES+=usr/bin/gnu-ranlib
	OLD_FILES+=usr/share/man/man1/gnu-ar.1.gz
	OLD_FILES+=usr/share/man/man1/gnu-ranlib.1.gz
	# 20130930: BIND removed from base
	OLD_FILES+=etc/mtree/BIND.chroot.dist
	OLD_FILES+=etc/namedb
	OLD_FILES+=etc/periodic/daily/470.status-named
	OLD_FILES+=usr/bin/dig
	OLD_FILES+=usr/bin/nslookup
	OLD_FILES+=usr/bin/nsupdate
	OLD_DIRS+=usr/include/lwres
	OLD_FILES+=usr/include/lwres/context.h
	OLD_FILES+=usr/include/lwres/int.h
	OLD_FILES+=usr/include/lwres/ipv6.h
	OLD_FILES+=usr/include/lwres/lang.h
	OLD_FILES+=usr/include/lwres/list.h
	OLD_FILES+=usr/include/lwres/lwbuffer.h
	OLD_FILES+=usr/include/lwres/lwpacket.h
	OLD_FILES+=usr/include/lwres/lwres.h
	OLD_FILES+=usr/include/lwres/net.h
	OLD_FILES+=usr/include/lwres/netdb.h
	OLD_FILES+=usr/include/lwres/platform.h
	OLD_FILES+=usr/include/lwres/result.h
	OLD_FILES+=usr/include/lwres/string.h
	OLD_FILES+=usr/include/lwres/version.h
	OLD_FILES+=usr/lib/liblwres.a
	OLD_FILES+=usr/lib/liblwres.so
	OLD_LIBS+=usr/lib/liblwres.so.90
	OLD_FILES+=usr/lib/liblwres_p.a
	OLD_FILES+=usr/sbin/arpaname
	OLD_FILES+=usr/sbin/ddns-confgen
	OLD_FILES+=usr/sbin/dnssec-dsfromkey
	OLD_FILES+=usr/sbin/dnssec-keyfromlabel
	OLD_FILES+=usr/sbin/dnssec-keygen
	OLD_FILES+=usr/sbin/dnssec-revoke
	OLD_FILES+=usr/sbin/dnssec-settime
	OLD_FILES+=usr/sbin/dnssec-signzone
	OLD_FILES+=usr/sbin/dnssec-verify
	OLD_FILES+=usr/sbin/genrandom
	OLD_FILES+=usr/sbin/isc-hmac-fixup
	OLD_FILES+=usr/sbin/lwresd
	OLD_FILES+=usr/sbin/named
	OLD_FILES+=usr/sbin/named-checkconf
	OLD_FILES+=usr/sbin/named-checkzone
	OLD_FILES+=usr/sbin/named-compilezone
	OLD_FILES+=usr/sbin/named-journalprint
	OLD_FILES+=usr/sbin/named.reconfig
	OLD_FILES+=usr/sbin/named.reload
	OLD_FILES+=usr/sbin/nsec3hash
	OLD_FILES+=usr/sbin/rndc
	OLD_FILES+=usr/sbin/rndc-confgen
	OLD_DIRS+=usr/share/doc/bind9
	OLD_FILES+=usr/share/doc/bind9/CHANGES
	OLD_FILES+=usr/share/doc/bind9/COPYRIGHT
	OLD_FILES+=usr/share/doc/bind9/FAQ
	OLD_FILES+=usr/share/doc/bind9/HISTORY
	OLD_FILES+=usr/share/doc/bind9/README
	OLD_DIRS+=usr/share/doc/bind9/arm
	OLD_FILES+=usr/share/doc/bind9/arm/Bv9ARM.ch01.html
	OLD_FILES+=usr/share/doc/bind9/arm/Bv9ARM.ch02.html
	OLD_FILES+=usr/share/doc/bind9/arm/Bv9ARM.ch03.html
	OLD_FILES+=usr/share/doc/bind9/arm/Bv9ARM.ch04.html
	OLD_FILES+=usr/share/doc/bind9/arm/Bv9ARM.ch05.html
	OLD_FILES+=usr/share/doc/bind9/arm/Bv9ARM.ch06.html
	OLD_FILES+=usr/share/doc/bind9/arm/Bv9ARM.ch07.html
	OLD_FILES+=usr/share/doc/bind9/arm/Bv9ARM.ch08.html
	OLD_FILES+=usr/share/doc/bind9/arm/Bv9ARM.ch09.html
	OLD_FILES+=usr/share/doc/bind9/arm/Bv9ARM.ch10.html
	OLD_FILES+=usr/share/doc/bind9/arm/Bv9ARM.html
	OLD_FILES+=usr/share/doc/bind9/arm/Bv9ARM.pdf
	OLD_FILES+=usr/share/doc/bind9/arm/man.arpaname.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.ddns-confgen.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.dig.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.dnssec-dsfromkey.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.dnssec-keyfromlabel.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.dnssec-keygen.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.dnssec-revoke.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.dnssec-settime.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.dnssec-signzone.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.dnssec-verify.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.genrandom.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.host.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.isc-hmac-fixup.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.named-checkconf.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.named-checkzone.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.named-journalprint.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.named.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.nsec3hash.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.nsupdate.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.rndc-confgen.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.rndc.conf.html
	OLD_FILES+=usr/share/doc/bind9/arm/man.rndc.html
	OLD_DIRS+=usr/share/doc/bind9/misc
	OLD_FILES+=usr/share/doc/bind9/misc/dnssec
	OLD_FILES+=usr/share/doc/bind9/misc/format-options.pl
	OLD_FILES+=usr/share/doc/bind9/misc/ipv6
	OLD_FILES+=usr/share/doc/bind9/misc/migration
	OLD_FILES+=usr/share/doc/bind9/misc/migration-4to9
	OLD_FILES+=usr/share/doc/bind9/misc/options
	OLD_FILES+=usr/share/doc/bind9/misc/rfc-compliance
	OLD_FILES+=usr/share/doc/bind9/misc/roadmap
	OLD_FILES+=usr/share/doc/bind9/misc/sdb
	OLD_FILES+=usr/share/doc/bind9/misc/sort-options.pl
	OLD_FILES+=usr/share/man/man1/arpaname.1.gz
	OLD_FILES+=usr/share/man/man1/dig.1.gz
	OLD_FILES+=usr/share/man/man1/nslookup.1.gz
	OLD_FILES+=usr/share/man/man1/nsupdate.1.gz
	OLD_FILES+=usr/share/man/man3/lwres.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_addr_parse.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer_add.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer_back.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer_clear.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer_first.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer_forward.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer_getmem.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer_getuint16.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer_getuint32.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer_getuint8.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer_init.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer_invalidate.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer_putmem.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer_putuint16.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer_putuint32.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer_putuint8.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_buffer_subtract.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_conf_clear.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_conf_get.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_conf_init.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_conf_parse.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_conf_print.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_config.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_context.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_context_allocmem.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_context_create.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_context_destroy.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_context_freemem.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_context_initserial.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_context_nextserial.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_context_sendrecv.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_endhostent.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_endhostent_r.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_freeaddrinfo.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_freehostent.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gabn.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gabnrequest_free.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gabnrequest_parse.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gabnrequest_render.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gabnresponse_free.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gabnresponse_parse.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gabnresponse_render.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gai_strerror.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_getaddrinfo.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_getaddrsbyname.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gethostbyaddr.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gethostbyaddr_r.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gethostbyname.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gethostbyname2.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gethostbyname_r.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gethostent.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gethostent_r.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_getipnode.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_getipnodebyaddr.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_getipnodebyname.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_getnamebyaddr.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_getnameinfo.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_getrrsetbyname.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gnba.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gnbarequest_free.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gnbarequest_parse.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gnbarequest_render.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gnbaresponse_free.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gnbaresponse_parse.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_gnbaresponse_render.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_herror.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_hstrerror.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_inetntop.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_lwpacket_parseheader.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_lwpacket_renderheader.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_net_ntop.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_noop.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_nooprequest_free.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_nooprequest_parse.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_nooprequest_render.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_noopresponse_free.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_noopresponse_parse.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_noopresponse_render.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_packet.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_resutil.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_sethostent.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_sethostent_r.3.gz
	OLD_FILES+=usr/share/man/man3/lwres_string_parse.3.gz
	OLD_FILES+=usr/share/man/man5/named.conf.5.gz
	OLD_FILES+=usr/share/man/man5/rndc.conf.5.gz
	OLD_FILES+=usr/share/man/man8/ddns-confgen.8.gz
	OLD_FILES+=usr/share/man/man8/dnssec-dsfromkey.8.gz
	OLD_FILES+=usr/share/man/man8/dnssec-keyfromlabel.8.gz
	OLD_FILES+=usr/share/man/man8/dnssec-keygen.8.gz
	OLD_FILES+=usr/share/man/man8/dnssec-revoke.8.gz
	OLD_FILES+=usr/share/man/man8/dnssec-settime.8.gz
	OLD_FILES+=usr/share/man/man8/dnssec-signzone.8.gz
	OLD_FILES+=usr/share/man/man8/dnssec-verify.8.gz
	OLD_FILES+=usr/share/man/man8/genrandom.8.gz
	OLD_FILES+=usr/share/man/man8/isc-hmac-fixup.8.gz
	OLD_FILES+=usr/share/man/man8/lwresd.8.gz
	OLD_FILES+=usr/share/man/man8/named-checkconf.8.gz
	OLD_FILES+=usr/share/man/man8/named-checkzone.8.gz
	OLD_FILES+=usr/share/man/man8/named-compilezone.8.gz
	OLD_FILES+=usr/share/man/man8/named-journalprint.8.gz
	OLD_FILES+=usr/share/man/man8/named.8.gz
	OLD_FILES+=usr/share/man/man8/named.reconfig.8.gz
	OLD_FILES+=usr/share/man/man8/named.reload.8.gz
	OLD_FILES+=usr/share/man/man8/nsec3hash.8.gz
	OLD_FILES+=usr/share/man/man8/rndc-confgen.8.gz
	OLD_FILES+=usr/share/man/man8/rndc.8.gz
	OLD_DIRS+=var/named/dev
	OLD_DIRS+=var/named/etc
	OLD_DIRS+=var/named/etc/namedb
	OLD_FILES+=var/named/etc/namedb/PROTO.localhost-v6.rev
	OLD_FILES+=var/named/etc/namedb/PROTO.localhost.rev
	OLD_DIRS+=var/named/etc/namedb/dynamic
	OLD_FILES+=var/named/etc/namedb/make-localhost
	OLD_DIRS+=var/named/etc/namedb/master
	OLD_FILES+=var/named/etc/namedb/master/empty.db
	OLD_FILES+=var/named/etc/namedb/master/localhost-forward.db
	OLD_FILES+=var/named/etc/namedb/master/localhost-reverse.db
	#OLD_FILES+=var/named/etc/namedb/named.conf # intentionally left out
	OLD_FILES+=var/named/etc/namedb/named.root
	OLD_DIRS+=var/named/etc/namedb/working
	OLD_DIRS+=var/named/etc/namedb/slave
	OLD_DIRS+=var/named/var
	OLD_DIRS+=var/named/var/dump
	OLD_DIRS+=var/named/var/log
	OLD_DIRS+=var/named/var/run
	OLD_DIRS+=var/named/var/run/named
	OLD_DIRS+=var/named/var/stats
	OLD_DIRS+=var/run/named
	# 20130923: example moved
	OLD_FILES+=usr/share/examples/bsdconfig/browse_packages.sh
	# 20130908: libssh becomes private
	OLD_FILES+=usr/lib/libssh.a
	OLD_FILES+=usr/lib/libssh.so
	OLD_LIBS+=usr/lib/libssh.so.5
	OLD_FILES+=usr/lib/libssh_p.a
	OLD_FILES+=usr/lib32/libssh.a
	OLD_FILES+=usr/lib32/libssh.so
	OLD_LIBS+=usr/lib32/libssh.so.5
	OLD_FILES+=usr/lib32/libssh_p.a
	# 20130903: gnupatch is no more
	OLD_FILES+=usr/bin/gnupatch
	OLD_FILES+=usr/share/man/man1/gnupatch.1.gz
	# 20130829: bsdpatch is patch unconditionally
	OLD_FILES+=usr/bin/bsdpatch
	OLD_FILES+=usr/share/man/man1/bsdpatch.1.gz
	# 20130822: bind 9.9.3-P2 import
	OLD_LIBS+=usr/lib/liblwres.so.80
	# 20130814: vm_page_busy(9)
	OLD_FILES+=usr/share/man/man9/vm_page_flash.9.gz
	OLD_FILES+=usr/share/man/man9/vm_page_io.9.gz
	OLD_FILES+=usr/share/man/man9/vm_page_io_finish.9.gz
	OLD_FILES+=usr/share/man/man9/vm_page_io_start.9.gz
	OLD_FILES+=usr/share/man/man9/vm_page_wakeup.9.gz
	# 20130710: libkvm version bump
	OLD_LIBS+=lib/libkvm.so.5
	OLD_LIBS+=usr/lib32/libkvm.so.5
	# 20130623: dialog update from 1.1 to 1.2
	OLD_LIBS+=usr/lib/libdialog.so.7
	OLD_LIBS+=usr/lib32/libdialog.so.7
	# 20130616: vfs_mount.9 removed
	OLD_FILES+=usr/share/man/man9/vfs_mount.9.gz
	# 20130614: remove CVS from base
	OLD_FILES+=usr/bin/cvs
	OLD_FILES+=usr/bin/cvsbug
	OLD_FILES+=usr/share/doc/psd/28.cvs/paper.ascii.gz
	OLD_FILES+=usr/share/doc/psd/28.cvs/paper.ps.gz
	OLD_DIRS+=usr/share/doc/psd/28.cvs
	OLD_FILES+=usr/share/examples/cvs/contrib/README
	OLD_FILES+=usr/share/examples/cvs/contrib/clmerge
	OLD_FILES+=usr/share/examples/cvs/contrib/cln_hist
	OLD_FILES+=usr/share/examples/cvs/contrib/commit_prep
	OLD_FILES+=usr/share/examples/cvs/contrib/cvs2vendor
	OLD_FILES+=usr/share/examples/cvs/contrib/cvs_acls
	OLD_FILES+=usr/share/examples/cvs/contrib/cvscheck
	OLD_FILES+=usr/share/examples/cvs/contrib/cvscheck.man
	OLD_FILES+=usr/share/examples/cvs/contrib/cvshelp.man
	OLD_FILES+=usr/share/examples/cvs/contrib/descend.man
	OLD_FILES+=usr/share/examples/cvs/contrib/easy-import
	OLD_FILES+=usr/share/examples/cvs/contrib/intro.doc
	OLD_FILES+=usr/share/examples/cvs/contrib/log
	OLD_FILES+=usr/share/examples/cvs/contrib/log_accum
	OLD_FILES+=usr/share/examples/cvs/contrib/mfpipe
	OLD_FILES+=usr/share/examples/cvs/contrib/rcs-to-cvs
	OLD_FILES+=usr/share/examples/cvs/contrib/rcs2log
	OLD_FILES+=usr/share/examples/cvs/contrib/rcslock
	OLD_FILES+=usr/share/examples/cvs/contrib/sccs2rcs
	OLD_DIRS+=usr/share/examples/cvs/contrib
	OLD_DIRS+=usr/share/examples/cvs
	OLD_FILES+=usr/share/info/cvs.info.gz
	OLD_FILES+=usr/share/info/cvsclient.info.gz
	OLD_FILES+=usr/share/man/man1/cvs.1.gz
	OLD_FILES+=usr/share/man/man5/cvs.5.gz
	OLD_FILES+=usr/share/man/man8/cvsbug.8.gz
	# 20130607: WITH_DEBUG_FILES added
	OLD_FILES+=lib/libufs.so.6.symbols
	OLD_FILES+=usr/lib32/libufs.so.6.symbols
	# 20130417: nfs fha moved from nfsserver to nfs
	OLD_FILES+=usr/include/nfsserver/nfs_fha.h
	# 20130411: new clang import which bumps version from 3.2 to 3.3.
	OLD_FILES+=usr/include/clang/3.2/__wmmintrin_aes.h
	OLD_FILES+=usr/include/clang/3.2/__wmmintrin_pclmul.h
	OLD_FILES+=usr/include/clang/3.2/altivec.h
	OLD_FILES+=usr/include/clang/3.2/ammintrin.h
	OLD_FILES+=usr/include/clang/3.2/avx2intrin.h
	OLD_FILES+=usr/include/clang/3.2/avxintrin.h
	OLD_FILES+=usr/include/clang/3.2/bmi2intrin.h
	OLD_FILES+=usr/include/clang/3.2/bmiintrin.h
	OLD_FILES+=usr/include/clang/3.2/cpuid.h
	OLD_FILES+=usr/include/clang/3.2/emmintrin.h
	OLD_FILES+=usr/include/clang/3.2/f16cintrin.h
	OLD_FILES+=usr/include/clang/3.2/fma4intrin.h
	OLD_FILES+=usr/include/clang/3.2/fmaintrin.h
	OLD_FILES+=usr/include/clang/3.2/immintrin.h
	OLD_FILES+=usr/include/clang/3.2/lzcntintrin.h
	OLD_FILES+=usr/include/clang/3.2/mm3dnow.h
	OLD_FILES+=usr/include/clang/3.2/mm_malloc.h
	OLD_FILES+=usr/include/clang/3.2/mmintrin.h
	OLD_FILES+=usr/include/clang/3.2/module.map
	OLD_FILES+=usr/include/clang/3.2/nmmintrin.h
	OLD_FILES+=usr/include/clang/3.2/pmmintrin.h
	OLD_FILES+=usr/include/clang/3.2/popcntintrin.h
	OLD_FILES+=usr/include/clang/3.2/rtmintrin.h
	OLD_FILES+=usr/include/clang/3.2/smmintrin.h
	OLD_FILES+=usr/include/clang/3.2/tmmintrin.h
	OLD_FILES+=usr/include/clang/3.2/wmmintrin.h
	OLD_FILES+=usr/include/clang/3.2/x86intrin.h
	OLD_FILES+=usr/include/clang/3.2/xmmintrin.h
	OLD_FILES+=usr/include/clang/3.2/xopintrin.h
	OLD_DIRS+=usr/include/clang/3.2
	# 20130404: legacy ATA stack removed
	OLD_FILES+=etc/periodic/daily/405.status-ata-raid
	OLD_FILES+=rescue/atacontrol
	OLD_FILES+=sbin/atacontrol
	OLD_FILES+=usr/share/man/man8/atacontrol.8.gz
	OLD_FILES+=usr/share/man/man4/atapicam.4.gz
	OLD_FILES+=usr/share/man/man4/ataraid.4.gz
	OLD_FILES+=usr/sbin/burncd
	OLD_FILES+=usr/share/man/man8/burncd.8.gz
	# 20130316: vinum.4 removed
	OLD_FILES+=usr/share/man/man4/vinum.4.gz
	# 20130312: fortunes-o removed
	OLD_FILES+=usr/share/games/fortune/fortunes-o
	OLD_FILES+=usr/share/games/fortune/fortunes-o.dat
	# 20130311: Ports are no more available via cvsup
	OLD_FILES+=usr/share/examples/cvsup/ports-supfile
	OLD_FILES+=usr/share/examples/cvsup/refuse
	OLD_FILES+=usr/share/examples/cvsup/refuse.README
	# 20130309: NWFS and NCP supports removed
	OLD_FILES+=usr/bin/ncplist
	OLD_FILES+=usr/bin/ncplogin
	OLD_FILES+=usr/bin/ncplogout
	OLD_FILES+=usr/include/fs/nwfs/nwfs.h
	OLD_FILES+=usr/include/fs/nwfs/nwfs_mount.h
	OLD_FILES+=usr/include/fs/nwfs/nwfs_node.h
	OLD_FILES+=usr/include/fs/nwfs/nwfs_subr.h
	OLD_DIRS+=usr/include/fs/nwfs
	OLD_FILES+=usr/include/netncp/ncp.h
	OLD_FILES+=usr/include/netncp/ncp_cfg.h
	OLD_FILES+=usr/include/netncp/ncp_conn.h
	OLD_FILES+=usr/include/netncp/ncp_file.h
	OLD_FILES+=usr/include/netncp/ncp_lib.h
	OLD_FILES+=usr/include/netncp/ncp_ncp.h
	OLD_FILES+=usr/include/netncp/ncp_nls.h
	OLD_FILES+=usr/include/netncp/ncp_rcfile.h
	OLD_FILES+=usr/include/netncp/ncp_rq.h
	OLD_FILES+=usr/include/netncp/ncp_sock.h
	OLD_FILES+=usr/include/netncp/ncp_subr.h
	OLD_FILES+=usr/include/netncp/ncp_user.h
	OLD_FILES+=usr/include/netncp/ncpio.h
	OLD_FILES+=usr/include/netncp/nwerror.h
	OLD_DIRS+=usr/include/netncp
	OLD_FILES+=usr/lib/libncp.a
	OLD_FILES+=usr/lib/libncp.so
	OLD_LIBS+=usr/lib/libncp.so.4
	OLD_FILES+=usr/lib/libncp_p.a
	OLD_FILES+=usr/lib32/libncp.a
	OLD_FILES+=usr/lib32/libncp.so
	OLD_LIBS+=usr/lib32/libncp.so.4
	OLD_FILES+=usr/lib32/libncp_p.a
	OLD_FILES+=usr/sbin/mount_nwfs
	OLD_FILES+=usr/share/examples/nwclient/dot.nwfsrc
	OLD_FILES+=usr/share/examples/nwclient/nwfs.sh.sample
	OLD_DIRS+=usr/share/examples/nwclient
	OLD_FILES+=usr/share/man/man1/ncplist.1.gz
	OLD_FILES+=usr/share/man/man1/ncplogin.1.gz
	OLD_FILES+=usr/share/man/man1/ncplogout.1.gz
	OLD_FILES+=usr/share/man/man8/mount_nwfs.8.gz
	# 20130302: NTFS support removed
	OLD_FILES+=rescue/mount_ntfs
	OLD_FILES+=sbin/mount_ntfs
	OLD_FILES+=usr/include/fs/ntfs/ntfs.h
	OLD_FILES+=usr/include/fs/ntfs/ntfs_compr.h
	OLD_FILES+=usr/include/fs/ntfs/ntfs_ihash.h
	OLD_FILES+=usr/include/fs/ntfs/ntfs_inode.h
	OLD_FILES+=usr/include/fs/ntfs/ntfs_subr.h
	OLD_FILES+=usr/include/fs/ntfs/ntfs_vfsops.h
	OLD_FILES+=usr/include/fs/ntfs/ntfsmount.h
	OLD_DIRS+=usr/include/fs/ntfs
	OLD_FILES+=usr/share/man/man8/mount_ntfs.8.gz
	# 20130302: PORTALFS support removed
	OLD_FILES+=usr/include/fs/portalfs/portal.h
	OLD_DIRS+=usr/include/fs/portalfs
	OLD_FILES+=usr/sbin/mount_portalfs
	OLD_FILES+=usr/share/examples/portal/README
	OLD_FILES+=usr/share/examples/portal/portal.conf
	OLD_DIRS+=usr/share/examples/portal
	OLD_FILES+=usr/share/man/man8/mount_portalfs.8.gz
	# 20130302: CODAFS support removed
	OLD_FILES+=usr/share/man/man4/coda.4.gz
	# 20130302: XFS support removed
	OLD_FILES+=usr/share/man/man5/xfs.5.gz
	# 20130302: Capsicum overhaul
	OLD_FILES+=usr/share/man/man2/cap_getrights.2.gz
	OLD_FILES+=usr/share/man/man2/cap_new.2.gz
	# 20130213: OpenSSL 1.0.1e import
	OLD_FILES+=usr/share/openssl/man/man3/EVP_PKEY_verifyrecover.3.gz
	OLD_FILES+=usr/share/openssl/man/man3/EVP_PKEY_verifyrecover_init.3.gz
	# 20130116: removed long unused directories for .1aout section manpages
	OLD_FILES+=usr/share/man/en.ISO8859-1/man1aout
	OLD_FILES+=usr/share/man/en.UTF-8/man1aout
	OLD_DIRS+=usr/share/man/man1aout
	OLD_DIRS+=usr/share/man/cat1aout
	OLD_DIRS+=usr/share/man/en.ISO8859-1/cat1aout
	OLD_DIRS+=usr/share/man/en.UTF-8/cat1aout
	# 20130103: gnats-supfile removed
	OLD_FILES+=usr/share/examples/cvsup/gnats-supfile
	# 20121230: libdisk removed
	OLD_FILES+=usr/share/man/man3/libdisk.3.gz usr/include/libdisk.h
	OLD_FILES+=usr/lib/libdisk.a usr/lib32/libdisk.a
	# 20121230: remove wrongly created directories for auditdistd
	OLD_DIRS+=var/dist
	OLD_DIRS+=var/remote
	# 20121022: remove harp, hfa and idt man page
	OLD_FILES+=usr/share/man/man4/harp.4.gz
	OLD_FILES+=usr/share/man/man4/hfa.4.gz
	OLD_FILES+=usr/share/man/man4/idt.4.gz
	OLD_FILES+=usr/share/man/man4/if_idt.4.gz
	# 20121022: VFS_LOCK_GIANT elimination
	OLD_FILES+=usr/share/man/man9/VFS_LOCK_GIANT.9.gz
	OLD_FILES+=usr/share/man/man9/VFS_UNLOCK_GIANT.9.gz
	# 20121004: remove incomplete unwind.h
	OLD_FILES+=usr/include/clang/3.2/unwind.h
	# 20120910: NetBSD compat shims removed
	OLD_FILES+=usr/include/cam/scsi/scsi_low_pisa.h
	OLD_FILES+=usr/include/sys/device_port.h
	# 20120909: doc and www supfiles removed
	OLD_FILES+=usr/share/examples/cvsup/doc-supfile
	OLD_FILES+=usr/share/examples/cvsup/www-supfile
	# 20120908: pf cleanup
	OLD_FILES+=usr/include/net/if_pflow.h
	# 20120816: new clang import which bumps version from 3.1 to 3.2
	OLD_FILES+=usr/bin/llvm-ld
	OLD_FILES+=usr/bin/llvm-stub
	OLD_FILES+=usr/include/clang/3.1/altivec.h
	OLD_FILES+=usr/include/clang/3.1/avx2intrin.h
	OLD_FILES+=usr/include/clang/3.1/avxintrin.h
	OLD_FILES+=usr/include/clang/3.1/bmi2intrin.h
	OLD_FILES+=usr/include/clang/3.1/bmiintrin.h
	OLD_FILES+=usr/include/clang/3.1/cpuid.h
	OLD_FILES+=usr/include/clang/3.1/emmintrin.h
	OLD_FILES+=usr/include/clang/3.1/fma4intrin.h
	OLD_FILES+=usr/include/clang/3.1/immintrin.h
	OLD_FILES+=usr/include/clang/3.1/lzcntintrin.h
	OLD_FILES+=usr/include/clang/3.1/mm3dnow.h
	OLD_FILES+=usr/include/clang/3.1/mm_malloc.h
	OLD_FILES+=usr/include/clang/3.1/mmintrin.h
	OLD_FILES+=usr/include/clang/3.1/module.map
	OLD_FILES+=usr/include/clang/3.1/nmmintrin.h
	OLD_FILES+=usr/include/clang/3.1/pmmintrin.h
	OLD_FILES+=usr/include/clang/3.1/popcntintrin.h
	OLD_FILES+=usr/include/clang/3.1/smmintrin.h
	OLD_FILES+=usr/include/clang/3.1/tmmintrin.h
	OLD_FILES+=usr/include/clang/3.1/unwind.h
	OLD_FILES+=usr/include/clang/3.1/wmmintrin.h
	OLD_FILES+=usr/include/clang/3.1/x86intrin.h
	OLD_FILES+=usr/include/clang/3.1/xmmintrin.h
	OLD_DIRS+=usr/include/clang/3.1
	OLD_FILES+=usr/share/man/man1/llvm-ld.1.gz
	# 20120712: OpenSSL 1.0.1c import
	OLD_LIBS+=lib/libcrypto.so.6
	OLD_LIBS+=usr/lib/libssl.so.6
	OLD_LIBS+=usr/lib32/libcrypto.so.6
	OLD_LIBS+=usr/lib32/libssl.so.6
	OLD_FILES+=usr/include/openssl/aes_locl.h
	OLD_FILES+=usr/include/openssl/bio_lcl.h
	OLD_FILES+=usr/include/openssl/e_os.h
	OLD_FILES+=usr/include/openssl/fips.h
	OLD_FILES+=usr/include/openssl/fips_rand.h
	OLD_FILES+=usr/include/openssl/pq_compat.h
	OLD_FILES+=usr/include/openssl/tmdiff.h
	OLD_FILES+=usr/include/openssl/ui_locl.h
	OLD_FILES+=usr/share/openssl/man/man3/CRYPTO_set_id_callback.3.gz
	# 20120621: remove old man page
	OLD_FILES+=usr/share/man/man8/vnconfig.8.gz
	# 20120619: TOE support updated
	OLD_FILES+=usr/include/netinet/toedev.h
	# 20120613: auth.conf removed
	OLD_FILES+=etc/auth.conf
	OLD_FILES+=usr/share/examples/etc/auth.conf
	OLD_FILES+=usr/share/man/man3/auth.3.gz
	OLD_FILES+=usr/share/man/man3/auth_getval.3.gz
	OLD_FILES+=usr/share/man/man5/auth.conf.5.gz
	# 20120530: kde pam lives now in ports
	OLD_FILES+=etc/pam.d/kde
	# 20120521: byacc import
	OLD_FILES+=usr/bin/yyfix
	OLD_FILES+=usr/share/man/man1/yyfix.1.gz
	# 20120505: new clang import installed a redundant internal header
	OLD_FILES+=usr/include/clang/3.1/stdalign.h
	# 20120428: MD2 removed from libmd
	OLD_LIBS+=lib/libmd.so.5
	OLD_FILES+=usr/include/md2.h
	OLD_LIBS+=usr/lib32/libmd.so.5
	OLD_FILES+=usr/share/man/man3/MD2Data.3.gz
	OLD_FILES+=usr/share/man/man3/MD2End.3.gz
	OLD_FILES+=usr/share/man/man3/MD2File.3.gz
	OLD_FILES+=usr/share/man/man3/MD2FileChunk.3.gz
	OLD_FILES+=usr/share/man/man3/MD2Final.3.gz
	OLD_FILES+=usr/share/man/man3/MD2Init.3.gz
	OLD_FILES+=usr/share/man/man3/MD2Update.3.gz
	OLD_FILES+=usr/share/man/man3/md2.3.gz
	# 20120425: libusb version bump (r234684)
	OLD_LIBS+=usr/lib/libusb.so.2
	OLD_LIBS+=usr/lib32/libusb.so.2
	OLD_FILES+=usr/share/man/man3/libsub_get_active_config_descriptor.3.gz
	# 20120415: new clang import which bumps version from 3.0 to 3.1
	OLD_FILES+=usr/include/clang/3.0/altivec.h
	OLD_FILES+=usr/include/clang/3.0/avxintrin.h
	OLD_FILES+=usr/include/clang/3.0/emmintrin.h
	OLD_FILES+=usr/include/clang/3.0/immintrin.h
	OLD_FILES+=usr/include/clang/3.0/mm3dnow.h
	OLD_FILES+=usr/include/clang/3.0/mm_malloc.h
	OLD_FILES+=usr/include/clang/3.0/mmintrin.h
	OLD_FILES+=usr/include/clang/3.0/nmmintrin.h
	OLD_FILES+=usr/include/clang/3.0/pmmintrin.h
	OLD_FILES+=usr/include/clang/3.0/smmintrin.h
	OLD_FILES+=usr/include/clang/3.0/tmmintrin.h
	OLD_FILES+=usr/include/clang/3.0/wmmintrin.h
	OLD_FILES+=usr/include/clang/3.0/x86intrin.h
	OLD_FILES+=usr/include/clang/3.0/xmmintrin.h
	OLD_DIRS+=usr/include/clang/3.0
	# 20120412: BIND 9.8.1 release notes removed
	OLD_FILES+=usr/share/doc/bind9/RELEASE-NOTES-BIND-9.8.1.pdf
	OLD_FILES+=usr/share/doc/bind9/RELEASE-NOTES-BIND-9.8.1.txt
	OLD_FILES+=usr/share/doc/bind9/RELEASE-NOTES-BIND-9.8.1.html
	OLD_FILES+=usr/share/doc/bind9/release-notes.css
	# 20120330: legacy(4) moved to x86
	OLD_FILES+=usr/include/machine/legacyvar.h
	# 20120324: MPI headers updated
	OLD_FILES+=usr/include/dev/mpt/mpilib/mpi_inb.h
	# 20120322: hwpmc_mips24k.h removed
	OLD_FILES+=usr/include/dev/hwpmc/hwpmc_mips24k.h
	# 20120322: Update heimdal to 1.5.1.
	OLD_FILES+=usr/include/krb5-v4compat.h \
	usr/include/krb_err.h \
	usr/include/hdb-private.h \
	usr/share/man/man3/krb5_addresses.3.gz \
	usr/share/man/man3/krb5_cc_cursor.3.gz \
	usr/share/man/man3/krb5_cc_ops.3.gz \
	usr/share/man/man3/krb5_config.3.gz \
	usr/share/man/man3/krb5_config_get_int_default.3.gz \
	usr/share/man/man3/krb5_context.3.gz \
	usr/share/man/man3/krb5_data.3.gz \
	usr/share/man/man3/krb5_err.3.gz \
	usr/share/man/man3/krb5_errx.3.gz \
	usr/share/man/man3/krb5_keyblock.3.gz \
	usr/share/man/man3/krb5_keytab_entry.3.gz \
	usr/share/man/man3/krb5_kt_cursor.3.gz \
	usr/share/man/man3/krb5_kt_ops.3.gz \
	usr/share/man/man3/krb5_set_warn_dest.3.gz \
	usr/share/man/man3/krb5_verr.3.gz \
	usr/share/man/man3/krb5_verrx.3.gz \
	usr/share/man/man3/krb5_vwarnx.3.gz \
	usr/share/man/man3/krb5_warn.3.gz \
	usr/share/man/man3/krb5_warnx.3.gz
	OLD_LIBS+=usr/lib/libasn1.so.10 \
	usr/lib/libhdb.so.10 \
	usr/lib/libheimntlm.so.10 \
	usr/lib/libhx509.so.10 \
	usr/lib/libkadm5clnt.so.10 \
	usr/lib/libkadm5srv.so.10 \
	usr/lib/libkafs5.so.10 \
	usr/lib/libkrb5.so.10 \
	usr/lib/libroken.so.10 \
	usr/lib32/libasn1.so.10 \
	usr/lib32/libhdb.so.10 \
	usr/lib32/libheimntlm.so.10 \
	usr/lib32/libhx509.so.10 \
	usr/lib32/libkadm5clnt.so.10 \
	usr/lib32/libkadm5srv.so.10 \
	usr/lib32/libkafs5.so.10 \
	usr/lib32/libkrb5.so.10 \
	usr/lib32/libroken.so.10
	# 20120309: Remove fifofs header files.
	OLD_FILES+=usr/include/fs/fifofs/fifo.h
	OLD_DIRS+=usr/include/fs/fifofs
	# 20120304: xlocale cleanup
	OLD_FILES+=usr/include/_xlocale_ctype.h
	# 20120225: libarchive 3.0.3
	OLD_FILES+=usr/share/man/man3/archive_read_data_into_buffer.3.gz \
	usr/share/man/man3/archive_read_support_compression_all.3.gz \
	usr/share/man/man3/archive_read_support_compression_bzip2.3.gz \
	usr/share/man/man3/archive_read_support_compression_compress.3.gz \
	usr/share/man/man3/archive_read_support_compression_gzip.3.gz \
	usr/share/man/man3/archive_read_support_compression_lzma.3.gz \
	usr/share/man/man3/archive_read_support_compression_none.3.gz \
	usr/share/man/man3/archive_read_support_compression_program.3.gz \
	usr/share/man/man3/archive_read_support_compression_program_signature.3.gz \
	usr/share/man/man3/archive_read_support_compression_xz.3.gz \
	usr/share/man/man3/archive_write_set_callbacks.3.gz \
	usr/share/man/man3/archive_write_set_compression_bzip2.3.gz \
	usr/share/man/man3/archive_write_set_compression_compress.3.gz \
	usr/share/man/man3/archive_write_set_compression_gzip.3.gz \
	usr/share/man/man3/archive_write_set_compression_none.3.gz \
	usr/share/man/man3/archive_write_set_compression_program.3.gz
	OLD_LIBS+=usr/lib/libarchive.so.5
	OLD_LIBS+=usr/lib32/libarchive.so.5
	# 20120113: removal of wtmpcvt(1)
	OLD_FILES+=usr/bin/wtmpcvt
	OLD_FILES+=usr/share/man/man1/wtmpcvt.1.gz
	# 20111214: eventtimers(7) moved to eventtimers(4)
	OLD_FILES+=usr/share/man/man7/eventtimers.7.gz
	# 20111125: amd(4) removed
	OLD_FILES+=usr/share/man/man4/amd.4.gz
	# 20111125: libodialog removed
	OLD_FILES+=usr/lib/libodialog.a
	OLD_FILES+=usr/lib/libodialog.so
	OLD_LIBS+=usr/lib/libodialog.so.7
	OLD_FILES+=usr/lib/libodialog_p.a
	OLD_FILES+=usr/lib32/libodialog.a
	OLD_FILES+=usr/lib32/libodialog.so
	OLD_LIBS+=usr/lib32/libodialog.so.7
	OLD_FILES+=usr/lib32/libodialog_p.a
	# 20110930: sysinstall removed
	OLD_FILES+=usr/sbin/sysinstall
	OLD_FILES+=usr/share/man/man8/sysinstall.8.gz
	OLD_FILES+=usr/lib/libftpio.a
	OLD_FILES+=usr/lib/libftpio.so
	OLD_LIBS+=usr/lib/libftpio.so.8
	OLD_FILES+=usr/lib/libftpio_p.a
	OLD_FILES+=usr/lib32/libftpio.a
	OLD_FILES+=usr/lib32/libftpio.so
	OLD_LIBS+=usr/lib32/libftpio.so.8
	OLD_FILES+=usr/lib32/libftpio_p.a
	OLD_FILES+=usr/include/ftpio.h
	OLD_FILES+=usr/share/man/man3/ftpio.3.gz
	# 20110915: rename congestion control manpages
	OLD_FILES+=usr/share/man/man9/cc.9.gz
	# 20110831: atomic page flags operations
	OLD_FILES+=usr/share/man/man9/vm_page_flag.9.gz
	OLD_FILES+=usr/share/man/man9/vm_page_flag_clear.9.gz
	OLD_FILES+=usr/share/man/man9/vm_page_flag_set.9.gz
	# 20110828: library version bump for 9.0
	OLD_LIBS+=lib/libcam.so.5
	OLD_LIBS+=lib/libpcap.so.7
	OLD_LIBS+=lib/libufs.so.5
	OLD_LIBS+=usr/lib/libbsnmp.so.5
	OLD_LIBS+=usr/lib/libdwarf.so.2
	OLD_LIBS+=usr/lib/libopie.so.6
	OLD_LIBS+=usr/lib/librtld_db.so.1
	OLD_LIBS+=usr/lib/libtacplus.so.4
	OLD_LIBS+=usr/lib32/libcam.so.5
	OLD_LIBS+=usr/lib32/libpcap.so.7
	OLD_LIBS+=usr/lib32/libufs.so.5
	OLD_LIBS+=usr/lib32/libbsnmp.so.5
	OLD_LIBS+=usr/lib32/libdwarf.so.2
	OLD_LIBS+=usr/lib32/libopie.so.6
	OLD_LIBS+=usr/lib32/librtld_db.so.1
	OLD_LIBS+=usr/lib32/libtacplus.so.4
	# 20110817: no more acd.4, ad.4, afd.4 and ast.4
	OLD_FILES+=usr/share/man/man4/acd.4.gz
	OLD_FILES+=usr/share/man/man4/ad.4.gz
	OLD_FILES+=usr/share/man/man4/afd.4.gz
	OLD_FILES+=usr/share/man/man4/ast.4.gz
	# 20110718: no longer useful in the age of rc.d
	OLD_FILES+=usr/sbin/named.reconfig
	OLD_FILES+=usr/sbin/named.reload
	OLD_FILES+=usr/share/man/man8/named.reconfig.8.gz
	OLD_FILES+=usr/share/man/man8/named.reload.8.gz
	# 20110716: bind 9.8.0 import
	OLD_LIBS+=usr/lib/liblwres.so.50
	OLD_FILES+=usr/share/doc/bind9/KNOWN-DEFECTS
	OLD_FILES+=usr/share/doc/bind9/NSEC3-NOTES
	OLD_FILES+=usr/share/doc/bind9/README.idnkit
	OLD_FILES+=usr/share/doc/bind9/README.pkcs11
	# 20110709: vm_map_clean.9 -> vm_map_sync.9
	OLD_FILES+=usr/share/man/man9/vm_map_clean.9.gz
	# 20110709: Catch up with removal of these functions.
	OLD_FILES+=usr/share/man/man9/vm_page_copy.9.gz
	OLD_FILES+=usr/share/man/man9/vm_page_protect.9.gz
	OLD_FILES+=usr/share/man/man9/vm_page_zero_fill.9.gz
	# 20110707: script no longer needed by /etc/rc.d/nfsd
	OLD_FILES+=etc/rc.d/nfsserver
	# 20110705: files moved so both NFS clients can share them
	OLD_FILES+=usr/include/nfsclient/krpc.h
	OLD_FILES+=usr/include/nfsclient/nfsdiskless.h
	# 20110705: the switch of default NFS client to the new one
	OLD_FILES+=sbin/mount_newnfs
	OLD_FILES+=usr/share/man/man8/mount_newnfs.8.gz
	OLD_FILES+=usr/include/nfsclient/nfs_kdtrace.h
	# 20110628: calendar.msk removed
	OLD_FILES+=usr/share/calendar/ru_RU.KOI8-R/calendar.msk
	# 20110517: libpkg removed
	OLD_FILES+=usr/include/pkg.h
	OLD_FILES+=usr/lib/libpkg.a
	OLD_FILES+=usr/lib/libpkg.so
	OLD_LIBS+=usr/lib/libpkg.so.0
	OLD_FILES+=usr/lib/libpkg_p.a
	OLD_FILES+=usr/lib32/libpkg.a
	OLD_FILES+=usr/lib32/libpkg.so
	OLD_LIBS+=usr/lib32/libpkg.so.0
	OLD_FILES+=usr/lib32/libpkg_p.a
	# 20110517: libsbuf version bump
	OLD_LIBS+=lib/libsbuf.so.5
	OLD_LIBS+=usr/lib32/libsbuf.so.5
	# 20110502: new clang import which bumps version from 2.9 to 3.0
	OLD_FILES+=usr/include/clang/2.9/emmintrin.h
	OLD_FILES+=usr/include/clang/2.9/mm_malloc.h
	OLD_FILES+=usr/include/clang/2.9/mmintrin.h
	OLD_FILES+=usr/include/clang/2.9/pmmintrin.h
	OLD_FILES+=usr/include/clang/2.9/tmmintrin.h
	OLD_FILES+=usr/include/clang/2.9/xmmintrin.h
	OLD_DIRS+=usr/include/clang/2.9
	# 20110417: removal of Objective-C support
	OLD_FILES+=usr/include/objc/encoding.h
	OLD_FILES+=usr/include/objc/hash.h
	OLD_FILES+=usr/include/objc/NXConstStr.h
	OLD_FILES+=usr/include/objc/objc-api.h
	OLD_FILES+=usr/include/objc/objc-decls.h
	OLD_FILES+=usr/include/objc/objc-list.h
	OLD_FILES+=usr/include/objc/objc.h
	OLD_FILES+=usr/include/objc/Object.h
	OLD_FILES+=usr/include/objc/Protocol.h
	OLD_FILES+=usr/include/objc/runtime.h
	OLD_FILES+=usr/include/objc/sarray.h
	OLD_FILES+=usr/include/objc/thr.h
	OLD_FILES+=usr/include/objc/typedstream.h
	OLD_FILES+=usr/lib/libobjc.a
	OLD_FILES+=usr/lib/libobjc.so
	OLD_FILES+=usr/lib/libobjc_p.a
	OLD_FILES+=usr/libexec/cc1obj
	OLD_LIBS+=usr/lib/libobjc.so.4
	OLD_DIRS+=usr/include/objc
	OLD_FILES+=usr/lib32/libobjc.a
	OLD_FILES+=usr/lib32/libobjc.so
	OLD_FILES+=usr/lib32/libobjc_p.a
	OLD_LIBS+=usr/lib32/libobjc.so.4
	# 20110331: firmware.img created at build time
	OLD_FILES+=usr/share/examples/kld/firmware/fwimage/firmware.img
	# 20110224: sticky.8 -> sticky.7
	OLD_FILES+=usr/share/man/man8/sticky.8.gz
	# 20110220: new clang import which bumps version from 2.8 to 2.9
	OLD_FILES+=usr/include/clang/2.8/emmintrin.h
	OLD_FILES+=usr/include/clang/2.8/mm_malloc.h
	OLD_FILES+=usr/include/clang/2.8/mmintrin.h
	OLD_FILES+=usr/include/clang/2.8/pmmintrin.h
	OLD_FILES+=usr/include/clang/2.8/tmmintrin.h
	OLD_FILES+=usr/include/clang/2.8/xmmintrin.h
	OLD_DIRS+=usr/include/clang/2.8
	# 20110119: netinet/sctp_cc_functions.h removed
	OLD_FILES+=usr/include/netinet/sctp_cc_functions.h
	# 20110119: Remove SYSCTL_X sysctl additions.
	OLD_FILES+=usr/share/man/man9/SYSCTL_XINT.9.gz \
	usr/share/man/man9/SYSCTL_XLONG.9.gz

	# 20110112: Update dialog to new version, rename old libdialog to libodialog,
	# removing associated man pages and header files.
	OLD_FILES+=usr/share/man/man3/draw_shadow.3.gz \
	usr/share/man/man3/draw_box.3.gz usr/share/man/man3/line_edit.3.gz \
	usr/share/man/man3/strheight.3.gz usr/share/man/man3/strwidth.3.gz \
	usr/share/man/man3/dialog_create_rc.3.gz \
	usr/share/man/man3/dialog_yesno.3.gz usr/share/man/man3/dialog_noyes.3.gz \
	usr/share/man/man3/dialog_prgbox.3.gz \
	usr/share/man/man3/dialog_textbox.3.gz usr/share/man/man3/dialog_menu.3.gz \
	usr/share/man/man3/dialog_checklist.3.gz \
	usr/share/man/man3/dialog_radiolist.3.gz \
	usr/share/man/man3/dialog_inputbox.3.gz \
	usr/share/man/man3/dialog_clear_norefresh.3.gz \
	usr/share/man/man3/dialog_clear.3.gz usr/share/man/man3/dialog_update.3.gz \
	usr/share/man/man3/dialog_fselect.3.gz \
	usr/share/man/man3/dialog_notify.3.gz \
	usr/share/man/man3/dialog_mesgbox.3.gz \
	usr/share/man/man3/dialog_gauge.3.gz usr/share/man/man3/init_dialog.3.gz \
	usr/share/man/man3/end_dialog.3.gz usr/share/man/man3/use_helpfile.3.gz \
	usr/share/man/man3/use_helpline.3.gz usr/share/man/man3/get_helpline.3.gz \
	usr/share/man/man3/restore_helpline.3.gz \
	usr/share/man/man3/dialog_msgbox.3.gz \
	usr/share/man/man3/dialog_ftree.3.gz usr/share/man/man3/dialog_tree.3.gz \
	usr/share/examples/dialog/README usr/share/examples/dialog/checklist \
	usr/share/examples/dialog/ftreebox usr/share/examples/dialog/infobox \
	usr/share/examples/dialog/inputbox usr/share/examples/dialog/menubox \
	usr/share/examples/dialog/msgbox usr/share/examples/dialog/prgbox \
	usr/share/examples/dialog/radiolist usr/share/examples/dialog/textbox \
	usr/share/examples/dialog/treebox usr/share/examples/dialog/yesno \
	usr/share/examples/libdialog/Makefile usr/share/examples/libdialog/check1.c\
	usr/share/examples/libdialog/check2.c usr/share/examples/libdialog/check3.c\
	usr/share/examples/libdialog/dselect.c \
	usr/share/examples/libdialog/fselect.c \
	usr/share/examples/libdialog/ftree1.c \
	usr/share/examples/libdialog/ftree1.test \
	usr/share/examples/libdialog/ftree2.c \
	usr/share/examples/libdialog/ftree2.test \
	usr/share/examples/libdialog/gauge.c usr/share/examples/libdialog/input1.c \
	usr/share/examples/libdialog/input2.c usr/share/examples/libdialog/menu1.c \
	usr/share/examples/libdialog/menu2.c usr/share/examples/libdialog/menu3.c \
	usr/share/examples/libdialog/msg.c usr/share/examples/libdialog/prgbox.c \
	usr/share/examples/libdialog/radio1.c usr/share/examples/libdialog/radio2.c\
	usr/share/examples/libdialog/radio3.c usr/share/examples/libdialog/text.c \
	usr/share/examples/libdialog/tree.c usr/share/examples/libdialog/yesno.c
	OLD_DIRS+=usr/share/examples/libdialog usr/share/examples/dialog
	# 20101114: Remove long-obsolete MAKEDEV.8
	OLD_FILES+=usr/share/man/man8/MAKEDEV.8.gz
	# 20101112: vgonel(9) has gone to private API a while ago
	OLD_FILES+=usr/share/man/man9/vgonel.9.gz
	# 20101112: removed gasp.info
	OLD_FILES+=usr/share/info/gasp.info.gz
	# 20101109: machine/mutex.h removed
	OLD_FILES+=usr/include/machine/mutex.h
	# 20101109: headers moved from machine/ to x86/
	.if ${TARGET_ARCH} == "amd64" \|\| ${TARGET_ARCH} == "i386"
	OLD_FILES+=usr/include/machine/mptable.h
	.endif
	# 20101101: headers moved from machine/ to x86/
	.if ${TARGET_ARCH} == "amd64" \|\| ${TARGET_ARCH} == "i386"
	OLD_FILES+=usr/include/machine/apicreg.h
	OLD_FILES+=usr/include/machine/mca.h
	.endif
	# 20101020: catch up with vm_page_sleep_if_busy rename
	OLD_FILES+=usr/share/man/man9/vm_page_sleep_busy.9.gz
	# 20101018: taskqueue(9) updates
	OLD_FILES+=usr/share/man/man9/taskqueue_find.9.gz
	# 20101011: removed subblock.h from liblzma
	OLD_FILES+=usr/include/lzma/subblock.h
	# 20101002: removed manpath.config
	OLD_FILES+=etc/manpath.config
	OLD_FILES+=usr/share/examples/etc/manpath.config
	# 20100910: renamed sbuf_overflowed to sbuf_error
	OLD_FILES+=usr/share/man/man9/sbuf_overflowed.9.gz
	# 20100815: retired last traces of chooseproc(9)
	OLD_FILES+=usr/share/man/man9/chooseproc.9.gz
	# 20100806: removal of unused libcompat routines
	OLD_FILES+=usr/share/man/man3/ascftime.3.gz
	OLD_FILES+=usr/share/man/man3/cfree.3.gz
	OLD_FILES+=usr/share/man/man3/cftime.3.gz
	OLD_FILES+=usr/share/man/man3/getpw.3.gz
	# 20100725: acpi_aiboost(4) removal.
	OLD_FILES+=usr/share/man/man4/acpi_aiboost.4.gz
	# 20100724: nfsclient/nfs_lock.h moved to nfs/nfs_lock.h
	OLD_FILES+=usr/include/nfsclient/nfs_lock.h
	# 20100720: new clang import which bumps version from 2.0 to 2.8
	OLD_FILES+=usr/include/clang/2.0/emmintrin.h
	OLD_FILES+=usr/include/clang/2.0/mm_malloc.h
	OLD_FILES+=usr/include/clang/2.0/mmintrin.h
	OLD_FILES+=usr/include/clang/2.0/pmmintrin.h
	OLD_FILES+=usr/include/clang/2.0/tmmintrin.h
	OLD_FILES+=usr/include/clang/2.0/xmmintrin.h
	OLD_DIRS+=usr/include/clang/2.0
	# 20100706: removed pc-sysinstall's detect-vmware.sh
	OLD_FILES+=usr/share/pc-sysinstall/backend-query/detect-vmware.sh
	# 20100701: [powerpc] removed <machine/intr.h>
	.if ${TARGET_ARCH} == "powerpc"
	OLD_FILES+=usr/include/machine/intr.h
	.endif
	# 20100514: library version bump for versioned symbols for liblzma
	OLD_LIBS+=usr/lib/liblzma.so.0
	OLD_LIBS+=usr/lib32/liblzma.so.0
	# 20100511: move GCC-specific headers to /usr/include/gcc
	.if ${TARGET_ARCH} == "amd64" \|\| ${TARGET_ARCH} == "i386"
	OLD_FILES+=usr/include/emmintrin.h
	OLD_FILES+=usr/include/mm_malloc.h
	OLD_FILES+=usr/include/pmmintrin.h
	OLD_FILES+=usr/include/xmmintrin.h
	.endif
	.if ${TARGET_ARCH} == "amd64" \|\| ${TARGET_ARCH} == "i386" \|\| ${TARGET_ARCH} == "arm"
	OLD_FILES+=usr/include/mmintrin.h
	.endif
	.if ${TARGET_ARCH} == "powerpc"
	OLD_FILES+=usr/include/altivec.h
	OLD_FILES+=usr/include/ppc-asm.h
	OLD_FILES+=usr/include/spe.h
	.endif
	# 20100416: [mips] removed <machine/psl.h>
	.if ${TARGET_ARCH} == "mips"
	OLD_FILES+=usr/include/machine/psl.h
	.endif
	# 20100415: [mips] removed unused headers
	.if ${TARGET_ARCH} == "mips"
	OLD_FILES+=usr/include/machine/archtype.h
	OLD_FILES+=usr/include/machine/segments.h
	OLD_FILES+=usr/include/machine/rm7000.h
	OLD_FILES+=usr/include/machine/defs.h
	OLD_FILES+=usr/include/machine/queue.h
	.endif
	# 20100326: gcpio removal
	OLD_FILES+=usr/bin/gcpio
	OLD_FILES+=usr/share/info/cpio.info.gz
	OLD_FILES+=usr/share/man/man1/gcpio.1.gz
	# 20100322: libz update
	OLD_LIBS+=lib/libz.so.5
	OLD_LIBS+=usr/lib32/libz.so.5
	# 20100314: removal of regexp.h
	OLD_FILES+=usr/include/regexp.h
	OLD_FILES+=usr/share/man/man3/regexp.3.gz
	OLD_FILES+=usr/share/man/man3/regsub.3.gz
	# 20100303: actual removal of utmp.h
	OLD_FILES+=usr/include/utmp.h
	# 20100208: man pages moved
	.if ${TARGET_ARCH} == "i386"
	OLD_FILES+=usr/share/man/man4/i386/alpm.4.gz
	OLD_FILES+=usr/share/man/man4/i386/amdpm.4.gz
	OLD_FILES+=usr/share/man/man4/i386/mcd.4.gz
	OLD_FILES+=usr/share/man/man4/i386/padlock.4.gz
	OLD_FILES+=usr/share/man/man4/i386/pcf.4.gz
	OLD_FILES+=usr/share/man/man4/i386/scd.4.gz
	OLD_FILES+=usr/share/man/man4/i386/viapm.4.gz
	.endif
	# 20100122: move BSDL bc/dc USD documents to /usr/share/doc/usd
	OLD_FILES+=usr/share/doc/papers/bc.ascii.gz
	OLD_FILES+=usr/share/doc/papers/dc.ascii.gz
	# 20100120: replacing GNU bc/dc with BSDL versions
	OLD_FILES+=usr/share/examples/bc/ckbook.b
	OLD_FILES+=usr/share/examples/bc/pi.b
	OLD_FILES+=usr/share/examples/bc/primes.b
	OLD_FILES+=usr/share/examples/bc/twins.b
	OLD_FILES+=usr/share/info/dc.info.gz
	OLD_DIRS+=usr/share/examples/bc
	# 20100114: removal of ttyslot(3)
	OLD_FILES+=usr/share/man/man3/ttyslot.3.gz
	# 20100113: remove utmp.h, replace it by utmpx.h
	OLD_FILES+=usr/share/man/man3/login.3.gz
	OLD_FILES+=usr/share/man/man3/logout.3.gz
	OLD_FILES+=usr/share/man/man3/logwtmp.3.gz
	OLD_FILES+=usr/share/man/man3/ulog_endutxent.3.gz
	OLD_FILES+=usr/share/man/man3/ulog_getutxent.3.gz
	OLD_FILES+=usr/share/man/man3/ulog_getutxline.3.gz
	OLD_FILES+=usr/share/man/man3/ulog_getutxuser.3.gz
	OLD_FILES+=usr/share/man/man3/ulog_pututxline.3.gz
	OLD_FILES+=usr/share/man/man3/ulog_setutxent.3.gz
	OLD_FILES+=usr/share/man/man3/ulog_setutxfile.3.gz
	OLD_FILES+=usr/share/man/man5/lastlog.5.gz
	OLD_FILES+=usr/share/man/man5/utmp.5.gz
	OLD_FILES+=usr/share/man/man5/wtmp.5.gz
	OLD_LIBS+=lib/libutil.so.8
	OLD_LIBS+=usr/lib32/libutil.so.8
	# 20100105: new userland semaphore implementation
	OLD_FILES+=usr/include/sys/semaphore.h
	# 20100103: ntptrace(8) removed
	OLD_FILES+=usr/sbin/ntptrace
	OLD_FILES+=usr/share/man/man8/ntptrace.8.gz
	# 20091229: remove no longer relevant examples
	OLD_FILES+=usr/share/examples/pppd/auth-down.sample
	OLD_FILES+=usr/share/examples/pppd/auth-up.sample
	OLD_FILES+=usr/share/examples/pppd/chap-secrets.sample
	OLD_FILES+=usr/share/examples/pppd/chat.sh.sample
	OLD_FILES+=usr/share/examples/pppd/ip-down.sample
	OLD_FILES+=usr/share/examples/pppd/ip-up.sample
	OLD_FILES+=usr/share/examples/pppd/options.sample
	OLD_FILES+=usr/share/examples/pppd/pap-secrets.sample
	OLD_FILES+=usr/share/examples/pppd/ppp.deny.sample
	OLD_FILES+=usr/share/examples/pppd/ppp.shells.sample
	OLD_DIRS+=usr/share/examples/pppd
	OLD_FILES+=usr/share/examples/slattach/unit-command.sh
	OLD_DIRS+=usr/share/examples/slattach
	OLD_FILES+=usr/share/examples/sliplogin/slip.hosts
	OLD_FILES+=usr/share/examples/sliplogin/slip.login
	OLD_FILES+=usr/share/examples/sliplogin/slip.logout
	OLD_FILES+=usr/share/examples/sliplogin/slip.slparms
	OLD_DIRS+=usr/share/examples/sliplogin
	OLD_FILES+=usr/share/examples/startslip/sldown.sh
	OLD_FILES+=usr/share/examples/startslip/slip.sh
	OLD_FILES+=usr/share/examples/startslip/slup.sh
	OLD_DIRS+=usr/share/examples/startslip
	# 20091202: unify rc.firewall and rc.firewall6.
	OLD_FILES+=etc/rc.d/ip6fw
	OLD_FILES+=etc/rc.firewall6
	OLD_FILES+=usr/share/examples/etc/rc.firewall6
	# 20091117: removal of rc.early(8) link
	OLD_FILES+=usr/share/man/man8/rc.early.8.gz
	# 20091117: usr/share/zoneinfo/GMT link removed
	OLD_FILES+=usr/share/zoneinfo/GMT
	# 20091027: pselect.3 implemented as syscall
	OLD_FILES+=usr/share/man/man3/pselect.3.gz
	# 20091005: fusword.9 and susword.9 removed
	OLD_FILES+=usr/share/man/man9/fusword.9.gz
	OLD_FILES+=usr/share/man/man9/susword.9.gz
	# 20090909: vesa and dpms promoted to be i386/amd64 common
	OLD_FILES+=usr/include/machine/pc/vesa.h
	OLD_FILES+=usr/share/man/man4/i386/dpms.4.gz
	# 20090904: remove lukemftpd
	OLD_FILES+=usr/libexec/lukemftpd
	OLD_FILES+=usr/share/man/man5/ftpd.conf.5.gz
	OLD_FILES+=usr/share/man/man5/ftpusers.5.gz
	OLD_FILES+=usr/share/man/man8/lukemftpd.8.gz
	# 20090902: BSD.{x11,x11-4}.dist are dead and BSD.local.dist lives in ports/
	OLD_FILES+=etc/mtree/BSD.local.dist
	OLD_FILES+=etc/mtree/BSD.x11.dist
	OLD_FILES+=etc/mtree/BSD.x11-4.dist
	# 20090812: net80211 documentation overhaul
	OLD_FILES+=usr/share/man/man9/ieee80211_add_rates.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_add_xrates.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_alloc_node.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_attach.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_begin_scan.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_cfgget.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_cfgset.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_chan2ieee.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_chan2mode.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_create_ibss.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_crypto_attach.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_crypto_detach.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_decap.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_dump_pkt.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_dup_bss.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_encap.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_end_scan.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_find_node.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_fix_rate.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_free_allnodes.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_ieee2mhz.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_ioctl.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_lookup_node.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_media2rate.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_media_change.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_media_init.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_media_status.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_mhz2ieee.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_next_scan.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_node_attach.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_node_detach.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_node_lateattach.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_print_essid.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_proto_attach.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_proto_detach.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_rate2media.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_recv_mgmt.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_send_mgmt.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_setmode.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_timeout_nodes.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_watchdog.9.gz
	OLD_FILES+=usr/share/man/man9/ieee80211_wep_crypt.9.gz
	# 20090801: vimage.h removed in favour of vnet.h
	OLD_FILES+=usr/include/sys/vimage.h
	# 20101208: libbsnmp was moved to usr/lib
	OLD_LIBS+=lib/libbsnmp.so.5
	# 20090719: library version bump for 8.0
	OLD_LIBS+=lib/libalias.so.6
	OLD_LIBS+=lib/libavl.so.1
	OLD_LIBS+=lib/libbegemot.so.3
	OLD_LIBS+=lib/libbsdxml.so.3
	OLD_LIBS+=lib/libbsnmp.so.4
	OLD_LIBS+=lib/libcam.so.4
	OLD_LIBS+=lib/libcrypt.so.4
	OLD_LIBS+=lib/libcrypto.so.5
	OLD_LIBS+=lib/libctf.so.1
	OLD_LIBS+=lib/libdevstat.so.6
	OLD_LIBS+=lib/libdtrace.so.1
	OLD_LIBS+=lib/libedit.so.6
	OLD_LIBS+=lib/libgeom.so.4
	OLD_LIBS+=lib/libipsec.so.3
	OLD_LIBS+=lib/libipx.so.4
	OLD_LIBS+=lib/libkiconv.so.3
	OLD_LIBS+=lib/libkvm.so.4
	OLD_LIBS+=lib/libmd.so.4
	OLD_LIBS+=lib/libncurses.so.7
	OLD_LIBS+=lib/libncursesw.so.7
	OLD_LIBS+=lib/libnvpair.so.1
	OLD_LIBS+=lib/libpcap.so.6
	OLD_LIBS+=lib/libreadline.so.7
	OLD_LIBS+=lib/libsbuf.so.4
	OLD_LIBS+=lib/libufs.so.4
	OLD_LIBS+=lib/libumem.so.1
	OLD_LIBS+=lib/libutil.so.7
	OLD_LIBS+=lib/libuutil.so.1
	OLD_LIBS+=lib/libz.so.4
	OLD_LIBS+=lib/libzfs.so.1
	OLD_LIBS+=lib/libzpool.so.1
	OLD_LIBS+=usr/lib/libarchive.so.4
	OLD_LIBS+=usr/lib/libauditd.so.4
	OLD_LIBS+=usr/lib/libbluetooth.so.3
	OLD_LIBS+=usr/lib/libbsm.so.2
	OLD_LIBS+=usr/lib/libbz2.so.3
	OLD_LIBS+=usr/lib/libcalendar.so.4
	OLD_LIBS+=usr/lib/libcom_err.so.4
	OLD_LIBS+=usr/lib/libdevinfo.so.4
	OLD_LIBS+=usr/lib/libdialog.so.6
	OLD_LIBS+=usr/lib/libdwarf.so.1
	OLD_LIBS+=usr/lib/libfetch.so.5
	OLD_LIBS+=usr/lib/libform.so.4
	OLD_LIBS+=usr/lib/libformw.so.4
	OLD_LIBS+=usr/lib/libftpio.so.7
	OLD_LIBS+=usr/lib/libgnuregex.so.4
	OLD_LIBS+=usr/lib/libgpib.so.2
	OLD_LIBS+=usr/lib/libhistory.so.7
	OLD_LIBS+=usr/lib/libmagic.so.3
	OLD_LIBS+=usr/lib/libmemstat.so.2
	OLD_LIBS+=usr/lib/libmenu.so.4
	OLD_LIBS+=usr/lib/libmenuw.so.4
	OLD_LIBS+=usr/lib/libmilter.so.4
	OLD_LIBS+=usr/lib/libncp.so.3
	OLD_LIBS+=usr/lib/libnetgraph.so.3
	OLD_LIBS+=usr/lib/libngatm.so.3
	OLD_LIBS+=usr/lib/libobjc.so.3
	OLD_LIBS+=usr/lib/libopie.so.5
	OLD_LIBS+=usr/lib/libpam.so.4
	OLD_LIBS+=usr/lib/libpanel.so.4
	OLD_LIBS+=usr/lib/libpanelw.so.4
	OLD_LIBS+=usr/lib/libpmc.so.4
	OLD_LIBS+=usr/lib/libproc.so.1
	OLD_LIBS+=usr/lib/libradius.so.3
	OLD_LIBS+=usr/lib/librpcsvc.so.4
	OLD_LIBS+=usr/lib/libsdp.so.3
	OLD_LIBS+=usr/lib/libsmb.so.3
	OLD_LIBS+=usr/lib/libssh.so.4
	OLD_LIBS+=usr/lib/libssl.so.5
	OLD_LIBS+=usr/lib/libtacplus.so.3
	OLD_LIBS+=usr/lib/libugidfw.so.3
	OLD_LIBS+=usr/lib/libusb.so.1
	OLD_LIBS+=usr/lib/libusbhid.so.3
	OLD_LIBS+=usr/lib/libvgl.so.5
	OLD_LIBS+=usr/lib/libwrap.so.5
	OLD_LIBS+=usr/lib/libypclnt.so.3
	OLD_LIBS+=usr/lib/pam_chroot.so.4
	OLD_LIBS+=usr/lib/pam_deny.so.4
	OLD_LIBS+=usr/lib/pam_echo.so.4
	OLD_LIBS+=usr/lib/pam_exec.so.4
	OLD_LIBS+=usr/lib/pam_ftpusers.so.4
	OLD_LIBS+=usr/lib/pam_group.so.4
	OLD_LIBS+=usr/lib/pam_guest.so.4
	OLD_LIBS+=usr/lib/pam_krb5.so.4
	OLD_LIBS+=usr/lib/pam_ksu.so.4
	OLD_LIBS+=usr/lib/pam_lastlog.so.4
	OLD_LIBS+=usr/lib/pam_login_access.so.4
	OLD_LIBS+=usr/lib/pam_nologin.so.4
	OLD_LIBS+=usr/lib/pam_opie.so.4
	OLD_LIBS+=usr/lib/pam_opieaccess.so.4
	OLD_LIBS+=usr/lib/pam_passwdqc.so.4
	OLD_LIBS+=usr/lib/pam_permit.so.4
	OLD_LIBS+=usr/lib/pam_radius.so.4
	OLD_LIBS+=usr/lib/pam_rhosts.so.4
	OLD_LIBS+=usr/lib/pam_rootok.so.4
	OLD_LIBS+=usr/lib/pam_securetty.so.4
	OLD_LIBS+=usr/lib/pam_self.so.4
	OLD_LIBS+=usr/lib/pam_ssh.so.4
	OLD_LIBS+=usr/lib/pam_tacplus.so.4
	OLD_LIBS+=usr/lib/pam_unix.so.4
	OLD_LIBS+=usr/lib/snmp_atm.so.5
	OLD_LIBS+=usr/lib/snmp_bridge.so.5
	OLD_LIBS+=usr/lib/snmp_hostres.so.5
	OLD_LIBS+=usr/lib/snmp_mibII.so.5
	OLD_LIBS+=usr/lib/snmp_netgraph.so.5
	OLD_LIBS+=usr/lib/snmp_pf.so.5
	OLD_LIBS+=usr/lib32/libalias.so.6
	OLD_LIBS+=usr/lib32/libarchive.so.4
	OLD_LIBS+=usr/lib32/libauditd.so.4
	OLD_LIBS+=usr/lib32/libavl.so.1
	OLD_LIBS+=usr/lib32/libbegemot.so.3
	OLD_LIBS+=usr/lib32/libbluetooth.so.3
	OLD_LIBS+=usr/lib32/libbsdxml.so.3
	OLD_LIBS+=usr/lib32/libbsm.so.2
	OLD_LIBS+=usr/lib32/libbsnmp.so.4
	OLD_LIBS+=usr/lib32/libbz2.so.3
	OLD_LIBS+=usr/lib32/libcalendar.so.4
	OLD_LIBS+=usr/lib32/libcam.so.4
	OLD_LIBS+=usr/lib32/libcom_err.so.4
	OLD_LIBS+=usr/lib32/libcrypt.so.4
	OLD_LIBS+=usr/lib32/libcrypto.so.5
	OLD_LIBS+=usr/lib32/libctf.so.1
	OLD_LIBS+=usr/lib32/libdevinfo.so.4
	OLD_LIBS+=usr/lib32/libdevstat.so.6
	OLD_LIBS+=usr/lib32/libdialog.so.6
	OLD_LIBS+=usr/lib32/libdtrace.so.1
	OLD_LIBS+=usr/lib32/libdwarf.so.1
	OLD_LIBS+=usr/lib32/libedit.so.6
	OLD_LIBS+=usr/lib32/libfetch.so.5
	OLD_LIBS+=usr/lib32/libform.so.4
	OLD_LIBS+=usr/lib32/libformw.so.4
	OLD_LIBS+=usr/lib32/libftpio.so.7
	OLD_LIBS+=usr/lib32/libgeom.so.4
	OLD_LIBS+=usr/lib32/libgnuregex.so.4
	OLD_LIBS+=usr/lib32/libgpib.so.2
	OLD_LIBS+=usr/lib32/libhistory.so.7
	OLD_LIBS+=usr/lib32/libipsec.so.3
	OLD_LIBS+=usr/lib32/libipx.so.4
	OLD_LIBS+=usr/lib32/libkiconv.so.3
	OLD_LIBS+=usr/lib32/libkvm.so.4
	OLD_LIBS+=usr/lib32/libmagic.so.3
	OLD_LIBS+=usr/lib32/libmd.so.4
	OLD_LIBS+=usr/lib32/libmemstat.so.2
	OLD_LIBS+=usr/lib32/libmenu.so.4
	OLD_LIBS+=usr/lib32/libmenuw.so.4
	OLD_LIBS+=usr/lib32/libmilter.so.4
	OLD_LIBS+=usr/lib32/libncp.so.3
	OLD_LIBS+=usr/lib32/libncurses.so.7
	OLD_LIBS+=usr/lib32/libncursesw.so.7
	OLD_LIBS+=usr/lib32/libnetgraph.so.3
	OLD_LIBS+=usr/lib32/libngatm.so.3
	OLD_LIBS+=usr/lib32/libnvpair.so.1
	OLD_LIBS+=usr/lib32/libobjc.so.3
	OLD_LIBS+=usr/lib32/libopie.so.5
	OLD_LIBS+=usr/lib32/libpam.so.4
	OLD_LIBS+=usr/lib32/libpanel.so.4
	OLD_LIBS+=usr/lib32/libpanelw.so.4
	OLD_LIBS+=usr/lib32/libpcap.so.6
	OLD_LIBS+=usr/lib32/libpmc.so.4
	OLD_LIBS+=usr/lib32/libproc.so.1
	OLD_LIBS+=usr/lib32/libradius.so.3
	OLD_LIBS+=usr/lib32/libreadline.so.7
	OLD_LIBS+=usr/lib32/librpcsvc.so.4
	OLD_LIBS+=usr/lib32/libsbuf.so.4
	OLD_LIBS+=usr/lib32/libsdp.so.3
	OLD_LIBS+=usr/lib32/libsmb.so.3
	OLD_LIBS+=usr/lib32/libssh.so.4
	OLD_LIBS+=usr/lib32/libssl.so.5
	OLD_LIBS+=usr/lib32/libtacplus.so.3
	OLD_LIBS+=usr/lib32/libufs.so.4
	OLD_LIBS+=usr/lib32/libugidfw.so.3
	OLD_LIBS+=usr/lib32/libumem.so.1
	OLD_LIBS+=usr/lib32/libusb.so.1
	OLD_LIBS+=usr/lib32/libusbhid.so.3
	OLD_LIBS+=usr/lib32/libutil.so.7
	OLD_LIBS+=usr/lib32/libuutil.so.1
	OLD_LIBS+=usr/lib32/libvgl.so.5
	OLD_LIBS+=usr/lib32/libwrap.so.5
	OLD_LIBS+=usr/lib32/libypclnt.so.3
	OLD_LIBS+=usr/lib32/libz.so.4
	OLD_LIBS+=usr/lib32/libzfs.so.1
	OLD_LIBS+=usr/lib32/libzpool.so.1
	OLD_LIBS+=usr/lib32/pam_chroot.so.4
	OLD_LIBS+=usr/lib32/pam_deny.so.4
	OLD_LIBS+=usr/lib32/pam_echo.so.4
	OLD_LIBS+=usr/lib32/pam_exec.so.4
	OLD_LIBS+=usr/lib32/pam_ftpusers.so.4
	OLD_LIBS+=usr/lib32/pam_group.so.4
	OLD_LIBS+=usr/lib32/pam_guest.so.4
	OLD_LIBS+=usr/lib32/pam_krb5.so.4
	OLD_LIBS+=usr/lib32/pam_ksu.so.4
	OLD_LIBS+=usr/lib32/pam_lastlog.so.4
	OLD_LIBS+=usr/lib32/pam_login_access.so.4
	OLD_LIBS+=usr/lib32/pam_nologin.so.4
	OLD_LIBS+=usr/lib32/pam_opie.so.4
	OLD_LIBS+=usr/lib32/pam_opieaccess.so.4
	OLD_LIBS+=usr/lib32/pam_passwdqc.so.4
	OLD_LIBS+=usr/lib32/pam_permit.so.4
	OLD_LIBS+=usr/lib32/pam_radius.so.4
	OLD_LIBS+=usr/lib32/pam_rhosts.so.4
	OLD_LIBS+=usr/lib32/pam_rootok.so.4
	OLD_LIBS+=usr/lib32/pam_securetty.so.4
	OLD_LIBS+=usr/lib32/pam_self.so.4
	OLD_LIBS+=usr/lib32/pam_ssh.so.4
	OLD_LIBS+=usr/lib32/pam_tacplus.so.4
	OLD_LIBS+=usr/lib32/pam_unix.so.4
	# 20090718: the gdm pam.d file is no longer required.
	OLD_FILES+=etc/pam.d/gdm
	# 20090714: net_add_domain(9) renamed to domain_add(9)
	OLD_FILES+=usr/share/man/man9/net_add_domain.9.gz
	# 20090713: vimage container structs removed.
	OLD_FILES+=usr/include/netinet/vinet.h
	OLD_FILES+=usr/include/netinet6/vinet6.h
	OLD_FILES+=usr/include/netipsec/vipsec.h
	# 20090712: ieee80211.4 -> net80211.4
	OLD_FILES+=usr/share/man/man4/ieee80211.4.gz
	# 20090711: typo fixed, kproc_resume,.9 -> kproc_resume.9
	OLD_FILES+=usr/share/man/man9/kproc_resume,.9.gz
	# 20090709: msgctl.3 msgget.3 msgrcv.3 msgsnd.3 manual pages moved
	OLD_FILES+=usr/share/man/man3/msgctl.3.gz
	OLD_FILES+=usr/share/man/man3/msgget.3.gz
	OLD_FILES+=usr/share/man/man3/msgrcv.3.gz
	OLD_FILES+=usr/share/man/man3/msgsnd.3.gz
	# 20090630: old kernel RPC implementation removal
	OLD_FILES+=usr/include/nfs/rpcv2.h
	# 20090624: update usbdi(9)
	OLD_FILES+=usr/share/man/man9/usbd_abort_default_pipe.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_abort_pipe.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_alloc_buffer.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_alloc_xfer.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_clear_endpoint_stall.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_clear_endpoint_stall_async.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_clear_endpoint_toggle.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_close_pipe.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_device2interface_handle.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_do_request_async.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_do_request_flags_pipe.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_endpoint_count.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_find_edesc.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_find_idesc.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_free_buffer.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_free_xfer.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_get_buffer.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_get_config.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_get_config_desc.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_get_config_desc_full.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_get_config_descriptor.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_get_device_descriptor.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_get_endpoint_descriptor.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_get_interface_altindex.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_get_interface_descriptor.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_get_no_alts.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_get_quirks.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_get_speed.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_get_string.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_get_string_desc.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_get_xfer_status.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_interface2device_handle.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_interface2endpoint_descriptor.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_interface_count.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_open_pipe.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_open_pipe_intr.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_pipe2device_handle.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_set_config_index.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_set_config_no.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_set_interface.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_setup_default_xfer.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_setup_isoc_xfer.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_setup_xfer.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_sync_transfer.9.gz
	OLD_FILES+=usr/share/man/man9/usbd_transfer.9.gz
	OLD_FILES+=usr/share/man/man9/usb_find_desc.9.gz
	# 20090623: number of headers needed for a usb driver reduced
	OLD_FILES+=usr/include/dev/usb/usb_defs.h
	OLD_FILES+=usr/include/dev/usb/usb_error.h
	OLD_FILES+=usr/include/dev/usb/usb_handle_request.h
	OLD_FILES+=usr/include/dev/usb/usb_hid.h
	OLD_FILES+=usr/include/dev/usb/usb_lookup.h
	OLD_FILES+=usr/include/dev/usb/usb_mfunc.h
	OLD_FILES+=usr/include/dev/usb/usb_parse.h
	OLD_FILES+=usr/include/dev/usb/usb_revision.h
	# 20090609: devclass_add_driver is no longer public
	OLD_FILES+=usr/share/man/man9/devclass_add_driver.9.gz
	OLD_FILES+=usr/share/man/man9/devclass_delete_driver.9.gz
	OLD_FILES+=usr/share/man/man9/devclass_find_driver.9.gz
	# 20090605: removal of clists
	OLD_FILES+=usr/include/sys/clist.h
	# 20090602: removal of window(1)
	OLD_FILES+=usr/bin/window
	OLD_FILES+=usr/share/man/man1/window.1.gz
	# 20090531: bind 9.6.1rc1 import
	OLD_LIBS+=usr/lib/liblwres.so.30
	# 20090530: removal of early.sh
	OLD_FILES+=etc/rc.d/early.sh
	# 20090527: renaming of S{LIST,TAILQ}_REMOVE_NEXT() to _REMOVE_AFTER()
	OLD_FILES+=usr/share/man/man3/SLIST_REMOVE_NEXT.3.gz
	OLD_FILES+=usr/share/man/man3/STAILQ_REMOVE_NEXT.3.gz
	# 20090527: removal of legacy USB stack
	OLD_FILES+=usr/include/legacy/dev/usb/dsbr100io.h
	OLD_FILES+=usr/include/legacy/dev/usb/ehcireg.h
	OLD_FILES+=usr/include/legacy/dev/usb/ehcivar.h
	OLD_FILES+=usr/include/legacy/dev/usb/hid.h
	OLD_FILES+=usr/include/legacy/dev/usb/if_urtwreg.h
	OLD_FILES+=usr/include/legacy/dev/usb/if_urtwvar.h
	OLD_FILES+=usr/include/legacy/dev/usb/ohcireg.h
	OLD_FILES+=usr/include/legacy/dev/usb/ohcivar.h
	OLD_FILES+=usr/include/legacy/dev/usb/rio500_usb.h
	OLD_FILES+=usr/include/legacy/dev/usb/rt2573_ucode.h
	OLD_FILES+=usr/include/legacy/dev/usb/sl811hsreg.h
	OLD_FILES+=usr/include/legacy/dev/usb/sl811hsvar.h
	OLD_FILES+=usr/include/legacy/dev/usb/ubser.h
	OLD_FILES+=usr/include/legacy/dev/usb/ucomvar.h
	OLD_FILES+=usr/include/legacy/dev/usb/udbp.h
	OLD_FILES+=usr/include/legacy/dev/usb/uftdireg.h
	OLD_FILES+=usr/include/legacy/dev/usb/ugraphire_rdesc.h
	OLD_FILES+=usr/include/legacy/dev/usb/uhcireg.h
	OLD_FILES+=usr/include/legacy/dev/usb/uhcivar.h
	OLD_FILES+=usr/include/legacy/dev/usb/usb.h
	OLD_FILES+=usr/include/legacy/dev/usb/usb_mem.h
	OLD_FILES+=usr/include/legacy/dev/usb/usb_port.h
	OLD_FILES+=usr/include/legacy/dev/usb/usb_quirks.h
	OLD_FILES+=usr/include/legacy/dev/usb/usbcdc.h
	OLD_FILES+=usr/include/legacy/dev/usb/usbdi.h
	OLD_FILES+=usr/include/legacy/dev/usb/usbdi_util.h
	OLD_FILES+=usr/include/legacy/dev/usb/usbdivar.h
	OLD_FILES+=usr/include/legacy/dev/usb/usbhid.h
	OLD_FILES+=usr/include/legacy/dev/usb/uxb360gp_rdesc.h
	OLD_DIRS+=usr/include/legacy/dev/usb
	OLD_DIRS+=usr/include/legacy/dev
	OLD_DIRS+=usr/include/legacy
	# 20090526: removal of makekey(8)
	OLD_FILES+=usr/libexec/makekey
	OLD_FILES+=usr/share/man/man8/makekey.8.gz
	# 20090522: removal of University of Michigan NFSv4 client
	OLD_FILES+=etc/rc.d/idmapd
	OLD_FILES+=sbin/idmapd
	OLD_FILES+=sbin/mount_nfs4
	OLD_FILES+=usr/share/man/man8/idmapd.8.gz
	OLD_FILES+=usr/share/man/man8/mount_nfs4.8.gz
	# 20090513: removal of legacy versions of USB network interface drivers
	OLD_FILES+=usr/include/legacy/dev/usb/if_upgtvar.h
	OLD_FILES+=usr/include/legacy/dev/usb/usb_ethersubr.h
	# 20090417: removal of legacy versions of USB network interface drivers
	OLD_FILES+=usr/include/legacy/dev/usb/if_auereg.h
	OLD_FILES+=usr/include/legacy/dev/usb/if_axereg.h
	OLD_FILES+=usr/include/legacy/dev/usb/if_cdcereg.h
	OLD_FILES+=usr/include/legacy/dev/usb/if_cuereg.h
	OLD_FILES+=usr/include/legacy/dev/usb/if_kuereg.h
	OLD_FILES+=usr/include/legacy/dev/usb/if_ruereg.h
	OLD_FILES+=usr/include/legacy/dev/usb/if_rumreg.h
	OLD_FILES+=usr/include/legacy/dev/usb/if_rumvar.h
	OLD_FILES+=usr/include/legacy/dev/usb/if_udavreg.h
	OLD_FILES+=usr/include/legacy/dev/usb/if_uralreg.h
	OLD_FILES+=usr/include/legacy/dev/usb/if_uralvar.h
	OLD_FILES+=usr/include/legacy/dev/usb/if_zydfw.h
	OLD_FILES+=usr/include/legacy/dev/usb/if_zydreg.h
	OLD_FILES+=usr/include/legacy/dev/usb/kue_fw.h
	# 20090416: removal of ar(4), ray(4), sr(4), raycontrol(8)
	OLD_FILES+=usr/sbin/raycontrol
	OLD_FILES+=usr/share/man/man4/i386/ar.4.gz
	OLD_FILES+=usr/share/man/man4/i386/ray.4.gz
	OLD_FILES+=usr/share/man/man4/i386/sr.4.gz
	OLD_FILES+=usr/share/man/man8/raycontrol.8.gz
	# 20090410: VOP_LEASE.9 removed
	OLD_FILES+=usr/share/man/man9/VOP_LEASE.9.gz
	# 20090406: usb_sw_transfer.h removed
	OLD_FILES+=usr/include/dev/usb/usb_sw_transfer.h
	# 20090405: removal of if_ppp(4) and if_sl(4)
	OLD_FILES+=sbin/slattach rescue/slattach
	OLD_FILES+=sbin/startslip rescue/startslip
	OLD_FILES+=usr/include/net/if_ppp.h
	OLD_FILES+=usr/include/net/if_pppvar.h
	OLD_FILES+=usr/include/net/if_slvar.h
	OLD_FILES+=usr/include/net/ppp_comp.h
	OLD_FILES+=usr/include/net/slip.h
	OLD_FILES+=usr/sbin/sliplogin
	OLD_FILES+=usr/sbin/slstat
	OLD_FILES+=usr/sbin/pppd
	OLD_FILES+=usr/sbin/pppstats
	OLD_FILES+=usr/share/man/man1/startslip.1.gz
	OLD_FILES+=usr/share/man/man4/if_ppp.4.gz
	OLD_FILES+=usr/share/man/man4/if_sl.4.gz
	OLD_FILES+=usr/share/man/man4/ppp.4.gz
	OLD_FILES+=usr/share/man/man4/sl.4.gz
	OLD_FILES+=usr/share/man/man8/pppd.8.gz
	OLD_FILES+=usr/share/man/man8/pppstats.8.gz
	OLD_FILES+=usr/share/man/man8/slattach.8.gz
	OLD_FILES+=usr/share/man/man8/slip.8.gz
	OLD_FILES+=usr/share/man/man8/sliplogin.8.gz
	OLD_FILES+=usr/share/man/man8/slstat.8.gz
	# 20090321: libpcap upgraded to 1.0.0
	OLD_LIBS+=lib/libpcap.so.5
	OLD_LIBS+=usr/lib32/libpcap.so.5
	# 20090319: uscanner(4) has been removed
	OLD_FILES+=usr/share/man/man4/uscanner.4.gz
	# 20090313: k8temp(4) renamed to amdtemp(4)
	OLD_FILES+=usr/share/man/man4/k8temp.4.gz
	# 20090308: libusb.so.1 renamed
	OLD_LIBS+=usr/lib/libusb20.so.1
	OLD_FILES+=usr/lib/libusb20.a
	OLD_FILES+=usr/lib/libusb20.so
	OLD_FILES+=usr/lib/libusb20_p.a
	OLD_FILES+=usr/include/libusb20_compat01.h
	OLD_FILES+=usr/include/libusb20_compat10.h
	OLD_LIBS+=usr/lib32/libusb20.so.1
	OLD_FILES+=usr/lib32/libusb20.a
	OLD_FILES+=usr/lib32/libusb20.so
	OLD_FILES+=usr/lib32/libusb20_p.a
	# 20090226: libmp(3) functions renamed
	OLD_LIBS+=usr/lib/libmp.so.6
	OLD_LIBS+=usr/lib32/libmp.so.6
	# 20090223: changeover of USB stacks
	OLD_FILES+=usr/include/dev/usb2/include/ufm2_ioctl.h
	OLD_FILES+=usr/include/dev/usb2/include/urio2_ioctl.h
	OLD_FILES+=usr/include/dev/usb2/include/usb2_cdc.h
	OLD_FILES+=usr/include/dev/usb2/include/usb2_defs.h
	OLD_FILES+=usr/include/dev/usb2/include/usb2_devid.h
	OLD_FILES+=usr/include/dev/usb2/include/usb2_devtable.h
	OLD_FILES+=usr/include/dev/usb2/include/usb2_endian.h
	OLD_FILES+=usr/include/dev/usb2/include/usb2_error.h
	OLD_FILES+=usr/include/dev/usb2/include/usb2_hid.h
	OLD_FILES+=usr/include/dev/usb2/include/usb2_ioctl.h
	OLD_FILES+=usr/include/dev/usb2/include/usb2_mfunc.h
	OLD_FILES+=usr/include/dev/usb2/include/usb2_revision.h
	OLD_FILES+=usr/include/dev/usb2/include/usb2_standard.h
	OLD_DIRS+=usr/include/dev/usb2/include
	OLD_DIRS+=usr/include/dev/usb2
	OLD_FILES+=usr/include/dev/usb/dsbr100io.h
	OLD_FILES+=usr/include/dev/usb/ehcireg.h
	OLD_FILES+=usr/include/dev/usb/ehcivar.h
	OLD_FILES+=usr/include/dev/usb/hid.h
	OLD_FILES+=usr/include/dev/usb/if_auereg.h
	OLD_FILES+=usr/include/dev/usb/if_axereg.h
	OLD_FILES+=usr/include/dev/usb/if_cdcereg.h
	OLD_FILES+=usr/include/dev/usb/if_cuereg.h
	OLD_FILES+=usr/include/dev/usb/if_kuereg.h
	OLD_FILES+=usr/include/dev/usb/if_ruereg.h
	OLD_FILES+=usr/include/dev/usb/if_rumreg.h
	OLD_FILES+=usr/include/dev/usb/if_rumvar.h
	OLD_FILES+=usr/include/dev/usb/if_udavreg.h
	OLD_FILES+=usr/include/dev/usb/if_upgtvar.h
	OLD_FILES+=usr/include/dev/usb/if_uralreg.h
	OLD_FILES+=usr/include/dev/usb/if_uralvar.h
	OLD_FILES+=usr/include/dev/usb/if_urtwreg.h
	OLD_FILES+=usr/include/dev/usb/if_urtwvar.h
	OLD_FILES+=usr/include/dev/usb/if_zydfw.h
	OLD_FILES+=usr/include/dev/usb/if_zydreg.h
	OLD_FILES+=usr/include/dev/usb/kue_fw.h
	OLD_FILES+=usr/include/dev/usb/ohcireg.h
	OLD_FILES+=usr/include/dev/usb/ohcivar.h
	OLD_FILES+=usr/include/dev/usb/rio500_usb.h
	OLD_FILES+=usr/include/dev/usb/rt2573_ucode.h
	OLD_FILES+=usr/include/dev/usb/sl811hsreg.h
	OLD_FILES+=usr/include/dev/usb/sl811hsvar.h
	OLD_FILES+=usr/include/dev/usb/ubser.h
	OLD_FILES+=usr/include/dev/usb/ucomvar.h
	OLD_FILES+=usr/include/dev/usb/udbp.h
	OLD_FILES+=usr/include/dev/usb/uftdireg.h
	OLD_FILES+=usr/include/dev/usb/ugraphire_rdesc.h
	OLD_FILES+=usr/include/dev/usb/uhcireg.h
	OLD_FILES+=usr/include/dev/usb/uhcivar.h
	OLD_FILES+=usr/include/dev/usb/usb_ethersubr.h
	OLD_FILES+=usr/include/dev/usb/usb_mem.h
	OLD_FILES+=usr/include/dev/usb/usb_port.h
	OLD_FILES+=usr/include/dev/usb/usb_quirks.h
	OLD_FILES+=usr/include/dev/usb/usbcdc.h
	OLD_FILES+=usr/include/dev/usb/usbdivar.h
	OLD_FILES+=usr/include/dev/usb/uxb360gp_rdesc.h
	OLD_FILES+=usr/sbin/usbdevs
	OLD_FILES+=usr/share/man/man8/usbdevs.8.gz
	# 20090203: removal of pccard header files
	OLD_FILES+=usr/include/pccard/cardinfo.h
	OLD_FILES+=usr/include/pccard/cis.h
	OLD_DIRS+=usr/include/pccard
	# 20090203: adding_user.8 moved to adding_user.7
	OLD_FILES+=usr/share/man/man8/adding_user.8.gz
	# 20090102: file 4.26 import
	OLD_FILES+=usr/share/misc/magic.mime
	OLD_FILES+=usr/share/misc/magic.mime.mgc
	# 20081223: bind 9.4.3 import, nsupdate.8 moved to nsupdate.1
	OLD_FILES+=usr/share/man/man8/nsupdate.8.gz
	# 20081223: ipprotosw.h removed
	OLD_FILES+=usr/include/netinet/ipprotosw.h
	# 20081123: vfs_mountedon.9 removed
	OLD_FILES+=usr/share/man/man9/vfs_mountedon.9.gz
	# 20081023: FREE.9 and MALLOC.9 removed
	OLD_FILES+=usr/share/man/man9/FREE.9.gz
	OLD_FILES+=usr/share/man/man9/MALLOC.9.gz
	# 20080928: removal of inaccurate device_ids(9) manual page
	OLD_FILES+=usr/share/man/man9/device_ids.9.gz
	OLD_FILES+=usr/share/man/man9/major.9.gz
	OLD_FILES+=usr/share/man/man9/minor.9.gz
	OLD_FILES+=usr/share/man/man9/umajor.9.gz
	OLD_FILES+=usr/share/man/man9/uminor.9.gz
	# 20080917: removal of manpage for axed kernel primitive suser(9)
	OLD_FILES+=usr/share/man/man9/suser.9.gz
	OLD_FILES+=usr/share/man/man9/suser_cred.9.gz
	# 20080913: pax removed from rescue
	OLD_FILES+=rescue/pax
	# 20080823: removal of unneeded pt_chown, to implement grantpt(3)
	OLD_FILES+=usr/libexec/pt_chown
	# 20080822: ntp 4.2.4p5 import
	OLD_FILES+=usr/share/doc/ntp/driver23.html
	OLD_FILES+=usr/share/doc/ntp/driver24.html
	# 20080821: several man pages moved from man4.i386 to man4
	.if ${TARGET_ARCH} == "i386"
	OLD_FILES+=usr/share/man/man4/i386/acpi_aiboost.4.gz
	OLD_FILES+=usr/share/man/man4/i386/acpi_asus.4.gz
	OLD_FILES+=usr/share/man/man4/i386/acpi_fujitsu.4.gz
	OLD_FILES+=usr/share/man/man4/i386/acpi_ibm.4.gz
	OLD_FILES+=usr/share/man/man4/i386/acpi_panasonic.4.gz
	OLD_FILES+=usr/share/man/man4/i386/acpi_sony.4.gz
	OLD_FILES+=usr/share/man/man4/i386/acpi_toshiba.4.gz
	OLD_FILES+=usr/share/man/man4/i386/ichwd.4.gz
	OLD_FILES+=usr/share/man/man4/i386/if_ndis.4.gz
	OLD_FILES+=usr/share/man/man4/i386/io.4.gz
	OLD_FILES+=usr/share/man/man4/i386/linux.4.gz
	OLD_FILES+=usr/share/man/man4/i386/ndis.4.gz
	.endif
	# 20080820: MPSAFE TTY layer integrated
	OLD_FILES+=usr/include/sys/linedisc.h
	OLD_FILES+=usr/share/man/man3/posix_openpt.3.gz
	# 20080725: sgtty.h removed
	OLD_FILES+=usr/include/sgtty.h
	# 20080706: bsdlabel(8) removed on powerpc
	.if ${TARGET_ARCH} == "powerpc"
	OLD_FILES+=sbin/bsdlabel
	OLD_FILES+=usr/share/man/man8/bsdlabel.8.gz
	.endif
	# 20080704: sbsh(4) removed
	OLD_FILES+=usr/share/man/man4/if_sbsh.4.gz
	OLD_FILES+=usr/share/man/man4/sbsh.4.gz
	# 20080704: cnw(4) removed
	OLD_FILES+=usr/share/man/man4/if_cnw.4.gz
	OLD_FILES+=usr/share/man/man4/cnw.4.gz
	# 20080704: oltr(4) removed
	.if ${TARGET_ARCH} == "i386"
	OLD_FILES+=usr/share/man/man4/i386/if_oltr.4.gz
	OLD_FILES+=usr/share/man/man4/i386/oltr.4.gz
	.endif
	# 20080704: arl(4) removed
	.if ${TARGET_ARCH} == "i386"
	OLD_FILES+=usr/sbin/arlcontrol
	OLD_FILES+=usr/share/man/man4/i386/arl.4.gz
	OLD_FILES+=usr/share/man/man8/arlcontrol.8.gz
	.endif
	# 20080703: sunlabel only for sparc64
	.if ${TARGET_ARCH} != "sparc64"
	OLD_FILES+=sbin/sunlabel
	OLD_FILES+=usr/share/man/man8/sunlabel.8.gz
	.endif
	# 20080701: wpa_supplicant.conf moved to share/examples/etc/
	OLD_FILES+=usr/share/examples/wpa_supplicant/wpa_supplicant.conf
	OLD_DIRS+=usr/share/examples/wpa_supplicant
	# 20080614: pecoff image activator removed
	.if ${TARGET_ARCH} == "i386"
	OLD_FILES+=usr/include/machine/pecoff_machdep.h
	.endif
	# 20080614: sgtty removed
	OLD_FILES+=usr/include/sys/ttychars.h
	OLD_FILES+=usr/include/sys/ttydev.h
	OLD_FILES+=usr/share/man/man3/gtty.3.gz
	OLD_FILES+=usr/share/man/man3/stty.3.gz
	# 20080609: gpt(8) removed
	OLD_FILES+=sbin/gpt
	OLD_FILES+=usr/share/man/man8/gpt.8.gz
	# 20080525: I4B removed
	OLD_FILES+=etc/isdn/answer
	OLD_FILES+=etc/isdn/isdntel
	OLD_FILES+=etc/isdn/record
	OLD_FILES+=etc/isdn/tell
	OLD_FILES+=etc/isdn/tell-record
	OLD_FILES+=etc/isdn/unknown_incoming
	OLD_FILES+=etc/isdn/holidays.D
	OLD_FILES+=etc/isdn/isdnd.rates.A
	OLD_FILES+=etc/isdn/isdnd.rates.D
	OLD_FILES+=etc/isdn/isdnd.rates.F
	OLD_FILES+=etc/isdn/isdnd.rates.L
	OLD_FILES+=etc/isdn/isdnd.rates.UK.BT
	OLD_FILES+=etc/isdn/isdnd.rc.sample
	OLD_FILES+=etc/isdn/isdntel.alias.sample
	OLD_DIRS+=etc/isdn
	OLD_FILES+=etc/rc.d/isdnd
	OLD_FILES+=usr/include/i4b/i4b_cause.h
	OLD_FILES+=usr/include/i4b/i4b_debug.h
	OLD_FILES+=usr/include/i4b/i4b_ioctl.h
	OLD_FILES+=usr/include/i4b/i4b_rbch_ioctl.h
	OLD_FILES+=usr/include/i4b/i4b_tel_ioctl.h
	OLD_FILES+=usr/include/i4b/i4b_trace.h
	OLD_DIRS+=usr/include/i4b
	OLD_FILES+=usr/sbin/dtmfdecode
	OLD_FILES+=usr/sbin/g711conv
	OLD_FILES+=usr/sbin/isdnd
	OLD_FILES+=usr/sbin/isdndebug
	OLD_FILES+=usr/sbin/isdndecode
	OLD_FILES+=usr/sbin/isdnmonitor
	OLD_FILES+=usr/sbin/isdnphone
	OLD_FILES+=usr/sbin/isdntel
	OLD_FILES+=usr/sbin/isdntelctl
	OLD_FILES+=usr/sbin/isdntrace
	OLD_FILES+=usr/share/isdn/0.al
	OLD_FILES+=usr/share/isdn/1.al
	OLD_FILES+=usr/share/isdn/2.al
	OLD_FILES+=usr/share/isdn/3.al
	OLD_FILES+=usr/share/isdn/4.al
	OLD_FILES+=usr/share/isdn/5.al
	OLD_FILES+=usr/share/isdn/6.al
	OLD_FILES+=usr/share/isdn/7.al
	OLD_FILES+=usr/share/isdn/8.al
	OLD_FILES+=usr/share/isdn/9.al
	OLD_FILES+=usr/share/isdn/beep.al
	OLD_FILES+=usr/share/isdn/msg.al
	OLD_DIRS+=usr/share/isdn
	OLD_FILES+=usr/share/man/man1/dtmfdecode.1.gz
	OLD_FILES+=usr/share/man/man1/g711conv.1.gz
	OLD_FILES+=usr/share/man/man4/i4b.4.gz
	OLD_FILES+=usr/share/man/man4/i4bcapi.4.gz
	OLD_FILES+=usr/share/man/man4/i4bctl.4.gz
	OLD_FILES+=usr/share/man/man4/i4bing.4.gz
	OLD_FILES+=usr/share/man/man4/i4bipr.4.gz
	OLD_FILES+=usr/share/man/man4/i4bisppp.4.gz
	OLD_FILES+=usr/share/man/man4/i4bq921.4.gz
	OLD_FILES+=usr/share/man/man4/i4bq931.4.gz
	OLD_FILES+=usr/share/man/man4/i4brbch.4.gz
	OLD_FILES+=usr/share/man/man4/i4btel.4.gz
	OLD_FILES+=usr/share/man/man4/i4btrc.4.gz
	OLD_FILES+=usr/share/man/man4/iavc.4.gz
	OLD_FILES+=usr/share/man/man4/isic.4.gz
	OLD_FILES+=usr/share/man/man4/ifpi.4.gz
	OLD_FILES+=usr/share/man/man4/ifpi2.4.gz
	OLD_FILES+=usr/share/man/man4/ifpnp.4.gz
	OLD_FILES+=usr/share/man/man4/ihfc.4.gz
	OLD_FILES+=usr/share/man/man4/itjc.4.gz
	OLD_FILES+=usr/share/man/man4/iwic.4.gz
	OLD_FILES+=usr/share/man/man5/isdnd.rc.5.gz
	OLD_FILES+=usr/share/man/man5/isdnd.rates.5.gz
	OLD_FILES+=usr/share/man/man5/isdnd.acct.5.gz
	OLD_FILES+=usr/share/man/man8/isdnd.8.gz
	OLD_FILES+=usr/share/man/man8/isdndebug.8.gz
	OLD_FILES+=usr/share/man/man8/isdndecode.8.gz
	OLD_FILES+=usr/share/man/man8/isdnmonitor.8.gz
	OLD_FILES+=usr/share/man/man8/isdnphone.8.gz
	OLD_FILES+=usr/share/man/man8/isdntel.8.gz
	OLD_FILES+=usr/share/man/man8/isdntelctl.8.gz
	OLD_FILES+=usr/share/man/man8/isdntrace.8.gz
	OLD_FILES+=usr/share/examples/isdn/contrib/README
	OLD_FILES+=usr/share/examples/isdn/contrib/anleitung.ppp
	OLD_FILES+=usr/share/examples/isdn/contrib/answer.c
	OLD_FILES+=usr/share/examples/isdn/contrib/answer.sh
	OLD_FILES+=usr/share/examples/isdn/contrib/convert.sh
	OLD_FILES+=usr/share/examples/isdn/contrib/hplay.c
	OLD_FILES+=usr/share/examples/isdn/contrib/i4b-ppp-newbie.txt
	OLD_FILES+=usr/share/examples/isdn/contrib/isdnctl
	OLD_FILES+=usr/share/examples/isdn/contrib/isdnd_acct
	OLD_FILES+=usr/share/examples/isdn/contrib/isdnd_acct.pl
	OLD_FILES+=usr/share/examples/isdn/contrib/isdntelmux.c
	OLD_FILES+=usr/share/examples/isdn/contrib/mrtg-isp0.sh
	OLD_FILES+=usr/share/examples/isdn/i4brunppp/Makefile
	OLD_FILES+=usr/share/examples/isdn/i4brunppp/README
	OLD_FILES+=usr/share/examples/isdn/i4brunppp/i4brunppp-isdnd.rc
	OLD_FILES+=usr/share/examples/isdn/i4brunppp/i4brunppp.8
	OLD_FILES+=usr/share/examples/isdn/i4brunppp/i4brunppp.c
	OLD_FILES+=usr/share/examples/isdn/v21/Makefile
	OLD_FILES+=usr/share/examples/isdn/v21/README
	OLD_FILES+=usr/share/examples/isdn/v21/v21modem.c
	OLD_FILES+=usr/share/examples/isdn/FAQ
	OLD_FILES+=usr/share/examples/isdn/KERNEL
	OLD_FILES+=usr/share/examples/isdn/Overview
	OLD_FILES+=usr/share/examples/isdn/README
	OLD_FILES+=usr/share/examples/isdn/ROADMAP
	OLD_FILES+=usr/share/examples/isdn/ReleaseNotes
	OLD_FILES+=usr/share/examples/isdn/Resources
	OLD_FILES+=usr/share/examples/isdn/SupportedCards
	OLD_FILES+=usr/share/examples/isdn/ThankYou
	OLD_DIRS+=usr/share/examples/isdn/contrib
	OLD_DIRS+=usr/share/examples/isdn/i4brunppp
	OLD_DIRS+=usr/share/examples/isdn/v21
	OLD_DIRS+=usr/share/examples/isdn
	OLD_FILES+=usr/share/examples/ppp/isdnd.rc
	OLD_FILES+=usr/share/examples/ppp/ppp.conf.isdn
	# 20080525: ng_atmpif removed
	OLD_FILES+=usr/include/netgraph/atm/ng_atmpif.h
	OLD_FILES+=usr/share/man/man4/ng_atmpif.4.gz
	# 20080522: pmap_addr_hint removed
	OLD_FILES+=usr/share/man/man9/pmap_addr_hint.9.gz
	# 20080517: ipsec_osdep.h removed
	OLD_FILES+=usr/include/netipsec/ipsec_osdep.h
	# 20080507: heimdal 1.1 import
	OLD_LIBS+=usr/lib/libasn1.so.9
	OLD_LIBS+=usr/lib/libgssapi.so.9
	OLD_LIBS+=usr/lib/libgssapi_krb5.so.9
	OLD_LIBS+=usr/lib/libhdb.so.9
	OLD_LIBS+=usr/lib/libkadm5clnt.so.9
	OLD_LIBS+=usr/lib/libkadm5srv.so.9
	OLD_LIBS+=usr/lib/libkafs5.so.9
	OLD_LIBS+=usr/lib/libkrb5.so.9
	OLD_LIBS+=usr/lib/libroken.so.9
	OLD_LIBS+=usr/lib32/libgssapi.so.9
	# 20080420: Symbol card support dropped
	OLD_FILES+=usr/include/dev/wi/spectrum24t_cf.h
	# 20080420: awi removal
	OLD_FILES+=usr/share/man/man4/awi.4.gz
	OLD_FILES+=usr/share/man/man4/if_awi.4.gz
	# 20080331: pkg_sign has been removed
	OLD_FILES+=usr/sbin/pkg_check
	OLD_FILES+=usr/sbin/pkg_sign
	OLD_FILES+=usr/share/man/man1/pkg_check.1.gz
	OLD_FILES+=usr/share/man/man1/pkg_sign.1.gz
	# 20080314: stack_print(9) mlink fixed
	OLD_FILES+=usr/share/man/man9/stack_printf.9.gz
	# 20080312: libkse removal
	OLD_FILES+=usr/include/sys/kse.h
	OLD_FILES+=usr/lib/libkse.so
	OLD_LIBS+=usr/lib/libkse.so.3
	OLD_FILES+=usr/share/man/man2/kse.2.gz
	OLD_FILES+=usr/share/man/man2/kse_create.2.gz
	OLD_FILES+=usr/share/man/man2/kse_exit.2.gz
	OLD_FILES+=usr/share/man/man2/kse_release.2.gz
	OLD_FILES+=usr/share/man/man2/kse_switchin.2.gz
	OLD_FILES+=usr/share/man/man2/kse_thr_interrupt.2.gz
	OLD_FILES+=usr/share/man/man2/kse_wakeup.2.gz
	OLD_FILES+=usr/lib32/libkse.so
	OLD_LIBS+=usr/lib32/libkse.so.3
	# 20080225: bsdar/bsdranlib rename to ar/ranlib
	OLD_FILES+=usr/bin/bsdar
	OLD_FILES+=usr/bin/bsdranlib
	OLD_FILES+=usr/share/man/man1/bsdar.1.gz
	OLD_FILES+=usr/share/man/man1/bsdranlib.1.gz
	# 20080220: geom_lvm rename to geom_linux_lvm
	OLD_FILES+=usr/share/man/man4/geom_lvm.4.gz
	# 20080126: oldcard.4 removal
	OLD_FILES+=usr/share/man/man4/card.4.gz
	OLD_FILES+=usr/share/man/man4/oldcard.4.gz
	# 20080122: Removed from the tree
	OLD_FILES+=usr/share/man/man9/BUF_REFCNT.9.gz
	# 20080108: Moved to section 2
	OLD_FILES+=usr/share/man/man3/shm_open.3.gz
	OLD_FILES+=usr/share/man/man3/shm_unlink.3.gz
	# 20071207: Merged with fortunes-o.real
	OLD_FILES+=usr/share/games/fortune/fortunes2-o
	OLD_FILES+=usr/share/games/fortune/fortunes2-o.dat
	# 20071201: Removal of XRPU driver
	OLD_FILES+=usr/include/sys/xrpuio.h
	# 20071129: Disabled static versions of libkse by default
	OLD_FILES+=usr/lib/libkse.a
	OLD_FILES+=usr/lib/libkse_p.a
	OLD_FILES+=usr/lib/libkse_pic.a
	OLD_FILES+=usr/lib32/libkse.a
	OLD_FILES+=usr/lib32/libkse_p.a
	OLD_FILES+=usr/lib32/libkse_pic.a
	# 20071129: Removed a Solaris compatibility header
	OLD_FILES+=usr/include/sys/_elf_solaris.h
	# 20071125: Renamed to pmc_get_msr()
	OLD_FILES+=usr/share/man/man3/pmc_x86_get_msr.3.gz
	# 20071108: Removed very crunch OLDCARD support file
	OLD_FILES+=etc/defaults/pccard.conf
	# 20071025: rc.d/nfslocking superseded by rc.d/lockd and rc.d/statd
	OLD_FILES+=etc/rc.d/nfslocking
	# 20070930: rename of cached to nscd
	OLD_FILES+=etc/cached.conf
	OLD_FILES+=etc/rc.d/cached
	OLD_FILES+=usr/sbin/cached
	OLD_FILES+=usr/share/man/man5/cached.conf.5.gz
	OLD_FILES+=usr/share/man/man8/cached.8.gz
	# 20070807: removal of PowerPC specific header file.
	.if ${TARGET_ARCH} == "powerpc"
	OLD_FILES+=usr/include/machine/interruptvar.h
	.endif
	# 20070801: fast_ipsec.4 gone
	OLD_FILES+=usr/share/man/man4/fast_ipsec.4.gz
	# 20070715: netatm temporarily disconnected (removed 20080525)
	OLD_FILES+=rescue/atm
	OLD_FILES+=rescue/fore_dnld
	OLD_FILES+=rescue/ilmid
	OLD_FILES+=sbin/atm
	OLD_FILES+=sbin/fore_dnld
	OLD_FILES+=sbin/ilmid
	OLD_FILES+=usr/include/libatm.h
	OLD_FILES+=usr/include/netatm/atm.h
	OLD_FILES+=usr/include/netatm/atm_cm.h
	OLD_FILES+=usr/include/netatm/atm_if.h
	OLD_FILES+=usr/include/netatm/atm_ioctl.h
	OLD_FILES+=usr/include/netatm/atm_pcb.h
	OLD_FILES+=usr/include/netatm/atm_sap.h
	OLD_FILES+=usr/include/netatm/atm_sigmgr.h
	OLD_FILES+=usr/include/netatm/atm_stack.h
	OLD_FILES+=usr/include/netatm/atm_sys.h
	OLD_FILES+=usr/include/netatm/atm_var.h
	OLD_FILES+=usr/include/netatm/atm_vc.h
	OLD_FILES+=usr/include/netatm/ipatm/ipatm.h
	OLD_FILES+=usr/include/netatm/ipatm/ipatm_serv.h
	OLD_FILES+=usr/include/netatm/ipatm/ipatm_var.h
	OLD_FILES+=usr/include/netatm/port.h
	OLD_FILES+=usr/include/netatm/queue.h
	OLD_FILES+=usr/include/netatm/sigpvc/sigpvc_var.h
	OLD_FILES+=usr/include/netatm/spans/spans_cls.h
	OLD_FILES+=usr/include/netatm/spans/spans_kxdr.h
	OLD_FILES+=usr/include/netatm/spans/spans_var.h
	OLD_FILES+=usr/include/netatm/uni/sscf_uni.h
	OLD_FILES+=usr/include/netatm/uni/sscf_uni_var.h
	OLD_FILES+=usr/include/netatm/uni/sscop.h
	OLD_FILES+=usr/include/netatm/uni/sscop_misc.h
	OLD_FILES+=usr/include/netatm/uni/sscop_pdu.h
	OLD_FILES+=usr/include/netatm/uni/sscop_var.h
	OLD_FILES+=usr/include/netatm/uni/uni.h
	OLD_FILES+=usr/include/netatm/uni/uniip_var.h
	OLD_FILES+=usr/include/netatm/uni/unisig.h
	OLD_FILES+=usr/include/netatm/uni/unisig_decode.h
	OLD_FILES+=usr/include/netatm/uni/unisig_mbuf.h
	OLD_FILES+=usr/include/netatm/uni/unisig_msg.h
	OLD_FILES+=usr/include/netatm/uni/unisig_print.h
	OLD_FILES+=usr/include/netatm/uni/unisig_var.h
	OLD_FILES+=usr/lib/libatm.a
	OLD_FILES+=usr/lib/libatm_p.a
	OLD_FILES+=usr/sbin/atmarpd
	OLD_FILES+=usr/sbin/scspd
	OLD_FILES+=usr/share/man/en.ISO8859-1/man8/atm.8.gz
	OLD_FILES+=usr/share/man/en.ISO8859-1/man8/atmarpd.8.gz
	OLD_FILES+=usr/share/man/en.ISO8859-1/man8/fore_dnld.8.gz
	OLD_FILES+=usr/share/man/en.ISO8859-1/man8/ilmid.8.gz
	OLD_FILES+=usr/share/man/en.ISO8859-1/man8/scspd.8.gz
	OLD_FILES+=usr/share/man/man8/atm.8.gz
	OLD_FILES+=usr/share/man/man8/atmarpd.8.gz
	OLD_FILES+=usr/share/man/man8/fore_dnld.8.gz
	OLD_FILES+=usr/share/man/man8/ilmid.8.gz
	OLD_FILES+=usr/share/man/man8/scspd.8.gz
	OLD_FILES+=usr/share/examples/atm/NOTES
	OLD_FILES+=usr/share/examples/atm/README
	OLD_FILES+=usr/share/examples/atm/Startup
	OLD_FILES+=usr/share/examples/atm/atm-config.sh
	OLD_FILES+=usr/share/examples/atm/atm-sockets.txt
	OLD_FILES+=usr/share/examples/atm/cpcs-design.txt
	OLD_FILES+=usr/share/examples/atm/fore-microcode.txt
	OLD_FILES+=usr/share/examples/atm/sscf-design.txt
	OLD_FILES+=usr/share/examples/atm/sscop-design.txt
	OLD_LIBS+=lib/libatm.so.5
	OLD_LIBS+=usr/lib/libatm.so
	OLD_DIRS+=usr/include/netatm/sigpvc
	OLD_DIRS+=usr/include/netatm/spans
	OLD_DIRS+=usr/include/netatm/ipatm
	OLD_DIRS+=usr/include/netatm/uni
	OLD_DIRS+=usr/include/netatm
	OLD_DIRS+=usr/share/examples/atm
	OLD_FILES+=usr/lib32/libatm.a
	OLD_FILES+=usr/lib32/libatm.so
	OLD_LIBS+=usr/lib32/libatm.so.5
	OLD_FILES+=usr/lib32/libatm_p.a
	# 20070705: I4B headers repo-copied to include/i4b/
	.if ${TARGET_ARCH} == "i386"
	OLD_FILES+=usr/include/machine/i4b_cause.h
	OLD_FILES+=usr/include/machine/i4b_debug.h
	OLD_FILES+=usr/include/machine/i4b_ioctl.h
	OLD_FILES+=usr/include/machine/i4b_rbch_ioctl.h
	OLD_FILES+=usr/include/machine/i4b_tel_ioctl.h
	OLD_FILES+=usr/include/machine/i4b_trace.h
	.endif
	# 20070703: pf 4.1 import
	OLD_FILES+=usr/libexec/ftp-proxy
	# 20070701: KAME IPSec removal
	OLD_FILES+=usr/include/netinet6/ah.h
	OLD_FILES+=usr/include/netinet6/ah6.h
	OLD_FILES+=usr/include/netinet6/ah_aesxcbcmac.h
	OLD_FILES+=usr/include/netinet6/esp.h
	OLD_FILES+=usr/include/netinet6/esp6.h
	OLD_FILES+=usr/include/netinet6/esp_aesctr.h
	OLD_FILES+=usr/include/netinet6/esp_camellia.h
	OLD_FILES+=usr/include/netinet6/esp_rijndael.h
	OLD_FILES+=usr/include/netinet6/ipsec.h
	OLD_FILES+=usr/include/netinet6/ipsec6.h
	OLD_FILES+=usr/include/netinet6/ipcomp.h
	OLD_FILES+=usr/include/netinet6/ipcomp6.h
	OLD_FILES+=usr/include/netkey/key.h
	OLD_FILES+=usr/include/netkey/key_debug.h
	OLD_FILES+=usr/include/netkey/key_var.h
	OLD_FILES+=usr/include/netkey/keydb.h
	OLD_FILES+=usr/include/netkey/keysock.h
	OLD_DIRS+=usr/include/netkey
	# 20070701: remove wicontrol
	OLD_FILES+=usr/sbin/wicontrol
	OLD_FILES+=usr/share/man/man8/wicontrol.8.gz
	# 20070625: umapfs removal
	OLD_FILES+=rescue/mount_umapfs
	OLD_FILES+=sbin/mount_umapfs
	OLD_FILES+=usr/include/fs/umapfs/umap.h
	OLD_FILES+=usr/share/man/man8/mount_umapfs.8.gz
	OLD_DIRS+=usr/include/fs/umapfs
	# 20070618: Removal of the PROTO.localhost* files
	OLD_FILES+=etc/namedb/PROTO.localhost-v6.rev
	OLD_FILES+=etc/namedb/PROTO.localhost.rev
	OLD_FILES+=etc/namedb/make-localhost
	# 20070618: shared library version bump
	OLD_LIBS+=lib/libalias.so.5
	OLD_LIBS+=lib/libbsnmp.so.3
	OLD_LIBS+=lib/libncurses.so.6
	OLD_LIBS+=lib/libncursesw.so.6
	OLD_LIBS+=lib/libreadline.so.6
	OLD_LIBS+=usr/lib/libdialog.so.5
	OLD_LIBS+=usr/lib/libgnuregex.so.3
	OLD_LIBS+=usr/lib/libhistory.so.6
	OLD_LIBS+=usr/lib/libpam.so.3
	OLD_LIBS+=usr/lib/libssh.so.3
	OLD_LIBS+=usr/lib/pam_chroot.so.3
	OLD_LIBS+=usr/lib/pam_deny.so.3
	OLD_LIBS+=usr/lib/pam_echo.so.3
	OLD_LIBS+=usr/lib/pam_exec.so.3
	OLD_LIBS+=usr/lib/pam_ftpusers.so.3
	OLD_LIBS+=usr/lib/pam_group.so.3
	OLD_LIBS+=usr/lib/pam_guest.so.3
	OLD_LIBS+=usr/lib/pam_krb5.so.3
	OLD_LIBS+=usr/lib/pam_ksu.so.3
	OLD_LIBS+=usr/lib/pam_lastlog.so.3
	OLD_LIBS+=usr/lib/pam_login_access.so.3
	OLD_LIBS+=usr/lib/pam_nologin.so.3
	OLD_LIBS+=usr/lib/pam_opie.so.3
	OLD_LIBS+=usr/lib/pam_opieaccess.so.3
	OLD_LIBS+=usr/lib/pam_passwdqc.so.3
	OLD_LIBS+=usr/lib/pam_permit.so.3
	OLD_LIBS+=usr/lib/pam_radius.so.3
	OLD_LIBS+=usr/lib/pam_rhosts.so.3
	OLD_LIBS+=usr/lib/pam_rootok.so.3
	OLD_LIBS+=usr/lib/pam_securetty.so.3
	OLD_LIBS+=usr/lib/pam_self.so.3
	OLD_LIBS+=usr/lib/pam_ssh.so.3
	OLD_LIBS+=usr/lib/pam_tacplus.so.3
	OLD_LIBS+=usr/lib/pam_unix.so.3
	OLD_LIBS+=usr/lib/snmp_atm.so.4
	OLD_LIBS+=usr/lib/snmp_bridge.so.4
	OLD_LIBS+=usr/lib/snmp_hostres.so.4
	OLD_LIBS+=usr/lib/snmp_mibII.so.4
	OLD_LIBS+=usr/lib/snmp_netgraph.so.4
	OLD_LIBS+=usr/lib/snmp_pf.so.4
	OLD_LIBS+=usr/lib32/libalias.so.5
	OLD_LIBS+=usr/lib32/libbsnmp.so.3
	OLD_LIBS+=usr/lib32/libdialog.so.5
	OLD_LIBS+=usr/lib32/libgnuregex.so.3
	OLD_LIBS+=usr/lib32/libhistory.so.6
	OLD_LIBS+=usr/lib32/libncurses.so.6
	OLD_LIBS+=usr/lib32/libncursesw.so.6
	OLD_LIBS+=usr/lib32/libpam.so.3
	OLD_LIBS+=usr/lib32/libreadline.so.6
	OLD_LIBS+=usr/lib32/libssh.so.3
	OLD_LIBS+=usr/lib32/pam_chroot.so.3
	OLD_LIBS+=usr/lib32/pam_deny.so.3
	OLD_LIBS+=usr/lib32/pam_echo.so.3
	OLD_LIBS+=usr/lib32/pam_exec.so.3
	OLD_LIBS+=usr/lib32/pam_ftpusers.so.3
	OLD_LIBS+=usr/lib32/pam_group.so.3
	OLD_LIBS+=usr/lib32/pam_guest.so.3
	OLD_LIBS+=usr/lib32/pam_krb5.so.3
	OLD_LIBS+=usr/lib32/pam_ksu.so.3
	OLD_LIBS+=usr/lib32/pam_lastlog.so.3
	OLD_LIBS+=usr/lib32/pam_login_access.so.3
	OLD_LIBS+=usr/lib32/pam_nologin.so.3
	OLD_LIBS+=usr/lib32/pam_opie.so.3
	OLD_LIBS+=usr/lib32/pam_opieaccess.so.3
	OLD_LIBS+=usr/lib32/pam_passwdqc.so.3
	OLD_LIBS+=usr/lib32/pam_permit.so.3
	OLD_LIBS+=usr/lib32/pam_radius.so.3
	OLD_LIBS+=usr/lib32/pam_rhosts.so.3
	OLD_LIBS+=usr/lib32/pam_rootok.so.3
	OLD_LIBS+=usr/lib32/pam_securetty.so.3
	OLD_LIBS+=usr/lib32/pam_self.so.3
	OLD_LIBS+=usr/lib32/pam_ssh.so.3
	OLD_LIBS+=usr/lib32/pam_tacplus.so.3
	OLD_LIBS+=usr/lib32/pam_unix.so.3
	# 20070613: IPX over IP tunnel removal
	OLD_FILES+=usr/include/netipx/ipx_ip.h
	# 20070605: sched_core removal
	OLD_FILES+=usr/share/man/man4/sched_core.4.gz
	# 20070603: BIND 9.4.1 import
	OLD_LIBS+=usr/lib/liblwres.so.10
	# 20070521: shared library version bump
	OLD_LIBS+=lib/libatm.so.4
	OLD_LIBS+=lib/libbegemot.so.2
	OLD_LIBS+=lib/libbsdxml.so.2
	OLD_LIBS+=lib/libcam.so.3
	OLD_LIBS+=lib/libcrypt.so.3
	OLD_LIBS+=lib/libdevstat.so.5
	OLD_LIBS+=lib/libedit.so.5
	OLD_LIBS+=lib/libgeom.so.3
	OLD_LIBS+=lib/libipsec.so.2
	OLD_LIBS+=lib/libipx.so.3
	OLD_LIBS+=lib/libkiconv.so.2
	OLD_LIBS+=lib/libkse.so.2
	OLD_LIBS+=lib/libkvm.so.3
	OLD_LIBS+=lib/libm.so.4
	OLD_LIBS+=lib/libmd.so.3
	OLD_LIBS+=lib/libpcap.so.4
	OLD_LIBS+=lib/libpthread.so.2
	OLD_LIBS+=lib/libsbuf.so.3
	OLD_LIBS+=lib/libthr.so.2
	OLD_LIBS+=lib/libufs.so.3
	OLD_LIBS+=lib/libutil.so.6
	OLD_LIBS+=lib/libz.so.3
	OLD_LIBS+=usr/lib/libbluetooth.so.2
	OLD_LIBS+=usr/lib/libbsm.so.1
	OLD_LIBS+=usr/lib/libbz2.so.2
	OLD_LIBS+=usr/lib/libcalendar.so.3
	OLD_LIBS+=usr/lib/libcom_err.so.3
	OLD_LIBS+=usr/lib/libdevinfo.so.3
	OLD_LIBS+=usr/lib/libfetch.so.4
	OLD_LIBS+=usr/lib/libform.so.3
	OLD_LIBS+=usr/lib/libformw.so.3
	OLD_LIBS+=usr/lib/libftpio.so.6
	OLD_LIBS+=usr/lib/libgpib.so.1
	OLD_LIBS+=usr/lib/libkse.so.2
	OLD_LIBS+=usr/lib/libmagic.so.2
	OLD_LIBS+=usr/lib/libmemstat.so.1
	OLD_LIBS+=usr/lib/libmenu.so.3
	OLD_LIBS+=usr/lib/libmenuw.so.3
	OLD_LIBS+=usr/lib/libmilter.so.3
	OLD_LIBS+=usr/lib/libmp.so.5
	OLD_LIBS+=usr/lib/libncp.so.2
	OLD_LIBS+=usr/lib/libnetgraph.so.2
	OLD_LIBS+=usr/lib/libngatm.so.2
	OLD_LIBS+=usr/lib/libopie.so.4
	OLD_LIBS+=usr/lib/libpanel.so.3
	OLD_LIBS+=usr/lib/libpanelw.so.3
	OLD_LIBS+=usr/lib/libpmc.so.3
	OLD_LIBS+=usr/lib/libradius.so.2
	OLD_LIBS+=usr/lib/librpcsvc.so.3
	OLD_LIBS+=usr/lib/libsdp.so.2
	OLD_LIBS+=usr/lib/libsmb.so.2
	OLD_LIBS+=usr/lib/libstdc++.so.5
	OLD_LIBS+=usr/lib/libtacplus.so.2
	OLD_LIBS+=usr/lib/libthr.so.2
	OLD_LIBS+=usr/lib/libthread_db.so.2
	OLD_LIBS+=usr/lib/libugidfw.so.2
	OLD_LIBS+=usr/lib/libusbhid.so.2
	OLD_LIBS+=usr/lib/libvgl.so.4
	OLD_LIBS+=usr/lib/libwrap.so.4
	OLD_LIBS+=usr/lib/libypclnt.so.2
	OLD_LIBS+=usr/lib/snmp_bridge.so.3
	OLD_LIBS+=usr/lib/snmp_hostres.so.3
	OLD_LIBS+=usr/lib32/libatm.so.4
	OLD_LIBS+=usr/lib32/libbegemot.so.2
	OLD_LIBS+=usr/lib32/libbluetooth.so.2
	OLD_LIBS+=usr/lib32/libbsdxml.so.2
	OLD_LIBS+=usr/lib32/libbsm.so.1
	OLD_LIBS+=usr/lib32/libbz2.so.2
	OLD_LIBS+=usr/lib32/libcalendar.so.3
	OLD_LIBS+=usr/lib32/libcam.so.3
	OLD_LIBS+=usr/lib32/libcom_err.so.3
	OLD_LIBS+=usr/lib32/libcrypt.so.3
	OLD_LIBS+=usr/lib32/libdevinfo.so.3
	OLD_LIBS+=usr/lib32/libdevstat.so.5
	OLD_LIBS+=usr/lib32/libedit.so.5
	OLD_LIBS+=usr/lib32/libfetch.so.4
	OLD_LIBS+=usr/lib32/libform.so.3
	OLD_LIBS+=usr/lib32/libformw.so.3
	OLD_LIBS+=usr/lib32/libftpio.so.6
	OLD_LIBS+=usr/lib32/libgeom.so.3
	OLD_LIBS+=usr/lib32/libgpib.so.1
	OLD_LIBS+=usr/lib32/libipsec.so.2
	OLD_LIBS+=usr/lib32/libipx.so.3
	OLD_LIBS+=usr/lib32/libkiconv.so.2
	OLD_LIBS+=usr/lib32/libkse.so.2
	OLD_LIBS+=usr/lib32/libkvm.so.3
	OLD_LIBS+=usr/lib32/libm.so.4
	OLD_LIBS+=usr/lib32/libmagic.so.2
	OLD_LIBS+=usr/lib32/libmd.so.3
	OLD_LIBS+=usr/lib32/libmemstat.so.1
	OLD_LIBS+=usr/lib32/libmenu.so.3
	OLD_LIBS+=usr/lib32/libmenuw.so.3
	OLD_LIBS+=usr/lib32/libmilter.so.3
	OLD_LIBS+=usr/lib32/libmp.so.5
	OLD_LIBS+=usr/lib32/libncp.so.2
	OLD_LIBS+=usr/lib32/libnetgraph.so.2
	OLD_LIBS+=usr/lib32/libngatm.so.2
	OLD_LIBS+=usr/lib32/libopie.so.4
	OLD_LIBS+=usr/lib32/libpanel.so.3
	OLD_LIBS+=usr/lib32/libpanelw.so.3
	OLD_LIBS+=usr/lib32/libpcap.so.4
	OLD_LIBS+=usr/lib32/libpmc.so.3
	OLD_LIBS+=usr/lib32/libpthread.so.2
	OLD_LIBS+=usr/lib32/libradius.so.2
	OLD_LIBS+=usr/lib32/librpcsvc.so.3
	OLD_LIBS+=usr/lib32/libsbuf.so.3
	OLD_LIBS+=usr/lib32/libsdp.so.2
	OLD_LIBS+=usr/lib32/libsmb.so.2
	OLD_LIBS+=usr/lib32/libstdc++.so.5
	OLD_LIBS+=usr/lib32/libtacplus.so.2
	OLD_LIBS+=usr/lib32/libthr.so.2
	OLD_LIBS+=usr/lib32/libthread_db.so.2
	OLD_LIBS+=usr/lib32/libufs.so.3
	OLD_LIBS+=usr/lib32/libugidfw.so.2
	OLD_LIBS+=usr/lib32/libusbhid.so.2
	OLD_LIBS+=usr/lib32/libutil.so.6
	OLD_LIBS+=usr/lib32/libvgl.so.4
	OLD_LIBS+=usr/lib32/libwrap.so.4
	OLD_LIBS+=usr/lib32/libypclnt.so.2
	OLD_LIBS+=usr/lib32/libz.so.3
	# 20070519: GCC 4.2
	OLD_FILES+=usr/bin/f77
	OLD_FILES+=usr/bin/protoize
	OLD_FILES+=usr/include/g2c.h
	OLD_FILES+=usr/libexec/f771
	OLD_FILES+=usr/share/info/g77.info.gz
	OLD_FILES+=usr/share/man/man1/f77.1.gz
	OLD_FILES+=usr/include/c++/3.4/algorithm
	OLD_FILES+=usr/include/c++/3.4/backward/algo.h
	OLD_FILES+=usr/include/c++/3.4/backward/algobase.h
	OLD_FILES+=usr/include/c++/3.4/backward/alloc.h
	OLD_FILES+=usr/include/c++/3.4/backward/backward_warning.h
	OLD_FILES+=usr/include/c++/3.4/backward/bvector.h
	OLD_FILES+=usr/include/c++/3.4/backward/complex.h
	OLD_FILES+=usr/include/c++/3.4/backward/defalloc.h
	OLD_FILES+=usr/include/c++/3.4/backward/deque.h
	OLD_FILES+=usr/include/c++/3.4/backward/fstream.h
	OLD_FILES+=usr/include/c++/3.4/backward/function.h
	OLD_FILES+=usr/include/c++/3.4/backward/hash_map.h
	OLD_FILES+=usr/include/c++/3.4/backward/hash_set.h
	OLD_FILES+=usr/include/c++/3.4/backward/hashtable.h
	OLD_FILES+=usr/include/c++/3.4/backward/heap.h
	OLD_FILES+=usr/include/c++/3.4/backward/iomanip.h
	OLD_FILES+=usr/include/c++/3.4/backward/iostream.h
	OLD_FILES+=usr/include/c++/3.4/backward/istream.h
	OLD_FILES+=usr/include/c++/3.4/backward/iterator.h
	OLD_FILES+=usr/include/c++/3.4/backward/list.h
	OLD_FILES+=usr/include/c++/3.4/backward/map.h
	OLD_FILES+=usr/include/c++/3.4/backward/multimap.h
	OLD_FILES+=usr/include/c++/3.4/backward/multiset.h
	OLD_FILES+=usr/include/c++/3.4/backward/new.h
	OLD_FILES+=usr/include/c++/3.4/backward/ostream.h
	OLD_FILES+=usr/include/c++/3.4/backward/pair.h
	OLD_FILES+=usr/include/c++/3.4/backward/queue.h
	OLD_FILES+=usr/include/c++/3.4/backward/rope.h
	OLD_FILES+=usr/include/c++/3.4/backward/set.h
	OLD_FILES+=usr/include/c++/3.4/backward/slist.h
	OLD_FILES+=usr/include/c++/3.4/backward/stack.h
	OLD_FILES+=usr/include/c++/3.4/backward/stream.h
	OLD_FILES+=usr/include/c++/3.4/backward/streambuf.h
	OLD_FILES+=usr/include/c++/3.4/backward/strstream
	OLD_FILES+=usr/include/c++/3.4/backward/tempbuf.h
	OLD_FILES+=usr/include/c++/3.4/backward/tree.h
	OLD_FILES+=usr/include/c++/3.4/backward/vector.h
	OLD_FILES+=usr/include/c++/3.4/bits/allocator.h
	OLD_FILES+=usr/include/c++/3.4/bits/atomic_word.h
	OLD_FILES+=usr/include/c++/3.4/bits/atomicity.h
	OLD_FILES+=usr/include/c++/3.4/bits/basic_file.h
	OLD_FILES+=usr/include/c++/3.4/bits/basic_ios.h
	OLD_FILES+=usr/include/c++/3.4/bits/basic_ios.tcc
	OLD_FILES+=usr/include/c++/3.4/bits/basic_string.h
	OLD_FILES+=usr/include/c++/3.4/bits/basic_string.tcc
	OLD_FILES+=usr/include/c++/3.4/bits/boost_concept_check.h
	OLD_FILES+=usr/include/c++/3.4/bits/c++allocator.h
	OLD_FILES+=usr/include/c++/3.4/bits/c++config.h
	OLD_FILES+=usr/include/c++/3.4/bits/c++io.h
	OLD_FILES+=usr/include/c++/3.4/bits/c++locale.h
	OLD_FILES+=usr/include/c++/3.4/bits/c++locale_internal.h
	OLD_FILES+=usr/include/c++/3.4/bits/char_traits.h
	OLD_FILES+=usr/include/c++/3.4/bits/cmath.tcc
	OLD_FILES+=usr/include/c++/3.4/bits/codecvt.h
	OLD_FILES+=usr/include/c++/3.4/bits/codecvt_specializations.h
	OLD_FILES+=usr/include/c++/3.4/bits/concept_check.h
	OLD_FILES+=usr/include/c++/3.4/bits/concurrence.h
	OLD_FILES+=usr/include/c++/3.4/bits/cpp_type_traits.h
	OLD_FILES+=usr/include/c++/3.4/bits/ctype_base.h
	OLD_FILES+=usr/include/c++/3.4/bits/ctype_inline.h
	OLD_FILES+=usr/include/c++/3.4/bits/ctype_noninline.h
	OLD_FILES+=usr/include/c++/3.4/bits/deque.tcc
	OLD_FILES+=usr/include/c++/3.4/bits/fstream.tcc
	OLD_FILES+=usr/include/c++/3.4/bits/functexcept.h
	OLD_FILES+=usr/include/c++/3.4/bits/gslice.h
	OLD_FILES+=usr/include/c++/3.4/bits/gslice_array.h
	OLD_FILES+=usr/include/c++/3.4/bits/gthr-default.h
	OLD_FILES+=usr/include/c++/3.4/bits/gthr-posix.h
	OLD_FILES+=usr/include/c++/3.4/bits/gthr-single.h
	OLD_FILES+=usr/include/c++/3.4/bits/gthr.h
	OLD_FILES+=usr/include/c++/3.4/bits/indirect_array.h
	OLD_FILES+=usr/include/c++/3.4/bits/ios_base.h
	OLD_FILES+=usr/include/c++/3.4/bits/istream.tcc
	OLD_FILES+=usr/include/c++/3.4/bits/list.tcc
	OLD_FILES+=usr/include/c++/3.4/bits/locale_classes.h
	OLD_FILES+=usr/include/c++/3.4/bits/locale_facets.h
	OLD_FILES+=usr/include/c++/3.4/bits/locale_facets.tcc
	OLD_FILES+=usr/include/c++/3.4/bits/localefwd.h
	OLD_FILES+=usr/include/c++/3.4/bits/mask_array.h
	OLD_FILES+=usr/include/c++/3.4/bits/messages_members.h
	OLD_FILES+=usr/include/c++/3.4/bits/os_defines.h
	OLD_FILES+=usr/include/c++/3.4/bits/ostream.tcc
	OLD_FILES+=usr/include/c++/3.4/bits/postypes.h
	OLD_FILES+=usr/include/c++/3.4/bits/slice_array.h
	OLD_FILES+=usr/include/c++/3.4/bits/sstream.tcc
	OLD_FILES+=usr/include/c++/3.4/bits/stl_algo.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_algobase.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_bvector.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_construct.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_deque.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_function.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_heap.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_iterator.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_iterator_base_funcs.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_iterator_base_types.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_list.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_map.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_multimap.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_multiset.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_numeric.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_pair.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_queue.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_raw_storage_iter.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_relops.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_set.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_stack.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_tempbuf.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_threads.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_tree.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_uninitialized.h
	OLD_FILES+=usr/include/c++/3.4/bits/stl_vector.h
	OLD_FILES+=usr/include/c++/3.4/bits/stream_iterator.h
	OLD_FILES+=usr/include/c++/3.4/bits/streambuf.tcc
	OLD_FILES+=usr/include/c++/3.4/bits/streambuf_iterator.h
	OLD_FILES+=usr/include/c++/3.4/bits/stringfwd.h
	OLD_FILES+=usr/include/c++/3.4/bits/time_members.h
	OLD_FILES+=usr/include/c++/3.4/bits/type_traits.h
	OLD_FILES+=usr/include/c++/3.4/bits/valarray_after.h
	OLD_FILES+=usr/include/c++/3.4/bits/valarray_array.h
	OLD_FILES+=usr/include/c++/3.4/bits/valarray_array.tcc
	OLD_FILES+=usr/include/c++/3.4/bits/valarray_before.h
	OLD_FILES+=usr/include/c++/3.4/bits/vector.tcc
	OLD_FILES+=usr/include/c++/3.4/bitset
	OLD_FILES+=usr/include/c++/3.4/cassert
	OLD_FILES+=usr/include/c++/3.4/cctype
	OLD_FILES+=usr/include/c++/3.4/cerrno
	OLD_FILES+=usr/include/c++/3.4/cfloat
	OLD_FILES+=usr/include/c++/3.4/ciso646
	OLD_FILES+=usr/include/c++/3.4/climits
	OLD_FILES+=usr/include/c++/3.4/clocale
	OLD_FILES+=usr/include/c++/3.4/cmath
	OLD_FILES+=usr/include/c++/3.4/complex
	OLD_FILES+=usr/include/c++/3.4/csetjmp
	OLD_FILES+=usr/include/c++/3.4/csignal
	OLD_FILES+=usr/include/c++/3.4/cstdarg
	OLD_FILES+=usr/include/c++/3.4/cstddef
	OLD_FILES+=usr/include/c++/3.4/cstdio
	OLD_FILES+=usr/include/c++/3.4/cstdlib
	OLD_FILES+=usr/include/c++/3.4/cstring
	OLD_FILES+=usr/include/c++/3.4/ctime
	OLD_FILES+=usr/include/c++/3.4/cwchar
	OLD_FILES+=usr/include/c++/3.4/cwctype
	OLD_FILES+=usr/include/c++/3.4/cxxabi.h
	OLD_FILES+=usr/include/c++/3.4/debug/bitset
	OLD_FILES+=usr/include/c++/3.4/debug/debug.h
	OLD_FILES+=usr/include/c++/3.4/debug/deque
	OLD_FILES+=usr/include/c++/3.4/debug/formatter.h
	OLD_FILES+=usr/include/c++/3.4/debug/hash_map
	OLD_FILES+=usr/include/c++/3.4/debug/hash_map.h
	OLD_FILES+=usr/include/c++/3.4/debug/hash_multimap.h
	OLD_FILES+=usr/include/c++/3.4/debug/hash_multiset.h
	OLD_FILES+=usr/include/c++/3.4/debug/hash_set
	OLD_FILES+=usr/include/c++/3.4/debug/hash_set.h
	OLD_FILES+=usr/include/c++/3.4/debug/list
	OLD_FILES+=usr/include/c++/3.4/debug/map
	OLD_FILES+=usr/include/c++/3.4/debug/map.h
	OLD_FILES+=usr/include/c++/3.4/debug/multimap.h
	OLD_FILES+=usr/include/c++/3.4/debug/multiset.h
	OLD_FILES+=usr/include/c++/3.4/debug/safe_base.h
	OLD_FILES+=usr/include/c++/3.4/debug/safe_iterator.h
	OLD_FILES+=usr/include/c++/3.4/debug/safe_iterator.tcc
	OLD_FILES+=usr/include/c++/3.4/debug/safe_sequence.h
	OLD_FILES+=usr/include/c++/3.4/debug/set
	OLD_FILES+=usr/include/c++/3.4/debug/set.h
	OLD_FILES+=usr/include/c++/3.4/debug/string
	OLD_FILES+=usr/include/c++/3.4/debug/vector
	OLD_FILES+=usr/include/c++/3.4/deque
	OLD_FILES+=usr/include/c++/3.4/exception
	OLD_FILES+=usr/include/c++/3.4/exception_defines.h
	OLD_FILES+=usr/include/c++/3.4/ext/algorithm
	OLD_FILES+=usr/include/c++/3.4/ext/bitmap_allocator.h
	OLD_FILES+=usr/include/c++/3.4/ext/debug_allocator.h
	OLD_FILES+=usr/include/c++/3.4/ext/enc_filebuf.h
	OLD_FILES+=usr/include/c++/3.4/ext/functional
	OLD_FILES+=usr/include/c++/3.4/ext/hash_fun.h
	OLD_FILES+=usr/include/c++/3.4/ext/hash_map
	OLD_FILES+=usr/include/c++/3.4/ext/hash_set
	OLD_FILES+=usr/include/c++/3.4/ext/hashtable.h
	OLD_FILES+=usr/include/c++/3.4/ext/iterator
	OLD_FILES+=usr/include/c++/3.4/ext/malloc_allocator.h
	OLD_FILES+=usr/include/c++/3.4/ext/memory
	OLD_FILES+=usr/include/c++/3.4/ext/mt_allocator.h
	OLD_FILES+=usr/include/c++/3.4/ext/new_allocator.h
	OLD_FILES+=usr/include/c++/3.4/ext/numeric
	OLD_FILES+=usr/include/c++/3.4/ext/pod_char_traits.h
	OLD_FILES+=usr/include/c++/3.4/ext/pool_allocator.h
	OLD_FILES+=usr/include/c++/3.4/ext/rb_tree
	OLD_FILES+=usr/include/c++/3.4/ext/rope
	OLD_FILES+=usr/include/c++/3.4/ext/ropeimpl.h
	OLD_FILES+=usr/include/c++/3.4/ext/slist
	OLD_FILES+=usr/include/c++/3.4/ext/stdio_filebuf.h
	OLD_FILES+=usr/include/c++/3.4/ext/stdio_sync_filebuf.h
	OLD_FILES+=usr/include/c++/3.4/fstream
	OLD_FILES+=usr/include/c++/3.4/functional
	OLD_FILES+=usr/include/c++/3.4/iomanip
	OLD_FILES+=usr/include/c++/3.4/ios
	OLD_FILES+=usr/include/c++/3.4/iosfwd
	OLD_FILES+=usr/include/c++/3.4/iostream
	OLD_FILES+=usr/include/c++/3.4/istream
	OLD_FILES+=usr/include/c++/3.4/iterator
	OLD_FILES+=usr/include/c++/3.4/limits
	OLD_FILES+=usr/include/c++/3.4/list
	OLD_FILES+=usr/include/c++/3.4/locale
	OLD_FILES+=usr/include/c++/3.4/map
	OLD_FILES+=usr/include/c++/3.4/memory
	OLD_FILES+=usr/include/c++/3.4/new
	OLD_FILES+=usr/include/c++/3.4/numeric
	OLD_FILES+=usr/include/c++/3.4/ostream
	OLD_FILES+=usr/include/c++/3.4/queue
	OLD_FILES+=usr/include/c++/3.4/set
	OLD_FILES+=usr/include/c++/3.4/sstream
	OLD_FILES+=usr/include/c++/3.4/stack
	OLD_FILES+=usr/include/c++/3.4/stdexcept
	OLD_FILES+=usr/include/c++/3.4/streambuf
	OLD_FILES+=usr/include/c++/3.4/string
	OLD_FILES+=usr/include/c++/3.4/typeinfo
	OLD_FILES+=usr/include/c++/3.4/utility
	OLD_FILES+=usr/include/c++/3.4/valarray
	OLD_FILES+=usr/include/c++/3.4/vector
	OLD_DIRS+=usr/include/c++/3.4/backward
	OLD_DIRS+=usr/include/c++/3.4/bits
	OLD_DIRS+=usr/include/c++/3.4/debug
	OLD_DIRS+=usr/include/c++/3.4/ext
	OLD_DIRS+=usr/include/c++/3.4
	# 20070510: zpool/zfs moved to /sbin
	OLD_FILES+=usr/sbin/zfs
	OLD_FILES+=usr/sbin/zpool
	# 20070423: rc.bluetooth (examples) removed
	OLD_FILES+=usr/share/examples/netgraph/bluetooth/rc.bluetooth
	OLD_DIRS+=usr/share/examples/netgraph/bluetooth
	# 20070421: worm.4 removed
	OLD_FILES+=usr/share/man/man4/worm.4.gz
	# 20070417: trunk(4) renamed to lagg(4)
	OLD_FILES+=usr/include/net/if_trunk.h
	# 20070409: uuidgen moved to /bin/
	OLD_FILES+=usr/bin/uuidgen
	# 20070328: bzip2 1.0.4
	OLD_FILES+=usr/share/info/bzip2.info.gz
	# 20070303: libarchive 2.0
	OLD_LIBS+=usr/lib/libarchive.so.3
	OLD_LIBS+=usr/lib32/libarchive.so.3
	# 20070301: remove addr2ascii and ascii2addr
	OLD_FILES+=usr/share/man/man3/addr2ascii.3.gz
	OLD_FILES+=usr/share/man/man3/ascii2addr.3.gz
	# 20070225: vm_page_unmanage() removed
	OLD_FILES+=usr/share/man/man9/vm_page_unmanage.9.gz
	# 20070216: VFS_VPTOFH(9) -> VOP_VPTOFH(9)
	OLD_FILES+=usr/share/man/man9/VFS_VPTOFH.9.gz
	# 20070212: kame.4 removed
	OLD_FILES+=usr/share/man/man4/kame.4.gz
	# 20070201: remove libmytinfo link
	OLD_FILES+=usr/lib/libmytinfo.a
	OLD_FILES+=usr/lib/libmytinfo.so
	OLD_FILES+=usr/lib/libmytinfo_p.a
	OLD_FILES+=usr/lib/libmytinfow.a
	OLD_FILES+=usr/lib/libmytinfow.so
	OLD_FILES+=usr/lib/libmytinfow_p.a
	OLD_FILES+=usr/lib32/libmytinfo.a
	OLD_FILES+=usr/lib32/libmytinfo.so
	OLD_FILES+=usr/lib32/libmytinfo_p.a
	OLD_FILES+=usr/lib32/libmytinfow.a
	OLD_FILES+=usr/lib32/libmytinfow.so
	OLD_FILES+=usr/lib32/libmytinfow_p.a
	# 20070128: remove vnconfig
	OLD_FILES+=usr/sbin/vnconfig
	# 20070127: remove bpf_compat.h
	OLD_FILES+=usr/include/net/bpf_compat.h
	# 20070125: objformat bites the dust
	OLD_FILES+=usr/bin/objformat
	OLD_FILES+=usr/share/man/man1/objformat.1.gz
	OLD_FILES+=usr/include/objformat.h
	OLD_FILES+=usr/share/man/man3/getobjformat.3.gz
	# 20061201: remove symlink to *.so.4 libalias modules
	OLD_FILES+=usr/lib/libalias_cuseeme.so
	OLD_FILES+=usr/lib/libalias_dummy.so
	OLD_FILES+=usr/lib/libalias_ftp.so
	OLD_FILES+=usr/lib/libalias_irc.so
	OLD_FILES+=usr/lib/libalias_nbt.so
	OLD_FILES+=usr/lib/libalias_pptp.so
	OLD_FILES+=usr/lib/libalias_skinny.so
	OLD_FILES+=usr/lib/libalias_smedia.so
	# 20061201: remove old *.so.4 libalias modules
	OLD_LIBS+=lib/libalias_cuseeme.so.4
	OLD_LIBS+=lib/libalias_dummy.so.4
	OLD_LIBS+=lib/libalias_ftp.so.4
	OLD_LIBS+=lib/libalias_irc.so.4
	OLD_LIBS+=lib/libalias_nbt.so.4
	OLD_LIBS+=lib/libalias_pptp.so.4
	OLD_LIBS+=lib/libalias_skinny.so.4
	OLD_LIBS+=lib/libalias_smedia.so.4
	# 20061126: remove old man page
	OLD_FILES+=usr/share/man/man3/archive_read_set_bytes_per_block.3.gz
	# 20061125: remove old man page
	OLD_FILES+=usr/share/man/man9/devsw.9.gz
	# 20061122: remove obsolete mount programs
	OLD_FILES+=sbin/mount_devfs
	OLD_FILES+=sbin/mount_ext2fs
	OLD_FILES+=sbin/mount_fdescfs
	OLD_FILES+=sbin/mount_linprocfs
	OLD_FILES+=sbin/mount_procfs
	OLD_FILES+=sbin/mount_std
	OLD_FILES+=rescue/mount_devfs
	OLD_FILES+=rescue/mount_ext2fs
	OLD_FILES+=rescue/mount_fdescfs
	OLD_FILES+=rescue/mount_linprocfs
	OLD_FILES+=rescue/mount_procfs
	OLD_FILES+=rescue/mount_std
	OLD_FILES+=usr/share/man/man8/mount_devfs.8.gz
	OLD_FILES+=usr/share/man/man8/mount_ext2fs.8.gz
	OLD_FILES+=usr/share/man/man8/mount_fdescfs.8.gz
	OLD_FILES+=usr/share/man/man8/mount_linprocfs.8.gz
	OLD_FILES+=usr/share/man/man8/mount_procfs.8.gz
	OLD_FILES+=usr/share/man/man8/mount_std.8.gz
	# 20061116: uhidev.4 removed
	OLD_FILES+=usr/share/man/man4/uhidev.4.gz
	# 20061106: archive_write_prepare.3 removed
	OLD_FILES+=usr/share/man/man3/archive_write_prepare.3.gz
	# 20061018: pccardc removed
	OLD_FILES+=usr/sbin/pccardc usr/share/man/man8/pccardc.8.gz
	# 20060930: demangle.h from contrib/libstdc++/include/ext/
	OLD_FILES+=usr/include/c++/3.4/ext/demangle.h
	# 20060929: mrouted removed
	OLD_FILES+=usr/sbin/map-mbone
	OLD_FILES+=usr/sbin/mrinfo
	OLD_FILES+=usr/sbin/mrouted
	OLD_FILES+=usr/sbin/mtrace
	OLD_FILES+=usr/share/man/man8/map-mbone.8.gz
	OLD_FILES+=usr/share/man/man8/mrinfo.8.gz
	OLD_FILES+=usr/share/man/man8/mrouted.8.gz
	OLD_FILES+=usr/share/man/man8/mtrace.8.gz
	# 20060924: tcpslice removed
	OLD_FILES+=usr/sbin/tcpslice
	OLD_FILES+=usr/share/man/man1/tcpslice.1.gz
	# 20060829: kvmdb cleanup script removed
	OLD_FILES+=etc/periodic/weekly/120.clean-kvmdb
	# 20060822: ramdisk{,-own} have been replaced by mdconfig{,2}
	OLD_FILES+=etc/rc.d/ramdisk
	OLD_FILES+=etc/rc.d/ramdisk-own
	# 20060729: OpenSSL 0.9.7e -> 0.9.8b upgrade
	OLD_FILES+=usr/include/openssl/eng_int.h
	OLD_FILES+=usr/include/openssl/hw_4758_cca_err.h
	OLD_FILES+=usr/include/openssl/hw_aep_err.h
	OLD_FILES+=usr/include/openssl/hw_atalla_err.h
	OLD_FILES+=usr/include/openssl/hw_cswift_err.h
	OLD_FILES+=usr/include/openssl/hw_ncipher_err.h
	OLD_FILES+=usr/include/openssl/hw_nuron_err.h
	OLD_FILES+=usr/include/openssl/hw_sureware_err.h
	OLD_FILES+=usr/include/openssl/hw_ubsec_err.h
	# 20060713: mount_linsysfs(8) never existed in 7.x
	OLD_FILES+=sbin/mount_linsysfs
	OLD_FILES+=usr/share/man/man8/mount_linsysfs.8.gz
	# 20060704: KAME compat file net_osdep.h removed
	OLD_FILES+=usr/include/net/net_osdep.h
	# 20060605: man page links removed by OpenBSM 1.0 alpha 6 import
	OLD_FILES+=usr/share/man/man3/au_to_socket.3.gz
	OLD_FILES+=usr/share/man/man3/au_to_socket_ex_128.3.gz
	OLD_FILES+=usr/share/man/man3/au_to_socket_ex_32.3.gz
	# 20060517: pcvt removed
	OLD_FILES+=usr/share/pcvt/README.FIRST
	OLD_FILES+=usr/share/pcvt/Etc/xmodmap-german
	OLD_FILES+=usr/share/pcvt/Etc/pcvt.sh
	OLD_FILES+=usr/share/pcvt/Etc/pcvt.el
	OLD_FILES+=usr/share/pcvt/Etc/Terminfo
	OLD_FILES+=usr/share/pcvt/Etc/Termcap
	OLD_DIRS+=usr/share/pcvt/Etc
	OLD_FILES+=usr/share/pcvt/Doc/NotesAndHints
	OLD_FILES+=usr/share/pcvt/Doc/Keyboard.VT
	OLD_FILES+=usr/share/pcvt/Doc/Keyboard.HP
	OLD_FILES+=usr/share/pcvt/Doc/EscapeSequences
	OLD_FILES+=usr/share/pcvt/Doc/Charsets
	OLD_FILES+=usr/share/pcvt/Doc/CharGen
	OLD_FILES+=usr/share/pcvt/Doc/Bibliography
	OLD_FILES+=usr/share/pcvt/Doc/Acknowledgements
	OLD_DIRS+=usr/share/pcvt/Doc
	OLD_DIRS+=usr/share/pcvt
	OLD_FILES+=usr/share/misc/pcvtfonts/vt220l.816
	OLD_FILES+=usr/share/misc/pcvtfonts/vt220l.814
	OLD_FILES+=usr/share/misc/pcvtfonts/vt220l.810
	OLD_FILES+=usr/share/misc/pcvtfonts/vt220l.808
	OLD_FILES+=usr/share/misc/pcvtfonts/vt220h.816
	OLD_FILES+=usr/share/misc/pcvtfonts/vt220h.814
	OLD_FILES+=usr/share/misc/pcvtfonts/vt220h.810
	OLD_FILES+=usr/share/misc/pcvtfonts/vt220h.808
	OLD_DIRS+=usr/share/misc/pcvtfonts
	OLD_FILES+=usr/share/misc/keycap.pcvt
	OLD_FILES+=usr/share/man/man8/ispcvt.8.gz
	OLD_FILES+=usr/share/man/man5/keycap.5.gz
	OLD_FILES+=usr/share/man/man4/pcvt.4.gz
	OLD_FILES+=usr/share/man/man3/kgetstr.3.gz
	OLD_FILES+=usr/share/man/man3/kgetnum.3.gz
	OLD_FILES+=usr/share/man/man3/kgetflag.3.gz
	OLD_FILES+=usr/share/man/man3/kgetent.3.gz
	OLD_FILES+=usr/share/man/man3/keycap.3.gz
	OLD_FILES+=usr/share/man/man1/vt220keys.1.gz
	OLD_FILES+=usr/share/man/man1/scon.1.gz
	OLD_FILES+=usr/share/man/man1/loadfont.1.gz
	OLD_FILES+=usr/share/man/man1/kcon.1.gz
	OLD_FILES+=usr/share/man/man1/fontedit.1.gz
	OLD_FILES+=usr/share/man/man1/cursor.1.gz
	OLD_FILES+=usr/sbin/vt220keys
	OLD_FILES+=usr/sbin/scon
	OLD_FILES+=usr/sbin/loadfont
	OLD_FILES+=usr/sbin/kcon
	OLD_FILES+=usr/sbin/ispcvt
	OLD_FILES+=usr/sbin/fontedit
	OLD_FILES+=usr/sbin/cursor
	OLD_FILES+=usr/lib/libkeycap_p.a
	OLD_FILES+=usr/lib/libkeycap.a
	OLD_FILES+=usr/include/machine/pcvt_ioctl.h
	# 20060514: lnc(4) replaced by le(4)
	OLD_FILES+=usr/share/man/man4/i386/lnc.4.gz
	# 20060512: remove ip6fw
	OLD_FILES+=etc/periodic/security/600.ip6fwdenied
	OLD_FILES+=etc/periodic/security/650.ip6fwlimit
	OLD_FILES+=sbin/ip6fw
	OLD_FILES+=usr/include/netinet6/ip6_fw.h
	OLD_FILES+=usr/share/man/man8/ip6fw.8.gz
	# 20060424: sab(4) removed
	OLD_FILES+=usr/share/man/man4/sab.4.gz
	# 20060328: remove redundant rc.d script
	OLD_FILES+=etc/rc.d/ike
	# 20060127: revert libdisk to static-only
	OLD_FILES+=usr/lib/libdisk.so
	# 20060115: sys/pccard includes cleanup
	OLD_FILES+=usr/include/pccard/driver.h
	OLD_FILES+=usr/include/pccard/i82365.h
	OLD_FILES+=usr/include/pccard/meciareg.h
	OLD_FILES+=usr/include/pccard/pccard_nbk.h
	OLD_FILES+=usr/include/pccard/pcic_pci.h
	OLD_FILES+=usr/include/pccard/pcicvar.h
	OLD_FILES+=usr/include/pccard/slot.h
	# 20051215: rescue/nextboot.sh renamed to rescue/nextboot
	OLD_FILES+=rescue/nextboot.sh
	# 20051214: usbd(8) removed
	OLD_FILES+=etc/rc.d/usbd
	OLD_FILES+=etc/usbd.conf
	OLD_FILES+=usr/sbin/usbd
	OLD_FILES+=usr/share/man/man8/usbd.8.gz
	# 20051029: rc.d/ppp-user renamed to rc.d/ppp for convenience
	OLD_FILES+=etc/rc.d/ppp-user
	# 20051012: setkey(8) moved to /sbin/
	OLD_FILES+=usr/sbin/setkey
	# 20050930: pccardd(8) removed
	OLD_FILES+=usr/sbin/pccardd
	OLD_FILES+=usr/share/man/man5/pccard.conf.5.gz
	OLD_FILES+=usr/share/man/man8/pccardd.8.gz
	# 20050927: bridge(4) replaced by if_bridge(4)
	OLD_FILES+=usr/include/net/bridge.h
	# 20050831: not implemented
	OLD_FILES+=usr/share/man/man3/getino.3.gz
	OLD_FILES+=usr/share/man/man3/putino.3.gz
	# 20050825: T/TCP retired several months ago
	OLD_FILES+=usr/share/man/man4/ttcp.4.gz
	# 20050805 tn3270 retired long ago
	OLD_FILES+=usr/share/misc/map3270
	# 20050801: too old to be interesting here
	OLD_FILES+=usr/share/doc/papers/px.ps.gz
	# 20050721: moved to ports
	OLD_FILES+=usr/sbin/vttest
	OLD_FILES+=usr/share/man/man1/vttest.1.gz
	# 20050617: wpa man pages moved to section 8
	OLD_FILES+=usr/share/man/man1/hostapd.1.gz
	OLD_FILES+=usr/share/man/man1/hostapd_cli.1.gz
	OLD_FILES+=usr/share/man/man1/wpa_cli.1.gz
	OLD_FILES+=usr/share/man/man1/wpa_supplicant.1.gz
	# 20050610: rexecd (insecure by design)
	OLD_FILES+=etc/pam.d/rexecd
	OLD_FILES+=usr/share/man/man8/rexecd.8.gz
	OLD_FILES+=usr/libexec/rexecd
	# 20050606: OpenBSD dhclient replaces ISC one
	OLD_FILES+=bin/omshell
	OLD_FILES+=sbin/omshell
	OLD_FILES+=usr/share/man/man1/omshell.1.gz
	OLD_FILES+=usr/share/man/man5/dhcp-eval.5.gz
	# 200504XX: ipf tools moved from /usr to /
	OLD_FILES+=rescue/ipfs
	OLD_FILES+=rescue/ipfstat
	OLD_FILES+=rescue/ipmon
	OLD_FILES+=rescue/ipnat
	OLD_FILES+=usr/sbin/ipftest
	OLD_FILES+=usr/sbin/ipresend
	OLD_FILES+=usr/sbin/ipsend
	OLD_FILES+=usr/sbin/iptest
	OLD_FILES+=usr/share/man/man1/ipnat.1.gz
	OLD_FILES+=usr/share/man/man1/ipsend.1.gz
	OLD_FILES+=usr/share/man/man1/iptest.1.gz
	OLD_FILES+=usr/share/man/man5/ipsend.5.gz
	# 200503XX: bsdtar takes over gtar
	OLD_FILES+=usr/bin/gtar
	OLD_FILES+=usr/share/man/man1/gtar.1.gz
	# 200503XX
	OLD_FILES+=usr/share/man/man3/exp10.3.gz
	OLD_FILES+=usr/share/man/man3/exp10f.3.gz
	OLD_FILES+=usr/share/man/man3/fpsetsticky.3.gz
	# 20050324: updated release infrastructure
	OLD_FILES+=usr/share/man/man5/drivers.conf.5.gz
	# 20050317: removed from BIND 9 distribution
	OLD_FILES+=usr/share/doc/bind9/KNOWN_DEFECTS
	# 2005XXXX:
	OLD_FILES+=sbin/mount_autofs
	OLD_FILES+=usr/lib/libautofs.a
	OLD_FILES+=usr/lib/libautofs.so
	OLD_FILES+=usr/share/man/man8/mount_autofs.8.gz
	# 20050203: Merged with fortunes
	OLD_FILES+=usr/share/games/fortune/fortunes2
	OLD_FILES+=usr/share/games/fortune/fortunes2.dat
	# 200501XX:
	OLD_FILES+=usr/libexec/getNAME
	# 200411XX: gvinum replaces vinum
	OLD_FILES+=bin/vinum
	OLD_FILES+=rescue/vinum
	OLD_FILES+=sbin/vinum
	OLD_FILES+=usr/share/man/man8/vinum.8.gz
	# 200411XX: libxpg4 removal
	OLD_FILES+=usr/lib/libxpg4.a
	OLD_FILES+=usr/lib/libxpg4.so
	OLD_FILES+=usr/lib/libxpg4_p.a
	# 20041109: replaced by em(4)
	OLD_FILES+=usr/share/man/man4/gx.4.gz
	OLD_FILES+=usr/share/man/man4/if_gx.4.gz
	# 20041017: rune interface removed
	OLD_FILES+=usr/include/rune.h
	OLD_FILES+=usr/share/man/man3/fgetrune.3.gz
	OLD_FILES+=usr/share/man/man3/fputrune.3.gz
	OLD_FILES+=usr/share/man/man3/fungetrune.3.gz
	OLD_FILES+=usr/share/man/man3/mbrrune.3.gz
	OLD_FILES+=usr/share/man/man3/mbrune.3.gz
	OLD_FILES+=usr/share/man/man3/rune.3.gz
	OLD_FILES+=usr/share/man/man3/setinvalidrune.3.gz
	OLD_FILES+=usr/share/man/man3/sgetrune.3.gz
	OLD_FILES+=usr/share/man/man3/sputrune.3.gz
	# 20040925: bind9 import
	OLD_FILES+=usr/bin/dnskeygen
	OLD_FILES+=usr/bin/dnsquery
	OLD_FILES+=usr/lib/libisc.a
	OLD_FILES+=usr/lib/libisc.so
	OLD_FILES+=usr/lib/libisc_p.a
	OLD_FILES+=usr/libexec/named-xfer
	OLD_FILES+=usr/sbin/named.restart
	OLD_FILES+=usr/sbin/ndc
	OLD_FILES+=usr/sbin/nslookup
	OLD_FILES+=usr/sbin/nsupdate
	OLD_FILES+=usr/share/doc/bind/html/acl.html
	OLD_FILES+=usr/share/doc/bind/html/address_list.html
	OLD_FILES+=usr/share/doc/bind/html/comments.html
	OLD_FILES+=usr/share/doc/bind/html/config.html
	OLD_FILES+=usr/share/doc/bind/html/controls.html
	OLD_FILES+=usr/share/doc/bind/html/docdef.html
	OLD_FILES+=usr/share/doc/bind/html/example.html
	OLD_FILES+=usr/share/doc/bind/html/include.html
	OLD_FILES+=usr/share/doc/bind/html/index.html
	OLD_FILES+=usr/share/doc/bind/html/key.html
	OLD_FILES+=usr/share/doc/bind/html/logging.html
	OLD_FILES+=usr/share/doc/bind/html/master.html
	OLD_FILES+=usr/share/doc/bind/html/options.html
	OLD_FILES+=usr/share/doc/bind/html/server.html
	OLD_FILES+=usr/share/doc/bind/html/trusted-keys.html
	OLD_FILES+=usr/share/doc/bind/html/zone.html
	OLD_FILES+=usr/share/doc/bind/misc/DynamicUpdate
	OLD_FILES+=usr/share/doc/bind/misc/FAQ.1of2
	OLD_FILES+=usr/share/doc/bind/misc/FAQ.2of2
	OLD_FILES+=usr/share/doc/bind/misc/rfc2317-notes.txt
	OLD_FILES+=usr/share/doc/bind/misc/style.txt
	OLD_FILES+=usr/share/man/man1/dnskeygen.1.gz
	OLD_FILES+=usr/share/man/man1/dnsquery.1.gz
	OLD_FILES+=usr/share/man/man8/named-bootconf.8.gz
	OLD_FILES+=usr/share/man/man8/named-xfer.8.gz
	OLD_FILES+=usr/share/man/man8/named.restart.8.gz
	OLD_FILES+=usr/share/man/man8/ndc.8.gz
	OLD_FILES+=usr/share/man/man8/nslookup.8.gz
	# 200409XX
	OLD_FILES+=usr/share/man/man3/ENSURE.3.gz
	OLD_FILES+=usr/share/man/man3/ENSURE_ERR.3.gz
	OLD_FILES+=usr/share/man/man3/INSIST.3.gz
	OLD_FILES+=usr/share/man/man3/INSIST_ERR.3.gz
	OLD_FILES+=usr/share/man/man3/INVARIANT.3.gz
	OLD_FILES+=usr/share/man/man3/INVARIANT_ERR.3.gz
	OLD_FILES+=usr/share/man/man3/REQUIRE.3.gz
	OLD_FILES+=usr/share/man/man3/REQUIRE_ERR.3.gz
	OLD_FILES+=usr/share/man/man3/assertion_type_to_text.3.gz
	OLD_FILES+=usr/share/man/man3/assertions.3.gz
	OLD_FILES+=usr/share/man/man3/bitncmp.3.gz
	OLD_FILES+=usr/share/man/man3/evAddTime.3.gz
	OLD_FILES+=usr/share/man/man3/evCancelConn.3.gz
	OLD_FILES+=usr/share/man/man3/evCancelRW.3.gz
	OLD_FILES+=usr/share/man/man3/evClearIdleTimer.3.gz
	OLD_FILES+=usr/share/man/man3/evClearTimer.3.gz
	OLD_FILES+=usr/share/man/man3/evCmpTime.3.gz
	OLD_FILES+=usr/share/man/man3/evConnFunc.3.gz
	OLD_FILES+=usr/share/man/man3/evConnect.3.gz
	OLD_FILES+=usr/share/man/man3/evConsIovec.3.gz
	OLD_FILES+=usr/share/man/man3/evConsTime.3.gz
	OLD_FILES+=usr/share/man/man3/evCreate.3.gz
	OLD_FILES+=usr/share/man/man3/evDefer.3.gz
	OLD_FILES+=usr/share/man/man3/evDeselectFD.3.gz
	OLD_FILES+=usr/share/man/man3/evDestroy.3.gz
	OLD_FILES+=usr/share/man/man3/evDispatch.3.gz
	OLD_FILES+=usr/share/man/man3/evDo.3.gz
	OLD_FILES+=usr/share/man/man3/evDrop.3.gz
	OLD_FILES+=usr/share/man/man3/evFileFunc.3.gz
	OLD_FILES+=usr/share/man/man3/evGetNext.3.gz
	OLD_FILES+=usr/share/man/man3/evHold.3.gz
	OLD_FILES+=usr/share/man/man3/evInitID.3.gz
	OLD_FILES+=usr/share/man/man3/evLastEventTime.3.gz
	OLD_FILES+=usr/share/man/man3/evListen.3.gz
	OLD_FILES+=usr/share/man/man3/evMainLoop.3.gz
	OLD_FILES+=usr/share/man/man3/evNowTime.3.gz
	OLD_FILES+=usr/share/man/man3/evPrintf.3.gz
	OLD_FILES+=usr/share/man/man3/evRead.3.gz
	OLD_FILES+=usr/share/man/man3/evResetTimer.3.gz
	OLD_FILES+=usr/share/man/man3/evSelectFD.3.gz
	OLD_FILES+=usr/share/man/man3/evSetDebug.3.gz
	OLD_FILES+=usr/share/man/man3/evSetIdleTimer.3.gz
	OLD_FILES+=usr/share/man/man3/evSetTimer.3.gz
	OLD_FILES+=usr/share/man/man3/evStreamFunc.3.gz
	OLD_FILES+=usr/share/man/man3/evSubTime.3.gz
	OLD_FILES+=usr/share/man/man3/evTestID.3.gz
	OLD_FILES+=usr/share/man/man3/evTimeRW.3.gz
	OLD_FILES+=usr/share/man/man3/evTimeSpec.3.gz
	OLD_FILES+=usr/share/man/man3/evTimeVal.3.gz
	OLD_FILES+=usr/share/man/man3/evTimerFunc.3.gz
	OLD_FILES+=usr/share/man/man3/evTouchIdleTimer.3.gz
	OLD_FILES+=usr/share/man/man3/evTryAccept.3.gz
	OLD_FILES+=usr/share/man/man3/evUnhold.3.gz
	OLD_FILES+=usr/share/man/man3/evUntimeRW.3.gz
	OLD_FILES+=usr/share/man/man3/evUnwait.3.gz
	OLD_FILES+=usr/share/man/man3/evWaitFor.3.gz
	OLD_FILES+=usr/share/man/man3/evWaitFunc.3.gz
	OLD_FILES+=usr/share/man/man3/evWrite.3.gz
	OLD_FILES+=usr/share/man/man3/eventlib.3.gz
	OLD_FILES+=usr/share/man/man3/heap.3.gz
	OLD_FILES+=usr/share/man/man3/heap_decreased.3.gz
	OLD_FILES+=usr/share/man/man3/heap_delete.3.gz
	OLD_FILES+=usr/share/man/man3/heap_element.3.gz
	OLD_FILES+=usr/share/man/man3/heap_for_each.3.gz
	OLD_FILES+=usr/share/man/man3/heap_free.3.gz
	OLD_FILES+=usr/share/man/man3/heap_increased.3.gz
	OLD_FILES+=usr/share/man/man3/heap_insert.3.gz
	OLD_FILES+=usr/share/man/man3/heap_new.3.gz
	OLD_FILES+=usr/share/man/man3/log_add_channel.3.gz
	OLD_FILES+=usr/share/man/man3/log_category_is_active.3.gz
	OLD_FILES+=usr/share/man/man3/log_close_stream.3.gz
	OLD_FILES+=usr/share/man/man3/log_dec_references.3.gz
	OLD_FILES+=usr/share/man/man3/log_free_channel.3.gz
	OLD_FILES+=usr/share/man/man3/log_free_context.3.gz
	OLD_FILES+=usr/share/man/man3/log_get_filename.3.gz
	OLD_FILES+=usr/share/man/man3/log_get_stream.3.gz
	OLD_FILES+=usr/share/man/man3/log_inc_references.3.gz
	OLD_FILES+=usr/share/man/man3/log_new_context.3.gz
	OLD_FILES+=usr/share/man/man3/log_new_file_channel.3.gz
	OLD_FILES+=usr/share/man/man3/log_new_null_channel.3.gz
	OLD_FILES+=usr/share/man/man3/log_new_syslog_channel.3.gz
	OLD_FILES+=usr/share/man/man3/log_open_stream.3.gz
	OLD_FILES+=usr/share/man/man3/log_option.3.gz
	OLD_FILES+=usr/share/man/man3/log_remove_channel.3.gz
	OLD_FILES+=usr/share/man/man3/log_set_file_owner.3.gz
	OLD_FILES+=usr/share/man/man3/log_vwrite.3.gz
	OLD_FILES+=usr/share/man/man3/log_write.3.gz
	OLD_FILES+=usr/share/man/man3/logging.3.gz
	OLD_FILES+=usr/share/man/man3/memcluster.3.gz
	OLD_FILES+=usr/share/man/man3/memget.3.gz
	OLD_FILES+=usr/share/man/man3/memput.3.gz
	OLD_FILES+=usr/share/man/man3/memstats.3.gz
	OLD_FILES+=usr/share/man/man3/set_assertion_failure_callback.3.
	OLD_FILES+=usr/share/man/man3/sigwait.3.gz
	OLD_FILES+=usr/share/man/man3/tree_add.3.gz
	OLD_FILES+=usr/share/man/man3/tree_delete.3.gz
	OLD_FILES+=usr/share/man/man3/tree_init.3.gz
	OLD_FILES+=usr/share/man/man3/tree_mung.3.gz
	OLD_FILES+=usr/share/man/man3/tree_srch.3.gz
	OLD_FILES+=usr/share/man/man3/tree_trav.3.gz
	# 2004XXYY: OS internal libs, no ports use them, no need to use OLD_LIBS
	OLD_LIBS+=lib/geom/geom_concat.so.1
	OLD_LIBS+=lib/geom/geom_label.so.1
	OLD_LIBS+=lib/geom/geom_nop.so.1
	OLD_LIBS+=lib/geom/geom_stripe.so.1
	# 20040728: GCC 3.4.2
	OLD_DIRS+=usr/include/c++/3.3
	OLD_FILES+=usr/include/c++/3.3/FlexLexer.h
	OLD_FILES+=usr/include/c++/3.3/algorithm
	OLD_FILES+=usr/include/c++/3.3/backward/algo.h
	OLD_FILES+=usr/include/c++/3.3/backward/algobase.h
	OLD_FILES+=usr/include/c++/3.3/backward/alloc.h
	OLD_FILES+=usr/include/c++/3.3/backward/backward_warning.h
	OLD_FILES+=usr/include/c++/3.3/backward/bvector.h
	OLD_FILES+=usr/include/c++/3.3/backward/complex.h
	OLD_FILES+=usr/include/c++/3.3/backward/defalloc.h
	OLD_FILES+=usr/include/c++/3.3/backward/deque.h
	OLD_FILES+=usr/include/c++/3.3/backward/fstream.h
	OLD_FILES+=usr/include/c++/3.3/backward/function.h
	OLD_FILES+=usr/include/c++/3.3/backward/hash_map.h
	OLD_FILES+=usr/include/c++/3.3/backward/hash_set.h
	OLD_FILES+=usr/include/c++/3.3/backward/hashtable.h
	OLD_FILES+=usr/include/c++/3.3/backward/heap.h
	OLD_FILES+=usr/include/c++/3.3/backward/iomanip.h
	OLD_FILES+=usr/include/c++/3.3/backward/iostream.h
	OLD_FILES+=usr/include/c++/3.3/backward/istream.h
	OLD_FILES+=usr/include/c++/3.3/backward/iterator.h
	OLD_FILES+=usr/include/c++/3.3/backward/list.h
	OLD_FILES+=usr/include/c++/3.3/backward/map.h
	OLD_FILES+=usr/include/c++/3.3/backward/multimap.h
	OLD_FILES+=usr/include/c++/3.3/backward/multiset.h
	OLD_FILES+=usr/include/c++/3.3/backward/new.h
	OLD_FILES+=usr/include/c++/3.3/backward/ostream.h
	OLD_FILES+=usr/include/c++/3.3/backward/pair.h
	OLD_FILES+=usr/include/c++/3.3/backward/queue.h
	OLD_FILES+=usr/include/c++/3.3/backward/rope.h
	OLD_FILES+=usr/include/c++/3.3/backward/set.h
	OLD_FILES+=usr/include/c++/3.3/backward/slist.h
	OLD_FILES+=usr/include/c++/3.3/backward/stack.h
	OLD_FILES+=usr/include/c++/3.3/backward/stream.h
	OLD_FILES+=usr/include/c++/3.3/backward/streambuf.h
	OLD_FILES+=usr/include/c++/3.3/backward/strstream
	OLD_FILES+=usr/include/c++/3.3/backward/strstream.h
	OLD_FILES+=usr/include/c++/3.3/backward/tempbuf.h
	OLD_FILES+=usr/include/c++/3.3/backward/tree.h
	OLD_FILES+=usr/include/c++/3.3/backward/vector.h
	OLD_DIRS+=usr/include/c++/3.3/backward
	OLD_FILES+=usr/include/c++/3.3/bits/atomicity.h
	OLD_FILES+=usr/include/c++/3.3/bits/basic_file.h
	OLD_FILES+=usr/include/c++/3.3/bits/basic_ios.h
	OLD_FILES+=usr/include/c++/3.3/bits/basic_ios.tcc
	OLD_FILES+=usr/include/c++/3.3/bits/basic_string.h
	OLD_FILES+=usr/include/c++/3.3/bits/basic_string.tcc
	OLD_FILES+=usr/include/c++/3.3/bits/boost_concept_check.h
	OLD_FILES+=usr/include/c++/3.3/bits/c++config.h
	OLD_FILES+=usr/include/c++/3.3/bits/c++io.h
	OLD_FILES+=usr/include/c++/3.3/bits/c++locale.h
	OLD_FILES+=usr/include/c++/3.3/bits/c++locale_internal.h
	OLD_FILES+=usr/include/c++/3.3/bits/char_traits.h
	OLD_FILES+=usr/include/c++/3.3/bits/cmath.tcc
	OLD_FILES+=usr/include/c++/3.3/bits/codecvt.h
	OLD_FILES+=usr/include/c++/3.3/bits/codecvt_specializations.h
	OLD_FILES+=usr/include/c++/3.3/bits/concept_check.h
	OLD_FILES+=usr/include/c++/3.3/bits/cpp_type_traits.h
	OLD_FILES+=usr/include/c++/3.3/bits/ctype_base.h
	OLD_FILES+=usr/include/c++/3.3/bits/ctype_inline.h
	OLD_FILES+=usr/include/c++/3.3/bits/ctype_noninline.h
	OLD_FILES+=usr/include/c++/3.3/bits/deque.tcc
	OLD_FILES+=usr/include/c++/3.3/bits/fpos.h
	OLD_FILES+=usr/include/c++/3.3/bits/fstream.tcc
	OLD_FILES+=usr/include/c++/3.3/bits/functexcept.h
	OLD_FILES+=usr/include/c++/3.3/bits/generic_shadow.h
	OLD_FILES+=usr/include/c++/3.3/bits/gslice.h
	OLD_FILES+=usr/include/c++/3.3/bits/gslice_array.h
	OLD_FILES+=usr/include/c++/3.3/bits/gthr-default.h
	OLD_FILES+=usr/include/c++/3.3/bits/gthr-posix.h
	OLD_FILES+=usr/include/c++/3.3/bits/gthr-single.h
	OLD_FILES+=usr/include/c++/3.3/bits/gthr.h
	OLD_FILES+=usr/include/c++/3.3/bits/indirect_array.h
	OLD_FILES+=usr/include/c++/3.3/bits/ios_base.h
	OLD_FILES+=usr/include/c++/3.3/bits/istream.tcc
	OLD_FILES+=usr/include/c++/3.3/bits/list.tcc
	OLD_FILES+=usr/include/c++/3.3/bits/locale_classes.h
	OLD_FILES+=usr/include/c++/3.3/bits/locale_facets.h
	OLD_FILES+=usr/include/c++/3.3/bits/locale_facets.tcc
	OLD_FILES+=usr/include/c++/3.3/bits/localefwd.h
	OLD_FILES+=usr/include/c++/3.3/bits/mask_array.h
	OLD_FILES+=usr/include/c++/3.3/bits/messages_members.h
	OLD_FILES+=usr/include/c++/3.3/bits/os_defines.h
	OLD_FILES+=usr/include/c++/3.3/bits/ostream.tcc
	OLD_FILES+=usr/include/c++/3.3/bits/pthread_allocimpl.h
	OLD_FILES+=usr/include/c++/3.3/bits/slice.h
	OLD_FILES+=usr/include/c++/3.3/bits/slice_array.h
	OLD_FILES+=usr/include/c++/3.3/bits/sstream.tcc
	OLD_FILES+=usr/include/c++/3.3/bits/stl_algo.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_algobase.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_alloc.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_bvector.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_construct.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_deque.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_function.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_heap.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_iterator.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_iterator_base_funcs.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_iterator_base_types.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_list.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_map.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_multimap.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_multiset.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_numeric.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_pair.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_pthread_alloc.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_queue.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_raw_storage_iter.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_relops.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_set.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_stack.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_tempbuf.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_threads.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_tree.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_uninitialized.h
	OLD_FILES+=usr/include/c++/3.3/bits/stl_vector.h
	OLD_FILES+=usr/include/c++/3.3/bits/stream_iterator.h
	OLD_FILES+=usr/include/c++/3.3/bits/streambuf.tcc
	OLD_FILES+=usr/include/c++/3.3/bits/streambuf_iterator.h
	OLD_FILES+=usr/include/c++/3.3/bits/stringfwd.h
	OLD_FILES+=usr/include/c++/3.3/bits/time_members.h
	OLD_FILES+=usr/include/c++/3.3/bits/type_traits.h
	OLD_FILES+=usr/include/c++/3.3/bits/valarray_array.h
	OLD_FILES+=usr/include/c++/3.3/bits/valarray_array.tcc
	OLD_FILES+=usr/include/c++/3.3/bits/valarray_meta.h
	OLD_FILES+=usr/include/c++/3.3/bits/vector.tcc
	OLD_DIRS+=usr/include/c++/3.3/bits
	OLD_FILES+=usr/include/c++/3.3/bitset
	OLD_FILES+=usr/include/c++/3.3/cassert
	OLD_FILES+=usr/include/c++/3.3/cctype
	OLD_FILES+=usr/include/c++/3.3/cerrno
	OLD_FILES+=usr/include/c++/3.3/cfloat
	OLD_FILES+=usr/include/c++/3.3/ciso646
	OLD_FILES+=usr/include/c++/3.3/climits
	OLD_FILES+=usr/include/c++/3.3/clocale
	OLD_FILES+=usr/include/c++/3.3/cmath
	OLD_FILES+=usr/include/c++/3.3/complex
	OLD_FILES+=usr/include/c++/3.3/csetjmp
	OLD_FILES+=usr/include/c++/3.3/csignal
	OLD_FILES+=usr/include/c++/3.3/cstdarg
	OLD_FILES+=usr/include/c++/3.3/cstddef
	OLD_FILES+=usr/include/c++/3.3/cstdio
	OLD_FILES+=usr/include/c++/3.3/cstdlib
	OLD_FILES+=usr/include/c++/3.3/cstring
	OLD_FILES+=usr/include/c++/3.3/ctime
	OLD_FILES+=usr/include/c++/3.3/cwchar
	OLD_FILES+=usr/include/c++/3.3/cwctype
	OLD_FILES+=usr/include/c++/3.3/cxxabi.h
	OLD_FILES+=usr/include/c++/3.3/deque
	OLD_FILES+=usr/include/c++/3.3/exception
	OLD_FILES+=usr/include/c++/3.3/exception_defines.h
	OLD_FILES+=usr/include/c++/3.3/ext/algorithm
	OLD_FILES+=usr/include/c++/3.3/ext/enc_filebuf.h
	OLD_FILES+=usr/include/c++/3.3/ext/functional
	OLD_FILES+=usr/include/c++/3.3/ext/hash_map
	OLD_FILES+=usr/include/c++/3.3/ext/hash_set
	OLD_FILES+=usr/include/c++/3.3/ext/iterator
	OLD_FILES+=usr/include/c++/3.3/ext/memory
	OLD_FILES+=usr/include/c++/3.3/ext/numeric
	OLD_FILES+=usr/include/c++/3.3/ext/rb_tree
	OLD_FILES+=usr/include/c++/3.3/ext/rope
	OLD_FILES+=usr/include/c++/3.3/ext/ropeimpl.h
	OLD_FILES+=usr/include/c++/3.3/ext/slist
	OLD_FILES+=usr/include/c++/3.3/ext/stdio_filebuf.h
	OLD_FILES+=usr/include/c++/3.3/ext/stl_hash_fun.h
	OLD_FILES+=usr/include/c++/3.3/ext/stl_hashtable.h
	OLD_FILES+=usr/include/c++/3.3/ext/stl_rope.h
	OLD_DIRS+=usr/include/c++/3.3/ext
	OLD_FILES+=usr/include/c++/3.3/fstream
	OLD_FILES+=usr/include/c++/3.3/functional
	OLD_FILES+=usr/include/c++/3.3/iomanip
	OLD_FILES+=usr/include/c++/3.3/ios
	OLD_FILES+=usr/include/c++/3.3/iosfwd
	OLD_FILES+=usr/include/c++/3.3/iostream
	OLD_FILES+=usr/include/c++/3.3/istream
	OLD_FILES+=usr/include/c++/3.3/iterator
	OLD_FILES+=usr/include/c++/3.3/limits
	OLD_FILES+=usr/include/c++/3.3/list
	OLD_FILES+=usr/include/c++/3.3/locale
	OLD_FILES+=usr/include/c++/3.3/map
	OLD_FILES+=usr/include/c++/3.3/memory
	OLD_FILES+=usr/include/c++/3.3/new
	OLD_FILES+=usr/include/c++/3.3/numeric
	OLD_FILES+=usr/include/c++/3.3/ostream
	OLD_FILES+=usr/include/c++/3.3/queue
	OLD_FILES+=usr/include/c++/3.3/set
	OLD_FILES+=usr/include/c++/3.3/sstream
	OLD_FILES+=usr/include/c++/3.3/stack
	OLD_FILES+=usr/include/c++/3.3/stdexcept
	OLD_FILES+=usr/include/c++/3.3/streambuf
	OLD_FILES+=usr/include/c++/3.3/string
	OLD_FILES+=usr/include/c++/3.3/typeinfo
	OLD_FILES+=usr/include/c++/3.3/utility
	OLD_FILES+=usr/include/c++/3.3/valarray
	OLD_FILES+=usr/include/c++/3.3/vector
	# 20040713: fla(4) removed.
	OLD_FILES+=usr/share/man/man4/fla.4.gz
	# 200407XX
	OLD_FILES+=usr/sbin/kernbb
	OLD_FILES+=usr/sbin/ntp-genkeys
	OLD_FILES+=usr/sbin/ntptimeset
	OLD_FILES+=usr/share/man/man8/kernbb.8.gz
	OLD_FILES+=usr/share/man/man8/ntp-genkeys.8.gz
	# 20040627: usbdevs.h and usbdevs_data.h removal
	OLD_FILES+=usr/include/dev/usb/usbdevs.h
	OLD_FILES+=usr/include/dev/usb/usbdevs_data.h
	# 200406XX
	OLD_FILES+=usr/bin/gasp
	OLD_FILES+=usr/bin/gdbreplay
	OLD_FILES+=usr/share/man/man1/gasp.1.gz
	OLD_FILES+=sbin/mountd
	OLD_FILES+=sbin/mount_fdesc
	OLD_FILES+=sbin/mount_umap
	OLD_FILES+=sbin/mount_union
	OLD_FILES+=sbin/mount_msdos
	OLD_FILES+=sbin/mount_null
	OLD_FILES+=sbin/mount_kernfs
	# 200405XX: arl
	OLD_FILES+=usr/sbin/arlconfig
	OLD_FILES+=usr/share/man/man8/arlconfig.8.gz
	# 200403XX
	OLD_FILES+=bin/raidctl
	OLD_FILES+=sbin/raidctl
	OLD_FILES+=usr/bin/sasc
	OLD_FILES+=usr/sbin/sgsc
	OLD_FILES+=usr/sbin/stlload
	OLD_FILES+=usr/sbin/stlstats
	OLD_FILES+=usr/share/man/man1/sasc.1.gz
	OLD_FILES+=usr/share/man/man1/sgsc.1.gz
	OLD_FILES+=usr/share/man/man4/i386/stl.4.gz
	OLD_FILES+=usr/share/man/man8/raidctl.8.gz
	# 20040229: clean_environment() was removed after 3 days
	OLD_FILES+=usr/share/man/man3/clean_environment.3.gz
	# 20040119: installed as `isdntel' in newer systems
	OLD_FILES+=etc/isdn/isdntel.sh
	# 200XYYZZ: /lib transition clitches
	OLD_FILES+=lib/libalias.so
	OLD_FILES+=lib/libatm.so
	OLD_FILES+=lib/libbsdxml.so
	OLD_FILES+=lib/libc.so
	OLD_FILES+=lib/libcam.so
	OLD_FILES+=lib/libcrypt.so
	OLD_FILES+=lib/libcrypto.so
	OLD_FILES+=lib/libdevstat.so
	OLD_FILES+=lib/libedit.so
	OLD_FILES+=lib/libgeom.so
	OLD_FILES+=lib/libipsec.so
	OLD_FILES+=lib/libipx.so
	OLD_FILES+=lib/libkvm.so
	OLD_FILES+=lib/libm.so
	OLD_FILES+=lib/libmd.so
	OLD_FILES+=lib/libncurses.so
	OLD_FILES+=lib/libreadline.so
	OLD_FILES+=lib/libsbuf.so
	OLD_FILES+=lib/libufs.so
	OLD_FILES+=lib/libz.so
	# 200312XX
	OLD_FILES+=bin/cxconfig
	OLD_FILES+=sbin/cxconfig
	OLD_FILES+=usr/share/man/man8/cxconfig.8.gz
	# 20031016: MULTI_DRIVER_MODULE macro removed
	OLD_FILES+=usr/share/man/man9/MULTI_DRIVER_MODULE.9.gz
	# 200309XX
	OLD_FILES+=usr/bin/symorder
	OLD_FILES+=usr/share/man/man1/symorder.1.gz
	# 200308XX
	OLD_FILES+=usr/sbin/amldb
	OLD_FILES+=usr/share/man/man8/amldb.8.gz
	# 200307XX
	OLD_FILES+=sbin/mount_nwfs
	OLD_FILES+=sbin/mount_portalfs
	OLD_FILES+=sbin/mount_smbfs
	# 200306XX
	OLD_FILES+=usr/sbin/dev_mkdb
	OLD_FILES+=usr/share/man/man8/dev_mkdb.8.gz
	# 200304XX
	OLD_FILES+=usr/lib/libcipher.a
	OLD_FILES+=usr/lib/libcipher.so
	OLD_FILES+=usr/lib/libcipher_p.a
	OLD_FILES+=usr/lib/libgmp.a
	OLD_FILES+=usr/lib/libgmp.so
	OLD_FILES+=usr/lib/libgmp_p.a
	OLD_FILES+=usr/lib/libperl.a
	OLD_FILES+=usr/lib/libperl.so
	OLD_FILES+=usr/lib/libperl_p.a
	OLD_FILES+=usr/lib/libposix1e.a
	OLD_FILES+=usr/lib/libposix1e.so
	OLD_FILES+=usr/lib/libposix1e_p.a
	OLD_FILES+=usr/lib/libskey.a
	OLD_FILES+=usr/lib/libskey.so
	OLD_FILES+=usr/lib/libskey_p.a
	OLD_FILES+=usr/libexec/tradcpp0
	OLD_FILES+=usr/libexec/cpp0
	# 200304XX: removal of xten
	OLD_FILES+=usr/libexec/xtend
	OLD_FILES+=usr/sbin/xten
	OLD_FILES+=usr/share/man/man1/xten.1.gz
	OLD_FILES+=usr/share/man/man8/xtend.8.gz
	# 200303XX
	OLD_FILES+=usr/lib/libacl.so
	OLD_FILES+=usr/lib/libdescrypt.so
	OLD_FILES+=usr/lib/libf2c.so
	OLD_FILES+=usr/lib/libg++.so
	OLD_FILES+=usr/lib/libkdb.so
	OLD_FILES+=usr/lib/librsaINTL.so
	OLD_FILES+=usr/lib/libscrypt.so
	OLD_FILES+=usr/lib/libss.so
	# 200302XX
	OLD_FILES+=usr/lib/libacl.a
	OLD_FILES+=usr/lib/libacl_p.a
	OLD_FILES+=usr/lib/libkadm.a
	OLD_FILES+=usr/lib/libkadm.so
	OLD_FILES+=usr/lib/libkadm_p.a
	OLD_FILES+=usr/lib/libkafs.a
	OLD_FILES+=usr/lib/libkafs.so
	OLD_FILES+=usr/lib/libkafs_p.a
	OLD_FILES+=usr/lib/libkdb.a
	OLD_FILES+=usr/lib/libkdb_p.a
	OLD_FILES+=usr/lib/libkrb.a
	OLD_FILES+=usr/lib/libkrb.so
	OLD_FILES+=usr/lib/libkrb_p.a
	OLD_FILES+=usr/share/man/man3/SSL_CIPHER_get_name.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_COMP_add_compression_method.3
	OLD_FILES+=usr/share/man/man3/SSL_CTX_add_extra_chain_cert.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_add_session.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_ctrl.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_flush_sessions.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_free.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_get_verify_mode.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_load_verify_locations.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_new.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_sess_number.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_sess_set_cache_size.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_sess_set_get_cb.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_sessions.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_cert_store.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_cert_verify_callback.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_cipher_list.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_client_CA_list.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_client_cert_cb.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_default_passwd_cb.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_generate_session_id.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_info_callback.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_max_cert_list.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_mode.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_msg_callback.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_options.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_quiet_shutdown.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_session_cache_mode.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_session_id_context.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_ssl_version.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_timeout.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_tmp_dh_callback.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_tmp_rsa_callback.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_set_verify.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_use_certificate.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_SESSION_free.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_SESSION_get_ex_new_index.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_SESSION_get_time.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_accept.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_alert_type_string.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_clear.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_connect.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_do_handshake.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_free.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_get_SSL_CTX.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_get_ciphers.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_get_client_CA_list.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_get_current_cipher.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_get_default_timeout.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_get_error.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_get_ex_data_X509_STORE_CTX_idx.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_get_ex_new_index.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_get_fd.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_get_peer_cert_chain.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_get_peer_certificate.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_get_rbio.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_get_session.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_get_verify_result.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_get_version.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_library_init.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_load_client_CA_file.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_new.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_pending.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_read.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_rstate_string.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_session_reused.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_set_bio.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_set_connect_state.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_set_fd.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_set_session.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_set_shutdown.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_set_verify_result.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_shutdown.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_state_string.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_want.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_write.3.gz
	OLD_FILES+=usr/share/man/man3/d2i_SSL_SESSION.3.gz
	# 200301XX
	OLD_FILES+=usr/share/man/man3/des_3cbc_encrypt.3.gz
	OLD_FILES+=usr/share/man/man3/des_3ecb_encrypt.3.gz
	OLD_FILES+=usr/share/man/man3/des_cbc_cksum.3.gz
	OLD_FILES+=usr/share/man/man3/des_cbc_encrypt.3.gz
	OLD_FILES+=usr/share/man/man3/des_cfb_encrypt.3.gz
	OLD_FILES+=usr/share/man/man3/des_ecb_encrypt.3.gz
	OLD_FILES+=usr/share/man/man3/des_enc_read.3.gz
	OLD_FILES+=usr/share/man/man3/des_enc_write.3.gz
	OLD_FILES+=usr/share/man/man3/des_is_weak_key.3.gz
	OLD_FILES+=usr/share/man/man3/des_key_sched.3.gz
	OLD_FILES+=usr/share/man/man3/des_ofb_encrypt.3.gz
	OLD_FILES+=usr/share/man/man3/des_pcbc_encrypt.3.gz
	OLD_FILES+=usr/share/man/man3/des_quad_cksum.3.gz
	OLD_FILES+=usr/share/man/man3/des_random_key.3.gz
	OLD_FILES+=usr/share/man/man3/des_read_2password.3.gz
	OLD_FILES+=usr/share/man/man3/des_read_password.3.gz
	OLD_FILES+=usr/share/man/man3/des_read_pw_string.3.gz
	OLD_FILES+=usr/share/man/man3/des_set_key.3.gz
	OLD_FILES+=usr/share/man/man3/des_set_odd_parity.3.gz
	OLD_FILES+=usr/share/man/man3/des_string_to_2key.3.gz
	OLD_FILES+=usr/share/man/man3/des_string_to_key.3.gz
	# 200212XX
	OLD_FILES+=usr/sbin/kenv
	OLD_FILES+=usr/bin/kenv
	OLD_FILES+=usr/sbin/elf2aout
	# 200210XX
	OLD_FILES+=usr/include/libusbhid.h
	OLD_FILES+=usr/share/man/man3/All_FreeBSD.3.gz
	OLD_FILES+=usr/share/man/man3/CheckRules.3.gz
	OLD_FILES+=usr/share/man/man3/ChunkCanBeRoot.3.gz
	OLD_FILES+=usr/share/man/man3/Clone_Disk.3.gz
	OLD_FILES+=usr/share/man/man3/Collapse_Chunk.3.gz
	OLD_FILES+=usr/share/man/man3/Collapse_Disk.3.gz
	OLD_FILES+=usr/share/man/man3/Create_Chunk.3.gz
	OLD_FILES+=usr/share/man/man3/Create_Chunk_DWIM.3.gz
	OLD_FILES+=usr/share/man/man3/Cyl_Aligned.3.gz
	OLD_FILES+=usr/share/man/man3/Debug_Disk.3.gz
	OLD_FILES+=usr/share/man/man3/Delete_Chunk.3.gz
	OLD_FILES+=usr/share/man/man3/Disk_Names.3.gz
	OLD_FILES+=usr/share/man/man3/Free_Disk.3.gz
	OLD_FILES+=usr/share/man/man3/MakeDev.3.gz
	OLD_FILES+=usr/share/man/man3/MakeDevDisk.3.gz
	OLD_FILES+=usr/share/man/man3/Next_Cyl_Aligned.3.gz
	OLD_FILES+=usr/share/man/man3/Next_Track_Aligned.3.gz
	OLD_FILES+=usr/share/man/man3/Open_Disk.3.gz
	OLD_FILES+=usr/share/man/man3/Prev_Cyl_Aligned.3.gz
	OLD_FILES+=usr/share/man/man3/Prev_Track_Aligned.3.gz
	OLD_FILES+=usr/share/man/man3/Set_Bios_Geom.3.gz
	OLD_FILES+=usr/share/man/man3/Set_Boot_Blocks.3.gz
	OLD_FILES+=usr/share/man/man3/Set_Boot_Mgr.3.gz
	OLD_FILES+=usr/share/man/man3/ShowChunkFlags.3.gz
	OLD_FILES+=usr/share/man/man3/Track_Aligned.3.gz
	OLD_FILES+=usr/share/man/man3/Write_Disk.3.gz
	OLD_FILES+=usr/share/man/man3/slice_type_name.3.gz
	# 200210XX: most games moved to ports
	OLD_FILES+=usr/share/man/man6/adventure.6.gz
	OLD_FILES+=usr/share/man/man6/arithmetic.6.gz
	OLD_FILES+=usr/share/man/man6/atc.6.gz
	OLD_FILES+=usr/share/man/man6/backgammon.6.gz
	OLD_FILES+=usr/share/man/man6/battlestar.6.gz
	OLD_FILES+=usr/share/man/man6/bs.6.gz
	OLD_FILES+=usr/share/man/man6/canfield.6.gz
	OLD_FILES+=usr/share/man/man6/cfscores.6.gz
	OLD_FILES+=usr/share/man/man6/cribbage.6.gz
	OLD_FILES+=usr/share/man/man6/fish.6.gz
	OLD_FILES+=usr/share/man/man6/hack.6.gz
	OLD_FILES+=usr/share/man/man6/hangman.6.gz
	OLD_FILES+=usr/share/man/man6/larn.6.gz
	OLD_FILES+=usr/share/man/man6/mille.6.gz
	OLD_FILES+=usr/share/man/man6/phantasia.6.gz
	OLD_FILES+=usr/share/man/man6/piano.6.gz
	OLD_FILES+=usr/share/man/man6/pig.6.gz
	OLD_FILES+=usr/share/man/man6/quiz.6.gz
	OLD_FILES+=usr/share/man/man6/rain.6.gz
	OLD_FILES+=usr/share/man/man6/robots.6.gz
	OLD_FILES+=usr/share/man/man6/rogue.6.gz
	OLD_FILES+=usr/share/man/man6/sail.6.gz
	OLD_FILES+=usr/share/man/man6/snake.6.gz
	OLD_FILES+=usr/share/man/man6/snscore.6.gz
	OLD_FILES+=usr/share/man/man6/trek.6.gz
	OLD_FILES+=usr/share/man/man6/wargames.6.gz
	OLD_FILES+=usr/share/man/man6/worm.6.gz
	OLD_FILES+=usr/share/man/man6/worms.6.gz
	OLD_FILES+=usr/share/man/man6/wump.6.gz
	# 200207XX
	OLD_FILES+=usr/share/man/man1aout/ar.1aout.gz
	OLD_FILES+=usr/share/man/man1aout/as.1aout.gz
	OLD_FILES+=usr/share/man/man1aout/ld.1aout.gz
	OLD_FILES+=usr/share/man/man1aout/nm.1aout.gz
	OLD_FILES+=usr/share/man/man1aout/ranlib.1aout.gz
	OLD_FILES+=usr/share/man/man1aout/size.1aout.gz
	OLD_FILES+=usr/share/man/man1aout/strings.1aout.gz
	OLD_FILES+=usr/share/man/man1aout/strip.1aout.gz
	OLD_FILES+=bin/mountd
	OLD_FILES+=bin/nfsd
	# 20020707 sbin/nfsd -> usr.sbin/nfsd
	OLD_FILES+=sbin/nfsd
	# 200206XX
	OLD_FILES+=usr/lib/libpam_ssh.a
	OLD_FILES+=usr/lib/libpam_ssh_p.a
	OLD_FILES+=usr/bin/help
	OLD_FILES+=usr/bin/sccs
	.if ${TARGET_ARCH} != "amd64" && ${TARGET} != "arm" && ${TARGET_ARCH} != "i386" && ${TARGET} != "powerpc"
	OLD_FILES+=usr/bin/gdbserver
	.endif
	OLD_FILES+=usr/bin/ssh-keysign
	OLD_FILES+=usr/sbin/gifconfig
	OLD_FILES+=usr/sbin/prefix
	# 200205XX
	OLD_FILES+=usr/bin/doscmd
	# 200204XX
	OLD_FILES+=usr/bin/a2p
	OLD_FILES+=usr/bin/ptx
	OLD_FILES+=usr/bin/pod2text
	OLD_FILES+=usr/bin/pod2man
	OLD_FILES+=usr/bin/pod2latex
	OLD_FILES+=usr/bin/pod2html
	OLD_FILES+=usr/bin/h2ph
	OLD_FILES+=usr/bin/dprofpp
	OLD_FILES+=usr/bin/c2ph
	OLD_FILES+=usr/bin/h2xs
	OLD_FILES+=usr/bin/pl2pm
	OLD_FILES+=usr/bin/splain
	OLD_FILES+=usr/bin/s2p
	OLD_FILES+=usr/bin/find2perl
	OLD_FILES+=usr/sbin/pkg_update
	OLD_FILES+=usr/sbin/scriptdump
	# 20020409 GC kget(1), userconfig is long dead.
	OLD_FILES+=sbin/kget
	OLD_FILES+=usr/share/man/man8/kget.8.gz
	# 200203XX
	OLD_FILES+=usr/lib/libss.a
	OLD_FILES+=usr/lib/libss_p.a
	OLD_FILES+=usr/lib/libtelnet.a
	OLD_FILES+=usr/lib/libtelnet_p.a
	OLD_FILES+=usr/sbin/diskpart
	# 200202XX
	OLD_FILES+=usr/bin/gprof4
	# 200201XX
	OLD_FILES+=usr/sbin/linux
	# 2001XXXX
	OLD_FILES+=usr/bin/joy
	OLD_FILES+=usr/sbin/ibcs2
	OLD_FILES+=usr/sbin/svr4
	OLD_FILES+=usr/bin/chflags
	OLD_FILES+=usr/sbin/uuconv
	OLD_FILES+=usr/sbin/uuchk
	OLD_FILES+=usr/sbin/portmap
	OLD_FILES+=usr/sbin/pmap_set
	OLD_FILES+=usr/sbin/pmap_dump
	OLD_FILES+=usr/sbin/mcon
	OLD_FILES+=usr/sbin/stlstty
	OLD_FILES+=usr/sbin/ispppcontrol
	OLD_FILES+=usr/sbin/rndcontrol
	# 20011001: UUCP migration to ports
	OLD_FILES+=usr/bin/uucp
	OLD_FILES+=usr/bin/uulog
	OLD_FILES+=usr/bin/uuname
	OLD_FILES+=usr/bin/uupick
	OLD_FILES+=usr/bin/uusched
	OLD_FILES+=usr/bin/uustat
	OLD_FILES+=usr/bin/uuto
	OLD_FILES+=usr/bin/uux
	OLD_FILES+=usr/libexec/uucp/uucico
	OLD_FILES+=usr/libexec/uucp/uuxqt
	OLD_FILES+=usr/libexec/uucpd
	OLD_FILES+=usr/share/man/man1/uuconv.1.gz
	OLD_FILES+=usr/share/man/man1/uucp.1.gz
	OLD_FILES+=usr/share/man/man1/uulog.1.gz
	OLD_FILES+=usr/share/man/man1/uuname.1.gz
	OLD_FILES+=usr/share/man/man1/uupick.1.gz
	OLD_FILES+=usr/share/man/man1/uustat.1.gz
	OLD_FILES+=usr/share/man/man1/uuto.1.gz
	OLD_FILES+=usr/share/man/man1/uux.1.gz
	OLD_FILES+=usr/share/man/man8/uuchk.8.gz
	OLD_FILES+=usr/share/man/man8/uucico.8.gz
	OLD_FILES+=usr/share/man/man8/uucpd.8.gz
	OLD_FILES+=usr/share/man/man8/uusched.8.gz
	OLD_FILES+=usr/share/man/man8/uuxqt.8.gz
	# 20010523 mount_portal -> mount_portalfs
	OLD_FILES+=sbin/mount_portal
	OLD_FILES+=usr/share/man/man8/mount_portal.8.gz
	# 200104XX
	OLD_FILES+=usr/lib/libdescrypt.a
	OLD_FILES+=usr/lib/libscrypt.a
	OLD_FILES+=usr/lib/libscrypt_p.a
	OLD_FILES+=usr/sbin/pim6stat
	OLD_FILES+=usr/sbin/pim6sd
	OLD_FILES+=usr/sbin/pim6dd
	# 20010217
	OLD_FILES+=usr/share/doc/bind/misc/dns-setup
	# 20001200
	OLD_FILES+=usr/lib/libgcc_r_pic.a
	# 200009XX
	OLD_FILES+=usr/lib/libRSAglue.a
	OLD_FILES+=usr/lib/libRSAglue.so
	OLD_FILES+=usr/lib/librsaINTL.a
	OLD_FILES+=usr/lib/librsaUSA.a
	OLD_FILES+=usr/lib/librsaUSA.so
	# 200002XX ?
	OLD_FILES+=usr/lib/libf2c.a
	OLD_FILES+=usr/lib/libf2c_p.a
	OLD_FILES+=usr/lib/libg++.a
	OLD_FILES+=usr/lib/libg++_p.a
	# 20001006
	OLD_FILES+=usr/bin/miniperl
	# 20000810
	OLD_FILES+=usr/bin/sperl
	# 200001XX
	OLD_FILES+=usr/sbin/apmconf
	## unsorted
	# do we still support aout builds?
	#OLD_FILES+=usr/lib/aout/c++rt0.o
	#OLD_FILES+=usr/lib/aout/crt0.o
	#OLD_FILES+=usr/lib/aout/gcrt0.o
	#OLD_FILES+=usr/lib/aout/scrt0.o
	#OLD_FILES+=usr/lib/aout/sgcrt0.o
	OLD_FILES+=usr/lib/pam_ftp.so
	OLD_FILES+=usr/share/man/man1/CA.pl.1.gz
	OLD_FILES+=usr/share/man/man1/asn1parse.1.gz
	OLD_FILES+=usr/share/man/man1/ca.1.gz
	OLD_FILES+=usr/share/man/man1/ciphers.1.gz
	OLD_FILES+=usr/share/man/man1/config.1.gz
	OLD_FILES+=usr/share/man/man1/crl.1.gz
	OLD_FILES+=usr/share/man/man1/crl2pkcs7.1.gz
	OLD_FILES+=usr/share/man/man1/dgst.1.gz
	OLD_FILES+=usr/share/man/man1/dhparam.1.gz
	OLD_FILES+=usr/share/man/man1/doscmd.1.gz
	OLD_FILES+=usr/share/man/man1/dsa.1.gz
	OLD_FILES+=usr/share/man/man1/dsaparam.1.gz
	OLD_FILES+=usr/share/man/man1/enc.1.gz
	OLD_FILES+=usr/share/man/man1/gendsa.1.gz
	OLD_FILES+=usr/share/man/man1/genrsa.1.gz
	OLD_FILES+=usr/share/man/man1/getNAME.1.gz
	OLD_FILES+=usr/share/man/man1/nseq.1.gz
	OLD_FILES+=usr/share/man/man1/ocsp.1.gz
	OLD_FILES+=usr/share/man/man1/openssl.1.gz
	OLD_FILES+=usr/share/man/man1/pkcs12.1.gz
	OLD_FILES+=usr/share/man/man1/pkcs7.1.gz
	OLD_FILES+=usr/share/man/man1/pkcs8.1.gz
	OLD_FILES+=usr/share/man/man1/rand.1.gz
	OLD_FILES+=usr/share/man/man1/req.1.gz
	OLD_FILES+=usr/share/man/man1/rsa.1.gz
	OLD_FILES+=usr/share/man/man1/rsautl.1.gz
	OLD_FILES+=usr/share/man/man1/s_client.1.gz
	OLD_FILES+=usr/share/man/man1/s_server.1.gz
	OLD_FILES+=usr/share/man/man1/sess_id.1.gz
	OLD_FILES+=usr/share/man/man1/smime.1.gz
	OLD_FILES+=usr/share/man/man1/speed.1.gz
	OLD_FILES+=usr/share/man/man1/spkac.1.gz
	OLD_FILES+=usr/share/man/man1/verify.1.gz
	OLD_FILES+=usr/share/man/man1/version.1.gz
	OLD_FILES+=usr/share/man/man1/x509.1.gz
	OLD_FILES+=usr/share/man/man3/SSL_COMP_add_compression_method.3.gz
	OLD_FILES+=usr/share/man/man3/SSL_CTX_get_ex_new_index.3.gz
	OLD_FILES+=usr/share/man/man3/archive_entry_dup.3.gz
	OLD_FILES+=usr/share/man/man3/archive_entry_set_tartype.3.gz
	OLD_FILES+=usr/share/man/man3/archive_entry_tartype.3.gz
	OLD_FILES+=usr/share/man/man3/archive_read_data_into_file.3.gz
	OLD_FILES+=usr/share/man/man3/archive_read_open_tar.3.gz
	OLD_FILES+=usr/share/man/man3/archive_read_support_format_gnutar.3.gz
	OLD_FILES+=usr/share/man/man3/cipher.3.gz
	OLD_FILES+=usr/share/man/man3/des_cipher.3.gz
	OLD_FILES+=usr/share/man/man3/des_setkey.3.gz
	OLD_FILES+=usr/share/man/man3/encrypt.3.gz
	OLD_FILES+=usr/share/man/man3/endvfsent.3.gz
	OLD_FILES+=usr/share/man/man3/getvfsbytype.3.gz
	OLD_FILES+=usr/share/man/man3/getvfsent.3.gz
	OLD_FILES+=usr/share/man/man3/isnanf.3.gz
	OLD_FILES+=usr/share/man/man3/libautofs.3.gz
	OLD_FILES+=usr/share/man/man3/pthread_attr_setsstack.3.gz
	OLD_FILES+=usr/share/man/man3/pthread_getcancelstate.3.gz
	OLD_FILES+=usr/share/man/man3/pthread_mutexattr_getpshared.3.gz
	OLD_FILES+=usr/share/man/man3/pthread_mutexattr_setpshared.3.gz
	OLD_FILES+=usr/share/man/man3/set_assertion_failure_callback.3.gz
	OLD_FILES+=usr/share/man/man3/setkey.3.gz
	OLD_FILES+=usr/share/man/man3/setvfsent.3.gz
	OLD_FILES+=usr/share/man/man3/ssl.3.gz
	OLD_FILES+=usr/share/man/man3/vfsisloadable.3.gz
	OLD_FILES+=usr/share/man/man3/vfsload.3.gz
	OLD_FILES+=usr/share/man/man4/als4000.4.gz
	OLD_FILES+=usr/share/man/man4/csa.4.gz
	OLD_FILES+=usr/share/man/man4/emu10k1.4.gz
	OLD_FILES+=usr/share/man/man4/euc.4.gz
	OLD_FILES+=usr/share/man/man4/gusc.4.gz
	OLD_FILES+=usr/share/man/man4/if_fwp.4.gz
	OLD_FILES+=usr/share/man/man4/lomac.4.gz
	OLD_FILES+=usr/share/man/man4/maestro3.4.gz
	OLD_FILES+=usr/share/man/man4/raid.4.gz
	OLD_FILES+=usr/share/man/man4/sbc.4.gz
	OLD_FILES+=usr/share/man/man4/sd.4.gz
	OLD_FILES+=usr/share/man/man4/snc.4.gz
	OLD_FILES+=usr/share/man/man4/st.4.gz
	OLD_FILES+=usr/share/man/man4/uaudio.4.gz
	OLD_FILES+=usr/share/man/man4/utf2.4.gz
	OLD_FILES+=usr/share/man/man4/vinumdebug.4.gz
	OLD_FILES+=usr/share/man/man5/disklabel.5.gz
	OLD_FILES+=usr/share/man/man5/dm.conf.5.gz
	OLD_FILES+=usr/share/man/man5/ranlib.5.gz
	OLD_FILES+=usr/share/man/man5/utf2.5.gz
	OLD_FILES+=usr/share/man/man7/groff_mwww.7.gz
	OLD_FILES+=usr/share/man/man7/mmroff.7.gz
	OLD_FILES+=usr/share/man/man7/mwww.7.gz
	OLD_FILES+=usr/share/man/man8/apm.8.gz
	OLD_FILES+=usr/share/man/man8/apmconf.8.gz
	OLD_FILES+=usr/share/man/man8/apmd.8.gz
	OLD_FILES+=usr/share/man/man8/dm.8.gz
	OLD_FILES+=usr/share/man/man8/pam_ftp.8.gz
	OLD_FILES+=usr/share/man/man8/pam_wheel.8.gz
	OLD_FILES+=usr/share/man/man8/sconfig.8.gz
	OLD_FILES+=usr/share/man/man8/ssl.8.gz
	OLD_FILES+=usr/share/man/man8/wlconfig.8.gz
	OLD_FILES+=usr/share/man/man9/CURSIG.9.gz
	OLD_FILES+=usr/share/man/man9/VFS_INIT.9.gz
	OLD_FILES+=usr/share/man/man9/at_exit.9.gz
	OLD_FILES+=usr/share/man/man9/at_fork.9.gz
	OLD_FILES+=usr/share/man/man9/cdevsw_add.9.gz
	OLD_FILES+=usr/share/man/man9/cdevsw_remove.9.gz
	OLD_FILES+=usr/share/man/man9/cv_waitq_empty.9.gz
	OLD_FILES+=usr/share/man/man9/cv_waitq_remove.9.gz
	OLD_FILES+=usr/share/man/man9/endtsleep.9.gz
	OLD_FILES+=usr/share/man/man9/jumbo.9.gz
	OLD_FILES+=usr/share/man/man9/jumbo_freem.9.gz
	OLD_FILES+=usr/share/man/man9/jumbo_pg_alloc.9.gz
	OLD_FILES+=usr/share/man/man9/jumbo_pg_free.9.gz
	OLD_FILES+=usr/share/man/man9/jumbo_pg_steal.9.gz
	OLD_FILES+=usr/share/man/man9/jumbo_phys_to_kva.9.gz
	OLD_FILES+=usr/share/man/man9/jumbo_vm_init.9.gz
	OLD_FILES+=usr/share/man/man9/mac_biba.9.gz
	OLD_FILES+=usr/share/man/man9/mac_bsdextended.9.gz
	OLD_FILES+=usr/share/man/man9/mono_time.9.gz
	OLD_FILES+=usr/share/man/man9/p1003_1b.9.gz
	OLD_FILES+=usr/share/man/man9/pmap_prefault.9.gz
	OLD_FILES+=usr/share/man/man9/posix4.9.gz
	OLD_FILES+=usr/share/man/man9/resource_query_name.9.gz
	OLD_FILES+=usr/share/man/man9/resource_query_string.9.gz
	OLD_FILES+=usr/share/man/man9/resource_query_unit.9.gz
	OLD_FILES+=usr/share/man/man9/rm_at_exit.9.gz
	OLD_FILES+=usr/share/man/man9/rm_at_fork.9.gz
	OLD_FILES+=usr/share/man/man9/runtime.9.gz
	OLD_FILES+=usr/share/man/man9/sleepinit.9.gz
	OLD_FILES+=usr/share/man/man9/unsleep.9.gz
	OLD_FILES+=usr/share/games/atc/Game_List
	OLD_FILES+=usr/share/games/atc/Killer
	OLD_FILES+=usr/share/games/atc/crossover
	OLD_FILES+=usr/share/games/atc/default
	OLD_FILES+=usr/share/games/atc/easy
	OLD_FILES+=usr/share/games/atc/game_2
	OLD_FILES+=usr/share/games/larn/larnmaze
	OLD_FILES+=usr/share/games/larn/larnopts
	OLD_FILES+=usr/share/games/larn/larn.help
	OLD_FILES+=usr/share/games/quiz.db/africa
	OLD_FILES+=usr/share/games/quiz.db/america
	OLD_FILES+=usr/share/games/quiz.db/areas
	OLD_FILES+=usr/share/games/quiz.db/arith
	OLD_FILES+=usr/share/games/quiz.db/asia
	OLD_FILES+=usr/share/games/quiz.db/babies
	OLD_FILES+=usr/share/games/quiz.db/bard
	OLD_FILES+=usr/share/games/quiz.db/chinese
	OLD_FILES+=usr/share/games/quiz.db/collectives
	OLD_FILES+=usr/share/games/quiz.db/ed
	OLD_FILES+=usr/share/games/quiz.db/elements
	OLD_FILES+=usr/share/games/quiz.db/europe
	OLD_FILES+=usr/share/games/quiz.db/flowers
	OLD_FILES+=usr/share/games/quiz.db/greek
	OLD_FILES+=usr/share/games/quiz.db/inca
	OLD_FILES+=usr/share/games/quiz.db/index
	OLD_FILES+=usr/share/games/quiz.db/latin
	OLD_FILES+=usr/share/games/quiz.db/locomotive
	OLD_FILES+=usr/share/games/quiz.db/midearth
	OLD_FILES+=usr/share/games/quiz.db/morse
	OLD_FILES+=usr/share/games/quiz.db/murders
	OLD_FILES+=usr/share/games/quiz.db/poetry
	OLD_FILES+=usr/share/games/quiz.db/posneg
	OLD_FILES+=usr/share/games/quiz.db/pres
	OLD_FILES+=usr/share/games/quiz.db/province
	OLD_FILES+=usr/share/games/quiz.db/seq-easy
	OLD_FILES+=usr/share/games/quiz.db/seq-hard
	OLD_FILES+=usr/share/games/quiz.db/sexes
	OLD_FILES+=usr/share/games/quiz.db/sov
	OLD_FILES+=usr/share/games/quiz.db/spell
	OLD_FILES+=usr/share/games/quiz.db/state
	OLD_FILES+=usr/share/games/quiz.db/trek
	OLD_FILES+=usr/share/games/quiz.db/ucc
	OLD_FILES+=usr/share/games/cribbage.instr
	OLD_FILES+=usr/share/games/fish.instr
	OLD_FILES+=usr/share/games/wump.info
	OLD_FILES+=usr/games/hide/adventure
	OLD_FILES+=usr/games/hide/arithmetic
	OLD_FILES+=usr/games/hide/atc
	OLD_FILES+=usr/games/hide/backgammon
	OLD_FILES+=usr/games/hide/teachgammon
	OLD_FILES+=usr/games/hide/battlestar
	OLD_FILES+=usr/games/hide/bs
	OLD_FILES+=usr/games/hide/canfield
	OLD_FILES+=usr/games/hide/cribbage
	OLD_FILES+=usr/games/hide/fish
	OLD_FILES+=usr/games/hide/hack
	OLD_FILES+=usr/games/hide/hangman
	OLD_FILES+=usr/games/hide/larn
	OLD_FILES+=usr/games/hide/mille
	OLD_FILES+=usr/games/hide/phantasia
	OLD_FILES+=usr/games/hide/quiz
	OLD_FILES+=usr/games/hide/robots
	OLD_FILES+=usr/games/hide/rogue
	OLD_FILES+=usr/games/hide/sail
	OLD_FILES+=usr/games/hide/snake
	OLD_FILES+=usr/games/hide/trek
	OLD_FILES+=usr/games/hide/worm
	OLD_FILES+=usr/games/hide/wump
	OLD_FILES+=usr/games/adventure
	OLD_FILES+=usr/games/arithmetic
	OLD_FILES+=usr/games/atc
	OLD_FILES+=usr/games/backgammon
	OLD_FILES+=usr/games/teachgammon
	OLD_FILES+=usr/games/battlestar
	OLD_FILES+=usr/games/bs
	OLD_FILES+=usr/games/canfield
	OLD_FILES+=usr/games/cfscores
	OLD_FILES+=usr/games/cribbage
	OLD_FILES+=usr/games/dm
	OLD_FILES+=usr/games/fish
	OLD_FILES+=usr/games/hack
	OLD_FILES+=usr/games/hangman
	OLD_FILES+=usr/games/larn
	OLD_FILES+=usr/games/mille
	OLD_FILES+=usr/games/phantasia
	OLD_FILES+=usr/games/piano
	OLD_FILES+=usr/games/pig
	OLD_FILES+=usr/games/quiz
	OLD_FILES+=usr/games/rain
	OLD_FILES+=usr/games/robots
	OLD_FILES+=usr/games/rogue
	OLD_FILES+=usr/games/sail
	OLD_FILES+=usr/games/snake
	OLD_FILES+=usr/games/snscore
	OLD_FILES+=usr/games/trek
	OLD_FILES+=usr/games/wargames
	OLD_FILES+=usr/games/worm
	OLD_FILES+=usr/games/worms
	OLD_FILES+=usr/games/wump
	OLD_FILES+=sbin/mount_reiserfs
	OLD_FILES+=usr/include/cam/cam_extend.h
	OLD_FILES+=usr/include/dev/wi/wi_hostap.h
	OLD_FILES+=usr/include/disktab.h
	OLD_FILES+=usr/include/g++/FlexLexer.h
	OLD_FILES+=usr/include/g++/PlotFile.h
	OLD_FILES+=usr/include/g++/SFile.h
	OLD_FILES+=usr/include/g++/_G_config.h
	OLD_FILES+=usr/include/g++/algo.h
	OLD_FILES+=usr/include/g++/algobase.h
	OLD_FILES+=usr/include/g++/algorithm
	OLD_FILES+=usr/include/g++/alloc.h
	OLD_FILES+=usr/include/g++/bitset
	OLD_FILES+=usr/include/g++/builtinbuf.h
	OLD_FILES+=usr/include/g++/bvector.h
	OLD_FILES+=usr/include/g++/cassert
	OLD_FILES+=usr/include/g++/cctype
	OLD_FILES+=usr/include/g++/cerrno
	OLD_FILES+=usr/include/g++/cfloat
	OLD_FILES+=usr/include/g++/ciso646
	OLD_FILES+=usr/include/g++/climits
	OLD_FILES+=usr/include/g++/clocale
	OLD_FILES+=usr/include/g++/cmath
	OLD_FILES+=usr/include/g++/complex
	OLD_FILES+=usr/include/g++/complex.h
	OLD_FILES+=usr/include/g++/csetjmp
	OLD_FILES+=usr/include/g++/csignal
	OLD_FILES+=usr/include/g++/cstdarg
	OLD_FILES+=usr/include/g++/cstddef
	OLD_FILES+=usr/include/g++/cstdio
	OLD_FILES+=usr/include/g++/cstdlib
	OLD_FILES+=usr/include/g++/cstring
	OLD_FILES+=usr/include/g++/ctime
	OLD_FILES+=usr/include/g++/cwchar
	OLD_FILES+=usr/include/g++/cwctype
	OLD_FILES+=usr/include/g++/defalloc.h
	OLD_FILES+=usr/include/g++/deque
	OLD_FILES+=usr/include/g++/deque.h
	OLD_FILES+=usr/include/g++/editbuf.h
	OLD_FILES+=usr/include/g++/exception
	OLD_FILES+=usr/include/g++/floatio.h
	OLD_FILES+=usr/include/g++/fstream
	OLD_FILES+=usr/include/g++/fstream.h
	OLD_FILES+=usr/include/g++/function.h
	OLD_FILES+=usr/include/g++/functional
	OLD_FILES+=usr/include/g++/hash_map
	OLD_FILES+=usr/include/g++/hash_map.h
	OLD_FILES+=usr/include/g++/hash_set
	OLD_FILES+=usr/include/g++/hash_set.h
	OLD_FILES+=usr/include/g++/hashtable.h
	OLD_FILES+=usr/include/g++/heap.h
	OLD_FILES+=usr/include/g++/indstream.h
	OLD_FILES+=usr/include/g++/iolibio.h
	OLD_FILES+=usr/include/g++/iomanip
	OLD_FILES+=usr/include/g++/iomanip.h
	OLD_FILES+=usr/include/g++/iosfwd
	OLD_FILES+=usr/include/g++/iostdio.h
	OLD_FILES+=usr/include/g++/iostream
	OLD_FILES+=usr/include/g++/iostream.h
	OLD_FILES+=usr/include/g++/iostreamP.h
	OLD_FILES+=usr/include/g++/istream.h
	OLD_FILES+=usr/include/g++/iterator
	OLD_FILES+=usr/include/g++/iterator.h
	OLD_FILES+=usr/include/g++/libio.h
	OLD_FILES+=usr/include/g++/libioP.h
	OLD_FILES+=usr/include/g++/list
	OLD_FILES+=usr/include/g++/list.h
	OLD_FILES+=usr/include/g++/map
	OLD_FILES+=usr/include/g++/map.h
	OLD_FILES+=usr/include/g++/memory
	OLD_FILES+=usr/include/g++/multimap.h
	OLD_FILES+=usr/include/g++/multiset.h
	OLD_FILES+=usr/include/g++/new
	OLD_FILES+=usr/include/g++/new.h
	OLD_FILES+=usr/include/g++/numeric
	OLD_FILES+=usr/include/g++/ostream.h
	OLD_FILES+=usr/include/g++/pair.h
	OLD_FILES+=usr/include/g++/parsestream.h
	OLD_FILES+=usr/include/g++/pfstream.h
	OLD_FILES+=usr/include/g++/procbuf.h
	OLD_FILES+=usr/include/g++/pthread_alloc
	OLD_FILES+=usr/include/g++/pthread_alloc.h
	OLD_FILES+=usr/include/g++/queue
	OLD_FILES+=usr/include/g++/rope
	OLD_FILES+=usr/include/g++/rope.h
	OLD_FILES+=usr/include/g++/ropeimpl.h
	OLD_FILES+=usr/include/g++/set
	OLD_FILES+=usr/include/g++/set.h
	OLD_FILES+=usr/include/g++/slist
	OLD_FILES+=usr/include/g++/slist.h
	OLD_FILES+=usr/include/g++/sstream
	OLD_FILES+=usr/include/g++/stack
	OLD_FILES+=usr/include/g++/stack.h
	OLD_FILES+=usr/include/g++/std/bastring.cc
	OLD_FILES+=usr/include/g++/std/bastring.h
	OLD_FILES+=usr/include/g++/std/complext.cc
	OLD_FILES+=usr/include/g++/std/complext.h
	OLD_FILES+=usr/include/g++/std/dcomplex.h
	OLD_FILES+=usr/include/g++/std/fcomplex.h
	OLD_FILES+=usr/include/g++/std/gslice.h
	OLD_FILES+=usr/include/g++/std/gslice_array.h
	OLD_FILES+=usr/include/g++/std/indirect_array.h
	OLD_FILES+=usr/include/g++/std/ldcomplex.h
	OLD_FILES+=usr/include/g++/std/mask_array.h
	OLD_FILES+=usr/include/g++/std/slice.h
	OLD_FILES+=usr/include/g++/std/slice_array.h
	OLD_FILES+=usr/include/g++/std/std_valarray.h
	OLD_FILES+=usr/include/g++/std/straits.h
	OLD_FILES+=usr/include/g++/std/valarray_array.h
	OLD_FILES+=usr/include/g++/std/valarray_array.tcc
	OLD_FILES+=usr/include/g++/std/valarray_meta.h
	OLD_FILES+=usr/include/g++/stdexcept
	OLD_FILES+=usr/include/g++/stdiostream.h
	OLD_FILES+=usr/include/g++/stl.h
	OLD_FILES+=usr/include/g++/stl_algo.h
	OLD_FILES+=usr/include/g++/stl_algobase.h
	OLD_FILES+=usr/include/g++/stl_alloc.h
	OLD_FILES+=usr/include/g++/stl_bvector.h
	OLD_FILES+=usr/include/g++/stl_config.h
	OLD_FILES+=usr/include/g++/stl_construct.h
	OLD_FILES+=usr/include/g++/stl_deque.h
	OLD_FILES+=usr/include/g++/stl_function.h
	OLD_FILES+=usr/include/g++/stl_hash_fun.h
	OLD_FILES+=usr/include/g++/stl_hash_map.h
	OLD_FILES+=usr/include/g++/stl_hash_set.h
	OLD_FILES+=usr/include/g++/stl_hashtable.h
	OLD_FILES+=usr/include/g++/stl_heap.h
	OLD_FILES+=usr/include/g++/stl_iterator.h
	OLD_FILES+=usr/include/g++/stl_list.h
	OLD_FILES+=usr/include/g++/stl_map.h
	OLD_FILES+=usr/include/g++/stl_multimap.h
	OLD_FILES+=usr/include/g++/stl_multiset.h
	OLD_FILES+=usr/include/g++/stl_numeric.h
	OLD_FILES+=usr/include/g++/stl_pair.h
	OLD_FILES+=usr/include/g++/stl_queue.h
	OLD_FILES+=usr/include/g++/stl_raw_storage_iter.h
	OLD_FILES+=usr/include/g++/stl_relops.h
	OLD_FILES+=usr/include/g++/stl_rope.h
	OLD_FILES+=usr/include/g++/stl_set.h
	OLD_FILES+=usr/include/g++/stl_slist.h
	OLD_FILES+=usr/include/g++/stl_stack.h
	OLD_FILES+=usr/include/g++/stl_tempbuf.h
	OLD_FILES+=usr/include/g++/stl_tree.h
	OLD_FILES+=usr/include/g++/stl_uninitialized.h
	OLD_FILES+=usr/include/g++/stl_vector.h
	OLD_FILES+=usr/include/g++/stream.h
	OLD_FILES+=usr/include/g++/streambuf.h
	OLD_FILES+=usr/include/g++/strfile.h
	OLD_FILES+=usr/include/g++/string
	OLD_FILES+=usr/include/g++/strstream
	OLD_FILES+=usr/include/g++/strstream.h
	OLD_FILES+=usr/include/g++/tempbuf.h
	OLD_FILES+=usr/include/g++/tree.h
	OLD_FILES+=usr/include/g++/type_traits.h
	OLD_FILES+=usr/include/g++/typeinfo
	OLD_FILES+=usr/include/g++/utility
	OLD_FILES+=usr/include/g++/valarray
	OLD_FILES+=usr/include/g++/vector
	OLD_FILES+=usr/include/g++/vector.h
	OLD_FILES+=usr/include/gmp.h
	OLD_FILES+=usr/include/isc/assertions.h
	OLD_FILES+=usr/include/isc/ctl.h
	OLD_FILES+=usr/include/isc/dst.h
	OLD_FILES+=usr/include/isc/eventlib.h
	OLD_FILES+=usr/include/isc/heap.h
	OLD_FILES+=usr/include/isc/irpmarshall.h
	OLD_FILES+=usr/include/isc/list.h
	OLD_FILES+=usr/include/isc/logging.h
	OLD_FILES+=usr/include/isc/memcluster.h
	OLD_FILES+=usr/include/isc/misc.h
	OLD_FILES+=usr/include/isc/tree.h
	OLD_FILES+=usr/include/machine/ansi.h
	OLD_FILES+=usr/include/machine/apic.h
	OLD_FILES+=usr/include/machine/asc_ioctl.h
	OLD_FILES+=usr/include/machine/asnames.h
	OLD_FILES+=usr/include/machine/bus_at386.h
	OLD_FILES+=usr/include/machine/bus_memio.h
	OLD_FILES+=usr/include/machine/bus_pc98.h
	OLD_FILES+=usr/include/machine/bus_pio.h
	OLD_FILES+=usr/include/machine/cdk.h
	OLD_FILES+=usr/include/machine/comstats.h
	OLD_FILES+=usr/include/machine/console.h
	OLD_FILES+=usr/include/machine/critical.h
	OLD_FILES+=usr/include/machine/cronyx.h
	OLD_FILES+=usr/include/machine/dvcfg.h
	OLD_FILES+=usr/include/machine/globaldata.h
	OLD_FILES+=usr/include/machine/globals.h
	OLD_FILES+=usr/include/machine/gsc.h
	OLD_FILES+=usr/include/machine/i4b_isppp.h
	OLD_FILES+=usr/include/machine/if_wavelan_ieee.h
	OLD_FILES+=usr/include/machine/iic.h
	OLD_FILES+=usr/include/machine/ioctl_ctx.h
	OLD_FILES+=usr/include/machine/ioctl_fd.h
	OLD_FILES+=usr/include/machine/ipl.h
	OLD_FILES+=usr/include/machine/lock.h
	OLD_FILES+=usr/include/machine/mouse.h
	OLD_FILES+=usr/include/machine/mpapic.h
	OLD_FILES+=usr/include/machine/mtpr.h
	OLD_FILES+=usr/include/machine/pc/msdos.h
	OLD_FILES+=usr/include/machine/physio_proc.h
	OLD_FILES+=usr/include/machine/smb.h
	OLD_FILES+=usr/include/machine/spigot.h
	OLD_FILES+=usr/include/machine/types.h
	OLD_FILES+=usr/include/machine/uc_device.h
	OLD_FILES+=usr/include/machine/ultrasound.h
	OLD_FILES+=usr/include/machine/wtio.h
	OLD_FILES+=usr/include/msdosfs/bootsect.h
	OLD_FILES+=usr/include/msdosfs/bpb.h
	OLD_FILES+=usr/include/msdosfs/denode.h
	OLD_FILES+=usr/include/msdosfs/direntry.h
	OLD_FILES+=usr/include/msdosfs/fat.h
	OLD_FILES+=usr/include/msdosfs/msdosfsmount.h
	OLD_FILES+=usr/include/net/hostcache.h
	OLD_FILES+=usr/include/net/if_faith.h
	OLD_FILES+=usr/include/net/if_ieee80211.h
	OLD_FILES+=usr/include/net/if_tunvar.h
	OLD_FILES+=usr/include/net/intrq.h
	OLD_FILES+=usr/include/netatm/kern_include.h
	OLD_FILES+=usr/include/netinet/if_fddi.h
	OLD_FILES+=usr/include/netinet/in_hostcache.h
	OLD_FILES+=usr/include/netinet/ip_flow.h
	OLD_FILES+=usr/include/netinet/ip_fw2.h
	OLD_FILES+=usr/include/netinet6/in6_prefix.h
	OLD_FILES+=usr/include/netns/idp.h
	OLD_FILES+=usr/include/netns/idp_var.h
	OLD_FILES+=usr/include/netns/ns.h
	OLD_FILES+=usr/include/netns/ns_error.h
	OLD_FILES+=usr/include/netns/ns_if.h
	OLD_FILES+=usr/include/netns/ns_pcb.h
	OLD_FILES+=usr/include/netns/sp.h
	OLD_FILES+=usr/include/netns/spidp.h
	OLD_FILES+=usr/include/netns/spp_debug.h
	OLD_FILES+=usr/include/netns/spp_timer.h
	OLD_FILES+=usr/include/netns/spp_var.h
	OLD_FILES+=usr/include/nfs/nfs.h
	OLD_FILES+=usr/include/nfs/nfsm_subs.h
	OLD_FILES+=usr/include/nfs/nfsmount.h
	OLD_FILES+=usr/include/nfs/nfsnode.h
	OLD_FILES+=usr/include/nfs/nfsrtt.h
	OLD_FILES+=usr/include/nfs/nfsrvcache.h
	OLD_FILES+=usr/include/nfs/nfsv2.h
	OLD_FILES+=usr/include/nfs/nqnfs.h
	OLD_FILES+=usr/include/ntfs/ntfs.h
	OLD_FILES+=usr/include/ntfs/ntfs_compr.h
	OLD_FILES+=usr/include/ntfs/ntfs_ihash.h
	OLD_FILES+=usr/include/ntfs/ntfs_inode.h
	OLD_FILES+=usr/include/ntfs/ntfs_subr.h
	OLD_FILES+=usr/include/ntfs/ntfs_vfsops.h
	OLD_FILES+=usr/include/ntfs/ntfsmount.h
	OLD_FILES+=usr/include/nwfs/nwfs.h
	OLD_FILES+=usr/include/nwfs/nwfs_mount.h
	OLD_FILES+=usr/include/nwfs/nwfs_node.h
	OLD_FILES+=usr/include/nwfs/nwfs_subr.h
	OLD_FILES+=usr/include/posix4/_semaphore.h
	OLD_FILES+=usr/include/posix4/aio.h
	OLD_FILES+=usr/include/posix4/ksem.h
	OLD_FILES+=usr/include/posix4/mqueue.h
	OLD_FILES+=usr/include/posix4/posix4.h
	OLD_FILES+=usr/include/posix4/sched.h
	OLD_FILES+=usr/include/posix4/semaphore.h
	OLD_DIRS+=usr/include/posix4
	OLD_FILES+=usr/include/security/_pam_compat.h
	OLD_FILES+=usr/include/security/_pam_macros.h
	OLD_FILES+=usr/include/security/_pam_types.h
	OLD_FILES+=usr/include/security/pam_malloc.h
	OLD_FILES+=usr/include/security/pam_misc.h
	OLD_FILES+=usr/include/skey.h
	OLD_FILES+=usr/include/strhash.h
	OLD_FILES+=usr/include/struct.h
	OLD_FILES+=usr/include/sys/_label.h
	OLD_FILES+=usr/include/sys/_posix.h
	OLD_FILES+=usr/include/sys/bus_private.h
	OLD_FILES+=usr/include/sys/ccdvar.h
	OLD_FILES+=usr/include/sys/diskslice.h
	OLD_FILES+=usr/include/sys/dmap.h
	OLD_FILES+=usr/include/sys/inttypes.h
	OLD_FILES+=usr/include/sys/jumbo.h
	OLD_FILES+=usr/include/sys/mac_policy.h
	OLD_FILES+=usr/include/sys/pbioio.h
	OLD_FILES+=usr/include/sys/syscall-hide.h
	OLD_FILES+=usr/include/sys/tprintf.h
	OLD_FILES+=usr/include/sys/vnioctl.h
	OLD_FILES+=usr/include/sys/wormio.h
	OLD_FILES+=usr/include/telnet.h
	OLD_FILES+=usr/include/ufs/mfs/mfs_extern.h
	OLD_FILES+=usr/include/ufs/mfs/mfsnode.h
	OLD_FILES+=usr/include/values.h
	OLD_FILES+=usr/include/vm/vm_zone.h
	OLD_FILES+=usr/share/examples/etc/usbd.conf
	OLD_FILES+=usr/share/examples/meteor/README
	OLD_FILES+=usr/share/examples/meteor/rgb16.c
	OLD_FILES+=usr/share/examples/meteor/rgb24.c
	OLD_FILES+=usr/share/examples/meteor/test-n.c
	OLD_FILES+=usr/share/examples/meteor/yuvpk.c
	OLD_FILES+=usr/share/examples/meteor/yuvpl.c
	OLD_FILES+=usr/share/examples/worm/README
	OLD_FILES+=usr/share/examples/worm/makecdfs.sh
	OLD_FILES+=usr/share/groff_font/devlj4/Makefile
	OLD_FILES+=usr/share/groff_font/devlj4/text.map
	OLD_FILES+=usr/share/groff_font/devlj4/special.map
	OLD_FILES+=usr/share/misc/nslookup.help
	OLD_FILES+=usr/share/sendmail/cf/feature/nodns.m4
	OLD_FILES+=usr/share/syscons/keymaps/lat-amer.kbd
	OLD_FILES+=usr/share/vi/catalog/ru_SU.KOI8-R
	OLD_FILES+=usr/share/zoneinfo/SystemV/YST9
	OLD_FILES+=usr/share/zoneinfo/SystemV/PST8
	OLD_FILES+=usr/share/zoneinfo/SystemV/EST5EDT
	OLD_FILES+=usr/share/zoneinfo/SystemV/CST6CDT
	OLD_FILES+=usr/share/zoneinfo/SystemV/MST7MDT
	OLD_FILES+=usr/share/zoneinfo/SystemV/PST8PDT
	OLD_FILES+=usr/share/zoneinfo/SystemV/YST9YDT
	OLD_FILES+=usr/share/zoneinfo/SystemV/HST10
	OLD_FILES+=usr/share/zoneinfo/SystemV/MST7
	OLD_FILES+=usr/share/zoneinfo/SystemV/EST5
	OLD_FILES+=usr/share/zoneinfo/SystemV/AST4ADT
	OLD_FILES+=usr/share/zoneinfo/SystemV/CST6
	OLD_FILES+=usr/share/zoneinfo/SystemV/AST4
	OLD_FILES+=usr/share/doc/ntp/accopt.htm
	OLD_FILES+=usr/share/doc/ntp/assoc.htm
	OLD_FILES+=usr/share/doc/ntp/audio.htm
	OLD_FILES+=usr/share/doc/ntp/authopt.htm
	OLD_FILES+=usr/share/doc/ntp/biblio.htm
	OLD_FILES+=usr/share/doc/ntp/build.htm
	OLD_FILES+=usr/share/doc/ntp/clockopt.htm
	OLD_FILES+=usr/share/doc/ntp/config.htm
	OLD_FILES+=usr/share/doc/ntp/confopt.htm
	OLD_FILES+=usr/share/doc/ntp/copyright.htm
	OLD_FILES+=usr/share/doc/ntp/debug.htm
	OLD_FILES+=usr/share/doc/ntp/driver1.htm
	OLD_FILES+=usr/share/doc/ntp/driver10.htm
	OLD_FILES+=usr/share/doc/ntp/driver11.htm
	OLD_FILES+=usr/share/doc/ntp/driver12.htm
	OLD_FILES+=usr/share/doc/ntp/driver16.htm
	OLD_FILES+=usr/share/doc/ntp/driver18.htm
	OLD_FILES+=usr/share/doc/ntp/driver19.htm
	OLD_FILES+=usr/share/doc/ntp/driver2.htm
	OLD_FILES+=usr/share/doc/ntp/driver20.htm
	OLD_FILES+=usr/share/doc/ntp/driver22.htm
	OLD_FILES+=usr/share/doc/ntp/driver23.htm
	OLD_FILES+=usr/share/doc/ntp/driver24.htm
	OLD_FILES+=usr/share/doc/ntp/driver26.htm
	OLD_FILES+=usr/share/doc/ntp/driver27.htm
	OLD_FILES+=usr/share/doc/ntp/driver28.htm
	OLD_FILES+=usr/share/doc/ntp/driver29.htm
	OLD_FILES+=usr/share/doc/ntp/driver3.htm
	OLD_FILES+=usr/share/doc/ntp/driver30.htm
	OLD_FILES+=usr/share/doc/ntp/driver32.htm
	OLD_FILES+=usr/share/doc/ntp/driver33.htm
	OLD_FILES+=usr/share/doc/ntp/driver34.htm
	OLD_FILES+=usr/share/doc/ntp/driver35.htm
	OLD_FILES+=usr/share/doc/ntp/driver36.htm
	OLD_FILES+=usr/share/doc/ntp/driver37.htm
	OLD_FILES+=usr/share/doc/ntp/driver4.htm
	OLD_FILES+=usr/share/doc/ntp/driver5.htm
	OLD_FILES+=usr/share/doc/ntp/driver6.htm
	OLD_FILES+=usr/share/doc/ntp/driver7.htm
	OLD_FILES+=usr/share/doc/ntp/driver8.htm
	OLD_FILES+=usr/share/doc/ntp/driver9.htm
	OLD_FILES+=usr/share/doc/ntp/exec.htm
	OLD_FILES+=usr/share/doc/ntp/extern.htm
	OLD_FILES+=usr/share/doc/ntp/gadget.htm
	OLD_FILES+=usr/share/doc/ntp/hints.htm
	OLD_FILES+=usr/share/doc/ntp/howto.htm
	OLD_FILES+=usr/share/doc/ntp/htmlprimer.htm
	OLD_FILES+=usr/share/doc/ntp/index.htm
	OLD_FILES+=usr/share/doc/ntp/kern.htm
	OLD_FILES+=usr/share/doc/ntp/kernpps.htm
	OLD_FILES+=usr/share/doc/ntp/ldisc.htm
	OLD_FILES+=usr/share/doc/ntp/measure.htm
	OLD_FILES+=usr/share/doc/ntp/miscopt.htm
	OLD_FILES+=usr/share/doc/ntp/monopt.htm
	OLD_FILES+=usr/share/doc/ntp/mx4200data.htm
	OLD_FILES+=usr/share/doc/ntp/notes.htm
	OLD_FILES+=usr/share/doc/ntp/ntpd.htm
	OLD_FILES+=usr/share/doc/ntp/ntpdate.htm
	OLD_FILES+=usr/share/doc/ntp/ntpdc.htm
	OLD_FILES+=usr/share/doc/ntp/ntpq.htm
	OLD_FILES+=usr/share/doc/ntp/ntptime.htm
	OLD_FILES+=usr/share/doc/ntp/ntptrace.htm
	OLD_FILES+=usr/share/doc/ntp/parsedata.htm
	OLD_FILES+=usr/share/doc/ntp/parsenew.htm
	OLD_FILES+=usr/share/doc/ntp/patches.htm
	OLD_FILES+=usr/share/doc/ntp/porting.htm
	OLD_FILES+=usr/share/doc/ntp/pps.htm
	OLD_FILES+=usr/share/doc/ntp/prefer.htm
	OLD_FILES+=usr/share/doc/ntp/qth.htm
	OLD_FILES+=usr/share/doc/ntp/quick.htm
	OLD_FILES+=usr/share/doc/ntp/rdebug.htm
	OLD_FILES+=usr/share/doc/ntp/refclock.htm
	OLD_FILES+=usr/share/doc/ntp/release.htm
	OLD_FILES+=usr/share/doc/ntp/tickadj.htm
	OLD_FILES+=usr/share/doc/papers/nqnfs.ascii.gz
	OLD_FILES+=usr/share/doc/papers/px.ascii.gz
	OLD_FILES+=usr/share/man/man3/exp10.3.gz
	OLD_FILES+=usr/share/man/man3/exp10f.3.gz
	OLD_FILES+=usr/share/man/man3/fpsetsticky.3.gz
	OLD_FILES+=usr/share/man/man3/gss_krb5_compat_des3_mic.3.gz
	OLD_FILES+=usr/share/man/man3/gss_krb5_copy_ccache.3.gz
	OLD_FILES+=usr/share/man/man3/mac_is_present_np.3.gz
	OLD_FILES+=usr/share/man/man3/mbmb.3.gz
	OLD_FILES+=usr/share/man/man3/setrunelocale.3.gz
	OLD_FILES+=usr/share/man/man5/usbd.conf.5.gz
	.if ${TARGET_ARCH} != "i386" && ${TARGET_ARCH} != "amd64"
	OLD_FILES+=usr/share/man/man8/boot_i386.8.gz
	.endif
	.if ${TARGET_ARCH} != "aarch64" && ${TARGET} != "arm" && \
	${TARGET_ARCH} != "powerpc" && ${TARGET_ARCH} != "powerpc64" && \
	${TARGET_ARCH} != "sparc64" && ${TARGET} != "mips"
	OLD_FILES+=usr/share/man/man8/ofwdump.8.gz
	.endif
	OLD_FILES+=usr/share/man/man8/mount_reiserfs.8.gz
	OLD_FILES+=usr/share/man/man9/VFS_START.9.gz
	OLD_FILES+=usr/share/man/man9/cpu_critical_exit.9.gz
	OLD_FILES+=usr/share/man/man9/cpu_critical_enter.9.gz
	OLD_FILES+=usr/share/info/annotate.info.gz
	OLD_FILES+=usr/share/info/tar.info.gz
	OLD_FILES+=usr/share/bsnmp/defs/tree.def
	OLD_FILES+=usr/share/bsnmp/defs/mibII_tree.def
	OLD_FILES+=usr/share/bsnmp/defs/netgraph_tree.def
	OLD_FILES+=usr/share/bsnmp/mibs/FOKUS-MIB.txt
	OLD_FILES+=usr/share/bsnmp/mibs/BEGEMOT-MIB.txt
	OLD_FILES+=usr/share/bsnmp/mibs/BEGEMOT-SNMPD.txt
	OLD_FILES+=usr/share/bsnmp/mibs/BEGEMOT-NETGRAPH.txt
	OLD_FILES+=usr/libdata/msdosfs/iso22dos
	OLD_FILES+=usr/libdata/msdosfs/iso72dos
	OLD_FILES+=usr/libdata/msdosfs/koi2dos
	OLD_FILES+=usr/libdata/msdosfs/koi8u2dos
	# The following files are not obsolete, they just don't get touched at
	# install, so don't add them:
	# - boot/loader.rc
	# - usr/share/tmac/man.local
	# - usr/share/tmac/mm/locale
	# - usr/share/tmac/mm/se_locale
	# - var/yp/Makefile

	# Early entries split OLD_FILES, OLD_LIBS, and OLD_DIRS into separate sections
	# in this file, but this practice was abandoned in the mid-2000s.
	#
	# 20071120: shared library version bump
	OLD_LIBS+=usr/lib/libasn1.so.8
	OLD_LIBS+=usr/lib/libgssapi.so.8
	OLD_LIBS+=usr/lib/libgssapi_krb5.so.8
	OLD_LIBS+=usr/lib/libhdb.so.8
	OLD_LIBS+=usr/lib/libkadm5clnt.so.8
	OLD_LIBS+=usr/lib/libkadm5srv.so.8
	OLD_LIBS+=usr/lib/libkafs5.so.8
	OLD_LIBS+=usr/lib/libkrb5.so.8
	OLD_LIBS+=usr/lib/libobjc.so.2
	OLD_LIBS+=usr/lib32/libgssapi.so.8
	OLD_LIBS+=usr/lib32/libobjc.so.2
	# 20070519: GCC 4.2
	OLD_LIBS+=usr/lib/libg2c.a
	OLD_LIBS+=usr/lib/libg2c.so
	OLD_LIBS+=usr/lib/libg2c.so.2
	OLD_LIBS+=usr/lib/libg2c_p.a
	OLD_LIBS+=usr/lib/libgcc_pic.a
	OLD_LIBS+=usr/lib32/libg2c.a
	OLD_LIBS+=usr/lib32/libg2c.so
	OLD_LIBS+=usr/lib32/libg2c.so.2
	OLD_LIBS+=usr/lib32/libg2c_p.a
	OLD_LIBS+=usr/lib32/libgcc_pic.a
	# 20060729: OpenSSL 0.9.7e -> 0.9.8b upgrade
	OLD_LIBS+=lib/libcrypto.so.4
	OLD_LIBS+=usr/lib/libssl.so.4
	OLD_LIBS+=usr/lib32/libcrypto.so.4
	OLD_LIBS+=usr/lib32/libssl.so.4
	# 20060521: gethostbyaddr(3) ABI change
	OLD_LIBS+=usr/lib/libroken.so.8
	OLD_LIBS+=lib/libatm.so.3
	OLD_LIBS+=lib/libc.so.6
	OLD_LIBS+=lib/libutil.so.5
	OLD_LIBS+=usr/lib32/libatm.so.3
	OLD_LIBS+=usr/lib32/libc.so.6
	OLD_LIBS+=usr/lib32/libutil.so.5
	# 20060413: shared library moved to /usr/lib
	OLD_LIBS+=lib/libgpib.so.1
	# 20060413: libpcap.so.4 moved to /lib/
	OLD_LIBS+=usr/lib/libpcap.so.4
	# 20060412: libpthread.so.2 moved to /lib/
	OLD_LIBS+=usr/lib/libpthread.so.2
	# 20060127: revert libdisk to static-only
	OLD_LIBS+=usr/lib/libdisk.so.3
	# 20051027: libc_r discontinued (removed 20101113)
	OLD_LIBS+=usr/lib/libc_r.a
	OLD_LIBS+=usr/lib/libc_r.so
	OLD_LIBS+=usr/lib/libc_r.so.7
	OLD_LIBS+=usr/lib/libc_r_p.a
	OLD_LIBS+=usr/lib32/libc_r.a
	OLD_LIBS+=usr/lib32/libc_r.so
	OLD_LIBS+=usr/lib32/libc_r.so.7
	OLD_LIBS+=usr/lib32/libc_r_p.a
	# 20050722: bump for 6.0-RELEASE
	OLD_LIBS+=lib/libalias.so.4
	OLD_LIBS+=lib/libatm.so.2
	OLD_LIBS+=lib/libbegemot.so.1
	OLD_LIBS+=lib/libbsdxml.so.1
	OLD_LIBS+=lib/libbsnmp.so.2
	OLD_LIBS+=lib/libc.so.5
	OLD_LIBS+=lib/libcam.so.2
	OLD_LIBS+=lib/libcrypt.so.2
	OLD_LIBS+=lib/libcrypto.so.3
	OLD_LIBS+=lib/libdevstat.so.4
	OLD_LIBS+=lib/libedit.so.4
	OLD_LIBS+=lib/libgeom.so.2
	OLD_LIBS+=lib/libgpib.so.0
	OLD_LIBS+=lib/libipsec.so.1
	OLD_LIBS+=lib/libipx.so.2
	OLD_LIBS+=lib/libkiconv.so.1
	OLD_LIBS+=lib/libkvm.so.2
	OLD_LIBS+=lib/libm.so.3
	OLD_LIBS+=lib/libmd.so.2
	OLD_LIBS+=lib/libncurses.so.5
	OLD_LIBS+=lib/libreadline.so.5
	OLD_LIBS+=lib/libsbuf.so.2
	OLD_LIBS+=lib/libufs.so.2
	OLD_LIBS+=lib/libutil.so.4
	OLD_LIBS+=lib/libz.so.2
	OLD_LIBS+=usr/lib/libarchive.so.1
	OLD_LIBS+=usr/lib/libasn1.so.7
	OLD_LIBS+=usr/lib/libbluetooth.so.1
	OLD_LIBS+=usr/lib/libbz2.so.1
	OLD_LIBS+=usr/lib/libc_r.so.5
	OLD_LIBS+=usr/lib/libcalendar.so.2
	OLD_LIBS+=usr/lib/libcom_err.so.2
	OLD_LIBS+=usr/lib/libdevinfo.so.2
	OLD_LIBS+=usr/lib/libdialog.so.4
	OLD_LIBS+=usr/lib/libfetch.so.3
	OLD_LIBS+=usr/lib/libform.so.2
	OLD_LIBS+=usr/lib/libftpio.so.5
	OLD_LIBS+=usr/lib/libg2c.so.1
	OLD_LIBS+=usr/lib/libgnuregex.so.2
	OLD_LIBS+=usr/lib/libgssapi.so.7
	OLD_LIBS+=usr/lib/libhdb.so.7
	OLD_LIBS+=usr/lib/libhistory.so.5
	OLD_LIBS+=usr/lib/libkadm5clnt.so.7
	OLD_LIBS+=usr/lib/libkadm5srv.so.7
	OLD_LIBS+=usr/lib/libkafs5.so.7
	OLD_LIBS+=usr/lib/libkrb5.so.7
	OLD_LIBS+=usr/lib/libmagic.so.1
	OLD_LIBS+=usr/lib/libmenu.so.2
	OLD_LIBS+=usr/lib/libmilter.so.2
	OLD_LIBS+=usr/lib/libmp.so.4
	OLD_LIBS+=usr/lib/libncp.so.1
	OLD_LIBS+=usr/lib/libnetgraph.so.1
	OLD_LIBS+=usr/lib/libngatm.so.1
	OLD_LIBS+=usr/lib/libobjc.so.1
	OLD_LIBS+=usr/lib/libopie.so.3
	OLD_LIBS+=usr/lib/libpam.so.2
	OLD_LIBS+=usr/lib/libpanel.so.2
	OLD_LIBS+=usr/lib/libpcap.so.3
	OLD_LIBS+=usr/lib/libpmc.so.2
	OLD_LIBS+=usr/lib/libpthread.so.1
	OLD_LIBS+=usr/lib/libradius.so.1
	OLD_LIBS+=usr/lib/libroken.so.7
	OLD_LIBS+=usr/lib/librpcsvc.so.2
	OLD_LIBS+=usr/lib/libsdp.so.1
	OLD_LIBS+=usr/lib/libsmb.so.1
	OLD_LIBS+=usr/lib/libssh.so.2
	OLD_LIBS+=usr/lib/libssl.so.3
	OLD_LIBS+=usr/lib/libstdc++.so.4
	OLD_LIBS+=usr/lib/libtacplus.so.1
	OLD_LIBS+=usr/lib/libthr.so.1
	OLD_LIBS+=usr/lib/libthread_db.so.1
	OLD_LIBS+=usr/lib/libugidfw.so.1
	OLD_LIBS+=usr/lib/libusbhid.so.1
	OLD_LIBS+=usr/lib/libvgl.so.3
	OLD_LIBS+=usr/lib/libwrap.so.3
	OLD_LIBS+=usr/lib/libypclnt.so.1
	OLD_LIBS+=usr/lib/pam_chroot.so.2
	OLD_LIBS+=usr/lib/pam_deny.so.2
	OLD_LIBS+=usr/lib/pam_echo.so.2
	OLD_LIBS+=usr/lib/pam_exec.so.2
	OLD_LIBS+=usr/lib/pam_ftpusers.so.2
	OLD_LIBS+=usr/lib/pam_group.so.2
	OLD_LIBS+=usr/lib/pam_guest.so.2
	OLD_LIBS+=usr/lib/pam_krb5.so.2
	OLD_LIBS+=usr/lib/pam_ksu.so.2
	OLD_LIBS+=usr/lib/pam_lastlog.so.2
	OLD_LIBS+=usr/lib/pam_login_access.so.2
	OLD_LIBS+=usr/lib/pam_nologin.so.2
	OLD_LIBS+=usr/lib/pam_opie.so.2
	OLD_LIBS+=usr/lib/pam_opieaccess.so.2
	OLD_LIBS+=usr/lib/pam_passwdqc.so.2
	OLD_LIBS+=usr/lib/pam_permit.so.2
	OLD_LIBS+=usr/lib/pam_radius.so.2
	OLD_LIBS+=usr/lib/pam_rhosts.so.2
	OLD_LIBS+=usr/lib/pam_rootok.so.2
	OLD_LIBS+=usr/lib/pam_securetty.so.2
	OLD_LIBS+=usr/lib/pam_self.so.2
	OLD_LIBS+=usr/lib/pam_ssh.so.2
	OLD_LIBS+=usr/lib/pam_tacplus.so.2
	OLD_LIBS+=usr/lib/pam_unix.so.2
	OLD_LIBS+=usr/lib/snmp_atm.so.3
	OLD_LIBS+=usr/lib/snmp_mibII.so.3
	OLD_LIBS+=usr/lib/snmp_netgraph.so.3
	OLD_LIBS+=usr/lib/snmp_pf.so.3
	# 200505XX: ?
	OLD_LIBS+=usr/lib/snmp_atm.so.2
	OLD_LIBS+=usr/lib/snmp_mibII.so.2
	OLD_LIBS+=usr/lib/snmp_netgraph.so.2
	OLD_LIBS+=usr/lib/snmp_pf.so.2
	# 2005XXXX: not ready for primetime yet
	OLD_LIBS+=usr/lib/libautofs.so.1
	# 200411XX: libxpg4 removal
	OLD_LIBS+=usr/lib/libxpg4.so.3
	# 200410XX: libm compatibility fix
	OLD_LIBS+=lib/libm.so.2
	# 20041001: version bump
	OLD_LIBS+=lib/libreadline.so.4
	OLD_LIBS+=usr/lib/libhistory.so.4
	OLD_LIBS+=usr/lib/libopie.so.2
	OLD_LIBS+=usr/lib/libpcap.so.2
	# 20040925: bind9 import
	OLD_LIBS+=usr/lib/libisc.so.1
	# 200408XX
	OLD_LIBS+=usr/lib/snmp_netgraph.so.1
	# 200404XX
	OLD_LIBS+=usr/lib/libsnmp.so.1
	OLD_LIBS+=usr/lib/snmp_mibII.so.1
	# 200309XX
	OLD_LIBS+=usr/lib/libasn1.so.6
	OLD_LIBS+=usr/lib/libhdb.so.6
	OLD_LIBS+=usr/lib/libkadm5clnt.so.6
	OLD_LIBS+=usr/lib/libkadm5srv.so.6
	OLD_LIBS+=usr/lib/libkrb5.so.6
	OLD_LIBS+=usr/lib/libroken.so.6
	# 200304XX
	OLD_LIBS+=usr/lib/libc.so.4
	OLD_LIBS+=usr/lib/libc_r.so.4
	OLD_LIBS+=usr/lib/libdevstat.so.2
	OLD_LIBS+=usr/lib/libedit.so.3
	OLD_LIBS+=usr/lib/libgmp.so.3
	OLD_LIBS+=usr/lib/libmp.so.3
	OLD_LIBS+=usr/lib/libpam.so.1
	OLD_LIBS+=usr/lib/libposix1e.so.2
	OLD_LIBS+=usr/lib/libskey.so.2
	OLD_LIBS+=usr/lib/libusbhid.so.0
	OLD_LIBS+=usr/lib/libvgl.so.2
	# 20030218: OpenSSL 0.9.7 import
	OLD_FILES+=usr/include/des.h
	OLD_FILES+=usr/lib/libdes.a
	OLD_FILES+=usr/lib/libdes.so
	OLD_LIBS+=usr/lib/libdes.so.3
	OLD_FILES+=usr/lib/libdes_p.a
	# 200302XX
	OLD_LIBS+=usr/lib/libacl.so.3
	OLD_LIBS+=usr/lib/libasn1.so.5
	OLD_LIBS+=usr/lib/libcrypto.so.2
	OLD_LIBS+=usr/lib/libgssapi.so.5
	OLD_LIBS+=usr/lib/libhdb.so.5
	OLD_LIBS+=usr/lib/libkadm.so.3
	OLD_LIBS+=usr/lib/libkadm5clnt.so.5
	OLD_LIBS+=usr/lib/libkadm5srv.so.5
	OLD_LIBS+=usr/lib/libkafs.so.3
	OLD_LIBS+=usr/lib/libkafs5.so.5
	OLD_LIBS+=usr/lib/libkdb.so.3
	OLD_LIBS+=usr/lib/libkrb.so.3
	OLD_LIBS+=usr/lib/libroken.so.
	OLD_LIBS+=usr/lib/libssl.so.2
	OLD_LIBS+=usr/lib/pam_kerberosIV.so
	# 200208XX
	OLD_LIBS+=usr/lib/libgssapi.so.4
	# 200203XX
	OLD_LIBS+=usr/lib/libss.so.3
	OLD_LIBS+=usr/lib/libusb.so.0
	# 200112XX
	OLD_LIBS+=usr/lib/libfetch.so.2
	# 200110XX
	OLD_LIBS+=usr/lib/libgssapi.so.3
	# 200104XX
	OLD_LIBS+=usr/lib/libdescrypt.so.2
	OLD_LIBS+=usr/lib/libscrypt.so.2
	# 200102XX
	OLD_LIBS+=usr/lib/libcrypto.so.1
	OLD_LIBS+=usr/lib/libssl.so.1
	# 200009XX
	OLD_LIBS+=usr/lib/libRSAglue.so.1
	OLD_LIBS+=usr/lib/librsaINTL.so.1
	OLD_LIBS+=usr/lib/librsaUSA.so.1
	# 200006XX
	OLD_LIBS+=usr/lib/libalias.so.3
	OLD_LIBS+=usr/lib/libfetch.so.1
	OLD_LIBS+=usr/lib/libipsec.so.0
	# 200005XX
	OLD_LIBS+=usr/lib/libxpg4.so.2
	# 200002XX
	OLD_LIBS+=usr/lib/libc.so.3
	OLD_LIBS+=usr/lib/libcurses.so.2
	OLD_LIBS+=usr/lib/libdialog.so.3
	OLD_LIBS+=usr/lib/libedit.so.2
	OLD_LIBS+=usr/lib/libf2c.so.2
	OLD_LIBS+=usr/lib/libftpio.so.4
	OLD_LIBS+=usr/lib/libg++.so.4
	OLD_LIBS+=usr/lib/libhistory.so.3
	OLD_LIBS+=usr/lib/libmytinfo.so.2
	OLD_LIBS+=usr/lib/libncurses.so.3
	OLD_LIBS+=usr/lib/libreadline.so.3
	OLD_LIBS+=usr/lib/libss.so.2
	OLD_LIBS+=usr/lib/libtermcap.so.2
	OLD_LIBS+=usr/lib/libutil.so.2
	OLD_LIBS+=usr/lib/libvgl.so.1
	OLD_LIBS+=usr/lib/libwrap.so.2
	# ???
	OLD_LIBS+=usr/lib/libarchive.so.2
	OLD_LIBS+=usr/lib/libbsnmp.so.1
	OLD_LIBS+=usr/lib/libc_r.so.6
	OLD_LIBS+=usr/lib32/libarchive.so.2
	OLD_LIBS+=usr/lib32/libc_r.so.6
	OLD_LIBS+=usr/lib/libcipher.so.2
	OLD_LIBS+=usr/lib/libgssapi.so.6
	OLD_LIBS+=usr/lib/libkse.so.1
	OLD_LIBS+=usr/lib/liblwres.so.3
	OLD_LIBS+=usr/lib/pam_ftp.so.2

	# 20040925: bind9 import
	OLD_DIRS+=usr/share/doc/bind/html
	OLD_DIRS+=usr/share/doc/bind/misc
	OLD_DIRS+=usr/share/doc/bind/
	# ???
	OLD_DIRS+=usr/include/g++/std
	OLD_DIRS+=usr/include/msdosfs
	OLD_DIRS+=usr/include/ntfs
	OLD_DIRS+=usr/include/nwfs
	OLD_DIRS+=usr/include/ufs/mfs
	# 20011001: UUCP migration to ports
	OLD_DIRS+=usr/libexec/uucp


	.include "tools/build/mk/OptionalObsoleteFiles.inc"
	diff --git a/cddl/sbin/zfs/Makefile b/cddl/sbin/zfs/Makefile
	index 5ea237eecaa4..6a6ef62e4fce 100644
	--- a/cddl/sbin/zfs/Makefile
	+++ b/cddl/sbin/zfs/Makefile
	@@ -1,78 +1,79 @@
	# $FreeBSD$

	ZFSTOP= ${SRCTOP}/sys/contrib/openzfs

	.PATH: ${ZFSTOP}/cmd/zfs
	+.PATH: ${ZFSTOP}/man/man7
	.PATH: ${ZFSTOP}/man/man8
	.PATH: ${ZFSTOP}/module/os/freebsd/spl

	PACKAGE= runtime
	PROG= zfs
	MAN= \
	zfs.8 \
	zfs-allow.8 \
	zfs-bookmark.8 \
	zfs-clone.8 \
	zfs-create.8 \
	zfs-destroy.8 \
	zfs-diff.8 \
	zfs-hold.8 \
	zfs-jail.8 \
	zfs-list.8 \
	zfs-load-key.8 \
	zfs-mount.8 \
	zfs-program.8 \
	zfs-project.8 \
	zfs-promote.8 \
	zfs-receive.8 \
	zfs-rename.8 \
	zfs-rollback.8 \
	zfs-send.8 \
	zfs-set.8 \
	zfs-share.8 \
	zfs-snapshot.8 \
	zfs-upgrade.8 \
	zfs-userspace.8 \
	zfs-wait.8 \
	- zfsconcepts.8 \
	- zfsprops.8
	+ zfsconcepts.7 \
	+ zfsprops.7
	MLINKS= \
	zfs-allow.8 zfs-unallow.8 \
	zfs-hold.8 zfs-release.8 \
	zfs-jail.8 zfs-unjail.8 \
	zfs-load-key.8 zfs-change-key.8 \
	zfs-load-key.8 zfs-unload-key.8 \
	zfs-mount.8 zfs-unmount.8 \
	zfs-receive.8 zfs-recv.8 \
	zfs-send.8 zfs-redact.8 \
	zfs-set.8 zfs-get.8 \
	zfs-set.8 zfs-inherit.8 \
	zfs-userspace.8 zfs-groupspace.8 \
	zfs-userspace.8 zfs-projectspace.8
	SRCS= \
	zfs_iter.c \
	zfs_iter.h \
	zfs_main.c \
	zfs_util.h \
	zfs_project.c \
	zfs_projectutil.h

	WARNS?= 2

	CFLAGS+= \
	-DIN_BASE \
	-I${ZFSTOP}/include \
	-I${ZFSTOP}/include/os/freebsd \
	-I${ZFSTOP}/lib/libspl/include \
	-I${ZFSTOP}/lib/libspl/include/os/freebsd \
	-I${SRCTOP}/sys \
	-I${SRCTOP}/cddl/compat/opensolaris/include \
	-I${ZFSTOP}/module/icp/include \
	-include ${ZFSTOP}/include/os/freebsd/spl/sys/ccompile.h \
	-DHAVE_ISSETUGID \
	-include ${SRCTOP}/sys/modules/zfs/zfs_config.h \
	-I${SRCTOP}/sys/modules/zfs

	LIBADD= jail avl nvpair geom uutil zfs_core spl tpool zutil zfs m crypto
	LDADD+= -pthread
	.include <bsd.prog.mk>
	diff --git a/cddl/sbin/zpool/Makefile b/cddl/sbin/zpool/Makefile
	index 43cc8f2997b7..4c2a8b94de19 100644
	--- a/cddl/sbin/zpool/Makefile
	+++ b/cddl/sbin/zpool/Makefile
	@@ -1,79 +1,80 @@
	# $FreeBSD$

	ZFSTOP= ${SRCTOP}/sys/contrib/openzfs

	+.PATH: ${ZFSTOP}/man/man4
	.PATH: ${ZFSTOP}/man/man5
	+.PATH: ${ZFSTOP}/man/man7
	.PATH: ${ZFSTOP}/man/man8
	.PATH: ${ZFSTOP}/cmd/zpool
	.PATH: ${ZFSTOP}/cmd/zpool/os/freebsd


	PACKAGE= runtime
	PROG= zpool
	MAN= \
	- spl-module-parameters.5 \
	- zfs-events.5 \
	- zfs-module-parameters.5 \
	+ spl.4 \
	+ zfs.4 \
	zpool.8 \
	zpool-add.8 \
	zpool-attach.8 \
	zpool-checkpoint.8 \
	zpool-clear.8 \
	zpool-create.8 \
	zpool-destroy.8 \
	zpool-detach.8 \
	zpool-events.8 \
	zpool-export.8 \
	- zpool-features.5 \
	+ zpool-features.7 \
	zpool-get.8 \
	zpool-history.8 \
	zpool-import.8 \
	zpool-initialize.8 \
	zpool-iostat.8 \
	zpool-labelclear.8 \
	zpool-list.8 \
	zpool-offline.8 \
	zpool-reguid.8 \
	zpool-remove.8 \
	zpool-reopen.8 \
	zpool-replace.8 \
	zpool-resilver.8 \
	zpool-scrub.8 \
	zpool-split.8 \
	zpool-status.8 \
	zpool-sync.8 \
	zpool-trim.8 \
	zpool-upgrade.8 \
	zpool-wait.8 \
	- zpoolconcepts.8 \
	- zpoolprops.8
	+ zpoolconcepts.7 \
	+ zpoolprops.7
	MLINKS= \
	zpool-offline.8 zpool-online.8 \
	zpool-get.8 zpool-set.8
	SRCS= \
	zpool_iter.c \
	zpool_main.c \
	zpool_util.c \
	zpool_util.h \
	zpool_vdev.c \
	zpool_vdev_os.c

	WARNS?= 2

	CFLAGS+= \
	-DIN_BASE \
	-I${ZFSTOP}/include \
	-I${ZFSTOP}/lib/libspl/include \
	-I${ZFSTOP}/lib/libspl/include/os/freebsd \
	-I${SRCTOP}/sys \
	-I${SRCTOP}/cddl/compat/opensolaris/include \
	-I${ZFSTOP}/cmd/zpool \
	-include ${ZFSTOP}/include/os/freebsd/spl/sys/ccompile.h \
	-DHAVE_ISSETUGID \
	-include ${SRCTOP}/sys/modules/zfs/zfs_config.h \
	-DSYSCONFDIR=\"/etc\" \
	-DPKGDATADIR=\"/usr/share/zfs\"

	LIBADD= geom nvpair uutil zfs zutil avl spl tpool zfs_core m
	LDADD+= -pthread
	.include <bsd.prog.mk>
	diff --git a/sys/contrib/openzfs/.github/workflows/zfs-tests-functional.yml b/sys/contrib/openzfs/.github/workflows/zfs-tests-functional.yml
	index d2b5764dbf80..eacc95ae1617 100644
	--- a/sys/contrib/openzfs/.github/workflows/zfs-tests-functional.yml
	+++ b/sys/contrib/openzfs/.github/workflows/zfs-tests-functional.yml
	@@ -1,70 +1,71 @@
	name: zfs-tests-functional

	on:
	push:
	pull_request:

	jobs:
	tests-functional-ubuntu:
	strategy:
	fail-fast: false
	matrix:
	os: [18.04, 20.04]
	runs-on: ubuntu-${{ matrix.os }}
	steps:
	- uses: actions/checkout@v2
	with:
	ref: ${{ github.event.pull_request.head.sha }}
	- name: Install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install --yes -qq build-essential autoconf libtool gdb lcov \
	git alien fakeroot wget curl bc fio acl \
	sysstat mdadm lsscsi parted gdebi attr dbench watchdog ksh \
	nfs-kernel-server samba rng-tools xz-utils \
	zlib1g-dev uuid-dev libblkid-dev libselinux-dev \
	xfslibs-dev libattr1-dev libacl1-dev libudev-dev libdevmapper-dev \
	libssl-dev libffi-dev libaio-dev libelf-dev libmount-dev \
	libpam0g-dev pamtester python-dev python-setuptools python-cffi \
	- python3 python3-dev python3-setuptools python3-cffi libcurl4-openssl-dev
	+ python-packaging python3 python3-dev python3-setuptools python3-cffi \
	+ libcurl4-openssl-dev python3-packaging
	- name: Autogen.sh
	run: \|
	sh autogen.sh
	- name: Configure
	run: \|
	./configure --enable-debug --enable-debuginfo
	- name: Make
	run: \|
	make --no-print-directory -s pkg-utils pkg-kmod
	- name: Install
	run: \|
	sudo dpkg -i *.deb
	# Update order of directories to search for modules, otherwise
	# Ubuntu will load kernel-shipped ones.
	sudo sed -i.bak 's/updates/extra updates/' /etc/depmod.d/ubuntu.conf
	sudo depmod
	sudo modprobe zfs
	# Workaround to provide additional free space for testing.
	# https://github.com/actions/virtual-environments/issues/2840
	sudo rm -rf /usr/share/dotnet
	sudo rm -rf /opt/ghc
	sudo rm -rf "/usr/local/share/boost"
	sudo rm -rf "$AGENT_TOOLSDIRECTORY"
	- name: Tests
	run: \|
	/usr/share/zfs/zfs-tests.sh -v -s 3G
	- name: Prepare artifacts
	if: failure()
	run: \|
	RESULTS_PATH=$(readlink -f /var/tmp/test_results/current)
	sudo dmesg > $RESULTS_PATH/dmesg
	sudo cp /var/log/syslog $RESULTS_PATH/
	sudo chmod +r $RESULTS_PATH/*
	# Replace ':' in dir names, actions/upload-artifact doesn't support it
	for f in $(find $RESULTS_PATH -name ':'); do mv "$f" "${f//:/__}"; done
	- uses: actions/upload-artifact@v2
	if: failure()
	with:
	name: Test logs Ubuntu-${{ matrix.os }}
	path: /var/tmp/test_results/20*/
	if-no-files-found: ignore
	diff --git a/sys/contrib/openzfs/.github/workflows/zfs-tests-sanity.yml b/sys/contrib/openzfs/.github/workflows/zfs-tests-sanity.yml
	index 9e2ed1b2f7cf..40a7f8ba511c 100644
	--- a/sys/contrib/openzfs/.github/workflows/zfs-tests-sanity.yml
	+++ b/sys/contrib/openzfs/.github/workflows/zfs-tests-sanity.yml
	@@ -1,66 +1,67 @@
	name: zfs-tests-sanity

	on:
	push:
	pull_request:

	jobs:
	tests:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	with:
	ref: ${{ github.event.pull_request.head.sha }}
	- name: Install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install --yes -qq build-essential autoconf libtool gdb lcov \
	git alien fakeroot wget curl bc fio acl \
	sysstat mdadm lsscsi parted gdebi attr dbench watchdog ksh \
	nfs-kernel-server samba rng-tools xz-utils \
	zlib1g-dev uuid-dev libblkid-dev libselinux-dev \
	xfslibs-dev libattr1-dev libacl1-dev libudev-dev libdevmapper-dev \
	libssl-dev libffi-dev libaio-dev libelf-dev libmount-dev \
	libpam0g-dev pamtester python-dev python-setuptools python-cffi \
	- python3 python3-dev python3-setuptools python3-cffi libcurl4-openssl-dev
	+ python-packaging python3 python3-dev python3-setuptools python3-cffi \
	+ python3-packaging libcurl4-openssl-dev
	- name: Autogen.sh
	run: \|
	sh autogen.sh
	- name: Configure
	run: \|
	./configure --enable-debug --enable-debuginfo
	- name: Make
	run: \|
	make --no-print-directory -s pkg-utils pkg-kmod
	- name: Install
	run: \|
	sudo dpkg -i *.deb
	# Update order of directories to search for modules, otherwise
	# Ubuntu will load kernel-shipped ones.
	sudo sed -i.bak 's/updates/extra updates/' /etc/depmod.d/ubuntu.conf
	sudo depmod
	sudo modprobe zfs
	# Workaround to provide additional free space for testing.
	# https://github.com/actions/virtual-environments/issues/2840
	sudo rm -rf /usr/share/dotnet
	sudo rm -rf /opt/ghc
	sudo rm -rf "/usr/local/share/boost"
	sudo rm -rf "$AGENT_TOOLSDIRECTORY"
	- name: Tests
	run: \|
	/usr/share/zfs/zfs-tests.sh -v -s 3G -r sanity
	- name: Prepare artifacts
	if: failure()
	run: \|
	RESULTS_PATH=$(readlink -f /var/tmp/test_results/current)
	sudo dmesg > $RESULTS_PATH/dmesg
	sudo cp /var/log/syslog $RESULTS_PATH/
	sudo chmod +r $RESULTS_PATH/*
	# Replace ':' in dir names, actions/upload-artifact doesn't support it
	for f in $(find $RESULTS_PATH -name ':'); do mv "$f" "${f//:/__}"; done
	- uses: actions/upload-artifact@v2
	if: failure()
	with:
	name: Test logs
	path: /var/tmp/test_results/20*/
	if-no-files-found: ignore
	diff --git a/sys/contrib/openzfs/.github/workflows/zloop.yml b/sys/contrib/openzfs/.github/workflows/zloop.yml
	index 30785b14507a..b3679e7f7f20 100644
	--- a/sys/contrib/openzfs/.github/workflows/zloop.yml
	+++ b/sys/contrib/openzfs/.github/workflows/zloop.yml
	@@ -1,67 +1,67 @@
	name: zloop

	on:
	push:
	pull_request:

	jobs:
	tests:
	runs-on: ubuntu-latest
	env:
	TEST_DIR: /var/tmp/zloop
	steps:
	- uses: actions/checkout@v2
	with:
	ref: ${{ github.event.pull_request.head.sha }}
	- name: Install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install --yes -qq build-essential autoconf libtool gdb \
	git alien fakeroot \
	zlib1g-dev uuid-dev libblkid-dev libselinux-dev \
	xfslibs-dev libattr1-dev libacl1-dev libudev-dev libdevmapper-dev \
	libssl-dev libffi-dev libaio-dev libelf-dev libmount-dev \
	libpam0g-dev \
	- python-dev python-setuptools python-cffi \
	- python3 python3-dev python3-setuptools python3-cffi
	+ python-dev python-setuptools python-cffi python-packaging \
	+ python3 python3-dev python3-setuptools python3-cffi python3-packaging
	- name: Autogen.sh
	run: \|
	sh autogen.sh
	- name: Configure
	run: \|
	./configure --enable-debug --enable-debuginfo
	- name: Make
	run: \|
	make --no-print-directory -s pkg-utils pkg-kmod
	- name: Install
	run: \|
	sudo dpkg -i *.deb
	# Update order of directories to search for modules, otherwise
	# Ubuntu will load kernel-shipped ones.
	sudo sed -i.bak 's/updates/extra updates/' /etc/depmod.d/ubuntu.conf
	sudo depmod
	sudo modprobe zfs
	- name: Tests
	run: \|
	sudo mkdir -p $TEST_DIR
	# run for 20 minutes to have a total runner time of 30 minutes
	sudo /usr/share/zfs/zloop.sh -t 1200 -l -m1
	- name: Prepare artifacts
	if: failure()
	run: \|
	sudo chmod +r -R $TEST_DIR/
	- uses: actions/upload-artifact@v2
	if: failure()
	with:
	name: Logs
	path: \|
	/var/tmp/zloop/*/
	!/var/tmp/zloop/*/vdev/
	if-no-files-found: ignore
	- uses: actions/upload-artifact@v2
	if: failure()
	with:
	name: Pool files
	path: \|
	/var/tmp/zloop/*/vdev/
	if-no-files-found: ignore
	diff --git a/sys/contrib/openzfs/cmd/zed/agents/zfs_retire.c b/sys/contrib/openzfs/cmd/zed/agents/zfs_retire.c
	index 1c4cc885b5e5..1563f5d2792c 100644
	--- a/sys/contrib/openzfs/cmd/zed/agents/zfs_retire.c
	+++ b/sys/contrib/openzfs/cmd/zed/agents/zfs_retire.c
	@@ -1,564 +1,565 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
	*
	* Copyright (c) 2016, Intel Corporation.
	* Copyright (c) 2018, loli10K <ezomori.nozomu@gmail.com>
	*/

	/*
	* The ZFS retire agent is responsible for managing hot spares across all pools.
	* When we see a device fault or a device removal, we try to open the associated
	* pool and look for any hot spares. We iterate over any available hot spares
	* and attempt a 'zpool replace' for each one.
	*
	* For vdevs diagnosed as faulty, the agent is also responsible for proactively
	* marking the vdev FAULTY (for I/O errors) or DEGRADED (for checksum errors).
	*/

	#include <sys/fs/zfs.h>
	#include <sys/fm/protocol.h>
	#include <sys/fm/fs/zfs.h>
	+#include <libzutil.h>
	#include <libzfs.h>
	#include <string.h>

	#include "zfs_agents.h"
	#include "fmd_api.h"


	typedef struct zfs_retire_repaired {
	struct zfs_retire_repaired *zrr_next;
	uint64_t zrr_pool;
	uint64_t zrr_vdev;
	} zfs_retire_repaired_t;

	typedef struct zfs_retire_data {
	libzfs_handle_t *zrd_hdl;
	zfs_retire_repaired_t *zrd_repaired;
	} zfs_retire_data_t;

	static void
	zfs_retire_clear_data(fmd_hdl_t hdl, zfs_retire_data_t zdp)
	{
	zfs_retire_repaired_t *zrp;

	while ((zrp = zdp->zrd_repaired) != NULL) {
	zdp->zrd_repaired = zrp->zrr_next;
	fmd_hdl_free(hdl, zrp, sizeof (zfs_retire_repaired_t));
	}
	}

	/*
	* Find a pool with a matching GUID.
	*/
	typedef struct find_cbdata {
	uint64_t cb_guid;
	zpool_handle_t *cb_zhp;
	nvlist_t *cb_vdev;
	} find_cbdata_t;

	static int
	find_pool(zpool_handle_t zhp, void data)
	{
	find_cbdata_t *cbp = data;

	if (cbp->cb_guid ==
	zpool_get_prop_int(zhp, ZPOOL_PROP_GUID, NULL)) {
	cbp->cb_zhp = zhp;
	return (1);
	}

	zpool_close(zhp);
	return (0);
	}

	/*
	* Find a vdev within a tree with a matching GUID.
	*/
	static nvlist_t *
	find_vdev(libzfs_handle_t zhdl, nvlist_t nv, uint64_t search_guid)
	{
	uint64_t guid;
	nvlist_t **child;
	uint_t c, children;
	nvlist_t *ret;

	if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) == 0 &&
	guid == search_guid) {
	fmd_hdl_debug(fmd_module_hdl("zfs-retire"),
	"matched vdev %llu", guid);
	return (nv);
	}

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
	&child, &children) != 0)
	return (NULL);

	for (c = 0; c < children; c++) {
	if ((ret = find_vdev(zhdl, child[c], search_guid)) != NULL)
	return (ret);
	}

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
	&child, &children) != 0)
	return (NULL);

	for (c = 0; c < children; c++) {
	if ((ret = find_vdev(zhdl, child[c], search_guid)) != NULL)
	return (ret);
	}

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
	&child, &children) != 0)
	return (NULL);

	for (c = 0; c < children; c++) {
	if ((ret = find_vdev(zhdl, child[c], search_guid)) != NULL)
	return (ret);
	}

	return (NULL);
	}

	/*
	* Given a (pool, vdev) GUID pair, find the matching pool and vdev.
	*/
	static zpool_handle_t *
	find_by_guid(libzfs_handle_t *zhdl, uint64_t pool_guid, uint64_t vdev_guid,
	nvlist_t **vdevp)
	{
	find_cbdata_t cb;
	zpool_handle_t *zhp;
	nvlist_t config, nvroot;

	/*
	* Find the corresponding pool and make sure the vdev still exists.
	*/
	cb.cb_guid = pool_guid;
	if (zpool_iter(zhdl, find_pool, &cb) != 1)
	return (NULL);

	zhp = cb.cb_zhp;
	config = zpool_get_config(zhp, NULL);
	if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
	&nvroot) != 0) {
	zpool_close(zhp);
	return (NULL);
	}

	if (vdev_guid != 0) {
	if ((*vdevp = find_vdev(zhdl, nvroot, vdev_guid)) == NULL) {
	zpool_close(zhp);
	return (NULL);
	}
	}

	return (zhp);
	}

	/*
	* Given a vdev, attempt to replace it with every known spare until one
	* succeeds or we run out of devices to try.
	* Return whether we were successful or not in replacing the device.
	*/
	static boolean_t
	replace_with_spare(fmd_hdl_t hdl, zpool_handle_t zhp, nvlist_t *vdev)
	{
	nvlist_t config, nvroot, *replacement;
	nvlist_t **spares;
	uint_t s, nspares;
	char *dev_name;
	zprop_source_t source;
	int ashift;

	config = zpool_get_config(zhp, NULL);
	if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
	&nvroot) != 0)
	return (B_FALSE);

	/*
	* Find out if there are any hot spares available in the pool.
	*/
	if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
	&spares, &nspares) != 0)
	return (B_FALSE);

	/*
	* lookup "ashift" pool property, we may need it for the replacement
	*/
	ashift = zpool_get_prop_int(zhp, ZPOOL_PROP_ASHIFT, &source);

	replacement = fmd_nvl_alloc(hdl, FMD_SLEEP);

	(void) nvlist_add_string(replacement, ZPOOL_CONFIG_TYPE,
	VDEV_TYPE_ROOT);

	dev_name = zpool_vdev_name(NULL, zhp, vdev, B_FALSE);

	/*
	* Try to replace each spare, ending when we successfully
	* replace it.
	*/
	for (s = 0; s < nspares; s++) {
	boolean_t rebuild = B_FALSE;
	char spare_name, type;

	if (nvlist_lookup_string(spares[s], ZPOOL_CONFIG_PATH,
	&spare_name) != 0)
	continue;

	/* prefer sequential resilvering for distributed spares */
	if ((nvlist_lookup_string(spares[s], ZPOOL_CONFIG_TYPE,
	&type) == 0) && strcmp(type, VDEV_TYPE_DRAID_SPARE) == 0)
	rebuild = B_TRUE;

	/* if set, add the "ashift" pool property to the spare nvlist */
	if (source != ZPROP_SRC_DEFAULT)
	(void) nvlist_add_uint64(spares[s],
	ZPOOL_CONFIG_ASHIFT, ashift);

	(void) nvlist_add_nvlist_array(replacement,
	ZPOOL_CONFIG_CHILDREN, &spares[s], 1);

	fmd_hdl_debug(hdl, "zpool_vdev_replace '%s' with spare '%s'",
	- dev_name, basename(spare_name));
	+ dev_name, zfs_basename(spare_name));

	if (zpool_vdev_attach(zhp, dev_name, spare_name,
	replacement, B_TRUE, rebuild) == 0) {
	free(dev_name);
	nvlist_free(replacement);
	return (B_TRUE);
	}
	}

	free(dev_name);
	nvlist_free(replacement);

	return (B_FALSE);
	}

	/*
	* Repair this vdev if we had diagnosed a 'fault.fs.zfs.device' and
	* ASRU is now usable. ZFS has found the device to be present and
	* functioning.
	*/
	/ARGSUSED/
	static void
	zfs_vdev_repair(fmd_hdl_t hdl, nvlist_t nvl)
	{
	zfs_retire_data_t *zdp = fmd_hdl_getspecific(hdl);
	zfs_retire_repaired_t *zrp;
	uint64_t pool_guid, vdev_guid;
	if (nvlist_lookup_uint64(nvl, FM_EREPORT_PAYLOAD_ZFS_POOL_GUID,
	&pool_guid) != 0 \|\| nvlist_lookup_uint64(nvl,
	FM_EREPORT_PAYLOAD_ZFS_VDEV_GUID, &vdev_guid) != 0)
	return;

	/*
	* Before checking the state of the ASRU, go through and see if we've
	* already made an attempt to repair this ASRU. This list is cleared
	* whenever we receive any kind of list event, and is designed to
	* prevent us from generating a feedback loop when we attempt repairs
	* against a faulted pool. The problem is that checking the unusable
	* state of the ASRU can involve opening the pool, which can post
	* statechange events but otherwise leave the pool in the faulted
	* state. This list allows us to detect when a statechange event is
	* due to our own request.
	*/
	for (zrp = zdp->zrd_repaired; zrp != NULL; zrp = zrp->zrr_next) {
	if (zrp->zrr_pool == pool_guid &&
	zrp->zrr_vdev == vdev_guid)
	return;
	}

	zrp = fmd_hdl_alloc(hdl, sizeof (zfs_retire_repaired_t), FMD_SLEEP);
	zrp->zrr_next = zdp->zrd_repaired;
	zrp->zrr_pool = pool_guid;
	zrp->zrr_vdev = vdev_guid;
	zdp->zrd_repaired = zrp;

	fmd_hdl_debug(hdl, "marking repaired vdev %llu on pool %llu",
	vdev_guid, pool_guid);
	}

	/ARGSUSED/
	static void
	zfs_retire_recv(fmd_hdl_t hdl, fmd_event_t ep, nvlist_t *nvl,
	const char *class)
	{
	uint64_t pool_guid, vdev_guid;
	zpool_handle_t *zhp;
	nvlist_t resource, fault;
	nvlist_t **faults;
	uint_t f, nfaults;
	zfs_retire_data_t *zdp = fmd_hdl_getspecific(hdl);
	libzfs_handle_t *zhdl = zdp->zrd_hdl;
	boolean_t fault_device, degrade_device;
	boolean_t is_repair;
	char *scheme;
	nvlist_t *vdev = NULL;
	char *uuid;
	int repair_done = 0;
	boolean_t retire;
	boolean_t is_disk;
	vdev_aux_t aux;
	uint64_t state = 0;

	fmd_hdl_debug(hdl, "zfs_retire_recv: '%s'", class);

	nvlist_lookup_uint64(nvl, FM_EREPORT_PAYLOAD_ZFS_VDEV_STATE, &state);

	/*
	* If this is a resource notifying us of device removal then simply
	* check for an available spare and continue unless the device is a
	* l2arc vdev, in which case we just offline it.
	*/
	if (strcmp(class, "resource.fs.zfs.removed") == 0 \|\|
	(strcmp(class, "resource.fs.zfs.statechange") == 0 &&
	(state == VDEV_STATE_REMOVED \|\| state == VDEV_STATE_FAULTED))) {
	char *devtype;
	char *devname;

	if (nvlist_lookup_uint64(nvl, FM_EREPORT_PAYLOAD_ZFS_POOL_GUID,
	&pool_guid) != 0 \|\|
	nvlist_lookup_uint64(nvl, FM_EREPORT_PAYLOAD_ZFS_VDEV_GUID,
	&vdev_guid) != 0)
	return;

	if ((zhp = find_by_guid(zhdl, pool_guid, vdev_guid,
	&vdev)) == NULL)
	return;

	devname = zpool_vdev_name(NULL, zhp, vdev, B_FALSE);

	/* Can't replace l2arc with a spare: offline the device */
	if (nvlist_lookup_string(nvl, FM_EREPORT_PAYLOAD_ZFS_VDEV_TYPE,
	&devtype) == 0 && strcmp(devtype, VDEV_TYPE_L2CACHE) == 0) {
	fmd_hdl_debug(hdl, "zpool_vdev_offline '%s'", devname);
	zpool_vdev_offline(zhp, devname, B_TRUE);
	} else if (!fmd_prop_get_int32(hdl, "spare_on_remove") \|\|
	replace_with_spare(hdl, zhp, vdev) == B_FALSE) {
	/* Could not handle with spare */
	fmd_hdl_debug(hdl, "no spare for '%s'", devname);
	}

	free(devname);
	zpool_close(zhp);
	return;
	}

	if (strcmp(class, FM_LIST_RESOLVED_CLASS) == 0)
	return;

	/*
	* Note: on Linux statechange events are more than just
	* healthy ones so we need to confirm the actual state value.
	*/
	if (strcmp(class, "resource.fs.zfs.statechange") == 0 &&
	state == VDEV_STATE_HEALTHY) {
	zfs_vdev_repair(hdl, nvl);
	return;
	}
	if (strcmp(class, "sysevent.fs.zfs.vdev_remove") == 0) {
	zfs_vdev_repair(hdl, nvl);
	return;
	}

	zfs_retire_clear_data(hdl, zdp);

	if (strcmp(class, FM_LIST_REPAIRED_CLASS) == 0)
	is_repair = B_TRUE;
	else
	is_repair = B_FALSE;

	/*
	* We subscribe to zfs faults as well as all repair events.
	*/
	if (nvlist_lookup_nvlist_array(nvl, FM_SUSPECT_FAULT_LIST,
	&faults, &nfaults) != 0)
	return;

	for (f = 0; f < nfaults; f++) {
	fault = faults[f];

	fault_device = B_FALSE;
	degrade_device = B_FALSE;
	is_disk = B_FALSE;

	if (nvlist_lookup_boolean_value(fault, FM_SUSPECT_RETIRE,
	&retire) == 0 && retire == 0)
	continue;

	/*
	* While we subscribe to fault.fs.zfs.*, we only take action
	* for faults targeting a specific vdev (open failure or SERD
	* failure). We also subscribe to fault.io.* events, so that
	* faulty disks will be faulted in the ZFS configuration.
	*/
	if (fmd_nvl_class_match(hdl, fault, "fault.fs.zfs.vdev.io")) {
	fault_device = B_TRUE;
	} else if (fmd_nvl_class_match(hdl, fault,
	"fault.fs.zfs.vdev.checksum")) {
	degrade_device = B_TRUE;
	} else if (fmd_nvl_class_match(hdl, fault,
	"fault.fs.zfs.device")) {
	fault_device = B_FALSE;
	} else if (fmd_nvl_class_match(hdl, fault, "fault.io.*")) {
	is_disk = B_TRUE;
	fault_device = B_TRUE;
	} else {
	continue;
	}

	if (is_disk) {
	continue;
	} else {
	/*
	* This is a ZFS fault. Lookup the resource, and
	* attempt to find the matching vdev.
	*/
	if (nvlist_lookup_nvlist(fault, FM_FAULT_RESOURCE,
	&resource) != 0 \|\|
	nvlist_lookup_string(resource, FM_FMRI_SCHEME,
	&scheme) != 0)
	continue;

	if (strcmp(scheme, FM_FMRI_SCHEME_ZFS) != 0)
	continue;

	if (nvlist_lookup_uint64(resource, FM_FMRI_ZFS_POOL,
	&pool_guid) != 0)
	continue;

	if (nvlist_lookup_uint64(resource, FM_FMRI_ZFS_VDEV,
	&vdev_guid) != 0) {
	if (is_repair)
	vdev_guid = 0;
	else
	continue;
	}

	if ((zhp = find_by_guid(zhdl, pool_guid, vdev_guid,
	&vdev)) == NULL)
	continue;

	aux = VDEV_AUX_ERR_EXCEEDED;
	}

	if (vdev_guid == 0) {
	/*
	* For pool-level repair events, clear the entire pool.
	*/
	fmd_hdl_debug(hdl, "zpool_clear of pool '%s'",
	zpool_get_name(zhp));
	(void) zpool_clear(zhp, NULL, NULL);
	zpool_close(zhp);
	continue;
	}

	/*
	* If this is a repair event, then mark the vdev as repaired and
	* continue.
	*/
	if (is_repair) {
	repair_done = 1;
	fmd_hdl_debug(hdl, "zpool_clear of pool '%s' vdev %llu",
	zpool_get_name(zhp), vdev_guid);
	(void) zpool_vdev_clear(zhp, vdev_guid);
	zpool_close(zhp);
	continue;
	}

	/*
	* Actively fault the device if needed.
	*/
	if (fault_device)
	(void) zpool_vdev_fault(zhp, vdev_guid, aux);
	if (degrade_device)
	(void) zpool_vdev_degrade(zhp, vdev_guid, aux);

	if (fault_device \|\| degrade_device)
	fmd_hdl_debug(hdl, "zpool_vdev_%s: vdev %llu on '%s'",
	fault_device ? "fault" : "degrade", vdev_guid,
	zpool_get_name(zhp));

	/*
	* Attempt to substitute a hot spare.
	*/
	(void) replace_with_spare(hdl, zhp, vdev);

	zpool_close(zhp);
	}

	if (strcmp(class, FM_LIST_REPAIRED_CLASS) == 0 && repair_done &&
	nvlist_lookup_string(nvl, FM_SUSPECT_UUID, &uuid) == 0)
	fmd_case_uuresolved(hdl, uuid);
	}

	static const fmd_hdl_ops_t fmd_ops = {
	zfs_retire_recv, /* fmdo_recv */
	NULL, /* fmdo_timeout */
	NULL, /* fmdo_close */
	NULL, /* fmdo_stats */
	NULL, /* fmdo_gc */
	};

	static const fmd_prop_t fmd_props[] = {
	{ "spare_on_remove", FMD_TYPE_BOOL, "true" },
	{ NULL, 0, NULL }
	};

	static const fmd_hdl_info_t fmd_info = {
	"ZFS Retire Agent", "1.0", &fmd_ops, fmd_props
	};

	void
	_zfs_retire_init(fmd_hdl_t *hdl)
	{
	zfs_retire_data_t *zdp;
	libzfs_handle_t *zhdl;

	if ((zhdl = libzfs_init()) == NULL)
	return;

	if (fmd_hdl_register(hdl, FMD_API_VERSION, &fmd_info) != 0) {
	libzfs_fini(zhdl);
	return;
	}

	zdp = fmd_hdl_zalloc(hdl, sizeof (zfs_retire_data_t), FMD_SLEEP);
	zdp->zrd_hdl = zhdl;

	fmd_hdl_setspecific(hdl, zdp);
	}

	void
	_zfs_retire_fini(fmd_hdl_t *hdl)
	{
	zfs_retire_data_t *zdp = fmd_hdl_getspecific(hdl);

	if (zdp != NULL) {
	zfs_retire_clear_data(hdl, zdp);
	libzfs_fini(zdp->zrd_hdl);
	fmd_hdl_free(hdl, zdp, sizeof (zfs_retire_data_t));
	}
	}
	diff --git a/sys/contrib/openzfs/cmd/zed/zed.d/Makefile.am b/sys/contrib/openzfs/cmd/zed/zed.d/Makefile.am
	index 3eece353ef90..2c8173b3e769 100644
	--- a/sys/contrib/openzfs/cmd/zed/zed.d/Makefile.am
	+++ b/sys/contrib/openzfs/cmd/zed/zed.d/Makefile.am
	@@ -1,54 +1,57 @@
	include $(top_srcdir)/config/Rules.am
	include $(top_srcdir)/config/Substfiles.am
	include $(top_srcdir)/config/Shellcheck.am

	EXTRA_DIST += README

	zedconfdir = $(sysconfdir)/zfs/zed.d

	dist_zedconf_DATA = \
	zed-functions.sh \
	zed.rc

	zedexecdir = $(zfsexecdir)/zed.d

	dist_zedexec_SCRIPTS = \
	all-debug.sh \
	all-syslog.sh \
	data-notify.sh \
	generic-notify.sh \
	resilver_finish-notify.sh \
	scrub_finish-notify.sh \
	statechange-led.sh \
	statechange-notify.sh \
	vdev_clear-led.sh \
	vdev_attach-led.sh \
	pool_import-led.sh \
	resilver_finish-start-scrub.sh \
	trim_finish-notify.sh

	nodist_zedexec_SCRIPTS = history_event-zfs-list-cacher.sh

	SUBSTFILES += $(nodist_zedexec_SCRIPTS)

	zedconfdefaults = \
	all-syslog.sh \
	data-notify.sh \
	history_event-zfs-list-cacher.sh \
	resilver_finish-notify.sh \
	scrub_finish-notify.sh \
	statechange-led.sh \
	statechange-notify.sh \
	vdev_clear-led.sh \
	vdev_attach-led.sh \
	pool_import-led.sh \
	resilver_finish-start-scrub.sh

	install-data-hook:
	$(MKDIR_P) "$(DESTDIR)$(zedconfdir)"
	for f in $(zedconfdefaults); do \
	test -f "$(DESTDIR)$(zedconfdir)/$${f}" -o \
	-L "$(DESTDIR)$(zedconfdir)/$${f}" \|\| \
	ln -s "$(zedexecdir)/$${f}" "$(DESTDIR)$(zedconfdir)"; \
	done
	chmod 0600 "$(DESTDIR)$(zedconfdir)/zed.rc"
	+
	+# False positive: 1>&"${ZED_FLOCK_FD}" looks suspiciously similar to a >&filename bash extension
	+CHECKBASHISMS_IGNORE = -e 'should be >word 2>&1' -e '&"$${ZED_FLOCK_FD}"'
	diff --git a/sys/contrib/openzfs/cmd/zed/zed.d/all-debug.sh b/sys/contrib/openzfs/cmd/zed/zed.d/all-debug.sh
	index 14b39caacd9d..824c9fe423d7 100755
	--- a/sys/contrib/openzfs/cmd/zed/zed.d/all-debug.sh
	+++ b/sys/contrib/openzfs/cmd/zed/zed.d/all-debug.sh
	@@ -1,26 +1,22 @@
	#!/bin/sh
	#
	# Log all environment variables to ZED_DEBUG_LOG.
	#
	# This can be a useful aid when developing/debugging ZEDLETs since it shows the
	# environment variables defined for each zevent.

	[ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc"
	. "${ZED_ZEDLET_DIR}/zed-functions.sh"

	: "${ZED_DEBUG_LOG:="${TMPDIR:="/tmp"}/zed.debug.log"}"

	zed_exit_if_ignoring_this_event

	-lockfile="$(basename -- "${ZED_DEBUG_LOG}").lock"
	+zed_lock "${ZED_DEBUG_LOG}"
	+{
	+ printenv \| sort
	+ echo
	+} 1>&"${ZED_FLOCK_FD}"
	+zed_unlock "${ZED_DEBUG_LOG}"

	-umask 077
	-zed_lock "${lockfile}"
	-exec >> "${ZED_DEBUG_LOG}"
	-
	-printenv \| sort
	-echo
	-
	-exec >&-
	-zed_unlock "${lockfile}"
	exit 0
	diff --git a/sys/contrib/openzfs/cmd/zed/zed.d/all-syslog.sh b/sys/contrib/openzfs/cmd/zed/zed.d/all-syslog.sh
	index 270b1bc67e5c..b07cf0f295ad 100755
	--- a/sys/contrib/openzfs/cmd/zed/zed.d/all-syslog.sh
	+++ b/sys/contrib/openzfs/cmd/zed/zed.d/all-syslog.sh
	@@ -1,50 +1,51 @@
	#!/bin/sh
	#
	# Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
	# Copyright (c) 2020 by Delphix. All rights reserved.
	#

	#
	# Log the zevent via syslog.
	#

	[ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc"
	. "${ZED_ZEDLET_DIR}/zed-functions.sh"

	zed_exit_if_ignoring_this_event

	# build a string of name=value pairs for this event
	msg="eid=${ZEVENT_EID} class=${ZEVENT_SUBCLASS}"

	if [ "${ZED_SYSLOG_DISPLAY_GUIDS}" = "1" ]; then
	[ -n "${ZEVENT_POOL_GUID}" ] && msg="${msg} pool_guid=${ZEVENT_POOL_GUID}"
	[ -n "${ZEVENT_VDEV_GUID}" ] && msg="${msg} vdev_guid=${ZEVENT_VDEV_GUID}"
	else
	[ -n "${ZEVENT_POOL}" ] && msg="${msg} pool='${ZEVENT_POOL}'"
	[ -n "${ZEVENT_VDEV_PATH}" ] && msg="${msg} vdev=$(basename "${ZEVENT_VDEV_PATH}")"
	fi

	# log pool state if state is anything other than 'ACTIVE'
	[ -n "${ZEVENT_POOL_STATE_STR}" ] && [ "$ZEVENT_POOL_STATE" -ne 0 ] && \
	msg="${msg} pool_state=${ZEVENT_POOL_STATE_STR}"

	# Log the following payload nvpairs if they are present
	[ -n "${ZEVENT_VDEV_STATE_STR}" ] && msg="${msg} vdev_state=${ZEVENT_VDEV_STATE_STR}"
	[ -n "${ZEVENT_CKSUM_ALGORITHM}" ] && msg="${msg} algorithm=${ZEVENT_CKSUM_ALGORITHM}"
	[ -n "${ZEVENT_ZIO_SIZE}" ] && msg="${msg} size=${ZEVENT_ZIO_SIZE}"
	[ -n "${ZEVENT_ZIO_OFFSET}" ] && msg="${msg} offset=${ZEVENT_ZIO_OFFSET}"
	[ -n "${ZEVENT_ZIO_PRIORITY}" ] && msg="${msg} priority=${ZEVENT_ZIO_PRIORITY}"
	[ -n "${ZEVENT_ZIO_ERR}" ] && msg="${msg} err=${ZEVENT_ZIO_ERR}"
	[ -n "${ZEVENT_ZIO_FLAGS}" ] && msg="${msg} flags=$(printf '0x%x' "${ZEVENT_ZIO_FLAGS}")"

	# log delays that are >= 10 milisec
	[ -n "${ZEVENT_ZIO_DELAY}" ] && [ "$ZEVENT_ZIO_DELAY" -gt 10000000 ] && \
	msg="${msg} delay=$((ZEVENT_ZIO_DELAY / 1000000))ms"

	# list the bookmark data together
	+# shellcheck disable=SC2153
	[ -n "${ZEVENT_ZIO_OBJSET}" ] && \
	msg="${msg} bookmark=${ZEVENT_ZIO_OBJSET}:${ZEVENT_ZIO_OBJECT}:${ZEVENT_ZIO_LEVEL}:${ZEVENT_ZIO_BLKID}"

	zed_log_msg "${msg}"

	exit 0
	diff --git a/sys/contrib/openzfs/cmd/zed/zed.d/history_event-zfs-list-cacher.sh.in b/sys/contrib/openzfs/cmd/zed/zed.d/history_event-zfs-list-cacher.sh.in
	index 15f0a8ed6189..db40fa36d668 100755
	--- a/sys/contrib/openzfs/cmd/zed/zed.d/history_event-zfs-list-cacher.sh.in
	+++ b/sys/contrib/openzfs/cmd/zed/zed.d/history_event-zfs-list-cacher.sh.in
	@@ -1,85 +1,84 @@
	#!/bin/sh
	#
	# Track changes to enumerated pools for use in early-boot
	set -ef

	-FSLIST_DIR="@sysconfdir@/zfs/zfs-list.cache"
	-FSLIST_TMP="@runstatedir@/zfs-list.cache.new"
	-FSLIST="${FSLIST_DIR}/${ZEVENT_POOL}"
	+FSLIST="@sysconfdir@/zfs/zfs-list.cache/${ZEVENT_POOL}"
	+FSLIST_TMP="@runstatedir@/zfs-list.cache@${ZEVENT_POOL}"

	# If the pool specific cache file is not writeable, abort
	[ -w "${FSLIST}" ] \|\| exit 0

	[ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc"
	. "${ZED_ZEDLET_DIR}/zed-functions.sh"

	[ "$ZEVENT_SUBCLASS" != "history_event" ] && exit 0
	zed_check_cmd "${ZFS}" sort diff

	# If we are acting on a snapshot, we have nothing to do
	[ "${ZEVENT_HISTORY_DSNAME%@*}" = "${ZEVENT_HISTORY_DSNAME}" ] \|\| exit 0

	-# We obtain a lock on zfs-list to avoid any simultaneous writes.
	+# We lock the output file to avoid simultaneous writes.
	# If we run into trouble, log and drop the lock
	abort_alter() {
	- zed_log_msg "Error updating zfs-list.cache!"
	- zed_unlock zfs-list
	+ zed_log_msg "Error updating zfs-list.cache for ${ZEVENT_POOL}!"
	+ zed_unlock "${FSLIST}"
	}

	finished() {
	- zed_unlock zfs-list
	+ zed_unlock "${FSLIST}"
	trap - EXIT
	exit 0
	}

	case "${ZEVENT_HISTORY_INTERNAL_NAME}" in
	create\|"finish receiving"\|import\|destroy\|rename)
	;;

	export)
	- zed_lock zfs-list
	+ zed_lock "${FSLIST}"
	trap abort_alter EXIT
	echo > "${FSLIST}"
	finished
	;;

	set\|inherit)
	# Only act if one of the tracked properties is altered.
	case "${ZEVENT_HISTORY_INTERNAL_STR%%=*}" in
	canmount\|mountpoint\|atime\|relatime\|devices\|exec\|readonly\| \
	setuid\|nbmand\|encroot\|keylocation\|org.openzfs.systemd:requires\| \
	org.openzfs.systemd:requires-mounts-for\| \
	org.openzfs.systemd:before\|org.openzfs.systemd:after\| \
	org.openzfs.systemd:wanted-by\|org.openzfs.systemd:required-by\| \
	org.openzfs.systemd:nofail\|org.openzfs.systemd:ignore \
	) ;;
	*) exit 0 ;;
	esac
	;;

	*)
	# Ignore all other events.
	exit 0
	;;
	esac

	-zed_lock zfs-list
	+zed_lock "${FSLIST}"
	trap abort_alter EXIT

	PROPS="name,mountpoint,canmount,atime,relatime,devices,exec\
	,readonly,setuid,nbmand,encroot,keylocation\
	,org.openzfs.systemd:requires,org.openzfs.systemd:requires-mounts-for\
	,org.openzfs.systemd:before,org.openzfs.systemd:after\
	,org.openzfs.systemd:wanted-by,org.openzfs.systemd:required-by\
	,org.openzfs.systemd:nofail,org.openzfs.systemd:ignore"

	"${ZFS}" list -H -t filesystem -o $PROPS -r "${ZEVENT_POOL}" > "${FSLIST_TMP}"

	# Sort the output so that it is stable
	sort "${FSLIST_TMP}" -o "${FSLIST_TMP}"

	# Don't modify the file if it hasn't changed
	-diff -q "${FSLIST_TMP}" "${FSLIST}" \|\| mv "${FSLIST_TMP}" "${FSLIST}"
	+diff -q "${FSLIST_TMP}" "${FSLIST}" \|\| cat "${FSLIST_TMP}" > "${FSLIST}"
	rm -f "${FSLIST_TMP}"

	finished
	diff --git a/sys/contrib/openzfs/cmd/zed/zed.d/zed-functions.sh b/sys/contrib/openzfs/cmd/zed/zed.d/zed-functions.sh
	index c4ed5aa8ac7a..9f8531d737a6 100644
	--- a/sys/contrib/openzfs/cmd/zed/zed.d/zed-functions.sh
	+++ b/sys/contrib/openzfs/cmd/zed/zed.d/zed-functions.sh
	@@ -1,614 +1,614 @@
	#!/bin/sh
	# shellcheck disable=SC2039
	# zed-functions.sh
	#
	# ZED helper functions for use in ZEDLETs


	# Variable Defaults
	#
	: "${ZED_LOCKDIR:="/var/lock"}"
	: "${ZED_NOTIFY_INTERVAL_SECS:=3600}"
	: "${ZED_NOTIFY_VERBOSE:=0}"
	: "${ZED_RUNDIR:="/var/run"}"
	: "${ZED_SYSLOG_PRIORITY:="daemon.notice"}"
	: "${ZED_SYSLOG_TAG:="zed"}"

	ZED_FLOCK_FD=8


	# zed_check_cmd (cmd, ...)
	#
	# For each argument given, search PATH for the executable command [cmd].
	# Log a message if [cmd] is not found.
	#
	# Arguments
	# cmd: name of executable command for which to search
	#
	# Return
	# 0 if all commands are found in PATH and are executable
	# n for a count of the command executables that are not found
	#
	zed_check_cmd()
	{
	local cmd
	local rv=0

	for cmd; do
	if ! command -v "${cmd}" >/dev/null 2>&1; then
	zed_log_err "\"${cmd}\" not installed"
	rv=$((rv + 1))
	fi
	done
	return "${rv}"
	}


	# zed_log_msg (msg, ...)
	#
	# Write all argument strings to the system log.
	#
	# Globals
	# ZED_SYSLOG_PRIORITY
	# ZED_SYSLOG_TAG
	#
	# Return
	# nothing
	#
	zed_log_msg()
	{
	logger -p "${ZED_SYSLOG_PRIORITY}" -t "${ZED_SYSLOG_TAG}" -- "$@"
	}


	# zed_log_err (msg, ...)
	#
	# Write an error message to the system log. This message will contain the
	# script name, EID, and all argument strings.
	#
	# Globals
	# ZED_SYSLOG_PRIORITY
	# ZED_SYSLOG_TAG
	# ZEVENT_EID
	#
	# Return
	# nothing
	#
	zed_log_err()
	{
	logger -p "${ZED_SYSLOG_PRIORITY}" -t "${ZED_SYSLOG_TAG}" -- "error:" \
	"$(basename -- "$0"):""${ZEVENT_EID:+" eid=${ZEVENT_EID}:"}" "$@"
	}


	# zed_lock (lockfile, [fd])
	#
	# Obtain an exclusive (write) lock on [lockfile]. If the lock cannot be
	# immediately acquired, wait until it becomes available.
	#
	# Every zed_lock() must be paired with a corresponding zed_unlock().
	#
	# By default, flock-style locks associate the lockfile with file descriptor 8.
	# The bash manpage warns that file descriptors >9 should be used with care as
	# they may conflict with file descriptors used internally by the shell. File
	# descriptor 9 is reserved for zed_rate_limit(). If concurrent locks are held
	# within the same process, they must use different file descriptors (preferably
	# decrementing from 8); otherwise, obtaining a new lock with a given file
	# descriptor will release the previous lock associated with that descriptor.
	#
	# Arguments
	# lockfile: pathname of the lock file; the lock will be stored in
	# ZED_LOCKDIR unless the pathname contains a "/".
	# fd: integer for the file descriptor used by flock (OPTIONAL unless holding
	# concurrent locks)
	#
	# Globals
	# ZED_FLOCK_FD
	# ZED_LOCKDIR
	#
	# Return
	# nothing
	#
	zed_lock()
	{
	local lockfile="$1"
	local fd="${2:-${ZED_FLOCK_FD}}"
	local umask_bak
	local err

	[ -n "${lockfile}" ] \|\| return
	if ! expr "${lockfile}" : '.*/' >/dev/null 2>&1; then
	lockfile="${ZED_LOCKDIR}/${lockfile}"
	fi

	umask_bak="$(umask)"
	umask 077

	# Obtain a lock on the file bound to the given file descriptor.
	#
	- eval "exec ${fd}> '${lockfile}'"
	+ eval "exec ${fd}>> '${lockfile}'"
	if ! err="$(flock --exclusive "${fd}" 2>&1)"; then
	zed_log_err "failed to lock \"${lockfile}\": ${err}"
	fi

	umask "${umask_bak}"
	}


	# zed_unlock (lockfile, [fd])
	#
	# Release the lock on [lockfile].
	#
	# Arguments
	# lockfile: pathname of the lock file
	# fd: integer for the file descriptor used by flock (must match the file
	# descriptor passed to the zed_lock function call)
	#
	# Globals
	# ZED_FLOCK_FD
	# ZED_LOCKDIR
	#
	# Return
	# nothing
	#
	zed_unlock()
	{
	local lockfile="$1"
	local fd="${2:-${ZED_FLOCK_FD}}"
	local err

	[ -n "${lockfile}" ] \|\| return
	if ! expr "${lockfile}" : '.*/' >/dev/null 2>&1; then
	lockfile="${ZED_LOCKDIR}/${lockfile}"
	fi

	# Release the lock and close the file descriptor.
	if ! err="$(flock --unlock "${fd}" 2>&1)"; then
	zed_log_err "failed to unlock \"${lockfile}\": ${err}"
	fi
	eval "exec ${fd}>&-"
	}


	# zed_notify (subject, pathname)
	#
	# Send a notification via all available methods.
	#
	# Arguments
	# subject: notification subject
	# pathname: pathname containing the notification message (OPTIONAL)
	#
	# Return
	# 0: notification succeeded via at least one method
	# 1: notification failed
	# 2: no notification methods configured
	#
	zed_notify()
	{
	local subject="$1"
	local pathname="$2"
	local num_success=0
	local num_failure=0

	zed_notify_email "${subject}" "${pathname}"; rv=$?
	[ "${rv}" -eq 0 ] && num_success=$((num_success + 1))
	[ "${rv}" -eq 1 ] && num_failure=$((num_failure + 1))

	zed_notify_pushbullet "${subject}" "${pathname}"; rv=$?
	[ "${rv}" -eq 0 ] && num_success=$((num_success + 1))
	[ "${rv}" -eq 1 ] && num_failure=$((num_failure + 1))

	zed_notify_slack_webhook "${subject}" "${pathname}"; rv=$?
	[ "${rv}" -eq 0 ] && num_success=$((num_success + 1))
	[ "${rv}" -eq 1 ] && num_failure=$((num_failure + 1))

	zed_notify_pushover "${subject}" "${pathname}"; rv=$?
	[ "${rv}" -eq 0 ] && num_success=$((num_success + 1))
	[ "${rv}" -eq 1 ] && num_failure=$((num_failure + 1))

	[ "${num_success}" -gt 0 ] && return 0
	[ "${num_failure}" -gt 0 ] && return 1
	return 2
	}


	# zed_notify_email (subject, pathname)
	#
	# Send a notification via email to the address specified by ZED_EMAIL_ADDR.
	#
	# Requires the mail executable to be installed in the standard PATH, or
	# ZED_EMAIL_PROG to be defined with the pathname of an executable capable of
	# reading a message body from stdin.
	#
	# Command-line options to the mail executable can be specified in
	# ZED_EMAIL_OPTS. This undergoes the following keyword substitutions:
	# - @ADDRESS@ is replaced with the space-delimited recipient email address(es)
	# - @SUBJECT@ is replaced with the notification subject
	#
	# Arguments
	# subject: notification subject
	# pathname: pathname containing the notification message (OPTIONAL)
	#
	# Globals
	# ZED_EMAIL_PROG
	# ZED_EMAIL_OPTS
	# ZED_EMAIL_ADDR
	#
	# Return
	# 0: notification sent
	# 1: notification failed
	# 2: not configured
	#
	zed_notify_email()
	{
	local subject="$1"
	local pathname="${2:-"/dev/null"}"

	: "${ZED_EMAIL_PROG:="mail"}"
	: "${ZED_EMAIL_OPTS:="-s '@SUBJECT@' @ADDRESS@"}"

	# For backward compatibility with ZED_EMAIL.
	if [ -n "${ZED_EMAIL}" ] && [ -z "${ZED_EMAIL_ADDR}" ]; then
	ZED_EMAIL_ADDR="${ZED_EMAIL}"
	fi
	[ -n "${ZED_EMAIL_ADDR}" ] \|\| return 2

	zed_check_cmd "${ZED_EMAIL_PROG}" \|\| return 1

	[ -n "${subject}" ] \|\| return 1
	if [ ! -r "${pathname}" ]; then
	zed_log_err \
	"$(basename "${ZED_EMAIL_PROG}") cannot read \"${pathname}\""
	return 1
	fi

	ZED_EMAIL_OPTS="$(echo "${ZED_EMAIL_OPTS}" \
	\| sed -e "s/@ADDRESS@/${ZED_EMAIL_ADDR}/g" \
	-e "s/@SUBJECT@/${subject}/g")"

	# shellcheck disable=SC2086
	${ZED_EMAIL_PROG} ${ZED_EMAIL_OPTS} < "${pathname}" >/dev/null 2>&1
	rv=$?
	if [ "${rv}" -ne 0 ]; then
	zed_log_err "$(basename "${ZED_EMAIL_PROG}") exit=${rv}"
	return 1
	fi
	return 0
	}


	# zed_notify_pushbullet (subject, pathname)
	#
	# Send a notification via Pushbullet <https://www.pushbullet.com/>.
	# The access token (ZED_PUSHBULLET_ACCESS_TOKEN) identifies this client to the
	# Pushbullet server. The optional channel tag (ZED_PUSHBULLET_CHANNEL_TAG) is
	# for pushing to notification feeds that can be subscribed to; if a channel is
	# not defined, push notifications will instead be sent to all devices
	# associated with the account specified by the access token.
	#
	# Requires awk, curl, and sed executables to be installed in the standard PATH.
	#
	# References
	# https://docs.pushbullet.com/
	# https://www.pushbullet.com/security
	#
	# Arguments
	# subject: notification subject
	# pathname: pathname containing the notification message (OPTIONAL)
	#
	# Globals
	# ZED_PUSHBULLET_ACCESS_TOKEN
	# ZED_PUSHBULLET_CHANNEL_TAG
	#
	# Return
	# 0: notification sent
	# 1: notification failed
	# 2: not configured
	#
	zed_notify_pushbullet()
	{
	local subject="$1"
	local pathname="${2:-"/dev/null"}"
	local msg_body
	local msg_tag
	local msg_json
	local msg_out
	local msg_err
	local url="https://api.pushbullet.com/v2/pushes"

	[ -n "${ZED_PUSHBULLET_ACCESS_TOKEN}" ] \|\| return 2

	[ -n "${subject}" ] \|\| return 1
	if [ ! -r "${pathname}" ]; then
	zed_log_err "pushbullet cannot read \"${pathname}\""
	return 1
	fi

	zed_check_cmd "awk" "curl" "sed" \|\| return 1

	# Escape the following characters in the message body for JSON:
	# newline, backslash, double quote, horizontal tab, vertical tab,
	# and carriage return.
	#
	msg_body="$(awk '{ ORS="\\n" } { gsub(/\\/, "\\\\"); gsub(/"/, "\\\"");
	gsub(/\t/, "\\t"); gsub(/\f/, "\\f"); gsub(/\r/, "\\r"); print }' \
	"${pathname}")"

	# Push to a channel if one is configured.
	#
	[ -n "${ZED_PUSHBULLET_CHANNEL_TAG}" ] && msg_tag="$(printf \
	'"channel_tag": "%s", ' "${ZED_PUSHBULLET_CHANNEL_TAG}")"

	# Construct the JSON message for pushing a note.
	#
	msg_json="$(printf '{%s"type": "note", "title": "%s", "body": "%s"}' \
	"${msg_tag}" "${subject}" "${msg_body}")"

	# Send the POST request and check for errors.
	#
	msg_out="$(curl -u "${ZED_PUSHBULLET_ACCESS_TOKEN}:" -X POST "${url}" \
	--header "Content-Type: application/json" --data-binary "${msg_json}" \
	2>/dev/null)"; rv=$?
	if [ "${rv}" -ne 0 ]; then
	zed_log_err "curl exit=${rv}"
	return 1
	fi
	msg_err="$(echo "${msg_out}" \
	\| sed -n -e 's/."error" :."message" : "$[^"]$".*/\1/p')"
	if [ -n "${msg_err}" ]; then
	zed_log_err "pushbullet \"${msg_err}"\"
	return 1
	fi
	return 0
	}


	# zed_notify_slack_webhook (subject, pathname)
	#
	# Notification via Slack Webhook <https://api.slack.com/incoming-webhooks>.
	# The Webhook URL (ZED_SLACK_WEBHOOK_URL) identifies this client to the
	# Slack channel.
	#
	# Requires awk, curl, and sed executables to be installed in the standard PATH.
	#
	# References
	# https://api.slack.com/incoming-webhooks
	#
	# Arguments
	# subject: notification subject
	# pathname: pathname containing the notification message (OPTIONAL)
	#
	# Globals
	# ZED_SLACK_WEBHOOK_URL
	#
	# Return
	# 0: notification sent
	# 1: notification failed
	# 2: not configured
	#
	zed_notify_slack_webhook()
	{
	[ -n "${ZED_SLACK_WEBHOOK_URL}" ] \|\| return 2

	local subject="$1"
	local pathname="${2:-"/dev/null"}"
	local msg_body
	local msg_tag
	local msg_json
	local msg_out
	local msg_err
	local url="${ZED_SLACK_WEBHOOK_URL}"

	[ -n "${subject}" ] \|\| return 1
	if [ ! -r "${pathname}" ]; then
	zed_log_err "slack webhook cannot read \"${pathname}\""
	return 1
	fi

	zed_check_cmd "awk" "curl" "sed" \|\| return 1

	# Escape the following characters in the message body for JSON:
	# newline, backslash, double quote, horizontal tab, vertical tab,
	# and carriage return.
	#
	msg_body="$(awk '{ ORS="\\n" } { gsub(/\\/, "\\\\"); gsub(/"/, "\\\"");
	gsub(/\t/, "\\t"); gsub(/\f/, "\\f"); gsub(/\r/, "\\r"); print }' \
	"${pathname}")"

	# Construct the JSON message for posting.
	#
	msg_json="$(printf '{"text": "%s\n%s"}' "${subject}" "${msg_body}" )"

	# Send the POST request and check for errors.
	#
	msg_out="$(curl -X POST "${url}" \
	--header "Content-Type: application/json" --data-binary "${msg_json}" \
	2>/dev/null)"; rv=$?
	if [ "${rv}" -ne 0 ]; then
	zed_log_err "curl exit=${rv}"
	return 1
	fi
	msg_err="$(echo "${msg_out}" \
	\| sed -n -e 's/."error" :."message" : "$[^"]$".*/\1/p')"
	if [ -n "${msg_err}" ]; then
	zed_log_err "slack webhook \"${msg_err}"\"
	return 1
	fi
	return 0
	}

	# zed_notify_pushover (subject, pathname)
	#
	# Send a notification via Pushover <https://pushover.net/>.
	# The access token (ZED_PUSHOVER_TOKEN) identifies this client to the
	# Pushover server. The user token (ZED_PUSHOVER_USER) defines the user or
	# group to which the notification will be sent.
	#
	# Requires curl and sed executables to be installed in the standard PATH.
	#
	# References
	# https://pushover.net/api
	#
	# Arguments
	# subject: notification subject
	# pathname: pathname containing the notification message (OPTIONAL)
	#
	# Globals
	# ZED_PUSHOVER_TOKEN
	# ZED_PUSHOVER_USER
	#
	# Return
	# 0: notification sent
	# 1: notification failed
	# 2: not configured
	#
	zed_notify_pushover()
	{
	local subject="$1"
	local pathname="${2:-"/dev/null"}"
	local msg_body
	local msg_out
	local msg_err
	local url="https://api.pushover.net/1/messages.json"

	[ -n "${ZED_PUSHOVER_TOKEN}" ] && [ -n "${ZED_PUSHOVER_USER}" ] \|\| return 2

	if [ ! -r "${pathname}" ]; then
	zed_log_err "pushover cannot read \"${pathname}\""
	return 1
	fi

	zed_check_cmd "curl" "sed" \|\| return 1

	# Read the message body in.
	#
	msg_body="$(cat "${pathname}")"

	if [ -z "${msg_body}" ]
	then
	msg_body=$subject
	subject=""
	fi

	# Send the POST request and check for errors.
	#
	msg_out="$( \
	curl \
	--form-string "token=${ZED_PUSHOVER_TOKEN}" \
	--form-string "user=${ZED_PUSHOVER_USER}" \
	--form-string "message=${msg_body}" \
	--form-string "title=${subject}" \
	"${url}" \
	2>/dev/null \
	)"; rv=$?
	if [ "${rv}" -ne 0 ]; then
	zed_log_err "curl exit=${rv}"
	return 1
	fi
	msg_err="$(echo "${msg_out}" \
	\| sed -n -e 's/."errors" :.\[$.$\].*/\1/p')"
	if [ -n "${msg_err}" ]; then
	zed_log_err "pushover \"${msg_err}"\"
	return 1
	fi
	return 0
	}


	# zed_rate_limit (tag, [interval])
	#
	# Check whether an event of a given type [tag] has already occurred within the
	# last [interval] seconds.
	#
	# This function obtains a lock on the statefile using file descriptor 9.
	#
	# Arguments
	# tag: arbitrary string for grouping related events to rate-limit
	# interval: time interval in seconds (OPTIONAL)
	#
	# Globals
	# ZED_NOTIFY_INTERVAL_SECS
	# ZED_RUNDIR
	#
	# Return
	# 0 if the event should be processed
	# 1 if the event should be dropped
	#
	# State File Format
	# time;tag
	#
	zed_rate_limit()
	{
	local tag="$1"
	local interval="${2:-${ZED_NOTIFY_INTERVAL_SECS}}"
	local lockfile="zed.zedlet.state.lock"
	local lockfile_fd=9
	local statefile="${ZED_RUNDIR}/zed.zedlet.state"
	local time_now
	local time_prev
	local umask_bak
	local rv=0

	[ -n "${tag}" ] \|\| return 0

	zed_lock "${lockfile}" "${lockfile_fd}"
	time_now="$(date +%s)"
	time_prev="$(grep -E "^[0-9]+;${tag}\$" "${statefile}" 2>/dev/null \
	\| tail -1 \| cut -d\; -f1)"

	if [ -n "${time_prev}" ] \
	&& [ "$((time_now - time_prev))" -lt "${interval}" ]; then
	rv=1
	else
	umask_bak="$(umask)"
	umask 077
	grep -E -v "^[0-9]+;${tag}\$" "${statefile}" 2>/dev/null \
	> "${statefile}.$$"
	echo "${time_now};${tag}" >> "${statefile}.$$"
	mv -f "${statefile}.$$" "${statefile}"
	umask "${umask_bak}"
	fi

	zed_unlock "${lockfile}" "${lockfile_fd}"
	return "${rv}"
	}


	# zed_guid_to_pool (guid)
	#
	# Convert a pool GUID into its pool name (like "tank")
	# Arguments
	# guid: pool GUID (decimal or hex)
	#
	# Return
	# Pool name
	#
	zed_guid_to_pool()
	{
	if [ -z "$1" ] ; then
	return
	fi

	guid="$(printf "%u" "$1")"
	$ZPOOL get -H -ovalue,name guid \| awk '$1 == '"$guid"' {print $2; exit}'
	}

	# zed_exit_if_ignoring_this_event
	#
	# Exit the script if we should ignore this event, as determined by
	# $ZED_SYSLOG_SUBCLASS_INCLUDE and $ZED_SYSLOG_SUBCLASS_EXCLUDE in zed.rc.
	# This function assumes you've imported the normal zed variables.
	zed_exit_if_ignoring_this_event()
	{
	if [ -n "${ZED_SYSLOG_SUBCLASS_INCLUDE}" ]; then
	eval "case ${ZEVENT_SUBCLASS} in
	${ZED_SYSLOG_SUBCLASS_INCLUDE});;
	*) exit 0;;
	esac"
	elif [ -n "${ZED_SYSLOG_SUBCLASS_EXCLUDE}" ]; then
	eval "case ${ZEVENT_SUBCLASS} in
	${ZED_SYSLOG_SUBCLASS_EXCLUDE}) exit 0;;
	*);;
	esac"
	fi
	}
	diff --git a/sys/contrib/openzfs/cmd/zfs/zfs_main.c b/sys/contrib/openzfs/cmd/zfs/zfs_main.c
	index c583053dbaec..38bfdc91aeaf 100644
	--- a/sys/contrib/openzfs/cmd/zfs/zfs_main.c
	+++ b/sys/contrib/openzfs/cmd/zfs/zfs_main.c
	@@ -1,8760 +1,8794 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2011, 2020 by Delphix. All rights reserved.
	* Copyright 2012 Milan Jurik. All rights reserved.
	* Copyright (c) 2012, Joyent, Inc. All rights reserved.
	* Copyright (c) 2013 Steven Hartland. All rights reserved.
	* Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>.
	* Copyright 2016 Nexenta Systems, Inc.
	* Copyright (c) 2019 Datto Inc.
	* Copyright (c) 2019, loli10K <ezomori.nozomu@gmail.com>
	* Copyright 2019 Joyent, Inc.
	* Copyright (c) 2019, 2020 by Christian Schwarz. All rights reserved.
	*/

	#include <assert.h>
	#include <ctype.h>
	#include <sys/debug.h>
	#include <errno.h>
	#include <getopt.h>
	#include <libgen.h>
	#include <libintl.h>
	#include <libuutil.h>
	#include <libnvpair.h>
	#include <locale.h>
	#include <stddef.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <strings.h>
	#include <unistd.h>
	#include <fcntl.h>
	#include <zone.h>
	#include <grp.h>
	#include <pwd.h>
	#include <umem.h>
	#include <pthread.h>
	#include <signal.h>
	#include <sys/list.h>
	#include <sys/mkdev.h>
	#include <sys/mntent.h>
	#include <sys/mnttab.h>
	#include <sys/mount.h>
	#include <sys/stat.h>
	#include <sys/fs/zfs.h>
	#include <sys/systeminfo.h>
	#include <sys/types.h>
	#include <time.h>
	#include <sys/zfs_project.h>

	#include <libzfs.h>
	#include <libzfs_core.h>
	#include <zfs_prop.h>
	#include <zfs_deleg.h>
	#include <libzutil.h>
	#ifdef HAVE_IDMAP
	#include <aclutils.h>
	#include <directory.h>
	#endif /* HAVE_IDMAP */

	#include "zfs_iter.h"
	#include "zfs_util.h"
	#include "zfs_comutil.h"
	#include "zfs_projectutil.h"

	libzfs_handle_t *g_zfs;

	static char history_str[HIS_MAX_RECORD_LEN];
	static boolean_t log_history = B_TRUE;

	static int zfs_do_clone(int argc, char **argv);
	static int zfs_do_create(int argc, char **argv);
	static int zfs_do_destroy(int argc, char **argv);
	static int zfs_do_get(int argc, char **argv);
	static int zfs_do_inherit(int argc, char **argv);
	static int zfs_do_list(int argc, char **argv);
	static int zfs_do_mount(int argc, char **argv);
	static int zfs_do_rename(int argc, char **argv);
	static int zfs_do_rollback(int argc, char **argv);
	static int zfs_do_set(int argc, char **argv);
	static int zfs_do_upgrade(int argc, char **argv);
	static int zfs_do_snapshot(int argc, char **argv);
	static int zfs_do_unmount(int argc, char **argv);
	static int zfs_do_share(int argc, char **argv);
	static int zfs_do_unshare(int argc, char **argv);
	static int zfs_do_send(int argc, char **argv);
	static int zfs_do_receive(int argc, char **argv);
	static int zfs_do_promote(int argc, char **argv);
	static int zfs_do_userspace(int argc, char **argv);
	static int zfs_do_allow(int argc, char **argv);
	static int zfs_do_unallow(int argc, char **argv);
	static int zfs_do_hold(int argc, char **argv);
	static int zfs_do_holds(int argc, char **argv);
	static int zfs_do_release(int argc, char **argv);
	static int zfs_do_diff(int argc, char **argv);
	static int zfs_do_bookmark(int argc, char **argv);
	static int zfs_do_channel_program(int argc, char **argv);
	static int zfs_do_load_key(int argc, char **argv);
	static int zfs_do_unload_key(int argc, char **argv);
	static int zfs_do_change_key(int argc, char **argv);
	static int zfs_do_project(int argc, char **argv);
	static int zfs_do_version(int argc, char **argv);
	static int zfs_do_redact(int argc, char **argv);
	static int zfs_do_wait(int argc, char **argv);

	#ifdef __FreeBSD__
	static int zfs_do_jail(int argc, char **argv);
	static int zfs_do_unjail(int argc, char **argv);
	#endif

	/*
	* Enable a reasonable set of defaults for libumem debugging on DEBUG builds.
	*/

	#ifdef DEBUG
	const char *
	_umem_debug_init(void)
	{
	return ("default,verbose"); /* $UMEM_DEBUG setting */
	}

	const char *
	_umem_logging_init(void)
	{
	return ("fail,contents"); /* $UMEM_LOGGING setting */
	}
	#endif

	typedef enum {
	HELP_CLONE,
	HELP_CREATE,
	HELP_DESTROY,
	HELP_GET,
	HELP_INHERIT,
	HELP_UPGRADE,
	HELP_LIST,
	HELP_MOUNT,
	HELP_PROMOTE,
	HELP_RECEIVE,
	HELP_RENAME,
	HELP_ROLLBACK,
	HELP_SEND,
	HELP_SET,
	HELP_SHARE,
	HELP_SNAPSHOT,
	HELP_UNMOUNT,
	HELP_UNSHARE,
	HELP_ALLOW,
	HELP_UNALLOW,
	HELP_USERSPACE,
	HELP_GROUPSPACE,
	HELP_PROJECTSPACE,
	HELP_PROJECT,
	HELP_HOLD,
	HELP_HOLDS,
	HELP_RELEASE,
	HELP_DIFF,
	HELP_BOOKMARK,
	HELP_CHANNEL_PROGRAM,
	HELP_LOAD_KEY,
	HELP_UNLOAD_KEY,
	HELP_CHANGE_KEY,
	HELP_VERSION,
	HELP_REDACT,
	HELP_JAIL,
	HELP_UNJAIL,
	HELP_WAIT,
	} zfs_help_t;

	typedef struct zfs_command {
	const char *name;
	int (func)(int argc, char *argv);
	zfs_help_t usage;
	} zfs_command_t;

	/*
	* Master command table. Each ZFS command has a name, associated function, and
	* usage message. The usage messages need to be internationalized, so we have
	* to have a function to return the usage message based on a command index.
	*
	* These commands are organized according to how they are displayed in the usage
	* message. An empty command (one with a NULL name) indicates an empty line in
	* the generic usage message.
	*/
	static zfs_command_t command_table[] = {
	{ "version", zfs_do_version, HELP_VERSION },
	{ NULL },
	{ "create", zfs_do_create, HELP_CREATE },
	{ "destroy", zfs_do_destroy, HELP_DESTROY },
	{ NULL },
	{ "snapshot", zfs_do_snapshot, HELP_SNAPSHOT },
	{ "rollback", zfs_do_rollback, HELP_ROLLBACK },
	{ "clone", zfs_do_clone, HELP_CLONE },
	{ "promote", zfs_do_promote, HELP_PROMOTE },
	{ "rename", zfs_do_rename, HELP_RENAME },
	{ "bookmark", zfs_do_bookmark, HELP_BOOKMARK },
	{ "program", zfs_do_channel_program, HELP_CHANNEL_PROGRAM },
	{ NULL },
	{ "list", zfs_do_list, HELP_LIST },
	{ NULL },
	{ "set", zfs_do_set, HELP_SET },
	{ "get", zfs_do_get, HELP_GET },
	{ "inherit", zfs_do_inherit, HELP_INHERIT },
	{ "upgrade", zfs_do_upgrade, HELP_UPGRADE },
	{ NULL },
	{ "userspace", zfs_do_userspace, HELP_USERSPACE },
	{ "groupspace", zfs_do_userspace, HELP_GROUPSPACE },
	{ "projectspace", zfs_do_userspace, HELP_PROJECTSPACE },
	{ NULL },
	{ "project", zfs_do_project, HELP_PROJECT },
	{ NULL },
	{ "mount", zfs_do_mount, HELP_MOUNT },
	{ "unmount", zfs_do_unmount, HELP_UNMOUNT },
	{ "share", zfs_do_share, HELP_SHARE },
	{ "unshare", zfs_do_unshare, HELP_UNSHARE },
	{ NULL },
	{ "send", zfs_do_send, HELP_SEND },
	{ "receive", zfs_do_receive, HELP_RECEIVE },
	{ NULL },
	{ "allow", zfs_do_allow, HELP_ALLOW },
	{ NULL },
	{ "unallow", zfs_do_unallow, HELP_UNALLOW },
	{ NULL },
	{ "hold", zfs_do_hold, HELP_HOLD },
	{ "holds", zfs_do_holds, HELP_HOLDS },
	{ "release", zfs_do_release, HELP_RELEASE },
	{ "diff", zfs_do_diff, HELP_DIFF },
	{ "load-key", zfs_do_load_key, HELP_LOAD_KEY },
	{ "unload-key", zfs_do_unload_key, HELP_UNLOAD_KEY },
	{ "change-key", zfs_do_change_key, HELP_CHANGE_KEY },
	{ "redact", zfs_do_redact, HELP_REDACT },
	{ "wait", zfs_do_wait, HELP_WAIT },

	#ifdef __FreeBSD__
	{ "jail", zfs_do_jail, HELP_JAIL },
	{ "unjail", zfs_do_unjail, HELP_UNJAIL },
	#endif
	};

	#define NCOMMAND (sizeof (command_table) / sizeof (command_table[0]))

	zfs_command_t *current_command;

	static const char *
	get_usage(zfs_help_t idx)
	{
	switch (idx) {
	case HELP_CLONE:
	return (gettext("\tclone [-p] [-o property=value] ... "
	"<snapshot> <filesystem\|volume>\n"));
	case HELP_CREATE:
	return (gettext("\tcreate [-Pnpuv] [-o property=value] ... "
	"<filesystem>\n"
	"\tcreate [-Pnpsv] [-b blocksize] [-o property=value] ... "
	"-V <size> <volume>\n"));
	case HELP_DESTROY:
	return (gettext("\tdestroy [-fnpRrv] <filesystem\|volume>\n"
	"\tdestroy [-dnpRrv] "
	"<filesystem\|volume>@<snap>[%<snap>][,...]\n"
	"\tdestroy <filesystem\|volume>#<bookmark>\n"));
	case HELP_GET:
	return (gettext("\tget [-rHp] [-d max] "
	"[-o \"all\" \| field[,...]]\n"
	"\t [-t type[,...]] [-s source[,...]]\n"
	"\t <\"all\" \| property[,...]> "
	"[filesystem\|volume\|snapshot\|bookmark] ...\n"));
	case HELP_INHERIT:
	return (gettext("\tinherit [-rS] <property> "
	"<filesystem\|volume\|snapshot> ...\n"));
	case HELP_UPGRADE:
	return (gettext("\tupgrade [-v]\n"
	"\tupgrade [-r] [-V version] <-a \| filesystem ...>\n"));
	case HELP_LIST:
	return (gettext("\tlist [-Hp] [-r\|-d max] [-o property[,...]] "
	"[-s property]...\n\t [-S property]... [-t type[,...]] "
	"[filesystem\|volume\|snapshot] ...\n"));
	case HELP_MOUNT:
	return (gettext("\tmount\n"
	"\tmount [-flvO] [-o opts] <-a \| filesystem>\n"));
	case HELP_PROMOTE:
	return (gettext("\tpromote <clone-filesystem>\n"));
	case HELP_RECEIVE:
	return (gettext("\treceive [-vMnsFhu] "
	"[-o <property>=<value>] ... [-x <property>] ...\n"
	"\t <filesystem\|volume\|snapshot>\n"
	"\treceive [-vMnsFhu] [-o <property>=<value>] ... "
	"[-x <property>] ... \n"
	"\t [-d \| -e] <filesystem>\n"
	"\treceive -A <filesystem\|volume>\n"));
	case HELP_RENAME:
	return (gettext("\trename [-f] <filesystem\|volume\|snapshot> "
	"<filesystem\|volume\|snapshot>\n"
	"\trename -p [-f] <filesystem\|volume> <filesystem\|volume>\n"
	"\trename -u [-f] <filesystem> <filesystem>\n"
	"\trename -r <snapshot> <snapshot>\n"));
	case HELP_ROLLBACK:
	return (gettext("\trollback [-rRf] <snapshot>\n"));
	case HELP_SEND:
	return (gettext("\tsend [-DnPpRvLecwhb] [-[i\|I] snapshot] "
	"<snapshot>\n"
	"\tsend [-nvPLecw] [-i snapshot\|bookmark] "
	"<filesystem\|volume\|snapshot>\n"
	"\tsend [-DnPpvLec] [-i bookmark\|snapshot] "
	"--redact <bookmark> <snapshot>\n"
	"\tsend [-nvPe] -t <receive_resume_token>\n"
	"\tsend [-Pnv] --saved filesystem\n"));
	case HELP_SET:
	return (gettext("\tset <property=value> ... "
	"<filesystem\|volume\|snapshot> ...\n"));
	case HELP_SHARE:
	return (gettext("\tshare [-l] <-a [nfs\|smb] \| filesystem>\n"));
	case HELP_SNAPSHOT:
	return (gettext("\tsnapshot [-r] [-o property=value] ... "
	"<filesystem\|volume>@<snap> ...\n"));
	case HELP_UNMOUNT:
	return (gettext("\tunmount [-fu] "
	"<-a \| filesystem\|mountpoint>\n"));
	case HELP_UNSHARE:
	return (gettext("\tunshare "
	"<-a [nfs\|smb] \| filesystem\|mountpoint>\n"));
	case HELP_ALLOW:
	return (gettext("\tallow <filesystem\|volume>\n"
	"\tallow [-ldug] "
	"<\"everyone\"\|user\|group>[,...] <perm\|@setname>[,...]\n"
	"\t <filesystem\|volume>\n"
	"\tallow [-ld] -e <perm\|@setname>[,...] "
	"<filesystem\|volume>\n"
	"\tallow -c <perm\|@setname>[,...] <filesystem\|volume>\n"
	"\tallow -s @setname <perm\|@setname>[,...] "
	"<filesystem\|volume>\n"));
	case HELP_UNALLOW:
	return (gettext("\tunallow [-rldug] "
	"<\"everyone\"\|user\|group>[,...]\n"
	"\t [<perm\|@setname>[,...]] <filesystem\|volume>\n"
	"\tunallow [-rld] -e [<perm\|@setname>[,...]] "
	"<filesystem\|volume>\n"
	"\tunallow [-r] -c [<perm\|@setname>[,...]] "
	"<filesystem\|volume>\n"
	"\tunallow [-r] -s @setname [<perm\|@setname>[,...]] "
	"<filesystem\|volume>\n"));
	case HELP_USERSPACE:
	return (gettext("\tuserspace [-Hinp] [-o field[,...]] "
	"[-s field] ...\n"
	"\t [-S field] ... [-t type[,...]] "
	"<filesystem\|snapshot\|path>\n"));
	case HELP_GROUPSPACE:
	return (gettext("\tgroupspace [-Hinp] [-o field[,...]] "
	"[-s field] ...\n"
	"\t [-S field] ... [-t type[,...]] "
	"<filesystem\|snapshot\|path>\n"));
	case HELP_PROJECTSPACE:
	return (gettext("\tprojectspace [-Hp] [-o field[,...]] "
	"[-s field] ... \n"
	"\t [-S field] ... <filesystem\|snapshot\|path>\n"));
	case HELP_PROJECT:
	return (gettext("\tproject [-d\|-r] <directory\|file ...>\n"
	"\tproject -c [-0] [-d\|-r] [-p id] <directory\|file ...>\n"
	"\tproject -C [-k] [-r] <directory ...>\n"
	"\tproject [-p id] [-r] [-s] <directory ...>\n"));
	case HELP_HOLD:
	return (gettext("\thold [-r] <tag> <snapshot> ...\n"));
	case HELP_HOLDS:
	return (gettext("\tholds [-rH] <snapshot> ...\n"));
	case HELP_RELEASE:
	return (gettext("\trelease [-r] <tag> <snapshot> ...\n"));
	case HELP_DIFF:
	return (gettext("\tdiff [-FHt] <snapshot> "
	"[snapshot\|filesystem]\n"));
	case HELP_BOOKMARK:
	return (gettext("\tbookmark <snapshot\|bookmark> "
	"<newbookmark>\n"));
	case HELP_CHANNEL_PROGRAM:
	return (gettext("\tprogram [-jn] [-t <instruction limit>] "
	"[-m <memory limit (b)>]\n"
	"\t <pool> <program file> [lua args...]\n"));
	case HELP_LOAD_KEY:
	return (gettext("\tload-key [-rn] [-L <keylocation>] "
	"<-a \| filesystem\|volume>\n"));
	case HELP_UNLOAD_KEY:
	return (gettext("\tunload-key [-r] "
	"<-a \| filesystem\|volume>\n"));
	case HELP_CHANGE_KEY:
	return (gettext("\tchange-key [-l] [-o keyformat=<value>]\n"
	"\t [-o keylocation=<value>] [-o pbkdf2iters=<value>]\n"
	"\t <filesystem\|volume>\n"
	"\tchange-key -i [-l] <filesystem\|volume>\n"));
	case HELP_VERSION:
	return (gettext("\tversion\n"));
	case HELP_REDACT:
	return (gettext("\tredact <snapshot> <bookmark> "
	"<redaction_snapshot> ...\n"));
	case HELP_JAIL:
	return (gettext("\tjail <jailid\|jailname> <filesystem>\n"));
	case HELP_UNJAIL:
	return (gettext("\tunjail <jailid\|jailname> <filesystem>\n"));
	case HELP_WAIT:
	return (gettext("\twait [-t <activity>] <filesystem>\n"));
	}

	abort();
	/* NOTREACHED */
	}

	void
	nomem(void)
	{
	(void) fprintf(stderr, gettext("internal error: out of memory\n"));
	exit(1);
	}

	/*
	* Utility function to guarantee malloc() success.
	*/

	void *
	safe_malloc(size_t size)
	{
	void *data;

	if ((data = calloc(1, size)) == NULL)
	nomem();

	return (data);
	}

	static void *
	safe_realloc(void *data, size_t size)
	{
	void *newp;
	if ((newp = realloc(data, size)) == NULL) {
	free(data);
	nomem();
	}

	return (newp);
	}

	static char *
	safe_strdup(char *str)
	{
	char *dupstr = strdup(str);

	if (dupstr == NULL)
	nomem();

	return (dupstr);
	}

	/*
	* Callback routine that will print out information for each of
	* the properties.
	*/
	static int
	usage_prop_cb(int prop, void *cb)
	{
	FILE *fp = cb;

	(void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop));

	if (zfs_prop_readonly(prop))
	(void) fprintf(fp, " NO ");
	else
	(void) fprintf(fp, "YES ");

	if (zfs_prop_inheritable(prop))
	(void) fprintf(fp, " YES ");
	else
	(void) fprintf(fp, " NO ");

	if (zfs_prop_values(prop) == NULL)
	(void) fprintf(fp, "-\n");
	else
	(void) fprintf(fp, "%s\n", zfs_prop_values(prop));

	return (ZPROP_CONT);
	}

	/*
	* Display usage message. If we're inside a command, display only the usage for
	* that command. Otherwise, iterate over the entire command table and display
	* a complete usage message.
	*/
	static void
	usage(boolean_t requested)
	{
	int i;
	boolean_t show_properties = B_FALSE;
	FILE *fp = requested ? stdout : stderr;

	if (current_command == NULL) {

	(void) fprintf(fp, gettext("usage: zfs command args ...\n"));
	(void) fprintf(fp,
	gettext("where 'command' is one of the following:\n\n"));

	for (i = 0; i < NCOMMAND; i++) {
	if (command_table[i].name == NULL)
	(void) fprintf(fp, "\n");
	else
	(void) fprintf(fp, "%s",
	get_usage(command_table[i].usage));
	}

	(void) fprintf(fp, gettext("\nEach dataset is of the form: "
	"pool/[dataset/]*dataset[@name]\n"));
	} else {
	(void) fprintf(fp, gettext("usage:\n"));
	(void) fprintf(fp, "%s", get_usage(current_command->usage));
	}

	if (current_command != NULL &&
	(strcmp(current_command->name, "set") == 0 \|\|
	strcmp(current_command->name, "get") == 0 \|\|
	strcmp(current_command->name, "inherit") == 0 \|\|
	strcmp(current_command->name, "list") == 0))
	show_properties = B_TRUE;

	if (show_properties) {
	(void) fprintf(fp,
	gettext("\nThe following properties are supported:\n"));

	(void) fprintf(fp, "\n\t%-14s %s %s %s\n\n",
	"PROPERTY", "EDIT", "INHERIT", "VALUES");

	/* Iterate over all properties */
	(void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE,
	ZFS_TYPE_DATASET);

	(void) fprintf(fp, "\t%-15s ", "userused@...");
	(void) fprintf(fp, " NO NO <size>\n");
	(void) fprintf(fp, "\t%-15s ", "groupused@...");
	(void) fprintf(fp, " NO NO <size>\n");
	(void) fprintf(fp, "\t%-15s ", "projectused@...");
	(void) fprintf(fp, " NO NO <size>\n");
	(void) fprintf(fp, "\t%-15s ", "userobjused@...");
	(void) fprintf(fp, " NO NO <size>\n");
	(void) fprintf(fp, "\t%-15s ", "groupobjused@...");
	(void) fprintf(fp, " NO NO <size>\n");
	(void) fprintf(fp, "\t%-15s ", "projectobjused@...");
	(void) fprintf(fp, " NO NO <size>\n");
	(void) fprintf(fp, "\t%-15s ", "userquota@...");
	(void) fprintf(fp, "YES NO <size> \| none\n");
	(void) fprintf(fp, "\t%-15s ", "groupquota@...");
	(void) fprintf(fp, "YES NO <size> \| none\n");
	(void) fprintf(fp, "\t%-15s ", "projectquota@...");
	(void) fprintf(fp, "YES NO <size> \| none\n");
	(void) fprintf(fp, "\t%-15s ", "userobjquota@...");
	(void) fprintf(fp, "YES NO <size> \| none\n");
	(void) fprintf(fp, "\t%-15s ", "groupobjquota@...");
	(void) fprintf(fp, "YES NO <size> \| none\n");
	(void) fprintf(fp, "\t%-15s ", "projectobjquota@...");
	(void) fprintf(fp, "YES NO <size> \| none\n");
	(void) fprintf(fp, "\t%-15s ", "written@<snap>");
	(void) fprintf(fp, " NO NO <size>\n");
	(void) fprintf(fp, "\t%-15s ", "written#<bookmark>");
	(void) fprintf(fp, " NO NO <size>\n");

	(void) fprintf(fp, gettext("\nSizes are specified in bytes "
	"with standard units such as K, M, G, etc.\n"));
	(void) fprintf(fp, gettext("\nUser-defined properties can "
	"be specified by using a name containing a colon (:).\n"));
	(void) fprintf(fp, gettext("\nThe {user\|group\|project}"
	"[obj]{used\|quota}@ properties must be appended with\n"
	"a user\|group\|project specifier of one of these forms:\n"
	" POSIX name (eg: \"matt\")\n"
	" POSIX id (eg: \"126829\")\n"
	" SMB name@domain (eg: \"matt@sun\")\n"
	" SMB SID (eg: \"S-1-234-567-89\")\n"));
	} else {
	(void) fprintf(fp,
	gettext("\nFor the property list, run: %s\n"),
	"zfs set\|get");
	(void) fprintf(fp,
	gettext("\nFor the delegated permission list, run: %s\n"),
	"zfs allow\|unallow");
	}

	/*
	* See comments at end of main().
	*/
	if (getenv("ZFS_ABORT") != NULL) {
	(void) printf("dumping core by request\n");
	abort();
	}

	exit(requested ? 0 : 2);
	}

	/*
	* Take a property=value argument string and add it to the given nvlist.
	* Modifies the argument inplace.
	*/
	static boolean_t
	parseprop(nvlist_t props, char propname)
	{
	char *propval;

	if ((propval = strchr(propname, '=')) == NULL) {
	(void) fprintf(stderr, gettext("missing "
	"'=' for property=value argument\n"));
	return (B_FALSE);
	}
	*propval = '\0';
	propval++;
	if (nvlist_exists(props, propname)) {
	(void) fprintf(stderr, gettext("property '%s' "
	"specified multiple times\n"), propname);
	return (B_FALSE);
	}
	if (nvlist_add_string(props, propname, propval) != 0)
	nomem();
	return (B_TRUE);
	}

	/*
	* Take a property name argument and add it to the given nvlist.
	* Modifies the argument inplace.
	*/
	static boolean_t
	parsepropname(nvlist_t props, char propname)
	{
	if (strchr(propname, '=') != NULL) {
	(void) fprintf(stderr, gettext("invalid character "
	"'=' in property argument\n"));
	return (B_FALSE);
	}
	if (nvlist_exists(props, propname)) {
	(void) fprintf(stderr, gettext("property '%s' "
	"specified multiple times\n"), propname);
	return (B_FALSE);
	}
	if (nvlist_add_boolean(props, propname) != 0)
	nomem();
	return (B_TRUE);
	}

	static int
	parse_depth(char opt, int flags)
	{
	char *tmp;
	int depth;

	depth = (int)strtol(opt, &tmp, 0);
	if (*tmp) {
	(void) fprintf(stderr,
	gettext("%s is not an integer\n"), optarg);
	usage(B_FALSE);
	}
	if (depth < 0) {
	(void) fprintf(stderr,
	gettext("Depth can not be negative.\n"));
	usage(B_FALSE);
	}
	*flags \|= (ZFS_ITER_DEPTH_LIMIT\|ZFS_ITER_RECURSE);
	return (depth);
	}

	#define PROGRESS_DELAY 2 /* seconds */

	static char *pt_reverse = "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b";
	static time_t pt_begin;
	static char *pt_header = NULL;
	static boolean_t pt_shown;

	static void
	start_progress_timer(void)
	{
	pt_begin = time(NULL) + PROGRESS_DELAY;
	pt_shown = B_FALSE;
	}

	static void
	set_progress_header(char *header)
	{
	assert(pt_header == NULL);
	pt_header = safe_strdup(header);
	if (pt_shown) {
	(void) printf("%s: ", header);
	(void) fflush(stdout);
	}
	}

	static void
	update_progress(char *update)
	{
	if (!pt_shown && time(NULL) > pt_begin) {
	int len = strlen(update);

	(void) printf("%s: %s%.s", pt_header, update, len, len,
	pt_reverse);
	(void) fflush(stdout);
	pt_shown = B_TRUE;
	} else if (pt_shown) {
	int len = strlen(update);

	(void) printf("%s%.s", update, len, len, pt_reverse);
	(void) fflush(stdout);
	}
	}

	static void
	finish_progress(char *done)
	{
	if (pt_shown) {
	(void) printf("%s\n", done);
	(void) fflush(stdout);
	}
	free(pt_header);
	pt_header = NULL;
	}

	+/* This function checks if the passed fd refers to /dev/null or /dev/zero */
	+#ifdef __linux__
	+static boolean_t
	+is_dev_nullzero(int fd)
	+{
	+ struct stat st;
	+ fstat(fd, &st);
	+ return (major(st.st_rdev) == 1 && (minor(st.st_rdev) == 3 /* null */ \|\|
	+ minor(st.st_rdev) == 5 /* zero */));
	+}
	+#endif
	+
	+static void
	+note_dev_error(int err, int fd)
	+{
	+#ifdef __linux__
	+ if (err == EINVAL && is_dev_nullzero(fd)) {
	+ (void) fprintf(stderr,
	+ gettext("Error: Writing directly to /dev/{null,zero} files"
	+ " on certain kernels is not currently implemented.\n"
	+ "(As a workaround, "
	+ "try \"zfs send [...] \| cat > /dev/null\")\n"));
	+ }
	+#endif
	+}
	+
	static int
	zfs_mount_and_share(libzfs_handle_t hdl, const char dataset, zfs_type_t type)
	{
	zfs_handle_t *zhp = NULL;
	int ret = 0;

	zhp = zfs_open(hdl, dataset, type);
	if (zhp == NULL)
	return (1);

	/*
	* Volumes may neither be mounted or shared. Potentially in the
	* future filesystems detected on these volumes could be mounted.
	*/
	if (zfs_get_type(zhp) == ZFS_TYPE_VOLUME) {
	zfs_close(zhp);
	return (0);
	}

	/*
	* Mount and/or share the new filesystem as appropriate. We provide a
	* verbose error message to let the user know that their filesystem was
	* in fact created, even if we failed to mount or share it.
	*
	* If the user doesn't want the dataset automatically mounted, then
	* skip the mount/share step
	*/
	if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type, B_FALSE) &&
	zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON) {
	if (zfs_mount_delegation_check()) {
	(void) fprintf(stderr, gettext("filesystem "
	"successfully created, but it may only be "
	"mounted by root\n"));
	ret = 1;
	} else if (zfs_mount(zhp, NULL, 0) != 0) {
	(void) fprintf(stderr, gettext("filesystem "
	"successfully created, but not mounted\n"));
	ret = 1;
	} else if (zfs_share(zhp) != 0) {
	(void) fprintf(stderr, gettext("filesystem "
	"successfully created, but not shared\n"));
	ret = 1;
	}
	zfs_commit_all_shares();
	}

	zfs_close(zhp);

	return (ret);
	}

	/*
	* zfs clone [-p] [-o prop=value] ... <snap> <fs \| vol>
	*
	* Given an existing dataset, create a writable copy whose initial contents
	* are the same as the source. The newly created dataset maintains a
	* dependency on the original; the original cannot be destroyed so long as
	* the clone exists.
	*
	* The '-p' flag creates all the non-existing ancestors of the target first.
	*/
	static int
	zfs_do_clone(int argc, char **argv)
	{
	zfs_handle_t *zhp = NULL;
	boolean_t parents = B_FALSE;
	nvlist_t *props;
	int ret = 0;
	int c;

	if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
	nomem();

	/* check options */
	while ((c = getopt(argc, argv, "o:p")) != -1) {
	switch (c) {
	case 'o':
	if (!parseprop(props, optarg)) {
	nvlist_free(props);
	return (1);
	}
	break;
	case 'p':
	parents = B_TRUE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	goto usage;
	}
	}

	argc -= optind;
	argv += optind;

	/* check number of arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing source dataset "
	"argument\n"));
	goto usage;
	}
	if (argc < 2) {
	(void) fprintf(stderr, gettext("missing target dataset "
	"argument\n"));
	goto usage;
	}
	if (argc > 2) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	goto usage;
	}

	/* open the source dataset */
	if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) {
	nvlist_free(props);
	return (1);
	}

	if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM \|
	ZFS_TYPE_VOLUME)) {
	/*
	* Now create the ancestors of the target dataset. If the
	* target already exists and '-p' option was used we should not
	* complain.
	*/
	if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM \|
	ZFS_TYPE_VOLUME)) {
	zfs_close(zhp);
	nvlist_free(props);
	return (0);
	}
	if (zfs_create_ancestors(g_zfs, argv[1]) != 0) {
	zfs_close(zhp);
	nvlist_free(props);
	return (1);
	}
	}

	/* pass to libzfs */
	ret = zfs_clone(zhp, argv[1], props);

	/* create the mountpoint if necessary */
	if (ret == 0) {
	if (log_history) {
	(void) zpool_log_history(g_zfs, history_str);
	log_history = B_FALSE;
	}

	ret = zfs_mount_and_share(g_zfs, argv[1], ZFS_TYPE_DATASET);
	}

	zfs_close(zhp);
	nvlist_free(props);

	return (!!ret);

	usage:
	ASSERT3P(zhp, ==, NULL);
	nvlist_free(props);
	usage(B_FALSE);
	return (-1);
	}

	/*
	* Return a default volblocksize for the pool which always uses more than
	* half of the data sectors. This primarily applies to dRAID which always
	* writes full stripe widths.
	*/
	static uint64_t
	default_volblocksize(zpool_handle_t zhp, nvlist_t props)
	{
	uint64_t volblocksize, asize = SPA_MINBLOCKSIZE;
	nvlist_t tree, *vdevs;
	uint_t nvdevs;

	nvlist_t *config = zpool_get_config(zhp, NULL);

	if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &tree) != 0 \|\|
	nvlist_lookup_nvlist_array(tree, ZPOOL_CONFIG_CHILDREN,
	&vdevs, &nvdevs) != 0) {
	return (ZVOL_DEFAULT_BLOCKSIZE);
	}

	for (int i = 0; i < nvdevs; i++) {
	nvlist_t *nv = vdevs[i];
	uint64_t ashift, ndata, nparity;

	if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_ASHIFT, &ashift) != 0)
	continue;

	if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_DRAID_NDATA,
	&ndata) == 0) {
	/* dRAID minimum allocation width */
	asize = MAX(asize, ndata * (1ULL << ashift));
	} else if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NPARITY,
	&nparity) == 0) {
	/* raidz minimum allocation width */
	if (nparity == 1)
	asize = MAX(asize, 2 * (1ULL << ashift));
	else
	asize = MAX(asize, 4 * (1ULL << ashift));
	} else {
	/* mirror or (non-redundant) leaf vdev */
	asize = MAX(asize, 1ULL << ashift);
	}
	}

	/*
	* Calculate the target volblocksize such that more than half
	* of the asize is used. The following table is for 4k sectors.
	*
	* n asize blksz used \| n asize blksz used
	* -------------------------+---------------------------------
	* 1 4,096 8,192 100% \| 9 36,864 32,768 88%
	* 2 8,192 8,192 100% \| 10 40,960 32,768 80%
	* 3 12,288 8,192 66% \| 11 45,056 32,768 72%
	* 4 16,384 16,384 100% \| 12 49,152 32,768 66%
	* 5 20,480 16,384 80% \| 13 53,248 32,768 61%
	* 6 24,576 16,384 66% \| 14 57,344 32,768 57%
	* 7 28,672 16,384 57% \| 15 61,440 32,768 53%
	* 8 32,768 32,768 100% \| 16 65,536 65,636 100%
	*
	* This is primarily a concern for dRAID which always allocates
	* a full stripe width. For dRAID the default stripe width is
	* n=8 in which case the volblocksize is set to 32k. Ignoring
	* compression there are no unused sectors. This same reasoning
	* applies to raidz[2,3] so target 4 sectors to minimize waste.
	*/
	uint64_t tgt_volblocksize = ZVOL_DEFAULT_BLOCKSIZE;
	while (tgt_volblocksize * 2 <= asize)
	tgt_volblocksize *= 2;

	const char *prop = zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE);
	if (nvlist_lookup_uint64(props, prop, &volblocksize) == 0) {

	/* Issue a warning when a non-optimal size is requested. */
	if (volblocksize < ZVOL_DEFAULT_BLOCKSIZE) {
	(void) fprintf(stderr, gettext("Warning: "
	"volblocksize (%llu) is less than the default "
	"minimum block size (%llu).\nTo reduce wasted "
	"space a volblocksize of %llu is recommended.\n"),
	(u_longlong_t)volblocksize,
	(u_longlong_t)ZVOL_DEFAULT_BLOCKSIZE,
	(u_longlong_t)tgt_volblocksize);
	} else if (volblocksize < tgt_volblocksize) {
	(void) fprintf(stderr, gettext("Warning: "
	"volblocksize (%llu) is much less than the "
	"minimum allocation\nunit (%llu), which wastes "
	"at least %llu%% of space. To reduce wasted "
	"space,\nuse a larger volblocksize (%llu is "
	"recommended), fewer dRAID data disks\n"
	"per group, or smaller sector size (ashift).\n"),
	(u_longlong_t)volblocksize, (u_longlong_t)asize,
	(u_longlong_t)((100 * (asize - volblocksize)) /
	asize), (u_longlong_t)tgt_volblocksize);
	}
	} else {
	volblocksize = tgt_volblocksize;
	fnvlist_add_uint64(props, prop, volblocksize);
	}

	return (volblocksize);
	}

	/*
	* zfs create [-Pnpv] [-o prop=value] ... fs
	* zfs create [-Pnpsv] [-b blocksize] [-o prop=value] ... -V vol size
	*
	* Create a new dataset. This command can be used to create filesystems
	* and volumes. Snapshot creation is handled by 'zfs snapshot'.
	* For volumes, the user must specify a size to be used.
	*
	* The '-s' flag applies only to volumes, and indicates that we should not try
	* to set the reservation for this volume. By default we set a reservation
	* equal to the size for any volume. For pools with SPA_VERSION >=
	* SPA_VERSION_REFRESERVATION, we set a refreservation instead.
	*
	* The '-p' flag creates all the non-existing ancestors of the target first.
	*
	* The '-n' flag is no-op (dry run) mode. This will perform a user-space sanity
	* check of arguments and properties, but does not check for permissions,
	* available space, etc.
	*
	* The '-u' flag prevents the newly created file system from being mounted.
	*
	* The '-v' flag is for verbose output.
	*
	* The '-P' flag is used for parseable output. It implies '-v'.
	*/
	static int
	zfs_do_create(int argc, char **argv)
	{
	zfs_type_t type = ZFS_TYPE_FILESYSTEM;
	zpool_handle_t *zpool_handle = NULL;
	nvlist_t *real_props = NULL;
	uint64_t volsize = 0;
	int c;
	boolean_t noreserve = B_FALSE;
	boolean_t bflag = B_FALSE;
	boolean_t parents = B_FALSE;
	boolean_t dryrun = B_FALSE;
	boolean_t nomount = B_FALSE;
	boolean_t verbose = B_FALSE;
	boolean_t parseable = B_FALSE;
	int ret = 1;
	nvlist_t *props;
	uint64_t intval;
	char *strval;

	if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
	nomem();

	/* check options */
	while ((c = getopt(argc, argv, ":PV:b:nso:puv")) != -1) {
	switch (c) {
	case 'V':
	type = ZFS_TYPE_VOLUME;
	if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) {
	(void) fprintf(stderr, gettext("bad volume "
	"size '%s': %s\n"), optarg,
	libzfs_error_description(g_zfs));
	goto error;
	}

	if (nvlist_add_uint64(props,
	zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0)
	nomem();
	volsize = intval;
	break;
	case 'P':
	verbose = B_TRUE;
	parseable = B_TRUE;
	break;
	case 'p':
	parents = B_TRUE;
	break;
	case 'b':
	bflag = B_TRUE;
	if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) {
	(void) fprintf(stderr, gettext("bad volume "
	"block size '%s': %s\n"), optarg,
	libzfs_error_description(g_zfs));
	goto error;
	}

	if (nvlist_add_uint64(props,
	zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
	intval) != 0)
	nomem();
	break;
	case 'n':
	dryrun = B_TRUE;
	break;
	case 'o':
	if (!parseprop(props, optarg))
	goto error;
	break;
	case 's':
	noreserve = B_TRUE;
	break;
	case 'u':
	nomount = B_TRUE;
	break;
	case 'v':
	verbose = B_TRUE;
	break;
	case ':':
	(void) fprintf(stderr, gettext("missing size "
	"argument\n"));
	goto badusage;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	goto badusage;
	}
	}

	if ((bflag \|\| noreserve) && type != ZFS_TYPE_VOLUME) {
	(void) fprintf(stderr, gettext("'-s' and '-b' can only be "
	"used when creating a volume\n"));
	goto badusage;
	}
	if (nomount && type != ZFS_TYPE_FILESYSTEM) {
	(void) fprintf(stderr, gettext("'-u' can only be "
	"used when creating a filesystem\n"));
	goto badusage;
	}

	argc -= optind;
	argv += optind;

	/* check number of arguments */
	if (argc == 0) {
	(void) fprintf(stderr, gettext("missing %s argument\n"),
	zfs_type_to_name(type));
	goto badusage;
	}
	if (argc > 1) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	goto badusage;
	}

	if (dryrun \|\| type == ZFS_TYPE_VOLUME) {
	char msg[ZFS_MAX_DATASET_NAME_LEN * 2];
	char *p;

	if ((p = strchr(argv[0], '/')) != NULL)
	*p = '\0';
	zpool_handle = zpool_open(g_zfs, argv[0]);
	if (p != NULL)
	*p = '/';
	if (zpool_handle == NULL)
	goto error;

	(void) snprintf(msg, sizeof (msg),
	dryrun ? gettext("cannot verify '%s'") :
	gettext("cannot create '%s'"), argv[0]);
	if (props && (real_props = zfs_valid_proplist(g_zfs, type,
	props, 0, NULL, zpool_handle, B_TRUE, msg)) == NULL) {
	zpool_close(zpool_handle);
	goto error;
	}
	}

	if (type == ZFS_TYPE_VOLUME) {
	const char *prop = zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE);
	uint64_t volblocksize = default_volblocksize(zpool_handle,
	real_props);

	if (volblocksize != ZVOL_DEFAULT_BLOCKSIZE &&
	nvlist_lookup_string(props, prop, &strval) != 0) {
	if (asprintf(&strval, "%llu",
	(u_longlong_t)volblocksize) == -1)
	nomem();
	nvlist_add_string(props, prop, strval);
	free(strval);
	}

	/*
	* If volsize is not a multiple of volblocksize, round it
	* up to the nearest multiple of the volblocksize.
	*/
	if (volsize % volblocksize) {
	volsize = P2ROUNDUP_TYPED(volsize, volblocksize,
	uint64_t);

	if (nvlist_add_uint64(props,
	zfs_prop_to_name(ZFS_PROP_VOLSIZE), volsize) != 0) {
	nvlist_free(props);
	nomem();
	}
	}
	}

	if (type == ZFS_TYPE_VOLUME && !noreserve) {
	uint64_t spa_version;
	zfs_prop_t resv_prop;

	spa_version = zpool_get_prop_int(zpool_handle,
	ZPOOL_PROP_VERSION, NULL);
	if (spa_version >= SPA_VERSION_REFRESERVATION)
	resv_prop = ZFS_PROP_REFRESERVATION;
	else
	resv_prop = ZFS_PROP_RESERVATION;

	volsize = zvol_volsize_to_reservation(zpool_handle, volsize,
	real_props);

	if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop),
	&strval) != 0) {
	if (nvlist_add_uint64(props,
	zfs_prop_to_name(resv_prop), volsize) != 0) {
	nvlist_free(props);
	nomem();
	}
	}
	}
	if (zpool_handle != NULL) {
	zpool_close(zpool_handle);
	nvlist_free(real_props);
	}

	if (parents && zfs_name_valid(argv[0], type)) {
	/*
	* Now create the ancestors of target dataset. If the target
	* already exists and '-p' option was used we should not
	* complain.
	*/
	if (zfs_dataset_exists(g_zfs, argv[0], type)) {
	ret = 0;
	goto error;
	}
	if (verbose) {
	(void) printf(parseable ? "create_ancestors\t%s\n" :
	dryrun ? "would create ancestors of %s\n" :
	"create ancestors of %s\n", argv[0]);
	}
	if (!dryrun) {
	if (zfs_create_ancestors(g_zfs, argv[0]) != 0) {
	goto error;
	}
	}
	}

	if (verbose) {
	nvpair_t *nvp = NULL;
	(void) printf(parseable ? "create\t%s\n" :
	dryrun ? "would create %s\n" : "create %s\n", argv[0]);
	while ((nvp = nvlist_next_nvpair(props, nvp)) != NULL) {
	uint64_t uval;
	char *sval;

	switch (nvpair_type(nvp)) {
	case DATA_TYPE_UINT64:
	VERIFY0(nvpair_value_uint64(nvp, &uval));
	(void) printf(parseable ?
	"property\t%s\t%llu\n" : "\t%s=%llu\n",
	nvpair_name(nvp), (u_longlong_t)uval);
	break;
	case DATA_TYPE_STRING:
	VERIFY0(nvpair_value_string(nvp, &sval));
	(void) printf(parseable ?
	"property\t%s\t%s\n" : "\t%s=%s\n",
	nvpair_name(nvp), sval);
	break;
	default:
	(void) fprintf(stderr, "property '%s' "
	"has illegal type %d\n",
	nvpair_name(nvp), nvpair_type(nvp));
	abort();
	}
	}
	}
	if (dryrun) {
	ret = 0;
	goto error;
	}

	/* pass to libzfs */
	if (zfs_create(g_zfs, argv[0], type, props) != 0)
	goto error;

	if (log_history) {
	(void) zpool_log_history(g_zfs, history_str);
	log_history = B_FALSE;
	}

	if (nomount) {
	ret = 0;
	goto error;
	}

	ret = zfs_mount_and_share(g_zfs, argv[0], ZFS_TYPE_DATASET);
	error:
	nvlist_free(props);
	return (ret);
	badusage:
	nvlist_free(props);
	usage(B_FALSE);
	return (2);
	}

	/*
	* zfs destroy [-rRf] <fs, vol>
	* zfs destroy [-rRd] <snap>
	*
	* -r Recursively destroy all children
	* -R Recursively destroy all dependents, including clones
	* -f Force unmounting of any dependents
	* -d If we can't destroy now, mark for deferred destruction
	*
	* Destroys the given dataset. By default, it will unmount any filesystems,
	* and refuse to destroy a dataset that has any dependents. A dependent can
	* either be a child, or a clone of a child.
	*/
	typedef struct destroy_cbdata {
	boolean_t cb_first;
	boolean_t cb_force;
	boolean_t cb_recurse;
	boolean_t cb_error;
	boolean_t cb_doclones;
	zfs_handle_t *cb_target;
	boolean_t cb_defer_destroy;
	boolean_t cb_verbose;
	boolean_t cb_parsable;
	boolean_t cb_dryrun;
	nvlist_t *cb_nvl;
	nvlist_t *cb_batchedsnaps;

	/* first snap in contiguous run */
	char *cb_firstsnap;
	/* previous snap in contiguous run */
	char *cb_prevsnap;
	int64_t cb_snapused;
	char *cb_snapspec;
	char *cb_bookmark;
	uint64_t cb_snap_count;
	} destroy_cbdata_t;

	/*
	* Check for any dependents based on the '-r' or '-R' flags.
	*/
	static int
	destroy_check_dependent(zfs_handle_t zhp, void data)
	{
	destroy_cbdata_t *cbp = data;
	const char *tname = zfs_get_name(cbp->cb_target);
	const char *name = zfs_get_name(zhp);

	if (strncmp(tname, name, strlen(tname)) == 0 &&
	(name[strlen(tname)] == '/' \|\| name[strlen(tname)] == '@')) {
	/*
	* This is a direct descendant, not a clone somewhere else in
	* the hierarchy.
	*/
	if (cbp->cb_recurse)
	goto out;

	if (cbp->cb_first) {
	(void) fprintf(stderr, gettext("cannot destroy '%s': "
	"%s has children\n"),
	zfs_get_name(cbp->cb_target),
	zfs_type_to_name(zfs_get_type(cbp->cb_target)));
	(void) fprintf(stderr, gettext("use '-r' to destroy "
	"the following datasets:\n"));
	cbp->cb_first = B_FALSE;
	cbp->cb_error = B_TRUE;
	}

	(void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
	} else {
	/*
	* This is a clone. We only want to report this if the '-r'
	* wasn't specified, or the target is a snapshot.
	*/
	if (!cbp->cb_recurse &&
	zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT)
	goto out;

	if (cbp->cb_first) {
	(void) fprintf(stderr, gettext("cannot destroy '%s': "
	"%s has dependent clones\n"),
	zfs_get_name(cbp->cb_target),
	zfs_type_to_name(zfs_get_type(cbp->cb_target)));
	(void) fprintf(stderr, gettext("use '-R' to destroy "
	"the following datasets:\n"));
	cbp->cb_first = B_FALSE;
	cbp->cb_error = B_TRUE;
	cbp->cb_dryrun = B_TRUE;
	}

	(void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
	}

	out:
	zfs_close(zhp);
	return (0);
	}

	static int
	destroy_batched(destroy_cbdata_t *cb)
	{
	int error = zfs_destroy_snaps_nvl(g_zfs,
	cb->cb_batchedsnaps, B_FALSE);
	fnvlist_free(cb->cb_batchedsnaps);
	cb->cb_batchedsnaps = fnvlist_alloc();
	return (error);
	}

	static int
	destroy_callback(zfs_handle_t zhp, void data)
	{
	destroy_cbdata_t *cb = data;
	const char *name = zfs_get_name(zhp);
	int error;

	if (cb->cb_verbose) {
	if (cb->cb_parsable) {
	(void) printf("destroy\t%s\n", name);
	} else if (cb->cb_dryrun) {
	(void) printf(gettext("would destroy %s\n"),
	name);
	} else {
	(void) printf(gettext("will destroy %s\n"),
	name);
	}
	}

	/*
	* Ignore pools (which we've already flagged as an error before getting
	* here).
	*/
	if (strchr(zfs_get_name(zhp), '/') == NULL &&
	zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
	zfs_close(zhp);
	return (0);
	}
	if (cb->cb_dryrun) {
	zfs_close(zhp);
	return (0);
	}

	/*
	* We batch up all contiguous snapshots (even of different
	* filesystems) and destroy them with one ioctl. We can't
	* simply do all snap deletions and then all fs deletions,
	* because we must delete a clone before its origin.
	*/
	if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) {
	cb->cb_snap_count++;
	fnvlist_add_boolean(cb->cb_batchedsnaps, name);
	if (cb->cb_snap_count % 10 == 0 && cb->cb_defer_destroy)
	error = destroy_batched(cb);
	} else {
	error = destroy_batched(cb);
	if (error != 0 \|\|
	zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 \|\|
	zfs_destroy(zhp, cb->cb_defer_destroy) != 0) {
	zfs_close(zhp);
	/*
	* When performing a recursive destroy we ignore errors
	* so that the recursive destroy could continue
	* destroying past problem datasets
	*/
	if (cb->cb_recurse) {
	cb->cb_error = B_TRUE;
	return (0);
	}
	return (-1);
	}
	}

	zfs_close(zhp);
	return (0);
	}

	static int
	destroy_print_cb(zfs_handle_t zhp, void arg)
	{
	destroy_cbdata_t *cb = arg;
	const char *name = zfs_get_name(zhp);
	int err = 0;

	if (nvlist_exists(cb->cb_nvl, name)) {
	if (cb->cb_firstsnap == NULL)
	cb->cb_firstsnap = strdup(name);
	if (cb->cb_prevsnap != NULL)
	free(cb->cb_prevsnap);
	/* this snap continues the current range */
	cb->cb_prevsnap = strdup(name);
	if (cb->cb_firstsnap == NULL \|\| cb->cb_prevsnap == NULL)
	nomem();
	if (cb->cb_verbose) {
	if (cb->cb_parsable) {
	(void) printf("destroy\t%s\n", name);
	} else if (cb->cb_dryrun) {
	(void) printf(gettext("would destroy %s\n"),
	name);
	} else {
	(void) printf(gettext("will destroy %s\n"),
	name);
	}
	}
	} else if (cb->cb_firstsnap != NULL) {
	/* end of this range */
	uint64_t used = 0;
	err = lzc_snaprange_space(cb->cb_firstsnap,
	cb->cb_prevsnap, &used);
	cb->cb_snapused += used;
	free(cb->cb_firstsnap);
	cb->cb_firstsnap = NULL;
	free(cb->cb_prevsnap);
	cb->cb_prevsnap = NULL;
	}
	zfs_close(zhp);
	return (err);
	}

	static int
	destroy_print_snapshots(zfs_handle_t fs_zhp, destroy_cbdata_t cb)
	{
	int err;
	assert(cb->cb_firstsnap == NULL);
	assert(cb->cb_prevsnap == NULL);
	err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb, 0, 0);
	if (cb->cb_firstsnap != NULL) {
	uint64_t used = 0;
	if (err == 0) {
	err = lzc_snaprange_space(cb->cb_firstsnap,
	cb->cb_prevsnap, &used);
	}
	cb->cb_snapused += used;
	free(cb->cb_firstsnap);
	cb->cb_firstsnap = NULL;
	free(cb->cb_prevsnap);
	cb->cb_prevsnap = NULL;
	}
	return (err);
	}

	static int
	snapshot_to_nvl_cb(zfs_handle_t zhp, void arg)
	{
	destroy_cbdata_t *cb = arg;
	int err = 0;

	/* Check for clones. */
	if (!cb->cb_doclones && !cb->cb_defer_destroy) {
	cb->cb_target = zhp;
	cb->cb_first = B_TRUE;
	err = zfs_iter_dependents(zhp, B_TRUE,
	destroy_check_dependent, cb);
	}

	if (err == 0) {
	if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp)))
	nomem();
	}
	zfs_close(zhp);
	return (err);
	}

	static int
	gather_snapshots(zfs_handle_t zhp, void arg)
	{
	destroy_cbdata_t *cb = arg;
	int err = 0;

	err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb);
	if (err == ENOENT)
	err = 0;
	if (err != 0)
	goto out;

	if (cb->cb_verbose) {
	err = destroy_print_snapshots(zhp, cb);
	if (err != 0)
	goto out;
	}

	if (cb->cb_recurse)
	err = zfs_iter_filesystems(zhp, gather_snapshots, cb);

	out:
	zfs_close(zhp);
	return (err);
	}

	static int
	destroy_clones(destroy_cbdata_t *cb)
	{
	nvpair_t *pair;
	for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL);
	pair != NULL;
	pair = nvlist_next_nvpair(cb->cb_nvl, pair)) {
	zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair),
	ZFS_TYPE_SNAPSHOT);
	if (zhp != NULL) {
	boolean_t defer = cb->cb_defer_destroy;
	int err;

	/*
	* We can't defer destroy non-snapshots, so set it to
	* false while destroying the clones.
	*/
	cb->cb_defer_destroy = B_FALSE;
	err = zfs_iter_dependents(zhp, B_FALSE,
	destroy_callback, cb);
	cb->cb_defer_destroy = defer;
	zfs_close(zhp);
	if (err != 0)
	return (err);
	}
	}
	return (0);
	}

	static int
	zfs_do_destroy(int argc, char **argv)
	{
	destroy_cbdata_t cb = { 0 };
	int rv = 0;
	int err = 0;
	int c;
	zfs_handle_t *zhp = NULL;
	char at, pound;
	zfs_type_t type = ZFS_TYPE_DATASET;

	/* check options */
	while ((c = getopt(argc, argv, "vpndfrR")) != -1) {
	switch (c) {
	case 'v':
	cb.cb_verbose = B_TRUE;
	break;
	case 'p':
	cb.cb_verbose = B_TRUE;
	cb.cb_parsable = B_TRUE;
	break;
	case 'n':
	cb.cb_dryrun = B_TRUE;
	break;
	case 'd':
	cb.cb_defer_destroy = B_TRUE;
	type = ZFS_TYPE_SNAPSHOT;
	break;
	case 'f':
	cb.cb_force = B_TRUE;
	break;
	case 'r':
	cb.cb_recurse = B_TRUE;
	break;
	case 'R':
	cb.cb_recurse = B_TRUE;
	cb.cb_doclones = B_TRUE;
	break;
	case '?':
	default:
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* check number of arguments */
	if (argc == 0) {
	(void) fprintf(stderr, gettext("missing dataset argument\n"));
	usage(B_FALSE);
	}
	if (argc > 1) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	at = strchr(argv[0], '@');
	pound = strchr(argv[0], '#');
	if (at != NULL) {

	/* Build the list of snaps to destroy in cb_nvl. */
	cb.cb_nvl = fnvlist_alloc();

	*at = '\0';
	zhp = zfs_open(g_zfs, argv[0],
	ZFS_TYPE_FILESYSTEM \| ZFS_TYPE_VOLUME);
	if (zhp == NULL) {
	nvlist_free(cb.cb_nvl);
	return (1);
	}

	cb.cb_snapspec = at + 1;
	if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 \|\|
	cb.cb_error) {
	rv = 1;
	goto out;
	}

	if (nvlist_empty(cb.cb_nvl)) {
	(void) fprintf(stderr, gettext("could not find any "
	"snapshots to destroy; check snapshot names.\n"));
	rv = 1;
	goto out;
	}

	if (cb.cb_verbose) {
	char buf[16];
	zfs_nicebytes(cb.cb_snapused, buf, sizeof (buf));
	if (cb.cb_parsable) {
	(void) printf("reclaim\t%llu\n",
	(u_longlong_t)cb.cb_snapused);
	} else if (cb.cb_dryrun) {
	(void) printf(gettext("would reclaim %s\n"),
	buf);
	} else {
	(void) printf(gettext("will reclaim %s\n"),
	buf);
	}
	}

	if (!cb.cb_dryrun) {
	if (cb.cb_doclones) {
	cb.cb_batchedsnaps = fnvlist_alloc();
	err = destroy_clones(&cb);
	if (err == 0) {
	err = zfs_destroy_snaps_nvl(g_zfs,
	cb.cb_batchedsnaps, B_FALSE);
	}
	if (err != 0) {
	rv = 1;
	goto out;
	}
	}
	if (err == 0) {
	err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl,
	cb.cb_defer_destroy);
	}
	}

	if (err != 0)
	rv = 1;
	} else if (pound != NULL) {
	int err;
	nvlist_t *nvl;

	if (cb.cb_dryrun) {
	(void) fprintf(stderr,
	"dryrun is not supported with bookmark\n");
	return (-1);
	}

	if (cb.cb_defer_destroy) {
	(void) fprintf(stderr,
	"defer destroy is not supported with bookmark\n");
	return (-1);
	}

	if (cb.cb_recurse) {
	(void) fprintf(stderr,
	"recursive is not supported with bookmark\n");
	return (-1);
	}

	/*
	* Unfortunately, zfs_bookmark() doesn't honor the
	* casesensitivity setting. However, we can't simply
	* remove this check, because lzc_destroy_bookmarks()
	* ignores non-existent bookmarks, so this is necessary
	* to get a proper error message.
	*/
	if (!zfs_bookmark_exists(argv[0])) {
	(void) fprintf(stderr, gettext("bookmark '%s' "
	"does not exist.\n"), argv[0]);
	return (1);
	}

	nvl = fnvlist_alloc();
	fnvlist_add_boolean(nvl, argv[0]);

	err = lzc_destroy_bookmarks(nvl, NULL);
	if (err != 0) {
	(void) zfs_standard_error(g_zfs, err,
	"cannot destroy bookmark");
	}

	nvlist_free(nvl);

	return (err);
	} else {
	/* Open the given dataset */
	if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL)
	return (1);

	cb.cb_target = zhp;

	/*
	* Perform an explicit check for pools before going any further.
	*/
	if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL &&
	zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
	(void) fprintf(stderr, gettext("cannot destroy '%s': "
	"operation does not apply to pools\n"),
	zfs_get_name(zhp));
	(void) fprintf(stderr, gettext("use 'zfs destroy -r "
	"%s' to destroy all datasets in the pool\n"),
	zfs_get_name(zhp));
	(void) fprintf(stderr, gettext("use 'zpool destroy %s' "
	"to destroy the pool itself\n"), zfs_get_name(zhp));
	rv = 1;
	goto out;
	}

	/*
	* Check for any dependents and/or clones.
	*/
	cb.cb_first = B_TRUE;
	if (!cb.cb_doclones &&
	zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent,
	&cb) != 0) {
	rv = 1;
	goto out;
	}

	if (cb.cb_error) {
	rv = 1;
	goto out;
	}
	cb.cb_batchedsnaps = fnvlist_alloc();
	if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback,
	&cb) != 0) {
	rv = 1;
	goto out;
	}

	/*
	* Do the real thing. The callback will close the
	* handle regardless of whether it succeeds or not.
	*/
	err = destroy_callback(zhp, &cb);
	zhp = NULL;
	if (err == 0) {
	err = zfs_destroy_snaps_nvl(g_zfs,
	cb.cb_batchedsnaps, cb.cb_defer_destroy);
	}
	if (err != 0 \|\| cb.cb_error == B_TRUE)
	rv = 1;
	}

	out:
	fnvlist_free(cb.cb_batchedsnaps);
	fnvlist_free(cb.cb_nvl);
	if (zhp != NULL)
	zfs_close(zhp);
	return (rv);
	}

	static boolean_t
	is_recvd_column(zprop_get_cbdata_t *cbp)
	{
	int i;
	zfs_get_column_t col;

	for (i = 0; i < ZFS_GET_NCOLS &&
	(col = cbp->cb_columns[i]) != GET_COL_NONE; i++)
	if (col == GET_COL_RECVD)
	return (B_TRUE);
	return (B_FALSE);
	}

	/*
	* zfs get [-rHp] [-o all \| field[,field]...] [-s source[,source]...]
	* < all \| property[,property]... > < fs \| snap \| vol > ...
	*
	* -r recurse over any child datasets
	* -H scripted mode. Headers are stripped, and fields are separated
	* by tabs instead of spaces.
	* -o Set of fields to display. One of "name,property,value,
	* received,source". Default is "name,property,value,source".
	* "all" is an alias for all five.
	* -s Set of sources to allow. One of
	* "local,default,inherited,received,temporary,none". Default is
	* all six.
	* -p Display values in parsable (literal) format.
	*
	* Prints properties for the given datasets. The user can control which
	* columns to display as well as which property types to allow.
	*/

	/*
	* Invoked to display the properties for a single dataset.
	*/
	static int
	get_callback(zfs_handle_t zhp, void data)
	{
	char buf[ZFS_MAXPROPLEN];
	char rbuf[ZFS_MAXPROPLEN];
	zprop_source_t sourcetype;
	char source[ZFS_MAX_DATASET_NAME_LEN];
	zprop_get_cbdata_t *cbp = data;
	nvlist_t *user_props = zfs_get_user_props(zhp);
	zprop_list_t *pl = cbp->cb_proplist;
	nvlist_t *propval;
	char *strval;
	char *sourceval;
	boolean_t received = is_recvd_column(cbp);

	for (; pl != NULL; pl = pl->pl_next) {
	char *recvdval = NULL;
	/*
	* Skip the special fake placeholder. This will also skip over
	* the name property when 'all' is specified.
	*/
	if (pl->pl_prop == ZFS_PROP_NAME &&
	pl == cbp->cb_proplist)
	continue;

	if (pl->pl_prop != ZPROP_INVAL) {
	if (zfs_prop_get(zhp, pl->pl_prop, buf,
	sizeof (buf), &sourcetype, source,
	sizeof (source),
	cbp->cb_literal) != 0) {
	if (pl->pl_all)
	continue;
	if (!zfs_prop_valid_for_type(pl->pl_prop,
	ZFS_TYPE_DATASET, B_FALSE)) {
	(void) fprintf(stderr,
	gettext("No such property '%s'\n"),
	zfs_prop_to_name(pl->pl_prop));
	continue;
	}
	sourcetype = ZPROP_SRC_NONE;
	(void) strlcpy(buf, "-", sizeof (buf));
	}

	if (received && (zfs_prop_get_recvd(zhp,
	zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf),
	cbp->cb_literal) == 0))
	recvdval = rbuf;

	zprop_print_one_property(zfs_get_name(zhp), cbp,
	zfs_prop_to_name(pl->pl_prop),
	buf, sourcetype, source, recvdval);
	} else if (zfs_prop_userquota(pl->pl_user_prop)) {
	sourcetype = ZPROP_SRC_LOCAL;

	if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
	buf, sizeof (buf), cbp->cb_literal) != 0) {
	sourcetype = ZPROP_SRC_NONE;
	(void) strlcpy(buf, "-", sizeof (buf));
	}

	zprop_print_one_property(zfs_get_name(zhp), cbp,
	pl->pl_user_prop, buf, sourcetype, source, NULL);
	} else if (zfs_prop_written(pl->pl_user_prop)) {
	sourcetype = ZPROP_SRC_LOCAL;

	if (zfs_prop_get_written(zhp, pl->pl_user_prop,
	buf, sizeof (buf), cbp->cb_literal) != 0) {
	sourcetype = ZPROP_SRC_NONE;
	(void) strlcpy(buf, "-", sizeof (buf));
	}

	zprop_print_one_property(zfs_get_name(zhp), cbp,
	pl->pl_user_prop, buf, sourcetype, source, NULL);
	} else {
	if (nvlist_lookup_nvlist(user_props,
	pl->pl_user_prop, &propval) != 0) {
	if (pl->pl_all)
	continue;
	sourcetype = ZPROP_SRC_NONE;
	strval = "-";
	} else {
	verify(nvlist_lookup_string(propval,
	ZPROP_VALUE, &strval) == 0);
	verify(nvlist_lookup_string(propval,
	ZPROP_SOURCE, &sourceval) == 0);

	if (strcmp(sourceval,
	zfs_get_name(zhp)) == 0) {
	sourcetype = ZPROP_SRC_LOCAL;
	} else if (strcmp(sourceval,
	ZPROP_SOURCE_VAL_RECVD) == 0) {
	sourcetype = ZPROP_SRC_RECEIVED;
	} else {
	sourcetype = ZPROP_SRC_INHERITED;
	(void) strlcpy(source,
	sourceval, sizeof (source));
	}
	}

	if (received && (zfs_prop_get_recvd(zhp,
	pl->pl_user_prop, rbuf, sizeof (rbuf),
	cbp->cb_literal) == 0))
	recvdval = rbuf;

	zprop_print_one_property(zfs_get_name(zhp), cbp,
	pl->pl_user_prop, strval, sourcetype,
	source, recvdval);
	}
	}

	return (0);
	}

	static int
	zfs_do_get(int argc, char **argv)
	{
	zprop_get_cbdata_t cb = { 0 };
	int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
	int types = ZFS_TYPE_DATASET \| ZFS_TYPE_BOOKMARK;
	char value, fields;
	int ret = 0;
	int limit = 0;
	zprop_list_t fake_name = { 0 };

	/*
	* Set up default columns and sources.
	*/
	cb.cb_sources = ZPROP_SRC_ALL;
	cb.cb_columns[0] = GET_COL_NAME;
	cb.cb_columns[1] = GET_COL_PROPERTY;
	cb.cb_columns[2] = GET_COL_VALUE;
	cb.cb_columns[3] = GET_COL_SOURCE;
	cb.cb_type = ZFS_TYPE_DATASET;

	/* check options */
	while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) {
	switch (c) {
	case 'p':
	cb.cb_literal = B_TRUE;
	break;
	case 'd':
	limit = parse_depth(optarg, &flags);
	break;
	case 'r':
	flags \|= ZFS_ITER_RECURSE;
	break;
	case 'H':
	cb.cb_scripted = B_TRUE;
	break;
	case ':':
	(void) fprintf(stderr, gettext("missing argument for "
	"'%c' option\n"), optopt);
	usage(B_FALSE);
	break;
	case 'o':
	/*
	* Process the set of columns to display. We zero out
	* the structure to give us a blank slate.
	*/
	bzero(&cb.cb_columns, sizeof (cb.cb_columns));
	i = 0;
	while (*optarg != '\0') {
	static char *col_subopts[] =
	{ "name", "property", "value", "received",
	"source", "all", NULL };

	if (i == ZFS_GET_NCOLS) {
	(void) fprintf(stderr, gettext("too "
	"many fields given to -o "
	"option\n"));
	usage(B_FALSE);
	}

	switch (getsubopt(&optarg, col_subopts,
	&value)) {
	case 0:
	cb.cb_columns[i++] = GET_COL_NAME;
	break;
	case 1:
	cb.cb_columns[i++] = GET_COL_PROPERTY;
	break;
	case 2:
	cb.cb_columns[i++] = GET_COL_VALUE;
	break;
	case 3:
	cb.cb_columns[i++] = GET_COL_RECVD;
	flags \|= ZFS_ITER_RECVD_PROPS;
	break;
	case 4:
	cb.cb_columns[i++] = GET_COL_SOURCE;
	break;
	case 5:
	if (i > 0) {
	(void) fprintf(stderr,
	gettext("\"all\" conflicts "
	"with specific fields "
	"given to -o option\n"));
	usage(B_FALSE);
	}
	cb.cb_columns[0] = GET_COL_NAME;
	cb.cb_columns[1] = GET_COL_PROPERTY;
	cb.cb_columns[2] = GET_COL_VALUE;
	cb.cb_columns[3] = GET_COL_RECVD;
	cb.cb_columns[4] = GET_COL_SOURCE;
	flags \|= ZFS_ITER_RECVD_PROPS;
	i = ZFS_GET_NCOLS;
	break;
	default:
	(void) fprintf(stderr,
	gettext("invalid column name "
	"'%s'\n"), value);
	usage(B_FALSE);
	}
	}
	break;

	case 's':
	cb.cb_sources = 0;
	while (*optarg != '\0') {
	static char *source_subopts[] = {
	"local", "default", "inherited",
	"received", "temporary", "none",
	NULL };

	switch (getsubopt(&optarg, source_subopts,
	&value)) {
	case 0:
	cb.cb_sources \|= ZPROP_SRC_LOCAL;
	break;
	case 1:
	cb.cb_sources \|= ZPROP_SRC_DEFAULT;
	break;
	case 2:
	cb.cb_sources \|= ZPROP_SRC_INHERITED;
	break;
	case 3:
	cb.cb_sources \|= ZPROP_SRC_RECEIVED;
	break;
	case 4:
	cb.cb_sources \|= ZPROP_SRC_TEMPORARY;
	break;
	case 5:
	cb.cb_sources \|= ZPROP_SRC_NONE;
	break;
	default:
	(void) fprintf(stderr,
	gettext("invalid source "
	"'%s'\n"), value);
	usage(B_FALSE);
	}
	}
	break;

	case 't':
	types = 0;
	flags &= ~ZFS_ITER_PROP_LISTSNAPS;
	while (*optarg != '\0') {
	static char *type_subopts[] = { "filesystem",
	"volume", "snapshot", "snap", "bookmark",
	"all", NULL };

	switch (getsubopt(&optarg, type_subopts,
	&value)) {
	case 0:
	types \|= ZFS_TYPE_FILESYSTEM;
	break;
	case 1:
	types \|= ZFS_TYPE_VOLUME;
	break;
	case 2:
	case 3:
	types \|= ZFS_TYPE_SNAPSHOT;
	break;
	case 4:
	types \|= ZFS_TYPE_BOOKMARK;
	break;
	case 5:
	types = ZFS_TYPE_DATASET \|
	ZFS_TYPE_BOOKMARK;
	break;

	default:
	(void) fprintf(stderr,
	gettext("invalid type '%s'\n"),
	value);
	usage(B_FALSE);
	}
	}
	break;

	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing property "
	"argument\n"));
	usage(B_FALSE);
	}

	fields = argv[0];

	/*
	* Handle users who want to get all snapshots or bookmarks
	* of a dataset (ex. 'zfs get -t snapshot refer <dataset>').
	*/
	if ((types == ZFS_TYPE_SNAPSHOT \|\| types == ZFS_TYPE_BOOKMARK) &&
	argc > 1 && (flags & ZFS_ITER_RECURSE) == 0 && limit == 0) {
	flags \|= (ZFS_ITER_DEPTH_LIMIT \| ZFS_ITER_RECURSE);
	limit = 1;
	}

	if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
	!= 0)
	usage(B_FALSE);

	argc--;
	argv++;

	/*
	* As part of zfs_expand_proplist(), we keep track of the maximum column
	* width for each property. For the 'NAME' (and 'SOURCE') columns, we
	* need to know the maximum name length. However, the user likely did
	* not specify 'name' as one of the properties to fetch, so we need to
	* make sure we always include at least this property for
	* print_get_headers() to work properly.
	*/
	if (cb.cb_proplist != NULL) {
	fake_name.pl_prop = ZFS_PROP_NAME;
	fake_name.pl_width = strlen(gettext("NAME"));
	fake_name.pl_next = cb.cb_proplist;
	cb.cb_proplist = &fake_name;
	}

	cb.cb_first = B_TRUE;

	/* run for each object */
	ret = zfs_for_each(argc, argv, flags, types, NULL,
	&cb.cb_proplist, limit, get_callback, &cb);

	if (cb.cb_proplist == &fake_name)
	zprop_free_list(fake_name.pl_next);
	else
	zprop_free_list(cb.cb_proplist);

	return (ret);
	}

	/*
	* inherit [-rS] <property> <fs\|vol> ...
	*
	* -r Recurse over all children
	* -S Revert to received value, if any
	*
	* For each dataset specified on the command line, inherit the given property
	* from its parent. Inheriting a property at the pool level will cause it to
	* use the default value. The '-r' flag will recurse over all children, and is
	* useful for setting a property on a hierarchy-wide basis, regardless of any
	* local modifications for each dataset.
	*/

	typedef struct inherit_cbdata {
	const char *cb_propname;
	boolean_t cb_received;
	} inherit_cbdata_t;

	static int
	inherit_recurse_cb(zfs_handle_t zhp, void data)
	{
	inherit_cbdata_t *cb = data;
	zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname);

	/*
	* If we're doing it recursively, then ignore properties that
	* are not valid for this type of dataset.
	*/
	if (prop != ZPROP_INVAL &&
	!zfs_prop_valid_for_type(prop, zfs_get_type(zhp), B_FALSE))
	return (0);

	return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
	}

	static int
	inherit_cb(zfs_handle_t zhp, void data)
	{
	inherit_cbdata_t *cb = data;

	return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
	}

	static int
	zfs_do_inherit(int argc, char **argv)
	{
	int c;
	zfs_prop_t prop;
	inherit_cbdata_t cb = { 0 };
	char *propname;
	int ret = 0;
	int flags = 0;
	boolean_t received = B_FALSE;

	/* check options */
	while ((c = getopt(argc, argv, "rS")) != -1) {
	switch (c) {
	case 'r':
	flags \|= ZFS_ITER_RECURSE;
	break;
	case 'S':
	received = B_TRUE;
	break;
	case '?':
	default:
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* check number of arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing property argument\n"));
	usage(B_FALSE);
	}
	if (argc < 2) {
	(void) fprintf(stderr, gettext("missing dataset argument\n"));
	usage(B_FALSE);
	}

	propname = argv[0];
	argc--;
	argv++;

	if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) {
	if (zfs_prop_readonly(prop)) {
	(void) fprintf(stderr, gettext(
	"%s property is read-only\n"),
	propname);
	return (1);
	}
	if (!zfs_prop_inheritable(prop) && !received) {
	(void) fprintf(stderr, gettext("'%s' property cannot "
	"be inherited\n"), propname);
	if (prop == ZFS_PROP_QUOTA \|\|
	prop == ZFS_PROP_RESERVATION \|\|
	prop == ZFS_PROP_REFQUOTA \|\|
	prop == ZFS_PROP_REFRESERVATION) {
	(void) fprintf(stderr, gettext("use 'zfs set "
	"%s=none' to clear\n"), propname);
	(void) fprintf(stderr, gettext("use 'zfs "
	"inherit -S %s' to revert to received "
	"value\n"), propname);
	}
	return (1);
	}
	if (received && (prop == ZFS_PROP_VOLSIZE \|\|
	prop == ZFS_PROP_VERSION)) {
	(void) fprintf(stderr, gettext("'%s' property cannot "
	"be reverted to a received value\n"), propname);
	return (1);
	}
	} else if (!zfs_prop_user(propname)) {
	(void) fprintf(stderr, gettext("invalid property '%s'\n"),
	propname);
	usage(B_FALSE);
	}

	cb.cb_propname = propname;
	cb.cb_received = received;

	if (flags & ZFS_ITER_RECURSE) {
	ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
	NULL, NULL, 0, inherit_recurse_cb, &cb);
	} else {
	ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
	NULL, NULL, 0, inherit_cb, &cb);
	}

	return (ret);
	}

	typedef struct upgrade_cbdata {
	uint64_t cb_numupgraded;
	uint64_t cb_numsamegraded;
	uint64_t cb_numfailed;
	uint64_t cb_version;
	boolean_t cb_newer;
	boolean_t cb_foundone;
	char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN];
	} upgrade_cbdata_t;

	static int
	same_pool(zfs_handle_t zhp, const char name)
	{
	int len1 = strcspn(name, "/@");
	const char *zhname = zfs_get_name(zhp);
	int len2 = strcspn(zhname, "/@");

	if (len1 != len2)
	return (B_FALSE);
	return (strncmp(name, zhname, len1) == 0);
	}

	static int
	upgrade_list_callback(zfs_handle_t zhp, void data)
	{
	upgrade_cbdata_t *cb = data;
	int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);

	/* list if it's old/new */
	if ((!cb->cb_newer && version < ZPL_VERSION) \|\|
	(cb->cb_newer && version > ZPL_VERSION)) {
	char *str;
	if (cb->cb_newer) {
	str = gettext("The following filesystems are "
	"formatted using a newer software version and\n"
	"cannot be accessed on the current system.\n\n");
	} else {
	str = gettext("The following filesystems are "
	"out of date, and can be upgraded. After being\n"
	"upgraded, these filesystems (and any 'zfs send' "
	"streams generated from\n"
	"subsequent snapshots) will no longer be "
	"accessible by older software versions.\n\n");
	}

	if (!cb->cb_foundone) {
	(void) puts(str);
	(void) printf(gettext("VER FILESYSTEM\n"));
	(void) printf(gettext("--- ------------\n"));
	cb->cb_foundone = B_TRUE;
	}

	(void) printf("%2u %s\n", version, zfs_get_name(zhp));
	}

	return (0);
	}

	static int
	upgrade_set_callback(zfs_handle_t zhp, void data)
	{
	upgrade_cbdata_t *cb = data;
	int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
	int needed_spa_version;
	int spa_version;

	if (zfs_spa_version(zhp, &spa_version) < 0)
	return (-1);

	needed_spa_version = zfs_spa_version_map(cb->cb_version);

	if (needed_spa_version < 0)
	return (-1);

	if (spa_version < needed_spa_version) {
	/* can't upgrade */
	(void) printf(gettext("%s: can not be "
	"upgraded; the pool version needs to first "
	"be upgraded\nto version %d\n\n"),
	zfs_get_name(zhp), needed_spa_version);
	cb->cb_numfailed++;
	return (0);
	}

	/* upgrade */
	if (version < cb->cb_version) {
	char verstr[16];
	(void) snprintf(verstr, sizeof (verstr),
	"%llu", (u_longlong_t)cb->cb_version);
	if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) {
	/*
	* If they did "zfs upgrade -a", then we could
	* be doing ioctls to different pools. We need
	* to log this history once to each pool, and bypass
	* the normal history logging that happens in main().
	*/
	(void) zpool_log_history(g_zfs, history_str);
	log_history = B_FALSE;
	}
	if (zfs_prop_set(zhp, "version", verstr) == 0)
	cb->cb_numupgraded++;
	else
	cb->cb_numfailed++;
	(void) strcpy(cb->cb_lastfs, zfs_get_name(zhp));
	} else if (version > cb->cb_version) {
	/* can't downgrade */
	(void) printf(gettext("%s: can not be downgraded; "
	"it is already at version %u\n"),
	zfs_get_name(zhp), version);
	cb->cb_numfailed++;
	} else {
	cb->cb_numsamegraded++;
	}
	return (0);
	}

	/*
	* zfs upgrade
	* zfs upgrade -v
	* zfs upgrade [-r] [-V <version>] <-a \| filesystem>
	*/
	static int
	zfs_do_upgrade(int argc, char **argv)
	{
	boolean_t all = B_FALSE;
	boolean_t showversions = B_FALSE;
	int ret = 0;
	upgrade_cbdata_t cb = { 0 };
	int c;
	int flags = ZFS_ITER_ARGS_CAN_BE_PATHS;

	/* check options */
	while ((c = getopt(argc, argv, "rvV:a")) != -1) {
	switch (c) {
	case 'r':
	flags \|= ZFS_ITER_RECURSE;
	break;
	case 'v':
	showversions = B_TRUE;
	break;
	case 'V':
	if (zfs_prop_string_to_index(ZFS_PROP_VERSION,
	optarg, &cb.cb_version) != 0) {
	(void) fprintf(stderr,
	gettext("invalid version %s\n"), optarg);
	usage(B_FALSE);
	}
	break;
	case 'a':
	all = B_TRUE;
	break;
	case '?':
	default:
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) \| cb.cb_version))
	usage(B_FALSE);
	if (showversions && (flags & ZFS_ITER_RECURSE \|\| all \|\|
	cb.cb_version \|\| argc))
	usage(B_FALSE);
	if ((all \|\| argc) && (showversions))
	usage(B_FALSE);
	if (all && argc)
	usage(B_FALSE);

	if (showversions) {
	/* Show info on available versions. */
	(void) printf(gettext("The following filesystem versions are "
	"supported:\n\n"));
	(void) printf(gettext("VER DESCRIPTION\n"));
	(void) printf("--- -----------------------------------------"
	"---------------\n");
	(void) printf(gettext(" 1 Initial ZFS filesystem version\n"));
	(void) printf(gettext(" 2 Enhanced directory entries\n"));
	(void) printf(gettext(" 3 Case insensitive and filesystem "
	"user identifier (FUID)\n"));
	(void) printf(gettext(" 4 userquota, groupquota "
	"properties\n"));
	(void) printf(gettext(" 5 System attributes\n"));
	(void) printf(gettext("\nFor more information on a particular "
	"version, including supported releases,\n"));
	(void) printf("see the ZFS Administration Guide.\n\n");
	ret = 0;
	} else if (argc \|\| all) {
	/* Upgrade filesystems */
	if (cb.cb_version == 0)
	cb.cb_version = ZPL_VERSION;
	ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM,
	NULL, NULL, 0, upgrade_set_callback, &cb);
	(void) printf(gettext("%llu filesystems upgraded\n"),
	(u_longlong_t)cb.cb_numupgraded);
	if (cb.cb_numsamegraded) {
	(void) printf(gettext("%llu filesystems already at "
	"this version\n"),
	(u_longlong_t)cb.cb_numsamegraded);
	}
	if (cb.cb_numfailed != 0)
	ret = 1;
	} else {
	/* List old-version filesystems */
	boolean_t found;
	(void) printf(gettext("This system is currently running "
	"ZFS filesystem version %llu.\n\n"), ZPL_VERSION);

	flags \|= ZFS_ITER_RECURSE;
	ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
	NULL, NULL, 0, upgrade_list_callback, &cb);

	found = cb.cb_foundone;
	cb.cb_foundone = B_FALSE;
	cb.cb_newer = B_TRUE;

	ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
	NULL, NULL, 0, upgrade_list_callback, &cb);

	if (!cb.cb_foundone && !found) {
	(void) printf(gettext("All filesystems are "
	"formatted with the current version.\n"));
	}
	}

	return (ret);
	}

	/*
	* zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...]
	* [-S field [-S field]...] [-t type[,...]]
	* filesystem \| snapshot \| path
	* zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...]
	* [-S field [-S field]...] [-t type[,...]]
	* filesystem \| snapshot \| path
	* zfs projectspace [-Hp] [-o field[,...]] [-s field [-s field]...]
	* [-S field [-S field]...] filesystem \| snapshot \| path
	*
	* -H Scripted mode; elide headers and separate columns by tabs.
	* -i Translate SID to POSIX ID.
	* -n Print numeric ID instead of user/group name.
	* -o Control which fields to display.
	* -p Use exact (parsable) numeric output.
	* -s Specify sort columns, descending order.
	* -S Specify sort columns, ascending order.
	* -t Control which object types to display.
	*
	* Displays space consumed by, and quotas on, each user in the specified
	* filesystem or snapshot.
	*/

	/* us_field_types, us_field_hdr and us_field_names should be kept in sync */
	enum us_field_types {
	USFIELD_TYPE,
	USFIELD_NAME,
	USFIELD_USED,
	USFIELD_QUOTA,
	USFIELD_OBJUSED,
	USFIELD_OBJQUOTA
	};
	static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA",
	"OBJUSED", "OBJQUOTA" };
	static char *us_field_names[] = { "type", "name", "used", "quota",
	"objused", "objquota" };
	#define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *))

	#define USTYPE_PSX_GRP (1 << 0)
	#define USTYPE_PSX_USR (1 << 1)
	#define USTYPE_SMB_GRP (1 << 2)
	#define USTYPE_SMB_USR (1 << 3)
	#define USTYPE_PROJ (1 << 4)
	#define USTYPE_ALL \
	(USTYPE_PSX_GRP \| USTYPE_PSX_USR \| USTYPE_SMB_GRP \| USTYPE_SMB_USR \| \
	USTYPE_PROJ)

	static int us_type_bits[] = {
	USTYPE_PSX_GRP,
	USTYPE_PSX_USR,
	USTYPE_SMB_GRP,
	USTYPE_SMB_USR,
	USTYPE_ALL
	};
	static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup",
	"smbuser", "all" };

	typedef struct us_node {
	nvlist_t *usn_nvl;
	uu_avl_node_t usn_avlnode;
	uu_list_node_t usn_listnode;
	} us_node_t;

	typedef struct us_cbdata {
	nvlist_t **cb_nvlp;
	uu_avl_pool_t *cb_avl_pool;
	uu_avl_t *cb_avl;
	boolean_t cb_numname;
	boolean_t cb_nicenum;
	boolean_t cb_sid2posix;
	zfs_userquota_prop_t cb_prop;
	zfs_sort_column_t *cb_sortcol;
	size_t cb_width[USFIELD_LAST];
	} us_cbdata_t;

	static boolean_t us_populated = B_FALSE;

	typedef struct {
	zfs_sort_column_t *si_sortcol;
	boolean_t si_numname;
	} us_sort_info_t;

	static int
	us_field_index(char *field)
	{
	int i;

	for (i = 0; i < USFIELD_LAST; i++) {
	if (strcmp(field, us_field_names[i]) == 0)
	return (i);
	}

	return (-1);
	}

	static int
	us_compare(const void larg, const void rarg, void *unused)
	{
	const us_node_t *l = larg;
	const us_node_t *r = rarg;
	us_sort_info_t si = (us_sort_info_t )unused;
	zfs_sort_column_t *sortcol = si->si_sortcol;
	boolean_t numname = si->si_numname;
	nvlist_t *lnvl = l->usn_nvl;
	nvlist_t *rnvl = r->usn_nvl;
	int rc = 0;
	boolean_t lvb, rvb;

	for (; sortcol != NULL; sortcol = sortcol->sc_next) {
	char *lvstr = "";
	char *rvstr = "";
	uint32_t lv32 = 0;
	uint32_t rv32 = 0;
	uint64_t lv64 = 0;
	uint64_t rv64 = 0;
	zfs_prop_t prop = sortcol->sc_prop;
	const char *propname = NULL;
	boolean_t reverse = sortcol->sc_reverse;

	switch (prop) {
	case ZFS_PROP_TYPE:
	propname = "type";
	(void) nvlist_lookup_uint32(lnvl, propname, &lv32);
	(void) nvlist_lookup_uint32(rnvl, propname, &rv32);
	if (rv32 != lv32)
	rc = (rv32 < lv32) ? 1 : -1;
	break;
	case ZFS_PROP_NAME:
	propname = "name";
	if (numname) {
	compare_nums:
	(void) nvlist_lookup_uint64(lnvl, propname,
	&lv64);
	(void) nvlist_lookup_uint64(rnvl, propname,
	&rv64);
	if (rv64 != lv64)
	rc = (rv64 < lv64) ? 1 : -1;
	} else {
	if ((nvlist_lookup_string(lnvl, propname,
	&lvstr) == ENOENT) \|\|
	(nvlist_lookup_string(rnvl, propname,
	&rvstr) == ENOENT)) {
	goto compare_nums;
	}
	rc = strcmp(lvstr, rvstr);
	}
	break;
	case ZFS_PROP_USED:
	case ZFS_PROP_QUOTA:
	if (!us_populated)
	break;
	if (prop == ZFS_PROP_USED)
	propname = "used";
	else
	propname = "quota";
	(void) nvlist_lookup_uint64(lnvl, propname, &lv64);
	(void) nvlist_lookup_uint64(rnvl, propname, &rv64);
	if (rv64 != lv64)
	rc = (rv64 < lv64) ? 1 : -1;
	break;

	default:
	break;
	}

	if (rc != 0) {
	if (rc < 0)
	return (reverse ? 1 : -1);
	else
	return (reverse ? -1 : 1);
	}
	}

	/*
	* If entries still seem to be the same, check if they are of the same
	* type (smbentity is added only if we are doing SID to POSIX ID
	* translation where we can have duplicate type/name combinations).
	*/
	if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 &&
	nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 &&
	lvb != rvb)
	return (lvb < rvb ? -1 : 1);

	return (0);
	}

	static boolean_t
	zfs_prop_is_user(unsigned p)
	{
	return (p == ZFS_PROP_USERUSED \|\| p == ZFS_PROP_USERQUOTA \|\|
	p == ZFS_PROP_USEROBJUSED \|\| p == ZFS_PROP_USEROBJQUOTA);
	}

	static boolean_t
	zfs_prop_is_group(unsigned p)
	{
	return (p == ZFS_PROP_GROUPUSED \|\| p == ZFS_PROP_GROUPQUOTA \|\|
	p == ZFS_PROP_GROUPOBJUSED \|\| p == ZFS_PROP_GROUPOBJQUOTA);
	}

	static boolean_t
	zfs_prop_is_project(unsigned p)
	{
	return (p == ZFS_PROP_PROJECTUSED \|\| p == ZFS_PROP_PROJECTQUOTA \|\|
	p == ZFS_PROP_PROJECTOBJUSED \|\| p == ZFS_PROP_PROJECTOBJQUOTA);
	}

	static inline const char *
	us_type2str(unsigned field_type)
	{
	switch (field_type) {
	case USTYPE_PSX_USR:
	return ("POSIX User");
	case USTYPE_PSX_GRP:
	return ("POSIX Group");
	case USTYPE_SMB_USR:
	return ("SMB User");
	case USTYPE_SMB_GRP:
	return ("SMB Group");
	case USTYPE_PROJ:
	return ("Project");
	default:
	return ("Undefined");
	}
	}

	static int
	userspace_cb(void arg, const char domain, uid_t rid, uint64_t space)
	{
	us_cbdata_t cb = (us_cbdata_t )arg;
	zfs_userquota_prop_t prop = cb->cb_prop;
	char *name = NULL;
	char *propname;
	char sizebuf[32];
	us_node_t *node;
	uu_avl_pool_t *avl_pool = cb->cb_avl_pool;
	uu_avl_t *avl = cb->cb_avl;
	uu_avl_index_t idx;
	nvlist_t *props;
	us_node_t *n;
	zfs_sort_column_t *sortcol = cb->cb_sortcol;
	unsigned type = 0;
	const char *typestr;
	size_t namelen;
	size_t typelen;
	size_t sizelen;
	int typeidx, nameidx, sizeidx;
	us_sort_info_t sortinfo = { sortcol, cb->cb_numname };
	boolean_t smbentity = B_FALSE;

	if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
	nomem();
	node = safe_malloc(sizeof (us_node_t));
	uu_avl_node_init(node, &node->usn_avlnode, avl_pool);
	node->usn_nvl = props;

	if (domain != NULL && domain[0] != '\0') {
	#ifdef HAVE_IDMAP
	/* SMB */
	char sid[MAXNAMELEN + 32];
	uid_t id;
	uint64_t classes;
	int err;
	directory_error_t e;

	smbentity = B_TRUE;

	(void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid);

	if (prop == ZFS_PROP_GROUPUSED \|\| prop == ZFS_PROP_GROUPQUOTA) {
	type = USTYPE_SMB_GRP;
	err = sid_to_id(sid, B_FALSE, &id);
	} else {
	type = USTYPE_SMB_USR;
	err = sid_to_id(sid, B_TRUE, &id);
	}

	if (err == 0) {
	rid = id;
	if (!cb->cb_sid2posix) {
	e = directory_name_from_sid(NULL, sid, &name,
	&classes);
	if (e != NULL)
	directory_error_free(e);
	if (name == NULL)
	name = sid;
	}
	}
	#else
	nvlist_free(props);
	free(node);

	return (-1);
	#endif /* HAVE_IDMAP */
	}

	if (cb->cb_sid2posix \|\| domain == NULL \|\| domain[0] == '\0') {
	/* POSIX or -i */
	if (zfs_prop_is_group(prop)) {
	type = USTYPE_PSX_GRP;
	if (!cb->cb_numname) {
	struct group *g;

	if ((g = getgrgid(rid)) != NULL)
	name = g->gr_name;
	}
	} else if (zfs_prop_is_user(prop)) {
	type = USTYPE_PSX_USR;
	if (!cb->cb_numname) {
	struct passwd *p;

	if ((p = getpwuid(rid)) != NULL)
	name = p->pw_name;
	}
	} else {
	type = USTYPE_PROJ;
	}
	}

	/*
	* Make sure that the type/name combination is unique when doing
	* SID to POSIX ID translation (hence changing the type from SMB to
	* POSIX).
	*/
	if (cb->cb_sid2posix &&
	nvlist_add_boolean_value(props, "smbentity", smbentity) != 0)
	nomem();

	/* Calculate/update width of TYPE field */
	typestr = us_type2str(type);
	typelen = strlen(gettext(typestr));
	typeidx = us_field_index("type");
	if (typelen > cb->cb_width[typeidx])
	cb->cb_width[typeidx] = typelen;
	if (nvlist_add_uint32(props, "type", type) != 0)
	nomem();

	/* Calculate/update width of NAME field */
	if ((cb->cb_numname && cb->cb_sid2posix) \|\| name == NULL) {
	if (nvlist_add_uint64(props, "name", rid) != 0)
	nomem();
	namelen = snprintf(NULL, 0, "%u", rid);
	} else {
	if (nvlist_add_string(props, "name", name) != 0)
	nomem();
	namelen = strlen(name);
	}
	nameidx = us_field_index("name");
	if (nameidx >= 0 && namelen > cb->cb_width[nameidx])
	cb->cb_width[nameidx] = namelen;

	/*
	* Check if this type/name combination is in the list and update it;
	* otherwise add new node to the list.
	*/
	if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) {
	uu_avl_insert(avl, node, idx);
	} else {
	nvlist_free(props);
	free(node);
	node = n;
	props = node->usn_nvl;
	}

	/* Calculate/update width of USED/QUOTA fields */
	if (cb->cb_nicenum) {
	if (prop == ZFS_PROP_USERUSED \|\| prop == ZFS_PROP_GROUPUSED \|\|
	prop == ZFS_PROP_USERQUOTA \|\| prop == ZFS_PROP_GROUPQUOTA \|\|
	prop == ZFS_PROP_PROJECTUSED \|\|
	prop == ZFS_PROP_PROJECTQUOTA) {
	zfs_nicebytes(space, sizebuf, sizeof (sizebuf));
	} else {
	zfs_nicenum(space, sizebuf, sizeof (sizebuf));
	}
	} else {
	(void) snprintf(sizebuf, sizeof (sizebuf), "%llu",
	(u_longlong_t)space);
	}
	sizelen = strlen(sizebuf);
	if (prop == ZFS_PROP_USERUSED \|\| prop == ZFS_PROP_GROUPUSED \|\|
	prop == ZFS_PROP_PROJECTUSED) {
	propname = "used";
	if (!nvlist_exists(props, "quota"))
	(void) nvlist_add_uint64(props, "quota", 0);
	} else if (prop == ZFS_PROP_USERQUOTA \|\| prop == ZFS_PROP_GROUPQUOTA \|\|
	prop == ZFS_PROP_PROJECTQUOTA) {
	propname = "quota";
	if (!nvlist_exists(props, "used"))
	(void) nvlist_add_uint64(props, "used", 0);
	} else if (prop == ZFS_PROP_USEROBJUSED \|\|
	prop == ZFS_PROP_GROUPOBJUSED \|\| prop == ZFS_PROP_PROJECTOBJUSED) {
	propname = "objused";
	if (!nvlist_exists(props, "objquota"))
	(void) nvlist_add_uint64(props, "objquota", 0);
	} else if (prop == ZFS_PROP_USEROBJQUOTA \|\|
	prop == ZFS_PROP_GROUPOBJQUOTA \|\|
	prop == ZFS_PROP_PROJECTOBJQUOTA) {
	propname = "objquota";
	if (!nvlist_exists(props, "objused"))
	(void) nvlist_add_uint64(props, "objused", 0);
	} else {
	return (-1);
	}
	sizeidx = us_field_index(propname);
	if (sizeidx >= 0 && sizelen > cb->cb_width[sizeidx])
	cb->cb_width[sizeidx] = sizelen;

	if (nvlist_add_uint64(props, propname, space) != 0)
	nomem();

	return (0);
	}

	static void
	print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types,
	size_t width, us_node_t node)
	{
	nvlist_t *nvl = node->usn_nvl;
	char valstr[MAXNAMELEN];
	boolean_t first = B_TRUE;
	int cfield = 0;
	int field;
	uint32_t ustype;

	/* Check type */
	(void) nvlist_lookup_uint32(nvl, "type", &ustype);
	if (!(ustype & types))
	return;

	while ((field = fields[cfield]) != USFIELD_LAST) {
	nvpair_t *nvp = NULL;
	data_type_t type;
	uint32_t val32;
	uint64_t val64;
	char *strval = "-";

	while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
	if (strcmp(nvpair_name(nvp),
	us_field_names[field]) == 0)
	break;
	}

	type = nvp == NULL ? DATA_TYPE_UNKNOWN : nvpair_type(nvp);
	switch (type) {
	case DATA_TYPE_UINT32:
	(void) nvpair_value_uint32(nvp, &val32);
	break;
	case DATA_TYPE_UINT64:
	(void) nvpair_value_uint64(nvp, &val64);
	break;
	case DATA_TYPE_STRING:
	(void) nvpair_value_string(nvp, &strval);
	break;
	case DATA_TYPE_UNKNOWN:
	break;
	default:
	(void) fprintf(stderr, "invalid data type\n");
	}

	switch (field) {
	case USFIELD_TYPE:
	if (type == DATA_TYPE_UINT32)
	strval = (char *)us_type2str(val32);
	break;
	case USFIELD_NAME:
	if (type == DATA_TYPE_UINT64) {
	(void) sprintf(valstr, "%llu",
	(u_longlong_t)val64);
	strval = valstr;
	}
	break;
	case USFIELD_USED:
	case USFIELD_QUOTA:
	if (type == DATA_TYPE_UINT64) {
	if (parsable) {
	(void) sprintf(valstr, "%llu",
	(u_longlong_t)val64);
	strval = valstr;
	} else if (field == USFIELD_QUOTA &&
	val64 == 0) {
	strval = "none";
	} else {
	zfs_nicebytes(val64, valstr,
	sizeof (valstr));
	strval = valstr;
	}
	}
	break;
	case USFIELD_OBJUSED:
	case USFIELD_OBJQUOTA:
	if (type == DATA_TYPE_UINT64) {
	if (parsable) {
	(void) sprintf(valstr, "%llu",
	(u_longlong_t)val64);
	strval = valstr;
	} else if (field == USFIELD_OBJQUOTA &&
	val64 == 0) {
	strval = "none";
	} else {
	zfs_nicenum(val64, valstr,
	sizeof (valstr));
	strval = valstr;
	}
	}
	break;
	}

	if (!first) {
	if (scripted)
	(void) printf("\t");
	else
	(void) printf(" ");
	}
	if (scripted)
	(void) printf("%s", strval);
	else if (field == USFIELD_TYPE \|\| field == USFIELD_NAME)
	(void) printf("%-*s", (int)width[field], strval);
	else
	(void) printf("%*s", (int)width[field], strval);

	first = B_FALSE;
	cfield++;
	}

	(void) printf("\n");
	}

	static void
	print_us(boolean_t scripted, boolean_t parsable, int *fields, int types,
	size_t width, boolean_t rmnode, uu_avl_t avl)
	{
	us_node_t *node;
	const char *col;
	int cfield = 0;
	int field;

	if (!scripted) {
	boolean_t first = B_TRUE;

	while ((field = fields[cfield]) != USFIELD_LAST) {
	col = gettext(us_field_hdr[field]);
	if (field == USFIELD_TYPE \|\| field == USFIELD_NAME) {
	(void) printf(first ? "%-s" : " %-s",
	(int)width[field], col);
	} else {
	(void) printf(first ? "%s" : " %s",
	(int)width[field], col);
	}
	first = B_FALSE;
	cfield++;
	}
	(void) printf("\n");
	}

	for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) {
	print_us_node(scripted, parsable, fields, types, width, node);
	if (rmnode)
	nvlist_free(node->usn_nvl);
	}
	}

	static int
	zfs_do_userspace(int argc, char **argv)
	{
	zfs_handle_t *zhp;
	zfs_userquota_prop_t p;
	uu_avl_pool_t *avl_pool;
	uu_avl_t *avl_tree;
	uu_avl_walk_t *walk;
	char *delim;
	char deffields[] = "type,name,used,quota,objused,objquota";
	char *ofield = NULL;
	char *tfield = NULL;
	int cfield = 0;
	int fields[256];
	int i;
	boolean_t scripted = B_FALSE;
	boolean_t prtnum = B_FALSE;
	boolean_t parsable = B_FALSE;
	boolean_t sid2posix = B_FALSE;
	int ret = 0;
	int c;
	zfs_sort_column_t *sortcol = NULL;
	int types = USTYPE_PSX_USR \| USTYPE_SMB_USR;
	us_cbdata_t cb;
	us_node_t *node;
	us_node_t *rmnode;
	uu_list_pool_t *listpool;
	uu_list_t *list;
	uu_avl_index_t idx = 0;
	uu_list_index_t idx2 = 0;

	if (argc < 2)
	usage(B_FALSE);

	if (strcmp(argv[0], "groupspace") == 0) {
	/* Toggle default group types */
	types = USTYPE_PSX_GRP \| USTYPE_SMB_GRP;
	} else if (strcmp(argv[0], "projectspace") == 0) {
	types = USTYPE_PROJ;
	prtnum = B_TRUE;
	}

	while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) {
	switch (c) {
	case 'n':
	if (types == USTYPE_PROJ) {
	(void) fprintf(stderr,
	gettext("invalid option 'n'\n"));
	usage(B_FALSE);
	}
	prtnum = B_TRUE;
	break;
	case 'H':
	scripted = B_TRUE;
	break;
	case 'p':
	parsable = B_TRUE;
	break;
	case 'o':
	ofield = optarg;
	break;
	case 's':
	case 'S':
	if (zfs_add_sort_column(&sortcol, optarg,
	c == 's' ? B_FALSE : B_TRUE) != 0) {
	(void) fprintf(stderr,
	gettext("invalid field '%s'\n"), optarg);
	usage(B_FALSE);
	}
	break;
	case 't':
	if (types == USTYPE_PROJ) {
	(void) fprintf(stderr,
	gettext("invalid option 't'\n"));
	usage(B_FALSE);
	}
	tfield = optarg;
	break;
	case 'i':
	if (types == USTYPE_PROJ) {
	(void) fprintf(stderr,
	gettext("invalid option 'i'\n"));
	usage(B_FALSE);
	}
	sid2posix = B_TRUE;
	break;
	case ':':
	(void) fprintf(stderr, gettext("missing argument for "
	"'%c' option\n"), optopt);
	usage(B_FALSE);
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing dataset name\n"));
	usage(B_FALSE);
	}
	if (argc > 1) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	/* Use default output fields if not specified using -o */
	if (ofield == NULL)
	ofield = deffields;
	do {
	if ((delim = strchr(ofield, ',')) != NULL)
	*delim = '\0';
	if ((fields[cfield++] = us_field_index(ofield)) == -1) {
	(void) fprintf(stderr, gettext("invalid type '%s' "
	"for -o option\n"), ofield);
	return (-1);
	}
	if (delim != NULL)
	ofield = delim + 1;
	} while (delim != NULL);
	fields[cfield] = USFIELD_LAST;

	/* Override output types (-t option) */
	if (tfield != NULL) {
	types = 0;

	do {
	boolean_t found = B_FALSE;

	if ((delim = strchr(tfield, ',')) != NULL)
	*delim = '\0';
	for (i = 0; i < sizeof (us_type_bits) / sizeof (int);
	i++) {
	if (strcmp(tfield, us_type_names[i]) == 0) {
	found = B_TRUE;
	types \|= us_type_bits[i];
	break;
	}
	}
	if (!found) {
	(void) fprintf(stderr, gettext("invalid type "
	"'%s' for -t option\n"), tfield);
	return (-1);
	}
	if (delim != NULL)
	tfield = delim + 1;
	} while (delim != NULL);
	}

	if ((zhp = zfs_path_to_zhandle(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM \|
	ZFS_TYPE_SNAPSHOT)) == NULL)
	return (1);
	if (zfs_get_underlying_type(zhp) != ZFS_TYPE_FILESYSTEM) {
	(void) fprintf(stderr, gettext("operation is only applicable "
	"to filesystems and their snapshots\n"));
	zfs_close(zhp);
	return (1);
	}

	if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t),
	offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL)
	nomem();
	if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL)
	nomem();

	/* Always add default sorting columns */
	(void) zfs_add_sort_column(&sortcol, "type", B_FALSE);
	(void) zfs_add_sort_column(&sortcol, "name", B_FALSE);

	cb.cb_sortcol = sortcol;
	cb.cb_numname = prtnum;
	cb.cb_nicenum = !parsable;
	cb.cb_avl_pool = avl_pool;
	cb.cb_avl = avl_tree;
	cb.cb_sid2posix = sid2posix;

	for (i = 0; i < USFIELD_LAST; i++)
	cb.cb_width[i] = strlen(gettext(us_field_hdr[i]));

	for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) {
	if ((zfs_prop_is_user(p) &&
	!(types & (USTYPE_PSX_USR \| USTYPE_SMB_USR))) \|\|
	(zfs_prop_is_group(p) &&
	!(types & (USTYPE_PSX_GRP \| USTYPE_SMB_GRP))) \|\|
	(zfs_prop_is_project(p) && types != USTYPE_PROJ))
	continue;

	cb.cb_prop = p;
	if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) {
	zfs_close(zhp);
	return (ret);
	}
	}
	zfs_close(zhp);

	/* Sort the list */
	if ((node = uu_avl_first(avl_tree)) == NULL)
	return (0);

	us_populated = B_TRUE;

	listpool = uu_list_pool_create("tmplist", sizeof (us_node_t),
	offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT);
	list = uu_list_create(listpool, NULL, UU_DEFAULT);
	uu_list_node_init(node, &node->usn_listnode, listpool);

	while (node != NULL) {
	rmnode = node;
	node = uu_avl_next(avl_tree, node);
	uu_avl_remove(avl_tree, rmnode);
	if (uu_list_find(list, rmnode, NULL, &idx2) == NULL)
	uu_list_insert(list, rmnode, idx2);
	}

	for (node = uu_list_first(list); node != NULL;
	node = uu_list_next(list, node)) {
	us_sort_info_t sortinfo = { sortcol, cb.cb_numname };

	if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL)
	uu_avl_insert(avl_tree, node, idx);
	}

	uu_list_destroy(list);
	uu_list_pool_destroy(listpool);

	/* Print and free node nvlist memory */
	print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE,
	cb.cb_avl);

	zfs_free_sort_columns(sortcol);

	/* Clean up the AVL tree */
	if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL)
	nomem();

	while ((node = uu_avl_walk_next(walk)) != NULL) {
	uu_avl_remove(cb.cb_avl, node);
	free(node);
	}

	uu_avl_walk_end(walk);
	uu_avl_destroy(avl_tree);
	uu_avl_pool_destroy(avl_pool);

	return (ret);
	}

	/*
	* list [-Hp][-r\|-d max] [-o property[,...]] [-s property] ... [-S property]
	* [-t type[,...]] [filesystem\|volume\|snapshot] ...
	*
	* -H Scripted mode; elide headers and separate columns by tabs
	* -p Display values in parsable (literal) format.
	* -r Recurse over all children
	* -d Limit recursion by depth.
	* -o Control which fields to display.
	* -s Specify sort columns, descending order.
	* -S Specify sort columns, ascending order.
	* -t Control which object types to display.
	*
	* When given no arguments, list all filesystems in the system.
	* Otherwise, list the specified datasets, optionally recursing down them if
	* '-r' is specified.
	*/
	typedef struct list_cbdata {
	boolean_t cb_first;
	boolean_t cb_literal;
	boolean_t cb_scripted;
	zprop_list_t *cb_proplist;
	} list_cbdata_t;

	/*
	* Given a list of columns to display, output appropriate headers for each one.
	*/
	static void
	print_header(list_cbdata_t *cb)
	{
	zprop_list_t *pl = cb->cb_proplist;
	char headerbuf[ZFS_MAXPROPLEN];
	const char *header;
	int i;
	boolean_t first = B_TRUE;
	boolean_t right_justify;

	for (; pl != NULL; pl = pl->pl_next) {
	if (!first) {
	(void) printf(" ");
	} else {
	first = B_FALSE;
	}

	right_justify = B_FALSE;
	if (pl->pl_prop != ZPROP_INVAL) {
	header = zfs_prop_column_name(pl->pl_prop);
	right_justify = zfs_prop_align_right(pl->pl_prop);
	} else {
	for (i = 0; pl->pl_user_prop[i] != '\0'; i++)
	headerbuf[i] = toupper(pl->pl_user_prop[i]);
	headerbuf[i] = '\0';
	header = headerbuf;
	}

	if (pl->pl_next == NULL && !right_justify)
	(void) printf("%s", header);
	else if (right_justify)
	(void) printf("%*s", (int)pl->pl_width, header);
	else
	(void) printf("%-*s", (int)pl->pl_width, header);
	}

	(void) printf("\n");
	}

	/*
	* Given a dataset and a list of fields, print out all the properties according
	* to the described layout.
	*/
	static void
	print_dataset(zfs_handle_t zhp, list_cbdata_t cb)
	{
	zprop_list_t *pl = cb->cb_proplist;
	boolean_t first = B_TRUE;
	char property[ZFS_MAXPROPLEN];
	nvlist_t *userprops = zfs_get_user_props(zhp);
	nvlist_t *propval;
	char *propstr;
	boolean_t right_justify;

	for (; pl != NULL; pl = pl->pl_next) {
	if (!first) {
	if (cb->cb_scripted)
	(void) printf("\t");
	else
	(void) printf(" ");
	} else {
	first = B_FALSE;
	}

	if (pl->pl_prop == ZFS_PROP_NAME) {
	(void) strlcpy(property, zfs_get_name(zhp),
	sizeof (property));
	propstr = property;
	right_justify = zfs_prop_align_right(pl->pl_prop);
	} else if (pl->pl_prop != ZPROP_INVAL) {
	if (zfs_prop_get(zhp, pl->pl_prop, property,
	sizeof (property), NULL, NULL, 0,
	cb->cb_literal) != 0)
	propstr = "-";
	else
	propstr = property;
	right_justify = zfs_prop_align_right(pl->pl_prop);
	} else if (zfs_prop_userquota(pl->pl_user_prop)) {
	if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
	property, sizeof (property), cb->cb_literal) != 0)
	propstr = "-";
	else
	propstr = property;
	right_justify = B_TRUE;
	} else if (zfs_prop_written(pl->pl_user_prop)) {
	if (zfs_prop_get_written(zhp, pl->pl_user_prop,
	property, sizeof (property), cb->cb_literal) != 0)
	propstr = "-";
	else
	propstr = property;
	right_justify = B_TRUE;
	} else {
	if (nvlist_lookup_nvlist(userprops,
	pl->pl_user_prop, &propval) != 0)
	propstr = "-";
	else
	verify(nvlist_lookup_string(propval,
	ZPROP_VALUE, &propstr) == 0);
	right_justify = B_FALSE;
	}

	/*
	* If this is being called in scripted mode, or if this is the
	* last column and it is left-justified, don't include a width
	* format specifier.
	*/
	if (cb->cb_scripted \|\| (pl->pl_next == NULL && !right_justify))
	(void) printf("%s", propstr);
	else if (right_justify)
	(void) printf("%*s", (int)pl->pl_width, propstr);
	else
	(void) printf("%-*s", (int)pl->pl_width, propstr);
	}

	(void) printf("\n");
	}

	/*
	* Generic callback function to list a dataset or snapshot.
	*/
	static int
	list_callback(zfs_handle_t zhp, void data)
	{
	list_cbdata_t *cbp = data;

	if (cbp->cb_first) {
	if (!cbp->cb_scripted)
	print_header(cbp);
	cbp->cb_first = B_FALSE;
	}

	print_dataset(zhp, cbp);

	return (0);
	}

	static int
	zfs_do_list(int argc, char **argv)
	{
	int c;
	static char default_fields[] =
	"name,used,available,referenced,mountpoint";
	int types = ZFS_TYPE_DATASET;
	boolean_t types_specified = B_FALSE;
	char *fields = NULL;
	list_cbdata_t cb = { 0 };
	char *value;
	int limit = 0;
	int ret = 0;
	zfs_sort_column_t *sortcol = NULL;
	int flags = ZFS_ITER_PROP_LISTSNAPS \| ZFS_ITER_ARGS_CAN_BE_PATHS;

	/* check options */
	while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) {
	switch (c) {
	case 'o':
	fields = optarg;
	break;
	case 'p':
	cb.cb_literal = B_TRUE;
	flags \|= ZFS_ITER_LITERAL_PROPS;
	break;
	case 'd':
	limit = parse_depth(optarg, &flags);
	break;
	case 'r':
	flags \|= ZFS_ITER_RECURSE;
	break;
	case 'H':
	cb.cb_scripted = B_TRUE;
	break;
	case 's':
	if (zfs_add_sort_column(&sortcol, optarg,
	B_FALSE) != 0) {
	(void) fprintf(stderr,
	gettext("invalid property '%s'\n"), optarg);
	usage(B_FALSE);
	}
	break;
	case 'S':
	if (zfs_add_sort_column(&sortcol, optarg,
	B_TRUE) != 0) {
	(void) fprintf(stderr,
	gettext("invalid property '%s'\n"), optarg);
	usage(B_FALSE);
	}
	break;
	case 't':
	types = 0;
	types_specified = B_TRUE;
	flags &= ~ZFS_ITER_PROP_LISTSNAPS;
	while (*optarg != '\0') {
	static char *type_subopts[] = { "filesystem",
	"volume", "snapshot", "snap", "bookmark",
	"all", NULL };

	switch (getsubopt(&optarg, type_subopts,
	&value)) {
	case 0:
	types \|= ZFS_TYPE_FILESYSTEM;
	break;
	case 1:
	types \|= ZFS_TYPE_VOLUME;
	break;
	case 2:
	case 3:
	types \|= ZFS_TYPE_SNAPSHOT;
	break;
	case 4:
	types \|= ZFS_TYPE_BOOKMARK;
	break;
	case 5:
	types = ZFS_TYPE_DATASET \|
	ZFS_TYPE_BOOKMARK;
	break;
	default:
	(void) fprintf(stderr,
	gettext("invalid type '%s'\n"),
	value);
	usage(B_FALSE);
	}
	}
	break;
	case ':':
	(void) fprintf(stderr, gettext("missing argument for "
	"'%c' option\n"), optopt);
	usage(B_FALSE);
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	if (fields == NULL)
	fields = default_fields;

	/*
	* If we are only going to list snapshot names and sort by name,
	* then we can use faster version.
	*/
	if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol))
	flags \|= ZFS_ITER_SIMPLE;

	/*
	* If "-o space" and no types were specified, don't display snapshots.
	*/
	if (strcmp(fields, "space") == 0 && types_specified == B_FALSE)
	types &= ~ZFS_TYPE_SNAPSHOT;

	/*
	* Handle users who want to list all snapshots or bookmarks
	* of the current dataset (ex. 'zfs list -t snapshot <dataset>').
	*/
	if ((types == ZFS_TYPE_SNAPSHOT \|\| types == ZFS_TYPE_BOOKMARK) &&
	argc > 0 && (flags & ZFS_ITER_RECURSE) == 0 && limit == 0) {
	flags \|= (ZFS_ITER_DEPTH_LIMIT \| ZFS_ITER_RECURSE);
	limit = 1;
	}

	/*
	* If the user specifies '-o all', the zprop_get_list() doesn't
	* normally include the name of the dataset. For 'zfs list', we always
	* want this property to be first.
	*/
	if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
	!= 0)
	usage(B_FALSE);

	cb.cb_first = B_TRUE;

	ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist,
	limit, list_callback, &cb);

	zprop_free_list(cb.cb_proplist);
	zfs_free_sort_columns(sortcol);

	if (ret == 0 && cb.cb_first && !cb.cb_scripted)
	(void) fprintf(stderr, gettext("no datasets available\n"));

	return (ret);
	}

	/*
	* zfs rename [-fu] <fs \| snap \| vol> <fs \| snap \| vol>
	* zfs rename [-f] -p <fs \| vol> <fs \| vol>
	* zfs rename [-u] -r <snap> <snap>
	*
	* Renames the given dataset to another of the same type.
	*
	* The '-p' flag creates all the non-existing ancestors of the target first.
	* The '-u' flag prevents file systems from being remounted during rename.
	*/
	/* ARGSUSED */
	static int
	zfs_do_rename(int argc, char **argv)
	{
	zfs_handle_t *zhp;
	renameflags_t flags = { 0 };
	int c;
	int ret = 0;
	int types;
	boolean_t parents = B_FALSE;

	/* check options */
	while ((c = getopt(argc, argv, "pruf")) != -1) {
	switch (c) {
	case 'p':
	parents = B_TRUE;
	break;
	case 'r':
	flags.recursive = B_TRUE;
	break;
	case 'u':
	flags.nounmount = B_TRUE;
	break;
	case 'f':
	flags.forceunmount = B_TRUE;
	break;
	case '?':
	default:
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* check number of arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing source dataset "
	"argument\n"));
	usage(B_FALSE);
	}
	if (argc < 2) {
	(void) fprintf(stderr, gettext("missing target dataset "
	"argument\n"));
	usage(B_FALSE);
	}
	if (argc > 2) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	if (flags.recursive && parents) {
	(void) fprintf(stderr, gettext("-p and -r options are mutually "
	"exclusive\n"));
	usage(B_FALSE);
	}

	if (flags.nounmount && parents) {
	(void) fprintf(stderr, gettext("-u and -p options are mutually "
	"exclusive\n"));
	usage(B_FALSE);
	}

	if (flags.recursive && strchr(argv[0], '@') == 0) {
	(void) fprintf(stderr, gettext("source dataset for recursive "
	"rename must be a snapshot\n"));
	usage(B_FALSE);
	}

	if (flags.nounmount)
	types = ZFS_TYPE_FILESYSTEM;
	else if (parents)
	types = ZFS_TYPE_FILESYSTEM \| ZFS_TYPE_VOLUME;
	else
	types = ZFS_TYPE_DATASET;

	if ((zhp = zfs_open(g_zfs, argv[0], types)) == NULL)
	return (1);

	/* If we were asked and the name looks good, try to create ancestors. */
	if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) &&
	zfs_create_ancestors(g_zfs, argv[1]) != 0) {
	zfs_close(zhp);
	return (1);
	}

	ret = (zfs_rename(zhp, argv[1], flags) != 0);

	zfs_close(zhp);
	return (ret);
	}

	/*
	* zfs promote <fs>
	*
	* Promotes the given clone fs to be the parent
	*/
	/* ARGSUSED */
	static int
	zfs_do_promote(int argc, char **argv)
	{
	zfs_handle_t *zhp;
	int ret = 0;

	/* check options */
	if (argc > 1 && argv[1][0] == '-') {
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	argv[1][1]);
	usage(B_FALSE);
	}

	/* check number of arguments */
	if (argc < 2) {
	(void) fprintf(stderr, gettext("missing clone filesystem"
	" argument\n"));
	usage(B_FALSE);
	}
	if (argc > 2) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM \| ZFS_TYPE_VOLUME);
	if (zhp == NULL)
	return (1);

	ret = (zfs_promote(zhp) != 0);


	zfs_close(zhp);
	return (ret);
	}

	static int
	zfs_do_redact(int argc, char **argv)
	{
	char *snap = NULL;
	char *bookname = NULL;
	char **rsnaps = NULL;
	int numrsnaps = 0;
	argv++;
	argc--;
	if (argc < 3) {
	(void) fprintf(stderr, gettext("too few arguments\n"));
	usage(B_FALSE);
	}

	snap = argv[0];
	bookname = argv[1];
	rsnaps = argv + 2;
	numrsnaps = argc - 2;

	nvlist_t *rsnapnv = fnvlist_alloc();

	for (int i = 0; i < numrsnaps; i++) {
	fnvlist_add_boolean(rsnapnv, rsnaps[i]);
	}

	int err = lzc_redact(snap, bookname, rsnapnv);
	fnvlist_free(rsnapnv);

	switch (err) {
	case 0:
	break;
	case ENOENT:
	(void) fprintf(stderr,
	gettext("provided snapshot %s does not exist\n"), snap);
	break;
	case EEXIST:
	(void) fprintf(stderr, gettext("specified redaction bookmark "
	"(%s) provided already exists\n"), bookname);
	break;
	case ENAMETOOLONG:
	(void) fprintf(stderr, gettext("provided bookmark name cannot "
	"be used, final name would be too long\n"));
	break;
	case E2BIG:
	(void) fprintf(stderr, gettext("too many redaction snapshots "
	"specified\n"));
	break;
	case EINVAL:
	if (strchr(bookname, '#') != NULL)
	(void) fprintf(stderr, gettext(
	"redaction bookmark name must not contain '#'\n"));
	else
	(void) fprintf(stderr, gettext(
	"redaction snapshot must be descendent of "
	"snapshot being redacted\n"));
	break;
	case EALREADY:
	(void) fprintf(stderr, gettext("attempted to redact redacted "
	"dataset or with respect to redacted dataset\n"));
	break;
	case ENOTSUP:
	(void) fprintf(stderr, gettext("redaction bookmarks feature "
	"not enabled\n"));
	break;
	case EXDEV:
	(void) fprintf(stderr, gettext("potentially invalid redaction "
	"snapshot; full dataset names required\n"));
	break;
	default:
	(void) fprintf(stderr, gettext("internal error: %s\n"),
	strerror(errno));
	}

	return (err);
	}

	/*
	* zfs rollback [-rRf] <snapshot>
	*
	* -r Delete any intervening snapshots before doing rollback
	* -R Delete any snapshots and their clones
	* -f ignored for backwards compatibility
	*
	* Given a filesystem, rollback to a specific snapshot, discarding any changes
	* since then and making it the active dataset. If more recent snapshots exist,
	* the command will complain unless the '-r' flag is given.
	*/
	typedef struct rollback_cbdata {
	uint64_t cb_create;
	uint8_t cb_younger_ds_printed;
	boolean_t cb_first;
	int cb_doclones;
	char *cb_target;
	int cb_error;
	boolean_t cb_recurse;
	} rollback_cbdata_t;

	static int
	rollback_check_dependent(zfs_handle_t zhp, void data)
	{
	rollback_cbdata_t *cbp = data;

	if (cbp->cb_first && cbp->cb_recurse) {
	(void) fprintf(stderr, gettext("cannot rollback to "
	"'%s': clones of previous snapshots exist\n"),
	cbp->cb_target);
	(void) fprintf(stderr, gettext("use '-R' to "
	"force deletion of the following clones and "
	"dependents:\n"));
	cbp->cb_first = 0;
	cbp->cb_error = 1;
	}

	(void) fprintf(stderr, "%s\n", zfs_get_name(zhp));

	zfs_close(zhp);
	return (0);
	}


	/*
	* Report some snapshots/bookmarks more recent than the one specified.
	* Used when '-r' is not specified. We reuse this same callback for the
	* snapshot dependents - if 'cb_dependent' is set, then this is a
	* dependent and we should report it without checking the transaction group.
	*/
	static int
	rollback_check(zfs_handle_t zhp, void data)
	{
	rollback_cbdata_t *cbp = data;
	/*
	* Max number of younger snapshots and/or bookmarks to display before
	* we stop the iteration.
	*/
	const uint8_t max_younger = 32;

	if (cbp->cb_doclones) {
	zfs_close(zhp);
	return (0);
	}

	if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) {
	if (cbp->cb_first && !cbp->cb_recurse) {
	(void) fprintf(stderr, gettext("cannot "
	"rollback to '%s': more recent snapshots "
	"or bookmarks exist\n"),
	cbp->cb_target);
	(void) fprintf(stderr, gettext("use '-r' to "
	"force deletion of the following "
	"snapshots and bookmarks:\n"));
	cbp->cb_first = 0;
	cbp->cb_error = 1;
	}

	if (cbp->cb_recurse) {
	if (zfs_iter_dependents(zhp, B_TRUE,
	rollback_check_dependent, cbp) != 0) {
	zfs_close(zhp);
	return (-1);
	}
	} else {
	(void) fprintf(stderr, "%s\n",
	zfs_get_name(zhp));
	cbp->cb_younger_ds_printed++;
	}
	}
	zfs_close(zhp);

	if (cbp->cb_younger_ds_printed == max_younger) {
	/*
	* This non-recursive rollback is going to fail due to the
	* presence of snapshots and/or bookmarks that are younger than
	* the rollback target.
	* We printed some of the offending objects, now we stop
	* zfs_iter_snapshot/bookmark iteration so we can fail fast and
	* avoid iterating over the rest of the younger objects
	*/
	(void) fprintf(stderr, gettext("Output limited to %d "
	"snapshots/bookmarks\n"), max_younger);
	return (-1);
	}
	return (0);
	}

	static int
	zfs_do_rollback(int argc, char **argv)
	{
	int ret = 0;
	int c;
	boolean_t force = B_FALSE;
	rollback_cbdata_t cb = { 0 };
	zfs_handle_t zhp, snap;
	char parentname[ZFS_MAX_DATASET_NAME_LEN];
	char *delim;
	uint64_t min_txg = 0;

	/* check options */
	while ((c = getopt(argc, argv, "rRf")) != -1) {
	switch (c) {
	case 'r':
	cb.cb_recurse = 1;
	break;
	case 'R':
	cb.cb_recurse = 1;
	cb.cb_doclones = 1;
	break;
	case 'f':
	force = B_TRUE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* check number of arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing dataset argument\n"));
	usage(B_FALSE);
	}
	if (argc > 1) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	/* open the snapshot */
	if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL)
	return (1);

	/* open the parent dataset */
	(void) strlcpy(parentname, argv[0], sizeof (parentname));
	verify((delim = strrchr(parentname, '@')) != NULL);
	*delim = '\0';
	if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) {
	zfs_close(snap);
	return (1);
	}

	/*
	* Check for more recent snapshots and/or clones based on the presence
	* of '-r' and '-R'.
	*/
	cb.cb_target = argv[0];
	cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG);
	cb.cb_first = B_TRUE;
	cb.cb_error = 0;

	if (cb.cb_create > 0)
	min_txg = cb.cb_create;

	if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb,
	min_txg, 0)) != 0)
	goto out;
	if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0)
	goto out;

	if ((ret = cb.cb_error) != 0)
	goto out;

	/*
	* Rollback parent to the given snapshot.
	*/
	ret = zfs_rollback(zhp, snap, force);

	out:
	zfs_close(snap);
	zfs_close(zhp);

	if (ret == 0)
	return (0);
	else
	return (1);
	}

	/*
	* zfs set property=value ... { fs \| snap \| vol } ...
	*
	* Sets the given properties for all datasets specified on the command line.
	*/

	static int
	set_callback(zfs_handle_t zhp, void data)
	{
	nvlist_t *props = data;

	if (zfs_prop_set_list(zhp, props) != 0) {
	switch (libzfs_errno(g_zfs)) {
	case EZFS_MOUNTFAILED:
	(void) fprintf(stderr, gettext("property may be set "
	"but unable to remount filesystem\n"));
	break;
	case EZFS_SHARENFSFAILED:
	(void) fprintf(stderr, gettext("property may be set "
	"but unable to reshare filesystem\n"));
	break;
	}
	return (1);
	}
	return (0);
	}

	static int
	zfs_do_set(int argc, char **argv)
	{
	nvlist_t *props = NULL;
	int ds_start = -1; /* argv idx of first dataset arg */
	int ret = 0;
	int i;

	/* check for options */
	if (argc > 1 && argv[1][0] == '-') {
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	argv[1][1]);
	usage(B_FALSE);
	}

	/* check number of arguments */
	if (argc < 2) {
	(void) fprintf(stderr, gettext("missing arguments\n"));
	usage(B_FALSE);
	}
	if (argc < 3) {
	if (strchr(argv[1], '=') == NULL) {
	(void) fprintf(stderr, gettext("missing property=value "
	"argument(s)\n"));
	} else {
	(void) fprintf(stderr, gettext("missing dataset "
	"name(s)\n"));
	}
	usage(B_FALSE);
	}

	/* validate argument order: prop=val args followed by dataset args */
	for (i = 1; i < argc; i++) {
	if (strchr(argv[i], '=') != NULL) {
	if (ds_start > 0) {
	/* out-of-order prop=val argument */
	(void) fprintf(stderr, gettext("invalid "
	"argument order\n"));
	usage(B_FALSE);
	}
	} else if (ds_start < 0) {
	ds_start = i;
	}
	}
	if (ds_start < 0) {
	(void) fprintf(stderr, gettext("missing dataset name(s)\n"));
	usage(B_FALSE);
	}

	/* Populate a list of property settings */
	if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
	nomem();
	for (i = 1; i < ds_start; i++) {
	if (!parseprop(props, argv[i])) {
	ret = -1;
	goto error;
	}
	}

	ret = zfs_for_each(argc - ds_start, argv + ds_start, 0,
	ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props);

	error:
	nvlist_free(props);
	return (ret);
	}

	typedef struct snap_cbdata {
	nvlist_t *sd_nvl;
	boolean_t sd_recursive;
	const char *sd_snapname;
	} snap_cbdata_t;

	static int
	zfs_snapshot_cb(zfs_handle_t zhp, void arg)
	{
	snap_cbdata_t *sd = arg;
	char *name;
	int rv = 0;
	int error;

	if (sd->sd_recursive &&
	zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) {
	zfs_close(zhp);
	return (0);
	}

	error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname);
	if (error == -1)
	nomem();
	fnvlist_add_boolean(sd->sd_nvl, name);
	free(name);

	if (sd->sd_recursive)
	rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd);
	zfs_close(zhp);
	return (rv);
	}

	/*
	* zfs snapshot [-r] [-o prop=value] ... <fs@snap>
	*
	* Creates a snapshot with the given name. While functionally equivalent to
	* 'zfs create', it is a separate command to differentiate intent.
	*/
	static int
	zfs_do_snapshot(int argc, char **argv)
	{
	int ret = 0;
	int c;
	nvlist_t *props;
	snap_cbdata_t sd = { 0 };
	boolean_t multiple_snaps = B_FALSE;

	if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
	nomem();
	if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0)
	nomem();

	/* check options */
	while ((c = getopt(argc, argv, "ro:")) != -1) {
	switch (c) {
	case 'o':
	if (!parseprop(props, optarg)) {
	nvlist_free(sd.sd_nvl);
	nvlist_free(props);
	return (1);
	}
	break;
	case 'r':
	sd.sd_recursive = B_TRUE;
	multiple_snaps = B_TRUE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	goto usage;
	}
	}

	argc -= optind;
	argv += optind;

	/* check number of arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing snapshot argument\n"));
	goto usage;
	}

	if (argc > 1)
	multiple_snaps = B_TRUE;
	for (; argc > 0; argc--, argv++) {
	char *atp;
	zfs_handle_t *zhp;

	atp = strchr(argv[0], '@');
	if (atp == NULL)
	goto usage;
	*atp = '\0';
	sd.sd_snapname = atp + 1;
	zhp = zfs_open(g_zfs, argv[0],
	ZFS_TYPE_FILESYSTEM \| ZFS_TYPE_VOLUME);
	if (zhp == NULL)
	goto usage;
	if (zfs_snapshot_cb(zhp, &sd) != 0)
	goto usage;
	}

	ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props);
	nvlist_free(sd.sd_nvl);
	nvlist_free(props);
	if (ret != 0 && multiple_snaps)
	(void) fprintf(stderr, gettext("no snapshots were created\n"));
	return (ret != 0);

	usage:
	nvlist_free(sd.sd_nvl);
	nvlist_free(props);
	usage(B_FALSE);
	return (-1);
	}


	/*
	* Send a backup stream to stdout.
	*/
	static int
	zfs_do_send(int argc, char **argv)
	{
	char *fromname = NULL;
	char *toname = NULL;
	char *resume_token = NULL;
	char *cp;
	zfs_handle_t *zhp;
	sendflags_t flags = { 0 };
	int c, err;
	nvlist_t *dbgnv = NULL;
	char *redactbook = NULL;

	struct option long_options[] = {
	{"replicate", no_argument, NULL, 'R'},
	{"skip-missing", no_argument, NULL, 's'},
	{"redact", required_argument, NULL, 'd'},
	{"props", no_argument, NULL, 'p'},
	{"parsable", no_argument, NULL, 'P'},
	{"dedup", no_argument, NULL, 'D'},
	{"verbose", no_argument, NULL, 'v'},
	{"dryrun", no_argument, NULL, 'n'},
	{"large-block", no_argument, NULL, 'L'},
	{"embed", no_argument, NULL, 'e'},
	{"resume", required_argument, NULL, 't'},
	{"compressed", no_argument, NULL, 'c'},
	{"raw", no_argument, NULL, 'w'},
	{"backup", no_argument, NULL, 'b'},
	{"holds", no_argument, NULL, 'h'},
	{"saved", no_argument, NULL, 'S'},
	{0, 0, 0, 0}
	};

	/* check options */
	while ((c = getopt_long(argc, argv, ":i:I:RsDpvnPLeht:cwbd:S",
	long_options, NULL)) != -1) {
	switch (c) {
	case 'i':
	if (fromname)
	usage(B_FALSE);
	fromname = optarg;
	break;
	case 'I':
	if (fromname)
	usage(B_FALSE);
	fromname = optarg;
	flags.doall = B_TRUE;
	break;
	case 'R':
	flags.replicate = B_TRUE;
	break;
	case 's':
	flags.skipmissing = B_TRUE;
	break;
	case 'd':
	redactbook = optarg;
	break;
	case 'p':
	flags.props = B_TRUE;
	break;
	case 'b':
	flags.backup = B_TRUE;
	break;
	case 'h':
	flags.holds = B_TRUE;
	break;
	case 'P':
	flags.parsable = B_TRUE;
	break;
	case 'v':
	flags.verbosity++;
	flags.progress = B_TRUE;
	break;
	case 'D':
	(void) fprintf(stderr,
	gettext("WARNING: deduplicated send is no "
	"longer supported. A regular,\n"
	"non-deduplicated stream will be generated.\n\n"));
	break;
	case 'n':
	flags.dryrun = B_TRUE;
	break;
	case 'L':
	flags.largeblock = B_TRUE;
	break;
	case 'e':
	flags.embed_data = B_TRUE;
	break;
	case 't':
	resume_token = optarg;
	break;
	case 'c':
	flags.compress = B_TRUE;
	break;
	case 'w':
	flags.raw = B_TRUE;
	flags.compress = B_TRUE;
	flags.embed_data = B_TRUE;
	flags.largeblock = B_TRUE;
	break;
	case 'S':
	flags.saved = B_TRUE;
	break;
	case ':':
	/*
	* If a parameter was not passed, optopt contains the
	* value that would normally lead us into the
	* appropriate case statement. If it's > 256, then this
	* must be a longopt and we should look at argv to get
	* the string. Otherwise it's just the character, so we
	* should use it directly.
	*/
	if (optopt <= UINT8_MAX) {
	(void) fprintf(stderr,
	gettext("missing argument for '%c' "
	"option\n"), optopt);
	} else {
	(void) fprintf(stderr,
	gettext("missing argument for '%s' "
	"option\n"), argv[optind - 1]);
	}
	usage(B_FALSE);
	break;
	case '?':
	/FALLTHROUGH/
	default:
	/*
	* If an invalid flag was passed, optopt contains the
	* character if it was a short flag, or 0 if it was a
	* longopt.
	*/
	if (optopt != 0) {
	(void) fprintf(stderr,
	gettext("invalid option '%c'\n"), optopt);
	} else {
	(void) fprintf(stderr,
	gettext("invalid option '%s'\n"),
	argv[optind - 1]);

	}
	usage(B_FALSE);
	}
	}

	if (flags.parsable && flags.verbosity == 0)
	flags.verbosity = 1;

	argc -= optind;
	argv += optind;

	if (resume_token != NULL) {
	if (fromname != NULL \|\| flags.replicate \|\| flags.props \|\|
	flags.backup \|\| flags.holds \|\|
	flags.saved \|\| redactbook != NULL) {
	(void) fprintf(stderr,
	gettext("invalid flags combined with -t\n"));
	usage(B_FALSE);
	}
	if (argc > 0) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}
	} else {
	if (argc < 1) {
	(void) fprintf(stderr,
	gettext("missing snapshot argument\n"));
	usage(B_FALSE);
	}
	if (argc > 1) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}
	}

	if (flags.saved) {
	if (fromname != NULL \|\| flags.replicate \|\| flags.props \|\|
	flags.doall \|\| flags.backup \|\|
	flags.holds \|\| flags.largeblock \|\| flags.embed_data \|\|
	flags.compress \|\| flags.raw \|\| redactbook != NULL) {
	(void) fprintf(stderr, gettext("incompatible flags "
	"combined with saved send flag\n"));
	usage(B_FALSE);
	}
	if (strchr(argv[0], '@') != NULL) {
	(void) fprintf(stderr, gettext("saved send must "
	"specify the dataset with partially-received "
	"state\n"));
	usage(B_FALSE);
	}
	}

	if (flags.raw && redactbook != NULL) {
	(void) fprintf(stderr,
	gettext("Error: raw sends may not be redacted.\n"));
	return (1);
	}

	if (!flags.dryrun && isatty(STDOUT_FILENO)) {
	(void) fprintf(stderr,
	gettext("Error: Stream can not be written to a terminal.\n"
	"You must redirect standard output.\n"));
	return (1);
	}

	if (flags.saved) {
	zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET);
	if (zhp == NULL)
	return (1);

	err = zfs_send_saved(zhp, &flags, STDOUT_FILENO,
	resume_token);
	+ if (err != 0)
	+ note_dev_error(errno, STDOUT_FILENO);
	zfs_close(zhp);
	return (err != 0);
	} else if (resume_token != NULL) {
	- return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO,
	- resume_token));
	+ err = zfs_send_resume(g_zfs, &flags, STDOUT_FILENO,
	+ resume_token);
	+ if (err != 0)
	+ note_dev_error(errno, STDOUT_FILENO);
	+ return (err);
	}

	if (flags.skipmissing && !flags.replicate) {
	(void) fprintf(stderr,
	gettext("skip-missing flag can only be used in "
	"conjunction with replicate\n"));
	usage(B_FALSE);
	}

	/*
	* For everything except -R and -I, use the new, cleaner code path.
	*/
	if (!(flags.replicate \|\| flags.doall)) {
	char frombuf[ZFS_MAX_DATASET_NAME_LEN];

	if (fromname != NULL && (strchr(fromname, '#') == NULL &&
	strchr(fromname, '@') == NULL)) {
	/*
	* Neither bookmark or snapshot was specified. Print a
	* warning, and assume snapshot.
	*/
	(void) fprintf(stderr, "Warning: incremental source "
	"didn't specify type, assuming snapshot. Use '@' "
	"or '#' prefix to avoid ambiguity.\n");
	(void) snprintf(frombuf, sizeof (frombuf), "@%s",
	fromname);
	fromname = frombuf;
	}
	if (fromname != NULL &&
	(fromname[0] == '#' \|\| fromname[0] == '@')) {
	/*
	* Incremental source name begins with # or @.
	* Default to same fs as target.
	*/
	char tmpbuf[ZFS_MAX_DATASET_NAME_LEN];
	(void) strlcpy(tmpbuf, fromname, sizeof (tmpbuf));
	(void) strlcpy(frombuf, argv[0], sizeof (frombuf));
	cp = strchr(frombuf, '@');
	if (cp != NULL)
	*cp = '\0';
	(void) strlcat(frombuf, tmpbuf, sizeof (frombuf));
	fromname = frombuf;
	}

	zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET);
	if (zhp == NULL)
	return (1);
	err = zfs_send_one(zhp, fromname, STDOUT_FILENO, &flags,
	redactbook);
	zfs_close(zhp);
	+ if (err != 0)
	+ note_dev_error(errno, STDOUT_FILENO);
	return (err != 0);
	}

	if (fromname != NULL && strchr(fromname, '#')) {
	(void) fprintf(stderr,
	gettext("Error: multiple snapshots cannot be "
	"sent from a bookmark.\n"));
	return (1);
	}

	if (redactbook != NULL) {
	(void) fprintf(stderr, gettext("Error: multiple snapshots "
	"cannot be sent redacted.\n"));
	return (1);
	}

	if ((cp = strchr(argv[0], '@')) == NULL) {
	(void) fprintf(stderr, gettext("Error: "
	"Unsupported flag with filesystem or bookmark.\n"));
	return (1);
	}
	*cp = '\0';
	toname = cp + 1;
	zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM \| ZFS_TYPE_VOLUME);
	if (zhp == NULL)
	return (1);

	/*
	* If they specified the full path to the snapshot, chop off
	* everything except the short name of the snapshot, but special
	* case if they specify the origin.
	*/
	if (fromname && (cp = strchr(fromname, '@')) != NULL) {
	char origin[ZFS_MAX_DATASET_NAME_LEN];
	zprop_source_t src;

	(void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN,
	origin, sizeof (origin), &src, NULL, 0, B_FALSE);

	if (strcmp(origin, fromname) == 0) {
	fromname = NULL;
	flags.fromorigin = B_TRUE;
	} else {
	*cp = '\0';
	if (cp != fromname && strcmp(argv[0], fromname)) {
	(void) fprintf(stderr,
	gettext("incremental source must be "
	"in same filesystem\n"));
	usage(B_FALSE);
	}
	fromname = cp + 1;
	if (strchr(fromname, '@') \|\| strchr(fromname, '/')) {
	(void) fprintf(stderr,
	gettext("invalid incremental source\n"));
	usage(B_FALSE);
	}
	}
	}

	if (flags.replicate && fromname == NULL)
	flags.doall = B_TRUE;

	err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0,
	flags.verbosity >= 3 ? &dbgnv : NULL);

	if (flags.verbosity >= 3 && dbgnv != NULL) {
	/*
	* dump_nvlist prints to stdout, but that's been
	* redirected to a file. Make it print to stderr
	* instead.
	*/
	(void) dup2(STDERR_FILENO, STDOUT_FILENO);
	dump_nvlist(dbgnv, 0);
	nvlist_free(dbgnv);
	}
	zfs_close(zhp);
	+ note_dev_error(errno, STDOUT_FILENO);

	return (err != 0);
	}

	/*
	* Restore a backup stream from stdin.
	*/
	static int
	zfs_do_receive(int argc, char **argv)
	{
	int c, err = 0;
	recvflags_t flags = { 0 };
	boolean_t abort_resumable = B_FALSE;
	nvlist_t *props;

	if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
	nomem();

	/* check options */
	while ((c = getopt(argc, argv, ":o:x:dehMnuvFsA")) != -1) {
	switch (c) {
	case 'o':
	if (!parseprop(props, optarg)) {
	nvlist_free(props);
	usage(B_FALSE);
	}
	break;
	case 'x':
	if (!parsepropname(props, optarg)) {
	nvlist_free(props);
	usage(B_FALSE);
	}
	break;
	case 'd':
	if (flags.istail) {
	(void) fprintf(stderr, gettext("invalid option "
	"combination: -d and -e are mutually "
	"exclusive\n"));
	usage(B_FALSE);
	}
	flags.isprefix = B_TRUE;
	break;
	case 'e':
	if (flags.isprefix) {
	(void) fprintf(stderr, gettext("invalid option "
	"combination: -d and -e are mutually "
	"exclusive\n"));
	usage(B_FALSE);
	}
	flags.istail = B_TRUE;
	break;
	case 'h':
	flags.skipholds = B_TRUE;
	break;
	case 'M':
	flags.forceunmount = B_TRUE;
	break;
	case 'n':
	flags.dryrun = B_TRUE;
	break;
	case 'u':
	flags.nomount = B_TRUE;
	break;
	case 'v':
	flags.verbose = B_TRUE;
	break;
	case 's':
	flags.resumable = B_TRUE;
	break;
	case 'F':
	flags.force = B_TRUE;
	break;
	case 'A':
	abort_resumable = B_TRUE;
	break;
	case ':':
	(void) fprintf(stderr, gettext("missing argument for "
	"'%c' option\n"), optopt);
	usage(B_FALSE);
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* zfs recv -e (use "tail" name) implies -d (remove dataset "head") */
	if (flags.istail)
	flags.isprefix = B_TRUE;

	/* check number of arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing snapshot argument\n"));
	usage(B_FALSE);
	}
	if (argc > 1) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	if (abort_resumable) {
	if (flags.isprefix \|\| flags.istail \|\| flags.dryrun \|\|
	flags.resumable \|\| flags.nomount) {
	(void) fprintf(stderr, gettext("invalid option\n"));
	usage(B_FALSE);
	}

	char namebuf[ZFS_MAX_DATASET_NAME_LEN];
	(void) snprintf(namebuf, sizeof (namebuf),
	"%s/%%recv", argv[0]);

	if (zfs_dataset_exists(g_zfs, namebuf,
	ZFS_TYPE_FILESYSTEM \| ZFS_TYPE_VOLUME)) {
	zfs_handle_t *zhp = zfs_open(g_zfs,
	namebuf, ZFS_TYPE_FILESYSTEM \| ZFS_TYPE_VOLUME);
	if (zhp == NULL) {
	nvlist_free(props);
	return (1);
	}
	err = zfs_destroy(zhp, B_FALSE);
	zfs_close(zhp);
	} else {
	zfs_handle_t *zhp = zfs_open(g_zfs,
	argv[0], ZFS_TYPE_FILESYSTEM \| ZFS_TYPE_VOLUME);
	if (zhp == NULL)
	usage(B_FALSE);
	if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) \|\|
	zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
	NULL, 0, NULL, NULL, 0, B_TRUE) == -1) {
	(void) fprintf(stderr,
	gettext("'%s' does not have any "
	"resumable receive state to abort\n"),
	argv[0]);
	nvlist_free(props);
	zfs_close(zhp);
	return (1);
	}
	err = zfs_destroy(zhp, B_FALSE);
	zfs_close(zhp);
	}
	nvlist_free(props);
	return (err != 0);
	}

	if (isatty(STDIN_FILENO)) {
	(void) fprintf(stderr,
	gettext("Error: Backup stream can not be read "
	"from a terminal.\n"
	"You must redirect standard input.\n"));
	nvlist_free(props);
	return (1);
	}
	err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL);
	nvlist_free(props);

	return (err != 0);
	}

	/*
	* allow/unallow stuff
	*/
	/* copied from zfs/sys/dsl_deleg.h */
	#define ZFS_DELEG_PERM_CREATE "create"
	#define ZFS_DELEG_PERM_DESTROY "destroy"
	#define ZFS_DELEG_PERM_SNAPSHOT "snapshot"
	#define ZFS_DELEG_PERM_ROLLBACK "rollback"
	#define ZFS_DELEG_PERM_CLONE "clone"
	#define ZFS_DELEG_PERM_PROMOTE "promote"
	#define ZFS_DELEG_PERM_RENAME "rename"
	#define ZFS_DELEG_PERM_MOUNT "mount"
	#define ZFS_DELEG_PERM_SHARE "share"
	#define ZFS_DELEG_PERM_SEND "send"
	#define ZFS_DELEG_PERM_RECEIVE "receive"
	#define ZFS_DELEG_PERM_ALLOW "allow"
	#define ZFS_DELEG_PERM_USERPROP "userprop"
	#define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */
	#define ZFS_DELEG_PERM_USERQUOTA "userquota"
	#define ZFS_DELEG_PERM_GROUPQUOTA "groupquota"
	#define ZFS_DELEG_PERM_USERUSED "userused"
	#define ZFS_DELEG_PERM_GROUPUSED "groupused"
	#define ZFS_DELEG_PERM_USEROBJQUOTA "userobjquota"
	#define ZFS_DELEG_PERM_GROUPOBJQUOTA "groupobjquota"
	#define ZFS_DELEG_PERM_USEROBJUSED "userobjused"
	#define ZFS_DELEG_PERM_GROUPOBJUSED "groupobjused"

	#define ZFS_DELEG_PERM_HOLD "hold"
	#define ZFS_DELEG_PERM_RELEASE "release"
	#define ZFS_DELEG_PERM_DIFF "diff"
	#define ZFS_DELEG_PERM_BOOKMARK "bookmark"
	#define ZFS_DELEG_PERM_LOAD_KEY "load-key"
	#define ZFS_DELEG_PERM_CHANGE_KEY "change-key"

	#define ZFS_DELEG_PERM_PROJECTUSED "projectused"
	#define ZFS_DELEG_PERM_PROJECTQUOTA "projectquota"
	#define ZFS_DELEG_PERM_PROJECTOBJUSED "projectobjused"
	#define ZFS_DELEG_PERM_PROJECTOBJQUOTA "projectobjquota"

	#define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE

	static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = {
	{ ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW },
	{ ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE },
	{ ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE },
	{ ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY },
	{ ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF},
	{ ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD },
	{ ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT },
	{ ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE },
	{ ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE },
	{ ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE },
	{ ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME },
	{ ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK },
	{ ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND },
	{ ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE },
	{ ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT },
	{ ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK },
	{ ZFS_DELEG_PERM_LOAD_KEY, ZFS_DELEG_NOTE_LOAD_KEY },
	{ ZFS_DELEG_PERM_CHANGE_KEY, ZFS_DELEG_NOTE_CHANGE_KEY },

	{ ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA },
	{ ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED },
	{ ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP },
	{ ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA },
	{ ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED },
	{ ZFS_DELEG_PERM_USEROBJQUOTA, ZFS_DELEG_NOTE_USEROBJQUOTA },
	{ ZFS_DELEG_PERM_USEROBJUSED, ZFS_DELEG_NOTE_USEROBJUSED },
	{ ZFS_DELEG_PERM_GROUPOBJQUOTA, ZFS_DELEG_NOTE_GROUPOBJQUOTA },
	{ ZFS_DELEG_PERM_GROUPOBJUSED, ZFS_DELEG_NOTE_GROUPOBJUSED },
	{ ZFS_DELEG_PERM_PROJECTUSED, ZFS_DELEG_NOTE_PROJECTUSED },
	{ ZFS_DELEG_PERM_PROJECTQUOTA, ZFS_DELEG_NOTE_PROJECTQUOTA },
	{ ZFS_DELEG_PERM_PROJECTOBJUSED, ZFS_DELEG_NOTE_PROJECTOBJUSED },
	{ ZFS_DELEG_PERM_PROJECTOBJQUOTA, ZFS_DELEG_NOTE_PROJECTOBJQUOTA },
	{ NULL, ZFS_DELEG_NOTE_NONE }
	};

	/* permission structure */
	typedef struct deleg_perm {
	zfs_deleg_who_type_t dp_who_type;
	const char *dp_name;
	boolean_t dp_local;
	boolean_t dp_descend;
	} deleg_perm_t;

	/* */
	typedef struct deleg_perm_node {
	deleg_perm_t dpn_perm;

	uu_avl_node_t dpn_avl_node;
	} deleg_perm_node_t;

	typedef struct fs_perm fs_perm_t;

	/* permissions set */
	typedef struct who_perm {
	zfs_deleg_who_type_t who_type;
	const char who_name; / id */
	char who_ug_name[256]; /* user/group name */
	fs_perm_t who_fsperm; / uplink */

	uu_avl_t who_deleg_perm_avl; / permissions */
	} who_perm_t;

	/* */
	typedef struct who_perm_node {
	who_perm_t who_perm;
	uu_avl_node_t who_avl_node;
	} who_perm_node_t;

	typedef struct fs_perm_set fs_perm_set_t;
	/* fs permissions */
	struct fs_perm {
	const char *fsp_name;

	uu_avl_t fsp_sc_avl; / sets,create */
	uu_avl_t fsp_uge_avl; / user,group,everyone */

	fs_perm_set_t fsp_set; / uplink */
	};

	/* */
	typedef struct fs_perm_node {
	fs_perm_t fspn_fsperm;
	uu_avl_t *fspn_avl;

	uu_list_node_t fspn_list_node;
	} fs_perm_node_t;

	/* top level structure */
	struct fs_perm_set {
	uu_list_pool_t *fsps_list_pool;
	uu_list_t fsps_list; / list of fs_perms */

	uu_avl_pool_t *fsps_named_set_avl_pool;
	uu_avl_pool_t *fsps_who_perm_avl_pool;
	uu_avl_pool_t *fsps_deleg_perm_avl_pool;
	};

	static inline const char *
	deleg_perm_type(zfs_deleg_note_t note)
	{
	/* subcommands */
	switch (note) {
	/* SUBCOMMANDS */
	/* OTHER */
	case ZFS_DELEG_NOTE_GROUPQUOTA:
	case ZFS_DELEG_NOTE_GROUPUSED:
	case ZFS_DELEG_NOTE_USERPROP:
	case ZFS_DELEG_NOTE_USERQUOTA:
	case ZFS_DELEG_NOTE_USERUSED:
	case ZFS_DELEG_NOTE_USEROBJQUOTA:
	case ZFS_DELEG_NOTE_USEROBJUSED:
	case ZFS_DELEG_NOTE_GROUPOBJQUOTA:
	case ZFS_DELEG_NOTE_GROUPOBJUSED:
	case ZFS_DELEG_NOTE_PROJECTUSED:
	case ZFS_DELEG_NOTE_PROJECTQUOTA:
	case ZFS_DELEG_NOTE_PROJECTOBJUSED:
	case ZFS_DELEG_NOTE_PROJECTOBJQUOTA:
	/* other */
	return (gettext("other"));
	default:
	return (gettext("subcommand"));
	}
	}

	static int
	who_type2weight(zfs_deleg_who_type_t who_type)
	{
	int res;
	switch (who_type) {
	case ZFS_DELEG_NAMED_SET_SETS:
	case ZFS_DELEG_NAMED_SET:
	res = 0;
	break;
	case ZFS_DELEG_CREATE_SETS:
	case ZFS_DELEG_CREATE:
	res = 1;
	break;
	case ZFS_DELEG_USER_SETS:
	case ZFS_DELEG_USER:
	res = 2;
	break;
	case ZFS_DELEG_GROUP_SETS:
	case ZFS_DELEG_GROUP:
	res = 3;
	break;
	case ZFS_DELEG_EVERYONE_SETS:
	case ZFS_DELEG_EVERYONE:
	res = 4;
	break;
	default:
	res = -1;
	}

	return (res);
	}

	/* ARGSUSED */
	static int
	who_perm_compare(const void larg, const void rarg, void *unused)
	{
	const who_perm_node_t *l = larg;
	const who_perm_node_t *r = rarg;
	zfs_deleg_who_type_t ltype = l->who_perm.who_type;
	zfs_deleg_who_type_t rtype = r->who_perm.who_type;
	int lweight = who_type2weight(ltype);
	int rweight = who_type2weight(rtype);
	int res = lweight - rweight;
	if (res == 0)
	res = strncmp(l->who_perm.who_name, r->who_perm.who_name,
	ZFS_MAX_DELEG_NAME-1);

	if (res == 0)
	return (0);
	if (res > 0)
	return (1);
	else
	return (-1);
	}

	/* ARGSUSED */
	static int
	deleg_perm_compare(const void larg, const void rarg, void *unused)
	{
	const deleg_perm_node_t *l = larg;
	const deleg_perm_node_t *r = rarg;
	int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name,
	ZFS_MAX_DELEG_NAME-1);

	if (res == 0)
	return (0);

	if (res > 0)
	return (1);
	else
	return (-1);
	}

	static inline void
	fs_perm_set_init(fs_perm_set_t *fspset)
	{
	bzero(fspset, sizeof (fs_perm_set_t));

	if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool",
	sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node),
	NULL, UU_DEFAULT)) == NULL)
	nomem();
	if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL,
	UU_DEFAULT)) == NULL)
	nomem();

	if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create(
	"named_set_avl_pool", sizeof (who_perm_node_t), offsetof(
	who_perm_node_t, who_avl_node), who_perm_compare,
	UU_DEFAULT)) == NULL)
	nomem();

	if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create(
	"who_perm_avl_pool", sizeof (who_perm_node_t), offsetof(
	who_perm_node_t, who_avl_node), who_perm_compare,
	UU_DEFAULT)) == NULL)
	nomem();

	if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create(
	"deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof(
	deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT))
	== NULL)
	nomem();
	}

	static inline void fs_perm_fini(fs_perm_t *);
	static inline void who_perm_fini(who_perm_t *);

	static inline void
	fs_perm_set_fini(fs_perm_set_t *fspset)
	{
	fs_perm_node_t *node = uu_list_first(fspset->fsps_list);

	while (node != NULL) {
	fs_perm_node_t *next_node =
	uu_list_next(fspset->fsps_list, node);
	fs_perm_t *fsperm = &node->fspn_fsperm;
	fs_perm_fini(fsperm);
	uu_list_remove(fspset->fsps_list, node);
	free(node);
	node = next_node;
	}

	uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool);
	uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool);
	uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool);
	}

	static inline void
	deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type,
	const char *name)
	{
	deleg_perm->dp_who_type = type;
	deleg_perm->dp_name = name;
	}

	static inline void
	who_perm_init(who_perm_t who_perm, fs_perm_t fsperm,
	zfs_deleg_who_type_t type, const char *name)
	{
	uu_avl_pool_t *pool;
	pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool;

	bzero(who_perm, sizeof (who_perm_t));

	if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL,
	UU_DEFAULT)) == NULL)
	nomem();

	who_perm->who_type = type;
	who_perm->who_name = name;
	who_perm->who_fsperm = fsperm;
	}

	static inline void
	who_perm_fini(who_perm_t *who_perm)
	{
	deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl);

	while (node != NULL) {
	deleg_perm_node_t *next_node =
	uu_avl_next(who_perm->who_deleg_perm_avl, node);

	uu_avl_remove(who_perm->who_deleg_perm_avl, node);
	free(node);
	node = next_node;
	}

	uu_avl_destroy(who_perm->who_deleg_perm_avl);
	}

	static inline void
	fs_perm_init(fs_perm_t fsperm, fs_perm_set_t fspset, const char *fsname)
	{
	uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool;
	uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool;

	bzero(fsperm, sizeof (fs_perm_t));

	if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT))
	== NULL)
	nomem();

	if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT))
	== NULL)
	nomem();

	fsperm->fsp_set = fspset;
	fsperm->fsp_name = fsname;
	}

	static inline void
	fs_perm_fini(fs_perm_t *fsperm)
	{
	who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl);
	while (node != NULL) {
	who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl,
	node);
	who_perm_t *who_perm = &node->who_perm;
	who_perm_fini(who_perm);
	uu_avl_remove(fsperm->fsp_sc_avl, node);
	free(node);
	node = next_node;
	}

	node = uu_avl_first(fsperm->fsp_uge_avl);
	while (node != NULL) {
	who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl,
	node);
	who_perm_t *who_perm = &node->who_perm;
	who_perm_fini(who_perm);
	uu_avl_remove(fsperm->fsp_uge_avl, node);
	free(node);
	node = next_node;
	}

	uu_avl_destroy(fsperm->fsp_sc_avl);
	uu_avl_destroy(fsperm->fsp_uge_avl);
	}

	static void
	set_deleg_perm_node(uu_avl_t avl, deleg_perm_node_t node,
	zfs_deleg_who_type_t who_type, const char *name, char locality)
	{
	uu_avl_index_t idx = 0;

	deleg_perm_node_t *found_node = NULL;
	deleg_perm_t *deleg_perm = &node->dpn_perm;

	deleg_perm_init(deleg_perm, who_type, name);

	if ((found_node = uu_avl_find(avl, node, NULL, &idx))
	== NULL)
	uu_avl_insert(avl, node, idx);
	else {
	node = found_node;
	deleg_perm = &node->dpn_perm;
	}


	switch (locality) {
	case ZFS_DELEG_LOCAL:
	deleg_perm->dp_local = B_TRUE;
	break;
	case ZFS_DELEG_DESCENDENT:
	deleg_perm->dp_descend = B_TRUE;
	break;
	case ZFS_DELEG_NA:
	break;
	default:
	assert(B_FALSE); /* invalid locality */
	}
	}

	static inline int
	parse_who_perm(who_perm_t who_perm, nvlist_t nvl, char locality)
	{
	nvpair_t *nvp = NULL;
	fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set;
	uu_avl_t *avl = who_perm->who_deleg_perm_avl;
	zfs_deleg_who_type_t who_type = who_perm->who_type;

	while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
	const char *name = nvpair_name(nvp);
	data_type_t type = nvpair_type(nvp);
	uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool;
	deleg_perm_node_t *node =
	safe_malloc(sizeof (deleg_perm_node_t));

	VERIFY(type == DATA_TYPE_BOOLEAN);

	uu_avl_node_init(node, &node->dpn_avl_node, avl_pool);
	set_deleg_perm_node(avl, node, who_type, name, locality);
	}

	return (0);
	}

	static inline int
	parse_fs_perm(fs_perm_t fsperm, nvlist_t nvl)
	{
	nvpair_t *nvp = NULL;
	fs_perm_set_t *fspset = fsperm->fsp_set;

	while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
	nvlist_t *nvl2 = NULL;
	const char *name = nvpair_name(nvp);
	uu_avl_t *avl = NULL;
	uu_avl_pool_t *avl_pool = NULL;
	zfs_deleg_who_type_t perm_type = name[0];
	char perm_locality = name[1];
	const char *perm_name = name + 3;
	who_perm_t *who_perm = NULL;

	assert('$' == name[2]);

	if (nvpair_value_nvlist(nvp, &nvl2) != 0)
	return (-1);

	switch (perm_type) {
	case ZFS_DELEG_CREATE:
	case ZFS_DELEG_CREATE_SETS:
	case ZFS_DELEG_NAMED_SET:
	case ZFS_DELEG_NAMED_SET_SETS:
	avl_pool = fspset->fsps_named_set_avl_pool;
	avl = fsperm->fsp_sc_avl;
	break;
	case ZFS_DELEG_USER:
	case ZFS_DELEG_USER_SETS:
	case ZFS_DELEG_GROUP:
	case ZFS_DELEG_GROUP_SETS:
	case ZFS_DELEG_EVERYONE:
	case ZFS_DELEG_EVERYONE_SETS:
	avl_pool = fspset->fsps_who_perm_avl_pool;
	avl = fsperm->fsp_uge_avl;
	break;

	default:
	assert(!"unhandled zfs_deleg_who_type_t");
	}

	who_perm_node_t *found_node = NULL;
	who_perm_node_t *node = safe_malloc(
	sizeof (who_perm_node_t));
	who_perm = &node->who_perm;
	uu_avl_index_t idx = 0;

	uu_avl_node_init(node, &node->who_avl_node, avl_pool);
	who_perm_init(who_perm, fsperm, perm_type, perm_name);

	if ((found_node = uu_avl_find(avl, node, NULL, &idx))
	== NULL) {
	if (avl == fsperm->fsp_uge_avl) {
	uid_t rid = 0;
	struct passwd *p = NULL;
	struct group *g = NULL;
	const char *nice_name = NULL;

	switch (perm_type) {
	case ZFS_DELEG_USER_SETS:
	case ZFS_DELEG_USER:
	rid = atoi(perm_name);
	p = getpwuid(rid);
	if (p)
	nice_name = p->pw_name;
	break;
	case ZFS_DELEG_GROUP_SETS:
	case ZFS_DELEG_GROUP:
	rid = atoi(perm_name);
	g = getgrgid(rid);
	if (g)
	nice_name = g->gr_name;
	break;

	default:
	break;
	}

	if (nice_name != NULL) {
	(void) strlcpy(
	node->who_perm.who_ug_name,
	nice_name, 256);
	} else {
	/* User or group unknown */
	(void) snprintf(
	node->who_perm.who_ug_name,
	sizeof (node->who_perm.who_ug_name),
	"(unknown: %d)", rid);
	}
	}

	uu_avl_insert(avl, node, idx);
	} else {
	node = found_node;
	who_perm = &node->who_perm;
	}

	assert(who_perm != NULL);
	(void) parse_who_perm(who_perm, nvl2, perm_locality);
	}

	return (0);
	}

	static inline int
	parse_fs_perm_set(fs_perm_set_t fspset, nvlist_t nvl)
	{
	nvpair_t *nvp = NULL;
	uu_avl_index_t idx = 0;

	while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
	nvlist_t *nvl2 = NULL;
	const char *fsname = nvpair_name(nvp);
	data_type_t type = nvpair_type(nvp);
	fs_perm_t *fsperm = NULL;
	fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t));
	if (node == NULL)
	nomem();

	fsperm = &node->fspn_fsperm;

	VERIFY(DATA_TYPE_NVLIST == type);

	uu_list_node_init(node, &node->fspn_list_node,
	fspset->fsps_list_pool);

	idx = uu_list_numnodes(fspset->fsps_list);
	fs_perm_init(fsperm, fspset, fsname);

	if (nvpair_value_nvlist(nvp, &nvl2) != 0)
	return (-1);

	(void) parse_fs_perm(fsperm, nvl2);

	uu_list_insert(fspset->fsps_list, node, idx);
	}

	return (0);
	}

	static inline const char *
	deleg_perm_comment(zfs_deleg_note_t note)
	{
	const char *str = "";

	/* subcommands */
	switch (note) {
	/* SUBCOMMANDS */
	case ZFS_DELEG_NOTE_ALLOW:
	str = gettext("Must also have the permission that is being"
	"\n\t\t\t\tallowed");
	break;
	case ZFS_DELEG_NOTE_CLONE:
	str = gettext("Must also have the 'create' ability and 'mount'"
	"\n\t\t\t\tability in the origin file system");
	break;
	case ZFS_DELEG_NOTE_CREATE:
	str = gettext("Must also have the 'mount' ability");
	break;
	case ZFS_DELEG_NOTE_DESTROY:
	str = gettext("Must also have the 'mount' ability");
	break;
	case ZFS_DELEG_NOTE_DIFF:
	str = gettext("Allows lookup of paths within a dataset;"
	"\n\t\t\t\tgiven an object number. Ordinary users need this"
	"\n\t\t\t\tin order to use zfs diff");
	break;
	case ZFS_DELEG_NOTE_HOLD:
	str = gettext("Allows adding a user hold to a snapshot");
	break;
	case ZFS_DELEG_NOTE_MOUNT:
	str = gettext("Allows mount/umount of ZFS datasets");
	break;
	case ZFS_DELEG_NOTE_PROMOTE:
	str = gettext("Must also have the 'mount'\n\t\t\t\tand"
	" 'promote' ability in the origin file system");
	break;
	case ZFS_DELEG_NOTE_RECEIVE:
	str = gettext("Must also have the 'mount' and 'create'"
	" ability");
	break;
	case ZFS_DELEG_NOTE_RELEASE:
	str = gettext("Allows releasing a user hold which\n\t\t\t\t"
	"might destroy the snapshot");
	break;
	case ZFS_DELEG_NOTE_RENAME:
	str = gettext("Must also have the 'mount' and 'create'"
	"\n\t\t\t\tability in the new parent");
	break;
	case ZFS_DELEG_NOTE_ROLLBACK:
	str = gettext("");
	break;
	case ZFS_DELEG_NOTE_SEND:
	str = gettext("");
	break;
	case ZFS_DELEG_NOTE_SHARE:
	str = gettext("Allows sharing file systems over NFS or SMB"
	"\n\t\t\t\tprotocols");
	break;
	case ZFS_DELEG_NOTE_SNAPSHOT:
	str = gettext("");
	break;
	case ZFS_DELEG_NOTE_LOAD_KEY:
	str = gettext("Allows loading or unloading an encryption key");
	break;
	case ZFS_DELEG_NOTE_CHANGE_KEY:
	str = gettext("Allows changing or adding an encryption key");
	break;
	/*
	* case ZFS_DELEG_NOTE_VSCAN:
	* str = gettext("");
	* break;
	*/
	/* OTHER */
	case ZFS_DELEG_NOTE_GROUPQUOTA:
	str = gettext("Allows accessing any groupquota@... property");
	break;
	case ZFS_DELEG_NOTE_GROUPUSED:
	str = gettext("Allows reading any groupused@... property");
	break;
	case ZFS_DELEG_NOTE_USERPROP:
	str = gettext("Allows changing any user property");
	break;
	case ZFS_DELEG_NOTE_USERQUOTA:
	str = gettext("Allows accessing any userquota@... property");
	break;
	case ZFS_DELEG_NOTE_USERUSED:
	str = gettext("Allows reading any userused@... property");
	break;
	case ZFS_DELEG_NOTE_USEROBJQUOTA:
	str = gettext("Allows accessing any userobjquota@... property");
	break;
	case ZFS_DELEG_NOTE_GROUPOBJQUOTA:
	str = gettext("Allows accessing any \n\t\t\t\t"
	"groupobjquota@... property");
	break;
	case ZFS_DELEG_NOTE_GROUPOBJUSED:
	str = gettext("Allows reading any groupobjused@... property");
	break;
	case ZFS_DELEG_NOTE_USEROBJUSED:
	str = gettext("Allows reading any userobjused@... property");
	break;
	case ZFS_DELEG_NOTE_PROJECTQUOTA:
	str = gettext("Allows accessing any projectquota@... property");
	break;
	case ZFS_DELEG_NOTE_PROJECTOBJQUOTA:
	str = gettext("Allows accessing any \n\t\t\t\t"
	"projectobjquota@... property");
	break;
	case ZFS_DELEG_NOTE_PROJECTUSED:
	str = gettext("Allows reading any projectused@... property");
	break;
	case ZFS_DELEG_NOTE_PROJECTOBJUSED:
	str = gettext("Allows accessing any \n\t\t\t\t"
	"projectobjused@... property");
	break;
	/* other */
	default:
	str = "";
	}

	return (str);
	}

	struct allow_opts {
	boolean_t local;
	boolean_t descend;
	boolean_t user;
	boolean_t group;
	boolean_t everyone;
	boolean_t create;
	boolean_t set;
	boolean_t recursive; /* unallow only */
	boolean_t prt_usage;

	boolean_t prt_perms;
	char *who;
	char *perms;
	const char *dataset;
	};

	static inline int
	prop_cmp(const void a, const void b)
	{
	const char str1 = (const char **)a;
	const char str2 = (const char **)b;
	return (strcmp(str1, str2));
	}

	static void
	allow_usage(boolean_t un, boolean_t requested, const char *msg)
	{
	const char *opt_desc[] = {
	"-h", gettext("show this help message and exit"),
	"-l", gettext("set permission locally"),
	"-d", gettext("set permission for descents"),
	"-u", gettext("set permission for user"),
	"-g", gettext("set permission for group"),
	"-e", gettext("set permission for everyone"),
	"-c", gettext("set create time permission"),
	"-s", gettext("define permission set"),
	/* unallow only */
	"-r", gettext("remove permissions recursively"),
	};
	size_t unallow_size = sizeof (opt_desc) / sizeof (char *);
	size_t allow_size = unallow_size - 2;
	const char *props[ZFS_NUM_PROPS];
	int i;
	size_t count = 0;
	FILE *fp = requested ? stdout : stderr;
	zprop_desc_t *pdtbl = zfs_prop_get_table();
	const char *fmt = gettext("%-16s %-14s\t%s\n");

	(void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW :
	HELP_ALLOW));
	(void) fprintf(fp, gettext("Options:\n"));
	for (i = 0; i < (un ? unallow_size : allow_size); i += 2) {
	const char *opt = opt_desc[i];
	const char *optdsc = opt_desc[i + 1];
	(void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc);
	}

	(void) fprintf(fp, gettext("\nThe following permissions are "
	"supported:\n\n"));
	(void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"),
	gettext("NOTES"));
	for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) {
	const char *perm_name = zfs_deleg_perm_tbl[i].z_perm;
	zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note;
	const char *perm_type = deleg_perm_type(perm_note);
	const char *perm_comment = deleg_perm_comment(perm_note);
	(void) fprintf(fp, fmt, perm_name, perm_type, perm_comment);
	}

	for (i = 0; i < ZFS_NUM_PROPS; i++) {
	zprop_desc_t *pd = &pdtbl[i];
	if (pd->pd_visible != B_TRUE)
	continue;

	if (pd->pd_attr == PROP_READONLY)
	continue;

	props[count++] = pd->pd_name;
	}
	props[count] = NULL;

	qsort(props, count, sizeof (char *), prop_cmp);

	for (i = 0; i < count; i++)
	(void) fprintf(fp, fmt, props[i], gettext("property"), "");

	if (msg != NULL)
	(void) fprintf(fp, gettext("\nzfs: error: %s"), msg);

	exit(requested ? 0 : 2);
	}

	static inline const char *
	munge_args(int argc, char **argv, boolean_t un, size_t expected_argc,
	char **permsp)
	{
	if (un && argc == expected_argc - 1)
	*permsp = NULL;
	else if (argc == expected_argc)
	*permsp = argv[argc - 2];
	else
	allow_usage(un, B_FALSE,
	gettext("wrong number of parameters\n"));

	return (argv[argc - 1]);
	}

	static void
	parse_allow_args(int argc, char *argv, boolean_t un, struct allow_opts opts)
	{
	int uge_sum = opts->user + opts->group + opts->everyone;
	int csuge_sum = opts->create + opts->set + uge_sum;
	int ldcsuge_sum = csuge_sum + opts->local + opts->descend;
	int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum;

	if (uge_sum > 1)
	allow_usage(un, B_FALSE,
	gettext("-u, -g, and -e are mutually exclusive\n"));

	if (opts->prt_usage) {
	if (argc == 0 && all_sum == 0)
	allow_usage(un, B_TRUE, NULL);
	else
	usage(B_FALSE);
	}

	if (opts->set) {
	if (csuge_sum > 1)
	allow_usage(un, B_FALSE,
	gettext("invalid options combined with -s\n"));

	opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
	if (argv[0][0] != '@')
	allow_usage(un, B_FALSE,
	gettext("invalid set name: missing '@' prefix\n"));
	opts->who = argv[0];
	} else if (opts->create) {
	if (ldcsuge_sum > 1)
	allow_usage(un, B_FALSE,
	gettext("invalid options combined with -c\n"));
	opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
	} else if (opts->everyone) {
	if (csuge_sum > 1)
	allow_usage(un, B_FALSE,
	gettext("invalid options combined with -e\n"));
	opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
	} else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone")
	== 0) {
	opts->everyone = B_TRUE;
	argc--;
	argv++;
	opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
	} else if (argc == 1 && !un) {
	opts->prt_perms = B_TRUE;
	opts->dataset = argv[argc-1];
	} else {
	opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
	opts->who = argv[0];
	}

	if (!opts->local && !opts->descend) {
	opts->local = B_TRUE;
	opts->descend = B_TRUE;
	}
	}

	static void
	store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend,
	const char who, char perms, nvlist_t *top_nvl)
	{
	int i;
	char ld[2] = { '\0', '\0' };
	char who_buf[MAXNAMELEN + 32];
	char base_type = '\0';
	char set_type = '\0';
	nvlist_t *base_nvl = NULL;
	nvlist_t *set_nvl = NULL;
	nvlist_t *nvl;

	if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0)
	nomem();
	if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0)
	nomem();

	switch (type) {
	case ZFS_DELEG_NAMED_SET_SETS:
	case ZFS_DELEG_NAMED_SET:
	set_type = ZFS_DELEG_NAMED_SET_SETS;
	base_type = ZFS_DELEG_NAMED_SET;
	ld[0] = ZFS_DELEG_NA;
	break;
	case ZFS_DELEG_CREATE_SETS:
	case ZFS_DELEG_CREATE:
	set_type = ZFS_DELEG_CREATE_SETS;
	base_type = ZFS_DELEG_CREATE;
	ld[0] = ZFS_DELEG_NA;
	break;
	case ZFS_DELEG_USER_SETS:
	case ZFS_DELEG_USER:
	set_type = ZFS_DELEG_USER_SETS;
	base_type = ZFS_DELEG_USER;
	if (local)
	ld[0] = ZFS_DELEG_LOCAL;
	if (descend)
	ld[1] = ZFS_DELEG_DESCENDENT;
	break;
	case ZFS_DELEG_GROUP_SETS:
	case ZFS_DELEG_GROUP:
	set_type = ZFS_DELEG_GROUP_SETS;
	base_type = ZFS_DELEG_GROUP;
	if (local)
	ld[0] = ZFS_DELEG_LOCAL;
	if (descend)
	ld[1] = ZFS_DELEG_DESCENDENT;
	break;
	case ZFS_DELEG_EVERYONE_SETS:
	case ZFS_DELEG_EVERYONE:
	set_type = ZFS_DELEG_EVERYONE_SETS;
	base_type = ZFS_DELEG_EVERYONE;
	if (local)
	ld[0] = ZFS_DELEG_LOCAL;
	if (descend)
	ld[1] = ZFS_DELEG_DESCENDENT;
	break;

	default:
	assert(set_type != '\0' && base_type != '\0');
	}

	if (perms != NULL) {
	char *curr = perms;
	char *end = curr + strlen(perms);

	while (curr < end) {
	char *delim = strchr(curr, ',');
	if (delim == NULL)
	delim = end;
	else
	*delim = '\0';

	if (curr[0] == '@')
	nvl = set_nvl;
	else
	nvl = base_nvl;

	(void) nvlist_add_boolean(nvl, curr);
	if (delim != end)
	*delim = ',';
	curr = delim + 1;
	}

	for (i = 0; i < 2; i++) {
	char locality = ld[i];
	if (locality == 0)
	continue;

	if (!nvlist_empty(base_nvl)) {
	if (who != NULL)
	(void) snprintf(who_buf,
	sizeof (who_buf), "%c%c$%s",
	base_type, locality, who);
	else
	(void) snprintf(who_buf,
	sizeof (who_buf), "%c%c$",
	base_type, locality);

	(void) nvlist_add_nvlist(top_nvl, who_buf,
	base_nvl);
	}


	if (!nvlist_empty(set_nvl)) {
	if (who != NULL)
	(void) snprintf(who_buf,
	sizeof (who_buf), "%c%c$%s",
	set_type, locality, who);
	else
	(void) snprintf(who_buf,
	sizeof (who_buf), "%c%c$",
	set_type, locality);

	(void) nvlist_add_nvlist(top_nvl, who_buf,
	set_nvl);
	}
	}
	} else {
	for (i = 0; i < 2; i++) {
	char locality = ld[i];
	if (locality == 0)
	continue;

	if (who != NULL)
	(void) snprintf(who_buf, sizeof (who_buf),
	"%c%c$%s", base_type, locality, who);
	else
	(void) snprintf(who_buf, sizeof (who_buf),
	"%c%c$", base_type, locality);
	(void) nvlist_add_boolean(top_nvl, who_buf);

	if (who != NULL)
	(void) snprintf(who_buf, sizeof (who_buf),
	"%c%c$%s", set_type, locality, who);
	else
	(void) snprintf(who_buf, sizeof (who_buf),
	"%c%c$", set_type, locality);
	(void) nvlist_add_boolean(top_nvl, who_buf);
	}
	}
	}

	static int
	construct_fsacl_list(boolean_t un, struct allow_opts opts, nvlist_t *nvlp)
	{
	if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0)
	nomem();

	if (opts->set) {
	store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local,
	opts->descend, opts->who, opts->perms, *nvlp);
	} else if (opts->create) {
	store_allow_perm(ZFS_DELEG_CREATE, opts->local,
	opts->descend, NULL, opts->perms, *nvlp);
	} else if (opts->everyone) {
	store_allow_perm(ZFS_DELEG_EVERYONE, opts->local,
	opts->descend, NULL, opts->perms, *nvlp);
	} else {
	char *curr = opts->who;
	char *end = curr + strlen(curr);

	while (curr < end) {
	const char *who;
	zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN;
	char *endch;
	char *delim = strchr(curr, ',');
	char errbuf[256];
	char id[64];
	struct passwd *p = NULL;
	struct group *g = NULL;

	uid_t rid;
	if (delim == NULL)
	delim = end;
	else
	*delim = '\0';

	rid = (uid_t)strtol(curr, &endch, 0);
	if (opts->user) {
	who_type = ZFS_DELEG_USER;
	if (*endch != '\0')
	p = getpwnam(curr);
	else
	p = getpwuid(rid);

	if (p != NULL)
	rid = p->pw_uid;
	else if (*endch != '\0') {
	(void) snprintf(errbuf, 256, gettext(
	"invalid user %s\n"), curr);
	allow_usage(un, B_TRUE, errbuf);
	}
	} else if (opts->group) {
	who_type = ZFS_DELEG_GROUP;
	if (*endch != '\0')
	g = getgrnam(curr);
	else
	g = getgrgid(rid);

	if (g != NULL)
	rid = g->gr_gid;
	else if (*endch != '\0') {
	(void) snprintf(errbuf, 256, gettext(
	"invalid group %s\n"), curr);
	allow_usage(un, B_TRUE, errbuf);
	}
	} else {
	if (*endch != '\0') {
	p = getpwnam(curr);
	} else {
	p = getpwuid(rid);
	}

	if (p == NULL) {
	if (*endch != '\0') {
	g = getgrnam(curr);
	} else {
	g = getgrgid(rid);
	}
	}

	if (p != NULL) {
	who_type = ZFS_DELEG_USER;
	rid = p->pw_uid;
	} else if (g != NULL) {
	who_type = ZFS_DELEG_GROUP;
	rid = g->gr_gid;
	} else {
	(void) snprintf(errbuf, 256, gettext(
	"invalid user/group %s\n"), curr);
	allow_usage(un, B_TRUE, errbuf);
	}
	}

	(void) sprintf(id, "%u", rid);
	who = id;

	store_allow_perm(who_type, opts->local,
	opts->descend, who, opts->perms, *nvlp);
	curr = delim + 1;
	}
	}

	return (0);
	}

	static void
	print_set_creat_perms(uu_avl_t *who_avl)
	{
	const char *sc_title[] = {
	gettext("Permission sets:\n"),
	gettext("Create time permissions:\n"),
	NULL
	};
	who_perm_node_t *who_node = NULL;
	int prev_weight = -1;

	for (who_node = uu_avl_first(who_avl); who_node != NULL;
	who_node = uu_avl_next(who_avl, who_node)) {
	uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
	zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
	const char *who_name = who_node->who_perm.who_name;
	int weight = who_type2weight(who_type);
	boolean_t first = B_TRUE;
	deleg_perm_node_t *deleg_node;

	if (prev_weight != weight) {
	(void) printf("%s", sc_title[weight]);
	prev_weight = weight;
	}

	if (who_name == NULL \|\| strnlen(who_name, 1) == 0)
	(void) printf("\t");
	else
	(void) printf("\t%s ", who_name);

	for (deleg_node = uu_avl_first(avl); deleg_node != NULL;
	deleg_node = uu_avl_next(avl, deleg_node)) {
	if (first) {
	(void) printf("%s",
	deleg_node->dpn_perm.dp_name);
	first = B_FALSE;
	} else
	(void) printf(",%s",
	deleg_node->dpn_perm.dp_name);
	}

	(void) printf("\n");
	}
	}

	static void
	print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend,
	const char *title)
	{
	who_perm_node_t *who_node = NULL;
	boolean_t prt_title = B_TRUE;
	uu_avl_walk_t *walk;

	if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL)
	nomem();

	while ((who_node = uu_avl_walk_next(walk)) != NULL) {
	const char *who_name = who_node->who_perm.who_name;
	const char *nice_who_name = who_node->who_perm.who_ug_name;
	uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
	zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
	char delim = ' ';
	deleg_perm_node_t *deleg_node;
	boolean_t prt_who = B_TRUE;

	for (deleg_node = uu_avl_first(avl);
	deleg_node != NULL;
	deleg_node = uu_avl_next(avl, deleg_node)) {
	if (local != deleg_node->dpn_perm.dp_local \|\|
	descend != deleg_node->dpn_perm.dp_descend)
	continue;

	if (prt_who) {
	const char *who = NULL;
	if (prt_title) {
	prt_title = B_FALSE;
	(void) printf("%s", title);
	}

	switch (who_type) {
	case ZFS_DELEG_USER_SETS:
	case ZFS_DELEG_USER:
	who = gettext("user");
	if (nice_who_name)
	who_name = nice_who_name;
	break;
	case ZFS_DELEG_GROUP_SETS:
	case ZFS_DELEG_GROUP:
	who = gettext("group");
	if (nice_who_name)
	who_name = nice_who_name;
	break;
	case ZFS_DELEG_EVERYONE_SETS:
	case ZFS_DELEG_EVERYONE:
	who = gettext("everyone");
	who_name = NULL;
	break;

	default:
	assert(who != NULL);
	}

	prt_who = B_FALSE;
	if (who_name == NULL)
	(void) printf("\t%s", who);
	else
	(void) printf("\t%s %s", who, who_name);
	}

	(void) printf("%c%s", delim,
	deleg_node->dpn_perm.dp_name);
	delim = ',';
	}

	if (!prt_who)
	(void) printf("\n");
	}

	uu_avl_walk_end(walk);
	}

	static void
	print_fs_perms(fs_perm_set_t *fspset)
	{
	fs_perm_node_t *node = NULL;
	char buf[MAXNAMELEN + 32];
	const char *dsname = buf;

	for (node = uu_list_first(fspset->fsps_list); node != NULL;
	node = uu_list_next(fspset->fsps_list, node)) {
	uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl;
	uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl;
	int left = 0;

	(void) snprintf(buf, sizeof (buf),
	gettext("---- Permissions on %s "),
	node->fspn_fsperm.fsp_name);
	(void) printf("%s", dsname);
	left = 70 - strlen(buf);
	while (left-- > 0)
	(void) printf("-");
	(void) printf("\n");

	print_set_creat_perms(sc_avl);
	print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE,
	gettext("Local permissions:\n"));
	print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE,
	gettext("Descendent permissions:\n"));
	print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE,
	gettext("Local+Descendent permissions:\n"));
	}
	}

	static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL };

	struct deleg_perms {
	boolean_t un;
	nvlist_t *nvl;
	};

	static int
	set_deleg_perms(zfs_handle_t zhp, void data)
	{
	struct deleg_perms perms = (struct deleg_perms )data;
	zfs_type_t zfs_type = zfs_get_type(zhp);

	if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME)
	return (0);

	return (zfs_set_fsacl(zhp, perms->un, perms->nvl));
	}

	static int
	zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un)
	{
	zfs_handle_t *zhp;
	nvlist_t *perm_nvl = NULL;
	nvlist_t *update_perm_nvl = NULL;
	int error = 1;
	int c;
	struct allow_opts opts = { 0 };

	const char *optstr = un ? "ldugecsrh" : "ldugecsh";

	/* check opts */
	while ((c = getopt(argc, argv, optstr)) != -1) {
	switch (c) {
	case 'l':
	opts.local = B_TRUE;
	break;
	case 'd':
	opts.descend = B_TRUE;
	break;
	case 'u':
	opts.user = B_TRUE;
	break;
	case 'g':
	opts.group = B_TRUE;
	break;
	case 'e':
	opts.everyone = B_TRUE;
	break;
	case 's':
	opts.set = B_TRUE;
	break;
	case 'c':
	opts.create = B_TRUE;
	break;
	case 'r':
	opts.recursive = B_TRUE;
	break;
	case ':':
	(void) fprintf(stderr, gettext("missing argument for "
	"'%c' option\n"), optopt);
	usage(B_FALSE);
	break;
	case 'h':
	opts.prt_usage = B_TRUE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* check arguments */
	parse_allow_args(argc, argv, un, &opts);

	/* try to open the dataset */
	if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM \|
	ZFS_TYPE_VOLUME)) == NULL) {
	(void) fprintf(stderr, "Failed to open dataset: %s\n",
	opts.dataset);
	return (-1);
	}

	if (zfs_get_fsacl(zhp, &perm_nvl) != 0)
	goto cleanup2;

	fs_perm_set_init(&fs_perm_set);
	if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) {
	(void) fprintf(stderr, "Failed to parse fsacl permissions\n");
	goto cleanup1;
	}

	if (opts.prt_perms)
	print_fs_perms(&fs_perm_set);
	else {
	(void) construct_fsacl_list(un, &opts, &update_perm_nvl);
	if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0)
	goto cleanup0;

	if (un && opts.recursive) {
	struct deleg_perms data = { un, update_perm_nvl };
	if (zfs_iter_filesystems(zhp, set_deleg_perms,
	&data) != 0)
	goto cleanup0;
	}
	}

	error = 0;

	cleanup0:
	nvlist_free(perm_nvl);
	nvlist_free(update_perm_nvl);
	cleanup1:
	fs_perm_set_fini(&fs_perm_set);
	cleanup2:
	zfs_close(zhp);

	return (error);
	}

	static int
	zfs_do_allow(int argc, char **argv)
	{
	return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE));
	}

	static int
	zfs_do_unallow(int argc, char **argv)
	{
	return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE));
	}

	static int
	zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding)
	{
	int errors = 0;
	int i;
	const char *tag;
	boolean_t recursive = B_FALSE;
	const char *opts = holding ? "rt" : "r";
	int c;

	/* check options */
	while ((c = getopt(argc, argv, opts)) != -1) {
	switch (c) {
	case 'r':
	recursive = B_TRUE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* check number of arguments */
	if (argc < 2)
	usage(B_FALSE);

	tag = argv[0];
	--argc;
	++argv;

	if (holding && tag[0] == '.') {
	/* tags starting with '.' are reserved for libzfs */
	(void) fprintf(stderr, gettext("tag may not start with '.'\n"));
	usage(B_FALSE);
	}

	for (i = 0; i < argc; ++i) {
	zfs_handle_t *zhp;
	char parent[ZFS_MAX_DATASET_NAME_LEN];
	const char *delim;
	char *path = argv[i];

	delim = strchr(path, '@');
	if (delim == NULL) {
	(void) fprintf(stderr,
	gettext("'%s' is not a snapshot\n"), path);
	++errors;
	continue;
	}
	(void) strncpy(parent, path, delim - path);
	parent[delim - path] = '\0';

	zhp = zfs_open(g_zfs, parent,
	ZFS_TYPE_FILESYSTEM \| ZFS_TYPE_VOLUME);
	if (zhp == NULL) {
	++errors;
	continue;
	}
	if (holding) {
	if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0)
	++errors;
	} else {
	if (zfs_release(zhp, delim+1, tag, recursive) != 0)
	++errors;
	}
	zfs_close(zhp);
	}

	return (errors != 0);
	}

	/*
	* zfs hold [-r] [-t] <tag> <snap> ...
	*
	* -r Recursively hold
	*
	* Apply a user-hold with the given tag to the list of snapshots.
	*/
	static int
	zfs_do_hold(int argc, char **argv)
	{
	return (zfs_do_hold_rele_impl(argc, argv, B_TRUE));
	}

	/*
	* zfs release [-r] <tag> <snap> ...
	*
	* -r Recursively release
	*
	* Release a user-hold with the given tag from the list of snapshots.
	*/
	static int
	zfs_do_release(int argc, char **argv)
	{
	return (zfs_do_hold_rele_impl(argc, argv, B_FALSE));
	}

	typedef struct holds_cbdata {
	boolean_t cb_recursive;
	const char *cb_snapname;
	nvlist_t **cb_nvlp;
	size_t cb_max_namelen;
	size_t cb_max_taglen;
	} holds_cbdata_t;

	#define STRFTIME_FMT_STR "%a %b %e %H:%M %Y"
	#define DATETIME_BUF_LEN (32)
	/*
	*
	*/
	static void
	print_holds(boolean_t scripted, int nwidth, int tagwidth, nvlist_t *nvl)
	{
	int i;
	nvpair_t *nvp = NULL;
	char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" };
	const char *col;

	if (!scripted) {
	for (i = 0; i < 3; i++) {
	col = gettext(hdr_cols[i]);
	if (i < 2)
	(void) printf("%-*s ", i ? tagwidth : nwidth,
	col);
	else
	(void) printf("%s\n", col);
	}
	}

	while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
	char *zname = nvpair_name(nvp);
	nvlist_t *nvl2;
	nvpair_t *nvp2 = NULL;
	(void) nvpair_value_nvlist(nvp, &nvl2);
	while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) {
	char tsbuf[DATETIME_BUF_LEN];
	char *tagname = nvpair_name(nvp2);
	uint64_t val = 0;
	time_t time;
	struct tm t;

	(void) nvpair_value_uint64(nvp2, &val);
	time = (time_t)val;
	(void) localtime_r(&time, &t);
	(void) strftime(tsbuf, DATETIME_BUF_LEN,
	gettext(STRFTIME_FMT_STR), &t);

	if (scripted) {
	(void) printf("%s\t%s\t%s\n", zname,
	tagname, tsbuf);
	} else {
	(void) printf("%-s %-s %s\n", nwidth,
	zname, tagwidth, tagname, tsbuf);
	}
	}
	}
	}

	/*
	* Generic callback function to list a dataset or snapshot.
	*/
	static int
	holds_callback(zfs_handle_t zhp, void data)
	{
	holds_cbdata_t *cbp = data;
	nvlist_t top_nvl = cbp->cb_nvlp;
	nvlist_t *nvl = NULL;
	nvpair_t *nvp = NULL;
	const char *zname = zfs_get_name(zhp);
	size_t znamelen = strlen(zname);

	if (cbp->cb_recursive) {
	const char *snapname;
	char *delim = strchr(zname, '@');
	if (delim == NULL)
	return (0);

	snapname = delim + 1;
	if (strcmp(cbp->cb_snapname, snapname))
	return (0);
	}

	if (zfs_get_holds(zhp, &nvl) != 0)
	return (-1);

	if (znamelen > cbp->cb_max_namelen)
	cbp->cb_max_namelen = znamelen;

	while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
	const char *tag = nvpair_name(nvp);
	size_t taglen = strlen(tag);
	if (taglen > cbp->cb_max_taglen)
	cbp->cb_max_taglen = taglen;
	}

	return (nvlist_add_nvlist(top_nvl, zname, nvl));
	}

	/*
	* zfs holds [-rH] <snap> ...
	*
	* -r Lists holds that are set on the named snapshots recursively.
	* -H Scripted mode; elide headers and separate columns by tabs.
	*/
	static int
	zfs_do_holds(int argc, char **argv)
	{
	int errors = 0;
	int c;
	int i;
	boolean_t scripted = B_FALSE;
	boolean_t recursive = B_FALSE;
	const char *opts = "rH";
	nvlist_t *nvl;

	int types = ZFS_TYPE_SNAPSHOT;
	holds_cbdata_t cb = { 0 };

	int limit = 0;
	int ret = 0;
	int flags = 0;

	/* check options */
	while ((c = getopt(argc, argv, opts)) != -1) {
	switch (c) {
	case 'r':
	recursive = B_TRUE;
	break;
	case 'H':
	scripted = B_TRUE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	if (recursive) {
	types \|= ZFS_TYPE_FILESYSTEM \| ZFS_TYPE_VOLUME;
	flags \|= ZFS_ITER_RECURSE;
	}

	argc -= optind;
	argv += optind;

	/* check number of arguments */
	if (argc < 1)
	usage(B_FALSE);

	if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
	nomem();

	for (i = 0; i < argc; ++i) {
	char *snapshot = argv[i];
	const char *delim;
	const char *snapname;

	delim = strchr(snapshot, '@');
	if (delim == NULL) {
	(void) fprintf(stderr,
	gettext("'%s' is not a snapshot\n"), snapshot);
	++errors;
	continue;
	}
	snapname = delim + 1;
	if (recursive)
	snapshot[delim - snapshot] = '\0';

	cb.cb_recursive = recursive;
	cb.cb_snapname = snapname;
	cb.cb_nvlp = &nvl;

	/*
	* 1. collect holds data, set format options
	*/
	ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit,
	holds_callback, &cb);
	if (ret != 0)
	++errors;
	}

	/*
	* 2. print holds data
	*/
	print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl);

	if (nvlist_empty(nvl))
	(void) fprintf(stderr, gettext("no datasets available\n"));

	nvlist_free(nvl);

	return (0 != errors);
	}

	#define CHECK_SPINNER 30
	#define SPINNER_TIME 3 /* seconds */
	#define MOUNT_TIME 1 /* seconds */

	typedef struct get_all_state {
	boolean_t ga_verbose;
	get_all_cb_t *ga_cbp;
	} get_all_state_t;

	static int
	get_one_dataset(zfs_handle_t zhp, void data)
	{
	static char *spin[] = { "-", "\\", "\|", "/" };
	static int spinval = 0;
	static int spincheck = 0;
	static time_t last_spin_time = (time_t)0;
	get_all_state_t *state = data;
	zfs_type_t type = zfs_get_type(zhp);

	if (state->ga_verbose) {
	if (--spincheck < 0) {
	time_t now = time(NULL);
	if (last_spin_time + SPINNER_TIME < now) {
	update_progress(spin[spinval++ % 4]);
	last_spin_time = now;
	}
	spincheck = CHECK_SPINNER;
	}
	}

	/*
	* Iterate over any nested datasets.
	*/
	if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) {
	zfs_close(zhp);
	return (1);
	}

	/*
	* Skip any datasets whose type does not match.
	*/
	if ((type & ZFS_TYPE_FILESYSTEM) == 0) {
	zfs_close(zhp);
	return (0);
	}
	libzfs_add_handle(state->ga_cbp, zhp);
	assert(state->ga_cbp->cb_used <= state->ga_cbp->cb_alloc);

	return (0);
	}

	static void
	get_all_datasets(get_all_cb_t *cbp, boolean_t verbose)
	{
	get_all_state_t state = {
	.ga_verbose = verbose,
	.ga_cbp = cbp
	};

	if (verbose)
	set_progress_header(gettext("Reading ZFS config"));
	(void) zfs_iter_root(g_zfs, get_one_dataset, &state);

	if (verbose)
	finish_progress(gettext("done."));
	}

	/*
	* Generic callback for sharing or mounting filesystems. Because the code is so
	* similar, we have a common function with an extra parameter to determine which
	* mode we are using.
	*/
	typedef enum { OP_SHARE, OP_MOUNT } share_mount_op_t;

	typedef struct share_mount_state {
	share_mount_op_t sm_op;
	boolean_t sm_verbose;
	int sm_flags;
	char *sm_options;
	char sm_proto; / only valid for OP_SHARE */
	pthread_mutex_t sm_lock; /* protects the remaining fields */
	uint_t sm_total; /* number of filesystems to process */
	uint_t sm_done; /* number of filesystems processed */
	int sm_status; /* -1 if any of the share/mount operations failed */
	} share_mount_state_t;

	/*
	* Share or mount a dataset.
	*/
	static int
	share_mount_one(zfs_handle_t zhp, int op, int flags, char protocol,
	boolean_t explicit, const char *options)
	{
	char mountpoint[ZFS_MAXPROPLEN];
	char shareopts[ZFS_MAXPROPLEN];
	char smbshareopts[ZFS_MAXPROPLEN];
	const char *cmdname = op == OP_SHARE ? "share" : "mount";
	struct mnttab mnt;
	uint64_t zoned, canmount;
	boolean_t shared_nfs, shared_smb;

	assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM);

	/*
	* Check to make sure we can mount/share this dataset. If we
	* are in the global zone and the filesystem is exported to a
	* local zone, or if we are in a local zone and the
	* filesystem is not exported, then it is an error.
	*/
	zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED);

	if (zoned && getzoneid() == GLOBAL_ZONEID) {
	if (!explicit)
	return (0);

	(void) fprintf(stderr, gettext("cannot %s '%s': "
	"dataset is exported to a local zone\n"), cmdname,
	zfs_get_name(zhp));
	return (1);

	} else if (!zoned && getzoneid() != GLOBAL_ZONEID) {
	if (!explicit)
	return (0);

	(void) fprintf(stderr, gettext("cannot %s '%s': "
	"permission denied\n"), cmdname,
	zfs_get_name(zhp));
	return (1);
	}

	/*
	* Ignore any filesystems which don't apply to us. This
	* includes those with a legacy mountpoint, or those with
	* legacy share options.
	*/
	verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint,
	sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0);
	verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts,
	sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0);
	verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts,
	sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0);

	if (op == OP_SHARE && strcmp(shareopts, "off") == 0 &&
	strcmp(smbshareopts, "off") == 0) {
	if (!explicit)
	return (0);

	(void) fprintf(stderr, gettext("cannot share '%s': "
	"legacy share\n"), zfs_get_name(zhp));
	(void) fprintf(stderr, gettext("use exports(5) or "
	"smb.conf(5) to share this filesystem, or set "
	"the sharenfs or sharesmb property\n"));
	return (1);
	}

	/*
	* We cannot share or mount legacy filesystems. If the
	* shareopts is non-legacy but the mountpoint is legacy, we
	* treat it as a legacy share.
	*/
	if (strcmp(mountpoint, "legacy") == 0) {
	if (!explicit)
	return (0);

	(void) fprintf(stderr, gettext("cannot %s '%s': "
	"legacy mountpoint\n"), cmdname, zfs_get_name(zhp));
	(void) fprintf(stderr, gettext("use %s(8) to "
	"%s this filesystem\n"), cmdname, cmdname);
	return (1);
	}

	if (strcmp(mountpoint, "none") == 0) {
	if (!explicit)
	return (0);

	(void) fprintf(stderr, gettext("cannot %s '%s': no "
	"mountpoint set\n"), cmdname, zfs_get_name(zhp));
	return (1);
	}

	/*
	* canmount explicit outcome
	* on no pass through
	* on yes pass through
	* off no return 0
	* off yes display error, return 1
	* noauto no return 0
	* noauto yes pass through
	*/
	canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT);
	if (canmount == ZFS_CANMOUNT_OFF) {
	if (!explicit)
	return (0);

	(void) fprintf(stderr, gettext("cannot %s '%s': "
	"'canmount' property is set to 'off'\n"), cmdname,
	zfs_get_name(zhp));
	return (1);
	} else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) {
	/*
	* When performing a 'zfs mount -a', we skip any mounts for
	* datasets that have 'noauto' set. Sharing a dataset with
	* 'noauto' set is only allowed if it's mounted.
	*/
	if (op == OP_MOUNT)
	return (0);
	if (op == OP_SHARE && !zfs_is_mounted(zhp, NULL)) {
	/* also purge it from existing exports */
	zfs_unshareall_bypath(zhp, mountpoint);
	return (0);
	}
	}

	/*
	* If this filesystem is encrypted and does not have
	* a loaded key, we can not mount it.
	*/
	if ((flags & MS_CRYPT) == 0 &&
	zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) != ZIO_CRYPT_OFF &&
	zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS) ==
	ZFS_KEYSTATUS_UNAVAILABLE) {
	if (!explicit)
	return (0);

	(void) fprintf(stderr, gettext("cannot %s '%s': "
	"encryption key not loaded\n"), cmdname, zfs_get_name(zhp));
	return (1);
	}

	/*
	* If this filesystem is inconsistent and has a receive resume
	* token, we can not mount it.
	*/
	if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) &&
	zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
	NULL, 0, NULL, NULL, 0, B_TRUE) == 0) {
	if (!explicit)
	return (0);

	(void) fprintf(stderr, gettext("cannot %s '%s': "
	"Contains partially-completed state from "
	"\"zfs receive -s\", which can be resumed with "
	"\"zfs send -t\"\n"),
	cmdname, zfs_get_name(zhp));
	return (1);
	}

	if (zfs_prop_get_int(zhp, ZFS_PROP_REDACTED) && !(flags & MS_FORCE)) {
	if (!explicit)
	return (0);

	(void) fprintf(stderr, gettext("cannot %s '%s': "
	"Dataset is not complete, was created by receiving "
	"a redacted zfs send stream.\n"), cmdname,
	zfs_get_name(zhp));
	return (1);
	}

	/*
	* At this point, we have verified that the mountpoint and/or
	* shareopts are appropriate for auto management. If the
	* filesystem is already mounted or shared, return (failing
	* for explicit requests); otherwise mount or share the
	* filesystem.
	*/
	switch (op) {
	case OP_SHARE:

	shared_nfs = zfs_is_shared_nfs(zhp, NULL);
	shared_smb = zfs_is_shared_smb(zhp, NULL);

	if ((shared_nfs && shared_smb) \|\|
	(shared_nfs && strcmp(shareopts, "on") == 0 &&
	strcmp(smbshareopts, "off") == 0) \|\|
	(shared_smb && strcmp(smbshareopts, "on") == 0 &&
	strcmp(shareopts, "off") == 0)) {
	if (!explicit)
	return (0);

	(void) fprintf(stderr, gettext("cannot share "
	"'%s': filesystem already shared\n"),
	zfs_get_name(zhp));
	return (1);
	}

	if (!zfs_is_mounted(zhp, NULL) &&
	zfs_mount(zhp, NULL, flags) != 0)
	return (1);

	if (protocol == NULL) {
	if (zfs_shareall(zhp) != 0)
	return (1);
	} else if (strcmp(protocol, "nfs") == 0) {
	if (zfs_share_nfs(zhp))
	return (1);
	} else if (strcmp(protocol, "smb") == 0) {
	if (zfs_share_smb(zhp))
	return (1);
	} else {
	(void) fprintf(stderr, gettext("cannot share "
	"'%s': invalid share type '%s' "
	"specified\n"),
	zfs_get_name(zhp), protocol);
	return (1);
	}

	break;

	case OP_MOUNT:
	if (options == NULL)
	mnt.mnt_mntopts = "";
	else
	mnt.mnt_mntopts = (char *)options;

	if (!hasmntopt(&mnt, MNTOPT_REMOUNT) &&
	zfs_is_mounted(zhp, NULL)) {
	if (!explicit)
	return (0);

	(void) fprintf(stderr, gettext("cannot mount "
	"'%s': filesystem already mounted\n"),
	zfs_get_name(zhp));
	return (1);
	}

	if (zfs_mount(zhp, options, flags) != 0)
	return (1);
	break;
	}

	return (0);
	}

	/*
	* Reports progress in the form "(current/total)". Not thread-safe.
	*/
	static void
	report_mount_progress(int current, int total)
	{
	static time_t last_progress_time = 0;
	time_t now = time(NULL);
	char info[32];

	/* display header if we're here for the first time */
	if (current == 1) {
	set_progress_header(gettext("Mounting ZFS filesystems"));
	} else if (current != total && last_progress_time + MOUNT_TIME >= now) {
	/* too soon to report again */
	return;
	}

	last_progress_time = now;

	(void) sprintf(info, "(%d/%d)", current, total);

	if (current == total)
	finish_progress(info);
	else
	update_progress(info);
	}

	/*
	* zfs_foreach_mountpoint() callback that mounts or shares one filesystem and
	* updates the progress meter.
	*/
	static int
	share_mount_one_cb(zfs_handle_t zhp, void arg)
	{
	share_mount_state_t *sms = arg;
	int ret;

	ret = share_mount_one(zhp, sms->sm_op, sms->sm_flags, sms->sm_proto,
	B_FALSE, sms->sm_options);

	pthread_mutex_lock(&sms->sm_lock);
	if (ret != 0)
	sms->sm_status = ret;
	sms->sm_done++;
	if (sms->sm_verbose)
	report_mount_progress(sms->sm_done, sms->sm_total);
	pthread_mutex_unlock(&sms->sm_lock);
	return (ret);
	}

	static void
	append_options(char mntopts, char newopts)
	{
	int len = strlen(mntopts);

	/* original length plus new string to append plus 1 for the comma */
	if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) {
	(void) fprintf(stderr, gettext("the opts argument for "
	"'%s' option is too long (more than %d chars)\n"),
	"-o", MNT_LINE_MAX);
	usage(B_FALSE);
	}

	if (*mntopts)
	mntopts[len++] = ',';

	(void) strcpy(&mntopts[len], newopts);
	}

	static int
	share_mount(int op, int argc, char **argv)
	{
	int do_all = 0;
	boolean_t verbose = B_FALSE;
	int c, ret = 0;
	char *options = NULL;
	int flags = 0;

	/* check options */
	while ((c = getopt(argc, argv, op == OP_MOUNT ? ":alvo:Of" : "al"))
	!= -1) {
	switch (c) {
	case 'a':
	do_all = 1;
	break;
	case 'v':
	verbose = B_TRUE;
	break;
	case 'l':
	flags \|= MS_CRYPT;
	break;
	case 'o':
	if (*optarg == '\0') {
	(void) fprintf(stderr, gettext("empty mount "
	"options (-o) specified\n"));
	usage(B_FALSE);
	}

	if (options == NULL)
	options = safe_malloc(MNT_LINE_MAX + 1);

	/* option validation is done later */
	append_options(options, optarg);
	break;
	case 'O':
	flags \|= MS_OVERLAY;
	break;
	case 'f':
	flags \|= MS_FORCE;
	break;
	case ':':
	(void) fprintf(stderr, gettext("missing argument for "
	"'%c' option\n"), optopt);
	usage(B_FALSE);
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* check number of arguments */
	if (do_all) {
	char *protocol = NULL;

	if (op == OP_SHARE && argc > 0) {
	if (strcmp(argv[0], "nfs") != 0 &&
	strcmp(argv[0], "smb") != 0) {
	(void) fprintf(stderr, gettext("share type "
	"must be 'nfs' or 'smb'\n"));
	usage(B_FALSE);
	}
	protocol = argv[0];
	argc--;
	argv++;
	}

	if (argc != 0) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	start_progress_timer();
	get_all_cb_t cb = { 0 };
	get_all_datasets(&cb, verbose);

	if (cb.cb_used == 0) {
	free(options);
	return (0);
	}

	share_mount_state_t share_mount_state = { 0 };
	share_mount_state.sm_op = op;
	share_mount_state.sm_verbose = verbose;
	share_mount_state.sm_flags = flags;
	share_mount_state.sm_options = options;
	share_mount_state.sm_proto = protocol;
	share_mount_state.sm_total = cb.cb_used;
	pthread_mutex_init(&share_mount_state.sm_lock, NULL);

	/*
	* libshare isn't mt-safe, so only do the operation in parallel
	* if we're mounting. Additionally, the key-loading option must
	* be serialized so that we can prompt the user for their keys
	* in a consistent manner.
	*/
	zfs_foreach_mountpoint(g_zfs, cb.cb_handles, cb.cb_used,
	share_mount_one_cb, &share_mount_state,
	op == OP_MOUNT && !(flags & MS_CRYPT));
	zfs_commit_all_shares();

	ret = share_mount_state.sm_status;

	for (int i = 0; i < cb.cb_used; i++)
	zfs_close(cb.cb_handles[i]);
	free(cb.cb_handles);
	} else if (argc == 0) {
	FILE *mnttab;
	struct mnttab entry;

	if ((op == OP_SHARE) \|\| (options != NULL)) {
	(void) fprintf(stderr, gettext("missing filesystem "
	"argument (specify -a for all)\n"));
	usage(B_FALSE);
	}

	/*
	* When mount is given no arguments, go through
	* /proc/self/mounts and display any active ZFS mounts.
	* We hide any snapshots, since they are controlled
	* automatically.
	*/

	if ((mnttab = fopen(MNTTAB, "re")) == NULL) {
	free(options);
	return (ENOENT);
	}

	while (getmntent(mnttab, &entry) == 0) {
	if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 \|\|
	strchr(entry.mnt_special, '@') != NULL)
	continue;

	(void) printf("%-30s %s\n", entry.mnt_special,
	entry.mnt_mountp);
	}

	(void) fclose(mnttab);
	} else {
	zfs_handle_t *zhp;

	if (argc > 1) {
	(void) fprintf(stderr,
	gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	if ((zhp = zfs_open(g_zfs, argv[0],
	ZFS_TYPE_FILESYSTEM)) == NULL) {
	ret = 1;
	} else {
	ret = share_mount_one(zhp, op, flags, NULL, B_TRUE,
	options);
	zfs_commit_all_shares();
	zfs_close(zhp);
	}
	}

	free(options);
	return (ret);
	}

	/*
	* zfs mount -a [nfs]
	* zfs mount filesystem
	*
	* Mount all filesystems, or mount the given filesystem.
	*/
	static int
	zfs_do_mount(int argc, char **argv)
	{
	return (share_mount(OP_MOUNT, argc, argv));
	}

	/*
	* zfs share -a [nfs \| smb]
	* zfs share filesystem
	*
	* Share all filesystems, or share the given filesystem.
	*/
	static int
	zfs_do_share(int argc, char **argv)
	{
	return (share_mount(OP_SHARE, argc, argv));
	}

	typedef struct unshare_unmount_node {
	zfs_handle_t *un_zhp;
	char *un_mountp;
	uu_avl_node_t un_avlnode;
	} unshare_unmount_node_t;

	/* ARGSUSED */
	static int
	unshare_unmount_compare(const void larg, const void rarg, void *unused)
	{
	const unshare_unmount_node_t *l = larg;
	const unshare_unmount_node_t *r = rarg;

	return (strcmp(l->un_mountp, r->un_mountp));
	}

	/*
	* Convenience routine used by zfs_do_umount() and manual_unmount(). Given an
	* absolute path, find the entry /proc/self/mounts, verify that it's a
	* ZFS filesystem, and unmount it appropriately.
	*/
	static int
	unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual)
	{
	zfs_handle_t *zhp;
	int ret = 0;
	struct stat64 statbuf;
	struct extmnttab entry;
	const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount";
	ino_t path_inode;

	/*
	* Search for the given (major,minor) pair in the mount table.
	*/

	if (getextmntent(path, &entry, &statbuf) != 0) {
	if (op == OP_SHARE) {
	(void) fprintf(stderr, gettext("cannot %s '%s': not "
	"currently mounted\n"), cmdname, path);
	return (1);
	}
	(void) fprintf(stderr, gettext("warning: %s not in"
	"/proc/self/mounts\n"), path);
	if ((ret = umount2(path, flags)) != 0)
	(void) fprintf(stderr, gettext("%s: %s\n"), path,
	strerror(errno));
	return (ret != 0);
	}
	path_inode = statbuf.st_ino;

	if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) {
	(void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS "
	"filesystem\n"), cmdname, path);
	return (1);
	}

	if ((zhp = zfs_open(g_zfs, entry.mnt_special,
	ZFS_TYPE_FILESYSTEM)) == NULL)
	return (1);

	ret = 1;
	if (stat64(entry.mnt_mountp, &statbuf) != 0) {
	(void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
	cmdname, path, strerror(errno));
	goto out;
	} else if (statbuf.st_ino != path_inode) {
	(void) fprintf(stderr, gettext("cannot "
	"%s '%s': not a mountpoint\n"), cmdname, path);
	goto out;
	}

	if (op == OP_SHARE) {
	char nfs_mnt_prop[ZFS_MAXPROPLEN];
	char smbshare_prop[ZFS_MAXPROPLEN];

	verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop,
	sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0);
	verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop,
	sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0);

	if (strcmp(nfs_mnt_prop, "off") == 0 &&
	strcmp(smbshare_prop, "off") == 0) {
	(void) fprintf(stderr, gettext("cannot unshare "
	"'%s': legacy share\n"), path);
	(void) fprintf(stderr, gettext("use exportfs(8) "
	"or smbcontrol(1) to unshare this filesystem\n"));
	} else if (!zfs_is_shared(zhp)) {
	(void) fprintf(stderr, gettext("cannot unshare '%s': "
	"not currently shared\n"), path);
	} else {
	ret = zfs_unshareall_bypath(zhp, path);
	zfs_commit_all_shares();
	}
	} else {
	char mtpt_prop[ZFS_MAXPROPLEN];

	verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop,
	sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0);

	if (is_manual) {
	ret = zfs_unmount(zhp, NULL, flags);
	} else if (strcmp(mtpt_prop, "legacy") == 0) {
	(void) fprintf(stderr, gettext("cannot unmount "
	"'%s': legacy mountpoint\n"),
	zfs_get_name(zhp));
	(void) fprintf(stderr, gettext("use umount(8) "
	"to unmount this filesystem\n"));
	} else {
	ret = zfs_unmountall(zhp, flags);
	}
	}

	out:
	zfs_close(zhp);

	return (ret != 0);
	}

	/*
	* Generic callback for unsharing or unmounting a filesystem.
	*/
	static int
	unshare_unmount(int op, int argc, char **argv)
	{
	int do_all = 0;
	int flags = 0;
	int ret = 0;
	int c;
	zfs_handle_t *zhp;
	char nfs_mnt_prop[ZFS_MAXPROPLEN];
	char sharesmb[ZFS_MAXPROPLEN];

	/* check options */
	while ((c = getopt(argc, argv, op == OP_SHARE ? ":a" : "afu")) != -1) {
	switch (c) {
	case 'a':
	do_all = 1;
	break;
	case 'f':
	flags \|= MS_FORCE;
	break;
	case 'u':
	flags \|= MS_CRYPT;
	break;
	case ':':
	(void) fprintf(stderr, gettext("missing argument for "
	"'%c' option\n"), optopt);
	usage(B_FALSE);
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	if (do_all) {
	/*
	* We could make use of zfs_for_each() to walk all datasets in
	* the system, but this would be very inefficient, especially
	* since we would have to linearly search /proc/self/mounts for
	* each one. Instead, do one pass through /proc/self/mounts
	* looking for zfs entries and call zfs_unmount() for each one.
	*
	* Things get a little tricky if the administrator has created
	* mountpoints beneath other ZFS filesystems. In this case, we
	* have to unmount the deepest filesystems first. To accomplish
	* this, we place all the mountpoints in an AVL tree sorted by
	* the special type (dataset name), and walk the result in
	* reverse to make sure to get any snapshots first.
	*/
	FILE *mnttab;
	struct mnttab entry;
	uu_avl_pool_t *pool;
	uu_avl_t *tree = NULL;
	unshare_unmount_node_t *node;
	uu_avl_index_t idx;
	uu_avl_walk_t *walk;
	char *protocol = NULL;

	if (op == OP_SHARE && argc > 0) {
	if (strcmp(argv[0], "nfs") != 0 &&
	strcmp(argv[0], "smb") != 0) {
	(void) fprintf(stderr, gettext("share type "
	"must be 'nfs' or 'smb'\n"));
	usage(B_FALSE);
	}
	protocol = argv[0];
	argc--;
	argv++;
	}

	if (argc != 0) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	if (((pool = uu_avl_pool_create("unmount_pool",
	sizeof (unshare_unmount_node_t),
	offsetof(unshare_unmount_node_t, un_avlnode),
	unshare_unmount_compare, UU_DEFAULT)) == NULL) \|\|
	((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL))
	nomem();

	if ((mnttab = fopen(MNTTAB, "re")) == NULL)
	return (ENOENT);

	while (getmntent(mnttab, &entry) == 0) {

	/* ignore non-ZFS entries */
	if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0)
	continue;

	/* ignore snapshots */
	if (strchr(entry.mnt_special, '@') != NULL)
	continue;

	if ((zhp = zfs_open(g_zfs, entry.mnt_special,
	ZFS_TYPE_FILESYSTEM)) == NULL) {
	ret = 1;
	continue;
	}

	/*
	* Ignore datasets that are excluded/restricted by
	* parent pool name.
	*/
	if (zpool_skip_pool(zfs_get_pool_name(zhp))) {
	zfs_close(zhp);
	continue;
	}

	switch (op) {
	case OP_SHARE:
	verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
	nfs_mnt_prop,
	sizeof (nfs_mnt_prop),
	NULL, NULL, 0, B_FALSE) == 0);
	if (strcmp(nfs_mnt_prop, "off") != 0)
	break;
	verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
	nfs_mnt_prop,
	sizeof (nfs_mnt_prop),
	NULL, NULL, 0, B_FALSE) == 0);
	if (strcmp(nfs_mnt_prop, "off") == 0)
	continue;
	break;
	case OP_MOUNT:
	/* Ignore legacy mounts */
	verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT,
	nfs_mnt_prop,
	sizeof (nfs_mnt_prop),
	NULL, NULL, 0, B_FALSE) == 0);
	if (strcmp(nfs_mnt_prop, "legacy") == 0)
	continue;
	/* Ignore canmount=noauto mounts */
	if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) ==
	ZFS_CANMOUNT_NOAUTO)
	continue;
	default:
	break;
	}

	node = safe_malloc(sizeof (unshare_unmount_node_t));
	node->un_zhp = zhp;
	node->un_mountp = safe_strdup(entry.mnt_mountp);

	uu_avl_node_init(node, &node->un_avlnode, pool);

	if (uu_avl_find(tree, node, NULL, &idx) == NULL) {
	uu_avl_insert(tree, node, idx);
	} else {
	zfs_close(node->un_zhp);
	free(node->un_mountp);
	free(node);
	}
	}
	(void) fclose(mnttab);

	/*
	* Walk the AVL tree in reverse, unmounting each filesystem and
	* removing it from the AVL tree in the process.
	*/
	if ((walk = uu_avl_walk_start(tree,
	UU_WALK_REVERSE \| UU_WALK_ROBUST)) == NULL)
	nomem();

	while ((node = uu_avl_walk_next(walk)) != NULL) {
	const char *mntarg = NULL;

	uu_avl_remove(tree, node);
	switch (op) {
	case OP_SHARE:
	if (zfs_unshareall_bytype(node->un_zhp,
	node->un_mountp, protocol) != 0)
	ret = 1;
	break;

	case OP_MOUNT:
	if (zfs_unmount(node->un_zhp,
	mntarg, flags) != 0)
	ret = 1;
	break;
	}

	zfs_close(node->un_zhp);
	free(node->un_mountp);
	free(node);
	}

	if (op == OP_SHARE)
	zfs_commit_shares(protocol);

	uu_avl_walk_end(walk);
	uu_avl_destroy(tree);
	uu_avl_pool_destroy(pool);

	} else {
	if (argc != 1) {
	if (argc == 0)
	(void) fprintf(stderr,
	gettext("missing filesystem argument\n"));
	else
	(void) fprintf(stderr,
	gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	/*
	* We have an argument, but it may be a full path or a ZFS
	* filesystem. Pass full paths off to unmount_path() (shared by
	* manual_unmount), otherwise open the filesystem and pass to
	* zfs_unmount().
	*/
	if (argv[0][0] == '/')
	return (unshare_unmount_path(op, argv[0],
	flags, B_FALSE));

	if ((zhp = zfs_open(g_zfs, argv[0],
	ZFS_TYPE_FILESYSTEM)) == NULL)
	return (1);

	verify(zfs_prop_get(zhp, op == OP_SHARE ?
	ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT,
	nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL,
	NULL, 0, B_FALSE) == 0);

	switch (op) {
	case OP_SHARE:
	verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
	nfs_mnt_prop,
	sizeof (nfs_mnt_prop),
	NULL, NULL, 0, B_FALSE) == 0);
	verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
	sharesmb, sizeof (sharesmb), NULL, NULL,
	0, B_FALSE) == 0);

	if (strcmp(nfs_mnt_prop, "off") == 0 &&
	strcmp(sharesmb, "off") == 0) {
	(void) fprintf(stderr, gettext("cannot "
	"unshare '%s': legacy share\n"),
	zfs_get_name(zhp));
	(void) fprintf(stderr, gettext("use "
	"exports(5) or smb.conf(5) to unshare "
	"this filesystem\n"));
	ret = 1;
	} else if (!zfs_is_shared(zhp)) {
	(void) fprintf(stderr, gettext("cannot "
	"unshare '%s': not currently "
	"shared\n"), zfs_get_name(zhp));
	ret = 1;
	} else if (zfs_unshareall(zhp) != 0) {
	ret = 1;
	}
	break;

	case OP_MOUNT:
	if (strcmp(nfs_mnt_prop, "legacy") == 0) {
	(void) fprintf(stderr, gettext("cannot "
	"unmount '%s': legacy "
	"mountpoint\n"), zfs_get_name(zhp));
	(void) fprintf(stderr, gettext("use "
	"umount(8) to unmount this "
	"filesystem\n"));
	ret = 1;
	} else if (!zfs_is_mounted(zhp, NULL)) {
	(void) fprintf(stderr, gettext("cannot "
	"unmount '%s': not currently "
	"mounted\n"),
	zfs_get_name(zhp));
	ret = 1;
	} else if (zfs_unmountall(zhp, flags) != 0) {
	ret = 1;
	}
	break;
	}

	zfs_close(zhp);
	}

	return (ret);
	}

	/*
	* zfs unmount [-fu] -a
	* zfs unmount [-fu] filesystem
	*
	* Unmount all filesystems, or a specific ZFS filesystem.
	*/
	static int
	zfs_do_unmount(int argc, char **argv)
	{
	return (unshare_unmount(OP_MOUNT, argc, argv));
	}

	/*
	* zfs unshare -a
	* zfs unshare filesystem
	*
	* Unshare all filesystems, or a specific ZFS filesystem.
	*/
	static int
	zfs_do_unshare(int argc, char **argv)
	{
	return (unshare_unmount(OP_SHARE, argc, argv));
	}

	static int
	find_command_idx(char command, int idx)
	{
	int i;

	for (i = 0; i < NCOMMAND; i++) {
	if (command_table[i].name == NULL)
	continue;

	if (strcmp(command, command_table[i].name) == 0) {
	*idx = i;
	return (0);
	}
	}
	return (1);
	}

	static int
	zfs_do_diff(int argc, char **argv)
	{
	zfs_handle_t *zhp;
	int flags = 0;
	char *tosnap = NULL;
	char *fromsnap = NULL;
	char atp, copy;
	int err = 0;
	int c;
	struct sigaction sa;

	while ((c = getopt(argc, argv, "FHt")) != -1) {
	switch (c) {
	case 'F':
	flags \|= ZFS_DIFF_CLASSIFY;
	break;
	case 'H':
	flags \|= ZFS_DIFF_PARSEABLE;
	break;
	case 't':
	flags \|= ZFS_DIFF_TIMESTAMP;
	break;
	default:
	(void) fprintf(stderr,
	gettext("invalid option '%c'\n"), optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	if (argc < 1) {
	(void) fprintf(stderr,
	gettext("must provide at least one snapshot name\n"));
	usage(B_FALSE);
	}

	if (argc > 2) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	fromsnap = argv[0];
	tosnap = (argc == 2) ? argv[1] : NULL;

	copy = NULL;
	if (*fromsnap != '@')
	copy = strdup(fromsnap);
	else if (tosnap)
	copy = strdup(tosnap);
	if (copy == NULL)
	usage(B_FALSE);

	if ((atp = strchr(copy, '@')) != NULL)
	*atp = '\0';

	if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) {
	free(copy);
	return (1);
	}
	free(copy);

	/*
	* Ignore SIGPIPE so that the library can give us
	* information on any failure
	*/
	if (sigemptyset(&sa.sa_mask) == -1) {
	err = errno;
	goto out;
	}
	sa.sa_flags = 0;
	sa.sa_handler = SIG_IGN;
	if (sigaction(SIGPIPE, &sa, NULL) == -1) {
	err = errno;
	goto out;
	}

	err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags);
	out:
	zfs_close(zhp);

	return (err != 0);
	}

	/*
	* zfs bookmark <fs@source>\|<fs#source> <fs#bookmark>
	*
	* Creates a bookmark with the given name from the source snapshot
	* or creates a copy of an existing source bookmark.
	*/
	static int
	zfs_do_bookmark(int argc, char **argv)
	{
	char source, bookname;
	char expbuf[ZFS_MAX_DATASET_NAME_LEN];
	int source_type;
	nvlist_t *nvl;
	int ret = 0;
	int c;

	/* check options */
	while ((c = getopt(argc, argv, "")) != -1) {
	switch (c) {
	case '?':
	(void) fprintf(stderr,
	gettext("invalid option '%c'\n"), optopt);
	goto usage;
	}
	}

	argc -= optind;
	argv += optind;

	/* check number of arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing source argument\n"));
	goto usage;
	}
	if (argc < 2) {
	(void) fprintf(stderr, gettext("missing bookmark argument\n"));
	goto usage;
	}

	source = argv[0];
	bookname = argv[1];

	if (strchr(source, '@') == NULL && strchr(source, '#') == NULL) {
	(void) fprintf(stderr,
	gettext("invalid source name '%s': "
	"must contain a '@' or '#'\n"), source);
	goto usage;
	}
	if (strchr(bookname, '#') == NULL) {
	(void) fprintf(stderr,
	gettext("invalid bookmark name '%s': "
	"must contain a '#'\n"), bookname);
	goto usage;
	}

	/*
	* expand source or bookname to full path:
	* one of them may be specified as short name
	*/
	{
	char **expand;
	char source_short, bookname_short;
	source_short = strpbrk(source, "@#");
	bookname_short = strpbrk(bookname, "#");
	if (source_short == source &&
	bookname_short == bookname) {
	(void) fprintf(stderr, gettext(
	"either source or bookmark must be specified as "
	"full dataset paths"));
	goto usage;
	} else if (source_short != source &&
	bookname_short != bookname) {
	expand = NULL;
	} else if (source_short != source) {
	strlcpy(expbuf, source, sizeof (expbuf));
	expand = &bookname;
	} else if (bookname_short != bookname) {
	strlcpy(expbuf, bookname, sizeof (expbuf));
	expand = &source;
	} else {
	abort();
	}
	if (expand != NULL) {
	strpbrk(expbuf, "@#") = '\0'; / dataset name in buf */
	(void) strlcat(expbuf, *expand, sizeof (expbuf));
	*expand = expbuf;
	}
	}

	/* determine source type */
	switch (*strpbrk(source, "@#")) {
	case '@': source_type = ZFS_TYPE_SNAPSHOT; break;
	case '#': source_type = ZFS_TYPE_BOOKMARK; break;
	default: abort();
	}

	/* test the source exists */
	zfs_handle_t *zhp;
	zhp = zfs_open(g_zfs, source, source_type);
	if (zhp == NULL)
	goto usage;
	zfs_close(zhp);

	nvl = fnvlist_alloc();
	fnvlist_add_string(nvl, bookname, source);
	ret = lzc_bookmark(nvl, NULL);
	fnvlist_free(nvl);

	if (ret != 0) {
	const char *err_msg = NULL;
	char errbuf[1024];

	(void) snprintf(errbuf, sizeof (errbuf),
	dgettext(TEXT_DOMAIN,
	"cannot create bookmark '%s'"), bookname);

	switch (ret) {
	case EXDEV:
	err_msg = "bookmark is in a different pool";
	break;
	case ZFS_ERR_BOOKMARK_SOURCE_NOT_ANCESTOR:
	err_msg = "source is not an ancestor of the "
	"new bookmark's dataset";
	break;
	case EEXIST:
	err_msg = "bookmark exists";
	break;
	case EINVAL:
	err_msg = "invalid argument";
	break;
	case ENOTSUP:
	err_msg = "bookmark feature not enabled";
	break;
	case ENOSPC:
	err_msg = "out of space";
	break;
	case ENOENT:
	err_msg = "dataset does not exist";
	break;
	default:
	(void) zfs_standard_error(g_zfs, ret, errbuf);
	break;
	}
	if (err_msg != NULL) {
	(void) fprintf(stderr, "%s: %s\n", errbuf,
	dgettext(TEXT_DOMAIN, err_msg));
	}
	}

	return (ret != 0);

	usage:
	usage(B_FALSE);
	return (-1);
	}

	static int
	zfs_do_channel_program(int argc, char **argv)
	{
	int ret, fd, c;
	char progbuf, filename, *poolname;
	size_t progsize, progread;
	nvlist_t *outnvl = NULL;
	uint64_t instrlimit = ZCP_DEFAULT_INSTRLIMIT;
	uint64_t memlimit = ZCP_DEFAULT_MEMLIMIT;
	boolean_t sync_flag = B_TRUE, json_output = B_FALSE;
	zpool_handle_t *zhp;

	/* check options */
	while ((c = getopt(argc, argv, "nt:m:j")) != -1) {
	switch (c) {
	case 't':
	case 'm': {
	uint64_t arg;
	char *endp;

	errno = 0;
	arg = strtoull(optarg, &endp, 0);
	if (errno != 0 \|\| *endp != '\0') {
	(void) fprintf(stderr, gettext(
	"invalid argument "
	"'%s': expected integer\n"), optarg);
	goto usage;
	}

	if (c == 't') {
	instrlimit = arg;
	} else {
	ASSERT3U(c, ==, 'm');
	memlimit = arg;
	}
	break;
	}
	case 'n': {
	sync_flag = B_FALSE;
	break;
	}
	case 'j': {
	json_output = B_TRUE;
	break;
	}
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	goto usage;
	}
	}

	argc -= optind;
	argv += optind;

	if (argc < 2) {
	(void) fprintf(stderr,
	gettext("invalid number of arguments\n"));
	goto usage;
	}

	poolname = argv[0];
	filename = argv[1];
	if (strcmp(filename, "-") == 0) {
	fd = 0;
	filename = "standard input";
	} else if ((fd = open(filename, O_RDONLY)) < 0) {
	(void) fprintf(stderr, gettext("cannot open '%s': %s\n"),
	filename, strerror(errno));
	return (1);
	}

	if ((zhp = zpool_open(g_zfs, poolname)) == NULL) {
	(void) fprintf(stderr, gettext("cannot open pool '%s'\n"),
	poolname);
	if (fd != 0)
	(void) close(fd);
	return (1);
	}
	zpool_close(zhp);

	/*
	* Read in the channel program, expanding the program buffer as
	* necessary.
	*/
	progread = 0;
	progsize = 1024;
	progbuf = safe_malloc(progsize);
	do {
	ret = read(fd, progbuf + progread, progsize - progread);
	progread += ret;
	if (progread == progsize && ret > 0) {
	progsize *= 2;
	progbuf = safe_realloc(progbuf, progsize);
	}
	} while (ret > 0);

	if (fd != 0)
	(void) close(fd);
	if (ret < 0) {
	free(progbuf);
	(void) fprintf(stderr,
	gettext("cannot read '%s': %s\n"),
	filename, strerror(errno));
	return (1);
	}
	progbuf[progread] = '\0';

	/*
	* Any remaining arguments are passed as arguments to the lua script as
	* a string array:
	* {
	* "argv" -> [ "arg 1", ... "arg n" ],
	* }
	*/
	nvlist_t *argnvl = fnvlist_alloc();
	fnvlist_add_string_array(argnvl, ZCP_ARG_CLIARGV, argv + 2, argc - 2);

	if (sync_flag) {
	ret = lzc_channel_program(poolname, progbuf,
	instrlimit, memlimit, argnvl, &outnvl);
	} else {
	ret = lzc_channel_program_nosync(poolname, progbuf,
	instrlimit, memlimit, argnvl, &outnvl);
	}

	if (ret != 0) {
	/*
	* On error, report the error message handed back by lua if one
	* exists. Otherwise, generate an appropriate error message,
	* falling back on strerror() for an unexpected return code.
	*/
	char *errstring = NULL;
	const char *msg = gettext("Channel program execution failed");
	uint64_t instructions = 0;
	if (outnvl != NULL && nvlist_exists(outnvl, ZCP_RET_ERROR)) {
	(void) nvlist_lookup_string(outnvl,
	ZCP_RET_ERROR, &errstring);
	if (errstring == NULL)
	errstring = strerror(ret);
	if (ret == ETIME) {
	(void) nvlist_lookup_uint64(outnvl,
	ZCP_ARG_INSTRLIMIT, &instructions);
	}
	} else {
	switch (ret) {
	case EINVAL:
	errstring =
	"Invalid instruction or memory limit.";
	break;
	case ENOMEM:
	errstring = "Return value too large.";
	break;
	case ENOSPC:
	errstring = "Memory limit exhausted.";
	break;
	case ETIME:
	errstring = "Timed out.";
	break;
	case EPERM:
	errstring = "Permission denied. Channel "
	"programs must be run as root.";
	break;
	default:
	(void) zfs_standard_error(g_zfs, ret, msg);
	}
	}
	if (errstring != NULL)
	(void) fprintf(stderr, "%s:\n%s\n", msg, errstring);

	if (ret == ETIME && instructions != 0)
	(void) fprintf(stderr,
	gettext("%llu Lua instructions\n"),
	(u_longlong_t)instructions);
	} else {
	if (json_output) {
	(void) nvlist_print_json(stdout, outnvl);
	} else if (nvlist_empty(outnvl)) {
	(void) fprintf(stdout, gettext("Channel program fully "
	"executed and did not produce output.\n"));
	} else {
	(void) fprintf(stdout, gettext("Channel program fully "
	"executed and produced output:\n"));
	dump_nvlist(outnvl, 4);
	}
	}

	free(progbuf);
	fnvlist_free(outnvl);
	fnvlist_free(argnvl);
	return (ret != 0);

	usage:
	usage(B_FALSE);
	return (-1);
	}


	typedef struct loadkey_cbdata {
	boolean_t cb_loadkey;
	boolean_t cb_recursive;
	boolean_t cb_noop;
	char *cb_keylocation;
	uint64_t cb_numfailed;
	uint64_t cb_numattempted;
	} loadkey_cbdata_t;

	static int
	load_key_callback(zfs_handle_t zhp, void data)
	{
	int ret;
	boolean_t is_encroot;
	loadkey_cbdata_t *cb = data;
	uint64_t keystatus = zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS);

	/*
	* If we are working recursively, we want to skip loading / unloading
	* keys for non-encryption roots and datasets whose keys are already
	* in the desired end-state.
	*/
	if (cb->cb_recursive) {
	ret = zfs_crypto_get_encryption_root(zhp, &is_encroot, NULL);
	if (ret != 0)
	return (ret);
	if (!is_encroot)
	return (0);

	if ((cb->cb_loadkey && keystatus == ZFS_KEYSTATUS_AVAILABLE) \|\|
	(!cb->cb_loadkey && keystatus == ZFS_KEYSTATUS_UNAVAILABLE))
	return (0);
	}

	cb->cb_numattempted++;

	if (cb->cb_loadkey)
	ret = zfs_crypto_load_key(zhp, cb->cb_noop, cb->cb_keylocation);
	else
	ret = zfs_crypto_unload_key(zhp);

	if (ret != 0) {
	cb->cb_numfailed++;
	return (ret);
	}

	return (0);
	}

	static int
	load_unload_keys(int argc, char **argv, boolean_t loadkey)
	{
	int c, ret = 0, flags = 0;
	boolean_t do_all = B_FALSE;
	loadkey_cbdata_t cb = { 0 };

	cb.cb_loadkey = loadkey;

	while ((c = getopt(argc, argv, "anrL:")) != -1) {
	/* noop and alternate keylocations only apply to zfs load-key */
	if (loadkey) {
	switch (c) {
	case 'n':
	cb.cb_noop = B_TRUE;
	continue;
	case 'L':
	cb.cb_keylocation = optarg;
	continue;
	default:
	break;
	}
	}

	switch (c) {
	case 'a':
	do_all = B_TRUE;
	cb.cb_recursive = B_TRUE;
	break;
	case 'r':
	flags \|= ZFS_ITER_RECURSE;
	cb.cb_recursive = B_TRUE;
	break;
	default:
	(void) fprintf(stderr,
	gettext("invalid option '%c'\n"), optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	if (!do_all && argc == 0) {
	(void) fprintf(stderr,
	gettext("Missing dataset argument or -a option\n"));
	usage(B_FALSE);
	}

	if (do_all && argc != 0) {
	(void) fprintf(stderr,
	gettext("Cannot specify dataset with -a option\n"));
	usage(B_FALSE);
	}

	if (cb.cb_recursive && cb.cb_keylocation != NULL &&
	strcmp(cb.cb_keylocation, "prompt") != 0) {
	(void) fprintf(stderr, gettext("alternate keylocation may only "
	"be 'prompt' with -r or -a\n"));
	usage(B_FALSE);
	}

	ret = zfs_for_each(argc, argv, flags,
	ZFS_TYPE_FILESYSTEM \| ZFS_TYPE_VOLUME, NULL, NULL, 0,
	load_key_callback, &cb);

	if (cb.cb_noop \|\| (cb.cb_recursive && cb.cb_numattempted != 0)) {
	(void) printf(gettext("%llu / %llu key(s) successfully %s\n"),
	(u_longlong_t)(cb.cb_numattempted - cb.cb_numfailed),
	(u_longlong_t)cb.cb_numattempted,
	loadkey ? (cb.cb_noop ? "verified" : "loaded") :
	"unloaded");
	}

	if (cb.cb_numfailed != 0)
	ret = -1;

	return (ret);
	}

	static int
	zfs_do_load_key(int argc, char **argv)
	{
	return (load_unload_keys(argc, argv, B_TRUE));
	}


	static int
	zfs_do_unload_key(int argc, char **argv)
	{
	return (load_unload_keys(argc, argv, B_FALSE));
	}

	static int
	zfs_do_change_key(int argc, char **argv)
	{
	int c, ret;
	uint64_t keystatus;
	boolean_t loadkey = B_FALSE, inheritkey = B_FALSE;
	zfs_handle_t *zhp = NULL;
	nvlist_t *props = fnvlist_alloc();

	while ((c = getopt(argc, argv, "lio:")) != -1) {
	switch (c) {
	case 'l':
	loadkey = B_TRUE;
	break;
	case 'i':
	inheritkey = B_TRUE;
	break;
	case 'o':
	if (!parseprop(props, optarg)) {
	nvlist_free(props);
	return (1);
	}
	break;
	default:
	(void) fprintf(stderr,
	gettext("invalid option '%c'\n"), optopt);
	usage(B_FALSE);
	}
	}

	if (inheritkey && !nvlist_empty(props)) {
	(void) fprintf(stderr,
	gettext("Properties not allowed for inheriting\n"));
	usage(B_FALSE);
	}

	argc -= optind;
	argv += optind;

	if (argc < 1) {
	(void) fprintf(stderr, gettext("Missing dataset argument\n"));
	usage(B_FALSE);
	}

	if (argc > 1) {
	(void) fprintf(stderr, gettext("Too many arguments\n"));
	usage(B_FALSE);
	}

	zhp = zfs_open(g_zfs, argv[argc - 1],
	ZFS_TYPE_FILESYSTEM \| ZFS_TYPE_VOLUME);
	if (zhp == NULL)
	usage(B_FALSE);

	if (loadkey) {
	keystatus = zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS);
	if (keystatus != ZFS_KEYSTATUS_AVAILABLE) {
	ret = zfs_crypto_load_key(zhp, B_FALSE, NULL);
	if (ret != 0) {
	nvlist_free(props);
	zfs_close(zhp);
	return (-1);
	}
	}

	/* refresh the properties so the new keystatus is visible */
	zfs_refresh_properties(zhp);
	}

	ret = zfs_crypto_rewrap(zhp, props, inheritkey);
	if (ret != 0) {
	nvlist_free(props);
	zfs_close(zhp);
	return (-1);
	}

	nvlist_free(props);
	zfs_close(zhp);
	return (0);
	}

	/*
	* 1) zfs project [-d\|-r] <file\|directory ...>
	* List project ID and inherit flag of file(s) or directories.
	* -d: List the directory itself, not its children.
	* -r: List subdirectories recursively.
	*
	* 2) zfs project -C [-k] [-r] <file\|directory ...>
	* Clear project inherit flag and/or ID on the file(s) or directories.
	* -k: Keep the project ID unchanged. If not specified, the project ID
	* will be reset as zero.
	* -r: Clear on subdirectories recursively.
	*
	* 3) zfs project -c [-0] [-d\|-r] [-p id] <file\|directory ...>
	* Check project ID and inherit flag on the file(s) or directories,
	* report the outliers.
	* -0: Print file name followed by a NUL instead of newline.
	* -d: Check the directory itself, not its children.
	* -p: Specify the referenced ID for comparing with the target file(s)
	* or directories' project IDs. If not specified, the target (top)
	* directory's project ID will be used as the referenced one.
	* -r: Check subdirectories recursively.
	*
	* 4) zfs project [-p id] [-r] [-s] <file\|directory ...>
	* Set project ID and/or inherit flag on the file(s) or directories.
	* -p: Set the project ID as the given id.
	* -r: Set on subdirectories recursively. If not specify "-p" option,
	* it will use top-level directory's project ID as the given id,
	* then set both project ID and inherit flag on all descendants
	* of the top-level directory.
	* -s: Set project inherit flag.
	*/
	static int
	zfs_do_project(int argc, char **argv)
	{
	zfs_project_control_t zpc = {
	.zpc_expected_projid = ZFS_INVALID_PROJID,
	.zpc_op = ZFS_PROJECT_OP_DEFAULT,
	.zpc_dironly = B_FALSE,
	.zpc_keep_projid = B_FALSE,
	.zpc_newline = B_TRUE,
	.zpc_recursive = B_FALSE,
	.zpc_set_flag = B_FALSE,
	};
	int ret = 0, c;

	if (argc < 2)
	usage(B_FALSE);

	while ((c = getopt(argc, argv, "0Ccdkp:rs")) != -1) {
	switch (c) {
	case '0':
	zpc.zpc_newline = B_FALSE;
	break;
	case 'C':
	if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) {
	(void) fprintf(stderr, gettext("cannot "
	"specify '-C' '-c' '-s' together\n"));
	usage(B_FALSE);
	}

	zpc.zpc_op = ZFS_PROJECT_OP_CLEAR;
	break;
	case 'c':
	if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) {
	(void) fprintf(stderr, gettext("cannot "
	"specify '-C' '-c' '-s' together\n"));
	usage(B_FALSE);
	}

	zpc.zpc_op = ZFS_PROJECT_OP_CHECK;
	break;
	case 'd':
	zpc.zpc_dironly = B_TRUE;
	/* overwrite "-r" option */
	zpc.zpc_recursive = B_FALSE;
	break;
	case 'k':
	zpc.zpc_keep_projid = B_TRUE;
	break;
	case 'p': {
	char *endptr;

	errno = 0;
	zpc.zpc_expected_projid = strtoull(optarg, &endptr, 0);
	if (errno != 0 \|\| *endptr != '\0') {
	(void) fprintf(stderr,
	gettext("project ID must be less than "
	"%u\n"), UINT32_MAX);
	usage(B_FALSE);
	}
	if (zpc.zpc_expected_projid >= UINT32_MAX) {
	(void) fprintf(stderr,
	gettext("invalid project ID\n"));
	usage(B_FALSE);
	}
	break;
	}
	case 'r':
	zpc.zpc_recursive = B_TRUE;
	/* overwrite "-d" option */
	zpc.zpc_dironly = B_FALSE;
	break;
	case 's':
	if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) {
	(void) fprintf(stderr, gettext("cannot "
	"specify '-C' '-c' '-s' together\n"));
	usage(B_FALSE);
	}

	zpc.zpc_set_flag = B_TRUE;
	zpc.zpc_op = ZFS_PROJECT_OP_SET;
	break;
	default:
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	if (zpc.zpc_op == ZFS_PROJECT_OP_DEFAULT) {
	if (zpc.zpc_expected_projid != ZFS_INVALID_PROJID)
	zpc.zpc_op = ZFS_PROJECT_OP_SET;
	else
	zpc.zpc_op = ZFS_PROJECT_OP_LIST;
	}

	switch (zpc.zpc_op) {
	case ZFS_PROJECT_OP_LIST:
	if (zpc.zpc_keep_projid) {
	(void) fprintf(stderr,
	gettext("'-k' is only valid together with '-C'\n"));
	usage(B_FALSE);
	}
	if (!zpc.zpc_newline) {
	(void) fprintf(stderr,
	gettext("'-0' is only valid together with '-c'\n"));
	usage(B_FALSE);
	}
	break;
	case ZFS_PROJECT_OP_CHECK:
	if (zpc.zpc_keep_projid) {
	(void) fprintf(stderr,
	gettext("'-k' is only valid together with '-C'\n"));
	usage(B_FALSE);
	}
	break;
	case ZFS_PROJECT_OP_CLEAR:
	if (zpc.zpc_dironly) {
	(void) fprintf(stderr,
	gettext("'-d' is useless together with '-C'\n"));
	usage(B_FALSE);
	}
	if (!zpc.zpc_newline) {
	(void) fprintf(stderr,
	gettext("'-0' is only valid together with '-c'\n"));
	usage(B_FALSE);
	}
	if (zpc.zpc_expected_projid != ZFS_INVALID_PROJID) {
	(void) fprintf(stderr,
	gettext("'-p' is useless together with '-C'\n"));
	usage(B_FALSE);
	}
	break;
	case ZFS_PROJECT_OP_SET:
	if (zpc.zpc_dironly) {
	(void) fprintf(stderr,
	gettext("'-d' is useless for set project ID and/or "
	"inherit flag\n"));
	usage(B_FALSE);
	}
	if (zpc.zpc_keep_projid) {
	(void) fprintf(stderr,
	gettext("'-k' is only valid together with '-C'\n"));
	usage(B_FALSE);
	}
	if (!zpc.zpc_newline) {
	(void) fprintf(stderr,
	gettext("'-0' is only valid together with '-c'\n"));
	usage(B_FALSE);
	}
	break;
	default:
	ASSERT(0);
	break;
	}

	argv += optind;
	argc -= optind;
	if (argc == 0) {
	(void) fprintf(stderr,
	gettext("missing file or directory target(s)\n"));
	usage(B_FALSE);
	}

	for (int i = 0; i < argc; i++) {
	int err;

	err = zfs_project_handle(argv[i], &zpc);
	if (err && !ret)
	ret = err;
	}

	return (ret);
	}

	static int
	zfs_do_wait(int argc, char **argv)
	{
	boolean_t enabled[ZFS_WAIT_NUM_ACTIVITIES];
	int error, i;
	int c;

	/* By default, wait for all types of activity. */
	for (i = 0; i < ZFS_WAIT_NUM_ACTIVITIES; i++)
	enabled[i] = B_TRUE;

	while ((c = getopt(argc, argv, "t:")) != -1) {
	switch (c) {
	case 't':
	{
	static char *col_subopts[] = { "deleteq", NULL };
	char *value;

	/* Reset activities array */
	bzero(&enabled, sizeof (enabled));
	while (*optarg != '\0') {
	int activity = getsubopt(&optarg, col_subopts,
	&value);

	if (activity < 0) {
	(void) fprintf(stderr,
	gettext("invalid activity '%s'\n"),
	value);
	usage(B_FALSE);
	}

	enabled[activity] = B_TRUE;
	}
	break;
	}
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argv += optind;
	argc -= optind;
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing 'filesystem' "
	"argument\n"));
	usage(B_FALSE);
	}
	if (argc > 1) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	zfs_handle_t *zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM);
	if (zhp == NULL)
	return (1);

	for (;;) {
	boolean_t missing = B_FALSE;
	boolean_t any_waited = B_FALSE;

	for (int i = 0; i < ZFS_WAIT_NUM_ACTIVITIES; i++) {
	boolean_t waited;

	if (!enabled[i])
	continue;

	error = zfs_wait_status(zhp, i, &missing, &waited);
	if (error != 0 \|\| missing)
	break;

	any_waited = (any_waited \|\| waited);
	}

	if (error != 0 \|\| missing \|\| !any_waited)
	break;
	}

	zfs_close(zhp);

	return (error);
	}

	/*
	* Display version message
	*/
	static int
	zfs_do_version(int argc, char **argv)
	{
	if (zfs_version_print() == -1)
	return (1);

	return (0);
	}

	int
	main(int argc, char **argv)
	{
	int ret = 0;
	int i = 0;
	char *cmdname;
	char **newargv;

	(void) setlocale(LC_ALL, "");
	(void) setlocale(LC_NUMERIC, "C");
	(void) textdomain(TEXT_DOMAIN);

	opterr = 0;

	/*
	* Make sure the user has specified some command.
	*/
	if (argc < 2) {
	(void) fprintf(stderr, gettext("missing command\n"));
	usage(B_FALSE);
	}

	cmdname = argv[1];

	/*
	* The 'umount' command is an alias for 'unmount'
	*/
	if (strcmp(cmdname, "umount") == 0)
	cmdname = "unmount";

	/*
	* The 'recv' command is an alias for 'receive'
	*/
	if (strcmp(cmdname, "recv") == 0)
	cmdname = "receive";

	/*
	* The 'snap' command is an alias for 'snapshot'
	*/
	if (strcmp(cmdname, "snap") == 0)
	cmdname = "snapshot";

	/*
	* Special case '-?'
	*/
	if ((strcmp(cmdname, "-?") == 0) \|\|
	(strcmp(cmdname, "--help") == 0))
	usage(B_TRUE);

	/*
	* Special case '-V\|--version'
	*/
	if ((strcmp(cmdname, "-V") == 0) \|\| (strcmp(cmdname, "--version") == 0))
	return (zfs_do_version(argc, argv));

	if ((g_zfs = libzfs_init()) == NULL) {
	(void) fprintf(stderr, "%s\n", libzfs_error_init(errno));
	return (1);
	}

	zfs_save_arguments(argc, argv, history_str, sizeof (history_str));

	libzfs_print_on_error(g_zfs, B_TRUE);

	/*
	* Many commands modify input strings for string parsing reasons.
	* We create a copy to protect the original argv.
	*/
	newargv = malloc((argc + 1) * sizeof (newargv[0]));
	for (i = 0; i < argc; i++)
	newargv[i] = strdup(argv[i]);
	newargv[argc] = NULL;

	/*
	* Run the appropriate command.
	*/
	libzfs_mnttab_cache(g_zfs, B_TRUE);
	if (find_command_idx(cmdname, &i) == 0) {
	current_command = &command_table[i];
	ret = command_table[i].func(argc - 1, newargv + 1);
	} else if (strchr(cmdname, '=') != NULL) {
	verify(find_command_idx("set", &i) == 0);
	current_command = &command_table[i];
	ret = command_table[i].func(argc, newargv);
	} else {
	(void) fprintf(stderr, gettext("unrecognized "
	"command '%s'\n"), cmdname);
	usage(B_FALSE);
	ret = 1;
	}

	for (i = 0; i < argc; i++)
	free(newargv[i]);
	free(newargv);

	if (ret == 0 && log_history)
	(void) zpool_log_history(g_zfs, history_str);

	libzfs_fini(g_zfs);

	/*
	* The 'ZFS_ABORT' environment variable causes us to dump core on exit
	* for the purposes of running ::findleaks.
	*/
	if (getenv("ZFS_ABORT") != NULL) {
	(void) printf("dumping core by request\n");
	abort();
	}

	return (ret);
	}

	#ifdef __FreeBSD__
	#include <sys/jail.h>
	#include <jail.h>
	/*
	* Attach/detach the given dataset to/from the given jail
	*/
	/* ARGSUSED */
	static int
	zfs_do_jail_impl(int argc, char **argv, boolean_t attach)
	{
	zfs_handle_t *zhp;
	int jailid, ret;

	/* check number of arguments */
	if (argc < 3) {
	(void) fprintf(stderr, gettext("missing argument(s)\n"));
	usage(B_FALSE);
	}
	if (argc > 3) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	jailid = jail_getid(argv[1]);
	if (jailid < 0) {
	(void) fprintf(stderr, gettext("invalid jail id or name\n"));
	usage(B_FALSE);
	}

	zhp = zfs_open(g_zfs, argv[2], ZFS_TYPE_FILESYSTEM);
	if (zhp == NULL)
	return (1);

	ret = (zfs_jail(zhp, jailid, attach) != 0);

	zfs_close(zhp);
	return (ret);
	}

	/*
	* zfs jail jailid filesystem
	*
	* Attach the given dataset to the given jail
	*/
	/* ARGSUSED */
	static int
	zfs_do_jail(int argc, char **argv)
	{
	return (zfs_do_jail_impl(argc, argv, B_TRUE));
	}

	/*
	* zfs unjail jailid filesystem
	*
	* Detach the given dataset from the given jail
	*/
	/* ARGSUSED */
	static int
	zfs_do_unjail(int argc, char **argv)
	{
	return (zfs_do_jail_impl(argc, argv, B_FALSE));
	}
	#endif
	diff --git a/sys/contrib/openzfs/cmd/zpool/zpool_main.c b/sys/contrib/openzfs/cmd/zpool/zpool_main.c
	index 02415b157935..35a59710c05e 100644
	--- a/sys/contrib/openzfs/cmd/zpool/zpool_main.c
	+++ b/sys/contrib/openzfs/cmd/zpool/zpool_main.c
	@@ -1,10726 +1,10726 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
	* Copyright (c) 2011, 2020 by Delphix. All rights reserved.
	* Copyright (c) 2012 by Frederik Wessels. All rights reserved.
	* Copyright (c) 2012 by Cyril Plisko. All rights reserved.
	* Copyright (c) 2013 by Prasad Joshi (sTec). All rights reserved.
	* Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>.
	* Copyright (c) 2017 Datto Inc.
	* Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	* Copyright (c) 2017, Intel Corporation.
	* Copyright (c) 2019, loli10K <ezomori.nozomu@gmail.com>
	* Copyright (c) 2021, Colm Buckley <colm@tuatha.org>
	* Copyright [2021] Hewlett Packard Enterprise Development LP
	*/

	#include <assert.h>
	#include <ctype.h>
	#include <dirent.h>
	#include <errno.h>
	#include <fcntl.h>
	#include <getopt.h>
	#include <libgen.h>
	#include <libintl.h>
	#include <libuutil.h>
	#include <locale.h>
	#include <pthread.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include <strings.h>
	#include <time.h>
	#include <unistd.h>
	#include <pwd.h>
	#include <zone.h>
	#include <sys/wait.h>
	#include <zfs_prop.h>
	#include <sys/fs/zfs.h>
	#include <sys/stat.h>
	#include <sys/systeminfo.h>
	#include <sys/fm/fs/zfs.h>
	#include <sys/fm/util.h>
	#include <sys/fm/protocol.h>
	#include <sys/zfs_ioctl.h>
	#include <sys/mount.h>
	#include <sys/sysmacros.h>

	#include <math.h>

	#include <libzfs.h>
	#include <libzutil.h>

	#include "zpool_util.h"
	#include "zfs_comutil.h"
	#include "zfeature_common.h"

	#include "statcommon.h"

	libzfs_handle_t *g_zfs;

	static int zpool_do_create(int, char **);
	static int zpool_do_destroy(int, char **);

	static int zpool_do_add(int, char **);
	static int zpool_do_remove(int, char **);
	static int zpool_do_labelclear(int, char **);

	static int zpool_do_checkpoint(int, char **);

	static int zpool_do_list(int, char **);
	static int zpool_do_iostat(int, char **);
	static int zpool_do_status(int, char **);

	static int zpool_do_online(int, char **);
	static int zpool_do_offline(int, char **);
	static int zpool_do_clear(int, char **);
	static int zpool_do_reopen(int, char **);

	static int zpool_do_reguid(int, char **);

	static int zpool_do_attach(int, char **);
	static int zpool_do_detach(int, char **);
	static int zpool_do_replace(int, char **);
	static int zpool_do_split(int, char **);

	static int zpool_do_initialize(int, char **);
	static int zpool_do_scrub(int, char **);
	static int zpool_do_resilver(int, char **);
	static int zpool_do_trim(int, char **);

	static int zpool_do_import(int, char **);
	static int zpool_do_export(int, char **);

	static int zpool_do_upgrade(int, char **);

	static int zpool_do_history(int, char **);
	static int zpool_do_events(int, char **);

	static int zpool_do_get(int, char **);
	static int zpool_do_set(int, char **);

	static int zpool_do_sync(int, char **);

	static int zpool_do_version(int, char **);

	static int zpool_do_wait(int, char **);

	static zpool_compat_status_t zpool_do_load_compat(
	const char , boolean_t );

	/*
	* These libumem hooks provide a reasonable set of defaults for the allocator's
	* debugging facilities.
	*/

	#ifdef DEBUG
	const char *
	_umem_debug_init(void)
	{
	return ("default,verbose"); /* $UMEM_DEBUG setting */
	}

	const char *
	_umem_logging_init(void)
	{
	return ("fail,contents"); /* $UMEM_LOGGING setting */
	}
	#endif

	typedef enum {
	HELP_ADD,
	HELP_ATTACH,
	HELP_CLEAR,
	HELP_CREATE,
	HELP_CHECKPOINT,
	HELP_DESTROY,
	HELP_DETACH,
	HELP_EXPORT,
	HELP_HISTORY,
	HELP_IMPORT,
	HELP_IOSTAT,
	HELP_LABELCLEAR,
	HELP_LIST,
	HELP_OFFLINE,
	HELP_ONLINE,
	HELP_REPLACE,
	HELP_REMOVE,
	HELP_INITIALIZE,
	HELP_SCRUB,
	HELP_RESILVER,
	HELP_TRIM,
	HELP_STATUS,
	HELP_UPGRADE,
	HELP_EVENTS,
	HELP_GET,
	HELP_SET,
	HELP_SPLIT,
	HELP_SYNC,
	HELP_REGUID,
	HELP_REOPEN,
	HELP_VERSION,
	HELP_WAIT
	} zpool_help_t;


	/*
	* Flags for stats to display with "zpool iostats"
	*/
	enum iostat_type {
	IOS_DEFAULT = 0,
	IOS_LATENCY = 1,
	IOS_QUEUES = 2,
	IOS_L_HISTO = 3,
	IOS_RQ_HISTO = 4,
	IOS_COUNT, /* always last element */
	};

	/* iostat_type entries as bitmasks */
	#define IOS_DEFAULT_M (1ULL << IOS_DEFAULT)
	#define IOS_LATENCY_M (1ULL << IOS_LATENCY)
	#define IOS_QUEUES_M (1ULL << IOS_QUEUES)
	#define IOS_L_HISTO_M (1ULL << IOS_L_HISTO)
	#define IOS_RQ_HISTO_M (1ULL << IOS_RQ_HISTO)

	/* Mask of all the histo bits */
	#define IOS_ANYHISTO_M (IOS_L_HISTO_M \| IOS_RQ_HISTO_M)

	/*
	* Lookup table for iostat flags to nvlist names. Basically a list
	* of all the nvlists a flag requires. Also specifies the order in
	* which data gets printed in zpool iostat.
	*/
	static const char *vsx_type_to_nvlist[IOS_COUNT][13] = {
	[IOS_L_HISTO] = {
	ZPOOL_CONFIG_VDEV_TOT_R_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_TOT_W_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_DISK_R_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_DISK_W_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_SYNC_R_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_SYNC_W_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_ASYNC_R_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_ASYNC_W_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_SCRUB_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_TRIM_LAT_HISTO,
	NULL},
	[IOS_LATENCY] = {
	ZPOOL_CONFIG_VDEV_TOT_R_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_TOT_W_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_DISK_R_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_DISK_W_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_TRIM_LAT_HISTO,
	NULL},
	[IOS_QUEUES] = {
	ZPOOL_CONFIG_VDEV_SYNC_R_ACTIVE_QUEUE,
	ZPOOL_CONFIG_VDEV_SYNC_W_ACTIVE_QUEUE,
	ZPOOL_CONFIG_VDEV_ASYNC_R_ACTIVE_QUEUE,
	ZPOOL_CONFIG_VDEV_ASYNC_W_ACTIVE_QUEUE,
	ZPOOL_CONFIG_VDEV_SCRUB_ACTIVE_QUEUE,
	ZPOOL_CONFIG_VDEV_TRIM_ACTIVE_QUEUE,
	NULL},
	[IOS_RQ_HISTO] = {
	ZPOOL_CONFIG_VDEV_SYNC_IND_R_HISTO,
	ZPOOL_CONFIG_VDEV_SYNC_AGG_R_HISTO,
	ZPOOL_CONFIG_VDEV_SYNC_IND_W_HISTO,
	ZPOOL_CONFIG_VDEV_SYNC_AGG_W_HISTO,
	ZPOOL_CONFIG_VDEV_ASYNC_IND_R_HISTO,
	ZPOOL_CONFIG_VDEV_ASYNC_AGG_R_HISTO,
	ZPOOL_CONFIG_VDEV_ASYNC_IND_W_HISTO,
	ZPOOL_CONFIG_VDEV_ASYNC_AGG_W_HISTO,
	ZPOOL_CONFIG_VDEV_IND_SCRUB_HISTO,
	ZPOOL_CONFIG_VDEV_AGG_SCRUB_HISTO,
	ZPOOL_CONFIG_VDEV_IND_TRIM_HISTO,
	ZPOOL_CONFIG_VDEV_AGG_TRIM_HISTO,
	NULL},
	};


	/*
	* Given a cb->cb_flags with a histogram bit set, return the iostat_type.
	* Right now, only one histo bit is ever set at one time, so we can
	* just do a highbit64(a)
	*/
	#define IOS_HISTO_IDX(a) (highbit64(a & IOS_ANYHISTO_M) - 1)

	typedef struct zpool_command {
	const char *name;
	int (func)(int, char *);
	zpool_help_t usage;
	} zpool_command_t;

	/*
	* Master command table. Each ZFS command has a name, associated function, and
	* usage message. The usage messages need to be internationalized, so we have
	* to have a function to return the usage message based on a command index.
	*
	* These commands are organized according to how they are displayed in the usage
	* message. An empty command (one with a NULL name) indicates an empty line in
	* the generic usage message.
	*/
	static zpool_command_t command_table[] = {
	{ "version", zpool_do_version, HELP_VERSION },
	{ NULL },
	{ "create", zpool_do_create, HELP_CREATE },
	{ "destroy", zpool_do_destroy, HELP_DESTROY },
	{ NULL },
	{ "add", zpool_do_add, HELP_ADD },
	{ "remove", zpool_do_remove, HELP_REMOVE },
	{ NULL },
	{ "labelclear", zpool_do_labelclear, HELP_LABELCLEAR },
	{ NULL },
	{ "checkpoint", zpool_do_checkpoint, HELP_CHECKPOINT },
	{ NULL },
	{ "list", zpool_do_list, HELP_LIST },
	{ "iostat", zpool_do_iostat, HELP_IOSTAT },
	{ "status", zpool_do_status, HELP_STATUS },
	{ NULL },
	{ "online", zpool_do_online, HELP_ONLINE },
	{ "offline", zpool_do_offline, HELP_OFFLINE },
	{ "clear", zpool_do_clear, HELP_CLEAR },
	{ "reopen", zpool_do_reopen, HELP_REOPEN },
	{ NULL },
	{ "attach", zpool_do_attach, HELP_ATTACH },
	{ "detach", zpool_do_detach, HELP_DETACH },
	{ "replace", zpool_do_replace, HELP_REPLACE },
	{ "split", zpool_do_split, HELP_SPLIT },
	{ NULL },
	{ "initialize", zpool_do_initialize, HELP_INITIALIZE },
	{ "resilver", zpool_do_resilver, HELP_RESILVER },
	{ "scrub", zpool_do_scrub, HELP_SCRUB },
	{ "trim", zpool_do_trim, HELP_TRIM },
	{ NULL },
	{ "import", zpool_do_import, HELP_IMPORT },
	{ "export", zpool_do_export, HELP_EXPORT },
	{ "upgrade", zpool_do_upgrade, HELP_UPGRADE },
	{ "reguid", zpool_do_reguid, HELP_REGUID },
	{ NULL },
	{ "history", zpool_do_history, HELP_HISTORY },
	{ "events", zpool_do_events, HELP_EVENTS },
	{ NULL },
	{ "get", zpool_do_get, HELP_GET },
	{ "set", zpool_do_set, HELP_SET },
	{ "sync", zpool_do_sync, HELP_SYNC },
	{ NULL },
	{ "wait", zpool_do_wait, HELP_WAIT },
	};

	#define NCOMMAND (ARRAY_SIZE(command_table))

	#define VDEV_ALLOC_CLASS_LOGS "logs"

	static zpool_command_t *current_command;
	static char history_str[HIS_MAX_RECORD_LEN];
	static boolean_t log_history = B_TRUE;
	static uint_t timestamp_fmt = NODATE;

	static const char *
	get_usage(zpool_help_t idx)
	{
	switch (idx) {
	case HELP_ADD:
	return (gettext("\tadd [-fgLnP] [-o property=value] "
	"<pool> <vdev> ...\n"));
	case HELP_ATTACH:
	return (gettext("\tattach [-fsw] [-o property=value] "
	"<pool> <device> <new-device>\n"));
	case HELP_CLEAR:
	return (gettext("\tclear [-nF] <pool> [device]\n"));
	case HELP_CREATE:
	return (gettext("\tcreate [-fnd] [-o property=value] ... \n"
	"\t [-O file-system-property=value] ... \n"
	"\t [-m mountpoint] [-R root] <pool> <vdev> ...\n"));
	case HELP_CHECKPOINT:
	return (gettext("\tcheckpoint [-d [-w]] <pool> ...\n"));
	case HELP_DESTROY:
	return (gettext("\tdestroy [-f] <pool>\n"));
	case HELP_DETACH:
	return (gettext("\tdetach <pool> <device>\n"));
	case HELP_EXPORT:
	return (gettext("\texport [-af] <pool> ...\n"));
	case HELP_HISTORY:
	return (gettext("\thistory [-il] [<pool>] ...\n"));
	case HELP_IMPORT:
	return (gettext("\timport [-d dir] [-D]\n"
	"\timport [-o mntopts] [-o property=value] ... \n"
	"\t [-d dir \| -c cachefile] [-D] [-l] [-f] [-m] [-N] "
	"[-R root] [-F [-n]] -a\n"
	"\timport [-o mntopts] [-o property=value] ... \n"
	"\t [-d dir \| -c cachefile] [-D] [-l] [-f] [-m] [-N] "
	"[-R root] [-F [-n]]\n"
	"\t [--rewind-to-checkpoint] <pool \| id> [newpool]\n"));
	case HELP_IOSTAT:
	return (gettext("\tiostat [[[-c [script1,script2,...]"
	"[-lq]]\|[-rw]] [-T d \| u] [-ghHLpPvy]\n"
	"\t [[pool ...]\|[pool vdev ...]\|[vdev ...]]"
	" [[-n] interval [count]]\n"));
	case HELP_LABELCLEAR:
	return (gettext("\tlabelclear [-f] <vdev>\n"));
	case HELP_LIST:
	return (gettext("\tlist [-gHLpPv] [-o property[,...]] "
	"[-T d\|u] [pool] ... \n"
	"\t [interval [count]]\n"));
	case HELP_OFFLINE:
	return (gettext("\toffline [-f] [-t] <pool> <device> ...\n"));
	case HELP_ONLINE:
	return (gettext("\tonline [-e] <pool> <device> ...\n"));
	case HELP_REPLACE:
	return (gettext("\treplace [-fsw] [-o property=value] "
	"<pool> <device> [new-device]\n"));
	case HELP_REMOVE:
	return (gettext("\tremove [-npsw] <pool> <device> ...\n"));
	case HELP_REOPEN:
	return (gettext("\treopen [-n] <pool>\n"));
	case HELP_INITIALIZE:
	return (gettext("\tinitialize [-c \| -s] [-w] <pool> "
	"[<device> ...]\n"));
	case HELP_SCRUB:
	return (gettext("\tscrub [-s \| -p] [-w] <pool> ...\n"));
	case HELP_RESILVER:
	return (gettext("\tresilver <pool> ...\n"));
	case HELP_TRIM:
	return (gettext("\ttrim [-dw] [-r <rate>] [-c \| -s] <pool> "
	"[<device> ...]\n"));
	case HELP_STATUS:
	return (gettext("\tstatus [-c [script1,script2,...]] "
	"[-igLpPstvxD] [-T d\|u] [pool] ... \n"
	"\t [interval [count]]\n"));
	case HELP_UPGRADE:
	return (gettext("\tupgrade\n"
	"\tupgrade -v\n"
	"\tupgrade [-V version] <-a \| pool ...>\n"));
	case HELP_EVENTS:
	return (gettext("\tevents [-vHf [pool] \| -c]\n"));
	case HELP_GET:
	return (gettext("\tget [-Hp] [-o \"all\" \| field[,...]] "
	"<\"all\" \| property[,...]> <pool> ...\n"));
	case HELP_SET:
	return (gettext("\tset <property=value> <pool> \n"));
	case HELP_SPLIT:
	return (gettext("\tsplit [-gLnPl] [-R altroot] [-o mntopts]\n"
	"\t [-o property=value] <pool> <newpool> "
	"[<device> ...]\n"));
	case HELP_REGUID:
	return (gettext("\treguid <pool>\n"));
	case HELP_SYNC:
	return (gettext("\tsync [pool] ...\n"));
	case HELP_VERSION:
	return (gettext("\tversion\n"));
	case HELP_WAIT:
	return (gettext("\twait [-Hp] [-T d\|u] [-t <activity>[,...]] "
	"<pool> [interval]\n"));
	}

	abort();
	/* NOTREACHED */
	}

	static void
	zpool_collect_leaves(zpool_handle_t zhp, nvlist_t nvroot, nvlist_t *res)
	{
	uint_t children = 0;
	nvlist_t **child;
	uint_t i;

	(void) nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
	&child, &children);

	if (children == 0) {
	char *path = zpool_vdev_name(g_zfs, zhp, nvroot,
	VDEV_NAME_PATH);

	if (strcmp(path, VDEV_TYPE_INDIRECT) != 0 &&
	strcmp(path, VDEV_TYPE_HOLE) != 0)
	fnvlist_add_boolean(res, path);

	free(path);
	return;
	}

	for (i = 0; i < children; i++) {
	zpool_collect_leaves(zhp, child[i], res);
	}
	}

	/*
	* Callback routine that will print out a pool property value.
	*/
	static int
	print_prop_cb(int prop, void *cb)
	{
	FILE *fp = cb;

	(void) fprintf(fp, "\t%-19s ", zpool_prop_to_name(prop));

	if (zpool_prop_readonly(prop))
	(void) fprintf(fp, " NO ");
	else
	(void) fprintf(fp, " YES ");

	if (zpool_prop_values(prop) == NULL)
	(void) fprintf(fp, "-\n");
	else
	(void) fprintf(fp, "%s\n", zpool_prop_values(prop));

	return (ZPROP_CONT);
	}

	/*
	* Display usage message. If we're inside a command, display only the usage for
	* that command. Otherwise, iterate over the entire command table and display
	* a complete usage message.
	*/
	static void
	usage(boolean_t requested)
	{
	FILE *fp = requested ? stdout : stderr;

	if (current_command == NULL) {
	int i;

	(void) fprintf(fp, gettext("usage: zpool command args ...\n"));
	(void) fprintf(fp,
	gettext("where 'command' is one of the following:\n\n"));

	for (i = 0; i < NCOMMAND; i++) {
	if (command_table[i].name == NULL)
	(void) fprintf(fp, "\n");
	else
	(void) fprintf(fp, "%s",
	get_usage(command_table[i].usage));
	}
	} else {
	(void) fprintf(fp, gettext("usage:\n"));
	(void) fprintf(fp, "%s", get_usage(current_command->usage));
	}

	if (current_command != NULL &&
	((strcmp(current_command->name, "set") == 0) \|\|
	(strcmp(current_command->name, "get") == 0) \|\|
	(strcmp(current_command->name, "list") == 0))) {

	(void) fprintf(fp,
	gettext("\nthe following properties are supported:\n"));

	(void) fprintf(fp, "\n\t%-19s %s %s\n\n",
	"PROPERTY", "EDIT", "VALUES");

	/* Iterate over all properties */
	(void) zprop_iter(print_prop_cb, fp, B_FALSE, B_TRUE,
	ZFS_TYPE_POOL);

	(void) fprintf(fp, "\t%-19s ", "feature@...");
	(void) fprintf(fp, "YES disabled \| enabled \| active\n");

	(void) fprintf(fp, gettext("\nThe feature@ properties must be "
	- "appended with a feature name.\nSee zpool-features(5).\n"));
	+ "appended with a feature name.\nSee zpool-features(7).\n"));
	}

	/*
	* See comments at end of main().
	*/
	if (getenv("ZFS_ABORT") != NULL) {
	(void) printf("dumping core by request\n");
	abort();
	}

	exit(requested ? 0 : 2);
	}

	/*
	* zpool initialize [-c \| -s] [-w] <pool> [<vdev> ...]
	* Initialize all unused blocks in the specified vdevs, or all vdevs in the pool
	* if none specified.
	*
	* -c Cancel. Ends active initializing.
	* -s Suspend. Initializing can then be restarted with no flags.
	* -w Wait. Blocks until initializing has completed.
	*/
	int
	zpool_do_initialize(int argc, char **argv)
	{
	int c;
	char *poolname;
	zpool_handle_t *zhp;
	nvlist_t *vdevs;
	int err = 0;
	boolean_t wait = B_FALSE;

	struct option long_options[] = {
	{"cancel", no_argument, NULL, 'c'},
	{"suspend", no_argument, NULL, 's'},
	{"wait", no_argument, NULL, 'w'},
	{0, 0, 0, 0}
	};

	pool_initialize_func_t cmd_type = POOL_INITIALIZE_START;
	while ((c = getopt_long(argc, argv, "csw", long_options, NULL)) != -1) {
	switch (c) {
	case 'c':
	if (cmd_type != POOL_INITIALIZE_START &&
	cmd_type != POOL_INITIALIZE_CANCEL) {
	(void) fprintf(stderr, gettext("-c cannot be "
	"combined with other options\n"));
	usage(B_FALSE);
	}
	cmd_type = POOL_INITIALIZE_CANCEL;
	break;
	case 's':
	if (cmd_type != POOL_INITIALIZE_START &&
	cmd_type != POOL_INITIALIZE_SUSPEND) {
	(void) fprintf(stderr, gettext("-s cannot be "
	"combined with other options\n"));
	usage(B_FALSE);
	}
	cmd_type = POOL_INITIALIZE_SUSPEND;
	break;
	case 'w':
	wait = B_TRUE;
	break;
	case '?':
	if (optopt != 0) {
	(void) fprintf(stderr,
	gettext("invalid option '%c'\n"), optopt);
	} else {
	(void) fprintf(stderr,
	gettext("invalid option '%s'\n"),
	argv[optind - 1]);
	}
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing pool name argument\n"));
	usage(B_FALSE);
	return (-1);
	}

	if (wait && (cmd_type != POOL_INITIALIZE_START)) {
	(void) fprintf(stderr, gettext("-w cannot be used with -c or "
	"-s\n"));
	usage(B_FALSE);
	}

	poolname = argv[0];
	zhp = zpool_open(g_zfs, poolname);
	if (zhp == NULL)
	return (-1);

	vdevs = fnvlist_alloc();
	if (argc == 1) {
	/* no individual leaf vdevs specified, so add them all */
	nvlist_t *config = zpool_get_config(zhp, NULL);
	nvlist_t *nvroot = fnvlist_lookup_nvlist(config,
	ZPOOL_CONFIG_VDEV_TREE);
	zpool_collect_leaves(zhp, nvroot, vdevs);
	} else {
	for (int i = 1; i < argc; i++) {
	fnvlist_add_boolean(vdevs, argv[i]);
	}
	}

	if (wait)
	err = zpool_initialize_wait(zhp, cmd_type, vdevs);
	else
	err = zpool_initialize(zhp, cmd_type, vdevs);

	fnvlist_free(vdevs);
	zpool_close(zhp);

	return (err);
	}

	/*
	* print a pool vdev config for dry runs
	*/
	static void
	print_vdev_tree(zpool_handle_t zhp, const char name, nvlist_t *nv, int indent,
	const char *match, int name_flags)
	{
	nvlist_t **child;
	uint_t c, children;
	char *vname;
	boolean_t printed = B_FALSE;

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
	&child, &children) != 0) {
	if (name != NULL)
	(void) printf("\t%*s%s\n", indent, "", name);
	return;
	}

	for (c = 0; c < children; c++) {
	uint64_t is_log = B_FALSE, is_hole = B_FALSE;
	char *class = "";

	(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE,
	&is_hole);

	if (is_hole == B_TRUE) {
	continue;
	}

	(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
	&is_log);
	if (is_log)
	class = VDEV_ALLOC_BIAS_LOG;
	(void) nvlist_lookup_string(child[c],
	ZPOOL_CONFIG_ALLOCATION_BIAS, &class);
	if (strcmp(match, class) != 0)
	continue;

	if (!printed && name != NULL) {
	(void) printf("\t%*s%s\n", indent, "", name);
	printed = B_TRUE;
	}
	vname = zpool_vdev_name(g_zfs, zhp, child[c], name_flags);
	print_vdev_tree(zhp, vname, child[c], indent + 2, "",
	name_flags);
	free(vname);
	}
	}

	/*
	* Print the list of l2cache devices for dry runs.
	*/
	static void
	print_cache_list(nvlist_t *nv, int indent)
	{
	nvlist_t **child;
	uint_t c, children;

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
	&child, &children) == 0 && children > 0) {
	(void) printf("\t%*s%s\n", indent, "", "cache");
	} else {
	return;
	}
	for (c = 0; c < children; c++) {
	char *vname;

	vname = zpool_vdev_name(g_zfs, NULL, child[c], 0);
	(void) printf("\t%*s%s\n", indent + 2, "", vname);
	free(vname);
	}
	}

	/*
	* Print the list of spares for dry runs.
	*/
	static void
	print_spare_list(nvlist_t *nv, int indent)
	{
	nvlist_t **child;
	uint_t c, children;

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
	&child, &children) == 0 && children > 0) {
	(void) printf("\t%*s%s\n", indent, "", "spares");
	} else {
	return;
	}
	for (c = 0; c < children; c++) {
	char *vname;

	vname = zpool_vdev_name(g_zfs, NULL, child[c], 0);
	(void) printf("\t%*s%s\n", indent + 2, "", vname);
	free(vname);
	}
	}

	static boolean_t
	prop_list_contains_feature(nvlist_t *proplist)
	{
	nvpair_t *nvp;
	for (nvp = nvlist_next_nvpair(proplist, NULL); NULL != nvp;
	nvp = nvlist_next_nvpair(proplist, nvp)) {
	if (zpool_prop_feature(nvpair_name(nvp)))
	return (B_TRUE);
	}
	return (B_FALSE);
	}

	/*
	* Add a property pair (name, string-value) into a property nvlist.
	*/
	static int
	add_prop_list(const char propname, char propval, nvlist_t **props,
	boolean_t poolprop)
	{
	zpool_prop_t prop = ZPOOL_PROP_INVAL;
	nvlist_t *proplist;
	const char *normnm;
	char *strval;

	if (*props == NULL &&
	nvlist_alloc(props, NV_UNIQUE_NAME, 0) != 0) {
	(void) fprintf(stderr,
	gettext("internal error: out of memory\n"));
	return (1);
	}

	proplist = *props;

	if (poolprop) {
	const char *vname = zpool_prop_to_name(ZPOOL_PROP_VERSION);
	const char *cname =
	zpool_prop_to_name(ZPOOL_PROP_COMPATIBILITY);

	if ((prop = zpool_name_to_prop(propname)) == ZPOOL_PROP_INVAL &&
	!zpool_prop_feature(propname)) {
	(void) fprintf(stderr, gettext("property '%s' is "
	"not a valid pool property\n"), propname);
	return (2);
	}

	/*
	* feature@ properties and version should not be specified
	* at the same time.
	*/
	if ((prop == ZPOOL_PROP_INVAL && zpool_prop_feature(propname) &&
	nvlist_exists(proplist, vname)) \|\|
	(prop == ZPOOL_PROP_VERSION &&
	prop_list_contains_feature(proplist))) {
	(void) fprintf(stderr, gettext("'feature@' and "
	"'version' properties cannot be specified "
	"together\n"));
	return (2);
	}

	/*
	* if version is specified, only "legacy" compatibility
	* may be requested
	*/
	if ((prop == ZPOOL_PROP_COMPATIBILITY &&
	strcmp(propval, ZPOOL_COMPAT_LEGACY) != 0 &&
	nvlist_exists(proplist, vname)) \|\|
	(prop == ZPOOL_PROP_VERSION &&
	nvlist_exists(proplist, cname) &&
	strcmp(fnvlist_lookup_string(proplist, cname),
	ZPOOL_COMPAT_LEGACY) != 0)) {
	(void) fprintf(stderr, gettext("when 'version' is "
	"specified, the 'compatibility' feature may only "
	"be set to '" ZPOOL_COMPAT_LEGACY "'\n"));
	return (2);
	}

	if (zpool_prop_feature(propname))
	normnm = propname;
	else
	normnm = zpool_prop_to_name(prop);
	} else {
	zfs_prop_t fsprop = zfs_name_to_prop(propname);

	if (zfs_prop_valid_for_type(fsprop, ZFS_TYPE_FILESYSTEM,
	B_FALSE)) {
	normnm = zfs_prop_to_name(fsprop);
	} else if (zfs_prop_user(propname) \|\|
	zfs_prop_userquota(propname)) {
	normnm = propname;
	} else {
	(void) fprintf(stderr, gettext("property '%s' is "
	"not a valid filesystem property\n"), propname);
	return (2);
	}
	}

	if (nvlist_lookup_string(proplist, normnm, &strval) == 0 &&
	prop != ZPOOL_PROP_CACHEFILE) {
	(void) fprintf(stderr, gettext("property '%s' "
	"specified multiple times\n"), propname);
	return (2);
	}

	if (nvlist_add_string(proplist, normnm, propval) != 0) {
	(void) fprintf(stderr, gettext("internal "
	"error: out of memory\n"));
	return (1);
	}

	return (0);
	}

	/*
	* Set a default property pair (name, string-value) in a property nvlist
	*/
	static int
	add_prop_list_default(const char propname, char propval, nvlist_t **props,
	boolean_t poolprop)
	{
	char *pval;

	if (nvlist_lookup_string(*props, propname, &pval) == 0)
	return (0);

	return (add_prop_list(propname, propval, props, B_TRUE));
	}

	/*
	* zpool add [-fgLnP] [-o property=value] <pool> <vdev> ...
	*
	* -f Force addition of devices, even if they appear in use
	* -g Display guid for individual vdev name.
	* -L Follow links when resolving vdev path name.
	* -n Do not add the devices, but display the resulting layout if
	* they were to be added.
	* -o Set property=value.
	* -P Display full path for vdev name.
	*
	* Adds the given vdevs to 'pool'. As with create, the bulk of this work is
	* handled by make_root_vdev(), which constructs the nvlist needed to pass to
	* libzfs.
	*/
	int
	zpool_do_add(int argc, char **argv)
	{
	boolean_t force = B_FALSE;
	boolean_t dryrun = B_FALSE;
	int name_flags = 0;
	int c;
	nvlist_t *nvroot;
	char *poolname;
	int ret;
	zpool_handle_t *zhp;
	nvlist_t *config;
	nvlist_t *props = NULL;
	char *propval;

	/* check options */
	while ((c = getopt(argc, argv, "fgLno:P")) != -1) {
	switch (c) {
	case 'f':
	force = B_TRUE;
	break;
	case 'g':
	name_flags \|= VDEV_NAME_GUID;
	break;
	case 'L':
	name_flags \|= VDEV_NAME_FOLLOW_LINKS;
	break;
	case 'n':
	dryrun = B_TRUE;
	break;
	case 'o':
	if ((propval = strchr(optarg, '=')) == NULL) {
	(void) fprintf(stderr, gettext("missing "
	"'=' for -o option\n"));
	usage(B_FALSE);
	}
	*propval = '\0';
	propval++;

	if ((strcmp(optarg, ZPOOL_CONFIG_ASHIFT) != 0) \|\|
	(add_prop_list(optarg, propval, &props, B_TRUE)))
	usage(B_FALSE);
	break;
	case 'P':
	name_flags \|= VDEV_NAME_PATH;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* get pool name and check number of arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing pool name argument\n"));
	usage(B_FALSE);
	}
	if (argc < 2) {
	(void) fprintf(stderr, gettext("missing vdev specification\n"));
	usage(B_FALSE);
	}

	poolname = argv[0];

	argc--;
	argv++;

	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
	return (1);

	if ((config = zpool_get_config(zhp, NULL)) == NULL) {
	(void) fprintf(stderr, gettext("pool '%s' is unavailable\n"),
	poolname);
	zpool_close(zhp);
	return (1);
	}

	/* unless manually specified use "ashift" pool property (if set) */
	if (!nvlist_exists(props, ZPOOL_CONFIG_ASHIFT)) {
	int intval;
	zprop_source_t src;
	char strval[ZPOOL_MAXPROPLEN];

	intval = zpool_get_prop_int(zhp, ZPOOL_PROP_ASHIFT, &src);
	if (src != ZPROP_SRC_DEFAULT) {
	(void) sprintf(strval, "%" PRId32, intval);
	verify(add_prop_list(ZPOOL_CONFIG_ASHIFT, strval,
	&props, B_TRUE) == 0);
	}
	}

	/* pass off to make_root_vdev for processing */
	nvroot = make_root_vdev(zhp, props, force, !force, B_FALSE, dryrun,
	argc, argv);
	if (nvroot == NULL) {
	zpool_close(zhp);
	return (1);
	}

	if (dryrun) {
	nvlist_t *poolnvroot;
	nvlist_t l2child, sparechild;
	uint_t l2children, sparechildren, c;
	char *vname;
	boolean_t hadcache = B_FALSE, hadspare = B_FALSE;

	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
	&poolnvroot) == 0);

	(void) printf(gettext("would update '%s' to the following "
	"configuration:\n\n"), zpool_get_name(zhp));

	/* print original main pool and new tree */
	print_vdev_tree(zhp, poolname, poolnvroot, 0, "",
	name_flags \| VDEV_NAME_TYPE_ID);
	print_vdev_tree(zhp, NULL, nvroot, 0, "", name_flags);

	/* print other classes: 'dedup', 'special', and 'log' */
	if (zfs_special_devs(poolnvroot, VDEV_ALLOC_BIAS_DEDUP)) {
	print_vdev_tree(zhp, "dedup", poolnvroot, 0,
	VDEV_ALLOC_BIAS_DEDUP, name_flags);
	print_vdev_tree(zhp, NULL, nvroot, 0,
	VDEV_ALLOC_BIAS_DEDUP, name_flags);
	} else if (zfs_special_devs(nvroot, VDEV_ALLOC_BIAS_DEDUP)) {
	print_vdev_tree(zhp, "dedup", nvroot, 0,
	VDEV_ALLOC_BIAS_DEDUP, name_flags);
	}

	if (zfs_special_devs(poolnvroot, VDEV_ALLOC_BIAS_SPECIAL)) {
	print_vdev_tree(zhp, "special", poolnvroot, 0,
	VDEV_ALLOC_BIAS_SPECIAL, name_flags);
	print_vdev_tree(zhp, NULL, nvroot, 0,
	VDEV_ALLOC_BIAS_SPECIAL, name_flags);
	} else if (zfs_special_devs(nvroot, VDEV_ALLOC_BIAS_SPECIAL)) {
	print_vdev_tree(zhp, "special", nvroot, 0,
	VDEV_ALLOC_BIAS_SPECIAL, name_flags);
	}

	if (num_logs(poolnvroot) > 0) {
	print_vdev_tree(zhp, "logs", poolnvroot, 0,
	VDEV_ALLOC_BIAS_LOG, name_flags);
	print_vdev_tree(zhp, NULL, nvroot, 0,
	VDEV_ALLOC_BIAS_LOG, name_flags);
	} else if (num_logs(nvroot) > 0) {
	print_vdev_tree(zhp, "logs", nvroot, 0,
	VDEV_ALLOC_BIAS_LOG, name_flags);
	}

	/* Do the same for the caches */
	if (nvlist_lookup_nvlist_array(poolnvroot, ZPOOL_CONFIG_L2CACHE,
	&l2child, &l2children) == 0 && l2children) {
	hadcache = B_TRUE;
	(void) printf(gettext("\tcache\n"));
	for (c = 0; c < l2children; c++) {
	vname = zpool_vdev_name(g_zfs, NULL,
	l2child[c], name_flags);
	(void) printf("\t %s\n", vname);
	free(vname);
	}
	}
	if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
	&l2child, &l2children) == 0 && l2children) {
	if (!hadcache)
	(void) printf(gettext("\tcache\n"));
	for (c = 0; c < l2children; c++) {
	vname = zpool_vdev_name(g_zfs, NULL,
	l2child[c], name_flags);
	(void) printf("\t %s\n", vname);
	free(vname);
	}
	}
	/* And finally the spares */
	if (nvlist_lookup_nvlist_array(poolnvroot, ZPOOL_CONFIG_SPARES,
	&sparechild, &sparechildren) == 0 && sparechildren > 0) {
	hadspare = B_TRUE;
	(void) printf(gettext("\tspares\n"));
	for (c = 0; c < sparechildren; c++) {
	vname = zpool_vdev_name(g_zfs, NULL,
	sparechild[c], name_flags);
	(void) printf("\t %s\n", vname);
	free(vname);
	}
	}
	if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
	&sparechild, &sparechildren) == 0 && sparechildren > 0) {
	if (!hadspare)
	(void) printf(gettext("\tspares\n"));
	for (c = 0; c < sparechildren; c++) {
	vname = zpool_vdev_name(g_zfs, NULL,
	sparechild[c], name_flags);
	(void) printf("\t %s\n", vname);
	free(vname);
	}
	}

	ret = 0;
	} else {
	ret = (zpool_add(zhp, nvroot) != 0);
	}

	nvlist_free(props);
	nvlist_free(nvroot);
	zpool_close(zhp);

	return (ret);
	}

	/*
	* zpool remove [-npsw] <pool> <vdev> ...
	*
	* Removes the given vdev from the pool.
	*/
	int
	zpool_do_remove(int argc, char **argv)
	{
	char *poolname;
	int i, ret = 0;
	zpool_handle_t *zhp = NULL;
	boolean_t stop = B_FALSE;
	int c;
	boolean_t noop = B_FALSE;
	boolean_t parsable = B_FALSE;
	boolean_t wait = B_FALSE;

	/* check options */
	while ((c = getopt(argc, argv, "npsw")) != -1) {
	switch (c) {
	case 'n':
	noop = B_TRUE;
	break;
	case 'p':
	parsable = B_TRUE;
	break;
	case 's':
	stop = B_TRUE;
	break;
	case 'w':
	wait = B_TRUE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* get pool name and check number of arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing pool name argument\n"));
	usage(B_FALSE);
	}

	poolname = argv[0];

	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
	return (1);

	if (stop && noop) {
	(void) fprintf(stderr, gettext("stop request ignored\n"));
	return (0);
	}

	if (stop) {
	if (argc > 1) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}
	if (zpool_vdev_remove_cancel(zhp) != 0)
	ret = 1;
	if (wait) {
	(void) fprintf(stderr, gettext("invalid option "
	"combination: -w cannot be used with -s\n"));
	usage(B_FALSE);
	}
	} else {
	if (argc < 2) {
	(void) fprintf(stderr, gettext("missing device\n"));
	usage(B_FALSE);
	}

	for (i = 1; i < argc; i++) {
	if (noop) {
	uint64_t size;

	if (zpool_vdev_indirect_size(zhp, argv[i],
	&size) != 0) {
	ret = 1;
	break;
	}
	if (parsable) {
	(void) printf("%s %llu\n",
	argv[i], (unsigned long long)size);
	} else {
	char valstr[32];
	zfs_nicenum(size, valstr,
	sizeof (valstr));
	(void) printf("Memory that will be "
	"used after removing %s: %s\n",
	argv[i], valstr);
	}
	} else {
	if (zpool_vdev_remove(zhp, argv[i]) != 0)
	ret = 1;
	}
	}

	if (ret == 0 && wait)
	ret = zpool_wait(zhp, ZPOOL_WAIT_REMOVE);
	}
	zpool_close(zhp);

	return (ret);
	}

	/*
	* zpool labelclear [-f] <vdev>
	*
	* -f Force clearing the label for the vdevs which are members of
	* the exported or foreign pools.
	*
	* Verifies that the vdev is not active and zeros out the label information
	* on the device.
	*/
	int
	zpool_do_labelclear(int argc, char **argv)
	{
	char vdev[MAXPATHLEN];
	char *name = NULL;
	struct stat st;
	int c, fd = -1, ret = 0;
	nvlist_t *config;
	pool_state_t state;
	boolean_t inuse = B_FALSE;
	boolean_t force = B_FALSE;

	/* check options */
	while ((c = getopt(argc, argv, "f")) != -1) {
	switch (c) {
	case 'f':
	force = B_TRUE;
	break;
	default:
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* get vdev name */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing vdev name\n"));
	usage(B_FALSE);
	}
	if (argc > 1) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	/*
	* Check if we were given absolute path and use it as is.
	* Otherwise if the provided vdev name doesn't point to a file,
	* try prepending expected disk paths and partition numbers.
	*/
	(void) strlcpy(vdev, argv[0], sizeof (vdev));
	if (vdev[0] != '/' && stat(vdev, &st) != 0) {
	int error;

	error = zfs_resolve_shortname(argv[0], vdev, MAXPATHLEN);
	if (error == 0 && zfs_dev_is_whole_disk(vdev)) {
	if (zfs_append_partition(vdev, MAXPATHLEN) == -1)
	error = ENOENT;
	}

	if (error \|\| (stat(vdev, &st) != 0)) {
	(void) fprintf(stderr, gettext(
	"failed to find device %s, try specifying absolute "
	"path instead\n"), argv[0]);
	return (1);
	}
	}

	if ((fd = open(vdev, O_RDWR)) < 0) {
	(void) fprintf(stderr, gettext("failed to open %s: %s\n"),
	vdev, strerror(errno));
	return (1);
	}

	/*
	* Flush all dirty pages for the block device. This should not be
	* fatal when the device does not support BLKFLSBUF as would be the
	* case for a file vdev.
	*/
	if ((zfs_dev_flush(fd) != 0) && (errno != ENOTTY))
	(void) fprintf(stderr, gettext("failed to invalidate "
	"cache for %s: %s\n"), vdev, strerror(errno));

	if (zpool_read_label(fd, &config, NULL) != 0) {
	(void) fprintf(stderr,
	gettext("failed to read label from %s\n"), vdev);
	ret = 1;
	goto errout;
	}
	nvlist_free(config);

	ret = zpool_in_use(g_zfs, fd, &state, &name, &inuse);
	if (ret != 0) {
	(void) fprintf(stderr,
	gettext("failed to check state for %s\n"), vdev);
	ret = 1;
	goto errout;
	}

	if (!inuse)
	goto wipe_label;

	switch (state) {
	default:
	case POOL_STATE_ACTIVE:
	case POOL_STATE_SPARE:
	case POOL_STATE_L2CACHE:
	(void) fprintf(stderr, gettext(
	"%s is a member (%s) of pool \"%s\"\n"),
	vdev, zpool_pool_state_to_name(state), name);
	ret = 1;
	goto errout;

	case POOL_STATE_EXPORTED:
	if (force)
	break;
	(void) fprintf(stderr, gettext(
	"use '-f' to override the following error:\n"
	"%s is a member of exported pool \"%s\"\n"),
	vdev, name);
	ret = 1;
	goto errout;

	case POOL_STATE_POTENTIALLY_ACTIVE:
	if (force)
	break;
	(void) fprintf(stderr, gettext(
	"use '-f' to override the following error:\n"
	"%s is a member of potentially active pool \"%s\"\n"),
	vdev, name);
	ret = 1;
	goto errout;

	case POOL_STATE_DESTROYED:
	/* inuse should never be set for a destroyed pool */
	assert(0);
	break;
	}

	wipe_label:
	ret = zpool_clear_label(fd);
	if (ret != 0) {
	(void) fprintf(stderr,
	gettext("failed to clear label for %s\n"), vdev);
	}

	errout:
	free(name);
	(void) close(fd);

	return (ret);
	}

	/*
	* zpool create [-fnd] [-o property=value] ...
	* [-O file-system-property=value] ...
	* [-R root] [-m mountpoint] <pool> <dev> ...
	*
	* -f Force creation, even if devices appear in use
	* -n Do not create the pool, but display the resulting layout if it
	* were to be created.
	* -R Create a pool under an alternate root
	* -m Set default mountpoint for the root dataset. By default it's
	* '/<pool>'
	* -o Set property=value.
	* -o Set feature@feature=enabled\|disabled.
	* -d Don't automatically enable all supported pool features
	* (individual features can be enabled with -o).
	* -O Set fsproperty=value in the pool's root file system
	*
	* Creates the named pool according to the given vdev specification. The
	* bulk of the vdev processing is done in make_root_vdev() in zpool_vdev.c.
	* Once we get the nvlist back from make_root_vdev(), we either print out the
	* contents (if '-n' was specified), or pass it to libzfs to do the creation.
	*/
	int
	zpool_do_create(int argc, char **argv)
	{
	boolean_t force = B_FALSE;
	boolean_t dryrun = B_FALSE;
	boolean_t enable_pool_features = B_TRUE;

	int c;
	nvlist_t *nvroot = NULL;
	char *poolname;
	char *tname = NULL;
	int ret = 1;
	char *altroot = NULL;
	char *compat = NULL;
	char *mountpoint = NULL;
	nvlist_t *fsprops = NULL;
	nvlist_t *props = NULL;
	char *propval;

	/* check options */
	while ((c = getopt(argc, argv, ":fndR:m:o:O:t:")) != -1) {
	switch (c) {
	case 'f':
	force = B_TRUE;
	break;
	case 'n':
	dryrun = B_TRUE;
	break;
	case 'd':
	enable_pool_features = B_FALSE;
	break;
	case 'R':
	altroot = optarg;
	if (add_prop_list(zpool_prop_to_name(
	ZPOOL_PROP_ALTROOT), optarg, &props, B_TRUE))
	goto errout;
	if (add_prop_list_default(zpool_prop_to_name(
	ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
	goto errout;
	break;
	case 'm':
	/* Equivalent to -O mountpoint=optarg */
	mountpoint = optarg;
	break;
	case 'o':
	if ((propval = strchr(optarg, '=')) == NULL) {
	(void) fprintf(stderr, gettext("missing "
	"'=' for -o option\n"));
	goto errout;
	}
	*propval = '\0';
	propval++;

	if (add_prop_list(optarg, propval, &props, B_TRUE))
	goto errout;

	/*
	* If the user is creating a pool that doesn't support
	* feature flags, don't enable any features.
	*/
	if (zpool_name_to_prop(optarg) == ZPOOL_PROP_VERSION) {
	char *end;
	u_longlong_t ver;

	ver = strtoull(propval, &end, 10);
	if (*end == '\0' &&
	ver < SPA_VERSION_FEATURES) {
	enable_pool_features = B_FALSE;
	}
	}
	if (zpool_name_to_prop(optarg) == ZPOOL_PROP_ALTROOT)
	altroot = propval;
	if (zpool_name_to_prop(optarg) ==
	ZPOOL_PROP_COMPATIBILITY)
	compat = propval;
	break;
	case 'O':
	if ((propval = strchr(optarg, '=')) == NULL) {
	(void) fprintf(stderr, gettext("missing "
	"'=' for -O option\n"));
	goto errout;
	}
	*propval = '\0';
	propval++;

	/*
	* Mountpoints are checked and then added later.
	* Uniquely among properties, they can be specified
	* more than once, to avoid conflict with -m.
	*/
	if (0 == strcmp(optarg,
	zfs_prop_to_name(ZFS_PROP_MOUNTPOINT))) {
	mountpoint = propval;
	} else if (add_prop_list(optarg, propval, &fsprops,
	B_FALSE)) {
	goto errout;
	}
	break;
	case 't':
	/*
	* Sanity check temporary pool name.
	*/
	if (strchr(optarg, '/') != NULL) {
	(void) fprintf(stderr, gettext("cannot create "
	"'%s': invalid character '/' in temporary "
	"name\n"), optarg);
	(void) fprintf(stderr, gettext("use 'zfs "
	"create' to create a dataset\n"));
	goto errout;
	}

	if (add_prop_list(zpool_prop_to_name(
	ZPOOL_PROP_TNAME), optarg, &props, B_TRUE))
	goto errout;
	if (add_prop_list_default(zpool_prop_to_name(
	ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
	goto errout;
	tname = optarg;
	break;
	case ':':
	(void) fprintf(stderr, gettext("missing argument for "
	"'%c' option\n"), optopt);
	goto badusage;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	goto badusage;
	}
	}

	argc -= optind;
	argv += optind;

	/* get pool name and check number of arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing pool name argument\n"));
	goto badusage;
	}
	if (argc < 2) {
	(void) fprintf(stderr, gettext("missing vdev specification\n"));
	goto badusage;
	}

	poolname = argv[0];

	/*
	* As a special case, check for use of '/' in the name, and direct the
	* user to use 'zfs create' instead.
	*/
	if (strchr(poolname, '/') != NULL) {
	(void) fprintf(stderr, gettext("cannot create '%s': invalid "
	"character '/' in pool name\n"), poolname);
	(void) fprintf(stderr, gettext("use 'zfs create' to "
	"create a dataset\n"));
	goto errout;
	}

	/* pass off to make_root_vdev for bulk processing */
	nvroot = make_root_vdev(NULL, props, force, !force, B_FALSE, dryrun,
	argc - 1, argv + 1);
	if (nvroot == NULL)
	goto errout;

	/* make_root_vdev() allows 0 toplevel children if there are spares */
	if (!zfs_allocatable_devs(nvroot)) {
	(void) fprintf(stderr, gettext("invalid vdev "
	"specification: at least one toplevel vdev must be "
	"specified\n"));
	goto errout;
	}

	if (altroot != NULL && altroot[0] != '/') {
	(void) fprintf(stderr, gettext("invalid alternate root '%s': "
	"must be an absolute path\n"), altroot);
	goto errout;
	}

	/*
	* Check the validity of the mountpoint and direct the user to use the
	* '-m' mountpoint option if it looks like its in use.
	*/
	if (mountpoint == NULL \|\|
	(strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) != 0 &&
	strcmp(mountpoint, ZFS_MOUNTPOINT_NONE) != 0)) {
	char buf[MAXPATHLEN];
	DIR *dirp;

	if (mountpoint && mountpoint[0] != '/') {
	(void) fprintf(stderr, gettext("invalid mountpoint "
	"'%s': must be an absolute path, 'legacy', or "
	"'none'\n"), mountpoint);
	goto errout;
	}

	if (mountpoint == NULL) {
	if (altroot != NULL)
	(void) snprintf(buf, sizeof (buf), "%s/%s",
	altroot, poolname);
	else
	(void) snprintf(buf, sizeof (buf), "/%s",
	poolname);
	} else {
	if (altroot != NULL)
	(void) snprintf(buf, sizeof (buf), "%s%s",
	altroot, mountpoint);
	else
	(void) snprintf(buf, sizeof (buf), "%s",
	mountpoint);
	}

	if ((dirp = opendir(buf)) == NULL && errno != ENOENT) {
	(void) fprintf(stderr, gettext("mountpoint '%s' : "
	"%s\n"), buf, strerror(errno));
	(void) fprintf(stderr, gettext("use '-m' "
	"option to provide a different default\n"));
	goto errout;
	} else if (dirp) {
	int count = 0;

	while (count < 3 && readdir(dirp) != NULL)
	count++;
	(void) closedir(dirp);

	if (count > 2) {
	(void) fprintf(stderr, gettext("mountpoint "
	"'%s' exists and is not empty\n"), buf);
	(void) fprintf(stderr, gettext("use '-m' "
	"option to provide a "
	"different default\n"));
	goto errout;
	}
	}
	}

	/*
	* Now that the mountpoint's validity has been checked, ensure that
	* the property is set appropriately prior to creating the pool.
	*/
	if (mountpoint != NULL) {
	ret = add_prop_list(zfs_prop_to_name(ZFS_PROP_MOUNTPOINT),
	mountpoint, &fsprops, B_FALSE);
	if (ret != 0)
	goto errout;
	}

	ret = 1;
	if (dryrun) {
	/*
	* For a dry run invocation, print out a basic message and run
	* through all the vdevs in the list and print out in an
	* appropriate hierarchy.
	*/
	(void) printf(gettext("would create '%s' with the "
	"following layout:\n\n"), poolname);

	print_vdev_tree(NULL, poolname, nvroot, 0, "", 0);
	print_vdev_tree(NULL, "dedup", nvroot, 0,
	VDEV_ALLOC_BIAS_DEDUP, 0);
	print_vdev_tree(NULL, "special", nvroot, 0,
	VDEV_ALLOC_BIAS_SPECIAL, 0);
	print_vdev_tree(NULL, "logs", nvroot, 0,
	VDEV_ALLOC_BIAS_LOG, 0);
	print_cache_list(nvroot, 0);
	print_spare_list(nvroot, 0);

	ret = 0;
	} else {
	/*
	* Load in feature set.
	* Note: if compatibility property not given, we'll have
	* NULL, which means 'all features'.
	*/
	boolean_t requested_features[SPA_FEATURES];
	if (zpool_do_load_compat(compat, requested_features) !=
	ZPOOL_COMPATIBILITY_OK)
	goto errout;

	/*
	* props contains list of features to enable.
	* For each feature:
	* - remove it if feature@name=disabled
	* - leave it there if feature@name=enabled
	* - add it if:
	* - enable_pool_features (ie: no '-d' or '-o version')
	* - it's supported by the kernel module
	* - it's in the requested feature set
	* - warn if it's enabled but not in compat
	*/
	for (spa_feature_t i = 0; i < SPA_FEATURES; i++) {
	char propname[MAXPATHLEN];
	char *propval;
	zfeature_info_t *feat = &spa_feature_table[i];

	(void) snprintf(propname, sizeof (propname),
	"feature@%s", feat->fi_uname);

	if (!nvlist_lookup_string(props, propname, &propval)) {
	if (strcmp(propval, ZFS_FEATURE_DISABLED) == 0)
	(void) nvlist_remove_all(props,
	propname);
	if (strcmp(propval,
	ZFS_FEATURE_ENABLED) == 0 &&
	!requested_features[i])
	(void) fprintf(stderr, gettext(
	"Warning: feature \"%s\" enabled "
	"but is not in specified "
	"'compatibility' feature set.\n"),
	feat->fi_uname);
	} else if (
	enable_pool_features &&
	feat->fi_zfs_mod_supported &&
	requested_features[i]) {
	ret = add_prop_list(propname,
	ZFS_FEATURE_ENABLED, &props, B_TRUE);
	if (ret != 0)
	goto errout;
	}
	}

	ret = 1;
	if (zpool_create(g_zfs, poolname,
	nvroot, props, fsprops) == 0) {
	zfs_handle_t *pool = zfs_open(g_zfs,
	tname ? tname : poolname, ZFS_TYPE_FILESYSTEM);
	if (pool != NULL) {
	if (zfs_mount(pool, NULL, 0) == 0) {
	ret = zfs_shareall(pool);
	zfs_commit_all_shares();
	}
	zfs_close(pool);
	}
	} else if (libzfs_errno(g_zfs) == EZFS_INVALIDNAME) {
	(void) fprintf(stderr, gettext("pool name may have "
	"been omitted\n"));
	}
	}

	errout:
	nvlist_free(nvroot);
	nvlist_free(fsprops);
	nvlist_free(props);
	return (ret);
	badusage:
	nvlist_free(fsprops);
	nvlist_free(props);
	usage(B_FALSE);
	return (2);
	}

	/*
	* zpool destroy <pool>
	*
	* -f Forcefully unmount any datasets
	*
	* Destroy the given pool. Automatically unmounts any datasets in the pool.
	*/
	int
	zpool_do_destroy(int argc, char **argv)
	{
	boolean_t force = B_FALSE;
	int c;
	char *pool;
	zpool_handle_t *zhp;
	int ret;

	/* check options */
	while ((c = getopt(argc, argv, "f")) != -1) {
	switch (c) {
	case 'f':
	force = B_TRUE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* check arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing pool argument\n"));
	usage(B_FALSE);
	}
	if (argc > 1) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	pool = argv[0];

	if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL) {
	/*
	* As a special case, check for use of '/' in the name, and
	* direct the user to use 'zfs destroy' instead.
	*/
	if (strchr(pool, '/') != NULL)
	(void) fprintf(stderr, gettext("use 'zfs destroy' to "
	"destroy a dataset\n"));
	return (1);
	}

	if (zpool_disable_datasets(zhp, force) != 0) {
	(void) fprintf(stderr, gettext("could not destroy '%s': "
	"could not unmount datasets\n"), zpool_get_name(zhp));
	zpool_close(zhp);
	return (1);
	}

	/* The history must be logged as part of the export */
	log_history = B_FALSE;

	ret = (zpool_destroy(zhp, history_str) != 0);

	zpool_close(zhp);

	return (ret);
	}

	typedef struct export_cbdata {
	boolean_t force;
	boolean_t hardforce;
	} export_cbdata_t;

	/*
	* Export one pool
	*/
	static int
	zpool_export_one(zpool_handle_t zhp, void data)
	{
	export_cbdata_t *cb = data;

	if (zpool_disable_datasets(zhp, cb->force) != 0)
	return (1);

	/* The history must be logged as part of the export */
	log_history = B_FALSE;

	if (cb->hardforce) {
	if (zpool_export_force(zhp, history_str) != 0)
	return (1);
	} else if (zpool_export(zhp, cb->force, history_str) != 0) {
	return (1);
	}

	return (0);
	}

	/*
	* zpool export [-f] <pool> ...
	*
	* -a Export all pools
	* -f Forcefully unmount datasets
	*
	* Export the given pools. By default, the command will attempt to cleanly
	* unmount any active datasets within the pool. If the '-f' flag is specified,
	* then the datasets will be forcefully unmounted.
	*/
	int
	zpool_do_export(int argc, char **argv)
	{
	export_cbdata_t cb;
	boolean_t do_all = B_FALSE;
	boolean_t force = B_FALSE;
	boolean_t hardforce = B_FALSE;
	int c, ret;

	/* check options */
	while ((c = getopt(argc, argv, "afF")) != -1) {
	switch (c) {
	case 'a':
	do_all = B_TRUE;
	break;
	case 'f':
	force = B_TRUE;
	break;
	case 'F':
	hardforce = B_TRUE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	cb.force = force;
	cb.hardforce = hardforce;
	argc -= optind;
	argv += optind;

	if (do_all) {
	if (argc != 0) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	return (for_each_pool(argc, argv, B_TRUE, NULL,
	B_FALSE, zpool_export_one, &cb));
	}

	/* check arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing pool argument\n"));
	usage(B_FALSE);
	}

	ret = for_each_pool(argc, argv, B_TRUE, NULL, B_FALSE, zpool_export_one,
	&cb);

	return (ret);
	}

	/*
	* Given a vdev configuration, determine the maximum width needed for the device
	* name column.
	*/
	static int
	max_width(zpool_handle_t zhp, nvlist_t nv, int depth, int max,
	int name_flags)
	{
	char *name;
	nvlist_t **child;
	uint_t c, children;
	int ret;

	name = zpool_vdev_name(g_zfs, zhp, nv, name_flags);
	if (strlen(name) + depth > max)
	max = strlen(name) + depth;

	free(name);

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
	&child, &children) == 0) {
	for (c = 0; c < children; c++)
	if ((ret = max_width(zhp, child[c], depth + 2,
	max, name_flags)) > max)
	max = ret;
	}

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
	&child, &children) == 0) {
	for (c = 0; c < children; c++)
	if ((ret = max_width(zhp, child[c], depth + 2,
	max, name_flags)) > max)
	max = ret;
	}

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
	&child, &children) == 0) {
	for (c = 0; c < children; c++)
	if ((ret = max_width(zhp, child[c], depth + 2,
	max, name_flags)) > max)
	max = ret;
	}

	return (max);
	}

	typedef struct spare_cbdata {
	uint64_t cb_guid;
	zpool_handle_t *cb_zhp;
	} spare_cbdata_t;

	static boolean_t
	find_vdev(nvlist_t *nv, uint64_t search)
	{
	uint64_t guid;
	nvlist_t **child;
	uint_t c, children;

	if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) == 0 &&
	search == guid)
	return (B_TRUE);

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
	&child, &children) == 0) {
	for (c = 0; c < children; c++)
	if (find_vdev(child[c], search))
	return (B_TRUE);
	}

	return (B_FALSE);
	}

	static int
	find_spare(zpool_handle_t zhp, void data)
	{
	spare_cbdata_t *cbp = data;
	nvlist_t config, nvroot;

	config = zpool_get_config(zhp, NULL);
	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
	&nvroot) == 0);

	if (find_vdev(nvroot, cbp->cb_guid)) {
	cbp->cb_zhp = zhp;
	return (1);
	}

	zpool_close(zhp);
	return (0);
	}

	typedef struct status_cbdata {
	int cb_count;
	int cb_name_flags;
	int cb_namewidth;
	boolean_t cb_allpools;
	boolean_t cb_verbose;
	boolean_t cb_literal;
	boolean_t cb_explain;
	boolean_t cb_first;
	boolean_t cb_dedup_stats;
	boolean_t cb_print_status;
	boolean_t cb_print_slow_ios;
	boolean_t cb_print_vdev_init;
	boolean_t cb_print_vdev_trim;
	vdev_cmd_data_list_t *vcdl;
	} status_cbdata_t;

	/* Return 1 if string is NULL, empty, or whitespace; return 0 otherwise. */
	static int
	is_blank_str(char *str)
	{
	while (str != NULL && *str != '\0') {
	if (!isblank(*str))
	return (0);
	str++;
	}
	return (1);
	}

	/* Print command output lines for specific vdev in a specific pool */
	static void
	zpool_print_cmd(vdev_cmd_data_list_t vcdl, const char pool, char *path)
	{
	vdev_cmd_data_t *data;
	int i, j;
	char *val;

	for (i = 0; i < vcdl->count; i++) {
	if ((strcmp(vcdl->data[i].path, path) != 0) \|\|
	(strcmp(vcdl->data[i].pool, pool) != 0)) {
	/* Not the vdev we're looking for */
	continue;
	}

	data = &vcdl->data[i];
	/* Print out all the output values for this vdev */
	for (j = 0; j < vcdl->uniq_cols_cnt; j++) {
	val = NULL;
	/* Does this vdev have values for this column? */
	for (int k = 0; k < data->cols_cnt; k++) {
	if (strcmp(data->cols[k],
	vcdl->uniq_cols[j]) == 0) {
	/* yes it does, record the value */
	val = data->lines[k];
	break;
	}
	}
	/*
	* Mark empty values with dashes to make output
	* awk-able.
	*/
	if (val == NULL \|\| is_blank_str(val))
	val = "-";

	printf("%*s", vcdl->uniq_cols_width[j], val);
	if (j < vcdl->uniq_cols_cnt - 1)
	printf(" ");
	}

	/* Print out any values that aren't in a column at the end */
	for (j = data->cols_cnt; j < data->lines_cnt; j++) {
	/* Did we have any columns? If so print a spacer. */
	if (vcdl->uniq_cols_cnt > 0)
	printf(" ");

	val = data->lines[j];
	printf("%s", val ? val : "");
	}
	break;
	}
	}

	/*
	* Print vdev initialization status for leaves
	*/
	static void
	print_status_initialize(vdev_stat_t *vs, boolean_t verbose)
	{
	if (verbose) {
	if ((vs->vs_initialize_state == VDEV_INITIALIZE_ACTIVE \|\|
	vs->vs_initialize_state == VDEV_INITIALIZE_SUSPENDED \|\|
	vs->vs_initialize_state == VDEV_INITIALIZE_COMPLETE) &&
	!vs->vs_scan_removing) {
	char zbuf[1024];
	char tbuf[256];
	struct tm zaction_ts;

	time_t t = vs->vs_initialize_action_time;
	int initialize_pct = 100;
	if (vs->vs_initialize_state !=
	VDEV_INITIALIZE_COMPLETE) {
	initialize_pct = (vs->vs_initialize_bytes_done *
	100 / (vs->vs_initialize_bytes_est + 1));
	}

	(void) localtime_r(&t, &zaction_ts);
	(void) strftime(tbuf, sizeof (tbuf), "%c", &zaction_ts);

	switch (vs->vs_initialize_state) {
	case VDEV_INITIALIZE_SUSPENDED:
	(void) snprintf(zbuf, sizeof (zbuf), ", %s %s",
	gettext("suspended, started at"), tbuf);
	break;
	case VDEV_INITIALIZE_ACTIVE:
	(void) snprintf(zbuf, sizeof (zbuf), ", %s %s",
	gettext("started at"), tbuf);
	break;
	case VDEV_INITIALIZE_COMPLETE:
	(void) snprintf(zbuf, sizeof (zbuf), ", %s %s",
	gettext("completed at"), tbuf);
	break;
	}

	(void) printf(gettext(" (%d%% initialized%s)"),
	initialize_pct, zbuf);
	} else {
	(void) printf(gettext(" (uninitialized)"));
	}
	} else if (vs->vs_initialize_state == VDEV_INITIALIZE_ACTIVE) {
	(void) printf(gettext(" (initializing)"));
	}
	}

	/*
	* Print vdev TRIM status for leaves
	*/
	static void
	print_status_trim(vdev_stat_t *vs, boolean_t verbose)
	{
	if (verbose) {
	if ((vs->vs_trim_state == VDEV_TRIM_ACTIVE \|\|
	vs->vs_trim_state == VDEV_TRIM_SUSPENDED \|\|
	vs->vs_trim_state == VDEV_TRIM_COMPLETE) &&
	!vs->vs_scan_removing) {
	char zbuf[1024];
	char tbuf[256];
	struct tm zaction_ts;

	time_t t = vs->vs_trim_action_time;
	int trim_pct = 100;
	if (vs->vs_trim_state != VDEV_TRIM_COMPLETE) {
	trim_pct = (vs->vs_trim_bytes_done *
	100 / (vs->vs_trim_bytes_est + 1));
	}

	(void) localtime_r(&t, &zaction_ts);
	(void) strftime(tbuf, sizeof (tbuf), "%c", &zaction_ts);

	switch (vs->vs_trim_state) {
	case VDEV_TRIM_SUSPENDED:
	(void) snprintf(zbuf, sizeof (zbuf), ", %s %s",
	gettext("suspended, started at"), tbuf);
	break;
	case VDEV_TRIM_ACTIVE:
	(void) snprintf(zbuf, sizeof (zbuf), ", %s %s",
	gettext("started at"), tbuf);
	break;
	case VDEV_TRIM_COMPLETE:
	(void) snprintf(zbuf, sizeof (zbuf), ", %s %s",
	gettext("completed at"), tbuf);
	break;
	}

	(void) printf(gettext(" (%d%% trimmed%s)"),
	trim_pct, zbuf);
	} else if (vs->vs_trim_notsup) {
	(void) printf(gettext(" (trim unsupported)"));
	} else {
	(void) printf(gettext(" (untrimmed)"));
	}
	} else if (vs->vs_trim_state == VDEV_TRIM_ACTIVE) {
	(void) printf(gettext(" (trimming)"));
	}
	}

	/*
	* Return the color associated with a health string. This includes returning
	* NULL for no color change.
	*/
	static char *
	health_str_to_color(const char *health)
	{
	if (strcmp(health, gettext("FAULTED")) == 0 \|\|
	strcmp(health, gettext("SUSPENDED")) == 0 \|\|
	strcmp(health, gettext("UNAVAIL")) == 0) {
	return (ANSI_RED);
	}

	if (strcmp(health, gettext("OFFLINE")) == 0 \|\|
	strcmp(health, gettext("DEGRADED")) == 0 \|\|
	strcmp(health, gettext("REMOVED")) == 0) {
	return (ANSI_YELLOW);
	}

	return (NULL);
	}

	/*
	* Print out configuration state as requested by status_callback.
	*/
	static void
	print_status_config(zpool_handle_t zhp, status_cbdata_t cb, const char *name,
	nvlist_t nv, int depth, boolean_t isspare, vdev_rebuild_stat_t vrs)
	{
	nvlist_t *child, root;
	uint_t c, i, vsc, children;
	pool_scan_stat_t *ps = NULL;
	vdev_stat_t *vs;
	char rbuf[6], wbuf[6], cbuf[6];
	char *vname;
	uint64_t notpresent;
	spare_cbdata_t spare_cb;
	const char *state;
	char *type;
	char *path = NULL;
	char rcolor = NULL, wcolor = NULL, *ccolor = NULL;

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
	&child, &children) != 0)
	children = 0;

	verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
	(uint64_t **)&vs, &vsc) == 0);

	verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0);

	if (strcmp(type, VDEV_TYPE_INDIRECT) == 0)
	return;

	state = zpool_state_to_name(vs->vs_state, vs->vs_aux);

	if (isspare) {
	/*
	* For hot spares, we use the terms 'INUSE' and 'AVAILABLE' for
	* online drives.
	*/
	if (vs->vs_aux == VDEV_AUX_SPARED)
	state = gettext("INUSE");
	else if (vs->vs_state == VDEV_STATE_HEALTHY)
	state = gettext("AVAIL");
	}

	printf_color(health_str_to_color(state),
	"\t%s%-s %-8s", depth, "", cb->cb_namewidth - depth,
	name, state);

	if (!isspare) {
	if (vs->vs_read_errors)
	rcolor = ANSI_RED;

	if (vs->vs_write_errors)
	wcolor = ANSI_RED;

	if (vs->vs_checksum_errors)
	ccolor = ANSI_RED;

	if (cb->cb_literal) {
	printf(" ");
	printf_color(rcolor, "%5llu",
	(u_longlong_t)vs->vs_read_errors);
	printf(" ");
	printf_color(wcolor, "%5llu",
	(u_longlong_t)vs->vs_write_errors);
	printf(" ");
	printf_color(ccolor, "%5llu",
	(u_longlong_t)vs->vs_checksum_errors);
	} else {
	zfs_nicenum(vs->vs_read_errors, rbuf, sizeof (rbuf));
	zfs_nicenum(vs->vs_write_errors, wbuf, sizeof (wbuf));
	zfs_nicenum(vs->vs_checksum_errors, cbuf,
	sizeof (cbuf));
	printf(" ");
	printf_color(rcolor, "%5s", rbuf);
	printf(" ");
	printf_color(wcolor, "%5s", wbuf);
	printf(" ");
	printf_color(ccolor, "%5s", cbuf);
	}
	if (cb->cb_print_slow_ios) {
	if (children == 0) {
	/* Only leafs vdevs have slow IOs */
	zfs_nicenum(vs->vs_slow_ios, rbuf,
	sizeof (rbuf));
	} else {
	snprintf(rbuf, sizeof (rbuf), "-");
	}

	if (cb->cb_literal)
	printf(" %5llu", (u_longlong_t)vs->vs_slow_ios);
	else
	printf(" %5s", rbuf);
	}
	}

	if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT,
	&notpresent) == 0) {
	verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0);
	(void) printf(" %s %s", gettext("was"), path);
	} else if (vs->vs_aux != 0) {
	(void) printf(" ");
	color_start(ANSI_RED);
	switch (vs->vs_aux) {
	case VDEV_AUX_OPEN_FAILED:
	(void) printf(gettext("cannot open"));
	break;

	case VDEV_AUX_BAD_GUID_SUM:
	(void) printf(gettext("missing device"));
	break;

	case VDEV_AUX_NO_REPLICAS:
	(void) printf(gettext("insufficient replicas"));
	break;

	case VDEV_AUX_VERSION_NEWER:
	(void) printf(gettext("newer version"));
	break;

	case VDEV_AUX_UNSUP_FEAT:
	(void) printf(gettext("unsupported feature(s)"));
	break;

	case VDEV_AUX_ASHIFT_TOO_BIG:
	(void) printf(gettext("unsupported minimum blocksize"));
	break;

	case VDEV_AUX_SPARED:
	verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID,
	&spare_cb.cb_guid) == 0);
	if (zpool_iter(g_zfs, find_spare, &spare_cb) == 1) {
	if (strcmp(zpool_get_name(spare_cb.cb_zhp),
	zpool_get_name(zhp)) == 0)
	(void) printf(gettext("currently in "
	"use"));
	else
	(void) printf(gettext("in use by "
	"pool '%s'"),
	zpool_get_name(spare_cb.cb_zhp));
	zpool_close(spare_cb.cb_zhp);
	} else {
	(void) printf(gettext("currently in use"));
	}
	break;

	case VDEV_AUX_ERR_EXCEEDED:
	(void) printf(gettext("too many errors"));
	break;

	case VDEV_AUX_IO_FAILURE:
	(void) printf(gettext("experienced I/O failures"));
	break;

	case VDEV_AUX_BAD_LOG:
	(void) printf(gettext("bad intent log"));
	break;

	case VDEV_AUX_EXTERNAL:
	(void) printf(gettext("external device fault"));
	break;

	case VDEV_AUX_SPLIT_POOL:
	(void) printf(gettext("split into new pool"));
	break;

	case VDEV_AUX_ACTIVE:
	(void) printf(gettext("currently in use"));
	break;

	case VDEV_AUX_CHILDREN_OFFLINE:
	(void) printf(gettext("all children offline"));
	break;

	case VDEV_AUX_BAD_LABEL:
	(void) printf(gettext("invalid label"));
	break;

	default:
	(void) printf(gettext("corrupted data"));
	break;
	}
	color_end();
	} else if (children == 0 && !isspare &&
	getenv("ZPOOL_STATUS_NON_NATIVE_ASHIFT_IGNORE") == NULL &&
	VDEV_STAT_VALID(vs_physical_ashift, vsc) &&
	vs->vs_configured_ashift < vs->vs_physical_ashift) {
	(void) printf(
	gettext(" block size: %dB configured, %dB native"),
	1 << vs->vs_configured_ashift, 1 << vs->vs_physical_ashift);
	}

	/* The root vdev has the scrub/resilver stats */
	root = fnvlist_lookup_nvlist(zpool_get_config(zhp, NULL),
	ZPOOL_CONFIG_VDEV_TREE);
	(void) nvlist_lookup_uint64_array(root, ZPOOL_CONFIG_SCAN_STATS,
	(uint64_t **)&ps, &c);

	if (ps != NULL && ps->pss_state == DSS_SCANNING && children == 0) {
	if (vs->vs_scan_processed != 0) {
	(void) printf(gettext(" (%s)"),
	(ps->pss_func == POOL_SCAN_RESILVER) ?
	"resilvering" : "repairing");
	} else if (vs->vs_resilver_deferred) {
	(void) printf(gettext(" (awaiting resilver)"));
	}
	}

	/* The top-level vdevs have the rebuild stats */
	if (vrs != NULL && vrs->vrs_state == VDEV_REBUILD_ACTIVE &&
	children == 0) {
	if (vs->vs_rebuild_processed != 0) {
	(void) printf(gettext(" (resilvering)"));
	}
	}

	if (cb->vcdl != NULL) {
	if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0) {
	printf(" ");
	zpool_print_cmd(cb->vcdl, zpool_get_name(zhp), path);
	}
	}

	/* Display vdev initialization and trim status for leaves. */
	if (children == 0) {
	print_status_initialize(vs, cb->cb_print_vdev_init);
	print_status_trim(vs, cb->cb_print_vdev_trim);
	}

	(void) printf("\n");

	for (c = 0; c < children; c++) {
	uint64_t islog = B_FALSE, ishole = B_FALSE;

	/* Don't print logs or holes here */
	(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
	&islog);
	(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE,
	&ishole);
	if (islog \|\| ishole)
	continue;
	/* Only print normal classes here */
	if (nvlist_exists(child[c], ZPOOL_CONFIG_ALLOCATION_BIAS))
	continue;

	/* Provide vdev_rebuild_stats to children if available */
	if (vrs == NULL) {
	(void) nvlist_lookup_uint64_array(nv,
	ZPOOL_CONFIG_REBUILD_STATS,
	(uint64_t **)&vrs, &i);
	}

	vname = zpool_vdev_name(g_zfs, zhp, child[c],
	cb->cb_name_flags \| VDEV_NAME_TYPE_ID);
	print_status_config(zhp, cb, vname, child[c], depth + 2,
	isspare, vrs);
	free(vname);
	}
	}

	/*
	* Print the configuration of an exported pool. Iterate over all vdevs in the
	* pool, printing out the name and status for each one.
	*/
	static void
	print_import_config(status_cbdata_t cb, const char name, nvlist_t *nv,
	int depth)
	{
	nvlist_t **child;
	uint_t c, children;
	vdev_stat_t *vs;
	char type, vname;

	verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0);
	if (strcmp(type, VDEV_TYPE_MISSING) == 0 \|\|
	strcmp(type, VDEV_TYPE_HOLE) == 0)
	return;

	verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
	(uint64_t **)&vs, &c) == 0);

	(void) printf("\t%s%-s", depth, "", cb->cb_namewidth - depth, name);
	(void) printf(" %s", zpool_state_to_name(vs->vs_state, vs->vs_aux));

	if (vs->vs_aux != 0) {
	(void) printf(" ");

	switch (vs->vs_aux) {
	case VDEV_AUX_OPEN_FAILED:
	(void) printf(gettext("cannot open"));
	break;

	case VDEV_AUX_BAD_GUID_SUM:
	(void) printf(gettext("missing device"));
	break;

	case VDEV_AUX_NO_REPLICAS:
	(void) printf(gettext("insufficient replicas"));
	break;

	case VDEV_AUX_VERSION_NEWER:
	(void) printf(gettext("newer version"));
	break;

	case VDEV_AUX_UNSUP_FEAT:
	(void) printf(gettext("unsupported feature(s)"));
	break;

	case VDEV_AUX_ERR_EXCEEDED:
	(void) printf(gettext("too many errors"));
	break;

	case VDEV_AUX_ACTIVE:
	(void) printf(gettext("currently in use"));
	break;

	case VDEV_AUX_CHILDREN_OFFLINE:
	(void) printf(gettext("all children offline"));
	break;

	case VDEV_AUX_BAD_LABEL:
	(void) printf(gettext("invalid label"));
	break;

	default:
	(void) printf(gettext("corrupted data"));
	break;
	}
	}
	(void) printf("\n");

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
	&child, &children) != 0)
	return;

	for (c = 0; c < children; c++) {
	uint64_t is_log = B_FALSE;

	(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
	&is_log);
	if (is_log)
	continue;
	if (nvlist_exists(child[c], ZPOOL_CONFIG_ALLOCATION_BIAS))
	continue;

	vname = zpool_vdev_name(g_zfs, NULL, child[c],
	cb->cb_name_flags \| VDEV_NAME_TYPE_ID);
	print_import_config(cb, vname, child[c], depth + 2);
	free(vname);
	}

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
	&child, &children) == 0) {
	(void) printf(gettext("\tcache\n"));
	for (c = 0; c < children; c++) {
	vname = zpool_vdev_name(g_zfs, NULL, child[c],
	cb->cb_name_flags);
	(void) printf("\t %s\n", vname);
	free(vname);
	}
	}

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
	&child, &children) == 0) {
	(void) printf(gettext("\tspares\n"));
	for (c = 0; c < children; c++) {
	vname = zpool_vdev_name(g_zfs, NULL, child[c],
	cb->cb_name_flags);
	(void) printf("\t %s\n", vname);
	free(vname);
	}
	}
	}

	/*
	* Print specialized class vdevs.
	*
	* These are recorded as top level vdevs in the main pool child array
	* but with "is_log" set to 1 or an "alloc_bias" string. We use either
	* print_status_config() or print_import_config() to print the top level
	* class vdevs then any of their children (eg mirrored slogs) are printed
	* recursively - which works because only the top level vdev is marked.
	*/
	static void
	print_class_vdevs(zpool_handle_t zhp, status_cbdata_t cb, nvlist_t *nv,
	const char *class)
	{
	uint_t c, children;
	nvlist_t **child;
	boolean_t printed = B_FALSE;

	assert(zhp != NULL \|\| !cb->cb_verbose);

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, &child,
	&children) != 0)
	return;

	for (c = 0; c < children; c++) {
	uint64_t is_log = B_FALSE;
	char *bias = NULL;
	char *type = NULL;

	(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
	&is_log);

	if (is_log) {
	bias = VDEV_ALLOC_CLASS_LOGS;
	} else {
	(void) nvlist_lookup_string(child[c],
	ZPOOL_CONFIG_ALLOCATION_BIAS, &bias);
	(void) nvlist_lookup_string(child[c],
	ZPOOL_CONFIG_TYPE, &type);
	}

	if (bias == NULL \|\| strcmp(bias, class) != 0)
	continue;
	if (!is_log && strcmp(type, VDEV_TYPE_INDIRECT) == 0)
	continue;

	if (!printed) {
	(void) printf("\t%s\t\n", gettext(class));
	printed = B_TRUE;
	}

	char *name = zpool_vdev_name(g_zfs, zhp, child[c],
	cb->cb_name_flags \| VDEV_NAME_TYPE_ID);
	if (cb->cb_print_status)
	print_status_config(zhp, cb, name, child[c], 2,
	B_FALSE, NULL);
	else
	print_import_config(cb, name, child[c], 2);
	free(name);
	}
	}

	/*
	* Display the status for the given pool.
	*/
	static int
	show_import(nvlist_t *config, boolean_t report_error)
	{
	uint64_t pool_state;
	vdev_stat_t *vs;
	char *name;
	uint64_t guid;
	uint64_t hostid = 0;
	char *msgid;
	char *hostname = "unknown";
	nvlist_t nvroot, nvinfo;
	zpool_status_t reason;
	zpool_errata_t errata;
	const char *health;
	uint_t vsc;
	char *comment;
	status_cbdata_t cb = { 0 };

	verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
	&name) == 0);
	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
	&guid) == 0);
	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
	&pool_state) == 0);
	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
	&nvroot) == 0);

	verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS,
	(uint64_t **)&vs, &vsc) == 0);
	health = zpool_state_to_name(vs->vs_state, vs->vs_aux);

	reason = zpool_import_status(config, &msgid, &errata);

	/*
	* If we're importing using a cachefile, then we won't report any
	* errors unless we are in the scan phase of the import.
	*/
	if (reason != ZPOOL_STATUS_OK && !report_error)
	return (reason);

	(void) printf(gettext(" pool: %s\n"), name);
	(void) printf(gettext(" id: %llu\n"), (u_longlong_t)guid);
	(void) printf(gettext(" state: %s"), health);
	if (pool_state == POOL_STATE_DESTROYED)
	(void) printf(gettext(" (DESTROYED)"));
	(void) printf("\n");

	switch (reason) {
	case ZPOOL_STATUS_MISSING_DEV_R:
	case ZPOOL_STATUS_MISSING_DEV_NR:
	case ZPOOL_STATUS_BAD_GUID_SUM:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices are "
	"missing from the system.\n"));
	break;

	case ZPOOL_STATUS_CORRUPT_LABEL_R:
	case ZPOOL_STATUS_CORRUPT_LABEL_NR:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices contains"
	" corrupted data.\n"));
	break;

	case ZPOOL_STATUS_CORRUPT_DATA:
	(void) printf(
	gettext(" status: The pool data is corrupted.\n"));
	break;

	case ZPOOL_STATUS_OFFLINE_DEV:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices "
	"are offlined.\n"));
	break;

	case ZPOOL_STATUS_CORRUPT_POOL:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("The pool metadata is "
	"corrupted.\n"));
	break;

	case ZPOOL_STATUS_VERSION_OLDER:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("The pool is formatted using "
	"a legacy on-disk version.\n"));
	break;

	case ZPOOL_STATUS_VERSION_NEWER:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("The pool is formatted using "
	"an incompatible version.\n"));
	break;

	case ZPOOL_STATUS_FEAT_DISABLED:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("Some supported "
	"features are not enabled on the pool.\n\t"
	"(Note that they may be intentionally disabled "
	"if the\n\t'compatibility' property is set.)\n"));
	break;

	case ZPOOL_STATUS_COMPATIBILITY_ERR:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("Error reading or parsing "
	"the file(s) indicated by the 'compatibility'\n"
	"property.\n"));
	break;

	case ZPOOL_STATUS_INCOMPATIBLE_FEAT:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more features "
	"are enabled on the pool despite not being\n"
	"requested by the 'compatibility' property.\n"));
	break;

	case ZPOOL_STATUS_UNSUP_FEAT_READ:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("The pool uses the following "
	"feature(s) not supported on this system:\n"));
	color_start(ANSI_YELLOW);
	zpool_print_unsup_feat(config);
	color_end();
	break;

	case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("The pool can only be "
	"accessed in read-only mode on this system. It\n\tcannot be"
	" accessed in read-write mode because it uses the "
	"following\n\tfeature(s) not supported on this system:\n"));
	color_start(ANSI_YELLOW);
	zpool_print_unsup_feat(config);
	color_end();
	break;

	case ZPOOL_STATUS_HOSTID_ACTIVE:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("The pool is currently "
	"imported by another system.\n"));
	break;

	case ZPOOL_STATUS_HOSTID_REQUIRED:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("The pool has the "
	"multihost property on. It cannot\n\tbe safely imported "
	"when the system hostid is not set.\n"));
	break;

	case ZPOOL_STATUS_HOSTID_MISMATCH:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("The pool was last accessed "
	"by another system.\n"));
	break;

	case ZPOOL_STATUS_FAULTED_DEV_R:
	case ZPOOL_STATUS_FAULTED_DEV_NR:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices are "
	"faulted.\n"));
	break;

	case ZPOOL_STATUS_BAD_LOG:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("An intent log record cannot "
	"be read.\n"));
	break;

	case ZPOOL_STATUS_RESILVERING:
	case ZPOOL_STATUS_REBUILDING:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices were "
	"being resilvered.\n"));
	break;

	case ZPOOL_STATUS_ERRATA:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("Errata #%d detected.\n"),
	errata);
	break;

	case ZPOOL_STATUS_NON_NATIVE_ASHIFT:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices are "
	"configured to use a non-native block size.\n"
	"\tExpect reduced performance.\n"));
	break;

	default:
	/*
	* No other status can be seen when importing pools.
	*/
	assert(reason == ZPOOL_STATUS_OK);
	}

	/*
	* Print out an action according to the overall state of the pool.
	*/
	if (vs->vs_state == VDEV_STATE_HEALTHY) {
	if (reason == ZPOOL_STATUS_VERSION_OLDER \|\|
	reason == ZPOOL_STATUS_FEAT_DISABLED) {
	(void) printf(gettext(" action: The pool can be "
	"imported using its name or numeric identifier, "
	"though\n\tsome features will not be available "
	"without an explicit 'zpool upgrade'.\n"));
	} else if (reason == ZPOOL_STATUS_COMPATIBILITY_ERR) {
	(void) printf(gettext(" action: The pool can be "
	"imported using its name or numeric\n\tidentifier, "
	"though the file(s) indicated by its "
	"'compatibility'\n\tproperty cannot be parsed at "
	"this time.\n"));
	} else if (reason == ZPOOL_STATUS_HOSTID_MISMATCH) {
	(void) printf(gettext(" action: The pool can be "
	"imported using its name or numeric "
	"identifier and\n\tthe '-f' flag.\n"));
	} else if (reason == ZPOOL_STATUS_ERRATA) {
	switch (errata) {
	case ZPOOL_ERRATA_NONE:
	break;

	case ZPOOL_ERRATA_ZOL_2094_SCRUB:
	(void) printf(gettext(" action: The pool can "
	"be imported using its name or numeric "
	"identifier,\n\thowever there is a compat"
	"ibility issue which should be corrected"
	"\n\tby running 'zpool scrub'\n"));
	break;

	case ZPOOL_ERRATA_ZOL_2094_ASYNC_DESTROY:
	(void) printf(gettext(" action: The pool can"
	"not be imported with this version of ZFS "
	"due to\n\tan active asynchronous destroy. "
	"Revert to an earlier version\n\tand "
	"allow the destroy to complete before "
	"updating.\n"));
	break;

	case ZPOOL_ERRATA_ZOL_6845_ENCRYPTION:
	(void) printf(gettext(" action: Existing "
	"encrypted datasets contain an on-disk "
	"incompatibility, which\n\tneeds to be "
	"corrected. Backup these datasets to new "
	"encrypted datasets\n\tand destroy the "
	"old ones.\n"));
	break;

	case ZPOOL_ERRATA_ZOL_8308_ENCRYPTION:
	(void) printf(gettext(" action: Existing "
	"encrypted snapshots and bookmarks contain "
	"an on-disk\n\tincompatibility. This may "
	"cause on-disk corruption if they are used"
	"\n\twith 'zfs recv'. To correct the "
	"issue, enable the bookmark_v2 feature.\n\t"
	"No additional action is needed if there "
	"are no encrypted snapshots or\n\t"
	"bookmarks. If preserving the encrypted "
	"snapshots and bookmarks is\n\trequired, "
	"use a non-raw send to backup and restore "
	"them. Alternately,\n\tthey may be removed"
	" to resolve the incompatibility.\n"));
	break;
	default:
	/*
	* All errata must contain an action message.
	*/
	assert(0);
	}
	} else {
	(void) printf(gettext(" action: The pool can be "
	"imported using its name or numeric "
	"identifier.\n"));
	}
	} else if (vs->vs_state == VDEV_STATE_DEGRADED) {
	(void) printf(gettext(" action: The pool can be imported "
	"despite missing or damaged devices. The\n\tfault "
	"tolerance of the pool may be compromised if imported.\n"));
	} else {
	switch (reason) {
	case ZPOOL_STATUS_VERSION_NEWER:
	(void) printf(gettext(" action: The pool cannot be "
	"imported. Access the pool on a system running "
	"newer\n\tsoftware, or recreate the pool from "
	"backup.\n"));
	break;
	case ZPOOL_STATUS_UNSUP_FEAT_READ:
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("The pool cannot be "
	"imported. Access the pool on a system that "
	"supports\n\tthe required feature(s), or recreate "
	"the pool from backup.\n"));
	break;
	case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("The pool cannot be "
	"imported in read-write mode. Import the pool "
	"with\n"
	"\t\"-o readonly=on\", access the pool on a system "
	"that supports the\n\trequired feature(s), or "
	"recreate the pool from backup.\n"));
	break;
	case ZPOOL_STATUS_MISSING_DEV_R:
	case ZPOOL_STATUS_MISSING_DEV_NR:
	case ZPOOL_STATUS_BAD_GUID_SUM:
	(void) printf(gettext(" action: The pool cannot be "
	"imported. Attach the missing\n\tdevices and try "
	"again.\n"));
	break;
	case ZPOOL_STATUS_HOSTID_ACTIVE:
	VERIFY0(nvlist_lookup_nvlist(config,
	ZPOOL_CONFIG_LOAD_INFO, &nvinfo));

	if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_HOSTNAME))
	hostname = fnvlist_lookup_string(nvinfo,
	ZPOOL_CONFIG_MMP_HOSTNAME);

	if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_HOSTID))
	hostid = fnvlist_lookup_uint64(nvinfo,
	ZPOOL_CONFIG_MMP_HOSTID);

	(void) printf(gettext(" action: The pool must be "
	"exported from %s (hostid=%lx)\n\tbefore it "
	"can be safely imported.\n"), hostname,
	(unsigned long) hostid);
	break;
	case ZPOOL_STATUS_HOSTID_REQUIRED:
	(void) printf(gettext(" action: Set a unique system "
	"hostid with the zgenhostid(8) command.\n"));
	break;
	default:
	(void) printf(gettext(" action: The pool cannot be "
	"imported due to damaged devices or data.\n"));
	}
	}

	/* Print the comment attached to the pool. */
	if (nvlist_lookup_string(config, ZPOOL_CONFIG_COMMENT, &comment) == 0)
	(void) printf(gettext("comment: %s\n"), comment);

	/*
	* If the state is "closed" or "can't open", and the aux state
	* is "corrupt data":
	*/
	if (((vs->vs_state == VDEV_STATE_CLOSED) \|\|
	(vs->vs_state == VDEV_STATE_CANT_OPEN)) &&
	(vs->vs_aux == VDEV_AUX_CORRUPT_DATA)) {
	if (pool_state == POOL_STATE_DESTROYED)
	(void) printf(gettext("\tThe pool was destroyed, "
	"but can be imported using the '-Df' flags.\n"));
	else if (pool_state != POOL_STATE_EXPORTED)
	(void) printf(gettext("\tThe pool may be active on "
	"another system, but can be imported using\n\t"
	"the '-f' flag.\n"));
	}

	if (msgid != NULL) {
	(void) printf(gettext(
	" see: https://openzfs.github.io/openzfs-docs/msg/%s\n"),
	msgid);
	}

	(void) printf(gettext(" config:\n\n"));

	cb.cb_namewidth = max_width(NULL, nvroot, 0, strlen(name),
	VDEV_NAME_TYPE_ID);
	if (cb.cb_namewidth < 10)
	cb.cb_namewidth = 10;

	print_import_config(&cb, name, nvroot, 0);

	print_class_vdevs(NULL, &cb, nvroot, VDEV_ALLOC_BIAS_DEDUP);
	print_class_vdevs(NULL, &cb, nvroot, VDEV_ALLOC_BIAS_SPECIAL);
	print_class_vdevs(NULL, &cb, nvroot, VDEV_ALLOC_CLASS_LOGS);

	if (reason == ZPOOL_STATUS_BAD_GUID_SUM) {
	(void) printf(gettext("\n\tAdditional devices are known to "
	"be part of this pool, though their\n\texact "
	"configuration cannot be determined.\n"));
	}
	return (0);
	}

	static boolean_t
	zfs_force_import_required(nvlist_t *config)
	{
	uint64_t state;
	uint64_t hostid = 0;
	nvlist_t *nvinfo;

	state = fnvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE);
	(void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_HOSTID, &hostid);

	if (state != POOL_STATE_EXPORTED && hostid != get_system_hostid())
	return (B_TRUE);

	nvinfo = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO);
	if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_STATE)) {
	mmp_state_t mmp_state = fnvlist_lookup_uint64(nvinfo,
	ZPOOL_CONFIG_MMP_STATE);

	if (mmp_state != MMP_STATE_INACTIVE)
	return (B_TRUE);
	}

	return (B_FALSE);
	}

	/*
	* Perform the import for the given configuration. This passes the heavy
	* lifting off to zpool_import_props(), and then mounts the datasets contained
	* within the pool.
	*/
	static int
	do_import(nvlist_t config, const char newname, const char *mntopts,
	nvlist_t *props, int flags)
	{
	int ret = 0;
	zpool_handle_t *zhp;
	char *name;
	uint64_t version;

	name = fnvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME);
	version = fnvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION);

	if (!SPA_VERSION_IS_SUPPORTED(version)) {
	(void) fprintf(stderr, gettext("cannot import '%s': pool "
	"is formatted using an unsupported ZFS version\n"), name);
	return (1);
	} else if (zfs_force_import_required(config) &&
	!(flags & ZFS_IMPORT_ANY_HOST)) {
	mmp_state_t mmp_state = MMP_STATE_INACTIVE;
	nvlist_t *nvinfo;

	nvinfo = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO);
	if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_STATE))
	mmp_state = fnvlist_lookup_uint64(nvinfo,
	ZPOOL_CONFIG_MMP_STATE);

	if (mmp_state == MMP_STATE_ACTIVE) {
	char *hostname = "<unknown>";
	uint64_t hostid = 0;

	if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_HOSTNAME))
	hostname = fnvlist_lookup_string(nvinfo,
	ZPOOL_CONFIG_MMP_HOSTNAME);

	if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_HOSTID))
	hostid = fnvlist_lookup_uint64(nvinfo,
	ZPOOL_CONFIG_MMP_HOSTID);

	(void) fprintf(stderr, gettext("cannot import '%s': "
	"pool is imported on %s (hostid: "
	"0x%lx)\nExport the pool on the other system, "
	"then run 'zpool import'.\n"),
	name, hostname, (unsigned long) hostid);
	} else if (mmp_state == MMP_STATE_NO_HOSTID) {
	(void) fprintf(stderr, gettext("Cannot import '%s': "
	"pool has the multihost property on and the\n"
	"system's hostid is not set. Set a unique hostid "
	"with the zgenhostid(8) command.\n"), name);
	} else {
	char *hostname = "<unknown>";
	uint64_t timestamp = 0;
	uint64_t hostid = 0;

	if (nvlist_exists(config, ZPOOL_CONFIG_HOSTNAME))
	hostname = fnvlist_lookup_string(config,
	ZPOOL_CONFIG_HOSTNAME);

	if (nvlist_exists(config, ZPOOL_CONFIG_TIMESTAMP))
	timestamp = fnvlist_lookup_uint64(config,
	ZPOOL_CONFIG_TIMESTAMP);

	if (nvlist_exists(config, ZPOOL_CONFIG_HOSTID))
	hostid = fnvlist_lookup_uint64(config,
	ZPOOL_CONFIG_HOSTID);

	(void) fprintf(stderr, gettext("cannot import '%s': "
	"pool was previously in use from another system.\n"
	"Last accessed by %s (hostid=%lx) at %s"
	"The pool can be imported, use 'zpool import -f' "
	"to import the pool.\n"), name, hostname,
	(unsigned long)hostid, ctime((time_t *)&timestamp));
	}

	return (1);
	}

	if (zpool_import_props(g_zfs, config, newname, props, flags) != 0)
	return (1);

	if (newname != NULL)
	name = (char *)newname;

	if ((zhp = zpool_open_canfail(g_zfs, name)) == NULL)
	return (1);

	/*
	* Loading keys is best effort. We don't want to return immediately
	* if it fails but we do want to give the error to the caller.
	*/
	if (flags & ZFS_IMPORT_LOAD_KEYS) {
	ret = zfs_crypto_attempt_load_keys(g_zfs, name);
	if (ret != 0)
	ret = 1;
	}

	if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
	!(flags & ZFS_IMPORT_ONLY) &&
	zpool_enable_datasets(zhp, mntopts, 0) != 0) {
	zpool_close(zhp);
	return (1);
	}

	zpool_close(zhp);
	return (ret);
	}

	static int
	import_pools(nvlist_t pools, nvlist_t props, char *mntopts, int flags,
	char orig_name, char new_name,
	boolean_t do_destroyed, boolean_t pool_specified, boolean_t do_all,
	importargs_t *import)
	{
	nvlist_t *config = NULL;
	nvlist_t *found_config = NULL;
	uint64_t pool_state;

	/*
	* At this point we have a list of import candidate configs. Even if
	* we were searching by pool name or guid, we still need to
	* post-process the list to deal with pool state and possible
	* duplicate names.
	*/
	int err = 0;
	nvpair_t *elem = NULL;
	boolean_t first = B_TRUE;
	while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {

	verify(nvpair_value_nvlist(elem, &config) == 0);

	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
	&pool_state) == 0);
	if (!do_destroyed && pool_state == POOL_STATE_DESTROYED)
	continue;
	if (do_destroyed && pool_state != POOL_STATE_DESTROYED)
	continue;

	verify(nvlist_add_nvlist(config, ZPOOL_LOAD_POLICY,
	import->policy) == 0);

	if (!pool_specified) {
	if (first)
	first = B_FALSE;
	else if (!do_all)
	(void) printf("\n");

	if (do_all) {
	err \|= do_import(config, NULL, mntopts,
	props, flags);
	} else {
	/*
	* If we're importing from cachefile, then
	* we don't want to report errors until we
	* are in the scan phase of the import. If
	* we get an error, then we return that error
	* to invoke the scan phase.
	*/
	if (import->cachefile && !import->scan)
	err = show_import(config, B_FALSE);
	else
	(void) show_import(config, B_TRUE);
	}
	} else if (import->poolname != NULL) {
	char *name;

	/*
	* We are searching for a pool based on name.
	*/
	verify(nvlist_lookup_string(config,
	ZPOOL_CONFIG_POOL_NAME, &name) == 0);

	if (strcmp(name, import->poolname) == 0) {
	if (found_config != NULL) {
	(void) fprintf(stderr, gettext(
	"cannot import '%s': more than "
	"one matching pool\n"),
	import->poolname);
	(void) fprintf(stderr, gettext(
	"import by numeric ID instead\n"));
	err = B_TRUE;
	}
	found_config = config;
	}
	} else {
	uint64_t guid;

	/*
	* Search for a pool by guid.
	*/
	verify(nvlist_lookup_uint64(config,
	ZPOOL_CONFIG_POOL_GUID, &guid) == 0);

	if (guid == import->guid)
	found_config = config;
	}
	}

	/*
	* If we were searching for a specific pool, verify that we found a
	* pool, and then do the import.
	*/
	if (pool_specified && err == 0) {
	if (found_config == NULL) {
	(void) fprintf(stderr, gettext("cannot import '%s': "
	"no such pool available\n"), orig_name);
	err = B_TRUE;
	} else {
	err \|= do_import(found_config, new_name,
	mntopts, props, flags);
	}
	}

	/*
	* If we were just looking for pools, report an error if none were
	* found.
	*/
	if (!pool_specified && first)
	(void) fprintf(stderr,
	gettext("no pools available to import\n"));
	return (err);
	}

	typedef struct target_exists_args {
	const char *poolname;
	uint64_t poolguid;
	} target_exists_args_t;

	static int
	name_or_guid_exists(zpool_handle_t zhp, void data)
	{
	target_exists_args_t *args = data;
	nvlist_t *config = zpool_get_config(zhp, NULL);
	int found = 0;

	if (config == NULL)
	return (0);

	if (args->poolname != NULL) {
	char *pool_name;

	verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
	&pool_name) == 0);
	if (strcmp(pool_name, args->poolname) == 0)
	found = 1;
	} else {
	uint64_t pool_guid;

	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
	&pool_guid) == 0);
	if (pool_guid == args->poolguid)
	found = 1;
	}
	zpool_close(zhp);

	return (found);
	}
	/*
	* zpool checkpoint <pool>
	* checkpoint --discard <pool>
	*
	* -d Discard the checkpoint from a checkpointed
	* --discard pool.
	*
	* -w Wait for discarding a checkpoint to complete.
	* --wait
	*
	* Checkpoints the specified pool, by taking a "snapshot" of its
	* current state. A pool can only have one checkpoint at a time.
	*/
	int
	zpool_do_checkpoint(int argc, char **argv)
	{
	boolean_t discard, wait;
	char *pool;
	zpool_handle_t *zhp;
	int c, err;

	struct option long_options[] = {
	{"discard", no_argument, NULL, 'd'},
	{"wait", no_argument, NULL, 'w'},
	{0, 0, 0, 0}
	};

	discard = B_FALSE;
	wait = B_FALSE;
	while ((c = getopt_long(argc, argv, ":dw", long_options, NULL)) != -1) {
	switch (c) {
	case 'd':
	discard = B_TRUE;
	break;
	case 'w':
	wait = B_TRUE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	if (wait && !discard) {
	(void) fprintf(stderr, gettext("--wait only valid when "
	"--discard also specified\n"));
	usage(B_FALSE);
	}

	argc -= optind;
	argv += optind;

	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing pool argument\n"));
	usage(B_FALSE);
	}

	if (argc > 1) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	pool = argv[0];

	if ((zhp = zpool_open(g_zfs, pool)) == NULL) {
	/* As a special case, check for use of '/' in the name */
	if (strchr(pool, '/') != NULL)
	(void) fprintf(stderr, gettext("'zpool checkpoint' "
	"doesn't work on datasets. To save the state "
	"of a dataset from a specific point in time "
	"please use 'zfs snapshot'\n"));
	return (1);
	}

	if (discard) {
	err = (zpool_discard_checkpoint(zhp) != 0);
	if (err == 0 && wait)
	err = zpool_wait(zhp, ZPOOL_WAIT_CKPT_DISCARD);
	} else {
	err = (zpool_checkpoint(zhp) != 0);
	}

	zpool_close(zhp);

	return (err);
	}

	#define CHECKPOINT_OPT 1024

	/*
	* zpool import [-d dir] [-D]
	* import [-o mntopts] [-o prop=value] ... [-R root] [-D] [-l]
	* [-d dir \| -c cachefile \| -s] [-f] -a
	* import [-o mntopts] [-o prop=value] ... [-R root] [-D] [-l]
	* [-d dir \| -c cachefile \| -s] [-f] [-n] [-F] <pool \| id>
	* [newpool]
	*
	* -c Read pool information from a cachefile instead of searching
	* devices. If importing from a cachefile config fails, then
	* fallback to searching for devices only in the directories that
	* exist in the cachefile.
	*
	* -d Scan in a specific directory, other than /dev/. More than
	* one directory can be specified using multiple '-d' options.
	*
	* -D Scan for previously destroyed pools or import all or only
	* specified destroyed pools.
	*
	* -R Temporarily import the pool, with all mountpoints relative to
	* the given root. The pool will remain exported when the machine
	* is rebooted.
	*
	* -V Import even in the presence of faulted vdevs. This is an
	* intentionally undocumented option for testing purposes, and
	* treats the pool configuration as complete, leaving any bad
	* vdevs in the FAULTED state. In other words, it does verbatim
	* import.
	*
	* -f Force import, even if it appears that the pool is active.
	*
	* -F Attempt rewind if necessary.
	*
	* -n See if rewind would work, but don't actually rewind.
	*
	* -N Import the pool but don't mount datasets.
	*
	* -T Specify a starting txg to use for import. This option is
	* intentionally undocumented option for testing purposes.
	*
	* -a Import all pools found.
	*
	* -l Load encryption keys while importing.
	*
	* -o Set property=value and/or temporary mount options (without '=').
	*
	* -s Scan using the default search path, the libblkid cache will
	* not be consulted.
	*
	* --rewind-to-checkpoint
	* Import the pool and revert back to the checkpoint.
	*
	* The import command scans for pools to import, and import pools based on pool
	* name and GUID. The pool can also be renamed as part of the import process.
	*/
	int
	zpool_do_import(int argc, char **argv)
	{
	char **searchdirs = NULL;
	char env, envdup = NULL;
	int nsearch = 0;
	int c;
	int err = 0;
	nvlist_t *pools = NULL;
	boolean_t do_all = B_FALSE;
	boolean_t do_destroyed = B_FALSE;
	char *mntopts = NULL;
	uint64_t searchguid = 0;
	char *searchname = NULL;
	char *propval;
	nvlist_t *policy = NULL;
	nvlist_t *props = NULL;
	int flags = ZFS_IMPORT_NORMAL;
	uint32_t rewind_policy = ZPOOL_NO_REWIND;
	boolean_t dryrun = B_FALSE;
	boolean_t do_rewind = B_FALSE;
	boolean_t xtreme_rewind = B_FALSE;
	boolean_t do_scan = B_FALSE;
	boolean_t pool_exists = B_FALSE;
	boolean_t pool_specified = B_FALSE;
	uint64_t txg = -1ULL;
	char *cachefile = NULL;
	importargs_t idata = { 0 };
	char *endptr;

	struct option long_options[] = {
	{"rewind-to-checkpoint", no_argument, NULL, CHECKPOINT_OPT},
	{0, 0, 0, 0}
	};

	/* check options */
	while ((c = getopt_long(argc, argv, ":aCc:d:DEfFlmnNo:R:stT:VX",
	long_options, NULL)) != -1) {
	switch (c) {
	case 'a':
	do_all = B_TRUE;
	break;
	case 'c':
	cachefile = optarg;
	break;
	case 'd':
	searchdirs = safe_realloc(searchdirs,
	(nsearch + 1) * sizeof (char *));
	searchdirs[nsearch++] = optarg;
	break;
	case 'D':
	do_destroyed = B_TRUE;
	break;
	case 'f':
	flags \|= ZFS_IMPORT_ANY_HOST;
	break;
	case 'F':
	do_rewind = B_TRUE;
	break;
	case 'l':
	flags \|= ZFS_IMPORT_LOAD_KEYS;
	break;
	case 'm':
	flags \|= ZFS_IMPORT_MISSING_LOG;
	break;
	case 'n':
	dryrun = B_TRUE;
	break;
	case 'N':
	flags \|= ZFS_IMPORT_ONLY;
	break;
	case 'o':
	if ((propval = strchr(optarg, '=')) != NULL) {
	*propval = '\0';
	propval++;
	if (add_prop_list(optarg, propval,
	&props, B_TRUE))
	goto error;
	} else {
	mntopts = optarg;
	}
	break;
	case 'R':
	if (add_prop_list(zpool_prop_to_name(
	ZPOOL_PROP_ALTROOT), optarg, &props, B_TRUE))
	goto error;
	if (add_prop_list_default(zpool_prop_to_name(
	ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
	goto error;
	break;
	case 's':
	do_scan = B_TRUE;
	break;
	case 't':
	flags \|= ZFS_IMPORT_TEMP_NAME;
	if (add_prop_list_default(zpool_prop_to_name(
	ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
	goto error;
	break;

	case 'T':
	errno = 0;
	txg = strtoull(optarg, &endptr, 0);
	if (errno != 0 \|\| *endptr != '\0') {
	(void) fprintf(stderr,
	gettext("invalid txg value\n"));
	usage(B_FALSE);
	}
	rewind_policy = ZPOOL_DO_REWIND \| ZPOOL_EXTREME_REWIND;
	break;
	case 'V':
	flags \|= ZFS_IMPORT_VERBATIM;
	break;
	case 'X':
	xtreme_rewind = B_TRUE;
	break;
	case CHECKPOINT_OPT:
	flags \|= ZFS_IMPORT_CHECKPOINT;
	break;
	case ':':
	(void) fprintf(stderr, gettext("missing argument for "
	"'%c' option\n"), optopt);
	usage(B_FALSE);
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	if (cachefile && nsearch != 0) {
	(void) fprintf(stderr, gettext("-c is incompatible with -d\n"));
	usage(B_FALSE);
	}

	if (cachefile && do_scan) {
	(void) fprintf(stderr, gettext("-c is incompatible with -s\n"));
	usage(B_FALSE);
	}

	if ((flags & ZFS_IMPORT_LOAD_KEYS) && (flags & ZFS_IMPORT_ONLY)) {
	(void) fprintf(stderr, gettext("-l is incompatible with -N\n"));
	usage(B_FALSE);
	}

	if ((flags & ZFS_IMPORT_LOAD_KEYS) && !do_all && argc == 0) {
	(void) fprintf(stderr, gettext("-l is only meaningful during "
	"an import\n"));
	usage(B_FALSE);
	}

	if ((dryrun \|\| xtreme_rewind) && !do_rewind) {
	(void) fprintf(stderr,
	gettext("-n or -X only meaningful with -F\n"));
	usage(B_FALSE);
	}
	if (dryrun)
	rewind_policy = ZPOOL_TRY_REWIND;
	else if (do_rewind)
	rewind_policy = ZPOOL_DO_REWIND;
	if (xtreme_rewind)
	rewind_policy \|= ZPOOL_EXTREME_REWIND;

	/* In the future, we can capture further policy and include it here */
	if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 \|\|
	nvlist_add_uint64(policy, ZPOOL_LOAD_REQUEST_TXG, txg) != 0 \|\|
	nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY,
	rewind_policy) != 0)
	goto error;

	/* check argument count */
	if (do_all) {
	if (argc != 0) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}
	} else {
	if (argc > 2) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}
	}

	/*
	* Check for the effective uid. We do this explicitly here because
	* otherwise any attempt to discover pools will silently fail.
	*/
	if (argc == 0 && geteuid() != 0) {
	(void) fprintf(stderr, gettext("cannot "
	"discover pools: permission denied\n"));
	if (searchdirs != NULL)
	free(searchdirs);

	nvlist_free(props);
	nvlist_free(policy);
	return (1);
	}

	/*
	* Depending on the arguments given, we do one of the following:
	*
	* <none> Iterate through all pools and display information about
	* each one.
	*
	* -a Iterate through all pools and try to import each one.
	*
	* <id> Find the pool that corresponds to the given GUID/pool
	* name and import that one.
	*
	* -D Above options applies only to destroyed pools.
	*/
	if (argc != 0) {
	char *endptr;

	errno = 0;
	searchguid = strtoull(argv[0], &endptr, 10);
	if (errno != 0 \|\| *endptr != '\0') {
	searchname = argv[0];
	searchguid = 0;
	}
	pool_specified = B_TRUE;

	/*
	* User specified a name or guid. Ensure it's unique.
	*/
	target_exists_args_t search = {searchname, searchguid};
	pool_exists = zpool_iter(g_zfs, name_or_guid_exists, &search);
	}

	/*
	* Check the environment for the preferred search path.
	*/
	if ((searchdirs == NULL) && (env = getenv("ZPOOL_IMPORT_PATH"))) {
	char dir, tmp = NULL;

	envdup = strdup(env);

	for (dir = strtok_r(envdup, ":", &tmp);
	dir != NULL;
	dir = strtok_r(NULL, ":", &tmp)) {
	searchdirs = safe_realloc(searchdirs,
	(nsearch + 1) * sizeof (char *));
	searchdirs[nsearch++] = dir;
	}
	}

	idata.path = searchdirs;
	idata.paths = nsearch;
	idata.poolname = searchname;
	idata.guid = searchguid;
	idata.cachefile = cachefile;
	idata.scan = do_scan;
	idata.policy = policy;

	pools = zpool_search_import(g_zfs, &idata, &libzfs_config_ops);

	if (pools != NULL && pool_exists &&
	(argc == 1 \|\| strcmp(argv[0], argv[1]) == 0)) {
	(void) fprintf(stderr, gettext("cannot import '%s': "
	"a pool with that name already exists\n"),
	argv[0]);
	(void) fprintf(stderr, gettext("use the form '%s "
	"<pool \| id> <newpool>' to give it a new name\n"),
	"zpool import");
	err = 1;
	} else if (pools == NULL && pool_exists) {
	(void) fprintf(stderr, gettext("cannot import '%s': "
	"a pool with that name is already created/imported,\n"),
	argv[0]);
	(void) fprintf(stderr, gettext("and no additional pools "
	"with that name were found\n"));
	err = 1;
	} else if (pools == NULL) {
	if (argc != 0) {
	(void) fprintf(stderr, gettext("cannot import '%s': "
	"no such pool available\n"), argv[0]);
	}
	err = 1;
	}

	if (err == 1) {
	free(searchdirs);
	free(envdup);
	nvlist_free(policy);
	nvlist_free(pools);
	nvlist_free(props);
	return (1);
	}

	err = import_pools(pools, props, mntopts, flags, argv[0],
	argc == 1 ? NULL : argv[1], do_destroyed, pool_specified,
	do_all, &idata);

	/*
	* If we're using the cachefile and we failed to import, then
	* fallback to scanning the directory for pools that match
	* those in the cachefile.
	*/
	if (err != 0 && cachefile != NULL) {
	(void) printf(gettext("cachefile import failed, retrying\n"));

	/*
	* We use the scan flag to gather the directories that exist
	* in the cachefile. If we need to fallback to searching for
	* the pool config, we will only search devices in these
	* directories.
	*/
	idata.scan = B_TRUE;
	nvlist_free(pools);
	pools = zpool_search_import(g_zfs, &idata, &libzfs_config_ops);

	err = import_pools(pools, props, mntopts, flags, argv[0],
	argc == 1 ? NULL : argv[1], do_destroyed, pool_specified,
	do_all, &idata);
	}

	error:
	nvlist_free(props);
	nvlist_free(pools);
	nvlist_free(policy);
	free(searchdirs);
	free(envdup);

	return (err ? 1 : 0);
	}

	/*
	* zpool sync [-f] [pool] ...
	*
	* -f (undocumented) force uberblock (and config including zpool cache file)
	* update.
	*
	* Sync the specified pool(s).
	* Without arguments "zpool sync" will sync all pools.
	* This command initiates TXG sync(s) and will return after the TXG(s) commit.
	*
	*/
	static int
	zpool_do_sync(int argc, char **argv)
	{
	int ret;
	boolean_t force = B_FALSE;

	/* check options */
	while ((ret = getopt(argc, argv, "f")) != -1) {
	switch (ret) {
	case 'f':
	force = B_TRUE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* if argc == 0 we will execute zpool_sync_one on all pools */
	ret = for_each_pool(argc, argv, B_FALSE, NULL, B_FALSE, zpool_sync_one,
	&force);

	return (ret);
	}

	typedef struct iostat_cbdata {
	uint64_t cb_flags;
	int cb_name_flags;
	int cb_namewidth;
	int cb_iteration;
	char *cb_vdev_names; / Only show these vdevs */
	unsigned int cb_vdev_names_count;
	boolean_t cb_verbose;
	boolean_t cb_literal;
	boolean_t cb_scripted;
	zpool_list_t *cb_list;
	vdev_cmd_data_list_t *vcdl;
	} iostat_cbdata_t;

	/* iostat labels */
	typedef struct name_and_columns {
	const char name; / Column name */
	unsigned int columns; /* Center name to this number of columns */
	} name_and_columns_t;

	#define IOSTAT_MAX_LABELS 13 /* Max number of labels on one line */

	static const name_and_columns_t iostat_top_labels[][IOSTAT_MAX_LABELS] =
	{
	[IOS_DEFAULT] = {{"capacity", 2}, {"operations", 2}, {"bandwidth", 2},
	{NULL}},
	[IOS_LATENCY] = {{"total_wait", 2}, {"disk_wait", 2}, {"syncq_wait", 2},
	{"asyncq_wait", 2}, {"scrub", 1}, {"trim", 1}, {NULL}},
	[IOS_QUEUES] = {{"syncq_read", 2}, {"syncq_write", 2},
	{"asyncq_read", 2}, {"asyncq_write", 2}, {"scrubq_read", 2},
	{"trimq_write", 2}, {NULL}},
	[IOS_L_HISTO] = {{"total_wait", 2}, {"disk_wait", 2}, {"syncq_wait", 2},
	{"asyncq_wait", 2}, {NULL}},
	[IOS_RQ_HISTO] = {{"sync_read", 2}, {"sync_write", 2},
	{"async_read", 2}, {"async_write", 2}, {"scrub", 2},
	{"trim", 2}, {NULL}},
	};

	/* Shorthand - if "columns" field not set, default to 1 column */
	static const name_and_columns_t iostat_bottom_labels[][IOSTAT_MAX_LABELS] =
	{
	[IOS_DEFAULT] = {{"alloc"}, {"free"}, {"read"}, {"write"}, {"read"},
	{"write"}, {NULL}},
	[IOS_LATENCY] = {{"read"}, {"write"}, {"read"}, {"write"}, {"read"},
	{"write"}, {"read"}, {"write"}, {"wait"}, {"wait"}, {NULL}},
	[IOS_QUEUES] = {{"pend"}, {"activ"}, {"pend"}, {"activ"}, {"pend"},
	{"activ"}, {"pend"}, {"activ"}, {"pend"}, {"activ"},
	{"pend"}, {"activ"}, {NULL}},
	[IOS_L_HISTO] = {{"read"}, {"write"}, {"read"}, {"write"}, {"read"},
	{"write"}, {"read"}, {"write"}, {"scrub"}, {"trim"}, {NULL}},
	[IOS_RQ_HISTO] = {{"ind"}, {"agg"}, {"ind"}, {"agg"}, {"ind"}, {"agg"},
	{"ind"}, {"agg"}, {"ind"}, {"agg"}, {"ind"}, {"agg"}, {NULL}},
	};

	static const char *histo_to_title[] = {
	[IOS_L_HISTO] = "latency",
	[IOS_RQ_HISTO] = "req_size",
	};

	/*
	* Return the number of labels in a null-terminated name_and_columns_t
	* array.
	*
	*/
	static unsigned int
	label_array_len(const name_and_columns_t *labels)
	{
	int i = 0;

	while (labels[i].name)
	i++;

	return (i);
	}

	/*
	* Return the number of strings in a null-terminated string array.
	* For example:
	*
	* const char foo[] = {"bar", "baz", NULL}
	*
	* returns 2
	*/
	static uint64_t
	str_array_len(const char *array[])
	{
	uint64_t i = 0;
	while (array[i])
	i++;

	return (i);
	}


	/*
	* Return a default column width for default/latency/queue columns. This does
	* not include histograms, which have their columns autosized.
	*/
	static unsigned int
	default_column_width(iostat_cbdata_t *cb, enum iostat_type type)
	{
	unsigned long column_width = 5; /* Normal niceprint */
	static unsigned long widths[] = {
	/*
	* Choose some sane default column sizes for printing the
	* raw numbers.
	*/
	[IOS_DEFAULT] = 15, /* 1PB capacity */
	[IOS_LATENCY] = 10, /* 1B ns = 10sec */
	[IOS_QUEUES] = 6, /* 1M queue entries */
	[IOS_L_HISTO] = 10, /* 1B ns = 10sec */
	[IOS_RQ_HISTO] = 6, /* 1M queue entries */
	};

	if (cb->cb_literal)
	column_width = widths[type];

	return (column_width);
	}

	/*
	* Print the column labels, i.e:
	*
	* capacity operations bandwidth
	* alloc free read write read write ...
	*
	* If force_column_width is set, use it for the column width. If not set, use
	* the default column width.
	*/
	static void
	print_iostat_labels(iostat_cbdata_t *cb, unsigned int force_column_width,
	const name_and_columns_t labels[][IOSTAT_MAX_LABELS])
	{
	int i, idx, s;
	int text_start, rw_column_width, spaces_to_end;
	uint64_t flags = cb->cb_flags;
	uint64_t f;
	unsigned int column_width = force_column_width;

	/* For each bit set in flags */
	for (f = flags; f; f &= ~(1ULL << idx)) {
	idx = lowbit64(f) - 1;
	if (!force_column_width)
	column_width = default_column_width(cb, idx);
	/* Print our top labels centered over "read write" label. */
	for (i = 0; i < label_array_len(labels[idx]); i++) {
	const char *name = labels[idx][i].name;
	/*
	* We treat labels[][].columns == 0 as shorthand
	* for one column. It makes writing out the label
	* tables more concise.
	*/
	unsigned int columns = MAX(1, labels[idx][i].columns);
	unsigned int slen = strlen(name);

	rw_column_width = (column_width * columns) +
	(2 * (columns - 1));

	text_start = (int)((rw_column_width) / columns -
	slen / columns);
	if (text_start < 0)
	text_start = 0;

	printf(" "); /* Two spaces between columns */

	/* Space from beginning of column to label */
	for (s = 0; s < text_start; s++)
	printf(" ");

	printf("%s", name);

	/* Print space after label to end of column */
	spaces_to_end = rw_column_width - text_start - slen;
	if (spaces_to_end < 0)
	spaces_to_end = 0;

	for (s = 0; s < spaces_to_end; s++)
	printf(" ");
	}
	}
	}


	/*
	* print_cmd_columns - Print custom column titles from -c
	*
	* If the user specified the "zpool status\|iostat -c" then print their custom
	* column titles in the header. For example, print_cmd_columns() would print
	* the " col1 col2" part of this:
	*
	* $ zpool iostat -vc 'echo col1=val1; echo col2=val2'
	* ...
	* capacity operations bandwidth
	* pool alloc free read write read write col1 col2
	* ---------- ----- ----- ----- ----- ----- ----- ---- ----
	* mypool 269K 1008M 0 0 107 946
	* mirror 269K 1008M 0 0 107 946
	* sdb - - 0 0 102 473 val1 val2
	* sdc - - 0 0 5 473 val1 val2
	* ---------- ----- ----- ----- ----- ----- ----- ---- ----
	*/
	static void
	print_cmd_columns(vdev_cmd_data_list_t *vcdl, int use_dashes)
	{
	int i, j;
	vdev_cmd_data_t *data = &vcdl->data[0];

	if (vcdl->count == 0 \|\| data == NULL)
	return;

	/*
	* Each vdev cmd should have the same column names unless the user did
	* something weird with their cmd. Just take the column names from the
	* first vdev and assume it works for all of them.
	*/
	for (i = 0; i < vcdl->uniq_cols_cnt; i++) {
	printf(" ");
	if (use_dashes) {
	for (j = 0; j < vcdl->uniq_cols_width[i]; j++)
	printf("-");
	} else {
	printf_color(ANSI_BOLD, "%*s", vcdl->uniq_cols_width[i],
	vcdl->uniq_cols[i]);
	}
	}
	}


	/*
	* Utility function to print out a line of dashes like:
	*
	* -------------------------------- ----- ----- ----- ----- -----
	*
	* ...or a dashed named-row line like:
	*
	* logs - - - - -
	*
	* @cb: iostat data
	*
	* @force_column_width If non-zero, use the value as the column width.
	* Otherwise use the default column widths.
	*
	* @name: Print a dashed named-row line starting
	* with @name. Otherwise, print a regular
	* dashed line.
	*/
	static void
	print_iostat_dashes(iostat_cbdata_t *cb, unsigned int force_column_width,
	const char *name)
	{
	int i;
	unsigned int namewidth;
	uint64_t flags = cb->cb_flags;
	uint64_t f;
	int idx;
	const name_and_columns_t *labels;
	const char *title;


	if (cb->cb_flags & IOS_ANYHISTO_M) {
	title = histo_to_title[IOS_HISTO_IDX(cb->cb_flags)];
	} else if (cb->cb_vdev_names_count) {
	title = "vdev";
	} else {
	title = "pool";
	}

	namewidth = MAX(MAX(strlen(title), cb->cb_namewidth),
	name ? strlen(name) : 0);


	if (name) {
	printf("%-*s", namewidth, name);
	} else {
	for (i = 0; i < namewidth; i++)
	(void) printf("-");
	}

	/* For each bit in flags */
	for (f = flags; f; f &= ~(1ULL << idx)) {
	unsigned int column_width;
	idx = lowbit64(f) - 1;
	if (force_column_width)
	column_width = force_column_width;
	else
	column_width = default_column_width(cb, idx);

	labels = iostat_bottom_labels[idx];
	for (i = 0; i < label_array_len(labels); i++) {
	if (name)
	printf(" %*s-", column_width - 1, " ");
	else
	printf(" %.*s", column_width,
	"--------------------");
	}
	}
	}


	static void
	print_iostat_separator_impl(iostat_cbdata_t *cb,
	unsigned int force_column_width)
	{
	print_iostat_dashes(cb, force_column_width, NULL);
	}

	static void
	print_iostat_separator(iostat_cbdata_t *cb)
	{
	print_iostat_separator_impl(cb, 0);
	}

	static void
	print_iostat_header_impl(iostat_cbdata_t *cb, unsigned int force_column_width,
	const char *histo_vdev_name)
	{
	unsigned int namewidth;
	const char *title;

	if (cb->cb_flags & IOS_ANYHISTO_M) {
	title = histo_to_title[IOS_HISTO_IDX(cb->cb_flags)];
	} else if (cb->cb_vdev_names_count) {
	title = "vdev";
	} else {
	title = "pool";
	}

	namewidth = MAX(MAX(strlen(title), cb->cb_namewidth),
	histo_vdev_name ? strlen(histo_vdev_name) : 0);

	if (histo_vdev_name)
	printf("%-*s", namewidth, histo_vdev_name);
	else
	printf("%*s", namewidth, "");


	print_iostat_labels(cb, force_column_width, iostat_top_labels);
	printf("\n");

	printf("%-*s", namewidth, title);

	print_iostat_labels(cb, force_column_width, iostat_bottom_labels);
	if (cb->vcdl != NULL)
	print_cmd_columns(cb->vcdl, 0);

	printf("\n");

	print_iostat_separator_impl(cb, force_column_width);

	if (cb->vcdl != NULL)
	print_cmd_columns(cb->vcdl, 1);

	printf("\n");
	}

	static void
	print_iostat_header(iostat_cbdata_t *cb)
	{
	print_iostat_header_impl(cb, 0, NULL);
	}


	/*
	* Display a single statistic.
	*/
	static void
	print_one_stat(uint64_t value, enum zfs_nicenum_format format,
	unsigned int column_size, boolean_t scripted)
	{
	char buf[64];

	zfs_nicenum_format(value, buf, sizeof (buf), format);

	if (scripted)
	printf("\t%s", buf);
	else
	printf(" %*s", column_size, buf);
	}

	/*
	* Calculate the default vdev stats
	*
	* Subtract oldvs from newvs, apply a scaling factor, and save the resulting
	* stats into calcvs.
	*/
	static void
	calc_default_iostats(vdev_stat_t oldvs, vdev_stat_t newvs,
	vdev_stat_t *calcvs)
	{
	int i;

	memcpy(calcvs, newvs, sizeof (*calcvs));
	for (i = 0; i < ARRAY_SIZE(calcvs->vs_ops); i++)
	calcvs->vs_ops[i] = (newvs->vs_ops[i] - oldvs->vs_ops[i]);

	for (i = 0; i < ARRAY_SIZE(calcvs->vs_bytes); i++)
	calcvs->vs_bytes[i] = (newvs->vs_bytes[i] - oldvs->vs_bytes[i]);
	}

	/*
	* Internal representation of the extended iostats data.
	*
	* The extended iostat stats are exported in nvlists as either uint64_t arrays
	* or single uint64_t's. We make both look like arrays to make them easier
	* to process. In order to make single uint64_t's look like arrays, we set
	* __data to the stat data, and then set *data = &__data with count = 1. Then,
	* we can just use *data and count.
	*/
	struct stat_array {
	uint64_t *data;
	uint_t count; /* Number of entries in data[] */
	uint64_t __data; /* Only used when data is a single uint64_t */
	};

	static uint64_t
	stat_histo_max(struct stat_array *nva, unsigned int len)
	{
	uint64_t max = 0;
	int i;
	for (i = 0; i < len; i++)
	max = MAX(max, array64_max(nva[i].data, nva[i].count));

	return (max);
	}

	/*
	* Helper function to lookup a uint64_t array or uint64_t value and store its
	* data as a stat_array. If the nvpair is a single uint64_t value, then we make
	* it look like a one element array to make it easier to process.
	*/
	static int
	nvpair64_to_stat_array(nvlist_t nvl, const char name,
	struct stat_array *nva)
	{
	nvpair_t *tmp;
	int ret;

	verify(nvlist_lookup_nvpair(nvl, name, &tmp) == 0);
	switch (nvpair_type(tmp)) {
	case DATA_TYPE_UINT64_ARRAY:
	ret = nvpair_value_uint64_array(tmp, &nva->data, &nva->count);
	break;
	case DATA_TYPE_UINT64:
	ret = nvpair_value_uint64(tmp, &nva->__data);
	nva->data = &nva->__data;
	nva->count = 1;
	break;
	default:
	/* Not a uint64_t */
	ret = EINVAL;
	break;
	}

	return (ret);
	}

	/*
	* Given a list of nvlist names, look up the extended stats in newnv and oldnv,
	* subtract them, and return the results in a newly allocated stat_array.
	* You must free the returned array after you are done with it with
	* free_calc_stats().
	*
	* Additionally, you can set "oldnv" to NULL if you simply want the newnv
	* values.
	*/
	static struct stat_array *
	calc_and_alloc_stats_ex(const char *names, unsigned int len, nvlist_t oldnv,
	nvlist_t *newnv)
	{
	nvlist_t oldnvx = NULL, newnvx;
	struct stat_array oldnva, newnva, *calcnva;
	int i, j;
	unsigned int alloc_size = (sizeof (struct stat_array)) * len;

	/* Extract our extended stats nvlist from the main list */
	verify(nvlist_lookup_nvlist(newnv, ZPOOL_CONFIG_VDEV_STATS_EX,
	&newnvx) == 0);
	if (oldnv) {
	verify(nvlist_lookup_nvlist(oldnv, ZPOOL_CONFIG_VDEV_STATS_EX,
	&oldnvx) == 0);
	}

	newnva = safe_malloc(alloc_size);
	oldnva = safe_malloc(alloc_size);
	calcnva = safe_malloc(alloc_size);

	for (j = 0; j < len; j++) {
	verify(nvpair64_to_stat_array(newnvx, names[j],
	&newnva[j]) == 0);
	calcnva[j].count = newnva[j].count;
	alloc_size = calcnva[j].count * sizeof (calcnva[j].data[0]);
	calcnva[j].data = safe_malloc(alloc_size);
	memcpy(calcnva[j].data, newnva[j].data, alloc_size);

	if (oldnvx) {
	verify(nvpair64_to_stat_array(oldnvx, names[j],
	&oldnva[j]) == 0);
	for (i = 0; i < oldnva[j].count; i++)
	calcnva[j].data[i] -= oldnva[j].data[i];
	}
	}
	free(newnva);
	free(oldnva);
	return (calcnva);
	}

	static void
	free_calc_stats(struct stat_array *nva, unsigned int len)
	{
	int i;
	for (i = 0; i < len; i++)
	free(nva[i].data);

	free(nva);
	}

	static void
	print_iostat_histo(struct stat_array *nva, unsigned int len,
	iostat_cbdata_t *cb, unsigned int column_width, unsigned int namewidth,
	double scale)
	{
	int i, j;
	char buf[6];
	uint64_t val;
	enum zfs_nicenum_format format;
	unsigned int buckets;
	unsigned int start_bucket;

	if (cb->cb_literal)
	format = ZFS_NICENUM_RAW;
	else
	format = ZFS_NICENUM_1024;

	/* All these histos are the same size, so just use nva[0].count */
	buckets = nva[0].count;

	if (cb->cb_flags & IOS_RQ_HISTO_M) {
	/* Start at 512 - req size should never be lower than this */
	start_bucket = 9;
	} else {
	start_bucket = 0;
	}

	for (j = start_bucket; j < buckets; j++) {
	/* Print histogram bucket label */
	if (cb->cb_flags & IOS_L_HISTO_M) {
	/* Ending range of this bucket */
	val = (1UL << (j + 1)) - 1;
	zfs_nicetime(val, buf, sizeof (buf));
	} else {
	/* Request size (starting range of bucket) */
	val = (1UL << j);
	zfs_nicenum(val, buf, sizeof (buf));
	}

	if (cb->cb_scripted)
	printf("%llu", (u_longlong_t)val);
	else
	printf("%-*s", namewidth, buf);

	/* Print the values on the line */
	for (i = 0; i < len; i++) {
	print_one_stat(nva[i].data[j] * scale, format,
	column_width, cb->cb_scripted);
	}
	printf("\n");
	}
	}

	static void
	print_solid_separator(unsigned int length)
	{
	while (length--)
	printf("-");
	printf("\n");
	}

	static void
	print_iostat_histos(iostat_cbdata_t cb, nvlist_t oldnv,
	nvlist_t newnv, double scale, const char name)
	{
	unsigned int column_width;
	unsigned int namewidth;
	unsigned int entire_width;
	enum iostat_type type;
	struct stat_array *nva;
	const char **names;
	unsigned int names_len;

	/* What type of histo are we? */
	type = IOS_HISTO_IDX(cb->cb_flags);

	/* Get NULL-terminated array of nvlist names for our histo */
	names = vsx_type_to_nvlist[type];
	names_len = str_array_len(names); /* num of names */

	nva = calc_and_alloc_stats_ex(names, names_len, oldnv, newnv);

	if (cb->cb_literal) {
	column_width = MAX(5,
	(unsigned int) log10(stat_histo_max(nva, names_len)) + 1);
	} else {
	column_width = 5;
	}

	namewidth = MAX(cb->cb_namewidth,
	strlen(histo_to_title[IOS_HISTO_IDX(cb->cb_flags)]));

	/*
	* Calculate the entire line width of what we're printing. The
	* +2 is for the two spaces between columns:
	*/
	/* read write */
	/* ----- ----- */
	/* \|___\| <---------- column_width */
	/* */
	/* \|__________\| <--- entire_width */
	/* */
	entire_width = namewidth + (column_width + 2) *
	label_array_len(iostat_bottom_labels[type]);

	if (cb->cb_scripted)
	printf("%s\n", name);
	else
	print_iostat_header_impl(cb, column_width, name);

	print_iostat_histo(nva, names_len, cb, column_width,
	namewidth, scale);

	free_calc_stats(nva, names_len);
	if (!cb->cb_scripted)
	print_solid_separator(entire_width);
	}

	/*
	* Calculate the average latency of a power-of-two latency histogram
	*/
	static uint64_t
	single_histo_average(uint64_t *histo, unsigned int buckets)
	{
	int i;
	uint64_t count = 0, total = 0;

	for (i = 0; i < buckets; i++) {
	/*
	* Our buckets are power-of-two latency ranges. Use the
	* midpoint latency of each bucket to calculate the average.
	* For example:
	*
	* Bucket Midpoint
	* 8ns-15ns: 12ns
	* 16ns-31ns: 24ns
	* ...
	*/
	if (histo[i] != 0) {
	total += histo[i] * (((1UL << i) + ((1UL << i)/2)));
	count += histo[i];
	}
	}

	/* Prevent divide by zero */
	return (count == 0 ? 0 : total / count);
	}

	static void
	print_iostat_queues(iostat_cbdata_t cb, nvlist_t oldnv,
	nvlist_t *newnv)
	{
	int i;
	uint64_t val;
	const char *names[] = {
	ZPOOL_CONFIG_VDEV_SYNC_R_PEND_QUEUE,
	ZPOOL_CONFIG_VDEV_SYNC_R_ACTIVE_QUEUE,
	ZPOOL_CONFIG_VDEV_SYNC_W_PEND_QUEUE,
	ZPOOL_CONFIG_VDEV_SYNC_W_ACTIVE_QUEUE,
	ZPOOL_CONFIG_VDEV_ASYNC_R_PEND_QUEUE,
	ZPOOL_CONFIG_VDEV_ASYNC_R_ACTIVE_QUEUE,
	ZPOOL_CONFIG_VDEV_ASYNC_W_PEND_QUEUE,
	ZPOOL_CONFIG_VDEV_ASYNC_W_ACTIVE_QUEUE,
	ZPOOL_CONFIG_VDEV_SCRUB_PEND_QUEUE,
	ZPOOL_CONFIG_VDEV_SCRUB_ACTIVE_QUEUE,
	ZPOOL_CONFIG_VDEV_TRIM_PEND_QUEUE,
	ZPOOL_CONFIG_VDEV_TRIM_ACTIVE_QUEUE,
	};

	struct stat_array *nva;

	unsigned int column_width = default_column_width(cb, IOS_QUEUES);
	enum zfs_nicenum_format format;

	nva = calc_and_alloc_stats_ex(names, ARRAY_SIZE(names), NULL, newnv);

	if (cb->cb_literal)
	format = ZFS_NICENUM_RAW;
	else
	format = ZFS_NICENUM_1024;

	for (i = 0; i < ARRAY_SIZE(names); i++) {
	val = nva[i].data[0];
	print_one_stat(val, format, column_width, cb->cb_scripted);
	}

	free_calc_stats(nva, ARRAY_SIZE(names));
	}

	static void
	print_iostat_latency(iostat_cbdata_t cb, nvlist_t oldnv,
	nvlist_t *newnv)
	{
	int i;
	uint64_t val;
	const char *names[] = {
	ZPOOL_CONFIG_VDEV_TOT_R_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_TOT_W_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_DISK_R_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_DISK_W_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_SYNC_R_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_SYNC_W_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_ASYNC_R_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_ASYNC_W_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_SCRUB_LAT_HISTO,
	ZPOOL_CONFIG_VDEV_TRIM_LAT_HISTO,
	};
	struct stat_array *nva;

	unsigned int column_width = default_column_width(cb, IOS_LATENCY);
	enum zfs_nicenum_format format;

	nva = calc_and_alloc_stats_ex(names, ARRAY_SIZE(names), oldnv, newnv);

	if (cb->cb_literal)
	format = ZFS_NICENUM_RAWTIME;
	else
	format = ZFS_NICENUM_TIME;

	/* Print our avg latencies on the line */
	for (i = 0; i < ARRAY_SIZE(names); i++) {
	/* Compute average latency for a latency histo */
	val = single_histo_average(nva[i].data, nva[i].count);
	print_one_stat(val, format, column_width, cb->cb_scripted);
	}
	free_calc_stats(nva, ARRAY_SIZE(names));
	}

	/*
	* Print default statistics (capacity/operations/bandwidth)
	*/
	static void
	print_iostat_default(vdev_stat_t vs, iostat_cbdata_t cb, double scale)
	{
	unsigned int column_width = default_column_width(cb, IOS_DEFAULT);
	enum zfs_nicenum_format format;
	char na; /* char to print for "not applicable" values */

	if (cb->cb_literal) {
	format = ZFS_NICENUM_RAW;
	na = '0';
	} else {
	format = ZFS_NICENUM_1024;
	na = '-';
	}

	/* only toplevel vdevs have capacity stats */
	if (vs->vs_space == 0) {
	if (cb->cb_scripted)
	printf("\t%c\t%c", na, na);
	else
	printf(" %c %c", column_width, na, column_width,
	na);
	} else {
	print_one_stat(vs->vs_alloc, format, column_width,
	cb->cb_scripted);
	print_one_stat(vs->vs_space - vs->vs_alloc, format,
	column_width, cb->cb_scripted);
	}

	print_one_stat((uint64_t)(vs->vs_ops[ZIO_TYPE_READ] * scale),
	format, column_width, cb->cb_scripted);
	print_one_stat((uint64_t)(vs->vs_ops[ZIO_TYPE_WRITE] * scale),
	format, column_width, cb->cb_scripted);
	print_one_stat((uint64_t)(vs->vs_bytes[ZIO_TYPE_READ] * scale),
	format, column_width, cb->cb_scripted);
	print_one_stat((uint64_t)(vs->vs_bytes[ZIO_TYPE_WRITE] * scale),
	format, column_width, cb->cb_scripted);
	}

	static const char *class_name[] = {
	VDEV_ALLOC_BIAS_DEDUP,
	VDEV_ALLOC_BIAS_SPECIAL,
	VDEV_ALLOC_CLASS_LOGS
	};

	/*
	* Print out all the statistics for the given vdev. This can either be the
	* toplevel configuration, or called recursively. If 'name' is NULL, then this
	* is a verbose output, and we don't want to display the toplevel pool stats.
	*
	* Returns the number of stat lines printed.
	*/
	static unsigned int
	print_vdev_stats(zpool_handle_t zhp, const char name, nvlist_t *oldnv,
	nvlist_t newnv, iostat_cbdata_t cb, int depth)
	{
	nvlist_t oldchild, newchild;
	uint_t c, children, oldchildren;
	vdev_stat_t oldvs, newvs, *calcvs;
	vdev_stat_t zerovs = { 0 };
	char *vname;
	int i;
	int ret = 0;
	uint64_t tdelta;
	double scale;

	if (strcmp(name, VDEV_TYPE_INDIRECT) == 0)
	return (ret);

	calcvs = safe_malloc(sizeof (*calcvs));

	if (oldnv != NULL) {
	verify(nvlist_lookup_uint64_array(oldnv,
	ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&oldvs, &c) == 0);
	} else {
	oldvs = &zerovs;
	}

	/* Do we only want to see a specific vdev? */
	for (i = 0; i < cb->cb_vdev_names_count; i++) {
	/* Yes we do. Is this the vdev? */
	if (strcmp(name, cb->cb_vdev_names[i]) == 0) {
	/*
	* This is our vdev. Since it is the only vdev we
	* will be displaying, make depth = 0 so that it
	* doesn't get indented.
	*/
	depth = 0;
	break;
	}
	}

	if (cb->cb_vdev_names_count && (i == cb->cb_vdev_names_count)) {
	/* Couldn't match the name */
	goto children;
	}


	verify(nvlist_lookup_uint64_array(newnv, ZPOOL_CONFIG_VDEV_STATS,
	(uint64_t **)&newvs, &c) == 0);

	/*
	* Print the vdev name unless it's is a histogram. Histograms
	* display the vdev name in the header itself.
	*/
	if (!(cb->cb_flags & IOS_ANYHISTO_M)) {
	if (cb->cb_scripted) {
	printf("%s", name);
	} else {
	if (strlen(name) + depth > cb->cb_namewidth)
	(void) printf("%*s%s", depth, "", name);
	else
	(void) printf("%s%s%s", depth, "", name,
	(int)(cb->cb_namewidth - strlen(name) -
	depth), "");
	}
	}

	/* Calculate our scaling factor */
	tdelta = newvs->vs_timestamp - oldvs->vs_timestamp;
	if ((oldvs->vs_timestamp == 0) && (cb->cb_flags & IOS_ANYHISTO_M)) {
	/*
	* If we specify printing histograms with no time interval, then
	* print the histogram numbers over the entire lifetime of the
	* vdev.
	*/
	scale = 1;
	} else {
	if (tdelta == 0)
	scale = 1.0;
	else
	scale = (double)NANOSEC / tdelta;
	}

	if (cb->cb_flags & IOS_DEFAULT_M) {
	calc_default_iostats(oldvs, newvs, calcvs);
	print_iostat_default(calcvs, cb, scale);
	}
	if (cb->cb_flags & IOS_LATENCY_M)
	print_iostat_latency(cb, oldnv, newnv);
	if (cb->cb_flags & IOS_QUEUES_M)
	print_iostat_queues(cb, oldnv, newnv);
	if (cb->cb_flags & IOS_ANYHISTO_M) {
	printf("\n");
	print_iostat_histos(cb, oldnv, newnv, scale, name);
	}

	if (cb->vcdl != NULL) {
	char *path;
	if (nvlist_lookup_string(newnv, ZPOOL_CONFIG_PATH,
	&path) == 0) {
	printf(" ");
	zpool_print_cmd(cb->vcdl, zpool_get_name(zhp), path);
	}
	}

	if (!(cb->cb_flags & IOS_ANYHISTO_M))
	printf("\n");

	ret++;

	children:

	free(calcvs);

	if (!cb->cb_verbose)
	return (ret);

	if (nvlist_lookup_nvlist_array(newnv, ZPOOL_CONFIG_CHILDREN,
	&newchild, &children) != 0)
	return (ret);

	if (oldnv) {
	if (nvlist_lookup_nvlist_array(oldnv, ZPOOL_CONFIG_CHILDREN,
	&oldchild, &oldchildren) != 0)
	return (ret);

	children = MIN(oldchildren, children);
	}

	/*
	* print normal top-level devices
	*/
	for (c = 0; c < children; c++) {
	uint64_t ishole = B_FALSE, islog = B_FALSE;

	(void) nvlist_lookup_uint64(newchild[c], ZPOOL_CONFIG_IS_HOLE,
	&ishole);

	(void) nvlist_lookup_uint64(newchild[c], ZPOOL_CONFIG_IS_LOG,
	&islog);

	if (ishole \|\| islog)
	continue;

	if (nvlist_exists(newchild[c], ZPOOL_CONFIG_ALLOCATION_BIAS))
	continue;

	vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
	cb->cb_name_flags);
	ret += print_vdev_stats(zhp, vname, oldnv ? oldchild[c] : NULL,
	newchild[c], cb, depth + 2);
	free(vname);
	}

	/*
	* print all other top-level devices
	*/
	for (uint_t n = 0; n < 3; n++) {
	boolean_t printed = B_FALSE;

	for (c = 0; c < children; c++) {
	uint64_t islog = B_FALSE;
	char *bias = NULL;
	char *type = NULL;

	(void) nvlist_lookup_uint64(newchild[c],
	ZPOOL_CONFIG_IS_LOG, &islog);
	if (islog) {
	bias = VDEV_ALLOC_CLASS_LOGS;
	} else {
	(void) nvlist_lookup_string(newchild[c],
	ZPOOL_CONFIG_ALLOCATION_BIAS, &bias);
	(void) nvlist_lookup_string(newchild[c],
	ZPOOL_CONFIG_TYPE, &type);
	}
	if (bias == NULL \|\| strcmp(bias, class_name[n]) != 0)
	continue;
	if (!islog && strcmp(type, VDEV_TYPE_INDIRECT) == 0)
	continue;

	if (!printed) {
	if ((!(cb->cb_flags & IOS_ANYHISTO_M)) &&
	!cb->cb_scripted && !cb->cb_vdev_names) {
	print_iostat_dashes(cb, 0,
	class_name[n]);
	}
	printf("\n");
	printed = B_TRUE;
	}

	vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
	cb->cb_name_flags);
	ret += print_vdev_stats(zhp, vname, oldnv ?
	oldchild[c] : NULL, newchild[c], cb, depth + 2);
	free(vname);
	}
	}

	/*
	* Include level 2 ARC devices in iostat output
	*/
	if (nvlist_lookup_nvlist_array(newnv, ZPOOL_CONFIG_L2CACHE,
	&newchild, &children) != 0)
	return (ret);

	if (oldnv) {
	if (nvlist_lookup_nvlist_array(oldnv, ZPOOL_CONFIG_L2CACHE,
	&oldchild, &oldchildren) != 0)
	return (ret);

	children = MIN(oldchildren, children);
	}

	if (children > 0) {
	if ((!(cb->cb_flags & IOS_ANYHISTO_M)) && !cb->cb_scripted &&
	!cb->cb_vdev_names) {
	print_iostat_dashes(cb, 0, "cache");
	}
	printf("\n");

	for (c = 0; c < children; c++) {
	vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
	cb->cb_name_flags);
	ret += print_vdev_stats(zhp, vname, oldnv ? oldchild[c]
	: NULL, newchild[c], cb, depth + 2);
	free(vname);
	}
	}

	return (ret);
	}

	static int
	refresh_iostat(zpool_handle_t zhp, void data)
	{
	iostat_cbdata_t *cb = data;
	boolean_t missing;

	/*
	* If the pool has disappeared, remove it from the list and continue.
	*/
	if (zpool_refresh_stats(zhp, &missing) != 0)
	return (-1);

	if (missing)
	pool_list_remove(cb->cb_list, zhp);

	return (0);
	}

	/*
	* Callback to print out the iostats for the given pool.
	*/
	static int
	print_iostat(zpool_handle_t zhp, void data)
	{
	iostat_cbdata_t *cb = data;
	nvlist_t oldconfig, newconfig;
	nvlist_t oldnvroot, newnvroot;
	int ret;

	newconfig = zpool_get_config(zhp, &oldconfig);

	if (cb->cb_iteration == 1)
	oldconfig = NULL;

	verify(nvlist_lookup_nvlist(newconfig, ZPOOL_CONFIG_VDEV_TREE,
	&newnvroot) == 0);

	if (oldconfig == NULL)
	oldnvroot = NULL;
	else
	verify(nvlist_lookup_nvlist(oldconfig, ZPOOL_CONFIG_VDEV_TREE,
	&oldnvroot) == 0);

	ret = print_vdev_stats(zhp, zpool_get_name(zhp), oldnvroot, newnvroot,
	cb, 0);
	if ((ret != 0) && !(cb->cb_flags & IOS_ANYHISTO_M) &&
	!cb->cb_scripted && cb->cb_verbose && !cb->cb_vdev_names_count) {
	print_iostat_separator(cb);
	if (cb->vcdl != NULL) {
	print_cmd_columns(cb->vcdl, 1);
	}
	printf("\n");
	}

	return (ret);
	}

	static int
	get_columns(void)
	{
	struct winsize ws;
	int columns = 80;
	int error;

	if (isatty(STDOUT_FILENO)) {
	error = ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws);
	if (error == 0)
	columns = ws.ws_col;
	} else {
	columns = 999;
	}

	return (columns);
	}

	/*
	* Return the required length of the pool/vdev name column. The minimum
	* allowed width and output formatting flags must be provided.
	*/
	static int
	get_namewidth(zpool_handle_t *zhp, int min_width, int flags, boolean_t verbose)
	{
	nvlist_t config, nvroot;
	int width = min_width;

	if ((config = zpool_get_config(zhp, NULL)) != NULL) {
	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
	&nvroot) == 0);
	unsigned int poolname_len = strlen(zpool_get_name(zhp));
	if (verbose == B_FALSE) {
	width = MAX(poolname_len, min_width);
	} else {
	width = MAX(poolname_len,
	max_width(zhp, nvroot, 0, min_width, flags));
	}
	}

	return (width);
	}

	/*
	* Parse the input string, get the 'interval' and 'count' value if there is one.
	*/
	static void
	get_interval_count(int argcp, char argv, float iv,
	unsigned long *cnt)
	{
	float interval = 0;
	unsigned long count = 0;
	int argc = *argcp;

	/*
	* Determine if the last argument is an integer or a pool name
	*/
	if (argc > 0 && zfs_isnumber(argv[argc - 1])) {
	char *end;

	errno = 0;
	interval = strtof(argv[argc - 1], &end);

	if (*end == '\0' && errno == 0) {
	if (interval == 0) {
	(void) fprintf(stderr, gettext(
	"interval cannot be zero\n"));
	usage(B_FALSE);
	}
	/*
	* Ignore the last parameter
	*/
	argc--;
	} else {
	/*
	* If this is not a valid number, just plow on. The
	* user will get a more informative error message later
	* on.
	*/
	interval = 0;
	}
	}

	/*
	* If the last argument is also an integer, then we have both a count
	* and an interval.
	*/
	if (argc > 0 && zfs_isnumber(argv[argc - 1])) {
	char *end;

	errno = 0;
	count = interval;
	interval = strtof(argv[argc - 1], &end);

	if (*end == '\0' && errno == 0) {
	if (interval == 0) {
	(void) fprintf(stderr, gettext(
	"interval cannot be zero\n"));
	usage(B_FALSE);
	}

	/*
	* Ignore the last parameter
	*/
	argc--;
	} else {
	interval = 0;
	}
	}

	*iv = interval;
	*cnt = count;
	*argcp = argc;
	}

	static void
	get_timestamp_arg(char c)
	{
	if (c == 'u')
	timestamp_fmt = UDATE;
	else if (c == 'd')
	timestamp_fmt = DDATE;
	else
	usage(B_FALSE);
	}

	/*
	* Return stat flags that are supported by all pools by both the module and
	* zpool iostat. "*data" should be initialized to all 0xFFs before running.
	* It will get ANDed down until only the flags that are supported on all pools
	* remain.
	*/
	static int
	get_stat_flags_cb(zpool_handle_t zhp, void data)
	{
	uint64_t *mask = data;
	nvlist_t config, nvroot, *nvx;
	uint64_t flags = 0;
	int i, j;

	config = zpool_get_config(zhp, NULL);
	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
	&nvroot) == 0);

	/* Default stats are always supported, but for completeness.. */
	if (nvlist_exists(nvroot, ZPOOL_CONFIG_VDEV_STATS))
	flags \|= IOS_DEFAULT_M;

	/* Get our extended stats nvlist from the main list */
	if (nvlist_lookup_nvlist(nvroot, ZPOOL_CONFIG_VDEV_STATS_EX,
	&nvx) != 0) {
	/*
	* No extended stats; they're probably running an older
	* module. No big deal, we support that too.
	*/
	goto end;
	}

	/* For each extended stat, make sure all its nvpairs are supported */
	for (j = 0; j < ARRAY_SIZE(vsx_type_to_nvlist); j++) {
	if (!vsx_type_to_nvlist[j][0])
	continue;

	/* Start off by assuming the flag is supported, then check */
	flags \|= (1ULL << j);
	for (i = 0; vsx_type_to_nvlist[j][i]; i++) {
	if (!nvlist_exists(nvx, vsx_type_to_nvlist[j][i])) {
	/* flag isn't supported */
	flags = flags & ~(1ULL << j);
	break;
	}
	}
	}
	end:
	mask = mask & flags;
	return (0);
	}

	/*
	* Return a bitmask of stats that are supported on all pools by both the module
	* and zpool iostat.
	*/
	static uint64_t
	get_stat_flags(zpool_list_t *list)
	{
	uint64_t mask = -1;

	/*
	* get_stat_flags_cb() will lop off bits from "mask" until only the
	* flags that are supported on all pools remain.
	*/
	pool_list_iter(list, B_FALSE, get_stat_flags_cb, &mask);
	return (mask);
	}

	/*
	* Return 1 if cb_data->cb_vdev_names[0] is this vdev's name, 0 otherwise.
	*/
	static int
	is_vdev_cb(zpool_handle_t zhp, nvlist_t nv, void *cb_data)
	{
	iostat_cbdata_t *cb = cb_data;
	char *name = NULL;
	int ret = 0;

	name = zpool_vdev_name(g_zfs, zhp, nv, cb->cb_name_flags);

	if (strcmp(name, cb->cb_vdev_names[0]) == 0)
	ret = 1; /* match */
	free(name);

	return (ret);
	}

	/*
	* Returns 1 if cb_data->cb_vdev_names[0] is a vdev name, 0 otherwise.
	*/
	static int
	is_vdev(zpool_handle_t zhp, void cb_data)
	{
	return (for_each_vdev(zhp, is_vdev_cb, cb_data));
	}

	/*
	* Check if vdevs are in a pool
	*
	* Return 1 if all argv[] strings are vdev names in pool "pool_name". Otherwise
	* return 0. If pool_name is NULL, then search all pools.
	*/
	static int
	are_vdevs_in_pool(int argc, char *argv, char pool_name,
	iostat_cbdata_t *cb)
	{
	char **tmp_name;
	int ret = 0;
	int i;
	int pool_count = 0;

	if ((argc == 0) \|\| !*argv)
	return (0);

	if (pool_name)
	pool_count = 1;

	/* Temporarily hijack cb_vdev_names for a second... */
	tmp_name = cb->cb_vdev_names;

	/* Go though our list of prospective vdev names */
	for (i = 0; i < argc; i++) {
	cb->cb_vdev_names = argv + i;

	/* Is this name a vdev in our pools? */
	ret = for_each_pool(pool_count, &pool_name, B_TRUE, NULL,
	B_FALSE, is_vdev, cb);
	if (!ret) {
	/* No match */
	break;
	}
	}

	cb->cb_vdev_names = tmp_name;

	return (ret);
	}

	static int
	is_pool_cb(zpool_handle_t zhp, void data)
	{
	char *name = data;
	if (strcmp(name, zpool_get_name(zhp)) == 0)
	return (1);

	return (0);
	}

	/*
	* Do we have a pool named *name? If so, return 1, otherwise 0.
	*/
	static int
	is_pool(char *name)
	{
	return (for_each_pool(0, NULL, B_TRUE, NULL, B_FALSE, is_pool_cb,
	name));
	}

	/* Are all our argv[] strings pool names? If so return 1, 0 otherwise. */
	static int
	are_all_pools(int argc, char **argv)
	{
	if ((argc == 0) \|\| !*argv)
	return (0);

	while (--argc >= 0)
	if (!is_pool(argv[argc]))
	return (0);

	return (1);
	}

	/*
	* Helper function to print out vdev/pool names we can't resolve. Used for an
	* error message.
	*/
	static void
	error_list_unresolved_vdevs(int argc, char *argv, char pool_name,
	iostat_cbdata_t *cb)
	{
	int i;
	char *name;
	char *str;
	for (i = 0; i < argc; i++) {
	name = argv[i];

	if (is_pool(name))
	str = gettext("pool");
	else if (are_vdevs_in_pool(1, &name, pool_name, cb))
	str = gettext("vdev in this pool");
	else if (are_vdevs_in_pool(1, &name, NULL, cb))
	str = gettext("vdev in another pool");
	else
	str = gettext("unknown");

	fprintf(stderr, "\t%s (%s)\n", name, str);
	}
	}

	/*
	* Same as get_interval_count(), but with additional checks to not misinterpret
	* guids as interval/count values. Assumes VDEV_NAME_GUID is set in
	* cb.cb_name_flags.
	*/
	static void
	get_interval_count_filter_guids(int argc, char argv, float interval,
	unsigned long count, iostat_cbdata_t cb)
	{
	char **tmpargv = argv;
	int argc_for_interval = 0;

	/* Is the last arg an interval value? Or a guid? */
	if (argc >= 1 && !are_vdevs_in_pool(1, &argv[argc - 1], NULL, cb)) {
	/*
	* The last arg is not a guid, so it's probably an
	* interval value.
	*/
	argc_for_interval++;

	if (*argc >= 2 &&
	!are_vdevs_in_pool(1, &argv[*argc - 2], NULL, cb)) {
	/*
	* The 2nd to last arg is not a guid, so it's probably
	* an interval value.
	*/
	argc_for_interval++;
	}
	}

	/* Point to our list of possible intervals */
	tmpargv = &argv[*argc - argc_for_interval];

	argc = argc - argc_for_interval;
	get_interval_count(&argc_for_interval, tmpargv,
	interval, count);
	}

	/*
	* Floating point sleep(). Allows you to pass in a floating point value for
	* seconds.
	*/
	static void
	fsleep(float sec)
	{
	struct timespec req;
	req.tv_sec = floor(sec);
	req.tv_nsec = (sec - (float)req.tv_sec) * NANOSEC;
	nanosleep(&req, NULL);
	}

	/*
	* Terminal height, in rows. Returns -1 if stdout is not connected to a TTY or
	* if we were unable to determine its size.
	*/
	static int
	terminal_height(void)
	{
	struct winsize win;

	if (isatty(STDOUT_FILENO) == 0)
	return (-1);

	if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 && win.ws_row > 0)
	return (win.ws_row);

	return (-1);
	}

	/*
	* Run one of the zpool status/iostat -c scripts with the help (-h) option and
	* print the result.
	*
	* name: Short name of the script ('iostat').
	* path: Full path to the script ('/usr/local/etc/zfs/zpool.d/iostat');
	*/
	static void
	print_zpool_script_help(char name, char path)
	{
	char *argv[] = {path, "-h", NULL};
	char **lines = NULL;
	int lines_cnt = 0;
	int rc;

	rc = libzfs_run_process_get_stdout_nopath(path, argv, NULL, &lines,
	&lines_cnt);
	if (rc != 0 \|\| lines == NULL \|\| lines_cnt <= 0) {
	if (lines != NULL)
	libzfs_free_str_array(lines, lines_cnt);
	return;
	}

	for (int i = 0; i < lines_cnt; i++)
	if (!is_blank_str(lines[i]))
	printf(" %-14s %s\n", name, lines[i]);

	libzfs_free_str_array(lines, lines_cnt);
	}

	/*
	* Go though the zpool status/iostat -c scripts in the user's path, run their
	* help option (-h), and print out the results.
	*/
	static void
	print_zpool_dir_scripts(char *dirpath)
	{
	DIR *dir;
	struct dirent *ent;
	char fullpath[MAXPATHLEN];
	struct stat dir_stat;

	if ((dir = opendir(dirpath)) != NULL) {
	/* print all the files and directories within directory */
	while ((ent = readdir(dir)) != NULL) {
	sprintf(fullpath, "%s/%s", dirpath, ent->d_name);

	/* Print the scripts */
	if (stat(fullpath, &dir_stat) == 0)
	if (dir_stat.st_mode & S_IXUSR &&
	S_ISREG(dir_stat.st_mode))
	print_zpool_script_help(ent->d_name,
	fullpath);
	}
	closedir(dir);
	}
	}

	/*
	* Print out help text for all zpool status/iostat -c scripts.
	*/
	static void
	print_zpool_script_list(char *subcommand)
	{
	char dir, sp, *tmp;

	printf(gettext("Available 'zpool %s -c' commands:\n"), subcommand);

	sp = zpool_get_cmd_search_path();
	if (sp == NULL)
	return;

	for (dir = strtok_r(sp, ":", &tmp);
	dir != NULL;
	dir = strtok_r(NULL, ":", &tmp))
	print_zpool_dir_scripts(dir);

	free(sp);
	}

	/*
	* Set the minimum pool/vdev name column width. The width must be at least 10,
	* but may be as large as the column width - 42 so it still fits on one line.
	* NOTE: 42 is the width of the default capacity/operations/bandwidth output
	*/
	static int
	get_namewidth_iostat(zpool_handle_t zhp, void data)
	{
	iostat_cbdata_t *cb = data;
	int width, available_width;

	/*
	* get_namewidth() returns the maximum width of any name in that column
	* for any pool/vdev/device line that will be output.
	*/
	width = get_namewidth(zhp, cb->cb_namewidth, cb->cb_name_flags,
	cb->cb_verbose);

	/*
	* The width we are calculating is the width of the header and also the
	* padding width for names that are less than maximum width. The stats
	* take up 42 characters, so the width available for names is:
	*/
	available_width = get_columns() - 42;

	/*
	* If the maximum width fits on a screen, then great! Make everything
	* line up by justifying all lines to the same width. If that max
	* width is larger than what's available, the name plus stats won't fit
	* on one line, and justifying to that width would cause every line to
	* wrap on the screen. We only want lines with long names to wrap.
	* Limit the padding to what won't wrap.
	*/
	if (width > available_width)
	width = available_width;

	/*
	* And regardless of whatever the screen width is (get_columns can
	* return 0 if the width is not known or less than 42 for a narrow
	* terminal) have the width be a minimum of 10.
	*/
	if (width < 10)
	width = 10;

	/* Save the calculated width */
	cb->cb_namewidth = width;

	return (0);
	}

	/*
	* zpool iostat [[-c [script1,script2,...]] [-lq]\|[-rw]] [-ghHLpPvy] [-n name]
	* [-T d\|u] [[ pool ...]\|[pool vdev ...]\|[vdev ...]]
	* [interval [count]]
	*
	* -c CMD For each vdev, run command CMD
	* -g Display guid for individual vdev name.
	* -L Follow links when resolving vdev path name.
	* -P Display full path for vdev name.
	* -v Display statistics for individual vdevs
	* -h Display help
	* -p Display values in parsable (exact) format.
	* -H Scripted mode. Don't display headers, and separate properties
	* by a single tab.
	* -l Display average latency
	* -q Display queue depths
	* -w Display latency histograms
	* -r Display request size histogram
	* -T Display a timestamp in date(1) or Unix format
	* -n Only print headers once
	*
	* This command can be tricky because we want to be able to deal with pool
	* creation/destruction as well as vdev configuration changes. The bulk of this
	* processing is handled by the pool_list_* routines in zpool_iter.c. We rely
	* on pool_list_update() to detect the addition of new pools. Configuration
	* changes are all handled within libzfs.
	*/
	int
	zpool_do_iostat(int argc, char **argv)
	{
	int c;
	int ret;
	int npools;
	float interval = 0;
	unsigned long count = 0;
	int winheight = 24;
	zpool_list_t *list;
	boolean_t verbose = B_FALSE;
	boolean_t latency = B_FALSE, l_histo = B_FALSE, rq_histo = B_FALSE;
	boolean_t queues = B_FALSE, parsable = B_FALSE, scripted = B_FALSE;
	boolean_t omit_since_boot = B_FALSE;
	boolean_t guid = B_FALSE;
	boolean_t follow_links = B_FALSE;
	boolean_t full_name = B_FALSE;
	boolean_t headers_once = B_FALSE;
	iostat_cbdata_t cb = { 0 };
	char *cmd = NULL;

	/* Used for printing error message */
	const char flag_to_arg[] = {[IOS_LATENCY] = 'l', [IOS_QUEUES] = 'q',
	[IOS_L_HISTO] = 'w', [IOS_RQ_HISTO] = 'r'};

	uint64_t unsupported_flags;

	/* check options */
	while ((c = getopt(argc, argv, "c:gLPT:vyhplqrwnH")) != -1) {
	switch (c) {
	case 'c':
	if (cmd != NULL) {
	fprintf(stderr,
	gettext("Can't set -c flag twice\n"));
	exit(1);
	}

	if (getenv("ZPOOL_SCRIPTS_ENABLED") != NULL &&
	!libzfs_envvar_is_set("ZPOOL_SCRIPTS_ENABLED")) {
	fprintf(stderr, gettext(
	"Can't run -c, disabled by "
	"ZPOOL_SCRIPTS_ENABLED.\n"));
	exit(1);
	}

	if ((getuid() <= 0 \|\| geteuid() <= 0) &&
	!libzfs_envvar_is_set("ZPOOL_SCRIPTS_AS_ROOT")) {
	fprintf(stderr, gettext(
	"Can't run -c with root privileges "
	"unless ZPOOL_SCRIPTS_AS_ROOT is set.\n"));
	exit(1);
	}
	cmd = optarg;
	verbose = B_TRUE;
	break;
	case 'g':
	guid = B_TRUE;
	break;
	case 'L':
	follow_links = B_TRUE;
	break;
	case 'P':
	full_name = B_TRUE;
	break;
	case 'T':
	get_timestamp_arg(*optarg);
	break;
	case 'v':
	verbose = B_TRUE;
	break;
	case 'p':
	parsable = B_TRUE;
	break;
	case 'l':
	latency = B_TRUE;
	break;
	case 'q':
	queues = B_TRUE;
	break;
	case 'H':
	scripted = B_TRUE;
	break;
	case 'w':
	l_histo = B_TRUE;
	break;
	case 'r':
	rq_histo = B_TRUE;
	break;
	case 'y':
	omit_since_boot = B_TRUE;
	break;
	case 'n':
	headers_once = B_TRUE;
	break;
	case 'h':
	usage(B_FALSE);
	break;
	case '?':
	if (optopt == 'c') {
	print_zpool_script_list("iostat");
	exit(0);
	} else {
	fprintf(stderr,
	gettext("invalid option '%c'\n"), optopt);
	}
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	cb.cb_literal = parsable;
	cb.cb_scripted = scripted;

	if (guid)
	cb.cb_name_flags \|= VDEV_NAME_GUID;
	if (follow_links)
	cb.cb_name_flags \|= VDEV_NAME_FOLLOW_LINKS;
	if (full_name)
	cb.cb_name_flags \|= VDEV_NAME_PATH;
	cb.cb_iteration = 0;
	cb.cb_namewidth = 0;
	cb.cb_verbose = verbose;

	/* Get our interval and count values (if any) */
	if (guid) {
	get_interval_count_filter_guids(&argc, argv, &interval,
	&count, &cb);
	} else {
	get_interval_count(&argc, argv, &interval, &count);
	}

	if (argc == 0) {
	/* No args, so just print the defaults. */
	} else if (are_all_pools(argc, argv)) {
	/* All the args are pool names */
	} else if (are_vdevs_in_pool(argc, argv, NULL, &cb)) {
	/* All the args are vdevs */
	cb.cb_vdev_names = argv;
	cb.cb_vdev_names_count = argc;
	argc = 0; /* No pools to process */
	} else if (are_all_pools(1, argv)) {
	/* The first arg is a pool name */
	if (are_vdevs_in_pool(argc - 1, argv + 1, argv[0], &cb)) {
	/* ...and the rest are vdev names */
	cb.cb_vdev_names = argv + 1;
	cb.cb_vdev_names_count = argc - 1;
	argc = 1; /* One pool to process */
	} else {
	fprintf(stderr, gettext("Expected either a list of "));
	fprintf(stderr, gettext("pools, or list of vdevs in"));
	fprintf(stderr, " \"%s\", ", argv[0]);
	fprintf(stderr, gettext("but got:\n"));
	error_list_unresolved_vdevs(argc - 1, argv + 1,
	argv[0], &cb);
	fprintf(stderr, "\n");
	usage(B_FALSE);
	return (1);
	}
	} else {
	/*
	* The args don't make sense. The first arg isn't a pool name,
	* nor are all the args vdevs.
	*/
	fprintf(stderr, gettext("Unable to parse pools/vdevs list.\n"));
	fprintf(stderr, "\n");
	return (1);
	}

	if (cb.cb_vdev_names_count != 0) {
	/*
	* If user specified vdevs, it implies verbose.
	*/
	cb.cb_verbose = B_TRUE;
	}

	/*
	* Construct the list of all interesting pools.
	*/
	ret = 0;
	if ((list = pool_list_get(argc, argv, NULL, parsable, &ret)) == NULL)
	return (1);

	if (pool_list_count(list) == 0 && argc != 0) {
	pool_list_free(list);
	return (1);
	}

	if (pool_list_count(list) == 0 && interval == 0) {
	pool_list_free(list);
	(void) fprintf(stderr, gettext("no pools available\n"));
	return (1);
	}

	if ((l_histo \|\| rq_histo) && (cmd != NULL \|\| latency \|\| queues)) {
	pool_list_free(list);
	(void) fprintf(stderr,
	gettext("[-r\|-w] isn't allowed with [-c\|-l\|-q]\n"));
	usage(B_FALSE);
	return (1);
	}

	if (l_histo && rq_histo) {
	pool_list_free(list);
	(void) fprintf(stderr,
	gettext("Only one of [-r\|-w] can be passed at a time\n"));
	usage(B_FALSE);
	return (1);
	}

	/*
	* Enter the main iostat loop.
	*/
	cb.cb_list = list;

	if (l_histo) {
	/*
	* Histograms tables look out of place when you try to display
	* them with the other stats, so make a rule that you can only
	* print histograms by themselves.
	*/
	cb.cb_flags = IOS_L_HISTO_M;
	} else if (rq_histo) {
	cb.cb_flags = IOS_RQ_HISTO_M;
	} else {
	cb.cb_flags = IOS_DEFAULT_M;
	if (latency)
	cb.cb_flags \|= IOS_LATENCY_M;
	if (queues)
	cb.cb_flags \|= IOS_QUEUES_M;
	}

	/*
	* See if the module supports all the stats we want to display.
	*/
	unsupported_flags = cb.cb_flags & ~get_stat_flags(list);
	if (unsupported_flags) {
	uint64_t f;
	int idx;
	fprintf(stderr,
	gettext("The loaded zfs module doesn't support:"));

	/* for each bit set in unsupported_flags */
	for (f = unsupported_flags; f; f &= ~(1ULL << idx)) {
	idx = lowbit64(f) - 1;
	fprintf(stderr, " -%c", flag_to_arg[idx]);
	}

	fprintf(stderr, ". Try running a newer module.\n");
	pool_list_free(list);

	return (1);
	}

	for (;;) {
	if ((npools = pool_list_count(list)) == 0)
	(void) fprintf(stderr, gettext("no pools available\n"));
	else {
	/*
	* If this is the first iteration and -y was supplied
	* we skip any printing.
	*/
	boolean_t skip = (omit_since_boot &&
	cb.cb_iteration == 0);

	/*
	* Refresh all statistics. This is done as an
	* explicit step before calculating the maximum name
	* width, so that any * configuration changes are
	* properly accounted for.
	*/
	(void) pool_list_iter(list, B_FALSE, refresh_iostat,
	&cb);

	/*
	* Iterate over all pools to determine the maximum width
	* for the pool / device name column across all pools.
	*/
	cb.cb_namewidth = 0;
	(void) pool_list_iter(list, B_FALSE,
	get_namewidth_iostat, &cb);

	if (timestamp_fmt != NODATE)
	print_timestamp(timestamp_fmt);

	if (cmd != NULL && cb.cb_verbose &&
	!(cb.cb_flags & IOS_ANYHISTO_M)) {
	cb.vcdl = all_pools_for_each_vdev_run(argc,
	argv, cmd, g_zfs, cb.cb_vdev_names,
	cb.cb_vdev_names_count, cb.cb_name_flags);
	} else {
	cb.vcdl = NULL;
	}


	/*
	* Check terminal size so we can print headers
	* even when terminal window has its height
	* changed.
	*/
	winheight = terminal_height();
	/*
	* Are we connected to TTY? If not, headers_once
	* should be true, to avoid breaking scripts.
	*/
	if (winheight < 0)
	headers_once = B_TRUE;

	/*
	* If it's the first time and we're not skipping it,
	* or either skip or verbose mode, print the header.
	*
	* The histogram code explicitly prints its header on
	* every vdev, so skip this for histograms.
	*/
	if (((++cb.cb_iteration == 1 && !skip) \|\|
	(skip != verbose) \|\|
	(!headers_once &&
	(cb.cb_iteration % winheight) == 0)) &&
	(!(cb.cb_flags & IOS_ANYHISTO_M)) &&
	!cb.cb_scripted)
	print_iostat_header(&cb);

	if (skip) {
	(void) fsleep(interval);
	continue;
	}

	pool_list_iter(list, B_FALSE, print_iostat, &cb);

	/*
	* If there's more than one pool, and we're not in
	* verbose mode (which prints a separator for us),
	* then print a separator.
	*
	* In addition, if we're printing specific vdevs then
	* we also want an ending separator.
	*/
	if (((npools > 1 && !verbose &&
	!(cb.cb_flags & IOS_ANYHISTO_M)) \|\|
	(!(cb.cb_flags & IOS_ANYHISTO_M) &&
	cb.cb_vdev_names_count)) &&
	!cb.cb_scripted) {
	print_iostat_separator(&cb);
	if (cb.vcdl != NULL)
	print_cmd_columns(cb.vcdl, 1);
	printf("\n");
	}

	if (cb.vcdl != NULL)
	free_vdev_cmd_data_list(cb.vcdl);

	}

	/*
	* Flush the output so that redirection to a file isn't buffered
	* indefinitely.
	*/
	(void) fflush(stdout);

	if (interval == 0)
	break;

	if (count != 0 && --count == 0)
	break;

	(void) fsleep(interval);
	}

	pool_list_free(list);

	return (ret);
	}

	typedef struct list_cbdata {
	boolean_t cb_verbose;
	int cb_name_flags;
	int cb_namewidth;
	boolean_t cb_scripted;
	zprop_list_t *cb_proplist;
	boolean_t cb_literal;
	} list_cbdata_t;


	/*
	* Given a list of columns to display, output appropriate headers for each one.
	*/
	static void
	print_header(list_cbdata_t *cb)
	{
	zprop_list_t *pl = cb->cb_proplist;
	char headerbuf[ZPOOL_MAXPROPLEN];
	const char *header;
	boolean_t first = B_TRUE;
	boolean_t right_justify;
	size_t width = 0;

	for (; pl != NULL; pl = pl->pl_next) {
	width = pl->pl_width;
	if (first && cb->cb_verbose) {
	/*
	* Reset the width to accommodate the verbose listing
	* of devices.
	*/
	width = cb->cb_namewidth;
	}

	if (!first)
	(void) printf(" ");
	else
	first = B_FALSE;

	right_justify = B_FALSE;
	if (pl->pl_prop != ZPROP_INVAL) {
	header = zpool_prop_column_name(pl->pl_prop);
	right_justify = zpool_prop_align_right(pl->pl_prop);
	} else {
	int i;

	for (i = 0; pl->pl_user_prop[i] != '\0'; i++)
	headerbuf[i] = toupper(pl->pl_user_prop[i]);
	headerbuf[i] = '\0';
	header = headerbuf;
	}

	if (pl->pl_next == NULL && !right_justify)
	(void) printf("%s", header);
	else if (right_justify)
	(void) printf("%*s", (int)width, header);
	else
	(void) printf("%-*s", (int)width, header);
	}

	(void) printf("\n");
	}

	/*
	* Given a pool and a list of properties, print out all the properties according
	* to the described layout. Used by zpool_do_list().
	*/
	static void
	print_pool(zpool_handle_t zhp, list_cbdata_t cb)
	{
	zprop_list_t *pl = cb->cb_proplist;
	boolean_t first = B_TRUE;
	char property[ZPOOL_MAXPROPLEN];
	char *propstr;
	boolean_t right_justify;
	size_t width;

	for (; pl != NULL; pl = pl->pl_next) {

	width = pl->pl_width;
	if (first && cb->cb_verbose) {
	/*
	* Reset the width to accommodate the verbose listing
	* of devices.
	*/
	width = cb->cb_namewidth;
	}

	if (!first) {
	if (cb->cb_scripted)
	(void) printf("\t");
	else
	(void) printf(" ");
	} else {
	first = B_FALSE;
	}

	right_justify = B_FALSE;
	if (pl->pl_prop != ZPROP_INVAL) {
	if (zpool_get_prop(zhp, pl->pl_prop, property,
	sizeof (property), NULL, cb->cb_literal) != 0)
	propstr = "-";
	else
	propstr = property;

	right_justify = zpool_prop_align_right(pl->pl_prop);
	} else if ((zpool_prop_feature(pl->pl_user_prop) \|\|
	zpool_prop_unsupported(pl->pl_user_prop)) &&
	zpool_prop_get_feature(zhp, pl->pl_user_prop, property,
	sizeof (property)) == 0) {
	propstr = property;
	} else {
	propstr = "-";
	}


	/*
	* If this is being called in scripted mode, or if this is the
	* last column and it is left-justified, don't include a width
	* format specifier.
	*/
	if (cb->cb_scripted \|\| (pl->pl_next == NULL && !right_justify))
	(void) printf("%s", propstr);
	else if (right_justify)
	(void) printf("%*s", (int)width, propstr);
	else
	(void) printf("%-*s", (int)width, propstr);
	}

	(void) printf("\n");
	}

	static void
	print_one_column(zpool_prop_t prop, uint64_t value, const char *str,
	boolean_t scripted, boolean_t valid, enum zfs_nicenum_format format)
	{
	char propval[64];
	boolean_t fixed;
	size_t width = zprop_width(prop, &fixed, ZFS_TYPE_POOL);

	switch (prop) {
	case ZPOOL_PROP_EXPANDSZ:
	case ZPOOL_PROP_CHECKPOINT:
	case ZPOOL_PROP_DEDUPRATIO:
	if (value == 0)
	(void) strlcpy(propval, "-", sizeof (propval));
	else
	zfs_nicenum_format(value, propval, sizeof (propval),
	format);
	break;
	case ZPOOL_PROP_FRAGMENTATION:
	if (value == ZFS_FRAG_INVALID) {
	(void) strlcpy(propval, "-", sizeof (propval));
	} else if (format == ZFS_NICENUM_RAW) {
	(void) snprintf(propval, sizeof (propval), "%llu",
	(unsigned long long)value);
	} else {
	(void) snprintf(propval, sizeof (propval), "%llu%%",
	(unsigned long long)value);
	}
	break;
	case ZPOOL_PROP_CAPACITY:
	/* capacity value is in parts-per-10,000 (aka permyriad) */
	if (format == ZFS_NICENUM_RAW)
	(void) snprintf(propval, sizeof (propval), "%llu",
	(unsigned long long)value / 100);
	else
	(void) snprintf(propval, sizeof (propval),
	value < 1000 ? "%1.2f%%" : value < 10000 ?
	"%2.1f%%" : "%3.0f%%", value / 100.0);
	break;
	case ZPOOL_PROP_HEALTH:
	width = 8;
	(void) strlcpy(propval, str, sizeof (propval));
	break;
	default:
	zfs_nicenum_format(value, propval, sizeof (propval), format);
	}

	if (!valid)
	(void) strlcpy(propval, "-", sizeof (propval));

	if (scripted)
	(void) printf("\t%s", propval);
	else
	(void) printf(" %*s", (int)width, propval);
	}

	/*
	* print static default line per vdev
	* not compatible with '-o' <proplist> option
	*/
	static void
	print_list_stats(zpool_handle_t zhp, const char name, nvlist_t *nv,
	list_cbdata_t *cb, int depth, boolean_t isspare)
	{
	nvlist_t **child;
	vdev_stat_t *vs;
	uint_t c, children;
	char *vname;
	boolean_t scripted = cb->cb_scripted;
	uint64_t islog = B_FALSE;
	char dashes = "%-s - - - - "
	"- - - - -\n";

	verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
	(uint64_t **)&vs, &c) == 0);

	if (name != NULL) {
	boolean_t toplevel = (vs->vs_space != 0);
	uint64_t cap;
	enum zfs_nicenum_format format;
	const char *state;

	if (cb->cb_literal)
	format = ZFS_NICENUM_RAW;
	else
	format = ZFS_NICENUM_1024;

	if (strcmp(name, VDEV_TYPE_INDIRECT) == 0)
	return;

	if (scripted)
	(void) printf("\t%s", name);
	else if (strlen(name) + depth > cb->cb_namewidth)
	(void) printf("%*s%s", depth, "", name);
	else
	(void) printf("%s%s%s", depth, "", name,
	(int)(cb->cb_namewidth - strlen(name) - depth), "");

	/*
	* Print the properties for the individual vdevs. Some
	* properties are only applicable to toplevel vdevs. The
	* 'toplevel' boolean value is passed to the print_one_column()
	* to indicate that the value is valid.
	*/
	print_one_column(ZPOOL_PROP_SIZE, vs->vs_space, NULL, scripted,
	toplevel, format);
	print_one_column(ZPOOL_PROP_ALLOCATED, vs->vs_alloc, NULL,
	scripted, toplevel, format);
	print_one_column(ZPOOL_PROP_FREE, vs->vs_space - vs->vs_alloc,
	NULL, scripted, toplevel, format);
	print_one_column(ZPOOL_PROP_CHECKPOINT,
	vs->vs_checkpoint_space, NULL, scripted, toplevel, format);
	print_one_column(ZPOOL_PROP_EXPANDSZ, vs->vs_esize, NULL,
	scripted, B_TRUE, format);
	print_one_column(ZPOOL_PROP_FRAGMENTATION,
	vs->vs_fragmentation, NULL, scripted,
	(vs->vs_fragmentation != ZFS_FRAG_INVALID && toplevel),
	format);
	cap = (vs->vs_space == 0) ? 0 :
	(vs->vs_alloc * 10000 / vs->vs_space);
	print_one_column(ZPOOL_PROP_CAPACITY, cap, NULL,
	scripted, toplevel, format);
	print_one_column(ZPOOL_PROP_DEDUPRATIO, 0, NULL,
	scripted, toplevel, format);
	state = zpool_state_to_name(vs->vs_state, vs->vs_aux);
	if (isspare) {
	if (vs->vs_aux == VDEV_AUX_SPARED)
	state = "INUSE";
	else if (vs->vs_state == VDEV_STATE_HEALTHY)
	state = "AVAIL";
	}
	print_one_column(ZPOOL_PROP_HEALTH, 0, state, scripted,
	B_TRUE, format);
	(void) printf("\n");
	}

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
	&child, &children) != 0)
	return;

	/* list the normal vdevs first */
	for (c = 0; c < children; c++) {
	uint64_t ishole = B_FALSE;

	if (nvlist_lookup_uint64(child[c],
	ZPOOL_CONFIG_IS_HOLE, &ishole) == 0 && ishole)
	continue;

	if (nvlist_lookup_uint64(child[c],
	ZPOOL_CONFIG_IS_LOG, &islog) == 0 && islog)
	continue;

	if (nvlist_exists(child[c], ZPOOL_CONFIG_ALLOCATION_BIAS))
	continue;

	vname = zpool_vdev_name(g_zfs, zhp, child[c],
	cb->cb_name_flags);
	print_list_stats(zhp, vname, child[c], cb, depth + 2, B_FALSE);
	free(vname);
	}

	/* list the classes: 'logs', 'dedup', and 'special' */
	for (uint_t n = 0; n < 3; n++) {
	boolean_t printed = B_FALSE;

	for (c = 0; c < children; c++) {
	char *bias = NULL;
	char *type = NULL;

	if (nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
	&islog) == 0 && islog) {
	bias = VDEV_ALLOC_CLASS_LOGS;
	} else {
	(void) nvlist_lookup_string(child[c],
	ZPOOL_CONFIG_ALLOCATION_BIAS, &bias);
	(void) nvlist_lookup_string(child[c],
	ZPOOL_CONFIG_TYPE, &type);
	}
	if (bias == NULL \|\| strcmp(bias, class_name[n]) != 0)
	continue;
	if (!islog && strcmp(type, VDEV_TYPE_INDIRECT) == 0)
	continue;

	if (!printed) {
	/* LINTED E_SEC_PRINTF_VAR_FMT */
	(void) printf(dashes, cb->cb_namewidth,
	class_name[n]);
	printed = B_TRUE;
	}
	vname = zpool_vdev_name(g_zfs, zhp, child[c],
	cb->cb_name_flags);
	print_list_stats(zhp, vname, child[c], cb, depth + 2,
	B_FALSE);
	free(vname);
	}
	}

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
	&child, &children) == 0 && children > 0) {
	/* LINTED E_SEC_PRINTF_VAR_FMT */
	(void) printf(dashes, cb->cb_namewidth, "cache");
	for (c = 0; c < children; c++) {
	vname = zpool_vdev_name(g_zfs, zhp, child[c],
	cb->cb_name_flags);
	print_list_stats(zhp, vname, child[c], cb, depth + 2,
	B_FALSE);
	free(vname);
	}
	}

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES, &child,
	&children) == 0 && children > 0) {
	/* LINTED E_SEC_PRINTF_VAR_FMT */
	(void) printf(dashes, cb->cb_namewidth, "spare");
	for (c = 0; c < children; c++) {
	vname = zpool_vdev_name(g_zfs, zhp, child[c],
	cb->cb_name_flags);
	print_list_stats(zhp, vname, child[c], cb, depth + 2,
	B_TRUE);
	free(vname);
	}
	}
	}

	/*
	* Generic callback function to list a pool.
	*/
	static int
	list_callback(zpool_handle_t zhp, void data)
	{
	list_cbdata_t *cbp = data;

	print_pool(zhp, cbp);

	if (cbp->cb_verbose) {
	nvlist_t config, nvroot;

	config = zpool_get_config(zhp, NULL);
	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
	&nvroot) == 0);
	print_list_stats(zhp, NULL, nvroot, cbp, 0, B_FALSE);
	}

	return (0);
	}

	/*
	* Set the minimum pool/vdev name column width. The width must be at least 9,
	* but may be as large as needed.
	*/
	static int
	get_namewidth_list(zpool_handle_t zhp, void data)
	{
	list_cbdata_t *cb = data;
	int width;

	width = get_namewidth(zhp, cb->cb_namewidth, cb->cb_name_flags,
	cb->cb_verbose);

	if (width < 9)
	width = 9;

	cb->cb_namewidth = width;

	return (0);
	}

	/*
	* zpool list [-gHLpP] [-o prop[,prop]*] [-T d\|u] [pool] ... [interval [count]]
	*
	* -g Display guid for individual vdev name.
	* -H Scripted mode. Don't display headers, and separate properties
	* by a single tab.
	* -L Follow links when resolving vdev path name.
	* -o List of properties to display. Defaults to
	* "name,size,allocated,free,expandsize,fragmentation,capacity,"
	* "dedupratio,health,altroot"
	* -p Display values in parsable (exact) format.
	* -P Display full path for vdev name.
	* -T Display a timestamp in date(1) or Unix format
	*
	* List all pools in the system, whether or not they're healthy. Output space
	* statistics for each one, as well as health status summary.
	*/
	int
	zpool_do_list(int argc, char **argv)
	{
	int c;
	int ret = 0;
	list_cbdata_t cb = { 0 };
	static char default_props[] =
	"name,size,allocated,free,checkpoint,expandsize,fragmentation,"
	"capacity,dedupratio,health,altroot";
	char *props = default_props;
	float interval = 0;
	unsigned long count = 0;
	zpool_list_t *list;
	boolean_t first = B_TRUE;

	/* check options */
	while ((c = getopt(argc, argv, ":gHLo:pPT:v")) != -1) {
	switch (c) {
	case 'g':
	cb.cb_name_flags \|= VDEV_NAME_GUID;
	break;
	case 'H':
	cb.cb_scripted = B_TRUE;
	break;
	case 'L':
	cb.cb_name_flags \|= VDEV_NAME_FOLLOW_LINKS;
	break;
	case 'o':
	props = optarg;
	break;
	case 'P':
	cb.cb_name_flags \|= VDEV_NAME_PATH;
	break;
	case 'p':
	cb.cb_literal = B_TRUE;
	break;
	case 'T':
	get_timestamp_arg(*optarg);
	break;
	case 'v':
	cb.cb_verbose = B_TRUE;
	cb.cb_namewidth = 8; /* 8 until precalc is avail */
	break;
	case ':':
	(void) fprintf(stderr, gettext("missing argument for "
	"'%c' option\n"), optopt);
	usage(B_FALSE);
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	get_interval_count(&argc, argv, &interval, &count);

	if (zprop_get_list(g_zfs, props, &cb.cb_proplist, ZFS_TYPE_POOL) != 0)
	usage(B_FALSE);

	for (;;) {
	if ((list = pool_list_get(argc, argv, &cb.cb_proplist,
	cb.cb_literal, &ret)) == NULL)
	return (1);

	if (pool_list_count(list) == 0)
	break;

	cb.cb_namewidth = 0;
	(void) pool_list_iter(list, B_FALSE, get_namewidth_list, &cb);

	if (timestamp_fmt != NODATE)
	print_timestamp(timestamp_fmt);

	if (!cb.cb_scripted && (first \|\| cb.cb_verbose)) {
	print_header(&cb);
	first = B_FALSE;
	}
	ret = pool_list_iter(list, B_TRUE, list_callback, &cb);

	if (interval == 0)
	break;

	if (count != 0 && --count == 0)
	break;

	pool_list_free(list);
	(void) fsleep(interval);
	}

	if (argc == 0 && !cb.cb_scripted && pool_list_count(list) == 0) {
	(void) printf(gettext("no pools available\n"));
	ret = 0;
	}

	pool_list_free(list);
	zprop_free_list(cb.cb_proplist);
	return (ret);
	}

	static int
	zpool_do_attach_or_replace(int argc, char **argv, int replacing)
	{
	boolean_t force = B_FALSE;
	boolean_t rebuild = B_FALSE;
	boolean_t wait = B_FALSE;
	int c;
	nvlist_t *nvroot;
	char poolname, old_disk, *new_disk;
	zpool_handle_t *zhp;
	nvlist_t *props = NULL;
	char *propval;
	int ret;

	/* check options */
	while ((c = getopt(argc, argv, "fo:sw")) != -1) {
	switch (c) {
	case 'f':
	force = B_TRUE;
	break;
	case 'o':
	if ((propval = strchr(optarg, '=')) == NULL) {
	(void) fprintf(stderr, gettext("missing "
	"'=' for -o option\n"));
	usage(B_FALSE);
	}
	*propval = '\0';
	propval++;

	if ((strcmp(optarg, ZPOOL_CONFIG_ASHIFT) != 0) \|\|
	(add_prop_list(optarg, propval, &props, B_TRUE)))
	usage(B_FALSE);
	break;
	case 's':
	rebuild = B_TRUE;
	break;
	case 'w':
	wait = B_TRUE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* get pool name and check number of arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing pool name argument\n"));
	usage(B_FALSE);
	}

	poolname = argv[0];

	if (argc < 2) {
	(void) fprintf(stderr,
	gettext("missing <device> specification\n"));
	usage(B_FALSE);
	}

	old_disk = argv[1];

	if (argc < 3) {
	if (!replacing) {
	(void) fprintf(stderr,
	gettext("missing <new_device> specification\n"));
	usage(B_FALSE);
	}
	new_disk = old_disk;
	argc -= 1;
	argv += 1;
	} else {
	new_disk = argv[2];
	argc -= 2;
	argv += 2;
	}

	if (argc > 1) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	if ((zhp = zpool_open(g_zfs, poolname)) == NULL) {
	nvlist_free(props);
	return (1);
	}

	if (zpool_get_config(zhp, NULL) == NULL) {
	(void) fprintf(stderr, gettext("pool '%s' is unavailable\n"),
	poolname);
	zpool_close(zhp);
	nvlist_free(props);
	return (1);
	}

	/* unless manually specified use "ashift" pool property (if set) */
	if (!nvlist_exists(props, ZPOOL_CONFIG_ASHIFT)) {
	int intval;
	zprop_source_t src;
	char strval[ZPOOL_MAXPROPLEN];

	intval = zpool_get_prop_int(zhp, ZPOOL_PROP_ASHIFT, &src);
	if (src != ZPROP_SRC_DEFAULT) {
	(void) sprintf(strval, "%" PRId32, intval);
	verify(add_prop_list(ZPOOL_CONFIG_ASHIFT, strval,
	&props, B_TRUE) == 0);
	}
	}

	nvroot = make_root_vdev(zhp, props, force, B_FALSE, replacing, B_FALSE,
	argc, argv);
	if (nvroot == NULL) {
	zpool_close(zhp);
	nvlist_free(props);
	return (1);
	}

	ret = zpool_vdev_attach(zhp, old_disk, new_disk, nvroot, replacing,
	rebuild);

	if (ret == 0 && wait)
	ret = zpool_wait(zhp,
	replacing ? ZPOOL_WAIT_REPLACE : ZPOOL_WAIT_RESILVER);

	nvlist_free(props);
	nvlist_free(nvroot);
	zpool_close(zhp);

	return (ret);
	}

	/*
	* zpool replace [-fsw] [-o property=value] <pool> <device> <new_device>
	*
	* -f Force attach, even if <new_device> appears to be in use.
	* -s Use sequential instead of healing reconstruction for resilver.
	* -o Set property=value.
	* -w Wait for replacing to complete before returning
	*
	* Replace <device> with <new_device>.
	*/
	/* ARGSUSED */
	int
	zpool_do_replace(int argc, char **argv)
	{
	return (zpool_do_attach_or_replace(argc, argv, B_TRUE));
	}

	/*
	* zpool attach [-fsw] [-o property=value] <pool> <device> <new_device>
	*
	* -f Force attach, even if <new_device> appears to be in use.
	* -s Use sequential instead of healing reconstruction for resilver.
	* -o Set property=value.
	* -w Wait for resilvering to complete before returning
	*
	* Attach <new_device> to the mirror containing <device>. If <device> is not
	* part of a mirror, then <device> will be transformed into a mirror of
	* <device> and <new_device>. In either case, <new_device> will begin life
	* with a DTL of [0, now], and will immediately begin to resilver itself.
	*/
	int
	zpool_do_attach(int argc, char **argv)
	{
	return (zpool_do_attach_or_replace(argc, argv, B_FALSE));
	}

	/*
	* zpool detach [-f] <pool> <device>
	*
	* -f Force detach of <device>, even if DTLs argue against it
	* (not supported yet)
	*
	* Detach a device from a mirror. The operation will be refused if <device>
	* is the last device in the mirror, or if the DTLs indicate that this device
	* has the only valid copy of some data.
	*/
	/* ARGSUSED */
	int
	zpool_do_detach(int argc, char **argv)
	{
	int c;
	char poolname, path;
	zpool_handle_t *zhp;
	int ret;

	/* check options */
	while ((c = getopt(argc, argv, "")) != -1) {
	switch (c) {
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* get pool name and check number of arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing pool name argument\n"));
	usage(B_FALSE);
	}

	if (argc < 2) {
	(void) fprintf(stderr,
	gettext("missing <device> specification\n"));
	usage(B_FALSE);
	}

	poolname = argv[0];
	path = argv[1];

	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
	return (1);

	ret = zpool_vdev_detach(zhp, path);

	zpool_close(zhp);

	return (ret);
	}

	/*
	* zpool split [-gLnP] [-o prop=val] ...
	* [-o mntopt] ...
	* [-R altroot] <pool> <newpool> [<device> ...]
	*
	* -g Display guid for individual vdev name.
	* -L Follow links when resolving vdev path name.
	* -n Do not split the pool, but display the resulting layout if
	* it were to be split.
	* -o Set property=value, or set mount options.
	* -P Display full path for vdev name.
	* -R Mount the split-off pool under an alternate root.
	* -l Load encryption keys while importing.
	*
	* Splits the named pool and gives it the new pool name. Devices to be split
	* off may be listed, provided that no more than one device is specified
	* per top-level vdev mirror. The newly split pool is left in an exported
	* state unless -R is specified.
	*
	* Restrictions: the top-level of the pool pool must only be made up of
	* mirrors; all devices in the pool must be healthy; no device may be
	* undergoing a resilvering operation.
	*/
	int
	zpool_do_split(int argc, char **argv)
	{
	char srcpool, newpool, *propval;
	char *mntopts = NULL;
	splitflags_t flags;
	int c, ret = 0;
	boolean_t loadkeys = B_FALSE;
	zpool_handle_t *zhp;
	nvlist_t config, props = NULL;

	flags.dryrun = B_FALSE;
	flags.import = B_FALSE;
	flags.name_flags = 0;

	/* check options */
	while ((c = getopt(argc, argv, ":gLR:lno:P")) != -1) {
	switch (c) {
	case 'g':
	flags.name_flags \|= VDEV_NAME_GUID;
	break;
	case 'L':
	flags.name_flags \|= VDEV_NAME_FOLLOW_LINKS;
	break;
	case 'R':
	flags.import = B_TRUE;
	if (add_prop_list(
	zpool_prop_to_name(ZPOOL_PROP_ALTROOT), optarg,
	&props, B_TRUE) != 0) {
	nvlist_free(props);
	usage(B_FALSE);
	}
	break;
	case 'l':
	loadkeys = B_TRUE;
	break;
	case 'n':
	flags.dryrun = B_TRUE;
	break;
	case 'o':
	if ((propval = strchr(optarg, '=')) != NULL) {
	*propval = '\0';
	propval++;
	if (add_prop_list(optarg, propval,
	&props, B_TRUE) != 0) {
	nvlist_free(props);
	usage(B_FALSE);
	}
	} else {
	mntopts = optarg;
	}
	break;
	case 'P':
	flags.name_flags \|= VDEV_NAME_PATH;
	break;
	case ':':
	(void) fprintf(stderr, gettext("missing argument for "
	"'%c' option\n"), optopt);
	usage(B_FALSE);
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	break;
	}
	}

	if (!flags.import && mntopts != NULL) {
	(void) fprintf(stderr, gettext("setting mntopts is only "
	"valid when importing the pool\n"));
	usage(B_FALSE);
	}

	if (!flags.import && loadkeys) {
	(void) fprintf(stderr, gettext("loading keys is only "
	"valid when importing the pool\n"));
	usage(B_FALSE);
	}

	argc -= optind;
	argv += optind;

	if (argc < 1) {
	(void) fprintf(stderr, gettext("Missing pool name\n"));
	usage(B_FALSE);
	}
	if (argc < 2) {
	(void) fprintf(stderr, gettext("Missing new pool name\n"));
	usage(B_FALSE);
	}

	srcpool = argv[0];
	newpool = argv[1];

	argc -= 2;
	argv += 2;

	if ((zhp = zpool_open(g_zfs, srcpool)) == NULL) {
	nvlist_free(props);
	return (1);
	}

	config = split_mirror_vdev(zhp, newpool, props, flags, argc, argv);
	if (config == NULL) {
	ret = 1;
	} else {
	if (flags.dryrun) {
	(void) printf(gettext("would create '%s' with the "
	"following layout:\n\n"), newpool);
	print_vdev_tree(NULL, newpool, config, 0, "",
	flags.name_flags);
	print_vdev_tree(NULL, "dedup", config, 0,
	VDEV_ALLOC_BIAS_DEDUP, 0);
	print_vdev_tree(NULL, "special", config, 0,
	VDEV_ALLOC_BIAS_SPECIAL, 0);
	}
	}

	zpool_close(zhp);

	if (ret != 0 \|\| flags.dryrun \|\| !flags.import) {
	nvlist_free(config);
	nvlist_free(props);
	return (ret);
	}

	/*
	* The split was successful. Now we need to open the new
	* pool and import it.
	*/
	if ((zhp = zpool_open_canfail(g_zfs, newpool)) == NULL) {
	nvlist_free(config);
	nvlist_free(props);
	return (1);
	}

	if (loadkeys) {
	ret = zfs_crypto_attempt_load_keys(g_zfs, newpool);
	if (ret != 0)
	ret = 1;
	}

	if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
	zpool_enable_datasets(zhp, mntopts, 0) != 0) {
	ret = 1;
	(void) fprintf(stderr, gettext("Split was successful, but "
	"the datasets could not all be mounted\n"));
	(void) fprintf(stderr, gettext("Try doing '%s' with a "
	"different altroot\n"), "zpool import");
	}
	zpool_close(zhp);
	nvlist_free(config);
	nvlist_free(props);

	return (ret);
	}



	/*
	* zpool online <pool> <device> ...
	*/
	int
	zpool_do_online(int argc, char **argv)
	{
	int c, i;
	char *poolname;
	zpool_handle_t *zhp;
	int ret = 0;
	vdev_state_t newstate;
	int flags = 0;

	/* check options */
	while ((c = getopt(argc, argv, "e")) != -1) {
	switch (c) {
	case 'e':
	flags \|= ZFS_ONLINE_EXPAND;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* get pool name and check number of arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing pool name\n"));
	usage(B_FALSE);
	}
	if (argc < 2) {
	(void) fprintf(stderr, gettext("missing device name\n"));
	usage(B_FALSE);
	}

	poolname = argv[0];

	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
	return (1);

	for (i = 1; i < argc; i++) {
	if (zpool_vdev_online(zhp, argv[i], flags, &newstate) == 0) {
	if (newstate != VDEV_STATE_HEALTHY) {
	(void) printf(gettext("warning: device '%s' "
	"onlined, but remains in faulted state\n"),
	argv[i]);
	if (newstate == VDEV_STATE_FAULTED)
	(void) printf(gettext("use 'zpool "
	"clear' to restore a faulted "
	"device\n"));
	else
	(void) printf(gettext("use 'zpool "
	"replace' to replace devices "
	"that are no longer present\n"));
	}
	} else {
	ret = 1;
	}
	}

	zpool_close(zhp);

	return (ret);
	}

	/*
	* zpool offline [-ft] <pool> <device> ...
	*
	* -f Force the device into a faulted state.
	*
	* -t Only take the device off-line temporarily. The offline/faulted
	* state will not be persistent across reboots.
	*/
	/* ARGSUSED */
	int
	zpool_do_offline(int argc, char **argv)
	{
	int c, i;
	char *poolname;
	zpool_handle_t *zhp;
	int ret = 0;
	boolean_t istmp = B_FALSE;
	boolean_t fault = B_FALSE;

	/* check options */
	while ((c = getopt(argc, argv, "ft")) != -1) {
	switch (c) {
	case 'f':
	fault = B_TRUE;
	break;
	case 't':
	istmp = B_TRUE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* get pool name and check number of arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing pool name\n"));
	usage(B_FALSE);
	}
	if (argc < 2) {
	(void) fprintf(stderr, gettext("missing device name\n"));
	usage(B_FALSE);
	}

	poolname = argv[0];

	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
	return (1);

	for (i = 1; i < argc; i++) {
	if (fault) {
	uint64_t guid = zpool_vdev_path_to_guid(zhp, argv[i]);
	vdev_aux_t aux;
	if (istmp == B_FALSE) {
	/* Force the fault to persist across imports */
	aux = VDEV_AUX_EXTERNAL_PERSIST;
	} else {
	aux = VDEV_AUX_EXTERNAL;
	}

	if (guid == 0 \|\| zpool_vdev_fault(zhp, guid, aux) != 0)
	ret = 1;
	} else {
	if (zpool_vdev_offline(zhp, argv[i], istmp) != 0)
	ret = 1;
	}
	}

	zpool_close(zhp);

	return (ret);
	}

	/*
	* zpool clear <pool> [device]
	*
	* Clear all errors associated with a pool or a particular device.
	*/
	int
	zpool_do_clear(int argc, char **argv)
	{
	int c;
	int ret = 0;
	boolean_t dryrun = B_FALSE;
	boolean_t do_rewind = B_FALSE;
	boolean_t xtreme_rewind = B_FALSE;
	uint32_t rewind_policy = ZPOOL_NO_REWIND;
	nvlist_t *policy = NULL;
	zpool_handle_t *zhp;
	char pool, device;

	/* check options */
	while ((c = getopt(argc, argv, "FnX")) != -1) {
	switch (c) {
	case 'F':
	do_rewind = B_TRUE;
	break;
	case 'n':
	dryrun = B_TRUE;
	break;
	case 'X':
	xtreme_rewind = B_TRUE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing pool name\n"));
	usage(B_FALSE);
	}

	if (argc > 2) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	if ((dryrun \|\| xtreme_rewind) && !do_rewind) {
	(void) fprintf(stderr,
	gettext("-n or -X only meaningful with -F\n"));
	usage(B_FALSE);
	}
	if (dryrun)
	rewind_policy = ZPOOL_TRY_REWIND;
	else if (do_rewind)
	rewind_policy = ZPOOL_DO_REWIND;
	if (xtreme_rewind)
	rewind_policy \|= ZPOOL_EXTREME_REWIND;

	/* In future, further rewind policy choices can be passed along here */
	if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 \|\|
	nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY,
	rewind_policy) != 0) {
	return (1);
	}

	pool = argv[0];
	device = argc == 2 ? argv[1] : NULL;

	if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL) {
	nvlist_free(policy);
	return (1);
	}

	if (zpool_clear(zhp, device, policy) != 0)
	ret = 1;

	zpool_close(zhp);

	nvlist_free(policy);

	return (ret);
	}

	/*
	* zpool reguid <pool>
	*/
	int
	zpool_do_reguid(int argc, char **argv)
	{
	int c;
	char *poolname;
	zpool_handle_t *zhp;
	int ret = 0;

	/* check options */
	while ((c = getopt(argc, argv, "")) != -1) {
	switch (c) {
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* get pool name and check number of arguments */
	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing pool name\n"));
	usage(B_FALSE);
	}

	if (argc > 1) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	poolname = argv[0];
	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
	return (1);

	ret = zpool_reguid(zhp);

	zpool_close(zhp);
	return (ret);
	}


	/*
	* zpool reopen <pool>
	*
	* Reopen the pool so that the kernel can update the sizes of all vdevs.
	*/
	int
	zpool_do_reopen(int argc, char **argv)
	{
	int c;
	int ret = 0;
	boolean_t scrub_restart = B_TRUE;

	/* check options */
	while ((c = getopt(argc, argv, "n")) != -1) {
	switch (c) {
	case 'n':
	scrub_restart = B_FALSE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	/* if argc == 0 we will execute zpool_reopen_one on all pools */
	ret = for_each_pool(argc, argv, B_TRUE, NULL, B_FALSE, zpool_reopen_one,
	&scrub_restart);

	return (ret);
	}

	typedef struct scrub_cbdata {
	int cb_type;
	pool_scrub_cmd_t cb_scrub_cmd;
	} scrub_cbdata_t;

	static boolean_t
	zpool_has_checkpoint(zpool_handle_t *zhp)
	{
	nvlist_t config, nvroot;

	config = zpool_get_config(zhp, NULL);

	if (config != NULL) {
	pool_checkpoint_stat_t *pcs = NULL;
	uint_t c;

	nvroot = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE);
	(void) nvlist_lookup_uint64_array(nvroot,
	ZPOOL_CONFIG_CHECKPOINT_STATS, (uint64_t **)&pcs, &c);

	if (pcs == NULL \|\| pcs->pcs_state == CS_NONE)
	return (B_FALSE);

	assert(pcs->pcs_state == CS_CHECKPOINT_EXISTS \|\|
	pcs->pcs_state == CS_CHECKPOINT_DISCARDING);
	return (B_TRUE);
	}

	return (B_FALSE);
	}

	static int
	scrub_callback(zpool_handle_t zhp, void data)
	{
	scrub_cbdata_t *cb = data;
	int err;

	/*
	* Ignore faulted pools.
	*/
	if (zpool_get_state(zhp) == POOL_STATE_UNAVAIL) {
	(void) fprintf(stderr, gettext("cannot scan '%s': pool is "
	"currently unavailable\n"), zpool_get_name(zhp));
	return (1);
	}

	err = zpool_scan(zhp, cb->cb_type, cb->cb_scrub_cmd);

	if (err == 0 && zpool_has_checkpoint(zhp) &&
	cb->cb_type == POOL_SCAN_SCRUB) {
	(void) printf(gettext("warning: will not scrub state that "
	"belongs to the checkpoint of pool '%s'\n"),
	zpool_get_name(zhp));
	}

	return (err != 0);
	}

	static int
	wait_callback(zpool_handle_t zhp, void data)
	{
	zpool_wait_activity_t *act = data;
	return (zpool_wait(zhp, *act));
	}

	/*
	* zpool scrub [-s \| -p] [-w] <pool> ...
	*
	* -s Stop. Stops any in-progress scrub.
	* -p Pause. Pause in-progress scrub.
	* -w Wait. Blocks until scrub has completed.
	*/
	int
	zpool_do_scrub(int argc, char **argv)
	{
	int c;
	scrub_cbdata_t cb;
	boolean_t wait = B_FALSE;
	int error;

	cb.cb_type = POOL_SCAN_SCRUB;
	cb.cb_scrub_cmd = POOL_SCRUB_NORMAL;

	/* check options */
	while ((c = getopt(argc, argv, "spw")) != -1) {
	switch (c) {
	case 's':
	cb.cb_type = POOL_SCAN_NONE;
	break;
	case 'p':
	cb.cb_scrub_cmd = POOL_SCRUB_PAUSE;
	break;
	case 'w':
	wait = B_TRUE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	if (cb.cb_type == POOL_SCAN_NONE &&
	cb.cb_scrub_cmd == POOL_SCRUB_PAUSE) {
	(void) fprintf(stderr, gettext("invalid option combination: "
	"-s and -p are mutually exclusive\n"));
	usage(B_FALSE);
	}

	if (wait && (cb.cb_type == POOL_SCAN_NONE \|\|
	cb.cb_scrub_cmd == POOL_SCRUB_PAUSE)) {
	(void) fprintf(stderr, gettext("invalid option combination: "
	"-w cannot be used with -p or -s\n"));
	usage(B_FALSE);
	}

	argc -= optind;
	argv += optind;

	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing pool name argument\n"));
	usage(B_FALSE);
	}

	error = for_each_pool(argc, argv, B_TRUE, NULL, B_FALSE,
	scrub_callback, &cb);

	if (wait && !error) {
	zpool_wait_activity_t act = ZPOOL_WAIT_SCRUB;
	error = for_each_pool(argc, argv, B_TRUE, NULL, B_FALSE,
	wait_callback, &act);
	}

	return (error);
	}

	/*
	* zpool resilver <pool> ...
	*
	* Restarts any in-progress resilver
	*/
	int
	zpool_do_resilver(int argc, char **argv)
	{
	int c;
	scrub_cbdata_t cb;

	cb.cb_type = POOL_SCAN_RESILVER;
	cb.cb_scrub_cmd = POOL_SCRUB_NORMAL;

	/* check options */
	while ((c = getopt(argc, argv, "")) != -1) {
	switch (c) {
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing pool name argument\n"));
	usage(B_FALSE);
	}

	return (for_each_pool(argc, argv, B_TRUE, NULL, B_FALSE,
	scrub_callback, &cb));
	}

	/*
	* zpool trim [-d] [-r <rate>] [-c \| -s] <pool> [<device> ...]
	*
	* -c Cancel. Ends any in-progress trim.
	* -d Secure trim. Requires kernel and device support.
	* -r <rate> Sets the TRIM rate in bytes (per second). Supports
	* adding a multiplier suffix such as 'k' or 'm'.
	* -s Suspend. TRIM can then be restarted with no flags.
	* -w Wait. Blocks until trimming has completed.
	*/
	int
	zpool_do_trim(int argc, char **argv)
	{
	struct option long_options[] = {
	{"cancel", no_argument, NULL, 'c'},
	{"secure", no_argument, NULL, 'd'},
	{"rate", required_argument, NULL, 'r'},
	{"suspend", no_argument, NULL, 's'},
	{"wait", no_argument, NULL, 'w'},
	{0, 0, 0, 0}
	};

	pool_trim_func_t cmd_type = POOL_TRIM_START;
	uint64_t rate = 0;
	boolean_t secure = B_FALSE;
	boolean_t wait = B_FALSE;

	int c;
	while ((c = getopt_long(argc, argv, "cdr:sw", long_options, NULL))
	!= -1) {
	switch (c) {
	case 'c':
	if (cmd_type != POOL_TRIM_START &&
	cmd_type != POOL_TRIM_CANCEL) {
	(void) fprintf(stderr, gettext("-c cannot be "
	"combined with other options\n"));
	usage(B_FALSE);
	}
	cmd_type = POOL_TRIM_CANCEL;
	break;
	case 'd':
	if (cmd_type != POOL_TRIM_START) {
	(void) fprintf(stderr, gettext("-d cannot be "
	"combined with the -c or -s options\n"));
	usage(B_FALSE);
	}
	secure = B_TRUE;
	break;
	case 'r':
	if (cmd_type != POOL_TRIM_START) {
	(void) fprintf(stderr, gettext("-r cannot be "
	"combined with the -c or -s options\n"));
	usage(B_FALSE);
	}
	if (zfs_nicestrtonum(NULL, optarg, &rate) == -1) {
	(void) fprintf(stderr,
	gettext("invalid value for rate\n"));
	usage(B_FALSE);
	}
	break;
	case 's':
	if (cmd_type != POOL_TRIM_START &&
	cmd_type != POOL_TRIM_SUSPEND) {
	(void) fprintf(stderr, gettext("-s cannot be "
	"combined with other options\n"));
	usage(B_FALSE);
	}
	cmd_type = POOL_TRIM_SUSPEND;
	break;
	case 'w':
	wait = B_TRUE;
	break;
	case '?':
	if (optopt != 0) {
	(void) fprintf(stderr,
	gettext("invalid option '%c'\n"), optopt);
	} else {
	(void) fprintf(stderr,
	gettext("invalid option '%s'\n"),
	argv[optind - 1]);
	}
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing pool name argument\n"));
	usage(B_FALSE);
	return (-1);
	}

	if (wait && (cmd_type != POOL_TRIM_START)) {
	(void) fprintf(stderr, gettext("-w cannot be used with -c or "
	"-s\n"));
	usage(B_FALSE);
	}

	char *poolname = argv[0];
	zpool_handle_t *zhp = zpool_open(g_zfs, poolname);
	if (zhp == NULL)
	return (-1);

	trimflags_t trim_flags = {
	.secure = secure,
	.rate = rate,
	.wait = wait,
	};

	nvlist_t *vdevs = fnvlist_alloc();
	if (argc == 1) {
	/* no individual leaf vdevs specified, so add them all */
	nvlist_t *config = zpool_get_config(zhp, NULL);
	nvlist_t *nvroot = fnvlist_lookup_nvlist(config,
	ZPOOL_CONFIG_VDEV_TREE);
	zpool_collect_leaves(zhp, nvroot, vdevs);
	trim_flags.fullpool = B_TRUE;
	} else {
	trim_flags.fullpool = B_FALSE;
	for (int i = 1; i < argc; i++) {
	fnvlist_add_boolean(vdevs, argv[i]);
	}
	}

	int error = zpool_trim(zhp, cmd_type, vdevs, &trim_flags);

	fnvlist_free(vdevs);
	zpool_close(zhp);

	return (error);
	}

	/*
	* Converts a total number of seconds to a human readable string broken
	* down in to days/hours/minutes/seconds.
	*/
	static void
	secs_to_dhms(uint64_t total, char *buf)
	{
	uint64_t days = total / 60 / 60 / 24;
	uint64_t hours = (total / 60 / 60) % 24;
	uint64_t mins = (total / 60) % 60;
	uint64_t secs = (total % 60);

	if (days > 0) {
	(void) sprintf(buf, "%llu days %02llu:%02llu:%02llu",
	(u_longlong_t)days, (u_longlong_t)hours,
	(u_longlong_t)mins, (u_longlong_t)secs);
	} else {
	(void) sprintf(buf, "%02llu:%02llu:%02llu",
	(u_longlong_t)hours, (u_longlong_t)mins,
	(u_longlong_t)secs);
	}
	}

	/*
	* Print out detailed scrub status.
	*/
	static void
	print_scan_scrub_resilver_status(pool_scan_stat_t *ps)
	{
	time_t start, end, pause;
	uint64_t pass_scanned, scanned, pass_issued, issued, total;
	uint64_t elapsed, scan_rate, issue_rate;
	double fraction_done;
	char processed_buf[7], scanned_buf[7], issued_buf[7], total_buf[7];
	char srate_buf[7], irate_buf[7], time_buf[32];

	printf(" ");
	printf_color(ANSI_BOLD, gettext("scan:"));
	printf(" ");

	/* If there's never been a scan, there's not much to say. */
	if (ps == NULL \|\| ps->pss_func == POOL_SCAN_NONE \|\|
	ps->pss_func >= POOL_SCAN_FUNCS) {
	(void) printf(gettext("none requested\n"));
	return;
	}

	start = ps->pss_start_time;
	end = ps->pss_end_time;
	pause = ps->pss_pass_scrub_pause;

	zfs_nicebytes(ps->pss_processed, processed_buf, sizeof (processed_buf));

	assert(ps->pss_func == POOL_SCAN_SCRUB \|\|
	ps->pss_func == POOL_SCAN_RESILVER);

	/* Scan is finished or canceled. */
	if (ps->pss_state == DSS_FINISHED) {
	secs_to_dhms(end - start, time_buf);

	if (ps->pss_func == POOL_SCAN_SCRUB) {
	(void) printf(gettext("scrub repaired %s "
	"in %s with %llu errors on %s"), processed_buf,
	time_buf, (u_longlong_t)ps->pss_errors,
	ctime(&end));
	} else if (ps->pss_func == POOL_SCAN_RESILVER) {
	(void) printf(gettext("resilvered %s "
	"in %s with %llu errors on %s"), processed_buf,
	time_buf, (u_longlong_t)ps->pss_errors,
	ctime(&end));
	}
	return;
	} else if (ps->pss_state == DSS_CANCELED) {
	if (ps->pss_func == POOL_SCAN_SCRUB) {
	(void) printf(gettext("scrub canceled on %s"),
	ctime(&end));
	} else if (ps->pss_func == POOL_SCAN_RESILVER) {
	(void) printf(gettext("resilver canceled on %s"),
	ctime(&end));
	}
	return;
	}

	assert(ps->pss_state == DSS_SCANNING);

	/* Scan is in progress. Resilvers can't be paused. */
	if (ps->pss_func == POOL_SCAN_SCRUB) {
	if (pause == 0) {
	(void) printf(gettext("scrub in progress since %s"),
	ctime(&start));
	} else {
	(void) printf(gettext("scrub paused since %s"),
	ctime(&pause));
	(void) printf(gettext("\tscrub started on %s"),
	ctime(&start));
	}
	} else if (ps->pss_func == POOL_SCAN_RESILVER) {
	(void) printf(gettext("resilver in progress since %s"),
	ctime(&start));
	}

	scanned = ps->pss_examined;
	pass_scanned = ps->pss_pass_exam;
	issued = ps->pss_issued;
	pass_issued = ps->pss_pass_issued;
	total = ps->pss_to_examine;

	/* we are only done with a block once we have issued the IO for it */
	fraction_done = (double)issued / total;

	/* elapsed time for this pass, rounding up to 1 if it's 0 */
	elapsed = time(NULL) - ps->pss_pass_start;
	elapsed -= ps->pss_pass_scrub_spent_paused;
	elapsed = (elapsed != 0) ? elapsed : 1;

	scan_rate = pass_scanned / elapsed;
	issue_rate = pass_issued / elapsed;
	uint64_t total_secs_left = (issue_rate != 0 && total >= issued) ?
	((total - issued) / issue_rate) : UINT64_MAX;
	secs_to_dhms(total_secs_left, time_buf);

	/* format all of the numbers we will be reporting */
	zfs_nicebytes(scanned, scanned_buf, sizeof (scanned_buf));
	zfs_nicebytes(issued, issued_buf, sizeof (issued_buf));
	zfs_nicebytes(total, total_buf, sizeof (total_buf));
	zfs_nicebytes(scan_rate, srate_buf, sizeof (srate_buf));
	zfs_nicebytes(issue_rate, irate_buf, sizeof (irate_buf));

	/* do not print estimated time if we have a paused scrub */
	if (pause == 0) {
	(void) printf(gettext("\t%s scanned at %s/s, "
	"%s issued at %s/s, %s total\n"),
	scanned_buf, srate_buf, issued_buf, irate_buf, total_buf);
	} else {
	(void) printf(gettext("\t%s scanned, %s issued, %s total\n"),
	scanned_buf, issued_buf, total_buf);
	}

	if (ps->pss_func == POOL_SCAN_RESILVER) {
	(void) printf(gettext("\t%s resilvered, %.2f%% done"),
	processed_buf, 100 * fraction_done);
	} else if (ps->pss_func == POOL_SCAN_SCRUB) {
	(void) printf(gettext("\t%s repaired, %.2f%% done"),
	processed_buf, 100 * fraction_done);
	}

	if (pause == 0) {
	if (total_secs_left != UINT64_MAX &&
	issue_rate >= 10 * 1024 * 1024) {
	(void) printf(gettext(", %s to go\n"), time_buf);
	} else {
	(void) printf(gettext(", no estimated "
	"completion time\n"));
	}
	} else {
	(void) printf(gettext("\n"));
	}
	}

	static void
	print_rebuild_status_impl(vdev_rebuild_stat_t vrs, char vdev_name)
	{
	if (vrs == NULL \|\| vrs->vrs_state == VDEV_REBUILD_NONE)
	return;

	printf(" ");
	printf_color(ANSI_BOLD, gettext("scan:"));
	printf(" ");

	uint64_t bytes_scanned = vrs->vrs_bytes_scanned;
	uint64_t bytes_issued = vrs->vrs_bytes_issued;
	uint64_t bytes_rebuilt = vrs->vrs_bytes_rebuilt;
	uint64_t bytes_est = vrs->vrs_bytes_est;
	uint64_t scan_rate = (vrs->vrs_pass_bytes_scanned /
	(vrs->vrs_pass_time_ms + 1)) * 1000;
	uint64_t issue_rate = (vrs->vrs_pass_bytes_issued /
	(vrs->vrs_pass_time_ms + 1)) * 1000;
	double scan_pct = MIN((double)bytes_scanned * 100 /
	(bytes_est + 1), 100);

	/* Format all of the numbers we will be reporting */
	char bytes_scanned_buf[7], bytes_issued_buf[7];
	char bytes_rebuilt_buf[7], bytes_est_buf[7];
	char scan_rate_buf[7], issue_rate_buf[7], time_buf[32];
	zfs_nicebytes(bytes_scanned, bytes_scanned_buf,
	sizeof (bytes_scanned_buf));
	zfs_nicebytes(bytes_issued, bytes_issued_buf,
	sizeof (bytes_issued_buf));
	zfs_nicebytes(bytes_rebuilt, bytes_rebuilt_buf,
	sizeof (bytes_rebuilt_buf));
	zfs_nicebytes(bytes_est, bytes_est_buf, sizeof (bytes_est_buf));
	zfs_nicebytes(scan_rate, scan_rate_buf, sizeof (scan_rate_buf));
	zfs_nicebytes(issue_rate, issue_rate_buf, sizeof (issue_rate_buf));

	time_t start = vrs->vrs_start_time;
	time_t end = vrs->vrs_end_time;

	/* Rebuild is finished or canceled. */
	if (vrs->vrs_state == VDEV_REBUILD_COMPLETE) {
	secs_to_dhms(vrs->vrs_scan_time_ms / 1000, time_buf);
	(void) printf(gettext("resilvered (%s) %s in %s "
	"with %llu errors on %s"), vdev_name, bytes_rebuilt_buf,
	time_buf, (u_longlong_t)vrs->vrs_errors, ctime(&end));
	return;
	} else if (vrs->vrs_state == VDEV_REBUILD_CANCELED) {
	(void) printf(gettext("resilver (%s) canceled on %s"),
	vdev_name, ctime(&end));
	return;
	} else if (vrs->vrs_state == VDEV_REBUILD_ACTIVE) {
	(void) printf(gettext("resilver (%s) in progress since %s"),
	vdev_name, ctime(&start));
	}

	assert(vrs->vrs_state == VDEV_REBUILD_ACTIVE);

	secs_to_dhms(MAX((int64_t)bytes_est - (int64_t)bytes_scanned, 0) /
	MAX(scan_rate, 1), time_buf);

	(void) printf(gettext("\t%s scanned at %s/s, %s issued %s/s, "
	"%s total\n"), bytes_scanned_buf, scan_rate_buf,
	bytes_issued_buf, issue_rate_buf, bytes_est_buf);
	(void) printf(gettext("\t%s resilvered, %.2f%% done"),
	bytes_rebuilt_buf, scan_pct);

	if (vrs->vrs_state == VDEV_REBUILD_ACTIVE) {
	if (scan_rate >= 10 * 1024 * 1024) {
	(void) printf(gettext(", %s to go\n"), time_buf);
	} else {
	(void) printf(gettext(", no estimated "
	"completion time\n"));
	}
	} else {
	(void) printf(gettext("\n"));
	}
	}

	/*
	* Print rebuild status for top-level vdevs.
	*/
	static void
	print_rebuild_status(zpool_handle_t zhp, nvlist_t nvroot)
	{
	nvlist_t **child;
	uint_t children;

	if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
	&child, &children) != 0)
	children = 0;

	for (uint_t c = 0; c < children; c++) {
	vdev_rebuild_stat_t *vrs;
	uint_t i;

	if (nvlist_lookup_uint64_array(child[c],
	ZPOOL_CONFIG_REBUILD_STATS, (uint64_t **)&vrs, &i) == 0) {
	char *name = zpool_vdev_name(g_zfs, zhp,
	child[c], VDEV_NAME_TYPE_ID);
	print_rebuild_status_impl(vrs, name);
	free(name);
	}
	}
	}

	/*
	* As we don't scrub checkpointed blocks, we want to warn the user that we
	* skipped scanning some blocks if a checkpoint exists or existed at any
	* time during the scan. If a sequential instead of healing reconstruction
	* was performed then the blocks were reconstructed. However, their checksums
	* have not been verified so we still print the warning.
	*/
	static void
	print_checkpoint_scan_warning(pool_scan_stat_t ps, pool_checkpoint_stat_t pcs)
	{
	if (ps == NULL \|\| pcs == NULL)
	return;

	if (pcs->pcs_state == CS_NONE \|\|
	pcs->pcs_state == CS_CHECKPOINT_DISCARDING)
	return;

	assert(pcs->pcs_state == CS_CHECKPOINT_EXISTS);

	if (ps->pss_state == DSS_NONE)
	return;

	if ((ps->pss_state == DSS_FINISHED \|\| ps->pss_state == DSS_CANCELED) &&
	ps->pss_end_time < pcs->pcs_start_time)
	return;

	if (ps->pss_state == DSS_FINISHED \|\| ps->pss_state == DSS_CANCELED) {
	(void) printf(gettext(" scan warning: skipped blocks "
	"that are only referenced by the checkpoint.\n"));
	} else {
	assert(ps->pss_state == DSS_SCANNING);
	(void) printf(gettext(" scan warning: skipping blocks "
	"that are only referenced by the checkpoint.\n"));
	}
	}

	/*
	* Returns B_TRUE if there is an active rebuild in progress. Otherwise,
	* B_FALSE is returned and 'rebuild_end_time' is set to the end time for
	* the last completed (or cancelled) rebuild.
	*/
	static boolean_t
	check_rebuilding(nvlist_t nvroot, uint64_t rebuild_end_time)
	{
	nvlist_t **child;
	uint_t children;
	boolean_t rebuilding = B_FALSE;
	uint64_t end_time = 0;

	if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
	&child, &children) != 0)
	children = 0;

	for (uint_t c = 0; c < children; c++) {
	vdev_rebuild_stat_t *vrs;
	uint_t i;

	if (nvlist_lookup_uint64_array(child[c],
	ZPOOL_CONFIG_REBUILD_STATS, (uint64_t **)&vrs, &i) == 0) {

	if (vrs->vrs_end_time > end_time)
	end_time = vrs->vrs_end_time;

	if (vrs->vrs_state == VDEV_REBUILD_ACTIVE) {
	rebuilding = B_TRUE;
	end_time = 0;
	break;
	}
	}
	}

	if (rebuild_end_time != NULL)
	*rebuild_end_time = end_time;

	return (rebuilding);
	}

	/*
	* Print the scan status.
	*/
	static void
	print_scan_status(zpool_handle_t zhp, nvlist_t nvroot)
	{
	uint64_t rebuild_end_time = 0, resilver_end_time = 0;
	boolean_t have_resilver = B_FALSE, have_scrub = B_FALSE;
	boolean_t active_resilver = B_FALSE;
	pool_checkpoint_stat_t *pcs = NULL;
	pool_scan_stat_t *ps = NULL;
	uint_t c;

	if (nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_SCAN_STATS,
	(uint64_t **)&ps, &c) == 0) {
	if (ps->pss_func == POOL_SCAN_RESILVER) {
	resilver_end_time = ps->pss_end_time;
	active_resilver = (ps->pss_state == DSS_SCANNING);
	}

	have_resilver = (ps->pss_func == POOL_SCAN_RESILVER);
	have_scrub = (ps->pss_func == POOL_SCAN_SCRUB);
	}

	boolean_t active_rebuild = check_rebuilding(nvroot, &rebuild_end_time);
	boolean_t have_rebuild = (active_rebuild \|\| (rebuild_end_time > 0));

	/* Always print the scrub status when available. */
	if (have_scrub)
	print_scan_scrub_resilver_status(ps);

	/*
	* When there is an active resilver or rebuild print its status.
	* Otherwise print the status of the last resilver or rebuild.
	*/
	if (active_resilver \|\| (!active_rebuild && have_resilver &&
	resilver_end_time && resilver_end_time > rebuild_end_time)) {
	print_scan_scrub_resilver_status(ps);
	} else if (active_rebuild \|\| (!active_resilver && have_rebuild &&
	rebuild_end_time && rebuild_end_time > resilver_end_time)) {
	print_rebuild_status(zhp, nvroot);
	}

	(void) nvlist_lookup_uint64_array(nvroot,
	ZPOOL_CONFIG_CHECKPOINT_STATS, (uint64_t **)&pcs, &c);
	print_checkpoint_scan_warning(ps, pcs);
	}

	/*
	* Print out detailed removal status.
	*/
	static void
	print_removal_status(zpool_handle_t zhp, pool_removal_stat_t prs)
	{
	char copied_buf[7], examined_buf[7], total_buf[7], rate_buf[7];
	time_t start, end;
	nvlist_t config, nvroot;
	nvlist_t **child;
	uint_t children;
	char *vdev_name;

	if (prs == NULL \|\| prs->prs_state == DSS_NONE)
	return;

	/*
	* Determine name of vdev.
	*/
	config = zpool_get_config(zhp, NULL);
	nvroot = fnvlist_lookup_nvlist(config,
	ZPOOL_CONFIG_VDEV_TREE);
	verify(nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
	&child, &children) == 0);
	assert(prs->prs_removing_vdev < children);
	vdev_name = zpool_vdev_name(g_zfs, zhp,
	child[prs->prs_removing_vdev], B_TRUE);

	printf_color(ANSI_BOLD, gettext("remove: "));

	start = prs->prs_start_time;
	end = prs->prs_end_time;
	zfs_nicenum(prs->prs_copied, copied_buf, sizeof (copied_buf));

	/*
	* Removal is finished or canceled.
	*/
	if (prs->prs_state == DSS_FINISHED) {
	uint64_t minutes_taken = (end - start) / 60;

	(void) printf(gettext("Removal of vdev %llu copied %s "
	"in %lluh%um, completed on %s"),
	(longlong_t)prs->prs_removing_vdev,
	copied_buf,
	(u_longlong_t)(minutes_taken / 60),
	(uint_t)(minutes_taken % 60),
	ctime((time_t *)&end));
	} else if (prs->prs_state == DSS_CANCELED) {
	(void) printf(gettext("Removal of %s canceled on %s"),
	vdev_name, ctime(&end));
	} else {
	uint64_t copied, total, elapsed, mins_left, hours_left;
	double fraction_done;
	uint_t rate;

	assert(prs->prs_state == DSS_SCANNING);

	/*
	* Removal is in progress.
	*/
	(void) printf(gettext(
	"Evacuation of %s in progress since %s"),
	vdev_name, ctime(&start));

	copied = prs->prs_copied > 0 ? prs->prs_copied : 1;
	total = prs->prs_to_copy;
	fraction_done = (double)copied / total;

	/* elapsed time for this pass */
	elapsed = time(NULL) - prs->prs_start_time;
	elapsed = elapsed > 0 ? elapsed : 1;
	rate = copied / elapsed;
	rate = rate > 0 ? rate : 1;
	mins_left = ((total - copied) / rate) / 60;
	hours_left = mins_left / 60;

	zfs_nicenum(copied, examined_buf, sizeof (examined_buf));
	zfs_nicenum(total, total_buf, sizeof (total_buf));
	zfs_nicenum(rate, rate_buf, sizeof (rate_buf));

	/*
	* do not print estimated time if hours_left is more than
	* 30 days
	*/
	(void) printf(gettext(
	"\t%s copied out of %s at %s/s, %.2f%% done"),
	examined_buf, total_buf, rate_buf, 100 * fraction_done);
	if (hours_left < (30 * 24)) {
	(void) printf(gettext(", %lluh%um to go\n"),
	(u_longlong_t)hours_left, (uint_t)(mins_left % 60));
	} else {
	(void) printf(gettext(
	", (copy is slow, no estimated time)\n"));
	}
	}
	free(vdev_name);

	if (prs->prs_mapping_memory > 0) {
	char mem_buf[7];
	zfs_nicenum(prs->prs_mapping_memory, mem_buf, sizeof (mem_buf));
	(void) printf(gettext(
	"\t%s memory used for removed device mappings\n"),
	mem_buf);
	}
	}

	static void
	print_checkpoint_status(pool_checkpoint_stat_t *pcs)
	{
	time_t start;
	char space_buf[7];

	if (pcs == NULL \|\| pcs->pcs_state == CS_NONE)
	return;

	(void) printf(gettext("checkpoint: "));

	start = pcs->pcs_start_time;
	zfs_nicenum(pcs->pcs_space, space_buf, sizeof (space_buf));

	if (pcs->pcs_state == CS_CHECKPOINT_EXISTS) {
	char *date = ctime(&start);

	/*
	* ctime() adds a newline at the end of the generated
	* string, thus the weird format specifier and the
	* strlen() call used to chop it off from the output.
	*/
	(void) printf(gettext("created %.*s, consumes %s\n"),
	(int)(strlen(date) - 1), date, space_buf);
	return;
	}

	assert(pcs->pcs_state == CS_CHECKPOINT_DISCARDING);

	(void) printf(gettext("discarding, %s remaining.\n"),
	space_buf);
	}

	static void
	print_error_log(zpool_handle_t *zhp)
	{
	nvlist_t *nverrlist = NULL;
	nvpair_t *elem;
	char *pathname;
	size_t len = MAXPATHLEN * 2;

	if (zpool_get_errlog(zhp, &nverrlist) != 0)
	return;

	(void) printf("errors: Permanent errors have been "
	"detected in the following files:\n\n");

	pathname = safe_malloc(len);
	elem = NULL;
	while ((elem = nvlist_next_nvpair(nverrlist, elem)) != NULL) {
	nvlist_t *nv;
	uint64_t dsobj, obj;

	verify(nvpair_value_nvlist(elem, &nv) == 0);
	verify(nvlist_lookup_uint64(nv, ZPOOL_ERR_DATASET,
	&dsobj) == 0);
	verify(nvlist_lookup_uint64(nv, ZPOOL_ERR_OBJECT,
	&obj) == 0);
	zpool_obj_to_path(zhp, dsobj, obj, pathname, len);
	(void) printf("%7s %s\n", "", pathname);
	}
	free(pathname);
	nvlist_free(nverrlist);
	}

	static void
	print_spares(zpool_handle_t zhp, status_cbdata_t cb, nvlist_t **spares,
	uint_t nspares)
	{
	uint_t i;
	char *name;

	if (nspares == 0)
	return;

	(void) printf(gettext("\tspares\n"));

	for (i = 0; i < nspares; i++) {
	name = zpool_vdev_name(g_zfs, zhp, spares[i],
	cb->cb_name_flags);
	print_status_config(zhp, cb, name, spares[i], 2, B_TRUE, NULL);
	free(name);
	}
	}

	static void
	print_l2cache(zpool_handle_t zhp, status_cbdata_t cb, nvlist_t **l2cache,
	uint_t nl2cache)
	{
	uint_t i;
	char *name;

	if (nl2cache == 0)
	return;

	(void) printf(gettext("\tcache\n"));

	for (i = 0; i < nl2cache; i++) {
	name = zpool_vdev_name(g_zfs, zhp, l2cache[i],
	cb->cb_name_flags);
	print_status_config(zhp, cb, name, l2cache[i], 2,
	B_FALSE, NULL);
	free(name);
	}
	}

	static void
	print_dedup_stats(nvlist_t *config)
	{
	ddt_histogram_t *ddh;
	ddt_stat_t *dds;
	ddt_object_t *ddo;
	uint_t c;
	char dspace[6], mspace[6];

	/*
	* If the pool was faulted then we may not have been able to
	* obtain the config. Otherwise, if we have anything in the dedup
	* table continue processing the stats.
	*/
	if (nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_OBJ_STATS,
	(uint64_t **)&ddo, &c) != 0)
	return;

	(void) printf("\n");
	(void) printf(gettext(" dedup: "));
	if (ddo->ddo_count == 0) {
	(void) printf(gettext("no DDT entries\n"));
	return;
	}

	zfs_nicebytes(ddo->ddo_dspace, dspace, sizeof (dspace));
	zfs_nicebytes(ddo->ddo_mspace, mspace, sizeof (mspace));
	(void) printf("DDT entries %llu, size %s on disk, %s in core\n",
	(u_longlong_t)ddo->ddo_count,
	dspace,
	mspace);

	verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_STATS,
	(uint64_t **)&dds, &c) == 0);
	verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_HISTOGRAM,
	(uint64_t **)&ddh, &c) == 0);
	zpool_dump_ddt(dds, ddh);
	}

	/*
	* Display a summary of pool status. Displays a summary such as:
	*
	* pool: tank
	* status: DEGRADED
	* reason: One or more devices ...
	* see: https://openzfs.github.io/openzfs-docs/msg/ZFS-xxxx-01
	* config:
	* mirror DEGRADED
	* c1t0d0 OK
	* c2t0d0 UNAVAIL
	*
	* When given the '-v' option, we print out the complete config. If the '-e'
	* option is specified, then we print out error rate information as well.
	*/
	static int
	status_callback(zpool_handle_t zhp, void data)
	{
	status_cbdata_t *cbp = data;
	nvlist_t config, nvroot;
	char *msgid;
	zpool_status_t reason;
	zpool_errata_t errata;
	const char *health;
	uint_t c;
	vdev_stat_t *vs;

	config = zpool_get_config(zhp, NULL);
	reason = zpool_get_status(zhp, &msgid, &errata);

	cbp->cb_count++;

	/*
	* If we were given 'zpool status -x', only report those pools with
	* problems.
	*/
	if (cbp->cb_explain &&
	(reason == ZPOOL_STATUS_OK \|\|
	reason == ZPOOL_STATUS_VERSION_OLDER \|\|
	reason == ZPOOL_STATUS_FEAT_DISABLED \|\|
	reason == ZPOOL_STATUS_COMPATIBILITY_ERR \|\|
	reason == ZPOOL_STATUS_INCOMPATIBLE_FEAT)) {
	if (!cbp->cb_allpools) {
	(void) printf(gettext("pool '%s' is healthy\n"),
	zpool_get_name(zhp));
	if (cbp->cb_first)
	cbp->cb_first = B_FALSE;
	}
	return (0);
	}

	if (cbp->cb_first)
	cbp->cb_first = B_FALSE;
	else
	(void) printf("\n");

	nvroot = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE);
	verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS,
	(uint64_t **)&vs, &c) == 0);

	health = zpool_get_state_str(zhp);

	printf(" ");
	printf_color(ANSI_BOLD, gettext("pool:"));
	printf(" %s\n", zpool_get_name(zhp));
	printf(" ");
	printf_color(ANSI_BOLD, gettext("state: "));

	printf_color(health_str_to_color(health), "%s", health);

	printf("\n");

	switch (reason) {
	case ZPOOL_STATUS_MISSING_DEV_R:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices could "
	"not be opened. Sufficient replicas exist for\n\tthe pool "
	"to continue functioning in a degraded state.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Attach the missing device "
	"and online it using 'zpool online'.\n"));
	break;

	case ZPOOL_STATUS_MISSING_DEV_NR:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices could "
	"not be opened. There are insufficient\n\treplicas for the"
	" pool to continue functioning.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Attach the missing device "
	"and online it using 'zpool online'.\n"));
	break;

	case ZPOOL_STATUS_CORRUPT_LABEL_R:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices could "
	"not be used because the label is missing or\n\tinvalid. "
	"Sufficient replicas exist for the pool to continue\n\t"
	"functioning in a degraded state.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Replace the device using "
	"'zpool replace'.\n"));
	break;

	case ZPOOL_STATUS_CORRUPT_LABEL_NR:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices could "
	"not be used because the label is missing \n\tor invalid. "
	"There are insufficient replicas for the pool to "
	"continue\n\tfunctioning.\n"));
	zpool_explain_recover(zpool_get_handle(zhp),
	zpool_get_name(zhp), reason, config);
	break;

	case ZPOOL_STATUS_FAILING_DEV:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices has "
	"experienced an unrecoverable error. An\n\tattempt was "
	"made to correct the error. Applications are "
	"unaffected.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Determine if the "
	"device needs to be replaced, and clear the errors\n\tusing"
	" 'zpool clear' or replace the device with 'zpool "
	"replace'.\n"));
	break;

	case ZPOOL_STATUS_OFFLINE_DEV:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices has "
	"been taken offline by the administrator.\n\tSufficient "
	"replicas exist for the pool to continue functioning in "
	"a\n\tdegraded state.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Online the device "
	"using 'zpool online' or replace the device with\n\t'zpool "
	"replace'.\n"));
	break;

	case ZPOOL_STATUS_REMOVED_DEV:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices has "
	"been removed by the administrator.\n\tSufficient "
	"replicas exist for the pool to continue functioning in "
	"a\n\tdegraded state.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Online the device "
	"using zpool online' or replace the device with\n\t'zpool "
	"replace'.\n"));
	break;

	case ZPOOL_STATUS_RESILVERING:
	case ZPOOL_STATUS_REBUILDING:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices is "
	"currently being resilvered. The pool will\n\tcontinue "
	"to function, possibly in a degraded state.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Wait for the resilver to "
	"complete.\n"));
	break;

	case ZPOOL_STATUS_REBUILD_SCRUB:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices have "
	"been sequentially resilvered, scrubbing\n\tthe pool "
	"is recommended.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Use 'zpool scrub' to "
	"verify all data checksums.\n"));
	break;

	case ZPOOL_STATUS_CORRUPT_DATA:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices has "
	"experienced an error resulting in data\n\tcorruption. "
	"Applications may be affected.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Restore the file in question"
	" if possible. Otherwise restore the\n\tentire pool from "
	"backup.\n"));
	break;

	case ZPOOL_STATUS_CORRUPT_POOL:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("The pool metadata is "
	"corrupted and the pool cannot be opened.\n"));
	zpool_explain_recover(zpool_get_handle(zhp),
	zpool_get_name(zhp), reason, config);
	break;

	case ZPOOL_STATUS_VERSION_OLDER:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("The pool is formatted using "
	"a legacy on-disk format. The pool can\n\tstill be used, "
	"but some features are unavailable.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Upgrade the pool using "
	"'zpool upgrade'. Once this is done, the\n\tpool will no "
	"longer be accessible on software that does not support\n\t"
	"feature flags.\n"));
	break;

	case ZPOOL_STATUS_VERSION_NEWER:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("The pool has been upgraded "
	"to a newer, incompatible on-disk version.\n\tThe pool "
	"cannot be accessed on this system.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Access the pool from a "
	"system running more recent software, or\n\trestore the "
	"pool from backup.\n"));
	break;

	case ZPOOL_STATUS_FEAT_DISABLED:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("Some supported and "
	"requested features are not enabled on the pool.\n\t"
	"The pool can still be used, but some features are "
	"unavailable.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Enable all features using "
	"'zpool upgrade'. Once this is done,\n\tthe pool may no "
	"longer be accessible by software that does not support\n\t"
	- "the features. See zpool-features(5) for details.\n"));
	+ "the features. See zpool-features(7) for details.\n"));
	break;

	case ZPOOL_STATUS_COMPATIBILITY_ERR:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("This pool has a "
	"compatibility list specified, but it could not be\n\t"
	"read/parsed at this time. The pool can still be used, "
	"but this\n\tshould be investigated.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Check the value of the "
	"'compatibility' property against the\n\t"
	"appropriate file in " ZPOOL_SYSCONF_COMPAT_D " or "
	ZPOOL_DATA_COMPAT_D ".\n"));
	break;

	case ZPOOL_STATUS_INCOMPATIBLE_FEAT:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more features "
	"are enabled on the pool despite not being\n\t"
	"requested by the 'compatibility' property.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Consider setting "
	"'compatibility' to an appropriate value, or\n\t"
	"adding needed features to the relevant file in\n\t"
	ZPOOL_SYSCONF_COMPAT_D " or " ZPOOL_DATA_COMPAT_D ".\n"));
	break;

	case ZPOOL_STATUS_UNSUP_FEAT_READ:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("The pool cannot be accessed "
	"on this system because it uses the\n\tfollowing feature(s)"
	" not supported on this system:\n"));
	zpool_print_unsup_feat(config);
	(void) printf("\n");
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Access the pool from a "
	"system that supports the required feature(s),\n\tor "
	"restore the pool from backup.\n"));
	break;

	case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("The pool can only be "
	"accessed in read-only mode on this system. It\n\tcannot be"
	" accessed in read-write mode because it uses the "
	"following\n\tfeature(s) not supported on this system:\n"));
	zpool_print_unsup_feat(config);
	(void) printf("\n");
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("The pool cannot be accessed "
	"in read-write mode. Import the pool with\n"
	"\t\"-o readonly=on\", access the pool from a system that "
	"supports the\n\trequired feature(s), or restore the "
	"pool from backup.\n"));
	break;

	case ZPOOL_STATUS_FAULTED_DEV_R:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices are "
	"faulted in response to persistent errors.\n\tSufficient "
	"replicas exist for the pool to continue functioning "
	"in a\n\tdegraded state.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Replace the faulted device, "
	"or use 'zpool clear' to mark the device\n\trepaired.\n"));
	break;

	case ZPOOL_STATUS_FAULTED_DEV_NR:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices are "
	"faulted in response to persistent errors. There are "
	"insufficient replicas for the pool to\n\tcontinue "
	"functioning.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Destroy and re-create the "
	"pool from a backup source. Manually marking the device\n"
	"\trepaired using 'zpool clear' may allow some data "
	"to be recovered.\n"));
	break;

	case ZPOOL_STATUS_IO_FAILURE_MMP:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("The pool is suspended "
	"because multihost writes failed or were delayed;\n\t"
	"another system could import the pool undetected.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Make sure the pool's devices"
	" are connected, then reboot your system and\n\timport the "
	"pool.\n"));
	break;

	case ZPOOL_STATUS_IO_FAILURE_WAIT:
	case ZPOOL_STATUS_IO_FAILURE_CONTINUE:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("One or more devices are "
	"faulted in response to IO failures.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Make sure the affected "
	"devices are connected, then run 'zpool clear'.\n"));
	break;

	case ZPOOL_STATUS_BAD_LOG:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("An intent log record "
	"could not be read.\n"
	"\tWaiting for administrator intervention to fix the "
	"faulted pool.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Either restore the affected "
	"device(s) and run 'zpool online',\n"
	"\tor ignore the intent log records by running "
	"'zpool clear'.\n"));
	break;

	case ZPOOL_STATUS_NON_NATIVE_ASHIFT:
	(void) printf(gettext("status: One or more devices are "
	"configured to use a non-native block size.\n"
	"\tExpect reduced performance.\n"));
	(void) printf(gettext("action: Replace affected devices with "
	"devices that support the\n\tconfigured block size, or "
	"migrate data to a properly configured\n\tpool.\n"));
	break;

	case ZPOOL_STATUS_HOSTID_MISMATCH:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("Mismatch between pool hostid"
	" and system hostid on imported pool.\n\tThis pool was "
	"previously imported into a system with a different "
	"hostid,\n\tand then was verbatim imported into this "
	"system.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("Export this pool on all "
	"systems on which it is imported.\n"
	"\tThen import it to correct the mismatch.\n"));
	break;

	case ZPOOL_STATUS_ERRATA:
	printf_color(ANSI_BOLD, gettext("status: "));
	printf_color(ANSI_YELLOW, gettext("Errata #%d detected.\n"),
	errata);

	switch (errata) {
	case ZPOOL_ERRATA_NONE:
	break;

	case ZPOOL_ERRATA_ZOL_2094_SCRUB:
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("To correct the issue"
	" run 'zpool scrub'.\n"));
	break;

	case ZPOOL_ERRATA_ZOL_6845_ENCRYPTION:
	(void) printf(gettext("\tExisting encrypted datasets "
	"contain an on-disk incompatibility\n\twhich "
	"needs to be corrected.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("To correct the issue"
	" backup existing encrypted datasets to new\n\t"
	"encrypted datasets and destroy the old ones. "
	"'zfs mount -o ro' can\n\tbe used to temporarily "
	"mount existing encrypted datasets readonly.\n"));
	break;

	case ZPOOL_ERRATA_ZOL_8308_ENCRYPTION:
	(void) printf(gettext("\tExisting encrypted snapshots "
	"and bookmarks contain an on-disk\n\tincompat"
	"ibility. This may cause on-disk corruption if "
	"they are used\n\twith 'zfs recv'.\n"));
	printf_color(ANSI_BOLD, gettext("action: "));
	printf_color(ANSI_YELLOW, gettext("To correct the"
	"issue, enable the bookmark_v2 feature. No "
	"additional\n\taction is needed if there are no "
	"encrypted snapshots or bookmarks.\n\tIf preserving"
	"the encrypted snapshots and bookmarks is required,"
	" use\n\ta non-raw send to backup and restore them."
	" Alternately, they may be\n\tremoved to resolve "
	"the incompatibility.\n"));
	break;

	default:
	/*
	* All errata which allow the pool to be imported
	* must contain an action message.
	*/
	assert(0);
	}
	break;

	default:
	/*
	* The remaining errors can't actually be generated, yet.
	*/
	assert(reason == ZPOOL_STATUS_OK);
	}

	if (msgid != NULL) {
	printf(" ");
	printf_color(ANSI_BOLD, gettext("see:"));
	printf(gettext(
	" https://openzfs.github.io/openzfs-docs/msg/%s\n"),
	msgid);
	}

	if (config != NULL) {
	uint64_t nerr;
	nvlist_t spares, l2cache;
	uint_t nspares, nl2cache;
	pool_checkpoint_stat_t *pcs = NULL;
	pool_removal_stat_t *prs = NULL;

	print_scan_status(zhp, nvroot);

	(void) nvlist_lookup_uint64_array(nvroot,
	ZPOOL_CONFIG_REMOVAL_STATS, (uint64_t **)&prs, &c);
	print_removal_status(zhp, prs);

	(void) nvlist_lookup_uint64_array(nvroot,
	ZPOOL_CONFIG_CHECKPOINT_STATS, (uint64_t **)&pcs, &c);
	print_checkpoint_status(pcs);

	cbp->cb_namewidth = max_width(zhp, nvroot, 0, 0,
	cbp->cb_name_flags \| VDEV_NAME_TYPE_ID);
	if (cbp->cb_namewidth < 10)
	cbp->cb_namewidth = 10;

	color_start(ANSI_BOLD);
	(void) printf(gettext("config:\n\n"));
	(void) printf(gettext("\t%-*s %-8s %5s %5s %5s"),
	cbp->cb_namewidth, "NAME", "STATE", "READ", "WRITE",
	"CKSUM");
	color_end();

	if (cbp->cb_print_slow_ios) {
	printf_color(ANSI_BOLD, " %5s", gettext("SLOW"));
	}

	if (cbp->vcdl != NULL)
	print_cmd_columns(cbp->vcdl, 0);

	printf("\n");

	print_status_config(zhp, cbp, zpool_get_name(zhp), nvroot, 0,
	B_FALSE, NULL);

	print_class_vdevs(zhp, cbp, nvroot, VDEV_ALLOC_BIAS_DEDUP);
	print_class_vdevs(zhp, cbp, nvroot, VDEV_ALLOC_BIAS_SPECIAL);
	print_class_vdevs(zhp, cbp, nvroot, VDEV_ALLOC_CLASS_LOGS);

	if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
	&l2cache, &nl2cache) == 0)
	print_l2cache(zhp, cbp, l2cache, nl2cache);

	if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
	&spares, &nspares) == 0)
	print_spares(zhp, cbp, spares, nspares);

	if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_ERRCOUNT,
	&nerr) == 0) {
	nvlist_t *nverrlist = NULL;

	/*
	* If the approximate error count is small, get a
	* precise count by fetching the entire log and
	* uniquifying the results.
	*/
	if (nerr > 0 && nerr < 100 && !cbp->cb_verbose &&
	zpool_get_errlog(zhp, &nverrlist) == 0) {
	nvpair_t *elem;

	elem = NULL;
	nerr = 0;
	while ((elem = nvlist_next_nvpair(nverrlist,
	elem)) != NULL) {
	nerr++;
	}
	}
	nvlist_free(nverrlist);

	(void) printf("\n");

	if (nerr == 0)
	(void) printf(gettext("errors: No known data "
	"errors\n"));
	else if (!cbp->cb_verbose)
	(void) printf(gettext("errors: %llu data "
	"errors, use '-v' for a list\n"),
	(u_longlong_t)nerr);
	else
	print_error_log(zhp);
	}

	if (cbp->cb_dedup_stats)
	print_dedup_stats(config);
	} else {
	(void) printf(gettext("config: The configuration cannot be "
	"determined.\n"));
	}

	return (0);
	}

	/*
	* zpool status [-c [script1,script2,...]] [-igLpPstvx] [-T d\|u] [pool] ...
	* [interval [count]]
	*
	* -c CMD For each vdev, run command CMD
	* -i Display vdev initialization status.
	* -g Display guid for individual vdev name.
	* -L Follow links when resolving vdev path name.
	* -p Display values in parsable (exact) format.
	* -P Display full path for vdev name.
	* -s Display slow IOs column.
	* -v Display complete error logs
	* -x Display only pools with potential problems
	* -D Display dedup status (undocumented)
	* -t Display vdev TRIM status.
	* -T Display a timestamp in date(1) or Unix format
	*
	* Describes the health status of all pools or some subset.
	*/
	int
	zpool_do_status(int argc, char **argv)
	{
	int c;
	int ret;
	float interval = 0;
	unsigned long count = 0;
	status_cbdata_t cb = { 0 };
	char *cmd = NULL;

	/* check options */
	while ((c = getopt(argc, argv, "c:igLpPsvxDtT:")) != -1) {
	switch (c) {
	case 'c':
	if (cmd != NULL) {
	fprintf(stderr,
	gettext("Can't set -c flag twice\n"));
	exit(1);
	}

	if (getenv("ZPOOL_SCRIPTS_ENABLED") != NULL &&
	!libzfs_envvar_is_set("ZPOOL_SCRIPTS_ENABLED")) {
	fprintf(stderr, gettext(
	"Can't run -c, disabled by "
	"ZPOOL_SCRIPTS_ENABLED.\n"));
	exit(1);
	}

	if ((getuid() <= 0 \|\| geteuid() <= 0) &&
	!libzfs_envvar_is_set("ZPOOL_SCRIPTS_AS_ROOT")) {
	fprintf(stderr, gettext(
	"Can't run -c with root privileges "
	"unless ZPOOL_SCRIPTS_AS_ROOT is set.\n"));
	exit(1);
	}
	cmd = optarg;
	break;
	case 'i':
	cb.cb_print_vdev_init = B_TRUE;
	break;
	case 'g':
	cb.cb_name_flags \|= VDEV_NAME_GUID;
	break;
	case 'L':
	cb.cb_name_flags \|= VDEV_NAME_FOLLOW_LINKS;
	break;
	case 'p':
	cb.cb_literal = B_TRUE;
	break;
	case 'P':
	cb.cb_name_flags \|= VDEV_NAME_PATH;
	break;
	case 's':
	cb.cb_print_slow_ios = B_TRUE;
	break;
	case 'v':
	cb.cb_verbose = B_TRUE;
	break;
	case 'x':
	cb.cb_explain = B_TRUE;
	break;
	case 'D':
	cb.cb_dedup_stats = B_TRUE;
	break;
	case 't':
	cb.cb_print_vdev_trim = B_TRUE;
	break;
	case 'T':
	get_timestamp_arg(*optarg);
	break;
	case '?':
	if (optopt == 'c') {
	print_zpool_script_list("status");
	exit(0);
	} else {
	fprintf(stderr,
	gettext("invalid option '%c'\n"), optopt);
	}
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	get_interval_count(&argc, argv, &interval, &count);

	if (argc == 0)
	cb.cb_allpools = B_TRUE;

	cb.cb_first = B_TRUE;
	cb.cb_print_status = B_TRUE;

	for (;;) {
	if (timestamp_fmt != NODATE)
	print_timestamp(timestamp_fmt);

	if (cmd != NULL)
	cb.vcdl = all_pools_for_each_vdev_run(argc, argv, cmd,
	NULL, NULL, 0, 0);

	ret = for_each_pool(argc, argv, B_TRUE, NULL, cb.cb_literal,
	status_callback, &cb);

	if (cb.vcdl != NULL)
	free_vdev_cmd_data_list(cb.vcdl);

	if (argc == 0 && cb.cb_count == 0)
	(void) fprintf(stderr, gettext("no pools available\n"));
	else if (cb.cb_explain && cb.cb_first && cb.cb_allpools)
	(void) printf(gettext("all pools are healthy\n"));

	if (ret != 0)
	return (ret);

	if (interval == 0)
	break;

	if (count != 0 && --count == 0)
	break;

	(void) fsleep(interval);
	}

	return (0);
	}

	typedef struct upgrade_cbdata {
	int cb_first;
	int cb_argc;
	uint64_t cb_version;
	char **cb_argv;
	} upgrade_cbdata_t;

	static int
	check_unsupp_fs(zfs_handle_t zhp, void unsupp_fs)
	{
	int zfs_version = (int)zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
	int count = (int )unsupp_fs;

	if (zfs_version > ZPL_VERSION) {
	(void) printf(gettext("%s (v%d) is not supported by this "
	"implementation of ZFS.\n"),
	zfs_get_name(zhp), zfs_version);
	(*count)++;
	}

	zfs_iter_filesystems(zhp, check_unsupp_fs, unsupp_fs);

	zfs_close(zhp);

	return (0);
	}

	static int
	upgrade_version(zpool_handle_t *zhp, uint64_t version)
	{
	int ret;
	nvlist_t *config;
	uint64_t oldversion;
	int unsupp_fs = 0;

	config = zpool_get_config(zhp, NULL);
	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
	&oldversion) == 0);

	char compat[ZFS_MAXPROPLEN];
	if (zpool_get_prop(zhp, ZPOOL_PROP_COMPATIBILITY, compat,
	ZFS_MAXPROPLEN, NULL, B_FALSE) != 0)
	compat[0] = '\0';

	assert(SPA_VERSION_IS_SUPPORTED(oldversion));
	assert(oldversion < version);

	ret = zfs_iter_root(zpool_get_handle(zhp), check_unsupp_fs, &unsupp_fs);
	if (ret != 0)
	return (ret);

	if (unsupp_fs) {
	(void) fprintf(stderr, gettext("Upgrade not performed due "
	"to %d unsupported filesystems (max v%d).\n"),
	unsupp_fs, (int)ZPL_VERSION);
	return (1);
	}

	if (strcmp(compat, ZPOOL_COMPAT_LEGACY) == 0) {
	(void) fprintf(stderr, gettext("Upgrade not performed because "
	"'compatibility' property set to '"
	ZPOOL_COMPAT_LEGACY "'.\n"));
	return (1);
	}

	ret = zpool_upgrade(zhp, version);
	if (ret != 0)
	return (ret);

	if (version >= SPA_VERSION_FEATURES) {
	(void) printf(gettext("Successfully upgraded "
	"'%s' from version %llu to feature flags.\n"),
	zpool_get_name(zhp), (u_longlong_t)oldversion);
	} else {
	(void) printf(gettext("Successfully upgraded "
	"'%s' from version %llu to version %llu.\n"),
	zpool_get_name(zhp), (u_longlong_t)oldversion,
	(u_longlong_t)version);
	}

	return (0);
	}

	static int
	upgrade_enable_all(zpool_handle_t zhp, int countp)
	{
	int i, ret, count;
	boolean_t firstff = B_TRUE;
	nvlist_t *enabled = zpool_get_features(zhp);

	char compat[ZFS_MAXPROPLEN];
	if (zpool_get_prop(zhp, ZPOOL_PROP_COMPATIBILITY, compat,
	ZFS_MAXPROPLEN, NULL, B_FALSE) != 0)
	compat[0] = '\0';

	boolean_t requested_features[SPA_FEATURES];
	if (zpool_do_load_compat(compat, requested_features) !=
	ZPOOL_COMPATIBILITY_OK)
	return (-1);

	count = 0;
	for (i = 0; i < SPA_FEATURES; i++) {
	const char *fname = spa_feature_table[i].fi_uname;
	const char *fguid = spa_feature_table[i].fi_guid;

	if (!spa_feature_table[i].fi_zfs_mod_supported)
	continue;

	if (!nvlist_exists(enabled, fguid) && requested_features[i]) {
	char *propname;
	verify(-1 != asprintf(&propname, "feature@%s", fname));
	ret = zpool_set_prop(zhp, propname,
	ZFS_FEATURE_ENABLED);
	if (ret != 0) {
	free(propname);
	return (ret);
	}
	count++;

	if (firstff) {
	(void) printf(gettext("Enabled the "
	"following features on '%s':\n"),
	zpool_get_name(zhp));
	firstff = B_FALSE;
	}
	(void) printf(gettext(" %s\n"), fname);
	free(propname);
	}
	}

	if (countp != NULL)
	*countp = count;
	return (0);
	}

	static int
	upgrade_cb(zpool_handle_t zhp, void arg)
	{
	upgrade_cbdata_t *cbp = arg;
	nvlist_t *config;
	uint64_t version;
	boolean_t modified_pool = B_FALSE;
	int ret;

	config = zpool_get_config(zhp, NULL);
	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
	&version) == 0);

	assert(SPA_VERSION_IS_SUPPORTED(version));

	if (version < cbp->cb_version) {
	cbp->cb_first = B_FALSE;
	ret = upgrade_version(zhp, cbp->cb_version);
	if (ret != 0)
	return (ret);
	modified_pool = B_TRUE;

	/*
	* If they did "zpool upgrade -a", then we could
	* be doing ioctls to different pools. We need
	* to log this history once to each pool, and bypass
	* the normal history logging that happens in main().
	*/
	(void) zpool_log_history(g_zfs, history_str);
	log_history = B_FALSE;
	}

	if (cbp->cb_version >= SPA_VERSION_FEATURES) {
	int count;
	ret = upgrade_enable_all(zhp, &count);
	if (ret != 0)
	return (ret);

	if (count > 0) {
	cbp->cb_first = B_FALSE;
	modified_pool = B_TRUE;
	}
	}

	if (modified_pool) {
	(void) printf("\n");
	(void) after_zpool_upgrade(zhp);
	}

	return (0);
	}

	static int
	upgrade_list_older_cb(zpool_handle_t zhp, void arg)
	{
	upgrade_cbdata_t *cbp = arg;
	nvlist_t *config;
	uint64_t version;

	config = zpool_get_config(zhp, NULL);
	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
	&version) == 0);

	assert(SPA_VERSION_IS_SUPPORTED(version));

	if (version < SPA_VERSION_FEATURES) {
	if (cbp->cb_first) {
	(void) printf(gettext("The following pools are "
	"formatted with legacy version numbers and can\n"
	"be upgraded to use feature flags. After "
	"being upgraded, these pools\nwill no "
	"longer be accessible by software that does not "
	"support feature\nflags.\n\n"
	"Note that setting a pool's 'compatibility' "
	"feature to '" ZPOOL_COMPAT_LEGACY "' will\n"
	"inhibit upgrades.\n\n"));
	(void) printf(gettext("VER POOL\n"));
	(void) printf(gettext("--- ------------\n"));
	cbp->cb_first = B_FALSE;
	}

	(void) printf("%2llu %s\n", (u_longlong_t)version,
	zpool_get_name(zhp));
	}

	return (0);
	}

	static int
	upgrade_list_disabled_cb(zpool_handle_t zhp, void arg)
	{
	upgrade_cbdata_t *cbp = arg;
	nvlist_t *config;
	uint64_t version;

	config = zpool_get_config(zhp, NULL);
	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
	&version) == 0);

	if (version >= SPA_VERSION_FEATURES) {
	int i;
	boolean_t poolfirst = B_TRUE;
	nvlist_t *enabled = zpool_get_features(zhp);

	for (i = 0; i < SPA_FEATURES; i++) {
	const char *fguid = spa_feature_table[i].fi_guid;
	const char *fname = spa_feature_table[i].fi_uname;

	if (!spa_feature_table[i].fi_zfs_mod_supported)
	continue;

	if (!nvlist_exists(enabled, fguid)) {
	if (cbp->cb_first) {
	(void) printf(gettext("\nSome "
	"supported features are not "
	"enabled on the following pools. "
	"Once a\nfeature is enabled the "
	"pool may become incompatible with "
	"software\nthat does not support "
	"the feature. See "
	- "zpool-features(5) for "
	+ "zpool-features(7) for "
	"details.\n\n"
	"Note that the pool "
	"'compatibility' feature can be "
	"used to inhibit\nfeature "
	"upgrades.\n\n"));
	(void) printf(gettext("POOL "
	"FEATURE\n"));
	(void) printf(gettext("------"
	"---------\n"));
	cbp->cb_first = B_FALSE;
	}

	if (poolfirst) {
	(void) printf(gettext("%s\n"),
	zpool_get_name(zhp));
	poolfirst = B_FALSE;
	}

	(void) printf(gettext(" %s\n"), fname);
	}
	/*
	* If they did "zpool upgrade -a", then we could
	* be doing ioctls to different pools. We need
	* to log this history once to each pool, and bypass
	* the normal history logging that happens in main().
	*/
	(void) zpool_log_history(g_zfs, history_str);
	log_history = B_FALSE;
	}
	}

	return (0);
	}

	/* ARGSUSED */
	static int
	upgrade_one(zpool_handle_t zhp, void data)
	{
	boolean_t modified_pool = B_FALSE;
	upgrade_cbdata_t *cbp = data;
	uint64_t cur_version;
	int ret;

	if (strcmp("log", zpool_get_name(zhp)) == 0) {
	(void) fprintf(stderr, gettext("'log' is now a reserved word\n"
	"Pool 'log' must be renamed using export and import"
	" to upgrade.\n"));
	return (1);
	}

	cur_version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL);
	if (cur_version > cbp->cb_version) {
	(void) printf(gettext("Pool '%s' is already formatted "
	"using more current version '%llu'.\n\n"),
	zpool_get_name(zhp), (u_longlong_t)cur_version);
	return (0);
	}

	if (cbp->cb_version != SPA_VERSION && cur_version == cbp->cb_version) {
	(void) printf(gettext("Pool '%s' is already formatted "
	"using version %llu.\n\n"), zpool_get_name(zhp),
	(u_longlong_t)cbp->cb_version);
	return (0);
	}

	if (cur_version != cbp->cb_version) {
	modified_pool = B_TRUE;
	ret = upgrade_version(zhp, cbp->cb_version);
	if (ret != 0)
	return (ret);
	}

	if (cbp->cb_version >= SPA_VERSION_FEATURES) {
	int count = 0;
	ret = upgrade_enable_all(zhp, &count);
	if (ret != 0)
	return (ret);

	if (count != 0) {
	modified_pool = B_TRUE;
	} else if (cur_version == SPA_VERSION) {
	(void) printf(gettext("Pool '%s' already has all "
	"supported and requested features enabled.\n"),
	zpool_get_name(zhp));
	}
	}

	if (modified_pool) {
	(void) printf("\n");
	(void) after_zpool_upgrade(zhp);
	}

	return (0);
	}

	/*
	* zpool upgrade
	* zpool upgrade -v
	* zpool upgrade [-V version] <-a \| pool ...>
	*
	* With no arguments, display downrev'd ZFS pool available for upgrade.
	* Individual pools can be upgraded by specifying the pool, and '-a' will
	* upgrade all pools.
	*/
	int
	zpool_do_upgrade(int argc, char **argv)
	{
	int c;
	upgrade_cbdata_t cb = { 0 };
	int ret = 0;
	boolean_t showversions = B_FALSE;
	boolean_t upgradeall = B_FALSE;
	char *end;


	/* check options */
	while ((c = getopt(argc, argv, ":avV:")) != -1) {
	switch (c) {
	case 'a':
	upgradeall = B_TRUE;
	break;
	case 'v':
	showversions = B_TRUE;
	break;
	case 'V':
	cb.cb_version = strtoll(optarg, &end, 10);
	if (*end != '\0' \|\|
	!SPA_VERSION_IS_SUPPORTED(cb.cb_version)) {
	(void) fprintf(stderr,
	gettext("invalid version '%s'\n"), optarg);
	usage(B_FALSE);
	}
	break;
	case ':':
	(void) fprintf(stderr, gettext("missing argument for "
	"'%c' option\n"), optopt);
	usage(B_FALSE);
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	cb.cb_argc = argc;
	cb.cb_argv = argv;
	argc -= optind;
	argv += optind;

	if (cb.cb_version == 0) {
	cb.cb_version = SPA_VERSION;
	} else if (!upgradeall && argc == 0) {
	(void) fprintf(stderr, gettext("-V option is "
	"incompatible with other arguments\n"));
	usage(B_FALSE);
	}

	if (showversions) {
	if (upgradeall \|\| argc != 0) {
	(void) fprintf(stderr, gettext("-v option is "
	"incompatible with other arguments\n"));
	usage(B_FALSE);
	}
	} else if (upgradeall) {
	if (argc != 0) {
	(void) fprintf(stderr, gettext("-a option should not "
	"be used along with a pool name\n"));
	usage(B_FALSE);
	}
	}

	(void) printf(gettext("This system supports ZFS pool feature "
	"flags.\n\n"));
	if (showversions) {
	int i;

	(void) printf(gettext("The following features are "
	"supported:\n\n"));
	(void) printf(gettext("FEAT DESCRIPTION\n"));
	(void) printf("----------------------------------------------"
	"---------------\n");
	for (i = 0; i < SPA_FEATURES; i++) {
	zfeature_info_t *fi = &spa_feature_table[i];
	if (!fi->fi_zfs_mod_supported)
	continue;
	const char *ro =
	(fi->fi_flags & ZFEATURE_FLAG_READONLY_COMPAT) ?
	" (read-only compatible)" : "";

	(void) printf("%-37s%s\n", fi->fi_uname, ro);
	(void) printf(" %s\n", fi->fi_desc);
	}
	(void) printf("\n");

	(void) printf(gettext("The following legacy versions are also "
	"supported:\n\n"));
	(void) printf(gettext("VER DESCRIPTION\n"));
	(void) printf("--- -----------------------------------------"
	"---------------\n");
	(void) printf(gettext(" 1 Initial ZFS version\n"));
	(void) printf(gettext(" 2 Ditto blocks "
	"(replicated metadata)\n"));
	(void) printf(gettext(" 3 Hot spares and double parity "
	"RAID-Z\n"));
	(void) printf(gettext(" 4 zpool history\n"));
	(void) printf(gettext(" 5 Compression using the gzip "
	"algorithm\n"));
	(void) printf(gettext(" 6 bootfs pool property\n"));
	(void) printf(gettext(" 7 Separate intent log devices\n"));
	(void) printf(gettext(" 8 Delegated administration\n"));
	(void) printf(gettext(" 9 refquota and refreservation "
	"properties\n"));
	(void) printf(gettext(" 10 Cache devices\n"));
	(void) printf(gettext(" 11 Improved scrub performance\n"));
	(void) printf(gettext(" 12 Snapshot properties\n"));
	(void) printf(gettext(" 13 snapused property\n"));
	(void) printf(gettext(" 14 passthrough-x aclinherit\n"));
	(void) printf(gettext(" 15 user/group space accounting\n"));
	(void) printf(gettext(" 16 stmf property support\n"));
	(void) printf(gettext(" 17 Triple-parity RAID-Z\n"));
	(void) printf(gettext(" 18 Snapshot user holds\n"));
	(void) printf(gettext(" 19 Log device removal\n"));
	(void) printf(gettext(" 20 Compression using zle "
	"(zero-length encoding)\n"));
	(void) printf(gettext(" 21 Deduplication\n"));
	(void) printf(gettext(" 22 Received properties\n"));
	(void) printf(gettext(" 23 Slim ZIL\n"));
	(void) printf(gettext(" 24 System attributes\n"));
	(void) printf(gettext(" 25 Improved scrub stats\n"));
	(void) printf(gettext(" 26 Improved snapshot deletion "
	"performance\n"));
	(void) printf(gettext(" 27 Improved snapshot creation "
	"performance\n"));
	(void) printf(gettext(" 28 Multiple vdev replacements\n"));
	(void) printf(gettext("\nFor more information on a particular "
	"version, including supported releases,\n"));
	(void) printf(gettext("see the ZFS Administration Guide.\n\n"));
	} else if (argc == 0 && upgradeall) {
	cb.cb_first = B_TRUE;
	ret = zpool_iter(g_zfs, upgrade_cb, &cb);
	if (ret == 0 && cb.cb_first) {
	if (cb.cb_version == SPA_VERSION) {
	(void) printf(gettext("All pools are already "
	"formatted using feature flags.\n\n"));
	(void) printf(gettext("Every feature flags "
	"pool already has all supported and "
	"requested features enabled.\n"));
	} else {
	(void) printf(gettext("All pools are already "
	"formatted with version %llu or higher.\n"),
	(u_longlong_t)cb.cb_version);
	}
	}
	} else if (argc == 0) {
	cb.cb_first = B_TRUE;
	ret = zpool_iter(g_zfs, upgrade_list_older_cb, &cb);
	assert(ret == 0);

	if (cb.cb_first) {
	(void) printf(gettext("All pools are formatted "
	"using feature flags.\n\n"));
	} else {
	(void) printf(gettext("\nUse 'zpool upgrade -v' "
	"for a list of available legacy versions.\n"));
	}

	cb.cb_first = B_TRUE;
	ret = zpool_iter(g_zfs, upgrade_list_disabled_cb, &cb);
	assert(ret == 0);

	if (cb.cb_first) {
	(void) printf(gettext("Every feature flags pool has "
	"all supported and requested features enabled.\n"));
	} else {
	(void) printf(gettext("\n"));
	}
	} else {
	ret = for_each_pool(argc, argv, B_FALSE, NULL, B_FALSE,
	upgrade_one, &cb);
	}

	return (ret);
	}

	typedef struct hist_cbdata {
	boolean_t first;
	boolean_t longfmt;
	boolean_t internal;
	} hist_cbdata_t;

	static void
	print_history_records(nvlist_t nvhis, hist_cbdata_t cb)
	{
	nvlist_t **records;
	uint_t numrecords;
	int i;

	verify(nvlist_lookup_nvlist_array(nvhis, ZPOOL_HIST_RECORD,
	&records, &numrecords) == 0);
	for (i = 0; i < numrecords; i++) {
	nvlist_t *rec = records[i];
	char tbuf[64] = "";

	if (nvlist_exists(rec, ZPOOL_HIST_TIME)) {
	time_t tsec;
	struct tm t;

	tsec = fnvlist_lookup_uint64(records[i],
	ZPOOL_HIST_TIME);
	(void) localtime_r(&tsec, &t);
	(void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
	}

	if (nvlist_exists(rec, ZPOOL_HIST_ELAPSED_NS)) {
	uint64_t elapsed_ns = fnvlist_lookup_int64(records[i],
	ZPOOL_HIST_ELAPSED_NS);
	(void) snprintf(tbuf + strlen(tbuf),
	sizeof (tbuf) - strlen(tbuf),
	" (%lldms)", (long long)elapsed_ns / 1000 / 1000);
	}

	if (nvlist_exists(rec, ZPOOL_HIST_CMD)) {
	(void) printf("%s %s", tbuf,
	fnvlist_lookup_string(rec, ZPOOL_HIST_CMD));
	} else if (nvlist_exists(rec, ZPOOL_HIST_INT_EVENT)) {
	int ievent =
	fnvlist_lookup_uint64(rec, ZPOOL_HIST_INT_EVENT);
	if (!cb->internal)
	continue;
	if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) {
	(void) printf("%s unrecognized record:\n",
	tbuf);
	dump_nvlist(rec, 4);
	continue;
	}
	(void) printf("%s [internal %s txg:%lld] %s", tbuf,
	zfs_history_event_names[ievent],
	(longlong_t)fnvlist_lookup_uint64(
	rec, ZPOOL_HIST_TXG),
	fnvlist_lookup_string(rec, ZPOOL_HIST_INT_STR));
	} else if (nvlist_exists(rec, ZPOOL_HIST_INT_NAME)) {
	if (!cb->internal)
	continue;
	(void) printf("%s [txg:%lld] %s", tbuf,
	(longlong_t)fnvlist_lookup_uint64(
	rec, ZPOOL_HIST_TXG),
	fnvlist_lookup_string(rec, ZPOOL_HIST_INT_NAME));
	if (nvlist_exists(rec, ZPOOL_HIST_DSNAME)) {
	(void) printf(" %s (%llu)",
	fnvlist_lookup_string(rec,
	ZPOOL_HIST_DSNAME),
	(u_longlong_t)fnvlist_lookup_uint64(rec,
	ZPOOL_HIST_DSID));
	}
	(void) printf(" %s", fnvlist_lookup_string(rec,
	ZPOOL_HIST_INT_STR));
	} else if (nvlist_exists(rec, ZPOOL_HIST_IOCTL)) {
	if (!cb->internal)
	continue;
	(void) printf("%s ioctl %s\n", tbuf,
	fnvlist_lookup_string(rec, ZPOOL_HIST_IOCTL));
	if (nvlist_exists(rec, ZPOOL_HIST_INPUT_NVL)) {
	(void) printf(" input:\n");
	dump_nvlist(fnvlist_lookup_nvlist(rec,
	ZPOOL_HIST_INPUT_NVL), 8);
	}
	if (nvlist_exists(rec, ZPOOL_HIST_OUTPUT_NVL)) {
	(void) printf(" output:\n");
	dump_nvlist(fnvlist_lookup_nvlist(rec,
	ZPOOL_HIST_OUTPUT_NVL), 8);
	}
	if (nvlist_exists(rec, ZPOOL_HIST_OUTPUT_SIZE)) {
	(void) printf(" output nvlist omitted; "
	"original size: %lldKB\n",
	(longlong_t)fnvlist_lookup_int64(rec,
	ZPOOL_HIST_OUTPUT_SIZE) / 1024);
	}
	if (nvlist_exists(rec, ZPOOL_HIST_ERRNO)) {
	(void) printf(" errno: %lld\n",
	(longlong_t)fnvlist_lookup_int64(rec,
	ZPOOL_HIST_ERRNO));
	}
	} else {
	if (!cb->internal)
	continue;
	(void) printf("%s unrecognized record:\n", tbuf);
	dump_nvlist(rec, 4);
	}

	if (!cb->longfmt) {
	(void) printf("\n");
	continue;
	}
	(void) printf(" [");
	if (nvlist_exists(rec, ZPOOL_HIST_WHO)) {
	uid_t who = fnvlist_lookup_uint64(rec, ZPOOL_HIST_WHO);
	struct passwd *pwd = getpwuid(who);
	(void) printf("user %d ", (int)who);
	if (pwd != NULL)
	(void) printf("(%s) ", pwd->pw_name);
	}
	if (nvlist_exists(rec, ZPOOL_HIST_HOST)) {
	(void) printf("on %s",
	fnvlist_lookup_string(rec, ZPOOL_HIST_HOST));
	}
	if (nvlist_exists(rec, ZPOOL_HIST_ZONE)) {
	(void) printf(":%s",
	fnvlist_lookup_string(rec, ZPOOL_HIST_ZONE));
	}

	(void) printf("]");
	(void) printf("\n");
	}
	}

	/*
	* Print out the command history for a specific pool.
	*/
	static int
	get_history_one(zpool_handle_t zhp, void data)
	{
	nvlist_t *nvhis;
	int ret;
	hist_cbdata_t cb = (hist_cbdata_t )data;
	uint64_t off = 0;
	boolean_t eof = B_FALSE;

	cb->first = B_FALSE;

	(void) printf(gettext("History for '%s':\n"), zpool_get_name(zhp));

	while (!eof) {
	if ((ret = zpool_get_history(zhp, &nvhis, &off, &eof)) != 0)
	return (ret);

	print_history_records(nvhis, cb);
	nvlist_free(nvhis);
	}
	(void) printf("\n");

	return (ret);
	}

	/*
	* zpool history <pool>
	*
	* Displays the history of commands that modified pools.
	*/
	int
	zpool_do_history(int argc, char **argv)
	{
	hist_cbdata_t cbdata = { 0 };
	int ret;
	int c;

	cbdata.first = B_TRUE;
	/* check options */
	while ((c = getopt(argc, argv, "li")) != -1) {
	switch (c) {
	case 'l':
	cbdata.longfmt = B_TRUE;
	break;
	case 'i':
	cbdata.internal = B_TRUE;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}
	argc -= optind;
	argv += optind;

	ret = for_each_pool(argc, argv, B_FALSE, NULL, B_FALSE, get_history_one,
	&cbdata);

	if (argc == 0 && cbdata.first == B_TRUE) {
	(void) fprintf(stderr, gettext("no pools available\n"));
	return (0);
	}

	return (ret);
	}

	typedef struct ev_opts {
	int verbose;
	int scripted;
	int follow;
	int clear;
	char poolname[ZFS_MAX_DATASET_NAME_LEN];
	} ev_opts_t;

	static void
	zpool_do_events_short(nvlist_t nvl, ev_opts_t opts)
	{
	char ctime_str[26], str[32], *ptr;
	int64_t *tv;
	uint_t n;

	verify(nvlist_lookup_int64_array(nvl, FM_EREPORT_TIME, &tv, &n) == 0);
	memset(str, ' ', 32);
	(void) ctime_r((const time_t *)&tv[0], ctime_str);
	(void) memcpy(str, ctime_str+4, 6); /* 'Jun 30' */
	(void) memcpy(str+7, ctime_str+20, 4); /* '1993' */
	(void) memcpy(str+12, ctime_str+11, 8); /* '21:49:08' */
	(void) sprintf(str+20, ".%09lld", (longlong_t)tv[1]); /* '.123456789' */
	if (opts->scripted)
	(void) printf(gettext("%s\t"), str);
	else
	(void) printf(gettext("%s "), str);

	verify(nvlist_lookup_string(nvl, FM_CLASS, &ptr) == 0);
	(void) printf(gettext("%s\n"), ptr);
	}

	static void
	zpool_do_events_nvprint(nvlist_t *nvl, int depth)
	{
	nvpair_t *nvp;

	for (nvp = nvlist_next_nvpair(nvl, NULL);
	nvp != NULL; nvp = nvlist_next_nvpair(nvl, nvp)) {

	data_type_t type = nvpair_type(nvp);
	const char *name = nvpair_name(nvp);

	boolean_t b;
	uint8_t i8;
	uint16_t i16;
	uint32_t i32;
	uint64_t i64;
	char *str;
	nvlist_t *cnv;

	printf(gettext("%*s%s = "), depth, "", name);

	switch (type) {
	case DATA_TYPE_BOOLEAN:
	printf(gettext("%s"), "1");
	break;

	case DATA_TYPE_BOOLEAN_VALUE:
	(void) nvpair_value_boolean_value(nvp, &b);
	printf(gettext("%s"), b ? "1" : "0");
	break;

	case DATA_TYPE_BYTE:
	(void) nvpair_value_byte(nvp, &i8);
	printf(gettext("0x%x"), i8);
	break;

	case DATA_TYPE_INT8:
	(void) nvpair_value_int8(nvp, (void *)&i8);
	printf(gettext("0x%x"), i8);
	break;

	case DATA_TYPE_UINT8:
	(void) nvpair_value_uint8(nvp, &i8);
	printf(gettext("0x%x"), i8);
	break;

	case DATA_TYPE_INT16:
	(void) nvpair_value_int16(nvp, (void *)&i16);
	printf(gettext("0x%x"), i16);
	break;

	case DATA_TYPE_UINT16:
	(void) nvpair_value_uint16(nvp, &i16);
	printf(gettext("0x%x"), i16);
	break;

	case DATA_TYPE_INT32:
	(void) nvpair_value_int32(nvp, (void *)&i32);
	printf(gettext("0x%x"), i32);
	break;

	case DATA_TYPE_UINT32:
	(void) nvpair_value_uint32(nvp, &i32);
	printf(gettext("0x%x"), i32);
	break;

	case DATA_TYPE_INT64:
	(void) nvpair_value_int64(nvp, (void *)&i64);
	printf(gettext("0x%llx"), (u_longlong_t)i64);
	break;

	case DATA_TYPE_UINT64:
	(void) nvpair_value_uint64(nvp, &i64);
	/*
	* translate vdev state values to readable
	* strings to aide zpool events consumers
	*/
	if (strcmp(name,
	FM_EREPORT_PAYLOAD_ZFS_VDEV_STATE) == 0 \|\|
	strcmp(name,
	FM_EREPORT_PAYLOAD_ZFS_VDEV_LASTSTATE) == 0) {
	printf(gettext("\"%s\" (0x%llx)"),
	zpool_state_to_name(i64, VDEV_AUX_NONE),
	(u_longlong_t)i64);
	} else {
	printf(gettext("0x%llx"), (u_longlong_t)i64);
	}
	break;

	case DATA_TYPE_HRTIME:
	(void) nvpair_value_hrtime(nvp, (void *)&i64);
	printf(gettext("0x%llx"), (u_longlong_t)i64);
	break;

	case DATA_TYPE_STRING:
	(void) nvpair_value_string(nvp, &str);
	printf(gettext("\"%s\""), str ? str : "<NULL>");
	break;

	case DATA_TYPE_NVLIST:
	printf(gettext("(embedded nvlist)\n"));
	(void) nvpair_value_nvlist(nvp, &cnv);
	zpool_do_events_nvprint(cnv, depth + 8);
	printf(gettext("%*s(end %s)"), depth, "", name);
	break;

	case DATA_TYPE_NVLIST_ARRAY: {
	nvlist_t **val;
	uint_t i, nelem;

	(void) nvpair_value_nvlist_array(nvp, &val, &nelem);
	printf(gettext("(%d embedded nvlists)\n"), nelem);
	for (i = 0; i < nelem; i++) {
	printf(gettext("%*s%s[%d] = %s\n"),
	depth, "", name, i, "(embedded nvlist)");
	zpool_do_events_nvprint(val[i], depth + 8);
	printf(gettext("%*s(end %s[%i])\n"),
	depth, "", name, i);
	}
	printf(gettext("%*s(end %s)\n"), depth, "", name);
	}
	break;

	case DATA_TYPE_INT8_ARRAY: {
	int8_t *val;
	uint_t i, nelem;

	(void) nvpair_value_int8_array(nvp, &val, &nelem);
	for (i = 0; i < nelem; i++)
	printf(gettext("0x%x "), val[i]);

	break;
	}

	case DATA_TYPE_UINT8_ARRAY: {
	uint8_t *val;
	uint_t i, nelem;

	(void) nvpair_value_uint8_array(nvp, &val, &nelem);
	for (i = 0; i < nelem; i++)
	printf(gettext("0x%x "), val[i]);

	break;
	}

	case DATA_TYPE_INT16_ARRAY: {
	int16_t *val;
	uint_t i, nelem;

	(void) nvpair_value_int16_array(nvp, &val, &nelem);
	for (i = 0; i < nelem; i++)
	printf(gettext("0x%x "), val[i]);

	break;
	}

	case DATA_TYPE_UINT16_ARRAY: {
	uint16_t *val;
	uint_t i, nelem;

	(void) nvpair_value_uint16_array(nvp, &val, &nelem);
	for (i = 0; i < nelem; i++)
	printf(gettext("0x%x "), val[i]);

	break;
	}

	case DATA_TYPE_INT32_ARRAY: {
	int32_t *val;
	uint_t i, nelem;

	(void) nvpair_value_int32_array(nvp, &val, &nelem);
	for (i = 0; i < nelem; i++)
	printf(gettext("0x%x "), val[i]);

	break;
	}

	case DATA_TYPE_UINT32_ARRAY: {
	uint32_t *val;
	uint_t i, nelem;

	(void) nvpair_value_uint32_array(nvp, &val, &nelem);
	for (i = 0; i < nelem; i++)
	printf(gettext("0x%x "), val[i]);

	break;
	}

	case DATA_TYPE_INT64_ARRAY: {
	int64_t *val;
	uint_t i, nelem;

	(void) nvpair_value_int64_array(nvp, &val, &nelem);
	for (i = 0; i < nelem; i++)
	printf(gettext("0x%llx "),
	(u_longlong_t)val[i]);

	break;
	}

	case DATA_TYPE_UINT64_ARRAY: {
	uint64_t *val;
	uint_t i, nelem;

	(void) nvpair_value_uint64_array(nvp, &val, &nelem);
	for (i = 0; i < nelem; i++)
	printf(gettext("0x%llx "),
	(u_longlong_t)val[i]);

	break;
	}

	case DATA_TYPE_STRING_ARRAY: {
	char **str;
	uint_t i, nelem;

	(void) nvpair_value_string_array(nvp, &str, &nelem);
	for (i = 0; i < nelem; i++)
	printf(gettext("\"%s\" "),
	str[i] ? str[i] : "<NULL>");

	break;
	}

	case DATA_TYPE_BOOLEAN_ARRAY:
	case DATA_TYPE_BYTE_ARRAY:
	case DATA_TYPE_DOUBLE:
	case DATA_TYPE_DONTCARE:
	case DATA_TYPE_UNKNOWN:
	printf(gettext("<unknown>"));
	break;
	}

	printf(gettext("\n"));
	}
	}

	static int
	zpool_do_events_next(ev_opts_t *opts)
	{
	nvlist_t *nvl;
	int zevent_fd, ret, dropped;
	char *pool;

	zevent_fd = open(ZFS_DEV, O_RDWR);
	VERIFY(zevent_fd >= 0);

	if (!opts->scripted)
	(void) printf(gettext("%-30s %s\n"), "TIME", "CLASS");

	while (1) {
	ret = zpool_events_next(g_zfs, &nvl, &dropped,
	(opts->follow ? ZEVENT_NONE : ZEVENT_NONBLOCK), zevent_fd);
	if (ret \|\| nvl == NULL)
	break;

	if (dropped > 0)
	(void) printf(gettext("dropped %d events\n"), dropped);

	if (strlen(opts->poolname) > 0 &&
	nvlist_lookup_string(nvl, FM_FMRI_ZFS_POOL, &pool) == 0 &&
	strcmp(opts->poolname, pool) != 0)
	continue;

	zpool_do_events_short(nvl, opts);

	if (opts->verbose) {
	zpool_do_events_nvprint(nvl, 8);
	printf(gettext("\n"));
	}
	(void) fflush(stdout);

	nvlist_free(nvl);
	}

	VERIFY(0 == close(zevent_fd));

	return (ret);
	}

	static int
	zpool_do_events_clear(ev_opts_t *opts)
	{
	int count, ret;

	ret = zpool_events_clear(g_zfs, &count);
	if (!ret)
	(void) printf(gettext("cleared %d events\n"), count);

	return (ret);
	}

	/*
	* zpool events [-vHf [pool] \| -c]
	*
	* Displays events logs by ZFS.
	*/
	int
	zpool_do_events(int argc, char **argv)
	{
	ev_opts_t opts = { 0 };
	int ret;
	int c;

	/* check options */
	while ((c = getopt(argc, argv, "vHfc")) != -1) {
	switch (c) {
	case 'v':
	opts.verbose = 1;
	break;
	case 'H':
	opts.scripted = 1;
	break;
	case 'f':
	opts.follow = 1;
	break;
	case 'c':
	opts.clear = 1;
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}
	argc -= optind;
	argv += optind;

	if (argc > 1) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	} else if (argc == 1) {
	(void) strlcpy(opts.poolname, argv[0], sizeof (opts.poolname));
	if (!zfs_name_valid(opts.poolname, ZFS_TYPE_POOL)) {
	(void) fprintf(stderr,
	gettext("invalid pool name '%s'\n"), opts.poolname);
	usage(B_FALSE);
	}
	}

	if ((argc == 1 \|\| opts.verbose \|\| opts.scripted \|\| opts.follow) &&
	opts.clear) {
	(void) fprintf(stderr,
	gettext("invalid options combined with -c\n"));
	usage(B_FALSE);
	}

	if (opts.clear)
	ret = zpool_do_events_clear(&opts);
	else
	ret = zpool_do_events_next(&opts);

	return (ret);
	}

	static int
	get_callback(zpool_handle_t zhp, void data)
	{
	zprop_get_cbdata_t cbp = (zprop_get_cbdata_t )data;
	char value[MAXNAMELEN];
	zprop_source_t srctype;
	zprop_list_t *pl;

	for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) {

	/*
	* Skip the special fake placeholder. This will also skip
	* over the name property when 'all' is specified.
	*/
	if (pl->pl_prop == ZPOOL_PROP_NAME &&
	pl == cbp->cb_proplist)
	continue;

	if (pl->pl_prop == ZPROP_INVAL &&
	(zpool_prop_feature(pl->pl_user_prop) \|\|
	zpool_prop_unsupported(pl->pl_user_prop))) {
	srctype = ZPROP_SRC_LOCAL;

	if (zpool_prop_get_feature(zhp, pl->pl_user_prop,
	value, sizeof (value)) == 0) {
	zprop_print_one_property(zpool_get_name(zhp),
	cbp, pl->pl_user_prop, value, srctype,
	NULL, NULL);
	}
	} else {
	if (zpool_get_prop(zhp, pl->pl_prop, value,
	sizeof (value), &srctype, cbp->cb_literal) != 0)
	continue;

	zprop_print_one_property(zpool_get_name(zhp), cbp,
	zpool_prop_to_name(pl->pl_prop), value, srctype,
	NULL, NULL);
	}
	}
	return (0);
	}

	/*
	* zpool get [-Hp] [-o "all" \| field[,...]] <"all" \| property[,...]> <pool> ...
	*
	* -H Scripted mode. Don't display headers, and separate properties
	* by a single tab.
	* -o List of columns to display. Defaults to
	* "name,property,value,source".
	* -p Display values in parsable (exact) format.
	*
	* Get properties of pools in the system. Output space statistics
	* for each one as well as other attributes.
	*/
	int
	zpool_do_get(int argc, char **argv)
	{
	zprop_get_cbdata_t cb = { 0 };
	zprop_list_t fake_name = { 0 };
	int ret;
	int c, i;
	char *value;

	cb.cb_first = B_TRUE;

	/*
	* Set up default columns and sources.
	*/
	cb.cb_sources = ZPROP_SRC_ALL;
	cb.cb_columns[0] = GET_COL_NAME;
	cb.cb_columns[1] = GET_COL_PROPERTY;
	cb.cb_columns[2] = GET_COL_VALUE;
	cb.cb_columns[3] = GET_COL_SOURCE;
	cb.cb_type = ZFS_TYPE_POOL;

	/* check options */
	while ((c = getopt(argc, argv, ":Hpo:")) != -1) {
	switch (c) {
	case 'p':
	cb.cb_literal = B_TRUE;
	break;
	case 'H':
	cb.cb_scripted = B_TRUE;
	break;
	case 'o':
	bzero(&cb.cb_columns, sizeof (cb.cb_columns));
	i = 0;
	while (*optarg != '\0') {
	static char *col_subopts[] =
	{ "name", "property", "value", "source",
	"all", NULL };

	if (i == ZFS_GET_NCOLS) {
	(void) fprintf(stderr, gettext("too "
	"many fields given to -o "
	"option\n"));
	usage(B_FALSE);
	}

	switch (getsubopt(&optarg, col_subopts,
	&value)) {
	case 0:
	cb.cb_columns[i++] = GET_COL_NAME;
	break;
	case 1:
	cb.cb_columns[i++] = GET_COL_PROPERTY;
	break;
	case 2:
	cb.cb_columns[i++] = GET_COL_VALUE;
	break;
	case 3:
	cb.cb_columns[i++] = GET_COL_SOURCE;
	break;
	case 4:
	if (i > 0) {
	(void) fprintf(stderr,
	gettext("\"all\" conflicts "
	"with specific fields "
	"given to -o option\n"));
	usage(B_FALSE);
	}
	cb.cb_columns[0] = GET_COL_NAME;
	cb.cb_columns[1] = GET_COL_PROPERTY;
	cb.cb_columns[2] = GET_COL_VALUE;
	cb.cb_columns[3] = GET_COL_SOURCE;
	i = ZFS_GET_NCOLS;
	break;
	default:
	(void) fprintf(stderr,
	gettext("invalid column name "
	"'%s'\n"), value);
	usage(B_FALSE);
	}
	}
	break;
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing property "
	"argument\n"));
	usage(B_FALSE);
	}

	if (zprop_get_list(g_zfs, argv[0], &cb.cb_proplist,
	ZFS_TYPE_POOL) != 0)
	usage(B_FALSE);

	argc--;
	argv++;

	if (cb.cb_proplist != NULL) {
	fake_name.pl_prop = ZPOOL_PROP_NAME;
	fake_name.pl_width = strlen(gettext("NAME"));
	fake_name.pl_next = cb.cb_proplist;
	cb.cb_proplist = &fake_name;
	}

	ret = for_each_pool(argc, argv, B_TRUE, &cb.cb_proplist, cb.cb_literal,
	get_callback, &cb);

	if (cb.cb_proplist == &fake_name)
	zprop_free_list(fake_name.pl_next);
	else
	zprop_free_list(cb.cb_proplist);

	return (ret);
	}

	typedef struct set_cbdata {
	char *cb_propname;
	char *cb_value;
	boolean_t cb_any_successful;
	} set_cbdata_t;

	static int
	set_callback(zpool_handle_t zhp, void data)
	{
	int error;
	set_cbdata_t cb = (set_cbdata_t )data;

	/* Check if we have out-of-bounds features */
	if (strcmp(cb->cb_propname, ZPOOL_CONFIG_COMPATIBILITY) == 0) {
	boolean_t features[SPA_FEATURES];
	if (zpool_do_load_compat(cb->cb_value, features) !=
	ZPOOL_COMPATIBILITY_OK)
	return (-1);

	nvlist_t *enabled = zpool_get_features(zhp);
	spa_feature_t i;
	for (i = 0; i < SPA_FEATURES; i++) {
	const char *fguid = spa_feature_table[i].fi_guid;
	if (nvlist_exists(enabled, fguid) && !features[i])
	break;
	}
	if (i < SPA_FEATURES)
	(void) fprintf(stderr, gettext("Warning: one or "
	"more features already enabled on pool '%s'\n"
	"are not present in this compatibility set.\n"),
	zpool_get_name(zhp));
	}

	/* if we're setting a feature, check it's in compatibility set */
	if (zpool_prop_feature(cb->cb_propname) &&
	strcmp(cb->cb_value, ZFS_FEATURE_ENABLED) == 0) {
	char *fname = strchr(cb->cb_propname, '@') + 1;
	spa_feature_t f;

	if (zfeature_lookup_name(fname, &f) == 0) {
	char compat[ZFS_MAXPROPLEN];
	if (zpool_get_prop(zhp, ZPOOL_PROP_COMPATIBILITY,
	compat, ZFS_MAXPROPLEN, NULL, B_FALSE) != 0)
	compat[0] = '\0';

	boolean_t features[SPA_FEATURES];
	if (zpool_do_load_compat(compat, features) !=
	ZPOOL_COMPATIBILITY_OK) {
	(void) fprintf(stderr, gettext("Error: "
	"cannot enable feature '%s' on pool '%s'\n"
	"because the pool's 'compatibility' "
	"property cannot be parsed.\n"),
	fname, zpool_get_name(zhp));
	return (-1);
	}

	if (!features[f]) {
	(void) fprintf(stderr, gettext("Error: "
	"cannot enable feature '%s' on pool '%s'\n"
	"as it is not specified in this pool's "
	"current compatibility set.\n"
	"Consider setting 'compatibility' to a "
	"less restrictive set, or to 'off'.\n"),
	fname, zpool_get_name(zhp));
	return (-1);
	}
	}
	}

	error = zpool_set_prop(zhp, cb->cb_propname, cb->cb_value);

	if (!error)
	cb->cb_any_successful = B_TRUE;

	return (error);
	}

	int
	zpool_do_set(int argc, char **argv)
	{
	set_cbdata_t cb = { 0 };
	int error;

	if (argc > 1 && argv[1][0] == '-') {
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	argv[1][1]);
	usage(B_FALSE);
	}

	if (argc < 2) {
	(void) fprintf(stderr, gettext("missing property=value "
	"argument\n"));
	usage(B_FALSE);
	}

	if (argc < 3) {
	(void) fprintf(stderr, gettext("missing pool name\n"));
	usage(B_FALSE);
	}

	if (argc > 3) {
	(void) fprintf(stderr, gettext("too many pool names\n"));
	usage(B_FALSE);
	}

	cb.cb_propname = argv[1];
	cb.cb_value = strchr(cb.cb_propname, '=');
	if (cb.cb_value == NULL) {
	(void) fprintf(stderr, gettext("missing value in "
	"property=value argument\n"));
	usage(B_FALSE);
	}

	*(cb.cb_value) = '\0';
	cb.cb_value++;

	error = for_each_pool(argc - 2, argv + 2, B_TRUE, NULL, B_FALSE,
	set_callback, &cb);

	return (error);
	}

	/* Add up the total number of bytes left to initialize/trim across all vdevs */
	static uint64_t
	vdev_activity_remaining(nvlist_t *nv, zpool_wait_activity_t activity)
	{
	uint64_t bytes_remaining;
	nvlist_t **child;
	uint_t c, children;
	vdev_stat_t *vs;

	assert(activity == ZPOOL_WAIT_INITIALIZE \|\|
	activity == ZPOOL_WAIT_TRIM);

	verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
	(uint64_t **)&vs, &c) == 0);

	if (activity == ZPOOL_WAIT_INITIALIZE &&
	vs->vs_initialize_state == VDEV_INITIALIZE_ACTIVE)
	bytes_remaining = vs->vs_initialize_bytes_est -
	vs->vs_initialize_bytes_done;
	else if (activity == ZPOOL_WAIT_TRIM &&
	vs->vs_trim_state == VDEV_TRIM_ACTIVE)
	bytes_remaining = vs->vs_trim_bytes_est -
	vs->vs_trim_bytes_done;
	else
	bytes_remaining = 0;

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
	&child, &children) != 0)
	children = 0;

	for (c = 0; c < children; c++)
	bytes_remaining += vdev_activity_remaining(child[c], activity);

	return (bytes_remaining);
	}

	/* Add up the total number of bytes left to rebuild across top-level vdevs */
	static uint64_t
	vdev_activity_top_remaining(nvlist_t *nv)
	{
	uint64_t bytes_remaining = 0;
	nvlist_t **child;
	uint_t children;
	int error;

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
	&child, &children) != 0)
	children = 0;

	for (uint_t c = 0; c < children; c++) {
	vdev_rebuild_stat_t *vrs;
	uint_t i;

	error = nvlist_lookup_uint64_array(child[c],
	ZPOOL_CONFIG_REBUILD_STATS, (uint64_t **)&vrs, &i);
	if (error == 0) {
	if (vrs->vrs_state == VDEV_REBUILD_ACTIVE) {
	bytes_remaining += (vrs->vrs_bytes_est -
	vrs->vrs_bytes_rebuilt);
	}
	}
	}

	return (bytes_remaining);
	}

	/* Whether any vdevs are 'spare' or 'replacing' vdevs */
	static boolean_t
	vdev_any_spare_replacing(nvlist_t *nv)
	{
	nvlist_t **child;
	uint_t c, children;
	char *vdev_type;

	(void) nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &vdev_type);

	if (strcmp(vdev_type, VDEV_TYPE_REPLACING) == 0 \|\|
	strcmp(vdev_type, VDEV_TYPE_SPARE) == 0 \|\|
	strcmp(vdev_type, VDEV_TYPE_DRAID_SPARE) == 0) {
	return (B_TRUE);
	}

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
	&child, &children) != 0)
	children = 0;

	for (c = 0; c < children; c++) {
	if (vdev_any_spare_replacing(child[c]))
	return (B_TRUE);
	}

	return (B_FALSE);
	}

	typedef struct wait_data {
	char *wd_poolname;
	boolean_t wd_scripted;
	boolean_t wd_exact;
	boolean_t wd_headers_once;
	boolean_t wd_should_exit;
	/* Which activities to wait for */
	boolean_t wd_enabled[ZPOOL_WAIT_NUM_ACTIVITIES];
	float wd_interval;
	pthread_cond_t wd_cv;
	pthread_mutex_t wd_mutex;
	} wait_data_t;

	/*
	* Print to stdout a single line, containing one column for each activity that
	* we are waiting for specifying how many bytes of work are left for that
	* activity.
	*/
	static void
	print_wait_status_row(wait_data_t wd, zpool_handle_t zhp, int row)
	{
	nvlist_t config, nvroot;
	uint_t c;
	int i;
	pool_checkpoint_stat_t *pcs = NULL;
	pool_scan_stat_t *pss = NULL;
	pool_removal_stat_t *prs = NULL;
	char *headers[] = {"DISCARD", "FREE", "INITIALIZE", "REPLACE",
	"REMOVE", "RESILVER", "SCRUB", "TRIM"};
	int col_widths[ZPOOL_WAIT_NUM_ACTIVITIES];

	/* Calculate the width of each column */
	for (i = 0; i < ZPOOL_WAIT_NUM_ACTIVITIES; i++) {
	/*
	* Make sure we have enough space in the col for pretty-printed
	* numbers and for the column header, and then leave a couple
	* spaces between cols for readability.
	*/
	col_widths[i] = MAX(strlen(headers[i]), 6) + 2;
	}

	/* Print header if appropriate */
	int term_height = terminal_height();
	boolean_t reprint_header = (!wd->wd_headers_once && term_height > 0 &&
	row % (term_height-1) == 0);
	if (!wd->wd_scripted && (row == 0 \|\| reprint_header)) {
	for (i = 0; i < ZPOOL_WAIT_NUM_ACTIVITIES; i++) {
	if (wd->wd_enabled[i])
	(void) printf("%*s", col_widths[i], headers[i]);
	}
	(void) printf("\n");
	}

	/* Bytes of work remaining in each activity */
	int64_t bytes_rem[ZPOOL_WAIT_NUM_ACTIVITIES] = {0};

	bytes_rem[ZPOOL_WAIT_FREE] =
	zpool_get_prop_int(zhp, ZPOOL_PROP_FREEING, NULL);

	config = zpool_get_config(zhp, NULL);
	nvroot = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE);

	(void) nvlist_lookup_uint64_array(nvroot,
	ZPOOL_CONFIG_CHECKPOINT_STATS, (uint64_t **)&pcs, &c);
	if (pcs != NULL && pcs->pcs_state == CS_CHECKPOINT_DISCARDING)
	bytes_rem[ZPOOL_WAIT_CKPT_DISCARD] = pcs->pcs_space;

	(void) nvlist_lookup_uint64_array(nvroot,
	ZPOOL_CONFIG_REMOVAL_STATS, (uint64_t **)&prs, &c);
	if (prs != NULL && prs->prs_state == DSS_SCANNING)
	bytes_rem[ZPOOL_WAIT_REMOVE] = prs->prs_to_copy -
	prs->prs_copied;

	(void) nvlist_lookup_uint64_array(nvroot,
	ZPOOL_CONFIG_SCAN_STATS, (uint64_t **)&pss, &c);
	if (pss != NULL && pss->pss_state == DSS_SCANNING &&
	pss->pss_pass_scrub_pause == 0) {
	int64_t rem = pss->pss_to_examine - pss->pss_issued;
	if (pss->pss_func == POOL_SCAN_SCRUB)
	bytes_rem[ZPOOL_WAIT_SCRUB] = rem;
	else
	bytes_rem[ZPOOL_WAIT_RESILVER] = rem;
	} else if (check_rebuilding(nvroot, NULL)) {
	bytes_rem[ZPOOL_WAIT_RESILVER] =
	vdev_activity_top_remaining(nvroot);
	}

	bytes_rem[ZPOOL_WAIT_INITIALIZE] =
	vdev_activity_remaining(nvroot, ZPOOL_WAIT_INITIALIZE);
	bytes_rem[ZPOOL_WAIT_TRIM] =
	vdev_activity_remaining(nvroot, ZPOOL_WAIT_TRIM);

	/*
	* A replace finishes after resilvering finishes, so the amount of work
	* left for a replace is the same as for resilvering.
	*
	* It isn't quite correct to say that if we have any 'spare' or
	* 'replacing' vdevs and a resilver is happening, then a replace is in
	* progress, like we do here. When a hot spare is used, the faulted vdev
	* is not removed after the hot spare is resilvered, so parent 'spare'
	* vdev is not removed either. So we could have a 'spare' vdev, but be
	* resilvering for a different reason. However, we use it as a heuristic
	* because we don't have access to the DTLs, which could tell us whether
	* or not we have really finished resilvering a hot spare.
	*/
	if (vdev_any_spare_replacing(nvroot))
	bytes_rem[ZPOOL_WAIT_REPLACE] = bytes_rem[ZPOOL_WAIT_RESILVER];

	if (timestamp_fmt != NODATE)
	print_timestamp(timestamp_fmt);

	for (i = 0; i < ZPOOL_WAIT_NUM_ACTIVITIES; i++) {
	char buf[64];
	if (!wd->wd_enabled[i])
	continue;

	if (wd->wd_exact)
	(void) snprintf(buf, sizeof (buf), "%" PRIi64,
	bytes_rem[i]);
	else
	zfs_nicenum(bytes_rem[i], buf, sizeof (buf));

	if (wd->wd_scripted)
	(void) printf(i == 0 ? "%s" : "\t%s", buf);
	else
	(void) printf(" %*s", col_widths[i] - 1, buf);
	}
	(void) printf("\n");
	(void) fflush(stdout);
	}

	static void *
	wait_status_thread(void *arg)
	{
	wait_data_t wd = (wait_data_t )arg;
	zpool_handle_t *zhp;

	if ((zhp = zpool_open(g_zfs, wd->wd_poolname)) == NULL)
	return (void *)(1);

	for (int row = 0; ; row++) {
	boolean_t missing;
	struct timespec timeout;
	int ret = 0;
	(void) clock_gettime(CLOCK_REALTIME, &timeout);

	if (zpool_refresh_stats(zhp, &missing) != 0 \|\| missing \|\|
	zpool_props_refresh(zhp) != 0) {
	zpool_close(zhp);
	return (void *)(uintptr_t)(missing ? 0 : 1);
	}

	print_wait_status_row(wd, zhp, row);

	timeout.tv_sec += floor(wd->wd_interval);
	long nanos = timeout.tv_nsec +
	(wd->wd_interval - floor(wd->wd_interval)) * NANOSEC;
	if (nanos >= NANOSEC) {
	timeout.tv_sec++;
	timeout.tv_nsec = nanos - NANOSEC;
	} else {
	timeout.tv_nsec = nanos;
	}
	pthread_mutex_lock(&wd->wd_mutex);
	if (!wd->wd_should_exit)
	ret = pthread_cond_timedwait(&wd->wd_cv, &wd->wd_mutex,
	&timeout);
	pthread_mutex_unlock(&wd->wd_mutex);
	if (ret == 0) {
	break; /* signaled by main thread */
	} else if (ret != ETIMEDOUT) {
	(void) fprintf(stderr, gettext("pthread_cond_timedwait "
	"failed: %s\n"), strerror(ret));
	zpool_close(zhp);
	return (void *)(uintptr_t)(1);
	}
	}

	zpool_close(zhp);
	return (void *)(0);
	}

	int
	zpool_do_wait(int argc, char **argv)
	{
	boolean_t verbose = B_FALSE;
	int c;
	char *value;
	int i;
	unsigned long count;
	pthread_t status_thr;
	int error = 0;
	zpool_handle_t *zhp;

	wait_data_t wd;
	wd.wd_scripted = B_FALSE;
	wd.wd_exact = B_FALSE;
	wd.wd_headers_once = B_FALSE;
	wd.wd_should_exit = B_FALSE;

	pthread_mutex_init(&wd.wd_mutex, NULL);
	pthread_cond_init(&wd.wd_cv, NULL);

	/* By default, wait for all types of activity. */
	for (i = 0; i < ZPOOL_WAIT_NUM_ACTIVITIES; i++)
	wd.wd_enabled[i] = B_TRUE;

	while ((c = getopt(argc, argv, "HpT:t:")) != -1) {
	switch (c) {
	case 'H':
	wd.wd_scripted = B_TRUE;
	break;
	case 'n':
	wd.wd_headers_once = B_TRUE;
	break;
	case 'p':
	wd.wd_exact = B_TRUE;
	break;
	case 'T':
	get_timestamp_arg(*optarg);
	break;
	case 't':
	{
	static char *col_subopts[] = { "discard", "free",
	"initialize", "replace", "remove", "resilver",
	"scrub", "trim", NULL };

	/* Reset activities array */
	bzero(&wd.wd_enabled, sizeof (wd.wd_enabled));
	while (*optarg != '\0') {
	int activity = getsubopt(&optarg, col_subopts,
	&value);

	if (activity < 0) {
	(void) fprintf(stderr,
	gettext("invalid activity '%s'\n"),
	value);
	usage(B_FALSE);
	}

	wd.wd_enabled[activity] = B_TRUE;
	}
	break;
	}
	case '?':
	(void) fprintf(stderr, gettext("invalid option '%c'\n"),
	optopt);
	usage(B_FALSE);
	}
	}

	argc -= optind;
	argv += optind;

	get_interval_count(&argc, argv, &wd.wd_interval, &count);
	if (count != 0) {
	/* This subcmd only accepts an interval, not a count */
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	if (wd.wd_interval != 0)
	verbose = B_TRUE;

	if (argc < 1) {
	(void) fprintf(stderr, gettext("missing 'pool' argument\n"));
	usage(B_FALSE);
	}
	if (argc > 1) {
	(void) fprintf(stderr, gettext("too many arguments\n"));
	usage(B_FALSE);
	}

	wd.wd_poolname = argv[0];

	if ((zhp = zpool_open(g_zfs, wd.wd_poolname)) == NULL)
	return (1);

	if (verbose) {
	/*
	* We use a separate thread for printing status updates because
	* the main thread will call lzc_wait(), which blocks as long
	* as an activity is in progress, which can be a long time.
	*/
	if (pthread_create(&status_thr, NULL, wait_status_thread, &wd)
	!= 0) {
	(void) fprintf(stderr, gettext("failed to create status"
	"thread: %s\n"), strerror(errno));
	zpool_close(zhp);
	return (1);
	}
	}

	/*
	* Loop over all activities that we are supposed to wait for until none
	* of them are in progress. Note that this means we can end up waiting
	* for more activities to complete than just those that were in progress
	* when we began waiting; if an activity we are interested in begins
	* while we are waiting for another activity, we will wait for both to
	* complete before exiting.
	*/
	for (;;) {
	boolean_t missing = B_FALSE;
	boolean_t any_waited = B_FALSE;

	for (i = 0; i < ZPOOL_WAIT_NUM_ACTIVITIES; i++) {
	boolean_t waited;

	if (!wd.wd_enabled[i])
	continue;

	error = zpool_wait_status(zhp, i, &missing, &waited);
	if (error != 0 \|\| missing)
	break;

	any_waited = (any_waited \|\| waited);
	}

	if (error != 0 \|\| missing \|\| !any_waited)
	break;
	}

	zpool_close(zhp);

	if (verbose) {
	uintptr_t status;
	pthread_mutex_lock(&wd.wd_mutex);
	wd.wd_should_exit = B_TRUE;
	pthread_cond_signal(&wd.wd_cv);
	pthread_mutex_unlock(&wd.wd_mutex);
	(void) pthread_join(status_thr, (void *)&status);
	if (status != 0)
	error = status;
	}

	pthread_mutex_destroy(&wd.wd_mutex);
	pthread_cond_destroy(&wd.wd_cv);
	return (error);
	}

	static int
	find_command_idx(char command, int idx)
	{
	int i;

	for (i = 0; i < NCOMMAND; i++) {
	if (command_table[i].name == NULL)
	continue;

	if (strcmp(command, command_table[i].name) == 0) {
	*idx = i;
	return (0);
	}
	}
	return (1);
	}

	/*
	* Display version message
	*/
	static int
	zpool_do_version(int argc, char **argv)
	{
	if (zfs_version_print() == -1)
	return (1);

	return (0);
	}

	/*
	* Do zpool_load_compat() and print error message on failure
	*/
	static zpool_compat_status_t
	zpool_do_load_compat(const char compat, boolean_t list)
	{
	char report[1024];

	zpool_compat_status_t ret;

	ret = zpool_load_compat(compat, list, report, 1024);
	switch (ret) {

	case ZPOOL_COMPATIBILITY_OK:
	break;

	case ZPOOL_COMPATIBILITY_NOFILES:
	case ZPOOL_COMPATIBILITY_BADFILE:
	case ZPOOL_COMPATIBILITY_BADTOKEN:
	(void) fprintf(stderr, "Error: %s\n", report);
	break;

	case ZPOOL_COMPATIBILITY_WARNTOKEN:
	(void) fprintf(stderr, "Warning: %s\n", report);
	ret = ZPOOL_COMPATIBILITY_OK;
	break;
	}
	return (ret);
	}

	int
	main(int argc, char **argv)
	{
	int ret = 0;
	int i = 0;
	char *cmdname;
	char **newargv;

	(void) setlocale(LC_ALL, "");
	(void) setlocale(LC_NUMERIC, "C");
	(void) textdomain(TEXT_DOMAIN);
	srand(time(NULL));

	opterr = 0;

	/*
	* Make sure the user has specified some command.
	*/
	if (argc < 2) {
	(void) fprintf(stderr, gettext("missing command\n"));
	usage(B_FALSE);
	}

	cmdname = argv[1];

	/*
	* Special case '-?'
	*/
	if ((strcmp(cmdname, "-?") == 0) \|\| strcmp(cmdname, "--help") == 0)
	usage(B_TRUE);

	/*
	* Special case '-V\|--version'
	*/
	if ((strcmp(cmdname, "-V") == 0) \|\| (strcmp(cmdname, "--version") == 0))
	return (zpool_do_version(argc, argv));

	if ((g_zfs = libzfs_init()) == NULL) {
	(void) fprintf(stderr, "%s\n", libzfs_error_init(errno));
	return (1);
	}

	libzfs_print_on_error(g_zfs, B_TRUE);

	zfs_save_arguments(argc, argv, history_str, sizeof (history_str));

	/*
	* Many commands modify input strings for string parsing reasons.
	* We create a copy to protect the original argv.
	*/
	newargv = malloc((argc + 1) * sizeof (newargv[0]));
	for (i = 0; i < argc; i++)
	newargv[i] = strdup(argv[i]);
	newargv[argc] = NULL;

	/*
	* Run the appropriate command.
	*/
	if (find_command_idx(cmdname, &i) == 0) {
	current_command = &command_table[i];
	ret = command_table[i].func(argc - 1, newargv + 1);
	} else if (strchr(cmdname, '=')) {
	verify(find_command_idx("set", &i) == 0);
	current_command = &command_table[i];
	ret = command_table[i].func(argc, newargv);
	} else if (strcmp(cmdname, "freeze") == 0 && argc == 3) {
	/*
	* 'freeze' is a vile debugging abomination, so we treat
	* it as such.
	*/
	zfs_cmd_t zc = {"\0"};

	(void) strlcpy(zc.zc_name, argv[2], sizeof (zc.zc_name));
	ret = zfs_ioctl(g_zfs, ZFS_IOC_POOL_FREEZE, &zc);
	if (ret != 0) {
	(void) fprintf(stderr,
	gettext("failed to freeze pool: %d\n"), errno);
	ret = 1;
	}

	log_history = 0;
	} else {
	(void) fprintf(stderr, gettext("unrecognized "
	"command '%s'\n"), cmdname);
	usage(B_FALSE);
	ret = 1;
	}

	for (i = 0; i < argc; i++)
	free(newargv[i]);
	free(newargv);

	if (ret == 0 && log_history)
	(void) zpool_log_history(g_zfs, history_str);

	libzfs_fini(g_zfs);

	/*
	* The 'ZFS_ABORT' environment variable causes us to dump core on exit
	* for the purposes of running ::findleaks.
	*/
	if (getenv("ZFS_ABORT") != NULL) {
	(void) printf("dumping core by request\n");
	abort();
	}

	return (ret);
	}
	diff --git a/sys/contrib/openzfs/cmd/zpool_influxdb/dashboards/grafana/ZFS-pool-latency-heatmaps-influxdb.json b/sys/contrib/openzfs/cmd/zpool_influxdb/dashboards/grafana/ZFS-pool-latency-heatmaps-influxdb.json
	index a99f92783bc4..70260ae40814 100644
	--- a/sys/contrib/openzfs/cmd/zpool_influxdb/dashboards/grafana/ZFS-pool-latency-heatmaps-influxdb.json
	+++ b/sys/contrib/openzfs/cmd/zpool_influxdb/dashboards/grafana/ZFS-pool-latency-heatmaps-influxdb.json
	@@ -1,1667 +1,1667 @@
	{
	"__inputs": [
	{
	"name": "DS_MACBOOK-INFLUX",
	"label": "macbook-influx",
	"description": "",
	"type": "datasource",
	"pluginId": "influxdb",
	"pluginName": "InfluxDB"
	}
	],
	"__requires": [
	{
	"type": "grafana",
	"id": "grafana",
	"name": "Grafana",
	"version": "6.7.3"
	},
	{
	"type": "panel",
	"id": "heatmap",
	"name": "Heatmap",
	"version": ""
	},
	{
	"type": "datasource",
	"id": "influxdb",
	"name": "InfluxDB",
	"version": "1.0.0"
	},
	{
	"type": "panel",
	"id": "jdbranham-diagram-panel",
	"name": "Diagram",
	"version": "1.4.5"
	},
	{
	"type": "panel",
	"id": "text",
	"name": "Text",
	"version": ""
	}
	],
	"annotations": {
	"list": [
	{
	"$$hashKey": "object:1627",
	"builtIn": 1,
	"datasource": "-- Grafana --",
	"enable": true,
	"hide": true,
	"iconColor": "rgba(0, 211, 255, 1)",
	"name": "Annotations & Alerts",
	"type": "dashboard"
	}
	]
	},
	"description": "Top-level ZFS pool latency by ZIO type",
	"editable": true,
	"gnetId": null,
	"graphTooltip": 1,
	"id": null,
	"iteration": 1590445168391,
	"links": [],
	"panels": [
	{
	"collapsed": false,
	"datasource": "${DS_MACBOOK-INFLUX}",
	"gridPos": {
	"h": 1,
	"w": 24,
	"x": 0,
	"y": 0
	},
	"id": 5,
	"panels": [],
	"title": "Total Reads and Writes",
	"type": "row"
	},
	{
	"cards": {
	"cardPadding": null,
	"cardRound": null
	},
	"color": {
	"cardColor": "#b4ff00",
	"colorScale": "sqrt",
	"colorScheme": "interpolateOranges",
	"exponent": 0.5,
	"mode": "spectrum"
	},
	"dataFormat": "tsbuckets",
	"datasource": "${DS_MACBOOK-INFLUX}",
	"description": "Latency histogram for the total reads of a ZFS pool",
	"fieldConfig": {
	"defaults": {
	"custom": {}
	},
	"overrides": []
	},
	"gridPos": {
	"h": 9,
	"w": 12,
	"x": 0,
	"y": 1
	},
	"heatmap": {},
	"hideZeroBuckets": false,
	"highlightCards": true,
	"id": 2,
	"legend": {
	"show": true
	},
	"reverseYBuckets": false,
	"targets": [
	{
	"alias": "$tag_le",
	"groupBy": [
	{
	"params": [
	"$__interval"
	],
	"type": "time"
	},
	{
	"params": [
	"le"
	],
	"type": "tag"
	},
	{
	"params": [
	"null"
	],
	"type": "fill"
	}
	],
	"measurement": "zpool_latency",
	"orderByTime": "ASC",
	"policy": "default",
	"refId": "A",
	"resultFormat": "time_series",
	"select": [
	[
	{
	"params": [
	"total_read"
	],
	"type": "field"
	},
	{
	"params": [],
	"type": "last"
	},
	{
	"params": [
	"1s"
	],
	"type": "non_negative_derivative"
	}
	]
	],
	"tags": [
	{
	"key": "host",
	"operator": "=~",
	"value": "/^$hostname$/"
	},
	{
	"condition": "AND",
	"key": "name",
	"operator": "=~",
	"value": "/^$poolname$/"
	}
	]
	}
	],
	"timeFrom": null,
	"timeShift": null,
	"title": "Total Reads",
	"tooltip": {
	"show": true,
	"showHistogram": true
	},
	"type": "heatmap",
	"xAxis": {
	"show": true
	},
	"xBucketNumber": null,
	"xBucketSize": null,
	"yAxis": {
	"decimals": 0,
	"format": "s",
	"logBase": 1,
	"max": null,
	"min": null,
	"show": true,
	"splitFactor": null
	},
	"yBucketBound": "auto",
	"yBucketNumber": null,
	"yBucketSize": null
	},
	{
	"cards": {
	"cardPadding": null,
	"cardRound": null
	},
	"color": {
	"cardColor": "#b4ff00",
	"colorScale": "sqrt",
	"colorScheme": "interpolateOranges",
	"exponent": 0.5,
	"mode": "spectrum"
	},
	"dataFormat": "tsbuckets",
	"datasource": "${DS_MACBOOK-INFLUX}",
	"description": "Latency histogram for the total writes of a ZFS pool",
	"fieldConfig": {
	"defaults": {
	"custom": {}
	},
	"overrides": []
	},
	"gridPos": {
	"h": 9,
	"w": 12,
	"x": 12,
	"y": 1
	},
	"heatmap": {},
	"hideZeroBuckets": false,
	"highlightCards": true,
	"id": 3,
	"legend": {
	"show": true
	},
	"reverseYBuckets": false,
	"targets": [
	{
	"alias": "$tag_le",
	"groupBy": [
	{
	"params": [
	"$__interval"
	],
	"type": "time"
	},
	{
	"params": [
	"le"
	],
	"type": "tag"
	},
	{
	"params": [
	"null"
	],
	"type": "fill"
	}
	],
	"measurement": "zpool_latency",
	"orderByTime": "ASC",
	"policy": "default",
	"refId": "A",
	"resultFormat": "time_series",
	"select": [
	[
	{
	"params": [
	"total_write"
	],
	"type": "field"
	},
	{
	"params": [],
	"type": "last"
	},
	{
	"params": [
	"1s"
	],
	"type": "non_negative_derivative"
	}
	]
	],
	"tags": [
	{
	"key": "host",
	"operator": "=~",
	"value": "/^$hostname$/"
	},
	{
	"condition": "AND",
	"key": "name",
	"operator": "=~",
	"value": "/^$poolname$/"
	}
	]
	}
	],
	"timeFrom": null,
	"timeShift": null,
	"title": "Total Writes",
	"tooltip": {
	"show": true,
	"showHistogram": true
	},
	"type": "heatmap",
	"xAxis": {
	"show": true
	},
	"xBucketNumber": null,
	"xBucketSize": null,
	"yAxis": {
	"decimals": 0,
	"format": "s",
	"logBase": 1,
	"max": null,
	"min": null,
	"show": true,
	"splitFactor": null
	},
	"yBucketBound": "auto",
	"yBucketNumber": null,
	"yBucketSize": null
	},
	{
	"collapsed": false,
	"datasource": "${DS_MACBOOK-INFLUX}",
	"gridPos": {
	"h": 1,
	"w": 24,
	"x": 0,
	"y": 10
	},
	"id": 8,
	"panels": [],
	"title": "ZIO Scheduler Queues for Read Operations",
	"type": "row"
	},
	{
	"cards": {
	"cardPadding": null,
	"cardRound": null
	},
	"color": {
	"cardColor": "#b4ff00",
	"colorScale": "sqrt",
	"colorScheme": "interpolateOranges",
	"exponent": 0.5,
	"mode": "spectrum"
	},
	"dataFormat": "tsbuckets",
	"datasource": "${DS_MACBOOK-INFLUX}",
	"description": "Latency histogram for the synchronous reads of a ZFS pool",
	"fieldConfig": {
	"defaults": {
	"custom": {}
	},
	"overrides": []
	},
	"gridPos": {
	"h": 8,
	"w": 5,
	"x": 0,
	"y": 11
	},
	"heatmap": {},
	"hideZeroBuckets": false,
	"highlightCards": true,
	"id": 6,
	"legend": {
	"show": false
	},
	"reverseYBuckets": false,
	"targets": [
	{
	"alias": "$tag_le",
	"groupBy": [
	{
	"params": [
	"$__interval"
	],
	"type": "time"
	},
	{
	"params": [
	"le"
	],
	"type": "tag"
	},
	{
	"params": [
	"null"
	],
	"type": "fill"
	}
	],
	"measurement": "zpool_latency",
	"orderByTime": "ASC",
	"policy": "default",
	"refId": "A",
	"resultFormat": "time_series",
	"select": [
	[
	{
	"params": [
	"sync_read"
	],
	"type": "field"
	},
	{
	"params": [],
	"type": "last"
	},
	{
	"params": [
	"1s"
	],
	"type": "non_negative_derivative"
	}
	]
	],
	"tags": [
	{
	"key": "host",
	"operator": "=~",
	"value": "/^$hostname$/"
	},
	{
	"condition": "AND",
	"key": "name",
	"operator": "=~",
	"value": "/^$poolname$/"
	}
	]
	}
	],
	"timeFrom": null,
	"timeShift": null,
	"title": "Sync Read Queue",
	"tooltip": {
	"show": true,
	"showHistogram": true
	},
	"type": "heatmap",
	"xAxis": {
	"show": true
	},
	"xBucketNumber": null,
	"xBucketSize": null,
	"yAxis": {
	"decimals": 0,
	"format": "s",
	"logBase": 1,
	"max": null,
	"min": null,
	"show": true,
	"splitFactor": null
	},
	"yBucketBound": "auto",
	"yBucketNumber": null,
	"yBucketSize": null
	},
	{
	"cards": {
	"cardPadding": null,
	"cardRound": null
	},
	"color": {
	"cardColor": "#b4ff00",
	"colorScale": "sqrt",
	"colorScheme": "interpolateOranges",
	"exponent": 0.5,
	"mode": "spectrum"
	},
	"dataFormat": "tsbuckets",
	"datasource": "${DS_MACBOOK-INFLUX}",
	"description": "Latency histogram for the asynchronous reads of a ZFS pool",
	"fieldConfig": {
	"defaults": {
	"custom": {}
	},
	"overrides": []
	},
	"gridPos": {
	"h": 8,
	"w": 5,
	"x": 5,
	"y": 11
	},
	"heatmap": {},
	"hideZeroBuckets": false,
	"highlightCards": true,
	"id": 9,
	"legend": {
	"show": false
	},
	"reverseYBuckets": false,
	"targets": [
	{
	"alias": "$tag_le",
	"groupBy": [
	{
	"params": [
	"$__interval"
	],
	"type": "time"
	},
	{
	"params": [
	"le"
	],
	"type": "tag"
	},
	{
	"params": [
	"null"
	],
	"type": "fill"
	}
	],
	"measurement": "zpool_latency",
	"orderByTime": "ASC",
	"policy": "default",
	"refId": "A",
	"resultFormat": "time_series",
	"select": [
	[
	{
	"params": [
	"async_read"
	],
	"type": "field"
	},
	{
	"params": [],
	"type": "last"
	},
	{
	"params": [
	"1s"
	],
	"type": "non_negative_derivative"
	}
	]
	],
	"tags": [
	{
	"key": "host",
	"operator": "=~",
	"value": "/^$hostname$/"
	},
	{
	"condition": "AND",
	"key": "name",
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	+ "content": "I/O requests that are satisfied by accessing pool devices are managed by the ZIO scheduler.\nThe total latency is measured from the start of the I/O to completion by the disk.\nLatency through each queue is shown prior to its submission to the disk queue.\n\nThis view is useful for observing the effects of tuning the ZIO scheduler min and max values\n(see zfs(4) and [ZFS on Linux Module Parameters](https://openzfs.github.io/openzfs-docs/Performance%20and%20tuning/ZFS%20on%20Linux%20Module%20Parameters.html)):\n+ zfs_vdev_max_active controls the ZIO scheduler's disk queue depth (do not confuse with the block device's nr_requests)\n+ zfs_vdev_sync_read_min_active and zfs_vdev_sync_read_max_active control the synchronous queue for reads: most reads are sync\n+ zfs_vdev_sync_write_min_active and zfs_vdev_sync_write_max_active control the synchronous queue for writes: \nusually metadata or user data depending on the \"sync\" property setting or I/Os that are requested to be flushed\n+ zfs_vdev_async_read_min_active and zfs_vdev_async_read_max_active control the asynchronous queue for reads: usually prefetches\n+ zfs_vdev_async_write_min_active and zfs_vdev_async_write_max_active control the asynchronous queue for writes: \nusually the bulk of all writes at transaction group (txg) commit\n+ zfs_vdev_scrub_min_active and zfs_vdev_scrub_max_active controls the scan reads: usually scrub or resilver\n\n",
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	},
	{
	"$$hashKey": "object:156",
	"name": "range to text",
	"value": 2
	}
	],
	"maxDataPoints": 100,
	"maxWidth": false,
	"mermaidServiceUrl": "",
	"metricCharacterReplacements": [],
	"moddedSeriesVal": 0,
	"mode": "content",
	"nullPointMode": "connected",
	"seriesOverrides": [],
	"style": "",
	"styleValues": {},
	"targets": [
	{
	"groupBy": [
	{
	"params": [
	"$__interval"
	],
	"type": "time"
	},
	{
	"params": [
	"null"
	],
	"type": "fill"
	}
	],
	"hide": true,
	"orderByTime": "ASC",
	"policy": "default",
	"refId": "A",
	"resultFormat": "time_series",
	"select": [
	[
	{
	"params": [
	"value"
	],
	"type": "field"
	},
	{
	"params": [],
	"type": "mean"
	}
	]
	],
	"tags": []
	}
	],
	"themes": [
	"default",
	"dark",
	"forest",
	"neutral"
	],
	"thresholds": "0,10",
	"timeFrom": null,
	"timeShift": null,
	"title": "Panel Title",
	"type": "jdbranham-diagram-panel",
	"valueMaps": [
	{
	"$$hashKey": "object:151",
	"op": "=",
	"text": "N/A",
	"value": "null"
	}
	],
	"valueName": "avg",
	"valueOptions": [
	"avg",
	"min",
	"max",
	"total",
	"current"
	]
	}
	],
	"refresh": false,
	"schemaVersion": 22,
	"style": "dark",
	"tags": [
	"ZFS",
	"Latency",
	"Histogram"
	],
	"templating": {
	"list": [
	{
	"allValue": null,
	"current": {},
	"datasource": "${DS_MACBOOK-INFLUX}",
	"definition": "show tag values from \"zpool_latency\" with key = \"host\"",
	"hide": 0,
	"includeAll": false,
	"index": -1,
	"label": null,
	"multi": false,
	"name": "hostname",
	"options": [],
	"query": "show tag values from \"zpool_latency\" with key = \"host\"",
	"refresh": 1,
	"regex": "/([-a-zA-Z-0-9]+)/",
	"skipUrlSync": false,
	"sort": 5,
	"tagValuesQuery": "",
	"tags": [],
	"tagsQuery": "",
	"type": "query",
	"useTags": false
	},
	{
	"allValue": null,
	"current": {},
	"datasource": "${DS_MACBOOK-INFLUX}",
	"definition": "show tag values from \"zpool_latency\" with key = \"name\" where \"host\" =~ /^$hostname/",
	"hide": 0,
	"includeAll": false,
	"index": -1,
	"label": null,
	"multi": false,
	"name": "poolname",
	"options": [],
	"query": "show tag values from \"zpool_latency\" with key = \"name\" where \"host\" =~ /^$hostname/",
	"refresh": 1,
	"regex": "",
	"skipUrlSync": false,
	"sort": 5,
	"tagValuesQuery": "",
	"tags": [],
	"tagsQuery": "",
	"type": "query",
	"useTags": false
	}
	]
	},
	"time": {
	"from": "2020-05-25T21:34:30.137Z",
	"to": "2020-05-25T21:39:54.445Z"
	},
	"timepicker": {
	"refresh_intervals": [
	"10s",
	"30s",
	"1m",
	"5m",
	"15m",
	"30m",
	"1h",
	"2h",
	"1d"
	]
	},
	"timezone": "",
	"title": "ZFS Pool Latency Heatmaps Influxdb",
	"uid": "TbB4-DkGz",
	"variables": {
	"list": []
	},
	"version": 2
	-}
	\ No newline at end of file
	+}
	diff --git a/sys/contrib/openzfs/config/Rules.am b/sys/contrib/openzfs/config/Rules.am
	index ef10d493896d..8fe2fa9ca8d9 100644
	--- a/sys/contrib/openzfs/config/Rules.am
	+++ b/sys/contrib/openzfs/config/Rules.am
	@@ -1,65 +1,68 @@
	#
	# Default build rules for all user space components, every Makefile.am
	# should include these rules and override or extend them as needed.
	#

	PHONY =
	DEFAULT_INCLUDES = \
	-include $(top_builddir)/zfs_config.h \
	-I$(top_builddir)/include \
	-I$(top_srcdir)/include \
	-I$(top_srcdir)/module/icp/include \
	-I$(top_srcdir)/lib/libspl/include

	if BUILD_LINUX
	DEFAULT_INCLUDES += \
	-I$(top_srcdir)/lib/libspl/include/os/linux
	endif

	if BUILD_FREEBSD
	DEFAULT_INCLUDES += \
	-I$(top_srcdir)/lib/libspl/include/os/freebsd
	endif

	AM_LIBTOOLFLAGS = --silent

	AM_CFLAGS = -std=gnu99 -Wall -Wstrict-prototypes -Wmissing-prototypes
	AM_CFLAGS += -fno-strict-aliasing
	AM_CFLAGS += $(NO_OMIT_FRAME_POINTER)
	AM_CFLAGS += $(DEBUG_CFLAGS)
	AM_CFLAGS += $(ASAN_CFLAGS)
	AM_CFLAGS += $(CODE_COVERAGE_CFLAGS) $(NO_FORMAT_ZERO_LENGTH)
	if BUILD_FREEBSD
	AM_CFLAGS += -fPIC -Werror -Wno-unknown-pragmas -Wno-enum-conversion
	AM_CFLAGS += -include $(top_srcdir)/include/os/freebsd/spl/sys/ccompile.h
	AM_CFLAGS += -I/usr/include -I/usr/local/include
	endif

	AM_CPPFLAGS = -D_GNU_SOURCE
	AM_CPPFLAGS += -D_REENTRANT
	AM_CPPFLAGS += -D_FILE_OFFSET_BITS=64
	AM_CPPFLAGS += -D_LARGEFILE64_SOURCE
	AM_CPPFLAGS += -DHAVE_LARGE_STACKS=1
	AM_CPPFLAGS += -DLIBEXECDIR=\"$(libexecdir)\"
	AM_CPPFLAGS += -DRUNSTATEDIR=\"$(runstatedir)\"
	AM_CPPFLAGS += -DSBINDIR=\"$(sbindir)\"
	AM_CPPFLAGS += -DSYSCONFDIR=\"$(sysconfdir)\"
	AM_CPPFLAGS += -DPKGDATADIR=\"$(pkgdatadir)\"
	AM_CPPFLAGS += $(DEBUG_CPPFLAGS)
	AM_CPPFLAGS += $(CODE_COVERAGE_CPPFLAGS)
	if BUILD_LINUX
	AM_CPPFLAGS += -DTEXT_DOMAIN=\"zfs-linux-user\"
	endif
	if BUILD_FREEBSD
	AM_CPPFLAGS += -DTEXT_DOMAIN=\"zfs-freebsd-user\"
	endif
	AM_CPPFLAGS += -D"strtok(...)=strtok(__VA_ARGS__) __attribute__((deprecated(\"Use strtok_r(3) instead!\")))"
	+AM_CPPFLAGS += -D"__xpg_basename(...)=__xpg_basename(__VA_ARGS__) __attribute__((deprecated(\"basename(3) is underspecified. Use zfs_basename() instead!\")))"
	+AM_CPPFLAGS += -D"basename(...)=basename(__VA_ARGS__) __attribute__((deprecated(\"basename(3) is underspecified. Use zfs_basename() instead!\")))"
	+AM_CPPFLAGS += -D"dirname(...)=dirname(__VA_ARGS__) __attribute__((deprecated(\"dirname(3) is underspecified. Use zfs_dirnamelen() instead!\")))"

	AM_LDFLAGS = $(DEBUG_LDFLAGS)
	AM_LDFLAGS += $(ASAN_LDFLAGS)

	if BUILD_FREEBSD
	AM_LDFLAGS += -fstack-protector-strong -shared
	AM_LDFLAGS += -Wl,-x -Wl,--fatal-warnings -Wl,--warn-shared-textrel
	AM_LDFLAGS += -lm
	endif
	diff --git a/sys/contrib/openzfs/config/always-pyzfs.m4 b/sys/contrib/openzfs/config/always-pyzfs.m4
	index 76e07b593df2..fa39fd88519c 100644
	--- a/sys/contrib/openzfs/config/always-pyzfs.m4
	+++ b/sys/contrib/openzfs/config/always-pyzfs.m4
	@@ -1,105 +1,120 @@
	dnl #
	dnl # ZFS_AC_PYTHON_MODULE(module_name, [action-if-true], [action-if-false])
	dnl #
	dnl # Checks for Python module. Freely inspired by AX_PYTHON_MODULE
	dnl # https://www.gnu.org/software/autoconf-archive/ax_python_module.html
	dnl # Required by ZFS_AC_CONFIG_ALWAYS_PYZFS.
	dnl #
	AC_DEFUN([ZFS_AC_PYTHON_MODULE], [
	PYTHON_NAME=$(basename $PYTHON)
	AC_MSG_CHECKING([for $PYTHON_NAME module: $1])
	AS_IF([$PYTHON -c "import $1" 2>/dev/null], [
	AC_MSG_RESULT(yes)
	m4_ifvaln([$2], [$2])
	], [
	AC_MSG_RESULT(no)
	m4_ifvaln([$3], [$3])
	])
	])

	dnl #
	dnl # Determines if pyzfs can be built, requires Python 2.7 or later.
	dnl #
	AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_PYZFS], [
	AC_ARG_ENABLE([pyzfs],
	AS_HELP_STRING([--enable-pyzfs],
	[install libzfs_core python bindings @<:@default=check@:>@]),
	[enable_pyzfs=$enableval],
	[enable_pyzfs=check])

	dnl #
	dnl # Packages for pyzfs specifically enabled/disabled.
	dnl #
	AS_IF([test "x$enable_pyzfs" != xcheck], [
	AS_IF([test "x$enable_pyzfs" = xyes], [
	DEFINE_PYZFS='--with pyzfs'
	], [
	DEFINE_PYZFS='--without pyzfs'
	])
	], [
	AS_IF([test "$PYTHON" != :], [
	DEFINE_PYZFS=''
	], [
	enable_pyzfs=no
	DEFINE_PYZFS='--without pyzfs'
	])
	])
	AC_SUBST(DEFINE_PYZFS)

	+ dnl #
	+ dnl # Python "packaging" (or, failing that, "distlib") module is required to build and install pyzfs
	+ dnl #
	+ AS_IF([test "x$enable_pyzfs" = xcheck -o "x$enable_pyzfs" = xyes], [
	+ ZFS_AC_PYTHON_MODULE([packaging], [], [
	+ ZFS_AC_PYTHON_MODULE([distlib], [], [
	+ AS_IF([test "x$enable_pyzfs" = xyes], [
	+ AC_MSG_ERROR("Python $PYTHON_VERSION packaging and distlib modules are not installed")
	+ ], [test "x$enable_pyzfs" != xno], [
	+ enable_pyzfs=no
	+ ])
	+ ])
	+ ])
	+ ])
	+
	dnl #
	dnl # Require python-devel libraries
	dnl #
	AS_IF([test "x$enable_pyzfs" = xcheck -o "x$enable_pyzfs" = xyes], [
	AS_CASE([$PYTHON_VERSION],
	[3.*], [PYTHON_REQUIRED_VERSION=">= '3.4.0'"],
	[2.*], [PYTHON_REQUIRED_VERSION=">= '2.7.0'"],
	[AC_MSG_ERROR("Python $PYTHON_VERSION unknown")]
	)

	AX_PYTHON_DEVEL([$PYTHON_REQUIRED_VERSION], [
	AS_IF([test "x$enable_pyzfs" = xyes], [
	AC_MSG_ERROR("Python $PYTHON_REQUIRED_VERSION development library is not installed")
	], [test "x$enable_pyzfs" != xno], [
	enable_pyzfs=no
	])
	])
	])

	dnl #
	dnl # Python "setuptools" module is required to build and install pyzfs
	dnl #
	AS_IF([test "x$enable_pyzfs" = xcheck -o "x$enable_pyzfs" = xyes], [
	ZFS_AC_PYTHON_MODULE([setuptools], [], [
	AS_IF([test "x$enable_pyzfs" = xyes], [
	AC_MSG_ERROR("Python $PYTHON_VERSION setuptools is not installed")
	], [test "x$enable_pyzfs" != xno], [
	enable_pyzfs=no
	])
	])
	])

	dnl #
	dnl # Python "cffi" module is required to run pyzfs
	dnl #
	AS_IF([test "x$enable_pyzfs" = xcheck -o "x$enable_pyzfs" = xyes], [
	ZFS_AC_PYTHON_MODULE([cffi], [], [
	AS_IF([test "x$enable_pyzfs" = xyes], [
	AC_MSG_ERROR("Python $PYTHON_VERSION cffi is not installed")
	], [test "x$enable_pyzfs" != xno], [
	enable_pyzfs=no
	])
	])
	])

	dnl #
	dnl # Set enable_pyzfs to 'yes' if every check passed
	dnl #
	AS_IF([test "x$enable_pyzfs" = xcheck], [enable_pyzfs=yes])

	AM_CONDITIONAL([PYZFS_ENABLED], [test "x$enable_pyzfs" = xyes])
	AC_SUBST([PYZFS_ENABLED], [$enable_pyzfs])
	AC_SUBST(pythonsitedir, [$PYTHON_SITE_PKG])

	AC_MSG_CHECKING([whether to enable pyzfs: ])
	AC_MSG_RESULT($enable_pyzfs)
	])
	diff --git a/sys/contrib/openzfs/config/ax_python_devel.m4 b/sys/contrib/openzfs/config/ax_python_devel.m4
	index faf6c2b0d7ef..fcf73dc20880 100644
	--- a/sys/contrib/openzfs/config/ax_python_devel.m4
	+++ b/sys/contrib/openzfs/config/ax_python_devel.m4
	@@ -1,344 +1,365 @@
	# ===========================================================================
	# https://www.gnu.org/software/autoconf-archive/ax_python_devel.html
	# ===========================================================================
	#
	# SYNOPSIS
	#
	# AX_PYTHON_DEVEL([version], [action-if-not-found])
	#
	# DESCRIPTION
	#
	# Note: Defines as a precious variable "PYTHON_VERSION". Don't override it
	# in your configure.ac.
	#
	# Note: this is a slightly modified version of the original AX_PYTHON_DEVEL
	# macro which accepts an additional [action-if-not-found] argument. This
	# allow to detect if Python development is available without aborting the
	# configure phase with an hard error in case it is not.
	#
	# This macro checks for Python and tries to get the include path to
	# 'Python.h'. It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LIBS) output
	# variables. It also exports $(PYTHON_EXTRA_LIBS) and
	# $(PYTHON_EXTRA_LDFLAGS) for embedding Python in your code.
	#
	# You can search for some particular version of Python by passing a
	# parameter to this macro, for example ">= '2.3.1'", or "== '2.4'". Please
	# note that you have to pass also an operator along with the version to
	# match, and pay special attention to the single quotes surrounding the
	# version number. Don't use "PYTHON_VERSION" for this: that environment
	# variable is declared as precious and thus reserved for the end-user.
	#
	# This macro should work for all versions of Python >= 2.1.0. As an end
	# user, you can disable the check for the python version by setting the
	# PYTHON_NOVERSIONCHECK environment variable to something else than the
	# empty string.
	#
	# If you need to use this macro for an older Python version, please
	# contact the authors. We're always open for feedback.
	#
	# LICENSE
	#
	# Copyright (c) 2009 Sebastian Huber <sebastian-huber@web.de>
	# Copyright (c) 2009 Alan W. Irwin
	# Copyright (c) 2009 Rafael Laboissiere <rafael@laboissiere.net>
	# Copyright (c) 2009 Andrew Collier
	# Copyright (c) 2009 Matteo Settenvini <matteo@member.fsf.org>
	# Copyright (c) 2009 Horst Knorr <hk_classes@knoda.org>
	# Copyright (c) 2013 Daniel Mullner <muellner@math.stanford.edu>
	# Copyright (c) 2018 loli10K <ezomori.nozomu@gmail.com>
	#
	# This program is free software: you can redistribute it and/or modify it
	# under the terms of the GNU General Public License as published by the
	# Free Software Foundation, either version 3 of the License, or (at your
	# option) any later version.
	#
	# This program is distributed in the hope that it will be useful, but
	# WITHOUT ANY WARRANTY; without even the implied warranty of
	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
	# Public License for more details.
	#
	# You should have received a copy of the GNU General Public License along
	# with this program. If not, see <https://www.gnu.org/licenses/>.
	#
	# As a special exception, the respective Autoconf Macro's copyright owner
	# gives unlimited permission to copy, distribute and modify the configure
	# scripts that are the output of Autoconf when processing the Macro. You
	# need not follow the terms of the GNU General Public License when using
	# or distributing such scripts, even though portions of the text of the
	# Macro appear in them. The GNU General Public License (GPL) does govern
	# all other use of the material that constitutes the Autoconf Macro.
	#
	# This special exception to the GPL applies to versions of the Autoconf
	# Macro released by the Autoconf Archive. When you make and distribute a
	# modified version of the Autoconf Macro, you may extend this special
	# exception to the GPL to apply to your modified version as well.

	#serial 21

	AU_ALIAS([AC_PYTHON_DEVEL], [AX_PYTHON_DEVEL])
	AC_DEFUN([AX_PYTHON_DEVEL],[
	#
	# Allow the use of a (user set) custom python version
	#
	AC_ARG_VAR([PYTHON_VERSION],[The installed Python
	version to use, for example '2.3'. This string
	will be appended to the Python interpreter
	canonical name.])

	AC_PATH_PROG([PYTHON],[python[$PYTHON_VERSION]])
	if test -z "$PYTHON"; then
	m4_ifvaln([$2],[$2],[
	AC_MSG_ERROR([Cannot find python$PYTHON_VERSION in your system path])
	PYTHON_VERSION=""
	])
	fi

	#
	# Check for a version of Python >= 2.1.0
	#
	AC_MSG_CHECKING([for a version of Python >= '2.1.0'])
	- ac_supports_python_ver=`$PYTHON -c "import sys; \
	- ver = sys.version.split ()[[0]]; \
	- print (ver >= '2.1.0')"`
	+ ac_supports_python_ver=`cat<<EOD \| $PYTHON -
	+from __future__ import print_function;
	+import sys;
	+try:
	+ from packaging import version;
	+except ImportError:
	+ from distlib import version;
	+ver = sys.version.split ()[[0]];
	+(tst_cmp, tst_ver) = ">= '2.1.0'".split ();
	+tst_ver = tst_ver.strip ("'");
	+eval ("print (version.LegacyVersion (ver)"+ tst_cmp +"version.LegacyVersion (tst_ver))")
	+EOD`
	if test "$ac_supports_python_ver" != "True"; then
	if test -z "$PYTHON_NOVERSIONCHECK"; then
	AC_MSG_RESULT([no])
	m4_ifvaln([$2],[$2],[
	AC_MSG_FAILURE([
	This version of the AC@&t@_PYTHON_DEVEL macro
	doesn't work properly with versions of Python before
	2.1.0. You may need to re-run configure, setting the
	variables PYTHON_CPPFLAGS, PYTHON_LIBS, PYTHON_SITE_PKG,
	PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand.
	Moreover, to disable this check, set PYTHON_NOVERSIONCHECK
	to something else than an empty string.
	])
	])
	else
	AC_MSG_RESULT([skip at user request])
	fi
	else
	AC_MSG_RESULT([yes])
	fi

	#
	# if the macro parameter ``version'' is set, honour it
	#
	if test -n "$1"; then
	AC_MSG_CHECKING([for a version of Python $1])
	- ac_supports_python_ver=`$PYTHON -c "import sys; \
	- ver = sys.version.split ()[[0]]; \
	- print (ver $1)"`
	+ # Why the strip ()? Because if we don't, version.parse
	+ # will, for example, report 3.10.0 >= '3.11.0'
	+ ac_supports_python_ver=`cat<<EOD \| $PYTHON -
	+
	+from __future__ import print_function;
	+import sys;
	+try:
	+ from packaging import version;
	+except ImportError:
	+ from distlib import version;
	+ver = sys.version.split ()[[0]];
	+(tst_cmp, tst_ver) = "$1".split ();
	+tst_ver = tst_ver.strip ("'");
	+eval ("print (version.LegacyVersion (ver)"+ tst_cmp +"version.LegacyVersion (tst_ver))")
	+EOD`
	if test "$ac_supports_python_ver" = "True"; then
	AC_MSG_RESULT([yes])
	else
	AC_MSG_RESULT([no])
	m4_ifvaln([$2],[$2],[
	AC_MSG_ERROR([this package requires Python $1.
	If you have it installed, but it isn't the default Python
	interpreter in your system path, please pass the PYTHON_VERSION
	variable to configure. See ``configure --help'' for reference.
	])
	PYTHON_VERSION=""
	])
	fi
	fi

	#
	# Check if you have distutils, else fail
	#
	AC_MSG_CHECKING([for the distutils Python package])
	if ac_distutils_result=`$PYTHON -c "import distutils" 2>&1`; then
	AC_MSG_RESULT([yes])
	else
	AC_MSG_RESULT([no])
	m4_ifvaln([$2],[$2],[
	AC_MSG_ERROR([cannot import Python module "distutils".
	Please check your Python installation. The error was:
	$ac_distutils_result])
	PYTHON_VERSION=""
	])
	fi

	#
	# Check for Python include path
	#
	AC_MSG_CHECKING([for Python include path])
	if test -z "$PYTHON_CPPFLAGS"; then
	python_path=`$PYTHON -c "import distutils.sysconfig; \
	print (distutils.sysconfig.get_python_inc ());"`
	plat_python_path=`$PYTHON -c "import distutils.sysconfig; \
	print (distutils.sysconfig.get_python_inc (plat_specific=1));"`
	if test -n "${python_path}"; then
	if test "${plat_python_path}" != "${python_path}"; then
	python_path="-I$python_path -I$plat_python_path"
	else
	python_path="-I$python_path"
	fi
	fi
	PYTHON_CPPFLAGS=$python_path
	fi
	AC_MSG_RESULT([$PYTHON_CPPFLAGS])
	AC_SUBST([PYTHON_CPPFLAGS])

	#
	# Check for Python library path
	#
	AC_MSG_CHECKING([for Python library path])
	if test -z "$PYTHON_LIBS"; then
	# (makes two attempts to ensure we've got a version number
	# from the interpreter)
	ac_python_version=`cat<<EOD \| $PYTHON -

	# join all versioning strings, on some systems
	# major/minor numbers could be in different list elements
	from distutils.sysconfig import *
	e = get_config_var('VERSION')
	if e is not None:
	print(e)
	EOD`

	if test -z "$ac_python_version"; then
	if test -n "$PYTHON_VERSION"; then
	ac_python_version=$PYTHON_VERSION
	else
	ac_python_version=`$PYTHON -c "import sys; \
	print (sys.version[[:3]])"`
	fi
	fi

	# Make the versioning information available to the compiler
	AC_DEFINE_UNQUOTED([HAVE_PYTHON], ["$ac_python_version"],
	[If available, contains the Python version number currently in use.])

	# First, the library directory:
	ac_python_libdir=`cat<<EOD \| $PYTHON -

	# There should be only one
	import distutils.sysconfig
	e = distutils.sysconfig.get_config_var('LIBDIR')
	if e is not None:
	print (e)
	EOD`

	# Now, for the library:
	ac_python_library=`cat<<EOD \| $PYTHON -

	import distutils.sysconfig
	c = distutils.sysconfig.get_config_vars()
	if 'LDVERSION' in c:
	print ('python'+c[['LDVERSION']])
	else:
	print ('python'+c[['VERSION']])
	EOD`

	# This small piece shamelessly adapted from PostgreSQL python macro;
	# credits goes to momjian, I think. I'd like to put the right name
	# in the credits, if someone can point me in the right direction... ?
	#
	if test -n "$ac_python_libdir" -a -n "$ac_python_library"
	then
	# use the official shared library
	ac_python_library=`echo "$ac_python_library" \| sed "s/^lib//"`
	PYTHON_LIBS="-L$ac_python_libdir -l$ac_python_library"
	else
	# old way: use libpython from python_configdir
	ac_python_libdir=`$PYTHON -c \
	"from distutils.sysconfig import get_python_lib as f; \
	import os; \
	print (os.path.join(f(plat_specific=1, standard_lib=1), 'config'));"`
	PYTHON_LIBS="-L$ac_python_libdir -lpython$ac_python_version"
	fi

	if test -z "PYTHON_LIBS"; then
	m4_ifvaln([$2],[$2],[
	AC_MSG_ERROR([
	Cannot determine location of your Python DSO. Please check it was installed with
	dynamic libraries enabled, or try setting PYTHON_LIBS by hand.
	])
	])
	fi
	fi
	AC_MSG_RESULT([$PYTHON_LIBS])
	AC_SUBST([PYTHON_LIBS])

	#
	# Check for site packages
	#
	AC_MSG_CHECKING([for Python site-packages path])
	if test -z "$PYTHON_SITE_PKG"; then
	PYTHON_SITE_PKG=`$PYTHON -c "import distutils.sysconfig; \
	print (distutils.sysconfig.get_python_lib(0,0));"`
	fi
	AC_MSG_RESULT([$PYTHON_SITE_PKG])
	AC_SUBST([PYTHON_SITE_PKG])

	#
	# libraries which must be linked in when embedding
	#
	AC_MSG_CHECKING(python extra libraries)
	if test -z "$PYTHON_EXTRA_LIBS"; then
	PYTHON_EXTRA_LIBS=`$PYTHON -c "import distutils.sysconfig; \
	conf = distutils.sysconfig.get_config_var; \
	print (conf('LIBS') + ' ' + conf('SYSLIBS'))"`
	fi
	AC_MSG_RESULT([$PYTHON_EXTRA_LIBS])
	AC_SUBST(PYTHON_EXTRA_LIBS)

	#
	# linking flags needed when embedding
	#
	AC_MSG_CHECKING(python extra linking flags)
	if test -z "$PYTHON_EXTRA_LDFLAGS"; then
	PYTHON_EXTRA_LDFLAGS=`$PYTHON -c "import distutils.sysconfig; \
	conf = distutils.sysconfig.get_config_var; \
	print (conf('LINKFORSHARED'))"`
	fi
	AC_MSG_RESULT([$PYTHON_EXTRA_LDFLAGS])
	AC_SUBST(PYTHON_EXTRA_LDFLAGS)

	#
	# final check to see if everything compiles alright
	#
	AC_MSG_CHECKING([consistency of all components of python development environment])
	# save current global flags
	ac_save_LIBS="$LIBS"
	ac_save_LDFLAGS="$LDFLAGS"
	ac_save_CPPFLAGS="$CPPFLAGS"
	LIBS="$ac_save_LIBS $PYTHON_LIBS $PYTHON_EXTRA_LIBS $PYTHON_EXTRA_LIBS"
	LDFLAGS="$ac_save_LDFLAGS $PYTHON_EXTRA_LDFLAGS"
	CPPFLAGS="$ac_save_CPPFLAGS $PYTHON_CPPFLAGS"
	AC_LANG_PUSH([C])
	AC_LINK_IFELSE([
	AC_LANG_PROGRAM([[#include <Python.h>]],
	[[Py_Initialize();]])
	],[pythonexists=yes],[pythonexists=no])
	AC_LANG_POP([C])
	# turn back to default flags
	CPPFLAGS="$ac_save_CPPFLAGS"
	LIBS="$ac_save_LIBS"
	LDFLAGS="$ac_save_LDFLAGS"

	AC_MSG_RESULT([$pythonexists])

	if test ! "x$pythonexists" = "xyes"; then
	m4_ifvaln([$2],[$2],[
	AC_MSG_FAILURE([
	Could not link test program to Python. Maybe the main Python library has been
	installed in some non-standard library path. If so, pass it to configure,
	via the LIBS environment variable.
	Example: ./configure LIBS="-L/usr/non-standard-path/python/lib"
	============================================================================
	ERROR!
	You probably have to install the development version of the Python package
	for your distribution. The exact name of this package varies among them.
	============================================================================
	])
	PYTHON_VERSION=""
	])
	fi

	#
	# all done!
	#
	])
	diff --git a/sys/contrib/openzfs/configure.ac b/sys/contrib/openzfs/configure.ac
	index 077ad7c43f4d..27409c82f396 100644
	--- a/sys/contrib/openzfs/configure.ac
	+++ b/sys/contrib/openzfs/configure.ac
	@@ -1,419 +1,416 @@
	/*
	* This file is part of the ZFS Linux port.
	*
	* Copyright (c) 2009 Lawrence Livermore National Security, LLC.
	* Produced at Lawrence Livermore National Laboratory
	* Written by:
	* Brian Behlendorf <behlendorf1@llnl.gov>,
	* Herb Wartens <wartens2@llnl.gov>,
	* Jim Garlick <garlick@llnl.gov>
	* LLNL-CODE-403049
	*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License, Version 1.0 only
	* (the "License"). You may not use this file except in compliance
	* with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	AC_INIT(m4_esyscmd(grep ^Name: META \| cut -d ':' -f 2 \| tr -d ' \n'),
	m4_esyscmd(grep ^Version: META \| cut -d ':' -f 2 \| tr -d ' \n'))
	AC_LANG(C)
	ZFS_AC_META
	AC_CONFIG_AUX_DIR([config])
	AC_CONFIG_MACRO_DIR([config])
	AC_CANONICAL_TARGET
	AM_MAINTAINER_MODE
	m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
	AM_INIT_AUTOMAKE([subdir-objects])
	AC_CONFIG_HEADERS([zfs_config.h], [
	(mv zfs_config.h zfs_config.h.tmp &&
	awk -f ${ac_srcdir}/config/config.awk zfs_config.h.tmp >zfs_config.h &&
	rm zfs_config.h.tmp) \|\| exit 1])

	LT_INIT
	AC_PROG_INSTALL
	AC_PROG_CC
	AC_PROG_LN_S
	PKG_PROG_PKG_CONFIG
	AM_PROG_AS
	AM_PROG_CC_C_O
	AX_CODE_COVERAGE
	_AM_PROG_TAR(pax)

	ZFS_AC_LICENSE
	ZFS_AC_CONFIG
	ZFS_AC_PACKAGE
	ZFS_AC_DEBUG
	ZFS_AC_DEBUGINFO
	ZFS_AC_DEBUG_KMEM
	ZFS_AC_DEBUG_KMEM_TRACKING
	ZFS_AC_DEBUG_INVARIANTS

	AC_CONFIG_FILES([
	Makefile
	cmd/Makefile
	cmd/arc_summary/Makefile
	cmd/arcstat/Makefile
	cmd/dbufstat/Makefile
	cmd/fsck_zfs/Makefile
	cmd/mount_zfs/Makefile
	cmd/raidz_test/Makefile
	cmd/vdev_id/Makefile
	cmd/zdb/Makefile
	cmd/zed/Makefile
	cmd/zed/zed.d/Makefile
	cmd/zfs/Makefile
	cmd/zfs_ids_to_path/Makefile
	cmd/zgenhostid/Makefile
	cmd/zhack/Makefile
	cmd/zinject/Makefile
	cmd/zpool/Makefile
	cmd/zstream/Makefile
	cmd/ztest/Makefile
	cmd/zvol_id/Makefile
	cmd/zvol_wait/Makefile
	cmd/zpool_influxdb/Makefile
	contrib/Makefile
	contrib/bash_completion.d/Makefile
	contrib/bpftrace/Makefile
	contrib/dracut/02zfsexpandknowledge/Makefile
	contrib/dracut/90zfs/Makefile
	contrib/dracut/Makefile
	contrib/initramfs/Makefile
	contrib/initramfs/conf.d/Makefile
	contrib/initramfs/conf-hooks.d/Makefile
	contrib/initramfs/hooks/Makefile
	contrib/initramfs/scripts/Makefile
	contrib/initramfs/scripts/local-top/Makefile
	contrib/pam_zfs_key/Makefile
	contrib/pyzfs/Makefile
	contrib/pyzfs/setup.py
	contrib/zcp/Makefile
	etc/Makefile
	etc/default/Makefile
	etc/init.d/Makefile
	etc/modules-load.d/Makefile
	etc/sudoers.d/Makefile
	etc/systemd/Makefile
	etc/systemd/system-generators/Makefile
	etc/systemd/system/Makefile
	etc/zfs/Makefile
	include/Makefile
	include/os/Makefile
	include/os/freebsd/Makefile
	include/os/freebsd/linux/Makefile
	include/os/freebsd/spl/Makefile
	include/os/freebsd/spl/acl/Makefile
	include/os/freebsd/spl/rpc/Makefile
	include/os/freebsd/spl/sys/Makefile
	include/os/freebsd/zfs/Makefile
	include/os/freebsd/zfs/sys/Makefile
	include/os/linux/Makefile
	include/os/linux/kernel/Makefile
	include/os/linux/kernel/linux/Makefile
	include/os/linux/spl/Makefile
	include/os/linux/spl/rpc/Makefile
	include/os/linux/spl/sys/Makefile
	include/os/linux/zfs/Makefile
	include/os/linux/zfs/sys/Makefile
	include/sys/Makefile
	include/sys/crypto/Makefile
	include/sys/fm/Makefile
	include/sys/fm/fs/Makefile
	include/sys/fs/Makefile
	include/sys/lua/Makefile
	include/sys/sysevent/Makefile
	include/sys/zstd/Makefile
	lib/Makefile
	lib/libavl/Makefile
	lib/libefi/Makefile
	lib/libicp/Makefile
	lib/libnvpair/Makefile
	lib/libshare/Makefile
	lib/libspl/Makefile
	lib/libspl/include/Makefile
	lib/libspl/include/ia32/Makefile
	lib/libspl/include/ia32/sys/Makefile
	lib/libspl/include/os/Makefile
	lib/libspl/include/os/freebsd/Makefile
	lib/libspl/include/os/freebsd/sys/Makefile
	lib/libspl/include/os/linux/Makefile
	lib/libspl/include/os/linux/sys/Makefile
	lib/libspl/include/rpc/Makefile
	lib/libspl/include/sys/Makefile
	lib/libspl/include/sys/dktp/Makefile
	lib/libspl/include/util/Makefile
	lib/libtpool/Makefile
	lib/libunicode/Makefile
	lib/libuutil/Makefile
	lib/libzfs/Makefile
	lib/libzfs/libzfs.pc
	lib/libzfsbootenv/Makefile
	lib/libzfsbootenv/libzfsbootenv.pc
	lib/libzfs_core/Makefile
	lib/libzfs_core/libzfs_core.pc
	lib/libzpool/Makefile
	lib/libzstd/Makefile
	lib/libzutil/Makefile
	man/Makefile
	- man/man1/Makefile
	- man/man5/Makefile
	- man/man8/Makefile
	module/Kbuild
	module/Makefile
	module/avl/Makefile
	module/icp/Makefile
	module/lua/Makefile
	module/nvpair/Makefile
	module/os/linux/spl/Makefile
	module/os/linux/zfs/Makefile
	module/spl/Makefile
	module/unicode/Makefile
	module/zcommon/Makefile
	module/zfs/Makefile
	module/zstd/Makefile
	rpm/Makefile
	rpm/generic/Makefile
	rpm/generic/zfs-dkms.spec
	rpm/generic/zfs-kmod.spec
	rpm/generic/zfs.spec
	rpm/redhat/Makefile
	rpm/redhat/zfs-dkms.spec
	rpm/redhat/zfs-kmod.spec
	rpm/redhat/zfs.spec
	scripts/Makefile
	tests/Makefile
	tests/runfiles/Makefile
	tests/test-runner/Makefile
	tests/test-runner/bin/Makefile
	tests/test-runner/include/Makefile
	tests/test-runner/man/Makefile
	tests/zfs-tests/Makefile
	tests/zfs-tests/callbacks/Makefile
	tests/zfs-tests/cmd/Makefile
	tests/zfs-tests/cmd/badsend/Makefile
	tests/zfs-tests/cmd/btree_test/Makefile
	tests/zfs-tests/cmd/chg_usr_exec/Makefile
	tests/zfs-tests/cmd/devname2devid/Makefile
	tests/zfs-tests/cmd/draid/Makefile
	tests/zfs-tests/cmd/dir_rd_update/Makefile
	tests/zfs-tests/cmd/file_check/Makefile
	tests/zfs-tests/cmd/file_trunc/Makefile
	tests/zfs-tests/cmd/file_write/Makefile
	tests/zfs-tests/cmd/get_diff/Makefile
	tests/zfs-tests/cmd/largest_file/Makefile
	tests/zfs-tests/cmd/libzfs_input_check/Makefile
	tests/zfs-tests/cmd/mkbusy/Makefile
	tests/zfs-tests/cmd/mkfile/Makefile
	tests/zfs-tests/cmd/mkfiles/Makefile
	tests/zfs-tests/cmd/mktree/Makefile
	tests/zfs-tests/cmd/mmap_exec/Makefile
	tests/zfs-tests/cmd/mmap_libaio/Makefile
	tests/zfs-tests/cmd/mmapwrite/Makefile
	tests/zfs-tests/cmd/nvlist_to_lua/Makefile
	tests/zfs-tests/cmd/randfree_file/Makefile
	tests/zfs-tests/cmd/randwritecomp/Makefile
	tests/zfs-tests/cmd/readmmap/Makefile
	tests/zfs-tests/cmd/rename_dir/Makefile
	tests/zfs-tests/cmd/rm_lnkcnt_zero_file/Makefile
	tests/zfs-tests/cmd/send_doall/Makefile
	tests/zfs-tests/cmd/stride_dd/Makefile
	tests/zfs-tests/cmd/threadsappend/Makefile
	tests/zfs-tests/cmd/user_ns_exec/Makefile
	tests/zfs-tests/cmd/xattrtest/Makefile
	tests/zfs-tests/include/Makefile
	tests/zfs-tests/tests/Makefile
	tests/zfs-tests/tests/functional/Makefile
	tests/zfs-tests/tests/functional/acl/Makefile
	tests/zfs-tests/tests/functional/acl/off/Makefile
	tests/zfs-tests/tests/functional/acl/posix/Makefile
	tests/zfs-tests/tests/functional/acl/posix-sa/Makefile
	tests/zfs-tests/tests/functional/alloc_class/Makefile
	tests/zfs-tests/tests/functional/arc/Makefile
	tests/zfs-tests/tests/functional/atime/Makefile
	tests/zfs-tests/tests/functional/bootfs/Makefile
	tests/zfs-tests/tests/functional/btree/Makefile
	tests/zfs-tests/tests/functional/cache/Makefile
	tests/zfs-tests/tests/functional/cachefile/Makefile
	tests/zfs-tests/tests/functional/casenorm/Makefile
	tests/zfs-tests/tests/functional/channel_program/Makefile
	tests/zfs-tests/tests/functional/channel_program/lua_core/Makefile
	tests/zfs-tests/tests/functional/channel_program/synctask_core/Makefile
	tests/zfs-tests/tests/functional/chattr/Makefile
	tests/zfs-tests/tests/functional/checksum/Makefile
	tests/zfs-tests/tests/functional/clean_mirror/Makefile
	tests/zfs-tests/tests/functional/cli_root/Makefile
	tests/zfs-tests/tests/functional/cli_root/zdb/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_bookmark/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_change-key/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_clone/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_copies/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_create/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_destroy/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_diff/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_get/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_ids_to_path/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_inherit/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_jail/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_load-key/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_mount/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_program/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_promote/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_property/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_receive/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_rename/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_reservation/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_rollback/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_send/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_set/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_share/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_snapshot/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_sysfs/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_unload-key/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_unmount/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_unshare/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_upgrade/Makefile
	tests/zfs-tests/tests/functional/cli_root/zfs_wait/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_add/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_attach/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_clear/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_create/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_destroy/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_detach/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_events/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_expand/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_export/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_get/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_history/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_import/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_import/blockfiles/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_initialize/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_labelclear/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_offline/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_online/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_remove/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_reopen/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_replace/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_resilver/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_scrub/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_set/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_split/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_status/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_sync/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_trim/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_upgrade/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_upgrade/blockfiles/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_wait/Makefile
	tests/zfs-tests/tests/functional/cli_root/zpool_wait/scan/Makefile
	tests/zfs-tests/tests/functional/cli_user/Makefile
	tests/zfs-tests/tests/functional/cli_user/misc/Makefile
	tests/zfs-tests/tests/functional/cli_user/zfs_list/Makefile
	tests/zfs-tests/tests/functional/cli_user/zpool_iostat/Makefile
	tests/zfs-tests/tests/functional/cli_user/zpool_list/Makefile
	tests/zfs-tests/tests/functional/cli_user/zpool_status/Makefile
	tests/zfs-tests/tests/functional/compression/Makefile
	tests/zfs-tests/tests/functional/cp_files/Makefile
	tests/zfs-tests/tests/functional/ctime/Makefile
	tests/zfs-tests/tests/functional/deadman/Makefile
	tests/zfs-tests/tests/functional/delegate/Makefile
	tests/zfs-tests/tests/functional/devices/Makefile
	tests/zfs-tests/tests/functional/events/Makefile
	tests/zfs-tests/tests/functional/exec/Makefile
	tests/zfs-tests/tests/functional/fallocate/Makefile
	tests/zfs-tests/tests/functional/fault/Makefile
	tests/zfs-tests/tests/functional/features/Makefile
	tests/zfs-tests/tests/functional/features/async_destroy/Makefile
	tests/zfs-tests/tests/functional/features/large_dnode/Makefile
	tests/zfs-tests/tests/functional/grow/Makefile
	tests/zfs-tests/tests/functional/history/Makefile
	tests/zfs-tests/tests/functional/hkdf/Makefile
	tests/zfs-tests/tests/functional/inheritance/Makefile
	tests/zfs-tests/tests/functional/inuse/Makefile
	tests/zfs-tests/tests/functional/io/Makefile
	tests/zfs-tests/tests/functional/l2arc/Makefile
	tests/zfs-tests/tests/functional/large_files/Makefile
	tests/zfs-tests/tests/functional/largest_pool/Makefile
	tests/zfs-tests/tests/functional/libzfs/Makefile
	tests/zfs-tests/tests/functional/limits/Makefile
	tests/zfs-tests/tests/functional/link_count/Makefile
	tests/zfs-tests/tests/functional/log_spacemap/Makefile
	tests/zfs-tests/tests/functional/migration/Makefile
	tests/zfs-tests/tests/functional/mmap/Makefile
	tests/zfs-tests/tests/functional/mmp/Makefile
	tests/zfs-tests/tests/functional/mount/Makefile
	tests/zfs-tests/tests/functional/mv_files/Makefile
	tests/zfs-tests/tests/functional/nestedfs/Makefile
	tests/zfs-tests/tests/functional/no_space/Makefile
	tests/zfs-tests/tests/functional/nopwrite/Makefile
	tests/zfs-tests/tests/functional/online_offline/Makefile
	tests/zfs-tests/tests/functional/pam/Makefile
	tests/zfs-tests/tests/functional/pool_checkpoint/Makefile
	tests/zfs-tests/tests/functional/pool_names/Makefile
	tests/zfs-tests/tests/functional/poolversion/Makefile
	tests/zfs-tests/tests/functional/privilege/Makefile
	tests/zfs-tests/tests/functional/procfs/Makefile
	tests/zfs-tests/tests/functional/projectquota/Makefile
	tests/zfs-tests/tests/functional/pyzfs/Makefile
	tests/zfs-tests/tests/functional/quota/Makefile
	tests/zfs-tests/tests/functional/raidz/Makefile
	tests/zfs-tests/tests/functional/redacted_send/Makefile
	tests/zfs-tests/tests/functional/redundancy/Makefile
	tests/zfs-tests/tests/functional/refquota/Makefile
	tests/zfs-tests/tests/functional/refreserv/Makefile
	tests/zfs-tests/tests/functional/removal/Makefile
	tests/zfs-tests/tests/functional/rename_dirs/Makefile
	tests/zfs-tests/tests/functional/replacement/Makefile
	tests/zfs-tests/tests/functional/reservation/Makefile
	tests/zfs-tests/tests/functional/rootpool/Makefile
	tests/zfs-tests/tests/functional/rsend/Makefile
	tests/zfs-tests/tests/functional/scrub_mirror/Makefile
	tests/zfs-tests/tests/functional/slog/Makefile
	tests/zfs-tests/tests/functional/snapshot/Makefile
	tests/zfs-tests/tests/functional/snapused/Makefile
	tests/zfs-tests/tests/functional/sparse/Makefile
	tests/zfs-tests/tests/functional/suid/Makefile
	tests/zfs-tests/tests/functional/threadsappend/Makefile
	tests/zfs-tests/tests/functional/tmpfile/Makefile
	tests/zfs-tests/tests/functional/trim/Makefile
	tests/zfs-tests/tests/functional/truncate/Makefile
	tests/zfs-tests/tests/functional/upgrade/Makefile
	tests/zfs-tests/tests/functional/user_namespace/Makefile
	tests/zfs-tests/tests/functional/userquota/Makefile
	tests/zfs-tests/tests/functional/vdev_zaps/Makefile
	tests/zfs-tests/tests/functional/write_dirs/Makefile
	tests/zfs-tests/tests/functional/xattr/Makefile
	tests/zfs-tests/tests/functional/zpool_influxdb/Makefile
	tests/zfs-tests/tests/functional/zvol/Makefile
	tests/zfs-tests/tests/functional/zvol/zvol_ENOSPC/Makefile
	tests/zfs-tests/tests/functional/zvol/zvol_cli/Makefile
	tests/zfs-tests/tests/functional/zvol/zvol_misc/Makefile
	tests/zfs-tests/tests/functional/zvol/zvol_swap/Makefile
	tests/zfs-tests/tests/perf/Makefile
	tests/zfs-tests/tests/perf/fio/Makefile
	tests/zfs-tests/tests/perf/regression/Makefile
	tests/zfs-tests/tests/perf/scripts/Makefile
	tests/zfs-tests/tests/stress/Makefile
	udev/Makefile
	udev/rules.d/Makefile
	zfs.release
	])


	AC_OUTPUT
	diff --git a/sys/contrib/openzfs/contrib/dracut/90zfs/.gitignore b/sys/contrib/openzfs/contrib/dracut/90zfs/.gitignore
	index dce24393479b..cb84212f3a2a 100644
	--- a/sys/contrib/openzfs/contrib/dracut/90zfs/.gitignore
	+++ b/sys/contrib/openzfs/contrib/dracut/90zfs/.gitignore
	@@ -1,11 +1,2 @@
	-export-zfs.sh
	-module-setup.sh
	-mount-zfs.sh
	-parse-zfs.sh
	-zfs-generator.sh
	-zfs-lib.sh
	-zfs-load-key.sh
	-zfs-needshutdown.sh
	-zfs-env-bootfs.service
	-zfs-snapshot-bootfs.service
	-zfs-rollback-bootfs.service
	+*.sh
	+*.service
	diff --git a/sys/contrib/openzfs/contrib/dracut/90zfs/Makefile.am b/sys/contrib/openzfs/contrib/dracut/90zfs/Makefile.am
	index ff3a2b27f24e..3f7050300994 100644
	--- a/sys/contrib/openzfs/contrib/dracut/90zfs/Makefile.am
	+++ b/sys/contrib/openzfs/contrib/dracut/90zfs/Makefile.am
	@@ -1,23 +1,24 @@
	include $(top_srcdir)/config/Substfiles.am
	include $(top_srcdir)/config/Shellcheck.am

	pkgdracutdir = $(dracutdir)/modules.d/90zfs
	pkgdracut_SCRIPTS = \
	export-zfs.sh \
	module-setup.sh \
	mount-zfs.sh \
	parse-zfs.sh \
	zfs-generator.sh \
	zfs-load-key.sh \
	zfs-needshutdown.sh \
	- zfs-lib.sh
	+ zfs-lib.sh \
	+ import-opts-generator.sh

	pkgdracut_DATA = \
	zfs-env-bootfs.service \
	zfs-snapshot-bootfs.service \
	zfs-rollback-bootfs.service

	SUBSTFILES += $(pkgdracut_SCRIPTS) $(pkgdracut_DATA)

	# Provided by /bin/sleep, and, again, every implementation of that supports this
	CHECKBASHISMS_IGNORE = -e 'sleep only takes one integer' -e 'sleep 0.'
	diff --git a/sys/contrib/openzfs/contrib/dracut/90zfs/import-opts-generator.sh.in b/sys/contrib/openzfs/contrib/dracut/90zfs/import-opts-generator.sh.in
	new file mode 100755
	index 000000000000..8bc8c9b35b73
	--- /dev/null
	+++ b/sys/contrib/openzfs/contrib/dracut/90zfs/import-opts-generator.sh.in
	@@ -0,0 +1,5 @@
	+#!/bin/sh
	+
	+. /lib/dracut-zfs-lib.sh
	+
	+echo ZPOOL_IMPORT_OPTS="$ZPOOL_IMPORT_OPTS"
	diff --git a/sys/contrib/openzfs/contrib/dracut/90zfs/module-setup.sh.in b/sys/contrib/openzfs/contrib/dracut/90zfs/module-setup.sh.in
	index 817da5b2b4a9..a4b62da1f742 100755
	--- a/sys/contrib/openzfs/contrib/dracut/90zfs/module-setup.sh.in
	+++ b/sys/contrib/openzfs/contrib/dracut/90zfs/module-setup.sh.in
	@@ -1,132 +1,143 @@
	#!/usr/bin/env bash
	# shellcheck disable=SC2154

	check() {
	# We depend on udev-rules being loaded
	[ "${1}" = "-d" ] && return 0

	# Verify the zfs tool chain
	for tool in "@sbindir@/zgenhostid" "@sbindir@/zpool" "@sbindir@/zfs" "@mounthelperdir@/mount.zfs" ; do
	test -x "$tool" \|\| return 1
	done

	return 0
	}

	depends() {
	echo udev-rules
	return 0
	}

	installkernel() {
	instmods zfs
	instmods zcommon
	instmods znvpair
	instmods zavl
	instmods zunicode
	instmods zlua
	instmods icp
	instmods spl
	instmods zlib_deflate
	instmods zlib_inflate
	}

	install() {
	inst_rules @udevruledir@/90-zfs.rules
	inst_rules @udevruledir@/69-vdev.rules
	inst_rules @udevruledir@/60-zvol.rules
	dracut_install hostid
	dracut_install grep
	dracut_install @sbindir@/zgenhostid
	dracut_install @sbindir@/zfs
	dracut_install @sbindir@/zpool
	# Workaround for https://github.com/openzfs/zfs/issues/4749 by
	# ensuring libgcc_s.so(.1) is included
	if ldd @sbindir@/zpool \| grep -qF 'libgcc_s.so'; then
	# Dracut will have already tracked and included it
	:;
	elif command -v gcc-config >/dev/null 2>&1; then
	# On systems with gcc-config (Gentoo, Funtoo, etc.):
	# Use the current profile to resolve the appropriate path
	s="$(gcc-config -c)"
	dracut_install "/usr/lib/gcc/${s%-}/${s##-}/libgcc_s.so"*
	elif [ "$(echo /usr/lib/libgcc_s.so)" != "/usr/lib/libgcc_s.so" ]; then
	# Try a simple path first
	dracut_install /usr/lib/libgcc_s.so*
	elif [ "$(echo /lib/libgcc_s.so)" != "/lib/libgcc_s.so" ]; then
	# SUSE
	dracut_install /lib/libgcc_s.so
	else
	# Fallback: Guess the path and include all matches
	dracut_install /usr/lib/gcc//libgcc_s.so
	fi
	# shellcheck disable=SC2050
	if [ @LIBFETCH_DYNAMIC@ != 0 ]; then
	for d in $libdirs; do
	[ -e "$d/"@LIBFETCH_SONAME@ ] && dracut_install "$d/"@LIBFETCH_SONAME@
	done
	fi
	dracut_install @mounthelperdir@/mount.zfs
	dracut_install @udevdir@/vdev_id
	dracut_install awk
	dracut_install basename
	dracut_install cut
	dracut_install head
	dracut_install @udevdir@/zvol_id
	inst_hook cmdline 95 "${moddir}/parse-zfs.sh"
	if [ -n "$systemdutildir" ] ; then
	inst_script "${moddir}/zfs-generator.sh" "$systemdutildir"/system-generators/dracut-zfs-generator
	fi
	inst_hook pre-mount 90 "${moddir}/zfs-load-key.sh"
	inst_hook mount 98 "${moddir}/mount-zfs.sh"
	inst_hook cleanup 99 "${moddir}/zfs-needshutdown.sh"
	inst_hook shutdown 20 "${moddir}/export-zfs.sh"

	inst_simple "${moddir}/zfs-lib.sh" "/lib/dracut-zfs-lib.sh"
	if [ -e @sysconfdir@/zfs/zpool.cache ]; then
	inst @sysconfdir@/zfs/zpool.cache
	type mark_hostonly >/dev/null 2>&1 && mark_hostonly @sysconfdir@/zfs/zpool.cache
	fi

	if [ -e @sysconfdir@/zfs/vdev_id.conf ]; then
	inst @sysconfdir@/zfs/vdev_id.conf
	type mark_hostonly >/dev/null 2>&1 && mark_hostonly @sysconfdir@/zfs/vdev_id.conf
	fi

	# Synchronize initramfs and system hostid
	if [ -f @sysconfdir@/hostid ]; then
	inst @sysconfdir@/hostid
	type mark_hostonly >/dev/null 2>&1 && mark_hostonly @sysconfdir@/hostid
	elif HOSTID="$(hostid 2>/dev/null)" && [ "${HOSTID}" != "00000000" ]; then
	zgenhostid -o "${initdir}@sysconfdir@/hostid" "${HOSTID}"
	type mark_hostonly >/dev/null 2>&1 && mark_hostonly @sysconfdir@/hostid
	fi

	if dracut_module_included "systemd"; then
	mkdir -p "${initdir}/$systemdsystemunitdir/zfs-import.target.wants"
	- for _item in scan cache ; do
	- dracut_install @systemdunitdir@/zfs-import-$_item.service
	- if ! [ -L "${initdir}/$systemdsystemunitdir/zfs-import.target.wants"/zfs-import-$_item.service ]; then
	- ln -s ../zfs-import-$_item.service "${initdir}/$systemdsystemunitdir/zfs-import.target.wants"/zfs-import-$_item.service
	- type mark_hostonly >/dev/null 2>&1 && mark_hostonly @systemdunitdir@/zfs-import-$_item.service
	+ for _service in "zfs-import-scan.service" "zfs-import-cache.service" ; do
	+ dracut_install "@systemdunitdir@/$_service"
	+ if ! [ -L "${initdir}/$systemdsystemunitdir/zfs-import.target.wants/$_service" ]; then
	+ ln -sf ../$_service "${initdir}/$systemdsystemunitdir/zfs-import.target.wants/$_service"
	+ type mark_hostonly >/dev/null 2>&1 && mark_hostonly "@systemdunitdir@/$_service"
	fi
	done
	+
	inst "${moddir}"/zfs-env-bootfs.service "${systemdsystemunitdir}"/zfs-env-bootfs.service
	ln -s ../zfs-env-bootfs.service "${initdir}/${systemdsystemunitdir}/zfs-import.target.wants"/zfs-env-bootfs.service
	type mark_hostonly >/dev/null 2>&1 && mark_hostonly @systemdunitdir@/zfs-env-bootfs.service
	+
	dracut_install systemd-ask-password
	dracut_install systemd-tty-ask-password-agent
	+
	mkdir -p "${initdir}/$systemdsystemunitdir/initrd.target.wants"
	dracut_install @systemdunitdir@/zfs-import.target
	if ! [ -L "${initdir}/$systemdsystemunitdir/initrd.target.wants"/zfs-import.target ]; then
	ln -s ../zfs-import.target "${initdir}/$systemdsystemunitdir/initrd.target.wants"/zfs-import.target
	type mark_hostonly >/dev/null 2>&1 && mark_hostonly @systemdunitdir@/zfs-import.target
	fi
	+
	for _service in zfs-snapshot-bootfs.service zfs-rollback-bootfs.service ; do
	- inst "${moddir}"/$_service "${systemdsystemunitdir}"/$_service
	- if ! [ -L "${initdir}/$systemdsystemunitdir/initrd.target.wants"/$_service ]; then
	- ln -s ../$_service "${initdir}/$systemdsystemunitdir/initrd.target.wants"/$_service
	+ inst "${moddir}/$_service" "${systemdsystemunitdir}/$_service"
	+ if ! [ -L "${initdir}/$systemdsystemunitdir/initrd.target.wants/$_service" ]; then
	+ ln -s "../$_service" "${initdir}/$systemdsystemunitdir/initrd.target.wants/$_service"
	fi
	done
	+
	+ # There isn't a pkg-config variable for this,
	+ # and dracut doesn't automatically resolve anything this'd be next to
	+ local systemdsystemenvironmentgeneratordir
	+ systemdsystemenvironmentgeneratordir="$(pkg-config --variable=prefix systemd \|\| echo "/usr")/lib/systemd/system-environment-generators"
	+ mkdir -p "${initdir}/${systemdsystemenvironmentgeneratordir}"
	+ inst "${moddir}"/import-opts-generator.sh "${systemdsystemenvironmentgeneratordir}"/zfs-import-opts.sh
	fi
	}
	diff --git a/sys/contrib/openzfs/etc/systemd/system/zfs-import-cache.service.in b/sys/contrib/openzfs/etc/systemd/system/zfs-import-cache.service.in
	index 0d236fe9e468..b09961a8bb84 100644
	--- a/sys/contrib/openzfs/etc/systemd/system/zfs-import-cache.service.in
	+++ b/sys/contrib/openzfs/etc/systemd/system/zfs-import-cache.service.in
	@@ -1,20 +1,20 @@
	[Unit]
	Description=Import ZFS pools by cache file
	Documentation=man:zpool(8)
	DefaultDependencies=no
	Requires=systemd-udev-settle.service
	After=systemd-udev-settle.service
	After=cryptsetup.target
	After=multipathd.target
	After=systemd-remount-fs.service
	Before=zfs-import.target
	ConditionFileNotEmpty=@sysconfdir@/zfs/zpool.cache
	ConditionPathIsDirectory=/sys/module/zfs

	[Service]
	Type=oneshot
	RemainAfterExit=yes
	-ExecStart=@sbindir@/zpool import -c @sysconfdir@/zfs/zpool.cache -aN
	+ExecStart=@sbindir@/zpool import -c @sysconfdir@/zfs/zpool.cache -aN ${ZPOOL_IMPORT_OPTS}

	[Install]
	WantedBy=zfs-import.target
	diff --git a/sys/contrib/openzfs/etc/systemd/system/zfs-import-scan.service.in b/sys/contrib/openzfs/etc/systemd/system/zfs-import-scan.service.in
	index f0317e23e508..c1111c73a607 100644
	--- a/sys/contrib/openzfs/etc/systemd/system/zfs-import-scan.service.in
	+++ b/sys/contrib/openzfs/etc/systemd/system/zfs-import-scan.service.in
	@@ -1,19 +1,19 @@
	[Unit]
	Description=Import ZFS pools by device scanning
	Documentation=man:zpool(8)
	DefaultDependencies=no
	Requires=systemd-udev-settle.service
	After=systemd-udev-settle.service
	After=cryptsetup.target
	After=multipathd.target
	Before=zfs-import.target
	ConditionFileNotEmpty=!@sysconfdir@/zfs/zpool.cache
	ConditionPathIsDirectory=/sys/module/zfs

	[Service]
	Type=oneshot
	RemainAfterExit=yes
	-ExecStart=@sbindir@/zpool import -aN -o cachefile=none
	+ExecStart=@sbindir@/zpool import -aN -o cachefile=none ${ZPOOL_IMPORT_OPTS}

	[Install]
	WantedBy=zfs-import.target
	diff --git a/sys/contrib/openzfs/include/libnvpair.h b/sys/contrib/openzfs/include/libnvpair.h
	index 5277f9574ddf..bc50c3b7e1f8 100644
	--- a/sys/contrib/openzfs/include/libnvpair.h
	+++ b/sys/contrib/openzfs/include/libnvpair.h
	@@ -1,196 +1,197 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2013, Joyent, Inc. All rights reserved.
	*/

	#ifndef _LIBNVPAIR_H
	-#define _LIBNVPAIR_H
	+#define _LIBNVPAIR_H extern __attribute__((visibility("default")))

	#include <sys/nvpair.h>
	#include <stdlib.h>
	#include <stdio.h>
	#include <regex.h>

	#ifdef __cplusplus
	extern "C" {
	#endif

	/*
	* All interfaces described in this file are private to Solaris, and
	* are subject to change at any time and without notice. The public
	* nvlist/nvpair interfaces, as documented in manpage sections 3NVPAIR,
	* are all imported from <sys/nvpair.h> included above.
	*/

	-extern int nvpair_value_match(nvpair_t , int, char , char **);
	-extern int nvpair_value_match_regex(nvpair_t , int, char , regex_t *,
	+_LIBNVPAIR_H int nvpair_value_match(nvpair_t , int, char , char **);
	+_LIBNVPAIR_H int nvpair_value_match_regex(nvpair_t , int, char , regex_t *,
	char **);

	-extern void nvlist_print(FILE , nvlist_t );
	-int nvlist_print_json(FILE , nvlist_t );
	-extern void dump_nvlist(nvlist_t *, int);
	+_LIBNVPAIR_H void nvlist_print(FILE , nvlist_t );
	+_LIBNVPAIR_H int nvlist_print_json(FILE , nvlist_t );
	+_LIBNVPAIR_H void dump_nvlist(nvlist_t *, int);

	/*
	* Private nvlist printing interface that allows the caller some control
	* over output rendering (as opposed to nvlist_print and dump_nvlist).
	*
	* Obtain an opaque nvlist_prtctl_t cookie using nvlist_prtctl_alloc
	* (NULL on failure); on return the cookie is set up for default formatting
	* and rendering. Quote the cookie in subsequent customisation functions and
	* then pass the cookie to nvlist_prt to render the nvlist. Finally,
	* use nvlist_prtctl_free to release the cookie.
	*
	* For all nvlist_lookup_xxx and nvlist_lookup_xxx_array functions
	* we have a corresponding brace of functions that appoint replacement
	* rendering functions:
	*
	* extern void nvlist_prtctl_xxx(nvlist_prtctl_t,
	* void ()(nvlist_prtctl_t ctl, void private, const char *name,
	* xxxtype value))
	*
	* and
	*
	* extern void nvlist_prtctl_xxx_array(nvlist_prtctl_t,
	* void ()(nvlist_prtctl_t ctl, void private, const char *name,
	* xxxtype value, uint_t count))
	*
	* where xxxtype is the C datatype corresponding to xxx, eg int8_t for "int8"
	* and char * for "string". The function that is appointed to render the
	* specified datatype receives as arguments the cookie, the nvlist
	* member name, the value of that member (or a pointer for array function),
	* and (for array rendering functions) a count of the number of elements.
	*/

	typedef struct nvlist_prtctl nvlist_prtctl_t; / opaque */

	enum nvlist_indent_mode {
	NVLIST_INDENT_ABS, /* Absolute indentation */
	NVLIST_INDENT_TABBED /* Indent with tabstops */
	};

	-extern nvlist_prtctl_t nvlist_prtctl_alloc(void);
	-extern void nvlist_prtctl_free(nvlist_prtctl_t);
	-extern void nvlist_prt(nvlist_t *, nvlist_prtctl_t);
	+_LIBNVPAIR_H nvlist_prtctl_t nvlist_prtctl_alloc(void);
	+_LIBNVPAIR_H void nvlist_prtctl_free(nvlist_prtctl_t);
	+_LIBNVPAIR_H void nvlist_prt(nvlist_t *, nvlist_prtctl_t);

	/* Output stream */
	-extern void nvlist_prtctl_setdest(nvlist_prtctl_t, FILE *);
	-extern FILE *nvlist_prtctl_getdest(nvlist_prtctl_t);
	+_LIBNVPAIR_H void nvlist_prtctl_setdest(nvlist_prtctl_t, FILE *);
	+_LIBNVPAIR_H FILE *nvlist_prtctl_getdest(nvlist_prtctl_t);

	/* Indentation mode, start indent, indent increment; default tabbed/0/1 */
	-extern void nvlist_prtctl_setindent(nvlist_prtctl_t, enum nvlist_indent_mode,
	- int, int);
	-extern void nvlist_prtctl_doindent(nvlist_prtctl_t, int);
	+_LIBNVPAIR_H void nvlist_prtctl_setindent(nvlist_prtctl_t,
	+ enum nvlist_indent_mode, int, int);
	+_LIBNVPAIR_H void nvlist_prtctl_doindent(nvlist_prtctl_t, int);

	enum nvlist_prtctl_fmt {
	NVLIST_FMT_MEMBER_NAME, /* name fmt; default "%s = " */
	NVLIST_FMT_MEMBER_POSTAMBLE, /* after nvlist member; default "\n" */
	NVLIST_FMT_BTWN_ARRAY /* between array members; default " " */
	};

	-extern void nvlist_prtctl_setfmt(nvlist_prtctl_t, enum nvlist_prtctl_fmt,
	+_LIBNVPAIR_H void nvlist_prtctl_setfmt(nvlist_prtctl_t, enum nvlist_prtctl_fmt,
	const char *);
	-extern void nvlist_prtctl_dofmt(nvlist_prtctl_t, enum nvlist_prtctl_fmt, ...);
	+_LIBNVPAIR_H void nvlist_prtctl_dofmt(nvlist_prtctl_t, enum nvlist_prtctl_fmt,
	+ ...);

	/*
	* Function prototypes for interfaces that appoint a new rendering function
	* for single-valued nvlist members.
	*
	* A replacement function receives arguments as follows:
	*
	* nvlist_prtctl_t Print control structure; do not change preferences
	* for this object from a print callback function.
	*
	* void * The function-private cookie argument registered
	* when the replacement function was appointed.
	*
	* nvlist_t * The full nvlist that is being processed. The
	* rendering function is called to render a single
	* member (name and value passed as below) but it may
	* want to reference or incorporate other aspects of
	* the full nvlist.
	*
	* const char * Member name to render
	*
	* valtype Value of the member to render
	*
	* The function must return non-zero if it has rendered output for this
	* member, or 0 if it wants to default to standard rendering for this
	* one member.
	*/

	#define NVLIST_PRINTCTL_SVDECL(funcname, valtype) \
	- extern void funcname(nvlist_prtctl_t, \
	+ _LIBNVPAIR_H void funcname(nvlist_prtctl_t, \
	int ()(nvlist_prtctl_t, void , nvlist_t , const char , valtype), \
	void *)

	NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_boolean, int);
	NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_boolean_value, boolean_t);
	NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_byte, uchar_t);
	NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_int8, int8_t);
	NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_uint8, uint8_t);
	NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_int16, int16_t);
	NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_uint16, uint16_t);
	NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_int32, int32_t);
	NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_uint32, uint32_t);
	NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_int64, int64_t);
	NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_uint64, uint64_t);
	NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_double, double);
	NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_string, char *);
	NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_hrtime, hrtime_t);
	NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_nvlist, nvlist_t *);

	#undef NVLIST_PRINTCTL_SVDECL /* was just for "clarity" above */

	/*
	* Function prototypes for interfaces that appoint a new rendering function
	* for array-valued nvlist members.
	*
	* One additional argument is taken: uint_t for the number of array elements
	*
	* Return values as above.
	*/
	#define NVLIST_PRINTCTL_AVDECL(funcname, vtype) \
	- extern void funcname(nvlist_prtctl_t, \
	+ _LIBNVPAIR_H void funcname(nvlist_prtctl_t, \
	int ()(nvlist_prtctl_t, void , nvlist_t , const char , vtype, uint_t), \
	void *)

	NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_boolean_array, boolean_t *);
	NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_byte_array, uchar_t *);
	NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_int8_array, int8_t *);
	NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_uint8_array, uint8_t *);
	NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_int16_array, int16_t *);
	NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_uint16_array, uint16_t *);
	NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_int32_array, int32_t *);
	NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_uint32_array, uint32_t *);
	NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_int64_array, int64_t *);
	NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_uint64_array, uint64_t *);
	NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_string_array, char **);
	NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_nvlist_array, nvlist_t **);

	#undef NVLIST_PRINTCTL_AVDECL /* was just for "clarity" above */

	#ifdef __cplusplus
	}
	#endif

	#endif /* _LIBNVPAIR_H */
	diff --git a/sys/contrib/openzfs/include/libzfs_core.h b/sys/contrib/openzfs/include/libzfs_core.h
	index 34161a06fb45..83d8211ab615 100644
	--- a/sys/contrib/openzfs/include/libzfs_core.h
	+++ b/sys/contrib/openzfs/include/libzfs_core.h
	@@ -1,144 +1,150 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	/*
	* Copyright (c) 2012, 2020 by Delphix. All rights reserved.
	* Copyright (c) 2017 Datto Inc.
	* Copyright 2017 RackTop Systems.
	* Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	*/

	#ifndef _LIBZFS_CORE_H
	-#define _LIBZFS_CORE_H
	+#define _LIBZFS_CORE_H extern __attribute__((visibility("default")))

	#include <libnvpair.h>
	#include <sys/param.h>
	#include <sys/types.h>
	#include <sys/fs/zfs.h>

	#ifdef __cplusplus
	extern "C" {
	#endif

	-int libzfs_core_init(void);
	-void libzfs_core_fini(void);
	+_LIBZFS_CORE_H int libzfs_core_init(void);
	+_LIBZFS_CORE_H void libzfs_core_fini(void);

	/*
	- * NB: this type should be kept binary compatible with dmu_objset_type_t.
	+ * NB: this type should be kept binary-compatible with dmu_objset_type_t.
	*/
	enum lzc_dataset_type {
	LZC_DATSET_TYPE_ZFS = 2,
	LZC_DATSET_TYPE_ZVOL
	};

	-int lzc_snapshot(nvlist_t , nvlist_t , nvlist_t **);
	-int lzc_create(const char , enum lzc_dataset_type, nvlist_t , uint8_t *,
	+_LIBZFS_CORE_H int lzc_snapshot(nvlist_t , nvlist_t , nvlist_t **);
	+_LIBZFS_CORE_H int lzc_create(const char , enum lzc_dataset_type, nvlist_t ,
	+ uint8_t *, uint_t);
	+_LIBZFS_CORE_H int lzc_clone(const char , const char , nvlist_t *);
	+_LIBZFS_CORE_H int lzc_promote(const char , char , int);
	+_LIBZFS_CORE_H int lzc_destroy_snaps(nvlist_t , boolean_t, nvlist_t *);
	+_LIBZFS_CORE_H int lzc_bookmark(nvlist_t , nvlist_t *);
	+_LIBZFS_CORE_H int lzc_get_bookmarks(const char , nvlist_t , nvlist_t **);
	+_LIBZFS_CORE_H int lzc_get_bookmark_props(const char , nvlist_t *);
	+_LIBZFS_CORE_H int lzc_destroy_bookmarks(nvlist_t , nvlist_t *);
	+_LIBZFS_CORE_H int lzc_load_key(const char , boolean_t, uint8_t , uint_t);
	+_LIBZFS_CORE_H int lzc_unload_key(const char *);
	+_LIBZFS_CORE_H int lzc_change_key(const char , uint64_t, nvlist_t , uint8_t *,
	uint_t);
	-int lzc_clone(const char , const char , nvlist_t *);
	-int lzc_promote(const char , char , int);
	-int lzc_destroy_snaps(nvlist_t , boolean_t, nvlist_t *);
	-int lzc_bookmark(nvlist_t , nvlist_t *);
	-int lzc_get_bookmarks(const char , nvlist_t , nvlist_t **);
	-int lzc_get_bookmark_props(const char , nvlist_t *);
	-int lzc_destroy_bookmarks(nvlist_t , nvlist_t *);
	-int lzc_load_key(const char , boolean_t, uint8_t , uint_t);
	-int lzc_unload_key(const char *);
	-int lzc_change_key(const char , uint64_t, nvlist_t , uint8_t *, uint_t);
	-int lzc_initialize(const char , pool_initialize_func_t, nvlist_t ,
	- nvlist_t **);
	-int lzc_trim(const char *, pool_trim_func_t, uint64_t, boolean_t,
	+_LIBZFS_CORE_H int lzc_initialize(const char *, pool_initialize_func_t,
	nvlist_t , nvlist_t *);
	-int lzc_redact(const char , const char , nvlist_t *);
	+_LIBZFS_CORE_H int lzc_trim(const char *, pool_trim_func_t, uint64_t, boolean_t,
	+ nvlist_t , nvlist_t *);
	+_LIBZFS_CORE_H int lzc_redact(const char , const char , nvlist_t *);

	-int lzc_snaprange_space(const char , const char , uint64_t *);
	+_LIBZFS_CORE_H int lzc_snaprange_space(const char , const char , uint64_t *);

	-int lzc_hold(nvlist_t , int, nvlist_t *);
	-int lzc_release(nvlist_t , nvlist_t *);
	-int lzc_get_holds(const char , nvlist_t *);
	+_LIBZFS_CORE_H int lzc_hold(nvlist_t , int, nvlist_t *);
	+_LIBZFS_CORE_H int lzc_release(nvlist_t , nvlist_t *);
	+_LIBZFS_CORE_H int lzc_get_holds(const char , nvlist_t *);

	enum lzc_send_flags {
	LZC_SEND_FLAG_EMBED_DATA = 1 << 0,
	LZC_SEND_FLAG_LARGE_BLOCK = 1 << 1,
	LZC_SEND_FLAG_COMPRESS = 1 << 2,
	LZC_SEND_FLAG_RAW = 1 << 3,
	LZC_SEND_FLAG_SAVED = 1 << 4,
	};

	-int lzc_send(const char , const char , int, enum lzc_send_flags);
	-int lzc_send_resume(const char , const char , int,
	+_LIBZFS_CORE_H int lzc_send(const char , const char , int,
	+ enum lzc_send_flags);
	+_LIBZFS_CORE_H int lzc_send_resume(const char , const char , int,
	enum lzc_send_flags, uint64_t, uint64_t);
	-int lzc_send_space(const char , const char , enum lzc_send_flags, uint64_t *);
	+_LIBZFS_CORE_H int lzc_send_space(const char , const char ,
	+ enum lzc_send_flags, uint64_t *);

	struct dmu_replay_record;

	-int lzc_send_redacted(const char , const char , int, enum lzc_send_flags,
	- const char *);
	-int lzc_send_resume_redacted(const char , const char , int,
	+_LIBZFS_CORE_H int lzc_send_redacted(const char , const char , int,
	+ enum lzc_send_flags, const char *);
	+_LIBZFS_CORE_H int lzc_send_resume_redacted(const char , const char , int,
	enum lzc_send_flags, uint64_t, uint64_t, const char *);
	-int lzc_receive(const char , nvlist_t , const char *, boolean_t, boolean_t,
	- int);
	-int lzc_receive_resumable(const char , nvlist_t , const char *, boolean_t,
	- boolean_t, int);
	-int lzc_receive_with_header(const char , nvlist_t , const char *, boolean_t,
	- boolean_t, boolean_t, int, const struct dmu_replay_record *);
	-int lzc_receive_one(const char , nvlist_t , const char *, boolean_t,
	- boolean_t, boolean_t, int, const struct dmu_replay_record *, int,
	+_LIBZFS_CORE_H int lzc_receive(const char , nvlist_t , const char *,
	+ boolean_t, boolean_t, int);
	+_LIBZFS_CORE_H int lzc_receive_resumable(const char , nvlist_t , const char *,
	+ boolean_t, boolean_t, int);
	+_LIBZFS_CORE_H int lzc_receive_with_header(const char , nvlist_t ,
	+ const char *, boolean_t, boolean_t, boolean_t, int,
	+ const struct dmu_replay_record *);
	+_LIBZFS_CORE_H int lzc_receive_one(const char , nvlist_t , const char *,
	+ boolean_t, boolean_t, boolean_t, int, const struct dmu_replay_record *, int,
	uint64_t , uint64_t , uint64_t , nvlist_t *);
	-int lzc_receive_with_cmdprops(const char , nvlist_t , nvlist_t *,
	- uint8_t , uint_t, const char , boolean_t, boolean_t, boolean_t, int,
	- const struct dmu_replay_record , int, uint64_t , uint64_t *,
	- uint64_t , nvlist_t *);
	-int lzc_send_space(const char , const char , enum lzc_send_flags, uint64_t *);
	-int lzc_send_space_resume_redacted(const char , const char ,
	+_LIBZFS_CORE_H int lzc_receive_with_cmdprops(const char , nvlist_t ,
	+ nvlist_t , uint8_t , uint_t, const char *, boolean_t, boolean_t,
	+ boolean_t, int, const struct dmu_replay_record , int, uint64_t ,
	+ uint64_t , uint64_t , nvlist_t **);
	+_LIBZFS_CORE_H int lzc_send_space(const char , const char ,
	+ enum lzc_send_flags, uint64_t *);
	+_LIBZFS_CORE_H int lzc_send_space_resume_redacted(const char , const char ,
	enum lzc_send_flags, uint64_t, uint64_t, uint64_t, const char *,
	int, uint64_t *);
	-uint64_t lzc_send_progress(int);
	+_LIBZFS_CORE_H uint64_t lzc_send_progress(int);

	-boolean_t lzc_exists(const char *);
	+_LIBZFS_CORE_H boolean_t lzc_exists(const char *);

	-int lzc_rollback(const char , char , int);
	-int lzc_rollback_to(const char , const char );
	+_LIBZFS_CORE_H int lzc_rollback(const char , char , int);
	+_LIBZFS_CORE_H int lzc_rollback_to(const char , const char );

	-int lzc_rename(const char , const char );
	-int lzc_destroy(const char *);
	+_LIBZFS_CORE_H int lzc_rename(const char , const char );
	+_LIBZFS_CORE_H int lzc_destroy(const char *);

	-int lzc_channel_program(const char , const char , uint64_t,
	- uint64_t, nvlist_t , nvlist_t *);
	-int lzc_channel_program_nosync(const char , const char , uint64_t,
	+_LIBZFS_CORE_H int lzc_channel_program(const char , const char , uint64_t,
	uint64_t, nvlist_t , nvlist_t *);
	+_LIBZFS_CORE_H int lzc_channel_program_nosync(const char , const char ,
	+ uint64_t, uint64_t, nvlist_t , nvlist_t *);

	-int lzc_sync(const char , nvlist_t , nvlist_t **);
	-int lzc_reopen(const char *, boolean_t);
	+_LIBZFS_CORE_H int lzc_sync(const char , nvlist_t , nvlist_t **);
	+_LIBZFS_CORE_H int lzc_reopen(const char *, boolean_t);

	-int lzc_pool_checkpoint(const char *);
	-int lzc_pool_checkpoint_discard(const char *);
	+_LIBZFS_CORE_H int lzc_pool_checkpoint(const char *);
	+_LIBZFS_CORE_H int lzc_pool_checkpoint_discard(const char *);

	-int lzc_wait(const char , zpool_wait_activity_t, boolean_t );
	-int lzc_wait_tag(const char , zpool_wait_activity_t, uint64_t, boolean_t );
	-int lzc_wait_fs(const char , zfs_wait_activity_t, boolean_t );
	+_LIBZFS_CORE_H int lzc_wait(const char , zpool_wait_activity_t, boolean_t );
	+_LIBZFS_CORE_H int lzc_wait_tag(const char *, zpool_wait_activity_t, uint64_t,
	+ boolean_t *);
	+_LIBZFS_CORE_H int lzc_wait_fs(const char , zfs_wait_activity_t, boolean_t );

	-int lzc_set_bootenv(const char , const nvlist_t );
	-int lzc_get_bootenv(const char , nvlist_t *);
	+_LIBZFS_CORE_H int lzc_set_bootenv(const char , const nvlist_t );
	+_LIBZFS_CORE_H int lzc_get_bootenv(const char , nvlist_t *);
	#ifdef __cplusplus
	}
	#endif

	#endif /* _LIBZFS_CORE_H */
	diff --git a/sys/contrib/openzfs/include/libzfsbootenv.h b/sys/contrib/openzfs/include/libzfsbootenv.h
	index b078b605db7f..cbc8751dc51b 100644
	--- a/sys/contrib/openzfs/include/libzfsbootenv.h
	+++ b/sys/contrib/openzfs/include/libzfsbootenv.h
	@@ -1,41 +1,43 @@
	/*
	* This file and its contents are supplied under the terms of the
	* Common Development and Distribution License ("CDDL"), version 1.0.
	* You may only use this file in accordance with the terms of version
	* 1.0 of the CDDL.
	*
	* A full copy of the text of the CDDL should have accompanied this
	* source. A copy of the CDDL is also available via the Internet at
	* http://www.illumos.org/license/CDDL.
	*/

	/*
	* Copyright 2020 Toomas Soome <tsoome@me.com>
	*/

	#ifndef _LIBZFSBOOTENV_H
	-#define _LIBZFSBOOTENV_H
	+#define _LIBZFSBOOTENV_H extern __attribute__((visibility("default")))

	#ifdef __cplusplus
	extern "C" {
	#endif

	typedef enum lzbe_flags {
	lzbe_add, /* add data to existing nvlist */
	lzbe_replace /* replace current nvlist */
	} lzbe_flags_t;

	-extern int lzbe_nvlist_get(const char , const char , void **);
	-extern int lzbe_nvlist_set(const char , const char , void *);
	-extern void lzbe_nvlist_free(void *);
	-extern int lzbe_add_pair(void , const char , const char , void , size_t);
	-extern int lzbe_remove_pair(void , const char );
	-extern int lzbe_set_boot_device(const char , lzbe_flags_t, const char );
	-extern int lzbe_get_boot_device(const char , char *);
	-extern int lzbe_bootenv_print(const char , const char , FILE *);
	+_LIBZFSBOOTENV_H int lzbe_nvlist_get(const char , const char , void **);
	+_LIBZFSBOOTENV_H int lzbe_nvlist_set(const char , const char , void *);
	+_LIBZFSBOOTENV_H void lzbe_nvlist_free(void *);
	+_LIBZFSBOOTENV_H int lzbe_add_pair(void , const char , const char , void ,
	+ size_t);
	+_LIBZFSBOOTENV_H int lzbe_remove_pair(void , const char );
	+_LIBZFSBOOTENV_H int lzbe_set_boot_device(const char *, lzbe_flags_t,
	+ const char *);
	+_LIBZFSBOOTENV_H int lzbe_get_boot_device(const char , char *);
	+_LIBZFSBOOTENV_H int lzbe_bootenv_print(const char , const char , FILE *);

	#ifdef __cplusplus
	}
	#endif

	#endif /* _LIBZFSBOOTENV_H */
	diff --git a/sys/contrib/openzfs/include/libzutil.h b/sys/contrib/openzfs/include/libzutil.h
	index 5b0927961800..ef17bd5426df 100644
	--- a/sys/contrib/openzfs/include/libzutil.h
	+++ b/sys/contrib/openzfs/include/libzutil.h
	@@ -1,167 +1,170 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2018 by Delphix. All rights reserved.
	*/

	#ifndef _LIBZUTIL_H
	#define _LIBZUTIL_H extern __attribute__((visibility("default")))

	#include <sys/nvpair.h>
	#include <sys/fs/zfs.h>

	#ifdef __cplusplus
	extern "C" {
	#endif

	/*
	* Default wait time for a device name to be created.
	*/
	#define DISK_LABEL_WAIT (30 * 1000) /* 30 seconds */


	/*
	* Pool Config Operations
	*
	* These are specific to the library libzfs or libzpool instance.
	*/
	typedef nvlist_t refresh_config_func_t(void , nvlist_t *);

	typedef int pool_active_func_t(void , const char , uint64_t, boolean_t *);

	typedef const struct pool_config_ops {
	refresh_config_func_t *pco_refresh_config;
	pool_active_func_t *pco_pool_active;
	} pool_config_ops_t;

	/*
	* An instance of pool_config_ops_t is expected in the caller's binary.
	*/
	_LIBZUTIL_H const pool_config_ops_t libzfs_config_ops;
	_LIBZUTIL_H const pool_config_ops_t libzpool_config_ops;

	typedef struct importargs {
	char *path; / a list of paths to search */
	int paths; /* number of paths to search */
	const char poolname; / name of a pool to find */
	uint64_t guid; /* guid of a pool to find */
	const char cachefile; / cachefile to use for import */
	boolean_t can_be_active; /* can the pool be active? */
	boolean_t scan; /* prefer scanning to libblkid cache */
	nvlist_t policy; / load policy (max txg, rewind, etc.) */
	} importargs_t;

	_LIBZUTIL_H nvlist_t zpool_search_import(void , importargs_t *,
	const pool_config_ops_t *);
	_LIBZUTIL_H int zpool_find_config(void , const char , nvlist_t **,
	importargs_t , const pool_config_ops_t );

	_LIBZUTIL_H const char * const * zpool_default_search_paths(size_t *count);
	_LIBZUTIL_H int zpool_read_label(int, nvlist_t *, int );
	_LIBZUTIL_H int zpool_label_disk_wait(const char *, int);

	struct udev_device;

	_LIBZUTIL_H int zfs_device_get_devid(struct udev_device , char , size_t);
	_LIBZUTIL_H int zfs_device_get_physical(struct udev_device , char , size_t);

	_LIBZUTIL_H void update_vdev_config_dev_strs(nvlist_t *);

	/*
	* Default device paths
	*/
	#define DISK_ROOT "/dev"
	#define UDISK_ROOT "/dev/disk"
	#define ZVOL_ROOT "/dev/zvol"

	_LIBZUTIL_H int zfs_append_partition(char *path, size_t max_len);
	_LIBZUTIL_H int zfs_resolve_shortname(const char name, char path,
	size_t pathlen);

	_LIBZUTIL_H char zfs_strip_partition(char );
	_LIBZUTIL_H char zfs_strip_path(char );

	_LIBZUTIL_H int zfs_strcmp_pathname(const char , const char , int);

	_LIBZUTIL_H boolean_t zfs_dev_is_dm(const char *);
	_LIBZUTIL_H boolean_t zfs_dev_is_whole_disk(const char *);
	_LIBZUTIL_H int zfs_dev_flush(int);
	_LIBZUTIL_H char zfs_get_underlying_path(const char );
	_LIBZUTIL_H char zfs_get_enclosure_sysfs_path(const char );

	_LIBZUTIL_H boolean_t is_mpath_whole_disk(const char *);

	_LIBZUTIL_H boolean_t zfs_isnumber(const char *);

	/*
	* Formats for iostat numbers. Examples: "12K", "30ms", "4B", "2321234", "-".
	*
	* ZFS_NICENUM_1024: Print kilo, mega, tera, peta, exa..
	* ZFS_NICENUM_BYTES: Print single bytes ("13B"), kilo, mega, tera...
	* ZFS_NICENUM_TIME: Print nanosecs, microsecs, millisecs, seconds...
	* ZFS_NICENUM_RAW: Print the raw number without any formatting
	* ZFS_NICENUM_RAWTIME: Same as RAW, but print dashes ('-') for zero.
	*/
	enum zfs_nicenum_format {
	ZFS_NICENUM_1024 = 0,
	ZFS_NICENUM_BYTES = 1,
	ZFS_NICENUM_TIME = 2,
	ZFS_NICENUM_RAW = 3,
	ZFS_NICENUM_RAWTIME = 4
	};

	/*
	* Convert a number to a human-readable form.
	*/
	_LIBZUTIL_H void zfs_nicebytes(uint64_t, char *, size_t);
	_LIBZUTIL_H void zfs_nicenum(uint64_t, char *, size_t);
	_LIBZUTIL_H void zfs_nicenum_format(uint64_t, char *, size_t,
	enum zfs_nicenum_format);
	_LIBZUTIL_H void zfs_nicetime(uint64_t, char *, size_t);
	_LIBZUTIL_H void zfs_niceraw(uint64_t, char *, size_t);

	#define nicenum(num, buf, size) zfs_nicenum(num, buf, size)

	_LIBZUTIL_H void zpool_dump_ddt(const ddt_stat_t , const ddt_histogram_t );
	_LIBZUTIL_H int zpool_history_unpack(char , uint64_t, uint64_t , nvlist_t ***,
	uint_t *);

	struct zfs_cmd;
	_LIBZUTIL_H int zfs_ioctl_fd(int fd, unsigned long request, struct zfs_cmd *zc);

	/*
	* List of colors to use
	*/
	#define ANSI_RED "\033[0;31m"
	#define ANSI_YELLOW "\033[0;33m"
	#define ANSI_RESET "\033[0m"
	#define ANSI_BOLD "\033[1m"

	_LIBZUTIL_H void color_start(char *color);
	_LIBZUTIL_H void color_end(void);
	_LIBZUTIL_H int printf_color(char color, char format, ...);

	+_LIBZUTIL_H const char zfs_basename(const char path);
	+_LIBZUTIL_H ssize_t zfs_dirnamelen(const char *path);
	+
	#ifdef __cplusplus
	}
	#endif

	#endif /* _LIBZUTIL_H */
	diff --git a/sys/contrib/openzfs/include/os/freebsd/spl/sys/kstat.h b/sys/contrib/openzfs/include/os/freebsd/spl/sys/kstat.h
	index f5157c7f4fe3..947dfee62393 100644
	--- a/sys/contrib/openzfs/include/os/freebsd/spl/sys/kstat.h
	+++ b/sys/contrib/openzfs/include/os/freebsd/spl/sys/kstat.h
	@@ -1,234 +1,230 @@
	/*
	* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
	* Copyright (C) 2007 The Regents of the University of California.
	* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
	* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
	* UCRL-CODE-235197
	*
	* This file is part of the SPL, Solaris Porting Layer.
	*
	* The SPL is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License as published by the
	* Free Software Foundation; either version 2 of the License, or (at your
	* option) any later version.
	*
	* The SPL is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* for more details.
	*
	* You should have received a copy of the GNU General Public License along
	* with the SPL. If not, see <http://www.gnu.org/licenses/>.
	*/

	#ifndef _SPL_KSTAT_H
	#define _SPL_KSTAT_H

	#include <sys/types.h>
	#ifndef _STANDALONE
	#include <sys/sysctl.h>
	#endif
	struct list_head {};
	#include <sys/mutex.h>
	#include <sys/proc.h>

	#define KSTAT_STRLEN 255
	#define KSTAT_RAW_MAX (128*1024)

	/*
	* For reference valid classes are:
	* disk, tape, net, controller, vm, kvm, hat, streams, kstat, misc
	*/

	#define KSTAT_TYPE_RAW 0 /* can be anything; ks_ndata >= 1 */
	#define KSTAT_TYPE_NAMED 1 /* name/value pair; ks_ndata >= 1 */
	#define KSTAT_TYPE_INTR 2 /* interrupt stats; ks_ndata == 1 */
	#define KSTAT_TYPE_IO 3 /* I/O stats; ks_ndata == 1 */
	#define KSTAT_TYPE_TIMER 4 /* event timer; ks_ndata >= 1 */
	#define KSTAT_NUM_TYPES 5

	#define KSTAT_DATA_CHAR 0
	#define KSTAT_DATA_INT32 1
	#define KSTAT_DATA_UINT32 2
	#define KSTAT_DATA_INT64 3
	#define KSTAT_DATA_UINT64 4
	#define KSTAT_DATA_LONG 5
	#define KSTAT_DATA_ULONG 6
	#define KSTAT_DATA_STRING 7
	#define KSTAT_NUM_DATAS 8

	#define KSTAT_INTR_HARD 0
	#define KSTAT_INTR_SOFT 1
	#define KSTAT_INTR_WATCHDOG 2
	#define KSTAT_INTR_SPURIOUS 3
	#define KSTAT_INTR_MULTSVC 4
	#define KSTAT_NUM_INTRS 5

	#define KSTAT_FLAG_VIRTUAL 0x01
	#define KSTAT_FLAG_VAR_SIZE 0x02
	#define KSTAT_FLAG_WRITABLE 0x04
	#define KSTAT_FLAG_PERSISTENT 0x08
	#define KSTAT_FLAG_DORMANT 0x10
	#define KSTAT_FLAG_INVALID 0x20
	#define KSTAT_FLAG_LONGSTRINGS 0x40
	#define KSTAT_FLAG_NO_HEADERS 0x80

	#define KS_MAGIC 0x9d9d9d9d

	/* Dynamic updates */
	#define KSTAT_READ 0
	#define KSTAT_WRITE 1

	struct kstat_s;
	typedef struct kstat_s kstat_t;

	typedef int kid_t; /* unique kstat id */
	typedef int kstat_update_t(struct kstat_s , int); / dynamic update cb */

	struct seq_file {
	char *sf_buf;
	size_t sf_size;
	};

	void seq_printf(struct seq_file m, const char fmt, ...);


	typedef struct kstat_module {
	char ksm_name[KSTAT_STRLEN+1]; /* module name */
	struct list_head ksm_module_list; /* module linkage */
	struct list_head ksm_kstat_list; /* list of kstat entries */
	struct proc_dir_entry ksm_proc; / proc entry */
	} kstat_module_t;

	typedef struct kstat_raw_ops {
	int (headers)(char buf, size_t size);
	int (seq_headers)(struct seq_file );
	int (data)(char buf, size_t size, void *data);
	void (addr)(kstat_t *ksp, loff_t index);
	} kstat_raw_ops_t;

	struct kstat_s {
	int ks_magic; /* magic value */
	kid_t ks_kid; /* unique kstat ID */
	hrtime_t ks_crtime; /* creation time */
	hrtime_t ks_snaptime; /* last access time */
	char ks_module[KSTAT_STRLEN+1]; /* provider module name */
	int ks_instance; /* provider module instance */
	char ks_name[KSTAT_STRLEN+1]; /* kstat name */
	char ks_class[KSTAT_STRLEN+1]; /* kstat class */
	uchar_t ks_type; /* kstat data type */
	uchar_t ks_flags; /* kstat flags */
	void ks_data; / kstat type-specific data */
	uint_t ks_ndata; /* # of data records */
	size_t ks_data_size; /* size of kstat data section */
	kstat_update_t ks_update; / dynamic updates */
	void ks_private; / private data */
	void ks_private1; / private data */
	kmutex_t ks_private_lock; /* kstat private data lock */
	kmutex_t ks_lock; / kstat data lock */
	struct list_head ks_list; /* kstat linkage */
	kstat_module_t ks_owner; / kstat module linkage */
	kstat_raw_ops_t ks_raw_ops; /* ops table for raw type */
	char ks_raw_buf; / buf used for raw ops */
	size_t ks_raw_bufsize; /* size of raw ops buffer */
	#ifndef _STANDALONE
	struct sysctl_ctx_list ks_sysctl_ctx;
	struct sysctl_oid *ks_sysctl_root;
	#endif /* _STANDALONE */
	};

	typedef struct kstat_named_s {
	char name[KSTAT_STRLEN]; /* name of counter */
	uchar_t data_type; /* data type */
	union {
	char c[16]; /* 128-bit int */
	int32_t i32; /* 32-bit signed int */
	uint32_t ui32; /* 32-bit unsigned int */
	int64_t i64; /* 64-bit signed int */
	uint64_t ui64; /* 64-bit unsigned int */
	long l; /* native signed long */
	ulong_t ul; /* native unsigned long */
	struct {
	union {
	char ptr; / NULL-term string */
	char __pad[8]; /* 64-bit padding */
	} addr;
	uint32_t len; /* # bytes for strlen + '\0' */
	} string;
	} value;
	} kstat_named_t;

	#define KSTAT_NAMED_STR_PTR(knptr) ((knptr)->value.string.addr.ptr)
	#define KSTAT_NAMED_STR_BUFLEN(knptr) ((knptr)->value.string.len)

	typedef struct kstat_intr {
	uint_t intrs[KSTAT_NUM_INTRS];
	} kstat_intr_t;

	typedef struct kstat_io {
	u_longlong_t nread; /* number of bytes read */
	u_longlong_t nwritten; /* number of bytes written */
	uint_t reads; /* number of read operations */
	uint_t writes; /* number of write operations */
	hrtime_t wtime; /* cumulative wait (pre-service) time */
	hrtime_t wlentime; /* cumulative wait lentime product /
	hrtime_t wlastupdate; /* last time wait queue changed */
	hrtime_t rtime; /* cumulative run (service) time */
	hrtime_t rlentime; /* cumulative run lengthtime product /
	hrtime_t rlastupdate; /* last time run queue changed */
	uint_t wcnt; /* count of elements in wait state */
	uint_t rcnt; /* count of elements in run state */
	} kstat_io_t;

	typedef struct kstat_timer {
	char name[KSTAT_STRLEN+1]; /* event name */
	u_longlong_t num_events; /* number of events */
	hrtime_t elapsed_time; /* cumulative elapsed time */
	hrtime_t min_time; /* shortest event duration */
	hrtime_t max_time; /* longest event duration */
	hrtime_t start_time; /* previous event start time */
	hrtime_t stop_time; /* previous event stop time */
	} kstat_timer_t;

	int spl_kstat_init(void);
	void spl_kstat_fini(void);

	extern void __kstat_set_raw_ops(kstat_t *ksp,
	int (headers)(char buf, size_t size),
	int (data)(char buf, size_t size, void *data),
	void* (addr)(kstat_t ksp, loff_t index));

	extern void __kstat_set_seq_raw_ops(kstat_t *ksp,
	int (headers)(struct seq_file ),
	int (data)(char buf, size_t size, void *data),
	void* (addr)(kstat_t ksp, loff_t index));


	extern kstat_t __kstat_create(const char ks_module, int ks_instance,
	const char ks_name, const char ks_class, uchar_t ks_type,
	uint_t ks_ndata, uchar_t ks_flags);

	extern void __kstat_install(kstat_t *ksp);
	extern void __kstat_delete(kstat_t *ksp);
	-extern void kstat_waitq_enter(kstat_io_t *);
	-extern void kstat_waitq_exit(kstat_io_t *);
	-extern void kstat_runq_enter(kstat_io_t *);
	-extern void kstat_runq_exit(kstat_io_t *);

	#define kstat_set_seq_raw_ops(k, h, d, a) \
	__kstat_set_seq_raw_ops(k, h, d, a)
	#define kstat_set_raw_ops(k, h, d, a) \
	__kstat_set_raw_ops(k, h, d, a)
	#ifndef _STANDALONE
	#define kstat_create(m, i, n, c, t, s, f) \
	__kstat_create(m, i, n, c, t, s, f)

	#define kstat_install(k) __kstat_install(k)
	#define kstat_delete(k) __kstat_delete(k)
	#else
	#define kstat_create(m, i, n, c, t, s, f) ((kstat_t *)0)
	#define kstat_install(k)
	#define kstat_delete(k)
	#endif

	#endif /* _SPL_KSTAT_H */
	diff --git a/sys/contrib/openzfs/include/os/linux/spl/sys/kstat.h b/sys/contrib/openzfs/include/os/linux/spl/sys/kstat.h
	index 905d8257c8d3..928f70757545 100644
	--- a/sys/contrib/openzfs/include/os/linux/spl/sys/kstat.h
	+++ b/sys/contrib/openzfs/include/os/linux/spl/sys/kstat.h
	@@ -1,222 +1,218 @@
	/*
	* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
	* Copyright (C) 2007 The Regents of the University of California.
	* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
	* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
	* UCRL-CODE-235197
	*
	* This file is part of the SPL, Solaris Porting Layer.
	*
	* The SPL is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License as published by the
	* Free Software Foundation; either version 2 of the License, or (at your
	* option) any later version.
	*
	* The SPL is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* for more details.
	*
	* You should have received a copy of the GNU General Public License along
	* with the SPL. If not, see <http://www.gnu.org/licenses/>.
	*/

	#ifndef _SPL_KSTAT_H
	#define _SPL_KSTAT_H

	#include <linux/module.h>
	#include <sys/types.h>
	#include <sys/time.h>
	#include <sys/kmem.h>
	#include <sys/mutex.h>
	#include <sys/proc.h>

	#define KSTAT_STRLEN 255
	#define KSTAT_RAW_MAX (128*1024)

	/*
	* For reference valid classes are:
	* disk, tape, net, controller, vm, kvm, hat, streams, kstat, misc
	*/

	#define KSTAT_TYPE_RAW 0 /* can be anything; ks_ndata >= 1 */
	#define KSTAT_TYPE_NAMED 1 /* name/value pair; ks_ndata >= 1 */
	#define KSTAT_TYPE_INTR 2 /* interrupt stats; ks_ndata == 1 */
	#define KSTAT_TYPE_IO 3 /* I/O stats; ks_ndata == 1 */
	#define KSTAT_TYPE_TIMER 4 /* event timer; ks_ndata >= 1 */
	#define KSTAT_NUM_TYPES 5

	#define KSTAT_DATA_CHAR 0
	#define KSTAT_DATA_INT32 1
	#define KSTAT_DATA_UINT32 2
	#define KSTAT_DATA_INT64 3
	#define KSTAT_DATA_UINT64 4
	#define KSTAT_DATA_LONG 5
	#define KSTAT_DATA_ULONG 6
	#define KSTAT_DATA_STRING 7
	#define KSTAT_NUM_DATAS 8

	#define KSTAT_INTR_HARD 0
	#define KSTAT_INTR_SOFT 1
	#define KSTAT_INTR_WATCHDOG 2
	#define KSTAT_INTR_SPURIOUS 3
	#define KSTAT_INTR_MULTSVC 4
	#define KSTAT_NUM_INTRS 5

	#define KSTAT_FLAG_VIRTUAL 0x01
	#define KSTAT_FLAG_VAR_SIZE 0x02
	#define KSTAT_FLAG_WRITABLE 0x04
	#define KSTAT_FLAG_PERSISTENT 0x08
	#define KSTAT_FLAG_DORMANT 0x10
	#define KSTAT_FLAG_INVALID 0x20
	#define KSTAT_FLAG_LONGSTRINGS 0x40
	#define KSTAT_FLAG_NO_HEADERS 0x80

	#define KS_MAGIC 0x9d9d9d9d

	/* Dynamic updates */
	#define KSTAT_READ 0
	#define KSTAT_WRITE 1

	struct kstat_s;
	typedef struct kstat_s kstat_t;

	typedef int kid_t; /* unique kstat id */
	typedef int kstat_update_t(struct kstat_s , int); / dynamic update cb */

	typedef struct kstat_module {
	char ksm_name[KSTAT_STRLEN+1]; /* module name */
	struct list_head ksm_module_list; /* module linkage */
	struct list_head ksm_kstat_list; /* list of kstat entries */
	struct proc_dir_entry ksm_proc; / proc entry */
	} kstat_module_t;

	typedef struct kstat_raw_ops {
	int (headers)(char buf, size_t size);
	int (data)(char buf, size_t size, void *data);
	void (addr)(kstat_t *ksp, loff_t index);
	} kstat_raw_ops_t;

	typedef struct kstat_proc_entry {
	char kpe_name[KSTAT_STRLEN+1]; /* kstat name */
	char kpe_module[KSTAT_STRLEN+1]; /* provider module name */
	kstat_module_t kpe_owner; / kstat module linkage */
	struct list_head kpe_list; /* kstat linkage */
	struct proc_dir_entry kpe_proc; / procfs entry */
	} kstat_proc_entry_t;

	struct kstat_s {
	int ks_magic; /* magic value */
	kid_t ks_kid; /* unique kstat ID */
	hrtime_t ks_crtime; /* creation time */
	hrtime_t ks_snaptime; /* last access time */
	int ks_instance; /* provider module instance */
	char ks_class[KSTAT_STRLEN+1]; /* kstat class */
	uchar_t ks_type; /* kstat data type */
	uchar_t ks_flags; /* kstat flags */
	void ks_data; / kstat type-specific data */
	uint_t ks_ndata; /* # of data records */
	size_t ks_data_size; /* size of kstat data section */
	kstat_update_t ks_update; / dynamic updates */
	void ks_private; / private data */
	kmutex_t ks_private_lock; /* kstat private data lock */
	kmutex_t ks_lock; / kstat data lock */
	kstat_raw_ops_t ks_raw_ops; /* ops table for raw type */
	char ks_raw_buf; / buf used for raw ops */
	size_t ks_raw_bufsize; /* size of raw ops buffer */
	kstat_proc_entry_t ks_proc; /* data for procfs entry */
	};

	typedef struct kstat_named_s {
	char name[KSTAT_STRLEN]; /* name of counter */
	uchar_t data_type; /* data type */
	union {
	char c[16]; /* 128-bit int */
	int32_t i32; /* 32-bit signed int */
	uint32_t ui32; /* 32-bit unsigned int */
	int64_t i64; /* 64-bit signed int */
	uint64_t ui64; /* 64-bit unsigned int */
	long l; /* native signed long */
	ulong_t ul; /* native unsigned long */
	struct {
	union {
	char ptr; / NULL-term string */
	char __pad[8]; /* 64-bit padding */
	} addr;
	uint32_t len; /* # bytes for strlen + '\0' */
	} string;
	} value;
	} kstat_named_t;

	#define KSTAT_NAMED_STR_PTR(knptr) ((knptr)->value.string.addr.ptr)
	#define KSTAT_NAMED_STR_BUFLEN(knptr) ((knptr)->value.string.len)

	#ifdef HAVE_PROC_OPS_STRUCT
	typedef struct proc_ops kstat_proc_op_t;
	#else
	typedef struct file_operations kstat_proc_op_t;
	#endif

	typedef struct kstat_intr {
	uint_t intrs[KSTAT_NUM_INTRS];
	} kstat_intr_t;

	typedef struct kstat_io {
	u_longlong_t nread; /* number of bytes read */
	u_longlong_t nwritten; /* number of bytes written */
	uint_t reads; /* number of read operations */
	uint_t writes; /* number of write operations */
	hrtime_t wtime; /* cumulative wait (pre-service) time */
	hrtime_t wlentime; /* cumulative wait lentime product /
	hrtime_t wlastupdate; /* last time wait queue changed */
	hrtime_t rtime; /* cumulative run (service) time */
	hrtime_t rlentime; /* cumulative run lengthtime product /
	hrtime_t rlastupdate; /* last time run queue changed */
	uint_t wcnt; /* count of elements in wait state */
	uint_t rcnt; /* count of elements in run state */
	} kstat_io_t;

	typedef struct kstat_timer {
	char name[KSTAT_STRLEN+1]; /* event name */
	u_longlong_t num_events; /* number of events */
	hrtime_t elapsed_time; /* cumulative elapsed time */
	hrtime_t min_time; /* shortest event duration */
	hrtime_t max_time; /* longest event duration */
	hrtime_t start_time; /* previous event start time */
	hrtime_t stop_time; /* previous event stop time */
	} kstat_timer_t;

	int spl_kstat_init(void);
	void spl_kstat_fini(void);

	extern void __kstat_set_raw_ops(kstat_t *ksp,
	int (headers)(char buf, size_t size),
	int (data)(char buf, size_t size, void *data),
	void* (addr)(kstat_t ksp, loff_t index));

	extern kstat_t __kstat_create(const char ks_module, int ks_instance,
	const char ks_name, const char ks_class, uchar_t ks_type,
	uint_t ks_ndata, uchar_t ks_flags);

	extern void kstat_proc_entry_init(kstat_proc_entry_t *kpep,
	const char module, const char name);
	extern void kstat_proc_entry_delete(kstat_proc_entry_t *kpep);
	extern void kstat_proc_entry_install(kstat_proc_entry_t *kpep, mode_t mode,
	const kstat_proc_op_t file_ops, void data);

	extern void __kstat_install(kstat_t *ksp);
	extern void __kstat_delete(kstat_t *ksp);
	-extern void kstat_waitq_enter(kstat_io_t *);
	-extern void kstat_waitq_exit(kstat_io_t *);
	-extern void kstat_runq_enter(kstat_io_t *);
	-extern void kstat_runq_exit(kstat_io_t *);

	#define kstat_set_raw_ops(k, h, d, a) \
	__kstat_set_raw_ops(k, h, d, a)
	#define kstat_create(m, i, n, c, t, s, f) \
	__kstat_create(m, i, n, c, t, s, f)

	#define kstat_install(k) __kstat_install(k)
	#define kstat_delete(k) __kstat_delete(k)

	#endif /* _SPL_KSTAT_H */
	diff --git a/sys/contrib/openzfs/include/sys/arc_impl.h b/sys/contrib/openzfs/include/sys/arc_impl.h
	index 94123fc10e67..c01da46e01e3 100644
	--- a/sys/contrib/openzfs/include/sys/arc_impl.h
	+++ b/sys/contrib/openzfs/include/sys/arc_impl.h
	@@ -1,948 +1,948 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2013, Delphix. All rights reserved.
	* Copyright (c) 2013, Saso Kiselkov. All rights reserved.
	* Copyright (c) 2013, Nexenta Systems, Inc. All rights reserved.
	* Copyright (c) 2020, George Amanakis. All rights reserved.
	*/

	#ifndef _SYS_ARC_IMPL_H
	#define _SYS_ARC_IMPL_H

	#include <sys/arc.h>
	#include <sys/zio_crypt.h>
	#include <sys/zthr.h>
	#include <sys/aggsum.h>

	#ifdef __cplusplus
	extern "C" {
	#endif

	/*
	* Note that buffers can be in one of 6 states:
	* ARC_anon - anonymous (discussed below)
	* ARC_mru - recently used, currently cached
	* ARC_mru_ghost - recently used, no longer in cache
	* ARC_mfu - frequently used, currently cached
	* ARC_mfu_ghost - frequently used, no longer in cache
	* ARC_l2c_only - exists in L2ARC but not other states
	* When there are no active references to the buffer, they are
	* are linked onto a list in one of these arc states. These are
	* the only buffers that can be evicted or deleted. Within each
	* state there are multiple lists, one for meta-data and one for
	* non-meta-data. Meta-data (indirect blocks, blocks of dnodes,
	* etc.) is tracked separately so that it can be managed more
	* explicitly: favored over data, limited explicitly.
	*
	* Anonymous buffers are buffers that are not associated with
	* a DVA. These are buffers that hold dirty block copies
	* before they are written to stable storage. By definition,
	* they are "ref'd" and are considered part of arc_mru
	* that cannot be freed. Generally, they will acquire a DVA
	* as they are written and migrate onto the arc_mru list.
	*
	* The ARC_l2c_only state is for buffers that are in the second
	* level ARC but no longer in any of the ARC_m* lists. The second
	* level ARC itself may also contain buffers that are in any of
	* the ARC_m* states - meaning that a buffer can exist in two
	* places. The reason for the ARC_l2c_only state is to keep the
	* buffer header in the hash table, so that reads that hit the
	* second level ARC benefit from these fast lookups.
	*/

	typedef struct arc_state {
	/*
	* list of evictable buffers
	*/
	- multilist_t *arcs_list[ARC_BUFC_NUMTYPES];
	+ multilist_t arcs_list[ARC_BUFC_NUMTYPES];
	+ /*
	+ * supports the "dbufs" kstat
	+ */
	+ arc_state_type_t arcs_state;
	/*
	* total amount of evictable data in this state
	*/
	- zfs_refcount_t arcs_esize[ARC_BUFC_NUMTYPES];
	+ zfs_refcount_t arcs_esize[ARC_BUFC_NUMTYPES] ____cacheline_aligned;
	/*
	* total amount of data in this state; this includes: evictable,
	* non-evictable, ARC_BUFC_DATA, and ARC_BUFC_METADATA.
	*/
	zfs_refcount_t arcs_size;
	- /*
	- * supports the "dbufs" kstat
	- */
	- arc_state_type_t arcs_state;
	} arc_state_t;

	typedef struct arc_callback arc_callback_t;

	struct arc_callback {
	void *acb_private;
	arc_read_done_func_t *acb_done;
	arc_buf_t *acb_buf;
	boolean_t acb_encrypted;
	boolean_t acb_compressed;
	boolean_t acb_noauth;
	boolean_t acb_nobuf;
	zbookmark_phys_t acb_zb;
	zio_t *acb_zio_dummy;
	zio_t *acb_zio_head;
	arc_callback_t *acb_next;
	};

	typedef struct arc_write_callback arc_write_callback_t;

	struct arc_write_callback {
	void *awcb_private;
	arc_write_done_func_t *awcb_ready;
	arc_write_done_func_t *awcb_children_ready;
	arc_write_done_func_t *awcb_physdone;
	arc_write_done_func_t *awcb_done;
	arc_buf_t *awcb_buf;
	};

	/*
	* ARC buffers are separated into multiple structs as a memory saving measure:
	* - Common fields struct, always defined, and embedded within it:
	* - L2-only fields, always allocated but undefined when not in L2ARC
	* - L1-only fields, only allocated when in L1ARC
	*
	* Buffer in L1 Buffer only in L2
	* +------------------------+ +------------------------+
	* \| arc_buf_hdr_t \| \| arc_buf_hdr_t \|
	* \| \| \| \|
	* \| \| \| \|
	* \| \| \| \|
	* +------------------------+ +------------------------+
	* \| l2arc_buf_hdr_t \| \| l2arc_buf_hdr_t \|
	* \| (undefined if L1-only) \| \| \|
	* +------------------------+ +------------------------+
	* \| l1arc_buf_hdr_t \|
	* \| \|
	* \| \|
	* \| \|
	* \| \|
	* +------------------------+
	*
	* Because it's possible for the L2ARC to become extremely large, we can wind
	* up eating a lot of memory in L2ARC buffer headers, so the size of a header
	* is minimized by only allocating the fields necessary for an L1-cached buffer
	* when a header is actually in the L1 cache. The sub-headers (l1arc_buf_hdr and
	* l2arc_buf_hdr) are embedded rather than allocated separately to save a couple
	* words in pointers. arc_hdr_realloc() is used to switch a header between
	* these two allocation states.
	*/
	typedef struct l1arc_buf_hdr {
	kmutex_t b_freeze_lock;
	zio_cksum_t *b_freeze_cksum;

	arc_buf_t *b_buf;
	uint32_t b_bufcnt;
	/* for waiting on writes to complete */
	kcondvar_t b_cv;
	uint8_t b_byteswap;


	/* protected by arc state mutex */
	arc_state_t *b_state;
	multilist_node_t b_arc_node;

	/* updated atomically */
	clock_t b_arc_access;
	uint32_t b_mru_hits;
	uint32_t b_mru_ghost_hits;
	uint32_t b_mfu_hits;
	uint32_t b_mfu_ghost_hits;
	uint32_t b_l2_hits;

	/* self protecting */
	zfs_refcount_t b_refcnt;

	arc_callback_t *b_acb;
	abd_t *b_pabd;
	} l1arc_buf_hdr_t;

	typedef enum l2arc_dev_hdr_flags_t {
	L2ARC_DEV_HDR_EVICT_FIRST = (1 << 0) /* mirror of l2ad_first */
	} l2arc_dev_hdr_flags_t;

	/*
	* Pointer used in persistent L2ARC (for pointing to log blocks).
	*/
	typedef struct l2arc_log_blkptr {
	/*
	* Offset of log block within the device, in bytes
	*/
	uint64_t lbp_daddr;
	/*
	* Aligned payload size (in bytes) of the log block
	*/
	uint64_t lbp_payload_asize;
	/*
	* Offset in bytes of the first buffer in the payload
	*/
	uint64_t lbp_payload_start;
	/*
	* lbp_prop has the following format:
	* * logical size (in bytes)
	* * aligned (after compression) size (in bytes)
	* * compression algorithm (we always LZ4-compress l2arc logs)
	* * checksum algorithm (used for lbp_cksum)
	*/
	uint64_t lbp_prop;
	zio_cksum_t lbp_cksum; /* checksum of log */
	} l2arc_log_blkptr_t;

	/*
	* The persistent L2ARC device header.
	* Byte order of magic determines whether 64-bit bswap of fields is necessary.
	*/
	typedef struct l2arc_dev_hdr_phys {
	uint64_t dh_magic; /* L2ARC_DEV_HDR_MAGIC */
	uint64_t dh_version; /* Persistent L2ARC version */

	/*
	* Global L2ARC device state and metadata.
	*/
	uint64_t dh_spa_guid;
	uint64_t dh_vdev_guid;
	uint64_t dh_log_entries; /* mirror of l2ad_log_entries */
	uint64_t dh_evict; /* evicted offset in bytes */
	uint64_t dh_flags; /* l2arc_dev_hdr_flags_t */
	/*
	* Used in zdb.c for determining if a log block is valid, in the same
	* way that l2arc_rebuild() does.
	*/
	uint64_t dh_start; /* mirror of l2ad_start */
	uint64_t dh_end; /* mirror of l2ad_end */
	/*
	* Start of log block chain. [0] -> newest log, [1] -> one older (used
	* for initiating prefetch).
	*/
	l2arc_log_blkptr_t dh_start_lbps[2];
	/*
	* Aligned size of all log blocks as accounted by vdev_space_update().
	*/
	uint64_t dh_lb_asize; /* mirror of l2ad_lb_asize */
	uint64_t dh_lb_count; /* mirror of l2ad_lb_count */
	/*
	* Mirrors of vdev_trim_action_time and vdev_trim_state, used to
	* display when the cache device was fully trimmed for the last
	* time.
	*/
	uint64_t dh_trim_action_time;
	uint64_t dh_trim_state;
	const uint64_t dh_pad[30]; /* pad to 512 bytes */
	zio_eck_t dh_tail;
	} l2arc_dev_hdr_phys_t;
	CTASSERT_GLOBAL(sizeof (l2arc_dev_hdr_phys_t) == SPA_MINBLOCKSIZE);

	/*
	* A single ARC buffer header entry in a l2arc_log_blk_phys_t.
	*/
	typedef struct l2arc_log_ent_phys {
	dva_t le_dva; /* dva of buffer */
	uint64_t le_birth; /* birth txg of buffer */
	/*
	* le_prop has the following format:
	* * logical size (in bytes)
	* * physical (compressed) size (in bytes)
	* * compression algorithm
	* * object type (used to restore arc_buf_contents_t)
	* * protected status (used for encryption)
	* * prefetch status (used in l2arc_read_done())
	*/
	uint64_t le_prop;
	uint64_t le_daddr; /* buf location on l2dev */
	uint64_t le_complevel;
	/*
	* We pad the size of each entry to a power of 2 so that the size of
	* l2arc_log_blk_phys_t is power-of-2 aligned with SPA_MINBLOCKSHIFT,
	* because of the L2ARC_SET_*SIZE macros.
	*/
	const uint64_t le_pad[2]; /* pad to 64 bytes */
	} l2arc_log_ent_phys_t;

	#define L2ARC_LOG_BLK_MAX_ENTRIES (1022)

	/*
	* A log block of up to 1022 ARC buffer log entries, chained into the
	* persistent L2ARC metadata linked list. Byte order of magic determines
	* whether 64-bit bswap of fields is necessary.
	*/
	typedef struct l2arc_log_blk_phys {
	uint64_t lb_magic; /* L2ARC_LOG_BLK_MAGIC */
	/*
	* There are 2 chains (headed by dh_start_lbps[2]), and this field
	* points back to the previous block in this chain. We alternate
	* which chain we append to, so they are time-wise and offset-wise
	* interleaved, but that is an optimization rather than for
	* correctness.
	*/
	l2arc_log_blkptr_t lb_prev_lbp; /* pointer to prev log block */
	/*
	* Pad header section to 128 bytes
	*/
	uint64_t lb_pad[7];
	/* Payload */
	l2arc_log_ent_phys_t lb_entries[L2ARC_LOG_BLK_MAX_ENTRIES];
	} l2arc_log_blk_phys_t; /* 64K total */

	/*
	* The size of l2arc_log_blk_phys_t has to be power-of-2 aligned with
	* SPA_MINBLOCKSHIFT because of L2BLK_SET_*SIZE macros.
	*/
	CTASSERT_GLOBAL(IS_P2ALIGNED(sizeof (l2arc_log_blk_phys_t),
	1ULL << SPA_MINBLOCKSHIFT));
	CTASSERT_GLOBAL(sizeof (l2arc_log_blk_phys_t) >= SPA_MINBLOCKSIZE);
	CTASSERT_GLOBAL(sizeof (l2arc_log_blk_phys_t) <= SPA_MAXBLOCKSIZE);

	/*
	* These structures hold in-flight abd buffers for log blocks as they're being
	* written to the L2ARC device.
	*/
	typedef struct l2arc_lb_abd_buf {
	abd_t *abd;
	list_node_t node;
	} l2arc_lb_abd_buf_t;

	/*
	* These structures hold pointers to log blocks present on the L2ARC device.
	*/
	typedef struct l2arc_lb_ptr_buf {
	l2arc_log_blkptr_t *lb_ptr;
	list_node_t node;
	} l2arc_lb_ptr_buf_t;

	/* Macros for setting fields in le_prop and lbp_prop */
	#define L2BLK_GET_LSIZE(field) \
	BF64_GET_SB((field), 0, SPA_LSIZEBITS, SPA_MINBLOCKSHIFT, 1)
	#define L2BLK_SET_LSIZE(field, x) \
	BF64_SET_SB((field), 0, SPA_LSIZEBITS, SPA_MINBLOCKSHIFT, 1, x)
	#define L2BLK_GET_PSIZE(field) \
	BF64_GET_SB((field), 16, SPA_PSIZEBITS, SPA_MINBLOCKSHIFT, 1)
	#define L2BLK_SET_PSIZE(field, x) \
	BF64_SET_SB((field), 16, SPA_PSIZEBITS, SPA_MINBLOCKSHIFT, 1, x)
	#define L2BLK_GET_COMPRESS(field) \
	BF64_GET((field), 32, SPA_COMPRESSBITS)
	#define L2BLK_SET_COMPRESS(field, x) \
	BF64_SET((field), 32, SPA_COMPRESSBITS, x)
	#define L2BLK_GET_PREFETCH(field) BF64_GET((field), 39, 1)
	#define L2BLK_SET_PREFETCH(field, x) BF64_SET((field), 39, 1, x)
	#define L2BLK_GET_CHECKSUM(field) BF64_GET((field), 40, 8)
	#define L2BLK_SET_CHECKSUM(field, x) BF64_SET((field), 40, 8, x)
	#define L2BLK_GET_TYPE(field) BF64_GET((field), 48, 8)
	#define L2BLK_SET_TYPE(field, x) BF64_SET((field), 48, 8, x)
	#define L2BLK_GET_PROTECTED(field) BF64_GET((field), 56, 1)
	#define L2BLK_SET_PROTECTED(field, x) BF64_SET((field), 56, 1, x)
	#define L2BLK_GET_STATE(field) BF64_GET((field), 57, 4)
	#define L2BLK_SET_STATE(field, x) BF64_SET((field), 57, 4, x)

	#define PTR_SWAP(x, y) \
	do { \
	void *tmp = (x);\
	x = y; \
	y = tmp; \
	_NOTE(CONSTCOND)\
	} while (0)

	#define L2ARC_DEV_HDR_MAGIC 0x5a46534341434845LLU /* ASCII: "ZFSCACHE" */
	#define L2ARC_LOG_BLK_MAGIC 0x4c4f47424c4b4844LLU /* ASCII: "LOGBLKHD" */

	/*
	* L2ARC Internals
	*/
	typedef struct l2arc_dev {
	vdev_t l2ad_vdev; / vdev */
	spa_t l2ad_spa; / spa */
	uint64_t l2ad_hand; /* next write location */
	uint64_t l2ad_start; /* first addr on device */
	uint64_t l2ad_end; /* last addr on device */
	boolean_t l2ad_first; /* first sweep through */
	boolean_t l2ad_writing; /* currently writing */
	kmutex_t l2ad_mtx; /* lock for buffer list */
	list_t l2ad_buflist; /* buffer list */
	list_node_t l2ad_node; /* device list node */
	zfs_refcount_t l2ad_alloc; /* allocated bytes */
	/*
	* Persistence-related stuff
	*/
	l2arc_dev_hdr_phys_t l2ad_dev_hdr; / persistent device header */
	uint64_t l2ad_dev_hdr_asize; /* aligned hdr size */
	l2arc_log_blk_phys_t l2ad_log_blk; /* currently open log block */
	int l2ad_log_ent_idx; /* index into cur log blk */
	/* Number of bytes in current log block's payload */
	uint64_t l2ad_log_blk_payload_asize;
	/*
	* Offset (in bytes) of the first buffer in current log block's
	* payload.
	*/
	uint64_t l2ad_log_blk_payload_start;
	/* Flag indicating whether a rebuild is scheduled or is going on */
	boolean_t l2ad_rebuild;
	boolean_t l2ad_rebuild_cancel;
	boolean_t l2ad_rebuild_began;
	uint64_t l2ad_log_entries; /* entries per log blk */
	uint64_t l2ad_evict; /* evicted offset in bytes */
	/* List of pointers to log blocks present in the L2ARC device */
	list_t l2ad_lbptr_list;
	/*
	* Aligned size of all log blocks as accounted by vdev_space_update().
	*/
	zfs_refcount_t l2ad_lb_asize;
	/*
	* Number of log blocks present on the device.
	*/
	zfs_refcount_t l2ad_lb_count;
	boolean_t l2ad_trim_all; /* TRIM whole device */
	} l2arc_dev_t;

	/*
	* Encrypted blocks will need to be stored encrypted on the L2ARC
	* disk as they appear in the main pool. In order for this to work we
	* need to pass around the encryption parameters so they can be used
	* to write data to the L2ARC. This struct is only defined in the
	* arc_buf_hdr_t if the L1 header is defined and has the ARC_FLAG_ENCRYPTED
	* flag set.
	*/
	typedef struct arc_buf_hdr_crypt {
	abd_t b_rabd; / raw encrypted data */
	dmu_object_type_t b_ot; /* object type */
	uint32_t b_ebufcnt; /* count of encrypted buffers */

	/* dsobj for looking up encryption key for l2arc encryption */
	uint64_t b_dsobj;

	/* encryption parameters */
	uint8_t b_salt[ZIO_DATA_SALT_LEN];
	uint8_t b_iv[ZIO_DATA_IV_LEN];

	/*
	* Technically this could be removed since we will always be able to
	* get the mac from the bp when we need it. However, it is inconvenient
	* for callers of arc code to have to pass a bp in all the time. This
	* also allows us to assert that L2ARC data is properly encrypted to
	* match the data in the main storage pool.
	*/
	uint8_t b_mac[ZIO_DATA_MAC_LEN];
	} arc_buf_hdr_crypt_t;

	typedef struct l2arc_buf_hdr {
	/* protected by arc_buf_hdr mutex */
	l2arc_dev_t b_dev; / L2ARC device */
	uint64_t b_daddr; /* disk address, offset byte */
	uint32_t b_hits;
	arc_state_type_t b_arcs_state;
	list_node_t b_l2node;
	} l2arc_buf_hdr_t;

	typedef struct l2arc_write_callback {
	l2arc_dev_t l2wcb_dev; / device info */
	arc_buf_hdr_t l2wcb_head; / head of write buflist */
	/* in-flight list of log blocks */
	list_t l2wcb_abd_list;
	} l2arc_write_callback_t;

	struct arc_buf_hdr {
	/* protected by hash lock */
	dva_t b_dva;
	uint64_t b_birth;

	arc_buf_contents_t b_type;
	uint8_t b_complevel;
	uint8_t b_reserved1; /* used for 4 byte alignment */
	uint16_t b_reserved2; /* used for 4 byte alignment */
	arc_buf_hdr_t *b_hash_next;
	arc_flags_t b_flags;

	/*
	* This field stores the size of the data buffer after
	* compression, and is set in the arc's zio completion handlers.
	* It is in units of SPA_MINBLOCKSIZE (e.g. 1 == 512 bytes).
	*
	* While the block pointers can store up to 32MB in their psize
	* field, we can only store up to 32MB minus 512B. This is due
	* to the bp using a bias of 1, whereas we use a bias of 0 (i.e.
	* a field of zeros represents 512B in the bp). We can't use a
	* bias of 1 since we need to reserve a psize of zero, here, to
	* represent holes and embedded blocks.
	*
	* This isn't a problem in practice, since the maximum size of a
	* buffer is limited to 16MB, so we never need to store 32MB in
	* this field. Even in the upstream illumos code base, the
	* maximum size of a buffer is limited to 16MB.
	*/
	uint16_t b_psize;

	/*
	* This field stores the size of the data buffer before
	* compression, and cannot change once set. It is in units
	* of SPA_MINBLOCKSIZE (e.g. 2 == 1024 bytes)
	*/
	uint16_t b_lsize; /* immutable */
	uint64_t b_spa; /* immutable */

	/* L2ARC fields. Undefined when not in L2ARC. */
	l2arc_buf_hdr_t b_l2hdr;
	/* L1ARC fields. Undefined when in l2arc_only state */
	l1arc_buf_hdr_t b_l1hdr;
	/*
	* Encryption parameters. Defined only when ARC_FLAG_ENCRYPTED
	* is set and the L1 header exists.
	*/
	arc_buf_hdr_crypt_t b_crypt_hdr;
	};

	typedef struct arc_stats {
	kstat_named_t arcstat_hits;
	kstat_named_t arcstat_misses;
	kstat_named_t arcstat_demand_data_hits;
	kstat_named_t arcstat_demand_data_misses;
	kstat_named_t arcstat_demand_metadata_hits;
	kstat_named_t arcstat_demand_metadata_misses;
	kstat_named_t arcstat_prefetch_data_hits;
	kstat_named_t arcstat_prefetch_data_misses;
	kstat_named_t arcstat_prefetch_metadata_hits;
	kstat_named_t arcstat_prefetch_metadata_misses;
	kstat_named_t arcstat_mru_hits;
	kstat_named_t arcstat_mru_ghost_hits;
	kstat_named_t arcstat_mfu_hits;
	kstat_named_t arcstat_mfu_ghost_hits;
	kstat_named_t arcstat_deleted;
	/*
	* Number of buffers that could not be evicted because the hash lock
	* was held by another thread. The lock may not necessarily be held
	* by something using the same buffer, since hash locks are shared
	* by multiple buffers.
	*/
	kstat_named_t arcstat_mutex_miss;
	/*
	* Number of buffers skipped when updating the access state due to the
	* header having already been released after acquiring the hash lock.
	*/
	kstat_named_t arcstat_access_skip;
	/*
	* Number of buffers skipped because they have I/O in progress, are
	* indirect prefetch buffers that have not lived long enough, or are
	* not from the spa we're trying to evict from.
	*/
	kstat_named_t arcstat_evict_skip;
	/*
	* Number of times arc_evict_state() was unable to evict enough
	* buffers to reach its target amount.
	*/
	kstat_named_t arcstat_evict_not_enough;
	kstat_named_t arcstat_evict_l2_cached;
	kstat_named_t arcstat_evict_l2_eligible;
	kstat_named_t arcstat_evict_l2_eligible_mfu;
	kstat_named_t arcstat_evict_l2_eligible_mru;
	kstat_named_t arcstat_evict_l2_ineligible;
	kstat_named_t arcstat_evict_l2_skip;
	kstat_named_t arcstat_hash_elements;
	kstat_named_t arcstat_hash_elements_max;
	kstat_named_t arcstat_hash_collisions;
	kstat_named_t arcstat_hash_chains;
	kstat_named_t arcstat_hash_chain_max;
	kstat_named_t arcstat_p;
	kstat_named_t arcstat_c;
	kstat_named_t arcstat_c_min;
	kstat_named_t arcstat_c_max;
	/* Not updated directly; only synced in arc_kstat_update. */
	kstat_named_t arcstat_size;
	/*
	* Number of compressed bytes stored in the arc_buf_hdr_t's b_pabd.
	* Note that the compressed bytes may match the uncompressed bytes
	* if the block is either not compressed or compressed arc is disabled.
	*/
	kstat_named_t arcstat_compressed_size;
	/*
	* Uncompressed size of the data stored in b_pabd. If compressed
	* arc is disabled then this value will be identical to the stat
	* above.
	*/
	kstat_named_t arcstat_uncompressed_size;
	/*
	* Number of bytes stored in all the arc_buf_t's. This is classified
	* as "overhead" since this data is typically short-lived and will
	* be evicted from the arc when it becomes unreferenced unless the
	* zfs_keep_uncompressed_metadata or zfs_keep_uncompressed_level
	* values have been set (see comment in dbuf.c for more information).
	*/
	kstat_named_t arcstat_overhead_size;
	/*
	* Number of bytes consumed by internal ARC structures necessary
	* for tracking purposes; these structures are not actually
	* backed by ARC buffers. This includes arc_buf_hdr_t structures
	* (allocated via arc_buf_hdr_t_full and arc_buf_hdr_t_l2only
	* caches), and arc_buf_t structures (allocated via arc_buf_t
	* cache).
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_hdr_size;
	/*
	* Number of bytes consumed by ARC buffers of type equal to
	* ARC_BUFC_DATA. This is generally consumed by buffers backing
	* on disk user data (e.g. plain file contents).
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_data_size;
	/*
	* Number of bytes consumed by ARC buffers of type equal to
	* ARC_BUFC_METADATA. This is generally consumed by buffers
	* backing on disk data that is used for internal ZFS
	* structures (e.g. ZAP, dnode, indirect blocks, etc).
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_metadata_size;
	/*
	* Number of bytes consumed by dmu_buf_impl_t objects.
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_dbuf_size;
	/*
	* Number of bytes consumed by dnode_t objects.
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_dnode_size;
	/*
	* Number of bytes consumed by bonus buffers.
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_bonus_size;
	#if defined(COMPAT_FREEBSD11)
	/*
	* Sum of the previous three counters, provided for compatibility.
	*/
	kstat_named_t arcstat_other_size;
	#endif

	/*
	* Total number of bytes consumed by ARC buffers residing in the
	* arc_anon state. This includes all buffers in the arc_anon
	* state; e.g. data, metadata, evictable, and unevictable buffers
	* are all included in this value.
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_anon_size;
	/*
	* Number of bytes consumed by ARC buffers that meet the
	* following criteria: backing buffers of type ARC_BUFC_DATA,
	* residing in the arc_anon state, and are eligible for eviction
	* (e.g. have no outstanding holds on the buffer).
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_anon_evictable_data;
	/*
	* Number of bytes consumed by ARC buffers that meet the
	* following criteria: backing buffers of type ARC_BUFC_METADATA,
	* residing in the arc_anon state, and are eligible for eviction
	* (e.g. have no outstanding holds on the buffer).
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_anon_evictable_metadata;
	/*
	* Total number of bytes consumed by ARC buffers residing in the
	* arc_mru state. This includes all buffers in the arc_mru
	* state; e.g. data, metadata, evictable, and unevictable buffers
	* are all included in this value.
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_mru_size;
	/*
	* Number of bytes consumed by ARC buffers that meet the
	* following criteria: backing buffers of type ARC_BUFC_DATA,
	* residing in the arc_mru state, and are eligible for eviction
	* (e.g. have no outstanding holds on the buffer).
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_mru_evictable_data;
	/*
	* Number of bytes consumed by ARC buffers that meet the
	* following criteria: backing buffers of type ARC_BUFC_METADATA,
	* residing in the arc_mru state, and are eligible for eviction
	* (e.g. have no outstanding holds on the buffer).
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_mru_evictable_metadata;
	/*
	* Total number of bytes that would have been consumed by ARC
	* buffers in the arc_mru_ghost state. The key thing to note
	* here, is the fact that this size doesn't actually indicate
	* RAM consumption. The ghost lists only consist of headers and
	* don't actually have ARC buffers linked off of these headers.
	* Thus, if the headers had associated ARC buffers, these
	* buffers would have consumed this number of bytes.
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_mru_ghost_size;
	/*
	* Number of bytes that would have been consumed by ARC
	* buffers that are eligible for eviction, of type
	* ARC_BUFC_DATA, and linked off the arc_mru_ghost state.
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_mru_ghost_evictable_data;
	/*
	* Number of bytes that would have been consumed by ARC
	* buffers that are eligible for eviction, of type
	* ARC_BUFC_METADATA, and linked off the arc_mru_ghost state.
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_mru_ghost_evictable_metadata;
	/*
	* Total number of bytes consumed by ARC buffers residing in the
	* arc_mfu state. This includes all buffers in the arc_mfu
	* state; e.g. data, metadata, evictable, and unevictable buffers
	* are all included in this value.
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_mfu_size;
	/*
	* Number of bytes consumed by ARC buffers that are eligible for
	* eviction, of type ARC_BUFC_DATA, and reside in the arc_mfu
	* state.
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_mfu_evictable_data;
	/*
	* Number of bytes consumed by ARC buffers that are eligible for
	* eviction, of type ARC_BUFC_METADATA, and reside in the
	* arc_mfu state.
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_mfu_evictable_metadata;
	/*
	* Total number of bytes that would have been consumed by ARC
	* buffers in the arc_mfu_ghost state. See the comment above
	* arcstat_mru_ghost_size for more details.
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_mfu_ghost_size;
	/*
	* Number of bytes that would have been consumed by ARC
	* buffers that are eligible for eviction, of type
	* ARC_BUFC_DATA, and linked off the arc_mfu_ghost state.
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_mfu_ghost_evictable_data;
	/*
	* Number of bytes that would have been consumed by ARC
	* buffers that are eligible for eviction, of type
	* ARC_BUFC_METADATA, and linked off the arc_mru_ghost state.
	* Not updated directly; only synced in arc_kstat_update.
	*/
	kstat_named_t arcstat_mfu_ghost_evictable_metadata;
	kstat_named_t arcstat_l2_hits;
	kstat_named_t arcstat_l2_misses;
	/*
	* Allocated size (in bytes) of L2ARC cached buffers by ARC state.
	*/
	kstat_named_t arcstat_l2_prefetch_asize;
	kstat_named_t arcstat_l2_mru_asize;
	kstat_named_t arcstat_l2_mfu_asize;
	/*
	* Allocated size (in bytes) of L2ARC cached buffers by buffer content
	* type.
	*/
	kstat_named_t arcstat_l2_bufc_data_asize;
	kstat_named_t arcstat_l2_bufc_metadata_asize;
	kstat_named_t arcstat_l2_feeds;
	kstat_named_t arcstat_l2_rw_clash;
	kstat_named_t arcstat_l2_read_bytes;
	kstat_named_t arcstat_l2_write_bytes;
	kstat_named_t arcstat_l2_writes_sent;
	kstat_named_t arcstat_l2_writes_done;
	kstat_named_t arcstat_l2_writes_error;
	kstat_named_t arcstat_l2_writes_lock_retry;
	kstat_named_t arcstat_l2_evict_lock_retry;
	kstat_named_t arcstat_l2_evict_reading;
	kstat_named_t arcstat_l2_evict_l1cached;
	kstat_named_t arcstat_l2_free_on_write;
	kstat_named_t arcstat_l2_abort_lowmem;
	kstat_named_t arcstat_l2_cksum_bad;
	kstat_named_t arcstat_l2_io_error;
	kstat_named_t arcstat_l2_lsize;
	kstat_named_t arcstat_l2_psize;
	/* Not updated directly; only synced in arc_kstat_update. */
	kstat_named_t arcstat_l2_hdr_size;
	/*
	* Number of L2ARC log blocks written. These are used for restoring the
	* L2ARC. Updated during writing of L2ARC log blocks.
	*/
	kstat_named_t arcstat_l2_log_blk_writes;
	/*
	* Moving average of the aligned size of the L2ARC log blocks, in
	* bytes. Updated during L2ARC rebuild and during writing of L2ARC
	* log blocks.
	*/
	kstat_named_t arcstat_l2_log_blk_avg_asize;
	/* Aligned size of L2ARC log blocks on L2ARC devices. */
	kstat_named_t arcstat_l2_log_blk_asize;
	/* Number of L2ARC log blocks present on L2ARC devices. */
	kstat_named_t arcstat_l2_log_blk_count;
	/*
	* Moving average of the aligned size of L2ARC restored data, in bytes,
	* to the aligned size of their metadata in L2ARC, in bytes.
	* Updated during L2ARC rebuild and during writing of L2ARC log blocks.
	*/
	kstat_named_t arcstat_l2_data_to_meta_ratio;
	/*
	* Number of times the L2ARC rebuild was successful for an L2ARC device.
	*/
	kstat_named_t arcstat_l2_rebuild_success;
	/*
	* Number of times the L2ARC rebuild failed because the device header
	* was in an unsupported format or corrupted.
	*/
	kstat_named_t arcstat_l2_rebuild_abort_unsupported;
	/*
	* Number of times the L2ARC rebuild failed because of IO errors
	* while reading a log block.
	*/
	kstat_named_t arcstat_l2_rebuild_abort_io_errors;
	/*
	* Number of times the L2ARC rebuild failed because of IO errors when
	* reading the device header.
	*/
	kstat_named_t arcstat_l2_rebuild_abort_dh_errors;
	/*
	* Number of L2ARC log blocks which failed to be restored due to
	* checksum errors.
	*/
	kstat_named_t arcstat_l2_rebuild_abort_cksum_lb_errors;
	/*
	* Number of times the L2ARC rebuild was aborted due to low system
	* memory.
	*/
	kstat_named_t arcstat_l2_rebuild_abort_lowmem;
	/* Logical size of L2ARC restored data, in bytes. */
	kstat_named_t arcstat_l2_rebuild_size;
	/* Aligned size of L2ARC restored data, in bytes. */
	kstat_named_t arcstat_l2_rebuild_asize;
	/*
	* Number of L2ARC log entries (buffers) that were successfully
	* restored in ARC.
	*/
	kstat_named_t arcstat_l2_rebuild_bufs;
	/*
	* Number of L2ARC log entries (buffers) already cached in ARC. These
	* were not restored again.
	*/
	kstat_named_t arcstat_l2_rebuild_bufs_precached;
	/*
	* Number of L2ARC log blocks that were restored successfully. Each
	* log block may hold up to L2ARC_LOG_BLK_MAX_ENTRIES buffers.
	*/
	kstat_named_t arcstat_l2_rebuild_log_blks;
	kstat_named_t arcstat_memory_throttle_count;
	kstat_named_t arcstat_memory_direct_count;
	kstat_named_t arcstat_memory_indirect_count;
	kstat_named_t arcstat_memory_all_bytes;
	kstat_named_t arcstat_memory_free_bytes;
	kstat_named_t arcstat_memory_available_bytes;
	kstat_named_t arcstat_no_grow;
	kstat_named_t arcstat_tempreserve;
	kstat_named_t arcstat_loaned_bytes;
	kstat_named_t arcstat_prune;
	/* Not updated directly; only synced in arc_kstat_update. */
	kstat_named_t arcstat_meta_used;
	kstat_named_t arcstat_meta_limit;
	kstat_named_t arcstat_dnode_limit;
	kstat_named_t arcstat_meta_max;
	kstat_named_t arcstat_meta_min;
	kstat_named_t arcstat_async_upgrade_sync;
	kstat_named_t arcstat_demand_hit_predictive_prefetch;
	kstat_named_t arcstat_demand_hit_prescient_prefetch;
	kstat_named_t arcstat_need_free;
	kstat_named_t arcstat_sys_free;
	kstat_named_t arcstat_raw_size;
	kstat_named_t arcstat_cached_only_in_progress;
	kstat_named_t arcstat_abd_chunk_waste_size;
	} arc_stats_t;

	typedef struct arc_evict_waiter {
	list_node_t aew_node;
	kcondvar_t aew_cv;
	uint64_t aew_count;
	} arc_evict_waiter_t;

	#define ARCSTAT(stat) (arc_stats.stat.value.ui64)

	#define ARCSTAT_INCR(stat, val) \
	atomic_add_64(&arc_stats.stat.value.ui64, (val))

	#define ARCSTAT_BUMP(stat) ARCSTAT_INCR(stat, 1)
	#define ARCSTAT_BUMPDOWN(stat) ARCSTAT_INCR(stat, -1)

	#define arc_no_grow ARCSTAT(arcstat_no_grow) /* do not grow cache size */
	#define arc_p ARCSTAT(arcstat_p) /* target size of MRU */
	#define arc_c ARCSTAT(arcstat_c) /* target size of cache */
	#define arc_c_min ARCSTAT(arcstat_c_min) /* min target cache size */
	#define arc_c_max ARCSTAT(arcstat_c_max) /* max target cache size */
	#define arc_sys_free ARCSTAT(arcstat_sys_free) /* target system free bytes */

	extern taskq_t *arc_prune_taskq;
	extern arc_stats_t arc_stats;
	extern hrtime_t arc_growtime;
	extern boolean_t arc_warm;
	extern int arc_grow_retry;
	extern int arc_no_grow_shift;
	extern int arc_shrink_shift;
	extern kmutex_t arc_prune_mtx;
	extern list_t arc_prune_list;
	extern aggsum_t arc_size;
	extern arc_state_t *arc_mfu;
	extern arc_state_t *arc_mru;
	extern uint_t zfs_arc_pc_percent;
	extern int arc_lotsfree_percent;
	extern unsigned long zfs_arc_min;
	extern unsigned long zfs_arc_max;

	extern void arc_reduce_target_size(int64_t to_free);
	extern boolean_t arc_reclaim_needed(void);
	extern void arc_kmem_reap_soon(void);
	extern boolean_t arc_is_overflowing(void);
	extern void arc_wait_for_eviction(uint64_t);

	extern void arc_lowmem_init(void);
	extern void arc_lowmem_fini(void);
	extern void arc_prune_async(int64_t);
	extern int arc_memory_throttle(spa_t *spa, uint64_t reserve, uint64_t txg);
	extern uint64_t arc_free_memory(void);
	extern int64_t arc_available_memory(void);
	extern void arc_tuning_update(boolean_t);
	extern void arc_register_hotplug(void);
	extern void arc_unregister_hotplug(void);

	extern int param_set_arc_long(ZFS_MODULE_PARAM_ARGS);
	extern int param_set_arc_int(ZFS_MODULE_PARAM_ARGS);

	/* used in zdb.c */
	boolean_t l2arc_log_blkptr_valid(l2arc_dev_t *dev,
	const l2arc_log_blkptr_t *lbp);

	/* used in vdev_trim.c */
	void l2arc_dev_hdr_update(l2arc_dev_t *dev);
	l2arc_dev_t l2arc_vdev_get(vdev_t vd);

	#ifdef __cplusplus
	}
	#endif

	#endif /* _SYS_ARC_IMPL_H */
	diff --git a/sys/contrib/openzfs/include/sys/avl.h b/sys/contrib/openzfs/include/sys/avl.h
	index ed3c6f86a568..20e88f2a6b06 100644
	--- a/sys/contrib/openzfs/include/sys/avl.h
	+++ b/sys/contrib/openzfs/include/sys/avl.h
	@@ -1,325 +1,325 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
	* Use is subject to license terms.
	*/

	/*
	* Copyright (c) 2014 by Delphix. All rights reserved.
	*/

	#ifndef _AVL_H
	-#define _AVL_H
	+#define _AVL_H extern __attribute__((visibility("default")))

	/*
	* This is a private header file. Applications should not directly include
	* this file.
	*/

	#ifdef __cplusplus
	extern "C" {
	#endif

	#include <sys/types.h>
	#include <sys/avl_impl.h>

	/*
	* This is a generic implementation of AVL trees for use in the Solaris kernel.
	* The interfaces provide an efficient way of implementing an ordered set of
	* data structures.
	*
	* AVL trees provide an alternative to using an ordered linked list. Using AVL
	* trees will usually be faster, however they requires more storage. An ordered
	* linked list in general requires 2 pointers in each data structure. The
	* AVL tree implementation uses 3 pointers. The following chart gives the
	* approximate performance of operations with the different approaches:
	*
	* Operation Link List AVL tree
	* --------- -------- --------
	* lookup O(n) O(log(n))
	*
	* insert 1 node constant constant
	*
	* delete 1 node constant between constant and O(log(n))
	*
	* delete all nodes O(n) O(n)
	*
	* visit the next
	* or prev node constant between constant and O(log(n))
	*
	*
	* The data structure nodes are anchored at an "avl_tree_t" (the equivalent
	* of a list header) and the individual nodes will have a field of
	* type "avl_node_t" (corresponding to list pointers).
	*
	* The type "avl_index_t" is used to indicate a position in the list for
	* certain calls.
	*
	* The usage scenario is generally:
	*
	* 1. Create the list/tree with: avl_create()
	*
	* followed by any mixture of:
	*
	* 2a. Insert nodes with: avl_add(), or avl_find() and avl_insert()
	*
	* 2b. Visited elements with:
	* avl_first() - returns the lowest valued node
	* avl_last() - returns the highest valued node
	* AVL_NEXT() - given a node go to next higher one
	* AVL_PREV() - given a node go to previous lower one
	*
	* 2c. Find the node with the closest value either less than or greater
	* than a given value with avl_nearest().
	*
	* 2d. Remove individual nodes from the list/tree with avl_remove().
	*
	* and finally when the list is being destroyed
	*
	* 3. Use avl_destroy_nodes() to quickly process/free up any remaining nodes.
	* Note that once you use avl_destroy_nodes(), you can no longer
	* use any routine except avl_destroy_nodes() and avl_destroy().
	*
	* 4. Use avl_destroy() to destroy the AVL tree itself.
	*
	* Any locking for multiple thread access is up to the user to provide, just
	* as is needed for any linked list implementation.
	*/

	/*
	* AVL comparator helpers
	*/
	#define TREE_ISIGN(a) (((a) > 0) - ((a) < 0))
	#define TREE_CMP(a, b) (((a) > (b)) - ((a) < (b)))
	#define TREE_PCMP(a, b) \
	(((uintptr_t)(a) > (uintptr_t)(b)) - ((uintptr_t)(a) < (uintptr_t)(b)))

	/*
	* Type used for the root of the AVL tree.
	*/
	typedef struct avl_tree avl_tree_t;

	/*
	* The data nodes in the AVL tree must have a field of this type.
	*/
	typedef struct avl_node avl_node_t;

	/*
	* An opaque type used to locate a position in the tree where a node
	* would be inserted.
	*/
	typedef uintptr_t avl_index_t;


	/*
	* Direction constants used for avl_nearest().
	*/
	#define AVL_BEFORE (0)
	#define AVL_AFTER (1)


	/*
	* Prototypes
	*
	* Where not otherwise mentioned, "void *" arguments are a pointer to the
	* user data structure which must contain a field of type avl_node_t.
	*
	* Also assume the user data structures looks like:
	* struct my_type {
	* ...
	* avl_node_t my_link;
	* ...
	* };
	*/

	/*
	* Initialize an AVL tree. Arguments are:
	*
	* tree - the tree to be initialized
	* compar - function to compare two nodes, it must return exactly: -1, 0, or +1
	* -1 for <, 0 for ==, and +1 for >
	* size - the value of sizeof(struct my_type)
	* offset - the value of OFFSETOF(struct my_type, my_link)
	*/
	-extern void avl_create(avl_tree_t *tree,
	+_AVL_H void avl_create(avl_tree_t *tree,
	int (compar) (const void , const void *), size_t size, size_t offset);


	/*
	* Find a node with a matching value in the tree. Returns the matching node
	* found. If not found, it returns NULL and then if "where" is not NULL it sets
	* "where" for use with avl_insert() or avl_nearest().
	*
	* node - node that has the value being looked for
	* where - position for use with avl_nearest() or avl_insert(), may be NULL
	*/
	-extern void avl_find(avl_tree_t tree, const void node, avl_index_t where);
	+_AVL_H void avl_find(avl_tree_t tree, const void node, avl_index_t where);

	/*
	* Insert a node into the tree.
	*
	* node - the node to insert
	* where - position as returned from avl_find()
	*/
	-extern void avl_insert(avl_tree_t tree, void node, avl_index_t where);
	+_AVL_H void avl_insert(avl_tree_t tree, void node, avl_index_t where);

	/*
	* Insert "new_data" in "tree" in the given "direction" either after
	* or before the data "here".
	*
	* This might be useful for avl clients caching recently accessed
	* data to avoid doing avl_find() again for insertion.
	*
	* new_data - new data to insert
	* here - existing node in "tree"
	* direction - either AVL_AFTER or AVL_BEFORE the data "here".
	*/
	-extern void avl_insert_here(avl_tree_t tree, void new_data, void *here,
	+_AVL_H void avl_insert_here(avl_tree_t tree, void new_data, void *here,
	int direction);


	/*
	* Return the first or last valued node in the tree. Will return NULL
	* if the tree is empty.
	*
	*/
	-extern void avl_first(avl_tree_t tree);
	-extern void avl_last(avl_tree_t tree);
	+_AVL_H void avl_first(avl_tree_t tree);
	+_AVL_H void avl_last(avl_tree_t tree);


	/*
	* Return the next or previous valued node in the tree.
	* AVL_NEXT() will return NULL if at the last node.
	* AVL_PREV() will return NULL if at the first node.
	*
	* node - the node from which the next or previous node is found
	*/
	#define AVL_NEXT(tree, node) avl_walk(tree, node, AVL_AFTER)
	#define AVL_PREV(tree, node) avl_walk(tree, node, AVL_BEFORE)


	/*
	* Find the node with the nearest value either greater or less than
	* the value from a previous avl_find(). Returns the node or NULL if
	* there isn't a matching one.
	*
	* where - position as returned from avl_find()
	* direction - either AVL_BEFORE or AVL_AFTER
	*
	* EXAMPLE get the greatest node that is less than a given value:
	*
	* avl_tree_t *tree;
	* struct my_data look_for_value = {....};
	* struct my_data *node;
	* struct my_data *less;
	* avl_index_t where;
	*
	* node = avl_find(tree, &look_for_value, &where);
	* if (node != NULL)
	* less = AVL_PREV(tree, node);
	* else
	* less = avl_nearest(tree, where, AVL_BEFORE);
	*/
	-extern void avl_nearest(avl_tree_t tree, avl_index_t where, int direction);
	+_AVL_H void avl_nearest(avl_tree_t tree, avl_index_t where, int direction);


	/*
	* Add a single node to the tree.
	* The node must not be in the tree, and it must not
	* compare equal to any other node already in the tree.
	*
	* node - the node to add
	*/
	-extern void avl_add(avl_tree_t tree, void node);
	+_AVL_H void avl_add(avl_tree_t tree, void node);


	/*
	* Remove a single node from the tree. The node must be in the tree.
	*
	* node - the node to remove
	*/
	-extern void avl_remove(avl_tree_t tree, void node);
	+_AVL_H void avl_remove(avl_tree_t tree, void node);

	/*
	* Reinsert a node only if its order has changed relative to its nearest
	* neighbors. To optimize performance avl_update_lt() checks only the previous
	* node and avl_update_gt() checks only the next node. Use avl_update_lt() and
	* avl_update_gt() only if you know the direction in which the order of the
	* node may change.
	*/
	-extern boolean_t avl_update(avl_tree_t , void );
	-extern boolean_t avl_update_lt(avl_tree_t , void );
	-extern boolean_t avl_update_gt(avl_tree_t , void );
	+_AVL_H boolean_t avl_update(avl_tree_t , void );
	+_AVL_H boolean_t avl_update_lt(avl_tree_t , void );
	+_AVL_H boolean_t avl_update_gt(avl_tree_t , void );

	/*
	* Swaps the contents of the two trees.
	*/
	-extern void avl_swap(avl_tree_t tree1, avl_tree_t tree2);
	+_AVL_H void avl_swap(avl_tree_t tree1, avl_tree_t tree2);

	/*
	* Return the number of nodes in the tree
	*/
	-extern ulong_t avl_numnodes(avl_tree_t *tree);
	+_AVL_H ulong_t avl_numnodes(avl_tree_t *tree);

	/*
	* Return B_TRUE if there are zero nodes in the tree, B_FALSE otherwise.
	*/
	-extern boolean_t avl_is_empty(avl_tree_t *tree);
	+_AVL_H boolean_t avl_is_empty(avl_tree_t *tree);

	/*
	* Used to destroy any remaining nodes in a tree. The cookie argument should
	* be initialized to NULL before the first call. Returns a node that has been
	* removed from the tree and may be free()'d. Returns NULL when the tree is
	* empty.
	*
	* Once you call avl_destroy_nodes(), you can only continuing calling it and
	* finally avl_destroy(). No other AVL routines will be valid.
	*
	* cookie - a "void *" used to save state between calls to avl_destroy_nodes()
	*
	* EXAMPLE:
	* avl_tree_t *tree;
	* struct my_data *node;
	* void *cookie;
	*
	* cookie = NULL;
	* while ((node = avl_destroy_nodes(tree, &cookie)) != NULL)
	* free(node);
	* avl_destroy(tree);
	*/
	-extern void avl_destroy_nodes(avl_tree_t tree, void **cookie);
	+_AVL_H void avl_destroy_nodes(avl_tree_t tree, void **cookie);


	/*
	* Final destroy of an AVL tree. Arguments are:
	*
	* tree - the empty tree to destroy
	*/
	-extern void avl_destroy(avl_tree_t *tree);
	+_AVL_H void avl_destroy(avl_tree_t *tree);



	#ifdef __cplusplus
	}
	#endif

	#endif /* _AVL_H */
	diff --git a/sys/contrib/openzfs/include/sys/avl_impl.h b/sys/contrib/openzfs/include/sys/avl_impl.h
	index fddf76906dee..f577ecd42f7c 100644
	--- a/sys/contrib/openzfs/include/sys/avl_impl.h
	+++ b/sys/contrib/openzfs/include/sys/avl_impl.h
	@@ -1,164 +1,163 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License, Version 1.0 only
	* (the "License"). You may not use this file except in compliance
	* with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
	* Use is subject to license terms.
	*/

	#ifndef _AVL_IMPL_H
	-#define _AVL_IMPL_H
	-
	+#define _AVL_IMPL_H extern __attribute__((visibility("default")))


	/*
	* This is a private header file. Applications should not directly include
	* this file.
	*/

	#include <sys/types.h>

	#ifdef __cplusplus
	extern "C" {
	#endif


	/*
	* generic AVL tree implementation for kernel use
	*
	* There are 5 pieces of information stored for each node in an AVL tree
	*
	* pointer to less than child
	* pointer to greater than child
	* a pointer to the parent of this node
	* an indication [0/1] of which child I am of my parent
	* a "balance" (-1, 0, +1) indicating which child tree is taller
	*
	* Since they only need 3 bits, the last two fields are packed into the
	* bottom bits of the parent pointer on 64 bit machines to save on space.
	*/

	#ifndef _LP64

	struct avl_node {
	struct avl_node avl_child[2]; / left/right children */
	struct avl_node avl_parent; / this node's parent */
	unsigned short avl_child_index; /* my index in parent's avl_child[] */
	short avl_balance; /* balance value: -1, 0, +1 */
	};

	#define AVL_XPARENT(n) ((n)->avl_parent)
	#define AVL_SETPARENT(n, p) ((n)->avl_parent = (p))

	#define AVL_XCHILD(n) ((n)->avl_child_index)
	#define AVL_SETCHILD(n, c) ((n)->avl_child_index = (unsigned short)(c))

	#define AVL_XBALANCE(n) ((n)->avl_balance)
	#define AVL_SETBALANCE(n, b) ((n)->avl_balance = (short)(b))

	#else /* _LP64 */

	/*
	* for 64 bit machines, avl_pcb contains parent pointer, balance and child_index
	* values packed in the following manner:
	*
	* \|63 3\| 2 \|1 0 \|
	* \|-------------------------------------\|-----------------\|-------------\|
	* \| avl_parent hi order bits \| avl_child_index \| avl_balance \|
	* \| \| \| + 1 \|
	* \|-------------------------------------\|-----------------\|-------------\|
	*
	*/
	struct avl_node {
	struct avl_node avl_child[2]; / left/right children nodes */
	uintptr_t avl_pcb; /* parent, child_index, balance */
	};

	/*
	* macros to extract/set fields in avl_pcb
	*
	* pointer to the parent of the current node is the high order bits
	*/
	#define AVL_XPARENT(n) ((struct avl_node *)((n)->avl_pcb & ~7))
	#define AVL_SETPARENT(n, p) \
	((n)->avl_pcb = (((n)->avl_pcb & 7) \| (uintptr_t)(p)))

	/*
	* index of this node in its parent's avl_child[]: bit #2
	*/
	#define AVL_XCHILD(n) (((n)->avl_pcb >> 2) & 1)
	#define AVL_SETCHILD(n, c) \
	((n)->avl_pcb = (uintptr_t)(((n)->avl_pcb & ~4) \| ((c) << 2)))

	/*
	* balance indication for a node, lowest 2 bits. A valid balance is
	* -1, 0, or +1, and is encoded by adding 1 to the value to get the
	* unsigned values of 0, 1, 2.
	*/
	#define AVL_XBALANCE(n) ((int)(((n)->avl_pcb & 3) - 1))
	#define AVL_SETBALANCE(n, b) \
	((n)->avl_pcb = (uintptr_t)((((n)->avl_pcb & ~3) \| ((b) + 1))))

	#endif /* _LP64 */



	/*
	* switch between a node and data pointer for a given tree
	* the value of "o" is tree->avl_offset
	*/
	#define AVL_NODE2DATA(n, o) ((void *)((uintptr_t)(n) - (o)))
	#define AVL_DATA2NODE(d, o) ((struct avl_node *)((uintptr_t)(d) + (o)))



	/*
	* macros used to create/access an avl_index_t
	*/
	#define AVL_INDEX2NODE(x) ((avl_node_t *)((x) & ~1))
	#define AVL_INDEX2CHILD(x) ((x) & 1)
	#define AVL_MKINDEX(n, c) ((avl_index_t)(n) \| (c))


	/*
	* The tree structure. The fields avl_root, avl_compar, and avl_offset come
	* first since they are needed for avl_find(). We want them to fit into
	* a single 64 byte cache line to make avl_find() as fast as possible.
	*/
	struct avl_tree {
	struct avl_node avl_root; / root node in tree */
	int (avl_compar)(const void , const void *);
	size_t avl_offset; /* offsetof(type, avl_link_t field) */
	ulong_t avl_numnodes; /* number of nodes in the tree */
	size_t avl_size; /* sizeof user type struct */
	};


	/*
	* This will only by used via AVL_NEXT() or AVL_PREV()
	*/
	-extern void avl_walk(struct avl_tree , void *, int);
	+_AVL_IMPL_H void avl_walk(struct avl_tree , void *, int);

	#ifdef __cplusplus
	}
	#endif

	#endif /* _AVL_IMPL_H */
	diff --git a/sys/contrib/openzfs/include/sys/dmu_objset.h b/sys/contrib/openzfs/include/sys/dmu_objset.h
	index a8cb812714ec..e89ee64ea686 100644
	--- a/sys/contrib/openzfs/include/sys/dmu_objset.h
	+++ b/sys/contrib/openzfs/include/sys/dmu_objset.h
	@@ -1,273 +1,273 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	* Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	* Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
	*/

	/* Portions Copyright 2010 Robert Milkowski */

	#ifndef _SYS_DMU_OBJSET_H
	#define _SYS_DMU_OBJSET_H

	#include <sys/spa.h>
	#include <sys/arc.h>
	#include <sys/txg.h>
	#include <sys/zfs_context.h>
	#include <sys/dnode.h>
	#include <sys/zio.h>
	#include <sys/zil.h>
	#include <sys/sa.h>
	#include <sys/zfs_ioctl.h>

	#ifdef __cplusplus
	extern "C" {
	#endif

	extern krwlock_t os_lock;

	struct dsl_pool;
	struct dsl_dataset;
	struct dmu_tx;

	#define OBJSET_PHYS_SIZE_V1 1024
	#define OBJSET_PHYS_SIZE_V2 2048
	#define OBJSET_PHYS_SIZE_V3 4096

	#define OBJSET_BUF_HAS_USERUSED(buf) \
	(arc_buf_size(buf) >= OBJSET_PHYS_SIZE_V2)
	#define OBJSET_BUF_HAS_PROJECTUSED(buf) \
	(arc_buf_size(buf) >= OBJSET_PHYS_SIZE_V3)

	#define OBJSET_FLAG_USERACCOUNTING_COMPLETE (1ULL << 0)
	#define OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE (1ULL << 1)
	#define OBJSET_FLAG_PROJECTQUOTA_COMPLETE (1ULL << 2)

	/*
	* This mask defines the set of flags which are "portable", meaning
	* that they can be preserved when doing a raw encrypted zfs send.
	* Flags included in this mask will be protected by os_portable_mac
	* when the block of dnodes is encrypted. No portable flags currently
	* exist.
	*/
	#define OBJSET_CRYPT_PORTABLE_FLAGS_MASK (0)

	typedef struct objset_phys {
	dnode_phys_t os_meta_dnode;
	zil_header_t os_zil_header;
	uint64_t os_type;
	uint64_t os_flags;
	uint8_t os_portable_mac[ZIO_OBJSET_MAC_LEN];
	uint8_t os_local_mac[ZIO_OBJSET_MAC_LEN];
	char os_pad0[OBJSET_PHYS_SIZE_V2 - sizeof (dnode_phys_t)*3 -
	sizeof (zil_header_t) - sizeof (uint64_t)*2 -
	2*ZIO_OBJSET_MAC_LEN];
	dnode_phys_t os_userused_dnode;
	dnode_phys_t os_groupused_dnode;
	dnode_phys_t os_projectused_dnode;
	char os_pad1[OBJSET_PHYS_SIZE_V3 - OBJSET_PHYS_SIZE_V2 -
	sizeof (dnode_phys_t)];
	} objset_phys_t;

	typedef int (dmu_objset_upgrade_cb_t)(objset_t );

	#define OBJSET_PROP_UNINITIALIZED ((uint64_t)-1)
	struct objset {
	/* Immutable: */
	struct dsl_dataset *os_dsl_dataset;
	spa_t *os_spa;
	arc_buf_t *os_phys_buf;
	objset_phys_t *os_phys;
	boolean_t os_encrypted;

	/*
	* The following "special" dnodes have no parent, are exempt
	* from dnode_move(), and are not recorded in os_dnodes, but they
	* root their descendents in this objset using handles anyway, so
	* that all access to dnodes from dbufs consistently uses handles.
	*/
	dnode_handle_t os_meta_dnode;
	dnode_handle_t os_userused_dnode;
	dnode_handle_t os_groupused_dnode;
	dnode_handle_t os_projectused_dnode;
	zilog_t *os_zil;

	list_node_t os_evicting_node;

	/* can change, under dsl_dir's locks: */
	uint64_t os_dnodesize; /* default dnode size for new objects */
	enum zio_checksum os_checksum;
	enum zio_compress os_compress;
	uint8_t os_complevel;
	uint8_t os_copies;
	enum zio_checksum os_dedup_checksum;
	boolean_t os_dedup_verify;
	zfs_logbias_op_t os_logbias;
	zfs_cache_type_t os_primary_cache;
	zfs_cache_type_t os_secondary_cache;
	zfs_sync_type_t os_sync;
	zfs_redundant_metadata_type_t os_redundant_metadata;
	uint64_t os_recordsize;
	/*
	* The next four values are used as a cache of whatever's on disk, and
	* are initialized the first time these properties are queried. Before
	* being initialized with their real values, their values are
	* OBJSET_PROP_UNINITIALIZED.
	*/
	uint64_t os_version;
	uint64_t os_normalization;
	uint64_t os_utf8only;
	uint64_t os_casesensitivity;
	/*
	* The largest zpl file block allowed in special class.
	* cached here instead of zfsvfs for easier access.
	*/
	int os_zpl_special_smallblock;

	/*
	* Pointer is constant; the blkptr it points to is protected by
	* os_dsl_dataset->ds_bp_rwlock
	*/
	blkptr_t *os_rootbp;

	/* no lock needed: */
	struct dmu_tx os_synctx; / XXX sketchy */
	zil_header_t os_zil_header;
	- multilist_t *os_synced_dnodes;
	+ multilist_t os_synced_dnodes;
	uint64_t os_flags;
	uint64_t os_freed_dnodes;
	boolean_t os_rescan_dnodes;
	boolean_t os_raw_receive;

	/* os_phys_buf should be written raw next txg */
	boolean_t os_next_write_raw[TXG_SIZE];

	/* Protected by os_obj_lock */
	kmutex_t os_obj_lock;
	uint64_t os_obj_next_chunk;

	/* Per-CPU next object to allocate, protected by atomic ops. */
	uint64_t *os_obj_next_percpu;
	int os_obj_next_percpu_len;

	/* Protected by os_lock */
	kmutex_t os_lock;
	- multilist_t *os_dirty_dnodes[TXG_SIZE];
	+ multilist_t os_dirty_dnodes[TXG_SIZE];
	list_t os_dnodes;
	list_t os_downgraded_dbufs;

	/* Protects changes to DMU_{USER,GROUP,PROJECT}USED_OBJECT */
	kmutex_t os_userused_lock;

	/* stuff we store for the user */
	kmutex_t os_user_ptr_lock;
	void *os_user_ptr;
	sa_os_t *os_sa;

	/* kernel thread to upgrade this dataset */
	kmutex_t os_upgrade_lock;
	taskqid_t os_upgrade_id;
	dmu_objset_upgrade_cb_t os_upgrade_cb;
	boolean_t os_upgrade_exit;
	int os_upgrade_status;
	};

	#define DMU_META_OBJSET 0
	#define DMU_META_DNODE_OBJECT 0
	#define DMU_OBJECT_IS_SPECIAL(obj) ((int64_t)(obj) <= 0)
	#define DMU_META_DNODE(os) ((os)->os_meta_dnode.dnh_dnode)
	#define DMU_USERUSED_DNODE(os) ((os)->os_userused_dnode.dnh_dnode)
	#define DMU_GROUPUSED_DNODE(os) ((os)->os_groupused_dnode.dnh_dnode)
	#define DMU_PROJECTUSED_DNODE(os) ((os)->os_projectused_dnode.dnh_dnode)

	#define DMU_OS_IS_L2CACHEABLE(os) \
	((os)->os_secondary_cache == ZFS_CACHE_ALL \|\| \
	(os)->os_secondary_cache == ZFS_CACHE_METADATA)

	/* called from zpl */
	int dmu_objset_hold(const char name, void tag, objset_t **osp);
	int dmu_objset_hold_flags(const char name, boolean_t decrypt, void tag,
	objset_t **osp);
	int dmu_objset_own(const char *name, dmu_objset_type_t type,
	boolean_t readonly, boolean_t decrypt, void tag, objset_t *osp);
	int dmu_objset_own_obj(struct dsl_pool *dp, uint64_t obj,
	dmu_objset_type_t type, boolean_t readonly, boolean_t decrypt,
	void tag, objset_t *osp);
	void dmu_objset_refresh_ownership(struct dsl_dataset *ds,
	struct dsl_dataset *newds, boolean_t decrypt, void tag);
	void dmu_objset_rele(objset_t os, void tag);
	void dmu_objset_rele_flags(objset_t os, boolean_t decrypt, void tag);
	void dmu_objset_disown(objset_t os, boolean_t decrypt, void tag);
	int dmu_objset_from_ds(struct dsl_dataset ds, objset_t *osp);

	void dmu_objset_stats(objset_t os, nvlist_t nv);
	void dmu_objset_fast_stat(objset_t os, dmu_objset_stats_t stat);
	void dmu_objset_space(objset_t os, uint64_t refdbytesp, uint64_t *availbytesp,
	uint64_t usedobjsp, uint64_t availobjsp);
	uint64_t dmu_objset_fsid_guid(objset_t *os);
	int dmu_objset_find_dp(struct dsl_pool *dp, uint64_t ddobj,
	int func(struct dsl_pool , struct dsl_dataset , void *),
	void *arg, int flags);
	void dmu_objset_evict_dbufs(objset_t *os);
	inode_timespec_t dmu_objset_snap_cmtime(objset_t *os);

	/* called from dsl */
	void dmu_objset_sync(objset_t os, zio_t zio, dmu_tx_t *tx);
	boolean_t dmu_objset_is_dirty(objset_t *os, uint64_t txg);
	objset_t dmu_objset_create_impl_dnstats(spa_t spa, struct dsl_dataset *ds,
	blkptr_t *bp, dmu_objset_type_t type, int levels, int blksz, int ibs,
	dmu_tx_t *tx);
	objset_t dmu_objset_create_impl(spa_t spa, struct dsl_dataset *ds,
	blkptr_t bp, dmu_objset_type_t type, dmu_tx_t tx);
	int dmu_objset_open_impl(spa_t spa, struct dsl_dataset ds, blkptr_t *bp,
	objset_t **osp);
	void dmu_objset_evict(objset_t *os);
	void dmu_objset_sync_done(objset_t os, dmu_tx_t tx);
	void dmu_objset_userquota_get_ids(dnode_t dn, boolean_t before, dmu_tx_t tx);
	boolean_t dmu_objset_userused_enabled(objset_t *os);
	void dmu_objset_userspace_upgrade(objset_t *os);
	boolean_t dmu_objset_userspace_present(objset_t *os);
	boolean_t dmu_objset_userobjused_enabled(objset_t *os);
	boolean_t dmu_objset_userobjspace_upgradable(objset_t *os);
	boolean_t dmu_objset_userobjspace_present(objset_t *os);
	boolean_t dmu_objset_incompatible_encryption_version(objset_t *os);
	boolean_t dmu_objset_projectquota_enabled(objset_t *os);
	boolean_t dmu_objset_projectquota_present(objset_t *os);
	boolean_t dmu_objset_projectquota_upgradable(objset_t *os);
	void dmu_objset_id_quota_upgrade(objset_t *os);
	int dmu_get_file_info(objset_t *os, dmu_object_type_t bonustype,
	const void data, zfs_file_info_t zfi);

	int dmu_fsname(const char snapname, char buf);

	void dmu_objset_evict_done(objset_t *os);
	void dmu_objset_willuse_space(objset_t os, int64_t space, dmu_tx_t tx);

	void dmu_objset_init(void);
	void dmu_objset_fini(void);

	#ifdef __cplusplus
	}
	#endif

	#endif /* _SYS_DMU_OBJSET_H */
	diff --git a/sys/contrib/openzfs/include/sys/efi_partition.h b/sys/contrib/openzfs/include/sys/efi_partition.h
	index 88bdfd2b1ca3..cda2c98e5d53 100644
	--- a/sys/contrib/openzfs/include/sys/efi_partition.h
	+++ b/sys/contrib/openzfs/include/sys/efi_partition.h
	@@ -1,381 +1,381 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright 2012 Nexenta Systems, Inc. All rights reserved.
	*/

	#ifndef _SYS_EFI_PARTITION_H
	-#define _SYS_EFI_PARTITION_H
	+#define _SYS_EFI_PARTITION_H extern __attribute__((visibility("default")))

	#include <sys/uuid.h>

	#ifdef __cplusplus
	extern "C" {
	#endif

	/*
	* GUID Partition Table Header
	*/

	#define EFI_MIN_LABEL_SIZE 92
	#define EFI_LABEL_SIZE 512
	#define LEN_EFI_PAD (EFI_LABEL_SIZE - \
	((5 * sizeof (diskaddr_t)) + \
	(7 * sizeof (uint_t)) + \
	(8 * sizeof (char)) + \
	(1 * (sizeof (struct uuid)))))

	#define EFI_SIGNATURE 0x5452415020494645ULL

	/* EFI Guid Partition Table Header -- little endian on-disk format */
	typedef struct efi_gpt {
	uint64_t efi_gpt_Signature;
	uint_t efi_gpt_Revision;
	uint_t efi_gpt_HeaderSize;
	uint_t efi_gpt_HeaderCRC32;
	uint_t efi_gpt_Reserved1;
	diskaddr_t efi_gpt_MyLBA;
	diskaddr_t efi_gpt_AlternateLBA;
	diskaddr_t efi_gpt_FirstUsableLBA;
	diskaddr_t efi_gpt_LastUsableLBA;
	struct uuid efi_gpt_DiskGUID;
	diskaddr_t efi_gpt_PartitionEntryLBA;
	uint_t efi_gpt_NumberOfPartitionEntries;
	uint_t efi_gpt_SizeOfPartitionEntry;
	uint_t efi_gpt_PartitionEntryArrayCRC32;
	char efi_gpt_Reserved2[LEN_EFI_PAD];
	} efi_gpt_t;

	/* EFI Guid Partition Entry Attributes -- little endian format */
	typedef struct efi_gpe_Attrs {
	uint32_t PartitionAttrs :16,
	Reserved2 :16;
	uint32_t Reserved1 :31,
	RequiredPartition :1;
	} efi_gpe_Attrs_t;

	/*
	* 6a96237f-1dd2-11b2-99a6-080020736631 V_UNASSIGNED (not used as such)
	* 6a82cb45-1dd2-11b2-99a6-080020736631 V_BOOT
	* 6a85cf4d-1dd2-11b2-99a6-080020736631 V_ROOT
	* 6a87c46f-1dd2-11b2-99a6-080020736631 V_SWAP
	* 6a898cc3-1dd2-11b2-99a6-080020736631 V_USR
	* 6a8b642b-1dd2-11b2-99a6-080020736631 V_BACKUP
	* 6a8d2ac7-1dd2-11b2-99a6-080020736631 V_STAND (not used)
	* 6a8ef2e9-1dd2-11b2-99a6-080020736631 V_VAR
	* 6a90ba39-1dd2-11b2-99a6-080020736631 V_HOME
	* 6a9283a5-1dd2-11b2-99a6-080020736631 V_ALTSCTR
	* 6a945a3b-1dd2-11b2-99a6-080020736631 V_CACHE
	*/

	#define EFI_UNUSED { 0x00000000, 0x0000, 0x0000, 0x00, 0x00, \
	{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } }
	#define EFI_RESV1 { 0x6a96237f, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	#define EFI_BOOT { 0x6a82cb45, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	#define EFI_ROOT { 0x6a85cf4d, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	#define EFI_SWAP { 0x6a87c46f, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	#define EFI_USR { 0x6a898cc3, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	#define EFI_BACKUP { 0x6a8b642b, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	#define EFI_RESV2 { 0x6a8d2ac7, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	#define EFI_VAR { 0x6a8ef2e9, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	#define EFI_HOME { 0x6a90ba39, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	#define EFI_ALTSCTR { 0x6a9283a5, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	#define EFI_RESERVED { 0x6a945a3b, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	#define EFI_SYSTEM { 0xC12A7328, 0xF81F, 0x11d2, 0xBA, 0x4B, \
	{ 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B } }
	#define EFI_LEGACY_MBR { 0x024DEE41, 0x33E7, 0x11d3, 0x9D, 0x69, \
	{ 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F } }
	#define EFI_SYMC_PUB { 0x6a9630d1, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	#define EFI_SYMC_CDS { 0x6a980767, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	#define EFI_MSFT_RESV { 0xE3C9E316, 0x0B5C, 0x4DB8, 0x81, 0x7D, \
	{ 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE } }
	#define EFI_DELL_BASIC { 0xebd0a0a2, 0xb9e5, 0x4433, 0x87, 0xc0, \
	{ 0x68, 0xb6, 0xb7, 0x26, 0x99, 0xc7 } }
	#define EFI_DELL_RAID { 0xa19d880f, 0x05fc, 0x4d3b, 0xa0, 0x06, \
	{ 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e } }
	#define EFI_DELL_SWAP { 0x0657fd6d, 0xa4ab, 0x43c4, 0x84, 0xe5, \
	{ 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f } }
	#define EFI_DELL_LVM { 0xe6d6d379, 0xf507, 0x44c2, 0xa2, 0x3c, \
	{ 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28 } }
	#define EFI_DELL_RESV { 0x8da63339, 0x0007, 0x60c0, 0xc4, 0x36, \
	{ 0x08, 0x3a, 0xc8, 0x23, 0x09, 0x08 } }
	#define EFI_AAPL_HFS { 0x48465300, 0x0000, 0x11aa, 0xaa, 0x11, \
	{ 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } }
	#define EFI_AAPL_UFS { 0x55465300, 0x0000, 0x11aa, 0xaa, 0x11, \
	{ 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } }
	#define EFI_FREEBSD_BOOT { 0x83bd6b9d, 0x7f41, 0x11dc, 0xbe, 0x0b, \
	{ 0x00, 0x15, 0x60, 0xb8, 0x4f, 0x0f } }
	#define EFI_FREEBSD_SWAP { 0x516e7cb5, 0x6ecf, 0x11d6, 0x8f, 0xf8, \
	{ 0x00, 0x02, 0x2d, 0x09, 0x71, 0x2b } }
	#define EFI_FREEBSD_UFS { 0x516e7cb6, 0x6ecf, 0x11d6, 0x8f, 0xf8, \
	{ 0x00, 0x02, 0x2d, 0x09, 0x71, 0x2b } }
	#define EFI_FREEBSD_VINUM { 0x516e7cb8, 0x6ecf, 0x11d6, 0x8f, 0xf8, \
	{ 0x00, 0x02, 0x2d, 0x09, 0x71, 0x2b } }
	#define EFI_FREEBSD_ZFS { 0x516e7cba, 0x6ecf, 0x11d6, 0x8f, 0xf8, \
	{ 0x00, 0x02, 0x2d, 0x09, 0x71, 0x2b } }

	/* From Wikipedia */

	#define EFI_BIOS_BOOT { 0x21686148, 0x6449, 0x6e6f, 0x74, 0x4e, \
	{ 0x65, 0x65, 0x64, 0x45, 0x46, 0x49 } }
	#define EFI_INTC_RS { 0xd3bfe2de, 0x3daf, 0x11df, 0xba, 0x40, \
	{ 0xe3, 0xa5, 0x56, 0xd8, 0x95, 0x93 } }
	#define EFI_SNE_BOOT { 0xf4019732, 0x066e, 0x4e12, 0x82, 0x73, \
	{ 0x34, 0x6c, 0x56, 0x41, 0x49, 0x4f } }
	#define EFI_LENOVO_BOOT { 0xbfbfafe7, 0xa34f, 0x448a, 0x9a, 0x5b, \
	{ 0x62, 0x13, 0xeb, 0x73, 0x6c, 0x22 } }
	#define EFI_MSFT_LDMM { 0x5808c8aa, 0x7e8f, 0x42e0, 0x85, 0xd2, \
	{ 0xe1, 0xe9, 0x04, 0x34, 0xcf, 0xb3 } }
	#define EFI_MSFT_LDMD { 0xaf9b60a0, 0x1431, 0x4f62, 0xbc, 0x68, \
	{ 0x33, 0x11, 0x71, 0x4a, 0x69, 0xad } }
	#define EFI_MSFT_RE { 0xde94bba4, 0x06d1, 0x4d40, 0xa1, 0x6a, \
	{ 0xbf, 0xd5, 0x01, 0x79, 0xd6, 0xac } }
	#define EFI_IBM_GPFS { 0x37affc90, 0xef7d, 0x4e96, 0x91, 0xc3, \
	{ 0x2d, 0x7a, 0xe0, 0x55, 0xb1, 0x74 } }
	#define EFI_MSFT_STORAGESPACES { 0xe75caf8f, 0xf680, 0x4cee, 0xaf, 0xa3, \
	{ 0xb0, 0x01, 0xe5, 0x6e, 0xfc, 0x2d } }
	#define EFI_HPQ_DATA { 0x75894c1e, 0x3aeb, 0x11d3, 0xb7, 0xc1, \
	{ 0x7b, 0x03, 0xa0, 0x00, 0x00, 0x00 } }
	#define EFI_HPQ_SVC { 0xe2a1e728, 0x32e3, 0x11d6, 0xa6, 0x82, \
	{ 0x7b, 0x03, 0xa0, 0x00, 0x00, 0x00 } }
	#define EFI_RHT_DATA { 0x0fc63daf, 0x8483, 0x4772, 0x8e, 0x79, \
	{ 0x3d, 0x69, 0xd8, 0x47, 0x7d, 0xe4 } }
	#define EFI_RHT_HOME { 0x933ac7e1, 0x2eb4, 0x4f13, 0xb8, 0x44, \
	{ 0x0e, 0x14, 0xe2, 0xae, 0xf9, 0x15 } }
	#define EFI_RHT_SRV { 0x3b8f8425, 0x20e0, 0x4f3b, 0x90, 0x7f, \
	{ 0x1a, 0x25, 0xa7, 0x6f, 0x98, 0xe8 } }
	#define EFI_RHT_DMCRYPT { 0x7ffec5c9, 0x2d00, 0x49b7, 0x89, 0x41, \
	{ 0x3e, 0xa1, 0x0a, 0x55, 0x86, 0xb7 } }
	#define EFI_RHT_LUKS { 0xca7d7ccb, 0x63ed, 0x4c53, 0x86, 0x1c, \
	{ 0x17, 0x42, 0x53, 0x60, 0x59, 0xcc } }
	#define EFI_FREEBSD_DISKLABEL { 0x516e7cb4, 0x6ecf, 0x11d6, 0x8f, 0xf8, \
	{ 0x00, 0x02, 0x2d, 0x09, 0x71, 0x2b } }
	#define EFI_AAPL_RAID { 0x52414944, 0x0000, 0x11aa, 0xaa, 0x11, \
	{ 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } }
	#define EFI_AAPL_RAIDOFFLINE { 0x52414944, 0x5f4f, 0x11aa, 0xaa, 0x11, \
	{ 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } }
	#define EFI_AAPL_BOOT { 0x426f6f74, 0x0000, 0x11aa, 0xaa, 0x11, \
	{ 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } }
	#define EFI_AAPL_LABEL { 0x4c616265, 0x6c00, 0x11aa, 0xaa, 0x11, \
	{ 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } }
	#define EFI_AAPL_TVRECOVERY { 0x5265636f, 0x7665, 0x11aa, 0xaa, 0x11, \
	{ 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } }
	#define EFI_AAPL_CORESTORAGE { 0x53746f72, 0x6167, 0x11aa, 0xaa, 0x11, \
	{ 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } }
	#define EFI_NETBSD_SWAP { 0x49f48d32, 0xb10e, 0x11dc, 0xb9, 0x9b, \
	{ 0x00, 0x19, 0xd1, 0x87, 0x96, 0x48 } }
	#define EFI_NETBSD_FFS { 0x49f48d5a, 0xb10e, 0x11dc, 0xb9, 0x9b, \
	{ 0x00, 0x19, 0xd1, 0x87, 0x96, 0x48 } }
	#define EFI_NETBSD_LFS { 0x49f48d82, 0xb10e, 0x11dc, 0xb9, 0x9b, \
	{ 0x00, 0x19, 0xd1, 0x87, 0x96, 0x48 } }
	#define EFI_NETBSD_RAID { 0x49f48daa, 0xb10e, 0x11dc, 0xb9, 0x9b, \
	{ 0x00, 0x19, 0xd1, 0x87, 0x96, 0x48 } }
	#define EFI_NETBSD_CAT { 0x2db519c4, 0xb10f, 0x11dc, 0xb9, 0x9b, \
	{ 0x00, 0x19, 0xd1, 0x87, 0x96, 0x48 } }
	#define EFI_NETBSD_CRYPT { 0x2db519ec, 0xb10f, 0x11dc, 0xb9, 0x9b, \
	{ 0x00, 0x19, 0xd1, 0x87, 0x96, 0x48 } }
	#define EFI_GOOG_KERN { 0xfe3a2a5d, 0x4f32, 0x41a7, 0xb7, 0x25, \
	{ 0xac, 0xcc, 0x32, 0x85, 0xa3, 0x09 } }
	#define EFI_GOOG_ROOT { 0x3cb8e202, 0x3b7e, 0x47dd, 0x8a, 0x3c, \
	{ 0x7f, 0xf2, 0xa1, 0x3c, 0xfc, 0xec } }
	#define EFI_GOOG_RESV { 0x2e0a753d, 0x9e48, 0x43b0, 0x83, 0x37, \
	{ 0xb1, 0x51, 0x92, 0xcb, 0x1b, 0x5e } }
	#define EFI_HAIKU_BFS { 0x42465331, 0x3ba3, 0x10f1, 0x80, 0x2a, \
	{ 0x48, 0x61, 0x69, 0x6b, 0x75, 0x21 } }
	#define EFI_MIDNIGHTBSD_BOOT { 0x85d5e45e, 0x237c, 0x11e1, 0xb4, 0xb3, \
	{ 0xe8, 0x9a, 0x8f, 0x7f, 0xc3, 0xa7 } }
	#define EFI_MIDNIGHTBSD_DATA { 0x85d5e45a, 0x237c, 0x11e1, 0xb4, 0xb3, \
	{ 0xe8, 0x9a, 0x8f, 0x7f, 0xc3, 0xa7 } }
	#define EFI_MIDNIGHTBSD_SWAP { 0x85d5e45b, 0x237c, 0x11e1, 0xb4, 0xb3, \
	{ 0xe8, 0x9a, 0x8f, 0x7f, 0xc3, 0xa7 } }
	#define EFI_MIDNIGHTBSD_UFS { 0x0394ef8b, 0x237e, 0x11e1, 0xb4, 0xb3, \
	{ 0xe8, 0x9a, 0x8f, 0x7f, 0xc3, 0xa7 } }
	#define EFI_MIDNIGHTBSD_VINUM { 0x85d5e45c, 0x237c, 0x11e1, 0xb4, 0xb3, \
	{ 0xe8, 0x9a, 0x8f, 0x7f, 0xc3, 0xa7 } }
	#define EFI_MIDNIGHTBSD_ZFS { 0x85d5e45d, 0x237c, 0x11e1, 0xb4, 0xb3, \
	{ 0xe8, 0x9a, 0x8f, 0x7f, 0xc3, 0xa7 } }
	#define EFI_CEPH_JOURNAL { 0x45b0969e, 0x9b03, 0x4f30, 0xb4, 0xc6, \
	{ 0xb4, 0xb8, 0x0c, 0xef, 0xf1, 0x06 } }
	#define EFI_CEPH_DMCRYPTJOURNAL { 0x45b0969e, 0x9b03, 0x4f30, 0xb4, 0xc6, \
	{ 0x5e, 0xc0, 0x0c, 0xef, 0xf1, 0x06 } }
	#define EFI_CEPH_OSD { 0x4fbd7e29, 0x9d25, 0x41b8, 0xaf, 0xd0, \
	{ 0x06, 0x2c, 0x0c, 0xef, 0xf0, 0x5d } }
	#define EFI_CEPH_DMCRYPTOSD { 0x4fbd7e29, 0x9d25, 0x41b8, 0xaf, 0xd0, \
	{ 0x5e, 0xc0, 0x0c, 0xef, 0xf0, 0x5d } }
	#define EFI_CEPH_CREATE { 0x89c57f98, 0x2fe5, 0x4dc0, 0x89, 0xc1, \
	{ 0xf3, 0xad, 0x0c, 0xef, 0xf2, 0xbe } }
	#define EFI_CEPH_DMCRYPTCREATE { 0x89c57f98, 0x2fe5, 0x4dc0, 0x89, 0xc1, \
	{ 0x5e, 0xc0, 0x0c, 0xef, 0xf2, 0xbe } }
	#define EFI_OPENBSD_DISKLABEL { 0x824cc7a0, 0x36a8, 0x11e3, 0x89, 0x0a, \
	{ 0x95, 0x25, 0x19, 0xad, 0x3f, 0x61 } }
	#define EFI_BBRY_QNX { 0xcef5a9ad, 0x73bc, 0x4601, 0x89, 0xf3, \
	{ 0xcd, 0xee, 0xee, 0xe3, 0x21, 0xa1 } }
	#define EFI_BELL_PLAN9 { 0xc91818f9, 0x8025, 0x47af, 0x89, 0xd2, \
	{ 0xf0, 0x30, 0xd7, 0x00, 0x0c, 0x2c } }
	#define EFI_VMW_KCORE { 0x9d275380, 0x40ad, 0x11db, 0xbf, 0x97, \
	{ 0x00, 0x0c, 0x29, 0x11, 0xd1, 0xb8 } }
	#define EFI_VMW_VMFS { 0xaa31e02a, 0x400f, 0x11db, 0x95, 0x90, \
	{ 0x00, 0x0c, 0x29, 0x11, 0xd1, 0xb8 } }
	#define EFI_VMW_RESV { 0x9198effc, 0x31c0, 0x11db, 0x8f, 0x78, \
	{ 0x00, 0x0c, 0x29, 0x11, 0xd1, 0xb8 } }

	/* From GPT fdisk */

	#define EFI_RHT_ROOTX86 { 0x44479540, 0xf297, 0x41b2, 0x9a, 0xf7, \
	{ 0xd1, 0x31, 0xd5, 0xf0, 0x45, 0x8a } }
	#define EFI_RHT_ROOTAMD64 { 0x4f68bce3, 0xe8cd, 0x4db1, 0x96, 0xe7, \
	{ 0xfb, 0xca, 0xf9, 0x84, 0xb7, 0x09 } }
	#define EFI_RHT_ROOTARM { 0x69dad710, 0x2ce4, 0x4e3c, 0xb1, 0x6c, \
	{ 0x21, 0xa1, 0xd4, 0x9a, 0xbe, 0xd3 } }
	#define EFI_RHT_ROOTARM64 { 0xb921b045, 0x1df0, 0x41c3, 0xaf, 0x44, \
	{ 0x4c, 0x6f, 0x28, 0x0d, 0x3f, 0xae } }
	#define EFI_ACRONIS_SECUREZONE { 0x0311fc50, 0x01ca, 0x4725, 0xad, 0x77, \
	{ 0x9a, 0xdb, 0xb2, 0x0a, 0xce, 0x98 } }
	#define EFI_ONIE_BOOT { 0x7412f7d5, 0xa156, 0x4b13, 0x81, 0xdc, \
	{ 0x86, 0x71, 0x74, 0x92, 0x93, 0x25 } }
	#define EFI_ONIE_CONFIG { 0xd4e6e2cd, 0x4469, 0x46f3, 0xb5, 0xcb, \
	{ 0x1b, 0xff, 0x57, 0xaf, 0xc1, 0x49 } }
	#define EFI_IBM_PPRPBOOT { 0x9e1a2d38, 0xc612, 0x4316, 0xaa, 0x26, \
	{ 0x8b, 0x49, 0x52, 0x1e, 0x5a, 0x8b } }
	#define EFI_FREEDESKTOP_BOOT { 0xbc13c2ff, 0x59e6, 0x4262, 0xa3, 0x52, \
	{ 0xb2, 0x75, 0xfd, 0x6f, 0x71, 0x72 } }

	/* minimum # of bytes for partition table entries, per EFI spec */
	#define EFI_MIN_ARRAY_SIZE (16 * 1024)

	#define EFI_PART_NAME_LEN 36

	/* size of the "reserved" partition, in blocks */
	#define EFI_MIN_RESV_SIZE (16 * 1024)

	/* EFI Guid Partition Entry */
	typedef struct efi_gpe {
	struct uuid efi_gpe_PartitionTypeGUID;
	struct uuid efi_gpe_UniquePartitionGUID;
	diskaddr_t efi_gpe_StartingLBA;
	diskaddr_t efi_gpe_EndingLBA;
	efi_gpe_Attrs_t efi_gpe_Attributes;
	ushort_t efi_gpe_PartitionName[EFI_PART_NAME_LEN];
	} efi_gpe_t;

	/*
	* passed to the useful (we hope) routines (efi_alloc_and_read and
	* efi_write) that take this VTOC-like struct. These routines handle
	* converting this struct into the EFI struct, generate UUIDs and
	* checksums, and perform any necessary byte-swapping to the on-disk
	* format.
	*/
	/* Solaris library abstraction for EFI partitions */
	typedef struct dk_part {
	diskaddr_t p_start; /* starting LBA */
	diskaddr_t p_size; /* size in blocks */
	struct uuid p_guid; /* partition type GUID */
	ushort_t p_tag; /* converted to part'n type GUID */
	ushort_t p_flag; /* attributes */
	char p_name[EFI_PART_NAME_LEN]; /* partition name */
	struct uuid p_uguid; /* unique partition GUID */
	uint_t p_resv[8]; /* future use - set to zero */
	} dk_part_t;

	/* Solaris library abstraction for an EFI GPT */
	#define EFI_VERSION102 0x00010002
	#define EFI_VERSION100 0x00010000
	#define EFI_VERSION_CURRENT EFI_VERSION100
	typedef struct dk_gpt {
	uint_t efi_version; /* set to EFI_VERSION_CURRENT */
	uint_t efi_nparts; /* number of partitions below */
	uint_t efi_part_size; /* size of each partition entry */
	/* efi_part_size is unused */
	uint_t efi_lbasize; /* size of block in bytes */
	diskaddr_t efi_last_lba; /* last block on the disk */
	diskaddr_t efi_first_u_lba; /* first block after labels */
	diskaddr_t efi_last_u_lba; /* last block before backup labels */
	struct uuid efi_disk_uguid; /* unique disk GUID */
	uint_t efi_flags;
	uint_t efi_reserved1; /* future use - set to zero */
	diskaddr_t efi_altern_lba; /* lba of alternate GPT header */
	uint_t efi_reserved[12]; /* future use - set to zero */
	struct dk_part efi_parts[1]; /* array of partitions */
	} dk_gpt_t;

	/* possible values for "efi_flags" */
	#define EFI_GPT_PRIMARY_CORRUPT 0x1 /* primary label corrupt */

	/* the private ioctl between libefi and the driver */
	typedef struct dk_efi {
	diskaddr_t dki_lba; /* starting block */
	len_t dki_length; /* length in bytes */
	union {
	efi_gpt_t *_dki_data;
	uint64_t _dki_data_64;
	} dki_un;
	#define dki_data dki_un._dki_data
	#define dki_data_64 dki_un._dki_data_64
	} dk_efi_t;

	struct partition64 {
	struct uuid p_type;
	uint_t p_partno;
	uint_t p_resv1;
	diskaddr_t p_start;
	diskaddr_t p_size;
	};

	/*
	* Number of EFI partitions
	*/
	#if defined(__linux__)
	#define EFI_NUMPAR 128 /* Expected by parted-1.8.1 */
	#else
	#define EFI_NUMPAR 9
	#endif

	#ifndef _KERNEL
	-extern int efi_alloc_and_init(int, uint32_t, struct dk_gpt **);
	-extern int efi_alloc_and_read(int, struct dk_gpt **);
	-extern int efi_write(int, struct dk_gpt *);
	-extern int efi_rescan(int);
	-extern void efi_free(struct dk_gpt *);
	-extern int efi_type(int);
	-extern void efi_err_check(struct dk_gpt *);
	-extern int efi_auto_sense(int fd, struct dk_gpt **);
	-extern int efi_use_whole_disk(int fd);
	+_SYS_EFI_PARTITION_H int efi_debug;
	+_SYS_EFI_PARTITION_H int efi_alloc_and_init(int, uint32_t, struct dk_gpt **);
	+_SYS_EFI_PARTITION_H int efi_alloc_and_read(int, struct dk_gpt **);
	+_SYS_EFI_PARTITION_H int efi_write(int, struct dk_gpt *);
	+_SYS_EFI_PARTITION_H int efi_rescan(int);
	+_SYS_EFI_PARTITION_H void efi_free(struct dk_gpt *);
	+_SYS_EFI_PARTITION_H int efi_type(int);
	+_SYS_EFI_PARTITION_H void efi_err_check(struct dk_gpt *);
	+_SYS_EFI_PARTITION_H int efi_use_whole_disk(int fd);
	#endif

	#ifdef __cplusplus
	}
	#endif

	#endif /* _SYS_EFI_PARTITION_H */
	diff --git a/sys/contrib/openzfs/include/sys/metaslab_impl.h b/sys/contrib/openzfs/include/sys/metaslab_impl.h
	index 3be0c466c403..9924c3ba0eaa 100644
	--- a/sys/contrib/openzfs/include/sys/metaslab_impl.h
	+++ b/sys/contrib/openzfs/include/sys/metaslab_impl.h
	@@ -1,572 +1,572 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
	* Use is subject to license terms.
	*/

	/*
	* Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	*/

	#ifndef _SYS_METASLAB_IMPL_H
	#define _SYS_METASLAB_IMPL_H

	#include <sys/metaslab.h>
	#include <sys/space_map.h>
	#include <sys/range_tree.h>
	#include <sys/vdev.h>
	#include <sys/txg.h>
	#include <sys/avl.h>
	#include <sys/multilist.h>

	#ifdef __cplusplus
	extern "C" {
	#endif

	/*
	* Metaslab allocation tracing record.
	*/
	typedef struct metaslab_alloc_trace {
	list_node_t mat_list_node;
	metaslab_group_t *mat_mg;
	metaslab_t *mat_msp;
	uint64_t mat_size;
	uint64_t mat_weight;
	uint32_t mat_dva_id;
	uint64_t mat_offset;
	int mat_allocator;
	} metaslab_alloc_trace_t;

	/*
	* Used by the metaslab allocation tracing facility to indicate
	* error conditions. These errors are stored to the offset member
	* of the metaslab_alloc_trace_t record and displayed by mdb.
	*/
	typedef enum trace_alloc_type {
	TRACE_ALLOC_FAILURE = -1ULL,
	TRACE_TOO_SMALL = -2ULL,
	TRACE_FORCE_GANG = -3ULL,
	TRACE_NOT_ALLOCATABLE = -4ULL,
	TRACE_GROUP_FAILURE = -5ULL,
	TRACE_ENOSPC = -6ULL,
	TRACE_CONDENSING = -7ULL,
	TRACE_VDEV_ERROR = -8ULL,
	TRACE_DISABLED = -9ULL,
	} trace_alloc_type_t;

	#define METASLAB_WEIGHT_PRIMARY (1ULL << 63)
	#define METASLAB_WEIGHT_SECONDARY (1ULL << 62)
	#define METASLAB_WEIGHT_CLAIM (1ULL << 61)
	#define METASLAB_WEIGHT_TYPE (1ULL << 60)
	#define METASLAB_ACTIVE_MASK \
	(METASLAB_WEIGHT_PRIMARY \| METASLAB_WEIGHT_SECONDARY \| \
	METASLAB_WEIGHT_CLAIM)

	/*
	* The metaslab weight is used to encode the amount of free space in a
	* metaslab, such that the "best" metaslab appears first when sorting the
	* metaslabs by weight. The weight (and therefore the "best" metaslab) can
	* be determined in two different ways: by computing a weighted sum of all
	* the free space in the metaslab (a space based weight) or by counting only
	* the free segments of the largest size (a segment based weight). We prefer
	* the segment based weight because it reflects how the free space is
	* comprised, but we cannot always use it -- legacy pools do not have the
	* space map histogram information necessary to determine the largest
	* contiguous regions. Pools that have the space map histogram determine
	* the segment weight by looking at each bucket in the histogram and
	* determining the free space whose size in bytes is in the range:
	* [2^i, 2^(i+1))
	* We then encode the largest index, i, that contains regions into the
	* segment-weighted value.
	*
	* Space-based weight:
	*
	* 64 56 48 40 32 24 16 8 0
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* \|PSC1\| weighted-free space \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	*
	* PS - indicates primary and secondary activation
	* C - indicates activation for claimed block zio
	* space - the fragmentation-weighted space
	*
	* Segment-based weight:
	*
	* 64 56 48 40 32 24 16 8 0
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* \|PSC0\| idx\| count of segments in region \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	*
	* PS - indicates primary and secondary activation
	* C - indicates activation for claimed block zio
	* idx - index for the highest bucket in the histogram
	* count - number of segments in the specified bucket
	*/
	#define WEIGHT_GET_ACTIVE(weight) BF64_GET((weight), 61, 3)
	#define WEIGHT_SET_ACTIVE(weight, x) BF64_SET((weight), 61, 3, x)

	#define WEIGHT_IS_SPACEBASED(weight) \
	((weight) == 0 \|\| BF64_GET((weight), 60, 1))
	#define WEIGHT_SET_SPACEBASED(weight) BF64_SET((weight), 60, 1, 1)

	/*
	* These macros are only applicable to segment-based weighting.
	*/
	#define WEIGHT_GET_INDEX(weight) BF64_GET((weight), 54, 6)
	#define WEIGHT_SET_INDEX(weight, x) BF64_SET((weight), 54, 6, x)
	#define WEIGHT_GET_COUNT(weight) BF64_GET((weight), 0, 54)
	#define WEIGHT_SET_COUNT(weight, x) BF64_SET((weight), 0, 54, x)

	/*
	* Per-allocator data structure.
	*/
	typedef struct metaslab_class_allocator {
	metaslab_group_t *mca_rotor;
	uint64_t mca_aliquot;

	/*
	* The allocation throttle works on a reservation system. Whenever
	* an asynchronous zio wants to perform an allocation it must
	* first reserve the number of blocks that it wants to allocate.
	* If there aren't sufficient slots available for the pending zio
	* then that I/O is throttled until more slots free up. The current
	* number of reserved allocations is maintained by the mca_alloc_slots
	* refcount. The mca_alloc_max_slots value determines the maximum
	* number of allocations that the system allows. Gang blocks are
	* allowed to reserve slots even if we've reached the maximum
	* number of allocations allowed.
	*/
	uint64_t mca_alloc_max_slots;
	zfs_refcount_t mca_alloc_slots;
	} metaslab_class_allocator_t;

	/*
	* A metaslab class encompasses a category of allocatable top-level vdevs.
	* Each top-level vdev is associated with a metaslab group which defines
	* the allocatable region for that vdev. Examples of these categories include
	* "normal" for data block allocations (i.e. main pool allocations) or "log"
	* for allocations designated for intent log devices (i.e. slog devices).
	* When a block allocation is requested from the SPA it is associated with a
	* metaslab_class_t, and only top-level vdevs (i.e. metaslab groups) belonging
	* to the class can be used to satisfy that request. Allocations are done
	* by traversing the metaslab groups that are linked off of the mca_rotor field.
	* This rotor points to the next metaslab group where allocations will be
	* attempted. Allocating a block is a 3 step process -- select the metaslab
	* group, select the metaslab, and then allocate the block. The metaslab
	* class defines the low-level block allocator that will be used as the
	* final step in allocation. These allocators are pluggable allowing each class
	* to use a block allocator that best suits that class.
	*/
	struct metaslab_class {
	kmutex_t mc_lock;
	spa_t *mc_spa;
	metaslab_ops_t *mc_ops;

	/*
	* Track the number of metaslab groups that have been initialized
	* and can accept allocations. An initialized metaslab group is
	* one has been completely added to the config (i.e. we have
	* updated the MOS config and the space has been added to the pool).
	*/
	uint64_t mc_groups;

	/*
	* Toggle to enable/disable the allocation throttle.
	*/
	boolean_t mc_alloc_throttle_enabled;

	uint64_t mc_alloc_groups; /* # of allocatable groups */

	uint64_t mc_alloc; /* total allocated space */
	uint64_t mc_deferred; /* total deferred frees */
	uint64_t mc_space; /* total space (alloc + free) */
	uint64_t mc_dspace; /* total deflated space */
	uint64_t mc_histogram[RANGE_TREE_HISTOGRAM_SIZE];

	/*
	* List of all loaded metaslabs in the class, sorted in order of most
	* recent use.
	*/
	- multilist_t *mc_metaslab_txg_list;
	+ multilist_t mc_metaslab_txg_list;

	metaslab_class_allocator_t mc_allocator[];
	};

	/*
	* Per-allocator data structure.
	*/
	typedef struct metaslab_group_allocator {
	uint64_t mga_cur_max_alloc_queue_depth;
	zfs_refcount_t mga_alloc_queue_depth;
	metaslab_t *mga_primary;
	metaslab_t *mga_secondary;
	} metaslab_group_allocator_t;

	/*
	* Metaslab groups encapsulate all the allocatable regions (i.e. metaslabs)
	* of a top-level vdev. They are linked together to form a circular linked
	* list and can belong to only one metaslab class. Metaslab groups may become
	* ineligible for allocations for a number of reasons such as limited free
	* space, fragmentation, or going offline. When this happens the allocator will
	* simply find the next metaslab group in the linked list and attempt
	* to allocate from that group instead.
	*/
	struct metaslab_group {
	kmutex_t mg_lock;
	avl_tree_t mg_metaslab_tree;
	uint64_t mg_aliquot;
	boolean_t mg_allocatable; /* can we allocate? */
	uint64_t mg_ms_ready;

	/*
	* A metaslab group is considered to be initialized only after
	* we have updated the MOS config and added the space to the pool.
	* We only allow allocation attempts to a metaslab group if it
	* has been initialized.
	*/
	boolean_t mg_initialized;

	uint64_t mg_free_capacity; /* percentage free */
	int64_t mg_bias;
	int64_t mg_activation_count;
	metaslab_class_t *mg_class;
	vdev_t *mg_vd;
	taskq_t *mg_taskq;
	metaslab_group_t *mg_prev;
	metaslab_group_t *mg_next;

	/*
	* In order for the allocation throttle to function properly, we cannot
	* have too many IOs going to each disk by default; the throttle
	* operates by allocating more work to disks that finish quickly, so
	* allocating larger chunks to each disk reduces its effectiveness.
	* However, if the number of IOs going to each allocator is too small,
	* we will not perform proper aggregation at the vdev_queue layer,
	* also resulting in decreased performance. Therefore, we will use a
	* ramp-up strategy.
	*
	* Each allocator in each metaslab group has a current queue depth
	* (mg_alloc_queue_depth[allocator]) and a current max queue depth
	* (mga_cur_max_alloc_queue_depth[allocator]), and each metaslab group
	* has an absolute max queue depth (mg_max_alloc_queue_depth). We
	* add IOs to an allocator until the mg_alloc_queue_depth for that
	* allocator hits the cur_max. Every time an IO completes for a given
	* allocator on a given metaslab group, we increment its cur_max until
	* it reaches mg_max_alloc_queue_depth. The cur_max resets every txg to
	* help protect against disks that decrease in performance over time.
	*
	* It's possible for an allocator to handle more allocations than
	* its max. This can occur when gang blocks are required or when other
	* groups are unable to handle their share of allocations.
	*/
	uint64_t mg_max_alloc_queue_depth;

	/*
	* A metalab group that can no longer allocate the minimum block
	* size will set mg_no_free_space. Once a metaslab group is out
	* of space then its share of work must be distributed to other
	* groups.
	*/
	boolean_t mg_no_free_space;

	uint64_t mg_allocations;
	uint64_t mg_failed_allocations;
	uint64_t mg_fragmentation;
	uint64_t mg_histogram[RANGE_TREE_HISTOGRAM_SIZE];

	int mg_ms_disabled;
	boolean_t mg_disabled_updating;
	kmutex_t mg_ms_disabled_lock;
	kcondvar_t mg_ms_disabled_cv;

	int mg_allocators;
	metaslab_group_allocator_t mg_allocator[];
	};

	/*
	* This value defines the number of elements in the ms_lbas array. The value
	* of 64 was chosen as it covers all power of 2 buckets up to UINT64_MAX.
	* This is the equivalent of highbit(UINT64_MAX).
	*/
	#define MAX_LBAS 64

	/*
	* Each metaslab maintains a set of in-core trees to track metaslab
	* operations. The in-core free tree (ms_allocatable) contains the list of
	* free segments which are eligible for allocation. As blocks are
	* allocated, the allocated segment are removed from the ms_allocatable and
	* added to a per txg allocation tree (ms_allocating). As blocks are
	* freed, they are added to the free tree (ms_freeing). These trees
	* allow us to process all allocations and frees in syncing context
	* where it is safe to update the on-disk space maps. An additional set
	* of in-core trees is maintained to track deferred frees
	* (ms_defer). Once a block is freed it will move from the
	* ms_freed to the ms_defer tree. A deferred free means that a block
	* has been freed but cannot be used by the pool until TXG_DEFER_SIZE
	* transactions groups later. For example, a block that is freed in txg
	* 50 will not be available for reallocation until txg 52 (50 +
	* TXG_DEFER_SIZE). This provides a safety net for uberblock rollback.
	* A pool could be safely rolled back TXG_DEFERS_SIZE transactions
	* groups and ensure that no block has been reallocated.
	*
	* The simplified transition diagram looks like this:
	*
	*
	* ALLOCATE
	* \|
	* V
	* free segment (ms_allocatable) -> ms_allocating[4] -> (write to space map)
	* ^
	* \| ms_freeing <--- FREE
	* \| \|
	* \| v
	* \| ms_freed
	* \| \|
	* +-------- ms_defer[2] <-------+-------> (write to space map)
	*
	*
	* Each metaslab's space is tracked in a single space map in the MOS,
	* which is only updated in syncing context. Each time we sync a txg,
	* we append the allocs and frees from that txg to the space map. The
	* pool space is only updated once all metaslabs have finished syncing.
	*
	* To load the in-core free tree we read the space map from disk. This
	* object contains a series of alloc and free records that are combined
	* to make up the list of all free segments in this metaslab. These
	* segments are represented in-core by the ms_allocatable and are stored
	* in an AVL tree.
	*
	* As the space map grows (as a result of the appends) it will
	* eventually become space-inefficient. When the metaslab's in-core
	* free tree is zfs_condense_pct/100 times the size of the minimal
	* on-disk representation, we rewrite it in its minimized form. If a
	* metaslab needs to condense then we must set the ms_condensing flag to
	* ensure that allocations are not performed on the metaslab that is
	* being written.
	*/
	struct metaslab {
	/*
	* This is the main lock of the metaslab and its purpose is to
	* coordinate our allocations and frees [e.g metaslab_block_alloc(),
	* metaslab_free_concrete(), ..etc] with our various syncing
	* procedures [e.g. metaslab_sync(), metaslab_sync_done(), ..etc].
	*
	* The lock is also used during some miscellaneous operations like
	* using the metaslab's histogram for the metaslab group's histogram
	* aggregation, or marking the metaslab for initialization.
	*/
	kmutex_t ms_lock;

	/*
	* Acquired together with the ms_lock whenever we expect to
	* write to metaslab data on-disk (i.e flushing entries to
	* the metaslab's space map). It helps coordinate readers of
	* the metaslab's space map [see spa_vdev_remove_thread()]
	* with writers [see metaslab_sync() or metaslab_flush()].
	*
	* Note that metaslab_load(), even though a reader, uses
	* a completely different mechanism to deal with the reading
	* of the metaslab's space map based on ms_synced_length. That
	* said, the function still uses the ms_sync_lock after it
	* has read the ms_sm [see relevant comment in metaslab_load()
	* as to why].
	*/
	kmutex_t ms_sync_lock;

	kcondvar_t ms_load_cv;
	space_map_t *ms_sm;
	uint64_t ms_id;
	uint64_t ms_start;
	uint64_t ms_size;
	uint64_t ms_fragmentation;

	range_tree_t *ms_allocating[TXG_SIZE];
	range_tree_t *ms_allocatable;
	uint64_t ms_allocated_this_txg;
	uint64_t ms_allocating_total;

	/*
	* The following range trees are accessed only from syncing context.
	* ms_free*tree only have entries while syncing, and are empty
	* between syncs.
	*/
	range_tree_t ms_freeing; / to free this syncing txg */
	range_tree_t ms_freed; / already freed this syncing txg */
	range_tree_t *ms_defer[TXG_DEFER_SIZE];
	range_tree_t ms_checkpointing; / to add to the checkpoint */

	/*
	* The ms_trim tree is the set of allocatable segments which are
	* eligible for trimming. (When the metaslab is loaded, it's a
	* subset of ms_allocatable.) It's kept in-core as long as the
	* autotrim property is set and is not vacated when the metaslab
	* is unloaded. Its purpose is to aggregate freed ranges to
	* facilitate efficient trimming.
	*/
	range_tree_t *ms_trim;

	boolean_t ms_condensing; /* condensing? */
	boolean_t ms_condense_wanted;

	/*
	* The number of consumers which have disabled the metaslab.
	*/
	uint64_t ms_disabled;

	/*
	* We must always hold the ms_lock when modifying ms_loaded
	* and ms_loading.
	*/
	boolean_t ms_loaded;
	boolean_t ms_loading;
	kcondvar_t ms_flush_cv;
	boolean_t ms_flushing;

	/*
	* The following histograms count entries that are in the
	* metaslab's space map (and its histogram) but are not in
	* ms_allocatable yet, because they are in ms_freed, ms_freeing,
	* or ms_defer[].
	*
	* When the metaslab is not loaded, its ms_weight needs to
	* reflect what is allocatable (i.e. what will be part of
	* ms_allocatable if it is loaded). The weight is computed from
	* the spacemap histogram, but that includes ranges that are
	* not yet allocatable (because they are in ms_freed,
	* ms_freeing, or ms_defer[]). Therefore, when calculating the
	* weight, we need to remove those ranges.
	*
	* The ranges in the ms_freed and ms_defer[] range trees are all
	* present in the spacemap. However, the spacemap may have
	* multiple entries to represent a contiguous range, because it
	* is written across multiple sync passes, but the changes of
	* all sync passes are consolidated into the range trees.
	* Adjacent ranges that are freed in different sync passes of
	* one txg will be represented separately (as 2 or more entries)
	* in the space map (and its histogram), but these adjacent
	* ranges will be consolidated (represented as one entry) in the
	* ms_freed/ms_defer[] range trees (and their histograms).
	*
	* When calculating the weight, we can not simply subtract the
	* range trees' histograms from the spacemap's histogram,
	* because the range trees' histograms may have entries in
	* higher buckets than the spacemap, due to consolidation.
	* Instead we must subtract the exact entries that were added to
	* the spacemap's histogram. ms_synchist and ms_deferhist[]
	* represent these exact entries, so we can subtract them from
	* the spacemap's histogram when calculating ms_weight.
	*
	* ms_synchist represents the same ranges as ms_freeing +
	* ms_freed, but without consolidation across sync passes.
	*
	* ms_deferhist[i] represents the same ranges as ms_defer[i],
	* but without consolidation across sync passes.
	*/
	uint64_t ms_synchist[SPACE_MAP_HISTOGRAM_SIZE];
	uint64_t ms_deferhist[TXG_DEFER_SIZE][SPACE_MAP_HISTOGRAM_SIZE];

	/*
	* Tracks the exact amount of allocated space of this metaslab
	* (and specifically the metaslab's space map) up to the most
	* recently completed sync pass [see usage in metaslab_sync()].
	*/
	uint64_t ms_allocated_space;
	int64_t ms_deferspace; /* sum of ms_defermap[] space */
	uint64_t ms_weight; /* weight vs. others in group */
	uint64_t ms_activation_weight; /* activation weight */

	/*
	* Track of whenever a metaslab is selected for loading or allocation.
	* We use this value to determine how long the metaslab should
	* stay cached.
	*/
	uint64_t ms_selected_txg;
	/*
	* ms_load/unload_time can be used for performance monitoring
	* (e.g. by dtrace or mdb).
	*/
	hrtime_t ms_load_time; /* time last loaded */
	hrtime_t ms_unload_time; /* time last unloaded */
	hrtime_t ms_selected_time; /* time last allocated from */

	uint64_t ms_alloc_txg; /* last successful alloc (debug only) */
	uint64_t ms_max_size; /* maximum allocatable size */

	/*
	* -1 if it's not active in an allocator, otherwise set to the allocator
	* this metaslab is active for.
	*/
	int ms_allocator;
	boolean_t ms_primary; /* Only valid if ms_allocator is not -1 */

	/*
	* The metaslab block allocators can optionally use a size-ordered
	* range tree and/or an array of LBAs. Not all allocators use
	* this functionality. The ms_allocatable_by_size should always
	* contain the same number of segments as the ms_allocatable. The
	* only difference is that the ms_allocatable_by_size is ordered by
	* segment sizes.
	*/
	zfs_btree_t ms_allocatable_by_size;
	zfs_btree_t ms_unflushed_frees_by_size;
	uint64_t ms_lbas[MAX_LBAS];

	metaslab_group_t ms_group; / metaslab group */
	avl_node_t ms_group_node; /* node in metaslab group tree */
	txg_node_t ms_txg_node; /* per-txg dirty metaslab links */
	avl_node_t ms_spa_txg_node; /* node in spa_metaslabs_by_txg */
	/*
	* Node in metaslab class's selected txg list
	*/
	multilist_node_t ms_class_txg_node;

	/*
	* Allocs and frees that are committed to the vdev log spacemap but
	* not yet to this metaslab's spacemap.
	*/
	range_tree_t *ms_unflushed_allocs;
	range_tree_t *ms_unflushed_frees;

	/*
	* We have flushed entries up to but not including this TXG. In
	* other words, all changes from this TXG and onward should not
	* be in this metaslab's space map and must be read from the
	* log space maps.
	*/
	uint64_t ms_unflushed_txg;

	/* updated every time we are done syncing the metaslab's space map */
	uint64_t ms_synced_length;

	boolean_t ms_new;
	};

	typedef struct metaslab_unflushed_phys {
	/* on-disk counterpart of ms_unflushed_txg */
	uint64_t msp_unflushed_txg;
	} metaslab_unflushed_phys_t;

	#ifdef __cplusplus
	}
	#endif

	#endif /* _SYS_METASLAB_IMPL_H */
	diff --git a/sys/contrib/openzfs/include/sys/multilist.h b/sys/contrib/openzfs/include/sys/multilist.h
	index 0c7b4075d9a3..26f37c37ab38 100644
	--- a/sys/contrib/openzfs/include/sys/multilist.h
	+++ b/sys/contrib/openzfs/include/sys/multilist.h
	@@ -1,107 +1,108 @@
	/*
	* CDDL HEADER START
	*
	* This file and its contents are supplied under the terms of the
	* Common Development and Distribution License ("CDDL"), version 1.0.
	* You may only use this file in accordance with the terms of version
	* 1.0 of the CDDL.
	*
	* A full copy of the text of the CDDL should have accompanied this
	* source. A copy of the CDDL is also available via the Internet at
	* http://www.illumos.org/license/CDDL.
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2013, 2017 by Delphix. All rights reserved.
	*/

	#ifndef _SYS_MULTILIST_H
	#define _SYS_MULTILIST_H

	#include <sys/zfs_context.h>

	#ifdef __cplusplus
	extern "C" {
	#endif

	typedef list_node_t multilist_node_t;
	typedef struct multilist multilist_t;
	typedef struct multilist_sublist multilist_sublist_t;
	typedef unsigned int multilist_sublist_index_func_t(multilist_t , void );

	struct multilist_sublist {
	/*
	* The mutex used internally to implement thread safe insertions
	* and removals to this individual sublist. It can also be locked
	* by a consumer using multilist_sublist_{lock,unlock}, which is
	* useful if a consumer needs to traverse the list in a thread
	* safe manner.
	*/
	kmutex_t mls_lock;
	/*
	* The actual list object containing all objects in this sublist.
	*/
	list_t mls_list;
	/*
	* Pad to cache line, in an effort to try and prevent cache line
	* contention.
	*/
	} ____cacheline_aligned;

	struct multilist {
	/*
	* This is used to get to the multilist_node_t structure given
	* the void *object contained on the list.
	*/
	size_t ml_offset;
	/*
	* The number of sublists used internally by this multilist.
	*/
	uint64_t ml_num_sublists;
	/*
	* The array of pointers to the actual sublists.
	*/
	multilist_sublist_t *ml_sublists;
	/*
	* Pointer to function which determines the sublist to use
	* when inserting and removing objects from this multilist.
	* Please see the comment above multilist_create for details.
	*/
	multilist_sublist_index_func_t *ml_index_func;
	};

	+void multilist_create(multilist_t *, size_t, size_t,
	+ multilist_sublist_index_func_t *);
	void multilist_destroy(multilist_t *);
	-multilist_t multilist_create(size_t, size_t, multilist_sublist_index_func_t );

	void multilist_insert(multilist_t , void );
	void multilist_remove(multilist_t , void );
	int multilist_is_empty(multilist_t *);

	unsigned int multilist_get_num_sublists(multilist_t *);
	unsigned int multilist_get_random_index(multilist_t *);

	multilist_sublist_t multilist_sublist_lock(multilist_t , unsigned int);
	multilist_sublist_t multilist_sublist_lock_obj(multilist_t , void *);
	void multilist_sublist_unlock(multilist_sublist_t *);

	void multilist_sublist_insert_head(multilist_sublist_t , void );
	void multilist_sublist_insert_tail(multilist_sublist_t , void );
	void multilist_sublist_move_forward(multilist_sublist_t mls, void obj);
	void multilist_sublist_remove(multilist_sublist_t , void );
	int multilist_sublist_is_empty(multilist_sublist_t *);
	int multilist_sublist_is_empty_idx(multilist_t *, unsigned int);

	void multilist_sublist_head(multilist_sublist_t );
	void multilist_sublist_tail(multilist_sublist_t );
	void multilist_sublist_next(multilist_sublist_t , void *);
	void multilist_sublist_prev(multilist_sublist_t , void *);

	void multilist_link_init(multilist_node_t *);
	int multilist_link_active(multilist_node_t *);

	#ifdef __cplusplus
	}
	#endif

	#endif /* _SYS_MULTILIST_H */
	diff --git a/sys/contrib/openzfs/include/sys/nvpair.h b/sys/contrib/openzfs/include/sys/nvpair.h
	index b0be8bd7ada1..76d383a3c681 100644
	--- a/sys/contrib/openzfs/include/sys/nvpair.h
	+++ b/sys/contrib/openzfs/include/sys/nvpair.h
	@@ -1,358 +1,407 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	*/

	#ifndef _SYS_NVPAIR_H
	-#define _SYS_NVPAIR_H
	+#define _SYS_NVPAIR_H extern __attribute__((visibility("default")))

	#include <sys/types.h>
	#include <sys/time.h>
	#include <sys/errno.h>

	#ifdef __cplusplus
	extern "C" {
	#endif

	typedef enum {
	DATA_TYPE_DONTCARE = -1,
	DATA_TYPE_UNKNOWN = 0,
	DATA_TYPE_BOOLEAN,
	DATA_TYPE_BYTE,
	DATA_TYPE_INT16,
	DATA_TYPE_UINT16,
	DATA_TYPE_INT32,
	DATA_TYPE_UINT32,
	DATA_TYPE_INT64,
	DATA_TYPE_UINT64,
	DATA_TYPE_STRING,
	DATA_TYPE_BYTE_ARRAY,
	DATA_TYPE_INT16_ARRAY,
	DATA_TYPE_UINT16_ARRAY,
	DATA_TYPE_INT32_ARRAY,
	DATA_TYPE_UINT32_ARRAY,
	DATA_TYPE_INT64_ARRAY,
	DATA_TYPE_UINT64_ARRAY,
	DATA_TYPE_STRING_ARRAY,
	DATA_TYPE_HRTIME,
	DATA_TYPE_NVLIST,
	DATA_TYPE_NVLIST_ARRAY,
	DATA_TYPE_BOOLEAN_VALUE,
	DATA_TYPE_INT8,
	DATA_TYPE_UINT8,
	DATA_TYPE_BOOLEAN_ARRAY,
	DATA_TYPE_INT8_ARRAY,
	#if !defined(_KERNEL) && !defined(_STANDALONE)
	DATA_TYPE_UINT8_ARRAY,
	DATA_TYPE_DOUBLE
	#else
	DATA_TYPE_UINT8_ARRAY
	#endif
	} data_type_t;

	typedef struct nvpair {
	int32_t nvp_size; /* size of this nvpair */
	int16_t nvp_name_sz; /* length of name string */
	int16_t nvp_reserve; /* not used */
	int32_t nvp_value_elem; /* number of elements for array types */
	data_type_t nvp_type; /* type of value */
	/* name string */
	/* aligned ptr array for string arrays */
	/* aligned array of data for value */
	} nvpair_t;

	/* nvlist header */
	typedef struct nvlist {
	int32_t nvl_version;
	uint32_t nvl_nvflag; /* persistent flags */
	uint64_t nvl_priv; /* ptr to private data if not packed */
	uint32_t nvl_flag;
	int32_t nvl_pad; /* currently not used, for alignment */
	} nvlist_t;

	/* nvp implementation version */
	#define NV_VERSION 0

	/* nvlist pack encoding */
	#define NV_ENCODE_NATIVE 0
	#define NV_ENCODE_XDR 1

	/* nvlist persistent unique name flags, stored in nvl_nvflags */
	#define NV_UNIQUE_NAME 0x1
	#define NV_UNIQUE_NAME_TYPE 0x2

	/* nvlist lookup pairs related flags */
	#define NV_FLAG_NOENTOK 0x1

	/* convenience macros */
	#define NV_ALIGN(x) (((ulong_t)(x) + 7ul) & ~7ul)
	#define NV_ALIGN4(x) (((x) + 3) & ~3)

	#define NVP_SIZE(nvp) ((nvp)->nvp_size)
	#define NVP_NAME(nvp) ((char *)(nvp) + sizeof (nvpair_t))
	#define NVP_TYPE(nvp) ((nvp)->nvp_type)
	#define NVP_NELEM(nvp) ((nvp)->nvp_value_elem)
	#define NVP_VALUE(nvp) ((char *)(nvp) + NV_ALIGN(sizeof (nvpair_t) \
	+ (nvp)->nvp_name_sz))

	#define NVL_VERSION(nvl) ((nvl)->nvl_version)
	#define NVL_SIZE(nvl) ((nvl)->nvl_size)
	#define NVL_FLAG(nvl) ((nvl)->nvl_flag)

	/* NV allocator framework */
	typedef struct nv_alloc_ops nv_alloc_ops_t;

	typedef struct nv_alloc {
	const nv_alloc_ops_t *nva_ops;
	void *nva_arg;
	} nv_alloc_t;

	struct nv_alloc_ops {
	int (nv_ao_init)(nv_alloc_t , va_list);
	void (nv_ao_fini)(nv_alloc_t );
	void (nv_ao_alloc)(nv_alloc_t *, size_t);
	void (nv_ao_free)(nv_alloc_t , void *, size_t);
	void (nv_ao_reset)(nv_alloc_t );
	};

	-extern const nv_alloc_ops_t *nv_fixed_ops;
	-extern nv_alloc_t *nv_alloc_nosleep;
	+_SYS_NVPAIR_H const nv_alloc_ops_t *nv_fixed_ops;
	+_SYS_NVPAIR_H nv_alloc_t *nv_alloc_nosleep;

	#if defined(_KERNEL)
	-extern nv_alloc_t *nv_alloc_sleep;
	-extern nv_alloc_t *nv_alloc_pushpage;
	+_SYS_NVPAIR_H nv_alloc_t *nv_alloc_sleep;
	+_SYS_NVPAIR_H nv_alloc_t *nv_alloc_pushpage;
	#endif

	-int nv_alloc_init(nv_alloc_t , const nv_alloc_ops_t , /* args */ ...);
	-void nv_alloc_reset(nv_alloc_t *);
	-void nv_alloc_fini(nv_alloc_t *);
	+_SYS_NVPAIR_H int nv_alloc_init(nv_alloc_t , const nv_alloc_ops_t ,
	+ /* args */ ...);
	+_SYS_NVPAIR_H void nv_alloc_reset(nv_alloc_t *);
	+_SYS_NVPAIR_H void nv_alloc_fini(nv_alloc_t *);

	/* list management */
	-int nvlist_alloc(nvlist_t **, uint_t, int);
	-void nvlist_free(nvlist_t *);
	-int nvlist_size(nvlist_t , size_t , int);
	-int nvlist_pack(nvlist_t , char , size_t , int, int);
	-int nvlist_unpack(char , size_t, nvlist_t *, int);
	-int nvlist_dup(nvlist_t , nvlist_t *, int);
	-int nvlist_merge(nvlist_t , nvlist_t , int);
	-
	-uint_t nvlist_nvflag(nvlist_t *);
	-
	-int nvlist_xalloc(nvlist_t *, uint_t, nv_alloc_t );
	-int nvlist_xpack(nvlist_t , char , size_t , int, nv_alloc_t *);
	-int nvlist_xunpack(char , size_t, nvlist_t , nv_alloc_t );
	-int nvlist_xdup(nvlist_t , nvlist_t , nv_alloc_t );
	-nv_alloc_t nvlist_lookup_nv_alloc(nvlist_t );
	-
	-int nvlist_add_nvpair(nvlist_t , nvpair_t );
	-int nvlist_add_boolean(nvlist_t , const char );
	-int nvlist_add_boolean_value(nvlist_t , const char , boolean_t);
	-int nvlist_add_byte(nvlist_t , const char , uchar_t);
	-int nvlist_add_int8(nvlist_t , const char , int8_t);
	-int nvlist_add_uint8(nvlist_t , const char , uint8_t);
	-int nvlist_add_int16(nvlist_t , const char , int16_t);
	-int nvlist_add_uint16(nvlist_t , const char , uint16_t);
	-int nvlist_add_int32(nvlist_t , const char , int32_t);
	-int nvlist_add_uint32(nvlist_t , const char , uint32_t);
	-int nvlist_add_int64(nvlist_t , const char , int64_t);
	-int nvlist_add_uint64(nvlist_t , const char , uint64_t);
	-int nvlist_add_string(nvlist_t , const char , const char *);
	-int nvlist_add_nvlist(nvlist_t , const char , nvlist_t *);
	-int nvlist_add_boolean_array(nvlist_t , const char , boolean_t *, uint_t);
	-int nvlist_add_byte_array(nvlist_t , const char , uchar_t *, uint_t);
	-int nvlist_add_int8_array(nvlist_t , const char , int8_t *, uint_t);
	-int nvlist_add_uint8_array(nvlist_t , const char , uint8_t *, uint_t);
	-int nvlist_add_int16_array(nvlist_t , const char , int16_t *, uint_t);
	-int nvlist_add_uint16_array(nvlist_t , const char , uint16_t *, uint_t);
	-int nvlist_add_int32_array(nvlist_t , const char , int32_t *, uint_t);
	-int nvlist_add_uint32_array(nvlist_t , const char , uint32_t *, uint_t);
	-int nvlist_add_int64_array(nvlist_t , const char , int64_t *, uint_t);
	-int nvlist_add_uint64_array(nvlist_t , const char , uint64_t *, uint_t);
	-int nvlist_add_string_array(nvlist_t , const char , char const , uint_t);
	-int nvlist_add_nvlist_array(nvlist_t , const char , nvlist_t **, uint_t);
	-int nvlist_add_hrtime(nvlist_t , const char , hrtime_t);
	+_SYS_NVPAIR_H int nvlist_alloc(nvlist_t **, uint_t, int);
	+_SYS_NVPAIR_H void nvlist_free(nvlist_t *);
	+_SYS_NVPAIR_H int nvlist_size(nvlist_t , size_t , int);
	+_SYS_NVPAIR_H int nvlist_pack(nvlist_t , char , size_t , int, int);
	+_SYS_NVPAIR_H int nvlist_unpack(char , size_t, nvlist_t *, int);
	+_SYS_NVPAIR_H int nvlist_dup(nvlist_t , nvlist_t *, int);
	+_SYS_NVPAIR_H int nvlist_merge(nvlist_t , nvlist_t , int);
	+
	+_SYS_NVPAIR_H uint_t nvlist_nvflag(nvlist_t *);
	+
	+_SYS_NVPAIR_H int nvlist_xalloc(nvlist_t *, uint_t, nv_alloc_t );
	+_SYS_NVPAIR_H int nvlist_xpack(nvlist_t , char , size_t , int,
	+ nv_alloc_t *);
	+_SYS_NVPAIR_H int nvlist_xunpack(char , size_t, nvlist_t , nv_alloc_t );
	+_SYS_NVPAIR_H int nvlist_xdup(nvlist_t , nvlist_t , nv_alloc_t );
	+_SYS_NVPAIR_H nv_alloc_t nvlist_lookup_nv_alloc(nvlist_t );
	+
	+_SYS_NVPAIR_H int nvlist_add_nvpair(nvlist_t , nvpair_t );
	+_SYS_NVPAIR_H int nvlist_add_boolean(nvlist_t , const char );
	+_SYS_NVPAIR_H int nvlist_add_boolean_value(nvlist_t , const char , boolean_t);
	+_SYS_NVPAIR_H int nvlist_add_byte(nvlist_t , const char , uchar_t);
	+_SYS_NVPAIR_H int nvlist_add_int8(nvlist_t , const char , int8_t);
	+_SYS_NVPAIR_H int nvlist_add_uint8(nvlist_t , const char , uint8_t);
	+_SYS_NVPAIR_H int nvlist_add_int16(nvlist_t , const char , int16_t);
	+_SYS_NVPAIR_H int nvlist_add_uint16(nvlist_t , const char , uint16_t);
	+_SYS_NVPAIR_H int nvlist_add_int32(nvlist_t , const char , int32_t);
	+_SYS_NVPAIR_H int nvlist_add_uint32(nvlist_t , const char , uint32_t);
	+_SYS_NVPAIR_H int nvlist_add_int64(nvlist_t , const char , int64_t);
	+_SYS_NVPAIR_H int nvlist_add_uint64(nvlist_t , const char , uint64_t);
	+_SYS_NVPAIR_H int nvlist_add_string(nvlist_t , const char , const char *);
	+_SYS_NVPAIR_H int nvlist_add_nvlist(nvlist_t , const char , nvlist_t *);
	+_SYS_NVPAIR_H int nvlist_add_boolean_array(nvlist_t , const char ,
	+ boolean_t *, uint_t);
	+_SYS_NVPAIR_H int nvlist_add_byte_array(nvlist_t , const char , uchar_t *,
	+ uint_t);
	+_SYS_NVPAIR_H int nvlist_add_int8_array(nvlist_t , const char , int8_t *,
	+ uint_t);
	+_SYS_NVPAIR_H int nvlist_add_uint8_array(nvlist_t , const char , uint8_t *,
	+ uint_t);
	+_SYS_NVPAIR_H int nvlist_add_int16_array(nvlist_t , const char , int16_t *,
	+ uint_t);
	+_SYS_NVPAIR_H int nvlist_add_uint16_array(nvlist_t , const char , uint16_t *,
	+ uint_t);
	+_SYS_NVPAIR_H int nvlist_add_int32_array(nvlist_t , const char , int32_t *,
	+ uint_t);
	+_SYS_NVPAIR_H int nvlist_add_uint32_array(nvlist_t , const char , uint32_t *,
	+ uint_t);
	+_SYS_NVPAIR_H int nvlist_add_int64_array(nvlist_t , const char , int64_t *,
	+ uint_t);
	+_SYS_NVPAIR_H int nvlist_add_uint64_array(nvlist_t , const char , uint64_t *,
	+ uint_t);
	+_SYS_NVPAIR_H int nvlist_add_string_array(nvlist_t , const char ,
	+ char * const *, uint_t);
	+_SYS_NVPAIR_H int nvlist_add_nvlist_array(nvlist_t , const char ,
	+ nvlist_t **, uint_t);
	+_SYS_NVPAIR_H int nvlist_add_hrtime(nvlist_t , const char , hrtime_t);
	#if !defined(_KERNEL) && !defined(_STANDALONE)
	-int nvlist_add_double(nvlist_t , const char , double);
	+_SYS_NVPAIR_H int nvlist_add_double(nvlist_t , const char , double);
	#endif

	-int nvlist_remove(nvlist_t , const char , data_type_t);
	-int nvlist_remove_all(nvlist_t , const char );
	-int nvlist_remove_nvpair(nvlist_t , nvpair_t );
	-
	-int nvlist_lookup_boolean(nvlist_t , const char );
	-int nvlist_lookup_boolean_value(nvlist_t , const char , boolean_t *);
	-int nvlist_lookup_byte(nvlist_t , const char , uchar_t *);
	-int nvlist_lookup_int8(nvlist_t , const char , int8_t *);
	-int nvlist_lookup_uint8(nvlist_t , const char , uint8_t *);
	-int nvlist_lookup_int16(nvlist_t , const char , int16_t *);
	-int nvlist_lookup_uint16(nvlist_t , const char , uint16_t *);
	-int nvlist_lookup_int32(nvlist_t , const char , int32_t *);
	-int nvlist_lookup_uint32(nvlist_t , const char , uint32_t *);
	-int nvlist_lookup_int64(nvlist_t , const char , int64_t *);
	-int nvlist_lookup_uint64(nvlist_t , const char , uint64_t *);
	-int nvlist_lookup_string(nvlist_t , const char , char **);
	-int nvlist_lookup_nvlist(nvlist_t , const char , nvlist_t **);
	-int nvlist_lookup_boolean_array(nvlist_t , const char ,
	+_SYS_NVPAIR_H int nvlist_remove(nvlist_t , const char , data_type_t);
	+_SYS_NVPAIR_H int nvlist_remove_all(nvlist_t , const char );
	+_SYS_NVPAIR_H int nvlist_remove_nvpair(nvlist_t , nvpair_t );
	+
	+_SYS_NVPAIR_H int nvlist_lookup_boolean(nvlist_t , const char );
	+_SYS_NVPAIR_H int nvlist_lookup_boolean_value(nvlist_t , const char ,
	+ boolean_t *);
	+_SYS_NVPAIR_H int nvlist_lookup_byte(nvlist_t , const char , uchar_t *);
	+_SYS_NVPAIR_H int nvlist_lookup_int8(nvlist_t , const char , int8_t *);
	+_SYS_NVPAIR_H int nvlist_lookup_uint8(nvlist_t , const char , uint8_t *);
	+_SYS_NVPAIR_H int nvlist_lookup_int16(nvlist_t , const char , int16_t *);
	+_SYS_NVPAIR_H int nvlist_lookup_uint16(nvlist_t , const char , uint16_t *);
	+_SYS_NVPAIR_H int nvlist_lookup_int32(nvlist_t , const char , int32_t *);
	+_SYS_NVPAIR_H int nvlist_lookup_uint32(nvlist_t , const char , uint32_t *);
	+_SYS_NVPAIR_H int nvlist_lookup_int64(nvlist_t , const char , int64_t *);
	+_SYS_NVPAIR_H int nvlist_lookup_uint64(nvlist_t , const char , uint64_t *);
	+_SYS_NVPAIR_H int nvlist_lookup_string(nvlist_t , const char , char **);
	+_SYS_NVPAIR_H int nvlist_lookup_nvlist(nvlist_t , const char , nvlist_t **);
	+_SYS_NVPAIR_H int nvlist_lookup_boolean_array(nvlist_t , const char ,
	boolean_t *, uint_t );
	-int nvlist_lookup_byte_array(nvlist_t , const char , uchar_t *, uint_t );
	-int nvlist_lookup_int8_array(nvlist_t , const char , int8_t *, uint_t );
	-int nvlist_lookup_uint8_array(nvlist_t , const char , uint8_t *, uint_t );
	-int nvlist_lookup_int16_array(nvlist_t , const char , int16_t *, uint_t );
	-int nvlist_lookup_uint16_array(nvlist_t , const char , uint16_t *, uint_t );
	-int nvlist_lookup_int32_array(nvlist_t , const char , int32_t *, uint_t );
	-int nvlist_lookup_uint32_array(nvlist_t , const char , uint32_t *, uint_t );
	-int nvlist_lookup_int64_array(nvlist_t , const char , int64_t *, uint_t );
	-int nvlist_lookup_uint64_array(nvlist_t , const char , uint64_t *, uint_t );
	-int nvlist_lookup_string_array(nvlist_t , const char , char **, uint_t );
	-int nvlist_lookup_nvlist_array(nvlist_t , const char ,
	+_SYS_NVPAIR_H int nvlist_lookup_byte_array(nvlist_t , const char , uchar_t **,
	+ uint_t *);
	+_SYS_NVPAIR_H int nvlist_lookup_int8_array(nvlist_t , const char , int8_t **,
	+ uint_t *);
	+_SYS_NVPAIR_H int nvlist_lookup_uint8_array(nvlist_t , const char ,
	+ uint8_t *, uint_t );
	+_SYS_NVPAIR_H int nvlist_lookup_int16_array(nvlist_t , const char ,
	+ int16_t *, uint_t );
	+_SYS_NVPAIR_H int nvlist_lookup_uint16_array(nvlist_t , const char ,
	+ uint16_t *, uint_t );
	+_SYS_NVPAIR_H int nvlist_lookup_int32_array(nvlist_t , const char ,
	+ int32_t *, uint_t );
	+_SYS_NVPAIR_H int nvlist_lookup_uint32_array(nvlist_t , const char ,
	+ uint32_t *, uint_t );
	+_SYS_NVPAIR_H int nvlist_lookup_int64_array(nvlist_t , const char ,
	+ int64_t *, uint_t );
	+_SYS_NVPAIR_H int nvlist_lookup_uint64_array(nvlist_t , const char ,
	+ uint64_t *, uint_t );
	+_SYS_NVPAIR_H int nvlist_lookup_string_array(nvlist_t , const char ,
	+ char **, uint_t );
	+_SYS_NVPAIR_H int nvlist_lookup_nvlist_array(nvlist_t , const char ,
	nvlist_t **, uint_t );
	-int nvlist_lookup_hrtime(nvlist_t , const char , hrtime_t *);
	-int nvlist_lookup_pairs(nvlist_t *, int, ...);
	+_SYS_NVPAIR_H int nvlist_lookup_hrtime(nvlist_t , const char , hrtime_t *);
	+_SYS_NVPAIR_H int nvlist_lookup_pairs(nvlist_t *, int, ...);
	#if !defined(_KERNEL) && !defined(_STANDALONE)
	-int nvlist_lookup_double(nvlist_t , const char , double *);
	+_SYS_NVPAIR_H int nvlist_lookup_double(nvlist_t , const char , double *);
	#endif

	-int nvlist_lookup_nvpair(nvlist_t , const char , nvpair_t **);
	-int nvlist_lookup_nvpair_embedded_index(nvlist_t , const char , nvpair_t **,
	- int , char *);
	-boolean_t nvlist_exists(nvlist_t , const char );
	-boolean_t nvlist_empty(nvlist_t *);
	+_SYS_NVPAIR_H int nvlist_lookup_nvpair(nvlist_t , const char , nvpair_t **);
	+_SYS_NVPAIR_H int nvlist_lookup_nvpair_embedded_index(nvlist_t , const char ,
	+ nvpair_t *, int , char **);
	+_SYS_NVPAIR_H boolean_t nvlist_exists(nvlist_t , const char );
	+_SYS_NVPAIR_H boolean_t nvlist_empty(nvlist_t *);

	/* processing nvpair */
	-nvpair_t nvlist_next_nvpair(nvlist_t , nvpair_t *);
	-nvpair_t nvlist_prev_nvpair(nvlist_t , nvpair_t *);
	-char nvpair_name(nvpair_t );
	-data_type_t nvpair_type(nvpair_t *);
	-int nvpair_type_is_array(nvpair_t *);
	-int nvpair_value_boolean_value(nvpair_t , boolean_t );
	-int nvpair_value_byte(nvpair_t , uchar_t );
	-int nvpair_value_int8(nvpair_t , int8_t );
	-int nvpair_value_uint8(nvpair_t , uint8_t );
	-int nvpair_value_int16(nvpair_t , int16_t );
	-int nvpair_value_uint16(nvpair_t , uint16_t );
	-int nvpair_value_int32(nvpair_t , int32_t );
	-int nvpair_value_uint32(nvpair_t , uint32_t );
	-int nvpair_value_int64(nvpair_t , int64_t );
	-int nvpair_value_uint64(nvpair_t , uint64_t );
	-int nvpair_value_string(nvpair_t , char *);
	-int nvpair_value_nvlist(nvpair_t , nvlist_t *);
	-int nvpair_value_boolean_array(nvpair_t , boolean_t , uint_t );
	-int nvpair_value_byte_array(nvpair_t , uchar_t , uint_t );
	-int nvpair_value_int8_array(nvpair_t , int8_t , uint_t );
	-int nvpair_value_uint8_array(nvpair_t , uint8_t , uint_t );
	-int nvpair_value_int16_array(nvpair_t , int16_t , uint_t );
	-int nvpair_value_uint16_array(nvpair_t , uint16_t , uint_t );
	-int nvpair_value_int32_array(nvpair_t , int32_t , uint_t );
	-int nvpair_value_uint32_array(nvpair_t , uint32_t , uint_t );
	-int nvpair_value_int64_array(nvpair_t , int64_t , uint_t );
	-int nvpair_value_uint64_array(nvpair_t , uint64_t , uint_t );
	-int nvpair_value_string_array(nvpair_t , char *, uint_t );
	-int nvpair_value_nvlist_array(nvpair_t , nvlist_t *, uint_t );
	-int nvpair_value_hrtime(nvpair_t , hrtime_t );
	+_SYS_NVPAIR_H nvpair_t nvlist_next_nvpair(nvlist_t , nvpair_t *);
	+_SYS_NVPAIR_H nvpair_t nvlist_prev_nvpair(nvlist_t , nvpair_t *);
	+_SYS_NVPAIR_H char nvpair_name(nvpair_t );
	+_SYS_NVPAIR_H data_type_t nvpair_type(nvpair_t *);
	+_SYS_NVPAIR_H int nvpair_type_is_array(nvpair_t *);
	+_SYS_NVPAIR_H int nvpair_value_boolean_value(nvpair_t , boolean_t );
	+_SYS_NVPAIR_H int nvpair_value_byte(nvpair_t , uchar_t );
	+_SYS_NVPAIR_H int nvpair_value_int8(nvpair_t , int8_t );
	+_SYS_NVPAIR_H int nvpair_value_uint8(nvpair_t , uint8_t );
	+_SYS_NVPAIR_H int nvpair_value_int16(nvpair_t , int16_t );
	+_SYS_NVPAIR_H int nvpair_value_uint16(nvpair_t , uint16_t );
	+_SYS_NVPAIR_H int nvpair_value_int32(nvpair_t , int32_t );
	+_SYS_NVPAIR_H int nvpair_value_uint32(nvpair_t , uint32_t );
	+_SYS_NVPAIR_H int nvpair_value_int64(nvpair_t , int64_t );
	+_SYS_NVPAIR_H int nvpair_value_uint64(nvpair_t , uint64_t );
	+_SYS_NVPAIR_H int nvpair_value_string(nvpair_t , char *);
	+_SYS_NVPAIR_H int nvpair_value_nvlist(nvpair_t , nvlist_t *);
	+_SYS_NVPAIR_H int nvpair_value_boolean_array(nvpair_t , boolean_t *,
	+ uint_t *);
	+_SYS_NVPAIR_H int nvpair_value_byte_array(nvpair_t , uchar_t , uint_t );
	+_SYS_NVPAIR_H int nvpair_value_int8_array(nvpair_t , int8_t , uint_t );
	+_SYS_NVPAIR_H int nvpair_value_uint8_array(nvpair_t , uint8_t , uint_t );
	+_SYS_NVPAIR_H int nvpair_value_int16_array(nvpair_t , int16_t , uint_t );
	+_SYS_NVPAIR_H int nvpair_value_uint16_array(nvpair_t , uint16_t , uint_t );
	+_SYS_NVPAIR_H int nvpair_value_int32_array(nvpair_t , int32_t , uint_t );
	+_SYS_NVPAIR_H int nvpair_value_uint32_array(nvpair_t , uint32_t , uint_t );
	+_SYS_NVPAIR_H int nvpair_value_int64_array(nvpair_t , int64_t , uint_t );
	+_SYS_NVPAIR_H int nvpair_value_uint64_array(nvpair_t , uint64_t , uint_t );
	+_SYS_NVPAIR_H int nvpair_value_string_array(nvpair_t , char *, uint_t );
	+_SYS_NVPAIR_H int nvpair_value_nvlist_array(nvpair_t , nvlist_t *, uint_t );
	+_SYS_NVPAIR_H int nvpair_value_hrtime(nvpair_t , hrtime_t );
	#if !defined(_KERNEL) && !defined(_STANDALONE)
	-int nvpair_value_double(nvpair_t , double );
	+_SYS_NVPAIR_H int nvpair_value_double(nvpair_t , double );
	#endif

	-nvlist_t *fnvlist_alloc(void);
	-void fnvlist_free(nvlist_t *);
	-size_t fnvlist_size(nvlist_t *);
	-char fnvlist_pack(nvlist_t , size_t *);
	-void fnvlist_pack_free(char *, size_t);
	-nvlist_t fnvlist_unpack(char , size_t);
	-nvlist_t fnvlist_dup(nvlist_t );
	-void fnvlist_merge(nvlist_t , nvlist_t );
	-size_t fnvlist_num_pairs(nvlist_t *);
	-
	-void fnvlist_add_boolean(nvlist_t , const char );
	-void fnvlist_add_boolean_value(nvlist_t , const char , boolean_t);
	-void fnvlist_add_byte(nvlist_t , const char , uchar_t);
	-void fnvlist_add_int8(nvlist_t , const char , int8_t);
	-void fnvlist_add_uint8(nvlist_t , const char , uint8_t);
	-void fnvlist_add_int16(nvlist_t , const char , int16_t);
	-void fnvlist_add_uint16(nvlist_t , const char , uint16_t);
	-void fnvlist_add_int32(nvlist_t , const char , int32_t);
	-void fnvlist_add_uint32(nvlist_t , const char , uint32_t);
	-void fnvlist_add_int64(nvlist_t , const char , int64_t);
	-void fnvlist_add_uint64(nvlist_t , const char , uint64_t);
	-void fnvlist_add_string(nvlist_t , const char , const char *);
	-void fnvlist_add_nvlist(nvlist_t , const char , nvlist_t *);
	-void fnvlist_add_nvpair(nvlist_t , nvpair_t );
	-void fnvlist_add_boolean_array(nvlist_t , const char , boolean_t *, uint_t);
	-void fnvlist_add_byte_array(nvlist_t , const char , uchar_t *, uint_t);
	-void fnvlist_add_int8_array(nvlist_t , const char , int8_t *, uint_t);
	-void fnvlist_add_uint8_array(nvlist_t , const char , uint8_t *, uint_t);
	-void fnvlist_add_int16_array(nvlist_t , const char , int16_t *, uint_t);
	-void fnvlist_add_uint16_array(nvlist_t , const char , uint16_t *, uint_t);
	-void fnvlist_add_int32_array(nvlist_t , const char , int32_t *, uint_t);
	-void fnvlist_add_uint32_array(nvlist_t , const char , uint32_t *, uint_t);
	-void fnvlist_add_int64_array(nvlist_t , const char , int64_t *, uint_t);
	-void fnvlist_add_uint64_array(nvlist_t , const char , uint64_t *, uint_t);
	-void fnvlist_add_string_array(nvlist_t , const char , char * const *, uint_t);
	-void fnvlist_add_nvlist_array(nvlist_t , const char , nvlist_t **, uint_t);
	-
	-void fnvlist_remove(nvlist_t , const char );
	-void fnvlist_remove_nvpair(nvlist_t , nvpair_t );
	-
	-nvpair_t fnvlist_lookup_nvpair(nvlist_t , const char *);
	-boolean_t fnvlist_lookup_boolean(nvlist_t , const char );
	-boolean_t fnvlist_lookup_boolean_value(nvlist_t , const char );
	-uchar_t fnvlist_lookup_byte(nvlist_t , const char );
	-int8_t fnvlist_lookup_int8(nvlist_t , const char );
	-int16_t fnvlist_lookup_int16(nvlist_t , const char );
	-int32_t fnvlist_lookup_int32(nvlist_t , const char );
	-int64_t fnvlist_lookup_int64(nvlist_t , const char );
	-uint8_t fnvlist_lookup_uint8(nvlist_t , const char );
	-uint16_t fnvlist_lookup_uint16(nvlist_t , const char );
	-uint32_t fnvlist_lookup_uint32(nvlist_t , const char );
	-uint64_t fnvlist_lookup_uint64(nvlist_t , const char );
	-char fnvlist_lookup_string(nvlist_t , const char *);
	-nvlist_t fnvlist_lookup_nvlist(nvlist_t , const char *);
	-boolean_t fnvlist_lookup_boolean_array(nvlist_t , const char , uint_t );
	-uchar_t fnvlist_lookup_byte_array(nvlist_t , const char , uint_t );
	-int8_t fnvlist_lookup_int8_array(nvlist_t , const char , uint_t );
	-uint8_t fnvlist_lookup_uint8_array(nvlist_t , const char , uint_t );
	-int16_t fnvlist_lookup_int16_array(nvlist_t , const char , uint_t );
	-uint16_t fnvlist_lookup_uint16_array(nvlist_t , const char , uint_t );
	-int32_t fnvlist_lookup_int32_array(nvlist_t , const char , uint_t );
	-uint32_t fnvlist_lookup_uint32_array(nvlist_t , const char , uint_t );
	-int64_t fnvlist_lookup_int64_array(nvlist_t , const char , uint_t );
	-uint64_t fnvlist_lookup_uint64_array(nvlist_t , const char , uint_t );
	-
	-boolean_t fnvpair_value_boolean_value(nvpair_t *nvp);
	-uchar_t fnvpair_value_byte(nvpair_t *nvp);
	-int8_t fnvpair_value_int8(nvpair_t *nvp);
	-int16_t fnvpair_value_int16(nvpair_t *nvp);
	-int32_t fnvpair_value_int32(nvpair_t *nvp);
	-int64_t fnvpair_value_int64(nvpair_t *nvp);
	-uint8_t fnvpair_value_uint8(nvpair_t *nvp);
	-uint16_t fnvpair_value_uint16(nvpair_t *nvp);
	-uint32_t fnvpair_value_uint32(nvpair_t *nvp);
	-uint64_t fnvpair_value_uint64(nvpair_t *nvp);
	-char fnvpair_value_string(nvpair_t nvp);
	-nvlist_t fnvpair_value_nvlist(nvpair_t nvp);
	+_SYS_NVPAIR_H nvlist_t *fnvlist_alloc(void);
	+_SYS_NVPAIR_H void fnvlist_free(nvlist_t *);
	+_SYS_NVPAIR_H size_t fnvlist_size(nvlist_t *);
	+_SYS_NVPAIR_H char fnvlist_pack(nvlist_t , size_t *);
	+_SYS_NVPAIR_H void fnvlist_pack_free(char *, size_t);
	+_SYS_NVPAIR_H nvlist_t fnvlist_unpack(char , size_t);
	+_SYS_NVPAIR_H nvlist_t fnvlist_dup(nvlist_t );
	+_SYS_NVPAIR_H void fnvlist_merge(nvlist_t , nvlist_t );
	+_SYS_NVPAIR_H size_t fnvlist_num_pairs(nvlist_t *);
	+
	+_SYS_NVPAIR_H void fnvlist_add_boolean(nvlist_t , const char );
	+_SYS_NVPAIR_H void fnvlist_add_boolean_value(nvlist_t , const char ,
	+ boolean_t);
	+_SYS_NVPAIR_H void fnvlist_add_byte(nvlist_t , const char , uchar_t);
	+_SYS_NVPAIR_H void fnvlist_add_int8(nvlist_t , const char , int8_t);
	+_SYS_NVPAIR_H void fnvlist_add_uint8(nvlist_t , const char , uint8_t);
	+_SYS_NVPAIR_H void fnvlist_add_int16(nvlist_t , const char , int16_t);
	+_SYS_NVPAIR_H void fnvlist_add_uint16(nvlist_t , const char , uint16_t);
	+_SYS_NVPAIR_H void fnvlist_add_int32(nvlist_t , const char , int32_t);
	+_SYS_NVPAIR_H void fnvlist_add_uint32(nvlist_t , const char , uint32_t);
	+_SYS_NVPAIR_H void fnvlist_add_int64(nvlist_t , const char , int64_t);
	+_SYS_NVPAIR_H void fnvlist_add_uint64(nvlist_t , const char , uint64_t);
	+_SYS_NVPAIR_H void fnvlist_add_string(nvlist_t , const char , const char *);
	+_SYS_NVPAIR_H void fnvlist_add_nvlist(nvlist_t , const char , nvlist_t *);
	+_SYS_NVPAIR_H void fnvlist_add_nvpair(nvlist_t , nvpair_t );
	+_SYS_NVPAIR_H void fnvlist_add_boolean_array(nvlist_t , const char ,
	+ boolean_t *, uint_t);
	+_SYS_NVPAIR_H void fnvlist_add_byte_array(nvlist_t , const char , uchar_t *,
	+ uint_t);
	+_SYS_NVPAIR_H void fnvlist_add_int8_array(nvlist_t , const char , int8_t *,
	+ uint_t);
	+_SYS_NVPAIR_H void fnvlist_add_uint8_array(nvlist_t , const char , uint8_t *,
	+ uint_t);
	+_SYS_NVPAIR_H void fnvlist_add_int16_array(nvlist_t , const char , int16_t *,
	+ uint_t);
	+_SYS_NVPAIR_H void fnvlist_add_uint16_array(nvlist_t , const char ,
	+ uint16_t *, uint_t);
	+_SYS_NVPAIR_H void fnvlist_add_int32_array(nvlist_t , const char , int32_t *,
	+ uint_t);
	+_SYS_NVPAIR_H void fnvlist_add_uint32_array(nvlist_t , const char ,
	+ uint32_t *, uint_t);
	+_SYS_NVPAIR_H void fnvlist_add_int64_array(nvlist_t , const char , int64_t *,
	+ uint_t);
	+_SYS_NVPAIR_H void fnvlist_add_uint64_array(nvlist_t , const char ,
	+ uint64_t *, uint_t);
	+_SYS_NVPAIR_H void fnvlist_add_string_array(nvlist_t , const char ,
	+ char * const *, uint_t);
	+_SYS_NVPAIR_H void fnvlist_add_nvlist_array(nvlist_t , const char ,
	+ nvlist_t **, uint_t);
	+
	+_SYS_NVPAIR_H void fnvlist_remove(nvlist_t , const char );
	+_SYS_NVPAIR_H void fnvlist_remove_nvpair(nvlist_t , nvpair_t );
	+
	+_SYS_NVPAIR_H nvpair_t fnvlist_lookup_nvpair(nvlist_t , const char *);
	+_SYS_NVPAIR_H boolean_t fnvlist_lookup_boolean(nvlist_t , const char );
	+_SYS_NVPAIR_H boolean_t fnvlist_lookup_boolean_value(nvlist_t , const char );
	+_SYS_NVPAIR_H uchar_t fnvlist_lookup_byte(nvlist_t , const char );
	+_SYS_NVPAIR_H int8_t fnvlist_lookup_int8(nvlist_t , const char );
	+_SYS_NVPAIR_H int16_t fnvlist_lookup_int16(nvlist_t , const char );
	+_SYS_NVPAIR_H int32_t fnvlist_lookup_int32(nvlist_t , const char );
	+_SYS_NVPAIR_H int64_t fnvlist_lookup_int64(nvlist_t , const char );
	+_SYS_NVPAIR_H uint8_t fnvlist_lookup_uint8(nvlist_t , const char );
	+_SYS_NVPAIR_H uint16_t fnvlist_lookup_uint16(nvlist_t , const char );
	+_SYS_NVPAIR_H uint32_t fnvlist_lookup_uint32(nvlist_t , const char );
	+_SYS_NVPAIR_H uint64_t fnvlist_lookup_uint64(nvlist_t , const char );
	+_SYS_NVPAIR_H char fnvlist_lookup_string(nvlist_t , const char *);
	+_SYS_NVPAIR_H nvlist_t fnvlist_lookup_nvlist(nvlist_t , const char *);
	+_SYS_NVPAIR_H boolean_t fnvlist_lookup_boolean_array(nvlist_t , const char *,
	+ uint_t *);
	+_SYS_NVPAIR_H uchar_t fnvlist_lookup_byte_array(nvlist_t , const char *,
	+ uint_t *);
	+_SYS_NVPAIR_H int8_t fnvlist_lookup_int8_array(nvlist_t , const char *,
	+ uint_t *);
	+_SYS_NVPAIR_H uint8_t fnvlist_lookup_uint8_array(nvlist_t , const char *,
	+ uint_t *);
	+_SYS_NVPAIR_H int16_t fnvlist_lookup_int16_array(nvlist_t , const char *,
	+ uint_t *);
	+_SYS_NVPAIR_H uint16_t fnvlist_lookup_uint16_array(nvlist_t , const char *,
	+ uint_t *);
	+_SYS_NVPAIR_H int32_t fnvlist_lookup_int32_array(nvlist_t , const char *,
	+ uint_t *);
	+_SYS_NVPAIR_H uint32_t fnvlist_lookup_uint32_array(nvlist_t , const char *,
	+ uint_t *);
	+_SYS_NVPAIR_H int64_t fnvlist_lookup_int64_array(nvlist_t , const char *,
	+ uint_t *);
	+_SYS_NVPAIR_H uint64_t fnvlist_lookup_uint64_array(nvlist_t , const char *,
	+ uint_t *);
	+
	+_SYS_NVPAIR_H boolean_t fnvpair_value_boolean_value(nvpair_t *nvp);
	+_SYS_NVPAIR_H uchar_t fnvpair_value_byte(nvpair_t *nvp);
	+_SYS_NVPAIR_H int8_t fnvpair_value_int8(nvpair_t *nvp);
	+_SYS_NVPAIR_H int16_t fnvpair_value_int16(nvpair_t *nvp);
	+_SYS_NVPAIR_H int32_t fnvpair_value_int32(nvpair_t *nvp);
	+_SYS_NVPAIR_H int64_t fnvpair_value_int64(nvpair_t *nvp);
	+_SYS_NVPAIR_H uint8_t fnvpair_value_uint8(nvpair_t *nvp);
	+_SYS_NVPAIR_H uint16_t fnvpair_value_uint16(nvpair_t *nvp);
	+_SYS_NVPAIR_H uint32_t fnvpair_value_uint32(nvpair_t *nvp);
	+_SYS_NVPAIR_H uint64_t fnvpair_value_uint64(nvpair_t *nvp);
	+_SYS_NVPAIR_H char fnvpair_value_string(nvpair_t nvp);
	+_SYS_NVPAIR_H nvlist_t fnvpair_value_nvlist(nvpair_t nvp);

	#ifdef __cplusplus
	}
	#endif

	#endif /* _SYS_NVPAIR_H */
	diff --git a/sys/contrib/openzfs/include/sys/spa.h b/sys/contrib/openzfs/include/sys/spa.h
	index 374d36e7327e..d37c6c923d8c 100644
	--- a/sys/contrib/openzfs/include/sys/spa.h
	+++ b/sys/contrib/openzfs/include/sys/spa.h
	@@ -1,1211 +1,1210 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2011, 2021 by Delphix. All rights reserved.
	* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
	* Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
	* Copyright 2013 Saso Kiselkov. All rights reserved.
	* Copyright (c) 2014 Integros [integros.com]
	* Copyright 2017 Joyent, Inc.
	* Copyright (c) 2017, 2019, Datto Inc. All rights reserved.
	* Copyright (c) 2017, Intel Corporation.
	* Copyright (c) 2019, Allan Jude
	* Copyright (c) 2019, Klara Inc.
	*/

	#ifndef _SYS_SPA_H
	#define _SYS_SPA_H

	#include <sys/avl.h>
	#include <sys/zfs_context.h>
	#include <sys/kstat.h>
	#include <sys/nvpair.h>
	#include <sys/sysmacros.h>
	#include <sys/types.h>
	#include <sys/fs/zfs.h>
	#include <sys/spa_checksum.h>
	#include <sys/dmu.h>
	#include <sys/space_map.h>
	#include <sys/bitops.h>

	#ifdef __cplusplus
	extern "C" {
	#endif

	/*
	* Forward references that lots of things need.
	*/
	typedef struct spa spa_t;
	typedef struct vdev vdev_t;
	typedef struct metaslab metaslab_t;
	typedef struct metaslab_group metaslab_group_t;
	typedef struct metaslab_class metaslab_class_t;
	typedef struct zio zio_t;
	typedef struct zilog zilog_t;
	typedef struct spa_aux_vdev spa_aux_vdev_t;
	typedef struct ddt ddt_t;
	typedef struct ddt_entry ddt_entry_t;
	typedef struct zbookmark_phys zbookmark_phys_t;

	struct bpobj;
	struct bplist;
	struct dsl_pool;
	struct dsl_dataset;
	struct dsl_crypto_params;

	/*
	* Alignment Shift (ashift) is an immutable, internal top-level vdev property
	* which can only be set at vdev creation time. Physical writes are always done
	* according to it, which makes 2^ashift the smallest possible IO on a vdev.
	*
	* We currently allow values ranging from 512 bytes (2^9 = 512) to 64 KiB
	* (2^16 = 65,536).
	*/
	#define ASHIFT_MIN 9
	#define ASHIFT_MAX 16

	/*
	* Size of block to hold the configuration data (a packed nvlist)
	*/
	#define SPA_CONFIG_BLOCKSIZE (1ULL << 14)

	/*
	* The DVA size encodings for LSIZE and PSIZE support blocks up to 32MB.
	* The ASIZE encoding should be at least 64 times larger (6 more bits)
	* to support up to 4-way RAID-Z mirror mode with worst-case gang block
	* overhead, three DVAs per bp, plus one more bit in case we do anything
	* else that expands the ASIZE.
	*/
	#define SPA_LSIZEBITS 16 /* LSIZE up to 32M (2^16 * 512) */
	#define SPA_PSIZEBITS 16 /* PSIZE up to 32M (2^16 * 512) */
	#define SPA_ASIZEBITS 24 /* ASIZE up to 64 times larger */

	#define SPA_COMPRESSBITS 7
	#define SPA_VDEVBITS 24
	#define SPA_COMPRESSMASK ((1U << SPA_COMPRESSBITS) - 1)

	/*
	* All SPA data is represented by 128-bit data virtual addresses (DVAs).
	* The members of the dva_t should be considered opaque outside the SPA.
	*/
	typedef struct dva {
	uint64_t dva_word[2];
	} dva_t;


	/*
	* Some checksums/hashes need a 256-bit initialization salt. This salt is kept
	* secret and is suitable for use in MAC algorithms as the key.
	*/
	typedef struct zio_cksum_salt {
	uint8_t zcs_bytes[32];
	} zio_cksum_salt_t;

	/*
	* Each block is described by its DVAs, time of birth, checksum, etc.
	* The word-by-word, bit-by-bit layout of the blkptr is as follows:
	*
	* 64 56 48 40 32 24 16 8 0
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 0 \| pad \| vdev1 \| GRID \| ASIZE \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 1 \|G\| offset1 \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 2 \| pad \| vdev2 \| GRID \| ASIZE \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 3 \|G\| offset2 \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 4 \| pad \| vdev3 \| GRID \| ASIZE \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 5 \|G\| offset3 \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 6 \|BDX\|lvl\| type \| cksum \|E\| comp\| PSIZE \| LSIZE \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 7 \| padding \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 8 \| padding \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 9 \| physical birth txg \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* a \| logical birth txg \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* b \| fill count \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* c \| checksum[0] \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* d \| checksum[1] \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* e \| checksum[2] \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* f \| checksum[3] \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	*
	* Legend:
	*
	* vdev virtual device ID
	* offset offset into virtual device
	* LSIZE logical size
	* PSIZE physical size (after compression)
	* ASIZE allocated size (including RAID-Z parity and gang block headers)
	* GRID RAID-Z layout information (reserved for future use)
	* cksum checksum function
	* comp compression function
	* G gang block indicator
	* B byteorder (endianness)
	* D dedup
	* X encryption
	* E blkptr_t contains embedded data (see below)
	* lvl level of indirection
	* type DMU object type
	* phys birth txg when dva[0] was written; zero if same as logical birth txg
	* note that typically all the dva's would be written in this
	* txg, but they could be different if they were moved by
	* device removal.
	* log. birth transaction group in which the block was logically born
	* fill count number of non-zero blocks under this bp
	* checksum[4] 256-bit checksum of the data this bp describes
	*/

	/*
	* The blkptr_t's of encrypted blocks also need to store the encryption
	* parameters so that the block can be decrypted. This layout is as follows:
	*
	* 64 56 48 40 32 24 16 8 0
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 0 \| vdev1 \| GRID \| ASIZE \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 1 \|G\| offset1 \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 2 \| vdev2 \| GRID \| ASIZE \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 3 \|G\| offset2 \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 4 \| salt \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 5 \| IV1 \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 6 \|BDX\|lvl\| type \| cksum \|E\| comp\| PSIZE \| LSIZE \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 7 \| padding \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 8 \| padding \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 9 \| physical birth txg \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* a \| logical birth txg \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* b \| IV2 \| fill count \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* c \| checksum[0] \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* d \| checksum[1] \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* e \| MAC[0] \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* f \| MAC[1] \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	*
	* Legend:
	*
	* salt Salt for generating encryption keys
	* IV1 First 64 bits of encryption IV
	* X Block requires encryption handling (set to 1)
	* E blkptr_t contains embedded data (set to 0, see below)
	* fill count number of non-zero blocks under this bp (truncated to 32 bits)
	* IV2 Last 32 bits of encryption IV
	* checksum[2] 128-bit checksum of the data this bp describes
	* MAC[2] 128-bit message authentication code for this data
	*
	* The X bit being set indicates that this block is one of 3 types. If this is
	* a level 0 block with an encrypted object type, the block is encrypted
	* (see BP_IS_ENCRYPTED()). If this is a level 0 block with an unencrypted
	* object type, this block is authenticated with an HMAC (see
	* BP_IS_AUTHENTICATED()). Otherwise (if level > 0), this bp will use the MAC
	* words to store a checksum-of-MACs from the level below (see
	* BP_HAS_INDIRECT_MAC_CKSUM()). For convenience in the code, BP_IS_PROTECTED()
	* refers to both encrypted and authenticated blocks and BP_USES_CRYPT()
	* refers to any of these 3 kinds of blocks.
	*
	* The additional encryption parameters are the salt, IV, and MAC which are
	* explained in greater detail in the block comment at the top of zio_crypt.c.
	* The MAC occupies half of the checksum space since it serves a very similar
	* purpose: to prevent data corruption on disk. The only functional difference
	* is that the checksum is used to detect on-disk corruption whether or not the
	* encryption key is loaded and the MAC provides additional protection against
	* malicious disk tampering. We use the 3rd DVA to store the salt and first
	* 64 bits of the IV. As a result encrypted blocks can only have 2 copies
	* maximum instead of the normal 3. The last 32 bits of the IV are stored in
	* the upper bits of what is usually the fill count. Note that only blocks at
	* level 0 or -2 are ever encrypted, which allows us to guarantee that these
	* 32 bits are not trampled over by other code (see zio_crypt.c for details).
	* The salt and IV are not used for authenticated bps or bps with an indirect
	* MAC checksum, so these blocks can utilize all 3 DVAs and the full 64 bits
	* for the fill count.
	*/

	/*
	* "Embedded" blkptr_t's don't actually point to a block, instead they
	* have a data payload embedded in the blkptr_t itself. See the comment
	* in blkptr.c for more details.
	*
	* The blkptr_t is laid out as follows:
	*
	* 64 56 48 40 32 24 16 8 0
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 0 \| payload \|
	* 1 \| payload \|
	* 2 \| payload \|
	* 3 \| payload \|
	* 4 \| payload \|
	* 5 \| payload \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 6 \|BDX\|lvl\| type \| etype \|E\| comp\| PSIZE\| LSIZE \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* 7 \| payload \|
	* 8 \| payload \|
	* 9 \| payload \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* a \| logical birth txg \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	* b \| payload \|
	* c \| payload \|
	* d \| payload \|
	* e \| payload \|
	* f \| payload \|
	* +-------+-------+-------+-------+-------+-------+-------+-------+
	*
	* Legend:
	*
	* payload contains the embedded data
	* B (byteorder) byteorder (endianness)
	* D (dedup) padding (set to zero)
	* X encryption (set to zero)
	* E (embedded) set to one
	* lvl indirection level
	* type DMU object type
	* etype how to interpret embedded data (BP_EMBEDDED_TYPE_*)
	* comp compression function of payload
	* PSIZE size of payload after compression, in bytes
	* LSIZE logical size of payload, in bytes
	* note that 25 bits is enough to store the largest
	* "normal" BP's LSIZE (2^16 * 2^9) in bytes
	* log. birth transaction group in which the block was logically born
	*
	* Note that LSIZE and PSIZE are stored in bytes, whereas for non-embedded
	* bp's they are stored in units of SPA_MINBLOCKSHIFT.
	* Generally, the generic BP_GET_*() macros can be used on embedded BP's.
	* The B, D, X, lvl, type, and comp fields are stored the same as with normal
	* BP's so the BP_SET_* macros can be used with them. etype, PSIZE, LSIZE must
	* be set with the BPE_SET_* macros. BP_SET_EMBEDDED() should be called before
	* other macros, as they assert that they are only used on BP's of the correct
	* "embedded-ness". Encrypted blkptr_t's cannot be embedded because they use
	* the payload space for encryption parameters (see the comment above on
	* how encryption parameters are stored).
	*/

	#define BPE_GET_ETYPE(bp) \
	(ASSERT(BP_IS_EMBEDDED(bp)), \
	BF64_GET((bp)->blk_prop, 40, 8))
	#define BPE_SET_ETYPE(bp, t) do { \
	ASSERT(BP_IS_EMBEDDED(bp)); \
	BF64_SET((bp)->blk_prop, 40, 8, t); \
	_NOTE(CONSTCOND) } while (0)

	#define BPE_GET_LSIZE(bp) \
	(ASSERT(BP_IS_EMBEDDED(bp)), \
	BF64_GET_SB((bp)->blk_prop, 0, 25, 0, 1))
	#define BPE_SET_LSIZE(bp, x) do { \
	ASSERT(BP_IS_EMBEDDED(bp)); \
	BF64_SET_SB((bp)->blk_prop, 0, 25, 0, 1, x); \
	_NOTE(CONSTCOND) } while (0)

	#define BPE_GET_PSIZE(bp) \
	(ASSERT(BP_IS_EMBEDDED(bp)), \
	BF64_GET_SB((bp)->blk_prop, 25, 7, 0, 1))
	#define BPE_SET_PSIZE(bp, x) do { \
	ASSERT(BP_IS_EMBEDDED(bp)); \
	BF64_SET_SB((bp)->blk_prop, 25, 7, 0, 1, x); \
	_NOTE(CONSTCOND) } while (0)

	typedef enum bp_embedded_type {
	BP_EMBEDDED_TYPE_DATA,
	BP_EMBEDDED_TYPE_RESERVED, /* Reserved for Delphix byteswap feature. */
	BP_EMBEDDED_TYPE_REDACTED,
	NUM_BP_EMBEDDED_TYPES
	} bp_embedded_type_t;

	#define BPE_NUM_WORDS 14
	#define BPE_PAYLOAD_SIZE (BPE_NUM_WORDS * sizeof (uint64_t))
	#define BPE_IS_PAYLOADWORD(bp, wp) \
	((wp) != &(bp)->blk_prop && (wp) != &(bp)->blk_birth)

	#define SPA_BLKPTRSHIFT 7 /* blkptr_t is 128 bytes */
	#define SPA_DVAS_PER_BP 3 /* Number of DVAs in a bp */
	#define SPA_SYNC_MIN_VDEVS 3 /* min vdevs to update during sync */

	/*
	* A block is a hole when it has either 1) never been written to, or
	* 2) is zero-filled. In both cases, ZFS can return all zeroes for all reads
	* without physically allocating disk space. Holes are represented in the
	* blkptr_t structure by zeroed blk_dva. Correct checking for holes is
	* done through the BP_IS_HOLE macro. For holes, the logical size, level,
	* DMU object type, and birth times are all also stored for holes that
	* were written to at some point (i.e. were punched after having been filled).
	*/
	typedef struct blkptr {
	dva_t blk_dva[SPA_DVAS_PER_BP]; /* Data Virtual Addresses */
	uint64_t blk_prop; /* size, compression, type, etc */
	uint64_t blk_pad[2]; /* Extra space for the future */
	uint64_t blk_phys_birth; /* txg when block was allocated */
	uint64_t blk_birth; /* transaction group at birth */
	uint64_t blk_fill; /* fill count */
	zio_cksum_t blk_cksum; /* 256-bit checksum */
	} blkptr_t;

	/*
	* Macros to get and set fields in a bp or DVA.
	*/

	/*
	* Note, for gang blocks, DVA_GET_ASIZE() is the total space allocated for
	* this gang DVA including its children BP's. The space allocated at this
	* DVA's vdev/offset is vdev_gang_header_asize(vdev).
	*/
	#define DVA_GET_ASIZE(dva) \
	BF64_GET_SB((dva)->dva_word[0], 0, SPA_ASIZEBITS, SPA_MINBLOCKSHIFT, 0)
	#define DVA_SET_ASIZE(dva, x) \
	BF64_SET_SB((dva)->dva_word[0], 0, SPA_ASIZEBITS, \
	SPA_MINBLOCKSHIFT, 0, x)

	#define DVA_GET_GRID(dva) BF64_GET((dva)->dva_word[0], 24, 8)
	#define DVA_SET_GRID(dva, x) BF64_SET((dva)->dva_word[0], 24, 8, x)

	#define DVA_GET_VDEV(dva) BF64_GET((dva)->dva_word[0], 32, SPA_VDEVBITS)
	#define DVA_SET_VDEV(dva, x) \
	BF64_SET((dva)->dva_word[0], 32, SPA_VDEVBITS, x)

	#define DVA_GET_OFFSET(dva) \
	BF64_GET_SB((dva)->dva_word[1], 0, 63, SPA_MINBLOCKSHIFT, 0)
	#define DVA_SET_OFFSET(dva, x) \
	BF64_SET_SB((dva)->dva_word[1], 0, 63, SPA_MINBLOCKSHIFT, 0, x)

	#define DVA_GET_GANG(dva) BF64_GET((dva)->dva_word[1], 63, 1)
	#define DVA_SET_GANG(dva, x) BF64_SET((dva)->dva_word[1], 63, 1, x)

	#define BP_GET_LSIZE(bp) \
	(BP_IS_EMBEDDED(bp) ? \
	(BPE_GET_ETYPE(bp) == BP_EMBEDDED_TYPE_DATA ? BPE_GET_LSIZE(bp) : 0): \
	BF64_GET_SB((bp)->blk_prop, 0, SPA_LSIZEBITS, SPA_MINBLOCKSHIFT, 1))
	#define BP_SET_LSIZE(bp, x) do { \
	ASSERT(!BP_IS_EMBEDDED(bp)); \
	BF64_SET_SB((bp)->blk_prop, \
	0, SPA_LSIZEBITS, SPA_MINBLOCKSHIFT, 1, x); \
	_NOTE(CONSTCOND) } while (0)

	#define BP_GET_PSIZE(bp) \
	(BP_IS_EMBEDDED(bp) ? 0 : \
	BF64_GET_SB((bp)->blk_prop, 16, SPA_PSIZEBITS, SPA_MINBLOCKSHIFT, 1))
	#define BP_SET_PSIZE(bp, x) do { \
	ASSERT(!BP_IS_EMBEDDED(bp)); \
	BF64_SET_SB((bp)->blk_prop, \
	16, SPA_PSIZEBITS, SPA_MINBLOCKSHIFT, 1, x); \
	_NOTE(CONSTCOND) } while (0)

	#define BP_GET_COMPRESS(bp) \
	BF64_GET((bp)->blk_prop, 32, SPA_COMPRESSBITS)
	#define BP_SET_COMPRESS(bp, x) \
	BF64_SET((bp)->blk_prop, 32, SPA_COMPRESSBITS, x)

	#define BP_IS_EMBEDDED(bp) BF64_GET((bp)->blk_prop, 39, 1)
	#define BP_SET_EMBEDDED(bp, x) BF64_SET((bp)->blk_prop, 39, 1, x)

	#define BP_GET_CHECKSUM(bp) \
	(BP_IS_EMBEDDED(bp) ? ZIO_CHECKSUM_OFF : \
	BF64_GET((bp)->blk_prop, 40, 8))
	#define BP_SET_CHECKSUM(bp, x) do { \
	ASSERT(!BP_IS_EMBEDDED(bp)); \
	BF64_SET((bp)->blk_prop, 40, 8, x); \
	_NOTE(CONSTCOND) } while (0)

	#define BP_GET_TYPE(bp) BF64_GET((bp)->blk_prop, 48, 8)
	#define BP_SET_TYPE(bp, x) BF64_SET((bp)->blk_prop, 48, 8, x)

	#define BP_GET_LEVEL(bp) BF64_GET((bp)->blk_prop, 56, 5)
	#define BP_SET_LEVEL(bp, x) BF64_SET((bp)->blk_prop, 56, 5, x)

	/* encrypted, authenticated, and MAC cksum bps use the same bit */
	#define BP_USES_CRYPT(bp) BF64_GET((bp)->blk_prop, 61, 1)
	#define BP_SET_CRYPT(bp, x) BF64_SET((bp)->blk_prop, 61, 1, x)

	#define BP_IS_ENCRYPTED(bp) \
	(BP_USES_CRYPT(bp) && \
	BP_GET_LEVEL(bp) <= 0 && \
	DMU_OT_IS_ENCRYPTED(BP_GET_TYPE(bp)))

	#define BP_IS_AUTHENTICATED(bp) \
	(BP_USES_CRYPT(bp) && \
	BP_GET_LEVEL(bp) <= 0 && \
	!DMU_OT_IS_ENCRYPTED(BP_GET_TYPE(bp)))

	#define BP_HAS_INDIRECT_MAC_CKSUM(bp) \
	(BP_USES_CRYPT(bp) && BP_GET_LEVEL(bp) > 0)

	#define BP_IS_PROTECTED(bp) \
	(BP_IS_ENCRYPTED(bp) \|\| BP_IS_AUTHENTICATED(bp))

	#define BP_GET_DEDUP(bp) BF64_GET((bp)->blk_prop, 62, 1)
	#define BP_SET_DEDUP(bp, x) BF64_SET((bp)->blk_prop, 62, 1, x)

	#define BP_GET_BYTEORDER(bp) BF64_GET((bp)->blk_prop, 63, 1)
	#define BP_SET_BYTEORDER(bp, x) BF64_SET((bp)->blk_prop, 63, 1, x)

	#define BP_GET_FREE(bp) BF64_GET((bp)->blk_fill, 0, 1)
	#define BP_SET_FREE(bp, x) BF64_SET((bp)->blk_fill, 0, 1, x)

	#define BP_PHYSICAL_BIRTH(bp) \
	(BP_IS_EMBEDDED(bp) ? 0 : \
	(bp)->blk_phys_birth ? (bp)->blk_phys_birth : (bp)->blk_birth)

	#define BP_SET_BIRTH(bp, logical, physical) \
	{ \
	ASSERT(!BP_IS_EMBEDDED(bp)); \
	(bp)->blk_birth = (logical); \
	(bp)->blk_phys_birth = ((logical) == (physical) ? 0 : (physical)); \
	}

	#define BP_GET_FILL(bp) \
	((BP_IS_ENCRYPTED(bp)) ? BF64_GET((bp)->blk_fill, 0, 32) : \
	((BP_IS_EMBEDDED(bp)) ? 1 : (bp)->blk_fill))

	#define BP_SET_FILL(bp, fill) \
	{ \
	if (BP_IS_ENCRYPTED(bp)) \
	BF64_SET((bp)->blk_fill, 0, 32, fill); \
	else \
	(bp)->blk_fill = fill; \
	}

	#define BP_GET_IV2(bp) \
	(ASSERT(BP_IS_ENCRYPTED(bp)), \
	BF64_GET((bp)->blk_fill, 32, 32))
	#define BP_SET_IV2(bp, iv2) \
	{ \
	ASSERT(BP_IS_ENCRYPTED(bp)); \
	BF64_SET((bp)->blk_fill, 32, 32, iv2); \
	}

	#define BP_IS_METADATA(bp) \
	(BP_GET_LEVEL(bp) > 0 \|\| DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))

	#define BP_GET_ASIZE(bp) \
	(BP_IS_EMBEDDED(bp) ? 0 : \
	DVA_GET_ASIZE(&(bp)->blk_dva[0]) + \
	DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \
	(DVA_GET_ASIZE(&(bp)->blk_dva[2]) * !BP_IS_ENCRYPTED(bp)))

	#define BP_GET_UCSIZE(bp) \
	(BP_IS_METADATA(bp) ? BP_GET_PSIZE(bp) : BP_GET_LSIZE(bp))

	#define BP_GET_NDVAS(bp) \
	(BP_IS_EMBEDDED(bp) ? 0 : \
	!!DVA_GET_ASIZE(&(bp)->blk_dva[0]) + \
	!!DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \
	(!!DVA_GET_ASIZE(&(bp)->blk_dva[2]) * !BP_IS_ENCRYPTED(bp)))

	#define BP_COUNT_GANG(bp) \
	(BP_IS_EMBEDDED(bp) ? 0 : \
	(DVA_GET_GANG(&(bp)->blk_dva[0]) + \
	DVA_GET_GANG(&(bp)->blk_dva[1]) + \
	(DVA_GET_GANG(&(bp)->blk_dva[2]) * !BP_IS_ENCRYPTED(bp))))

	#define DVA_EQUAL(dva1, dva2) \
	((dva1)->dva_word[1] == (dva2)->dva_word[1] && \
	(dva1)->dva_word[0] == (dva2)->dva_word[0])

	#define BP_EQUAL(bp1, bp2) \
	(BP_PHYSICAL_BIRTH(bp1) == BP_PHYSICAL_BIRTH(bp2) && \
	(bp1)->blk_birth == (bp2)->blk_birth && \
	DVA_EQUAL(&(bp1)->blk_dva[0], &(bp2)->blk_dva[0]) && \
	DVA_EQUAL(&(bp1)->blk_dva[1], &(bp2)->blk_dva[1]) && \
	DVA_EQUAL(&(bp1)->blk_dva[2], &(bp2)->blk_dva[2]))


	#define DVA_IS_VALID(dva) (DVA_GET_ASIZE(dva) != 0)

	#define BP_IDENTITY(bp) (ASSERT(!BP_IS_EMBEDDED(bp)), &(bp)->blk_dva[0])
	#define BP_IS_GANG(bp) \
	(BP_IS_EMBEDDED(bp) ? B_FALSE : DVA_GET_GANG(BP_IDENTITY(bp)))
	#define DVA_IS_EMPTY(dva) ((dva)->dva_word[0] == 0ULL && \
	(dva)->dva_word[1] == 0ULL)
	#define BP_IS_HOLE(bp) \
	(!BP_IS_EMBEDDED(bp) && DVA_IS_EMPTY(BP_IDENTITY(bp)))

	#define BP_SET_REDACTED(bp) \
	{ \
	BP_SET_EMBEDDED(bp, B_TRUE); \
	BPE_SET_ETYPE(bp, BP_EMBEDDED_TYPE_REDACTED); \
	}
	#define BP_IS_REDACTED(bp) \
	(BP_IS_EMBEDDED(bp) && BPE_GET_ETYPE(bp) == BP_EMBEDDED_TYPE_REDACTED)

	/* BP_IS_RAIDZ(bp) assumes no block compression */
	#define BP_IS_RAIDZ(bp) (DVA_GET_ASIZE(&(bp)->blk_dva[0]) > \
	BP_GET_PSIZE(bp))

	#define BP_ZERO(bp) \
	{ \
	(bp)->blk_dva[0].dva_word[0] = 0; \
	(bp)->blk_dva[0].dva_word[1] = 0; \
	(bp)->blk_dva[1].dva_word[0] = 0; \
	(bp)->blk_dva[1].dva_word[1] = 0; \
	(bp)->blk_dva[2].dva_word[0] = 0; \
	(bp)->blk_dva[2].dva_word[1] = 0; \
	(bp)->blk_prop = 0; \
	(bp)->blk_pad[0] = 0; \
	(bp)->blk_pad[1] = 0; \
	(bp)->blk_phys_birth = 0; \
	(bp)->blk_birth = 0; \
	(bp)->blk_fill = 0; \
	ZIO_SET_CHECKSUM(&(bp)->blk_cksum, 0, 0, 0, 0); \
	}

	#ifdef _ZFS_BIG_ENDIAN
	#define ZFS_HOST_BYTEORDER (0ULL)
	#else
	#define ZFS_HOST_BYTEORDER (1ULL)
	#endif

	#define BP_SHOULD_BYTESWAP(bp) (BP_GET_BYTEORDER(bp) != ZFS_HOST_BYTEORDER)

	#define BP_SPRINTF_LEN 400

	/*
	* This macro allows code sharing between zfs, libzpool, and mdb.
	* 'func' is either snprintf() or mdb_snprintf().
	* 'ws' (whitespace) can be ' ' for single-line format, '\n' for multi-line.
	*/

	#define SNPRINTF_BLKPTR(func, ws, buf, size, bp, type, checksum, compress) \
	{ \
	static const char *copyname[] = \
	{ "zero", "single", "double", "triple" }; \
	int len = 0; \
	int copies = 0; \
	const char *crypt_type; \
	if (bp != NULL) { \
	if (BP_IS_ENCRYPTED(bp)) { \
	crypt_type = "encrypted"; \
	/* LINTED E_SUSPICIOUS_COMPARISON */ \
	} else if (BP_IS_AUTHENTICATED(bp)) { \
	crypt_type = "authenticated"; \
	} else if (BP_HAS_INDIRECT_MAC_CKSUM(bp)) { \
	crypt_type = "indirect-MAC"; \
	} else { \
	crypt_type = "unencrypted"; \
	} \
	} \
	if (bp == NULL) { \
	len += func(buf + len, size - len, "<NULL>"); \
	} else if (BP_IS_HOLE(bp)) { \
	len += func(buf + len, size - len, \
	"HOLE [L%llu %s] " \
	"size=%llxL birth=%lluL", \
	(u_longlong_t)BP_GET_LEVEL(bp), \
	type, \
	(u_longlong_t)BP_GET_LSIZE(bp), \
	(u_longlong_t)bp->blk_birth); \
	} else if (BP_IS_EMBEDDED(bp)) { \
	len = func(buf + len, size - len, \
	"EMBEDDED [L%llu %s] et=%u %s " \
	"size=%llxL/%llxP birth=%lluL", \
	(u_longlong_t)BP_GET_LEVEL(bp), \
	type, \
	(int)BPE_GET_ETYPE(bp), \
	compress, \
	(u_longlong_t)BPE_GET_LSIZE(bp), \
	(u_longlong_t)BPE_GET_PSIZE(bp), \
	(u_longlong_t)bp->blk_birth); \
	} else if (BP_IS_REDACTED(bp)) { \
	len += func(buf + len, size - len, \
	"REDACTED [L%llu %s] size=%llxL birth=%lluL", \
	(u_longlong_t)BP_GET_LEVEL(bp), \
	type, \
	(u_longlong_t)BP_GET_LSIZE(bp), \
	(u_longlong_t)bp->blk_birth); \
	} else { \
	for (int d = 0; d < BP_GET_NDVAS(bp); d++) { \
	const dva_t *dva = &bp->blk_dva[d]; \
	if (DVA_IS_VALID(dva)) \
	copies++; \
	len += func(buf + len, size - len, \
	"DVA[%d]=<%llu:%llx:%llx>%c", d, \
	(u_longlong_t)DVA_GET_VDEV(dva), \
	(u_longlong_t)DVA_GET_OFFSET(dva), \
	(u_longlong_t)DVA_GET_ASIZE(dva), \
	ws); \
	} \
	if (BP_IS_ENCRYPTED(bp)) { \
	len += func(buf + len, size - len, \
	"salt=%llx iv=%llx:%llx%c", \
	(u_longlong_t)bp->blk_dva[2].dva_word[0], \
	(u_longlong_t)bp->blk_dva[2].dva_word[1], \
	(u_longlong_t)BP_GET_IV2(bp), \
	ws); \
	} \
	if (BP_IS_GANG(bp) && \
	DVA_GET_ASIZE(&bp->blk_dva[2]) <= \
	DVA_GET_ASIZE(&bp->blk_dva[1]) / 2) \
	copies--; \
	len += func(buf + len, size - len, \
	"[L%llu %s] %s %s %s %s %s %s %s%c" \
	"size=%llxL/%llxP birth=%lluL/%lluP fill=%llu%c" \
	"cksum=%llx:%llx:%llx:%llx", \
	(u_longlong_t)BP_GET_LEVEL(bp), \
	type, \
	checksum, \
	compress, \
	crypt_type, \
	BP_GET_BYTEORDER(bp) == 0 ? "BE" : "LE", \
	BP_IS_GANG(bp) ? "gang" : "contiguous", \
	BP_GET_DEDUP(bp) ? "dedup" : "unique", \
	copyname[copies], \
	ws, \
	(u_longlong_t)BP_GET_LSIZE(bp), \
	(u_longlong_t)BP_GET_PSIZE(bp), \
	(u_longlong_t)bp->blk_birth, \
	(u_longlong_t)BP_PHYSICAL_BIRTH(bp), \
	(u_longlong_t)BP_GET_FILL(bp), \
	ws, \
	(u_longlong_t)bp->blk_cksum.zc_word[0], \
	(u_longlong_t)bp->blk_cksum.zc_word[1], \
	(u_longlong_t)bp->blk_cksum.zc_word[2], \
	(u_longlong_t)bp->blk_cksum.zc_word[3]); \
	} \
	ASSERT(len < size); \
	}

	#define BP_GET_BUFC_TYPE(bp) \
	(BP_IS_METADATA(bp) ? ARC_BUFC_METADATA : ARC_BUFC_DATA)

	typedef enum spa_import_type {
	SPA_IMPORT_EXISTING,
	SPA_IMPORT_ASSEMBLE
	} spa_import_type_t;

	typedef enum spa_mode {
	SPA_MODE_UNINIT = 0,
	SPA_MODE_READ = 1,
	SPA_MODE_WRITE = 2,
	} spa_mode_t;

	/*
	* Send TRIM commands in-line during normal pool operation while deleting.
	* OFF: no
	* ON: yes
	* NB: IN_FREEBSD_BASE is defined within the FreeBSD sources.
	*/
	typedef enum {
	SPA_AUTOTRIM_OFF = 0, /* default */
	SPA_AUTOTRIM_ON,
	#ifdef IN_FREEBSD_BASE
	SPA_AUTOTRIM_DEFAULT = SPA_AUTOTRIM_ON,
	#else
	SPA_AUTOTRIM_DEFAULT = SPA_AUTOTRIM_OFF,
	#endif
	} spa_autotrim_t;

	/*
	* Reason TRIM command was issued, used internally for accounting purposes.
	*/
	typedef enum trim_type {
	TRIM_TYPE_MANUAL = 0,
	TRIM_TYPE_AUTO = 1,
	TRIM_TYPE_SIMPLE = 2
	} trim_type_t;

	/* state manipulation functions */
	extern int spa_open(const char pool, spa_t , void tag);
	extern int spa_open_rewind(const char pool, spa_t , void tag,
	nvlist_t policy, nvlist_t *config);
	extern int spa_get_stats(const char pool, nvlist_t config, char altroot,
	size_t buflen);
	extern int spa_create(const char pool, nvlist_t nvroot, nvlist_t *props,
	nvlist_t zplprops, struct dsl_crypto_params dcp);
	extern int spa_import(char pool, nvlist_t config, nvlist_t *props,
	uint64_t flags);
	extern nvlist_t spa_tryimport(nvlist_t tryconfig);
	extern int spa_destroy(const char *pool);
	extern int spa_checkpoint(const char *pool);
	extern int spa_checkpoint_discard(const char *pool);
	extern int spa_export(const char pool, nvlist_t *oldconfig, boolean_t force,
	boolean_t hardforce);
	extern int spa_reset(const char *pool);
	extern void spa_async_request(spa_t *spa, int flag);
	extern void spa_async_unrequest(spa_t *spa, int flag);
	extern void spa_async_suspend(spa_t *spa);
	extern void spa_async_resume(spa_t *spa);
	extern int spa_async_tasks(spa_t *spa);
	extern spa_t spa_inject_addref(char pool);
	extern void spa_inject_delref(spa_t *spa);
	extern void spa_scan_stat_init(spa_t *spa);
	extern int spa_scan_get_stats(spa_t spa, pool_scan_stat_t ps);
	extern int bpobj_enqueue_alloc_cb(void arg, const blkptr_t bp, dmu_tx_t *tx);
	extern int bpobj_enqueue_free_cb(void arg, const blkptr_t bp, dmu_tx_t *tx);

	#define SPA_ASYNC_CONFIG_UPDATE 0x01
	#define SPA_ASYNC_REMOVE 0x02
	#define SPA_ASYNC_PROBE 0x04
	#define SPA_ASYNC_RESILVER_DONE 0x08
	#define SPA_ASYNC_RESILVER 0x10
	#define SPA_ASYNC_AUTOEXPAND 0x20
	#define SPA_ASYNC_REMOVE_DONE 0x40
	#define SPA_ASYNC_REMOVE_STOP 0x80
	#define SPA_ASYNC_INITIALIZE_RESTART 0x100
	#define SPA_ASYNC_TRIM_RESTART 0x200
	#define SPA_ASYNC_AUTOTRIM_RESTART 0x400
	#define SPA_ASYNC_L2CACHE_REBUILD 0x800
	#define SPA_ASYNC_L2CACHE_TRIM 0x1000
	#define SPA_ASYNC_REBUILD_DONE 0x2000

	/* device manipulation */
	extern int spa_vdev_add(spa_t spa, nvlist_t nvroot);
	extern int spa_vdev_attach(spa_t spa, uint64_t guid, nvlist_t nvroot,
	int replacing, int rebuild);
	extern int spa_vdev_detach(spa_t *spa, uint64_t guid, uint64_t pguid,
	int replace_done);
	extern int spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare);
	extern boolean_t spa_vdev_remove_active(spa_t *spa);
	extern int spa_vdev_initialize(spa_t spa, nvlist_t nv, uint64_t cmd_type,
	nvlist_t *vdev_errlist);
	extern int spa_vdev_trim(spa_t spa, nvlist_t nv, uint64_t cmd_type,
	uint64_t rate, boolean_t partial, boolean_t secure, nvlist_t *vdev_errlist);
	extern int spa_vdev_setpath(spa_t spa, uint64_t guid, const char newpath);
	extern int spa_vdev_setfru(spa_t spa, uint64_t guid, const char newfru);
	extern int spa_vdev_split_mirror(spa_t spa, char newname, nvlist_t *config,
	nvlist_t *props, boolean_t exp);

	/* spare state (which is global across all pools) */
	extern void spa_spare_add(vdev_t *vd);
	extern void spa_spare_remove(vdev_t *vd);
	extern boolean_t spa_spare_exists(uint64_t guid, uint64_t pool, int refcnt);
	extern void spa_spare_activate(vdev_t *vd);

	/* L2ARC state (which is global across all pools) */
	extern void spa_l2cache_add(vdev_t *vd);
	extern void spa_l2cache_remove(vdev_t *vd);
	extern boolean_t spa_l2cache_exists(uint64_t guid, uint64_t *pool);
	extern void spa_l2cache_activate(vdev_t *vd);
	extern void spa_l2cache_drop(spa_t *spa);

	/* scanning */
	extern int spa_scan(spa_t *spa, pool_scan_func_t func);
	extern int spa_scan_stop(spa_t *spa);
	extern int spa_scrub_pause_resume(spa_t *spa, pool_scrub_cmd_t flag);

	/* spa syncing */
	extern void spa_sync(spa_t spa, uint64_t txg); / only for DMU use */
	extern void spa_sync_allpools(void);

	extern int zfs_sync_pass_deferred_free;

	/* spa namespace global mutex */
	extern kmutex_t spa_namespace_lock;

	/*
	* SPA configuration functions in spa_config.c
	*/

	#define SPA_CONFIG_UPDATE_POOL 0
	#define SPA_CONFIG_UPDATE_VDEVS 1

	extern void spa_write_cachefile(spa_t *, boolean_t, boolean_t);
	extern void spa_config_load(void);
	extern nvlist_t spa_all_configs(uint64_t );
	extern void spa_config_set(spa_t spa, nvlist_t config);
	extern nvlist_t spa_config_generate(spa_t spa, vdev_t *vd, uint64_t txg,
	int getstats);
	extern void spa_config_update(spa_t *spa, int what);
	extern int spa_config_parse(spa_t spa, vdev_t vdp, nvlist_t nv,
	vdev_t *parent, uint_t id, int atype);


	/*
	* Miscellaneous SPA routines in spa_misc.c
	*/

	/* Namespace manipulation */
	extern spa_t spa_lookup(const char name);
	extern spa_t spa_add(const char name, nvlist_t config, const char altroot);
	extern void spa_remove(spa_t *spa);
	extern spa_t spa_next(spa_t prev);

	/* Refcount functions */
	extern void spa_open_ref(spa_t spa, void tag);
	extern void spa_close(spa_t spa, void tag);
	extern void spa_async_close(spa_t spa, void tag);
	extern boolean_t spa_refcount_zero(spa_t *spa);

	#define SCL_NONE 0x00
	#define SCL_CONFIG 0x01
	#define SCL_STATE 0x02
	#define SCL_L2ARC 0x04 /* hack until L2ARC 2.0 */
	#define SCL_ALLOC 0x08
	#define SCL_ZIO 0x10
	#define SCL_FREE 0x20
	#define SCL_VDEV 0x40
	#define SCL_LOCKS 7
	#define SCL_ALL ((1 << SCL_LOCKS) - 1)
	#define SCL_STATE_ALL (SCL_STATE \| SCL_L2ARC \| SCL_ZIO)

	/* Historical pool statistics */
	typedef struct spa_history_kstat {
	kmutex_t lock;
	uint64_t count;
	uint64_t size;
	kstat_t *kstat;
	void *priv;
	list_t list;
	} spa_history_kstat_t;

	typedef struct spa_history_list {
	uint64_t size;
	procfs_list_t procfs_list;
	} spa_history_list_t;

	typedef struct spa_stats {
	spa_history_list_t read_history;
	spa_history_list_t txg_history;
	spa_history_kstat_t tx_assign_histogram;
	- spa_history_kstat_t io_history;
	spa_history_list_t mmp_history;
	spa_history_kstat_t state; /* pool state */
	spa_history_kstat_t iostats;
	} spa_stats_t;

	typedef enum txg_state {
	TXG_STATE_BIRTH = 0,
	TXG_STATE_OPEN = 1,
	TXG_STATE_QUIESCED = 2,
	TXG_STATE_WAIT_FOR_SYNC = 3,
	TXG_STATE_SYNCED = 4,
	TXG_STATE_COMMITTED = 5,
	} txg_state_t;

	typedef struct txg_stat {
	vdev_stat_t vs1;
	vdev_stat_t vs2;
	uint64_t txg;
	uint64_t ndirty;
	} txg_stat_t;

	/* Assorted pool IO kstats */
	typedef struct spa_iostats {
	kstat_named_t trim_extents_written;
	kstat_named_t trim_bytes_written;
	kstat_named_t trim_extents_skipped;
	kstat_named_t trim_bytes_skipped;
	kstat_named_t trim_extents_failed;
	kstat_named_t trim_bytes_failed;
	kstat_named_t autotrim_extents_written;
	kstat_named_t autotrim_bytes_written;
	kstat_named_t autotrim_extents_skipped;
	kstat_named_t autotrim_bytes_skipped;
	kstat_named_t autotrim_extents_failed;
	kstat_named_t autotrim_bytes_failed;
	kstat_named_t simple_trim_extents_written;
	kstat_named_t simple_trim_bytes_written;
	kstat_named_t simple_trim_extents_skipped;
	kstat_named_t simple_trim_bytes_skipped;
	kstat_named_t simple_trim_extents_failed;
	kstat_named_t simple_trim_bytes_failed;
	} spa_iostats_t;

	extern void spa_stats_init(spa_t *spa);
	extern void spa_stats_destroy(spa_t *spa);
	extern void spa_read_history_add(spa_t spa, const zbookmark_phys_t zb,
	uint32_t aflags);
	extern void spa_txg_history_add(spa_t *spa, uint64_t txg, hrtime_t birth_time);
	extern int spa_txg_history_set(spa_t *spa, uint64_t txg,
	txg_state_t completed_state, hrtime_t completed_time);
	extern txg_stat_t spa_txg_history_init_io(spa_t , uint64_t,
	struct dsl_pool *);
	extern void spa_txg_history_fini_io(spa_t , txg_stat_t );
	extern void spa_tx_assign_add_nsecs(spa_t *spa, uint64_t nsecs);
	extern int spa_mmp_history_set_skip(spa_t *spa, uint64_t mmp_kstat_id);
	extern int spa_mmp_history_set(spa_t *spa, uint64_t mmp_kstat_id, int io_error,
	hrtime_t duration);
	extern void spa_mmp_history_add(spa_t *spa, uint64_t txg, uint64_t timestamp,
	uint64_t mmp_delay, vdev_t *vd, int label, uint64_t mmp_kstat_id,
	int error);
	extern void spa_iostats_trim_add(spa_t *spa, trim_type_t type,
	uint64_t extents_written, uint64_t bytes_written,
	uint64_t extents_skipped, uint64_t bytes_skipped,
	uint64_t extents_failed, uint64_t bytes_failed);
	extern void spa_import_progress_add(spa_t *spa);
	extern void spa_import_progress_remove(uint64_t spa_guid);
	extern int spa_import_progress_set_mmp_check(uint64_t pool_guid,
	uint64_t mmp_sec_remaining);
	extern int spa_import_progress_set_max_txg(uint64_t pool_guid,
	uint64_t max_txg);
	extern int spa_import_progress_set_state(uint64_t pool_guid,
	spa_load_state_t spa_load_state);

	/* Pool configuration locks */
	extern int spa_config_tryenter(spa_t spa, int locks, void tag, krw_t rw);
	extern void spa_config_enter(spa_t spa, int locks, const void tag, krw_t rw);
	extern void spa_config_exit(spa_t spa, int locks, const void tag);
	extern int spa_config_held(spa_t *spa, int locks, krw_t rw);

	/* Pool vdev add/remove lock */
	extern uint64_t spa_vdev_enter(spa_t *spa);
	extern uint64_t spa_vdev_detach_enter(spa_t *spa, uint64_t guid);
	extern uint64_t spa_vdev_config_enter(spa_t *spa);
	extern void spa_vdev_config_exit(spa_t spa, vdev_t vd, uint64_t txg,
	int error, char *tag);
	extern int spa_vdev_exit(spa_t spa, vdev_t vd, uint64_t txg, int error);

	/* Pool vdev state change lock */
	extern void spa_vdev_state_enter(spa_t *spa, int oplock);
	extern int spa_vdev_state_exit(spa_t spa, vdev_t vd, int error);

	/* Log state */
	typedef enum spa_log_state {
	SPA_LOG_UNKNOWN = 0, /* unknown log state */
	SPA_LOG_MISSING, /* missing log(s) */
	SPA_LOG_CLEAR, /* clear the log(s) */
	SPA_LOG_GOOD, /* log(s) are good */
	} spa_log_state_t;

	extern spa_log_state_t spa_get_log_state(spa_t *spa);
	extern void spa_set_log_state(spa_t *spa, spa_log_state_t state);
	extern int spa_reset_logs(spa_t *spa);

	/* Log claim callback */
	extern void spa_claim_notify(zio_t *zio);
	extern void spa_deadman(void *);

	/* Accessor functions */
	extern boolean_t spa_shutting_down(spa_t *spa);
	extern struct dsl_pool spa_get_dsl(spa_t spa);
	extern boolean_t spa_is_initializing(spa_t *spa);
	extern boolean_t spa_indirect_vdevs_loaded(spa_t *spa);
	extern blkptr_t spa_get_rootblkptr(spa_t spa);
	extern void spa_set_rootblkptr(spa_t spa, const blkptr_t bp);
	extern void spa_altroot(spa_t , char , size_t);
	extern int spa_sync_pass(spa_t *spa);
	extern char spa_name(spa_t spa);
	extern uint64_t spa_guid(spa_t *spa);
	extern uint64_t spa_load_guid(spa_t *spa);
	extern uint64_t spa_last_synced_txg(spa_t *spa);
	extern uint64_t spa_first_txg(spa_t *spa);
	extern uint64_t spa_syncing_txg(spa_t *spa);
	extern uint64_t spa_final_dirty_txg(spa_t *spa);
	extern uint64_t spa_version(spa_t *spa);
	extern pool_state_t spa_state(spa_t *spa);
	extern spa_load_state_t spa_load_state(spa_t *spa);
	extern uint64_t spa_freeze_txg(spa_t *spa);
	extern uint64_t spa_get_worst_case_asize(spa_t *spa, uint64_t lsize);
	extern uint64_t spa_get_dspace(spa_t *spa);
	extern uint64_t spa_get_checkpoint_space(spa_t *spa);
	extern uint64_t spa_get_slop_space(spa_t *spa);
	extern void spa_update_dspace(spa_t *spa);
	extern uint64_t spa_version(spa_t *spa);
	extern boolean_t spa_deflate(spa_t *spa);
	extern metaslab_class_t spa_normal_class(spa_t spa);
	extern metaslab_class_t spa_log_class(spa_t spa);
	extern metaslab_class_t spa_embedded_log_class(spa_t spa);
	extern metaslab_class_t spa_special_class(spa_t spa);
	extern metaslab_class_t spa_dedup_class(spa_t spa);
	extern metaslab_class_t spa_preferred_class(spa_t spa, uint64_t size,
	dmu_object_type_t objtype, uint_t level, uint_t special_smallblk);

	extern void spa_evicting_os_register(spa_t , objset_t os);
	extern void spa_evicting_os_deregister(spa_t , objset_t os);
	extern void spa_evicting_os_wait(spa_t *spa);
	extern int spa_max_replication(spa_t *spa);
	extern int spa_prev_software_version(spa_t *spa);
	extern uint64_t spa_get_failmode(spa_t *spa);
	extern uint64_t spa_get_deadman_failmode(spa_t *spa);
	extern void spa_set_deadman_failmode(spa_t spa, const char failmode);
	extern boolean_t spa_suspended(spa_t *spa);
	extern uint64_t spa_bootfs(spa_t *spa);
	extern uint64_t spa_delegation(spa_t *spa);
	extern objset_t spa_meta_objset(spa_t spa);
	extern space_map_t spa_syncing_log_sm(spa_t spa);
	extern uint64_t spa_deadman_synctime(spa_t *spa);
	extern uint64_t spa_deadman_ziotime(spa_t *spa);
	extern uint64_t spa_dirty_data(spa_t *spa);
	extern spa_autotrim_t spa_get_autotrim(spa_t *spa);

	/* Miscellaneous support routines */
	extern void spa_load_failed(spa_t spa, const char fmt, ...);
	extern void spa_load_note(spa_t spa, const char fmt, ...);
	extern void spa_activate_mos_feature(spa_t spa, const char feature,
	dmu_tx_t *tx);
	extern void spa_deactivate_mos_feature(spa_t spa, const char feature);
	extern spa_t *spa_by_guid(uint64_t pool_guid, uint64_t device_guid);
	extern boolean_t spa_guid_exists(uint64_t pool_guid, uint64_t device_guid);
	extern char spa_strdup(const char );
	extern void spa_strfree(char *);
	extern uint64_t spa_get_random(uint64_t range);
	extern uint64_t spa_generate_guid(spa_t *spa);
	extern void snprintf_blkptr(char buf, size_t buflen, const blkptr_t bp);
	extern void spa_freeze(spa_t *spa);
	extern int spa_change_guid(spa_t *spa);
	extern void spa_upgrade(spa_t *spa, uint64_t version);
	extern void spa_evict_all(void);
	extern vdev_t spa_lookup_by_guid(spa_t spa, uint64_t guid,
	boolean_t l2cache);
	extern boolean_t spa_has_spare(spa_t *, uint64_t guid);
	extern uint64_t dva_get_dsize_sync(spa_t spa, const dva_t dva);
	extern uint64_t bp_get_dsize_sync(spa_t spa, const blkptr_t bp);
	extern uint64_t bp_get_dsize(spa_t spa, const blkptr_t bp);
	extern boolean_t spa_has_slogs(spa_t *spa);
	extern boolean_t spa_is_root(spa_t *spa);
	extern boolean_t spa_writeable(spa_t *spa);
	extern boolean_t spa_has_pending_synctask(spa_t *spa);
	extern int spa_maxblocksize(spa_t *spa);
	extern int spa_maxdnodesize(spa_t *spa);
	extern boolean_t spa_has_checkpoint(spa_t *spa);
	extern boolean_t spa_importing_readonly_checkpoint(spa_t *spa);
	extern boolean_t spa_suspend_async_destroy(spa_t *spa);
	extern uint64_t spa_min_claim_txg(spa_t *spa);
	extern boolean_t zfs_dva_valid(spa_t spa, const dva_t dva,
	const blkptr_t *bp);
	typedef void (*spa_remap_cb_t)(uint64_t vdev, uint64_t offset, uint64_t size,
	void *arg);
	extern boolean_t spa_remap_blkptr(spa_t spa, blkptr_t bp,
	spa_remap_cb_t callback, void *arg);
	extern uint64_t spa_get_last_removal_txg(spa_t *spa);
	extern boolean_t spa_trust_config(spa_t *spa);
	extern uint64_t spa_missing_tvds_allowed(spa_t *spa);
	extern void spa_set_missing_tvds(spa_t *spa, uint64_t missing);
	extern boolean_t spa_top_vdevs_spacemap_addressable(spa_t *spa);
	extern uint64_t spa_total_metaslabs(spa_t *spa);
	extern boolean_t spa_multihost(spa_t *spa);
	extern uint32_t spa_get_hostid(spa_t *spa);
	extern void spa_activate_allocation_classes(spa_t , dmu_tx_t );
	extern boolean_t spa_livelist_delete_check(spa_t *spa);

	extern spa_mode_t spa_mode(spa_t *spa);
	extern uint64_t zfs_strtonum(const char str, char *nptr);

	extern char *spa_his_ievent_table[];

	extern void spa_history_create_obj(spa_t spa, dmu_tx_t tx);
	extern int spa_history_get(spa_t spa, uint64_t offset, uint64_t *len_read,
	char *his_buf);
	extern int spa_history_log(spa_t spa, const char his_buf);
	extern int spa_history_log_nvl(spa_t spa, nvlist_t nvl);
	extern void spa_history_log_version(spa_t spa, const char operation,
	dmu_tx_t *tx);
	extern void spa_history_log_internal(spa_t spa, const char operation,
	dmu_tx_t tx, const char fmt, ...) __printflike(4, 5);
	extern void spa_history_log_internal_ds(struct dsl_dataset ds, const char op,
	dmu_tx_t tx, const char fmt, ...) __printflike(4, 5);
	extern void spa_history_log_internal_dd(dsl_dir_t dd, const char operation,
	dmu_tx_t tx, const char fmt, ...) __printflike(4, 5);

	extern const char spa_state_to_name(spa_t spa);

	/* error handling */
	struct zbookmark_phys;
	extern void spa_log_error(spa_t spa, const zbookmark_phys_t zb);
	extern int zfs_ereport_post(const char clazz, spa_t spa, vdev_t *vd,
	const zbookmark_phys_t zb, zio_t zio, uint64_t state);
	extern boolean_t zfs_ereport_is_valid(const char clazz, spa_t spa, vdev_t *vd,
	zio_t *zio);
	extern void zfs_ereport_taskq_fini(void);
	extern void zfs_ereport_clear(spa_t spa, vdev_t vd);
	extern nvlist_t zfs_event_create(spa_t spa, vdev_t vd, const char type,
	const char name, nvlist_t aux);
	extern void zfs_post_remove(spa_t spa, vdev_t vd);
	extern void zfs_post_state_change(spa_t spa, vdev_t vd, uint64_t laststate);
	extern void zfs_post_autoreplace(spa_t spa, vdev_t vd);
	extern uint64_t spa_get_errlog_size(spa_t *spa);
	extern int spa_get_errlog(spa_t spa, void uaddr, size_t *count);
	extern void spa_errlog_rotate(spa_t *spa);
	extern void spa_errlog_drain(spa_t *spa);
	extern void spa_errlog_sync(spa_t *spa, uint64_t txg);
	extern void spa_get_errlists(spa_t spa, avl_tree_t last, avl_tree_t *scrub);

	/* vdev cache */
	extern void vdev_cache_stat_init(void);
	extern void vdev_cache_stat_fini(void);

	/* vdev mirror */
	extern void vdev_mirror_stat_init(void);
	extern void vdev_mirror_stat_fini(void);

	/* Initialization and termination */
	extern void spa_init(spa_mode_t mode);
	extern void spa_fini(void);
	extern void spa_boot_init(void);

	/* properties */
	extern int spa_prop_set(spa_t spa, nvlist_t nvp);
	extern int spa_prop_get(spa_t spa, nvlist_t *nvp);
	extern void spa_prop_clear_bootfs(spa_t spa, uint64_t obj, dmu_tx_t tx);
	extern void spa_configfile_set(spa_t , nvlist_t , boolean_t);

	/* asynchronous event notification */
	extern void spa_event_notify(spa_t spa, vdev_t vdev, nvlist_t *hist_nvl,
	const char *name);

	/* waiting for pool activities to complete */
	extern int spa_wait(const char *pool, zpool_wait_activity_t activity,
	boolean_t *waited);
	extern int spa_wait_tag(const char *name, zpool_wait_activity_t activity,
	uint64_t tag, boolean_t *waited);
	extern void spa_notify_waiters(spa_t *spa);
	extern void spa_wake_waiters(spa_t *spa);

	/* module param call functions */
	int param_set_deadman_ziotime(ZFS_MODULE_PARAM_ARGS);
	int param_set_deadman_synctime(ZFS_MODULE_PARAM_ARGS);
	int param_set_slop_shift(ZFS_MODULE_PARAM_ARGS);
	int param_set_deadman_failmode(ZFS_MODULE_PARAM_ARGS);

	#ifdef ZFS_DEBUG
	#define dprintf_bp(bp, fmt, ...) do { \
	if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
	char *__blkbuf = kmem_alloc(BP_SPRINTF_LEN, KM_SLEEP); \
	snprintf_blkptr(__blkbuf, BP_SPRINTF_LEN, (bp)); \
	dprintf(fmt " %s\n", __VA_ARGS__, __blkbuf); \
	kmem_free(__blkbuf, BP_SPRINTF_LEN); \
	} \
	_NOTE(CONSTCOND) } while (0)
	#else
	#define dprintf_bp(bp, fmt, ...)
	#endif

	extern spa_mode_t spa_mode_global;
	extern int zfs_deadman_enabled;
	extern unsigned long zfs_deadman_synctime_ms;
	extern unsigned long zfs_deadman_ziotime_ms;
	extern unsigned long zfs_deadman_checktime_ms;

	#ifdef __cplusplus
	}
	#endif

	#endif /* _SYS_SPA_H */
	diff --git a/sys/contrib/openzfs/include/sys/zfs_context.h b/sys/contrib/openzfs/include/sys/zfs_context.h
	index 89afa98253f7..aa4338ed2859 100644
	--- a/sys/contrib/openzfs/include/sys/zfs_context.h
	+++ b/sys/contrib/openzfs/include/sys/zfs_context.h
	@@ -1,776 +1,770 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
	* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	* Copyright (c) 2012, Joyent, Inc. All rights reserved.
	*/

	#ifndef _SYS_ZFS_CONTEXT_H
	#define _SYS_ZFS_CONTEXT_H

	#ifdef __cplusplus
	extern "C" {
	#endif

	/*
	* This code compiles in three different contexts. When __KERNEL__ is defined,
	* the code uses "unix-like" kernel interfaces. When _STANDALONE is defined, the
	* code is running in a reduced capacity environment of the boot loader which is
	* generally a subset of both POSIX and kernel interfaces (with a few unique
	* interfaces too). When neither are defined, it's in a userland POSIX or
	* similar environment.
	*/
	#if defined(__KERNEL__) \|\| defined(_STANDALONE)
	#include <sys/note.h>
	#include <sys/types.h>
	#include <sys/atomic.h>
	#include <sys/sysmacros.h>
	#include <sys/vmsystm.h>
	#include <sys/condvar.h>
	#include <sys/cmn_err.h>
	#include <sys/kmem.h>
	#include <sys/kmem_cache.h>
	#include <sys/vmem.h>
	#include <sys/taskq.h>
	#include <sys/param.h>
	#include <sys/disp.h>
	#include <sys/debug.h>
	#include <sys/random.h>
	#include <sys/strings.h>
	#include <sys/byteorder.h>
	#include <sys/list.h>
	#include <sys/time.h>
	#include <sys/zone.h>
	#include <sys/kstat.h>
	#include <sys/zfs_debug.h>
	#include <sys/sysevent.h>
	#include <sys/sysevent/eventdefs.h>
	#include <sys/zfs_delay.h>
	#include <sys/sunddi.h>
	#include <sys/ctype.h>
	#include <sys/disp.h>
	#include <sys/trace.h>
	#include <sys/procfs_list.h>
	#include <sys/mod.h>
	#include <sys/uio_impl.h>
	#include <sys/zfs_context_os.h>
	#else /* _KERNEL \|\| _STANDALONE */

	#define _SYS_MUTEX_H
	#define _SYS_RWLOCK_H
	#define _SYS_CONDVAR_H
	#define _SYS_VNODE_H
	#define _SYS_VFS_H
	#define _SYS_SUNDDI_H
	#define _SYS_CALLB_H

	#include <stdio.h>
	#include <stdlib.h>
	#include <stddef.h>
	#include <stdarg.h>
	#include <fcntl.h>
	#include <unistd.h>
	#include <errno.h>
	#include <string.h>
	#include <strings.h>
	#include <pthread.h>
	#include <setjmp.h>
	#include <assert.h>
	#include <umem.h>
	#include <limits.h>
	#include <atomic.h>
	#include <dirent.h>
	#include <time.h>
	#include <ctype.h>
	#include <signal.h>
	#include <sys/mman.h>
	#include <sys/note.h>
	#include <sys/types.h>
	#include <sys/cred.h>
	#include <sys/sysmacros.h>
	#include <sys/resource.h>
	#include <sys/byteorder.h>
	#include <sys/list.h>
	#include <sys/mod.h>
	#include <sys/uio.h>
	#include <sys/zfs_debug.h>
	#include <sys/kstat.h>
	#include <sys/u8_textprep.h>
	#include <sys/sysevent.h>
	#include <sys/sysevent/eventdefs.h>
	#include <sys/sunddi.h>
	#include <sys/debug.h>
	#include <sys/utsname.h>
	#include <sys/trace_zfs.h>

	#include <sys/zfs_context_os.h>

	/*
	* Stack
	*/

	#define noinline __attribute__((noinline))
	#define likely(x) __builtin_expect((x), 1)
	#define unlikely(x) __builtin_expect((x), 0)

	/*
	* Debugging
	*/

	/*
	* Note that we are not using the debugging levels.
	*/

	#define CE_CONT 0 /* continuation */
	#define CE_NOTE 1 /* notice */
	#define CE_WARN 2 /* warning */
	#define CE_PANIC 3 /* panic */
	#define CE_IGNORE 4 /* print nothing */

	/*
	* ZFS debugging
	*/

	extern void dprintf_setup(int argc, char *argv);

	extern void cmn_err(int, const char *, ...);
	extern void vcmn_err(int, const char *, va_list);
	extern void panic(const char *, ...) __NORETURN;
	extern void vpanic(const char *, va_list) __NORETURN;

	#define fm_panic panic

	/*
	* DTrace SDT probes have different signatures in userland than they do in
	* the kernel. If they're being used in kernel code, re-define them out of
	* existence for their counterparts in libzpool.
	*
	* Here's an example of how to use the set-error probes in userland:
	* zfs$target:::set-error /arg0 == EBUSY/ {stack();}
	*
	* Here's an example of how to use DTRACE_PROBE probes in userland:
	* If there is a probe declared as follows:
	* DTRACE_PROBE2(zfs__probe_name, uint64_t, blkid, dnode_t *, dn);
	* Then you can use it as follows:
	* zfs$target:::probe2 /copyinstr(arg0) == "zfs__probe_name"/
	* {printf("%u %p\n", arg1, arg2);}
	*/

	#ifdef DTRACE_PROBE
	#undef DTRACE_PROBE
	#endif /* DTRACE_PROBE */
	#define DTRACE_PROBE(a)

	#ifdef DTRACE_PROBE1
	#undef DTRACE_PROBE1
	#endif /* DTRACE_PROBE1 */
	#define DTRACE_PROBE1(a, b, c)

	#ifdef DTRACE_PROBE2
	#undef DTRACE_PROBE2
	#endif /* DTRACE_PROBE2 */
	#define DTRACE_PROBE2(a, b, c, d, e)

	#ifdef DTRACE_PROBE3
	#undef DTRACE_PROBE3
	#endif /* DTRACE_PROBE3 */
	#define DTRACE_PROBE3(a, b, c, d, e, f, g)

	#ifdef DTRACE_PROBE4
	#undef DTRACE_PROBE4
	#endif /* DTRACE_PROBE4 */
	#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i)

	/*
	* Tunables.
	*/
	typedef struct zfs_kernel_param {
	const char name; / unused stub */
	} zfs_kernel_param_t;

	#define ZFS_MODULE_PARAM(scope_prefix, name_prefix, name, type, perm, desc)
	#define ZFS_MODULE_PARAM_ARGS void
	#define ZFS_MODULE_PARAM_CALL(scope_prefix, name_prefix, name, setfunc, \
	getfunc, perm, desc)

	/*
	* Threads.
	*/
	typedef pthread_t kthread_t;

	#define TS_RUN 0x00000002
	#define TS_JOINABLE 0x00000004

	#define curthread ((void *)(uintptr_t)pthread_self())
	#define kpreempt(x) yield()
	#define getcomm() "unknown"

	#define thread_create_named(name, stk, stksize, func, arg, len, \
	pp, state, pri) \
	zk_thread_create(func, arg, stksize, state)
	#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
	zk_thread_create(func, arg, stksize, state)
	#define thread_exit() pthread_exit(NULL)
	#define thread_join(t) pthread_join((pthread_t)(t), NULL)

	#define newproc(f, a, cid, pri, ctp, pid) (ENOSYS)

	/* in libzpool, p0 exists only to have its address taken */
	typedef struct proc {
	uintptr_t this_is_never_used_dont_dereference_it;
	} proc_t;

	extern struct proc p0;
	#define curproc (&p0)

	#define PS_NONE -1

	extern kthread_t zk_thread_create(void (func)(void ), void arg,
	size_t stksize, int state);

	#define issig(why) (FALSE)
	#define ISSIG(thr, why) (FALSE)

	#define kpreempt_disable() ((void)0)
	#define kpreempt_enable() ((void)0)
	#define cond_resched() sched_yield()

	/*
	* Mutexes
	*/
	typedef struct kmutex {
	pthread_mutex_t m_lock;
	pthread_t m_owner;
	} kmutex_t;

	#define MUTEX_DEFAULT 0
	#define MUTEX_NOLOCKDEP MUTEX_DEFAULT
	#define MUTEX_HELD(mp) pthread_equal((mp)->m_owner, pthread_self())
	#define MUTEX_NOT_HELD(mp) !MUTEX_HELD(mp)

	extern void mutex_init(kmutex_t mp, char name, int type, void *cookie);
	extern void mutex_destroy(kmutex_t *mp);
	extern void mutex_enter(kmutex_t *mp);
	extern void mutex_exit(kmutex_t *mp);
	extern int mutex_tryenter(kmutex_t *mp);

	#define NESTED_SINGLE 1
	#define mutex_enter_nested(mp, class) mutex_enter(mp)
	/*
	* RW locks
	*/
	typedef struct krwlock {
	pthread_rwlock_t rw_lock;
	pthread_t rw_owner;
	uint_t rw_readers;
	} krwlock_t;

	typedef int krw_t;

	#define RW_READER 0
	#define RW_WRITER 1
	#define RW_DEFAULT RW_READER
	#define RW_NOLOCKDEP RW_READER

	#define RW_READ_HELD(rw) ((rw)->rw_readers > 0)
	#define RW_WRITE_HELD(rw) pthread_equal((rw)->rw_owner, pthread_self())
	#define RW_LOCK_HELD(rw) (RW_READ_HELD(rw) \|\| RW_WRITE_HELD(rw))

	extern void rw_init(krwlock_t rwlp, char name, int type, void *arg);
	extern void rw_destroy(krwlock_t *rwlp);
	extern void rw_enter(krwlock_t *rwlp, krw_t rw);
	extern int rw_tryenter(krwlock_t *rwlp, krw_t rw);
	extern int rw_tryupgrade(krwlock_t *rwlp);
	extern void rw_exit(krwlock_t *rwlp);
	#define rw_downgrade(rwlp) do { } while (0)

	/*
	* Credentials
	*/
	extern uid_t crgetuid(cred_t *cr);
	extern uid_t crgetruid(cred_t *cr);
	extern gid_t crgetgid(cred_t *cr);
	extern int crgetngroups(cred_t *cr);
	extern gid_t crgetgroups(cred_t cr);

	/*
	* Condition variables
	*/
	typedef pthread_cond_t kcondvar_t;

	#define CV_DEFAULT 0
	#define CALLOUT_FLAG_ABSOLUTE 0x2

	extern void cv_init(kcondvar_t cv, char name, int type, void *arg);
	extern void cv_destroy(kcondvar_t *cv);
	extern void cv_wait(kcondvar_t cv, kmutex_t mp);
	extern int cv_wait_sig(kcondvar_t cv, kmutex_t mp);
	extern int cv_timedwait(kcondvar_t cv, kmutex_t mp, clock_t abstime);
	extern int cv_timedwait_hires(kcondvar_t cvp, kmutex_t mp, hrtime_t tim,
	hrtime_t res, int flag);
	extern void cv_signal(kcondvar_t *cv);
	extern void cv_broadcast(kcondvar_t *cv);

	#define cv_timedwait_io(cv, mp, at) cv_timedwait(cv, mp, at)
	#define cv_timedwait_idle(cv, mp, at) cv_timedwait(cv, mp, at)
	#define cv_timedwait_sig(cv, mp, at) cv_timedwait(cv, mp, at)
	#define cv_wait_io(cv, mp) cv_wait(cv, mp)
	#define cv_wait_idle(cv, mp) cv_wait(cv, mp)
	#define cv_wait_io_sig(cv, mp) cv_wait_sig(cv, mp)
	#define cv_timedwait_sig_hires(cv, mp, t, r, f) \
	cv_timedwait_hires(cv, mp, t, r, f)
	#define cv_timedwait_idle_hires(cv, mp, t, r, f) \
	cv_timedwait_hires(cv, mp, t, r, f)

	/*
	* Thread-specific data
	*/
	#define tsd_get(k) pthread_getspecific(k)
	#define tsd_set(k, v) pthread_setspecific(k, v)
	#define tsd_create(kp, d) pthread_key_create((pthread_key_t *)kp, d)
	#define tsd_destroy(kp) /* nothing */
	#ifdef __FreeBSD__
	typedef off_t loff_t;
	#endif

	/*
	* kstat creation, installation and deletion
	*/
	extern kstat_t kstat_create(const char , int,
	const char , const char , uchar_t, ulong_t, uchar_t);
	extern void kstat_install(kstat_t *);
	extern void kstat_delete(kstat_t *);
	-extern void kstat_waitq_enter(kstat_io_t *);
	-extern void kstat_waitq_exit(kstat_io_t *);
	-extern void kstat_runq_enter(kstat_io_t *);
	-extern void kstat_runq_exit(kstat_io_t *);
	-extern void kstat_waitq_to_runq(kstat_io_t *);
	-extern void kstat_runq_back_to_waitq(kstat_io_t *);
	extern void kstat_set_raw_ops(kstat_t *ksp,
	int (headers)(char buf, size_t size),
	int (data)(char buf, size_t size, void *data),
	void (addr)(kstat_t *ksp, loff_t index));

	/*
	* procfs list manipulation
	*/

	typedef struct procfs_list {
	void *pl_private;
	kmutex_t pl_lock;
	list_t pl_list;
	uint64_t pl_next_id;
	size_t pl_node_offset;
	} procfs_list_t;

	#ifndef __cplusplus
	struct seq_file { };
	void seq_printf(struct seq_file m, const char fmt, ...);

	typedef struct procfs_list_node {
	list_node_t pln_link;
	uint64_t pln_id;
	} procfs_list_node_t;

	void procfs_list_install(const char *module,
	const char *submodule,
	const char *name,
	mode_t mode,
	procfs_list_t *procfs_list,
	int (show)(struct seq_file f, void *p),
	int (show_header)(struct seq_file f),
	int (clear)(procfs_list_t procfs_list),
	size_t procfs_list_node_off);
	void procfs_list_uninstall(procfs_list_t *procfs_list);
	void procfs_list_destroy(procfs_list_t *procfs_list);
	void procfs_list_add(procfs_list_t procfs_list, void p);
	#endif

	/*
	* Kernel memory
	*/
	#define KM_SLEEP UMEM_NOFAIL
	#define KM_PUSHPAGE KM_SLEEP
	#define KM_NOSLEEP UMEM_DEFAULT
	#define KM_NORMALPRI 0 /* not needed with UMEM_DEFAULT */
	#define KMC_NODEBUG UMC_NODEBUG
	#define KMC_KVMEM 0x0
	#define kmem_alloc(_s, _f) umem_alloc(_s, _f)
	#define kmem_zalloc(_s, _f) umem_zalloc(_s, _f)
	#define kmem_free(_b, _s) umem_free(_b, _s)
	#define vmem_alloc(_s, _f) kmem_alloc(_s, _f)
	#define vmem_zalloc(_s, _f) kmem_zalloc(_s, _f)
	#define vmem_free(_b, _s) kmem_free(_b, _s)
	#define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \
	umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i)
	#define kmem_cache_destroy(_c) umem_cache_destroy(_c)
	#define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f)
	#define kmem_cache_free(_c, _b) umem_cache_free(_c, _b)
	#define kmem_debugging() 0
	#define kmem_cache_reap_now(_c) umem_cache_reap_now(_c);
	#define kmem_cache_set_move(_c, _cb) /* nothing */
	#define POINTER_INVALIDATE(_pp) /* nothing */
	#define POINTER_IS_VALID(_p) 0

	typedef umem_cache_t kmem_cache_t;

	typedef enum kmem_cbrc {
	KMEM_CBRC_YES,
	KMEM_CBRC_NO,
	KMEM_CBRC_LATER,
	KMEM_CBRC_DONT_NEED,
	KMEM_CBRC_DONT_KNOW
	} kmem_cbrc_t;

	/*
	* Task queues
	*/

	#define TASKQ_NAMELEN 31

	typedef uintptr_t taskqid_t;
	typedef void (task_func_t)(void *);

	typedef struct taskq_ent {
	struct taskq_ent *tqent_next;
	struct taskq_ent *tqent_prev;
	task_func_t *tqent_func;
	void *tqent_arg;
	uintptr_t tqent_flags;
	} taskq_ent_t;

	typedef struct taskq {
	char tq_name[TASKQ_NAMELEN + 1];
	kmutex_t tq_lock;
	krwlock_t tq_threadlock;
	kcondvar_t tq_dispatch_cv;
	kcondvar_t tq_wait_cv;
	kthread_t **tq_threadlist;
	int tq_flags;
	int tq_active;
	int tq_nthreads;
	int tq_nalloc;
	int tq_minalloc;
	int tq_maxalloc;
	kcondvar_t tq_maxalloc_cv;
	int tq_maxalloc_wait;
	taskq_ent_t *tq_freelist;
	taskq_ent_t tq_task;
	} taskq_t;

	#define TQENT_FLAG_PREALLOC 0x1 /* taskq_dispatch_ent used */

	#define TASKQ_PREPOPULATE 0x0001
	#define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */
	#define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */
	#define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */
	#define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */

	#define TQ_SLEEP KM_SLEEP /* Can block for memory */
	#define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */
	#define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */
	#define TQ_FRONT 0x08 /* Queue in front */

	#define TASKQID_INVALID ((taskqid_t)0)

	extern taskq_t *system_taskq;
	extern taskq_t *system_delay_taskq;

	extern taskq_t taskq_create(const char , int, pri_t, int, int, uint_t);
	#define taskq_create_proc(a, b, c, d, e, p, f) \
	(taskq_create(a, b, c, d, e, f))
	#define taskq_create_sysdc(a, b, d, e, p, dc, f) \
	(taskq_create(a, b, maxclsyspri, d, e, f))
	extern taskqid_t taskq_dispatch(taskq_t , task_func_t, void , uint_t);
	extern taskqid_t taskq_dispatch_delay(taskq_t , task_func_t, void , uint_t,
	clock_t);
	extern void taskq_dispatch_ent(taskq_t , task_func_t, void , uint_t,
	taskq_ent_t *);
	extern int taskq_empty_ent(taskq_ent_t *);
	extern void taskq_init_ent(taskq_ent_t *);
	extern void taskq_destroy(taskq_t *);
	extern void taskq_wait(taskq_t *);
	extern void taskq_wait_id(taskq_t *, taskqid_t);
	extern void taskq_wait_outstanding(taskq_t *, taskqid_t);
	extern int taskq_member(taskq_t , kthread_t );
	extern taskq_t *taskq_of_curthread(void);
	extern int taskq_cancel_id(taskq_t *, taskqid_t);
	extern void system_taskq_init(void);
	extern void system_taskq_fini(void);

	#define XVA_MAPSIZE 3
	#define XVA_MAGIC 0x78766174

	extern char *vn_dumpdir;
	#define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */

	typedef struct xoptattr {
	inode_timespec_t xoa_createtime; /* Create time of file */
	uint8_t xoa_archive;
	uint8_t xoa_system;
	uint8_t xoa_readonly;
	uint8_t xoa_hidden;
	uint8_t xoa_nounlink;
	uint8_t xoa_immutable;
	uint8_t xoa_appendonly;
	uint8_t xoa_nodump;
	uint8_t xoa_settable;
	uint8_t xoa_opaque;
	uint8_t xoa_av_quarantined;
	uint8_t xoa_av_modified;
	uint8_t xoa_av_scanstamp[AV_SCANSTAMP_SZ];
	uint8_t xoa_reparse;
	uint8_t xoa_offline;
	uint8_t xoa_sparse;
	} xoptattr_t;

	typedef struct vattr {
	uint_t va_mask; /* bit-mask of attributes */
	u_offset_t va_size; /* file size in bytes */
	} vattr_t;


	typedef struct xvattr {
	vattr_t xva_vattr; /* Embedded vattr structure */
	uint32_t xva_magic; /* Magic Number */
	uint32_t xva_mapsize; /* Size of attr bitmap (32-bit words) */
	uint32_t xva_rtnattrmapp; / Ptr to xva_rtnattrmap[] */
	uint32_t xva_reqattrmap[XVA_MAPSIZE]; /* Requested attrs */
	uint32_t xva_rtnattrmap[XVA_MAPSIZE]; /* Returned attrs */
	xoptattr_t xva_xoptattrs; /* Optional attributes */
	} xvattr_t;

	typedef struct vsecattr {
	uint_t vsa_mask; /* See below */
	int vsa_aclcnt; /* ACL entry count */
	void vsa_aclentp; / pointer to ACL entries */
	int vsa_dfaclcnt; /* default ACL entry count */
	void vsa_dfaclentp; / pointer to default ACL entries */
	size_t vsa_aclentsz; /* ACE size in bytes of vsa_aclentp */
	} vsecattr_t;

	#define AT_MODE 0x00002
	#define AT_UID 0x00004
	#define AT_GID 0x00008
	#define AT_FSID 0x00010
	#define AT_NODEID 0x00020
	#define AT_NLINK 0x00040
	#define AT_SIZE 0x00080
	#define AT_ATIME 0x00100
	#define AT_MTIME 0x00200
	#define AT_CTIME 0x00400
	#define AT_RDEV 0x00800
	#define AT_BLKSIZE 0x01000
	#define AT_NBLOCKS 0x02000
	#define AT_SEQ 0x08000
	#define AT_XVATTR 0x10000

	#define CRCREAT 0

	#define F_FREESP 11
	#define FIGNORECASE 0x80000 /* request case-insensitive lookups */

	/*
	* Random stuff
	*/
	#define ddi_get_lbolt() (gethrtime() >> 23)
	#define ddi_get_lbolt64() (gethrtime() >> 23)
	#define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */

	#define ddi_time_before(a, b) (a < b)
	#define ddi_time_after(a, b) ddi_time_before(b, a)
	#define ddi_time_before_eq(a, b) (!ddi_time_after(a, b))
	#define ddi_time_after_eq(a, b) ddi_time_before_eq(b, a)

	#define ddi_time_before64(a, b) (a < b)
	#define ddi_time_after64(a, b) ddi_time_before64(b, a)
	#define ddi_time_before_eq64(a, b) (!ddi_time_after64(a, b))
	#define ddi_time_after_eq64(a, b) ddi_time_before_eq64(b, a)

	extern void delay(clock_t ticks);

	#define SEC_TO_TICK(sec) ((sec) * hz)
	#define MSEC_TO_TICK(msec) (howmany((hrtime_t)(msec) * hz, MILLISEC))
	#define USEC_TO_TICK(usec) (howmany((hrtime_t)(usec) * hz, MICROSEC))
	#define NSEC_TO_TICK(nsec) (howmany((hrtime_t)(nsec) * hz, NANOSEC))

	#define max_ncpus 64
	#define boot_ncpus (sysconf(_SC_NPROCESSORS_ONLN))

	/*
	* Process priorities as defined by setpriority(2) and getpriority(2).
	*/
	#define minclsyspri 19
	#define maxclsyspri -20
	#define defclsyspri 0

	#define CPU_SEQID ((uintptr_t)pthread_self() & (max_ncpus - 1))
	#define CPU_SEQID_UNSTABLE CPU_SEQID

	#define kcred NULL
	#define CRED() NULL

	#define ptob(x) ((x) * PAGESIZE)

	#define NN_DIVISOR_1000 (1U << 0)
	#define NN_NUMBUF_SZ (6)

	extern uint64_t physmem;
	extern const char *random_path;
	extern const char *urandom_path;

	extern int highbit64(uint64_t i);
	extern int lowbit64(uint64_t i);
	extern int random_get_bytes(uint8_t *ptr, size_t len);
	extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);

	extern void kernel_init(int mode);
	extern void kernel_fini(void);
	extern void random_init(void);
	extern void random_fini(void);

	struct spa;
	extern void show_pool_stats(struct spa *);
	extern int set_global_var(char const *arg);

	typedef struct callb_cpr {
	kmutex_t *cc_lockp;
	} callb_cpr_t;

	#define CALLB_CPR_INIT(cp, lockp, func, name) { \
	(cp)->cc_lockp = lockp; \
	}

	#define CALLB_CPR_SAFE_BEGIN(cp) { \
	ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
	}

	#define CALLB_CPR_SAFE_END(cp, lockp) { \
	ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
	}

	#define CALLB_CPR_EXIT(cp) { \
	ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
	mutex_exit((cp)->cc_lockp); \
	}

	#define zone_dataset_visible(x, y) (1)
	#define INGLOBALZONE(z) (1)
	extern uint32_t zone_get_hostid(void *zonep);

	extern char kmem_vasprintf(const char fmt, va_list adx);
	extern char kmem_asprintf(const char fmt, ...);
	#define kmem_strfree(str) kmem_free((str), strlen(str) + 1)
	#define kmem_strdup(s) strdup(s)

	/*
	* Hostname information
	*/
	extern char hw_serial[]; /* for userland-emulated hostid access */
	extern int ddi_strtoul(const char str, char *nptr, int base,
	unsigned long *result);

	extern int ddi_strtoull(const char str, char *nptr, int base,
	u_longlong_t *result);

	typedef struct utsname utsname_t;
	extern utsname_t *utsname(void);

	/* ZFS Boot Related stuff. */

	struct _buf {
	intptr_t _fd;
	};

	struct bootstat {
	uint64_t st_size;
	};

	typedef struct ace_object {
	uid_t a_who;
	uint32_t a_access_mask;
	uint16_t a_flags;
	uint16_t a_type;
	uint8_t a_obj_type[16];
	uint8_t a_inherit_obj_type[16];
	} ace_object_t;


	#define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05
	#define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06
	#define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07
	#define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08

	extern int zfs_secpolicy_snapshot_perms(const char name, cred_t cr);
	extern int zfs_secpolicy_rename_perms(const char from, const char to,
	cred_t *cr);
	extern int zfs_secpolicy_destroy_perms(const char name, cred_t cr);
	extern int secpolicy_zfs(const cred_t *cr);
	extern int secpolicy_zfs_proc(const cred_t cr, proc_t proc);
	extern zoneid_t getzoneid(void);

	/* SID stuff */
	typedef struct ksiddomain {
	uint_t kd_ref;
	uint_t kd_len;
	char *kd_name;
	} ksiddomain_t;

	ksiddomain_t ksid_lookupdomain(const char );
	void ksiddomain_rele(ksiddomain_t *);

	#define DDI_SLEEP KM_SLEEP
	#define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) \
	sysevent_post_event(_c, _d, _b, "libzpool", _e, _f)

	#define zfs_sleep_until(wakeup) \
	do { \
	hrtime_t delta = wakeup - gethrtime(); \
	struct timespec ts; \
	ts.tv_sec = delta / NANOSEC; \
	ts.tv_nsec = delta % NANOSEC; \
	(void) nanosleep(&ts, NULL); \
	} while (0)

	typedef int fstrans_cookie_t;

	extern fstrans_cookie_t spl_fstrans_mark(void);
	extern void spl_fstrans_unmark(fstrans_cookie_t);
	extern int __spl_pf_fstrans_check(void);
	extern int kmem_cache_reap_active(void);

	#define ____cacheline_aligned

	/*
	* Kernel modules
	*/
	#define __init
	#define __exit

	#endif /* _KERNEL \|\| _STANDALONE */

	#ifdef __cplusplus
	};
	#endif

	#endif /* _SYS_ZFS_CONTEXT_H */
	diff --git a/sys/contrib/openzfs/include/thread_pool.h b/sys/contrib/openzfs/include/thread_pool.h
	index 57266f11c5a6..43090c3c6644 100644
	--- a/sys/contrib/openzfs/include/thread_pool.h
	+++ b/sys/contrib/openzfs/include/thread_pool.h
	@@ -1,72 +1,56 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	/*
	* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
	* Use is subject to license terms.
	*/

	#ifndef _THREAD_POOL_H_
	-#define _THREAD_POOL_H_
	+#define _THREAD_POOL_H_ extern __attribute__((visibility("default")))

	#include <sys/types.h>
	#include <thread.h>
	#include <pthread.h>

	#ifdef __cplusplus
	extern "C" {
	#endif

	typedef struct tpool tpool_t; /* opaque thread pool descriptor */

	-#if defined(__STDC__)
	-
	-extern tpool_t *tpool_create(uint_t min_threads, uint_t max_threads,
	+_THREAD_POOL_H_ tpool_t *tpool_create(uint_t min_threads, uint_t max_threads,
	uint_t linger, pthread_attr_t *attr);
	-extern int tpool_dispatch(tpool_t *tpool,
	+_THREAD_POOL_H_ int tpool_dispatch(tpool_t *tpool,
	void (func)(void ), void *arg);
	-extern void tpool_destroy(tpool_t *tpool);
	-extern void tpool_abandon(tpool_t *tpool);
	-extern void tpool_wait(tpool_t *tpool);
	-extern void tpool_suspend(tpool_t *tpool);
	-extern int tpool_suspended(tpool_t *tpool);
	-extern void tpool_resume(tpool_t *tpool);
	-extern int tpool_member(tpool_t *tpool);
	-
	-#else /* Non ANSI */
	-
	-extern tpool_t *tpool_create();
	-extern int tpool_dispatch();
	-extern void tpool_destroy();
	-extern void tpool_abandon();
	-extern void tpool_wait();
	-extern void tpool_suspend();
	-extern int tpool_suspended();
	-extern void tpool_resume();
	-extern int tpool_member();
	-
	-#endif /* __STDC__ */
	+_THREAD_POOL_H_ void tpool_destroy(tpool_t *tpool);
	+_THREAD_POOL_H_ void tpool_abandon(tpool_t *tpool);
	+_THREAD_POOL_H_ void tpool_wait(tpool_t *tpool);
	+_THREAD_POOL_H_ void tpool_suspend(tpool_t *tpool);
	+_THREAD_POOL_H_ int tpool_suspended(tpool_t *tpool);
	+_THREAD_POOL_H_ void tpool_resume(tpool_t *tpool);
	+_THREAD_POOL_H_ int tpool_member(tpool_t *tpool);

	#ifdef __cplusplus
	}
	#endif

	#endif /* _THREAD_POOL_H_ */
	diff --git a/sys/contrib/openzfs/lib/libavl/Makefile.am b/sys/contrib/openzfs/lib/libavl/Makefile.am
	index 2e0a431c77fb..3166febd02c5 100644
	--- a/sys/contrib/openzfs/lib/libavl/Makefile.am
	+++ b/sys/contrib/openzfs/lib/libavl/Makefile.am
	@@ -1,16 +1,17 @@
	include $(top_srcdir)/config/Rules.am

	VPATH = $(top_srcdir)/module/avl/

	# Includes kernel code, generate warnings for large stack frames
	AM_CFLAGS += $(FRAME_LARGER_THAN)
	+AM_CFLAGS += -fvisibility=hidden

	noinst_LTLIBRARIES = libavl.la

	KERNEL_C = \
	avl.c

	nodist_libavl_la_SOURCES = \
	$(KERNEL_C)

	include $(top_srcdir)/config/CppCheck.am
	diff --git a/sys/contrib/openzfs/lib/libefi/Makefile.am b/sys/contrib/openzfs/lib/libefi/Makefile.am
	index b26f7a6dcd5b..580319a31495 100644
	--- a/sys/contrib/openzfs/lib/libefi/Makefile.am
	+++ b/sys/contrib/openzfs/lib/libefi/Makefile.am
	@@ -1,14 +1,15 @@
	include $(top_srcdir)/config/Rules.am

	AM_CFLAGS += $(LIBUUID_CFLAGS) $(ZLIB_CFLAGS)
	+AM_CFLAGS += -fvisibility=hidden

	noinst_LTLIBRARIES = libefi.la

	USER_C = \
	rdwr_efi.c

	libefi_la_SOURCES = $(USER_C)

	libefi_la_LIBADD = $(LIBUUID_LIBS) $(ZLIB_LIBS)

	include $(top_srcdir)/config/CppCheck.am
	diff --git a/sys/contrib/openzfs/lib/libefi/rdwr_efi.c b/sys/contrib/openzfs/lib/libefi/rdwr_efi.c
	index 1e022cc8eeaa..fd243e230e7d 100644
	--- a/sys/contrib/openzfs/lib/libefi/rdwr_efi.c
	+++ b/sys/contrib/openzfs/lib/libefi/rdwr_efi.c
	@@ -1,1748 +1,1660 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	/*
	* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright 2012 Nexenta Systems, Inc. All rights reserved.
	* Copyright (c) 2018 by Delphix. All rights reserved.
	*/

	#include <stdio.h>
	#include <stdlib.h>
	#include <errno.h>
	#include <string.h>
	#include <strings.h>
	#include <unistd.h>
	#include <uuid/uuid.h>
	#include <zlib.h>
	#include <libintl.h>
	#include <sys/types.h>
	#include <sys/dkio.h>
	#include <sys/vtoc.h>
	#include <sys/mhd.h>
	#include <sys/param.h>
	#include <sys/dktp/fdisk.h>
	#include <sys/efi_partition.h>
	#include <sys/byteorder.h>
	#include <sys/vdev_disk.h>
	#include <linux/fs.h>
	#include <linux/blkpg.h>

	static struct uuid_to_ptag {
	struct uuid uuid;
	} conversion_array[] = {
	{ EFI_UNUSED },
	{ EFI_BOOT },
	{ EFI_ROOT },
	{ EFI_SWAP },
	{ EFI_USR },
	{ EFI_BACKUP },
	{ EFI_UNUSED }, /* STAND is never used */
	{ EFI_VAR },
	{ EFI_HOME },
	{ EFI_ALTSCTR },
	{ EFI_UNUSED }, /* CACHE (cachefs) is never used */
	{ EFI_RESERVED },
	{ EFI_SYSTEM },
	{ EFI_LEGACY_MBR },
	{ EFI_SYMC_PUB },
	{ EFI_SYMC_CDS },
	{ EFI_MSFT_RESV },
	{ EFI_DELL_BASIC },
	{ EFI_DELL_RAID },
	{ EFI_DELL_SWAP },
	{ EFI_DELL_LVM },
	{ EFI_DELL_RESV },
	{ EFI_AAPL_HFS },
	{ EFI_AAPL_UFS },
	{ EFI_FREEBSD_BOOT },
	{ EFI_FREEBSD_SWAP },
	{ EFI_FREEBSD_UFS },
	{ EFI_FREEBSD_VINUM },
	{ EFI_FREEBSD_ZFS },
	{ EFI_BIOS_BOOT },
	{ EFI_INTC_RS },
	{ EFI_SNE_BOOT },
	{ EFI_LENOVO_BOOT },
	{ EFI_MSFT_LDMM },
	{ EFI_MSFT_LDMD },
	{ EFI_MSFT_RE },
	{ EFI_IBM_GPFS },
	{ EFI_MSFT_STORAGESPACES },
	{ EFI_HPQ_DATA },
	{ EFI_HPQ_SVC },
	{ EFI_RHT_DATA },
	{ EFI_RHT_HOME },
	{ EFI_RHT_SRV },
	{ EFI_RHT_DMCRYPT },
	{ EFI_RHT_LUKS },
	{ EFI_FREEBSD_DISKLABEL },
	{ EFI_AAPL_RAID },
	{ EFI_AAPL_RAIDOFFLINE },
	{ EFI_AAPL_BOOT },
	{ EFI_AAPL_LABEL },
	{ EFI_AAPL_TVRECOVERY },
	{ EFI_AAPL_CORESTORAGE },
	{ EFI_NETBSD_SWAP },
	{ EFI_NETBSD_FFS },
	{ EFI_NETBSD_LFS },
	{ EFI_NETBSD_RAID },
	{ EFI_NETBSD_CAT },
	{ EFI_NETBSD_CRYPT },
	{ EFI_GOOG_KERN },
	{ EFI_GOOG_ROOT },
	{ EFI_GOOG_RESV },
	{ EFI_HAIKU_BFS },
	{ EFI_MIDNIGHTBSD_BOOT },
	{ EFI_MIDNIGHTBSD_DATA },
	{ EFI_MIDNIGHTBSD_SWAP },
	{ EFI_MIDNIGHTBSD_UFS },
	{ EFI_MIDNIGHTBSD_VINUM },
	{ EFI_MIDNIGHTBSD_ZFS },
	{ EFI_CEPH_JOURNAL },
	{ EFI_CEPH_DMCRYPTJOURNAL },
	{ EFI_CEPH_OSD },
	{ EFI_CEPH_DMCRYPTOSD },
	{ EFI_CEPH_CREATE },
	{ EFI_CEPH_DMCRYPTCREATE },
	{ EFI_OPENBSD_DISKLABEL },
	{ EFI_BBRY_QNX },
	{ EFI_BELL_PLAN9 },
	{ EFI_VMW_KCORE },
	{ EFI_VMW_VMFS },
	{ EFI_VMW_RESV },
	{ EFI_RHT_ROOTX86 },
	{ EFI_RHT_ROOTAMD64 },
	{ EFI_RHT_ROOTARM },
	{ EFI_RHT_ROOTARM64 },
	{ EFI_ACRONIS_SECUREZONE },
	{ EFI_ONIE_BOOT },
	{ EFI_ONIE_CONFIG },
	{ EFI_IBM_PPRPBOOT },
	{ EFI_FREEDESKTOP_BOOT }
	};

	-/*
	- * Default vtoc information for non-SVr4 partitions
	- */
	-struct dk_map2 default_vtoc_map[NDKMAP] = {
	- { V_ROOT, 0 }, /* a - 0 */
	- { V_SWAP, V_UNMNT }, /* b - 1 */
	- { V_BACKUP, V_UNMNT }, /* c - 2 */
	- { V_UNASSIGNED, 0 }, /* d - 3 */
	- { V_UNASSIGNED, 0 }, /* e - 4 */
	- { V_UNASSIGNED, 0 }, /* f - 5 */
	- { V_USR, 0 }, /* g - 6 */
	- { V_UNASSIGNED, 0 }, /* h - 7 */
	-
	-#if defined(_SUNOS_VTOC_16)
	-
	-#if defined(i386) \|\| defined(__amd64) \|\| defined(__arm) \|\| \
	- defined(__powerpc) \|\| defined(__sparc) \|\| defined(__s390__) \|\| \
	- defined(__mips__) \|\| defined(__rv64g__)
	- { V_BOOT, V_UNMNT }, /* i - 8 */
	- { V_ALTSCTR, 0 }, /* j - 9 */
	-
	-#else
	-#error No VTOC format defined.
	-#endif /* defined(i386) */
	-
	- { V_UNASSIGNED, 0 }, /* k - 10 */
	- { V_UNASSIGNED, 0 }, /* l - 11 */
	- { V_UNASSIGNED, 0 }, /* m - 12 */
	- { V_UNASSIGNED, 0 }, /* n - 13 */
	- { V_UNASSIGNED, 0 }, /* o - 14 */
	- { V_UNASSIGNED, 0 }, /* p - 15 */
	-#endif /* defined(_SUNOS_VTOC_16) */
	-};
	-
	int efi_debug = 0;

	static int efi_read(int, struct dk_gpt *);

	/*
	* Return a 32-bit CRC of the contents of the buffer. Pre-and-post
	* one's conditioning will be handled by crc32() internally.
	*/
	static uint32_t
	efi_crc32(const unsigned char *buf, unsigned int size)
	{
	uint32_t crc = crc32(0, Z_NULL, 0);

	crc = crc32(crc, buf, size);

	return (crc);
	}

	static int
	read_disk_info(int fd, diskaddr_t capacity, uint_t lbsize)
	{
	int sector_size;
	unsigned long long capacity_size;

	if (ioctl(fd, BLKSSZGET, &sector_size) < 0)
	return (-1);

	if (ioctl(fd, BLKGETSIZE64, &capacity_size) < 0)
	return (-1);

	*lbsize = (uint_t)sector_size;
	*capacity = (diskaddr_t)(capacity_size / sector_size);

	return (0);
	}

	/*
	* Return back the device name associated with the file descriptor. The
	* caller is responsible for freeing the memory associated with the
	* returned string.
	*/
	static char *
	efi_get_devname(int fd)
	{
	char path[32];

	/*
	* The libefi API only provides the open fd and not the file path.
	* To handle this realpath(3) is used to resolve the block device
	* name from /proc/self/fd/<fd>.
	*/
	(void) snprintf(path, sizeof (path), "/proc/self/fd/%d", fd);
	return (realpath(path, NULL));
	}

	static int
	efi_get_info(int fd, struct dk_cinfo *dki_info)
	{
	char *dev_path;
	int rval = 0;

	memset(dki_info, 0, sizeof (*dki_info));

	/*
	* The simplest way to get the partition number under linux is
	* to parse it out of the /dev/<disk><partition> block device name.
	* The kernel creates this using the partition number when it
	* populates /dev/ so it may be trusted. The tricky bit here is
	* that the naming convention is based on the block device type.
	* So we need to take this in to account when parsing out the
	* partition information. Aside from the partition number we collect
	* some additional device info.
	*/
	dev_path = efi_get_devname(fd);
	if (dev_path == NULL)
	goto error;

	if ((strncmp(dev_path, "/dev/sd", 7) == 0)) {
	strcpy(dki_info->dki_cname, "sd");
	dki_info->dki_ctype = DKC_SCSI_CCS;
	rval = sscanf(dev_path, "/dev/%[a-zA-Z]%hu",
	dki_info->dki_dname,
	&dki_info->dki_partition);
	} else if ((strncmp(dev_path, "/dev/hd", 7) == 0)) {
	strcpy(dki_info->dki_cname, "hd");
	dki_info->dki_ctype = DKC_DIRECT;
	rval = sscanf(dev_path, "/dev/%[a-zA-Z]%hu",
	dki_info->dki_dname,
	&dki_info->dki_partition);
	} else if ((strncmp(dev_path, "/dev/md", 7) == 0)) {
	strcpy(dki_info->dki_cname, "pseudo");
	dki_info->dki_ctype = DKC_MD;
	strcpy(dki_info->dki_dname, "md");
	rval = sscanf(dev_path, "/dev/md%[0-9]p%hu",
	dki_info->dki_dname + 2,
	&dki_info->dki_partition);
	} else if ((strncmp(dev_path, "/dev/vd", 7) == 0)) {
	strcpy(dki_info->dki_cname, "vd");
	dki_info->dki_ctype = DKC_MD;
	rval = sscanf(dev_path, "/dev/%[a-zA-Z]%hu",
	dki_info->dki_dname,
	&dki_info->dki_partition);
	} else if ((strncmp(dev_path, "/dev/xvd", 8) == 0)) {
	strcpy(dki_info->dki_cname, "xvd");
	dki_info->dki_ctype = DKC_MD;
	rval = sscanf(dev_path, "/dev/%[a-zA-Z]%hu",
	dki_info->dki_dname,
	&dki_info->dki_partition);
	} else if ((strncmp(dev_path, "/dev/zd", 7) == 0)) {
	strcpy(dki_info->dki_cname, "zd");
	dki_info->dki_ctype = DKC_MD;
	strcpy(dki_info->dki_dname, "zd");
	rval = sscanf(dev_path, "/dev/zd%[0-9]p%hu",
	dki_info->dki_dname + 2,
	&dki_info->dki_partition);
	} else if ((strncmp(dev_path, "/dev/dm-", 8) == 0)) {
	strcpy(dki_info->dki_cname, "pseudo");
	dki_info->dki_ctype = DKC_VBD;
	strcpy(dki_info->dki_dname, "dm-");
	rval = sscanf(dev_path, "/dev/dm-%[0-9]p%hu",
	dki_info->dki_dname + 3,
	&dki_info->dki_partition);
	} else if ((strncmp(dev_path, "/dev/ram", 8) == 0)) {
	strcpy(dki_info->dki_cname, "pseudo");
	dki_info->dki_ctype = DKC_PCMCIA_MEM;
	strcpy(dki_info->dki_dname, "ram");
	rval = sscanf(dev_path, "/dev/ram%[0-9]p%hu",
	dki_info->dki_dname + 3,
	&dki_info->dki_partition);
	} else if ((strncmp(dev_path, "/dev/loop", 9) == 0)) {
	strcpy(dki_info->dki_cname, "pseudo");
	dki_info->dki_ctype = DKC_VBD;
	strcpy(dki_info->dki_dname, "loop");
	rval = sscanf(dev_path, "/dev/loop%[0-9]p%hu",
	dki_info->dki_dname + 4,
	&dki_info->dki_partition);
	} else if ((strncmp(dev_path, "/dev/nvme", 9) == 0)) {
	strcpy(dki_info->dki_cname, "nvme");
	dki_info->dki_ctype = DKC_SCSI_CCS;
	strcpy(dki_info->dki_dname, "nvme");
	(void) sscanf(dev_path, "/dev/nvme%[0-9]",
	dki_info->dki_dname + 4);
	size_t controller_length = strlen(
	dki_info->dki_dname);
	strcpy(dki_info->dki_dname + controller_length,
	"n");
	rval = sscanf(dev_path,
	"/dev/nvme%*[0-9]n%[0-9]p%hu",
	dki_info->dki_dname + controller_length + 1,
	&dki_info->dki_partition);
	} else {
	strcpy(dki_info->dki_dname, "unknown");
	strcpy(dki_info->dki_cname, "unknown");
	dki_info->dki_ctype = DKC_UNKNOWN;
	}

	switch (rval) {
	case 0:
	errno = EINVAL;
	goto error;
	case 1:
	dki_info->dki_partition = 0;
	}

	free(dev_path);

	return (0);
	error:
	if (efi_debug)
	(void) fprintf(stderr, "DKIOCINFO errno 0x%x\n", errno);

	switch (errno) {
	case EIO:
	return (VT_EIO);
	case EINVAL:
	return (VT_EINVAL);
	default:
	return (VT_ERROR);
	}
	}

	/*
	* the number of blocks the EFI label takes up (round up to nearest
	* block)
	*/
	#define NBLOCKS(p, l) (1 + ((((p) * (int)sizeof (efi_gpe_t)) + \
	((l) - 1)) / (l)))
	/* number of partitions -- limited by what we can malloc */
	#define MAX_PARTS ((4294967295UL - sizeof (struct dk_gpt)) / \
	sizeof (struct dk_part))

	int
	efi_alloc_and_init(int fd, uint32_t nparts, struct dk_gpt **vtoc)
	{
	diskaddr_t capacity = 0;
	uint_t lbsize = 0;
	uint_t nblocks;
	size_t length;
	struct dk_gpt *vptr;
	struct uuid uuid;
	struct dk_cinfo dki_info;

	if (read_disk_info(fd, &capacity, &lbsize) != 0)
	return (-1);

	if (efi_get_info(fd, &dki_info) != 0)
	return (-1);

	if (dki_info.dki_partition != 0)
	return (-1);

	if ((dki_info.dki_ctype == DKC_PCMCIA_MEM) \|\|
	(dki_info.dki_ctype == DKC_VBD) \|\|
	(dki_info.dki_ctype == DKC_UNKNOWN))
	return (-1);

	nblocks = NBLOCKS(nparts, lbsize);
	if ((nblocks * lbsize) < EFI_MIN_ARRAY_SIZE + lbsize) {
	/* 16K plus one block for the GPT */
	nblocks = EFI_MIN_ARRAY_SIZE / lbsize + 1;
	}

	if (nparts > MAX_PARTS) {
	if (efi_debug) {
	(void) fprintf(stderr,
	"the maximum number of partitions supported is %lu\n",
	MAX_PARTS);
	}
	return (-1);
	}

	length = sizeof (struct dk_gpt) +
	sizeof (struct dk_part) * (nparts - 1);

	vptr = calloc(1, length);
	if (vptr == NULL)
	return (-1);

	*vtoc = vptr;

	vptr->efi_version = EFI_VERSION_CURRENT;
	vptr->efi_lbasize = lbsize;
	vptr->efi_nparts = nparts;
	/*
	* add one block here for the PMBR; on disks with a 512 byte
	* block size and 128 or fewer partitions, efi_first_u_lba
	* should work out to "34"
	*/
	vptr->efi_first_u_lba = nblocks + 1;
	vptr->efi_last_lba = capacity - 1;
	vptr->efi_altern_lba = capacity -1;
	vptr->efi_last_u_lba = vptr->efi_last_lba - nblocks;

	(void) uuid_generate((uchar_t *)&uuid);
	UUID_LE_CONVERT(vptr->efi_disk_uguid, uuid);
	return (0);
	}

	/*
	* Read EFI - return partition number upon success.
	*/
	int
	efi_alloc_and_read(int fd, struct dk_gpt **vtoc)
	{
	int rval;
	uint32_t nparts;
	int length;
	struct dk_gpt *vptr;

	/* figure out the number of entries that would fit into 16K */
	nparts = EFI_MIN_ARRAY_SIZE / sizeof (efi_gpe_t);
	length = (int) sizeof (struct dk_gpt) +
	(int) sizeof (struct dk_part) * (nparts - 1);
	vptr = calloc(1, length);

	if (vptr == NULL)
	return (VT_ERROR);

	vptr->efi_nparts = nparts;
	rval = efi_read(fd, vptr);

	if ((rval == VT_EINVAL) && vptr->efi_nparts > nparts) {
	void *tmp;
	length = (int) sizeof (struct dk_gpt) +
	(int) sizeof (struct dk_part) * (vptr->efi_nparts - 1);
	nparts = vptr->efi_nparts;
	if ((tmp = realloc(vptr, length)) == NULL) {
	/* cppcheck-suppress doubleFree */
	free(vptr);
	*vtoc = NULL;
	return (VT_ERROR);
	} else {
	vptr = tmp;
	rval = efi_read(fd, vptr);
	}
	}

	if (rval < 0) {
	if (efi_debug) {
	(void) fprintf(stderr,
	"read of EFI table failed, rval=%d\n", rval);
	}
	free(vptr);
	*vtoc = NULL;
	} else {
	*vtoc = vptr;
	}

	return (rval);
	}

	static int
	efi_ioctl(int fd, int cmd, dk_efi_t *dk_ioc)
	{
	void *data = dk_ioc->dki_data;
	int error;
	diskaddr_t capacity;
	uint_t lbsize;

	/*
	* When the IO is not being performed in kernel as an ioctl we need
	* to know the sector size so we can seek to the proper byte offset.
	*/
	if (read_disk_info(fd, &capacity, &lbsize) == -1) {
	if (efi_debug)
	fprintf(stderr, "unable to read disk info: %d", errno);

	errno = EIO;
	return (-1);
	}

	switch (cmd) {
	case DKIOCGETEFI:
	if (lbsize == 0) {
	if (efi_debug)
	(void) fprintf(stderr, "DKIOCGETEFI assuming "
	"LBA %d bytes\n", DEV_BSIZE);

	lbsize = DEV_BSIZE;
	}

	error = lseek(fd, dk_ioc->dki_lba * lbsize, SEEK_SET);
	if (error == -1) {
	if (efi_debug)
	(void) fprintf(stderr, "DKIOCGETEFI lseek "
	"error: %d\n", errno);
	return (error);
	}

	error = read(fd, data, dk_ioc->dki_length);
	if (error == -1) {
	if (efi_debug)
	(void) fprintf(stderr, "DKIOCGETEFI read "
	"error: %d\n", errno);
	return (error);
	}

	if (error != dk_ioc->dki_length) {
	if (efi_debug)
	(void) fprintf(stderr, "DKIOCGETEFI short "
	"read of %d bytes\n", error);
	errno = EIO;
	return (-1);
	}
	error = 0;
	break;

	case DKIOCSETEFI:
	if (lbsize == 0) {
	if (efi_debug)
	(void) fprintf(stderr, "DKIOCSETEFI unknown "
	"LBA size\n");
	errno = EIO;
	return (-1);
	}

	error = lseek(fd, dk_ioc->dki_lba * lbsize, SEEK_SET);
	if (error == -1) {
	if (efi_debug)
	(void) fprintf(stderr, "DKIOCSETEFI lseek "
	"error: %d\n", errno);
	return (error);
	}

	error = write(fd, data, dk_ioc->dki_length);
	if (error == -1) {
	if (efi_debug)
	(void) fprintf(stderr, "DKIOCSETEFI write "
	"error: %d\n", errno);
	return (error);
	}

	if (error != dk_ioc->dki_length) {
	if (efi_debug)
	(void) fprintf(stderr, "DKIOCSETEFI short "
	"write of %d bytes\n", error);
	errno = EIO;
	return (-1);
	}

	/* Sync the new EFI table to disk */
	error = fsync(fd);
	if (error == -1)
	return (error);

	/* Ensure any local disk cache is also flushed */
	if (ioctl(fd, BLKFLSBUF, 0) == -1)
	return (error);

	error = 0;
	break;

	default:
	if (efi_debug)
	(void) fprintf(stderr, "unsupported ioctl()\n");

	errno = EIO;
	return (-1);
	}

	return (error);
	}

	int
	efi_rescan(int fd)
	{
	int retry = 10;
	int error;

	/* Notify the kernel a devices partition table has been updated */
	while ((error = ioctl(fd, BLKRRPART)) != 0) {
	if ((--retry == 0) \|\| (errno != EBUSY)) {
	(void) fprintf(stderr, "the kernel failed to rescan "
	"the partition table: %d\n", errno);
	return (-1);
	}
	usleep(50000);
	}

	return (0);
	}

	static int
	check_label(int fd, dk_efi_t *dk_ioc)
	{
	efi_gpt_t *efi;
	uint_t crc;

	if (efi_ioctl(fd, DKIOCGETEFI, dk_ioc) == -1) {
	switch (errno) {
	case EIO:
	return (VT_EIO);
	default:
	return (VT_ERROR);
	}
	}
	efi = dk_ioc->dki_data;
	if (efi->efi_gpt_Signature != LE_64(EFI_SIGNATURE)) {
	if (efi_debug)
	(void) fprintf(stderr,
	"Bad EFI signature: 0x%llx != 0x%llx\n",
	(long long)efi->efi_gpt_Signature,
	(long long)LE_64(EFI_SIGNATURE));
	return (VT_EINVAL);
	}

	/*
	* check CRC of the header; the size of the header should
	* never be larger than one block
	*/
	crc = efi->efi_gpt_HeaderCRC32;
	efi->efi_gpt_HeaderCRC32 = 0;
	len_t headerSize = (len_t)LE_32(efi->efi_gpt_HeaderSize);

	if (headerSize < EFI_MIN_LABEL_SIZE \|\| headerSize > EFI_LABEL_SIZE) {
	if (efi_debug)
	(void) fprintf(stderr,
	"Invalid EFI HeaderSize %llu. Assuming %d.\n",
	headerSize, EFI_MIN_LABEL_SIZE);
	}

	if ((headerSize > dk_ioc->dki_length) \|\|
	crc != LE_32(efi_crc32((unsigned char *)efi, headerSize))) {
	if (efi_debug)
	(void) fprintf(stderr,
	"Bad EFI CRC: 0x%x != 0x%x\n",
	crc, LE_32(efi_crc32((unsigned char *)efi,
	headerSize)));
	return (VT_EINVAL);
	}

	return (0);
	}

	static int
	efi_read(int fd, struct dk_gpt *vtoc)
	{
	int i, j;
	int label_len;
	int rval = 0;
	int md_flag = 0;
	int vdc_flag = 0;
	diskaddr_t capacity = 0;
	uint_t lbsize = 0;
	struct dk_minfo disk_info;
	dk_efi_t dk_ioc;
	efi_gpt_t *efi;
	efi_gpe_t *efi_parts;
	struct dk_cinfo dki_info;
	uint32_t user_length;
	boolean_t legacy_label = B_FALSE;

	/*
	* get the partition number for this file descriptor.
	*/
	if ((rval = efi_get_info(fd, &dki_info)) != 0)
	return (rval);

	if ((strncmp(dki_info.dki_cname, "pseudo", 7) == 0) &&
	(strncmp(dki_info.dki_dname, "md", 3) == 0)) {
	md_flag++;
	} else if ((strncmp(dki_info.dki_cname, "vdc", 4) == 0) &&
	(strncmp(dki_info.dki_dname, "vdc", 4) == 0)) {
	/*
	* The controller and drive name "vdc" (virtual disk client)
	* indicates a LDoms virtual disk.
	*/
	vdc_flag++;
	}

	/* get the LBA size */
	if (read_disk_info(fd, &capacity, &lbsize) == -1) {
	if (efi_debug) {
	(void) fprintf(stderr,
	"unable to read disk info: %d",
	errno);
	}
	return (VT_EINVAL);
	}

	disk_info.dki_lbsize = lbsize;
	disk_info.dki_capacity = capacity;

	if (disk_info.dki_lbsize == 0) {
	if (efi_debug) {
	(void) fprintf(stderr,
	"efi_read: assuming LBA 512 bytes\n");
	}
	disk_info.dki_lbsize = DEV_BSIZE;
	}
	/*
	* Read the EFI GPT to figure out how many partitions we need
	* to deal with.
	*/
	dk_ioc.dki_lba = 1;
	if (NBLOCKS(vtoc->efi_nparts, disk_info.dki_lbsize) < 34) {
	label_len = EFI_MIN_ARRAY_SIZE + disk_info.dki_lbsize;
	} else {
	label_len = vtoc->efi_nparts * (int) sizeof (efi_gpe_t) +
	disk_info.dki_lbsize;
	if (label_len % disk_info.dki_lbsize) {
	/* pad to physical sector size */
	label_len += disk_info.dki_lbsize;
	label_len &= ~(disk_info.dki_lbsize - 1);
	}
	}

	if (posix_memalign((void **)&dk_ioc.dki_data,
	disk_info.dki_lbsize, label_len))
	return (VT_ERROR);

	memset(dk_ioc.dki_data, 0, label_len);
	dk_ioc.dki_length = disk_info.dki_lbsize;
	user_length = vtoc->efi_nparts;
	efi = dk_ioc.dki_data;
	if (md_flag) {
	dk_ioc.dki_length = label_len;
	if (efi_ioctl(fd, DKIOCGETEFI, &dk_ioc) == -1) {
	switch (errno) {
	case EIO:
	return (VT_EIO);
	default:
	return (VT_ERROR);
	}
	}
	} else if ((rval = check_label(fd, &dk_ioc)) == VT_EINVAL) {
	/*
	* No valid label here; try the alternate. Note that here
	* we just read GPT header and save it into dk_ioc.data,
	* Later, we will read GUID partition entry array if we
	* can get valid GPT header.
	*/

	/*
	* This is a workaround for legacy systems. In the past, the
	* last sector of SCSI disk was invisible on x86 platform. At
	* that time, backup label was saved on the next to the last
	* sector. It is possible for users to move a disk from previous
	* solaris system to present system. Here, we attempt to search
	* legacy backup EFI label first.
	*/
	dk_ioc.dki_lba = disk_info.dki_capacity - 2;
	dk_ioc.dki_length = disk_info.dki_lbsize;
	rval = check_label(fd, &dk_ioc);
	if (rval == VT_EINVAL) {
	/*
	* we didn't find legacy backup EFI label, try to
	* search backup EFI label in the last block.
	*/
	dk_ioc.dki_lba = disk_info.dki_capacity - 1;
	dk_ioc.dki_length = disk_info.dki_lbsize;
	rval = check_label(fd, &dk_ioc);
	if (rval == 0) {
	legacy_label = B_TRUE;
	if (efi_debug)
	(void) fprintf(stderr,
	"efi_read: primary label corrupt; "
	"using EFI backup label located on"
	" the last block\n");
	}
	} else {
	if ((efi_debug) && (rval == 0))
	(void) fprintf(stderr, "efi_read: primary label"
	" corrupt; using legacy EFI backup label "
	" located on the next to last block\n");
	}

	if (rval == 0) {
	dk_ioc.dki_lba = LE_64(efi->efi_gpt_PartitionEntryLBA);
	vtoc->efi_flags \|= EFI_GPT_PRIMARY_CORRUPT;
	vtoc->efi_nparts =
	LE_32(efi->efi_gpt_NumberOfPartitionEntries);
	/*
	* Partition tables are between backup GPT header
	* table and ParitionEntryLBA (the starting LBA of
	* the GUID partition entries array). Now that we
	* already got valid GPT header and saved it in
	* dk_ioc.dki_data, we try to get GUID partition
	* entry array here.
	*/
	/* LINTED */
	dk_ioc.dki_data = (efi_gpt_t )((char )dk_ioc.dki_data
	+ disk_info.dki_lbsize);
	if (legacy_label)
	dk_ioc.dki_length = disk_info.dki_capacity - 1 -
	dk_ioc.dki_lba;
	else
	dk_ioc.dki_length = disk_info.dki_capacity - 2 -
	dk_ioc.dki_lba;
	dk_ioc.dki_length *= disk_info.dki_lbsize;
	if (dk_ioc.dki_length >
	((len_t)label_len - sizeof (*dk_ioc.dki_data))) {
	rval = VT_EINVAL;
	} else {
	/*
	* read GUID partition entry array
	*/
	rval = efi_ioctl(fd, DKIOCGETEFI, &dk_ioc);
	}
	}

	} else if (rval == 0) {

	dk_ioc.dki_lba = LE_64(efi->efi_gpt_PartitionEntryLBA);
	/* LINTED */
	dk_ioc.dki_data = (efi_gpt_t )((char )dk_ioc.dki_data
	+ disk_info.dki_lbsize);
	dk_ioc.dki_length = label_len - disk_info.dki_lbsize;
	rval = efi_ioctl(fd, DKIOCGETEFI, &dk_ioc);

	} else if (vdc_flag && rval == VT_ERROR && errno == EINVAL) {
	/*
	* When the device is a LDoms virtual disk, the DKIOCGETEFI
	* ioctl can fail with EINVAL if the virtual disk backend
	* is a ZFS volume serviced by a domain running an old version
	* of Solaris. This is because the DKIOCGETEFI ioctl was
	* initially incorrectly implemented for a ZFS volume and it
	* expected the GPT and GPE to be retrieved with a single ioctl.
	* So we try to read the GPT and the GPE using that old style
	* ioctl.
	*/
	dk_ioc.dki_lba = 1;
	dk_ioc.dki_length = label_len;
	rval = check_label(fd, &dk_ioc);
	}

	if (rval < 0) {
	free(efi);
	return (rval);
	}

	/* LINTED -- always longlong aligned */
	efi_parts = (efi_gpe_t )(((char )efi) + disk_info.dki_lbsize);

	/*
	* Assemble this into a "dk_gpt" struct for easier
	* digestibility by applications.
	*/
	vtoc->efi_version = LE_32(efi->efi_gpt_Revision);
	vtoc->efi_nparts = LE_32(efi->efi_gpt_NumberOfPartitionEntries);
	vtoc->efi_part_size = LE_32(efi->efi_gpt_SizeOfPartitionEntry);
	vtoc->efi_lbasize = disk_info.dki_lbsize;
	vtoc->efi_last_lba = disk_info.dki_capacity - 1;
	vtoc->efi_first_u_lba = LE_64(efi->efi_gpt_FirstUsableLBA);
	vtoc->efi_last_u_lba = LE_64(efi->efi_gpt_LastUsableLBA);
	vtoc->efi_altern_lba = LE_64(efi->efi_gpt_AlternateLBA);
	UUID_LE_CONVERT(vtoc->efi_disk_uguid, efi->efi_gpt_DiskGUID);

	/*
	* If the array the user passed in is too small, set the length
	* to what it needs to be and return
	*/
	if (user_length < vtoc->efi_nparts) {
	return (VT_EINVAL);
	}

	for (i = 0; i < vtoc->efi_nparts; i++) {

	UUID_LE_CONVERT(vtoc->efi_parts[i].p_guid,
	efi_parts[i].efi_gpe_PartitionTypeGUID);

	for (j = 0;
	j < sizeof (conversion_array)
	/ sizeof (struct uuid_to_ptag); j++) {

	if (bcmp(&vtoc->efi_parts[i].p_guid,
	&conversion_array[j].uuid,
	sizeof (struct uuid)) == 0) {
	vtoc->efi_parts[i].p_tag = j;
	break;
	}
	}
	if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED)
	continue;
	vtoc->efi_parts[i].p_flag =
	LE_16(efi_parts[i].efi_gpe_Attributes.PartitionAttrs);
	vtoc->efi_parts[i].p_start =
	LE_64(efi_parts[i].efi_gpe_StartingLBA);
	vtoc->efi_parts[i].p_size =
	LE_64(efi_parts[i].efi_gpe_EndingLBA) -
	vtoc->efi_parts[i].p_start + 1;
	for (j = 0; j < EFI_PART_NAME_LEN; j++) {
	vtoc->efi_parts[i].p_name[j] =
	(uchar_t)LE_16(
	efi_parts[i].efi_gpe_PartitionName[j]);
	}

	UUID_LE_CONVERT(vtoc->efi_parts[i].p_uguid,
	efi_parts[i].efi_gpe_UniquePartitionGUID);
	}
	free(efi);

	return (dki_info.dki_partition);
	}

	/* writes a "protective" MBR */
	static int
	write_pmbr(int fd, struct dk_gpt *vtoc)
	{
	dk_efi_t dk_ioc;
	struct mboot mb;
	uchar_t *cp;
	diskaddr_t size_in_lba;
	uchar_t *buf;
	int len;

	len = (vtoc->efi_lbasize == 0) ? sizeof (mb) : vtoc->efi_lbasize;
	if (posix_memalign((void **)&buf, len, len))
	return (VT_ERROR);

	/*
	* Preserve any boot code and disk signature if the first block is
	* already an MBR.
	*/
	memset(buf, 0, len);
	dk_ioc.dki_lba = 0;
	dk_ioc.dki_length = len;
	/* LINTED -- always longlong aligned */
	dk_ioc.dki_data = (efi_gpt_t *)buf;
	if (efi_ioctl(fd, DKIOCGETEFI, &dk_ioc) == -1) {
	(void) memcpy(&mb, buf, sizeof (mb));
	bzero(&mb, sizeof (mb));
	mb.signature = LE_16(MBB_MAGIC);
	} else {
	(void) memcpy(&mb, buf, sizeof (mb));
	if (mb.signature != LE_16(MBB_MAGIC)) {
	bzero(&mb, sizeof (mb));
	mb.signature = LE_16(MBB_MAGIC);
	}
	}

	bzero(&mb.parts, sizeof (mb.parts));
	cp = (uchar_t *)&mb.parts[0];
	/* bootable or not */
	*cp++ = 0;
	/* beginning CHS; 0xffffff if not representable */
	*cp++ = 0xff;
	*cp++ = 0xff;
	*cp++ = 0xff;
	/* OS type */
	*cp++ = EFI_PMBR;
	/* ending CHS; 0xffffff if not representable */
	*cp++ = 0xff;
	*cp++ = 0xff;
	*cp++ = 0xff;
	/* starting LBA: 1 (little endian format) by EFI definition */
	*cp++ = 0x01;
	*cp++ = 0x00;
	*cp++ = 0x00;
	*cp++ = 0x00;
	/* ending LBA: last block on the disk (little endian format) */
	size_in_lba = vtoc->efi_last_lba;
	if (size_in_lba < 0xffffffff) {
	*cp++ = (size_in_lba & 0x000000ff);
	*cp++ = (size_in_lba & 0x0000ff00) >> 8;
	*cp++ = (size_in_lba & 0x00ff0000) >> 16;
	*cp++ = (size_in_lba & 0xff000000) >> 24;
	} else {
	*cp++ = 0xff;
	*cp++ = 0xff;
	*cp++ = 0xff;
	*cp++ = 0xff;
	}

	(void) memcpy(buf, &mb, sizeof (mb));
	/* LINTED -- always longlong aligned */
	dk_ioc.dki_data = (efi_gpt_t *)buf;
	dk_ioc.dki_lba = 0;
	dk_ioc.dki_length = len;
	if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) {
	free(buf);
	switch (errno) {
	case EIO:
	return (VT_EIO);
	case EINVAL:
	return (VT_EINVAL);
	default:
	return (VT_ERROR);
	}
	}
	free(buf);
	return (0);
	}

	/* make sure the user specified something reasonable */
	static int
	check_input(struct dk_gpt *vtoc)
	{
	int resv_part = -1;
	int i, j;
	diskaddr_t istart, jstart, isize, jsize, endsect;

	/*
	* Sanity-check the input (make sure no partitions overlap)
	*/
	for (i = 0; i < vtoc->efi_nparts; i++) {
	/* It can't be unassigned and have an actual size */
	if ((vtoc->efi_parts[i].p_tag == V_UNASSIGNED) &&
	(vtoc->efi_parts[i].p_size != 0)) {
	if (efi_debug) {
	(void) fprintf(stderr, "partition %d is "
	"\"unassigned\" but has a size of %llu",
	i, vtoc->efi_parts[i].p_size);
	}
	return (VT_EINVAL);
	}
	if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED) {
	if (uuid_is_null((uchar_t *)&vtoc->efi_parts[i].p_guid))
	continue;
	/* we have encountered an unknown uuid */
	vtoc->efi_parts[i].p_tag = 0xff;
	}
	if (vtoc->efi_parts[i].p_tag == V_RESERVED) {
	if (resv_part != -1) {
	if (efi_debug) {
	(void) fprintf(stderr, "found "
	"duplicate reserved partition "
	"at %d\n", i);
	}
	return (VT_EINVAL);
	}
	resv_part = i;
	}
	if ((vtoc->efi_parts[i].p_start < vtoc->efi_first_u_lba) \|\|
	(vtoc->efi_parts[i].p_start > vtoc->efi_last_u_lba)) {
	if (efi_debug) {
	(void) fprintf(stderr,
	"Partition %d starts at %llu. ",
	i,
	vtoc->efi_parts[i].p_start);
	(void) fprintf(stderr,
	"It must be between %llu and %llu.\n",
	vtoc->efi_first_u_lba,
	vtoc->efi_last_u_lba);
	}
	return (VT_EINVAL);
	}
	if ((vtoc->efi_parts[i].p_start +
	vtoc->efi_parts[i].p_size <
	vtoc->efi_first_u_lba) \|\|
	(vtoc->efi_parts[i].p_start +
	vtoc->efi_parts[i].p_size >
	vtoc->efi_last_u_lba + 1)) {
	if (efi_debug) {
	(void) fprintf(stderr,
	"Partition %d ends at %llu. ",
	i,
	vtoc->efi_parts[i].p_start +
	vtoc->efi_parts[i].p_size);
	(void) fprintf(stderr,
	"It must be between %llu and %llu.\n",
	vtoc->efi_first_u_lba,
	vtoc->efi_last_u_lba);
	}
	return (VT_EINVAL);
	}

	for (j = 0; j < vtoc->efi_nparts; j++) {
	isize = vtoc->efi_parts[i].p_size;
	jsize = vtoc->efi_parts[j].p_size;
	istart = vtoc->efi_parts[i].p_start;
	jstart = vtoc->efi_parts[j].p_start;
	if ((i != j) && (isize != 0) && (jsize != 0)) {
	endsect = jstart + jsize -1;
	if ((jstart <= istart) &&
	(istart <= endsect)) {
	if (efi_debug) {
	(void) fprintf(stderr,
	"Partition %d overlaps "
	"partition %d.", i, j);
	}
	return (VT_EINVAL);
	}
	}
	}
	}
	/* just a warning for now */
	if ((resv_part == -1) && efi_debug) {
	(void) fprintf(stderr,
	"no reserved partition found\n");
	}
	return (0);
	}

	static int
	call_blkpg_ioctl(int fd, int command, diskaddr_t start,
	diskaddr_t size, uint_t pno)
	{
	struct blkpg_ioctl_arg ioctl_arg;
	struct blkpg_partition linux_part;
	memset(&linux_part, 0, sizeof (linux_part));

	char *path = efi_get_devname(fd);
	if (path == NULL) {
	(void) fprintf(stderr, "failed to retrieve device name\n");
	return (VT_EINVAL);
	}

	linux_part.start = start;
	linux_part.length = size;
	linux_part.pno = pno;
	snprintf(linux_part.devname, BLKPG_DEVNAMELTH - 1, "%s%u", path, pno);
	linux_part.devname[BLKPG_DEVNAMELTH - 1] = '\0';
	free(path);

	ioctl_arg.op = command;
	ioctl_arg.flags = 0;
	ioctl_arg.datalen = sizeof (struct blkpg_partition);
	ioctl_arg.data = &linux_part;

	return (ioctl(fd, BLKPG, &ioctl_arg));
	}

	/*
	* add all the unallocated space to the current label
	*/
	int
	efi_use_whole_disk(int fd)
	{
	struct dk_gpt *efi_label = NULL;
	int rval;
	int i;
	uint_t resv_index = 0, data_index = 0;
	diskaddr_t resv_start = 0, data_start = 0;
	diskaddr_t data_size, limit, difference;
	boolean_t sync_needed = B_FALSE;
	uint_t nblocks;

	rval = efi_alloc_and_read(fd, &efi_label);
	if (rval < 0) {
	if (efi_label != NULL)
	efi_free(efi_label);
	return (rval);
	}

	/*
	* Find the last physically non-zero partition.
	* This should be the reserved partition.
	*/
	for (i = 0; i < efi_label->efi_nparts; i ++) {
	if (resv_start < efi_label->efi_parts[i].p_start) {
	resv_start = efi_label->efi_parts[i].p_start;
	resv_index = i;
	}
	}

	/*
	* Find the last physically non-zero partition before that.
	* This is the data partition.
	*/
	for (i = 0; i < resv_index; i ++) {
	if (data_start < efi_label->efi_parts[i].p_start) {
	data_start = efi_label->efi_parts[i].p_start;
	data_index = i;
	}
	}
	data_size = efi_label->efi_parts[data_index].p_size;

	/*
	* See the "efi_alloc_and_init" function for more information
	* about where this "nblocks" value comes from.
	*/
	nblocks = efi_label->efi_first_u_lba - 1;

	/*
	* Determine if the EFI label is out of sync. We check that:
	*
	* 1. the data partition ends at the limit we set, and
	* 2. the reserved partition starts at the limit we set.
	*
	* If either of these conditions is not met, then we need to
	* resync the EFI label.
	*
	* The limit is the last usable LBA, determined by the last LBA
	* and the first usable LBA fields on the EFI label of the disk
	* (see the lines directly above). Additionally, we factor in
	* EFI_MIN_RESV_SIZE (per its use in "zpool_label_disk") and
	* P2ALIGN it to ensure the partition boundaries are aligned
	* (for performance reasons). The alignment should match the
	* alignment used by the "zpool_label_disk" function.
	*/
	limit = P2ALIGN(efi_label->efi_last_lba - nblocks - EFI_MIN_RESV_SIZE,
	PARTITION_END_ALIGNMENT);
	if (data_start + data_size != limit \|\| resv_start != limit)
	sync_needed = B_TRUE;

	if (efi_debug && sync_needed)
	(void) fprintf(stderr, "efi_use_whole_disk: sync needed\n");

	/*
	* If alter_lba is 1, we are using the backup label.
	* Since we can locate the backup label by disk capacity,
	* there must be no unallocated space.
	*/
	if ((efi_label->efi_altern_lba == 1) \|\| (efi_label->efi_altern_lba
	>= efi_label->efi_last_lba && !sync_needed)) {
	if (efi_debug) {
	(void) fprintf(stderr,
	"efi_use_whole_disk: requested space not found\n");
	}
	efi_free(efi_label);
	return (VT_ENOSPC);
	}

	/*
	* Verify that we've found the reserved partition by checking
	* that it looks the way it did when we created it in zpool_label_disk.
	* If we've found the incorrect partition, then we know that this
	* device was reformatted and no longer is solely used by ZFS.
	*/
	if ((efi_label->efi_parts[resv_index].p_size != EFI_MIN_RESV_SIZE) \|\|
	(efi_label->efi_parts[resv_index].p_tag != V_RESERVED) \|\|
	(resv_index != 8)) {
	if (efi_debug) {
	(void) fprintf(stderr,
	"efi_use_whole_disk: wholedisk not available\n");
	}
	efi_free(efi_label);
	return (VT_ENOSPC);
	}

	if (data_start + data_size != resv_start) {
	if (efi_debug) {
	(void) fprintf(stderr,
	"efi_use_whole_disk: "
	"data_start (%lli) + "
	"data_size (%lli) != "
	"resv_start (%lli)\n",
	data_start, data_size, resv_start);
	}

	return (VT_EINVAL);
	}

	if (limit < resv_start) {
	if (efi_debug) {
	(void) fprintf(stderr,
	"efi_use_whole_disk: "
	"limit (%lli) < resv_start (%lli)\n",
	limit, resv_start);
	}

	return (VT_EINVAL);
	}

	difference = limit - resv_start;

	if (efi_debug)
	(void) fprintf(stderr,
	"efi_use_whole_disk: difference is %lli\n", difference);

	/*
	* Move the reserved partition. There is currently no data in
	* here except fabricated devids (which get generated via
	* efi_write()). So there is no need to copy data.
	*/
	efi_label->efi_parts[data_index].p_size += difference;
	efi_label->efi_parts[resv_index].p_start += difference;
	efi_label->efi_last_u_lba = efi_label->efi_last_lba - nblocks;

	/*
	* Rescanning the partition table in the kernel can result
	* in the device links to be removed (see comment in vdev_disk_open).
	* If BLKPG_RESIZE_PARTITION is available, then we can resize
	* the partition table online and avoid having to remove the device
	* links used by the pool. This provides a very deterministic
	* approach to resizing devices and does not require any
	* loops waiting for devices to reappear.
	*/
	#ifdef BLKPG_RESIZE_PARTITION
	/*
	* Delete the reserved partition since we're about to expand
	* the data partition and it would overlap with the reserved
	* partition.
	* NOTE: The starting index for the ioctl is 1 while for the
	* EFI partitions it's 0. For that reason we have to add one
	* whenever we make an ioctl call.
	*/
	rval = call_blkpg_ioctl(fd, BLKPG_DEL_PARTITION, 0, 0, resv_index + 1);
	if (rval != 0)
	goto out;

	/*
	* Expand the data partition
	*/
	rval = call_blkpg_ioctl(fd, BLKPG_RESIZE_PARTITION,
	efi_label->efi_parts[data_index].p_start * efi_label->efi_lbasize,
	efi_label->efi_parts[data_index].p_size * efi_label->efi_lbasize,
	data_index + 1);
	if (rval != 0) {
	(void) fprintf(stderr, "Unable to resize data "
	"partition: %d\n", rval);
	/*
	* Since we failed to resize, we need to reset the start
	* of the reserve partition and re-create it.
	*/
	efi_label->efi_parts[resv_index].p_start -= difference;
	}

	/*
	* Re-add the reserved partition. If we've expanded the data partition
	* then we'll move the reserve partition to the end of the data
	* partition. Otherwise, we'll recreate the partition in its original
	* location. Note that we do this as best-effort and ignore any
	* errors that may arise here. This will ensure that we finish writing
	* the EFI label.
	*/
	(void) call_blkpg_ioctl(fd, BLKPG_ADD_PARTITION,
	efi_label->efi_parts[resv_index].p_start * efi_label->efi_lbasize,
	efi_label->efi_parts[resv_index].p_size * efi_label->efi_lbasize,
	resv_index + 1);
	#endif

	/*
	* We're now ready to write the EFI label.
	*/
	if (rval == 0) {
	rval = efi_write(fd, efi_label);
	if (rval < 0 && efi_debug) {
	(void) fprintf(stderr, "efi_use_whole_disk:fail "
	"to write label, rval=%d\n", rval);
	}
	}

	out:
	efi_free(efi_label);
	return (rval);
	}

	/*
	* write EFI label and backup label
	*/
	int
	efi_write(int fd, struct dk_gpt *vtoc)
	{
	dk_efi_t dk_ioc;
	efi_gpt_t *efi;
	efi_gpe_t *efi_parts;
	int i, j;
	struct dk_cinfo dki_info;
	int rval;
	int md_flag = 0;
	int nblocks;
	diskaddr_t lba_backup_gpt_hdr;

	if ((rval = efi_get_info(fd, &dki_info)) != 0)
	return (rval);

	/* check if we are dealing with a metadevice */
	if ((strncmp(dki_info.dki_cname, "pseudo", 7) == 0) &&
	(strncmp(dki_info.dki_dname, "md", 3) == 0)) {
	md_flag = 1;
	}

	if (check_input(vtoc)) {
	/*
	* not valid; if it's a metadevice just pass it down
	* because SVM will do its own checking
	*/
	if (md_flag == 0) {
	return (VT_EINVAL);
	}
	}

	dk_ioc.dki_lba = 1;
	if (NBLOCKS(vtoc->efi_nparts, vtoc->efi_lbasize) < 34) {
	dk_ioc.dki_length = EFI_MIN_ARRAY_SIZE + vtoc->efi_lbasize;
	} else {
	dk_ioc.dki_length = NBLOCKS(vtoc->efi_nparts,
	vtoc->efi_lbasize) *
	vtoc->efi_lbasize;
	}

	/*
	* the number of blocks occupied by GUID partition entry array
	*/
	nblocks = dk_ioc.dki_length / vtoc->efi_lbasize - 1;

	/*
	* Backup GPT header is located on the block after GUID
	* partition entry array. Here, we calculate the address
	* for backup GPT header.
	*/
	lba_backup_gpt_hdr = vtoc->efi_last_u_lba + 1 + nblocks;
	if (posix_memalign((void **)&dk_ioc.dki_data,
	vtoc->efi_lbasize, dk_ioc.dki_length))
	return (VT_ERROR);

	memset(dk_ioc.dki_data, 0, dk_ioc.dki_length);
	efi = dk_ioc.dki_data;

	/* stuff user's input into EFI struct */
	efi->efi_gpt_Signature = LE_64(EFI_SIGNATURE);
	efi->efi_gpt_Revision = LE_32(vtoc->efi_version); /* 0x02000100 */
	efi->efi_gpt_HeaderSize = LE_32(sizeof (struct efi_gpt) - LEN_EFI_PAD);
	efi->efi_gpt_Reserved1 = 0;
	efi->efi_gpt_MyLBA = LE_64(1ULL);
	efi->efi_gpt_AlternateLBA = LE_64(lba_backup_gpt_hdr);
	efi->efi_gpt_FirstUsableLBA = LE_64(vtoc->efi_first_u_lba);
	efi->efi_gpt_LastUsableLBA = LE_64(vtoc->efi_last_u_lba);
	efi->efi_gpt_PartitionEntryLBA = LE_64(2ULL);
	efi->efi_gpt_NumberOfPartitionEntries = LE_32(vtoc->efi_nparts);
	efi->efi_gpt_SizeOfPartitionEntry = LE_32(sizeof (struct efi_gpe));
	UUID_LE_CONVERT(efi->efi_gpt_DiskGUID, vtoc->efi_disk_uguid);

	/* LINTED -- always longlong aligned */
	efi_parts = (efi_gpe_t )((char )dk_ioc.dki_data + vtoc->efi_lbasize);

	for (i = 0; i < vtoc->efi_nparts; i++) {
	for (j = 0;
	j < sizeof (conversion_array) /
	sizeof (struct uuid_to_ptag); j++) {

	if (vtoc->efi_parts[i].p_tag == j) {
	UUID_LE_CONVERT(
	efi_parts[i].efi_gpe_PartitionTypeGUID,
	conversion_array[j].uuid);
	break;
	}
	}

	if (j == sizeof (conversion_array) /
	sizeof (struct uuid_to_ptag)) {
	/*
	* If we didn't have a matching uuid match, bail here.
	* Don't write a label with unknown uuid.
	*/
	if (efi_debug) {
	(void) fprintf(stderr,
	"Unknown uuid for p_tag %d\n",
	vtoc->efi_parts[i].p_tag);
	}
	return (VT_EINVAL);
	}

	/* Zero's should be written for empty partitions */
	if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED)
	continue;

	efi_parts[i].efi_gpe_StartingLBA =
	LE_64(vtoc->efi_parts[i].p_start);
	efi_parts[i].efi_gpe_EndingLBA =
	LE_64(vtoc->efi_parts[i].p_start +
	vtoc->efi_parts[i].p_size - 1);
	efi_parts[i].efi_gpe_Attributes.PartitionAttrs =
	LE_16(vtoc->efi_parts[i].p_flag);
	for (j = 0; j < EFI_PART_NAME_LEN; j++) {
	efi_parts[i].efi_gpe_PartitionName[j] =
	LE_16((ushort_t)vtoc->efi_parts[i].p_name[j]);
	}
	if ((vtoc->efi_parts[i].p_tag != V_UNASSIGNED) &&
	uuid_is_null((uchar_t *)&vtoc->efi_parts[i].p_uguid)) {
	(void) uuid_generate((uchar_t *)
	&vtoc->efi_parts[i].p_uguid);
	}
	bcopy(&vtoc->efi_parts[i].p_uguid,
	&efi_parts[i].efi_gpe_UniquePartitionGUID,
	sizeof (uuid_t));
	}
	efi->efi_gpt_PartitionEntryArrayCRC32 =
	LE_32(efi_crc32((unsigned char *)efi_parts,
	vtoc->efi_nparts * (int)sizeof (struct efi_gpe)));
	efi->efi_gpt_HeaderCRC32 =
	LE_32(efi_crc32((unsigned char *)efi,
	LE_32(efi->efi_gpt_HeaderSize)));

	if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) {
	free(dk_ioc.dki_data);
	switch (errno) {
	case EIO:
	return (VT_EIO);
	case EINVAL:
	return (VT_EINVAL);
	default:
	return (VT_ERROR);
	}
	}
	/* if it's a metadevice we're done */
	if (md_flag) {
	free(dk_ioc.dki_data);
	return (0);
	}

	/* write backup partition array */
	dk_ioc.dki_lba = vtoc->efi_last_u_lba + 1;
	dk_ioc.dki_length -= vtoc->efi_lbasize;
	/* LINTED */
	dk_ioc.dki_data = (efi_gpt_t )((char )dk_ioc.dki_data +
	vtoc->efi_lbasize);

	if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) {
	/*
	* we wrote the primary label okay, so don't fail
	*/
	if (efi_debug) {
	(void) fprintf(stderr,
	"write of backup partitions to block %llu "
	"failed, errno %d\n",
	vtoc->efi_last_u_lba + 1,
	errno);
	}
	}
	/*
	* now swap MyLBA and AlternateLBA fields and write backup
	* partition table header
	*/
	dk_ioc.dki_lba = lba_backup_gpt_hdr;
	dk_ioc.dki_length = vtoc->efi_lbasize;
	/* LINTED */
	dk_ioc.dki_data = (efi_gpt_t )((char )dk_ioc.dki_data -
	vtoc->efi_lbasize);
	efi->efi_gpt_AlternateLBA = LE_64(1ULL);
	efi->efi_gpt_MyLBA = LE_64(lba_backup_gpt_hdr);
	efi->efi_gpt_PartitionEntryLBA = LE_64(vtoc->efi_last_u_lba + 1);
	efi->efi_gpt_HeaderCRC32 = 0;
	efi->efi_gpt_HeaderCRC32 =
	LE_32(efi_crc32((unsigned char *)dk_ioc.dki_data,
	LE_32(efi->efi_gpt_HeaderSize)));

	if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) {
	if (efi_debug) {
	(void) fprintf(stderr,
	"write of backup header to block %llu failed, "
	"errno %d\n",
	lba_backup_gpt_hdr,
	errno);
	}
	}
	/* write the PMBR */
	(void) write_pmbr(fd, vtoc);
	free(dk_ioc.dki_data);

	return (0);
	}

	void
	efi_free(struct dk_gpt *ptr)
	{
	free(ptr);
	}

	/*
	* Input: File descriptor
	* Output: 1 if disk has an EFI label, or > 2TB with no VTOC or legacy MBR.
	* Otherwise 0.
	*/
	int
	efi_type(int fd)
	{
	#if 0
	struct vtoc vtoc;
	struct extvtoc extvtoc;

	if (ioctl(fd, DKIOCGEXTVTOC, &extvtoc) == -1) {
	if (errno == ENOTSUP)
	return (1);
	else if (errno == ENOTTY) {
	if (ioctl(fd, DKIOCGVTOC, &vtoc) == -1)
	if (errno == ENOTSUP)
	return (1);
	}
	}
	return (0);
	#else
	return (ENOSYS);
	#endif
	}

	void
	efi_err_check(struct dk_gpt *vtoc)
	{
	int resv_part = -1;
	int i, j;
	diskaddr_t istart, jstart, isize, jsize, endsect;
	int overlap = 0;

	/*
	* make sure no partitions overlap
	*/
	for (i = 0; i < vtoc->efi_nparts; i++) {
	/* It can't be unassigned and have an actual size */
	if ((vtoc->efi_parts[i].p_tag == V_UNASSIGNED) &&
	(vtoc->efi_parts[i].p_size != 0)) {
	(void) fprintf(stderr,
	"partition %d is \"unassigned\" but has a size "
	"of %llu\n", i, vtoc->efi_parts[i].p_size);
	}
	if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED) {
	continue;
	}
	if (vtoc->efi_parts[i].p_tag == V_RESERVED) {
	if (resv_part != -1) {
	(void) fprintf(stderr,
	"found duplicate reserved partition at "
	"%d\n", i);
	}
	resv_part = i;
	if (vtoc->efi_parts[i].p_size != EFI_MIN_RESV_SIZE)
	(void) fprintf(stderr,
	"Warning: reserved partition size must "
	"be %d sectors\n", EFI_MIN_RESV_SIZE);
	}
	if ((vtoc->efi_parts[i].p_start < vtoc->efi_first_u_lba) \|\|
	(vtoc->efi_parts[i].p_start > vtoc->efi_last_u_lba)) {
	(void) fprintf(stderr,
	"Partition %d starts at %llu\n",
	i,
	vtoc->efi_parts[i].p_start);
	(void) fprintf(stderr,
	"It must be between %llu and %llu.\n",
	vtoc->efi_first_u_lba,
	vtoc->efi_last_u_lba);
	}
	if ((vtoc->efi_parts[i].p_start +
	vtoc->efi_parts[i].p_size <
	vtoc->efi_first_u_lba) \|\|
	(vtoc->efi_parts[i].p_start +
	vtoc->efi_parts[i].p_size >
	vtoc->efi_last_u_lba + 1)) {
	(void) fprintf(stderr,
	"Partition %d ends at %llu\n",
	i,
	vtoc->efi_parts[i].p_start +
	vtoc->efi_parts[i].p_size);
	(void) fprintf(stderr,
	"It must be between %llu and %llu.\n",
	vtoc->efi_first_u_lba,
	vtoc->efi_last_u_lba);
	}

	for (j = 0; j < vtoc->efi_nparts; j++) {
	isize = vtoc->efi_parts[i].p_size;
	jsize = vtoc->efi_parts[j].p_size;
	istart = vtoc->efi_parts[i].p_start;
	jstart = vtoc->efi_parts[j].p_start;
	if ((i != j) && (isize != 0) && (jsize != 0)) {
	endsect = jstart + jsize -1;
	if ((jstart <= istart) &&
	(istart <= endsect)) {
	if (!overlap) {
	(void) fprintf(stderr,
	"label error: EFI Labels do not "
	"support overlapping partitions\n");
	}
	(void) fprintf(stderr,
	"Partition %d overlaps partition "
	"%d.\n", i, j);
	overlap = 1;
	}
	}
	}
	}
	/* make sure there is a reserved partition */
	if (resv_part == -1) {
	(void) fprintf(stderr,
	"no reserved partition found\n");
	}
	}
	-
	-/*
	- * We need to get information necessary to construct a new efi
	- * label type
	- */
	-int
	-efi_auto_sense(int fd, struct dk_gpt **vtoc)
	-{
	-
	- int i;
	-
	- /*
	- * Now build the default partition table
	- */
	- if (efi_alloc_and_init(fd, EFI_NUMPAR, vtoc) != 0) {
	- if (efi_debug) {
	- (void) fprintf(stderr, "efi_alloc_and_init failed.\n");
	- }
	- return (-1);
	- }
	-
	- for (i = 0; i < MIN((*vtoc)->efi_nparts, V_NUMPAR); i++) {
	- (*vtoc)->efi_parts[i].p_tag = default_vtoc_map[i].p_tag;
	- (*vtoc)->efi_parts[i].p_flag = default_vtoc_map[i].p_flag;
	- (*vtoc)->efi_parts[i].p_start = 0;
	- (*vtoc)->efi_parts[i].p_size = 0;
	- }
	- /*
	- * Make constants first
	- * and variable partitions later
	- */
	-
	- /* root partition - s0 128 MB */
	- (*vtoc)->efi_parts[0].p_start = 34;
	- (*vtoc)->efi_parts[0].p_size = 262144;
	-
	- /* partition - s1 128 MB */
	- (*vtoc)->efi_parts[1].p_start = 262178;
	- (*vtoc)->efi_parts[1].p_size = 262144;
	-
	- /* partition -s2 is NOT the Backup disk */
	- (*vtoc)->efi_parts[2].p_tag = V_UNASSIGNED;
	-
	- /* partition -s6 /usr partition - HOG */
	- (*vtoc)->efi_parts[6].p_start = 524322;
	- (vtoc)->efi_parts[6].p_size = (vtoc)->efi_last_u_lba - 524322
	- - (1024 * 16);
	-
	- /* efi reserved partition - s9 16K */
	- (vtoc)->efi_parts[8].p_start = (vtoc)->efi_last_u_lba - (1024 * 16);
	- (vtoc)->efi_parts[8].p_size = (1024 16);
	- (*vtoc)->efi_parts[8].p_tag = V_RESERVED;
	- return (0);
	-}
	diff --git a/sys/contrib/openzfs/lib/libnvpair/Makefile.am b/sys/contrib/openzfs/lib/libnvpair/Makefile.am
	index a3e1fa307f7c..7b9ebebe7906 100644
	--- a/sys/contrib/openzfs/lib/libnvpair/Makefile.am
	+++ b/sys/contrib/openzfs/lib/libnvpair/Makefile.am
	@@ -1,47 +1,48 @@
	include $(top_srcdir)/config/Rules.am

	VPATH = \
	$(top_srcdir)/module/nvpair \
	$(top_srcdir)/lib/libnvpair

	# Includes kernel code, generate warnings for large stack frames
	# and required CFLAGS for libtirpc
	AM_CFLAGS += $(FRAME_LARGER_THAN) $(LIBTIRPC_CFLAGS)
	+AM_CFLAGS += -fvisibility=hidden

	lib_LTLIBRARIES = libnvpair.la

	include $(top_srcdir)/config/Abigail.am

	USER_C = \
	libnvpair.c \
	libnvpair_json.c \
	nvpair_alloc_system.c

	KERNEL_C = \
	nvpair_alloc_fixed.c \
	nvpair.c \
	fnvpair.c

	dist_libnvpair_la_SOURCES = \
	$(USER_C)

	nodist_libnvpair_la_SOURCES = \
	$(KERNEL_C)

	libnvpair_la_LIBADD = \
	$(abs_top_builddir)/lib/libspl/libspl_assert.la

	libnvpair_la_LIBADD += $(LIBTIRPC_LIBS) $(LTLIBINTL)

	libnvpair_la_LDFLAGS =

	if !ASAN_ENABLED
	libnvpair_la_LDFLAGS += -Wl,-z,defs
	endif

	libnvpair_la_LDFLAGS += -version-info 3:0:0

	include $(top_srcdir)/config/CppCheck.am

	# Library ABI
	EXTRA_DIST = libnvpair.abi libnvpair.suppr
	diff --git a/sys/contrib/openzfs/lib/libnvpair/libnvpair.abi b/sys/contrib/openzfs/lib/libnvpair/libnvpair.abi
	index 697a67b7fc61..8c503fecd152 100644
	--- a/sys/contrib/openzfs/lib/libnvpair/libnvpair.abi
	+++ b/sys/contrib/openzfs/lib/libnvpair/libnvpair.abi
	@@ -1,3648 +1,3636 @@
	<abi-corpus path='libnvpair.so' architecture='elf-amd-x86_64' soname='libnvpair.so.3'>
	<elf-needed>
	<dependency name='libc.so.6'/>
	</elf-needed>
	<elf-function-symbols>
	<elf-symbol name='dump_nvlist' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_boolean' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_boolean_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_boolean_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_byte_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_int16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_int16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_int32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_int32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_int64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_int64_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_int8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_int8_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_nvlist' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_nvlist_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_nvpair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_string_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_uint16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_uint16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_uint32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_uint32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_uint64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_uint64_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_uint8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_add_uint8_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_dup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_boolean' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_boolean_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_boolean_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_byte_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_int16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_int16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_int32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_int32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_int64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_int64_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_int8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_int8_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_nvlist' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_nvpair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_uint16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_uint16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_uint32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_uint32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_uint64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_uint64_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_uint8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_lookup_uint8_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_merge' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_num_pairs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_pack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_pack_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_remove_nvpair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvlist_unpack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvpair_value_boolean_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvpair_value_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvpair_value_int16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvpair_value_int32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvpair_value_int64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvpair_value_int8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvpair_value_nvlist' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvpair_value_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvpair_value_uint16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvpair_value_uint32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvpair_value_uint64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fnvpair_value_uint8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libspl_assertf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nv_alloc_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nv_alloc_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nv_alloc_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_boolean' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_boolean_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_boolean_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_byte_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_hrtime' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_int16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_int16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_int32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_int32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_int64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_int64_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_int8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_int8_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_nvlist' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_nvlist_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_nvpair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_string_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_uint16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_uint16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_uint32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_uint32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_uint64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_uint64_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_uint8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_add_uint8_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_dup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_empty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_exists' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_boolean' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_boolean_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_boolean_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_byte_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_hrtime' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_int16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_int16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_int32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_int32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_int64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_int64_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_int8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_int8_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_nv_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_nvlist' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_nvlist_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_nvpair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_nvpair_embedded_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_pairs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_string_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_uint16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_uint16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_uint32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_uint32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_uint64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_uint64_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_uint8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_lookup_uint8_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_merge' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_next_nvpair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_nvflag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_pack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_prev_nvpair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_print' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_print_json' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_prt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_prtctl_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_prtctl_dofmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_prtctl_doindent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_prtctl_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_prtctl_getdest' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_prtctl_setdest' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_prtctl_setfmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_prtctl_setindent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_prtctlop_boolean' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='nvlist_prtctlop_boolean_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
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	- <typedef-decl name='nvlist_prtctl_t' type-id='type-id-63' filepath='../../include/libnvpair.h' line='84' column='1' id='type-id-158'/>
	- <function-decl name='nvlist_prtctl_setdest' mangled-name='nvlist_prtctl_setdest' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='312' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctl_setdest'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='312' column='1'/>
	- <parameter type-id='type-id-3' name='fp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='312' column='1'/>
	+ <typedef-decl name='nvlist_prtctl_t' type-id='type-id-63' id='type-id-158'/>
	+ <function-decl name='nvlist_prtctl_setdest' mangled-name='nvlist_prtctl_setdest' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctl_setdest'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-3' name='fp'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_prtctl_getdest' mangled-name='nvlist_prtctl_getdest' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='318' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctl_getdest'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='318' column='1'/>
	+ <function-decl name='nvlist_prtctl_getdest' mangled-name='nvlist_prtctl_getdest' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctl_getdest'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	<return type-id='type-id-3'/>
	</function-decl>
	- <function-decl name='nvlist_prtctl_setindent' mangled-name='nvlist_prtctl_setindent' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='325' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctl_setindent'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='325' column='1'/>
	- <parameter type-id='type-id-4' name='mode' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='325' column='1'/>
	- <parameter type-id='type-id-5' name='start' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='326' column='1'/>
	- <parameter type-id='type-id-5' name='inc' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='326' column='1'/>
	+ <function-decl name='nvlist_prtctl_setindent' mangled-name='nvlist_prtctl_setindent' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctl_setindent'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-4' name='mode'/>
	+ <parameter type-id='type-id-5' name='start'/>
	+ <parameter type-id='type-id-5' name='inc'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_prtctl_doindent' mangled-name='nvlist_prtctl_doindent' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='343' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctl_doindent'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='343' column='1'/>
	- <parameter type-id='type-id-5' name='onemore' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='343' column='1'/>
	+ <function-decl name='nvlist_prtctl_doindent' mangled-name='nvlist_prtctl_doindent' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctl_doindent'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-5' name='onemore'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <enum-decl name='nvlist_prtctl_fmt' filepath='../../include/libnvpair.h' line='104' column='1' id='type-id-159'>
	+ <enum-decl name='nvlist_prtctl_fmt' id='type-id-159'>
	<underlying-type type-id='type-id-32'/>
	<enumerator name='NVLIST_FMT_MEMBER_NAME' value='0'/>
	<enumerator name='NVLIST_FMT_MEMBER_POSTAMBLE' value='1'/>
	<enumerator name='NVLIST_FMT_BTWN_ARRAY' value='2'/>
	</enum-decl>
	- <function-decl name='nvlist_prtctl_setfmt' mangled-name='nvlist_prtctl_setfmt' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='350' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctl_setfmt'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='350' column='1'/>
	- <parameter type-id='type-id-159' name='which' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='350' column='1'/>
	- <parameter type-id='type-id-6' name='fmt' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='351' column='1'/>
	+ <function-decl name='nvlist_prtctl_setfmt' mangled-name='nvlist_prtctl_setfmt' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctl_setfmt'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-159' name='which'/>
	+ <parameter type-id='type-id-6' name='fmt'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_prtctl_dofmt' mangled-name='nvlist_prtctl_dofmt' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='383' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctl_dofmt'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='383' column='1'/>
	- <parameter type-id='type-id-159' name='which' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='383' column='1'/>
	+ <function-decl name='nvlist_prtctl_dofmt' mangled-name='nvlist_prtctl_dofmt' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctl_dofmt'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-159' name='which'/>
	<parameter is-variadic='yes'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-160' size-in-bits='64' id='type-id-161'/>
	- <function-decl name='nvlist_prtctlop_boolean' mangled-name='nvlist_prtctlop_boolean' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='430' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_boolean'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='430' column='1'/>
	- <parameter type-id='type-id-161' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='430' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='430' column='1'/>
	+ <function-decl name='nvlist_prtctlop_boolean' mangled-name='nvlist_prtctlop_boolean' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_boolean'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-161' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-162' size-in-bits='64' id='type-id-163'/>
	- <function-decl name='nvlist_prtctlop_boolean_value' mangled-name='nvlist_prtctlop_boolean_value' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='431' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_boolean_value'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='431' column='1'/>
	- <parameter type-id='type-id-163' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='431' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='431' column='1'/>
	+ <function-decl name='nvlist_prtctlop_boolean_value' mangled-name='nvlist_prtctlop_boolean_value' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_boolean_value'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-163' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-164' size-in-bits='64' id='type-id-165'/>
	- <function-decl name='nvlist_prtctlop_byte' mangled-name='nvlist_prtctlop_byte' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='432' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_byte'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='432' column='1'/>
	- <parameter type-id='type-id-165' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='432' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='432' column='1'/>
	+ <function-decl name='nvlist_prtctlop_byte' mangled-name='nvlist_prtctlop_byte' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_byte'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-165' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-166' size-in-bits='64' id='type-id-167'/>
	- <function-decl name='nvlist_prtctlop_int8' mangled-name='nvlist_prtctlop_int8' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='433' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_int8'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='433' column='1'/>
	- <parameter type-id='type-id-167' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='433' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='433' column='1'/>
	+ <function-decl name='nvlist_prtctlop_int8' mangled-name='nvlist_prtctlop_int8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_int8'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-167' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-168' size-in-bits='64' id='type-id-169'/>
	- <function-decl name='nvlist_prtctlop_uint8' mangled-name='nvlist_prtctlop_uint8' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='434' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_uint8'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='434' column='1'/>
	- <parameter type-id='type-id-169' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='434' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='434' column='1'/>
	+ <function-decl name='nvlist_prtctlop_uint8' mangled-name='nvlist_prtctlop_uint8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_uint8'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-169' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-170' size-in-bits='64' id='type-id-171'/>
	- <function-decl name='nvlist_prtctlop_int16' mangled-name='nvlist_prtctlop_int16' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='435' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_int16'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='435' column='1'/>
	- <parameter type-id='type-id-171' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='435' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='435' column='1'/>
	+ <function-decl name='nvlist_prtctlop_int16' mangled-name='nvlist_prtctlop_int16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_int16'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-171' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-172' size-in-bits='64' id='type-id-173'/>
	- <function-decl name='nvlist_prtctlop_uint16' mangled-name='nvlist_prtctlop_uint16' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='436' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_uint16'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='436' column='1'/>
	- <parameter type-id='type-id-173' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='436' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='436' column='1'/>
	+ <function-decl name='nvlist_prtctlop_uint16' mangled-name='nvlist_prtctlop_uint16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_uint16'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-173' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-174' size-in-bits='64' id='type-id-175'/>
	- <function-decl name='nvlist_prtctlop_int32' mangled-name='nvlist_prtctlop_int32' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='437' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_int32'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='437' column='1'/>
	- <parameter type-id='type-id-175' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='437' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='437' column='1'/>
	+ <function-decl name='nvlist_prtctlop_int32' mangled-name='nvlist_prtctlop_int32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_int32'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-175' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-176' size-in-bits='64' id='type-id-177'/>
	- <function-decl name='nvlist_prtctlop_uint32' mangled-name='nvlist_prtctlop_uint32' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='438' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_uint32'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='438' column='1'/>
	- <parameter type-id='type-id-177' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='438' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='438' column='1'/>
	+ <function-decl name='nvlist_prtctlop_uint32' mangled-name='nvlist_prtctlop_uint32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_uint32'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-177' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-178' size-in-bits='64' id='type-id-179'/>
	- <function-decl name='nvlist_prtctlop_int64' mangled-name='nvlist_prtctlop_int64' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='439' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_int64'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='439' column='1'/>
	- <parameter type-id='type-id-179' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='439' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='439' column='1'/>
	+ <function-decl name='nvlist_prtctlop_int64' mangled-name='nvlist_prtctlop_int64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_int64'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-179' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-180' size-in-bits='64' id='type-id-181'/>
	- <function-decl name='nvlist_prtctlop_uint64' mangled-name='nvlist_prtctlop_uint64' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='440' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_uint64'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='440' column='1'/>
	- <parameter type-id='type-id-181' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='440' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='440' column='1'/>
	+ <function-decl name='nvlist_prtctlop_uint64' mangled-name='nvlist_prtctlop_uint64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_uint64'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-181' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-182' size-in-bits='64' id='type-id-183'/>
	- <function-decl name='nvlist_prtctlop_double' mangled-name='nvlist_prtctlop_double' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='441' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_double'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='441' column='1'/>
	- <parameter type-id='type-id-183' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='441' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='441' column='1'/>
	+ <function-decl name='nvlist_prtctlop_double' mangled-name='nvlist_prtctlop_double' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_double'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-183' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-184' size-in-bits='64' id='type-id-185'/>
	- <function-decl name='nvlist_prtctlop_string' mangled-name='nvlist_prtctlop_string' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='442' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_string'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='442' column='1'/>
	- <parameter type-id='type-id-185' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='442' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='442' column='1'/>
	+ <function-decl name='nvlist_prtctlop_string' mangled-name='nvlist_prtctlop_string' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_string'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-185' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-186' size-in-bits='64' id='type-id-187'/>
	- <function-decl name='nvlist_prtctlop_hrtime' mangled-name='nvlist_prtctlop_hrtime' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='443' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_hrtime'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='443' column='1'/>
	- <parameter type-id='type-id-187' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='443' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='443' column='1'/>
	+ <function-decl name='nvlist_prtctlop_hrtime' mangled-name='nvlist_prtctlop_hrtime' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_hrtime'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-187' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-188' size-in-bits='64' id='type-id-189'/>
	- <function-decl name='nvlist_prtctlop_nvlist' mangled-name='nvlist_prtctlop_nvlist' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='444' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_nvlist'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='444' column='1'/>
	- <parameter type-id='type-id-189' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='444' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='444' column='1'/>
	+ <function-decl name='nvlist_prtctlop_nvlist' mangled-name='nvlist_prtctlop_nvlist' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_nvlist'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-189' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-190' size-in-bits='64' id='type-id-191'/>
	- <function-decl name='nvlist_prtctlop_boolean_array' mangled-name='nvlist_prtctlop_boolean_array' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='456' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_boolean_array'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='456' column='1'/>
	- <parameter type-id='type-id-191' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='456' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='456' column='1'/>
	+ <function-decl name='nvlist_prtctlop_boolean_array' mangled-name='nvlist_prtctlop_boolean_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_boolean_array'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-191' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-192' size-in-bits='64' id='type-id-193'/>
	- <function-decl name='nvlist_prtctlop_byte_array' mangled-name='nvlist_prtctlop_byte_array' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='457' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_byte_array'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='457' column='1'/>
	- <parameter type-id='type-id-193' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='457' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='457' column='1'/>
	+ <function-decl name='nvlist_prtctlop_byte_array' mangled-name='nvlist_prtctlop_byte_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_byte_array'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-193' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-194' size-in-bits='64' id='type-id-195'/>
	- <function-decl name='nvlist_prtctlop_int8_array' mangled-name='nvlist_prtctlop_int8_array' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='458' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_int8_array'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='458' column='1'/>
	- <parameter type-id='type-id-195' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='458' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='458' column='1'/>
	+ <function-decl name='nvlist_prtctlop_int8_array' mangled-name='nvlist_prtctlop_int8_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_int8_array'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-195' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-196' size-in-bits='64' id='type-id-197'/>
	- <function-decl name='nvlist_prtctlop_uint8_array' mangled-name='nvlist_prtctlop_uint8_array' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='459' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_uint8_array'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='459' column='1'/>
	- <parameter type-id='type-id-197' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='459' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='459' column='1'/>
	+ <function-decl name='nvlist_prtctlop_uint8_array' mangled-name='nvlist_prtctlop_uint8_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_uint8_array'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-197' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-198' size-in-bits='64' id='type-id-199'/>
	- <function-decl name='nvlist_prtctlop_int16_array' mangled-name='nvlist_prtctlop_int16_array' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='460' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_int16_array'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='460' column='1'/>
	- <parameter type-id='type-id-199' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='460' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='460' column='1'/>
	+ <function-decl name='nvlist_prtctlop_int16_array' mangled-name='nvlist_prtctlop_int16_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_int16_array'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-199' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-200' size-in-bits='64' id='type-id-201'/>
	- <function-decl name='nvlist_prtctlop_uint16_array' mangled-name='nvlist_prtctlop_uint16_array' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='461' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_uint16_array'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='461' column='1'/>
	- <parameter type-id='type-id-201' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='461' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='461' column='1'/>
	+ <function-decl name='nvlist_prtctlop_uint16_array' mangled-name='nvlist_prtctlop_uint16_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_uint16_array'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-201' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-202' size-in-bits='64' id='type-id-203'/>
	- <function-decl name='nvlist_prtctlop_int32_array' mangled-name='nvlist_prtctlop_int32_array' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='462' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_int32_array'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='462' column='1'/>
	- <parameter type-id='type-id-203' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='462' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='462' column='1'/>
	+ <function-decl name='nvlist_prtctlop_int32_array' mangled-name='nvlist_prtctlop_int32_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_int32_array'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-203' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-204' size-in-bits='64' id='type-id-205'/>
	- <function-decl name='nvlist_prtctlop_uint32_array' mangled-name='nvlist_prtctlop_uint32_array' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='463' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_uint32_array'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='463' column='1'/>
	- <parameter type-id='type-id-205' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='463' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='463' column='1'/>
	+ <function-decl name='nvlist_prtctlop_uint32_array' mangled-name='nvlist_prtctlop_uint32_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_uint32_array'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-205' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-206' size-in-bits='64' id='type-id-207'/>
	- <function-decl name='nvlist_prtctlop_int64_array' mangled-name='nvlist_prtctlop_int64_array' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='464' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_int64_array'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='464' column='1'/>
	- <parameter type-id='type-id-207' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='464' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='464' column='1'/>
	+ <function-decl name='nvlist_prtctlop_int64_array' mangled-name='nvlist_prtctlop_int64_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_int64_array'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-207' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-208' size-in-bits='64' id='type-id-209'/>
	- <function-decl name='nvlist_prtctlop_uint64_array' mangled-name='nvlist_prtctlop_uint64_array' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='465' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_uint64_array'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='465' column='1'/>
	- <parameter type-id='type-id-209' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='465' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='465' column='1'/>
	+ <function-decl name='nvlist_prtctlop_uint64_array' mangled-name='nvlist_prtctlop_uint64_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_uint64_array'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-209' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-210' size-in-bits='64' id='type-id-211'/>
	- <function-decl name='nvlist_prtctlop_string_array' mangled-name='nvlist_prtctlop_string_array' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_string_array'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='466' column='1'/>
	- <parameter type-id='type-id-211' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='466' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='466' column='1'/>
	+ <function-decl name='nvlist_prtctlop_string_array' mangled-name='nvlist_prtctlop_string_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_string_array'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-211' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-212' size-in-bits='64' id='type-id-213'/>
	- <function-decl name='nvlist_prtctlop_nvlist_array' mangled-name='nvlist_prtctlop_nvlist_array' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='467' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_nvlist_array'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='467' column='1'/>
	- <parameter type-id='type-id-213' name='func' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='467' column='1'/>
	- <parameter type-id='type-id-19' name='private' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='467' column='1'/>
	+ <function-decl name='nvlist_prtctlop_nvlist_array' mangled-name='nvlist_prtctlop_nvlist_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctlop_nvlist_array'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	+ <parameter type-id='type-id-213' name='func'/>
	+ <parameter type-id='type-id-19' name='private'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_prtctl_alloc' mangled-name='nvlist_prtctl_alloc' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='527' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctl_alloc'>
	+ <function-decl name='nvlist_prtctl_alloc' mangled-name='nvlist_prtctl_alloc' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctl_alloc'>
	<return type-id='type-id-158'/>
	</function-decl>
	- <function-decl name='nvlist_prtctl_free' mangled-name='nvlist_prtctl_free' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='546' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctl_free'>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='546' column='1'/>
	+ <function-decl name='nvlist_prtctl_free' mangled-name='nvlist_prtctl_free' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prtctl_free'>
	+ <parameter type-id='type-id-158' name='pctl'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_print' mangled-name='nvlist_print' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='757' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_print'>
	- <parameter type-id='type-id-3' name='fp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='757' column='1'/>
	- <parameter type-id='type-id-73' name='nvl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='757' column='1'/>
	+ <function-decl name='nvlist_print' mangled-name='nvlist_print' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_print'>
	+ <parameter type-id='type-id-3' name='fp'/>
	+ <parameter type-id='type-id-73' name='nvl'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <class-decl name='nvpair' size-in-bits='128' is-struct='yes' visibility='default' filepath='../../include/sys/nvpair.h' line='73' column='1' id='type-id-214'>
	+ <class-decl name='nvpair' size-in-bits='128' is-struct='yes' visibility='default' id='type-id-214'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='nvp_size' type-id='type-id-65' visibility='default' filepath='../../include/sys/nvpair.h' line='74' column='1'/>
	+ <var-decl name='nvp_size' type-id='type-id-65' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='32'>
	- <var-decl name='nvp_name_sz' type-id='type-id-94' visibility='default' filepath='../../include/sys/nvpair.h' line='75' column='1'/>
	+ <var-decl name='nvp_name_sz' type-id='type-id-94' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='48'>
	- <var-decl name='nvp_reserve' type-id='type-id-94' visibility='default' filepath='../../include/sys/nvpair.h' line='76' column='1'/>
	+ <var-decl name='nvp_reserve' type-id='type-id-94' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	- <var-decl name='nvp_value_elem' type-id='type-id-65' visibility='default' filepath='../../include/sys/nvpair.h' line='77' column='1'/>
	+ <var-decl name='nvp_value_elem' type-id='type-id-65' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='96'>
	- <var-decl name='nvp_type' type-id='type-id-215' visibility='default' filepath='../../include/sys/nvpair.h' line='78' column='1'/>
	+ <var-decl name='nvp_type' type-id='type-id-215' visibility='default'/>
	</data-member>
	</class-decl>
	- <enum-decl name='__anonymous_enum__' is-anonymous='yes' filepath='../../include/sys/nvpair.h' line='37' column='1' id='type-id-216'>
	+ <enum-decl name='__anonymous_enum__' is-anonymous='yes' id='type-id-216'>
	<underlying-type type-id='type-id-32'/>
	<enumerator name='DATA_TYPE_DONTCARE' value='-1'/>
	<enumerator name='DATA_TYPE_UNKNOWN' value='0'/>
	<enumerator name='DATA_TYPE_BOOLEAN' value='1'/>
	<enumerator name='DATA_TYPE_BYTE' value='2'/>
	<enumerator name='DATA_TYPE_INT16' value='3'/>
	<enumerator name='DATA_TYPE_UINT16' value='4'/>
	<enumerator name='DATA_TYPE_INT32' value='5'/>
	<enumerator name='DATA_TYPE_UINT32' value='6'/>
	<enumerator name='DATA_TYPE_INT64' value='7'/>
	<enumerator name='DATA_TYPE_UINT64' value='8'/>
	<enumerator name='DATA_TYPE_STRING' value='9'/>
	<enumerator name='DATA_TYPE_BYTE_ARRAY' value='10'/>
	<enumerator name='DATA_TYPE_INT16_ARRAY' value='11'/>
	<enumerator name='DATA_TYPE_UINT16_ARRAY' value='12'/>
	<enumerator name='DATA_TYPE_INT32_ARRAY' value='13'/>
	<enumerator name='DATA_TYPE_UINT32_ARRAY' value='14'/>
	<enumerator name='DATA_TYPE_INT64_ARRAY' value='15'/>
	<enumerator name='DATA_TYPE_UINT64_ARRAY' value='16'/>
	<enumerator name='DATA_TYPE_STRING_ARRAY' value='17'/>
	<enumerator name='DATA_TYPE_HRTIME' value='18'/>
	<enumerator name='DATA_TYPE_NVLIST' value='19'/>
	<enumerator name='DATA_TYPE_NVLIST_ARRAY' value='20'/>
	<enumerator name='DATA_TYPE_BOOLEAN_VALUE' value='21'/>
	<enumerator name='DATA_TYPE_INT8' value='22'/>
	<enumerator name='DATA_TYPE_UINT8' value='23'/>
	<enumerator name='DATA_TYPE_BOOLEAN_ARRAY' value='24'/>
	<enumerator name='DATA_TYPE_INT8_ARRAY' value='25'/>
	<enumerator name='DATA_TYPE_UINT8_ARRAY' value='26'/>
	<enumerator name='DATA_TYPE_DOUBLE' value='27'/>
	</enum-decl>
	- <typedef-decl name='data_type_t' type-id='type-id-216' filepath='../../include/sys/nvpair.h' line='71' column='1' id='type-id-215'/>
	+ <typedef-decl name='data_type_t' type-id='type-id-216' id='type-id-215'/>
	<pointer-type-def type-id='type-id-214' size-in-bits='64' id='type-id-217'/>
	<pointer-type-def type-id='type-id-64' size-in-bits='64' id='type-id-218'/>
	- <function-decl name='nvlist_next_nvpair' filepath='../../include/sys/nvpair.h' line='242' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_next_nvpair' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-217'/>
	<return type-id='type-id-217'/>
	</function-decl>
	- <function-decl name='nvpair_type' filepath='../../include/sys/nvpair.h' line='245' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_type' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<return type-id='type-id-216'/>
	</function-decl>
	- <function-decl name='nvpair_name' filepath='../../include/sys/nvpair.h' line='244' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_name' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<return type-id='type-id-9'/>
	</function-decl>
	<pointer-type-def type-id='type-id-80' size-in-bits='64' id='type-id-219'/>
	- <function-decl name='nvpair_value_byte' filepath='../../include/sys/nvpair.h' line='248' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_byte' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-219'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-92' size-in-bits='64' id='type-id-220'/>
	- <function-decl name='nvpair_value_int16' filepath='../../include/sys/nvpair.h' line='251' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_int16' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-220'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-13' size-in-bits='64' id='type-id-221'/>
	- <function-decl name='nvpair_value_uint16' filepath='../../include/sys/nvpair.h' line='252' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_uint16' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-221'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-5' size-in-bits='64' id='type-id-222'/>
	- <function-decl name='nvpair_value_int32' filepath='../../include/sys/nvpair.h' line='253' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_int32' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-222'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-69' size-in-bits='64' id='type-id-223'/>
	- <function-decl name='nvpair_value_uint32' filepath='../../include/sys/nvpair.h' line='254' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_uint32' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-24' size-in-bits='64' id='type-id-224'/>
	- <function-decl name='nvpair_value_int64' filepath='../../include/sys/nvpair.h' line='255' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_int64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-224'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-29' size-in-bits='64' id='type-id-225'/>
	- <function-decl name='nvpair_value_uint64' filepath='../../include/sys/nvpair.h' line='256' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_uint64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-225'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_string' filepath='../../include/sys/nvpair.h' line='257' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_string' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-153'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-219' size-in-bits='64' id='type-id-226'/>
	- <function-decl name='nvpair_value_byte_array' filepath='../../include/sys/nvpair.h' line='260' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_byte_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-226'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-220' size-in-bits='64' id='type-id-227'/>
	- <function-decl name='nvpair_value_int16_array' filepath='../../include/sys/nvpair.h' line='263' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_int16_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-227'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-221' size-in-bits='64' id='type-id-228'/>
	- <function-decl name='nvpair_value_uint16_array' filepath='../../include/sys/nvpair.h' line='264' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_uint16_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-228'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-222' size-in-bits='64' id='type-id-229'/>
	- <function-decl name='nvpair_value_int32_array' filepath='../../include/sys/nvpair.h' line='265' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_int32_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-229'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-223' size-in-bits='64' id='type-id-230'/>
	- <function-decl name='nvpair_value_uint32_array' filepath='../../include/sys/nvpair.h' line='266' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_uint32_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-230'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-224' size-in-bits='64' id='type-id-231'/>
	- <function-decl name='nvpair_value_int64_array' filepath='../../include/sys/nvpair.h' line='267' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_int64_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-231'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-225' size-in-bits='64' id='type-id-232'/>
	- <function-decl name='nvpair_value_uint64_array' filepath='../../include/sys/nvpair.h' line='268' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_uint64_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-232'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-153' size-in-bits='64' id='type-id-233'/>
	- <function-decl name='nvpair_value_string_array' filepath='../../include/sys/nvpair.h' line='269' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_string_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-233'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-116' size-in-bits='64' id='type-id-234'/>
	- <function-decl name='nvpair_value_hrtime' filepath='../../include/sys/nvpair.h' line='271' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_hrtime' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-234'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-218' size-in-bits='64' id='type-id-235'/>
	- <function-decl name='nvpair_value_nvlist' filepath='../../include/sys/nvpair.h' line='258' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_nvlist' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-235'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-235' size-in-bits='64' id='type-id-236'/>
	- <function-decl name='nvpair_value_nvlist_array' filepath='../../include/sys/nvpair.h' line='270' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_nvlist_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-236'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-76' size-in-bits='64' id='type-id-237'/>
	- <function-decl name='nvpair_value_boolean_value' filepath='../../include/sys/nvpair.h' line='247' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_boolean_value' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-237'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-14' size-in-bits='64' id='type-id-238'/>
	- <function-decl name='nvpair_value_int8' filepath='../../include/sys/nvpair.h' line='249' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_int8' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-238'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_uint8' filepath='../../include/sys/nvpair.h' line='250' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_uint8' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-219'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-237' size-in-bits='64' id='type-id-239'/>
	- <function-decl name='nvpair_value_boolean_array' filepath='../../include/sys/nvpair.h' line='259' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_boolean_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-239'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-238' size-in-bits='64' id='type-id-240'/>
	- <function-decl name='nvpair_value_int8_array' filepath='../../include/sys/nvpair.h' line='261' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_int8_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-240'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_uint8_array' filepath='../../include/sys/nvpair.h' line='262' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_uint8_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-226'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-111' size-in-bits='64' id='type-id-241'/>
	- <function-decl name='nvpair_value_double' filepath='../../include/sys/nvpair.h' line='273' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_double' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-217'/>
	<parameter type-id='type-id-241'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_prt' mangled-name='nvlist_prt' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='766' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prt'>
	- <parameter type-id='type-id-73' name='nvl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='766' column='1'/>
	- <parameter type-id='type-id-158' name='pctl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='766' column='1'/>
	+ <function-decl name='nvlist_prt' mangled-name='nvlist_prt' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prt'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-158' name='pctl'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='dump_nvlist' mangled-name='dump_nvlist' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='794' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dump_nvlist'>
	- <parameter type-id='type-id-73' name='list' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='794' column='1'/>
	- <parameter type-id='type-id-5' name='indent' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='794' column='1'/>
	+ <function-decl name='dump_nvlist' mangled-name='dump_nvlist' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dump_nvlist'>
	+ <parameter type-id='type-id-73' name='list'/>
	+ <parameter type-id='type-id-5' name='indent'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='dcgettext' filepath='/usr/include/libintl.h' line='51' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='dcgettext' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-5'/>
	<return type-id='type-id-9'/>
	</function-decl>
	- <typedef-decl name='nvpair_t' type-id='type-id-214' filepath='../../include/sys/nvpair.h' line='82' column='1' id='type-id-242'/>
	+ <typedef-decl name='nvpair_t' type-id='type-id-214' id='type-id-242'/>
	<pointer-type-def type-id='type-id-242' size-in-bits='64' id='type-id-243'/>
	- <class-decl name='re_pattern_buffer' size-in-bits='512' is-struct='yes' visibility='default' filepath='/usr/include/regex.h' line='413' column='1' id='type-id-244'>
	+ <class-decl name='re_pattern_buffer' size-in-bits='512' is-struct='yes' visibility='default' id='type-id-244'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='buffer' type-id='type-id-245' visibility='default' filepath='/usr/include/regex.h' line='417' column='1'/>
	+ <var-decl name='buffer' type-id='type-id-245' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	- <var-decl name='allocated' type-id='type-id-246' visibility='default' filepath='/usr/include/regex.h' line='420' column='1'/>
	+ <var-decl name='allocated' type-id='type-id-246' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	- <var-decl name='used' type-id='type-id-246' visibility='default' filepath='/usr/include/regex.h' line='423' column='1'/>
	+ <var-decl name='used' type-id='type-id-246' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='192'>
	- <var-decl name='syntax' type-id='type-id-247' visibility='default' filepath='/usr/include/regex.h' line='426' column='1'/>
	+ <var-decl name='syntax' type-id='type-id-247' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='256'>
	- <var-decl name='fastmap' type-id='type-id-9' visibility='default' filepath='/usr/include/regex.h' line='431' column='1'/>
	+ <var-decl name='fastmap' type-id='type-id-9' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='320'>
	- <var-decl name='translate' type-id='type-id-219' visibility='default' filepath='/usr/include/regex.h' line='437' column='1'/>
	+ <var-decl name='translate' type-id='type-id-219' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='384'>
	- <var-decl name='re_nsub' type-id='type-id-20' visibility='default' filepath='/usr/include/regex.h' line='440' column='1'/>
	+ <var-decl name='re_nsub' type-id='type-id-20' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='31'>
	- <var-decl name='can_be_null' type-id='type-id-69' visibility='default' filepath='/usr/include/regex.h' line='446' column='1'/>
	+ <var-decl name='can_be_null' type-id='type-id-69' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='29'>
	- <var-decl name='regs_allocated' type-id='type-id-69' visibility='default' filepath='/usr/include/regex.h' line='457' column='1'/>
	+ <var-decl name='regs_allocated' type-id='type-id-69' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='28'>
	- <var-decl name='fastmap_accurate' type-id='type-id-69' visibility='default' filepath='/usr/include/regex.h' line='461' column='1'/>
	+ <var-decl name='fastmap_accurate' type-id='type-id-69' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='27'>
	- <var-decl name='no_sub' type-id='type-id-69' visibility='default' filepath='/usr/include/regex.h' line='465' column='1'/>
	+ <var-decl name='no_sub' type-id='type-id-69' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='26'>
	- <var-decl name='not_bol' type-id='type-id-69' visibility='default' filepath='/usr/include/regex.h' line='469' column='1'/>
	+ <var-decl name='not_bol' type-id='type-id-69' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='25'>
	- <var-decl name='not_eol' type-id='type-id-69' visibility='default' filepath='/usr/include/regex.h' line='472' column='1'/>
	+ <var-decl name='not_eol' type-id='type-id-69' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='24'>
	- <var-decl name='newline_anchor' type-id='type-id-69' visibility='default' filepath='/usr/include/regex.h' line='475' column='1'/>
	+ <var-decl name='newline_anchor' type-id='type-id-69' visibility='default'/>
	</data-member>
	</class-decl>
	<class-decl name='re_dfa_t' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-248'/>
	<pointer-type-def type-id='type-id-248' size-in-bits='64' id='type-id-245'/>
	- <typedef-decl name='__re_long_size_t' type-id='type-id-29' filepath='/usr/include/regex.h' line='56' column='1' id='type-id-246'/>
	- <typedef-decl name='reg_syntax_t' type-id='type-id-29' filepath='/usr/include/regex.h' line='72' column='1' id='type-id-247'/>
	- <typedef-decl name='regex_t' type-id='type-id-244' filepath='/usr/include/regex.h' line='478' column='1' id='type-id-249'/>
	+ <typedef-decl name='__re_long_size_t' type-id='type-id-29' id='type-id-246'/>
	+ <typedef-decl name='reg_syntax_t' type-id='type-id-29' id='type-id-247'/>
	+ <typedef-decl name='regex_t' type-id='type-id-244' id='type-id-249'/>
	<pointer-type-def type-id='type-id-249' size-in-bits='64' id='type-id-250'/>
	- <function-decl name='nvpair_value_match_regex' mangled-name='nvpair_value_match_regex' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='949' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_match_regex'>
	- <parameter type-id='type-id-243' name='nvp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='949' column='1'/>
	- <parameter type-id='type-id-5' name='ai' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='949' column='1'/>
	- <parameter type-id='type-id-9' name='value' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='950' column='1'/>
	- <parameter type-id='type-id-250' name='value_regex' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='950' column='1'/>
	- <parameter type-id='type-id-153' name='ep' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='950' column='1'/>
	+ <function-decl name='nvpair_value_match_regex' mangled-name='nvpair_value_match_regex' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_match_regex'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-5' name='ai'/>
	+ <parameter type-id='type-id-9' name='value'/>
	+ <parameter type-id='type-id-250' name='value_regex'/>
	+ <parameter type-id='type-id-153' name='ep'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_type_is_array' filepath='../../include/sys/nvpair.h' line='246' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_type_is_array' visibility='default' binding='global' size-in-bits='64'>
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	- <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='/usr/include/regex.h' line='517' column='1' id='type-id-253'>
	+ <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' id='type-id-253'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='rm_so' type-id='type-id-254' visibility='default' filepath='/usr/include/regex.h' line='519' column='1'/>
	+ <var-decl name='rm_so' type-id='type-id-254' visibility='default'/>
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	- <var-decl name='rm_eo' type-id='type-id-254' visibility='default' filepath='/usr/include/regex.h' line='520' column='1'/>
	+ <var-decl name='rm_eo' type-id='type-id-254' visibility='default'/>
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	</class-decl>
	- <typedef-decl name='regoff_t' type-id='type-id-5' filepath='/usr/include/regex.h' line='490' column='1' id='type-id-254'/>
	+ <typedef-decl name='regoff_t' type-id='type-id-5' id='type-id-254'/>
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	- <function-decl name='regexec' filepath='/usr/include/regex.h' line='643' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='regexec' visibility='default' binding='global' size-in-bits='64'>
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	- <function-decl name='nvpair_value_match' mangled-name='nvpair_value_match' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='1274' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_match'>
	- <parameter type-id='type-id-243' name='nvp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='1274' column='1'/>
	- <parameter type-id='type-id-5' name='ai' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='1274' column='1'/>
	- <parameter type-id='type-id-9' name='value' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='1274' column='1'/>
	- <parameter type-id='type-id-153' name='ep' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libnvpair/libnvpair.c' line='1274' column='1'/>
	+ <function-decl name='nvpair_value_match' mangled-name='nvpair_value_match' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_match'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-5' name='ai'/>
	+ <parameter type-id='type-id-9' name='value'/>
	+ <parameter type-id='type-id-153' name='ep'/>
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	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nv_alloc_reset' mangled-name='nv_alloc_reset' filepath='../../module/nvpair/nvpair.c' line='174' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nv_alloc_reset'>
	- <parameter type-id='type-id-269' name='nva' filepath='../../module/nvpair/nvpair.c' line='174' column='1'/>
	+ <function-decl name='nv_alloc_reset' mangled-name='nv_alloc_reset' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nv_alloc_reset'>
	+ <parameter type-id='type-id-269' name='nva'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nv_alloc_fini' mangled-name='nv_alloc_fini' filepath='../../module/nvpair/nvpair.c' line='181' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nv_alloc_fini'>
	- <parameter type-id='type-id-269' name='nva' filepath='../../module/nvpair/nvpair.c' line='174' column='1'/>
	+ <function-decl name='nv_alloc_fini' mangled-name='nv_alloc_fini' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nv_alloc_fini'>
	+ <parameter type-id='type-id-269' name='nva'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_nv_alloc' mangled-name='nvlist_lookup_nv_alloc' filepath='../../module/nvpair/nvpair.c' line='188' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_nv_alloc'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='188' column='1'/>
	+ <function-decl name='nvlist_lookup_nv_alloc' mangled-name='nvlist_lookup_nv_alloc' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_nv_alloc'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	<return type-id='type-id-269'/>
	</function-decl>
	- <function-decl name='nvlist_nvflag' mangled-name='nvlist_nvflag' filepath='../../module/nvpair/nvpair.c' line='559' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_nvflag'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='559' column='1'/>
	+ <function-decl name='nvlist_nvflag' mangled-name='nvlist_nvflag' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_nvflag'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	<return type-id='type-id-123'/>
	</function-decl>
	- <function-decl name='nvlist_alloc' mangled-name='nvlist_alloc' filepath='../../module/nvpair/nvpair.c' line='585' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_alloc'>
	- <parameter type-id='type-id-156' name='nvlp' filepath='../../module/nvpair/nvpair.c' line='585' column='1'/>
	- <parameter type-id='type-id-123' name='nvflag' filepath='../../module/nvpair/nvpair.c' line='585' column='1'/>
	- <parameter type-id='type-id-5' name='kmflag' filepath='../../module/nvpair/nvpair.c' line='585' column='1'/>
	+ <function-decl name='nvlist_alloc' mangled-name='nvlist_alloc' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_alloc'>
	+ <parameter type-id='type-id-156' name='nvlp'/>
	+ <parameter type-id='type-id-123' name='nvflag'/>
	+ <parameter type-id='type-id-5' name='kmflag'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_xalloc' mangled-name='nvlist_xalloc' filepath='../../module/nvpair/nvpair.c' line='591' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_xalloc'>
	- <parameter type-id='type-id-156' name='nvlp' filepath='../../module/nvpair/nvpair.c' line='591' column='1'/>
	- <parameter type-id='type-id-123' name='nvflag' filepath='../../module/nvpair/nvpair.c' line='591' column='1'/>
	- <parameter type-id='type-id-269' name='nva' filepath='../../module/nvpair/nvpair.c' line='591' column='1'/>
	+ <function-decl name='nvlist_xalloc' mangled-name='nvlist_xalloc' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_xalloc'>
	+ <parameter type-id='type-id-156' name='nvlp'/>
	+ <parameter type-id='type-id-123' name='nvflag'/>
	+ <parameter type-id='type-id-269' name='nva'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_free' mangled-name='nvlist_free' filepath='../../module/nvpair/nvpair.c' line='866' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_free'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='866' column='1'/>
	+ <function-decl name='nvlist_free' mangled-name='nvlist_free' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_free'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_dup' mangled-name='nvlist_dup' filepath='../../module/nvpair/nvpair.c' line='916' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_dup'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='916' column='1'/>
	- <parameter type-id='type-id-156' name='nvlp' filepath='../../module/nvpair/nvpair.c' line='916' column='1'/>
	- <parameter type-id='type-id-5' name='kmflag' filepath='../../module/nvpair/nvpair.c' line='916' column='1'/>
	+ <function-decl name='nvlist_dup' mangled-name='nvlist_dup' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_dup'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-156' name='nvlp'/>
	+ <parameter type-id='type-id-5' name='kmflag'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_xdup' mangled-name='nvlist_xdup' filepath='../../module/nvpair/nvpair.c' line='922' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_xdup'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='922' column='1'/>
	- <parameter type-id='type-id-156' name='nvlp' filepath='../../module/nvpair/nvpair.c' line='922' column='1'/>
	- <parameter type-id='type-id-269' name='nva' filepath='../../module/nvpair/nvpair.c' line='922' column='1'/>
	+ <function-decl name='nvlist_xdup' mangled-name='nvlist_xdup' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_xdup'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-156' name='nvlp'/>
	+ <parameter type-id='type-id-269' name='nva'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_remove_all' mangled-name='nvlist_remove_all' filepath='../../module/nvpair/nvpair.c' line='945' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_remove_all'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='945' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='945' column='1'/>
	+ <function-decl name='nvlist_remove_all' mangled-name='nvlist_remove_all' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_remove_all'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_remove_nvpair' mangled-name='nvlist_remove_nvpair' filepath='../../module/nvpair/nvpair.c' line='978' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_remove_nvpair'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='978' column='1'/>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='978' column='1'/>
	+ <function-decl name='nvlist_remove_nvpair' mangled-name='nvlist_remove_nvpair' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_remove_nvpair'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_remove' mangled-name='nvlist_remove' filepath='../../module/nvpair/nvpair.c' line='965' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_remove'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='965' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='965' column='1'/>
	- <parameter type-id='type-id-215' name='type' filepath='../../module/nvpair/nvpair.c' line='965' column='1'/>
	+ <function-decl name='nvlist_remove' mangled-name='nvlist_remove' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_remove'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-215' name='type'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_boolean' mangled-name='nvlist_add_boolean' filepath='../../module/nvpair/nvpair.c' line='1276' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_boolean'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1276' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1276' column='1'/>
	+ <function-decl name='nvlist_add_boolean' mangled-name='nvlist_add_boolean' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_boolean'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_boolean_value' mangled-name='nvlist_add_boolean_value' filepath='../../module/nvpair/nvpair.c' line='1282' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_boolean_value'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1282' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1282' column='1'/>
	- <parameter type-id='type-id-77' name='val' filepath='../../module/nvpair/nvpair.c' line='1282' column='1'/>
	+ <function-decl name='nvlist_add_boolean_value' mangled-name='nvlist_add_boolean_value' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_boolean_value'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-77' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_byte' mangled-name='nvlist_add_byte' filepath='../../module/nvpair/nvpair.c' line='1288' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_byte'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1288' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1288' column='1'/>
	- <parameter type-id='type-id-81' name='val' filepath='../../module/nvpair/nvpair.c' line='1288' column='1'/>
	+ <function-decl name='nvlist_add_byte' mangled-name='nvlist_add_byte' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_byte'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-81' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_int8' mangled-name='nvlist_add_int8' filepath='../../module/nvpair/nvpair.c' line='1294' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_int8'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1294' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1294' column='1'/>
	- <parameter type-id='type-id-85' name='val' filepath='../../module/nvpair/nvpair.c' line='1294' column='1'/>
	+ <function-decl name='nvlist_add_int8' mangled-name='nvlist_add_int8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_int8'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-85' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint8' mangled-name='nvlist_add_uint8' filepath='../../module/nvpair/nvpair.c' line='1300' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_uint8'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1300' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1300' column='1'/>
	- <parameter type-id='type-id-89' name='val' filepath='../../module/nvpair/nvpair.c' line='1300' column='1'/>
	+ <function-decl name='nvlist_add_uint8' mangled-name='nvlist_add_uint8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_uint8'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-89' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_int16' mangled-name='nvlist_add_int16' filepath='../../module/nvpair/nvpair.c' line='1306' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_int16'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1306' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1306' column='1'/>
	- <parameter type-id='type-id-94' name='val' filepath='../../module/nvpair/nvpair.c' line='1306' column='1'/>
	+ <function-decl name='nvlist_add_int16' mangled-name='nvlist_add_int16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_int16'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-94' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint16' mangled-name='nvlist_add_uint16' filepath='../../module/nvpair/nvpair.c' line='1312' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_uint16'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1312' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1312' column='1'/>
	- <parameter type-id='type-id-98' name='val' filepath='../../module/nvpair/nvpair.c' line='1312' column='1'/>
	+ <function-decl name='nvlist_add_uint16' mangled-name='nvlist_add_uint16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_uint16'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-98' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_int32' mangled-name='nvlist_add_int32' filepath='../../module/nvpair/nvpair.c' line='1318' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_int32'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1318' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1318' column='1'/>
	- <parameter type-id='type-id-65' name='val' filepath='../../module/nvpair/nvpair.c' line='1318' column='1'/>
	+ <function-decl name='nvlist_add_int32' mangled-name='nvlist_add_int32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_int32'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-65' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint32' mangled-name='nvlist_add_uint32' filepath='../../module/nvpair/nvpair.c' line='1324' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_uint32'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1324' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1324' column='1'/>
	- <parameter type-id='type-id-66' name='val' filepath='../../module/nvpair/nvpair.c' line='1324' column='1'/>
	+ <function-decl name='nvlist_add_uint32' mangled-name='nvlist_add_uint32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_uint32'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-66' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_int64' mangled-name='nvlist_add_int64' filepath='../../module/nvpair/nvpair.c' line='1330' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_int64'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1330' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1330' column='1'/>
	- <parameter type-id='type-id-106' name='val' filepath='../../module/nvpair/nvpair.c' line='1330' column='1'/>
	+ <function-decl name='nvlist_add_int64' mangled-name='nvlist_add_int64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_int64'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-106' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint64' mangled-name='nvlist_add_uint64' filepath='../../module/nvpair/nvpair.c' line='1336' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_uint64'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1336' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1336' column='1'/>
	- <parameter type-id='type-id-67' name='val' filepath='../../module/nvpair/nvpair.c' line='1336' column='1'/>
	+ <function-decl name='nvlist_add_uint64' mangled-name='nvlist_add_uint64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_uint64'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-67' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_double' mangled-name='nvlist_add_double' filepath='../../module/nvpair/nvpair.c' line='1343' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_double'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1343' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1343' column='1'/>
	- <parameter type-id='type-id-111' name='val' filepath='../../module/nvpair/nvpair.c' line='1343' column='1'/>
	+ <function-decl name='nvlist_add_double' mangled-name='nvlist_add_double' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_double'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-111' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_string' mangled-name='nvlist_add_string' filepath='../../module/nvpair/nvpair.c' line='1350' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_string'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1350' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1350' column='1'/>
	- <parameter type-id='type-id-6' name='val' filepath='../../module/nvpair/nvpair.c' line='1350' column='1'/>
	+ <function-decl name='nvlist_add_string' mangled-name='nvlist_add_string' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_string'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-6' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_boolean_array' mangled-name='nvlist_add_boolean_array' filepath='../../module/nvpair/nvpair.c' line='1356' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_boolean_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1356' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1356' column='1'/>
	- <parameter type-id='type-id-122' name='a' filepath='../../module/nvpair/nvpair.c' line='1357' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/nvpair.c' line='1357' column='1'/>
	+ <function-decl name='nvlist_add_boolean_array' mangled-name='nvlist_add_boolean_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_boolean_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-122' name='a'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_byte_array' mangled-name='nvlist_add_byte_array' filepath='../../module/nvpair/nvpair.c' line='1363' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_byte_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1363' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1363' column='1'/>
	- <parameter type-id='type-id-126' name='a' filepath='../../module/nvpair/nvpair.c' line='1363' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/nvpair.c' line='1363' column='1'/>
	+ <function-decl name='nvlist_add_byte_array' mangled-name='nvlist_add_byte_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_byte_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-126' name='a'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_int8_array' mangled-name='nvlist_add_int8_array' filepath='../../module/nvpair/nvpair.c' line='1369' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_int8_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1369' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1369' column='1'/>
	- <parameter type-id='type-id-129' name='a' filepath='../../module/nvpair/nvpair.c' line='1369' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/nvpair.c' line='1369' column='1'/>
	+ <function-decl name='nvlist_add_int8_array' mangled-name='nvlist_add_int8_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_int8_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-129' name='a'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint8_array' mangled-name='nvlist_add_uint8_array' filepath='../../module/nvpair/nvpair.c' line='1375' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_uint8_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1375' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1375' column='1'/>
	- <parameter type-id='type-id-132' name='a' filepath='../../module/nvpair/nvpair.c' line='1375' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/nvpair.c' line='1375' column='1'/>
	+ <function-decl name='nvlist_add_uint8_array' mangled-name='nvlist_add_uint8_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_uint8_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-132' name='a'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_int16_array' mangled-name='nvlist_add_int16_array' filepath='../../module/nvpair/nvpair.c' line='1381' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_int16_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1381' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1381' column='1'/>
	- <parameter type-id='type-id-135' name='a' filepath='../../module/nvpair/nvpair.c' line='1381' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/nvpair.c' line='1381' column='1'/>
	+ <function-decl name='nvlist_add_int16_array' mangled-name='nvlist_add_int16_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_int16_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-135' name='a'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint16_array' mangled-name='nvlist_add_uint16_array' filepath='../../module/nvpair/nvpair.c' line='1387' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_uint16_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1387' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1387' column='1'/>
	- <parameter type-id='type-id-138' name='a' filepath='../../module/nvpair/nvpair.c' line='1387' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/nvpair.c' line='1387' column='1'/>
	+ <function-decl name='nvlist_add_uint16_array' mangled-name='nvlist_add_uint16_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_uint16_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-138' name='a'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_int32_array' mangled-name='nvlist_add_int32_array' filepath='../../module/nvpair/nvpair.c' line='1393' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_int32_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1393' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1393' column='1'/>
	- <parameter type-id='type-id-141' name='a' filepath='../../module/nvpair/nvpair.c' line='1393' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/nvpair.c' line='1393' column='1'/>
	+ <function-decl name='nvlist_add_int32_array' mangled-name='nvlist_add_int32_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_int32_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-141' name='a'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint32_array' mangled-name='nvlist_add_uint32_array' filepath='../../module/nvpair/nvpair.c' line='1399' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_uint32_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1399' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1399' column='1'/>
	- <parameter type-id='type-id-144' name='a' filepath='../../module/nvpair/nvpair.c' line='1399' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/nvpair.c' line='1399' column='1'/>
	+ <function-decl name='nvlist_add_uint32_array' mangled-name='nvlist_add_uint32_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_uint32_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-144' name='a'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_int64_array' mangled-name='nvlist_add_int64_array' filepath='../../module/nvpair/nvpair.c' line='1405' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_int64_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1405' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1405' column='1'/>
	- <parameter type-id='type-id-147' name='a' filepath='../../module/nvpair/nvpair.c' line='1405' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/nvpair.c' line='1405' column='1'/>
	+ <function-decl name='nvlist_add_int64_array' mangled-name='nvlist_add_int64_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_int64_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-147' name='a'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint64_array' mangled-name='nvlist_add_uint64_array' filepath='../../module/nvpair/nvpair.c' line='1411' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_uint64_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1411' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1411' column='1'/>
	- <parameter type-id='type-id-150' name='a' filepath='../../module/nvpair/nvpair.c' line='1411' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/nvpair.c' line='1411' column='1'/>
	+ <function-decl name='nvlist_add_uint64_array' mangled-name='nvlist_add_uint64_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_uint64_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-150' name='a'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<qualified-type-def type-id='type-id-9' const='yes' id='type-id-278'/>
	<pointer-type-def type-id='type-id-278' size-in-bits='64' id='type-id-279'/>
	- <function-decl name='nvlist_add_string_array' mangled-name='nvlist_add_string_array' filepath='../../module/nvpair/nvpair.c' line='1417' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_string_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1417' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1417' column='1'/>
	- <parameter type-id='type-id-279' name='a' filepath='../../module/nvpair/nvpair.c' line='1418' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/nvpair.c' line='1418' column='1'/>
	+ <function-decl name='nvlist_add_string_array' mangled-name='nvlist_add_string_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_string_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-279' name='a'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_hrtime' mangled-name='nvlist_add_hrtime' filepath='../../module/nvpair/nvpair.c' line='1424' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_hrtime'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1424' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1424' column='1'/>
	- <parameter type-id='type-id-117' name='val' filepath='../../module/nvpair/nvpair.c' line='1424' column='1'/>
	+ <function-decl name='nvlist_add_hrtime' mangled-name='nvlist_add_hrtime' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_hrtime'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-117' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_nvlist' mangled-name='nvlist_add_nvlist' filepath='../../module/nvpair/nvpair.c' line='1430' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_nvlist'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1430' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1430' column='1'/>
	- <parameter type-id='type-id-73' name='val' filepath='../../module/nvpair/nvpair.c' line='1430' column='1'/>
	+ <function-decl name='nvlist_add_nvlist' mangled-name='nvlist_add_nvlist' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_nvlist'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-73' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_nvlist_array' mangled-name='nvlist_add_nvlist_array' filepath='../../module/nvpair/nvpair.c' line='1436' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_nvlist_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1436' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1436' column='1'/>
	- <parameter type-id='type-id-156' name='a' filepath='../../module/nvpair/nvpair.c' line='1436' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/nvpair.c' line='1436' column='1'/>
	+ <function-decl name='nvlist_add_nvlist_array' mangled-name='nvlist_add_nvlist_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_nvlist_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-156' name='a'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_next_nvpair' mangled-name='nvlist_next_nvpair' filepath='../../module/nvpair/nvpair.c' line='1443' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_next_nvpair'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1443' column='1'/>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='1443' column='1'/>
	+ <function-decl name='nvlist_next_nvpair' mangled-name='nvlist_next_nvpair' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_next_nvpair'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-243'/>
	</function-decl>
	- <function-decl name='nvlist_prev_nvpair' mangled-name='nvlist_prev_nvpair' filepath='../../module/nvpair/nvpair.c' line='1472' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prev_nvpair'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1443' column='1'/>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='1443' column='1'/>
	+ <function-decl name='nvlist_prev_nvpair' mangled-name='nvlist_prev_nvpair' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_prev_nvpair'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-243'/>
	</function-decl>
	- <function-decl name='nvlist_empty' mangled-name='nvlist_empty' filepath='../../module/nvpair/nvpair.c' line='1496' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_empty'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1496' column='1'/>
	+ <function-decl name='nvlist_empty' mangled-name='nvlist_empty' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_empty'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	<return type-id='type-id-77'/>
	</function-decl>
	- <function-decl name='nvpair_name' mangled-name='nvpair_name' filepath='../../module/nvpair/nvpair.c' line='1508' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_name'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='1508' column='1'/>
	+ <function-decl name='nvpair_name' mangled-name='nvpair_name' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_name'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-9'/>
	</function-decl>
	- <function-decl name='nvpair_type' mangled-name='nvpair_type' filepath='../../module/nvpair/nvpair.c' line='1514' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_type'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='1514' column='1'/>
	+ <function-decl name='nvpair_type' mangled-name='nvpair_type' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_type'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-215'/>
	</function-decl>
	- <function-decl name='nvpair_type_is_array' mangled-name='nvpair_type_is_array' filepath='../../module/nvpair/nvpair.c' line='1520' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_type_is_array'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='1520' column='1'/>
	+ <function-decl name='nvpair_type_is_array' mangled-name='nvpair_type_is_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_type_is_array'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_boolean' mangled-name='nvlist_lookup_boolean' filepath='../../module/nvpair/nvpair.c' line='1636' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_boolean'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1276' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1276' column='1'/>
	+ <function-decl name='nvlist_lookup_boolean' mangled-name='nvlist_lookup_boolean' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_boolean'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_boolean_value' mangled-name='nvlist_lookup_boolean_value' filepath='../../module/nvpair/nvpair.c' line='1642' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_boolean_value'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1642' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1642' column='1'/>
	- <parameter type-id='type-id-122' name='val' filepath='../../module/nvpair/nvpair.c' line='1642' column='1'/>
	+ <function-decl name='nvlist_lookup_boolean_value' mangled-name='nvlist_lookup_boolean_value' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_boolean_value'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-122' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_byte' mangled-name='nvlist_lookup_byte' filepath='../../module/nvpair/nvpair.c' line='1649' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_byte'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1649' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1649' column='1'/>
	- <parameter type-id='type-id-126' name='val' filepath='../../module/nvpair/nvpair.c' line='1649' column='1'/>
	+ <function-decl name='nvlist_lookup_byte' mangled-name='nvlist_lookup_byte' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_byte'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-126' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_int8' mangled-name='nvlist_lookup_int8' filepath='../../module/nvpair/nvpair.c' line='1655' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_int8'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1655' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1655' column='1'/>
	- <parameter type-id='type-id-129' name='val' filepath='../../module/nvpair/nvpair.c' line='1655' column='1'/>
	+ <function-decl name='nvlist_lookup_int8' mangled-name='nvlist_lookup_int8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_int8'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-129' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_uint8' mangled-name='nvlist_lookup_uint8' filepath='../../module/nvpair/nvpair.c' line='1661' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_uint8'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1661' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1661' column='1'/>
	- <parameter type-id='type-id-132' name='val' filepath='../../module/nvpair/nvpair.c' line='1661' column='1'/>
	+ <function-decl name='nvlist_lookup_uint8' mangled-name='nvlist_lookup_uint8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_uint8'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-132' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_int16' mangled-name='nvlist_lookup_int16' filepath='../../module/nvpair/nvpair.c' line='1667' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_int16'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1667' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1667' column='1'/>
	- <parameter type-id='type-id-135' name='val' filepath='../../module/nvpair/nvpair.c' line='1667' column='1'/>
	+ <function-decl name='nvlist_lookup_int16' mangled-name='nvlist_lookup_int16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_int16'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-135' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_uint16' mangled-name='nvlist_lookup_uint16' filepath='../../module/nvpair/nvpair.c' line='1673' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_uint16'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1673' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1673' column='1'/>
	- <parameter type-id='type-id-138' name='val' filepath='../../module/nvpair/nvpair.c' line='1673' column='1'/>
	+ <function-decl name='nvlist_lookup_uint16' mangled-name='nvlist_lookup_uint16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_uint16'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-138' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_int32' mangled-name='nvlist_lookup_int32' filepath='../../module/nvpair/nvpair.c' line='1679' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_int32'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1679' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1679' column='1'/>
	- <parameter type-id='type-id-141' name='val' filepath='../../module/nvpair/nvpair.c' line='1679' column='1'/>
	+ <function-decl name='nvlist_lookup_int32' mangled-name='nvlist_lookup_int32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_int32'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-141' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_uint32' mangled-name='nvlist_lookup_uint32' filepath='../../module/nvpair/nvpair.c' line='1685' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_uint32'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1685' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1685' column='1'/>
	- <parameter type-id='type-id-144' name='val' filepath='../../module/nvpair/nvpair.c' line='1685' column='1'/>
	+ <function-decl name='nvlist_lookup_uint32' mangled-name='nvlist_lookup_uint32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_uint32'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-144' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_int64' mangled-name='nvlist_lookup_int64' filepath='../../module/nvpair/nvpair.c' line='1691' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_int64'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1691' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1691' column='1'/>
	- <parameter type-id='type-id-147' name='val' filepath='../../module/nvpair/nvpair.c' line='1691' column='1'/>
	+ <function-decl name='nvlist_lookup_int64' mangled-name='nvlist_lookup_int64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_int64'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-147' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_uint64' mangled-name='nvlist_lookup_uint64' filepath='../../module/nvpair/nvpair.c' line='1697' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_uint64'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1697' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1697' column='1'/>
	- <parameter type-id='type-id-150' name='val' filepath='../../module/nvpair/nvpair.c' line='1697' column='1'/>
	+ <function-decl name='nvlist_lookup_uint64' mangled-name='nvlist_lookup_uint64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_uint64'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-150' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_double' mangled-name='nvlist_lookup_double' filepath='../../module/nvpair/nvpair.c' line='1704' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_double'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1704' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1704' column='1'/>
	- <parameter type-id='type-id-241' name='val' filepath='../../module/nvpair/nvpair.c' line='1704' column='1'/>
	+ <function-decl name='nvlist_lookup_double' mangled-name='nvlist_lookup_double' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_double'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-241' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_string' mangled-name='nvlist_lookup_string' filepath='../../module/nvpair/nvpair.c' line='1711' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_string'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1711' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1711' column='1'/>
	- <parameter type-id='type-id-153' name='val' filepath='../../module/nvpair/nvpair.c' line='1711' column='1'/>
	+ <function-decl name='nvlist_lookup_string' mangled-name='nvlist_lookup_string' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_string'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-153' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_nvlist' mangled-name='nvlist_lookup_nvlist' filepath='../../module/nvpair/nvpair.c' line='1717' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_nvlist'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1717' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1717' column='1'/>
	- <parameter type-id='type-id-156' name='val' filepath='../../module/nvpair/nvpair.c' line='1717' column='1'/>
	+ <function-decl name='nvlist_lookup_nvlist' mangled-name='nvlist_lookup_nvlist' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_nvlist'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-156' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-122' size-in-bits='64' id='type-id-280'/>
	<pointer-type-def type-id='type-id-123' size-in-bits='64' id='type-id-281'/>
	- <function-decl name='nvlist_lookup_boolean_array' mangled-name='nvlist_lookup_boolean_array' filepath='../../module/nvpair/nvpair.c' line='1723' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_boolean_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1723' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1723' column='1'/>
	- <parameter type-id='type-id-280' name='a' filepath='../../module/nvpair/nvpair.c' line='1724' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/nvpair.c' line='1724' column='1'/>
	+ <function-decl name='nvlist_lookup_boolean_array' mangled-name='nvlist_lookup_boolean_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_boolean_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-280' name='a'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-126' size-in-bits='64' id='type-id-282'/>
	- <function-decl name='nvlist_lookup_byte_array' mangled-name='nvlist_lookup_byte_array' filepath='../../module/nvpair/nvpair.c' line='1731' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_byte_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1731' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1731' column='1'/>
	- <parameter type-id='type-id-282' name='a' filepath='../../module/nvpair/nvpair.c' line='1732' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/nvpair.c' line='1732' column='1'/>
	+ <function-decl name='nvlist_lookup_byte_array' mangled-name='nvlist_lookup_byte_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_byte_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-282' name='a'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-129' size-in-bits='64' id='type-id-283'/>
	- <function-decl name='nvlist_lookup_int8_array' mangled-name='nvlist_lookup_int8_array' filepath='../../module/nvpair/nvpair.c' line='1738' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_int8_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1738' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1738' column='1'/>
	- <parameter type-id='type-id-283' name='a' filepath='../../module/nvpair/nvpair.c' line='1738' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/nvpair.c' line='1738' column='1'/>
	+ <function-decl name='nvlist_lookup_int8_array' mangled-name='nvlist_lookup_int8_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_int8_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-283' name='a'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-132' size-in-bits='64' id='type-id-284'/>
	- <function-decl name='nvlist_lookup_uint8_array' mangled-name='nvlist_lookup_uint8_array' filepath='../../module/nvpair/nvpair.c' line='1744' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_uint8_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1744' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1744' column='1'/>
	- <parameter type-id='type-id-284' name='a' filepath='../../module/nvpair/nvpair.c' line='1745' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/nvpair.c' line='1745' column='1'/>
	+ <function-decl name='nvlist_lookup_uint8_array' mangled-name='nvlist_lookup_uint8_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_uint8_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-284' name='a'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-135' size-in-bits='64' id='type-id-285'/>
	- <function-decl name='nvlist_lookup_int16_array' mangled-name='nvlist_lookup_int16_array' filepath='../../module/nvpair/nvpair.c' line='1751' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_int16_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1751' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1751' column='1'/>
	- <parameter type-id='type-id-285' name='a' filepath='../../module/nvpair/nvpair.c' line='1752' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/nvpair.c' line='1752' column='1'/>
	+ <function-decl name='nvlist_lookup_int16_array' mangled-name='nvlist_lookup_int16_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_int16_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-285' name='a'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-138' size-in-bits='64' id='type-id-286'/>
	- <function-decl name='nvlist_lookup_uint16_array' mangled-name='nvlist_lookup_uint16_array' filepath='../../module/nvpair/nvpair.c' line='1758' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_uint16_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1758' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1758' column='1'/>
	- <parameter type-id='type-id-286' name='a' filepath='../../module/nvpair/nvpair.c' line='1759' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/nvpair.c' line='1759' column='1'/>
	+ <function-decl name='nvlist_lookup_uint16_array' mangled-name='nvlist_lookup_uint16_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_uint16_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-286' name='a'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-141' size-in-bits='64' id='type-id-287'/>
	- <function-decl name='nvlist_lookup_int32_array' mangled-name='nvlist_lookup_int32_array' filepath='../../module/nvpair/nvpair.c' line='1765' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_int32_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1765' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1765' column='1'/>
	- <parameter type-id='type-id-287' name='a' filepath='../../module/nvpair/nvpair.c' line='1766' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/nvpair.c' line='1766' column='1'/>
	+ <function-decl name='nvlist_lookup_int32_array' mangled-name='nvlist_lookup_int32_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_int32_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-287' name='a'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-144' size-in-bits='64' id='type-id-288'/>
	- <function-decl name='nvlist_lookup_uint32_array' mangled-name='nvlist_lookup_uint32_array' filepath='../../module/nvpair/nvpair.c' line='1772' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_uint32_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1772' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1772' column='1'/>
	- <parameter type-id='type-id-288' name='a' filepath='../../module/nvpair/nvpair.c' line='1773' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/nvpair.c' line='1773' column='1'/>
	+ <function-decl name='nvlist_lookup_uint32_array' mangled-name='nvlist_lookup_uint32_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_uint32_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-288' name='a'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-147' size-in-bits='64' id='type-id-289'/>
	- <function-decl name='nvlist_lookup_int64_array' mangled-name='nvlist_lookup_int64_array' filepath='../../module/nvpair/nvpair.c' line='1779' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_int64_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1779' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1779' column='1'/>
	- <parameter type-id='type-id-289' name='a' filepath='../../module/nvpair/nvpair.c' line='1780' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/nvpair.c' line='1780' column='1'/>
	+ <function-decl name='nvlist_lookup_int64_array' mangled-name='nvlist_lookup_int64_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_int64_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-289' name='a'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-150' size-in-bits='64' id='type-id-290'/>
	- <function-decl name='nvlist_lookup_uint64_array' mangled-name='nvlist_lookup_uint64_array' filepath='../../module/nvpair/nvpair.c' line='1786' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_uint64_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1786' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1786' column='1'/>
	- <parameter type-id='type-id-290' name='a' filepath='../../module/nvpair/nvpair.c' line='1787' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/nvpair.c' line='1787' column='1'/>
	+ <function-decl name='nvlist_lookup_uint64_array' mangled-name='nvlist_lookup_uint64_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_uint64_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-290' name='a'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_string_array' mangled-name='nvlist_lookup_string_array' filepath='../../module/nvpair/nvpair.c' line='1793' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_string_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1793' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1793' column='1'/>
	- <parameter type-id='type-id-233' name='a' filepath='../../module/nvpair/nvpair.c' line='1794' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/nvpair.c' line='1794' column='1'/>
	+ <function-decl name='nvlist_lookup_string_array' mangled-name='nvlist_lookup_string_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_string_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-233' name='a'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-156' size-in-bits='64' id='type-id-291'/>
	- <function-decl name='nvlist_lookup_nvlist_array' mangled-name='nvlist_lookup_nvlist_array' filepath='../../module/nvpair/nvpair.c' line='1800' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_nvlist_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1800' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1800' column='1'/>
	- <parameter type-id='type-id-291' name='a' filepath='../../module/nvpair/nvpair.c' line='1801' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/nvpair.c' line='1801' column='1'/>
	+ <function-decl name='nvlist_lookup_nvlist_array' mangled-name='nvlist_lookup_nvlist_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_nvlist_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-291' name='a'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-117' size-in-bits='64' id='type-id-292'/>
	- <function-decl name='nvlist_lookup_hrtime' mangled-name='nvlist_lookup_hrtime' filepath='../../module/nvpair/nvpair.c' line='1807' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_hrtime'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1807' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='1807' column='1'/>
	- <parameter type-id='type-id-292' name='val' filepath='../../module/nvpair/nvpair.c' line='1807' column='1'/>
	+ <function-decl name='nvlist_lookup_hrtime' mangled-name='nvlist_lookup_hrtime' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_hrtime'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-292' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_pairs' mangled-name='nvlist_lookup_pairs' filepath='../../module/nvpair/nvpair.c' line='1813' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_pairs'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='1813' column='1'/>
	- <parameter type-id='type-id-5' name='flag' filepath='../../module/nvpair/nvpair.c' line='1813' column='1'/>
	+ <function-decl name='nvlist_lookup_pairs' mangled-name='nvlist_lookup_pairs' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_pairs'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-5' name='flag'/>
	<parameter is-variadic='yes'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-243' size-in-bits='64' id='type-id-293'/>
	- <function-decl name='nvlist_lookup_nvpair' mangled-name='nvlist_lookup_nvpair' filepath='../../module/nvpair/nvpair.c' line='2063' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_nvpair'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='2063' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='2063' column='1'/>
	- <parameter type-id='type-id-293' name='ret' filepath='../../module/nvpair/nvpair.c' line='2063' column='1'/>
	+ <function-decl name='nvlist_lookup_nvpair' mangled-name='nvlist_lookup_nvpair' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_nvpair'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-293' name='ret'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_nvpair_embedded_index' mangled-name='nvlist_lookup_nvpair_embedded_index' filepath='../../module/nvpair/nvpair.c' line='2073' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_nvpair_embedded_index'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='2073' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='2074' column='1'/>
	- <parameter type-id='type-id-293' name='ret' filepath='../../module/nvpair/nvpair.c' line='2074' column='1'/>
	- <parameter type-id='type-id-222' name='ip' filepath='../../module/nvpair/nvpair.c' line='2074' column='1'/>
	- <parameter type-id='type-id-153' name='ep' filepath='../../module/nvpair/nvpair.c' line='2074' column='1'/>
	+ <function-decl name='nvlist_lookup_nvpair_embedded_index' mangled-name='nvlist_lookup_nvpair_embedded_index' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_lookup_nvpair_embedded_index'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-293' name='ret'/>
	+ <parameter type-id='type-id-222' name='ip'/>
	+ <parameter type-id='type-id-153' name='ep'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_exists' mangled-name='nvlist_exists' filepath='../../module/nvpair/nvpair.c' line='2080' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_exists'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='2080' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/nvpair.c' line='2080' column='1'/>
	+ <function-decl name='nvlist_exists' mangled-name='nvlist_exists' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_exists'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-77'/>
	</function-decl>
	- <function-decl name='nvpair_value_boolean_value' mangled-name='nvpair_value_boolean_value' filepath='../../module/nvpair/nvpair.c' line='2101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_boolean_value'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2101' column='1'/>
	- <parameter type-id='type-id-122' name='val' filepath='../../module/nvpair/nvpair.c' line='2101' column='1'/>
	+ <function-decl name='nvpair_value_boolean_value' mangled-name='nvpair_value_boolean_value' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_boolean_value'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-122' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_byte' mangled-name='nvpair_value_byte' filepath='../../module/nvpair/nvpair.c' line='2107' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_byte'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2107' column='1'/>
	- <parameter type-id='type-id-126' name='val' filepath='../../module/nvpair/nvpair.c' line='2107' column='1'/>
	+ <function-decl name='nvpair_value_byte' mangled-name='nvpair_value_byte' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_byte'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-126' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_int8' mangled-name='nvpair_value_int8' filepath='../../module/nvpair/nvpair.c' line='2113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_int8'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2113' column='1'/>
	- <parameter type-id='type-id-129' name='val' filepath='../../module/nvpair/nvpair.c' line='2113' column='1'/>
	+ <function-decl name='nvpair_value_int8' mangled-name='nvpair_value_int8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_int8'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-129' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_uint8' mangled-name='nvpair_value_uint8' filepath='../../module/nvpair/nvpair.c' line='2119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_uint8'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2119' column='1'/>
	- <parameter type-id='type-id-132' name='val' filepath='../../module/nvpair/nvpair.c' line='2119' column='1'/>
	+ <function-decl name='nvpair_value_uint8' mangled-name='nvpair_value_uint8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_uint8'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-132' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_int16' mangled-name='nvpair_value_int16' filepath='../../module/nvpair/nvpair.c' line='2125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_int16'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2125' column='1'/>
	- <parameter type-id='type-id-135' name='val' filepath='../../module/nvpair/nvpair.c' line='2125' column='1'/>
	+ <function-decl name='nvpair_value_int16' mangled-name='nvpair_value_int16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_int16'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-135' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_uint16' mangled-name='nvpair_value_uint16' filepath='../../module/nvpair/nvpair.c' line='2131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_uint16'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2131' column='1'/>
	- <parameter type-id='type-id-138' name='val' filepath='../../module/nvpair/nvpair.c' line='2131' column='1'/>
	+ <function-decl name='nvpair_value_uint16' mangled-name='nvpair_value_uint16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_uint16'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-138' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_int32' mangled-name='nvpair_value_int32' filepath='../../module/nvpair/nvpair.c' line='2137' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_int32'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2137' column='1'/>
	- <parameter type-id='type-id-141' name='val' filepath='../../module/nvpair/nvpair.c' line='2137' column='1'/>
	+ <function-decl name='nvpair_value_int32' mangled-name='nvpair_value_int32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_int32'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-141' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_uint32' mangled-name='nvpair_value_uint32' filepath='../../module/nvpair/nvpair.c' line='2143' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_uint32'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2143' column='1'/>
	- <parameter type-id='type-id-144' name='val' filepath='../../module/nvpair/nvpair.c' line='2143' column='1'/>
	+ <function-decl name='nvpair_value_uint32' mangled-name='nvpair_value_uint32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_uint32'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-144' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_int64' mangled-name='nvpair_value_int64' filepath='../../module/nvpair/nvpair.c' line='2149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_int64'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2149' column='1'/>
	- <parameter type-id='type-id-147' name='val' filepath='../../module/nvpair/nvpair.c' line='2149' column='1'/>
	+ <function-decl name='nvpair_value_int64' mangled-name='nvpair_value_int64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_int64'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-147' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_uint64' mangled-name='nvpair_value_uint64' filepath='../../module/nvpair/nvpair.c' line='2155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_uint64'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2155' column='1'/>
	- <parameter type-id='type-id-150' name='val' filepath='../../module/nvpair/nvpair.c' line='2155' column='1'/>
	+ <function-decl name='nvpair_value_uint64' mangled-name='nvpair_value_uint64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_uint64'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-150' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_double' mangled-name='nvpair_value_double' filepath='../../module/nvpair/nvpair.c' line='2162' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_double'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2162' column='1'/>
	- <parameter type-id='type-id-241' name='val' filepath='../../module/nvpair/nvpair.c' line='2162' column='1'/>
	+ <function-decl name='nvpair_value_double' mangled-name='nvpair_value_double' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_double'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-241' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_string' mangled-name='nvpair_value_string' filepath='../../module/nvpair/nvpair.c' line='2169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_string'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2169' column='1'/>
	- <parameter type-id='type-id-153' name='val' filepath='../../module/nvpair/nvpair.c' line='2169' column='1'/>
	+ <function-decl name='nvpair_value_string' mangled-name='nvpair_value_string' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_string'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-153' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_nvlist' mangled-name='nvpair_value_nvlist' filepath='../../module/nvpair/nvpair.c' line='2175' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_nvlist'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2175' column='1'/>
	- <parameter type-id='type-id-156' name='val' filepath='../../module/nvpair/nvpair.c' line='2175' column='1'/>
	+ <function-decl name='nvpair_value_nvlist' mangled-name='nvpair_value_nvlist' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_nvlist'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-156' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_boolean_array' mangled-name='nvpair_value_boolean_array' filepath='../../module/nvpair/nvpair.c' line='2181' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_boolean_array'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2181' column='1'/>
	- <parameter type-id='type-id-280' name='val' filepath='../../module/nvpair/nvpair.c' line='2181' column='1'/>
	- <parameter type-id='type-id-281' name='nelem' filepath='../../module/nvpair/nvpair.c' line='2181' column='1'/>
	+ <function-decl name='nvpair_value_boolean_array' mangled-name='nvpair_value_boolean_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_boolean_array'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-280' name='val'/>
	+ <parameter type-id='type-id-281' name='nelem'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_byte_array' mangled-name='nvpair_value_byte_array' filepath='../../module/nvpair/nvpair.c' line='2187' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_byte_array'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2187' column='1'/>
	- <parameter type-id='type-id-282' name='val' filepath='../../module/nvpair/nvpair.c' line='2187' column='1'/>
	- <parameter type-id='type-id-281' name='nelem' filepath='../../module/nvpair/nvpair.c' line='2187' column='1'/>
	+ <function-decl name='nvpair_value_byte_array' mangled-name='nvpair_value_byte_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_byte_array'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-282' name='val'/>
	+ <parameter type-id='type-id-281' name='nelem'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_int8_array' mangled-name='nvpair_value_int8_array' filepath='../../module/nvpair/nvpair.c' line='2193' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_int8_array'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2193' column='1'/>
	- <parameter type-id='type-id-283' name='val' filepath='../../module/nvpair/nvpair.c' line='2193' column='1'/>
	- <parameter type-id='type-id-281' name='nelem' filepath='../../module/nvpair/nvpair.c' line='2193' column='1'/>
	+ <function-decl name='nvpair_value_int8_array' mangled-name='nvpair_value_int8_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_int8_array'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-283' name='val'/>
	+ <parameter type-id='type-id-281' name='nelem'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_uint8_array' mangled-name='nvpair_value_uint8_array' filepath='../../module/nvpair/nvpair.c' line='2199' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_uint8_array'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2199' column='1'/>
	- <parameter type-id='type-id-284' name='val' filepath='../../module/nvpair/nvpair.c' line='2199' column='1'/>
	- <parameter type-id='type-id-281' name='nelem' filepath='../../module/nvpair/nvpair.c' line='2199' column='1'/>
	+ <function-decl name='nvpair_value_uint8_array' mangled-name='nvpair_value_uint8_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_uint8_array'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-284' name='val'/>
	+ <parameter type-id='type-id-281' name='nelem'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_int16_array' mangled-name='nvpair_value_int16_array' filepath='../../module/nvpair/nvpair.c' line='2205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_int16_array'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2205' column='1'/>
	- <parameter type-id='type-id-285' name='val' filepath='../../module/nvpair/nvpair.c' line='2205' column='1'/>
	- <parameter type-id='type-id-281' name='nelem' filepath='../../module/nvpair/nvpair.c' line='2205' column='1'/>
	+ <function-decl name='nvpair_value_int16_array' mangled-name='nvpair_value_int16_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_int16_array'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-285' name='val'/>
	+ <parameter type-id='type-id-281' name='nelem'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_uint16_array' mangled-name='nvpair_value_uint16_array' filepath='../../module/nvpair/nvpair.c' line='2211' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_uint16_array'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2211' column='1'/>
	- <parameter type-id='type-id-286' name='val' filepath='../../module/nvpair/nvpair.c' line='2211' column='1'/>
	- <parameter type-id='type-id-281' name='nelem' filepath='../../module/nvpair/nvpair.c' line='2211' column='1'/>
	+ <function-decl name='nvpair_value_uint16_array' mangled-name='nvpair_value_uint16_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_uint16_array'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-286' name='val'/>
	+ <parameter type-id='type-id-281' name='nelem'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_int32_array' mangled-name='nvpair_value_int32_array' filepath='../../module/nvpair/nvpair.c' line='2217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_int32_array'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2217' column='1'/>
	- <parameter type-id='type-id-287' name='val' filepath='../../module/nvpair/nvpair.c' line='2217' column='1'/>
	- <parameter type-id='type-id-281' name='nelem' filepath='../../module/nvpair/nvpair.c' line='2217' column='1'/>
	+ <function-decl name='nvpair_value_int32_array' mangled-name='nvpair_value_int32_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_int32_array'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-287' name='val'/>
	+ <parameter type-id='type-id-281' name='nelem'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_uint32_array' mangled-name='nvpair_value_uint32_array' filepath='../../module/nvpair/nvpair.c' line='2223' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_uint32_array'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2223' column='1'/>
	- <parameter type-id='type-id-288' name='val' filepath='../../module/nvpair/nvpair.c' line='2223' column='1'/>
	- <parameter type-id='type-id-281' name='nelem' filepath='../../module/nvpair/nvpair.c' line='2223' column='1'/>
	+ <function-decl name='nvpair_value_uint32_array' mangled-name='nvpair_value_uint32_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_uint32_array'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-288' name='val'/>
	+ <parameter type-id='type-id-281' name='nelem'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_int64_array' mangled-name='nvpair_value_int64_array' filepath='../../module/nvpair/nvpair.c' line='2229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_int64_array'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2229' column='1'/>
	- <parameter type-id='type-id-289' name='val' filepath='../../module/nvpair/nvpair.c' line='2229' column='1'/>
	- <parameter type-id='type-id-281' name='nelem' filepath='../../module/nvpair/nvpair.c' line='2229' column='1'/>
	+ <function-decl name='nvpair_value_int64_array' mangled-name='nvpair_value_int64_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_int64_array'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-289' name='val'/>
	+ <parameter type-id='type-id-281' name='nelem'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_uint64_array' mangled-name='nvpair_value_uint64_array' filepath='../../module/nvpair/nvpair.c' line='2235' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_uint64_array'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2235' column='1'/>
	- <parameter type-id='type-id-290' name='val' filepath='../../module/nvpair/nvpair.c' line='2235' column='1'/>
	- <parameter type-id='type-id-281' name='nelem' filepath='../../module/nvpair/nvpair.c' line='2235' column='1'/>
	+ <function-decl name='nvpair_value_uint64_array' mangled-name='nvpair_value_uint64_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_uint64_array'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-290' name='val'/>
	+ <parameter type-id='type-id-281' name='nelem'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_string_array' mangled-name='nvpair_value_string_array' filepath='../../module/nvpair/nvpair.c' line='2241' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_string_array'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2241' column='1'/>
	- <parameter type-id='type-id-233' name='val' filepath='../../module/nvpair/nvpair.c' line='2241' column='1'/>
	- <parameter type-id='type-id-281' name='nelem' filepath='../../module/nvpair/nvpair.c' line='2241' column='1'/>
	+ <function-decl name='nvpair_value_string_array' mangled-name='nvpair_value_string_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_string_array'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-233' name='val'/>
	+ <parameter type-id='type-id-281' name='nelem'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_nvlist_array' mangled-name='nvpair_value_nvlist_array' filepath='../../module/nvpair/nvpair.c' line='2247' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_nvlist_array'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2247' column='1'/>
	- <parameter type-id='type-id-291' name='val' filepath='../../module/nvpair/nvpair.c' line='2247' column='1'/>
	- <parameter type-id='type-id-281' name='nelem' filepath='../../module/nvpair/nvpair.c' line='2247' column='1'/>
	+ <function-decl name='nvpair_value_nvlist_array' mangled-name='nvpair_value_nvlist_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_nvlist_array'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-291' name='val'/>
	+ <parameter type-id='type-id-281' name='nelem'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvpair_value_hrtime' mangled-name='nvpair_value_hrtime' filepath='../../module/nvpair/nvpair.c' line='2253' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_hrtime'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2253' column='1'/>
	- <parameter type-id='type-id-292' name='val' filepath='../../module/nvpair/nvpair.c' line='2253' column='1'/>
	+ <function-decl name='nvpair_value_hrtime' mangled-name='nvpair_value_hrtime' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvpair_value_hrtime'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	+ <parameter type-id='type-id-292' name='val'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_add_nvpair' mangled-name='nvlist_add_nvpair' filepath='../../module/nvpair/nvpair.c' line='2262' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_nvpair'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='2262' column='1'/>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/nvpair.c' line='2262' column='1'/>
	+ <function-decl name='nvlist_add_nvpair' mangled-name='nvlist_add_nvpair' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_add_nvpair'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='nvlist_merge' mangled-name='nvlist_merge' filepath='../../module/nvpair/nvpair.c' line='2279' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_merge'>
	- <parameter type-id='type-id-73' name='dst' filepath='../../module/nvpair/nvpair.c' line='2279' column='1'/>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='2279' column='1'/>
	- <parameter type-id='type-id-5' name='flag' filepath='../../module/nvpair/nvpair.c' line='2279' column='1'/>
	+ <function-decl name='nvlist_merge' mangled-name='nvlist_merge' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_merge'>
	+ <parameter type-id='type-id-73' name='dst'/>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-5' name='flag'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<pointer-type-def type-id='type-id-20' size-in-bits='64' id='type-id-294'/>
	- <function-decl name='nvlist_size' mangled-name='nvlist_size' filepath='../../module/nvpair/nvpair.c' line='2648' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_size'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/nvpair.c' line='2648' column='1'/>
	- <parameter type-id='type-id-294' name='size' filepath='../../module/nvpair/nvpair.c' line='2648' column='1'/>
	- <parameter type-id='type-id-5' name='encoding' filepath='../../module/nvpair/nvpair.c' line='2648' column='1'/>
	+ <function-decl name='nvlist_size' mangled-name='nvlist_size' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvlist_size'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-294' name='size'/>
	+ <parameter type-id='type-id-5' name='encoding'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <class-decl name='XDR' size-in-bits='384' is-struct='yes' visibility='default' filepath='/usr/include/rpc/xdr.h' line='110' column='1' id='type-id-295'>
	+ <class-decl name='XDR' size-in-bits='384' is-struct='yes' visibility='default' id='type-id-295'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='x_op' type-id='type-id-296' visibility='default' filepath='/usr/include/rpc/xdr.h' line='112' column='1'/>
	+ <var-decl name='x_op' type-id='type-id-296' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	- <var-decl name='x_ops' type-id='type-id-297' visibility='default' filepath='/usr/include/rpc/xdr.h' line='136' column='1'/>
	+ <var-decl name='x_ops' type-id='type-id-297' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	- <var-decl name='x_public' type-id='type-id-298' visibility='default' filepath='/usr/include/rpc/xdr.h' line='137' column='1'/>
	+ <var-decl name='x_public' type-id='type-id-298' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='192'>
	- <var-decl name='x_private' type-id='type-id-298' visibility='default' filepath='/usr/include/rpc/xdr.h' line='138' column='1'/>
	+ <var-decl name='x_private' type-id='type-id-298' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='256'>
	- <var-decl name='x_base' type-id='type-id-298' visibility='default' filepath='/usr/include/rpc/xdr.h' line='139' column='1'/>
	+ <var-decl name='x_base' type-id='type-id-298' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='320'>
	- <var-decl name='x_handy' type-id='type-id-299' visibility='default' filepath='/usr/include/rpc/xdr.h' line='140' column='1'/>
	+ <var-decl name='x_handy' type-id='type-id-299' visibility='default'/>
	</data-member>
	</class-decl>
	- <enum-decl name='xdr_op' filepath='/usr/include/rpc/xdr.h' line='81' column='1' id='type-id-296'>
	+ <enum-decl name='xdr_op' id='type-id-296'>
	<underlying-type type-id='type-id-32'/>
	<enumerator name='XDR_ENCODE' value='0'/>
	<enumerator name='XDR_DECODE' value='1'/>
	<enumerator name='XDR_FREE' value='2'/>
	</enum-decl>
	- <class-decl name='xdr_ops' size-in-bits='640' is-struct='yes' visibility='default' filepath='/usr/include/rpc/xdr.h' line='113' column='1' id='type-id-300'>
	+ <class-decl name='xdr_ops' size-in-bits='640' is-struct='yes' visibility='default' id='type-id-300'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='x_getlong' type-id='type-id-301' visibility='default' filepath='/usr/include/rpc/xdr.h' line='115' column='1'/>
	+ <var-decl name='x_getlong' type-id='type-id-301' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	- <var-decl name='x_putlong' type-id='type-id-302' visibility='default' filepath='/usr/include/rpc/xdr.h' line='117' column='1'/>
	+ <var-decl name='x_putlong' type-id='type-id-302' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	- <var-decl name='x_getbytes' type-id='type-id-303' visibility='default' filepath='/usr/include/rpc/xdr.h' line='119' column='1'/>
	+ <var-decl name='x_getbytes' type-id='type-id-303' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='192'>
	- <var-decl name='x_putbytes' type-id='type-id-304' visibility='default' filepath='/usr/include/rpc/xdr.h' line='121' column='1'/>
	+ <var-decl name='x_putbytes' type-id='type-id-304' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='256'>
	- <var-decl name='x_getpostn' type-id='type-id-305' visibility='default' filepath='/usr/include/rpc/xdr.h' line='123' column='1'/>
	+ <var-decl name='x_getpostn' type-id='type-id-305' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='320'>
	- <var-decl name='x_setpostn' type-id='type-id-306' visibility='default' filepath='/usr/include/rpc/xdr.h' line='125' column='1'/>
	+ <var-decl name='x_setpostn' type-id='type-id-306' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='384'>
	- <var-decl name='x_inline' type-id='type-id-307' visibility='default' filepath='/usr/include/rpc/xdr.h' line='127' column='1'/>
	+ <var-decl name='x_inline' type-id='type-id-307' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='448'>
	- <var-decl name='x_destroy' type-id='type-id-308' visibility='default' filepath='/usr/include/rpc/xdr.h' line='129' column='1'/>
	+ <var-decl name='x_destroy' type-id='type-id-308' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='512'>
	- <var-decl name='x_getint32' type-id='type-id-309' visibility='default' filepath='/usr/include/rpc/xdr.h' line='131' column='1'/>
	+ <var-decl name='x_getint32' type-id='type-id-309' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='576'>
	- <var-decl name='x_putint32' type-id='type-id-310' visibility='default' filepath='/usr/include/rpc/xdr.h' line='133' column='1'/>
	+ <var-decl name='x_putint32' type-id='type-id-310' visibility='default'/>
	</data-member>
	</class-decl>
	- <typedef-decl name='bool_t' type-id='type-id-5' filepath='/usr/include/rpc/types.h' line='37' column='1' id='type-id-311'/>
	- <typedef-decl name='XDR' type-id='type-id-295' filepath='/usr/include/rpc/xdr.h' line='109' column='1' id='type-id-312'/>
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	- <function-decl name='nvlist_size' filepath='../../include/sys/nvpair.h' line='153' column='1' visibility='default' binding='global' size-in-bits='64'>
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	- <parameter type-id='type-id-294' name='sizep' filepath='../../module/nvpair/fnvpair.c' line='77' column='1'/>
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	- <parameter type-id='type-id-20' name='size' filepath='../../module/nvpair/fnvpair.c' line='87' column='1'/>
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	- <parameter type-id='type-id-20' name='buflen' filepath='../../module/nvpair/fnvpair.c' line='97' column='1'/>
	+ <function-decl name='fnvlist_unpack' mangled-name='fnvlist_unpack' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_unpack'>
	+ <parameter type-id='type-id-9' name='buf'/>
	+ <parameter type-id='type-id-20' name='buflen'/>
	<return type-id='type-id-73'/>
	</function-decl>
	- <function-decl name='nvlist_unpack' filepath='../../include/sys/nvpair.h' line='155' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_unpack' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-9'/>
	<parameter type-id='type-id-29'/>
	<parameter type-id='type-id-235'/>
	<parameter type-id='type-id-5'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_dup' mangled-name='fnvlist_dup' filepath='../../module/nvpair/fnvpair.c' line='105' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_dup'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='105' column='1'/>
	+ <function-decl name='fnvlist_dup' mangled-name='fnvlist_dup' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_dup'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	<return type-id='type-id-73'/>
	</function-decl>
	- <function-decl name='nvlist_dup' filepath='../../include/sys/nvpair.h' line='156' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_dup' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-235'/>
	<parameter type-id='type-id-5'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_merge' mangled-name='fnvlist_merge' filepath='../../module/nvpair/fnvpair.c' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_merge'>
	- <parameter type-id='type-id-73' name='dst' filepath='../../module/nvpair/fnvpair.c' line='113' column='1'/>
	- <parameter type-id='type-id-73' name='src' filepath='../../module/nvpair/fnvpair.c' line='113' column='1'/>
	+ <function-decl name='fnvlist_merge' mangled-name='fnvlist_merge' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_merge'>
	+ <parameter type-id='type-id-73' name='dst'/>
	+ <parameter type-id='type-id-73' name='src'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_merge' filepath='../../include/sys/nvpair.h' line='157' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_merge' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-5'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_num_pairs' mangled-name='fnvlist_num_pairs' filepath='../../module/nvpair/fnvpair.c' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_num_pairs'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='119' column='1'/>
	+ <function-decl name='fnvlist_num_pairs' mangled-name='fnvlist_num_pairs' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_num_pairs'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	<return type-id='type-id-20'/>
	</function-decl>
	- <function-decl name='fnvlist_add_boolean' mangled-name='fnvlist_add_boolean' filepath='../../module/nvpair/fnvpair.c' line='131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_boolean'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='131' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='131' column='1'/>
	+ <function-decl name='fnvlist_add_boolean' mangled-name='fnvlist_add_boolean' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_boolean'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_boolean' filepath='../../include/sys/nvpair.h' line='168' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_boolean' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_boolean_value' mangled-name='fnvlist_add_boolean_value' filepath='../../module/nvpair/fnvpair.c' line='137' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_boolean_value'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='137' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='137' column='1'/>
	- <parameter type-id='type-id-77' name='val' filepath='../../module/nvpair/fnvpair.c' line='137' column='1'/>
	+ <function-decl name='fnvlist_add_boolean_value' mangled-name='fnvlist_add_boolean_value' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_boolean_value'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-77' name='val'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_boolean_value' filepath='../../include/sys/nvpair.h' line='169' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_boolean_value' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-76'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_byte' mangled-name='fnvlist_add_byte' filepath='../../module/nvpair/fnvpair.c' line='143' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_byte'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='143' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='143' column='1'/>
	- <parameter type-id='type-id-81' name='val' filepath='../../module/nvpair/fnvpair.c' line='143' column='1'/>
	+ <function-decl name='fnvlist_add_byte' mangled-name='fnvlist_add_byte' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_byte'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-81' name='val'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_byte' filepath='../../include/sys/nvpair.h' line='170' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_byte' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-80'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_int8' mangled-name='fnvlist_add_int8' filepath='../../module/nvpair/fnvpair.c' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_int8'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='149' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='149' column='1'/>
	- <parameter type-id='type-id-85' name='val' filepath='../../module/nvpair/fnvpair.c' line='149' column='1'/>
	+ <function-decl name='fnvlist_add_int8' mangled-name='fnvlist_add_int8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_int8'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-85' name='val'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_int8' filepath='../../include/sys/nvpair.h' line='171' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_int8' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-14'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_uint8' mangled-name='fnvlist_add_uint8' filepath='../../module/nvpair/fnvpair.c' line='155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_uint8'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='155' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='155' column='1'/>
	- <parameter type-id='type-id-89' name='val' filepath='../../module/nvpair/fnvpair.c' line='155' column='1'/>
	+ <function-decl name='fnvlist_add_uint8' mangled-name='fnvlist_add_uint8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_uint8'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-89' name='val'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint8' filepath='../../include/sys/nvpair.h' line='172' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_uint8' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-80'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_int16' mangled-name='fnvlist_add_int16' filepath='../../module/nvpair/fnvpair.c' line='161' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_int16'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='161' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='161' column='1'/>
	- <parameter type-id='type-id-94' name='val' filepath='../../module/nvpair/fnvpair.c' line='161' column='1'/>
	+ <function-decl name='fnvlist_add_int16' mangled-name='fnvlist_add_int16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_int16'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-94' name='val'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_int16' filepath='../../include/sys/nvpair.h' line='173' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_int16' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-92'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_uint16' mangled-name='fnvlist_add_uint16' filepath='../../module/nvpair/fnvpair.c' line='167' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_uint16'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='167' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='167' column='1'/>
	- <parameter type-id='type-id-98' name='val' filepath='../../module/nvpair/fnvpair.c' line='167' column='1'/>
	+ <function-decl name='fnvlist_add_uint16' mangled-name='fnvlist_add_uint16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_uint16'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-98' name='val'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint16' filepath='../../include/sys/nvpair.h' line='174' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_uint16' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-13'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_int32' mangled-name='fnvlist_add_int32' filepath='../../module/nvpair/fnvpair.c' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_int32'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='173' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='173' column='1'/>
	- <parameter type-id='type-id-65' name='val' filepath='../../module/nvpair/fnvpair.c' line='173' column='1'/>
	+ <function-decl name='fnvlist_add_int32' mangled-name='fnvlist_add_int32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_int32'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-65' name='val'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_int32' filepath='../../include/sys/nvpair.h' line='175' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_int32' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-5'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_uint32' mangled-name='fnvlist_add_uint32' filepath='../../module/nvpair/fnvpair.c' line='179' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_uint32'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='179' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='179' column='1'/>
	- <parameter type-id='type-id-66' name='val' filepath='../../module/nvpair/fnvpair.c' line='179' column='1'/>
	+ <function-decl name='fnvlist_add_uint32' mangled-name='fnvlist_add_uint32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_uint32'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-66' name='val'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint32' filepath='../../include/sys/nvpair.h' line='176' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_uint32' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-69'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_int64' mangled-name='fnvlist_add_int64' filepath='../../module/nvpair/fnvpair.c' line='185' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_int64'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='185' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='185' column='1'/>
	- <parameter type-id='type-id-106' name='val' filepath='../../module/nvpair/fnvpair.c' line='185' column='1'/>
	+ <function-decl name='fnvlist_add_int64' mangled-name='fnvlist_add_int64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_int64'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-106' name='val'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_int64' filepath='../../include/sys/nvpair.h' line='177' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_int64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-24'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_uint64' mangled-name='fnvlist_add_uint64' filepath='../../module/nvpair/fnvpair.c' line='191' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_uint64'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='191' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='191' column='1'/>
	- <parameter type-id='type-id-67' name='val' filepath='../../module/nvpair/fnvpair.c' line='191' column='1'/>
	+ <function-decl name='fnvlist_add_uint64' mangled-name='fnvlist_add_uint64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_uint64'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-67' name='val'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint64' filepath='../../include/sys/nvpair.h' line='178' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_uint64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-29'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_string' mangled-name='fnvlist_add_string' filepath='../../module/nvpair/fnvpair.c' line='197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_string'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='197' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='197' column='1'/>
	- <parameter type-id='type-id-6' name='val' filepath='../../module/nvpair/fnvpair.c' line='197' column='1'/>
	+ <function-decl name='fnvlist_add_string' mangled-name='fnvlist_add_string' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_string'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-6' name='val'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_string' filepath='../../include/sys/nvpair.h' line='179' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_string' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-6'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_nvlist' mangled-name='fnvlist_add_nvlist' filepath='../../module/nvpair/fnvpair.c' line='203' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_nvlist'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='203' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='203' column='1'/>
	- <parameter type-id='type-id-73' name='val' filepath='../../module/nvpair/fnvpair.c' line='203' column='1'/>
	+ <function-decl name='fnvlist_add_nvlist' mangled-name='fnvlist_add_nvlist' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_nvlist'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-73' name='val'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_nvlist' filepath='../../include/sys/nvpair.h' line='180' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_nvlist' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-218'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_nvpair' mangled-name='fnvlist_add_nvpair' filepath='../../module/nvpair/fnvpair.c' line='209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_nvpair'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='209' column='1'/>
	- <parameter type-id='type-id-243' name='pair' filepath='../../module/nvpair/fnvpair.c' line='209' column='1'/>
	+ <function-decl name='fnvlist_add_nvpair' mangled-name='fnvlist_add_nvpair' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_nvpair'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-243' name='pair'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_nvpair' filepath='../../include/sys/nvpair.h' line='167' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_nvpair' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-217'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_boolean_array' mangled-name='fnvlist_add_boolean_array' filepath='../../module/nvpair/fnvpair.c' line='215' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_boolean_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='215' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='215' column='1'/>
	- <parameter type-id='type-id-122' name='val' filepath='../../module/nvpair/fnvpair.c' line='216' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/fnvpair.c' line='216' column='1'/>
	+ <function-decl name='fnvlist_add_boolean_array' mangled-name='fnvlist_add_boolean_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_boolean_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-122' name='val'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_boolean_array' filepath='../../include/sys/nvpair.h' line='181' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_boolean_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-237'/>
	<parameter type-id='type-id-69'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_byte_array' mangled-name='fnvlist_add_byte_array' filepath='../../module/nvpair/fnvpair.c' line='222' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_byte_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='222' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='222' column='1'/>
	- <parameter type-id='type-id-126' name='val' filepath='../../module/nvpair/fnvpair.c' line='222' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/fnvpair.c' line='222' column='1'/>
	+ <function-decl name='fnvlist_add_byte_array' mangled-name='fnvlist_add_byte_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_byte_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-126' name='val'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_byte_array' filepath='../../include/sys/nvpair.h' line='182' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_byte_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-219'/>
	<parameter type-id='type-id-69'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_int8_array' mangled-name='fnvlist_add_int8_array' filepath='../../module/nvpair/fnvpair.c' line='228' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_int8_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='228' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='228' column='1'/>
	- <parameter type-id='type-id-129' name='val' filepath='../../module/nvpair/fnvpair.c' line='228' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/fnvpair.c' line='228' column='1'/>
	+ <function-decl name='fnvlist_add_int8_array' mangled-name='fnvlist_add_int8_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_int8_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-129' name='val'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_int8_array' filepath='../../include/sys/nvpair.h' line='183' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_int8_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-238'/>
	<parameter type-id='type-id-69'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_uint8_array' mangled-name='fnvlist_add_uint8_array' filepath='../../module/nvpair/fnvpair.c' line='234' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_uint8_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='234' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='234' column='1'/>
	- <parameter type-id='type-id-132' name='val' filepath='../../module/nvpair/fnvpair.c' line='234' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/fnvpair.c' line='234' column='1'/>
	+ <function-decl name='fnvlist_add_uint8_array' mangled-name='fnvlist_add_uint8_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_uint8_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-132' name='val'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint8_array' filepath='../../include/sys/nvpair.h' line='184' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_uint8_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-219'/>
	<parameter type-id='type-id-69'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_int16_array' mangled-name='fnvlist_add_int16_array' filepath='../../module/nvpair/fnvpair.c' line='240' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_int16_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='240' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='240' column='1'/>
	- <parameter type-id='type-id-135' name='val' filepath='../../module/nvpair/fnvpair.c' line='240' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/fnvpair.c' line='240' column='1'/>
	+ <function-decl name='fnvlist_add_int16_array' mangled-name='fnvlist_add_int16_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_int16_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-135' name='val'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_int16_array' filepath='../../include/sys/nvpair.h' line='185' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_int16_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-220'/>
	<parameter type-id='type-id-69'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_uint16_array' mangled-name='fnvlist_add_uint16_array' filepath='../../module/nvpair/fnvpair.c' line='246' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_uint16_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='246' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='246' column='1'/>
	- <parameter type-id='type-id-138' name='val' filepath='../../module/nvpair/fnvpair.c' line='247' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/fnvpair.c' line='247' column='1'/>
	+ <function-decl name='fnvlist_add_uint16_array' mangled-name='fnvlist_add_uint16_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_uint16_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-138' name='val'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint16_array' filepath='../../include/sys/nvpair.h' line='186' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_uint16_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-221'/>
	<parameter type-id='type-id-69'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_int32_array' mangled-name='fnvlist_add_int32_array' filepath='../../module/nvpair/fnvpair.c' line='253' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_int32_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='253' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='253' column='1'/>
	- <parameter type-id='type-id-141' name='val' filepath='../../module/nvpair/fnvpair.c' line='253' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/fnvpair.c' line='253' column='1'/>
	+ <function-decl name='fnvlist_add_int32_array' mangled-name='fnvlist_add_int32_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_int32_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-141' name='val'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_int32_array' filepath='../../include/sys/nvpair.h' line='187' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_int32_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-222'/>
	<parameter type-id='type-id-69'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_uint32_array' mangled-name='fnvlist_add_uint32_array' filepath='../../module/nvpair/fnvpair.c' line='259' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_uint32_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='259' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='259' column='1'/>
	- <parameter type-id='type-id-144' name='val' filepath='../../module/nvpair/fnvpair.c' line='260' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/fnvpair.c' line='260' column='1'/>
	+ <function-decl name='fnvlist_add_uint32_array' mangled-name='fnvlist_add_uint32_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_uint32_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-144' name='val'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint32_array' filepath='../../include/sys/nvpair.h' line='188' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_uint32_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-223'/>
	<parameter type-id='type-id-69'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_int64_array' mangled-name='fnvlist_add_int64_array' filepath='../../module/nvpair/fnvpair.c' line='266' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_int64_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='266' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='266' column='1'/>
	- <parameter type-id='type-id-147' name='val' filepath='../../module/nvpair/fnvpair.c' line='266' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/fnvpair.c' line='266' column='1'/>
	+ <function-decl name='fnvlist_add_int64_array' mangled-name='fnvlist_add_int64_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_int64_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-147' name='val'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_int64_array' filepath='../../include/sys/nvpair.h' line='189' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_int64_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-224'/>
	<parameter type-id='type-id-69'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_uint64_array' mangled-name='fnvlist_add_uint64_array' filepath='../../module/nvpair/fnvpair.c' line='272' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_uint64_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='272' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='272' column='1'/>
	- <parameter type-id='type-id-150' name='val' filepath='../../module/nvpair/fnvpair.c' line='273' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/fnvpair.c' line='273' column='1'/>
	+ <function-decl name='fnvlist_add_uint64_array' mangled-name='fnvlist_add_uint64_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_uint64_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-150' name='val'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint64_array' filepath='../../include/sys/nvpair.h' line='190' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_uint64_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-225'/>
	<parameter type-id='type-id-69'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_string_array' mangled-name='fnvlist_add_string_array' filepath='../../module/nvpair/fnvpair.c' line='279' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_string_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='279' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='279' column='1'/>
	- <parameter type-id='type-id-279' name='val' filepath='../../module/nvpair/fnvpair.c' line='280' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/fnvpair.c' line='280' column='1'/>
	+ <function-decl name='fnvlist_add_string_array' mangled-name='fnvlist_add_string_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_string_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-279' name='val'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_string_array' filepath='../../include/sys/nvpair.h' line='191' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_string_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-279'/>
	<parameter type-id='type-id-69'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_nvlist_array' mangled-name='fnvlist_add_nvlist_array' filepath='../../module/nvpair/fnvpair.c' line='286' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_nvlist_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='286' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='286' column='1'/>
	- <parameter type-id='type-id-156' name='val' filepath='../../module/nvpair/fnvpair.c' line='287' column='1'/>
	- <parameter type-id='type-id-123' name='n' filepath='../../module/nvpair/fnvpair.c' line='287' column='1'/>
	+ <function-decl name='fnvlist_add_nvlist_array' mangled-name='fnvlist_add_nvlist_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_add_nvlist_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-156' name='val'/>
	+ <parameter type-id='type-id-123' name='n'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_nvlist_array' filepath='../../include/sys/nvpair.h' line='192' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_nvlist_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-235'/>
	<parameter type-id='type-id-69'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_remove' mangled-name='fnvlist_remove' filepath='../../module/nvpair/fnvpair.c' line='293' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_remove'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='131' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='131' column='1'/>
	+ <function-decl name='fnvlist_remove' mangled-name='fnvlist_remove' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_remove'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_remove_all' filepath='../../include/sys/nvpair.h' line='199' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_remove_all' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_remove_nvpair' mangled-name='fnvlist_remove_nvpair' filepath='../../module/nvpair/fnvpair.c' line='299' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_remove_nvpair'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='209' column='1'/>
	- <parameter type-id='type-id-243' name='pair' filepath='../../module/nvpair/fnvpair.c' line='209' column='1'/>
	+ <function-decl name='fnvlist_remove_nvpair' mangled-name='fnvlist_remove_nvpair' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_remove_nvpair'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-243' name='pair'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_remove_nvpair' filepath='../../include/sys/nvpair.h' line='200' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_remove_nvpair' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-217'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_nvpair' mangled-name='fnvlist_lookup_nvpair' filepath='../../module/nvpair/fnvpair.c' line='305' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_nvpair'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='305' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='305' column='1'/>
	+ <function-decl name='fnvlist_lookup_nvpair' mangled-name='fnvlist_lookup_nvpair' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_nvpair'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-243'/>
	</function-decl>
	<pointer-type-def type-id='type-id-217' size-in-bits='64' id='type-id-334'/>
	- <function-decl name='nvlist_lookup_nvpair' filepath='../../include/sys/nvpair.h' line='235' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_nvpair' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-334'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_boolean' mangled-name='fnvlist_lookup_boolean' filepath='../../module/nvpair/fnvpair.c' line='314' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_boolean'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='314' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='314' column='1'/>
	+ <function-decl name='fnvlist_lookup_boolean' mangled-name='fnvlist_lookup_boolean' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_boolean'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-77'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_boolean' filepath='../../include/sys/nvpair.h' line='202' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_boolean' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_boolean_value' mangled-name='fnvlist_lookup_boolean_value' filepath='../../module/nvpair/fnvpair.c' line='320' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_boolean_value'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='320' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='320' column='1'/>
	+ <function-decl name='fnvlist_lookup_boolean_value' mangled-name='fnvlist_lookup_boolean_value' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_boolean_value'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-77'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_boolean_value' filepath='../../include/sys/nvpair.h' line='203' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_boolean_value' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-237'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_byte' mangled-name='fnvlist_lookup_byte' filepath='../../module/nvpair/fnvpair.c' line='328' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_byte'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='328' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='328' column='1'/>
	+ <function-decl name='fnvlist_lookup_byte' mangled-name='fnvlist_lookup_byte' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_byte'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-81'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_byte' filepath='../../include/sys/nvpair.h' line='204' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_byte' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-219'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_int8' mangled-name='fnvlist_lookup_int8' filepath='../../module/nvpair/fnvpair.c' line='336' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_int8'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='336' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='336' column='1'/>
	+ <function-decl name='fnvlist_lookup_int8' mangled-name='fnvlist_lookup_int8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_int8'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-85'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_int8' filepath='../../include/sys/nvpair.h' line='205' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_int8' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-238'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_int16' mangled-name='fnvlist_lookup_int16' filepath='../../module/nvpair/fnvpair.c' line='344' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_int16'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='344' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='344' column='1'/>
	+ <function-decl name='fnvlist_lookup_int16' mangled-name='fnvlist_lookup_int16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_int16'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-94'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_int16' filepath='../../include/sys/nvpair.h' line='207' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_int16' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-220'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_int32' mangled-name='fnvlist_lookup_int32' filepath='../../module/nvpair/fnvpair.c' line='352' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_int32'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='352' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='352' column='1'/>
	+ <function-decl name='fnvlist_lookup_int32' mangled-name='fnvlist_lookup_int32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_int32'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-65'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_int32' filepath='../../include/sys/nvpair.h' line='209' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_int32' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-222'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_int64' mangled-name='fnvlist_lookup_int64' filepath='../../module/nvpair/fnvpair.c' line='360' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_int64'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='360' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='360' column='1'/>
	+ <function-decl name='fnvlist_lookup_int64' mangled-name='fnvlist_lookup_int64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_int64'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-106'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_int64' filepath='../../include/sys/nvpair.h' line='211' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_int64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-224'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_uint8' mangled-name='fnvlist_lookup_uint8' filepath='../../module/nvpair/fnvpair.c' line='368' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_uint8'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='368' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='368' column='1'/>
	+ <function-decl name='fnvlist_lookup_uint8' mangled-name='fnvlist_lookup_uint8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_uint8'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-89'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_uint8' filepath='../../include/sys/nvpair.h' line='206' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_uint8' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-219'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_uint16' mangled-name='fnvlist_lookup_uint16' filepath='../../module/nvpair/fnvpair.c' line='376' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_uint16'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='376' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='376' column='1'/>
	+ <function-decl name='fnvlist_lookup_uint16' mangled-name='fnvlist_lookup_uint16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_uint16'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-98'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_uint16' filepath='../../include/sys/nvpair.h' line='208' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_uint16' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-221'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_uint32' mangled-name='fnvlist_lookup_uint32' filepath='../../module/nvpair/fnvpair.c' line='384' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_uint32'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='384' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='384' column='1'/>
	+ <function-decl name='fnvlist_lookup_uint32' mangled-name='fnvlist_lookup_uint32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_uint32'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-66'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_uint32' filepath='../../include/sys/nvpair.h' line='210' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_uint32' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_uint64' mangled-name='fnvlist_lookup_uint64' filepath='../../module/nvpair/fnvpair.c' line='392' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_uint64'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='392' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='392' column='1'/>
	+ <function-decl name='fnvlist_lookup_uint64' mangled-name='fnvlist_lookup_uint64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_uint64'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-67'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_uint64' filepath='../../include/sys/nvpair.h' line='212' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_uint64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-225'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_string' mangled-name='fnvlist_lookup_string' filepath='../../module/nvpair/fnvpair.c' line='400' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_string'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='400' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='400' column='1'/>
	+ <function-decl name='fnvlist_lookup_string' mangled-name='fnvlist_lookup_string' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_string'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-9'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_string' filepath='../../include/sys/nvpair.h' line='213' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_string' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-153'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_nvlist' mangled-name='fnvlist_lookup_nvlist' filepath='../../module/nvpair/fnvpair.c' line='408' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_nvlist'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='408' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='408' column='1'/>
	+ <function-decl name='fnvlist_lookup_nvlist' mangled-name='fnvlist_lookup_nvlist' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_nvlist'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	<return type-id='type-id-73'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_nvlist' filepath='../../include/sys/nvpair.h' line='214' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_nvlist' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-235'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_boolean_array' mangled-name='fnvlist_lookup_boolean_array' filepath='../../module/nvpair/fnvpair.c' line='415' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_boolean_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='415' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='415' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/fnvpair.c' line='415' column='1'/>
	+ <function-decl name='fnvlist_lookup_boolean_array' mangled-name='fnvlist_lookup_boolean_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_boolean_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-122'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_boolean_array' filepath='../../include/sys/nvpair.h' line='215' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_boolean_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-239'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_byte_array' mangled-name='fnvlist_lookup_byte_array' filepath='../../module/nvpair/fnvpair.c' line='423' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_byte_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='423' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='423' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/fnvpair.c' line='423' column='1'/>
	+ <function-decl name='fnvlist_lookup_byte_array' mangled-name='fnvlist_lookup_byte_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_byte_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-126'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_byte_array' filepath='../../include/sys/nvpair.h' line='217' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_byte_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-226'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_int8_array' mangled-name='fnvlist_lookup_int8_array' filepath='../../module/nvpair/fnvpair.c' line='431' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_int8_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='431' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='431' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/fnvpair.c' line='431' column='1'/>
	+ <function-decl name='fnvlist_lookup_int8_array' mangled-name='fnvlist_lookup_int8_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_int8_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-129'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_int8_array' filepath='../../include/sys/nvpair.h' line='218' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_int8_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-240'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_uint8_array' mangled-name='fnvlist_lookup_uint8_array' filepath='../../module/nvpair/fnvpair.c' line='439' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_uint8_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='439' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='439' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/fnvpair.c' line='439' column='1'/>
	+ <function-decl name='fnvlist_lookup_uint8_array' mangled-name='fnvlist_lookup_uint8_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_uint8_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-132'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_uint8_array' filepath='../../include/sys/nvpair.h' line='219' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_uint8_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-226'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_int16_array' mangled-name='fnvlist_lookup_int16_array' filepath='../../module/nvpair/fnvpair.c' line='447' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_int16_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='447' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='447' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/fnvpair.c' line='447' column='1'/>
	+ <function-decl name='fnvlist_lookup_int16_array' mangled-name='fnvlist_lookup_int16_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_int16_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-135'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_int16_array' filepath='../../include/sys/nvpair.h' line='220' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_int16_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-227'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_uint16_array' mangled-name='fnvlist_lookup_uint16_array' filepath='../../module/nvpair/fnvpair.c' line='455' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_uint16_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='455' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='455' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/fnvpair.c' line='455' column='1'/>
	+ <function-decl name='fnvlist_lookup_uint16_array' mangled-name='fnvlist_lookup_uint16_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_uint16_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-138'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_uint16_array' filepath='../../include/sys/nvpair.h' line='221' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_uint16_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-228'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_int32_array' mangled-name='fnvlist_lookup_int32_array' filepath='../../module/nvpair/fnvpair.c' line='463' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_int32_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='463' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='463' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/fnvpair.c' line='463' column='1'/>
	+ <function-decl name='fnvlist_lookup_int32_array' mangled-name='fnvlist_lookup_int32_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_int32_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-141'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_int32_array' filepath='../../include/sys/nvpair.h' line='222' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_int32_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-229'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_uint32_array' mangled-name='fnvlist_lookup_uint32_array' filepath='../../module/nvpair/fnvpair.c' line='471' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_uint32_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='471' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='471' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/fnvpair.c' line='471' column='1'/>
	+ <function-decl name='fnvlist_lookup_uint32_array' mangled-name='fnvlist_lookup_uint32_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_uint32_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-144'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_uint32_array' filepath='../../include/sys/nvpair.h' line='223' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_uint32_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-230'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_int64_array' mangled-name='fnvlist_lookup_int64_array' filepath='../../module/nvpair/fnvpair.c' line='479' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_int64_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='479' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='479' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/fnvpair.c' line='479' column='1'/>
	+ <function-decl name='fnvlist_lookup_int64_array' mangled-name='fnvlist_lookup_int64_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_int64_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-147'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_int64_array' filepath='../../include/sys/nvpair.h' line='224' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_int64_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-231'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_uint64_array' mangled-name='fnvlist_lookup_uint64_array' filepath='../../module/nvpair/fnvpair.c' line='487' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_uint64_array'>
	- <parameter type-id='type-id-73' name='nvl' filepath='../../module/nvpair/fnvpair.c' line='487' column='1'/>
	- <parameter type-id='type-id-6' name='name' filepath='../../module/nvpair/fnvpair.c' line='487' column='1'/>
	- <parameter type-id='type-id-281' name='n' filepath='../../module/nvpair/fnvpair.c' line='487' column='1'/>
	+ <function-decl name='fnvlist_lookup_uint64_array' mangled-name='fnvlist_lookup_uint64_array' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvlist_lookup_uint64_array'>
	+ <parameter type-id='type-id-73' name='nvl'/>
	+ <parameter type-id='type-id-6' name='name'/>
	+ <parameter type-id='type-id-281' name='n'/>
	<return type-id='type-id-150'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_uint64_array' filepath='../../include/sys/nvpair.h' line='225' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_uint64_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-218'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-232'/>
	<parameter type-id='type-id-223'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvpair_value_boolean_value' mangled-name='fnvpair_value_boolean_value' filepath='../../module/nvpair/fnvpair.c' line='495' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_boolean_value'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/fnvpair.c' line='495' column='1'/>
	+ <function-decl name='fnvpair_value_boolean_value' mangled-name='fnvpair_value_boolean_value' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_boolean_value'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-77'/>
	</function-decl>
	- <function-decl name='fnvpair_value_byte' mangled-name='fnvpair_value_byte' filepath='../../module/nvpair/fnvpair.c' line='503' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_byte'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/fnvpair.c' line='503' column='1'/>
	+ <function-decl name='fnvpair_value_byte' mangled-name='fnvpair_value_byte' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_byte'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-81'/>
	</function-decl>
	- <function-decl name='fnvpair_value_int8' mangled-name='fnvpair_value_int8' filepath='../../module/nvpair/fnvpair.c' line='511' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_int8'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/fnvpair.c' line='511' column='1'/>
	+ <function-decl name='fnvpair_value_int8' mangled-name='fnvpair_value_int8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_int8'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-85'/>
	</function-decl>
	- <function-decl name='fnvpair_value_int16' mangled-name='fnvpair_value_int16' filepath='../../module/nvpair/fnvpair.c' line='519' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_int16'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/fnvpair.c' line='519' column='1'/>
	+ <function-decl name='fnvpair_value_int16' mangled-name='fnvpair_value_int16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_int16'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-94'/>
	</function-decl>
	- <function-decl name='fnvpair_value_int32' mangled-name='fnvpair_value_int32' filepath='../../module/nvpair/fnvpair.c' line='527' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_int32'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/fnvpair.c' line='527' column='1'/>
	+ <function-decl name='fnvpair_value_int32' mangled-name='fnvpair_value_int32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_int32'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-65'/>
	</function-decl>
	- <function-decl name='fnvpair_value_int64' mangled-name='fnvpair_value_int64' filepath='../../module/nvpair/fnvpair.c' line='535' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_int64'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/fnvpair.c' line='535' column='1'/>
	+ <function-decl name='fnvpair_value_int64' mangled-name='fnvpair_value_int64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_int64'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-106'/>
	</function-decl>
	- <function-decl name='fnvpair_value_uint8' mangled-name='fnvpair_value_uint8' filepath='../../module/nvpair/fnvpair.c' line='543' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_uint8'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/fnvpair.c' line='543' column='1'/>
	+ <function-decl name='fnvpair_value_uint8' mangled-name='fnvpair_value_uint8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_uint8'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-89'/>
	</function-decl>
	- <function-decl name='fnvpair_value_uint16' mangled-name='fnvpair_value_uint16' filepath='../../module/nvpair/fnvpair.c' line='551' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_uint16'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/fnvpair.c' line='551' column='1'/>
	+ <function-decl name='fnvpair_value_uint16' mangled-name='fnvpair_value_uint16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_uint16'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-98'/>
	</function-decl>
	- <function-decl name='fnvpair_value_uint32' mangled-name='fnvpair_value_uint32' filepath='../../module/nvpair/fnvpair.c' line='559' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_uint32'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/fnvpair.c' line='559' column='1'/>
	+ <function-decl name='fnvpair_value_uint32' mangled-name='fnvpair_value_uint32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_uint32'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-66'/>
	</function-decl>
	- <function-decl name='fnvpair_value_uint64' mangled-name='fnvpair_value_uint64' filepath='../../module/nvpair/fnvpair.c' line='567' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_uint64'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/fnvpair.c' line='567' column='1'/>
	+ <function-decl name='fnvpair_value_uint64' mangled-name='fnvpair_value_uint64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_uint64'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-67'/>
	</function-decl>
	- <function-decl name='fnvpair_value_string' mangled-name='fnvpair_value_string' filepath='../../module/nvpair/fnvpair.c' line='575' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_string'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/fnvpair.c' line='575' column='1'/>
	+ <function-decl name='fnvpair_value_string' mangled-name='fnvpair_value_string' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_string'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-9'/>
	</function-decl>
	- <function-decl name='fnvpair_value_nvlist' mangled-name='fnvpair_value_nvlist' filepath='../../module/nvpair/fnvpair.c' line='583' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_nvlist'>
	- <parameter type-id='type-id-243' name='nvp' filepath='../../module/nvpair/fnvpair.c' line='583' column='1'/>
	+ <function-decl name='fnvpair_value_nvlist' mangled-name='fnvpair_value_nvlist' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fnvpair_value_nvlist'>
	+ <parameter type-id='type-id-243' name='nvp'/>
	<return type-id='type-id-73'/>
	</function-decl>
	</abi-instr>
	- <abi-instr version='1.0' address-size='64' path='assert.c' comp-dir-path='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl' language='LANG_C99'>
	- <var-decl name='libspl_assert_ok' type-id='type-id-5' mangled-name='libspl_assert_ok' visibility='default' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/assert.c' line='28' column='1' elf-symbol-id='libspl_assert_ok'/>
	+ <abi-instr version='1.0' address-size='64' path='assert.c' comp-dir-path='/home/nabijaczleweli/store/code/zfs/lib/libspl' language='LANG_C99'>
	+ <var-decl name='libspl_assert_ok' type-id='type-id-5' mangled-name='libspl_assert_ok' visibility='default' elf-symbol-id='libspl_assert_ok'/>
	</abi-instr>
	</abi-corpus>
	diff --git a/sys/contrib/openzfs/lib/libshare/Makefile.am b/sys/contrib/openzfs/lib/libshare/Makefile.am
	index e42609c6496d..dff3e5382d6e 100644
	--- a/sys/contrib/openzfs/lib/libshare/Makefile.am
	+++ b/sys/contrib/openzfs/lib/libshare/Makefile.am
	@@ -1,28 +1,30 @@
	include $(top_srcdir)/config/Rules.am

	DEFAULT_INCLUDES += -I$(srcdir)

	+AM_CFLAGS += -fvisibility=hidden
	+
	noinst_LTLIBRARIES = libshare.la

	USER_C = \
	libshare_impl.h \
	libshare.c \
	nfs.c \
	nfs.h \
	smb.h

	if BUILD_LINUX
	USER_C += \
	os/linux/nfs.c \
	os/linux/smb.c
	endif

	if BUILD_FREEBSD
	USER_C += \
	os/freebsd/nfs.c \
	os/freebsd/smb.c
	endif

	libshare_la_SOURCES = $(USER_C)

	include $(top_srcdir)/config/CppCheck.am
	diff --git a/sys/contrib/openzfs/lib/libshare/nfs.c b/sys/contrib/openzfs/lib/libshare/nfs.c
	index 44d3e93d42f0..e339ebc81f1b 100644
	--- a/sys/contrib/openzfs/lib/libshare/nfs.c
	+++ b/sys/contrib/openzfs/lib/libshare/nfs.c
	@@ -1,157 +1,157 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/


	#include <sys/types.h>
	#include <sys/stat.h>
	#include <sys/file.h>
	#include <fcntl.h>
	#include <stdio.h>
	#include <errno.h>
	#include <libshare.h>
	#include "nfs.h"


	static int nfs_lock_fd = -1;


	/*
	* nfs_exports_[lock\|unlock] are used to guard against conconcurrent
	* updates to the exports file. Each protocol is responsible for
	* providing the necessary locking to ensure consistency.
	*/
	static int
	nfs_exports_lock(const char *name)
	{
	int err;

	nfs_lock_fd = open(name, O_RDWR \| O_CREAT \| O_CLOEXEC, 0600);
	if (nfs_lock_fd == -1) {
	err = errno;
	fprintf(stderr, "failed to lock %s: %s\n", name, strerror(err));
	return (err);
	}

	if (flock(nfs_lock_fd, LOCK_EX) != 0) {
	err = errno;
	fprintf(stderr, "failed to lock %s: %s\n", name, strerror(err));
	(void) close(nfs_lock_fd);
	nfs_lock_fd = -1;
	return (err);
	}

	return (0);
	}

	static void
	nfs_exports_unlock(const char *name)
	{
	verify(nfs_lock_fd > 0);

	if (flock(nfs_lock_fd, LOCK_UN) != 0) {
	fprintf(stderr, "failed to unlock %s: %s\n",
	name, strerror(errno));
	}

	(void) close(nfs_lock_fd);
	nfs_lock_fd = -1;
	}

	static char *
	nfs_init_tmpfile(const char prefix, const char mdir)
	{
	char *tmpfile = NULL;
	struct stat sb;

	if (mdir != NULL &&
	stat(mdir, &sb) < 0 &&
	mkdir(mdir, 0755) < 0) {
	fprintf(stderr, "failed to create %s: %s\n",
	mdir, strerror(errno));
	return (NULL);
	}

	if (asprintf(&tmpfile, "%s.XXXXXXXX", prefix) == -1) {
	fprintf(stderr, "Unable to allocate temporary file\n");
	return (NULL);
	}

	int fd = mkostemp(tmpfile, O_CLOEXEC);
	if (fd == -1) {
	fprintf(stderr, "Unable to create temporary file: %s",
	strerror(errno));
	free(tmpfile);
	return (NULL);
	}
	close(fd);
	return (tmpfile);
	}

	static int
	nfs_fini_tmpfile(const char exports, char tmpfile)
	{
	if (rename(tmpfile, exports) == -1) {
	fprintf(stderr, "Unable to rename %s: %s\n", tmpfile,
	strerror(errno));
	unlink(tmpfile);
	free(tmpfile);
	return (SA_SYSTEM_ERR);
	}
	free(tmpfile);
	return (SA_OK);
	}

	-__attribute__((visibility("hidden"))) int
	+int
	nfs_toggle_share(const char lockfile, const char exports,
	const char *expdir, sa_share_impl_t impl_share,
	int(cbk)(sa_share_impl_t impl_share, char filename))
	{
	int error;
	char *filename;

	if ((filename = nfs_init_tmpfile(exports, expdir)) == NULL)
	return (SA_SYSTEM_ERR);

	error = nfs_exports_lock(lockfile);
	if (error != 0) {
	unlink(filename);
	free(filename);
	return (error);
	}

	error = nfs_copy_entries(filename, impl_share->sa_mountpoint);
	if (error != SA_OK)
	goto fullerr;

	error = cbk(impl_share, filename);
	if (error != SA_OK)
	goto fullerr;

	error = nfs_fini_tmpfile(exports, filename);
	nfs_exports_unlock(lockfile);
	return (error);

	fullerr:
	unlink(filename);
	free(filename);
	nfs_exports_unlock(lockfile);
	return (error);
	}
	diff --git a/sys/contrib/openzfs/lib/libshare/os/freebsd/nfs.c b/sys/contrib/openzfs/lib/libshare/os/freebsd/nfs.c
	index b82491f2ebe8..0041bc228bb5 100644
	--- a/sys/contrib/openzfs/lib/libshare/os/freebsd/nfs.c
	+++ b/sys/contrib/openzfs/lib/libshare/os/freebsd/nfs.c
	@@ -1,342 +1,342 @@
	/*
	* Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
	* All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.
	*
	* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	* SUCH DAMAGE.
	*
	* Copyright (c) 2020 by Delphix. All rights reserved.
	*/

	#include <sys/cdefs.h>
	__FBSDID("$FreeBSD$");

	#include <sys/param.h>
	#include <sys/vfs.h>

	#include <assert.h>
	#include <errno.h>
	#include <fcntl.h>
	#include <libutil.h>
	#include <signal.h>
	#include <stdio.h>
	#include <string.h>
	#include <unistd.h>
	#include <libintl.h>

	#include <libshare.h>
	#include "libshare_impl.h"
	#include "nfs.h"

	#define _PATH_MOUNTDPID "/var/run/mountd.pid"
	#define OPTSSIZE 1024
	#define MAXLINESIZE (PATH_MAX + OPTSSIZE)
	#define ZFS_EXPORTS_FILE "/etc/zfs/exports"
	#define ZFS_EXPORTS_LOCK ZFS_EXPORTS_FILE".lock"

	static sa_fstype_t *nfs_fstype;

	/*
	* Read one line from a file. Skip comments, empty lines and a line with a
	* mountpoint specified in the 'skip' argument.
	*
	* NOTE: This function returns a static buffer and thus is not thread-safe.
	*/
	static char *
	zgetline(FILE fd, const char skip)
	{
	static char line[MAXLINESIZE];
	size_t len, skiplen = 0;
	char *s, last;

	if (skip != NULL)
	skiplen = strlen(skip);
	for (;;) {
	s = fgets(line, sizeof (line), fd);
	if (s == NULL)
	return (NULL);
	/* Skip empty lines and comments. */
	if (line[0] == '\n' \|\| line[0] == '#')
	continue;
	len = strlen(line);
	if (line[len - 1] == '\n')
	line[len - 1] = '\0';
	last = line[skiplen];
	/* Skip the given mountpoint. */
	if (skip != NULL && strncmp(skip, line, skiplen) == 0 &&
	(last == '\t' \|\| last == ' ' \|\| last == '\0')) {
	continue;
	}
	break;
	}
	return (line);
	}

	/*
	* This function translate options to a format acceptable by exports(5), eg.
	*
	* -ro -network=192.168.0.0 -mask=255.255.255.0 -maproot=0 \
	* zfs.freebsd.org 69.147.83.54
	*
	* Accepted input formats:
	*
	* ro,network=192.168.0.0,mask=255.255.255.0,maproot=0,zfs.freebsd.org
	* ro network=192.168.0.0 mask=255.255.255.0 maproot=0 zfs.freebsd.org
	* -ro,-network=192.168.0.0,-mask=255.255.255.0,-maproot=0,zfs.freebsd.org
	* -ro -network=192.168.0.0 -mask=255.255.255.0 -maproot=0 \
	* zfs.freebsd.org
	*
	* Recognized keywords:
	*
	* ro, maproot, mapall, mask, network, sec, alldirs, public, webnfs,
	* index, quiet
	*
	* NOTE: This function returns a static buffer and thus is not thread-safe.
	*/
	static char *
	translate_opts(const char *shareopts)
	{
	static const char *known_opts[] = { "ro", "maproot", "mapall", "mask",
	"network", "sec", "alldirs", "public", "webnfs", "index", "quiet",
	NULL };
	static char newopts[OPTSSIZE];
	char oldopts[OPTSSIZE];
	char o, s = NULL;
	unsigned int i;
	size_t len;

	strlcpy(oldopts, shareopts, sizeof (oldopts));
	newopts[0] = '\0';
	s = oldopts;
	while ((o = strsep(&s, "-, ")) != NULL) {
	if (o[0] == '\0')
	continue;
	for (i = 0; known_opts[i] != NULL; i++) {
	len = strlen(known_opts[i]);
	if (strncmp(known_opts[i], o, len) == 0 &&
	(o[len] == '\0' \|\| o[len] == '=')) {
	strlcat(newopts, "-", sizeof (newopts));
	break;
	}
	}
	strlcat(newopts, o, sizeof (newopts));
	strlcat(newopts, " ", sizeof (newopts));
	}
	return (newopts);
	}

	/*
	* This function copies all entries from the exports file to "filename",
	* omitting any entries for the specified mountpoint.
	*/
	-__attribute__((visibility("hidden"))) int
	+int
	nfs_copy_entries(char filename, const char mountpoint)
	{
	int error = SA_OK;
	char *line;

	FILE *oldfp = fopen(ZFS_EXPORTS_FILE, "re");
	FILE *newfp = fopen(filename, "w+e");
	if (newfp == NULL) {
	fprintf(stderr, "failed to open %s file: %s", filename,
	strerror(errno));
	fclose(oldfp);
	return (SA_SYSTEM_ERR);
	}
	fputs(FILE_HEADER, newfp);

	/*
	* The ZFS_EXPORTS_FILE may not exist yet. If that's the
	* case then just write out the new file.
	*/
	if (oldfp != NULL) {
	while ((line = zgetline(oldfp, mountpoint)) != NULL)
	fprintf(newfp, "%s\n", line);
	if (ferror(oldfp) != 0) {
	error = ferror(oldfp);
	}
	if (fclose(oldfp) != 0) {
	fprintf(stderr, "Unable to close file %s: %s\n",
	filename, strerror(errno));
	error = error != 0 ? error : SA_SYSTEM_ERR;
	}
	}

	if (error == 0 && ferror(newfp) != 0) {
	error = ferror(newfp);
	}

	if (fclose(newfp) != 0) {
	fprintf(stderr, "Unable to close file %s: %s\n",
	filename, strerror(errno));
	error = error != 0 ? error : SA_SYSTEM_ERR;
	}
	return (error);
	}

	static int
	nfs_enable_share_impl(sa_share_impl_t impl_share, char *filename)
	{
	FILE *fp = fopen(filename, "a+e");
	if (fp == NULL) {
	fprintf(stderr, "failed to open %s file: %s", filename,
	strerror(errno));
	return (SA_SYSTEM_ERR);
	}

	char *shareopts = FSINFO(impl_share, nfs_fstype)->shareopts;
	if (strcmp(shareopts, "on") == 0)
	shareopts = "";

	if (fprintf(fp, "%s\t%s\n", impl_share->sa_mountpoint,
	translate_opts(shareopts)) < 0) {
	fprintf(stderr, "failed to write to %s\n", filename);
	fclose(fp);
	return (SA_SYSTEM_ERR);
	}

	if (fclose(fp) != 0) {
	fprintf(stderr, "Unable to close file %s: %s\n",
	filename, strerror(errno));
	return (SA_SYSTEM_ERR);
	}

	return (SA_OK);
	}

	static int
	nfs_enable_share(sa_share_impl_t impl_share)
	{
	return (nfs_toggle_share(
	ZFS_EXPORTS_LOCK, ZFS_EXPORTS_FILE, NULL, impl_share,
	nfs_enable_share_impl));
	}

	static int
	nfs_disable_share_impl(sa_share_impl_t impl_share, char *filename)
	{
	return (SA_OK);
	}

	static int
	nfs_disable_share(sa_share_impl_t impl_share)
	{
	return (nfs_toggle_share(
	ZFS_EXPORTS_LOCK, ZFS_EXPORTS_FILE, NULL, impl_share,
	nfs_disable_share_impl));
	}

	static boolean_t
	nfs_is_shared(sa_share_impl_t impl_share)
	{
	char *s, last, line[MAXLINESIZE];
	size_t len;
	char *mntpoint = impl_share->sa_mountpoint;
	size_t mntlen = strlen(mntpoint);

	FILE *fp = fopen(ZFS_EXPORTS_FILE, "re");
	if (fp == NULL)
	return (B_FALSE);

	for (;;) {
	s = fgets(line, sizeof (line), fp);
	if (s == NULL)
	return (B_FALSE);
	/* Skip empty lines and comments. */
	if (line[0] == '\n' \|\| line[0] == '#')
	continue;
	len = strlen(line);
	if (line[len - 1] == '\n')
	line[len - 1] = '\0';
	last = line[mntlen];
	/* Skip the given mountpoint. */
	if (strncmp(mntpoint, line, mntlen) == 0 &&
	(last == '\t' \|\| last == ' ' \|\| last == '\0')) {
	fclose(fp);
	return (B_TRUE);
	}
	}
	fclose(fp);
	return (B_FALSE);
	}

	static int
	nfs_validate_shareopts(const char *shareopts)
	{
	return (SA_OK);
	}

	static int
	nfs_update_shareopts(sa_share_impl_t impl_share, const char *shareopts)
	{
	FSINFO(impl_share, nfs_fstype)->shareopts = (char *)shareopts;
	return (SA_OK);
	}

	static void
	nfs_clear_shareopts(sa_share_impl_t impl_share)
	{
	FSINFO(impl_share, nfs_fstype)->shareopts = NULL;
	}

	/*
	* Commit the shares by restarting mountd.
	*/
	static int
	nfs_commit_shares(void)
	{
	struct pidfh *pfh;
	pid_t mountdpid;

	pfh = pidfile_open(_PATH_MOUNTDPID, 0600, &mountdpid);
	if (pfh != NULL) {
	/* Mountd is not running. */
	pidfile_remove(pfh);
	return (SA_OK);
	}
	if (errno != EEXIST) {
	/* Cannot open pidfile for some reason. */
	return (SA_SYSTEM_ERR);
	}
	/* We have mountd(8) PID in mountdpid variable. */
	kill(mountdpid, SIGHUP);
	return (SA_OK);
	}

	static const sa_share_ops_t nfs_shareops = {
	.enable_share = nfs_enable_share,
	.disable_share = nfs_disable_share,
	.is_shared = nfs_is_shared,

	.validate_shareopts = nfs_validate_shareopts,
	.update_shareopts = nfs_update_shareopts,
	.clear_shareopts = nfs_clear_shareopts,
	.commit_shares = nfs_commit_shares,
	};

	/*
	* Initializes the NFS functionality of libshare.
	*/
	void
	libshare_nfs_init(void)
	{
	nfs_fstype = register_fstype("nfs", &nfs_shareops);
	}
	diff --git a/sys/contrib/openzfs/lib/libshare/os/linux/nfs.c b/sys/contrib/openzfs/lib/libshare/os/linux/nfs.c
	index c236f25698f2..bd578adeec5d 100644
	--- a/sys/contrib/openzfs/lib/libshare/os/linux/nfs.c
	+++ b/sys/contrib/openzfs/lib/libshare/os/linux/nfs.c
	@@ -1,606 +1,606 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	/*
	* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2011 Gunnar Beutner
	* Copyright (c) 2012 Cyril Plisko. All rights reserved.
	* Copyright (c) 2019, 2020 by Delphix. All rights reserved.
	*/

	#include <dirent.h>
	#include <stdio.h>
	#include <string.h>
	#include <strings.h>
	#include <errno.h>
	#include <fcntl.h>
	#include <sys/file.h>
	#include <sys/stat.h>
	#include <sys/types.h>
	#include <sys/wait.h>
	#include <unistd.h>
	#include <libzfs.h>
	#include <libshare.h>
	#include "libshare_impl.h"
	#include "nfs.h"

	#define ZFS_EXPORTS_DIR "/etc/exports.d"
	#define ZFS_EXPORTS_FILE ZFS_EXPORTS_DIR"/zfs.exports"
	#define ZFS_EXPORTS_LOCK ZFS_EXPORTS_FILE".lock"

	static sa_fstype_t *nfs_fstype;

	typedef int (nfs_shareopt_callback_t)(const char opt, const char *value,
	void *cookie);

	typedef int (nfs_host_callback_t)(const char sharepath, const char *filename,
	const char host, const char security, const char access, void cookie);

	/*
	* Invokes the specified callback function for each Solaris share option
	* listed in the specified string.
	*/
	static int
	foreach_nfs_shareopt(const char *shareopts,
	nfs_shareopt_callback_t callback, void *cookie)
	{
	char shareopts_dup, opt, cur, value;
	int was_nul, error;

	if (shareopts == NULL)
	return (SA_OK);

	if (strcmp(shareopts, "on") == 0)
	shareopts = "rw,crossmnt";

	shareopts_dup = strdup(shareopts);


	if (shareopts_dup == NULL)
	return (SA_NO_MEMORY);

	opt = shareopts_dup;
	was_nul = 0;

	while (1) {
	cur = opt;

	while (cur != ',' && cur != '\0')
	cur++;

	if (*cur == '\0')
	was_nul = 1;

	*cur = '\0';

	if (cur > opt) {
	value = strchr(opt, '=');

	if (value != NULL) {
	*value = '\0';
	value++;
	}

	error = callback(opt, value, cookie);

	if (error != SA_OK) {
	free(shareopts_dup);
	return (error);
	}
	}

	opt = cur + 1;

	if (was_nul)
	break;
	}

	free(shareopts_dup);

	return (SA_OK);
	}

	typedef struct nfs_host_cookie_s {
	nfs_host_callback_t callback;
	const char *sharepath;
	void *cookie;
	const char *filename;
	const char *security;
	} nfs_host_cookie_t;

	/*
	* Helper function for foreach_nfs_host. This function checks whether the
	* current share option is a host specification and invokes a callback
	* function with information about the host.
	*/
	static int
	foreach_nfs_host_cb(const char opt, const char value, void *pcookie)
	{
	int error;
	const char *access;
	char host_dup, host, *next;
	nfs_host_cookie_t udata = (nfs_host_cookie_t )pcookie;

	#ifdef DEBUG
	fprintf(stderr, "foreach_nfs_host_cb: key=%s, value=%s\n", opt, value);
	#endif

	if (strcmp(opt, "sec") == 0)
	udata->security = value;

	if (strcmp(opt, "rw") == 0 \|\| strcmp(opt, "ro") == 0) {
	if (value == NULL)
	value = "*";

	access = opt;

	host_dup = strdup(value);

	if (host_dup == NULL)
	return (SA_NO_MEMORY);

	host = host_dup;

	do {
	next = strchr(host, ':');
	if (next != NULL) {
	*next = '\0';
	next++;
	}

	error = udata->callback(udata->filename,
	udata->sharepath, host, udata->security,
	access, udata->cookie);

	if (error != SA_OK) {
	free(host_dup);

	return (error);
	}

	host = next;
	} while (host != NULL);

	free(host_dup);
	}

	return (SA_OK);
	}

	/*
	* Invokes a callback function for all NFS hosts that are set for a share.
	*/
	static int
	foreach_nfs_host(sa_share_impl_t impl_share, char *filename,
	nfs_host_callback_t callback, void *cookie)
	{
	nfs_host_cookie_t udata;
	char *shareopts;

	udata.callback = callback;
	udata.sharepath = impl_share->sa_mountpoint;
	udata.cookie = cookie;
	udata.filename = filename;
	udata.security = "sys";

	shareopts = FSINFO(impl_share, nfs_fstype)->shareopts;

	return (foreach_nfs_shareopt(shareopts, foreach_nfs_host_cb,
	&udata));
	}

	/*
	* Converts a Solaris NFS host specification to its Linux equivalent.
	*/
	static int
	get_linux_hostspec(const char solaris_hostspec, char *plinux_hostspec)
	{
	/*
	* For now we just support CIDR masks (e.g. @192.168.0.0/16) and host
	* wildcards (e.g. *.example.org).
	*/
	if (solaris_hostspec[0] == '@') {
	/*
	* Solaris host specifier, e.g. @192.168.0.0/16; we just need
	* to skip the @ in this case
	*/
	*plinux_hostspec = strdup(solaris_hostspec + 1);
	} else {
	*plinux_hostspec = strdup(solaris_hostspec);
	}

	if (*plinux_hostspec == NULL) {
	return (SA_NO_MEMORY);
	}

	return (SA_OK);
	}

	/*
	* Adds a Linux share option to an array of NFS options.
	*/
	static int
	add_linux_shareopt(char *plinux_opts, const char key, const char *value)
	{
	size_t len = 0;
	char *new_linux_opts;

	if (*plinux_opts != NULL)
	len = strlen(*plinux_opts);

	new_linux_opts = realloc(*plinux_opts, len + 1 + strlen(key) +
	(value ? 1 + strlen(value) : 0) + 1);

	if (new_linux_opts == NULL)
	return (SA_NO_MEMORY);

	new_linux_opts[len] = '\0';

	if (len > 0)
	strcat(new_linux_opts, ",");

	strcat(new_linux_opts, key);

	if (value != NULL) {
	strcat(new_linux_opts, "=");
	strcat(new_linux_opts, value);
	}

	*plinux_opts = new_linux_opts;

	return (SA_OK);
	}

	/*
	* Validates and converts a single Solaris share option to its Linux
	* equivalent.
	*/
	static int
	get_linux_shareopts_cb(const char key, const char value, void *cookie)
	{
	char plinux_opts = (char )cookie;

	/* host-specific options, these are taken care of elsewhere */
	if (strcmp(key, "ro") == 0 \|\| strcmp(key, "rw") == 0 \|\|
	strcmp(key, "sec") == 0)
	return (SA_OK);

	if (strcmp(key, "anon") == 0)
	key = "anonuid";

	if (strcmp(key, "root_mapping") == 0) {
	(void) add_linux_shareopt(plinux_opts, "root_squash", NULL);
	key = "anonuid";
	}

	if (strcmp(key, "nosub") == 0)
	key = "subtree_check";

	if (strcmp(key, "insecure") != 0 && strcmp(key, "secure") != 0 &&
	strcmp(key, "async") != 0 && strcmp(key, "sync") != 0 &&
	strcmp(key, "no_wdelay") != 0 && strcmp(key, "wdelay") != 0 &&
	strcmp(key, "nohide") != 0 && strcmp(key, "hide") != 0 &&
	strcmp(key, "crossmnt") != 0 &&
	strcmp(key, "no_subtree_check") != 0 &&
	strcmp(key, "subtree_check") != 0 &&
	strcmp(key, "insecure_locks") != 0 &&
	strcmp(key, "secure_locks") != 0 &&
	strcmp(key, "no_auth_nlm") != 0 && strcmp(key, "auth_nlm") != 0 &&
	strcmp(key, "no_acl") != 0 && strcmp(key, "mountpoint") != 0 &&
	strcmp(key, "mp") != 0 && strcmp(key, "fsuid") != 0 &&
	strcmp(key, "refer") != 0 && strcmp(key, "replicas") != 0 &&
	strcmp(key, "root_squash") != 0 &&
	strcmp(key, "no_root_squash") != 0 &&
	strcmp(key, "all_squash") != 0 &&
	strcmp(key, "no_all_squash") != 0 && strcmp(key, "fsid") != 0 &&
	strcmp(key, "anonuid") != 0 && strcmp(key, "anongid") != 0) {
	return (SA_SYNTAX_ERR);
	}

	(void) add_linux_shareopt(plinux_opts, key, value);

	return (SA_OK);
	}

	/*
	* Takes a string containing Solaris share options (e.g. "sync,no_acl") and
	* converts them to a NULL-terminated array of Linux NFS options.
	*/
	static int
	get_linux_shareopts(const char shareopts, char *plinux_opts)
	{
	int error;

	assert(plinux_opts != NULL);

	*plinux_opts = NULL;

	/* no_subtree_check - Default as of nfs-utils v1.1.0 */
	(void) add_linux_shareopt(plinux_opts, "no_subtree_check", NULL);

	/* mountpoint - Restrict exports to ZFS mountpoints */
	(void) add_linux_shareopt(plinux_opts, "mountpoint", NULL);

	error = foreach_nfs_shareopt(shareopts, get_linux_shareopts_cb,
	plinux_opts);

	if (error != SA_OK) {
	free(*plinux_opts);
	*plinux_opts = NULL;
	}

	return (error);
	}

	/*
	* This function populates an entry into /etc/exports.d/zfs.exports.
	* This file is consumed by the linux nfs server so that zfs shares are
	* automatically exported upon boot or whenever the nfs server restarts.
	*/
	static int
	nfs_add_entry(const char filename, const char sharepath,
	const char host, const char security, const char *access_opts,
	void *pcookie)
	{
	int error;
	char *linuxhost;
	const char linux_opts = (const char )pcookie;

	error = get_linux_hostspec(host, &linuxhost);
	if (error != SA_OK)
	return (error);

	if (linux_opts == NULL)
	linux_opts = "";

	FILE *fp = fopen(filename, "a+e");
	if (fp == NULL) {
	fprintf(stderr, "failed to open %s file: %s", filename,
	strerror(errno));
	free(linuxhost);
	return (SA_SYSTEM_ERR);
	}

	if (fprintf(fp, "%s %s(sec=%s,%s,%s)\n", sharepath, linuxhost,
	security, access_opts, linux_opts) < 0) {
	fprintf(stderr, "failed to write to %s\n", filename);
	free(linuxhost);
	fclose(fp);
	return (SA_SYSTEM_ERR);
	}

	free(linuxhost);
	if (fclose(fp) != 0) {
	fprintf(stderr, "Unable to close file %s: %s\n",
	filename, strerror(errno));
	return (SA_SYSTEM_ERR);
	}
	return (SA_OK);
	}

	/*
	* This function copies all entries from the exports file to "filename",
	* omitting any entries for the specified mountpoint.
	*/
	-__attribute__((visibility("hidden"))) int
	+int
	nfs_copy_entries(char filename, const char mountpoint)
	{
	char *buf = NULL;
	size_t buflen = 0;
	int error = SA_OK;

	FILE *oldfp = fopen(ZFS_EXPORTS_FILE, "re");
	FILE *newfp = fopen(filename, "w+e");
	if (newfp == NULL) {
	fprintf(stderr, "failed to open %s file: %s", filename,
	strerror(errno));
	fclose(oldfp);
	return (SA_SYSTEM_ERR);
	}
	fputs(FILE_HEADER, newfp);

	/*
	* The ZFS_EXPORTS_FILE may not exist yet. If that's the
	* case then just write out the new file.
	*/
	if (oldfp != NULL) {
	while (getline(&buf, &buflen, oldfp) != -1) {
	char *space = NULL;

	if (buf[0] == '\n' \|\| buf[0] == '#')
	continue;

	if ((space = strchr(buf, ' ')) != NULL) {
	int mountpoint_len = strlen(mountpoint);

	if (space - buf == mountpoint_len &&
	strncmp(mountpoint, buf,
	mountpoint_len) == 0) {
	continue;
	}
	}
	fputs(buf, newfp);
	}

	if (ferror(oldfp) != 0) {
	error = ferror(oldfp);
	}
	if (fclose(oldfp) != 0) {
	fprintf(stderr, "Unable to close file %s: %s\n",
	filename, strerror(errno));
	error = error != 0 ? error : SA_SYSTEM_ERR;
	}
	}

	if (error == 0 && ferror(newfp) != 0) {
	error = ferror(newfp);
	}

	free(buf);
	if (fclose(newfp) != 0) {
	fprintf(stderr, "Unable to close file %s: %s\n",
	filename, strerror(errno));
	error = error != 0 ? error : SA_SYSTEM_ERR;
	}
	return (error);
	}

	/*
	* Enables NFS sharing for the specified share.
	*/
	static int
	nfs_enable_share_impl(sa_share_impl_t impl_share, char *filename)
	{
	char shareopts, linux_opts;
	int error;

	shareopts = FSINFO(impl_share, nfs_fstype)->shareopts;
	error = get_linux_shareopts(shareopts, &linux_opts);
	if (error != SA_OK)
	return (error);

	error = foreach_nfs_host(impl_share, filename, nfs_add_entry,
	linux_opts);
	free(linux_opts);
	return (error);
	}

	static int
	nfs_enable_share(sa_share_impl_t impl_share)
	{
	return (nfs_toggle_share(
	ZFS_EXPORTS_LOCK, ZFS_EXPORTS_FILE, ZFS_EXPORTS_DIR, impl_share,
	nfs_enable_share_impl));
	}

	/*
	* Disables NFS sharing for the specified share.
	*/
	static int
	nfs_disable_share_impl(sa_share_impl_t impl_share, char *filename)
	{
	return (SA_OK);
	}

	static int
	nfs_disable_share(sa_share_impl_t impl_share)
	{
	return (nfs_toggle_share(
	ZFS_EXPORTS_LOCK, ZFS_EXPORTS_FILE, ZFS_EXPORTS_DIR, impl_share,
	nfs_disable_share_impl));
	}

	static boolean_t
	nfs_is_shared(sa_share_impl_t impl_share)
	{
	size_t buflen = 0;
	char *buf = NULL;

	FILE *fp = fopen(ZFS_EXPORTS_FILE, "re");
	if (fp == NULL) {
	return (B_FALSE);
	}
	while ((getline(&buf, &buflen, fp)) != -1) {
	char *space = NULL;

	if ((space = strchr(buf, ' ')) != NULL) {
	int mountpoint_len = strlen(impl_share->sa_mountpoint);

	if (space - buf == mountpoint_len &&
	strncmp(impl_share->sa_mountpoint, buf,
	mountpoint_len) == 0) {
	fclose(fp);
	free(buf);
	return (B_TRUE);
	}
	}
	}
	free(buf);
	fclose(fp);
	return (B_FALSE);
	}

	/*
	* Checks whether the specified NFS share options are syntactically correct.
	*/
	static int
	nfs_validate_shareopts(const char *shareopts)
	{
	char *linux_opts;
	int error;

	error = get_linux_shareopts(shareopts, &linux_opts);

	if (error != SA_OK)
	return (error);

	free(linux_opts);
	return (SA_OK);
	}

	static int
	nfs_update_shareopts(sa_share_impl_t impl_share, const char *shareopts)
	{
	FSINFO(impl_share, nfs_fstype)->shareopts = (char *)shareopts;
	return (SA_OK);
	}

	/*
	* Clears a share's NFS options. Used by libshare to
	* clean up shares that are about to be free()'d.
	*/
	static void
	nfs_clear_shareopts(sa_share_impl_t impl_share)
	{
	FSINFO(impl_share, nfs_fstype)->shareopts = NULL;
	}

	static int
	nfs_commit_shares(void)
	{
	char *argv[] = {
	"/usr/sbin/exportfs",
	"-ra",
	NULL
	};

	return (libzfs_run_process(argv[0], argv, 0));
	}

	static const sa_share_ops_t nfs_shareops = {
	.enable_share = nfs_enable_share,
	.disable_share = nfs_disable_share,
	.is_shared = nfs_is_shared,

	.validate_shareopts = nfs_validate_shareopts,
	.update_shareopts = nfs_update_shareopts,
	.clear_shareopts = nfs_clear_shareopts,
	.commit_shares = nfs_commit_shares,
	};

	/*
	* Initializes the NFS functionality of libshare.
	*/
	void
	libshare_nfs_init(void)
	{
	nfs_fstype = register_fstype("nfs", &nfs_shareops);
	}
	diff --git a/sys/contrib/openzfs/lib/libspl/include/libshare.h b/sys/contrib/openzfs/lib/libspl/include/libshare.h
	index ea53f8c15089..5d06b163a3ba 100644
	--- a/sys/contrib/openzfs/lib/libspl/include/libshare.h
	+++ b/sys/contrib/openzfs/lib/libspl/include/libshare.h
	@@ -1,86 +1,86 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	/*
	* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
	* Use is subject to license terms.
	* Copyright (c) 2019, 2020 by Delphix. All rights reserved.
	*/
	#ifndef _LIBSPL_LIBSHARE_H
	-#define _LIBSPL_LIBSHARE_H
	+#define _LIBSPL_LIBSHARE_H extern __attribute__((visibility("default")))

	/* API Initialization */
	#define SA_INIT_SHARE_API 0x0001 /* init share specific interface */
	#define SA_INIT_CONTROL_API 0x0002 /* init control specific interface */

	/*
	* defined error values
	*/

	#define SA_OK 0
	#define SA_NO_SUCH_PATH 1 /* provided path doesn't exist */
	#define SA_NO_MEMORY 2 /* no memory for data structures */
	#define SA_DUPLICATE_NAME 3 /* object name is already in use */
	#define SA_BAD_PATH 4 /* not a full path */
	#define SA_NO_SUCH_GROUP 5 /* group is not defined */
	#define SA_CONFIG_ERR 6 /* system configuration error */
	#define SA_SYSTEM_ERR 7 /* system error, use errno */
	#define SA_SYNTAX_ERR 8 /* syntax error on command line */
	#define SA_NO_PERMISSION 9 /* no permission for operation */
	#define SA_BUSY 10 /* resource is busy */
	#define SA_NO_SUCH_PROP 11 /* property doesn't exist */
	#define SA_INVALID_NAME 12 /* name of object is invalid */
	#define SA_INVALID_PROTOCOL 13 /* specified protocol not valid */
	#define SA_NOT_ALLOWED 14 /* operation not allowed */
	#define SA_BAD_VALUE 15 /* bad value for property */
	#define SA_INVALID_SECURITY 16 /* invalid security type */
	#define SA_NO_SUCH_SECURITY 17 /* security set not found */
	#define SA_VALUE_CONFLICT 18 /* property value conflict */
	#define SA_NOT_IMPLEMENTED 19 /* plugin interface not implemented */
	#define SA_INVALID_PATH 20 /* path is sub-dir of existing share */
	#define SA_NOT_SUPPORTED 21 /* operation not supported for proto */
	#define SA_PROP_SHARE_ONLY 22 /* property valid on share only */
	#define SA_NOT_SHARED 23 /* path is not shared */
	#define SA_NO_SUCH_RESOURCE 24 /* resource not found */
	#define SA_RESOURCE_REQUIRED 25 /* resource name is required */
	#define SA_MULTIPLE_ERROR 26 /* multiple protocols reported error */
	#define SA_PATH_IS_SUBDIR 27 /* check_path found path is subdir */
	#define SA_PATH_IS_PARENTDIR 28 /* check_path found path is parent */
	#define SA_NO_SECTION 29 /* protocol requires section info */
	#define SA_NO_SUCH_SECTION 30 /* no section found */
	#define SA_NO_PROPERTIES 31 /* no properties found */
	#define SA_PASSWORD_ENC 32 /* passwords must be encrypted */
	#define SA_SHARE_EXISTS 33 /* path or file is already shared */

	/* initialization */
	-extern char *sa_errorstr(int);
	+_LIBSPL_LIBSHARE_H char *sa_errorstr(int);

	/* share control */
	-extern int sa_enable_share(const char , const char , const char *,
	+_LIBSPL_LIBSHARE_H int sa_enable_share(const char , const char , const char *,
	char *);
	-extern int sa_disable_share(const char , char );
	-extern boolean_t sa_is_shared(const char , char );
	-extern void sa_commit_shares(const char *);
	+_LIBSPL_LIBSHARE_H int sa_disable_share(const char , char );
	+_LIBSPL_LIBSHARE_H boolean_t sa_is_shared(const char , char );
	+_LIBSPL_LIBSHARE_H void sa_commit_shares(const char *);

	/* protocol specific interfaces */
	-extern int sa_validate_shareopts(char , char );
	+_LIBSPL_LIBSHARE_H int sa_validate_shareopts(char , char );

	#endif /* _LIBSPL_LIBSHARE_H */
	diff --git a/sys/contrib/openzfs/lib/libspl/include/sys/kstat.h b/sys/contrib/openzfs/lib/libspl/include/sys/kstat.h
	index 69fb6d401fc7..f73fb92eb797 100644
	--- a/sys/contrib/openzfs/lib/libspl/include/sys/kstat.h
	+++ b/sys/contrib/openzfs/lib/libspl/include/sys/kstat.h
	@@ -1,822 +1,816 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
	* Use is subject to license terms.
	*/

	#ifndef _SYS_KSTAT_H
	#define _SYS_KSTAT_H



	/*
	* Definition of general kernel statistics structures and /dev/kstat ioctls
	*/

	#include <sys/types.h>
	#include <sys/time.h>

	#ifdef __cplusplus
	extern "C" {
	#endif

	typedef int kid_t; /* unique kstat id */

	/*
	* Kernel statistics driver (/dev/kstat) ioctls
	*/

	#define KSTAT_IOC_BASE ('K' << 8)

	#define KSTAT_IOC_CHAIN_ID KSTAT_IOC_BASE \| 0x01
	#define KSTAT_IOC_READ KSTAT_IOC_BASE \| 0x02
	#define KSTAT_IOC_WRITE KSTAT_IOC_BASE \| 0x03

	/*
	* /dev/kstat ioctl usage (kd denotes /dev/kstat descriptor):
	*
	* kcid = ioctl(kd, KSTAT_IOC_CHAIN_ID, NULL);
	* kcid = ioctl(kd, KSTAT_IOC_READ, kstat_t *);
	* kcid = ioctl(kd, KSTAT_IOC_WRITE, kstat_t *);
	*/

	#define KSTAT_STRLEN 255 /* 254 chars + NULL; must be 16 * n - 1 */

	/*
	* The generic kstat header
	*/

	typedef struct kstat {
	/*
	* Fields relevant to both kernel and user
	*/
	hrtime_t ks_crtime; /* creation time (from gethrtime()) */
	struct kstat ks_next; / kstat chain linkage */
	kid_t ks_kid; /* unique kstat ID */
	char ks_module[KSTAT_STRLEN]; /* provider module name */
	uchar_t ks_resv; /* reserved, currently just padding */
	int ks_instance; /* provider module's instance */
	char ks_name[KSTAT_STRLEN]; /* kstat name */
	uchar_t ks_type; /* kstat data type */
	char ks_class[KSTAT_STRLEN]; /* kstat class */
	uchar_t ks_flags; /* kstat flags */
	void ks_data; / kstat type-specific data */
	uint_t ks_ndata; /* # of type-specific data records */
	size_t ks_data_size; /* total size of kstat data section */
	hrtime_t ks_snaptime; /* time of last data snapshot */
	/*
	* Fields relevant to kernel only
	*/
	int (ks_update)(struct kstat , int); /* dynamic update */
	void ks_private; / arbitrary provider-private data */
	int (ks_snapshot)(struct kstat , void *, int);
	void ks_lock; / protects this kstat's data */
	} kstat_t;

	#ifdef _SYSCALL32

	typedef int32_t kid32_t;

	typedef struct kstat32 {
	/*
	* Fields relevant to both kernel and user
	*/
	hrtime_t ks_crtime;
	caddr32_t ks_next; /* struct kstat pointer */
	kid32_t ks_kid;
	char ks_module[KSTAT_STRLEN];
	uint8_t ks_resv;
	int32_t ks_instance;
	char ks_name[KSTAT_STRLEN];
	uint8_t ks_type;
	char ks_class[KSTAT_STRLEN];
	uint8_t ks_flags;
	caddr32_t ks_data; /* type-specific data */
	uint32_t ks_ndata;
	size32_t ks_data_size;
	hrtime_t ks_snaptime;
	/*
	* Fields relevant to kernel only (only needed here for padding)
	*/
	int32_t _ks_update;
	caddr32_t _ks_private;
	int32_t _ks_snapshot;
	caddr32_t _ks_lock;
	} kstat32_t;

	#endif /* _SYSCALL32 */

	/*
	* kstat structure and locking strategy
	*
	* Each kstat consists of a header section (a kstat_t) and a data section.
	* The system maintains a set of kstats, protected by kstat_chain_lock.
	* kstat_chain_lock protects all additions to/deletions from this set,
	* as well as all changes to kstat headers. kstat data sections are
	* optionally protected by the per-kstat ks_lock. If ks_lock is non-NULL,
	* kstat clients (e.g. /dev/kstat) will acquire this lock for all of their
	* operations on that kstat. It is up to the kstat provider to decide whether
	* guaranteeing consistent data to kstat clients is sufficiently important
	* to justify the locking cost. Note, however, that most statistic updates
	* already occur under one of the provider's mutexes, so if the provider sets
	* ks_lock to point to that mutex, then kstat data locking is free.
	*
	* NOTE: variable-size kstats MUST employ kstat data locking, to prevent
	* data-size races with kstat clients.
	*
	* NOTE: ks_lock is really of type (kmutex_t ); it is declared as (void )
	* in the kstat header so that users don't have to be exposed to all of the
	* kernel's lock-related data structures.
	*/

	#if defined(_KERNEL)

	#define KSTAT_ENTER(k) \
	{ kmutex_t *lp = (k)->ks_lock; if (lp) mutex_enter(lp); }

	#define KSTAT_EXIT(k) \
	{ kmutex_t *lp = (k)->ks_lock; if (lp) mutex_exit(lp); }

	#define KSTAT_UPDATE(k, rw) (*(k)->ks_update)((k), (rw))

	#define KSTAT_SNAPSHOT(k, buf, rw) (*(k)->ks_snapshot)((k), (buf), (rw))

	#endif /* defined(_KERNEL) */

	/*
	* kstat time
	*
	* All times associated with kstats (e.g. creation time, snapshot time,
	* kstat_timer_t and kstat_io_t timestamps, etc.) are 64-bit nanosecond values,
	* as returned by gethrtime(). The accuracy of these timestamps is machine
	* dependent, but the precision (units) is the same across all platforms.
	*/

	/*
	* kstat identity (KID)
	*
	* Each kstat is assigned a unique KID (kstat ID) when it is added to the
	* global kstat chain. The KID is used as a cookie by /dev/kstat to
	* request information about the corresponding kstat. There is also
	* an identity associated with the entire kstat chain, kstat_chain_id,
	* which is bumped each time a kstat is added or deleted. /dev/kstat uses
	* the chain ID to detect changes in the kstat chain (e.g., a new disk
	* coming online) between ioctl()s.
	*/

	/*
	* kstat module, kstat instance
	*
	* ks_module and ks_instance contain the name and instance of the module
	* that created the kstat. In cases where there can only be one instance,
	* ks_instance is 0. The kernel proper (/kernel/unix) uses "unix" as its
	* module name.
	*/

	/*
	* kstat name
	*
	* ks_name gives a meaningful name to a kstat. The full kstat namespace
	* is module.instance.name, so the name only need be unique within a
	* module. kstat_create() will fail if you try to create a kstat with
	* an already-used (ks_module, ks_instance, ks_name) triplet. Spaces are
	* allowed in kstat names, but strongly discouraged, since they hinder
	* awk-style processing at user level.
	*/

	/*
	* kstat type
	*
	* The kstat mechanism provides several flavors of kstat data, defined
	* below. The "raw" kstat type is just treated as an array of bytes; you
	* can use this to export any kind of data you want.
	*
	* Some kstat types allow multiple data structures per kstat, e.g.
	* KSTAT_TYPE_NAMED; others do not. This is part of the spec for each
	* kstat data type.
	*
	* User-level tools should not rely on the #define KSTAT_NUM_TYPES. To
	* get this information, read out the standard system kstat "kstat_types".
	*/

	#define KSTAT_TYPE_RAW 0 /* can be anything */
	/* ks_ndata >= 1 */
	#define KSTAT_TYPE_NAMED 1 /* name/value pair */
	/* ks_ndata >= 1 */
	#define KSTAT_TYPE_INTR 2 /* interrupt statistics */
	/* ks_ndata == 1 */
	#define KSTAT_TYPE_IO 3 /* I/O statistics */
	/* ks_ndata == 1 */
	#define KSTAT_TYPE_TIMER 4 /* event timer */
	/* ks_ndata >= 1 */

	#define KSTAT_NUM_TYPES 5

	/*
	* kstat class
	*
	* Each kstat can be characterized as belonging to some broad class
	* of statistics, e.g. disk, tape, net, vm, streams, etc. This field
	* can be used as a filter to extract related kstats. The following
	* values are currently in use: disk, tape, net, controller, vm, kvm,
	* hat, streams, kstat, and misc. (The kstat class encompasses things
	* like kstat_types.)
	*/

	/*
	* kstat flags
	*
	* Any of the following flags may be passed to kstat_create(). They are
	* all zero by default.
	*
	* KSTAT_FLAG_VIRTUAL:
	*
	* Tells kstat_create() not to allocate memory for the
	* kstat data section; instead, you will set the ks_data
	* field to point to the data you wish to export. This
	* provides a convenient way to export existing data
	* structures.
	*
	* KSTAT_FLAG_VAR_SIZE:
	*
	* The size of the kstat you are creating will vary over time.
	* For example, you may want to use the kstat mechanism to
	* export a linked list. NOTE: The kstat framework does not
	* manage the data section, so all variable-size kstats must be
	* virtual kstats. Moreover, variable-size kstats MUST employ
	* kstat data locking to prevent data-size races with kstat
	* clients. See the section on "kstat snapshot" for details.
	*
	* KSTAT_FLAG_WRITABLE:
	*
	* Makes the kstat's data section writable by root.
	* The ks_snapshot routine (see below) does not need to check for
	* this; permission checking is handled in the kstat driver.
	*
	* KSTAT_FLAG_PERSISTENT:
	*
	* Indicates that this kstat is to be persistent over time.
	* For persistent kstats, kstat_delete() simply marks the
	* kstat as dormant; a subsequent kstat_create() reactivates
	* the kstat. This feature is provided so that statistics
	* are not lost across driver close/open (e.g., raw disk I/O
	* on a disk with no mounted partitions.)
	* NOTE: Persistent kstats cannot be virtual, since ks_data
	* points to garbage as soon as the driver goes away.
	*
	* The following flags are maintained by the kstat framework:
	*
	* KSTAT_FLAG_DORMANT:
	*
	* For persistent kstats, indicates that the kstat is in the
	* dormant state (e.g., the corresponding device is closed).
	*
	* KSTAT_FLAG_INVALID:
	*
	* This flag is set when a kstat is in a transitional state,
	* e.g. between kstat_create() and kstat_install().
	* kstat clients must not attempt to access the kstat's data
	* if this flag is set.
	*/

	#define KSTAT_FLAG_VIRTUAL 0x01
	#define KSTAT_FLAG_VAR_SIZE 0x02
	#define KSTAT_FLAG_WRITABLE 0x04
	#define KSTAT_FLAG_PERSISTENT 0x08
	#define KSTAT_FLAG_DORMANT 0x10
	#define KSTAT_FLAG_INVALID 0x20
	#define KSTAT_FLAG_LONGSTRINGS 0x40
	#define KSTAT_FLAG_NO_HEADERS 0x80

	/*
	* Dynamic update support
	*
	* The kstat mechanism allows for an optional ks_update function to update
	* kstat data. This is useful for drivers where the underlying device
	* keeps cheap hardware stats, but extraction is expensive. Instead of
	* constantly keeping the kstat data section up to date, you can supply a
	* ks_update function which updates the kstat's data section on demand.
	* To take advantage of this feature, simply set the ks_update field before
	* calling kstat_install().
	*
	* The ks_update function, if supplied, must have the following structure:
	*
	* int
	* foo_kstat_update(kstat_t *ksp, int rw)
	* {
	* if (rw == KSTAT_WRITE) {
	* ... update the native stats from ksp->ks_data;
	* return EACCES if you don't support this
	* } else {
	* ... update ksp->ks_data from the native stats
	* }
	* }
	*
	* The ks_update return codes are: 0 for success, EACCES if you don't allow
	* KSTAT_WRITE, and EIO for any other type of error.
	*
	* In general, the ks_update function may need to refer to provider-private
	* data; for example, it may need a pointer to the provider's raw statistics.
	* The ks_private field is available for this purpose. Its use is entirely
	* at the provider's discretion.
	*
	* All variable-size kstats MUST supply a ks_update routine, which computes
	* and sets ks_data_size (and ks_ndata if that is meaningful), since these
	* are needed to perform kstat snapshots (see below).
	*
	* No kstat locking should be done inside the ks_update routine. The caller
	* will already be holding the kstat's ks_lock (to ensure consistent data).
	*/

	#define KSTAT_READ 0
	#define KSTAT_WRITE 1

	/*
	* Kstat snapshot
	*
	* In order to get a consistent view of a kstat's data, clients must obey
	* the kstat's locking strategy. However, these clients may need to perform
	* operations on the data which could cause a fault (e.g. copyout()), or
	* operations which are simply expensive. Doing so could cause deadlock
	* (e.g. if you're holding a disk's kstat lock which is ultimately required
	* to resolve a copyout() fault), performance degradation (since the providers'
	* activity is serialized at the kstat lock), device timing problems, etc.
	*
	* To avoid these problems, kstat data is provided via snapshots. Taking
	* a snapshot is a simple process: allocate a wired-down kernel buffer,
	* acquire the kstat's data lock, copy the data into the buffer ("take the
	* snapshot"), and release the lock. This ensures that the kstat's data lock
	* will be held as briefly as possible, and that no faults will occur while
	* the lock is held.
	*
	* Normally, the snapshot is taken by default_kstat_snapshot(), which
	* timestamps the data (sets ks_snaptime), copies it, and does a little
	* massaging to deal with incomplete transactions on i/o kstats. However,
	* this routine only works for kstats with contiguous data (the typical case).
	* If you create a kstat whose data is, say, a linked list, you must provide
	* your own ks_snapshot routine. The routine you supply must have the
	* following prototype (replace "foo" with something appropriate):
	*
	* int foo_kstat_snapshot(kstat_t ksp, void buf, int rw);
	*
	* The minimal snapshot routine -- one which copies contiguous data that
	* doesn't need any massaging -- would be this:
	*
	* ksp->ks_snaptime = gethrtime();
	* if (rw == KSTAT_WRITE)
	* bcopy(buf, ksp->ks_data, ksp->ks_data_size);
	* else
	* bcopy(ksp->ks_data, buf, ksp->ks_data_size);
	* return (0);
	*
	* A more illuminating example is taking a snapshot of a linked list:
	*
	* ksp->ks_snaptime = gethrtime();
	* if (rw == KSTAT_WRITE)
	* return (EACCES); ... See below ...
	* for (foo = first_foo; foo; foo = foo->next) {
	* bcopy((char ) foo, (char ) buf, sizeof (struct foo));
	* buf = ((struct foo *) buf) + 1;
	* }
	* return (0);
	*
	* In the example above, we have decided that we don't want to allow
	* KSTAT_WRITE access, so we return EACCES if this is attempted.
	*
	* The key points are:
	*
	* (1) ks_snaptime must be set (via gethrtime()) to timestamp the data.
	* (2) Data gets copied from the kstat to the buffer on KSTAT_READ,
	* and from the buffer to the kstat on KSTAT_WRITE.
	* (3) ks_snapshot return values are: 0 for success, EACCES if you
	* don't allow KSTAT_WRITE, and EIO for any other type of error.
	*
	* Named kstats (see section on "Named statistics" below) containing long
	* strings (KSTAT_DATA_STRING) need special handling. The kstat driver
	* assumes that all strings are copied into the buffer after the array of
	* named kstats, and the pointers (KSTAT_NAMED_STR_PTR()) are updated to point
	* into the copy within the buffer. The default snapshot routine does this,
	* but overriding routines should contain at least the following:
	*
	* if (rw == KSTAT_READ) {
	* kstat_named_t *knp = buf;
	* char *end = knp + ksp->ks_ndata;
	* uint_t i;
	*
	* ... Do the regular copy ...
	* bcopy(ksp->ks_data, buf, sizeof (kstat_named_t) * ksp->ks_ndata);
	*
	* for (i = 0; i < ksp->ks_ndata; i++, knp++) {
	* if (knp[i].data_type == KSTAT_DATA_STRING &&
	* KSTAT_NAMED_STR_PTR(knp) != NULL) {
	* bcopy(KSTAT_NAMED_STR_PTR(knp), end,
	* KSTAT_NAMED_STR_BUFLEN(knp));
	* KSTAT_NAMED_STR_PTR(knp) = end;
	* end += KSTAT_NAMED_STR_BUFLEN(knp);
	* }
	* }
	*/

	/*
	* Named statistics.
	*
	* List of arbitrary name=value statistics.
	*/

	typedef struct kstat_named {
	char name[KSTAT_STRLEN]; /* name of counter */
	uchar_t data_type; /* data type */
	union {
	char c[16]; /* enough for 128-bit ints */
	int32_t i32;
	uint32_t ui32;
	struct {
	union {
	char ptr; / NULL-term string */
	#if defined(_KERNEL) && defined(_MULTI_DATAMODEL)
	caddr32_t ptr32;
	#endif
	char __pad[8]; /* 64-bit padding */
	} addr;
	uint32_t len; /* # bytes for strlen + '\0' */
	} str;
	/*
	* The int64_t and uint64_t types are not valid for a maximally conformant
	* 32-bit compilation environment (cc -Xc) using compilers prior to the
	* introduction of C99 conforming compiler (reference ISO/IEC 9899:1990).
	* In these cases, the visibility of i64 and ui64 is only permitted for
	* 64-bit compilation environments or 32-bit non-maximally conformant
	* C89 or C90 ANSI C compilation environments (cc -Xt and cc -Xa). In the
	* C99 ANSI C compilation environment, the long long type is supported.
	* The _INT64_TYPE is defined by the implementation (see sys/int_types.h).
	*/
	#if defined(_INT64_TYPE)
	int64_t i64;
	uint64_t ui64;
	#endif
	long l;
	ulong_t ul;

	/* These structure members are obsolete */

	longlong_t ll;
	u_longlong_t ull;
	float f;
	double d;
	} value; /* value of counter */
	} kstat_named_t;

	#define KSTAT_DATA_CHAR 0
	#define KSTAT_DATA_INT32 1
	#define KSTAT_DATA_UINT32 2
	#define KSTAT_DATA_INT64 3
	#define KSTAT_DATA_UINT64 4

	#if !defined(_LP64)
	#define KSTAT_DATA_LONG KSTAT_DATA_INT32
	#define KSTAT_DATA_ULONG KSTAT_DATA_UINT32
	#else
	#if !defined(_KERNEL)
	#define KSTAT_DATA_LONG KSTAT_DATA_INT64
	#define KSTAT_DATA_ULONG KSTAT_DATA_UINT64
	#else
	#define KSTAT_DATA_LONG 7 /* only visible to the kernel */
	#define KSTAT_DATA_ULONG 8 /* only visible to the kernel */
	#endif /* !_KERNEL */
	#endif /* !_LP64 */

	/*
	* Statistics exporting named kstats with long strings (KSTAT_DATA_STRING)
	* may not make the assumption that ks_data_size is equal to (ks_ndata * sizeof
	* (kstat_named_t)). ks_data_size in these cases is equal to the sum of the
	* amount of space required to store the strings (ie, the sum of
	* KSTAT_NAMED_STR_BUFLEN() for all KSTAT_DATA_STRING statistics) plus the
	* space required to store the kstat_named_t's.
	*
	* The default update routine will update ks_data_size automatically for
	* variable-length kstats containing long strings (using the default update
	* routine only makes sense if the string is the only thing that is changing
	* in size, and ks_ndata is constant). Fixed-length kstats containing long
	* strings must explicitly change ks_data_size (after creation but before
	* initialization) to reflect the correct amount of space required for the
	* long strings and the kstat_named_t's.
	*/
	#define KSTAT_DATA_STRING 9

	/* These types are obsolete */

	#define KSTAT_DATA_LONGLONG KSTAT_DATA_INT64
	#define KSTAT_DATA_ULONGLONG KSTAT_DATA_UINT64
	#define KSTAT_DATA_FLOAT 5
	#define KSTAT_DATA_DOUBLE 6

	#define KSTAT_NAMED_PTR(kptr) ((kstat_named_t *)(kptr)->ks_data)

	/*
	* Retrieve the pointer of the string contained in the given named kstat.
	*/
	#define KSTAT_NAMED_STR_PTR(knptr) ((knptr)->value.str.addr.ptr)

	/*
	* Retrieve the length of the buffer required to store the string in the given
	* named kstat.
	*/
	#define KSTAT_NAMED_STR_BUFLEN(knptr) ((knptr)->value.str.len)

	/*
	* Interrupt statistics.
	*
	* An interrupt is a hard interrupt (sourced from the hardware device
	* itself), a soft interrupt (induced by the system via the use of
	* some system interrupt source), a watchdog interrupt (induced by
	* a periodic timer call), spurious (an interrupt entry point was
	* entered but there was no interrupt condition to service),
	* or multiple service (an interrupt condition was detected and
	* serviced just prior to returning from any of the other types).
	*
	* Measurement of the spurious class of interrupts is useful for
	* autovectored devices in order to pinpoint any interrupt latency
	* problems in a particular system configuration.
	*
	* Devices that have more than one interrupt of the same
	* type should use multiple structures.
	*/

	#define KSTAT_INTR_HARD 0
	#define KSTAT_INTR_SOFT 1
	#define KSTAT_INTR_WATCHDOG 2
	#define KSTAT_INTR_SPURIOUS 3
	#define KSTAT_INTR_MULTSVC 4

	#define KSTAT_NUM_INTRS 5

	typedef struct kstat_intr {
	uint_t intrs[KSTAT_NUM_INTRS]; /* interrupt counters */
	} kstat_intr_t;

	#define KSTAT_INTR_PTR(kptr) ((kstat_intr_t *)(kptr)->ks_data)

	/*
	* I/O statistics.
	*/

	typedef struct kstat_io {

	/*
	* Basic counters.
	*
	* The counters should be updated at the end of service
	* (e.g., just prior to calling biodone()).
	*/

	u_longlong_t nread; /* number of bytes read */
	u_longlong_t nwritten; /* number of bytes written */
	uint_t reads; /* number of read operations */
	uint_t writes; /* number of write operations */

	/*
	* Accumulated time and queue length statistics.
	*
	* Accumulated time statistics are kept as a running sum
	* of "active" time. Queue length statistics are kept as a
	* running sum of the product of queue length and elapsed time
	* at that length -- i.e., a Riemann sum for queue length
	* integrated against time. (You can also think of the active time
	* as a Riemann sum, for the boolean function (queue_length > 0)
	* integrated against time, or you can think of it as the
	* Lebesgue measure of the set on which queue_length > 0.)
	*
	* ^
	* \| _________
	* 8 \| i4 \|
	* \| \| \|
	* Queue 6 \| \|
	* Length \| _________ \| \|
	* 4 \| i2 \|_______\| \|
	* \| \| i3 \|
	* 2_______\| \|
	* \| i1 \|
	* \|_______________________________\|
	* Time-> t1 t2 t3 t4
	*
	* At each change of state (entry or exit from the queue),
	* we add the elapsed time (since the previous state change)
	* to the active time if the queue length was non-zero during
	* that interval; and we add the product of the elapsed time
	* times the queue length to the running length*time sum.
	*
	* This method is generalizable to measuring residency
	* in any defined system: instead of queue lengths, think
	* of "outstanding RPC calls to server X".
	*
	* A large number of I/O subsystems have at least two basic
	* "lists" of transactions they manage: one for transactions
	* that have been accepted for processing but for which processing
	* has yet to begin, and one for transactions which are actively
	* being processed (but not done). For this reason, two cumulative
	* time statistics are defined here: wait (pre-service) time,
	* and run (service) time.
	*
	* All times are 64-bit nanoseconds (hrtime_t), as returned by
	* gethrtime().
	*
	* The units of cumulative busy time are accumulated nanoseconds.
	* The units of cumulative length*time products are elapsed time
	* times queue length.
	*
	* Updates to the fields below are performed implicitly by calls to
	* these five functions:
	*
	* kstat_waitq_enter()
	* kstat_waitq_exit()
	* kstat_runq_enter()
	* kstat_runq_exit()
	*
	* kstat_waitq_to_runq() (see below)
	* kstat_runq_back_to_waitq() (see below)
	*
	* Since kstat_waitq_exit() is typically followed immediately
	* by kstat_runq_enter(), there is a single kstat_waitq_to_runq()
	* function which performs both operations. This is a performance
	* win since only one timestamp is required.
	*
	* In some instances, it may be necessary to move a request from
	* the run queue back to the wait queue, e.g. for write throttling.
	* For these situations, call kstat_runq_back_to_waitq().
	*
	* These fields should never be updated by any other means.
	*/

	hrtime_t wtime; /* cumulative wait (pre-service) time */
	hrtime_t wlentime; /* cumulative wait lengthtime product /
	hrtime_t wlastupdate; /* last time wait queue changed */
	hrtime_t rtime; /* cumulative run (service) time */
	hrtime_t rlentime; /* cumulative run lengthtime product /
	hrtime_t rlastupdate; /* last time run queue changed */

	uint_t wcnt; /* count of elements in wait state */
	uint_t rcnt; /* count of elements in run state */

	} kstat_io_t;

	#define KSTAT_IO_PTR(kptr) ((kstat_io_t *)(kptr)->ks_data)

	/*
	* Event timer statistics - cumulative elapsed time and number of events.
	*
	* Updates to these fields are performed implicitly by calls to
	* kstat_timer_start() and kstat_timer_stop().
	*/

	typedef struct kstat_timer {
	char name[KSTAT_STRLEN]; /* event name */
	uchar_t resv; /* reserved */
	u_longlong_t num_events; /* number of events */
	hrtime_t elapsed_time; /* cumulative elapsed time */
	hrtime_t min_time; /* shortest event duration */
	hrtime_t max_time; /* longest event duration */
	hrtime_t start_time; /* previous event start time */
	hrtime_t stop_time; /* previous event stop time */
	} kstat_timer_t;

	#define KSTAT_TIMER_PTR(kptr) ((kstat_timer_t *)(kptr)->ks_data)

	#if defined(_KERNEL)

	#include <sys/t_lock.h>

	extern kid_t kstat_chain_id; /* bumped at each state change */
	extern void kstat_init(void); /* initialize kstat framework */

	/*
	* Adding and deleting kstats.
	*
	* The typical sequence to add a kstat is:
	*
	* ksp = kstat_create(module, instance, name, class, type, ndata, flags);
	* if (ksp) {
	* ... provider initialization, if necessary
	* kstat_install(ksp);
	* }
	*
	* There are three logically distinct steps here:
	*
	* Step 1: System Initialization (kstat_create)
	*
	* kstat_create() performs system initialization. kstat_create()
	* allocates memory for the entire kstat (header plus data), initializes
	* all header fields, initializes the data section to all zeroes, assigns
	* a unique KID, and puts the kstat onto the system's kstat chain.
	* The returned kstat is marked invalid (KSTAT_FLAG_INVALID is set),
	* because the provider (caller) has not yet had a chance to initialize
	* the data section.
	*
	* By default, kstats are exported to all zones on the system. A kstat may be
	* created via kstat_create_zone() to specify a zone to which the statistics
	* should be exported. kstat_zone_add() may be used to specify additional
	* zones to which the statistics are to be exported.
	*
	* Step 2: Provider Initialization
	*
	* The provider performs any necessary initialization of the data section,
	* e.g. setting the name fields in a KSTAT_TYPE_NAMED. Virtual kstats set
	* the ks_data field at this time. The provider may also set the ks_update,
	* ks_snapshot, ks_private, and ks_lock fields if necessary.
	*
	* Step 3: Installation (kstat_install)
	*
	* Once the kstat is completely initialized, kstat_install() clears the
	* INVALID flag, thus making the kstat accessible to the outside world.
	* kstat_install() also clears the DORMANT flag for persistent kstats.
	*
	* Removing a kstat from the system
	*
	* kstat_delete(ksp) removes ksp from the kstat chain and frees all
	* associated system resources. NOTE: When you call kstat_delete(),
	* you must NOT be holding that kstat's ks_lock. Otherwise, you may
	* deadlock with a kstat reader.
	*
	* Persistent kstats
	*
	* From the provider's point of view, persistence is transparent. The only
	* difference between ephemeral (normal) kstats and persistent kstats
	* is that you pass KSTAT_FLAG_PERSISTENT to kstat_create(). Magically,
	* this has the effect of making your data visible even when you're
	* not home. Persistence is important to tools like iostat, which want
	* to get a meaningful picture of disk activity. Without persistence,
	* raw disk i/o statistics could never accumulate: they would come and
	* go with each open/close of the raw device.
	*
	* The magic of persistence works by slightly altering the behavior of
	* kstat_create() and kstat_delete(). The first call to kstat_create()
	* creates a new kstat, as usual. However, kstat_delete() does not
	* actually delete the kstat: it performs one final update of the data
	* (i.e., calls the ks_update routine), marks the kstat as dormant, and
	* sets the ks_lock, ks_update, ks_private, and ks_snapshot fields back
	* to their default values (since they might otherwise point to garbage,
	* e.g. if the provider is going away). kstat clients can still access
	* the dormant kstat just like a live kstat; they just continue to see
	* the final data values as long as the kstat remains dormant.
	* All subsequent kstat_create() calls simply find the already-existing,
	* dormant kstat and return a pointer to it, without altering any fields.
	* The provider then performs its usual initialization sequence, and
	* calls kstat_install(). kstat_install() uses the old data values to
	* initialize the native data (i.e., ks_update is called with KSTAT_WRITE),
	* thus making it seem like you were never gone.
	*/

	extern kstat_t kstat_create(const char , int, const char , const char ,
	uchar_t, uint_t, uchar_t);
	extern kstat_t kstat_create_zone(const char , int, const char *,
	const char *, uchar_t, uint_t, uchar_t, zoneid_t);
	extern void kstat_install(kstat_t *);
	extern void kstat_delete(kstat_t *);
	extern void kstat_named_setstr(kstat_named_t knp, const char src);
	extern void kstat_set_string(char , const char );
	extern void kstat_delete_byname(const char , int, const char );
	extern void kstat_delete_byname_zone(const char , int, const char , zoneid_t);
	extern void kstat_named_init(kstat_named_t , const char , uchar_t);
	extern void kstat_timer_init(kstat_timer_t , const char );
	-extern void kstat_waitq_enter(kstat_io_t *);
	-extern void kstat_waitq_exit(kstat_io_t *);
	-extern void kstat_runq_enter(kstat_io_t *);
	-extern void kstat_runq_exit(kstat_io_t *);
	-extern void kstat_waitq_to_runq(kstat_io_t *);
	-extern void kstat_runq_back_to_waitq(kstat_io_t *);
	extern void kstat_timer_start(kstat_timer_t *);
	extern void kstat_timer_stop(kstat_timer_t *);

	extern void kstat_zone_add(kstat_t *, zoneid_t);
	extern void kstat_zone_remove(kstat_t *, zoneid_t);
	extern int kstat_zone_find(kstat_t *, zoneid_t);

	extern kstat_t *kstat_hold_bykid(kid_t kid, zoneid_t);
	extern kstat_t kstat_hold_byname(const char , int, const char *, zoneid_t);
	extern void kstat_rele(kstat_t *);

	#endif /* defined(_KERNEL) */

	#ifdef __cplusplus
	}
	#endif

	#endif /* _SYS_KSTAT_H */
	diff --git a/sys/contrib/openzfs/lib/libtpool/Makefile.am b/sys/contrib/openzfs/lib/libtpool/Makefile.am
	index aa8bde32f963..40fd137b4335 100644
	--- a/sys/contrib/openzfs/lib/libtpool/Makefile.am
	+++ b/sys/contrib/openzfs/lib/libtpool/Makefile.am
	@@ -1,11 +1,13 @@
	include $(top_srcdir)/config/Rules.am

	+AM_CFLAGS += -fvisibility=hidden
	+
	noinst_LTLIBRARIES = libtpool.la

	USER_C = \
	thread_pool.c \
	thread_pool_impl.h

	libtpool_la_SOURCES = $(USER_C)

	include $(top_srcdir)/config/CppCheck.am
	diff --git a/sys/contrib/openzfs/lib/libzfs/libzfs.abi b/sys/contrib/openzfs/lib/libzfs/libzfs.abi
	index 3dd8b2b14510..9a1d95d96ce9 100644
	--- a/sys/contrib/openzfs/lib/libzfs/libzfs.abi
	+++ b/sys/contrib/openzfs/lib/libzfs/libzfs.abi
	@@ -1,7804 +1,7767 @@
	<abi-corpus path='libzfs.so' architecture='elf-amd-x86_64' soname='libzfs.so.4'>
	<elf-needed>
	<dependency name='libzfs_core.so.3'/>
	<dependency name='libnvpair.so.3'/>
	<dependency name='libuutil.so.3'/>
	<dependency name='libm.so.6'/>
	<dependency name='libcrypto.so.1.1'/>
	<dependency name='libz.so.1'/>
	<dependency name='libdl.so.2'/>
	<dependency name='libpthread.so.0'/>
	<dependency name='libc.so.6'/>
	</elf-needed>
	<elf-function-symbols>
	<elf-symbol name='bookmark_namecheck' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='cityhash4' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='color_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='color_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='dataset_namecheck' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='dataset_nestcheck' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='entity_namecheck' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fletcher_2_byteswap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fletcher_2_incremental_byteswap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fletcher_2_incremental_native' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fletcher_2_native' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fletcher_4_byteswap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fletcher_4_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fletcher_4_impl_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fletcher_4_incremental_byteswap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fletcher_4_incremental_native' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fletcher_4_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fletcher_4_native' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fletcher_4_native_varsize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='fletcher_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='get_dataset_depth' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='getprop_uint64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='is_mounted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	- <elf-symbol name='libshare_nfs_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	- <elf-symbol name='libshare_smb_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_add_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_envvar_is_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_errno' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_error_action' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_error_description' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_error_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_free_str_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_mnttab_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_mnttab_cache' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_mnttab_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_mnttab_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_mnttab_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_mnttab_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_print_on_error' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_run_process' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_run_process_get_stdout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='libzfs_run_process_get_stdout_nopath' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='mountpoint_namecheck' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='permset_namecheck' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='pool_namecheck' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='printf_color' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	- <elf-symbol name='register_fstype' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='sa_commit_shares' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='sa_disable_share' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='sa_enable_share' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='sa_errorstr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='sa_is_shared' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='sa_validate_shareopts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='snapshot_namecheck' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfeature_depends_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfeature_is_supported' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfeature_is_valid_guid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfeature_lookup_guid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfeature_lookup_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_adjust_mount_options' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_allocatable_devs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_bookmark_exists' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_clone' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_commit_all_shares' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_commit_nfs_shares' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_commit_shares' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_commit_smb_shares' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_component_namecheck' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_create_ancestors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_crypto_attempt_load_keys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_crypto_clone_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_crypto_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_crypto_get_encryption_root' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_crypto_load_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_crypto_rewrap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_crypto_unload_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_dataset_exists' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_dataset_name_hidden' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_deleg_canonicalize_perm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_deleg_verify_nvlist' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_deleg_whokey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_destroy_snaps' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_destroy_snaps_nvl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_expand_proplist' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_foreach_mountpoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_get_all_props' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_get_clones_nvl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_get_fsacl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_get_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_get_holds' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_get_pool_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_get_pool_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_get_recvd_props' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_get_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_get_underlying_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_get_user_props' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_handle_dup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_hold' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_hold_nvl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_is_mounted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_is_shared' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_is_shared_nfs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_is_shared_smb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_iter_bookmarks' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_iter_children' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_iter_dependents' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_iter_filesystems' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_iter_mounted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_iter_root' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_iter_snapshots' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_iter_snapshots_sorted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_iter_snapspec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_mod_supported' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_mount' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_mount_at' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_mount_delegation_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_name_to_prop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_name_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_nicestrtonum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_parent_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_parse_mount_options' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_path_to_zhandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_promote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_align_right' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_column_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_default_numeric' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_default_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_delegatable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_encryption_key_param' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_get_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_get_numeric' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_get_recvd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_get_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_get_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_get_userquota' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_get_userquota_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_get_written' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_get_written_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_index_to_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_inherit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_inheritable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_is_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_random_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_readonly' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_set_list' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_setonce' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_string_to_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_to_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_userquota' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_valid_for_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_valid_keylocation' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_values' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_visible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prop_written' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_prune_proplist' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_receive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_refresh_properties' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_rename' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_rollback' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_save_arguments' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_send' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_send_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_send_progress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_send_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_send_resume_token_to_nvlist' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_send_saved' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_set_fsacl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_share' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_share_nfs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_share_smb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_shareall' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_show_diffs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='zfs_smb_acl_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
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	<var-decl name='mnt_mountp' type-id='type-id-17' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	<var-decl name='mnt_fstype' type-id='type-id-17' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='192'>
	<var-decl name='mnt_mntopts' type-id='type-id-17' visibility='default'/>
	</data-member>
	</class-decl>
	<pointer-type-def type-id='type-id-221' size-in-bits='64' id='type-id-222'/>
	<function-decl name='libzfs_mnttab_find' mangled-name='libzfs_mnttab_find' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='libzfs_mnttab_find'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-84' name='fsname'/>
	<parameter type-id='type-id-222' name='entry'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='pthread_mutex_lock' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-214'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='avl_numnodes' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-220'/>
	<return type-id='type-id-35'/>
	</function-decl>
	<function-decl name='avl_find' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-220'/>
	<parameter type-id='type-id-7'/>
	<parameter type-id='type-id-102'/>
	<return type-id='type-id-7'/>
	</function-decl>
	<function-decl name='getmntany' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-150'/>
	<parameter type-id='type-id-222'/>
	<parameter type-id='type-id-222'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='pthread_mutex_unlock' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-214'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='avl_add' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-220'/>
	<parameter type-id='type-id-7'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='libzfs_mnttab_add' mangled-name='libzfs_mnttab_add' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='libzfs_mnttab_add'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-84' name='special'/>
	<parameter type-id='type-id-84' name='mountp'/>
	<parameter type-id='type-id-84' name='mntopts'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='libzfs_mnttab_remove' mangled-name='libzfs_mnttab_remove' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='libzfs_mnttab_remove'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-84' name='fsname'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='avl_remove' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-220'/>
	<parameter type-id='type-id-7'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<pointer-type-def type-id='type-id-8' size-in-bits='64' id='type-id-223'/>
	<function-decl name='zfs_spa_version' mangled-name='zfs_spa_version' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_spa_version'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-223' name='spa_version'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_valid_proplist' mangled-name='zfs_valid_proplist' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_valid_proplist'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-13' name='type'/>
	<parameter type-id='type-id-15' name='nvl'/>
	<parameter type-id='type-id-22' name='zoned'/>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-11' name='zpool_hdl'/>
	<parameter type-id='type-id-16' name='key_params_ok'/>
	<parameter type-id='type-id-84' name='errbuf'/>
	<return type-id='type-id-15'/>
	</function-decl>
	<function-decl name='nvlist_alloc' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-107'/>
	<parameter type-id='type-id-5'/>
	<parameter type-id='type-id-8'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_prop_valid_for_type' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-8'/>
	<parameter type-id='type-id-76'/>
	<parameter type-id='type-id-50'/>
	<return type-id='type-id-50'/>
	</function-decl>
	<function-decl name='zfs_prop_readonly' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-85'/>
	<return type-id='type-id-50'/>
	</function-decl>
	<function-decl name='zfs_prop_setonce' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-85'/>
	<return type-id='type-id-50'/>
	</function-decl>
	<function-decl name='zfs_prop_encryption_key_param' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-85'/>
	<return type-id='type-id-50'/>
	</function-decl>
	<function-decl name='zprop_parse_value' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-91'/>
	<parameter type-id='type-id-133'/>
	<parameter type-id='type-id-8'/>
	<parameter type-id='type-id-76'/>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-88'/>
	<parameter type-id='type-id-102'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_prop_user' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-50'/>
	</function-decl>
	<function-decl name='nvpair_type' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-133'/>
	<return type-id='type-id-132'/>
	</function-decl>
	<function-decl name='nvpair_value_string' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-133'/>
	<parameter type-id='type-id-88'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_prop_userquota' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-50'/>
	</function-decl>
	<function-decl name='zfs_nicestrtonum' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-91'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-102'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='nvpair_value_uint64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-133'/>
	<parameter type-id='type-id-102'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='mountpoint_namecheck' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-213'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_prop_valid_keylocation' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-50'/>
	<return type-id='type-id-50'/>
	</function-decl>
	<function-decl name='zpool_prop_get_feature' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-126'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-17'/>
	<parameter type-id='type-id-35'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_parse_options' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-17'/>
	<parameter type-id='type-id-89'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='nvlist_add_uint64_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-102'/>
	<parameter type-id='type-id-5'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_prop_written' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-50'/>
	</function-decl>
	<function-decl name='zfs_nicebytes' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-17'/>
	<parameter type-id='type-id-35'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<class-decl name='passwd' size-in-bits='384' is-struct='yes' visibility='default' id='type-id-224'>
	<data-member access='public' layout-offset-in-bits='0'>
	<var-decl name='pw_name' type-id='type-id-17' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	<var-decl name='pw_passwd' type-id='type-id-17' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	<var-decl name='pw_uid' type-id='type-id-191' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='160'>
	<var-decl name='pw_gid' type-id='type-id-225' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='192'>
	<var-decl name='pw_gecos' type-id='type-id-17' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='256'>
	<var-decl name='pw_dir' type-id='type-id-17' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='320'>
	<var-decl name='pw_shell' type-id='type-id-17' visibility='default'/>
	</data-member>
	</class-decl>
	<typedef-decl name='__gid_t' type-id='type-id-5' id='type-id-225'/>
	<pointer-type-def type-id='type-id-224' size-in-bits='64' id='type-id-226'/>
	<function-decl name='getpwnam' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-226'/>
	</function-decl>
	<class-decl name='group' size-in-bits='256' is-struct='yes' visibility='default' id='type-id-227'>
	<data-member access='public' layout-offset-in-bits='0'>
	<var-decl name='gr_name' type-id='type-id-17' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	<var-decl name='gr_passwd' type-id='type-id-17' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	<var-decl name='gr_gid' type-id='type-id-225' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='192'>
	<var-decl name='gr_mem' type-id='type-id-88' visibility='default'/>
	</data-member>
	</class-decl>
	<pointer-type-def type-id='type-id-227' size-in-bits='64' id='type-id-228'/>
	<function-decl name='getgrnam' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-228'/>
	</function-decl>
	<typedef-decl name='zfs_prop_t' type-id='type-id-85' id='type-id-229'/>
	<function-decl name='zfs_prop_get_int' mangled-name='zfs_prop_get_int' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_get_int'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-229' name='prop'/>
	<return type-id='type-id-22'/>
	</function-decl>
	<function-decl name='zfs_prop_set' mangled-name='zfs_prop_set' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_set'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-84' name='propname'/>
	<parameter type-id='type-id-84' name='propval'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_prop_set_list' mangled-name='zfs_prop_set_list' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_set_list'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-15' name='props'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='fnvlist_free' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='fnvlist_add_uint64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-35'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='zvol_volsize_to_reservation' mangled-name='zvol_volsize_to_reservation' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zvol_volsize_to_reservation'>
	<parameter type-id='type-id-11' name='zph'/>
	<parameter type-id='type-id-22' name='volsize'/>
	<parameter type-id='type-id-15' name='props'/>
	<return type-id='type-id-22'/>
	</function-decl>
	<function-decl name='fnvpair_value_uint64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-133'/>
	<return type-id='type-id-35'/>
	</function-decl>
	<class-decl name='prop_changelist' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-230'/>
	<pointer-type-def type-id='type-id-230' size-in-bits='64' id='type-id-231'/>
	<function-decl name='changelist_gather' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-82'/>
	<parameter type-id='type-id-85'/>
	<parameter type-id='type-id-8'/>
	<parameter type-id='type-id-8'/>
	<return type-id='type-id-231'/>
	</function-decl>
	<function-decl name='changelist_haszonedchild' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-231'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='changelist_prefix' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-231'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zcmd_write_src_nvlist' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-91'/>
	<parameter type-id='type-id-122'/>
	<parameter type-id='type-id-104'/>
	<return type-id='type-id-8'/>
	</function-decl>
	- <function-decl name='zfs_setprop_error' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-91'/>
	- <parameter type-id='type-id-85'/>
	- <parameter type-id='type-id-8'/>
	- <parameter type-id='type-id-17'/>
	- <return type-id='type-id-6'/>
	- </function-decl>
	<function-decl name='changelist_free' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-231'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='changelist_postfix' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-231'/>
	<return type-id='type-id-8'/>
	</function-decl>
	+ <function-decl name='zfs_setprop_error' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-91'/>
	+ <parameter type-id='type-id-85'/>
	+ <parameter type-id='type-id-8'/>
	+ <parameter type-id='type-id-17'/>
	+ <return type-id='type-id-6'/>
	+ </function-decl>
	<function-decl name='nvlist_remove_all' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_prop_inherit' mangled-name='zfs_prop_inherit' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_inherit'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-84' name='propname'/>
	<parameter type-id='type-id-16' name='received'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_prop_inheritable' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-85'/>
	<return type-id='type-id-50'/>
	</function-decl>
	<function-decl name='getprop_uint64' mangled-name='getprop_uint64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='getprop_uint64'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-229' name='prop'/>
	<parameter type-id='type-id-88' name='source'/>
	<return type-id='type-id-22'/>
	</function-decl>
	<function-decl name='zfs_prop_default_numeric' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-85'/>
	<return type-id='type-id-35'/>
	</function-decl>
	<function-decl name='zfs_prop_get_recvd' mangled-name='zfs_prop_get_recvd' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_get_recvd'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-84' name='propname'/>
	<parameter type-id='type-id-17' name='propbuf'/>
	<parameter type-id='type-id-28' name='proplen'/>
	<parameter type-id='type-id-16' name='literal'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<typedef-decl name='zprop_source_t' type-id='type-id-86' id='type-id-232'/>
	<pointer-type-def type-id='type-id-232' size-in-bits='64' id='type-id-233'/>
	<function-decl name='zfs_prop_get' mangled-name='zfs_prop_get' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_get'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-229' name='prop'/>
	<parameter type-id='type-id-17' name='propbuf'/>
	<parameter type-id='type-id-28' name='proplen'/>
	<parameter type-id='type-id-233' name='src'/>
	<parameter type-id='type-id-17' name='statbuf'/>
	<parameter type-id='type-id-28' name='statlen'/>
	<parameter type-id='type-id-16' name='literal'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<enum-decl name='__anonymous_enum__' is-anonymous='yes' id='type-id-234'>
	<underlying-type type-id='type-id-49'/>
	<enumerator name='PROP_TYPE_NUMBER' value='0'/>
	<enumerator name='PROP_TYPE_STRING' value='1'/>
	<enumerator name='PROP_TYPE_INDEX' value='2'/>
	</enum-decl>
	<function-decl name='zfs_prop_get_type' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-85'/>
	<return type-id='type-id-234'/>
	</function-decl>
	<function-decl name='zfs_nicenum' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-17'/>
	<parameter type-id='type-id-35'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<class-decl name='tm' size-in-bits='448' is-struct='yes' visibility='default' id='type-id-235'>
	<data-member access='public' layout-offset-in-bits='0'>
	<var-decl name='tm_sec' type-id='type-id-8' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='32'>
	<var-decl name='tm_min' type-id='type-id-8' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	<var-decl name='tm_hour' type-id='type-id-8' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='96'>
	<var-decl name='tm_mday' type-id='type-id-8' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	<var-decl name='tm_mon' type-id='type-id-8' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='160'>
	<var-decl name='tm_year' type-id='type-id-8' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='192'>
	<var-decl name='tm_wday' type-id='type-id-8' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='224'>
	<var-decl name='tm_yday' type-id='type-id-8' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='256'>
	<var-decl name='tm_isdst' type-id='type-id-8' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='320'>
	<var-decl name='tm_gmtoff' type-id='type-id-54' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='384'>
	<var-decl name='tm_zone' type-id='type-id-84' visibility='default'/>
	</data-member>
	</class-decl>
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	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-240'/>
	<return type-id='type-id-35'/>
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	<function-decl name='zpool_get_prop' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-126'/>
	<parameter type-id='type-id-142'/>
	<parameter type-id='type-id-17'/>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-87'/>
	<parameter type-id='type-id-50'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<pointer-type-def type-id='type-id-84' size-in-bits='64' id='type-id-241'/>
	<function-decl name='zfs_prop_index_to_string' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-85'/>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-241'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_get_clones_nvl' mangled-name='zfs_get_clones_nvl' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_get_clones_nvl'>
	<parameter type-id='type-id-135' name='zhp'/>
	<return type-id='type-id-15'/>
	</function-decl>
	<function-decl name='strsep' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-88'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-17'/>
	</function-decl>
	<function-decl name='nvlist_add_nvlist' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-104'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='fnvlist_add_boolean' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='fnvlist_add_string' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='lzc_channel_program_nosync' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-107'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='fnvlist_lookup_nvlist' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-104'/>
	</function-decl>
	<pointer-type-def type-id='type-id-54' size-in-bits='64' id='type-id-242'/>
	<function-decl name='nvlist_lookup_int64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-242'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_prop_default_string' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-85'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='fnvlist_lookup_string' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-17'/>
	</function-decl>
	<pointer-type-def type-id='type-id-102' size-in-bits='64' id='type-id-243'/>
	<pointer-type-def type-id='type-id-5' size-in-bits='64' id='type-id-244'/>
	<function-decl name='nvlist_lookup_uint64_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-243'/>
	<parameter type-id='type-id-244'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='nvlist_empty' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<return type-id='type-id-50'/>
	</function-decl>
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	<data-member access='public' layout-offset-in-bits='0'>
	<var-decl name='mnt_fsname' type-id='type-id-17' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	<var-decl name='mnt_dir' type-id='type-id-17' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	<var-decl name='mnt_type' type-id='type-id-17' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='192'>
	<var-decl name='mnt_opts' type-id='type-id-17' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='256'>
	<var-decl name='mnt_freq' type-id='type-id-8' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='288'>
	<var-decl name='mnt_passno' type-id='type-id-8' visibility='default'/>
	</data-member>
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	<pointer-type-def type-id='type-id-246' size-in-bits='64' id='type-id-247'/>
	<function-decl name='hasmntopt' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-247'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-17'/>
	</function-decl>
	<pointer-type-def type-id='type-id-22' size-in-bits='64' id='type-id-248'/>
	<function-decl name='zfs_prop_get_numeric' mangled-name='zfs_prop_get_numeric' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_get_numeric'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-229' name='prop'/>
	<parameter type-id='type-id-248' name='value'/>
	<parameter type-id='type-id-233' name='src'/>
	<parameter type-id='type-id-17' name='statbuf'/>
	<parameter type-id='type-id-28' name='statlen'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_error_fmt' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-91'/>
	<parameter type-id='type-id-8'/>
	<parameter type-id='type-id-84'/>
	<parameter is-variadic='yes'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_prop_get_userquota_int' mangled-name='zfs_prop_get_userquota_int' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_get_userquota_int'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-84' name='propname'/>
	<parameter type-id='type-id-248' name='propvalue'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_prop_get_userquota' mangled-name='zfs_prop_get_userquota' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_get_userquota'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-84' name='propname'/>
	<parameter type-id='type-id-17' name='propbuf'/>
	<parameter type-id='type-id-8' name='proplen'/>
	<parameter type-id='type-id-16' name='literal'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_prop_get_written_int' mangled-name='zfs_prop_get_written_int' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_get_written_int'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-84' name='propname'/>
	<parameter type-id='type-id-248' name='propvalue'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_prop_get_written' mangled-name='zfs_prop_get_written' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_get_written'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-84' name='propname'/>
	<parameter type-id='type-id-17' name='propbuf'/>
	<parameter type-id='type-id-8' name='proplen'/>
	<parameter type-id='type-id-16' name='literal'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<qualified-type-def type-id='type-id-134' const='yes' id='type-id-249'/>
	<pointer-type-def type-id='type-id-249' size-in-bits='64' id='type-id-250'/>
	<function-decl name='zfs_get_name' mangled-name='zfs_get_name' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_get_name'>
	<parameter type-id='type-id-250' name='zhp'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='zfs_get_pool_name' mangled-name='zfs_get_pool_name' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_get_pool_name'>
	<parameter type-id='type-id-250' name='zhp'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='zfs_get_type' mangled-name='zfs_get_type' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_get_type'>
	<parameter type-id='type-id-250' name='zhp'/>
	<return type-id='type-id-13'/>
	</function-decl>
	<function-decl name='zfs_get_underlying_type' mangled-name='zfs_get_underlying_type' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_get_underlying_type'>
	<parameter type-id='type-id-250' name='zhp'/>
	<return type-id='type-id-13'/>
	</function-decl>
	<function-decl name='zfs_parent_name' mangled-name='zfs_parent_name' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_parent_name'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-17' name='buf'/>
	<parameter type-id='type-id-28' name='buflen'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_dataset_exists' mangled-name='zfs_dataset_exists' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_dataset_exists'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-84' name='path'/>
	<parameter type-id='type-id-13' name='types'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='zfs_create' mangled-name='zfs_create' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_create'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-84' name='path'/>
	<parameter type-id='type-id-13' name='type'/>
	<parameter type-id='type-id-15' name='props'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_share' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-82'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_commit_all_shares' visibility='default' binding='global' size-in-bits='64'>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='dataset_nestcheck' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_open' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-91'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-126'/>
	</function-decl>
	<pointer-type-def type-id='type-id-73' size-in-bits='64' id='type-id-251'/>
	<function-decl name='zfs_crypto_create' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-91'/>
	<parameter type-id='type-id-17'/>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-50'/>
	<parameter type-id='type-id-251'/>
	<parameter type-id='type-id-244'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<enum-decl name='lzc_dataset_type' id='type-id-252'>
	<underlying-type type-id='type-id-49'/>
	<enumerator name='LZC_DATSET_TYPE_ZFS' value='2'/>
	<enumerator name='LZC_DATSET_TYPE_ZVOL' value='3'/>
	</enum-decl>
	<function-decl name='lzc_create' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-252'/>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-73'/>
	<parameter type-id='type-id-5'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_create_ancestors' mangled-name='zfs_create_ancestors' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_create_ancestors'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-84' name='path'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_destroy' mangled-name='zfs_destroy' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_destroy'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-16' name='defer'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='lzc_destroy_bookmarks' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-107'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='lzc_destroy_snaps' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-50'/>
	<parameter type-id='type-id-107'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_standard_error_fmt' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-91'/>
	<parameter type-id='type-id-8'/>
	<parameter type-id='type-id-84'/>
	<parameter is-variadic='yes'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='lzc_destroy' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_destroy_snaps' mangled-name='zfs_destroy_snaps' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_destroy_snaps'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-17' name='snapname'/>
	<parameter type-id='type-id-16' name='defer'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_destroy_snaps_nvl' mangled-name='zfs_destroy_snaps_nvl' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_destroy_snaps_nvl'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-15' name='snaps'/>
	<parameter type-id='type-id-16' name='defer'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='lzc_exists' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-50'/>
	</function-decl>
	<function-decl name='nvlist_add_boolean' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='fnvpair_value_int32' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-133'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_clone' mangled-name='zfs_clone' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_clone'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-84' name='target'/>
	<parameter type-id='type-id-15' name='props'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_crypto_clone_check' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-91'/>
	<parameter type-id='type-id-82'/>
	<parameter type-id='type-id-17'/>
	<parameter type-id='type-id-104'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='lzc_clone' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-104'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_promote' mangled-name='zfs_promote' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_promote'>
	<parameter type-id='type-id-135' name='zhp'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='lzc_promote' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-17'/>
	<parameter type-id='type-id-8'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_snapshot_nvl' mangled-name='zfs_snapshot_nvl' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_snapshot_nvl'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-15' name='snaps'/>
	<parameter type-id='type-id-15' name='props'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='lzc_snapshot' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-107'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_snapshot' mangled-name='zfs_snapshot' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_snapshot'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-84' name='path'/>
	<parameter type-id='type-id-16' name='recursive'/>
	<parameter type-id='type-id-15' name='props'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_rollback' mangled-name='zfs_rollback' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_rollback'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-135' name='snap'/>
	<parameter type-id='type-id-16' name='force'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_iter_snapshots' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-82'/>
	<parameter type-id='type-id-50'/>
	<parameter type-id='type-id-95'/>
	<parameter type-id='type-id-7'/>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-35'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='lzc_rollback_to' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<class-decl name='renameflags' size-in-bits='32' is-struct='yes' visibility='default' id='type-id-253'>
	<data-member access='public' layout-offset-in-bits='31'>
	<var-decl name='recursive' type-id='type-id-8' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='30'>
	<var-decl name='nounmount' type-id='type-id-8' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='29'>
	<var-decl name='forceunmount' type-id='type-id-8' visibility='default'/>
	</data-member>
	</class-decl>
	<typedef-decl name='renameflags_t' type-id='type-id-253' id='type-id-254'/>
	<function-decl name='zfs_rename' mangled-name='zfs_rename' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_rename'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-84' name='target'/>
	<parameter type-id='type-id-254' name='flags'/>
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	<function-decl name='sa_disable_share' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-17'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='sa_errorstr' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-8'/>
	<return type-id='type-id-17'/>
	</function-decl>
	<function-decl name='zfs_shareall' mangled-name='zfs_shareall' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_shareall'>
	<parameter type-id='type-id-135' name='zhp'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_unmountall' mangled-name='zfs_unmountall' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_unmountall'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-8' name='flags'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_is_shared' mangled-name='zfs_is_shared' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_is_shared'>
	<parameter type-id='type-id-135' name='zhp'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='sa_enable_share' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-17'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_share' mangled-name='zfs_share' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_share'>
	<parameter type-id='type-id-135' name='zhp'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_unshare' mangled-name='zfs_unshare' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_unshare'>
	<parameter type-id='type-id-135' name='zhp'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='changelist_unshare' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-231'/>
	<parameter type-id='type-id-294'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_unshareall' mangled-name='zfs_unshareall' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_unshareall'>
	<parameter type-id='type-id-135' name='zhp'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_is_shared_nfs' mangled-name='zfs_is_shared_nfs' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_is_shared_nfs'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-88' name='where'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='zfs_is_shared_smb' mangled-name='zfs_is_shared_smb' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_is_shared_smb'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-88' name='where'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='sa_validate_shareopts' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-17'/>
	<parameter type-id='type-id-17'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_commit_shares' mangled-name='zfs_commit_shares' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_commit_shares'>
	<parameter type-id='type-id-84' name='proto'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='zfs_share_nfs' mangled-name='zfs_share_nfs' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_share_nfs'>
	<parameter type-id='type-id-135' name='zhp'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_share_smb' mangled-name='zfs_share_smb' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_share_smb'>
	<parameter type-id='type-id-135' name='zhp'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_unshare_nfs' mangled-name='zfs_unshare_nfs' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_unshare_nfs'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-84' name='mountpoint'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_unshare_smb' mangled-name='zfs_unshare_smb' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_unshare_smb'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-84' name='mountpoint'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_unshareall_nfs' mangled-name='zfs_unshareall_nfs' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_unshareall_nfs'>
	<parameter type-id='type-id-135' name='zhp'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_unshareall_smb' mangled-name='zfs_unshareall_smb' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_unshareall_smb'>
	<parameter type-id='type-id-135' name='zhp'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_unshareall_bypath' mangled-name='zfs_unshareall_bypath' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_unshareall_bypath'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-84' name='mountpoint'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_unshareall_bytype' mangled-name='zfs_unshareall_bytype' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_unshareall_bytype'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-84' name='mountpoint'/>
	<parameter type-id='type-id-84' name='proto'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='rmdir' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<class-decl name='get_all_cb' size-in-bits='192' is-struct='yes' visibility='default' id='type-id-309'>
	<data-member access='public' layout-offset-in-bits='0'>
	<var-decl name='cb_handles' type-id='type-id-310' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	<var-decl name='cb_alloc' type-id='type-id-28' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	<var-decl name='cb_used' type-id='type-id-28' visibility='default'/>
	</data-member>
	</class-decl>
	<pointer-type-def type-id='type-id-135' size-in-bits='64' id='type-id-310'/>
	<typedef-decl name='get_all_cb_t' type-id='type-id-309' id='type-id-311'/>
	<pointer-type-def type-id='type-id-311' size-in-bits='64' id='type-id-312'/>
	<function-decl name='libzfs_add_handle' mangled-name='libzfs_add_handle' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='libzfs_add_handle'>
	<parameter type-id='type-id-312' name='cbp'/>
	<parameter type-id='type-id-135' name='zhp'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='zfs_realloc' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-91'/>
	<parameter type-id='type-id-7'/>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-35'/>
	<return type-id='type-id-7'/>
	</function-decl>
	<function-decl name='zfs_foreach_mountpoint' mangled-name='zfs_foreach_mountpoint' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_foreach_mountpoint'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-310' name='handles'/>
	<parameter type-id='type-id-28' name='num_handles'/>
	<parameter type-id='type-id-138' name='func'/>
	<parameter type-id='type-id-7' name='data'/>
	<parameter type-id='type-id-16' name='parallel'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='qsort' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-7'/>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-62'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<class-decl name='tpool' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-313'/>
	<pointer-type-def type-id='type-id-313' size-in-bits='64' id='type-id-314'/>
	<pointer-type-def type-id='type-id-272' size-in-bits='64' id='type-id-315'/>
	<function-decl name='tpool_create' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-5'/>
	<parameter type-id='type-id-5'/>
	<parameter type-id='type-id-5'/>
	<parameter type-id='type-id-315'/>
	<return type-id='type-id-314'/>
	</function-decl>
	<pointer-type-def type-id='type-id-316' size-in-bits='64' id='type-id-317'/>
	<function-decl name='tpool_dispatch' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-314'/>
	<parameter type-id='type-id-317'/>
	<parameter type-id='type-id-7'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='tpool_wait' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-314'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='tpool_destroy' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-314'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='zpool_enable_datasets' mangled-name='zpool_enable_datasets' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_enable_datasets'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-84' name='mntopts'/>
	<parameter type-id='type-id-8' name='flags'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_disable_datasets' mangled-name='zpool_disable_datasets' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_disable_datasets'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-16' name='force'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-type size-in-bits='64' id='type-id-316'>
	<parameter type-id='type-id-7'/>
	<return type-id='type-id-6'/>
	</function-type>
	</abi-instr>
	<abi-instr version='1.0' address-size='64' path='libzfs_pool.c' comp-dir-path='/home/nabijaczleweli/store/code/zfs/lib/libzfs' language='LANG_C99'>
	<enum-decl name='__anonymous_enum__' is-anonymous='yes' id='type-id-318'>
	<underlying-type type-id='type-id-49'/>
	<enumerator name='ZPOOL_COMPATIBILITY_OK' value='0'/>
	<enumerator name='ZPOOL_COMPATIBILITY_WARNTOKEN' value='1'/>
	<enumerator name='ZPOOL_COMPATIBILITY_BADTOKEN' value='2'/>
	<enumerator name='ZPOOL_COMPATIBILITY_BADFILE' value='3'/>
	<enumerator name='ZPOOL_COMPATIBILITY_NOFILES' value='4'/>
	</enum-decl>
	<typedef-decl name='zpool_compat_status_t' type-id='type-id-318' id='type-id-319'/>
	<function-decl name='zpool_load_compat' mangled-name='zpool_load_compat' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_load_compat'>
	<parameter type-id='type-id-84' name='compat'/>
	<parameter type-id='type-id-106' name='features'/>
	<parameter type-id='type-id-17' name='report'/>
	<parameter type-id='type-id-28' name='rlen'/>
	<return type-id='type-id-319'/>
	</function-decl>
	<function-decl name='zpool_props_refresh' mangled-name='zpool_props_refresh' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_props_refresh'>
	<parameter type-id='type-id-11' name='zhp'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<typedef-decl name='zpool_prop_t' type-id='type-id-142' id='type-id-320'/>
	<function-decl name='zpool_get_prop_int' mangled-name='zpool_get_prop_int' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_get_prop_int'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-320' name='prop'/>
	<parameter type-id='type-id-233' name='src'/>
	<return type-id='type-id-22'/>
	</function-decl>
	<function-decl name='zpool_prop_to_name' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-142'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='zpool_prop_default_numeric' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-142'/>
	<return type-id='type-id-35'/>
	</function-decl>
	<enum-decl name='vdev_state' id='type-id-321'>
	<underlying-type type-id='type-id-49'/>
	<enumerator name='VDEV_STATE_UNKNOWN' value='0'/>
	<enumerator name='VDEV_STATE_CLOSED' value='1'/>
	<enumerator name='VDEV_STATE_OFFLINE' value='2'/>
	<enumerator name='VDEV_STATE_REMOVED' value='3'/>
	<enumerator name='VDEV_STATE_CANT_OPEN' value='4'/>
	<enumerator name='VDEV_STATE_FAULTED' value='5'/>
	<enumerator name='VDEV_STATE_DEGRADED' value='6'/>
	<enumerator name='VDEV_STATE_HEALTHY' value='7'/>
	</enum-decl>
	<typedef-decl name='vdev_state_t' type-id='type-id-321' id='type-id-322'/>
	<enum-decl name='vdev_aux' id='type-id-323'>
	<underlying-type type-id='type-id-49'/>
	<enumerator name='VDEV_AUX_NONE' value='0'/>
	<enumerator name='VDEV_AUX_OPEN_FAILED' value='1'/>
	<enumerator name='VDEV_AUX_CORRUPT_DATA' value='2'/>
	<enumerator name='VDEV_AUX_NO_REPLICAS' value='3'/>
	<enumerator name='VDEV_AUX_BAD_GUID_SUM' value='4'/>
	<enumerator name='VDEV_AUX_TOO_SMALL' value='5'/>
	<enumerator name='VDEV_AUX_BAD_LABEL' value='6'/>
	<enumerator name='VDEV_AUX_VERSION_NEWER' value='7'/>
	<enumerator name='VDEV_AUX_VERSION_OLDER' value='8'/>
	<enumerator name='VDEV_AUX_UNSUP_FEAT' value='9'/>
	<enumerator name='VDEV_AUX_SPARED' value='10'/>
	<enumerator name='VDEV_AUX_ERR_EXCEEDED' value='11'/>
	<enumerator name='VDEV_AUX_IO_FAILURE' value='12'/>
	<enumerator name='VDEV_AUX_BAD_LOG' value='13'/>
	<enumerator name='VDEV_AUX_EXTERNAL' value='14'/>
	<enumerator name='VDEV_AUX_SPLIT_POOL' value='15'/>
	<enumerator name='VDEV_AUX_BAD_ASHIFT' value='16'/>
	<enumerator name='VDEV_AUX_EXTERNAL_PERSIST' value='17'/>
	<enumerator name='VDEV_AUX_ACTIVE' value='18'/>
	<enumerator name='VDEV_AUX_CHILDREN_OFFLINE' value='19'/>
	<enumerator name='VDEV_AUX_ASHIFT_TOO_BIG' value='20'/>
	</enum-decl>
	<typedef-decl name='vdev_aux_t' type-id='type-id-323' id='type-id-324'/>
	<function-decl name='zpool_state_to_name' mangled-name='zpool_state_to_name' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_state_to_name'>
	<parameter type-id='type-id-322' name='state'/>
	<parameter type-id='type-id-324' name='aux'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='zpool_pool_state_to_name' mangled-name='zpool_pool_state_to_name' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_pool_state_to_name'>
	<parameter type-id='type-id-290' name='state'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='zpool_get_state_str' mangled-name='zpool_get_state_str' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_get_state_str'>
	<parameter type-id='type-id-11' name='zhp'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<enum-decl name='__anonymous_enum__' is-anonymous='yes' id='type-id-325'>
	<underlying-type type-id='type-id-49'/>
	<enumerator name='ZPOOL_STATUS_CORRUPT_CACHE' value='0'/>
	<enumerator name='ZPOOL_STATUS_MISSING_DEV_R' value='1'/>
	<enumerator name='ZPOOL_STATUS_MISSING_DEV_NR' value='2'/>
	<enumerator name='ZPOOL_STATUS_CORRUPT_LABEL_R' value='3'/>
	<enumerator name='ZPOOL_STATUS_CORRUPT_LABEL_NR' value='4'/>
	<enumerator name='ZPOOL_STATUS_BAD_GUID_SUM' value='5'/>
	<enumerator name='ZPOOL_STATUS_CORRUPT_POOL' value='6'/>
	<enumerator name='ZPOOL_STATUS_CORRUPT_DATA' value='7'/>
	<enumerator name='ZPOOL_STATUS_FAILING_DEV' value='8'/>
	<enumerator name='ZPOOL_STATUS_VERSION_NEWER' value='9'/>
	<enumerator name='ZPOOL_STATUS_HOSTID_MISMATCH' value='10'/>
	<enumerator name='ZPOOL_STATUS_HOSTID_ACTIVE' value='11'/>
	<enumerator name='ZPOOL_STATUS_HOSTID_REQUIRED' value='12'/>
	<enumerator name='ZPOOL_STATUS_IO_FAILURE_WAIT' value='13'/>
	<enumerator name='ZPOOL_STATUS_IO_FAILURE_CONTINUE' value='14'/>
	<enumerator name='ZPOOL_STATUS_IO_FAILURE_MMP' value='15'/>
	<enumerator name='ZPOOL_STATUS_BAD_LOG' value='16'/>
	<enumerator name='ZPOOL_STATUS_ERRATA' value='17'/>
	<enumerator name='ZPOOL_STATUS_UNSUP_FEAT_READ' value='18'/>
	<enumerator name='ZPOOL_STATUS_UNSUP_FEAT_WRITE' value='19'/>
	<enumerator name='ZPOOL_STATUS_FAULTED_DEV_R' value='20'/>
	<enumerator name='ZPOOL_STATUS_FAULTED_DEV_NR' value='21'/>
	<enumerator name='ZPOOL_STATUS_VERSION_OLDER' value='22'/>
	<enumerator name='ZPOOL_STATUS_FEAT_DISABLED' value='23'/>
	<enumerator name='ZPOOL_STATUS_RESILVERING' value='24'/>
	<enumerator name='ZPOOL_STATUS_OFFLINE_DEV' value='25'/>
	<enumerator name='ZPOOL_STATUS_REMOVED_DEV' value='26'/>
	<enumerator name='ZPOOL_STATUS_REBUILDING' value='27'/>
	<enumerator name='ZPOOL_STATUS_REBUILD_SCRUB' value='28'/>
	<enumerator name='ZPOOL_STATUS_NON_NATIVE_ASHIFT' value='29'/>
	<enumerator name='ZPOOL_STATUS_COMPATIBILITY_ERR' value='30'/>
	<enumerator name='ZPOOL_STATUS_INCOMPATIBLE_FEAT' value='31'/>
	<enumerator name='ZPOOL_STATUS_OK' value='32'/>
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	<enum-decl name='zpool_errata' id='type-id-326'>
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	<enumerator name='ZPOOL_ERRATA_ZOL_2094_SCRUB' value='1'/>
	<enumerator name='ZPOOL_ERRATA_ZOL_2094_ASYNC_DESTROY' value='2'/>
	<enumerator name='ZPOOL_ERRATA_ZOL_6845_ENCRYPTION' value='3'/>
	<enumerator name='ZPOOL_ERRATA_ZOL_8308_ENCRYPTION' value='4'/>
	</enum-decl>
	<pointer-type-def type-id='type-id-326' size-in-bits='64' id='type-id-327'/>
	<function-decl name='zpool_get_status' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-126'/>
	<parameter type-id='type-id-88'/>
	<parameter type-id='type-id-327'/>
	<return type-id='type-id-325'/>
	</function-decl>
	<function-decl name='zpool_get_state' mangled-name='zpool_get_state' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_get_state'>
	<parameter type-id='type-id-11' name='zhp'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_get_prop' mangled-name='zpool_get_prop' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_get_prop'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-320' name='prop'/>
	<parameter type-id='type-id-17' name='buf'/>
	<parameter type-id='type-id-28' name='len'/>
	<parameter type-id='type-id-233' name='srctype'/>
	<parameter type-id='type-id-16' name='literal'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_prop_get_type' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-142'/>
	<return type-id='type-id-234'/>
	</function-decl>
	<function-decl name='zpool_prop_index_to_string' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-142'/>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-241'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_get_name' mangled-name='zpool_get_name' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_get_name'>
	<parameter type-id='type-id-11' name='zhp'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='zpool_prop_default_string' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-142'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='zpool_set_prop' mangled-name='zpool_set_prop' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_set_prop'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-84' name='propname'/>
	<parameter type-id='type-id-84' name='propval'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_standard_error' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-91'/>
	<parameter type-id='type-id-8'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_name_to_prop' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-142'/>
	</function-decl>
	<function-decl name='zpool_prop_readonly' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-142'/>
	<return type-id='type-id-50'/>
	</function-decl>
	<function-decl name='zpool_prop_setonce' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-142'/>
	<return type-id='type-id-50'/>
	</function-decl>
	<function-decl name='zpool_prop_feature' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-50'/>
	</function-decl>
	<enum-decl name='spa_feature' id='type-id-328'>
	<underlying-type type-id='type-id-49'/>
	<enumerator name='SPA_FEATURE_NONE' value='-1'/>
	<enumerator name='SPA_FEATURE_ASYNC_DESTROY' value='0'/>
	<enumerator name='SPA_FEATURE_EMPTY_BPOBJ' value='1'/>
	<enumerator name='SPA_FEATURE_LZ4_COMPRESS' value='2'/>
	<enumerator name='SPA_FEATURE_MULTI_VDEV_CRASH_DUMP' value='3'/>
	<enumerator name='SPA_FEATURE_SPACEMAP_HISTOGRAM' value='4'/>
	<enumerator name='SPA_FEATURE_ENABLED_TXG' value='5'/>
	<enumerator name='SPA_FEATURE_HOLE_BIRTH' value='6'/>
	<enumerator name='SPA_FEATURE_EXTENSIBLE_DATASET' value='7'/>
	<enumerator name='SPA_FEATURE_EMBEDDED_DATA' value='8'/>
	<enumerator name='SPA_FEATURE_BOOKMARKS' value='9'/>
	<enumerator name='SPA_FEATURE_FS_SS_LIMIT' value='10'/>
	<enumerator name='SPA_FEATURE_LARGE_BLOCKS' value='11'/>
	<enumerator name='SPA_FEATURE_LARGE_DNODE' value='12'/>
	<enumerator name='SPA_FEATURE_SHA512' value='13'/>
	<enumerator name='SPA_FEATURE_SKEIN' value='14'/>
	<enumerator name='SPA_FEATURE_EDONR' value='15'/>
	<enumerator name='SPA_FEATURE_USEROBJ_ACCOUNTING' value='16'/>
	<enumerator name='SPA_FEATURE_ENCRYPTION' value='17'/>
	<enumerator name='SPA_FEATURE_PROJECT_QUOTA' value='18'/>
	<enumerator name='SPA_FEATURE_DEVICE_REMOVAL' value='19'/>
	<enumerator name='SPA_FEATURE_OBSOLETE_COUNTS' value='20'/>
	<enumerator name='SPA_FEATURE_POOL_CHECKPOINT' value='21'/>
	<enumerator name='SPA_FEATURE_SPACEMAP_V2' value='22'/>
	<enumerator name='SPA_FEATURE_ALLOCATION_CLASSES' value='23'/>
	<enumerator name='SPA_FEATURE_RESILVER_DEFER' value='24'/>
	<enumerator name='SPA_FEATURE_BOOKMARK_V2' value='25'/>
	<enumerator name='SPA_FEATURE_REDACTION_BOOKMARKS' value='26'/>
	<enumerator name='SPA_FEATURE_REDACTED_DATASETS' value='27'/>
	<enumerator name='SPA_FEATURE_BOOKMARK_WRITTEN' value='28'/>
	<enumerator name='SPA_FEATURE_LOG_SPACEMAP' value='29'/>
	<enumerator name='SPA_FEATURE_LIVELIST' value='30'/>
	<enumerator name='SPA_FEATURE_DEVICE_REBUILD' value='31'/>
	<enumerator name='SPA_FEATURE_ZSTD_COMPRESS' value='32'/>
	<enumerator name='SPA_FEATURE_DRAID' value='33'/>
	<enumerator name='SPA_FEATURES' value='34'/>
	</enum-decl>
	<pointer-type-def type-id='type-id-328' size-in-bits='64' id='type-id-329'/>
	<function-decl name='zfeature_lookup_name' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-329'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_open_canfail' mangled-name='zpool_open_canfail' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_open_canfail'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-84' name='pool'/>
	<return type-id='type-id-11'/>
	</function-decl>
	<function-decl name='zpool_close' mangled-name='zpool_close' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_close'>
	<parameter type-id='type-id-11' name='zhp'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='get_system_hostid' visibility='default' binding='global' size-in-bits='64'>
	<return type-id='type-id-35'/>
	</function-decl>
	<function-decl name='zpool_expand_proplist' mangled-name='zpool_expand_proplist' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_expand_proplist'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-259' name='plp'/>
	<parameter type-id='type-id-16' name='literal'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfeature_is_supported' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-50'/>
	</function-decl>
	<function-decl name='zpool_prop_get_feature' mangled-name='zpool_prop_get_feature' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prop_get_feature'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-84' name='propname'/>
	<parameter type-id='type-id-17' name='buf'/>
	<parameter type-id='type-id-28' name='len'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='pool_namecheck' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-213'/>
	<parameter type-id='type-id-17'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_refresh_stats' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-126'/>
	<parameter type-id='type-id-294'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_open' mangled-name='zpool_open' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_open'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-84' name='pool'/>
	<return type-id='type-id-11'/>
	</function-decl>
	<function-decl name='zpool_is_draid_spare' mangled-name='zpool_is_draid_spare' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_is_draid_spare'>
	<parameter type-id='type-id-84' name='name'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='zpool_create' mangled-name='zpool_create' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_create'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-84' name='pool'/>
	<parameter type-id='type-id-15' name='nvroot'/>
	<parameter type-id='type-id-15' name='props'/>
	<parameter type-id='type-id-15' name='fsprops'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='nvlist_add_uint8_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-73'/>
	<parameter type-id='type-id-5'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_destroy' mangled-name='zpool_destroy' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_destroy'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-84' name='log_str'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_checkpoint' mangled-name='zpool_checkpoint' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_checkpoint'>
	<parameter type-id='type-id-11' name='zhp'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='lzc_pool_checkpoint' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_discard_checkpoint' mangled-name='zpool_discard_checkpoint' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_discard_checkpoint'>
	<parameter type-id='type-id-11' name='zhp'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='lzc_pool_checkpoint_discard' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_add' mangled-name='zpool_add' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_add'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-15' name='nvroot'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_export' mangled-name='zpool_export' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_export'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-16' name='force'/>
	<parameter type-id='type-id-84' name='log_str'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_standard_error_fmt' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-91'/>
	<parameter type-id='type-id-8'/>
	<parameter type-id='type-id-84'/>
	<parameter is-variadic='yes'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_export_force' mangled-name='zpool_export_force' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_export_force'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-84' name='log_str'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_explain_recover' mangled-name='zpool_explain_recover' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_explain_recover'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-84' name='name'/>
	<parameter type-id='type-id-8' name='reason'/>
	<parameter type-id='type-id-15' name='config'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='zpool_import' mangled-name='zpool_import' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_import'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-15' name='config'/>
	<parameter type-id='type-id-84' name='newname'/>
	<parameter type-id='type-id-17' name='altroot'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_import_props' mangled-name='zpool_import_props' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_import_props'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-15' name='config'/>
	<parameter type-id='type-id-84' name='newname'/>
	<parameter type-id='type-id-15' name='props'/>
	<parameter type-id='type-id-8' name='flags'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<class-decl name='zpool_load_policy' size-in-bits='256' is-struct='yes' visibility='default' id='type-id-330'>
	<data-member access='public' layout-offset-in-bits='0'>
	<var-decl name='zlp_rewind' type-id='type-id-38' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	<var-decl name='zlp_maxmeta' type-id='type-id-22' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	<var-decl name='zlp_maxdata' type-id='type-id-22' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='192'>
	<var-decl name='zlp_txg' type-id='type-id-22' visibility='default'/>
	</data-member>
	</class-decl>
	<pointer-type-def type-id='type-id-330' size-in-bits='64' id='type-id-331'/>
	<function-decl name='zpool_get_load_policy' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-331'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='zpool_print_unsup_feat' mangled-name='zpool_print_unsup_feat' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_print_unsup_feat'>
	<parameter type-id='type-id-15' name='config'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='fnvlist_lookup_uint64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-35'/>
	</function-decl>
	<function-decl name='zpool_vdev_name' mangled-name='zpool_vdev_name' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_vdev_name'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-15' name='nv'/>
	<parameter type-id='type-id-8' name='name_flags'/>
	<return type-id='type-id-17'/>
	</function-decl>
	<enum-decl name='pool_initialize_func' id='type-id-332'>
	<underlying-type type-id='type-id-49'/>
	<enumerator name='POOL_INITIALIZE_START' value='0'/>
	<enumerator name='POOL_INITIALIZE_CANCEL' value='1'/>
	<enumerator name='POOL_INITIALIZE_SUSPEND' value='2'/>
	<enumerator name='POOL_INITIALIZE_FUNCS' value='3'/>
	</enum-decl>
	<typedef-decl name='pool_initialize_func_t' type-id='type-id-332' id='type-id-333'/>
	<function-decl name='zpool_initialize' mangled-name='zpool_initialize' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_initialize'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-333' name='cmd_type'/>
	<parameter type-id='type-id-15' name='vds'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='lzc_initialize' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-332'/>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-107'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='fnvpair_value_int64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-133'/>
	<return type-id='type-id-54'/>
	</function-decl>
	<enum-decl name='__anonymous_enum__' is-anonymous='yes' id='type-id-334'>
	<underlying-type type-id='type-id-49'/>
	<enumerator name='ZPOOL_WAIT_CKPT_DISCARD' value='0'/>
	<enumerator name='ZPOOL_WAIT_FREE' value='1'/>
	<enumerator name='ZPOOL_WAIT_INITIALIZE' value='2'/>
	<enumerator name='ZPOOL_WAIT_REPLACE' value='3'/>
	<enumerator name='ZPOOL_WAIT_REMOVE' value='4'/>
	<enumerator name='ZPOOL_WAIT_RESILVER' value='5'/>
	<enumerator name='ZPOOL_WAIT_SCRUB' value='6'/>
	<enumerator name='ZPOOL_WAIT_TRIM' value='7'/>
	<enumerator name='ZPOOL_WAIT_NUM_ACTIVITIES' value='8'/>
	</enum-decl>
	<function-decl name='lzc_wait_tag' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-334'/>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-294'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_initialize_wait' mangled-name='zpool_initialize_wait' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_initialize_wait'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-333' name='cmd_type'/>
	<parameter type-id='type-id-15' name='vds'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<enum-decl name='pool_trim_func' id='type-id-335'>
	<underlying-type type-id='type-id-49'/>
	<enumerator name='POOL_TRIM_START' value='0'/>
	<enumerator name='POOL_TRIM_CANCEL' value='1'/>
	<enumerator name='POOL_TRIM_SUSPEND' value='2'/>
	<enumerator name='POOL_TRIM_FUNCS' value='3'/>
	</enum-decl>
	<typedef-decl name='pool_trim_func_t' type-id='type-id-335' id='type-id-336'/>
	<class-decl name='trimflags' size-in-bits='192' is-struct='yes' visibility='default' id='type-id-337'>
	<data-member access='public' layout-offset-in-bits='0'>
	<var-decl name='fullpool' type-id='type-id-16' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='32'>
	<var-decl name='secure' type-id='type-id-16' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	<var-decl name='wait' type-id='type-id-16' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	<var-decl name='rate' type-id='type-id-22' visibility='default'/>
	</data-member>
	</class-decl>
	<typedef-decl name='trimflags_t' type-id='type-id-337' id='type-id-338'/>
	<pointer-type-def type-id='type-id-338' size-in-bits='64' id='type-id-339'/>
	<function-decl name='zpool_trim' mangled-name='zpool_trim' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_trim'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-336' name='cmd_type'/>
	<parameter type-id='type-id-15' name='vds'/>
	<parameter type-id='type-id-339' name='trim_flags'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='lzc_trim' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-335'/>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-50'/>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-107'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='fnvlist_add_int64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-54'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='zpool_find_vdev' mangled-name='zpool_find_vdev' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_find_vdev'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-84' name='path'/>
	<parameter type-id='type-id-106' name='avail_spare'/>
	<parameter type-id='type-id-106' name='l2cache'/>
	<parameter type-id='type-id-106' name='log'/>
	<return type-id='type-id-15'/>
	</function-decl>
	<enum-decl name='pool_scan_func' id='type-id-340'>
	<underlying-type type-id='type-id-49'/>
	<enumerator name='POOL_SCAN_NONE' value='0'/>
	<enumerator name='POOL_SCAN_SCRUB' value='1'/>
	<enumerator name='POOL_SCAN_RESILVER' value='2'/>
	<enumerator name='POOL_SCAN_FUNCS' value='3'/>
	</enum-decl>
	<typedef-decl name='pool_scan_func_t' type-id='type-id-340' id='type-id-341'/>
	<enum-decl name='pool_scrub_cmd' id='type-id-342'>
	<underlying-type type-id='type-id-49'/>
	<enumerator name='POOL_SCRUB_NORMAL' value='0'/>
	<enumerator name='POOL_SCRUB_PAUSE' value='1'/>
	<enumerator name='POOL_SCRUB_FLAGS_END' value='2'/>
	</enum-decl>
	<typedef-decl name='pool_scrub_cmd_t' type-id='type-id-342' id='type-id-343'/>
	<function-decl name='zpool_scan' mangled-name='zpool_scan' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_scan'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-341' name='func'/>
	<parameter type-id='type-id-343' name='cmd'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_find_vdev_by_physpath' mangled-name='zpool_find_vdev_by_physpath' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_find_vdev_by_physpath'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-84' name='ppath'/>
	<parameter type-id='type-id-106' name='avail_spare'/>
	<parameter type-id='type-id-106' name='l2cache'/>
	<parameter type-id='type-id-106' name='log'/>
	<return type-id='type-id-15'/>
	</function-decl>
	<function-decl name='zfs_strcmp_pathname' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-8'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_get_physpath' mangled-name='zpool_get_physpath' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_get_physpath'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-17' name='physpath'/>
	<parameter type-id='type-id-28' name='phypath_size'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_vdev_path_to_guid' mangled-name='zpool_vdev_path_to_guid' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_vdev_path_to_guid'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-84' name='path'/>
	<return type-id='type-id-22'/>
	</function-decl>
	<pointer-type-def type-id='type-id-322' size-in-bits='64' id='type-id-344'/>
	<function-decl name='zpool_vdev_online' mangled-name='zpool_vdev_online' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_vdev_online'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-84' name='path'/>
	<parameter type-id='type-id-8' name='flags'/>
	<parameter type-id='type-id-344' name='newstate'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_resolve_shortname' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-17'/>
	<parameter type-id='type-id-35'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_relabel_disk' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-91'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_vdev_offline' mangled-name='zpool_vdev_offline' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_vdev_offline'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-84' name='path'/>
	<parameter type-id='type-id-16' name='istmp'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_vdev_fault' mangled-name='zpool_vdev_fault' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_vdev_fault'>
	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-22' name='guid'/>
	<parameter type-id='type-id-324' name='aux'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_vdev_degrade' mangled-name='zpool_vdev_degrade' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_vdev_degrade'>
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	<parameter type-id='type-id-22' name='guid'/>
	<parameter type-id='type-id-324' name='aux'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_vdev_attach' mangled-name='zpool_vdev_attach' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_vdev_attach'>
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	<parameter type-id='type-id-84' name='new_disk'/>
	<parameter type-id='type-id-15' name='nvroot'/>
	<parameter type-id='type-id-8' name='replacing'/>
	<parameter type-id='type-id-16' name='rebuild'/>
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	<function-decl name='zfeature_lookup_guid' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-329'/>
	<return type-id='type-id-8'/>
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	<parameter type-id='type-id-17'/>
	<return type-id='type-id-17'/>
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	<function-decl name='zfs_strip_path' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-17'/>
	<return type-id='type-id-17'/>
	</function-decl>
	<function-decl name='zfs_strip_partition' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-17'/>
	<return type-id='type-id-17'/>
	</function-decl>
	<function-decl name='zpool_vdev_detach' mangled-name='zpool_vdev_detach' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_vdev_detach'>
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	<parameter type-id='type-id-84' name='path'/>
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	<data-member access='public' layout-offset-in-bits='30'>
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	<data-member access='public' layout-offset-in-bits='32'>
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	<parameter type-id='type-id-17' name='newname'/>
	<parameter type-id='type-id-105' name='newroot'/>
	<parameter type-id='type-id-15' name='props'/>
	<parameter type-id='type-id-346' name='flags'/>
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	<function-decl name='nvlist_add_nvlist_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-107'/>
	<parameter type-id='type-id-5'/>
	<return type-id='type-id-8'/>
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	<parameter type-id='type-id-11' name='zhp'/>
	<parameter type-id='type-id-84' name='path'/>
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	<parameter type-id='type-id-248' name='sizep'/>
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	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-107'/>
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	<parameter type-id='type-id-22' name='new_version'/>
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	<function-decl name='zfs_save_arguments' mangled-name='zfs_save_arguments' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_save_arguments'>
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	<parameter type-id='type-id-88' name='argv'/>
	<parameter type-id='type-id-17' name='string'/>
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	<function-decl name='zpool_log_history' mangled-name='zpool_log_history' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_log_history'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-84' name='message'/>
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	<function-decl name='zpool_get_history' mangled-name='zpool_get_history' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_get_history'>
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	<parameter type-id='type-id-105' name='nvhisp'/>
	<parameter type-id='type-id-248' name='off'/>
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	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-102'/>
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	<data-member access='public' layout-offset-in-bits='480'>
	<var-decl name='holds' type-id='type-id-16' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='512'>
	<var-decl name='saved' type-id='type-id-16' visibility='default'/>
	</data-member>
	</class-decl>
	<typedef-decl name='sendflags_t' type-id='type-id-352' id='type-id-353'/>
	<pointer-type-def type-id='type-id-353' size-in-bits='64' id='type-id-354'/>
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	<pointer-type-def type-id='type-id-356' size-in-bits='64' id='type-id-357'/>
	<function-decl name='zfs_send' mangled-name='zfs_send' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_send'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-84' name='fromsnap'/>
	<parameter type-id='type-id-84' name='tosnap'/>
	<parameter type-id='type-id-354' name='flags'/>
	<parameter type-id='type-id-8' name='outfd'/>
	<parameter type-id='type-id-357' name='filter_func'/>
	<parameter type-id='type-id-7' name='cb_arg'/>
	<parameter type-id='type-id-105' name='debugnvp'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_send_progress' mangled-name='zfs_send_progress' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_send_progress'>
	<parameter type-id='type-id-135' name='zhp'/>
	<parameter type-id='type-id-8' name='fd'/>
	<parameter type-id='type-id-248' name='bytes_written'/>
	<parameter type-id='type-id-248' name='blocks_visited'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_send_resume_token_to_nvlist' mangled-name='zfs_send_resume_token_to_nvlist' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_send_resume_token_to_nvlist'>
	<parameter type-id='type-id-10' name='hdl'/>
	<parameter type-id='type-id-84' name='token'/>
	<return type-id='type-id-15'/>
	</function-decl>
	<class-decl name='zio_cksum' size-in-bits='256' is-struct='yes' visibility='default' id='type-id-358'>
	<data-member access='public' layout-offset-in-bits='0'>
	<var-decl name='zc_word' type-id='type-id-359' visibility='default'/>
	</data-member>
	</class-decl>

	<array-type-def dimensions='1' type-id='type-id-22' size-in-bits='256' id='type-id-359'>
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	</array-type-def>
	<pointer-type-def type-id='type-id-358' size-in-bits='64' id='type-id-360'/>
	<function-decl name='fletcher_4_native_varsize' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-7'/>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-360'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='uncompress' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-73'/>
	<parameter type-id='type-id-102'/>
	<parameter type-id='type-id-165'/>
	<parameter type-id='type-id-35'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_send_resume' mangled-name='zfs_send_resume' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_send_resume'>
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	<parameter type-id='type-id-354' name='flags'/>
	<parameter type-id='type-id-8' name='outfd'/>
	<parameter type-id='type-id-84' name='resume_token'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='nvlist_print' visibility='default' binding='global' size-in-bits='64'>
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	<parameter type-id='type-id-104'/>
	<return type-id='type-id-6'/>
	</function-decl>
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	<underlying-type type-id='type-id-49'/>
	<enumerator name='LZC_SEND_FLAG_EMBED_DATA' value='1'/>
	<enumerator name='LZC_SEND_FLAG_LARGE_BLOCK' value='2'/>
	<enumerator name='LZC_SEND_FLAG_COMPRESS' value='4'/>
	<enumerator name='LZC_SEND_FLAG_RAW' value='8'/>
	<enumerator name='LZC_SEND_FLAG_SAVED' value='16'/>
	</enum-decl>
	<function-decl name='lzc_send_resume_redacted' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-8'/>
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	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_send_saved' mangled-name='zfs_send_saved' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_send_saved'>
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	<parameter type-id='type-id-354' name='flags'/>
	<parameter type-id='type-id-8' name='outfd'/>
	<parameter type-id='type-id-84' name='resume_token'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_get_pool_handle' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-97'/>
	<return type-id='type-id-126'/>
	</function-decl>
	<function-decl name='zfs_hold_nvl' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-82'/>
	<parameter type-id='type-id-8'/>
	<parameter type-id='type-id-104'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='fletcher_4_incremental_native' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-7'/>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-7'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='write' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-8'/>
	<parameter type-id='type-id-7'/>
	<parameter type-id='type-id-35'/>
	<return type-id='type-id-54'/>
	</function-decl>
	<function-decl name='fnvlist_size' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<return type-id='type-id-35'/>
	</function-decl>
	<function-decl name='nvlist_lookup_boolean' visibility='default' binding='global' size-in-bits='64'>
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	<parameter type-id='type-id-84'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_send_one' mangled-name='zfs_send_one' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_send_one'>
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	<parameter type-id='type-id-84' name='from'/>
	<parameter type-id='type-id-8' name='fd'/>
	<parameter type-id='type-id-354' name='flags'/>
	<parameter type-id='type-id-84' name='redactbook'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='lzc_send_redacted' visibility='default' binding='global' size-in-bits='64'>
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	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-8'/>
	<parameter type-id='type-id-361'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='lzc_send_space_resume_redacted' visibility='default' binding='global' size-in-bits='64'>
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	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-361'/>
	<parameter type-id='type-id-35'/>
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	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-8'/>
	<parameter type-id='type-id-102'/>
	<return type-id='type-id-8'/>
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	<parameter type-id='type-id-5'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<function-decl name='time' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-242'/>
	<return type-id='type-id-54'/>
	</function-decl>
	<function-decl name='localtime' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-238'/>
	<return type-id='type-id-236'/>
	</function-decl>
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	</data-member>
	<data-member access='public' layout-offset-in-bits='32'>
	<var-decl name='isprefix' type-id='type-id-16' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	<var-decl name='istail' type-id='type-id-16' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='96'>
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	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
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	<data-member access='public' layout-offset-in-bits='160'>
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	</data-member>
	<data-member access='public' layout-offset-in-bits='192'>
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	<data-member access='public' layout-offset-in-bits='224'>
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	</data-member>
	<data-member access='public' layout-offset-in-bits='256'>
	<var-decl name='nomount' type-id='type-id-16' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='288'>
	<var-decl name='holds' type-id='type-id-16' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='320'>
	<var-decl name='skipholds' type-id='type-id-16' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='352'>
	<var-decl name='domount' type-id='type-id-16' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='384'>
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	<pointer-type-def type-id='type-id-25' size-in-bits='64' id='type-id-365'/>
	<function-decl name='zfs_receive' mangled-name='zfs_receive' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_receive'>
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	<parameter type-id='type-id-84' name='tosnap'/>
	<parameter type-id='type-id-15' name='props'/>
	<parameter type-id='type-id-364' name='flags'/>
	<parameter type-id='type-id-8' name='infd'/>
	<parameter type-id='type-id-365' name='stream_avl'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='libzfs_set_pipe_max' visibility='default' binding='global' size-in-bits='64'>
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	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='perror' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='fletcher_4_incremental_byteswap' visibility='default' binding='global' size-in-bits='64'>
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	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-7'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='fnvlist_lookup_uint64_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-244'/>
	<return type-id='type-id-102'/>
	</function-decl>
	<function-decl name='fnvlist_lookup_boolean_value' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-104'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-50'/>
	</function-decl>
	<function-decl name='zfs_iter_snapshots_sorted' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-82'/>
	<parameter type-id='type-id-95'/>
	<parameter type-id='type-id-7'/>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-35'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_get_recvd_props' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-82'/>
	<return type-id='type-id-104'/>
	</function-decl>
	<function-decl name='lzc_send_space' visibility='default' binding='global' size-in-bits='64'>
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	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-361'/>
	<parameter type-id='type-id-102'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='fnvlist_merge' visibility='default' binding='global' size-in-bits='64'>
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	<parameter type-id='type-id-104'/>
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	<data-member access='public' layout-offset-in-bits='32'>
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	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
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	<enumerator name='DRR_END' value='5'/>
	<enumerator name='DRR_WRITE_BYREF' value='6'/>
	<enumerator name='DRR_SPILL' value='7'/>
	<enumerator name='DRR_WRITE_EMBEDDED' value='8'/>
	<enumerator name='DRR_OBJECT_RANGE' value='9'/>
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	<enumerator name='DRR_NUMTYPES' value='11'/>
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	<data-member access='public' layout-offset-in-bits='320'>
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	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='fletcher_2_incremental_native' mangled-name='fletcher_2_incremental_native' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fletcher_2_incremental_native'>
	<parameter type-id='type-id-7' name='buf'/>
	<parameter type-id='type-id-28' name='size'/>
	<parameter type-id='type-id-7' name='data'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='fletcher_2_native' mangled-name='fletcher_2_native' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fletcher_2_native'>
	<parameter type-id='type-id-7' name='buf'/>
	<parameter type-id='type-id-22' name='size'/>
	<parameter type-id='type-id-7' name='ctx_template'/>
	<parameter type-id='type-id-485' name='zcp'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='fletcher_2_incremental_byteswap' mangled-name='fletcher_2_incremental_byteswap' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fletcher_2_incremental_byteswap'>
	<parameter type-id='type-id-7' name='buf'/>
	<parameter type-id='type-id-28' name='size'/>
	<parameter type-id='type-id-7' name='data'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='fletcher_2_byteswap' mangled-name='fletcher_2_byteswap' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fletcher_2_byteswap'>
	<parameter type-id='type-id-7' name='buf'/>
	<parameter type-id='type-id-22' name='size'/>
	<parameter type-id='type-id-7' name='ctx_template'/>
	<parameter type-id='type-id-485' name='zcp'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='fletcher_4_impl_set' mangled-name='fletcher_4_impl_set' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fletcher_4_impl_set'>
	<parameter type-id='type-id-84' name='val'/>
	<return type-id='type-id-8'/>
	</function-decl>
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	<pointer-type-def type-id='type-id-511' size-in-bits='64' id='type-id-512'/>
	<function-decl name='atomic_swap_32' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-512'/>
	<parameter type-id='type-id-5'/>
	<return type-id='type-id-5'/>
	</function-decl>
	<function-decl name='membar_producer' visibility='default' binding='global' size-in-bits='64'>
	<return type-id='type-id-6'/>
	</function-decl>
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	<parameter type-id='type-id-7' name='buf'/>
	<parameter type-id='type-id-22' name='size'/>
	<parameter type-id='type-id-7' name='ctx_template'/>
	<parameter type-id='type-id-485' name='zcp'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='fletcher_4_native_varsize' mangled-name='fletcher_4_native_varsize' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fletcher_4_native_varsize'>
	<parameter type-id='type-id-7' name='buf'/>
	<parameter type-id='type-id-22' name='size'/>
	<parameter type-id='type-id-485' name='zcp'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='fletcher_4_byteswap' mangled-name='fletcher_4_byteswap' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fletcher_4_byteswap'>
	<parameter type-id='type-id-7' name='buf'/>
	<parameter type-id='type-id-22' name='size'/>
	<parameter type-id='type-id-7' name='ctx_template'/>
	<parameter type-id='type-id-485' name='zcp'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='fletcher_4_incremental_native' mangled-name='fletcher_4_incremental_native' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fletcher_4_incremental_native'>
	<parameter type-id='type-id-7' name='buf'/>
	<parameter type-id='type-id-28' name='size'/>
	<parameter type-id='type-id-7' name='data'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='fletcher_4_incremental_byteswap' mangled-name='fletcher_4_incremental_byteswap' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fletcher_4_incremental_byteswap'>
	<parameter type-id='type-id-7' name='buf'/>
	<parameter type-id='type-id-28' name='size'/>
	<parameter type-id='type-id-7' name='data'/>
	<return type-id='type-id-8'/>
	</function-decl>
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	<parameter type-id='type-id-7'/>
	<parameter type-id='type-id-28'/>
	<parameter type-id='type-id-7'/>
	<return type-id='type-id-8'/>
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	<function-type size-in-bits='64' id='type-id-504'>
	<parameter type-id='type-id-503'/>
	<return type-id='type-id-6'/>
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	<class-decl name='fletcher_4_func' size-in-bits='512' is-struct='yes' visibility='default' id='type-id-513'>
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	<data-member access='public' layout-offset-in-bits='448'>
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	<var-decl name='fletcher_4_avx512bw_ops' type-id='type-id-526' mangled-name='fletcher_4_avx512bw_ops' visibility='default' elf-symbol-id='fletcher_4_avx512bw_ops'/>
	<function-type size-in-bits='64' id='type-id-524'>
	<return type-id='type-id-16'/>
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	<return type-id='type-id-6'/>
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	<parameter type-id='type-id-22'/>
	<return type-id='type-id-6'/>
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	<parameter type-id='type-id-485'/>
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	<return type-id='type-id-8'/>
	</function-decl>
	<typedef-decl name='namecheck_err_t' type-id='type-id-212' id='type-id-527'/>
	<pointer-type-def type-id='type-id-527' size-in-bits='64' id='type-id-528'/>
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	<parameter type-id='type-id-528' name='why'/>
	<parameter type-id='type-id-17' name='what'/>
	<return type-id='type-id-8'/>
	</function-decl>
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	<parameter type-id='type-id-17' name='what'/>
	<return type-id='type-id-8'/>
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	<parameter type-id='type-id-528' name='why'/>
	<parameter type-id='type-id-17' name='what'/>
	<return type-id='type-id-8'/>
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	<function-decl name='dataset_namecheck' mangled-name='dataset_namecheck' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dataset_namecheck'>
	<parameter type-id='type-id-84' name='path'/>
	<parameter type-id='type-id-528' name='why'/>
	<parameter type-id='type-id-17' name='what'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='bookmark_namecheck' mangled-name='bookmark_namecheck' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bookmark_namecheck'>
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	<parameter type-id='type-id-528' name='why'/>
	<parameter type-id='type-id-17' name='what'/>
	<return type-id='type-id-8'/>
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	<parameter type-id='type-id-84' name='path'/>
	<parameter type-id='type-id-528' name='why'/>
	<parameter type-id='type-id-17' name='what'/>
	<return type-id='type-id-8'/>
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	<function-decl name='mountpoint_namecheck' mangled-name='mountpoint_namecheck' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mountpoint_namecheck'>
	<parameter type-id='type-id-84' name='path'/>
	<parameter type-id='type-id-528' name='why'/>
	<return type-id='type-id-8'/>
	</function-decl>
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	<parameter type-id='type-id-84' name='path'/>
	<parameter type-id='type-id-528' name='why'/>
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	<return type-id='type-id-8'/>
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	<return type-id='type-id-229'/>
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	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='zfs_prop_userquota' mangled-name='zfs_prop_userquota' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_userquota'>
	<parameter type-id='type-id-84' name='name'/>
	<return type-id='type-id-16'/>
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	<parameter type-id='type-id-248' name='index'/>
	<return type-id='type-id-8'/>
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	<parameter type-id='type-id-22' name='index'/>
	<parameter type-id='type-id-241' name='string'/>
	<return type-id='type-id-8'/>
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	<parameter type-id='type-id-241'/>
	<parameter type-id='type-id-76'/>
	<return type-id='type-id-8'/>
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	<parameter type-id='type-id-22' name='seed'/>
	<return type-id='type-id-22'/>
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	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-76'/>
	<return type-id='type-id-35'/>
	</function-decl>
	<function-decl name='zfs_prop_valid_for_type' mangled-name='zfs_prop_valid_for_type' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_valid_for_type'>
	<parameter type-id='type-id-8' name='prop'/>
	<parameter type-id='type-id-13' name='types'/>
	<parameter type-id='type-id-16' name='headcheck'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='zfs_prop_get_type' mangled-name='zfs_prop_get_type' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_get_type'>
	<parameter type-id='type-id-229' name='prop'/>
	<return type-id='type-id-409'/>
	</function-decl>
	<function-decl name='zfs_prop_readonly' mangled-name='zfs_prop_readonly' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_readonly'>
	<parameter type-id='type-id-229' name='prop'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='zfs_prop_visible' mangled-name='zfs_prop_visible' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_visible'>
	<parameter type-id='type-id-229' name='prop'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='zfs_prop_setonce' mangled-name='zfs_prop_setonce' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_setonce'>
	<parameter type-id='type-id-229' name='prop'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='zfs_prop_default_string' mangled-name='zfs_prop_default_string' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_default_string'>
	<parameter type-id='type-id-229' name='prop'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='zfs_prop_default_numeric' mangled-name='zfs_prop_default_numeric' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_default_numeric'>
	<parameter type-id='type-id-229' name='prop'/>
	<return type-id='type-id-22'/>
	</function-decl>
	<function-decl name='zfs_prop_to_name' mangled-name='zfs_prop_to_name' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_to_name'>
	<parameter type-id='type-id-229' name='prop'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='zfs_prop_inheritable' mangled-name='zfs_prop_inheritable' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_inheritable'>
	<parameter type-id='type-id-229' name='prop'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='zfs_prop_encryption_key_param' mangled-name='zfs_prop_encryption_key_param' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_encryption_key_param'>
	<parameter type-id='type-id-229' name='prop'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='zfs_prop_valid_keylocation' mangled-name='zfs_prop_valid_keylocation' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_valid_keylocation'>
	<parameter type-id='type-id-84' name='str'/>
	<parameter type-id='type-id-16' name='encrypted'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='zfs_prop_values' mangled-name='zfs_prop_values' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_values'>
	<parameter type-id='type-id-229' name='prop'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='zfs_prop_is_string' mangled-name='zfs_prop_is_string' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_is_string'>
	<parameter type-id='type-id-229' name='prop'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zfs_prop_column_name' mangled-name='zfs_prop_column_name' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_column_name'>
	<parameter type-id='type-id-229' name='prop'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='zfs_prop_align_right' mangled-name='zfs_prop_align_right' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_align_right'>
	<parameter type-id='type-id-229' name='prop'/>
	<return type-id='type-id-16'/>
	</function-decl>
	</abi-instr>
	<abi-instr version='1.0' address-size='64' path='../../module/zcommon/zpool_prop.c' comp-dir-path='/home/nabijaczleweli/store/code/zfs/lib/libzfs' language='LANG_C99'>
	<function-decl name='zpool_prop_feature' mangled-name='zpool_prop_feature' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prop_feature'>
	<parameter type-id='type-id-84' name='name'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='zpool_prop_unsupported' mangled-name='zpool_prop_unsupported' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prop_unsupported'>
	<parameter type-id='type-id-84' name='name'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='zpool_prop_get_table' mangled-name='zpool_prop_get_table' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prop_get_table'>
	<return type-id='type-id-530'/>
	</function-decl>
	<function-decl name='zpool_name_to_prop' mangled-name='zpool_name_to_prop' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_name_to_prop'>
	<parameter type-id='type-id-84' name='propname'/>
	<return type-id='type-id-320'/>
	</function-decl>
	<function-decl name='zpool_prop_to_name' mangled-name='zpool_prop_to_name' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prop_to_name'>
	<parameter type-id='type-id-320' name='prop'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='zpool_prop_get_type' mangled-name='zpool_prop_get_type' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prop_get_type'>
	<parameter type-id='type-id-320' name='prop'/>
	<return type-id='type-id-409'/>
	</function-decl>
	<function-decl name='zpool_prop_readonly' mangled-name='zpool_prop_readonly' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prop_readonly'>
	<parameter type-id='type-id-320' name='prop'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='zpool_prop_setonce' mangled-name='zpool_prop_setonce' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prop_setonce'>
	<parameter type-id='type-id-320' name='prop'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='zpool_prop_default_string' mangled-name='zpool_prop_default_string' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prop_default_string'>
	<parameter type-id='type-id-320' name='prop'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='zpool_prop_default_numeric' mangled-name='zpool_prop_default_numeric' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prop_default_numeric'>
	<parameter type-id='type-id-320' name='prop'/>
	<return type-id='type-id-22'/>
	</function-decl>
	<function-decl name='zpool_prop_string_to_index' mangled-name='zpool_prop_string_to_index' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prop_string_to_index'>
	<parameter type-id='type-id-320' name='prop'/>
	<parameter type-id='type-id-84' name='string'/>
	<parameter type-id='type-id-248' name='index'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_prop_index_to_string' mangled-name='zpool_prop_index_to_string' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prop_index_to_string'>
	<parameter type-id='type-id-320' name='prop'/>
	<parameter type-id='type-id-22' name='index'/>
	<parameter type-id='type-id-241' name='string'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zpool_prop_random_value' mangled-name='zpool_prop_random_value' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prop_random_value'>
	<parameter type-id='type-id-320' name='prop'/>
	<parameter type-id='type-id-22' name='seed'/>
	<return type-id='type-id-22'/>
	</function-decl>
	<function-decl name='zpool_prop_values' mangled-name='zpool_prop_values' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prop_values'>
	<parameter type-id='type-id-320' name='prop'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='zpool_prop_column_name' mangled-name='zpool_prop_column_name' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prop_column_name'>
	<parameter type-id='type-id-320' name='prop'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='zpool_prop_align_right' mangled-name='zpool_prop_align_right' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prop_align_right'>
	<parameter type-id='type-id-320' name='prop'/>
	<return type-id='type-id-16'/>
	</function-decl>
	</abi-instr>
	<abi-instr version='1.0' address-size='64' path='../../module/zcommon/zprop_common.c' comp-dir-path='/home/nabijaczleweli/store/code/zfs/lib/libzfs' language='LANG_C99'>
	<function-decl name='zprop_register_impl' mangled-name='zprop_register_impl' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zprop_register_impl'>
	<parameter type-id='type-id-8' name='prop'/>
	<parameter type-id='type-id-84' name='name'/>
	<parameter type-id='type-id-409' name='type'/>
	<parameter type-id='type-id-22' name='numdefault'/>
	<parameter type-id='type-id-84' name='strdefault'/>
	<parameter type-id='type-id-410' name='attr'/>
	<parameter type-id='type-id-8' name='objset_types'/>
	<parameter type-id='type-id-84' name='values'/>
	<parameter type-id='type-id-84' name='colname'/>
	<parameter type-id='type-id-16' name='rightalign'/>
	<parameter type-id='type-id-16' name='visible'/>
	<parameter type-id='type-id-411' name='idx_tbl'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='zfs_mod_supported' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-50'/>
	</function-decl>
	<function-decl name='zprop_register_string' mangled-name='zprop_register_string' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zprop_register_string'>
	<parameter type-id='type-id-8' name='prop'/>
	<parameter type-id='type-id-84' name='name'/>
	<parameter type-id='type-id-84' name='def'/>
	<parameter type-id='type-id-410' name='attr'/>
	<parameter type-id='type-id-8' name='objset_types'/>
	<parameter type-id='type-id-84' name='values'/>
	<parameter type-id='type-id-84' name='colname'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='zprop_register_number' mangled-name='zprop_register_number' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zprop_register_number'>
	<parameter type-id='type-id-8' name='prop'/>
	<parameter type-id='type-id-84' name='name'/>
	<parameter type-id='type-id-22' name='def'/>
	<parameter type-id='type-id-410' name='attr'/>
	<parameter type-id='type-id-8' name='objset_types'/>
	<parameter type-id='type-id-84' name='values'/>
	<parameter type-id='type-id-84' name='colname'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='zprop_register_index' mangled-name='zprop_register_index' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zprop_register_index'>
	<parameter type-id='type-id-8' name='prop'/>
	<parameter type-id='type-id-84' name='name'/>
	<parameter type-id='type-id-22' name='def'/>
	<parameter type-id='type-id-410' name='attr'/>
	<parameter type-id='type-id-8' name='objset_types'/>
	<parameter type-id='type-id-84' name='values'/>
	<parameter type-id='type-id-84' name='colname'/>
	<parameter type-id='type-id-411' name='idx_tbl'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='zprop_register_hidden' mangled-name='zprop_register_hidden' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zprop_register_hidden'>
	<parameter type-id='type-id-8' name='prop'/>
	<parameter type-id='type-id-84' name='name'/>
	<parameter type-id='type-id-409' name='type'/>
	<parameter type-id='type-id-410' name='attr'/>
	<parameter type-id='type-id-8' name='objset_types'/>
	<parameter type-id='type-id-84' name='colname'/>
	<return type-id='type-id-6'/>
	</function-decl>
	<function-decl name='zprop_iter_common' mangled-name='zprop_iter_common' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zprop_iter_common'>
	<parameter type-id='type-id-439' name='func'/>
	<parameter type-id='type-id-7' name='cb'/>
	<parameter type-id='type-id-16' name='show_all'/>
	<parameter type-id='type-id-16' name='ordered'/>
	<parameter type-id='type-id-13' name='type'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zprop_name_to_prop' mangled-name='zprop_name_to_prop' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zprop_name_to_prop'>
	<parameter type-id='type-id-84' name='propname'/>
	<parameter type-id='type-id-13' name='type'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zprop_string_to_index' mangled-name='zprop_string_to_index' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zprop_string_to_index'>
	<parameter type-id='type-id-8' name='prop'/>
	<parameter type-id='type-id-84' name='string'/>
	<parameter type-id='type-id-248' name='index'/>
	<parameter type-id='type-id-13' name='type'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zprop_index_to_string' mangled-name='zprop_index_to_string' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zprop_index_to_string'>
	<parameter type-id='type-id-8' name='prop'/>
	<parameter type-id='type-id-22' name='index'/>
	<parameter type-id='type-id-241' name='string'/>
	<parameter type-id='type-id-13' name='type'/>
	<return type-id='type-id-8'/>
	</function-decl>
	<function-decl name='zprop_random_value' mangled-name='zprop_random_value' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zprop_random_value'>
	<parameter type-id='type-id-8' name='prop'/>
	<parameter type-id='type-id-22' name='seed'/>
	<parameter type-id='type-id-13' name='type'/>
	<return type-id='type-id-22'/>
	</function-decl>
	<function-decl name='zprop_values' mangled-name='zprop_values' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zprop_values'>
	<parameter type-id='type-id-8' name='prop'/>
	<parameter type-id='type-id-13' name='type'/>
	<return type-id='type-id-84'/>
	</function-decl>
	<function-decl name='zprop_valid_for_type' mangled-name='zprop_valid_for_type' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zprop_valid_for_type'>
	<parameter type-id='type-id-8' name='prop'/>
	<parameter type-id='type-id-13' name='type'/>
	<parameter type-id='type-id-16' name='headcheck'/>
	<return type-id='type-id-16'/>
	</function-decl>
	<function-decl name='zprop_width' mangled-name='zprop_width' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zprop_width'>
	<parameter type-id='type-id-8' name='prop'/>
	<parameter type-id='type-id-106' name='fixed'/>
	<parameter type-id='type-id-13' name='type'/>
	<return type-id='type-id-28'/>
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	<abi-instr version='1.0' address-size='64' path='libshare.c' comp-dir-path='/home/nabijaczleweli/store/code/zfs/lib/libshare' language='LANG_C99'>
	+ <function-decl name='libshare_nfs_init' visibility='default' binding='global' size-in-bits='64'>
	+ <return type-id='type-id-6'/>
	+ </function-decl>
	+ <function-decl name='libshare_smb_init' visibility='default' binding='global' size-in-bits='64'>
	+ <return type-id='type-id-6'/>
	+ </function-decl>
	+ <function-decl name='sa_is_shared' mangled-name='sa_is_shared' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sa_is_shared'>
	+ <parameter type-id='type-id-84' name='mountpoint'/>
	+ <parameter type-id='type-id-17' name='protocol'/>
	+ <return type-id='type-id-16'/>
	+ </function-decl>
	+ </abi-instr>
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	+ <function-decl name='mkdir' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-84'/>
	+ <parameter type-id='type-id-5'/>
	+ <return type-id='type-id-8'/>
	+ </function-decl>
	+ <function-decl name='mkostemp' mangled-name='mkostemp64' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-17'/>
	+ <parameter type-id='type-id-8'/>
	+ <return type-id='type-id-8'/>
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	+ <function-decl name='flock' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-8'/>
	+ <parameter type-id='type-id-8'/>
	+ <return type-id='type-id-8'/>
	+ </function-decl>
	+ <function-decl name='nfs_copy_entries' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-17'/>
	+ <parameter type-id='type-id-84'/>
	+ <return type-id='type-id-8'/>
	+ </function-decl>
	+ <function-decl name='rename' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-84'/>
	+ <parameter type-id='type-id-84'/>
	+ <return type-id='type-id-8'/>
	+ </function-decl>
	+ </abi-instr>
	+ <abi-instr version='1.0' address-size='64' path='os/linux/nfs.c' comp-dir-path='/home/nabijaczleweli/store/code/zfs/lib/libshare' language='LANG_C99'>
	+ <function-decl name='fputs' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-84'/>
	+ <parameter type-id='type-id-150'/>
	+ <return type-id='type-id-8'/>
	+ </function-decl>
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	<class-decl name='sa_share_fsinfo' size-in-bits='64' is-struct='yes' visibility='default' id='type-id-545'>
	<data-member access='public' layout-offset-in-bits='0'>
	<var-decl name='shareopts' type-id='type-id-17' visibility='default'/>
	</data-member>
	</class-decl>
	<typedef-decl name='sa_share_fsinfo_t' type-id='type-id-545' id='type-id-546'/>
	<pointer-type-def type-id='type-id-546' size-in-bits='64' id='type-id-544'/>
	<pointer-type-def type-id='type-id-543' size-in-bits='64' id='type-id-547'/>
	<typedef-decl name='sa_share_impl_t' type-id='type-id-547' id='type-id-548'/>
	<pointer-type-def type-id='type-id-549' size-in-bits='64' id='type-id-537'/>
	<pointer-type-def type-id='type-id-550' size-in-bits='64' id='type-id-538'/>
	<pointer-type-def type-id='type-id-551' size-in-bits='64' id='type-id-539'/>
	<pointer-type-def type-id='type-id-552' size-in-bits='64' id='type-id-540'/>
	<pointer-type-def type-id='type-id-553' size-in-bits='64' id='type-id-541'/>
	<pointer-type-def type-id='type-id-554' size-in-bits='64' id='type-id-542'/>
	<typedef-decl name='sa_share_ops_t' type-id='type-id-536' id='type-id-555'/>
	<qualified-type-def type-id='type-id-555' const='yes' id='type-id-556'/>
	<pointer-type-def type-id='type-id-556' size-in-bits='64' id='type-id-535'/>
	- <typedef-decl name='sa_fstype_t' type-id='type-id-533' id='type-id-557'/>
	+ <qualified-type-def type-id='type-id-536' const='yes' id='type-id-557'/>
	<pointer-type-def type-id='type-id-557' size-in-bits='64' id='type-id-558'/>
	- <function-decl name='register_fstype' mangled-name='register_fstype' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_fstype'>
	- <parameter type-id='type-id-84' name='name'/>
	- <parameter type-id='type-id-535' name='ops'/>
	- <return type-id='type-id-558'/>
	- </function-decl>
	- <function-decl name='libshare_nfs_init' visibility='default' binding='global' size-in-bits='64'>
	- <return type-id='type-id-6'/>
	- </function-decl>
	- <function-decl name='libshare_smb_init' visibility='default' binding='global' size-in-bits='64'>
	- <return type-id='type-id-6'/>
	+ <function-decl name='register_fstype' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-84'/>
	+ <parameter type-id='type-id-558'/>
	+ <return type-id='type-id-534'/>
	</function-decl>
	- <function-decl name='sa_is_shared' mangled-name='sa_is_shared' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sa_is_shared'>
	- <parameter type-id='type-id-84' name='mountpoint'/>
	- <parameter type-id='type-id-17' name='protocol'/>
	- <return type-id='type-id-16'/>
	+ <pointer-type-def type-id='type-id-559' size-in-bits='64' id='type-id-560'/>
	+ <function-decl name='nfs_toggle_share' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-84'/>
	+ <parameter type-id='type-id-84'/>
	+ <parameter type-id='type-id-84'/>
	+ <parameter type-id='type-id-547'/>
	+ <parameter type-id='type-id-560'/>
	+ <return type-id='type-id-8'/>
	</function-decl>
	<function-type size-in-bits='64' id='type-id-554'>
	<return type-id='type-id-8'/>
	</function-type>
	<function-type size-in-bits='64' id='type-id-551'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-8'/>
	</function-type>
	+ <function-type size-in-bits='64' id='type-id-559'>
	+ <parameter type-id='type-id-547'/>
	+ <parameter type-id='type-id-17'/>
	+ <return type-id='type-id-8'/>
	+ </function-type>
	<function-type size-in-bits='64' id='type-id-549'>
	<parameter type-id='type-id-548'/>
	<return type-id='type-id-8'/>
	</function-type>
	<function-type size-in-bits='64' id='type-id-552'>
	<parameter type-id='type-id-548'/>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-8'/>
	</function-type>
	<function-type size-in-bits='64' id='type-id-550'>
	<parameter type-id='type-id-548'/>
	<return type-id='type-id-16'/>
	</function-type>
	<function-type size-in-bits='64' id='type-id-553'>
	<parameter type-id='type-id-548'/>
	<return type-id='type-id-6'/>
	</function-type>
	</abi-instr>
	- <abi-instr version='1.0' address-size='64' path='nfs.c' comp-dir-path='/home/nabijaczleweli/store/code/zfs/lib/libshare' language='LANG_C99'>
	- <function-decl name='mkdir' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-84'/>
	- <parameter type-id='type-id-5'/>
	- <return type-id='type-id-8'/>
	- </function-decl>
	- <function-decl name='mkostemp' mangled-name='mkostemp64' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-17'/>
	- <parameter type-id='type-id-8'/>
	- <return type-id='type-id-8'/>
	- </function-decl>
	- <function-decl name='flock' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-8'/>
	- <parameter type-id='type-id-8'/>
	- <return type-id='type-id-8'/>
	- </function-decl>
	- <function-decl name='nfs_copy_entries' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-17'/>
	- <parameter type-id='type-id-84'/>
	- <return type-id='type-id-8'/>
	- </function-decl>
	- <function-decl name='rename' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-84'/>
	- <parameter type-id='type-id-84'/>
	- <return type-id='type-id-8'/>
	- </function-decl>
	- </abi-instr>
	- <abi-instr version='1.0' address-size='64' path='os/linux/nfs.c' comp-dir-path='/home/nabijaczleweli/store/code/zfs/lib/libshare' language='LANG_C99'>
	- <function-decl name='fputs' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-84'/>
	- <parameter type-id='type-id-150'/>
	- <return type-id='type-id-8'/>
	- </function-decl>
	- <qualified-type-def type-id='type-id-536' const='yes' id='type-id-559'/>
	- <pointer-type-def type-id='type-id-559' size-in-bits='64' id='type-id-560'/>
	- <function-decl name='register_fstype' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-84'/>
	- <parameter type-id='type-id-560'/>
	- <return type-id='type-id-534'/>
	- </function-decl>
	- <pointer-type-def type-id='type-id-561' size-in-bits='64' id='type-id-562'/>
	- <function-decl name='nfs_toggle_share' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-84'/>
	- <parameter type-id='type-id-84'/>
	- <parameter type-id='type-id-84'/>
	- <parameter type-id='type-id-547'/>
	- <parameter type-id='type-id-562'/>
	- <return type-id='type-id-8'/>
	- </function-decl>
	- <function-type size-in-bits='64' id='type-id-561'>
	- <parameter type-id='type-id-547'/>
	- <parameter type-id='type-id-17'/>
	- <return type-id='type-id-8'/>
	- </function-type>
	- </abi-instr>
	<abi-instr version='1.0' address-size='64' path='os/linux/smb.c' comp-dir-path='/home/nabijaczleweli/store/code/zfs/lib/libshare' language='LANG_C99'>
	- <class-decl name='smb_share_s' size-in-bits='36992' is-struct='yes' visibility='default' id='type-id-563'>
	- <data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='name' type-id='type-id-564' visibility='default'/>
	- </data-member>
	- <data-member access='public' layout-offset-in-bits='2040'>
	- <var-decl name='path' type-id='type-id-109' visibility='default'/>
	- </data-member>
	- <data-member access='public' layout-offset-in-bits='34808'>
	- <var-decl name='comment' type-id='type-id-564' visibility='default'/>
	- </data-member>
	- <data-member access='public' layout-offset-in-bits='36864'>
	- <var-decl name='guest_ok' type-id='type-id-16' visibility='default'/>
	- </data-member>
	- <data-member access='public' layout-offset-in-bits='36928'>
	- <var-decl name='next' type-id='type-id-565' visibility='default'/>
	- </data-member>
	- </class-decl>
	-
	- <array-type-def dimensions='1' type-id='type-id-32' size-in-bits='2040' id='type-id-564'>
	- <subrange length='255' type-id='type-id-33' id='type-id-566'/>
	-
	- </array-type-def>
	- <pointer-type-def type-id='type-id-563' size-in-bits='64' id='type-id-565'/>
	- <typedef-decl name='smb_share_t' type-id='type-id-563' id='type-id-567'/>
	- <pointer-type-def type-id='type-id-567' size-in-bits='64' id='type-id-568'/>
	- <var-decl name='smb_shares' type-id='type-id-568' mangled-name='smb_shares' visibility='default' elf-symbol-id='smb_shares'/>
	<function-decl name='opendir' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-84'/>
	<return type-id='type-id-305'/>
	</function-decl>
	- <class-decl name='dirent' size-in-bits='2240' is-struct='yes' visibility='default' id='type-id-569'>
	+ <class-decl name='dirent' size-in-bits='2240' is-struct='yes' visibility='default' id='type-id-561'>
	<data-member access='public' layout-offset-in-bits='0'>
	<var-decl name='d_ino' type-id='type-id-307' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	<var-decl name='d_off' type-id='type-id-155' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	<var-decl name='d_reclen' type-id='type-id-152' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='144'>
	<var-decl name='d_type' type-id='type-id-75' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='152'>
	<var-decl name='d_name' type-id='type-id-12' visibility='default'/>
	</data-member>
	</class-decl>
	- <pointer-type-def type-id='type-id-569' size-in-bits='64' id='type-id-570'/>
	+ <pointer-type-def type-id='type-id-561' size-in-bits='64' id='type-id-562'/>
	<function-decl name='readdir' mangled-name='readdir64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-305'/>
	- <return type-id='type-id-570'/>
	+ <return type-id='type-id-562'/>
	</function-decl>
	<function-decl name='fgets' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-17'/>
	<parameter type-id='type-id-8'/>
	<parameter type-id='type-id-150'/>
	<return type-id='type-id-17'/>
	</function-decl>
	</abi-instr>
	</abi-corpus>
	diff --git a/sys/contrib/openzfs/lib/libzfs/libzfs_pool.c b/sys/contrib/openzfs/lib/libzfs/libzfs_pool.c
	index adc36c47f290..c0bf9d067d42 100644
	--- a/sys/contrib/openzfs/lib/libzfs/libzfs_pool.c
	+++ b/sys/contrib/openzfs/lib/libzfs/libzfs_pool.c
	@@ -1,4948 +1,4948 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	/*
	* Copyright 2015 Nexenta Systems, Inc. All rights reserved.
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2011, 2020 by Delphix. All rights reserved.
	* Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>
	* Copyright (c) 2018 Datto Inc.
	* Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	* Copyright (c) 2017, Intel Corporation.
	* Copyright (c) 2018, loli10K <ezomori.nozomu@gmail.com>
	* Copyright (c) 2021, Colm Buckley <colm@tuatha.org>
	*/

	#include <errno.h>
	#include <libintl.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <strings.h>
	#include <unistd.h>
	#include <libgen.h>
	#include <zone.h>
	#include <sys/stat.h>
	#include <sys/efi_partition.h>
	#include <sys/systeminfo.h>
	#include <sys/zfs_ioctl.h>
	#include <sys/zfs_sysfs.h>
	#include <sys/vdev_disk.h>
	#include <sys/types.h>
	#include <dlfcn.h>
	#include <libzutil.h>
	#include <fcntl.h>

	#include "zfs_namecheck.h"
	#include "zfs_prop.h"
	#include "libzfs_impl.h"
	#include "zfs_comutil.h"
	#include "zfeature_common.h"

	static boolean_t zpool_vdev_is_interior(const char *name);

	typedef struct prop_flags {
	int create:1; /* Validate property on creation */
	int import:1; /* Validate property on import */
	} prop_flags_t;

	/*
	* ====================================================================
	* zpool property functions
	* ====================================================================
	*/

	static int
	zpool_get_all_props(zpool_handle_t *zhp)
	{
	zfs_cmd_t zc = {"\0"};
	libzfs_handle_t *hdl = zhp->zpool_hdl;

	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));

	if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0)
	return (-1);

	while (zfs_ioctl(hdl, ZFS_IOC_POOL_GET_PROPS, &zc) != 0) {
	if (errno == ENOMEM) {
	if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) {
	zcmd_free_nvlists(&zc);
	return (-1);
	}
	} else {
	zcmd_free_nvlists(&zc);
	return (-1);
	}
	}

	if (zcmd_read_dst_nvlist(hdl, &zc, &zhp->zpool_props) != 0) {
	zcmd_free_nvlists(&zc);
	return (-1);
	}

	zcmd_free_nvlists(&zc);

	return (0);
	}

	int
	zpool_props_refresh(zpool_handle_t *zhp)
	{
	nvlist_t *old_props;

	old_props = zhp->zpool_props;

	if (zpool_get_all_props(zhp) != 0)
	return (-1);

	nvlist_free(old_props);
	return (0);
	}

	static const char *
	zpool_get_prop_string(zpool_handle_t *zhp, zpool_prop_t prop,
	zprop_source_t *src)
	{
	nvlist_t nv, nvl;
	uint64_t ival;
	char *value;
	zprop_source_t source;

	nvl = zhp->zpool_props;
	if (nvlist_lookup_nvlist(nvl, zpool_prop_to_name(prop), &nv) == 0) {
	verify(nvlist_lookup_uint64(nv, ZPROP_SOURCE, &ival) == 0);
	source = ival;
	verify(nvlist_lookup_string(nv, ZPROP_VALUE, &value) == 0);
	} else {
	source = ZPROP_SRC_DEFAULT;
	if ((value = (char *)zpool_prop_default_string(prop)) == NULL)
	value = "-";
	}

	if (src)
	*src = source;

	return (value);
	}

	uint64_t
	zpool_get_prop_int(zpool_handle_t zhp, zpool_prop_t prop, zprop_source_t src)
	{
	nvlist_t nv, nvl;
	uint64_t value;
	zprop_source_t source;

	if (zhp->zpool_props == NULL && zpool_get_all_props(zhp)) {
	/*
	* zpool_get_all_props() has most likely failed because
	* the pool is faulted, but if all we need is the top level
	* vdev's guid then get it from the zhp config nvlist.
	*/
	if ((prop == ZPOOL_PROP_GUID) &&
	(nvlist_lookup_nvlist(zhp->zpool_config,
	ZPOOL_CONFIG_VDEV_TREE, &nv) == 0) &&
	(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &value)
	== 0)) {
	return (value);
	}
	return (zpool_prop_default_numeric(prop));
	}

	nvl = zhp->zpool_props;
	if (nvlist_lookup_nvlist(nvl, zpool_prop_to_name(prop), &nv) == 0) {
	verify(nvlist_lookup_uint64(nv, ZPROP_SOURCE, &value) == 0);
	source = value;
	verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0);
	} else {
	source = ZPROP_SRC_DEFAULT;
	value = zpool_prop_default_numeric(prop);
	}

	if (src)
	*src = source;

	return (value);
	}

	/*
	* Map VDEV STATE to printed strings.
	*/
	const char *
	zpool_state_to_name(vdev_state_t state, vdev_aux_t aux)
	{
	switch (state) {
	case VDEV_STATE_CLOSED:
	case VDEV_STATE_OFFLINE:
	return (gettext("OFFLINE"));
	case VDEV_STATE_REMOVED:
	return (gettext("REMOVED"));
	case VDEV_STATE_CANT_OPEN:
	if (aux == VDEV_AUX_CORRUPT_DATA \|\| aux == VDEV_AUX_BAD_LOG)
	return (gettext("FAULTED"));
	else if (aux == VDEV_AUX_SPLIT_POOL)
	return (gettext("SPLIT"));
	else
	return (gettext("UNAVAIL"));
	case VDEV_STATE_FAULTED:
	return (gettext("FAULTED"));
	case VDEV_STATE_DEGRADED:
	return (gettext("DEGRADED"));
	case VDEV_STATE_HEALTHY:
	return (gettext("ONLINE"));

	default:
	break;
	}

	return (gettext("UNKNOWN"));
	}

	/*
	* Map POOL STATE to printed strings.
	*/
	const char *
	zpool_pool_state_to_name(pool_state_t state)
	{
	switch (state) {
	default:
	break;
	case POOL_STATE_ACTIVE:
	return (gettext("ACTIVE"));
	case POOL_STATE_EXPORTED:
	return (gettext("EXPORTED"));
	case POOL_STATE_DESTROYED:
	return (gettext("DESTROYED"));
	case POOL_STATE_SPARE:
	return (gettext("SPARE"));
	case POOL_STATE_L2CACHE:
	return (gettext("L2CACHE"));
	case POOL_STATE_UNINITIALIZED:
	return (gettext("UNINITIALIZED"));
	case POOL_STATE_UNAVAIL:
	return (gettext("UNAVAIL"));
	case POOL_STATE_POTENTIALLY_ACTIVE:
	return (gettext("POTENTIALLY_ACTIVE"));
	}

	return (gettext("UNKNOWN"));
	}

	/*
	* Given a pool handle, return the pool health string ("ONLINE", "DEGRADED",
	* "SUSPENDED", etc).
	*/
	const char *
	zpool_get_state_str(zpool_handle_t *zhp)
	{
	zpool_errata_t errata;
	zpool_status_t status;
	nvlist_t *nvroot;
	vdev_stat_t *vs;
	uint_t vsc;
	const char *str;

	status = zpool_get_status(zhp, NULL, &errata);

	if (zpool_get_state(zhp) == POOL_STATE_UNAVAIL) {
	str = gettext("FAULTED");
	} else if (status == ZPOOL_STATUS_IO_FAILURE_WAIT \|\|
	status == ZPOOL_STATUS_IO_FAILURE_MMP) {
	str = gettext("SUSPENDED");
	} else {
	verify(nvlist_lookup_nvlist(zpool_get_config(zhp, NULL),
	ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0);
	verify(nvlist_lookup_uint64_array(nvroot,
	ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &vsc)
	== 0);
	str = zpool_state_to_name(vs->vs_state, vs->vs_aux);
	}
	return (str);
	}

	/*
	* Get a zpool property value for 'prop' and return the value in
	* a pre-allocated buffer.
	*/
	int
	zpool_get_prop(zpool_handle_t zhp, zpool_prop_t prop, char buf,
	size_t len, zprop_source_t *srctype, boolean_t literal)
	{
	uint64_t intval;
	const char *strval;
	zprop_source_t src = ZPROP_SRC_NONE;

	if (zpool_get_state(zhp) == POOL_STATE_UNAVAIL) {
	switch (prop) {
	case ZPOOL_PROP_NAME:
	(void) strlcpy(buf, zpool_get_name(zhp), len);
	break;

	case ZPOOL_PROP_HEALTH:
	(void) strlcpy(buf, zpool_get_state_str(zhp), len);
	break;

	case ZPOOL_PROP_GUID:
	intval = zpool_get_prop_int(zhp, prop, &src);
	(void) snprintf(buf, len, "%llu", (u_longlong_t)intval);
	break;

	case ZPOOL_PROP_ALTROOT:
	case ZPOOL_PROP_CACHEFILE:
	case ZPOOL_PROP_COMMENT:
	case ZPOOL_PROP_COMPATIBILITY:
	if (zhp->zpool_props != NULL \|\|
	zpool_get_all_props(zhp) == 0) {
	(void) strlcpy(buf,
	zpool_get_prop_string(zhp, prop, &src),
	len);
	break;
	}
	/* FALLTHROUGH */
	default:
	(void) strlcpy(buf, "-", len);
	break;
	}

	if (srctype != NULL)
	*srctype = src;
	return (0);
	}

	if (zhp->zpool_props == NULL && zpool_get_all_props(zhp) &&
	prop != ZPOOL_PROP_NAME)
	return (-1);

	switch (zpool_prop_get_type(prop)) {
	case PROP_TYPE_STRING:
	(void) strlcpy(buf, zpool_get_prop_string(zhp, prop, &src),
	len);
	break;

	case PROP_TYPE_NUMBER:
	intval = zpool_get_prop_int(zhp, prop, &src);

	switch (prop) {
	case ZPOOL_PROP_SIZE:
	case ZPOOL_PROP_ALLOCATED:
	case ZPOOL_PROP_FREE:
	case ZPOOL_PROP_FREEING:
	case ZPOOL_PROP_LEAKED:
	case ZPOOL_PROP_ASHIFT:
	if (literal)
	(void) snprintf(buf, len, "%llu",
	(u_longlong_t)intval);
	else
	(void) zfs_nicenum(intval, buf, len);
	break;

	case ZPOOL_PROP_EXPANDSZ:
	case ZPOOL_PROP_CHECKPOINT:
	if (intval == 0) {
	(void) strlcpy(buf, "-", len);
	} else if (literal) {
	(void) snprintf(buf, len, "%llu",
	(u_longlong_t)intval);
	} else {
	(void) zfs_nicebytes(intval, buf, len);
	}
	break;

	case ZPOOL_PROP_CAPACITY:
	if (literal) {
	(void) snprintf(buf, len, "%llu",
	(u_longlong_t)intval);
	} else {
	(void) snprintf(buf, len, "%llu%%",
	(u_longlong_t)intval);
	}
	break;

	case ZPOOL_PROP_FRAGMENTATION:
	if (intval == UINT64_MAX) {
	(void) strlcpy(buf, "-", len);
	} else if (literal) {
	(void) snprintf(buf, len, "%llu",
	(u_longlong_t)intval);
	} else {
	(void) snprintf(buf, len, "%llu%%",
	(u_longlong_t)intval);
	}
	break;

	case ZPOOL_PROP_DEDUPRATIO:
	if (literal)
	(void) snprintf(buf, len, "%llu.%02llu",
	(u_longlong_t)(intval / 100),
	(u_longlong_t)(intval % 100));
	else
	(void) snprintf(buf, len, "%llu.%02llux",
	(u_longlong_t)(intval / 100),
	(u_longlong_t)(intval % 100));
	break;

	case ZPOOL_PROP_HEALTH:
	(void) strlcpy(buf, zpool_get_state_str(zhp), len);
	break;
	case ZPOOL_PROP_VERSION:
	if (intval >= SPA_VERSION_FEATURES) {
	(void) snprintf(buf, len, "-");
	break;
	}
	/* FALLTHROUGH */
	default:
	(void) snprintf(buf, len, "%llu", (u_longlong_t)intval);
	}
	break;

	case PROP_TYPE_INDEX:
	intval = zpool_get_prop_int(zhp, prop, &src);
	if (zpool_prop_index_to_string(prop, intval, &strval)
	!= 0)
	return (-1);
	(void) strlcpy(buf, strval, len);
	break;

	default:
	abort();
	}

	if (srctype)
	*srctype = src;

	return (0);
	}

	/*
	* Check if the bootfs name has the same pool name as it is set to.
	* Assuming bootfs is a valid dataset name.
	*/
	static boolean_t
	bootfs_name_valid(const char pool, const char bootfs)
	{
	int len = strlen(pool);
	if (bootfs[0] == '\0')
	return (B_TRUE);

	if (!zfs_name_valid(bootfs, ZFS_TYPE_FILESYSTEM\|ZFS_TYPE_SNAPSHOT))
	return (B_FALSE);

	if (strncmp(pool, bootfs, len) == 0 &&
	(bootfs[len] == '/' \|\| bootfs[len] == '\0'))
	return (B_TRUE);

	return (B_FALSE);
	}

	/*
	* Given an nvlist of zpool properties to be set, validate that they are
	* correct, and parse any numeric properties (index, boolean, etc) if they are
	* specified as strings.
	*/
	static nvlist_t *
	zpool_valid_proplist(libzfs_handle_t hdl, const char poolname,
	nvlist_t props, uint64_t version, prop_flags_t flags, char errbuf)
	{
	nvpair_t *elem;
	nvlist_t *retprops;
	zpool_prop_t prop;
	char *strval;
	uint64_t intval;
	char slash, check;
	struct stat64 statbuf;
	zpool_handle_t *zhp;
	char report[1024];

	if (nvlist_alloc(&retprops, NV_UNIQUE_NAME, 0) != 0) {
	(void) no_memory(hdl);
	return (NULL);
	}

	elem = NULL;
	while ((elem = nvlist_next_nvpair(props, elem)) != NULL) {
	const char *propname = nvpair_name(elem);

	prop = zpool_name_to_prop(propname);
	if (prop == ZPOOL_PROP_INVAL && zpool_prop_feature(propname)) {
	int err;
	char *fname = strchr(propname, '@') + 1;

	err = zfeature_lookup_name(fname, NULL);
	if (err != 0) {
	ASSERT3U(err, ==, ENOENT);
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"feature '%s' unsupported by kernel"),
	fname);
	(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}

	if (nvpair_type(elem) != DATA_TYPE_STRING) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"'%s' must be a string"), propname);
	(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}

	(void) nvpair_value_string(elem, &strval);
	if (strcmp(strval, ZFS_FEATURE_ENABLED) != 0 &&
	strcmp(strval, ZFS_FEATURE_DISABLED) != 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"property '%s' can only be set to "
	"'enabled' or 'disabled'"), propname);
	(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}

	if (!flags.create &&
	strcmp(strval, ZFS_FEATURE_DISABLED) == 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"property '%s' can only be set to "
	"'disabled' at creation time"), propname);
	(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}

	if (nvlist_add_uint64(retprops, propname, 0) != 0) {
	(void) no_memory(hdl);
	goto error;
	}
	continue;
	}

	/*
	* Make sure this property is valid and applies to this type.
	*/
	if (prop == ZPOOL_PROP_INVAL) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"invalid property '%s'"), propname);
	(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}

	if (zpool_prop_readonly(prop)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "'%s' "
	"is readonly"), propname);
	(void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf);
	goto error;
	}

	if (!flags.create && zpool_prop_setonce(prop)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"property '%s' can only be set at "
	"creation time"), propname);
	(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}

	if (zprop_parse_value(hdl, elem, prop, ZFS_TYPE_POOL, retprops,
	&strval, &intval, errbuf) != 0)
	goto error;

	/*
	* Perform additional checking for specific properties.
	*/
	switch (prop) {
	case ZPOOL_PROP_VERSION:
	if (intval < version \|\|
	!SPA_VERSION_IS_SUPPORTED(intval)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"property '%s' number %llu is invalid."),
	propname, (unsigned long long)intval);
	(void) zfs_error(hdl, EZFS_BADVERSION, errbuf);
	goto error;
	}
	break;

	case ZPOOL_PROP_ASHIFT:
	if (intval != 0 &&
	(intval < ASHIFT_MIN \|\| intval > ASHIFT_MAX)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"property '%s' number %llu is invalid, "
	"only values between %" PRId32 " and %"
	PRId32 " are allowed."),
	propname, (unsigned long long)intval,
	ASHIFT_MIN, ASHIFT_MAX);
	(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}
	break;

	case ZPOOL_PROP_BOOTFS:
	if (flags.create \|\| flags.import) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"property '%s' cannot be set at creation "
	"or import time"), propname);
	(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}

	if (version < SPA_VERSION_BOOTFS) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"pool must be upgraded to support "
	"'%s' property"), propname);
	(void) zfs_error(hdl, EZFS_BADVERSION, errbuf);
	goto error;
	}

	/*
	* bootfs property value has to be a dataset name and
	* the dataset has to be in the same pool as it sets to.
	*/
	if (!bootfs_name_valid(poolname, strval)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "'%s' "
	"is an invalid name"), strval);
	(void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf);
	goto error;
	}

	if ((zhp = zpool_open_canfail(hdl, poolname)) == NULL) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"could not open pool '%s'"), poolname);
	(void) zfs_error(hdl, EZFS_OPENFAILED, errbuf);
	goto error;
	}
	zpool_close(zhp);
	break;

	case ZPOOL_PROP_ALTROOT:
	if (!flags.create && !flags.import) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"property '%s' can only be set during pool "
	"creation or import"), propname);
	(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}

	if (strval[0] != '/') {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"bad alternate root '%s'"), strval);
	(void) zfs_error(hdl, EZFS_BADPATH, errbuf);
	goto error;
	}
	break;

	case ZPOOL_PROP_CACHEFILE:
	if (strval[0] == '\0')
	break;

	if (strcmp(strval, "none") == 0)
	break;

	if (strval[0] != '/') {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"property '%s' must be empty, an "
	"absolute path, or 'none'"), propname);
	(void) zfs_error(hdl, EZFS_BADPATH, errbuf);
	goto error;
	}

	slash = strrchr(strval, '/');

	if (slash[1] == '\0' \|\| strcmp(slash, "/.") == 0 \|\|
	strcmp(slash, "/..") == 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"'%s' is not a valid file"), strval);
	(void) zfs_error(hdl, EZFS_BADPATH, errbuf);
	goto error;
	}

	*slash = '\0';

	if (strval[0] != '\0' &&
	(stat64(strval, &statbuf) != 0 \|\|
	!S_ISDIR(statbuf.st_mode))) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"'%s' is not a valid directory"),
	strval);
	(void) zfs_error(hdl, EZFS_BADPATH, errbuf);
	goto error;
	}

	*slash = '/';
	break;

	case ZPOOL_PROP_COMPATIBILITY:
	switch (zpool_load_compat(strval, NULL, report, 1024)) {
	case ZPOOL_COMPATIBILITY_OK:
	case ZPOOL_COMPATIBILITY_WARNTOKEN:
	break;
	case ZPOOL_COMPATIBILITY_BADFILE:
	case ZPOOL_COMPATIBILITY_BADTOKEN:
	case ZPOOL_COMPATIBILITY_NOFILES:
	zfs_error_aux(hdl, "%s", report);
	(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}
	break;

	case ZPOOL_PROP_COMMENT:
	for (check = strval; *check != '\0'; check++) {
	if (!isprint(*check)) {
	zfs_error_aux(hdl,
	dgettext(TEXT_DOMAIN,
	"comment may only have printable "
	"characters"));
	(void) zfs_error(hdl, EZFS_BADPROP,
	errbuf);
	goto error;
	}
	}
	if (strlen(strval) > ZPROP_MAX_COMMENT) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"comment must not exceed %d characters"),
	ZPROP_MAX_COMMENT);
	(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}
	break;
	case ZPOOL_PROP_READONLY:
	if (!flags.import) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"property '%s' can only be set at "
	"import time"), propname);
	(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}
	break;
	case ZPOOL_PROP_MULTIHOST:
	if (get_system_hostid() == 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"requires a non-zero system hostid"));
	(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}
	break;
	case ZPOOL_PROP_DEDUPDITTO:
	printf("Note: property '%s' no longer has "
	"any effect\n", propname);
	break;

	default:
	break;
	}
	}

	return (retprops);
	error:
	nvlist_free(retprops);
	return (NULL);
	}

	/*
	* Set zpool property : propname=propval.
	*/
	int
	zpool_set_prop(zpool_handle_t zhp, const char propname, const char *propval)
	{
	zfs_cmd_t zc = {"\0"};
	int ret = -1;
	char errbuf[1024];
	nvlist_t *nvl = NULL;
	nvlist_t *realprops;
	uint64_t version;
	prop_flags_t flags = { 0 };

	(void) snprintf(errbuf, sizeof (errbuf),
	dgettext(TEXT_DOMAIN, "cannot set property for '%s'"),
	zhp->zpool_name);

	if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
	return (no_memory(zhp->zpool_hdl));

	if (nvlist_add_string(nvl, propname, propval) != 0) {
	nvlist_free(nvl);
	return (no_memory(zhp->zpool_hdl));
	}

	version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL);
	if ((realprops = zpool_valid_proplist(zhp->zpool_hdl,
	zhp->zpool_name, nvl, version, flags, errbuf)) == NULL) {
	nvlist_free(nvl);
	return (-1);
	}

	nvlist_free(nvl);
	nvl = realprops;

	/*
	* Execute the corresponding ioctl() to set this property.
	*/
	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));

	if (zcmd_write_src_nvlist(zhp->zpool_hdl, &zc, nvl) != 0) {
	nvlist_free(nvl);
	return (-1);
	}

	ret = zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_POOL_SET_PROPS, &zc);

	zcmd_free_nvlists(&zc);
	nvlist_free(nvl);

	if (ret)
	(void) zpool_standard_error(zhp->zpool_hdl, errno, errbuf);
	else
	(void) zpool_props_refresh(zhp);

	return (ret);
	}

	int
	zpool_expand_proplist(zpool_handle_t zhp, zprop_list_t *plp,
	boolean_t literal)
	{
	libzfs_handle_t *hdl = zhp->zpool_hdl;
	zprop_list_t *entry;
	char buf[ZFS_MAXPROPLEN];
	nvlist_t *features = NULL;
	nvpair_t *nvp;
	zprop_list_t **last;
	boolean_t firstexpand = (NULL == *plp);
	int i;

	if (zprop_expand_list(hdl, plp, ZFS_TYPE_POOL) != 0)
	return (-1);

	last = plp;
	while (*last != NULL)
	last = &(*last)->pl_next;

	if ((*plp)->pl_all)
	features = zpool_get_features(zhp);

	if ((*plp)->pl_all && firstexpand) {
	for (i = 0; i < SPA_FEATURES; i++) {
	zprop_list_t *entry = zfs_alloc(hdl,
	sizeof (zprop_list_t));
	entry->pl_prop = ZPROP_INVAL;
	entry->pl_user_prop = zfs_asprintf(hdl, "feature@%s",
	spa_feature_table[i].fi_uname);
	entry->pl_width = strlen(entry->pl_user_prop);
	entry->pl_all = B_TRUE;

	*last = entry;
	last = &entry->pl_next;
	}
	}

	/* add any unsupported features */
	for (nvp = nvlist_next_nvpair(features, NULL);
	nvp != NULL; nvp = nvlist_next_nvpair(features, nvp)) {
	char *propname;
	boolean_t found;
	zprop_list_t *entry;

	if (zfeature_is_supported(nvpair_name(nvp)))
	continue;

	propname = zfs_asprintf(hdl, "unsupported@%s",
	nvpair_name(nvp));

	/*
	* Before adding the property to the list make sure that no
	* other pool already added the same property.
	*/
	found = B_FALSE;
	entry = *plp;
	while (entry != NULL) {
	if (entry->pl_user_prop != NULL &&
	strcmp(propname, entry->pl_user_prop) == 0) {
	found = B_TRUE;
	break;
	}
	entry = entry->pl_next;
	}
	if (found) {
	free(propname);
	continue;
	}

	entry = zfs_alloc(hdl, sizeof (zprop_list_t));
	entry->pl_prop = ZPROP_INVAL;
	entry->pl_user_prop = propname;
	entry->pl_width = strlen(entry->pl_user_prop);
	entry->pl_all = B_TRUE;

	*last = entry;
	last = &entry->pl_next;
	}

	for (entry = *plp; entry != NULL; entry = entry->pl_next) {
	if (entry->pl_fixed && !literal)
	continue;

	if (entry->pl_prop != ZPROP_INVAL &&
	zpool_get_prop(zhp, entry->pl_prop, buf, sizeof (buf),
	NULL, literal) == 0) {
	if (strlen(buf) > entry->pl_width)
	entry->pl_width = strlen(buf);
	}
	}

	return (0);
	}

	/*
	* Get the state for the given feature on the given ZFS pool.
	*/
	int
	zpool_prop_get_feature(zpool_handle_t zhp, const char propname, char *buf,
	size_t len)
	{
	uint64_t refcount;
	boolean_t found = B_FALSE;
	nvlist_t *features = zpool_get_features(zhp);
	boolean_t supported;
	const char *feature = strchr(propname, '@') + 1;

	supported = zpool_prop_feature(propname);
	ASSERT(supported \|\| zpool_prop_unsupported(propname));

	/*
	* Convert from feature name to feature guid. This conversion is
	* unnecessary for unsupported@... properties because they already
	* use guids.
	*/
	if (supported) {
	int ret;
	spa_feature_t fid;

	ret = zfeature_lookup_name(feature, &fid);
	if (ret != 0) {
	(void) strlcpy(buf, "-", len);
	return (ENOTSUP);
	}
	feature = spa_feature_table[fid].fi_guid;
	}

	if (nvlist_lookup_uint64(features, feature, &refcount) == 0)
	found = B_TRUE;

	if (supported) {
	if (!found) {
	(void) strlcpy(buf, ZFS_FEATURE_DISABLED, len);
	} else {
	if (refcount == 0)
	(void) strlcpy(buf, ZFS_FEATURE_ENABLED, len);
	else
	(void) strlcpy(buf, ZFS_FEATURE_ACTIVE, len);
	}
	} else {
	if (found) {
	if (refcount == 0) {
	(void) strcpy(buf, ZFS_UNSUPPORTED_INACTIVE);
	} else {
	(void) strcpy(buf, ZFS_UNSUPPORTED_READONLY);
	}
	} else {
	(void) strlcpy(buf, "-", len);
	return (ENOTSUP);
	}
	}

	return (0);
	}

	/*
	* Validate the given pool name, optionally putting an extended error message in
	* 'buf'.
	*/
	boolean_t
	zpool_name_valid(libzfs_handle_t hdl, boolean_t isopen, const char pool)
	{
	namecheck_err_t why;
	char what;
	int ret;

	ret = pool_namecheck(pool, &why, &what);

	/*
	* The rules for reserved pool names were extended at a later point.
	* But we need to support users with existing pools that may now be
	* invalid. So we only check for this expanded set of names during a
	* create (or import), and only in userland.
	*/
	if (ret == 0 && !isopen &&
	(strncmp(pool, "mirror", 6) == 0 \|\|
	strncmp(pool, "raidz", 5) == 0 \|\|
	strncmp(pool, "draid", 5) == 0 \|\|
	strncmp(pool, "spare", 5) == 0 \|\|
	strcmp(pool, "log") == 0)) {
	if (hdl != NULL)
	zfs_error_aux(hdl,
	dgettext(TEXT_DOMAIN, "name is reserved"));
	return (B_FALSE);
	}


	if (ret != 0) {
	if (hdl != NULL) {
	switch (why) {
	case NAME_ERR_TOOLONG:
	zfs_error_aux(hdl,
	dgettext(TEXT_DOMAIN, "name is too long"));
	break;

	case NAME_ERR_INVALCHAR:
	zfs_error_aux(hdl,
	dgettext(TEXT_DOMAIN, "invalid character "
	"'%c' in pool name"), what);
	break;

	case NAME_ERR_NOLETTER:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"name must begin with a letter"));
	break;

	case NAME_ERR_RESERVED:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"name is reserved"));
	break;

	case NAME_ERR_DISKLIKE:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"pool name is reserved"));
	break;

	case NAME_ERR_LEADING_SLASH:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"leading slash in name"));
	break;

	case NAME_ERR_EMPTY_COMPONENT:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"empty component in name"));
	break;

	case NAME_ERR_TRAILING_SLASH:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"trailing slash in name"));
	break;

	case NAME_ERR_MULTIPLE_DELIMITERS:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"multiple '@' and/or '#' delimiters in "
	"name"));
	break;

	case NAME_ERR_NO_AT:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"permission set is missing '@'"));
	break;

	default:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"(%d) not defined"), why);
	break;
	}
	}
	return (B_FALSE);
	}

	return (B_TRUE);
	}

	/*
	* Open a handle to the given pool, even if the pool is currently in the FAULTED
	* state.
	*/
	zpool_handle_t *
	zpool_open_canfail(libzfs_handle_t hdl, const char pool)
	{
	zpool_handle_t *zhp;
	boolean_t missing;

	/*
	* Make sure the pool name is valid.
	*/
	if (!zpool_name_valid(hdl, B_TRUE, pool)) {
	(void) zfs_error_fmt(hdl, EZFS_INVALIDNAME,
	dgettext(TEXT_DOMAIN, "cannot open '%s'"),
	pool);
	return (NULL);
	}

	if ((zhp = zfs_alloc(hdl, sizeof (zpool_handle_t))) == NULL)
	return (NULL);

	zhp->zpool_hdl = hdl;
	(void) strlcpy(zhp->zpool_name, pool, sizeof (zhp->zpool_name));

	if (zpool_refresh_stats(zhp, &missing) != 0) {
	zpool_close(zhp);
	return (NULL);
	}

	if (missing) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "no such pool"));
	(void) zfs_error_fmt(hdl, EZFS_NOENT,
	dgettext(TEXT_DOMAIN, "cannot open '%s'"), pool);
	zpool_close(zhp);
	return (NULL);
	}

	return (zhp);
	}

	/*
	* Like the above, but silent on error. Used when iterating over pools (because
	* the configuration cache may be out of date).
	*/
	int
	zpool_open_silent(libzfs_handle_t hdl, const char pool, zpool_handle_t **ret)
	{
	zpool_handle_t *zhp;
	boolean_t missing;

	if ((zhp = zfs_alloc(hdl, sizeof (zpool_handle_t))) == NULL)
	return (-1);

	zhp->zpool_hdl = hdl;
	(void) strlcpy(zhp->zpool_name, pool, sizeof (zhp->zpool_name));

	if (zpool_refresh_stats(zhp, &missing) != 0) {
	zpool_close(zhp);
	return (-1);
	}

	if (missing) {
	zpool_close(zhp);
	*ret = NULL;
	return (0);
	}

	*ret = zhp;
	return (0);
	}

	/*
	* Similar to zpool_open_canfail(), but refuses to open pools in the faulted
	* state.
	*/
	zpool_handle_t *
	zpool_open(libzfs_handle_t hdl, const char pool)
	{
	zpool_handle_t *zhp;

	if ((zhp = zpool_open_canfail(hdl, pool)) == NULL)
	return (NULL);

	if (zhp->zpool_state == POOL_STATE_UNAVAIL) {
	(void) zfs_error_fmt(hdl, EZFS_POOLUNAVAIL,
	dgettext(TEXT_DOMAIN, "cannot open '%s'"), zhp->zpool_name);
	zpool_close(zhp);
	return (NULL);
	}

	return (zhp);
	}

	/*
	* Close the handle. Simply frees the memory associated with the handle.
	*/
	void
	zpool_close(zpool_handle_t *zhp)
	{
	nvlist_free(zhp->zpool_config);
	nvlist_free(zhp->zpool_old_config);
	nvlist_free(zhp->zpool_props);
	free(zhp);
	}

	/*
	* Return the name of the pool.
	*/
	const char *
	zpool_get_name(zpool_handle_t *zhp)
	{
	return (zhp->zpool_name);
	}


	/*
	* Return the state of the pool (ACTIVE or UNAVAILABLE)
	*/
	int
	zpool_get_state(zpool_handle_t *zhp)
	{
	return (zhp->zpool_state);
	}

	/*
	* Check if vdev list contains a special vdev
	*/
	static boolean_t
	zpool_has_special_vdev(nvlist_t *nvroot)
	{
	nvlist_t **child;
	uint_t children;

	if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, &child,
	&children) == 0) {
	for (uint_t c = 0; c < children; c++) {
	char *bias;

	if (nvlist_lookup_string(child[c],
	ZPOOL_CONFIG_ALLOCATION_BIAS, &bias) == 0 &&
	strcmp(bias, VDEV_ALLOC_BIAS_SPECIAL) == 0) {
	return (B_TRUE);
	}
	}
	}
	return (B_FALSE);
	}

	/*
	* Check if vdev list contains a dRAID vdev
	*/
	static boolean_t
	zpool_has_draid_vdev(nvlist_t *nvroot)
	{
	nvlist_t **child;
	uint_t children;

	if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
	&child, &children) == 0) {
	for (uint_t c = 0; c < children; c++) {
	char *type;

	if (nvlist_lookup_string(child[c],
	ZPOOL_CONFIG_TYPE, &type) == 0 &&
	strcmp(type, VDEV_TYPE_DRAID) == 0) {
	return (B_TRUE);
	}
	}
	}
	return (B_FALSE);
	}

	/*
	* Output a dRAID top-level vdev name in to the provided buffer.
	*/
	static char *
	zpool_draid_name(char *name, int len, uint64_t data, uint64_t parity,
	uint64_t spares, uint64_t children)
	{
	snprintf(name, len, "%s%llu:%llud:%lluc:%llus",
	VDEV_TYPE_DRAID, (u_longlong_t)parity, (u_longlong_t)data,
	(u_longlong_t)children, (u_longlong_t)spares);

	return (name);
	}

	/*
	* Return B_TRUE if the provided name is a dRAID spare name.
	*/
	boolean_t
	zpool_is_draid_spare(const char *name)
	{
	uint64_t spare_id, parity, vdev_id;

	if (sscanf(name, VDEV_TYPE_DRAID "%llu-%llu-%llu",
	(u_longlong_t )&parity, (u_longlong_t )&vdev_id,
	(u_longlong_t *)&spare_id) == 3) {
	return (B_TRUE);
	}

	return (B_FALSE);
	}

	/*
	* Create the named pool, using the provided vdev list. It is assumed
	* that the consumer has already validated the contents of the nvlist, so we
	* don't have to worry about error semantics.
	*/
	int
	zpool_create(libzfs_handle_t hdl, const char pool, nvlist_t *nvroot,
	nvlist_t props, nvlist_t fsprops)
	{
	zfs_cmd_t zc = {"\0"};
	nvlist_t *zc_fsprops = NULL;
	nvlist_t *zc_props = NULL;
	nvlist_t *hidden_args = NULL;
	uint8_t *wkeydata = NULL;
	uint_t wkeylen = 0;
	char msg[1024];
	int ret = -1;

	(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
	"cannot create '%s'"), pool);

	if (!zpool_name_valid(hdl, B_FALSE, pool))
	return (zfs_error(hdl, EZFS_INVALIDNAME, msg));

	if (zcmd_write_conf_nvlist(hdl, &zc, nvroot) != 0)
	return (-1);

	if (props) {
	prop_flags_t flags = { .create = B_TRUE, .import = B_FALSE };

	if ((zc_props = zpool_valid_proplist(hdl, pool, props,
	SPA_VERSION_1, flags, msg)) == NULL) {
	goto create_failed;
	}
	}

	if (fsprops) {
	uint64_t zoned;
	char *zonestr;

	zoned = ((nvlist_lookup_string(fsprops,
	zfs_prop_to_name(ZFS_PROP_ZONED), &zonestr) == 0) &&
	strcmp(zonestr, "on") == 0);

	if ((zc_fsprops = zfs_valid_proplist(hdl, ZFS_TYPE_FILESYSTEM,
	fsprops, zoned, NULL, NULL, B_TRUE, msg)) == NULL) {
	goto create_failed;
	}

	if (nvlist_exists(zc_fsprops,
	zfs_prop_to_name(ZFS_PROP_SPECIAL_SMALL_BLOCKS)) &&
	!zpool_has_special_vdev(nvroot)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"%s property requires a special vdev"),
	zfs_prop_to_name(ZFS_PROP_SPECIAL_SMALL_BLOCKS));
	(void) zfs_error(hdl, EZFS_BADPROP, msg);
	goto create_failed;
	}

	if (!zc_props &&
	(nvlist_alloc(&zc_props, NV_UNIQUE_NAME, 0) != 0)) {
	goto create_failed;
	}
	if (zfs_crypto_create(hdl, NULL, zc_fsprops, props, B_TRUE,
	&wkeydata, &wkeylen) != 0) {
	zfs_error(hdl, EZFS_CRYPTOFAILED, msg);
	goto create_failed;
	}
	if (nvlist_add_nvlist(zc_props,
	ZPOOL_ROOTFS_PROPS, zc_fsprops) != 0) {
	goto create_failed;
	}
	if (wkeydata != NULL) {
	if (nvlist_alloc(&hidden_args, NV_UNIQUE_NAME, 0) != 0)
	goto create_failed;

	if (nvlist_add_uint8_array(hidden_args, "wkeydata",
	wkeydata, wkeylen) != 0)
	goto create_failed;

	if (nvlist_add_nvlist(zc_props, ZPOOL_HIDDEN_ARGS,
	hidden_args) != 0)
	goto create_failed;
	}
	}

	if (zc_props && zcmd_write_src_nvlist(hdl, &zc, zc_props) != 0)
	goto create_failed;

	(void) strlcpy(zc.zc_name, pool, sizeof (zc.zc_name));

	if ((ret = zfs_ioctl(hdl, ZFS_IOC_POOL_CREATE, &zc)) != 0) {

	zcmd_free_nvlists(&zc);
	nvlist_free(zc_props);
	nvlist_free(zc_fsprops);
	nvlist_free(hidden_args);
	if (wkeydata != NULL)
	free(wkeydata);

	switch (errno) {
	case EBUSY:
	/*
	* This can happen if the user has specified the same
	* device multiple times. We can't reliably detect this
	* until we try to add it and see we already have a
	* label. This can also happen under if the device is
	* part of an active md or lvm device.
	*/
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"one or more vdevs refer to the same device, or "
	"one of\nthe devices is part of an active md or "
	"lvm device"));
	return (zfs_error(hdl, EZFS_BADDEV, msg));

	case ERANGE:
	/*
	* This happens if the record size is smaller or larger
	* than the allowed size range, or not a power of 2.
	*
	* NOTE: although zfs_valid_proplist is called earlier,
	* this case may have slipped through since the
	* pool does not exist yet and it is therefore
	* impossible to read properties e.g. max blocksize
	* from the pool.
	*/
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"record size invalid"));
	return (zfs_error(hdl, EZFS_BADPROP, msg));

	case EOVERFLOW:
	/*
	* This occurs when one of the devices is below
	* SPA_MINDEVSIZE. Unfortunately, we can't detect which
	* device was the problem device since there's no
	* reliable way to determine device size from userland.
	*/
	{
	char buf[64];

	zfs_nicebytes(SPA_MINDEVSIZE, buf,
	sizeof (buf));

	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"one or more devices is less than the "
	"minimum size (%s)"), buf);
	}
	return (zfs_error(hdl, EZFS_BADDEV, msg));

	case ENOSPC:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"one or more devices is out of space"));
	return (zfs_error(hdl, EZFS_BADDEV, msg));

	case EINVAL:
	if (zpool_has_draid_vdev(nvroot) &&
	zfeature_lookup_name("draid", NULL) != 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"dRAID vdevs are unsupported by the "
	"kernel"));
	return (zfs_error(hdl, EZFS_BADDEV, msg));
	} else {
	return (zpool_standard_error(hdl, errno, msg));
	}

	default:
	return (zpool_standard_error(hdl, errno, msg));
	}
	}

	create_failed:
	zcmd_free_nvlists(&zc);
	nvlist_free(zc_props);
	nvlist_free(zc_fsprops);
	nvlist_free(hidden_args);
	if (wkeydata != NULL)
	free(wkeydata);
	return (ret);
	}

	/*
	* Destroy the given pool. It is up to the caller to ensure that there are no
	* datasets left in the pool.
	*/
	int
	zpool_destroy(zpool_handle_t zhp, const char log_str)
	{
	zfs_cmd_t zc = {"\0"};
	zfs_handle_t *zfp = NULL;
	libzfs_handle_t *hdl = zhp->zpool_hdl;
	char msg[1024];

	if (zhp->zpool_state == POOL_STATE_ACTIVE &&
	(zfp = zfs_open(hdl, zhp->zpool_name, ZFS_TYPE_FILESYSTEM)) == NULL)
	return (-1);

	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
	zc.zc_history = (uint64_t)(uintptr_t)log_str;

	if (zfs_ioctl(hdl, ZFS_IOC_POOL_DESTROY, &zc) != 0) {
	(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
	"cannot destroy '%s'"), zhp->zpool_name);

	if (errno == EROFS) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"one or more devices is read only"));
	(void) zfs_error(hdl, EZFS_BADDEV, msg);
	} else {
	(void) zpool_standard_error(hdl, errno, msg);
	}

	if (zfp)
	zfs_close(zfp);
	return (-1);
	}

	if (zfp) {
	remove_mountpoint(zfp);
	zfs_close(zfp);
	}

	return (0);
	}

	/*
	* Create a checkpoint in the given pool.
	*/
	int
	zpool_checkpoint(zpool_handle_t *zhp)
	{
	libzfs_handle_t *hdl = zhp->zpool_hdl;
	char msg[1024];
	int error;

	error = lzc_pool_checkpoint(zhp->zpool_name);
	if (error != 0) {
	(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
	"cannot checkpoint '%s'"), zhp->zpool_name);
	(void) zpool_standard_error(hdl, error, msg);
	return (-1);
	}

	return (0);
	}

	/*
	* Discard the checkpoint from the given pool.
	*/
	int
	zpool_discard_checkpoint(zpool_handle_t *zhp)
	{
	libzfs_handle_t *hdl = zhp->zpool_hdl;
	char msg[1024];
	int error;

	error = lzc_pool_checkpoint_discard(zhp->zpool_name);
	if (error != 0) {
	(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
	"cannot discard checkpoint in '%s'"), zhp->zpool_name);
	(void) zpool_standard_error(hdl, error, msg);
	return (-1);
	}

	return (0);
	}

	/*
	* Add the given vdevs to the pool. The caller must have already performed the
	* necessary verification to ensure that the vdev specification is well-formed.
	*/
	int
	zpool_add(zpool_handle_t zhp, nvlist_t nvroot)
	{
	zfs_cmd_t zc = {"\0"};
	int ret;
	libzfs_handle_t *hdl = zhp->zpool_hdl;
	char msg[1024];
	nvlist_t spares, l2cache;
	uint_t nspares, nl2cache;

	(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
	"cannot add to '%s'"), zhp->zpool_name);

	if (zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL) <
	SPA_VERSION_SPARES &&
	nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
	&spares, &nspares) == 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool must be "
	"upgraded to add hot spares"));
	return (zfs_error(hdl, EZFS_BADVERSION, msg));
	}

	if (zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL) <
	SPA_VERSION_L2CACHE &&
	nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
	&l2cache, &nl2cache) == 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool must be "
	"upgraded to add cache devices"));
	return (zfs_error(hdl, EZFS_BADVERSION, msg));
	}

	if (zcmd_write_conf_nvlist(hdl, &zc, nvroot) != 0)
	return (-1);
	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));

	if (zfs_ioctl(hdl, ZFS_IOC_VDEV_ADD, &zc) != 0) {
	switch (errno) {
	case EBUSY:
	/*
	* This can happen if the user has specified the same
	* device multiple times. We can't reliably detect this
	* until we try to add it and see we already have a
	* label.
	*/
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"one or more vdevs refer to the same device"));
	(void) zfs_error(hdl, EZFS_BADDEV, msg);
	break;

	case EINVAL:

	if (zpool_has_draid_vdev(nvroot) &&
	zfeature_lookup_name("draid", NULL) != 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"dRAID vdevs are unsupported by the "
	"kernel"));
	} else {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"invalid config; a pool with removing/"
	"removed vdevs does not support adding "
	"raidz or dRAID vdevs"));
	}

	(void) zfs_error(hdl, EZFS_BADDEV, msg);
	break;

	case EOVERFLOW:
	/*
	* This occurs when one of the devices is below
	* SPA_MINDEVSIZE. Unfortunately, we can't detect which
	* device was the problem device since there's no
	* reliable way to determine device size from userland.
	*/
	{
	char buf[64];

	zfs_nicebytes(SPA_MINDEVSIZE, buf,
	sizeof (buf));

	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"device is less than the minimum "
	"size (%s)"), buf);
	}
	(void) zfs_error(hdl, EZFS_BADDEV, msg);
	break;

	case ENOTSUP:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"pool must be upgraded to add these vdevs"));
	(void) zfs_error(hdl, EZFS_BADVERSION, msg);
	break;

	default:
	(void) zpool_standard_error(hdl, errno, msg);
	}

	ret = -1;
	} else {
	ret = 0;
	}

	zcmd_free_nvlists(&zc);

	return (ret);
	}

	/*
	* Exports the pool from the system. The caller must ensure that there are no
	* mounted datasets in the pool.
	*/
	static int
	zpool_export_common(zpool_handle_t *zhp, boolean_t force, boolean_t hardforce,
	const char *log_str)
	{
	zfs_cmd_t zc = {"\0"};

	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
	zc.zc_cookie = force;
	zc.zc_guid = hardforce;
	zc.zc_history = (uint64_t)(uintptr_t)log_str;

	if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_POOL_EXPORT, &zc) != 0) {
	switch (errno) {
	case EXDEV:
	zfs_error_aux(zhp->zpool_hdl, dgettext(TEXT_DOMAIN,
	"use '-f' to override the following errors:\n"
	"'%s' has an active shared spare which could be"
	" used by other pools once '%s' is exported."),
	zhp->zpool_name, zhp->zpool_name);
	return (zfs_error_fmt(zhp->zpool_hdl, EZFS_ACTIVE_SPARE,
	dgettext(TEXT_DOMAIN, "cannot export '%s'"),
	zhp->zpool_name));
	default:
	return (zpool_standard_error_fmt(zhp->zpool_hdl, errno,
	dgettext(TEXT_DOMAIN, "cannot export '%s'"),
	zhp->zpool_name));
	}
	}

	return (0);
	}

	int
	zpool_export(zpool_handle_t zhp, boolean_t force, const char log_str)
	{
	return (zpool_export_common(zhp, force, B_FALSE, log_str));
	}

	int
	zpool_export_force(zpool_handle_t zhp, const char log_str)
	{
	return (zpool_export_common(zhp, B_TRUE, B_TRUE, log_str));
	}

	static void
	zpool_rewind_exclaim(libzfs_handle_t hdl, const char name, boolean_t dryrun,
	nvlist_t *config)
	{
	nvlist_t *nv = NULL;
	uint64_t rewindto;
	int64_t loss = -1;
	struct tm t;
	char timestr[128];

	if (!hdl->libzfs_printerr \|\| config == NULL)
	return;

	if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO, &nv) != 0 \|\|
	nvlist_lookup_nvlist(nv, ZPOOL_CONFIG_REWIND_INFO, &nv) != 0) {
	return;
	}

	if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_LOAD_TIME, &rewindto) != 0)
	return;
	(void) nvlist_lookup_int64(nv, ZPOOL_CONFIG_REWIND_TIME, &loss);

	if (localtime_r((time_t *)&rewindto, &t) != NULL &&
	strftime(timestr, 128, "%c", &t) != 0) {
	if (dryrun) {
	(void) printf(dgettext(TEXT_DOMAIN,
	"Would be able to return %s "
	"to its state as of %s.\n"),
	name, timestr);
	} else {
	(void) printf(dgettext(TEXT_DOMAIN,
	"Pool %s returned to its state as of %s.\n"),
	name, timestr);
	}
	if (loss > 120) {
	(void) printf(dgettext(TEXT_DOMAIN,
	"%s approximately %lld "),
	dryrun ? "Would discard" : "Discarded",
	((longlong_t)loss + 30) / 60);
	(void) printf(dgettext(TEXT_DOMAIN,
	"minutes of transactions.\n"));
	} else if (loss > 0) {
	(void) printf(dgettext(TEXT_DOMAIN,
	"%s approximately %lld "),
	dryrun ? "Would discard" : "Discarded",
	(longlong_t)loss);
	(void) printf(dgettext(TEXT_DOMAIN,
	"seconds of transactions.\n"));
	}
	}
	}

	void
	zpool_explain_recover(libzfs_handle_t hdl, const char name, int reason,
	nvlist_t *config)
	{
	nvlist_t *nv = NULL;
	int64_t loss = -1;
	uint64_t edata = UINT64_MAX;
	uint64_t rewindto;
	struct tm t;
	char timestr[128];

	if (!hdl->libzfs_printerr)
	return;

	if (reason >= 0)
	(void) printf(dgettext(TEXT_DOMAIN, "action: "));
	else
	(void) printf(dgettext(TEXT_DOMAIN, "\t"));

	/* All attempted rewinds failed if ZPOOL_CONFIG_LOAD_TIME missing */
	if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO, &nv) != 0 \|\|
	nvlist_lookup_nvlist(nv, ZPOOL_CONFIG_REWIND_INFO, &nv) != 0 \|\|
	nvlist_lookup_uint64(nv, ZPOOL_CONFIG_LOAD_TIME, &rewindto) != 0)
	goto no_info;

	(void) nvlist_lookup_int64(nv, ZPOOL_CONFIG_REWIND_TIME, &loss);
	(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_LOAD_DATA_ERRORS,
	&edata);

	(void) printf(dgettext(TEXT_DOMAIN,
	"Recovery is possible, but will result in some data loss.\n"));

	if (localtime_r((time_t *)&rewindto, &t) != NULL &&
	strftime(timestr, 128, "%c", &t) != 0) {
	(void) printf(dgettext(TEXT_DOMAIN,
	"\tReturning the pool to its state as of %s\n"
	"\tshould correct the problem. "),
	timestr);
	} else {
	(void) printf(dgettext(TEXT_DOMAIN,
	"\tReverting the pool to an earlier state "
	"should correct the problem.\n\t"));
	}

	if (loss > 120) {
	(void) printf(dgettext(TEXT_DOMAIN,
	"Approximately %lld minutes of data\n"
	"\tmust be discarded, irreversibly. "),
	((longlong_t)loss + 30) / 60);
	} else if (loss > 0) {
	(void) printf(dgettext(TEXT_DOMAIN,
	"Approximately %lld seconds of data\n"
	"\tmust be discarded, irreversibly. "),
	(longlong_t)loss);
	}
	if (edata != 0 && edata != UINT64_MAX) {
	if (edata == 1) {
	(void) printf(dgettext(TEXT_DOMAIN,
	"After rewind, at least\n"
	"\tone persistent user-data error will remain. "));
	} else {
	(void) printf(dgettext(TEXT_DOMAIN,
	"After rewind, several\n"
	"\tpersistent user-data errors will remain. "));
	}
	}
	(void) printf(dgettext(TEXT_DOMAIN,
	"Recovery can be attempted\n\tby executing 'zpool %s -F %s'. "),
	reason >= 0 ? "clear" : "import", name);

	(void) printf(dgettext(TEXT_DOMAIN,
	"A scrub of the pool\n"
	"\tis strongly recommended after recovery.\n"));
	return;

	no_info:
	(void) printf(dgettext(TEXT_DOMAIN,
	"Destroy and re-create the pool from\n\ta backup source.\n"));
	}

	/*
	* zpool_import() is a contracted interface. Should be kept the same
	* if possible.
	*
	* Applications should use zpool_import_props() to import a pool with
	* new properties value to be set.
	*/
	int
	zpool_import(libzfs_handle_t hdl, nvlist_t config, const char *newname,
	char *altroot)
	{
	nvlist_t *props = NULL;
	int ret;

	if (altroot != NULL) {
	if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) {
	return (zfs_error_fmt(hdl, EZFS_NOMEM,
	dgettext(TEXT_DOMAIN, "cannot import '%s'"),
	newname));
	}

	if (nvlist_add_string(props,
	zpool_prop_to_name(ZPOOL_PROP_ALTROOT), altroot) != 0 \|\|
	nvlist_add_string(props,
	zpool_prop_to_name(ZPOOL_PROP_CACHEFILE), "none") != 0) {
	nvlist_free(props);
	return (zfs_error_fmt(hdl, EZFS_NOMEM,
	dgettext(TEXT_DOMAIN, "cannot import '%s'"),
	newname));
	}
	}

	ret = zpool_import_props(hdl, config, newname, props,
	ZFS_IMPORT_NORMAL);
	nvlist_free(props);
	return (ret);
	}

	static void
	print_vdev_tree(libzfs_handle_t hdl, const char name, nvlist_t *nv,
	int indent)
	{
	nvlist_t **child;
	uint_t c, children;
	char *vname;
	uint64_t is_log = 0;

	(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG,
	&is_log);

	if (name != NULL)
	(void) printf("\t%*s%s%s\n", indent, "", name,
	is_log ? " [log]" : "");

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
	&child, &children) != 0)
	return;

	for (c = 0; c < children; c++) {
	vname = zpool_vdev_name(hdl, NULL, child[c], VDEV_NAME_TYPE_ID);
	print_vdev_tree(hdl, vname, child[c], indent + 2);
	free(vname);
	}
	}

	void
	zpool_print_unsup_feat(nvlist_t *config)
	{
	nvlist_t nvinfo, unsup_feat;
	nvpair_t *nvp;

	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO, &nvinfo) ==
	0);
	verify(nvlist_lookup_nvlist(nvinfo, ZPOOL_CONFIG_UNSUP_FEAT,
	&unsup_feat) == 0);

	for (nvp = nvlist_next_nvpair(unsup_feat, NULL); nvp != NULL;
	nvp = nvlist_next_nvpair(unsup_feat, nvp)) {
	char *desc;

	verify(nvpair_type(nvp) == DATA_TYPE_STRING);
	verify(nvpair_value_string(nvp, &desc) == 0);

	if (strlen(desc) > 0)
	(void) printf("\t%s (%s)\n", nvpair_name(nvp), desc);
	else
	(void) printf("\t%s\n", nvpair_name(nvp));
	}
	}

	/*
	* Import the given pool using the known configuration and a list of
	* properties to be set. The configuration should have come from
	* zpool_find_import(). The 'newname' parameters control whether the pool
	* is imported with a different name.
	*/
	int
	zpool_import_props(libzfs_handle_t hdl, nvlist_t config, const char *newname,
	nvlist_t *props, int flags)
	{
	zfs_cmd_t zc = {"\0"};
	zpool_load_policy_t policy;
	nvlist_t *nv = NULL;
	nvlist_t *nvinfo = NULL;
	nvlist_t *missing = NULL;
	char *thename;
	char *origname;
	int ret;
	int error = 0;
	char errbuf[1024];

	verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
	&origname) == 0);

	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
	"cannot import pool '%s'"), origname);

	if (newname != NULL) {
	if (!zpool_name_valid(hdl, B_FALSE, newname))
	return (zfs_error_fmt(hdl, EZFS_INVALIDNAME,
	dgettext(TEXT_DOMAIN, "cannot import '%s'"),
	newname));
	thename = (char *)newname;
	} else {
	thename = origname;
	}

	if (props != NULL) {
	uint64_t version;
	prop_flags_t flags = { .create = B_FALSE, .import = B_TRUE };

	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
	&version) == 0);

	if ((props = zpool_valid_proplist(hdl, origname,
	props, version, flags, errbuf)) == NULL)
	return (-1);
	if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) {
	nvlist_free(props);
	return (-1);
	}
	nvlist_free(props);
	}

	(void) strlcpy(zc.zc_name, thename, sizeof (zc.zc_name));

	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
	&zc.zc_guid) == 0);

	if (zcmd_write_conf_nvlist(hdl, &zc, config) != 0) {
	zcmd_free_nvlists(&zc);
	return (-1);
	}
	if (zcmd_alloc_dst_nvlist(hdl, &zc, zc.zc_nvlist_conf_size * 2) != 0) {
	zcmd_free_nvlists(&zc);
	return (-1);
	}

	zc.zc_cookie = flags;
	while ((ret = zfs_ioctl(hdl, ZFS_IOC_POOL_IMPORT, &zc)) != 0 &&
	errno == ENOMEM) {
	if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) {
	zcmd_free_nvlists(&zc);
	return (-1);
	}
	}
	if (ret != 0)
	error = errno;

	(void) zcmd_read_dst_nvlist(hdl, &zc, &nv);

	zcmd_free_nvlists(&zc);

	zpool_get_load_policy(config, &policy);

	if (error) {
	char desc[1024];
	char aux[256];

	/*
	* Dry-run failed, but we print out what success
	* looks like if we found a best txg
	*/
	if (policy.zlp_rewind & ZPOOL_TRY_REWIND) {
	zpool_rewind_exclaim(hdl, newname ? origname : thename,
	B_TRUE, nv);
	nvlist_free(nv);
	return (-1);
	}

	if (newname == NULL)
	(void) snprintf(desc, sizeof (desc),
	dgettext(TEXT_DOMAIN, "cannot import '%s'"),
	thename);
	else
	(void) snprintf(desc, sizeof (desc),
	dgettext(TEXT_DOMAIN, "cannot import '%s' as '%s'"),
	origname, thename);

	switch (error) {
	case ENOTSUP:
	if (nv != NULL && nvlist_lookup_nvlist(nv,
	ZPOOL_CONFIG_LOAD_INFO, &nvinfo) == 0 &&
	nvlist_exists(nvinfo, ZPOOL_CONFIG_UNSUP_FEAT)) {
	(void) printf(dgettext(TEXT_DOMAIN, "This "
	"pool uses the following feature(s) not "
	"supported by this system:\n"));
	zpool_print_unsup_feat(nv);
	if (nvlist_exists(nvinfo,
	ZPOOL_CONFIG_CAN_RDONLY)) {
	(void) printf(dgettext(TEXT_DOMAIN,
	"All unsupported features are only "
	"required for writing to the pool."
	"\nThe pool can be imported using "
	"'-o readonly=on'.\n"));
	}
	}
	/*
	* Unsupported version.
	*/
	(void) zfs_error(hdl, EZFS_BADVERSION, desc);
	break;

	case EREMOTEIO:
	if (nv != NULL && nvlist_lookup_nvlist(nv,
	ZPOOL_CONFIG_LOAD_INFO, &nvinfo) == 0) {
	char *hostname = "<unknown>";
	uint64_t hostid = 0;
	mmp_state_t mmp_state;

	mmp_state = fnvlist_lookup_uint64(nvinfo,
	ZPOOL_CONFIG_MMP_STATE);

	if (nvlist_exists(nvinfo,
	ZPOOL_CONFIG_MMP_HOSTNAME))
	hostname = fnvlist_lookup_string(nvinfo,
	ZPOOL_CONFIG_MMP_HOSTNAME);

	if (nvlist_exists(nvinfo,
	ZPOOL_CONFIG_MMP_HOSTID))
	hostid = fnvlist_lookup_uint64(nvinfo,
	ZPOOL_CONFIG_MMP_HOSTID);

	if (mmp_state == MMP_STATE_ACTIVE) {
	(void) snprintf(aux, sizeof (aux),
	dgettext(TEXT_DOMAIN, "pool is imp"
	"orted on host '%s' (hostid=%lx).\n"
	"Export the pool on the other "
	"system, then run 'zpool import'."),
	hostname, (unsigned long) hostid);
	} else if (mmp_state == MMP_STATE_NO_HOSTID) {
	(void) snprintf(aux, sizeof (aux),
	dgettext(TEXT_DOMAIN, "pool has "
	"the multihost property on and "
	"the\nsystem's hostid is not set. "
	"Set a unique system hostid with "
	"the zgenhostid(8) command.\n"));
	}

	(void) zfs_error_aux(hdl, "%s", aux);
	}
	(void) zfs_error(hdl, EZFS_ACTIVE_POOL, desc);
	break;

	case EINVAL:
	(void) zfs_error(hdl, EZFS_INVALCONFIG, desc);
	break;

	case EROFS:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"one or more devices is read only"));
	(void) zfs_error(hdl, EZFS_BADDEV, desc);
	break;

	case ENXIO:
	if (nv && nvlist_lookup_nvlist(nv,
	ZPOOL_CONFIG_LOAD_INFO, &nvinfo) == 0 &&
	nvlist_lookup_nvlist(nvinfo,
	ZPOOL_CONFIG_MISSING_DEVICES, &missing) == 0) {
	(void) printf(dgettext(TEXT_DOMAIN,
	"The devices below are missing or "
	"corrupted, use '-m' to import the pool "
	"anyway:\n"));
	print_vdev_tree(hdl, NULL, missing, 2);
	(void) printf("\n");
	}
	(void) zpool_standard_error(hdl, error, desc);
	break;

	case EEXIST:
	(void) zpool_standard_error(hdl, error, desc);
	break;

	case EBUSY:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"one or more devices are already in use\n"));
	(void) zfs_error(hdl, EZFS_BADDEV, desc);
	break;
	case ENAMETOOLONG:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"new name of at least one dataset is longer than "
	"the maximum allowable length"));
	(void) zfs_error(hdl, EZFS_NAMETOOLONG, desc);
	break;
	default:
	(void) zpool_standard_error(hdl, error, desc);
	zpool_explain_recover(hdl,
	newname ? origname : thename, -error, nv);
	break;
	}

	nvlist_free(nv);
	ret = -1;
	} else {
	zpool_handle_t *zhp;

	/*
	* This should never fail, but play it safe anyway.
	*/
	if (zpool_open_silent(hdl, thename, &zhp) != 0)
	ret = -1;
	else if (zhp != NULL)
	zpool_close(zhp);
	if (policy.zlp_rewind &
	(ZPOOL_DO_REWIND \| ZPOOL_TRY_REWIND)) {
	zpool_rewind_exclaim(hdl, newname ? origname : thename,
	((policy.zlp_rewind & ZPOOL_TRY_REWIND) != 0), nv);
	}
	nvlist_free(nv);
	return (0);
	}

	return (ret);
	}

	/*
	* Translate vdev names to guids. If a vdev_path is determined to be
	* unsuitable then a vd_errlist is allocated and the vdev path and errno
	* are added to it.
	*/
	static int
	zpool_translate_vdev_guids(zpool_handle_t zhp, nvlist_t vds,
	nvlist_t vdev_guids, nvlist_t guids_to_paths, nvlist_t **vd_errlist)
	{
	nvlist_t *errlist = NULL;
	int error = 0;

	for (nvpair_t *elem = nvlist_next_nvpair(vds, NULL); elem != NULL;
	elem = nvlist_next_nvpair(vds, elem)) {
	boolean_t spare, cache;

	char *vd_path = nvpair_name(elem);
	nvlist_t *tgt = zpool_find_vdev(zhp, vd_path, &spare, &cache,
	NULL);

	if ((tgt == NULL) \|\| cache \|\| spare) {
	if (errlist == NULL) {
	errlist = fnvlist_alloc();
	error = EINVAL;
	}

	uint64_t err = (tgt == NULL) ? EZFS_NODEVICE :
	(spare ? EZFS_ISSPARE : EZFS_ISL2CACHE);
	fnvlist_add_int64(errlist, vd_path, err);
	continue;
	}

	uint64_t guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID);
	fnvlist_add_uint64(vdev_guids, vd_path, guid);

	char msg[MAXNAMELEN];
	(void) snprintf(msg, sizeof (msg), "%llu", (u_longlong_t)guid);
	fnvlist_add_string(guids_to_paths, msg, vd_path);
	}

	if (error != 0) {
	verify(errlist != NULL);
	if (vd_errlist != NULL)
	*vd_errlist = errlist;
	else
	fnvlist_free(errlist);
	}

	return (error);
	}

	static int
	xlate_init_err(int err)
	{
	switch (err) {
	case ENODEV:
	return (EZFS_NODEVICE);
	case EINVAL:
	case EROFS:
	return (EZFS_BADDEV);
	case EBUSY:
	return (EZFS_INITIALIZING);
	case ESRCH:
	return (EZFS_NO_INITIALIZE);
	}
	return (err);
	}

	/*
	* Begin, suspend, or cancel the initialization (initializing of all free
	* blocks) for the given vdevs in the given pool.
	*/
	static int
	zpool_initialize_impl(zpool_handle_t *zhp, pool_initialize_func_t cmd_type,
	nvlist_t *vds, boolean_t wait)
	{
	int err;

	nvlist_t *vdev_guids = fnvlist_alloc();
	nvlist_t *guids_to_paths = fnvlist_alloc();
	nvlist_t *vd_errlist = NULL;
	nvlist_t *errlist;
	nvpair_t *elem;

	err = zpool_translate_vdev_guids(zhp, vds, vdev_guids,
	guids_to_paths, &vd_errlist);

	if (err != 0) {
	verify(vd_errlist != NULL);
	goto list_errors;
	}

	err = lzc_initialize(zhp->zpool_name, cmd_type,
	vdev_guids, &errlist);

	if (err != 0) {
	if (errlist != NULL) {
	vd_errlist = fnvlist_lookup_nvlist(errlist,
	ZPOOL_INITIALIZE_VDEVS);
	goto list_errors;
	}
	(void) zpool_standard_error(zhp->zpool_hdl, err,
	dgettext(TEXT_DOMAIN, "operation failed"));
	goto out;
	}

	if (wait) {
	for (elem = nvlist_next_nvpair(vdev_guids, NULL); elem != NULL;
	elem = nvlist_next_nvpair(vdev_guids, elem)) {

	uint64_t guid = fnvpair_value_uint64(elem);

	err = lzc_wait_tag(zhp->zpool_name,
	ZPOOL_WAIT_INITIALIZE, guid, NULL);
	if (err != 0) {
	(void) zpool_standard_error_fmt(zhp->zpool_hdl,
	err, dgettext(TEXT_DOMAIN, "error "
	"waiting for '%s' to initialize"),
	nvpair_name(elem));

	goto out;
	}
	}
	}
	goto out;

	list_errors:
	for (elem = nvlist_next_nvpair(vd_errlist, NULL); elem != NULL;
	elem = nvlist_next_nvpair(vd_errlist, elem)) {
	int64_t vd_error = xlate_init_err(fnvpair_value_int64(elem));
	char *path;

	if (nvlist_lookup_string(guids_to_paths, nvpair_name(elem),
	&path) != 0)
	path = nvpair_name(elem);

	(void) zfs_error_fmt(zhp->zpool_hdl, vd_error,
	"cannot initialize '%s'", path);
	}

	out:
	fnvlist_free(vdev_guids);
	fnvlist_free(guids_to_paths);

	if (vd_errlist != NULL)
	fnvlist_free(vd_errlist);

	return (err == 0 ? 0 : -1);
	}

	int
	zpool_initialize(zpool_handle_t *zhp, pool_initialize_func_t cmd_type,
	nvlist_t *vds)
	{
	return (zpool_initialize_impl(zhp, cmd_type, vds, B_FALSE));
	}

	int
	zpool_initialize_wait(zpool_handle_t *zhp, pool_initialize_func_t cmd_type,
	nvlist_t *vds)
	{
	return (zpool_initialize_impl(zhp, cmd_type, vds, B_TRUE));
	}

	static int
	xlate_trim_err(int err)
	{
	switch (err) {
	case ENODEV:
	return (EZFS_NODEVICE);
	case EINVAL:
	case EROFS:
	return (EZFS_BADDEV);
	case EBUSY:
	return (EZFS_TRIMMING);
	case ESRCH:
	return (EZFS_NO_TRIM);
	case EOPNOTSUPP:
	return (EZFS_TRIM_NOTSUP);
	}
	return (err);
	}

	static int
	zpool_trim_wait(zpool_handle_t zhp, nvlist_t vdev_guids)
	{
	int err;
	nvpair_t *elem;

	for (elem = nvlist_next_nvpair(vdev_guids, NULL); elem != NULL;
	elem = nvlist_next_nvpair(vdev_guids, elem)) {

	uint64_t guid = fnvpair_value_uint64(elem);

	err = lzc_wait_tag(zhp->zpool_name,
	ZPOOL_WAIT_TRIM, guid, NULL);
	if (err != 0) {
	(void) zpool_standard_error_fmt(zhp->zpool_hdl,
	err, dgettext(TEXT_DOMAIN, "error "
	"waiting to trim '%s'"), nvpair_name(elem));

	return (err);
	}
	}
	return (0);
	}

	/*
	* Check errlist and report any errors, omitting ones which should be
	* suppressed. Returns B_TRUE if any errors were reported.
	*/
	static boolean_t
	check_trim_errs(zpool_handle_t zhp, trimflags_t trim_flags,
	nvlist_t guids_to_paths, nvlist_t vds, nvlist_t *errlist)
	{
	nvpair_t *elem;
	boolean_t reported_errs = B_FALSE;
	int num_vds = 0;
	int num_suppressed_errs = 0;

	for (elem = nvlist_next_nvpair(vds, NULL);
	elem != NULL; elem = nvlist_next_nvpair(vds, elem)) {
	num_vds++;
	}

	for (elem = nvlist_next_nvpair(errlist, NULL);
	elem != NULL; elem = nvlist_next_nvpair(errlist, elem)) {
	int64_t vd_error = xlate_trim_err(fnvpair_value_int64(elem));
	char *path;

	/*
	* If only the pool was specified, and it was not a secure
	* trim then suppress warnings for individual vdevs which
	* do not support trimming.
	*/
	if (vd_error == EZFS_TRIM_NOTSUP &&
	trim_flags->fullpool &&
	!trim_flags->secure) {
	num_suppressed_errs++;
	continue;
	}

	reported_errs = B_TRUE;
	if (nvlist_lookup_string(guids_to_paths, nvpair_name(elem),
	&path) != 0)
	path = nvpair_name(elem);

	(void) zfs_error_fmt(zhp->zpool_hdl, vd_error,
	"cannot trim '%s'", path);
	}

	if (num_suppressed_errs == num_vds) {
	(void) zfs_error_aux(zhp->zpool_hdl, dgettext(TEXT_DOMAIN,
	"no devices in pool support trim operations"));
	(void) (zfs_error(zhp->zpool_hdl, EZFS_TRIM_NOTSUP,
	dgettext(TEXT_DOMAIN, "cannot trim")));
	reported_errs = B_TRUE;
	}

	return (reported_errs);
	}

	/*
	* Begin, suspend, or cancel the TRIM (discarding of all free blocks) for
	* the given vdevs in the given pool.
	*/
	int
	zpool_trim(zpool_handle_t zhp, pool_trim_func_t cmd_type, nvlist_t vds,
	trimflags_t *trim_flags)
	{
	int err;
	int retval = 0;

	nvlist_t *vdev_guids = fnvlist_alloc();
	nvlist_t *guids_to_paths = fnvlist_alloc();
	nvlist_t *errlist = NULL;

	err = zpool_translate_vdev_guids(zhp, vds, vdev_guids,
	guids_to_paths, &errlist);
	if (err != 0) {
	check_trim_errs(zhp, trim_flags, guids_to_paths, vds, errlist);
	retval = -1;
	goto out;
	}

	err = lzc_trim(zhp->zpool_name, cmd_type, trim_flags->rate,
	trim_flags->secure, vdev_guids, &errlist);
	if (err != 0) {
	nvlist_t *vd_errlist;
	if (errlist != NULL && nvlist_lookup_nvlist(errlist,
	ZPOOL_TRIM_VDEVS, &vd_errlist) == 0) {
	if (check_trim_errs(zhp, trim_flags, guids_to_paths,
	vds, vd_errlist)) {
	retval = -1;
	goto out;
	}
	} else {
	char msg[1024];

	(void) snprintf(msg, sizeof (msg),
	dgettext(TEXT_DOMAIN, "operation failed"));
	zpool_standard_error(zhp->zpool_hdl, err, msg);
	retval = -1;
	goto out;
	}
	}


	if (trim_flags->wait)
	retval = zpool_trim_wait(zhp, vdev_guids);

	out:
	if (errlist != NULL)
	fnvlist_free(errlist);
	fnvlist_free(vdev_guids);
	fnvlist_free(guids_to_paths);
	return (retval);
	}

	/*
	* Scan the pool.
	*/
	int
	zpool_scan(zpool_handle_t *zhp, pool_scan_func_t func, pool_scrub_cmd_t cmd)
	{
	zfs_cmd_t zc = {"\0"};
	char msg[1024];
	int err;
	libzfs_handle_t *hdl = zhp->zpool_hdl;

	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
	zc.zc_cookie = func;
	zc.zc_flags = cmd;

	if (zfs_ioctl(hdl, ZFS_IOC_POOL_SCAN, &zc) == 0)
	return (0);

	err = errno;

	/* ECANCELED on a scrub means we resumed a paused scrub */
	if (err == ECANCELED && func == POOL_SCAN_SCRUB &&
	cmd == POOL_SCRUB_NORMAL)
	return (0);

	if (err == ENOENT && func != POOL_SCAN_NONE && cmd == POOL_SCRUB_NORMAL)
	return (0);

	if (func == POOL_SCAN_SCRUB) {
	if (cmd == POOL_SCRUB_PAUSE) {
	(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
	"cannot pause scrubbing %s"), zc.zc_name);
	} else {
	assert(cmd == POOL_SCRUB_NORMAL);
	(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
	"cannot scrub %s"), zc.zc_name);
	}
	} else if (func == POOL_SCAN_RESILVER) {
	assert(cmd == POOL_SCRUB_NORMAL);
	(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
	"cannot restart resilver on %s"), zc.zc_name);
	} else if (func == POOL_SCAN_NONE) {
	(void) snprintf(msg, sizeof (msg),
	dgettext(TEXT_DOMAIN, "cannot cancel scrubbing %s"),
	zc.zc_name);
	} else {
	assert(!"unexpected result");
	}

	if (err == EBUSY) {
	nvlist_t *nvroot;
	pool_scan_stat_t *ps = NULL;
	uint_t psc;

	verify(nvlist_lookup_nvlist(zhp->zpool_config,
	ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0);
	(void) nvlist_lookup_uint64_array(nvroot,
	ZPOOL_CONFIG_SCAN_STATS, (uint64_t **)&ps, &psc);
	if (ps && ps->pss_func == POOL_SCAN_SCRUB &&
	ps->pss_state == DSS_SCANNING) {
	if (cmd == POOL_SCRUB_PAUSE)
	return (zfs_error(hdl, EZFS_SCRUB_PAUSED, msg));
	else
	return (zfs_error(hdl, EZFS_SCRUBBING, msg));
	} else {
	return (zfs_error(hdl, EZFS_RESILVERING, msg));
	}
	} else if (err == ENOENT) {
	return (zfs_error(hdl, EZFS_NO_SCRUB, msg));
	} else if (err == ENOTSUP && func == POOL_SCAN_RESILVER) {
	return (zfs_error(hdl, EZFS_NO_RESILVER_DEFER, msg));
	} else {
	return (zpool_standard_error(hdl, err, msg));
	}
	}

	/*
	* Find a vdev that matches the search criteria specified. We use the
	* the nvpair name to determine how we should look for the device.
	* 'avail_spare' is set to TRUE if the provided guid refers to an AVAIL
	* spare; but FALSE if its an INUSE spare.
	*/
	static nvlist_t *
	vdev_to_nvlist_iter(nvlist_t nv, nvlist_t search, boolean_t *avail_spare,
	boolean_t l2cache, boolean_t log)
	{
	uint_t c, children;
	nvlist_t **child;
	nvlist_t *ret;
	uint64_t is_log;
	char *srchkey;
	nvpair_t *pair = nvlist_next_nvpair(search, NULL);

	/* Nothing to look for */
	if (search == NULL \|\| pair == NULL)
	return (NULL);

	/* Obtain the key we will use to search */
	srchkey = nvpair_name(pair);

	switch (nvpair_type(pair)) {
	case DATA_TYPE_UINT64:
	if (strcmp(srchkey, ZPOOL_CONFIG_GUID) == 0) {
	uint64_t srchval, theguid;

	verify(nvpair_value_uint64(pair, &srchval) == 0);
	verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID,
	&theguid) == 0);
	if (theguid == srchval)
	return (nv);
	}
	break;

	case DATA_TYPE_STRING: {
	char srchval, val;

	verify(nvpair_value_string(pair, &srchval) == 0);
	if (nvlist_lookup_string(nv, srchkey, &val) != 0)
	break;

	/*
	* Search for the requested value. Special cases:
	*
	* - ZPOOL_CONFIG_PATH for whole disk entries. These end in
	* "-part1", or "p1". The suffix is hidden from the user,
	* but included in the string, so this matches around it.
	* - ZPOOL_CONFIG_PATH for short names zfs_strcmp_shortname()
	* is used to check all possible expanded paths.
	* - looking for a top-level vdev name (i.e. ZPOOL_CONFIG_TYPE).
	*
	* Otherwise, all other searches are simple string compares.
	*/
	if (strcmp(srchkey, ZPOOL_CONFIG_PATH) == 0) {
	uint64_t wholedisk = 0;

	(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK,
	&wholedisk);
	if (zfs_strcmp_pathname(srchval, val, wholedisk) == 0)
	return (nv);

	} else if (strcmp(srchkey, ZPOOL_CONFIG_TYPE) == 0 && val) {
	char type, idx, end, p;
	uint64_t id, vdev_id;

	/*
	* Determine our vdev type, keeping in mind
	* that the srchval is composed of a type and
	* vdev id pair (i.e. mirror-4).
	*/
	if ((type = strdup(srchval)) == NULL)
	return (NULL);

	if ((p = strrchr(type, '-')) == NULL) {
	free(type);
	break;
	}
	idx = p + 1;
	*p = '\0';

	/*
	* If the types don't match then keep looking.
	*/
	if (strncmp(val, type, strlen(val)) != 0) {
	free(type);
	break;
	}

	verify(zpool_vdev_is_interior(type));
	verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_ID,
	&id) == 0);

	errno = 0;
	vdev_id = strtoull(idx, &end, 10);

	/*
	* If we are looking for a raidz and a parity is
	* specified, make sure it matches.
	*/
	int rzlen = strlen(VDEV_TYPE_RAIDZ);
	assert(rzlen == strlen(VDEV_TYPE_DRAID));
	int typlen = strlen(type);
	if ((strncmp(type, VDEV_TYPE_RAIDZ, rzlen) == 0 \|\|
	strncmp(type, VDEV_TYPE_DRAID, rzlen) == 0) &&
	typlen != rzlen) {
	uint64_t vdev_parity;
	int parity = *(type + rzlen) - '0';

	if (parity <= 0 \|\| parity > 3 \|\|
	(typlen - rzlen) != 1) {
	/*
	* Nonsense parity specified, can
	* never match
	*/
	free(type);
	return (NULL);
	}
	verify(nvlist_lookup_uint64(nv,
	ZPOOL_CONFIG_NPARITY, &vdev_parity) == 0);
	if ((int)vdev_parity != parity) {
	free(type);
	break;
	}
	}

	free(type);
	if (errno != 0)
	return (NULL);

	/*
	* Now verify that we have the correct vdev id.
	*/
	if (vdev_id == id)
	return (nv);
	}

	/*
	* Common case
	*/
	if (strcmp(srchval, val) == 0)
	return (nv);
	break;
	}

	default:
	break;
	}

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
	&child, &children) != 0)
	return (NULL);

	for (c = 0; c < children; c++) {
	if ((ret = vdev_to_nvlist_iter(child[c], search,
	avail_spare, l2cache, NULL)) != NULL) {
	/*
	* The 'is_log' value is only set for the toplevel
	* vdev, not the leaf vdevs. So we always lookup the
	* log device from the root of the vdev tree (where
	* 'log' is non-NULL).
	*/
	if (log != NULL &&
	nvlist_lookup_uint64(child[c],
	ZPOOL_CONFIG_IS_LOG, &is_log) == 0 &&
	is_log) {
	*log = B_TRUE;
	}
	return (ret);
	}
	}

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
	&child, &children) == 0) {
	for (c = 0; c < children; c++) {
	if ((ret = vdev_to_nvlist_iter(child[c], search,
	avail_spare, l2cache, NULL)) != NULL) {
	*avail_spare = B_TRUE;
	return (ret);
	}
	}
	}

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
	&child, &children) == 0) {
	for (c = 0; c < children; c++) {
	if ((ret = vdev_to_nvlist_iter(child[c], search,
	avail_spare, l2cache, NULL)) != NULL) {
	*l2cache = B_TRUE;
	return (ret);
	}
	}
	}

	return (NULL);
	}

	/*
	* Given a physical path or guid, find the associated vdev.
	*/
	nvlist_t *
	zpool_find_vdev_by_physpath(zpool_handle_t zhp, const char ppath,
	boolean_t avail_spare, boolean_t l2cache, boolean_t *log)
	{
	nvlist_t search, nvroot, *ret;
	uint64_t guid;
	char *end;

	verify(nvlist_alloc(&search, NV_UNIQUE_NAME, KM_SLEEP) == 0);

	guid = strtoull(ppath, &end, 0);
	if (guid != 0 && *end == '\0') {
	verify(nvlist_add_uint64(search, ZPOOL_CONFIG_GUID, guid) == 0);
	} else {
	verify(nvlist_add_string(search, ZPOOL_CONFIG_PHYS_PATH,
	ppath) == 0);
	}

	verify(nvlist_lookup_nvlist(zhp->zpool_config, ZPOOL_CONFIG_VDEV_TREE,
	&nvroot) == 0);

	*avail_spare = B_FALSE;
	*l2cache = B_FALSE;
	if (log != NULL)
	*log = B_FALSE;
	ret = vdev_to_nvlist_iter(nvroot, search, avail_spare, l2cache, log);
	nvlist_free(search);

	return (ret);
	}

	/*
	* Determine if we have an "interior" top-level vdev (i.e mirror/raidz).
	*/
	static boolean_t
	zpool_vdev_is_interior(const char *name)
	{
	if (strncmp(name, VDEV_TYPE_RAIDZ, strlen(VDEV_TYPE_RAIDZ)) == 0 \|\|
	strncmp(name, VDEV_TYPE_SPARE, strlen(VDEV_TYPE_SPARE)) == 0 \|\|
	strncmp(name,
	VDEV_TYPE_REPLACING, strlen(VDEV_TYPE_REPLACING)) == 0 \|\|
	strncmp(name, VDEV_TYPE_MIRROR, strlen(VDEV_TYPE_MIRROR)) == 0)
	return (B_TRUE);

	if (strncmp(name, VDEV_TYPE_DRAID, strlen(VDEV_TYPE_DRAID)) == 0 &&
	!zpool_is_draid_spare(name))
	return (B_TRUE);

	return (B_FALSE);
	}

	nvlist_t *
	zpool_find_vdev(zpool_handle_t zhp, const char path, boolean_t *avail_spare,
	boolean_t l2cache, boolean_t log)
	{
	char *end;
	nvlist_t nvroot, search, *ret;
	uint64_t guid;

	verify(nvlist_alloc(&search, NV_UNIQUE_NAME, KM_SLEEP) == 0);

	guid = strtoull(path, &end, 0);
	if (guid != 0 && *end == '\0') {
	verify(nvlist_add_uint64(search, ZPOOL_CONFIG_GUID, guid) == 0);
	} else if (zpool_vdev_is_interior(path)) {
	verify(nvlist_add_string(search, ZPOOL_CONFIG_TYPE, path) == 0);
	} else {
	verify(nvlist_add_string(search, ZPOOL_CONFIG_PATH, path) == 0);
	}

	verify(nvlist_lookup_nvlist(zhp->zpool_config, ZPOOL_CONFIG_VDEV_TREE,
	&nvroot) == 0);

	*avail_spare = B_FALSE;
	*l2cache = B_FALSE;
	if (log != NULL)
	*log = B_FALSE;
	ret = vdev_to_nvlist_iter(nvroot, search, avail_spare, l2cache, log);
	nvlist_free(search);

	return (ret);
	}

	static int
	vdev_is_online(nvlist_t *nv)
	{
	uint64_t ival;

	if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_OFFLINE, &ival) == 0 \|\|
	nvlist_lookup_uint64(nv, ZPOOL_CONFIG_FAULTED, &ival) == 0 \|\|
	nvlist_lookup_uint64(nv, ZPOOL_CONFIG_REMOVED, &ival) == 0)
	return (0);

	return (1);
	}

	/*
	* Helper function for zpool_get_physpaths().
	*/
	static int
	vdev_get_one_physpath(nvlist_t config, char physpath, size_t physpath_size,
	size_t *bytes_written)
	{
	size_t bytes_left, pos, rsz;
	char *tmppath;
	const char *format;

	if (nvlist_lookup_string(config, ZPOOL_CONFIG_PHYS_PATH,
	&tmppath) != 0)
	return (EZFS_NODEVICE);

	pos = *bytes_written;
	bytes_left = physpath_size - pos;
	format = (pos == 0) ? "%s" : " %s";

	rsz = snprintf(physpath + pos, bytes_left, format, tmppath);
	*bytes_written += rsz;

	if (rsz >= bytes_left) {
	/* if physpath was not copied properly, clear it */
	if (bytes_left != 0) {
	physpath[pos] = 0;
	}
	return (EZFS_NOSPC);
	}
	return (0);
	}

	static int
	vdev_get_physpaths(nvlist_t nv, char physpath, size_t phypath_size,
	size_t *rsz, boolean_t is_spare)
	{
	char *type;
	int ret;

	if (nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) != 0)
	return (EZFS_INVALCONFIG);

	if (strcmp(type, VDEV_TYPE_DISK) == 0) {
	/*
	* An active spare device has ZPOOL_CONFIG_IS_SPARE set.
	* For a spare vdev, we only want to boot from the active
	* spare device.
	*/
	if (is_spare) {
	uint64_t spare = 0;
	(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_SPARE,
	&spare);
	if (!spare)
	return (EZFS_INVALCONFIG);
	}

	if (vdev_is_online(nv)) {
	if ((ret = vdev_get_one_physpath(nv, physpath,
	phypath_size, rsz)) != 0)
	return (ret);
	}
	} else if (strcmp(type, VDEV_TYPE_MIRROR) == 0 \|\|
	strcmp(type, VDEV_TYPE_RAIDZ) == 0 \|\|
	strcmp(type, VDEV_TYPE_REPLACING) == 0 \|\|
	(is_spare = (strcmp(type, VDEV_TYPE_SPARE) == 0))) {
	nvlist_t **child;
	uint_t count;
	int i, ret;

	if (nvlist_lookup_nvlist_array(nv,
	ZPOOL_CONFIG_CHILDREN, &child, &count) != 0)
	return (EZFS_INVALCONFIG);

	for (i = 0; i < count; i++) {
	ret = vdev_get_physpaths(child[i], physpath,
	phypath_size, rsz, is_spare);
	if (ret == EZFS_NOSPC)
	return (ret);
	}
	}

	return (EZFS_POOL_INVALARG);
	}

	/*
	* Get phys_path for a root pool config.
	* Return 0 on success; non-zero on failure.
	*/
	static int
	zpool_get_config_physpath(nvlist_t config, char physpath, size_t phypath_size)
	{
	size_t rsz;
	nvlist_t *vdev_root;
	nvlist_t **child;
	uint_t count;
	char *type;

	rsz = 0;

	if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
	&vdev_root) != 0)
	return (EZFS_INVALCONFIG);

	if (nvlist_lookup_string(vdev_root, ZPOOL_CONFIG_TYPE, &type) != 0 \|\|
	nvlist_lookup_nvlist_array(vdev_root, ZPOOL_CONFIG_CHILDREN,
	&child, &count) != 0)
	return (EZFS_INVALCONFIG);

	/*
	* root pool can only have a single top-level vdev.
	*/
	if (strcmp(type, VDEV_TYPE_ROOT) != 0 \|\| count != 1)
	return (EZFS_POOL_INVALARG);

	(void) vdev_get_physpaths(child[0], physpath, phypath_size, &rsz,
	B_FALSE);

	/* No online devices */
	if (rsz == 0)
	return (EZFS_NODEVICE);

	return (0);
	}

	/*
	* Get phys_path for a root pool
	* Return 0 on success; non-zero on failure.
	*/
	int
	zpool_get_physpath(zpool_handle_t zhp, char physpath, size_t phypath_size)
	{
	return (zpool_get_config_physpath(zhp->zpool_config, physpath,
	phypath_size));
	}

	/*
	* Convert a vdev path to a GUID. Returns GUID or 0 on error.
	*
	* If is_spare, is_l2cache, or is_log is non-NULL, then store within it
	* if the VDEV is a spare, l2cache, or log device. If they're NULL then
	* ignore them.
	*/
	static uint64_t
	zpool_vdev_path_to_guid_impl(zpool_handle_t zhp, const char path,
	boolean_t is_spare, boolean_t is_l2cache, boolean_t *is_log)
	{
	uint64_t guid;
	boolean_t spare = B_FALSE, l2cache = B_FALSE, log = B_FALSE;
	nvlist_t *tgt;

	if ((tgt = zpool_find_vdev(zhp, path, &spare, &l2cache,
	&log)) == NULL)
	return (0);

	verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &guid) == 0);
	if (is_spare != NULL)
	*is_spare = spare;
	if (is_l2cache != NULL)
	*is_l2cache = l2cache;
	if (is_log != NULL)
	*is_log = log;

	return (guid);
	}

	/* Convert a vdev path to a GUID. Returns GUID or 0 on error. */
	uint64_t
	zpool_vdev_path_to_guid(zpool_handle_t zhp, const char path)
	{
	return (zpool_vdev_path_to_guid_impl(zhp, path, NULL, NULL, NULL));
	}

	/*
	* Bring the specified vdev online. The 'flags' parameter is a set of the
	* ZFS_ONLINE_* flags.
	*/
	int
	zpool_vdev_online(zpool_handle_t zhp, const char path, int flags,
	vdev_state_t *newstate)
	{
	zfs_cmd_t zc = {"\0"};
	char msg[1024];
	char *pathname;
	nvlist_t *tgt;
	boolean_t avail_spare, l2cache, islog;
	libzfs_handle_t *hdl = zhp->zpool_hdl;
	int error;

	if (flags & ZFS_ONLINE_EXPAND) {
	(void) snprintf(msg, sizeof (msg),
	dgettext(TEXT_DOMAIN, "cannot expand %s"), path);
	} else {
	(void) snprintf(msg, sizeof (msg),
	dgettext(TEXT_DOMAIN, "cannot online %s"), path);
	}

	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
	if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache,
	&islog)) == NULL)
	return (zfs_error(hdl, EZFS_NODEVICE, msg));

	verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &zc.zc_guid) == 0);

	if (avail_spare)
	return (zfs_error(hdl, EZFS_ISSPARE, msg));

	if ((flags & ZFS_ONLINE_EXPAND \|\|
	zpool_get_prop_int(zhp, ZPOOL_PROP_AUTOEXPAND, NULL)) &&
	nvlist_lookup_string(tgt, ZPOOL_CONFIG_PATH, &pathname) == 0) {
	uint64_t wholedisk = 0;

	(void) nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_WHOLE_DISK,
	&wholedisk);

	/*
	* XXX - L2ARC 1.0 devices can't support expansion.
	*/
	if (l2cache) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"cannot expand cache devices"));
	return (zfs_error(hdl, EZFS_VDEVNOTSUP, msg));
	}

	if (wholedisk) {
	const char *fullpath = path;
	char buf[MAXPATHLEN];

	if (path[0] != '/') {
	error = zfs_resolve_shortname(path, buf,
	sizeof (buf));
	if (error != 0)
	return (zfs_error(hdl, EZFS_NODEVICE,
	msg));

	fullpath = buf;
	}

	error = zpool_relabel_disk(hdl, fullpath, msg);
	if (error != 0)
	return (error);
	}
	}

	zc.zc_cookie = VDEV_STATE_ONLINE;
	zc.zc_obj = flags;

	if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) != 0) {
	if (errno == EINVAL) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "was split "
	"from this pool into a new one. Use '%s' "
	"instead"), "zpool detach");
	return (zfs_error(hdl, EZFS_POSTSPLIT_ONLINE, msg));
	}
	return (zpool_standard_error(hdl, errno, msg));
	}

	*newstate = zc.zc_cookie;
	return (0);
	}

	/*
	* Take the specified vdev offline
	*/
	int
	zpool_vdev_offline(zpool_handle_t zhp, const char path, boolean_t istmp)
	{
	zfs_cmd_t zc = {"\0"};
	char msg[1024];
	nvlist_t *tgt;
	boolean_t avail_spare, l2cache;
	libzfs_handle_t *hdl = zhp->zpool_hdl;

	(void) snprintf(msg, sizeof (msg),
	dgettext(TEXT_DOMAIN, "cannot offline %s"), path);

	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
	if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache,
	NULL)) == NULL)
	return (zfs_error(hdl, EZFS_NODEVICE, msg));

	verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &zc.zc_guid) == 0);

	if (avail_spare)
	return (zfs_error(hdl, EZFS_ISSPARE, msg));

	zc.zc_cookie = VDEV_STATE_OFFLINE;
	zc.zc_obj = istmp ? ZFS_OFFLINE_TEMPORARY : 0;

	if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) == 0)
	return (0);

	switch (errno) {
	case EBUSY:

	/*
	* There are no other replicas of this device.
	*/
	return (zfs_error(hdl, EZFS_NOREPLICAS, msg));

	case EEXIST:
	/*
	* The log device has unplayed logs
	*/
	return (zfs_error(hdl, EZFS_UNPLAYED_LOGS, msg));

	default:
	return (zpool_standard_error(hdl, errno, msg));
	}
	}

	/*
	* Mark the given vdev faulted.
	*/
	int
	zpool_vdev_fault(zpool_handle_t *zhp, uint64_t guid, vdev_aux_t aux)
	{
	zfs_cmd_t zc = {"\0"};
	char msg[1024];
	libzfs_handle_t *hdl = zhp->zpool_hdl;

	(void) snprintf(msg, sizeof (msg),
	dgettext(TEXT_DOMAIN, "cannot fault %llu"), (u_longlong_t)guid);

	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
	zc.zc_guid = guid;
	zc.zc_cookie = VDEV_STATE_FAULTED;
	zc.zc_obj = aux;

	if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) == 0)
	return (0);

	switch (errno) {
	case EBUSY:

	/*
	* There are no other replicas of this device.
	*/
	return (zfs_error(hdl, EZFS_NOREPLICAS, msg));

	default:
	return (zpool_standard_error(hdl, errno, msg));
	}

	}

	/*
	* Mark the given vdev degraded.
	*/
	int
	zpool_vdev_degrade(zpool_handle_t *zhp, uint64_t guid, vdev_aux_t aux)
	{
	zfs_cmd_t zc = {"\0"};
	char msg[1024];
	libzfs_handle_t *hdl = zhp->zpool_hdl;

	(void) snprintf(msg, sizeof (msg),
	dgettext(TEXT_DOMAIN, "cannot degrade %llu"), (u_longlong_t)guid);

	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
	zc.zc_guid = guid;
	zc.zc_cookie = VDEV_STATE_DEGRADED;
	zc.zc_obj = aux;

	if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) == 0)
	return (0);

	return (zpool_standard_error(hdl, errno, msg));
	}

	/*
	* Returns TRUE if the given nvlist is a vdev that was originally swapped in as
	* a hot spare.
	*/
	static boolean_t
	is_replacing_spare(nvlist_t search, nvlist_t tgt, int which)
	{
	nvlist_t **child;
	uint_t c, children;
	char *type;

	if (nvlist_lookup_nvlist_array(search, ZPOOL_CONFIG_CHILDREN, &child,
	&children) == 0) {
	verify(nvlist_lookup_string(search, ZPOOL_CONFIG_TYPE,
	&type) == 0);

	if ((strcmp(type, VDEV_TYPE_SPARE) == 0 \|\|
	strcmp(type, VDEV_TYPE_DRAID_SPARE) == 0) &&
	children == 2 && child[which] == tgt)
	return (B_TRUE);

	for (c = 0; c < children; c++)
	if (is_replacing_spare(child[c], tgt, which))
	return (B_TRUE);
	}

	return (B_FALSE);
	}

	/*
	* Attach new_disk (fully described by nvroot) to old_disk.
	* If 'replacing' is specified, the new disk will replace the old one.
	*/
	int
	zpool_vdev_attach(zpool_handle_t zhp, const char old_disk,
	const char new_disk, nvlist_t nvroot, int replacing, boolean_t rebuild)
	{
	zfs_cmd_t zc = {"\0"};
	char msg[1024];
	int ret;
	nvlist_t *tgt;
	boolean_t avail_spare, l2cache, islog;
	uint64_t val;
	char *newname;
	nvlist_t **child;
	uint_t children;
	nvlist_t *config_root;
	libzfs_handle_t *hdl = zhp->zpool_hdl;

	if (replacing)
	(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
	"cannot replace %s with %s"), old_disk, new_disk);
	else
	(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
	"cannot attach %s to %s"), new_disk, old_disk);

	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
	if ((tgt = zpool_find_vdev(zhp, old_disk, &avail_spare, &l2cache,
	&islog)) == NULL)
	return (zfs_error(hdl, EZFS_NODEVICE, msg));

	if (avail_spare)
	return (zfs_error(hdl, EZFS_ISSPARE, msg));

	if (l2cache)
	return (zfs_error(hdl, EZFS_ISL2CACHE, msg));

	verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &zc.zc_guid) == 0);
	zc.zc_cookie = replacing;
	zc.zc_simple = rebuild;

	if (rebuild &&
	zfeature_lookup_guid("org.openzfs:device_rebuild", NULL) != 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"the loaded zfs module doesn't support device rebuilds"));
	return (zfs_error(hdl, EZFS_POOL_NOTSUP, msg));
	}

	if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
	&child, &children) != 0 \|\| children != 1) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"new device must be a single disk"));
	return (zfs_error(hdl, EZFS_INVALCONFIG, msg));
	}

	verify(nvlist_lookup_nvlist(zpool_get_config(zhp, NULL),
	ZPOOL_CONFIG_VDEV_TREE, &config_root) == 0);

	if ((newname = zpool_vdev_name(NULL, NULL, child[0], 0)) == NULL)
	return (-1);

	/*
	* If the target is a hot spare that has been swapped in, we can only
	* replace it with another hot spare.
	*/
	if (replacing &&
	nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_IS_SPARE, &val) == 0 &&
	(zpool_find_vdev(zhp, newname, &avail_spare, &l2cache,
	NULL) == NULL \|\| !avail_spare) &&
	is_replacing_spare(config_root, tgt, 1)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"can only be replaced by another hot spare"));
	free(newname);
	return (zfs_error(hdl, EZFS_BADTARGET, msg));
	}

	free(newname);

	if (zcmd_write_conf_nvlist(hdl, &zc, nvroot) != 0)
	return (-1);

	ret = zfs_ioctl(hdl, ZFS_IOC_VDEV_ATTACH, &zc);

	zcmd_free_nvlists(&zc);

	if (ret == 0)
	return (0);

	switch (errno) {
	case ENOTSUP:
	/*
	* Can't attach to or replace this type of vdev.
	*/
	if (replacing) {
	uint64_t version = zpool_get_prop_int(zhp,
	ZPOOL_PROP_VERSION, NULL);

	if (islog) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"cannot replace a log with a spare"));
	} else if (rebuild) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"only mirror and dRAID vdevs support "
	"sequential reconstruction"));
	} else if (zpool_is_draid_spare(new_disk)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"dRAID spares can only replace child "
	"devices in their parent's dRAID vdev"));
	} else if (version >= SPA_VERSION_MULTI_REPLACE) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"already in replacing/spare config; wait "
	"for completion or use 'zpool detach'"));
	} else {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"cannot replace a replacing device"));
	}
	} else {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"can only attach to mirrors and top-level "
	"disks"));
	}
	(void) zfs_error(hdl, EZFS_BADTARGET, msg);
	break;

	case EINVAL:
	/*
	* The new device must be a single disk.
	*/
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"new device must be a single disk"));
	(void) zfs_error(hdl, EZFS_INVALCONFIG, msg);
	break;

	case EBUSY:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "%s is busy, "
	"or device removal is in progress"),
	new_disk);
	(void) zfs_error(hdl, EZFS_BADDEV, msg);
	break;

	case EOVERFLOW:
	/*
	* The new device is too small.
	*/
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"device is too small"));
	(void) zfs_error(hdl, EZFS_BADDEV, msg);
	break;

	case EDOM:
	/*
	* The new device has a different optimal sector size.
	*/
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"new device has a different optimal sector size; use the "
	"option '-o ashift=N' to override the optimal size"));
	(void) zfs_error(hdl, EZFS_BADDEV, msg);
	break;

	case ENAMETOOLONG:
	/*
	* The resulting top-level vdev spec won't fit in the label.
	*/
	(void) zfs_error(hdl, EZFS_DEVOVERFLOW, msg);
	break;

	default:
	(void) zpool_standard_error(hdl, errno, msg);
	}

	return (-1);
	}

	/*
	* Detach the specified device.
	*/
	int
	zpool_vdev_detach(zpool_handle_t zhp, const char path)
	{
	zfs_cmd_t zc = {"\0"};
	char msg[1024];
	nvlist_t *tgt;
	boolean_t avail_spare, l2cache;
	libzfs_handle_t *hdl = zhp->zpool_hdl;

	(void) snprintf(msg, sizeof (msg),
	dgettext(TEXT_DOMAIN, "cannot detach %s"), path);

	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
	if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache,
	NULL)) == NULL)
	return (zfs_error(hdl, EZFS_NODEVICE, msg));

	if (avail_spare)
	return (zfs_error(hdl, EZFS_ISSPARE, msg));

	if (l2cache)
	return (zfs_error(hdl, EZFS_ISL2CACHE, msg));

	verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &zc.zc_guid) == 0);

	if (zfs_ioctl(hdl, ZFS_IOC_VDEV_DETACH, &zc) == 0)
	return (0);

	switch (errno) {

	case ENOTSUP:
	/*
	* Can't detach from this type of vdev.
	*/
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "only "
	"applicable to mirror and replacing vdevs"));
	(void) zfs_error(hdl, EZFS_BADTARGET, msg);
	break;

	case EBUSY:
	/*
	* There are no other replicas of this device.
	*/
	(void) zfs_error(hdl, EZFS_NOREPLICAS, msg);
	break;

	default:
	(void) zpool_standard_error(hdl, errno, msg);
	}

	return (-1);
	}

	/*
	* Find a mirror vdev in the source nvlist.
	*
	* The mchild array contains a list of disks in one of the top-level mirrors
	* of the source pool. The schild array contains a list of disks that the
	* user specified on the command line. We loop over the mchild array to
	* see if any entry in the schild array matches.
	*
	* If a disk in the mchild array is found in the schild array, we return
	* the index of that entry. Otherwise we return -1.
	*/
	static int
	find_vdev_entry(zpool_handle_t zhp, nvlist_t *mchild, uint_t mchildren,
	nvlist_t **schild, uint_t schildren)
	{
	uint_t mc;

	for (mc = 0; mc < mchildren; mc++) {
	uint_t sc;
	char *mpath = zpool_vdev_name(zhp->zpool_hdl, zhp,
	mchild[mc], 0);

	for (sc = 0; sc < schildren; sc++) {
	char *spath = zpool_vdev_name(zhp->zpool_hdl, zhp,
	schild[sc], 0);
	boolean_t result = (strcmp(mpath, spath) == 0);

	free(spath);
	if (result) {
	free(mpath);
	return (mc);
	}
	}

	free(mpath);
	}

	return (-1);
	}

	/*
	* Split a mirror pool. If newroot points to null, then a new nvlist
	* is generated and it is the responsibility of the caller to free it.
	*/
	int
	zpool_vdev_split(zpool_handle_t zhp, char newname, nvlist_t **newroot,
	nvlist_t *props, splitflags_t flags)
	{
	zfs_cmd_t zc = {"\0"};
	char msg[1024], *bias;
	nvlist_t tree, config, child, newchild, *newconfig = NULL;
	nvlist_t *varray = NULL, zc_props = NULL;
	uint_t c, children, newchildren, lastlog = 0, vcount, found = 0;
	libzfs_handle_t *hdl = zhp->zpool_hdl;
	uint64_t vers, readonly = B_FALSE;
	boolean_t freelist = B_FALSE, memory_err = B_TRUE;
	int retval = 0;

	(void) snprintf(msg, sizeof (msg),
	dgettext(TEXT_DOMAIN, "Unable to split %s"), zhp->zpool_name);

	if (!zpool_name_valid(hdl, B_FALSE, newname))
	return (zfs_error(hdl, EZFS_INVALIDNAME, msg));

	if ((config = zpool_get_config(zhp, NULL)) == NULL) {
	(void) fprintf(stderr, gettext("Internal error: unable to "
	"retrieve pool configuration\n"));
	return (-1);
	}

	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &tree)
	== 0);
	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, &vers) == 0);

	if (props) {
	prop_flags_t flags = { .create = B_FALSE, .import = B_TRUE };
	if ((zc_props = zpool_valid_proplist(hdl, zhp->zpool_name,
	props, vers, flags, msg)) == NULL)
	return (-1);
	(void) nvlist_lookup_uint64(zc_props,
	zpool_prop_to_name(ZPOOL_PROP_READONLY), &readonly);
	if (readonly) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"property %s can only be set at import time"),
	zpool_prop_to_name(ZPOOL_PROP_READONLY));
	return (-1);
	}
	}

	if (nvlist_lookup_nvlist_array(tree, ZPOOL_CONFIG_CHILDREN, &child,
	&children) != 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"Source pool is missing vdev tree"));
	nvlist_free(zc_props);
	return (-1);
	}

	varray = zfs_alloc(hdl, children * sizeof (nvlist_t *));
	vcount = 0;

	if (*newroot == NULL \|\|
	nvlist_lookup_nvlist_array(*newroot, ZPOOL_CONFIG_CHILDREN,
	&newchild, &newchildren) != 0)
	newchildren = 0;

	for (c = 0; c < children; c++) {
	uint64_t is_log = B_FALSE, is_hole = B_FALSE;
	boolean_t is_special = B_FALSE, is_dedup = B_FALSE;
	char *type;
	nvlist_t *mchild, vdev;
	uint_t mchildren;
	int entry;

	/*
	* Unlike cache & spares, slogs are stored in the
	* ZPOOL_CONFIG_CHILDREN array. We filter them out here.
	*/
	(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
	&is_log);
	(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE,
	&is_hole);
	if (is_log \|\| is_hole) {
	/*
	* Create a hole vdev and put it in the config.
	*/
	if (nvlist_alloc(&vdev, NV_UNIQUE_NAME, 0) != 0)
	goto out;
	if (nvlist_add_string(vdev, ZPOOL_CONFIG_TYPE,
	VDEV_TYPE_HOLE) != 0)
	goto out;
	if (nvlist_add_uint64(vdev, ZPOOL_CONFIG_IS_HOLE,
	1) != 0)
	goto out;
	if (lastlog == 0)
	lastlog = vcount;
	varray[vcount++] = vdev;
	continue;
	}
	lastlog = 0;
	verify(nvlist_lookup_string(child[c], ZPOOL_CONFIG_TYPE, &type)
	== 0);

	if (strcmp(type, VDEV_TYPE_INDIRECT) == 0) {
	vdev = child[c];
	if (nvlist_dup(vdev, &varray[vcount++], 0) != 0)
	goto out;
	continue;
	} else if (strcmp(type, VDEV_TYPE_MIRROR) != 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"Source pool must be composed only of mirrors\n"));
	retval = zfs_error(hdl, EZFS_INVALCONFIG, msg);
	goto out;
	}

	if (nvlist_lookup_string(child[c],
	ZPOOL_CONFIG_ALLOCATION_BIAS, &bias) == 0) {
	if (strcmp(bias, VDEV_ALLOC_BIAS_SPECIAL) == 0)
	is_special = B_TRUE;
	else if (strcmp(bias, VDEV_ALLOC_BIAS_DEDUP) == 0)
	is_dedup = B_TRUE;
	}
	verify(nvlist_lookup_nvlist_array(child[c],
	ZPOOL_CONFIG_CHILDREN, &mchild, &mchildren) == 0);

	/* find or add an entry for this top-level vdev */
	if (newchildren > 0 &&
	(entry = find_vdev_entry(zhp, mchild, mchildren,
	newchild, newchildren)) >= 0) {
	/* We found a disk that the user specified. */
	vdev = mchild[entry];
	++found;
	} else {
	/* User didn't specify a disk for this vdev. */
	vdev = mchild[mchildren - 1];
	}

	if (nvlist_dup(vdev, &varray[vcount++], 0) != 0)
	goto out;

	if (flags.dryrun != 0) {
	if (is_dedup == B_TRUE) {
	if (nvlist_add_string(varray[vcount - 1],
	ZPOOL_CONFIG_ALLOCATION_BIAS,
	VDEV_ALLOC_BIAS_DEDUP) != 0)
	goto out;
	} else if (is_special == B_TRUE) {
	if (nvlist_add_string(varray[vcount - 1],
	ZPOOL_CONFIG_ALLOCATION_BIAS,
	VDEV_ALLOC_BIAS_SPECIAL) != 0)
	goto out;
	}
	}
	}

	/* did we find every disk the user specified? */
	if (found != newchildren) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "Device list must "
	"include at most one disk from each mirror"));
	retval = zfs_error(hdl, EZFS_INVALCONFIG, msg);
	goto out;
	}

	/* Prepare the nvlist for populating. */
	if (*newroot == NULL) {
	if (nvlist_alloc(newroot, NV_UNIQUE_NAME, 0) != 0)
	goto out;
	freelist = B_TRUE;
	if (nvlist_add_string(*newroot, ZPOOL_CONFIG_TYPE,
	VDEV_TYPE_ROOT) != 0)
	goto out;
	} else {
	verify(nvlist_remove_all(*newroot, ZPOOL_CONFIG_CHILDREN) == 0);
	}

	/* Add all the children we found */
	if (nvlist_add_nvlist_array(*newroot, ZPOOL_CONFIG_CHILDREN, varray,
	lastlog == 0 ? vcount : lastlog) != 0)
	goto out;

	/*
	* If we're just doing a dry run, exit now with success.
	*/
	if (flags.dryrun) {
	memory_err = B_FALSE;
	freelist = B_FALSE;
	goto out;
	}

	/* now build up the config list & call the ioctl */
	if (nvlist_alloc(&newconfig, NV_UNIQUE_NAME, 0) != 0)
	goto out;

	if (nvlist_add_nvlist(newconfig,
	ZPOOL_CONFIG_VDEV_TREE, *newroot) != 0 \|\|
	nvlist_add_string(newconfig,
	ZPOOL_CONFIG_POOL_NAME, newname) != 0 \|\|
	nvlist_add_uint64(newconfig, ZPOOL_CONFIG_VERSION, vers) != 0)
	goto out;

	/*
	* The new pool is automatically part of the namespace unless we
	* explicitly export it.
	*/
	if (!flags.import)
	zc.zc_cookie = ZPOOL_EXPORT_AFTER_SPLIT;
	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
	(void) strlcpy(zc.zc_string, newname, sizeof (zc.zc_string));
	if (zcmd_write_conf_nvlist(hdl, &zc, newconfig) != 0)
	goto out;
	if (zc_props != NULL && zcmd_write_src_nvlist(hdl, &zc, zc_props) != 0)
	goto out;

	if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SPLIT, &zc) != 0) {
	retval = zpool_standard_error(hdl, errno, msg);
	goto out;
	}

	freelist = B_FALSE;
	memory_err = B_FALSE;

	out:
	if (varray != NULL) {
	int v;

	for (v = 0; v < vcount; v++)
	nvlist_free(varray[v]);
	free(varray);
	}
	zcmd_free_nvlists(&zc);
	nvlist_free(zc_props);
	nvlist_free(newconfig);
	if (freelist) {
	nvlist_free(*newroot);
	*newroot = NULL;
	}

	if (retval != 0)
	return (retval);

	if (memory_err)
	return (no_memory(hdl));

	return (0);
	}

	/*
	* Remove the given device.
	*/
	int
	zpool_vdev_remove(zpool_handle_t zhp, const char path)
	{
	zfs_cmd_t zc = {"\0"};
	char msg[1024];
	nvlist_t *tgt;
	boolean_t avail_spare, l2cache, islog;
	libzfs_handle_t *hdl = zhp->zpool_hdl;
	uint64_t version;

	(void) snprintf(msg, sizeof (msg),
	dgettext(TEXT_DOMAIN, "cannot remove %s"), path);

	if (zpool_is_draid_spare(path)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"dRAID spares cannot be removed"));
	return (zfs_error(hdl, EZFS_NODEVICE, msg));
	}

	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
	if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache,
	&islog)) == NULL)
	return (zfs_error(hdl, EZFS_NODEVICE, msg));

	version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL);
	if (islog && version < SPA_VERSION_HOLES) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"pool must be upgraded to support log removal"));
	return (zfs_error(hdl, EZFS_BADVERSION, msg));
	}

	zc.zc_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID);

	if (zfs_ioctl(hdl, ZFS_IOC_VDEV_REMOVE, &zc) == 0)
	return (0);

	switch (errno) {

	case EINVAL:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"invalid config; all top-level vdevs must "
	"have the same sector size and not be raidz."));
	(void) zfs_error(hdl, EZFS_INVALCONFIG, msg);
	break;

	case EBUSY:
	if (islog) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"Mount encrypted datasets to replay logs."));
	} else {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"Pool busy; removal may already be in progress"));
	}
	(void) zfs_error(hdl, EZFS_BUSY, msg);
	break;

	case EACCES:
	if (islog) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"Mount encrypted datasets to replay logs."));
	(void) zfs_error(hdl, EZFS_BUSY, msg);
	} else {
	(void) zpool_standard_error(hdl, errno, msg);
	}
	break;

	default:
	(void) zpool_standard_error(hdl, errno, msg);
	}
	return (-1);
	}

	int
	zpool_vdev_remove_cancel(zpool_handle_t *zhp)
	{
	zfs_cmd_t zc;
	char msg[1024];
	libzfs_handle_t *hdl = zhp->zpool_hdl;

	(void) snprintf(msg, sizeof (msg),
	dgettext(TEXT_DOMAIN, "cannot cancel removal"));

	bzero(&zc, sizeof (zc));
	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
	zc.zc_cookie = 1;

	if (zfs_ioctl(hdl, ZFS_IOC_VDEV_REMOVE, &zc) == 0)
	return (0);

	return (zpool_standard_error(hdl, errno, msg));
	}

	int
	zpool_vdev_indirect_size(zpool_handle_t zhp, const char path,
	uint64_t *sizep)
	{
	char msg[1024];
	nvlist_t *tgt;
	boolean_t avail_spare, l2cache, islog;
	libzfs_handle_t *hdl = zhp->zpool_hdl;

	(void) snprintf(msg, sizeof (msg),
	dgettext(TEXT_DOMAIN, "cannot determine indirect size of %s"),
	path);

	if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache,
	&islog)) == NULL)
	return (zfs_error(hdl, EZFS_NODEVICE, msg));

	if (avail_spare \|\| l2cache \|\| islog) {
	*sizep = 0;
	return (0);
	}

	if (nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_INDIRECT_SIZE, sizep) != 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"indirect size not available"));
	return (zfs_error(hdl, EINVAL, msg));
	}
	return (0);
	}

	/*
	* Clear the errors for the pool, or the particular device if specified.
	*/
	int
	zpool_clear(zpool_handle_t zhp, const char path, nvlist_t *rewindnvl)
	{
	zfs_cmd_t zc = {"\0"};
	char msg[1024];
	nvlist_t *tgt;
	zpool_load_policy_t policy;
	boolean_t avail_spare, l2cache;
	libzfs_handle_t *hdl = zhp->zpool_hdl;
	nvlist_t *nvi = NULL;
	int error;

	if (path)
	(void) snprintf(msg, sizeof (msg),
	dgettext(TEXT_DOMAIN, "cannot clear errors for %s"),
	path);
	else
	(void) snprintf(msg, sizeof (msg),
	dgettext(TEXT_DOMAIN, "cannot clear errors for %s"),
	zhp->zpool_name);

	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
	if (path) {
	if ((tgt = zpool_find_vdev(zhp, path, &avail_spare,
	&l2cache, NULL)) == NULL)
	return (zfs_error(hdl, EZFS_NODEVICE, msg));

	/*
	* Don't allow error clearing for hot spares. Do allow
	* error clearing for l2cache devices.
	*/
	if (avail_spare)
	return (zfs_error(hdl, EZFS_ISSPARE, msg));

	verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID,
	&zc.zc_guid) == 0);
	}

	zpool_get_load_policy(rewindnvl, &policy);
	zc.zc_cookie = policy.zlp_rewind;

	if (zcmd_alloc_dst_nvlist(hdl, &zc, zhp->zpool_config_size * 2) != 0)
	return (-1);

	if (zcmd_write_src_nvlist(hdl, &zc, rewindnvl) != 0)
	return (-1);

	while ((error = zfs_ioctl(hdl, ZFS_IOC_CLEAR, &zc)) != 0 &&
	errno == ENOMEM) {
	if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) {
	zcmd_free_nvlists(&zc);
	return (-1);
	}
	}

	if (!error \|\| ((policy.zlp_rewind & ZPOOL_TRY_REWIND) &&
	errno != EPERM && errno != EACCES)) {
	if (policy.zlp_rewind &
	(ZPOOL_DO_REWIND \| ZPOOL_TRY_REWIND)) {
	(void) zcmd_read_dst_nvlist(hdl, &zc, &nvi);
	zpool_rewind_exclaim(hdl, zc.zc_name,
	((policy.zlp_rewind & ZPOOL_TRY_REWIND) != 0),
	nvi);
	nvlist_free(nvi);
	}
	zcmd_free_nvlists(&zc);
	return (0);
	}

	zcmd_free_nvlists(&zc);
	return (zpool_standard_error(hdl, errno, msg));
	}

	/*
	* Similar to zpool_clear(), but takes a GUID (used by fmd).
	*/
	int
	zpool_vdev_clear(zpool_handle_t *zhp, uint64_t guid)
	{
	zfs_cmd_t zc = {"\0"};
	char msg[1024];
	libzfs_handle_t *hdl = zhp->zpool_hdl;

	(void) snprintf(msg, sizeof (msg),
	dgettext(TEXT_DOMAIN, "cannot clear errors for %llx"),
	(u_longlong_t)guid);

	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
	zc.zc_guid = guid;
	zc.zc_cookie = ZPOOL_NO_REWIND;

	if (zfs_ioctl(hdl, ZFS_IOC_CLEAR, &zc) == 0)
	return (0);

	return (zpool_standard_error(hdl, errno, msg));
	}

	/*
	* Change the GUID for a pool.
	*/
	int
	zpool_reguid(zpool_handle_t *zhp)
	{
	char msg[1024];
	libzfs_handle_t *hdl = zhp->zpool_hdl;
	zfs_cmd_t zc = {"\0"};

	(void) snprintf(msg, sizeof (msg),
	dgettext(TEXT_DOMAIN, "cannot reguid '%s'"), zhp->zpool_name);

	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
	if (zfs_ioctl(hdl, ZFS_IOC_POOL_REGUID, &zc) == 0)
	return (0);

	return (zpool_standard_error(hdl, errno, msg));
	}

	/*
	* Reopen the pool.
	*/
	int
	zpool_reopen_one(zpool_handle_t zhp, void data)
	{
	libzfs_handle_t *hdl = zpool_get_handle(zhp);
	const char *pool_name = zpool_get_name(zhp);
	boolean_t *scrub_restart = data;
	int error;

	error = lzc_reopen(pool_name, *scrub_restart);
	if (error) {
	return (zpool_standard_error_fmt(hdl, error,
	dgettext(TEXT_DOMAIN, "cannot reopen '%s'"), pool_name));
	}

	return (0);
	}

	/* call into libzfs_core to execute the sync IOCTL per pool */
	int
	zpool_sync_one(zpool_handle_t zhp, void data)
	{
	int ret;
	libzfs_handle_t *hdl = zpool_get_handle(zhp);
	const char *pool_name = zpool_get_name(zhp);
	boolean_t *force = data;
	nvlist_t *innvl = fnvlist_alloc();

	fnvlist_add_boolean_value(innvl, "force", *force);
	if ((ret = lzc_sync(pool_name, innvl, NULL)) != 0) {
	nvlist_free(innvl);
	return (zpool_standard_error_fmt(hdl, ret,
	dgettext(TEXT_DOMAIN, "sync '%s' failed"), pool_name));
	}
	nvlist_free(innvl);

	return (0);
	}

	#define PATH_BUF_LEN 64

	/*
	* Given a vdev, return the name to display in iostat. If the vdev has a path,
	* we use that, stripping off any leading "/dev/dsk/"; if not, we use the type.
	* We also check if this is a whole disk, in which case we strip off the
	* trailing 's0' slice name.
	*
	* This routine is also responsible for identifying when disks have been
	* reconfigured in a new location. The kernel will have opened the device by
	* devid, but the path will still refer to the old location. To catch this, we
	* first do a path -> devid translation (which is fast for the common case). If
	* the devid matches, we're done. If not, we do a reverse devid -> path
	* translation and issue the appropriate ioctl() to update the path of the vdev.
	* If 'zhp' is NULL, then this is an exported pool, and we don't need to do any
	* of these checks.
	*/
	char *
	zpool_vdev_name(libzfs_handle_t hdl, zpool_handle_t zhp, nvlist_t *nv,
	int name_flags)
	{
	char path, type, *env;
	uint64_t value;
	char buf[PATH_BUF_LEN];
	char tmpbuf[PATH_BUF_LEN];

	/*
	* vdev_name will be "root"/"root-0" for the root vdev, but it is the
	* zpool name that will be displayed to the user.
	*/
	verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0);
	if (zhp != NULL && strcmp(type, "root") == 0)
	return (zfs_strdup(hdl, zpool_get_name(zhp)));

	env = getenv("ZPOOL_VDEV_NAME_PATH");
	if (env && (strtoul(env, NULL, 0) > 0 \|\|
	!strncasecmp(env, "YES", 3) \|\| !strncasecmp(env, "ON", 2)))
	name_flags \|= VDEV_NAME_PATH;

	env = getenv("ZPOOL_VDEV_NAME_GUID");
	if (env && (strtoul(env, NULL, 0) > 0 \|\|
	!strncasecmp(env, "YES", 3) \|\| !strncasecmp(env, "ON", 2)))
	name_flags \|= VDEV_NAME_GUID;

	env = getenv("ZPOOL_VDEV_NAME_FOLLOW_LINKS");
	if (env && (strtoul(env, NULL, 0) > 0 \|\|
	!strncasecmp(env, "YES", 3) \|\| !strncasecmp(env, "ON", 2)))
	name_flags \|= VDEV_NAME_FOLLOW_LINKS;

	if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT, &value) == 0 \|\|
	name_flags & VDEV_NAME_GUID) {
	(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &value);
	(void) snprintf(buf, sizeof (buf), "%llu", (u_longlong_t)value);
	path = buf;
	} else if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0) {
	if (name_flags & VDEV_NAME_FOLLOW_LINKS) {
	char *rp = realpath(path, NULL);
	if (rp) {
	strlcpy(buf, rp, sizeof (buf));
	path = buf;
	free(rp);
	}
	}

	/*
	* For a block device only use the name.
	*/
	if ((strcmp(type, VDEV_TYPE_DISK) == 0) &&
	!(name_flags & VDEV_NAME_PATH)) {
	path = zfs_strip_path(path);
	}

	/*
	* Remove the partition from the path if this is a whole disk.
	*/
	if (strcmp(type, VDEV_TYPE_DRAID_SPARE) != 0 &&
	nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK, &value)
	== 0 && value && !(name_flags & VDEV_NAME_PATH)) {
	return (zfs_strip_partition(path));
	}
	} else {
	path = type;

	/*
	* If it's a raidz device, we need to stick in the parity level.
	*/
	if (strcmp(path, VDEV_TYPE_RAIDZ) == 0) {
	verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NPARITY,
	&value) == 0);
	(void) snprintf(buf, sizeof (buf), "%s%llu", path,
	(u_longlong_t)value);
	path = buf;
	}

	/*
	* If it's a dRAID device, we add parity, groups, and spares.
	*/
	if (strcmp(path, VDEV_TYPE_DRAID) == 0) {
	uint64_t ndata, nparity, nspares;
	nvlist_t **child;
	uint_t children;

	verify(nvlist_lookup_nvlist_array(nv,
	ZPOOL_CONFIG_CHILDREN, &child, &children) == 0);
	verify(nvlist_lookup_uint64(nv,
	ZPOOL_CONFIG_NPARITY, &nparity) == 0);
	verify(nvlist_lookup_uint64(nv,
	ZPOOL_CONFIG_DRAID_NDATA, &ndata) == 0);
	verify(nvlist_lookup_uint64(nv,
	ZPOOL_CONFIG_DRAID_NSPARES, &nspares) == 0);

	path = zpool_draid_name(buf, sizeof (buf), ndata,
	nparity, nspares, children);
	}

	/*
	* We identify each top-level vdev by using a <type-id>
	* naming convention.
	*/
	if (name_flags & VDEV_NAME_TYPE_ID) {
	uint64_t id;
	verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_ID,
	&id) == 0);
	(void) snprintf(tmpbuf, sizeof (tmpbuf), "%s-%llu",
	path, (u_longlong_t)id);
	path = tmpbuf;
	}
	}

	return (zfs_strdup(hdl, path));
	}

	static int
	zbookmark_mem_compare(const void a, const void b)
	{
	return (memcmp(a, b, sizeof (zbookmark_phys_t)));
	}

	/*
	* Retrieve the persistent error log, uniquify the members, and return to the
	* caller.
	*/
	int
	zpool_get_errlog(zpool_handle_t zhp, nvlist_t *nverrlistp)
	{
	zfs_cmd_t zc = {"\0"};
	libzfs_handle_t *hdl = zhp->zpool_hdl;
	uint64_t count;
	zbookmark_phys_t *zb = NULL;
	int i;

	/*
	* Retrieve the raw error list from the kernel. If the number of errors
	* has increased, allocate more space and continue until we get the
	* entire list.
	*/
	verify(nvlist_lookup_uint64(zhp->zpool_config, ZPOOL_CONFIG_ERRCOUNT,
	&count) == 0);
	if (count == 0)
	return (0);
	zc.zc_nvlist_dst = (uintptr_t)zfs_alloc(zhp->zpool_hdl,
	count * sizeof (zbookmark_phys_t));
	zc.zc_nvlist_dst_size = count;
	(void) strcpy(zc.zc_name, zhp->zpool_name);
	for (;;) {
	if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_ERROR_LOG,
	&zc) != 0) {
	free((void *)(uintptr_t)zc.zc_nvlist_dst);
	if (errno == ENOMEM) {
	void *dst;

	count = zc.zc_nvlist_dst_size;
	dst = zfs_alloc(zhp->zpool_hdl, count *
	sizeof (zbookmark_phys_t));
	zc.zc_nvlist_dst = (uintptr_t)dst;
	} else {
	return (zpool_standard_error_fmt(hdl, errno,
	dgettext(TEXT_DOMAIN, "errors: List of "
	"errors unavailable")));
	}
	} else {
	break;
	}
	}

	/*
	* Sort the resulting bookmarks. This is a little confusing due to the
	* implementation of ZFS_IOC_ERROR_LOG. The bookmarks are copied last
	* to first, and 'zc_nvlist_dst_size' indicates the number of bookmarks
	* _not_ copied as part of the process. So we point the start of our
	* array appropriate and decrement the total number of elements.
	*/
	zb = ((zbookmark_phys_t *)(uintptr_t)zc.zc_nvlist_dst) +
	zc.zc_nvlist_dst_size;
	count -= zc.zc_nvlist_dst_size;

	qsort(zb, count, sizeof (zbookmark_phys_t), zbookmark_mem_compare);

	verify(nvlist_alloc(nverrlistp, 0, KM_SLEEP) == 0);

	/*
	* Fill in the nverrlistp with nvlist's of dataset and object numbers.
	*/
	for (i = 0; i < count; i++) {
	nvlist_t *nv;

	/* ignoring zb_blkid and zb_level for now */
	if (i > 0 && zb[i-1].zb_objset == zb[i].zb_objset &&
	zb[i-1].zb_object == zb[i].zb_object)
	continue;

	if (nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) != 0)
	goto nomem;
	if (nvlist_add_uint64(nv, ZPOOL_ERR_DATASET,
	zb[i].zb_objset) != 0) {
	nvlist_free(nv);
	goto nomem;
	}
	if (nvlist_add_uint64(nv, ZPOOL_ERR_OBJECT,
	zb[i].zb_object) != 0) {
	nvlist_free(nv);
	goto nomem;
	}
	if (nvlist_add_nvlist(*nverrlistp, "ejk", nv) != 0) {
	nvlist_free(nv);
	goto nomem;
	}
	nvlist_free(nv);
	}

	free((void *)(uintptr_t)zc.zc_nvlist_dst);
	return (0);

	nomem:
	free((void *)(uintptr_t)zc.zc_nvlist_dst);
	return (no_memory(zhp->zpool_hdl));
	}

	/*
	* Upgrade a ZFS pool to the latest on-disk version.
	*/
	int
	zpool_upgrade(zpool_handle_t *zhp, uint64_t new_version)
	{
	zfs_cmd_t zc = {"\0"};
	libzfs_handle_t *hdl = zhp->zpool_hdl;

	(void) strcpy(zc.zc_name, zhp->zpool_name);
	zc.zc_cookie = new_version;

	if (zfs_ioctl(hdl, ZFS_IOC_POOL_UPGRADE, &zc) != 0)
	return (zpool_standard_error_fmt(hdl, errno,
	dgettext(TEXT_DOMAIN, "cannot upgrade '%s'"),
	zhp->zpool_name));
	return (0);
	}

	void
	zfs_save_arguments(int argc, char *argv, char string, int len)
	{
	int i;

	- (void) strlcpy(string, basename(argv[0]), len);
	+ (void) strlcpy(string, zfs_basename(argv[0]), len);
	for (i = 1; i < argc; i++) {
	(void) strlcat(string, " ", len);
	(void) strlcat(string, argv[i], len);
	}
	}

	int
	zpool_log_history(libzfs_handle_t hdl, const char message)
	{
	zfs_cmd_t zc = {"\0"};
	nvlist_t *args;
	int err;

	args = fnvlist_alloc();
	fnvlist_add_string(args, "message", message);
	err = zcmd_write_src_nvlist(hdl, &zc, args);
	if (err == 0)
	err = zfs_ioctl(hdl, ZFS_IOC_LOG_HISTORY, &zc);
	nvlist_free(args);
	zcmd_free_nvlists(&zc);
	return (err);
	}

	/*
	* Perform ioctl to get some command history of a pool.
	*
	* 'buf' is the buffer to fill up to 'len' bytes. 'off' is the
	* logical offset of the history buffer to start reading from.
	*
	* Upon return, 'off' is the next logical offset to read from and
	* 'len' is the actual amount of bytes read into 'buf'.
	*/
	static int
	get_history(zpool_handle_t zhp, char buf, uint64_t off, uint64_t len)
	{
	zfs_cmd_t zc = {"\0"};
	libzfs_handle_t *hdl = zhp->zpool_hdl;

	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));

	zc.zc_history = (uint64_t)(uintptr_t)buf;
	zc.zc_history_len = *len;
	zc.zc_history_offset = *off;

	if (zfs_ioctl(hdl, ZFS_IOC_POOL_GET_HISTORY, &zc) != 0) {
	switch (errno) {
	case EPERM:
	return (zfs_error_fmt(hdl, EZFS_PERM,
	dgettext(TEXT_DOMAIN,
	"cannot show history for pool '%s'"),
	zhp->zpool_name));
	case ENOENT:
	return (zfs_error_fmt(hdl, EZFS_NOHISTORY,
	dgettext(TEXT_DOMAIN, "cannot get history for pool "
	"'%s'"), zhp->zpool_name));
	case ENOTSUP:
	return (zfs_error_fmt(hdl, EZFS_BADVERSION,
	dgettext(TEXT_DOMAIN, "cannot get history for pool "
	"'%s', pool must be upgraded"), zhp->zpool_name));
	default:
	return (zpool_standard_error_fmt(hdl, errno,
	dgettext(TEXT_DOMAIN,
	"cannot get history for '%s'"), zhp->zpool_name));
	}
	}

	*len = zc.zc_history_len;
	*off = zc.zc_history_offset;

	return (0);
	}

	/*
	* Retrieve the command history of a pool.
	*/
	int
	zpool_get_history(zpool_handle_t zhp, nvlist_t nvhisp, uint64_t off,
	boolean_t *eof)
	{
	char *buf;
	int buflen = 128 * 1024;
	nvlist_t **records = NULL;
	uint_t numrecords = 0;
	int err, i;
	uint64_t start = *off;

	buf = malloc(buflen);
	if (buf == NULL)
	return (ENOMEM);
	/* process about 1MB a time */
	while (off - start < 1024 1024) {
	uint64_t bytes_read = buflen;
	uint64_t leftover;

	if ((err = get_history(zhp, buf, off, &bytes_read)) != 0)
	break;

	/* if nothing else was read in, we're at EOF, just return */
	if (!bytes_read) {
	*eof = B_TRUE;
	break;
	}

	if ((err = zpool_history_unpack(buf, bytes_read,
	&leftover, &records, &numrecords)) != 0)
	break;
	*off -= leftover;
	if (leftover == bytes_read) {
	/*
	* no progress made, because buffer is not big enough
	* to hold this record; resize and retry.
	*/
	buflen *= 2;
	free(buf);
	buf = malloc(buflen);
	if (buf == NULL)
	return (ENOMEM);
	}
	}

	free(buf);

	if (!err) {
	verify(nvlist_alloc(nvhisp, NV_UNIQUE_NAME, 0) == 0);
	verify(nvlist_add_nvlist_array(*nvhisp, ZPOOL_HIST_RECORD,
	records, numrecords) == 0);
	}
	for (i = 0; i < numrecords; i++)
	nvlist_free(records[i]);
	free(records);

	return (err);
	}

	/*
	* Retrieve the next event given the passed 'zevent_fd' file descriptor.
	* If there is a new event available 'nvp' will contain a newly allocated
	* nvlist and 'dropped' will be set to the number of missed events since
	* the last call to this function. When 'nvp' is set to NULL it indicates
	* no new events are available. In either case the function returns 0 and
	* it is up to the caller to free 'nvp'. In the case of a fatal error the
	* function will return a non-zero value. When the function is called in
	* blocking mode (the default, unless the ZEVENT_NONBLOCK flag is passed),
	* it will not return until a new event is available.
	*/
	int
	zpool_events_next(libzfs_handle_t hdl, nvlist_t *nvp,
	int *dropped, unsigned flags, int zevent_fd)
	{
	zfs_cmd_t zc = {"\0"};
	int error = 0;

	*nvp = NULL;
	*dropped = 0;
	zc.zc_cleanup_fd = zevent_fd;

	if (flags & ZEVENT_NONBLOCK)
	zc.zc_guid = ZEVENT_NONBLOCK;

	if (zcmd_alloc_dst_nvlist(hdl, &zc, ZEVENT_SIZE) != 0)
	return (-1);

	retry:
	if (zfs_ioctl(hdl, ZFS_IOC_EVENTS_NEXT, &zc) != 0) {
	switch (errno) {
	case ESHUTDOWN:
	error = zfs_error_fmt(hdl, EZFS_POOLUNAVAIL,
	dgettext(TEXT_DOMAIN, "zfs shutdown"));
	goto out;
	case ENOENT:
	/* Blocking error case should not occur */
	if (!(flags & ZEVENT_NONBLOCK))
	error = zpool_standard_error_fmt(hdl, errno,
	dgettext(TEXT_DOMAIN, "cannot get event"));

	goto out;
	case ENOMEM:
	if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) {
	error = zfs_error_fmt(hdl, EZFS_NOMEM,
	dgettext(TEXT_DOMAIN, "cannot get event"));
	goto out;
	} else {
	goto retry;
	}
	default:
	error = zpool_standard_error_fmt(hdl, errno,
	dgettext(TEXT_DOMAIN, "cannot get event"));
	goto out;
	}
	}

	error = zcmd_read_dst_nvlist(hdl, &zc, nvp);
	if (error != 0)
	goto out;

	*dropped = (int)zc.zc_cookie;
	out:
	zcmd_free_nvlists(&zc);

	return (error);
	}

	/*
	* Clear all events.
	*/
	int
	zpool_events_clear(libzfs_handle_t hdl, int count)
	{
	zfs_cmd_t zc = {"\0"};

	if (zfs_ioctl(hdl, ZFS_IOC_EVENTS_CLEAR, &zc) != 0)
	return (zpool_standard_error(hdl, errno,
	dgettext(TEXT_DOMAIN, "cannot clear events")));

	if (count != NULL)
	count = (int)zc.zc_cookie; / # of events cleared */

	return (0);
	}

	/*
	* Seek to a specific EID, ZEVENT_SEEK_START, or ZEVENT_SEEK_END for
	* the passed zevent_fd file handle. On success zero is returned,
	* otherwise -1 is returned and hdl->libzfs_error is set to the errno.
	*/
	int
	zpool_events_seek(libzfs_handle_t *hdl, uint64_t eid, int zevent_fd)
	{
	zfs_cmd_t zc = {"\0"};
	int error = 0;

	zc.zc_guid = eid;
	zc.zc_cleanup_fd = zevent_fd;

	if (zfs_ioctl(hdl, ZFS_IOC_EVENTS_SEEK, &zc) != 0) {
	switch (errno) {
	case ENOENT:
	error = zfs_error_fmt(hdl, EZFS_NOENT,
	dgettext(TEXT_DOMAIN, "cannot get event"));
	break;

	case ENOMEM:
	error = zfs_error_fmt(hdl, EZFS_NOMEM,
	dgettext(TEXT_DOMAIN, "cannot get event"));
	break;

	default:
	error = zpool_standard_error_fmt(hdl, errno,
	dgettext(TEXT_DOMAIN, "cannot get event"));
	break;
	}
	}

	return (error);
	}

	static void
	zpool_obj_to_path_impl(zpool_handle_t *zhp, uint64_t dsobj, uint64_t obj,
	char *pathname, size_t len, boolean_t always_unmounted)
	{
	zfs_cmd_t zc = {"\0"};
	boolean_t mounted = B_FALSE;
	char *mntpnt = NULL;
	char dsname[ZFS_MAX_DATASET_NAME_LEN];

	if (dsobj == 0) {
	/* special case for the MOS */
	(void) snprintf(pathname, len, "<metadata>:<0x%llx>",
	(longlong_t)obj);
	return;
	}

	/* get the dataset's name */
	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
	zc.zc_obj = dsobj;
	if (zfs_ioctl(zhp->zpool_hdl,
	ZFS_IOC_DSOBJ_TO_DSNAME, &zc) != 0) {
	/* just write out a path of two object numbers */
	(void) snprintf(pathname, len, "<0x%llx>:<0x%llx>",
	(longlong_t)dsobj, (longlong_t)obj);
	return;
	}
	(void) strlcpy(dsname, zc.zc_value, sizeof (dsname));

	/* find out if the dataset is mounted */
	mounted = !always_unmounted && is_mounted(zhp->zpool_hdl, dsname,
	&mntpnt);

	/* get the corrupted object's path */
	(void) strlcpy(zc.zc_name, dsname, sizeof (zc.zc_name));
	zc.zc_obj = obj;
	if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_OBJ_TO_PATH,
	&zc) == 0) {
	if (mounted) {
	(void) snprintf(pathname, len, "%s%s", mntpnt,
	zc.zc_value);
	} else {
	(void) snprintf(pathname, len, "%s:%s",
	dsname, zc.zc_value);
	}
	} else {
	(void) snprintf(pathname, len, "%s:<0x%llx>", dsname,
	(longlong_t)obj);
	}
	free(mntpnt);
	}

	void
	zpool_obj_to_path(zpool_handle_t *zhp, uint64_t dsobj, uint64_t obj,
	char *pathname, size_t len)
	{
	zpool_obj_to_path_impl(zhp, dsobj, obj, pathname, len, B_FALSE);
	}

	void
	zpool_obj_to_path_ds(zpool_handle_t *zhp, uint64_t dsobj, uint64_t obj,
	char *pathname, size_t len)
	{
	zpool_obj_to_path_impl(zhp, dsobj, obj, pathname, len, B_TRUE);
	}
	/*
	* Wait while the specified activity is in progress in the pool.
	*/
	int
	zpool_wait(zpool_handle_t *zhp, zpool_wait_activity_t activity)
	{
	boolean_t missing;

	int error = zpool_wait_status(zhp, activity, &missing, NULL);

	if (missing) {
	(void) zpool_standard_error_fmt(zhp->zpool_hdl, ENOENT,
	dgettext(TEXT_DOMAIN, "error waiting in pool '%s'"),
	zhp->zpool_name);
	return (ENOENT);
	} else {
	return (error);
	}
	}

	/*
	* Wait for the given activity and return the status of the wait (whether or not
	* any waiting was done) in the 'waited' parameter. Non-existent pools are
	* reported via the 'missing' parameter, rather than by printing an error
	* message. This is convenient when this function is called in a loop over a
	* long period of time (as it is, for example, by zpool's wait cmd). In that
	* scenario, a pool being exported or destroyed should be considered a normal
	* event, so we don't want to print an error when we find that the pool doesn't
	* exist.
	*/
	int
	zpool_wait_status(zpool_handle_t *zhp, zpool_wait_activity_t activity,
	boolean_t missing, boolean_t waited)
	{
	int error = lzc_wait(zhp->zpool_name, activity, waited);
	*missing = (error == ENOENT);
	if (*missing)
	return (0);

	if (error != 0) {
	(void) zpool_standard_error_fmt(zhp->zpool_hdl, error,
	dgettext(TEXT_DOMAIN, "error waiting in pool '%s'"),
	zhp->zpool_name);
	}

	return (error);
	}

	int
	zpool_set_bootenv(zpool_handle_t zhp, const nvlist_t envmap)
	{
	int error = lzc_set_bootenv(zhp->zpool_name, envmap);
	if (error != 0) {
	(void) zpool_standard_error_fmt(zhp->zpool_hdl, error,
	dgettext(TEXT_DOMAIN,
	"error setting bootenv in pool '%s'"), zhp->zpool_name);
	}

	return (error);
	}

	int
	zpool_get_bootenv(zpool_handle_t zhp, nvlist_t *nvlp)
	{
	nvlist_t *nvl;
	int error;

	nvl = NULL;
	error = lzc_get_bootenv(zhp->zpool_name, &nvl);
	if (error != 0) {
	(void) zpool_standard_error_fmt(zhp->zpool_hdl, error,
	dgettext(TEXT_DOMAIN,
	"error getting bootenv in pool '%s'"), zhp->zpool_name);
	} else {
	*nvlp = nvl;
	}

	return (error);
	}

	/*
	* Attempt to read and parse feature file(s) (from "compatibility" property).
	* Files contain zpool feature names, comma or whitespace-separated.
	* Comments (# character to next newline) are discarded.
	*
	* Arguments:
	* compatibility : string containing feature filenames
	* features : either NULL or pointer to array of boolean
	* report : either NULL or pointer to string buffer
	* rlen : length of "report" buffer
	*
	* compatibility is NULL (unset), "", "off", "legacy", or list of
	* comma-separated filenames. filenames should either be absolute,
	* or relative to:
	* 1) ZPOOL_SYSCONF_COMPAT_D (eg: /etc/zfs/compatibility.d) or
	* 2) ZPOOL_DATA_COMPAT_D (eg: /usr/share/zfs/compatibility.d).
	* (Unset), "" or "off" => enable all features
	* "legacy" => disable all features
	*
	* Any feature names read from files which match unames in spa_feature_table
	* will have the corresponding boolean set in the features array (if non-NULL).
	* If more than one feature set specified, only features present in all of
	* them will be set.
	*
	* "report" if not NULL will be populated with a suitable status message.
	*
	* Return values:
	* ZPOOL_COMPATIBILITY_OK : files read and parsed ok
	* ZPOOL_COMPATIBILITY_BADFILE : file too big or not a text file
	* ZPOOL_COMPATIBILITY_BADTOKEN : SYSCONF file contains invalid feature name
	* ZPOOL_COMPATIBILITY_WARNTOKEN : DATA file contains invalid feature name
	* ZPOOL_COMPATIBILITY_NOFILES : no feature files found
	*/
	zpool_compat_status_t
	zpool_load_compat(const char compat, boolean_t features, char *report,
	size_t rlen)
	{
	int sdirfd, ddirfd, featfd;
	struct stat fs;
	char *fc;
	char ps, ls, *ws;
	char file, line, *word;

	char l_compat[ZFS_MAXPROPLEN];

	boolean_t ret_nofiles = B_TRUE;
	boolean_t ret_badfile = B_FALSE;
	boolean_t ret_badtoken = B_FALSE;
	boolean_t ret_warntoken = B_FALSE;

	/* special cases (unset), "" and "off" => enable all features */
	if (compat == NULL \|\| compat[0] == '\0' \|\|
	strcmp(compat, ZPOOL_COMPAT_OFF) == 0) {
	if (features != NULL)
	for (uint_t i = 0; i < SPA_FEATURES; i++)
	features[i] = B_TRUE;
	if (report != NULL)
	strlcpy(report, gettext("all features enabled"), rlen);
	return (ZPOOL_COMPATIBILITY_OK);
	}

	/* Final special case "legacy" => disable all features */
	if (strcmp(compat, ZPOOL_COMPAT_LEGACY) == 0) {
	if (features != NULL)
	for (uint_t i = 0; i < SPA_FEATURES; i++)
	features[i] = B_FALSE;
	if (report != NULL)
	strlcpy(report, gettext("all features disabled"), rlen);
	return (ZPOOL_COMPATIBILITY_OK);
	}

	/*
	* Start with all true; will be ANDed with results from each file
	*/
	if (features != NULL)
	for (uint_t i = 0; i < SPA_FEATURES; i++)
	features[i] = B_TRUE;

	char err_badfile[1024] = "";
	char err_badtoken[1024] = "";

	/*
	* We ignore errors from the directory open()
	* as they're only needed if the filename is relative
	* which will be checked during the openat().
	*/

	/* O_PATH safer than O_RDONLY if system allows it */
	#if defined(O_PATH)
	#define ZC_DIR_FLAGS (O_DIRECTORY \| O_CLOEXEC \| O_PATH)
	#else
	#define ZC_DIR_FLAGS (O_DIRECTORY \| O_CLOEXEC \| O_RDONLY)
	#endif

	sdirfd = open(ZPOOL_SYSCONF_COMPAT_D, ZC_DIR_FLAGS);
	ddirfd = open(ZPOOL_DATA_COMPAT_D, ZC_DIR_FLAGS);

	(void) strlcpy(l_compat, compat, ZFS_MAXPROPLEN);

	for (file = strtok_r(l_compat, ",", &ps);
	file != NULL;
	file = strtok_r(NULL, ",", &ps)) {

	boolean_t l_features[SPA_FEATURES];

	enum { Z_SYSCONF, Z_DATA } source;

	/* try sysconfdir first, then datadir */
	source = Z_SYSCONF;
	if ((featfd = openat(sdirfd, file, O_RDONLY \| O_CLOEXEC)) < 0) {
	featfd = openat(ddirfd, file, O_RDONLY \| O_CLOEXEC);
	source = Z_DATA;
	}

	/* File readable and correct size? */
	if (featfd < 0 \|\|
	fstat(featfd, &fs) < 0 \|\|
	fs.st_size < 1 \|\|
	fs.st_size > ZPOOL_COMPAT_MAXSIZE) {
	(void) close(featfd);
	strlcat(err_badfile, file, ZFS_MAXPROPLEN);
	strlcat(err_badfile, " ", ZFS_MAXPROPLEN);
	ret_badfile = B_TRUE;
	continue;
	}

	/* Prefault the file if system allows */
	#if defined(MAP_POPULATE)
	#define ZC_MMAP_FLAGS (MAP_PRIVATE \| MAP_POPULATE)
	#elif defined(MAP_PREFAULT_READ)
	#define ZC_MMAP_FLAGS (MAP_PRIVATE \| MAP_PREFAULT_READ)
	#else
	#define ZC_MMAP_FLAGS (MAP_PRIVATE)
	#endif

	/* private mmap() so we can strtok safely */
	fc = (char *)mmap(NULL, fs.st_size, PROT_READ \| PROT_WRITE,
	ZC_MMAP_FLAGS, featfd, 0);
	(void) close(featfd);

	/* map ok, and last character == newline? */
	if (fc == MAP_FAILED \|\| fc[fs.st_size - 1] != '\n') {
	(void) munmap((void *) fc, fs.st_size);
	strlcat(err_badfile, file, ZFS_MAXPROPLEN);
	strlcat(err_badfile, " ", ZFS_MAXPROPLEN);
	ret_badfile = B_TRUE;
	continue;
	}

	ret_nofiles = B_FALSE;

	for (uint_t i = 0; i < SPA_FEATURES; i++)
	l_features[i] = B_FALSE;

	/* replace final newline with NULL to ensure string ends */
	fc[fs.st_size - 1] = '\0';

	for (line = strtok_r(fc, "\n", &ls);
	line != NULL;
	line = strtok_r(NULL, "\n", &ls)) {
	/* discard comments */
	*(strchrnul(line, '#')) = '\0';

	for (word = strtok_r(line, ", \t", &ws);
	word != NULL;
	word = strtok_r(NULL, ", \t", &ws)) {
	/* Find matching feature name */
	uint_t f;
	for (f = 0; f < SPA_FEATURES; f++) {
	zfeature_info_t *fi =
	&spa_feature_table[f];
	if (strcmp(word, fi->fi_uname) == 0) {
	l_features[f] = B_TRUE;
	break;
	}
	}
	if (f < SPA_FEATURES)
	continue;

	/* found an unrecognized word */
	/* lightly sanitize it */
	if (strlen(word) > 32)
	word[32] = '\0';
	for (char c = word; c != '\0'; c++)
	if (!isprint(*c))
	*c = '?';

	strlcat(err_badtoken, word, ZFS_MAXPROPLEN);
	strlcat(err_badtoken, " ", ZFS_MAXPROPLEN);
	if (source == Z_SYSCONF)
	ret_badtoken = B_TRUE;
	else
	ret_warntoken = B_TRUE;
	}
	}
	(void) munmap((void *) fc, fs.st_size);

	if (features != NULL)
	for (uint_t i = 0; i < SPA_FEATURES; i++)
	features[i] &= l_features[i];
	}
	(void) close(sdirfd);
	(void) close(ddirfd);

	/* Return the most serious error */
	if (ret_badfile) {
	if (report != NULL)
	snprintf(report, rlen, gettext("could not read/"
	"parse feature file(s): %s"), err_badfile);
	return (ZPOOL_COMPATIBILITY_BADFILE);
	}
	if (ret_nofiles) {
	if (report != NULL)
	strlcpy(report,
	gettext("no valid compatibility files specified"),
	rlen);
	return (ZPOOL_COMPATIBILITY_NOFILES);
	}
	if (ret_badtoken) {
	if (report != NULL)
	snprintf(report, rlen, gettext("invalid feature "
	"name(s) in local compatibility files: %s"),
	err_badtoken);
	return (ZPOOL_COMPATIBILITY_BADTOKEN);
	}
	if (ret_warntoken) {
	if (report != NULL)
	snprintf(report, rlen, gettext("unrecognized feature "
	"name(s) in distribution compatibility files: %s"),
	err_badtoken);
	return (ZPOOL_COMPATIBILITY_WARNTOKEN);
	}
	if (report != NULL)
	strlcpy(report, gettext("compatibility set ok"), rlen);
	return (ZPOOL_COMPATIBILITY_OK);
	}
	diff --git a/sys/contrib/openzfs/lib/libzfs/libzfs_sendrecv.c b/sys/contrib/openzfs/lib/libzfs/libzfs_sendrecv.c
	index 2ba673fd09f7..136255786cc1 100644
	--- a/sys/contrib/openzfs/lib/libzfs/libzfs_sendrecv.c
	+++ b/sys/contrib/openzfs/lib/libzfs/libzfs_sendrecv.c
	@@ -1,5186 +1,5187 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2011, 2020 by Delphix. All rights reserved.
	* Copyright (c) 2012, Joyent, Inc. All rights reserved.
	* Copyright (c) 2012 Pawel Jakub Dawidek <pawel@dawidek.net>.
	* All rights reserved
	* Copyright (c) 2013 Steven Hartland. All rights reserved.
	* Copyright 2015, OmniTI Computer Consulting, Inc. All rights reserved.
	* Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>
	* Copyright (c) 2018, loli10K <ezomori.nozomu@gmail.com>. All rights reserved.
	* Copyright (c) 2019 Datto Inc.
	*/

	#include <assert.h>
	#include <ctype.h>
	#include <errno.h>
	#include <libintl.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <strings.h>
	#include <unistd.h>
	#include <stddef.h>
	#include <fcntl.h>
	#include <sys/mount.h>
	#include <sys/mntent.h>
	#include <sys/mnttab.h>
	#include <sys/avl.h>
	#include <sys/debug.h>
	#include <sys/stat.h>
	#include <pthread.h>
	#include <umem.h>
	#include <time.h>

	#include <libzfs.h>
	#include <libzfs_core.h>
	#include <libzutil.h>

	#include "zfs_namecheck.h"
	#include "zfs_prop.h"
	#include "zfs_fletcher.h"
	#include "libzfs_impl.h"
	#include <cityhash.h>
	#include <zlib.h>
	#include <sys/zio_checksum.h>
	#include <sys/dsl_crypt.h>
	#include <sys/ddt.h>
	#include <sys/socket.h>
	#include <sys/sha2.h>

	static int zfs_receive_impl(libzfs_handle_t , const char , const char *,
	recvflags_t , int, const char , nvlist_t , avl_tree_t , char **,
	const char , nvlist_t );
	static int guid_to_name_redact_snaps(libzfs_handle_t hdl, const char parent,
	uint64_t guid, boolean_t bookmark_ok, uint64_t *redact_snap_guids,
	uint64_t num_redact_snaps, char *name);
	static int guid_to_name(libzfs_handle_t , const char ,
	uint64_t, boolean_t, char *);

	typedef struct progress_arg {
	zfs_handle_t *pa_zhp;
	int pa_fd;
	boolean_t pa_parsable;
	boolean_t pa_estimate;
	int pa_verbosity;
	} progress_arg_t;

	static int
	dump_record(dmu_replay_record_t drr, void payload, int payload_len,
	zio_cksum_t *zc, int outfd)
	{
	ASSERT3U(offsetof(dmu_replay_record_t, drr_u.drr_checksum.drr_checksum),
	==, sizeof (dmu_replay_record_t) - sizeof (zio_cksum_t));
	fletcher_4_incremental_native(drr,
	offsetof(dmu_replay_record_t, drr_u.drr_checksum.drr_checksum), zc);
	if (drr->drr_type != DRR_BEGIN) {
	ASSERT(ZIO_CHECKSUM_IS_ZERO(&drr->drr_u.
	drr_checksum.drr_checksum));
	drr->drr_u.drr_checksum.drr_checksum = *zc;
	}
	fletcher_4_incremental_native(&drr->drr_u.drr_checksum.drr_checksum,
	sizeof (zio_cksum_t), zc);
	if (write(outfd, drr, sizeof (*drr)) == -1)
	return (errno);
	if (payload_len != 0) {
	fletcher_4_incremental_native(payload, payload_len, zc);
	if (write(outfd, payload, payload_len) == -1)
	return (errno);
	}
	return (0);
	}

	/*
	* Routines for dealing with the AVL tree of fs-nvlists
	*/
	typedef struct fsavl_node {
	avl_node_t fn_node;
	nvlist_t *fn_nvfs;
	char *fn_snapname;
	uint64_t fn_guid;
	} fsavl_node_t;

	static int
	fsavl_compare(const void arg1, const void arg2)
	{
	const fsavl_node_t fn1 = (const fsavl_node_t )arg1;
	const fsavl_node_t fn2 = (const fsavl_node_t )arg2;

	return (TREE_CMP(fn1->fn_guid, fn2->fn_guid));
	}

	/*
	* Given the GUID of a snapshot, find its containing filesystem and
	* (optionally) name.
	*/
	static nvlist_t *
	fsavl_find(avl_tree_t avl, uint64_t snapguid, char *snapname)
	{
	fsavl_node_t fn_find;
	fsavl_node_t *fn;

	fn_find.fn_guid = snapguid;

	fn = avl_find(avl, &fn_find, NULL);
	if (fn) {
	if (snapname)
	*snapname = fn->fn_snapname;
	return (fn->fn_nvfs);
	}
	return (NULL);
	}

	static void
	fsavl_destroy(avl_tree_t *avl)
	{
	fsavl_node_t *fn;
	void *cookie;

	if (avl == NULL)
	return;

	cookie = NULL;
	while ((fn = avl_destroy_nodes(avl, &cookie)) != NULL)
	free(fn);
	avl_destroy(avl);
	free(avl);
	}

	/*
	* Given an nvlist, produce an avl tree of snapshots, ordered by guid
	*/
	static avl_tree_t *
	fsavl_create(nvlist_t *fss)
	{
	avl_tree_t *fsavl;
	nvpair_t *fselem = NULL;

	if ((fsavl = malloc(sizeof (avl_tree_t))) == NULL)
	return (NULL);

	avl_create(fsavl, fsavl_compare, sizeof (fsavl_node_t),
	offsetof(fsavl_node_t, fn_node));

	while ((fselem = nvlist_next_nvpair(fss, fselem)) != NULL) {
	nvlist_t nvfs, snaps;
	nvpair_t *snapelem = NULL;

	nvfs = fnvpair_value_nvlist(fselem);
	snaps = fnvlist_lookup_nvlist(nvfs, "snaps");

	while ((snapelem =
	nvlist_next_nvpair(snaps, snapelem)) != NULL) {
	fsavl_node_t *fn;
	uint64_t guid;

	guid = fnvpair_value_uint64(snapelem);
	if ((fn = malloc(sizeof (fsavl_node_t))) == NULL) {
	fsavl_destroy(fsavl);
	return (NULL);
	}
	fn->fn_nvfs = nvfs;
	fn->fn_snapname = nvpair_name(snapelem);
	fn->fn_guid = guid;

	/*
	* Note: if there are multiple snaps with the
	* same GUID, we ignore all but one.
	*/
	if (avl_find(fsavl, fn, NULL) == NULL)
	avl_add(fsavl, fn);
	else
	free(fn);
	}
	}

	return (fsavl);
	}

	/*
	* Routines for dealing with the giant nvlist of fs-nvlists, etc.
	*/
	typedef struct send_data {
	/*
	* assigned inside every recursive call,
	* restored from *_save on return:
	*
	* guid of fromsnap snapshot in parent dataset
	* txg of fromsnap snapshot in current dataset
	* txg of tosnap snapshot in current dataset
	*/

	uint64_t parent_fromsnap_guid;
	uint64_t fromsnap_txg;
	uint64_t tosnap_txg;

	/* the nvlists get accumulated during depth-first traversal */
	nvlist_t *parent_snaps;
	nvlist_t *fss;
	nvlist_t *snapprops;
	nvlist_t snapholds; / user holds */

	/* send-receive configuration, does not change during traversal */
	const char *fsname;
	const char *fromsnap;
	const char *tosnap;
	boolean_t recursive;
	boolean_t raw;
	boolean_t doall;
	boolean_t replicate;
	boolean_t skipmissing;
	boolean_t verbose;
	boolean_t backup;
	boolean_t seenfrom;
	boolean_t seento;
	boolean_t holds; /* were holds requested with send -h */
	boolean_t props;

	/*
	* The header nvlist is of the following format:
	* {
	* "tosnap" -> string
	* "fromsnap" -> string (if incremental)
	* "fss" -> {
	* id -> {
	*
	* "name" -> string (full name; for debugging)
	* "parentfromsnap" -> number (guid of fromsnap in parent)
	*
	* "props" -> { name -> value (only if set here) }
	* "snaps" -> { name (lastname) -> number (guid) }
	* "snapprops" -> { name (lastname) -> { name -> value } }
	* "snapholds" -> { name (lastname) -> { holdname -> crtime } }
	*
	* "origin" -> number (guid) (if clone)
	* "is_encroot" -> boolean
	* "sent" -> boolean (not on-disk)
	* }
	* }
	* }
	*
	*/
	} send_data_t;

	static void
	send_iterate_prop(zfs_handle_t zhp, boolean_t received_only, nvlist_t nv);

	static int
	send_iterate_snap(zfs_handle_t zhp, void arg)
	{
	send_data_t *sd = arg;
	uint64_t guid = zhp->zfs_dmustats.dds_guid;
	uint64_t txg = zhp->zfs_dmustats.dds_creation_txg;
	char *snapname;
	nvlist_t *nv;
	boolean_t isfromsnap, istosnap, istosnapwithnofrom;

	snapname = strrchr(zhp->zfs_name, '@')+1;
	isfromsnap = (sd->fromsnap != NULL &&
	strcmp(sd->fromsnap, snapname) == 0);
	istosnap = (sd->tosnap != NULL && (strcmp(sd->tosnap, snapname) == 0));
	istosnapwithnofrom = (istosnap && sd->fromsnap == NULL);

	if (sd->tosnap_txg != 0 && txg > sd->tosnap_txg) {
	if (sd->verbose) {
	(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
	"skipping snapshot %s because it was created "
	"after the destination snapshot (%s)\n"),
	zhp->zfs_name, sd->tosnap);
	}
	zfs_close(zhp);
	return (0);
	}

	fnvlist_add_uint64(sd->parent_snaps, snapname, guid);
	/*
	* NB: if there is no fromsnap here (it's a newly created fs in
	* an incremental replication), we will substitute the tosnap.
	*/
	if (isfromsnap \|\| (sd->parent_fromsnap_guid == 0 && istosnap)) {
	sd->parent_fromsnap_guid = guid;
	}

	if (!sd->recursive) {

	/*
	* To allow a doall stream to work properly
	* with a NULL fromsnap
	*/
	if (sd->doall && sd->fromsnap == NULL && !sd->seenfrom) {
	sd->seenfrom = B_TRUE;
	}

	if (!sd->seenfrom && isfromsnap) {
	sd->seenfrom = B_TRUE;
	zfs_close(zhp);
	return (0);
	}

	if ((sd->seento \|\| !sd->seenfrom) && !istosnapwithnofrom) {
	zfs_close(zhp);
	return (0);
	}

	if (istosnap)
	sd->seento = B_TRUE;
	}

	nv = fnvlist_alloc();
	send_iterate_prop(zhp, sd->backup, nv);
	fnvlist_add_nvlist(sd->snapprops, snapname, nv);
	fnvlist_free(nv);
	if (sd->holds) {
	nvlist_t *holds = fnvlist_alloc();
	int err = lzc_get_holds(zhp->zfs_name, &holds);
	if (err == 0) {
	fnvlist_add_nvlist(sd->snapholds, snapname, holds);
	}
	fnvlist_free(holds);
	}

	zfs_close(zhp);
	return (0);
	}

	static void
	send_iterate_prop(zfs_handle_t zhp, boolean_t received_only, nvlist_t nv)
	{
	nvlist_t *props = NULL;
	nvpair_t *elem = NULL;

	if (received_only)
	props = zfs_get_recvd_props(zhp);
	else
	props = zhp->zfs_props;

	while ((elem = nvlist_next_nvpair(props, elem)) != NULL) {
	char *propname = nvpair_name(elem);
	zfs_prop_t prop = zfs_name_to_prop(propname);
	nvlist_t *propnv;

	if (!zfs_prop_user(propname)) {
	/*
	* Realistically, this should never happen. However,
	* we want the ability to add DSL properties without
	* needing to make incompatible version changes. We
	* need to ignore unknown properties to allow older
	* software to still send datasets containing these
	* properties, with the unknown properties elided.
	*/
	if (prop == ZPROP_INVAL)
	continue;

	if (zfs_prop_readonly(prop))
	continue;
	}

	verify(nvpair_value_nvlist(elem, &propnv) == 0);
	if (prop == ZFS_PROP_QUOTA \|\| prop == ZFS_PROP_RESERVATION \|\|
	prop == ZFS_PROP_REFQUOTA \|\|
	prop == ZFS_PROP_REFRESERVATION) {
	char *source;
	uint64_t value;
	verify(nvlist_lookup_uint64(propnv,
	ZPROP_VALUE, &value) == 0);
	if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT)
	continue;
	/*
	* May have no source before SPA_VERSION_RECVD_PROPS,
	* but is still modifiable.
	*/
	if (nvlist_lookup_string(propnv,
	ZPROP_SOURCE, &source) == 0) {
	if ((strcmp(source, zhp->zfs_name) != 0) &&
	(strcmp(source,
	ZPROP_SOURCE_VAL_RECVD) != 0))
	continue;
	}
	} else {
	char *source;
	if (nvlist_lookup_string(propnv,
	ZPROP_SOURCE, &source) != 0)
	continue;
	if ((strcmp(source, zhp->zfs_name) != 0) &&
	(strcmp(source, ZPROP_SOURCE_VAL_RECVD) != 0))
	continue;
	}

	if (zfs_prop_user(propname) \|\|
	zfs_prop_get_type(prop) == PROP_TYPE_STRING) {
	char *value;
	value = fnvlist_lookup_string(propnv, ZPROP_VALUE);
	fnvlist_add_string(nv, propname, value);
	} else {
	uint64_t value;
	value = fnvlist_lookup_uint64(propnv, ZPROP_VALUE);
	fnvlist_add_uint64(nv, propname, value);
	}
	}
	}

	/*
	* returns snapshot creation txg
	* and returns 0 if the snapshot does not exist
	*/
	static uint64_t
	get_snap_txg(libzfs_handle_t hdl, const char fs, const char *snap)
	{
	char name[ZFS_MAX_DATASET_NAME_LEN];
	uint64_t txg = 0;

	if (fs == NULL \|\| fs[0] == '\0' \|\| snap == NULL \|\| snap[0] == '\0')
	return (txg);

	(void) snprintf(name, sizeof (name), "%s@%s", fs, snap);
	if (zfs_dataset_exists(hdl, name, ZFS_TYPE_SNAPSHOT)) {
	zfs_handle_t *zhp = zfs_open(hdl, name, ZFS_TYPE_SNAPSHOT);
	if (zhp != NULL) {
	txg = zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG);
	zfs_close(zhp);
	}
	}

	return (txg);
	}

	/*
	* recursively generate nvlists describing datasets. See comment
	* for the data structure send_data_t above for description of contents
	* of the nvlist.
	*/
	static int
	send_iterate_fs(zfs_handle_t zhp, void arg)
	{
	send_data_t *sd = arg;
	nvlist_t nvfs = NULL, nv = NULL;
	int rv = 0;
	uint64_t min_txg = 0, max_txg = 0;
	uint64_t parent_fromsnap_guid_save = sd->parent_fromsnap_guid;
	uint64_t fromsnap_txg_save = sd->fromsnap_txg;
	uint64_t tosnap_txg_save = sd->tosnap_txg;
	uint64_t txg = zhp->zfs_dmustats.dds_creation_txg;
	uint64_t guid = zhp->zfs_dmustats.dds_guid;
	uint64_t fromsnap_txg, tosnap_txg;
	char guidstring[64];

	fromsnap_txg = get_snap_txg(zhp->zfs_hdl, zhp->zfs_name, sd->fromsnap);
	if (fromsnap_txg != 0)
	sd->fromsnap_txg = fromsnap_txg;

	tosnap_txg = get_snap_txg(zhp->zfs_hdl, zhp->zfs_name, sd->tosnap);
	if (tosnap_txg != 0)
	sd->tosnap_txg = tosnap_txg;

	/*
	* on the send side, if the current dataset does not have tosnap,
	* perform two additional checks:
	*
	* - skip sending the current dataset if it was created later than
	* the parent tosnap
	* - return error if the current dataset was created earlier than
	* the parent tosnap, unless --skip-missing specified. Then
	* just print a warning
	*/
	if (sd->tosnap != NULL && tosnap_txg == 0) {
	if (sd->tosnap_txg != 0 && txg > sd->tosnap_txg) {
	if (sd->verbose) {
	(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
	"skipping dataset %s: snapshot %s does "
	"not exist\n"), zhp->zfs_name, sd->tosnap);
	}
	} else if (sd->skipmissing) {
	(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
	"WARNING: skipping dataset %s and its children:"
	" snapshot %s does not exist\n"),
	zhp->zfs_name, sd->tosnap);
	} else {
	(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
	"cannot send %s@%s%s: snapshot %s@%s does not "
	"exist\n"), sd->fsname, sd->tosnap, sd->recursive ?
	dgettext(TEXT_DOMAIN, " recursively") : "",
	zhp->zfs_name, sd->tosnap);
	rv = EZFS_NOENT;
	}
	goto out;
	}

	nvfs = fnvlist_alloc();
	fnvlist_add_string(nvfs, "name", zhp->zfs_name);
	fnvlist_add_uint64(nvfs, "parentfromsnap",
	sd->parent_fromsnap_guid);

	if (zhp->zfs_dmustats.dds_origin[0]) {
	zfs_handle_t *origin = zfs_open(zhp->zfs_hdl,
	zhp->zfs_dmustats.dds_origin, ZFS_TYPE_SNAPSHOT);
	if (origin == NULL) {
	rv = -1;
	goto out;
	}
	fnvlist_add_uint64(nvfs, "origin",
	origin->zfs_dmustats.dds_guid);

	zfs_close(origin);
	}

	/* iterate over props */
	if (sd->props \|\| sd->backup \|\| sd->recursive) {
	nv = fnvlist_alloc();
	send_iterate_prop(zhp, sd->backup, nv);
	}
	if (zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) != ZIO_CRYPT_OFF) {
	boolean_t encroot;

	/* determine if this dataset is an encryption root */
	if (zfs_crypto_get_encryption_root(zhp, &encroot, NULL) != 0) {
	rv = -1;
	goto out;
	}

	if (encroot)
	fnvlist_add_boolean(nvfs, "is_encroot");

	/*
	* Encrypted datasets can only be sent with properties if
	* the raw flag is specified because the receive side doesn't
	* currently have a mechanism for recursively asking the user
	* for new encryption parameters.
	*/
	if (!sd->raw) {
	(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
	"cannot send %s@%s: encrypted dataset %s may not "
	"be sent with properties without the raw flag\n"),
	sd->fsname, sd->tosnap, zhp->zfs_name);
	rv = -1;
	goto out;
	}

	}

	if (nv != NULL)
	fnvlist_add_nvlist(nvfs, "props", nv);

	/* iterate over snaps, and set sd->parent_fromsnap_guid */
	sd->parent_fromsnap_guid = 0;
	sd->parent_snaps = fnvlist_alloc();
	sd->snapprops = fnvlist_alloc();
	if (sd->holds)
	sd->snapholds = fnvlist_alloc();

	/*
	* If this is a "doall" send, a replicate send or we're just trying
	* to gather a list of previous snapshots, iterate through all the
	* snaps in the txg range. Otherwise just look at the one we're
	* interested in.
	*/
	if (sd->doall \|\| sd->replicate \|\| sd->tosnap == NULL) {
	if (!sd->replicate && fromsnap_txg != 0)
	min_txg = fromsnap_txg;
	if (!sd->replicate && tosnap_txg != 0)
	max_txg = tosnap_txg;
	(void) zfs_iter_snapshots_sorted(zhp, send_iterate_snap, sd,
	min_txg, max_txg);
	} else {
	char snapname[MAXPATHLEN] = { 0 };
	zfs_handle_t *snap;

	(void) snprintf(snapname, sizeof (snapname), "%s@%s",
	zhp->zfs_name, sd->tosnap);
	if (sd->fromsnap != NULL)
	sd->seenfrom = B_TRUE;
	snap = zfs_open(zhp->zfs_hdl, snapname,
	ZFS_TYPE_SNAPSHOT);
	if (snap != NULL)
	(void) send_iterate_snap(snap, sd);
	}

	fnvlist_add_nvlist(nvfs, "snaps", sd->parent_snaps);
	fnvlist_add_nvlist(nvfs, "snapprops", sd->snapprops);
	if (sd->holds)
	fnvlist_add_nvlist(nvfs, "snapholds", sd->snapholds);
	fnvlist_free(sd->parent_snaps);
	fnvlist_free(sd->snapprops);
	fnvlist_free(sd->snapholds);

	/* Do not allow the size of the properties list to exceed the limit */
	if ((fnvlist_size(nvfs) + fnvlist_size(sd->fss)) >
	zhp->zfs_hdl->libzfs_max_nvlist) {
	(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
	"warning: cannot send %s@%s: the size of the list of "
	"snapshots and properties is too large to be received "
	"successfully.\n"
	"Select a smaller number of snapshots to send.\n"),
	zhp->zfs_name, sd->tosnap);
	rv = EZFS_NOSPC;
	goto out;
	}
	/* add this fs to nvlist */
	(void) snprintf(guidstring, sizeof (guidstring),
	"0x%llx", (longlong_t)guid);
	fnvlist_add_nvlist(sd->fss, guidstring, nvfs);

	/* iterate over children */
	if (sd->recursive)
	rv = zfs_iter_filesystems(zhp, send_iterate_fs, sd);

	out:
	sd->parent_fromsnap_guid = parent_fromsnap_guid_save;
	sd->fromsnap_txg = fromsnap_txg_save;
	sd->tosnap_txg = tosnap_txg_save;
	fnvlist_free(nv);
	fnvlist_free(nvfs);

	zfs_close(zhp);
	return (rv);
	}

	static int
	gather_nvlist(libzfs_handle_t hdl, const char fsname, const char *fromsnap,
	const char *tosnap, boolean_t recursive, boolean_t raw, boolean_t doall,
	boolean_t replicate, boolean_t skipmissing, boolean_t verbose,
	boolean_t backup, boolean_t holds, boolean_t props, nvlist_t **nvlp,
	avl_tree_t **avlp)
	{
	zfs_handle_t *zhp;
	send_data_t sd = { 0 };
	int error;

	zhp = zfs_open(hdl, fsname, ZFS_TYPE_FILESYSTEM \| ZFS_TYPE_VOLUME);
	if (zhp == NULL)
	return (EZFS_BADTYPE);

	sd.fss = fnvlist_alloc();
	sd.fsname = fsname;
	sd.fromsnap = fromsnap;
	sd.tosnap = tosnap;
	sd.recursive = recursive;
	sd.raw = raw;
	sd.doall = doall;
	sd.replicate = replicate;
	sd.skipmissing = skipmissing;
	sd.verbose = verbose;
	sd.backup = backup;
	sd.holds = holds;
	sd.props = props;

	if ((error = send_iterate_fs(zhp, &sd)) != 0) {
	fnvlist_free(sd.fss);
	if (avlp != NULL)
	*avlp = NULL;
	*nvlp = NULL;
	return (error);
	}

	if (avlp != NULL && (*avlp = fsavl_create(sd.fss)) == NULL) {
	fnvlist_free(sd.fss);
	*nvlp = NULL;
	return (EZFS_NOMEM);
	}

	*nvlp = sd.fss;
	return (0);
	}

	/*
	* Routines specific to "zfs send"
	*/
	typedef struct send_dump_data {
	/* these are all just the short snapname (the part after the @) */
	const char *fromsnap;
	const char *tosnap;
	char prevsnap[ZFS_MAX_DATASET_NAME_LEN];
	uint64_t prevsnap_obj;
	boolean_t seenfrom, seento, replicate, doall, fromorigin;
	boolean_t dryrun, parsable, progress, embed_data, std_out;
	boolean_t large_block, compress, raw, holds;
	int outfd;
	boolean_t err;
	nvlist_t *fss;
	nvlist_t *snapholds;
	avl_tree_t *fsavl;
	snapfilter_cb_t *filter_cb;
	void *filter_cb_arg;
	nvlist_t *debugnv;
	char holdtag[ZFS_MAX_DATASET_NAME_LEN];
	int cleanup_fd;
	int verbosity;
	uint64_t size;
	} send_dump_data_t;

	static int
	zfs_send_space(zfs_handle_t zhp, const char snapname, const char *from,
	enum lzc_send_flags flags, uint64_t *spacep)
	{
	libzfs_handle_t *hdl = zhp->zfs_hdl;
	int error;

	assert(snapname != NULL);
	error = lzc_send_space(snapname, from, flags, spacep);

	if (error != 0) {
	char errbuf[1024];
	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
	"warning: cannot estimate space for '%s'"), snapname);

	switch (error) {
	case EXDEV:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"not an earlier snapshot from the same fs"));
	return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf));

	case ENOENT:
	if (zfs_dataset_exists(hdl, snapname,
	ZFS_TYPE_SNAPSHOT)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"incremental source (%s) does not exist"),
	snapname);
	}
	return (zfs_error(hdl, EZFS_NOENT, errbuf));

	case EDQUOT:
	case EFBIG:
	case EIO:
	case ENOLINK:
	case ENOSPC:
	case ENOSTR:
	case ENXIO:
	case EPIPE:
	case ERANGE:
	case EFAULT:
	case EROFS:
	case EINVAL:
	zfs_error_aux(hdl, "%s", strerror(error));
	return (zfs_error(hdl, EZFS_BADBACKUP, errbuf));

	default:
	return (zfs_standard_error(hdl, error, errbuf));
	}
	}

	return (0);
	}

	/*
	* Dumps a backup of the given snapshot (incremental from fromsnap if it's not
	* NULL) to the file descriptor specified by outfd.
	*/
	static int
	dump_ioctl(zfs_handle_t zhp, const char fromsnap, uint64_t fromsnap_obj,
	boolean_t fromorigin, int outfd, enum lzc_send_flags flags,
	nvlist_t *debugnv)
	{
	zfs_cmd_t zc = {"\0"};
	libzfs_handle_t *hdl = zhp->zfs_hdl;
	nvlist_t *thisdbg;

	assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT);
	assert(fromsnap_obj == 0 \|\| !fromorigin);

	(void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
	zc.zc_cookie = outfd;
	zc.zc_obj = fromorigin;
	zc.zc_sendobj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID);
	zc.zc_fromobj = fromsnap_obj;
	zc.zc_flags = flags;

	thisdbg = fnvlist_alloc();
	if (fromsnap && fromsnap[0] != '\0') {
	fnvlist_add_string(thisdbg, "fromsnap", fromsnap);
	}

	if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SEND, &zc) != 0) {
	char errbuf[1024];
	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
	"warning: cannot send '%s'"), zhp->zfs_name);

	fnvlist_add_uint64(thisdbg, "error", errno);
	if (debugnv) {
	fnvlist_add_nvlist(debugnv, zhp->zfs_name, thisdbg);
	}
	fnvlist_free(thisdbg);

	switch (errno) {
	case EXDEV:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"not an earlier snapshot from the same fs"));
	return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf));

	case EACCES:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"source key must be loaded"));
	return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf));

	case ENOENT:
	if (zfs_dataset_exists(hdl, zc.zc_name,
	ZFS_TYPE_SNAPSHOT)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"incremental source (@%s) does not exist"),
	zc.zc_value);
	}
	return (zfs_error(hdl, EZFS_NOENT, errbuf));

	case EDQUOT:
	case EFBIG:
	case EIO:
	case ENOLINK:
	case ENOSPC:
	case ENOSTR:
	case ENXIO:
	case EPIPE:
	case ERANGE:
	case EFAULT:
	case EROFS:
	+ case EINVAL:
	zfs_error_aux(hdl, "%s", strerror(errno));
	return (zfs_error(hdl, EZFS_BADBACKUP, errbuf));

	default:
	return (zfs_standard_error(hdl, errno, errbuf));
	}
	}

	if (debugnv)
	fnvlist_add_nvlist(debugnv, zhp->zfs_name, thisdbg);
	fnvlist_free(thisdbg);

	return (0);
	}

	static void
	gather_holds(zfs_handle_t zhp, send_dump_data_t sdd)
	{
	assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT);

	/*
	* zfs_send() only sets snapholds for sends that need them,
	* e.g. replication and doall.
	*/
	if (sdd->snapholds == NULL)
	return;

	fnvlist_add_string(sdd->snapholds, zhp->zfs_name, sdd->holdtag);
	}

	int
	zfs_send_progress(zfs_handle_t zhp, int fd, uint64_t bytes_written,
	uint64_t *blocks_visited)
	{
	zfs_cmd_t zc = {"\0"};

	(void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
	zc.zc_cookie = fd;
	if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SEND_PROGRESS, &zc) != 0)
	return (errno);
	if (bytes_written != NULL)
	*bytes_written = zc.zc_cookie;
	if (blocks_visited != NULL)
	*blocks_visited = zc.zc_objset_type;
	return (0);
	}

	static void *
	send_progress_thread(void *arg)
	{
	progress_arg_t *pa = arg;
	zfs_handle_t *zhp = pa->pa_zhp;
	uint64_t bytes;
	uint64_t blocks;
	char buf[16];
	time_t t;
	struct tm *tm;
	boolean_t firstloop = B_TRUE;

	/*
	* Print the progress from ZFS_IOC_SEND_PROGRESS every second.
	*/
	for (;;) {
	int err;
	(void) sleep(1);
	if ((err = zfs_send_progress(zhp, pa->pa_fd, &bytes,
	&blocks)) != 0) {
	if (err == EINTR \|\| err == ENOENT)
	return ((void *)0);
	return ((void *)(uintptr_t)err);
	}

	if (firstloop && !pa->pa_parsable) {
	(void) fprintf(stderr,
	"TIME %s %sSNAPSHOT %s\n",
	pa->pa_estimate ? "BYTES" : " SENT",
	pa->pa_verbosity >= 2 ? " BLOCKS " : "",
	zhp->zfs_name);
	firstloop = B_FALSE;
	}

	(void) time(&t);
	tm = localtime(&t);

	if (pa->pa_verbosity >= 2 && pa->pa_parsable) {
	(void) fprintf(stderr,
	"%02d:%02d:%02d\t%llu\t%llu\t%s\n",
	tm->tm_hour, tm->tm_min, tm->tm_sec,
	(u_longlong_t)bytes, (u_longlong_t)blocks,
	zhp->zfs_name);
	} else if (pa->pa_verbosity >= 2) {
	zfs_nicenum(bytes, buf, sizeof (buf));
	(void) fprintf(stderr,
	"%02d:%02d:%02d %5s %8llu %s\n",
	tm->tm_hour, tm->tm_min, tm->tm_sec,
	buf, (u_longlong_t)blocks, zhp->zfs_name);
	} else if (pa->pa_parsable) {
	(void) fprintf(stderr, "%02d:%02d:%02d\t%llu\t%s\n",
	tm->tm_hour, tm->tm_min, tm->tm_sec,
	(u_longlong_t)bytes, zhp->zfs_name);
	} else {
	zfs_nicebytes(bytes, buf, sizeof (buf));
	(void) fprintf(stderr, "%02d:%02d:%02d %5s %s\n",
	tm->tm_hour, tm->tm_min, tm->tm_sec,
	buf, zhp->zfs_name);
	}
	}
	}

	static void
	send_print_verbose(FILE fout, const char tosnap, const char *fromsnap,
	uint64_t size, boolean_t parsable)
	{
	if (parsable) {
	if (fromsnap != NULL) {
	(void) fprintf(fout, "incremental\t%s\t%s",
	fromsnap, tosnap);
	} else {
	(void) fprintf(fout, "full\t%s",
	tosnap);
	}
	} else {
	if (fromsnap != NULL) {
	if (strchr(fromsnap, '@') == NULL &&
	strchr(fromsnap, '#') == NULL) {
	(void) fprintf(fout, dgettext(TEXT_DOMAIN,
	"send from @%s to %s"),
	fromsnap, tosnap);
	} else {
	(void) fprintf(fout, dgettext(TEXT_DOMAIN,
	"send from %s to %s"),
	fromsnap, tosnap);
	}
	} else {
	(void) fprintf(fout, dgettext(TEXT_DOMAIN,
	"full send of %s"),
	tosnap);
	}
	}

	if (parsable) {
	(void) fprintf(fout, "\t%llu",
	(longlong_t)size);
	} else if (size != 0) {
	char buf[16];
	zfs_nicebytes(size, buf, sizeof (buf));
	(void) fprintf(fout, dgettext(TEXT_DOMAIN,
	" estimated size is %s"), buf);
	}
	(void) fprintf(fout, "\n");
	}

	static int
	dump_snapshot(zfs_handle_t zhp, void arg)
	{
	send_dump_data_t *sdd = arg;
	progress_arg_t pa = { 0 };
	pthread_t tid;
	char *thissnap;
	enum lzc_send_flags flags = 0;
	int err;
	boolean_t isfromsnap, istosnap, fromorigin;
	boolean_t exclude = B_FALSE;
	FILE *fout = sdd->std_out ? stdout : stderr;

	err = 0;
	thissnap = strchr(zhp->zfs_name, '@') + 1;
	isfromsnap = (sdd->fromsnap != NULL &&
	strcmp(sdd->fromsnap, thissnap) == 0);

	if (!sdd->seenfrom && isfromsnap) {
	gather_holds(zhp, sdd);
	sdd->seenfrom = B_TRUE;
	(void) strlcpy(sdd->prevsnap, thissnap,
	sizeof (sdd->prevsnap));
	sdd->prevsnap_obj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID);
	zfs_close(zhp);
	return (0);
	}

	if (sdd->seento \|\| !sdd->seenfrom) {
	zfs_close(zhp);
	return (0);
	}

	istosnap = (strcmp(sdd->tosnap, thissnap) == 0);
	if (istosnap)
	sdd->seento = B_TRUE;

	if (sdd->large_block)
	flags \|= LZC_SEND_FLAG_LARGE_BLOCK;
	if (sdd->embed_data)
	flags \|= LZC_SEND_FLAG_EMBED_DATA;
	if (sdd->compress)
	flags \|= LZC_SEND_FLAG_COMPRESS;
	if (sdd->raw)
	flags \|= LZC_SEND_FLAG_RAW;

	if (!sdd->doall && !isfromsnap && !istosnap) {
	if (sdd->replicate) {
	char *snapname;
	nvlist_t *snapprops;
	/*
	* Filter out all intermediate snapshots except origin
	* snapshots needed to replicate clones.
	*/
	nvlist_t *nvfs = fsavl_find(sdd->fsavl,
	zhp->zfs_dmustats.dds_guid, &snapname);

	snapprops = fnvlist_lookup_nvlist(nvfs, "snapprops");
	snapprops = fnvlist_lookup_nvlist(snapprops, thissnap);
	exclude = !nvlist_exists(snapprops, "is_clone_origin");
	} else {
	exclude = B_TRUE;
	}
	}

	/*
	* If a filter function exists, call it to determine whether
	* this snapshot will be sent.
	*/
	if (exclude \|\| (sdd->filter_cb != NULL &&
	sdd->filter_cb(zhp, sdd->filter_cb_arg) == B_FALSE)) {
	/*
	* This snapshot is filtered out. Don't send it, and don't
	* set prevsnap_obj, so it will be as if this snapshot didn't
	* exist, and the next accepted snapshot will be sent as
	* an incremental from the last accepted one, or as the
	* first (and full) snapshot in the case of a replication,
	* non-incremental send.
	*/
	zfs_close(zhp);
	return (0);
	}

	gather_holds(zhp, sdd);
	fromorigin = sdd->prevsnap[0] == '\0' &&
	(sdd->fromorigin \|\| sdd->replicate);

	if (sdd->verbosity != 0) {
	uint64_t size = 0;
	char fromds[ZFS_MAX_DATASET_NAME_LEN];

	if (sdd->prevsnap[0] != '\0') {
	(void) strlcpy(fromds, zhp->zfs_name, sizeof (fromds));
	*(strchr(fromds, '@') + 1) = '\0';
	(void) strlcat(fromds, sdd->prevsnap, sizeof (fromds));
	}
	if (zfs_send_space(zhp, zhp->zfs_name,
	sdd->prevsnap[0] ? fromds : NULL, flags, &size) != 0) {
	size = 0; /* cannot estimate send space */
	} else {
	send_print_verbose(fout, zhp->zfs_name,
	sdd->prevsnap[0] ? sdd->prevsnap : NULL,
	size, sdd->parsable);
	}
	sdd->size += size;
	}

	if (!sdd->dryrun) {
	/*
	* If progress reporting is requested, spawn a new thread to
	* poll ZFS_IOC_SEND_PROGRESS at a regular interval.
	*/
	if (sdd->progress) {
	pa.pa_zhp = zhp;
	pa.pa_fd = sdd->outfd;
	pa.pa_parsable = sdd->parsable;
	pa.pa_estimate = B_FALSE;
	pa.pa_verbosity = sdd->verbosity;

	if ((err = pthread_create(&tid, NULL,
	send_progress_thread, &pa)) != 0) {
	zfs_close(zhp);
	return (err);
	}
	}

	err = dump_ioctl(zhp, sdd->prevsnap, sdd->prevsnap_obj,
	fromorigin, sdd->outfd, flags, sdd->debugnv);

	if (sdd->progress) {
	void *status = NULL;
	(void) pthread_cancel(tid);
	(void) pthread_join(tid, &status);
	int error = (int)(uintptr_t)status;
	if (error != 0 && status != PTHREAD_CANCELED) {
	char errbuf[1024];
	(void) snprintf(errbuf, sizeof (errbuf),
	dgettext(TEXT_DOMAIN,
	"progress thread exited nonzero"));
	return (zfs_standard_error(zhp->zfs_hdl, error,
	errbuf));
	}
	}
	}

	(void) strcpy(sdd->prevsnap, thissnap);
	sdd->prevsnap_obj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID);
	zfs_close(zhp);
	return (err);
	}

	static int
	dump_filesystem(zfs_handle_t zhp, void arg)
	{
	int rv = 0;
	send_dump_data_t *sdd = arg;
	boolean_t missingfrom = B_FALSE;
	zfs_cmd_t zc = {"\0"};
	uint64_t min_txg = 0, max_txg = 0;

	(void) snprintf(zc.zc_name, sizeof (zc.zc_name), "%s@%s",
	zhp->zfs_name, sdd->tosnap);
	if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_STATS, &zc) != 0) {
	(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
	"WARNING: could not send %s@%s: does not exist\n"),
	zhp->zfs_name, sdd->tosnap);
	sdd->err = B_TRUE;
	return (0);
	}

	if (sdd->replicate && sdd->fromsnap) {
	/*
	* If this fs does not have fromsnap, and we're doing
	* recursive, we need to send a full stream from the
	* beginning (or an incremental from the origin if this
	* is a clone). If we're doing non-recursive, then let
	* them get the error.
	*/
	(void) snprintf(zc.zc_name, sizeof (zc.zc_name), "%s@%s",
	zhp->zfs_name, sdd->fromsnap);
	if (zfs_ioctl(zhp->zfs_hdl,
	ZFS_IOC_OBJSET_STATS, &zc) != 0) {
	missingfrom = B_TRUE;
	}
	}

	sdd->seenfrom = sdd->seento = sdd->prevsnap[0] = 0;
	sdd->prevsnap_obj = 0;
	if (sdd->fromsnap == NULL \|\| missingfrom)
	sdd->seenfrom = B_TRUE;



	/*
	* Iterate through all snapshots and process the ones we will be
	* sending. If we only have a "from" and "to" snapshot to deal
	* with, we can avoid iterating through all the other snapshots.
	*/
	if (sdd->doall \|\| sdd->replicate \|\| sdd->tosnap == NULL) {
	if (!sdd->replicate && sdd->fromsnap != NULL)
	min_txg = get_snap_txg(zhp->zfs_hdl, zhp->zfs_name,
	sdd->fromsnap);
	if (!sdd->replicate && sdd->tosnap != NULL)
	max_txg = get_snap_txg(zhp->zfs_hdl, zhp->zfs_name,
	sdd->tosnap);
	rv = zfs_iter_snapshots_sorted(zhp, dump_snapshot, arg,
	min_txg, max_txg);
	} else {
	char snapname[MAXPATHLEN] = { 0 };
	zfs_handle_t *snap;

	if (!sdd->seenfrom) {
	(void) snprintf(snapname, sizeof (snapname),
	"%s@%s", zhp->zfs_name, sdd->fromsnap);
	snap = zfs_open(zhp->zfs_hdl, snapname,
	ZFS_TYPE_SNAPSHOT);
	if (snap != NULL)
	rv = dump_snapshot(snap, sdd);
	else
	rv = -1;
	}

	if (rv == 0) {
	(void) snprintf(snapname, sizeof (snapname),
	"%s@%s", zhp->zfs_name, sdd->tosnap);
	snap = zfs_open(zhp->zfs_hdl, snapname,
	ZFS_TYPE_SNAPSHOT);
	if (snap != NULL)
	rv = dump_snapshot(snap, sdd);
	else
	rv = -1;
	}
	}

	if (!sdd->seenfrom) {
	(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
	"WARNING: could not send %s@%s:\n"
	"incremental source (%s@%s) does not exist\n"),
	zhp->zfs_name, sdd->tosnap,
	zhp->zfs_name, sdd->fromsnap);
	sdd->err = B_TRUE;
	} else if (!sdd->seento) {
	if (sdd->fromsnap) {
	(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
	"WARNING: could not send %s@%s:\n"
	"incremental source (%s@%s) "
	"is not earlier than it\n"),
	zhp->zfs_name, sdd->tosnap,
	zhp->zfs_name, sdd->fromsnap);
	} else {
	(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
	"WARNING: "
	"could not send %s@%s: does not exist\n"),
	zhp->zfs_name, sdd->tosnap);
	}
	sdd->err = B_TRUE;
	}

	return (rv);
	}

	static int
	dump_filesystems(zfs_handle_t rzhp, void arg)
	{
	send_dump_data_t *sdd = arg;
	nvpair_t *fspair;
	boolean_t needagain, progress;

	if (!sdd->replicate)
	return (dump_filesystem(rzhp, sdd));

	/* Mark the clone origin snapshots. */
	for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair;
	fspair = nvlist_next_nvpair(sdd->fss, fspair)) {
	nvlist_t *nvfs;
	uint64_t origin_guid = 0;

	nvfs = fnvpair_value_nvlist(fspair);
	(void) nvlist_lookup_uint64(nvfs, "origin", &origin_guid);
	if (origin_guid != 0) {
	char *snapname;
	nvlist_t *origin_nv = fsavl_find(sdd->fsavl,
	origin_guid, &snapname);
	if (origin_nv != NULL) {
	nvlist_t *snapprops;
	snapprops = fnvlist_lookup_nvlist(origin_nv,
	"snapprops");
	snapprops = fnvlist_lookup_nvlist(snapprops,
	snapname);
	fnvlist_add_boolean(snapprops,
	"is_clone_origin");
	}
	}
	}
	again:
	needagain = progress = B_FALSE;
	for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair;
	fspair = nvlist_next_nvpair(sdd->fss, fspair)) {
	nvlist_t fslist, parent_nv;
	char *fsname;
	zfs_handle_t *zhp;
	int err;
	uint64_t origin_guid = 0;
	uint64_t parent_guid = 0;

	fslist = fnvpair_value_nvlist(fspair);
	if (nvlist_lookup_boolean(fslist, "sent") == 0)
	continue;

	fsname = fnvlist_lookup_string(fslist, "name");
	(void) nvlist_lookup_uint64(fslist, "origin", &origin_guid);
	(void) nvlist_lookup_uint64(fslist, "parentfromsnap",
	&parent_guid);

	if (parent_guid != 0) {
	parent_nv = fsavl_find(sdd->fsavl, parent_guid, NULL);
	if (!nvlist_exists(parent_nv, "sent")) {
	/* parent has not been sent; skip this one */
	needagain = B_TRUE;
	continue;
	}
	}

	if (origin_guid != 0) {
	nvlist_t *origin_nv = fsavl_find(sdd->fsavl,
	origin_guid, NULL);
	if (origin_nv != NULL &&
	!nvlist_exists(origin_nv, "sent")) {
	/*
	* origin has not been sent yet;
	* skip this clone.
	*/
	needagain = B_TRUE;
	continue;
	}
	}

	zhp = zfs_open(rzhp->zfs_hdl, fsname, ZFS_TYPE_DATASET);
	if (zhp == NULL)
	return (-1);
	err = dump_filesystem(zhp, sdd);
	fnvlist_add_boolean(fslist, "sent");
	progress = B_TRUE;
	zfs_close(zhp);
	if (err)
	return (err);
	}
	if (needagain) {
	assert(progress);
	goto again;
	}

	/* clean out the sent flags in case we reuse this fss */
	for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair;
	fspair = nvlist_next_nvpair(sdd->fss, fspair)) {
	nvlist_t *fslist;

	fslist = fnvpair_value_nvlist(fspair);
	(void) nvlist_remove_all(fslist, "sent");
	}

	return (0);
	}

	nvlist_t *
	zfs_send_resume_token_to_nvlist(libzfs_handle_t hdl, const char token)
	{
	unsigned int version;
	int nread, i;
	unsigned long long checksum, packed_len;

	/*
	* Decode token header, which is:
	* <token version>-<checksum of payload>-<uncompressed payload length>
	* Note that the only supported token version is 1.
	*/
	nread = sscanf(token, "%u-%llx-%llx-",
	&version, &checksum, &packed_len);
	if (nread != 3) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"resume token is corrupt (invalid format)"));
	return (NULL);
	}

	if (version != ZFS_SEND_RESUME_TOKEN_VERSION) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"resume token is corrupt (invalid version %u)"),
	version);
	return (NULL);
	}

	/* convert hexadecimal representation to binary */
	token = strrchr(token, '-') + 1;
	int len = strlen(token) / 2;
	unsigned char *compressed = zfs_alloc(hdl, len);
	for (i = 0; i < len; i++) {
	nread = sscanf(token + i * 2, "%2hhx", compressed + i);
	if (nread != 1) {
	free(compressed);
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"resume token is corrupt "
	"(payload is not hex-encoded)"));
	return (NULL);
	}
	}

	/* verify checksum */
	zio_cksum_t cksum;
	fletcher_4_native_varsize(compressed, len, &cksum);
	if (cksum.zc_word[0] != checksum) {
	free(compressed);
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"resume token is corrupt (incorrect checksum)"));
	return (NULL);
	}

	/* uncompress */
	void *packed = zfs_alloc(hdl, packed_len);
	uLongf packed_len_long = packed_len;
	if (uncompress(packed, &packed_len_long, compressed, len) != Z_OK \|\|
	packed_len_long != packed_len) {
	free(packed);
	free(compressed);
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"resume token is corrupt (decompression failed)"));
	return (NULL);
	}

	/* unpack nvlist */
	nvlist_t *nv;
	int error = nvlist_unpack(packed, packed_len, &nv, KM_SLEEP);
	free(packed);
	free(compressed);
	if (error != 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"resume token is corrupt (nvlist_unpack failed)"));
	return (NULL);
	}
	return (nv);
	}
	static enum lzc_send_flags
	lzc_flags_from_sendflags(const sendflags_t *flags)
	{
	enum lzc_send_flags lzc_flags = 0;
	if (flags->largeblock)
	lzc_flags \|= LZC_SEND_FLAG_LARGE_BLOCK;
	if (flags->embed_data)
	lzc_flags \|= LZC_SEND_FLAG_EMBED_DATA;
	if (flags->compress)
	lzc_flags \|= LZC_SEND_FLAG_COMPRESS;
	if (flags->raw)
	lzc_flags \|= LZC_SEND_FLAG_RAW;
	if (flags->saved)
	lzc_flags \|= LZC_SEND_FLAG_SAVED;
	return (lzc_flags);
	}

	static int
	estimate_size(zfs_handle_t zhp, const char from, int fd, sendflags_t *flags,
	uint64_t resumeobj, uint64_t resumeoff, uint64_t bytes,
	const char redactbook, char errbuf)
	{
	uint64_t size;
	FILE *fout = flags->dryrun ? stdout : stderr;
	progress_arg_t pa = { 0 };
	int err = 0;
	pthread_t ptid;

	if (flags->progress) {
	pa.pa_zhp = zhp;
	pa.pa_fd = fd;
	pa.pa_parsable = flags->parsable;
	pa.pa_estimate = B_TRUE;
	pa.pa_verbosity = flags->verbosity;

	err = pthread_create(&ptid, NULL,
	send_progress_thread, &pa);
	if (err != 0) {
	zfs_error_aux(zhp->zfs_hdl, "%s", strerror(errno));
	return (zfs_error(zhp->zfs_hdl,
	EZFS_THREADCREATEFAILED, errbuf));
	}
	}

	err = lzc_send_space_resume_redacted(zhp->zfs_name, from,
	lzc_flags_from_sendflags(flags), resumeobj, resumeoff, bytes,
	redactbook, fd, &size);

	if (flags->progress) {
	void *status = NULL;
	(void) pthread_cancel(ptid);
	(void) pthread_join(ptid, &status);
	int error = (int)(uintptr_t)status;
	if (error != 0 && status != PTHREAD_CANCELED) {
	char errbuf[1024];
	(void) snprintf(errbuf, sizeof (errbuf),
	dgettext(TEXT_DOMAIN, "progress thread exited "
	"nonzero"));
	return (zfs_standard_error(zhp->zfs_hdl, error,
	errbuf));
	}
	}

	if (err != 0) {
	zfs_error_aux(zhp->zfs_hdl, "%s", strerror(err));
	return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP,
	errbuf));
	}
	send_print_verbose(fout, zhp->zfs_name, from, size,
	flags->parsable);

	if (flags->parsable) {
	(void) fprintf(fout, "size\t%llu\n", (longlong_t)size);
	} else {
	char buf[16];
	zfs_nicenum(size, buf, sizeof (buf));
	(void) fprintf(fout, dgettext(TEXT_DOMAIN,
	"total estimated size is %s\n"), buf);
	}
	return (0);
	}

	static boolean_t
	redact_snaps_contains(const uint64_t *snaps, uint64_t num_snaps, uint64_t guid)
	{
	for (int i = 0; i < num_snaps; i++) {
	if (snaps[i] == guid)
	return (B_TRUE);
	}
	return (B_FALSE);
	}

	static boolean_t
	redact_snaps_equal(const uint64_t *snaps1, uint64_t num_snaps1,
	const uint64_t *snaps2, uint64_t num_snaps2)
	{
	if (num_snaps1 != num_snaps2)
	return (B_FALSE);
	for (int i = 0; i < num_snaps1; i++) {
	if (!redact_snaps_contains(snaps2, num_snaps2, snaps1[i]))
	return (B_FALSE);
	}
	return (B_TRUE);
	}

	/*
	* Check that the list of redaction snapshots in the bookmark matches the send
	* we're resuming, and return whether or not it's complete.
	*
	* Note that the caller needs to free the contents of *bookname with free() if
	* this function returns successfully.
	*/
	static int
	find_redact_book(libzfs_handle_t hdl, const char path,
	const uint64_t *redact_snap_guids, int num_redact_snaps,
	char **bookname)
	{
	char errbuf[1024];
	int error = 0;
	nvlist_t *props = fnvlist_alloc();
	nvlist_t *bmarks;

	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
	"cannot resume send"));

	fnvlist_add_boolean(props, "redact_complete");
	fnvlist_add_boolean(props, zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS));
	error = lzc_get_bookmarks(path, props, &bmarks);
	fnvlist_free(props);
	if (error != 0) {
	if (error == ESRCH) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"nonexistent redaction bookmark provided"));
	} else if (error == ENOENT) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"dataset to be sent no longer exists"));
	} else {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"unknown error: %s"), strerror(error));
	}
	return (zfs_error(hdl, EZFS_BADPROP, errbuf));
	}
	nvpair_t *pair;
	for (pair = nvlist_next_nvpair(bmarks, NULL); pair;
	pair = nvlist_next_nvpair(bmarks, pair)) {

	nvlist_t *bmark = fnvpair_value_nvlist(pair);
	nvlist_t *vallist = fnvlist_lookup_nvlist(bmark,
	zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS));
	uint_t len = 0;
	uint64_t *bmarksnaps = fnvlist_lookup_uint64_array(vallist,
	ZPROP_VALUE, &len);
	if (redact_snaps_equal(redact_snap_guids,
	num_redact_snaps, bmarksnaps, len)) {
	break;
	}
	}
	if (pair == NULL) {
	fnvlist_free(bmarks);
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"no appropriate redaction bookmark exists"));
	return (zfs_error(hdl, EZFS_BADPROP, errbuf));
	}
	char *name = nvpair_name(pair);
	nvlist_t *bmark = fnvpair_value_nvlist(pair);
	nvlist_t *vallist = fnvlist_lookup_nvlist(bmark, "redact_complete");
	boolean_t complete = fnvlist_lookup_boolean_value(vallist,
	ZPROP_VALUE);
	if (!complete) {
	fnvlist_free(bmarks);
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"incomplete redaction bookmark provided"));
	return (zfs_error(hdl, EZFS_BADPROP, errbuf));
	}
	*bookname = strndup(name, ZFS_MAX_DATASET_NAME_LEN);
	ASSERT3P(*bookname, !=, NULL);
	fnvlist_free(bmarks);
	return (0);
	}

	static int
	zfs_send_resume_impl(libzfs_handle_t hdl, sendflags_t flags, int outfd,
	nvlist_t *resume_nvl)
	{
	char errbuf[1024];
	char *toname;
	char *fromname = NULL;
	uint64_t resumeobj, resumeoff, toguid, fromguid, bytes;
	zfs_handle_t *zhp;
	int error = 0;
	char name[ZFS_MAX_DATASET_NAME_LEN];
	enum lzc_send_flags lzc_flags = 0;
	FILE *fout = (flags->verbosity > 0 && flags->dryrun) ? stdout : stderr;
	uint64_t *redact_snap_guids = NULL;
	int num_redact_snaps = 0;
	char *redact_book = NULL;

	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
	"cannot resume send"));

	if (flags->verbosity != 0) {
	(void) fprintf(fout, dgettext(TEXT_DOMAIN,
	"resume token contents:\n"));
	nvlist_print(fout, resume_nvl);
	}

	if (nvlist_lookup_string(resume_nvl, "toname", &toname) != 0 \|\|
	nvlist_lookup_uint64(resume_nvl, "object", &resumeobj) != 0 \|\|
	nvlist_lookup_uint64(resume_nvl, "offset", &resumeoff) != 0 \|\|
	nvlist_lookup_uint64(resume_nvl, "bytes", &bytes) != 0 \|\|
	nvlist_lookup_uint64(resume_nvl, "toguid", &toguid) != 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"resume token is corrupt"));
	return (zfs_error(hdl, EZFS_FAULT, errbuf));
	}
	fromguid = 0;
	(void) nvlist_lookup_uint64(resume_nvl, "fromguid", &fromguid);

	if (flags->largeblock \|\| nvlist_exists(resume_nvl, "largeblockok"))
	lzc_flags \|= LZC_SEND_FLAG_LARGE_BLOCK;
	if (flags->embed_data \|\| nvlist_exists(resume_nvl, "embedok"))
	lzc_flags \|= LZC_SEND_FLAG_EMBED_DATA;
	if (flags->compress \|\| nvlist_exists(resume_nvl, "compressok"))
	lzc_flags \|= LZC_SEND_FLAG_COMPRESS;
	if (flags->raw \|\| nvlist_exists(resume_nvl, "rawok"))
	lzc_flags \|= LZC_SEND_FLAG_RAW;
	if (flags->saved \|\| nvlist_exists(resume_nvl, "savedok"))
	lzc_flags \|= LZC_SEND_FLAG_SAVED;

	if (flags->saved) {
	(void) strcpy(name, toname);
	} else {
	error = guid_to_name(hdl, toname, toguid, B_FALSE, name);
	if (error != 0) {
	if (zfs_dataset_exists(hdl, toname, ZFS_TYPE_DATASET)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"'%s' is no longer the same snapshot "
	"used in the initial send"), toname);
	} else {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"'%s' used in the initial send no "
	"longer exists"), toname);
	}
	return (zfs_error(hdl, EZFS_BADPATH, errbuf));
	}
	}

	zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET);
	if (zhp == NULL) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"unable to access '%s'"), name);
	return (zfs_error(hdl, EZFS_BADPATH, errbuf));
	}

	if (nvlist_lookup_uint64_array(resume_nvl, "book_redact_snaps",
	&redact_snap_guids, (uint_t *)&num_redact_snaps) != 0) {
	num_redact_snaps = -1;
	}

	if (fromguid != 0) {
	if (guid_to_name_redact_snaps(hdl, toname, fromguid, B_TRUE,
	redact_snap_guids, num_redact_snaps, name) != 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"incremental source %#llx no longer exists"),
	(longlong_t)fromguid);
	return (zfs_error(hdl, EZFS_BADPATH, errbuf));
	}
	fromname = name;
	}

	redact_snap_guids = NULL;

	if (nvlist_lookup_uint64_array(resume_nvl,
	zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS), &redact_snap_guids,
	(uint_t *)&num_redact_snaps) == 0) {
	char path[ZFS_MAX_DATASET_NAME_LEN];

	(void) strlcpy(path, toname, sizeof (path));
	char *at = strchr(path, '@');
	ASSERT3P(at, !=, NULL);

	*at = '\0';

	if ((error = find_redact_book(hdl, path, redact_snap_guids,
	num_redact_snaps, &redact_book)) != 0) {
	return (error);
	}
	}

	if (flags->verbosity != 0) {
	/*
	* Some of these may have come from the resume token, set them
	* here for size estimate purposes.
	*/
	sendflags_t tmpflags = *flags;
	if (lzc_flags & LZC_SEND_FLAG_LARGE_BLOCK)
	tmpflags.largeblock = B_TRUE;
	if (lzc_flags & LZC_SEND_FLAG_COMPRESS)
	tmpflags.compress = B_TRUE;
	if (lzc_flags & LZC_SEND_FLAG_EMBED_DATA)
	tmpflags.embed_data = B_TRUE;
	error = estimate_size(zhp, fromname, outfd, &tmpflags,
	resumeobj, resumeoff, bytes, redact_book, errbuf);
	}

	if (!flags->dryrun) {
	progress_arg_t pa = { 0 };
	pthread_t tid;
	/*
	* If progress reporting is requested, spawn a new thread to
	* poll ZFS_IOC_SEND_PROGRESS at a regular interval.
	*/
	if (flags->progress) {
	pa.pa_zhp = zhp;
	pa.pa_fd = outfd;
	pa.pa_parsable = flags->parsable;
	pa.pa_estimate = B_FALSE;
	pa.pa_verbosity = flags->verbosity;

	error = pthread_create(&tid, NULL,
	send_progress_thread, &pa);
	if (error != 0) {
	if (redact_book != NULL)
	free(redact_book);
	zfs_close(zhp);
	return (error);
	}
	}

	error = lzc_send_resume_redacted(zhp->zfs_name, fromname, outfd,
	lzc_flags, resumeobj, resumeoff, redact_book);
	if (redact_book != NULL)
	free(redact_book);

	if (flags->progress) {
	void *status = NULL;
	(void) pthread_cancel(tid);
	(void) pthread_join(tid, &status);
	int error = (int)(uintptr_t)status;
	if (error != 0 && status != PTHREAD_CANCELED) {
	char errbuf[1024];
	(void) snprintf(errbuf, sizeof (errbuf),
	dgettext(TEXT_DOMAIN,
	"progress thread exited nonzero"));
	return (zfs_standard_error(hdl, error, errbuf));
	}
	}

	char errbuf[1024];
	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
	"warning: cannot send '%s'"), zhp->zfs_name);

	zfs_close(zhp);

	switch (error) {
	case 0:
	return (0);
	case EACCES:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"source key must be loaded"));
	return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf));
	case ESRCH:
	if (lzc_exists(zhp->zfs_name)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"incremental source could not be found"));
	}
	return (zfs_error(hdl, EZFS_NOENT, errbuf));

	case EXDEV:
	case ENOENT:
	case EDQUOT:
	case EFBIG:
	case EIO:
	case ENOLINK:
	case ENOSPC:
	case ENOSTR:
	case ENXIO:
	case EPIPE:
	case ERANGE:
	case EFAULT:
	case EROFS:
	zfs_error_aux(hdl, "%s", strerror(errno));
	return (zfs_error(hdl, EZFS_BADBACKUP, errbuf));

	default:
	return (zfs_standard_error(hdl, errno, errbuf));
	}
	} else {
	if (redact_book != NULL)
	free(redact_book);
	}

	zfs_close(zhp);

	return (error);
	}

	int
	zfs_send_resume(libzfs_handle_t hdl, sendflags_t flags, int outfd,
	const char *resume_token)
	{
	int ret;
	char errbuf[1024];
	nvlist_t *resume_nvl;

	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
	"cannot resume send"));

	resume_nvl = zfs_send_resume_token_to_nvlist(hdl, resume_token);
	if (resume_nvl == NULL) {
	/*
	* zfs_error_aux has already been set by
	* zfs_send_resume_token_to_nvlist()
	*/
	return (zfs_error(hdl, EZFS_FAULT, errbuf));
	}

	ret = zfs_send_resume_impl(hdl, flags, outfd, resume_nvl);
	fnvlist_free(resume_nvl);

	return (ret);
	}

	int
	zfs_send_saved(zfs_handle_t zhp, sendflags_t flags, int outfd,
	const char *resume_token)
	{
	int ret;
	libzfs_handle_t *hdl = zhp->zfs_hdl;
	nvlist_t saved_nvl = NULL, resume_nvl = NULL;
	uint64_t saved_guid = 0, resume_guid = 0;
	uint64_t obj = 0, off = 0, bytes = 0;
	char token_buf[ZFS_MAXPROPLEN];
	char errbuf[1024];

	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
	"saved send failed"));

	ret = zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
	token_buf, sizeof (token_buf), NULL, NULL, 0, B_TRUE);
	if (ret != 0)
	goto out;

	saved_nvl = zfs_send_resume_token_to_nvlist(hdl, token_buf);
	if (saved_nvl == NULL) {
	/*
	* zfs_error_aux has already been set by
	* zfs_send_resume_token_to_nvlist()
	*/
	ret = zfs_error(hdl, EZFS_FAULT, errbuf);
	goto out;
	}

	/*
	* If a resume token is provided we use the object and offset
	* from that instead of the default, which starts from the
	* beginning.
	*/
	if (resume_token != NULL) {
	resume_nvl = zfs_send_resume_token_to_nvlist(hdl,
	resume_token);
	if (resume_nvl == NULL) {
	ret = zfs_error(hdl, EZFS_FAULT, errbuf);
	goto out;
	}

	if (nvlist_lookup_uint64(resume_nvl, "object", &obj) != 0 \|\|
	nvlist_lookup_uint64(resume_nvl, "offset", &off) != 0 \|\|
	nvlist_lookup_uint64(resume_nvl, "bytes", &bytes) != 0 \|\|
	nvlist_lookup_uint64(resume_nvl, "toguid",
	&resume_guid) != 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"provided resume token is corrupt"));
	ret = zfs_error(hdl, EZFS_FAULT, errbuf);
	goto out;
	}

	if (nvlist_lookup_uint64(saved_nvl, "toguid",
	&saved_guid)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"dataset's resume token is corrupt"));
	ret = zfs_error(hdl, EZFS_FAULT, errbuf);
	goto out;
	}

	if (resume_guid != saved_guid) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"provided resume token does not match dataset"));
	ret = zfs_error(hdl, EZFS_BADBACKUP, errbuf);
	goto out;
	}
	}

	(void) nvlist_remove_all(saved_nvl, "object");
	fnvlist_add_uint64(saved_nvl, "object", obj);

	(void) nvlist_remove_all(saved_nvl, "offset");
	fnvlist_add_uint64(saved_nvl, "offset", off);

	(void) nvlist_remove_all(saved_nvl, "bytes");
	fnvlist_add_uint64(saved_nvl, "bytes", bytes);

	(void) nvlist_remove_all(saved_nvl, "toname");
	fnvlist_add_string(saved_nvl, "toname", zhp->zfs_name);

	ret = zfs_send_resume_impl(hdl, flags, outfd, saved_nvl);

	out:
	fnvlist_free(saved_nvl);
	fnvlist_free(resume_nvl);
	return (ret);
	}

	/*
	* This function informs the target system that the recursive send is complete.
	* The record is also expected in the case of a send -p.
	*/
	static int
	send_conclusion_record(int fd, zio_cksum_t *zc)
	{
	dmu_replay_record_t drr = { 0 };
	drr.drr_type = DRR_END;
	if (zc != NULL)
	drr.drr_u.drr_end.drr_checksum = *zc;
	if (write(fd, &drr, sizeof (drr)) == -1) {
	return (errno);
	}
	return (0);
	}

	/*
	* This function is responsible for sending the records that contain the
	* necessary information for the target system's libzfs to be able to set the
	* properties of the filesystem being received, or to be able to prepare for
	* a recursive receive.
	*
	* The "zhp" argument is the handle of the snapshot we are sending
	* (the "tosnap"). The "from" argument is the short snapshot name (the part
	* after the @) of the incremental source.
	*/
	static int
	send_prelim_records(zfs_handle_t zhp, const char from, int fd,
	boolean_t gather_props, boolean_t recursive, boolean_t verbose,
	boolean_t dryrun, boolean_t raw, boolean_t replicate, boolean_t skipmissing,
	boolean_t backup, boolean_t holds, boolean_t props, boolean_t doall,
	nvlist_t fssp, avl_tree_t fsavlp)
	{
	int err = 0;
	char *packbuf = NULL;
	size_t buflen = 0;
	zio_cksum_t zc = { {0} };
	int featureflags = 0;
	/* name of filesystem/volume that contains snapshot we are sending */
	char tofs[ZFS_MAX_DATASET_NAME_LEN];
	/* short name of snap we are sending */
	char *tosnap = "";

	char errbuf[1024];
	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
	"warning: cannot send '%s'"), zhp->zfs_name);
	if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && zfs_prop_get_int(zhp,
	ZFS_PROP_VERSION) >= ZPL_VERSION_SA) {
	featureflags \|= DMU_BACKUP_FEATURE_SA_SPILL;
	}

	if (holds)
	featureflags \|= DMU_BACKUP_FEATURE_HOLDS;

	(void) strlcpy(tofs, zhp->zfs_name, ZFS_MAX_DATASET_NAME_LEN);
	char *at = strchr(tofs, '@');
	if (at != NULL) {
	*at = '\0';
	tosnap = at + 1;
	}

	if (gather_props) {
	nvlist_t *hdrnv = fnvlist_alloc();
	nvlist_t *fss = NULL;

	if (from != NULL)
	fnvlist_add_string(hdrnv, "fromsnap", from);
	fnvlist_add_string(hdrnv, "tosnap", tosnap);
	if (!recursive)
	fnvlist_add_boolean(hdrnv, "not_recursive");

	if (raw) {
	fnvlist_add_boolean(hdrnv, "raw");
	}

	if ((err = gather_nvlist(zhp->zfs_hdl, tofs,
	from, tosnap, recursive, raw, doall, replicate, skipmissing,
	verbose, backup, holds, props, &fss, fsavlp)) != 0) {
	return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP,
	errbuf));
	}
	/*
	* Do not allow the size of the properties list to exceed
	* the limit
	*/
	if ((fnvlist_size(fss) + fnvlist_size(hdrnv)) >
	zhp->zfs_hdl->libzfs_max_nvlist) {
	(void) snprintf(errbuf, sizeof (errbuf),
	dgettext(TEXT_DOMAIN, "warning: cannot send '%s': "
	"the size of the list of snapshots and properties "
	"is too large to be received successfully.\n"
	"Select a smaller number of snapshots to send.\n"),
	zhp->zfs_name);
	return (zfs_error(zhp->zfs_hdl, EZFS_NOSPC,
	errbuf));
	}
	fnvlist_add_nvlist(hdrnv, "fss", fss);
	VERIFY0(nvlist_pack(hdrnv, &packbuf, &buflen, NV_ENCODE_XDR,
	0));
	if (fssp != NULL) {
	*fssp = fss;
	} else {
	fnvlist_free(fss);
	}
	fnvlist_free(hdrnv);
	}

	if (!dryrun) {
	dmu_replay_record_t drr = { 0 };
	/* write first begin record */
	drr.drr_type = DRR_BEGIN;
	drr.drr_u.drr_begin.drr_magic = DMU_BACKUP_MAGIC;
	DMU_SET_STREAM_HDRTYPE(drr.drr_u.drr_begin.
	drr_versioninfo, DMU_COMPOUNDSTREAM);
	DMU_SET_FEATUREFLAGS(drr.drr_u.drr_begin.
	drr_versioninfo, featureflags);
	if (snprintf(drr.drr_u.drr_begin.drr_toname,
	sizeof (drr.drr_u.drr_begin.drr_toname), "%s@%s", tofs,
	tosnap) >= sizeof (drr.drr_u.drr_begin.drr_toname)) {
	return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP,
	errbuf));
	}
	drr.drr_payloadlen = buflen;

	err = dump_record(&drr, packbuf, buflen, &zc, fd);
	free(packbuf);
	if (err != 0) {
	zfs_error_aux(zhp->zfs_hdl, "%s", strerror(err));
	return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP,
	errbuf));
	}
	err = send_conclusion_record(fd, &zc);
	if (err != 0) {
	zfs_error_aux(zhp->zfs_hdl, "%s", strerror(err));
	return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP,
	errbuf));
	}
	}
	return (0);
	}

	/*
	* Generate a send stream. The "zhp" argument is the filesystem/volume
	* that contains the snapshot to send. The "fromsnap" argument is the
	* short name (the part after the '@') of the snapshot that is the
	* incremental source to send from (if non-NULL). The "tosnap" argument
	* is the short name of the snapshot to send.
	*
	* The content of the send stream is the snapshot identified by
	* 'tosnap'. Incremental streams are requested in two ways:
	* - from the snapshot identified by "fromsnap" (if non-null) or
	* - from the origin of the dataset identified by zhp, which must
	* be a clone. In this case, "fromsnap" is null and "fromorigin"
	* is TRUE.
	*
	* The send stream is recursive (i.e. dumps a hierarchy of snapshots) and
	* uses a special header (with a hdrtype field of DMU_COMPOUNDSTREAM)
	* if "replicate" is set. If "doall" is set, dump all the intermediate
	* snapshots. The DMU_COMPOUNDSTREAM header is used in the "doall"
	* case too. If "props" is set, send properties.
	*/
	int
	zfs_send(zfs_handle_t zhp, const char fromsnap, const char *tosnap,
	sendflags_t *flags, int outfd, snapfilter_cb_t filter_func,
	void cb_arg, nvlist_t *debugnvp)
	{
	char errbuf[1024];
	send_dump_data_t sdd = { 0 };
	int err = 0;
	nvlist_t *fss = NULL;
	avl_tree_t *fsavl = NULL;
	static uint64_t holdseq;
	int spa_version;
	FILE *fout;

	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
	"cannot send '%s'"), zhp->zfs_name);

	if (fromsnap && fromsnap[0] == '\0') {
	zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
	"zero-length incremental source"));
	return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf));
	}

	if (flags->replicate \|\| flags->doall \|\| flags->props \|\|
	flags->holds \|\| flags->backup) {
	char full_tosnap_name[ZFS_MAX_DATASET_NAME_LEN];
	if (snprintf(full_tosnap_name, sizeof (full_tosnap_name),
	"%s@%s", zhp->zfs_name, tosnap) >=
	sizeof (full_tosnap_name)) {
	err = EINVAL;
	goto stderr_out;
	}
	zfs_handle_t *tosnap = zfs_open(zhp->zfs_hdl,
	full_tosnap_name, ZFS_TYPE_SNAPSHOT);
	if (tosnap == NULL) {
	err = -1;
	goto err_out;
	}
	err = send_prelim_records(tosnap, fromsnap, outfd,
	flags->replicate \|\| flags->props \|\| flags->holds,
	flags->replicate, flags->verbosity > 0, flags->dryrun,
	flags->raw, flags->replicate, flags->skipmissing,
	flags->backup, flags->holds, flags->props, flags->doall,
	&fss, &fsavl);
	zfs_close(tosnap);
	if (err != 0)
	goto err_out;
	}

	/* dump each stream */
	sdd.fromsnap = fromsnap;
	sdd.tosnap = tosnap;
	sdd.outfd = outfd;
	sdd.replicate = flags->replicate;
	sdd.doall = flags->doall;
	sdd.fromorigin = flags->fromorigin;
	sdd.fss = fss;
	sdd.fsavl = fsavl;
	sdd.verbosity = flags->verbosity;
	sdd.parsable = flags->parsable;
	sdd.progress = flags->progress;
	sdd.dryrun = flags->dryrun;
	sdd.large_block = flags->largeblock;
	sdd.embed_data = flags->embed_data;
	sdd.compress = flags->compress;
	sdd.raw = flags->raw;
	sdd.holds = flags->holds;
	sdd.filter_cb = filter_func;
	sdd.filter_cb_arg = cb_arg;
	if (debugnvp)
	sdd.debugnv = *debugnvp;
	if (sdd.verbosity != 0 && sdd.dryrun)
	sdd.std_out = B_TRUE;
	fout = sdd.std_out ? stdout : stderr;

	/*
	* Some flags require that we place user holds on the datasets that are
	* being sent so they don't get destroyed during the send. We can skip
	* this step if the pool is imported read-only since the datasets cannot
	* be destroyed.
	*/
	if (!flags->dryrun && !zpool_get_prop_int(zfs_get_pool_handle(zhp),
	ZPOOL_PROP_READONLY, NULL) &&
	zfs_spa_version(zhp, &spa_version) == 0 &&
	spa_version >= SPA_VERSION_USERREFS &&
	(flags->doall \|\| flags->replicate)) {
	++holdseq;
	(void) snprintf(sdd.holdtag, sizeof (sdd.holdtag),
	".send-%d-%llu", getpid(), (u_longlong_t)holdseq);
	sdd.cleanup_fd = open(ZFS_DEV, O_RDWR \| O_CLOEXEC);
	if (sdd.cleanup_fd < 0) {
	err = errno;
	goto stderr_out;
	}
	sdd.snapholds = fnvlist_alloc();
	} else {
	sdd.cleanup_fd = -1;
	sdd.snapholds = NULL;
	}

	if (flags->verbosity != 0 \|\| sdd.snapholds != NULL) {
	/*
	* Do a verbose no-op dry run to get all the verbose output
	* or to gather snapshot hold's before generating any data,
	* then do a non-verbose real run to generate the streams.
	*/
	sdd.dryrun = B_TRUE;
	err = dump_filesystems(zhp, &sdd);

	if (err != 0)
	goto stderr_out;

	if (flags->verbosity != 0) {
	if (flags->parsable) {
	(void) fprintf(fout, "size\t%llu\n",
	(longlong_t)sdd.size);
	} else {
	char buf[16];
	zfs_nicebytes(sdd.size, buf, sizeof (buf));
	(void) fprintf(fout, dgettext(TEXT_DOMAIN,
	"total estimated size is %s\n"), buf);
	}
	}

	/* Ensure no snaps found is treated as an error. */
	if (!sdd.seento) {
	err = ENOENT;
	goto err_out;
	}

	/* Skip the second run if dryrun was requested. */
	if (flags->dryrun)
	goto err_out;

	if (sdd.snapholds != NULL) {
	err = zfs_hold_nvl(zhp, sdd.cleanup_fd, sdd.snapholds);
	if (err != 0)
	goto stderr_out;

	fnvlist_free(sdd.snapholds);
	sdd.snapholds = NULL;
	}

	sdd.dryrun = B_FALSE;
	sdd.verbosity = 0;
	}

	err = dump_filesystems(zhp, &sdd);
	fsavl_destroy(fsavl);
	fnvlist_free(fss);

	/* Ensure no snaps found is treated as an error. */
	if (err == 0 && !sdd.seento)
	err = ENOENT;

	if (sdd.cleanup_fd != -1) {
	VERIFY(0 == close(sdd.cleanup_fd));
	sdd.cleanup_fd = -1;
	}

	if (!flags->dryrun && (flags->replicate \|\| flags->doall \|\|
	flags->props \|\| flags->backup \|\| flags->holds)) {
	/*
	* write final end record. NB: want to do this even if
	* there was some error, because it might not be totally
	* failed.
	*/
	err = send_conclusion_record(outfd, NULL);
	if (err != 0)
	return (zfs_standard_error(zhp->zfs_hdl, err, errbuf));
	}

	return (err \|\| sdd.err);

	stderr_out:
	err = zfs_standard_error(zhp->zfs_hdl, err, errbuf);
	err_out:
	fsavl_destroy(fsavl);
	fnvlist_free(fss);
	fnvlist_free(sdd.snapholds);

	if (sdd.cleanup_fd != -1)
	VERIFY(0 == close(sdd.cleanup_fd));
	return (err);
	}

	static zfs_handle_t *
	name_to_dir_handle(libzfs_handle_t hdl, const char snapname)
	{
	char dirname[ZFS_MAX_DATASET_NAME_LEN];
	(void) strlcpy(dirname, snapname, ZFS_MAX_DATASET_NAME_LEN);
	char *c = strchr(dirname, '@');
	if (c != NULL)
	*c = '\0';
	return (zfs_open(hdl, dirname, ZFS_TYPE_DATASET));
	}

	/*
	* Returns B_TRUE if earlier is an earlier snapshot in later's timeline; either
	* an earlier snapshot in the same filesystem, or a snapshot before later's
	* origin, or it's origin's origin, etc.
	*/
	static boolean_t
	snapshot_is_before(zfs_handle_t earlier, zfs_handle_t later)
	{
	boolean_t ret;
	uint64_t later_txg =
	(later->zfs_type == ZFS_TYPE_FILESYSTEM \|\|
	later->zfs_type == ZFS_TYPE_VOLUME ?
	UINT64_MAX : zfs_prop_get_int(later, ZFS_PROP_CREATETXG));
	uint64_t earlier_txg = zfs_prop_get_int(earlier, ZFS_PROP_CREATETXG);

	if (earlier_txg >= later_txg)
	return (B_FALSE);

	zfs_handle_t *earlier_dir = name_to_dir_handle(earlier->zfs_hdl,
	earlier->zfs_name);
	zfs_handle_t *later_dir = name_to_dir_handle(later->zfs_hdl,
	later->zfs_name);

	if (strcmp(earlier_dir->zfs_name, later_dir->zfs_name) == 0) {
	zfs_close(earlier_dir);
	zfs_close(later_dir);
	return (B_TRUE);
	}

	char clonename[ZFS_MAX_DATASET_NAME_LEN];
	if (zfs_prop_get(later_dir, ZFS_PROP_ORIGIN, clonename,
	ZFS_MAX_DATASET_NAME_LEN, NULL, NULL, 0, B_TRUE) != 0) {
	zfs_close(earlier_dir);
	zfs_close(later_dir);
	return (B_FALSE);
	}

	zfs_handle_t *origin = zfs_open(earlier->zfs_hdl, clonename,
	ZFS_TYPE_DATASET);
	uint64_t origin_txg = zfs_prop_get_int(origin, ZFS_PROP_CREATETXG);

	/*
	* If "earlier" is exactly the origin, then
	* snapshot_is_before(earlier, origin) will return false (because
	* they're the same).
	*/
	if (origin_txg == earlier_txg &&
	strcmp(origin->zfs_name, earlier->zfs_name) == 0) {
	zfs_close(earlier_dir);
	zfs_close(later_dir);
	zfs_close(origin);
	return (B_TRUE);
	}
	zfs_close(earlier_dir);
	zfs_close(later_dir);

	ret = snapshot_is_before(earlier, origin);
	zfs_close(origin);
	return (ret);
	}

	/*
	* The "zhp" argument is the handle of the dataset to send (typically a
	* snapshot). The "from" argument is the full name of the snapshot or
	* bookmark that is the incremental source.
	*/
	int
	zfs_send_one(zfs_handle_t zhp, const char from, int fd, sendflags_t *flags,
	const char *redactbook)
	{
	int err;
	libzfs_handle_t *hdl = zhp->zfs_hdl;
	char *name = zhp->zfs_name;
	int orig_fd = fd;
	pthread_t ptid;
	progress_arg_t pa = { 0 };

	char errbuf[1024];
	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
	"warning: cannot send '%s'"), name);

	if (from != NULL && strchr(from, '@')) {
	zfs_handle_t *from_zhp = zfs_open(hdl, from,
	ZFS_TYPE_DATASET);
	if (from_zhp == NULL)
	return (-1);
	if (!snapshot_is_before(from_zhp, zhp)) {
	zfs_close(from_zhp);
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"not an earlier snapshot from the same fs"));
	return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf));
	}
	zfs_close(from_zhp);
	}

	if (redactbook != NULL) {
	char bookname[ZFS_MAX_DATASET_NAME_LEN];
	nvlist_t *redact_snaps;
	zfs_handle_t *book_zhp;
	char at, pound;
	int dsnamelen;

	pound = strchr(redactbook, '#');
	if (pound != NULL)
	redactbook = pound + 1;
	at = strchr(name, '@');
	if (at == NULL) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"cannot do a redacted send to a filesystem"));
	return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
	}
	dsnamelen = at - name;
	if (snprintf(bookname, sizeof (bookname), "%.*s#%s",
	dsnamelen, name, redactbook)
	>= sizeof (bookname)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"invalid bookmark name"));
	return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf));
	}
	book_zhp = zfs_open(hdl, bookname, ZFS_TYPE_BOOKMARK);
	if (book_zhp == NULL)
	return (-1);
	if (nvlist_lookup_nvlist(book_zhp->zfs_props,
	zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS),
	&redact_snaps) != 0 \|\| redact_snaps == NULL) {
	zfs_close(book_zhp);
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"not a redaction bookmark"));
	return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
	}
	zfs_close(book_zhp);
	}

	/*
	* Send fs properties
	*/
	if (flags->props \|\| flags->holds \|\| flags->backup) {
	/*
	* Note: the header generated by send_prelim_records()
	* assumes that the incremental source is in the same
	* filesystem/volume as the target (which is a requirement
	* when doing "zfs send -R"). But that isn't always the
	* case here (e.g. send from snap in origin, or send from
	* bookmark). We pass from=NULL, which will omit this
	* information from the prelim records; it isn't used
	* when receiving this type of stream.
	*/
	err = send_prelim_records(zhp, NULL, fd, B_TRUE, B_FALSE,
	flags->verbosity > 0, flags->dryrun, flags->raw,
	flags->replicate, B_FALSE, flags->backup, flags->holds,
	flags->props, flags->doall, NULL, NULL);
	if (err != 0)
	return (err);
	}

	/*
	* Perform size estimate if verbose was specified.
	*/
	if (flags->verbosity != 0) {
	err = estimate_size(zhp, from, fd, flags, 0, 0, 0, redactbook,
	errbuf);
	if (err != 0)
	return (err);
	}

	if (flags->dryrun)
	return (0);

	/*
	* If progress reporting is requested, spawn a new thread to poll
	* ZFS_IOC_SEND_PROGRESS at a regular interval.
	*/
	if (flags->progress) {
	pa.pa_zhp = zhp;
	pa.pa_fd = fd;
	pa.pa_parsable = flags->parsable;
	pa.pa_estimate = B_FALSE;
	pa.pa_verbosity = flags->verbosity;

	err = pthread_create(&ptid, NULL,
	send_progress_thread, &pa);
	if (err != 0) {
	zfs_error_aux(zhp->zfs_hdl, "%s", strerror(errno));
	return (zfs_error(zhp->zfs_hdl,
	EZFS_THREADCREATEFAILED, errbuf));
	}
	}

	err = lzc_send_redacted(name, from, fd,
	lzc_flags_from_sendflags(flags), redactbook);

	if (flags->progress) {
	void *status = NULL;
	if (err != 0)
	(void) pthread_cancel(ptid);
	(void) pthread_join(ptid, &status);
	int error = (int)(uintptr_t)status;
	if (error != 0 && status != PTHREAD_CANCELED)
	return (zfs_standard_error_fmt(hdl, error,
	dgettext(TEXT_DOMAIN,
	"progress thread exited nonzero")));
	}

	if (flags->props \|\| flags->holds \|\| flags->backup) {
	/* Write the final end record. */
	err = send_conclusion_record(orig_fd, NULL);
	if (err != 0)
	return (zfs_standard_error(hdl, err, errbuf));
	}
	if (err != 0) {
	switch (errno) {
	case EXDEV:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"not an earlier snapshot from the same fs"));
	return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf));

	case ENOENT:
	case ESRCH:
	if (lzc_exists(name)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"incremental source (%s) does not exist"),
	from);
	}
	return (zfs_error(hdl, EZFS_NOENT, errbuf));

	case EACCES:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"dataset key must be loaded"));
	return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf));

	case EBUSY:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"target is busy; if a filesystem, "
	"it must not be mounted"));
	return (zfs_error(hdl, EZFS_BUSY, errbuf));

	case EDQUOT:
	case EFAULT:
	case EFBIG:
	case EINVAL:
	case EIO:
	case ENOLINK:
	case ENOSPC:
	case ENOSTR:
	case ENXIO:
	case EPIPE:
	case ERANGE:
	case EROFS:
	zfs_error_aux(hdl, "%s", strerror(errno));
	return (zfs_error(hdl, EZFS_BADBACKUP, errbuf));

	default:
	return (zfs_standard_error(hdl, errno, errbuf));
	}
	}
	return (err != 0);
	}

	/*
	* Routines specific to "zfs recv"
	*/

	static int
	recv_read(libzfs_handle_t hdl, int fd, void buf, int ilen,
	boolean_t byteswap, zio_cksum_t *zc)
	{
	char *cp = buf;
	int rv;
	int len = ilen;

	do {
	rv = read(fd, cp, len);
	cp += rv;
	len -= rv;
	} while (rv > 0);

	if (rv < 0 \|\| len != 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"failed to read from stream"));
	return (zfs_error(hdl, EZFS_BADSTREAM, dgettext(TEXT_DOMAIN,
	"cannot receive")));
	}

	if (zc) {
	if (byteswap)
	fletcher_4_incremental_byteswap(buf, ilen, zc);
	else
	fletcher_4_incremental_native(buf, ilen, zc);
	}
	return (0);
	}

	static int
	recv_read_nvlist(libzfs_handle_t hdl, int fd, int len, nvlist_t *nvp,
	boolean_t byteswap, zio_cksum_t *zc)
	{
	char *buf;
	int err;

	buf = zfs_alloc(hdl, len);
	if (buf == NULL)
	return (ENOMEM);

	if (len > hdl->libzfs_max_nvlist) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "nvlist too large"));
	free(buf);
	return (ENOMEM);
	}

	err = recv_read(hdl, fd, buf, len, byteswap, zc);
	if (err != 0) {
	free(buf);
	return (err);
	}

	err = nvlist_unpack(buf, len, nvp, 0);
	free(buf);
	if (err != 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid "
	"stream (malformed nvlist)"));
	return (EINVAL);
	}
	return (0);
	}

	/*
	* Returns the grand origin (origin of origin of origin...) of a given handle.
	* If this dataset is not a clone, it simply returns a copy of the original
	* handle.
	*/
	static zfs_handle_t *
	recv_open_grand_origin(zfs_handle_t *zhp)
	{
	char origin[ZFS_MAX_DATASET_NAME_LEN];
	zprop_source_t src;
	zfs_handle_t *ozhp = zfs_handle_dup(zhp);

	while (ozhp != NULL) {
	if (zfs_prop_get(ozhp, ZFS_PROP_ORIGIN, origin,
	sizeof (origin), &src, NULL, 0, B_FALSE) != 0)
	break;

	(void) zfs_close(ozhp);
	ozhp = zfs_open(zhp->zfs_hdl, origin, ZFS_TYPE_FILESYSTEM);
	}

	return (ozhp);
	}

	static int
	recv_rename_impl(zfs_handle_t zhp, const char name, const char *newname)
	{
	int err;
	zfs_handle_t *ozhp = NULL;

	/*
	* Attempt to rename the dataset. If it fails with EACCES we have
	* attempted to rename the dataset outside of its encryption root.
	* Force the dataset to become an encryption root and try again.
	*/
	err = lzc_rename(name, newname);
	if (err == EACCES) {
	ozhp = recv_open_grand_origin(zhp);
	if (ozhp == NULL) {
	err = ENOENT;
	goto out;
	}

	err = lzc_change_key(ozhp->zfs_name, DCP_CMD_FORCE_NEW_KEY,
	NULL, NULL, 0);
	if (err != 0)
	goto out;

	err = lzc_rename(name, newname);
	}

	out:
	if (ozhp != NULL)
	zfs_close(ozhp);
	return (err);
	}

	static int
	recv_rename(libzfs_handle_t hdl, const char name, const char *tryname,
	int baselen, char newname, recvflags_t flags)
	{
	static int seq;
	int err;
	prop_changelist_t *clp = NULL;
	zfs_handle_t *zhp = NULL;

	zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET);
	if (zhp == NULL) {
	err = -1;
	goto out;
	}
	clp = changelist_gather(zhp, ZFS_PROP_NAME, 0,
	flags->force ? MS_FORCE : 0);
	if (clp == NULL) {
	err = -1;
	goto out;
	}
	err = changelist_prefix(clp);
	if (err)
	goto out;

	if (tryname) {
	(void) strcpy(newname, tryname);
	if (flags->verbose) {
	(void) printf("attempting rename %s to %s\n",
	name, newname);
	}
	err = recv_rename_impl(zhp, name, newname);
	if (err == 0)
	changelist_rename(clp, name, tryname);
	} else {
	err = ENOENT;
	}

	if (err != 0 && strncmp(name + baselen, "recv-", 5) != 0) {
	seq++;

	(void) snprintf(newname, ZFS_MAX_DATASET_NAME_LEN,
	"%.*srecv-%u-%u", baselen, name, getpid(), seq);

	if (flags->verbose) {
	(void) printf("failed - trying rename %s to %s\n",
	name, newname);
	}
	err = recv_rename_impl(zhp, name, newname);
	if (err == 0)
	changelist_rename(clp, name, newname);
	if (err && flags->verbose) {
	(void) printf("failed (%u) - "
	"will try again on next pass\n", errno);
	}
	err = EAGAIN;
	} else if (flags->verbose) {
	if (err == 0)
	(void) printf("success\n");
	else
	(void) printf("failed (%u)\n", errno);
	}

	(void) changelist_postfix(clp);

	out:
	if (clp != NULL)
	changelist_free(clp);
	if (zhp != NULL)
	zfs_close(zhp);

	return (err);
	}

	static int
	recv_promote(libzfs_handle_t hdl, const char fsname,
	const char origin_fsname, recvflags_t flags)
	{
	int err;
	zfs_cmd_t zc = {"\0"};
	zfs_handle_t zhp = NULL, ozhp = NULL;

	if (flags->verbose)
	(void) printf("promoting %s\n", fsname);

	(void) strlcpy(zc.zc_value, origin_fsname, sizeof (zc.zc_value));
	(void) strlcpy(zc.zc_name, fsname, sizeof (zc.zc_name));

	/*
	* Attempt to promote the dataset. If it fails with EACCES the
	* promotion would cause this dataset to leave its encryption root.
	* Force the origin to become an encryption root and try again.
	*/
	err = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc);
	if (err == EACCES) {
	zhp = zfs_open(hdl, fsname, ZFS_TYPE_DATASET);
	if (zhp == NULL) {
	err = -1;
	goto out;
	}

	ozhp = recv_open_grand_origin(zhp);
	if (ozhp == NULL) {
	err = -1;
	goto out;
	}

	err = lzc_change_key(ozhp->zfs_name, DCP_CMD_FORCE_NEW_KEY,
	NULL, NULL, 0);
	if (err != 0)
	goto out;

	err = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc);
	}

	out:
	if (zhp != NULL)
	zfs_close(zhp);
	if (ozhp != NULL)
	zfs_close(ozhp);

	return (err);
	}

	static int
	recv_destroy(libzfs_handle_t hdl, const char name, int baselen,
	char newname, recvflags_t flags)
	{
	int err = 0;
	prop_changelist_t *clp;
	zfs_handle_t *zhp;
	boolean_t defer = B_FALSE;
	int spa_version;

	zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET);
	if (zhp == NULL)
	return (-1);
	clp = changelist_gather(zhp, ZFS_PROP_NAME, 0,
	flags->force ? MS_FORCE : 0);
	if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT &&
	zfs_spa_version(zhp, &spa_version) == 0 &&
	spa_version >= SPA_VERSION_USERREFS)
	defer = B_TRUE;
	zfs_close(zhp);
	if (clp == NULL)
	return (-1);
	err = changelist_prefix(clp);
	if (err)
	return (err);

	if (flags->verbose)
	(void) printf("attempting destroy %s\n", name);
	if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) {
	nvlist_t *nv = fnvlist_alloc();
	fnvlist_add_boolean(nv, name);
	err = lzc_destroy_snaps(nv, defer, NULL);
	fnvlist_free(nv);
	} else {
	err = lzc_destroy(name);
	}
	if (err == 0) {
	if (flags->verbose)
	(void) printf("success\n");
	changelist_remove(clp, name);
	}

	(void) changelist_postfix(clp);
	changelist_free(clp);

	/*
	* Deferred destroy might destroy the snapshot or only mark it to be
	* destroyed later, and it returns success in either case.
	*/
	if (err != 0 \|\| (defer && zfs_dataset_exists(hdl, name,
	ZFS_TYPE_SNAPSHOT))) {
	err = recv_rename(hdl, name, NULL, baselen, newname, flags);
	}

	return (err);
	}

	typedef struct guid_to_name_data {
	uint64_t guid;
	boolean_t bookmark_ok;
	char *name;
	char *skip;
	uint64_t *redact_snap_guids;
	uint64_t num_redact_snaps;
	} guid_to_name_data_t;

	static boolean_t
	redact_snaps_match(zfs_handle_t zhp, guid_to_name_data_t gtnd)
	{
	uint64_t *bmark_snaps;
	uint_t bmark_num_snaps;
	nvlist_t *nvl;
	if (zhp->zfs_type != ZFS_TYPE_BOOKMARK)
	return (B_FALSE);

	nvl = fnvlist_lookup_nvlist(zhp->zfs_props,
	zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS));
	bmark_snaps = fnvlist_lookup_uint64_array(nvl, ZPROP_VALUE,
	&bmark_num_snaps);
	if (bmark_num_snaps != gtnd->num_redact_snaps)
	return (B_FALSE);
	int i = 0;
	for (; i < bmark_num_snaps; i++) {
	int j = 0;
	for (; j < bmark_num_snaps; j++) {
	if (bmark_snaps[i] == gtnd->redact_snap_guids[j])
	break;
	}
	if (j == bmark_num_snaps)
	break;
	}
	return (i == bmark_num_snaps);
	}

	static int
	guid_to_name_cb(zfs_handle_t zhp, void arg)
	{
	guid_to_name_data_t *gtnd = arg;
	const char *slash;
	int err;

	if (gtnd->skip != NULL &&
	(slash = strrchr(zhp->zfs_name, '/')) != NULL &&
	strcmp(slash + 1, gtnd->skip) == 0) {
	zfs_close(zhp);
	return (0);
	}

	if (zfs_prop_get_int(zhp, ZFS_PROP_GUID) == gtnd->guid &&
	(gtnd->num_redact_snaps == -1 \|\| redact_snaps_match(zhp, gtnd))) {
	(void) strcpy(gtnd->name, zhp->zfs_name);
	zfs_close(zhp);
	return (EEXIST);
	}

	err = zfs_iter_children(zhp, guid_to_name_cb, gtnd);
	if (err != EEXIST && gtnd->bookmark_ok)
	err = zfs_iter_bookmarks(zhp, guid_to_name_cb, gtnd);
	zfs_close(zhp);
	return (err);
	}

	/*
	* Attempt to find the local dataset associated with this guid. In the case of
	* multiple matches, we attempt to find the "best" match by searching
	* progressively larger portions of the hierarchy. This allows one to send a
	* tree of datasets individually and guarantee that we will find the source
	* guid within that hierarchy, even if there are multiple matches elsewhere.
	*
	* If num_redact_snaps is not -1, we attempt to find a redaction bookmark with
	* the specified number of redaction snapshots. If num_redact_snaps isn't 0 or
	* -1, then redact_snap_guids will be an array of the guids of the snapshots the
	* redaction bookmark was created with. If num_redact_snaps is -1, then we will
	* attempt to find a snapshot or bookmark (if bookmark_ok is passed) with the
	* given guid. Note that a redaction bookmark can be returned if
	* num_redact_snaps == -1.
	*/
	static int
	guid_to_name_redact_snaps(libzfs_handle_t hdl, const char parent,
	uint64_t guid, boolean_t bookmark_ok, uint64_t *redact_snap_guids,
	uint64_t num_redact_snaps, char *name)
	{
	char pname[ZFS_MAX_DATASET_NAME_LEN];
	guid_to_name_data_t gtnd;

	gtnd.guid = guid;
	gtnd.bookmark_ok = bookmark_ok;
	gtnd.name = name;
	gtnd.skip = NULL;
	gtnd.redact_snap_guids = redact_snap_guids;
	gtnd.num_redact_snaps = num_redact_snaps;

	/*
	* Search progressively larger portions of the hierarchy, starting
	* with the filesystem specified by 'parent'. This will
	* select the "most local" version of the origin snapshot in the case
	* that there are multiple matching snapshots in the system.
	*/
	(void) strlcpy(pname, parent, sizeof (pname));
	char *cp = strrchr(pname, '@');
	if (cp == NULL)
	cp = strchr(pname, '\0');
	for (; cp != NULL; cp = strrchr(pname, '/')) {
	/* Chop off the last component and open the parent */
	*cp = '\0';
	zfs_handle_t *zhp = make_dataset_handle(hdl, pname);

	if (zhp == NULL)
	continue;
	int err = guid_to_name_cb(zfs_handle_dup(zhp), &gtnd);
	if (err != EEXIST)
	err = zfs_iter_children(zhp, guid_to_name_cb, &gtnd);
	if (err != EEXIST && bookmark_ok)
	err = zfs_iter_bookmarks(zhp, guid_to_name_cb, &gtnd);
	zfs_close(zhp);
	if (err == EEXIST)
	return (0);

	/*
	* Remember the last portion of the dataset so we skip it next
	* time through (as we've already searched that portion of the
	* hierarchy).
	*/
	gtnd.skip = strrchr(pname, '/') + 1;
	}

	return (ENOENT);
	}

	static int
	guid_to_name(libzfs_handle_t hdl, const char parent, uint64_t guid,
	boolean_t bookmark_ok, char *name)
	{
	return (guid_to_name_redact_snaps(hdl, parent, guid, bookmark_ok, NULL,
	-1, name));
	}

	/*
	* Return +1 if guid1 is before guid2, 0 if they are the same, and -1 if
	* guid1 is after guid2.
	*/
	static int
	created_before(libzfs_handle_t hdl, avl_tree_t avl,
	uint64_t guid1, uint64_t guid2)
	{
	nvlist_t *nvfs;
	char fsname = NULL, snapname = NULL;
	char buf[ZFS_MAX_DATASET_NAME_LEN];
	int rv;
	zfs_handle_t guid1hdl, guid2hdl;
	uint64_t create1, create2;

	if (guid2 == 0)
	return (0);
	if (guid1 == 0)
	return (1);

	nvfs = fsavl_find(avl, guid1, &snapname);
	fsname = fnvlist_lookup_string(nvfs, "name");
	(void) snprintf(buf, sizeof (buf), "%s@%s", fsname, snapname);
	guid1hdl = zfs_open(hdl, buf, ZFS_TYPE_SNAPSHOT);
	if (guid1hdl == NULL)
	return (-1);

	nvfs = fsavl_find(avl, guid2, &snapname);
	fsname = fnvlist_lookup_string(nvfs, "name");
	(void) snprintf(buf, sizeof (buf), "%s@%s", fsname, snapname);
	guid2hdl = zfs_open(hdl, buf, ZFS_TYPE_SNAPSHOT);
	if (guid2hdl == NULL) {
	zfs_close(guid1hdl);
	return (-1);
	}

	create1 = zfs_prop_get_int(guid1hdl, ZFS_PROP_CREATETXG);
	create2 = zfs_prop_get_int(guid2hdl, ZFS_PROP_CREATETXG);

	if (create1 < create2)
	rv = -1;
	else if (create1 > create2)
	rv = +1;
	else
	rv = 0;

	zfs_close(guid1hdl);
	zfs_close(guid2hdl);

	return (rv);
	}

	/*
	* This function reestablishes the hierarchy of encryption roots after a
	* recursive incremental receive has completed. This must be done after the
	* second call to recv_incremental_replication() has renamed and promoted all
	* sent datasets to their final locations in the dataset hierarchy.
	*/
	static int
	recv_fix_encryption_hierarchy(libzfs_handle_t hdl, const char top_zfs,
	nvlist_t stream_nv, avl_tree_t stream_avl)
	{
	int err;
	nvpair_t *fselem = NULL;
	nvlist_t *stream_fss;

	stream_fss = fnvlist_lookup_nvlist(stream_nv, "fss");

	while ((fselem = nvlist_next_nvpair(stream_fss, fselem)) != NULL) {
	zfs_handle_t *zhp = NULL;
	uint64_t crypt;
	nvlist_t snaps, props, *stream_nvfs = NULL;
	nvpair_t *snapel = NULL;
	boolean_t is_encroot, is_clone, stream_encroot;
	char *cp;
	char *stream_keylocation = NULL;
	char keylocation[MAXNAMELEN];
	char fsname[ZFS_MAX_DATASET_NAME_LEN];

	keylocation[0] = '\0';
	stream_nvfs = fnvpair_value_nvlist(fselem);
	snaps = fnvlist_lookup_nvlist(stream_nvfs, "snaps");
	props = fnvlist_lookup_nvlist(stream_nvfs, "props");
	stream_encroot = nvlist_exists(stream_nvfs, "is_encroot");

	/* find a snapshot from the stream that exists locally */
	err = ENOENT;
	while ((snapel = nvlist_next_nvpair(snaps, snapel)) != NULL) {
	uint64_t guid;

	guid = fnvpair_value_uint64(snapel);
	err = guid_to_name(hdl, top_zfs, guid, B_FALSE,
	fsname);
	if (err == 0)
	break;
	}

	if (err != 0)
	continue;

	cp = strchr(fsname, '@');
	if (cp != NULL)
	*cp = '\0';

	zhp = zfs_open(hdl, fsname, ZFS_TYPE_DATASET);
	if (zhp == NULL) {
	err = ENOENT;
	goto error;
	}

	crypt = zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION);
	is_clone = zhp->zfs_dmustats.dds_origin[0] != '\0';
	(void) zfs_crypto_get_encryption_root(zhp, &is_encroot, NULL);

	/* we don't need to do anything for unencrypted datasets */
	if (crypt == ZIO_CRYPT_OFF) {
	zfs_close(zhp);
	continue;
	}

	/*
	* If the dataset is flagged as an encryption root, was not
	* received as a clone and is not currently an encryption root,
	* force it to become one. Fixup the keylocation if necessary.
	*/
	if (stream_encroot) {
	if (!is_clone && !is_encroot) {
	err = lzc_change_key(fsname,
	DCP_CMD_FORCE_NEW_KEY, NULL, NULL, 0);
	if (err != 0) {
	zfs_close(zhp);
	goto error;
	}
	}

	stream_keylocation = fnvlist_lookup_string(props,
	zfs_prop_to_name(ZFS_PROP_KEYLOCATION));

	/*
	* Refresh the properties in case the call to
	* lzc_change_key() changed the value.
	*/
	zfs_refresh_properties(zhp);
	err = zfs_prop_get(zhp, ZFS_PROP_KEYLOCATION,
	keylocation, sizeof (keylocation), NULL, NULL,
	0, B_TRUE);
	if (err != 0) {
	zfs_close(zhp);
	goto error;
	}

	if (strcmp(keylocation, stream_keylocation) != 0) {
	err = zfs_prop_set(zhp,
	zfs_prop_to_name(ZFS_PROP_KEYLOCATION),
	stream_keylocation);
	if (err != 0) {
	zfs_close(zhp);
	goto error;
	}
	}
	}

	/*
	* If the dataset is not flagged as an encryption root and is
	* currently an encryption root, force it to inherit from its
	* parent. The root of a raw send should never be
	* force-inherited.
	*/
	if (!stream_encroot && is_encroot &&
	strcmp(top_zfs, fsname) != 0) {
	err = lzc_change_key(fsname, DCP_CMD_FORCE_INHERIT,
	NULL, NULL, 0);
	if (err != 0) {
	zfs_close(zhp);
	goto error;
	}
	}

	zfs_close(zhp);
	}

	return (0);

	error:
	return (err);
	}

	static int
	recv_incremental_replication(libzfs_handle_t hdl, const char tofs,
	recvflags_t flags, nvlist_t stream_nv, avl_tree_t *stream_avl,
	nvlist_t *renamed)
	{
	nvlist_t local_nv, deleted = NULL;
	avl_tree_t *local_avl;
	nvpair_t fselem, nextfselem;
	char *fromsnap;
	char newname[ZFS_MAX_DATASET_NAME_LEN];
	char guidname[32];
	int error;
	boolean_t needagain, progress, recursive;
	char s1, s2;

	fromsnap = fnvlist_lookup_string(stream_nv, "fromsnap");

	recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") ==
	ENOENT);

	if (flags->dryrun)
	return (0);

	again:
	needagain = progress = B_FALSE;

	deleted = fnvlist_alloc();

	if ((error = gather_nvlist(hdl, tofs, fromsnap, NULL,
	recursive, B_TRUE, B_FALSE, recursive, B_FALSE, B_FALSE, B_FALSE,
	B_FALSE, B_TRUE, &local_nv, &local_avl)) != 0)
	return (error);

	/*
	* Process deletes and renames
	*/
	for (fselem = nvlist_next_nvpair(local_nv, NULL);
	fselem; fselem = nextfselem) {
	nvlist_t nvfs, snaps;
	nvlist_t *stream_nvfs = NULL;
	nvpair_t snapelem, nextsnapelem;
	uint64_t fromguid = 0;
	uint64_t originguid = 0;
	uint64_t stream_originguid = 0;
	uint64_t parent_fromsnap_guid, stream_parent_fromsnap_guid;
	char fsname, stream_fsname;

	nextfselem = nvlist_next_nvpair(local_nv, fselem);

	nvfs = fnvpair_value_nvlist(fselem);
	snaps = fnvlist_lookup_nvlist(nvfs, "snaps");
	fsname = fnvlist_lookup_string(nvfs, "name");
	parent_fromsnap_guid = fnvlist_lookup_uint64(nvfs,
	"parentfromsnap");
	(void) nvlist_lookup_uint64(nvfs, "origin", &originguid);

	/*
	* First find the stream's fs, so we can check for
	* a different origin (due to "zfs promote")
	*/
	for (snapelem = nvlist_next_nvpair(snaps, NULL);
	snapelem; snapelem = nvlist_next_nvpair(snaps, snapelem)) {
	uint64_t thisguid;

	thisguid = fnvpair_value_uint64(snapelem);
	stream_nvfs = fsavl_find(stream_avl, thisguid, NULL);

	if (stream_nvfs != NULL)
	break;
	}

	/* check for promote */
	(void) nvlist_lookup_uint64(stream_nvfs, "origin",
	&stream_originguid);
	if (stream_nvfs && originguid != stream_originguid) {
	switch (created_before(hdl, local_avl,
	stream_originguid, originguid)) {
	case 1: {
	/* promote it! */
	nvlist_t *origin_nvfs;
	char *origin_fsname;

	origin_nvfs = fsavl_find(local_avl, originguid,
	NULL);
	origin_fsname = fnvlist_lookup_string(
	origin_nvfs, "name");
	error = recv_promote(hdl, fsname, origin_fsname,
	flags);
	if (error == 0)
	progress = B_TRUE;
	break;
	}
	default:
	break;
	case -1:
	fsavl_destroy(local_avl);
	fnvlist_free(local_nv);
	return (-1);
	}
	/*
	* We had/have the wrong origin, therefore our
	* list of snapshots is wrong. Need to handle
	* them on the next pass.
	*/
	needagain = B_TRUE;
	continue;
	}

	for (snapelem = nvlist_next_nvpair(snaps, NULL);
	snapelem; snapelem = nextsnapelem) {
	uint64_t thisguid;
	char *stream_snapname;
	nvlist_t found, props;

	nextsnapelem = nvlist_next_nvpair(snaps, snapelem);

	thisguid = fnvpair_value_uint64(snapelem);
	found = fsavl_find(stream_avl, thisguid,
	&stream_snapname);

	/* check for delete */
	if (found == NULL) {
	char name[ZFS_MAX_DATASET_NAME_LEN];

	if (!flags->force)
	continue;

	(void) snprintf(name, sizeof (name), "%s@%s",
	fsname, nvpair_name(snapelem));

	error = recv_destroy(hdl, name,
	strlen(fsname)+1, newname, flags);
	if (error)
	needagain = B_TRUE;
	else
	progress = B_TRUE;
	sprintf(guidname, "%llu",
	(u_longlong_t)thisguid);
	nvlist_add_boolean(deleted, guidname);
	continue;
	}

	stream_nvfs = found;

	if (0 == nvlist_lookup_nvlist(stream_nvfs, "snapprops",
	&props) && 0 == nvlist_lookup_nvlist(props,
	stream_snapname, &props)) {
	zfs_cmd_t zc = {"\0"};

	zc.zc_cookie = B_TRUE; /* received */
	(void) snprintf(zc.zc_name, sizeof (zc.zc_name),
	"%s@%s", fsname, nvpair_name(snapelem));
	if (zcmd_write_src_nvlist(hdl, &zc,
	props) == 0) {
	(void) zfs_ioctl(hdl,
	ZFS_IOC_SET_PROP, &zc);
	zcmd_free_nvlists(&zc);
	}
	}

	/* check for different snapname */
	if (strcmp(nvpair_name(snapelem),
	stream_snapname) != 0) {
	char name[ZFS_MAX_DATASET_NAME_LEN];
	char tryname[ZFS_MAX_DATASET_NAME_LEN];

	(void) snprintf(name, sizeof (name), "%s@%s",
	fsname, nvpair_name(snapelem));
	(void) snprintf(tryname, sizeof (name), "%s@%s",
	fsname, stream_snapname);

	error = recv_rename(hdl, name, tryname,
	strlen(fsname)+1, newname, flags);
	if (error)
	needagain = B_TRUE;
	else
	progress = B_TRUE;
	}

	if (strcmp(stream_snapname, fromsnap) == 0)
	fromguid = thisguid;
	}

	/* check for delete */
	if (stream_nvfs == NULL) {
	if (!flags->force)
	continue;

	error = recv_destroy(hdl, fsname, strlen(tofs)+1,
	newname, flags);
	if (error)
	needagain = B_TRUE;
	else
	progress = B_TRUE;
	sprintf(guidname, "%llu",
	(u_longlong_t)parent_fromsnap_guid);
	nvlist_add_boolean(deleted, guidname);
	continue;
	}

	if (fromguid == 0) {
	if (flags->verbose) {
	(void) printf("local fs %s does not have "
	"fromsnap (%s in stream); must have "
	"been deleted locally; ignoring\n",
	fsname, fromsnap);
	}
	continue;
	}

	stream_fsname = fnvlist_lookup_string(stream_nvfs, "name");
	stream_parent_fromsnap_guid = fnvlist_lookup_uint64(
	stream_nvfs, "parentfromsnap");

	s1 = strrchr(fsname, '/');
	s2 = strrchr(stream_fsname, '/');

	/*
	* Check if we're going to rename based on parent guid change
	* and the current parent guid was also deleted. If it was then
	* rename will fail and is likely unneeded, so avoid this and
	* force an early retry to determine the new
	* parent_fromsnap_guid.
	*/
	if (stream_parent_fromsnap_guid != 0 &&
	parent_fromsnap_guid != 0 &&
	stream_parent_fromsnap_guid != parent_fromsnap_guid) {
	sprintf(guidname, "%llu",
	(u_longlong_t)parent_fromsnap_guid);
	if (nvlist_exists(deleted, guidname)) {
	progress = B_TRUE;
	needagain = B_TRUE;
	goto doagain;
	}
	}

	/*
	* Check for rename. If the exact receive path is specified, it
	* does not count as a rename, but we still need to check the
	* datasets beneath it.
	*/
	if ((stream_parent_fromsnap_guid != 0 &&
	parent_fromsnap_guid != 0 &&
	stream_parent_fromsnap_guid != parent_fromsnap_guid) \|\|
	((flags->isprefix \|\| strcmp(tofs, fsname) != 0) &&
	(s1 != NULL) && (s2 != NULL) && strcmp(s1, s2) != 0)) {
	nvlist_t *parent;
	char tryname[ZFS_MAX_DATASET_NAME_LEN];

	parent = fsavl_find(local_avl,
	stream_parent_fromsnap_guid, NULL);
	/*
	* NB: parent might not be found if we used the
	* tosnap for stream_parent_fromsnap_guid,
	* because the parent is a newly-created fs;
	* we'll be able to rename it after we recv the
	* new fs.
	*/
	if (parent != NULL) {
	char *pname;

	pname = fnvlist_lookup_string(parent, "name");
	(void) snprintf(tryname, sizeof (tryname),
	"%s%s", pname, strrchr(stream_fsname, '/'));
	} else {
	tryname[0] = '\0';
	if (flags->verbose) {
	(void) printf("local fs %s new parent "
	"not found\n", fsname);
	}
	}

	newname[0] = '\0';

	error = recv_rename(hdl, fsname, tryname,
	strlen(tofs)+1, newname, flags);

	if (renamed != NULL && newname[0] != '\0') {
	fnvlist_add_boolean(renamed, newname);
	}

	if (error)
	needagain = B_TRUE;
	else
	progress = B_TRUE;
	}
	}

	doagain:
	fsavl_destroy(local_avl);
	fnvlist_free(local_nv);
	fnvlist_free(deleted);

	if (needagain && progress) {
	/* do another pass to fix up temporary names */
	if (flags->verbose)
	(void) printf("another pass:\n");
	goto again;
	}

	return (needagain \|\| error != 0);
	}

	static int
	zfs_receive_package(libzfs_handle_t hdl, int fd, const char destname,
	recvflags_t flags, dmu_replay_record_t drr, zio_cksum_t *zc,
	char *top_zfs, nvlist_t cmdprops)
	{
	nvlist_t *stream_nv = NULL;
	avl_tree_t *stream_avl = NULL;
	char *fromsnap = NULL;
	char *sendsnap = NULL;
	char *cp;
	char tofs[ZFS_MAX_DATASET_NAME_LEN];
	char sendfs[ZFS_MAX_DATASET_NAME_LEN];
	char errbuf[1024];
	dmu_replay_record_t drre;
	int error;
	boolean_t anyerr = B_FALSE;
	boolean_t softerr = B_FALSE;
	boolean_t recursive, raw;

	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
	"cannot receive"));

	assert(drr->drr_type == DRR_BEGIN);
	assert(drr->drr_u.drr_begin.drr_magic == DMU_BACKUP_MAGIC);
	assert(DMU_GET_STREAM_HDRTYPE(drr->drr_u.drr_begin.drr_versioninfo) ==
	DMU_COMPOUNDSTREAM);

	/*
	* Read in the nvlist from the stream.
	*/
	if (drr->drr_payloadlen != 0) {
	error = recv_read_nvlist(hdl, fd, drr->drr_payloadlen,
	&stream_nv, flags->byteswap, zc);
	if (error) {
	error = zfs_error(hdl, EZFS_BADSTREAM, errbuf);
	goto out;
	}
	}

	recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") ==
	ENOENT);
	raw = (nvlist_lookup_boolean(stream_nv, "raw") == 0);

	if (recursive && strchr(destname, '@')) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"cannot specify snapshot name for multi-snapshot stream"));
	error = zfs_error(hdl, EZFS_BADSTREAM, errbuf);
	goto out;
	}

	/*
	* Read in the end record and verify checksum.
	*/
	if (0 != (error = recv_read(hdl, fd, &drre, sizeof (drre),
	flags->byteswap, NULL)))
	goto out;
	if (flags->byteswap) {
	drre.drr_type = BSWAP_32(drre.drr_type);
	drre.drr_u.drr_end.drr_checksum.zc_word[0] =
	BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[0]);
	drre.drr_u.drr_end.drr_checksum.zc_word[1] =
	BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[1]);
	drre.drr_u.drr_end.drr_checksum.zc_word[2] =
	BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[2]);
	drre.drr_u.drr_end.drr_checksum.zc_word[3] =
	BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[3]);
	}
	if (drre.drr_type != DRR_END) {
	error = zfs_error(hdl, EZFS_BADSTREAM, errbuf);
	goto out;
	}
	if (!ZIO_CHECKSUM_EQUAL(drre.drr_u.drr_end.drr_checksum, *zc)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"incorrect header checksum"));
	error = zfs_error(hdl, EZFS_BADSTREAM, errbuf);
	goto out;
	}

	(void) nvlist_lookup_string(stream_nv, "fromsnap", &fromsnap);

	if (drr->drr_payloadlen != 0) {
	nvlist_t *stream_fss;

	stream_fss = fnvlist_lookup_nvlist(stream_nv, "fss");
	if ((stream_avl = fsavl_create(stream_fss)) == NULL) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"couldn't allocate avl tree"));
	error = zfs_error(hdl, EZFS_NOMEM, errbuf);
	goto out;
	}

	if (fromsnap != NULL && recursive) {
	nvlist_t *renamed = NULL;
	nvpair_t *pair = NULL;

	(void) strlcpy(tofs, destname, sizeof (tofs));
	if (flags->isprefix) {
	struct drr_begin *drrb = &drr->drr_u.drr_begin;
	int i;

	if (flags->istail) {
	cp = strrchr(drrb->drr_toname, '/');
	if (cp == NULL) {
	(void) strlcat(tofs, "/",
	sizeof (tofs));
	i = 0;
	} else {
	i = (cp - drrb->drr_toname);
	}
	} else {
	i = strcspn(drrb->drr_toname, "/@");
	}
	/* zfs_receive_one() will create_parents() */
	(void) strlcat(tofs, &drrb->drr_toname[i],
	sizeof (tofs));
	*strchr(tofs, '@') = '\0';
	}

	if (!flags->dryrun && !flags->nomount) {
	renamed = fnvlist_alloc();
	}

	softerr = recv_incremental_replication(hdl, tofs, flags,
	stream_nv, stream_avl, renamed);

	/* Unmount renamed filesystems before receiving. */
	while ((pair = nvlist_next_nvpair(renamed,
	pair)) != NULL) {
	zfs_handle_t *zhp;
	prop_changelist_t *clp = NULL;

	zhp = zfs_open(hdl, nvpair_name(pair),
	ZFS_TYPE_FILESYSTEM);
	if (zhp != NULL) {
	clp = changelist_gather(zhp,
	ZFS_PROP_MOUNTPOINT, 0,
	flags->forceunmount ? MS_FORCE : 0);
	zfs_close(zhp);
	if (clp != NULL) {
	softerr \|=
	changelist_prefix(clp);
	changelist_free(clp);
	}
	}
	}

	fnvlist_free(renamed);
	}
	}

	/*
	* Get the fs specified by the first path in the stream (the top level
	* specified by 'zfs send') and pass it to each invocation of
	* zfs_receive_one().
	*/
	(void) strlcpy(sendfs, drr->drr_u.drr_begin.drr_toname,
	sizeof (sendfs));
	if ((cp = strchr(sendfs, '@')) != NULL) {
	*cp = '\0';
	/*
	* Find the "sendsnap", the final snapshot in a replication
	* stream. zfs_receive_one() handles certain errors
	* differently, depending on if the contained stream is the
	* last one or not.
	*/
	sendsnap = (cp + 1);
	}

	/* Finally, receive each contained stream */
	do {
	/*
	* we should figure out if it has a recoverable
	* error, in which case do a recv_skip() and drive on.
	* Note, if we fail due to already having this guid,
	* zfs_receive_one() will take care of it (ie,
	* recv_skip() and return 0).
	*/
	error = zfs_receive_impl(hdl, destname, NULL, flags, fd,
	sendfs, stream_nv, stream_avl, top_zfs, sendsnap, cmdprops);
	if (error == ENODATA) {
	error = 0;
	break;
	}
	anyerr \|= error;
	} while (error == 0);

	if (drr->drr_payloadlen != 0 && recursive && fromsnap != NULL) {
	/*
	* Now that we have the fs's they sent us, try the
	* renames again.
	*/
	softerr = recv_incremental_replication(hdl, tofs, flags,
	stream_nv, stream_avl, NULL);
	}

	if (raw && softerr == 0 && *top_zfs != NULL) {
	softerr = recv_fix_encryption_hierarchy(hdl, *top_zfs,
	stream_nv, stream_avl);
	}

	out:
	fsavl_destroy(stream_avl);
	fnvlist_free(stream_nv);
	if (softerr)
	error = -2;
	if (anyerr)
	error = -1;
	return (error);
	}

	static void
	trunc_prop_errs(int truncated)
	{
	ASSERT(truncated != 0);

	if (truncated == 1)
	(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
	"1 more property could not be set\n"));
	else
	(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
	"%d more properties could not be set\n"), truncated);
	}

	static int
	recv_skip(libzfs_handle_t *hdl, int fd, boolean_t byteswap)
	{
	dmu_replay_record_t *drr;
	void *buf = zfs_alloc(hdl, SPA_MAXBLOCKSIZE);
	uint64_t payload_size;
	char errbuf[1024];

	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
	"cannot receive"));

	/* XXX would be great to use lseek if possible... */
	drr = buf;

	while (recv_read(hdl, fd, drr, sizeof (dmu_replay_record_t),
	byteswap, NULL) == 0) {
	if (byteswap)
	drr->drr_type = BSWAP_32(drr->drr_type);

	switch (drr->drr_type) {
	case DRR_BEGIN:
	if (drr->drr_payloadlen != 0) {
	(void) recv_read(hdl, fd, buf,
	drr->drr_payloadlen, B_FALSE, NULL);
	}
	break;

	case DRR_END:
	free(buf);
	return (0);

	case DRR_OBJECT:
	if (byteswap) {
	drr->drr_u.drr_object.drr_bonuslen =
	BSWAP_32(drr->drr_u.drr_object.
	drr_bonuslen);
	drr->drr_u.drr_object.drr_raw_bonuslen =
	BSWAP_32(drr->drr_u.drr_object.
	drr_raw_bonuslen);
	}

	payload_size =
	DRR_OBJECT_PAYLOAD_SIZE(&drr->drr_u.drr_object);
	(void) recv_read(hdl, fd, buf, payload_size,
	B_FALSE, NULL);
	break;

	case DRR_WRITE:
	if (byteswap) {
	drr->drr_u.drr_write.drr_logical_size =
	BSWAP_64(
	drr->drr_u.drr_write.drr_logical_size);
	drr->drr_u.drr_write.drr_compressed_size =
	BSWAP_64(
	drr->drr_u.drr_write.drr_compressed_size);
	}
	payload_size =
	DRR_WRITE_PAYLOAD_SIZE(&drr->drr_u.drr_write);
	assert(payload_size <= SPA_MAXBLOCKSIZE);
	(void) recv_read(hdl, fd, buf,
	payload_size, B_FALSE, NULL);
	break;
	case DRR_SPILL:
	if (byteswap) {
	drr->drr_u.drr_spill.drr_length =
	BSWAP_64(drr->drr_u.drr_spill.drr_length);
	drr->drr_u.drr_spill.drr_compressed_size =
	BSWAP_64(drr->drr_u.drr_spill.
	drr_compressed_size);
	}

	payload_size =
	DRR_SPILL_PAYLOAD_SIZE(&drr->drr_u.drr_spill);
	(void) recv_read(hdl, fd, buf, payload_size,
	B_FALSE, NULL);
	break;
	case DRR_WRITE_EMBEDDED:
	if (byteswap) {
	drr->drr_u.drr_write_embedded.drr_psize =
	BSWAP_32(drr->drr_u.drr_write_embedded.
	drr_psize);
	}
	(void) recv_read(hdl, fd, buf,
	P2ROUNDUP(drr->drr_u.drr_write_embedded.drr_psize,
	8), B_FALSE, NULL);
	break;
	case DRR_OBJECT_RANGE:
	case DRR_WRITE_BYREF:
	case DRR_FREEOBJECTS:
	case DRR_FREE:
	break;

	default:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"invalid record type"));
	free(buf);
	return (zfs_error(hdl, EZFS_BADSTREAM, errbuf));
	}
	}

	free(buf);
	return (-1);
	}

	static void
	recv_ecksum_set_aux(libzfs_handle_t hdl, const char target_snap,
	boolean_t resumable, boolean_t checksum)
	{
	char target_fs[ZFS_MAX_DATASET_NAME_LEN];

	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, (checksum ?
	"checksum mismatch" : "incomplete stream")));

	if (!resumable)
	return;
	(void) strlcpy(target_fs, target_snap, sizeof (target_fs));
	*strchr(target_fs, '@') = '\0';
	zfs_handle_t *zhp = zfs_open(hdl, target_fs,
	ZFS_TYPE_FILESYSTEM \| ZFS_TYPE_VOLUME);
	if (zhp == NULL)
	return;

	char token_buf[ZFS_MAXPROPLEN];
	int error = zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
	token_buf, sizeof (token_buf),
	NULL, NULL, 0, B_TRUE);
	if (error == 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"checksum mismatch or incomplete stream.\n"
	"Partially received snapshot is saved.\n"
	"A resuming stream can be generated on the sending "
	"system by running:\n"
	" zfs send -t %s"),
	token_buf);
	}
	zfs_close(zhp);
	}

	/*
	* Prepare a new nvlist of properties that are to override (-o) or be excluded
	* (-x) from the received dataset
	* recvprops: received properties from the send stream
	* cmdprops: raw input properties from command line
	* origprops: properties, both locally-set and received, currently set on the
	* target dataset if it exists, NULL otherwise.
	* oxprops: valid output override (-o) and excluded (-x) properties
	*/
	static int
	zfs_setup_cmdline_props(libzfs_handle_t *hdl, zfs_type_t type,
	char *fsname, boolean_t zoned, boolean_t recursive, boolean_t newfs,
	boolean_t raw, boolean_t toplevel, nvlist_t recvprops, nvlist_t cmdprops,
	nvlist_t origprops, nvlist_t oxprops, uint8_t *wkeydata_out,
	uint_t wkeylen_out, const char errbuf)
	{
	nvpair_t *nvp;
	nvlist_t oprops, voprops;
	zfs_handle_t *zhp = NULL;
	zpool_handle_t *zpool_hdl = NULL;
	char *cp;
	int ret = 0;
	char namebuf[ZFS_MAX_DATASET_NAME_LEN];

	if (nvlist_empty(cmdprops))
	return (0); /* No properties to override or exclude */

	*oxprops = fnvlist_alloc();
	oprops = fnvlist_alloc();

	strlcpy(namebuf, fsname, ZFS_MAX_DATASET_NAME_LEN);

	/*
	* Get our dataset handle. The target dataset may not exist yet.
	*/
	if (zfs_dataset_exists(hdl, namebuf, ZFS_TYPE_DATASET)) {
	zhp = zfs_open(hdl, namebuf, ZFS_TYPE_DATASET);
	if (zhp == NULL) {
	ret = -1;
	goto error;
	}
	}

	/* open the zpool handle */
	cp = strchr(namebuf, '/');
	if (cp != NULL)
	*cp = '\0';
	zpool_hdl = zpool_open(hdl, namebuf);
	if (zpool_hdl == NULL) {
	ret = -1;
	goto error;
	}

	/* restore namebuf to match fsname for later use */
	if (cp != NULL)
	*cp = '/';

	/*
	* first iteration: process excluded (-x) properties now and gather
	* added (-o) properties to be later processed by zfs_valid_proplist()
	*/
	nvp = NULL;
	while ((nvp = nvlist_next_nvpair(cmdprops, nvp)) != NULL) {
	const char *name = nvpair_name(nvp);
	zfs_prop_t prop = zfs_name_to_prop(name);

	/* "origin" is processed separately, don't handle it here */
	if (prop == ZFS_PROP_ORIGIN)
	continue;

	/* raw streams can't override encryption properties */
	if ((zfs_prop_encryption_key_param(prop) \|\|
	prop == ZFS_PROP_ENCRYPTION) && raw) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"encryption property '%s' cannot "
	"be set or excluded for raw streams."), name);
	ret = zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}

	/* incremental streams can only exclude encryption properties */
	if ((zfs_prop_encryption_key_param(prop) \|\|
	prop == ZFS_PROP_ENCRYPTION) && !newfs &&
	nvpair_type(nvp) != DATA_TYPE_BOOLEAN) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"encryption property '%s' cannot "
	"be set for incremental streams."), name);
	ret = zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}

	switch (nvpair_type(nvp)) {
	case DATA_TYPE_BOOLEAN: /* -x property */
	/*
	* DATA_TYPE_BOOLEAN is the way we're asked to "exclude"
	* a property: this is done by forcing an explicit
	* inherit on the destination so the effective value is
	* not the one we received from the send stream.
	*/
	if (!zfs_prop_valid_for_type(prop, type, B_FALSE) &&
	!zfs_prop_user(name)) {
	(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
	"Warning: %s: property '%s' does not "
	"apply to datasets of this type\n"),
	fsname, name);
	continue;
	}
	/*
	* We do this only if the property is not already
	* locally-set, in which case its value will take
	* priority over the received anyway.
	*/
	if (nvlist_exists(origprops, name)) {
	nvlist_t *attrs;
	char *source = NULL;

	attrs = fnvlist_lookup_nvlist(origprops, name);
	if (nvlist_lookup_string(attrs,
	ZPROP_SOURCE, &source) == 0 &&
	strcmp(source, ZPROP_SOURCE_VAL_RECVD) != 0)
	continue;
	}
	/*
	* We can't force an explicit inherit on non-inheritable
	* properties: if we're asked to exclude this kind of
	* values we remove them from "recvprops" input nvlist.
	*/
	if (!zfs_prop_inheritable(prop) &&
	!zfs_prop_user(name) && /* can be inherited too */
	nvlist_exists(recvprops, name))
	fnvlist_remove(recvprops, name);
	else
	fnvlist_add_nvpair(*oxprops, nvp);
	break;
	case DATA_TYPE_STRING: /* -o property=value */
	/*
	* we're trying to override a property that does not
	* make sense for this type of dataset, but we don't
	* want to fail if the receive is recursive: this comes
	* in handy when the send stream contains, for
	* instance, a child ZVOL and we're trying to receive
	* it with "-o atime=on"
	*/
	if (!zfs_prop_valid_for_type(prop, type, B_FALSE) &&
	!zfs_prop_user(name)) {
	if (recursive)
	continue;
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"property '%s' does not apply to datasets "
	"of this type"), name);
	ret = zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}
	fnvlist_add_nvpair(oprops, nvp);
	break;
	default:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"property '%s' must be a string or boolean"), name);
	ret = zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}
	}

	if (toplevel) {
	/* convert override strings properties to native */
	if ((voprops = zfs_valid_proplist(hdl, ZFS_TYPE_DATASET,
	oprops, zoned, zhp, zpool_hdl, B_FALSE, errbuf)) == NULL) {
	ret = zfs_error(hdl, EZFS_BADPROP, errbuf);
	goto error;
	}

	/*
	* zfs_crypto_create() requires the parent name. Get it
	* by truncating the fsname copy stored in namebuf.
	*/
	cp = strrchr(namebuf, '/');
	if (cp != NULL)
	*cp = '\0';

	if (!raw && zfs_crypto_create(hdl, namebuf, voprops, NULL,
	B_FALSE, wkeydata_out, wkeylen_out) != 0) {
	fnvlist_free(voprops);
	ret = zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf);
	goto error;
	}

	/* second pass: process "-o" properties */
	fnvlist_merge(*oxprops, voprops);
	fnvlist_free(voprops);
	} else {
	/* override props on child dataset are inherited */
	nvp = NULL;
	while ((nvp = nvlist_next_nvpair(oprops, nvp)) != NULL) {
	const char *name = nvpair_name(nvp);
	fnvlist_add_boolean(*oxprops, name);
	}
	}

	error:
	if (zhp != NULL)
	zfs_close(zhp);
	if (zpool_hdl != NULL)
	zpool_close(zpool_hdl);
	fnvlist_free(oprops);
	return (ret);
	}

	/*
	* Restores a backup of tosnap from the file descriptor specified by infd.
	*/
	static int
	zfs_receive_one(libzfs_handle_t hdl, int infd, const char tosnap,
	const char originsnap, recvflags_t flags, dmu_replay_record_t *drr,
	dmu_replay_record_t drr_noswap, const char sendfs, nvlist_t *stream_nv,
	avl_tree_t stream_avl, char *top_zfs,
	const char finalsnap, nvlist_t cmdprops)
	{
	time_t begin_time;
	int ioctl_err, ioctl_errno, err;
	char *cp;
	struct drr_begin *drrb = &drr->drr_u.drr_begin;
	char errbuf[1024];
	const char *chopprefix;
	boolean_t newfs = B_FALSE;
	boolean_t stream_wantsnewfs, stream_resumingnewfs;
	boolean_t newprops = B_FALSE;
	uint64_t read_bytes = 0;
	uint64_t errflags = 0;
	uint64_t parent_snapguid = 0;
	prop_changelist_t *clp = NULL;
	nvlist_t *snapprops_nvlist = NULL;
	nvlist_t *snapholds_nvlist = NULL;
	zprop_errflags_t prop_errflags;
	nvlist_t *prop_errors = NULL;
	boolean_t recursive;
	char *snapname = NULL;
	char destsnap[MAXPATHLEN * 2];
	char origin[MAXNAMELEN];
	char name[MAXPATHLEN];
	char tmp_keylocation[MAXNAMELEN];
	nvlist_t rcvprops = NULL; / props received from the send stream */
	nvlist_t oxprops = NULL; / override (-o) and exclude (-x) props */
	nvlist_t origprops = NULL; / original props (if destination exists) */
	zfs_type_t type;
	boolean_t toplevel = B_FALSE;
	boolean_t zoned = B_FALSE;
	boolean_t hastoken = B_FALSE;
	boolean_t redacted;
	uint8_t *wkeydata = NULL;
	uint_t wkeylen = 0;

	begin_time = time(NULL);
	bzero(origin, MAXNAMELEN);
	bzero(tmp_keylocation, MAXNAMELEN);

	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
	"cannot receive"));

	recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") ==
	ENOENT);

	/* Did the user request holds be skipped via zfs recv -k? */
	boolean_t holds = flags->holds && !flags->skipholds;

	if (stream_avl != NULL) {
	char *keylocation = NULL;
	nvlist_t *lookup = NULL;
	nvlist_t *fs = fsavl_find(stream_avl, drrb->drr_toguid,
	&snapname);

	(void) nvlist_lookup_uint64(fs, "parentfromsnap",
	&parent_snapguid);
	err = nvlist_lookup_nvlist(fs, "props", &rcvprops);
	if (err) {
	rcvprops = fnvlist_alloc();
	newprops = B_TRUE;
	}

	/*
	* The keylocation property may only be set on encryption roots,
	* but this dataset might not become an encryption root until
	* recv_fix_encryption_hierarchy() is called. That function
	* will fixup the keylocation anyway, so we temporarily unset
	* the keylocation for now to avoid any errors from the receive
	* ioctl.
	*/
	err = nvlist_lookup_string(rcvprops,
	zfs_prop_to_name(ZFS_PROP_KEYLOCATION), &keylocation);
	if (err == 0) {
	strcpy(tmp_keylocation, keylocation);
	(void) nvlist_remove_all(rcvprops,
	zfs_prop_to_name(ZFS_PROP_KEYLOCATION));
	}

	if (flags->canmountoff) {
	fnvlist_add_uint64(rcvprops,
	zfs_prop_to_name(ZFS_PROP_CANMOUNT), 0);
	} else if (newprops) { /* nothing in rcvprops, eliminate it */
	fnvlist_free(rcvprops);
	rcvprops = NULL;
	newprops = B_FALSE;
	}
	if (0 == nvlist_lookup_nvlist(fs, "snapprops", &lookup)) {
	snapprops_nvlist = fnvlist_lookup_nvlist(lookup,
	snapname);
	}
	if (holds) {
	if (0 == nvlist_lookup_nvlist(fs, "snapholds",
	&lookup)) {
	snapholds_nvlist = fnvlist_lookup_nvlist(
	lookup, snapname);
	}
	}
	}

	cp = NULL;

	/*
	* Determine how much of the snapshot name stored in the stream
	* we are going to tack on to the name they specified on the
	* command line, and how much we are going to chop off.
	*
	* If they specified a snapshot, chop the entire name stored in
	* the stream.
	*/
	if (flags->istail) {
	/*
	* A filesystem was specified with -e. We want to tack on only
	* the tail of the sent snapshot path.
	*/
	if (strchr(tosnap, '@')) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid "
	"argument - snapshot not allowed with -e"));
	err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf);
	goto out;
	}

	chopprefix = strrchr(sendfs, '/');

	if (chopprefix == NULL) {
	/*
	* The tail is the poolname, so we need to
	* prepend a path separator.
	*/
	int len = strlen(drrb->drr_toname);
	cp = malloc(len + 2);
	cp[0] = '/';
	(void) strcpy(&cp[1], drrb->drr_toname);
	chopprefix = cp;
	} else {
	chopprefix = drrb->drr_toname + (chopprefix - sendfs);
	}
	} else if (flags->isprefix) {
	/*
	* A filesystem was specified with -d. We want to tack on
	* everything but the first element of the sent snapshot path
	* (all but the pool name).
	*/
	if (strchr(tosnap, '@')) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid "
	"argument - snapshot not allowed with -d"));
	err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf);
	goto out;
	}

	chopprefix = strchr(drrb->drr_toname, '/');
	if (chopprefix == NULL)
	chopprefix = strchr(drrb->drr_toname, '@');
	} else if (strchr(tosnap, '@') == NULL) {
	/*
	* If a filesystem was specified without -d or -e, we want to
	* tack on everything after the fs specified by 'zfs send'.
	*/
	chopprefix = drrb->drr_toname + strlen(sendfs);
	} else {
	/* A snapshot was specified as an exact path (no -d or -e). */
	if (recursive) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"cannot specify snapshot name for multi-snapshot "
	"stream"));
	err = zfs_error(hdl, EZFS_BADSTREAM, errbuf);
	goto out;
	}
	chopprefix = drrb->drr_toname + strlen(drrb->drr_toname);
	}

	ASSERT(strstr(drrb->drr_toname, sendfs) == drrb->drr_toname);
	ASSERT(chopprefix > drrb->drr_toname \|\| strchr(sendfs, '/') == NULL);
	ASSERT(chopprefix <= drrb->drr_toname + strlen(drrb->drr_toname) \|\|
	strchr(sendfs, '/') == NULL);
	ASSERT(chopprefix[0] == '/' \|\| chopprefix[0] == '@' \|\|
	chopprefix[0] == '\0');

	/*
	* Determine name of destination snapshot.
	*/
	(void) strlcpy(destsnap, tosnap, sizeof (destsnap));
	(void) strlcat(destsnap, chopprefix, sizeof (destsnap));
	free(cp);
	if (!zfs_name_valid(destsnap, ZFS_TYPE_SNAPSHOT)) {
	err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf);
	goto out;
	}

	/*
	* Determine the name of the origin snapshot.
	*/
	if (originsnap) {
	(void) strlcpy(origin, originsnap, sizeof (origin));
	if (flags->verbose)
	(void) printf("using provided clone origin %s\n",
	origin);
	} else if (drrb->drr_flags & DRR_FLAG_CLONE) {
	if (guid_to_name(hdl, destsnap,
	drrb->drr_fromguid, B_FALSE, origin) != 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"local origin for clone %s does not exist"),
	destsnap);
	err = zfs_error(hdl, EZFS_NOENT, errbuf);
	goto out;
	}
	if (flags->verbose)
	(void) printf("found clone origin %s\n", origin);
	}

	if ((DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) &
	DMU_BACKUP_FEATURE_DEDUP)) {
	(void) fprintf(stderr,
	gettext("ERROR: \"zfs receive\" no longer supports "
	"deduplicated send streams. Use\n"
	"the \"zstream redup\" command to convert this stream "
	"to a regular,\n"
	"non-deduplicated stream.\n"));
	err = zfs_error(hdl, EZFS_NOTSUP, errbuf);
	goto out;
	}

	boolean_t resuming = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) &
	DMU_BACKUP_FEATURE_RESUMING;
	boolean_t raw = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) &
	DMU_BACKUP_FEATURE_RAW;
	boolean_t embedded = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) &
	DMU_BACKUP_FEATURE_EMBED_DATA;
	stream_wantsnewfs = (drrb->drr_fromguid == 0 \|\|
	(drrb->drr_flags & DRR_FLAG_CLONE) \|\| originsnap) && !resuming;
	stream_resumingnewfs = (drrb->drr_fromguid == 0 \|\|
	(drrb->drr_flags & DRR_FLAG_CLONE) \|\| originsnap) && resuming;

	if (stream_wantsnewfs) {
	/*
	* if the parent fs does not exist, look for it based on
	* the parent snap GUID
	*/
	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
	"cannot receive new filesystem stream"));

	(void) strcpy(name, destsnap);
	cp = strrchr(name, '/');
	if (cp)
	*cp = '\0';
	if (cp &&
	!zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) {
	char suffix[ZFS_MAX_DATASET_NAME_LEN];
	(void) strcpy(suffix, strrchr(destsnap, '/'));
	if (guid_to_name(hdl, name, parent_snapguid,
	B_FALSE, destsnap) == 0) {
	*strchr(destsnap, '@') = '\0';
	(void) strcat(destsnap, suffix);
	}
	}
	} else {
	/*
	* If the fs does not exist, look for it based on the
	* fromsnap GUID.
	*/
	if (resuming) {
	(void) snprintf(errbuf, sizeof (errbuf),
	dgettext(TEXT_DOMAIN,
	"cannot receive resume stream"));
	} else {
	(void) snprintf(errbuf, sizeof (errbuf),
	dgettext(TEXT_DOMAIN,
	"cannot receive incremental stream"));
	}

	(void) strcpy(name, destsnap);
	*strchr(name, '@') = '\0';

	/*
	* If the exact receive path was specified and this is the
	* topmost path in the stream, then if the fs does not exist we
	* should look no further.
	*/
	if ((flags->isprefix \|\| (*(chopprefix = drrb->drr_toname +
	strlen(sendfs)) != '\0' && *chopprefix != '@')) &&
	!zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) {
	char snap[ZFS_MAX_DATASET_NAME_LEN];
	(void) strcpy(snap, strchr(destsnap, '@'));
	if (guid_to_name(hdl, name, drrb->drr_fromguid,
	B_FALSE, destsnap) == 0) {
	*strchr(destsnap, '@') = '\0';
	(void) strcat(destsnap, snap);
	}
	}
	}

	(void) strcpy(name, destsnap);
	*strchr(name, '@') = '\0';

	redacted = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) &
	DMU_BACKUP_FEATURE_REDACTED;

	if (zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) {
	zfs_cmd_t zc = {"\0"};
	zfs_handle_t *zhp;
	boolean_t encrypted;

	(void) strcpy(zc.zc_name, name);

	/*
	* Destination fs exists. It must be one of these cases:
	* - an incremental send stream
	* - the stream specifies a new fs (full stream or clone)
	* and they want us to blow away the existing fs (and
	* have therefore specified -F and removed any snapshots)
	* - we are resuming a failed receive.
	*/
	if (stream_wantsnewfs) {
	boolean_t is_volume = drrb->drr_type == DMU_OST_ZVOL;
	if (!flags->force) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"destination '%s' exists\n"
	"must specify -F to overwrite it"), name);
	err = zfs_error(hdl, EZFS_EXISTS, errbuf);
	goto out;
	}
	if (zfs_ioctl(hdl, ZFS_IOC_SNAPSHOT_LIST_NEXT,
	&zc) == 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"destination has snapshots (eg. %s)\n"
	"must destroy them to overwrite it"),
	zc.zc_name);
	err = zfs_error(hdl, EZFS_EXISTS, errbuf);
	goto out;
	}
	if (is_volume && strrchr(name, '/') == NULL) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"destination %s is the root dataset\n"
	"cannot overwrite with a ZVOL"),
	name);
	err = zfs_error(hdl, EZFS_EXISTS, errbuf);
	goto out;
	}
	if (is_volume &&
	zfs_ioctl(hdl, ZFS_IOC_DATASET_LIST_NEXT,
	&zc) == 0) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"destination has children (eg. %s)\n"
	"cannot overwrite with a ZVOL"),
	zc.zc_name);
	err = zfs_error(hdl, EZFS_WRONG_PARENT, errbuf);
	goto out;
	}
	}

	if ((zhp = zfs_open(hdl, name,
	ZFS_TYPE_FILESYSTEM \| ZFS_TYPE_VOLUME)) == NULL) {
	err = -1;
	goto out;
	}

	if (stream_wantsnewfs &&
	zhp->zfs_dmustats.dds_origin[0]) {
	zfs_close(zhp);
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"destination '%s' is a clone\n"
	"must destroy it to overwrite it"), name);
	err = zfs_error(hdl, EZFS_EXISTS, errbuf);
	goto out;
	}

	/*
	* Raw sends can not be performed as an incremental on top
	* of existing unencrypted datasets. zfs recv -F can't be
	* used to blow away an existing encrypted filesystem. This
	* is because it would require the dsl dir to point to the
	* new key (or lack of a key) and the old key at the same
	* time. The -F flag may still be used for deleting
	* intermediate snapshots that would otherwise prevent the
	* receive from working.
	*/
	encrypted = zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) !=
	ZIO_CRYPT_OFF;
	if (!stream_wantsnewfs && !encrypted && raw) {
	zfs_close(zhp);
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"cannot perform raw receive on top of "
	"existing unencrypted dataset"));
	err = zfs_error(hdl, EZFS_BADRESTORE, errbuf);
	goto out;
	}

	if (stream_wantsnewfs && flags->force &&
	((raw && !encrypted) \|\| encrypted)) {
	zfs_close(zhp);
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"zfs receive -F cannot be used to destroy an "
	"encrypted filesystem or overwrite an "
	"unencrypted one with an encrypted one"));
	err = zfs_error(hdl, EZFS_BADRESTORE, errbuf);
	goto out;
	}

	if (!flags->dryrun && zhp->zfs_type == ZFS_TYPE_FILESYSTEM &&
	(stream_wantsnewfs \|\| stream_resumingnewfs)) {
	/* We can't do online recv in this case */
	clp = changelist_gather(zhp, ZFS_PROP_NAME, 0,
	flags->forceunmount ? MS_FORCE : 0);
	if (clp == NULL) {
	zfs_close(zhp);
	err = -1;
	goto out;
	}
	if (changelist_prefix(clp) != 0) {
	changelist_free(clp);
	zfs_close(zhp);
	err = -1;
	goto out;
	}
	}

	/*
	* If we are resuming a newfs, set newfs here so that we will
	* mount it if the recv succeeds this time. We can tell
	* that it was a newfs on the first recv because the fs
	* itself will be inconsistent (if the fs existed when we
	* did the first recv, we would have received it into
	* .../%recv).
	*/
	if (resuming && zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT))
	newfs = B_TRUE;

	/* we want to know if we're zoned when validating -o\|-x props */
	zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED);

	/* may need this info later, get it now we have zhp around */
	if (zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, NULL, 0,
	NULL, NULL, 0, B_TRUE) == 0)
	hastoken = B_TRUE;

	/* gather existing properties on destination */
	origprops = fnvlist_alloc();
	fnvlist_merge(origprops, zhp->zfs_props);
	fnvlist_merge(origprops, zhp->zfs_user_props);

	zfs_close(zhp);
	} else {
	zfs_handle_t *zhp;

	/*
	* Destination filesystem does not exist. Therefore we better
	* be creating a new filesystem (either from a full backup, or
	* a clone). It would therefore be invalid if the user
	* specified only the pool name (i.e. if the destination name
	* contained no slash character).
	*/
	cp = strrchr(name, '/');

	if (!stream_wantsnewfs \|\| cp == NULL) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"destination '%s' does not exist"), name);
	err = zfs_error(hdl, EZFS_NOENT, errbuf);
	goto out;
	}

	/*
	* Trim off the final dataset component so we perform the
	* recvbackup ioctl to the filesystems's parent.
	*/
	*cp = '\0';

	if (flags->isprefix && !flags->istail && !flags->dryrun &&
	create_parents(hdl, destsnap, strlen(tosnap)) != 0) {
	err = zfs_error(hdl, EZFS_BADRESTORE, errbuf);
	goto out;
	}

	/* validate parent */
	zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET);
	if (zhp == NULL) {
	err = zfs_error(hdl, EZFS_BADRESTORE, errbuf);
	goto out;
	}
	if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"parent '%s' is not a filesystem"), name);
	err = zfs_error(hdl, EZFS_WRONG_PARENT, errbuf);
	zfs_close(zhp);
	goto out;
	}

	zfs_close(zhp);

	newfs = B_TRUE;
	*cp = '/';
	}

	if (flags->verbose) {
	(void) printf("%s %s stream of %s into %s\n",
	flags->dryrun ? "would receive" : "receiving",
	drrb->drr_fromguid ? "incremental" : "full",
	drrb->drr_toname, destsnap);
	(void) fflush(stdout);
	}

	/*
	* If this is the top-level dataset, record it so we can use it
	* for recursive operations later.
	*/
	if (top_zfs != NULL &&
	(top_zfs == NULL \|\| strcmp(top_zfs, name) == 0)) {
	toplevel = B_TRUE;
	if (*top_zfs == NULL)
	*top_zfs = zfs_strdup(hdl, name);
	}

	if (drrb->drr_type == DMU_OST_ZVOL) {
	type = ZFS_TYPE_VOLUME;
	} else if (drrb->drr_type == DMU_OST_ZFS) {
	type = ZFS_TYPE_FILESYSTEM;
	} else {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"invalid record type: 0x%d"), drrb->drr_type);
	err = zfs_error(hdl, EZFS_BADSTREAM, errbuf);
	goto out;
	}
	if ((err = zfs_setup_cmdline_props(hdl, type, name, zoned, recursive,
	stream_wantsnewfs, raw, toplevel, rcvprops, cmdprops, origprops,
	&oxprops, &wkeydata, &wkeylen, errbuf)) != 0)
	goto out;

	/*
	* When sending with properties (zfs send -p), the encryption property
	* is not included because it is a SETONCE property and therefore
	* treated as read only. However, we are always able to determine its
	* value because raw sends will include it in the DRR_BDEGIN payload
	* and non-raw sends with properties are not allowed for encrypted
	* datasets. Therefore, if this is a non-raw properties stream, we can
	* infer that the value should be ZIO_CRYPT_OFF and manually add that
	* to the received properties.
	*/
	if (stream_wantsnewfs && !raw && rcvprops != NULL &&
	!nvlist_exists(cmdprops, zfs_prop_to_name(ZFS_PROP_ENCRYPTION))) {
	if (oxprops == NULL)
	oxprops = fnvlist_alloc();
	fnvlist_add_uint64(oxprops,
	zfs_prop_to_name(ZFS_PROP_ENCRYPTION), ZIO_CRYPT_OFF);
	}

	if (flags->dryrun) {
	void *buf = zfs_alloc(hdl, SPA_MAXBLOCKSIZE);

	/*
	* We have read the DRR_BEGIN record, but we have
	* not yet read the payload. For non-dryrun sends
	* this will be done by the kernel, so we must
	* emulate that here, before attempting to read
	* more records.
	*/
	err = recv_read(hdl, infd, buf, drr->drr_payloadlen,
	flags->byteswap, NULL);
	free(buf);
	if (err != 0)
	goto out;

	err = recv_skip(hdl, infd, flags->byteswap);
	goto out;
	}

	err = ioctl_err = lzc_receive_with_cmdprops(destsnap, rcvprops,
	oxprops, wkeydata, wkeylen, origin, flags->force, flags->resumable,
	raw, infd, drr_noswap, -1, &read_bytes, &errflags,
	NULL, &prop_errors);
	ioctl_errno = ioctl_err;
	prop_errflags = errflags;

	if (err == 0) {
	nvpair_t *prop_err = NULL;

	while ((prop_err = nvlist_next_nvpair(prop_errors,
	prop_err)) != NULL) {
	char tbuf[1024];
	zfs_prop_t prop;
	int intval;

	prop = zfs_name_to_prop(nvpair_name(prop_err));
	(void) nvpair_value_int32(prop_err, &intval);
	if (strcmp(nvpair_name(prop_err),
	ZPROP_N_MORE_ERRORS) == 0) {
	trunc_prop_errs(intval);
	break;
	} else if (snapname == NULL \|\| finalsnap == NULL \|\|
	strcmp(finalsnap, snapname) == 0 \|\|
	strcmp(nvpair_name(prop_err),
	zfs_prop_to_name(ZFS_PROP_REFQUOTA)) != 0) {
	/*
	* Skip the special case of, for example,
	* "refquota", errors on intermediate
	* snapshots leading up to a final one.
	* That's why we have all of the checks above.
	*
	* See zfs_ioctl.c's extract_delay_props() for
	* a list of props which can fail on
	* intermediate snapshots, but shouldn't
	* affect the overall receive.
	*/
	(void) snprintf(tbuf, sizeof (tbuf),
	dgettext(TEXT_DOMAIN,
	"cannot receive %s property on %s"),
	nvpair_name(prop_err), name);
	zfs_setprop_error(hdl, prop, intval, tbuf);
	}
	}
	}

	if (err == 0 && snapprops_nvlist) {
	zfs_cmd_t zc = {"\0"};

	(void) strcpy(zc.zc_name, destsnap);
	zc.zc_cookie = B_TRUE; /* received */
	if (zcmd_write_src_nvlist(hdl, &zc, snapprops_nvlist) == 0) {
	(void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc);
	zcmd_free_nvlists(&zc);
	}
	}
	if (err == 0 && snapholds_nvlist) {
	nvpair_t *pair;
	nvlist_t holds, errors = NULL;
	int cleanup_fd = -1;

	VERIFY(0 == nvlist_alloc(&holds, 0, KM_SLEEP));
	for (pair = nvlist_next_nvpair(snapholds_nvlist, NULL);
	pair != NULL;
	pair = nvlist_next_nvpair(snapholds_nvlist, pair)) {
	fnvlist_add_string(holds, destsnap, nvpair_name(pair));
	}
	(void) lzc_hold(holds, cleanup_fd, &errors);
	fnvlist_free(snapholds_nvlist);
	fnvlist_free(holds);
	}

	if (err && (ioctl_errno == ENOENT \|\| ioctl_errno == EEXIST)) {
	/*
	* It may be that this snapshot already exists,
	* in which case we want to consume & ignore it
	* rather than failing.
	*/
	avl_tree_t *local_avl;
	nvlist_t local_nv, fs;
	cp = strchr(destsnap, '@');

	/*
	* XXX Do this faster by just iterating over snaps in
	* this fs. Also if zc_value does not exist, we will
	* get a strange "does not exist" error message.
	*/
	*cp = '\0';
	if (gather_nvlist(hdl, destsnap, NULL, NULL, B_FALSE, B_TRUE,
	B_FALSE, B_FALSE, B_FALSE, B_FALSE, B_FALSE, B_FALSE,
	B_TRUE, &local_nv, &local_avl) == 0) {
	*cp = '@';
	fs = fsavl_find(local_avl, drrb->drr_toguid, NULL);
	fsavl_destroy(local_avl);
	fnvlist_free(local_nv);

	if (fs != NULL) {
	if (flags->verbose) {
	(void) printf("snap %s already exists; "
	"ignoring\n", destsnap);
	}
	err = ioctl_err = recv_skip(hdl, infd,
	flags->byteswap);
	}
	}
	*cp = '@';
	}

	if (ioctl_err != 0) {
	switch (ioctl_errno) {
	case ENODEV:
	cp = strchr(destsnap, '@');
	*cp = '\0';
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"most recent snapshot of %s does not\n"
	"match incremental source"), destsnap);
	(void) zfs_error(hdl, EZFS_BADRESTORE, errbuf);
	*cp = '@';
	break;
	case ETXTBSY:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"destination %s has been modified\n"
	"since most recent snapshot"), name);
	(void) zfs_error(hdl, EZFS_BADRESTORE, errbuf);
	break;
	case EACCES:
	if (raw && stream_wantsnewfs) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"failed to create encryption key"));
	} else if (raw && !stream_wantsnewfs) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"encryption key does not match "
	"existing key"));
	} else {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"inherited key must be loaded"));
	}
	(void) zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf);
	break;
	case EEXIST:
	cp = strchr(destsnap, '@');
	if (newfs) {
	/* it's the containing fs that exists */
	*cp = '\0';
	}
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"destination already exists"));
	(void) zfs_error_fmt(hdl, EZFS_EXISTS,
	dgettext(TEXT_DOMAIN, "cannot restore to %s"),
	destsnap);
	*cp = '@';
	break;
	case EINVAL:
	if (flags->resumable) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"kernel modules must be upgraded to "
	"receive this stream."));
	} else if (embedded && !raw) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"incompatible embedded data stream "
	"feature with encrypted receive."));
	}
	(void) zfs_error(hdl, EZFS_BADSTREAM, errbuf);
	break;
	case ECKSUM:
	case ZFS_ERR_STREAM_TRUNCATED:
	recv_ecksum_set_aux(hdl, destsnap, flags->resumable,
	ioctl_err == ECKSUM);
	(void) zfs_error(hdl, EZFS_BADSTREAM, errbuf);
	break;
	case ZFS_ERR_STREAM_LARGE_BLOCK_MISMATCH:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"incremental send stream requires -L "
	"(--large-block), to match previous receive."));
	(void) zfs_error(hdl, EZFS_BADSTREAM, errbuf);
	break;
	case ENOTSUP:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"pool must be upgraded to receive this stream."));
	(void) zfs_error(hdl, EZFS_BADVERSION, errbuf);
	break;
	case EDQUOT:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"destination %s space quota exceeded."), name);
	(void) zfs_error(hdl, EZFS_NOSPC, errbuf);
	break;
	case ZFS_ERR_FROM_IVSET_GUID_MISSING:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"IV set guid missing. See errata %u at "
	"https://openzfs.github.io/openzfs-docs/msg/"
	"ZFS-8000-ER."),
	ZPOOL_ERRATA_ZOL_8308_ENCRYPTION);
	(void) zfs_error(hdl, EZFS_BADSTREAM, errbuf);
	break;
	case ZFS_ERR_FROM_IVSET_GUID_MISMATCH:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"IV set guid mismatch. See the 'zfs receive' "
	"man page section\n discussing the limitations "
	"of raw encrypted send streams."));
	(void) zfs_error(hdl, EZFS_BADSTREAM, errbuf);
	break;
	case ZFS_ERR_SPILL_BLOCK_FLAG_MISSING:
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"Spill block flag missing for raw send.\n"
	"The zfs software on the sending system must "
	"be updated."));
	(void) zfs_error(hdl, EZFS_BADSTREAM, errbuf);
	break;
	case EBUSY:
	if (hastoken) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"destination %s contains "
	"partially-complete state from "
	"\"zfs receive -s\"."), name);
	(void) zfs_error(hdl, EZFS_BUSY, errbuf);
	break;
	}
	/* fallthru */
	default:
	(void) zfs_standard_error(hdl, ioctl_errno, errbuf);
	}
	}

	/*
	* Mount the target filesystem (if created). Also mount any
	* children of the target filesystem if we did a replication
	* receive (indicated by stream_avl being non-NULL).
	*/
	if (clp) {
	if (!flags->nomount)
	err \|= changelist_postfix(clp);
	changelist_free(clp);
	}

	if ((newfs \|\| stream_avl) && type == ZFS_TYPE_FILESYSTEM && !redacted)
	flags->domount = B_TRUE;

	if (prop_errflags & ZPROP_ERR_NOCLEAR) {
	(void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Warning: "
	"failed to clear unreceived properties on %s"), name);
	(void) fprintf(stderr, "\n");
	}
	if (prop_errflags & ZPROP_ERR_NORESTORE) {
	(void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Warning: "
	"failed to restore original properties on %s"), name);
	(void) fprintf(stderr, "\n");
	}

	if (err \|\| ioctl_err) {
	err = -1;
	goto out;
	}

	if (flags->verbose) {
	char buf1[64];
	char buf2[64];
	uint64_t bytes = read_bytes;
	time_t delta = time(NULL) - begin_time;
	if (delta == 0)
	delta = 1;
	zfs_nicebytes(bytes, buf1, sizeof (buf1));
	zfs_nicebytes(bytes/delta, buf2, sizeof (buf1));

	(void) printf("received %s stream in %lld seconds (%s/sec)\n",
	buf1, (longlong_t)delta, buf2);
	}

	err = 0;
	out:
	if (prop_errors != NULL)
	fnvlist_free(prop_errors);

	if (tmp_keylocation[0] != '\0') {
	fnvlist_add_string(rcvprops,
	zfs_prop_to_name(ZFS_PROP_KEYLOCATION), tmp_keylocation);
	}

	if (newprops)
	fnvlist_free(rcvprops);

	fnvlist_free(oxprops);
	fnvlist_free(origprops);

	return (err);
	}

	/*
	* Check properties we were asked to override (both -o\|-x)
	*/
	static boolean_t
	zfs_receive_checkprops(libzfs_handle_t hdl, nvlist_t props,
	const char *errbuf)
	{
	nvpair_t *nvp;
	zfs_prop_t prop;
	const char *name;

	nvp = NULL;
	while ((nvp = nvlist_next_nvpair(props, nvp)) != NULL) {
	name = nvpair_name(nvp);
	prop = zfs_name_to_prop(name);

	if (prop == ZPROP_INVAL) {
	if (!zfs_prop_user(name)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"invalid property '%s'"), name);
	return (B_FALSE);
	}
	continue;
	}
	/*
	* "origin" is readonly but is used to receive datasets as
	* clones so we don't raise an error here
	*/
	if (prop == ZFS_PROP_ORIGIN)
	continue;

	/* encryption params have their own verification later */
	if (prop == ZFS_PROP_ENCRYPTION \|\|
	zfs_prop_encryption_key_param(prop))
	continue;

	/*
	* cannot override readonly, set-once and other specific
	* settable properties
	*/
	if (zfs_prop_readonly(prop) \|\| prop == ZFS_PROP_VERSION \|\|
	prop == ZFS_PROP_VOLSIZE) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"invalid property '%s'"), name);
	return (B_FALSE);
	}
	}

	return (B_TRUE);
	}

	static int
	zfs_receive_impl(libzfs_handle_t hdl, const char tosnap,
	const char originsnap, recvflags_t flags, int infd, const char *sendfs,
	nvlist_t stream_nv, avl_tree_t stream_avl, char **top_zfs,
	const char finalsnap, nvlist_t cmdprops)
	{
	int err;
	dmu_replay_record_t drr, drr_noswap;
	struct drr_begin *drrb = &drr.drr_u.drr_begin;
	char errbuf[1024];
	zio_cksum_t zcksum = { { 0 } };
	uint64_t featureflags;
	int hdrtype;

	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
	"cannot receive"));

	/* check cmdline props, raise an error if they cannot be received */
	if (!zfs_receive_checkprops(hdl, cmdprops, errbuf)) {
	return (zfs_error(hdl, EZFS_BADPROP, errbuf));
	}

	if (flags->isprefix &&
	!zfs_dataset_exists(hdl, tosnap, ZFS_TYPE_DATASET)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "specified fs "
	"(%s) does not exist"), tosnap);
	return (zfs_error(hdl, EZFS_NOENT, errbuf));
	}
	if (originsnap &&
	!zfs_dataset_exists(hdl, originsnap, ZFS_TYPE_DATASET)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "specified origin fs "
	"(%s) does not exist"), originsnap);
	return (zfs_error(hdl, EZFS_NOENT, errbuf));
	}

	/* read in the BEGIN record */
	if (0 != (err = recv_read(hdl, infd, &drr, sizeof (drr), B_FALSE,
	&zcksum)))
	return (err);

	if (drr.drr_type == DRR_END \|\| drr.drr_type == BSWAP_32(DRR_END)) {
	/* It's the double end record at the end of a package */
	return (ENODATA);
	}

	/* the kernel needs the non-byteswapped begin record */
	drr_noswap = drr;

	flags->byteswap = B_FALSE;
	if (drrb->drr_magic == BSWAP_64(DMU_BACKUP_MAGIC)) {
	/*
	* We computed the checksum in the wrong byteorder in
	* recv_read() above; do it again correctly.
	*/
	bzero(&zcksum, sizeof (zio_cksum_t));
	fletcher_4_incremental_byteswap(&drr, sizeof (drr), &zcksum);
	flags->byteswap = B_TRUE;

	drr.drr_type = BSWAP_32(drr.drr_type);
	drr.drr_payloadlen = BSWAP_32(drr.drr_payloadlen);
	drrb->drr_magic = BSWAP_64(drrb->drr_magic);
	drrb->drr_versioninfo = BSWAP_64(drrb->drr_versioninfo);
	drrb->drr_creation_time = BSWAP_64(drrb->drr_creation_time);
	drrb->drr_type = BSWAP_32(drrb->drr_type);
	drrb->drr_flags = BSWAP_32(drrb->drr_flags);
	drrb->drr_toguid = BSWAP_64(drrb->drr_toguid);
	drrb->drr_fromguid = BSWAP_64(drrb->drr_fromguid);
	}

	if (drrb->drr_magic != DMU_BACKUP_MAGIC \|\| drr.drr_type != DRR_BEGIN) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid "
	"stream (bad magic number)"));
	return (zfs_error(hdl, EZFS_BADSTREAM, errbuf));
	}

	featureflags = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo);
	hdrtype = DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo);

	if (!DMU_STREAM_SUPPORTED(featureflags) \|\|
	(hdrtype != DMU_SUBSTREAM && hdrtype != DMU_COMPOUNDSTREAM)) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
	"stream has unsupported feature, feature flags = %llx"),
	(unsigned long long)featureflags);
	return (zfs_error(hdl, EZFS_BADSTREAM, errbuf));
	}

	/* Holds feature is set once in the compound stream header. */
	if (featureflags & DMU_BACKUP_FEATURE_HOLDS)
	flags->holds = B_TRUE;

	if (strchr(drrb->drr_toname, '@') == NULL) {
	zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid "
	"stream (bad snapshot name)"));
	return (zfs_error(hdl, EZFS_BADSTREAM, errbuf));
	}

	if (DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) == DMU_SUBSTREAM) {
	char nonpackage_sendfs[ZFS_MAX_DATASET_NAME_LEN];
	if (sendfs == NULL) {
	/*
	* We were not called from zfs_receive_package(). Get
	* the fs specified by 'zfs send'.
	*/
	char *cp;
	(void) strlcpy(nonpackage_sendfs,
	drr.drr_u.drr_begin.drr_toname,
	sizeof (nonpackage_sendfs));
	if ((cp = strchr(nonpackage_sendfs, '@')) != NULL)
	*cp = '\0';
	sendfs = nonpackage_sendfs;
	VERIFY(finalsnap == NULL);
	}
	return (zfs_receive_one(hdl, infd, tosnap, originsnap, flags,
	&drr, &drr_noswap, sendfs, stream_nv, stream_avl, top_zfs,
	finalsnap, cmdprops));
	} else {
	assert(DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) ==
	DMU_COMPOUNDSTREAM);
	return (zfs_receive_package(hdl, infd, tosnap, flags, &drr,
	&zcksum, top_zfs, cmdprops));
	}
	}

	/*
	* Restores a backup of tosnap from the file descriptor specified by infd.
	* Return 0 on total success, -2 if some things couldn't be
	* destroyed/renamed/promoted, -1 if some things couldn't be received.
	* (-1 will override -2, if -1 and the resumable flag was specified the
	* transfer can be resumed if the sending side supports it).
	*/
	int
	zfs_receive(libzfs_handle_t hdl, const char tosnap, nvlist_t *props,
	recvflags_t flags, int infd, avl_tree_t stream_avl)
	{
	char *top_zfs = NULL;
	int err;
	struct stat sb;
	char *originsnap = NULL;

	/*
	* The only way fstat can fail is if we do not have a valid file
	* descriptor.
	*/
	if (fstat(infd, &sb) == -1) {
	perror("fstat");
	return (-2);
	}

	/*
	* It is not uncommon for gigabytes to be processed in zfs receive.
	* Speculatively increase the buffer size if supported by the platform.
	*/
	if (S_ISFIFO(sb.st_mode))
	libzfs_set_pipe_max(infd);

	if (props) {
	err = nvlist_lookup_string(props, "origin", &originsnap);
	if (err && err != ENOENT)
	return (err);
	}

	err = zfs_receive_impl(hdl, tosnap, originsnap, flags, infd, NULL, NULL,
	stream_avl, &top_zfs, NULL, props);

	if (err == 0 && !flags->nomount && flags->domount && top_zfs) {
	zfs_handle_t *zhp = NULL;
	prop_changelist_t *clp = NULL;

	zhp = zfs_open(hdl, top_zfs,
	ZFS_TYPE_FILESYSTEM \| ZFS_TYPE_VOLUME);
	if (zhp == NULL) {
	err = -1;
	goto out;
	} else {
	if (zhp->zfs_type == ZFS_TYPE_VOLUME) {
	zfs_close(zhp);
	goto out;
	}

	clp = changelist_gather(zhp, ZFS_PROP_MOUNTPOINT,
	CL_GATHER_MOUNT_ALWAYS,
	flags->forceunmount ? MS_FORCE : 0);
	zfs_close(zhp);
	if (clp == NULL) {
	err = -1;
	goto out;
	}

	/* mount and share received datasets */
	err = changelist_postfix(clp);
	changelist_free(clp);
	if (err != 0)
	err = -1;
	}
	}

	out:
	if (top_zfs)
	free(top_zfs);

	return (err);
	}
	diff --git a/sys/contrib/openzfs/lib/libzfs_core/Makefile.am b/sys/contrib/openzfs/lib/libzfs_core/Makefile.am
	index 67e554dc8706..b2101e21144d 100644
	--- a/sys/contrib/openzfs/lib/libzfs_core/Makefile.am
	+++ b/sys/contrib/openzfs/lib/libzfs_core/Makefile.am
	@@ -1,35 +1,37 @@
	include $(top_srcdir)/config/Rules.am

	pkgconfig_DATA = libzfs_core.pc

	+AM_CFLAGS += -fvisibility=hidden
	+
	lib_LTLIBRARIES = libzfs_core.la

	include $(top_srcdir)/config/Abigail.am

	USER_C = \
	libzfs_core.c

	libzfs_core_la_SOURCES = $(USER_C)

	libzfs_core_la_LIBADD = \
	$(abs_top_builddir)/lib/libzutil/libzutil.la \
	$(abs_top_builddir)/lib/libnvpair/libnvpair.la

	libzfs_core_la_LIBADD += $(LTLIBINTL)

	libzfs_core_la_LDFLAGS = -pthread

	if !ASAN_ENABLED
	libzfs_core_la_LDFLAGS += -Wl,-z,defs
	endif

	if BUILD_FREEBSD
	libzfs_core_la_LIBADD += -lutil -lgeom
	endif

	libzfs_core_la_LDFLAGS += -version-info 3:0:0

	include $(top_srcdir)/config/CppCheck.am

	# Library ABI
	EXTRA_DIST = libzfs_core.abi libzfs_core.suppr
	diff --git a/sys/contrib/openzfs/lib/libzfs_core/libzfs_core.abi b/sys/contrib/openzfs/lib/libzfs_core/libzfs_core.abi
	index 574928cba089..c54a994f79bc 100644
	--- a/sys/contrib/openzfs/lib/libzfs_core/libzfs_core.abi
	+++ b/sys/contrib/openzfs/lib/libzfs_core/libzfs_core.abi
	@@ -1,4562 +1,4522 @@
	<abi-corpus path='libzfs_core.so' architecture='elf-amd-x86_64' soname='libzfs_core.so.3'>
	<elf-needed>
	<dependency name='libatomic.so.1'/>
	<dependency name='libuuid.so.1'/>
	<dependency name='libz.so.1'/>
	<dependency name='librt.so.1'/>
	<dependency name='libm.so.6'/>
	<dependency name='libblkid.so.1'/>
	<dependency name='libudev.so.1'/>
	<dependency name='libnvpair.so.3'/>
	<dependency name='libpthread.so.0'/>
	<dependency name='libc.so.6'/>
	<dependency name='ld-linux-x86-64.so.2'/>
	</elf-needed>
	<elf-function-symbols>
	<elf-symbol name='_sol_getmntent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_16_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_32_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_64_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_8_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_char' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_char_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_int_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_long' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_long_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_ptr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_ptr_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_short' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_add_short_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_and_16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_and_16_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_and_32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_and_32_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_and_64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_and_64_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_and_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_and_8_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_and_uchar' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_and_uchar_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_and_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_and_uint_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_and_ulong' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_and_ulong_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_and_ushort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_and_ushort_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_cas_16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_cas_32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_cas_64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_cas_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_cas_ptr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_cas_uchar' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_cas_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_cas_ulong' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_cas_ushort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_clear_long_excl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_dec_16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_dec_16_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_dec_32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_dec_32_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_dec_64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_dec_64_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_dec_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_dec_8_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_dec_uchar' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_dec_uchar_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_dec_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_dec_uint_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_dec_ulong' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_dec_ulong_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_dec_ushort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_dec_ushort_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_inc_16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_inc_16_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_inc_32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_inc_32_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_inc_64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_inc_64_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_inc_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_inc_8_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_inc_uchar' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_inc_uchar_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_inc_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_inc_uint_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_inc_ulong' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_inc_ulong_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_inc_ushort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_inc_ushort_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_or_16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_or_16_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_or_32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_or_32_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_or_64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_or_64_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_or_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_or_8_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_or_uchar' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_or_uchar_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_or_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_or_uint_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_or_ulong' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_or_ulong_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_or_ushort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_or_ushort_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_set_long_excl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_16_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_32_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_64_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_8_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_char' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_char_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_int_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_long' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_long_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_ptr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_ptr_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_short' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_sub_short_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_swap_16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_swap_32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_swap_64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_swap_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_swap_ptr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_swap_uchar' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_swap_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_swap_ulong' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='atomic_swap_ushort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_destroy_nodes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_first' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_insert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_insert_here' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_is_empty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_last' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_nearest' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_numnodes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_swap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_update_gt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_update_lt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='avl_walk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='efi_alloc_and_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='efi_alloc_and_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	- <elf-symbol name='efi_auto_sense' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='efi_err_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='efi_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='efi_rescan' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='efi_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='efi_use_whole_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='efi_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='get_system_hostid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='getexecname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='getextmntent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='getmntany' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='getzoneid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
	<elf-symbol name='is_mpath_whole_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
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	- <parameter type-id='type-id-16' name='fsname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='274' column='1'/>
	- <parameter type-id='type-id-16' name='origin' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='274' column='1'/>
	- <parameter type-id='type-id-29' name='props' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='274' column='1'/>
	+ <function-decl name='lzc_clone' mangled-name='lzc_clone' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_clone'>
	+ <parameter type-id='type-id-16' name='fsname'/>
	+ <parameter type-id='type-id-16' name='origin'/>
	+ <parameter type-id='type-id-29' name='props'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='fnvlist_add_string' filepath='../../include/sys/nvpair.h' line='297' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='fnvlist_add_string' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-16'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='lzc_promote' mangled-name='lzc_promote' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='290' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_promote'>
	- <parameter type-id='type-id-16' name='fsname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='290' column='1'/>
	- <parameter type-id='type-id-37' name='snapnamebuf' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='290' column='1'/>
	- <parameter type-id='type-id-1' name='snapnamelen' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='290' column='1'/>
	+ <function-decl name='lzc_promote' mangled-name='lzc_promote' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_promote'>
	+ <parameter type-id='type-id-16' name='fsname'/>
	+ <parameter type-id='type-id-37' name='snapnamebuf'/>
	+ <parameter type-id='type-id-1' name='snapnamelen'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_rename' mangled-name='lzc_rename' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='312' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_rename'>
	- <parameter type-id='type-id-16' name='source' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='312' column='1'/>
	- <parameter type-id='type-id-16' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='312' column='1'/>
	+ <function-decl name='lzc_rename' mangled-name='lzc_rename' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_rename'>
	+ <parameter type-id='type-id-16' name='source'/>
	+ <parameter type-id='type-id-16' name='target'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_destroy' mangled-name='lzc_destroy' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='327' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_destroy'>
	- <parameter type-id='type-id-16' name='fsname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='327' column='1'/>
	+ <function-decl name='lzc_destroy' mangled-name='lzc_destroy' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_destroy'>
	+ <parameter type-id='type-id-16' name='fsname'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-29' size-in-bits='64' id='type-id-64'/>
	- <function-decl name='lzc_snapshot' mangled-name='lzc_snapshot' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='352' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_snapshot'>
	- <parameter type-id='type-id-29' name='snaps' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='352' column='1'/>
	- <parameter type-id='type-id-29' name='props' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='352' column='1'/>
	- <parameter type-id='type-id-64' name='errlist' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='352' column='1'/>
	+ <function-decl name='lzc_snapshot' mangled-name='lzc_snapshot' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_snapshot'>
	+ <parameter type-id='type-id-29' name='snaps'/>
	+ <parameter type-id='type-id-29' name='props'/>
	+ <parameter type-id='type-id-64' name='errlist'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <class-decl name='nvpair' size-in-bits='128' is-struct='yes' visibility='default' filepath='../../include/sys/nvpair.h' line='73' column='1' id='type-id-65'>
	+ <class-decl name='nvpair' size-in-bits='128' is-struct='yes' visibility='default' id='type-id-65'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='nvp_size' type-id='type-id-21' visibility='default' filepath='../../include/sys/nvpair.h' line='74' column='1'/>
	+ <var-decl name='nvp_size' type-id='type-id-21' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='32'>
	- <var-decl name='nvp_name_sz' type-id='type-id-66' visibility='default' filepath='../../include/sys/nvpair.h' line='75' column='1'/>
	+ <var-decl name='nvp_name_sz' type-id='type-id-66' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='48'>
	- <var-decl name='nvp_reserve' type-id='type-id-66' visibility='default' filepath='../../include/sys/nvpair.h' line='76' column='1'/>
	+ <var-decl name='nvp_reserve' type-id='type-id-66' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	- <var-decl name='nvp_value_elem' type-id='type-id-21' visibility='default' filepath='../../include/sys/nvpair.h' line='77' column='1'/>
	+ <var-decl name='nvp_value_elem' type-id='type-id-21' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='96'>
	- <var-decl name='nvp_type' type-id='type-id-67' visibility='default' filepath='../../include/sys/nvpair.h' line='78' column='1'/>
	+ <var-decl name='nvp_type' type-id='type-id-67' visibility='default'/>
	</data-member>
	</class-decl>
	- <typedef-decl name='__int16_t' type-id='type-id-7' filepath='/usr/include/x86_64-linux-gnu/bits/types.h' line='38' column='1' id='type-id-68'/>
	- <typedef-decl name='int16_t' type-id='type-id-68' filepath='/usr/include/x86_64-linux-gnu/bits/stdint-intn.h' line='25' column='1' id='type-id-66'/>
	- <enum-decl name='__anonymous_enum__' is-anonymous='yes' filepath='../../include/sys/nvpair.h' line='37' column='1' id='type-id-69'>
	+ <typedef-decl name='__int16_t' type-id='type-id-7' id='type-id-68'/>
	+ <typedef-decl name='int16_t' type-id='type-id-68' id='type-id-66'/>
	+ <enum-decl name='__anonymous_enum__' is-anonymous='yes' id='type-id-69'>
	<underlying-type type-id='type-id-18'/>
	<enumerator name='DATA_TYPE_DONTCARE' value='-1'/>
	<enumerator name='DATA_TYPE_UNKNOWN' value='0'/>
	<enumerator name='DATA_TYPE_BOOLEAN' value='1'/>
	<enumerator name='DATA_TYPE_BYTE' value='2'/>
	<enumerator name='DATA_TYPE_INT16' value='3'/>
	<enumerator name='DATA_TYPE_UINT16' value='4'/>
	<enumerator name='DATA_TYPE_INT32' value='5'/>
	<enumerator name='DATA_TYPE_UINT32' value='6'/>
	<enumerator name='DATA_TYPE_INT64' value='7'/>
	<enumerator name='DATA_TYPE_UINT64' value='8'/>
	<enumerator name='DATA_TYPE_STRING' value='9'/>
	<enumerator name='DATA_TYPE_BYTE_ARRAY' value='10'/>
	<enumerator name='DATA_TYPE_INT16_ARRAY' value='11'/>
	<enumerator name='DATA_TYPE_UINT16_ARRAY' value='12'/>
	<enumerator name='DATA_TYPE_INT32_ARRAY' value='13'/>
	<enumerator name='DATA_TYPE_UINT32_ARRAY' value='14'/>
	<enumerator name='DATA_TYPE_INT64_ARRAY' value='15'/>
	<enumerator name='DATA_TYPE_UINT64_ARRAY' value='16'/>
	<enumerator name='DATA_TYPE_STRING_ARRAY' value='17'/>
	<enumerator name='DATA_TYPE_HRTIME' value='18'/>
	<enumerator name='DATA_TYPE_NVLIST' value='19'/>
	<enumerator name='DATA_TYPE_NVLIST_ARRAY' value='20'/>
	<enumerator name='DATA_TYPE_BOOLEAN_VALUE' value='21'/>
	<enumerator name='DATA_TYPE_INT8' value='22'/>
	<enumerator name='DATA_TYPE_UINT8' value='23'/>
	<enumerator name='DATA_TYPE_BOOLEAN_ARRAY' value='24'/>
	<enumerator name='DATA_TYPE_INT8_ARRAY' value='25'/>
	<enumerator name='DATA_TYPE_UINT8_ARRAY' value='26'/>
	<enumerator name='DATA_TYPE_DOUBLE' value='27'/>
	</enum-decl>
	- <typedef-decl name='data_type_t' type-id='type-id-69' filepath='../../include/sys/nvpair.h' line='71' column='1' id='type-id-67'/>
	+ <typedef-decl name='data_type_t' type-id='type-id-69' id='type-id-67'/>
	<pointer-type-def type-id='type-id-65' size-in-bits='64' id='type-id-70'/>
	- <function-decl name='nvlist_next_nvpair' filepath='../../include/sys/nvpair.h' line='242' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_next_nvpair' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-70'/>
	<return type-id='type-id-70'/>
	</function-decl>
	- <function-decl name='nvpair_name' filepath='../../include/sys/nvpair.h' line='244' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_name' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-70'/>
	<return type-id='type-id-37'/>
	</function-decl>
	- <function-decl name='lzc_destroy_snaps' mangled-name='lzc_destroy_snaps' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='404' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_destroy_snaps'>
	- <parameter type-id='type-id-29' name='snaps' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='404' column='1'/>
	- <parameter type-id='type-id-41' name='defer' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='404' column='1'/>
	- <parameter type-id='type-id-64' name='errlist' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='404' column='1'/>
	+ <function-decl name='lzc_destroy_snaps' mangled-name='lzc_destroy_snaps' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_destroy_snaps'>
	+ <parameter type-id='type-id-29' name='snaps'/>
	+ <parameter type-id='type-id-41' name='defer'/>
	+ <parameter type-id='type-id-64' name='errlist'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='fnvlist_add_boolean' filepath='../../include/sys/nvpair.h' line='286' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='fnvlist_add_boolean' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<return type-id='type-id-17'/>
	</function-decl>
	<pointer-type-def type-id='type-id-23' size-in-bits='64' id='type-id-71'/>
	- <function-decl name='lzc_snaprange_space' mangled-name='lzc_snaprange_space' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='430' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_snaprange_space'>
	- <parameter type-id='type-id-16' name='firstsnap' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='430' column='1'/>
	- <parameter type-id='type-id-16' name='lastsnap' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='430' column='1'/>
	- <parameter type-id='type-id-71' name='usedp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='431' column='1'/>
	+ <function-decl name='lzc_snaprange_space' mangled-name='lzc_snaprange_space' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_snaprange_space'>
	+ <parameter type-id='type-id-16' name='firstsnap'/>
	+ <parameter type-id='type-id-16' name='lastsnap'/>
	+ <parameter type-id='type-id-71' name='usedp'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='fnvlist_free' filepath='../../include/sys/nvpair.h' line='277' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='fnvlist_free' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='lzc_exists' mangled-name='lzc_exists' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='459' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_exists'>
	- <parameter type-id='type-id-16' name='dataset' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='459' column='1'/>
	+ <function-decl name='lzc_exists' mangled-name='lzc_exists' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_exists'>
	+ <parameter type-id='type-id-16' name='dataset'/>
	<return type-id='type-id-41'/>
	</function-decl>
	- <function-decl name='lzc_sync' mangled-name='lzc_sync' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='481' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_sync'>
	- <parameter type-id='type-id-16' name='pool_name' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='481' column='1'/>
	- <parameter type-id='type-id-29' name='innvl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='481' column='1'/>
	- <parameter type-id='type-id-64' name='outnvl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='481' column='1'/>
	+ <function-decl name='lzc_sync' mangled-name='lzc_sync' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_sync'>
	+ <parameter type-id='type-id-16' name='pool_name'/>
	+ <parameter type-id='type-id-29' name='innvl'/>
	+ <parameter type-id='type-id-64' name='outnvl'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_hold' mangled-name='lzc_hold' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='514' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_hold'>
	- <parameter type-id='type-id-29' name='holds' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='514' column='1'/>
	- <parameter type-id='type-id-1' name='cleanup_fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='514' column='1'/>
	- <parameter type-id='type-id-64' name='errlist' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='514' column='1'/>
	+ <function-decl name='lzc_hold' mangled-name='lzc_hold' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_hold'>
	+ <parameter type-id='type-id-29' name='holds'/>
	+ <parameter type-id='type-id-1' name='cleanup_fd'/>
	+ <parameter type-id='type-id-64' name='errlist'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_release' mangled-name='lzc_release' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='561' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_release'>
	- <parameter type-id='type-id-29' name='holds' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='561' column='1'/>
	- <parameter type-id='type-id-64' name='errlist' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='561' column='1'/>
	+ <function-decl name='lzc_release' mangled-name='lzc_release' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_release'>
	+ <parameter type-id='type-id-29' name='holds'/>
	+ <parameter type-id='type-id-64' name='errlist'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_get_holds' mangled-name='lzc_get_holds' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='584' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_get_holds'>
	- <parameter type-id='type-id-16' name='snapname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='584' column='1'/>
	- <parameter type-id='type-id-64' name='holdsp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='584' column='1'/>
	+ <function-decl name='lzc_get_holds' mangled-name='lzc_get_holds' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_get_holds'>
	+ <parameter type-id='type-id-16' name='snapname'/>
	+ <parameter type-id='type-id-64' name='holdsp'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <enum-decl name='lzc_send_flags' filepath='../../include/libzfs_core.h' line='77' column='1' id='type-id-72'>
	+ <enum-decl name='lzc_send_flags' id='type-id-72'>
	<underlying-type type-id='type-id-18'/>
	<enumerator name='LZC_SEND_FLAG_EMBED_DATA' value='1'/>
	<enumerator name='LZC_SEND_FLAG_LARGE_BLOCK' value='2'/>
	<enumerator name='LZC_SEND_FLAG_COMPRESS' value='4'/>
	<enumerator name='LZC_SEND_FLAG_RAW' value='8'/>
	<enumerator name='LZC_SEND_FLAG_SAVED' value='16'/>
	</enum-decl>
	- <function-decl name='lzc_send' mangled-name='lzc_send' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='625' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_send'>
	- <parameter type-id='type-id-16' name='snapname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='625' column='1'/>
	- <parameter type-id='type-id-16' name='from' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='625' column='1'/>
	- <parameter type-id='type-id-1' name='fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='625' column='1'/>
	- <parameter type-id='type-id-72' name='flags' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='626' column='1'/>
	+ <function-decl name='lzc_send' mangled-name='lzc_send' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_send'>
	+ <parameter type-id='type-id-16' name='snapname'/>
	+ <parameter type-id='type-id-16' name='from'/>
	+ <parameter type-id='type-id-1' name='fd'/>
	+ <parameter type-id='type-id-72' name='flags'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_send_resume_redacted' mangled-name='lzc_send_resume_redacted' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='661' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_send_resume_redacted'>
	- <parameter type-id='type-id-16' name='snapname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='661' column='1'/>
	- <parameter type-id='type-id-16' name='from' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='661' column='1'/>
	- <parameter type-id='type-id-1' name='fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='661' column='1'/>
	- <parameter type-id='type-id-72' name='flags' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='662' column='1'/>
	- <parameter type-id='type-id-23' name='resumeobj' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='662' column='1'/>
	- <parameter type-id='type-id-23' name='resumeoff' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='662' column='1'/>
	- <parameter type-id='type-id-16' name='redactbook' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='663' column='1'/>
	+ <function-decl name='lzc_send_resume_redacted' mangled-name='lzc_send_resume_redacted' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_send_resume_redacted'>
	+ <parameter type-id='type-id-16' name='snapname'/>
	+ <parameter type-id='type-id-16' name='from'/>
	+ <parameter type-id='type-id-1' name='fd'/>
	+ <parameter type-id='type-id-72' name='flags'/>
	+ <parameter type-id='type-id-23' name='resumeobj'/>
	+ <parameter type-id='type-id-23' name='resumeoff'/>
	+ <parameter type-id='type-id-16' name='redactbook'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='fnvlist_add_uint64' filepath='../../include/sys/nvpair.h' line='296' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='fnvlist_add_uint64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-26'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='lzc_send_redacted' mangled-name='lzc_send_redacted' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='633' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_send_redacted'>
	- <parameter type-id='type-id-16' name='snapname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='633' column='1'/>
	- <parameter type-id='type-id-16' name='from' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='633' column='1'/>
	- <parameter type-id='type-id-1' name='fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='633' column='1'/>
	- <parameter type-id='type-id-72' name='flags' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='634' column='1'/>
	- <parameter type-id='type-id-16' name='redactbook' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='634' column='1'/>
	+ <function-decl name='lzc_send_redacted' mangled-name='lzc_send_redacted' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_send_redacted'>
	+ <parameter type-id='type-id-16' name='snapname'/>
	+ <parameter type-id='type-id-16' name='from'/>
	+ <parameter type-id='type-id-1' name='fd'/>
	+ <parameter type-id='type-id-72' name='flags'/>
	+ <parameter type-id='type-id-16' name='redactbook'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_send_resume' mangled-name='lzc_send_resume' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='641' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_send_resume'>
	- <parameter type-id='type-id-16' name='snapname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='641' column='1'/>
	- <parameter type-id='type-id-16' name='from' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='641' column='1'/>
	- <parameter type-id='type-id-1' name='fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='641' column='1'/>
	- <parameter type-id='type-id-72' name='flags' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='642' column='1'/>
	- <parameter type-id='type-id-23' name='resumeobj' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='642' column='1'/>
	- <parameter type-id='type-id-23' name='resumeoff' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='642' column='1'/>
	+ <function-decl name='lzc_send_resume' mangled-name='lzc_send_resume' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_send_resume'>
	+ <parameter type-id='type-id-16' name='snapname'/>
	+ <parameter type-id='type-id-16' name='from'/>
	+ <parameter type-id='type-id-1' name='fd'/>
	+ <parameter type-id='type-id-72' name='flags'/>
	+ <parameter type-id='type-id-23' name='resumeobj'/>
	+ <parameter type-id='type-id-23' name='resumeoff'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_send_space_resume_redacted' mangled-name='lzc_send_space_resume_redacted' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='711' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_send_space_resume_redacted'>
	- <parameter type-id='type-id-16' name='snapname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='711' column='1'/>
	- <parameter type-id='type-id-16' name='from' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='711' column='1'/>
	- <parameter type-id='type-id-72' name='flags' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='712' column='1'/>
	- <parameter type-id='type-id-23' name='resumeobj' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='712' column='1'/>
	- <parameter type-id='type-id-23' name='resumeoff' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='712' column='1'/>
	- <parameter type-id='type-id-23' name='resume_bytes' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='713' column='1'/>
	- <parameter type-id='type-id-16' name='redactbook' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='713' column='1'/>
	- <parameter type-id='type-id-1' name='fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='713' column='1'/>
	- <parameter type-id='type-id-71' name='spacep' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='713' column='1'/>
	+ <function-decl name='lzc_send_space_resume_redacted' mangled-name='lzc_send_space_resume_redacted' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_send_space_resume_redacted'>
	+ <parameter type-id='type-id-16' name='snapname'/>
	+ <parameter type-id='type-id-16' name='from'/>
	+ <parameter type-id='type-id-72' name='flags'/>
	+ <parameter type-id='type-id-23' name='resumeobj'/>
	+ <parameter type-id='type-id-23' name='resumeoff'/>
	+ <parameter type-id='type-id-23' name='resume_bytes'/>
	+ <parameter type-id='type-id-16' name='redactbook'/>
	+ <parameter type-id='type-id-1' name='fd'/>
	+ <parameter type-id='type-id-71' name='spacep'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_send_space' mangled-name='lzc_send_space' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='749' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_send_space'>
	- <parameter type-id='type-id-16' name='snapname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='749' column='1'/>
	- <parameter type-id='type-id-16' name='from' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='749' column='1'/>
	- <parameter type-id='type-id-72' name='flags' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='750' column='1'/>
	- <parameter type-id='type-id-71' name='spacep' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='750' column='1'/>
	+ <function-decl name='lzc_send_space' mangled-name='lzc_send_space' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_send_space'>
	+ <parameter type-id='type-id-16' name='snapname'/>
	+ <parameter type-id='type-id-16' name='from'/>
	+ <parameter type-id='type-id-72' name='flags'/>
	+ <parameter type-id='type-id-71' name='spacep'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_receive' mangled-name='lzc_receive' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='966' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_receive'>
	- <parameter type-id='type-id-16' name='snapname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='966' column='1'/>
	- <parameter type-id='type-id-29' name='props' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='966' column='1'/>
	- <parameter type-id='type-id-16' name='origin' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='966' column='1'/>
	- <parameter type-id='type-id-41' name='force' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='967' column='1'/>
	- <parameter type-id='type-id-41' name='raw' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='967' column='1'/>
	- <parameter type-id='type-id-1' name='fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='967' column='1'/>
	+ <function-decl name='lzc_receive' mangled-name='lzc_receive' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_receive'>
	+ <parameter type-id='type-id-16' name='snapname'/>
	+ <parameter type-id='type-id-29' name='props'/>
	+ <parameter type-id='type-id-16' name='origin'/>
	+ <parameter type-id='type-id-41' name='force'/>
	+ <parameter type-id='type-id-41' name='raw'/>
	+ <parameter type-id='type-id-1' name='fd'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-17' size-in-bits='64' id='type-id-73'/>
	- <function-decl name='read' filepath='/usr/include/unistd.h' line='360' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='read' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-1'/>
	<parameter type-id='type-id-73'/>
	<parameter type-id='type-id-26'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fnvlist_add_byte_array' filepath='../../include/sys/nvpair.h' line='301' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='fnvlist_add_byte_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-36'/>
	<parameter type-id='type-id-6'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='nvlist_lookup_uint64' filepath='../../include/sys/nvpair.h' line='212' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_uint64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-38'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<pointer-type-def type-id='type-id-35' size-in-bits='64' id='type-id-74'/>
	- <function-decl name='nvlist_lookup_nvlist' filepath='../../include/sys/nvpair.h' line='214' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_lookup_nvlist' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-74'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='fnvlist_dup' filepath='../../include/sys/nvpair.h' line='282' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='fnvlist_dup' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<return type-id='type-id-35'/>
	</function-decl>
	- <function-decl name='nvlist_unpack' filepath='../../include/sys/nvpair.h' line='155' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_unpack' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-37'/>
	<parameter type-id='type-id-26'/>
	<parameter type-id='type-id-74'/>
	<parameter type-id='type-id-1'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_receive_resumable' mangled-name='lzc_receive_resumable' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='980' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_receive_resumable'>
	- <parameter type-id='type-id-16' name='snapname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='966' column='1'/>
	- <parameter type-id='type-id-29' name='props' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='966' column='1'/>
	- <parameter type-id='type-id-16' name='origin' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='966' column='1'/>
	- <parameter type-id='type-id-41' name='force' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='967' column='1'/>
	- <parameter type-id='type-id-41' name='raw' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='967' column='1'/>
	- <parameter type-id='type-id-1' name='fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='967' column='1'/>
	+ <function-decl name='lzc_receive_resumable' mangled-name='lzc_receive_resumable' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_receive_resumable'>
	+ <parameter type-id='type-id-16' name='snapname'/>
	+ <parameter type-id='type-id-29' name='props'/>
	+ <parameter type-id='type-id-16' name='origin'/>
	+ <parameter type-id='type-id-41' name='force'/>
	+ <parameter type-id='type-id-41' name='raw'/>
	+ <parameter type-id='type-id-1' name='fd'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <class-decl name='dmu_replay_record' size-in-bits='2496' is-struct='yes' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='242' column='1' id='type-id-75'>
	+ <class-decl name='dmu_replay_record' size-in-bits='2496' is-struct='yes' visibility='default' id='type-id-75'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='drr_type' type-id='type-id-76' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='248' column='1'/>
	+ <var-decl name='drr_type' type-id='type-id-76' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='32'>
	- <var-decl name='drr_payloadlen' type-id='type-id-22' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='249' column='1'/>
	+ <var-decl name='drr_payloadlen' type-id='type-id-22' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	- <var-decl name='drr_u' type-id='type-id-77' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='384' column='1'/>
	+ <var-decl name='drr_u' type-id='type-id-77' visibility='default'/>
	</data-member>
	</class-decl>
	- <enum-decl name='__anonymous_enum__' is-anonymous='yes' filepath='../../include/sys/zfs_ioctl.h' line='243' column='1' id='type-id-76'>
	+ <enum-decl name='__anonymous_enum__' is-anonymous='yes' id='type-id-76'>
	<underlying-type type-id='type-id-18'/>
	<enumerator name='DRR_BEGIN' value='0'/>
	<enumerator name='DRR_OBJECT' value='1'/>
	<enumerator name='DRR_FREEOBJECTS' value='2'/>
	<enumerator name='DRR_WRITE' value='3'/>
	<enumerator name='DRR_FREE' value='4'/>
	<enumerator name='DRR_END' value='5'/>
	<enumerator name='DRR_WRITE_BYREF' value='6'/>
	<enumerator name='DRR_SPILL' value='7'/>
	<enumerator name='DRR_WRITE_EMBEDDED' value='8'/>
	<enumerator name='DRR_OBJECT_RANGE' value='9'/>
	<enumerator name='DRR_REDACT' value='10'/>
	<enumerator name='DRR_NUMTYPES' value='11'/>
	</enum-decl>
	- <union-decl name='__anonymous_union__' size-in-bits='2432' is-anonymous='yes' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='250' column='1' id='type-id-77'>
	+ <union-decl name='__anonymous_union__' size-in-bits='2432' is-anonymous='yes' visibility='default' id='type-id-77'>
	<data-member access='private'>
	- <var-decl name='drr_begin' type-id='type-id-46' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='251' column='1'/>
	+ <var-decl name='drr_begin' type-id='type-id-46' visibility='default'/>
	</data-member>
	<data-member access='private'>
	- <var-decl name='drr_end' type-id='type-id-78' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='255' column='1'/>
	+ <var-decl name='drr_end' type-id='type-id-78' visibility='default'/>
	</data-member>
	<data-member access='private'>
	- <var-decl name='drr_object' type-id='type-id-79' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='275' column='1'/>
	+ <var-decl name='drr_object' type-id='type-id-79' visibility='default'/>
	</data-member>
	<data-member access='private'>
	- <var-decl name='drr_freeobjects' type-id='type-id-80' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='280' column='1'/>
	+ <var-decl name='drr_freeobjects' type-id='type-id-80' visibility='default'/>
	</data-member>
	<data-member access='private'>
	- <var-decl name='drr_write' type-id='type-id-81' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='301' column='1'/>
	+ <var-decl name='drr_write' type-id='type-id-81' visibility='default'/>
	</data-member>
	<data-member access='private'>
	- <var-decl name='drr_free' type-id='type-id-82' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='307' column='1'/>
	+ <var-decl name='drr_free' type-id='type-id-82' visibility='default'/>
	</data-member>
	<data-member access='private'>
	- <var-decl name='drr_write_byref' type-id='type-id-83' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='323' column='1'/>
	+ <var-decl name='drr_write_byref' type-id='type-id-83' visibility='default'/>
	</data-member>
	<data-member access='private'>
	- <var-decl name='drr_spill' type-id='type-id-84' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='338' column='1'/>
	+ <var-decl name='drr_spill' type-id='type-id-84' visibility='default'/>
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	<data-member access='private'>
	- <var-decl name='drr_write_embedded' type-id='type-id-85' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='351' column='1'/>
	+ <var-decl name='drr_write_embedded' type-id='type-id-85' visibility='default'/>
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	<data-member access='private'>
	- <var-decl name='drr_object_range' type-id='type-id-86' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='361' column='1'/>
	+ <var-decl name='drr_object_range' type-id='type-id-86' visibility='default'/>
	</data-member>
	<data-member access='private'>
	- <var-decl name='drr_redact' type-id='type-id-87' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='367' column='1'/>
	+ <var-decl name='drr_redact' type-id='type-id-87' visibility='default'/>
	</data-member>
	<data-member access='private'>
	- <var-decl name='drr_checksum' type-id='type-id-88' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='383' column='1'/>
	+ <var-decl name='drr_checksum' type-id='type-id-88' visibility='default'/>
	</data-member>
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	- <class-decl name='drr_end' size-in-bits='320' is-struct='yes' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='252' column='1' id='type-id-78'>
	+ <class-decl name='drr_end' size-in-bits='320' is-struct='yes' visibility='default' id='type-id-78'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='drr_checksum' type-id='type-id-89' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='253' column='1'/>
	+ <var-decl name='drr_checksum' type-id='type-id-89' visibility='default'/>
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	<data-member access='public' layout-offset-in-bits='256'>
	- <var-decl name='drr_toguid' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='254' column='1'/>
	+ <var-decl name='drr_toguid' type-id='type-id-23' visibility='default'/>
	</data-member>
	</class-decl>
	- <class-decl name='zio_cksum' size-in-bits='256' is-struct='yes' visibility='default' filepath='../../include/sys/spa_checksum.h' line='38' column='1' id='type-id-90'>
	+ <class-decl name='zio_cksum' size-in-bits='256' is-struct='yes' visibility='default' id='type-id-90'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='zc_word' type-id='type-id-91' visibility='default' filepath='../../include/sys/spa_checksum.h' line='39' column='1'/>
	+ <var-decl name='zc_word' type-id='type-id-91' visibility='default'/>
	</data-member>
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	<subrange length='4' type-id='type-id-12' id='type-id-92'/>

	</array-type-def>
	- <typedef-decl name='zio_cksum_t' type-id='type-id-90' filepath='../../include/sys/spa_checksum.h' line='40' column='1' id='type-id-89'/>
	- <class-decl name='drr_object' size-in-bits='448' is-struct='yes' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='256' column='1' id='type-id-79'>
	+ <typedef-decl name='zio_cksum_t' type-id='type-id-90' id='type-id-89'/>
	+ <class-decl name='drr_object' size-in-bits='448' is-struct='yes' visibility='default' id='type-id-79'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='drr_object' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='257' column='1'/>
	+ <var-decl name='drr_object' type-id='type-id-23' visibility='default'/>
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	<data-member access='public' layout-offset-in-bits='64'>
	- <var-decl name='drr_type' type-id='type-id-93' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='258' column='1'/>
	+ <var-decl name='drr_type' type-id='type-id-93' visibility='default'/>
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	<data-member access='public' layout-offset-in-bits='96'>
	- <var-decl name='drr_bonustype' type-id='type-id-93' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='259' column='1'/>
	+ <var-decl name='drr_bonustype' type-id='type-id-93' visibility='default'/>
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	<data-member access='public' layout-offset-in-bits='128'>
	- <var-decl name='drr_blksz' type-id='type-id-22' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='260' column='1'/>
	+ <var-decl name='drr_blksz' type-id='type-id-22' visibility='default'/>
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	<data-member access='public' layout-offset-in-bits='160'>
	- <var-decl name='drr_bonuslen' type-id='type-id-22' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='261' column='1'/>
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	<data-member access='public' layout-offset-in-bits='192'>
	- <var-decl name='drr_checksumtype' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='262' column='1'/>
	+ <var-decl name='drr_checksumtype' type-id='type-id-32' visibility='default'/>
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	<data-member access='public' layout-offset-in-bits='200'>
	- <var-decl name='drr_compress' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='263' column='1'/>
	+ <var-decl name='drr_compress' type-id='type-id-32' visibility='default'/>
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	<data-member access='public' layout-offset-in-bits='208'>
	- <var-decl name='drr_dn_slots' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='264' column='1'/>
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	<data-member access='public' layout-offset-in-bits='216'>
	- <var-decl name='drr_flags' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='265' column='1'/>
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	- <var-decl name='drr_raw_bonuslen' type-id='type-id-22' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='266' column='1'/>
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	<data-member access='public' layout-offset-in-bits='256'>
	- <var-decl name='drr_toguid' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='267' column='1'/>
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	- <var-decl name='drr_indblkshift' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='269' column='1'/>
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	- <var-decl name='drr_nlevels' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='270' column='1'/>
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	- <var-decl name='drr_nblkptr' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='271' column='1'/>
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	- <var-decl name='drr_pad' type-id='type-id-94' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='272' column='1'/>
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	- <var-decl name='drr_maxblkid' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='273' column='1'/>
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	- <enum-decl name='dmu_object_type' filepath='../../include/sys/dmu.h' line='165' column='1' id='type-id-95'>
	+ <enum-decl name='dmu_object_type' id='type-id-95'>
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	<enumerator name='DMU_OT_BPOBJ_HDR' value='6'/>
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	<enumerator name='DMU_OT_INTENT_LOG' value='9'/>
	<enumerator name='DMU_OT_DNODE' value='10'/>
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	<enumerator name='DMU_OT_DSL_DS_SNAP_MAP' value='14'/>
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	<enumerator name='DMU_OT_DSL_DATASET' value='16'/>
	<enumerator name='DMU_OT_ZNODE' value='17'/>
	<enumerator name='DMU_OT_OLDACL' value='18'/>
	<enumerator name='DMU_OT_PLAIN_FILE_CONTENTS' value='19'/>
	<enumerator name='DMU_OT_DIRECTORY_CONTENTS' value='20'/>
	<enumerator name='DMU_OT_MASTER_NODE' value='21'/>
	<enumerator name='DMU_OT_UNLINKED_SET' value='22'/>
	<enumerator name='DMU_OT_ZVOL' value='23'/>
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	<enumerator name='DMU_OT_PLAIN_OTHER' value='25'/>
	<enumerator name='DMU_OT_UINT64_OTHER' value='26'/>
	<enumerator name='DMU_OT_ZAP_OTHER' value='27'/>
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	<enumerator name='DMU_OT_SPA_HISTORY' value='29'/>
	<enumerator name='DMU_OT_SPA_HISTORY_OFFSETS' value='30'/>
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	<enumerator name='DMU_OT_DSL_PERMS' value='32'/>
	<enumerator name='DMU_OT_ACL' value='33'/>
	<enumerator name='DMU_OT_SYSACL' value='34'/>
	<enumerator name='DMU_OT_FUID' value='35'/>
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	<enumerator name='DMU_OT_USERGROUP_USED' value='39'/>
	<enumerator name='DMU_OT_USERGROUP_QUOTA' value='40'/>
	<enumerator name='DMU_OT_USERREFS' value='41'/>
	<enumerator name='DMU_OT_DDT_ZAP' value='42'/>
	<enumerator name='DMU_OT_DDT_STATS' value='43'/>
	<enumerator name='DMU_OT_SA' value='44'/>
	<enumerator name='DMU_OT_SA_MASTER_NODE' value='45'/>
	<enumerator name='DMU_OT_SA_ATTR_REGISTRATION' value='46'/>
	<enumerator name='DMU_OT_SA_ATTR_LAYOUTS' value='47'/>
	<enumerator name='DMU_OT_SCAN_XLATE' value='48'/>
	<enumerator name='DMU_OT_DEDUP' value='49'/>
	<enumerator name='DMU_OT_DEADLIST' value='50'/>
	<enumerator name='DMU_OT_DEADLIST_HDR' value='51'/>
	<enumerator name='DMU_OT_DSL_CLONES' value='52'/>
	<enumerator name='DMU_OT_BPOBJ_SUBOBJ' value='53'/>
	<enumerator name='DMU_OT_NUMTYPES' value='54'/>
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	<enumerator name='DMU_OTN_UINT16_DATA' value='129'/>
	<enumerator name='DMU_OTN_UINT16_METADATA' value='193'/>
	<enumerator name='DMU_OTN_UINT32_DATA' value='130'/>
	<enumerator name='DMU_OTN_UINT32_METADATA' value='194'/>
	<enumerator name='DMU_OTN_UINT64_DATA' value='131'/>
	<enumerator name='DMU_OTN_UINT64_METADATA' value='195'/>
	<enumerator name='DMU_OTN_ZAP_DATA' value='132'/>
	<enumerator name='DMU_OTN_ZAP_METADATA' value='196'/>
	<enumerator name='DMU_OTN_UINT8_ENC_DATA' value='160'/>
	<enumerator name='DMU_OTN_UINT8_ENC_METADATA' value='224'/>
	<enumerator name='DMU_OTN_UINT16_ENC_DATA' value='161'/>
	<enumerator name='DMU_OTN_UINT16_ENC_METADATA' value='225'/>
	<enumerator name='DMU_OTN_UINT32_ENC_DATA' value='162'/>
	<enumerator name='DMU_OTN_UINT32_ENC_METADATA' value='226'/>
	<enumerator name='DMU_OTN_UINT64_ENC_DATA' value='163'/>
	<enumerator name='DMU_OTN_UINT64_ENC_METADATA' value='227'/>
	<enumerator name='DMU_OTN_ZAP_ENC_DATA' value='164'/>
	<enumerator name='DMU_OTN_ZAP_ENC_METADATA' value='228'/>
	</enum-decl>
	- <typedef-decl name='dmu_object_type_t' type-id='type-id-95' filepath='../../include/sys/dmu.h' line='269' column='1' id='type-id-93'/>
	+ <typedef-decl name='dmu_object_type_t' type-id='type-id-95' id='type-id-93'/>

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	</array-type-def>
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	+ <class-decl name='drr_freeobjects' size-in-bits='192' is-struct='yes' visibility='default' id='type-id-80'>
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	- <var-decl name='drr_firstobj' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='277' column='1'/>
	+ <var-decl name='drr_firstobj' type-id='type-id-23' visibility='default'/>
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	- <var-decl name='drr_numobjs' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='278' column='1'/>
	+ <var-decl name='drr_numobjs' type-id='type-id-23' visibility='default'/>
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	- <var-decl name='drr_toguid' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='279' column='1'/>
	+ <var-decl name='drr_toguid' type-id='type-id-23' visibility='default'/>
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	- <class-decl name='drr_write' size-in-bits='1088' is-struct='yes' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='281' column='1' id='type-id-81'>
	+ <class-decl name='drr_write' size-in-bits='1088' is-struct='yes' visibility='default' id='type-id-81'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='drr_object' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='282' column='1'/>
	+ <var-decl name='drr_object' type-id='type-id-23' visibility='default'/>
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	- <var-decl name='drr_type' type-id='type-id-93' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='283' column='1'/>
	+ <var-decl name='drr_type' type-id='type-id-93' visibility='default'/>
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	- <var-decl name='drr_pad' type-id='type-id-22' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='284' column='1'/>
	+ <var-decl name='drr_pad' type-id='type-id-22' visibility='default'/>
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	- <var-decl name='drr_offset' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='285' column='1'/>
	+ <var-decl name='drr_offset' type-id='type-id-23' visibility='default'/>
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	- <var-decl name='drr_logical_size' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='286' column='1'/>
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	- <var-decl name='drr_toguid' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='287' column='1'/>
	+ <var-decl name='drr_toguid' type-id='type-id-23' visibility='default'/>
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	- <var-decl name='drr_checksumtype' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='288' column='1'/>
	+ <var-decl name='drr_checksumtype' type-id='type-id-32' visibility='default'/>
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	- <var-decl name='drr_flags' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='289' column='1'/>
	+ <var-decl name='drr_flags' type-id='type-id-32' visibility='default'/>
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	- <var-decl name='drr_compressiontype' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='290' column='1'/>
	+ <var-decl name='drr_compressiontype' type-id='type-id-32' visibility='default'/>
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	- <var-decl name='drr_pad2' type-id='type-id-94' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='291' column='1'/>
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	- <var-decl name='drr_key' type-id='type-id-97' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='293' column='1'/>
	+ <var-decl name='drr_key' type-id='type-id-97' visibility='default'/>
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	- <var-decl name='drr_compressed_size' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='295' column='1'/>
	+ <var-decl name='drr_compressed_size' type-id='type-id-23' visibility='default'/>
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	- <var-decl name='drr_salt' type-id='type-id-98' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='297' column='1'/>
	+ <var-decl name='drr_salt' type-id='type-id-98' visibility='default'/>
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	- <var-decl name='drr_iv' type-id='type-id-99' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='298' column='1'/>
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	- <var-decl name='drr_mac' type-id='type-id-100' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='299' column='1'/>
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	- <class-decl name='ddt_key' size-in-bits='320' is-struct='yes' visibility='default' filepath='../../include/sys/ddt.h' line='67' column='1' id='type-id-101'>
	+ <class-decl name='ddt_key' size-in-bits='320' is-struct='yes' visibility='default' id='type-id-101'>
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	- <var-decl name='ddk_cksum' type-id='type-id-89' visibility='default' filepath='../../include/sys/ddt.h' line='68' column='1'/>
	+ <var-decl name='ddk_cksum' type-id='type-id-89' visibility='default'/>
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	- <var-decl name='ddk_prop' type-id='type-id-23' visibility='default' filepath='../../include/sys/ddt.h' line='76' column='1'/>
	+ <var-decl name='ddk_prop' type-id='type-id-23' visibility='default'/>
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	- <typedef-decl name='ddt_key_t' type-id='type-id-101' filepath='../../include/sys/ddt.h' line='77' column='1' id='type-id-97'/>
	+ <typedef-decl name='ddt_key_t' type-id='type-id-101' id='type-id-97'/>

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	</array-type-def>
	- <class-decl name='drr_free' size-in-bits='256' is-struct='yes' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='302' column='1' id='type-id-82'>
	+ <class-decl name='drr_free' size-in-bits='256' is-struct='yes' visibility='default' id='type-id-82'>
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	- <var-decl name='drr_object' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='303' column='1'/>
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	- <var-decl name='drr_offset' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='304' column='1'/>
	+ <var-decl name='drr_offset' type-id='type-id-23' visibility='default'/>
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	<data-member access='public' layout-offset-in-bits='128'>
	- <var-decl name='drr_length' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='305' column='1'/>
	+ <var-decl name='drr_length' type-id='type-id-23' visibility='default'/>
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	- <var-decl name='drr_toguid' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='306' column='1'/>
	+ <var-decl name='drr_toguid' type-id='type-id-23' visibility='default'/>
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	- <class-decl name='drr_write_byref' size-in-bits='832' is-struct='yes' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='308' column='1' id='type-id-83'>
	+ <class-decl name='drr_write_byref' size-in-bits='832' is-struct='yes' visibility='default' id='type-id-83'>
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	- <var-decl name='drr_object' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='310' column='1'/>
	+ <var-decl name='drr_object' type-id='type-id-23' visibility='default'/>
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	- <var-decl name='drr_offset' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='311' column='1'/>
	+ <var-decl name='drr_offset' type-id='type-id-23' visibility='default'/>
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	- <var-decl name='drr_length' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='312' column='1'/>
	+ <var-decl name='drr_length' type-id='type-id-23' visibility='default'/>
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	- <var-decl name='drr_toguid' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='313' column='1'/>
	+ <var-decl name='drr_toguid' type-id='type-id-23' visibility='default'/>
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	- <var-decl name='drr_refguid' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='315' column='1'/>
	+ <var-decl name='drr_refguid' type-id='type-id-23' visibility='default'/>
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	- <var-decl name='drr_refobject' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='316' column='1'/>
	+ <var-decl name='drr_refobject' type-id='type-id-23' visibility='default'/>
	</data-member>
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	- <var-decl name='drr_refoffset' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='317' column='1'/>
	+ <var-decl name='drr_refoffset' type-id='type-id-23' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='448'>
	- <var-decl name='drr_checksumtype' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='319' column='1'/>
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	</data-member>
	<data-member access='public' layout-offset-in-bits='456'>
	- <var-decl name='drr_flags' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='320' column='1'/>
	+ <var-decl name='drr_flags' type-id='type-id-32' visibility='default'/>
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	- <var-decl name='drr_pad2' type-id='type-id-105' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='321' column='1'/>
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	</data-member>
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	- <var-decl name='drr_key' type-id='type-id-97' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='322' column='1'/>
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	</array-type-def>
	- <class-decl name='drr_spill' size-in-bits='640' is-struct='yes' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='324' column='1' id='type-id-84'>
	+ <class-decl name='drr_spill' size-in-bits='640' is-struct='yes' visibility='default' id='type-id-84'>
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	- <var-decl name='drr_object' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='325' column='1'/>
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	- <var-decl name='drr_length' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='326' column='1'/>
	+ <var-decl name='drr_length' type-id='type-id-23' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	- <var-decl name='drr_toguid' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='327' column='1'/>
	+ <var-decl name='drr_toguid' type-id='type-id-23' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='192'>
	- <var-decl name='drr_flags' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='328' column='1'/>
	+ <var-decl name='drr_flags' type-id='type-id-32' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='200'>
	- <var-decl name='drr_compressiontype' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='329' column='1'/>
	+ <var-decl name='drr_compressiontype' type-id='type-id-32' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='208'>
	- <var-decl name='drr_pad' type-id='type-id-105' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='330' column='1'/>
	+ <var-decl name='drr_pad' type-id='type-id-105' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='256'>
	- <var-decl name='drr_compressed_size' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='332' column='1'/>
	+ <var-decl name='drr_compressed_size' type-id='type-id-23' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='320'>
	- <var-decl name='drr_salt' type-id='type-id-98' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='333' column='1'/>
	+ <var-decl name='drr_salt' type-id='type-id-98' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='384'>
	- <var-decl name='drr_iv' type-id='type-id-99' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='334' column='1'/>
	+ <var-decl name='drr_iv' type-id='type-id-99' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='480'>
	- <var-decl name='drr_mac' type-id='type-id-100' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='335' column='1'/>
	+ <var-decl name='drr_mac' type-id='type-id-100' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='608'>
	- <var-decl name='drr_type' type-id='type-id-93' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='336' column='1'/>
	+ <var-decl name='drr_type' type-id='type-id-93' visibility='default'/>
	</data-member>
	</class-decl>
	- <class-decl name='drr_write_embedded' size-in-bits='384' is-struct='yes' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='339' column='1' id='type-id-85'>
	+ <class-decl name='drr_write_embedded' size-in-bits='384' is-struct='yes' visibility='default' id='type-id-85'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='drr_object' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='340' column='1'/>
	+ <var-decl name='drr_object' type-id='type-id-23' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	- <var-decl name='drr_offset' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='341' column='1'/>
	+ <var-decl name='drr_offset' type-id='type-id-23' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	- <var-decl name='drr_length' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='343' column='1'/>
	+ <var-decl name='drr_length' type-id='type-id-23' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='192'>
	- <var-decl name='drr_toguid' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='344' column='1'/>
	+ <var-decl name='drr_toguid' type-id='type-id-23' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='256'>
	- <var-decl name='drr_compression' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='345' column='1'/>
	+ <var-decl name='drr_compression' type-id='type-id-32' visibility='default'/>
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	<data-member access='public' layout-offset-in-bits='264'>
	- <var-decl name='drr_etype' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='346' column='1'/>
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	<data-member access='public' layout-offset-in-bits='272'>
	- <var-decl name='drr_pad' type-id='type-id-105' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='347' column='1'/>
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	<data-member access='public' layout-offset-in-bits='320'>
	- <var-decl name='drr_lsize' type-id='type-id-22' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='348' column='1'/>
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	- <var-decl name='drr_psize' type-id='type-id-22' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='349' column='1'/>
	+ <var-decl name='drr_psize' type-id='type-id-22' visibility='default'/>
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	- <class-decl name='drr_object_range' size-in-bits='512' is-struct='yes' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='352' column='1' id='type-id-86'>
	+ <class-decl name='drr_object_range' size-in-bits='512' is-struct='yes' visibility='default' id='type-id-86'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='drr_firstobj' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='353' column='1'/>
	+ <var-decl name='drr_firstobj' type-id='type-id-23' visibility='default'/>
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	- <var-decl name='drr_numslots' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='354' column='1'/>
	+ <var-decl name='drr_numslots' type-id='type-id-23' visibility='default'/>
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	- <var-decl name='drr_toguid' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='355' column='1'/>
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	- <var-decl name='drr_salt' type-id='type-id-98' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='356' column='1'/>
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	- <var-decl name='drr_iv' type-id='type-id-99' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='357' column='1'/>
	+ <var-decl name='drr_iv' type-id='type-id-99' visibility='default'/>
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	- <var-decl name='drr_mac' type-id='type-id-100' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='358' column='1'/>
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	- <var-decl name='drr_flags' type-id='type-id-32' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='359' column='1'/>
	+ <var-decl name='drr_flags' type-id='type-id-32' visibility='default'/>
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	- <var-decl name='drr_pad' type-id='type-id-48' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='360' column='1'/>
	+ <var-decl name='drr_pad' type-id='type-id-48' visibility='default'/>
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	- <class-decl name='drr_redact' size-in-bits='256' is-struct='yes' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='362' column='1' id='type-id-87'>
	+ <class-decl name='drr_redact' size-in-bits='256' is-struct='yes' visibility='default' id='type-id-87'>
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	- <var-decl name='drr_object' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='363' column='1'/>
	+ <var-decl name='drr_object' type-id='type-id-23' visibility='default'/>
	</data-member>
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	- <var-decl name='drr_offset' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='364' column='1'/>
	+ <var-decl name='drr_offset' type-id='type-id-23' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	- <var-decl name='drr_length' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='365' column='1'/>
	+ <var-decl name='drr_length' type-id='type-id-23' visibility='default'/>
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	- <var-decl name='drr_toguid' type-id='type-id-23' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='366' column='1'/>
	+ <var-decl name='drr_toguid' type-id='type-id-23' visibility='default'/>
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	- <class-decl name='drr_checksum' size-in-bits='2432' is-struct='yes' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='376' column='1' id='type-id-88'>
	+ <class-decl name='drr_checksum' size-in-bits='2432' is-struct='yes' visibility='default' id='type-id-88'>
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	- <var-decl name='drr_pad' type-id='type-id-107' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='377' column='1'/>
	+ <var-decl name='drr_pad' type-id='type-id-107' visibility='default'/>
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	- <var-decl name='drr_checksum' type-id='type-id-89' visibility='default' filepath='../../include/sys/zfs_ioctl.h' line='382' column='1'/>
	+ <var-decl name='drr_checksum' type-id='type-id-89' visibility='default'/>
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	- <typedef-decl name='dmu_replay_record_t' type-id='type-id-75' filepath='../../include/sys/zfs_ioctl.h' line='385' column='1' id='type-id-109'/>
	+ <typedef-decl name='dmu_replay_record_t' type-id='type-id-75' id='type-id-109'/>
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	- <function-decl name='lzc_receive_with_header' mangled-name='lzc_receive_with_header' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='999' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_receive_with_header'>
	- <parameter type-id='type-id-16' name='snapname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='999' column='1'/>
	- <parameter type-id='type-id-29' name='props' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='999' column='1'/>
	- <parameter type-id='type-id-16' name='origin' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1000' column='1'/>
	- <parameter type-id='type-id-41' name='force' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1000' column='1'/>
	- <parameter type-id='type-id-41' name='resumable' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1000' column='1'/>
	- <parameter type-id='type-id-41' name='raw' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1000' column='1'/>
	- <parameter type-id='type-id-1' name='fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1001' column='1'/>
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	- <return type-id='type-id-1'/>
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	- <parameter type-id='type-id-16' name='origin' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1029' column='1'/>
	- <parameter type-id='type-id-41' name='force' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1029' column='1'/>
	- <parameter type-id='type-id-41' name='resumable' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1029' column='1'/>
	- <parameter type-id='type-id-41' name='raw' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1029' column='1'/>
	- <parameter type-id='type-id-1' name='input_fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1030' column='1'/>
	- <parameter type-id='type-id-111' name='begin_record' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1030' column='1'/>
	- <parameter type-id='type-id-1' name='cleanup_fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1030' column='1'/>
	- <parameter type-id='type-id-71' name='read_bytes' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1031' column='1'/>
	- <parameter type-id='type-id-71' name='errflags' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1031' column='1'/>
	- <parameter type-id='type-id-71' name='action_handle' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1031' column='1'/>
	- <parameter type-id='type-id-64' name='errors' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1032' column='1'/>
	- <return type-id='type-id-1'/>
	- </function-decl>
	- <function-decl name='lzc_receive_with_cmdprops' mangled-name='lzc_receive_with_cmdprops' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1047' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_receive_with_cmdprops'>
	- <parameter type-id='type-id-16' name='snapname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1047' column='1'/>
	- <parameter type-id='type-id-29' name='props' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1047' column='1'/>
	- <parameter type-id='type-id-29' name='cmdprops' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1048' column='1'/>
	- <parameter type-id='type-id-33' name='wkeydata' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1048' column='1'/>
	- <parameter type-id='type-id-34' name='wkeylen' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1048' column='1'/>
	- <parameter type-id='type-id-16' name='origin' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1048' column='1'/>
	- <parameter type-id='type-id-41' name='force' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1049' column='1'/>
	- <parameter type-id='type-id-41' name='resumable' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1049' column='1'/>
	- <parameter type-id='type-id-41' name='raw' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1049' column='1'/>
	- <parameter type-id='type-id-1' name='input_fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1049' column='1'/>
	- <parameter type-id='type-id-111' name='begin_record' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1050' column='1'/>
	- <parameter type-id='type-id-1' name='cleanup_fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1050' column='1'/>
	- <parameter type-id='type-id-71' name='read_bytes' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1051' column='1'/>
	- <parameter type-id='type-id-71' name='errflags' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1051' column='1'/>
	- <parameter type-id='type-id-71' name='action_handle' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1051' column='1'/>
	- <parameter type-id='type-id-64' name='errors' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1052' column='1'/>
	- <return type-id='type-id-1'/>
	- </function-decl>
	- <function-decl name='lzc_rollback' mangled-name='lzc_rollback' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1070' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_rollback'>
	- <parameter type-id='type-id-16' name='fsname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1070' column='1'/>
	- <parameter type-id='type-id-37' name='snapnamebuf' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1070' column='1'/>
	- <parameter type-id='type-id-1' name='snapnamelen' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1070' column='1'/>
	- <return type-id='type-id-1'/>
	- </function-decl>
	- <function-decl name='fnvlist_lookup_string' filepath='../../include/sys/nvpair.h' line='328' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='lzc_receive_with_header' mangled-name='lzc_receive_with_header' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_receive_with_header'>
	+ <parameter type-id='type-id-16' name='snapname'/>
	+ <parameter type-id='type-id-29' name='props'/>
	+ <parameter type-id='type-id-16' name='origin'/>
	+ <parameter type-id='type-id-41' name='force'/>
	+ <parameter type-id='type-id-41' name='resumable'/>
	+ <parameter type-id='type-id-41' name='raw'/>
	+ <parameter type-id='type-id-1' name='fd'/>
	+ <parameter type-id='type-id-111' name='begin_record'/>
	+ <return type-id='type-id-1'/>
	+ </function-decl>
	+ <function-decl name='lzc_receive_one' mangled-name='lzc_receive_one' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_receive_one'>
	+ <parameter type-id='type-id-16' name='snapname'/>
	+ <parameter type-id='type-id-29' name='props'/>
	+ <parameter type-id='type-id-16' name='origin'/>
	+ <parameter type-id='type-id-41' name='force'/>
	+ <parameter type-id='type-id-41' name='resumable'/>
	+ <parameter type-id='type-id-41' name='raw'/>
	+ <parameter type-id='type-id-1' name='input_fd'/>
	+ <parameter type-id='type-id-111' name='begin_record'/>
	+ <parameter type-id='type-id-1' name='cleanup_fd'/>
	+ <parameter type-id='type-id-71' name='read_bytes'/>
	+ <parameter type-id='type-id-71' name='errflags'/>
	+ <parameter type-id='type-id-71' name='action_handle'/>
	+ <parameter type-id='type-id-64' name='errors'/>
	+ <return type-id='type-id-1'/>
	+ </function-decl>
	+ <function-decl name='lzc_receive_with_cmdprops' mangled-name='lzc_receive_with_cmdprops' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_receive_with_cmdprops'>
	+ <parameter type-id='type-id-16' name='snapname'/>
	+ <parameter type-id='type-id-29' name='props'/>
	+ <parameter type-id='type-id-29' name='cmdprops'/>
	+ <parameter type-id='type-id-33' name='wkeydata'/>
	+ <parameter type-id='type-id-34' name='wkeylen'/>
	+ <parameter type-id='type-id-16' name='origin'/>
	+ <parameter type-id='type-id-41' name='force'/>
	+ <parameter type-id='type-id-41' name='resumable'/>
	+ <parameter type-id='type-id-41' name='raw'/>
	+ <parameter type-id='type-id-1' name='input_fd'/>
	+ <parameter type-id='type-id-111' name='begin_record'/>
	+ <parameter type-id='type-id-1' name='cleanup_fd'/>
	+ <parameter type-id='type-id-71' name='read_bytes'/>
	+ <parameter type-id='type-id-71' name='errflags'/>
	+ <parameter type-id='type-id-71' name='action_handle'/>
	+ <parameter type-id='type-id-64' name='errors'/>
	+ <return type-id='type-id-1'/>
	+ </function-decl>
	+ <function-decl name='lzc_rollback' mangled-name='lzc_rollback' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_rollback'>
	+ <parameter type-id='type-id-16' name='fsname'/>
	+ <parameter type-id='type-id-37' name='snapnamebuf'/>
	+ <parameter type-id='type-id-1' name='snapnamelen'/>
	+ <return type-id='type-id-1'/>
	+ </function-decl>
	+ <function-decl name='fnvlist_lookup_string' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<return type-id='type-id-37'/>
	</function-decl>
	- <function-decl name='lzc_rollback_to' mangled-name='lzc_rollback_to' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1095' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_rollback_to'>
	- <parameter type-id='type-id-16' name='fsname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1095' column='1'/>
	- <parameter type-id='type-id-16' name='snapname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1095' column='1'/>
	+ <function-decl name='lzc_rollback_to' mangled-name='lzc_rollback_to' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_rollback_to'>
	+ <parameter type-id='type-id-16' name='fsname'/>
	+ <parameter type-id='type-id-16' name='snapname'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_bookmark' mangled-name='lzc_bookmark' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_bookmark'>
	- <parameter type-id='type-id-29' name='bookmarks' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1125' column='1'/>
	- <parameter type-id='type-id-64' name='errlist' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1125' column='1'/>
	+ <function-decl name='lzc_bookmark' mangled-name='lzc_bookmark' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_bookmark'>
	+ <parameter type-id='type-id-29' name='bookmarks'/>
	+ <parameter type-id='type-id-64' name='errlist'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_get_bookmarks' mangled-name='lzc_get_bookmarks' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1180' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_get_bookmarks'>
	- <parameter type-id='type-id-16' name='pool_name' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='481' column='1'/>
	- <parameter type-id='type-id-29' name='innvl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='481' column='1'/>
	- <parameter type-id='type-id-64' name='outnvl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='481' column='1'/>
	+ <function-decl name='lzc_get_bookmarks' mangled-name='lzc_get_bookmarks' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_get_bookmarks'>
	+ <parameter type-id='type-id-16' name='pool_name'/>
	+ <parameter type-id='type-id-29' name='innvl'/>
	+ <parameter type-id='type-id-64' name='outnvl'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_get_bookmark_props' mangled-name='lzc_get_bookmark_props' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1201' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_get_bookmark_props'>
	- <parameter type-id='type-id-16' name='bookmark' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1201' column='1'/>
	- <parameter type-id='type-id-64' name='props' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1201' column='1'/>
	+ <function-decl name='lzc_get_bookmark_props' mangled-name='lzc_get_bookmark_props' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_get_bookmark_props'>
	+ <parameter type-id='type-id-16' name='bookmark'/>
	+ <parameter type-id='type-id-64' name='props'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_destroy_bookmarks' mangled-name='lzc_destroy_bookmarks' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_destroy_bookmarks'>
	- <parameter type-id='type-id-29' name='bookmarks' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1125' column='1'/>
	- <parameter type-id='type-id-64' name='errlist' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1125' column='1'/>
	+ <function-decl name='lzc_destroy_bookmarks' mangled-name='lzc_destroy_bookmarks' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_destroy_bookmarks'>
	+ <parameter type-id='type-id-29' name='bookmarks'/>
	+ <parameter type-id='type-id-64' name='errlist'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_channel_program' mangled-name='lzc_channel_program' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1300' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_channel_program'>
	- <parameter type-id='type-id-16' name='pool' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1300' column='1'/>
	- <parameter type-id='type-id-16' name='program' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1300' column='1'/>
	- <parameter type-id='type-id-23' name='instrlimit' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1300' column='1'/>
	- <parameter type-id='type-id-23' name='memlimit' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1301' column='1'/>
	- <parameter type-id='type-id-29' name='argnvl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1301' column='1'/>
	- <parameter type-id='type-id-64' name='outnvl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1301' column='1'/>
	+ <function-decl name='lzc_channel_program' mangled-name='lzc_channel_program' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_channel_program'>
	+ <parameter type-id='type-id-16' name='pool'/>
	+ <parameter type-id='type-id-16' name='program'/>
	+ <parameter type-id='type-id-23' name='instrlimit'/>
	+ <parameter type-id='type-id-23' name='memlimit'/>
	+ <parameter type-id='type-id-29' name='argnvl'/>
	+ <parameter type-id='type-id-64' name='outnvl'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='fnvlist_add_boolean_value' filepath='../../include/sys/nvpair.h' line='287' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='fnvlist_add_boolean_value' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-51'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='lzc_pool_checkpoint' mangled-name='lzc_pool_checkpoint' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1331' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_pool_checkpoint'>
	- <parameter type-id='type-id-16' name='pool' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1331' column='1'/>
	+ <function-decl name='lzc_pool_checkpoint' mangled-name='lzc_pool_checkpoint' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_pool_checkpoint'>
	+ <parameter type-id='type-id-16' name='pool'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_pool_checkpoint_discard' mangled-name='lzc_pool_checkpoint_discard' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1360' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_pool_checkpoint_discard'>
	- <parameter type-id='type-id-16' name='pool' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1331' column='1'/>
	+ <function-decl name='lzc_pool_checkpoint_discard' mangled-name='lzc_pool_checkpoint_discard' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_pool_checkpoint_discard'>
	+ <parameter type-id='type-id-16' name='pool'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_channel_program_nosync' mangled-name='lzc_channel_program_nosync' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1388' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_channel_program_nosync'>
	- <parameter type-id='type-id-16' name='pool' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1300' column='1'/>
	- <parameter type-id='type-id-16' name='program' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1300' column='1'/>
	- <parameter type-id='type-id-23' name='instrlimit' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1300' column='1'/>
	- <parameter type-id='type-id-23' name='memlimit' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1301' column='1'/>
	- <parameter type-id='type-id-29' name='argnvl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1301' column='1'/>
	- <parameter type-id='type-id-64' name='outnvl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1301' column='1'/>
	+ <function-decl name='lzc_channel_program_nosync' mangled-name='lzc_channel_program_nosync' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_channel_program_nosync'>
	+ <parameter type-id='type-id-16' name='pool'/>
	+ <parameter type-id='type-id-16' name='program'/>
	+ <parameter type-id='type-id-23' name='instrlimit'/>
	+ <parameter type-id='type-id-23' name='memlimit'/>
	+ <parameter type-id='type-id-29' name='argnvl'/>
	+ <parameter type-id='type-id-64' name='outnvl'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_load_key' mangled-name='lzc_load_key' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1403' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_load_key'>
	- <parameter type-id='type-id-16' name='fsname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1403' column='1'/>
	- <parameter type-id='type-id-41' name='noop' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1403' column='1'/>
	- <parameter type-id='type-id-33' name='wkeydata' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1403' column='1'/>
	- <parameter type-id='type-id-34' name='wkeylen' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1404' column='1'/>
	+ <function-decl name='lzc_load_key' mangled-name='lzc_load_key' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_load_key'>
	+ <parameter type-id='type-id-16' name='fsname'/>
	+ <parameter type-id='type-id-41' name='noop'/>
	+ <parameter type-id='type-id-33' name='wkeydata'/>
	+ <parameter type-id='type-id-34' name='wkeylen'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_unload_key' mangled-name='lzc_unload_key' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1427' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_unload_key'>
	- <parameter type-id='type-id-16' name='fsname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1427' column='1'/>
	+ <function-decl name='lzc_unload_key' mangled-name='lzc_unload_key' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_unload_key'>
	+ <parameter type-id='type-id-16' name='fsname'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_change_key' mangled-name='lzc_change_key' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1433' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_change_key'>
	- <parameter type-id='type-id-16' name='fsname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1433' column='1'/>
	- <parameter type-id='type-id-23' name='crypt_cmd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1433' column='1'/>
	- <parameter type-id='type-id-29' name='props' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1433' column='1'/>
	- <parameter type-id='type-id-33' name='wkeydata' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1434' column='1'/>
	- <parameter type-id='type-id-34' name='wkeylen' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1434' column='1'/>
	+ <function-decl name='lzc_change_key' mangled-name='lzc_change_key' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_change_key'>
	+ <parameter type-id='type-id-16' name='fsname'/>
	+ <parameter type-id='type-id-23' name='crypt_cmd'/>
	+ <parameter type-id='type-id-29' name='props'/>
	+ <parameter type-id='type-id-33' name='wkeydata'/>
	+ <parameter type-id='type-id-34' name='wkeylen'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_reopen' mangled-name='lzc_reopen' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1460' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_reopen'>
	- <parameter type-id='type-id-16' name='pool_name' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1460' column='1'/>
	- <parameter type-id='type-id-41' name='scrub_restart' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1460' column='1'/>
	+ <function-decl name='lzc_reopen' mangled-name='lzc_reopen' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_reopen'>
	+ <parameter type-id='type-id-16' name='pool_name'/>
	+ <parameter type-id='type-id-41' name='scrub_restart'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <enum-decl name='pool_initialize_func' filepath='../../include/sys/fs/zfs.h' line='1167' column='1' id='type-id-112'>
	+ <enum-decl name='pool_initialize_func' id='type-id-112'>
	<underlying-type type-id='type-id-18'/>
	<enumerator name='POOL_INITIALIZE_START' value='0'/>
	<enumerator name='POOL_INITIALIZE_CANCEL' value='1'/>
	<enumerator name='POOL_INITIALIZE_SUSPEND' value='2'/>
	<enumerator name='POOL_INITIALIZE_FUNCS' value='3'/>
	</enum-decl>
	- <typedef-decl name='pool_initialize_func_t' type-id='type-id-112' filepath='../../include/sys/fs/zfs.h' line='1172' column='1' id='type-id-113'/>
	- <function-decl name='lzc_initialize' mangled-name='lzc_initialize' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1495' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_initialize'>
	- <parameter type-id='type-id-16' name='poolname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1495' column='1'/>
	- <parameter type-id='type-id-113' name='cmd_type' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1495' column='1'/>
	- <parameter type-id='type-id-29' name='vdevs' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1496' column='1'/>
	- <parameter type-id='type-id-64' name='errlist' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1496' column='1'/>
	+ <typedef-decl name='pool_initialize_func_t' type-id='type-id-112' id='type-id-113'/>
	+ <function-decl name='lzc_initialize' mangled-name='lzc_initialize' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_initialize'>
	+ <parameter type-id='type-id-16' name='poolname'/>
	+ <parameter type-id='type-id-113' name='cmd_type'/>
	+ <parameter type-id='type-id-29' name='vdevs'/>
	+ <parameter type-id='type-id-64' name='errlist'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <enum-decl name='pool_trim_func' filepath='../../include/sys/fs/zfs.h' line='1177' column='1' id='type-id-114'>
	+ <enum-decl name='pool_trim_func' id='type-id-114'>
	<underlying-type type-id='type-id-18'/>
	<enumerator name='POOL_TRIM_START' value='0'/>
	<enumerator name='POOL_TRIM_CANCEL' value='1'/>
	<enumerator name='POOL_TRIM_SUSPEND' value='2'/>
	<enumerator name='POOL_TRIM_FUNCS' value='3'/>
	</enum-decl>
	- <typedef-decl name='pool_trim_func_t' type-id='type-id-114' filepath='../../include/sys/fs/zfs.h' line='1182' column='1' id='type-id-115'/>
	- <function-decl name='lzc_trim' mangled-name='lzc_trim' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1535' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_trim'>
	- <parameter type-id='type-id-16' name='poolname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1535' column='1'/>
	- <parameter type-id='type-id-115' name='cmd_type' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1535' column='1'/>
	- <parameter type-id='type-id-23' name='rate' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1535' column='1'/>
	- <parameter type-id='type-id-41' name='secure' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1536' column='1'/>
	- <parameter type-id='type-id-29' name='vdevs' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1536' column='1'/>
	- <parameter type-id='type-id-64' name='errlist' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1536' column='1'/>
	+ <typedef-decl name='pool_trim_func_t' type-id='type-id-114' id='type-id-115'/>
	+ <function-decl name='lzc_trim' mangled-name='lzc_trim' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_trim'>
	+ <parameter type-id='type-id-16' name='poolname'/>
	+ <parameter type-id='type-id-115' name='cmd_type'/>
	+ <parameter type-id='type-id-23' name='rate'/>
	+ <parameter type-id='type-id-41' name='secure'/>
	+ <parameter type-id='type-id-29' name='vdevs'/>
	+ <parameter type-id='type-id-64' name='errlist'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_redact' mangled-name='lzc_redact' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1558' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_redact'>
	- <parameter type-id='type-id-16' name='snapshot' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1558' column='1'/>
	- <parameter type-id='type-id-16' name='bookname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1558' column='1'/>
	- <parameter type-id='type-id-29' name='snapnv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1558' column='1'/>
	+ <function-decl name='lzc_redact' mangled-name='lzc_redact' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_redact'>
	+ <parameter type-id='type-id-16' name='snapshot'/>
	+ <parameter type-id='type-id-16' name='bookname'/>
	+ <parameter type-id='type-id-29' name='snapnv'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <enum-decl name='__anonymous_enum__' is-anonymous='yes' filepath='../../include/sys/fs/zfs.h' line='1427' column='1' id='type-id-116'>
	+ <enum-decl name='__anonymous_enum__' is-anonymous='yes' id='type-id-116'>
	<underlying-type type-id='type-id-18'/>
	<enumerator name='ZPOOL_WAIT_CKPT_DISCARD' value='0'/>
	<enumerator name='ZPOOL_WAIT_FREE' value='1'/>
	<enumerator name='ZPOOL_WAIT_INITIALIZE' value='2'/>
	<enumerator name='ZPOOL_WAIT_REPLACE' value='3'/>
	<enumerator name='ZPOOL_WAIT_REMOVE' value='4'/>
	<enumerator name='ZPOOL_WAIT_RESILVER' value='5'/>
	<enumerator name='ZPOOL_WAIT_SCRUB' value='6'/>
	<enumerator name='ZPOOL_WAIT_TRIM' value='7'/>
	<enumerator name='ZPOOL_WAIT_NUM_ACTIVITIES' value='8'/>
	</enum-decl>
	- <typedef-decl name='zpool_wait_activity_t' type-id='type-id-116' filepath='../../include/sys/fs/zfs.h' line='1437' column='1' id='type-id-117'/>
	+ <typedef-decl name='zpool_wait_activity_t' type-id='type-id-116' id='type-id-117'/>
	<pointer-type-def type-id='type-id-41' size-in-bits='64' id='type-id-118'/>
	- <function-decl name='lzc_wait' mangled-name='lzc_wait' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1592' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_wait'>
	- <parameter type-id='type-id-16' name='pool' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1592' column='1'/>
	- <parameter type-id='type-id-117' name='activity' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1592' column='1'/>
	- <parameter type-id='type-id-118' name='waited' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1592' column='1'/>
	+ <function-decl name='lzc_wait' mangled-name='lzc_wait' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_wait'>
	+ <parameter type-id='type-id-16' name='pool'/>
	+ <parameter type-id='type-id-117' name='activity'/>
	+ <parameter type-id='type-id-118' name='waited'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_boolean_value' filepath='../../include/sys/nvpair.h' line='318' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='fnvlist_lookup_boolean_value' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<return type-id='type-id-51'/>
	</function-decl>
	- <function-decl name='lzc_wait_tag' mangled-name='lzc_wait_tag' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1598' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_wait_tag'>
	- <parameter type-id='type-id-16' name='pool' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1598' column='1'/>
	- <parameter type-id='type-id-117' name='activity' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1598' column='1'/>
	- <parameter type-id='type-id-23' name='tag' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1598' column='1'/>
	- <parameter type-id='type-id-118' name='waited' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1599' column='1'/>
	+ <function-decl name='lzc_wait_tag' mangled-name='lzc_wait_tag' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_wait_tag'>
	+ <parameter type-id='type-id-16' name='pool'/>
	+ <parameter type-id='type-id-117' name='activity'/>
	+ <parameter type-id='type-id-23' name='tag'/>
	+ <parameter type-id='type-id-118' name='waited'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <enum-decl name='__anonymous_enum__' is-anonymous='yes' filepath='../../include/sys/fs/zfs.h' line='1439' column='1' id='type-id-119'>
	+ <enum-decl name='__anonymous_enum__' is-anonymous='yes' id='type-id-119'>
	<underlying-type type-id='type-id-18'/>
	<enumerator name='ZFS_WAIT_DELETEQ' value='0'/>
	<enumerator name='ZFS_WAIT_NUM_ACTIVITIES' value='1'/>
	</enum-decl>
	- <typedef-decl name='zfs_wait_activity_t' type-id='type-id-119' filepath='../../include/sys/fs/zfs.h' line='1442' column='1' id='type-id-120'/>
	- <function-decl name='lzc_wait_fs' mangled-name='lzc_wait_fs' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1605' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_wait_fs'>
	- <parameter type-id='type-id-16' name='fs' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1605' column='1'/>
	- <parameter type-id='type-id-120' name='activity' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1605' column='1'/>
	- <parameter type-id='type-id-118' name='waited' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1605' column='1'/>
	+ <typedef-decl name='zfs_wait_activity_t' type-id='type-id-119' id='type-id-120'/>
	+ <function-decl name='lzc_wait_fs' mangled-name='lzc_wait_fs' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_wait_fs'>
	+ <parameter type-id='type-id-16' name='fs'/>
	+ <parameter type-id='type-id-120' name='activity'/>
	+ <parameter type-id='type-id-118' name='waited'/>
	<return type-id='type-id-1'/>
	</function-decl>
	<qualified-type-def type-id='type-id-28' const='yes' id='type-id-121'/>
	<pointer-type-def type-id='type-id-121' size-in-bits='64' id='type-id-122'/>
	- <function-decl name='lzc_set_bootenv' mangled-name='lzc_set_bootenv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1628' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_set_bootenv'>
	- <parameter type-id='type-id-16' name='pool' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1628' column='1'/>
	- <parameter type-id='type-id-122' name='env' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1628' column='1'/>
	+ <function-decl name='lzc_set_bootenv' mangled-name='lzc_set_bootenv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_set_bootenv'>
	+ <parameter type-id='type-id-16' name='pool'/>
	+ <parameter type-id='type-id-122' name='env'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='lzc_get_bootenv' mangled-name='lzc_get_bootenv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='1637' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_get_bootenv'>
	- <parameter type-id='type-id-16' name='snapname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='584' column='1'/>
	- <parameter type-id='type-id-64' name='holdsp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzfs_core/libzfs_core.c' line='584' column='1'/>
	+ <function-decl name='lzc_get_bootenv' mangled-name='lzc_get_bootenv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_get_bootenv'>
	+ <parameter type-id='type-id-16' name='snapname'/>
	+ <parameter type-id='type-id-64' name='holdsp'/>
	<return type-id='type-id-1'/>
	</function-decl>
	</abi-instr>
	- <abi-instr version='1.0' address-size='64' path='zutil_device_path.c' comp-dir-path='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzutil' language='LANG_C99'>
	- <typedef-decl name='size_t' type-id='type-id-26' filepath='/usr/lib/llvm-13/lib/clang/13.0.0/include/stddef.h' line='46' column='1' id='type-id-123'/>
	- <function-decl name='zfs_resolve_shortname' mangled-name='zfs_resolve_shortname' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzutil/zutil_device_path.c' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_resolve_shortname'>
	- <parameter type-id='type-id-16' name='name' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzutil/zutil_device_path.c' line='41' column='1'/>
	- <parameter type-id='type-id-37' name='path' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzutil/zutil_device_path.c' line='41' column='1'/>
	- <parameter type-id='type-id-123' name='len' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzutil/zutil_device_path.c' line='41' column='1'/>
	+ <abi-instr version='1.0' address-size='64' path='zutil_device_path.c' comp-dir-path='/home/nabijaczleweli/store/code/zfs/lib/libzutil' language='LANG_C99'>
	+ <function-decl name='zfs_basename' mangled-name='zfs_basename' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_basename'>
	+ <parameter type-id='type-id-16' name='path'/>
	+ <return type-id='type-id-16'/>
	+ </function-decl>
	+ <typedef-decl name='__ssize_t' type-id='type-id-5' id='type-id-123'/>
	+ <typedef-decl name='ssize_t' type-id='type-id-123' id='type-id-124'/>
	+ <function-decl name='zfs_dirnamelen' mangled-name='zfs_dirnamelen' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_dirnamelen'>
	+ <parameter type-id='type-id-16' name='path'/>
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	- <var-decl name='avl_child' type-id='type-id-186' visibility='default' filepath='../../include/sys/avl_impl.h' line='91' column='1'/>
	+ <var-decl name='avl_child' type-id='type-id-186' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	- <var-decl name='avl_pcb' type-id='type-id-187' visibility='default' filepath='../../include/sys/avl_impl.h' line='92' column='1'/>
	+ <var-decl name='avl_pcb' type-id='type-id-187' visibility='default'/>
	</data-member>
	</class-decl>
	<pointer-type-def type-id='type-id-185' size-in-bits='64' id='type-id-182'/>

	<array-type-def dimensions='1' type-id='type-id-182' size-in-bits='128' id='type-id-186'>
	<subrange length='2' type-id='type-id-12' id='type-id-62'/>

	</array-type-def>
	- <typedef-decl name='uintptr_t' type-id='type-id-26' filepath='/usr/include/stdint.h' line='90' column='1' id='type-id-187'/>
	+ <typedef-decl name='uintptr_t' type-id='type-id-26' id='type-id-187'/>
	<pointer-type-def type-id='type-id-188' size-in-bits='64' id='type-id-183'/>
	- <typedef-decl name='ulong_t' type-id='type-id-26' filepath='../../lib/libspl/include/sys/stdtypes.h' line='34' column='1' id='type-id-184'/>
	+ <typedef-decl name='ulong_t' type-id='type-id-26' id='type-id-184'/>
	<pointer-type-def type-id='type-id-181' size-in-bits='64' id='type-id-189'/>
	- <function-decl name='avl_create' filepath='../../include/sys/avl.h' line='163' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <pointer-type-def type-id='type-id-189' size-in-bits='64' id='type-id-190'/>
	+ <function-decl name='zpool_find_import_blkid' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-180'/>
	+ <parameter type-id='type-id-14'/>
	+ <parameter type-id='type-id-190'/>
	+ <return type-id='type-id-1'/>
	+ </function-decl>
	+ <function-decl name='avl_create' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-189'/>
	<parameter type-id='type-id-183'/>
	<parameter type-id='type-id-26'/>
	<parameter type-id='type-id-26'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='dirname' filepath='/usr/include/libgen.h' line='26' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='dirname' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-37'/>
	<return type-id='type-id-37'/>
	</function-decl>
	- <function-decl name='realpath' filepath='/usr/include/stdlib.h' line='797' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='realpath' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-37'/>
	<return type-id='type-id-37'/>
	</function-decl>
	- <function-decl name='avl_destroy_nodes' filepath='../../include/sys/avl.h' line='309' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-189'/>
	- <parameter type-id='type-id-143'/>
	- <return type-id='type-id-73'/>
	- </function-decl>
	- <function-decl name='pthread_mutex_destroy' filepath='/usr/include/pthread.h' line='755' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-14'/>
	- <return type-id='type-id-1'/>
	- </function-decl>
	- <pointer-type-def type-id='type-id-126' size-in-bits='64' id='type-id-190'/>
	- <pointer-type-def type-id='type-id-189' size-in-bits='64' id='type-id-191'/>
	- <function-decl name='zpool_find_import_blkid' filepath='./zutil_import.h' line='53' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-190'/>
	+ <function-decl name='pthread_mutex_destroy' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-14'/>
	- <parameter type-id='type-id-191'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_empty' filepath='../../include/sys/nvpair.h' line='239' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-35'/>
	- <return type-id='type-id-51'/>
	- </function-decl>
	- <function-decl name='geteuid' filepath='/usr/include/unistd.h' line='678' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <return type-id='type-id-6'/>
	- </function-decl>
	- <function-decl name='nvlist_alloc' filepath='../../include/sys/nvpair.h' line='151' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_alloc' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-74'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-1'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='fnvpair_value_nvlist' filepath='../../include/sys/nvpair.h' line='352' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='fnvpair_value_nvlist' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-70'/>
	<return type-id='type-id-35'/>
	</function-decl>
	- <function-decl name='fnvlist_lookup_nvlist' filepath='../../include/sys/nvpair.h' line='329' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='fnvlist_lookup_nvlist' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<return type-id='type-id-35'/>
	</function-decl>
	- <function-decl name='nvlist_add_string' filepath='../../include/sys/nvpair.h' line='179' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_string' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-16'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_nvlist' filepath='../../include/sys/nvpair.h' line='180' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_nvlist' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-35'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='zpool_find_config' mangled-name='zpool_find_config' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzutil/zutil_import.c' line='1685' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_find_config'>
	- <parameter type-id='type-id-73' name='hdl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzutil/zutil_import.c' line='1685' column='1'/>
	- <parameter type-id='type-id-16' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzutil/zutil_import.c' line='1685' column='1'/>
	- <parameter type-id='type-id-64' name='configp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzutil/zutil_import.c' line='1685' column='1'/>
	- <parameter type-id='type-id-176' name='args' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzutil/zutil_import.c' line='1686' column='1'/>
	- <parameter type-id='type-id-128' name='pco' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzutil/zutil_import.c' line='1686' column='1'/>
	+ <function-decl name='avl_destroy_nodes' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-189'/>
	+ <parameter type-id='type-id-130'/>
	+ <return type-id='type-id-73'/>
	+ </function-decl>
	+ <function-decl name='nvlist_empty' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-35'/>
	+ <return type-id='type-id-51'/>
	+ </function-decl>
	+ <function-decl name='geteuid' visibility='default' binding='global' size-in-bits='64'>
	+ <return type-id='type-id-6'/>
	+ </function-decl>
	+ <function-decl name='zpool_find_config' mangled-name='zpool_find_config' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_find_config'>
	+ <parameter type-id='type-id-73' name='hdl'/>
	+ <parameter type-id='type-id-16' name='target'/>
	+ <parameter type-id='type-id-64' name='configp'/>
	+ <parameter type-id='type-id-161' name='args'/>
	+ <parameter type-id='type-id-172' name='pco'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvpair_value_nvlist' filepath='../../include/sys/nvpair.h' line='258' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvpair_value_nvlist' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-70'/>
	<parameter type-id='type-id-74'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='sysconf' filepath='/usr/include/unistd.h' line='619' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='sysconf' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-1'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <class-decl name='tpool' size-in-bits='2496' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-192'/>
	- <pointer-type-def type-id='type-id-192' size-in-bits='64' id='type-id-193'/>
	- <function-decl name='tpool_create' filepath='../../include/thread_pool.h' line='42' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <class-decl name='tpool' size-in-bits='2496' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-191'/>
	+ <pointer-type-def type-id='type-id-191' size-in-bits='64' id='type-id-192'/>
	+ <function-decl name='tpool_create' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-6'/>
	<parameter type-id='type-id-6'/>
	- <parameter type-id='type-id-159'/>
	- <return type-id='type-id-193'/>
	+ <parameter type-id='type-id-145'/>
	+ <return type-id='type-id-192'/>
	</function-decl>
	- <function-decl name='avl_first' filepath='../../include/sys/avl.h' line='205' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='avl_first' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-189'/>
	<return type-id='type-id-73'/>
	</function-decl>
	- <pointer-type-def type-id='type-id-194' size-in-bits='64' id='type-id-195'/>
	- <function-decl name='tpool_dispatch' filepath='../../include/thread_pool.h' line='44' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-193'/>
	- <parameter type-id='type-id-195'/>
	+ <pointer-type-def type-id='type-id-193' size-in-bits='64' id='type-id-194'/>
	+ <function-decl name='tpool_dispatch' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-192'/>
	+ <parameter type-id='type-id-194'/>
	<parameter type-id='type-id-73'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='avl_walk' filepath='../../include/sys/avl_impl.h' line='158' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='avl_walk' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-189'/>
	<parameter type-id='type-id-73'/>
	<parameter type-id='type-id-1'/>
	<return type-id='type-id-73'/>
	</function-decl>
	- <function-decl name='tpool_wait' filepath='../../include/thread_pool.h' line='48' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-193'/>
	+ <function-decl name='tpool_wait' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-192'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='tpool_destroy' filepath='../../include/thread_pool.h' line='46' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-193'/>
	+ <function-decl name='tpool_destroy' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-192'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='avl_destroy' filepath='../../include/sys/avl.h' line='317' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='avl_destroy' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-189'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='nvlist_remove' filepath='../../include/sys/nvpair.h' line='198' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_remove' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-69'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint64' filepath='../../include/sys/nvpair.h' line='178' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_uint64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-26'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <pointer-type-def type-id='type-id-38' size-in-bits='64' id='type-id-196'/>
	- <function-decl name='nvlist_lookup_uint64_array' filepath='../../include/sys/nvpair.h' line='225' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <pointer-type-def type-id='type-id-38' size-in-bits='64' id='type-id-195'/>
	+ <function-decl name='nvlist_lookup_uint64_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	- <parameter type-id='type-id-196'/>
	- <parameter type-id='type-id-173'/>
	+ <parameter type-id='type-id-195'/>
	+ <parameter type-id='type-id-158'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_uint64_array' filepath='../../include/sys/nvpair.h' line='190' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_uint64_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-38'/>
	<parameter type-id='type-id-6'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_dup' filepath='../../include/sys/nvpair.h' line='156' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_dup' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-74'/>
	<parameter type-id='type-id-1'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='nvlist_add_nvlist_array' filepath='../../include/sys/nvpair.h' line='192' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_add_nvlist_array' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-74'/>
	<parameter type-id='type-id-6'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <class-decl name='__dirstream' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-197'/>
	- <pointer-type-def type-id='type-id-197' size-in-bits='64' id='type-id-198'/>
	- <function-decl name='opendir' filepath='/usr/include/dirent.h' line='134' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <class-decl name='__dirstream' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-196'/>
	+ <pointer-type-def type-id='type-id-196' size-in-bits='64' id='type-id-197'/>
	+ <function-decl name='opendir' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-16'/>
	- <return type-id='type-id-198'/>
	+ <return type-id='type-id-197'/>
	</function-decl>
	- <class-decl name='dirent64' size-in-bits='2240' is-struct='yes' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/dirent.h' line='37' column='1' id='type-id-199'>
	+ <class-decl name='dirent64' size-in-bits='2240' is-struct='yes' visibility='default' id='type-id-198'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='d_ino' type-id='type-id-200' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/dirent.h' line='39' column='1'/>
	+ <var-decl name='d_ino' type-id='type-id-199' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	- <var-decl name='d_off' type-id='type-id-149' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/dirent.h' line='40' column='1'/>
	+ <var-decl name='d_off' type-id='type-id-135' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	- <var-decl name='d_reclen' type-id='type-id-201' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/dirent.h' line='41' column='1'/>
	+ <var-decl name='d_reclen' type-id='type-id-200' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='144'>
	- <var-decl name='d_type' type-id='type-id-30' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/dirent.h' line='42' column='1'/>
	+ <var-decl name='d_type' type-id='type-id-30' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='152'>
	- <var-decl name='d_name' type-id='type-id-43' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/dirent.h' line='43' column='1'/>
	+ <var-decl name='d_name' type-id='type-id-43' visibility='default'/>
	</data-member>
	</class-decl>
	- <typedef-decl name='__ino64_t' type-id='type-id-26' filepath='/usr/include/x86_64-linux-gnu/bits/types.h' line='147' column='1' id='type-id-200'/>
	- <type-decl name='unsigned short int' size-in-bits='16' id='type-id-201'/>
	- <pointer-type-def type-id='type-id-199' size-in-bits='64' id='type-id-202'/>
	- <function-decl name='readdir64' filepath='/usr/include/dirent.h' line='173' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-198'/>
	- <return type-id='type-id-202'/>
	+ <typedef-decl name='__ino64_t' type-id='type-id-26' id='type-id-199'/>
	+ <type-decl name='unsigned short int' size-in-bits='16' id='type-id-200'/>
	+ <pointer-type-def type-id='type-id-198' size-in-bits='64' id='type-id-201'/>
	+ <function-decl name='readdir64' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-197'/>
	+ <return type-id='type-id-201'/>
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	- <function-decl name='closedir' filepath='/usr/include/dirent.h' line='149' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-198'/>
	+ <function-decl name='closedir' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-197'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='asprintf' filepath='/usr/include/stdio.h' line='372' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-171'/>
	+ <function-decl name='asprintf' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-126'/>
	<parameter type-id='type-id-16'/>
	<parameter is-variadic='yes'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='avl_find' filepath='../../include/sys/avl.h' line='175' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='avl_find' visibility='default' binding='global' size-in-bits='64'>
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	<parameter type-id='type-id-73'/>
	<parameter type-id='type-id-38'/>
	<return type-id='type-id-73'/>
	</function-decl>
	- <function-decl name='avl_insert' filepath='../../include/sys/avl.h' line='183' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='avl_insert' visibility='default' binding='global' size-in-bits='64'>
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	<parameter type-id='type-id-73'/>
	<parameter type-id='type-id-26'/>
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	+ <abi-instr version='1.0' address-size='64' path='zutil_nicenum.c' comp-dir-path='/home/nabijaczleweli/store/code/zfs/lib/libzutil' language='LANG_C99'>
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	<enumerator name='ZFS_NICENUM_RAWTIME' value='4'/>
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	<return type-id='type-id-17'/>
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	+ <function-decl name='zfs_nicetime' mangled-name='zfs_nicetime' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_nicetime'>
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	+ <function-decl name='zfs_niceraw' mangled-name='zfs_niceraw' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_niceraw'>
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	<return type-id='type-id-17'/>
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	+ <function-decl name='zfs_nicebytes' mangled-name='zfs_nicebytes' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_nicebytes'>
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	+ <abi-instr version='1.0' address-size='64' path='zutil_pool.c' comp-dir-path='/home/nabijaczleweli/store/code/zfs/lib/libzutil' language='LANG_C99'>
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	+ <var-decl name='dds_ref_dsize' type-id='type-id-23' visibility='default'/>
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	- <var-decl name='ddh_stat' type-id='type-id-209' visibility='default' filepath='../../include/sys/fs/zfs.h' line='1206' column='1'/>
	+ <var-decl name='ddh_stat' type-id='type-id-208' visibility='default'/>
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	- <array-type-def dimensions='1' type-id='type-id-205' size-in-bits='32768' id='type-id-209'>
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	+ <array-type-def dimensions='1' type-id='type-id-204' size-in-bits='32768' id='type-id-208'>
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	</array-type-def>
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	+ <function-decl name='zpool_dump_ddt' mangled-name='zpool_dump_ddt' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_dump_ddt'>
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	+ <parameter type-id='type-id-212' name='ddh'/>
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	</function-decl>
	- <function-decl name='zfs_nicenum' filepath='../../include/libzutil.h' line='135' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='zfs_nicenum' visibility='default' binding='global' size-in-bits='64'>
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	- <function-decl name='zfs_nicebytes' filepath='../../include/libzutil.h' line='134' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='zfs_nicebytes' visibility='default' binding='global' size-in-bits='64'>
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	- <parameter type-id='type-id-215' name='numrecords' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzutil/zutil_pool.c' line='106' column='1'/>
	+ <pointer-type-def type-id='type-id-64' size-in-bits='64' id='type-id-213'/>
	+ <pointer-type-def type-id='type-id-34' size-in-bits='64' id='type-id-214'/>
	+ <function-decl name='zpool_history_unpack' mangled-name='zpool_history_unpack' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_history_unpack'>
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	+ <parameter type-id='type-id-23' name='bytes_read'/>
	+ <parameter type-id='type-id-71' name='leftover'/>
	+ <parameter type-id='type-id-213' name='records'/>
	+ <parameter type-id='type-id-214' name='numrecords'/>
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	- <function-decl name='zfs_append_partition' mangled-name='zfs_append_partition' filepath='os/linux/zutil_device_path_os.c' line='47' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_append_partition'>
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	- <parameter type-id='type-id-123' name='max_len' filepath='os/linux/zutil_device_path_os.c' line='47' column='1'/>
	+ <abi-instr version='1.0' address-size='64' path='os/linux/zutil_device_path_os.c' comp-dir-path='/home/nabijaczleweli/store/code/zfs/lib/libzutil' language='LANG_C99'>
	+ <function-decl name='zfs_append_partition' mangled-name='zfs_append_partition' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_append_partition'>
	+ <parameter type-id='type-id-37' name='path'/>
	+ <parameter type-id='type-id-125' name='max_len'/>
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	</function-decl>
	- <function-decl name='zfs_strip_partition' mangled-name='zfs_strip_partition' filepath='os/linux/zutil_device_path_os.c' line='84' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_strip_partition'>
	- <parameter type-id='type-id-37' name='path' filepath='os/linux/zutil_device_path_os.c' line='84' column='1'/>
	+ <function-decl name='zfs_strip_partition' mangled-name='zfs_strip_partition' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_strip_partition'>
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	+ <function-decl name='zfs_strip_path' mangled-name='zfs_strip_path' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_strip_path'>
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	- <function-decl name='zfs_get_enclosure_sysfs_path' mangled-name='zfs_get_enclosure_sysfs_path' filepath='os/linux/zutil_device_path_os.c' line='171' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_get_enclosure_sysfs_path'>
	- <parameter type-id='type-id-16' name='dev_name' filepath='os/linux/zutil_device_path_os.c' line='171' column='1'/>
	+ <function-decl name='zfs_get_enclosure_sysfs_path' mangled-name='zfs_get_enclosure_sysfs_path' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_get_enclosure_sysfs_path'>
	+ <parameter type-id='type-id-16' name='dev_name'/>
	<return type-id='type-id-37'/>
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	- <var-decl name='d_ino' type-id='type-id-200' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/dirent.h' line='28' column='1'/>
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	- <var-decl name='d_off' type-id='type-id-149' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/dirent.h' line='29' column='1'/>
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	- <var-decl name='d_type' type-id='type-id-30' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/dirent.h' line='32' column='1'/>
	+ <var-decl name='d_type' type-id='type-id-30' visibility='default'/>
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	- <var-decl name='d_name' type-id='type-id-43' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/dirent.h' line='33' column='1'/>
	+ <var-decl name='d_name' type-id='type-id-43' visibility='default'/>
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	</class-decl>
	- <pointer-type-def type-id='type-id-216' size-in-bits='64' id='type-id-217'/>
	- <function-decl name='readdir' mangled-name='readdir64' filepath='/usr/include/dirent.h' line='165' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-198'/>
	- <return type-id='type-id-217'/>
	+ <pointer-type-def type-id='type-id-215' size-in-bits='64' id='type-id-216'/>
	+ <function-decl name='readdir' mangled-name='readdir64' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-197'/>
	+ <return type-id='type-id-216'/>
	</function-decl>
	- <function-decl name='readlink' filepath='/usr/include/unistd.h' line='808' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='readlink' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-37'/>
	<parameter type-id='type-id-26'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='zfs_dev_is_dm' mangled-name='zfs_dev_is_dm' filepath='os/linux/zutil_device_path_os.c' line='367' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_dev_is_dm'>
	- <parameter type-id='type-id-16' name='dev_name' filepath='os/linux/zutil_device_path_os.c' line='367' column='1'/>
	+ <function-decl name='zfs_dev_is_dm' mangled-name='zfs_dev_is_dm' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_dev_is_dm'>
	+ <parameter type-id='type-id-16' name='dev_name'/>
	<return type-id='type-id-41'/>
	</function-decl>
	- <function-decl name='zfs_dev_is_whole_disk' mangled-name='zfs_dev_is_whole_disk' filepath='os/linux/zutil_device_path_os.c' line='388' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_dev_is_whole_disk'>
	- <parameter type-id='type-id-16' name='dev_name' filepath='os/linux/zutil_device_path_os.c' line='388' column='1'/>
	+ <function-decl name='zfs_dev_is_whole_disk' mangled-name='zfs_dev_is_whole_disk' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_dev_is_whole_disk'>
	+ <parameter type-id='type-id-16' name='dev_name'/>
	<return type-id='type-id-41'/>
	</function-decl>
	- <class-decl name='dk_gpt' size-in-bits='1920' is-struct='yes' visibility='default' filepath='../../include/sys/efi_partition.h' line='316' column='1' id='type-id-218'>
	+ <class-decl name='dk_gpt' size-in-bits='1920' is-struct='yes' visibility='default' id='type-id-217'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='efi_version' type-id='type-id-34' visibility='default' filepath='../../include/sys/efi_partition.h' line='317' column='1'/>
	+ <var-decl name='efi_version' type-id='type-id-34' visibility='default'/>
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	- <var-decl name='efi_nparts' type-id='type-id-34' visibility='default' filepath='../../include/sys/efi_partition.h' line='318' column='1'/>
	+ <var-decl name='efi_nparts' type-id='type-id-34' visibility='default'/>
	</data-member>
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	- <var-decl name='efi_part_size' type-id='type-id-34' visibility='default' filepath='../../include/sys/efi_partition.h' line='319' column='1'/>
	+ <var-decl name='efi_part_size' type-id='type-id-34' visibility='default'/>
	</data-member>
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	- <var-decl name='efi_lbasize' type-id='type-id-34' visibility='default' filepath='../../include/sys/efi_partition.h' line='321' column='1'/>
	+ <var-decl name='efi_lbasize' type-id='type-id-34' visibility='default'/>
	</data-member>
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	- <var-decl name='efi_last_lba' type-id='type-id-219' visibility='default' filepath='../../include/sys/efi_partition.h' line='322' column='1'/>
	+ <var-decl name='efi_last_lba' type-id='type-id-218' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='192'>
	- <var-decl name='efi_first_u_lba' type-id='type-id-219' visibility='default' filepath='../../include/sys/efi_partition.h' line='323' column='1'/>
	+ <var-decl name='efi_first_u_lba' type-id='type-id-218' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='256'>
	- <var-decl name='efi_last_u_lba' type-id='type-id-219' visibility='default' filepath='../../include/sys/efi_partition.h' line='324' column='1'/>
	+ <var-decl name='efi_last_u_lba' type-id='type-id-218' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='320'>
	- <var-decl name='efi_disk_uguid' type-id='type-id-220' visibility='default' filepath='../../include/sys/efi_partition.h' line='325' column='1'/>
	+ <var-decl name='efi_disk_uguid' type-id='type-id-219' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='448'>
	- <var-decl name='efi_flags' type-id='type-id-34' visibility='default' filepath='../../include/sys/efi_partition.h' line='326' column='1'/>
	+ <var-decl name='efi_flags' type-id='type-id-34' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='480'>
	- <var-decl name='efi_reserved1' type-id='type-id-34' visibility='default' filepath='../../include/sys/efi_partition.h' line='327' column='1'/>
	+ <var-decl name='efi_reserved1' type-id='type-id-34' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='512'>
	- <var-decl name='efi_altern_lba' type-id='type-id-219' visibility='default' filepath='../../include/sys/efi_partition.h' line='328' column='1'/>
	+ <var-decl name='efi_altern_lba' type-id='type-id-218' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='576'>
	- <var-decl name='efi_reserved' type-id='type-id-221' visibility='default' filepath='../../include/sys/efi_partition.h' line='329' column='1'/>
	+ <var-decl name='efi_reserved' type-id='type-id-220' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='960'>
	- <var-decl name='efi_parts' type-id='type-id-222' visibility='default' filepath='../../include/sys/efi_partition.h' line='330' column='1'/>
	+ <var-decl name='efi_parts' type-id='type-id-221' visibility='default'/>
	</data-member>
	</class-decl>
	- <type-decl name='long long int' size-in-bits='64' id='type-id-223'/>
	- <typedef-decl name='longlong_t' type-id='type-id-223' filepath='../../lib/libspl/include/sys/stdtypes.h' line='36' column='1' id='type-id-224'/>
	- <typedef-decl name='diskaddr_t' type-id='type-id-224' filepath='../../lib/libspl/include/sys/stdtypes.h' line='41' column='1' id='type-id-219'/>
	- <class-decl name='uuid' size-in-bits='128' is-struct='yes' visibility='default' filepath='../../include/sys/uuid.h' line='68' column='1' id='type-id-220'>
	+ <type-decl name='long long int' size-in-bits='64' id='type-id-222'/>
	+ <typedef-decl name='longlong_t' type-id='type-id-222' id='type-id-223'/>
	+ <typedef-decl name='diskaddr_t' type-id='type-id-223' id='type-id-218'/>
	+ <class-decl name='uuid' size-in-bits='128' is-struct='yes' visibility='default' id='type-id-219'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='time_low' type-id='type-id-22' visibility='default' filepath='../../include/sys/uuid.h' line='69' column='1'/>
	+ <var-decl name='time_low' type-id='type-id-22' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='32'>
	- <var-decl name='time_mid' type-id='type-id-225' visibility='default' filepath='../../include/sys/uuid.h' line='70' column='1'/>
	+ <var-decl name='time_mid' type-id='type-id-224' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='48'>
	- <var-decl name='time_hi_and_version' type-id='type-id-225' visibility='default' filepath='../../include/sys/uuid.h' line='71' column='1'/>
	+ <var-decl name='time_hi_and_version' type-id='type-id-224' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	- <var-decl name='clock_seq_hi_and_reserved' type-id='type-id-32' visibility='default' filepath='../../include/sys/uuid.h' line='72' column='1'/>
	+ <var-decl name='clock_seq_hi_and_reserved' type-id='type-id-32' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='72'>
	- <var-decl name='clock_seq_low' type-id='type-id-32' visibility='default' filepath='../../include/sys/uuid.h' line='73' column='1'/>
	+ <var-decl name='clock_seq_low' type-id='type-id-32' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='80'>
	- <var-decl name='node_addr' type-id='type-id-105' visibility='default' filepath='../../include/sys/uuid.h' line='74' column='1'/>
	+ <var-decl name='node_addr' type-id='type-id-105' visibility='default'/>
	</data-member>
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	- <typedef-decl name='__uint16_t' type-id='type-id-201' filepath='/usr/include/x86_64-linux-gnu/bits/types.h' line='39' column='1' id='type-id-226'/>
	- <typedef-decl name='uint16_t' type-id='type-id-226' filepath='/usr/include/x86_64-linux-gnu/bits/stdint-uintn.h' line='25' column='1' id='type-id-225'/>
	+ <typedef-decl name='__uint16_t' type-id='type-id-200' id='type-id-225'/>
	+ <typedef-decl name='uint16_t' type-id='type-id-225' id='type-id-224'/>

	- <array-type-def dimensions='1' type-id='type-id-34' size-in-bits='384' id='type-id-221'>
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	</array-type-def>
	- <class-decl name='dk_part' size-in-bits='960' is-struct='yes' visibility='default' filepath='../../include/sys/efi_partition.h' line='301' column='1' id='type-id-227'>
	+ <class-decl name='dk_part' size-in-bits='960' is-struct='yes' visibility='default' id='type-id-226'>
	<data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='p_start' type-id='type-id-219' visibility='default' filepath='../../include/sys/efi_partition.h' line='302' column='1'/>
	+ <var-decl name='p_start' type-id='type-id-218' visibility='default'/>
	</data-member>
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	- <var-decl name='p_size' type-id='type-id-219' visibility='default' filepath='../../include/sys/efi_partition.h' line='303' column='1'/>
	+ <var-decl name='p_size' type-id='type-id-218' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	- <var-decl name='p_guid' type-id='type-id-220' visibility='default' filepath='../../include/sys/efi_partition.h' line='304' column='1'/>
	+ <var-decl name='p_guid' type-id='type-id-219' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='256'>
	- <var-decl name='p_tag' type-id='type-id-228' visibility='default' filepath='../../include/sys/efi_partition.h' line='305' column='1'/>
	+ <var-decl name='p_tag' type-id='type-id-227' visibility='default'/>
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	- <var-decl name='p_flag' type-id='type-id-228' visibility='default' filepath='../../include/sys/efi_partition.h' line='306' column='1'/>
	+ <var-decl name='p_flag' type-id='type-id-227' visibility='default'/>
	</data-member>
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	- <var-decl name='p_name' type-id='type-id-229' visibility='default' filepath='../../include/sys/efi_partition.h' line='307' column='1'/>
	+ <var-decl name='p_name' type-id='type-id-228' visibility='default'/>
	</data-member>
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	- <var-decl name='p_uguid' type-id='type-id-220' visibility='default' filepath='../../include/sys/efi_partition.h' line='308' column='1'/>
	+ <var-decl name='p_uguid' type-id='type-id-219' visibility='default'/>
	</data-member>
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	- <var-decl name='p_resv' type-id='type-id-230' visibility='default' filepath='../../include/sys/efi_partition.h' line='309' column='1'/>
	+ <var-decl name='p_resv' type-id='type-id-229' visibility='default'/>
	</data-member>
	</class-decl>
	- <typedef-decl name='ushort_t' type-id='type-id-201' filepath='../../lib/libspl/include/sys/stdtypes.h' line='32' column='1' id='type-id-228'/>
	+ <typedef-decl name='ushort_t' type-id='type-id-200' id='type-id-227'/>

	- <array-type-def dimensions='1' type-id='type-id-11' size-in-bits='288' id='type-id-229'>
	- <subrange length='36' type-id='type-id-12' id='type-id-231'/>
	+ <array-type-def dimensions='1' type-id='type-id-11' size-in-bits='288' id='type-id-228'>
	+ <subrange length='36' type-id='type-id-12' id='type-id-230'/>

	</array-type-def>

	- <array-type-def dimensions='1' type-id='type-id-34' size-in-bits='256' id='type-id-230'>
	+ <array-type-def dimensions='1' type-id='type-id-34' size-in-bits='256' id='type-id-229'>
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	</array-type-def>

	- <array-type-def dimensions='1' type-id='type-id-227' size-in-bits='960' id='type-id-222'>
	- <subrange length='1' type-id='type-id-12' id='type-id-232'/>
	+ <array-type-def dimensions='1' type-id='type-id-226' size-in-bits='960' id='type-id-221'>
	+ <subrange length='1' type-id='type-id-12' id='type-id-231'/>

	</array-type-def>
	- <pointer-type-def type-id='type-id-218' size-in-bits='64' id='type-id-233'/>
	- <pointer-type-def type-id='type-id-233' size-in-bits='64' id='type-id-234'/>
	- <function-decl name='efi_alloc_and_init' filepath='../../include/sys/efi_partition.h' line='366' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <pointer-type-def type-id='type-id-217' size-in-bits='64' id='type-id-232'/>
	+ <pointer-type-def type-id='type-id-232' size-in-bits='64' id='type-id-233'/>
	+ <function-decl name='efi_alloc_and_init' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-1'/>
	<parameter type-id='type-id-6'/>
	- <parameter type-id='type-id-234'/>
	+ <parameter type-id='type-id-233'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='efi_free' mangled-name='efi_free' filepath='../../include/sys/efi_partition.h' line='370' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_free'>
	- <parameter type-id='type-id-233'/>
	+ <function-decl name='efi_free' mangled-name='efi_free' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_free'>
	+ <parameter type-id='type-id-232'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='zfs_get_underlying_path' mangled-name='zfs_get_underlying_path' filepath='os/linux/zutil_device_path_os.c' line='448' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_get_underlying_path'>
	- <parameter type-id='type-id-16' name='dev_name' filepath='os/linux/zutil_device_path_os.c' line='448' column='1'/>
	+ <function-decl name='zfs_get_underlying_path' mangled-name='zfs_get_underlying_path' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_get_underlying_path'>
	+ <parameter type-id='type-id-16' name='dev_name'/>
	<return type-id='type-id-37'/>
	</function-decl>
	- <function-decl name='is_mpath_whole_disk' mangled-name='is_mpath_whole_disk' filepath='os/linux/zutil_device_path_os.c' line='502' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='is_mpath_whole_disk'>
	- <parameter type-id='type-id-16' name='path' filepath='os/linux/zutil_device_path_os.c' line='502' column='1'/>
	+ <function-decl name='is_mpath_whole_disk' mangled-name='is_mpath_whole_disk' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='is_mpath_whole_disk'>
	+ <parameter type-id='type-id-16' name='path'/>
	<return type-id='type-id-41'/>
	</function-decl>
	- <class-decl name='udev' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-235'/>
	- <pointer-type-def type-id='type-id-235' size-in-bits='64' id='type-id-236'/>
	- <function-decl name='udev_new' filepath='/usr/include/libudev.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <return type-id='type-id-236'/>
	+ <class-decl name='udev' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-234'/>
	+ <pointer-type-def type-id='type-id-234' size-in-bits='64' id='type-id-235'/>
	+ <function-decl name='udev_new' visibility='default' binding='global' size-in-bits='64'>
	+ <return type-id='type-id-235'/>
	</function-decl>
	- <class-decl name='udev_device' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-237'/>
	- <pointer-type-def type-id='type-id-237' size-in-bits='64' id='type-id-238'/>
	- <function-decl name='udev_device_new_from_subsystem_sysname' filepath='/usr/include/libudev.h' line='66' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-236'/>
	+ <class-decl name='udev_device' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-236'/>
	+ <pointer-type-def type-id='type-id-236' size-in-bits='64' id='type-id-237'/>
	+ <function-decl name='udev_device_new_from_subsystem_sysname' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-235'/>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-16'/>
	- <return type-id='type-id-238'/>
	+ <return type-id='type-id-237'/>
	</function-decl>
	- <function-decl name='udev_device_get_property_value' filepath='/usr/include/libudev.h' line='86' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-238'/>
	+ <function-decl name='udev_device_get_property_value' visibility='default' binding='global' size-in-bits='64'>
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	- <parameter type-id='type-id-238'/>
	- <return type-id='type-id-238'/>
	+ <function-decl name='udev_device_unref' visibility='default' binding='global' size-in-bits='64'>
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	+ <function-decl name='zfs_dev_flush' mangled-name='zfs_dev_flush' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_dev_flush'>
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	- <function-decl name='zpool_read_label' filepath='../../include/libzutil.h' line='79' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='zpool_read_label' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-1'/>
	<parameter type-id='type-id-74'/>
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	+ <parameter type-id='type-id-129'/>
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	+ <function-decl name='label_paths' visibility='default' binding='global' size-in-bits='64'>
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	<parameter type-id='type-id-35'/>
	- <parameter type-id='type-id-171'/>
	- <parameter type-id='type-id-171'/>
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	- <parameter type-id='type-id-1' name='timeout_ms' filepath='os/linux/zutil_import_os.c' line='606' column='1'/>
	+ <function-decl name='zpool_label_disk_wait' mangled-name='zpool_label_disk_wait' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_label_disk_wait'>
	+ <parameter type-id='type-id-16' name='path'/>
	+ <parameter type-id='type-id-1' name='timeout_ms'/>
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	<parameter type-id='type-id-26'/>
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	- <var-decl name='tv_sec' type-id='type-id-240' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h' line='11' column='1'/>
	+ <var-decl name='tv_sec' type-id='type-id-239' visibility='default'/>
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	+ <var-decl name='tv_nsec' type-id='type-id-240' visibility='default'/>
	</data-member>
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	- <typedef-decl name='__time_t' type-id='type-id-5' filepath='/usr/include/x86_64-linux-gnu/bits/types.h' line='158' column='1' id='type-id-240'/>
	- <typedef-decl name='__syscall_slong_t' type-id='type-id-5' filepath='/usr/include/x86_64-linux-gnu/bits/types.h' line='194' column='1' id='type-id-241'/>
	- <pointer-type-def type-id='type-id-239' size-in-bits='64' id='type-id-242'/>
	- <function-decl name='clock_gettime' filepath='/usr/include/time.h' line='219' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <typedef-decl name='__time_t' type-id='type-id-5' id='type-id-239'/>
	+ <typedef-decl name='__syscall_slong_t' type-id='type-id-5' id='type-id-240'/>
	+ <pointer-type-def type-id='type-id-238' size-in-bits='64' id='type-id-241'/>
	+ <function-decl name='clock_gettime' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-1'/>
	- <parameter type-id='type-id-242'/>
	+ <parameter type-id='type-id-241'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='usleep' filepath='/usr/include/unistd.h' line='460' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='usleep' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-6'/>
	<return type-id='type-id-1'/>
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	- <class-decl name='udev_list_entry' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-243'/>
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	- <function-decl name='udev_device_get_devlinks_list_entry' filepath='/usr/include/libudev.h' line='82' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-238'/>
	- <return type-id='type-id-244'/>
	- </function-decl>
	- <function-decl name='udev_list_entry_get_next' filepath='/usr/include/libudev.h' line='39' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-244'/>
	- <return type-id='type-id-244'/>
	+ <class-decl name='udev_list_entry' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-242'/>
	+ <pointer-type-def type-id='type-id-242' size-in-bits='64' id='type-id-243'/>
	+ <function-decl name='udev_device_get_devlinks_list_entry' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-237'/>
	+ <return type-id='type-id-243'/>
	</function-decl>
	- <function-decl name='udev_list_entry_get_name' filepath='/usr/include/libudev.h' line='41' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-244'/>
	+ <function-decl name='udev_list_entry_get_name' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-243'/>
	<return type-id='type-id-16'/>
	</function-decl>
	- <function-decl name='udev_unref' filepath='/usr/include/libudev.h' line='22' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-236'/>
	- <return type-id='type-id-236'/>
	+ <function-decl name='udev_list_entry_get_next' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-243'/>
	+ <return type-id='type-id-243'/>
	</function-decl>
	- <pointer-type-def type-id='type-id-123' size-in-bits='64' id='type-id-245'/>
	- <function-decl name='zpool_default_search_paths' mangled-name='zpool_default_search_paths' filepath='os/linux/zutil_import_os.c' line='272' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_default_search_paths'>
	- <parameter type-id='type-id-245' name='count' filepath='os/linux/zutil_import_os.c' line='272' column='1'/>
	- <return type-id='type-id-125'/>
	+ <function-decl name='udev_unref' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-235'/>
	+ <return type-id='type-id-235'/>
	</function-decl>
	- <typedef-decl name='pthread_mutex_t' type-id='type-id-2' filepath='/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h' line='72' column='1' id='type-id-246'/>
	- <pointer-type-def type-id='type-id-246' size-in-bits='64' id='type-id-247'/>
	- <typedef-decl name='avl_tree_t' type-id='type-id-181' filepath='../../include/sys/avl.h' line='119' column='1' id='type-id-248'/>
	- <pointer-type-def type-id='type-id-248' size-in-bits='64' id='type-id-249'/>
	- <pointer-type-def type-id='type-id-249' size-in-bits='64' id='type-id-250'/>
	- <function-decl name='zpool_find_import_blkid' mangled-name='zpool_find_import_blkid' filepath='os/linux/zutil_import_os.c' line='321' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_find_import_blkid'>
	- <parameter type-id='type-id-141' name='hdl' filepath='os/linux/zutil_import_os.c' line='321' column='1'/>
	- <parameter type-id='type-id-247' name='lock' filepath='os/linux/zutil_import_os.c' line='321' column='1'/>
	- <parameter type-id='type-id-250' name='slice_cache' filepath='os/linux/zutil_import_os.c' line='322' column='1'/>
	- <return type-id='type-id-1'/>
	+ <pointer-type-def type-id='type-id-125' size-in-bits='64' id='type-id-244'/>
	+ <function-decl name='zpool_default_search_paths' mangled-name='zpool_default_search_paths' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_default_search_paths'>
	+ <parameter type-id='type-id-244' name='count'/>
	+ <return type-id='type-id-128'/>
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	- <class-decl name='blkid_struct_cache' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-251'/>
	- <pointer-type-def type-id='type-id-251' size-in-bits='64' id='type-id-252'/>
	- <pointer-type-def type-id='type-id-252' size-in-bits='64' id='type-id-253'/>
	- <function-decl name='blkid_get_cache' filepath='/usr/include/blkid/blkid.h' line='143' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-253'/>
	+ <class-decl name='blkid_struct_cache' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-245'/>
	+ <pointer-type-def type-id='type-id-245' size-in-bits='64' id='type-id-246'/>
	+ <pointer-type-def type-id='type-id-246' size-in-bits='64' id='type-id-247'/>
	+ <function-decl name='blkid_get_cache' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-247'/>
	<parameter type-id='type-id-16'/>
	<return type-id='type-id-1'/>
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	- <function-decl name='blkid_probe_all_new' filepath='/usr/include/blkid/blkid.h' line='165' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-252'/>
	+ <function-decl name='blkid_probe_all_new' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-246'/>
	<return type-id='type-id-1'/>
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	- <class-decl name='blkid_struct_dev_iterate' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-254'/>
	- <pointer-type-def type-id='type-id-254' size-in-bits='64' id='type-id-255'/>
	- <function-decl name='blkid_dev_iterate_begin' filepath='/usr/include/blkid/blkid.h' line='150' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-252'/>
	- <return type-id='type-id-255'/>
	+ <class-decl name='blkid_struct_dev_iterate' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-248'/>
	+ <pointer-type-def type-id='type-id-248' size-in-bits='64' id='type-id-249'/>
	+ <function-decl name='blkid_dev_iterate_begin' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-246'/>
	+ <return type-id='type-id-249'/>
	</function-decl>
	- <function-decl name='blkid_dev_set_search' filepath='/usr/include/blkid/blkid.h' line='151' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-255'/>
	+ <function-decl name='blkid_dev_set_search' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-249'/>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-16'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='blkid_dev_iterate_end' filepath='/usr/include/blkid/blkid.h' line='154' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-255'/>
	+ <function-decl name='blkid_dev_iterate_end' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-249'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <class-decl name='blkid_struct_dev' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-256'/>
	- <pointer-type-def type-id='type-id-256' size-in-bits='64' id='type-id-257'/>
	- <pointer-type-def type-id='type-id-257' size-in-bits='64' id='type-id-258'/>
	- <function-decl name='blkid_dev_next' filepath='/usr/include/blkid/blkid.h' line='153' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-255'/>
	- <parameter type-id='type-id-258'/>
	+ <class-decl name='blkid_struct_dev' is-struct='yes' visibility='default' is-declaration-only='yes' id='type-id-250'/>
	+ <pointer-type-def type-id='type-id-250' size-in-bits='64' id='type-id-251'/>
	+ <pointer-type-def type-id='type-id-251' size-in-bits='64' id='type-id-252'/>
	+ <function-decl name='blkid_dev_next' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-249'/>
	+ <parameter type-id='type-id-252'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='blkid_put_cache' filepath='/usr/include/blkid/blkid.h' line='142' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-252'/>
	+ <function-decl name='blkid_put_cache' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-246'/>
	<return type-id='type-id-17'/>
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	- <function-decl name='blkid_dev_devname' filepath='/usr/include/blkid/blkid.h' line='147' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-257'/>
	+ <function-decl name='blkid_dev_devname' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-251'/>
	<return type-id='type-id-16'/>
	</function-decl>
	- <function-decl name='zfs_device_get_devid' mangled-name='zfs_device_get_devid' filepath='os/linux/zutil_import_os.c' line='410' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_device_get_devid'>
	- <parameter type-id='type-id-238' name='dev' filepath='os/linux/zutil_import_os.c' line='410' column='1'/>
	- <parameter type-id='type-id-37' name='bufptr' filepath='os/linux/zutil_import_os.c' line='410' column='1'/>
	- <parameter type-id='type-id-123' name='buflen' filepath='os/linux/zutil_import_os.c' line='410' column='1'/>
	+ <function-decl name='zfs_device_get_devid' mangled-name='zfs_device_get_devid' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_device_get_devid'>
	+ <parameter type-id='type-id-237' name='dev'/>
	+ <parameter type-id='type-id-37' name='bufptr'/>
	+ <parameter type-id='type-id-125' name='buflen'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='udev_device_get_parent_with_subsystem_devtype' filepath='/usr/include/libudev.h' line='71' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-238'/>
	+ <function-decl name='udev_device_get_parent_with_subsystem_devtype' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-237'/>
	<parameter type-id='type-id-16'/>
	<parameter type-id='type-id-16'/>
	- <return type-id='type-id-238'/>
	+ <return type-id='type-id-237'/>
	</function-decl>
	- <function-decl name='zfs_device_get_physical' mangled-name='zfs_device_get_physical' filepath='os/linux/zutil_import_os.c' line='487' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_device_get_physical'>
	- <parameter type-id='type-id-238' name='dev' filepath='os/linux/zutil_import_os.c' line='487' column='1'/>
	- <parameter type-id='type-id-37' name='bufptr' filepath='os/linux/zutil_import_os.c' line='487' column='1'/>
	- <parameter type-id='type-id-123' name='buflen' filepath='os/linux/zutil_import_os.c' line='487' column='1'/>
	+ <function-decl name='zfs_device_get_physical' mangled-name='zfs_device_get_physical' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_device_get_physical'>
	+ <parameter type-id='type-id-237' name='dev'/>
	+ <parameter type-id='type-id-37' name='bufptr'/>
	+ <parameter type-id='type-id-125' name='buflen'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='update_vdev_config_dev_strs' mangled-name='update_vdev_config_dev_strs' filepath='os/linux/zutil_import_os.c' line='800' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='update_vdev_config_dev_strs'>
	- <parameter type-id='type-id-29' name='nv' filepath='os/linux/zutil_import_os.c' line='800' column='1'/>
	+ <function-decl name='update_vdev_config_dev_strs' mangled-name='update_vdev_config_dev_strs' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='update_vdev_config_dev_strs'>
	+ <parameter type-id='type-id-29' name='nv'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='nvlist_remove_all' filepath='../../include/sys/nvpair.h' line='199' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='nvlist_remove_all' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-35'/>
	<parameter type-id='type-id-16'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='sched_yield' filepath='/usr/include/sched.h' line='68' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='sched_yield' visibility='default' binding='global' size-in-bits='64'>
	<return type-id='type-id-1'/>
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	- <abi-instr version='1.0' address-size='64' path='os/linux/zutil_compat.c' comp-dir-path='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libzutil' language='LANG_C99'>
	- <typedef-decl name='zfs_cmd_t' type-id='type-id-39' filepath='../../include/sys/zfs_ioctl.h' line='518' column='1' id='type-id-259'/>
	- <pointer-type-def type-id='type-id-259' size-in-bits='64' id='type-id-260'/>
	- <function-decl name='zfs_ioctl_fd' mangled-name='zfs_ioctl_fd' filepath='os/linux/zutil_compat.c' line='27' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_ioctl_fd'>
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	- <function-decl name='atomic_inc_ushort' mangled-name='atomic_inc_ushort' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_ushort'>
	- <parameter type-id='type-id-312' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='42' column='1'/>
	+ <qualified-type-def type-id='type-id-227' volatile='yes' id='type-id-308'/>
	+ <pointer-type-def type-id='type-id-308' size-in-bits='64' id='type-id-309'/>
	+ <function-decl name='atomic_inc_ushort' mangled-name='atomic_inc_ushort' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_ushort'>
	+ <parameter type-id='type-id-309' name='target'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <qualified-type-def type-id='type-id-22' volatile='yes' id='type-id-313'/>
	- <pointer-type-def type-id='type-id-313' size-in-bits='64' id='type-id-314'/>
	- <function-decl name='atomic_inc_32' mangled-name='atomic_inc_32' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_32'>
	- <parameter type-id='type-id-314' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='43' column='1'/>
	+ <qualified-type-def type-id='type-id-22' volatile='yes' id='type-id-310'/>
	+ <pointer-type-def type-id='type-id-310' size-in-bits='64' id='type-id-311'/>
	+ <function-decl name='atomic_inc_32' mangled-name='atomic_inc_32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_32'>
	+ <parameter type-id='type-id-311' name='target'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <qualified-type-def type-id='type-id-34' volatile='yes' id='type-id-315'/>
	- <pointer-type-def type-id='type-id-315' size-in-bits='64' id='type-id-316'/>
	- <function-decl name='atomic_inc_uint' mangled-name='atomic_inc_uint' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_uint'>
	- <parameter type-id='type-id-316' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='44' column='1'/>
	+ <qualified-type-def type-id='type-id-34' volatile='yes' id='type-id-312'/>
	+ <pointer-type-def type-id='type-id-312' size-in-bits='64' id='type-id-313'/>
	+ <function-decl name='atomic_inc_uint' mangled-name='atomic_inc_uint' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_uint'>
	+ <parameter type-id='type-id-313' name='target'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <qualified-type-def type-id='type-id-184' volatile='yes' id='type-id-317'/>
	- <pointer-type-def type-id='type-id-317' size-in-bits='64' id='type-id-318'/>
	- <function-decl name='atomic_inc_ulong' mangled-name='atomic_inc_ulong' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_ulong'>
	- <parameter type-id='type-id-318' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='45' column='1'/>
	+ <qualified-type-def type-id='type-id-184' volatile='yes' id='type-id-314'/>
	+ <pointer-type-def type-id='type-id-314' size-in-bits='64' id='type-id-315'/>
	+ <function-decl name='atomic_inc_ulong' mangled-name='atomic_inc_ulong' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_ulong'>
	+ <parameter type-id='type-id-315' name='target'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <qualified-type-def type-id='type-id-23' volatile='yes' id='type-id-319'/>
	- <pointer-type-def type-id='type-id-319' size-in-bits='64' id='type-id-320'/>
	- <function-decl name='atomic_inc_64' mangled-name='atomic_inc_64' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_64'>
	- <parameter type-id='type-id-320' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='46' column='1'/>
	+ <qualified-type-def type-id='type-id-23' volatile='yes' id='type-id-316'/>
	+ <pointer-type-def type-id='type-id-316' size-in-bits='64' id='type-id-317'/>
	+ <function-decl name='atomic_inc_64' mangled-name='atomic_inc_64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_64'>
	+ <parameter type-id='type-id-317' name='target'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_dec_8' mangled-name='atomic_dec_8' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='55' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_8'>
	- <parameter type-id='type-id-305' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='39' column='1'/>
	+ <function-decl name='atomic_dec_8' mangled-name='atomic_dec_8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_8'>
	+ <parameter type-id='type-id-302' name='target'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_dec_uchar' mangled-name='atomic_dec_uchar' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_uchar'>
	- <parameter type-id='type-id-308' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='40' column='1'/>
	+ <function-decl name='atomic_dec_uchar' mangled-name='atomic_dec_uchar' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_uchar'>
	+ <parameter type-id='type-id-305' name='target'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_dec_16' mangled-name='atomic_dec_16' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_16'>
	- <parameter type-id='type-id-310' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='41' column='1'/>
	+ <function-decl name='atomic_dec_16' mangled-name='atomic_dec_16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_16'>
	+ <parameter type-id='type-id-307' name='target'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_dec_ushort' mangled-name='atomic_dec_ushort' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='58' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_ushort'>
	- <parameter type-id='type-id-312' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='42' column='1'/>
	+ <function-decl name='atomic_dec_ushort' mangled-name='atomic_dec_ushort' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_ushort'>
	+ <parameter type-id='type-id-309' name='target'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_dec_32' mangled-name='atomic_dec_32' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_32'>
	- <parameter type-id='type-id-314' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='43' column='1'/>
	+ <function-decl name='atomic_dec_32' mangled-name='atomic_dec_32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_32'>
	+ <parameter type-id='type-id-311' name='target'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_dec_uint' mangled-name='atomic_dec_uint' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_uint'>
	- <parameter type-id='type-id-316' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='44' column='1'/>
	+ <function-decl name='atomic_dec_uint' mangled-name='atomic_dec_uint' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_uint'>
	+ <parameter type-id='type-id-313' name='target'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_dec_ulong' mangled-name='atomic_dec_ulong' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='61' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_ulong'>
	- <parameter type-id='type-id-318' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='45' column='1'/>
	+ <function-decl name='atomic_dec_ulong' mangled-name='atomic_dec_ulong' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_ulong'>
	+ <parameter type-id='type-id-315' name='target'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_dec_64' mangled-name='atomic_dec_64' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='62' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_64'>
	- <parameter type-id='type-id-320' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='46' column='1'/>
	+ <function-decl name='atomic_dec_64' mangled-name='atomic_dec_64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_64'>
	+ <parameter type-id='type-id-317' name='target'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <type-decl name='signed char' size-in-bits='8' id='type-id-321'/>
	- <typedef-decl name='__int8_t' type-id='type-id-321' filepath='/usr/include/x86_64-linux-gnu/bits/types.h' line='36' column='1' id='type-id-322'/>
	- <typedef-decl name='int8_t' type-id='type-id-322' filepath='/usr/include/x86_64-linux-gnu/bits/stdint-intn.h' line='24' column='1' id='type-id-323'/>
	- <function-decl name='atomic_add_8' mangled-name='atomic_add_8' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='71' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_8'>
	- <parameter type-id='type-id-305' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='71' column='1'/>
	- <parameter type-id='type-id-323' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='71' column='1'/>
	+ <type-decl name='signed char' size-in-bits='8' id='type-id-318'/>
	+ <typedef-decl name='__int8_t' type-id='type-id-318' id='type-id-319'/>
	+ <typedef-decl name='int8_t' type-id='type-id-319' id='type-id-320'/>
	+ <function-decl name='atomic_add_8' mangled-name='atomic_add_8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_8'>
	+ <parameter type-id='type-id-302' name='target'/>
	+ <parameter type-id='type-id-320' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_add_char' mangled-name='atomic_add_char' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='72' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_char'>
	- <parameter type-id='type-id-308' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='72' column='1'/>
	- <parameter type-id='type-id-321' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='72' column='1'/>
	+ <function-decl name='atomic_add_char' mangled-name='atomic_add_char' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_char'>
	+ <parameter type-id='type-id-305' name='target'/>
	+ <parameter type-id='type-id-318' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_add_16' mangled-name='atomic_add_16' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='73' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_16'>
	- <parameter type-id='type-id-310' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='73' column='1'/>
	- <parameter type-id='type-id-66' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='73' column='1'/>
	+ <function-decl name='atomic_add_16' mangled-name='atomic_add_16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_16'>
	+ <parameter type-id='type-id-307' name='target'/>
	+ <parameter type-id='type-id-66' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_add_short' mangled-name='atomic_add_short' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_short'>
	- <parameter type-id='type-id-312' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='74' column='1'/>
	- <parameter type-id='type-id-7' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='74' column='1'/>
	+ <function-decl name='atomic_add_short' mangled-name='atomic_add_short' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_short'>
	+ <parameter type-id='type-id-309' name='target'/>
	+ <parameter type-id='type-id-7' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_add_32' mangled-name='atomic_add_32' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='75' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_32'>
	- <parameter type-id='type-id-314' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='75' column='1'/>
	- <parameter type-id='type-id-21' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='75' column='1'/>
	+ <function-decl name='atomic_add_32' mangled-name='atomic_add_32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_32'>
	+ <parameter type-id='type-id-311' name='target'/>
	+ <parameter type-id='type-id-21' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_add_int' mangled-name='atomic_add_int' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='76' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_int'>
	- <parameter type-id='type-id-316' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='76' column='1'/>
	- <parameter type-id='type-id-1' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='76' column='1'/>
	+ <function-decl name='atomic_add_int' mangled-name='atomic_add_int' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_int'>
	+ <parameter type-id='type-id-313' name='target'/>
	+ <parameter type-id='type-id-1' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_add_long' mangled-name='atomic_add_long' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='77' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_long'>
	- <parameter type-id='type-id-318' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='77' column='1'/>
	- <parameter type-id='type-id-5' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='77' column='1'/>
	+ <function-decl name='atomic_add_long' mangled-name='atomic_add_long' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_long'>
	+ <parameter type-id='type-id-315' name='target'/>
	+ <parameter type-id='type-id-5' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <typedef-decl name='__int64_t' type-id='type-id-5' filepath='/usr/include/x86_64-linux-gnu/bits/types.h' line='43' column='1' id='type-id-324'/>
	- <typedef-decl name='int64_t' type-id='type-id-324' filepath='/usr/include/x86_64-linux-gnu/bits/stdint-intn.h' line='27' column='1' id='type-id-325'/>
	- <function-decl name='atomic_add_64' mangled-name='atomic_add_64' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='78' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_64'>
	- <parameter type-id='type-id-320' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='78' column='1'/>
	- <parameter type-id='type-id-325' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='78' column='1'/>
	+ <typedef-decl name='__int64_t' type-id='type-id-5' id='type-id-321'/>
	+ <typedef-decl name='int64_t' type-id='type-id-321' id='type-id-322'/>
	+ <function-decl name='atomic_add_64' mangled-name='atomic_add_64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_64'>
	+ <parameter type-id='type-id-317' name='target'/>
	+ <parameter type-id='type-id-322' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <typedef-decl name='ssize_t' type-id='type-id-148' filepath='/usr/include/x86_64-linux-gnu/sys/types.h' line='108' column='1' id='type-id-326'/>
	- <function-decl name='atomic_add_ptr' mangled-name='atomic_add_ptr' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='81' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_ptr'>
	- <parameter type-id='type-id-145' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='81' column='1'/>
	- <parameter type-id='type-id-326' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='81' column='1'/>
	+ <function-decl name='atomic_add_ptr' mangled-name='atomic_add_ptr' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_ptr'>
	+ <parameter type-id='type-id-132' name='target'/>
	+ <parameter type-id='type-id-124' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_sub_8' mangled-name='atomic_sub_8' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='93' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_8'>
	- <parameter type-id='type-id-305' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='71' column='1'/>
	- <parameter type-id='type-id-323' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='71' column='1'/>
	+ <function-decl name='atomic_sub_8' mangled-name='atomic_sub_8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_8'>
	+ <parameter type-id='type-id-302' name='target'/>
	+ <parameter type-id='type-id-320' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_sub_char' mangled-name='atomic_sub_char' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='94' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_char'>
	- <parameter type-id='type-id-308' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='72' column='1'/>
	- <parameter type-id='type-id-321' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='72' column='1'/>
	+ <function-decl name='atomic_sub_char' mangled-name='atomic_sub_char' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_char'>
	+ <parameter type-id='type-id-305' name='target'/>
	+ <parameter type-id='type-id-318' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_sub_16' mangled-name='atomic_sub_16' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_16'>
	- <parameter type-id='type-id-310' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='73' column='1'/>
	- <parameter type-id='type-id-66' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='73' column='1'/>
	+ <function-decl name='atomic_sub_16' mangled-name='atomic_sub_16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_16'>
	+ <parameter type-id='type-id-307' name='target'/>
	+ <parameter type-id='type-id-66' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_sub_short' mangled-name='atomic_sub_short' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='96' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_short'>
	- <parameter type-id='type-id-312' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='74' column='1'/>
	- <parameter type-id='type-id-7' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='74' column='1'/>
	+ <function-decl name='atomic_sub_short' mangled-name='atomic_sub_short' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_short'>
	+ <parameter type-id='type-id-309' name='target'/>
	+ <parameter type-id='type-id-7' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_sub_32' mangled-name='atomic_sub_32' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='97' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_32'>
	- <parameter type-id='type-id-314' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='75' column='1'/>
	- <parameter type-id='type-id-21' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='75' column='1'/>
	+ <function-decl name='atomic_sub_32' mangled-name='atomic_sub_32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_32'>
	+ <parameter type-id='type-id-311' name='target'/>
	+ <parameter type-id='type-id-21' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_sub_int' mangled-name='atomic_sub_int' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='98' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_int'>
	- <parameter type-id='type-id-316' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='76' column='1'/>
	- <parameter type-id='type-id-1' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='76' column='1'/>
	+ <function-decl name='atomic_sub_int' mangled-name='atomic_sub_int' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_int'>
	+ <parameter type-id='type-id-313' name='target'/>
	+ <parameter type-id='type-id-1' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_sub_long' mangled-name='atomic_sub_long' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='99' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_long'>
	- <parameter type-id='type-id-318' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='77' column='1'/>
	- <parameter type-id='type-id-5' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='77' column='1'/>
	+ <function-decl name='atomic_sub_long' mangled-name='atomic_sub_long' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_long'>
	+ <parameter type-id='type-id-315' name='target'/>
	+ <parameter type-id='type-id-5' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_sub_64' mangled-name='atomic_sub_64' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='100' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_64'>
	- <parameter type-id='type-id-320' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='78' column='1'/>
	- <parameter type-id='type-id-325' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='78' column='1'/>
	+ <function-decl name='atomic_sub_64' mangled-name='atomic_sub_64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_64'>
	+ <parameter type-id='type-id-317' name='target'/>
	+ <parameter type-id='type-id-322' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_sub_ptr' mangled-name='atomic_sub_ptr' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='103' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_ptr'>
	- <parameter type-id='type-id-145' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='81' column='1'/>
	- <parameter type-id='type-id-326' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='81' column='1'/>
	+ <function-decl name='atomic_sub_ptr' mangled-name='atomic_sub_ptr' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_ptr'>
	+ <parameter type-id='type-id-132' name='target'/>
	+ <parameter type-id='type-id-124' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_or_8' mangled-name='atomic_or_8' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='115' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_8'>
	- <parameter type-id='type-id-305' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='115' column='1'/>
	- <parameter type-id='type-id-32' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='115' column='1'/>
	+ <function-decl name='atomic_or_8' mangled-name='atomic_or_8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_8'>
	+ <parameter type-id='type-id-302' name='target'/>
	+ <parameter type-id='type-id-32' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_or_uchar' mangled-name='atomic_or_uchar' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='116' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_uchar'>
	- <parameter type-id='type-id-308' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='116' column='1'/>
	- <parameter type-id='type-id-306' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='116' column='1'/>
	+ <function-decl name='atomic_or_uchar' mangled-name='atomic_or_uchar' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_uchar'>
	+ <parameter type-id='type-id-305' name='target'/>
	+ <parameter type-id='type-id-303' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_or_16' mangled-name='atomic_or_16' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='117' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_16'>
	- <parameter type-id='type-id-310' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='117' column='1'/>
	- <parameter type-id='type-id-225' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='117' column='1'/>
	+ <function-decl name='atomic_or_16' mangled-name='atomic_or_16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_16'>
	+ <parameter type-id='type-id-307' name='target'/>
	+ <parameter type-id='type-id-224' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_or_ushort' mangled-name='atomic_or_ushort' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='118' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_ushort'>
	- <parameter type-id='type-id-312' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='118' column='1'/>
	- <parameter type-id='type-id-228' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='118' column='1'/>
	+ <function-decl name='atomic_or_ushort' mangled-name='atomic_or_ushort' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_ushort'>
	+ <parameter type-id='type-id-309' name='target'/>
	+ <parameter type-id='type-id-227' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_or_32' mangled-name='atomic_or_32' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_32'>
	- <parameter type-id='type-id-314' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='119' column='1'/>
	- <parameter type-id='type-id-22' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='119' column='1'/>
	+ <function-decl name='atomic_or_32' mangled-name='atomic_or_32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_32'>
	+ <parameter type-id='type-id-311' name='target'/>
	+ <parameter type-id='type-id-22' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_or_uint' mangled-name='atomic_or_uint' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_uint'>
	- <parameter type-id='type-id-316' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='120' column='1'/>
	- <parameter type-id='type-id-34' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='120' column='1'/>
	+ <function-decl name='atomic_or_uint' mangled-name='atomic_or_uint' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_uint'>
	+ <parameter type-id='type-id-313' name='target'/>
	+ <parameter type-id='type-id-34' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_or_ulong' mangled-name='atomic_or_ulong' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='121' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_ulong'>
	- <parameter type-id='type-id-318' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='121' column='1'/>
	- <parameter type-id='type-id-184' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='121' column='1'/>
	+ <function-decl name='atomic_or_ulong' mangled-name='atomic_or_ulong' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_ulong'>
	+ <parameter type-id='type-id-315' name='target'/>
	+ <parameter type-id='type-id-184' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_or_64' mangled-name='atomic_or_64' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='122' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_64'>
	- <parameter type-id='type-id-320' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='122' column='1'/>
	- <parameter type-id='type-id-23' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='122' column='1'/>
	+ <function-decl name='atomic_or_64' mangled-name='atomic_or_64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_64'>
	+ <parameter type-id='type-id-317' name='target'/>
	+ <parameter type-id='type-id-23' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_and_8' mangled-name='atomic_and_8' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_8'>
	- <parameter type-id='type-id-305' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='115' column='1'/>
	- <parameter type-id='type-id-32' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='115' column='1'/>
	+ <function-decl name='atomic_and_8' mangled-name='atomic_and_8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_8'>
	+ <parameter type-id='type-id-302' name='target'/>
	+ <parameter type-id='type-id-32' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_and_uchar' mangled-name='atomic_and_uchar' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='132' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_uchar'>
	- <parameter type-id='type-id-308' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='116' column='1'/>
	- <parameter type-id='type-id-306' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='116' column='1'/>
	+ <function-decl name='atomic_and_uchar' mangled-name='atomic_and_uchar' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_uchar'>
	+ <parameter type-id='type-id-305' name='target'/>
	+ <parameter type-id='type-id-303' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_and_16' mangled-name='atomic_and_16' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='133' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_16'>
	- <parameter type-id='type-id-310' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='117' column='1'/>
	- <parameter type-id='type-id-225' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='117' column='1'/>
	+ <function-decl name='atomic_and_16' mangled-name='atomic_and_16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_16'>
	+ <parameter type-id='type-id-307' name='target'/>
	+ <parameter type-id='type-id-224' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_and_ushort' mangled-name='atomic_and_ushort' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='134' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_ushort'>
	- <parameter type-id='type-id-312' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='118' column='1'/>
	- <parameter type-id='type-id-228' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='118' column='1'/>
	+ <function-decl name='atomic_and_ushort' mangled-name='atomic_and_ushort' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_ushort'>
	+ <parameter type-id='type-id-309' name='target'/>
	+ <parameter type-id='type-id-227' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_and_32' mangled-name='atomic_and_32' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='135' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_32'>
	- <parameter type-id='type-id-314' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='119' column='1'/>
	- <parameter type-id='type-id-22' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='119' column='1'/>
	+ <function-decl name='atomic_and_32' mangled-name='atomic_and_32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_32'>
	+ <parameter type-id='type-id-311' name='target'/>
	+ <parameter type-id='type-id-22' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_and_uint' mangled-name='atomic_and_uint' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='136' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_uint'>
	- <parameter type-id='type-id-316' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='120' column='1'/>
	- <parameter type-id='type-id-34' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='120' column='1'/>
	+ <function-decl name='atomic_and_uint' mangled-name='atomic_and_uint' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_uint'>
	+ <parameter type-id='type-id-313' name='target'/>
	+ <parameter type-id='type-id-34' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_and_ulong' mangled-name='atomic_and_ulong' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='137' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_ulong'>
	- <parameter type-id='type-id-318' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='121' column='1'/>
	- <parameter type-id='type-id-184' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='121' column='1'/>
	+ <function-decl name='atomic_and_ulong' mangled-name='atomic_and_ulong' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_ulong'>
	+ <parameter type-id='type-id-315' name='target'/>
	+ <parameter type-id='type-id-184' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_and_64' mangled-name='atomic_and_64' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='138' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_64'>
	- <parameter type-id='type-id-320' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='122' column='1'/>
	- <parameter type-id='type-id-23' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='122' column='1'/>
	+ <function-decl name='atomic_and_64' mangled-name='atomic_and_64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_64'>
	+ <parameter type-id='type-id-317' name='target'/>
	+ <parameter type-id='type-id-23' name='bits'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='atomic_inc_8_nv' mangled-name='atomic_inc_8_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='151' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_8_nv'>
	- <parameter type-id='type-id-305' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='151' column='1'/>
	+ <function-decl name='atomic_inc_8_nv' mangled-name='atomic_inc_8_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_8_nv'>
	+ <parameter type-id='type-id-302' name='target'/>
	<return type-id='type-id-32'/>
	</function-decl>
	- <function-decl name='atomic_inc_uchar_nv' mangled-name='atomic_inc_uchar_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='152' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_uchar_nv'>
	- <parameter type-id='type-id-308' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='152' column='1'/>
	- <return type-id='type-id-306'/>
	+ <function-decl name='atomic_inc_uchar_nv' mangled-name='atomic_inc_uchar_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_uchar_nv'>
	+ <parameter type-id='type-id-305' name='target'/>
	+ <return type-id='type-id-303'/>
	</function-decl>
	- <function-decl name='atomic_inc_16_nv' mangled-name='atomic_inc_16_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_16_nv'>
	- <parameter type-id='type-id-310' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='153' column='1'/>
	- <return type-id='type-id-225'/>
	+ <function-decl name='atomic_inc_16_nv' mangled-name='atomic_inc_16_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_16_nv'>
	+ <parameter type-id='type-id-307' name='target'/>
	+ <return type-id='type-id-224'/>
	</function-decl>
	- <function-decl name='atomic_inc_ushort_nv' mangled-name='atomic_inc_ushort_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='154' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_ushort_nv'>
	- <parameter type-id='type-id-312' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='154' column='1'/>
	- <return type-id='type-id-228'/>
	+ <function-decl name='atomic_inc_ushort_nv' mangled-name='atomic_inc_ushort_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_ushort_nv'>
	+ <parameter type-id='type-id-309' name='target'/>
	+ <return type-id='type-id-227'/>
	</function-decl>
	- <function-decl name='atomic_inc_32_nv' mangled-name='atomic_inc_32_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_32_nv'>
	- <parameter type-id='type-id-314' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='155' column='1'/>
	+ <function-decl name='atomic_inc_32_nv' mangled-name='atomic_inc_32_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_32_nv'>
	+ <parameter type-id='type-id-311' name='target'/>
	<return type-id='type-id-22'/>
	</function-decl>
	- <function-decl name='atomic_inc_uint_nv' mangled-name='atomic_inc_uint_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='156' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_uint_nv'>
	- <parameter type-id='type-id-316' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='156' column='1'/>
	+ <function-decl name='atomic_inc_uint_nv' mangled-name='atomic_inc_uint_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_uint_nv'>
	+ <parameter type-id='type-id-313' name='target'/>
	<return type-id='type-id-34'/>
	</function-decl>
	- <function-decl name='atomic_inc_ulong_nv' mangled-name='atomic_inc_ulong_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='157' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_ulong_nv'>
	- <parameter type-id='type-id-318' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='157' column='1'/>
	+ <function-decl name='atomic_inc_ulong_nv' mangled-name='atomic_inc_ulong_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_ulong_nv'>
	+ <parameter type-id='type-id-315' name='target'/>
	<return type-id='type-id-184'/>
	</function-decl>
	- <function-decl name='atomic_inc_64_nv' mangled-name='atomic_inc_64_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='158' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_64_nv'>
	- <parameter type-id='type-id-320' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='158' column='1'/>
	+ <function-decl name='atomic_inc_64_nv' mangled-name='atomic_inc_64_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_inc_64_nv'>
	+ <parameter type-id='type-id-317' name='target'/>
	<return type-id='type-id-23'/>
	</function-decl>
	- <function-decl name='atomic_dec_8_nv' mangled-name='atomic_dec_8_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='167' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_8_nv'>
	- <parameter type-id='type-id-305' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='151' column='1'/>
	+ <function-decl name='atomic_dec_8_nv' mangled-name='atomic_dec_8_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_8_nv'>
	+ <parameter type-id='type-id-302' name='target'/>
	<return type-id='type-id-32'/>
	</function-decl>
	- <function-decl name='atomic_dec_uchar_nv' mangled-name='atomic_dec_uchar_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='168' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_uchar_nv'>
	- <parameter type-id='type-id-308' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='152' column='1'/>
	- <return type-id='type-id-306'/>
	+ <function-decl name='atomic_dec_uchar_nv' mangled-name='atomic_dec_uchar_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_uchar_nv'>
	+ <parameter type-id='type-id-305' name='target'/>
	+ <return type-id='type-id-303'/>
	</function-decl>
	- <function-decl name='atomic_dec_16_nv' mangled-name='atomic_dec_16_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_16_nv'>
	- <parameter type-id='type-id-310' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='153' column='1'/>
	- <return type-id='type-id-225'/>
	+ <function-decl name='atomic_dec_16_nv' mangled-name='atomic_dec_16_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_16_nv'>
	+ <parameter type-id='type-id-307' name='target'/>
	+ <return type-id='type-id-224'/>
	</function-decl>
	- <function-decl name='atomic_dec_ushort_nv' mangled-name='atomic_dec_ushort_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='170' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_ushort_nv'>
	- <parameter type-id='type-id-312' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='154' column='1'/>
	- <return type-id='type-id-228'/>
	+ <function-decl name='atomic_dec_ushort_nv' mangled-name='atomic_dec_ushort_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_ushort_nv'>
	+ <parameter type-id='type-id-309' name='target'/>
	+ <return type-id='type-id-227'/>
	</function-decl>
	- <function-decl name='atomic_dec_32_nv' mangled-name='atomic_dec_32_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='171' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_32_nv'>
	- <parameter type-id='type-id-314' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='155' column='1'/>
	+ <function-decl name='atomic_dec_32_nv' mangled-name='atomic_dec_32_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_32_nv'>
	+ <parameter type-id='type-id-311' name='target'/>
	<return type-id='type-id-22'/>
	</function-decl>
	- <function-decl name='atomic_dec_uint_nv' mangled-name='atomic_dec_uint_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='172' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_uint_nv'>
	- <parameter type-id='type-id-316' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='156' column='1'/>
	+ <function-decl name='atomic_dec_uint_nv' mangled-name='atomic_dec_uint_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_uint_nv'>
	+ <parameter type-id='type-id-313' name='target'/>
	<return type-id='type-id-34'/>
	</function-decl>
	- <function-decl name='atomic_dec_ulong_nv' mangled-name='atomic_dec_ulong_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_ulong_nv'>
	- <parameter type-id='type-id-318' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='157' column='1'/>
	+ <function-decl name='atomic_dec_ulong_nv' mangled-name='atomic_dec_ulong_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_ulong_nv'>
	+ <parameter type-id='type-id-315' name='target'/>
	<return type-id='type-id-184'/>
	</function-decl>
	- <function-decl name='atomic_dec_64_nv' mangled-name='atomic_dec_64_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='174' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_64_nv'>
	- <parameter type-id='type-id-320' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='158' column='1'/>
	+ <function-decl name='atomic_dec_64_nv' mangled-name='atomic_dec_64_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_dec_64_nv'>
	+ <parameter type-id='type-id-317' name='target'/>
	<return type-id='type-id-23'/>
	</function-decl>
	- <function-decl name='atomic_add_8_nv' mangled-name='atomic_add_8_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_8_nv'>
	- <parameter type-id='type-id-305' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='183' column='1'/>
	- <parameter type-id='type-id-323' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='183' column='1'/>
	+ <function-decl name='atomic_add_8_nv' mangled-name='atomic_add_8_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_8_nv'>
	+ <parameter type-id='type-id-302' name='target'/>
	+ <parameter type-id='type-id-320' name='bits'/>
	<return type-id='type-id-32'/>
	</function-decl>
	- <function-decl name='atomic_add_char_nv' mangled-name='atomic_add_char_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='184' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_char_nv'>
	- <parameter type-id='type-id-308' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='184' column='1'/>
	- <parameter type-id='type-id-321' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='184' column='1'/>
	- <return type-id='type-id-306'/>
	+ <function-decl name='atomic_add_char_nv' mangled-name='atomic_add_char_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_char_nv'>
	+ <parameter type-id='type-id-305' name='target'/>
	+ <parameter type-id='type-id-318' name='bits'/>
	+ <return type-id='type-id-303'/>
	</function-decl>
	- <function-decl name='atomic_add_16_nv' mangled-name='atomic_add_16_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='185' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_16_nv'>
	- <parameter type-id='type-id-310' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='185' column='1'/>
	- <parameter type-id='type-id-66' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='185' column='1'/>
	- <return type-id='type-id-225'/>
	+ <function-decl name='atomic_add_16_nv' mangled-name='atomic_add_16_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_16_nv'>
	+ <parameter type-id='type-id-307' name='target'/>
	+ <parameter type-id='type-id-66' name='bits'/>
	+ <return type-id='type-id-224'/>
	</function-decl>
	- <function-decl name='atomic_add_short_nv' mangled-name='atomic_add_short_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='186' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_short_nv'>
	- <parameter type-id='type-id-312' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='186' column='1'/>
	- <parameter type-id='type-id-7' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='186' column='1'/>
	- <return type-id='type-id-228'/>
	+ <function-decl name='atomic_add_short_nv' mangled-name='atomic_add_short_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_short_nv'>
	+ <parameter type-id='type-id-309' name='target'/>
	+ <parameter type-id='type-id-7' name='bits'/>
	+ <return type-id='type-id-227'/>
	</function-decl>
	- <function-decl name='atomic_add_32_nv' mangled-name='atomic_add_32_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='187' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_32_nv'>
	- <parameter type-id='type-id-314' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='187' column='1'/>
	- <parameter type-id='type-id-21' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='187' column='1'/>
	+ <function-decl name='atomic_add_32_nv' mangled-name='atomic_add_32_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_32_nv'>
	+ <parameter type-id='type-id-311' name='target'/>
	+ <parameter type-id='type-id-21' name='bits'/>
	<return type-id='type-id-22'/>
	</function-decl>
	- <function-decl name='atomic_add_int_nv' mangled-name='atomic_add_int_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='188' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_int_nv'>
	- <parameter type-id='type-id-316' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='188' column='1'/>
	- <parameter type-id='type-id-1' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='188' column='1'/>
	+ <function-decl name='atomic_add_int_nv' mangled-name='atomic_add_int_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_int_nv'>
	+ <parameter type-id='type-id-313' name='target'/>
	+ <parameter type-id='type-id-1' name='bits'/>
	<return type-id='type-id-34'/>
	</function-decl>
	- <function-decl name='atomic_add_long_nv' mangled-name='atomic_add_long_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='189' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_long_nv'>
	- <parameter type-id='type-id-318' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='189' column='1'/>
	- <parameter type-id='type-id-5' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='189' column='1'/>
	+ <function-decl name='atomic_add_long_nv' mangled-name='atomic_add_long_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_long_nv'>
	+ <parameter type-id='type-id-315' name='target'/>
	+ <parameter type-id='type-id-5' name='bits'/>
	<return type-id='type-id-184'/>
	</function-decl>
	- <function-decl name='atomic_add_64_nv' mangled-name='atomic_add_64_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='190' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_64_nv'>
	- <parameter type-id='type-id-320' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='190' column='1'/>
	- <parameter type-id='type-id-325' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='190' column='1'/>
	+ <function-decl name='atomic_add_64_nv' mangled-name='atomic_add_64_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_64_nv'>
	+ <parameter type-id='type-id-317' name='target'/>
	+ <parameter type-id='type-id-322' name='bits'/>
	<return type-id='type-id-23'/>
	</function-decl>
	- <function-decl name='atomic_add_ptr_nv' mangled-name='atomic_add_ptr_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='193' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_ptr_nv'>
	- <parameter type-id='type-id-145' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='193' column='1'/>
	- <parameter type-id='type-id-326' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='193' column='1'/>
	+ <function-decl name='atomic_add_ptr_nv' mangled-name='atomic_add_ptr_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_add_ptr_nv'>
	+ <parameter type-id='type-id-132' name='target'/>
	+ <parameter type-id='type-id-124' name='bits'/>
	<return type-id='type-id-73'/>
	</function-decl>
	- <function-decl name='atomic_sub_8_nv' mangled-name='atomic_sub_8_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_8_nv'>
	- <parameter type-id='type-id-305' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='183' column='1'/>
	- <parameter type-id='type-id-323' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='183' column='1'/>
	+ <function-decl name='atomic_sub_8_nv' mangled-name='atomic_sub_8_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_8_nv'>
	+ <parameter type-id='type-id-302' name='target'/>
	+ <parameter type-id='type-id-320' name='bits'/>
	<return type-id='type-id-32'/>
	</function-decl>
	- <function-decl name='atomic_sub_char_nv' mangled-name='atomic_sub_char_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='206' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_char_nv'>
	- <parameter type-id='type-id-308' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='184' column='1'/>
	- <parameter type-id='type-id-321' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='184' column='1'/>
	- <return type-id='type-id-306'/>
	+ <function-decl name='atomic_sub_char_nv' mangled-name='atomic_sub_char_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_char_nv'>
	+ <parameter type-id='type-id-305' name='target'/>
	+ <parameter type-id='type-id-318' name='bits'/>
	+ <return type-id='type-id-303'/>
	</function-decl>
	- <function-decl name='atomic_sub_16_nv' mangled-name='atomic_sub_16_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='207' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_16_nv'>
	- <parameter type-id='type-id-310' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='185' column='1'/>
	- <parameter type-id='type-id-66' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='185' column='1'/>
	- <return type-id='type-id-225'/>
	+ <function-decl name='atomic_sub_16_nv' mangled-name='atomic_sub_16_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_16_nv'>
	+ <parameter type-id='type-id-307' name='target'/>
	+ <parameter type-id='type-id-66' name='bits'/>
	+ <return type-id='type-id-224'/>
	</function-decl>
	- <function-decl name='atomic_sub_short_nv' mangled-name='atomic_sub_short_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='208' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_short_nv'>
	- <parameter type-id='type-id-312' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='186' column='1'/>
	- <parameter type-id='type-id-7' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='186' column='1'/>
	- <return type-id='type-id-228'/>
	+ <function-decl name='atomic_sub_short_nv' mangled-name='atomic_sub_short_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_short_nv'>
	+ <parameter type-id='type-id-309' name='target'/>
	+ <parameter type-id='type-id-7' name='bits'/>
	+ <return type-id='type-id-227'/>
	</function-decl>
	- <function-decl name='atomic_sub_32_nv' mangled-name='atomic_sub_32_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_32_nv'>
	- <parameter type-id='type-id-314' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='187' column='1'/>
	- <parameter type-id='type-id-21' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='187' column='1'/>
	+ <function-decl name='atomic_sub_32_nv' mangled-name='atomic_sub_32_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_32_nv'>
	+ <parameter type-id='type-id-311' name='target'/>
	+ <parameter type-id='type-id-21' name='bits'/>
	<return type-id='type-id-22'/>
	</function-decl>
	- <function-decl name='atomic_sub_int_nv' mangled-name='atomic_sub_int_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_int_nv'>
	- <parameter type-id='type-id-316' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='188' column='1'/>
	- <parameter type-id='type-id-1' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='188' column='1'/>
	+ <function-decl name='atomic_sub_int_nv' mangled-name='atomic_sub_int_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_int_nv'>
	+ <parameter type-id='type-id-313' name='target'/>
	+ <parameter type-id='type-id-1' name='bits'/>
	<return type-id='type-id-34'/>
	</function-decl>
	- <function-decl name='atomic_sub_long_nv' mangled-name='atomic_sub_long_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='211' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_long_nv'>
	- <parameter type-id='type-id-318' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='189' column='1'/>
	- <parameter type-id='type-id-5' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='189' column='1'/>
	+ <function-decl name='atomic_sub_long_nv' mangled-name='atomic_sub_long_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_long_nv'>
	+ <parameter type-id='type-id-315' name='target'/>
	+ <parameter type-id='type-id-5' name='bits'/>
	<return type-id='type-id-184'/>
	</function-decl>
	- <function-decl name='atomic_sub_64_nv' mangled-name='atomic_sub_64_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_64_nv'>
	- <parameter type-id='type-id-320' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='190' column='1'/>
	- <parameter type-id='type-id-325' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='190' column='1'/>
	+ <function-decl name='atomic_sub_64_nv' mangled-name='atomic_sub_64_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_64_nv'>
	+ <parameter type-id='type-id-317' name='target'/>
	+ <parameter type-id='type-id-322' name='bits'/>
	<return type-id='type-id-23'/>
	</function-decl>
	- <function-decl name='atomic_sub_ptr_nv' mangled-name='atomic_sub_ptr_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='215' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_ptr_nv'>
	- <parameter type-id='type-id-145' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='193' column='1'/>
	- <parameter type-id='type-id-326' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='193' column='1'/>
	+ <function-decl name='atomic_sub_ptr_nv' mangled-name='atomic_sub_ptr_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_sub_ptr_nv'>
	+ <parameter type-id='type-id-132' name='target'/>
	+ <parameter type-id='type-id-124' name='bits'/>
	<return type-id='type-id-73'/>
	</function-decl>
	- <function-decl name='atomic_or_8_nv' mangled-name='atomic_or_8_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='227' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_8_nv'>
	- <parameter type-id='type-id-305' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='227' column='1'/>
	- <parameter type-id='type-id-32' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='227' column='1'/>
	+ <function-decl name='atomic_or_8_nv' mangled-name='atomic_or_8_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_8_nv'>
	+ <parameter type-id='type-id-302' name='target'/>
	+ <parameter type-id='type-id-32' name='bits'/>
	<return type-id='type-id-32'/>
	</function-decl>
	- <function-decl name='atomic_or_uchar_nv' mangled-name='atomic_or_uchar_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='228' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_uchar_nv'>
	- <parameter type-id='type-id-308' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='228' column='1'/>
	- <parameter type-id='type-id-306' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='228' column='1'/>
	- <return type-id='type-id-306'/>
	+ <function-decl name='atomic_or_uchar_nv' mangled-name='atomic_or_uchar_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_uchar_nv'>
	+ <parameter type-id='type-id-305' name='target'/>
	+ <parameter type-id='type-id-303' name='bits'/>
	+ <return type-id='type-id-303'/>
	</function-decl>
	- <function-decl name='atomic_or_16_nv' mangled-name='atomic_or_16_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_16_nv'>
	- <parameter type-id='type-id-310' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='229' column='1'/>
	- <parameter type-id='type-id-225' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='229' column='1'/>
	- <return type-id='type-id-225'/>
	+ <function-decl name='atomic_or_16_nv' mangled-name='atomic_or_16_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_16_nv'>
	+ <parameter type-id='type-id-307' name='target'/>
	+ <parameter type-id='type-id-224' name='bits'/>
	+ <return type-id='type-id-224'/>
	</function-decl>
	- <function-decl name='atomic_or_ushort_nv' mangled-name='atomic_or_ushort_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='230' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_ushort_nv'>
	- <parameter type-id='type-id-312' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='230' column='1'/>
	- <parameter type-id='type-id-228' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='230' column='1'/>
	- <return type-id='type-id-228'/>
	+ <function-decl name='atomic_or_ushort_nv' mangled-name='atomic_or_ushort_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_ushort_nv'>
	+ <parameter type-id='type-id-309' name='target'/>
	+ <parameter type-id='type-id-227' name='bits'/>
	+ <return type-id='type-id-227'/>
	</function-decl>
	- <function-decl name='atomic_or_32_nv' mangled-name='atomic_or_32_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='231' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_32_nv'>
	- <parameter type-id='type-id-314' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='231' column='1'/>
	- <parameter type-id='type-id-22' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='231' column='1'/>
	+ <function-decl name='atomic_or_32_nv' mangled-name='atomic_or_32_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_32_nv'>
	+ <parameter type-id='type-id-311' name='target'/>
	+ <parameter type-id='type-id-22' name='bits'/>
	<return type-id='type-id-22'/>
	</function-decl>
	- <function-decl name='atomic_or_uint_nv' mangled-name='atomic_or_uint_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='232' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_uint_nv'>
	- <parameter type-id='type-id-316' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='232' column='1'/>
	- <parameter type-id='type-id-34' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='232' column='1'/>
	+ <function-decl name='atomic_or_uint_nv' mangled-name='atomic_or_uint_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_uint_nv'>
	+ <parameter type-id='type-id-313' name='target'/>
	+ <parameter type-id='type-id-34' name='bits'/>
	<return type-id='type-id-34'/>
	</function-decl>
	- <function-decl name='atomic_or_ulong_nv' mangled-name='atomic_or_ulong_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='233' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_ulong_nv'>
	- <parameter type-id='type-id-318' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='233' column='1'/>
	- <parameter type-id='type-id-184' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='233' column='1'/>
	+ <function-decl name='atomic_or_ulong_nv' mangled-name='atomic_or_ulong_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_ulong_nv'>
	+ <parameter type-id='type-id-315' name='target'/>
	+ <parameter type-id='type-id-184' name='bits'/>
	<return type-id='type-id-184'/>
	</function-decl>
	- <function-decl name='atomic_or_64_nv' mangled-name='atomic_or_64_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='234' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_64_nv'>
	- <parameter type-id='type-id-320' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='234' column='1'/>
	- <parameter type-id='type-id-23' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='234' column='1'/>
	+ <function-decl name='atomic_or_64_nv' mangled-name='atomic_or_64_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_or_64_nv'>
	+ <parameter type-id='type-id-317' name='target'/>
	+ <parameter type-id='type-id-23' name='bits'/>
	<return type-id='type-id-23'/>
	</function-decl>
	- <function-decl name='atomic_and_8_nv' mangled-name='atomic_and_8_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='243' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_8_nv'>
	- <parameter type-id='type-id-305' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='227' column='1'/>
	- <parameter type-id='type-id-32' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='227' column='1'/>
	+ <function-decl name='atomic_and_8_nv' mangled-name='atomic_and_8_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_8_nv'>
	+ <parameter type-id='type-id-302' name='target'/>
	+ <parameter type-id='type-id-32' name='bits'/>
	<return type-id='type-id-32'/>
	</function-decl>
	- <function-decl name='atomic_and_uchar_nv' mangled-name='atomic_and_uchar_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='244' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_uchar_nv'>
	- <parameter type-id='type-id-308' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='228' column='1'/>
	- <parameter type-id='type-id-306' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='228' column='1'/>
	- <return type-id='type-id-306'/>
	+ <function-decl name='atomic_and_uchar_nv' mangled-name='atomic_and_uchar_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_uchar_nv'>
	+ <parameter type-id='type-id-305' name='target'/>
	+ <parameter type-id='type-id-303' name='bits'/>
	+ <return type-id='type-id-303'/>
	</function-decl>
	- <function-decl name='atomic_and_16_nv' mangled-name='atomic_and_16_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='245' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_16_nv'>
	- <parameter type-id='type-id-310' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='229' column='1'/>
	- <parameter type-id='type-id-225' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='229' column='1'/>
	- <return type-id='type-id-225'/>
	+ <function-decl name='atomic_and_16_nv' mangled-name='atomic_and_16_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_16_nv'>
	+ <parameter type-id='type-id-307' name='target'/>
	+ <parameter type-id='type-id-224' name='bits'/>
	+ <return type-id='type-id-224'/>
	</function-decl>
	- <function-decl name='atomic_and_ushort_nv' mangled-name='atomic_and_ushort_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='246' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_ushort_nv'>
	- <parameter type-id='type-id-312' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='230' column='1'/>
	- <parameter type-id='type-id-228' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='230' column='1'/>
	- <return type-id='type-id-228'/>
	+ <function-decl name='atomic_and_ushort_nv' mangled-name='atomic_and_ushort_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_ushort_nv'>
	+ <parameter type-id='type-id-309' name='target'/>
	+ <parameter type-id='type-id-227' name='bits'/>
	+ <return type-id='type-id-227'/>
	</function-decl>
	- <function-decl name='atomic_and_32_nv' mangled-name='atomic_and_32_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='247' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_32_nv'>
	- <parameter type-id='type-id-314' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='231' column='1'/>
	- <parameter type-id='type-id-22' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='231' column='1'/>
	+ <function-decl name='atomic_and_32_nv' mangled-name='atomic_and_32_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_32_nv'>
	+ <parameter type-id='type-id-311' name='target'/>
	+ <parameter type-id='type-id-22' name='bits'/>
	<return type-id='type-id-22'/>
	</function-decl>
	- <function-decl name='atomic_and_uint_nv' mangled-name='atomic_and_uint_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='248' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_uint_nv'>
	- <parameter type-id='type-id-316' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='232' column='1'/>
	- <parameter type-id='type-id-34' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='232' column='1'/>
	+ <function-decl name='atomic_and_uint_nv' mangled-name='atomic_and_uint_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_uint_nv'>
	+ <parameter type-id='type-id-313' name='target'/>
	+ <parameter type-id='type-id-34' name='bits'/>
	<return type-id='type-id-34'/>
	</function-decl>
	- <function-decl name='atomic_and_ulong_nv' mangled-name='atomic_and_ulong_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='249' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_ulong_nv'>
	- <parameter type-id='type-id-318' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='233' column='1'/>
	- <parameter type-id='type-id-184' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='233' column='1'/>
	+ <function-decl name='atomic_and_ulong_nv' mangled-name='atomic_and_ulong_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_ulong_nv'>
	+ <parameter type-id='type-id-315' name='target'/>
	+ <parameter type-id='type-id-184' name='bits'/>
	<return type-id='type-id-184'/>
	</function-decl>
	- <function-decl name='atomic_and_64_nv' mangled-name='atomic_and_64_nv' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_64_nv'>
	- <parameter type-id='type-id-320' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='234' column='1'/>
	- <parameter type-id='type-id-23' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='234' column='1'/>
	+ <function-decl name='atomic_and_64_nv' mangled-name='atomic_and_64_nv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_and_64_nv'>
	+ <parameter type-id='type-id-317' name='target'/>
	+ <parameter type-id='type-id-23' name='bits'/>
	<return type-id='type-id-23'/>
	</function-decl>
	- <function-decl name='atomic_cas_8' mangled-name='atomic_cas_8' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='271' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_8'>
	- <parameter type-id='type-id-305' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='271' column='1'/>
	- <parameter type-id='type-id-32' name='exp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='271' column='1'/>
	- <parameter type-id='type-id-32' name='des' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='271' column='1'/>
	+ <function-decl name='atomic_cas_8' mangled-name='atomic_cas_8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_8'>
	+ <parameter type-id='type-id-302' name='target'/>
	+ <parameter type-id='type-id-32' name='exp'/>
	+ <parameter type-id='type-id-32' name='des'/>
	<return type-id='type-id-32'/>
	</function-decl>
	- <function-decl name='atomic_cas_uchar' mangled-name='atomic_cas_uchar' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='272' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_uchar'>
	- <parameter type-id='type-id-308' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='272' column='1'/>
	- <parameter type-id='type-id-306' name='exp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='272' column='1'/>
	- <parameter type-id='type-id-306' name='des' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='272' column='1'/>
	- <return type-id='type-id-306'/>
	- </function-decl>
	- <function-decl name='atomic_cas_16' mangled-name='atomic_cas_16' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='273' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_16'>
	- <parameter type-id='type-id-310' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='273' column='1'/>
	- <parameter type-id='type-id-225' name='exp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='273' column='1'/>
	- <parameter type-id='type-id-225' name='des' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='273' column='1'/>
	- <return type-id='type-id-225'/>
	- </function-decl>
	- <function-decl name='atomic_cas_ushort' mangled-name='atomic_cas_ushort' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='274' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_ushort'>
	- <parameter type-id='type-id-312' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='274' column='1'/>
	- <parameter type-id='type-id-228' name='exp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='274' column='1'/>
	- <parameter type-id='type-id-228' name='des' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='274' column='1'/>
	- <return type-id='type-id-228'/>
	- </function-decl>
	- <function-decl name='atomic_cas_32' mangled-name='atomic_cas_32' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='275' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_32'>
	- <parameter type-id='type-id-314' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='275' column='1'/>
	- <parameter type-id='type-id-22' name='exp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='275' column='1'/>
	- <parameter type-id='type-id-22' name='des' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='275' column='1'/>
	+ <function-decl name='atomic_cas_uchar' mangled-name='atomic_cas_uchar' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_uchar'>
	+ <parameter type-id='type-id-305' name='target'/>
	+ <parameter type-id='type-id-303' name='exp'/>
	+ <parameter type-id='type-id-303' name='des'/>
	+ <return type-id='type-id-303'/>
	+ </function-decl>
	+ <function-decl name='atomic_cas_16' mangled-name='atomic_cas_16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_16'>
	+ <parameter type-id='type-id-307' name='target'/>
	+ <parameter type-id='type-id-224' name='exp'/>
	+ <parameter type-id='type-id-224' name='des'/>
	+ <return type-id='type-id-224'/>
	+ </function-decl>
	+ <function-decl name='atomic_cas_ushort' mangled-name='atomic_cas_ushort' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_ushort'>
	+ <parameter type-id='type-id-309' name='target'/>
	+ <parameter type-id='type-id-227' name='exp'/>
	+ <parameter type-id='type-id-227' name='des'/>
	+ <return type-id='type-id-227'/>
	+ </function-decl>
	+ <function-decl name='atomic_cas_32' mangled-name='atomic_cas_32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_32'>
	+ <parameter type-id='type-id-311' name='target'/>
	+ <parameter type-id='type-id-22' name='exp'/>
	+ <parameter type-id='type-id-22' name='des'/>
	<return type-id='type-id-22'/>
	</function-decl>
	- <function-decl name='atomic_cas_uint' mangled-name='atomic_cas_uint' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='276' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_uint'>
	- <parameter type-id='type-id-316' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='276' column='1'/>
	- <parameter type-id='type-id-34' name='exp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='276' column='1'/>
	- <parameter type-id='type-id-34' name='des' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='276' column='1'/>
	+ <function-decl name='atomic_cas_uint' mangled-name='atomic_cas_uint' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_uint'>
	+ <parameter type-id='type-id-313' name='target'/>
	+ <parameter type-id='type-id-34' name='exp'/>
	+ <parameter type-id='type-id-34' name='des'/>
	<return type-id='type-id-34'/>
	</function-decl>
	- <function-decl name='atomic_cas_ulong' mangled-name='atomic_cas_ulong' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_ulong'>
	- <parameter type-id='type-id-318' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='277' column='1'/>
	- <parameter type-id='type-id-184' name='exp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='277' column='1'/>
	- <parameter type-id='type-id-184' name='des' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='277' column='1'/>
	+ <function-decl name='atomic_cas_ulong' mangled-name='atomic_cas_ulong' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_ulong'>
	+ <parameter type-id='type-id-315' name='target'/>
	+ <parameter type-id='type-id-184' name='exp'/>
	+ <parameter type-id='type-id-184' name='des'/>
	<return type-id='type-id-184'/>
	</function-decl>
	- <function-decl name='atomic_cas_64' mangled-name='atomic_cas_64' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_64'>
	- <parameter type-id='type-id-320' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='278' column='1'/>
	- <parameter type-id='type-id-23' name='exp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='278' column='1'/>
	- <parameter type-id='type-id-23' name='des' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='278' column='1'/>
	+ <function-decl name='atomic_cas_64' mangled-name='atomic_cas_64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_64'>
	+ <parameter type-id='type-id-317' name='target'/>
	+ <parameter type-id='type-id-23' name='exp'/>
	+ <parameter type-id='type-id-23' name='des'/>
	<return type-id='type-id-23'/>
	</function-decl>
	- <function-decl name='atomic_cas_ptr' mangled-name='atomic_cas_ptr' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='281' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_ptr'>
	- <parameter type-id='type-id-145' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='281' column='1'/>
	- <parameter type-id='type-id-73' name='exp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='281' column='1'/>
	- <parameter type-id='type-id-73' name='des' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='281' column='1'/>
	+ <function-decl name='atomic_cas_ptr' mangled-name='atomic_cas_ptr' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_cas_ptr'>
	+ <parameter type-id='type-id-132' name='target'/>
	+ <parameter type-id='type-id-73' name='exp'/>
	+ <parameter type-id='type-id-73' name='des'/>
	<return type-id='type-id-73'/>
	</function-decl>
	- <function-decl name='atomic_swap_8' mangled-name='atomic_swap_8' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='300' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_8'>
	- <parameter type-id='type-id-305' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='227' column='1'/>
	- <parameter type-id='type-id-32' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='227' column='1'/>
	+ <function-decl name='atomic_swap_8' mangled-name='atomic_swap_8' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_8'>
	+ <parameter type-id='type-id-302' name='target'/>
	+ <parameter type-id='type-id-32' name='bits'/>
	<return type-id='type-id-32'/>
	</function-decl>
	- <function-decl name='atomic_swap_uchar' mangled-name='atomic_swap_uchar' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='301' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_uchar'>
	- <parameter type-id='type-id-308' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='228' column='1'/>
	- <parameter type-id='type-id-306' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='228' column='1'/>
	- <return type-id='type-id-306'/>
	+ <function-decl name='atomic_swap_uchar' mangled-name='atomic_swap_uchar' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_uchar'>
	+ <parameter type-id='type-id-305' name='target'/>
	+ <parameter type-id='type-id-303' name='bits'/>
	+ <return type-id='type-id-303'/>
	</function-decl>
	- <function-decl name='atomic_swap_16' mangled-name='atomic_swap_16' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='302' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_16'>
	- <parameter type-id='type-id-310' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='229' column='1'/>
	- <parameter type-id='type-id-225' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='229' column='1'/>
	- <return type-id='type-id-225'/>
	+ <function-decl name='atomic_swap_16' mangled-name='atomic_swap_16' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_16'>
	+ <parameter type-id='type-id-307' name='target'/>
	+ <parameter type-id='type-id-224' name='bits'/>
	+ <return type-id='type-id-224'/>
	</function-decl>
	- <function-decl name='atomic_swap_ushort' mangled-name='atomic_swap_ushort' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='303' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_ushort'>
	- <parameter type-id='type-id-312' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='230' column='1'/>
	- <parameter type-id='type-id-228' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='230' column='1'/>
	- <return type-id='type-id-228'/>
	+ <function-decl name='atomic_swap_ushort' mangled-name='atomic_swap_ushort' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_ushort'>
	+ <parameter type-id='type-id-309' name='target'/>
	+ <parameter type-id='type-id-227' name='bits'/>
	+ <return type-id='type-id-227'/>
	</function-decl>
	- <function-decl name='atomic_swap_32' mangled-name='atomic_swap_32' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='304' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_32'>
	- <parameter type-id='type-id-314' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='231' column='1'/>
	- <parameter type-id='type-id-22' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='231' column='1'/>
	+ <function-decl name='atomic_swap_32' mangled-name='atomic_swap_32' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_32'>
	+ <parameter type-id='type-id-311' name='target'/>
	+ <parameter type-id='type-id-22' name='bits'/>
	<return type-id='type-id-22'/>
	</function-decl>
	- <function-decl name='atomic_swap_uint' mangled-name='atomic_swap_uint' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='305' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_uint'>
	- <parameter type-id='type-id-316' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='232' column='1'/>
	- <parameter type-id='type-id-34' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='232' column='1'/>
	+ <function-decl name='atomic_swap_uint' mangled-name='atomic_swap_uint' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_uint'>
	+ <parameter type-id='type-id-313' name='target'/>
	+ <parameter type-id='type-id-34' name='bits'/>
	<return type-id='type-id-34'/>
	</function-decl>
	- <function-decl name='atomic_swap_ulong' mangled-name='atomic_swap_ulong' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='306' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_ulong'>
	- <parameter type-id='type-id-318' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='233' column='1'/>
	- <parameter type-id='type-id-184' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='233' column='1'/>
	+ <function-decl name='atomic_swap_ulong' mangled-name='atomic_swap_ulong' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_ulong'>
	+ <parameter type-id='type-id-315' name='target'/>
	+ <parameter type-id='type-id-184' name='bits'/>
	<return type-id='type-id-184'/>
	</function-decl>
	- <function-decl name='atomic_swap_64' mangled-name='atomic_swap_64' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='307' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_64'>
	- <parameter type-id='type-id-320' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='234' column='1'/>
	- <parameter type-id='type-id-23' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='234' column='1'/>
	+ <function-decl name='atomic_swap_64' mangled-name='atomic_swap_64' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_64'>
	+ <parameter type-id='type-id-317' name='target'/>
	+ <parameter type-id='type-id-23' name='bits'/>
	<return type-id='type-id-23'/>
	</function-decl>
	- <function-decl name='atomic_swap_ptr' mangled-name='atomic_swap_ptr' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='311' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_ptr'>
	- <parameter type-id='type-id-145' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='311' column='1'/>
	- <parameter type-id='type-id-73' name='bits' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='311' column='1'/>
	+ <function-decl name='atomic_swap_ptr' mangled-name='atomic_swap_ptr' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_swap_ptr'>
	+ <parameter type-id='type-id-132' name='target'/>
	+ <parameter type-id='type-id-73' name='bits'/>
	<return type-id='type-id-73'/>
	</function-decl>
	- <function-decl name='atomic_set_long_excl' mangled-name='atomic_set_long_excl' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='318' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_set_long_excl'>
	- <parameter type-id='type-id-318' name='target' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='318' column='1'/>
	- <parameter type-id='type-id-34' name='value' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/atomic.c' line='318' column='1'/>
	+ <function-decl name='atomic_set_long_excl' mangled-name='atomic_set_long_excl' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_set_long_excl'>
	+ <parameter type-id='type-id-315' name='target'/>
	+ <parameter type-id='type-id-34' name='value'/>
	<return type-id='type-id-1'/>
	</function-decl>
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	- <parameter type-id='type-id-73' name='object' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/list.c' line='86' column='1'/>
	- <parameter type-id='type-id-73' name='nobject' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/list.c' line='86' column='1'/>
	+ <function-decl name='list_insert_before' mangled-name='list_insert_before' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_insert_before'>
	+ <parameter type-id='type-id-357' name='list'/>
	+ <parameter type-id='type-id-73' name='object'/>
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	- <parameter type-id='type-id-73' name='object' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/list.c' line='108' column='1'/>
	+ <function-decl name='list_insert_tail' mangled-name='list_insert_tail' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_insert_tail'>
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	</function-decl>
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	- <parameter type-id='type-id-73' name='object' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/list.c' line='122' column='1'/>
	+ <function-decl name='list_remove' mangled-name='list_remove' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_remove'>
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	+ <parameter type-id='type-id-73' name='object'/>
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	</function-decl>
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	- <parameter type-id='type-id-361' name='list' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/list.c' line='131' column='1'/>
	+ <function-decl name='list_remove_head' mangled-name='list_remove_head' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_remove_head'>
	+ <parameter type-id='type-id-357' name='list'/>
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	- <parameter type-id='type-id-361' name='list' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/list.c' line='131' column='1'/>
	+ <function-decl name='list_remove_tail' mangled-name='list_remove_tail' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_remove_tail'>
	+ <parameter type-id='type-id-357' name='list'/>
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	- <parameter type-id='type-id-361' name='list' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/list.c' line='151' column='1'/>
	+ <function-decl name='list_head' mangled-name='list_head' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_head'>
	+ <parameter type-id='type-id-357' name='list'/>
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	- <parameter type-id='type-id-361' name='list' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/list.c' line='151' column='1'/>
	+ <function-decl name='list_tail' mangled-name='list_tail' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_tail'>
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	- <parameter type-id='type-id-73' name='object' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/list.c' line='167' column='1'/>
	+ <function-decl name='list_next' mangled-name='list_next' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_next'>
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	- <parameter type-id='type-id-73' name='object' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/list.c' line='167' column='1'/>
	+ <function-decl name='list_prev' mangled-name='list_prev' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_prev'>
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	- <parameter type-id='type-id-361' name='src' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/list.c' line='192' column='1'/>
	+ <function-decl name='list_move_tail' mangled-name='list_move_tail' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_move_tail'>
	+ <parameter type-id='type-id-357' name='dst'/>
	+ <parameter type-id='type-id-357' name='src'/>
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	</function-decl>
	- <typedef-decl name='list_node_t' type-id='type-id-358' filepath='../../lib/libspl/include/sys/list.h' line='35' column='1' id='type-id-362'/>
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	- <parameter type-id='type-id-363' name='lold' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/list.c' line='213' column='1'/>
	- <parameter type-id='type-id-363' name='lnew' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/list.c' line='213' column='1'/>
	+ <typedef-decl name='list_node_t' type-id='type-id-354' id='type-id-358'/>
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	+ <function-decl name='list_link_replace' mangled-name='list_link_replace' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_link_replace'>
	+ <parameter type-id='type-id-359' name='lold'/>
	+ <parameter type-id='type-id-359' name='lnew'/>
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	- <parameter type-id='type-id-363' name='ln' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/list.c' line='226' column='1'/>
	+ <function-decl name='list_link_init' mangled-name='list_link_init' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_link_init'>
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	<return type-id='type-id-17'/>
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	- <parameter type-id='type-id-363' name='ln' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/list.c' line='233' column='1'/>
	+ <function-decl name='list_link_active' mangled-name='list_link_active' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_link_active'>
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	<return type-id='type-id-1'/>
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	- <parameter type-id='type-id-361' name='list' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/list.c' line='240' column='1'/>
	+ <function-decl name='list_is_empty' mangled-name='list_is_empty' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_is_empty'>
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	- <function-decl name='mkdirp' mangled-name='mkdirp' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl/mkdirp.c' line='50' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mkdirp'>
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	+ <function-decl name='mbstowcs' visibility='default' binding='global' size-in-bits='64'>
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	- <function-decl name='mkdir' filepath='/usr/include/x86_64-linux-gnu/sys/stat.h' line='317' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='mkdir' visibility='default' binding='global' size-in-bits='64'>
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	<parameter type-id='type-id-6'/>
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	</data-member>
	<data-member access='public' layout-offset-in-bits='64'>
	- <var-decl name='tm_hour' type-id='type-id-1' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/types/struct_tm.h' line='11' column='1'/>
	+ <var-decl name='tm_hour' type-id='type-id-1' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='96'>
	- <var-decl name='tm_mday' type-id='type-id-1' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/types/struct_tm.h' line='12' column='1'/>
	+ <var-decl name='tm_mday' type-id='type-id-1' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='128'>
	- <var-decl name='tm_mon' type-id='type-id-1' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/types/struct_tm.h' line='13' column='1'/>
	+ <var-decl name='tm_mon' type-id='type-id-1' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='160'>
	- <var-decl name='tm_year' type-id='type-id-1' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/types/struct_tm.h' line='14' column='1'/>
	+ <var-decl name='tm_year' type-id='type-id-1' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='192'>
	- <var-decl name='tm_wday' type-id='type-id-1' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/types/struct_tm.h' line='15' column='1'/>
	+ <var-decl name='tm_wday' type-id='type-id-1' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='224'>
	- <var-decl name='tm_yday' type-id='type-id-1' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/types/struct_tm.h' line='16' column='1'/>
	+ <var-decl name='tm_yday' type-id='type-id-1' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='256'>
	- <var-decl name='tm_isdst' type-id='type-id-1' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/types/struct_tm.h' line='17' column='1'/>
	+ <var-decl name='tm_isdst' type-id='type-id-1' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='320'>
	- <var-decl name='tm_gmtoff' type-id='type-id-5' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/types/struct_tm.h' line='20' column='1'/>
	+ <var-decl name='tm_gmtoff' type-id='type-id-5' visibility='default'/>
	</data-member>
	<data-member access='public' layout-offset-in-bits='384'>
	- <var-decl name='tm_zone' type-id='type-id-16' visibility='default' filepath='/usr/include/x86_64-linux-gnu/bits/types/struct_tm.h' line='21' column='1'/>
	+ <var-decl name='tm_zone' type-id='type-id-16' visibility='default'/>
	</data-member>
	</class-decl>
	+ <pointer-type-def type-id='type-id-364' size-in-bits='64' id='type-id-365'/>
	+ <qualified-type-def type-id='type-id-5' const='yes' id='type-id-366'/>
	+ <pointer-type-def type-id='type-id-366' size-in-bits='64' id='type-id-367'/>
	+ <function-decl name='localtime' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-367'/>
	+ <return type-id='type-id-365'/>
	+ </function-decl>
	+ <qualified-type-def type-id='type-id-364' const='yes' id='type-id-368'/>
	<pointer-type-def type-id='type-id-368' size-in-bits='64' id='type-id-369'/>
	- <qualified-type-def type-id='type-id-5' const='yes' id='type-id-370'/>
	- <pointer-type-def type-id='type-id-370' size-in-bits='64' id='type-id-371'/>
	- <function-decl name='localtime' filepath='/usr/include/time.h' line='123' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-371'/>
	- <return type-id='type-id-369'/>
	- </function-decl>
	- <qualified-type-def type-id='type-id-368' const='yes' id='type-id-372'/>
	- <pointer-type-def type-id='type-id-372' size-in-bits='64' id='type-id-373'/>
	- <function-decl name='strftime' filepath='/usr/include/time.h' line='88' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='strftime' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-37'/>
	<parameter type-id='type-id-26'/>
	<parameter type-id='type-id-16'/>
	- <parameter type-id='type-id-373'/>
	+ <parameter type-id='type-id-369'/>
	<return type-id='type-id-26'/>
	</function-decl>
	</abi-instr>
	- <abi-instr version='1.0' address-size='64' path='os/linux/zone.c' comp-dir-path='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libspl' language='LANG_C99'>
	- <typedef-decl name='zoneid_t' type-id='type-id-1' filepath='../../lib/libspl/include/sys/types.h' line='47' column='1' id='type-id-374'/>
	- <function-decl name='getzoneid' mangled-name='getzoneid' filepath='os/linux/zone.c' line='29' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='getzoneid'>
	- <return type-id='type-id-374'/>
	+ <abi-instr version='1.0' address-size='64' path='os/linux/zone.c' comp-dir-path='/home/nabijaczleweli/store/code/zfs/lib/libspl' language='LANG_C99'>
	+ <typedef-decl name='zoneid_t' type-id='type-id-1' id='type-id-370'/>
	+ <function-decl name='getzoneid' mangled-name='getzoneid' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='getzoneid'>
	+ <return type-id='type-id-370'/>
	</function-decl>
	</abi-instr>
	- <abi-instr version='1.0' address-size='64' path='rdwr_efi.c' comp-dir-path='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi' language='LANG_C99'>
	- <class-decl name='dk_map2' size-in-bits='32' is-struct='yes' visibility='default' filepath='../../lib/libspl/include/sys/dklabel.h' line='102' column='1' id='type-id-375'>
	- <data-member access='public' layout-offset-in-bits='0'>
	- <var-decl name='p_tag' type-id='type-id-225' visibility='default' filepath='../../lib/libspl/include/sys/dklabel.h' line='103' column='1'/>
	- </data-member>
	- <data-member access='public' layout-offset-in-bits='16'>
	- <var-decl name='p_flag' type-id='type-id-225' visibility='default' filepath='../../lib/libspl/include/sys/dklabel.h' line='104' column='1'/>
	- </data-member>
	- </class-decl>
	-
	- <array-type-def dimensions='1' type-id='type-id-375' size-in-bits='512' id='type-id-376'>
	- <subrange length='16' type-id='type-id-12' id='type-id-104'/>
	-
	- </array-type-def>
	- <var-decl name='default_vtoc_map' type-id='type-id-376' mangled-name='default_vtoc_map' visibility='default' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='146' column='1' elf-symbol-id='default_vtoc_map'/>
	- <var-decl name='efi_debug' type-id='type-id-1' mangled-name='efi_debug' visibility='default' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='177' column='1' elf-symbol-id='efi_debug'/>
	- <function-decl name='efi_alloc_and_init' mangled-name='efi_alloc_and_init' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='376' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_alloc_and_init'>
	- <parameter type-id='type-id-1' name='fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='376' column='1'/>
	- <parameter type-id='type-id-22' name='nparts' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='376' column='1'/>
	- <parameter type-id='type-id-234' name='vtoc' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='376' column='1'/>
	+ <abi-instr version='1.0' address-size='64' path='rdwr_efi.c' comp-dir-path='/home/nabijaczleweli/store/code/zfs/lib/libefi' language='LANG_C99'>
	+ <var-decl name='efi_debug' type-id='type-id-1' mangled-name='efi_debug' visibility='default' elf-symbol-id='efi_debug'/>
	+ <function-decl name='efi_alloc_and_init' mangled-name='efi_alloc_and_init' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_alloc_and_init'>
	+ <parameter type-id='type-id-1' name='fd'/>
	+ <parameter type-id='type-id-22' name='nparts'/>
	+ <parameter type-id='type-id-233' name='vtoc'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='uuid_generate' filepath='/usr/include/uuid/uuid.h' line='90' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='uuid_generate' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-36'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='efi_alloc_and_read' mangled-name='efi_alloc_and_read' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='446' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_alloc_and_read'>
	- <parameter type-id='type-id-1' name='fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='446' column='1'/>
	- <parameter type-id='type-id-234' name='vtoc' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='446' column='1'/>
	+ <function-decl name='efi_alloc_and_read' mangled-name='efi_alloc_and_read' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_alloc_and_read'>
	+ <parameter type-id='type-id-1' name='fd'/>
	+ <parameter type-id='type-id-233' name='vtoc'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='efi_rescan' mangled-name='efi_rescan' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='608' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_rescan'>
	- <parameter type-id='type-id-1' name='fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='608' column='1'/>
	+ <function-decl name='efi_rescan' mangled-name='efi_rescan' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_rescan'>
	+ <parameter type-id='type-id-1' name='fd'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='efi_use_whole_disk' mangled-name='efi_use_whole_disk' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='1161' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_use_whole_disk'>
	- <parameter type-id='type-id-1' name='fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='1161' column='1'/>
	+ <function-decl name='efi_use_whole_disk' mangled-name='efi_use_whole_disk' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_use_whole_disk'>
	+ <parameter type-id='type-id-1' name='fd'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='efi_write' mangled-name='efi_write' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='1377' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_write'>
	- <parameter type-id='type-id-1' name='fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='1377' column='1'/>
	- <parameter type-id='type-id-233' name='vtoc' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='1377' column='1'/>
	+ <function-decl name='efi_write' mangled-name='efi_write' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_write'>
	+ <parameter type-id='type-id-1' name='fd'/>
	+ <parameter type-id='type-id-232' name='vtoc'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <qualified-type-def type-id='type-id-30' const='yes' id='type-id-377'/>
	- <pointer-type-def type-id='type-id-377' size-in-bits='64' id='type-id-378'/>
	- <function-decl name='uuid_is_null' filepath='/usr/include/uuid/uuid.h' line='99' column='1' visibility='default' binding='global' size-in-bits='64'>
	- <parameter type-id='type-id-378'/>
	+ <qualified-type-def type-id='type-id-30' const='yes' id='type-id-371'/>
	+ <pointer-type-def type-id='type-id-371' size-in-bits='64' id='type-id-372'/>
	+ <function-decl name='uuid_is_null' visibility='default' binding='global' size-in-bits='64'>
	+ <parameter type-id='type-id-372'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='crc32' filepath='/usr/include/zlib.h' line='1725' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='crc32' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-26'/>
	- <parameter type-id='type-id-378'/>
	+ <parameter type-id='type-id-372'/>
	<parameter type-id='type-id-6'/>
	<return type-id='type-id-26'/>
	</function-decl>
	- <function-decl name='lseek' mangled-name='lseek64' filepath='/usr/include/unistd.h' line='337' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='lseek' mangled-name='lseek64' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-1'/>
	<parameter type-id='type-id-5'/>
	<parameter type-id='type-id-1'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='write' filepath='/usr/include/unistd.h' line='366' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='write' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-1'/>
	<parameter type-id='type-id-73'/>
	<parameter type-id='type-id-26'/>
	<return type-id='type-id-5'/>
	</function-decl>
	- <function-decl name='fsync' filepath='/usr/include/unistd.h' line='954' column='1' visibility='default' binding='global' size-in-bits='64'>
	+ <function-decl name='fsync' visibility='default' binding='global' size-in-bits='64'>
	<parameter type-id='type-id-1'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='efi_type' mangled-name='efi_type' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='1591' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_type'>
	+ <function-decl name='efi_type' mangled-name='efi_type' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_type'>
	<parameter type-id='type-id-1'/>
	<return type-id='type-id-1'/>
	</function-decl>
	- <function-decl name='efi_err_check' mangled-name='efi_err_check' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='1613' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_err_check'>
	- <parameter type-id='type-id-233' name='vtoc' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='1613' column='1'/>
	+ <function-decl name='efi_err_check' mangled-name='efi_err_check' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_err_check'>
	+ <parameter type-id='type-id-232' name='vtoc'/>
	<return type-id='type-id-17'/>
	</function-decl>
	- <function-decl name='efi_auto_sense' mangled-name='efi_auto_sense' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='1708' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='efi_auto_sense'>
	- <parameter type-id='type-id-1' name='fd' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='1708' column='1'/>
	- <parameter type-id='type-id-234' name='vtoc' filepath='/mnt/filling/store/nabijaczleweli/code/zfs/lib/libefi/rdwr_efi.c' line='1708' column='1'/>
	- <return type-id='type-id-1'/>
	- </function-decl>
	</abi-instr>
	</abi-corpus>
	diff --git a/sys/contrib/openzfs/lib/libzfsbootenv/Makefile.am b/sys/contrib/openzfs/lib/libzfsbootenv/Makefile.am
	index 984df0b8a353..0c454a5e031b 100644
	--- a/sys/contrib/openzfs/lib/libzfsbootenv/Makefile.am
	+++ b/sys/contrib/openzfs/lib/libzfsbootenv/Makefile.am
	@@ -1,39 +1,41 @@
	include $(top_srcdir)/config/Rules.am

	pkgconfig_DATA = libzfsbootenv.pc

	+AM_CFLAGS += -fvisibility=hidden
	+
	lib_LTLIBRARIES = libzfsbootenv.la

	include $(top_srcdir)/config/Abigail.am

	if BUILD_FREEBSD
	DEFAULT_INCLUDES += -I$(top_srcdir)/include/os/freebsd/zfs
	endif
	if BUILD_LINUX
	DEFAULT_INCLUDES += -I$(top_srcdir)/include/os/linux/zfs
	endif

	USER_C = \
	lzbe_device.c \
	lzbe_pair.c \
	lzbe_util.c

	dist_libzfsbootenv_la_SOURCES = \
	$(USER_C)

	libzfsbootenv_la_LIBADD = \
	$(abs_top_builddir)/lib/libzfs/libzfs.la \
	$(abs_top_builddir)/lib/libnvpair/libnvpair.la

	libzfsbootenv_la_LDFLAGS =

	if !ASAN_ENABLED
	libzfsbootenv_la_LDFLAGS += -Wl,-z,defs
	endif

	libzfsbootenv_la_LDFLAGS += -version-info 1:0:0

	include $(top_srcdir)/config/CppCheck.am

	# Library ABI
	EXTRA_DIST = libzfsbootenv.abi libzfsbootenv.suppr
	diff --git a/sys/contrib/openzfs/lib/libzpool/kernel.c b/sys/contrib/openzfs/lib/libzpool/kernel.c
	index e96a1d7521d9..836eb176e13d 100644
	--- a/sys/contrib/openzfs/lib/libzpool/kernel.c
	+++ b/sys/contrib/openzfs/lib/libzpool/kernel.c
	@@ -1,1417 +1,1379 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	* Copyright (c) 2016 Actifio, Inc. All rights reserved.
	*/

	#include <assert.h>
	#include <fcntl.h>
	#include <libgen.h>
	#include <poll.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	+#include <libzutil.h>
	#include <sys/crypto/icp.h>
	#include <sys/processor.h>
	#include <sys/rrwlock.h>
	#include <sys/spa.h>
	#include <sys/stat.h>
	#include <sys/systeminfo.h>
	#include <sys/time.h>
	#include <sys/utsname.h>
	#include <sys/zfs_context.h>
	#include <sys/zfs_onexit.h>
	#include <sys/zfs_vfsops.h>
	#include <sys/zstd/zstd.h>
	#include <sys/zvol.h>
	#include <zfs_fletcher.h>
	#include <zlib.h>

	/*
	* Emulation of kernel services in userland.
	*/

	uint64_t physmem;
	char hw_serial[HW_HOSTID_LEN];
	struct utsname hw_utsname;

	/* If set, all blocks read will be copied to the specified directory. */
	char *vn_dumpdir = NULL;

	/* this only exists to have its address taken */
	struct proc p0;

	/*
	* =========================================================================
	* threads
	* =========================================================================
	*
	* TS_STACK_MIN is dictated by the minimum allowed pthread stack size. While
	* TS_STACK_MAX is somewhat arbitrary, it was selected to be large enough for
	* the expected stack depth while small enough to avoid exhausting address
	* space with high thread counts.
	*/
	#define TS_STACK_MIN MAX(PTHREAD_STACK_MIN, 32768)
	#define TS_STACK_MAX (256 * 1024)

	/ARGSUSED/
	kthread_t *
	zk_thread_create(void (func)(void ), void *arg, size_t stksize, int state)
	{
	pthread_attr_t attr;
	pthread_t tid;
	char *stkstr;
	int detachstate = PTHREAD_CREATE_DETACHED;

	VERIFY0(pthread_attr_init(&attr));

	if (state & TS_JOINABLE)
	detachstate = PTHREAD_CREATE_JOINABLE;

	VERIFY0(pthread_attr_setdetachstate(&attr, detachstate));

	/*
	* We allow the default stack size in user space to be specified by
	* setting the ZFS_STACK_SIZE environment variable. This allows us
	* the convenience of observing and debugging stack overruns in
	* user space. Explicitly specified stack sizes will be honored.
	* The usage of ZFS_STACK_SIZE is discussed further in the
	* ENVIRONMENT VARIABLES sections of the ztest(1) man page.
	*/
	if (stksize == 0) {
	stkstr = getenv("ZFS_STACK_SIZE");

	if (stkstr == NULL)
	stksize = TS_STACK_MAX;
	else
	stksize = MAX(atoi(stkstr), TS_STACK_MIN);
	}

	VERIFY3S(stksize, >, 0);
	stksize = P2ROUNDUP(MAX(stksize, TS_STACK_MIN), PAGESIZE);

	/*
	* If this ever fails, it may be because the stack size is not a
	* multiple of system page size.
	*/
	VERIFY0(pthread_attr_setstacksize(&attr, stksize));
	VERIFY0(pthread_attr_setguardsize(&attr, PAGESIZE));

	VERIFY0(pthread_create(&tid, &attr, (void ()(void *))func, arg));
	VERIFY0(pthread_attr_destroy(&attr));

	return ((void *)(uintptr_t)tid);
	}

	/*
	* =========================================================================
	* kstats
	* =========================================================================
	*/
	/ARGSUSED/
	kstat_t *
	kstat_create(const char module, int instance, const char name,
	const char *class, uchar_t type, ulong_t ndata, uchar_t ks_flag)
	{
	return (NULL);
	}

	/ARGSUSED/
	void
	kstat_install(kstat_t *ksp)
	{}

	/ARGSUSED/
	void
	kstat_delete(kstat_t *ksp)
	{}

	-/ARGSUSED/
	-void
	-kstat_waitq_enter(kstat_io_t *kiop)
	-{}
	-
	-/ARGSUSED/
	-void
	-kstat_waitq_exit(kstat_io_t *kiop)
	-{}
	-
	-/ARGSUSED/
	-void
	-kstat_runq_enter(kstat_io_t *kiop)
	-{}
	-
	-/ARGSUSED/
	-void
	-kstat_runq_exit(kstat_io_t *kiop)
	-{}
	-
	-/ARGSUSED/
	-void
	-kstat_waitq_to_runq(kstat_io_t *kiop)
	-{}
	-
	-/ARGSUSED/
	-void
	-kstat_runq_back_to_waitq(kstat_io_t *kiop)
	-{}
	-
	void
	kstat_set_raw_ops(kstat_t *ksp,
	int (headers)(char buf, size_t size),
	int (data)(char buf, size_t size, void *data),
	void (addr)(kstat_t *ksp, loff_t index))
	{}

	/*
	* =========================================================================
	* mutexes
	* =========================================================================
	*/

	void
	mutex_init(kmutex_t mp, char name, int type, void *cookie)
	{
	VERIFY0(pthread_mutex_init(&mp->m_lock, NULL));
	memset(&mp->m_owner, 0, sizeof (pthread_t));
	}

	void
	mutex_destroy(kmutex_t *mp)
	{
	VERIFY0(pthread_mutex_destroy(&mp->m_lock));
	}

	void
	mutex_enter(kmutex_t *mp)
	{
	VERIFY0(pthread_mutex_lock(&mp->m_lock));
	mp->m_owner = pthread_self();
	}

	int
	mutex_tryenter(kmutex_t *mp)
	{
	int error;

	error = pthread_mutex_trylock(&mp->m_lock);
	if (error == 0) {
	mp->m_owner = pthread_self();
	return (1);
	} else {
	VERIFY3S(error, ==, EBUSY);
	return (0);
	}
	}

	void
	mutex_exit(kmutex_t *mp)
	{
	memset(&mp->m_owner, 0, sizeof (pthread_t));
	VERIFY0(pthread_mutex_unlock(&mp->m_lock));
	}

	/*
	* =========================================================================
	* rwlocks
	* =========================================================================
	*/

	void
	rw_init(krwlock_t rwlp, char name, int type, void *arg)
	{
	VERIFY0(pthread_rwlock_init(&rwlp->rw_lock, NULL));
	rwlp->rw_readers = 0;
	rwlp->rw_owner = 0;
	}

	void
	rw_destroy(krwlock_t *rwlp)
	{
	VERIFY0(pthread_rwlock_destroy(&rwlp->rw_lock));
	}

	void
	rw_enter(krwlock_t *rwlp, krw_t rw)
	{
	if (rw == RW_READER) {
	VERIFY0(pthread_rwlock_rdlock(&rwlp->rw_lock));
	atomic_inc_uint(&rwlp->rw_readers);
	} else {
	VERIFY0(pthread_rwlock_wrlock(&rwlp->rw_lock));
	rwlp->rw_owner = pthread_self();
	}
	}

	void
	rw_exit(krwlock_t *rwlp)
	{
	if (RW_READ_HELD(rwlp))
	atomic_dec_uint(&rwlp->rw_readers);
	else
	rwlp->rw_owner = 0;

	VERIFY0(pthread_rwlock_unlock(&rwlp->rw_lock));
	}

	int
	rw_tryenter(krwlock_t *rwlp, krw_t rw)
	{
	int error;

	if (rw == RW_READER)
	error = pthread_rwlock_tryrdlock(&rwlp->rw_lock);
	else
	error = pthread_rwlock_trywrlock(&rwlp->rw_lock);

	if (error == 0) {
	if (rw == RW_READER)
	atomic_inc_uint(&rwlp->rw_readers);
	else
	rwlp->rw_owner = pthread_self();

	return (1);
	}

	VERIFY3S(error, ==, EBUSY);

	return (0);
	}

	/* ARGSUSED */
	uint32_t
	zone_get_hostid(void *zonep)
	{
	/*
	* We're emulating the system's hostid in userland.
	*/
	return (strtoul(hw_serial, NULL, 10));
	}

	int
	rw_tryupgrade(krwlock_t *rwlp)
	{
	return (0);
	}

	/*
	* =========================================================================
	* condition variables
	* =========================================================================
	*/

	void
	cv_init(kcondvar_t cv, char name, int type, void *arg)
	{
	VERIFY0(pthread_cond_init(cv, NULL));
	}

	void
	cv_destroy(kcondvar_t *cv)
	{
	VERIFY0(pthread_cond_destroy(cv));
	}

	void
	cv_wait(kcondvar_t cv, kmutex_t mp)
	{
	memset(&mp->m_owner, 0, sizeof (pthread_t));
	VERIFY0(pthread_cond_wait(cv, &mp->m_lock));
	mp->m_owner = pthread_self();
	}

	int
	cv_wait_sig(kcondvar_t cv, kmutex_t mp)
	{
	cv_wait(cv, mp);
	return (1);
	}

	int
	cv_timedwait(kcondvar_t cv, kmutex_t mp, clock_t abstime)
	{
	int error;
	struct timeval tv;
	struct timespec ts;
	clock_t delta;

	delta = abstime - ddi_get_lbolt();
	if (delta <= 0)
	return (-1);

	VERIFY(gettimeofday(&tv, NULL) == 0);

	ts.tv_sec = tv.tv_sec + delta / hz;
	ts.tv_nsec = tv.tv_usec * NSEC_PER_USEC + (delta % hz) * (NANOSEC / hz);
	if (ts.tv_nsec >= NANOSEC) {
	ts.tv_sec++;
	ts.tv_nsec -= NANOSEC;
	}

	memset(&mp->m_owner, 0, sizeof (pthread_t));
	error = pthread_cond_timedwait(cv, &mp->m_lock, &ts);
	mp->m_owner = pthread_self();

	if (error == ETIMEDOUT)
	return (-1);

	VERIFY0(error);

	return (1);
	}

	/ARGSUSED/
	int
	cv_timedwait_hires(kcondvar_t cv, kmutex_t mp, hrtime_t tim, hrtime_t res,
	int flag)
	{
	int error;
	struct timeval tv;
	struct timespec ts;
	hrtime_t delta;

	ASSERT(flag == 0 \|\| flag == CALLOUT_FLAG_ABSOLUTE);

	delta = tim;
	if (flag & CALLOUT_FLAG_ABSOLUTE)
	delta -= gethrtime();

	if (delta <= 0)
	return (-1);

	VERIFY0(gettimeofday(&tv, NULL));

	ts.tv_sec = tv.tv_sec + delta / NANOSEC;
	ts.tv_nsec = tv.tv_usec * NSEC_PER_USEC + (delta % NANOSEC);
	if (ts.tv_nsec >= NANOSEC) {
	ts.tv_sec++;
	ts.tv_nsec -= NANOSEC;
	}

	memset(&mp->m_owner, 0, sizeof (pthread_t));
	error = pthread_cond_timedwait(cv, &mp->m_lock, &ts);
	mp->m_owner = pthread_self();

	if (error == ETIMEDOUT)
	return (-1);

	VERIFY0(error);

	return (1);
	}

	void
	cv_signal(kcondvar_t *cv)
	{
	VERIFY0(pthread_cond_signal(cv));
	}

	void
	cv_broadcast(kcondvar_t *cv)
	{
	VERIFY0(pthread_cond_broadcast(cv));
	}

	/*
	* =========================================================================
	* procfs list
	* =========================================================================
	*/

	void
	seq_printf(struct seq_file m, const char fmt, ...)
	{}

	void
	procfs_list_install(const char *module,
	const char *submodule,
	const char *name,
	mode_t mode,
	procfs_list_t *procfs_list,
	int (show)(struct seq_file f, void *p),
	int (show_header)(struct seq_file f),
	int (clear)(procfs_list_t procfs_list),
	size_t procfs_list_node_off)
	{
	mutex_init(&procfs_list->pl_lock, NULL, MUTEX_DEFAULT, NULL);
	list_create(&procfs_list->pl_list,
	procfs_list_node_off + sizeof (procfs_list_node_t),
	procfs_list_node_off + offsetof(procfs_list_node_t, pln_link));
	procfs_list->pl_next_id = 1;
	procfs_list->pl_node_offset = procfs_list_node_off;
	}

	void
	procfs_list_uninstall(procfs_list_t *procfs_list)
	{}

	void
	procfs_list_destroy(procfs_list_t *procfs_list)
	{
	ASSERT(list_is_empty(&procfs_list->pl_list));
	list_destroy(&procfs_list->pl_list);
	mutex_destroy(&procfs_list->pl_lock);
	}

	#define NODE_ID(procfs_list, obj) \
	(((procfs_list_node_t )(((char )obj) + \
	(procfs_list)->pl_node_offset))->pln_id)

	void
	procfs_list_add(procfs_list_t procfs_list, void p)
	{
	ASSERT(MUTEX_HELD(&procfs_list->pl_lock));
	NODE_ID(procfs_list, p) = procfs_list->pl_next_id++;
	list_insert_tail(&procfs_list->pl_list, p);
	}

	/*
	* =========================================================================
	* vnode operations
	* =========================================================================
	*/

	/*
	* =========================================================================
	* Figure out which debugging statements to print
	* =========================================================================
	*/

	static char *dprintf_string;
	static int dprintf_print_all;

	int
	dprintf_find_string(const char *string)
	{
	char *tmp_str = dprintf_string;
	int len = strlen(string);

	/*
	* Find out if this is a string we want to print.
	* String format: file1.c,function_name1,file2.c,file3.c
	*/

	while (tmp_str != NULL) {
	if (strncmp(tmp_str, string, len) == 0 &&
	(tmp_str[len] == ',' \|\| tmp_str[len] == '\0'))
	return (1);
	tmp_str = strchr(tmp_str, ',');
	if (tmp_str != NULL)
	tmp_str++; /* Get rid of , */
	}
	return (0);
	}

	void
	dprintf_setup(int argc, char *argv)
	{
	int i, j;

	/*
	* Debugging can be specified two ways: by setting the
	* environment variable ZFS_DEBUG, or by including a
	* "debug=..." argument on the command line. The command
	* line setting overrides the environment variable.
	*/

	for (i = 1; i < *argc; i++) {
	int len = strlen("debug=");
	/* First look for a command line argument */
	if (strncmp("debug=", argv[i], len) == 0) {
	dprintf_string = argv[i] + len;
	/* Remove from args */
	for (j = i; j < *argc; j++)
	argv[j] = argv[j+1];
	argv[j] = NULL;
	(*argc)--;
	}
	}

	if (dprintf_string == NULL) {
	/* Look for ZFS_DEBUG environment variable */
	dprintf_string = getenv("ZFS_DEBUG");
	}

	/*
	* Are we just turning on all debugging?
	*/
	if (dprintf_find_string("on"))
	dprintf_print_all = 1;

	if (dprintf_string != NULL)
	zfs_flags \|= ZFS_DEBUG_DPRINTF;
	}

	/*
	* =========================================================================
	* debug printfs
	* =========================================================================
	*/
	void
	__dprintf(boolean_t dprint, const char file, const char func,
	int line, const char *fmt, ...)
	{
	- const char *newfile;
	- va_list adx;
	-
	- /*
	- * Get rid of annoying "../common/" prefix to filename.
	- */
	- newfile = strrchr(file, '/');
	- if (newfile != NULL) {
	- newfile = newfile + 1; /* Get rid of leading / */
	- } else {
	- newfile = file;
	- }
	+ /* Get rid of annoying "../common/" prefix to filename. */
	+ const char *newfile = zfs_basename(file);

	+ va_list adx;
	if (dprint) {
	/* dprintf messages are printed immediately */

	if (!dprintf_print_all &&
	!dprintf_find_string(newfile) &&
	!dprintf_find_string(func))
	return;

	/* Print out just the function name if requested */
	flockfile(stdout);
	if (dprintf_find_string("pid"))
	(void) printf("%d ", getpid());
	if (dprintf_find_string("tid"))
	(void) printf("%ju ",
	(uintmax_t)(uintptr_t)pthread_self());
	if (dprintf_find_string("cpu"))
	(void) printf("%u ", getcpuid());
	if (dprintf_find_string("time"))
	(void) printf("%llu ", gethrtime());
	if (dprintf_find_string("long"))
	(void) printf("%s, line %d: ", newfile, line);
	(void) printf("dprintf: %s: ", func);
	va_start(adx, fmt);
	(void) vprintf(fmt, adx);
	va_end(adx);
	funlockfile(stdout);
	} else {
	/* zfs_dbgmsg is logged for dumping later */
	size_t size;
	char *buf;
	int i;

	size = 1024;
	buf = umem_alloc(size, UMEM_NOFAIL);
	i = snprintf(buf, size, "%s:%d:%s(): ", newfile, line, func);

	if (i < size) {
	va_start(adx, fmt);
	(void) vsnprintf(buf + i, size - i, fmt, adx);
	va_end(adx);
	}

	__zfs_dbgmsg(buf);

	umem_free(buf, size);
	}
	}

	/*
	* =========================================================================
	* cmn_err() and panic()
	* =========================================================================
	*/
	static char ce_prefix[CE_IGNORE][10] = { "", "NOTICE: ", "WARNING: ", "" };
	static char ce_suffix[CE_IGNORE][2] = { "", "\n", "\n", "" };

	void
	vpanic(const char *fmt, va_list adx)
	{
	(void) fprintf(stderr, "error: ");
	(void) vfprintf(stderr, fmt, adx);
	(void) fprintf(stderr, "\n");

	abort(); /* think of it as a "user-level crash dump" */
	}

	void
	panic(const char *fmt, ...)
	{
	va_list adx;

	va_start(adx, fmt);
	vpanic(fmt, adx);
	va_end(adx);
	}

	void
	vcmn_err(int ce, const char *fmt, va_list adx)
	{
	if (ce == CE_PANIC)
	vpanic(fmt, adx);
	if (ce != CE_NOTE) { /* suppress noise in userland stress testing */
	(void) fprintf(stderr, "%s", ce_prefix[ce]);
	(void) vfprintf(stderr, fmt, adx);
	(void) fprintf(stderr, "%s", ce_suffix[ce]);
	}
	}

	/PRINTFLIKE2/
	void
	cmn_err(int ce, const char *fmt, ...)
	{
	va_list adx;

	va_start(adx, fmt);
	vcmn_err(ce, fmt, adx);
	va_end(adx);
	}

	/*
	* =========================================================================
	* misc routines
	* =========================================================================
	*/

	void
	delay(clock_t ticks)
	{
	(void) poll(0, 0, ticks * (1000 / hz));
	}

	/*
	* Find highest one bit set.
	* Returns bit number + 1 of highest bit that is set, otherwise returns 0.
	* The __builtin_clzll() function is supported by both GCC and Clang.
	*/
	int
	highbit64(uint64_t i)
	{
	if (i == 0)
	return (0);

	return (NBBY * sizeof (uint64_t) - __builtin_clzll(i));
	}

	/*
	* Find lowest one bit set.
	* Returns bit number + 1 of lowest bit that is set, otherwise returns 0.
	* The __builtin_ffsll() function is supported by both GCC and Clang.
	*/
	int
	lowbit64(uint64_t i)
	{
	if (i == 0)
	return (0);

	return (__builtin_ffsll(i));
	}

	const char *random_path = "/dev/random";
	const char *urandom_path = "/dev/urandom";
	static int random_fd = -1, urandom_fd = -1;

	void
	random_init(void)
	{
	VERIFY((random_fd = open(random_path, O_RDONLY \| O_CLOEXEC)) != -1);
	VERIFY((urandom_fd = open(urandom_path, O_RDONLY \| O_CLOEXEC)) != -1);
	}

	void
	random_fini(void)
	{
	close(random_fd);
	close(urandom_fd);

	random_fd = -1;
	urandom_fd = -1;
	}

	static int
	random_get_bytes_common(uint8_t *ptr, size_t len, int fd)
	{
	size_t resid = len;
	ssize_t bytes;

	ASSERT(fd != -1);

	while (resid != 0) {
	bytes = read(fd, ptr, resid);
	ASSERT3S(bytes, >=, 0);
	ptr += bytes;
	resid -= bytes;
	}

	return (0);
	}

	int
	random_get_bytes(uint8_t *ptr, size_t len)
	{
	return (random_get_bytes_common(ptr, len, random_fd));
	}

	int
	random_get_pseudo_bytes(uint8_t *ptr, size_t len)
	{
	return (random_get_bytes_common(ptr, len, urandom_fd));
	}

	int
	ddi_strtoul(const char hw_serial, char nptr, int base, unsigned long result)
	{
	char *end;

	*result = strtoul(hw_serial, &end, base);
	if (*result == 0)
	return (errno);
	return (0);
	}

	int
	ddi_strtoull(const char str, char nptr, int base, u_longlong_t result)
	{
	char *end;

	*result = strtoull(str, &end, base);
	if (*result == 0)
	return (errno);
	return (0);
	}

	utsname_t *
	utsname(void)
	{
	return (&hw_utsname);
	}

	/*
	* =========================================================================
	* kernel emulation setup & teardown
	* =========================================================================
	*/
	static int
	umem_out_of_memory(void)
	{
	char errmsg[] = "out of memory -- generating core dump\n";

	(void) fprintf(stderr, "%s", errmsg);
	abort();
	return (0);
	}

	void
	kernel_init(int mode)
	{
	extern uint_t rrw_tsd_key;

	umem_nofail_callback(umem_out_of_memory);

	physmem = sysconf(_SC_PHYS_PAGES);

	dprintf("physmem = %llu pages (%.2f GB)\n", physmem,
	(double)physmem * sysconf(_SC_PAGE_SIZE) / (1ULL << 30));

	(void) snprintf(hw_serial, sizeof (hw_serial), "%ld",
	(mode & SPA_MODE_WRITE) ? get_system_hostid() : 0);

	random_init();

	VERIFY0(uname(&hw_utsname));

	system_taskq_init();
	icp_init();

	zstd_init();

	spa_init((spa_mode_t)mode);

	fletcher_4_init();

	tsd_create(&rrw_tsd_key, rrw_tsd_destroy);
	}

	void
	kernel_fini(void)
	{
	fletcher_4_fini();
	spa_fini();

	zstd_fini();

	icp_fini();
	system_taskq_fini();

	random_fini();
	}

	uid_t
	crgetuid(cred_t *cr)
	{
	return (0);
	}

	uid_t
	crgetruid(cred_t *cr)
	{
	return (0);
	}

	gid_t
	crgetgid(cred_t *cr)
	{
	return (0);
	}

	int
	crgetngroups(cred_t *cr)
	{
	return (0);
	}

	gid_t *
	crgetgroups(cred_t *cr)
	{
	return (NULL);
	}

	int
	zfs_secpolicy_snapshot_perms(const char name, cred_t cr)
	{
	return (0);
	}

	int
	zfs_secpolicy_rename_perms(const char from, const char to, cred_t *cr)
	{
	return (0);
	}

	int
	zfs_secpolicy_destroy_perms(const char name, cred_t cr)
	{
	return (0);
	}

	int
	secpolicy_zfs(const cred_t *cr)
	{
	return (0);
	}

	int
	secpolicy_zfs_proc(const cred_t cr, proc_t proc)
	{
	return (0);
	}

	ksiddomain_t *
	ksid_lookupdomain(const char *dom)
	{
	ksiddomain_t *kd;

	kd = umem_zalloc(sizeof (ksiddomain_t), UMEM_NOFAIL);
	kd->kd_name = spa_strdup(dom);
	return (kd);
	}

	void
	ksiddomain_rele(ksiddomain_t *ksid)
	{
	spa_strfree(ksid->kd_name);
	umem_free(ksid, sizeof (ksiddomain_t));
	}

	char *
	kmem_vasprintf(const char *fmt, va_list adx)
	{
	char *buf = NULL;
	va_list adx_copy;

	va_copy(adx_copy, adx);
	VERIFY(vasprintf(&buf, fmt, adx_copy) != -1);
	va_end(adx_copy);

	return (buf);
	}

	char *
	kmem_asprintf(const char *fmt, ...)
	{
	char *buf = NULL;
	va_list adx;

	va_start(adx, fmt);
	VERIFY(vasprintf(&buf, fmt, adx) != -1);
	va_end(adx);

	return (buf);
	}

	/* ARGSUSED */
	int
	zfs_onexit_fd_hold(int fd, minor_t *minorp)
	{
	*minorp = 0;
	return (0);
	}

	/* ARGSUSED */
	void
	zfs_onexit_fd_rele(int fd)
	{
	}

	/* ARGSUSED */
	int
	zfs_onexit_add_cb(minor_t minor, void (func)(void ), void *data,
	uint64_t *action_handle)
	{
	return (0);
	}

	fstrans_cookie_t
	spl_fstrans_mark(void)
	{
	return ((fstrans_cookie_t)0);
	}

	void
	spl_fstrans_unmark(fstrans_cookie_t cookie)
	{
	}

	int
	__spl_pf_fstrans_check(void)
	{
	return (0);
	}

	int
	kmem_cache_reap_active(void)
	{
	return (0);
	}

	void *zvol_tag = "zvol_tag";

	void
	zvol_create_minor(const char *name)
	{
	}

	void
	zvol_create_minors_recursive(const char *name)
	{
	}

	void
	zvol_remove_minors(spa_t spa, const char name, boolean_t async)
	{
	}

	void
	zvol_rename_minors(spa_t spa, const char oldname, const char *newname,
	boolean_t async)
	{
	}

	/*
	* Open file
	*
	* path - fully qualified path to file
	* flags - file attributes O_READ / O_WRITE / O_EXCL
	* fpp - pointer to return file pointer
	*
	* Returns 0 on success underlying error on failure.
	*/
	int
	zfs_file_open(const char path, int flags, int mode, zfs_file_t *fpp)
	{
	int fd = -1;
	int dump_fd = -1;
	int err;
	int old_umask = 0;
	zfs_file_t *fp;
	struct stat64 st;

	if (!(flags & O_CREAT) && stat64(path, &st) == -1)
	return (errno);

	if (!(flags & O_CREAT) && S_ISBLK(st.st_mode))
	flags \|= O_DIRECT;

	if (flags & O_CREAT)
	old_umask = umask(0);

	fd = open64(path, flags, mode);
	if (fd == -1)
	return (errno);

	if (flags & O_CREAT)
	(void) umask(old_umask);

	if (vn_dumpdir != NULL) {
	char *dumppath = umem_zalloc(MAXPATHLEN, UMEM_NOFAIL);
	- char inpath = basename((char )(uintptr_t)path);
	+ const char *inpath = zfs_basename(path);

	(void) snprintf(dumppath, MAXPATHLEN,
	"%s/%s", vn_dumpdir, inpath);
	dump_fd = open64(dumppath, O_CREAT \| O_WRONLY, 0666);
	umem_free(dumppath, MAXPATHLEN);
	if (dump_fd == -1) {
	err = errno;
	close(fd);
	return (err);
	}
	} else {
	dump_fd = -1;
	}

	(void) fcntl(fd, F_SETFD, FD_CLOEXEC);

	fp = umem_zalloc(sizeof (zfs_file_t), UMEM_NOFAIL);
	fp->f_fd = fd;
	fp->f_dump_fd = dump_fd;
	*fpp = fp;

	return (0);
	}

	void
	zfs_file_close(zfs_file_t *fp)
	{
	close(fp->f_fd);
	if (fp->f_dump_fd != -1)
	close(fp->f_dump_fd);

	umem_free(fp, sizeof (zfs_file_t));
	}

	/*
	* Stateful write - use os internal file pointer to determine where to
	* write and update on successful completion.
	*
	* fp - pointer to file (pipe, socket, etc) to write to
	* buf - buffer to write
	* count - # of bytes to write
	* resid - pointer to count of unwritten bytes (if short write)
	*
	* Returns 0 on success errno on failure.
	*/
	int
	zfs_file_write(zfs_file_t fp, const void buf, size_t count, ssize_t *resid)
	{
	ssize_t rc;

	rc = write(fp->f_fd, buf, count);
	if (rc < 0)
	return (errno);

	if (resid) {
	*resid = count - rc;
	} else if (rc != count) {
	return (EIO);
	}

	return (0);
	}

	/*
	* Stateless write - os internal file pointer is not updated.
	*
	* fp - pointer to file (pipe, socket, etc) to write to
	* buf - buffer to write
	* count - # of bytes to write
	* off - file offset to write to (only valid for seekable types)
	* resid - pointer to count of unwritten bytes
	*
	* Returns 0 on success errno on failure.
	*/
	int
	zfs_file_pwrite(zfs_file_t fp, const void buf,
	size_t count, loff_t pos, ssize_t *resid)
	{
	ssize_t rc, split, done;
	int sectors;

	/*
	* To simulate partial disk writes, we split writes into two
	* system calls so that the process can be killed in between.
	* This is used by ztest to simulate realistic failure modes.
	*/
	sectors = count >> SPA_MINBLOCKSHIFT;
	split = (sectors > 0 ? rand() % sectors : 0) << SPA_MINBLOCKSHIFT;
	rc = pwrite64(fp->f_fd, buf, split, pos);
	if (rc != -1) {
	done = rc;
	rc = pwrite64(fp->f_fd, (char *)buf + split,
	count - split, pos + split);
	}
	#ifdef __linux__
	if (rc == -1 && errno == EINVAL) {
	/*
	* Under Linux, this most likely means an alignment issue
	* (memory or disk) due to O_DIRECT, so we abort() in order
	* to catch the offender.
	*/
	abort();
	}
	#endif

	if (rc < 0)
	return (errno);

	done += rc;

	if (resid) {
	*resid = count - done;
	} else if (done != count) {
	return (EIO);
	}

	return (0);
	}

	/*
	* Stateful read - use os internal file pointer to determine where to
	* read and update on successful completion.
	*
	* fp - pointer to file (pipe, socket, etc) to read from
	* buf - buffer to write
	* count - # of bytes to read
	* resid - pointer to count of unread bytes (if short read)
	*
	* Returns 0 on success errno on failure.
	*/
	int
	zfs_file_read(zfs_file_t fp, void buf, size_t count, ssize_t *resid)
	{
	int rc;

	rc = read(fp->f_fd, buf, count);
	if (rc < 0)
	return (errno);

	if (resid) {
	*resid = count - rc;
	} else if (rc != count) {
	return (EIO);
	}

	return (0);
	}

	/*
	* Stateless read - os internal file pointer is not updated.
	*
	* fp - pointer to file (pipe, socket, etc) to read from
	* buf - buffer to write
	* count - # of bytes to write
	* off - file offset to read from (only valid for seekable types)
	* resid - pointer to count of unwritten bytes (if short write)
	*
	* Returns 0 on success errno on failure.
	*/
	int
	zfs_file_pread(zfs_file_t fp, void buf, size_t count, loff_t off,
	ssize_t *resid)
	{
	ssize_t rc;

	rc = pread64(fp->f_fd, buf, count, off);
	if (rc < 0) {
	#ifdef __linux__
	/*
	* Under Linux, this most likely means an alignment issue
	* (memory or disk) due to O_DIRECT, so we abort() in order to
	* catch the offender.
	*/
	if (errno == EINVAL)
	abort();
	#endif
	return (errno);
	}

	if (fp->f_dump_fd != -1) {
	int status;

	status = pwrite64(fp->f_dump_fd, buf, rc, off);
	ASSERT(status != -1);
	}

	if (resid) {
	*resid = count - rc;
	} else if (rc != count) {
	return (EIO);
	}

	return (0);
	}

	/*
	* lseek - set / get file pointer
	*
	* fp - pointer to file (pipe, socket, etc) to read from
	* offp - value to seek to, returns current value plus passed offset
	* whence - see man pages for standard lseek whence values
	*
	* Returns 0 on success errno on failure (ESPIPE for non seekable types)
	*/
	int
	zfs_file_seek(zfs_file_t fp, loff_t offp, int whence)
	{
	loff_t rc;

	rc = lseek(fp->f_fd, *offp, whence);
	if (rc < 0)
	return (errno);

	*offp = rc;

	return (0);
	}

	/*
	* Get file attributes
	*
	* filp - file pointer
	* zfattr - pointer to file attr structure
	*
	* Currently only used for fetching size and file mode
	*
	* Returns 0 on success or error code of underlying getattr call on failure.
	*/
	int
	zfs_file_getattr(zfs_file_t fp, zfs_file_attr_t zfattr)
	{
	struct stat64 st;

	if (fstat64_blk(fp->f_fd, &st) == -1)
	return (errno);

	zfattr->zfa_size = st.st_size;
	zfattr->zfa_mode = st.st_mode;

	return (0);
	}

	/*
	* Sync file to disk
	*
	* filp - file pointer
	* flags - O_SYNC and or O_DSYNC
	*
	* Returns 0 on success or error code of underlying sync call on failure.
	*/
	int
	zfs_file_fsync(zfs_file_t *fp, int flags)
	{
	int rc;

	rc = fsync(fp->f_fd);
	if (rc < 0)
	return (errno);

	return (0);
	}

	/*
	* fallocate - allocate or free space on disk
	*
	* fp - file pointer
	* mode (non-standard options for hole punching etc)
	* offset - offset to start allocating or freeing from
	* len - length to free / allocate
	*
	* OPTIONAL
	*/
	int
	zfs_file_fallocate(zfs_file_t *fp, int mode, loff_t offset, loff_t len)
	{
	#ifdef __linux__
	return (fallocate(fp->f_fd, mode, offset, len));
	#else
	return (EOPNOTSUPP);
	#endif
	}

	/*
	* Request current file pointer offset
	*
	* fp - pointer to file
	*
	* Returns current file offset.
	*/
	loff_t
	zfs_file_off(zfs_file_t *fp)
	{
	return (lseek(fp->f_fd, SEEK_CUR, 0));
	}

	/*
	* unlink file
	*
	* path - fully qualified file path
	*
	* Returns 0 on success.
	*
	* OPTIONAL
	*/
	int
	zfs_file_unlink(const char *path)
	{
	return (remove(path));
	}

	/*
	* Get reference to file pointer
	*
	* fd - input file descriptor
	* fpp - pointer to file pointer
	*
	* Returns 0 on success EBADF on failure.
	* Unsupported in user space.
	*/
	int
	zfs_file_get(int fd, zfs_file_t **fpp)
	{
	abort();

	return (EOPNOTSUPP);
	}

	/*
	* Drop reference to file pointer
	*
	* fd - input file descriptor
	*
	* Unsupported in user space.
	*/
	void
	zfs_file_put(int fd)
	{
	abort();
	}

	void
	zfsvfs_update_fromname(const char oldname, const char newname)
	{
	}
	diff --git a/sys/contrib/openzfs/lib/libzutil/Makefile.am b/sys/contrib/openzfs/lib/libzutil/Makefile.am
	index 2f0357e9f900..0bc29f05e0fb 100644
	--- a/sys/contrib/openzfs/lib/libzutil/Makefile.am
	+++ b/sys/contrib/openzfs/lib/libzutil/Makefile.am
	@@ -1,54 +1,55 @@
	include $(top_srcdir)/config/Rules.am

	# Suppress unused but set variable warnings often due to ASSERTs
	AM_CFLAGS += $(NO_UNUSED_BUT_SET_VARIABLE)
	AM_CFLAGS += $(LIBBLKID_CFLAGS) $(LIBUDEV_CFLAGS)
	+AM_CFLAGS += -fvisibility=hidden

	DEFAULT_INCLUDES += -I$(srcdir)

	noinst_LTLIBRARIES = libzutil.la

	USER_C = \
	zutil_device_path.c \
	zutil_import.c \
	zutil_import.h \
	zutil_nicenum.c \
	zutil_pool.c

	if BUILD_LINUX
	USER_C += \
	os/linux/zutil_device_path_os.c \
	os/linux/zutil_import_os.c \
	os/linux/zutil_compat.c
	endif

	if BUILD_FREEBSD
	DEFAULT_INCLUDES += -I$(top_srcdir)/include/os/freebsd/zfs

	USER_C += \
	os/freebsd/zutil_device_path_os.c \
	os/freebsd/zutil_import_os.c \
	os/freebsd/zutil_compat.c

	VPATH += $(top_srcdir)/module/os/freebsd/zfs

	nodist_libzutil_la_SOURCES = zfs_ioctl_compat.c
	endif

	libzutil_la_SOURCES = $(USER_C)

	libzutil_la_LIBADD = \
	$(abs_top_builddir)/lib/libavl/libavl.la \
	$(abs_top_builddir)/lib/libtpool/libtpool.la \
	$(abs_top_builddir)/lib/libnvpair/libnvpair.la \
	$(abs_top_builddir)/lib/libspl/libspl.la

	if BUILD_LINUX
	libzutil_la_LIBADD += \
	$(abs_top_builddir)/lib/libefi/libefi.la \
	-lrt
	endif

	libzutil_la_LIBADD += -lm $(LIBBLKID_LIBS) $(LIBUDEV_LIBS)

	include $(top_srcdir)/config/CppCheck.am
	diff --git a/sys/contrib/openzfs/lib/libzutil/os/freebsd/zutil_import_os.c b/sys/contrib/openzfs/lib/libzutil/os/freebsd/zutil_import_os.c
	index 36c4d90aa4b9..2d8900ce2483 100644
	--- a/sys/contrib/openzfs/lib/libzutil/os/freebsd/zutil_import_os.c
	+++ b/sys/contrib/openzfs/lib/libzutil/os/freebsd/zutil_import_os.c
	@@ -1,249 +1,249 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2012, 2017 by Delphix. All rights reserved.
	* Copyright 2015 RackTop Systems.
	* Copyright 2016 Nexenta Systems, Inc.
	*/

	/*
	* Pool import support functions.
	*
	* To import a pool, we rely on reading the configuration information from the
	* ZFS label of each device. If we successfully read the label, then we
	* organize the configuration information in the following hierarchy:
	*
	* pool guid -> toplevel vdev guid -> label txg
	*
	* Duplicate entries matching this same tuple will be discarded. Once we have
	* examined every device, we pick the best label txg config for each toplevel
	* vdev. We then arrange these toplevel vdevs into a complete pool config, and
	* update any paths that have changed. Finally, we attempt to import the pool
	* using our derived config, and record the results.
	*/

	#include <sys/types.h>
	#include <sys/disk.h>
	#include <sys/ioctl.h>
	#include <sys/stat.h>
	#include <sys/sysctl.h>

	#include <aio.h>
	#include <ctype.h>
	#include <dirent.h>
	#include <errno.h>
	#include <libintl.h>
	#include <libgen.h>
	#include <stddef.h>
	#include <stdlib.h>
	#include <string.h>
	#include <unistd.h>
	#include <fcntl.h>

	#include <sys/efi_partition.h>
	#include <thread_pool.h>
	#include <libgeom.h>

	#include <sys/vdev_impl.h>

	#include <libzutil.h>

	#include "zutil_import.h"

	/*
	* Update a leaf vdev's persistent device strings
	*
	* - only applies for a dedicated leaf vdev (aka whole disk)
	* - updated during pool create\|add\|attach\|import
	* - used for matching device matching during auto-{online,expand,replace}
	* - stored in a leaf disk config label (i.e. alongside 'path' NVP)
	* - these strings are currently not used in kernel (i.e. for vdev_disk_open)
	*
	* On FreeBSD we currently just strip devid and phys_path to avoid confusion.
	*/
	void
	update_vdev_config_dev_strs(nvlist_t *nv)
	{
	(void) nvlist_remove_all(nv, ZPOOL_CONFIG_DEVID);
	(void) nvlist_remove_all(nv, ZPOOL_CONFIG_PHYS_PATH);
	}

	/*
	* Do not even look at these devices.
	*/
	static const char * const excluded_devs[] = {
	"nfslock",
	"sequencer",
	"zfs",
	};
	#define EXCLUDED_DIR "/dev/"
	#define EXCLUDED_DIR_LEN 5

	void
	zpool_open_func(void *arg)
	{
	rdsk_node_t *rn = arg;
	struct stat64 statbuf;
	nvlist_t *config;
	size_t i;
	int num_labels;
	int fd;
	off_t mediasize = 0;

	/*
	* Do not even look at excluded devices.
	*/
	if (strncmp(rn->rn_name, EXCLUDED_DIR, EXCLUDED_DIR_LEN) == 0) {
	char *name = rn->rn_name + EXCLUDED_DIR_LEN;
	for (i = 0; i < nitems(excluded_devs); ++i) {
	const char *excluded_name = excluded_devs[i];
	size_t len = strlen(excluded_name);
	if (strncmp(name, excluded_name, len) == 0) {
	return;
	}
	}
	}

	/*
	* O_NONBLOCK so we don't hang trying to open things like serial ports.
	*/
	if ((fd = open(rn->rn_name, O_RDONLY\|O_NONBLOCK\|O_CLOEXEC)) < 0)
	return;

	/*
	* Ignore failed stats.
	*/
	if (fstat64(fd, &statbuf) != 0)
	goto out;
	/*
	* We only want regular files, character devs and block devs.
	*/
	if (S_ISREG(statbuf.st_mode)) {
	/* Check if this file is too small to hold a zpool. */
	if (statbuf.st_size < SPA_MINDEVSIZE) {
	goto out;
	}
	} else if (S_ISCHR(statbuf.st_mode) \|\| S_ISBLK(statbuf.st_mode)) {
	/* Check if this device is too small to hold a zpool. */
	if (ioctl(fd, DIOCGMEDIASIZE, &mediasize) != 0 \|\|
	mediasize < SPA_MINDEVSIZE) {
	goto out;
	}
	} else {
	goto out;
	}

	if (zpool_read_label(fd, &config, &num_labels) != 0)
	goto out;
	if (num_labels == 0) {
	nvlist_free(config);
	goto out;
	}

	rn->rn_config = config;
	rn->rn_num_labels = num_labels;

	/* TODO: Reuse labelpaths logic from Linux? */
	out:
	(void) close(fd);
	}

	-static const char *
	+static const char * const
	zpool_default_import_path[] = {
	"/dev"
	};

	const char * const *
	zpool_default_search_paths(size_t *count)
	{
	*count = nitems(zpool_default_import_path);
	return (zpool_default_import_path);
	}

	int
	zpool_find_import_blkid(libpc_handle_t hdl, pthread_mutex_t lock,
	avl_tree_t **slice_cache)
	{
	const char *oid = "vfs.zfs.vol.recursive";
	char *end, path[MAXPATHLEN];
	rdsk_node_t *slice;
	struct gmesh mesh;
	struct gclass *mp;
	struct ggeom *gp;
	struct gprovider *pp;
	avl_index_t where;
	int error, value;
	size_t pathleft, size = sizeof (value);
	boolean_t skip_zvols = B_FALSE;

	end = stpcpy(path, "/dev/");
	pathleft = &path[sizeof (path)] - end;

	error = geom_gettree(&mesh);
	if (error != 0)
	return (error);

	if (sysctlbyname(oid, &value, &size, NULL, 0) == 0 && value == 0)
	skip_zvols = B_TRUE;

	*slice_cache = zutil_alloc(hdl, sizeof (avl_tree_t));
	avl_create(*slice_cache, slice_cache_compare, sizeof (rdsk_node_t),
	offsetof(rdsk_node_t, rn_node));

	LIST_FOREACH(mp, &mesh.lg_class, lg_class) {
	if (skip_zvols && strcmp(mp->lg_name, "ZFS::ZVOL") == 0)
	continue;
	LIST_FOREACH(gp, &mp->lg_geom, lg_geom) {
	LIST_FOREACH(pp, &gp->lg_provider, lg_provider) {
	strlcpy(end, pp->lg_name, pathleft);
	slice = zutil_alloc(hdl, sizeof (rdsk_node_t));
	slice->rn_name = zutil_strdup(hdl, path);
	slice->rn_vdev_guid = 0;
	slice->rn_lock = lock;
	slice->rn_avl = *slice_cache;
	slice->rn_hdl = hdl;
	slice->rn_labelpaths = B_FALSE;
	slice->rn_order = IMPORT_ORDER_DEFAULT;

	pthread_mutex_lock(lock);
	if (avl_find(*slice_cache, slice, &where)) {
	free(slice->rn_name);
	free(slice);
	} else {
	avl_insert(*slice_cache, slice, where);
	}
	pthread_mutex_unlock(lock);
	}
	}
	}

	geom_deletetree(&mesh);

	return (0);
	}

	int
	zfs_dev_flush(int fd __unused)
	{
	return (0);
	}
	diff --git a/sys/contrib/openzfs/lib/libzutil/os/linux/zutil_import_os.c b/sys/contrib/openzfs/lib/libzutil/os/linux/zutil_import_os.c
	index 84c3cb44fec7..5defb526f210 100644
	--- a/sys/contrib/openzfs/lib/libzutil/os/linux/zutil_import_os.c
	+++ b/sys/contrib/openzfs/lib/libzutil/os/linux/zutil_import_os.c
	@@ -1,869 +1,851 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright 2015 Nexenta Systems, Inc. All rights reserved.
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	* Copyright 2015 RackTop Systems.
	* Copyright (c) 2016, Intel Corporation.
	*/

	/*
	* Pool import support functions.
	*
	* Used by zpool, ztest, zdb, and zhack to locate importable configs. Since
	* these commands are expected to run in the global zone, we can assume
	* that the devices are all readable when called.
	*
	* To import a pool, we rely on reading the configuration information from the
	* ZFS label of each device. If we successfully read the label, then we
	* organize the configuration information in the following hierarchy:
	*
	* pool guid -> toplevel vdev guid -> label txg
	*
	* Duplicate entries matching this same tuple will be discarded. Once we have
	* examined every device, we pick the best label txg config for each toplevel
	* vdev. We then arrange these toplevel vdevs into a complete pool config, and
	* update any paths that have changed. Finally, we attempt to import the pool
	* using our derived config, and record the results.
	*/

	#include <ctype.h>
	#include <dirent.h>
	#include <errno.h>
	#include <libintl.h>
	#include <libgen.h>
	#include <stddef.h>
	#include <stdlib.h>
	#include <stdio.h>
	#include <string.h>
	#include <sys/stat.h>
	#include <unistd.h>
	#include <fcntl.h>
	#include <sys/dktp/fdisk.h>
	#include <sys/vdev_impl.h>
	#include <sys/fs/zfs.h>

	#include <thread_pool.h>
	#include <libzutil.h>
	#include <libnvpair.h>

	#include "zutil_import.h"

	#ifdef HAVE_LIBUDEV
	#include <libudev.h>
	#include <sched.h>
	#endif
	#include <blkid/blkid.h>

	-#define DEFAULT_IMPORT_PATH_SIZE 9
	#define DEV_BYID_PATH "/dev/disk/by-id/"

	+/*
	+ * Skip devices with well known prefixes:
	+ * there can be side effects when opening devices which need to be avoided.
	+ *
	+ * hpet - High Precision Event Timer
	+ * watchdog[N] - Watchdog must be closed in a special way.
	+ */
	static boolean_t
	-is_watchdog_dev(char *dev)
	+should_skip_dev(const char *dev)
	{
	- /* For 'watchdog' dev */
	- if (strcmp(dev, "watchdog") == 0)
	- return (B_TRUE);
	-
	- /* For 'watchdog<digit><whatever> */
	- if (strstr(dev, "watchdog") == dev && isdigit(dev[8]))
	- return (B_TRUE);
	-
	- return (B_FALSE);
	+ return ((strcmp(dev, "watchdog") == 0) \|\|
	+ (strncmp(dev, "watchdog", 8) == 0 && isdigit(dev[8])) \|\|
	+ (strcmp(dev, "hpet") == 0));
	}

	int
	zfs_dev_flush(int fd)
	{
	return (ioctl(fd, BLKFLSBUF));
	}

	void
	zpool_open_func(void *arg)
	{
	rdsk_node_t *rn = arg;
	libpc_handle_t *hdl = rn->rn_hdl;
	struct stat64 statbuf;
	nvlist_t *config;
	- char bname, dupname;
	uint64_t vdev_guid = 0;
	int error;
	int num_labels = 0;
	int fd;

	- /*
	- * Skip devices with well known prefixes there can be side effects
	- * when opening devices which need to be avoided.
	- *
	- * hpet - High Precision Event Timer
	- * watchdog - Watchdog must be closed in a special way.
	- */
	- dupname = zutil_strdup(hdl, rn->rn_name);
	- bname = basename(dupname);
	- error = ((strcmp(bname, "hpet") == 0) \|\| is_watchdog_dev(bname));
	- free(dupname);
	- if (error)
	+ if (should_skip_dev(zfs_basename(rn->rn_name)))
	return;

	/*
	* Ignore failed stats. We only want regular files and block devices.
	+ * Ignore files that are too small to hold a zpool.
	*/
	if (stat64(rn->rn_name, &statbuf) != 0 \|\|
	- (!S_ISREG(statbuf.st_mode) && !S_ISBLK(statbuf.st_mode)))
	+ (!S_ISREG(statbuf.st_mode) && !S_ISBLK(statbuf.st_mode)) \|\|
	+ (S_ISREG(statbuf.st_mode) && statbuf.st_size < SPA_MINDEVSIZE))
	return;

	/*
	* Preferentially open using O_DIRECT to bypass the block device
	* cache which may be stale for multipath devices. An EINVAL errno
	* indicates O_DIRECT is unsupported so fallback to just O_RDONLY.
	*/
	fd = open(rn->rn_name, O_RDONLY \| O_DIRECT \| O_CLOEXEC);
	if ((fd < 0) && (errno == EINVAL))
	fd = open(rn->rn_name, O_RDONLY \| O_CLOEXEC);
	if ((fd < 0) && (errno == EACCES))
	hdl->lpc_open_access_error = B_TRUE;
	if (fd < 0)
	return;

	- /*
	- * This file is too small to hold a zpool
	- */
	- if (S_ISREG(statbuf.st_mode) && statbuf.st_size < SPA_MINDEVSIZE) {
	- (void) close(fd);
	- return;
	- }
	-
	error = zpool_read_label(fd, &config, &num_labels);
	if (error != 0) {
	(void) close(fd);
	return;
	}

	if (num_labels == 0) {
	(void) close(fd);
	nvlist_free(config);
	return;
	}

	/*
	* Check that the vdev is for the expected guid. Additional entries
	* are speculatively added based on the paths stored in the labels.
	* Entries with valid paths but incorrect guids must be removed.
	*/
	error = nvlist_lookup_uint64(config, ZPOOL_CONFIG_GUID, &vdev_guid);
	if (error \|\| (rn->rn_vdev_guid && rn->rn_vdev_guid != vdev_guid)) {
	(void) close(fd);
	nvlist_free(config);
	return;
	}

	(void) close(fd);

	rn->rn_config = config;
	rn->rn_num_labels = num_labels;

	/*
	* Add additional entries for paths described by this label.
	*/
	if (rn->rn_labelpaths) {
	char *path = NULL;
	char *devid = NULL;
	char *env = NULL;
	rdsk_node_t *slice;
	avl_index_t where;
	int timeout;
	int error;

	if (label_paths(rn->rn_hdl, rn->rn_config, &path, &devid))
	return;

	env = getenv("ZPOOL_IMPORT_UDEV_TIMEOUT_MS");
	if ((env == NULL) \|\| sscanf(env, "%d", &timeout) != 1 \|\|
	timeout < 0) {
	timeout = DISK_LABEL_WAIT;
	}

	/*
	* Allow devlinks to stabilize so all paths are available.
	*/
	zpool_label_disk_wait(rn->rn_name, timeout);

	if (path != NULL) {
	slice = zutil_alloc(hdl, sizeof (rdsk_node_t));
	slice->rn_name = zutil_strdup(hdl, path);
	slice->rn_vdev_guid = vdev_guid;
	slice->rn_avl = rn->rn_avl;
	slice->rn_hdl = hdl;
	slice->rn_order = IMPORT_ORDER_PREFERRED_1;
	slice->rn_labelpaths = B_FALSE;
	pthread_mutex_lock(rn->rn_lock);
	if (avl_find(rn->rn_avl, slice, &where)) {
	pthread_mutex_unlock(rn->rn_lock);
	free(slice->rn_name);
	free(slice);
	} else {
	avl_insert(rn->rn_avl, slice, where);
	pthread_mutex_unlock(rn->rn_lock);
	zpool_open_func(slice);
	}
	}

	if (devid != NULL) {
	slice = zutil_alloc(hdl, sizeof (rdsk_node_t));
	error = asprintf(&slice->rn_name, "%s%s",
	DEV_BYID_PATH, devid);
	if (error == -1) {
	free(slice);
	return;
	}

	slice->rn_vdev_guid = vdev_guid;
	slice->rn_avl = rn->rn_avl;
	slice->rn_hdl = hdl;
	slice->rn_order = IMPORT_ORDER_PREFERRED_2;
	slice->rn_labelpaths = B_FALSE;
	pthread_mutex_lock(rn->rn_lock);
	if (avl_find(rn->rn_avl, slice, &where)) {
	pthread_mutex_unlock(rn->rn_lock);
	free(slice->rn_name);
	free(slice);
	} else {
	avl_insert(rn->rn_avl, slice, where);
	pthread_mutex_unlock(rn->rn_lock);
	zpool_open_func(slice);
	}
	}
	}
	}

	-static char *
	-zpool_default_import_path[DEFAULT_IMPORT_PATH_SIZE] = {
	+static const char * const
	+zpool_default_import_path[] = {
	"/dev/disk/by-vdev", /* Custom rules, use first if they exist */
	"/dev/mapper", /* Use multipath devices before components */
	"/dev/disk/by-partlabel", /* Single unique entry set by user */
	"/dev/disk/by-partuuid", /* Generated partition uuid */
	"/dev/disk/by-label", /* Custom persistent labels */
	"/dev/disk/by-uuid", /* Single unique entry and persistent */
	"/dev/disk/by-id", /* May be multiple entries and persistent */
	"/dev/disk/by-path", /* Encodes physical location and persistent */
	"/dev" /* UNSAFE device names will change */
	};

	const char * const *
	zpool_default_search_paths(size_t *count)
	{
	- *count = DEFAULT_IMPORT_PATH_SIZE;
	- return ((const char * const *)zpool_default_import_path);
	+ *count = ARRAY_SIZE(zpool_default_import_path);
	+ return (zpool_default_import_path);
	}

	/*
	* Given a full path to a device determine if that device appears in the
	* import search path. If it does return the first match and store the
	* index in the passed 'order' variable, otherwise return an error.
	*/
	static int
	zfs_path_order(char name, int order)
	{
	int i, error = ENOENT;
	char dir, env, envdup, tmp = NULL;

	env = getenv("ZPOOL_IMPORT_PATH");
	if (env) {
	envdup = strdup(env);
	for (dir = strtok_r(envdup, ":", &tmp), i = 0;
	dir != NULL;
	dir = strtok_r(NULL, ":", &tmp), i++) {
	if (strncmp(name, dir, strlen(dir)) == 0) {
	*order = i;
	error = 0;
	break;
	}
	}
	free(envdup);
	} else {
	- for (i = 0; i < DEFAULT_IMPORT_PATH_SIZE; i++) {
	+ for (i = 0; i < ARRAY_SIZE(zpool_default_import_path); i++) {
	if (strncmp(name, zpool_default_import_path[i],
	strlen(zpool_default_import_path[i])) == 0) {
	*order = i;
	error = 0;
	break;
	}
	}
	}

	return (error);
	}

	/*
	* Use libblkid to quickly enumerate all known zfs devices.
	*/
	int
	zpool_find_import_blkid(libpc_handle_t hdl, pthread_mutex_t lock,
	avl_tree_t **slice_cache)
	{
	rdsk_node_t *slice;
	blkid_cache cache;
	blkid_dev_iterate iter;
	blkid_dev dev;
	avl_index_t where;
	int error;

	*slice_cache = NULL;

	error = blkid_get_cache(&cache, NULL);
	if (error != 0)
	return (error);

	error = blkid_probe_all_new(cache);
	if (error != 0) {
	blkid_put_cache(cache);
	return (error);
	}

	iter = blkid_dev_iterate_begin(cache);
	if (iter == NULL) {
	blkid_put_cache(cache);
	return (EINVAL);
	}

	error = blkid_dev_set_search(iter, "TYPE", "zfs_member");
	if (error != 0) {
	blkid_dev_iterate_end(iter);
	blkid_put_cache(cache);
	return (error);
	}

	*slice_cache = zutil_alloc(hdl, sizeof (avl_tree_t));
	avl_create(*slice_cache, slice_cache_compare, sizeof (rdsk_node_t),
	offsetof(rdsk_node_t, rn_node));

	while (blkid_dev_next(iter, &dev) == 0) {
	slice = zutil_alloc(hdl, sizeof (rdsk_node_t));
	slice->rn_name = zutil_strdup(hdl, blkid_dev_devname(dev));
	slice->rn_vdev_guid = 0;
	slice->rn_lock = lock;
	slice->rn_avl = *slice_cache;
	slice->rn_hdl = hdl;
	slice->rn_labelpaths = B_TRUE;

	error = zfs_path_order(slice->rn_name, &slice->rn_order);
	if (error == 0)
	slice->rn_order += IMPORT_ORDER_SCAN_OFFSET;
	else
	slice->rn_order = IMPORT_ORDER_DEFAULT;

	pthread_mutex_lock(lock);
	if (avl_find(*slice_cache, slice, &where)) {
	free(slice->rn_name);
	free(slice);
	} else {
	avl_insert(*slice_cache, slice, where);
	}
	pthread_mutex_unlock(lock);
	}

	blkid_dev_iterate_end(iter);
	blkid_put_cache(cache);

	return (0);
	}

	/*
	* Linux persistent device strings for vdev labels
	*
	* based on libudev for consistency with libudev disk add/remove events
	*/

	typedef struct vdev_dev_strs {
	char vds_devid[128];
	char vds_devphys[128];
	} vdev_dev_strs_t;

	#ifdef HAVE_LIBUDEV

	/*
	* Obtain the persistent device id string (describes what)
	*
	* used by ZED vdev matching for auto-{online,expand,replace}
	*/
	int
	zfs_device_get_devid(struct udev_device dev, char bufptr, size_t buflen)
	{
	struct udev_list_entry *entry;
	const char *bus;
	char devbyid[MAXPATHLEN];

	/* The bus based by-id path is preferred */
	bus = udev_device_get_property_value(dev, "ID_BUS");

	if (bus == NULL) {
	const char *dm_uuid;

	/*
	* For multipath nodes use the persistent uuid based identifier
	*
	* Example: /dev/disk/by-id/dm-uuid-mpath-35000c5006304de3f
	*/
	dm_uuid = udev_device_get_property_value(dev, "DM_UUID");
	if (dm_uuid != NULL) {
	(void) snprintf(bufptr, buflen, "dm-uuid-%s", dm_uuid);
	return (0);
	}

	/*
	* For volumes use the persistent /dev/zvol/dataset identifier
	*/
	entry = udev_device_get_devlinks_list_entry(dev);
	while (entry != NULL) {
	const char *name;

	name = udev_list_entry_get_name(entry);
	if (strncmp(name, ZVOL_ROOT, strlen(ZVOL_ROOT)) == 0) {
	(void) strlcpy(bufptr, name, buflen);
	return (0);
	}
	entry = udev_list_entry_get_next(entry);
	}

	/*
	* NVME 'by-id' symlinks are similar to bus case
	*/
	struct udev_device *parent;

	parent = udev_device_get_parent_with_subsystem_devtype(dev,
	"nvme", NULL);
	if (parent != NULL)
	bus = "nvme"; /* continue with bus symlink search */
	else
	return (ENODATA);
	}

	/*
	* locate the bus specific by-id link
	*/
	(void) snprintf(devbyid, sizeof (devbyid), "%s%s-", DEV_BYID_PATH, bus);
	entry = udev_device_get_devlinks_list_entry(dev);
	while (entry != NULL) {
	const char *name;

	name = udev_list_entry_get_name(entry);
	if (strncmp(name, devbyid, strlen(devbyid)) == 0) {
	name += strlen(DEV_BYID_PATH);
	(void) strlcpy(bufptr, name, buflen);
	return (0);
	}
	entry = udev_list_entry_get_next(entry);
	}

	return (ENODATA);
	}

	/*
	* Obtain the persistent physical location string (describes where)
	*
	* used by ZED vdev matching for auto-{online,expand,replace}
	*/
	int
	zfs_device_get_physical(struct udev_device dev, char bufptr, size_t buflen)
	{
	const char *physpath = NULL;
	struct udev_list_entry *entry;

	/*
	* Normal disks use ID_PATH for their physical path.
	*/
	physpath = udev_device_get_property_value(dev, "ID_PATH");
	if (physpath != NULL && strlen(physpath) > 0) {
	(void) strlcpy(bufptr, physpath, buflen);
	return (0);
	}

	/*
	* Device mapper devices are virtual and don't have a physical
	* path. For them we use ID_VDEV instead, which is setup via the
	* /etc/vdev_id.conf file. ID_VDEV provides a persistent path
	* to a virtual device. If you don't have vdev_id.conf setup,
	* you cannot use multipath autoreplace with device mapper.
	*/
	physpath = udev_device_get_property_value(dev, "ID_VDEV");
	if (physpath != NULL && strlen(physpath) > 0) {
	(void) strlcpy(bufptr, physpath, buflen);
	return (0);
	}

	/*
	* For ZFS volumes use the persistent /dev/zvol/dataset identifier
	*/
	entry = udev_device_get_devlinks_list_entry(dev);
	while (entry != NULL) {
	physpath = udev_list_entry_get_name(entry);
	if (strncmp(physpath, ZVOL_ROOT, strlen(ZVOL_ROOT)) == 0) {
	(void) strlcpy(bufptr, physpath, buflen);
	return (0);
	}
	entry = udev_list_entry_get_next(entry);
	}

	/*
	* For all other devices fallback to using the by-uuid name.
	*/
	entry = udev_device_get_devlinks_list_entry(dev);
	while (entry != NULL) {
	physpath = udev_list_entry_get_name(entry);
	if (strncmp(physpath, "/dev/disk/by-uuid", 17) == 0) {
	(void) strlcpy(bufptr, physpath, buflen);
	return (0);
	}
	entry = udev_list_entry_get_next(entry);
	}

	return (ENODATA);
	}

	/*
	* A disk is considered a multipath whole disk when:
	* DEVNAME key value has "dm-"
	* DM_NAME key value has "mpath" prefix
	* DM_UUID key exists
	* ID_PART_TABLE_TYPE key does not exist or is not gpt
	*/
	static boolean_t
	udev_mpath_whole_disk(struct udev_device *dev)
	{
	const char devname, type, *uuid;

	devname = udev_device_get_property_value(dev, "DEVNAME");
	type = udev_device_get_property_value(dev, "ID_PART_TABLE_TYPE");
	uuid = udev_device_get_property_value(dev, "DM_UUID");

	if ((devname != NULL && strncmp(devname, "/dev/dm-", 8) == 0) &&
	((type == NULL) \|\| (strcmp(type, "gpt") != 0)) &&
	(uuid != NULL)) {
	return (B_TRUE);
	}

	return (B_FALSE);
	}

	static int
	udev_device_is_ready(struct udev_device *dev)
	{
	#ifdef HAVE_LIBUDEV_UDEV_DEVICE_GET_IS_INITIALIZED
	return (udev_device_get_is_initialized(dev));
	#else
	/* wait for DEVLINKS property to be initialized */
	return (udev_device_get_property_value(dev, "DEVLINKS") != NULL);
	#endif
	}

	#else

	/* ARGSUSED */
	int
	zfs_device_get_devid(struct udev_device dev, char bufptr, size_t buflen)
	{
	return (ENODATA);
	}

	/* ARGSUSED */
	int
	zfs_device_get_physical(struct udev_device dev, char bufptr, size_t buflen)
	{
	return (ENODATA);
	}

	#endif /* HAVE_LIBUDEV */

	/*
	* Wait up to timeout_ms for udev to set up the device node. The device is
	* considered ready when libudev determines it has been initialized, all of
	* the device links have been verified to exist, and it has been allowed to
	* settle. At this point the device the device can be accessed reliably.
	* Depending on the complexity of the udev rules this process could take
	* several seconds.
	*/
	int
	zpool_label_disk_wait(const char *path, int timeout_ms)
	{
	#ifdef HAVE_LIBUDEV
	struct udev *udev;
	struct udev_device *dev = NULL;
	char nodepath[MAXPATHLEN];
	char *sysname = NULL;
	int ret = ENODEV;
	int settle_ms = 50;
	long sleep_ms = 10;
	hrtime_t start, settle;

	if ((udev = udev_new()) == NULL)
	return (ENXIO);

	start = gethrtime();
	settle = 0;

	do {
	if (sysname == NULL) {
	if (realpath(path, nodepath) != NULL) {
	sysname = strrchr(nodepath, '/') + 1;
	} else {
	(void) usleep(sleep_ms * MILLISEC);
	continue;
	}
	}

	dev = udev_device_new_from_subsystem_sysname(udev,
	"block", sysname);
	if ((dev != NULL) && udev_device_is_ready(dev)) {
	struct udev_list_entry links, link = NULL;

	ret = 0;
	links = udev_device_get_devlinks_list_entry(dev);

	udev_list_entry_foreach(link, links) {
	struct stat64 statbuf;
	const char *name;

	name = udev_list_entry_get_name(link);
	errno = 0;
	if (stat64(name, &statbuf) == 0 && errno == 0)
	continue;

	settle = 0;
	ret = ENODEV;
	break;
	}

	if (ret == 0) {
	if (settle == 0) {
	settle = gethrtime();
	} else if (NSEC2MSEC(gethrtime() - settle) >=
	settle_ms) {
	udev_device_unref(dev);
	break;
	}
	}
	}

	udev_device_unref(dev);
	(void) usleep(sleep_ms * MILLISEC);

	} while (NSEC2MSEC(gethrtime() - start) < timeout_ms);

	udev_unref(udev);

	return (ret);
	#else
	int settle_ms = 50;
	long sleep_ms = 10;
	hrtime_t start, settle;
	struct stat64 statbuf;

	start = gethrtime();
	settle = 0;

	do {
	errno = 0;
	if ((stat64(path, &statbuf) == 0) && (errno == 0)) {
	if (settle == 0)
	settle = gethrtime();
	else if (NSEC2MSEC(gethrtime() - settle) >= settle_ms)
	return (0);
	} else if (errno != ENOENT) {
	return (errno);
	}

	usleep(sleep_ms * MILLISEC);
	} while (NSEC2MSEC(gethrtime() - start) < timeout_ms);

	return (ENODEV);
	#endif /* HAVE_LIBUDEV */
	}

	/*
	* Encode the persistent devices strings
	* used for the vdev disk label
	*/
	static int
	encode_device_strings(const char path, vdev_dev_strs_t ds,
	boolean_t wholedisk)
	{
	#ifdef HAVE_LIBUDEV
	struct udev *udev;
	struct udev_device *dev = NULL;
	char nodepath[MAXPATHLEN];
	char *sysname;
	int ret = ENODEV;
	hrtime_t start;

	if ((udev = udev_new()) == NULL)
	return (ENXIO);

	/* resolve path to a runtime device node instance */
	if (realpath(path, nodepath) == NULL)
	goto no_dev;

	sysname = strrchr(nodepath, '/') + 1;

	/*
	* Wait up to 3 seconds for udev to set up the device node context
	*/
	start = gethrtime();
	do {
	dev = udev_device_new_from_subsystem_sysname(udev, "block",
	sysname);
	if (dev == NULL)
	goto no_dev;
	if (udev_device_is_ready(dev))
	break; /* udev ready */

	udev_device_unref(dev);
	dev = NULL;

	if (NSEC2MSEC(gethrtime() - start) < 10)
	(void) sched_yield(); /* yield/busy wait up to 10ms */
	else
	(void) usleep(10 * MILLISEC);

	} while (NSEC2MSEC(gethrtime() - start) < (3 * MILLISEC));

	if (dev == NULL)
	goto no_dev;

	/*
	* Only whole disks require extra device strings
	*/
	if (!wholedisk && !udev_mpath_whole_disk(dev))
	goto no_dev;

	ret = zfs_device_get_devid(dev, ds->vds_devid, sizeof (ds->vds_devid));
	if (ret != 0)
	goto no_dev_ref;

	/* physical location string (optional) */
	if (zfs_device_get_physical(dev, ds->vds_devphys,
	sizeof (ds->vds_devphys)) != 0) {
	ds->vds_devphys[0] = '\0'; /* empty string --> not available */
	}

	no_dev_ref:
	udev_device_unref(dev);
	no_dev:
	udev_unref(udev);

	return (ret);
	#else
	return (ENOENT);
	#endif
	}

	/*
	* Update a leaf vdev's persistent device strings
	*
	* - only applies for a dedicated leaf vdev (aka whole disk)
	* - updated during pool create\|add\|attach\|import
	* - used for matching device matching during auto-{online,expand,replace}
	* - stored in a leaf disk config label (i.e. alongside 'path' NVP)
	* - these strings are currently not used in kernel (i.e. for vdev_disk_open)
	*
	* single device node example:
	* devid: 'scsi-MG03SCA300_350000494a8cb3d67-part1'
	* phys_path: 'pci-0000:04:00.0-sas-0x50000394a8cb3d67-lun-0'
	*
	* multipath device node example:
	* devid: 'dm-uuid-mpath-35000c5006304de3f'
	*
	* We also store the enclosure sysfs path for turning on enclosure LEDs
	* (if applicable):
	* vdev_enc_sysfs_path: '/sys/class/enclosure/11:0:1:0/SLOT 4'
	*/
	void
	update_vdev_config_dev_strs(nvlist_t *nv)
	{
	vdev_dev_strs_t vds;
	char env, type, *path;
	uint64_t wholedisk = 0;
	char upath, spath;

	/*
	* For the benefit of legacy ZFS implementations, allow
	* for opting out of devid strings in the vdev label.
	*
	* example use:
	* env ZFS_VDEV_DEVID_OPT_OUT=YES zpool import dozer
	*
	* explanation:
	* Older OpenZFS implementations had issues when attempting to
	* display pool config VDEV names if a "devid" NVP value is
	* present in the pool's config.
	*
	* For example, a pool that originated on illumos platform would
	* have a devid value in the config and "zpool status" would fail
	* when listing the config.
	*
	* A pool can be stripped of any "devid" values on import or
	* prevented from adding them on zpool create\|add by setting
	* ZFS_VDEV_DEVID_OPT_OUT.
	*/
	env = getenv("ZFS_VDEV_DEVID_OPT_OUT");
	if (env && (strtoul(env, NULL, 0) > 0 \|\|
	!strncasecmp(env, "YES", 3) \|\| !strncasecmp(env, "ON", 2))) {
	(void) nvlist_remove_all(nv, ZPOOL_CONFIG_DEVID);
	(void) nvlist_remove_all(nv, ZPOOL_CONFIG_PHYS_PATH);
	return;
	}

	if (nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) != 0 \|\|
	strcmp(type, VDEV_TYPE_DISK) != 0) {
	return;
	}
	if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) != 0)
	return;
	(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK, &wholedisk);

	/*
	* Update device string values in the config nvlist.
	*/
	if (encode_device_strings(path, &vds, (boolean_t)wholedisk) == 0) {
	(void) nvlist_add_string(nv, ZPOOL_CONFIG_DEVID, vds.vds_devid);
	if (vds.vds_devphys[0] != '\0') {
	(void) nvlist_add_string(nv, ZPOOL_CONFIG_PHYS_PATH,
	vds.vds_devphys);
	}

	/* Add enclosure sysfs path (if disk is in an enclosure). */
	upath = zfs_get_underlying_path(path);
	spath = zfs_get_enclosure_sysfs_path(upath);
	if (spath)
	nvlist_add_string(nv, ZPOOL_CONFIG_VDEV_ENC_SYSFS_PATH,
	spath);
	else
	nvlist_remove_all(nv, ZPOOL_CONFIG_VDEV_ENC_SYSFS_PATH);

	free(upath);
	free(spath);
	} else {
	/* Clear out any stale entries. */
	(void) nvlist_remove_all(nv, ZPOOL_CONFIG_DEVID);
	(void) nvlist_remove_all(nv, ZPOOL_CONFIG_PHYS_PATH);
	(void) nvlist_remove_all(nv, ZPOOL_CONFIG_VDEV_ENC_SYSFS_PATH);
	}
	}
	diff --git a/sys/contrib/openzfs/lib/libzutil/zutil_device_path.c b/sys/contrib/openzfs/lib/libzutil/zutil_device_path.c
	index bcdc72baa682..435c444b2460 100644
	--- a/sys/contrib/openzfs/lib/libzutil/zutil_device_path.c
	+++ b/sys/contrib/openzfs/lib/libzutil/zutil_device_path.c
	@@ -1,172 +1,188 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	*/

	#include <errno.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include <unistd.h>

	#include <libzutil.h>

	+/* Substring from after the last slash, or the string itself if none */
	+const char *
	+zfs_basename(const char *path)
	+{
	+ const char *bn = strrchr(path, '/');
	+ return (bn ? bn + 1 : path);
	+}
	+
	+/* Return index of last slash or -1 if none */
	+ssize_t
	+zfs_dirnamelen(const char *path)
	+{
	+ const char *end = strrchr(path, '/');
	+ return (end ? end - path : -1);
	+}
	+
	/*
	* Given a shorthand device name check if a file by that name exists in any
	* of the 'zpool_default_import_path' or ZPOOL_IMPORT_PATH directories. If
	* one is found, store its fully qualified path in the 'path' buffer passed
	* by the caller and return 0, otherwise return an error.
	*/
	int
	zfs_resolve_shortname(const char name, char path, size_t len)
	{
	int i, error = -1;
	char dir, env, envdup, tmp = NULL;

	env = getenv("ZPOOL_IMPORT_PATH");
	errno = ENOENT;

	if (env) {
	envdup = strdup(env);
	for (dir = strtok_r(envdup, ":", &tmp);
	dir != NULL && error != 0;
	dir = strtok_r(NULL, ":", &tmp)) {
	(void) snprintf(path, len, "%s/%s", dir, name);
	error = access(path, F_OK);
	}
	free(envdup);
	} else {
	const char * const *zpool_default_import_path;
	size_t count;

	zpool_default_import_path = zpool_default_search_paths(&count);

	for (i = 0; i < count && error < 0; i++) {
	(void) snprintf(path, len, "%s/%s",
	zpool_default_import_path[i], name);
	error = access(path, F_OK);
	}
	}

	return (error ? ENOENT : 0);
	}

	/*
	* Given a shorthand device name look for a match against 'cmp_name'. This
	* is done by checking all prefix expansions using either the default
	* 'zpool_default_import_paths' or the ZPOOL_IMPORT_PATH environment
	* variable. Proper partition suffixes will be appended if this is a
	* whole disk. When a match is found 0 is returned otherwise ENOENT.
	*/
	static int
	zfs_strcmp_shortname(const char name, const char cmp_name, int wholedisk)
	{
	int path_len, cmp_len, i = 0, error = ENOENT;
	char dir, env, envdup = NULL, tmp = NULL;
	char path_name[MAXPATHLEN];
	const char * const *zpool_default_import_path = NULL;
	size_t count;

	cmp_len = strlen(cmp_name);
	env = getenv("ZPOOL_IMPORT_PATH");

	if (env) {
	envdup = strdup(env);
	dir = strtok_r(envdup, ":", &tmp);
	} else {
	zpool_default_import_path = zpool_default_search_paths(&count);
	dir = (char *)zpool_default_import_path[i];
	}

	while (dir) {
	/* Trim trailing directory slashes from ZPOOL_IMPORT_PATH */
	if (env) {
	while (dir[strlen(dir)-1] == '/')
	dir[strlen(dir)-1] = '\0';
	}

	path_len = snprintf(path_name, MAXPATHLEN, "%s/%s", dir, name);
	if (wholedisk)
	path_len = zfs_append_partition(path_name, MAXPATHLEN);

	if ((path_len == cmp_len) && strcmp(path_name, cmp_name) == 0) {
	error = 0;
	break;
	}

	if (env) {
	dir = strtok_r(NULL, ":", &tmp);
	} else if (++i < count) {
	dir = (char *)zpool_default_import_path[i];
	} else {
	dir = NULL;
	}
	}

	if (env)
	free(envdup);

	return (error);
	}

	/*
	* Given either a shorthand or fully qualified path name look for a match
	* against 'cmp'. The passed name will be expanded as needed for comparison
	* purposes and redundant slashes stripped to ensure an accurate match.
	*/
	int
	zfs_strcmp_pathname(const char name, const char cmp, int wholedisk)
	{
	int path_len, cmp_len;
	char path_name[MAXPATHLEN];
	char cmp_name[MAXPATHLEN];
	char dir, tmp = NULL;

	/* Strip redundant slashes if they exist due to ZPOOL_IMPORT_PATH */
	cmp_name[0] = '\0';
	(void) strlcpy(path_name, cmp, sizeof (path_name));
	for (dir = strtok_r(path_name, "/", &tmp);
	dir != NULL;
	dir = strtok_r(NULL, "/", &tmp)) {
	strlcat(cmp_name, "/", sizeof (cmp_name));
	strlcat(cmp_name, dir, sizeof (cmp_name));
	}

	if (name[0] != '/')
	return (zfs_strcmp_shortname(name, cmp_name, wholedisk));

	(void) strlcpy(path_name, name, MAXPATHLEN);
	path_len = strlen(path_name);
	cmp_len = strlen(cmp_name);

	if (wholedisk) {
	path_len = zfs_append_partition(path_name, MAXPATHLEN);
	if (path_len == -1)
	return (ENOMEM);
	}

	if ((path_len != cmp_len) \|\| strcmp(path_name, cmp_name))
	return (ENOENT);

	return (0);
	}
	diff --git a/sys/contrib/openzfs/lib/libzutil/zutil_import.c b/sys/contrib/openzfs/lib/libzutil/zutil_import.c
	index 9d7fcb8d9685..9bd12973fc51 100644
	--- a/sys/contrib/openzfs/lib/libzutil/zutil_import.c
	+++ b/sys/contrib/openzfs/lib/libzutil/zutil_import.c
	@@ -1,1832 +1,1860 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright 2015 Nexenta Systems, Inc. All rights reserved.
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	* Copyright 2015 RackTop Systems.
	* Copyright (c) 2016, Intel Corporation.
	* Copyright (c) 2021, Colm Buckley <colm@tuatha.org>
	*/

	/*
	* Pool import support functions.
	*
	* Used by zpool, ztest, zdb, and zhack to locate importable configs. Since
	* these commands are expected to run in the global zone, we can assume
	* that the devices are all readable when called.
	*
	* To import a pool, we rely on reading the configuration information from the
	* ZFS label of each device. If we successfully read the label, then we
	* organize the configuration information in the following hierarchy:
	*
	* pool guid -> toplevel vdev guid -> label txg
	*
	* Duplicate entries matching this same tuple will be discarded. Once we have
	* examined every device, we pick the best label txg config for each toplevel
	* vdev. We then arrange these toplevel vdevs into a complete pool config, and
	* update any paths that have changed. Finally, we attempt to import the pool
	* using our derived config, and record the results.
	*/

	#include <aio.h>
	#include <ctype.h>
	#include <dirent.h>
	#include <errno.h>
	#include <libintl.h>
	#include <libgen.h>
	#include <stddef.h>
	#include <stdlib.h>
	#include <string.h>
	#include <sys/stat.h>
	#include <unistd.h>
	#include <fcntl.h>
	#include <sys/dktp/fdisk.h>
	#include <sys/vdev_impl.h>
	#include <sys/fs/zfs.h>

	#include <thread_pool.h>
	#include <libzutil.h>
	#include <libnvpair.h>

	#include "zutil_import.h"

	/PRINTFLIKE2/
	static void
	zutil_error_aux(libpc_handle_t hdl, const char fmt, ...)
	{
	va_list ap;

	va_start(ap, fmt);

	(void) vsnprintf(hdl->lpc_desc, sizeof (hdl->lpc_desc), fmt, ap);
	hdl->lpc_desc_active = B_TRUE;

	va_end(ap);
	}

	static void
	zutil_verror(libpc_handle_t hdl, const char error, const char *fmt,
	va_list ap)
	{
	char action[1024];

	(void) vsnprintf(action, sizeof (action), fmt, ap);

	if (hdl->lpc_desc_active)
	hdl->lpc_desc_active = B_FALSE;
	else
	hdl->lpc_desc[0] = '\0';

	if (hdl->lpc_printerr) {
	if (hdl->lpc_desc[0] != '\0')
	error = hdl->lpc_desc;

	(void) fprintf(stderr, "%s: %s\n", action, error);
	}
	}

	/PRINTFLIKE3/
	static int
	zutil_error_fmt(libpc_handle_t hdl, const char error, const char *fmt, ...)
	{
	va_list ap;

	va_start(ap, fmt);

	zutil_verror(hdl, error, fmt, ap);

	va_end(ap);

	return (-1);
	}

	static int
	zutil_error(libpc_handle_t hdl, const char error, const char *msg)
	{
	return (zutil_error_fmt(hdl, error, "%s", msg));
	}

	static int
	zutil_no_memory(libpc_handle_t *hdl)
	{
	zutil_error(hdl, EZFS_NOMEM, "internal error");
	exit(1);
	}

	void *
	zutil_alloc(libpc_handle_t *hdl, size_t size)
	{
	void *data;

	if ((data = calloc(1, size)) == NULL)
	(void) zutil_no_memory(hdl);

	return (data);
	}

	char *
	zutil_strdup(libpc_handle_t hdl, const char str)
	{
	char *ret;

	if ((ret = strdup(str)) == NULL)
	(void) zutil_no_memory(hdl);

	return (ret);
	}

	+static char *
	+zutil_strndup(libpc_handle_t hdl, const char str, size_t n)
	+{
	+ char *ret;
	+
	+ if ((ret = strndup(str, n)) == NULL)
	+ (void) zutil_no_memory(hdl);
	+
	+ return (ret);
	+}
	+
	/*
	* Intermediate structures used to gather configuration information.
	*/
	typedef struct config_entry {
	uint64_t ce_txg;
	nvlist_t *ce_config;
	struct config_entry *ce_next;
	} config_entry_t;

	typedef struct vdev_entry {
	uint64_t ve_guid;
	config_entry_t *ve_configs;
	struct vdev_entry *ve_next;
	} vdev_entry_t;

	typedef struct pool_entry {
	uint64_t pe_guid;
	vdev_entry_t *pe_vdevs;
	struct pool_entry *pe_next;
	} pool_entry_t;

	typedef struct name_entry {
	char *ne_name;
	uint64_t ne_guid;
	uint64_t ne_order;
	uint64_t ne_num_labels;
	struct name_entry *ne_next;
	} name_entry_t;

	typedef struct pool_list {
	pool_entry_t *pools;
	name_entry_t *names;
	} pool_list_t;

	/*
	* Go through and fix up any path and/or devid information for the given vdev
	* configuration.
	*/
	static int
	fix_paths(libpc_handle_t hdl, nvlist_t nv, name_entry_t *names)
	{
	nvlist_t **child;
	uint_t c, children;
	uint64_t guid;
	name_entry_t ne, best;
	char *path;

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
	&child, &children) == 0) {
	for (c = 0; c < children; c++)
	if (fix_paths(hdl, child[c], names) != 0)
	return (-1);
	return (0);
	}

	/*
	* This is a leaf (file or disk) vdev. In either case, go through
	* the name list and see if we find a matching guid. If so, replace
	* the path and see if we can calculate a new devid.
	*
	* There may be multiple names associated with a particular guid, in
	* which case we have overlapping partitions or multiple paths to the
	* same disk. In this case we prefer to use the path name which
	* matches the ZPOOL_CONFIG_PATH. If no matching entry is found we
	* use the lowest order device which corresponds to the first match
	* while traversing the ZPOOL_IMPORT_PATH search path.
	*/
	verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) == 0);
	if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) != 0)
	path = NULL;

	best = NULL;
	for (ne = names; ne != NULL; ne = ne->ne_next) {
	if (ne->ne_guid == guid) {
	if (path == NULL) {
	best = ne;
	break;
	}

	if ((strlen(path) == strlen(ne->ne_name)) &&
	strncmp(path, ne->ne_name, strlen(path)) == 0) {
	best = ne;
	break;
	}

	if (best == NULL) {
	best = ne;
	continue;
	}

	/* Prefer paths with move vdev labels. */
	if (ne->ne_num_labels > best->ne_num_labels) {
	best = ne;
	continue;
	}

	/* Prefer paths earlier in the search order. */
	if (ne->ne_num_labels == best->ne_num_labels &&
	ne->ne_order < best->ne_order) {
	best = ne;
	continue;
	}
	}
	}

	if (best == NULL)
	return (0);

	if (nvlist_add_string(nv, ZPOOL_CONFIG_PATH, best->ne_name) != 0)
	return (-1);

	update_vdev_config_dev_strs(nv);

	return (0);
	}

	/*
	* Add the given configuration to the list of known devices.
	*/
	static int
	add_config(libpc_handle_t hdl, pool_list_t pl, const char *path,
	int order, int num_labels, nvlist_t *config)
	{
	uint64_t pool_guid, vdev_guid, top_guid, txg, state;
	pool_entry_t *pe;
	vdev_entry_t *ve;
	config_entry_t *ce;
	name_entry_t *ne;

	/*
	* If this is a hot spare not currently in use or level 2 cache
	* device, add it to the list of names to translate, but don't do
	* anything else.
	*/
	if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
	&state) == 0 &&
	(state == POOL_STATE_SPARE \|\| state == POOL_STATE_L2CACHE) &&
	nvlist_lookup_uint64(config, ZPOOL_CONFIG_GUID, &vdev_guid) == 0) {
	if ((ne = zutil_alloc(hdl, sizeof (name_entry_t))) == NULL)
	return (-1);

	if ((ne->ne_name = zutil_strdup(hdl, path)) == NULL) {
	free(ne);
	return (-1);
	}
	ne->ne_guid = vdev_guid;
	ne->ne_order = order;
	ne->ne_num_labels = num_labels;
	ne->ne_next = pl->names;
	pl->names = ne;

	return (0);
	}

	/*
	* If we have a valid config but cannot read any of these fields, then
	* it means we have a half-initialized label. In vdev_label_init()
	* we write a label with txg == 0 so that we can identify the device
	* in case the user refers to the same disk later on. If we fail to
	* create the pool, we'll be left with a label in this state
	* which should not be considered part of a valid pool.
	*/
	if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
	&pool_guid) != 0 \|\|
	nvlist_lookup_uint64(config, ZPOOL_CONFIG_GUID,
	&vdev_guid) != 0 \|\|
	nvlist_lookup_uint64(config, ZPOOL_CONFIG_TOP_GUID,
	&top_guid) != 0 \|\|
	nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG,
	&txg) != 0 \|\| txg == 0) {
	return (0);
	}

	/*
	* First, see if we know about this pool. If not, then add it to the
	* list of known pools.
	*/
	for (pe = pl->pools; pe != NULL; pe = pe->pe_next) {
	if (pe->pe_guid == pool_guid)
	break;
	}

	if (pe == NULL) {
	if ((pe = zutil_alloc(hdl, sizeof (pool_entry_t))) == NULL) {
	return (-1);
	}
	pe->pe_guid = pool_guid;
	pe->pe_next = pl->pools;
	pl->pools = pe;
	}

	/*
	* Second, see if we know about this toplevel vdev. Add it if its
	* missing.
	*/
	for (ve = pe->pe_vdevs; ve != NULL; ve = ve->ve_next) {
	if (ve->ve_guid == top_guid)
	break;
	}

	if (ve == NULL) {
	if ((ve = zutil_alloc(hdl, sizeof (vdev_entry_t))) == NULL) {
	return (-1);
	}
	ve->ve_guid = top_guid;
	ve->ve_next = pe->pe_vdevs;
	pe->pe_vdevs = ve;
	}

	/*
	* Third, see if we have a config with a matching transaction group. If
	* so, then we do nothing. Otherwise, add it to the list of known
	* configs.
	*/
	for (ce = ve->ve_configs; ce != NULL; ce = ce->ce_next) {
	if (ce->ce_txg == txg)
	break;
	}

	if (ce == NULL) {
	if ((ce = zutil_alloc(hdl, sizeof (config_entry_t))) == NULL) {
	return (-1);
	}
	ce->ce_txg = txg;
	ce->ce_config = fnvlist_dup(config);
	ce->ce_next = ve->ve_configs;
	ve->ve_configs = ce;
	}

	/*
	* At this point we've successfully added our config to the list of
	* known configs. The last thing to do is add the vdev guid -> path
	* mappings so that we can fix up the configuration as necessary before
	* doing the import.
	*/
	if ((ne = zutil_alloc(hdl, sizeof (name_entry_t))) == NULL)
	return (-1);

	if ((ne->ne_name = zutil_strdup(hdl, path)) == NULL) {
	free(ne);
	return (-1);
	}

	ne->ne_guid = vdev_guid;
	ne->ne_order = order;
	ne->ne_num_labels = num_labels;
	ne->ne_next = pl->names;
	pl->names = ne;

	return (0);
	}

	static int
	zutil_pool_active(libpc_handle_t hdl, const char name, uint64_t guid,
	boolean_t *isactive)
	{
	ASSERT(hdl->lpc_ops->pco_pool_active != NULL);

	int error = hdl->lpc_ops->pco_pool_active(hdl->lpc_lib_handle, name,
	guid, isactive);

	return (error);
	}

	static nvlist_t *
	zutil_refresh_config(libpc_handle_t hdl, nvlist_t tryconfig)
	{
	ASSERT(hdl->lpc_ops->pco_refresh_config != NULL);

	return (hdl->lpc_ops->pco_refresh_config(hdl->lpc_lib_handle,
	tryconfig));
	}

	/*
	* Determine if the vdev id is a hole in the namespace.
	*/
	static boolean_t
	vdev_is_hole(uint64_t *hole_array, uint_t holes, uint_t id)
	{
	int c;

	for (c = 0; c < holes; c++) {

	/* Top-level is a hole */
	if (hole_array[c] == id)
	return (B_TRUE);
	}
	return (B_FALSE);
	}

	/*
	* Convert our list of pools into the definitive set of configurations. We
	* start by picking the best config for each toplevel vdev. Once that's done,
	* we assemble the toplevel vdevs into a full config for the pool. We make a
	* pass to fix up any incorrect paths, and then add it to the main list to
	* return to the user.
	*/
	static nvlist_t *
	get_configs(libpc_handle_t hdl, pool_list_t pl, boolean_t active_ok,
	nvlist_t *policy)
	{
	pool_entry_t *pe;
	vdev_entry_t *ve;
	config_entry_t *ce;
	nvlist_t ret = NULL, config = NULL, tmp = NULL, nvtop, *nvroot;
	nvlist_t spares, l2cache;
	uint_t i, nspares, nl2cache;
	boolean_t config_seen;
	uint64_t best_txg;
	char name, hostname = NULL;
	uint64_t guid;
	uint_t children = 0;
	nvlist_t **child = NULL;
	uint_t holes;
	uint64_t *hole_array, max_id;
	uint_t c;
	boolean_t isactive;
	uint64_t hostid;
	nvlist_t *nvl;
	boolean_t valid_top_config = B_FALSE;

	if (nvlist_alloc(&ret, 0, 0) != 0)
	goto nomem;

	for (pe = pl->pools; pe != NULL; pe = pe->pe_next) {
	uint64_t id, max_txg = 0;

	if (nvlist_alloc(&config, NV_UNIQUE_NAME, 0) != 0)
	goto nomem;
	config_seen = B_FALSE;

	/*
	* Iterate over all toplevel vdevs. Grab the pool configuration
	* from the first one we find, and then go through the rest and
	* add them as necessary to the 'vdevs' member of the config.
	*/
	for (ve = pe->pe_vdevs; ve != NULL; ve = ve->ve_next) {

	/*
	* Determine the best configuration for this vdev by
	* selecting the config with the latest transaction
	* group.
	*/
	best_txg = 0;
	for (ce = ve->ve_configs; ce != NULL;
	ce = ce->ce_next) {

	if (ce->ce_txg > best_txg) {
	tmp = ce->ce_config;
	best_txg = ce->ce_txg;
	}
	}

	/*
	* We rely on the fact that the max txg for the
	* pool will contain the most up-to-date information
	* about the valid top-levels in the vdev namespace.
	*/
	if (best_txg > max_txg) {
	(void) nvlist_remove(config,
	ZPOOL_CONFIG_VDEV_CHILDREN,
	DATA_TYPE_UINT64);
	(void) nvlist_remove(config,
	ZPOOL_CONFIG_HOLE_ARRAY,
	DATA_TYPE_UINT64_ARRAY);

	max_txg = best_txg;
	hole_array = NULL;
	holes = 0;
	max_id = 0;
	valid_top_config = B_FALSE;

	if (nvlist_lookup_uint64(tmp,
	ZPOOL_CONFIG_VDEV_CHILDREN, &max_id) == 0) {
	verify(nvlist_add_uint64(config,
	ZPOOL_CONFIG_VDEV_CHILDREN,
	max_id) == 0);
	valid_top_config = B_TRUE;
	}

	if (nvlist_lookup_uint64_array(tmp,
	ZPOOL_CONFIG_HOLE_ARRAY, &hole_array,
	&holes) == 0) {
	verify(nvlist_add_uint64_array(config,
	ZPOOL_CONFIG_HOLE_ARRAY,
	hole_array, holes) == 0);
	}
	}

	if (!config_seen) {
	/*
	* Copy the relevant pieces of data to the pool
	* configuration:
	*
	* version
	* pool guid
	* name
	* comment (if available)
	* compatibility features (if available)
	* pool state
	* hostid (if available)
	* hostname (if available)
	*/
	uint64_t state, version;
	char *comment = NULL;
	char *compatibility = NULL;

	version = fnvlist_lookup_uint64(tmp,
	ZPOOL_CONFIG_VERSION);
	fnvlist_add_uint64(config,
	ZPOOL_CONFIG_VERSION, version);
	guid = fnvlist_lookup_uint64(tmp,
	ZPOOL_CONFIG_POOL_GUID);
	fnvlist_add_uint64(config,
	ZPOOL_CONFIG_POOL_GUID, guid);
	name = fnvlist_lookup_string(tmp,
	ZPOOL_CONFIG_POOL_NAME);
	fnvlist_add_string(config,
	ZPOOL_CONFIG_POOL_NAME, name);

	if (nvlist_lookup_string(tmp,
	ZPOOL_CONFIG_COMMENT, &comment) == 0)
	fnvlist_add_string(config,
	ZPOOL_CONFIG_COMMENT, comment);

	if (nvlist_lookup_string(tmp,
	ZPOOL_CONFIG_COMPATIBILITY,
	&compatibility) == 0)
	fnvlist_add_string(config,
	ZPOOL_CONFIG_COMPATIBILITY,
	compatibility);

	state = fnvlist_lookup_uint64(tmp,
	ZPOOL_CONFIG_POOL_STATE);
	fnvlist_add_uint64(config,
	ZPOOL_CONFIG_POOL_STATE, state);

	hostid = 0;
	if (nvlist_lookup_uint64(tmp,
	ZPOOL_CONFIG_HOSTID, &hostid) == 0) {
	fnvlist_add_uint64(config,
	ZPOOL_CONFIG_HOSTID, hostid);
	hostname = fnvlist_lookup_string(tmp,
	ZPOOL_CONFIG_HOSTNAME);
	fnvlist_add_string(config,
	ZPOOL_CONFIG_HOSTNAME, hostname);
	}

	config_seen = B_TRUE;
	}

	/*
	* Add this top-level vdev to the child array.
	*/
	verify(nvlist_lookup_nvlist(tmp,
	ZPOOL_CONFIG_VDEV_TREE, &nvtop) == 0);
	verify(nvlist_lookup_uint64(nvtop, ZPOOL_CONFIG_ID,
	&id) == 0);

	if (id >= children) {
	nvlist_t **newchild;

	newchild = zutil_alloc(hdl, (id + 1) *
	sizeof (nvlist_t *));
	if (newchild == NULL)
	goto nomem;

	for (c = 0; c < children; c++)
	newchild[c] = child[c];

	free(child);
	child = newchild;
	children = id + 1;
	}
	if (nvlist_dup(nvtop, &child[id], 0) != 0)
	goto nomem;

	}

	/*
	* If we have information about all the top-levels then
	* clean up the nvlist which we've constructed. This
	* means removing any extraneous devices that are
	* beyond the valid range or adding devices to the end
	* of our array which appear to be missing.
	*/
	if (valid_top_config) {
	if (max_id < children) {
	for (c = max_id; c < children; c++)
	nvlist_free(child[c]);
	children = max_id;
	} else if (max_id > children) {
	nvlist_t **newchild;

	newchild = zutil_alloc(hdl, (max_id) *
	sizeof (nvlist_t *));
	if (newchild == NULL)
	goto nomem;

	for (c = 0; c < children; c++)
	newchild[c] = child[c];

	free(child);
	child = newchild;
	children = max_id;
	}
	}

	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
	&guid) == 0);

	/*
	* The vdev namespace may contain holes as a result of
	* device removal. We must add them back into the vdev
	* tree before we process any missing devices.
	*/
	if (holes > 0) {
	ASSERT(valid_top_config);

	for (c = 0; c < children; c++) {
	nvlist_t *holey;

	if (child[c] != NULL \|\|
	!vdev_is_hole(hole_array, holes, c))
	continue;

	if (nvlist_alloc(&holey, NV_UNIQUE_NAME,
	0) != 0)
	goto nomem;

	/*
	* Holes in the namespace are treated as
	* "hole" top-level vdevs and have a
	* special flag set on them.
	*/
	if (nvlist_add_string(holey,
	ZPOOL_CONFIG_TYPE,
	VDEV_TYPE_HOLE) != 0 \|\|
	nvlist_add_uint64(holey,
	ZPOOL_CONFIG_ID, c) != 0 \|\|
	nvlist_add_uint64(holey,
	ZPOOL_CONFIG_GUID, 0ULL) != 0) {
	nvlist_free(holey);
	goto nomem;
	}
	child[c] = holey;
	}
	}

	/*
	* Look for any missing top-level vdevs. If this is the case,
	* create a faked up 'missing' vdev as a placeholder. We cannot
	* simply compress the child array, because the kernel performs
	* certain checks to make sure the vdev IDs match their location
	* in the configuration.
	*/
	for (c = 0; c < children; c++) {
	if (child[c] == NULL) {
	nvlist_t *missing;
	if (nvlist_alloc(&missing, NV_UNIQUE_NAME,
	0) != 0)
	goto nomem;
	if (nvlist_add_string(missing,
	ZPOOL_CONFIG_TYPE,
	VDEV_TYPE_MISSING) != 0 \|\|
	nvlist_add_uint64(missing,
	ZPOOL_CONFIG_ID, c) != 0 \|\|
	nvlist_add_uint64(missing,
	ZPOOL_CONFIG_GUID, 0ULL) != 0) {
	nvlist_free(missing);
	goto nomem;
	}
	child[c] = missing;
	}
	}

	/*
	* Put all of this pool's top-level vdevs into a root vdev.
	*/
	if (nvlist_alloc(&nvroot, NV_UNIQUE_NAME, 0) != 0)
	goto nomem;
	if (nvlist_add_string(nvroot, ZPOOL_CONFIG_TYPE,
	VDEV_TYPE_ROOT) != 0 \|\|
	nvlist_add_uint64(nvroot, ZPOOL_CONFIG_ID, 0ULL) != 0 \|\|
	nvlist_add_uint64(nvroot, ZPOOL_CONFIG_GUID, guid) != 0 \|\|
	nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
	child, children) != 0) {
	nvlist_free(nvroot);
	goto nomem;
	}

	for (c = 0; c < children; c++)
	nvlist_free(child[c]);
	free(child);
	children = 0;
	child = NULL;

	/*
	* Go through and fix up any paths and/or devids based on our
	* known list of vdev GUID -> path mappings.
	*/
	if (fix_paths(hdl, nvroot, pl->names) != 0) {
	nvlist_free(nvroot);
	goto nomem;
	}

	/*
	* Add the root vdev to this pool's configuration.
	*/
	if (nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
	nvroot) != 0) {
	nvlist_free(nvroot);
	goto nomem;
	}
	nvlist_free(nvroot);

	/*
	* zdb uses this path to report on active pools that were
	* imported or created using -R.
	*/
	if (active_ok)
	goto add_pool;

	/*
	* Determine if this pool is currently active, in which case we
	* can't actually import it.
	*/
	verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
	&name) == 0);
	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
	&guid) == 0);

	if (zutil_pool_active(hdl, name, guid, &isactive) != 0)
	goto error;

	if (isactive) {
	nvlist_free(config);
	config = NULL;
	continue;
	}

	if (policy != NULL) {
	if (nvlist_add_nvlist(config, ZPOOL_LOAD_POLICY,
	policy) != 0)
	goto nomem;
	}

	if ((nvl = zutil_refresh_config(hdl, config)) == NULL) {
	nvlist_free(config);
	config = NULL;
	continue;
	}

	nvlist_free(config);
	config = nvl;

	/*
	* Go through and update the paths for spares, now that we have
	* them.
	*/
	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
	&nvroot) == 0);
	if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
	&spares, &nspares) == 0) {
	for (i = 0; i < nspares; i++) {
	if (fix_paths(hdl, spares[i], pl->names) != 0)
	goto nomem;
	}
	}

	/*
	* Update the paths for l2cache devices.
	*/
	if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
	&l2cache, &nl2cache) == 0) {
	for (i = 0; i < nl2cache; i++) {
	if (fix_paths(hdl, l2cache[i], pl->names) != 0)
	goto nomem;
	}
	}

	/*
	* Restore the original information read from the actual label.
	*/
	(void) nvlist_remove(config, ZPOOL_CONFIG_HOSTID,
	DATA_TYPE_UINT64);
	(void) nvlist_remove(config, ZPOOL_CONFIG_HOSTNAME,
	DATA_TYPE_STRING);
	if (hostid != 0) {
	verify(nvlist_add_uint64(config, ZPOOL_CONFIG_HOSTID,
	hostid) == 0);
	verify(nvlist_add_string(config, ZPOOL_CONFIG_HOSTNAME,
	hostname) == 0);
	}

	add_pool:
	/*
	* Add this pool to the list of configs.
	*/
	verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
	&name) == 0);

	if (nvlist_add_nvlist(ret, name, config) != 0)
	goto nomem;

	nvlist_free(config);
	config = NULL;
	}

	return (ret);

	nomem:
	(void) zutil_no_memory(hdl);
	error:
	nvlist_free(config);
	nvlist_free(ret);
	for (c = 0; c < children; c++)
	nvlist_free(child[c]);
	free(child);

	return (NULL);
	}

	/*
	* Return the offset of the given label.
	*/
	static uint64_t
	label_offset(uint64_t size, int l)
	{
	ASSERT(P2PHASE_TYPED(size, sizeof (vdev_label_t), uint64_t) == 0);
	return (l * sizeof (vdev_label_t) + (l < VDEV_LABELS / 2 ?
	0 : size - VDEV_LABELS * sizeof (vdev_label_t)));
	}

	/*
	* The same description applies as to zpool_read_label below,
	* except here we do it without aio, presumably because an aio call
	* errored out in a way we think not using it could circumvent.
	*/
	static int
	zpool_read_label_slow(int fd, nvlist_t *config, int num_labels)
	{
	struct stat64 statbuf;
	int l, count = 0;
	vdev_phys_t *label;
	nvlist_t *expected_config = NULL;
	uint64_t expected_guid = 0, size;
	int error;

	*config = NULL;

	if (fstat64_blk(fd, &statbuf) == -1)
	return (0);
	size = P2ALIGN_TYPED(statbuf.st_size, sizeof (vdev_label_t), uint64_t);

	error = posix_memalign((void *)&label, PAGESIZE, sizeof (label));
	if (error)
	return (-1);

	for (l = 0; l < VDEV_LABELS; l++) {
	uint64_t state, guid, txg;
	off_t offset = label_offset(size, l) + VDEV_SKIP_SIZE;

	if (pread64(fd, label, sizeof (vdev_phys_t),
	offset) != sizeof (vdev_phys_t))
	continue;

	if (nvlist_unpack(label->vp_nvlist,
	sizeof (label->vp_nvlist), config, 0) != 0)
	continue;

	if (nvlist_lookup_uint64(*config, ZPOOL_CONFIG_GUID,
	&guid) != 0 \|\| guid == 0) {
	nvlist_free(*config);
	continue;
	}

	if (nvlist_lookup_uint64(*config, ZPOOL_CONFIG_POOL_STATE,
	&state) != 0 \|\| state > POOL_STATE_L2CACHE) {
	nvlist_free(*config);
	continue;
	}

	if (state != POOL_STATE_SPARE && state != POOL_STATE_L2CACHE &&
	(nvlist_lookup_uint64(*config, ZPOOL_CONFIG_POOL_TXG,
	&txg) != 0 \|\| txg == 0)) {
	nvlist_free(*config);
	continue;
	}

	if (expected_guid) {
	if (expected_guid == guid)
	count++;

	nvlist_free(*config);
	} else {
	expected_config = *config;
	expected_guid = guid;
	count++;
	}
	}

	if (num_labels != NULL)
	*num_labels = count;

	free(label);
	*config = expected_config;

	return (0);
	}

	/*
	* Given a file descriptor, read the label information and return an nvlist
	* describing the configuration, if there is one. The number of valid
	* labels found will be returned in num_labels when non-NULL.
	*/
	int
	zpool_read_label(int fd, nvlist_t *config, int num_labels)
	{
	struct stat64 statbuf;
	struct aiocb aiocbs[VDEV_LABELS];
	struct aiocb *aiocbps[VDEV_LABELS];
	vdev_phys_t *labels;
	nvlist_t *expected_config = NULL;
	uint64_t expected_guid = 0, size;
	int error, l, count = 0;

	*config = NULL;

	if (fstat64_blk(fd, &statbuf) == -1)
	return (0);
	size = P2ALIGN_TYPED(statbuf.st_size, sizeof (vdev_label_t), uint64_t);

	error = posix_memalign((void **)&labels, PAGESIZE,
	VDEV_LABELS * sizeof (*labels));
	if (error)
	return (-1);

	memset(aiocbs, 0, sizeof (aiocbs));
	for (l = 0; l < VDEV_LABELS; l++) {
	off_t offset = label_offset(size, l) + VDEV_SKIP_SIZE;

	aiocbs[l].aio_fildes = fd;
	aiocbs[l].aio_offset = offset;
	aiocbs[l].aio_buf = &labels[l];
	aiocbs[l].aio_nbytes = sizeof (vdev_phys_t);
	aiocbs[l].aio_lio_opcode = LIO_READ;
	aiocbps[l] = &aiocbs[l];
	}

	if (lio_listio(LIO_WAIT, aiocbps, VDEV_LABELS, NULL) != 0) {
	int saved_errno = errno;
	boolean_t do_slow = B_FALSE;
	error = -1;

	if (errno == EAGAIN \|\| errno == EINTR \|\| errno == EIO) {
	/*
	* A portion of the requests may have been submitted.
	* Clean them up.
	*/
	for (l = 0; l < VDEV_LABELS; l++) {
	errno = 0;
	switch (aio_error(&aiocbs[l])) {
	case EINVAL:
	break;
	case EINPROGRESS:
	// This shouldn't be possible to
	// encounter, die if we do.
	ASSERT(B_FALSE);
	case EOPNOTSUPP:
	case ENOSYS:
	do_slow = B_TRUE;
	case 0:
	default:
	(void) aio_return(&aiocbs[l]);
	}
	}
	}
	if (do_slow) {
	/*
	* At least some IO involved access unsafe-for-AIO
	* files. Let's try again, without AIO this time.
	*/
	error = zpool_read_label_slow(fd, config, num_labels);
	saved_errno = errno;
	}
	free(labels);
	errno = saved_errno;
	return (error);
	}

	for (l = 0; l < VDEV_LABELS; l++) {
	uint64_t state, guid, txg;

	if (aio_return(&aiocbs[l]) != sizeof (vdev_phys_t))
	continue;

	if (nvlist_unpack(labels[l].vp_nvlist,
	sizeof (labels[l].vp_nvlist), config, 0) != 0)
	continue;

	if (nvlist_lookup_uint64(*config, ZPOOL_CONFIG_GUID,
	&guid) != 0 \|\| guid == 0) {
	nvlist_free(*config);
	continue;
	}

	if (nvlist_lookup_uint64(*config, ZPOOL_CONFIG_POOL_STATE,
	&state) != 0 \|\| state > POOL_STATE_L2CACHE) {
	nvlist_free(*config);
	continue;
	}

	if (state != POOL_STATE_SPARE && state != POOL_STATE_L2CACHE &&
	(nvlist_lookup_uint64(*config, ZPOOL_CONFIG_POOL_TXG,
	&txg) != 0 \|\| txg == 0)) {
	nvlist_free(*config);
	continue;
	}

	if (expected_guid) {
	if (expected_guid == guid)
	count++;

	nvlist_free(*config);
	} else {
	expected_config = *config;
	expected_guid = guid;
	count++;
	}
	}

	if (num_labels != NULL)
	*num_labels = count;

	free(labels);
	*config = expected_config;

	return (0);
	}

	/*
	* Sorted by full path and then vdev guid to allow for multiple entries with
	* the same full path name. This is required because it's possible to
	* have multiple block devices with labels that refer to the same
	* ZPOOL_CONFIG_PATH yet have different vdev guids. In this case both
	* entries need to be added to the cache. Scenarios where this can occur
	* include overwritten pool labels, devices which are visible from multiple
	* hosts and multipath devices.
	*/
	int
	slice_cache_compare(const void arg1, const void arg2)
	{
	const char nm1 = ((rdsk_node_t )arg1)->rn_name;
	const char nm2 = ((rdsk_node_t )arg2)->rn_name;
	uint64_t guid1 = ((rdsk_node_t *)arg1)->rn_vdev_guid;
	uint64_t guid2 = ((rdsk_node_t *)arg2)->rn_vdev_guid;
	int rv;

	rv = TREE_ISIGN(strcmp(nm1, nm2));
	if (rv)
	return (rv);

	return (TREE_CMP(guid1, guid2));
	}

	static int
	label_paths_impl(libpc_handle_t hdl, nvlist_t nvroot, uint64_t pool_guid,
	uint64_t vdev_guid, char path, char devid)
	{
	nvlist_t **child;
	uint_t c, children;
	uint64_t guid;
	char *val;
	int error;

	if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
	&child, &children) == 0) {
	for (c = 0; c < children; c++) {
	error = label_paths_impl(hdl, child[c],
	pool_guid, vdev_guid, path, devid);
	if (error)
	return (error);
	}
	return (0);
	}

	if (nvroot == NULL)
	return (0);

	error = nvlist_lookup_uint64(nvroot, ZPOOL_CONFIG_GUID, &guid);
	if ((error != 0) \|\| (guid != vdev_guid))
	return (0);

	error = nvlist_lookup_string(nvroot, ZPOOL_CONFIG_PATH, &val);
	if (error == 0)
	*path = val;

	error = nvlist_lookup_string(nvroot, ZPOOL_CONFIG_DEVID, &val);
	if (error == 0)
	*devid = val;

	return (0);
	}

	/*
	* Given a disk label fetch the ZPOOL_CONFIG_PATH and ZPOOL_CONFIG_DEVID
	* and store these strings as config_path and devid_path respectively.
	* The returned pointers are only valid as long as label remains valid.
	*/
	int
	label_paths(libpc_handle_t hdl, nvlist_t label, char path, char devid)
	{
	nvlist_t *nvroot;
	uint64_t pool_guid;
	uint64_t vdev_guid;

	*path = NULL;
	*devid = NULL;

	if (nvlist_lookup_nvlist(label, ZPOOL_CONFIG_VDEV_TREE, &nvroot) \|\|
	nvlist_lookup_uint64(label, ZPOOL_CONFIG_POOL_GUID, &pool_guid) \|\|
	nvlist_lookup_uint64(label, ZPOOL_CONFIG_GUID, &vdev_guid))
	return (ENOENT);

	return (label_paths_impl(hdl, nvroot, pool_guid, vdev_guid, path,
	devid));
	}

	static void
	zpool_find_import_scan_add_slice(libpc_handle_t hdl, pthread_mutex_t lock,
	avl_tree_t cache, const char path, const char *name, int order)
	{
	avl_index_t where;
	rdsk_node_t *slice;

	slice = zutil_alloc(hdl, sizeof (rdsk_node_t));
	if (asprintf(&slice->rn_name, "%s/%s", path, name) == -1) {
	free(slice);
	return;
	}
	slice->rn_vdev_guid = 0;
	slice->rn_lock = lock;
	slice->rn_avl = cache;
	slice->rn_hdl = hdl;
	slice->rn_order = order + IMPORT_ORDER_SCAN_OFFSET;
	slice->rn_labelpaths = B_FALSE;

	pthread_mutex_lock(lock);
	if (avl_find(cache, slice, &where)) {
	free(slice->rn_name);
	free(slice);
	} else {
	avl_insert(cache, slice, where);
	}
	pthread_mutex_unlock(lock);
	}

	static int
	zpool_find_import_scan_dir(libpc_handle_t hdl, pthread_mutex_t lock,
	avl_tree_t cache, const char dir, int order)
	{
	int error;
	char path[MAXPATHLEN];
	struct dirent64 *dp;
	DIR *dirp;

	if (realpath(dir, path) == NULL) {
	error = errno;
	if (error == ENOENT)
	return (0);

	zutil_error_aux(hdl, strerror(error));
	(void) zutil_error_fmt(hdl, EZFS_BADPATH, dgettext(
	TEXT_DOMAIN, "cannot resolve path '%s'"), dir);
	return (error);
	}

	dirp = opendir(path);
	if (dirp == NULL) {
	error = errno;
	zutil_error_aux(hdl, strerror(error));
	(void) zutil_error_fmt(hdl, EZFS_BADPATH,
	dgettext(TEXT_DOMAIN, "cannot open '%s'"), path);
	return (error);
	}

	while ((dp = readdir64(dirp)) != NULL) {
	const char *name = dp->d_name;
	- if (name[0] == '.' &&
	- (name[1] == 0 \|\| (name[1] == '.' && name[2] == 0)))
	+ if (strcmp(name, ".") == 0 \|\| strcmp(name, "..") == 0)
	+ continue;
	+
	+ switch (dp->d_type) {
	+ case DT_UNKNOWN:
	+ case DT_BLK:
	+#ifdef __FreeBSD__
	+ case DT_CHR:
	+#endif
	+ case DT_REG:
	+ break;
	+ default:
	continue;
	+ }

	zpool_find_import_scan_add_slice(hdl, lock, cache, path, name,
	order);
	}

	(void) closedir(dirp);
	return (0);
	}

	static int
	zpool_find_import_scan_path(libpc_handle_t hdl, pthread_mutex_t lock,
	avl_tree_t cache, const char dir, int order)
	{
	int error = 0;
	char path[MAXPATHLEN];
	- char d, b;
	- char dpath, name;
	+ char *d = NULL;
	+ ssize_t dl;
	+ const char dpath, name;

	/*
	- * Separate the directory part and last part of the
	- * path. We do this so that we can get the realpath of
	+ * Separate the directory and the basename.
	+ * We do this so that we can get the realpath of
	* the directory. We don't get the realpath on the
	* whole path because if it's a symlink, we want the
	* path of the symlink not where it points to.
	*/
	- d = zutil_strdup(hdl, dir);
	- b = zutil_strdup(hdl, dir);
	- dpath = dirname(d);
	- name = basename(b);
	+ name = zfs_basename(dir);
	+ if ((dl = zfs_dirnamelen(dir)) == -1)
	+ dpath = ".";
	+ else
	+ dpath = d = zutil_strndup(hdl, dir, dl);

	if (realpath(dpath, path) == NULL) {
	error = errno;
	if (error == ENOENT) {
	error = 0;
	goto out;
	}

	zutil_error_aux(hdl, strerror(error));
	(void) zutil_error_fmt(hdl, EZFS_BADPATH, dgettext(
	TEXT_DOMAIN, "cannot resolve path '%s'"), dir);
	goto out;
	}

	zpool_find_import_scan_add_slice(hdl, lock, cache, path, name, order);

	out:
	- free(b);
	free(d);
	return (error);
	}

	/*
	* Scan a list of directories for zfs devices.
	*/
	static int
	zpool_find_import_scan(libpc_handle_t hdl, pthread_mutex_t lock,
	avl_tree_t *slice_cache, const char const *dir, size_t dirs)
	{
	avl_tree_t *cache;
	rdsk_node_t *slice;
	void *cookie;
	int i, error;

	*slice_cache = NULL;
	cache = zutil_alloc(hdl, sizeof (avl_tree_t));
	avl_create(cache, slice_cache_compare, sizeof (rdsk_node_t),
	offsetof(rdsk_node_t, rn_node));

	for (i = 0; i < dirs; i++) {
	struct stat sbuf;

	if (stat(dir[i], &sbuf) != 0) {
	error = errno;
	if (error == ENOENT)
	continue;

	zutil_error_aux(hdl, strerror(error));
	(void) zutil_error_fmt(hdl, EZFS_BADPATH, dgettext(
	TEXT_DOMAIN, "cannot resolve path '%s'"), dir[i]);
	goto error;
	}

	/*
	* If dir[i] is a directory, we walk through it and add all
	* the entries to the cache. If it's not a directory, we just
	* add it to the cache.
	*/
	if (S_ISDIR(sbuf.st_mode)) {
	if ((error = zpool_find_import_scan_dir(hdl, lock,
	cache, dir[i], i)) != 0)
	goto error;
	} else {
	if ((error = zpool_find_import_scan_path(hdl, lock,
	cache, dir[i], i)) != 0)
	goto error;
	}
	}

	*slice_cache = cache;
	return (0);

	error:
	cookie = NULL;
	while ((slice = avl_destroy_nodes(cache, &cookie)) != NULL) {
	free(slice->rn_name);
	free(slice);
	}
	free(cache);

	return (error);
	}

	/*
	* Given a list of directories to search, find all pools stored on disk. This
	* includes partial pools which are not available to import. If no args are
	* given (argc is 0), then the default directory (/dev/dsk) is searched.
	* poolname or guid (but not both) are provided by the caller when trying
	* to import a specific pool.
	*/
	static nvlist_t *
	zpool_find_import_impl(libpc_handle_t hdl, importargs_t iarg,
	pthread_mutex_t lock, avl_tree_t cache)
	{
	nvlist_t *ret = NULL;
	pool_list_t pools = { 0 };
	pool_entry_t pe, penext;
	vdev_entry_t ve, venext;
	config_entry_t ce, cenext;
	name_entry_t ne, nenext;
	rdsk_node_t *slice;
	void *cookie;
	tpool_t *t;

	verify(iarg->poolname == NULL \|\| iarg->guid == 0);

	/*
	* Create a thread pool to parallelize the process of reading and
	* validating labels, a large number of threads can be used due to
	* minimal contention.
	*/
	t = tpool_create(1, 2 * sysconf(_SC_NPROCESSORS_ONLN), 0, NULL);
	for (slice = avl_first(cache); slice;
	(slice = avl_walk(cache, slice, AVL_AFTER)))
	(void) tpool_dispatch(t, zpool_open_func, slice);

	tpool_wait(t);
	tpool_destroy(t);

	/*
	* Process the cache, filtering out any entries which are not
	* for the specified pool then adding matching label configs.
	*/
	cookie = NULL;
	while ((slice = avl_destroy_nodes(cache, &cookie)) != NULL) {
	if (slice->rn_config != NULL) {
	nvlist_t *config = slice->rn_config;
	boolean_t matched = B_TRUE;
	boolean_t aux = B_FALSE;
	int fd;

	/*
	* Check if it's a spare or l2cache device. If it is,
	* we need to skip the name and guid check since they
	* don't exist on aux device label.
	*/
	if (iarg->poolname != NULL \|\| iarg->guid != 0) {
	uint64_t state;
	aux = nvlist_lookup_uint64(config,
	ZPOOL_CONFIG_POOL_STATE, &state) == 0 &&
	(state == POOL_STATE_SPARE \|\|
	state == POOL_STATE_L2CACHE);
	}

	if (iarg->poolname != NULL && !aux) {
	char *pname;

	matched = nvlist_lookup_string(config,
	ZPOOL_CONFIG_POOL_NAME, &pname) == 0 &&
	strcmp(iarg->poolname, pname) == 0;
	} else if (iarg->guid != 0 && !aux) {
	uint64_t this_guid;

	matched = nvlist_lookup_uint64(config,
	ZPOOL_CONFIG_POOL_GUID, &this_guid) == 0 &&
	iarg->guid == this_guid;
	}
	if (matched) {
	/*
	* Verify all remaining entries can be opened
	* exclusively. This will prune all underlying
	* multipath devices which otherwise could
	* result in the vdev appearing as UNAVAIL.
	*
	* Under zdb, this step isn't required and
	* would prevent a zdb -e of active pools with
	* no cachefile.
	*/
	fd = open(slice->rn_name,
	O_RDONLY \| O_EXCL \| O_CLOEXEC);
	if (fd >= 0 \|\| iarg->can_be_active) {
	if (fd >= 0)
	close(fd);
	add_config(hdl, &pools,
	slice->rn_name, slice->rn_order,
	slice->rn_num_labels, config);
	}
	}
	nvlist_free(config);
	}
	free(slice->rn_name);
	free(slice);
	}
	avl_destroy(cache);
	free(cache);

	ret = get_configs(hdl, &pools, iarg->can_be_active, iarg->policy);

	for (pe = pools.pools; pe != NULL; pe = penext) {
	penext = pe->pe_next;
	for (ve = pe->pe_vdevs; ve != NULL; ve = venext) {
	venext = ve->ve_next;
	for (ce = ve->ve_configs; ce != NULL; ce = cenext) {
	cenext = ce->ce_next;
	nvlist_free(ce->ce_config);
	free(ce);
	}
	free(ve);
	}
	free(pe);
	}

	for (ne = pools.names; ne != NULL; ne = nenext) {
	nenext = ne->ne_next;
	free(ne->ne_name);
	free(ne);
	}

	return (ret);
	}

	/*
	* Given a config, discover the paths for the devices which
	* exist in the config.
	*/
	static int
	discover_cached_paths(libpc_handle_t hdl, nvlist_t nv,
	avl_tree_t cache, pthread_mutex_t lock)
	{
	char *path = NULL;
	+ ssize_t dl;
	uint_t children;
	nvlist_t **child;

	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
	&child, &children) == 0) {
	for (int c = 0; c < children; c++) {
	discover_cached_paths(hdl, child[c], cache, lock);
	}
	}

	/*
	* Once we have the path, we need to add the directory to
	* our directory cache.
	*/
	if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0) {
	+ if ((dl = zfs_dirnamelen(path)) == -1)
	+ path = ".";
	+ else
	+ path[dl] = '\0';
	return (zpool_find_import_scan_dir(hdl, lock, cache,
	- dirname(path), 0));
	+ path, 0));
	}
	return (0);
	}

	/*
	* Given a cache file, return the contents as a list of importable pools.
	* poolname or guid (but not both) are provided by the caller when trying
	* to import a specific pool.
	*/
	static nvlist_t *
	zpool_find_import_cached(libpc_handle_t hdl, importargs_t iarg)
	{
	char *buf;
	int fd;
	struct stat64 statbuf;
	nvlist_t raw, src, *dst;
	nvlist_t *pools;
	nvpair_t *elem;
	char *name;
	uint64_t this_guid;
	boolean_t active;

	verify(iarg->poolname == NULL \|\| iarg->guid == 0);

	if ((fd = open(iarg->cachefile, O_RDONLY \| O_CLOEXEC)) < 0) {
	zutil_error_aux(hdl, "%s", strerror(errno));
	(void) zutil_error(hdl, EZFS_BADCACHE,
	dgettext(TEXT_DOMAIN, "failed to open cache file"));
	return (NULL);
	}

	if (fstat64(fd, &statbuf) != 0) {
	zutil_error_aux(hdl, "%s", strerror(errno));
	(void) close(fd);
	(void) zutil_error(hdl, EZFS_BADCACHE,
	dgettext(TEXT_DOMAIN, "failed to get size of cache file"));
	return (NULL);
	}

	if ((buf = zutil_alloc(hdl, statbuf.st_size)) == NULL) {
	(void) close(fd);
	return (NULL);
	}

	if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
	(void) close(fd);
	free(buf);
	(void) zutil_error(hdl, EZFS_BADCACHE,
	dgettext(TEXT_DOMAIN,
	"failed to read cache file contents"));
	return (NULL);
	}

	(void) close(fd);

	if (nvlist_unpack(buf, statbuf.st_size, &raw, 0) != 0) {
	free(buf);
	(void) zutil_error(hdl, EZFS_BADCACHE,
	dgettext(TEXT_DOMAIN,
	"invalid or corrupt cache file contents"));
	return (NULL);
	}

	free(buf);

	/*
	* Go through and get the current state of the pools and refresh their
	* state.
	*/
	if (nvlist_alloc(&pools, 0, 0) != 0) {
	(void) zutil_no_memory(hdl);
	nvlist_free(raw);
	return (NULL);
	}

	elem = NULL;
	while ((elem = nvlist_next_nvpair(raw, elem)) != NULL) {
	src = fnvpair_value_nvlist(elem);

	name = fnvlist_lookup_string(src, ZPOOL_CONFIG_POOL_NAME);
	if (iarg->poolname != NULL && strcmp(iarg->poolname, name) != 0)
	continue;

	this_guid = fnvlist_lookup_uint64(src, ZPOOL_CONFIG_POOL_GUID);
	if (iarg->guid != 0 && iarg->guid != this_guid)
	continue;

	if (zutil_pool_active(hdl, name, this_guid, &active) != 0) {
	nvlist_free(raw);
	nvlist_free(pools);
	return (NULL);
	}

	if (active)
	continue;

	if (iarg->scan) {
	uint64_t saved_guid = iarg->guid;
	const char *saved_poolname = iarg->poolname;
	pthread_mutex_t lock;

	/*
	* Create the device cache that will hold the
	* devices we will scan based on the cachefile.
	* This will get destroyed and freed by
	* zpool_find_import_impl.
	*/
	avl_tree_t *cache = zutil_alloc(hdl,
	sizeof (avl_tree_t));
	avl_create(cache, slice_cache_compare,
	sizeof (rdsk_node_t),
	offsetof(rdsk_node_t, rn_node));
	nvlist_t *nvroot = fnvlist_lookup_nvlist(src,
	ZPOOL_CONFIG_VDEV_TREE);

	/*
	* We only want to find the pool with this_guid.
	* We will reset these values back later.
	*/
	iarg->guid = this_guid;
	iarg->poolname = NULL;

	/*
	* We need to build up a cache of devices that exists
	* in the paths pointed to by the cachefile. This allows
	* us to preserve the device namespace that was
	* originally specified by the user but also lets us
	* scan devices in those directories in case they had
	* been renamed.
	*/
	pthread_mutex_init(&lock, NULL);
	discover_cached_paths(hdl, nvroot, cache, &lock);
	nvlist_t *nv = zpool_find_import_impl(hdl, iarg,
	&lock, cache);
	pthread_mutex_destroy(&lock);

	/*
	* zpool_find_import_impl will return back
	* a list of pools that it found based on the
	* device cache. There should only be one pool
	* since we're looking for a specific guid.
	* We will use that pool to build up the final
	* pool nvlist which is returned back to the
	* caller.
	*/
	nvpair_t *pair = nvlist_next_nvpair(nv, NULL);
	fnvlist_add_nvlist(pools, nvpair_name(pair),
	fnvpair_value_nvlist(pair));

	VERIFY3P(nvlist_next_nvpair(nv, pair), ==, NULL);

	iarg->guid = saved_guid;
	iarg->poolname = saved_poolname;
	continue;
	}

	if (nvlist_add_string(src, ZPOOL_CONFIG_CACHEFILE,
	iarg->cachefile) != 0) {
	(void) zutil_no_memory(hdl);
	nvlist_free(raw);
	nvlist_free(pools);
	return (NULL);
	}

	if ((dst = zutil_refresh_config(hdl, src)) == NULL) {
	nvlist_free(raw);
	nvlist_free(pools);
	return (NULL);
	}

	if (nvlist_add_nvlist(pools, nvpair_name(elem), dst) != 0) {
	(void) zutil_no_memory(hdl);
	nvlist_free(dst);
	nvlist_free(raw);
	nvlist_free(pools);
	return (NULL);
	}
	nvlist_free(dst);
	}
	nvlist_free(raw);
	return (pools);
	}

	static nvlist_t *
	zpool_find_import(libpc_handle_t hdl, importargs_t iarg)
	{
	pthread_mutex_t lock;
	avl_tree_t *cache;
	nvlist_t *pools = NULL;

	verify(iarg->poolname == NULL \|\| iarg->guid == 0);
	pthread_mutex_init(&lock, NULL);

	/*
	* Locate pool member vdevs by blkid or by directory scanning.
	* On success a newly allocated AVL tree which is populated with an
	* entry for each discovered vdev will be returned in the cache.
	* It's the caller's responsibility to consume and destroy this tree.
	*/
	if (iarg->scan \|\| iarg->paths != 0) {
	size_t dirs = iarg->paths;
	const char * const dir = (const char const *)iarg->path;

	if (dirs == 0)
	dir = zpool_default_search_paths(&dirs);

	if (zpool_find_import_scan(hdl, &lock, &cache,
	dir, dirs) != 0) {
	pthread_mutex_destroy(&lock);
	return (NULL);
	}
	} else {
	if (zpool_find_import_blkid(hdl, &lock, &cache) != 0) {
	pthread_mutex_destroy(&lock);
	return (NULL);
	}
	}

	pools = zpool_find_import_impl(hdl, iarg, &lock, cache);
	pthread_mutex_destroy(&lock);
	return (pools);
	}


	nvlist_t *
	zpool_search_import(void hdl, importargs_t import,
	const pool_config_ops_t *pco)
	{
	libpc_handle_t handle = { 0 };
	nvlist_t *pools = NULL;

	handle.lpc_lib_handle = hdl;
	handle.lpc_ops = pco;
	handle.lpc_printerr = B_TRUE;

	verify(import->poolname == NULL \|\| import->guid == 0);

	if (import->cachefile != NULL)
	pools = zpool_find_import_cached(&handle, import);
	else
	pools = zpool_find_import(&handle, import);

	if ((pools == NULL \|\| nvlist_empty(pools)) &&
	handle.lpc_open_access_error && geteuid() != 0) {
	(void) zutil_error(&handle, EZFS_EACESS, dgettext(TEXT_DOMAIN,
	"no pools found"));
	}

	return (pools);
	}

	static boolean_t
	pool_match(nvlist_t cfg, char tgt)
	{
	uint64_t v, guid = strtoull(tgt, NULL, 0);
	char *s;

	if (guid != 0) {
	if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
	return (v == guid);
	} else {
	if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
	return (strcmp(s, tgt) == 0);
	}
	return (B_FALSE);
	}

	int
	zpool_find_config(void hdl, const char target, nvlist_t **configp,
	importargs_t args, const pool_config_ops_t pco)
	{
	nvlist_t *pools;
	nvlist_t *match = NULL;
	nvlist_t *config = NULL;
	char *sepp = NULL;
	int count = 0;
	char *targetdup = strdup(target);

	*configp = NULL;

	if ((sepp = strpbrk(targetdup, "/@")) != NULL)
	*sepp = '\0';

	pools = zpool_search_import(hdl, args, pco);

	if (pools != NULL) {
	nvpair_t *elem = NULL;
	while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
	VERIFY0(nvpair_value_nvlist(elem, &config));
	if (pool_match(config, targetdup)) {
	count++;
	if (match != NULL) {
	/* multiple matches found */
	continue;
	} else {
	match = fnvlist_dup(config);
	}
	}
	}
	fnvlist_free(pools);
	}

	if (count == 0) {
	free(targetdup);
	return (ENOENT);
	}

	if (count > 1) {
	free(targetdup);
	fnvlist_free(match);
	return (EINVAL);
	}

	*configp = match;
	free(targetdup);

	return (0);
	}
	diff --git a/sys/contrib/openzfs/man/Makefile.am b/sys/contrib/openzfs/man/Makefile.am
	index 841cb9c4e6a0..8ab1b757242c 100644
	--- a/sys/contrib/openzfs/man/Makefile.am
	+++ b/sys/contrib/openzfs/man/Makefile.am
	@@ -1 +1,117 @@
	-SUBDIRS = man1 man5 man8
	+include $(top_srcdir)/config/Substfiles.am
	+
	+EXTRA_DIST += \
	+ man1/cstyle.1
	+
	+dist_man_MANS = \
	+ man1/zhack.1 \
	+ man1/ztest.1 \
	+ man1/raidz_test.1 \
	+ man1/zvol_wait.1 \
	+ man1/arcstat.1 \
	+ \
	+ man5/vdev_id.conf.5 \
	+ \
	+ man4/spl.4 \
	+ man4/zfs.4 \
	+ \
	+ man7/zpool-features.7 \
	+ man7/zfsconcepts.7 \
	+ man7/zfsprops.7 \
	+ man7/zpoolconcepts.7 \
	+ man7/zpoolprops.7 \
	+ \
	+ man8/fsck.zfs.8 \
	+ man8/mount.zfs.8 \
	+ man8/vdev_id.8 \
	+ man8/zdb.8 \
	+ man8/zfs.8 \
	+ man8/zfs-allow.8 \
	+ man8/zfs-bookmark.8 \
	+ man8/zfs-change-key.8 \
	+ man8/zfs-clone.8 \
	+ man8/zfs-create.8 \
	+ man8/zfs-destroy.8 \
	+ man8/zfs-diff.8 \
	+ man8/zfs-get.8 \
	+ man8/zfs-groupspace.8 \
	+ man8/zfs-hold.8 \
	+ man8/zfs-inherit.8 \
	+ man8/zfs-jail.8 \
	+ man8/zfs-list.8 \
	+ man8/zfs-load-key.8 \
	+ man8/zfs-mount.8 \
	+ man8/zfs-program.8 \
	+ man8/zfs-project.8 \
	+ man8/zfs-projectspace.8 \
	+ man8/zfs-promote.8 \
	+ man8/zfs-receive.8 \
	+ man8/zfs-recv.8 \
	+ man8/zfs-redact.8 \
	+ man8/zfs-release.8 \
	+ man8/zfs-rename.8 \
	+ man8/zfs-rollback.8 \
	+ man8/zfs-send.8 \
	+ man8/zfs-set.8 \
	+ man8/zfs-share.8 \
	+ man8/zfs-snapshot.8 \
	+ man8/zfs-unallow.8 \
	+ man8/zfs-unjail.8 \
	+ man8/zfs-unload-key.8 \
	+ man8/zfs-unmount.8 \
	+ man8/zfs-upgrade.8 \
	+ man8/zfs-userspace.8 \
	+ man8/zfs-wait.8 \
	+ man8/zfs_ids_to_path.8 \
	+ man8/zgenhostid.8 \
	+ man8/zinject.8 \
	+ man8/zpool.8 \
	+ man8/zpool-add.8 \
	+ man8/zpool-attach.8 \
	+ man8/zpool-checkpoint.8 \
	+ man8/zpool-clear.8 \
	+ man8/zpool-create.8 \
	+ man8/zpool-destroy.8 \
	+ man8/zpool-detach.8 \
	+ man8/zpool-events.8 \
	+ man8/zpool-export.8 \
	+ man8/zpool-get.8 \
	+ man8/zpool-history.8 \
	+ man8/zpool-import.8 \
	+ man8/zpool-initialize.8 \
	+ man8/zpool-iostat.8 \
	+ man8/zpool-labelclear.8 \
	+ man8/zpool-list.8 \
	+ man8/zpool-offline.8 \
	+ man8/zpool-online.8 \
	+ man8/zpool-reguid.8 \
	+ man8/zpool-remove.8 \
	+ man8/zpool-reopen.8 \
	+ man8/zpool-replace.8 \
	+ man8/zpool-resilver.8 \
	+ man8/zpool-scrub.8 \
	+ man8/zpool-set.8 \
	+ man8/zpool-split.8 \
	+ man8/zpool-status.8 \
	+ man8/zpool-sync.8 \
	+ man8/zpool-trim.8 \
	+ man8/zpool-upgrade.8 \
	+ man8/zpool-wait.8 \
	+ man8/zstream.8 \
	+ man8/zstreamdump.8 \
	+ man8/zpool_influxdb.8
	+
	+nodist_man_MANS = \
	+ man8/zed.8 \
	+ man8/zfs-mount-generator.8
	+
	+SUBSTFILES += $(nodist_man_MANS)
	+
	+
	+if BUILD_LINUX
	+# The manual pager in most Linux distros defaults to "BSD" when .Os is blank,
	+# but leaving it blank makes things a lot easier on
	+# FreeBSD when OpenZFS is vendored in the base system.
	+install-data-hook:
	+ cd $(DESTDIR)$(mandir) && $(SED) ${ac_inplace} -e 's/^\.Os$$/.Os OpenZFS/' $(dist_man_MANS) $(nodist_man_MANS)
	+endif
	diff --git a/sys/contrib/openzfs/man/man1/Makefile.am b/sys/contrib/openzfs/man/man1/Makefile.am
	deleted file mode 100644
	index 8d7457a3e258..000000000000
	--- a/sys/contrib/openzfs/man/man1/Makefile.am
	+++ /dev/null
	@@ -1,12 +0,0 @@
	-dist_man_MANS = zhack.1 ztest.1 raidz_test.1 zvol_wait.1 arcstat.1
	-EXTRA_DIST = cstyle.1
	-
	-if BUILD_LINUX
	-# The man pager in most Linux distros defaults to BSD instead of Linux
	-# when .Os is blank, but leaving it blank makes things a lot easier on
	-# FreeBSD when OpenZFS is vendored in the base system.
	-install-data-hook:
	- cd $(DESTDIR)$(mandir)/man1; \
	- $(SED) ${ac_inplace} -e 's/^\.Os$$/.Os Linux/' \
	- $(dist_man_MANS)
	-endif
	diff --git a/sys/contrib/openzfs/man/man1/arcstat.1 b/sys/contrib/openzfs/man/man1/arcstat.1
	index a0240e40e4b8..a69cd8937bdf 100644
	--- a/sys/contrib/openzfs/man/man1/arcstat.1
	+++ b/sys/contrib/openzfs/man/man1/arcstat.1
	@@ -1,182 +1,184 @@
	.\"
	.\" This file and its contents are supplied under the terms of the
	.\" Common Development and Distribution License ("CDDL"), version 1.0.
	.\" You may only use this file in accordance with the terms of version
	.\" 1.0 of the CDDL.
	.\"
	.\" A full copy of the text of the CDDL should have accompanied this
	.\" source. A copy of the CDDL is also available via the Internet at
	.\" http://www.illumos.org/license/CDDL.
	.\"
	.\" Copyright 2014 Adam Stevko. All rights reserved.
	.\" Copyright (c) 2015 by Delphix. All rights reserved.
	.\" Copyright (c) 2020 by AJ Jordan. All rights reserved.
	.\"
	.Dd May 26, 2021
	.Dt ARCSTAT 1
	.Os
	.
	.Sh NAME
	.Nm arcstat
	.Nd report ZFS ARC and L2ARC statistics
	.Sh SYNOPSIS
	.Nm
	.Op Fl havxp
	-.Op Fl f Ar field Ns Op , Ns Ar field Ns ...
	+.Op Fl f Ar field Ns Op , Ns Ar field Ns …
	.Op Fl o Ar file
	.Op Fl s Ar string
	.Op Ar interval
	.Op Ar count
	.
	.Sh DESCRIPTION
	.Nm
	prints various ZFS ARC and L2ARC statistics in vmstat-like fashion:
	-.Bl -tag -width "l2asize"
	+.Bl -tag -compact -offset Ds -width "l2asize"
	.It Sy c
	ARC target size
	.It Sy dh%
	Demand data hit percentage
	.It Sy dm%
	Demand data miss percentage
	.It Sy mfu
	MFU list hits per second
	.It Sy mh%
	Metadata hit percentage
	.It Sy mm%
	Metadata miss percentage
	.It Sy mru
	MRU list hits per second
	.It Sy ph%
	Prefetch hits percentage
	.It Sy pm%
	Prefetch miss percentage
	.It Sy dhit
	Demand data hits per second
	.It Sy dmis
	Demand data misses per second
	.It Sy hit%
	ARC hit percentage
	.It Sy hits
	ARC reads per second
	.It Sy mfug
	MFU ghost list hits per second
	.It Sy mhit
	Metadata hits per second
	.It Sy miss
	ARC misses per second
	.It Sy mmis
	Metadata misses per second
	.It Sy mrug
	MRU ghost list hits per second
	.It Sy phit
	Prefetch hits per second
	.It Sy pmis
	Prefetch misses per second
	.It Sy read
	Total ARC accesses per second
	.It Sy time
	Current time
	.It Sy size
	ARC size
	.It Sy arcsz
	Alias for
	.Sy size
	.It Sy dread
	Demand data accesses per second
	.It Sy eskip
	evict_skip per second
	.It Sy miss%
	ARC miss percentage
	.It Sy mread
	Metadata accesses per second
	.It Sy pread
	Prefetch accesses per second
	.It Sy l2hit%
	L2ARC access hit percentage
	.It Sy l2hits
	L2ARC hits per second
	.It Sy l2miss
	L2ARC misses per second
	.It Sy l2read
	Total L2ARC accesses per second
	.It Sy l2pref
	L2ARC prefetch allocated size per second
	.It Sy l2pref%
	L2ARC prefetch allocated size percentage
	.It Sy l2mfu
	L2ARC MFU allocated size per second
	.It Sy l2mfu%
	L2ARC MFU allocated size percentage
	.It Sy l2mru
	L2ARC MRU allocated size per second
	.It Sy l2mru%
	L2ARC MRU allocated size percentage
	.It Sy l2data
	L2ARC data (buf content) allocated size per second
	.It Sy l2data%
	L2ARC data (buf content) allocated size percentage
	.It Sy l2meta
	L2ARC metadata (buf content) allocated size per second
	.It Sy l2meta%
	L2ARC metadata (buf content) allocated size percentage
	.It Sy l2size
	Size of the L2ARC
	.It Sy mtxmis
	mutex_miss per second
	.It Sy l2bytes
	Bytes read per second from the L2ARC
	.It Sy l2miss%
	L2ARC access miss percentage
	.It Sy l2asize
	Actual (compressed) size of the L2ARC
	.It Sy grow
	ARC grow disabled
	.It Sy need
	ARC reclaim needed
	.It Sy free
	The ARC's idea of how much free memory there is, which includes evictable memory in the page cache.
	Since the ARC tries to keep
	.Sy avail
	above zero,
	.Sy avail
	is usually more instructive to observe than
	.Sy free .
	.It Sy avail
	The ARC's idea of how much free memory is available to it, which is a bit less than
	.Sy free .
	May temporarily be negative, in which case the ARC will reduce the target size
	.Sy c .
	.El
	.
	.Sh OPTIONS
	.Bl -tag -width "-v"
	.It Fl a
	Print all possible stats.
	.It Fl f
	Display only specific fields.
	See
	-.Sy DESCRIPTION
	+.Sx DESCRIPTION
	for supported statistics.
	.It Fl h
	Display help message.
	.It Fl o
	Report statistics to a file instead of the standard output.
	.It Fl p
	Disable auto-scaling of numerical fields (for raw, machine-parsable values).
	.It Fl s
	Display data with a specified separator (default: 2 spaces).
	.It Fl x
	-Print extended stats (same as
	-.Fl f Ar time,mfu,mru,mfug,mrug,eskip,mtxmis,dread,pread,read Ns No ).
	+Print extended stats
	+.Pq same as Fl f Sy time , Ns Sy mfu , Ns Sy mru , Ns Sy mfug , Ns Sy mrug , Ns Sy eskip , Ns Sy mtxmis , Ns Sy dread , Ns Sy pread , Ns Sy read .
	.It Fl v
	Show field headers and definitions
	.El
	.
	.Sh OPERANDS
	The following operands are supported:
	-.Bl -tag -width "interval"
	+.Bl -tag -compact -offset Ds -width "interval"
	.It Ar interval
	Specify the sampling interval in seconds.
	.It Ar count
	-Display only \fIcount\fR reports.
	+Display only
	+.Ar count
	+reports.
	.El
	diff --git a/sys/contrib/openzfs/man/man1/cstyle.1 b/sys/contrib/openzfs/man/man1/cstyle.1
	index 16f47ba35c1f..f5f9ec78f827 100644
	--- a/sys/contrib/openzfs/man/man1/cstyle.1
	+++ b/sys/contrib/openzfs/man/man1/cstyle.1
	@@ -1,161 +1,160 @@
	.\" Copyright 2009 Sun Microsystems, Inc. All rights reserved.
	.\" Use is subject to license terms.
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.Dd May 26, 2021
	.Dt CSTYLE 1
	.Os
	.
	.Sh NAME
	.Nm cstyle
	.Nd check for some common stylistic errors in C source files
	.Sh SYNOPSIS
	.Nm
	.Op Fl chpvCP
	.Op Fl o Ar construct Ns Op , Ns Ar construct Ns …
	-.Op Ar file…
	+.Oo Ar file Oc Ns …
	.Sh DESCRIPTION
	.Nm
	inspects C source files (.c and .h) for common stylistic errors.
	It attempts to check for the cstyle documented in
	.Lk http://www.cis.upenn.edu/~lee/06cse480/data/cstyle.ms.pdf .
	Note that there is much in that document that
	.Em cannot
	be checked for; just because your code is
	.Nm Ns -clean
	does not mean that you've followed Sun's C style.
	.Em Caveat emptor .
	.
	.Sh OPTIONS
	The following options are supported:
	.Bl -tag -width "-c"
	.It Fl c
	Check continuation line indentation inside of functions.
	Sun's C style
	states that all statements must be indented to an appropriate tab stop,
	and any continuation lines after them must be indented
	.Em exactly
	four spaces from the start line.
	This option enables a series of checks designed to find
	continuation line problems within functions only.
	The checks have some limitations; see
	.Sy CONTINUATION CHECKING ,
	below.
	.It Fl h
	Performs heuristic checks that are sometimes wrong.
	Not generally used.
	.It Fl p
	Performs some of the more picky checks.
	Includes ANSI
	.Sy #else
	and
	.Sy #endif
	rules, and tries to detect spaces after casts.
	Used as part of the putback checks.
	.It Fl v
	Verbose output; includes the text of the line of error, and, for
	.Fl c ,
	the first statement in the current continuation block.
	.It Fl C
	Ignore errors in header comments (i.e. block comments starting in the
	first column).
	Not generally used.
	.It Fl P
	Check for use of non-POSIX types.
	Historically, types like
	.Sy u_int
	and
	.Sy u_long
	were used, but they are now deprecated in favor of the POSIX
	types
	.Sy uint_t ,
	.Sy ulong_t ,
	etc.
	This detects any use of the deprecated types.
	Used as part of the putback checks.
	.It Fl o Ar construct Ns Op , Ns Ar construct Ns …
	Available constructs include:
	.Bl -tag -compact -width "doxygen"
	.It Sy doxygen
	Allow doxygen-style block comments
	.Pq Sy /** No and Sy /*!\& .
	.It Sy splint
	Allow splint-style lint comments
	-.Pq Sy /@...@/ .
	+.Pq Sy /@ Ns ... Ns Sy @/ .
	.El
	.El
	.
	.Sh CONTINUATION CHECKING
	The continuation checker is a reasonably simple state machine that knows
	something about how C is laid out, and can match parenthesis, etc. over
	multiple lines.
	It does have some limitations:
	.Bl -enum
	.It
	Preprocessor macros which cause unmatched parenthesis will confuse the
	checker for that line.
	To fix this, you'll need to make sure that each branch of the
	.Sy #if
	statement has balanced parenthesis.
	.It
	Some
	.Xr cpp 1
	-macros do not require \fB;\fPs after them.
	+macros do not require
	+.Sy ;\& Ns s after them.
	Any such macros
	.Em must
	be ALL_CAPS; any lower case letters will cause bad output.
	.Pp
	-The bad output will generally be corrected after the next \fB;\fP,
	-.Sy { ,
	-or
	-.Sy } .
	+The bad output will generally be corrected after the next
	+.Sy ;\& , { , No or Sy } .
	.El
	Some continuation error messages deserve some additional explanation:
	.Bl -tag -width Ds
	.It Sy multiple statements continued over multiple lines
	A multi-line statement which is not broken at statement boundaries.
	For example:
	-.Bd -literal
	+.Bd -literal -compact -offset Ds
	if (this_is_a_long_variable == another_variable) a =
	b + c;
	.Ed
	.Pp
	Will trigger this error.
	Instead, do:
	-.Bd -literal
	+.Bd -literal -compact -offset Ds
	if (this_is_a_long_variable == another_variable)
	a = b + c;
	.Ed
	.It Sy empty if/for/while body not on its own line
	For visibility, empty bodies for if, for, and while statements should be
	on their own line.
	For example:
	-.Bd -literal
	+.Bd -literal -compact -offset Ds
	while (do_something(&x) == 0);
	.Ed
	.Pp
	Will trigger this error.
	Instead, do:
	-.Bd -literal
	+.Bd -literal -compact -offset Ds
	while (do_something(&x) == 0)
	;
	.Ed
	.El
	diff --git a/sys/contrib/openzfs/man/man1/raidz_test.1 b/sys/contrib/openzfs/man/man1/raidz_test.1
	index 1c61c7a8772b..4283a4b527f3 100644
	--- a/sys/contrib/openzfs/man/man1/raidz_test.1
	+++ b/sys/contrib/openzfs/man/man1/raidz_test.1
	@@ -1,101 +1,101 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2016 Gvozden Nešković. All rights reserved.
	.\"
	.Dd May 26, 2021
	.Dt RAIDZ_TEST 1
	.Os
	.
	.Sh NAME
	.Nm raidz_test
	.Nd raidz implementation verification and benchmarking tool
	.Sh SYNOPSIS
	.Nm
	.Op Fl StBevTD
	.Op Fl a Ar ashift
	.Op Fl o Ar zio_off_shift
	.Op Fl d Ar raidz_data_disks
	.Op Fl s Ar zio_size_shift
	.Op Fl r Ar reflow_offset
	.
	.Sh DESCRIPTION
	The purpose of this tool is to run all supported raidz implementation and verify
	the results of all methods.
	It also contains a parameter sweep option where all
	parameters affecting a RAIDZ block are verified (like ashift size, data offset,
	data size, etc.).
	The tool also supports a benchmarking mode using the
	.Fl B
	option.
	.
	.Sh OPTION
	.Bl -tag -width "-B(enchmark)"
	.It Fl h
	Print a help summary.
	-.It Fl a Ar ashift No (default: Sy 9 )
	+.It Fl a Ar ashift Pq default: Sy 9
	Ashift value.
	-.It Fl o Ar zio_off_shift No (default: Sy 0 )
	+.It Fl o Ar zio_off_shift Pq default: Sy 0
	ZIO offset for each raidz block.
	The offset's value is
	-.Sy 1 << zio_off_shift .
	-.It Fl d Ar raidz_data_disks No (default: Sy 8 )
	+.Em 2^zio_off_shift .
	+.It Fl d Ar raidz_data_disks Pq default: Sy 8
	Number of raidz data disks to use.
	Additional disks will be used for parity.
	-.It Fl s Ar zio_size_shift No (default: Sy 19 )
	+.It Fl s Ar zio_size_shift Pq default: Sy 19
	Size of data for raidz block.
	The real size is
	-.Sy 1 << zio_size_shift .
	-.It Fl r Ar reflow_offset No (default: Sy uint max )
	+.Em 2^zio_size_shift .
	+.It Fl r Ar reflow_offset Pq default: Sy uint max
	Set raidz expansion offset.
	The expanded raidz map allocation function will
	produce different map configurations depending on this value.
	-.It Fl S Ns No (weep)
	+.It Fl S Ns Pq weep
	Sweep parameter space while verifying the raidz implementations.
	This option
	will exhaust all most of valid values for the
	.Fl aods
	options.
	Runtime using this option will be long.
	-.It Fl t Ns No (imeout)
	+.It Fl t Ns Pq imeout
	Wall time for sweep test in seconds.
	The actual runtime could be longer.
	-.It Fl B Ns No (enchmark)
	+.It Fl B Ns Pq enchmark
	All implementations are benchmarked using increasing per disk data size.
	Results are given as throughput per disk, measured in MiB/s.
	-.It Fl e Ns No (xpansion)
	+.It Fl e Ns Pq xpansion
	Use expanded raidz map allocation function.
	-.It Fl v Ns No (erbose)
	+.It Fl v Ns Pq erbose
	Increase verbosity.
	-.It Fl T Ns No (est the test)
	+.It Fl T Ns Pq est the test
	Debugging option: fail all tests.
	This is to check if tests would properly verify bit-exactness.
	-.It Fl D Ns No (ebug)
	+.It Fl D Ns Pq ebug
	Debugging option: attach
	.Xr gdb 1
	when
	.Sy SIGSEGV
	or
	.Sy SIGABRT
	are received.
	.El
	.
	.Sh "SEE ALSO"
	.Xr ztest 1
	diff --git a/sys/contrib/openzfs/man/man1/zhack.1 b/sys/contrib/openzfs/man/man1/zhack.1
	index e2fc189b4d0d..83046ee8f515 100644
	--- a/sys/contrib/openzfs/man/man1/zhack.1
	+++ b/sys/contrib/openzfs/man/man1/zhack.1
	@@ -1,142 +1,140 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright 2013 Darik Horn <dajhorn@vanadac.com>. All rights reserved.
	.\"
	.\" lint-ok: WARNING: sections out of conventional order: Sh SYNOPSIS
	.\"
	.Dd May 26, 2021
	.Dt ZHACK 1
	.Os
	.
	.Sh NAME
	.Nm zhack
	.Nd libzpool debugging tool
	.Sh DESCRIPTION
	This utility pokes configuration changes directly into a ZFS pool,
	which is dangerous and can cause data corruption.
	.Sh SYNOPSIS
	.Bl -tag -width Ds
	.It Xo
	.Nm zhack
	.Cm feature stat
	.Ar pool
	.Xc
	List feature flags.
	.
	.It Xo
	.Nm zhack
	.Cm feature enable
	.Op Fl d Ar description
	.Op Fl r
	.Ar pool
	.Ar guid
	.Xc
	Add a new feature to
	.Ar pool
	that is uniquely identified by
	.Ar guid ,
	which is specified in the same form as a
	.Xr zfs 8
	user property.
	.Pp
	The
	.Ar description
	is a short human readable explanation of the new feature.
	.Pp
	The
	.Fl r
	flag indicates that
	.Ar pool
	can be safely opened in read-only mode by a system that does not understand the
	.Ar guid
	feature.
	.
	.It Xo
	.Nm zhack
	.Cm feature ref
	.Op Fl d Ns \| Ns Fl m
	.Ar pool
	.Ar guid
	.Xc
	Increment the reference count of the
	.Ar guid
	feature in
	.Ar pool .
	.Pp
	The
	.Fl d
	flag decrements the reference count of the
	.Ar guid
	feature in
	.Ar pool
	instead.
	.Pp
	The
	.Fl m
	flag indicates that the
	.Ar guid
	feature is now required to read the pool MOS.
	.El
	.
	.Sh GLOBAL OPTIONS
	The following can be passed to all
	.Nm
	invocations before any subcommand:
	.Bl -tag -width "-d dir"
	.It Fl c Ar cachefile
	Read
	.Ar pool
	configuration from the
	.Ar cachefile ,
	which is
	.Pa /etc/zfs/zpool.cache
	by default.
	.It Fl d Ar dir
	Search for
	.Ar pool
	members in
	.Ar dir .
	Can be specified more than once.
	.El
	.
	.Sh EXAMPLES
	.Bd -literal
	-# zhack feature stat tank
	+.No # Nm zhack Cm feature stat Ar tank
	for_read_obj:
	org.illumos:lz4_compress = 0
	for_write_obj:
	com.delphix:async_destroy = 0
	com.delphix:empty_bpobj = 0
	descriptions_obj:
	com.delphix:async_destroy = Destroy filesystems asynchronously.
	com.delphix:empty_bpobj = Snapshots use less space.
	org.illumos:lz4_compress = LZ4 compression algorithm support.

	-# zhack feature enable -d 'Predict future disk failures.' \\
	- tank com.example:clairvoyance
	-
	-# zhack feature ref tank com.example:clairvoyance
	+.No # Nm zhack Cm feature enable Fl d No 'Predict future disk failures.' Ar tank com.example:clairvoyance
	+.No # Nm zhack Cm feature ref Ar tank com.example:clairvoyance
	.Ed
	.
	.Sh SEE ALSO
	.Xr ztest 1 ,
	-.Xr zpool-features 5 ,
	+.Xr zpool-features 7 ,
	.Xr zfs 8
	diff --git a/sys/contrib/openzfs/man/man1/ztest.1 b/sys/contrib/openzfs/man/man1/ztest.1
	index 459486c286bf..fd1374a2f106 100644
	--- a/sys/contrib/openzfs/man/man1/ztest.1
	+++ b/sys/contrib/openzfs/man/man1/ztest.1
	@@ -1,233 +1,233 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Oracle and/or its affiliates. All rights reserved.
	.\" Copyright (c) 2009 Michael Gebetsroither <michael.geb@gmx.at>. All rights
	.\" reserved.
	.\" Copyright (c) 2017, Intel Corporation.
	.\"
	.Dd May 26, 2021
	.Dt ZTEST 1
	.Os
	.
	.Sh NAME
	.Nm ztest
	.Nd was written by the ZFS Developers as a ZFS unit test
	.Sh SYNOPSIS
	.Nm
	.Op Fl VEG
	.Op Fl v Ar vdevs
	.Op Fl s Ar size_of_each_vdev
	.Op Fl a Ar alignment_shift
	.Op Fl m Ar mirror_copies
	.Op Fl r Ar raidz_disks/draid_disks
	.Op Fl R Ar raid_parity
	.Op Fl K Ar raid_kind
	.Op Fl D Ar draid_data
	.Op Fl S Ar draid_spares
	.Op Fl C Ar vdev_class_state
	.Op Fl d Ar datasets
	.Op Fl t Ar threads
	.Op Fl g Ar gang_block_threshold
	.Op Fl i Ar initialize_pool_i_times
	.Op Fl k Ar kill_percentage
	.Op Fl p Ar pool_name
	.Op Fl T Ar time
	.Op Fl z Ar zil_failure_rate
	.
	.Sh DESCRIPTION
	.Nm
	was written by the ZFS Developers as a ZFS unit test.
	The tool was developed in tandem with the ZFS functionality and was
	executed nightly as one of the many regression test against the daily build.
	As features were added to ZFS, unit tests were also added to
	.Nm .
	In addition, a separate test development team wrote and
	executed more functional and stress tests.
	.
	.Pp
	By default
	.Nm
	runs for ten minutes and uses block files
	(stored in
	.Pa /tmp )
	to create pools rather than using physical disks.
	Block files afford
	.Nm
	its flexibility to play around with
	zpool components without requiring large hardware configurations.
	However, storing the block files in
	.Pa /tmp
	may not work for you if you
	have a small tmp directory.
	.
	.Pp
	By default is non-verbose.
	This is why entering the command above will result in
	.Nm
	quietly executing for 5 minutes.
	The
	.Fl V
	option can be used to increase the verbosity of the tool.
	Adding multiple
	.Fl V
	options is allowed and the more you add the more chatty
	.Nm
	becomes.
	.
	.Pp
	After the
	.Nm
	run completes, you should notice many
	.Pa ztest.*
	files lying around.
	Once the run completes you can safely remove these files.
	Note that you shouldn't remove these files during a run.
	You can re-use these files in your next
	.Nm
	run by using the
	.Fl E
	option.
	.
	.Sh OPTIONS
	.Bl -tag -width "-v v"
	.It Fl h , \&? , -help
	Print a help summary.
	.It Fl v , -vdevs Ns = (default: Sy 5 )
	Number of vdevs.
	.It Fl s , -vdev-size Ns = (default: Sy 64M )
	Size of each vdev.
	.It Fl a , -alignment-shift Ns = (default: Sy 9 ) No (use Sy 0 No for random)
	Alignment shift used in test.
	.It Fl m , -mirror-copies Ns = (default: Sy 2 )
	Number of mirror copies.
	.It Fl r , -raid-disks Ns = (default: Sy 4 No for raidz/ Ns Sy 16 No for draid)
	Number of raidz/draid disks.
	.It Fl R , -raid-parity Ns = (default: Sy 1 )
	Raid parity (raidz & draid).
	.It Fl K , -raid-kind Ns = Ns Sy raidz Ns \| Ns Sy draid Ns \| Ns Sy random No (default: Sy random )
	The kind of RAID config to use.
	With
	.Sy random
	the kind alternates between raidz and draid.
	.It Fl D , -draid-data Ns = (default: Sy 4 )
	Number of data disks in a dRAID redundancy group.
	.It Fl S , -draid-spares Ns = (default: Sy 1 )
	Number of dRAID distributed spare disks.
	.It Fl d , -datasets Ns = (default: Sy 7 )
	Number of datasets.
	.It Fl t , -threads Ns = (default: Sy 23 )
	Number of threads.
	.It Fl g , -gang-block-threshold Ns = (default: Sy 32K )
	Gang block threshold.
	.It Fl i , -init-count Ns = (default: Sy 1 )
	Number of pool initializations.
	.It Fl k , -kill-percentage Ns = (default: Sy 70% )
	Kill percentage.
	.It Fl p , -pool-name Ns = (default: Sy ztest )
	Pool name.
	.It Fl f , -vdev-file-directory Ns = (default: Pa /tmp )
	File directory for vdev files.
	.It Fl M , -multi-host
	Multi-host; simulate pool imported on remote host.
	.It Fl E , -use-existing-pool
	Use existing pool (use existing pool instead of creating new one).
	.It Fl T , -run-time Ns = (default: Sy 300 Ns s)
	Total test run time.
	.It Fl P , -pass-time Ns = (default: Sy 60 Ns s)
	Time per pass.
	.It Fl F , -freeze-loops Ns = (default: Sy 50 )
	Max loops in
	.Fn spa_freeze .
	.It Fl B , -alt-ztest Ns =
	Alternate ztest path.
	.It Fl C , -vdev-class-state Ns = Ns Sy on Ns \| Ns Sy off Ns \| Ns Sy random No (default: Sy random )
	The vdev allocation class state.
	.It Fl o , -option Ns = Ns Ar variable Ns = Ns Ar value
	Set global
	.Ar variable
	to an unsigned 32-bit integer
	.Ar value
	(little-endian only).
	.It Fl G , -dump-debug
	Dump zfs_dbgmsg buffer before exiting due to an error.
	.It Fl V , -verbose
	Verbose (use multiple times for ever more verbosity).
	.El
	.
	.Sh EXAMPLES
	To override
	.Pa /tmp
	as your location for block files, you can use the
	.Fl f
	option:
	.Dl # ztest -f /
	.Pp
	To get an idea of what
	.Nm
	is actually testing try this:
	.Dl # ztest -f / -VVV
	.Pp
	Maybe you'd like to run
	.Nm ztest
	for longer? To do so simply use the
	.Fl T
	option and specify the runlength in seconds like so:
	.Dl # ztest -f / -V -T 120
	.
	.Sh ENVIRONMENT VARIABLES
	.Bl -tag -width "ZF"
	.It Ev ZFS_HOSTID Ns = Ns Em id
	Use
	.Em id
	instead of the SPL hostid to identify this host.
	Intended for use with
	.Nm , but this environment variable will affect any utility which uses
	libzpool, including
	.Xr zpool 8 .
	Since the kernel is unaware of this setting,
	results with utilities other than ztest are undefined.
	.It Ev ZFS_STACK_SIZE Ns = Ns Em stacksize
	Limit the default stack size to
	.Em stacksize
	bytes for the purpose of
	detecting and debugging kernel stack overflows.
	This value defaults to
	.Em 32K
	which is double the default
	.Em 16K
	Linux kernel stack size.
	.Pp
	In practice, setting the stack size slightly higher is needed because
	differences in stack usage between kernel and user space can lead to spurious
	stack overflows (especially when debugging is enabled).
	The specified value
	will be rounded up to a floor of PTHREAD_STACK_MIN which is the minimum stack
	required for a NULL procedure in user space.
	.Pp
	By default the stack size is limited to
	.Em 256K .
	.El
	.
	.Sh SEE ALSO
	.Xr zdb 1 ,
	.Xr zfs 1 ,
	.Xr zpool 1 ,
	-.Xr spl-module-parameters 5
	+.Xr spl 4
	diff --git a/sys/contrib/openzfs/man/man5/spl-module-parameters.5 b/sys/contrib/openzfs/man/man4/spl.4
	similarity index 99%
	rename from sys/contrib/openzfs/man/man5/spl-module-parameters.5
	rename to sys/contrib/openzfs/man/man4/spl.4
	index 88652a75ae43..11cde14ae5ca 100644
	--- a/sys/contrib/openzfs/man/man5/spl-module-parameters.5
	+++ b/sys/contrib/openzfs/man/man4/spl.4
	@@ -1,196 +1,195 @@
	.\"
	.\" The contents of this file are subject to the terms of the Common Development
	.\" and Distribution License (the "License"). You may not use this file except
	.\" in compliance with the License. You can obtain a copy of the license at
	.\" usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.
	.\"
	.\" See the License for the specific language governing permissions and
	.\" limitations under the License. When distributing Covered Code, include this
	.\" CDDL HEADER in each file and include the License file at
	.\" usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this
	.\" CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your
	.\" own identifying information:
	.\" Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" Copyright 2013 Turbo Fredriksson <turbo@bayour.com>. All rights reserved.
	.\"
	.Dd August 24, 2020
	-.Dt SPL-MODULE-PARAMETERS 5
	+.Dt SPL 4
	.Os
	.
	.Sh NAME
	-.Nm spl-module-parameters
	+.Nm spl
	.Nd parameters of the SPL kernel module
	.
	.Sh DESCRIPTION
	.Bl -tag -width Ds
	.It Sy spl_kmem_cache_kmem_threads Ns = Ns Sy 4 Pq uint
	The number of threads created for the spl_kmem_cache task queue.
	This task queue is responsible for allocating new slabs
	for use by the kmem caches.
	For the majority of systems and workloads only a small number of threads are
	required.
	.
	.It Sy spl_kmem_cache_reclaim Ns = Ns Sy 0 Pq uint
	When this is set it prevents Linux from being able to rapidly reclaim all the
	memory held by the kmem caches.
	This may be useful in circumstances where it's preferable that Linux
	reclaim memory from some other subsystem first.
	Setting this will increase the likelihood out of memory events on a memory
	constrained system.
	.
	.It Sy spl_kmem_cache_obj_per_slab Ns = Ns Sy 8 Pq uint
	The preferred number of objects per slab in the cache.
	In general, a larger value will increase the caches memory footprint
	while decreasing the time required to perform an allocation.
	Conversely, a smaller value will minimize the footprint
	and improve cache reclaim time but individual allocations may take longer.
	.
	.It Sy spl_kmem_cache_max_size Ns = Ns Sy 32 Po 64-bit Pc or Sy 4 Po 32-bit Pc Pq uint
	The maximum size of a kmem cache slab in MiB.
	This effectively limits the maximum cache object size to
	.Sy spl_kmem_cache_max_size Ns / Ns Sy spl_kmem_cache_obj_per_slab .
	.Pp
	Caches may not be created with
	object sized larger than this limit.
	.
	.It Sy spl_kmem_cache_slab_limit Ns = Ns Sy 16384 Pq uint
	For small objects the Linux slab allocator should be used to make the most
	efficient use of the memory.
	However, large objects are not supported by
	the Linux slab and therefore the SPL implementation is preferred.
	This value is used to determine the cutoff between a small and large object.
	.Pp
	Objects of size
	.Sy spl_kmem_cache_slab_limit
	or smaller will be allocated using the Linux slab allocator,
	large objects use the SPL allocator.
	A cutoff of 16K was determined to be optimal for architectures using 4K pages.
	.
	.It Sy spl_kmem_alloc_warn Ns = Ns Sy 32768 Pq uint
	As a general rule
	.Fn kmem_alloc
	allocations should be small,
	preferably just a few pages, since they must by physically contiguous.
	Therefore, a rate limited warning will be printed to the console for any
	.Fn kmem_alloc
	which exceeds a reasonable threshold.
	.Pp
	The default warning threshold is set to eight pages but capped at 32K to
	accommodate systems using large pages.
	This value was selected to be small enough to ensure
	the largest allocations are quickly noticed and fixed.
	But large enough to avoid logging any warnings when a allocation size is
	larger than optimal but not a serious concern.
	Since this value is tunable, developers are encouraged to set it lower
	when testing so any new largish allocations are quickly caught.
	These warnings may be disabled by setting the threshold to zero.
	.
	.It Sy spl_kmem_alloc_max Ns = Ns Sy KMALLOC_MAX_SIZE Ns / Ns Sy 4 Pq uint
	Large
	.Fn kmem_alloc
	allocations will fail if they exceed
	.Sy KMALLOC_MAX_SIZE .
	Allocations which are marginally smaller than this limit may succeed but
	should still be avoided due to the expense of locating a contiguous range
	of free pages.
	Therefore, a maximum kmem size with reasonable safely margin of 4x is set.
	.Fn kmem_alloc
	allocations larger than this maximum will quickly fail.
	.Fn vmem_alloc
	allocations less than or equal to this value will use
	.Fn kmalloc ,
	but shift to
	.Fn vmalloc
	when exceeding this value.
	.
	.It Sy spl_kmem_cache_magazine_size Ns = Ns Sy 0 Pq uint
	Cache magazines are an optimization designed to minimize the cost of
	allocating memory.
	They do this by keeping a per-cpu cache of recently
	freed objects, which can then be reallocated without taking a lock.
	This can improve performance on highly contended caches.
	However, because objects in magazines will prevent otherwise empty slabs
	from being immediately released this may not be ideal for low memory machines.
	.Pp
	For this reason,
	.Sy spl_kmem_cache_magazine_size
	can be used to set a maximum magazine size.
	When this value is set to 0 the magazine size will
	be automatically determined based on the object size.
	Otherwise magazines will be limited to 2-256 objects per magazine (i.e per cpu).
	Magazines may never be entirely disabled in this implementation.
	.
	.It Sy spl_hostid Ns = Ns Sy 0 Pq ulong
	The system hostid, when set this can be used to uniquely identify a system.
	By default this value is set to zero which indicates the hostid is disabled.
	It can be explicitly enabled by placing a unique non-zero value in
	.Pa /etc/hostid .
	.
	.It Sy spl_hostid_path Ns = Ns Pa /etc/hostid Pq charp
	The expected path to locate the system hostid when specified.
	This value may be overridden for non-standard configurations.
	.
	.It Sy spl_panic_halt Ns = Ns Sy 0 Pq uint
	Cause a kernel panic on assertion failures.
	When not enabled, the thread is halted to facilitate further debugging.
	.Pp
	Set to a non-zero value to enable.
	.
	.It Sy spl_taskq_kick Ns = Ns Sy 0 Pq uint
	Kick stuck taskq to spawn threads.
	When writing a non-zero value to it, it will scan all the taskqs.
	If any of them have a pending task more than 5 seconds old,
	it will kick it to spawn more threads.
	This can be used if you find a rare
	deadlock occurs because one or more taskqs didn't spawn a thread when it should.
	.
	.It Sy spl_taskq_thread_bind Ns = Ns Sy 0 Pq int
	Bind taskq threads to specific CPUs.
	When enabled all taskq threads will be distributed evenly
	across the available CPUs.
	By default, this behavior is disabled to allow the Linux scheduler
	the maximum flexibility to determine where a thread should run.
	.
	.It Sy spl_taskq_thread_dynamic Ns = Ns Sy 1 Pq int
	Allow dynamic taskqs.
	When enabled taskqs which set the
	.Sy TASKQ_DYNAMIC
	flag will by default create only a single thread.
	New threads will be created on demand up to a maximum allowed number
	to facilitate the completion of outstanding tasks.
	Threads which are no longer needed will be promptly destroyed.
	By default this behavior is enabled but it can be disabled to
	aid performance analysis or troubleshooting.
	.
	.It Sy spl_taskq_thread_priority Ns = Ns Sy 1 Pq int
	Allow newly created taskq threads to set a non-default scheduler priority.
	When enabled, the priority specified when a taskq is created will be applied
	to all threads created by that taskq.
	When disabled all threads will use the default Linux kernel thread priority.
	By default, this behavior is enabled.
	.
	.It Sy spl_taskq_thread_sequential Ns = Ns Sy 4 Pq int
	The number of items a taskq worker thread must handle without interruption
	before requesting a new worker thread be spawned.
	This is used to control
	how quickly taskqs ramp up the number of threads processing the queue.
	Because Linux thread creation and destruction are relatively inexpensive a
	small default value has been selected.
	This means that normally threads will be created aggressively which is desirable.
	Increasing this value will
	result in a slower thread creation rate which may be preferable for some
	configurations.
	.
	.It Sy spl_max_show_tasks Ns = Ns Sy 512 Pq uint
	The maximum number of tasks per pending list in each taskq shown in
	.Pa /proc/spl/taskq{,-all} .
	Write
	.Sy 0
	to turn off the limit.
	The proc file will walk the lists with lock held,
	reading it could cause a lock-up if the list grow too large
	without limiting the output.
	"(truncated)" will be shown if the list is larger than the limit.
	-.
	.El
	diff --git a/sys/contrib/openzfs/man/man5/zfs-module-parameters.5 b/sys/contrib/openzfs/man/man4/zfs.4
	similarity index 99%
	rename from sys/contrib/openzfs/man/man5/zfs-module-parameters.5
	rename to sys/contrib/openzfs/man/man4/zfs.4
	index 6dbf2749f3b7..6da8d42b42bd 100644
	--- a/sys/contrib/openzfs/man/man5/zfs-module-parameters.5
	+++ b/sys/contrib/openzfs/man/man4/zfs.4
	@@ -1,2379 +1,2380 @@
	.\"
	.\" Copyright (c) 2013 by Turbo Fredriksson <turbo@bayour.com>. All rights reserved.
	.\" Copyright (c) 2019, 2021 by Delphix. All rights reserved.
	.\" Copyright (c) 2019 Datto Inc.
	.\" The contents of this file are subject to the terms of the Common Development
	.\" and Distribution License (the "License"). You may not use this file except
	.\" in compliance with the License. You can obtain a copy of the license at
	.\" usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.
	.\"
	.\" See the License for the specific language governing permissions and
	.\" limitations under the License. When distributing Covered Code, include this
	.\" CDDL HEADER in each file and include the License file at
	.\" usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this
	.\" CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your
	.\" own identifying information:
	.\" Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.Dd June 1, 2021
	-.Dt ZFS-MODULE-PARAMETERS 5
	+.Dt ZFS 4
	.Os
	.
	.Sh NAME
	-.Nm zfs-module-parameters
	-.Nd parameters of the ZFS kernel module
	+.Nm zfs
	+.Nd tuning of the ZFS kernel module
	.
	.Sh DESCRIPTION
	+The ZFS module supports these parameters:
	.Bl -tag -width Ds
	.It Sy dbuf_cache_max_bytes Ns = Ns Sy ULONG_MAX Ns B Pq ulong
	Maximum size in bytes of the dbuf cache.
	The target size is determined by the MIN versus
	.No 1/2^ Ns Sy dbuf_cache_shift Pq 1/32nd
	of the target ARC size.
	The behavior of the dbuf cache and its associated settings
	can be observed via the
	.Pa /proc/spl/kstat/zfs/dbufstats
	kstat.
	.
	.It Sy dbuf_metadata_cache_max_bytes Ns = Ns Sy ULONG_MAX Ns B Pq ulong
	Maximum size in bytes of the metadata dbuf cache.
	The target size is determined by the MIN versus
	.No 1/2^ Ns Sy dbuf_metadata_cache_shift Pq 1/64th
	of the target ARC size.
	The behavior of the metadata dbuf cache and its associated settings
	can be observed via the
	.Pa /proc/spl/kstat/zfs/dbufstats
	kstat.
	.
	.It Sy dbuf_cache_hiwater_pct Ns = Ns Sy 10 Ns % Pq uint
	The percentage over
	.Sy dbuf_cache_max_bytes
	when dbufs must be evicted directly.
	.
	.It Sy dbuf_cache_lowater_pct Ns = Ns Sy 10 Ns % Pq uint
	The percentage below
	.Sy dbuf_cache_max_bytes
	when the evict thread stops evicting dbufs.
	.
	.It Sy dbuf_cache_shift Ns = Ns Sy 5 Pq int
	Set the size of the dbuf cache
	.Pq Sy dbuf_cache_max_bytes
	to a log2 fraction of the target ARC size.
	.
	.It Sy dbuf_metadata_cache_shift Ns = Ns Sy 6 Pq int
	Set the size of the dbuf metadata cache
	.Pq Sy dbuf_metadata_cache_max_bytes
	to a log2 fraction of the target ARC size.
	.
	.It Sy dmu_object_alloc_chunk_shift Ns = Ns Sy 7 Po 128 Pc Pq int
	dnode slots allocated in a single operation as a power of 2.
	The default value minimizes lock contention for the bulk operation performed.
	.
	.It Sy dmu_prefetch_max Ns = Ns Sy 134217728 Ns B Po 128MB Pc Pq int
	Limit the amount we can prefetch with one call to this amount in bytes.
	This helps to limit the amount of memory that can be used by prefetching.
	.
	.It Sy ignore_hole_birth Pq int
	Alias for
	.Sy send_holes_without_birth_time .
	.
	.It Sy l2arc_feed_again Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Turbo L2ARC warm-up.
	When the L2ARC is cold the fill interval will be set as fast as possible.
	.
	.It Sy l2arc_feed_min_ms Ns = Ns Sy 200 Pq ulong
	Min feed interval in milliseconds.
	Requires
	.Sy l2arc_feed_again Ns = Ns Ar 1
	and only applicable in related situations.
	.
	.It Sy l2arc_feed_secs Ns = Ns Sy 1 Pq ulong
	Seconds between L2ARC writing.
	.
	.It Sy l2arc_headroom Ns = Ns Sy 2 Pq ulong
	How far through the ARC lists to search for L2ARC cacheable content,
	expressed as a multiplier of
	.Sy l2arc_write_max .
	ARC persistence across reboots can be achieved with persistent L2ARC
	by setting this parameter to
	.Sy 0 ,
	allowing the full length of ARC lists to be searched for cacheable content.
	.
	.It Sy l2arc_headroom_boost Ns = Ns Sy 200 Ns % Pq ulong
	Scales
	.Sy l2arc_headroom
	by this percentage when L2ARC contents are being successfully compressed
	before writing.
	A value of
	.Sy 100
	disables this feature.
	.
	.It Sy l2arc_mfuonly Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Controls whether only MFU metadata and data are cached from ARC into L2ARC.
	This may be desired to avoid wasting space on L2ARC when reading/writing large
	amounts of data that are not expected to be accessed more than once.
	.Pp
	The default is off,
	meaning both MRU and MFU data and metadata are cached.
	When turning off this feature, some MRU buffers will still be present
	in ARC and eventually cached on L2ARC.
	.No If Sy l2arc_noprefetch Ns = Ns Sy 0 ,
	some prefetched buffers will be cached to L2ARC, and those might later
	transition to MRU, in which case the
	.Sy l2arc_mru_asize No arcstat will not be Sy 0 .
	.Pp
	Regardless of
	.Sy l2arc_noprefetch ,
	some MFU buffers might be evicted from ARC,
	accessed later on as prefetches and transition to MRU as prefetches.
	If accessed again they are counted as MRU and the
	.Sy l2arc_mru_asize No arcstat will not be Sy 0 .
	.Pp
	The ARC status of L2ARC buffers when they were first cached in
	L2ARC can be seen in the
	.Sy l2arc_mru_asize , Sy l2arc_mfu_asize , No and Sy l2arc_prefetch_asize
	arcstats when importing the pool or onlining a cache
	device if persistent L2ARC is enabled.
	.Pp
	The
	.Sy evict_l2_eligible_mru
	arcstat does not take into account if this option is enabled as the information
	provided by the
	.Sy evict_l2_eligible_m[rf]u
	arcstats can be used to decide if toggling this option is appropriate
	for the current workload.
	.
	.It Sy l2arc_meta_percent Ns = Ns Sy 33 Ns % Pq int
	Percent of ARC size allowed for L2ARC-only headers.
	Since L2ARC buffers are not evicted on memory pressure,
	too many headers on a system with an irrationally large L2ARC
	can render it slow or unusable.
	This parameter limits L2ARC writes and rebuilds to achieve the target.
	.
	.It Sy l2arc_trim_ahead Ns = Ns Sy 0 Ns % Pq ulong
	Trims ahead of the current write size
	.Pq Sy l2arc_write_max
	on L2ARC devices by this percentage of write size if we have filled the device.
	If set to
	.Sy 100
	we TRIM twice the space required to accommodate upcoming writes.
	A minimum of
	.Sy 64MB
	will be trimmed.
	It also enables TRIM of the whole L2ARC device upon creation
	or addition to an existing pool or if the header of the device is
	invalid upon importing a pool or onlining a cache device.
	A value of
	.Sy 0
	disables TRIM on L2ARC altogether and is the default as it can put significant
	stress on the underlying storage devices.
	This will vary depending of how well the specific device handles these commands.
	.
	.It Sy l2arc_noprefetch Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Do not write buffers to L2ARC if they were prefetched but not used by
	applications.
	In case there are prefetched buffers in L2ARC and this option
	is later set, we do not read the prefetched buffers from L2ARC.
	Unsetting this option is useful for caching sequential reads from the
	disks to L2ARC and serve those reads from L2ARC later on.
	This may be beneficial in case the L2ARC device is significantly faster
	in sequential reads than the disks of the pool.
	.Pp
	Use
	.Sy 1
	to disable and
	.Sy 0
	to enable caching/reading prefetches to/from L2ARC.
	.
	.It Sy l2arc_norw Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	No reads during writes.
	.
	.It Sy l2arc_write_boost Ns = Ns Sy 8388608 Ns B Po 8MB Pc Pq ulong
	Cold L2ARC devices will have
	.Sy l2arc_write_max
	increased by this amount while they remain cold.
	.
	.It Sy l2arc_write_max Ns = Ns Sy 8388608 Ns B Po 8MB Pc Pq ulong
	Max write bytes per interval.
	.
	.It Sy l2arc_rebuild_enabled Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Rebuild the L2ARC when importing a pool (persistent L2ARC).
	This can be disabled if there are problems importing a pool
	or attaching an L2ARC device (e.g. the L2ARC device is slow
	in reading stored log metadata, or the metadata
	has become somehow fragmented/unusable).
	.
	.It Sy l2arc_rebuild_blocks_min_l2size Ns = Ns Sy 1073741824 Ns B Po 1GB Pc Pq ulong
	Mininum size of an L2ARC device required in order to write log blocks in it.
	The log blocks are used upon importing the pool to rebuild the persistent L2ARC.
	.Pp
	For L2ARC devices less than 1GB, the amount of data
	.Fn l2arc_evict
	evicts is significant compared to the amount of restored L2ARC data.
	In this case, do not write log blocks in L2ARC in order not to waste space.
	.
	.It Sy metaslab_aliquot Ns = Ns Sy 524288 Ns B Po 512kB Pc Pq ulong
	Metaslab granularity, in bytes.
	This is roughly similar to what would be referred to as the "stripe size"
	in traditional RAID arrays.
	In normal operation, ZFS will try to write this amount of data
	to a top-level vdev before moving on to the next one.
	.
	.It Sy metaslab_bias_enabled Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Enable metaslab group biasing based on their vdevs' over- or under-utilization
	relative to the pool.
	.
	.It Sy metaslab_force_ganging Ns = Ns Sy 16777217 Ns B Ns B Po 16MB + 1B Pc Pq ulong
	Make some blocks above a certain size be gang blocks.
	This option is used by the test suite to facilitate testing.
	.
	.It Sy zfs_history_output_max Ns = Ns Sy 1048576 Ns B Ns B Po 1MB Pc Pq int
	When attempting to log an output nvlist of an ioctl in the on-disk history,
	the output will not be stored if it is larger than this size (in bytes).
	This must be less than
	.Sy DMU_MAX_ACCESS Pq 64MB .
	This applies primarily to
	.Fn zfs_ioc_channel_program Pq cf. Xr zfs-program 8 .
	.
	.It Sy zfs_keep_log_spacemaps_at_export Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Prevent log spacemaps from being destroyed during pool exports and destroys.
	.
	.It Sy zfs_metaslab_segment_weight_enabled Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Enable/disable segment-based metaslab selection.
	.
	.It Sy zfs_metaslab_switch_threshold Ns = Ns Sy 2 Pq int
	When using segment-based metaslab selection, continue allocating
	from the active metaslab until this option's
	worth of buckets have been exhausted.
	.
	.It Sy metaslab_debug_load Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Load all metaslabs during pool import.
	.
	.It Sy metaslab_debug_unload Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Prevent metaslabs from being unloaded.
	.
	.It Sy metaslab_fragmentation_factor_enabled Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Enable use of the fragmentation metric in computing metaslab weights.
	.
	.It Sy metaslab_df_max_search Ns = Ns Sy 16777216 Ns B Po 16MB Pc Pq int
	Maximum distance to search forward from the last offset.
	Without this limit, fragmented pools can see
	.Em >100`000
	iterations and
	.Fn metaslab_block_picker
	becomes the performance limiting factor on high-performance storage.
	.Pp
	With the default setting of
	.Sy 16MB ,
	we typically see less than
	.Em 500
	iterations, even with very fragmented
	.Sy ashift Ns = Ns Sy 9
	pools.
	The maximum number of iterations possible is
	.Sy metaslab_df_max_search / 2^(ashift+1) .
	With the default setting of
	.Sy 16MB
	this is
	.Em 16*1024 Pq with Sy ashift Ns = Ns Sy 9
	or
	.Em 2*1024 Pq with Sy ashift Ns = Ns Sy 12 .
	.
	.It Sy metaslab_df_use_largest_segment Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	If not searching forward (due to
	.Sy metaslab_df_max_search , metaslab_df_free_pct ,
	.No or Sy metaslab_df_alloc_threshold ) ,
	this tunable controls which segment is used.
	If set, we will use the largest free segment.
	If unset, we will use a segment of at least the requested size.
	.
	.It Sy zfs_metaslab_max_size_cache_sec Ns = Ns Sy 3600 Ns s Po 1h Pc Pq ulong
	When we unload a metaslab, we cache the size of the largest free chunk.
	We use that cached size to determine whether or not to load a metaslab
	for a given allocation.
	As more frees accumulate in that metaslab while it's unloaded,
	the cached max size becomes less and less accurate.
	After a number of seconds controlled by this tunable,
	we stop considering the cached max size and start
	considering only the histogram instead.
	.
	.It Sy zfs_metaslab_mem_limit Ns = Ns Sy 25 Ns % Pq int
	When we are loading a new metaslab, we check the amount of memory being used
	to store metaslab range trees.
	If it is over a threshold, we attempt to unload the least recently used metaslab
	to prevent the system from clogging all of its memory with range trees.
	This tunable sets the percentage of total system memory that is the threshold.
	.
	.It Sy zfs_metaslab_try_hard_before_gang Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	.Bl -item -compact
	.It
	If unset, we will first try normal allocation.
	.It
	If that fails then we will do a gang allocation.
	.It
	If that fails then we will do a "try hard" gang allocation.
	.It
	If that fails then we will have a multi-layer gang block.
	.El
	.Pp
	.Bl -item -compact
	.It
	If set, we will first try normal allocation.
	.It
	If that fails then we will do a "try hard" allocation.
	.It
	If that fails we will do a gang allocation.
	.It
	If that fails we will do a "try hard" gang allocation.
	.It
	If that fails then we will have a multi-layer gang block.
	.El
	.
	.It Sy zfs_metaslab_find_max_tries Ns = Ns Sy 100 Pq int
	When not trying hard, we only consider this number of the best metaslabs.
	This improves performance, especially when there are many metaslabs per vdev
	and the allocation can't actually be satisfied
	(so we would otherwise iterate all metaslabs).
	.
	.It Sy zfs_vdev_default_ms_count Ns = Ns Sy 200 Pq int
	When a vdev is added, target this number of metaslabs per top-level vdev.
	.
	.It Sy zfs_vdev_default_ms_shift Ns = Ns Sy 29 Po 512MB Pc Pq int
	Default limit for metaslab size.
	.
	.It Sy zfs_vdev_max_auto_ashift Ns = Ns Sy ASHIFT_MAX Po 16 Pc Pq ulong
	Maximum ashift used when optimizing for logical -> physical sector size on new
	top-level vdevs.
	.
	.It Sy zfs_vdev_min_auto_ashift Ns = Ns Sy ASHIFT_MIN Po 9 Pc Pq ulong
	Minimum ashift used when creating new top-level vdevs.
	.
	.It Sy zfs_vdev_min_ms_count Ns = Ns Sy 16 Pq int
	Minimum number of metaslabs to create in a top-level vdev.
	.
	.It Sy vdev_validate_skip Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Skip label validation steps during pool import.
	Changing is not recommended unless you know what you're doing
	and are recovering a damaged label.
	.
	.It Sy zfs_vdev_ms_count_limit Ns = Ns Sy 131072 Po 128k Pc Pq int
	Practical upper limit of total metaslabs per top-level vdev.
	.
	.It Sy metaslab_preload_enabled Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Enable metaslab group preloading.
	.
	.It Sy metaslab_lba_weighting_enabled Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Give more weight to metaslabs with lower LBAs,
	assuming they have greater bandwidth,
	as is typically the case on a modern constant angular velocity disk drive.
	.
	.It Sy metaslab_unload_delay Ns = Ns Sy 32 Pq int
	After a metaslab is used, we keep it loaded for this many TXGs, to attempt to
	reduce unnecessary reloading.
	Note that both this many TXGs and
	.Sy metaslab_unload_delay_ms
	milliseconds must pass before unloading will occur.
	.
	.It Sy metaslab_unload_delay_ms Ns = Ns Sy 600000 Ns ms Po 10min Pc Pq int
	After a metaslab is used, we keep it loaded for this many milliseconds,
	to attempt to reduce unnecessary reloading.
	Note, that both this many milliseconds and
	.Sy metaslab_unload_delay
	TXGs must pass before unloading will occur.
	.
	.It Sy reference_history Ns = Ns Sy 3 Pq int
	Maximum reference holders being tracked when reference_tracking_enable is active.
	.
	.It Sy reference_tracking_enable Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Track reference holders to
	.Sy refcount_t
	objects (debug builds only).
	.
	.It Sy send_holes_without_birth_time Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	When set, the
	.Sy hole_birth
	optimization will not be used, and all holes will always be sent during a
	.Nm zfs Cm send .
	This is useful if you suspect your datasets are affected by a bug in
	.Sy hole_birth .
	.
	.It Sy spa_config_path Ns = Ns Pa /etc/zfs/zpool.cache Pq charp
	SPA config file.
	.
	.It Sy spa_asize_inflation Ns = Ns Sy 24 Pq int
	Multiplication factor used to estimate actual disk consumption from the
	size of data being written.
	The default value is a worst case estimate,
	but lower values may be valid for a given pool depending on its configuration.
	Pool administrators who understand the factors involved
	may wish to specify a more realistic inflation factor,
	particularly if they operate close to quota or capacity limits.
	.
	.It Sy spa_load_print_vdev_tree Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Whether to print the vdev tree in the debugging message buffer during pool import.
	.
	.It Sy spa_load_verify_data Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Whether to traverse data blocks during an "extreme rewind"
	.Pq Fl X
	import.
	.Pp
	An extreme rewind import normally performs a full traversal of all
	blocks in the pool for verification.
	If this parameter is unset, the traversal skips non-metadata blocks.
	It can be toggled once the
	import has started to stop or start the traversal of non-metadata blocks.
	.
	.It Sy spa_load_verify_metadata Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Whether to traverse blocks during an "extreme rewind"
	.Pq Fl X
	pool import.
	.Pp
	An extreme rewind import normally performs a full traversal of all
	blocks in the pool for verification.
	If this parameter is unset, the traversal is not performed.
	It can be toggled once the import has started to stop or start the traversal.
	.
	.It Sy spa_load_verify_shift Ns = Ns Sy 4 Po 1/16th Pc Pq int
	Sets the maximum number of bytes to consume during pool import to the log2
	fraction of the target ARC size.
	.
	.It Sy spa_slop_shift Ns = Ns Sy 5 Po 1/32nd Pc Pq int
	Normally, we don't allow the last
	.Sy 3.2% Pq Sy 1/2^spa_slop_shift
	of space in the pool to be consumed.
	This ensures that we don't run the pool completely out of space,
	due to unaccounted changes (e.g. to the MOS).
	It also limits the worst-case time to allocate space.
	If we have less than this amount of free space,
	most ZPL operations (e.g. write, create) will return
	.Sy ENOSPC .
	.
	.It Sy vdev_removal_max_span Ns = Ns Sy 32768 Ns B Po 32kB Pc Pq int
	During top-level vdev removal, chunks of data are copied from the vdev
	which may include free space in order to trade bandwidth for IOPS.
	This parameter determines the maximum span of free space, in bytes,
	which will be included as "unnecessary" data in a chunk of copied data.
	.Pp
	The default value here was chosen to align with
	.Sy zfs_vdev_read_gap_limit ,
	which is a similar concept when doing
	regular reads (but there's no reason it has to be the same).
	.
	.It Sy vdev_file_logical_ashift Ns = Ns Sy 9 Po 512B Pc Pq ulong
	Logical ashift for file-based devices.
	.
	.It Sy vdev_file_physical_ashift Ns = Ns Sy 9 Po 512B Pc Pq ulong
	Physical ashift for file-based devices.
	.
	.It Sy zap_iterate_prefetch Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	If set, when we start iterating over a ZAP object,
	prefetch the entire object (all leaf blocks).
	However, this is limited by
	.Sy dmu_prefetch_max .
	.
	.It Sy zfetch_array_rd_sz Ns = Ns Sy 1048576 Ns B Po 1MB Pc Pq ulong
	If prefetching is enabled, disable prefetching for reads larger than this size.
	.
	.It Sy zfetch_max_distance Ns = Ns Sy 8388608 Ns B Po 8MB Pc Pq uint
	Max bytes to prefetch per stream.
	.
	.It Sy zfetch_max_idistance Ns = Ns Sy 67108864 Ns B Po 64MB Pc Pq uint
	Max bytes to prefetch indirects for per stream.
	.
	.It Sy zfetch_max_streams Ns = Ns Sy 8 Pq uint
	Max number of streams per zfetch (prefetch streams per file).
	.
	.It Sy zfetch_min_sec_reap Ns = Ns Sy 2 Pq uint
	Min time before an active prefetch stream can be reclaimed
	.
	.It Sy zfs_abd_scatter_enabled Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Enables ARC from using scatter/gather lists and forces all allocations to be
	linear in kernel memory.
	Disabling can improve performance in some code paths
	at the expense of fragmented kernel memory.
	.
	.It Sy zfs_abd_scatter_max_order Ns = Ns Sy MAX_ORDER-1 Pq uint
	Maximum number of consecutive memory pages allocated in a single block for
	scatter/gather lists.
	.Pp
	The value of
	.Sy MAX_ORDER
	depends on kernel configuration.
	.
	.It Sy zfs_abd_scatter_min_size Ns = Ns Sy 1536 Ns B Po 1.5kB Pc Pq uint
	This is the minimum allocation size that will use scatter (page-based) ABDs.
	Smaller allocations will use linear ABDs.
	.
	.It Sy zfs_arc_dnode_limit Ns = Ns Sy 0 Ns B Pq ulong
	When the number of bytes consumed by dnodes in the ARC exceeds this number of
	bytes, try to unpin some of it in response to demand for non-metadata.
	This value acts as a ceiling to the amount of dnode metadata, and defaults to
	.Sy 0 ,
	which indicates that a percent which is based on
	.Sy zfs_arc_dnode_limit_percent
	of the ARC meta buffers that may be used for dnodes.
	.Pp
	Also see
	.Sy zfs_arc_meta_prune
	which serves a similar purpose but is used
	when the amount of metadata in the ARC exceeds
	.Sy zfs_arc_meta_limit
	rather than in response to overall demand for non-metadata.
	.
	.It Sy zfs_arc_dnode_limit_percent Ns = Ns Sy 10 Ns % Pq ulong
	Percentage that can be consumed by dnodes of ARC meta buffers.
	.Pp
	See also
	.Sy zfs_arc_dnode_limit ,
	which serves a similar purpose but has a higher priority if nonzero.
	.
	.It Sy zfs_arc_dnode_reduce_percent Ns = Ns Sy 10 Ns % Pq ulong
	Percentage of ARC dnodes to try to scan in response to demand for non-metadata
	when the number of bytes consumed by dnodes exceeds
	.Sy zfs_arc_dnode_limit .
	.
	.It Sy zfs_arc_average_blocksize Ns = Ns Sy 8192 Ns B Po 8kB Pc Pq int
	The ARC's buffer hash table is sized based on the assumption of an average
	block size of this value.
	This works out to roughly 1MB of hash table per 1GB of physical memory
	with 8-byte pointers.
	For configurations with a known larger average block size,
	this value can be increased to reduce the memory footprint.
	.
	.It Sy zfs_arc_eviction_pct Ns = Ns Sy 200 Ns % Pq int
	When
	.Fn arc_is_overflowing ,
	.Fn arc_get_data_impl
	waits for this percent of the requested amount of data to be evicted.
	For example, by default, for every
	.Em 2kB
	that's evicted,
	.Em 1kB
	of it may be "reused" by a new allocation.
	Since this is above
	.Sy 100 Ns % ,
	it ensures that progress is made towards getting
	.Sy arc_size No under Sy arc_c .
	Since this is finite, it ensures that allocations can still happen,
	even during the potentially long time that
	.Sy arc_size No is more than Sy arc_c .
	.
	.It Sy zfs_arc_evict_batch_limit Ns = Ns Sy 10 Pq int
	Number ARC headers to evict per sub-list before proceeding to another sub-list.
	This batch-style operation prevents entire sub-lists from being evicted at once
	but comes at a cost of additional unlocking and locking.
	.
	.It Sy zfs_arc_grow_retry Ns = Ns Sy 0 Ns s Pq int
	If set to a non zero value, it will replace the
	.Sy arc_grow_retry
	value with this value.
	The
	.Sy arc_grow_retry
	.No value Pq default Sy 5 Ns s
	is the number of seconds the ARC will wait before
	trying to resume growth after a memory pressure event.
	.
	.It Sy zfs_arc_lotsfree_percent Ns = Ns Sy 10 Ns % Pq int
	Throttle I/O when free system memory drops below this percentage of total
	system memory.
	Setting this value to
	.Sy 0
	will disable the throttle.
	.
	.It Sy zfs_arc_max Ns = Ns Sy 0 Ns B Pq ulong
	Max size of ARC in bytes.
	If
	.Sy 0 ,
	then the max size of ARC is determined by the amount of system memory installed.
	Under Linux, half of system memory will be used as the limit.
	Under
	.Fx ,
	the larger of
	.Sy all_system_memory - 1GB No and Sy 5/8 * all_system_memory
	will be used as the limit.
	This value must be at least
	.Sy 67108864 Ns B Pq 64MB .
	.Pp
	This value can be changed dynamically, with some caveats.
	It cannot be set back to
	.Sy 0
	while running, and reducing it below the current ARC size will not cause
	the ARC to shrink without memory pressure to induce shrinking.
	.
	.It Sy zfs_arc_meta_adjust_restarts Ns = Ns Sy 4096 Pq ulong
	The number of restart passes to make while scanning the ARC attempting
	the free buffers in order to stay below the
	.Sy fs_arc_meta_limit .
	This value should not need to be tuned but is available to facilitate
	performance analysis.
	.
	.It Sy zfs_arc_meta_limit Ns = Ns Sy 0 Ns B Pq ulong
	The maximum allowed size in bytes that metadata buffers are allowed to
	consume in the ARC.
	When this limit is reached, metadata buffers will be reclaimed,
	even if the overall
	.Sy arc_c_max
	has not been reached.
	It defaults to
	.Sy 0 ,
	which indicates that a percentage based on
	.Sy zfs_arc_meta_limit_percent
	of the ARC may be used for metadata.
	.Pp
	This value my be changed dynamically, except that must be set to an explicit value
	.Pq cannot be set back to Sy 0 .
	.
	.It Sy zfs_arc_meta_limit_percent Ns = Ns Sy 75 Ns % Pq ulong
	Percentage of ARC buffers that can be used for metadata.
	.Pp
	See also
	.Sy zfs_arc_meta_limit ,
	which serves a similar purpose but has a higher priority if nonzero.
	.
	.It Sy zfs_arc_meta_min Ns = Ns Sy 0 Ns B Pq ulong
	The minimum allowed size in bytes that metadata buffers may consume in
	the ARC.
	.
	.It Sy zfs_arc_meta_prune Ns = Ns Sy 10000 Pq int
	The number of dentries and inodes to be scanned looking for entries
	which can be dropped.
	This may be required when the ARC reaches the
	.Sy zfs_arc_meta_limit
	because dentries and inodes can pin buffers in the ARC.
	Increasing this value will cause to dentry and inode caches
	to be pruned more aggressively.
	Setting this value to
	.Sy 0
	will disable pruning the inode and dentry caches.
	.
	.It Sy zfs_arc_meta_strategy Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Define the strategy for ARC metadata buffer eviction (meta reclaim strategy):
	.Bl -tag -compact -offset 4n -width "0 (META_ONLY)"
	.It Sy 0 Pq META_ONLY
	evict only the ARC metadata buffers
	.It Sy 1 Pq BALANCED
	additional data buffers may be evicted if required
	to evict the required number of metadata buffers.
	.El
	.
	.It Sy zfs_arc_min Ns = Ns Sy 0 Ns B Pq ulong
	Min size of ARC in bytes.
	.No If set to Sy 0 , arc_c_min
	will default to consuming the larger of
	.Sy 32MB No or Sy all_system_memory/32 .
	.
	.It Sy zfs_arc_min_prefetch_ms Ns = Ns Sy 0 Ns ms Ns Po Ns ≡ Ns 1s Pc Pq int
	Minimum time prefetched blocks are locked in the ARC.
	.
	.It Sy zfs_arc_min_prescient_prefetch_ms Ns = Ns Sy 0 Ns ms Ns Po Ns ≡ Ns 6s Pc Pq int
	Minimum time "prescient prefetched" blocks are locked in the ARC.
	These blocks are meant to be prefetched fairly aggressively ahead of
	the code that may use them.
	.
	.It Sy zfs_max_missing_tvds Ns = Ns Sy 0 Pq int
	Number of missing top-level vdevs which will be allowed during
	pool import (only in read-only mode).
	.
	.It Sy zfs_max_nvlist_src_size Ns = Sy 0 Pq ulong
	Maximum size in bytes allowed to be passed as
	.Sy zc_nvlist_src_size
	for ioctls on
	.Pa /dev/zfs .
	This prevents a user from causing the kernel to allocate
	an excessive amount of memory.
	When the limit is exceeded, the ioctl fails with
	.Sy EINVAL
	and a description of the error is sent to the
	.Pa zfs-dbgmsg
	log.
	This parameter should not need to be touched under normal circumstances.
	If
	.Sy 0 ,
	equivalent to a quarter of the user-wired memory limit under
	.Fx
	and to
	.Sy 134217728 Ns B Pq 128MB
	under Linux.
	.
	.It Sy zfs_multilist_num_sublists Ns = Ns Sy 0 Pq int
	To allow more fine-grained locking, each ARC state contains a series
	of lists for both data and metadata objects.
	Locking is performed at the level of these "sub-lists".
	This parameters controls the number of sub-lists per ARC state,
	and also applies to other uses of the multilist data structure.
	.Pp
	If
	.Sy 0 ,
	equivalent to the greater of the number of online CPUs and
	.Sy 4 .
	.
	.It Sy zfs_arc_overflow_shift Ns = Ns Sy 8 Pq int
	The ARC size is considered to be overflowing if it exceeds the current
	ARC target size
	.Pq Sy arc_c
	by a threshold determined by this parameter.
	The threshold is calculated as a fraction of
	.Sy arc_c
	using the formula
	.Sy arc_c >> zfs_arc_overflow_shift .
	.Pp
	The default value of
	.Sy 8
	causes the ARC to be considered overflowing if it exceeds the target size by
	.Em 1/256th Pq Em 0.3%
	of the target size.
	.Pp
	When the ARC is overflowing, new buffer allocations are stalled until
	the reclaim thread catches up and the overflow condition no longer exists.
	.
	.It Sy zfs_arc_p_min_shift Ns = Ns Sy 0 Pq int
	If nonzero, this will update
	.Sy arc_p_min_shift Pq default Sy 4
	with the new value.
	.Sy arc_p_min_shift No is used as a shift of Sy arc_c
	when calculating the minumum
	.Sy arc_p No size.
	.
	.It Sy zfs_arc_p_dampener_disable Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Disable
	.Sy arc_p
	adapt dampener, which reduces the maximum single adjustment to
	.Sy arc_p .
	.
	.It Sy zfs_arc_shrink_shift Ns = Ns Sy 0 Pq int
	If nonzero, this will update
	.Sy arc_shrink_shift Pq default Sy 7
	with the new value.
	.
	.It Sy zfs_arc_pc_percent Ns = Ns Sy 0 Ns % Po off Pc Pq uint
	Percent of pagecache to reclaim ARC to.
	.Pp
	This tunable allows the ZFS ARC to play more nicely
	with the kernel's LRU pagecache.
	It can guarantee that the ARC size won't collapse under scanning
	pressure on the pagecache, yet still allows the ARC to be reclaimed down to
	.Sy zfs_arc_min
	if necessary.
	This value is specified as percent of pagecache size (as measured by
	.Sy NR_FILE_PAGES ) ,
	where that percent may exceed
	.Sy 100 .
	This
	only operates during memory pressure/reclaim.
	.
	.It Sy zfs_arc_shrinker_limit Ns = Ns Sy 10000 Pq int
	This is a limit on how many pages the ARC shrinker makes available for
	eviction in response to one page allocation attempt.
	Note that in practice, the kernel's shrinker can ask us to evict
	up to about four times this for one allocation attempt.
	.Pp
	The default limit of
	.Sy 10000 Pq in practice, Em 160MB No per allocation attempt with 4kB pages
	limits the amount of time spent attempting to reclaim ARC memory to
	less than 100ms per allocation attempt,
	even with a small average compressed block size of ~8kB.
	.Pp
	The parameter can be set to 0 (zero) to disable the limit,
	and only applies on Linux.
	.
	.It Sy zfs_arc_sys_free Ns = Ns Sy 0 Ns B Pq ulong
	The target number of bytes the ARC should leave as free memory on the system.
	If zero, equivalent to the bigger of
	.Sy 512kB No and Sy all_system_memory/64 .
	.
	.It Sy zfs_autoimport_disable Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Disable pool import at module load by ignoring the cache file
	.Pq Sy spa_config_path .
	.
	.It Sy zfs_checksum_events_per_second Ns = Ns Sy 20 Ns /s Pq uint
	Rate limit checksum events to this many per second.
	Note that this should not be set below the ZED thresholds
	(currently 10 checksums over 10 seconds)
	or else the daemon may not trigger any action.
	.
	.It Sy zfs_commit_timeout_pct Ns = Ns Sy 5 Ns % Pq int
	This controls the amount of time that a ZIL block (lwb) will remain "open"
	when it isn't "full", and it has a thread waiting for it to be committed to
	stable storage.
	The timeout is scaled based on a percentage of the last lwb
	latency to avoid significantly impacting the latency of each individual
	transaction record (itx).
	.
	.It Sy zfs_condense_indirect_commit_entry_delay_ms Ns = Ns Sy 0 Ns ms Pq int
	Vdev indirection layer (used for device removal) sleeps for this many
	milliseconds during mapping generation.
	Intended for use with the test suite to throttle vdev removal speed.
	.
	.It Sy zfs_condense_indirect_obsolete_pct Ns = Ns Sy 25 Ns % Pq int
	Minimum percent of obsolete bytes in vdev mapping required to attempt to condense
	.Pq see Sy zfs_condense_indirect_vdevs_enable .
	Intended for use with the test suite
	to facilitate triggering condensing as needed.
	.
	.It Sy zfs_condense_indirect_vdevs_enable Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Enable condensing indirect vdev mappings.
	When set, attempt to condense indirect vdev mappings
	if the mapping uses more than
	.Sy zfs_condense_min_mapping_bytes
	bytes of memory and if the obsolete space map object uses more than
	.Sy zfs_condense_max_obsolete_bytes
	bytes on-disk.
	The condensing process is an attempt to save memory by removing obsolete mappings.
	.
	.It Sy zfs_condense_max_obsolete_bytes Ns = Ns Sy 1073741824 Ns B Po 1GB Pc Pq ulong
	Only attempt to condense indirect vdev mappings if the on-disk size
	of the obsolete space map object is greater than this number of bytes
	.Pq see Sy zfs_condense_indirect_vdevs_enable .
	.
	.It Sy zfs_condense_min_mapping_bytes Ns = Ns Sy 131072 Ns B Po 128kB Pc Pq ulong
	Minimum size vdev mapping to attempt to condense
	.Pq see Sy zfs_condense_indirect_vdevs_enable .
	.
	.It Sy zfs_dbgmsg_enable Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Internally ZFS keeps a small log to facilitate debugging.
	The log is enabled by default, and can be disabled by unsetting this option.
	The contents of the log can be accessed by reading
	.Pa /proc/spl/kstat/zfs/dbgmsg .
	Writing
	.Sy 0
	to the file clears the log.
	.Pp
	This setting does not influence debug prints due to
	.Sy zfs_flags .
	.
	.It Sy zfs_dbgmsg_maxsize Ns = Ns Sy 4194304 Ns B Po 4MB Pc Pq int
	Maximum size of the internal ZFS debug log.
	.
	.It Sy zfs_dbuf_state_index Ns = Ns Sy 0 Pq int
	Historically used for controlling what reporting was available under
	.Pa /proc/spl/kstat/zfs .
	No effect.
	.
	.It Sy zfs_deadman_enabled Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	When a pool sync operation takes longer than
	.Sy zfs_deadman_synctime_ms ,
	or when an individual I/O operation takes longer than
	.Sy zfs_deadman_ziotime_ms ,
	then the operation is considered to be "hung".
	If
	.Sy zfs_deadman_enabled
	is set, then the deadman behavior is invoked as described by
	.Sy zfs_deadman_failmode .
	By default, the deadman is enabled and set to
	.Sy wait
	which results in "hung" I/Os only being logged.
	The deadman is automatically disabled when a pool gets suspended.
	.
	.It Sy zfs_deadman_failmode Ns = Ns Sy wait Pq charp
	Controls the failure behavior when the deadman detects a "hung" I/O operation.
	Valid values are:
	.Bl -tag -compact -offset 4n -width "continue"
	.It Sy wait
	Wait for a "hung" operation to complete.
	For each "hung" operation a "deadman" event will be posted
	describing that operation.
	.It Sy continue
	Attempt to recover from a "hung" operation by re-dispatching it
	to the I/O pipeline if possible.
	.It Sy panic
	Panic the system.
	This can be used to facilitate automatic fail-over
	to a properly configured fail-over partner.
	.El
	.
	.It Sy zfs_deadman_checktime_ms Ns = Ns Sy 60000 Ns ms Po 1min Pc Pq int
	Check time in milliseconds.
	This defines the frequency at which we check for hung I/O requests
	and potentially invoke the
	.Sy zfs_deadman_failmode
	behavior.
	.
	.It Sy zfs_deadman_synctime_ms Ns = Ns Sy 600000 Ns ms Po 10min Pc Pq ulong
	Interval in milliseconds after which the deadman is triggered and also
	the interval after which a pool sync operation is considered to be "hung".
	Once this limit is exceeded the deadman will be invoked every
	.Sy zfs_deadman_checktime_ms
	milliseconds until the pool sync completes.
	.
	.It Sy zfs_deadman_ziotime_ms Ns = Ns Sy 300000 Ns ms Po 5min Pc Pq ulong
	Interval in milliseconds after which the deadman is triggered and an
	individual I/O operation is considered to be "hung".
	As long as the operation remains "hung",
	the deadman will be invoked every
	.Sy zfs_deadman_checktime_ms
	milliseconds until the operation completes.
	.
	.It Sy zfs_dedup_prefetch Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Enable prefetching dedup-ed blocks which are going to be freed.
	.
	.It Sy zfs_delay_min_dirty_percent Ns = Ns Sy 60 Ns % Pq int
	Start to delay each transaction once there is this amount of dirty data,
	expressed as a percentage of
	.Sy zfs_dirty_data_max .
	This value should be at least
	.Sy zfs_vdev_async_write_active_max_dirty_percent .
	.No See Sx ZFS TRANSACTION DELAY .
	.
	.It Sy zfs_delay_scale Ns = Ns Sy 500000 Pq int
	This controls how quickly the transaction delay approaches infinity.
	Larger values cause longer delays for a given amount of dirty data.
	.Pp
	For the smoothest delay, this value should be about 1 billion divided
	by the maximum number of operations per second.
	This will smoothly handle between ten times and a tenth of this number.
	.No See Sx ZFS TRANSACTION DELAY .
	.Pp
	.Sy zfs_delay_scale * zfs_dirty_data_max Em must be smaller than Sy 2^64 .
	.
	.It Sy zfs_disable_ivset_guid_check Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Disables requirement for IVset GUIDs to be present and match when doing a raw
	receive of encrypted datasets.
	Intended for users whose pools were created with
	OpenZFS pre-release versions and now have compatibility issues.
	.
	.It Sy zfs_key_max_salt_uses Ns = Ns Sy 400000000 Po 4*10^8 Pc Pq ulong
	Maximum number of uses of a single salt value before generating a new one for
	encrypted datasets.
	The default value is also the maximum.
	.
	.It Sy zfs_object_mutex_size Ns = Ns Sy 64 Pq uint
	Size of the znode hashtable used for holds.
	.Pp
	Due to the need to hold locks on objects that may not exist yet, kernel mutexes
	are not created per-object and instead a hashtable is used where collisions
	will result in objects waiting when there is not actually contention on the
	same object.
	.
	.It Sy zfs_slow_io_events_per_second Ns = Ns Sy 20 Ns /s Pq int
	Rate limit delay and deadman zevents (which report slow I/Os) to this many per
	second.
	.
	.It Sy zfs_unflushed_max_mem_amt Ns = Ns Sy 1073741824 Ns B Po 1GB Pc Pq ulong
	Upper-bound limit for unflushed metadata changes to be held by the
	log spacemap in memory, in bytes.
	.
	.It Sy zfs_unflushed_max_mem_ppm Ns = Ns Sy 1000 Ns ppm Po 0.1% Pc Pq ulong
	Part of overall system memory that ZFS allows to be used
	for unflushed metadata changes by the log spacemap, in millionths.
	.
	.It Sy zfs_unflushed_log_block_max Ns = Ns Sy 262144 Po 256k Pc Pq ulong
	Describes the maximum number of log spacemap blocks allowed for each pool.
	The default value means that the space in all the log spacemaps
	can add up to no more than
	.Sy 262144
	blocks (which means
	.Em 32GB
	of logical space before compression and ditto blocks,
	assuming that blocksize is
	.Em 128kB ) .
	.Pp
	This tunable is important because it involves a trade-off between import
	time after an unclean export and the frequency of flushing metaslabs.
	The higher this number is, the more log blocks we allow when the pool is
	active which means that we flush metaslabs less often and thus decrease
	the number of I/Os for spacemap updates per TXG.
	At the same time though, that means that in the event of an unclean export,
	there will be more log spacemap blocks for us to read, inducing overhead
	in the import time of the pool.
	The lower the number, the amount of flushing increases, destroying log
	blocks quicker as they become obsolete faster, which leaves less blocks
	to be read during import time after a crash.
	.Pp
	Each log spacemap block existing during pool import leads to approximately
	one extra logical I/O issued.
	This is the reason why this tunable is exposed in terms of blocks rather
	than space used.
	.
	.It Sy zfs_unflushed_log_block_min Ns = Ns Sy 1000 Pq ulong
	If the number of metaslabs is small and our incoming rate is high,
	we could get into a situation that we are flushing all our metaslabs every TXG.
	Thus we always allow at least this many log blocks.
	.
	.It Sy zfs_unflushed_log_block_pct Ns = Ns Sy 400 Ns % Pq ulong
	Tunable used to determine the number of blocks that can be used for
	the spacemap log, expressed as a percentage of the total number of
	metaslabs in the pool.
	.
	.It Sy zfs_unlink_suspend_progress Ns = Ns Sy 0 Ns \| Ns 1 Pq uint
	When enabled, files will not be asynchronously removed from the list of pending
	unlinks and the space they consume will be leaked.
	Once this option has been disabled and the dataset is remounted,
	the pending unlinks will be processed and the freed space returned to the pool.
	This option is used by the test suite.
	.
	.It Sy zfs_delete_blocks Ns = Ns Sy 20480 Pq ulong
	This is the used to define a large file for the purposes of deletion.
	Files containing more than
	.Sy zfs_delete_blocks
	will be deleted asynchronously, while smaller files are deleted synchronously.
	Decreasing this value will reduce the time spent in an
	.Xr unlink 2
	system call, at the expense of a longer delay before the freed space is available.
	.
	.It Sy zfs_dirty_data_max Ns = Pq int
	Determines the dirty space limit in bytes.
	Once this limit is exceeded, new writes are halted until space frees up.
	This parameter takes precedence over
	.Sy zfs_dirty_data_max_percent .
	.No See Sx ZFS TRANSACTION DELAY .
	.Pp
	Defaults to
	.Sy physical_ram/10 ,
	capped at
	.Sy zfs_dirty_data_max_max .
	.
	.It Sy zfs_dirty_data_max_max Ns = Pq int
	Maximum allowable value of
	.Sy zfs_dirty_data_max ,
	expressed in bytes.
	This limit is only enforced at module load time, and will be ignored if
	.Sy zfs_dirty_data_max
	is later changed.
	This parameter takes precedence over
	.Sy zfs_dirty_data_max_max_percent .
	.No See Sx ZFS TRANSACTION DELAY .
	.Pp
	Defaults to
	.Sy physical_ram/4 ,
	.
	.It Sy zfs_dirty_data_max_max_percent Ns = Ns Sy 25 Ns % Pq int
	Maximum allowable value of
	.Sy zfs_dirty_data_max ,
	expressed as a percentage of physical RAM.
	This limit is only enforced at module load time, and will be ignored if
	.Sy zfs_dirty_data_max
	is later changed.
	The parameter
	.Sy zfs_dirty_data_max_max
	takes precedence over this one.
	.No See Sx ZFS TRANSACTION DELAY .
	.
	.It Sy zfs_dirty_data_max_percent Ns = Ns Sy 10 Ns % Pq int
	Determines the dirty space limit, expressed as a percentage of all memory.
	Once this limit is exceeded, new writes are halted until space frees up.
	The parameter
	.Sy zfs_dirty_data_max
	takes precedence over this one.
	.No See Sx ZFS TRANSACTION DELAY .
	.Pp
	Subject to
	.Sy zfs_dirty_data_max_max .
	.
	.It Sy zfs_dirty_data_sync_percent Ns = Ns Sy 20 Ns % Pq int
	Start syncing out a transaction group if there's at least this much dirty data
	.Pq as a percentage of Sy zfs_dirty_data_max .
	This should be less than
	.Sy zfs_vdev_async_write_active_min_dirty_percent .
	.
	.It Sy zfs_fallocate_reserve_percent Ns = Ns Sy 110 Ns % Pq uint
	Since ZFS is a copy-on-write filesystem with snapshots, blocks cannot be
	preallocated for a file in order to guarantee that later writes will not
	run out of space.
	Instead,
	.Xr fallocate 2
	space preallocation only checks that sufficient space is currently available
	in the pool or the user's project quota allocation,
	and then creates a sparse file of the requested size.
	The requested space is multiplied by
	.Sy zfs_fallocate_reserve_percent
	to allow additional space for indirect blocks and other internal metadata.
	Setting this to
	.Sy 0
	disables support for
	.Xr fallocate 2
	and causes it to return
	.Sy EOPNOTSUPP .
	.
	.It Sy zfs_fletcher_4_impl Ns = Ns Sy fastest Pq string
	Select a fletcher 4 implementation.
	.Pp
	Supported selectors are:
	.Sy fastest , scalar , sse2 , ssse3 , avx2 , avx512f , avx512bw ,
	.No and Sy aarch64_neon .
	All except
	.Sy fastest No and Sy scalar
	require instruction set extensions to be available,
	and will only appear if ZFS detects that they are present at runtime.
	If multiple implementations of fletcher 4 are available, the
	.Sy fastest
	will be chosen using a micro benchmark.
	Selecting
	.Sy scalar
	results in the original CPU-based calculation being used.
	Selecting any option other than
	.Sy fastest No or Sy scalar
	results in vector instructions
	from the respective CPU instruction set being used.
	.
	.It Sy zfs_free_bpobj_enabled Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Enable/disable the processing of the free_bpobj object.
	.
	.It Sy zfs_async_block_max_blocks Ns = Ns Sy ULONG_MAX Po unlimited Pc Pq ulong
	Maximum number of blocks freed in a single TXG.
	.
	.It Sy zfs_max_async_dedup_frees Ns = Ns Sy 100000 Po 10^5 Pc Pq ulong
	Maximum number of dedup blocks freed in a single TXG.
	.
	.It Sy zfs_override_estimate_recordsize Ns = Ns Sy 0 Pq ulong
	If nonzer, override record size calculation for
	.Nm zfs Cm send
	estimates.
	.
	.It Sy zfs_vdev_async_read_max_active Ns = Ns Sy 3 Pq int
	Maximum asynchronous read I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_async_read_min_active Ns = Ns Sy 1 Pq int
	Minimum asynchronous read I/O operation active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_async_write_active_max_dirty_percent Ns = Ns Sy 60 Ns % Pq int
	When the pool has more than this much dirty data, use
	.Sy zfs_vdev_async_write_max_active
	to limit active async writes.
	If the dirty data is between the minimum and maximum,
	the active I/O limit is linearly interpolated.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_async_write_active_min_dirty_percent Ns = Ns Sy 30 Ns % Pq int
	When the pool has less than this much dirty data, use
	.Sy zfs_vdev_async_write_min_active
	to limit active async writes.
	If the dirty data is between the minimum and maximum,
	the active I/O limit is linearly
	interpolated.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_async_write_max_active Ns = Ns Sy 30 Pq int
	Maximum asynchronous write I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_async_write_min_active Ns = Ns Sy 2 Pq int
	Minimum asynchronous write I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.Pp
	Lower values are associated with better latency on rotational media but poorer
	resilver performance.
	The default value of
	.Sy 2
	was chosen as a compromise.
	A value of
	.Sy 3
	has been shown to improve resilver performance further at a cost of
	further increasing latency.
	.
	.It Sy zfs_vdev_initializing_max_active Ns = Ns Sy 1 Pq int
	Maximum initializing I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_initializing_min_active Ns = Ns Sy 1 Pq int
	Minimum initializing I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_max_active Ns = Ns Sy 1000 Pq int
	The maximum number of I/O operations active to each device.
	Ideally, this will be at least the sum of each queue's
	.Sy max_active .
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_rebuild_max_active Ns = Ns Sy 3 Pq int
	Maximum sequential resilver I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_rebuild_min_active Ns = Ns Sy 1 Pq int
	Minimum sequential resilver I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_removal_max_active Ns = Ns Sy 2 Pq int
	Maximum removal I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_removal_min_active Ns = Ns Sy 1 Pq int
	Minimum removal I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_scrub_max_active Ns = Ns Sy 2 Pq int
	Maximum scrub I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_scrub_min_active Ns = Ns Sy 1 Pq int
	Minimum scrub I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_sync_read_max_active Ns = Ns Sy 10 Pq int
	Maximum synchronous read I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_sync_read_min_active Ns = Ns Sy 10 Pq int
	Minimum synchronous read I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_sync_write_max_active Ns = Ns Sy 10 Pq int
	Maximum synchronous write I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_sync_write_min_active Ns = Ns Sy 10 Pq int
	Minimum synchronous write I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_trim_max_active Ns = Ns Sy 2 Pq int
	Maximum trim/discard I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_trim_min_active Ns = Ns Sy 1 Pq int
	Minimum trim/discard I/O operations active to each device.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_nia_delay Ns = Ns Sy 5 Pq int
	For non-interactive I/O (scrub, resilver, removal, initialize and rebuild),
	the number of concurrently-active I/O operations is limited to
	.Sy zfs_*_min_active ,
	unless the vdev is "idle".
	When there are no interactive I/O operatinons active (synchronous or otherwise),
	and
	.Sy zfs_vdev_nia_delay
	operations have completed since the last interactive operation,
	then the vdev is considered to be "idle",
	and the number of concurrently-active non-interactive operations is increased to
	.Sy zfs_*_max_active .
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_nia_credit Ns = Ns Sy 5 Pq int
	Some HDDs tend to prioritize sequential I/O so strongly, that concurrent
	random I/O latency reaches several seconds.
	On some HDDs this happens even if sequential I/O operations
	are submitted one at a time, and so setting
	.Sy zfs_*_max_active Ns = Sy 1
	does not help.
	To prevent non-interactive I/O, like scrub,
	from monopolizing the device, no more than
	.Sy zfs_vdev_nia_credit operations can be sent
	while there are outstanding incomplete interactive operations.
	This enforced wait ensures the HDD services the interactive I/O
	within a reasonable amount of time.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_queue_depth_pct Ns = Ns Sy 1000 Ns % Pq int
	Maximum number of queued allocations per top-level vdev expressed as
	a percentage of
	.Sy zfs_vdev_async_write_max_active ,
	which allows the system to detect devices that are more capable
	of handling allocations and to allocate more blocks to those devices.
	This allows for dynamic allocation distribution when devices are imbalanced,
	as fuller devices will tend to be slower than empty devices.
	.Pp
	Also see
	.Sy zio_dva_throttle_enabled .
	.
	.It Sy zfs_expire_snapshot Ns = Ns Sy 300 Ns s Pq int
	Time before expiring
	.Pa .zfs/snapshot .
	.
	.It Sy zfs_admin_snapshot Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Allow the creation, removal, or renaming of entries in the
	.Sy .zfs/snapshot
	directory to cause the creation, destruction, or renaming of snapshots.
	When enabled, this functionality works both locally and over NFS exports
	which have the
	.Em no_root_squash
	option set.
	.
	.It Sy zfs_flags Ns = Ns Sy 0 Pq int
	Set additional debugging flags.
	The following flags may be bitwise-ored together:
	.TS
	box;
	lbz r l l .
	Value Symbolic Name Description
	_
	1 ZFS_DEBUG_DPRINTF Enable dprintf entries in the debug log.
	* 2 ZFS_DEBUG_DBUF_VERIFY Enable extra dbuf verifications.
	* 4 ZFS_DEBUG_DNODE_VERIFY Enable extra dnode verifications.
	8 ZFS_DEBUG_SNAPNAMES Enable snapshot name verification.
	16 ZFS_DEBUG_MODIFY Check for illegally modified ARC buffers.
	64 ZFS_DEBUG_ZIO_FREE Enable verification of block frees.
	128 ZFS_DEBUG_HISTOGRAM_VERIFY Enable extra spacemap histogram verifications.
	256 ZFS_DEBUG_METASLAB_VERIFY Verify space accounting on disk matches in-memory \fBrange_trees\fP.
	512 ZFS_DEBUG_SET_ERROR Enable \fBSET_ERROR\fP and dprintf entries in the debug log.
	1024 ZFS_DEBUG_INDIRECT_REMAP Verify split blocks created by device removal.
	2048 ZFS_DEBUG_TRIM Verify TRIM ranges are always within the allocatable range tree.
	4096 ZFS_DEBUG_LOG_SPACEMAP Verify that the log summary is consistent with the spacemap log
	and enable \fBzfs_dbgmsgs\fP for metaslab loading and flushing.
	.TE
	.Sy \& * No Requires debug build.
	.
	.It Sy zfs_free_leak_on_eio Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	If destroy encounters an
	.Sy EIO
	while reading metadata (e.g. indirect blocks),
	space referenced by the missing metadata can not be freed.
	Normally this causes the background destroy to become "stalled",
	as it is unable to make forward progress.
	While in this stalled state, all remaining space to free
	from the error-encountering filesystem is "temporarily leaked".
	Set this flag to cause it to ignore the
	.Sy EIO ,
	permanently leak the space from indirect blocks that can not be read,
	and continue to free everything else that it can.
	.Pp
	The default "stalling" behavior is useful if the storage partially
	fails (i.e. some but not all I/O operations fail), and then later recovers.
	In this case, we will be able to continue pool operations while it is
	partially failed, and when it recovers, we can continue to free the
	space, with no leaks.
	Note, however, that this case is actually fairly rare.
	.Pp
	Typically pools either
	.Bl -enum -compact -offset 4n -width "1."
	.It
	fail completely (but perhaps temporarily,
	e.g. due to a top-level vdev going offline), or
	.It
	have localized, permanent errors (e.g. disk returns the wrong data
	due to bit flip or firmware bug).
	.El
	In the former case, this setting does not matter because the
	pool will be suspended and the sync thread will not be able to make
	forward progress regardless.
	In the latter, because the error is permanent, the best we can do
	is leak the minimum amount of space,
	which is what setting this flag will do.
	It is therefore reasonable for this flag to normally be set,
	but we chose the more conservative approach of not setting it,
	so that there is no possibility of
	leaking space in the "partial temporary" failure case.
	.
	.It Sy zfs_free_min_time_ms Ns = Ns Sy 1000 Ns ms Po 1s Pc Pq int
	During a
	.Nm zfs Cm destroy
	operation using the
	.Sy async_destroy
	feature,
	a minimum of this much time will be spent working on freeing blocks per TXG.
	.
	.It Sy zfs_obsolete_min_time_ms Ns = Ns Sy 500 Ns ms Pq int
	Similar to
	.Sy zfs_free_min_time_ms ,
	but for cleanup of old indirection records for removed vdevs.
	.
	.It Sy zfs_immediate_write_sz Ns = Ns Sy 32768 Ns B Po 32kB Pc Pq long
	Largest data block to write to the ZIL.
	Larger blocks will be treated as if the dataset being written to had the
	.Sy logbias Ns = Ns Sy throughput
	property set.
	.
	.It Sy zfs_initialize_value Ns = Ns Sy 16045690984833335022 Po 0xDEADBEEFDEADBEEE Pc Pq ulong
	Pattern written to vdev free space by
	.Xr zpool-initialize 8 .
	.
	.It Sy zfs_initialize_chunk_size Ns = Ns Sy 1048576 Ns B Po 1MB Pc Pq ulong
	Size of writes used by
	.Xr zpool-initialize 8 .
	This option is used by the test suite.
	.
	.It Sy zfs_livelist_max_entries Ns = Ns Sy 500000 Po 5*10^5 Pc Pq ulong
	The threshold size (in block pointers) at which we create a new sub-livelist.
	Larger sublists are more costly from a memory perspective but the fewer
	sublists there are, the lower the cost of insertion.
	.
	.It Sy zfs_livelist_min_percent_shared Ns = Ns Sy 75 Ns % Pq int
	If the amount of shared space between a snapshot and its clone drops below
	this threshold, the clone turns off the livelist and reverts to the old
	deletion method.
	This is in place because livelists no long give us a benefit
	once a clone has been overwritten enough.
	.
	.It Sy zfs_livelist_condense_new_alloc Ns = Ns Sy 0 Pq int
	Incremented each time an extra ALLOC blkptr is added to a livelist entry while
	it is being condensed.
	This option is used by the test suite to track race conditions.
	.
	.It Sy zfs_livelist_condense_sync_cancel Ns = Ns Sy 0 Pq int
	Incremented each time livelist condensing is canceled while in
	.Fn spa_livelist_condense_sync .
	This option is used by the test suite to track race conditions.
	.
	.It Sy zfs_livelist_condense_sync_pause Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	When set, the livelist condense process pauses indefinitely before
	executing the synctask -
	.Fn spa_livelist_condense_sync .
	This option is used by the test suite to trigger race conditions.
	.
	.It Sy zfs_livelist_condense_zthr_cancel Ns = Ns Sy 0 Pq int
	Incremented each time livelist condensing is canceled while in
	.Fn spa_livelist_condense_cb .
	This option is used by the test suite to track race conditions.
	.
	.It Sy zfs_livelist_condense_zthr_pause Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	When set, the livelist condense process pauses indefinitely before
	executing the open context condensing work in
	.Fn spa_livelist_condense_cb .
	This option is used by the test suite to trigger race conditions.
	.
	.It Sy zfs_lua_max_instrlimit Ns = Ns Sy 100000000 Po 10^8 Pc Pq ulong
	The maximum execution time limit that can be set for a ZFS channel program,
	specified as a number of Lua instructions.
	.
	.It Sy zfs_lua_max_memlimit Ns = Ns Sy 104857600 Po 100MB Pc Pq ulong
	The maximum memory limit that can be set for a ZFS channel program, specified
	in bytes.
	.
	.It Sy zfs_max_dataset_nesting Ns = Ns Sy 50 Pq int
	The maximum depth of nested datasets.
	This value can be tuned temporarily to
	fix existing datasets that exceed the predefined limit.
	.
	.It Sy zfs_max_log_walking Ns = Ns Sy 5 Pq ulong
	The number of past TXGs that the flushing algorithm of the log spacemap
	feature uses to estimate incoming log blocks.
	.
	.It Sy zfs_max_logsm_summary_length Ns = Ns Sy 10 Pq ulong
	Maximum number of rows allowed in the summary of the spacemap log.
	.
	.It Sy zfs_max_recordsize Ns = Ns Sy 1048576 Po 1MB Pc Pq int
	We currently support block sizes from
	.Em 512B No to Em 16MB .
	The benefits of larger blocks, and thus larger I/O,
	need to be weighed against the cost of COWing a giant block to modify one byte.
	Additionally, very large blocks can have an impact on I/O latency,
	and also potentially on the memory allocator.
	Therefore, we do not allow the recordsize to be set larger than this tunable.
	Larger blocks can be created by changing it,
	and pools with larger blocks can always be imported and used,
	regardless of this setting.
	.
	.It Sy zfs_allow_redacted_dataset_mount Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Allow datasets received with redacted send/receive to be mounted.
	Normally disabled because these datasets may be missing key data.
	.
	.It Sy zfs_min_metaslabs_to_flush Ns = Ns Sy 1 Pq ulong
	Minimum number of metaslabs to flush per dirty TXG.
	.
	.It Sy zfs_metaslab_fragmentation_threshold Ns = Ns Sy 70 Ns % Pq int
	Allow metaslabs to keep their active state as long as their fragmentation
	percentage is no more than this value.
	An active metaslab that exceeds this threshold
	will no longer keep its active status allowing better metaslabs to be selected.
	.
	.It Sy zfs_mg_fragmentation_threshold Ns = Ns Sy 95 Ns % Pq int
	Metaslab groups are considered eligible for allocations if their
	fragmentation metric (measured as a percentage) is less than or equal to
	this value.
	If a metaslab group exceeds this threshold then it will be
	skipped unless all metaslab groups within the metaslab class have also
	crossed this threshold.
	.
	.It Sy zfs_mg_noalloc_threshold Ns = Ns Sy 0 Ns % Pq int
	Defines a threshold at which metaslab groups should be eligible for allocations.
	The value is expressed as a percentage of free space
	beyond which a metaslab group is always eligible for allocations.
	If a metaslab group's free space is less than or equal to the
	threshold, the allocator will avoid allocating to that group
	unless all groups in the pool have reached the threshold.
	Once all groups have reached the threshold, all groups are allowed to accept
	allocations.
	The default value of
	.Sy 0
	disables the feature and causes all metaslab groups to be eligible for allocations.
	.Pp
	This parameter allows one to deal with pools having heavily imbalanced
	vdevs such as would be the case when a new vdev has been added.
	Setting the threshold to a non-zero percentage will stop allocations
	from being made to vdevs that aren't filled to the specified percentage
	and allow lesser filled vdevs to acquire more allocations than they
	otherwise would under the old
	.Sy zfs_mg_alloc_failures
	facility.
	.
	.It Sy zfs_ddt_data_is_special Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	If enabled, ZFS will place DDT data into the special allocation class.
	.
	.It Sy zfs_user_indirect_is_special Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	If enabled, ZFS will place user data indirect blocks
	into the special allocation class.
	.
	.It Sy zfs_multihost_history Ns = Ns Sy 0 Pq int
	Historical statistics for this many latest multihost updates will be available in
	.Pa /proc/spl/kstat/zfs/ Ns Ao Ar pool Ac Ns Pa /multihost .
	.
	.It Sy zfs_multihost_interval Ns = Ns Sy 1000 Ns ms Po 1s Pc Pq ulong
	Used to control the frequency of multihost writes which are performed when the
	.Sy multihost
	pool property is on.
	This is one of the factors used to determine the
	length of the activity check during import.
	.Pp
	The multihost write period is
	.Sy zfs_multihost_interval / leaf-vdevs .
	On average a multihost write will be issued for each leaf vdev
	every
	.Sy zfs_multihost_interval
	milliseconds.
	In practice, the observed period can vary with the I/O load
	and this observed value is the delay which is stored in the uberblock.
	.
	.It Sy zfs_multihost_import_intervals Ns = Ns Sy 20 Pq uint
	Used to control the duration of the activity test on import.
	Smaller values of
	.Sy zfs_multihost_import_intervals
	will reduce the import time but increase
	the risk of failing to detect an active pool.
	The total activity check time is never allowed to drop below one second.
	.Pp
	On import the activity check waits a minimum amount of time determined by
	.Sy zfs_multihost_interval * zfs_multihost_import_intervals ,
	or the same product computed on the host which last had the pool imported,
	whichever is greater.
	The activity check time may be further extended if the value of MMP
	delay found in the best uberblock indicates actual multihost updates happened
	at longer intervals than
	.Sy zfs_multihost_interval .
	A minimum of
	.Em 100ms
	is enforced.
	.Pp
	.Sy 0 No is equivalent to Sy 1 .
	.
	.It Sy zfs_multihost_fail_intervals Ns = Ns Sy 10 Pq uint
	Controls the behavior of the pool when multihost write failures or delays are
	detected.
	.Pp
	When
	.Sy 0 ,
	multihost write failures or delays are ignored.
	The failures will still be reported to the ZED which depending on
	its configuration may take action such as suspending the pool or offlining a
	device.
	.Pp
	Otherwise, the pool will be suspended if
	.Sy zfs_multihost_fail_intervals * zfs_multihost_interval
	milliseconds pass without a successful MMP write.
	This guarantees the activity test will see MMP writes if the pool is imported.
	.Sy 1 No is equivalent to Sy 2 ;
	this is necessary to prevent the pool from being suspended
	due to normal, small I/O latency variations.
	.
	.It Sy zfs_no_scrub_io Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Set to disable scrub I/O.
	This results in scrubs not actually scrubbing data and
	simply doing a metadata crawl of the pool instead.
	.
	.It Sy zfs_no_scrub_prefetch Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Set to disable block prefetching for scrubs.
	.
	.It Sy zfs_nocacheflush Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Disable cache flush operations on disks when writing.
	Setting this will cause pool corruption on power loss
	if a volatile out-of-order write cache is enabled.
	.
	.It Sy zfs_nopwrite_enabled Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Allow no-operation writes.
	The occurrence of nopwrites will further depend on other pool properties
	.Pq i.a. the checksumming and compression algorithms .
	.
	.It Sy zfs_dmu_offset_next_sync Ns = Ns Sy 0 Ns \| ns 1 Pq int
	Enable forcing TXG sync to find holes.
	When enabled forces ZFS to act like prior versions when
	.Sy SEEK_HOLE No or Sy SEEK_DATA
	flags are used, which, when a dnode is dirty,
	causes TXGs to be synced so that this data can be found.
	.
	.It Sy zfs_pd_bytes_max Ns = Ns Sy 52428800 Ns B Po 50MB Pc Pq int
	The number of bytes which should be prefetched during a pool traversal, like
	.Nm zfs Cm send
	or other data crawling operations.
	.
	.It Sy zfs_traverse_indirect_prefetch_limit Ns = Ns Sy 32 Pq int
	The number of blocks pointed by indirect (non-L0) block which should be
	prefetched during a pool traversal, like
	.Nm zfs Cm send
	or other data crawling operations.
	.
	.It Sy zfs_per_txg_dirty_frees_percent Ns = Ns Sy 5 Ns % Pq ulong
	Control percentage of dirtied indirect blocks from frees allowed into one TXG.
	After this threshold is crossed, additional frees will wait until the next TXG.
	.Sy 0 No disables this throttle.
	.
	.It Sy zfs_prefetch_disable Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Disable predictive prefetch.
	Note that it leaves "prescient" prefetch (for. e.g.\&
	.Nm zfs Cm send )
	intact.
	Unlike predictive prefetch, prescient prefetch never issues I/O
	that ends up not being needed, so it can't hurt performance.
	.
	.It Sy zfs_qat_checksum_disable Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Disable QAT hardware acceleration for SHA256 checksums.
	May be unset after the ZFS modules have been loaded to initialize the QAT
	hardware as long as support is compiled in and the QAT driver is present.
	.
	.It Sy zfs_qat_compress_disable Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Disable QAT hardware acceleration for gzip compression.
	May be unset after the ZFS modules have been loaded to initialize the QAT
	hardware as long as support is compiled in and the QAT driver is present.
	.
	.It Sy zfs_qat_encrypt_disable Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Disable QAT hardware acceleration for AES-GCM encryption.
	May be unset after the ZFS modules have been loaded to initialize the QAT
	hardware as long as support is compiled in and the QAT driver is present.
	.
	.It Sy zfs_vnops_read_chunk_size Ns = Ns Sy 1048576 Ns B Po 1MB Pc Pq long
	Bytes to read per chunk.
	.
	.It Sy zfs_read_history Ns = Ns Sy 0 Pq int
	Historical statistics for this many latest reads will be available in
	.Pa /proc/spl/kstat/zfs/ Ns Ao Ar pool Ac Ns Pa /reads .
	.
	.It Sy zfs_read_history_hits Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Include cache hits in read history
	.
	.It Sy zfs_rebuild_max_segment Ns = Ns Sy 1048576 Ns B Po 1MB Pc Pq ulong
	Maximum read segment size to issue when sequentially resilvering a
	top-level vdev.
	.
	.It Sy zfs_rebuild_scrub_enabled Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Automatically start a pool scrub when the last active sequential resilver
	completes in order to verify the checksums of all blocks which have been
	resilvered.
	This is enabled by default and strongly recommended.
	.
	.It Sy zfs_rebuild_vdev_limit Ns = Ns Sy 33554432 Ns B Po 32MB Pc Pq ulong
	Maximum amount of I/O that can be concurrently issued for a sequential
	resilver per leaf device, given in bytes.
	.
	.It Sy zfs_reconstruct_indirect_combinations_max Ns = Ns Sy 4096 Pq int
	If an indirect split block contains more than this many possible unique
	combinations when being reconstructed, consider it too computationally
	expensive to check them all.
	Instead, try at most this many randomly selected
	combinations each time the block is accessed.
	This allows all segment copies to participate fairly
	in the reconstruction when all combinations
	cannot be checked and prevents repeated use of one bad copy.
	.
	.It Sy zfs_recover Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Set to attempt to recover from fatal errors.
	This should only be used as a last resort,
	as it typically results in leaked space, or worse.
	.
	.It Sy zfs_removal_ignore_errors Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Ignore hard IO errors during device removal.
	When set, if a device encounters a hard IO error during the removal process
	the removal will not be cancelled.
	This can result in a normally recoverable block becoming permanently damaged
	and is hence not recommended.
	This should only be used as a last resort when the
	pool cannot be returned to a healthy state prior to removing the device.
	.
	.It Sy zfs_removal_suspend_progress Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	This is used by the test suite so that it can ensure that certain actions
	happen while in the middle of a removal.
	.
	.It Sy zfs_remove_max_segment Ns = Ns Sy 16777216 Ns B Po 16MB Pc Pq int
	The largest contiguous segment that we will attempt to allocate when removing
	a device.
	If there is a performance problem with attempting to allocate large blocks,
	consider decreasing this.
	The default value is also the maximum.
	.
	.It Sy zfs_resilver_disable_defer Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Ignore the
	.Sy resilver_defer
	feature, causing an operation that would start a resilver to
	immediately restart the one in progress.
	.
	.It Sy zfs_resilver_min_time_ms Ns = Ns Sy 3000 Ns ms Po 3s Pc Pq int
	Resilvers are processed by the sync thread.
	While resilvering, it will spend at least this much time
	working on a resilver between TXG flushes.
	.
	.It Sy zfs_scan_ignore_errors Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	If set, remove the DTL (dirty time list) upon completion of a pool scan (scrub),
	even if there were unrepairable errors.
	Intended to be used during pool repair or recovery to
	stop resilvering when the pool is next imported.
	.
	.It Sy zfs_scrub_min_time_ms Ns = Ns Sy 1000 Ns ms Po 1s Pc Pq int
	Scrubs are processed by the sync thread.
	While scrubbing, it will spend at least this much time
	working on a scrub between TXG flushes.
	.
	.It Sy zfs_scan_checkpoint_intval Ns = Ns Sy 7200 Ns s Po 2h Pc Pq int
	To preserve progress across reboots, the sequential scan algorithm periodically
	needs to stop metadata scanning and issue all the verification I/O to disk.
	The frequency of this flushing is determined by this tunable.
	.
	.It Sy zfs_scan_fill_weight Ns = Ns Sy 3 Pq int
	This tunable affects how scrub and resilver I/O segments are ordered.
	A higher number indicates that we care more about how filled in a segment is,
	while a lower number indicates we care more about the size of the extent without
	considering the gaps within a segment.
	This value is only tunable upon module insertion.
	Changing the value afterwards will have no affect on scrub or resilver performance.
	.
	.It Sy zfs_scan_issue_strategy Ns = Ns Sy 0 Pq int
	Determines the order that data will be verified while scrubbing or resilvering:
	.Bl -tag -compact -offset 4n -width "a"
	.It Sy 1
	Data will be verified as sequentially as possible, given the
	amount of memory reserved for scrubbing
	.Pq see Sy zfs_scan_mem_lim_fact .
	This may improve scrub performance if the pool's data is very fragmented.
	.It Sy 2
	The largest mostly-contiguous chunk of found data will be verified first.
	By deferring scrubbing of small segments, we may later find adjacent data
	to coalesce and increase the segment size.
	.It Sy 0
	.No Use strategy Sy 1 No during normal verification
	.No and strategy Sy 2 No while taking a checkpoint.
	.El
	.
	.It Sy zfs_scan_legacy Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	If unset, indicates that scrubs and resilvers will gather metadata in
	memory before issuing sequential I/O.
	Otherwise indicates that the legacy algorithm will be used,
	where I/O is initiated as soon as it is discovered.
	Unsetting will not affect scrubs or resilvers that are already in progress.
	.
	.It Sy zfs_scan_max_ext_gap Ns = Ns Sy 2097152 Ns B Po 2MB Pc Pq int
	Sets the largest gap in bytes between scrub/resilver I/O operations
	that will still be considered sequential for sorting purposes.
	Changing this value will not
	affect scrubs or resilvers that are already in progress.
	.
	.It Sy zfs_scan_mem_lim_fact Ns = Ns Sy 20 Ns ^-1 Pq int
	Maximum fraction of RAM used for I/O sorting by sequential scan algorithm.
	This tunable determines the hard limit for I/O sorting memory usage.
	When the hard limit is reached we stop scanning metadata and start issuing
	data verification I/O.
	This is done until we get below the soft limit.
	.
	.It Sy zfs_scan_mem_lim_soft_fact Ns = Ns Sy 20 Ns ^-1 Pq int
	The fraction of the hard limit used to determined the soft limit for I/O sorting
	by the sequential scan algorithm.
	When we cross this limit from below no action is taken.
	When we cross this limit from above it is because we are issuing verification I/O.
	In this case (unless the metadata scan is done) we stop issuing verification I/O
	and start scanning metadata again until we get to the hard limit.
	.
	.It Sy zfs_scan_strict_mem_lim Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Enforce tight memory limits on pool scans when a sequential scan is in progress.
	When disabled, the memory limit may be exceeded by fast disks.
	.
	.It Sy zfs_scan_suspend_progress Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Freezes a scrub/resilver in progress without actually pausing it.
	Intended for testing/debugging.
	.
	.It Sy zfs_scan_vdev_limit Ns = Ns Sy 4194304 Ns B Po 4MB Pc Pq int
	Maximum amount of data that can be concurrently issued at once for scrubs and
	resilvers per leaf device, given in bytes.
	.
	.It Sy zfs_send_corrupt_data Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Allow sending of corrupt data (ignore read/checksum errors when sending).
	.
	.It Sy zfs_send_unmodified_spill_blocks Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Include unmodified spill blocks in the send stream.
	Under certain circumstances, previous versions of ZFS could incorrectly
	remove the spill block from an existing object.
	Including unmodified copies of the spill blocks creates a backwards-compatible
	stream which will recreate a spill block if it was incorrectly removed.
	.
	.It Sy zfs_send_no_prefetch_queue_ff Ns = Ns Sy 20 Ns ^-1 Pq int
	The fill fraction of the
	.Nm zfs Cm send
	internal queues.
	The fill fraction controls the timing with which internal threads are woken up.
	.
	.It Sy zfs_send_no_prefetch_queue_length Ns = Ns Sy 1048576 Ns B Po 1MB Pc Pq int
	The maximum number of bytes allowed in
	.Nm zfs Cm send Ns 's
	internal queues.
	.
	.It Sy zfs_send_queue_ff Ns = Ns Sy 20 Ns ^-1 Pq int
	The fill fraction of the
	.Nm zfs Cm send
	prefetch queue.
	The fill fraction controls the timing with which internal threads are woken up.
	.
	.It Sy zfs_send_queue_length Ns = Ns Sy 16777216 Ns B Po 16MB Pc Pq int
	The maximum number of bytes allowed that will be prefetched by
	.Nm zfs Cm send .
	This value must be at least twice the maximum block size in use.
	.
	.It Sy zfs_recv_queue_ff Ns = Ns Sy 20 Ns ^-1 Pq int
	The fill fraction of the
	.Nm zfs Cm receive
	queue.
	The fill fraction controls the timing with which internal threads are woken up.
	.
	.It Sy zfs_recv_queue_length Ns = Ns Sy 16777216 Ns B Po 16MB Pc Pq int
	The maximum number of bytes allowed in the
	.Nm zfs Cm receive
	queue.
	This value must be at least twice the maximum block size in use.
	.
	.It Sy zfs_recv_write_batch_size Ns = Ns Sy 1048576 Ns B Po 1MB Pc Pq int
	The maximum amount of data, in bytes, that
	.Nm zfs Cm receive
	will write in one DMU transaction.
	This is the uncompressed size, even when receiving a compressed send stream.
	This setting will not reduce the write size below a single block.
	Capped at a maximum of
	.Sy 32MB .
	.
	.It Sy zfs_override_estimate_recordsize Ns = Ns Sy 0 Ns \| Ns 1 Pq ulong
	Setting this variable overrides the default logic for estimating block
	sizes when doing a
	.Nm zfs Cm send .
	The default heuristic is that the average block size
	will be the current recordsize.
	Override this value if most data in your dataset is not of that size
	and you require accurate zfs send size estimates.
	.
	.It Sy zfs_sync_pass_deferred_free Ns = Ns Sy 2 Pq int
	Flushing of data to disk is done in passes.
	Defer frees starting in this pass.
	.
	.It Sy zfs_spa_discard_memory_limit Ns = Ns Sy 16777216 Ns B Po 16MB Pc Pq int
	Maximum memory used for prefetching a checkpoint's space map on each
	vdev while discarding the checkpoint.
	.
	.It Sy zfs_special_class_metadata_reserve_pct Ns = Ns Sy 25 Ns % Pq int
	Only allow small data blocks to be allocated on the special and dedup vdev
	types when the available free space percentage on these vdevs exceeds this value.
	This ensures reserved space is available for pool metadata as the
	special vdevs approach capacity.
	.
	.It Sy zfs_sync_pass_dont_compress Ns = Ns Sy 8 Pq int
	Starting in this sync pass, disable compression (including of metadata).
	With the default setting, in practice, we don't have this many sync passes,
	so this has no effect.
	.Pp
	The original intent was that disabling compression would help the sync passes
	to converge.
	However, in practice, disabling compression increases
	the average number of sync passes; because when we turn compression off,
	many blocks' size will change, and thus we have to re-allocate
	(not overwrite) them.
	It also increases the number of
	.Em 128kB
	allocations (e.g. for indirect blocks and spacemaps)
	because these will not be compressed.
	The
	.Em 128kB
	allocations are especially detrimental to performance
	on highly fragmented systems, which may have very few free segments of this size,
	and may need to load new metaslabs to satisfy these allocations.
	.
	.It Sy zfs_sync_pass_rewrite Ns = Ns Sy 2 Pq int
	Rewrite new block pointers starting in this pass.
	.
	.It Sy zfs_sync_taskq_batch_pct Ns = Ns Sy 75 Ns % Pq int
	This controls the number of threads used by
	.Sy dp_sync_taskq .
	The default value of
	.Sy 75%
	will create a maximum of one thread per CPU.
	.
	.It Sy zfs_trim_extent_bytes_max Ns = Ns Sy 134217728 Ns B Po 128MB Pc Pq uint
	Maximum size of TRIM command.
	Larger ranges will be split into chunks no larger than this value before issuing.
	.
	.It Sy zfs_trim_extent_bytes_min Ns = Ns Sy 32768 Ns B Po 32kB Pc Pq uint
	Minimum size of TRIM commands.
	TRIM ranges smaller than this will be skipped,
	unless they're part of a larger range which was chunked.
	This is done because it's common for these small TRIMs
	to negatively impact overall performance.
	.
	.It Sy zfs_trim_metaslab_skip Ns = Ns Sy 0 Ns \| Ns 1 Pq uint
	Skip uninitialized metaslabs during the TRIM process.
	This option is useful for pools constructed from large thinly-provisioned devices
	where TRIM operations are slow.
	As a pool ages, an increasing fraction of the pool's metaslabs
	will be initialized, progressively degrading the usefulness of this option.
	This setting is stored when starting a manual TRIM and will
	persist for the duration of the requested TRIM.
	.
	.It Sy zfs_trim_queue_limit Ns = Ns Sy 10 Pq uint
	Maximum number of queued TRIMs outstanding per leaf vdev.
	The number of concurrent TRIM commands issued to the device is controlled by
	.Sy zfs_vdev_trim_min_active No and Sy zfs_vdev_trim_max_active .
	.
	.It Sy zfs_trim_txg_batch Ns = Ns Sy 32 Pq uint
	The number of transaction groups' worth of frees which should be aggregated
	before TRIM operations are issued to the device.
	This setting represents a trade-off between issuing larger,
	more efficient TRIM operations and the delay
	before the recently trimmed space is available for use by the device.
	.Pp
	Increasing this value will allow frees to be aggregated for a longer time.
	This will result is larger TRIM operations and potentially increased memory usage.
	Decreasing this value will have the opposite effect.
	The default of
	.Sy 32
	was determined to be a reasonable compromise.
	.
	.It Sy zfs_txg_history Ns = Ns Sy 0 Pq int
	Historical statistics for this many latest TXGs will be available in
	.Pa /proc/spl/kstat/zfs/ Ns Ao Ar pool Ac Ns Pa /TXGs .
	.
	.It Sy zfs_txg_timeout Ns = Ns Sy 5 Ns s Pq int
	Flush dirty data to disk at least every this many seconds (maximum TXG duration).
	.
	.It Sy zfs_vdev_aggregate_trim Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Allow TRIM I/Os to be aggregated.
	This is normally not helpful because the extents to be trimmed
	will have been already been aggregated by the metaslab.
	This option is provided for debugging and performance analysis.
	.
	.It Sy zfs_vdev_aggregation_limit Ns = Ns Sy 1048576 Ns B Po 1MB Pc Pq int
	Max vdev I/O aggregation size.
	.
	.It Sy zfs_vdev_aggregation_limit_non_rotating Ns = Ns Sy 131072 Ns B Po 128kB Pc Pq int
	Max vdev I/O aggregation size for non-rotating media.
	.
	.It Sy zfs_vdev_cache_bshift Ns = Ns Sy 16 Po 64kB Pc Pq int
	Shift size to inflate reads to.
	.
	.It Sy zfs_vdev_cache_max Ns = Ns Sy 16384 Ns B Po 16kB Pc Pq int
	Inflate reads smaller than this value to meet the
	.Sy zfs_vdev_cache_bshift
	size
	.Pq default Sy 64kB .
	.
	.It Sy zfs_vdev_cache_size Ns = Ns Sy 0 Pq int
	Total size of the per-disk cache in bytes.
	.Pp
	Currently this feature is disabled, as it has been found to not be helpful
	for performance and in some cases harmful.
	.
	.It Sy zfs_vdev_mirror_rotating_inc Ns = Ns Sy 0 Pq int
	A number by which the balancing algorithm increments the load calculation for
	the purpose of selecting the least busy mirror member when an I/O operation
	immediately follows its predecessor on rotational vdevs
	for the purpose of making decisions based on load.
	.
	.It Sy zfs_vdev_mirror_rotating_seek_inc Ns = Ns Sy 5 Pq int
	A number by which the balancing algorithm increments the load calculation for
	the purpose of selecting the least busy mirror member when an I/O operation
	lacks locality as defined by
	.Sy zfs_vdev_mirror_rotating_seek_offset .
	Operations within this that are not immediately following the previous operation
	are incremented by half.
	.
	.It Sy zfs_vdev_mirror_rotating_seek_offset Ns = Ns Sy 1048576 Ns B Po 1MB Pc Pq int
	The maximum distance for the last queued I/O operation in which
	the balancing algorithm considers an operation to have locality.
	.No See Sx ZFS I/O SCHEDULER .
	.
	.It Sy zfs_vdev_mirror_non_rotating_inc Ns = Ns Sy 0 Pq int
	A number by which the balancing algorithm increments the load calculation for
	the purpose of selecting the least busy mirror member on non-rotational vdevs
	when I/O operations do not immediately follow one another.
	.
	.It Sy zfs_vdev_mirror_non_rotating_seek_inc Ns = Ns Sy 1 Pq int
	A number by which the balancing algorithm increments the load calculation for
	the purpose of selecting the least busy mirror member when an I/O operation lacks
	locality as defined by the
	.Sy zfs_vdev_mirror_rotating_seek_offset .
	Operations within this that are not immediately following the previous operation
	are incremented by half.
	.
	.It Sy zfs_vdev_read_gap_limit Ns = Ns Sy 32768 Ns B Po 32kB Pc Pq int
	Aggregate read I/O operations if the on-disk gap between them is within this
	threshold.
	.
	.It Sy zfs_vdev_write_gap_limit Ns = Ns Sy 4096 Ns B Po 4kB Pc Pq int
	Aggregate write I/O operations if the on-disk gap between them is within this
	threshold.
	.
	.It Sy zfs_vdev_raidz_impl Ns = Ns Sy fastest Pq string
	Select the raidz parity implementation to use.
	.Pp
	Variants that don't depend on CPU-specific features
	may be selected on module load, as they are supported on all systems.
	The remaining options may only be set after the module is loaded,
	as they are available only if the implementations are compiled in
	and supported on the running system.
	.Pp
	Once the module is loaded,
	.Pa /sys/module/zfs/parameters/zfs_vdev_raidz_impl
	will show the available options,
	with the currently selected one enclosed in square brackets.
	.Pp
	.TS
	lb l l .
	fastest selected by built-in benchmark
	original original implementation
	scalar scalar implementation
	sse2 SSE2 instruction set 64-bit x86
	ssse3 SSSE3 instruction set 64-bit x86
	avx2 AVX2 instruction set 64-bit x86
	avx512f AVX512F instruction set 64-bit x86
	avx512bw AVX512F & AVX512BW instruction sets 64-bit x86
	aarch64_neon NEON Aarch64/64-bit ARMv8
	aarch64_neonx2 NEON with more unrolling Aarch64/64-bit ARMv8
	powerpc_altivec Altivec PowerPC
	.TE
	.
	.It Sy zfs_vdev_scheduler Pq charp
	.Sy DEPRECATED .
	Prints warning to kernel log for compatiblity.
	.
	.It Sy zfs_zevent_len_max Ns = Ns Sy 512 Pq int
	Max event queue length.
	Events in the queue can be viewed with
	.Xr zpool-events 8 .
	.
	.It Sy zfs_zevent_retain_max Ns = Ns Sy 2000 Pq int
	Maximum recent zevent records to retain for duplicate checking.
	Setting this to
	.Sy 0
	disables duplicate detection.
	.
	.It Sy zfs_zevent_retain_expire_secs Ns = Ns Sy 900 Ns s Po 15min Pc Pq int
	Lifespan for a recent ereport that was retained for duplicate checking.
	.
	.It Sy zfs_zil_clean_taskq_maxalloc Ns = Ns Sy 1048576 Pq int
	The maximum number of taskq entries that are allowed to be cached.
	When this limit is exceeded transaction records (itxs)
	will be cleaned synchronously.
	.
	.It Sy zfs_zil_clean_taskq_minalloc Ns = Ns Sy 1024 Pq int
	The number of taskq entries that are pre-populated when the taskq is first
	created and are immediately available for use.
	.
	.It Sy zfs_zil_clean_taskq_nthr_pct Ns = Ns Sy 100 Ns % Pq int
	This controls the number of threads used by
	.Sy dp_zil_clean_taskq .
	The default value of
	.Sy 100%
	will create a maximum of one thread per cpu.
	.
	.It Sy zil_maxblocksize Ns = Ns Sy 131072 Ns B Po 128kB Pc Pq int
	This sets the maximum block size used by the ZIL.
	On very fragmented pools, lowering this
	.Pq typically to Sy 36kB
	can improve performance.
	.
	.It Sy zil_nocacheflush Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Disable the cache flush commands that are normally sent to disk by
	the ZIL after an LWB write has completed.
	Setting this will cause ZIL corruption on power loss
	if a volatile out-of-order write cache is enabled.
	.
	.It Sy zil_replay_disable Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Disable intent logging replay.
	Can be disabled for recovery from corrupted ZIL.
	.
	.It Sy zil_slog_bulk Ns = Ns Sy 786432 Ns B Po 768kB Pc Pq ulong
	Limit SLOG write size per commit executed with synchronous priority.
	Any writes above that will be executed with lower (asynchronous) priority
	to limit potential SLOG device abuse by single active ZIL writer.
	.
	.It Sy zfs_embedded_slog_min_ms Ns = Ns Sy 64 Pq int
	Usually, one metaslab from each normal-class vdev is dedicated for use by
	the ZIL to log synchronous writes.
	However, if there are fewer than
	.Sy zfs_embedded_slog_min_ms
	metaslabs in the vdev, this functionality is disabled.
	This ensures that we don't set aside an unreasonable amount of space for the ZIL.
	.
	.It Sy zio_deadman_log_all Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	If non-zero, the zio deadman will produce debugging messages
	.Pq see Sy zfs_dbgmsg_enable
	for all zios, rather than only for leaf zios possessing a vdev.
	This is meant to be used by developers to gain
	diagnostic information for hang conditions which don't involve a mutex
	or other locking primitive: typically conditions in which a thread in
	the zio pipeline is looping indefinitely.
	.
	.It Sy zio_slow_io_ms Ns = Ns Sy 30000 Ns ms Po 30s Pc Pq int
	When an I/O operation takes more than this much time to complete,
	it's marked as slow.
	Each slow operation causes a delay zevent.
	Slow I/O counters can be seen with
	.Nm zpool Cm status Fl s .
	.
	.It Sy zio_dva_throttle_enabled Ns = Ns Sy 1 Ns \| Ns 0 Pq int
	Throttle block allocations in the I/O pipeline.
	This allows for dynamic allocation distribution when devices are imbalanced.
	When enabled, the maximum number of pending allocations per top-level vdev
	is limited by
	.Sy zfs_vdev_queue_depth_pct .
	.
	.It Sy zio_requeue_io_start_cut_in_line Ns = Ns Sy 0 Ns \| Ns 1 Pq int
	Prioritize requeued I/O.
	.
	.It Sy zio_taskq_batch_pct Ns = Ns Sy 80 Ns % Pq uint
	Percentage of online CPUs which will run a worker thread for I/O.
	These workers are responsible for I/O work such as compression and
	checksum calculations.
	Fractional number of CPUs will be rounded down.
	.Pp
	The default value of
	.Sy 80%
	was chosen to avoid using all CPUs which can result in
	latency issues and inconsistent application performance,
	especially when slower compression and/or checksumming is enabled.
	.
	.It Sy zio_taskq_batch_tpq Ns = Ns Sy 0 Pq uint
	Number of worker threads per taskq.
	Lower values improve I/O ordering and CPU utilization,
	while higher reduces lock contention.
	.Pp
	If
	.Sy 0 ,
	generate a system-dependent value close to 6 threads per taskq.
	.
	.It Sy zvol_inhibit_dev Ns = Ns Sy 0 Ns \| Ns 1 Pq uint
	Do not create zvol device nodes.
	This may slightly improve startup time on
	systems with a very large number of zvols.
	.
	.It Sy zvol_major Ns = Ns Sy 230 Pq uint
	Major number for zvol block devices.
	.
	.It Sy zvol_max_discard_blocks Ns = Ns Sy 16384 Pq ulong
	Discard (TRIM) operations done on zvols will be done in batches of this
	many blocks, where block size is determined by the
	.Sy volblocksize
	property of a zvol.
	.
	.It Sy zvol_prefetch_bytes Ns = Ns Sy 131072 Ns B Po 128kB Pc Pq uint
	When adding a zvol to the system, prefetch this many bytes
	from the start and end of the volume.
	Prefetching these regions of the volume is desirable,
	because they are likely to be accessed immediately by
	.Xr blkid 8
	or the kernel partitioner.
	.
	.It Sy zvol_request_sync Ns = Ns Sy 0 Ns \| Ns 1 Pq uint
	When processing I/O requests for a zvol, submit them synchronously.
	This effectively limits the queue depth to
	.Em 1
	for each I/O submitter.
	When unset, requests are handled asynchronously by a thread pool.
	The number of requests which can be handled concurrently is controlled by
	.Sy zvol_threads .
	.
	.It Sy zvol_threads Ns = Ns Sy 32 Pq uint
	Max number of threads which can handle zvol I/O requests concurrently.
	.
	.It Sy zvol_volmode Ns = Ns Sy 1 Pq uint
	Defines zvol block devices behaviour when
	.Sy volmode Ns = Ns Sy default :
	.Bl -tag -compact -offset 4n -width "a"
	.It Sy 1
	.No equivalent to Sy full
	.It Sy 2
	.No equivalent to Sy dev
	.It Sy 3
	.No equivalent to Sy none
	.El
	.El
	.
	.Sh ZFS I/O SCHEDULER
	ZFS issues I/O operations to leaf vdevs to satisfy and complete I/O operations.
	The scheduler determines when and in what order those operations are issued.
	The scheduler divides operations into five I/O classes,
	prioritized in the following order: sync read, sync write, async read,
	async write, and scrub/resilver.
	Each queue defines the minimum and maximum number of concurrent operations
	that may be issued to the device.
	In addition, the device has an aggregate maximum,
	.Sy zfs_vdev_max_active .
	Note that the sum of the per-queue minima must not exceed the aggregate maximum.
	If the sum of the per-queue maxima exceeds the aggregate maximum,
	then the number of active operations may reach
	.Sy zfs_vdev_max_active ,
	in which case no further operations will be issued,
	regardless of whether all per-queue minima have been met.
	.Pp
	For many physical devices, throughput increases with the number of
	concurrent operations, but latency typically suffers.
	Furthermore, physical devices typically have a limit
	at which more concurrent operations have no
	effect on throughput or can actually cause it to decrease.
	.Pp
	The scheduler selects the next operation to issue by first looking for an
	I/O class whose minimum has not been satisfied.
	Once all are satisfied and the aggregate maximum has not been hit,
	the scheduler looks for classes whose maximum has not been satisfied.
	Iteration through the I/O classes is done in the order specified above.
	No further operations are issued
	if the aggregate maximum number of concurrent operations has been hit,
	or if there are no operations queued for an I/O class that has not hit its maximum.
	Every time an I/O operation is queued or an operation completes,
	the scheduler looks for new operations to issue.
	.Pp
	In general, smaller
	.Sy max_active Ns s
	will lead to lower latency of synchronous operations.
	Larger
	.Sy max_active Ns s
	may lead to higher overall throughput, depending on underlying storage.
	.Pp
	The ratio of the queues'
	.Sy max_active Ns s
	determines the balance of performance between reads, writes, and scrubs.
	For example, increasing
	.Sy zfs_vdev_scrub_max_active
	will cause the scrub or resilver to complete more quickly,
	but reads and writes to have higher latency and lower throughput.
	.Pp
	All I/O classes have a fixed maximum number of outstanding operations,
	except for the async write class.
	Asynchronous writes represent the data that is committed to stable storage
	during the syncing stage for transaction groups.
	Transaction groups enter the syncing state periodically,
	so the number of queued async writes will quickly burst up
	and then bleed down to zero.
	Rather than servicing them as quickly as possible,
	the I/O scheduler changes the maximum number of active async write operations
	according to the amount of dirty data in the pool.
	Since both throughput and latency typically increase with the number of
	concurrent operations issued to physical devices, reducing the
	burstiness in the number of concurrent operations also stabilizes the
	response time of operations from other – and in particular synchronous – queues.
	In broad strokes, the I/O scheduler will issue more concurrent operations
	from the async write queue as there's more dirty data in the pool.
	.
	.Ss Async Writes
	The number of concurrent operations issued for the async write I/O class
	follows a piece-wise linear function defined by a few adjustable points:
	.Bd -literal
	\| o---------\| <-- \fBzfs_vdev_async_write_max_active\fP
	^ \| /^ \|
	\| \| / \| \|
	active \| / \| \|
	I/O \| / \| \|
	count \| / \| \|
	\| / \| \|
	\|-------o \| \| <-- \fBzfs_vdev_async_write_min_active\fP
	0\|_______^______\|_________\|
	0% \| \| 100% of \fBzfs_dirty_data_max\fP
	\| \|
	\| `-- \fBzfs_vdev_async_write_active_max_dirty_percent\fP
	`--------- \fBzfs_vdev_async_write_active_min_dirty_percent\fP
	.Ed
	.Pp
	Until the amount of dirty data exceeds a minimum percentage of the dirty
	data allowed in the pool, the I/O scheduler will limit the number of
	concurrent operations to the minimum.
	As that threshold is crossed, the number of concurrent operations issued
	increases linearly to the maximum at the specified maximum percentage
	of the dirty data allowed in the pool.
	.Pp
	Ideally, the amount of dirty data on a busy pool will stay in the sloped
	part of the function between
	.Sy zfs_vdev_async_write_active_min_dirty_percent
	and
	.Sy zfs_vdev_async_write_active_max_dirty_percent .
	If it exceeds the maximum percentage,
	this indicates that the rate of incoming data is
	greater than the rate that the backend storage can handle.
	In this case, we must further throttle incoming writes,
	as described in the next section.
	.
	.Sh ZFS TRANSACTION DELAY
	We delay transactions when we've determined that the backend storage
	isn't able to accommodate the rate of incoming writes.
	.Pp
	If there is already a transaction waiting, we delay relative to when
	that transaction will finish waiting.
	This way the calculated delay time
	is independent of the number of threads concurrently executing transactions.
	.Pp
	If we are the only waiter, wait relative to when the transaction started,
	rather than the current time.
	This credits the transaction for "time already served",
	e.g. reading indirect blocks.
	.Pp
	The minimum time for a transaction to take is calculated as
	.Dl min_time = min( Ns Sy zfs_delay_scale No * (dirty - min) / (max - dirty), 100ms)
	.Pp
	The delay has two degrees of freedom that can be adjusted via tunables.
	The percentage of dirty data at which we start to delay is defined by
	.Sy zfs_delay_min_dirty_percent .
	This should typically be at or above
	.Sy zfs_vdev_async_write_active_max_dirty_percent ,
	so that we only start to delay after writing at full speed
	has failed to keep up with the incoming write rate.
	The scale of the curve is defined by
	.Sy zfs_delay_scale .
	Roughly speaking, this variable determines the amount of delay at the midpoint of the curve.
	.Bd -literal
	delay
	10ms +-------------------------------------------------------------*+
	\| *\|
	9ms + *+
	\| *\|
	8ms + *+
	\| * \|
	7ms + * +
	\| * \|
	6ms + * +
	\| * \|
	5ms + * +
	\| * \|
	4ms + * +
	\| * \|
	3ms + * +
	\| * \|
	2ms + (midpoint) * +
	\| \| ** \|
	1ms + v *** +
	\| \fBzfs_delay_scale\fP ----------> ******** \|
	0 +-------------------------------------*********----------------+
	0% <- \fBzfs_dirty_data_max\fP -> 100%
	.Ed
	.Pp
	Note, that since the delay is added to the outstanding time remaining on the
	most recent transaction it's effectively the inverse of IOPS.
	Here, the midpoint of
	.Em 500us
	translates to
	.Em 2000 IOPS .
	The shape of the curve
	was chosen such that small changes in the amount of accumulated dirty data
	in the first three quarters of the curve yield relatively small differences
	in the amount of delay.
	.Pp
	The effects can be easier to understand when the amount of delay is
	represented on a logarithmic scale:
	.Bd -literal
	delay
	100ms +-------------------------------------------------------------++
	+ +
	\| \|
	+ *+
	10ms + *+
	+ ** +
	\| (midpoint) ** \|
	+ \| ** +
	1ms + v **** +
	+ \fBzfs_delay_scale\fP ----------> ***** +
	\| **** \|
	+ **** +
	100us + ** +
	+ * +
	\| * \|
	+ * +
	10us + * +
	+ +
	\| \|
	+ +
	+--------------------------------------------------------------+
	0% <- \fBzfs_dirty_data_max\fP -> 100%
	.Ed
	.Pp
	Note here that only as the amount of dirty data approaches its limit does
	the delay start to increase rapidly.
	The goal of a properly tuned system should be to keep the amount of dirty data
	out of that range by first ensuring that the appropriate limits are set
	for the I/O scheduler to reach optimal throughput on the back-end storage,
	and then by changing the value of
	.Sy zfs_delay_scale
	to increase the steepness of the curve.
	diff --git a/sys/contrib/openzfs/man/man5/Makefile.am b/sys/contrib/openzfs/man/man5/Makefile.am
	deleted file mode 100644
	index 9cbb2c08f378..000000000000
	--- a/sys/contrib/openzfs/man/man5/Makefile.am
	+++ /dev/null
	@@ -1,16 +0,0 @@
	-dist_man_MANS = \
	- vdev_id.conf.5 \
	- zpool-features.5 \
	- spl-module-parameters.5 \
	- zfs-module-parameters.5 \
	- zfs-events.5
	-
	-if BUILD_LINUX
	-# The man pager in most Linux distros defaults to BSD instead of Linux
	-# when .Os is blank, but leaving it blank makes things a lot easier on
	-# FreeBSD when OpenZFS is vendored in the base system.
	-install-data-hook:
	- cd $(DESTDIR)$(mandir)/man5; \
	- $(SED) ${ac_inplace} -e 's/^\.Os$$/.Os Linux/' \
	- $(dist_man_MANS)
	-endif
	diff --git a/sys/contrib/openzfs/man/man5/vdev_id.conf.5 b/sys/contrib/openzfs/man/man5/vdev_id.conf.5
	index 1268114bdbc6..a2d38add4ee0 100644
	--- a/sys/contrib/openzfs/man/man5/vdev_id.conf.5
	+++ b/sys/contrib/openzfs/man/man5/vdev_id.conf.5
	@@ -1,251 +1,249 @@
	.\"
	.\" This file and its contents are supplied under the terms of the
	.\" Common Development and Distribution License ("CDDL"), version 1.0.
	.\" You may only use this file in accordance with the terms of version
	.\" 1.0 of the CDDL.
	.\"
	.\" A full copy of the text of the CDDL should have accompanied this
	.\" source. A copy of the CDDL is also available via the Internet at
	.\" http://www.illumos.org/license/CDDL.
	.\"
	.Dd May 26, 2021
	.Dt VDEV_ID.CONF 5
	.Os
	.
	.Sh NAME
	.Nm vdev_id.conf
	-.Nd Configuration file for vdev_id
	+.Nd configuration file for vdev_id(8)
	.Sh DESCRIPTION
	.Nm
	is the configuration file for
	-.Nm vdev_id Ns Sy (8) .
	+.Xr vdev_id 8 .
	It controls the default behavior of
	-.Nm vdev_id Ns Sy (8)
	+.Xr vdev_id 8
	while it is mapping a disk device name to an alias.
	.Pp
	The
	.Nm
	file uses a simple format consisting of a keyword followed by one or
	more values on a single line.
	Any line not beginning with a recognized keyword is ignored.
	Comments may optionally begin with a hash character.
	.Pp
	The following keywords and values are used.
	.Bl -tag -width "-h"
	.It Sy alias Ar name Ar devlink
	Maps a device link in the
	.Pa /dev
	directory hierarchy to a new device name.
	The udev rule defining the device link must have run prior to
	-.Nm vdev_id Ns Sy (8) .
	+.Xr vdev_id 8 .
	A defined alias takes precedence over a topology-derived name, but the
	two naming methods can otherwise coexist.
	For example, one might name drives in a JBOD with the
	.Sy sas_direct
	topology while naming an internal L2ARC device with an alias.
	.Pp
	.Ar name
	is the name of the link to the device that will by created under
	.Pa /dev/disk/by-vdev .
	.Pp
	.Ar devlink
	is the name of the device link that has already been
	defined by udev.
	This may be an absolute path or the base filename.
	.
	.It Sy channel [ Ns Ar pci_slot ] Ar port Ar name
	Maps a physical path to a channel name (typically representing a single
	disk enclosure).
	.
	.It Sy enclosure_symlinks Sy yes Ns \| Ns Sy no
	Additionally create
	.Pa /dev/by-enclosure
	symlinks to the disk enclosure
	.Em sg
	devices using the naming scheme from
	.Pa vdev_id.conf .
	.Sy enclosure_symlinks
	is only allowed for
	.Sy sas_direct
	mode.
	.
	.It Sy enclosure_symlinks_prefix Ar prefix
	Specify the prefix for the enclosure symlinks in the form
	.Pa /dev/by-enclosure/ Ns Ao Ar prefix Ac Ns - Ns Ao Ar channel Ac Ns Aq Ar num
	.Pp
	Defaults to
	.Dq Em enc .
	.
	.It Sy slot Ar prefix Ar new Op Ar channel
	Maps a disk slot number as reported by the operating system to an
	alternative slot number.
	If the
	.Ar channel
	parameter is specified
	then the mapping is only applied to slots in the named channel,
	otherwise the mapping is applied to all channels.
	The first-specified
	.Ar slot
	rule that can match a slot takes precedence.
	Therefore a channel-specific mapping for a given slot should generally appear
	before a generic mapping for the same slot.
	In this way a custom mapping may be applied to a particular channel
	and a default mapping applied to the others.
	.
	.It Sy multipath Sy yes Ns \| Ns Sy no
	Specifies whether
	-.Nm vdev_id Ns Sy (8)
	+.Xr vdev_id 8
	will handle only dm-multipath devices.
	If set to
	.Sy yes
	then
	-.Nm vdev_id Ns Sy (8)
	+.Xr vdev_id 8
	will examine the first running component disk of a dm-multipath
	device as provided by the driver command to determine the physical path.
	.
	.It Sy topology Sy sas_direct Ns \| Ns Sy sas_switch Ns \| Ns Sy scsi
	Identifies a physical topology that governs how physical paths are
	mapped to channels:
	.Bl -tag -compact -width "sas_direct and scsi"
	.It Sy sas_direct No and Sy scsi
	channels are uniquely identified by a PCI slot and HBA port number
	.It Sy sas_switch
	channels are uniquely identified by a SAS switch port number
	.El
	.
	.It Sy phys_per_port Ar num
	Specifies the number of PHY devices associated with a SAS HBA port or SAS
	switch port.
	-.Nm vdev_id Ns Sy (8)
	+.Xr vdev_id 8
	internally uses this value to determine which HBA or switch port a
	device is connected to.
	The default is
	.Sy 4 .
	.
	.It Sy slot Sy bay Ns \| Ns Sy phy Ns \| Ns Sy port Ns \| Ns Sy id Ns \| Ns Sy lun Ns \| Ns Sy ses
	Specifies from which element of a SAS identifier the slot number is
	taken.
	The default is
	.Sy bay :
	.Bl -tag -compact -width "port"
	.It Sy bay
	read the slot number from the bay identifier.
	.It Sy phy
	read the slot number from the phy identifier.
	.It Sy port
	use the SAS port as the slot number.
	.It Sy id
	use the scsi id as the slot number.
	.It Sy lun
	use the scsi lun as the slot number.
	.It Sy ses
	use the SCSI Enclosure Services (SES) enclosure device slot number,
	as reported by
	.Xr sg_ses 8 .
	Intended for use only on systems where
	.Sy bay
	is unsupported,
	noting that
	.Sy port
	and
	.Sy id
	may be unstable across disk replacement.
	.El
	.El
	.
	.Sh FILES
	.Bl -tag -width "-v v"
	.It Pa /etc/zfs/vdev_id.conf
	The configuration file for
	-.Nm vdev_id Ns Sy (8) .
	+.Xr vdev_id 8 .
	.El
	.
	.Sh EXAMPLES
	A non-multipath configuration with direct-attached SAS enclosures and an
	arbitrary slot re-mapping:
	-.Bd -literal -offset Ds
	+.Bd -literal -compact -offset Ds
	multipath no
	topology sas_direct
	phys_per_port 4
	slot bay

	# PCI_SLOT HBA PORT CHANNEL NAME
	channel 85:00.0 1 A
	channel 85:00.0 0 B
	channel 86:00.0 1 C
	channel 86:00.0 0 D

	# Custom mapping for Channel A

	# Linux Mapped
	# Slot Slot Channel
	slot 1 7 A
	slot 2 10 A
	slot 3 3 A
	slot 4 6 A

	# Default mapping for B, C, and D

	slot 1 4
	slot 2 2
	slot 3 1
	slot 4 3
	.Ed
	.Pp
	A SAS-switch topology.
	Note, that the
	.Ar channel
	-keyword takes only two arguments in this example.
	-.Bd -literal -offset Ds
	+keyword takes only two arguments in this example:
	+.Bd -literal -compact -offset Ds
	topology sas_switch

	# SWITCH PORT CHANNEL NAME
	channel 1 A
	channel 2 B
	channel 3 C
	channel 4 D
	.Ed
	.Pp
	A multipath configuration.
	-Note that channel names have multiple
	-definitions - one per physical path.
	-.Bd -literal -offset Ds
	+Note that channel names have multiple definitions - one per physical path:
	+.Bd -literal -compact -offset Ds
	multipath yes

	# PCI_SLOT HBA PORT CHANNEL NAME
	channel 85:00.0 1 A
	channel 85:00.0 0 B
	channel 86:00.0 1 A
	channel 86:00.0 0 B
	.Ed
	.Pp
	-A configuration with enclosure_symlinks enabled.
	-.Bd -literal -offset Ds
	+A configuration with enclosure_symlinks enabled:
	+.Bd -literal -compact -offset Ds
	multipath yes
	enclosure_symlinks yes

	# PCI_ID HBA PORT CHANNEL NAME
	channel 05:00.0 1 U
	channel 05:00.0 0 L
	channel 06:00.0 1 U
	channel 06:00.0 0 L
	.Ed
	-.Pp
	In addition to the disks symlinks, this configuration will create:
	-.Bd -literal -offset Ds
	+.Bd -literal -compact -offset Ds
	/dev/by-enclosure/enc-L0
	/dev/by-enclosure/enc-L1
	/dev/by-enclosure/enc-U0
	/dev/by-enclosure/enc-U1
	.Ed
	.Pp
	-A configuration using device link aliases.
	-.Bd -literal -offset Ds
	+A configuration using device link aliases:
	+.Bd -literal -compact -offset Ds
	# by-vdev
	# name fully qualified or base name of device link
	alias d1 /dev/disk/by-id/wwn-0x5000c5002de3b9ca
	alias d2 wwn-0x5000c5002def789e
	.Ed
	.
	.Sh SEE ALSO
	.Xr vdev_id 8
	diff --git a/sys/contrib/openzfs/man/man5/zfs-events.5 b/sys/contrib/openzfs/man/man5/zfs-events.5
	deleted file mode 100644
	index 846a7080d01c..000000000000
	--- a/sys/contrib/openzfs/man/man5/zfs-events.5
	+++ /dev/null
	@@ -1,448 +0,0 @@
	-.\"
	-.\" Copyright (c) 2013 by Turbo Fredriksson <turbo@bayour.com>. All rights reserved.
	-.\" Portions Copyright 2018 by Richard Elling
	-.\" The contents of this file are subject to the terms of the Common Development
	-.\" and Distribution License (the "License"). You may not use this file except
	-.\" in compliance with the License. You can obtain a copy of the license at
	-.\" usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.
	-.\"
	-.\" See the License for the specific language governing permissions and
	-.\" limitations under the License. When distributing Covered Code, include this
	-.\" CDDL HEADER in each file and include the License file at
	-.\" usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this
	-.\" CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your
	-.\" own identifying information:
	-.\" Portions Copyright [yyyy] [name of copyright owner]
	-.\"
	-.Dd May 26, 2021
	-.Dt ZFS-EVENTS 5
	-.Os
	-.
	-.Sh NAME
	-.Nm zfs-events
	-.Nd Events created by the ZFS filesystem
	-.Sh DESCRIPTION
	-Description of the different events generated by the ZFS stack.
	-.Pp
	-Most of these don't have any description.
	-The events generated by ZFS have never been publicly documented.
	-What is here is intended as a starting point to provide documentation
	-for all possible events.
	-.Pp
	-To view all events created since the loading of the ZFS infrastructure
	-(i.e, "the module"), run
	-.Dl Nm zpool Cm events
	-to get a short list, and
	-.Dl Nm zpool Cm events Fl v
	-to get a full detail of the events and what information
	-is available about it.
	-.Pp
	-This manual page lists the different subclasses that are issued
	-in the case of an event.
	-The full event name would be
	-.Sy ereport.fs.zfs.\& Ns Em SUBCLASS ,
	-but we only list the last part here.
	-.
	-.Sh EVENTS (SUBCLASS)
	-.Bl -tag -compact -width "vdev.bad_guid_sum"
	-.It Sy checksum
	-Issued when a checksum error has been detected.
	-.It Sy io
	-Issued when there is an I/O error in a vdev in the pool.
	-.It Sy data
	-Issued when there have been data errors in the pool.
	-.It Sy deadman
	-Issued when an I/O request is determined to be "hung", this can be caused
	-by lost completion events due to flaky hardware or drivers.
	-See
	-.Sy zfs_deadman_failmode
	-in
	-.Xr zfs-module-parameters 5
	-for additional information regarding "hung" I/O detection and configuration.
	-.It Sy delay
	-Issued when a completed I/O request exceeds the maximum allowed time
	-specified by the
	-.Sy zio_slow_io_ms
	-module parameter.
	-This can be an indicator of problems with the underlying storage device.
	-The number of delay events is ratelimited by the
	-.Sy zfs_slow_io_events_per_second
	-module parameter.
	-.It Sy config
	-Issued every time a vdev change have been done to the pool.
	-.It Sy zpool
	-Issued when a pool cannot be imported.
	-.It Sy zpool.destroy
	-Issued when a pool is destroyed.
	-.It Sy zpool.export
	-Issued when a pool is exported.
	-.It Sy zpool.import
	-Issued when a pool is imported.
	-.It Sy zpool.reguid
	-Issued when a REGUID (new unique identifier for the pool have been regenerated) have been detected.
	-.It Sy vdev.unknown
	-Issued when the vdev is unknown.
	-Such as trying to clear device errors on a vdev that have failed/been kicked
	-from the system/pool and is no longer available.
	-.It Sy vdev.open_failed
	-Issued when a vdev could not be opened (because it didn't exist for example).
	-.It Sy vdev.corrupt_data
	-Issued when corrupt data have been detected on a vdev.
	-.It Sy vdev.no_replicas
	-Issued when there are no more replicas to sustain the pool.
	-This would lead to the pool being
	-.Em DEGRADED .
	-.It Sy vdev.bad_guid_sum
	-Issued when a missing device in the pool have been detected.
	-.It Sy vdev.too_small
	-Issued when the system (kernel) have removed a device, and ZFS
	-notices that the device isn't there any more.
	-This is usually followed by a
	-.Sy probe_failure
	-event.
	-.It Sy vdev.bad_label
	-Issued when the label is OK but invalid.
	-.It Sy vdev.bad_ashift
	-Issued when the ashift alignment requirement has increased.
	-.It Sy vdev.remove
	-Issued when a vdev is detached from a mirror (or a spare detached from a
	-vdev where it have been used to replace a failed drive - only works if
	-the original drive have been readded).
	-.It Sy vdev.clear
	-Issued when clearing device errors in a pool.
	-Such as running
	-.Nm zpool Cm clear
	-on a device in the pool.
	-.It Sy vdev.check
	-Issued when a check to see if a given vdev could be opened is started.
	-.It Sy vdev.spare
	-Issued when a spare have kicked in to replace a failed device.
	-.It Sy vdev.autoexpand
	-Issued when a vdev can be automatically expanded.
	-.It Sy io_failure
	-Issued when there is an I/O failure in a vdev in the pool.
	-.It Sy probe_failure
	-Issued when a probe fails on a vdev.
	-This would occur if a vdev
	-have been kicked from the system outside of ZFS (such as the kernel
	-have removed the device).
	-.It Sy log_replay
	-Issued when the intent log cannot be replayed.
	-The can occur in the case of a missing or damaged log device.
	-.It Sy resilver.start
	-Issued when a resilver is started.
	-.It Sy resilver.finish
	-Issued when the running resilver have finished.
	-.It Sy scrub.start
	-Issued when a scrub is started on a pool.
	-.It Sy scrub.finish
	-Issued when a pool has finished scrubbing.
	-.It Sy scrub.abort
	-Issued when a scrub is aborted on a pool.
	-.It Sy scrub.resume
	-Issued when a scrub is resumed on a pool.
	-.It Sy scrub.paused
	-Issued when a scrub is paused on a pool.
	-.It Sy bootfs.vdev.attach
	-.El
	-.
	-.Sh PAYLOADS
	-This is the payload (data, information) that accompanies an
	-event.
	-.Pp
	-For
	-.Xr zed 8 ,
	-these are set to uppercase and prefixed with
	-.Sy ZEVENT_ .
	-.Bl -tag -compact -width "vdev_cksum_errors"
	-.It Sy pool
	-Pool name.
	-.It Sy pool_failmode
	-Failmode -
	-.Sy wait ,
	-.Sy continue ,
	-or
	-.Sy panic .
	-See the
	-.Sy failmode
	-property in
	-.Xr zpoolprops 8
	-for more information.
	-.It Sy pool_guid
	-The GUID of the pool.
	-.It Sy pool_context
	-The load state for the pool (0=none, 1=open, 2=import, 3=tryimport, 4=recover
	-5=error).
	-.It Sy vdev_guid
	-The GUID of the vdev in question (the vdev failing or operated upon with
	-.Nm zpool Cm clear ,
	-etc.).
	-.It Sy vdev_type
	-Type of vdev -
	-.Sy disk ,
	-.Sy file ,
	-.Sy mirror ,
	-etc.
	-See the
	-.Sy Virtual Devices
	-section of
	-.Xr zpoolconcepts 8
	-for more information on possible values.
	-.It Sy vdev_path
	-Full path of the vdev, including any
	-.Em -partX .
	-.It Sy vdev_devid
	-ID of vdev (if any).
	-.It Sy vdev_fru
	-Physical FRU location.
	-.It Sy vdev_state
	-State of vdev (0=uninitialized, 1=closed, 2=offline, 3=removed, 4=failed to open, 5=faulted, 6=degraded, 7=healthy).
	-.It Sy vdev_ashift
	-The ashift value of the vdev.
	-.It Sy vdev_complete_ts
	-The time the last I/O request completed for the specified vdev.
	-.It Sy vdev_delta_ts
	-The time since the last I/O request completed for the specified vdev.
	-.It Sy vdev_spare_paths
	-List of spares, including full path and any
	-.Em -partX .
	-.It Sy vdev_spare_guids
	-GUID(s) of spares.
	-.It Sy vdev_read_errors
	-How many read errors that have been detected on the vdev.
	-.It Sy vdev_write_errors
	-How many write errors that have been detected on the vdev.
	-.It Sy vdev_cksum_errors
	-How many checksum errors that have been detected on the vdev.
	-.It Sy parent_guid
	-GUID of the vdev parent.
	-.It Sy parent_type
	-Type of parent.
	-See
	-.Sy vdev_type .
	-.It Sy parent_path
	-Path of the vdev parent (if any).
	-.It Sy parent_devid
	-ID of the vdev parent (if any).
	-.It Sy zio_objset
	-The object set number for a given I/O request.
	-.It Sy zio_object
	-The object number for a given I/O request.
	-.It Sy zio_level
	-The indirect level for the block.
	-Level 0 is the lowest level and includes data blocks.
	-Values > 0 indicate metadata blocks at the appropriate level.
	-.It Sy zio_blkid
	-The block ID for a given I/O request.
	-.It Sy zio_err
	-The error number for a failure when handling a given I/O request,
	-compatible with
	-.Xr errno 3
	-with the value of
	-.Sy EBADE
	-used to indicate a ZFS checksum error.
	-.It Sy zio_offset
	-The offset in bytes of where to write the I/O request for the specified vdev.
	-.It Sy zio_size
	-The size in bytes of the I/O request.
	-.It Sy zio_flags
	-The current flags describing how the I/O request should be handled.
	-See the
	-.Sy I/O FLAGS
	-section for the full list of I/O flags.
	-.It Sy zio_stage
	-The current stage of the I/O in the pipeline.
	-See the
	-.Sy I/O STAGES
	-section for a full list of all the I/O stages.
	-.It Sy zio_pipeline
	-The valid pipeline stages for the I/O.
	-See the
	-.Sy I/O STAGES
	-section for a full list of all the I/O stages.
	-.It Sy zio_delay
	-The time elapsed (in nanoseconds) waiting for the block layer to complete the
	-I/O request.
	-Unlike
	-.Sy zio_delta ,
	-this does not include any vdev queuing time and is
	-therefore solely a measure of the block layer performance.
	-.It Sy zio_timestamp
	-The time when a given I/O request was submitted.
	-.It Sy zio_delta
	-The time required to service a given I/O request.
	-.It Sy prev_state
	-The previous state of the vdev.
	-.It Sy cksum_expected
	-The expected checksum value for the block.
	-.It Sy cksum_actual
	-The actual checksum value for an errant block.
	-.It Sy cksum_algorithm
	-Checksum algorithm used.
	-See
	-.Xr zfsprops 8
	-for more information on the available checksum algorithms.
	-.It Sy cksum_byteswap
	-Whether or not the data is byteswapped.
	-.It Sy bad_ranges
	-.No [\& Ns Ar start , end )
	-pairs of corruption offsets.
	-Offsets are always aligned on a 64-bit boundary,
	-and can include some gaps of non-corruption.
	-(See
	-.Sy bad_ranges_min_gap )
	-.It Sy bad_ranges_min_gap
	-In order to bound the size of the
	-.Sy bad_ranges
	-array, gaps of non-corruption
	-less than or equal to
	-.Sy bad_ranges_min_gap
	-bytes have been merged with
	-adjacent corruption.
	-Always at least 8 bytes, since corruption is detected on a 64-bit word basis.
	-.It Sy bad_range_sets
	-This array has one element per range in
	-.Sy bad_ranges .
	-Each element contains
	-the count of bits in that range which were clear in the good data and set
	-in the bad data.
	-.It Sy bad_range_clears
	-This array has one element per range in
	-.Sy bad_ranges .
	-Each element contains
	-the count of bits for that range which were set in the good data and clear in
	-the bad data.
	-.It Sy bad_set_bits
	-If this field exists, it is an array of
	-.Pq Ar bad data No & ~( Ns Ar good data ) ;
	-that is, the bits set in the bad data which are cleared in the good data.
	-Each element corresponds a byte whose offset is in a range in
	-.Sy bad_ranges ,
	-and the array is ordered by offset.
	-Thus, the first element is the first byte in the first
	-.Sy bad_ranges
	-range, and the last element is the last byte in the last
	-.Sy bad_ranges
	-range.
	-.It Sy bad_cleared_bits
	-Like
	-.Sy bad_set_bits ,
	-but contains
	-.Pq Ar good data No & ~( Ns Ar bad data ) ;
	-that is, the bits set in the good data which are cleared in the bad data.
	-.It Sy bad_set_histogram
	-If this field exists, it is an array of counters.
	-Each entry counts bits set in a particular bit of a big-endian uint64 type.
	-The first entry counts bits
	-set in the high-order bit of the first byte, the 9th byte, etc, and the last
	-entry counts bits set of the low-order bit of the 8th byte, the 16th byte, etc.
	-This information is useful for observing a stuck bit in a parallel data path,
	-such as IDE or parallel SCSI.
	-.It Sy bad_cleared_histogram
	-If this field exists, it is an array of counters.
	-Each entry counts bit clears in a particular bit of a big-endian uint64 type.
	-The first entry counts bits
	-clears of the high-order bit of the first byte, the 9th byte, etc, and the
	-last entry counts clears of the low-order bit of the 8th byte, the 16th byte, etc.
	-This information is useful for observing a stuck bit in a parallel data
	-path, such as IDE or parallel SCSI.
	-.El
	-.
	-.Sh I/O STAGES
	-The ZFS I/O pipeline is comprised of various stages which are defined below.
	-The individual stages are used to construct these basic I/O
	-operations: Read, Write, Free, Claim, and Ioctl.
	-These stages may be
	-set on an event to describe the life cycle of a given I/O request.
	-.Pp
	-.TS
	-tab(:);
	-l l l .
	-Stage:Bit Mask:Operations
	-_:_:_
	-ZIO_STAGE_OPEN:0x00000001:RWFCI
	-
	-ZIO_STAGE_READ_BP_INIT:0x00000002:R----
	-ZIO_STAGE_WRITE_BP_INIT:0x00000004:-W---
	-ZIO_STAGE_FREE_BP_INIT:0x00000008:--F--
	-ZIO_STAGE_ISSUE_ASYNC:0x00000010:RWF--
	-ZIO_STAGE_WRITE_COMPRESS:0x00000020:-W---
	-
	-ZIO_STAGE_ENCRYPT:0x00000040:-W---
	-ZIO_STAGE_CHECKSUM_GENERATE:0x00000080:-W---
	-
	-ZIO_STAGE_NOP_WRITE:0x00000100:-W---
	-
	-ZIO_STAGE_DDT_READ_START:0x00000200:R----
	-ZIO_STAGE_DDT_READ_DONE:0x00000400:R----
	-ZIO_STAGE_DDT_WRITE:0x00000800:-W---
	-ZIO_STAGE_DDT_FREE:0x00001000:--F--
	-
	-ZIO_STAGE_GANG_ASSEMBLE:0x00002000:RWFC-
	-ZIO_STAGE_GANG_ISSUE:0x00004000:RWFC-
	-
	-ZIO_STAGE_DVA_THROTTLE:0x00008000:-W---
	-ZIO_STAGE_DVA_ALLOCATE:0x00010000:-W---
	-ZIO_STAGE_DVA_FREE:0x00020000:--F--
	-ZIO_STAGE_DVA_CLAIM:0x00040000:---C-
	-
	-ZIO_STAGE_READY:0x00080000:RWFCI
	-
	-ZIO_STAGE_VDEV_IO_START:0x00100000:RW--I
	-ZIO_STAGE_VDEV_IO_DONE:0x00200000:RW--I
	-ZIO_STAGE_VDEV_IO_ASSESS:0x00400000:RW--I
	-
	-ZIO_STAGE_CHECKSUM_VERIFY:0x00800000:R----
	-
	-ZIO_STAGE_DONE:0x01000000:RWFCI
	-.TE
	-.
	-.Sh I/O FLAGS
	-Every I/O request in the pipeline contains a set of flags which describe its
	-function and are used to govern its behavior.
	-These flags will be set in an event as a
	-.Sy zio_flags
	-payload entry.
	-.Pp
	-.TS
	-tab(:);
	-l l .
	-Flag:Bit Mask
	-_:_
	-ZIO_FLAG_DONT_AGGREGATE:0x00000001
	-ZIO_FLAG_IO_REPAIR:0x00000002
	-ZIO_FLAG_SELF_HEAL:0x00000004
	-ZIO_FLAG_RESILVER:0x00000008
	-ZIO_FLAG_SCRUB:0x00000010
	-ZIO_FLAG_SCAN_THREAD:0x00000020
	-ZIO_FLAG_PHYSICAL:0x00000040
	-
	-ZIO_FLAG_CANFAIL:0x00000080
	-ZIO_FLAG_SPECULATIVE:0x00000100
	-ZIO_FLAG_CONFIG_WRITER:0x00000200
	-ZIO_FLAG_DONT_RETRY:0x00000400
	-ZIO_FLAG_DONT_CACHE:0x00000800
	-ZIO_FLAG_NODATA:0x00001000
	-ZIO_FLAG_INDUCE_DAMAGE:0x00002000
	-
	-ZIO_FLAG_IO_ALLOCATING:0x00004000
	-ZIO_FLAG_IO_RETRY:0x00008000
	-ZIO_FLAG_PROBE:0x00010000
	-ZIO_FLAG_TRYHARD:0x00020000
	-ZIO_FLAG_OPTIONAL:0x00040000
	-
	-ZIO_FLAG_DONT_QUEUE:0x00080000
	-ZIO_FLAG_DONT_PROPAGATE:0x00100000
	-ZIO_FLAG_IO_BYPASS:0x00200000
	-ZIO_FLAG_IO_REWRITE:0x00400000
	-ZIO_FLAG_RAW_COMPRESS:0x00800000
	-ZIO_FLAG_RAW_ENCRYPT:0x01000000
	-
	-ZIO_FLAG_GANG_CHILD:0x02000000
	-ZIO_FLAG_DDT_CHILD:0x04000000
	-ZIO_FLAG_GODFATHER:0x08000000
	-ZIO_FLAG_NOPWRITE:0x10000000
	-ZIO_FLAG_REEXECUTED:0x20000000
	-ZIO_FLAG_DELEGATED:0x40000000
	-ZIO_FLAG_FASTWRITE:0x80000000
	-.TE
	diff --git a/sys/contrib/openzfs/man/man8/zfsconcepts.8 b/sys/contrib/openzfs/man/man7/zfsconcepts.7
	similarity index 99%
	rename from sys/contrib/openzfs/man/man8/zfsconcepts.8
	rename to sys/contrib/openzfs/man/man7/zfsconcepts.7
	index 3403d53bf8e7..f958035f72df 100644
	--- a/sys/contrib/openzfs/man/man8/zfsconcepts.8
	+++ b/sys/contrib/openzfs/man/man7/zfsconcepts.7
	@@ -1,206 +1,206 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\"
	.Dd June 30, 2019
	-.Dt ZFSCONCEPTS 8
	+.Dt ZFSCONCEPTS 7
	.Os
	.
	.Sh NAME
	.Nm zfsconcepts
	.Nd overview of ZFS concepts
	.
	.Sh DESCRIPTION
	.Ss ZFS File System Hierarchy
	A ZFS storage pool is a logical collection of devices that provide space for
	datasets.
	A storage pool is also the root of the ZFS file system hierarchy.
	.Pp
	The root of the pool can be accessed as a file system, such as mounting and
	unmounting, taking snapshots, and setting properties.
	The physical storage characteristics, however, are managed by the
	.Xr zpool 8
	command.
	.Pp
	See
	.Xr zpool 8
	for more information on creating and administering pools.
	.Ss Snapshots
	A snapshot is a read-only copy of a file system or volume.
	Snapshots can be created extremely quickly, and initially consume no additional
	space within the pool.
	As data within the active dataset changes, the snapshot consumes more data than
	would otherwise be shared with the active dataset.
	.Pp
	Snapshots can have arbitrary names.
	Snapshots of volumes can be cloned or rolled back, visibility is determined
	by the
	.Sy snapdev
	property of the parent volume.
	.Pp
	File system snapshots can be accessed under the
	.Pa .zfs/snapshot
	directory in the root of the file system.
	Snapshots are automatically mounted on demand and may be unmounted at regular
	intervals.
	The visibility of the
	.Pa .zfs
	directory can be controlled by the
	.Sy snapdir
	property.
	.Ss Bookmarks
	A bookmark is like a snapshot, a read-only copy of a file system or volume.
	Bookmarks can be created extremely quickly, compared to snapshots, and they
	consume no additional space within the pool.
	Bookmarks can also have arbitrary names, much like snapshots.
	.Pp
	Unlike snapshots, bookmarks can not be accessed through the filesystem in any way.
	From a storage standpoint a bookmark just provides a way to reference
	when a snapshot was created as a distinct object.
	Bookmarks are initially tied to a snapshot, not the filesystem or volume,
	and they will survive if the snapshot itself is destroyed.
	Since they are very light weight there's little incentive to destroy them.
	.Ss Clones
	A clone is a writable volume or file system whose initial contents are the same
	as another dataset.
	As with snapshots, creating a clone is nearly instantaneous, and initially
	consumes no additional space.
	.Pp
	Clones can only be created from a snapshot.
	When a snapshot is cloned, it creates an implicit dependency between the parent
	and child.
	Even though the clone is created somewhere else in the dataset hierarchy, the
	original snapshot cannot be destroyed as long as a clone exists.
	The
	.Sy origin
	property exposes this dependency, and the
	.Cm destroy
	command lists any such dependencies, if they exist.
	.Pp
	The clone parent-child dependency relationship can be reversed by using the
	.Cm promote
	subcommand.
	This causes the
	.Qq origin
	file system to become a clone of the specified file system, which makes it
	possible to destroy the file system that the clone was created from.
	.Ss "Mount Points"
	Creating a ZFS file system is a simple operation, so the number of file systems
	per system is likely to be numerous.
	To cope with this, ZFS automatically manages mounting and unmounting file
	systems without the need to edit the
	.Pa /etc/fstab
	file.
	All automatically managed file systems are mounted by ZFS at boot time.
	.Pp
	By default, file systems are mounted under
	.Pa /path ,
	where
	.Ar path
	is the name of the file system in the ZFS namespace.
	Directories are created and destroyed as needed.
	.Pp
	A file system can also have a mount point set in the
	.Sy mountpoint
	property.
	This directory is created as needed, and ZFS automatically mounts the file
	system when the
	.Nm zfs Cm mount Fl a
	command is invoked
	.Po without editing
	.Pa /etc/fstab
	.Pc .
	The
	.Sy mountpoint
	property can be inherited, so if
	.Em pool/home
	has a mount point of
	.Pa /export/stuff ,
	then
	.Em pool/home/user
	automatically inherits a mount point of
	.Pa /export/stuff/user .
	.Pp
	A file system
	.Sy mountpoint
	property of
	.Sy none
	prevents the file system from being mounted.
	.Pp
	If needed, ZFS file systems can also be managed with traditional tools
	.Po
	.Nm mount ,
	.Nm umount ,
	.Pa /etc/fstab
	.Pc .
	If a file system's mount point is set to
	.Sy legacy ,
	ZFS makes no attempt to manage the file system, and the administrator is
	responsible for mounting and unmounting the file system.
	Because pools must
	be imported before a legacy mount can succeed, administrators should ensure
	that legacy mounts are only attempted after the zpool import process
	finishes at boot time.
	For example, on machines using systemd, the mount option
	.Pp
	.Nm x-systemd.requires=zfs-import.target
	.Pp
	will ensure that the zfs-import completes before systemd attempts mounting
	the filesystem.
	See
	.Xr systemd.mount 5
	for details.
	.Ss Deduplication
	Deduplication is the process for removing redundant data at the block level,
	reducing the total amount of data stored.
	If a file system has the
	.Sy dedup
	property enabled, duplicate data blocks are removed synchronously.
	The result
	is that only unique data is stored and common components are shared among files.
	.Pp
	Deduplicating data is a very resource-intensive operation.
	It is generally recommended that you have at least 1.25 GiB of RAM
	per 1 TiB of storage when you enable deduplication.
	Calculating the exact requirement depends heavily
	on the type of data stored in the pool.
	.Pp
	Enabling deduplication on an improperly-designed system can result in
	performance issues (slow IO and administrative operations).
	It can potentially lead to problems importing a pool due to memory exhaustion.
	Deduplication can consume significant processing power (CPU) and memory as well
	as generate additional disk IO.
	.Pp
	Before creating a pool with deduplication enabled, ensure that you have planned
	your hardware requirements appropriately and implemented appropriate recovery
	practices, such as regular backups.
	Consider using the
	.Sy compression
	property as a less resource-intensive alternative.
	diff --git a/sys/contrib/openzfs/man/man8/zfsprops.8 b/sys/contrib/openzfs/man/man7/zfsprops.7
	similarity index 99%
	rename from sys/contrib/openzfs/man/man8/zfsprops.8
	rename to sys/contrib/openzfs/man/man7/zfsprops.7
	index 1b985c98e248..3f3ddcebf320 100644
	--- a/sys/contrib/openzfs/man/man8/zfsprops.8
	+++ b/sys/contrib/openzfs/man/man7/zfsprops.7
	@@ -1,2067 +1,2067 @@
	.\"
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	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2011, Pawel Jakub Dawidek <pjd@FreeBSD.org>
	.\" Copyright (c) 2012, Glen Barber <gjb@FreeBSD.org>
	.\" Copyright (c) 2012, Bryan Drewery <bdrewery@FreeBSD.org>
	.\" Copyright (c) 2013, Steven Hartland <smh@FreeBSD.org>
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright (c) 2016 Nexenta Systems, Inc. All Rights Reserved.
	.\" Copyright (c) 2014, Xin LI <delphij@FreeBSD.org>
	.\" Copyright (c) 2014-2015, The FreeBSD Foundation, All Rights Reserved.
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\" Copyright (c) 2019, Kjeld Schouten-Lebbing
	.\"
	.Dd May 24, 2021
	-.Dt ZFSPROPS 8
	+.Dt ZFSPROPS 7
	.Os
	.
	.Sh NAME
	.Nm zfsprops
	.Nd native and user-defined properties of ZFS datasets
	.
	.Sh DESCRIPTION
	Properties are divided into two types, native properties and user-defined
	.Po or
	.Qq user
	.Pc
	properties.
	Native properties either export internal statistics or control ZFS behavior.
	In addition, native properties are either editable or read-only.
	User properties have no effect on ZFS behavior, but you can use them to annotate
	datasets in a way that is meaningful in your environment.
	For more information about user properties, see the
	.Sx User Properties
	section, below.
	.
	.Ss Native Properties
	Every dataset has a set of properties that export statistics about the dataset
	as well as control various behaviors.
	Properties are inherited from the parent unless overridden by the child.
	Some properties apply only to certain types of datasets
	.Pq file systems, volumes, or snapshots .
	.Pp
	The values of numeric properties can be specified using human-readable suffixes
	.Po for example,
	.Sy k ,
	.Sy KB ,
	.Sy M ,
	.Sy Gb ,
	and so forth, up to
	.Sy Z
	for zettabyte
	.Pc .
	The following are all valid
	.Pq and equal
	specifications:
	.Li 1536M, 1.5g, 1.50GB .
	.Pp
	The values of non-numeric properties are case sensitive and must be lowercase,
	except for
	.Sy mountpoint ,
	.Sy sharenfs ,
	and
	.Sy sharesmb .
	.Pp
	The following native properties consist of read-only statistics about the
	dataset.
	These properties can be neither set, nor inherited.
	Native properties apply to all dataset types unless otherwise noted.
	.Bl -tag -width "usedbyrefreservation"
	.It Sy available
	The amount of space available to the dataset and all its children, assuming that
	there is no other activity in the pool.
	Because space is shared within a pool, availability can be limited by any number
	of factors, including physical pool size, quotas, reservations, or other
	datasets within the pool.
	.Pp
	This property can also be referred to by its shortened column name,
	.Sy avail .
	.It Sy compressratio
	For non-snapshots, the compression ratio achieved for the
	.Sy used
	space of this dataset, expressed as a multiplier.
	The
	.Sy used
	property includes descendant datasets, and, for clones, does not include the
	space shared with the origin snapshot.
	For snapshots, the
	.Sy compressratio
	is the same as the
	.Sy refcompressratio
	property.
	Compression can be turned on by running:
	.Nm zfs Cm set Sy compression Ns = Ns Sy on Ar dataset .
	The default value is
	.Sy off .
	.It Sy createtxg
	The transaction group (txg) in which the dataset was created.
	Bookmarks have the same
	.Sy createtxg
	as the snapshot they are initially tied to.
	This property is suitable for ordering a list of snapshots,
	e.g. for incremental send and receive.
	.It Sy creation
	The time this dataset was created.
	.It Sy clones
	For snapshots, this property is a comma-separated list of filesystems or volumes
	which are clones of this snapshot.
	The clones'
	.Sy origin
	property is this snapshot.
	If the
	.Sy clones
	property is not empty, then this snapshot can not be destroyed
	.Po even with the
	.Fl r
	or
	.Fl f
	options
	.Pc .
	The roles of origin and clone can be swapped by promoting the clone with the
	.Nm zfs Cm promote
	command.
	.It Sy defer_destroy
	This property is
	.Sy on
	if the snapshot has been marked for deferred destroy by using the
	.Nm zfs Cm destroy Fl d
	command.
	Otherwise, the property is
	.Sy off .
	.It Sy encryptionroot
	For encrypted datasets, indicates where the dataset is currently inheriting its
	encryption key from.
	Loading or unloading a key for the
	.Sy encryptionroot
	will implicitly load / unload the key for any inheriting datasets (see
	.Nm zfs Cm load-key
	and
	.Nm zfs Cm unload-key
	for details).
	Clones will always share an
	encryption key with their origin.
	See the
	.Sx Encryption
	section of
	.Xr zfs-load-key 8
	for details.
	.It Sy filesystem_count
	The total number of filesystems and volumes that exist under this location in
	the dataset tree.
	This value is only available when a
	.Sy filesystem_limit
	has been set somewhere in the tree under which the dataset resides.
	.It Sy keystatus
	Indicates if an encryption key is currently loaded into ZFS.
	The possible values are
	.Sy none ,
	.Sy available ,
	and
	.Sy unavailable .
	See
	.Nm zfs Cm load-key
	and
	.Nm zfs Cm unload-key .
	.It Sy guid
	The 64 bit GUID of this dataset or bookmark which does not change over its
	entire lifetime.
	When a snapshot is sent to another pool, the received snapshot has the same GUID.
	Thus, the
	.Sy guid
	is suitable to identify a snapshot across pools.
	.It Sy logicalreferenced
	The amount of space that is
	.Qq logically
	accessible by this dataset.
	See the
	.Sy referenced
	property.
	The logical space ignores the effect of the
	.Sy compression
	and
	.Sy copies
	properties, giving a quantity closer to the amount of data that applications
	see.
	However, it does include space consumed by metadata.
	.Pp
	This property can also be referred to by its shortened column name,
	.Sy lrefer .
	.It Sy logicalused
	The amount of space that is
	.Qq logically
	consumed by this dataset and all its descendents.
	See the
	.Sy used
	property.
	The logical space ignores the effect of the
	.Sy compression
	and
	.Sy copies
	properties, giving a quantity closer to the amount of data that applications
	see.
	However, it does include space consumed by metadata.
	.Pp
	This property can also be referred to by its shortened column name,
	.Sy lused .
	.It Sy mounted
	For file systems, indicates whether the file system is currently mounted.
	This property can be either
	.Sy yes
	or
	.Sy no .
	.It Sy objsetid
	A unique identifier for this dataset within the pool.
	Unlike the dataset's
	.Sy guid , No the Sy objsetid
	of a dataset is not transferred to other pools when the snapshot is copied
	with a send/receive operation.
	The
	.Sy objsetid
	can be reused (for a new dataset) after the dataset is deleted.
	.It Sy origin
	For cloned file systems or volumes, the snapshot from which the clone was
	created.
	See also the
	.Sy clones
	property.
	.It Sy receive_resume_token
	For filesystems or volumes which have saved partially-completed state from
	.Nm zfs Cm receive Fl s ,
	this opaque token can be provided to
	.Nm zfs Cm send Fl t
	to resume and complete the
	.Nm zfs Cm receive .
	.It Sy redact_snaps
	For bookmarks, this is the list of snapshot guids the bookmark contains a redaction
	list for.
	For snapshots, this is the list of snapshot guids the snapshot is redacted with
	respect to.
	.It Sy referenced
	The amount of data that is accessible by this dataset, which may or may not be
	shared with other datasets in the pool.
	When a snapshot or clone is created, it initially references the same amount of
	space as the file system or snapshot it was created from, since its contents are
	identical.
	.Pp
	This property can also be referred to by its shortened column name,
	.Sy refer .
	.It Sy refcompressratio
	The compression ratio achieved for the
	.Sy referenced
	space of this dataset, expressed as a multiplier.
	See also the
	.Sy compressratio
	property.
	.It Sy snapshot_count
	The total number of snapshots that exist under this location in the dataset
	tree.
	This value is only available when a
	.Sy snapshot_limit
	has been set somewhere in the tree under which the dataset resides.
	.It Sy type
	The type of dataset:
	.Sy filesystem ,
	.Sy volume ,
	.Sy snapshot ,
	or
	.Sy bookmark .
	.It Sy used
	The amount of space consumed by this dataset and all its descendents.
	This is the value that is checked against this dataset's quota and reservation.
	The space used does not include this dataset's reservation, but does take into
	account the reservations of any descendent datasets.
	The amount of space that a dataset consumes from its parent, as well as the
	amount of space that is freed if this dataset is recursively destroyed, is the
	greater of its space used and its reservation.
	.Pp
	The used space of a snapshot
	.Po see the
	.Sx Snapshots
	section of
	-.Xr zfsconcepts 8
	+.Xr zfsconcepts 7
	.Pc
	is space that is referenced exclusively by this snapshot.
	If this snapshot is destroyed, the amount of
	.Sy used
	space will be freed.
	Space that is shared by multiple snapshots isn't accounted for in this metric.
	When a snapshot is destroyed, space that was previously shared with this
	snapshot can become unique to snapshots adjacent to it, thus changing the used
	space of those snapshots.
	The used space of the latest snapshot can also be affected by changes in the
	file system.
	Note that the
	.Sy used
	space of a snapshot is a subset of the
	.Sy written
	space of the snapshot.
	.Pp
	The amount of space used, available, or referenced does not take into account
	pending changes.
	Pending changes are generally accounted for within a few seconds.
	Committing a change to a disk using
	.Xr fsync 2
	or
	.Sy O_SYNC
	does not necessarily guarantee that the space usage information is updated
	immediately.
	.It Sy usedby*
	The
	.Sy usedby*
	properties decompose the
	.Sy used
	properties into the various reasons that space is used.
	Specifically,
	.Sy used No =
	.Sy usedbychildren No +
	.Sy usedbydataset No +
	.Sy usedbyrefreservation No +
	.Sy usedbysnapshots .
	These properties are only available for datasets created on
	.Nm zpool
	.Qo version 13 Qc
	pools.
	.It Sy usedbychildren
	The amount of space used by children of this dataset, which would be freed if
	all the dataset's children were destroyed.
	.It Sy usedbydataset
	The amount of space used by this dataset itself, which would be freed if the
	dataset were destroyed
	.Po after first removing any
	.Sy refreservation
	and destroying any necessary snapshots or descendents
	.Pc .
	.It Sy usedbyrefreservation
	The amount of space used by a
	.Sy refreservation
	set on this dataset, which would be freed if the
	.Sy refreservation
	was removed.
	.It Sy usedbysnapshots
	The amount of space consumed by snapshots of this dataset.
	In particular, it is the amount of space that would be freed if all of this
	dataset's snapshots were destroyed.
	Note that this is not simply the sum of the snapshots'
	.Sy used
	properties because space can be shared by multiple snapshots.
	.It Sy userused Ns @ Ns Ar user
	The amount of space consumed by the specified user in this dataset.
	Space is charged to the owner of each file, as displayed by
	.Nm ls Fl l .
	The amount of space charged is displayed by
	.Nm du No and Nm ls Fl s .
	See the
	.Nm zfs Cm userspace
	command for more information.
	.Pp
	Unprivileged users can access only their own space usage.
	The root user, or a user who has been granted the
	.Sy userused
	privilege with
	.Nm zfs Cm allow ,
	can access everyone's usage.
	.Pp
	The
	.Sy userused Ns @ Ns Ar ...
	properties are not displayed by
	.Nm zfs Cm get Sy all .
	The user's name must be appended after the
	.Sy @
	symbol, using one of the following forms:
	.Bl -bullet -compact -offset 4n
	.It
	POSIX name
	.Pq Qq joe
	.It
	POSIX numeric ID
	.Pq Qq 789
	.It
	SID name
	.Pq Qq joe.smith@mydomain
	.It
	SID numeric ID
	.Pq Qq S-1-123-456-789
	.El
	.Pp
	Files created on Linux always have POSIX owners.
	.It Sy userobjused Ns @ Ns Ar user
	The
	.Sy userobjused
	property is similar to
	.Sy userused
	but instead it counts the number of objects consumed by a user.
	This property counts all objects allocated on behalf of the user,
	it may differ from the results of system tools such as
	.Nm df Fl i .
	.Pp
	When the property
	.Sy xattr Ns = Ns Sy on
	is set on a file system additional objects will be created per-file to store
	extended attributes.
	These additional objects are reflected in the
	.Sy userobjused
	value and are counted against the user's
	.Sy userobjquota .
	When a file system is configured to use
	.Sy xattr Ns = Ns Sy sa
	no additional internal objects are normally required.
	.It Sy userrefs
	This property is set to the number of user holds on this snapshot.
	User holds are set by using the
	.Nm zfs Cm hold
	command.
	.It Sy groupused Ns @ Ns Ar group
	The amount of space consumed by the specified group in this dataset.
	Space is charged to the group of each file, as displayed by
	.Nm ls Fl l .
	See the
	.Sy userused Ns @ Ns Ar user
	property for more information.
	.Pp
	Unprivileged users can only access their own groups' space usage.
	The root user, or a user who has been granted the
	.Sy groupused
	privilege with
	.Nm zfs Cm allow ,
	can access all groups' usage.
	.It Sy groupobjused Ns @ Ns Ar group
	The number of objects consumed by the specified group in this dataset.
	Multiple objects may be charged to the group for each file when extended
	attributes are in use.
	See the
	.Sy userobjused Ns @ Ns Ar user
	property for more information.
	.Pp
	Unprivileged users can only access their own groups' space usage.
	The root user, or a user who has been granted the
	.Sy groupobjused
	privilege with
	.Nm zfs Cm allow ,
	can access all groups' usage.
	.It Sy projectused Ns @ Ns Ar project
	The amount of space consumed by the specified project in this dataset.
	Project is identified via the project identifier (ID) that is object-based
	numeral attribute.
	An object can inherit the project ID from its parent object (if the
	parent has the flag of inherit project ID that can be set and changed via
	.Nm chattr Fl /+P
	or
	.Nm zfs project Fl s )
	when being created.
	The privileged user can set and change object's project
	ID via
	.Nm chattr Fl p
	or
	.Nm zfs project Fl s
	anytime.
	Space is charged to the project of each file, as displayed by
	.Nm lsattr Fl p
	or
	.Nm zfs project .
	See the
	.Sy userused Ns @ Ns Ar user
	property for more information.
	.Pp
	The root user, or a user who has been granted the
	.Sy projectused
	privilege with
	.Nm zfs allow ,
	can access all projects' usage.
	.It Sy projectobjused Ns @ Ns Ar project
	The
	.Sy projectobjused
	is similar to
	.Sy projectused
	but instead it counts the number of objects consumed by project.
	When the property
	.Sy xattr Ns = Ns Sy on
	is set on a fileset, ZFS will create additional objects per-file to store
	extended attributes.
	These additional objects are reflected in the
	.Sy projectobjused
	value and are counted against the project's
	.Sy projectobjquota .
	When a filesystem is configured to use
	.Sy xattr Ns = Ns Sy sa
	no additional internal objects are required.
	See the
	.Sy userobjused Ns @ Ns Ar user
	property for more information.
	.Pp
	The root user, or a user who has been granted the
	.Sy projectobjused
	privilege with
	.Nm zfs allow ,
	can access all projects' objects usage.
	.It Sy volblocksize
	For volumes, specifies the block size of the volume.
	The
	.Sy blocksize
	cannot be changed once the volume has been written, so it should be set at
	volume creation time.
	The default
	.Sy blocksize
	for volumes is 8 Kbytes.
	Any power of 2 from 512 bytes to 128 Kbytes is valid.
	.Pp
	This property can also be referred to by its shortened column name,
	.Sy volblock .
	.It Sy written
	The amount of space
	.Sy referenced
	by this dataset, that was written since the previous snapshot
	.Pq i.e. that is not referenced by the previous snapshot .
	.It Sy written Ns @ Ns Ar snapshot
	The amount of
	.Sy referenced
	space written to this dataset since the specified snapshot.
	This is the space that is referenced by this dataset but was not referenced by
	the specified snapshot.
	.Pp
	The
	.Ar snapshot
	may be specified as a short snapshot name
	.Pq just the part after the Sy @ ,
	in which case it will be interpreted as a snapshot in the same filesystem as
	this dataset.
	The
	.Ar snapshot
	may be a full snapshot name
	.Pq Ar filesystem Ns @ Ns Ar snapshot ,
	which for clones may be a snapshot in the origin's filesystem
	.Pq or the origin of the origin's filesystem, etc.
	.El
	.Pp
	The following native properties can be used to change the behavior of a ZFS
	dataset.
	.Bl -tag -width ""
	.It Xo
	.Sy aclinherit Ns = Ns Sy discard Ns \| Ns Sy noallow Ns \| Ns
	.Sy restricted Ns \| Ns Sy passthrough Ns \| Ns Sy passthrough-x
	.Xc
	Controls how ACEs are inherited when files and directories are created.
	.Bl -tag -compact -offset 4n -width "passthrough-x"
	.It Sy discard
	does not inherit any ACEs.
	.It Sy noallow
	only inherits inheritable ACEs that specify
	.Qq deny
	permissions.
	.It Sy restricted
	default, removes the
	.Sy write_acl
	and
	.Sy write_owner
	permissions when the ACE is inherited.
	.It Sy passthrough
	inherits all inheritable ACEs without any modifications.
	.It Sy passthrough-x
	same meaning as
	.Sy passthrough ,
	except that the
	.Sy owner@ , group@ , No and Sy everyone@
	ACEs inherit the execute permission only if the file creation mode also requests
	the execute bit.
	.El
	.Pp
	When the property value is set to
	.Sy passthrough ,
	files are created with a mode determined by the inheritable ACEs.
	If no inheritable ACEs exist that affect the mode, then the mode is set in
	accordance to the requested mode from the application.
	.Pp
	The
	.Sy aclinherit
	property does not apply to POSIX ACLs.
	.It Xo
	.Sy aclmode Ns = Ns Sy discard Ns \| Ns Sy groupmask Ns \| Ns
	.Sy passthrough Ns \| Ns Sy restricted Ns
	.Xc
	Controls how an ACL is modified during chmod(2) and how inherited ACEs
	are modified by the file creation mode:
	.Bl -tag -compact -offset 4n -width "passthrough"
	.It Sy discard
	default, deletes all
	.Sy ACEs
	except for those representing
	the mode of the file or directory requested by
	.Xr chmod 2 .
	.It Sy groupmask
	reduces permissions granted in all
	.Sy ALLOW
	entries found in the
	.Sy ACL
	such that they are no greater than the group permissions specified by
	.Xr chmod 2 .
	.It Sy passthrough
	indicates that no changes are made to the ACL other than creating or updating
	the necessary ACL entries to represent the new mode of the file or directory.
	.It Sy restricted
	will cause the
	.Xr chmod 2
	operation to return an error when used on any file or directory which has
	a non-trivial ACL whose entries can not be represented by a mode.
	.Xr chmod 2
	is required to change the set user ID, set group ID, or sticky bits on a file
	or directory, as they do not have equivalent ACL entries.
	In order to use
	.Xr chmod 2
	on a file or directory with a non-trivial ACL when
	.Sy aclmode
	is set to
	.Sy restricted ,
	you must first remove all ACL entries which do not represent the current mode.
	.El
	.It Sy acltype Ns = Ns Sy off Ns \| Ns Sy nfsv4 Ns \| Ns Sy posix
	Controls whether ACLs are enabled and if so what type of ACL to use.
	When this property is set to a type of ACL not supported by the current
	platform, the behavior is the same as if it were set to
	.Sy off .
	.Bl -tag -compact -offset 4n -width "posixacl"
	.It Sy off
	default on Linux, when a file system has the
	.Sy acltype
	property set to off then ACLs are disabled.
	.It Sy noacl
	an alias for
	.Sy off
	.It Sy nfsv4
	default on
	.Fx ,
	indicates that NFSv4-style ZFS ACLs should be used.
	These ACLs can be managed with the
	.Xr getfacl 1
	and
	.Xr setfacl 1 .
	The
	.Sy nfsv4
	ZFS ACL type is not yet supported on Linux.
	.It Sy posix
	indicates POSIX ACLs should be used.
	POSIX ACLs are specific to Linux and are not functional on other platforms.
	POSIX ACLs are stored as an extended
	attribute and therefore will not overwrite any existing NFSv4 ACLs which
	may be set.
	.It Sy posixacl
	an alias for
	.Sy posix
	.El
	.Pp
	To obtain the best performance when setting
	.Sy posix
	users are strongly encouraged to set the
	.Sy xattr Ns = Ns Sy sa
	property.
	This will result in the POSIX ACL being stored more efficiently on disk.
	But as a consequence, all new extended attributes will only be
	accessible from OpenZFS implementations which support the
	.Sy xattr Ns = Ns Sy sa
	property.
	See the
	.Sy xattr
	property for more details.
	.It Sy atime Ns = Ns Sy on Ns \| Ns Sy off
	Controls whether the access time for files is updated when they are read.
	Turning this property off avoids producing write traffic when reading files and
	can result in significant performance gains, though it might confuse mailers
	and other similar utilities.
	The values
	.Sy on
	and
	.Sy off
	are equivalent to the
	.Sy atime
	and
	.Sy noatime
	mount options.
	The default value is
	.Sy on .
	See also
	.Sy relatime
	below.
	.It Sy canmount Ns = Ns Sy on Ns \| Ns Sy off Ns \| Ns Sy noauto
	If this property is set to
	.Sy off ,
	the file system cannot be mounted, and is ignored by
	.Nm zfs Cm mount Fl a .
	Setting this property to
	.Sy off
	is similar to setting the
	.Sy mountpoint
	property to
	.Sy none ,
	except that the dataset still has a normal
	.Sy mountpoint
	property, which can be inherited.
	Setting this property to
	.Sy off
	allows datasets to be used solely as a mechanism to inherit properties.
	One example of setting
	.Sy canmount Ns = Ns Sy off
	is to have two datasets with the same
	.Sy mountpoint ,
	so that the children of both datasets appear in the same directory, but might
	have different inherited characteristics.
	.Pp
	When set to
	.Sy noauto ,
	a dataset can only be mounted and unmounted explicitly.
	The dataset is not mounted automatically when the dataset is created or
	imported, nor is it mounted by the
	.Nm zfs Cm mount Fl a
	command or unmounted by the
	.Nm zfs Cm unmount Fl a
	command.
	.Pp
	This property is not inherited.
	.It Xo
	.Sy checksum Ns = Ns Sy on Ns \| Ns Sy off Ns \| Ns Sy fletcher2 Ns \| Ns
	.Sy fletcher4 Ns \| Ns Sy sha256 Ns \| Ns Sy noparity Ns \| Ns
	.Sy sha512 Ns \| Ns Sy skein Ns \| Ns Sy edonr
	.Xc
	Controls the checksum used to verify data integrity.
	The default value is
	.Sy on ,
	which automatically selects an appropriate algorithm
	.Po currently,
	.Sy fletcher4 ,
	but this may change in future releases
	.Pc .
	The value
	.Sy off
	disables integrity checking on user data.
	The value
	.Sy noparity
	not only disables integrity but also disables maintaining parity for user data.
	This setting is used internally by a dump device residing on a RAID-Z pool and
	should not be used by any other dataset.
	Disabling checksums is
	.Em NOT
	a recommended practice.
	.Pp
	The
	.Sy sha512 ,
	.Sy skein ,
	and
	.Sy edonr
	checksum algorithms require enabling the appropriate features on the pool.
	.Fx
	does not support the
	.Sy edonr
	algorithm.
	.Pp
	Please see
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	for more information on these algorithms.
	.Pp
	Changing this property affects only newly-written data.
	.It Xo
	.Sy compression Ns = Ns Sy on Ns \| Ns Sy off Ns \| Ns Sy gzip Ns \| Ns
	.Sy gzip- Ns Ar N Ns \| Ns Sy lz4 Ns \| Ns Sy lzjb Ns \| Ns Sy zle Ns \| Ns Sy zstd Ns \| Ns
	.Sy zstd- Ns Ar N Ns \| Ns Sy zstd-fast Ns \| Ns Sy zstd-fast- Ns Ar N
	.Xc
	Controls the compression algorithm used for this dataset.
	.Pp
	Setting compression to
	.Sy on
	indicates that the current default compression algorithm should be used.
	The default balances compression and decompression speed, with compression ratio
	and is expected to work well on a wide variety of workloads.
	Unlike all other settings for this property,
	.Sy on
	does not select a fixed compression type.
	As new compression algorithms are added to ZFS and enabled on a pool, the
	default compression algorithm may change.
	The current default compression algorithm is either
	.Sy lzjb
	or, if the
	.Sy lz4_compress
	feature is enabled,
	.Sy lz4 .
	.Pp
	The
	.Sy lz4
	compression algorithm is a high-performance replacement for the
	.Sy lzjb
	algorithm.
	It features significantly faster compression and decompression, as well as a
	moderately higher compression ratio than
	.Sy lzjb ,
	but can only be used on pools with the
	.Sy lz4_compress
	feature set to
	.Sy enabled .
	See
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	for details on ZFS feature flags and the
	.Sy lz4_compress
	feature.
	.Pp
	The
	.Sy lzjb
	compression algorithm is optimized for performance while providing decent data
	compression.
	.Pp
	The
	.Sy gzip
	compression algorithm uses the same compression as the
	.Xr gzip 1
	command.
	You can specify the
	.Sy gzip
	level by using the value
	.Sy gzip- Ns Ar N ,
	where
	.Ar N
	is an integer from 1
	.Pq fastest
	to 9
	.Pq best compression ratio .
	Currently,
	.Sy gzip
	is equivalent to
	.Sy gzip-6
	.Po which is also the default for
	.Xr gzip 1
	.Pc .
	.Pp
	The
	.Sy zstd
	compression algorithm provides both high compression ratios and good performance.
	You can specify the
	.Sy zstd
	level by using the value
	.Sy zstd- Ns Ar N ,
	where
	.Ar N
	is an integer from 1
	.Pq fastest
	to 19
	.Pq best compression ratio .
	.Sy zstd
	is equivalent to
	.Sy zstd-3 .
	.Pp
	Faster speeds at the cost of the compression ratio can be requested by
	setting a negative
	.Sy zstd
	level.
	This is done using
	.Sy zstd-fast- Ns Ar N ,
	where
	.Ar N
	is an integer in [1-9,10,20,30,...,100,500,1000] which maps to a negative
	.Sy zstd
	level.
	The lower the level the faster the compression -
	.Ar 1000 No provides the fastest compression and lowest compression ratio.
	.Sy zstd-fast
	is equivalent to
	.Sy zstd-fast-1 .
	.Pp
	The
	.Sy zle
	compression algorithm compresses runs of zeros.
	.Pp
	This property can also be referred to by its shortened column name
	.Sy compress .
	Changing this property affects only newly-written data.
	.Pp
	When any setting except
	.Sy off
	is selected, compression will explicitly check for blocks consisting of only
	zeroes (the NUL byte).
	When a zero-filled block is detected, it is stored as
	a hole and not compressed using the indicated compression algorithm.
	.Pp
	Any block being compressed must be no larger than 7/8 of its original size
	after compression, otherwise the compression will not be considered worthwhile
	and the block saved uncompressed.
	Note that when the logical block is less than
	8 times the disk sector size this effectively reduces the necessary compression
	ratio; for example, 8kB blocks on disks with 4kB disk sectors must compress to 1/2
	or less of their original size.
	.It Xo
	.Sy context Ns = Ns Sy none Ns \| Ns
	.Ar SELinux-User : Ns Ar SElinux-Role : Ns Ar Selinux-Type : Ns Ar Sensitivity-Level
	.Xc
	This flag sets the SELinux context for all files in the file system under
	a mount point for that file system.
	See
	.Xr selinux 8
	for more information.
	.It Xo
	.Sy fscontext Ns = Ns Sy none Ns \| Ns
	.Ar SELinux-User : Ns Ar SElinux-Role : Ns Ar Selinux-Type : Ns Ar Sensitivity-Level
	.Xc
	This flag sets the SELinux context for the file system file system being
	mounted.
	See
	.Xr selinux 8
	for more information.
	.It Xo
	.Sy defcontext Ns = Ns Sy none Ns \| Ns
	.Ar SELinux-User : Ns Ar SElinux-Role : Ns Ar Selinux-Type : Ns Ar Sensitivity-Level
	.Xc
	This flag sets the SELinux default context for unlabeled files.
	See
	.Xr selinux 8
	for more information.
	.It Xo
	.Sy rootcontext Ns = Ns Sy none Ns \| Ns
	.Ar SELinux-User : Ns Ar SElinux-Role : Ns Ar Selinux-Type : Ns Ar Sensitivity-Level
	.Xc
	This flag sets the SELinux context for the root inode of the file system.
	See
	.Xr selinux 8
	for more information.
	.It Sy copies Ns = Ns Sy 1 Ns \| Ns Sy 2 Ns \| Ns Sy 3
	Controls the number of copies of data stored for this dataset.
	These copies are in addition to any redundancy provided by the pool, for
	example, mirroring or RAID-Z.
	The copies are stored on different disks, if possible.
	The space used by multiple copies is charged to the associated file and dataset,
	changing the
	.Sy used
	property and counting against quotas and reservations.
	.Pp
	Changing this property only affects newly-written data.
	Therefore, set this property at file system creation time by using the
	.Fl o Sy copies Ns = Ns Ar N
	option.
	.Pp
	Remember that ZFS will not import a pool with a missing top-level vdev.
	Do
	.Em NOT
	create, for example a two-disk striped pool and set
	.Sy copies Ns = Ns Ar 2
	on some datasets thinking you have setup redundancy for them.
	When a disk fails you will not be able to import the pool
	and will have lost all of your data.
	.Pp
	Encrypted datasets may not have
	.Sy copies Ns = Ns Ar 3
	since the implementation stores some encryption metadata where the third copy
	would normally be.
	.It Sy devices Ns = Ns Sy on Ns \| Ns Sy off
	Controls whether device nodes can be opened on this file system.
	The default value is
	.Sy on .
	The values
	.Sy on
	and
	.Sy off
	are equivalent to the
	.Sy dev
	and
	.Sy nodev
	mount options.
	.It Xo
	.Sy dedup Ns = Ns Sy off Ns \| Ns Sy on Ns \| Ns Sy verify Ns \| Ns
	.Sy sha256 Ns Oo , Ns Sy verify Oc Ns \| Ns Sy sha512 Ns Oo , Ns Sy verify Oc Ns \| Ns Sy skein Ns Oo , Ns Sy verify Oc Ns \| Ns
	.Sy edonr , Ns Sy verify
	.Xc
	Configures deduplication for a dataset.
	The default value is
	.Sy off .
	The default deduplication checksum is
	.Sy sha256
	(this may change in the future).
	When
	.Sy dedup
	is enabled, the checksum defined here overrides the
	.Sy checksum
	property.
	Setting the value to
	.Sy verify
	has the same effect as the setting
	.Sy sha256 , Ns Sy verify .
	.Pp
	If set to
	.Sy verify ,
	ZFS will do a byte-to-byte comparison in case of two blocks having the same
	signature to make sure the block contents are identical.
	Specifying
	.Sy verify
	is mandatory for the
	.Sy edonr
	algorithm.
	.Pp
	Unless necessary, deduplication should
	.Em not
	be enabled on a system.
	See the
	.Sx Deduplication
	section of
	-.Xr zfsconcepts 8 .
	+.Xr zfsconcepts 7 .
	.It Xo
	.Sy dnodesize Ns = Ns Sy legacy Ns \| Ns Sy auto Ns \| Ns Sy 1k Ns \| Ns
	.Sy 2k Ns \| Ns Sy 4k Ns \| Ns Sy 8k Ns \| Ns Sy 16k
	.Xc
	Specifies a compatibility mode or literal value for the size of dnodes in the
	file system.
	The default value is
	.Sy legacy .
	Setting this property to a value other than
	.Sy legacy No requires the Sy large_dnode No pool feature to be enabled.
	.Pp
	Consider setting
	.Sy dnodesize
	to
	.Sy auto
	if the dataset uses the
	.Sy xattr Ns = Ns Sy sa
	property setting and the workload makes heavy use of extended attributes.
	This
	may be applicable to SELinux-enabled systems, Lustre servers, and Samba
	servers, for example.
	Literal values are supported for cases where the optimal
	size is known in advance and for performance testing.
	.Pp
	Leave
	.Sy dnodesize
	set to
	.Sy legacy
	if you need to receive a send stream of this dataset on a pool that doesn't
	enable the
	.Sy large_dnode
	feature, or if you need to import this pool on a system that doesn't support the
	.Sy large_dnode No feature.
	.Pp
	This property can also be referred to by its shortened column name,
	.Sy dnsize .
	.It Xo
	.Sy encryption Ns = Ns Sy off Ns \| Ns Sy on Ns \| Ns Sy aes-128-ccm Ns \| Ns
	.Sy aes-192-ccm Ns \| Ns Sy aes-256-ccm Ns \| Ns Sy aes-128-gcm Ns \| Ns
	.Sy aes-192-gcm Ns \| Ns Sy aes-256-gcm
	.Xc
	Controls the encryption cipher suite (block cipher, key length, and mode) used
	for this dataset.
	Requires the
	.Sy encryption
	feature to be enabled on the pool.
	Requires a
	.Sy keyformat
	to be set at dataset creation time.
	.Pp
	Selecting
	.Sy encryption Ns = Ns Sy on
	when creating a dataset indicates that the default encryption suite will be
	selected, which is currently
	.Sy aes-256-gcm .
	In order to provide consistent data protection, encryption must be specified at
	dataset creation time and it cannot be changed afterwards.
	.Pp
	For more details and caveats about encryption see the
	.Sx Encryption
	section of
	.Xr zfs-load-key 8 .
	.It Sy keyformat Ns = Ns Sy raw Ns \| Ns Sy hex Ns \| Ns Sy passphrase
	Controls what format the user's encryption key will be provided as.
	This property is only set when the dataset is encrypted.
	.Pp
	Raw keys and hex keys must be 32 bytes long (regardless of the chosen
	encryption suite) and must be randomly generated.
	A raw key can be generated with the following command:
	.Dl # Nm dd Sy if=/dev/urandom bs=32 count=1 Sy of= Ns Pa /path/to/output/key
	.Pp
	Passphrases must be between 8 and 512 bytes long and will be processed through
	PBKDF2 before being used (see the
	.Sy pbkdf2iters
	property).
	Even though the encryption suite cannot be changed after dataset creation,
	the keyformat can be with
	.Nm zfs Cm change-key .
	.It Xo
	.Sy keylocation Ns = Ns Sy prompt Ns \| Ns Sy file:// Ns Ar /absolute/file/path Ns \| Ns Sy https:// Ns Ar address Ns \| Ns Sy http:// Ns Ar address
	.Xc
	Controls where the user's encryption key will be loaded from by default for
	commands such as
	.Nm zfs Cm load-key
	and
	.Nm zfs Cm mount Fl l .
	This property is only set for encrypted datasets which are encryption roots.
	If unspecified, the default is
	.Sy prompt .
	.Pp
	Even though the encryption suite cannot be changed after dataset creation, the
	keylocation can be with either
	.Nm zfs Cm set
	or
	.Nm zfs Cm change-key .
	If
	.Sy prompt
	is selected ZFS will ask for the key at the command prompt when it is required
	to access the encrypted data (see
	.Nm zfs Cm load-key
	for details).
	This setting will also allow the key to be passed in via the standard input stream,
	but users should be careful not to place keys which should be kept secret on
	the command line.
	If a file URI is selected, the key will be loaded from the
	specified absolute file path.
	If an HTTPS or HTTP URL is selected, it will be GETted using
	.Xr fetch 3 ,
	libcurl, or nothing, depending on compile-time configuration and run-time availability.
	The
	.Sy SSL_CA_CERT_FILE
	environment variable can be set to set the location
	of the concatenated certificate store.
	The
	.Sy SSL_CA_CERT_PATH
	environment variable can be set to override the location
	of the directory containing the certificate authority bundle.
	The
	.Sy SSL_CLIENT_CERT_FILE
	and
	.Sy SSL_CLIENT_KEY_FILE
	environment variables can be set to configure the path
	to the client certificate and its key.
	.It Sy pbkdf2iters Ns = Ns Ar iterations
	Controls the number of PBKDF2 iterations that a
	.Sy passphrase
	encryption key should be run through when processing it into an encryption key.
	This property is only defined when encryption is enabled and a keyformat of
	.Sy passphrase
	is selected.
	The goal of PBKDF2 is to significantly increase the
	computational difficulty needed to brute force a user's passphrase.
	This is accomplished by forcing the attacker to run each passphrase through a
	computationally expensive hashing function many times before they arrive at the
	resulting key.
	A user who actually knows the passphrase will only have to pay this cost once.
	As CPUs become better at processing, this number should be
	raised to ensure that a brute force attack is still not possible.
	The current default is
	.Sy 350000
	and the minimum is
	.Sy 100000 .
	This property may be changed with
	.Nm zfs Cm change-key .
	.It Sy exec Ns = Ns Sy on Ns \| Ns Sy off
	Controls whether processes can be executed from within this file system.
	The default value is
	.Sy on .
	The values
	.Sy on
	and
	.Sy off
	are equivalent to the
	.Sy exec
	and
	.Sy noexec
	mount options.
	.It Sy filesystem_limit Ns = Ns Ar count Ns \| Ns Sy none
	Limits the number of filesystems and volumes that can exist under this point in
	the dataset tree.
	The limit is not enforced if the user is allowed to change the limit.
	Setting a
	.Sy filesystem_limit
	to
	.Sy on
	a descendent of a filesystem that already has a
	.Sy filesystem_limit
	does not override the ancestor's
	.Sy filesystem_limit ,
	but rather imposes an additional limit.
	This feature must be enabled to be used
	.Po see
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	.Pc .
	.It Sy special_small_blocks Ns = Ns Ar size
	This value represents the threshold block size for including small file
	blocks into the special allocation class.
	Blocks smaller than or equal to this
	value will be assigned to the special allocation class while greater blocks
	will be assigned to the regular class.
	Valid values are zero or a power of two from 512B up to 1M.
	The default size is 0 which means no small file blocks
	will be allocated in the special class.
	.Pp
	Before setting this property, a special class vdev must be added to the
	pool.
	See
	-.Xr zpoolconcepts 8
	+.Xr zpoolconcepts 7
	for more details on the special allocation class.
	.It Sy mountpoint Ns = Ns Pa path Ns \| Ns Sy none Ns \| Ns Sy legacy
	Controls the mount point used for this file system.
	See the
	.Sx Mount Points
	section of
	-.Xr zfsconcepts 8
	+.Xr zfsconcepts 7
	for more information on how this property is used.
	.Pp
	When the
	.Sy mountpoint
	property is changed for a file system, the file system and any children that
	inherit the mount point are unmounted.
	If the new value is
	.Sy legacy ,
	then they remain unmounted.
	Otherwise, they are automatically remounted in the new location if the property
	was previously
	.Sy legacy
	or
	.Sy none ,
	or if they were mounted before the property was changed.
	In addition, any shared file systems are unshared and shared in the new
	location.
	.It Sy nbmand Ns = Ns Sy on Ns \| Ns Sy off
	Controls whether the file system should be mounted with
	.Sy nbmand
	.Pq Non-blocking mandatory locks .
	This is used for SMB clients.
	Changes to this property only take effect when the file system is umounted and
	remounted.
	Support for these locks is scarce and not described by POSIX.
	.It Sy overlay Ns = Ns Sy on Ns \| Ns Sy off
	Allow mounting on a busy directory or a directory which already contains
	files or directories.
	This is the default mount behavior for Linux and
	.Fx
	file systems.
	On these platforms the property is
	.Sy on
	by default.
	Set to
	.Sy off
	to disable overlay mounts for consistency with OpenZFS on other platforms.
	.It Sy primarycache Ns = Ns Sy all Ns \| Ns Sy none Ns \| Ns Sy metadata
	Controls what is cached in the primary cache
	.Pq ARC .
	If this property is set to
	.Sy all ,
	then both user data and metadata is cached.
	If this property is set to
	.Sy none ,
	then neither user data nor metadata is cached.
	If this property is set to
	.Sy metadata ,
	then only metadata is cached.
	The default value is
	.Sy all .
	.It Sy quota Ns = Ns Ar size Ns \| Ns Sy none
	Limits the amount of space a dataset and its descendents can consume.
	This property enforces a hard limit on the amount of space used.
	This includes all space consumed by descendents, including file systems and
	snapshots.
	Setting a quota on a descendent of a dataset that already has a quota does not
	override the ancestor's quota, but rather imposes an additional limit.
	.Pp
	Quotas cannot be set on volumes, as the
	.Sy volsize
	property acts as an implicit quota.
	.It Sy snapshot_limit Ns = Ns Ar count Ns \| Ns Sy none
	Limits the number of snapshots that can be created on a dataset and its
	descendents.
	Setting a
	.Sy snapshot_limit
	on a descendent of a dataset that already has a
	.Sy snapshot_limit
	does not override the ancestor's
	.Sy snapshot_limit ,
	but rather imposes an additional limit.
	The limit is not enforced if the user is allowed to change the limit.
	For example, this means that recursive snapshots taken from the global zone are
	counted against each delegated dataset within a zone.
	This feature must be enabled to be used
	.Po see
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	.Pc .
	.It Sy userquota@ Ns Ar user Ns = Ns Ar size Ns \| Ns Sy none
	Limits the amount of space consumed by the specified user.
	User space consumption is identified by the
	.Sy userspace@ Ns Ar user
	property.
	.Pp
	Enforcement of user quotas may be delayed by several seconds.
	This delay means that a user might exceed their quota before the system notices
	that they are over quota and begins to refuse additional writes with the
	.Er EDQUOT
	error message.
	See the
	.Nm zfs Cm userspace
	command for more information.
	.Pp
	Unprivileged users can only access their own groups' space usage.
	The root user, or a user who has been granted the
	.Sy userquota
	privilege with
	.Nm zfs Cm allow ,
	can get and set everyone's quota.
	.Pp
	This property is not available on volumes, on file systems before version 4, or
	on pools before version 15.
	The
	.Sy userquota@ Ns Ar ...
	properties are not displayed by
	.Nm zfs Cm get Sy all .
	The user's name must be appended after the
	.Sy @
	symbol, using one of the following forms:
	.Bl -bullet -compact -offset 4n
	.It
	POSIX name
	.Pq Qq joe
	.It
	POSIX numeric ID
	.Pq Qq 789
	.It
	SID name
	.Pq Qq joe.smith@mydomain
	.It
	SID numeric ID
	.Pq Qq S-1-123-456-789
	.El
	.Pp
	Files created on Linux always have POSIX owners.
	.It Sy userobjquota@ Ns Ar user Ns = Ns Ar size Ns \| Ns Sy none
	The
	.Sy userobjquota
	is similar to
	.Sy userquota
	but it limits the number of objects a user can create.
	Please refer to
	.Sy userobjused
	for more information about how objects are counted.
	.It Sy groupquota@ Ns Ar group Ns = Ns Ar size Ns \| Ns Sy none
	Limits the amount of space consumed by the specified group.
	Group space consumption is identified by the
	.Sy groupused@ Ns Ar group
	property.
	.Pp
	Unprivileged users can access only their own groups' space usage.
	The root user, or a user who has been granted the
	.Sy groupquota
	privilege with
	.Nm zfs Cm allow ,
	can get and set all groups' quotas.
	.It Sy groupobjquota@ Ns Ar group Ns = Ns Ar size Ns \| Ns Sy none
	The
	.Sy groupobjquota
	is similar to
	.Sy groupquota
	but it limits number of objects a group can consume.
	Please refer to
	.Sy userobjused
	for more information about how objects are counted.
	.It Sy projectquota@ Ns Ar project Ns = Ns Ar size Ns \| Ns Sy none
	Limits the amount of space consumed by the specified project.
	Project space consumption is identified by the
	.Sy projectused@ Ns Ar project
	property.
	Please refer to
	.Sy projectused
	for more information about how project is identified and set/changed.
	.Pp
	The root user, or a user who has been granted the
	.Sy projectquota
	privilege with
	.Nm zfs allow ,
	can access all projects' quota.
	.It Sy projectobjquota@ Ns Ar project Ns = Ns Ar size Ns \| Ns Sy none
	The
	.Sy projectobjquota
	is similar to
	.Sy projectquota
	but it limits number of objects a project can consume.
	Please refer to
	.Sy userobjused
	for more information about how objects are counted.
	.It Sy readonly Ns = Ns Sy on Ns \| Ns Sy off
	Controls whether this dataset can be modified.
	The default value is
	.Sy off .
	The values
	.Sy on
	and
	.Sy off
	are equivalent to the
	.Sy ro
	and
	.Sy rw
	mount options.
	.Pp
	This property can also be referred to by its shortened column name,
	.Sy rdonly .
	.It Sy recordsize Ns = Ns Ar size
	Specifies a suggested block size for files in the file system.
	This property is designed solely for use with database workloads that access
	files in fixed-size records.
	ZFS automatically tunes block sizes according to internal algorithms optimized
	for typical access patterns.
	.Pp
	For databases that create very large files but access them in small random
	chunks, these algorithms may be suboptimal.
	Specifying a
	.Sy recordsize
	greater than or equal to the record size of the database can result in
	significant performance gains.
	Use of this property for general purpose file systems is strongly discouraged,
	and may adversely affect performance.
	.Pp
	The size specified must be a power of two greater than or equal to
	.Ar 512B
	and less than or equal to
	.Ar 128kB .
	If the
	.Sy large_blocks
	feature is enabled on the pool, the size may be up to
	.Ar 1MB .
	See
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	for details on ZFS feature flags.
	.Pp
	Changing the file system's
	.Sy recordsize
	affects only files created afterward; existing files are unaffected.
	.Pp
	This property can also be referred to by its shortened column name,
	.Sy recsize .
	.It Sy redundant_metadata Ns = Ns Sy all Ns \| Ns Sy most
	Controls what types of metadata are stored redundantly.
	ZFS stores an extra copy of metadata, so that if a single block is corrupted,
	the amount of user data lost is limited.
	This extra copy is in addition to any redundancy provided at the pool level
	.Pq e.g. by mirroring or RAID-Z ,
	and is in addition to an extra copy specified by the
	.Sy copies
	property
	.Pq up to a total of 3 copies .
	For example if the pool is mirrored,
	.Sy copies Ns = Ns 2 ,
	and
	.Sy redundant_metadata Ns = Ns Sy most ,
	then ZFS stores 6 copies of most metadata, and 4 copies of data and some
	metadata.
	.Pp
	When set to
	.Sy all ,
	ZFS stores an extra copy of all metadata.
	If a single on-disk block is corrupt, at worst a single block of user data
	.Po which is
	.Sy recordsize
	bytes long
	.Pc
	can be lost.
	.Pp
	When set to
	.Sy most ,
	ZFS stores an extra copy of most types of metadata.
	This can improve performance of random writes, because less metadata must be
	written.
	In practice, at worst about 100 blocks
	.Po of
	.Sy recordsize
	bytes each
	.Pc
	of user data can be lost if a single on-disk block is corrupt.
	The exact behavior of which metadata blocks are stored redundantly may change in
	future releases.
	.Pp
	The default value is
	.Sy all .
	.It Sy refquota Ns = Ns Ar size Ns \| Ns Sy none
	Limits the amount of space a dataset can consume.
	This property enforces a hard limit on the amount of space used.
	This hard limit does not include space used by descendents, including file
	systems and snapshots.
	.It Sy refreservation Ns = Ns Ar size Ns \| Ns Sy none Ns \| Ns Sy auto
	The minimum amount of space guaranteed to a dataset, not including its
	descendents.
	When the amount of space used is below this value, the dataset is treated as if
	it were taking up the amount of space specified by
	.Sy refreservation .
	The
	.Sy refreservation
	reservation is accounted for in the parent datasets' space used, and counts
	against the parent datasets' quotas and reservations.
	.Pp
	If
	.Sy refreservation
	is set, a snapshot is only allowed if there is enough free pool space outside of
	this reservation to accommodate the current number of
	.Qq referenced
	bytes in the dataset.
	.Pp
	If
	.Sy refreservation
	is set to
	.Sy auto ,
	a volume is thick provisioned
	.Po or
	.Qq not sparse
	.Pc .
	.Sy refreservation Ns = Ns Sy auto
	is only supported on volumes.
	See
	.Sy volsize
	in the
	.Sx Native Properties
	section for more information about sparse volumes.
	.Pp
	This property can also be referred to by its shortened column name,
	.Sy refreserv .
	.It Sy relatime Ns = Ns Sy on Ns \| Ns Sy off
	Controls the manner in which the access time is updated when
	.Sy atime Ns = Ns Sy on
	is set.
	Turning this property on causes the access time to be updated relative
	to the modify or change time.
	Access time is only updated if the previous
	access time was earlier than the current modify or change time or if the
	existing access time hasn't been updated within the past 24 hours.
	The default value is
	.Sy off .
	The values
	.Sy on
	and
	.Sy off
	are equivalent to the
	.Sy relatime
	and
	.Sy norelatime
	mount options.
	.It Sy reservation Ns = Ns Ar size Ns \| Ns Sy none
	The minimum amount of space guaranteed to a dataset and its descendants.
	When the amount of space used is below this value, the dataset is treated as if
	it were taking up the amount of space specified by its reservation.
	Reservations are accounted for in the parent datasets' space used, and count
	against the parent datasets' quotas and reservations.
	.Pp
	This property can also be referred to by its shortened column name,
	.Sy reserv .
	.It Sy secondarycache Ns = Ns Sy all Ns \| Ns Sy none Ns \| Ns Sy metadata
	Controls what is cached in the secondary cache
	.Pq L2ARC .
	If this property is set to
	.Sy all ,
	then both user data and metadata is cached.
	If this property is set to
	.Sy none ,
	then neither user data nor metadata is cached.
	If this property is set to
	.Sy metadata ,
	then only metadata is cached.
	The default value is
	.Sy all .
	.It Sy setuid Ns = Ns Sy on Ns \| Ns Sy off
	Controls whether the setuid bit is respected for the file system.
	The default value is
	.Sy on .
	The values
	.Sy on
	and
	.Sy off
	are equivalent to the
	.Sy suid
	and
	.Sy nosuid
	mount options.
	.It Sy sharesmb Ns = Ns Sy on Ns \| Ns Sy off Ns \| Ns Ar opts
	Controls whether the file system is shared by using
	.Sy Samba USERSHARES
	and what options are to be used.
	Otherwise, the file system is automatically shared and unshared with the
	.Nm zfs Cm share
	and
	.Nm zfs Cm unshare
	commands.
	If the property is set to on, the
	.Xr net 8
	command is invoked to create a
	.Sy USERSHARE .
	.Pp
	Because SMB shares requires a resource name, a unique resource name is
	constructed from the dataset name.
	The constructed name is a copy of the
	dataset name except that the characters in the dataset name, which would be
	invalid in the resource name, are replaced with underscore (_) characters.
	Linux does not currently support additional options which might be available
	on Solaris.
	.Pp
	If the
	.Sy sharesmb
	property is set to
	.Sy off ,
	the file systems are unshared.
	.Pp
	The share is created with the ACL (Access Control List) "Everyone:F" ("F"
	stands for "full permissions", i.e. read and write permissions) and no guest
	access (which means Samba must be able to authenticate a real user, system
	passwd/shadow, LDAP or smbpasswd based) by default.
	This means that any additional access control
	(disallow specific user specific access etc) must be done on the underlying file system.
	.It Sy sharenfs Ns = Ns Sy on Ns \| Ns Sy off Ns \| Ns Ar opts
	Controls whether the file system is shared via NFS, and what options are to be
	used.
	A file system with a
	.Sy sharenfs
	property of
	.Sy off
	is managed with the
	.Xr exportfs 8
	command and entries in the
	.Pa /etc/exports
	file.
	Otherwise, the file system is automatically shared and unshared with the
	.Nm zfs Cm share
	and
	.Nm zfs Cm unshare
	commands.
	If the property is set to
	.Sy on ,
	the dataset is shared using the default options:
	.Dl sec=sys,rw,crossmnt,no_subtree_check
	.Pp
	See
	.Xr exports 5
	for the meaning of the default options.
	Otherwise, the
	.Xr exportfs 8
	command is invoked with options equivalent to the contents of this property.
	.Pp
	When the
	.Sy sharenfs
	property is changed for a dataset, the dataset and any children inheriting the
	property are re-shared with the new options, only if the property was previously
	.Sy off ,
	or if they were shared before the property was changed.
	If the new property is
	.Sy off ,
	the file systems are unshared.
	.It Sy logbias Ns = Ns Sy latency Ns \| Ns Sy throughput
	Provide a hint to ZFS about handling of synchronous requests in this dataset.
	If
	.Sy logbias
	is set to
	.Sy latency
	.Pq the default ,
	ZFS will use pool log devices
	.Pq if configured
	to handle the requests at low latency.
	If
	.Sy logbias
	is set to
	.Sy throughput ,
	ZFS will not use configured pool log devices.
	ZFS will instead optimize synchronous operations for global pool throughput and
	efficient use of resources.
	.It Sy snapdev Ns = Ns Sy hidden Ns \| Ns Sy visible
	Controls whether the volume snapshot devices under
	.Pa /dev/zvol/ Ns Aq Ar pool
	are hidden or visible.
	The default value is
	.Sy hidden .
	.It Sy snapdir Ns = Ns Sy hidden Ns \| Ns Sy visible
	Controls whether the
	.Pa .zfs
	directory is hidden or visible in the root of the file system as discussed in
	the
	.Sx Snapshots
	section of
	-.Xr zfsconcepts 8 .
	+.Xr zfsconcepts 7 .
	The default value is
	.Sy hidden .
	.It Sy sync Ns = Ns Sy standard Ns \| Ns Sy always Ns \| Ns Sy disabled
	Controls the behavior of synchronous requests
	.Pq e.g. fsync, O_DSYNC .
	.Sy standard
	is the POSIX-specified behavior of ensuring all synchronous requests
	are written to stable storage and all devices are flushed to ensure
	data is not cached by device controllers
	.Pq this is the default .
	.Sy always
	causes every file system transaction to be written and flushed before its
	system call returns.
	This has a large performance penalty.
	.Sy disabled
	disables synchronous requests.
	File system transactions are only committed to stable storage periodically.
	This option will give the highest performance.
	However, it is very dangerous as ZFS would be ignoring the synchronous
	transaction demands of applications such as databases or NFS.
	Administrators should only use this option when the risks are understood.
	.It Sy version Ns = Ns Ar N Ns \| Ns Sy current
	The on-disk version of this file system, which is independent of the pool
	version.
	This property can only be set to later supported versions.
	See the
	.Nm zfs Cm upgrade
	command.
	.It Sy volsize Ns = Ns Ar size
	For volumes, specifies the logical size of the volume.
	By default, creating a volume establishes a reservation of equal size.
	For storage pools with a version number of 9 or higher, a
	.Sy refreservation
	is set instead.
	Any changes to
	.Sy volsize
	are reflected in an equivalent change to the reservation
	.Pq or Sy refreservation .
	The
	.Sy volsize
	can only be set to a multiple of
	.Sy volblocksize ,
	and cannot be zero.
	.Pp
	The reservation is kept equal to the volume's logical size to prevent unexpected
	behavior for consumers.
	Without the reservation, the volume could run out of space, resulting in
	undefined behavior or data corruption, depending on how the volume is used.
	These effects can also occur when the volume size is changed while it is in use
	.Pq particularly when shrinking the size .
	Extreme care should be used when adjusting the volume size.
	.Pp
	Though not recommended, a
	.Qq sparse volume
	.Po also known as
	.Qq thin provisioned
	.Pc
	can be created by specifying the
	.Fl s
	option to the
	.Nm zfs Cm create Fl V
	command, or by changing the value of the
	.Sy refreservation
	property
	.Po or
	.Sy reservation
	property on pool version 8 or earlier
	.Pc
	after the volume has been created.
	A
	.Qq sparse volume
	is a volume where the value of
	.Sy refreservation
	is less than the size of the volume plus the space required to store its
	metadata.
	Consequently, writes to a sparse volume can fail with
	.Er ENOSPC
	when the pool is low on space.
	For a sparse volume, changes to
	.Sy volsize
	are not reflected in the
	.Sy refreservation .
	A volume that is not sparse is said to be
	.Qq thick provisioned .
	A sparse volume can become thick provisioned by setting
	.Sy refreservation
	to
	.Sy auto .
	.It Sy volmode Ns = Ns Sy default Ns \| Ns Sy full Ns \| Ns Sy geom Ns \| Ns Sy dev Ns \| Ns Sy none
	This property specifies how volumes should be exposed to the OS.
	Setting it to
	.Sy full
	exposes volumes as fully fledged block devices, providing maximal
	functionality.
	The value
	.Sy geom
	is just an alias for
	.Sy full
	and is kept for compatibility.
	Setting it to
	.Sy dev
	hides its partitions.
	Volumes with property set to
	.Sy none
	are not exposed outside ZFS, but can be snapshotted, cloned, replicated, etc,
	that can be suitable for backup purposes.
	Value
	.Sy default
	means that volumes exposition is controlled by system-wide tunable
	.Sy zvol_volmode ,
	where
	.Sy full ,
	.Sy dev
	and
	.Sy none
	are encoded as 1, 2 and 3 respectively.
	The default value is
	.Sy full .
	.It Sy vscan Ns = Ns Sy on Ns \| Ns Sy off
	Controls whether regular files should be scanned for viruses when a file is
	opened and closed.
	In addition to enabling this property, the virus scan service must also be
	enabled for virus scanning to occur.
	The default value is
	.Sy off .
	This property is not used by OpenZFS.
	.It Sy xattr Ns = Ns Sy on Ns \| Ns Sy off Ns \| Ns Sy sa
	Controls whether extended attributes are enabled for this file system.
	Two styles of extended attributes are supported: either directory based
	or system attribute based.
	.Pp
	The default value of
	.Sy on
	enables directory based extended attributes.
	This style of extended attribute imposes no practical limit
	on either the size or number of attributes which can be set on a file.
	Although under Linux the
	.Xr getxattr 2
	and
	.Xr setxattr 2
	system calls limit the maximum size to 64K.
	This is the most compatible
	style of extended attribute and is supported by all ZFS implementations.
	.Pp
	System attribute based xattrs can be enabled by setting the value to
	.Sy sa .
	The key advantage of this type of xattr is improved performance.
	Storing extended attributes as system attributes
	significantly decreases the amount of disk IO required.
	Up to 64K of data may be stored per-file in the space reserved for system attributes.
	If there is not enough space available for an extended attribute
	then it will be automatically written as a directory based xattr.
	System attribute based extended attributes are not accessible
	on platforms which do not support the
	.Sy xattr Ns = Ns Sy sa
	feature.
	OpenZFS supports
	.Sy xattr Ns = Ns Sy sa
	on both
	.Fx
	and Linux.
	.Pp
	The use of system attribute based xattrs is strongly encouraged for users of
	SELinux or POSIX ACLs.
	Both of these features heavily rely on extended
	attributes and benefit significantly from the reduced access time.
	.Pp
	The values
	.Sy on
	and
	.Sy off
	are equivalent to the
	.Sy xattr
	and
	.Sy noxattr
	mount options.
	.It Sy jailed Ns = Ns Sy off Ns \| Ns Sy on
	Controls whether the dataset is managed from a jail.
	See
	.Xr zfs-jail 8
	for more information.
	Jails are a
	.Fx
	feature and are not relevant on other platforms.
	The default value is
	.Sy off .
	.It Sy zoned Ns = Ns Sy on Ns \| Ns Sy off
	Controls whether the dataset is managed from a non-global zone.
	Zones are a Solaris feature and are not relevant on other platforms.
	The default value is
	.Sy off .
	.El
	.Pp
	The following three properties cannot be changed after the file system is
	created, and therefore, should be set when the file system is created.
	If the properties are not set with the
	.Nm zfs Cm create
	or
	.Nm zpool Cm create
	commands, these properties are inherited from the parent dataset.
	If the parent dataset lacks these properties due to having been created prior to
	these features being supported, the new file system will have the default values
	for these properties.
	.Bl -tag -width ""
	.It Xo
	.Sy casesensitivity Ns = Ns Sy sensitive Ns \| Ns
	.Sy insensitive Ns \| Ns Sy mixed
	.Xc
	Indicates whether the file name matching algorithm used by the file system
	should be case-sensitive, case-insensitive, or allow a combination of both
	styles of matching.
	The default value for the
	.Sy casesensitivity
	property is
	.Sy sensitive .
	Traditionally,
	.Ux
	and POSIX file systems have case-sensitive file names.
	.Pp
	The
	.Sy mixed
	value for the
	.Sy casesensitivity
	property indicates that the file system can support requests for both
	case-sensitive and case-insensitive matching behavior.
	Currently, case-insensitive matching behavior on a file system that supports
	mixed behavior is limited to the SMB server product.
	For more information about the
	.Sy mixed
	value behavior, see the "ZFS Administration Guide".
	.It Xo
	.Sy normalization Ns = Ns Sy none Ns \| Ns Sy formC Ns \| Ns
	.Sy formD Ns \| Ns Sy formKC Ns \| Ns Sy formKD
	.Xc
	Indicates whether the file system should perform a
	.Sy unicode
	normalization of file names whenever two file names are compared, and which
	normalization algorithm should be used.
	File names are always stored unmodified, names are normalized as part of any
	comparison process.
	If this property is set to a legal value other than
	.Sy none ,
	and the
	.Sy utf8only
	property was left unspecified, the
	.Sy utf8only
	property is automatically set to
	.Sy on .
	The default value of the
	.Sy normalization
	property is
	.Sy none .
	This property cannot be changed after the file system is created.
	.It Sy utf8only Ns = Ns Sy on Ns \| Ns Sy off
	Indicates whether the file system should reject file names that include
	characters that are not present in the
	.Sy UTF-8
	character code set.
	If this property is explicitly set to
	.Sy off ,
	the normalization property must either not be explicitly set or be set to
	.Sy none .
	The default value for the
	.Sy utf8only
	property is
	.Sy off .
	This property cannot be changed after the file system is created.
	.El
	.Pp
	The
	.Sy casesensitivity ,
	.Sy normalization ,
	and
	.Sy utf8only
	properties are also new permissions that can be assigned to non-privileged users
	by using the ZFS delegated administration feature.
	.
	.Ss Temporary Mount Point Properties
	When a file system is mounted, either through
	.Xr mount 8
	for legacy mounts or the
	.Nm zfs Cm mount
	command for normal file systems, its mount options are set according to its
	properties.
	The correlation between properties and mount options is as follows:
	.Bl -tag -compact -offset Ds -width "rootcontext="
	.It Sy atime
	atime/noatime
	.It Sy canmount
	auto/noauto
	.It Sy devices
	dev/nodev
	.It Sy exec
	exec/noexec
	.It Sy readonly
	ro/rw
	.It Sy relatime
	relatime/norelatime
	.It Sy setuid
	suid/nosuid
	.It Sy xattr
	xattr/noxattr
	.It Sy nbmand
	mand/nomand
	.It Sy context Ns =
	context=
	.It Sy fscontext Ns =
	fscontext=
	.It Sy defcontext Ns =
	defcontext=
	.It Sy rootcontext Ns =
	rootcontext=
	.El
	.Pp
	In addition, these options can be set on a per-mount basis using the
	.Fl o
	option, without affecting the property that is stored on disk.
	The values specified on the command line override the values stored in the
	dataset.
	The
	.Sy nosuid
	option is an alias for
	.Sy nodevices , Ns Sy nosetuid .
	These properties are reported as
	.Qq temporary
	by the
	.Nm zfs Cm get
	command.
	If the properties are changed while the dataset is mounted, the new setting
	overrides any temporary settings.
	.
	.Ss User Properties
	In addition to the standard native properties, ZFS supports arbitrary user
	properties.
	User properties have no effect on ZFS behavior, but applications or
	administrators can use them to annotate datasets
	.Pq file systems, volumes, and snapshots .
	.Pp
	User property names must contain a colon
	.Pq Qq Sy \&:
	character to distinguish them from native properties.
	They may contain lowercase letters, numbers, and the following punctuation
	characters: colon
	.Pq Qq Sy \&: ,
	dash
	.Pq Qq Sy - ,
	period
	.Pq Qq Sy \&. ,
	and underscore
	.Pq Qq Sy _ .
	The expected convention is that the property name is divided into two portions
	such as
	.Ar module : Ns Ar property ,
	but this namespace is not enforced by ZFS.
	User property names can be at most 256 characters, and cannot begin with a dash
	.Pq Qq Sy - .
	.Pp
	When making programmatic use of user properties, it is strongly suggested to use
	a reversed DNS domain name for the
	.Ar module
	component of property names to reduce the chance that two
	independently-developed packages use the same property name for different
	purposes.
	.Pp
	The values of user properties are arbitrary strings, are always inherited, and
	are never validated.
	All of the commands that operate on properties
	.Po Nm zfs Cm list ,
	.Nm zfs Cm get ,
	.Nm zfs Cm set ,
	and so forth
	.Pc
	can be used to manipulate both native properties and user properties.
	Use the
	.Nm zfs Cm inherit
	command to clear a user property.
	If the property is not defined in any parent dataset, it is removed entirely.
	Property values are limited to 8192 bytes.
	diff --git a/sys/contrib/openzfs/man/man5/zpool-features.5 b/sys/contrib/openzfs/man/man7/zpool-features.7
	similarity index 99%
	rename from sys/contrib/openzfs/man/man5/zpool-features.5
	rename to sys/contrib/openzfs/man/man7/zpool-features.7
	index 2b4cee545e88..83ca91175370 100644
	--- a/sys/contrib/openzfs/man/man5/zpool-features.5
	+++ b/sys/contrib/openzfs/man/man7/zpool-features.7
	@@ -1,842 +1,842 @@
	.\"
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" The contents of this file are subject to the terms of the Common Development
	.\" and Distribution License (the "License"). You may not use this file except
	.\" in compliance with the License. You can obtain a copy of the license at
	.\" usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.
	.\"
	.\" See the License for the specific language governing permissions and
	.\" limitations under the License. When distributing Covered Code, include this
	.\" CDDL HEADER in each file and include the License file at
	.\" usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this
	.\" CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your
	.\" own identifying information:
	.\" Portions Copyright [yyyy] [name of copyright owner]
	.\" Copyright (c) 2019, Klara Inc.
	.\" Copyright (c) 2019, Allan Jude
	.\" Copyright (c) 2021, Colm Buckley <colm@tuatha.org>
	.\"
	.Dd May 31, 2021
	-.Dt ZPOOL-FEATURES 5
	+.Dt ZPOOL-FEATURES 7
	.Os
	.
	.Sh NAME
	.Nm zpool-features
	.Nd description of ZFS pool features
	.
	.Sh DESCRIPTION
	ZFS pool on-disk format versions are specified via "features" which replace
	the old on-disk format numbers (the last supported on-disk format number is 28).
	To enable a feature on a pool use the
	.Nm zpool Cm upgrade ,
	or set the
	.Sy feature Ns @ Ns Ar feature-name
	property to
	.Sy enabled .
	Please also see the
	.Sx Compatibility feature sets
	section for information on how sets of features may be enabled together.
	.Pp
	The pool format does not affect file system version compatibility or the ability
	to send file systems between pools.
	.Pp
	Since most features can be enabled independently of each other, the on-disk
	format of the pool is specified by the set of all features marked as
	.Sy active
	on the pool.
	If the pool was created by another software version
	this set may include unsupported features.
	.
	.Ss Identifying features
	Every feature has a GUID of the form
	.Ar com.example : Ns Ar feature-name .
	The reversed DNS name ensures that the feature's GUID is unique across all ZFS
	implementations.
	When unsupported features are encountered on a pool they will
	be identified by their GUIDs.
	Refer to the documentation for the ZFS
	implementation that created the pool for information about those features.
	.Pp
	Each supported feature also has a short name.
	By convention a feature's short name is the portion of its GUID which follows the
	.Sq \&:
	(i.e.
	.Ar com.example : Ns Ar feature-name
	would have the short name
	.Ar feature-name ) ,
	however a feature's short name may differ across ZFS implementations if
	following the convention would result in name conflicts.
	.
	.Ss Feature states
	Features can be in one of three states:
	.Bl -tag -width "disabled"
	.It Sy active
	This feature's on-disk format changes are in effect on the pool.
	Support for this feature is required to import the pool in read-write mode.
	If this feature is not read-only compatible,
	support is also required to import the pool in read-only mode
	.Pq see Sx Read-only compatibility .
	.It Sy enabled
	An administrator has marked this feature as enabled on the pool, but the
	feature's on-disk format changes have not been made yet.
	The pool can still be imported by software that does not support this feature,
	but changes may be made to the on-disk format at any time
	which will move the feature to the
	.Sy active
	state.
	Some features may support returning to the
	.Sy enabled
	state after becoming
	.Sy active .
	See feature-specific documentation for details.
	.It Sy disabled
	This feature's on-disk format changes have not been made and will not be made
	unless an administrator moves the feature to the
	.Sy enabled
	state.
	Features cannot be disabled once they have been enabled.
	.El
	.Pp
	The state of supported features is exposed through pool properties of the form
	.Sy feature Ns @ Ns Ar short-name .
	.
	.Ss Read-only compatibility
	Some features may make on-disk format changes that do not interfere with other
	software's ability to read from the pool.
	These features are referred to as
	.Dq read-only compatible .
	If all unsupported features on a pool are read-only compatible,
	the pool can be imported in read-only mode by setting the
	.Sy readonly
	property during import (see
	.Xr zpool-import 8
	for details on importing pools).
	.
	.Ss Unsupported features
	For each unsupported feature enabled on an imported pool, a pool property
	named
	.Sy unsupported Ns @ Ns Ar feature-name
	will indicate why the import was allowed despite the unsupported feature.
	Possible values for this property are:
	.Bl -tag -width "readonly"
	.It Sy inactive
	The feature is in the
	.Sy enabled
	state and therefore the pool's on-disk
	format is still compatible with software that does not support this feature.
	.It Sy readonly
	The feature is read-only compatible and the pool has been imported in
	read-only mode.
	.El
	.
	.Ss Feature dependencies
	Some features depend on other features being enabled in order to function.
	Enabling a feature will automatically enable any features it depends on.
	.
	.Ss Compatibility feature sets
	It is sometimes necessary for a pool to maintain compatibility with a
	specific on-disk format, by enabling and disabling particular features.
	The
	.Sy compatibility
	feature facilitates this by allowing feature sets to be read from text files.
	When set to
	.Sy off
	(the default), compatibility feature sets are disabled
	(i.e. all features are enabled); when set to
	.Sy legacy ,
	no features are enabled.
	When set to a comma-separated list of filenames
	(each filename may either be an absolute path, or relative to
	.Pa /etc/zfs/compatibility.d
	or
	.Pa /usr/share/zfs/compatibility.d ) ,
	the lists of requested features are read from those files,
	separated by whitespace and/or commas.
	Only features present in all files are enabled.
	.Pp
	Simple sanity checks are applied to the files:
	they must be between 1B and 16kB in size, and must end with a newline character.
	.Pp
	The requested features are applied when a pool is created using
	.Nm zpool Cm create Fl o Sy compatibility Ns = Ns Ar …
	and controls which features are enabled when using
	.Nm zpool Cm upgrade .
	.Nm zpool Cm status
	will not show a warning about disabled features which are not part
	of the requested feature set.
	.Pp
	The special value
	.Sy legacy
	prevents any features from being enabled, either via
	.Nm zpool Cm upgrade
	or
	.Nm zpool Cm set Sy feature Ns @ Ns Ar feature-name Ns = Ns Sy enabled .
	This setting also prevents pools from being upgraded to newer on-disk versions.
	This is a safety measure to prevent new features from being
	accidentally enabled, breaking compatibility.
	.Pp
	By convention, compatibility files in
	.Pa /usr/share/zfs/compatibility.d
	are provided by the distribution, and include feature sets
	supported by important versions of popular distributions, and feature
	sets commonly supported at the start of each year.
	Compatibility files in
	.Pa /etc/zfs/compatibility.d ,
	if present, will take precedence over files with the same name in
	.Pa /usr/share/zfs/compatibility.d .
	.Pp
	If an unrecognized feature is found in these files, an error message will
	be shown.
	If the unrecognized feature is in a file in
	.Pa /etc/zfs/compatibility.d ,
	this is treated as an error and processing will stop.
	If the unrecognized feature is under
	.Pa /usr/share/zfs/compatibility.d ,
	this is treated as a warning and processing will continue.
	This difference is to allow distributions to include features
	which might not be recognized by the currently-installed binaries.
	.Pp
	Compatibility files may include comments:
	any text from
	.Sq #
	to the end of the line is ignored.
	.Pp
	.Sy Example :
	.Bd -literal -compact -offset 4n
	.No example# Nm cat Pa /usr/share/zfs/compatibility.d/grub2
	# Features which are supported by GRUB2
	async_destroy
	bookmarks
	embedded_data
	empty_bpobj
	enabled_txg
	extensible_dataset
	filesystem_limits
	hole_birth
	large_blocks
	lz4_compress
	spacemap_histogram

	.No example# Nm zpool Cm create Fl o Sy compatibility Ns = Ns Ar grub2 Ar bootpool Ar vdev
	.Ed
	.Pp
	See
	.Xr zpool-create 8
	and
	.Xr zpool-upgrade 8
	for more information on how these commands are affected by feature sets.
	.
	.de feature
	.It Sy \\$2
	.Bl -tag -compact -width "READ-ONLY COMPATIBLE"
	.It GUID
	.Sy \\$1:\\$2
	.if !"\\$4"" \{\
	.It DEPENDENCIES
	\fB\\$4\fP\c
	.if !"\\$5"" , \fB\\$5\fP\c
	.if !"\\$6"" , \fB\\$6\fP\c
	.if !"\\$7"" , \fB\\$7\fP\c
	.if !"\\$8"" , \fB\\$8\fP\c
	.if !"\\$9"" , \fB\\$9\fP\c
	.\}
	.It READ-ONLY COMPATIBLE
	\\$3
	.El
	.Pp
	..
	.
	.ds instant-never \
	.No This feature becomes Sy active No as soon as it is enabled \
	and will never return to being Sy enabled .
	.
	.ds remount-upgrade \
	.No Each filesystem will be upgraded automatically when remounted, \
	or when a new file is created under that filesystem. \
	The upgrade can also be triggered on filesystems via \
	Nm zfs Cm set Sy version Ns = Ns Sy current Ar fs . \
	No The upgrade process runs in the background and may take a while to complete \
	for filesystems containing large amounts of files.
	.
	.de checksum-spiel
	When the
	.Sy \\$1
	feature is set to
	.Sy enabled ,
	the administrator can turn on the
	.Sy \\$1
	checksum on any dataset using
	.Nm zfs Cm set Sy checksum Ns = Ns Sy \\$1 Ar dset
	.Po see Xr zfs-set 8 Pc .
	This feature becomes
	.Sy active
	once a
	.Sy checksum
	property has been set to
	.Sy \\$1 ,
	and will return to being
	.Sy enabled
	once all filesystems that have ever had their checksum set to
	.Sy \\$1
	are destroyed.
	..
	.
	.Sh FEATURES
	The following features are supported on this system:
	.Bl -tag -width Ds
	.feature org.zfsonlinux allocation_classes yes
	This feature enables support for separate allocation classes.
	.Pp
	This feature becomes
	.Sy active
	when a dedicated allocation class vdev (dedup or special) is created with the
	.Nm zpool Cm create No or Nm zpool Cm add No commands .
	With device removal, it can be returned to the
	.Sy enabled
	state if all the dedicated allocation class vdevs are removed.
	.
	.feature com.delphix async_destroy yes
	Destroying a file system requires traversing all of its data in order to
	return its used space to the pool.
	Without
	.Sy async_destroy ,
	the file system is not fully removed until all space has been reclaimed.
	If the destroy operation is interrupted by a reboot or power outage,
	the next attempt to open the pool will need to complete the destroy
	operation synchronously.
	.Pp
	When
	.Sy async_destroy
	is enabled, the file system's data will be reclaimed by a background process,
	allowing the destroy operation to complete
	without traversing the entire file system.
	The background process is able to resume
	interrupted destroys after the pool has been opened, eliminating the need
	to finish interrupted destroys as part of the open operation.
	The amount of space remaining to be reclaimed by the background process
	is available through the
	.Sy freeing
	property.
	.Pp
	This feature is only
	.Sy active
	while
	.Sy freeing
	is non-zero.
	.
	.feature com.delphix bookmarks yes extensible_dataset
	This feature enables use of the
	.Nm zfs Cm bookmark
	command.
	.Pp
	This feature is
	.Sy active
	while any bookmarks exist in the pool.
	All bookmarks in the pool can be listed by running
	.Nm zfs Cm list Fl t Sy bookmark Fl r Ar poolname .
	.
	.feature com.datto bookmark_v2 no bookmark extensible_dataset
	This feature enables the creation and management of larger bookmarks which are
	needed for other features in ZFS.
	.Pp
	This feature becomes
	.Sy active
	when a v2 bookmark is created and will be returned to the
	.Sy enabled
	state when all v2 bookmarks are destroyed.
	.
	.feature com.delphix bookmark_written no bookmark extensible_dataset bookmark_v2
	This feature enables additional bookmark accounting fields, enabling the
	.Sy written Ns # Ns Ar bookmark
	property (space written since a bookmark) and estimates of
	send stream sizes for incrementals from bookmarks.
	.Pp
	This feature becomes
	.Sy active
	when a bookmark is created and will be
	returned to the
	.Sy enabled
	state when all bookmarks with these fields are destroyed.
	.
	.feature org.openzfs device_rebuild yes
	This feature enables the ability for the
	.Nm zpool Cm attach
	and
	.Nm zpool Cm replace
	commands to perform sequential reconstruction
	(instead of healing reconstruction) when resilvering.
	.Pp
	Sequential reconstruction resilvers a device in LBA order without immediately
	verifying the checksums.
	Once complete, a scrub is started, which then verifies the checksums.
	This approach allows full redundancy to be restored to the pool
	in the minimum amount of time.
	This two-phase approach will take longer than a healing resilver
	when the time to verify the checksums is included.
	However, unless there is additional pool damage,
	no checksum errors should be reported by the scrub.
	This feature is incompatible with raidz configurations.
	.
	This feature becomes
	.Sy active
	while a sequential resilver is in progress, and returns to
	.Sy enabled
	when the resilver completes.
	.
	.feature com.delphix device_removal no
	This feature enables the
	.Nm zpool Cm remove
	command to remove top-level vdevs,
	evacuating them to reduce the total size of the pool.
	.Pp
	This feature becomes
	.Sy active
	when the
	.Nm zpool Cm remove
	command is used
	on a top-level vdev, and will never return to being
	.Sy enabled .
	.
	.feature org.openzfs draid no
	This feature enables use of the
	.Sy draid
	vdev type.
	dRAID is a variant of raidz which provides integrated distributed
	hot spares that allow faster resilvering while retaining the benefits of raidz.
	Data, parity, and spare space are organized in redundancy groups
	and distributed evenly over all of the devices.
	.Pp
	This feature becomes
	.Sy active
	when creating a pool which uses the
	.Sy draid
	vdev type, or when adding a new
	.Sy draid
	vdev to an existing pool.
	.
	.feature org.illumos edonr no extensible_dataset
	This feature enables the use of the Edon-R hash algorithm for checksum,
	including for nopwrite (if compression is also enabled, an overwrite of
	a block whose checksum matches the data being written will be ignored).
	In an abundance of caution, Edon-R requires verification when used with
	dedup:
	.Nm zfs Cm set Sy dedup Ns = Ns Sy edonr , Ns Sy verify
	.Po see Xr zfs-set 8 Pc .
	.Pp
	Edon-R is a very high-performance hash algorithm that was part
	of the NIST SHA-3 competition.
	It provides extremely high hash performance (over 350% faster than SHA-256),
	but was not selected because of its unsuitability
	as a general purpose secure hash algorithm.
	This implementation utilizes the new salted checksumming functionality
	in ZFS, which means that the checksum is pre-seeded with a secret
	256-bit random key (stored on the pool) before being fed the data block
	to be checksummed.
	Thus the produced checksums are unique to a given pool,
	preventing hash collision attacks on systems with dedup.
	.Pp
	.checksum-spiel edonr
	.Pp
	.Fx does not support the Sy edonr No feature.
	.
	.feature com.delphix embedded_data no
	This feature improves the performance and compression ratio of
	highly-compressible blocks.
	Blocks whose contents can compress to 112 bytes
	or smaller can take advantage of this feature.
	.Pp
	When this feature is enabled, the contents of highly-compressible blocks are
	stored in the block "pointer" itself (a misnomer in this case, as it contains
	the compressed data, rather than a pointer to its location on disk).
	Thus the space of the block (one sector, typically 512B or 4kB) is saved,
	and no additional I/O is needed to read and write the data block.
	.
	\*[instant-never]
	.
	.feature com.delphix empty_bpobj yes
	This feature increases the performance of creating and using a large
	number of snapshots of a single filesystem or volume, and also reduces
	the disk space required.
	.Pp
	When there are many snapshots, each snapshot uses many Block Pointer
	Objects (bpobjs) to track blocks associated with that snapshot.
	However, in common use cases, most of these bpobjs are empty.
	This feature allows us to create each bpobj on-demand,
	thus eliminating the empty bpobjs.
	.Pp
	This feature is
	.Sy active
	while there are any filesystems, volumes,
	or snapshots which were created after enabling this feature.
	.
	.feature com.delphix enabled_txg yes
	Once this feature is enabled, ZFS records the transaction group number
	in which new features are enabled.
	This has no user-visible impact, but other features may depend on this feature.
	.Pp
	This feature becomes
	.Sy active
	as soon as it is enabled and will
	never return to being
	.Sy enabled .
	.
	.feature com.datto encryption no bookmark_v2 extensible_dataset
	This feature enables the creation and management of natively encrypted datasets.
	.Pp
	This feature becomes
	.Sy active
	when an encrypted dataset is created and will be returned to the
	.Sy enabled
	state when all datasets that use this feature are destroyed.
	.
	.feature com.delphix extensible_dataset no
	This feature allows more flexible use of internal ZFS data structures,
	and exists for other features to depend on.
	.Pp
	This feature will be
	.Sy active
	when the first dependent feature uses it, and will be returned to the
	.Sy enabled
	state when all datasets that use this feature are destroyed.
	.
	.feature com.joyent filesystem_limits yes extensible_dataset
	This feature enables filesystem and snapshot limits.
	These limits can be used to control how many filesystems and/or snapshots
	can be created at the point in the tree on which the limits are set.
	.Pp
	This feature is
	.Sy active
	once either of the limit properties has been set on a dataset.
	Once activated the feature is never deactivated.
	.
	.feature com.delphix hole_birth no enabled_txg
	This feature has/had bugs, the result of which is that, if you do a
	.Nm zfs Cm send Fl i
	.Pq or Fl R , No since it uses Fl i
	from an affected dataset, the receiving party will not see any checksum
	or other errors, but the resulting destination snapshot
	will not match the source.
	Its use by
	.Nm zfs Cm send Fl i
	has been disabled by default
	-.Pq see Sy send_holes_without_birth_time No in Xr zfs-module-parameters 5 .
	+.Pq see Sy send_holes_without_birth_time No in Xr zfs 4 .
	.Pp
	This feature improves performance of incremental sends
	.Pq Nm zfs Cm send Fl i
	and receives for objects with many holes.
	The most common case of hole-filled objects is zvols.
	.Pp
	An incremental send stream from snapshot
	.Sy A No to snapshot Sy B
	contains information about every block that changed between
	.Sy A No and Sy B .
	Blocks which did not change between those snapshots can be
	identified and omitted from the stream using a piece of metadata called
	the "block birth time", but birth times are not recorded for holes
	(blocks filled only with zeroes).
	Since holes created after
	.Sy A No cannot be distinguished from holes created before Sy A ,
	information about every hole in the entire filesystem or zvol
	is included in the send stream.
	.Pp
	For workloads where holes are rare this is not a problem.
	However, when incrementally replicating filesystems or zvols with many holes
	(for example a zvol formatted with another filesystem) a lot of time will
	be spent sending and receiving unnecessary information about holes that
	already exist on the receiving side.
	.Pp
	Once the
	.Sy hole_birth
	feature has been enabled the block birth times
	of all new holes will be recorded.
	Incremental sends between snapshots created after this feature is enabled
	will use this new metadata to avoid sending information about holes that
	already exist on the receiving side.
	.Pp
	\*[instant-never]
	.
	.feature org.open-zfs large_blocks no extensible_dataset
	This feature allows the record size on a dataset to be set larger than 128kB.
	.Pp
	This feature becomes
	.Sy active
	once a dataset contains a file with a block size larger than 128kB,
	and will return to being
	.Sy enabled
	once all filesystems that have ever had their recordsize larger than 128kB
	are destroyed.
	.
	.feature org.zfsonlinux large_dnode no extensible_dataset
	This feature allows the size of dnodes in a dataset to be set larger than 512B.
	.
	This feature becomes
	.Sy active
	once a dataset contains an object with a dnode larger than 512B,
	which occurs as a result of setting the
	.Sy dnodesize
	dataset property to a value other than
	.Sy legacy .
	The feature will return to being
	.Sy enabled
	once all filesystems that have ever contained a dnode larger than 512B
	are destroyed.
	Large dnodes allow more data to be stored in the bonus buffer,
	thus potentially improving performance by avoiding the use of spill blocks.
	.
	.feature com.delphix livelist yes
	This feature allows clones to be deleted faster than the traditional method
	when a large number of random/sparse writes have been made to the clone.
	All blocks allocated and freed after a clone is created are tracked by the
	the clone's livelist which is referenced during the deletion of the clone.
	The feature is activated when a clone is created and remains
	.Sy active
	until all clones have been destroyed.
	.
	.feature com.delphix log_spacemap yes com.delphix:spacemap_v2
	This feature improves performance for heavily-fragmented pools,
	especially when workloads are heavy in random-writes.
	It does so by logging all the metaslab changes on a single spacemap every TXG
	instead of scattering multiple writes to all the metaslab spacemaps.
	.Pp
	\*[instant-never]
	.
	.feature org.illumos lz4_compress no
	.Sy lz4
	is a high-performance real-time compression algorithm that
	features significantly faster compression and decompression as well as a
	higher compression ratio than the older
	.Sy lzjb
	compression.
	Typically,
	.Sy lz4
	compression is approximately 50% faster on compressible data and 200% faster
	on incompressible data than
	.Sy lzjb .
	It is also approximately 80% faster on decompression,
	while giving approximately a 10% better compression ratio.
	.Pp
	When the
	.Sy lz4_compress
	feature is set to
	.Sy enabled ,
	the administrator can turn on
	.Sy lz4
	compression on any dataset on the pool using the
	.Xr zfs-set 8
	command.
	All newly written metadata will be compressed with the
	.Sy lz4
	algorithm.
	.Pp
	\*[instant-never]
	.
	.feature com.joyent multi_vdev_crash_dump no
	This feature allows a dump device to be configured with a pool comprised
	of multiple vdevs.
	Those vdevs may be arranged in any mirrored or raidz configuration.
	.Pp
	When the
	.Sy multi_vdev_crash_dump
	feature is set to
	.Sy enabled ,
	the administrator can use
	.Xr dumpadm 1M
	to configure a dump device on a pool comprised of multiple vdevs.
	.Pp
	Under
	.Fx
	and Linux this feature is unused, but registered for compatibility.
	New pools created on these systems will have the feature
	.Sy enabled
	but will never transition to
	.Sy active ,
	as this functionality is not required for crash dump support.
	Existing pools where this feature is
	.Sy active
	can be imported.
	.
	.feature com.delphix obsolete_counts yes device_removal
	This feature is an enhancement of
	.Sy device_removal ,
	which will over time reduce the memory used to track removed devices.
	When indirect blocks are freed or remapped,
	we note that their part of the indirect mapping is "obsolete" – no longer needed.
	.Pp
	This feature becomes
	.Sy active
	when the
	.Nm zpool Cm remove
	command is used on a top-level vdev, and will never return to being
	.Sy enabled .
	.
	.feature org.zfsonlinux project_quota yes extensible_dataset
	This feature allows administrators to account the spaces and objects usage
	information against the project identifier (ID).
	.Pp
	The project ID is an object-based attribute.
	When upgrading an existing filesystem,
	objects without a project ID will be assigned a zero project ID.
	When this feature is enabled, newly created objects inherit
	their parent directories' project ID if the parent's inherit flag is set
	.Pq via Nm chattr Sy [+-]P No or Nm zfs Cm project Fl s Ns \| Ns Fl C .
	Otherwise, the new object's project ID will be zero.
	An object's project ID can be changed at any time by the owner
	(or privileged user) via
	.Nm chattr Fl p Ar prjid
	or
	.Nm zfs Cm project Fl p Ar prjid .
	.Pp
	This feature will become
	.Sy active
	as soon as it is enabled and will never return to being
	.Sy disabled .
	\*[remount-upgrade]
	.
	.feature com.delphix redaction_bookmarks no bookmarks extensible_dataset
	This feature enables the use of redacted
	.Nm zfs Cm send Ns s ,
	which create redaction bookmarks storing the list of blocks
	redacted by the send that created them.
	For more information about redacted sends, see
	.Xr zfs-send 8 .
	.
	.feature com.delphix redacted_datasets no extensible_dataset
	This feature enables the receiving of redacted
	.Nm zfs Cm send Ns
	streams. which create redacted datasets when received.
	These datasets are missing some of their blocks,
	and so cannot be safely mounted, and their contents cannot be safely read.
	For more information about redacted receives, see
	.Xr zfs-send 8 .
	.
	.feature com.datto resilver_defer yes
	This feature allows ZFS to postpone new resilvers if an existing one is already
	in progress.
	Without this feature, any new resilvers will cause the currently
	running one to be immediately restarted from the beginning.
	.Pp
	This feature becomes
	.Sy active
	once a resilver has been deferred, and returns to being
	.Sy enabled
	when the deferred resilver begins.
	.
	.feature org.illumos sha512 no extensible_dataset
	This feature enables the use of the SHA-512/256 truncated hash algorithm
	(FIPS 180-4) for checksum and dedup.
	The native 64-bit arithmetic of SHA-512 provides an approximate 50%
	performance boost over SHA-256 on 64-bit hardware
	and is thus a good minimum-change replacement candidate
	for systems where hash performance is important,
	but these systems cannot for whatever reason utilize the faster
	.Sy skein No and Sy edonr
	algorithms.
	.Pp
	.checksum-spiel sha512
	.
	.feature org.illumos skein no extensible_dataset
	This feature enables the use of the Skein hash algorithm for checksum and dedup.
	Skein is a high-performance secure hash algorithm that was a
	finalist in the NIST SHA-3 competition.
	It provides a very high security margin and high performance on 64-bit hardware
	(80% faster than SHA-256).
	This implementation also utilizes the new salted checksumming
	functionality in ZFS, which means that the checksum is pre-seeded with a
	secret 256-bit random key (stored on the pool) before being fed the data
	block to be checksummed.
	Thus the produced checksums are unique to a given pool,
	preventing hash collision attacks on systems with dedup.
	.Pp
	.checksum-spiel skein
	.
	.feature com.delphix spacemap_histogram yes
	This features allows ZFS to maintain more information about how free space
	is organized within the pool.
	If this feature is
	.Sy enabled ,
	it will be activated when a new space map object is created, or
	an existing space map is upgraded to the new format,
	and never returns back to being
	.Sy enabled .
	.
	.feature com.delphix spacemap_v2 yes
	This feature enables the use of the new space map encoding which
	consists of two words (instead of one) whenever it is advantageous.
	The new encoding allows space maps to represent large regions of
	space more efficiently on-disk while also increasing their maximum
	addressable offset.
	.Pp
	This feature becomes
	.Sy active
	once it is
	.Sy enabled ,
	and never returns back to being
	.Sy enabled .
	.
	.feature org.zfsonlinux userobj_accounting yes extensible_dataset
	This feature allows administrators to account the object usage information
	by user and group.
	.Pp
	\*[instant-never]
	\*[remount-upgrade]
	.
	.feature com.delphix zpool_checkpoint yes
	This feature enables the
	.Nm zpool Cm checkpoint
	command that can checkpoint the state of the pool
	at the time it was issued and later rewind back to it or discard it.
	.Pp
	This feature becomes
	.Sy active
	when the
	.Nm zpool Cm checkpoint
	command is used to checkpoint the pool.
	The feature will only return back to being
	.Sy enabled
	when the pool is rewound or the checkpoint has been discarded.
	.
	.feature org.freebsd zstd_compress no extensible_dataset
	.Sy zstd
	is a high-performance compression algorithm that features a
	combination of high compression ratios and high speed.
	Compared to
	.Sy gzip ,
	.Sy zstd
	offers slightly better compression at much higher speeds.
	Compared to
	.Sy lz4 ,
	.Sy zstd
	offers much better compression while being only modestly slower.
	Typically,
	.Sy zstd
	compression speed ranges from 250 to 500 MB/s per thread
	and decompression speed is over 1 GB/s per thread.
	.Pp
	When the
	.Sy zstd
	feature is set to
	.Sy enabled ,
	the administrator can turn on
	.Sy zstd
	compression of any dataset using
	.Nm zfs Cm set Sy compress Ns = Ns Sy zstd Ar dset
	.Po see Xr zfs-set 8 Pc .
	This feature becomes
	.Sy active
	once a
	.Sy compress
	property has been set to
	.Sy zstd ,
	and will return to being
	.Sy enabled
	once all filesystems that have ever had their
	.Sy compress
	property set to
	.Sy zstd
	are destroyed.
	.El
	.
	.Sh SEE ALSO
	.Xr zpool 8
	diff --git a/sys/contrib/openzfs/man/man8/zpoolconcepts.8 b/sys/contrib/openzfs/man/man7/zpoolconcepts.7
	similarity index 99%
	rename from sys/contrib/openzfs/man/man8/zpoolconcepts.8
	rename to sys/contrib/openzfs/man/man7/zpoolconcepts.7
	index 80a1885fb1cb..58132baf5025 100644
	--- a/sys/contrib/openzfs/man/man8/zpoolconcepts.8
	+++ b/sys/contrib/openzfs/man/man7/zpoolconcepts.7
	@@ -1,512 +1,512 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\"
	.Dd June 2, 2021
	-.Dt ZPOOLCONCEPTS 8
	+.Dt ZPOOLCONCEPTS 7
	.Os
	.
	.Sh NAME
	.Nm zpoolconcepts
	.Nd overview of ZFS storage pools
	.
	.Sh DESCRIPTION
	.Ss Virtual Devices (vdevs)
	A "virtual device" describes a single device or a collection of devices
	organized according to certain performance and fault characteristics.
	The following virtual devices are supported:
	.Bl -tag -width "special"
	.It Sy disk
	A block device, typically located under
	.Pa /dev .
	ZFS can use individual slices or partitions, though the recommended mode of
	operation is to use whole disks.
	A disk can be specified by a full path, or it can be a shorthand name
	.Po the relative portion of the path under
	.Pa /dev
	.Pc .
	A whole disk can be specified by omitting the slice or partition designation.
	For example,
	.Pa sda
	is equivalent to
	.Pa /dev/sda .
	When given a whole disk, ZFS automatically labels the disk, if necessary.
	.It Sy file
	A regular file.
	The use of files as a backing store is strongly discouraged.
	It is designed primarily for experimental purposes, as the fault tolerance of a
	file is only as good as the file system on which it resides.
	A file must be specified by a full path.
	.It Sy mirror
	A mirror of two or more devices.
	Data is replicated in an identical fashion across all components of a mirror.
	A mirror with
	.Em N No disks of size Em X No can hold Em X No bytes and can withstand Em N-1
	devices failing without losing data.
	.It Sy raidz , raidz1 , raidz2 , raidz3
	A variation on RAID-5 that allows for better distribution of parity and
	eliminates the RAID-5
	.Qq write hole
	.Pq in which data and parity become inconsistent after a power loss .
	Data and parity is striped across all disks within a raidz group.
	.Pp
	A raidz group can have single, double, or triple parity, meaning that the
	raidz group can sustain one, two, or three failures, respectively, without
	losing any data.
	The
	.Sy raidz1
	vdev type specifies a single-parity raidz group; the
	.Sy raidz2
	vdev type specifies a double-parity raidz group; and the
	.Sy raidz3
	vdev type specifies a triple-parity raidz group.
	The
	.Sy raidz
	vdev type is an alias for
	.Sy raidz1 .
	.Pp
	A raidz group with
	.Em N No disks of size Em X No with Em P No parity disks can hold approximately
	.Em (N-P)*X No bytes and can withstand Em P No devices failing without losing data.
	The minimum number of devices in a raidz group is one more than the number of
	parity disks.
	The recommended number is between 3 and 9 to help increase performance.
	.It Sy draid , draid1 , draid2 , draid3
	A variant of raidz that provides integrated distributed hot spares which
	allows for faster resilvering while retaining the benefits of raidz.
	A dRAID vdev is constructed from multiple internal raidz groups, each with
	.Em D No data devices and Em P No parity devices.
	These groups are distributed over all of the children in order to fully
	utilize the available disk performance.
	.Pp
	Unlike raidz, dRAID uses a fixed stripe width (padding as necessary with
	zeros) to allow fully sequential resilvering.
	This fixed stripe width significantly effects both usable capacity and IOPS.
	For example, with the default
	.Em D=8 No and Em 4kB No disk sectors the minimum allocation size is Em 32kB .
	If using compression, this relatively large allocation size can reduce the
	effective compression ratio.
	When using ZFS volumes and dRAID, the default of the
	.Sy volblocksize
	property is increased to account for the allocation size.
	If a dRAID pool will hold a significant amount of small blocks, it is
	recommended to also add a mirrored
	.Sy special
	vdev to store those blocks.
	.Pp
	In regards to I/O, performance is similar to raidz since for any read all
	.Em D No data disks must be accessed.
	Delivered random IOPS can be reasonably approximated as
	.Sy floor((N-S)/(D+P))*single_drive_IOPS .
	.Pp
	Like raidzm a dRAID can have single-, double-, or triple-parity.
	The
	.Sy draid1 ,
	.Sy draid2 ,
	and
	.Sy draid3
	types can be used to specify the parity level.
	The
	.Sy draid
	vdev type is an alias for
	.Sy draid1 .
	.Pp
	A dRAID with
	.Em N No disks of size Em X , D No data disks per redundancy group, Em P
	.No parity level, and Em S No distributed hot spares can hold approximately
	.Em (N-S)(D/(D+P))X No bytes and can withstand Em P
	devices failing without losing data.
	.It Sy draid Ns Oo Ar parity Oc Ns Oo Sy \&: Ns Ar data Ns Sy d Oc Ns Oo Sy \&: Ns Ar children Ns Sy c Oc Ns Oo Sy \&: Ns Ar spares Ns Sy s Oc
	A non-default dRAID configuration can be specified by appending one or more
	of the following optional arguments to the
	.Sy draid
	keyword:
	.Bl -tag -compact -width "children"
	.It Ar parity
	The parity level (1-3).
	.It Ar data
	The number of data devices per redundancy group.
	In general, a smaller value of
	.Em D No will increase IOPS, improve the compression ratio,
	and speed up resilvering at the expense of total usable capacity.
	Defaults to
	.Em 8 , No unless Em N-P-S No is less than Em 8 .
	.It Ar children
	The expected number of children.
	Useful as a cross-check when listing a large number of devices.
	An error is returned when the provided number of children differs.
	.It Ar spares
	The number of distributed hot spares.
	Defaults to zero.
	.El
	.It Sy spare
	A pseudo-vdev which keeps track of available hot spares for a pool.
	For more information, see the
	.Sx Hot Spares
	section.
	.It Sy log
	A separate intent log device.
	If more than one log device is specified, then writes are load-balanced between
	devices.
	Log devices can be mirrored.
	However, raidz vdev types are not supported for the intent log.
	For more information, see the
	.Sx Intent Log
	section.
	.It Sy dedup
	A device dedicated solely for deduplication tables.
	The redundancy of this device should match the redundancy of the other normal
	devices in the pool.
	If more than one dedup device is specified, then
	allocations are load-balanced between those devices.
	.It Sy special
	A device dedicated solely for allocating various kinds of internal metadata,
	and optionally small file blocks.
	The redundancy of this device should match the redundancy of the other normal
	devices in the pool.
	If more than one special device is specified, then
	allocations are load-balanced between those devices.
	.Pp
	For more information on special allocations, see the
	.Sx Special Allocation Class
	section.
	.It Sy cache
	A device used to cache storage pool data.
	A cache device cannot be configured as a mirror or raidz group.
	For more information, see the
	.Sx Cache Devices
	section.
	.El
	.Pp
	Virtual devices cannot be nested, so a mirror or raidz virtual device can only
	contain files or disks.
	Mirrors of mirrors
	.Pq or other combinations
	are not allowed.
	.Pp
	A pool can have any number of virtual devices at the top of the configuration
	.Po known as
	.Qq root vdevs
	.Pc .
	Data is dynamically distributed across all top-level devices to balance data
	among devices.
	As new virtual devices are added, ZFS automatically places data on the newly
	available devices.
	.Pp
	Virtual devices are specified one at a time on the command line,
	separated by whitespace.
	Keywords like
	.Sy mirror No and Sy raidz
	are used to distinguish where a group ends and another begins.
	For example, the following creates a pool with two root vdevs,
	each a mirror of two disks:
	.Dl # Nm zpool Cm create Ar mypool Sy mirror Ar sda sdb Sy mirror Ar sdc sdd
	.
	.Ss Device Failure and Recovery
	ZFS supports a rich set of mechanisms for handling device failure and data
	corruption.
	All metadata and data is checksummed, and ZFS automatically repairs bad data
	from a good copy when corruption is detected.
	.Pp
	In order to take advantage of these features, a pool must make use of some form
	of redundancy, using either mirrored or raidz groups.
	While ZFS supports running in a non-redundant configuration, where each root
	vdev is simply a disk or file, this is strongly discouraged.
	A single case of bit corruption can render some or all of your data unavailable.
	.Pp
	A pool's health status is described by one of three states:
	.Sy online , degraded , No or Sy faulted .
	An online pool has all devices operating normally.
	A degraded pool is one in which one or more devices have failed, but the data is
	still available due to a redundant configuration.
	A faulted pool has corrupted metadata, or one or more faulted devices, and
	insufficient replicas to continue functioning.
	.Pp
	The health of the top-level vdev, such as a mirror or raidz device,
	is potentially impacted by the state of its associated vdevs,
	or component devices.
	A top-level vdev or component device is in one of the following states:
	.Bl -tag -width "DEGRADED"
	.It Sy DEGRADED
	One or more top-level vdevs is in the degraded state because one or more
	component devices are offline.
	Sufficient replicas exist to continue functioning.
	.Pp
	One or more component devices is in the degraded or faulted state, but
	sufficient replicas exist to continue functioning.
	The underlying conditions are as follows:
	.Bl -bullet -compact
	.It
	The number of checksum errors exceeds acceptable levels and the device is
	degraded as an indication that something may be wrong.
	ZFS continues to use the device as necessary.
	.It
	The number of I/O errors exceeds acceptable levels.
	The device could not be marked as faulted because there are insufficient
	replicas to continue functioning.
	.El
	.It Sy FAULTED
	One or more top-level vdevs is in the faulted state because one or more
	component devices are offline.
	Insufficient replicas exist to continue functioning.
	.Pp
	One or more component devices is in the faulted state, and insufficient
	replicas exist to continue functioning.
	The underlying conditions are as follows:
	.Bl -bullet -compact
	.It
	The device could be opened, but the contents did not match expected values.
	.It
	The number of I/O errors exceeds acceptable levels and the device is faulted to
	prevent further use of the device.
	.El
	.It Sy OFFLINE
	The device was explicitly taken offline by the
	.Nm zpool Cm offline
	command.
	.It Sy ONLINE
	The device is online and functioning.
	.It Sy REMOVED
	The device was physically removed while the system was running.
	Device removal detection is hardware-dependent and may not be supported on all
	platforms.
	.It Sy UNAVAIL
	The device could not be opened.
	If a pool is imported when a device was unavailable, then the device will be
	identified by a unique identifier instead of its path since the path was never
	correct in the first place.
	.El
	.Pp
	Checksum errors represent events where a disk returned data that was expected
	to be correct, but was not.
	In other words, these are instances of silent data corruption.
	The checksum errors are reported in
	.Nm zpool Cm status
	and
	.Nm zpool Cm events .
	When a block is stored redundantly, a damaged block may be reconstructed
	(e.g. from raidz parity or a mirrored copy).
	In this case, ZFS reports the checksum error against the disks that contained
	damaged data.
	If a block is unable to be reconstructed (e.g. due to 3 disks being damaged
	in a raidz2 group), it is not possible to determine which disks were silently
	corrupted.
	In this case, checksum errors are reported for all disks on which the block
	is stored.
	.Pp
	If a device is removed and later re-attached to the system,
	ZFS attempts online the device automatically.
	Device attachment detection is hardware-dependent
	and might not be supported on all platforms.
	.
	.Ss Hot Spares
	ZFS allows devices to be associated with pools as
	.Qq hot spares .
	These devices are not actively used in the pool, but when an active device
	fails, it is automatically replaced by a hot spare.
	To create a pool with hot spares, specify a
	.Sy spare
	vdev with any number of devices.
	For example,
	.Dl # Nm zpool Cm create Ar pool Sy mirror Ar sda sdb Sy spare Ar sdc sdd
	.Pp
	Spares can be shared across multiple pools, and can be added with the
	.Nm zpool Cm add
	command and removed with the
	.Nm zpool Cm remove
	command.
	Once a spare replacement is initiated, a new
	.Sy spare
	vdev is created within the configuration that will remain there until the
	original device is replaced.
	At this point, the hot spare becomes available again if another device fails.
	.Pp
	If a pool has a shared spare that is currently being used, the pool can not be
	exported since other pools may use this shared spare, which may lead to
	potential data corruption.
	.Pp
	Shared spares add some risk.
	If the pools are imported on different hosts,
	and both pools suffer a device failure at the same time,
	both could attempt to use the spare at the same time.
	This may not be detected, resulting in data corruption.
	.Pp
	An in-progress spare replacement can be cancelled by detaching the hot spare.
	If the original faulted device is detached, then the hot spare assumes its
	place in the configuration, and is removed from the spare list of all active
	pools.
	.Pp
	The
	.Sy draid
	vdev type provides distributed hot spares.
	These hot spares are named after the dRAID vdev they're a part of
	.Po Sy draid1 Ns - Ns Ar 2 Ns - Ns Ar 3 No specifies spare Ar 3 No of vdev Ar 2 ,
	.No which is a single parity dRAID Pc
	and may only be used by that dRAID vdev.
	Otherwise, they behave the same as normal hot spares.
	.Pp
	Spares cannot replace log devices.
	.
	.Ss Intent Log
	The ZFS Intent Log (ZIL) satisfies POSIX requirements for synchronous
	transactions.
	For instance, databases often require their transactions to be on stable storage
	devices when returning from a system call.
	NFS and other applications can also use
	.Xr fsync 2
	to ensure data stability.
	By default, the intent log is allocated from blocks within the main pool.
	However, it might be possible to get better performance using separate intent
	log devices such as NVRAM or a dedicated disk.
	For example:
	.Dl # Nm zpool Cm create Ar pool sda sdb Sy log Ar sdc
	.Pp
	Multiple log devices can also be specified, and they can be mirrored.
	See the
	.Sx EXAMPLES
	section for an example of mirroring multiple log devices.
	.Pp
	Log devices can be added, replaced, attached, detached and removed.
	In addition, log devices are imported and exported as part of the pool
	that contains them.
	Mirrored devices can be removed by specifying the top-level mirror vdev.
	.
	.Ss Cache Devices
	Devices can be added to a storage pool as
	.Qq cache devices .
	These devices provide an additional layer of caching between main memory and
	disk.
	For read-heavy workloads, where the working set size is much larger than what
	can be cached in main memory, using cache devices allows much more of this
	working set to be served from low latency media.
	Using cache devices provides the greatest performance improvement for random
	read-workloads of mostly static content.
	.Pp
	To create a pool with cache devices, specify a
	.Sy cache
	vdev with any number of devices.
	For example:
	.Dl # Nm zpool Cm create Ar pool sda sdb Sy cache Ar sdc sdd
	.Pp
	Cache devices cannot be mirrored or part of a raidz configuration.
	If a read error is encountered on a cache device, that read I/O is reissued to
	the original storage pool device, which might be part of a mirrored or raidz
	configuration.
	.Pp
	The content of the cache devices is persistent across reboots and restored
	asynchronously when importing the pool in L2ARC (persistent L2ARC).
	This can be disabled by setting
	.Sy l2arc_rebuild_enabled Ns = Ns Sy 0 .
	For cache devices smaller than
	.Em 1GB ,
	we do not write the metadata structures
	required for rebuilding the L2ARC in order not to waste space.
	This can be changed with
	.Sy l2arc_rebuild_blocks_min_l2size .
	The cache device header
	.Pq Em 512B
	is updated even if no metadata structures are written.
	Setting
	.Sy l2arc_headroom Ns = Ns Sy 0
	will result in scanning the full-length ARC lists for cacheable content to be
	written in L2ARC (persistent ARC).
	If a cache device is added with
	.Nm zpool Cm add
	its label and header will be overwritten and its contents are not going to be
	restored in L2ARC, even if the device was previously part of the pool.
	If a cache device is onlined with
	.Nm zpool Cm online
	its contents will be restored in L2ARC.
	This is useful in case of memory pressure
	where the contents of the cache device are not fully restored in L2ARC.
	The user can off- and online the cache device when there is less memory pressure
	in order to fully restore its contents to L2ARC.
	.
	.Ss Pool checkpoint
	Before starting critical procedures that include destructive actions
	.Pq like Nm zfs Cm destroy ,
	an administrator can checkpoint the pool's state and in the case of a
	mistake or failure, rewind the entire pool back to the checkpoint.
	Otherwise, the checkpoint can be discarded when the procedure has completed
	successfully.
	.Pp
	A pool checkpoint can be thought of as a pool-wide snapshot and should be used
	with care as it contains every part of the pool's state, from properties to vdev
	configuration.
	Thus, certain operations are not allowed while a pool has a checkpoint.
	Specifically, vdev removal/attach/detach, mirror splitting, and
	changing the pool's GUID.
	Adding a new vdev is supported, but in the case of a rewind it will have to be
	added again.
	Finally, users of this feature should keep in mind that scrubs in a pool that
	has a checkpoint do not repair checkpointed data.
	.Pp
	To create a checkpoint for a pool:
	.Dl # Nm zpool Cm checkpoint Ar pool
	.Pp
	To later rewind to its checkpointed state, you need to first export it and
	then rewind it during import:
	.Dl # Nm zpool Cm export Ar pool
	.Dl # Nm zpool Cm import Fl -rewind-to-checkpoint Ar pool
	.Pp
	To discard the checkpoint from a pool:
	.Dl # Nm zpool Cm checkpoint Fl d Ar pool
	.Pp
	Dataset reservations (controlled by the
	.Sy reservation No and Sy refreservation
	properties) may be unenforceable while a checkpoint exists, because the
	checkpoint is allowed to consume the dataset's reservation.
	Finally, data that is part of the checkpoint but has been freed in the
	current state of the pool won't be scanned during a scrub.
	.
	.Ss Special Allocation Class
	Allocations in the special class are dedicated to specific block types.
	By default this includes all metadata, the indirect blocks of user data, and
	any deduplication tables.
	The class can also be provisioned to accept small file blocks.
	.Pp
	A pool must always have at least one normal
	.Pq non- Ns Sy dedup Ns /- Ns Sy special
	vdev before
	other devices can be assigned to the special class.
	If the
	.Sy special
	class becomes full, then allocations intended for it
	will spill back into the normal class.
	.Pp
	Deduplication tables can be excluded from the special class by unsetting the
	.Sy zfs_ddt_data_is_special
	ZFS module parameter.
	.Pp
	Inclusion of small file blocks in the special class is opt-in.
	Each dataset can control the size of small file blocks allowed
	in the special class by setting the
	.Sy special_small_blocks
	property to nonzero.
	See
	-.Xr zfsprops 8
	+.Xr zfsprops 7
	for more info on this property.
	diff --git a/sys/contrib/openzfs/man/man8/zpoolprops.8 b/sys/contrib/openzfs/man/man7/zpoolprops.7
	similarity index 98%
	rename from sys/contrib/openzfs/man/man8/zpoolprops.8
	rename to sys/contrib/openzfs/man/man7/zpoolprops.7
	index 050a0507288e..513f02e0314f 100644
	--- a/sys/contrib/openzfs/man/man8/zpoolprops.8
	+++ b/sys/contrib/openzfs/man/man7/zpoolprops.7
	@@ -1,412 +1,412 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\" Copyright (c) 2021, Colm Buckley <colm@tuatha.org>
	.\"
	.Dd May 27, 2021
	-.Dt ZPOOLPROPS 8
	+.Dt ZPOOLPROPS 7
	.Os
	.
	.Sh NAME
	.Nm zpoolprops
	.Nd properties of ZFS storage pools
	.
	.Sh DESCRIPTION
	Each pool has several properties associated with it.
	Some properties are read-only statistics while others are configurable and
	change the behavior of the pool.
	.Pp
	The following are read-only properties:
	.Bl -tag -width "unsupported@guid"
	.It Cm allocated
	Amount of storage used within the pool.
	See
	.Sy fragmentation
	and
	.Sy free
	for more information.
	.It Sy capacity
	Percentage of pool space used.
	This property can also be referred to by its shortened column name,
	.Sy cap .
	.It Sy expandsize
	Amount of uninitialized space within the pool or device that can be used to
	increase the total capacity of the pool.
	On whole-disk vdevs, this is the space beyond the end of the GPT –
	typically occurring when a LUN is dynamically expanded
	or a disk replaced with a larger one.
	On partition vdevs, this is the space appended to the partition after it was
	added to the pool – most likely by resizing it in-place.
	The space can be claimed for the pool by bringing it online with
	.Sy autoexpand=on
	or using
	.Nm zpool Cm online Fl e .
	.It Sy fragmentation
	The amount of fragmentation in the pool.
	As the amount of space
	.Sy allocated
	increases, it becomes more difficult to locate
	.Sy free
	space.
	This may result in lower write performance compared to pools with more
	unfragmented free space.
	.It Sy free
	The amount of free space available in the pool.
	By contrast, the
	.Xr zfs 8
	.Sy available
	property describes how much new data can be written to ZFS filesystems/volumes.
	The zpool
	.Sy free
	property is not generally useful for this purpose, and can be substantially more than the zfs
	.Sy available
	space.
	This discrepancy is due to several factors, including raidz parity;
	zfs reservation, quota, refreservation, and refquota properties; and space set aside by
	.Sy spa_slop_shift
	(see
	-.Xr zfs-module-parameters 5
	+.Xr zfs 4
	for more information).
	.It Sy freeing
	After a file system or snapshot is destroyed, the space it was using is
	returned to the pool asynchronously.
	.Sy freeing
	is the amount of space remaining to be reclaimed.
	Over time
	.Sy freeing
	will decrease while
	.Sy free
	increases.
	.It Sy health
	The current health of the pool.
	Health can be one of
	.Sy ONLINE , DEGRADED , FAULTED , OFFLINE, REMOVED , UNAVAIL .
	.It Sy guid
	A unique identifier for the pool.
	.It Sy load_guid
	A unique identifier for the pool.
	Unlike the
	.Sy guid
	property, this identifier is generated every time we load the pool (i.e. does
	not persist across imports/exports) and never changes while the pool is loaded
	(even if a
	.Sy reguid
	operation takes place).
	.It Sy size
	Total size of the storage pool.
	.It Sy unsupported@ Ns Em guid
	Information about unsupported features that are enabled on the pool.
	See
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	for details.
	.El
	.Pp
	The space usage properties report actual physical space available to the
	storage pool.
	The physical space can be different from the total amount of space that any
	contained datasets can actually use.
	The amount of space used in a raidz configuration depends on the characteristics
	of the data being written.
	In addition, ZFS reserves some space for internal accounting that the
	.Xr zfs 8
	command takes into account, but the
	.Nm
	command does not.
	For non-full pools of a reasonable size, these effects should be invisible.
	For small pools, or pools that are close to being completely full, these
	discrepancies may become more noticeable.
	.Pp
	The following property can be set at creation time and import time:
	.Bl -tag -width Ds
	.It Sy altroot
	Alternate root directory.
	If set, this directory is prepended to any mount points within the pool.
	This can be used when examining an unknown pool where the mount points cannot be
	trusted, or in an alternate boot environment, where the typical paths are not
	valid.
	.Sy altroot
	is not a persistent property.
	It is valid only while the system is up.
	Setting
	.Sy altroot
	defaults to using
	.Sy cachefile Ns = Ns Sy none ,
	though this may be overridden using an explicit setting.
	.El
	.Pp
	The following property can be set only at import time:
	.Bl -tag -width Ds
	.It Sy readonly Ns = Ns Sy on Ns \| Ns Sy off
	If set to
	.Sy on ,
	the pool will be imported in read-only mode.
	This property can also be referred to by its shortened column name,
	.Sy rdonly .
	.El
	.Pp
	The following properties can be set at creation time and import time, and later
	changed with the
	.Nm zpool Cm set
	command:
	.Bl -tag -width Ds
	.It Sy ashift Ns = Ns Sy ashift
	Pool sector size exponent, to the power of
	.Sy 2
	(internally referred to as
	.Sy ashift ) .
	Values from 9 to 16, inclusive, are valid; also, the
	value 0 (the default) means to auto-detect using the kernel's block
	layer and a ZFS internal exception list.
	I/O operations will be aligned to the specified size boundaries.
	Additionally, the minimum (disk)
	write size will be set to the specified size, so this represents a
	space vs. performance trade-off.
	For optimal performance, the pool sector size should be greater than
	or equal to the sector size of the underlying disks.
	The typical case for setting this property is when
	performance is important and the underlying disks use 4KiB sectors but
	report 512B sectors to the OS (for compatibility reasons); in that
	case, set
	.Sy ashift Ns = Ns Sy 12
	(which is
	.Sy 1<<12 No = Sy 4096 ) .
	When set, this property is
	used as the default hint value in subsequent vdev operations (add,
	attach and replace).
	Changing this value will not modify any existing
	vdev, not even on disk replacement; however it can be used, for
	instance, to replace a dying 512B sectors disk with a newer 4KiB
	sectors device: this will probably result in bad performance but at the
	same time could prevent loss of data.
	.It Sy autoexpand Ns = Ns Sy on Ns \| Ns Sy off
	Controls automatic pool expansion when the underlying LUN is grown.
	If set to
	.Sy on ,
	the pool will be resized according to the size of the expanded device.
	If the device is part of a mirror or raidz then all devices within that
	mirror/raidz group must be expanded before the new space is made available to
	the pool.
	The default behavior is
	.Sy off .
	This property can also be referred to by its shortened column name,
	.Sy expand .
	.It Sy autoreplace Ns = Ns Sy on Ns \| Ns Sy off
	Controls automatic device replacement.
	If set to
	.Sy off ,
	device replacement must be initiated by the administrator by using the
	.Nm zpool Cm replace
	command.
	If set to
	.Sy on ,
	any new device, found in the same physical location as a device that previously
	belonged to the pool, is automatically formatted and replaced.
	The default behavior is
	.Sy off .
	This property can also be referred to by its shortened column name,
	.Sy replace .
	Autoreplace can also be used with virtual disks (like device
	mapper) provided that you use the /dev/disk/by-vdev paths setup by
	vdev_id.conf.
	See the
	.Xr vdev_id 8
	manual page for more details.
	Autoreplace and autoonline require the ZFS Event Daemon be configured and
	running.
	See the
	.Xr zed 8
	manual page for more details.
	.It Sy autotrim Ns = Ns Sy on Ns \| Ns Sy off
	When set to
	.Sy on
	space which has been recently freed, and is no longer allocated by the pool,
	will be periodically trimmed.
	This allows block device vdevs which support
	BLKDISCARD, such as SSDs, or file vdevs on which the underlying file system
	supports hole-punching, to reclaim unused blocks.
	The default value for this property is
	.Sy off .
	.Pp
	Automatic TRIM does not immediately reclaim blocks after a free.
	Instead, it will optimistically delay allowing smaller ranges to be aggregated
	into a few larger ones.
	These can then be issued more efficiently to the storage.
	TRIM on L2ARC devices is enabled by setting
	.Sy l2arc_trim_ahead > 0 .
	.Pp
	Be aware that automatic trimming of recently freed data blocks can put
	significant stress on the underlying storage devices.
	This will vary depending of how well the specific device handles these commands.
	For lower-end devices it is often possible to achieve most of the benefits
	of automatic trimming by running an on-demand (manual) TRIM periodically
	using the
	.Nm zpool Cm trim
	command.
	.It Sy bootfs Ns = Ns Sy (unset) Ns \| Ns Ar pool Ns Op / Ns Ar dataset
	Identifies the default bootable dataset for the root pool.
	This property is expected to be set mainly by the installation and upgrade programs.
	Not all Linux distribution boot processes use the bootfs property.
	.It Sy cachefile Ns = Ns Ar path Ns \| Ns Sy none
	Controls the location of where the pool configuration is cached.
	Discovering all pools on system startup requires a cached copy of the
	configuration data that is stored on the root file system.
	All pools in this cache are automatically imported when the system boots.
	Some environments, such as install and clustering, need to cache this
	information in a different location so that pools are not automatically
	imported.
	Setting this property caches the pool configuration in a different location that
	can later be imported with
	.Nm zpool Cm import Fl c .
	Setting it to the value
	.Sy none
	creates a temporary pool that is never cached, and the
	.Qq
	.Pq empty string
	uses the default location.
	.Pp
	Multiple pools can share the same cache file.
	Because the kernel destroys and recreates this file when pools are added and
	removed, care should be taken when attempting to access this file.
	When the last pool using a
	.Sy cachefile
	is exported or destroyed, the file will be empty.
	.It Sy comment Ns = Ns Ar text
	A text string consisting of printable ASCII characters that will be stored
	such that it is available even if the pool becomes faulted.
	An administrator can provide additional information about a pool using this
	property.
	.It Sy compatibility Ns = Ns Sy off Ns \| Ns Sy legacy Ns \| Ns Ar file Ns Oo , Ns Ar file Oc Ns …
	Specifies that the pool maintain compatibility with specific feature sets.
	When set to
	.Sy off
	(or unset) compatibility is disabled (all features may be enabled); when set to
	.Sy legacy Ns
	no features may be enabled.
	When set to a comma-separated list of filenames
	(each filename may either be an absolute path, or relative to
	.Pa /etc/zfs/compatibility.d
	or
	.Pa /usr/share/zfs/compatibility.d )
	the lists of requested features are read from those files, separated by
	whitespace and/or commas.
	Only features present in all files may be enabled.
	.Pp
	See
	-.Xr zpool-features 5 ,
	+.Xr zpool-features 7 ,
	.Xr zpool-create 8
	and
	.Xr zpool-upgrade 8
	for more information on the operation of compatibility feature sets.
	.It Sy dedupditto Ns = Ns Ar number
	This property is deprecated and no longer has any effect.
	.It Sy delegation Ns = Ns Sy on Ns \| Ns Sy off
	Controls whether a non-privileged user is granted access based on the dataset
	permissions defined on the dataset.
	See
	.Xr zfs 8
	for more information on ZFS delegated administration.
	.It Sy failmode Ns = Ns Sy wait Ns \| Ns Sy continue Ns \| Ns Sy panic
	Controls the system behavior in the event of catastrophic pool failure.
	This condition is typically a result of a loss of connectivity to the underlying
	storage device(s) or a failure of all devices within the pool.
	The behavior of such an event is determined as follows:
	.Bl -tag -width "continue"
	.It Sy wait
	Blocks all I/O access until the device connectivity is recovered and the errors
	are cleared.
	This is the default behavior.
	.It Sy continue
	Returns
	.Er EIO
	to any new write I/O requests but allows reads to any of the remaining healthy
	devices.
	Any write requests that have yet to be committed to disk would be blocked.
	.It Sy panic
	Prints out a message to the console and generates a system crash dump.
	.El
	.It Sy feature@ Ns Ar feature_name Ns = Ns Sy enabled
	The value of this property is the current state of
	.Ar feature_name .
	The only valid value when setting this property is
	.Sy enabled
	which moves
	.Ar feature_name
	to the enabled state.
	See
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	for details on feature states.
	.It Sy listsnapshots Ns = Ns Sy on Ns \| Ns Sy off
	Controls whether information about snapshots associated with this pool is
	output when
	.Nm zfs Cm list
	is run without the
	.Fl t
	option.
	The default value is
	.Sy off .
	This property can also be referred to by its shortened name,
	.Sy listsnaps .
	.It Sy multihost Ns = Ns Sy on Ns \| Ns Sy off
	Controls whether a pool activity check should be performed during
	.Nm zpool Cm import .
	When a pool is determined to be active it cannot be imported, even with the
	.Fl f
	option.
	This property is intended to be used in failover configurations
	where multiple hosts have access to a pool on shared storage.
	.Pp
	Multihost provides protection on import only.
	It does not protect against an
	individual device being used in multiple pools, regardless of the type of vdev.
	See the discussion under
	.Nm zpool Cm create .
	.Pp
	When this property is on, periodic writes to storage occur to show the pool is
	in use.
	See
	.Sy zfs_multihost_interval
	in the
	-.Xr zfs-module-parameters 5
	+.Xr zfs 4
	manual page.
	In order to enable this property each host must set a unique hostid.
	See
	.Xr genhostid 1
	.Xr zgenhostid 8
	-.Xr spl-module-parameters 5
	+.Xr spl 4
	for additional details.
	The default value is
	.Sy off .
	.It Sy version Ns = Ns Ar version
	The current on-disk version of the pool.
	This can be increased, but never decreased.
	The preferred method of updating pools is with the
	.Nm zpool Cm upgrade
	command, though this property can be used when a specific version is needed for
	backwards compatibility.
	Once feature flags are enabled on a pool this property will no longer have a
	value.
	.El
	diff --git a/sys/contrib/openzfs/man/man8/Makefile.am b/sys/contrib/openzfs/man/man8/Makefile.am
	deleted file mode 100644
	index 602645180beb..000000000000
	--- a/sys/contrib/openzfs/man/man8/Makefile.am
	+++ /dev/null
	@@ -1,102 +0,0 @@
	-include $(top_srcdir)/config/Substfiles.am
	-
	-dist_man_MANS = \
	- fsck.zfs.8 \
	- mount.zfs.8 \
	- vdev_id.8 \
	- zdb.8 \
	- zfs.8 \
	- zfsconcepts.8 \
	- zfsprops.8 \
	- zfs-allow.8 \
	- zfs-bookmark.8 \
	- zfs-change-key.8 \
	- zfs-clone.8 \
	- zfs-create.8 \
	- zfs-destroy.8 \
	- zfs-diff.8 \
	- zfs-get.8 \
	- zfs-groupspace.8 \
	- zfs-hold.8 \
	- zfs-inherit.8 \
	- zfs-jail.8 \
	- zfs-list.8 \
	- zfs-load-key.8 \
	- zfs-mount.8 \
	- zfs-program.8 \
	- zfs-project.8 \
	- zfs-projectspace.8 \
	- zfs-promote.8 \
	- zfs-receive.8 \
	- zfs-recv.8 \
	- zfs-redact.8 \
	- zfs-release.8 \
	- zfs-rename.8 \
	- zfs-rollback.8 \
	- zfs-send.8 \
	- zfs-set.8 \
	- zfs-share.8 \
	- zfs-snapshot.8 \
	- zfs-unallow.8 \
	- zfs-unjail.8 \
	- zfs-unload-key.8 \
	- zfs-unmount.8 \
	- zfs-upgrade.8 \
	- zfs-userspace.8 \
	- zfs-wait.8 \
	- zfs_ids_to_path.8 \
	- zgenhostid.8 \
	- zinject.8 \
	- zpool.8 \
	- zpoolconcepts.8 \
	- zpoolprops.8 \
	- zpool-add.8 \
	- zpool-attach.8 \
	- zpool-checkpoint.8 \
	- zpool-clear.8 \
	- zpool-create.8 \
	- zpool-destroy.8 \
	- zpool-detach.8 \
	- zpool-events.8 \
	- zpool-export.8 \
	- zpool-get.8 \
	- zpool-history.8 \
	- zpool-import.8 \
	- zpool-initialize.8 \
	- zpool-iostat.8 \
	- zpool-labelclear.8 \
	- zpool-list.8 \
	- zpool-offline.8 \
	- zpool-online.8 \
	- zpool-reguid.8 \
	- zpool-remove.8 \
	- zpool-reopen.8 \
	- zpool-replace.8 \
	- zpool-resilver.8 \
	- zpool-scrub.8 \
	- zpool-set.8 \
	- zpool-split.8 \
	- zpool-status.8 \
	- zpool-sync.8 \
	- zpool-trim.8 \
	- zpool-upgrade.8 \
	- zpool-wait.8 \
	- zstream.8 \
	- zstreamdump.8 \
	- zpool_influxdb.8
	-
	-nodist_man_MANS = \
	- zed.8 \
	- zfs-mount-generator.8
	-
	-SUBSTFILES += $(nodist_man_MANS)
	-
	-if BUILD_LINUX
	-# The man pager in most Linux distros defaults to BSD instead of Linux
	-# when .Os is blank, but leaving it blank makes things a lot easier on
	-# FreeBSD when OpenZFS is vendored in the base system.
	-install-data-hook:
	- cd $(DESTDIR)$(mandir)/man8; \
	- $(SED) ${ac_inplace} -e 's/^\.Os$$/.Os Linux/' \
	- $(dist_man_MANS) $(nodist_man_MANS)
	-endif
	diff --git a/sys/contrib/openzfs/man/man8/fsck.zfs.8 b/sys/contrib/openzfs/man/man8/fsck.zfs.8
	index b88dd847b1bb..0ce7576ebe63 100644
	--- a/sys/contrib/openzfs/man/man8/fsck.zfs.8
	+++ b/sys/contrib/openzfs/man/man8/fsck.zfs.8
	@@ -1,73 +1,77 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright 2013 Darik Horn <dajhorn@vanadac.com>. All rights reserved.
	.\"
	.Dd May 26, 2021
	.Dt FSCK.ZFS 8
	.Os
	.
	.Sh NAME
	.Nm fsck.zfs
	.Nd dummy ZFS filesystem checker
	.Sh SYNOPSIS
	.Nm
	.Op Ar options
	.Ar dataset Ns No …
	.
	.Sh DESCRIPTION
	.Nm
	is a thin shell wrapper that at most checks the status of a dataset's container pool.
	It is installed by OpenZFS because some Linux
	distributions expect a fsck helper for all filesystems.
	.Pp
	If more than one
	.Ar dataset
	is specified, each is checked in turn and the results binary-ored.
	.
	.Sh OPTIONS
	Ignored.
	.
	.Sh NOTES
	ZFS datasets are checked by running
	.Nm zpool Cm scrub
	on the containing pool.
	An individual ZFS dataset is never checked independently of its pool,
	which is unlike a regular filesystem.
	.Pp
	However, the
	.Xr fsck 8
	interface still allows it to communicate some errors: if the
	.Ar dataset
	is in a degraded pool, then
	.Nm
	-will return exit code 4 to indicate an uncorrected filesystem error.
	+will return exit code
	+.Sy 4
	+to indicate an uncorrected filesystem error.
	.Pp
	Similarly, if the
	.Ar dataset
	is in a faulted pool and has a legacy
	.Pa /etc/fstab
	record, then
	.Nm
	-will return exit code 8 to indicate a fatal operational error.
	+will return exit code
	+.Sy 8
	+to indicate a fatal operational error.
	.Sh SEE ALSO
	.Xr fstab 5 ,
	.Xr fsck 8 ,
	.Xr zpool-scrub 8
	diff --git a/sys/contrib/openzfs/man/man8/mount.zfs.8 b/sys/contrib/openzfs/man/man8/mount.zfs.8
	index 5d36dbdb1692..2101f70cd595 100644
	--- a/sys/contrib/openzfs/man/man8/mount.zfs.8
	+++ b/sys/contrib/openzfs/man/man8/mount.zfs.8
	@@ -1,92 +1,92 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright 2013 Darik Horn <dajhorn@vanadac.com>. All rights reserved.
	.\"
	.Dd May 24, 2021
	.Dt MOUNT.ZFS 8
	.Os
	.
	.Sh NAME
	.Nm mount.zfs
	.Nd mount ZFS filesystem
	.Sh SYNOPSIS
	.Nm
	.Op Fl sfnvh
	.Op Fl o Ar options
	.Ar dataset
	.Ar mountpoint
	.
	.Sh DESCRIPTION
	The
	.Nm
	helper is used by
	.Xr mount 8
	to mount filesystem snapshots and
	.Sy mountpoint= Ns Ar legacy
	ZFS filesystems, as well as by
	.Xr zfs 8
	when the
	.Sy ZFS_MOUNT_HELPER
	environment variable is not set.
	Users should should invoke either
	.Xr mount 8
	or
	.Xr zfs 8
	in most cases.
	.Pp
	.Ar options
	are handled according to the
	.Em Temporary Mount Point Properties
	section in
	-.Xr zfsprops 8 ,
	+.Xr zfsprops 7 ,
	except for those described below.
	.Pp
	If
	.Pa /etc/mtab
	is a regular file and
	.Fl n
	was not specified, it will be updated via libmount.
	.
	.Sh OPTIONS
	.Bl -tag -width "-o xa"
	.It Fl s
	Ignore unknown (sloppy) mount options.
	.It Fl f
	Do everything except actually executing the system call.
	.It Fl n
	Never update
	.Pa /etc/mtab .
	.It Fl v
	Print resolved mount options and parser state.
	.It Fl h
	Print the usage message.
	.It Fl o Ar zfsutil
	This private flag indicates that
	.Xr mount 8
	is being called by the
	.Xr zfs 8
	command.
	.El
	.
	.Sh SEE ALSO
	.Xr fstab 5 ,
	.Xr mount 8 ,
	.Xr zfs-mount 8
	diff --git a/sys/contrib/openzfs/man/man8/zed.8.in b/sys/contrib/openzfs/man/man8/zed.8.in
	index e0d9f04043dc..d3297605206e 100644
	--- a/sys/contrib/openzfs/man/man8/zed.8.in
	+++ b/sys/contrib/openzfs/man/man8/zed.8.in
	@@ -1,256 +1,255 @@
	.\"
	.\" This file is part of the ZFS Event Daemon (ZED).
	.\" Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049).
	.\" Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
	.\" Refer to the OpenZFS git commit log for authoritative copyright attribution.
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License Version 1.0 (CDDL-1.0).
	.\" You can obtain a copy of the license from the top-level file
	.\" "OPENSOLARIS.LICENSE" or at <http://opensource.org/licenses/CDDL-1.0>.
	.\" You may not use this file except in compliance with the license.
	.\"
	.\" Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049)
	.\"
	.Dd May 26, 2021
	.Dt ZED 8
	.Os
	.
	.Sh NAME
	.Nm ZED
	.Nd ZFS Event Daemon
	.Sh SYNOPSIS
	.Nm
	.Op Fl fFhILMvVZ
	.Op Fl d Ar zedletdir
	.Op Fl p Ar pidfile
	.Op Fl P Ar path
	.Op Fl s Ar statefile
	.Op Fl j Ar jobs
	.
	.Sh DESCRIPTION
	The
	.Nm
	(ZFS Event Daemon) monitors events generated by the ZFS kernel
	module.
	When a zevent (ZFS Event) is posted, the
	.Nm
	will run any ZEDLETs (ZFS Event Daemon Linkage for Executable Tasks)
	that have been enabled for the corresponding zevent class.
	.
	.Sh OPTIONS
	.Bl -tag -width "-h"
	.It Fl h
	Display a summary of the command-line options.
	.It Fl L
	Display license information.
	.It Fl V
	Display version information.
	.It Fl v
	Be verbose.
	.It Fl f
	Force the daemon to run if at all possible, disabling security checks and
	throwing caution to the wind.
	Not recommended for use in production.
	.It Fl F
	Don't daemonise: remain attached to the controlling terminal,
	log to the standard I/O streams.
	.It Fl M
	Lock all current and future pages in the virtual memory address space.
	This may help the daemon remain responsive when the system is under heavy
	memory pressure.
	.It Fl I
	Request that the daemon idle rather than exit when the kernel modules are not loaded.
	Processing of events will start, or resume, when the kernel modules are (re)loaded.
	Under Linux the kernel modules cannot be unloaded while the daemon is running.
	.It Fl Z
	Zero the daemon's state, thereby allowing zevents still within the kernel
	to be reprocessed.
	.It Fl d Ar zedletdir
	Read the enabled ZEDLETs from the specified directory.
	.It Fl p Ar pidfile
	Write the daemon's process ID to the specified file.
	.It Fl P Ar path
	Custom
	.Ev $PATH
	for zedlets to use.
	Normally zedlets run in a locked-down environment, with hardcoded paths to the ZFS commands
	.Pq Ev $ZFS , $ZPOOL , $ZED , ... ,
	and a hard-coded
	.Ev $PATH .
	This is done for security reasons.
	However, the ZFS test suite uses a custom PATH for its ZFS commands, and passes it to
	.Nm
	with
	.Fl P .
	In short,
	.Fl P
	is only to be used by the ZFS test suite; never use
	it in production!
	.It Fl s Ar statefile
	Write the daemon's state to the specified file.
	.It Fl j Ar jobs
	Allow at most
	.Ar jobs
	ZEDLETs to run concurrently,
	delaying execution of new ones until they finish.
	Defaults to
	.Sy 16 .
	.El
	.Sh ZEVENTS
	A zevent is comprised of a list of nvpairs (name/value pairs).
	Each zevent contains an EID (Event IDentifier) that uniquely identifies it throughout
	the lifetime of the loaded ZFS kernel module; this EID is a monotonically
	increasing integer that resets to 1 each time the kernel module is loaded.
	Each zevent also contains a class string that identifies the type of event.
	For brevity, a subclass string is defined that omits the leading components
	of the class string.
	Additional nvpairs exist to provide event details.
	.Pp
	The kernel maintains a list of recent zevents that can be viewed (along with
	their associated lists of nvpairs) using the
	.Nm zpool Cm events Fl v
	command.
	.
	.Sh CONFIGURATION
	ZEDLETs to be invoked in response to zevents are located in the
	.Em enabled-zedlets
	directory
	.Pq Ar zedletdir .
	These can be symlinked or copied from the
	.Em installed-zedlets
	directory; symlinks allow for automatic updates
	from the installed ZEDLETs, whereas copies preserve local modifications.
	As a security measure, since ownership change is a privileged operation,
	ZEDLETs must be owned by root.
	They must have execute permissions for the user,
	but they must not have write permissions for group or other.
	Dotfiles are ignored.
	.Pp
	ZEDLETs are named after the zevent class for which they should be invoked.
	In particular, a ZEDLET will be invoked for a given zevent if either its
	class or subclass string is a prefix of its filename (and is followed by
	a non-alphabetic character).
	As a special case, the prefix
	.Sy all
	matches all zevents.
	Multiple ZEDLETs may be invoked for a given zevent.
	.
	.Sh ZEDLETS
	ZEDLETs are executables invoked by the ZED in response to a given zevent.
	They should be written under the presumption they can be invoked concurrently,
	and they should use appropriate locking to access any shared resources.
	Common variables used by ZEDLETs can be stored in the default rc file which
	is sourced by scripts; these variables should be prefixed with
	.Sy ZED_ .
	.Pp
	The zevent nvpairs are passed to ZEDLETs as environment variables.
	Each nvpair name is converted to an environment variable in the following
	manner:
	-.Bl -enum
	+.Bl -enum -compact
	.It
	it is prefixed with
	.Sy ZEVENT_ ,
	.It
	it is converted to uppercase, and
	.It
	each non-alphanumeric character is converted to an underscore.
	.El
	.Pp
	Some additional environment variables have been defined to present certain
	nvpair values in a more convenient form.
	An incomplete list of zevent environment variables is as follows:
	-.Bl -tag -width "ZEVENT_TIME_STRING"
	+.Bl -tag -compact -width "ZEVENT_TIME_STRING"
	.It Sy ZEVENT_EID
	The Event IDentifier.
	.It Sy ZEVENT_CLASS
	The zevent class string.
	.It Sy ZEVENT_SUBCLASS
	The zevent subclass string.
	.It Sy ZEVENT_TIME
	The time at which the zevent was posted as
	.Dq Em seconds nanoseconds
	since the Epoch.
	.It Sy ZEVENT_TIME_SECS
	The
	.Em seconds
	component of
	.Sy ZEVENT_TIME .
	.It Sy ZEVENT_TIME_NSECS
	The
	.Em nanoseconds
	component of
	.Sy ZEVENT_TIME .
	.It Sy ZEVENT_TIME_STRING
	An almost-RFC3339-compliant string for
	.Sy ZEVENT_TIME .
	.El
	.Pp
	Additionally, the following ZED & ZFS variables are defined:
	-.Bl -tag -width "ZEVENT_TIME_STRING"
	+.Bl -tag -compact -width "ZEVENT_TIME_STRING"
	.It Sy ZED_PID
	The daemon's process ID.
	.It Sy ZED_ZEDLET_DIR
	The daemon's current
	.Em enabled-zedlets
	directory.
	.It Sy ZFS_ALIAS
	The alias
	.Pq Dq Em name Ns - Ns Em version Ns - Ns Em release
	string of the ZFS distribution the daemon is part of.
	.It Sy ZFS_VERSION
	The ZFS version the daemon is part of.
	.It Sy ZFS_RELEASE
	The ZFS release the daemon is part of.
	.El
	.Pp
	ZEDLETs may need to call other ZFS commands.
	The installation paths of the following executables are defined as environment variables:
	.Sy ZDB ,
	.Sy ZED ,
	.Sy ZFS ,
	.Sy ZINJECT ,
	and
	.Sy ZPOOL .
	These variables may be overridden in the rc file.
	.
	.Sh FILES
	.Bl -tag -width "-c"
	.It Pa @sysconfdir@/zfs/zed.d
	The default directory for enabled ZEDLETs.
	.It Pa @sysconfdir@/zfs/zed.d/zed.rc
	The default rc file for common variables used by ZEDLETs.
	.It Pa @zfsexecdir@/zed.d
	The default directory for installed ZEDLETs.
	.It Pa @runstatedir@/zed.pid
	The default file containing the daemon's process ID.
	.It Pa @runstatedir@/zed.state
	The default file containing the daemon's state.
	.El
	.
	.Sh SIGNALS
	.Bl -tag -width "-c"
	.It Sy SIGHUP
	Reconfigure the daemon and rescan the directory for enabled ZEDLETs.
	.It Sy SIGTERM , SIGINT
	Terminate the daemon.
	.El
	.
	.Sh SEE ALSO
	-.Xr zfs-events 5 ,
	.Xr zfs 8 ,
	.Xr zpool 8 ,
	.Xr zpool-events 8
	.
	.Sh NOTES
	The
	.Nm
	requires root privileges.
	.Pp
	Do not taunt the
	.Nm .
	.
	.Sh BUGS
	ZEDLETs are unable to return state/status information to the kernel.
	.Pp
	Internationalization support via gettext has not been added.
	diff --git a/sys/contrib/openzfs/man/man8/zfs-bookmark.8 b/sys/contrib/openzfs/man/man8/zfs-bookmark.8
	index d8833c3fbc7d..094a7b30902f 100644
	--- a/sys/contrib/openzfs/man/man8/zfs-bookmark.8
	+++ b/sys/contrib/openzfs/man/man8/zfs-bookmark.8
	@@ -1,67 +1,67 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\" Copyright (c) 2019, 2020 by Christian Schwarz. All Rights Reserved.
	.\"
	.Dd May 27, 2021
	.Dt ZFS-BOOKMARK 8
	.Os
	.
	.Sh NAME
	.Nm zfs-bookmark
	.Nd create bookmark of ZFS snapshot
	.Sh SYNOPSIS
	.Nm zfs
	.Cm bookmark
	.Ar snapshot Ns \| Ns Ar bookmark
	.Ar newbookmark
	.
	.Sh DESCRIPTION
	Creates a new bookmark of the given snapshot or bookmark.
	Bookmarks mark the point in time when the snapshot was created, and can be used
	as the incremental source for a
	.Nm zfs Cm send .
	.Pp
	When creating a bookmark from an existing redaction bookmark, the resulting
	bookmark is
	.Em not
	a redaction bookmark.
	.Pp
	This feature must be enabled to be used.
	See
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	for details on ZFS feature flags and the
	.Sy bookmarks
	feature.
	.
	.Sh SEE ALSO
	.Xr zfs-destroy 8 ,
	.Xr zfs-send 8 ,
	.Xr zfs-snapshot 8
	diff --git a/sys/contrib/openzfs/man/man8/zfs-clone.8 b/sys/contrib/openzfs/man/man8/zfs-clone.8
	index 24784ecb9aa1..0640244f2009 100644
	--- a/sys/contrib/openzfs/man/man8/zfs-clone.8
	+++ b/sys/contrib/openzfs/man/man8/zfs-clone.8
	@@ -1,70 +1,70 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\"
	.Dd May 27, 2021
	.Dt ZFS-CLONE 8
	.Os
	.
	.Sh NAME
	.Nm zfs-clone
	.Nd clone snapshot of ZFS dataset
	.Sh SYNOPSIS
	.Nm zfs
	.Cm clone
	.Op Fl p
	.Oo Fl o Ar property Ns = Ns Ar value Oc Ns …
	.Ar snapshot Ar filesystem Ns \| Ns Ar volume
	.
	.Sh DESCRIPTION
	See the
	.Sx Clones
	section of
	-.Xr zfsconcepts 8
	+.Xr zfsconcepts 7
	for details.
	The target dataset can be located anywhere in the ZFS hierarchy,
	and is created as the same type as the original.
	.Bl -tag -width Ds
	.It Fl o Ar property Ns = Ns Ar value
	Sets the specified property; see
	.Nm zfs Cm create
	for details.
	.It Fl p
	Creates all the non-existing parent datasets.
	Datasets created in this manner are automatically mounted according to the
	.Sy mountpoint
	property inherited from their parent.
	If the target filesystem or volume already exists, the operation completes
	successfully.
	.El
	.
	.Sh SEE ALSO
	.Xr zfs-promote 8 ,
	.Xr zfs-snapshot 8
	diff --git a/sys/contrib/openzfs/man/man8/zfs-create.8 b/sys/contrib/openzfs/man/man8/zfs-create.8
	index 100a6deeda53..55397fa661d5 100644
	--- a/sys/contrib/openzfs/man/man8/zfs-create.8
	+++ b/sys/contrib/openzfs/man/man8/zfs-create.8
	@@ -1,249 +1,249 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\"
	.Dd December 1, 2020
	.Dt ZFS-CREATE 8
	.Os
	.
	.Sh NAME
	.Nm zfs-create
	.Nd create ZFS dataset
	.Sh SYNOPSIS
	.Nm zfs
	.Cm create
	.Op Fl Pnpuv
	.Oo Fl o Ar property Ns = Ns Ar value Oc Ns …
	.Ar filesystem
	.Nm zfs
	.Cm create
	.Op Fl ps
	.Op Fl b Ar blocksize
	.Oo Fl o Ar property Ns = Ns Ar value Oc Ns …
	.Fl V Ar size Ar volume
	.
	.Sh DESCRIPTION
	.Bl -tag -width ""
	.It Xo
	.Nm zfs
	.Cm create
	.Op Fl Pnpuv
	.Oo Fl o Ar property Ns = Ns Ar value Oc Ns …
	.Ar filesystem
	.Xc
	Creates a new ZFS file system.
	The file system is automatically mounted according to the
	.Sy mountpoint
	property inherited from the parent, unless the
	.Fl u
	option is used.
	.Bl -tag -width "-o"
	.It Fl o Ar property Ns = Ns Ar value
	Sets the specified property as if the command
	.Nm zfs Cm set Ar property Ns = Ns Ar value
	was invoked at the same time the dataset was created.
	Any editable ZFS property can also be set at creation time.
	Multiple
	.Fl o
	options can be specified.
	An error results if the same property is specified in multiple
	.Fl o
	options.
	.It Fl p
	Creates all the non-existing parent datasets.
	Datasets created in this manner are automatically mounted according to the
	.Sy mountpoint
	property inherited from their parent.
	Any property specified on the command line using the
	.Fl o
	option is ignored.
	If the target filesystem already exists, the operation completes successfully.
	.It Fl n
	Do a dry-run
	.Pq Qq No-op
	creation.
	No datasets will be created.
	This is useful in conjunction with the
	.Fl v
	or
	.Fl P
	flags to validate properties that are passed via
	.Fl o
	options and those implied by other options.
	The actual dataset creation can still fail due to insufficient privileges or
	available capacity.
	.It Fl P
	Print machine-parsable verbose information about the created dataset.
	Each line of output contains a key and one or two values, all separated by tabs.
	The
	.Sy create_ancestors
	and
	.Sy create
	keys have
	.Em filesystem
	as their only value.
	The
	.Sy create_ancestors
	key only appears if the
	.Fl p
	option is used.
	The
	.Sy property
	key has two values, a property name that property's value.
	The
	.Sy property
	key may appear zero or more times, once for each property that will be set local
	to
	.Em filesystem
	due to the use of the
	.Fl o
	option.
	.It Fl u
	Do not mount the newly created file system.
	.It Fl v
	Print verbose information about the created dataset.
	.El
	.It Xo
	.Nm zfs
	.Cm create
	.Op Fl ps
	.Op Fl b Ar blocksize
	.Oo Fl o Ar property Ns = Ns Ar value Oc Ns …
	.Fl V Ar size Ar volume
	.Xc
	Creates a volume of the given size.
	The volume is exported as a block device in
	.Pa /dev/zvol/path ,
	where
	.Em path
	is the name of the volume in the ZFS namespace.
	The size represents the logical size as exported by the device.
	By default, a reservation of equal size is created.
	.Pp
	.Ar size
	is automatically rounded up to the nearest multiple of the
	.Sy blocksize .
	.Bl -tag -width "-b"
	.It Fl b Ar blocksize
	Equivalent to
	.Fl o Sy volblocksize Ns = Ns Ar blocksize .
	If this option is specified in conjunction with
	.Fl o Sy volblocksize ,
	the resulting behavior is undefined.
	.It Fl o Ar property Ns = Ns Ar value
	Sets the specified property as if the
	.Nm zfs Cm set Ar property Ns = Ns Ar value
	command was invoked at the same time the dataset was created.
	Any editable ZFS property can also be set at creation time.
	Multiple
	.Fl o
	options can be specified.
	An error results if the same property is specified in multiple
	.Fl o
	options.
	.It Fl p
	Creates all the non-existing parent datasets.
	Datasets created in this manner are automatically mounted according to the
	.Sy mountpoint
	property inherited from their parent.
	Any property specified on the command line using the
	.Fl o
	option is ignored.
	If the target filesystem already exists, the operation completes successfully.
	.It Fl s
	Creates a sparse volume with no reservation.
	See
	.Sy volsize
	in the
	.Em Native Properties
	section of
	-.Xr zfsprops 8
	+.Xr zfsprops 7
	for more information about sparse volumes.
	.It Fl n
	Do a dry-run
	.Pq Qq No-op
	creation.
	No datasets will be created.
	This is useful in conjunction with the
	.Fl v
	or
	.Fl P
	flags to validate properties that are passed via
	.Fl o
	options and those implied by other options.
	The actual dataset creation can still fail due to insufficient privileges or
	available capacity.
	.It Fl P
	Print machine-parsable verbose information about the created dataset.
	Each line of output contains a key and one or two values, all separated by tabs.
	The
	.Sy create_ancestors
	and
	.Sy create
	keys have
	.Em volume
	as their only value.
	The
	.Sy create_ancestors
	key only appears if the
	.Fl p
	option is used.
	The
	.Sy property
	key has two values, a property name that property's value.
	The
	.Sy property
	key may appear zero or more times, once for each property that will be set local
	to
	.Em volume
	due to the use of the
	.Fl b
	or
	.Fl o
	options, as well as
	.Sy refreservation
	if the volume is not sparse.
	.It Fl v
	Print verbose information about the created dataset.
	.El
	.El
	.Ss ZFS Volumes as Swap
	ZFS volumes may be used as swap devices.
	After creating the volume with the
	.Nm zfs Cm create Fl V
	enable the swap area using the
	.Xr swapon 8
	command.
	Swapping to files on ZFS filesystems is not supported.
	.
	.Sh SEE ALSO
	.Xr zfs-destroy 8 ,
	.Xr zfs-list 8 ,
	.Xr zpool-create 8
	diff --git a/sys/contrib/openzfs/man/man8/zfs-jail.8 b/sys/contrib/openzfs/man/man8/zfs-jail.8
	index d4a04073edbc..4f9faaea9bf5 100644
	--- a/sys/contrib/openzfs/man/man8/zfs-jail.8
	+++ b/sys/contrib/openzfs/man/man8/zfs-jail.8
	@@ -1,123 +1,123 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2011, Pawel Jakub Dawidek <pjd@FreeBSD.org>
	.\" Copyright (c) 2012, Glen Barber <gjb@FreeBSD.org>
	.\" Copyright (c) 2012, Bryan Drewery <bdrewery@FreeBSD.org>
	.\" Copyright (c) 2013, Steven Hartland <smh@FreeBSD.org>
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright (c) 2014, Xin LI <delphij@FreeBSD.org>
	.\" Copyright (c) 2014-2015, The FreeBSD Foundation, All Rights Reserved.
	.\" Copyright (c) 2016 Nexenta Systems, Inc. All Rights Reserved.
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\"
	.Dd May 27, 2021
	.Dt ZFS-JAIL 8
	.Os
	.
	.Sh NAME
	.Nm zfs-jail
	.Nd attach or detach ZFS filesystem from FreeBSD jail
	.Sh SYNOPSIS
	.Nm zfs Cm jail
	.Ar jailid Ns \| Ns Ar jailname
	.Ar filesystem
	.Nm zfs Cm unjail
	.Ar jailid Ns \| Ns Ar jailname
	.Ar filesystem
	.
	.Sh DESCRIPTION
	.Bl -tag -width ""
	.It Xo
	.Nm zfs
	.Cm jail
	.Ar jailid Ns \| Ns Ar jailname
	.Ar filesystem
	.Xc
	Attach the specified
	.Ar filesystem
	to the jail identified by JID
	.Ar jailid
	or name
	.Ar jailname .
	From now on this file system tree can be managed from within a jail if the
	.Sy jailed
	property has been set.
	To use this functionality, the jail needs the
	.Sy allow.mount
	and
	.Sy allow.mount.zfs
	parameters set to
	.Sy 1
	and the
	.Sy enforce_statfs
	parameter set to a value lower than
	.Sy 2 .
	.Pp
	You cannot attach a jailed dataset's children to another jail.
	You can also not attach the root file system
	of the jail or any dataset which needs to be mounted before the zfs rc script
	is run inside the jail, as it would be attached unmounted until it is
	mounted from the rc script inside the jail.
	.Pp
	To allow management of the dataset from within a jail, the
	.Sy jailed
	property has to be set and the jail needs access to the
	.Pa /dev/zfs
	device.
	The
	.Sy quota
	property cannot be changed from within a jail.
	.Pp
	After a dataset is attached to a jail and the
	.Sy jailed
	property is set, a jailed file system cannot be mounted outside the jail,
	since the jail administrator might have set the mount point to an unacceptable value.
	.Pp
	See
	.Xr jail 8
	for more information on managing jails.
	Jails are a
	.Fx
	feature and are not relevant on other platforms.
	.It Xo
	.Nm zfs
	.Cm unjail
	.Ar jailid Ns \| Ns Ar jailname
	.Ar filesystem
	.Xc
	Detaches the specified
	.Ar filesystem
	from the jail identified by JID
	.Ar jailid
	or name
	.Ar jailname .
	.El
	.Sh SEE ALSO
	-.Xr jail 8 ,
	-.Xr zfsprops 8
	+.Xr zfsprops 7 ,
	+.Xr jail 8
	diff --git a/sys/contrib/openzfs/man/man8/zfs-list.8 b/sys/contrib/openzfs/man/man8/zfs-list.8
	index 0313b3a14ecb..5200483868ff 100644
	--- a/sys/contrib/openzfs/man/man8/zfs-list.8
	+++ b/sys/contrib/openzfs/man/man8/zfs-list.8
	@@ -1,162 +1,162 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\"
	.Dd May 27, 2021
	.Dt ZFS-LIST 8
	.Os
	.
	.Sh NAME
	.Nm zfs-list
	.Nd list properties of ZFS datasets
	.Sh SYNOPSIS
	.Nm zfs
	.Cm list
	.Op Fl r Ns \| Ns Fl d Ar depth
	.Op Fl Hp
	.Oo Fl o Ar property Ns Oo , Ns Ar property Oc Ns … Oc
	.Oo Fl s Ar property Oc Ns …
	.Oo Fl S Ar property Oc Ns …
	.Oo Fl t Ar type Ns Oo , Ns Ar type Oc Ns … Oc
	.Oo Ar filesystem Ns \| Ns Ar volume Ns \| Ns Ar snapshot Oc Ns …
	.
	.Sh DESCRIPTION
	If specified, you can list property information by the absolute pathname or the
	relative pathname.
	By default, all file systems and volumes are displayed.
	Snapshots are displayed if the
	.Sy listsnapshots
	pool property is
	.Sy on
	.Po the default is
	.Sy off
	.Pc ,
	or if the
	.Fl t Sy snapshot
	or
	.Fl t Sy all
	options are specified.
	The following fields are displayed:
	.Sy name , Sy used , Sy available , Sy referenced , Sy mountpoint .
	.Bl -tag -width "-H"
	.It Fl H
	Used for scripting mode.
	Do not print headers and separate fields by a single tab instead of arbitrary
	white space.
	.It Fl S Ar property
	Same as the
	.Fl s
	option, but sorts by property in descending order.
	.It Fl d Ar depth
	Recursively display any children of the dataset, limiting the recursion to
	.Ar depth .
	A
	.Ar depth
	of
	.Sy 1
	will display only the dataset and its direct children.
	.It Fl o Ar property
	A comma-separated list of properties to display.
	The property must be:
	.Bl -bullet -compact
	.It
	One of the properties described in the
	.Sx Native Properties
	section of
	-.Xr zfsprops 8
	+.Xr zfsprops 7
	.It
	A user property
	.It
	The value
	.Sy name
	to display the dataset name
	.It
	The value
	.Sy space
	to display space usage properties on file systems and volumes.
	This is a shortcut for specifying
	.Fl o Ns \ \& Ns Sy name , Ns Sy avail , Ns Sy used , Ns Sy usedsnap , Ns
	.Sy usedds , Ns Sy usedrefreserv , Ns Sy usedchild
	.Fl t Sy filesystem , Ns Sy volume .
	.El
	.It Fl p
	Display numbers in parsable
	.Pq exact
	values.
	.It Fl r
	Recursively display any children of the dataset on the command line.
	.It Fl s Ar property
	A property for sorting the output by column in ascending order based on the
	value of the property.
	The property must be one of the properties described in the
	.Sx Properties
	section of
	-.Xr zfsprops 8
	+.Xr zfsprops 7
	or the value
	.Sy name
	to sort by the dataset name.
	Multiple properties can be specified at one time using multiple
	.Fl s
	property options.
	Multiple
	.Fl s
	options are evaluated from left to right in decreasing order of importance.
	The following is a list of sorting criteria:
	.Bl -bullet -compact
	.It
	Numeric types sort in numeric order.
	.It
	String types sort in alphabetical order.
	.It
	Types inappropriate for a row sort that row to the literal bottom, regardless of
	the specified ordering.
	.El
	.Pp
	If no sorting options are specified the existing behavior of
	.Nm zfs Cm list
	is preserved.
	.It Fl t Ar type
	A comma-separated list of types to display, where
	.Ar type
	is one of
	.Sy filesystem ,
	.Sy snapshot ,
	.Sy volume ,
	.Sy bookmark ,
	or
	.Sy all .
	For example, specifying
	.Fl t Sy snapshot
	displays only snapshots.
	.El
	.
	.Sh SEE ALSO
	-.Xr zfs-get 8 ,
	-.Xr zfsprops 8
	+.Xr zfsprops 7 ,
	+.Xr zfs-get 8
	diff --git a/sys/contrib/openzfs/man/man8/zfs-load-key.8 b/sys/contrib/openzfs/man/man8/zfs-load-key.8
	index f29d3df824fd..ed89b65d7159 100644
	--- a/sys/contrib/openzfs/man/man8/zfs-load-key.8
	+++ b/sys/contrib/openzfs/man/man8/zfs-load-key.8
	@@ -1,301 +1,301 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\"
	.Dd January 13, 2020
	.Dt ZFS-LOAD-KEY 8
	.Os
	.
	.Sh NAME
	.Nm zfs-load-key
	.Nd load, unload, or change encryption key of ZFS dataset
	.Sh SYNOPSIS
	.Nm zfs
	.Cm load-key
	.Op Fl nr
	.Op Fl L Ar keylocation
	.Fl a Ns \| Ns Ar filesystem
	.Nm zfs
	.Cm unload-key
	.Op Fl r
	.Fl a Ns \| Ns Ar filesystem
	.Nm zfs
	.Cm change-key
	.Op Fl l
	.Op Fl o Ar keylocation Ns = Ns Ar value
	.Op Fl o Ar keyformat Ns = Ns Ar value
	.Op Fl o Ar pbkdf2iters Ns = Ns Ar value
	.Ar filesystem
	.Nm zfs
	.Cm change-key
	.Fl i
	.Op Fl l
	.Ar filesystem
	.
	.Sh DESCRIPTION
	.Bl -tag -width ""
	.It Xo
	.Nm zfs
	.Cm load-key
	.Op Fl nr
	.Op Fl L Ar keylocation
	.Fl a Ns \| Ns Ar filesystem
	.Xc
	Load the key for
	.Ar filesystem ,
	allowing it and all children that inherit the
	.Sy keylocation
	property to be accessed.
	The key will be expected in the format specified by the
	.Sy keyformat
	and location specified by the
	.Sy keylocation
	property.
	Note that if the
	.Sy keylocation
	is set to
	.Sy prompt
	the terminal will interactively wait for the key to be entered.
	Loading a key will not automatically mount the dataset.
	If that functionality is desired,
	.Nm zfs Cm mount Fl l
	will ask for the key and mount the dataset
	.Po
	see
	.Xr zfs-mount 8
	.Pc .
	Once the key is loaded the
	.Sy keystatus
	property will become
	.Sy available .
	.Bl -tag -width "-r"
	.It Fl r
	Recursively loads the keys for the specified filesystem and all descendent
	encryption roots.
	.It Fl a
	Loads the keys for all encryption roots in all imported pools.
	.It Fl n
	Do a dry-run
	.Pq Qq No-op
	.Cm load-key .
	This will cause
	.Nm zfs
	to simply check that the provided key is correct.
	This command may be run even if the key is already loaded.
	.It Fl L Ar keylocation
	Use
	.Ar keylocation
	instead of the
	.Sy keylocation
	property.
	This will not change the value of the property on the dataset.
	Note that if used with either
	.Fl r
	or
	.Fl a ,
	.Ar keylocation
	may only be given as
	.Sy prompt .
	.El
	.It Xo
	.Nm zfs
	.Cm unload-key
	.Op Fl r
	.Fl a Ns \| Ns Ar filesystem
	.Xc
	Unloads a key from ZFS, removing the ability to access the dataset and all of
	its children that inherit the
	.Sy keylocation
	property.
	This requires that the dataset is not currently open or mounted.
	Once the key is unloaded the
	.Sy keystatus
	property will become
	.Sy unavailable .
	.Bl -tag -width "-r"
	.It Fl r
	Recursively unloads the keys for the specified filesystem and all descendent
	encryption roots.
	.It Fl a
	Unloads the keys for all encryption roots in all imported pools.
	.El
	.It Xo
	.Nm zfs
	.Cm change-key
	.Op Fl l
	.Op Fl o Ar keylocation Ns = Ns Ar value
	.Op Fl o Ar keyformat Ns = Ns Ar value
	.Op Fl o Ar pbkdf2iters Ns = Ns Ar value
	.Ar filesystem
	.Xc
	.It Xo
	.Nm zfs
	.Cm change-key
	.Fl i
	.Op Fl l
	.Ar filesystem
	.Xc
	Changes the user's key (e.g. a passphrase) used to access a dataset.
	This command requires that the existing key for the dataset is already loaded.
	This command may also be used to change the
	.Sy keylocation ,
	.Sy keyformat ,
	and
	.Sy pbkdf2iters
	properties as needed.
	If the dataset was not previously an encryption root it will become one.
	Alternatively, the
	.Fl i
	flag may be provided to cause an encryption root to inherit the parent's key
	instead.
	.Pp
	If the user's key is compromised,
	.Nm zfs Cm change-key
	does not necessarily protect existing or newly-written data from attack.
	Newly-written data will continue to be encrypted with the same master key as
	the existing data.
	The master key is compromised if an attacker obtains a
	user key and the corresponding wrapped master key.
	Currently,
	.Nm zfs Cm change-key
	does not overwrite the previous wrapped master key on disk, so it is
	accessible via forensic analysis for an indeterminate length of time.
	.Pp
	In the event of a master key compromise, ideally the drives should be securely
	erased to remove all the old data (which is readable using the compromised
	master key), a new pool created, and the data copied back.
	This can be approximated in place by creating new datasets, copying the data
	.Pq e.g. using Nm zfs Cm send \| Nm zfs Cm recv ,
	and then clearing the free space with
	.Nm zpool Cm trim Fl -secure
	if supported by your hardware, otherwise
	.Nm zpool Cm initialize .
	.Bl -tag -width "-r"
	.It Fl l
	Ensures the key is loaded before attempting to change the key.
	This is effectively equivalent to runnin
	.Nm zfs Cm load-key Ar filesystem ; Nm zfs Cm change-key Ar filesystem
	.It Fl o Ar property Ns = Ns Ar value
	Allows the user to set encryption key properties
	.Pq Sy keyformat , keylocation , No and Sy pbkdf2iters
	while changing the key.
	This is the only way to alter
	.Sy keyformat
	and
	.Sy pbkdf2iters
	after the dataset has been created.
	.It Fl i
	Indicates that zfs should make
	.Ar filesystem
	inherit the key of its parent.
	Note that this command can only be run on an encryption root
	that has an encrypted parent.
	.El
	.El
	.Ss Encryption
	Enabling the
	.Sy encryption
	feature allows for the creation of encrypted filesystems and volumes.
	ZFS will encrypt file and volume data, file attributes, ACLs, permission bits,
	directory listings, FUID mappings, and
	.Sy userused Ns / Ns Sy groupused
	data.
	ZFS will not encrypt metadata related to the pool structure, including
	dataset and snapshot names, dataset hierarchy, properties, file size, file
	holes, and deduplication tables (though the deduplicated data itself is
	encrypted).
	.Pp
	Key rotation is managed by ZFS.
	Changing the user's key (e.g. a passphrase)
	does not require re-encrypting the entire dataset.
	Datasets can be scrubbed,
	resilvered, renamed, and deleted without the encryption keys being loaded (see the
	.Cm load-key
	subcommand for more info on key loading).
	.Pp
	Creating an encrypted dataset requires specifying the
	.Sy encryption No and Sy keyformat
	properties at creation time, along with an optional
	.Sy keylocation No and Sy pbkdf2iters .
	After entering an encryption key, the
	created dataset will become an encryption root.
	Any descendant datasets will
	inherit their encryption key from the encryption root by default, meaning that
	loading, unloading, or changing the key for the encryption root will implicitly
	do the same for all inheriting datasets.
	If this inheritance is not desired, simply supply a
	.Sy keyformat
	when creating the child dataset or use
	.Nm zfs Cm change-key
	to break an existing relationship, creating a new encryption root on the child.
	Note that the child's
	.Sy keyformat
	may match that of the parent while still creating a new encryption root, and
	that changing the
	.Sy encryption
	property alone does not create a new encryption root; this would simply use a
	different cipher suite with the same key as its encryption root.
	The one exception is that clones will always use their origin's encryption key.
	As a result of this exception, some encryption-related properties
	.Pq namely Sy keystatus , keyformat , keylocation , No and Sy pbkdf2iters
	do not inherit like other ZFS properties and instead use the value determined
	by their encryption root.
	Encryption root inheritance can be tracked via the read-only
	.Sy encryptionroot
	property.
	.Pp
	Encryption changes the behavior of a few ZFS
	operations.
	Encryption is applied after compression so compression ratios are preserved.
	Normally checksums in ZFS are 256 bits long, but for encrypted data
	the checksum is 128 bits of the user-chosen checksum and 128 bits of MAC from
	the encryption suite, which provides additional protection against maliciously
	altered data.
	Deduplication is still possible with encryption enabled but for security,
	datasets will only deduplicate against themselves, their snapshots,
	and their clones.
	.Pp
	There are a few limitations on encrypted datasets.
	Encrypted data cannot be embedded via the
	.Sy embedded_data
	feature.
	Encrypted datasets may not have
	.Sy copies Ns = Ns Em 3
	since the implementation stores some encryption metadata where the third copy
	would normally be.
	Since compression is applied before encryption, datasets may
	be vulnerable to a CRIME-like attack if applications accessing the data allow for it.
	Deduplication with encryption will leak information about which blocks
	are equivalent in a dataset and will incur an extra CPU cost for each block written.
	.
	.Sh SEE ALSO
	+.Xr zfsprops 7 ,
	.Xr zfs-create 8 ,
	-.Xr zfs-set 8 ,
	-.Xr zfsprops 8
	+.Xr zfs-set 8
	diff --git a/sys/contrib/openzfs/man/man8/zfs-mount-generator.8.in b/sys/contrib/openzfs/man/man8/zfs-mount-generator.8.in
	index e4117101beb3..7aa332ba8174 100644
	--- a/sys/contrib/openzfs/man/man8/zfs-mount-generator.8.in
	+++ b/sys/contrib/openzfs/man/man8/zfs-mount-generator.8.in
	@@ -1,192 +1,192 @@
	.\"
	.\" Copyright 2018 Antonio Russo <antonio.e.russo@gmail.com>
	.\" Copyright 2019 Kjeld Schouten-Lebbing <kjeld@schouten-lebbing.nl>
	.\" Copyright 2020 InsanePrawn <insane.prawny@gmail.com>
	.\"
	.\" Permission is hereby granted, free of charge, to any person obtaining
	.\" a copy of this software and associated documentation files (the
	.\" "Software"), to deal in the Software without restriction, including
	.\" without limitation the rights to use, copy, modify, merge, publish,
	.\" distribute, sublicense, and/or sell copies of the Software, and to
	.\" permit persons to whom the Software is furnished to do so, subject to
	.\" the following conditions:
	.\"
	.\" The above copyright notice and this permission notice shall be
	.\" included in all copies or substantial portions of the Software.
	.\"
	.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	.\" EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	.\" NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
	.\" LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
	.\" OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
	.\" WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	.\"
	.Dd May 31, 2021
	.Dt ZFS-MOUNT-GENERATOR 8
	.Os
	.
	.Sh NAME
	.Nm zfs-mount-generator
	.Nd generate systemd mount units for ZFS filesystems
	.Sh SYNOPSIS
	.Pa @systemdgeneratordir@/zfs-mount-generator
	.
	.Sh DESCRIPTION
	.Nm
	is a
	.Xr systemd.generator 7
	that generates native
	.Xr systemd.mount 5
	units for configured ZFS datasets.
	.
	.Ss Properties
	.Bl -tag -compact -width "org.openzfs.systemd:required-by=unit[ unit]…"
	.It Sy mountpoint Ns =
	.No Skipped if Sy legacy No or Sy none .
	.
	.It Sy canmount Ns =
	.No Skipped if Sy off .
	.No Skipped if only Sy noauto
	datasets exist for a given mountpoint and there's more than one.
	.No Datasets with Sy yes No take precedence over ones with Sy noauto No for the same mountpoint.
	.No Sets logical Em noauto No flag if Sy noauto .
	Encryption roots always generate
	.Sy zfs-load-key@ Ns Ar root Ns Sy .service ,
	even if
	.Sy off .
	.
	.It Sy atime Ns = , Sy relatime Ns = , Sy devices Ns = , Sy exec Ns = , Sy readonly Ns = , Sy setuid Ns = , Sy nbmand Ns =
	Used to generate mount options equivalent to
	.Nm zfs Cm mount .
	.
	.It Sy encroot Ns = , Sy keylocation Ns =
	If the dataset is an encryption root, its mount unit will bind to
	.Sy zfs-load-key@ Ns Ar root Ns Sy .service ,
	with additional dependencies as follows:
	.Bl -tag -compact -offset Ds -width "keylocation=https://URL (et al.)"
	.It Sy keylocation Ns = Ns Sy prompt
	None, uses
	.Xr systemd-ask-password 1
	.It Sy keylocation Ns = Ns Sy https:// Ns Ar URL Pq et al.\&
	.Sy Wants Ns = , Sy After Ns = : Pa network-online.target
	.It Sy keylocation Ns = Ns Sy file:// Ns < Ns Ar path Ns >
	.Sy RequiresMountsFor Ns = Ns Ar path
	.El
	.
	The service also uses the same
	.Sy Wants Ns = ,
	.Sy After Ns = ,
	.Sy Requires Ns = , No and
	.Sy RequiresMountsFor Ns = ,
	as the mount unit.
	.
	.It Sy org.openzfs.systemd:requires Ns = Ns Pa path Ns Oo " " Ns Pa path Oc Ns …
	.No Sets Sy Requires Ns = for the mount- and key-loading unit.
	.
	.It Sy org.openzfs.systemd:requires-mounts-for Ns = Ns Pa path Ns Oo " " Ns Pa path Oc Ns …
	.No Sets Sy RequiresMountsFor Ns = for the mount- and key-loading unit.
	.
	.It Sy org.openzfs.systemd:before Ns = Ns Pa unit Ns Oo " " Ns Pa unit Oc Ns …
	.No Sets Sy Before Ns = for the mount unit.
	.
	.It Sy org.openzfs.systemd:after Ns = Ns Pa unit Ns Oo " " Ns Pa unit Oc Ns …
	.No Sets Sy After Ns = for the mount unit.
	.
	.It Sy org.openzfs.systemd:wanted-by Ns = Ns Pa unit Ns Oo " " Ns Pa unit Oc Ns …
	.No Sets logical Em noauto No flag (see below).
	.No If not Sy none , No sets Sy WantedBy Ns = for the mount unit.
	.It Sy org.openzfs.systemd:required-by Ns = Ns Pa unit Ns Oo " " Ns Pa unit Oc Ns …
	.No Sets logical Em noauto No flag (see below).
	.No If not Sy none , No sets Sy RequiredBy Ns = for the mount unit.
	.
	.It Sy org.openzfs.systemd:nofail Ns = Ns (unset) Ns \| Ns Sy on Ns \| Ns Sy off
	Waxes or wanes strength of default reverse dependencies of the mount unit, see below.
	.
	.It Sy org.openzfs.systemd:ignore Ns = Ns Sy on Ns \| Ns Sy off
	.No Skip if Sy on .
	.No Defaults to Sy off .
	.El
	.
	.Ss Unit Ordering And Dependencies
	Additionally, unless the pool the dataset resides on
	is imported at generation time, both units gain
	.Sy Wants Ns = Ns Pa zfs-import.target
	and
	.Sy After Ns = Ns Pa zfs-import.target .
	.Pp
	Additionally, unless the logical
	.Em noauto
	flag is set, the mount unit gains a reverse-dependency for
	.Pa local-fs.target
	of strength
	.Bl -tag -compact -offset Ds -width "(unset)"
	.It (unset)
	.Sy WantedBy Ns = No + Sy Before Ns =
	.It Sy on
	.Sy WantedBy Ns =
	.It Sy off
	.Sy RequiredBy Ns = No + Sy Before Ns =
	.El
	.
	.Ss Cache File
	Because ZFS pools may not be available very early in the boot process,
	information on ZFS mountpoints must be stored separately.
	The output of
	.Dl Nm zfs Cm list Fl Ho Ar name , Ns Aq every property above in order
	for datasets that should be mounted by systemd should be kept at
	.Pa @sysconfdir@/zfs/zfs-list.cache/ Ns Ar poolname ,
	and, if writeable, will be kept synchronized for the entire pool by the
	.Pa history_event-zfs-list-cacher.sh
	ZEDLET, if enabled
	.Pq see Xr zed 8 .
	.
	.Sh ENVIRONMENT
	The
	.Sy ZFS_DEBUG
	environment variable can either be
	.Sy 0
	(default),
	.Sy 1
	(print summary accounting information at the end), or at least
	.Sy 2
	(print accounting information for each subprocess as it finishes).
	.
	If not present,
	.Pa /proc/cmdline
	is additionally checked for
	.Qq debug ,
	in which case the debug level is set to
	.Sy 2 .
	.
	.Sh EXAMPLES
	To begin, enable tracking for the pool:
	.Dl # Nm touch Pa @sysconfdir@/zfs/zfs-list.cache/ Ns Ar poolname
	Then enable the tracking ZEDLET:
	.Dl # Nm ln Fl s Pa @zfsexecdir@/zed.d/history_event-zfs-list-cacher.sh @sysconfdir@/zfs/zed.d
	.Dl # Nm systemctl Cm enable Pa zfs-zed.service
	.Dl # Nm systemctl Cm restart Pa zfs-zed.service
	.Pp
	If no history event is in the queue,
	inject one to ensure the ZEDLET runs to refresh the cache file
	by setting a monitored property somewhere on the pool:
	.Dl # Nm zfs Cm set Sy relatime Ns = Ns Sy off Ar poolname/dset
	.Dl # Nm zfs Cm inherit Sy relatime Ar poolname/dset
	.Pp
	To test the generator output:
	.Dl $ Nm mkdir Pa /tmp/zfs-mount-generator
	.Dl $ Nm @systemdgeneratordir@/zfs-mount-generator Pa /tmp/zfs-mount-generator
	.
	If the generated units are satisfactory, instruct
	.Nm systemd
	to re-run all generators:
	.Dl # Nm systemctl daemon-reload
	.
	.Sh SEE ALSO
	.Xr systemd.mount 5 ,
	.Xr systemd.target 5 ,
	.Xr zfs 5 ,
	-.Xr zfs-events 5 ,
	.Xr systemd.generator 7 ,
	.Xr systemd.special 7 ,
	-.Xr zed 8
	+.Xr zed 8 ,
	+.Xr zpool-events 8
	diff --git a/sys/contrib/openzfs/man/man8/zfs-mount.8 b/sys/contrib/openzfs/man/man8/zfs-mount.8
	index 62275242c9f9..42ce6b5ca155 100644
	--- a/sys/contrib/openzfs/man/man8/zfs-mount.8
	+++ b/sys/contrib/openzfs/man/man8/zfs-mount.8
	@@ -1,130 +1,130 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\"
	.Dd February 16, 2019
	.Dt ZFS-MOUNT 8
	.Os
	.
	.Sh NAME
	.Nm zfs-mount
	.Nd manage mount state of ZFS filesystems
	.Sh SYNOPSIS
	.Nm zfs
	.Cm mount
	.Nm zfs
	.Cm mount
	.Op Fl Oflv
	.Op Fl o Ar options
	.Fl a Ns \| Ns Ar filesystem
	.Nm zfs
	.Cm unmount
	.Op Fl fu
	.Fl a Ns \| Ns Ar filesystem Ns \| Ns Ar mountpoint
	.
	.Sh DESCRIPTION
	.Bl -tag -width ""
	.It Xo
	.Nm zfs
	.Cm mount
	.Xc
	Displays all ZFS file systems currently mounted.
	.It Xo
	.Nm zfs
	.Cm mount
	.Op Fl Oflv
	.Op Fl o Ar options
	.Fl a Ns \| Ns Ar filesystem
	.Xc
	Mount ZFS filesystem on a path described by its
	.Sy mountpoint
	property, if the path exists and is empty.
	If
	.Sy mountpoint
	is set to
	.Em legacy ,
	the filesystem should be instead mounted using
	.Xr mount 8 .
	.Bl -tag -width "-O"
	.It Fl O
	Perform an overlay mount.
	Allows mounting in non-empty
	.Sy mountpoint .
	See
	.Xr mount 8
	for more information.
	.It Fl a
	Mount all available ZFS file systems.
	Invoked automatically as part of the boot process if configured.
	.It Ar filesystem
	Mount the specified filesystem.
	.It Fl o Ar options
	An optional, comma-separated list of mount options to use temporarily for the
	duration of the mount.
	See the
	.Em Temporary Mount Point Properties
	section of
	-.Xr zfsprops 8
	+.Xr zfsprops 7
	for details.
	.It Fl l
	Load keys for encrypted filesystems as they are being mounted.
	This is equivalent to executing
	.Nm zfs Cm load-key
	on each encryption root before mounting it.
	Note that if a filesystem has
	.Sy keylocation Ns = Ns Sy prompt ,
	this will cause the terminal to interactively block after asking for the key.
	.It Fl v
	Report mount progress.
	.It Fl f
	Attempt to force mounting of all filesystems, even those that couldn't normally be mounted (e.g. redacted datasets).
	.El
	.It Xo
	.Nm zfs
	.Cm unmount
	.Op Fl fu
	.Fl a Ns \| Ns Ar filesystem Ns \| Ns Ar mountpoint
	.Xc
	Unmounts currently mounted ZFS file systems.
	.Bl -tag -width "-a"
	.It Fl a
	Unmount all available ZFS file systems.
	Invoked automatically as part of the shutdown process.
	.It Fl f
	Forcefully unmount the file system, even if it is currently in use.
	This option is not supported on Linux.
	.It Fl u
	Unload keys for any encryption roots unmounted by this command.
	.It Ar filesystem Ns \| Ns Ar mountpoint
	Unmount the specified filesystem.
	The command can also be given a path to a ZFS file system mount point on the
	system.
	.El
	.El
	diff --git a/sys/contrib/openzfs/man/man8/zfs-receive.8 b/sys/contrib/openzfs/man/man8/zfs-receive.8
	index ceb6e64ce571..d2cec42a8e71 100644
	--- a/sys/contrib/openzfs/man/man8/zfs-receive.8
	+++ b/sys/contrib/openzfs/man/man8/zfs-receive.8
	@@ -1,400 +1,400 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\"
	.Dd February 16, 2020
	.Dt ZFS-RECEIVE 8
	.Os
	.
	.Sh NAME
	.Nm zfs-receive
	.Nd create snapshot from backup stream
	.Sh SYNOPSIS
	.Nm zfs
	.Cm receive
	.Op Fl FhMnsuv
	.Op Fl o Sy origin Ns = Ns Ar snapshot
	.Op Fl o Ar property Ns = Ns Ar value
	.Op Fl x Ar property
	.Ar filesystem Ns \| Ns Ar volume Ns \| Ns Ar snapshot
	.Nm zfs
	.Cm receive
	.Op Fl FhMnsuv
	.Op Fl d Ns \| Ns Fl e
	.Op Fl o Sy origin Ns = Ns Ar snapshot
	.Op Fl o Ar property Ns = Ns Ar value
	.Op Fl x Ar property
	.Ar filesystem
	.Nm zfs
	.Cm receive
	.Fl A
	.Ar filesystem Ns \| Ns Ar volume
	.
	.Sh DESCRIPTION
	.Bl -tag -width ""
	.It Xo
	.Nm zfs
	.Cm receive
	.Op Fl FhMnsuv
	.Op Fl o Sy origin Ns = Ns Ar snapshot
	.Op Fl o Ar property Ns = Ns Ar value
	.Op Fl x Ar property
	.Ar filesystem Ns \| Ns Ar volume Ns \| Ns Ar snapshot
	.Xc
	.It Xo
	.Nm zfs
	.Cm receive
	.Op Fl FhMnsuv
	.Op Fl d Ns \| Ns Fl e
	.Op Fl o Sy origin Ns = Ns Ar snapshot
	.Op Fl o Ar property Ns = Ns Ar value
	.Op Fl x Ar property
	.Ar filesystem
	.Xc
	Creates a snapshot whose contents are as specified in the stream provided on
	standard input.
	If a full stream is received, then a new file system is created as well.
	Streams are created using the
	.Nm zfs Cm send
	subcommand, which by default creates a full stream.
	.Nm zfs Cm recv
	can be used as an alias for
	.Nm zfs Cm receive .
	.Pp
	If an incremental stream is received, then the destination file system must
	already exist, and its most recent snapshot must match the incremental stream's
	source.
	For
	.Sy zvols ,
	the destination device link is destroyed and recreated, which means the
	.Sy zvol
	cannot be accessed during the
	.Cm receive
	operation.
	.Pp
	When a snapshot replication package stream that is generated by using the
	.Nm zfs Cm send Fl R
	command is received, any snapshots that do not exist on the sending location are
	destroyed by using the
	.Nm zfs Cm destroy Fl d
	command.
	.Pp
	The ability to send and receive deduplicated send streams has been removed.
	However, a deduplicated send stream created with older software can be converted
	to a regular (non-deduplicated) stream by using the
	.Nm zstream Cm redup
	command.
	.Pp
	If
	.Fl o Em property Ns = Ns Ar value
	or
	.Fl x Em property
	is specified, it applies to the effective value of the property throughout
	the entire subtree of replicated datasets.
	Effective property values will be set
	.Pq Fl o
	or inherited
	.Pq Fl x
	on the topmost in the replicated subtree.
	In descendant datasets, if the
	property is set by the send stream, it will be overridden by forcing the
	property to be inherited from the top‐most file system.
	Received properties are retained in spite of being overridden
	and may be restored with
	.Nm zfs Cm inherit Fl S .
	Specifying
	.Fl o Sy origin Ns = Ns Em snapshot
	is a special case because, even if
	.Sy origin
	is a read-only property and cannot be set, it's allowed to receive the send
	stream as a clone of the given snapshot.
	.Pp
	Raw encrypted send streams (created with
	.Nm zfs Cm send Fl w )
	may only be received as is, and cannot be re-encrypted, decrypted, or
	recompressed by the receive process.
	Unencrypted streams can be received as
	encrypted datasets, either through inheritance or by specifying encryption
	parameters with the
	.Fl o
	options.
	Note that the
	.Sy keylocation
	property cannot be overridden to
	.Sy prompt
	during a receive.
	This is because the receive process itself is already using
	the standard input for the send stream.
	Instead, the property can be overridden after the receive completes.
	.Pp
	The added security provided by raw sends adds some restrictions to the send
	and receive process.
	ZFS will not allow a mix of raw receives and non-raw receives.
	Specifically, any raw incremental receives that are attempted after
	a non-raw receive will fail.
	Non-raw receives do not have this restriction and,
	therefore, are always possible.
	Because of this, it is best practice to always
	use either raw sends for their security benefits or non-raw sends for their
	flexibility when working with encrypted datasets, but not a combination.
	.Pp
	The reason for this restriction stems from the inherent restrictions of the
	AEAD ciphers that ZFS uses to encrypt data.
	When using ZFS native encryption,
	each block of data is encrypted against a randomly generated number known as
	the "initialization vector" (IV), which is stored in the filesystem metadata.
	This number is required by the encryption algorithms whenever the data is to
	be decrypted.
	Together, all of the IVs provided for all of the blocks in a
	given snapshot are collectively called an "IV set".
	When ZFS performs a raw send, the IV set is transferred from the source
	to the destination in the send stream.
	When ZFS performs a non-raw send, the data is decrypted by the source
	system and re-encrypted by the destination system, creating a snapshot with
	effectively the same data, but a different IV set.
	In order for decryption to work after a raw send, ZFS must ensure that
	the IV set used on both the source and destination side match.
	When an incremental raw receive is performed on
	top of an existing snapshot, ZFS will check to confirm that the "from"
	snapshot on both the source and destination were using the same IV set,
	ensuring the new IV set is consistent.
	.Pp
	The name of the snapshot
	.Pq and file system, if a full stream is received
	that this subcommand creates depends on the argument type and the use of the
	.Fl d
	or
	.Fl e
	options.
	.Pp
	If the argument is a snapshot name, the specified
	.Ar snapshot
	is created.
	If the argument is a file system or volume name, a snapshot with the same name
	as the sent snapshot is created within the specified
	.Ar filesystem
	or
	.Ar volume .
	If neither of the
	.Fl d
	or
	.Fl e
	options are specified, the provided target snapshot name is used exactly as
	provided.
	.Pp
	The
	.Fl d
	and
	.Fl e
	options cause the file system name of the target snapshot to be determined by
	appending a portion of the sent snapshot's name to the specified target
	.Ar filesystem .
	If the
	.Fl d
	option is specified, all but the first element of the sent snapshot's file
	system path
	.Pq usually the pool name
	is used and any required intermediate file systems within the specified one are
	created.
	If the
	.Fl e
	option is specified, then only the last element of the sent snapshot's file
	system name
	.Pq i.e. the name of the source file system itself
	is used as the target file system name.
	.Bl -tag -width "-F"
	.It Fl F
	Force a rollback of the file system to the most recent snapshot before
	performing the receive operation.
	If receiving an incremental replication stream
	.Po for example, one generated by
	.Nm zfs Cm send Fl R Op Fl i Ns \| Ns Fl I
	.Pc ,
	destroy snapshots and file systems that do not exist on the sending side.
	.It Fl d
	Discard the first element of the sent snapshot's file system name, using the
	remaining elements to determine the name of the target file system for the new
	snapshot as described in the paragraph above.
	.It Fl e
	Discard all but the last element of the sent snapshot's file system name, using
	that element to determine the name of the target file system for the new
	snapshot as described in the paragraph above.
	.It Fl h
	Skip the receive of holds.
	There is no effect if holds are not sent.
	.It Fl M
	Force an unmount of the file system while receiving a snapshot.
	This option is not supported on Linux.
	.It Fl n
	Do not actually receive the stream.
	This can be useful in conjunction with the
	.Fl v
	option to verify the name the receive operation would use.
	.It Fl o Sy origin Ns = Ns Ar snapshot
	Forces the stream to be received as a clone of the given snapshot.
	If the stream is a full send stream, this will create the filesystem
	described by the stream as a clone of the specified snapshot.
	Which snapshot was specified will not affect the success or failure of the
	receive, as long as the snapshot does exist.
	If the stream is an incremental send stream, all the normal verification will be
	performed.
	.It Fl o Em property Ns = Ns Ar value
	Sets the specified property as if the command
	.Nm zfs Cm set Em property Ns = Ns Ar value
	was invoked immediately before the receive.
	When receiving a stream from
	.Nm zfs Cm send Fl R ,
	causes the property to be inherited by all descendant datasets, as through
	.Nm zfs Cm inherit Em property
	was run on any descendant datasets that have this property set on the
	sending system.
	.Pp
	If the send stream was sent with
	.Fl c
	then overriding the
	.Sy compression
	property will have no affect on received data but the
	.Sy compression
	property will be set.
	To have the data recompressed on receive remove the
	.Fl c
	flag from the send stream.
	.Pp
	Any editable property can be set at receive time.
	Set-once properties bound
	to the received data, such as
	.Sy normalization
	and
	.Sy casesensitivity ,
	cannot be set at receive time even when the datasets are newly created by
	.Nm zfs Cm receive .
	Additionally both settable properties
	.Sy version
	and
	.Sy volsize
	cannot be set at receive time.
	.Pp
	The
	.Fl o
	option may be specified multiple times, for different properties.
	An error results if the same property is specified in multiple
	.Fl o
	or
	.Fl x
	options.
	.Pp
	The
	.Fl o
	option may also be used to override encryption properties upon initial receive.
	This allows unencrypted streams to be received as encrypted datasets.
	To cause the received dataset (or root dataset of a recursive stream) to be
	received as an encryption root, specify encryption properties in the same
	manner as is required for
	.Nm zfs Cm create .
	For instance:
	.Dl # Nm zfs Cm send Pa tank/test@snap1 \| Nm zfs Cm recv Fl o Sy encryption Ns = Ns Sy on Fl o keyformat=passphrase Fl o Sy keylocation Ns = Ns Pa file:///path/to/keyfile
	.Pp
	Note that
	.Fl o Sy keylocation Ns = Ns Sy prompt
	may not be specified here, since the standard input
	is already being utilized for the send stream.
	Once the receive has completed, you can use
	.Nm zfs Cm set
	to change this setting after the fact.
	Similarly, you can receive a dataset as an encrypted child by specifying
	.Op Fl x Ar encryption
	to force the property to be inherited.
	Overriding encryption properties (except for
	.Sy keylocation )
	is not possible with raw send streams.
	.It Fl s
	If the receive is interrupted, save the partially received state, rather
	than deleting it.
	Interruption may be due to premature termination of the stream
	.Po e.g. due to network failure or failure of the remote system
	if the stream is being read over a network connection
	.Pc ,
	a checksum error in the stream, termination of the
	.Nm zfs Cm receive
	process, or unclean shutdown of the system.
	.Pp
	The receive can be resumed with a stream generated by
	.Nm zfs Cm send Fl t Ar token ,
	where the
	.Ar token
	is the value of the
	.Sy receive_resume_token
	property of the filesystem or volume which is received into.
	.Pp
	To use this flag, the storage pool must have the
	.Sy extensible_dataset
	feature enabled.
	See
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	for details on ZFS feature flags.
	.It Fl u
	File system that is associated with the received stream is not mounted.
	.It Fl v
	Print verbose information about the stream and the time required to perform the
	receive operation.
	.It Fl x Em property
	Ensures that the effective value of the specified property after the
	receive is unaffected by the value of that property in the send stream (if any),
	as if the property had been excluded from the send stream.
	.Pp
	If the specified property is not present in the send stream, this option does
	nothing.
	.Pp
	If a received property needs to be overridden, the effective value will be
	set or inherited, depending on whether the property is inheritable or not.
	.Pp
	In the case of an incremental update,
	.Fl x
	leaves any existing local setting or explicit inheritance unchanged.
	.Pp
	All
	.Fl o
	restrictions (e.g. set-once) apply equally to
	.Fl x .
	.El
	.It Xo
	.Nm zfs
	.Cm receive
	.Fl A
	.Ar filesystem Ns \| Ns Ar volume
	.Xc
	Abort an interrupted
	.Nm zfs Cm receive Fl s ,
	deleting its saved partially received state.
	.El
	.
	.Sh SEE ALSO
	.Xr zfs-send 8 ,
	.Xr zstream 8
	diff --git a/sys/contrib/openzfs/man/man8/zfs-send.8 b/sys/contrib/openzfs/man/man8/zfs-send.8
	index 47b6c47ad03e..a3d08fbf6e2c 100644
	--- a/sys/contrib/openzfs/man/man8/zfs-send.8
	+++ b/sys/contrib/openzfs/man/man8/zfs-send.8
	@@ -1,648 +1,648 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\"
	.Dd April 15, 2021
	.Dt ZFS-SEND 8
	.Os
	.
	.Sh NAME
	.Nm zfs-send
	.Nd generate backup stream of ZFS dataset
	.Sh SYNOPSIS
	.Nm zfs
	.Cm send
	.Op Fl DLPRbcehnpsvw
	.Op Oo Fl I Ns \| Ns Fl i Oc Ar snapshot
	.Ar snapshot
	.Nm zfs
	.Cm send
	.Op Fl DLPRcenpsvw
	.Op Fl i Ar snapshot Ns \| Ns Ar bookmark
	.Ar filesystem Ns \| Ns Ar volume Ns \| Ns Ar snapshot
	.Nm zfs
	.Cm send
	.Fl -redact Ar redaction_bookmark
	.Op Fl DLPcenpv
	.Op Fl i Ar snapshot Ns \| Ns Ar bookmark
	.Ar snapshot
	.Nm zfs
	.Cm send
	.Op Fl Penv
	.Fl t
	.Ar receive_resume_token
	.Nm zfs
	.Cm send
	.Op Fl Pnv
	.Fl S Ar filesystem
	.Nm zfs
	.Cm redact
	.Ar snapshot redaction_bookmark
	.Ar redaction_snapshot Ns …
	.
	.Sh DESCRIPTION
	.Bl -tag -width ""
	.It Xo
	.Nm zfs
	.Cm send
	.Op Fl DLPRbcehnpvw
	.Op Oo Fl I Ns \| Ns Fl i Oc Ar snapshot
	.Ar snapshot
	.Xc
	Creates a stream representation of the second
	.Ar snapshot ,
	which is written to standard output.
	The output can be redirected to a file or to a different system
	.Po for example, using
	.Xr ssh 1
	.Pc .
	By default, a full stream is generated.
	.Bl -tag -width "-D"
	.It Fl D , -dedup
	Deduplicated send is no longer supported.
	This flag is accepted for backwards compatibility, but a regular,
	non-deduplicated stream will be generated.
	.It Fl I Ar snapshot
	Generate a stream package that sends all intermediary snapshots from the first
	snapshot to the second snapshot.
	For example,
	.Fl I Em @a Em fs@d
	is similar to
	.Fl i Em @a Em fs@b Ns \&; Fl i Em @b Em fs@c Ns \&; Fl i Em @c Em fs@d .
	The incremental source may be specified as with the
	.Fl i
	option.
	.It Fl L , -large-block
	Generate a stream which may contain blocks larger than 128KB.
	This flag has no effect if the
	.Sy large_blocks
	pool feature is disabled, or if the
	.Sy recordsize
	property of this filesystem has never been set above 128KB.
	The receiving system must have the
	.Sy large_blocks
	pool feature enabled as well.
	See
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	for details on ZFS feature flags and the
	.Sy large_blocks
	feature.
	.It Fl P , -parsable
	Print machine-parsable verbose information about the stream package generated.
	.It Fl R , -replicate
	Generate a replication stream package, which will replicate the specified
	file system, and all descendent file systems, up to the named snapshot.
	When received, all properties, snapshots, descendent file systems, and clones
	are preserved.
	.Pp
	If the
	.Fl i
	or
	.Fl I
	flags are used in conjunction with the
	.Fl R
	flag, an incremental replication stream is generated.
	The current values of properties, and current snapshot and file system names are
	set when the stream is received.
	If the
	.Fl F
	flag is specified when this stream is received, snapshots and file systems that
	do not exist on the sending side are destroyed.
	If the
	.Fl R
	flag is used to send encrypted datasets, then
	.Fl w
	must also be specified.
	.It Fl e , -embed
	Generate a more compact stream by using
	.Sy WRITE_EMBEDDED
	records for blocks which are stored more compactly on disk by the
	.Sy embedded_data
	pool feature.
	This flag has no effect if the
	.Sy embedded_data
	feature is disabled.
	The receiving system must have the
	.Sy embedded_data
	feature enabled.
	If the
	.Sy lz4_compress
	feature is active on the sending system, then the receiving system must have
	that feature enabled as well.
	Datasets that are sent with this flag may not be
	received as an encrypted dataset, since encrypted datasets cannot use the
	.Sy embedded_data
	feature.
	See
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	for details on ZFS feature flags and the
	.Sy embedded_data
	feature.
	.It Fl b , -backup
	Sends only received property values whether or not they are overridden by local
	settings, but only if the dataset has ever been received.
	Use this option when you want
	.Nm zfs Cm receive
	to restore received properties backed up on the sent dataset and to avoid
	sending local settings that may have nothing to do with the source dataset,
	but only with how the data is backed up.
	.It Fl c , -compressed
	Generate a more compact stream by using compressed WRITE records for blocks
	which are compressed on disk and in memory
	.Po see the
	.Sy compression
	property for details
	.Pc .
	If the
	.Sy lz4_compress
	feature is active on the sending system, then the receiving system must have
	that feature enabled as well.
	If the
	.Sy large_blocks
	feature is enabled on the sending system but the
	.Fl L
	option is not supplied in conjunction with
	.Fl c ,
	then the data will be decompressed before sending so it can be split into
	smaller block sizes.
	Streams sent with
	.Fl c
	will not have their data recompressed on the receiver side using
	.Fl o Sy compress Ns = Ar value .
	The data will stay compressed as it was from the sender.
	The new compression property will be set for future data.
	.It Fl w , -raw
	For encrypted datasets, send data exactly as it exists on disk.
	This allows backups to be taken even if encryption keys are not currently loaded.
	The backup may then be received on an untrusted machine since that machine will
	not have the encryption keys to read the protected data or alter it without
	being detected.
	Upon being received, the dataset will have the same encryption
	keys as it did on the send side, although the
	.Sy keylocation
	property will be defaulted to
	.Sy prompt
	if not otherwise provided.
	For unencrypted datasets, this flag will be equivalent to
	.Fl Lec .
	Note that if you do not use this flag for sending encrypted datasets, data will
	be sent unencrypted and may be re-encrypted with a different encryption key on
	the receiving system, which will disable the ability to do a raw send to that
	system for incrementals.
	.It Fl h , -holds
	Generate a stream package that includes any snapshot holds (created with the
	.Nm zfs Cm hold
	command), and indicating to
	.Nm zfs Cm receive
	that the holds be applied to the dataset on the receiving system.
	.It Fl i Ar snapshot
	Generate an incremental stream from the first
	.Ar snapshot
	.Pq the incremental source
	to the second
	.Ar snapshot
	.Pq the incremental target .
	The incremental source can be specified as the last component of the snapshot
	name
	.Po the
	.Sy @
	character and following
	.Pc
	and it is assumed to be from the same file system as the incremental target.
	.Pp
	If the destination is a clone, the source may be the origin snapshot, which must
	be fully specified
	.Po for example,
	.Em pool/fs@origin ,
	not just
	.Em @origin
	.Pc .
	.It Fl n , -dryrun
	Do a dry-run
	.Pq Qq No-op
	send.
	Do not generate any actual send data.
	This is useful in conjunction with the
	.Fl v
	or
	.Fl P
	flags to determine what data will be sent.
	In this case, the verbose output will be written to standard output
	.Po contrast with a non-dry-run, where the stream is written to standard output
	and the verbose output goes to standard error
	.Pc .
	.It Fl p , -props
	Include the dataset's properties in the stream.
	This flag is implicit when
	.Fl R
	is specified.
	The receiving system must also support this feature.
	Sends of encrypted datasets must use
	.Fl w
	when using this flag.
	.It Fl s , -skip-missing
	Allows sending a replication stream even when there are snapshots missing in the
	hierarchy.
	When a snapshot is missing, instead of throwing an error and aborting the send,
	a warning is printed to the standard error stream and the dataset to which it belongs
	and its descendents are skipped.
	This flag can only be used in conjunction with
	.Fl R .
	.It Fl v , -verbose
	Print verbose information about the stream package generated.
	This information includes a per-second report of how much data has been sent.
	.Pp
	The format of the stream is committed.
	You will be able to receive your streams on future versions of ZFS.
	.El
	.It Xo
	.Nm zfs
	.Cm send
	.Op Fl DLPRcenpvw
	.Op Fl i Ar snapshot Ns \| Ns Ar bookmark
	.Ar filesystem Ns \| Ns Ar volume Ns \| Ns Ar snapshot
	.Xc
	Generate a send stream, which may be of a filesystem, and may be incremental
	from a bookmark.
	If the destination is a filesystem or volume, the pool must be read-only, or the
	filesystem must not be mounted.
	When the stream generated from a filesystem or volume is received, the default
	snapshot name will be
	.Qq --head-- .
	.Bl -tag -width "-L"
	.It Fl L , -large-block
	Generate a stream which may contain blocks larger than 128KB.
	This flag has no effect if the
	.Sy large_blocks
	pool feature is disabled, or if the
	.Sy recordsize
	property of this filesystem has never been set above 128KB.
	The receiving system must have the
	.Sy large_blocks
	pool feature enabled as well.
	See
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	for details on ZFS feature flags and the
	.Sy large_blocks
	feature.
	.It Fl P , -parsable
	Print machine-parsable verbose information about the stream package generated.
	.It Fl c , -compressed
	Generate a more compact stream by using compressed WRITE records for blocks
	which are compressed on disk and in memory
	.Po see the
	.Sy compression
	property for details
	.Pc .
	If the
	.Sy lz4_compress
	feature is active on the sending system, then the receiving system must have
	that feature enabled as well.
	If the
	.Sy large_blocks
	feature is enabled on the sending system but the
	.Fl L
	option is not supplied in conjunction with
	.Fl c ,
	then the data will be decompressed before sending so it can be split into
	smaller block sizes.
	.It Fl w , -raw
	For encrypted datasets, send data exactly as it exists on disk.
	This allows backups to be taken even if encryption keys are not currently loaded.
	The backup may then be received on an untrusted machine since that machine will
	not have the encryption keys to read the protected data or alter it without
	being detected.
	Upon being received, the dataset will have the same encryption
	keys as it did on the send side, although the
	.Sy keylocation
	property will be defaulted to
	.Sy prompt
	if not otherwise provided.
	For unencrypted datasets, this flag will be equivalent to
	.Fl Lec .
	Note that if you do not use this flag for sending encrypted datasets, data will
	be sent unencrypted and may be re-encrypted with a different encryption key on
	the receiving system, which will disable the ability to do a raw send to that
	system for incrementals.
	.It Fl e , -embed
	Generate a more compact stream by using
	.Sy WRITE_EMBEDDED
	records for blocks which are stored more compactly on disk by the
	.Sy embedded_data
	pool feature.
	This flag has no effect if the
	.Sy embedded_data
	feature is disabled.
	The receiving system must have the
	.Sy embedded_data
	feature enabled.
	If the
	.Sy lz4_compress
	feature is active on the sending system, then the receiving system must have
	that feature enabled as well.
	Datasets that are sent with this flag may not be received as an encrypted dataset,
	since encrypted datasets cannot use the
	.Sy embedded_data
	feature.
	See
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	for details on ZFS feature flags and the
	.Sy embedded_data
	feature.
	.It Fl i Ar snapshot Ns \| Ns Ar bookmark
	Generate an incremental send stream.
	The incremental source must be an earlier snapshot in the destination's history.
	It will commonly be an earlier snapshot in the destination's file system, in
	which case it can be specified as the last component of the name
	.Po the
	.Sy #
	or
	.Sy @
	character and following
	.Pc .
	.Pp
	If the incremental target is a clone, the incremental source can be the origin
	snapshot, or an earlier snapshot in the origin's filesystem, or the origin's
	origin, etc.
	.It Fl n , -dryrun
	Do a dry-run
	.Pq Qq No-op
	send.
	Do not generate any actual send data.
	This is useful in conjunction with the
	.Fl v
	or
	.Fl P
	flags to determine what data will be sent.
	In this case, the verbose output will be written to standard output
	.Po contrast with a non-dry-run, where the stream is written to standard output
	and the verbose output goes to standard error
	.Pc .
	.It Fl v , -verbose
	Print verbose information about the stream package generated.
	This information includes a per-second report of how much data has been sent.
	.El
	.It Xo
	.Nm zfs
	.Cm send
	.Fl -redact Ar redaction_bookmark
	.Op Fl DLPcenpv
	.Op Fl i Ar snapshot Ns \| Ns Ar bookmark
	.Ar snapshot
	.Xc
	Generate a redacted send stream.
	This send stream contains all blocks from the snapshot being sent that aren't
	included in the redaction list contained in the bookmark specified by the
	.Fl -redact
	(or
	.Fl d )
	flag.
	The resulting send stream is said to be redacted with respect to the snapshots
	the bookmark specified by the
	.Fl -redact No flag was created with.
	The bookmark must have been created by running
	.Nm zfs Cm redact
	on the snapshot being sent.
	.Pp
	This feature can be used to allow clones of a filesystem to be made available on
	a remote system, in the case where their parent need not (or needs to not) be
	usable.
	For example, if a filesystem contains sensitive data, and it has clones where
	that sensitive data has been secured or replaced with dummy data, redacted sends
	can be used to replicate the secured data without replicating the original
	sensitive data, while still sharing all possible blocks.
	A snapshot that has been redacted with respect to a set of snapshots will
	contain all blocks referenced by at least one snapshot in the set, but will
	contain none of the blocks referenced by none of the snapshots in the set.
	In other words, if all snapshots in the set have modified a given block in the
	parent, that block will not be sent; but if one or more snapshots have not
	modified a block in the parent, they will still reference the parent's block, so
	that block will be sent.
	Note that only user data will be redacted.
	.Pp
	When the redacted send stream is received, we will generate a redacted
	snapshot.
	Due to the nature of redaction, a redacted dataset can only be used in the
	following ways:
	.Bl -enum -width "a."
	.It
	To receive, as a clone, an incremental send from the original snapshot to one
	of the snapshots it was redacted with respect to.
	In this case, the stream will produce a valid dataset when received because all
	blocks that were redacted in the parent are guaranteed to be present in the
	child's send stream.
	This use case will produce a normal snapshot, which can be used just like other
	snapshots.
	.
	.It
	To receive an incremental send from the original snapshot to something
	redacted with respect to a subset of the set of snapshots the initial snapshot
	was redacted with respect to.
	In this case, each block that was redacted in the original is still redacted
	(redacting with respect to additional snapshots causes less data to be redacted
	(because the snapshots define what is permitted, and everything else is
	redacted)).
	This use case will produce a new redacted snapshot.
	.It
	To receive an incremental send from a redaction bookmark of the original
	snapshot that was created when redacting with respect to a subset of the set of
	snapshots the initial snapshot was created with respect to
	anything else.
	A send stream from such a redaction bookmark will contain all of the blocks
	necessary to fill in any redacted data, should it be needed, because the sending
	system is aware of what blocks were originally redacted.
	This will either produce a normal snapshot or a redacted one, depending on
	whether the new send stream is redacted.
	.It
	To receive an incremental send from a redacted version of the initial
	snapshot that is redacted with respect to a subject of the set of snapshots the
	initial snapshot was created with respect to.
	A send stream from a compatible redacted dataset will contain all of the blocks
	necessary to fill in any redacted data.
	This will either produce a normal snapshot or a redacted one, depending on
	whether the new send stream is redacted.
	.It
	To receive a full send as a clone of the redacted snapshot.
	Since the stream is a full send, it definitionally contains all the data needed
	to create a new dataset.
	This use case will either produce a normal snapshot or a redacted one, depending
	on whether the full send stream was redacted.
	.El
	.Pp
	These restrictions are detected and enforced by
	.Nm zfs Cm receive ;
	a redacted send stream will contain the list of snapshots that the stream is
	redacted with respect to.
	These are stored with the redacted snapshot, and are used to detect and
	correctly handle the cases above.
	Note that for technical reasons,
	raw sends and redacted sends cannot be combined at this time.
	.It Xo
	.Nm zfs
	.Cm send
	.Op Fl Penv
	.Fl t
	.Ar receive_resume_token
	.Xc
	Creates a send stream which resumes an interrupted receive.
	The
	.Ar receive_resume_token
	is the value of this property on the filesystem or volume that was being
	received into.
	See the documentation for
	.Nm zfs Cm receive Fl s
	for more details.
	.It Xo
	.Nm zfs
	.Cm send
	.Op Fl Pnv
	.Op Fl i Ar snapshot Ns \| Ns Ar bookmark
	.Fl S
	.Ar filesystem
	.Xc
	Generate a send stream from a dataset that has been partially received.
	.Bl -tag -width "-L"
	.It Fl S , -saved
	This flag requires that the specified filesystem previously received a resumable
	send that did not finish and was interrupted.
	In such scenarios this flag
	enables the user to send this partially received state.
	Using this flag will always use the last fully received snapshot
	as the incremental source if it exists.
	.El
	.It Xo
	.Nm zfs
	.Cm redact
	.Ar snapshot redaction_bookmark
	.Ar redaction_snapshot Ns …
	.Xc
	Generate a new redaction bookmark.
	In addition to the typical bookmark information, a redaction bookmark contains
	the list of redacted blocks and the list of redaction snapshots specified.
	The redacted blocks are blocks in the snapshot which are not referenced by any
	of the redaction snapshots.
	These blocks are found by iterating over the metadata in each redaction snapshot
	to determine what has been changed since the target snapshot.
	Redaction is designed to support redacted zfs sends; see the entry for
	.Nm zfs Cm send
	for more information on the purpose of this operation.
	If a redact operation fails partway through (due to an error or a system
	failure), the redaction can be resumed by rerunning the same command.
	.El
	.Ss Redaction
	ZFS has support for a limited version of data subsetting, in the form of
	redaction.
	Using the
	.Nm zfs Cm redact
	command, a
	.Sy redaction bookmark
	can be created that stores a list of blocks containing sensitive information.
	When provided to
	.Nm zfs Cm send ,
	this causes a
	.Sy redacted send
	to occur.
	Redacted sends omit the blocks containing sensitive information,
	replacing them with REDACT records.
	When these send streams are received, a
	.Sy redacted dataset
	is created.
	A redacted dataset cannot be mounted by default, since it is incomplete.
	It can be used to receive other send streams.
	In this way datasets can be used for data backup and replication,
	with all the benefits that zfs send and receive have to offer,
	while protecting sensitive information from being
	stored on less-trusted machines or services.
	.Pp
	For the purposes of redaction, there are two steps to the process.
	A redact step, and a send/receive step.
	First, a redaction bookmark is created.
	This is done by providing the
	.Nm zfs Cm redact
	command with a parent snapshot, a bookmark to be created, and a number of
	redaction snapshots.
	These redaction snapshots must be descendants of the parent snapshot,
	and they should modify data that is considered sensitive in some way.
	Any blocks of data modified by all of the redaction snapshots will
	be listed in the redaction bookmark, because it represents the truly sensitive
	information.
	When it comes to the send step, the send process will not send
	the blocks listed in the redaction bookmark, instead replacing them with
	REDACT records.
	When received on the target system, this will create a
	redacted dataset, missing the data that corresponds to the blocks in the
	redaction bookmark on the sending system.
	The incremental send streams from
	the original parent to the redaction snapshots can then also be received on
	the target system, and this will produce a complete snapshot that can be used
	normally.
	Incrementals from one snapshot on the parent filesystem and another
	can also be done by sending from the redaction bookmark, rather than the
	snapshots themselves.
	.Pp
	In order to make the purpose of the feature more clear, an example is provided.
	Consider a zfs filesystem containing four files.
	These files represent information for an online shopping service.
	One file contains a list of usernames and passwords, another contains purchase histories,
	a third contains click tracking data, and a fourth contains user preferences.
	The owner of this data wants to make it available for their development teams to
	test against, and their market research teams to do analysis on.
	The development teams need information about user preferences and the click
	tracking data, while the market research teams need information about purchase
	histories and user preferences.
	Neither needs access to the usernames and passwords.
	However, because all of this data is stored in one ZFS filesystem,
	it must all be sent and received together.
	In addition, the owner of the data
	wants to take advantage of features like compression, checksumming, and
	snapshots, so they do want to continue to use ZFS to store and transmit their data.
	Redaction can help them do so.
	First, they would make two clones of a snapshot of the data on the source.
	In one clone, they create the setup they want their market research team to see;
	they delete the usernames and passwords file,
	and overwrite the click tracking data with dummy information.
	In another, they create the setup they want the development teams
	to see, by replacing the passwords with fake information and replacing the
	purchase histories with randomly generated ones.
	They would then create a redaction bookmark on the parent snapshot,
	using snapshots on the two clones as redaction snapshots.
	The parent can then be sent, redacted, to the target
	server where the research and development teams have access.
	Finally, incremental sends from the parent snapshot to each of the clones can be sent
	to and received on the target server; these snapshots are identical to the
	ones on the source, and are ready to be used, while the parent snapshot on the
	target contains none of the username and password data present on the source,
	because it was removed by the redacted send operation.
	.
	.Sh SEE ALSO
	.Xr zfs-bookmark 8 ,
	.Xr zfs-receive 8 ,
	.Xr zfs-redact 8 ,
	.Xr zfs-snapshot 8
	diff --git a/sys/contrib/openzfs/man/man8/zfs-set.8 b/sys/contrib/openzfs/man/man8/zfs-set.8
	index 83709fa6149c..a3588cc26638 100644
	--- a/sys/contrib/openzfs/man/man8/zfs-set.8
	+++ b/sys/contrib/openzfs/man/man8/zfs-set.8
	@@ -1,182 +1,182 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\"
	.Dd June 2, 2021
	.Dt ZFS-SET 8
	.Os
	.
	.Sh NAME
	.Nm zfs-set
	.Nd set properties on ZFS datasets
	.Sh SYNOPSIS
	.Nm zfs
	.Cm set
	.Ar property Ns = Ns Ar value Oo Ar property Ns = Ns Ar value Oc Ns …
	.Ar filesystem Ns \| Ns Ar volume Ns \| Ns Ar snapshot Ns …
	.Nm zfs
	.Cm get
	.Op Fl r Ns \| Ns Fl d Ar depth
	.Op Fl Hp
	.Oo Fl o Ar field Ns Oo , Ns Ar field Oc Ns … Oc
	.Oo Fl s Ar source Ns Oo , Ns Ar source Oc Ns … Oc
	.Oo Fl t Ar type Ns Oo , Ns Ar type Oc Ns … Oc
	.Cm all Ns \| Ns Ar property Ns Oo , Ns Ar property Oc Ns …
	.Oo Ar filesystem Ns \| Ns Ar volume Ns \| Ns Ar snapshot Ns \| Ns Ar bookmark Oc Ns …
	.Nm zfs
	.Cm inherit
	.Op Fl rS
	.Ar property Ar filesystem Ns \| Ns Ar volume Ns \| Ns Ar snapshot Ns …
	.
	.Sh DESCRIPTION
	.Bl -tag -width ""
	.It Xo
	.Nm zfs
	.Cm set
	.Ar property Ns = Ns Ar value Oo Ar property Ns = Ns Ar value Oc Ns …
	.Ar filesystem Ns \| Ns Ar volume Ns \| Ns Ar snapshot Ns …
	.Xc
	Only some properties can be edited.
	See
	-.Xr zfsprops 8
	+.Xr zfsprops 7
	for more information on what properties can be set and acceptable
	values.
	Numeric values can be specified as exact values, or in a human-readable form
	with a suffix of
	.Sy B , K , M , G , T , P , E , Z
	.Po for bytes, kilobytes, megabytes, gigabytes, terabytes, petabytes, exabytes,
	or zettabytes, respectively
	.Pc .
	User properties can be set on snapshots.
	For more information, see the
	.Em User Properties
	section of
	-.Xr zfsprops 8 .
	+.Xr zfsprops 7 .
	.It Xo
	.Nm zfs
	.Cm get
	.Op Fl r Ns \| Ns Fl d Ar depth
	.Op Fl Hp
	.Oo Fl o Ar field Ns Oo , Ns Ar field Oc Ns … Oc
	.Oo Fl s Ar source Ns Oo , Ns Ar source Oc Ns … Oc
	.Oo Fl t Ar type Ns Oo , Ns Ar type Oc Ns … Oc
	.Cm all Ns \| Ns Ar property Ns Oo , Ns Ar property Oc Ns …
	.Oo Ar filesystem Ns \| Ns Ar volume Ns \| Ns Ar snapshot Ns \| Ns Ar bookmark Oc Ns …
	.Xc
	Displays properties for the given datasets.
	If no datasets are specified, then the command displays properties for all
	datasets on the system.
	For each property, the following columns are displayed:
	.Bl -tag -compact -offset 4n -width "property"
	.It Sy name
	Dataset name
	.It Sy property
	Property name
	.It Sy value
	Property value
	.It Sy source
	Property source
	.Sy local , default , inherited , temporary , received , No or Sy - Pq none .
	.El
	.Pp
	All columns are displayed by default, though this can be controlled by using the
	.Fl o
	option.
	This command takes a comma-separated list of properties as described in the
	.Sx Native Properties
	and
	.Sx User Properties
	sections of
	-.Xr zfsprops 8 .
	+.Xr zfsprops 7 .
	.Pp
	The value
	.Sy all
	can be used to display all properties that apply to the given dataset's type
	.Pq Sy filesystem , volume , snapshot , No or Sy bookmark .
	.Bl -tag -width "-s source"
	.It Fl H
	Display output in a form more easily parsed by scripts.
	Any headers are omitted, and fields are explicitly separated by a single tab
	instead of an arbitrary amount of space.
	.It Fl d Ar depth
	Recursively display any children of the dataset, limiting the recursion to
	.Ar depth .
	A depth of
	.Sy 1
	will display only the dataset and its direct children.
	.It Fl o Ar field
	A comma-separated list of columns to display, defaults to
	.Sy name , Ns Sy property , Ns Sy value , Ns Sy source .
	.It Fl p
	Display numbers in parsable
	.Pq exact
	values.
	.It Fl r
	Recursively display properties for any children.
	.It Fl s Ar source
	A comma-separated list of sources to display.
	Those properties coming from a source other than those in this list are ignored.
	Each source must be one of the following:
	.Sy local , default , inherited , temporary , received , No or Sy none .
	The default value is all sources.
	.It Fl t Ar type
	A comma-separated list of types to display, where
	.Ar type
	is one of
	.Sy filesystem , snapshot , volume , bookmark , No or Sy all .
	.El
	.It Xo
	.Nm zfs
	.Cm inherit
	.Op Fl rS
	.Ar property Ar filesystem Ns \| Ns Ar volume Ns \| Ns Ar snapshot Ns …
	.Xc
	Clears the specified property, causing it to be inherited from an ancestor,
	restored to default if no ancestor has the property set, or with the
	.Fl S
	option reverted to the received value if one exists.
	See
	-.Xr zfsprops 8
	+.Xr zfsprops 7
	for a listing of default values, and details on which properties can be
	inherited.
	.Bl -tag -width "-r"
	.It Fl r
	Recursively inherit the given property for all children.
	.It Fl S
	Revert the property to the received value if one exists; otherwise operate as
	if the
	.Fl S
	option was not specified.
	.El
	.El
	.
	.Sh SEE ALSO
	-.Xr zfs-list 8 ,
	-.Xr zfsprops 8
	+.Xr zfsprops 7 ,
	+.Xr zfs-list 8
	diff --git a/sys/contrib/openzfs/man/man8/zfs-share.8 b/sys/contrib/openzfs/man/man8/zfs-share.8
	index 369f667c9d02..e30d538814ca 100644
	--- a/sys/contrib/openzfs/man/man8/zfs-share.8
	+++ b/sys/contrib/openzfs/man/man8/zfs-share.8
	@@ -1,90 +1,90 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\"
	.Dd June 30, 2019
	.Dt ZFS-SHARE 8
	.Os
	.
	.Sh NAME
	.Nm zfs-share
	.Nd share and unshare ZFS filesystems
	.Sh SYNOPSIS
	.Nm zfs
	.Cm share
	.Fl a Ns \| Ns Ar filesystem
	.Nm zfs
	.Cm unshare
	.Fl a Ns \| Ns Ar filesystem Ns \| Ns Ar mountpoint
	.
	.Sh DESCRIPTION
	.Bl -tag -width ""
	.It Xo
	.Nm zfs
	.Cm share
	.Fl a Ns \| Ns Ar filesystem
	.Xc
	Shares available ZFS file systems.
	.Bl -tag -width "-a"
	.It Fl a
	Share all available ZFS file systems.
	Invoked automatically as part of the boot process.
	.It Ar filesystem
	Share the specified filesystem according to the
	.Sy sharenfs
	and
	.Sy sharesmb
	properties.
	File systems are shared when the
	.Sy sharenfs
	or
	.Sy sharesmb
	property is set.
	.El
	.It Xo
	.Nm zfs
	.Cm unshare
	.Fl a Ns \| Ns Ar filesystem Ns \| Ns Ar mountpoint
	.Xc
	Unshares currently shared ZFS file systems.
	.Bl -tag -width "-a"
	.It Fl a
	Unshare all available ZFS file systems.
	Invoked automatically as part of the shutdown process.
	.It Ar filesystem Ns \| Ns Ar mountpoint
	Unshare the specified filesystem.
	The command can also be given a path to a ZFS file system shared on the system.
	.El
	.El
	.
	.Sh SEE ALSO
	.Xr exports 5 ,
	.Xr smb.conf 5 ,
	-.Xr zfsprops 8
	+.Xr zfsprops 7
	diff --git a/sys/contrib/openzfs/man/man8/zfs-snapshot.8 b/sys/contrib/openzfs/man/man8/zfs-snapshot.8
	index fdff39fbc4b8..225123f44b2b 100644
	--- a/sys/contrib/openzfs/man/man8/zfs-snapshot.8
	+++ b/sys/contrib/openzfs/man/man8/zfs-snapshot.8
	@@ -1,76 +1,76 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\"
	.Dd May 27, 2021
	.Dt ZFS-SNAPSHOT 8
	.Os
	.
	.Sh NAME
	.Nm zfs-snapshot
	.Nd create snapshots of ZFS datasets
	.Sh SYNOPSIS
	.Nm zfs
	.Cm snapshot
	.Op Fl r
	.Oo Fl o Ar property Ns = Ns Ar value Oc Ns …
	.Ar dataset Ns @ Ns Ar snapname Ns …
	.
	.Sh DESCRIPTION
	All previous modifications by successful system calls to the file system are
	part of the snapshots.
	Snapshots are taken atomically, so that all snapshots correspond to the same
	moment in time.
	.Nm zfs Cm snap
	can be used as an alias for
	.Nm zfs Cm snapshot .
	See the
	.Sx Snapshots
	section of
	-.Xr zfsconcepts 8
	+.Xr zfsconcepts 7
	for details.
	.Bl -tag -width "-o"
	.It Fl o Ar property Ns = Ns Ar value
	Set the specified property; see
	.Nm zfs Cm create
	for details.
	.It Fl r
	Recursively create snapshots of all descendent datasets
	.El
	.
	.Sh SEE ALSO
	.Xr zfs-bookmark 8 ,
	.Xr zfs-clone 8 ,
	.Xr zfs-destroy 8 ,
	.Xr zfs-diff 8 ,
	.Xr zfs-hold 8 ,
	.Xr zfs-rename 8 ,
	.Xr zfs-rollback 8 ,
	.Xr zfs-send 8
	diff --git a/sys/contrib/openzfs/man/man8/zfs-upgrade.8 b/sys/contrib/openzfs/man/man8/zfs-upgrade.8
	index 0ba276dc6ad5..f3620faa6135 100644
	--- a/sys/contrib/openzfs/man/man8/zfs-upgrade.8
	+++ b/sys/contrib/openzfs/man/man8/zfs-upgrade.8
	@@ -1,103 +1,103 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\"
	.Dd June 30, 2019
	.Dt ZFS-UPGRADE 8
	.Os
	.
	.Sh NAME
	.Nm zfs-upgrade
	.Nd manage on-disk version of ZFS filesystems
	.Sh SYNOPSIS
	.Nm zfs
	.Cm upgrade
	.Nm zfs
	.Cm upgrade
	.Fl v
	.Nm zfs
	.Cm upgrade
	.Op Fl r
	.Op Fl V Ar version
	.Fl a Ns \| Ns Ar filesystem
	.
	.Sh DESCRIPTION
	.Bl -tag -width ""
	.It Xo
	.Nm zfs
	.Cm upgrade
	.Xc
	Displays a list of file systems that are not the most recent version.
	.It Xo
	.Nm zfs
	.Cm upgrade
	.Fl v
	.Xc
	Displays a list of currently supported file system versions.
	.It Xo
	.Nm zfs
	.Cm upgrade
	.Op Fl r
	.Op Fl V Ar version
	.Fl a Ns \| Ns Ar filesystem
	.Xc
	Upgrades file systems to a new on-disk version.
	Once this is done, the file systems will no longer be accessible on systems
	running older versions of ZFS.
	.Nm zfs Cm send
	streams generated from new snapshots of these file systems cannot be accessed on
	systems running older versions of ZFS.
	.Pp
	In general, the file system version is independent of the pool version.
	See
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	for information on features of ZFS storage pools.
	.Pp
	In some cases, the file system version and the pool version are interrelated and
	the pool version must be upgraded before the file system version can be
	upgraded.
	.Bl -tag -width "filesystem"
	.It Fl V Ar version
	Upgrade to
	.Ar version .
	If not specified, upgrade to the most recent version.
	This
	option can only be used to increase the version number, and only up to the most
	recent version supported by this version of ZFS.
	.It Fl a
	Upgrade all file systems on all imported pools.
	.It Ar filesystem
	Upgrade the specified file system.
	.It Fl r
	Upgrade the specified file system and all descendent file systems.
	.El
	.El
	.Sh SEE ALSO
	.Xr zpool-upgrade 8
	diff --git a/sys/contrib/openzfs/man/man8/zfs-userspace.8 b/sys/contrib/openzfs/man/man8/zfs-userspace.8
	index d09e35e1fdd8..b7bd61b5709a 100644
	--- a/sys/contrib/openzfs/man/man8/zfs-userspace.8
	+++ b/sys/contrib/openzfs/man/man8/zfs-userspace.8
	@@ -1,187 +1,187 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\"
	.Dd June 30, 2019
	.Dt ZFS-USERSPACE 8
	.Os
	.
	.Sh NAME
	.Nm zfs-userspace
	.Nd display space and quotas of ZFS dataset
	.Sh SYNOPSIS
	.Nm zfs
	.Cm userspace
	.Op Fl Hinp
	.Oo Fl o Ar field Ns Oo , Ns Ar field Oc Ns … Oc
	.Oo Fl s Ar field Oc Ns …
	.Oo Fl S Ar field Oc Ns …
	.Oo Fl t Ar type Ns Oo , Ns Ar type Oc Ns … Oc
	.Ar filesystem Ns \| Ns Ar snapshot Ns \| Ns Ar path
	.Nm zfs
	.Cm groupspace
	.Op Fl Hinp
	.Oo Fl o Ar field Ns Oo , Ns Ar field Oc Ns … Oc
	.Oo Fl s Ar field Oc Ns …
	.Oo Fl S Ar field Oc Ns …
	.Oo Fl t Ar type Ns Oo , Ns Ar type Oc Ns … Oc
	.Ar filesystem Ns \| Ns Ar snapshot Ns \| Ns Ar path
	.Nm zfs
	.Cm projectspace
	.Op Fl Hp
	.Oo Fl o Ar field Ns Oo , Ns Ar field Oc Ns … Oc
	.Oo Fl s Ar field Oc Ns …
	.Oo Fl S Ar field Oc Ns …
	.Ar filesystem Ns \| Ns Ar snapshot Ns \| Ns Ar path
	.
	.Sh DESCRIPTION
	.Bl -tag -width ""
	.It Xo
	.Nm zfs
	.Cm userspace
	.Op Fl Hinp
	.Oo Fl o Ar field Ns Oo , Ns Ar field Oc Ns … Oc
	.Oo Fl s Ar field Oc Ns …
	.Oo Fl S Ar field Oc Ns …
	.Oo Fl t Ar type Ns Oo , Ns Ar type Oc Ns … Oc
	.Ar filesystem Ns \| Ns Ar snapshot Ns \| Ns Ar path
	.Xc
	Displays space consumed by, and quotas on, each user in the specified filesystem,
	snapshot, or path.
	If a path is given, the filesystem that contains that path will be used.
	This corresponds to the
	.Sy userused@ Ns Em user ,
	.Sy userobjused@ Ns Em user ,
	.Sy userquota@ Ns Em user ,
	and
	.Sy userobjquota@ Ns Em user
	properties.
	.Bl -tag -width "-S field"
	.It Fl H
	Do not print headers, use tab-delimited output.
	.It Fl S Ar field
	Sort by this field in reverse order.
	See
	.Fl s .
	.It Fl i
	Translate SID to POSIX ID.
	The POSIX ID may be ephemeral if no mapping exists.
	Normal POSIX interfaces
	.Pq like Xr stat 2 , Nm ls Fl l
	perform this translation, so the
	.Fl i
	option allows the output from
	.Nm zfs Cm userspace
	to be compared directly with those utilities.
	However,
	.Fl i
	may lead to confusion if some files were created by an SMB user before a
	SMB-to-POSIX name mapping was established.
	In such a case, some files will be owned by the SMB entity and some by the POSIX
	entity.
	However, the
	.Fl i
	option will report that the POSIX entity has the total usage and quota for both.
	.It Fl n
	Print numeric ID instead of user/group name.
	.It Fl o Ar field Ns Oo , Ns Ar field Oc Ns …
	Display only the specified fields from the following set:
	.Sy type ,
	.Sy name ,
	.Sy used ,
	.Sy quota .
	The default is to display all fields.
	.It Fl p
	Use exact
	.Pq parsable
	numeric output.
	.It Fl s Ar field
	Sort output by this field.
	The
	.Fl s
	and
	.Fl S
	flags may be specified multiple times to sort first by one field, then by
	another.
	The default is
	.Fl s Sy type Fl s Sy name .
	.It Fl t Ar type Ns Oo , Ns Ar type Oc Ns …
	Print only the specified types from the following set:
	.Sy all ,
	.Sy posixuser ,
	.Sy smbuser ,
	.Sy posixgroup ,
	.Sy smbgroup .
	The default is
	.Fl t Sy posixuser , Ns Sy smbuser .
	The default can be changed to include group types.
	.El
	.It Xo
	.Nm zfs
	.Cm groupspace
	.Op Fl Hinp
	.Oo Fl o Ar field Ns Oo , Ns Ar field Oc Ns … Oc
	.Oo Fl s Ar field Oc Ns …
	.Oo Fl S Ar field Oc Ns …
	.Oo Fl t Ar type Ns Oo , Ns Ar type Oc Ns … Oc
	.Ar filesystem Ns \| Ns Ar snapshot
	.Xc
	Displays space consumed by, and quotas on, each group in the specified
	filesystem or snapshot.
	This subcommand is identical to
	.Cm userspace ,
	except that the default types to display are
	.Fl t Sy posixgroup , Ns Sy smbgroup .
	.It Xo
	.Nm zfs
	.Cm projectspace
	.Op Fl Hp
	.Oo Fl o Ar field Ns Oo , Ns Ar field Oc Ns … Oc
	.Oo Fl s Ar field Oc Ns …
	.Oo Fl S Ar field Oc Ns …
	.Ar filesystem Ns \| Ns Ar snapshot Ns \| Ns Ar path
	.Xc
	Displays space consumed by, and quotas on, each project in the specified
	filesystem or snapshot.
	This subcommand is identical to
	.Cm userspace ,
	except that the project identifier is a numeral, not a name.
	So need neither the option
	.Fl i
	for SID to POSIX ID nor
	.Fl n
	for numeric ID, nor
	.Fl t
	for types.
	.El
	.
	.Sh SEE ALSO
	-.Xr zfs-set 8 ,
	-.Xr zfsprops 8
	+.Xr zfsprops 7 ,
	+.Xr zfs-set 8
	diff --git a/sys/contrib/openzfs/man/man8/zfs.8 b/sys/contrib/openzfs/man/man8/zfs.8
	index 16c874eb20de..fca1ba00da7d 100644
	--- a/sys/contrib/openzfs/man/man8/zfs.8
	+++ b/sys/contrib/openzfs/man/man8/zfs.8
	@@ -1,773 +1,773 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
	.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	.\" Copyright (c) 2011, Pawel Jakub Dawidek <pjd@FreeBSD.org>
	.\" Copyright (c) 2012, Glen Barber <gjb@FreeBSD.org>
	.\" Copyright (c) 2012, Bryan Drewery <bdrewery@FreeBSD.org>
	.\" Copyright (c) 2013, Steven Hartland <smh@FreeBSD.org>
	.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
	.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
	.\" Copyright (c) 2014 Integros [integros.com]
	.\" Copyright (c) 2014, Xin LI <delphij@FreeBSD.org>
	.\" Copyright (c) 2014-2015, The FreeBSD Foundation, All Rights Reserved.
	.\" Copyright (c) 2016 Nexenta Systems, Inc. All Rights Reserved.
	.\" Copyright 2019 Richard Laager. All rights reserved.
	.\" Copyright 2018 Nexenta Systems, Inc.
	.\" Copyright 2019 Joyent, Inc.
	.\"
	.Dd June 30, 2019
	.Dt ZFS 8
	.Os
	.
	.Sh NAME
	.Nm zfs
	.Nd configure ZFS datasets
	.Sh SYNOPSIS
	.Nm
	.Fl ?V
	.Nm
	.Cm version
	.Nm
	.Cm subcommand
	.Op Ar arguments
	.
	.Sh DESCRIPTION
	The
	.Nm
	command configures ZFS datasets within a ZFS storage pool, as described in
	.Xr zpool 8 .
	A dataset is identified by a unique path within the ZFS namespace.
	For example:
	.Dl pool/{filesystem,volume,snapshot}
	.Pp
	where the maximum length of a dataset name is
	.Sy MAXNAMELEN Pq 256B
	and the maximum amount of nesting allowed in a path is 50 levels deep.
	.Pp
	A dataset can be one of the following:
	.Bl -tag -offset Ds -width "file system"
	.It Sy file system
	Can be mounted within the standard system namespace and behaves like other file
	systems.
	While ZFS file systems are designed to be POSIX-compliant, known issues exist
	that prevent compliance in some cases.
	Applications that depend on standards conformance might fail due to non-standard
	behavior when checking file system free space.
	.It Sy volume
	A logical volume exported as a raw or block device.
	This type of dataset should only be used when a block device is required.
	File systems are typically used in most environments.
	.It Sy snapshot
	A read-only version of a file system or volume at a given point in time.
	It is specified as
	.Ar filesystem Ns @ Ns Ar name
	or
	.Ar volume Ns @ Ns Ar name .
	.It Sy bookmark
	Much like a
	.Sy snapshot ,
	but without the hold on on-disk data.
	It can be used as the source of a send (but not for a receive).
	It is specified as
	.Ar filesystem Ns # Ns Ar name
	or
	.Ar volume Ns # Ns Ar name .
	.El
	.Pp
	See
	-.Xr zfsconcepts 8
	+.Xr zfsconcepts 7
	for details.
	.
	.Ss Properties
	Properties are divided into two types: native properties and user-defined
	.Pq or Qq user
	properties.
	Native properties either export internal statistics or control ZFS behavior.
	In addition, native properties are either editable or read-only.
	User properties have no effect on ZFS behavior, but you can use them to annotate
	datasets in a way that is meaningful in your environment.
	For more information about properties, see
	-.Xr zfsprops 8 .
	+.Xr zfsprops 7 .
	.
	.Ss Encryption
	Enabling the
	.Sy encryption
	feature allows for the creation of encrypted filesystems and volumes.
	ZFS will encrypt file and zvol data, file attributes, ACLs, permission bits,
	directory listings, FUID mappings, and
	.Sy userused Ns / Ns Sy groupused Ns / Ns Sy projectused
	data.
	For an overview of encryption, see
	.Xr zfs-load-key 8 .
	.
	.Sh SUBCOMMANDS
	All subcommands that modify state are logged persistently to the pool in their
	original form.
	.Bl -tag -width ""
	.It Nm Fl ?
	Displays a help message.
	.It Xo
	.Nm
	.Fl V , -version
	.Xc
	.It Xo
	.Nm
	.Cm version
	.Xc
	Displays the software version of the
	.Nm
	userland utility and the zfs kernel module.
	.El
	.
	.Ss Dataset Management
	.Bl -tag -width ""
	.It Xr zfs-list 8
	Lists the property information for the given datasets in tabular form.
	.It Xr zfs-create 8
	Creates a new ZFS file system or volume.
	.It Xr zfs-destroy 8
	Destroys the given dataset(s), snapshot(s), or bookmark.
	.It Xr zfs-rename 8
	Renames the given dataset (filesystem or snapshot).
	.It Xr zfs-upgrade 8
	Manage upgrading the on-disk version of filesystems.
	.El
	.
	.Ss Snapshots
	.Bl -tag -width ""
	.It Xr zfs-snapshot 8
	Creates snapshots with the given names.
	.It Xr zfs-rollback 8
	Roll back the given dataset to a previous snapshot.
	.It Xr zfs-hold 8 Ns / Ns Xr zfs-release 8
	Add or remove a hold reference to the specified snapshot or snapshots.
	If a hold exists on a snapshot, attempts to destroy that snapshot by using the
	.Nm zfs Cm destroy
	command return
	.Sy EBUSY .
	.It Xr zfs-diff 8
	Display the difference between a snapshot of a given filesystem and another
	snapshot of that filesystem from a later time or the current contents of the
	filesystem.
	.El
	.
	.Ss Clones
	.Bl -tag -width ""
	.It Xr zfs-clone 8
	Creates a clone of the given snapshot.
	.It Xr zfs-promote 8
	Promotes a clone file system to no longer be dependent on its
	.Qq origin
	snapshot.
	.El
	.
	.Ss Send & Receive
	.Bl -tag -width ""
	.It Xr zfs-send 8
	Generate a send stream, which may be of a filesystem, and may be incremental
	from a bookmark.
	.It Xr zfs-receive 8
	Creates a snapshot whose contents are as specified in the stream provided on
	standard input.
	If a full stream is received, then a new file system is created as well.
	Streams are created using the
	.Xr zfs-send 8
	subcommand, which by default creates a full stream.
	.It Xr zfs-bookmark 8
	Creates a new bookmark of the given snapshot or bookmark.
	Bookmarks mark the point in time when the snapshot was created, and can be used
	as the incremental source for a
	.Nm zfs Cm send
	command.
	.It Xr zfs-redact 8
	Generate a new redaction bookmark.
	This feature can be used to allow clones of a filesystem to be made available on
	a remote system, in the case where their parent need not (or needs to not) be
	usable.
	.El
	.
	.Ss Properties
	.Bl -tag -width ""
	.It Xr zfs-get 8
	Displays properties for the given datasets.
	.It Xr zfs-set 8
	Sets the property or list of properties to the given value(s) for each dataset.
	.It Xr zfs-inherit 8
	Clears the specified property, causing it to be inherited from an ancestor,
	restored to default if no ancestor has the property set, or with the
	.Fl S
	option reverted to the received value if one exists.
	.El
	.
	.Ss Quotas
	.Bl -tag -width ""
	.It Xr zfs-userspace 8 Ns / Ns Xr zfs-groupspace 8 Ns / Ns Xr zfs-projectspace 8
	Displays space consumed by, and quotas on, each user, group, or project
	in the specified filesystem or snapshot.
	.It Xr zfs-project 8
	List, set, or clear project ID and/or inherit flag on the file(s) or directories.
	.El
	.
	.Ss Mountpoints
	.Bl -tag -width ""
	.It Xr zfs-mount 8
	Displays all ZFS file systems currently mounted, or mount ZFS filesystem
	on a path described by its
	.Sy mountpoint
	property.
	.It Xr zfs-unmount 8
	Unmounts currently mounted ZFS file systems.
	.El
	.
	.Ss Shares
	.Bl -tag -width ""
	.It Xr zfs-share 8
	Shares available ZFS file systems.
	.It Xr zfs-unshare 8
	Unshares currently shared ZFS file systems.
	.El
	.
	.Ss Delegated Administration
	.Bl -tag -width ""
	.It Xr zfs-allow 8
	Delegate permissions on the specified filesystem or volume.
	.It Xr zfs-unallow 8
	Remove delegated permissions on the specified filesystem or volume.
	.El
	.
	.Ss Encryption
	.Bl -tag -width ""
	.It Xr zfs-change-key 8
	Add or change an encryption key on the specified dataset.
	.It Xr zfs-load-key 8
	Load the key for the specified encrypted dataset, enabling access.
	.It Xr zfs-unload-key 8
	Unload a key for the specified dataset, removing the ability to access the dataset.
	.El
	.
	.Ss Channel Programs
	.Bl -tag -width ""
	.It Xr zfs-program 8
	Execute ZFS administrative operations
	programmatically via a Lua script-language channel program.
	.El
	.
	.Ss Jails
	.Bl -tag -width ""
	.It Xr zfs-jail 8
	Attaches a filesystem to a jail.
	.It Xr zfs-unjail 8
	Detaches a filesystem from a jail.
	.El
	.
	.Ss Waiting
	.Bl -tag -width ""
	.It Xr zfs-wait 8
	Wait for background activity in a filesystem to complete.
	.El
	.
	.Sh EXIT STATUS
	The
	.Nm
	utility exits
	.Sy 0
	on success,
	.Sy 1
	if an error occurs, and
	.Sy 2
	if invalid command line options were specified.
	.
	.Sh EXAMPLES
	.Bl -tag -width ""
	.
	.It Sy Example 1 : No Creating a ZFS File System Hierarchy
	The following commands create a file system named
	.Ar pool/home
	and a file system named
	.Ar pool/home/bob .
	The mount point
	.Pa /export/home
	is set for the parent file system, and is automatically inherited by the child
	file system.
	.Dl # Nm zfs Cm create Ar pool/home
	.Dl # Nm zfs Cm set Sy mountpoint Ns = Ns Ar /export/home pool/home
	.Dl # Nm zfs Cm create Ar pool/home/bob
	.
	.It Sy Example 2 : No Creating a ZFS Snapshot
	The following command creates a snapshot named
	.Ar yesterday .
	This snapshot is mounted on demand in the
	.Pa .zfs/snapshot
	directory at the root of the
	.Ar pool/home/bob
	file system.
	.Dl # Nm zfs Cm snapshot Ar pool/home/bob Ns @ Ns Ar yesterday
	.
	.It Sy Example 3 : No Creating and Destroying Multiple Snapshots
	The following command creates snapshots named
	.Ar yesterday No of Ar pool/home
	and all of its descendent file systems.
	Each snapshot is mounted on demand in the
	.Pa .zfs/snapshot
	directory at the root of its file system.
	The second command destroys the newly created snapshots.
	.Dl # Nm zfs Cm snapshot Fl r Ar pool/home Ns @ Ns Ar yesterday
	.Dl # Nm zfs Cm destroy Fl r Ar pool/home Ns @ Ns Ar yesterday
	.
	.It Sy Example 4 : No Disabling and Enabling File System Compression
	The following command disables the
	.Sy compression
	property for all file systems under
	.Ar pool/home .
	The next command explicitly enables
	.Sy compression
	for
	.Ar pool/home/anne .
	.Dl # Nm zfs Cm set Sy compression Ns = Ns Sy off Ar pool/home
	.Dl # Nm zfs Cm set Sy compression Ns = Ns Sy on Ar pool/home/anne
	.
	.It Sy Example 5 : No Listing ZFS Datasets
	The following command lists all active file systems and volumes in the system.
	Snapshots are displayed if
	.Sy listsnaps Ns = Ns Sy on .
	The default is
	.Sy off .
	See
	-.Xr zpoolprops 8
	+.Xr zpoolprops 7
	for more information on pool properties.
	.Bd -literal -compact -offset Ds
	.No # Nm zfs Cm list
	NAME USED AVAIL REFER MOUNTPOINT
	pool 450K 457G 18K /pool
	pool/home 315K 457G 21K /export/home
	pool/home/anne 18K 457G 18K /export/home/anne
	pool/home/bob 276K 457G 276K /export/home/bob
	.Ed
	.
	.It Sy Example 6 : No Setting a Quota on a ZFS File System
	The following command sets a quota of 50 Gbytes for
	.Ar pool/home/bob :
	.Dl # Nm zfs Cm set Sy quota Ns = Ns Ar 50G pool/home/bob
	.
	.It Sy Example 7 : No Listing ZFS Properties
	The following command lists all properties for
	.Ar pool/home/bob :
	.Bd -literal -compact -offset Ds
	.No # Nm zfs Cm get Sy all Ar pool/home/bob
	NAME PROPERTY VALUE SOURCE
	pool/home/bob type filesystem -
	pool/home/bob creation Tue Jul 21 15:53 2009 -
	pool/home/bob used 21K -
	pool/home/bob available 20.0G -
	pool/home/bob referenced 21K -
	pool/home/bob compressratio 1.00x -
	pool/home/bob mounted yes -
	pool/home/bob quota 20G local
	pool/home/bob reservation none default
	pool/home/bob recordsize 128K default
	pool/home/bob mountpoint /pool/home/bob default
	pool/home/bob sharenfs off default
	pool/home/bob checksum on default
	pool/home/bob compression on local
	pool/home/bob atime on default
	pool/home/bob devices on default
	pool/home/bob exec on default
	pool/home/bob setuid on default
	pool/home/bob readonly off default
	pool/home/bob zoned off default
	pool/home/bob snapdir hidden default
	pool/home/bob acltype off default
	pool/home/bob aclmode discard default
	pool/home/bob aclinherit restricted default
	pool/home/bob canmount on default
	pool/home/bob xattr on default
	pool/home/bob copies 1 default
	pool/home/bob version 4 -
	pool/home/bob utf8only off -
	pool/home/bob normalization none -
	pool/home/bob casesensitivity sensitive -
	pool/home/bob vscan off default
	pool/home/bob nbmand off default
	pool/home/bob sharesmb off default
	pool/home/bob refquota none default
	pool/home/bob refreservation none default
	pool/home/bob primarycache all default
	pool/home/bob secondarycache all default
	pool/home/bob usedbysnapshots 0 -
	pool/home/bob usedbydataset 21K -
	pool/home/bob usedbychildren 0 -
	pool/home/bob usedbyrefreservation 0 -
	.Ed
	.Pp
	The following command gets a single property value:
	.Bd -literal -compact -offset Ds
	.No # Nm zfs Cm get Fl H o Sy value compression Ar pool/home/bob
	on
	.Ed
	.Pp
	The following command lists all properties with local settings for
	.Ar pool/home/bob :
	.Bd -literal -compact -offset Ds
	.No # Nm zfs Cm get Fl r s Sy local Fl o Sy name , Ns Sy property , Ns Sy value all Ar pool/home/bob
	NAME PROPERTY VALUE
	pool/home/bob quota 20G
	pool/home/bob compression on
	.Ed
	.
	.It Sy Example 8 : No Rolling Back a ZFS File System
	The following command reverts the contents of
	.Ar pool/home/anne
	to the snapshot named
	.Ar yesterday ,
	deleting all intermediate snapshots:
	.Dl # Nm zfs Cm rollback Fl r Ar pool/home/anne Ns @ Ns Ar yesterday
	.
	.It Sy Example 9 : No Creating a ZFS Clone
	The following command creates a writable file system whose initial contents are
	the same as
	.Ar pool/home/bob@yesterday .
	.Dl # Nm zfs Cm clone Ar pool/home/bob@yesterday pool/clone
	.
	.It Sy Example 10 : No Promoting a ZFS Clone
	The following commands illustrate how to test out changes to a file system, and
	then replace the original file system with the changed one, using clones, clone
	promotion, and renaming:
	.Bd -literal -compact -offset Ds
	.No # Nm zfs Cm create Ar pool/project/production
	populate /pool/project/production with data
	.No # Nm zfs Cm snapshot Ar pool/project/production Ns @ Ns Ar today
	.No # Nm zfs Cm clone Ar pool/project/production@today pool/project/beta
	make changes to /pool/project/beta and test them
	.No # Nm zfs Cm promote Ar pool/project/beta
	.No # Nm zfs Cm rename Ar pool/project/production pool/project/legacy
	.No # Nm zfs Cm rename Ar pool/project/beta pool/project/production
	once the legacy version is no longer needed, it can be destroyed
	.No # Nm zfs Cm destroy Ar pool/project/legacy
	.Ed
	.
	.It Sy Example 11 : No Inheriting ZFS Properties
	The following command causes
	.Ar pool/home/bob No and Ar pool/home/anne
	to inherit the
	.Sy checksum
	property from their parent.
	.Dl # Nm zfs Cm inherit Sy checksum Ar pool/home/bob pool/home/anne
	.
	.It Sy Example 12 : No Remotely Replicating ZFS Data
	The following commands send a full stream and then an incremental stream to a
	remote machine, restoring them into
	.Em poolB/received/fs@a
	and
	.Em poolB/received/fs@b ,
	respectively.
	.Em poolB
	must contain the file system
	.Em poolB/received ,
	and must not initially contain
	.Em poolB/received/fs .
	.Bd -literal -compact -offset Ds
	.No # Nm zfs Cm send Ar pool/fs@a \|
	.No " " Nm ssh Ar host Nm zfs Cm receive Ar poolB/received/fs Ns @ Ns Ar a
	.No # Nm zfs Cm send Fl i Ar a pool/fs@b \|
	.No " " Nm ssh Ar host Nm zfs Cm receive Ar poolB/received/fs
	.Ed
	.
	.It Sy Example 13 : No Using the Nm zfs Cm receive Fl d No Option
	The following command sends a full stream of
	.Ar poolA/fsA/fsB@snap
	to a remote machine, receiving it into
	.Ar poolB/received/fsA/fsB@snap .
	The
	.Ar fsA/fsB@snap
	portion of the received snapshot's name is determined from the name of the sent
	snapshot.
	.Ar poolB
	must contain the file system
	.Ar poolB/received .
	If
	.Ar poolB/received/fsA
	does not exist, it is created as an empty file system.
	.Bd -literal -compact -offset Ds
	.No # Nm zfs Cm send Ar poolA/fsA/fsB@snap \|
	.No " " Nm ssh Ar host Nm zfs Cm receive Fl d Ar poolB/received
	.Ed
	.
	.It Sy Example 14 : No Setting User Properties
	The following example sets the user-defined
	.Ar com.example : Ns Ar department
	property for a dataset:
	.Dl # Nm zfs Cm set Ar com.example : Ns Ar department Ns = Ns Ar 12345 tank/accounting
	.
	.It Sy Example 15 : No Performing a Rolling Snapshot
	The following example shows how to maintain a history of snapshots with a
	consistent naming scheme.
	To keep a week's worth of snapshots, the user destroys the oldest snapshot,
	renames the remaining snapshots, and then creates a new snapshot, as follows:
	.Bd -literal -compact -offset Ds
	.No # Nm zfs Cm destroy Fl r Ar pool/users@7daysago
	.No # Nm zfs Cm rename Fl r Ar pool/users@6daysago No @ Ns Ar 7daysago
	.No # Nm zfs Cm rename Fl r Ar pool/users@5daysago No @ Ns Ar 6daysago
	.No # Nm zfs Cm rename Fl r Ar pool/users@4daysago No @ Ns Ar 5daysago
	.No # Nm zfs Cm rename Fl r Ar pool/users@3daysago No @ Ns Ar 4daysago
	.No # Nm zfs Cm rename Fl r Ar pool/users@2daysago No @ Ns Ar 3daysago
	.No # Nm zfs Cm rename Fl r Ar pool/users@yesterday No @ Ns Ar 2daysago
	.No # Nm zfs Cm rename Fl r Ar pool/users@today No @ Ns Ar yesterday
	.No # Nm zfs Cm snapshot Fl r Ar pool/users Ns @ Ns Ar today
	.Ed
	.
	.It Sy Example 16 : No Setting sharenfs Property Options on a ZFS File System
	The following commands show how to set
	.Sy sharenfs
	property options to enable read-write
	access for a set of IP addresses and to enable root access for system
	.Qq neo
	on the
	.Ar tank/home
	file system:
	.Dl # Nm zfs Cm set Sy sharenfs Ns = Ns ' Ns Ar rw Ns =@123.123.0.0/16,root= Ns Ar neo Ns ' tank/home
	.Pp
	If you are using DNS for host name resolution,
	specify the fully-qualified hostname.
	.
	.It Sy Example 17 : No Delegating ZFS Administration Permissions on a ZFS Dataset
	The following example shows how to set permissions so that user
	.Ar cindys
	can create, destroy, mount, and take snapshots on
	.Ar tank/cindys .
	The permissions on
	.Ar tank/cindys
	are also displayed.
	.Bd -literal -compact -offset Ds
	.No # Nm zfs Cm allow Sy cindys create , Ns Sy destroy , Ns Sy mount , Ns Sy snapshot Ar tank/cindys
	.No # Nm zfs Cm allow Ar tank/cindys
	---- Permissions on tank/cindys --------------------------------------
	Local+Descendent permissions:
	user cindys create,destroy,mount,snapshot
	.Ed
	.Pp
	Because the
	.Ar tank/cindys
	mount point permission is set to 755 by default, user
	.Ar cindys
	will be unable to mount file systems under
	.Ar tank/cindys .
	Add an ACE similar to the following syntax to provide mount point access:
	.Dl # Cm chmod No A+user: Ns Ar cindys Ns :add_subdirectory:allow Ar /tank/cindys
	.
	.It Sy Example 18 : No Delegating Create Time Permissions on a ZFS Dataset
	The following example shows how to grant anyone in the group
	.Ar staff
	to create file systems in
	.Ar tank/users .
	This syntax also allows staff members to destroy their own file systems, but not
	destroy anyone else's file system.
	The permissions on
	.Ar tank/users
	are also displayed.
	.Bd -literal -compact -offset Ds
	.No # Nm zfs Cm allow Ar staff Sy create , Ns Sy mount Ar tank/users
	.No # Nm zfs Cm allow Fl c Sy destroy Ar tank/users
	.No # Nm zfs Cm allow Ar tank/users
	---- Permissions on tank/users ---------------------------------------
	Permission sets:
	destroy
	Local+Descendent permissions:
	group staff create,mount
	.Ed
	.
	.It Sy Example 19 : No Defining and Granting a Permission Set on a ZFS Dataset
	The following example shows how to define and grant a permission set on the
	.Ar tank/users
	file system.
	The permissions on
	.Ar tank/users
	are also displayed.
	.Bd -literal -compact -offset Ds
	.No # Nm zfs Cm allow Fl s No @ Ns Ar pset Sy create , Ns Sy destroy , Ns Sy snapshot , Ns Sy mount Ar tank/users
	.No # Nm zfs Cm allow staff No @ Ns Ar pset tank/users
	.No # Nm zfs Cm allow Ar tank/users
	---- Permissions on tank/users ---------------------------------------
	Permission sets:
	@pset create,destroy,mount,snapshot
	Local+Descendent permissions:
	group staff @pset
	.Ed
	.
	.It Sy Example 20 : No Delegating Property Permissions on a ZFS Dataset
	The following example shows to grant the ability to set quotas and reservations
	on the
	.Ar users/home
	file system.
	The permissions on
	.Ar users/home
	are also displayed.
	.Bd -literal -compact -offset Ds
	.No # Nm zfs Cm allow Ar cindys Sy quota , Ns Sy reservation Ar users/home
	.No # Nm zfs Cm allow Ar users/home
	---- Permissions on users/home ---------------------------------------
	Local+Descendent permissions:
	user cindys quota,reservation
	cindys% zfs set quota=10G users/home/marks
	cindys% zfs get quota users/home/marks
	NAME PROPERTY VALUE SOURCE
	users/home/marks quota 10G local
	.Ed
	.
	.It Sy Example 21 : No Removing ZFS Delegated Permissions on a ZFS Dataset
	The following example shows how to remove the snapshot permission from the
	.Ar staff
	group on the
	.Sy tank/users
	file system.
	The permissions on
	.Sy tank/users
	are also displayed.
	.Bd -literal -compact -offset Ds
	.No # Nm zfs Cm unallow Ar staff Sy snapshot Ar tank/users
	.No # Nm zfs Cm allow Ar tank/users
	---- Permissions on tank/users ---------------------------------------
	Permission sets:
	@pset create,destroy,mount,snapshot
	Local+Descendent permissions:
	group staff @pset
	.Ed
	.
	.It Sy Example 22 : No Showing the differences between a snapshot and a ZFS Dataset
	The following example shows how to see what has changed between a prior
	snapshot of a ZFS dataset and its current state.
	The
	.Fl F
	option is used to indicate type information for the files affected.
	.Bd -literal -compact -offset Ds
	.No # Nm zfs Cm diff Fl F Ar tank/test@before tank/test
	M / /tank/test/
	M F /tank/test/linked (+1)
	R F /tank/test/oldname -> /tank/test/newname
	- F /tank/test/deleted
	+ F /tank/test/created
	M F /tank/test/modified
	.Ed
	.
	.It Sy Example 23 : No Creating a bookmark
	The following example create a bookmark to a snapshot.
	This bookmark can then be used instead of snapshot in send streams.
	.Dl # Nm zfs Cm bookmark Ar rpool Ns @ Ns Ar snapshot rpool Ns # Ns Ar bookmark
	.
	.It Sy Example 24 : No Setting Sy sharesmb No Property Options on a ZFS File System
	The following example show how to share SMB filesystem through ZFS.
	Note that a user and their password must be given.
	.Dl # Nm smbmount Ar //127.0.0.1/share_tmp /mnt/tmp Fl o No user=workgroup/turbo,password=obrut,uid=1000
	.Pp
	Minimal
	.Pa /etc/samba/smb.conf
	configuration is required, as follows.
	.Pp
	Samba will need to bind to the loopback interface for the ZFS utilities to
	communicate with Samba.
	This is the default behavior for most Linux distributions.
	.Pp
	Samba must be able to authenticate a user.
	This can be done in a number of ways
	.Pq Xr passwd 5 , LDAP , Xr smbpasswd 5 , &c.\& .
	How to do this is outside the scope of this document – refer to
	.Xr smb.conf 5
	for more information.
	.Pp
	See the
	.Sx USERSHARES
	section for all configuration options,
	in case you need to modify any options of the share afterwards.
	Do note that any changes done with the
	.Xr net 8
	command will be undone if the share is ever unshared (like via a reboot).
	.El
	.
	.Sh ENVIRONMENT VARIABLES
	.Bl -tag -width "ZFS_MOUNT_HELPER"
	.It Sy ZFS_MOUNT_HELPER
	Cause
	.Nm zfs Cm mount
	to use
	.Xr mount 8
	to mount ZFS datasets.
	This option is provided for backwards compatibility with older ZFS versions.
	.El
	.
	.Sh INTERFACE STABILITY
	.Sy Committed .
	.
	.Sh SEE ALSO
	.Xr attr 1 ,
	.Xr gzip 1 ,
	.Xr ssh 1 ,
	.Xr chmod 2 ,
	.Xr fsync 2 ,
	.Xr stat 2 ,
	.Xr write 2 ,
	.Xr acl 5 ,
	.Xr attributes 5 ,
	.Xr exports 5 ,
	+.Xr zfsconcepts 7 ,
	+.Xr zfsprops 7 ,
	.Xr exportfs 8 ,
	.Xr mount 8 ,
	.Xr net 8 ,
	.Xr selinux 8 ,
	.Xr zfs-allow 8 ,
	.Xr zfs-bookmark 8 ,
	.Xr zfs-change-key 8 ,
	.Xr zfs-clone 8 ,
	.Xr zfs-create 8 ,
	.Xr zfs-destroy 8 ,
	.Xr zfs-diff 8 ,
	.Xr zfs-get 8 ,
	.Xr zfs-groupspace 8 ,
	.Xr zfs-hold 8 ,
	.Xr zfs-inherit 8 ,
	.Xr zfs-jail 8 ,
	.Xr zfs-list 8 ,
	.Xr zfs-load-key 8 ,
	.Xr zfs-mount 8 ,
	.Xr zfs-program 8 ,
	.Xr zfs-project 8 ,
	.Xr zfs-projectspace 8 ,
	.Xr zfs-promote 8 ,
	.Xr zfs-receive 8 ,
	.Xr zfs-redact 8 ,
	.Xr zfs-release 8 ,
	.Xr zfs-rename 8 ,
	.Xr zfs-rollback 8 ,
	.Xr zfs-send 8 ,
	.Xr zfs-set 8 ,
	.Xr zfs-share 8 ,
	.Xr zfs-snapshot 8 ,
	.Xr zfs-unallow 8 ,
	.Xr zfs-unjail 8 ,
	.Xr zfs-unload-key 8 ,
	.Xr zfs-unmount 8 ,
	.Xr zfs-unshare 8 ,
	.Xr zfs-upgrade 8 ,
	.Xr zfs-userspace 8 ,
	.Xr zfs-wait 8 ,
	-.Xr zfsconcepts 8 ,
	-.Xr zfsprops 8 ,
	.Xr zpool 8
	diff --git a/sys/contrib/openzfs/man/man8/zgenhostid.8 b/sys/contrib/openzfs/man/man8/zgenhostid.8
	index 4f926f473b9c..0dcebef73c31 100644
	--- a/sys/contrib/openzfs/man/man8/zgenhostid.8
	+++ b/sys/contrib/openzfs/man/man8/zgenhostid.8
	@@ -1,94 +1,100 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	-.\"
	.\" Copyright (c) 2017 by Lawrence Livermore National Security, LLC.
	.\"
	.Dd May 26, 2021
	-.Dt ZGENHOSTID 8 SMM
	+.Dt ZGENHOSTID 8
	.Os
	+.
	.Sh NAME
	.Nm zgenhostid
	-.Nd generate and store a hostid in
	-.Em /etc/hostid
	+.Nd generate host ID into /etc/hostid
	.Sh SYNOPSIS
	.Nm
	.Op Fl f
	.Op Fl o Ar filename
	.Op Ar hostid
	+.
	.Sh DESCRIPTION
	Creates
	.Pa /etc/hostid
	-file and stores hostid in it.
	-If the user provides
	-.Op Ar hostid
	-on the command line, validates and stores that value.
	-Otherwise, randomly generates a value to store.
	-.Bl -tag -width "hostid"
	+file and stores the host ID in it.
	+If
	+.Ar hostid
	+was provided, validate and store that value.
	+Otherwise, randomly generate an ID.
	+.
	+.Sh OPTIONS
	+.Bl -tag -width "-o filename"
	.It Fl h
	Display a summary of the command-line options.
	.It Fl f
	-Force file overwrite.
	+Allow output overwrite.
	.It Fl o Ar filename
	Write to
	.Pa filename
	-instead of default
	-.Pa /etc/hostid
	+instead of the default
	+.Pa /etc/hostid .
	.It Ar hostid
	Specifies the value to be placed in
	.Pa /etc/hostid .
	It should be a number with a value between 1 and 2^32-1.
	-If it is 0, zgenhostid will generate a random hostid.
	+If
	+.Sy 0 ,
	+generate a random ID.
	This value
	-.Sy must
	+.Em must
	be unique among your systems.
	It
	-.Sy must
	-be expressed in hexadecimal and be exactly
	-.Em 8
	-digits long, optionally prefixed by
	-.Em 0x .
	+.Em must
	+be an 8-digit-long hexadecimal number, optionally prefixed by
	+.Qq 0x .
	.El
	+.
	.Sh FILES
	.Pa /etc/hostid
	+.
	.Sh EXAMPLES
	.Bl -tag -width Bd
	.It Generate a random hostid and store it
	-.Dl # zgenhostid
	+.Dl # Nm
	.It Record the libc-generated hostid in Pa /etc/hostid
	-.Dl # zgenhostid "$(hostid)"
	-.It Record a custom hostid (0xdeadbeef) in Pa /etc/hostid
	-.Dl # zgenhostid deadbeef
	-.It Record a custom hostid (0x01234567) in Pa /tmp/hostid No and ovewrite the file if it exists
	-.Dl # zgenhostid -f -o /tmp/hostid 0x01234567
	+.Dl # Nm Qq $ Ns Pq Nm hostid
	+.It Record a custom hostid Po Ar 0xdeadbeef Pc in Pa /etc/hostid
	+.Dl # Nm Ar deadbeef
	+.It Record a custom hostid Po Ar 0x01234567 Pc in Pa /tmp/hostid No and ovewrite the file if it exists
	+.Dl # Nm Fl f o Ar /tmp/hostid 0x01234567
	.El
	+.
	.Sh SEE ALSO
	.Xr genhostid 1 ,
	.Xr hostid 1 ,
	.Xr sethostid 3 ,
	-.Xr spl-module-parameters 5
	+.Xr spl 4
	+.
	.Sh HISTORY
	.Nm
	emulates the
	.Xr genhostid 1
	utility and is provided for use on systems which
	do not include the utility or do not provide the
	.Xr sethostid 3
	-call.
	+function.
	diff --git a/sys/contrib/openzfs/man/man8/zpool-add.8 b/sys/contrib/openzfs/man/man8/zpool-add.8
	index a0f15076f230..26cf33c5538c 100644
	--- a/sys/contrib/openzfs/man/man8/zpool-add.8
	+++ b/sys/contrib/openzfs/man/man8/zpool-add.8
	@@ -1,101 +1,101 @@
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\"
	.Dd May 27, 2021
	.Dt ZPOOL-ADD 8
	.Os
	.
	.Sh NAME
	.Nm zpool-add
	.Nd add vdevs to ZFS storage pool
	.Sh SYNOPSIS
	.Nm zpool
	.Cm add
	.Op Fl fgLnP
	.Oo Fl o Ar property Ns = Ns Ar value Oc
	.Ar pool vdev Ns …
	.
	.Sh DESCRIPTION
	Adds the specified virtual devices to the given pool.
	The
	.Ar vdev
	specification is described in the
	.Em Virtual Devices
	section of
	-.Xr zpoolconcepts 8 .
	+.Xr zpoolconcepts 7 .
	The behavior of the
	.Fl f
	option, and the device checks performed are described in the
	.Nm zpool Cm create
	subcommand.
	.Bl -tag -width Ds
	.It Fl f
	Forces use of
	.Ar vdev Ns s ,
	even if they appear in use or specify a conflicting replication level.
	Not all devices can be overridden in this manner.
	.It Fl g
	Display
	.Ar vdev ,
	GUIDs instead of the normal device names.
	These GUIDs can be used in place of
	device names for the zpool detach/offline/remove/replace commands.
	.It Fl L
	Display real paths for
	.Ar vdev Ns s
	resolving all symbolic links.
	This can be used to look up the current block
	device name regardless of the
	.Pa /dev/disk
	path used to open it.
	.It Fl n
	Displays the configuration that would be used without actually adding the
	.Ar vdev Ns s .
	The actual pool creation can still fail due to insufficient privileges or
	device sharing.
	.It Fl P
	Display real paths for
	.Ar vdev Ns s
	instead of only the last component of the path.
	This can be used in conjunction with the
	.Fl L
	flag.
	.It Fl o Ar property Ns = Ns Ar value
	Sets the given pool properties.
	See the
	-.Xr zpoolprops 8
	+.Xr zpoolprops 7
	manual page for a list of valid properties that can be set.
	The only property supported at the moment is
	.Sy ashift .
	.El
	.
	.Sh SEE ALSO
	.Xr zpool-attach 8 ,
	.Xr zpool-import 8 ,
	.Xr zpool-initialize 8 ,
	.Xr zpool-online 8 ,
	.Xr zpool-remove 8
	diff --git a/sys/contrib/openzfs/man/man8/zpool-attach.8 b/sys/contrib/openzfs/man/man8/zpool-attach.8
	index 04c0fca21d0d..19d8f6ac07ac 100644
	--- a/sys/contrib/openzfs/man/man8/zpool-attach.8
	+++ b/sys/contrib/openzfs/man/man8/zpool-attach.8
	@@ -1,98 +1,98 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\"
	.Dd May 15, 2020
	.Dt ZPOOL-ATTACH 8
	.Os
	.
	.Sh NAME
	.Nm zpool-attach
	.Nd attach new device to existing ZFS vdev
	.Sh SYNOPSIS
	.Nm zpool
	.Cm attach
	.Op Fl fsw
	.Oo Fl o Ar property Ns = Ns Ar value Oc
	.Ar pool device new_device
	.
	.Sh DESCRIPTION
	Attaches
	.Ar new_device
	to the existing
	.Ar device .
	The existing device cannot be part of a raidz configuration.
	If
	.Ar device
	is not currently part of a mirrored configuration,
	.Ar device
	automatically transforms into a two-way mirror of
	.Ar device
	and
	.Ar new_device .
	If
	.Ar device
	is part of a two-way mirror, attaching
	.Ar new_device
	creates a three-way mirror, and so on.
	In either case,
	.Ar new_device
	begins to resilver immediately and any running scrub is cancelled.
	.Bl -tag -width Ds
	.It Fl f
	Forces use of
	.Ar new_device ,
	even if it appears to be in use.
	Not all devices can be overridden in this manner.
	.It Fl o Ar property Ns = Ns Ar value
	Sets the given pool properties.
	See the
	-.Xr zpoolprops 8
	+.Xr zpoolprops 7
	manual page for a list of valid properties that can be set.
	The only property supported at the moment is
	.Sy ashift .
	.It Fl s
	The
	.Ar new_device
	is reconstructed sequentially to restore redundancy as quickly as possible.
	Checksums are not verfied during sequential reconstruction so a scrub is
	started when the resilver completes.
	Sequential reconstruction is not supported for raidz configurations.
	.It Fl w
	Waits until
	.Ar new_device
	has finished resilvering before returning.
	.El
	.
	.Sh SEE ALSO
	.Xr zpool-add 8 ,
	.Xr zpool-detach 8 ,
	.Xr zpool-import 8 ,
	.Xr zpool-initialize 8 ,
	.Xr zpool-online 8 ,
	.Xr zpool-replace 8 ,
	.Xr zpool-resilver 8
	diff --git a/sys/contrib/openzfs/man/man8/zpool-create.8 b/sys/contrib/openzfs/man/man8/zpool-create.8
	index 91e6f427d837..e902c770076d 100644
	--- a/sys/contrib/openzfs/man/man8/zpool-create.8
	+++ b/sys/contrib/openzfs/man/man8/zpool-create.8
	@@ -1,211 +1,211 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\" Copyright (c) 2021, Colm Buckley <colm@tuatha.org>
	.\"
	.Dd June 2, 2021
	.Dt ZPOOL-CREATE 8
	.Os
	.
	.Sh NAME
	.Nm zpool-create
	.Nd create ZFS storage pool
	.Sh SYNOPSIS
	.Nm zpool
	.Cm create
	.Op Fl dfn
	.Op Fl m Ar mountpoint
	.Oo Fl o Ar property Ns = Ns Ar value Oc Ns …
	.Oo Fl o Sy feature@ Ns Ar feature Ns = Ns Ar value Oc
	.Op Fl o Ar compatibility Ns = Ns Sy off Ns \| Ns Sy legacy Ns \| Ns Ar file Ns Oo , Ns Ar file Oc Ns …
	.Oo Fl O Ar file-system-property Ns = Ns Ar value Oc Ns …
	.Op Fl R Ar root
	.Op Fl t Ar tname
	.Ar pool
	.Ar vdev Ns …
	.
	.Sh DESCRIPTION
	Creates a new storage pool containing the virtual devices specified on the
	command line.
	The pool name must begin with a letter, and can only contain
	alphanumeric characters as well as the underscore
	.Pq Qq Sy _ ,
	dash
	.Pq Qq Sy \&- ,
	colon
	.Pq Qq Sy \&: ,
	space
	.Pq Qq Sy \&\ ,
	and period
	.Pq Qq Sy \&. .
	The pool names
	.Sy mirror ,
	.Sy raidz ,
	.Sy draid ,
	.Sy spare
	and
	.Sy log
	are reserved, as are names beginning with
	.Sy mirror ,
	.Sy raidz ,
	.Sy draid ,
	and
	.Sy spare .
	The
	.Ar vdev
	specification is described in the
	.Sx Virtual Devices
	section of
	-.Xr zpoolconcepts 8 .
	+.Xr zpoolconcepts 7 .
	.Pp
	The command attempts to verify that each device specified is accessible and not
	currently in use by another subsystem.
	However this check is not robust enough
	to detect simultaneous attempts to use a new device in different pools, even if
	.Sy multihost Ns = Sy enabled .
	The administrator must ensure, that simultaneous invocations of any combination of
	.Nm zpool Cm replace ,
	.Nm zpool Cm create ,
	.Nm zpool Cm add ,
	or
	.Nm zpool Cm labelclear ,
	do not refer to the same device.
	Using the same device in two pools will result in pool corruption.
	.Pp
	There are some uses, such as being currently mounted, or specified as the
	dedicated dump device, that prevents a device from ever being used by ZFS.
	Other uses, such as having a preexisting UFS file system, can be overridden with
	.Fl f .
	.Pp
	The command also checks that the replication strategy for the pool is
	consistent.
	An attempt to combine redundant and non-redundant storage in a single pool,
	or to mix disks and files, results in an error unless
	.Fl f
	is specified.
	The use of differently-sized devices within a single raidz or mirror group is
	also flagged as an error unless
	.Fl f
	is specified.
	.Pp
	Unless the
	.Fl R
	option is specified, the default mount point is
	.Pa / Ns Ar pool .
	The mount point must not exist or must be empty, or else the root dataset
	will not be able to be be mounted.
	This can be overridden with the
	.Fl m
	option.
	.Pp
	By default all supported features are enabled on the new pool.
	The
	.Fl d
	option and the
	.Fl o Ar compatibility
	property
	.Pq e.g Fl o Sy compatibility Ns = Ns Ar 2020
	can be used to restrict the features that are enabled, so that the
	pool can be imported on other releases of ZFS.
	.Bl -tag -width "-t tname"
	.It Fl d
	Do not enable any features on the new pool.
	Individual features can be enabled by setting their corresponding properties to
	.Sy enabled
	with
	.Fl o .
	See
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	for details about feature properties.
	.It Fl f
	Forces use of
	.Ar vdev Ns s ,
	even if they appear in use or specify a conflicting replication level.
	Not all devices can be overridden in this manner.
	.It Fl m Ar mountpoint
	Sets the mount point for the root dataset.
	The default mount point is
	.Pa /pool
	or
	.Pa altroot/pool
	if
	.Sy altroot
	is specified.
	The mount point must be an absolute path,
	.Sy legacy ,
	or
	.Sy none .
	For more information on dataset mount points, see
	-.Xr zfsprops 8 .
	+.Xr zfsprops 7 .
	.It Fl n
	Displays the configuration that would be used without actually creating the
	pool.
	The actual pool creation can still fail due to insufficient privileges or
	device sharing.
	.It Fl o Ar property Ns = Ns Ar value
	Sets the given pool properties.
	See
	-.Xr zpoolprops 8
	+.Xr zpoolprops 7
	for a list of valid properties that can be set.
	.It Fl o Ar compatibility Ns = Ns Sy off Ns \| Ns Sy legacy Ns \| Ns Ar file Ns Oo , Ns Ar file Oc Ns …
	Specifies compatibility feature sets.
	See
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	for more information about compatibility feature sets.
	.It Fl o Sy feature@ Ns Ar feature Ns = Ns Ar value
	Sets the given pool feature.
	See the
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	section for a list of valid features that can be set.
	Value can be either disabled or enabled.
	.It Fl O Ar file-system-property Ns = Ns Ar value
	Sets the given file system properties in the root file system of the pool.
	See
	-.Xr zfsprops 8
	+.Xr zfsprops 7
	for a list of valid properties that can be set.
	.It Fl R Ar root
	Equivalent to
	.Fl o Sy cachefile Ns = Ns Sy none Fl o Sy altroot Ns = Ns Ar root
	.It Fl t Ar tname
	Sets the in-core pool name to
	.Ar tname
	while the on-disk name will be the name specified as
	.Ar pool .
	This will set the default of the
	.Sy cachefile
	property to
	.Sy none .
	This is intended
	to handle name space collisions when creating pools for other systems,
	such as virtual machines or physical machines whose pools live on network
	block devices.
	.El
	.
	.Sh SEE ALSO
	.Xr zpool-destroy 8 ,
	.Xr zpool-export 8 ,
	.Xr zpool-import 8
	diff --git a/sys/contrib/openzfs/man/man8/zpool-events.8 b/sys/contrib/openzfs/man/man8/zpool-events.8
	index a95ce48d93a8..ab1d6ea56213 100644
	--- a/sys/contrib/openzfs/man/man8/zpool-events.8
	+++ b/sys/contrib/openzfs/man/man8/zpool-events.8
	@@ -1,73 +1,483 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\"
	.Dd May 27, 2021
	.Dt ZPOOL-EVENTS 8
	.Os
	.
	.Sh NAME
	.Nm zpool-events
	.Nd list recent events generated by kernel
	.Sh SYNOPSIS
	.Nm zpool
	.Cm events
	.Op Fl vHf
	.Op Ar pool
	.Nm zpool
	.Cm events
	.Fl c
	.
	.Sh DESCRIPTION
	Lists all recent events generated by the ZFS kernel modules.
	These events are consumed by the
	.Xr zed 8
	and used to automate administrative tasks such as replacing a failed device
	with a hot spare.
	For more information about the subclasses and event payloads
	-that can be generated see the
	-.Xr zfs-events 5
	-man page.
	-.Pp
	+that can be generated see
	+.Sx EVENTS
	+and the following sections.
	+.
	+.Sh OPTIONS
	.Bl -tag -compact -width Ds
	.It Fl c
	Clear all previous events.
	.It Fl f
	Follow mode.
	.It Fl H
	Scripted mode.
	Do not display headers, and separate fields by a
	single tab instead of arbitrary space.
	.It Fl v
	Print the entire payload for each event.
	.El
	.
	+.Sh EVENTS
	+Theese are the different event subclasses.
	+The full event name would be
	+.Sy ereport.fs.zfs.\& Ns Em SUBCLASS ,
	+but only the last part is listed here.
	+.Pp
	+.Bl -tag -compact -width "vdev.bad_guid_sum"
	+.It Sy checksum
	+Issued when a checksum error has been detected.
	+.It Sy io
	+Issued when there is an I/O error in a vdev in the pool.
	+.It Sy data
	+Issued when there have been data errors in the pool.
	+.It Sy deadman
	+Issued when an I/O request is determined to be "hung", this can be caused
	+by lost completion events due to flaky hardware or drivers.
	+See
	+.Sy zfs_deadman_failmode
	+in
	+.Xr zfs 4
	+for additional information regarding "hung" I/O detection and configuration.
	+.It Sy delay
	+Issued when a completed I/O request exceeds the maximum allowed time
	+specified by the
	+.Sy zio_slow_io_ms
	+module parameter.
	+This can be an indicator of problems with the underlying storage device.
	+The number of delay events is ratelimited by the
	+.Sy zfs_slow_io_events_per_second
	+module parameter.
	+.It Sy config
	+Issued every time a vdev change have been done to the pool.
	+.It Sy zpool
	+Issued when a pool cannot be imported.
	+.It Sy zpool.destroy
	+Issued when a pool is destroyed.
	+.It Sy zpool.export
	+Issued when a pool is exported.
	+.It Sy zpool.import
	+Issued when a pool is imported.
	+.It Sy zpool.reguid
	+Issued when a REGUID (new unique identifier for the pool have been regenerated) have been detected.
	+.It Sy vdev.unknown
	+Issued when the vdev is unknown.
	+Such as trying to clear device errors on a vdev that have failed/been kicked
	+from the system/pool and is no longer available.
	+.It Sy vdev.open_failed
	+Issued when a vdev could not be opened (because it didn't exist for example).
	+.It Sy vdev.corrupt_data
	+Issued when corrupt data have been detected on a vdev.
	+.It Sy vdev.no_replicas
	+Issued when there are no more replicas to sustain the pool.
	+This would lead to the pool being
	+.Em DEGRADED .
	+.It Sy vdev.bad_guid_sum
	+Issued when a missing device in the pool have been detected.
	+.It Sy vdev.too_small
	+Issued when the system (kernel) have removed a device, and ZFS
	+notices that the device isn't there any more.
	+This is usually followed by a
	+.Sy probe_failure
	+event.
	+.It Sy vdev.bad_label
	+Issued when the label is OK but invalid.
	+.It Sy vdev.bad_ashift
	+Issued when the ashift alignment requirement has increased.
	+.It Sy vdev.remove
	+Issued when a vdev is detached from a mirror (or a spare detached from a
	+vdev where it have been used to replace a failed drive - only works if
	+the original drive have been readded).
	+.It Sy vdev.clear
	+Issued when clearing device errors in a pool.
	+Such as running
	+.Nm zpool Cm clear
	+on a device in the pool.
	+.It Sy vdev.check
	+Issued when a check to see if a given vdev could be opened is started.
	+.It Sy vdev.spare
	+Issued when a spare have kicked in to replace a failed device.
	+.It Sy vdev.autoexpand
	+Issued when a vdev can be automatically expanded.
	+.It Sy io_failure
	+Issued when there is an I/O failure in a vdev in the pool.
	+.It Sy probe_failure
	+Issued when a probe fails on a vdev.
	+This would occur if a vdev
	+have been kicked from the system outside of ZFS (such as the kernel
	+have removed the device).
	+.It Sy log_replay
	+Issued when the intent log cannot be replayed.
	+The can occur in the case of a missing or damaged log device.
	+.It Sy resilver.start
	+Issued when a resilver is started.
	+.It Sy resilver.finish
	+Issued when the running resilver have finished.
	+.It Sy scrub.start
	+Issued when a scrub is started on a pool.
	+.It Sy scrub.finish
	+Issued when a pool has finished scrubbing.
	+.It Sy scrub.abort
	+Issued when a scrub is aborted on a pool.
	+.It Sy scrub.resume
	+Issued when a scrub is resumed on a pool.
	+.It Sy scrub.paused
	+Issued when a scrub is paused on a pool.
	+.It Sy bootfs.vdev.attach
	+.El
	+.
	+.Sh PAYLOADS
	+This is the payload (data, information) that accompanies an
	+event.
	+.Pp
	+For
	+.Xr zed 8 ,
	+these are set to uppercase and prefixed with
	+.Sy ZEVENT_ .
	+.Pp
	+.Bl -tag -compact -width "vdev_cksum_errors"
	+.It Sy pool
	+Pool name.
	+.It Sy pool_failmode
	+Failmode -
	+.Sy wait ,
	+.Sy continue ,
	+or
	+.Sy panic .
	+See the
	+.Sy failmode
	+property in
	+.Xr zpoolprops 7
	+for more information.
	+.It Sy pool_guid
	+The GUID of the pool.
	+.It Sy pool_context
	+The load state for the pool (0=none, 1=open, 2=import, 3=tryimport, 4=recover
	+5=error).
	+.It Sy vdev_guid
	+The GUID of the vdev in question (the vdev failing or operated upon with
	+.Nm zpool Cm clear ,
	+etc.).
	+.It Sy vdev_type
	+Type of vdev -
	+.Sy disk ,
	+.Sy file ,
	+.Sy mirror ,
	+etc.
	+See the
	+.Sy Virtual Devices
	+section of
	+.Xr zpoolconcepts 7
	+for more information on possible values.
	+.It Sy vdev_path
	+Full path of the vdev, including any
	+.Em -partX .
	+.It Sy vdev_devid
	+ID of vdev (if any).
	+.It Sy vdev_fru
	+Physical FRU location.
	+.It Sy vdev_state
	+State of vdev (0=uninitialized, 1=closed, 2=offline, 3=removed, 4=failed to open, 5=faulted, 6=degraded, 7=healthy).
	+.It Sy vdev_ashift
	+The ashift value of the vdev.
	+.It Sy vdev_complete_ts
	+The time the last I/O request completed for the specified vdev.
	+.It Sy vdev_delta_ts
	+The time since the last I/O request completed for the specified vdev.
	+.It Sy vdev_spare_paths
	+List of spares, including full path and any
	+.Em -partX .
	+.It Sy vdev_spare_guids
	+GUID(s) of spares.
	+.It Sy vdev_read_errors
	+How many read errors that have been detected on the vdev.
	+.It Sy vdev_write_errors
	+How many write errors that have been detected on the vdev.
	+.It Sy vdev_cksum_errors
	+How many checksum errors that have been detected on the vdev.
	+.It Sy parent_guid
	+GUID of the vdev parent.
	+.It Sy parent_type
	+Type of parent.
	+See
	+.Sy vdev_type .
	+.It Sy parent_path
	+Path of the vdev parent (if any).
	+.It Sy parent_devid
	+ID of the vdev parent (if any).
	+.It Sy zio_objset
	+The object set number for a given I/O request.
	+.It Sy zio_object
	+The object number for a given I/O request.
	+.It Sy zio_level
	+The indirect level for the block.
	+Level 0 is the lowest level and includes data blocks.
	+Values > 0 indicate metadata blocks at the appropriate level.
	+.It Sy zio_blkid
	+The block ID for a given I/O request.
	+.It Sy zio_err
	+The error number for a failure when handling a given I/O request,
	+compatible with
	+.Xr errno 3
	+with the value of
	+.Sy EBADE
	+used to indicate a ZFS checksum error.
	+.It Sy zio_offset
	+The offset in bytes of where to write the I/O request for the specified vdev.
	+.It Sy zio_size
	+The size in bytes of the I/O request.
	+.It Sy zio_flags
	+The current flags describing how the I/O request should be handled.
	+See the
	+.Sy I/O FLAGS
	+section for the full list of I/O flags.
	+.It Sy zio_stage
	+The current stage of the I/O in the pipeline.
	+See the
	+.Sy I/O STAGES
	+section for a full list of all the I/O stages.
	+.It Sy zio_pipeline
	+The valid pipeline stages for the I/O.
	+See the
	+.Sy I/O STAGES
	+section for a full list of all the I/O stages.
	+.It Sy zio_delay
	+The time elapsed (in nanoseconds) waiting for the block layer to complete the
	+I/O request.
	+Unlike
	+.Sy zio_delta ,
	+this does not include any vdev queuing time and is
	+therefore solely a measure of the block layer performance.
	+.It Sy zio_timestamp
	+The time when a given I/O request was submitted.
	+.It Sy zio_delta
	+The time required to service a given I/O request.
	+.It Sy prev_state
	+The previous state of the vdev.
	+.It Sy cksum_expected
	+The expected checksum value for the block.
	+.It Sy cksum_actual
	+The actual checksum value for an errant block.
	+.It Sy cksum_algorithm
	+Checksum algorithm used.
	+See
	+.Xr zfsprops 7
	+for more information on the available checksum algorithms.
	+.It Sy cksum_byteswap
	+Whether or not the data is byteswapped.
	+.It Sy bad_ranges
	+.No [\& Ns Ar start , end )
	+pairs of corruption offsets.
	+Offsets are always aligned on a 64-bit boundary,
	+and can include some gaps of non-corruption.
	+(See
	+.Sy bad_ranges_min_gap )
	+.It Sy bad_ranges_min_gap
	+In order to bound the size of the
	+.Sy bad_ranges
	+array, gaps of non-corruption
	+less than or equal to
	+.Sy bad_ranges_min_gap
	+bytes have been merged with
	+adjacent corruption.
	+Always at least 8 bytes, since corruption is detected on a 64-bit word basis.
	+.It Sy bad_range_sets
	+This array has one element per range in
	+.Sy bad_ranges .
	+Each element contains
	+the count of bits in that range which were clear in the good data and set
	+in the bad data.
	+.It Sy bad_range_clears
	+This array has one element per range in
	+.Sy bad_ranges .
	+Each element contains
	+the count of bits for that range which were set in the good data and clear in
	+the bad data.
	+.It Sy bad_set_bits
	+If this field exists, it is an array of
	+.Pq Ar bad data No & ~( Ns Ar good data ) ;
	+that is, the bits set in the bad data which are cleared in the good data.
	+Each element corresponds a byte whose offset is in a range in
	+.Sy bad_ranges ,
	+and the array is ordered by offset.
	+Thus, the first element is the first byte in the first
	+.Sy bad_ranges
	+range, and the last element is the last byte in the last
	+.Sy bad_ranges
	+range.
	+.It Sy bad_cleared_bits
	+Like
	+.Sy bad_set_bits ,
	+but contains
	+.Pq Ar good data No & ~( Ns Ar bad data ) ;
	+that is, the bits set in the good data which are cleared in the bad data.
	+.It Sy bad_set_histogram
	+If this field exists, it is an array of counters.
	+Each entry counts bits set in a particular bit of a big-endian uint64 type.
	+The first entry counts bits
	+set in the high-order bit of the first byte, the 9th byte, etc, and the last
	+entry counts bits set of the low-order bit of the 8th byte, the 16th byte, etc.
	+This information is useful for observing a stuck bit in a parallel data path,
	+such as IDE or parallel SCSI.
	+.It Sy bad_cleared_histogram
	+If this field exists, it is an array of counters.
	+Each entry counts bit clears in a particular bit of a big-endian uint64 type.
	+The first entry counts bits
	+clears of the high-order bit of the first byte, the 9th byte, etc, and the
	+last entry counts clears of the low-order bit of the 8th byte, the 16th byte, etc.
	+This information is useful for observing a stuck bit in a parallel data
	+path, such as IDE or parallel SCSI.
	+.El
	+.
	+.Sh I/O STAGES
	+The ZFS I/O pipeline is comprised of various stages which are defined below.
	+The individual stages are used to construct these basic I/O
	+operations: Read, Write, Free, Claim, and Ioctl.
	+These stages may be
	+set on an event to describe the life cycle of a given I/O request.
	+.Pp
	+.TS
	+tab(:);
	+l l l .
	+Stage:Bit Mask:Operations
	+_:_:_
	+ZIO_STAGE_OPEN:0x00000001:RWFCI
	+
	+ZIO_STAGE_READ_BP_INIT:0x00000002:R----
	+ZIO_STAGE_WRITE_BP_INIT:0x00000004:-W---
	+ZIO_STAGE_FREE_BP_INIT:0x00000008:--F--
	+ZIO_STAGE_ISSUE_ASYNC:0x00000010:RWF--
	+ZIO_STAGE_WRITE_COMPRESS:0x00000020:-W---
	+
	+ZIO_STAGE_ENCRYPT:0x00000040:-W---
	+ZIO_STAGE_CHECKSUM_GENERATE:0x00000080:-W---
	+
	+ZIO_STAGE_NOP_WRITE:0x00000100:-W---
	+
	+ZIO_STAGE_DDT_READ_START:0x00000200:R----
	+ZIO_STAGE_DDT_READ_DONE:0x00000400:R----
	+ZIO_STAGE_DDT_WRITE:0x00000800:-W---
	+ZIO_STAGE_DDT_FREE:0x00001000:--F--
	+
	+ZIO_STAGE_GANG_ASSEMBLE:0x00002000:RWFC-
	+ZIO_STAGE_GANG_ISSUE:0x00004000:RWFC-
	+
	+ZIO_STAGE_DVA_THROTTLE:0x00008000:-W---
	+ZIO_STAGE_DVA_ALLOCATE:0x00010000:-W---
	+ZIO_STAGE_DVA_FREE:0x00020000:--F--
	+ZIO_STAGE_DVA_CLAIM:0x00040000:---C-
	+
	+ZIO_STAGE_READY:0x00080000:RWFCI
	+
	+ZIO_STAGE_VDEV_IO_START:0x00100000:RW--I
	+ZIO_STAGE_VDEV_IO_DONE:0x00200000:RW--I
	+ZIO_STAGE_VDEV_IO_ASSESS:0x00400000:RW--I
	+
	+ZIO_STAGE_CHECKSUM_VERIFY:0x00800000:R----
	+
	+ZIO_STAGE_DONE:0x01000000:RWFCI
	+.TE
	+.
	+.Sh I/O FLAGS
	+Every I/O request in the pipeline contains a set of flags which describe its
	+function and are used to govern its behavior.
	+These flags will be set in an event as a
	+.Sy zio_flags
	+payload entry.
	+.Pp
	+.TS
	+tab(:);
	+l l .
	+Flag:Bit Mask
	+_:_
	+ZIO_FLAG_DONT_AGGREGATE:0x00000001
	+ZIO_FLAG_IO_REPAIR:0x00000002
	+ZIO_FLAG_SELF_HEAL:0x00000004
	+ZIO_FLAG_RESILVER:0x00000008
	+ZIO_FLAG_SCRUB:0x00000010
	+ZIO_FLAG_SCAN_THREAD:0x00000020
	+ZIO_FLAG_PHYSICAL:0x00000040
	+
	+ZIO_FLAG_CANFAIL:0x00000080
	+ZIO_FLAG_SPECULATIVE:0x00000100
	+ZIO_FLAG_CONFIG_WRITER:0x00000200
	+ZIO_FLAG_DONT_RETRY:0x00000400
	+ZIO_FLAG_DONT_CACHE:0x00000800
	+ZIO_FLAG_NODATA:0x00001000
	+ZIO_FLAG_INDUCE_DAMAGE:0x00002000
	+
	+ZIO_FLAG_IO_ALLOCATING:0x00004000
	+ZIO_FLAG_IO_RETRY:0x00008000
	+ZIO_FLAG_PROBE:0x00010000
	+ZIO_FLAG_TRYHARD:0x00020000
	+ZIO_FLAG_OPTIONAL:0x00040000
	+
	+ZIO_FLAG_DONT_QUEUE:0x00080000
	+ZIO_FLAG_DONT_PROPAGATE:0x00100000
	+ZIO_FLAG_IO_BYPASS:0x00200000
	+ZIO_FLAG_IO_REWRITE:0x00400000
	+ZIO_FLAG_RAW_COMPRESS:0x00800000
	+ZIO_FLAG_RAW_ENCRYPT:0x01000000
	+
	+ZIO_FLAG_GANG_CHILD:0x02000000
	+ZIO_FLAG_DDT_CHILD:0x04000000
	+ZIO_FLAG_GODFATHER:0x08000000
	+ZIO_FLAG_NOPWRITE:0x10000000
	+ZIO_FLAG_REEXECUTED:0x20000000
	+ZIO_FLAG_DELEGATED:0x40000000
	+ZIO_FLAG_FASTWRITE:0x80000000
	+.TE
	+.
	.Sh SEE ALSO
	-.Xr zfs-events 5 ,
	-.Xr zfs-module-parameters 5 ,
	+.Xr zfs 4 ,
	.Xr zed 8 ,
	.Xr zpool-wait 8
	diff --git a/sys/contrib/openzfs/man/man8/zpool-get.8 b/sys/contrib/openzfs/man/man8/zpool-get.8
	index 06908238999c..55904f169e24 100644
	--- a/sys/contrib/openzfs/man/man8/zpool-get.8
	+++ b/sys/contrib/openzfs/man/man8/zpool-get.8
	@@ -1,108 +1,108 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\"
	.Dd August 9, 2019
	.Dt ZPOOL-GET 8
	.Os
	.
	.Sh NAME
	.Nm zpool-get
	.Nd retrieve properties of ZFS storage pools
	.Sh SYNOPSIS
	.Nm zpool
	.Cm get
	.Op Fl Hp
	.Op Fl o Ar field Ns Oo , Ns Ar field Oc Ns …
	.Sy all Ns \| Ns Ar property Ns Oo , Ns Ar property Oc Ns …
	.Oo Ar pool Oc Ns …
	.Nm zpool
	.Cm set
	.Ar property Ns = Ns Ar value
	.Ar pool
	.
	.Sh DESCRIPTION
	.Bl -tag -width Ds
	.It Xo
	.Nm zpool
	.Cm get
	.Op Fl Hp
	.Op Fl o Ar field Ns Oo , Ns Ar field Oc Ns …
	.Sy all Ns \| Ns Ar property Ns Oo , Ns Ar property Oc Ns …
	.Oo Ar pool Oc Ns …
	.Xc
	Retrieves the given list of properties
	.Po
	or all properties if
	.Sy all
	is used
	.Pc
	for the specified storage pool(s).
	These properties are displayed with the following fields:
	.Bl -tag -compact -offset Ds -width "property"
	.It Sy name
	Name of storage pool.
	.It Sy property
	Property name.
	.It Sy value
	Property value.
	.It Sy source
	Property source, either
	.Sy default No or Sy local .
	.El
	.Pp
	See the
	-.Xr zpoolprops 8
	+.Xr zpoolprops 7
	manual page for more information on the available pool properties.
	.Bl -tag -compact -offset Ds -width "-o field"
	.It Fl H
	Scripted mode.
	Do not display headers, and separate fields by a single tab instead of arbitrary
	space.
	.It Fl o Ar field
	A comma-separated list of columns to display, defaults to
	.Sy name , Ns Sy property , Ns Sy value , Ns Sy source .
	.It Fl p
	Display numbers in parsable (exact) values.
	.El
	.It Xo
	.Nm zpool
	.Cm set
	.Ar property Ns = Ns Ar value
	.Ar pool
	.Xc
	Sets the given property on the specified pool.
	See the
	-.Xr zpoolprops 8
	+.Xr zpoolprops 7
	manual page for more information on what properties can be set and acceptable
	values.
	.El
	.
	.Sh SEE ALSO
	-.Xr zpool-features 5 ,
	-.Xr zpool-list 8 ,
	-.Xr zpoolprops 8
	+.Xr zpool-features 7 ,
	+.Xr zpoolprops 7 ,
	+.Xr zpool-list 8
	diff --git a/sys/contrib/openzfs/man/man8/zpool-import.8 b/sys/contrib/openzfs/man/man8/zpool-import.8
	index 1b1f3c5ae5b0..518e3cf1d76a 100644
	--- a/sys/contrib/openzfs/man/man8/zpool-import.8
	+++ b/sys/contrib/openzfs/man/man8/zpool-import.8
	@@ -1,409 +1,409 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\"
	.Dd August 9, 2019
	.Dt ZPOOL-IMPORT 8
	.Os
	.
	.Sh NAME
	.Nm zpool-import
	.Nd import ZFS storage pools or list available pools
	.Sh SYNOPSIS
	.Nm zpool
	.Cm import
	.Op Fl D
	.Oo Fl d Ar dir Ns \| Ns Ar device Oc Ns …
	.Nm zpool
	.Cm import
	.Fl a
	.Op Fl DflmN
	.Op Fl F Op Fl nTX
	.Op Fl -rewind-to-checkpoint
	.Op Fl c Ar cachefile Ns \| Ns Fl d Ar dir Ns \| Ns Ar device
	.Op Fl o Ar mntopts
	.Oo Fl o Ar property Ns = Ns Ar value Oc Ns …
	.Op Fl R Ar root
	.Nm zpool
	.Cm import
	.Op Fl Dflmt
	.Op Fl F Op Fl nTX
	.Op Fl -rewind-to-checkpoint
	.Op Fl c Ar cachefile Ns \| Ns Fl d Ar dir Ns \| Ns Ar device
	.Op Fl o Ar mntopts
	.Oo Fl o Ar property Ns = Ns Ar value Oc Ns …
	.Op Fl R Ar root
	.Op Fl s
	.Ar pool Ns \| Ns Ar id
	.Op Ar newpool
	.
	.Sh DESCRIPTION
	.Bl -tag -width Ds
	.It Xo
	.Nm zpool
	.Cm import
	.Op Fl D
	.Oo Fl d Ar dir Ns \| Ns Ar device Oc Ns …
	.Xc
	Lists pools available to import.
	If the
	.Fl d or
	.Fl c
	options are not specified, this command searches for devices using libblkid
	on Linux and geom on
	.Fx .
	The
	.Fl d
	option can be specified multiple times, and all directories are searched.
	If the device appears to be part of an exported pool, this command displays a
	summary of the pool with the name of the pool, a numeric identifier, as well as
	the vdev layout and current health of the device for each device or file.
	Destroyed pools, pools that were previously destroyed with the
	.Nm zpool Cm destroy
	command, are not listed unless the
	.Fl D
	option is specified.
	.Pp
	The numeric identifier is unique, and can be used instead of the pool name when
	multiple exported pools of the same name are available.
	.Bl -tag -width Ds
	.It Fl c Ar cachefile
	Reads configuration from the given
	.Ar cachefile
	that was created with the
	.Sy cachefile
	pool property.
	This
	.Ar cachefile
	is used instead of searching for devices.
	.It Fl d Ar dir Ns \| Ns Ar device
	Uses
	.Ar device
	or searches for devices or files in
	.Ar dir .
	The
	.Fl d
	option can be specified multiple times.
	.It Fl D
	Lists destroyed pools only.
	.El
	.It Xo
	.Nm zpool
	.Cm import
	.Fl a
	.Op Fl DflmN
	.Op Fl F Op Fl nTX
	.Op Fl c Ar cachefile Ns \| Ns Fl d Ar dir Ns \| Ns Ar device
	.Op Fl o Ar mntopts
	.Oo Fl o Ar property Ns = Ns Ar value Oc Ns …
	.Op Fl R Ar root
	.Op Fl s
	.Xc
	Imports all pools found in the search directories.
	Identical to the previous command, except that all pools with a sufficient
	number of devices available are imported.
	Destroyed pools, pools that were previously destroyed with the
	.Nm zpool Cm destroy
	command, will not be imported unless the
	.Fl D
	option is specified.
	.Bl -tag -width Ds
	.It Fl a
	Searches for and imports all pools found.
	.It Fl c Ar cachefile
	Reads configuration from the given
	.Ar cachefile
	that was created with the
	.Sy cachefile
	pool property.
	This
	.Ar cachefile
	is used instead of searching for devices.
	.It Fl d Ar dir Ns \| Ns Ar device
	Uses
	.Ar device
	or searches for devices or files in
	.Ar dir .
	The
	.Fl d
	option can be specified multiple times.
	This option is incompatible with the
	.Fl c
	option.
	.It Fl D
	Imports destroyed pools only.
	The
	.Fl f
	option is also required.
	.It Fl f
	Forces import, even if the pool appears to be potentially active.
	.It Fl F
	Recovery mode for a non-importable pool.
	Attempt to return the pool to an importable state by discarding the last few
	transactions.
	Not all damaged pools can be recovered by using this option.
	If successful, the data from the discarded transactions is irretrievably lost.
	This option is ignored if the pool is importable or already imported.
	.It Fl l
	Indicates that this command will request encryption keys for all encrypted
	datasets it attempts to mount as it is bringing the pool online.
	Note that if any datasets have a
	.Sy keylocation
	of
	.Sy prompt
	this command will block waiting for the keys to be entered.
	Without this flag
	encrypted datasets will be left unavailable until the keys are loaded.
	.It Fl m
	Allows a pool to import when there is a missing log device.
	Recent transactions can be lost because the log device will be discarded.
	.It Fl n
	Used with the
	.Fl F
	recovery option.
	Determines whether a non-importable pool can be made importable again, but does
	not actually perform the pool recovery.
	For more details about pool recovery mode, see the
	.Fl F
	option, above.
	.It Fl N
	Import the pool without mounting any file systems.
	.It Fl o Ar mntopts
	Comma-separated list of mount options to use when mounting datasets within the
	pool.
	See
	.Xr zfs 8
	for a description of dataset properties and mount options.
	.It Fl o Ar property Ns = Ns Ar value
	Sets the specified property on the imported pool.
	See the
	-.Xr zpoolprops 8
	+.Xr zpoolprops 7
	manual page for more information on the available pool properties.
	.It Fl R Ar root
	Sets the
	.Sy cachefile
	property to
	.Sy none
	and the
	.Sy altroot
	property to
	.Ar root .
	.It Fl -rewind-to-checkpoint
	Rewinds pool to the checkpointed state.
	Once the pool is imported with this flag there is no way to undo the rewind.
	All changes and data that were written after the checkpoint are lost!
	The only exception is when the
	.Sy readonly
	mounting option is enabled.
	In this case, the checkpointed state of the pool is opened and an
	administrator can see how the pool would look like if they were
	to fully rewind.
	.It Fl s
	Scan using the default search path, the libblkid cache will not be
	consulted.
	A custom search path may be specified by setting the
	.Sy ZPOOL_IMPORT_PATH
	environment variable.
	.It Fl X
	Used with the
	.Fl F
	recovery option.
	Determines whether extreme measures to find a valid txg should take place.
	This allows the pool to
	be rolled back to a txg which is no longer guaranteed to be consistent.
	Pools imported at an inconsistent txg may contain uncorrectable checksum errors.
	For more details about pool recovery mode, see the
	.Fl F
	option, above.
	WARNING: This option can be extremely hazardous to the
	health of your pool and should only be used as a last resort.
	.It Fl T
	Specify the txg to use for rollback.
	Implies
	.Fl FX .
	For more details
	about pool recovery mode, see the
	.Fl X
	option, above.
	WARNING: This option can be extremely hazardous to the
	health of your pool and should only be used as a last resort.
	.El
	.It Xo
	.Nm zpool
	.Cm import
	.Op Fl Dflmt
	.Op Fl F Op Fl nTX
	.Op Fl c Ar cachefile Ns \| Ns Fl d Ar dir Ns \| Ns Ar device
	.Op Fl o Ar mntopts
	.Oo Fl o Ar property Ns = Ns Ar value Oc Ns …
	.Op Fl R Ar root
	.Op Fl s
	.Ar pool Ns \| Ns Ar id
	.Op Ar newpool
	.Xc
	Imports a specific pool.
	A pool can be identified by its name or the numeric identifier.
	If
	.Ar newpool
	is specified, the pool is imported using the name
	.Ar newpool .
	Otherwise, it is imported with the same name as its exported name.
	.Pp
	If a device is removed from a system without running
	.Nm zpool Cm export
	first, the device appears as potentially active.
	It cannot be determined if this was a failed export, or whether the device is
	really in use from another host.
	To import a pool in this state, the
	.Fl f
	option is required.
	.Bl -tag -width Ds
	.It Fl c Ar cachefile
	Reads configuration from the given
	.Ar cachefile
	that was created with the
	.Sy cachefile
	pool property.
	This
	.Ar cachefile
	is used instead of searching for devices.
	.It Fl d Ar dir Ns \| Ns Ar device
	Uses
	.Ar device
	or searches for devices or files in
	.Ar dir .
	The
	.Fl d
	option can be specified multiple times.
	This option is incompatible with the
	.Fl c
	option.
	.It Fl D
	Imports destroyed pool.
	The
	.Fl f
	option is also required.
	.It Fl f
	Forces import, even if the pool appears to be potentially active.
	.It Fl F
	Recovery mode for a non-importable pool.
	Attempt to return the pool to an importable state by discarding the last few
	transactions.
	Not all damaged pools can be recovered by using this option.
	If successful, the data from the discarded transactions is irretrievably lost.
	This option is ignored if the pool is importable or already imported.
	.It Fl l
	Indicates that this command will request encryption keys for all encrypted
	datasets it attempts to mount as it is bringing the pool online.
	Note that if any datasets have a
	.Sy keylocation
	of
	.Sy prompt
	this command will block waiting for the keys to be entered.
	Without this flag
	encrypted datasets will be left unavailable until the keys are loaded.
	.It Fl m
	Allows a pool to import when there is a missing log device.
	Recent transactions can be lost because the log device will be discarded.
	.It Fl n
	Used with the
	.Fl F
	recovery option.
	Determines whether a non-importable pool can be made importable again, but does
	not actually perform the pool recovery.
	For more details about pool recovery mode, see the
	.Fl F
	option, above.
	.It Fl o Ar mntopts
	Comma-separated list of mount options to use when mounting datasets within the
	pool.
	See
	.Xr zfs 8
	for a description of dataset properties and mount options.
	.It Fl o Ar property Ns = Ns Ar value
	Sets the specified property on the imported pool.
	See the
	-.Xr zpoolprops 8
	+.Xr zpoolprops 7
	manual page for more information on the available pool properties.
	.It Fl R Ar root
	Sets the
	.Sy cachefile
	property to
	.Sy none
	and the
	.Sy altroot
	property to
	.Ar root .
	.It Fl s
	Scan using the default search path, the libblkid cache will not be
	consulted.
	A custom search path may be specified by setting the
	.Sy ZPOOL_IMPORT_PATH
	environment variable.
	.It Fl X
	Used with the
	.Fl F
	recovery option.
	Determines whether extreme measures to find a valid txg should take place.
	This allows the pool to
	be rolled back to a txg which is no longer guaranteed to be consistent.
	Pools imported at an inconsistent txg may contain uncorrectable
	checksum errors.
	For more details about pool recovery mode, see the
	.Fl F
	option, above.
	WARNING: This option can be extremely hazardous to the
	health of your pool and should only be used as a last resort.
	.It Fl T
	Specify the txg to use for rollback.
	Implies
	.Fl FX .
	For more details
	about pool recovery mode, see the
	.Fl X
	option, above.
	WARNING: This option can be extremely hazardous to the
	health of your pool and should only be used as a last resort.
	.It Fl t
	Used with
	.Sy newpool .
	Specifies that
	.Sy newpool
	is temporary.
	Temporary pool names last until export.
	Ensures that the original pool name will be used
	in all label updates and therefore is retained upon export.
	Will also set
	.Fl o Sy cachefile Ns = Ns Sy none
	when not explicitly specified.
	.El
	.El
	.
	.Sh SEE ALSO
	.Xr zpool-export 8 ,
	.Xr zpool-list 8 ,
	.Xr zpool-status 8
	diff --git a/sys/contrib/openzfs/man/man8/zpool-list.8 b/sys/contrib/openzfs/man/man8/zpool-list.8
	index 3dec7370c5e8..dd4e13c16042 100644
	--- a/sys/contrib/openzfs/man/man8/zpool-list.8
	+++ b/sys/contrib/openzfs/man/man8/zpool-list.8
	@@ -1,112 +1,112 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\"
	.Dd August 9, 2019
	.Dt ZPOOL-LIST 8
	.Os
	.
	.Sh NAME
	.Nm zpool-list
	.Nd list information about ZFS storage pools
	.Sh SYNOPSIS
	.Nm zpool
	.Cm list
	.Op Fl HgLpPv
	.Op Fl o Ar property Ns Oo , Ns Ar property Oc Ns …
	.Op Fl T Sy u Ns \| Ns Sy d
	.Oo Ar pool Oc Ns …
	.Op Ar interval Op Ar count
	.
	.Sh DESCRIPTION
	Lists the given pools along with a health status and space usage.
	If no
	.Ar pool Ns s
	are specified, all pools in the system are listed.
	When given an
	.Ar interval ,
	the information is printed every
	.Ar interval
	seconds until killed.
	If
	.Ar count
	is specified, the command exits after
	.Ar count
	reports are printed.
	.Bl -tag -width Ds
	.It Fl g
	Display vdev GUIDs instead of the normal device names.
	These GUIDs can be used in place of device names for the zpool
	detach/offline/remove/replace commands.
	.It Fl H
	Scripted mode.
	Do not display headers, and separate fields by a single tab instead of arbitrary
	space.
	.It Fl o Ar property
	Comma-separated list of properties to display.
	See the
	-.Xr zpoolprops 8
	+.Xr zpoolprops 7
	manual page for a list of valid properties.
	The default list is
	.Sy name , size , allocated , free , checkpoint, expandsize , fragmentation ,
	.Sy capacity , dedupratio , health , altroot .
	.It Fl L
	Display real paths for vdevs resolving all symbolic links.
	This can be used to look up the current block device name regardless of the
	.Pa /dev/disk
	path used to open it.
	.It Fl p
	Display numbers in parsable
	.Pq exact
	values.
	.It Fl P
	Display full paths for vdevs instead of only the last component of
	the path.
	This can be used in conjunction with the
	.Fl L
	flag.
	.It Fl T Sy u Ns \| Ns Sy d
	Display a time stamp.
	Specify
	.Sy u
	for a printed representation of the internal representation of time.
	See
	.Xr time 2 .
	Specify
	.Sy d
	for standard date format.
	See
	.Xr date 1 .
	.It Fl v
	Verbose statistics.
	Reports usage statistics for individual vdevs within the pool, in addition to
	the pool-wide statistics.
	.El
	.
	.Sh SEE ALSO
	.Xr zpool-import 8 ,
	.Xr zpool-status 8
	diff --git a/sys/contrib/openzfs/man/man8/zpool-remove.8 b/sys/contrib/openzfs/man/man8/zpool-remove.8
	index 5d866cb50d4d..1429180385cc 100644
	--- a/sys/contrib/openzfs/man/man8/zpool-remove.8
	+++ b/sys/contrib/openzfs/man/man8/zpool-remove.8
	@@ -1,111 +1,111 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\"
	.Dd August 9, 2019
	.Dt ZPOOL-REMOVE 8
	.Os
	.Sh NAME
	.Nm zpool-remove
	.Nd remove devices from ZFS storage pool
	.Sh SYNOPSIS
	.Nm zpool
	.Cm remove
	.Op Fl npw
	.Ar pool Ar device Ns …
	.Nm zpool
	.Cm remove
	.Fl s
	.Ar pool
	.Sh DESCRIPTION
	.Bl -tag -width Ds
	.It Xo
	.Nm zpool
	.Cm remove
	.Op Fl npw
	.Ar pool Ar device Ns …
	.Xc
	Removes the specified device from the pool.
	This command supports removing hot spare, cache, log, and both mirrored and
	non-redundant primary top-level vdevs, including dedup and special vdevs.
	When the primary pool storage includes a top-level raidz vdev only hot spare,
	cache, and log devices can be removed.
	Note that keys for all encrypted datasets must be loaded for top-level vdevs
	to be removed.
	.Pp
	Removing a top-level vdev reduces the total amount of space in the storage pool.
	The specified device will be evacuated by copying all allocated space from it to
	the other devices in the pool.
	In this case, the
	.Nm zpool Cm remove
	command initiates the removal and returns, while the evacuation continues in
	the background.
	The removal progress can be monitored with
	.Nm zpool Cm status .
	If an IO error is encountered during the removal process it will be cancelled.
	The
	.Sy device_removal
	feature flag must be enabled to remove a top-level vdev, see
	-.Xr zpool-features 5 .
	+.Xr zpool-features 7 .
	.Pp
	A mirrored top-level device (log or data) can be removed by specifying the top-level mirror for the
	same.
	Non-log devices or data devices that are part of a mirrored configuration can be removed using
	the
	.Nm zpool Cm detach
	command.
	.Bl -tag -width Ds
	.It Fl n
	Do not actually perform the removal
	.Pq Qq No-op .
	Instead, print the estimated amount of memory that will be used by the
	mapping table after the removal completes.
	This is nonzero only for top-level vdevs.
	.El
	.Bl -tag -width Ds
	.It Fl p
	Used in conjunction with the
	.Fl n
	flag, displays numbers as parsable (exact) values.
	.It Fl w
	Waits until the removal has completed before returning.
	.El
	.It Xo
	.Nm zpool
	.Cm remove
	.Fl s
	.Ar pool
	.Xc
	Stops and cancels an in-progress removal of a top-level vdev.
	.El
	.Sh SEE ALSO
	.Xr zpool-add 8 ,
	.Xr zpool-detach 8 ,
	.Xr zpool-labelclear 8 ,
	.Xr zpool-offline 8 ,
	.Xr zpool-replace 8 ,
	.Xr zpool-split 8
	diff --git a/sys/contrib/openzfs/man/man8/zpool-replace.8 b/sys/contrib/openzfs/man/man8/zpool-replace.8
	index eadb5681895b..2b2875ed4292 100644
	--- a/sys/contrib/openzfs/man/man8/zpool-replace.8
	+++ b/sys/contrib/openzfs/man/man8/zpool-replace.8
	@@ -1,99 +1,99 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\"
	.Dd May 29, 2021
	.Dt ZPOOL-REPLACE 8
	.Os
	.
	.Sh NAME
	.Nm zpool-replace
	.Nd replace one device with another in ZFS storage pool
	.Sh SYNOPSIS
	.Nm zpool
	.Cm replace
	.Op Fl fsw
	.Oo Fl o Ar property Ns = Ns Ar value Oc
	.Ar pool Ar device Op Ar new-device
	.
	.Sh DESCRIPTION
	Replaces
	.Ar device
	with
	.Ar new-device .
	This is equivalent to attaching
	.Ar new-device ,
	waiting for it to resilver, and then detaching
	.Ar device .
	Any in progress scrub will be cancelled.
	.Pp
	The size of
	.Ar new-device
	must be greater than or equal to the minimum size of all the devices in a mirror
	or raidz configuration.
	.Pp
	.Ar new-device
	is required if the pool is not redundant.
	If
	.Ar new-device
	is not specified, it defaults to
	.Ar device .
	This form of replacement is useful after an existing disk has failed and has
	been physically replaced.
	In this case, the new disk may have the same
	.Pa /dev
	path as the old device, even though it is actually a different disk.
	ZFS recognizes this.
	.Bl -tag -width Ds
	.It Fl f
	Forces use of
	.Ar new-device ,
	even if it appears to be in use.
	Not all devices can be overridden in this manner.
	.It Fl o Ar property Ns = Ns Ar value
	Sets the given pool properties.
	See the
	-.Xr zpoolprops 8
	+.Xr zpoolprops 7
	manual page for a list of valid properties that can be set.
	The only property supported at the moment is
	.Sy ashift .
	.It Fl s
	The
	.Ar new-device
	is reconstructed sequentially to restore redundancy as quickly as possible.
	Checksums are not verfied during sequential reconstruction so a scrub is
	started when the resilver completes.
	Sequential reconstruction is not supported for raidz configurations.
	.It Fl w
	Waits until the replacement has completed before returning.
	.El
	.
	.Sh SEE ALSO
	.Xr zpool-detach 8 ,
	.Xr zpool-initialize 8 ,
	.Xr zpool-online 8 ,
	.Xr zpool-resilver 8
	diff --git a/sys/contrib/openzfs/man/man8/zpool-split.8 b/sys/contrib/openzfs/man/man8/zpool-split.8
	index 7a1a13d5db41..c3b05c2366bf 100644
	--- a/sys/contrib/openzfs/man/man8/zpool-split.8
	+++ b/sys/contrib/openzfs/man/man8/zpool-split.8
	@@ -1,116 +1,116 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\"
	.Dd June 2, 2021
	.Dt ZPOOL-SPLIT 8
	.Os
	.
	.Sh NAME
	.Nm zpool-split
	.Nd split devices off ZFS storage pool, creating new pool
	.Sh SYNOPSIS
	.Nm zpool
	.Cm split
	.Op Fl gLlnP
	.Oo Fl o Ar property Ns = Ns Ar value Oc Ns …
	.Op Fl R Ar root
	.Ar pool newpool
	.Oo Ar device Oc Ns …
	.
	.Sh DESCRIPTION
	Splits devices off
	.Ar pool
	creating
	.Ar newpool .
	All vdevs in
	.Ar pool
	must be mirrors and the pool must not be in the process of resilvering.
	At the time of the split,
	.Ar newpool
	will be a replica of
	.Ar pool .
	By default, the
	last device in each mirror is split from
	.Ar pool
	to create
	.Ar newpool .
	.Pp
	The optional device specification causes the specified device(s) to be
	included in the new
	.Ar pool
	and, should any devices remain unspecified,
	the last device in each mirror is used as would be by default.
	.Bl -tag -width Ds
	.It Fl g
	Display vdev GUIDs instead of the normal device names.
	These GUIDs can be used in place of device names for the zpool
	detach/offline/remove/replace commands.
	.It Fl L
	Display real paths for vdevs resolving all symbolic links.
	This can be used to look up the current block device name regardless of the
	.Pa /dev/disk/
	path used to open it.
	.It Fl l
	Indicates that this command will request encryption keys for all encrypted
	datasets it attempts to mount as it is bringing the new pool online.
	Note that if any datasets have
	.Sy keylocation Ns = Ns Sy prompt ,
	this command will block waiting for the keys to be entered.
	Without this flag, encrypted datasets will be left unavailable until the keys are loaded.
	.It Fl n
	Do a dry-run
	.Pq Qq No-op
	split: do not actually perform it.
	Print out the expected configuration of
	.Ar newpool .
	.It Fl P
	Display full paths for vdevs instead of only the last component of
	the path.
	This can be used in conjunction with the
	.Fl L
	flag.
	.It Fl o Ar property Ns = Ns Ar value
	Sets the specified property for
	.Ar newpool .
	See the
	-.Xr zpoolprops 8
	+.Xr zpoolprops 7
	manual page for more information on the available pool properties.
	.It Fl R Ar root
	Set
	.Sy altroot
	for
	.Ar newpool
	to
	.Ar root
	and automatically import it.
	.El
	.
	.Sh SEE ALSO
	.Xr zpool-import 8 ,
	.Xr zpool-list 8 ,
	.Xr zpool-remove 8
	diff --git a/sys/contrib/openzfs/man/man8/zpool-status.8 b/sys/contrib/openzfs/man/man8/zpool-status.8
	index da5f95e29cdc..7c825f69d8e2 100644
	--- a/sys/contrib/openzfs/man/man8/zpool-status.8
	+++ b/sys/contrib/openzfs/man/man8/zpool-status.8
	@@ -1,134 +1,134 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\"
	.Dd June 2, 2021
	.Dt ZPOOL-STATUS 8
	.Os
	.
	.Sh NAME
	.Nm zpool-status
	.Nd show detailed health status for ZFS storage pools
	.Sh SYNOPSIS
	.Nm zpool
	.Cm status
	.Op Fl DigLpPstvx
	.Op Fl T Sy u Ns \| Ns Sy d
	.Op Fl c Op Ar SCRIPT1 Ns Oo , Ns Ar SCRIPT2 Oc Ns …
	.Oo Ar pool Oc Ns …
	.Op Ar interval Op Ar count
	.
	.Sh DESCRIPTION
	Displays the detailed health status for the given pools.
	If no
	.Ar pool
	is specified, then the status of each pool in the system is displayed.
	For more information on pool and device health, see the
	.Sx Device Failure and Recovery
	section of
	-.Xr zpoolconcepts 8 .
	+.Xr zpoolconcepts 7 .
	.Pp
	If a scrub or resilver is in progress, this command reports the percentage done
	and the estimated time to completion.
	Both of these are only approximate, because the amount of data in the pool and
	the other workloads on the system can change.
	.Bl -tag -width Ds
	.It Fl c Op Ar SCRIPT1 Ns Oo , Ns Ar SCRIPT2 Oc Ns …
	Run a script (or scripts) on each vdev and include the output as a new column
	in the
	.Nm zpool Cm status
	output.
	See the
	.Fl c
	option of
	.Nm zpool Cm iostat
	for complete details.
	.It Fl i
	Display vdev initialization status.
	.It Fl g
	Display vdev GUIDs instead of the normal device names
	These GUIDs can be used in place of device names for the zpool
	detach/offline/remove/replace commands.
	.It Fl L
	Display real paths for vdevs resolving all symbolic links.
	This can be used to look up the current block device name regardless of the
	.Pa /dev/disk/
	path used to open it.
	.It Fl p
	Display numbers in parsable (exact) values.
	.It Fl P
	Display full paths for vdevs instead of only the last component of
	the path.
	This can be used in conjunction with the
	.Fl L
	flag.
	.It Fl D
	Display a histogram of deduplication statistics, showing the allocated
	.Pq physically present on disk
	and referenced
	.Pq logically referenced in the pool
	block counts and sizes by reference count.
	.It Fl s
	Display the number of leaf VDEV slow IOs.
	This is the number of IOs that
	didn't complete in
	.Sy zio_slow_io_ms
	milliseconds (default 30 seconds).
	This does not necessarily mean the IOs failed to complete, just took an
	unreasonably long amount of time.
	This may indicate a problem with the underlying storage.
	.It Fl t
	Display vdev TRIM status.
	.It Fl T Sy u Ns \| Ns Sy d
	Display a time stamp.
	Specify
	.Sy u
	for a printed representation of the internal representation of time.
	See
	.Xr time 2 .
	Specify
	.Sy d
	for standard date format.
	See
	.Xr date 1 .
	.It Fl v
	Displays verbose data error information, printing out a complete list of all
	data errors since the last complete pool scrub.
	.It Fl x
	Only display status for pools that are exhibiting errors or are otherwise
	unavailable.
	Warnings about pools not using the latest on-disk format will not be included.
	.El
	.
	.Sh SEE ALSO
	.Xr zpool-events 8 ,
	.Xr zpool-history 8 ,
	.Xr zpool-iostat 8 ,
	.Xr zpool-list 8 ,
	.Xr zpool-resilver 8 ,
	.Xr zpool-scrub 8 ,
	.Xr zpool-wait 8
	diff --git a/sys/contrib/openzfs/man/man8/zpool-sync.8 b/sys/contrib/openzfs/man/man8/zpool-sync.8
	index 6d4aa2c29c48..aa68a5729e9f 100644
	--- a/sys/contrib/openzfs/man/man8/zpool-sync.8
	+++ b/sys/contrib/openzfs/man/man8/zpool-sync.8
	@@ -1,53 +1,53 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\"
	.Dd August 9, 2019
	.Dt ZPOOL-SYNC 8
	.Os
	.
	.Sh NAME
	.Nm zpool-sync
	.Nd flush data to primary storage of ZFS storage pools
	.Sh SYNOPSIS
	.Nm zpool
	.Cm sync
	.Oo Ar pool Oc Ns …
	.
	.Sh DESCRIPTION
	This command forces all in-core dirty data to be written to the primary
	pool storage and not the ZIL.
	It will also update administrative information including quota reporting.
	Without arguments,
	.Nm zpool Cm sync
	will sync all pools on the system.
	Otherwise, it will sync only the specified pools.
	.
	.Sh SEE ALSO
	+.Xr zpoolconcepts 7 ,
	.Xr zpool-export 8 ,
	-.Xr zpool-iostat 8 ,
	-.Xr zpoolconcepts 8
	+.Xr zpool-iostat 8
	diff --git a/sys/contrib/openzfs/man/man8/zpool-trim.8 b/sys/contrib/openzfs/man/man8/zpool-trim.8
	index f709dd85414c..d9a7b4400301 100644
	--- a/sys/contrib/openzfs/man/man8/zpool-trim.8
	+++ b/sys/contrib/openzfs/man/man8/zpool-trim.8
	@@ -1,91 +1,91 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\"
	.Dd May 27, 2021
	.Dt ZPOOL-TRIM 8
	.Os
	.
	.Sh NAME
	.Nm zpool-trim
	.Nd initiate TRIM of free space in ZFS storage pool
	.Sh SYNOPSIS
	.Nm zpool
	.Cm trim
	.Op Fl dw
	.Op Fl r Ar rate
	.Op Fl c Ns \| Ns Fl s
	.Ar pool
	.Oo Ar device Ns Oc Ns …
	.
	.Sh DESCRIPTION
	Initiates an immediate on-demand TRIM operation for all of the free space in
	a pool.
	This operation informs the underlying storage devices of all blocks
	in the pool which are no longer allocated and allows thinly provisioned
	devices to reclaim the space.
	.Pp
	A manual on-demand TRIM operation can be initiated irrespective of the
	.Sy autotrim
	pool property setting.
	See the documentation for the
	.Sy autotrim
	property above for the types of vdev devices which can be trimmed.
	.Bl -tag -width Ds
	.It Fl d , -secure
	Causes a secure TRIM to be initiated.
	When performing a secure TRIM, the
	device guarantees that data stored on the trimmed blocks has been erased.
	This requires support from the device and is not supported by all SSDs.
	.It Fl r , -rate Ar rate
	Controls the rate at which the TRIM operation progresses.
	Without this
	option TRIM is executed as quickly as possible.
	The rate, expressed in bytes
	per second, is applied on a per-vdev basis and may be set differently for
	each leaf vdev.
	.It Fl c , -cancel
	Cancel trimming on the specified devices, or all eligible devices if none
	are specified.
	If one or more target devices are invalid or are not currently being
	trimmed, the command will fail and no cancellation will occur on any device.
	.It Fl s , -suspend
	Suspend trimming on the specified devices, or all eligible devices if none
	are specified.
	If one or more target devices are invalid or are not currently being
	trimmed, the command will fail and no suspension will occur on any device.
	Trimming can then be resumed by running
	.Nm zpool Cm trim
	with no flags on the relevant target devices.
	.It Fl w , -wait
	Wait until the devices are done being trimmed before returning.
	.El
	.
	.Sh SEE ALSO
	+.Xr zpoolprops 7 ,
	.Xr zpool-initialize 8 ,
	-.Xr zpool-wait 8 ,
	-.Xr zpoolprops 8
	+.Xr zpool-wait 8
	diff --git a/sys/contrib/openzfs/man/man8/zpool-upgrade.8 b/sys/contrib/openzfs/man/man8/zpool-upgrade.8
	index 0e67e7884c72..1b13bad898bf 100644
	--- a/sys/contrib/openzfs/man/man8/zpool-upgrade.8
	+++ b/sys/contrib/openzfs/man/man8/zpool-upgrade.8
	@@ -1,109 +1,109 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\" Copyright (c) 2021, Colm Buckley <colm@tuatha.org>
	.\"
	.Dd August 9, 2019
	.Dt ZPOOL-UPGRADE 8
	.Os
	.
	.Sh NAME
	.Nm zpool-upgrade
	.Nd manage version and feature flags of ZFS storage pools
	.Sh SYNOPSIS
	.Nm zpool
	.Cm upgrade
	.Nm zpool
	.Cm upgrade
	.Fl v
	.Nm zpool
	.Cm upgrade
	.Op Fl V Ar version
	.Fl a Ns \| Ns Ar pool Ns …
	.
	.Sh DESCRIPTION
	.Bl -tag -width Ds
	.It Xo
	.Nm zpool
	.Cm upgrade
	.Xc
	Displays pools which do not have all supported features enabled and pools
	formatted using a legacy ZFS version number.
	These pools can continue to be used, but some features may not be available.
	Use
	.Nm zpool Cm upgrade Fl a
	to enable all features on all pools (subject to the
	.Fl o Sy compatibility
	property).
	.It Xo
	.Nm zpool
	.Cm upgrade
	.Fl v
	.Xc
	Displays legacy ZFS versions supported by the this version of ZFS.
	See
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	for a description of feature flags features supported by this version of ZFS.
	.It Xo
	.Nm zpool
	.Cm upgrade
	.Op Fl V Ar version
	.Fl a Ns \| Ns Ar pool Ns …
	.Xc
	Enables all supported features on the given pool.
	.Pp
	If the pool has specified compatibility feature sets using the
	.Fl o Sy compatibility
	property, only the features present in all requested compatibility sets will be
	enabled.
	If this property is set to
	.Ar legacy
	then no upgrade will take place.
	.Pp
	Once this is done, the pool will no longer be accessible on systems that do not
	support feature flags.
	See
	-.Xr zpool-features 5
	+.Xr zpool-features 7
	for details on compatibility with systems that support feature flags, but do not
	support all features enabled on the pool.
	.Bl -tag -width Ds
	.It Fl a
	Enables all supported features (from specified compatibility sets, if any) on all
	pools.
	.It Fl V Ar version
	Upgrade to the specified legacy version.
	If specified, no features will be enabled on the pool.
	This option can only be used to increase the version number up to the last
	supported legacy version number.
	.El
	.El
	.
	.Sh SEE ALSO
	-.Xr zpool-features 5 ,
	-.Xr zpool-history 8 ,
	-.Xr zpoolconcepts 8 ,
	-.Xr zpoolprops 8
	+.Xr zpool-features 7 ,
	+.Xr zpoolconcepts 7 ,
	+.Xr zpoolprops 7 ,
	+.Xr zpool-history 8
	diff --git a/sys/contrib/openzfs/man/man8/zpool.8 b/sys/contrib/openzfs/man/man8/zpool.8
	index dac35eee77b9..192a8e2eac8d 100644
	--- a/sys/contrib/openzfs/man/man8/zpool.8
	+++ b/sys/contrib/openzfs/man/man8/zpool.8
	@@ -1,563 +1,560 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	.\" or http://www.opensolaris.org/os/licensing.
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
	.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
	.\" Copyright (c) 2017 Datto Inc.
	.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
	.\" Copyright 2017 Nexenta Systems, Inc.
	.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	.\"
	.Dd June 2, 2021
	.Dt ZPOOL 8
	.Os
	.
	.Sh NAME
	.Nm zpool
	.Nd configure ZFS storage pools
	.Sh SYNOPSIS
	.Nm
	.Fl ?V
	.Nm
	.Cm version
	.Nm
	.Cm subcommand
	.Op Ar argumentss
	.
	.Sh DESCRIPTION
	The
	.Nm
	command configures ZFS storage pools.
	A storage pool is a collection of devices that provides physical storage and
	data replication for ZFS datasets.
	All datasets within a storage pool share the same space.
	See
	.Xr zfs 8
	for information on managing datasets.
	.Pp
	For an overview of creating and managing ZFS storage pools see the
	-.Xr zpoolconcepts 8
	+.Xr zpoolconcepts 7
	manual page.
	.
	.Sh SUBCOMMANDS
	All subcommands that modify state are logged persistently to the pool in their
	original form.
	.Pp
	The
	.Nm
	command provides subcommands to create and destroy storage pools, add capacity
	to storage pools, and provide information about the storage pools.
	The following subcommands are supported:
	.Bl -tag -width Ds
	.It Xo
	.Nm
	.Fl ?\&
	.Xc
	Displays a help message.
	.It Xo
	.Nm
	.Fl V , -version
	.Xc
	.It Xo
	.Nm
	.Cm version
	.Xc
	Displays the software version of the
	.Nm
	userland utility and the ZFS kernel module.
	.El
	.
	.Ss Creation
	.Bl -tag -width Ds
	.It Xr zpool-create 8
	Creates a new storage pool containing the virtual devices specified on the
	command line.
	.It Xr zpool-initialize 8
	Begins initializing by writing to all unallocated regions on the specified
	devices, or all eligible devices in the pool if no individual devices are
	specified.
	.El
	.
	.Ss Destruction
	.Bl -tag -width Ds
	.It Xr zpool-destroy 8
	Destroys the given pool, freeing up any devices for other use.
	.It Xr zpool-labelclear 8
	Removes ZFS label information from the specified
	.Ar device .
	.El
	.
	.Ss Virtual Devices
	.Bl -tag -width Ds
	.It Xo
	.Xr zpool-attach 8 Ns / Ns Xr zpool-detach 8
	.Xc
	Increases or decreases redundancy by
	.Cm attach Ns ing or
	.Cm detach Ns ing a device on an existing vdev (virtual device).
	.It Xo
	.Xr zpool-add 8 Ns / Ns Xr zpool-remove 8
	.Xc
	Adds the specified virtual devices to the given pool,
	or removes the specified device from the pool.
	.It Xr zpool-replace 8
	Replaces an existing device (which may be faulted) with a new one.
	.It Xr zpool-split 8
	Creates a new pool by splitting all mirrors in an existing pool (which decreases its redundancy).
	.El
	.
	.Ss Properties
	Available pool properties listed in the
	-.Xr zpoolprops 8
	+.Xr zpoolprops 7
	manual page.
	.Bl -tag -width Ds
	.It Xr zpool-list 8
	Lists the given pools along with a health status and space usage.
	.It Xo
	.Xr zpool-get 8 Ns / Ns Xr zpool-set 8
	.Xc
	Retrieves the given list of properties
	.Po
	or all properties if
	.Sy all
	is used
	.Pc
	for the specified storage pool(s).
	.El
	.
	.Ss Monitoring
	.Bl -tag -width Ds
	.It Xr zpool-status 8
	Displays the detailed health status for the given pools.
	.It Xr zpool-iostat 8
	Displays logical I/O statistics for the given pools/vdevs. Physical I/Os may
	be observed via
	.Xr iostat 1 .
	.It Xr zpool-events 8
	Lists all recent events generated by the ZFS kernel modules.
	These events are consumed by the
	.Xr zed 8
	and used to automate administrative tasks such as replacing a failed device
	with a hot spare.
	-For more information about the subclasses and event payloads
	-that can be generated see the
	-.Xr zfs-events 5
	-man page.
	+That manual page also describes the subclasses and event payloads
	+that can be generated.
	.It Xr zpool-history 8
	Displays the command history of the specified pool(s) or all pools if no pool is
	specified.
	.El
	.
	.Ss Maintenance
	.Bl -tag -width Ds
	.It Xr zpool-scrub 8
	Begins a scrub or resumes a paused scrub.
	.It Xr zpool-checkpoint 8
	Checkpoints the current state of
	.Ar pool ,
	which can be later restored by
	.Nm zpool Cm import Fl -rewind-to-checkpoint .
	.It Xr zpool-trim 8
	Initiates an immediate on-demand TRIM operation for all of the free space in a pool.
	This operation informs the underlying storage devices of all blocks
	in the pool which are no longer allocated and allows thinly provisioned
	devices to reclaim the space.
	.It Xr zpool-sync 8
	This command forces all in-core dirty data to be written to the primary
	pool storage and not the ZIL.
	It will also update administrative information including quota reporting.
	Without arguments,
	.Nm zpool Cm sync
	will sync all pools on the system.
	Otherwise, it will sync only the specified pool(s).
	.It Xr zpool-upgrade 8
	Manage the on-disk format version of storage pools.
	.It Xr zpool-wait 8
	Waits until all background activity of the given types has ceased in the given
	pool.
	.El
	.
	.Ss Fault Resolution
	.Bl -tag -width Ds
	.It Xo
	.Xr zpool-offline 8 Ns / Ns Xr zpool-online 8
	.Xc
	Takes the specified physical device offline or brings it online.
	.It Xr zpool-resilver 8
	Starts a resilver.
	If an existing resilver is already running it will be restarted from the beginning.
	.It Xr zpool-reopen 8
	Reopen all the vdevs associated with the pool.
	.It Xr zpool-clear 8
	Clears device errors in a pool.
	.El
	.
	.Ss Import & Export
	.Bl -tag -width Ds
	.It Xr zpool-import 8
	Make disks containing ZFS storage pools available for use on the system.
	.It Xr zpool-export 8
	Exports the given pools from the system.
	.It Xr zpool-reguid 8
	Generates a new unique identifier for the pool.
	.El
	.
	.Sh EXIT STATUS
	The following exit values are returned:
	.Bl -tag -compact -offset 4n -width "a"
	.It Sy 0
	Successful completion.
	.It Sy 1
	An error occurred.
	.It Sy 2
	Invalid command line options were specified.
	.El
	.
	.Sh EXAMPLES
	.Bl -tag -width "Exam"
	.It Sy Example 1 : No Creating a RAID-Z Storage Pool
	The following command creates a pool with a single raidz root vdev that
	consists of six disks:
	.Dl # Nm zpool Cm create Ar tank Sy raidz Ar sda sdb sdc sdd sde sdf
	.
	.It Sy Example 2 : No Creating a Mirrored Storage Pool
	The following command creates a pool with two mirrors, where each mirror
	contains two disks:
	.Dl # Nm zpool Cm create Ar tank Sy mirror Ar sda sdb Sy mirror Ar sdc sdd
	.
	.It Sy Example 3 : No Creating a ZFS Storage Pool by Using Partitions
	The following command creates an unmirrored pool using two disk partitions:
	.Dl # Nm zpool Cm create Ar tank sda1 sdb2
	.
	.It Sy Example 4 : No Creating a ZFS Storage Pool by Using Files
	The following command creates an unmirrored pool using files.
	While not recommended, a pool based on files can be useful for experimental
	purposes.
	.Dl # Nm zpool Cm create Ar tank /path/to/file/a /path/to/file/b
	.
	.It Sy Example 5 : No Adding a Mirror to a ZFS Storage Pool
	The following command adds two mirrored disks to the pool
	.Ar tank ,
	assuming the pool is already made up of two-way mirrors.
	The additional space is immediately available to any datasets within the pool.
	.Dl # Nm zpool Cm add Ar tank Sy mirror Ar sda sdb
	.
	.It Sy Example 6 : No Listing Available ZFS Storage Pools
	The following command lists all available pools on the system.
	In this case, the pool
	.Ar zion
	is faulted due to a missing device.
	The results from this command are similar to the following:
	.Bd -literal -compact -offset Ds
	.No # Nm zpool Cm list
	NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
	rpool 19.9G 8.43G 11.4G - 33% 42% 1.00x ONLINE -
	tank 61.5G 20.0G 41.5G - 48% 32% 1.00x ONLINE -
	zion - - - - - - - FAULTED -
	.Ed
	.
	.It Sy Example 7 : No Destroying a ZFS Storage Pool
	The following command destroys the pool
	.Ar tank
	and any datasets contained within:
	.Dl # Nm zpool Cm destroy Fl f Ar tank
	.
	.It Sy Example 8 : No Exporting a ZFS Storage Pool
	The following command exports the devices in pool
	.Ar tank
	so that they can be relocated or later imported:
	.Dl # Nm zpool Cm export Ar tank
	.
	.It Sy Example 9 : No Importing a ZFS Storage Pool
	The following command displays available pools, and then imports the pool
	.Ar tank
	for use on the system.
	The results from this command are similar to the following:
	.Bd -literal -compact -offset Ds
	.No # Nm zpool Cm import
	pool: tank
	id: 15451357997522795478
	state: ONLINE
	action: The pool can be imported using its name or numeric identifier.
	config:

	tank ONLINE
	mirror ONLINE
	sda ONLINE
	sdb ONLINE

	.No # Nm zpool Cm import Ar tank
	.Ed
	.
	.It Sy Example 10 : No Upgrading All ZFS Storage Pools to the Current Version
	The following command upgrades all ZFS Storage pools to the current version of
	the software:
	.Bd -literal -compact -offset Ds
	.No # Nm zpool Cm upgrade Fl a
	This system is currently running ZFS version 2.
	.Ed
	.
	.It Sy Example 11 : No Managing Hot Spares
	The following command creates a new pool with an available hot spare:
	.Dl # Nm zpool Cm create Ar tank Sy mirror Ar sda sdb Sy spare Ar sdc
	.Pp
	If one of the disks were to fail, the pool would be reduced to the degraded
	state.
	The failed device can be replaced using the following command:
	.Dl # Nm zpool Cm replace Ar tank sda sdd
	.Pp
	Once the data has been resilvered, the spare is automatically removed and is
	made available for use should another device fail.
	The hot spare can be permanently removed from the pool using the following
	command:
	.Dl # Nm zpool Cm remove Ar tank sdc
	.
	.It Sy Example 12 : No Creating a ZFS Pool with Mirrored Separate Intent Logs
	The following command creates a ZFS storage pool consisting of two, two-way
	mirrors and mirrored log devices:
	.Dl # Nm zpool Cm create Ar pool Sy mirror Ar sda sdb Sy mirror Ar sdc sdd Sy log mirror Ar sde sdf
	.
	.It Sy Example 13 : No Adding Cache Devices to a ZFS Pool
	The following command adds two disks for use as cache devices to a ZFS storage
	pool:
	.Dl # Nm zpool Cm add Ar pool Sy cache Ar sdc sdd
	.Pp
	Once added, the cache devices gradually fill with content from main memory.
	Depending on the size of your cache devices, it could take over an hour for
	them to fill.
	Capacity and reads can be monitored using the
	.Cm iostat
	subcommand as follows:
	.Dl # Nm zpool Cm iostat Fl v Ar pool 5
	.
	.It Sy Example 14 : No Removing a Mirrored top-level (Log or Data) Device
	The following commands remove the mirrored log device
	.Sy mirror-2
	and mirrored top-level data device
	.Sy mirror-1 .
	.Pp
	Given this configuration:
	.Bd -literal -compact -offset Ds
	pool: tank
	state: ONLINE
	scrub: none requested
	config:

	NAME STATE READ WRITE CKSUM
	tank ONLINE 0 0 0
	mirror-0 ONLINE 0 0 0
	sda ONLINE 0 0 0
	sdb ONLINE 0 0 0
	mirror-1 ONLINE 0 0 0
	sdc ONLINE 0 0 0
	sdd ONLINE 0 0 0
	logs
	mirror-2 ONLINE 0 0 0
	sde ONLINE 0 0 0
	sdf ONLINE 0 0 0
	.Ed
	.Pp
	The command to remove the mirrored log
	.Ar mirror-2 No is:
	.Dl # Nm zpool Cm remove Ar tank mirror-2
	.Pp
	The command to remove the mirrored data
	.Ar mirror-1 No is:
	.Dl # Nm zpool Cm remove Ar tank mirror-1
	.
	.It Sy Example 15 : No Displaying expanded space on a device
	The following command displays the detailed information for the pool
	.Ar data .
	This pool is comprised of a single raidz vdev where one of its devices
	increased its capacity by 10GB.
	In this example, the pool will not be able to utilize this extra capacity until
	all the devices under the raidz vdev have been expanded.
	.Bd -literal -compact -offset Ds
	.No # Nm zpool Cm list Fl v Ar data
	NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
	data 23.9G 14.6G 9.30G - 48% 61% 1.00x ONLINE -
	raidz1 23.9G 14.6G 9.30G - 48%
	sda - - - - -
	sdb - - - 10G -
	sdc - - - - -
	.Ed
	.
	.It Sy Example 16 : No Adding output columns
	Additional columns can be added to the
	.Nm zpool Cm status No and Nm zpool Cm iostat No output with Fl c .
	.Bd -literal -compact -offset Ds
	.No # Nm zpool Cm status Fl c Ar vendor , Ns Ar model , Ns Ar size
	NAME STATE READ WRITE CKSUM vendor model size
	tank ONLINE 0 0 0
	mirror-0 ONLINE 0 0 0
	U1 ONLINE 0 0 0 SEAGATE ST8000NM0075 7.3T
	U10 ONLINE 0 0 0 SEAGATE ST8000NM0075 7.3T
	U11 ONLINE 0 0 0 SEAGATE ST8000NM0075 7.3T
	U12 ONLINE 0 0 0 SEAGATE ST8000NM0075 7.3T
	U13 ONLINE 0 0 0 SEAGATE ST8000NM0075 7.3T
	U14 ONLINE 0 0 0 SEAGATE ST8000NM0075 7.3T

	.No # Nm zpool Cm iostat Fl vc Ar size
	capacity operations bandwidth
	pool alloc free read write read write size
	---------- ----- ----- ----- ----- ----- ----- ----
	rpool 14.6G 54.9G 4 55 250K 2.69M
	sda1 14.6G 54.9G 4 55 250K 2.69M 70G
	---------- ----- ----- ----- ----- ----- ----- ----
	.Ed
	.El
	.
	.Sh ENVIRONMENT VARIABLES
	.Bl -tag -compact -width "ZPOOL_IMPORT_UDEV_TIMEOUT_MS"
	.It Sy ZFS_ABORT
	Cause
	.Nm
	to dump core on exit for the purposes of running
	.Sy ::findleaks .
	.It Sy ZFS_COLOR
	Use ANSI color in
	.Nm zpool status
	output.
	.It Sy ZPOOL_IMPORT_PATH
	The search path for devices or files to use with the pool.
	This is a colon-separated list of directories in which
	.Nm
	looks for device nodes and files.
	Similar to the
	.Fl d
	option in
	.Nm zpool import .
	.It Sy ZPOOL_IMPORT_UDEV_TIMEOUT_MS
	The maximum time in milliseconds that
	.Nm zpool import
	will wait for an expected device to be available.
	.It Sy ZPOOL_STATUS_NON_NATIVE_ASHIFT_IGNORE
	If set, suppress warning about non-native vdev ashift in
	.Nm zpool status .
	The value is not used, only the presence or absence of the variable matters.
	.It Sy ZPOOL_VDEV_NAME_GUID
	Cause
	.Nm
	subcommands to output vdev guids by default.
	This behavior is identical to the
	.Nm zpool Cm status Fl g
	command line option.
	.It Sy ZPOOL_VDEV_NAME_FOLLOW_LINKS
	Cause
	.Nm
	subcommands to follow links for vdev names by default.
	This behavior is identical to the
	.Nm zpool Cm status Fl L
	command line option.
	.It Sy ZPOOL_VDEV_NAME_PATH
	Cause
	.Nm
	subcommands to output full vdev path names by default.
	This behavior is identical to the
	.Nm zpool Cm status Fl P
	command line option.
	.It Sy ZFS_VDEV_DEVID_OPT_OUT
	Older OpenZFS implementations had issues when attempting to display pool
	config VDEV names if a
	.Sy devid
	NVP value is present in the pool's config.
	.Pp
	For example, a pool that originated on illumos platform would have a
	.Sy devid
	value in the config and
	.Nm zpool status
	would fail when listing the config.
	This would also be true for future Linux-based pools.
	.Pp
	A pool can be stripped of any
	.Sy devid
	values on import or prevented from adding
	them on
	.Nm zpool Cm create
	or
	.Nm zpool Cm add
	by setting
	.Sy ZFS_VDEV_DEVID_OPT_OUT .
	.Pp
	.It Sy ZPOOL_SCRIPTS_AS_ROOT
	Allow a privileged user to run
	.Nm zpool status/iostat Fl c .
	Normally, only unprivileged users are allowed to run
	.Fl c .
	.It Sy ZPOOL_SCRIPTS_PATH
	The search path for scripts when running
	.Nm zpool status/iostat Fl c .
	This is a colon-separated list of directories and overrides the default
	.Pa ~/.zpool.d
	and
	.Pa /etc/zfs/zpool.d
	search paths.
	.It Sy ZPOOL_SCRIPTS_ENABLED
	Allow a user to run
	.Nm zpool status/iostat Fl c .
	If
	.Sy ZPOOL_SCRIPTS_ENABLED
	is not set, it is assumed that the user is allowed to run
	.Nm zpool Cm status Ns / Ns Cm iostat Fl c .
	.El
	.
	.Sh INTERFACE STABILITY
	.Sy Evolving
	.
	.Sh SEE ALSO
	-.Xr zfs-events 5 ,
	-.Xr zfs-module-parameters 5 ,
	-.Xr zpool-features 5 ,
	+.Xr zfs 4 ,
	+.Xr zpool-features 7 ,
	+.Xr zpoolconcepts 7 ,
	+.Xr zpoolprops 7 ,
	.Xr zed 8 ,
	.Xr zfs 8 ,
	.Xr zpool-add 8 ,
	.Xr zpool-attach 8 ,
	.Xr zpool-checkpoint 8 ,
	.Xr zpool-clear 8 ,
	.Xr zpool-create 8 ,
	.Xr zpool-destroy 8 ,
	.Xr zpool-detach 8 ,
	.Xr zpool-events 8 ,
	.Xr zpool-export 8 ,
	.Xr zpool-get 8 ,
	.Xr zpool-history 8 ,
	.Xr zpool-import 8 ,
	.Xr zpool-initialize 8 ,
	.Xr zpool-iostat 8 ,
	.Xr zpool-labelclear 8 ,
	.Xr zpool-list 8 ,
	.Xr zpool-offline 8 ,
	.Xr zpool-online 8 ,
	.Xr zpool-reguid 8 ,
	.Xr zpool-remove 8 ,
	.Xr zpool-reopen 8 ,
	.Xr zpool-replace 8 ,
	.Xr zpool-resilver 8 ,
	.Xr zpool-scrub 8 ,
	.Xr zpool-set 8 ,
	.Xr zpool-split 8 ,
	.Xr zpool-status 8 ,
	.Xr zpool-sync 8 ,
	.Xr zpool-trim 8 ,
	.Xr zpool-upgrade 8 ,
	-.Xr zpool-wait 8 ,
	-.Xr zpoolconcepts 8 ,
	-.Xr zpoolprops 8
	+.Xr zpool-wait 8
	diff --git a/sys/contrib/openzfs/man/man8/zpool_influxdb.8 b/sys/contrib/openzfs/man/man8/zpool_influxdb.8
	index a4e417078fd3..021fbdeaac8a 100644
	--- a/sys/contrib/openzfs/man/man8/zpool_influxdb.8
	+++ b/sys/contrib/openzfs/man/man8/zpool_influxdb.8
	@@ -1,98 +1,98 @@
	.\"
	.\" CDDL HEADER START
	.\"
	.\" The contents of this file are subject to the terms of the
	.\" Common Development and Distribution License (the "License").
	.\" You may not use this file except in compliance with the License.
	.\"
	.\" You can obtain a copy of the license at
	.\" https://opensource.org/licenses/CDDL-1.0
	.\" See the License for the specific language governing permissions
	.\" and limitations under the License.
	.\"
	.\" When distributing Covered Code, include this CDDL HEADER in each
	.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	.\" If applicable, add the following below this CDDL HEADER, with the
	.\" fields enclosed by brackets "[]" replaced with your own identifying
	.\" information: Portions Copyright [yyyy] [name of copyright owner]
	.\"
	.\" CDDL HEADER END
	.\"
	.\" Copyright 2020 Richard Elling
	.\"
	.Dd May 26, 2021
	.Dt ZPOOL_INFLUXDB 8
	.Os
	.
	.Sh NAME
	.Nm zpool_influxdb
	.Nd collect ZFS pool statistics in InfluxDB line protocol format
	.Sh SYNOPSIS
	.Nm
	.Op Fl e Ns \| Ns Fl -execd
	.Op Fl n Ns \| Ns Fl -no-histogram
	.Op Fl s Ns \| Ns Fl -sum-histogram-buckets
	-.Op Fl t Ns \| Ns Fl -tags Ar key Ns = Ns Ar value Ns Op , Ns Ar key Ns = Ns Ar value Ns …
	+.Op Fl t Ns \| Ns Fl -tags Ar key Ns = Ns Ar value Ns Oo , Ns Ar key Ns = Ns Ar value Oc Ns …
	.Op Ar pool
	.
	.Sh DESCRIPTION
	.Nm
	produces InfluxDB-line-protocol-compatible metrics from zpools.
	Like the
	.Nm zpool
	command,
	.Nm
	reads the current pool status and statistics.
	Unlike the
	.Nm zpool
	command which is intended for humans,
	.Nm
	formats the output in the InfluxDB line protocol.
	The expected use is as a plugin to a
	metrics collector or aggregator, such as Telegraf.
	.Pp
	By default,
	.Nm
	prints pool metrics and status in the InfluxDB line protocol format.
	All pools are printed, similar to the
	.Nm zpool Cm status
	command.
	Providing a pool name restricts the output to the named pool.
	.
	.Sh OPTIONS
	.Bl -tag -width "-e, --execd"
	.It Fl e , -execd
	Run in daemon mode compatible with Telegraf's
	.Nm execd
	plugin.
	In this mode, the pools are sampled every time a
	newline appears on the standard input.
	.It Fl n , -no-histogram
	Do not print latency and I/O size histograms.
	This can reduce the total
	amount of data, but one should consider the value brought by the insights
	that latency and I/O size distributions provide.
	The resulting values
	are suitable for graphing with Grafana's heatmap plugin.
	.It Fl s , -sum-histogram-buckets
	Accumulates bucket values.
	By default, the values are not accumulated and the raw data appears as shown by
	.Nm zpool Cm iostat .
	This works well for Grafana's heatmap plugin.
	Summing the buckets produces output similar to Prometheus histograms.
	-.It Fl t , Fl -tags Ar key Ns = Ns Ar value Ns Op , Ns Ar key Ns = Ns Ar value Ns …
	+.It Fl t , Fl -tags Ar key Ns = Ns Ar value Ns Oo , Ns Ar key Ns = Ns Ar value Oc Ns …
	Adds specified tags to the tag set.
	No sanity checking is performed.
	See the InfluxDB Line Protocol format documentation for details on escaping
	special characters used in tags.
	.It Fl h , -help
	Print a usage summary.
	.El
	.
	.Sh SEE ALSO
	.Xr zpool-iostat 8 ,
	.Xr zpool-status 8 ,
	.Lk https://github.com/influxdata/influxdb "InfluxDB" ,
	.Lk https://github.com/influxdata/telegraf "Telegraf" ,
	.Lk https://grafana.com "Grafana" ,
	.Lk https://prometheus.io "Prometheus"
	diff --git a/sys/contrib/openzfs/module/os/freebsd/spl/spl_kstat.c b/sys/contrib/openzfs/module/os/freebsd/spl/spl_kstat.c
	index e591921ace1b..059ada235c4a 100644
	--- a/sys/contrib/openzfs/module/os/freebsd/spl/spl_kstat.c
	+++ b/sys/contrib/openzfs/module/os/freebsd/spl/spl_kstat.c
	@@ -1,572 +1,510 @@
	/*
	* Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
	* All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.
	*
	* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	* SUCH DAMAGE.
	*
	* Links to Illumos.org for more information on kstat function:
	* [1] https://illumos.org/man/1M/kstat
	* [2] https://illumos.org/man/9f/kstat_create
	*/

	#include <sys/cdefs.h>
	__FBSDID("$FreeBSD$");

	#include <sys/types.h>
	#include <sys/param.h>
	#include <sys/kernel.h>
	#include <sys/systm.h>
	#include <sys/malloc.h>
	#include <sys/sysctl.h>
	#include <sys/kstat.h>
	#include <sys/sbuf.h>

	static MALLOC_DEFINE(M_KSTAT, "kstat_data", "Kernel statistics");

	SYSCTL_ROOT_NODE(OID_AUTO, kstat, CTLFLAG_RW, 0, "Kernel statistics");

	void
	__kstat_set_raw_ops(kstat_t *ksp,
	int (headers)(char buf, size_t size),
	int (data)(char buf, size_t size, void *data),
	void (addr)(kstat_t *ksp, loff_t index))
	{
	ksp->ks_raw_ops.headers = headers;
	ksp->ks_raw_ops.data = data;
	ksp->ks_raw_ops.addr = addr;
	}

	void
	__kstat_set_seq_raw_ops(kstat_t *ksp,
	int (headers)(struct seq_file f),
	int (data)(char buf, size_t size, void *data),
	void (addr)(kstat_t *ksp, loff_t index))
	{
	ksp->ks_raw_ops.seq_headers = headers;
	ksp->ks_raw_ops.data = data;
	ksp->ks_raw_ops.addr = addr;
	}

	static int
	kstat_default_update(kstat_t *ksp, int rw)
	{
	ASSERT3P(ksp, !=, NULL);

	if (rw == KSTAT_WRITE)
	return (EACCES);

	return (0);
	}

	static int
	kstat_resize_raw(kstat_t *ksp)
	{
	if (ksp->ks_raw_bufsize == KSTAT_RAW_MAX)
	return (ENOMEM);

	free(ksp->ks_raw_buf, M_TEMP);
	ksp->ks_raw_bufsize = MIN(ksp->ks_raw_bufsize * 2, KSTAT_RAW_MAX);
	ksp->ks_raw_buf = malloc(ksp->ks_raw_bufsize, M_TEMP, M_WAITOK);

	return (0);
	}

	static void *
	kstat_raw_default_addr(kstat_t *ksp, loff_t n)
	{
	if (n == 0)
	return (ksp->ks_data);
	return (NULL);
	}

	static int
	kstat_sysctl(SYSCTL_HANDLER_ARGS)
	{
	kstat_t *ksp = arg1;
	kstat_named_t *ksent;
	uint64_t val;

	ksent = ksp->ks_data;
	/* Select the correct element */
	ksent += arg2;
	/* Update the aggsums before reading */
	(void) ksp->ks_update(ksp, KSTAT_READ);
	val = ksent->value.ui64;

	return (sysctl_handle_64(oidp, &val, 0, req));
	}

	static int
	kstat_sysctl_string(SYSCTL_HANDLER_ARGS)
	{
	kstat_t *ksp = arg1;
	kstat_named_t *ksent = ksp->ks_data;
	char *val;
	uint32_t len = 0;

	/* Select the correct element */
	ksent += arg2;
	/* Update the aggsums before reading */
	(void) ksp->ks_update(ksp, KSTAT_READ);
	val = KSTAT_NAMED_STR_PTR(ksent);
	len = KSTAT_NAMED_STR_BUFLEN(ksent);
	val[len-1] = '\0';

	return (sysctl_handle_string(oidp, val, len, req));
	}

	static int
	kstat_sysctl_io(SYSCTL_HANDLER_ARGS)
	{
	struct sbuf *sb;
	kstat_t *ksp = arg1;
	kstat_io_t *kip = ksp->ks_data;
	int rc;

	sb = sbuf_new_auto();
	if (sb == NULL)
	return (ENOMEM);
	/* Update the aggsums before reading */
	(void) ksp->ks_update(ksp, KSTAT_READ);

	/* though wlentime & friends are signed, they will never be negative */
	sbuf_printf(sb,
	"%-8llu %-8llu %-8u %-8u %-8llu %-8llu "
	"%-8llu %-8llu %-8llu %-8llu %-8u %-8u\n",
	kip->nread, kip->nwritten,
	kip->reads, kip->writes,
	kip->wtime, kip->wlentime, kip->wlastupdate,
	kip->rtime, kip->rlentime, kip->rlastupdate,
	kip->wcnt, kip->rcnt);
	rc = sbuf_finish(sb);
	if (rc == 0)
	rc = SYSCTL_OUT(req, sbuf_data(sb), sbuf_len(sb));
	sbuf_delete(sb);
	return (rc);
	}

	static int
	kstat_sysctl_raw(SYSCTL_HANDLER_ARGS)
	{
	struct sbuf *sb;
	void *data;
	kstat_t *ksp = arg1;
	void (addr_op)(kstat_t *ksp, loff_t index);
	int n, has_header, rc = 0;

	sb = sbuf_new_auto();
	if (sb == NULL)
	return (ENOMEM);

	if (ksp->ks_raw_ops.addr)
	addr_op = ksp->ks_raw_ops.addr;
	else
	addr_op = kstat_raw_default_addr;

	mutex_enter(ksp->ks_lock);

	/* Update the aggsums before reading */
	(void) ksp->ks_update(ksp, KSTAT_READ);

	ksp->ks_raw_bufsize = PAGE_SIZE;
	ksp->ks_raw_buf = malloc(PAGE_SIZE, M_TEMP, M_WAITOK);

	n = 0;
	has_header = (ksp->ks_raw_ops.headers \|\|
	ksp->ks_raw_ops.seq_headers);

	restart_headers:
	if (ksp->ks_raw_ops.headers) {
	rc = ksp->ks_raw_ops.headers(
	ksp->ks_raw_buf, ksp->ks_raw_bufsize);
	} else if (ksp->ks_raw_ops.seq_headers) {
	struct seq_file f;

	f.sf_buf = ksp->ks_raw_buf;
	f.sf_size = ksp->ks_raw_bufsize;
	rc = ksp->ks_raw_ops.seq_headers(&f);
	}
	if (has_header) {
	if (rc == ENOMEM && !kstat_resize_raw(ksp))
	goto restart_headers;
	if (rc == 0)
	sbuf_printf(sb, "\n%s", ksp->ks_raw_buf);
	}

	while ((data = addr_op(ksp, n)) != NULL) {
	restart:
	if (ksp->ks_raw_ops.data) {
	rc = ksp->ks_raw_ops.data(ksp->ks_raw_buf,
	ksp->ks_raw_bufsize, data);
	if (rc == ENOMEM && !kstat_resize_raw(ksp))
	goto restart;
	if (rc == 0)
	sbuf_printf(sb, "%s", ksp->ks_raw_buf);

	} else {
	ASSERT3U(ksp->ks_ndata, ==, 1);
	sbuf_hexdump(sb, ksp->ks_data,
	ksp->ks_data_size, NULL, 0);
	}
	n++;
	}
	free(ksp->ks_raw_buf, M_TEMP);
	mutex_exit(ksp->ks_lock);
	sbuf_trim(sb);
	rc = sbuf_finish(sb);
	if (rc == 0)
	rc = SYSCTL_OUT(req, sbuf_data(sb), sbuf_len(sb));
	sbuf_delete(sb);
	return (rc);
	}

	kstat_t *
	__kstat_create(const char module, int instance, const char name,
	const char *class, uchar_t ks_type, uint_t ks_ndata, uchar_t flags)
	{
	char buf[KSTAT_STRLEN];
	struct sysctl_oid *root;
	kstat_t *ksp;
	char *pool;

	KASSERT(instance == 0, ("instance=%d", instance));
	if ((ks_type == KSTAT_TYPE_INTR) \|\| (ks_type == KSTAT_TYPE_IO))
	ASSERT3U(ks_ndata, ==, 1);

	if (class == NULL)
	class = "misc";

	/*
	* Allocate the main structure. We don't need to keep a copy of
	* module in here, because it is only used for sysctl node creation
	* done in this function.
	*/
	ksp = malloc(sizeof (*ksp), M_KSTAT, M_WAITOK\|M_ZERO);

	ksp->ks_crtime = gethrtime();
	ksp->ks_snaptime = ksp->ks_crtime;
	ksp->ks_instance = instance;
	(void) strlcpy(ksp->ks_name, name, KSTAT_STRLEN);
	(void) strlcpy(ksp->ks_class, class, KSTAT_STRLEN);
	ksp->ks_type = ks_type;
	ksp->ks_flags = flags;
	ksp->ks_update = kstat_default_update;

	mutex_init(&ksp->ks_private_lock, NULL, MUTEX_DEFAULT, NULL);
	ksp->ks_lock = &ksp->ks_private_lock;

	switch (ksp->ks_type) {
	case KSTAT_TYPE_RAW:
	ksp->ks_ndata = 1;
	ksp->ks_data_size = ks_ndata;
	break;
	case KSTAT_TYPE_NAMED:
	ksp->ks_ndata = ks_ndata;
	ksp->ks_data_size = ks_ndata * sizeof (kstat_named_t);
	break;
	case KSTAT_TYPE_INTR:
	ksp->ks_ndata = ks_ndata;
	ksp->ks_data_size = ks_ndata * sizeof (kstat_intr_t);
	break;
	case KSTAT_TYPE_IO:
	ksp->ks_ndata = ks_ndata;
	ksp->ks_data_size = ks_ndata * sizeof (kstat_io_t);
	break;
	case KSTAT_TYPE_TIMER:
	ksp->ks_ndata = ks_ndata;
	ksp->ks_data_size = ks_ndata * sizeof (kstat_timer_t);
	break;
	default:
	panic("Undefined kstat type %d\n", ksp->ks_type);
	}

	if (ksp->ks_flags & KSTAT_FLAG_VIRTUAL)
	ksp->ks_data = NULL;
	else
	ksp->ks_data = kmem_zalloc(ksp->ks_data_size, KM_SLEEP);

	/*
	* Some kstats use a module name like "zfs/poolname" to distinguish a
	* set of kstats belonging to a specific pool. Split on '/' to add an
	* extra node for the pool name if needed.
	*/
	(void) strlcpy(buf, module, KSTAT_STRLEN);
	module = buf;
	pool = strchr(module, '/');
	if (pool != NULL)
	*pool++ = '\0';

	/*
	* Create sysctl tree for those statistics:
	*
	* kstat.<module>[.<pool>].<class>.<name>
	*/
	sysctl_ctx_init(&ksp->ks_sysctl_ctx);
	root = SYSCTL_ADD_NODE(&ksp->ks_sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_kstat), OID_AUTO, module, CTLFLAG_RW, 0,
	"");
	if (root == NULL) {
	printf("%s: Cannot create kstat.%s tree!\n", __func__, module);
	sysctl_ctx_free(&ksp->ks_sysctl_ctx);
	free(ksp, M_KSTAT);
	return (NULL);
	}
	if (pool != NULL) {
	root = SYSCTL_ADD_NODE(&ksp->ks_sysctl_ctx,
	SYSCTL_CHILDREN(root), OID_AUTO, pool, CTLFLAG_RW, 0, "");
	if (root == NULL) {
	printf("%s: Cannot create kstat.%s.%s tree!\n",
	__func__, module, pool);
	sysctl_ctx_free(&ksp->ks_sysctl_ctx);
	free(ksp, M_KSTAT);
	return (NULL);
	}
	}
	root = SYSCTL_ADD_NODE(&ksp->ks_sysctl_ctx, SYSCTL_CHILDREN(root),
	OID_AUTO, class, CTLFLAG_RW, 0, "");
	if (root == NULL) {
	if (pool != NULL)
	printf("%s: Cannot create kstat.%s.%s.%s tree!\n",
	__func__, module, pool, class);
	else
	printf("%s: Cannot create kstat.%s.%s tree!\n",
	__func__, module, class);
	sysctl_ctx_free(&ksp->ks_sysctl_ctx);
	free(ksp, M_KSTAT);
	return (NULL);
	}
	if (ksp->ks_type == KSTAT_TYPE_NAMED) {
	root = SYSCTL_ADD_NODE(&ksp->ks_sysctl_ctx,
	SYSCTL_CHILDREN(root),
	OID_AUTO, name, CTLFLAG_RW, 0, "");
	if (root == NULL) {
	if (pool != NULL)
	printf("%s: Cannot create kstat.%s.%s.%s.%s "
	"tree!\n", __func__, module, pool, class,
	name);
	else
	printf("%s: Cannot create kstat.%s.%s.%s "
	"tree!\n", __func__, module, class, name);
	sysctl_ctx_free(&ksp->ks_sysctl_ctx);
	free(ksp, M_KSTAT);
	return (NULL);
	}

	}
	ksp->ks_sysctl_root = root;

	return (ksp);
	}

	static void
	kstat_install_named(kstat_t *ksp)
	{
	kstat_named_t *ksent;
	char *namelast;
	int typelast;

	ksent = ksp->ks_data;

	VERIFY((ksp->ks_flags & KSTAT_FLAG_VIRTUAL) \|\| ksent != NULL);

	typelast = 0;
	namelast = NULL;

	for (int i = 0; i < ksp->ks_ndata; i++, ksent++) {
	if (ksent->data_type != 0) {
	typelast = ksent->data_type;
	namelast = ksent->name;
	}
	switch (typelast) {
	case KSTAT_DATA_CHAR:
	/* Not Implemented */
	break;
	case KSTAT_DATA_INT32:
	SYSCTL_ADD_PROC(&ksp->ks_sysctl_ctx,
	SYSCTL_CHILDREN(ksp->ks_sysctl_root),
	OID_AUTO, namelast,
	CTLTYPE_S32 \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	ksp, i, kstat_sysctl, "I", namelast);
	break;
	case KSTAT_DATA_UINT32:
	SYSCTL_ADD_PROC(&ksp->ks_sysctl_ctx,
	SYSCTL_CHILDREN(ksp->ks_sysctl_root),
	OID_AUTO, namelast,
	CTLTYPE_U32 \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	ksp, i, kstat_sysctl, "IU", namelast);
	break;
	case KSTAT_DATA_INT64:
	SYSCTL_ADD_PROC(&ksp->ks_sysctl_ctx,
	SYSCTL_CHILDREN(ksp->ks_sysctl_root),
	OID_AUTO, namelast,
	CTLTYPE_S64 \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	ksp, i, kstat_sysctl, "Q", namelast);
	break;
	case KSTAT_DATA_UINT64:
	SYSCTL_ADD_PROC(&ksp->ks_sysctl_ctx,
	SYSCTL_CHILDREN(ksp->ks_sysctl_root),
	OID_AUTO, namelast,
	CTLTYPE_U64 \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	ksp, i, kstat_sysctl, "QU", namelast);
	break;
	case KSTAT_DATA_LONG:
	SYSCTL_ADD_PROC(&ksp->ks_sysctl_ctx,
	SYSCTL_CHILDREN(ksp->ks_sysctl_root),
	OID_AUTO, namelast,
	CTLTYPE_LONG \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	ksp, i, kstat_sysctl, "L", namelast);
	break;
	case KSTAT_DATA_ULONG:
	SYSCTL_ADD_PROC(&ksp->ks_sysctl_ctx,
	SYSCTL_CHILDREN(ksp->ks_sysctl_root),
	OID_AUTO, namelast,
	CTLTYPE_ULONG \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	ksp, i, kstat_sysctl, "LU", namelast);
	break;
	case KSTAT_DATA_STRING:
	SYSCTL_ADD_PROC(&ksp->ks_sysctl_ctx,
	SYSCTL_CHILDREN(ksp->ks_sysctl_root),
	OID_AUTO, namelast,
	CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	ksp, i, kstat_sysctl_string, "A", namelast);
	break;
	default:
	panic("unsupported type: %d", typelast);
	}
	}
	}

	void
	kstat_install(kstat_t *ksp)
	{
	struct sysctl_oid *root;

	if (ksp->ks_ndata == UINT32_MAX)
	VERIFY3U(ksp->ks_type, ==, KSTAT_TYPE_RAW);

	switch (ksp->ks_type) {
	case KSTAT_TYPE_NAMED:
	return (kstat_install_named(ksp));
	case KSTAT_TYPE_RAW:
	if (ksp->ks_raw_ops.data) {
	root = SYSCTL_ADD_PROC(&ksp->ks_sysctl_ctx,
	SYSCTL_CHILDREN(ksp->ks_sysctl_root),
	OID_AUTO, ksp->ks_name, CTLTYPE_STRING \| CTLFLAG_RD
	\| CTLFLAG_MPSAFE \| CTLFLAG_SKIP,
	ksp, 0, kstat_sysctl_raw, "A", ksp->ks_name);
	} else {
	root = SYSCTL_ADD_PROC(&ksp->ks_sysctl_ctx,
	SYSCTL_CHILDREN(ksp->ks_sysctl_root),
	OID_AUTO, ksp->ks_name, CTLTYPE_OPAQUE \| CTLFLAG_RD
	\| CTLFLAG_MPSAFE \| CTLFLAG_SKIP,
	ksp, 0, kstat_sysctl_raw, "", ksp->ks_name);
	}
	break;
	case KSTAT_TYPE_IO:
	root = SYSCTL_ADD_PROC(&ksp->ks_sysctl_ctx,
	SYSCTL_CHILDREN(ksp->ks_sysctl_root),
	OID_AUTO, ksp->ks_name,
	CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	ksp, 0, kstat_sysctl_io, "A", ksp->ks_name);
	break;
	case KSTAT_TYPE_TIMER:
	case KSTAT_TYPE_INTR:
	default:
	panic("unsupported kstat type %d\n", ksp->ks_type);
	}
	VERIFY3P(root, !=, NULL);
	ksp->ks_sysctl_root = root;
	}

	void
	kstat_delete(kstat_t *ksp)
	{

	sysctl_ctx_free(&ksp->ks_sysctl_ctx);
	ksp->ks_lock = NULL;
	mutex_destroy(&ksp->ks_private_lock);
	if (!(ksp->ks_flags & KSTAT_FLAG_VIRTUAL))
	kmem_free(ksp->ks_data, ksp->ks_data_size);
	free(ksp, M_KSTAT);
	}
	-
	-void
	-kstat_waitq_enter(kstat_io_t *kiop)
	-{
	- hrtime_t new, delta;
	- ulong_t wcnt;
	-
	- new = gethrtime();
	- delta = new - kiop->wlastupdate;
	- kiop->wlastupdate = new;
	- wcnt = kiop->wcnt++;
	- if (wcnt != 0) {
	- kiop->wlentime += delta * wcnt;
	- kiop->wtime += delta;
	- }
	-}
	-
	-void
	-kstat_waitq_exit(kstat_io_t *kiop)
	-{
	- hrtime_t new, delta;
	- ulong_t wcnt;
	-
	- new = gethrtime();
	- delta = new - kiop->wlastupdate;
	- kiop->wlastupdate = new;
	- wcnt = kiop->wcnt--;
	- ASSERT3S(wcnt, >, 0);
	- kiop->wlentime += delta * wcnt;
	- kiop->wtime += delta;
	-}
	-
	-void
	-kstat_runq_enter(kstat_io_t *kiop)
	-{
	- hrtime_t new, delta;
	- ulong_t rcnt;
	-
	- new = gethrtime();
	- delta = new - kiop->rlastupdate;
	- kiop->rlastupdate = new;
	- rcnt = kiop->rcnt++;
	- if (rcnt != 0) {
	- kiop->rlentime += delta * rcnt;
	- kiop->rtime += delta;
	- }
	-}
	-
	-void
	-kstat_runq_exit(kstat_io_t *kiop)
	-{
	- hrtime_t new, delta;
	- ulong_t rcnt;
	-
	- new = gethrtime();
	- delta = new - kiop->rlastupdate;
	- kiop->rlastupdate = new;
	- rcnt = kiop->rcnt--;
	- ASSERT3S(rcnt, >, 0);
	- kiop->rlentime += delta * rcnt;
	- kiop->rtime += delta;
	-}
	diff --git a/sys/contrib/openzfs/module/os/linux/spl/spl-kstat.c b/sys/contrib/openzfs/module/os/linux/spl/spl-kstat.c
	index c7f1aadf784e..0c46708326d8 100644
	--- a/sys/contrib/openzfs/module/os/linux/spl/spl-kstat.c
	+++ b/sys/contrib/openzfs/module/os/linux/spl/spl-kstat.c
	@@ -1,781 +1,715 @@
	/*
	* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
	* Copyright (C) 2007 The Regents of the University of California.
	* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
	* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
	* UCRL-CODE-235197
	*
	* This file is part of the SPL, Solaris Porting Layer.
	*
	* The SPL is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License as published by the
	* Free Software Foundation; either version 2 of the License, or (at your
	* option) any later version.
	*
	* The SPL is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* for more details.
	*
	* You should have received a copy of the GNU General Public License along
	* with the SPL. If not, see <http://www.gnu.org/licenses/>.
	*
	* Solaris Porting Layer (SPL) Kstat Implementation.
	*
	* Links to Illumos.org for more information on kstat function:
	* [1] https://illumos.org/man/1M/kstat
	* [2] https://illumos.org/man/9f/kstat_create
	*/

	#include <linux/seq_file.h>
	#include <sys/kstat.h>
	#include <sys/vmem.h>
	#include <sys/cmn_err.h>
	#include <sys/sysmacros.h>

	static kmutex_t kstat_module_lock;
	static struct list_head kstat_module_list;
	static kid_t kstat_id;

	static int
	kstat_resize_raw(kstat_t *ksp)
	{
	if (ksp->ks_raw_bufsize == KSTAT_RAW_MAX)
	return (ENOMEM);

	vmem_free(ksp->ks_raw_buf, ksp->ks_raw_bufsize);
	ksp->ks_raw_bufsize = MIN(ksp->ks_raw_bufsize * 2, KSTAT_RAW_MAX);
	ksp->ks_raw_buf = vmem_alloc(ksp->ks_raw_bufsize, KM_SLEEP);

	return (0);
	}

	-void
	-kstat_waitq_enter(kstat_io_t *kiop)
	-{
	- hrtime_t new, delta;
	- ulong_t wcnt;
	-
	- new = gethrtime();
	- delta = new - kiop->wlastupdate;
	- kiop->wlastupdate = new;
	- wcnt = kiop->wcnt++;
	- if (wcnt != 0) {
	- kiop->wlentime += delta * wcnt;
	- kiop->wtime += delta;
	- }
	-}
	-EXPORT_SYMBOL(kstat_waitq_enter);
	-
	-void
	-kstat_waitq_exit(kstat_io_t *kiop)
	-{
	- hrtime_t new, delta;
	- ulong_t wcnt;
	-
	- new = gethrtime();
	- delta = new - kiop->wlastupdate;
	- kiop->wlastupdate = new;
	- wcnt = kiop->wcnt--;
	- ASSERT((int)wcnt > 0);
	- kiop->wlentime += delta * wcnt;
	- kiop->wtime += delta;
	-}
	-EXPORT_SYMBOL(kstat_waitq_exit);
	-
	-void
	-kstat_runq_enter(kstat_io_t *kiop)
	-{
	- hrtime_t new, delta;
	- ulong_t rcnt;
	-
	- new = gethrtime();
	- delta = new - kiop->rlastupdate;
	- kiop->rlastupdate = new;
	- rcnt = kiop->rcnt++;
	- if (rcnt != 0) {
	- kiop->rlentime += delta * rcnt;
	- kiop->rtime += delta;
	- }
	-}
	-EXPORT_SYMBOL(kstat_runq_enter);
	-
	-void
	-kstat_runq_exit(kstat_io_t *kiop)
	-{
	- hrtime_t new, delta;
	- ulong_t rcnt;
	-
	- new = gethrtime();
	- delta = new - kiop->rlastupdate;
	- kiop->rlastupdate = new;
	- rcnt = kiop->rcnt--;
	- ASSERT((int)rcnt > 0);
	- kiop->rlentime += delta * rcnt;
	- kiop->rtime += delta;
	-}
	-EXPORT_SYMBOL(kstat_runq_exit);
	-
	static int
	kstat_seq_show_headers(struct seq_file *f)
	{
	kstat_t ksp = (kstat_t )f->private;
	int rc = 0;

	ASSERT(ksp->ks_magic == KS_MAGIC);

	seq_printf(f, "%d %d 0x%02x %d %d %lld %lld\n",
	ksp->ks_kid, ksp->ks_type, ksp->ks_flags,
	ksp->ks_ndata, (int)ksp->ks_data_size,
	ksp->ks_crtime, ksp->ks_snaptime);

	switch (ksp->ks_type) {
	case KSTAT_TYPE_RAW:
	restart:
	if (ksp->ks_raw_ops.headers) {
	rc = ksp->ks_raw_ops.headers(
	ksp->ks_raw_buf, ksp->ks_raw_bufsize);
	if (rc == ENOMEM && !kstat_resize_raw(ksp))
	goto restart;
	if (!rc)
	seq_puts(f, ksp->ks_raw_buf);
	} else {
	seq_printf(f, "raw data\n");
	}
	break;
	case KSTAT_TYPE_NAMED:
	seq_printf(f, "%-31s %-4s %s\n",
	"name", "type", "data");
	break;
	case KSTAT_TYPE_INTR:
	seq_printf(f, "%-8s %-8s %-8s %-8s %-8s\n",
	"hard", "soft", "watchdog",
	"spurious", "multsvc");
	break;
	case KSTAT_TYPE_IO:
	seq_printf(f,
	"%-8s %-8s %-8s %-8s %-8s %-8s "
	"%-8s %-8s %-8s %-8s %-8s %-8s\n",
	"nread", "nwritten", "reads", "writes",
	"wtime", "wlentime", "wupdate",
	"rtime", "rlentime", "rupdate",
	"wcnt", "rcnt");
	break;
	case KSTAT_TYPE_TIMER:
	seq_printf(f,
	"%-31s %-8s "
	"%-8s %-8s %-8s %-8s %-8s\n",
	"name", "events", "elapsed",
	"min", "max", "start", "stop");
	break;
	default:
	PANIC("Undefined kstat type %d\n", ksp->ks_type);
	}

	return (-rc);
	}

	static int
	kstat_seq_show_raw(struct seq_file f, unsigned char p, int l)
	{
	int i, j;

	for (i = 0; ; i++) {
	seq_printf(f, "%03x:", i);

	for (j = 0; j < 16; j++) {
	if (i * 16 + j >= l) {
	seq_printf(f, "\n");
	goto out;
	}

	seq_printf(f, " %02x", (unsigned char)p[i * 16 + j]);
	}
	seq_printf(f, "\n");
	}
	out:
	return (0);
	}

	static int
	kstat_seq_show_named(struct seq_file f, kstat_named_t knp)
	{
	seq_printf(f, "%-31s %-4d ", knp->name, knp->data_type);

	switch (knp->data_type) {
	case KSTAT_DATA_CHAR:
	knp->value.c[15] = '\0'; /* NULL terminate */
	seq_printf(f, "%-16s", knp->value.c);
	break;
	/*
	* NOTE - We need to be more careful able what tokens are
	* used for each arch, for now this is correct for x86_64.
	*/
	case KSTAT_DATA_INT32:
	seq_printf(f, "%d", knp->value.i32);
	break;
	case KSTAT_DATA_UINT32:
	seq_printf(f, "%u", knp->value.ui32);
	break;
	case KSTAT_DATA_INT64:
	seq_printf(f, "%lld", (signed long long)knp->value.i64);
	break;
	case KSTAT_DATA_UINT64:
	seq_printf(f, "%llu",
	(unsigned long long)knp->value.ui64);
	break;
	case KSTAT_DATA_LONG:
	seq_printf(f, "%ld", knp->value.l);
	break;
	case KSTAT_DATA_ULONG:
	seq_printf(f, "%lu", knp->value.ul);
	break;
	case KSTAT_DATA_STRING:
	KSTAT_NAMED_STR_PTR(knp)
	[KSTAT_NAMED_STR_BUFLEN(knp)-1] = '\0';
	seq_printf(f, "%s", KSTAT_NAMED_STR_PTR(knp));
	break;
	default:
	PANIC("Undefined kstat data type %d\n", knp->data_type);
	}

	seq_printf(f, "\n");

	return (0);
	}

	static int
	kstat_seq_show_intr(struct seq_file f, kstat_intr_t kip)
	{
	seq_printf(f, "%-8u %-8u %-8u %-8u %-8u\n",
	kip->intrs[KSTAT_INTR_HARD],
	kip->intrs[KSTAT_INTR_SOFT],
	kip->intrs[KSTAT_INTR_WATCHDOG],
	kip->intrs[KSTAT_INTR_SPURIOUS],
	kip->intrs[KSTAT_INTR_MULTSVC]);

	return (0);
	}

	static int
	kstat_seq_show_io(struct seq_file f, kstat_io_t kip)
	{
	/* though wlentime & friends are signed, they will never be negative */
	seq_printf(f,
	"%-8llu %-8llu %-8u %-8u %-8llu %-8llu "
	"%-8llu %-8llu %-8llu %-8llu %-8u %-8u\n",
	kip->nread, kip->nwritten,
	kip->reads, kip->writes,
	kip->wtime, kip->wlentime, kip->wlastupdate,
	kip->rtime, kip->rlentime, kip->rlastupdate,
	kip->wcnt, kip->rcnt);

	return (0);
	}

	static int
	kstat_seq_show_timer(struct seq_file f, kstat_timer_t ktp)
	{
	seq_printf(f,
	"%-31s %-8llu %-8llu %-8llu %-8llu %-8llu %-8llu\n",
	ktp->name, ktp->num_events, ktp->elapsed_time,
	ktp->min_time, ktp->max_time,
	ktp->start_time, ktp->stop_time);

	return (0);
	}

	static int
	kstat_seq_show(struct seq_file f, void p)
	{
	kstat_t ksp = (kstat_t )f->private;
	int rc = 0;

	ASSERT(ksp->ks_magic == KS_MAGIC);

	switch (ksp->ks_type) {
	case KSTAT_TYPE_RAW:
	restart:
	if (ksp->ks_raw_ops.data) {
	rc = ksp->ks_raw_ops.data(
	ksp->ks_raw_buf, ksp->ks_raw_bufsize, p);
	if (rc == ENOMEM && !kstat_resize_raw(ksp))
	goto restart;
	if (!rc)
	seq_puts(f, ksp->ks_raw_buf);
	} else {
	ASSERT(ksp->ks_ndata == 1);
	rc = kstat_seq_show_raw(f, ksp->ks_data,
	ksp->ks_data_size);
	}
	break;
	case KSTAT_TYPE_NAMED:
	rc = kstat_seq_show_named(f, (kstat_named_t *)p);
	break;
	case KSTAT_TYPE_INTR:
	rc = kstat_seq_show_intr(f, (kstat_intr_t *)p);
	break;
	case KSTAT_TYPE_IO:
	rc = kstat_seq_show_io(f, (kstat_io_t *)p);
	break;
	case KSTAT_TYPE_TIMER:
	rc = kstat_seq_show_timer(f, (kstat_timer_t *)p);
	break;
	default:
	PANIC("Undefined kstat type %d\n", ksp->ks_type);
	}

	return (-rc);
	}

	static int
	kstat_default_update(kstat_t *ksp, int rw)
	{
	ASSERT(ksp != NULL);

	if (rw == KSTAT_WRITE)
	return (EACCES);

	return (0);
	}

	static void *
	kstat_seq_data_addr(kstat_t *ksp, loff_t n)
	{
	void *rc = NULL;

	switch (ksp->ks_type) {
	case KSTAT_TYPE_RAW:
	if (ksp->ks_raw_ops.addr)
	rc = ksp->ks_raw_ops.addr(ksp, n);
	else
	rc = ksp->ks_data;
	break;
	case KSTAT_TYPE_NAMED:
	rc = ksp->ks_data + n * sizeof (kstat_named_t);
	break;
	case KSTAT_TYPE_INTR:
	rc = ksp->ks_data + n * sizeof (kstat_intr_t);
	break;
	case KSTAT_TYPE_IO:
	rc = ksp->ks_data + n * sizeof (kstat_io_t);
	break;
	case KSTAT_TYPE_TIMER:
	rc = ksp->ks_data + n * sizeof (kstat_timer_t);
	break;
	default:
	PANIC("Undefined kstat type %d\n", ksp->ks_type);
	}

	return (rc);
	}

	static void *
	kstat_seq_start(struct seq_file f, loff_t pos)
	{
	loff_t n = *pos;
	kstat_t ksp = (kstat_t )f->private;
	ASSERT(ksp->ks_magic == KS_MAGIC);

	mutex_enter(ksp->ks_lock);

	if (ksp->ks_type == KSTAT_TYPE_RAW) {
	ksp->ks_raw_bufsize = PAGE_SIZE;
	ksp->ks_raw_buf = vmem_alloc(ksp->ks_raw_bufsize, KM_SLEEP);
	}

	/* Dynamically update kstat, on error existing kstats are used */
	(void) ksp->ks_update(ksp, KSTAT_READ);

	ksp->ks_snaptime = gethrtime();

	if (!(ksp->ks_flags & KSTAT_FLAG_NO_HEADERS) && !n &&
	kstat_seq_show_headers(f))
	return (NULL);

	if (n >= ksp->ks_ndata)
	return (NULL);

	return (kstat_seq_data_addr(ksp, n));
	}

	static void *
	kstat_seq_next(struct seq_file f, void p, loff_t *pos)
	{
	kstat_t ksp = (kstat_t )f->private;
	ASSERT(ksp->ks_magic == KS_MAGIC);

	++*pos;
	if (*pos >= ksp->ks_ndata)
	return (NULL);

	return (kstat_seq_data_addr(ksp, *pos));
	}

	static void
	kstat_seq_stop(struct seq_file f, void v)
	{
	kstat_t ksp = (kstat_t )f->private;
	ASSERT(ksp->ks_magic == KS_MAGIC);

	if (ksp->ks_type == KSTAT_TYPE_RAW)
	vmem_free(ksp->ks_raw_buf, ksp->ks_raw_bufsize);

	mutex_exit(ksp->ks_lock);
	}

	static struct seq_operations kstat_seq_ops = {
	.show = kstat_seq_show,
	.start = kstat_seq_start,
	.next = kstat_seq_next,
	.stop = kstat_seq_stop,
	};

	static kstat_module_t *
	kstat_find_module(char *name)
	{
	kstat_module_t *module = NULL;

	list_for_each_entry(module, &kstat_module_list, ksm_module_list) {
	if (strncmp(name, module->ksm_name, KSTAT_STRLEN) == 0)
	return (module);
	}

	return (NULL);
	}

	static kstat_module_t *
	kstat_create_module(char *name)
	{
	kstat_module_t *module;
	struct proc_dir_entry *pde;

	pde = proc_mkdir(name, proc_spl_kstat);
	if (pde == NULL)
	return (NULL);

	module = kmem_alloc(sizeof (kstat_module_t), KM_SLEEP);
	module->ksm_proc = pde;
	strlcpy(module->ksm_name, name, KSTAT_STRLEN+1);
	INIT_LIST_HEAD(&module->ksm_kstat_list);
	list_add_tail(&module->ksm_module_list, &kstat_module_list);

	return (module);

	}

	static void
	kstat_delete_module(kstat_module_t *module)
	{
	ASSERT(list_empty(&module->ksm_kstat_list));
	remove_proc_entry(module->ksm_name, proc_spl_kstat);
	list_del(&module->ksm_module_list);
	kmem_free(module, sizeof (kstat_module_t));
	}

	static int
	proc_kstat_open(struct inode inode, struct file filp)
	{
	struct seq_file *f;
	int rc;

	rc = seq_open(filp, &kstat_seq_ops);
	if (rc)
	return (rc);

	f = filp->private_data;
	f->private = PDE_DATA(inode);

	return (0);
	}

	static ssize_t
	proc_kstat_write(struct file filp, const char __user buf, size_t len,
	loff_t *ppos)
	{
	struct seq_file *f = filp->private_data;
	kstat_t *ksp = f->private;
	int rc;

	ASSERT(ksp->ks_magic == KS_MAGIC);

	mutex_enter(ksp->ks_lock);
	rc = ksp->ks_update(ksp, KSTAT_WRITE);
	mutex_exit(ksp->ks_lock);

	if (rc)
	return (-rc);

	*ppos += len;
	return (len);
	}

	static const kstat_proc_op_t proc_kstat_operations = {
	#ifdef HAVE_PROC_OPS_STRUCT
	.proc_open = proc_kstat_open,
	.proc_write = proc_kstat_write,
	.proc_read = seq_read,
	.proc_lseek = seq_lseek,
	.proc_release = seq_release,
	#else
	.open = proc_kstat_open,
	.write = proc_kstat_write,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = seq_release,
	#endif
	};

	void
	__kstat_set_raw_ops(kstat_t *ksp,
	int (headers)(char buf, size_t size),
	int (data)(char buf, size_t size, void *data),
	void (addr)(kstat_t *ksp, loff_t index))
	{
	ksp->ks_raw_ops.headers = headers;
	ksp->ks_raw_ops.data = data;
	ksp->ks_raw_ops.addr = addr;
	}
	EXPORT_SYMBOL(__kstat_set_raw_ops);

	void
	kstat_proc_entry_init(kstat_proc_entry_t kpep, const char module,
	const char *name)
	{
	kpep->kpe_owner = NULL;
	kpep->kpe_proc = NULL;
	INIT_LIST_HEAD(&kpep->kpe_list);
	strncpy(kpep->kpe_module, module, KSTAT_STRLEN);
	strncpy(kpep->kpe_name, name, KSTAT_STRLEN);
	}
	EXPORT_SYMBOL(kstat_proc_entry_init);

	kstat_t *
	__kstat_create(const char ks_module, int ks_instance, const char ks_name,
	const char *ks_class, uchar_t ks_type, uint_t ks_ndata,
	uchar_t ks_flags)
	{
	kstat_t *ksp;

	ASSERT(ks_module);
	ASSERT(ks_instance == 0);
	ASSERT(ks_name);

	if ((ks_type == KSTAT_TYPE_INTR) \|\| (ks_type == KSTAT_TYPE_IO))
	ASSERT(ks_ndata == 1);

	ksp = kmem_zalloc(sizeof (*ksp), KM_SLEEP);
	if (ksp == NULL)
	return (ksp);

	mutex_enter(&kstat_module_lock);
	ksp->ks_kid = kstat_id;
	kstat_id++;
	mutex_exit(&kstat_module_lock);

	ksp->ks_magic = KS_MAGIC;
	mutex_init(&ksp->ks_private_lock, NULL, MUTEX_DEFAULT, NULL);
	ksp->ks_lock = &ksp->ks_private_lock;

	ksp->ks_crtime = gethrtime();
	ksp->ks_snaptime = ksp->ks_crtime;
	ksp->ks_instance = ks_instance;
	strncpy(ksp->ks_class, ks_class, KSTAT_STRLEN);
	ksp->ks_type = ks_type;
	ksp->ks_flags = ks_flags;
	ksp->ks_update = kstat_default_update;
	ksp->ks_private = NULL;
	ksp->ks_raw_ops.headers = NULL;
	ksp->ks_raw_ops.data = NULL;
	ksp->ks_raw_ops.addr = NULL;
	ksp->ks_raw_buf = NULL;
	ksp->ks_raw_bufsize = 0;
	kstat_proc_entry_init(&ksp->ks_proc, ks_module, ks_name);

	switch (ksp->ks_type) {
	case KSTAT_TYPE_RAW:
	ksp->ks_ndata = 1;
	ksp->ks_data_size = ks_ndata;
	break;
	case KSTAT_TYPE_NAMED:
	ksp->ks_ndata = ks_ndata;
	ksp->ks_data_size = ks_ndata * sizeof (kstat_named_t);
	break;
	case KSTAT_TYPE_INTR:
	ksp->ks_ndata = ks_ndata;
	ksp->ks_data_size = ks_ndata * sizeof (kstat_intr_t);
	break;
	case KSTAT_TYPE_IO:
	ksp->ks_ndata = ks_ndata;
	ksp->ks_data_size = ks_ndata * sizeof (kstat_io_t);
	break;
	case KSTAT_TYPE_TIMER:
	ksp->ks_ndata = ks_ndata;
	ksp->ks_data_size = ks_ndata * sizeof (kstat_timer_t);
	break;
	default:
	PANIC("Undefined kstat type %d\n", ksp->ks_type);
	}

	if (ksp->ks_flags & KSTAT_FLAG_VIRTUAL) {
	ksp->ks_data = NULL;
	} else {
	ksp->ks_data = kmem_zalloc(ksp->ks_data_size, KM_SLEEP);
	if (ksp->ks_data == NULL) {
	kmem_free(ksp, sizeof (*ksp));
	ksp = NULL;
	}
	}

	return (ksp);
	}
	EXPORT_SYMBOL(__kstat_create);

	static int
	kstat_detect_collision(kstat_proc_entry_t *kpep)
	{
	kstat_module_t *module;
	kstat_proc_entry_t *tmp = NULL;
	char *parent;
	char *cp;

	parent = kmem_asprintf("%s", kpep->kpe_module);

	if ((cp = strrchr(parent, '/')) == NULL) {
	kmem_strfree(parent);
	return (0);
	}

	cp[0] = '\0';
	if ((module = kstat_find_module(parent)) != NULL) {
	list_for_each_entry(tmp, &module->ksm_kstat_list, kpe_list) {
	if (strncmp(tmp->kpe_name, cp+1, KSTAT_STRLEN) == 0) {
	kmem_strfree(parent);
	return (EEXIST);
	}
	}
	}

	kmem_strfree(parent);
	return (0);
	}

	/*
	* Add a file to the proc filesystem under the kstat namespace (i.e.
	* /proc/spl/kstat/). The file need not necessarily be implemented as a
	* kstat.
	*/
	void
	kstat_proc_entry_install(kstat_proc_entry_t *kpep, mode_t mode,
	const kstat_proc_op_t proc_ops, void data)
	{
	kstat_module_t *module;
	kstat_proc_entry_t *tmp = NULL;

	ASSERT(kpep);

	mutex_enter(&kstat_module_lock);

	module = kstat_find_module(kpep->kpe_module);
	if (module == NULL) {
	if (kstat_detect_collision(kpep) != 0) {
	cmn_err(CE_WARN, "kstat_create('%s', '%s'): namespace" \
	" collision", kpep->kpe_module, kpep->kpe_name);
	goto out;
	}
	module = kstat_create_module(kpep->kpe_module);
	if (module == NULL)
	goto out;
	}

	/*
	* Only one entry by this name per-module, on failure the module
	* shouldn't be deleted because we know it has at least one entry.
	*/
	list_for_each_entry(tmp, &module->ksm_kstat_list, kpe_list) {
	if (strncmp(tmp->kpe_name, kpep->kpe_name, KSTAT_STRLEN) == 0)
	goto out;
	}

	list_add_tail(&kpep->kpe_list, &module->ksm_kstat_list);

	kpep->kpe_owner = module;
	kpep->kpe_proc = proc_create_data(kpep->kpe_name, mode,
	module->ksm_proc, proc_ops, data);
	if (kpep->kpe_proc == NULL) {
	list_del_init(&kpep->kpe_list);
	if (list_empty(&module->ksm_kstat_list))
	kstat_delete_module(module);
	}
	out:
	mutex_exit(&kstat_module_lock);

	}
	EXPORT_SYMBOL(kstat_proc_entry_install);

	void
	__kstat_install(kstat_t *ksp)
	{
	ASSERT(ksp);
	mode_t mode;
	/* Specify permission modes for different kstats */
	if (strncmp(ksp->ks_proc.kpe_name, "dbufs", KSTAT_STRLEN) == 0) {
	mode = 0600;
	} else {
	mode = 0644;
	}
	kstat_proc_entry_install(
	&ksp->ks_proc, mode, &proc_kstat_operations, ksp);
	}
	EXPORT_SYMBOL(__kstat_install);

	void
	kstat_proc_entry_delete(kstat_proc_entry_t *kpep)
	{
	kstat_module_t *module = kpep->kpe_owner;
	if (kpep->kpe_proc)
	remove_proc_entry(kpep->kpe_name, module->ksm_proc);

	mutex_enter(&kstat_module_lock);
	list_del_init(&kpep->kpe_list);

	/*
	* Remove top level module directory if it wasn't empty before, but now
	* is.
	*/
	if (kpep->kpe_proc && list_empty(&module->ksm_kstat_list))
	kstat_delete_module(module);
	mutex_exit(&kstat_module_lock);

	}
	EXPORT_SYMBOL(kstat_proc_entry_delete);

	void
	__kstat_delete(kstat_t *ksp)
	{
	kstat_proc_entry_delete(&ksp->ks_proc);

	if (!(ksp->ks_flags & KSTAT_FLAG_VIRTUAL))
	kmem_free(ksp->ks_data, ksp->ks_data_size);

	ksp->ks_lock = NULL;
	mutex_destroy(&ksp->ks_private_lock);
	kmem_free(ksp, sizeof (*ksp));
	}
	EXPORT_SYMBOL(__kstat_delete);

	int
	spl_kstat_init(void)
	{
	mutex_init(&kstat_module_lock, NULL, MUTEX_DEFAULT, NULL);
	INIT_LIST_HEAD(&kstat_module_list);
	kstat_id = 0;
	return (0);
	}

	void
	spl_kstat_fini(void)
	{
	ASSERT(list_empty(&kstat_module_list));
	mutex_destroy(&kstat_module_lock);
	}
	diff --git a/sys/contrib/openzfs/module/os/linux/zfs/zfs_znode.c b/sys/contrib/openzfs/module/os/linux/zfs/zfs_znode.c
	index 6015aea62dca..577927747aef 100644
	--- a/sys/contrib/openzfs/module/os/linux/zfs/zfs_znode.c
	+++ b/sys/contrib/openzfs/module/os/linux/zfs/zfs_znode.c
	@@ -1,2244 +1,2251 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	*/

	/* Portions Copyright 2007 Jeremy Teo */

	#ifdef _KERNEL
	#include <sys/types.h>
	#include <sys/param.h>
	#include <sys/time.h>
	#include <sys/sysmacros.h>
	#include <sys/mntent.h>
	#include <sys/u8_textprep.h>
	#include <sys/dsl_dataset.h>
	#include <sys/vfs.h>
	#include <sys/vnode.h>
	#include <sys/file.h>
	#include <sys/kmem.h>
	#include <sys/errno.h>
	#include <sys/atomic.h>
	#include <sys/zfs_dir.h>
	#include <sys/zfs_acl.h>
	#include <sys/zfs_ioctl.h>
	#include <sys/zfs_rlock.h>
	#include <sys/zfs_fuid.h>
	#include <sys/zfs_vnops.h>
	#include <sys/zfs_ctldir.h>
	#include <sys/dnode.h>
	#include <sys/fs/zfs.h>
	#include <sys/zpl.h>
	#endif /* _KERNEL */

	#include <sys/dmu.h>
	#include <sys/dmu_objset.h>
	#include <sys/dmu_tx.h>
	#include <sys/zfs_refcount.h>
	#include <sys/stat.h>
	#include <sys/zap.h>
	#include <sys/zfs_znode.h>
	#include <sys/sa.h>
	#include <sys/zfs_sa.h>
	#include <sys/zfs_stat.h>

	#include "zfs_prop.h"
	#include "zfs_comutil.h"

	/*
	* Functions needed for userland (ie: libzpool) are not put under
	* #ifdef_KERNEL; the rest of the functions have dependencies
	* (such as VFS logic) that will not compile easily in userland.
	*/
	#ifdef _KERNEL

	static kmem_cache_t *znode_cache = NULL;
	static kmem_cache_t *znode_hold_cache = NULL;
	unsigned int zfs_object_mutex_size = ZFS_OBJ_MTX_SZ;

	/*
	* This is used by the test suite so that it can delay znodes from being
	* freed in order to inspect the unlinked set.
	*/
	int zfs_unlink_suspend_progress = 0;

	/*
	* This callback is invoked when acquiring a RL_WRITER or RL_APPEND lock on
	* z_rangelock. It will modify the offset and length of the lock to reflect
	* znode-specific information, and convert RL_APPEND to RL_WRITER. This is
	* called with the rangelock_t's rl_lock held, which avoids races.
	*/
	static void
	zfs_rangelock_cb(zfs_locked_range_t new, void arg)
	{
	znode_t *zp = arg;

	/*
	* If in append mode, convert to writer and lock starting at the
	* current end of file.
	*/
	if (new->lr_type == RL_APPEND) {
	new->lr_offset = zp->z_size;
	new->lr_type = RL_WRITER;
	}

	/*
	* If we need to grow the block size then lock the whole file range.
	*/
	uint64_t end_size = MAX(zp->z_size, new->lr_offset + new->lr_length);
	if (end_size > zp->z_blksz && (!ISP2(zp->z_blksz) \|\|
	zp->z_blksz < ZTOZSB(zp)->z_max_blksz)) {
	new->lr_offset = 0;
	new->lr_length = UINT64_MAX;
	}
	}

	/ARGSUSED/
	static int
	zfs_znode_cache_constructor(void buf, void arg, int kmflags)
	{
	znode_t *zp = buf;

	inode_init_once(ZTOI(zp));
	list_link_init(&zp->z_link_node);

	mutex_init(&zp->z_lock, NULL, MUTEX_DEFAULT, NULL);
	rw_init(&zp->z_parent_lock, NULL, RW_DEFAULT, NULL);
	rw_init(&zp->z_name_lock, NULL, RW_NOLOCKDEP, NULL);
	mutex_init(&zp->z_acl_lock, NULL, MUTEX_DEFAULT, NULL);
	rw_init(&zp->z_xattr_lock, NULL, RW_DEFAULT, NULL);

	zfs_rangelock_init(&zp->z_rangelock, zfs_rangelock_cb, zp);

	zp->z_dirlocks = NULL;
	zp->z_acl_cached = NULL;
	zp->z_xattr_cached = NULL;
	zp->z_xattr_parent = 0;
	return (0);
	}

	/ARGSUSED/
	static void
	zfs_znode_cache_destructor(void buf, void arg)
	{
	znode_t *zp = buf;

	ASSERT(!list_link_active(&zp->z_link_node));
	mutex_destroy(&zp->z_lock);
	rw_destroy(&zp->z_parent_lock);
	rw_destroy(&zp->z_name_lock);
	mutex_destroy(&zp->z_acl_lock);
	rw_destroy(&zp->z_xattr_lock);
	zfs_rangelock_fini(&zp->z_rangelock);

	ASSERT3P(zp->z_dirlocks, ==, NULL);
	ASSERT3P(zp->z_acl_cached, ==, NULL);
	ASSERT3P(zp->z_xattr_cached, ==, NULL);
	}

	static int
	zfs_znode_hold_cache_constructor(void buf, void arg, int kmflags)
	{
	znode_hold_t *zh = buf;

	mutex_init(&zh->zh_lock, NULL, MUTEX_DEFAULT, NULL);
	zfs_refcount_create(&zh->zh_refcount);
	zh->zh_obj = ZFS_NO_OBJECT;

	return (0);
	}

	static void
	zfs_znode_hold_cache_destructor(void buf, void arg)
	{
	znode_hold_t *zh = buf;

	mutex_destroy(&zh->zh_lock);
	zfs_refcount_destroy(&zh->zh_refcount);
	}

	void
	zfs_znode_init(void)
	{
	/*
	* Initialize zcache. The KMC_SLAB hint is used in order that it be
	* backed by kmalloc() when on the Linux slab in order that any
	* wait_on_bit() operations on the related inode operate properly.
	*/
	ASSERT(znode_cache == NULL);
	znode_cache = kmem_cache_create("zfs_znode_cache",
	sizeof (znode_t), 0, zfs_znode_cache_constructor,
	zfs_znode_cache_destructor, NULL, NULL, NULL, KMC_SLAB);

	ASSERT(znode_hold_cache == NULL);
	znode_hold_cache = kmem_cache_create("zfs_znode_hold_cache",
	sizeof (znode_hold_t), 0, zfs_znode_hold_cache_constructor,
	zfs_znode_hold_cache_destructor, NULL, NULL, NULL, 0);
	}

	void
	zfs_znode_fini(void)
	{
	/*
	* Cleanup zcache
	*/
	if (znode_cache)
	kmem_cache_destroy(znode_cache);
	znode_cache = NULL;

	if (znode_hold_cache)
	kmem_cache_destroy(znode_hold_cache);
	znode_hold_cache = NULL;
	}

	/*
	* The zfs_znode_hold_enter() / zfs_znode_hold_exit() functions are used to
	* serialize access to a znode and its SA buffer while the object is being
	* created or destroyed. This kind of locking would normally reside in the
	* znode itself but in this case that's impossible because the znode and SA
	* buffer may not yet exist. Therefore the locking is handled externally
	* with an array of mutexes and AVLs trees which contain per-object locks.
	*
	* In zfs_znode_hold_enter() a per-object lock is created as needed, inserted
	* in to the correct AVL tree and finally the per-object lock is held. In
	* zfs_znode_hold_exit() the process is reversed. The per-object lock is
	* released, removed from the AVL tree and destroyed if there are no waiters.
	*
	* This scheme has two important properties:
	*
	* 1) No memory allocations are performed while holding one of the z_hold_locks.
	* This ensures evict(), which can be called from direct memory reclaim, will
	* never block waiting on a z_hold_locks which just happens to have hashed
	* to the same index.
	*
	* 2) All locks used to serialize access to an object are per-object and never
	* shared. This minimizes lock contention without creating a large number
	* of dedicated locks.
	*
	* On the downside it does require znode_lock_t structures to be frequently
	* allocated and freed. However, because these are backed by a kmem cache
	* and very short lived this cost is minimal.
	*/
	int
	zfs_znode_hold_compare(const void a, const void b)
	{
	const znode_hold_t zh_a = (const znode_hold_t )a;
	const znode_hold_t zh_b = (const znode_hold_t )b;

	return (TREE_CMP(zh_a->zh_obj, zh_b->zh_obj));
	}

	static boolean_t __maybe_unused
	zfs_znode_held(zfsvfs_t *zfsvfs, uint64_t obj)
	{
	znode_hold_t *zh, search;
	int i = ZFS_OBJ_HASH(zfsvfs, obj);
	boolean_t held;

	search.zh_obj = obj;

	mutex_enter(&zfsvfs->z_hold_locks[i]);
	zh = avl_find(&zfsvfs->z_hold_trees[i], &search, NULL);
	held = (zh && MUTEX_HELD(&zh->zh_lock)) ? B_TRUE : B_FALSE;
	mutex_exit(&zfsvfs->z_hold_locks[i]);

	return (held);
	}

	static znode_hold_t *
	zfs_znode_hold_enter(zfsvfs_t *zfsvfs, uint64_t obj)
	{
	znode_hold_t zh, zh_new, search;
	int i = ZFS_OBJ_HASH(zfsvfs, obj);
	boolean_t found = B_FALSE;

	zh_new = kmem_cache_alloc(znode_hold_cache, KM_SLEEP);
	zh_new->zh_obj = obj;
	search.zh_obj = obj;

	mutex_enter(&zfsvfs->z_hold_locks[i]);
	zh = avl_find(&zfsvfs->z_hold_trees[i], &search, NULL);
	if (likely(zh == NULL)) {
	zh = zh_new;
	avl_add(&zfsvfs->z_hold_trees[i], zh);
	} else {
	ASSERT3U(zh->zh_obj, ==, obj);
	found = B_TRUE;
	}
	zfs_refcount_add(&zh->zh_refcount, NULL);
	mutex_exit(&zfsvfs->z_hold_locks[i]);

	if (found == B_TRUE)
	kmem_cache_free(znode_hold_cache, zh_new);

	ASSERT(MUTEX_NOT_HELD(&zh->zh_lock));
	ASSERT3S(zfs_refcount_count(&zh->zh_refcount), >, 0);
	mutex_enter(&zh->zh_lock);

	return (zh);
	}

	static void
	zfs_znode_hold_exit(zfsvfs_t zfsvfs, znode_hold_t zh)
	{
	int i = ZFS_OBJ_HASH(zfsvfs, zh->zh_obj);
	boolean_t remove = B_FALSE;

	ASSERT(zfs_znode_held(zfsvfs, zh->zh_obj));
	ASSERT3S(zfs_refcount_count(&zh->zh_refcount), >, 0);
	mutex_exit(&zh->zh_lock);

	mutex_enter(&zfsvfs->z_hold_locks[i]);
	if (zfs_refcount_remove(&zh->zh_refcount, NULL) == 0) {
	avl_remove(&zfsvfs->z_hold_trees[i], zh);
	remove = B_TRUE;
	}
	mutex_exit(&zfsvfs->z_hold_locks[i]);

	if (remove == B_TRUE)
	kmem_cache_free(znode_hold_cache, zh);
	}

	dev_t
	zfs_cmpldev(uint64_t dev)
	{
	return (dev);
	}

	static void
	zfs_znode_sa_init(zfsvfs_t zfsvfs, znode_t zp,
	dmu_buf_t db, dmu_object_type_t obj_type, sa_handle_t sa_hdl)
	{
	ASSERT(zfs_znode_held(zfsvfs, zp->z_id));

	mutex_enter(&zp->z_lock);

	ASSERT(zp->z_sa_hdl == NULL);
	ASSERT(zp->z_acl_cached == NULL);
	if (sa_hdl == NULL) {
	VERIFY(0 == sa_handle_get_from_db(zfsvfs->z_os, db, zp,
	SA_HDL_SHARED, &zp->z_sa_hdl));
	} else {
	zp->z_sa_hdl = sa_hdl;
	sa_set_userp(sa_hdl, zp);
	}

	zp->z_is_sa = (obj_type == DMU_OT_SA) ? B_TRUE : B_FALSE;

	mutex_exit(&zp->z_lock);
	}

	void
	zfs_znode_dmu_fini(znode_t *zp)
	{
	ASSERT(zfs_znode_held(ZTOZSB(zp), zp->z_id) \|\| zp->z_unlinked \|\|
	RW_WRITE_HELD(&ZTOZSB(zp)->z_teardown_inactive_lock));

	sa_handle_destroy(zp->z_sa_hdl);
	zp->z_sa_hdl = NULL;
	}

	/*
	* Called by new_inode() to allocate a new inode.
	*/
	int
	zfs_inode_alloc(struct super_block sb, struct inode *ip)
	{
	znode_t *zp;

	zp = kmem_cache_alloc(znode_cache, KM_SLEEP);
	*ip = ZTOI(zp);

	return (0);
	}

	/*
	* Called in multiple places when an inode should be destroyed.
	*/
	void
	zfs_inode_destroy(struct inode *ip)
	{
	znode_t *zp = ITOZ(ip);
	zfsvfs_t *zfsvfs = ZTOZSB(zp);

	mutex_enter(&zfsvfs->z_znodes_lock);
	if (list_link_active(&zp->z_link_node)) {
	list_remove(&zfsvfs->z_all_znodes, zp);
	zfsvfs->z_nr_znodes--;
	}
	mutex_exit(&zfsvfs->z_znodes_lock);

	if (zp->z_acl_cached) {
	zfs_acl_free(zp->z_acl_cached);
	zp->z_acl_cached = NULL;
	}

	if (zp->z_xattr_cached) {
	nvlist_free(zp->z_xattr_cached);
	zp->z_xattr_cached = NULL;
	}

	kmem_cache_free(znode_cache, zp);
	}

	static void
	zfs_inode_set_ops(zfsvfs_t zfsvfs, struct inode ip)
	{
	uint64_t rdev = 0;

	switch (ip->i_mode & S_IFMT) {
	case S_IFREG:
	ip->i_op = &zpl_inode_operations;
	ip->i_fop = &zpl_file_operations;
	ip->i_mapping->a_ops = &zpl_address_space_operations;
	break;

	case S_IFDIR:
	ip->i_op = &zpl_dir_inode_operations;
	ip->i_fop = &zpl_dir_file_operations;
	ITOZ(ip)->z_zn_prefetch = B_TRUE;
	break;

	case S_IFLNK:
	ip->i_op = &zpl_symlink_inode_operations;
	break;

	/*
	* rdev is only stored in a SA only for device files.
	*/
	case S_IFCHR:
	case S_IFBLK:
	(void) sa_lookup(ITOZ(ip)->z_sa_hdl, SA_ZPL_RDEV(zfsvfs), &rdev,
	sizeof (rdev));
	/FALLTHROUGH/
	case S_IFIFO:
	case S_IFSOCK:
	init_special_inode(ip, ip->i_mode, rdev);
	ip->i_op = &zpl_special_inode_operations;
	break;

	default:
	zfs_panic_recover("inode %llu has invalid mode: 0x%x\n",
	(u_longlong_t)ip->i_ino, ip->i_mode);

	/* Assume the inode is a file and attempt to continue */
	ip->i_mode = S_IFREG \| 0644;
	ip->i_op = &zpl_inode_operations;
	ip->i_fop = &zpl_file_operations;
	ip->i_mapping->a_ops = &zpl_address_space_operations;
	break;
	}
	}

	static void
	zfs_set_inode_flags(znode_t zp, struct inode ip)
	{
	/*
	* Linux and Solaris have different sets of file attributes, so we
	* restrict this conversion to the intersection of the two.
	*/
	#ifdef HAVE_INODE_SET_FLAGS
	unsigned int flags = 0;
	if (zp->z_pflags & ZFS_IMMUTABLE)
	flags \|= S_IMMUTABLE;
	if (zp->z_pflags & ZFS_APPENDONLY)
	flags \|= S_APPEND;

	inode_set_flags(ip, flags, S_IMMUTABLE\|S_APPEND);
	#else
	if (zp->z_pflags & ZFS_IMMUTABLE)
	ip->i_flags \|= S_IMMUTABLE;
	else
	ip->i_flags &= ~S_IMMUTABLE;

	if (zp->z_pflags & ZFS_APPENDONLY)
	ip->i_flags \|= S_APPEND;
	else
	ip->i_flags &= ~S_APPEND;
	#endif
	}

	/*
	* Update the embedded inode given the znode.
	*/
	void
	zfs_znode_update_vfs(znode_t *zp)
	{
	zfsvfs_t *zfsvfs;
	struct inode *ip;
	uint32_t blksize;
	u_longlong_t i_blocks;

	ASSERT(zp != NULL);
	zfsvfs = ZTOZSB(zp);
	ip = ZTOI(zp);

	/* Skip .zfs control nodes which do not exist on disk. */
	if (zfsctl_is_node(ip))
	return;

	dmu_object_size_from_db(sa_get_db(zp->z_sa_hdl), &blksize, &i_blocks);

	spin_lock(&ip->i_lock);
	ip->i_mode = zp->z_mode;
	ip->i_blocks = i_blocks;
	i_size_write(ip, zp->z_size);
	spin_unlock(&ip->i_lock);
	}


	/*
	* Construct a znode+inode and initialize.
	*
	* This does not do a call to dmu_set_user() that is
	* up to the caller to do, in case you don't want to
	* return the znode
	*/
	static znode_t *
	zfs_znode_alloc(zfsvfs_t zfsvfs, dmu_buf_t db, int blksz,
	dmu_object_type_t obj_type, sa_handle_t *hdl)
	{
	znode_t *zp;
	struct inode *ip;
	uint64_t mode;
	uint64_t parent;
	uint64_t tmp_gen;
	uint64_t links;
	uint64_t z_uid, z_gid;
	uint64_t atime[2], mtime[2], ctime[2];
	uint64_t projid = ZFS_DEFAULT_PROJID;
	sa_bulk_attr_t bulk[11];
	int count = 0;

	ASSERT(zfsvfs != NULL);

	ip = new_inode(zfsvfs->z_sb);
	if (ip == NULL)
	return (NULL);

	zp = ITOZ(ip);
	ASSERT(zp->z_dirlocks == NULL);
	ASSERT3P(zp->z_acl_cached, ==, NULL);
	ASSERT3P(zp->z_xattr_cached, ==, NULL);
	zp->z_unlinked = B_FALSE;
	zp->z_atime_dirty = B_FALSE;
	zp->z_is_mapped = B_FALSE;
	zp->z_is_ctldir = B_FALSE;
	zp->z_is_stale = B_FALSE;
	zp->z_suspended = B_FALSE;
	zp->z_sa_hdl = NULL;
	zp->z_mapcnt = 0;
	zp->z_id = db->db_object;
	zp->z_blksz = blksz;
	zp->z_seq = 0x7A4653;
	zp->z_sync_cnt = 0;

	zfs_znode_sa_init(zfsvfs, zp, db, obj_type, hdl);

	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MODE(zfsvfs), NULL, &mode, 8);
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GEN(zfsvfs), NULL, &tmp_gen, 8);
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs), NULL,
	&zp->z_size, 8);
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), NULL, &links, 8);
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL,
	&zp->z_pflags, 8);
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_PARENT(zfsvfs), NULL,
	&parent, 8);
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_UID(zfsvfs), NULL, &z_uid, 8);
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GID(zfsvfs), NULL, &z_gid, 8);
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_ATIME(zfsvfs), NULL, &atime, 16);
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL, &mtime, 16);
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, &ctime, 16);

	if (sa_bulk_lookup(zp->z_sa_hdl, bulk, count) != 0 \|\| tmp_gen == 0 \|\|
	(dmu_objset_projectquota_enabled(zfsvfs->z_os) &&
	(zp->z_pflags & ZFS_PROJID) &&
	sa_lookup(zp->z_sa_hdl, SA_ZPL_PROJID(zfsvfs), &projid, 8) != 0)) {
	if (hdl == NULL)
	sa_handle_destroy(zp->z_sa_hdl);
	zp->z_sa_hdl = NULL;
	goto error;
	}

	zp->z_projid = projid;
	zp->z_mode = ip->i_mode = mode;
	ip->i_generation = (uint32_t)tmp_gen;
	ip->i_blkbits = SPA_MINBLOCKSHIFT;
	set_nlink(ip, (uint32_t)links);
	zfs_uid_write(ip, z_uid);
	zfs_gid_write(ip, z_gid);
	zfs_set_inode_flags(zp, ip);

	/* Cache the xattr parent id */
	if (zp->z_pflags & ZFS_XATTR)
	zp->z_xattr_parent = parent;

	ZFS_TIME_DECODE(&ip->i_atime, atime);
	ZFS_TIME_DECODE(&ip->i_mtime, mtime);
	ZFS_TIME_DECODE(&ip->i_ctime, ctime);

	ip->i_ino = zp->z_id;
	zfs_znode_update_vfs(zp);
	zfs_inode_set_ops(zfsvfs, ip);

	/*
	* The only way insert_inode_locked() can fail is if the ip->i_ino
	* number is already hashed for this super block. This can never
	* happen because the inode numbers map 1:1 with the object numbers.
	*
	- * The one exception is rolling back a mounted file system, but in
	- * this case all the active inode are unhashed during the rollback.
	+ * Exceptions include rolling back a mounted file system, either
	+ * from the zfs rollback or zfs recv command.
	+ *
	+ * Active inodes are unhashed during the rollback, but since zrele
	+ * can happen asynchronously, we can't guarantee they've been
	+ * unhashed. This can cause hash collisions in unlinked drain
	+ * processing so do not hash unlinked znodes.
	*/
	- VERIFY3S(insert_inode_locked(ip), ==, 0);
	+ if (links > 0)
	+ VERIFY3S(insert_inode_locked(ip), ==, 0);

	mutex_enter(&zfsvfs->z_znodes_lock);
	list_insert_tail(&zfsvfs->z_all_znodes, zp);
	zfsvfs->z_nr_znodes++;
	mutex_exit(&zfsvfs->z_znodes_lock);

	- unlock_new_inode(ip);
	+ if (links > 0)
	+ unlock_new_inode(ip);
	return (zp);

	error:
	iput(ip);
	return (NULL);
	}

	/*
	* Safely mark an inode dirty. Inodes which are part of a read-only
	* file system or snapshot may not be dirtied.
	*/
	void
	zfs_mark_inode_dirty(struct inode *ip)
	{
	zfsvfs_t *zfsvfs = ITOZSB(ip);

	if (zfs_is_readonly(zfsvfs) \|\| dmu_objset_is_snapshot(zfsvfs->z_os))
	return;

	mark_inode_dirty(ip);
	}

	static uint64_t empty_xattr;
	static uint64_t pad[4];
	static zfs_acl_phys_t acl_phys;
	/*
	* Create a new DMU object to hold a zfs znode.
	*
	* IN: dzp - parent directory for new znode
	* vap - file attributes for new znode
	* tx - dmu transaction id for zap operations
	* cr - credentials of caller
	* flag - flags:
	* IS_ROOT_NODE - new object will be root
	* IS_TMPFILE - new object is of O_TMPFILE
	* IS_XATTR - new object is an attribute
	* acl_ids - ACL related attributes
	*
	* OUT: zpp - allocated znode (set to dzp if IS_ROOT_NODE)
	*
	*/
	void
	zfs_mknode(znode_t dzp, vattr_t vap, dmu_tx_t tx, cred_t cr,
	uint_t flag, znode_t *zpp, zfs_acl_ids_t acl_ids)
	{
	uint64_t crtime[2], atime[2], mtime[2], ctime[2];
	uint64_t mode, size, links, parent, pflags;
	uint64_t projid = ZFS_DEFAULT_PROJID;
	uint64_t rdev = 0;
	zfsvfs_t *zfsvfs = ZTOZSB(dzp);
	dmu_buf_t *db;
	inode_timespec_t now;
	uint64_t gen, obj;
	int bonuslen;
	int dnodesize;
	sa_handle_t *sa_hdl;
	dmu_object_type_t obj_type;
	sa_bulk_attr_t *sa_attrs;
	int cnt = 0;
	zfs_acl_locator_cb_t locate = { 0 };
	znode_hold_t *zh;

	if (zfsvfs->z_replay) {
	obj = vap->va_nodeid;
	now = vap->va_ctime; /* see zfs_replay_create() */
	gen = vap->va_nblocks; /* ditto */
	dnodesize = vap->va_fsid; /* ditto */
	} else {
	obj = 0;
	gethrestime(&now);
	gen = dmu_tx_get_txg(tx);
	dnodesize = dmu_objset_dnodesize(zfsvfs->z_os);
	}

	if (dnodesize == 0)
	dnodesize = DNODE_MIN_SIZE;

	obj_type = zfsvfs->z_use_sa ? DMU_OT_SA : DMU_OT_ZNODE;

	bonuslen = (obj_type == DMU_OT_SA) ?
	DN_BONUS_SIZE(dnodesize) : ZFS_OLD_ZNODE_PHYS_SIZE;

	/*
	* Create a new DMU object.
	*/
	/*
	* There's currently no mechanism for pre-reading the blocks that will
	* be needed to allocate a new object, so we accept the small chance
	* that there will be an i/o error and we will fail one of the
	* assertions below.
	*/
	if (S_ISDIR(vap->va_mode)) {
	if (zfsvfs->z_replay) {
	VERIFY0(zap_create_claim_norm_dnsize(zfsvfs->z_os, obj,
	zfsvfs->z_norm, DMU_OT_DIRECTORY_CONTENTS,
	obj_type, bonuslen, dnodesize, tx));
	} else {
	obj = zap_create_norm_dnsize(zfsvfs->z_os,
	zfsvfs->z_norm, DMU_OT_DIRECTORY_CONTENTS,
	obj_type, bonuslen, dnodesize, tx);
	}
	} else {
	if (zfsvfs->z_replay) {
	VERIFY0(dmu_object_claim_dnsize(zfsvfs->z_os, obj,
	DMU_OT_PLAIN_FILE_CONTENTS, 0,
	obj_type, bonuslen, dnodesize, tx));
	} else {
	obj = dmu_object_alloc_dnsize(zfsvfs->z_os,
	DMU_OT_PLAIN_FILE_CONTENTS, 0,
	obj_type, bonuslen, dnodesize, tx);
	}
	}

	zh = zfs_znode_hold_enter(zfsvfs, obj);
	VERIFY0(sa_buf_hold(zfsvfs->z_os, obj, NULL, &db));

	/*
	* If this is the root, fix up the half-initialized parent pointer
	* to reference the just-allocated physical data area.
	*/
	if (flag & IS_ROOT_NODE) {
	dzp->z_id = obj;
	}

	/*
	* If parent is an xattr, so am I.
	*/
	if (dzp->z_pflags & ZFS_XATTR) {
	flag \|= IS_XATTR;
	}

	if (zfsvfs->z_use_fuids)
	pflags = ZFS_ARCHIVE \| ZFS_AV_MODIFIED;
	else
	pflags = 0;

	if (S_ISDIR(vap->va_mode)) {
	size = 2; /* contents ("." and "..") */
	links = 2;
	} else {
	size = 0;
	links = (flag & IS_TMPFILE) ? 0 : 1;
	}

	if (S_ISBLK(vap->va_mode) \|\| S_ISCHR(vap->va_mode))
	rdev = vap->va_rdev;

	parent = dzp->z_id;
	mode = acl_ids->z_mode;
	if (flag & IS_XATTR)
	pflags \|= ZFS_XATTR;

	if (S_ISREG(vap->va_mode) \|\| S_ISDIR(vap->va_mode)) {
	/*
	* With ZFS_PROJID flag, we can easily know whether there is
	* project ID stored on disk or not. See zfs_space_delta_cb().
	*/
	if (obj_type != DMU_OT_ZNODE &&
	dmu_objset_projectquota_enabled(zfsvfs->z_os))
	pflags \|= ZFS_PROJID;

	/*
	* Inherit project ID from parent if required.
	*/
	projid = zfs_inherit_projid(dzp);
	if (dzp->z_pflags & ZFS_PROJINHERIT)
	pflags \|= ZFS_PROJINHERIT;
	}

	/*
	* No execs denied will be determined when zfs_mode_compute() is called.
	*/
	pflags \|= acl_ids->z_aclp->z_hints &
	(ZFS_ACL_TRIVIAL\|ZFS_INHERIT_ACE\|ZFS_ACL_AUTO_INHERIT\|
	ZFS_ACL_DEFAULTED\|ZFS_ACL_PROTECTED);

	ZFS_TIME_ENCODE(&now, crtime);
	ZFS_TIME_ENCODE(&now, ctime);

	if (vap->va_mask & ATTR_ATIME) {
	ZFS_TIME_ENCODE(&vap->va_atime, atime);
	} else {
	ZFS_TIME_ENCODE(&now, atime);
	}

	if (vap->va_mask & ATTR_MTIME) {
	ZFS_TIME_ENCODE(&vap->va_mtime, mtime);
	} else {
	ZFS_TIME_ENCODE(&now, mtime);
	}

	/* Now add in all of the "SA" attributes */
	VERIFY(0 == sa_handle_get_from_db(zfsvfs->z_os, db, NULL, SA_HDL_SHARED,
	&sa_hdl));

	/*
	* Setup the array of attributes to be replaced/set on the new file
	*
	* order for DMU_OT_ZNODE is critical since it needs to be constructed
	* in the old znode_phys_t format. Don't change this ordering
	*/
	sa_attrs = kmem_alloc(sizeof (sa_bulk_attr_t) * ZPL_END, KM_SLEEP);

	if (obj_type == DMU_OT_ZNODE) {
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_ATIME(zfsvfs),
	NULL, &atime, 16);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_MTIME(zfsvfs),
	NULL, &mtime, 16);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_CTIME(zfsvfs),
	NULL, &ctime, 16);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_CRTIME(zfsvfs),
	NULL, &crtime, 16);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GEN(zfsvfs),
	NULL, &gen, 8);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_MODE(zfsvfs),
	NULL, &mode, 8);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_SIZE(zfsvfs),
	NULL, &size, 8);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_PARENT(zfsvfs),
	NULL, &parent, 8);
	} else {
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_MODE(zfsvfs),
	NULL, &mode, 8);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_SIZE(zfsvfs),
	NULL, &size, 8);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GEN(zfsvfs),
	NULL, &gen, 8);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_UID(zfsvfs),
	NULL, &acl_ids->z_fuid, 8);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GID(zfsvfs),
	NULL, &acl_ids->z_fgid, 8);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_PARENT(zfsvfs),
	NULL, &parent, 8);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_FLAGS(zfsvfs),
	NULL, &pflags, 8);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_ATIME(zfsvfs),
	NULL, &atime, 16);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_MTIME(zfsvfs),
	NULL, &mtime, 16);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_CTIME(zfsvfs),
	NULL, &ctime, 16);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_CRTIME(zfsvfs),
	NULL, &crtime, 16);
	}

	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_LINKS(zfsvfs), NULL, &links, 8);

	if (obj_type == DMU_OT_ZNODE) {
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_XATTR(zfsvfs), NULL,
	&empty_xattr, 8);
	} else if (dmu_objset_projectquota_enabled(zfsvfs->z_os) &&
	pflags & ZFS_PROJID) {
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_PROJID(zfsvfs),
	NULL, &projid, 8);
	}
	if (obj_type == DMU_OT_ZNODE \|\|
	(S_ISBLK(vap->va_mode) \|\| S_ISCHR(vap->va_mode))) {
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_RDEV(zfsvfs),
	NULL, &rdev, 8);
	}
	if (obj_type == DMU_OT_ZNODE) {
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_FLAGS(zfsvfs),
	NULL, &pflags, 8);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_UID(zfsvfs), NULL,
	&acl_ids->z_fuid, 8);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GID(zfsvfs), NULL,
	&acl_ids->z_fgid, 8);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_PAD(zfsvfs), NULL, pad,
	sizeof (uint64_t) * 4);
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_ZNODE_ACL(zfsvfs), NULL,
	&acl_phys, sizeof (zfs_acl_phys_t));
	} else if (acl_ids->z_aclp->z_version >= ZFS_ACL_VERSION_FUID) {
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_DACL_COUNT(zfsvfs), NULL,
	&acl_ids->z_aclp->z_acl_count, 8);
	locate.cb_aclp = acl_ids->z_aclp;
	SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_DACL_ACES(zfsvfs),
	zfs_acl_data_locator, &locate,
	acl_ids->z_aclp->z_acl_bytes);
	mode = zfs_mode_compute(mode, acl_ids->z_aclp, &pflags,
	acl_ids->z_fuid, acl_ids->z_fgid);
	}

	VERIFY(sa_replace_all_by_template(sa_hdl, sa_attrs, cnt, tx) == 0);

	if (!(flag & IS_ROOT_NODE)) {
	/*
	* The call to zfs_znode_alloc() may fail if memory is low
	* via the call path: alloc_inode() -> inode_init_always() ->
	* security_inode_alloc() -> inode_alloc_security(). Since
	* the existing code is written such that zfs_mknode() can
	* not fail retry until sufficient memory has been reclaimed.
	*/
	do {
	*zpp = zfs_znode_alloc(zfsvfs, db, 0, obj_type, sa_hdl);
	} while (*zpp == NULL);

	VERIFY(*zpp != NULL);
	VERIFY(dzp != NULL);
	} else {
	/*
	* If we are creating the root node, the "parent" we
	* passed in is the znode for the root.
	*/
	*zpp = dzp;

	(*zpp)->z_sa_hdl = sa_hdl;
	}

	(*zpp)->z_pflags = pflags;
	(zpp)->z_mode = ZTOI(zpp)->i_mode = mode;
	(*zpp)->z_dnodesize = dnodesize;
	(*zpp)->z_projid = projid;

	if (obj_type == DMU_OT_ZNODE \|\|
	acl_ids->z_aclp->z_version < ZFS_ACL_VERSION_FUID) {
	VERIFY0(zfs_aclset_common(*zpp, acl_ids->z_aclp, cr, tx));
	}
	kmem_free(sa_attrs, sizeof (sa_bulk_attr_t) * ZPL_END);
	zfs_znode_hold_exit(zfsvfs, zh);
	}

	/*
	* Update in-core attributes. It is assumed the caller will be doing an
	* sa_bulk_update to push the changes out.
	*/
	void
	zfs_xvattr_set(znode_t zp, xvattr_t xvap, dmu_tx_t *tx)
	{
	xoptattr_t *xoap;
	boolean_t update_inode = B_FALSE;

	xoap = xva_getxoptattr(xvap);
	ASSERT(xoap);

	if (XVA_ISSET_REQ(xvap, XAT_CREATETIME)) {
	uint64_t times[2];
	ZFS_TIME_ENCODE(&xoap->xoa_createtime, times);
	(void) sa_update(zp->z_sa_hdl, SA_ZPL_CRTIME(ZTOZSB(zp)),
	&times, sizeof (times), tx);
	XVA_SET_RTN(xvap, XAT_CREATETIME);
	}
	if (XVA_ISSET_REQ(xvap, XAT_READONLY)) {
	ZFS_ATTR_SET(zp, ZFS_READONLY, xoap->xoa_readonly,
	zp->z_pflags, tx);
	XVA_SET_RTN(xvap, XAT_READONLY);
	}
	if (XVA_ISSET_REQ(xvap, XAT_HIDDEN)) {
	ZFS_ATTR_SET(zp, ZFS_HIDDEN, xoap->xoa_hidden,
	zp->z_pflags, tx);
	XVA_SET_RTN(xvap, XAT_HIDDEN);
	}
	if (XVA_ISSET_REQ(xvap, XAT_SYSTEM)) {
	ZFS_ATTR_SET(zp, ZFS_SYSTEM, xoap->xoa_system,
	zp->z_pflags, tx);
	XVA_SET_RTN(xvap, XAT_SYSTEM);
	}
	if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE)) {
	ZFS_ATTR_SET(zp, ZFS_ARCHIVE, xoap->xoa_archive,
	zp->z_pflags, tx);
	XVA_SET_RTN(xvap, XAT_ARCHIVE);
	}
	if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) {
	ZFS_ATTR_SET(zp, ZFS_IMMUTABLE, xoap->xoa_immutable,
	zp->z_pflags, tx);
	XVA_SET_RTN(xvap, XAT_IMMUTABLE);

	update_inode = B_TRUE;
	}
	if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) {
	ZFS_ATTR_SET(zp, ZFS_NOUNLINK, xoap->xoa_nounlink,
	zp->z_pflags, tx);
	XVA_SET_RTN(xvap, XAT_NOUNLINK);
	}
	if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) {
	ZFS_ATTR_SET(zp, ZFS_APPENDONLY, xoap->xoa_appendonly,
	zp->z_pflags, tx);
	XVA_SET_RTN(xvap, XAT_APPENDONLY);

	update_inode = B_TRUE;
	}
	if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) {
	ZFS_ATTR_SET(zp, ZFS_NODUMP, xoap->xoa_nodump,
	zp->z_pflags, tx);
	XVA_SET_RTN(xvap, XAT_NODUMP);
	}
	if (XVA_ISSET_REQ(xvap, XAT_OPAQUE)) {
	ZFS_ATTR_SET(zp, ZFS_OPAQUE, xoap->xoa_opaque,
	zp->z_pflags, tx);
	XVA_SET_RTN(xvap, XAT_OPAQUE);
	}
	if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) {
	ZFS_ATTR_SET(zp, ZFS_AV_QUARANTINED,
	xoap->xoa_av_quarantined, zp->z_pflags, tx);
	XVA_SET_RTN(xvap, XAT_AV_QUARANTINED);
	}
	if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) {
	ZFS_ATTR_SET(zp, ZFS_AV_MODIFIED, xoap->xoa_av_modified,
	zp->z_pflags, tx);
	XVA_SET_RTN(xvap, XAT_AV_MODIFIED);
	}
	if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) {
	zfs_sa_set_scanstamp(zp, xvap, tx);
	XVA_SET_RTN(xvap, XAT_AV_SCANSTAMP);
	}
	if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) {
	ZFS_ATTR_SET(zp, ZFS_REPARSE, xoap->xoa_reparse,
	zp->z_pflags, tx);
	XVA_SET_RTN(xvap, XAT_REPARSE);
	}
	if (XVA_ISSET_REQ(xvap, XAT_OFFLINE)) {
	ZFS_ATTR_SET(zp, ZFS_OFFLINE, xoap->xoa_offline,
	zp->z_pflags, tx);
	XVA_SET_RTN(xvap, XAT_OFFLINE);
	}
	if (XVA_ISSET_REQ(xvap, XAT_SPARSE)) {
	ZFS_ATTR_SET(zp, ZFS_SPARSE, xoap->xoa_sparse,
	zp->z_pflags, tx);
	XVA_SET_RTN(xvap, XAT_SPARSE);
	}
	if (XVA_ISSET_REQ(xvap, XAT_PROJINHERIT)) {
	ZFS_ATTR_SET(zp, ZFS_PROJINHERIT, xoap->xoa_projinherit,
	zp->z_pflags, tx);
	XVA_SET_RTN(xvap, XAT_PROJINHERIT);
	}

	if (update_inode)
	zfs_set_inode_flags(zp, ZTOI(zp));
	}

	int
	zfs_zget(zfsvfs_t zfsvfs, uint64_t obj_num, znode_t *zpp)
	{
	dmu_object_info_t doi;
	dmu_buf_t *db;
	znode_t *zp;
	znode_hold_t *zh;
	int err;
	sa_handle_t *hdl;

	*zpp = NULL;

	again:
	zh = zfs_znode_hold_enter(zfsvfs, obj_num);

	err = sa_buf_hold(zfsvfs->z_os, obj_num, NULL, &db);
	if (err) {
	zfs_znode_hold_exit(zfsvfs, zh);
	return (err);
	}

	dmu_object_info_from_db(db, &doi);
	if (doi.doi_bonus_type != DMU_OT_SA &&
	(doi.doi_bonus_type != DMU_OT_ZNODE \|\|
	(doi.doi_bonus_type == DMU_OT_ZNODE &&
	doi.doi_bonus_size < sizeof (znode_phys_t)))) {
	sa_buf_rele(db, NULL);
	zfs_znode_hold_exit(zfsvfs, zh);
	return (SET_ERROR(EINVAL));
	}

	hdl = dmu_buf_get_user(db);
	if (hdl != NULL) {
	zp = sa_get_userdata(hdl);


	/*
	* Since "SA" does immediate eviction we
	* should never find a sa handle that doesn't
	* know about the znode.
	*/

	ASSERT3P(zp, !=, NULL);

	mutex_enter(&zp->z_lock);
	ASSERT3U(zp->z_id, ==, obj_num);
	/*
	* If zp->z_unlinked is set, the znode is already marked
	* for deletion and should not be discovered. Check this
	* after checking igrab() due to fsetxattr() & O_TMPFILE.
	*
	* If igrab() returns NULL the VFS has independently
	* determined the inode should be evicted and has
	* called iput_final() to start the eviction process.
	* The SA handle is still valid but because the VFS
	* requires that the eviction succeed we must drop
	* our locks and references to allow the eviction to
	* complete. The zfs_zget() may then be retried.
	*
	* This unlikely case could be optimized by registering
	* a sops->drop_inode() callback. The callback would
	* need to detect the active SA hold thereby informing
	* the VFS that this inode should not be evicted.
	*/
	if (igrab(ZTOI(zp)) == NULL) {
	if (zp->z_unlinked)
	err = SET_ERROR(ENOENT);
	else
	err = SET_ERROR(EAGAIN);
	} else {
	*zpp = zp;
	err = 0;
	}

	mutex_exit(&zp->z_lock);
	sa_buf_rele(db, NULL);
	zfs_znode_hold_exit(zfsvfs, zh);

	if (err == EAGAIN) {
	/* inode might need this to finish evict */
	cond_resched();
	goto again;
	}
	return (err);
	}

	/*
	* Not found create new znode/vnode but only if file exists.
	*
	* There is a small window where zfs_vget() could
	* find this object while a file create is still in
	* progress. This is checked for in zfs_znode_alloc()
	*
	* if zfs_znode_alloc() fails it will drop the hold on the
	* bonus buffer.
	*/
	zp = zfs_znode_alloc(zfsvfs, db, doi.doi_data_block_size,
	doi.doi_bonus_type, NULL);
	if (zp == NULL) {
	err = SET_ERROR(ENOENT);
	} else {
	*zpp = zp;
	}
	zfs_znode_hold_exit(zfsvfs, zh);
	return (err);
	}

	int
	zfs_rezget(znode_t *zp)
	{
	zfsvfs_t *zfsvfs = ZTOZSB(zp);
	dmu_object_info_t doi;
	dmu_buf_t *db;
	uint64_t obj_num = zp->z_id;
	uint64_t mode;
	uint64_t links;
	sa_bulk_attr_t bulk[10];
	int err;
	int count = 0;
	uint64_t gen;
	uint64_t z_uid, z_gid;
	uint64_t atime[2], mtime[2], ctime[2];
	uint64_t projid = ZFS_DEFAULT_PROJID;
	znode_hold_t *zh;

	/*
	* skip ctldir, otherwise they will always get invalidated. This will
	* cause funny behaviour for the mounted snapdirs. Especially for
	* Linux >= 3.18, d_invalidate will detach the mountpoint and prevent
	* anyone automount it again as long as someone is still using the
	* detached mount.
	*/
	if (zp->z_is_ctldir)
	return (0);

	zh = zfs_znode_hold_enter(zfsvfs, obj_num);

	mutex_enter(&zp->z_acl_lock);
	if (zp->z_acl_cached) {
	zfs_acl_free(zp->z_acl_cached);
	zp->z_acl_cached = NULL;
	}
	mutex_exit(&zp->z_acl_lock);

	rw_enter(&zp->z_xattr_lock, RW_WRITER);
	if (zp->z_xattr_cached) {
	nvlist_free(zp->z_xattr_cached);
	zp->z_xattr_cached = NULL;
	}
	rw_exit(&zp->z_xattr_lock);

	ASSERT(zp->z_sa_hdl == NULL);
	err = sa_buf_hold(zfsvfs->z_os, obj_num, NULL, &db);
	if (err) {
	zfs_znode_hold_exit(zfsvfs, zh);
	return (err);
	}

	dmu_object_info_from_db(db, &doi);
	if (doi.doi_bonus_type != DMU_OT_SA &&
	(doi.doi_bonus_type != DMU_OT_ZNODE \|\|
	(doi.doi_bonus_type == DMU_OT_ZNODE &&
	doi.doi_bonus_size < sizeof (znode_phys_t)))) {
	sa_buf_rele(db, NULL);
	zfs_znode_hold_exit(zfsvfs, zh);
	return (SET_ERROR(EINVAL));
	}

	zfs_znode_sa_init(zfsvfs, zp, db, doi.doi_bonus_type, NULL);

	/* reload cached values */
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GEN(zfsvfs), NULL,
	&gen, sizeof (gen));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs), NULL,
	&zp->z_size, sizeof (zp->z_size));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), NULL,
	&links, sizeof (links));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL,
	&zp->z_pflags, sizeof (zp->z_pflags));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_UID(zfsvfs), NULL,
	&z_uid, sizeof (z_uid));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GID(zfsvfs), NULL,
	&z_gid, sizeof (z_gid));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MODE(zfsvfs), NULL,
	&mode, sizeof (mode));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_ATIME(zfsvfs), NULL,
	&atime, 16);
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL,
	&mtime, 16);
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL,
	&ctime, 16);

	if (sa_bulk_lookup(zp->z_sa_hdl, bulk, count)) {
	zfs_znode_dmu_fini(zp);
	zfs_znode_hold_exit(zfsvfs, zh);
	return (SET_ERROR(EIO));
	}

	if (dmu_objset_projectquota_enabled(zfsvfs->z_os)) {
	err = sa_lookup(zp->z_sa_hdl, SA_ZPL_PROJID(zfsvfs),
	&projid, 8);
	if (err != 0 && err != ENOENT) {
	zfs_znode_dmu_fini(zp);
	zfs_znode_hold_exit(zfsvfs, zh);
	return (SET_ERROR(err));
	}
	}

	zp->z_projid = projid;
	zp->z_mode = ZTOI(zp)->i_mode = mode;
	zfs_uid_write(ZTOI(zp), z_uid);
	zfs_gid_write(ZTOI(zp), z_gid);

	ZFS_TIME_DECODE(&ZTOI(zp)->i_atime, atime);
	ZFS_TIME_DECODE(&ZTOI(zp)->i_mtime, mtime);
	ZFS_TIME_DECODE(&ZTOI(zp)->i_ctime, ctime);

	if ((uint32_t)gen != ZTOI(zp)->i_generation) {
	zfs_znode_dmu_fini(zp);
	zfs_znode_hold_exit(zfsvfs, zh);
	return (SET_ERROR(EIO));
	}

	set_nlink(ZTOI(zp), (uint32_t)links);
	zfs_set_inode_flags(zp, ZTOI(zp));

	zp->z_blksz = doi.doi_data_block_size;
	zp->z_atime_dirty = B_FALSE;
	zfs_znode_update_vfs(zp);

	/*
	* If the file has zero links, then it has been unlinked on the send
	* side and it must be in the received unlinked set.
	* We call zfs_znode_dmu_fini() now to prevent any accesses to the
	* stale data and to prevent automatic removal of the file in
	* zfs_zinactive(). The file will be removed either when it is removed
	* on the send side and the next incremental stream is received or
	* when the unlinked set gets processed.
	*/
	zp->z_unlinked = (ZTOI(zp)->i_nlink == 0);
	if (zp->z_unlinked)
	zfs_znode_dmu_fini(zp);

	zfs_znode_hold_exit(zfsvfs, zh);

	return (0);
	}

	void
	zfs_znode_delete(znode_t zp, dmu_tx_t tx)
	{
	zfsvfs_t *zfsvfs = ZTOZSB(zp);
	objset_t *os = zfsvfs->z_os;
	uint64_t obj = zp->z_id;
	uint64_t acl_obj = zfs_external_acl(zp);
	znode_hold_t *zh;

	zh = zfs_znode_hold_enter(zfsvfs, obj);
	if (acl_obj) {
	VERIFY(!zp->z_is_sa);
	VERIFY(0 == dmu_object_free(os, acl_obj, tx));
	}
	VERIFY(0 == dmu_object_free(os, obj, tx));
	zfs_znode_dmu_fini(zp);
	zfs_znode_hold_exit(zfsvfs, zh);
	}

	void
	zfs_zinactive(znode_t *zp)
	{
	zfsvfs_t *zfsvfs = ZTOZSB(zp);
	uint64_t z_id = zp->z_id;
	znode_hold_t *zh;

	ASSERT(zp->z_sa_hdl);

	/*
	* Don't allow a zfs_zget() while were trying to release this znode.
	*/
	zh = zfs_znode_hold_enter(zfsvfs, z_id);

	mutex_enter(&zp->z_lock);

	/*
	* If this was the last reference to a file with no links, remove
	* the file from the file system unless the file system is mounted
	* read-only. That can happen, for example, if the file system was
	* originally read-write, the file was opened, then unlinked and
	* the file system was made read-only before the file was finally
	* closed. The file will remain in the unlinked set.
	*/
	if (zp->z_unlinked) {
	ASSERT(!zfsvfs->z_issnap);
	if (!zfs_is_readonly(zfsvfs) && !zfs_unlink_suspend_progress) {
	mutex_exit(&zp->z_lock);
	zfs_znode_hold_exit(zfsvfs, zh);
	zfs_rmnode(zp);
	return;
	}
	}

	mutex_exit(&zp->z_lock);
	zfs_znode_dmu_fini(zp);

	zfs_znode_hold_exit(zfsvfs, zh);
	}

	#if defined(HAVE_INODE_TIMESPEC64_TIMES)
	#define zfs_compare_timespec timespec64_compare
	#else
	#define zfs_compare_timespec timespec_compare
	#endif

	/*
	* Determine whether the znode's atime must be updated. The logic mostly
	* duplicates the Linux kernel's relatime_need_update() functionality.
	* This function is only called if the underlying filesystem actually has
	* atime updates enabled.
	*/
	boolean_t
	zfs_relatime_need_update(const struct inode *ip)
	{
	inode_timespec_t now;

	gethrestime(&now);
	/*
	* In relatime mode, only update the atime if the previous atime
	* is earlier than either the ctime or mtime or if at least a day
	* has passed since the last update of atime.
	*/
	if (zfs_compare_timespec(&ip->i_mtime, &ip->i_atime) >= 0)
	return (B_TRUE);

	if (zfs_compare_timespec(&ip->i_ctime, &ip->i_atime) >= 0)
	return (B_TRUE);

	if ((hrtime_t)now.tv_sec - (hrtime_t)ip->i_atime.tv_sec >= 246060)
	return (B_TRUE);

	return (B_FALSE);
	}

	/*
	* Prepare to update znode time stamps.
	*
	* IN: zp - znode requiring timestamp update
	* flag - ATTR_MTIME, ATTR_CTIME flags
	*
	* OUT: zp - z_seq
	* mtime - new mtime
	* ctime - new ctime
	*
	* Note: We don't update atime here, because we rely on Linux VFS to do
	* atime updating.
	*/
	void
	zfs_tstamp_update_setup(znode_t *zp, uint_t flag, uint64_t mtime[2],
	uint64_t ctime[2])
	{
	inode_timespec_t now;

	gethrestime(&now);

	zp->z_seq++;

	if (flag & ATTR_MTIME) {
	ZFS_TIME_ENCODE(&now, mtime);
	ZFS_TIME_DECODE(&(ZTOI(zp)->i_mtime), mtime);
	if (ZTOZSB(zp)->z_use_fuids) {
	zp->z_pflags \|= (ZFS_ARCHIVE \|
	ZFS_AV_MODIFIED);
	}
	}

	if (flag & ATTR_CTIME) {
	ZFS_TIME_ENCODE(&now, ctime);
	ZFS_TIME_DECODE(&(ZTOI(zp)->i_ctime), ctime);
	if (ZTOZSB(zp)->z_use_fuids)
	zp->z_pflags \|= ZFS_ARCHIVE;
	}
	}

	/*
	* Grow the block size for a file.
	*
	* IN: zp - znode of file to free data in.
	* size - requested block size
	* tx - open transaction.
	*
	* NOTE: this function assumes that the znode is write locked.
	*/
	void
	zfs_grow_blocksize(znode_t zp, uint64_t size, dmu_tx_t tx)
	{
	int error;
	u_longlong_t dummy;

	if (size <= zp->z_blksz)
	return;
	/*
	* If the file size is already greater than the current blocksize,
	* we will not grow. If there is more than one block in a file,
	* the blocksize cannot change.
	*/
	if (zp->z_blksz && zp->z_size > zp->z_blksz)
	return;

	error = dmu_object_set_blocksize(ZTOZSB(zp)->z_os, zp->z_id,
	size, 0, tx);

	if (error == ENOTSUP)
	return;
	ASSERT0(error);

	/* What blocksize did we actually get? */
	dmu_object_size_from_db(sa_get_db(zp->z_sa_hdl), &zp->z_blksz, &dummy);
	}

	/*
	* Increase the file length
	*
	* IN: zp - znode of file to free data in.
	* end - new end-of-file
	*
	* RETURN: 0 on success, error code on failure
	*/
	static int
	zfs_extend(znode_t *zp, uint64_t end)
	{
	zfsvfs_t *zfsvfs = ZTOZSB(zp);
	dmu_tx_t *tx;
	zfs_locked_range_t *lr;
	uint64_t newblksz;
	int error;

	/*
	* We will change zp_size, lock the whole file.
	*/
	lr = zfs_rangelock_enter(&zp->z_rangelock, 0, UINT64_MAX, RL_WRITER);

	/*
	* Nothing to do if file already at desired length.
	*/
	if (end <= zp->z_size) {
	zfs_rangelock_exit(lr);
	return (0);
	}
	tx = dmu_tx_create(zfsvfs->z_os);
	dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE);
	zfs_sa_upgrade_txholds(tx, zp);
	if (end > zp->z_blksz &&
	(!ISP2(zp->z_blksz) \|\| zp->z_blksz < zfsvfs->z_max_blksz)) {
	/*
	* We are growing the file past the current block size.
	*/
	if (zp->z_blksz > ZTOZSB(zp)->z_max_blksz) {
	/*
	* File's blocksize is already larger than the
	* "recordsize" property. Only let it grow to
	* the next power of 2.
	*/
	ASSERT(!ISP2(zp->z_blksz));
	newblksz = MIN(end, 1 << highbit64(zp->z_blksz));
	} else {
	newblksz = MIN(end, ZTOZSB(zp)->z_max_blksz);
	}
	dmu_tx_hold_write(tx, zp->z_id, 0, newblksz);
	} else {
	newblksz = 0;
	}

	error = dmu_tx_assign(tx, TXG_WAIT);
	if (error) {
	dmu_tx_abort(tx);
	zfs_rangelock_exit(lr);
	return (error);
	}

	if (newblksz)
	zfs_grow_blocksize(zp, newblksz, tx);

	zp->z_size = end;

	VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_SIZE(ZTOZSB(zp)),
	&zp->z_size, sizeof (zp->z_size), tx));

	zfs_rangelock_exit(lr);

	dmu_tx_commit(tx);

	return (0);
	}

	/*
	* zfs_zero_partial_page - Modeled after update_pages() but
	* with different arguments and semantics for use by zfs_freesp().
	*
	* Zeroes a piece of a single page cache entry for zp at offset
	* start and length len.
	*
	* Caller must acquire a range lock on the file for the region
	* being zeroed in order that the ARC and page cache stay in sync.
	*/
	static void
	zfs_zero_partial_page(znode_t *zp, uint64_t start, uint64_t len)
	{
	struct address_space *mp = ZTOI(zp)->i_mapping;
	struct page *pp;
	int64_t off;
	void *pb;

	ASSERT((start & PAGE_MASK) == ((start + len - 1) & PAGE_MASK));

	off = start & (PAGE_SIZE - 1);
	start &= PAGE_MASK;

	pp = find_lock_page(mp, start >> PAGE_SHIFT);
	if (pp) {
	if (mapping_writably_mapped(mp))
	flush_dcache_page(pp);

	pb = kmap(pp);
	bzero(pb + off, len);
	kunmap(pp);

	if (mapping_writably_mapped(mp))
	flush_dcache_page(pp);

	mark_page_accessed(pp);
	SetPageUptodate(pp);
	ClearPageError(pp);
	unlock_page(pp);
	put_page(pp);
	}
	}

	/*
	* Free space in a file.
	*
	* IN: zp - znode of file to free data in.
	* off - start of section to free.
	* len - length of section to free.
	*
	* RETURN: 0 on success, error code on failure
	*/
	static int
	zfs_free_range(znode_t *zp, uint64_t off, uint64_t len)
	{
	zfsvfs_t *zfsvfs = ZTOZSB(zp);
	zfs_locked_range_t *lr;
	int error;

	/*
	* Lock the range being freed.
	*/
	lr = zfs_rangelock_enter(&zp->z_rangelock, off, len, RL_WRITER);

	/*
	* Nothing to do if file already at desired length.
	*/
	if (off >= zp->z_size) {
	zfs_rangelock_exit(lr);
	return (0);
	}

	if (off + len > zp->z_size)
	len = zp->z_size - off;

	error = dmu_free_long_range(zfsvfs->z_os, zp->z_id, off, len);

	/*
	* Zero partial page cache entries. This must be done under a
	* range lock in order to keep the ARC and page cache in sync.
	*/
	if (zp->z_is_mapped) {
	loff_t first_page, last_page, page_len;
	loff_t first_page_offset, last_page_offset;

	/* first possible full page in hole */
	first_page = (off + PAGE_SIZE - 1) >> PAGE_SHIFT;
	/* last page of hole */
	last_page = (off + len) >> PAGE_SHIFT;

	/* offset of first_page */
	first_page_offset = first_page << PAGE_SHIFT;
	/* offset of last_page */
	last_page_offset = last_page << PAGE_SHIFT;

	/* truncate whole pages */
	if (last_page_offset > first_page_offset) {
	truncate_inode_pages_range(ZTOI(zp)->i_mapping,
	first_page_offset, last_page_offset - 1);
	}

	/* truncate sub-page ranges */
	if (first_page > last_page) {
	/* entire punched area within a single page */
	zfs_zero_partial_page(zp, off, len);
	} else {
	/* beginning of punched area at the end of a page */
	page_len = first_page_offset - off;
	if (page_len > 0)
	zfs_zero_partial_page(zp, off, page_len);

	/* end of punched area at the beginning of a page */
	page_len = off + len - last_page_offset;
	if (page_len > 0)
	zfs_zero_partial_page(zp, last_page_offset,
	page_len);
	}
	}
	zfs_rangelock_exit(lr);

	return (error);
	}

	/*
	* Truncate a file
	*
	* IN: zp - znode of file to free data in.
	* end - new end-of-file.
	*
	* RETURN: 0 on success, error code on failure
	*/
	static int
	zfs_trunc(znode_t *zp, uint64_t end)
	{
	zfsvfs_t *zfsvfs = ZTOZSB(zp);
	dmu_tx_t *tx;
	zfs_locked_range_t *lr;
	int error;
	sa_bulk_attr_t bulk[2];
	int count = 0;

	/*
	* We will change zp_size, lock the whole file.
	*/
	lr = zfs_rangelock_enter(&zp->z_rangelock, 0, UINT64_MAX, RL_WRITER);

	/*
	* Nothing to do if file already at desired length.
	*/
	if (end >= zp->z_size) {
	zfs_rangelock_exit(lr);
	return (0);
	}

	error = dmu_free_long_range(zfsvfs->z_os, zp->z_id, end,
	DMU_OBJECT_END);
	if (error) {
	zfs_rangelock_exit(lr);
	return (error);
	}
	tx = dmu_tx_create(zfsvfs->z_os);
	dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE);
	zfs_sa_upgrade_txholds(tx, zp);
	dmu_tx_mark_netfree(tx);
	error = dmu_tx_assign(tx, TXG_WAIT);
	if (error) {
	dmu_tx_abort(tx);
	zfs_rangelock_exit(lr);
	return (error);
	}

	zp->z_size = end;
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs),
	NULL, &zp->z_size, sizeof (zp->z_size));

	if (end == 0) {
	zp->z_pflags &= ~ZFS_SPARSE;
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs),
	NULL, &zp->z_pflags, 8);
	}
	VERIFY(sa_bulk_update(zp->z_sa_hdl, bulk, count, tx) == 0);

	dmu_tx_commit(tx);
	zfs_rangelock_exit(lr);

	return (0);
	}

	/*
	* Free space in a file
	*
	* IN: zp - znode of file to free data in.
	* off - start of range
	* len - end of range (0 => EOF)
	* flag - current file open mode flags.
	* log - TRUE if this action should be logged
	*
	* RETURN: 0 on success, error code on failure
	*/
	int
	zfs_freesp(znode_t *zp, uint64_t off, uint64_t len, int flag, boolean_t log)
	{
	dmu_tx_t *tx;
	zfsvfs_t *zfsvfs = ZTOZSB(zp);
	zilog_t *zilog = zfsvfs->z_log;
	uint64_t mode;
	uint64_t mtime[2], ctime[2];
	sa_bulk_attr_t bulk[3];
	int count = 0;
	int error;

	if ((error = sa_lookup(zp->z_sa_hdl, SA_ZPL_MODE(zfsvfs), &mode,
	sizeof (mode))) != 0)
	return (error);

	if (off > zp->z_size) {
	error = zfs_extend(zp, off+len);
	if (error == 0 && log)
	goto log;
	goto out;
	}

	if (len == 0) {
	error = zfs_trunc(zp, off);
	} else {
	if ((error = zfs_free_range(zp, off, len)) == 0 &&
	off + len > zp->z_size)
	error = zfs_extend(zp, off+len);
	}
	if (error \|\| !log)
	goto out;
	log:
	tx = dmu_tx_create(zfsvfs->z_os);
	dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE);
	zfs_sa_upgrade_txholds(tx, zp);
	error = dmu_tx_assign(tx, TXG_WAIT);
	if (error) {
	dmu_tx_abort(tx);
	goto out;
	}

	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL, mtime, 16);
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, ctime, 16);
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs),
	NULL, &zp->z_pflags, 8);
	zfs_tstamp_update_setup(zp, CONTENT_MODIFIED, mtime, ctime);
	error = sa_bulk_update(zp->z_sa_hdl, bulk, count, tx);
	ASSERT(error == 0);

	zfs_log_truncate(zilog, tx, TX_TRUNCATE, zp, off, len);

	dmu_tx_commit(tx);

	zfs_znode_update_vfs(zp);
	error = 0;

	out:
	/*
	* Truncate the page cache - for file truncate operations, use
	* the purpose-built API for truncations. For punching operations,
	* the truncation is handled under a range lock in zfs_free_range.
	*/
	if (len == 0)
	truncate_setsize(ZTOI(zp), off);
	return (error);
	}

	void
	zfs_create_fs(objset_t os, cred_t cr, nvlist_t zplprops, dmu_tx_t tx)
	{
	struct super_block *sb;
	zfsvfs_t *zfsvfs;
	uint64_t moid, obj, sa_obj, version;
	uint64_t sense = ZFS_CASE_SENSITIVE;
	uint64_t norm = 0;
	nvpair_t *elem;
	int size;
	int error;
	int i;
	znode_t *rootzp = NULL;
	vattr_t vattr;
	znode_t *zp;
	zfs_acl_ids_t acl_ids;

	/*
	* First attempt to create master node.
	*/
	/*
	* In an empty objset, there are no blocks to read and thus
	* there can be no i/o errors (which we assert below).
	*/
	moid = MASTER_NODE_OBJ;
	error = zap_create_claim(os, moid, DMU_OT_MASTER_NODE,
	DMU_OT_NONE, 0, tx);
	ASSERT(error == 0);

	/*
	* Set starting attributes.
	*/
	version = zfs_zpl_version_map(spa_version(dmu_objset_spa(os)));
	elem = NULL;
	while ((elem = nvlist_next_nvpair(zplprops, elem)) != NULL) {
	/* For the moment we expect all zpl props to be uint64_ts */
	uint64_t val;
	char *name;

	ASSERT(nvpair_type(elem) == DATA_TYPE_UINT64);
	VERIFY(nvpair_value_uint64(elem, &val) == 0);
	name = nvpair_name(elem);
	if (strcmp(name, zfs_prop_to_name(ZFS_PROP_VERSION)) == 0) {
	if (val < version)
	version = val;
	} else {
	error = zap_update(os, moid, name, 8, 1, &val, tx);
	}
	ASSERT(error == 0);
	if (strcmp(name, zfs_prop_to_name(ZFS_PROP_NORMALIZE)) == 0)
	norm = val;
	else if (strcmp(name, zfs_prop_to_name(ZFS_PROP_CASE)) == 0)
	sense = val;
	}
	ASSERT(version != 0);
	error = zap_update(os, moid, ZPL_VERSION_STR, 8, 1, &version, tx);

	/*
	* Create zap object used for SA attribute registration
	*/

	if (version >= ZPL_VERSION_SA) {
	sa_obj = zap_create(os, DMU_OT_SA_MASTER_NODE,
	DMU_OT_NONE, 0, tx);
	error = zap_add(os, moid, ZFS_SA_ATTRS, 8, 1, &sa_obj, tx);
	ASSERT(error == 0);
	} else {
	sa_obj = 0;
	}
	/*
	* Create a delete queue.
	*/
	obj = zap_create(os, DMU_OT_UNLINKED_SET, DMU_OT_NONE, 0, tx);

	error = zap_add(os, moid, ZFS_UNLINKED_SET, 8, 1, &obj, tx);
	ASSERT(error == 0);

	/*
	* Create root znode. Create minimal znode/inode/zfsvfs/sb
	* to allow zfs_mknode to work.
	*/
	vattr.va_mask = ATTR_MODE\|ATTR_UID\|ATTR_GID;
	vattr.va_mode = S_IFDIR\|0755;
	vattr.va_uid = crgetuid(cr);
	vattr.va_gid = crgetgid(cr);

	rootzp = kmem_cache_alloc(znode_cache, KM_SLEEP);
	rootzp->z_unlinked = B_FALSE;
	rootzp->z_atime_dirty = B_FALSE;
	rootzp->z_is_sa = USE_SA(version, os);
	rootzp->z_pflags = 0;

	zfsvfs = kmem_zalloc(sizeof (zfsvfs_t), KM_SLEEP);
	zfsvfs->z_os = os;
	zfsvfs->z_parent = zfsvfs;
	zfsvfs->z_version = version;
	zfsvfs->z_use_fuids = USE_FUIDS(version, os);
	zfsvfs->z_use_sa = USE_SA(version, os);
	zfsvfs->z_norm = norm;

	sb = kmem_zalloc(sizeof (struct super_block), KM_SLEEP);
	sb->s_fs_info = zfsvfs;

	ZTOI(rootzp)->i_sb = sb;

	error = sa_setup(os, sa_obj, zfs_attr_table, ZPL_END,
	&zfsvfs->z_attr_table);

	ASSERT(error == 0);

	/*
	* Fold case on file systems that are always or sometimes case
	* insensitive.
	*/
	if (sense == ZFS_CASE_INSENSITIVE \|\| sense == ZFS_CASE_MIXED)
	zfsvfs->z_norm \|= U8_TEXTPREP_TOUPPER;

	mutex_init(&zfsvfs->z_znodes_lock, NULL, MUTEX_DEFAULT, NULL);
	list_create(&zfsvfs->z_all_znodes, sizeof (znode_t),
	offsetof(znode_t, z_link_node));

	size = MIN(1 << (highbit64(zfs_object_mutex_size)-1), ZFS_OBJ_MTX_MAX);
	zfsvfs->z_hold_size = size;
	zfsvfs->z_hold_trees = vmem_zalloc(sizeof (avl_tree_t) * size,
	KM_SLEEP);
	zfsvfs->z_hold_locks = vmem_zalloc(sizeof (kmutex_t) * size, KM_SLEEP);
	for (i = 0; i != size; i++) {
	avl_create(&zfsvfs->z_hold_trees[i], zfs_znode_hold_compare,
	sizeof (znode_hold_t), offsetof(znode_hold_t, zh_node));
	mutex_init(&zfsvfs->z_hold_locks[i], NULL, MUTEX_DEFAULT, NULL);
	}

	VERIFY(0 == zfs_acl_ids_create(rootzp, IS_ROOT_NODE, &vattr,
	cr, NULL, &acl_ids));
	zfs_mknode(rootzp, &vattr, tx, cr, IS_ROOT_NODE, &zp, &acl_ids);
	ASSERT3P(zp, ==, rootzp);
	error = zap_add(os, moid, ZFS_ROOT_OBJ, 8, 1, &rootzp->z_id, tx);
	ASSERT(error == 0);
	zfs_acl_ids_free(&acl_ids);

	atomic_set(&ZTOI(rootzp)->i_count, 0);
	sa_handle_destroy(rootzp->z_sa_hdl);
	kmem_cache_free(znode_cache, rootzp);

	for (i = 0; i != size; i++) {
	avl_destroy(&zfsvfs->z_hold_trees[i]);
	mutex_destroy(&zfsvfs->z_hold_locks[i]);
	}

	mutex_destroy(&zfsvfs->z_znodes_lock);

	vmem_free(zfsvfs->z_hold_trees, sizeof (avl_tree_t) * size);
	vmem_free(zfsvfs->z_hold_locks, sizeof (kmutex_t) * size);
	kmem_free(sb, sizeof (struct super_block));
	kmem_free(zfsvfs, sizeof (zfsvfs_t));
	}
	#endif /* _KERNEL */

	static int
	zfs_sa_setup(objset_t osp, sa_attr_type_t *sa_table)
	{
	uint64_t sa_obj = 0;
	int error;

	error = zap_lookup(osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 8, 1, &sa_obj);
	if (error != 0 && error != ENOENT)
	return (error);

	error = sa_setup(osp, sa_obj, zfs_attr_table, ZPL_END, sa_table);
	return (error);
	}

	static int
	zfs_grab_sa_handle(objset_t osp, uint64_t obj, sa_handle_t *hdlp,
	dmu_buf_t *db, void tag)
	{
	dmu_object_info_t doi;
	int error;

	if ((error = sa_buf_hold(osp, obj, tag, db)) != 0)
	return (error);

	dmu_object_info_from_db(*db, &doi);
	if ((doi.doi_bonus_type != DMU_OT_SA &&
	doi.doi_bonus_type != DMU_OT_ZNODE) \|\|
	(doi.doi_bonus_type == DMU_OT_ZNODE &&
	doi.doi_bonus_size < sizeof (znode_phys_t))) {
	sa_buf_rele(*db, tag);
	return (SET_ERROR(ENOTSUP));
	}

	error = sa_handle_get(osp, obj, NULL, SA_HDL_PRIVATE, hdlp);
	if (error != 0) {
	sa_buf_rele(*db, tag);
	return (error);
	}

	return (0);
	}

	static void
	zfs_release_sa_handle(sa_handle_t hdl, dmu_buf_t db, void *tag)
	{
	sa_handle_destroy(hdl);
	sa_buf_rele(db, tag);
	}

	/*
	* Given an object number, return its parent object number and whether
	* or not the object is an extended attribute directory.
	*/
	static int
	zfs_obj_to_pobj(objset_t osp, sa_handle_t hdl, sa_attr_type_t *sa_table,
	uint64_t pobjp, int is_xattrdir)
	{
	uint64_t parent;
	uint64_t pflags;
	uint64_t mode;
	uint64_t parent_mode;
	sa_bulk_attr_t bulk[3];
	sa_handle_t *sa_hdl;
	dmu_buf_t *sa_db;
	int count = 0;
	int error;

	SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_PARENT], NULL,
	&parent, sizeof (parent));
	SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_FLAGS], NULL,
	&pflags, sizeof (pflags));
	SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_MODE], NULL,
	&mode, sizeof (mode));

	if ((error = sa_bulk_lookup(hdl, bulk, count)) != 0)
	return (error);

	/*
	* When a link is removed its parent pointer is not changed and will
	* be invalid. There are two cases where a link is removed but the
	* file stays around, when it goes to the delete queue and when there
	* are additional links.
	*/
	error = zfs_grab_sa_handle(osp, parent, &sa_hdl, &sa_db, FTAG);
	if (error != 0)
	return (error);

	error = sa_lookup(sa_hdl, ZPL_MODE, &parent_mode, sizeof (parent_mode));
	zfs_release_sa_handle(sa_hdl, sa_db, FTAG);
	if (error != 0)
	return (error);

	*is_xattrdir = ((pflags & ZFS_XATTR) != 0) && S_ISDIR(mode);

	/*
	* Extended attributes can be applied to files, directories, etc.
	* Otherwise the parent must be a directory.
	*/
	if (!*is_xattrdir && !S_ISDIR(parent_mode))
	return (SET_ERROR(EINVAL));

	*pobjp = parent;

	return (0);
	}

	/*
	* Given an object number, return some zpl level statistics
	*/
	static int
	zfs_obj_to_stats_impl(sa_handle_t hdl, sa_attr_type_t sa_table,
	zfs_stat_t *sb)
	{
	sa_bulk_attr_t bulk[4];
	int count = 0;

	SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_MODE], NULL,
	&sb->zs_mode, sizeof (sb->zs_mode));
	SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_GEN], NULL,
	&sb->zs_gen, sizeof (sb->zs_gen));
	SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_LINKS], NULL,
	&sb->zs_links, sizeof (sb->zs_links));
	SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_CTIME], NULL,
	&sb->zs_ctime, sizeof (sb->zs_ctime));

	return (sa_bulk_lookup(hdl, bulk, count));
	}

	static int
	zfs_obj_to_path_impl(objset_t osp, uint64_t obj, sa_handle_t hdl,
	sa_attr_type_t sa_table, char buf, int len)
	{
	sa_handle_t *sa_hdl;
	sa_handle_t *prevhdl = NULL;
	dmu_buf_t *prevdb = NULL;
	dmu_buf_t *sa_db = NULL;
	char *path = buf + len - 1;
	int error;

	*path = '\0';
	sa_hdl = hdl;

	uint64_t deleteq_obj;
	VERIFY0(zap_lookup(osp, MASTER_NODE_OBJ,
	ZFS_UNLINKED_SET, sizeof (uint64_t), 1, &deleteq_obj));
	error = zap_lookup_int(osp, deleteq_obj, obj);
	if (error == 0) {
	return (ESTALE);
	} else if (error != ENOENT) {
	return (error);
	}
	error = 0;

	for (;;) {
	uint64_t pobj = 0;
	char component[MAXNAMELEN + 2];
	size_t complen;
	int is_xattrdir = 0;

	if (prevdb) {
	ASSERT(prevhdl != NULL);
	zfs_release_sa_handle(prevhdl, prevdb, FTAG);
	}

	if ((error = zfs_obj_to_pobj(osp, sa_hdl, sa_table, &pobj,
	&is_xattrdir)) != 0)
	break;

	if (pobj == obj) {
	if (path[0] != '/')
	*--path = '/';
	break;
	}

	component[0] = '/';
	if (is_xattrdir) {
	(void) sprintf(component + 1, "<xattrdir>");
	} else {
	error = zap_value_search(osp, pobj, obj,
	ZFS_DIRENT_OBJ(-1ULL), component + 1);
	if (error != 0)
	break;
	}

	complen = strlen(component);
	path -= complen;
	ASSERT(path >= buf);
	bcopy(component, path, complen);
	obj = pobj;

	if (sa_hdl != hdl) {
	prevhdl = sa_hdl;
	prevdb = sa_db;
	}
	error = zfs_grab_sa_handle(osp, obj, &sa_hdl, &sa_db, FTAG);
	if (error != 0) {
	sa_hdl = prevhdl;
	sa_db = prevdb;
	break;
	}
	}

	if (sa_hdl != NULL && sa_hdl != hdl) {
	ASSERT(sa_db != NULL);
	zfs_release_sa_handle(sa_hdl, sa_db, FTAG);
	}

	if (error == 0)
	(void) memmove(buf, path, buf + len - path);

	return (error);
	}

	int
	zfs_obj_to_path(objset_t osp, uint64_t obj, char buf, int len)
	{
	sa_attr_type_t *sa_table;
	sa_handle_t *hdl;
	dmu_buf_t *db;
	int error;

	error = zfs_sa_setup(osp, &sa_table);
	if (error != 0)
	return (error);

	error = zfs_grab_sa_handle(osp, obj, &hdl, &db, FTAG);
	if (error != 0)
	return (error);

	error = zfs_obj_to_path_impl(osp, obj, hdl, sa_table, buf, len);

	zfs_release_sa_handle(hdl, db, FTAG);
	return (error);
	}

	int
	zfs_obj_to_stats(objset_t osp, uint64_t obj, zfs_stat_t sb,
	char *buf, int len)
	{
	char *path = buf + len - 1;
	sa_attr_type_t *sa_table;
	sa_handle_t *hdl;
	dmu_buf_t *db;
	int error;

	*path = '\0';

	error = zfs_sa_setup(osp, &sa_table);
	if (error != 0)
	return (error);

	error = zfs_grab_sa_handle(osp, obj, &hdl, &db, FTAG);
	if (error != 0)
	return (error);

	error = zfs_obj_to_stats_impl(hdl, sa_table, sb);
	if (error != 0) {
	zfs_release_sa_handle(hdl, db, FTAG);
	return (error);
	}

	error = zfs_obj_to_path_impl(osp, obj, hdl, sa_table, buf, len);

	zfs_release_sa_handle(hdl, db, FTAG);
	return (error);
	}

	#if defined(_KERNEL)
	EXPORT_SYMBOL(zfs_create_fs);
	EXPORT_SYMBOL(zfs_obj_to_path);

	/* CSTYLED */
	module_param(zfs_object_mutex_size, uint, 0644);
	MODULE_PARM_DESC(zfs_object_mutex_size, "Size of znode hold array");
	module_param(zfs_unlink_suspend_progress, int, 0644);
	MODULE_PARM_DESC(zfs_unlink_suspend_progress, "Set to prevent async unlinks "
	"(debug - leaks space into the unlinked set)");
	#endif
	diff --git a/sys/contrib/openzfs/module/zfs/arc.c b/sys/contrib/openzfs/module/zfs/arc.c
	index 5526cae378fb..737904f34855 100644
	--- a/sys/contrib/openzfs/module/zfs/arc.c
	+++ b/sys/contrib/openzfs/module/zfs/arc.c
	@@ -1,10765 +1,10765 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2018, Joyent, Inc.
	* Copyright (c) 2011, 2020, Delphix. All rights reserved.
	* Copyright (c) 2014, Saso Kiselkov. All rights reserved.
	* Copyright (c) 2017, Nexenta Systems, Inc. All rights reserved.
	* Copyright (c) 2019, loli10K <ezomori.nozomu@gmail.com>. All rights reserved.
	* Copyright (c) 2020, George Amanakis. All rights reserved.
	* Copyright (c) 2019, Klara Inc.
	* Copyright (c) 2019, Allan Jude
	* Copyright (c) 2020, The FreeBSD Foundation [1]
	*
	* [1] Portions of this software were developed by Allan Jude
	* under sponsorship from the FreeBSD Foundation.
	*/

	/*
	* DVA-based Adjustable Replacement Cache
	*
	* While much of the theory of operation used here is
	* based on the self-tuning, low overhead replacement cache
	* presented by Megiddo and Modha at FAST 2003, there are some
	* significant differences:
	*
	* 1. The Megiddo and Modha model assumes any page is evictable.
	* Pages in its cache cannot be "locked" into memory. This makes
	* the eviction algorithm simple: evict the last page in the list.
	* This also make the performance characteristics easy to reason
	* about. Our cache is not so simple. At any given moment, some
	* subset of the blocks in the cache are un-evictable because we
	* have handed out a reference to them. Blocks are only evictable
	* when there are no external references active. This makes
	* eviction far more problematic: we choose to evict the evictable
	* blocks that are the "lowest" in the list.
	*
	* There are times when it is not possible to evict the requested
	* space. In these circumstances we are unable to adjust the cache
	* size. To prevent the cache growing unbounded at these times we
	* implement a "cache throttle" that slows the flow of new data
	* into the cache until we can make space available.
	*
	* 2. The Megiddo and Modha model assumes a fixed cache size.
	* Pages are evicted when the cache is full and there is a cache
	* miss. Our model has a variable sized cache. It grows with
	* high use, but also tries to react to memory pressure from the
	* operating system: decreasing its size when system memory is
	* tight.
	*
	* 3. The Megiddo and Modha model assumes a fixed page size. All
	* elements of the cache are therefore exactly the same size. So
	* when adjusting the cache size following a cache miss, its simply
	* a matter of choosing a single page to evict. In our model, we
	* have variable sized cache blocks (ranging from 512 bytes to
	* 128K bytes). We therefore choose a set of blocks to evict to make
	* space for a cache miss that approximates as closely as possible
	* the space used by the new block.
	*
	* See also: "ARC: A Self-Tuning, Low Overhead Replacement Cache"
	* by N. Megiddo & D. Modha, FAST 2003
	*/

	/*
	* The locking model:
	*
	* A new reference to a cache buffer can be obtained in two
	* ways: 1) via a hash table lookup using the DVA as a key,
	* or 2) via one of the ARC lists. The arc_read() interface
	* uses method 1, while the internal ARC algorithms for
	* adjusting the cache use method 2. We therefore provide two
	* types of locks: 1) the hash table lock array, and 2) the
	* ARC list locks.
	*
	* Buffers do not have their own mutexes, rather they rely on the
	* hash table mutexes for the bulk of their protection (i.e. most
	* fields in the arc_buf_hdr_t are protected by these mutexes).
	*
	* buf_hash_find() returns the appropriate mutex (held) when it
	* locates the requested buffer in the hash table. It returns
	* NULL for the mutex if the buffer was not in the table.
	*
	* buf_hash_remove() expects the appropriate hash mutex to be
	* already held before it is invoked.
	*
	* Each ARC state also has a mutex which is used to protect the
	* buffer list associated with the state. When attempting to
	* obtain a hash table lock while holding an ARC list lock you
	* must use: mutex_tryenter() to avoid deadlock. Also note that
	* the active state mutex must be held before the ghost state mutex.
	*
	* It as also possible to register a callback which is run when the
	* arc_meta_limit is reached and no buffers can be safely evicted. In
	* this case the arc user should drop a reference on some arc buffers so
	* they can be reclaimed and the arc_meta_limit honored. For example,
	* when using the ZPL each dentry holds a references on a znode. These
	* dentries must be pruned before the arc buffer holding the znode can
	* be safely evicted.
	*
	* Note that the majority of the performance stats are manipulated
	* with atomic operations.
	*
	* The L2ARC uses the l2ad_mtx on each vdev for the following:
	*
	* - L2ARC buflist creation
	* - L2ARC buflist eviction
	* - L2ARC write completion, which walks L2ARC buflists
	* - ARC header destruction, as it removes from L2ARC buflists
	* - ARC header release, as it removes from L2ARC buflists
	*/

	/*
	* ARC operation:
	*
	* Every block that is in the ARC is tracked by an arc_buf_hdr_t structure.
	* This structure can point either to a block that is still in the cache or to
	* one that is only accessible in an L2 ARC device, or it can provide
	* information about a block that was recently evicted. If a block is
	* only accessible in the L2ARC, then the arc_buf_hdr_t only has enough
	* information to retrieve it from the L2ARC device. This information is
	* stored in the l2arc_buf_hdr_t sub-structure of the arc_buf_hdr_t. A block
	* that is in this state cannot access the data directly.
	*
	* Blocks that are actively being referenced or have not been evicted
	* are cached in the L1ARC. The L1ARC (l1arc_buf_hdr_t) is a structure within
	* the arc_buf_hdr_t that will point to the data block in memory. A block can
	* only be read by a consumer if it has an l1arc_buf_hdr_t. The L1ARC
	* caches data in two ways -- in a list of ARC buffers (arc_buf_t) and
	* also in the arc_buf_hdr_t's private physical data block pointer (b_pabd).
	*
	* The L1ARC's data pointer may or may not be uncompressed. The ARC has the
	* ability to store the physical data (b_pabd) associated with the DVA of the
	* arc_buf_hdr_t. Since the b_pabd is a copy of the on-disk physical block,
	* it will match its on-disk compression characteristics. This behavior can be
	* disabled by setting 'zfs_compressed_arc_enabled' to B_FALSE. When the
	* compressed ARC functionality is disabled, the b_pabd will point to an
	* uncompressed version of the on-disk data.
	*
	* Data in the L1ARC is not accessed by consumers of the ARC directly. Each
	* arc_buf_hdr_t can have multiple ARC buffers (arc_buf_t) which reference it.
	* Each ARC buffer (arc_buf_t) is being actively accessed by a specific ARC
	* consumer. The ARC will provide references to this data and will keep it
	* cached until it is no longer in use. The ARC caches only the L1ARC's physical
	* data block and will evict any arc_buf_t that is no longer referenced. The
	* amount of memory consumed by the arc_buf_ts' data buffers can be seen via the
	* "overhead_size" kstat.
	*
	* Depending on the consumer, an arc_buf_t can be requested in uncompressed or
	* compressed form. The typical case is that consumers will want uncompressed
	* data, and when that happens a new data buffer is allocated where the data is
	* decompressed for them to use. Currently the only consumer who wants
	* compressed arc_buf_t's is "zfs send", when it streams data exactly as it
	* exists on disk. When this happens, the arc_buf_t's data buffer is shared
	* with the arc_buf_hdr_t.
	*
	* Here is a diagram showing an arc_buf_hdr_t referenced by two arc_buf_t's. The
	* first one is owned by a compressed send consumer (and therefore references
	* the same compressed data buffer as the arc_buf_hdr_t) and the second could be
	* used by any other consumer (and has its own uncompressed copy of the data
	* buffer).
	*
	* arc_buf_hdr_t
	* +-----------+
	* \| fields \|
	* \| common to \|
	* \| L1- and \|
	* \| L2ARC \|
	* +-----------+
	* \| l2arc_buf_hdr_t
	* \| \|
	* +-----------+
	* \| l1arc_buf_hdr_t
	* \| \| arc_buf_t
	* \| b_buf +------------>+-----------+ arc_buf_t
	* \| b_pabd +-+ \|b_next +---->+-----------+
	* +-----------+ \| \|-----------\| \|b_next +-->NULL
	* \| \|b_comp = T \| +-----------+
	* \| \|b_data +-+ \|b_comp = F \|
	* \| +-----------+ \| \|b_data +-+
	* +->+------+ \| +-----------+ \|
	* compressed \| \| \| \|
	* data \| \|<--------------+ \| uncompressed
	* +------+ compressed, \| data
	* shared +-->+------+
	* data \| \|
	* \| \|
	* +------+
	*
	* When a consumer reads a block, the ARC must first look to see if the
	* arc_buf_hdr_t is cached. If the hdr is cached then the ARC allocates a new
	* arc_buf_t and either copies uncompressed data into a new data buffer from an
	* existing uncompressed arc_buf_t, decompresses the hdr's b_pabd buffer into a
	* new data buffer, or shares the hdr's b_pabd buffer, depending on whether the
	* hdr is compressed and the desired compression characteristics of the
	* arc_buf_t consumer. If the arc_buf_t ends up sharing data with the
	* arc_buf_hdr_t and both of them are uncompressed then the arc_buf_t must be
	* the last buffer in the hdr's b_buf list, however a shared compressed buf can
	* be anywhere in the hdr's list.
	*
	* The diagram below shows an example of an uncompressed ARC hdr that is
	* sharing its data with an arc_buf_t (note that the shared uncompressed buf is
	* the last element in the buf list):
	*
	* arc_buf_hdr_t
	* +-----------+
	* \| \|
	* \| \|
	* \| \|
	* +-----------+
	* l2arc_buf_hdr_t\| \|
	* \| \|
	* +-----------+
	* l1arc_buf_hdr_t\| \|
	* \| \| arc_buf_t (shared)
	* \| b_buf +------------>+---------+ arc_buf_t
	* \| \| \|b_next +---->+---------+
	* \| b_pabd +-+ \|---------\| \|b_next +-->NULL
	* +-----------+ \| \| \| +---------+
	* \| \|b_data +-+ \| \|
	* \| +---------+ \| \|b_data +-+
	* +->+------+ \| +---------+ \|
	* \| \| \| \|
	* uncompressed \| \| \| \|
	* data +------+ \| \|
	* ^ +->+------+ \|
	* \| uncompressed \| \| \|
	* \| data \| \| \|
	* \| +------+ \|
	* +---------------------------------+
	*
	* Writing to the ARC requires that the ARC first discard the hdr's b_pabd
	* since the physical block is about to be rewritten. The new data contents
	* will be contained in the arc_buf_t. As the I/O pipeline performs the write,
	* it may compress the data before writing it to disk. The ARC will be called
	* with the transformed data and will bcopy the transformed on-disk block into
	* a newly allocated b_pabd. Writes are always done into buffers which have
	* either been loaned (and hence are new and don't have other readers) or
	* buffers which have been released (and hence have their own hdr, if there
	* were originally other readers of the buf's original hdr). This ensures that
	* the ARC only needs to update a single buf and its hdr after a write occurs.
	*
	* When the L2ARC is in use, it will also take advantage of the b_pabd. The
	* L2ARC will always write the contents of b_pabd to the L2ARC. This means
	* that when compressed ARC is enabled that the L2ARC blocks are identical
	* to the on-disk block in the main data pool. This provides a significant
	* advantage since the ARC can leverage the bp's checksum when reading from the
	* L2ARC to determine if the contents are valid. However, if the compressed
	* ARC is disabled, then the L2ARC's block must be transformed to look
	* like the physical block in the main data pool before comparing the
	* checksum and determining its validity.
	*
	* The L1ARC has a slightly different system for storing encrypted data.
	* Raw (encrypted + possibly compressed) data has a few subtle differences from
	* data that is just compressed. The biggest difference is that it is not
	* possible to decrypt encrypted data (or vice-versa) if the keys aren't loaded.
	* The other difference is that encryption cannot be treated as a suggestion.
	* If a caller would prefer compressed data, but they actually wind up with
	* uncompressed data the worst thing that could happen is there might be a
	* performance hit. If the caller requests encrypted data, however, we must be
	* sure they actually get it or else secret information could be leaked. Raw
	* data is stored in hdr->b_crypt_hdr.b_rabd. An encrypted header, therefore,
	* may have both an encrypted version and a decrypted version of its data at
	* once. When a caller needs a raw arc_buf_t, it is allocated and the data is
	* copied out of this header. To avoid complications with b_pabd, raw buffers
	* cannot be shared.
	*/

	#include <sys/spa.h>
	#include <sys/zio.h>
	#include <sys/spa_impl.h>
	#include <sys/zio_compress.h>
	#include <sys/zio_checksum.h>
	#include <sys/zfs_context.h>
	#include <sys/arc.h>
	#include <sys/zfs_refcount.h>
	#include <sys/vdev.h>
	#include <sys/vdev_impl.h>
	#include <sys/dsl_pool.h>
	#include <sys/multilist.h>
	#include <sys/abd.h>
	#include <sys/zil.h>
	#include <sys/fm/fs/zfs.h>
	#include <sys/callb.h>
	#include <sys/kstat.h>
	#include <sys/zthr.h>
	#include <zfs_fletcher.h>
	#include <sys/arc_impl.h>
	#include <sys/trace_zfs.h>
	#include <sys/aggsum.h>
	#include <sys/wmsum.h>
	#include <cityhash.h>
	#include <sys/vdev_trim.h>
	#include <sys/zfs_racct.h>
	#include <sys/zstd/zstd.h>

	#ifndef _KERNEL
	/* set with ZFS_DEBUG=watch, to enable watchpoints on frozen buffers */
	boolean_t arc_watch = B_FALSE;
	#endif

	/*
	* This thread's job is to keep enough free memory in the system, by
	* calling arc_kmem_reap_soon() plus arc_reduce_target_size(), which improves
	* arc_available_memory().
	*/
	static zthr_t *arc_reap_zthr;

	/*
	* This thread's job is to keep arc_size under arc_c, by calling
	* arc_evict(), which improves arc_is_overflowing().
	*/
	static zthr_t *arc_evict_zthr;

	static kmutex_t arc_evict_lock;
	static boolean_t arc_evict_needed = B_FALSE;

	/*
	* Count of bytes evicted since boot.
	*/
	static uint64_t arc_evict_count;

	/*
	* List of arc_evict_waiter_t's, representing threads waiting for the
	* arc_evict_count to reach specific values.
	*/
	static list_t arc_evict_waiters;

	/*
	* When arc_is_overflowing(), arc_get_data_impl() waits for this percent of
	* the requested amount of data to be evicted. For example, by default for
	* every 2KB that's evicted, 1KB of it may be "reused" by a new allocation.
	* Since this is above 100%, it ensures that progress is made towards getting
	* arc_size under arc_c. Since this is finite, it ensures that allocations
	* can still happen, even during the potentially long time that arc_size is
	* more than arc_c.
	*/
	int zfs_arc_eviction_pct = 200;

	/*
	* The number of headers to evict in arc_evict_state_impl() before
	* dropping the sublist lock and evicting from another sublist. A lower
	* value means we're more likely to evict the "correct" header (i.e. the
	* oldest header in the arc state), but comes with higher overhead
	* (i.e. more invocations of arc_evict_state_impl()).
	*/
	int zfs_arc_evict_batch_limit = 10;

	/* number of seconds before growing cache again */
	int arc_grow_retry = 5;

	/*
	* Minimum time between calls to arc_kmem_reap_soon().
	*/
	int arc_kmem_cache_reap_retry_ms = 1000;

	/* shift of arc_c for calculating overflow limit in arc_get_data_impl */
	int zfs_arc_overflow_shift = 8;

	/* shift of arc_c for calculating both min and max arc_p */
	int arc_p_min_shift = 4;

	/* log2(fraction of arc to reclaim) */
	int arc_shrink_shift = 7;

	/* percent of pagecache to reclaim arc to */
	#ifdef _KERNEL
	uint_t zfs_arc_pc_percent = 0;
	#endif

	/*
	* log2(fraction of ARC which must be free to allow growing).
	* I.e. If there is less than arc_c >> arc_no_grow_shift free memory,
	* when reading a new block into the ARC, we will evict an equal-sized block
	* from the ARC.
	*
	* This must be less than arc_shrink_shift, so that when we shrink the ARC,
	* we will still not allow it to grow.
	*/
	int arc_no_grow_shift = 5;


	/*
	* minimum lifespan of a prefetch block in clock ticks
	* (initialized in arc_init())
	*/
	static int arc_min_prefetch_ms;
	static int arc_min_prescient_prefetch_ms;

	/*
	* If this percent of memory is free, don't throttle.
	*/
	int arc_lotsfree_percent = 10;

	/*
	* The arc has filled available memory and has now warmed up.
	*/
	boolean_t arc_warm;

	/*
	* These tunables are for performance analysis.
	*/
	unsigned long zfs_arc_max = 0;
	unsigned long zfs_arc_min = 0;
	unsigned long zfs_arc_meta_limit = 0;
	unsigned long zfs_arc_meta_min = 0;
	unsigned long zfs_arc_dnode_limit = 0;
	unsigned long zfs_arc_dnode_reduce_percent = 10;
	int zfs_arc_grow_retry = 0;
	int zfs_arc_shrink_shift = 0;
	int zfs_arc_p_min_shift = 0;
	int zfs_arc_average_blocksize = 8 * 1024; /* 8KB */

	/*
	* ARC dirty data constraints for arc_tempreserve_space() throttle.
	*/
	unsigned long zfs_arc_dirty_limit_percent = 50; /* total dirty data limit */
	unsigned long zfs_arc_anon_limit_percent = 25; /* anon block dirty limit */
	unsigned long zfs_arc_pool_dirty_percent = 20; /* each pool's anon allowance */

	/*
	* Enable or disable compressed arc buffers.
	*/
	int zfs_compressed_arc_enabled = B_TRUE;

	/*
	* ARC will evict meta buffers that exceed arc_meta_limit. This
	* tunable make arc_meta_limit adjustable for different workloads.
	*/
	unsigned long zfs_arc_meta_limit_percent = 75;

	/*
	* Percentage that can be consumed by dnodes of ARC meta buffers.
	*/
	unsigned long zfs_arc_dnode_limit_percent = 10;

	/*
	* These tunables are Linux specific
	*/
	unsigned long zfs_arc_sys_free = 0;
	int zfs_arc_min_prefetch_ms = 0;
	int zfs_arc_min_prescient_prefetch_ms = 0;
	int zfs_arc_p_dampener_disable = 1;
	int zfs_arc_meta_prune = 10000;
	int zfs_arc_meta_strategy = ARC_STRATEGY_META_BALANCED;
	int zfs_arc_meta_adjust_restarts = 4096;
	int zfs_arc_lotsfree_percent = 10;

	/* The 6 states: */
	arc_state_t ARC_anon;
	arc_state_t ARC_mru;
	arc_state_t ARC_mru_ghost;
	arc_state_t ARC_mfu;
	arc_state_t ARC_mfu_ghost;
	arc_state_t ARC_l2c_only;

	arc_stats_t arc_stats = {
	{ "hits", KSTAT_DATA_UINT64 },
	{ "misses", KSTAT_DATA_UINT64 },
	{ "demand_data_hits", KSTAT_DATA_UINT64 },
	{ "demand_data_misses", KSTAT_DATA_UINT64 },
	{ "demand_metadata_hits", KSTAT_DATA_UINT64 },
	{ "demand_metadata_misses", KSTAT_DATA_UINT64 },
	{ "prefetch_data_hits", KSTAT_DATA_UINT64 },
	{ "prefetch_data_misses", KSTAT_DATA_UINT64 },
	{ "prefetch_metadata_hits", KSTAT_DATA_UINT64 },
	{ "prefetch_metadata_misses", KSTAT_DATA_UINT64 },
	{ "mru_hits", KSTAT_DATA_UINT64 },
	{ "mru_ghost_hits", KSTAT_DATA_UINT64 },
	{ "mfu_hits", KSTAT_DATA_UINT64 },
	{ "mfu_ghost_hits", KSTAT_DATA_UINT64 },
	{ "deleted", KSTAT_DATA_UINT64 },
	{ "mutex_miss", KSTAT_DATA_UINT64 },
	{ "access_skip", KSTAT_DATA_UINT64 },
	{ "evict_skip", KSTAT_DATA_UINT64 },
	{ "evict_not_enough", KSTAT_DATA_UINT64 },
	{ "evict_l2_cached", KSTAT_DATA_UINT64 },
	{ "evict_l2_eligible", KSTAT_DATA_UINT64 },
	{ "evict_l2_eligible_mfu", KSTAT_DATA_UINT64 },
	{ "evict_l2_eligible_mru", KSTAT_DATA_UINT64 },
	{ "evict_l2_ineligible", KSTAT_DATA_UINT64 },
	{ "evict_l2_skip", KSTAT_DATA_UINT64 },
	{ "hash_elements", KSTAT_DATA_UINT64 },
	{ "hash_elements_max", KSTAT_DATA_UINT64 },
	{ "hash_collisions", KSTAT_DATA_UINT64 },
	{ "hash_chains", KSTAT_DATA_UINT64 },
	{ "hash_chain_max", KSTAT_DATA_UINT64 },
	{ "p", KSTAT_DATA_UINT64 },
	{ "c", KSTAT_DATA_UINT64 },
	{ "c_min", KSTAT_DATA_UINT64 },
	{ "c_max", KSTAT_DATA_UINT64 },
	{ "size", KSTAT_DATA_UINT64 },
	{ "compressed_size", KSTAT_DATA_UINT64 },
	{ "uncompressed_size", KSTAT_DATA_UINT64 },
	{ "overhead_size", KSTAT_DATA_UINT64 },
	{ "hdr_size", KSTAT_DATA_UINT64 },
	{ "data_size", KSTAT_DATA_UINT64 },
	{ "metadata_size", KSTAT_DATA_UINT64 },
	{ "dbuf_size", KSTAT_DATA_UINT64 },
	{ "dnode_size", KSTAT_DATA_UINT64 },
	{ "bonus_size", KSTAT_DATA_UINT64 },
	#if defined(COMPAT_FREEBSD11)
	{ "other_size", KSTAT_DATA_UINT64 },
	#endif
	{ "anon_size", KSTAT_DATA_UINT64 },
	{ "anon_evictable_data", KSTAT_DATA_UINT64 },
	{ "anon_evictable_metadata", KSTAT_DATA_UINT64 },
	{ "mru_size", KSTAT_DATA_UINT64 },
	{ "mru_evictable_data", KSTAT_DATA_UINT64 },
	{ "mru_evictable_metadata", KSTAT_DATA_UINT64 },
	{ "mru_ghost_size", KSTAT_DATA_UINT64 },
	{ "mru_ghost_evictable_data", KSTAT_DATA_UINT64 },
	{ "mru_ghost_evictable_metadata", KSTAT_DATA_UINT64 },
	{ "mfu_size", KSTAT_DATA_UINT64 },
	{ "mfu_evictable_data", KSTAT_DATA_UINT64 },
	{ "mfu_evictable_metadata", KSTAT_DATA_UINT64 },
	{ "mfu_ghost_size", KSTAT_DATA_UINT64 },
	{ "mfu_ghost_evictable_data", KSTAT_DATA_UINT64 },
	{ "mfu_ghost_evictable_metadata", KSTAT_DATA_UINT64 },
	{ "l2_hits", KSTAT_DATA_UINT64 },
	{ "l2_misses", KSTAT_DATA_UINT64 },
	{ "l2_prefetch_asize", KSTAT_DATA_UINT64 },
	{ "l2_mru_asize", KSTAT_DATA_UINT64 },
	{ "l2_mfu_asize", KSTAT_DATA_UINT64 },
	{ "l2_bufc_data_asize", KSTAT_DATA_UINT64 },
	{ "l2_bufc_metadata_asize", KSTAT_DATA_UINT64 },
	{ "l2_feeds", KSTAT_DATA_UINT64 },
	{ "l2_rw_clash", KSTAT_DATA_UINT64 },
	{ "l2_read_bytes", KSTAT_DATA_UINT64 },
	{ "l2_write_bytes", KSTAT_DATA_UINT64 },
	{ "l2_writes_sent", KSTAT_DATA_UINT64 },
	{ "l2_writes_done", KSTAT_DATA_UINT64 },
	{ "l2_writes_error", KSTAT_DATA_UINT64 },
	{ "l2_writes_lock_retry", KSTAT_DATA_UINT64 },
	{ "l2_evict_lock_retry", KSTAT_DATA_UINT64 },
	{ "l2_evict_reading", KSTAT_DATA_UINT64 },
	{ "l2_evict_l1cached", KSTAT_DATA_UINT64 },
	{ "l2_free_on_write", KSTAT_DATA_UINT64 },
	{ "l2_abort_lowmem", KSTAT_DATA_UINT64 },
	{ "l2_cksum_bad", KSTAT_DATA_UINT64 },
	{ "l2_io_error", KSTAT_DATA_UINT64 },
	{ "l2_size", KSTAT_DATA_UINT64 },
	{ "l2_asize", KSTAT_DATA_UINT64 },
	{ "l2_hdr_size", KSTAT_DATA_UINT64 },
	{ "l2_log_blk_writes", KSTAT_DATA_UINT64 },
	{ "l2_log_blk_avg_asize", KSTAT_DATA_UINT64 },
	{ "l2_log_blk_asize", KSTAT_DATA_UINT64 },
	{ "l2_log_blk_count", KSTAT_DATA_UINT64 },
	{ "l2_data_to_meta_ratio", KSTAT_DATA_UINT64 },
	{ "l2_rebuild_success", KSTAT_DATA_UINT64 },
	{ "l2_rebuild_unsupported", KSTAT_DATA_UINT64 },
	{ "l2_rebuild_io_errors", KSTAT_DATA_UINT64 },
	{ "l2_rebuild_dh_errors", KSTAT_DATA_UINT64 },
	{ "l2_rebuild_cksum_lb_errors", KSTAT_DATA_UINT64 },
	{ "l2_rebuild_lowmem", KSTAT_DATA_UINT64 },
	{ "l2_rebuild_size", KSTAT_DATA_UINT64 },
	{ "l2_rebuild_asize", KSTAT_DATA_UINT64 },
	{ "l2_rebuild_bufs", KSTAT_DATA_UINT64 },
	{ "l2_rebuild_bufs_precached", KSTAT_DATA_UINT64 },
	{ "l2_rebuild_log_blks", KSTAT_DATA_UINT64 },
	{ "memory_throttle_count", KSTAT_DATA_UINT64 },
	{ "memory_direct_count", KSTAT_DATA_UINT64 },
	{ "memory_indirect_count", KSTAT_DATA_UINT64 },
	{ "memory_all_bytes", KSTAT_DATA_UINT64 },
	{ "memory_free_bytes", KSTAT_DATA_UINT64 },
	{ "memory_available_bytes", KSTAT_DATA_INT64 },
	{ "arc_no_grow", KSTAT_DATA_UINT64 },
	{ "arc_tempreserve", KSTAT_DATA_UINT64 },
	{ "arc_loaned_bytes", KSTAT_DATA_UINT64 },
	{ "arc_prune", KSTAT_DATA_UINT64 },
	{ "arc_meta_used", KSTAT_DATA_UINT64 },
	{ "arc_meta_limit", KSTAT_DATA_UINT64 },
	{ "arc_dnode_limit", KSTAT_DATA_UINT64 },
	{ "arc_meta_max", KSTAT_DATA_UINT64 },
	{ "arc_meta_min", KSTAT_DATA_UINT64 },
	{ "async_upgrade_sync", KSTAT_DATA_UINT64 },
	{ "demand_hit_predictive_prefetch", KSTAT_DATA_UINT64 },
	{ "demand_hit_prescient_prefetch", KSTAT_DATA_UINT64 },
	{ "arc_need_free", KSTAT_DATA_UINT64 },
	{ "arc_sys_free", KSTAT_DATA_UINT64 },
	{ "arc_raw_size", KSTAT_DATA_UINT64 },
	{ "cached_only_in_progress", KSTAT_DATA_UINT64 },
	{ "abd_chunk_waste_size", KSTAT_DATA_UINT64 },
	};

	#define ARCSTAT_MAX(stat, val) { \
	uint64_t m; \
	while ((val) > (m = arc_stats.stat.value.ui64) && \
	(m != atomic_cas_64(&arc_stats.stat.value.ui64, m, (val)))) \
	continue; \
	}

	#define ARCSTAT_MAXSTAT(stat) \
	ARCSTAT_MAX(stat##_max, arc_stats.stat.value.ui64)

	/*
	* We define a macro to allow ARC hits/misses to be easily broken down by
	* two separate conditions, giving a total of four different subtypes for
	* each of hits and misses (so eight statistics total).
	*/
	#define ARCSTAT_CONDSTAT(cond1, stat1, notstat1, cond2, stat2, notstat2, stat) \
	if (cond1) { \
	if (cond2) { \
	ARCSTAT_BUMP(arcstat_##stat1##_##stat2##_##stat); \
	} else { \
	ARCSTAT_BUMP(arcstat_##stat1##_##notstat2##_##stat); \
	} \
	} else { \
	if (cond2) { \
	ARCSTAT_BUMP(arcstat_##notstat1##_##stat2##_##stat); \
	} else { \
	ARCSTAT_BUMP(arcstat_##notstat1##_##notstat2##_##stat);\
	} \
	}

	/*
	* This macro allows us to use kstats as floating averages. Each time we
	* update this kstat, we first factor it and the update value by
	* ARCSTAT_AVG_FACTOR to shrink the new value's contribution to the overall
	* average. This macro assumes that integer loads and stores are atomic, but
	* is not safe for multiple writers updating the kstat in parallel (only the
	* last writer's update will remain).
	*/
	#define ARCSTAT_F_AVG_FACTOR 3
	#define ARCSTAT_F_AVG(stat, value) \
	do { \
	uint64_t x = ARCSTAT(stat); \
	x = x - x / ARCSTAT_F_AVG_FACTOR + \
	(value) / ARCSTAT_F_AVG_FACTOR; \
	ARCSTAT(stat) = x; \
	_NOTE(CONSTCOND) \
	} while (0)

	kstat_t *arc_ksp;
	static arc_state_t *arc_anon;
	static arc_state_t *arc_mru_ghost;
	static arc_state_t *arc_mfu_ghost;
	static arc_state_t *arc_l2c_only;

	arc_state_t *arc_mru;
	arc_state_t *arc_mfu;

	/*
	* There are several ARC variables that are critical to export as kstats --
	* but we don't want to have to grovel around in the kstat whenever we wish to
	* manipulate them. For these variables, we therefore define them to be in
	* terms of the statistic variable. This assures that we are not introducing
	* the possibility of inconsistency by having shadow copies of the variables,
	* while still allowing the code to be readable.
	*/
	#define arc_tempreserve ARCSTAT(arcstat_tempreserve)
	#define arc_loaned_bytes ARCSTAT(arcstat_loaned_bytes)
	#define arc_meta_limit ARCSTAT(arcstat_meta_limit) /* max size for metadata */
	/* max size for dnodes */
	#define arc_dnode_size_limit ARCSTAT(arcstat_dnode_limit)
	#define arc_meta_min ARCSTAT(arcstat_meta_min) /* min size for metadata */
	#define arc_meta_max ARCSTAT(arcstat_meta_max) /* max size of metadata */
	#define arc_need_free ARCSTAT(arcstat_need_free) /* waiting to be evicted */

	/* size of all b_rabd's in entire arc */
	#define arc_raw_size ARCSTAT(arcstat_raw_size)
	/* compressed size of entire arc */
	#define arc_compressed_size ARCSTAT(arcstat_compressed_size)
	/* uncompressed size of entire arc */
	#define arc_uncompressed_size ARCSTAT(arcstat_uncompressed_size)
	/* number of bytes in the arc from arc_buf_t's */
	#define arc_overhead_size ARCSTAT(arcstat_overhead_size)

	/*
	* There are also some ARC variables that we want to export, but that are
	* updated so often that having the canonical representation be the statistic
	* variable causes a performance bottleneck. We want to use aggsum_t's for these
	* instead, but still be able to export the kstat in the same way as before.
	* The solution is to always use the aggsum version, except in the kstat update
	* callback.
	*/
	aggsum_t arc_size;
	aggsum_t arc_meta_used;
	wmsum_t astat_data_size;
	wmsum_t astat_metadata_size;
	wmsum_t astat_dbuf_size;
	aggsum_t astat_dnode_size;
	wmsum_t astat_bonus_size;
	wmsum_t astat_hdr_size;
	aggsum_t astat_l2_hdr_size;
	wmsum_t astat_abd_chunk_waste_size;

	hrtime_t arc_growtime;
	list_t arc_prune_list;
	kmutex_t arc_prune_mtx;
	taskq_t *arc_prune_taskq;

	#define GHOST_STATE(state) \
	((state) == arc_mru_ghost \|\| (state) == arc_mfu_ghost \|\| \
	(state) == arc_l2c_only)

	#define HDR_IN_HASH_TABLE(hdr) ((hdr)->b_flags & ARC_FLAG_IN_HASH_TABLE)
	#define HDR_IO_IN_PROGRESS(hdr) ((hdr)->b_flags & ARC_FLAG_IO_IN_PROGRESS)
	#define HDR_IO_ERROR(hdr) ((hdr)->b_flags & ARC_FLAG_IO_ERROR)
	#define HDR_PREFETCH(hdr) ((hdr)->b_flags & ARC_FLAG_PREFETCH)
	#define HDR_PRESCIENT_PREFETCH(hdr) \
	((hdr)->b_flags & ARC_FLAG_PRESCIENT_PREFETCH)
	#define HDR_COMPRESSION_ENABLED(hdr) \
	((hdr)->b_flags & ARC_FLAG_COMPRESSED_ARC)

	#define HDR_L2CACHE(hdr) ((hdr)->b_flags & ARC_FLAG_L2CACHE)
	#define HDR_L2_READING(hdr) \
	(((hdr)->b_flags & ARC_FLAG_IO_IN_PROGRESS) && \
	((hdr)->b_flags & ARC_FLAG_HAS_L2HDR))
	#define HDR_L2_WRITING(hdr) ((hdr)->b_flags & ARC_FLAG_L2_WRITING)
	#define HDR_L2_EVICTED(hdr) ((hdr)->b_flags & ARC_FLAG_L2_EVICTED)
	#define HDR_L2_WRITE_HEAD(hdr) ((hdr)->b_flags & ARC_FLAG_L2_WRITE_HEAD)
	#define HDR_PROTECTED(hdr) ((hdr)->b_flags & ARC_FLAG_PROTECTED)
	#define HDR_NOAUTH(hdr) ((hdr)->b_flags & ARC_FLAG_NOAUTH)
	#define HDR_SHARED_DATA(hdr) ((hdr)->b_flags & ARC_FLAG_SHARED_DATA)

	#define HDR_ISTYPE_METADATA(hdr) \
	((hdr)->b_flags & ARC_FLAG_BUFC_METADATA)
	#define HDR_ISTYPE_DATA(hdr) (!HDR_ISTYPE_METADATA(hdr))

	#define HDR_HAS_L1HDR(hdr) ((hdr)->b_flags & ARC_FLAG_HAS_L1HDR)
	#define HDR_HAS_L2HDR(hdr) ((hdr)->b_flags & ARC_FLAG_HAS_L2HDR)
	#define HDR_HAS_RABD(hdr) \
	(HDR_HAS_L1HDR(hdr) && HDR_PROTECTED(hdr) && \
	(hdr)->b_crypt_hdr.b_rabd != NULL)
	#define HDR_ENCRYPTED(hdr) \
	(HDR_PROTECTED(hdr) && DMU_OT_IS_ENCRYPTED((hdr)->b_crypt_hdr.b_ot))
	#define HDR_AUTHENTICATED(hdr) \
	(HDR_PROTECTED(hdr) && !DMU_OT_IS_ENCRYPTED((hdr)->b_crypt_hdr.b_ot))

	/* For storing compression mode in b_flags */
	#define HDR_COMPRESS_OFFSET (highbit64(ARC_FLAG_COMPRESS_0) - 1)

	#define HDR_GET_COMPRESS(hdr) ((enum zio_compress)BF32_GET((hdr)->b_flags, \
	HDR_COMPRESS_OFFSET, SPA_COMPRESSBITS))
	#define HDR_SET_COMPRESS(hdr, cmp) BF32_SET((hdr)->b_flags, \
	HDR_COMPRESS_OFFSET, SPA_COMPRESSBITS, (cmp));

	#define ARC_BUF_LAST(buf) ((buf)->b_next == NULL)
	#define ARC_BUF_SHARED(buf) ((buf)->b_flags & ARC_BUF_FLAG_SHARED)
	#define ARC_BUF_COMPRESSED(buf) ((buf)->b_flags & ARC_BUF_FLAG_COMPRESSED)
	#define ARC_BUF_ENCRYPTED(buf) ((buf)->b_flags & ARC_BUF_FLAG_ENCRYPTED)

	/*
	* Other sizes
	*/

	#define HDR_FULL_CRYPT_SIZE ((int64_t)sizeof (arc_buf_hdr_t))
	#define HDR_FULL_SIZE ((int64_t)offsetof(arc_buf_hdr_t, b_crypt_hdr))
	#define HDR_L2ONLY_SIZE ((int64_t)offsetof(arc_buf_hdr_t, b_l1hdr))

	/*
	* Hash table routines
	*/

	#define HT_LOCK_ALIGN 64
	#define HT_LOCK_PAD (P2NPHASE(sizeof (kmutex_t), (HT_LOCK_ALIGN)))

	struct ht_lock {
	kmutex_t ht_lock;
	#ifdef _KERNEL
	unsigned char pad[HT_LOCK_PAD];
	#endif
	};

	#define BUF_LOCKS 8192
	typedef struct buf_hash_table {
	uint64_t ht_mask;
	arc_buf_hdr_t **ht_table;
	struct ht_lock ht_locks[BUF_LOCKS];
	} buf_hash_table_t;

	static buf_hash_table_t buf_hash_table;

	#define BUF_HASH_INDEX(spa, dva, birth) \
	(buf_hash(spa, dva, birth) & buf_hash_table.ht_mask)
	#define BUF_HASH_LOCK_NTRY(idx) (buf_hash_table.ht_locks[idx & (BUF_LOCKS-1)])
	#define BUF_HASH_LOCK(idx) (&(BUF_HASH_LOCK_NTRY(idx).ht_lock))
	#define HDR_LOCK(hdr) \
	(BUF_HASH_LOCK(BUF_HASH_INDEX(hdr->b_spa, &hdr->b_dva, hdr->b_birth)))

	uint64_t zfs_crc64_table[256];

	/*
	* Level 2 ARC
	*/

	#define L2ARC_WRITE_SIZE (8 * 1024 * 1024) /* initial write max */
	#define L2ARC_HEADROOM 2 /* num of writes */

	/*
	* If we discover during ARC scan any buffers to be compressed, we boost
	* our headroom for the next scanning cycle by this percentage multiple.
	*/
	#define L2ARC_HEADROOM_BOOST 200
	#define L2ARC_FEED_SECS 1 /* caching interval secs */
	#define L2ARC_FEED_MIN_MS 200 /* min caching interval ms */

	/*
	* We can feed L2ARC from two states of ARC buffers, mru and mfu,
	* and each of the state has two types: data and metadata.
	*/
	#define L2ARC_FEED_TYPES 4

	#define l2arc_writes_sent ARCSTAT(arcstat_l2_writes_sent)
	#define l2arc_writes_done ARCSTAT(arcstat_l2_writes_done)

	/* L2ARC Performance Tunables */
	unsigned long l2arc_write_max = L2ARC_WRITE_SIZE; /* def max write size */
	unsigned long l2arc_write_boost = L2ARC_WRITE_SIZE; /* extra warmup write */
	unsigned long l2arc_headroom = L2ARC_HEADROOM; /* # of dev writes */
	unsigned long l2arc_headroom_boost = L2ARC_HEADROOM_BOOST;
	unsigned long l2arc_feed_secs = L2ARC_FEED_SECS; /* interval seconds */
	unsigned long l2arc_feed_min_ms = L2ARC_FEED_MIN_MS; /* min interval msecs */
	int l2arc_noprefetch = B_TRUE; /* don't cache prefetch bufs */
	int l2arc_feed_again = B_TRUE; /* turbo warmup */
	int l2arc_norw = B_FALSE; /* no reads during writes */
	int l2arc_meta_percent = 33; /* limit on headers size */

	/*
	* L2ARC Internals
	*/
	static list_t L2ARC_dev_list; /* device list */
	static list_t l2arc_dev_list; / device list pointer */
	static kmutex_t l2arc_dev_mtx; /* device list mutex */
	static l2arc_dev_t l2arc_dev_last; / last device used */
	static list_t L2ARC_free_on_write; /* free after write buf list */
	static list_t l2arc_free_on_write; / free after write list ptr */
	static kmutex_t l2arc_free_on_write_mtx; /* mutex for list */
	static uint64_t l2arc_ndev; /* number of devices */

	typedef struct l2arc_read_callback {
	arc_buf_hdr_t l2rcb_hdr; / read header */
	blkptr_t l2rcb_bp; /* original blkptr */
	zbookmark_phys_t l2rcb_zb; /* original bookmark */
	int l2rcb_flags; /* original flags */
	abd_t l2rcb_abd; / temporary buffer */
	} l2arc_read_callback_t;

	typedef struct l2arc_data_free {
	/* protected by l2arc_free_on_write_mtx */
	abd_t *l2df_abd;
	size_t l2df_size;
	arc_buf_contents_t l2df_type;
	list_node_t l2df_list_node;
	} l2arc_data_free_t;

	typedef enum arc_fill_flags {
	ARC_FILL_LOCKED = 1 << 0, /* hdr lock is held */
	ARC_FILL_COMPRESSED = 1 << 1, /* fill with compressed data */
	ARC_FILL_ENCRYPTED = 1 << 2, /* fill with encrypted data */
	ARC_FILL_NOAUTH = 1 << 3, /* don't attempt to authenticate */
	ARC_FILL_IN_PLACE = 1 << 4 /* fill in place (special case) */
	} arc_fill_flags_t;

	static kmutex_t l2arc_feed_thr_lock;
	static kcondvar_t l2arc_feed_thr_cv;
	static uint8_t l2arc_thread_exit;

	static kmutex_t l2arc_rebuild_thr_lock;
	static kcondvar_t l2arc_rebuild_thr_cv;

	enum arc_hdr_alloc_flags {
	ARC_HDR_ALLOC_RDATA = 0x1,
	ARC_HDR_DO_ADAPT = 0x2,
	};


	static abd_t arc_get_data_abd(arc_buf_hdr_t , uint64_t, void *, boolean_t);
	static void arc_get_data_buf(arc_buf_hdr_t , uint64_t, void *);
	static void arc_get_data_impl(arc_buf_hdr_t , uint64_t, void , boolean_t);
	static void arc_free_data_abd(arc_buf_hdr_t , abd_t , uint64_t, void *);
	static void arc_free_data_buf(arc_buf_hdr_t , void , uint64_t, void *);
	static void arc_free_data_impl(arc_buf_hdr_t hdr, uint64_t size, void tag);
	static void arc_hdr_free_abd(arc_buf_hdr_t *, boolean_t);
	static void arc_hdr_alloc_abd(arc_buf_hdr_t *, int);
	static void arc_access(arc_buf_hdr_t , kmutex_t );
	static void arc_buf_watch(arc_buf_t *);

	static arc_buf_contents_t arc_buf_type(arc_buf_hdr_t *);
	static uint32_t arc_bufc_to_flags(arc_buf_contents_t);
	static inline void arc_hdr_set_flags(arc_buf_hdr_t *hdr, arc_flags_t flags);
	static inline void arc_hdr_clear_flags(arc_buf_hdr_t *hdr, arc_flags_t flags);

	static boolean_t l2arc_write_eligible(uint64_t, arc_buf_hdr_t *);
	static void l2arc_read_done(zio_t *);
	static void l2arc_do_free_on_write(void);
	static void l2arc_hdr_arcstats_update(arc_buf_hdr_t *hdr, boolean_t incr,
	boolean_t state_only);

	#define l2arc_hdr_arcstats_increment(hdr) \
	l2arc_hdr_arcstats_update((hdr), B_TRUE, B_FALSE)
	#define l2arc_hdr_arcstats_decrement(hdr) \
	l2arc_hdr_arcstats_update((hdr), B_FALSE, B_FALSE)
	#define l2arc_hdr_arcstats_increment_state(hdr) \
	l2arc_hdr_arcstats_update((hdr), B_TRUE, B_TRUE)
	#define l2arc_hdr_arcstats_decrement_state(hdr) \
	l2arc_hdr_arcstats_update((hdr), B_FALSE, B_TRUE)

	/*
	* l2arc_mfuonly : A ZFS module parameter that controls whether only MFU
	* metadata and data are cached from ARC into L2ARC.
	*/
	int l2arc_mfuonly = 0;

	/*
	* L2ARC TRIM
	* l2arc_trim_ahead : A ZFS module parameter that controls how much ahead of
	* the current write size (l2arc_write_max) we should TRIM if we
	* have filled the device. It is defined as a percentage of the
	* write size. If set to 100 we trim twice the space required to
	* accommodate upcoming writes. A minimum of 64MB will be trimmed.
	* It also enables TRIM of the whole L2ARC device upon creation or
	* addition to an existing pool or if the header of the device is
	* invalid upon importing a pool or onlining a cache device. The
	* default is 0, which disables TRIM on L2ARC altogether as it can
	* put significant stress on the underlying storage devices. This
	* will vary depending of how well the specific device handles
	* these commands.
	*/
	unsigned long l2arc_trim_ahead = 0;

	/*
	* Performance tuning of L2ARC persistence:
	*
	* l2arc_rebuild_enabled : A ZFS module parameter that controls whether adding
	* an L2ARC device (either at pool import or later) will attempt
	* to rebuild L2ARC buffer contents.
	* l2arc_rebuild_blocks_min_l2size : A ZFS module parameter that controls
	* whether log blocks are written to the L2ARC device. If the L2ARC
	* device is less than 1GB, the amount of data l2arc_evict()
	* evicts is significant compared to the amount of restored L2ARC
	* data. In this case do not write log blocks in L2ARC in order
	* not to waste space.
	*/
	int l2arc_rebuild_enabled = B_TRUE;
	unsigned long l2arc_rebuild_blocks_min_l2size = 1024 * 1024 * 1024;

	/* L2ARC persistence rebuild control routines. */
	void l2arc_rebuild_vdev(vdev_t *vd, boolean_t reopen);
	static void l2arc_dev_rebuild_thread(void *arg);
	static int l2arc_rebuild(l2arc_dev_t *dev);

	/* L2ARC persistence read I/O routines. */
	static int l2arc_dev_hdr_read(l2arc_dev_t *dev);
	static int l2arc_log_blk_read(l2arc_dev_t *dev,
	const l2arc_log_blkptr_t this_lp, const l2arc_log_blkptr_t next_lp,
	l2arc_log_blk_phys_t this_lb, l2arc_log_blk_phys_t next_lb,
	zio_t this_io, zio_t *next_io);
	static zio_t l2arc_log_blk_fetch(vdev_t vd,
	const l2arc_log_blkptr_t lp, l2arc_log_blk_phys_t lb);
	static void l2arc_log_blk_fetch_abort(zio_t *zio);

	/* L2ARC persistence block restoration routines. */
	static void l2arc_log_blk_restore(l2arc_dev_t *dev,
	const l2arc_log_blk_phys_t *lb, uint64_t lb_asize);
	static void l2arc_hdr_restore(const l2arc_log_ent_phys_t *le,
	l2arc_dev_t *dev);

	/* L2ARC persistence write I/O routines. */
	static void l2arc_log_blk_commit(l2arc_dev_t dev, zio_t pio,
	l2arc_write_callback_t *cb);

	/* L2ARC persistence auxiliary routines. */
	boolean_t l2arc_log_blkptr_valid(l2arc_dev_t *dev,
	const l2arc_log_blkptr_t *lbp);
	static boolean_t l2arc_log_blk_insert(l2arc_dev_t *dev,
	const arc_buf_hdr_t *ab);
	boolean_t l2arc_range_check_overlap(uint64_t bottom,
	uint64_t top, uint64_t check);
	static void l2arc_blk_fetch_done(zio_t *zio);
	static inline uint64_t
	l2arc_log_blk_overhead(uint64_t write_sz, l2arc_dev_t *dev);

	/*
	* We use Cityhash for this. It's fast, and has good hash properties without
	* requiring any large static buffers.
	*/
	static uint64_t
	buf_hash(uint64_t spa, const dva_t *dva, uint64_t birth)
	{
	return (cityhash4(spa, dva->dva_word[0], dva->dva_word[1], birth));
	}

	#define HDR_EMPTY(hdr) \
	((hdr)->b_dva.dva_word[0] == 0 && \
	(hdr)->b_dva.dva_word[1] == 0)

	#define HDR_EMPTY_OR_LOCKED(hdr) \
	(HDR_EMPTY(hdr) \|\| MUTEX_HELD(HDR_LOCK(hdr)))

	#define HDR_EQUAL(spa, dva, birth, hdr) \
	((hdr)->b_dva.dva_word[0] == (dva)->dva_word[0]) && \
	((hdr)->b_dva.dva_word[1] == (dva)->dva_word[1]) && \
	((hdr)->b_birth == birth) && ((hdr)->b_spa == spa)

	static void
	buf_discard_identity(arc_buf_hdr_t *hdr)
	{
	hdr->b_dva.dva_word[0] = 0;
	hdr->b_dva.dva_word[1] = 0;
	hdr->b_birth = 0;
	}

	static arc_buf_hdr_t *
	buf_hash_find(uint64_t spa, const blkptr_t bp, kmutex_t *lockp)
	{
	const dva_t *dva = BP_IDENTITY(bp);
	uint64_t birth = BP_PHYSICAL_BIRTH(bp);
	uint64_t idx = BUF_HASH_INDEX(spa, dva, birth);
	kmutex_t *hash_lock = BUF_HASH_LOCK(idx);
	arc_buf_hdr_t *hdr;

	mutex_enter(hash_lock);
	for (hdr = buf_hash_table.ht_table[idx]; hdr != NULL;
	hdr = hdr->b_hash_next) {
	if (HDR_EQUAL(spa, dva, birth, hdr)) {
	*lockp = hash_lock;
	return (hdr);
	}
	}
	mutex_exit(hash_lock);
	*lockp = NULL;
	return (NULL);
	}

	/*
	* Insert an entry into the hash table. If there is already an element
	* equal to elem in the hash table, then the already existing element
	* will be returned and the new element will not be inserted.
	* Otherwise returns NULL.
	* If lockp == NULL, the caller is assumed to already hold the hash lock.
	*/
	static arc_buf_hdr_t *
	buf_hash_insert(arc_buf_hdr_t hdr, kmutex_t *lockp)
	{
	uint64_t idx = BUF_HASH_INDEX(hdr->b_spa, &hdr->b_dva, hdr->b_birth);
	kmutex_t *hash_lock = BUF_HASH_LOCK(idx);
	arc_buf_hdr_t *fhdr;
	uint32_t i;

	ASSERT(!DVA_IS_EMPTY(&hdr->b_dva));
	ASSERT(hdr->b_birth != 0);
	ASSERT(!HDR_IN_HASH_TABLE(hdr));

	if (lockp != NULL) {
	*lockp = hash_lock;
	mutex_enter(hash_lock);
	} else {
	ASSERT(MUTEX_HELD(hash_lock));
	}

	for (fhdr = buf_hash_table.ht_table[idx], i = 0; fhdr != NULL;
	fhdr = fhdr->b_hash_next, i++) {
	if (HDR_EQUAL(hdr->b_spa, &hdr->b_dva, hdr->b_birth, fhdr))
	return (fhdr);
	}

	hdr->b_hash_next = buf_hash_table.ht_table[idx];
	buf_hash_table.ht_table[idx] = hdr;
	arc_hdr_set_flags(hdr, ARC_FLAG_IN_HASH_TABLE);

	/* collect some hash table performance data */
	if (i > 0) {
	ARCSTAT_BUMP(arcstat_hash_collisions);
	if (i == 1)
	ARCSTAT_BUMP(arcstat_hash_chains);

	ARCSTAT_MAX(arcstat_hash_chain_max, i);
	}

	ARCSTAT_BUMP(arcstat_hash_elements);
	ARCSTAT_MAXSTAT(arcstat_hash_elements);

	return (NULL);
	}

	static void
	buf_hash_remove(arc_buf_hdr_t *hdr)
	{
	arc_buf_hdr_t fhdr, *hdrp;
	uint64_t idx = BUF_HASH_INDEX(hdr->b_spa, &hdr->b_dva, hdr->b_birth);

	ASSERT(MUTEX_HELD(BUF_HASH_LOCK(idx)));
	ASSERT(HDR_IN_HASH_TABLE(hdr));

	hdrp = &buf_hash_table.ht_table[idx];
	while ((fhdr = *hdrp) != hdr) {
	ASSERT3P(fhdr, !=, NULL);
	hdrp = &fhdr->b_hash_next;
	}
	*hdrp = hdr->b_hash_next;
	hdr->b_hash_next = NULL;
	arc_hdr_clear_flags(hdr, ARC_FLAG_IN_HASH_TABLE);

	/* collect some hash table performance data */
	ARCSTAT_BUMPDOWN(arcstat_hash_elements);

	if (buf_hash_table.ht_table[idx] &&
	buf_hash_table.ht_table[idx]->b_hash_next == NULL)
	ARCSTAT_BUMPDOWN(arcstat_hash_chains);
	}

	/*
	* Global data structures and functions for the buf kmem cache.
	*/

	static kmem_cache_t *hdr_full_cache;
	static kmem_cache_t *hdr_full_crypt_cache;
	static kmem_cache_t *hdr_l2only_cache;
	static kmem_cache_t *buf_cache;

	static void
	buf_fini(void)
	{
	int i;

	#if defined(_KERNEL)
	/*
	* Large allocations which do not require contiguous pages
	* should be using vmem_free() in the linux kernel\
	*/
	vmem_free(buf_hash_table.ht_table,
	(buf_hash_table.ht_mask + 1) * sizeof (void *));
	#else
	kmem_free(buf_hash_table.ht_table,
	(buf_hash_table.ht_mask + 1) * sizeof (void *));
	#endif
	for (i = 0; i < BUF_LOCKS; i++)
	mutex_destroy(&buf_hash_table.ht_locks[i].ht_lock);
	kmem_cache_destroy(hdr_full_cache);
	kmem_cache_destroy(hdr_full_crypt_cache);
	kmem_cache_destroy(hdr_l2only_cache);
	kmem_cache_destroy(buf_cache);
	}

	/*
	* Constructor callback - called when the cache is empty
	* and a new buf is requested.
	*/
	/* ARGSUSED */
	static int
	hdr_full_cons(void vbuf, void unused, int kmflag)
	{
	arc_buf_hdr_t *hdr = vbuf;

	bzero(hdr, HDR_FULL_SIZE);
	hdr->b_l1hdr.b_byteswap = DMU_BSWAP_NUMFUNCS;
	cv_init(&hdr->b_l1hdr.b_cv, NULL, CV_DEFAULT, NULL);
	zfs_refcount_create(&hdr->b_l1hdr.b_refcnt);
	mutex_init(&hdr->b_l1hdr.b_freeze_lock, NULL, MUTEX_DEFAULT, NULL);
	list_link_init(&hdr->b_l1hdr.b_arc_node);
	list_link_init(&hdr->b_l2hdr.b_l2node);
	multilist_link_init(&hdr->b_l1hdr.b_arc_node);
	arc_space_consume(HDR_FULL_SIZE, ARC_SPACE_HDRS);

	return (0);
	}

	/* ARGSUSED */
	static int
	hdr_full_crypt_cons(void vbuf, void unused, int kmflag)
	{
	arc_buf_hdr_t *hdr = vbuf;

	hdr_full_cons(vbuf, unused, kmflag);
	bzero(&hdr->b_crypt_hdr, sizeof (hdr->b_crypt_hdr));
	arc_space_consume(sizeof (hdr->b_crypt_hdr), ARC_SPACE_HDRS);

	return (0);
	}

	/* ARGSUSED */
	static int
	hdr_l2only_cons(void vbuf, void unused, int kmflag)
	{
	arc_buf_hdr_t *hdr = vbuf;

	bzero(hdr, HDR_L2ONLY_SIZE);
	arc_space_consume(HDR_L2ONLY_SIZE, ARC_SPACE_L2HDRS);

	return (0);
	}

	/* ARGSUSED */
	static int
	buf_cons(void vbuf, void unused, int kmflag)
	{
	arc_buf_t *buf = vbuf;

	bzero(buf, sizeof (arc_buf_t));
	mutex_init(&buf->b_evict_lock, NULL, MUTEX_DEFAULT, NULL);
	arc_space_consume(sizeof (arc_buf_t), ARC_SPACE_HDRS);

	return (0);
	}

	/*
	* Destructor callback - called when a cached buf is
	* no longer required.
	*/
	/* ARGSUSED */
	static void
	hdr_full_dest(void vbuf, void unused)
	{
	arc_buf_hdr_t *hdr = vbuf;

	ASSERT(HDR_EMPTY(hdr));
	cv_destroy(&hdr->b_l1hdr.b_cv);
	zfs_refcount_destroy(&hdr->b_l1hdr.b_refcnt);
	mutex_destroy(&hdr->b_l1hdr.b_freeze_lock);
	ASSERT(!multilist_link_active(&hdr->b_l1hdr.b_arc_node));
	arc_space_return(HDR_FULL_SIZE, ARC_SPACE_HDRS);
	}

	/* ARGSUSED */
	static void
	hdr_full_crypt_dest(void vbuf, void unused)
	{
	arc_buf_hdr_t *hdr = vbuf;

	hdr_full_dest(vbuf, unused);
	arc_space_return(sizeof (hdr->b_crypt_hdr), ARC_SPACE_HDRS);
	}

	/* ARGSUSED */
	static void
	hdr_l2only_dest(void vbuf, void unused)
	{
	arc_buf_hdr_t *hdr __maybe_unused = vbuf;

	ASSERT(HDR_EMPTY(hdr));
	arc_space_return(HDR_L2ONLY_SIZE, ARC_SPACE_L2HDRS);
	}

	/* ARGSUSED */
	static void
	buf_dest(void vbuf, void unused)
	{
	arc_buf_t *buf = vbuf;

	mutex_destroy(&buf->b_evict_lock);
	arc_space_return(sizeof (arc_buf_t), ARC_SPACE_HDRS);
	}

	static void
	buf_init(void)
	{
	uint64_t *ct = NULL;
	uint64_t hsize = 1ULL << 12;
	int i, j;

	/*
	* The hash table is big enough to fill all of physical memory
	* with an average block size of zfs_arc_average_blocksize (default 8K).
	* By default, the table will take up
	* totalmem * sizeof(void*) / 8K (1MB per GB with 8-byte pointers).
	*/
	while (hsize * zfs_arc_average_blocksize < arc_all_memory())
	hsize <<= 1;
	retry:
	buf_hash_table.ht_mask = hsize - 1;
	#if defined(_KERNEL)
	/*
	* Large allocations which do not require contiguous pages
	* should be using vmem_alloc() in the linux kernel
	*/
	buf_hash_table.ht_table =
	vmem_zalloc(hsize * sizeof (void*), KM_SLEEP);
	#else
	buf_hash_table.ht_table =
	kmem_zalloc(hsize * sizeof (void*), KM_NOSLEEP);
	#endif
	if (buf_hash_table.ht_table == NULL) {
	ASSERT(hsize > (1ULL << 8));
	hsize >>= 1;
	goto retry;
	}

	hdr_full_cache = kmem_cache_create("arc_buf_hdr_t_full", HDR_FULL_SIZE,
	0, hdr_full_cons, hdr_full_dest, NULL, NULL, NULL, 0);
	hdr_full_crypt_cache = kmem_cache_create("arc_buf_hdr_t_full_crypt",
	HDR_FULL_CRYPT_SIZE, 0, hdr_full_crypt_cons, hdr_full_crypt_dest,
	NULL, NULL, NULL, 0);
	hdr_l2only_cache = kmem_cache_create("arc_buf_hdr_t_l2only",
	HDR_L2ONLY_SIZE, 0, hdr_l2only_cons, hdr_l2only_dest, NULL,
	NULL, NULL, 0);
	buf_cache = kmem_cache_create("arc_buf_t", sizeof (arc_buf_t),
	0, buf_cons, buf_dest, NULL, NULL, NULL, 0);

	for (i = 0; i < 256; i++)
	for (ct = zfs_crc64_table + i, *ct = i, j = 8; j > 0; j--)
	ct = (ct >> 1) ^ (-(*ct & 1) & ZFS_CRC64_POLY);

	for (i = 0; i < BUF_LOCKS; i++) {
	mutex_init(&buf_hash_table.ht_locks[i].ht_lock,
	NULL, MUTEX_DEFAULT, NULL);
	}
	}

	#define ARC_MINTIME (hz>>4) /* 62 ms */

	/*
	* This is the size that the buf occupies in memory. If the buf is compressed,
	* it will correspond to the compressed size. You should use this method of
	* getting the buf size unless you explicitly need the logical size.
	*/
	uint64_t
	arc_buf_size(arc_buf_t *buf)
	{
	return (ARC_BUF_COMPRESSED(buf) ?
	HDR_GET_PSIZE(buf->b_hdr) : HDR_GET_LSIZE(buf->b_hdr));
	}

	uint64_t
	arc_buf_lsize(arc_buf_t *buf)
	{
	return (HDR_GET_LSIZE(buf->b_hdr));
	}

	/*
	* This function will return B_TRUE if the buffer is encrypted in memory.
	* This buffer can be decrypted by calling arc_untransform().
	*/
	boolean_t
	arc_is_encrypted(arc_buf_t *buf)
	{
	return (ARC_BUF_ENCRYPTED(buf) != 0);
	}

	/*
	* Returns B_TRUE if the buffer represents data that has not had its MAC
	* verified yet.
	*/
	boolean_t
	arc_is_unauthenticated(arc_buf_t *buf)
	{
	return (HDR_NOAUTH(buf->b_hdr) != 0);
	}

	void
	arc_get_raw_params(arc_buf_t buf, boolean_t byteorder, uint8_t *salt,
	uint8_t iv, uint8_t mac)
	{
	arc_buf_hdr_t *hdr = buf->b_hdr;

	ASSERT(HDR_PROTECTED(hdr));

	bcopy(hdr->b_crypt_hdr.b_salt, salt, ZIO_DATA_SALT_LEN);
	bcopy(hdr->b_crypt_hdr.b_iv, iv, ZIO_DATA_IV_LEN);
	bcopy(hdr->b_crypt_hdr.b_mac, mac, ZIO_DATA_MAC_LEN);
	*byteorder = (hdr->b_l1hdr.b_byteswap == DMU_BSWAP_NUMFUNCS) ?
	ZFS_HOST_BYTEORDER : !ZFS_HOST_BYTEORDER;
	}

	/*
	* Indicates how this buffer is compressed in memory. If it is not compressed
	* the value will be ZIO_COMPRESS_OFF. It can be made normally readable with
	* arc_untransform() as long as it is also unencrypted.
	*/
	enum zio_compress
	arc_get_compression(arc_buf_t *buf)
	{
	return (ARC_BUF_COMPRESSED(buf) ?
	HDR_GET_COMPRESS(buf->b_hdr) : ZIO_COMPRESS_OFF);
	}

	/*
	* Return the compression algorithm used to store this data in the ARC. If ARC
	* compression is enabled or this is an encrypted block, this will be the same
	* as what's used to store it on-disk. Otherwise, this will be ZIO_COMPRESS_OFF.
	*/
	static inline enum zio_compress
	arc_hdr_get_compress(arc_buf_hdr_t *hdr)
	{
	return (HDR_COMPRESSION_ENABLED(hdr) ?
	HDR_GET_COMPRESS(hdr) : ZIO_COMPRESS_OFF);
	}

	uint8_t
	arc_get_complevel(arc_buf_t *buf)
	{
	return (buf->b_hdr->b_complevel);
	}

	static inline boolean_t
	arc_buf_is_shared(arc_buf_t *buf)
	{
	boolean_t shared = (buf->b_data != NULL &&
	buf->b_hdr->b_l1hdr.b_pabd != NULL &&
	abd_is_linear(buf->b_hdr->b_l1hdr.b_pabd) &&
	buf->b_data == abd_to_buf(buf->b_hdr->b_l1hdr.b_pabd));
	IMPLY(shared, HDR_SHARED_DATA(buf->b_hdr));
	IMPLY(shared, ARC_BUF_SHARED(buf));
	IMPLY(shared, ARC_BUF_COMPRESSED(buf) \|\| ARC_BUF_LAST(buf));

	/*
	* It would be nice to assert arc_can_share() too, but the "hdr isn't
	* already being shared" requirement prevents us from doing that.
	*/

	return (shared);
	}

	/*
	* Free the checksum associated with this header. If there is no checksum, this
	* is a no-op.
	*/
	static inline void
	arc_cksum_free(arc_buf_hdr_t *hdr)
	{
	ASSERT(HDR_HAS_L1HDR(hdr));

	mutex_enter(&hdr->b_l1hdr.b_freeze_lock);
	if (hdr->b_l1hdr.b_freeze_cksum != NULL) {
	kmem_free(hdr->b_l1hdr.b_freeze_cksum, sizeof (zio_cksum_t));
	hdr->b_l1hdr.b_freeze_cksum = NULL;
	}
	mutex_exit(&hdr->b_l1hdr.b_freeze_lock);
	}

	/*
	* Return true iff at least one of the bufs on hdr is not compressed.
	* Encrypted buffers count as compressed.
	*/
	static boolean_t
	arc_hdr_has_uncompressed_buf(arc_buf_hdr_t *hdr)
	{
	ASSERT(hdr->b_l1hdr.b_state == arc_anon \|\| HDR_EMPTY_OR_LOCKED(hdr));

	for (arc_buf_t *b = hdr->b_l1hdr.b_buf; b != NULL; b = b->b_next) {
	if (!ARC_BUF_COMPRESSED(b)) {
	return (B_TRUE);
	}
	}
	return (B_FALSE);
	}


	/*
	* If we've turned on the ZFS_DEBUG_MODIFY flag, verify that the buf's data
	* matches the checksum that is stored in the hdr. If there is no checksum,
	* or if the buf is compressed, this is a no-op.
	*/
	static void
	arc_cksum_verify(arc_buf_t *buf)
	{
	arc_buf_hdr_t *hdr = buf->b_hdr;
	zio_cksum_t zc;

	if (!(zfs_flags & ZFS_DEBUG_MODIFY))
	return;

	if (ARC_BUF_COMPRESSED(buf))
	return;

	ASSERT(HDR_HAS_L1HDR(hdr));

	mutex_enter(&hdr->b_l1hdr.b_freeze_lock);

	if (hdr->b_l1hdr.b_freeze_cksum == NULL \|\| HDR_IO_ERROR(hdr)) {
	mutex_exit(&hdr->b_l1hdr.b_freeze_lock);
	return;
	}

	fletcher_2_native(buf->b_data, arc_buf_size(buf), NULL, &zc);
	if (!ZIO_CHECKSUM_EQUAL(*hdr->b_l1hdr.b_freeze_cksum, zc))
	panic("buffer modified while frozen!");
	mutex_exit(&hdr->b_l1hdr.b_freeze_lock);
	}

	/*
	* This function makes the assumption that data stored in the L2ARC
	* will be transformed exactly as it is in the main pool. Because of
	* this we can verify the checksum against the reading process's bp.
	*/
	static boolean_t
	arc_cksum_is_equal(arc_buf_hdr_t hdr, zio_t zio)
	{
	ASSERT(!BP_IS_EMBEDDED(zio->io_bp));
	VERIFY3U(BP_GET_PSIZE(zio->io_bp), ==, HDR_GET_PSIZE(hdr));

	/*
	* Block pointers always store the checksum for the logical data.
	* If the block pointer has the gang bit set, then the checksum
	* it represents is for the reconstituted data and not for an
	* individual gang member. The zio pipeline, however, must be able to
	* determine the checksum of each of the gang constituents so it
	* treats the checksum comparison differently than what we need
	* for l2arc blocks. This prevents us from using the
	* zio_checksum_error() interface directly. Instead we must call the
	* zio_checksum_error_impl() so that we can ensure the checksum is
	* generated using the correct checksum algorithm and accounts for the
	* logical I/O size and not just a gang fragment.
	*/
	return (zio_checksum_error_impl(zio->io_spa, zio->io_bp,
	BP_GET_CHECKSUM(zio->io_bp), zio->io_abd, zio->io_size,
	zio->io_offset, NULL) == 0);
	}

	/*
	* Given a buf full of data, if ZFS_DEBUG_MODIFY is enabled this computes a
	* checksum and attaches it to the buf's hdr so that we can ensure that the buf
	* isn't modified later on. If buf is compressed or there is already a checksum
	* on the hdr, this is a no-op (we only checksum uncompressed bufs).
	*/
	static void
	arc_cksum_compute(arc_buf_t *buf)
	{
	arc_buf_hdr_t *hdr = buf->b_hdr;

	if (!(zfs_flags & ZFS_DEBUG_MODIFY))
	return;

	ASSERT(HDR_HAS_L1HDR(hdr));

	mutex_enter(&buf->b_hdr->b_l1hdr.b_freeze_lock);
	if (hdr->b_l1hdr.b_freeze_cksum != NULL \|\| ARC_BUF_COMPRESSED(buf)) {
	mutex_exit(&hdr->b_l1hdr.b_freeze_lock);
	return;
	}

	ASSERT(!ARC_BUF_ENCRYPTED(buf));
	ASSERT(!ARC_BUF_COMPRESSED(buf));
	hdr->b_l1hdr.b_freeze_cksum = kmem_alloc(sizeof (zio_cksum_t),
	KM_SLEEP);
	fletcher_2_native(buf->b_data, arc_buf_size(buf), NULL,
	hdr->b_l1hdr.b_freeze_cksum);
	mutex_exit(&hdr->b_l1hdr.b_freeze_lock);
	arc_buf_watch(buf);
	}

	#ifndef _KERNEL
	void
	arc_buf_sigsegv(int sig, siginfo_t si, void unused)
	{
	panic("Got SIGSEGV at address: 0x%lx\n", (long)si->si_addr);
	}
	#endif

	/* ARGSUSED */
	static void
	arc_buf_unwatch(arc_buf_t *buf)
	{
	#ifndef _KERNEL
	if (arc_watch) {
	ASSERT0(mprotect(buf->b_data, arc_buf_size(buf),
	PROT_READ \| PROT_WRITE));
	}
	#endif
	}

	/* ARGSUSED */
	static void
	arc_buf_watch(arc_buf_t *buf)
	{
	#ifndef _KERNEL
	if (arc_watch)
	ASSERT0(mprotect(buf->b_data, arc_buf_size(buf),
	PROT_READ));
	#endif
	}

	static arc_buf_contents_t
	arc_buf_type(arc_buf_hdr_t *hdr)
	{
	arc_buf_contents_t type;
	if (HDR_ISTYPE_METADATA(hdr)) {
	type = ARC_BUFC_METADATA;
	} else {
	type = ARC_BUFC_DATA;
	}
	VERIFY3U(hdr->b_type, ==, type);
	return (type);
	}

	boolean_t
	arc_is_metadata(arc_buf_t *buf)
	{
	return (HDR_ISTYPE_METADATA(buf->b_hdr) != 0);
	}

	static uint32_t
	arc_bufc_to_flags(arc_buf_contents_t type)
	{
	switch (type) {
	case ARC_BUFC_DATA:
	/* metadata field is 0 if buffer contains normal data */
	return (0);
	case ARC_BUFC_METADATA:
	return (ARC_FLAG_BUFC_METADATA);
	default:
	break;
	}
	panic("undefined ARC buffer type!");
	return ((uint32_t)-1);
	}

	void
	arc_buf_thaw(arc_buf_t *buf)
	{
	arc_buf_hdr_t *hdr = buf->b_hdr;

	ASSERT3P(hdr->b_l1hdr.b_state, ==, arc_anon);
	ASSERT(!HDR_IO_IN_PROGRESS(hdr));

	arc_cksum_verify(buf);

	/*
	* Compressed buffers do not manipulate the b_freeze_cksum.
	*/
	if (ARC_BUF_COMPRESSED(buf))
	return;

	ASSERT(HDR_HAS_L1HDR(hdr));
	arc_cksum_free(hdr);
	arc_buf_unwatch(buf);
	}

	void
	arc_buf_freeze(arc_buf_t *buf)
	{
	if (!(zfs_flags & ZFS_DEBUG_MODIFY))
	return;

	if (ARC_BUF_COMPRESSED(buf))
	return;

	ASSERT(HDR_HAS_L1HDR(buf->b_hdr));
	arc_cksum_compute(buf);
	}

	/*
	* The arc_buf_hdr_t's b_flags should never be modified directly. Instead,
	* the following functions should be used to ensure that the flags are
	* updated in a thread-safe way. When manipulating the flags either
	* the hash_lock must be held or the hdr must be undiscoverable. This
	* ensures that we're not racing with any other threads when updating
	* the flags.
	*/
	static inline void
	arc_hdr_set_flags(arc_buf_hdr_t *hdr, arc_flags_t flags)
	{
	ASSERT(HDR_EMPTY_OR_LOCKED(hdr));
	hdr->b_flags \|= flags;
	}

	static inline void
	arc_hdr_clear_flags(arc_buf_hdr_t *hdr, arc_flags_t flags)
	{
	ASSERT(HDR_EMPTY_OR_LOCKED(hdr));
	hdr->b_flags &= ~flags;
	}

	/*
	* Setting the compression bits in the arc_buf_hdr_t's b_flags is
	* done in a special way since we have to clear and set bits
	* at the same time. Consumers that wish to set the compression bits
	* must use this function to ensure that the flags are updated in
	* thread-safe manner.
	*/
	static void
	arc_hdr_set_compress(arc_buf_hdr_t *hdr, enum zio_compress cmp)
	{
	ASSERT(HDR_EMPTY_OR_LOCKED(hdr));

	/*
	* Holes and embedded blocks will always have a psize = 0 so
	* we ignore the compression of the blkptr and set the
	* want to uncompress them. Mark them as uncompressed.
	*/
	if (!zfs_compressed_arc_enabled \|\| HDR_GET_PSIZE(hdr) == 0) {
	arc_hdr_clear_flags(hdr, ARC_FLAG_COMPRESSED_ARC);
	ASSERT(!HDR_COMPRESSION_ENABLED(hdr));
	} else {
	arc_hdr_set_flags(hdr, ARC_FLAG_COMPRESSED_ARC);
	ASSERT(HDR_COMPRESSION_ENABLED(hdr));
	}

	HDR_SET_COMPRESS(hdr, cmp);
	ASSERT3U(HDR_GET_COMPRESS(hdr), ==, cmp);
	}

	/*
	* Looks for another buf on the same hdr which has the data decompressed, copies
	* from it, and returns true. If no such buf exists, returns false.
	*/
	static boolean_t
	arc_buf_try_copy_decompressed_data(arc_buf_t *buf)
	{
	arc_buf_hdr_t *hdr = buf->b_hdr;
	boolean_t copied = B_FALSE;

	ASSERT(HDR_HAS_L1HDR(hdr));
	ASSERT3P(buf->b_data, !=, NULL);
	ASSERT(!ARC_BUF_COMPRESSED(buf));

	for (arc_buf_t *from = hdr->b_l1hdr.b_buf; from != NULL;
	from = from->b_next) {
	/* can't use our own data buffer */
	if (from == buf) {
	continue;
	}

	if (!ARC_BUF_COMPRESSED(from)) {
	bcopy(from->b_data, buf->b_data, arc_buf_size(buf));
	copied = B_TRUE;
	break;
	}
	}

	/*
	* There were no decompressed bufs, so there should not be a
	* checksum on the hdr either.
	*/
	if (zfs_flags & ZFS_DEBUG_MODIFY)
	EQUIV(!copied, hdr->b_l1hdr.b_freeze_cksum == NULL);

	return (copied);
	}

	/*
	* Allocates an ARC buf header that's in an evicted & L2-cached state.
	* This is used during l2arc reconstruction to make empty ARC buffers
	* which circumvent the regular disk->arc->l2arc path and instead come
	* into being in the reverse order, i.e. l2arc->arc.
	*/
	static arc_buf_hdr_t *
	arc_buf_alloc_l2only(size_t size, arc_buf_contents_t type, l2arc_dev_t *dev,
	dva_t dva, uint64_t daddr, int32_t psize, uint64_t birth,
	enum zio_compress compress, uint8_t complevel, boolean_t protected,
	boolean_t prefetch, arc_state_type_t arcs_state)
	{
	arc_buf_hdr_t *hdr;

	ASSERT(size != 0);
	hdr = kmem_cache_alloc(hdr_l2only_cache, KM_SLEEP);
	hdr->b_birth = birth;
	hdr->b_type = type;
	hdr->b_flags = 0;
	arc_hdr_set_flags(hdr, arc_bufc_to_flags(type) \| ARC_FLAG_HAS_L2HDR);
	HDR_SET_LSIZE(hdr, size);
	HDR_SET_PSIZE(hdr, psize);
	arc_hdr_set_compress(hdr, compress);
	hdr->b_complevel = complevel;
	if (protected)
	arc_hdr_set_flags(hdr, ARC_FLAG_PROTECTED);
	if (prefetch)
	arc_hdr_set_flags(hdr, ARC_FLAG_PREFETCH);
	hdr->b_spa = spa_load_guid(dev->l2ad_vdev->vdev_spa);

	hdr->b_dva = dva;

	hdr->b_l2hdr.b_dev = dev;
	hdr->b_l2hdr.b_daddr = daddr;
	hdr->b_l2hdr.b_arcs_state = arcs_state;

	return (hdr);
	}

	/*
	* Return the size of the block, b_pabd, that is stored in the arc_buf_hdr_t.
	*/
	static uint64_t
	arc_hdr_size(arc_buf_hdr_t *hdr)
	{
	uint64_t size;

	if (arc_hdr_get_compress(hdr) != ZIO_COMPRESS_OFF &&
	HDR_GET_PSIZE(hdr) > 0) {
	size = HDR_GET_PSIZE(hdr);
	} else {
	ASSERT3U(HDR_GET_LSIZE(hdr), !=, 0);
	size = HDR_GET_LSIZE(hdr);
	}
	return (size);
	}

	static int
	arc_hdr_authenticate(arc_buf_hdr_t hdr, spa_t spa, uint64_t dsobj)
	{
	int ret;
	uint64_t csize;
	uint64_t lsize = HDR_GET_LSIZE(hdr);
	uint64_t psize = HDR_GET_PSIZE(hdr);
	void *tmpbuf = NULL;
	abd_t *abd = hdr->b_l1hdr.b_pabd;

	ASSERT(HDR_EMPTY_OR_LOCKED(hdr));
	ASSERT(HDR_AUTHENTICATED(hdr));
	ASSERT3P(hdr->b_l1hdr.b_pabd, !=, NULL);

	/*
	* The MAC is calculated on the compressed data that is stored on disk.
	* However, if compressed arc is disabled we will only have the
	* decompressed data available to us now. Compress it into a temporary
	* abd so we can verify the MAC. The performance overhead of this will
	* be relatively low, since most objects in an encrypted objset will
	* be encrypted (instead of authenticated) anyway.
	*/
	if (HDR_GET_COMPRESS(hdr) != ZIO_COMPRESS_OFF &&
	!HDR_COMPRESSION_ENABLED(hdr)) {
	tmpbuf = zio_buf_alloc(lsize);
	abd = abd_get_from_buf(tmpbuf, lsize);
	abd_take_ownership_of_buf(abd, B_TRUE);
	csize = zio_compress_data(HDR_GET_COMPRESS(hdr),
	hdr->b_l1hdr.b_pabd, tmpbuf, lsize, hdr->b_complevel);
	ASSERT3U(csize, <=, psize);
	abd_zero_off(abd, csize, psize - csize);
	}

	/*
	* Authentication is best effort. We authenticate whenever the key is
	* available. If we succeed we clear ARC_FLAG_NOAUTH.
	*/
	if (hdr->b_crypt_hdr.b_ot == DMU_OT_OBJSET) {
	ASSERT3U(HDR_GET_COMPRESS(hdr), ==, ZIO_COMPRESS_OFF);
	ASSERT3U(lsize, ==, psize);
	ret = spa_do_crypt_objset_mac_abd(B_FALSE, spa, dsobj, abd,
	psize, hdr->b_l1hdr.b_byteswap != DMU_BSWAP_NUMFUNCS);
	} else {
	ret = spa_do_crypt_mac_abd(B_FALSE, spa, dsobj, abd, psize,
	hdr->b_crypt_hdr.b_mac);
	}

	if (ret == 0)
	arc_hdr_clear_flags(hdr, ARC_FLAG_NOAUTH);
	else if (ret != ENOENT)
	goto error;

	if (tmpbuf != NULL)
	abd_free(abd);

	return (0);

	error:
	if (tmpbuf != NULL)
	abd_free(abd);

	return (ret);
	}

	/*
	* This function will take a header that only has raw encrypted data in
	* b_crypt_hdr.b_rabd and decrypt it into a new buffer which is stored in
	* b_l1hdr.b_pabd. If designated in the header flags, this function will
	* also decompress the data.
	*/
	static int
	arc_hdr_decrypt(arc_buf_hdr_t hdr, spa_t spa, const zbookmark_phys_t *zb)
	{
	int ret;
	abd_t *cabd = NULL;
	void *tmp = NULL;
	boolean_t no_crypt = B_FALSE;
	boolean_t bswap = (hdr->b_l1hdr.b_byteswap != DMU_BSWAP_NUMFUNCS);

	ASSERT(HDR_EMPTY_OR_LOCKED(hdr));
	ASSERT(HDR_ENCRYPTED(hdr));

	arc_hdr_alloc_abd(hdr, ARC_HDR_DO_ADAPT);

	ret = spa_do_crypt_abd(B_FALSE, spa, zb, hdr->b_crypt_hdr.b_ot,
	B_FALSE, bswap, hdr->b_crypt_hdr.b_salt, hdr->b_crypt_hdr.b_iv,
	hdr->b_crypt_hdr.b_mac, HDR_GET_PSIZE(hdr), hdr->b_l1hdr.b_pabd,
	hdr->b_crypt_hdr.b_rabd, &no_crypt);
	if (ret != 0)
	goto error;

	if (no_crypt) {
	abd_copy(hdr->b_l1hdr.b_pabd, hdr->b_crypt_hdr.b_rabd,
	HDR_GET_PSIZE(hdr));
	}

	/*
	* If this header has disabled arc compression but the b_pabd is
	* compressed after decrypting it, we need to decompress the newly
	* decrypted data.
	*/
	if (HDR_GET_COMPRESS(hdr) != ZIO_COMPRESS_OFF &&
	!HDR_COMPRESSION_ENABLED(hdr)) {
	/*
	* We want to make sure that we are correctly honoring the
	* zfs_abd_scatter_enabled setting, so we allocate an abd here
	* and then loan a buffer from it, rather than allocating a
	* linear buffer and wrapping it in an abd later.
	*/
	cabd = arc_get_data_abd(hdr, arc_hdr_size(hdr), hdr, B_TRUE);
	tmp = abd_borrow_buf(cabd, arc_hdr_size(hdr));

	ret = zio_decompress_data(HDR_GET_COMPRESS(hdr),
	hdr->b_l1hdr.b_pabd, tmp, HDR_GET_PSIZE(hdr),
	HDR_GET_LSIZE(hdr), &hdr->b_complevel);
	if (ret != 0) {
	abd_return_buf(cabd, tmp, arc_hdr_size(hdr));
	goto error;
	}

	abd_return_buf_copy(cabd, tmp, arc_hdr_size(hdr));
	arc_free_data_abd(hdr, hdr->b_l1hdr.b_pabd,
	arc_hdr_size(hdr), hdr);
	hdr->b_l1hdr.b_pabd = cabd;
	}

	return (0);

	error:
	arc_hdr_free_abd(hdr, B_FALSE);
	if (cabd != NULL)
	arc_free_data_buf(hdr, cabd, arc_hdr_size(hdr), hdr);

	return (ret);
	}

	/*
	* This function is called during arc_buf_fill() to prepare the header's
	* abd plaintext pointer for use. This involves authenticated protected
	* data and decrypting encrypted data into the plaintext abd.
	*/
	static int
	arc_fill_hdr_crypt(arc_buf_hdr_t hdr, kmutex_t hash_lock, spa_t *spa,
	const zbookmark_phys_t *zb, boolean_t noauth)
	{
	int ret;

	ASSERT(HDR_PROTECTED(hdr));

	if (hash_lock != NULL)
	mutex_enter(hash_lock);

	if (HDR_NOAUTH(hdr) && !noauth) {
	/*
	* The caller requested authenticated data but our data has
	* not been authenticated yet. Verify the MAC now if we can.
	*/
	ret = arc_hdr_authenticate(hdr, spa, zb->zb_objset);
	if (ret != 0)
	goto error;
	} else if (HDR_HAS_RABD(hdr) && hdr->b_l1hdr.b_pabd == NULL) {
	/*
	* If we only have the encrypted version of the data, but the
	* unencrypted version was requested we take this opportunity
	* to store the decrypted version in the header for future use.
	*/
	ret = arc_hdr_decrypt(hdr, spa, zb);
	if (ret != 0)
	goto error;
	}

	ASSERT3P(hdr->b_l1hdr.b_pabd, !=, NULL);

	if (hash_lock != NULL)
	mutex_exit(hash_lock);

	return (0);

	error:
	if (hash_lock != NULL)
	mutex_exit(hash_lock);

	return (ret);
	}

	/*
	* This function is used by the dbuf code to decrypt bonus buffers in place.
	* The dbuf code itself doesn't have any locking for decrypting a shared dnode
	* block, so we use the hash lock here to protect against concurrent calls to
	* arc_buf_fill().
	*/
	static void
	arc_buf_untransform_in_place(arc_buf_t buf, kmutex_t hash_lock)
	{
	arc_buf_hdr_t *hdr = buf->b_hdr;

	ASSERT(HDR_ENCRYPTED(hdr));
	ASSERT3U(hdr->b_crypt_hdr.b_ot, ==, DMU_OT_DNODE);
	ASSERT(HDR_EMPTY_OR_LOCKED(hdr));
	ASSERT3P(hdr->b_l1hdr.b_pabd, !=, NULL);

	zio_crypt_copy_dnode_bonus(hdr->b_l1hdr.b_pabd, buf->b_data,
	arc_buf_size(buf));
	buf->b_flags &= ~ARC_BUF_FLAG_ENCRYPTED;
	buf->b_flags &= ~ARC_BUF_FLAG_COMPRESSED;
	hdr->b_crypt_hdr.b_ebufcnt -= 1;
	}

	/*
	* Given a buf that has a data buffer attached to it, this function will
	* efficiently fill the buf with data of the specified compression setting from
	* the hdr and update the hdr's b_freeze_cksum if necessary. If the buf and hdr
	* are already sharing a data buf, no copy is performed.
	*
	* If the buf is marked as compressed but uncompressed data was requested, this
	* will allocate a new data buffer for the buf, remove that flag, and fill the
	* buf with uncompressed data. You can't request a compressed buf on a hdr with
	* uncompressed data, and (since we haven't added support for it yet) if you
	* want compressed data your buf must already be marked as compressed and have
	* the correct-sized data buffer.
	*/
	static int
	arc_buf_fill(arc_buf_t buf, spa_t spa, const zbookmark_phys_t *zb,
	arc_fill_flags_t flags)
	{
	int error = 0;
	arc_buf_hdr_t *hdr = buf->b_hdr;
	boolean_t hdr_compressed =
	(arc_hdr_get_compress(hdr) != ZIO_COMPRESS_OFF);
	boolean_t compressed = (flags & ARC_FILL_COMPRESSED) != 0;
	boolean_t encrypted = (flags & ARC_FILL_ENCRYPTED) != 0;
	dmu_object_byteswap_t bswap = hdr->b_l1hdr.b_byteswap;
	kmutex_t *hash_lock = (flags & ARC_FILL_LOCKED) ? NULL : HDR_LOCK(hdr);

	ASSERT3P(buf->b_data, !=, NULL);
	IMPLY(compressed, hdr_compressed \|\| ARC_BUF_ENCRYPTED(buf));
	IMPLY(compressed, ARC_BUF_COMPRESSED(buf));
	IMPLY(encrypted, HDR_ENCRYPTED(hdr));
	IMPLY(encrypted, ARC_BUF_ENCRYPTED(buf));
	IMPLY(encrypted, ARC_BUF_COMPRESSED(buf));
	IMPLY(encrypted, !ARC_BUF_SHARED(buf));

	/*
	* If the caller wanted encrypted data we just need to copy it from
	* b_rabd and potentially byteswap it. We won't be able to do any
	* further transforms on it.
	*/
	if (encrypted) {
	ASSERT(HDR_HAS_RABD(hdr));
	abd_copy_to_buf(buf->b_data, hdr->b_crypt_hdr.b_rabd,
	HDR_GET_PSIZE(hdr));
	goto byteswap;
	}

	/*
	* Adjust encrypted and authenticated headers to accommodate
	* the request if needed. Dnode blocks (ARC_FILL_IN_PLACE) are
	* allowed to fail decryption due to keys not being loaded
	* without being marked as an IO error.
	*/
	if (HDR_PROTECTED(hdr)) {
	error = arc_fill_hdr_crypt(hdr, hash_lock, spa,
	zb, !!(flags & ARC_FILL_NOAUTH));
	if (error == EACCES && (flags & ARC_FILL_IN_PLACE) != 0) {
	return (error);
	} else if (error != 0) {
	if (hash_lock != NULL)
	mutex_enter(hash_lock);
	arc_hdr_set_flags(hdr, ARC_FLAG_IO_ERROR);
	if (hash_lock != NULL)
	mutex_exit(hash_lock);
	return (error);
	}
	}

	/*
	* There is a special case here for dnode blocks which are
	* decrypting their bonus buffers. These blocks may request to
	* be decrypted in-place. This is necessary because there may
	* be many dnodes pointing into this buffer and there is
	* currently no method to synchronize replacing the backing
	* b_data buffer and updating all of the pointers. Here we use
	* the hash lock to ensure there are no races. If the need
	* arises for other types to be decrypted in-place, they must
	* add handling here as well.
	*/
	if ((flags & ARC_FILL_IN_PLACE) != 0) {
	ASSERT(!hdr_compressed);
	ASSERT(!compressed);
	ASSERT(!encrypted);

	if (HDR_ENCRYPTED(hdr) && ARC_BUF_ENCRYPTED(buf)) {
	ASSERT3U(hdr->b_crypt_hdr.b_ot, ==, DMU_OT_DNODE);

	if (hash_lock != NULL)
	mutex_enter(hash_lock);
	arc_buf_untransform_in_place(buf, hash_lock);
	if (hash_lock != NULL)
	mutex_exit(hash_lock);

	/* Compute the hdr's checksum if necessary */
	arc_cksum_compute(buf);
	}

	return (0);
	}

	if (hdr_compressed == compressed) {
	if (!arc_buf_is_shared(buf)) {
	abd_copy_to_buf(buf->b_data, hdr->b_l1hdr.b_pabd,
	arc_buf_size(buf));
	}
	} else {
	ASSERT(hdr_compressed);
	ASSERT(!compressed);
	ASSERT3U(HDR_GET_LSIZE(hdr), !=, HDR_GET_PSIZE(hdr));

	/*
	* If the buf is sharing its data with the hdr, unlink it and
	* allocate a new data buffer for the buf.
	*/
	if (arc_buf_is_shared(buf)) {
	ASSERT(ARC_BUF_COMPRESSED(buf));

	/* We need to give the buf its own b_data */
	buf->b_flags &= ~ARC_BUF_FLAG_SHARED;
	buf->b_data =
	arc_get_data_buf(hdr, HDR_GET_LSIZE(hdr), buf);
	arc_hdr_clear_flags(hdr, ARC_FLAG_SHARED_DATA);

	/* Previously overhead was 0; just add new overhead */
	ARCSTAT_INCR(arcstat_overhead_size, HDR_GET_LSIZE(hdr));
	} else if (ARC_BUF_COMPRESSED(buf)) {
	/* We need to reallocate the buf's b_data */
	arc_free_data_buf(hdr, buf->b_data, HDR_GET_PSIZE(hdr),
	buf);
	buf->b_data =
	arc_get_data_buf(hdr, HDR_GET_LSIZE(hdr), buf);

	/* We increased the size of b_data; update overhead */
	ARCSTAT_INCR(arcstat_overhead_size,
	HDR_GET_LSIZE(hdr) - HDR_GET_PSIZE(hdr));
	}

	/*
	* Regardless of the buf's previous compression settings, it
	* should not be compressed at the end of this function.
	*/
	buf->b_flags &= ~ARC_BUF_FLAG_COMPRESSED;

	/*
	* Try copying the data from another buf which already has a
	* decompressed version. If that's not possible, it's time to
	* bite the bullet and decompress the data from the hdr.
	*/
	if (arc_buf_try_copy_decompressed_data(buf)) {
	/* Skip byteswapping and checksumming (already done) */
	return (0);
	} else {
	error = zio_decompress_data(HDR_GET_COMPRESS(hdr),
	hdr->b_l1hdr.b_pabd, buf->b_data,
	HDR_GET_PSIZE(hdr), HDR_GET_LSIZE(hdr),
	&hdr->b_complevel);

	/*
	* Absent hardware errors or software bugs, this should
	* be impossible, but log it anyway so we can debug it.
	*/
	if (error != 0) {
	zfs_dbgmsg(
	"hdr %px, compress %d, psize %d, lsize %d",
	hdr, arc_hdr_get_compress(hdr),
	HDR_GET_PSIZE(hdr), HDR_GET_LSIZE(hdr));
	if (hash_lock != NULL)
	mutex_enter(hash_lock);
	arc_hdr_set_flags(hdr, ARC_FLAG_IO_ERROR);
	if (hash_lock != NULL)
	mutex_exit(hash_lock);
	return (SET_ERROR(EIO));
	}
	}
	}

	byteswap:
	/* Byteswap the buf's data if necessary */
	if (bswap != DMU_BSWAP_NUMFUNCS) {
	ASSERT(!HDR_SHARED_DATA(hdr));
	ASSERT3U(bswap, <, DMU_BSWAP_NUMFUNCS);
	dmu_ot_byteswap[bswap].ob_func(buf->b_data, HDR_GET_LSIZE(hdr));
	}

	/* Compute the hdr's checksum if necessary */
	arc_cksum_compute(buf);

	return (0);
	}

	/*
	* If this function is being called to decrypt an encrypted buffer or verify an
	* authenticated one, the key must be loaded and a mapping must be made
	* available in the keystore via spa_keystore_create_mapping() or one of its
	* callers.
	*/
	int
	arc_untransform(arc_buf_t buf, spa_t spa, const zbookmark_phys_t *zb,
	boolean_t in_place)
	{
	int ret;
	arc_fill_flags_t flags = 0;

	if (in_place)
	flags \|= ARC_FILL_IN_PLACE;

	ret = arc_buf_fill(buf, spa, zb, flags);
	if (ret == ECKSUM) {
	/*
	* Convert authentication and decryption errors to EIO
	* (and generate an ereport) before leaving the ARC.
	*/
	ret = SET_ERROR(EIO);
	spa_log_error(spa, zb);
	(void) zfs_ereport_post(FM_EREPORT_ZFS_AUTHENTICATION,
	spa, NULL, zb, NULL, 0);
	}

	return (ret);
	}

	/*
	* Increment the amount of evictable space in the arc_state_t's refcount.
	* We account for the space used by the hdr and the arc buf individually
	* so that we can add and remove them from the refcount individually.
	*/
	static void
	arc_evictable_space_increment(arc_buf_hdr_t hdr, arc_state_t state)
	{
	arc_buf_contents_t type = arc_buf_type(hdr);

	ASSERT(HDR_HAS_L1HDR(hdr));

	if (GHOST_STATE(state)) {
	ASSERT0(hdr->b_l1hdr.b_bufcnt);
	ASSERT3P(hdr->b_l1hdr.b_buf, ==, NULL);
	ASSERT3P(hdr->b_l1hdr.b_pabd, ==, NULL);
	ASSERT(!HDR_HAS_RABD(hdr));
	(void) zfs_refcount_add_many(&state->arcs_esize[type],
	HDR_GET_LSIZE(hdr), hdr);
	return;
	}

	ASSERT(!GHOST_STATE(state));
	if (hdr->b_l1hdr.b_pabd != NULL) {
	(void) zfs_refcount_add_many(&state->arcs_esize[type],
	arc_hdr_size(hdr), hdr);
	}
	if (HDR_HAS_RABD(hdr)) {
	(void) zfs_refcount_add_many(&state->arcs_esize[type],
	HDR_GET_PSIZE(hdr), hdr);
	}

	for (arc_buf_t *buf = hdr->b_l1hdr.b_buf; buf != NULL;
	buf = buf->b_next) {
	if (arc_buf_is_shared(buf))
	continue;
	(void) zfs_refcount_add_many(&state->arcs_esize[type],
	arc_buf_size(buf), buf);
	}
	}

	/*
	* Decrement the amount of evictable space in the arc_state_t's refcount.
	* We account for the space used by the hdr and the arc buf individually
	* so that we can add and remove them from the refcount individually.
	*/
	static void
	arc_evictable_space_decrement(arc_buf_hdr_t hdr, arc_state_t state)
	{
	arc_buf_contents_t type = arc_buf_type(hdr);

	ASSERT(HDR_HAS_L1HDR(hdr));

	if (GHOST_STATE(state)) {
	ASSERT0(hdr->b_l1hdr.b_bufcnt);
	ASSERT3P(hdr->b_l1hdr.b_buf, ==, NULL);
	ASSERT3P(hdr->b_l1hdr.b_pabd, ==, NULL);
	ASSERT(!HDR_HAS_RABD(hdr));
	(void) zfs_refcount_remove_many(&state->arcs_esize[type],
	HDR_GET_LSIZE(hdr), hdr);
	return;
	}

	ASSERT(!GHOST_STATE(state));
	if (hdr->b_l1hdr.b_pabd != NULL) {
	(void) zfs_refcount_remove_many(&state->arcs_esize[type],
	arc_hdr_size(hdr), hdr);
	}
	if (HDR_HAS_RABD(hdr)) {
	(void) zfs_refcount_remove_many(&state->arcs_esize[type],
	HDR_GET_PSIZE(hdr), hdr);
	}

	for (arc_buf_t *buf = hdr->b_l1hdr.b_buf; buf != NULL;
	buf = buf->b_next) {
	if (arc_buf_is_shared(buf))
	continue;
	(void) zfs_refcount_remove_many(&state->arcs_esize[type],
	arc_buf_size(buf), buf);
	}
	}

	/*
	* Add a reference to this hdr indicating that someone is actively
	* referencing that memory. When the refcount transitions from 0 to 1,
	* we remove it from the respective arc_state_t list to indicate that
	* it is not evictable.
	*/
	static void
	add_reference(arc_buf_hdr_t hdr, void tag)
	{
	arc_state_t *state;

	ASSERT(HDR_HAS_L1HDR(hdr));
	if (!HDR_EMPTY(hdr) && !MUTEX_HELD(HDR_LOCK(hdr))) {
	ASSERT(hdr->b_l1hdr.b_state == arc_anon);
	ASSERT(zfs_refcount_is_zero(&hdr->b_l1hdr.b_refcnt));
	ASSERT3P(hdr->b_l1hdr.b_buf, ==, NULL);
	}

	state = hdr->b_l1hdr.b_state;

	if ((zfs_refcount_add(&hdr->b_l1hdr.b_refcnt, tag) == 1) &&
	(state != arc_anon)) {
	/* We don't use the L2-only state list. */
	if (state != arc_l2c_only) {
	- multilist_remove(state->arcs_list[arc_buf_type(hdr)],
	+ multilist_remove(&state->arcs_list[arc_buf_type(hdr)],
	hdr);
	arc_evictable_space_decrement(hdr, state);
	}
	/* remove the prefetch flag if we get a reference */
	if (HDR_HAS_L2HDR(hdr))
	l2arc_hdr_arcstats_decrement_state(hdr);
	arc_hdr_clear_flags(hdr, ARC_FLAG_PREFETCH);
	if (HDR_HAS_L2HDR(hdr))
	l2arc_hdr_arcstats_increment_state(hdr);
	}
	}

	/*
	* Remove a reference from this hdr. When the reference transitions from
	* 1 to 0 and we're not anonymous, then we add this hdr to the arc_state_t's
	* list making it eligible for eviction.
	*/
	static int
	remove_reference(arc_buf_hdr_t hdr, kmutex_t hash_lock, void *tag)
	{
	int cnt;
	arc_state_t *state = hdr->b_l1hdr.b_state;

	ASSERT(HDR_HAS_L1HDR(hdr));
	ASSERT(state == arc_anon \|\| MUTEX_HELD(hash_lock));
	ASSERT(!GHOST_STATE(state));

	/*
	* arc_l2c_only counts as a ghost state so we don't need to explicitly
	* check to prevent usage of the arc_l2c_only list.
	*/
	if (((cnt = zfs_refcount_remove(&hdr->b_l1hdr.b_refcnt, tag)) == 0) &&
	(state != arc_anon)) {
	- multilist_insert(state->arcs_list[arc_buf_type(hdr)], hdr);
	+ multilist_insert(&state->arcs_list[arc_buf_type(hdr)], hdr);
	ASSERT3U(hdr->b_l1hdr.b_bufcnt, >, 0);
	arc_evictable_space_increment(hdr, state);
	}
	return (cnt);
	}

	/*
	* Returns detailed information about a specific arc buffer. When the
	* state_index argument is set the function will calculate the arc header
	* list position for its arc state. Since this requires a linear traversal
	* callers are strongly encourage not to do this. However, it can be helpful
	* for targeted analysis so the functionality is provided.
	*/
	void
	arc_buf_info(arc_buf_t ab, arc_buf_info_t abi, int state_index)
	{
	arc_buf_hdr_t *hdr = ab->b_hdr;
	l1arc_buf_hdr_t *l1hdr = NULL;
	l2arc_buf_hdr_t *l2hdr = NULL;
	arc_state_t *state = NULL;

	memset(abi, 0, sizeof (arc_buf_info_t));

	if (hdr == NULL)
	return;

	abi->abi_flags = hdr->b_flags;

	if (HDR_HAS_L1HDR(hdr)) {
	l1hdr = &hdr->b_l1hdr;
	state = l1hdr->b_state;
	}
	if (HDR_HAS_L2HDR(hdr))
	l2hdr = &hdr->b_l2hdr;

	if (l1hdr) {
	abi->abi_bufcnt = l1hdr->b_bufcnt;
	abi->abi_access = l1hdr->b_arc_access;
	abi->abi_mru_hits = l1hdr->b_mru_hits;
	abi->abi_mru_ghost_hits = l1hdr->b_mru_ghost_hits;
	abi->abi_mfu_hits = l1hdr->b_mfu_hits;
	abi->abi_mfu_ghost_hits = l1hdr->b_mfu_ghost_hits;
	abi->abi_holds = zfs_refcount_count(&l1hdr->b_refcnt);
	}

	if (l2hdr) {
	abi->abi_l2arc_dattr = l2hdr->b_daddr;
	abi->abi_l2arc_hits = l2hdr->b_hits;
	}

	abi->abi_state_type = state ? state->arcs_state : ARC_STATE_ANON;
	abi->abi_state_contents = arc_buf_type(hdr);
	abi->abi_size = arc_hdr_size(hdr);
	}

	/*
	* Move the supplied buffer to the indicated state. The hash lock
	* for the buffer must be held by the caller.
	*/
	static void
	arc_change_state(arc_state_t new_state, arc_buf_hdr_t hdr,
	kmutex_t *hash_lock)
	{
	arc_state_t *old_state;
	int64_t refcnt;
	uint32_t bufcnt;
	boolean_t update_old, update_new;
	arc_buf_contents_t buftype = arc_buf_type(hdr);

	/*
	* We almost always have an L1 hdr here, since we call arc_hdr_realloc()
	* in arc_read() when bringing a buffer out of the L2ARC. However, the
	* L1 hdr doesn't always exist when we change state to arc_anon before
	* destroying a header, in which case reallocating to add the L1 hdr is
	* pointless.
	*/
	if (HDR_HAS_L1HDR(hdr)) {
	old_state = hdr->b_l1hdr.b_state;
	refcnt = zfs_refcount_count(&hdr->b_l1hdr.b_refcnt);
	bufcnt = hdr->b_l1hdr.b_bufcnt;
	update_old = (bufcnt > 0 \|\| hdr->b_l1hdr.b_pabd != NULL \|\|
	HDR_HAS_RABD(hdr));
	} else {
	old_state = arc_l2c_only;
	refcnt = 0;
	bufcnt = 0;
	update_old = B_FALSE;
	}
	update_new = update_old;

	ASSERT(MUTEX_HELD(hash_lock));
	ASSERT3P(new_state, !=, old_state);
	ASSERT(!GHOST_STATE(new_state) \|\| bufcnt == 0);
	ASSERT(old_state != arc_anon \|\| bufcnt <= 1);

	/*
	* If this buffer is evictable, transfer it from the
	* old state list to the new state list.
	*/
	if (refcnt == 0) {
	if (old_state != arc_anon && old_state != arc_l2c_only) {
	ASSERT(HDR_HAS_L1HDR(hdr));
	- multilist_remove(old_state->arcs_list[buftype], hdr);
	+ multilist_remove(&old_state->arcs_list[buftype], hdr);

	if (GHOST_STATE(old_state)) {
	ASSERT0(bufcnt);
	ASSERT3P(hdr->b_l1hdr.b_buf, ==, NULL);
	update_old = B_TRUE;
	}
	arc_evictable_space_decrement(hdr, old_state);
	}
	if (new_state != arc_anon && new_state != arc_l2c_only) {
	/*
	* An L1 header always exists here, since if we're
	* moving to some L1-cached state (i.e. not l2c_only or
	* anonymous), we realloc the header to add an L1hdr
	* beforehand.
	*/
	ASSERT(HDR_HAS_L1HDR(hdr));
	- multilist_insert(new_state->arcs_list[buftype], hdr);
	+ multilist_insert(&new_state->arcs_list[buftype], hdr);

	if (GHOST_STATE(new_state)) {
	ASSERT0(bufcnt);
	ASSERT3P(hdr->b_l1hdr.b_buf, ==, NULL);
	update_new = B_TRUE;
	}
	arc_evictable_space_increment(hdr, new_state);
	}
	}

	ASSERT(!HDR_EMPTY(hdr));
	if (new_state == arc_anon && HDR_IN_HASH_TABLE(hdr))
	buf_hash_remove(hdr);

	/* adjust state sizes (ignore arc_l2c_only) */

	if (update_new && new_state != arc_l2c_only) {
	ASSERT(HDR_HAS_L1HDR(hdr));
	if (GHOST_STATE(new_state)) {
	ASSERT0(bufcnt);

	/*
	* When moving a header to a ghost state, we first
	* remove all arc buffers. Thus, we'll have a
	* bufcnt of zero, and no arc buffer to use for
	* the reference. As a result, we use the arc
	* header pointer for the reference.
	*/
	(void) zfs_refcount_add_many(&new_state->arcs_size,
	HDR_GET_LSIZE(hdr), hdr);
	ASSERT3P(hdr->b_l1hdr.b_pabd, ==, NULL);
	ASSERT(!HDR_HAS_RABD(hdr));
	} else {
	uint32_t buffers = 0;

	/*
	* Each individual buffer holds a unique reference,
	* thus we must remove each of these references one
	* at a time.
	*/
	for (arc_buf_t *buf = hdr->b_l1hdr.b_buf; buf != NULL;
	buf = buf->b_next) {
	ASSERT3U(bufcnt, !=, 0);
	buffers++;

	/*
	* When the arc_buf_t is sharing the data
	* block with the hdr, the owner of the
	* reference belongs to the hdr. Only
	* add to the refcount if the arc_buf_t is
	* not shared.
	*/
	if (arc_buf_is_shared(buf))
	continue;

	(void) zfs_refcount_add_many(
	&new_state->arcs_size,
	arc_buf_size(buf), buf);
	}
	ASSERT3U(bufcnt, ==, buffers);

	if (hdr->b_l1hdr.b_pabd != NULL) {
	(void) zfs_refcount_add_many(
	&new_state->arcs_size,
	arc_hdr_size(hdr), hdr);
	}

	if (HDR_HAS_RABD(hdr)) {
	(void) zfs_refcount_add_many(
	&new_state->arcs_size,
	HDR_GET_PSIZE(hdr), hdr);
	}
	}
	}

	if (update_old && old_state != arc_l2c_only) {
	ASSERT(HDR_HAS_L1HDR(hdr));
	if (GHOST_STATE(old_state)) {
	ASSERT0(bufcnt);
	ASSERT3P(hdr->b_l1hdr.b_pabd, ==, NULL);
	ASSERT(!HDR_HAS_RABD(hdr));

	/*
	* When moving a header off of a ghost state,
	* the header will not contain any arc buffers.
	* We use the arc header pointer for the reference
	* which is exactly what we did when we put the
	* header on the ghost state.
	*/

	(void) zfs_refcount_remove_many(&old_state->arcs_size,
	HDR_GET_LSIZE(hdr), hdr);
	} else {
	uint32_t buffers = 0;

	/*
	* Each individual buffer holds a unique reference,
	* thus we must remove each of these references one
	* at a time.
	*/
	for (arc_buf_t *buf = hdr->b_l1hdr.b_buf; buf != NULL;
	buf = buf->b_next) {
	ASSERT3U(bufcnt, !=, 0);
	buffers++;

	/*
	* When the arc_buf_t is sharing the data
	* block with the hdr, the owner of the
	* reference belongs to the hdr. Only
	* add to the refcount if the arc_buf_t is
	* not shared.
	*/
	if (arc_buf_is_shared(buf))
	continue;

	(void) zfs_refcount_remove_many(
	&old_state->arcs_size, arc_buf_size(buf),
	buf);
	}
	ASSERT3U(bufcnt, ==, buffers);
	ASSERT(hdr->b_l1hdr.b_pabd != NULL \|\|
	HDR_HAS_RABD(hdr));

	if (hdr->b_l1hdr.b_pabd != NULL) {
	(void) zfs_refcount_remove_many(
	&old_state->arcs_size, arc_hdr_size(hdr),
	hdr);
	}

	if (HDR_HAS_RABD(hdr)) {
	(void) zfs_refcount_remove_many(
	&old_state->arcs_size, HDR_GET_PSIZE(hdr),
	hdr);
	}
	}
	}

	if (HDR_HAS_L1HDR(hdr)) {
	hdr->b_l1hdr.b_state = new_state;

	if (HDR_HAS_L2HDR(hdr) && new_state != arc_l2c_only) {
	l2arc_hdr_arcstats_decrement_state(hdr);
	hdr->b_l2hdr.b_arcs_state = new_state->arcs_state;
	l2arc_hdr_arcstats_increment_state(hdr);
	}
	}

	/*
	* L2 headers should never be on the L2 state list since they don't
	* have L1 headers allocated.
	*/
	- ASSERT(multilist_is_empty(arc_l2c_only->arcs_list[ARC_BUFC_DATA]) &&
	- multilist_is_empty(arc_l2c_only->arcs_list[ARC_BUFC_METADATA]));
	+ ASSERT(multilist_is_empty(&arc_l2c_only->arcs_list[ARC_BUFC_DATA]) &&
	+ multilist_is_empty(&arc_l2c_only->arcs_list[ARC_BUFC_METADATA]));
	}

	void
	arc_space_consume(uint64_t space, arc_space_type_t type)
	{
	ASSERT(type >= 0 && type < ARC_SPACE_NUMTYPES);

	switch (type) {
	default:
	break;
	case ARC_SPACE_DATA:
	wmsum_add(&astat_data_size, space);
	break;
	case ARC_SPACE_META:
	wmsum_add(&astat_metadata_size, space);
	break;
	case ARC_SPACE_BONUS:
	wmsum_add(&astat_bonus_size, space);
	break;
	case ARC_SPACE_DNODE:
	aggsum_add(&astat_dnode_size, space);
	break;
	case ARC_SPACE_DBUF:
	wmsum_add(&astat_dbuf_size, space);
	break;
	case ARC_SPACE_HDRS:
	wmsum_add(&astat_hdr_size, space);
	break;
	case ARC_SPACE_L2HDRS:
	aggsum_add(&astat_l2_hdr_size, space);
	break;
	case ARC_SPACE_ABD_CHUNK_WASTE:
	/*
	* Note: this includes space wasted by all scatter ABD's, not
	* just those allocated by the ARC. But the vast majority of
	* scatter ABD's come from the ARC, because other users are
	* very short-lived.
	*/
	wmsum_add(&astat_abd_chunk_waste_size, space);
	break;
	}

	if (type != ARC_SPACE_DATA && type != ARC_SPACE_ABD_CHUNK_WASTE)
	aggsum_add(&arc_meta_used, space);

	aggsum_add(&arc_size, space);
	}

	void
	arc_space_return(uint64_t space, arc_space_type_t type)
	{
	ASSERT(type >= 0 && type < ARC_SPACE_NUMTYPES);

	switch (type) {
	default:
	break;
	case ARC_SPACE_DATA:
	wmsum_add(&astat_data_size, -space);
	break;
	case ARC_SPACE_META:
	wmsum_add(&astat_metadata_size, -space);
	break;
	case ARC_SPACE_BONUS:
	wmsum_add(&astat_bonus_size, -space);
	break;
	case ARC_SPACE_DNODE:
	aggsum_add(&astat_dnode_size, -space);
	break;
	case ARC_SPACE_DBUF:
	wmsum_add(&astat_dbuf_size, -space);
	break;
	case ARC_SPACE_HDRS:
	wmsum_add(&astat_hdr_size, -space);
	break;
	case ARC_SPACE_L2HDRS:
	aggsum_add(&astat_l2_hdr_size, -space);
	break;
	case ARC_SPACE_ABD_CHUNK_WASTE:
	wmsum_add(&astat_abd_chunk_waste_size, -space);
	break;
	}

	if (type != ARC_SPACE_DATA && type != ARC_SPACE_ABD_CHUNK_WASTE) {
	ASSERT(aggsum_compare(&arc_meta_used, space) >= 0);
	/*
	* We use the upper bound here rather than the precise value
	* because the arc_meta_max value doesn't need to be
	* precise. It's only consumed by humans via arcstats.
	*/
	if (arc_meta_max < aggsum_upper_bound(&arc_meta_used))
	arc_meta_max = aggsum_upper_bound(&arc_meta_used);
	aggsum_add(&arc_meta_used, -space);
	}

	ASSERT(aggsum_compare(&arc_size, space) >= 0);
	aggsum_add(&arc_size, -space);
	}

	/*
	* Given a hdr and a buf, returns whether that buf can share its b_data buffer
	* with the hdr's b_pabd.
	*/
	static boolean_t
	arc_can_share(arc_buf_hdr_t hdr, arc_buf_t buf)
	{
	/*
	* The criteria for sharing a hdr's data are:
	* 1. the buffer is not encrypted
	* 2. the hdr's compression matches the buf's compression
	* 3. the hdr doesn't need to be byteswapped
	* 4. the hdr isn't already being shared
	* 5. the buf is either compressed or it is the last buf in the hdr list
	*
	* Criterion #5 maintains the invariant that shared uncompressed
	* bufs must be the final buf in the hdr's b_buf list. Reading this, you
	* might ask, "if a compressed buf is allocated first, won't that be the
	* last thing in the list?", but in that case it's impossible to create
	* a shared uncompressed buf anyway (because the hdr must be compressed
	* to have the compressed buf). You might also think that #3 is
	* sufficient to make this guarantee, however it's possible
	* (specifically in the rare L2ARC write race mentioned in
	* arc_buf_alloc_impl()) there will be an existing uncompressed buf that
	* is shareable, but wasn't at the time of its allocation. Rather than
	* allow a new shared uncompressed buf to be created and then shuffle
	* the list around to make it the last element, this simply disallows
	* sharing if the new buf isn't the first to be added.
	*/
	ASSERT3P(buf->b_hdr, ==, hdr);
	boolean_t hdr_compressed =
	arc_hdr_get_compress(hdr) != ZIO_COMPRESS_OFF;
	boolean_t buf_compressed = ARC_BUF_COMPRESSED(buf) != 0;
	return (!ARC_BUF_ENCRYPTED(buf) &&
	buf_compressed == hdr_compressed &&
	hdr->b_l1hdr.b_byteswap == DMU_BSWAP_NUMFUNCS &&
	!HDR_SHARED_DATA(hdr) &&
	(ARC_BUF_LAST(buf) \|\| ARC_BUF_COMPRESSED(buf)));
	}

	/*
	* Allocate a buf for this hdr. If you care about the data that's in the hdr,
	* or if you want a compressed buffer, pass those flags in. Returns 0 if the
	* copy was made successfully, or an error code otherwise.
	*/
	static int
	arc_buf_alloc_impl(arc_buf_hdr_t hdr, spa_t spa, const zbookmark_phys_t *zb,
	void *tag, boolean_t encrypted, boolean_t compressed, boolean_t noauth,
	boolean_t fill, arc_buf_t **ret)
	{
	arc_buf_t *buf;
	arc_fill_flags_t flags = ARC_FILL_LOCKED;

	ASSERT(HDR_HAS_L1HDR(hdr));
	ASSERT3U(HDR_GET_LSIZE(hdr), >, 0);
	VERIFY(hdr->b_type == ARC_BUFC_DATA \|\|
	hdr->b_type == ARC_BUFC_METADATA);
	ASSERT3P(ret, !=, NULL);
	ASSERT3P(*ret, ==, NULL);
	IMPLY(encrypted, compressed);

	hdr->b_l1hdr.b_mru_hits = 0;
	hdr->b_l1hdr.b_mru_ghost_hits = 0;
	hdr->b_l1hdr.b_mfu_hits = 0;
	hdr->b_l1hdr.b_mfu_ghost_hits = 0;
	hdr->b_l1hdr.b_l2_hits = 0;

	buf = *ret = kmem_cache_alloc(buf_cache, KM_PUSHPAGE);
	buf->b_hdr = hdr;
	buf->b_data = NULL;
	buf->b_next = hdr->b_l1hdr.b_buf;
	buf->b_flags = 0;

	add_reference(hdr, tag);

	/*
	* We're about to change the hdr's b_flags. We must either
	* hold the hash_lock or be undiscoverable.
	*/
	ASSERT(HDR_EMPTY_OR_LOCKED(hdr));

	/*
	* Only honor requests for compressed bufs if the hdr is actually
	* compressed. This must be overridden if the buffer is encrypted since
	* encrypted buffers cannot be decompressed.
	*/
	if (encrypted) {
	buf->b_flags \|= ARC_BUF_FLAG_COMPRESSED;
	buf->b_flags \|= ARC_BUF_FLAG_ENCRYPTED;
	flags \|= ARC_FILL_COMPRESSED \| ARC_FILL_ENCRYPTED;
	} else if (compressed &&
	arc_hdr_get_compress(hdr) != ZIO_COMPRESS_OFF) {
	buf->b_flags \|= ARC_BUF_FLAG_COMPRESSED;
	flags \|= ARC_FILL_COMPRESSED;
	}

	if (noauth) {
	ASSERT0(encrypted);
	flags \|= ARC_FILL_NOAUTH;
	}

	/*
	* If the hdr's data can be shared then we share the data buffer and
	* set the appropriate bit in the hdr's b_flags to indicate the hdr is
	* sharing it's b_pabd with the arc_buf_t. Otherwise, we allocate a new
	* buffer to store the buf's data.
	*
	* There are two additional restrictions here because we're sharing
	* hdr -> buf instead of the usual buf -> hdr. First, the hdr can't be
	* actively involved in an L2ARC write, because if this buf is used by
	* an arc_write() then the hdr's data buffer will be released when the
	* write completes, even though the L2ARC write might still be using it.
	* Second, the hdr's ABD must be linear so that the buf's user doesn't
	* need to be ABD-aware. It must be allocated via
	* zio_[data_]buf_alloc(), not as a page, because we need to be able
	* to abd_release_ownership_of_buf(), which isn't allowed on "linear
	* page" buffers because the ABD code needs to handle freeing them
	* specially.
	*/
	boolean_t can_share = arc_can_share(hdr, buf) &&
	!HDR_L2_WRITING(hdr) &&
	hdr->b_l1hdr.b_pabd != NULL &&
	abd_is_linear(hdr->b_l1hdr.b_pabd) &&
	!abd_is_linear_page(hdr->b_l1hdr.b_pabd);

	/* Set up b_data and sharing */
	if (can_share) {
	buf->b_data = abd_to_buf(hdr->b_l1hdr.b_pabd);
	buf->b_flags \|= ARC_BUF_FLAG_SHARED;
	arc_hdr_set_flags(hdr, ARC_FLAG_SHARED_DATA);
	} else {
	buf->b_data =
	arc_get_data_buf(hdr, arc_buf_size(buf), buf);
	ARCSTAT_INCR(arcstat_overhead_size, arc_buf_size(buf));
	}
	VERIFY3P(buf->b_data, !=, NULL);

	hdr->b_l1hdr.b_buf = buf;
	hdr->b_l1hdr.b_bufcnt += 1;
	if (encrypted)
	hdr->b_crypt_hdr.b_ebufcnt += 1;

	/*
	* If the user wants the data from the hdr, we need to either copy or
	* decompress the data.
	*/
	if (fill) {
	ASSERT3P(zb, !=, NULL);
	return (arc_buf_fill(buf, spa, zb, flags));
	}

	return (0);
	}

	static char *arc_onloan_tag = "onloan";

	static inline void
	arc_loaned_bytes_update(int64_t delta)
	{
	atomic_add_64(&arc_loaned_bytes, delta);

	/* assert that it did not wrap around */
	ASSERT3S(atomic_add_64_nv(&arc_loaned_bytes, 0), >=, 0);
	}

	/*
	* Loan out an anonymous arc buffer. Loaned buffers are not counted as in
	* flight data by arc_tempreserve_space() until they are "returned". Loaned
	* buffers must be returned to the arc before they can be used by the DMU or
	* freed.
	*/
	arc_buf_t *
	arc_loan_buf(spa_t *spa, boolean_t is_metadata, int size)
	{
	arc_buf_t *buf = arc_alloc_buf(spa, arc_onloan_tag,
	is_metadata ? ARC_BUFC_METADATA : ARC_BUFC_DATA, size);

	arc_loaned_bytes_update(arc_buf_size(buf));

	return (buf);
	}

	arc_buf_t *
	arc_loan_compressed_buf(spa_t *spa, uint64_t psize, uint64_t lsize,
	enum zio_compress compression_type, uint8_t complevel)
	{
	arc_buf_t *buf = arc_alloc_compressed_buf(spa, arc_onloan_tag,
	psize, lsize, compression_type, complevel);

	arc_loaned_bytes_update(arc_buf_size(buf));

	return (buf);
	}

	arc_buf_t *
	arc_loan_raw_buf(spa_t *spa, uint64_t dsobj, boolean_t byteorder,
	const uint8_t salt, const uint8_t iv, const uint8_t *mac,
	dmu_object_type_t ot, uint64_t psize, uint64_t lsize,
	enum zio_compress compression_type, uint8_t complevel)
	{
	arc_buf_t *buf = arc_alloc_raw_buf(spa, arc_onloan_tag, dsobj,
	byteorder, salt, iv, mac, ot, psize, lsize, compression_type,
	complevel);

	atomic_add_64(&arc_loaned_bytes, psize);
	return (buf);
	}


	/*
	* Return a loaned arc buffer to the arc.
	*/
	void
	arc_return_buf(arc_buf_t buf, void tag)
	{
	arc_buf_hdr_t *hdr = buf->b_hdr;

	ASSERT3P(buf->b_data, !=, NULL);
	ASSERT(HDR_HAS_L1HDR(hdr));
	(void) zfs_refcount_add(&hdr->b_l1hdr.b_refcnt, tag);
	(void) zfs_refcount_remove(&hdr->b_l1hdr.b_refcnt, arc_onloan_tag);

	arc_loaned_bytes_update(-arc_buf_size(buf));
	}

	/* Detach an arc_buf from a dbuf (tag) */
	void
	arc_loan_inuse_buf(arc_buf_t buf, void tag)
	{
	arc_buf_hdr_t *hdr = buf->b_hdr;

	ASSERT3P(buf->b_data, !=, NULL);
	ASSERT(HDR_HAS_L1HDR(hdr));
	(void) zfs_refcount_add(&hdr->b_l1hdr.b_refcnt, arc_onloan_tag);
	(void) zfs_refcount_remove(&hdr->b_l1hdr.b_refcnt, tag);

	arc_loaned_bytes_update(arc_buf_size(buf));
	}

	static void
	l2arc_free_abd_on_write(abd_t *abd, size_t size, arc_buf_contents_t type)
	{
	l2arc_data_free_t df = kmem_alloc(sizeof (df), KM_SLEEP);

	df->l2df_abd = abd;
	df->l2df_size = size;
	df->l2df_type = type;
	mutex_enter(&l2arc_free_on_write_mtx);
	list_insert_head(l2arc_free_on_write, df);
	mutex_exit(&l2arc_free_on_write_mtx);
	}

	static void
	arc_hdr_free_on_write(arc_buf_hdr_t *hdr, boolean_t free_rdata)
	{
	arc_state_t *state = hdr->b_l1hdr.b_state;
	arc_buf_contents_t type = arc_buf_type(hdr);
	uint64_t size = (free_rdata) ? HDR_GET_PSIZE(hdr) : arc_hdr_size(hdr);

	/* protected by hash lock, if in the hash table */
	if (multilist_link_active(&hdr->b_l1hdr.b_arc_node)) {
	ASSERT(zfs_refcount_is_zero(&hdr->b_l1hdr.b_refcnt));
	ASSERT(state != arc_anon && state != arc_l2c_only);

	(void) zfs_refcount_remove_many(&state->arcs_esize[type],
	size, hdr);
	}
	(void) zfs_refcount_remove_many(&state->arcs_size, size, hdr);
	if (type == ARC_BUFC_METADATA) {
	arc_space_return(size, ARC_SPACE_META);
	} else {
	ASSERT(type == ARC_BUFC_DATA);
	arc_space_return(size, ARC_SPACE_DATA);
	}

	if (free_rdata) {
	l2arc_free_abd_on_write(hdr->b_crypt_hdr.b_rabd, size, type);
	} else {
	l2arc_free_abd_on_write(hdr->b_l1hdr.b_pabd, size, type);
	}
	}

	/*
	* Share the arc_buf_t's data with the hdr. Whenever we are sharing the
	* data buffer, we transfer the refcount ownership to the hdr and update
	* the appropriate kstats.
	*/
	static void
	arc_share_buf(arc_buf_hdr_t hdr, arc_buf_t buf)
	{
	ASSERT(arc_can_share(hdr, buf));
	ASSERT3P(hdr->b_l1hdr.b_pabd, ==, NULL);
	ASSERT(!ARC_BUF_ENCRYPTED(buf));
	ASSERT(HDR_EMPTY_OR_LOCKED(hdr));

	/*
	* Start sharing the data buffer. We transfer the
	* refcount ownership to the hdr since it always owns
	* the refcount whenever an arc_buf_t is shared.
	*/
	zfs_refcount_transfer_ownership_many(&hdr->b_l1hdr.b_state->arcs_size,
	arc_hdr_size(hdr), buf, hdr);
	hdr->b_l1hdr.b_pabd = abd_get_from_buf(buf->b_data, arc_buf_size(buf));
	abd_take_ownership_of_buf(hdr->b_l1hdr.b_pabd,
	HDR_ISTYPE_METADATA(hdr));
	arc_hdr_set_flags(hdr, ARC_FLAG_SHARED_DATA);
	buf->b_flags \|= ARC_BUF_FLAG_SHARED;

	/*
	* Since we've transferred ownership to the hdr we need
	* to increment its compressed and uncompressed kstats and
	* decrement the overhead size.
	*/
	ARCSTAT_INCR(arcstat_compressed_size, arc_hdr_size(hdr));
	ARCSTAT_INCR(arcstat_uncompressed_size, HDR_GET_LSIZE(hdr));
	ARCSTAT_INCR(arcstat_overhead_size, -arc_buf_size(buf));
	}

	static void
	arc_unshare_buf(arc_buf_hdr_t hdr, arc_buf_t buf)
	{
	ASSERT(arc_buf_is_shared(buf));
	ASSERT3P(hdr->b_l1hdr.b_pabd, !=, NULL);
	ASSERT(HDR_EMPTY_OR_LOCKED(hdr));

	/*
	* We are no longer sharing this buffer so we need
	* to transfer its ownership to the rightful owner.
	*/
	zfs_refcount_transfer_ownership_many(&hdr->b_l1hdr.b_state->arcs_size,
	arc_hdr_size(hdr), hdr, buf);
	arc_hdr_clear_flags(hdr, ARC_FLAG_SHARED_DATA);
	abd_release_ownership_of_buf(hdr->b_l1hdr.b_pabd);
	abd_free(hdr->b_l1hdr.b_pabd);
	hdr->b_l1hdr.b_pabd = NULL;
	buf->b_flags &= ~ARC_BUF_FLAG_SHARED;

	/*
	* Since the buffer is no longer shared between
	* the arc buf and the hdr, count it as overhead.
	*/
	ARCSTAT_INCR(arcstat_compressed_size, -arc_hdr_size(hdr));
	ARCSTAT_INCR(arcstat_uncompressed_size, -HDR_GET_LSIZE(hdr));
	ARCSTAT_INCR(arcstat_overhead_size, arc_buf_size(buf));
	}

	/*
	* Remove an arc_buf_t from the hdr's buf list and return the last
	* arc_buf_t on the list. If no buffers remain on the list then return
	* NULL.
	*/
	static arc_buf_t *
	arc_buf_remove(arc_buf_hdr_t hdr, arc_buf_t buf)
	{
	ASSERT(HDR_HAS_L1HDR(hdr));
	ASSERT(HDR_EMPTY_OR_LOCKED(hdr));

	arc_buf_t **bufp = &hdr->b_l1hdr.b_buf;
	arc_buf_t *lastbuf = NULL;

	/*
	* Remove the buf from the hdr list and locate the last
	* remaining buffer on the list.
	*/
	while (*bufp != NULL) {
	if (*bufp == buf)
	*bufp = buf->b_next;

	/*
	* If we've removed a buffer in the middle of
	* the list then update the lastbuf and update
	* bufp.
	*/
	if (*bufp != NULL) {
	lastbuf = *bufp;
	bufp = &(*bufp)->b_next;
	}
	}
	buf->b_next = NULL;
	ASSERT3P(lastbuf, !=, buf);
	IMPLY(hdr->b_l1hdr.b_bufcnt > 0, lastbuf != NULL);
	IMPLY(hdr->b_l1hdr.b_bufcnt > 0, hdr->b_l1hdr.b_buf != NULL);
	IMPLY(lastbuf != NULL, ARC_BUF_LAST(lastbuf));

	return (lastbuf);
	}

	/*
	* Free up buf->b_data and pull the arc_buf_t off of the arc_buf_hdr_t's
	* list and free it.
	*/
	static void
	arc_buf_destroy_impl(arc_buf_t *buf)
	{
	arc_buf_hdr_t *hdr = buf->b_hdr;

	/*
	* Free up the data associated with the buf but only if we're not
	* sharing this with the hdr. If we are sharing it with the hdr, the
	* hdr is responsible for doing the free.
	*/
	if (buf->b_data != NULL) {
	/*
	* We're about to change the hdr's b_flags. We must either
	* hold the hash_lock or be undiscoverable.
	*/
	ASSERT(HDR_EMPTY_OR_LOCKED(hdr));

	arc_cksum_verify(buf);
	arc_buf_unwatch(buf);

	if (arc_buf_is_shared(buf)) {
	arc_hdr_clear_flags(hdr, ARC_FLAG_SHARED_DATA);
	} else {
	uint64_t size = arc_buf_size(buf);
	arc_free_data_buf(hdr, buf->b_data, size, buf);
	ARCSTAT_INCR(arcstat_overhead_size, -size);
	}
	buf->b_data = NULL;

	ASSERT(hdr->b_l1hdr.b_bufcnt > 0);
	hdr->b_l1hdr.b_bufcnt -= 1;

	if (ARC_BUF_ENCRYPTED(buf)) {
	hdr->b_crypt_hdr.b_ebufcnt -= 1;

	/*
	* If we have no more encrypted buffers and we've
	* already gotten a copy of the decrypted data we can
	* free b_rabd to save some space.
	*/
	if (hdr->b_crypt_hdr.b_ebufcnt == 0 &&
	HDR_HAS_RABD(hdr) && hdr->b_l1hdr.b_pabd != NULL &&
	!HDR_IO_IN_PROGRESS(hdr)) {
	arc_hdr_free_abd(hdr, B_TRUE);
	}
	}
	}

	arc_buf_t *lastbuf = arc_buf_remove(hdr, buf);

	if (ARC_BUF_SHARED(buf) && !ARC_BUF_COMPRESSED(buf)) {
	/*
	* If the current arc_buf_t is sharing its data buffer with the
	* hdr, then reassign the hdr's b_pabd to share it with the new
	* buffer at the end of the list. The shared buffer is always
	* the last one on the hdr's buffer list.
	*
	* There is an equivalent case for compressed bufs, but since
	* they aren't guaranteed to be the last buf in the list and
	* that is an exceedingly rare case, we just allow that space be
	* wasted temporarily. We must also be careful not to share
	* encrypted buffers, since they cannot be shared.
	*/
	if (lastbuf != NULL && !ARC_BUF_ENCRYPTED(lastbuf)) {
	/* Only one buf can be shared at once */
	VERIFY(!arc_buf_is_shared(lastbuf));
	/* hdr is uncompressed so can't have compressed buf */
	VERIFY(!ARC_BUF_COMPRESSED(lastbuf));

	ASSERT3P(hdr->b_l1hdr.b_pabd, !=, NULL);
	arc_hdr_free_abd(hdr, B_FALSE);

	/*
	* We must setup a new shared block between the
	* last buffer and the hdr. The data would have
	* been allocated by the arc buf so we need to transfer
	* ownership to the hdr since it's now being shared.
	*/
	arc_share_buf(hdr, lastbuf);
	}
	} else if (HDR_SHARED_DATA(hdr)) {
	/*
	* Uncompressed shared buffers are always at the end
	* of the list. Compressed buffers don't have the
	* same requirements. This makes it hard to
	* simply assert that the lastbuf is shared so
	* we rely on the hdr's compression flags to determine
	* if we have a compressed, shared buffer.
	*/
	ASSERT3P(lastbuf, !=, NULL);
	ASSERT(arc_buf_is_shared(lastbuf) \|\|
	arc_hdr_get_compress(hdr) != ZIO_COMPRESS_OFF);
	}

	/*
	* Free the checksum if we're removing the last uncompressed buf from
	* this hdr.
	*/
	if (!arc_hdr_has_uncompressed_buf(hdr)) {
	arc_cksum_free(hdr);
	}

	/* clean up the buf */
	buf->b_hdr = NULL;
	kmem_cache_free(buf_cache, buf);
	}

	static void
	arc_hdr_alloc_abd(arc_buf_hdr_t *hdr, int alloc_flags)
	{
	uint64_t size;
	boolean_t alloc_rdata = ((alloc_flags & ARC_HDR_ALLOC_RDATA) != 0);
	boolean_t do_adapt = ((alloc_flags & ARC_HDR_DO_ADAPT) != 0);

	ASSERT3U(HDR_GET_LSIZE(hdr), >, 0);
	ASSERT(HDR_HAS_L1HDR(hdr));
	ASSERT(!HDR_SHARED_DATA(hdr) \|\| alloc_rdata);
	IMPLY(alloc_rdata, HDR_PROTECTED(hdr));

	if (alloc_rdata) {
	size = HDR_GET_PSIZE(hdr);
	ASSERT3P(hdr->b_crypt_hdr.b_rabd, ==, NULL);
	hdr->b_crypt_hdr.b_rabd = arc_get_data_abd(hdr, size, hdr,
	do_adapt);
	ASSERT3P(hdr->b_crypt_hdr.b_rabd, !=, NULL);
	ARCSTAT_INCR(arcstat_raw_size, size);
	} else {
	size = arc_hdr_size(hdr);
	ASSERT3P(hdr->b_l1hdr.b_pabd, ==, NULL);
	hdr->b_l1hdr.b_pabd = arc_get_data_abd(hdr, size, hdr,
	do_adapt);
	ASSERT3P(hdr->b_l1hdr.b_pabd, !=, NULL);
	}

	ARCSTAT_INCR(arcstat_compressed_size, size);
	ARCSTAT_INCR(arcstat_uncompressed_size, HDR_GET_LSIZE(hdr));
	}

	static void
	arc_hdr_free_abd(arc_buf_hdr_t *hdr, boolean_t free_rdata)
	{
	uint64_t size = (free_rdata) ? HDR_GET_PSIZE(hdr) : arc_hdr_size(hdr);

	ASSERT(HDR_HAS_L1HDR(hdr));
	ASSERT(hdr->b_l1hdr.b_pabd != NULL \|\| HDR_HAS_RABD(hdr));
	IMPLY(free_rdata, HDR_HAS_RABD(hdr));

	/*
	* If the hdr is currently being written to the l2arc then
	* we defer freeing the data by adding it to the l2arc_free_on_write
	* list. The l2arc will free the data once it's finished
	* writing it to the l2arc device.
	*/
	if (HDR_L2_WRITING(hdr)) {
	arc_hdr_free_on_write(hdr, free_rdata);
	ARCSTAT_BUMP(arcstat_l2_free_on_write);
	} else if (free_rdata) {
	arc_free_data_abd(hdr, hdr->b_crypt_hdr.b_rabd, size, hdr);
	} else {
	arc_free_data_abd(hdr, hdr->b_l1hdr.b_pabd, size, hdr);
	}

	if (free_rdata) {
	hdr->b_crypt_hdr.b_rabd = NULL;
	ARCSTAT_INCR(arcstat_raw_size, -size);
	} else {
	hdr->b_l1hdr.b_pabd = NULL;
	}

	if (hdr->b_l1hdr.b_pabd == NULL && !HDR_HAS_RABD(hdr))
	hdr->b_l1hdr.b_byteswap = DMU_BSWAP_NUMFUNCS;

	ARCSTAT_INCR(arcstat_compressed_size, -size);
	ARCSTAT_INCR(arcstat_uncompressed_size, -HDR_GET_LSIZE(hdr));
	}

	static arc_buf_hdr_t *
	arc_hdr_alloc(uint64_t spa, int32_t psize, int32_t lsize,
	boolean_t protected, enum zio_compress compression_type, uint8_t complevel,
	arc_buf_contents_t type, boolean_t alloc_rdata)
	{
	arc_buf_hdr_t *hdr;
	int flags = ARC_HDR_DO_ADAPT;

	VERIFY(type == ARC_BUFC_DATA \|\| type == ARC_BUFC_METADATA);
	if (protected) {
	hdr = kmem_cache_alloc(hdr_full_crypt_cache, KM_PUSHPAGE);
	} else {
	hdr = kmem_cache_alloc(hdr_full_cache, KM_PUSHPAGE);
	}
	flags \|= alloc_rdata ? ARC_HDR_ALLOC_RDATA : 0;

	ASSERT(HDR_EMPTY(hdr));
	ASSERT3P(hdr->b_l1hdr.b_freeze_cksum, ==, NULL);
	HDR_SET_PSIZE(hdr, psize);
	HDR_SET_LSIZE(hdr, lsize);
	hdr->b_spa = spa;
	hdr->b_type = type;
	hdr->b_flags = 0;
	arc_hdr_set_flags(hdr, arc_bufc_to_flags(type) \| ARC_FLAG_HAS_L1HDR);
	arc_hdr_set_compress(hdr, compression_type);
	hdr->b_complevel = complevel;
	if (protected)
	arc_hdr_set_flags(hdr, ARC_FLAG_PROTECTED);

	hdr->b_l1hdr.b_state = arc_anon;
	hdr->b_l1hdr.b_arc_access = 0;
	hdr->b_l1hdr.b_bufcnt = 0;
	hdr->b_l1hdr.b_buf = NULL;

	/*
	* Allocate the hdr's buffer. This will contain either
	* the compressed or uncompressed data depending on the block
	* it references and compressed arc enablement.
	*/
	arc_hdr_alloc_abd(hdr, flags);
	ASSERT(zfs_refcount_is_zero(&hdr->b_l1hdr.b_refcnt));

	return (hdr);
	}

	/*
	* Transition between the two allocation states for the arc_buf_hdr struct.
	* The arc_buf_hdr struct can be allocated with (hdr_full_cache) or without
	* (hdr_l2only_cache) the fields necessary for the L1 cache - the smaller
	* version is used when a cache buffer is only in the L2ARC in order to reduce
	* memory usage.
	*/
	static arc_buf_hdr_t *
	arc_hdr_realloc(arc_buf_hdr_t hdr, kmem_cache_t old, kmem_cache_t *new)
	{
	ASSERT(HDR_HAS_L2HDR(hdr));

	arc_buf_hdr_t *nhdr;
	l2arc_dev_t *dev = hdr->b_l2hdr.b_dev;

	ASSERT((old == hdr_full_cache && new == hdr_l2only_cache) \|\|
	(old == hdr_l2only_cache && new == hdr_full_cache));

	/*
	* if the caller wanted a new full header and the header is to be
	* encrypted we will actually allocate the header from the full crypt
	* cache instead. The same applies to freeing from the old cache.
	*/
	if (HDR_PROTECTED(hdr) && new == hdr_full_cache)
	new = hdr_full_crypt_cache;
	if (HDR_PROTECTED(hdr) && old == hdr_full_cache)
	old = hdr_full_crypt_cache;

	nhdr = kmem_cache_alloc(new, KM_PUSHPAGE);

	ASSERT(MUTEX_HELD(HDR_LOCK(hdr)));
	buf_hash_remove(hdr);

	bcopy(hdr, nhdr, HDR_L2ONLY_SIZE);

	if (new == hdr_full_cache \|\| new == hdr_full_crypt_cache) {
	arc_hdr_set_flags(nhdr, ARC_FLAG_HAS_L1HDR);
	/*
	* arc_access and arc_change_state need to be aware that a
	* header has just come out of L2ARC, so we set its state to
	* l2c_only even though it's about to change.
	*/
	nhdr->b_l1hdr.b_state = arc_l2c_only;

	/* Verify previous threads set to NULL before freeing */
	ASSERT3P(nhdr->b_l1hdr.b_pabd, ==, NULL);
	ASSERT(!HDR_HAS_RABD(hdr));
	} else {
	ASSERT3P(hdr->b_l1hdr.b_buf, ==, NULL);
	ASSERT0(hdr->b_l1hdr.b_bufcnt);
	ASSERT3P(hdr->b_l1hdr.b_freeze_cksum, ==, NULL);

	/*
	* If we've reached here, We must have been called from
	* arc_evict_hdr(), as such we should have already been
	* removed from any ghost list we were previously on
	* (which protects us from racing with arc_evict_state),
	* thus no locking is needed during this check.
	*/
	ASSERT(!multilist_link_active(&hdr->b_l1hdr.b_arc_node));

	/*
	* A buffer must not be moved into the arc_l2c_only
	* state if it's not finished being written out to the
	* l2arc device. Otherwise, the b_l1hdr.b_pabd field
	* might try to be accessed, even though it was removed.
	*/
	VERIFY(!HDR_L2_WRITING(hdr));
	VERIFY3P(hdr->b_l1hdr.b_pabd, ==, NULL);
	ASSERT(!HDR_HAS_RABD(hdr));

	arc_hdr_clear_flags(nhdr, ARC_FLAG_HAS_L1HDR);
	}
	/*
	* The header has been reallocated so we need to re-insert it into any
	* lists it was on.
	*/
	(void) buf_hash_insert(nhdr, NULL);

	ASSERT(list_link_active(&hdr->b_l2hdr.b_l2node));

	mutex_enter(&dev->l2ad_mtx);

	/*
	* We must place the realloc'ed header back into the list at
	* the same spot. Otherwise, if it's placed earlier in the list,
	* l2arc_write_buffers() could find it during the function's
	* write phase, and try to write it out to the l2arc.
	*/
	list_insert_after(&dev->l2ad_buflist, hdr, nhdr);
	list_remove(&dev->l2ad_buflist, hdr);

	mutex_exit(&dev->l2ad_mtx);

	/*
	* Since we're using the pointer address as the tag when
	* incrementing and decrementing the l2ad_alloc refcount, we
	* must remove the old pointer (that we're about to destroy) and
	* add the new pointer to the refcount. Otherwise we'd remove
	* the wrong pointer address when calling arc_hdr_destroy() later.
	*/

	(void) zfs_refcount_remove_many(&dev->l2ad_alloc,
	arc_hdr_size(hdr), hdr);
	(void) zfs_refcount_add_many(&dev->l2ad_alloc,
	arc_hdr_size(nhdr), nhdr);

	buf_discard_identity(hdr);
	kmem_cache_free(old, hdr);

	return (nhdr);
	}

	/*
	* This function allows an L1 header to be reallocated as a crypt
	* header and vice versa. If we are going to a crypt header, the
	* new fields will be zeroed out.
	*/
	static arc_buf_hdr_t *
	arc_hdr_realloc_crypt(arc_buf_hdr_t *hdr, boolean_t need_crypt)
	{
	arc_buf_hdr_t *nhdr;
	arc_buf_t *buf;
	kmem_cache_t ncache, ocache;

	/*
	* This function requires that hdr is in the arc_anon state.
	* Therefore it won't have any L2ARC data for us to worry
	* about copying.
	*/
	ASSERT(HDR_HAS_L1HDR(hdr));
	ASSERT(!HDR_HAS_L2HDR(hdr));
	ASSERT3U(!!HDR_PROTECTED(hdr), !=, need_crypt);
	ASSERT3P(hdr->b_l1hdr.b_state, ==, arc_anon);
	ASSERT(!multilist_link_active(&hdr->b_l1hdr.b_arc_node));
	ASSERT(!list_link_active(&hdr->b_l2hdr.b_l2node));
	ASSERT3P(hdr->b_hash_next, ==, NULL);

	if (need_crypt) {
	ncache = hdr_full_crypt_cache;
	ocache = hdr_full_cache;
	} else {
	ncache = hdr_full_cache;
	ocache = hdr_full_crypt_cache;
	}

	nhdr = kmem_cache_alloc(ncache, KM_PUSHPAGE);

	/*
	* Copy all members that aren't locks or condvars to the new header.
	* No lists are pointing to us (as we asserted above), so we don't
	* need to worry about the list nodes.
	*/
	nhdr->b_dva = hdr->b_dva;
	nhdr->b_birth = hdr->b_birth;
	nhdr->b_type = hdr->b_type;
	nhdr->b_flags = hdr->b_flags;
	nhdr->b_psize = hdr->b_psize;
	nhdr->b_lsize = hdr->b_lsize;
	nhdr->b_spa = hdr->b_spa;
	nhdr->b_l1hdr.b_freeze_cksum = hdr->b_l1hdr.b_freeze_cksum;
	nhdr->b_l1hdr.b_bufcnt = hdr->b_l1hdr.b_bufcnt;
	nhdr->b_l1hdr.b_byteswap = hdr->b_l1hdr.b_byteswap;
	nhdr->b_l1hdr.b_state = hdr->b_l1hdr.b_state;
	nhdr->b_l1hdr.b_arc_access = hdr->b_l1hdr.b_arc_access;
	nhdr->b_l1hdr.b_mru_hits = hdr->b_l1hdr.b_mru_hits;
	nhdr->b_l1hdr.b_mru_ghost_hits = hdr->b_l1hdr.b_mru_ghost_hits;
	nhdr->b_l1hdr.b_mfu_hits = hdr->b_l1hdr.b_mfu_hits;
	nhdr->b_l1hdr.b_mfu_ghost_hits = hdr->b_l1hdr.b_mfu_ghost_hits;
	nhdr->b_l1hdr.b_l2_hits = hdr->b_l1hdr.b_l2_hits;
	nhdr->b_l1hdr.b_acb = hdr->b_l1hdr.b_acb;
	nhdr->b_l1hdr.b_pabd = hdr->b_l1hdr.b_pabd;

	/*
	* This zfs_refcount_add() exists only to ensure that the individual
	* arc buffers always point to a header that is referenced, avoiding
	* a small race condition that could trigger ASSERTs.
	*/
	(void) zfs_refcount_add(&nhdr->b_l1hdr.b_refcnt, FTAG);
	nhdr->b_l1hdr.b_buf = hdr->b_l1hdr.b_buf;
	for (buf = nhdr->b_l1hdr.b_buf; buf != NULL; buf = buf->b_next) {
	mutex_enter(&buf->b_evict_lock);
	buf->b_hdr = nhdr;
	mutex_exit(&buf->b_evict_lock);
	}

	zfs_refcount_transfer(&nhdr->b_l1hdr.b_refcnt, &hdr->b_l1hdr.b_refcnt);
	(void) zfs_refcount_remove(&nhdr->b_l1hdr.b_refcnt, FTAG);
	ASSERT0(zfs_refcount_count(&hdr->b_l1hdr.b_refcnt));

	if (need_crypt) {
	arc_hdr_set_flags(nhdr, ARC_FLAG_PROTECTED);
	} else {
	arc_hdr_clear_flags(nhdr, ARC_FLAG_PROTECTED);
	}

	/* unset all members of the original hdr */
	bzero(&hdr->b_dva, sizeof (dva_t));
	hdr->b_birth = 0;
	hdr->b_type = ARC_BUFC_INVALID;
	hdr->b_flags = 0;
	hdr->b_psize = 0;
	hdr->b_lsize = 0;
	hdr->b_spa = 0;
	hdr->b_l1hdr.b_freeze_cksum = NULL;
	hdr->b_l1hdr.b_buf = NULL;
	hdr->b_l1hdr.b_bufcnt = 0;
	hdr->b_l1hdr.b_byteswap = 0;
	hdr->b_l1hdr.b_state = NULL;
	hdr->b_l1hdr.b_arc_access = 0;
	hdr->b_l1hdr.b_mru_hits = 0;
	hdr->b_l1hdr.b_mru_ghost_hits = 0;
	hdr->b_l1hdr.b_mfu_hits = 0;
	hdr->b_l1hdr.b_mfu_ghost_hits = 0;
	hdr->b_l1hdr.b_l2_hits = 0;
	hdr->b_l1hdr.b_acb = NULL;
	hdr->b_l1hdr.b_pabd = NULL;

	if (ocache == hdr_full_crypt_cache) {
	ASSERT(!HDR_HAS_RABD(hdr));
	hdr->b_crypt_hdr.b_ot = DMU_OT_NONE;
	hdr->b_crypt_hdr.b_ebufcnt = 0;
	hdr->b_crypt_hdr.b_dsobj = 0;
	bzero(hdr->b_crypt_hdr.b_salt, ZIO_DATA_SALT_LEN);
	bzero(hdr->b_crypt_hdr.b_iv, ZIO_DATA_IV_LEN);
	bzero(hdr->b_crypt_hdr.b_mac, ZIO_DATA_MAC_LEN);
	}

	buf_discard_identity(hdr);
	kmem_cache_free(ocache, hdr);

	return (nhdr);
	}

	/*
	* This function is used by the send / receive code to convert a newly
	* allocated arc_buf_t to one that is suitable for a raw encrypted write. It
	* is also used to allow the root objset block to be updated without altering
	* its embedded MACs. Both block types will always be uncompressed so we do not
	* have to worry about compression type or psize.
	*/
	void
	arc_convert_to_raw(arc_buf_t *buf, uint64_t dsobj, boolean_t byteorder,
	dmu_object_type_t ot, const uint8_t salt, const uint8_t iv,
	const uint8_t *mac)
	{
	arc_buf_hdr_t *hdr = buf->b_hdr;

	ASSERT(ot == DMU_OT_DNODE \|\| ot == DMU_OT_OBJSET);
	ASSERT(HDR_HAS_L1HDR(hdr));
	ASSERT3P(hdr->b_l1hdr.b_state, ==, arc_anon);

	buf->b_flags \|= (ARC_BUF_FLAG_COMPRESSED \| ARC_BUF_FLAG_ENCRYPTED);
	if (!HDR_PROTECTED(hdr))
	hdr = arc_hdr_realloc_crypt(hdr, B_TRUE);
	hdr->b_crypt_hdr.b_dsobj = dsobj;
	hdr->b_crypt_hdr.b_ot = ot;
	hdr->b_l1hdr.b_byteswap = (byteorder == ZFS_HOST_BYTEORDER) ?
	DMU_BSWAP_NUMFUNCS : DMU_OT_BYTESWAP(ot);
	if (!arc_hdr_has_uncompressed_buf(hdr))
	arc_cksum_free(hdr);

	if (salt != NULL)
	bcopy(salt, hdr->b_crypt_hdr.b_salt, ZIO_DATA_SALT_LEN);
	if (iv != NULL)
	bcopy(iv, hdr->b_crypt_hdr.b_iv, ZIO_DATA_IV_LEN);
	if (mac != NULL)
	bcopy(mac, hdr->b_crypt_hdr.b_mac, ZIO_DATA_MAC_LEN);
	}

	/*
	* Allocate a new arc_buf_hdr_t and arc_buf_t and return the buf to the caller.
	* The buf is returned thawed since we expect the consumer to modify it.
	*/
	arc_buf_t *
	arc_alloc_buf(spa_t spa, void tag, arc_buf_contents_t type, int32_t size)
	{
	arc_buf_hdr_t *hdr = arc_hdr_alloc(spa_load_guid(spa), size, size,
	B_FALSE, ZIO_COMPRESS_OFF, 0, type, B_FALSE);

	arc_buf_t *buf = NULL;
	VERIFY0(arc_buf_alloc_impl(hdr, spa, NULL, tag, B_FALSE, B_FALSE,
	B_FALSE, B_FALSE, &buf));
	arc_buf_thaw(buf);

	return (buf);
	}

	/*
	* Allocate a compressed buf in the same manner as arc_alloc_buf. Don't use this
	* for bufs containing metadata.
	*/
	arc_buf_t *
	arc_alloc_compressed_buf(spa_t spa, void tag, uint64_t psize, uint64_t lsize,
	enum zio_compress compression_type, uint8_t complevel)
	{
	ASSERT3U(lsize, >, 0);
	ASSERT3U(lsize, >=, psize);
	ASSERT3U(compression_type, >, ZIO_COMPRESS_OFF);
	ASSERT3U(compression_type, <, ZIO_COMPRESS_FUNCTIONS);

	arc_buf_hdr_t *hdr = arc_hdr_alloc(spa_load_guid(spa), psize, lsize,
	B_FALSE, compression_type, complevel, ARC_BUFC_DATA, B_FALSE);

	arc_buf_t *buf = NULL;
	VERIFY0(arc_buf_alloc_impl(hdr, spa, NULL, tag, B_FALSE,
	B_TRUE, B_FALSE, B_FALSE, &buf));
	arc_buf_thaw(buf);
	ASSERT3P(hdr->b_l1hdr.b_freeze_cksum, ==, NULL);

	if (!arc_buf_is_shared(buf)) {
	/*
	* To ensure that the hdr has the correct data in it if we call
	* arc_untransform() on this buf before it's been written to
	* disk, it's easiest if we just set up sharing between the
	* buf and the hdr.
	*/
	arc_hdr_free_abd(hdr, B_FALSE);
	arc_share_buf(hdr, buf);
	}

	return (buf);
	}

	arc_buf_t *
	arc_alloc_raw_buf(spa_t spa, void tag, uint64_t dsobj, boolean_t byteorder,
	const uint8_t salt, const uint8_t iv, const uint8_t *mac,
	dmu_object_type_t ot, uint64_t psize, uint64_t lsize,
	enum zio_compress compression_type, uint8_t complevel)
	{
	arc_buf_hdr_t *hdr;
	arc_buf_t *buf;
	arc_buf_contents_t type = DMU_OT_IS_METADATA(ot) ?
	ARC_BUFC_METADATA : ARC_BUFC_DATA;

	ASSERT3U(lsize, >, 0);
	ASSERT3U(lsize, >=, psize);
	ASSERT3U(compression_type, >=, ZIO_COMPRESS_OFF);
	ASSERT3U(compression_type, <, ZIO_COMPRESS_FUNCTIONS);

	hdr = arc_hdr_alloc(spa_load_guid(spa), psize, lsize, B_TRUE,
	compression_type, complevel, type, B_TRUE);

	hdr->b_crypt_hdr.b_dsobj = dsobj;
	hdr->b_crypt_hdr.b_ot = ot;
	hdr->b_l1hdr.b_byteswap = (byteorder == ZFS_HOST_BYTEORDER) ?
	DMU_BSWAP_NUMFUNCS : DMU_OT_BYTESWAP(ot);
	bcopy(salt, hdr->b_crypt_hdr.b_salt, ZIO_DATA_SALT_LEN);
	bcopy(iv, hdr->b_crypt_hdr.b_iv, ZIO_DATA_IV_LEN);
	bcopy(mac, hdr->b_crypt_hdr.b_mac, ZIO_DATA_MAC_LEN);

	/*
	* This buffer will be considered encrypted even if the ot is not an
	* encrypted type. It will become authenticated instead in
	* arc_write_ready().
	*/
	buf = NULL;
	VERIFY0(arc_buf_alloc_impl(hdr, spa, NULL, tag, B_TRUE, B_TRUE,
	B_FALSE, B_FALSE, &buf));
	arc_buf_thaw(buf);
	ASSERT3P(hdr->b_l1hdr.b_freeze_cksum, ==, NULL);

	return (buf);
	}

	static void
	l2arc_hdr_arcstats_update(arc_buf_hdr_t *hdr, boolean_t incr,
	boolean_t state_only)
	{
	l2arc_buf_hdr_t *l2hdr = &hdr->b_l2hdr;
	l2arc_dev_t *dev = l2hdr->b_dev;
	uint64_t lsize = HDR_GET_LSIZE(hdr);
	uint64_t psize = HDR_GET_PSIZE(hdr);
	uint64_t asize = vdev_psize_to_asize(dev->l2ad_vdev, psize);
	arc_buf_contents_t type = hdr->b_type;
	int64_t lsize_s;
	int64_t psize_s;
	int64_t asize_s;

	if (incr) {
	lsize_s = lsize;
	psize_s = psize;
	asize_s = asize;
	} else {
	lsize_s = -lsize;
	psize_s = -psize;
	asize_s = -asize;
	}

	/* If the buffer is a prefetch, count it as such. */
	if (HDR_PREFETCH(hdr)) {
	ARCSTAT_INCR(arcstat_l2_prefetch_asize, asize_s);
	} else {
	/*
	* We use the value stored in the L2 header upon initial
	* caching in L2ARC. This value will be updated in case
	* an MRU/MRU_ghost buffer transitions to MFU but the L2ARC
	* metadata (log entry) cannot currently be updated. Having
	* the ARC state in the L2 header solves the problem of a
	* possibly absent L1 header (apparent in buffers restored
	* from persistent L2ARC).
	*/
	switch (hdr->b_l2hdr.b_arcs_state) {
	case ARC_STATE_MRU_GHOST:
	case ARC_STATE_MRU:
	ARCSTAT_INCR(arcstat_l2_mru_asize, asize_s);
	break;
	case ARC_STATE_MFU_GHOST:
	case ARC_STATE_MFU:
	ARCSTAT_INCR(arcstat_l2_mfu_asize, asize_s);
	break;
	default:
	break;
	}
	}

	if (state_only)
	return;

	ARCSTAT_INCR(arcstat_l2_psize, psize_s);
	ARCSTAT_INCR(arcstat_l2_lsize, lsize_s);

	switch (type) {
	case ARC_BUFC_DATA:
	ARCSTAT_INCR(arcstat_l2_bufc_data_asize, asize_s);
	break;
	case ARC_BUFC_METADATA:
	ARCSTAT_INCR(arcstat_l2_bufc_metadata_asize, asize_s);
	break;
	default:
	break;
	}
	}


	static void
	arc_hdr_l2hdr_destroy(arc_buf_hdr_t *hdr)
	{
	l2arc_buf_hdr_t *l2hdr = &hdr->b_l2hdr;
	l2arc_dev_t *dev = l2hdr->b_dev;
	uint64_t psize = HDR_GET_PSIZE(hdr);
	uint64_t asize = vdev_psize_to_asize(dev->l2ad_vdev, psize);

	ASSERT(MUTEX_HELD(&dev->l2ad_mtx));
	ASSERT(HDR_HAS_L2HDR(hdr));

	list_remove(&dev->l2ad_buflist, hdr);

	l2arc_hdr_arcstats_decrement(hdr);
	vdev_space_update(dev->l2ad_vdev, -asize, 0, 0);

	(void) zfs_refcount_remove_many(&dev->l2ad_alloc, arc_hdr_size(hdr),
	hdr);
	arc_hdr_clear_flags(hdr, ARC_FLAG_HAS_L2HDR);
	}

	static void
	arc_hdr_destroy(arc_buf_hdr_t *hdr)
	{
	if (HDR_HAS_L1HDR(hdr)) {
	ASSERT(hdr->b_l1hdr.b_buf == NULL \|\|
	hdr->b_l1hdr.b_bufcnt > 0);
	ASSERT(zfs_refcount_is_zero(&hdr->b_l1hdr.b_refcnt));
	ASSERT3P(hdr->b_l1hdr.b_state, ==, arc_anon);
	}
	ASSERT(!HDR_IO_IN_PROGRESS(hdr));
	ASSERT(!HDR_IN_HASH_TABLE(hdr));

	if (HDR_HAS_L2HDR(hdr)) {
	l2arc_dev_t *dev = hdr->b_l2hdr.b_dev;
	boolean_t buflist_held = MUTEX_HELD(&dev->l2ad_mtx);

	if (!buflist_held)
	mutex_enter(&dev->l2ad_mtx);

	/*
	* Even though we checked this conditional above, we
	* need to check this again now that we have the
	* l2ad_mtx. This is because we could be racing with
	* another thread calling l2arc_evict() which might have
	* destroyed this header's L2 portion as we were waiting
	* to acquire the l2ad_mtx. If that happens, we don't
	* want to re-destroy the header's L2 portion.
	*/
	if (HDR_HAS_L2HDR(hdr))
	arc_hdr_l2hdr_destroy(hdr);

	if (!buflist_held)
	mutex_exit(&dev->l2ad_mtx);
	}

	/*
	* The header's identify can only be safely discarded once it is no
	* longer discoverable. This requires removing it from the hash table
	* and the l2arc header list. After this point the hash lock can not
	* be used to protect the header.
	*/
	if (!HDR_EMPTY(hdr))
	buf_discard_identity(hdr);

	if (HDR_HAS_L1HDR(hdr)) {
	arc_cksum_free(hdr);

	while (hdr->b_l1hdr.b_buf != NULL)
	arc_buf_destroy_impl(hdr->b_l1hdr.b_buf);

	if (hdr->b_l1hdr.b_pabd != NULL)
	arc_hdr_free_abd(hdr, B_FALSE);

	if (HDR_HAS_RABD(hdr))
	arc_hdr_free_abd(hdr, B_TRUE);
	}

	ASSERT3P(hdr->b_hash_next, ==, NULL);
	if (HDR_HAS_L1HDR(hdr)) {
	ASSERT(!multilist_link_active(&hdr->b_l1hdr.b_arc_node));
	ASSERT3P(hdr->b_l1hdr.b_acb, ==, NULL);

	if (!HDR_PROTECTED(hdr)) {
	kmem_cache_free(hdr_full_cache, hdr);
	} else {
	kmem_cache_free(hdr_full_crypt_cache, hdr);
	}
	} else {
	kmem_cache_free(hdr_l2only_cache, hdr);
	}
	}

	void
	arc_buf_destroy(arc_buf_t buf, void tag)
	{
	arc_buf_hdr_t *hdr = buf->b_hdr;

	if (hdr->b_l1hdr.b_state == arc_anon) {
	ASSERT3U(hdr->b_l1hdr.b_bufcnt, ==, 1);
	ASSERT(!HDR_IO_IN_PROGRESS(hdr));
	VERIFY0(remove_reference(hdr, NULL, tag));
	arc_hdr_destroy(hdr);
	return;
	}

	kmutex_t *hash_lock = HDR_LOCK(hdr);
	mutex_enter(hash_lock);

	ASSERT3P(hdr, ==, buf->b_hdr);
	ASSERT(hdr->b_l1hdr.b_bufcnt > 0);
	ASSERT3P(hash_lock, ==, HDR_LOCK(hdr));
	ASSERT3P(hdr->b_l1hdr.b_state, !=, arc_anon);
	ASSERT3P(buf->b_data, !=, NULL);

	(void) remove_reference(hdr, hash_lock, tag);
	arc_buf_destroy_impl(buf);
	mutex_exit(hash_lock);
	}

	/*
	* Evict the arc_buf_hdr that is provided as a parameter. The resultant
	* state of the header is dependent on its state prior to entering this
	* function. The following transitions are possible:
	*
	* - arc_mru -> arc_mru_ghost
	* - arc_mfu -> arc_mfu_ghost
	* - arc_mru_ghost -> arc_l2c_only
	* - arc_mru_ghost -> deleted
	* - arc_mfu_ghost -> arc_l2c_only
	* - arc_mfu_ghost -> deleted
	*/
	static int64_t
	arc_evict_hdr(arc_buf_hdr_t hdr, kmutex_t hash_lock)
	{
	arc_state_t evicted_state, state;
	int64_t bytes_evicted = 0;
	int min_lifetime = HDR_PRESCIENT_PREFETCH(hdr) ?
	arc_min_prescient_prefetch_ms : arc_min_prefetch_ms;

	ASSERT(MUTEX_HELD(hash_lock));
	ASSERT(HDR_HAS_L1HDR(hdr));

	state = hdr->b_l1hdr.b_state;
	if (GHOST_STATE(state)) {
	ASSERT(!HDR_IO_IN_PROGRESS(hdr));
	ASSERT3P(hdr->b_l1hdr.b_buf, ==, NULL);

	/*
	* l2arc_write_buffers() relies on a header's L1 portion
	* (i.e. its b_pabd field) during it's write phase.
	* Thus, we cannot push a header onto the arc_l2c_only
	* state (removing its L1 piece) until the header is
	* done being written to the l2arc.
	*/
	if (HDR_HAS_L2HDR(hdr) && HDR_L2_WRITING(hdr)) {
	ARCSTAT_BUMP(arcstat_evict_l2_skip);
	return (bytes_evicted);
	}

	ARCSTAT_BUMP(arcstat_deleted);
	bytes_evicted += HDR_GET_LSIZE(hdr);

	DTRACE_PROBE1(arc__delete, arc_buf_hdr_t *, hdr);

	if (HDR_HAS_L2HDR(hdr)) {
	ASSERT(hdr->b_l1hdr.b_pabd == NULL);
	ASSERT(!HDR_HAS_RABD(hdr));
	/*
	* This buffer is cached on the 2nd Level ARC;
	* don't destroy the header.
	*/
	arc_change_state(arc_l2c_only, hdr, hash_lock);
	/*
	* dropping from L1+L2 cached to L2-only,
	* realloc to remove the L1 header.
	*/
	hdr = arc_hdr_realloc(hdr, hdr_full_cache,
	hdr_l2only_cache);
	} else {
	arc_change_state(arc_anon, hdr, hash_lock);
	arc_hdr_destroy(hdr);
	}
	return (bytes_evicted);
	}

	ASSERT(state == arc_mru \|\| state == arc_mfu);
	evicted_state = (state == arc_mru) ? arc_mru_ghost : arc_mfu_ghost;

	/* prefetch buffers have a minimum lifespan */
	if (HDR_IO_IN_PROGRESS(hdr) \|\|
	((hdr->b_flags & (ARC_FLAG_PREFETCH \| ARC_FLAG_INDIRECT)) &&
	ddi_get_lbolt() - hdr->b_l1hdr.b_arc_access <
	MSEC_TO_TICK(min_lifetime))) {
	ARCSTAT_BUMP(arcstat_evict_skip);
	return (bytes_evicted);
	}

	ASSERT0(zfs_refcount_count(&hdr->b_l1hdr.b_refcnt));
	while (hdr->b_l1hdr.b_buf) {
	arc_buf_t *buf = hdr->b_l1hdr.b_buf;
	if (!mutex_tryenter(&buf->b_evict_lock)) {
	ARCSTAT_BUMP(arcstat_mutex_miss);
	break;
	}
	if (buf->b_data != NULL)
	bytes_evicted += HDR_GET_LSIZE(hdr);
	mutex_exit(&buf->b_evict_lock);
	arc_buf_destroy_impl(buf);
	}

	if (HDR_HAS_L2HDR(hdr)) {
	ARCSTAT_INCR(arcstat_evict_l2_cached, HDR_GET_LSIZE(hdr));
	} else {
	if (l2arc_write_eligible(hdr->b_spa, hdr)) {
	ARCSTAT_INCR(arcstat_evict_l2_eligible,
	HDR_GET_LSIZE(hdr));

	switch (state->arcs_state) {
	case ARC_STATE_MRU:
	ARCSTAT_INCR(
	arcstat_evict_l2_eligible_mru,
	HDR_GET_LSIZE(hdr));
	break;
	case ARC_STATE_MFU:
	ARCSTAT_INCR(
	arcstat_evict_l2_eligible_mfu,
	HDR_GET_LSIZE(hdr));
	break;
	default:
	break;
	}
	} else {
	ARCSTAT_INCR(arcstat_evict_l2_ineligible,
	HDR_GET_LSIZE(hdr));
	}
	}

	if (hdr->b_l1hdr.b_bufcnt == 0) {
	arc_cksum_free(hdr);

	bytes_evicted += arc_hdr_size(hdr);

	/*
	* If this hdr is being evicted and has a compressed
	* buffer then we discard it here before we change states.
	* This ensures that the accounting is updated correctly
	* in arc_free_data_impl().
	*/
	if (hdr->b_l1hdr.b_pabd != NULL)
	arc_hdr_free_abd(hdr, B_FALSE);

	if (HDR_HAS_RABD(hdr))
	arc_hdr_free_abd(hdr, B_TRUE);

	arc_change_state(evicted_state, hdr, hash_lock);
	ASSERT(HDR_IN_HASH_TABLE(hdr));
	arc_hdr_set_flags(hdr, ARC_FLAG_IN_HASH_TABLE);
	DTRACE_PROBE1(arc__evict, arc_buf_hdr_t *, hdr);
	}

	return (bytes_evicted);
	}

	static void
	arc_set_need_free(void)
	{
	ASSERT(MUTEX_HELD(&arc_evict_lock));
	int64_t remaining = arc_free_memory() - arc_sys_free / 2;
	arc_evict_waiter_t *aw = list_tail(&arc_evict_waiters);
	if (aw == NULL) {
	arc_need_free = MAX(-remaining, 0);
	} else {
	arc_need_free =
	MAX(-remaining, (int64_t)(aw->aew_count - arc_evict_count));
	}
	}

	static uint64_t
	arc_evict_state_impl(multilist_t ml, int idx, arc_buf_hdr_t marker,
	uint64_t spa, int64_t bytes)
	{
	multilist_sublist_t *mls;
	uint64_t bytes_evicted = 0;
	arc_buf_hdr_t *hdr;
	kmutex_t *hash_lock;
	int evict_count = 0;

	ASSERT3P(marker, !=, NULL);
	IMPLY(bytes < 0, bytes == ARC_EVICT_ALL);

	mls = multilist_sublist_lock(ml, idx);

	for (hdr = multilist_sublist_prev(mls, marker); hdr != NULL;
	hdr = multilist_sublist_prev(mls, marker)) {
	if ((bytes != ARC_EVICT_ALL && bytes_evicted >= bytes) \|\|
	(evict_count >= zfs_arc_evict_batch_limit))
	break;

	/*
	* To keep our iteration location, move the marker
	* forward. Since we're not holding hdr's hash lock, we
	* must be very careful and not remove 'hdr' from the
	* sublist. Otherwise, other consumers might mistake the
	* 'hdr' as not being on a sublist when they call the
	* multilist_link_active() function (they all rely on
	* the hash lock protecting concurrent insertions and
	* removals). multilist_sublist_move_forward() was
	* specifically implemented to ensure this is the case
	* (only 'marker' will be removed and re-inserted).
	*/
	multilist_sublist_move_forward(mls, marker);

	/*
	* The only case where the b_spa field should ever be
	* zero, is the marker headers inserted by
	* arc_evict_state(). It's possible for multiple threads
	* to be calling arc_evict_state() concurrently (e.g.
	* dsl_pool_close() and zio_inject_fault()), so we must
	* skip any markers we see from these other threads.
	*/
	if (hdr->b_spa == 0)
	continue;

	/* we're only interested in evicting buffers of a certain spa */
	if (spa != 0 && hdr->b_spa != spa) {
	ARCSTAT_BUMP(arcstat_evict_skip);
	continue;
	}

	hash_lock = HDR_LOCK(hdr);

	/*
	* We aren't calling this function from any code path
	* that would already be holding a hash lock, so we're
	* asserting on this assumption to be defensive in case
	* this ever changes. Without this check, it would be
	* possible to incorrectly increment arcstat_mutex_miss
	* below (e.g. if the code changed such that we called
	* this function with a hash lock held).
	*/
	ASSERT(!MUTEX_HELD(hash_lock));

	if (mutex_tryenter(hash_lock)) {
	uint64_t evicted = arc_evict_hdr(hdr, hash_lock);
	mutex_exit(hash_lock);

	bytes_evicted += evicted;

	/*
	* If evicted is zero, arc_evict_hdr() must have
	* decided to skip this header, don't increment
	* evict_count in this case.
	*/
	if (evicted != 0)
	evict_count++;

	} else {
	ARCSTAT_BUMP(arcstat_mutex_miss);
	}
	}

	multilist_sublist_unlock(mls);

	/*
	* Increment the count of evicted bytes, and wake up any threads that
	* are waiting for the count to reach this value. Since the list is
	* ordered by ascending aew_count, we pop off the beginning of the
	* list until we reach the end, or a waiter that's past the current
	* "count". Doing this outside the loop reduces the number of times
	* we need to acquire the global arc_evict_lock.
	*
	* Only wake when there's sufficient free memory in the system
	* (specifically, arc_sys_free/2, which by default is a bit more than
	* 1/64th of RAM). See the comments in arc_wait_for_eviction().
	*/
	mutex_enter(&arc_evict_lock);
	arc_evict_count += bytes_evicted;

	if (arc_free_memory() > arc_sys_free / 2) {
	arc_evict_waiter_t *aw;
	while ((aw = list_head(&arc_evict_waiters)) != NULL &&
	aw->aew_count <= arc_evict_count) {
	list_remove(&arc_evict_waiters, aw);
	cv_broadcast(&aw->aew_cv);
	}
	}
	arc_set_need_free();
	mutex_exit(&arc_evict_lock);

	/*
	* If the ARC size is reduced from arc_c_max to arc_c_min (especially
	* if the average cached block is small), eviction can be on-CPU for
	* many seconds. To ensure that other threads that may be bound to
	* this CPU are able to make progress, make a voluntary preemption
	* call here.
	*/
	cond_resched();

	return (bytes_evicted);
	}

	/*
	* Evict buffers from the given arc state, until we've removed the
	* specified number of bytes. Move the removed buffers to the
	* appropriate evict state.
	*
	* This function makes a "best effort". It skips over any buffers
	* it can't get a hash_lock on, and so, may not catch all candidates.
	* It may also return without evicting as much space as requested.
	*
	* If bytes is specified using the special value ARC_EVICT_ALL, this
	* will evict all available (i.e. unlocked and evictable) buffers from
	* the given arc state; which is used by arc_flush().
	*/
	static uint64_t
	arc_evict_state(arc_state_t *state, uint64_t spa, int64_t bytes,
	arc_buf_contents_t type)
	{
	uint64_t total_evicted = 0;
	- multilist_t *ml = state->arcs_list[type];
	+ multilist_t *ml = &state->arcs_list[type];
	int num_sublists;
	arc_buf_hdr_t **markers;

	IMPLY(bytes < 0, bytes == ARC_EVICT_ALL);

	num_sublists = multilist_get_num_sublists(ml);

	/*
	* If we've tried to evict from each sublist, made some
	* progress, but still have not hit the target number of bytes
	* to evict, we want to keep trying. The markers allow us to
	* pick up where we left off for each individual sublist, rather
	* than starting from the tail each time.
	*/
	markers = kmem_zalloc(sizeof (markers) num_sublists, KM_SLEEP);
	for (int i = 0; i < num_sublists; i++) {
	multilist_sublist_t *mls;

	markers[i] = kmem_cache_alloc(hdr_full_cache, KM_SLEEP);

	/*
	* A b_spa of 0 is used to indicate that this header is
	* a marker. This fact is used in arc_evict_type() and
	* arc_evict_state_impl().
	*/
	markers[i]->b_spa = 0;

	mls = multilist_sublist_lock(ml, i);
	multilist_sublist_insert_tail(mls, markers[i]);
	multilist_sublist_unlock(mls);
	}

	/*
	* While we haven't hit our target number of bytes to evict, or
	* we're evicting all available buffers.
	*/
	while (total_evicted < bytes \|\| bytes == ARC_EVICT_ALL) {
	int sublist_idx = multilist_get_random_index(ml);
	uint64_t scan_evicted = 0;

	/*
	* Try to reduce pinned dnodes with a floor of arc_dnode_limit.
	* Request that 10% of the LRUs be scanned by the superblock
	* shrinker.
	*/
	if (type == ARC_BUFC_DATA && aggsum_compare(&astat_dnode_size,
	arc_dnode_size_limit) > 0) {
	arc_prune_async((aggsum_upper_bound(&astat_dnode_size) -
	arc_dnode_size_limit) / sizeof (dnode_t) /
	zfs_arc_dnode_reduce_percent);
	}

	/*
	* Start eviction using a randomly selected sublist,
	* this is to try and evenly balance eviction across all
	* sublists. Always starting at the same sublist
	* (e.g. index 0) would cause evictions to favor certain
	* sublists over others.
	*/
	for (int i = 0; i < num_sublists; i++) {
	uint64_t bytes_remaining;
	uint64_t bytes_evicted;

	if (bytes == ARC_EVICT_ALL)
	bytes_remaining = ARC_EVICT_ALL;
	else if (total_evicted < bytes)
	bytes_remaining = bytes - total_evicted;
	else
	break;

	bytes_evicted = arc_evict_state_impl(ml, sublist_idx,
	markers[sublist_idx], spa, bytes_remaining);

	scan_evicted += bytes_evicted;
	total_evicted += bytes_evicted;

	/* we've reached the end, wrap to the beginning */
	if (++sublist_idx >= num_sublists)
	sublist_idx = 0;
	}

	/*
	* If we didn't evict anything during this scan, we have
	* no reason to believe we'll evict more during another
	* scan, so break the loop.
	*/
	if (scan_evicted == 0) {
	/* This isn't possible, let's make that obvious */
	ASSERT3S(bytes, !=, 0);

	/*
	* When bytes is ARC_EVICT_ALL, the only way to
	* break the loop is when scan_evicted is zero.
	* In that case, we actually have evicted enough,
	* so we don't want to increment the kstat.
	*/
	if (bytes != ARC_EVICT_ALL) {
	ASSERT3S(total_evicted, <, bytes);
	ARCSTAT_BUMP(arcstat_evict_not_enough);
	}

	break;
	}
	}

	for (int i = 0; i < num_sublists; i++) {
	multilist_sublist_t *mls = multilist_sublist_lock(ml, i);
	multilist_sublist_remove(mls, markers[i]);
	multilist_sublist_unlock(mls);

	kmem_cache_free(hdr_full_cache, markers[i]);
	}
	kmem_free(markers, sizeof (markers) num_sublists);

	return (total_evicted);
	}

	/*
	* Flush all "evictable" data of the given type from the arc state
	* specified. This will not evict any "active" buffers (i.e. referenced).
	*
	* When 'retry' is set to B_FALSE, the function will make a single pass
	* over the state and evict any buffers that it can. Since it doesn't
	* continually retry the eviction, it might end up leaving some buffers
	* in the ARC due to lock misses.
	*
	* When 'retry' is set to B_TRUE, the function will continually retry the
	* eviction until all evictable buffers have been removed from the
	* state. As a result, if concurrent insertions into the state are
	* allowed (e.g. if the ARC isn't shutting down), this function might
	* wind up in an infinite loop, continually trying to evict buffers.
	*/
	static uint64_t
	arc_flush_state(arc_state_t *state, uint64_t spa, arc_buf_contents_t type,
	boolean_t retry)
	{
	uint64_t evicted = 0;

	while (zfs_refcount_count(&state->arcs_esize[type]) != 0) {
	evicted += arc_evict_state(state, spa, ARC_EVICT_ALL, type);

	if (!retry)
	break;
	}

	return (evicted);
	}

	/*
	* Evict the specified number of bytes from the state specified,
	* restricting eviction to the spa and type given. This function
	* prevents us from trying to evict more from a state's list than
	* is "evictable", and to skip evicting altogether when passed a
	* negative value for "bytes". In contrast, arc_evict_state() will
	* evict everything it can, when passed a negative value for "bytes".
	*/
	static uint64_t
	arc_evict_impl(arc_state_t *state, uint64_t spa, int64_t bytes,
	arc_buf_contents_t type)
	{
	int64_t delta;

	if (bytes > 0 && zfs_refcount_count(&state->arcs_esize[type]) > 0) {
	delta = MIN(zfs_refcount_count(&state->arcs_esize[type]),
	bytes);
	return (arc_evict_state(state, spa, delta, type));
	}

	return (0);
	}

	/*
	* The goal of this function is to evict enough meta data buffers from the
	* ARC in order to enforce the arc_meta_limit. Achieving this is slightly
	* more complicated than it appears because it is common for data buffers
	* to have holds on meta data buffers. In addition, dnode meta data buffers
	* will be held by the dnodes in the block preventing them from being freed.
	* This means we can't simply traverse the ARC and expect to always find
	* enough unheld meta data buffer to release.
	*
	* Therefore, this function has been updated to make alternating passes
	* over the ARC releasing data buffers and then newly unheld meta data
	* buffers. This ensures forward progress is maintained and meta_used
	* will decrease. Normally this is sufficient, but if required the ARC
	* will call the registered prune callbacks causing dentry and inodes to
	* be dropped from the VFS cache. This will make dnode meta data buffers
	* available for reclaim.
	*/
	static uint64_t
	arc_evict_meta_balanced(uint64_t meta_used)
	{
	int64_t delta, prune = 0, adjustmnt;
	uint64_t total_evicted = 0;
	arc_buf_contents_t type = ARC_BUFC_DATA;
	int restarts = MAX(zfs_arc_meta_adjust_restarts, 0);

	restart:
	/*
	* This slightly differs than the way we evict from the mru in
	* arc_evict because we don't have a "target" value (i.e. no
	* "meta" arc_p). As a result, I think we can completely
	* cannibalize the metadata in the MRU before we evict the
	* metadata from the MFU. I think we probably need to implement a
	* "metadata arc_p" value to do this properly.
	*/
	adjustmnt = meta_used - arc_meta_limit;

	if (adjustmnt > 0 &&
	zfs_refcount_count(&arc_mru->arcs_esize[type]) > 0) {
	delta = MIN(zfs_refcount_count(&arc_mru->arcs_esize[type]),
	adjustmnt);
	total_evicted += arc_evict_impl(arc_mru, 0, delta, type);
	adjustmnt -= delta;
	}

	/*
	* We can't afford to recalculate adjustmnt here. If we do,
	* new metadata buffers can sneak into the MRU or ANON lists,
	* thus penalize the MFU metadata. Although the fudge factor is
	* small, it has been empirically shown to be significant for
	* certain workloads (e.g. creating many empty directories). As
	* such, we use the original calculation for adjustmnt, and
	* simply decrement the amount of data evicted from the MRU.
	*/

	if (adjustmnt > 0 &&
	zfs_refcount_count(&arc_mfu->arcs_esize[type]) > 0) {
	delta = MIN(zfs_refcount_count(&arc_mfu->arcs_esize[type]),
	adjustmnt);
	total_evicted += arc_evict_impl(arc_mfu, 0, delta, type);
	}

	adjustmnt = meta_used - arc_meta_limit;

	if (adjustmnt > 0 &&
	zfs_refcount_count(&arc_mru_ghost->arcs_esize[type]) > 0) {
	delta = MIN(adjustmnt,
	zfs_refcount_count(&arc_mru_ghost->arcs_esize[type]));
	total_evicted += arc_evict_impl(arc_mru_ghost, 0, delta, type);
	adjustmnt -= delta;
	}

	if (adjustmnt > 0 &&
	zfs_refcount_count(&arc_mfu_ghost->arcs_esize[type]) > 0) {
	delta = MIN(adjustmnt,
	zfs_refcount_count(&arc_mfu_ghost->arcs_esize[type]));
	total_evicted += arc_evict_impl(arc_mfu_ghost, 0, delta, type);
	}

	/*
	* If after attempting to make the requested adjustment to the ARC
	* the meta limit is still being exceeded then request that the
	* higher layers drop some cached objects which have holds on ARC
	* meta buffers. Requests to the upper layers will be made with
	* increasingly large scan sizes until the ARC is below the limit.
	*/
	if (meta_used > arc_meta_limit) {
	if (type == ARC_BUFC_DATA) {
	type = ARC_BUFC_METADATA;
	} else {
	type = ARC_BUFC_DATA;

	if (zfs_arc_meta_prune) {
	prune += zfs_arc_meta_prune;
	arc_prune_async(prune);
	}
	}

	if (restarts > 0) {
	restarts--;
	goto restart;
	}
	}
	return (total_evicted);
	}

	/*
	* Evict metadata buffers from the cache, such that arc_meta_used is
	* capped by the arc_meta_limit tunable.
	*/
	static uint64_t
	arc_evict_meta_only(uint64_t meta_used)
	{
	uint64_t total_evicted = 0;
	int64_t target;

	/*
	* If we're over the meta limit, we want to evict enough
	* metadata to get back under the meta limit. We don't want to
	* evict so much that we drop the MRU below arc_p, though. If
	* we're over the meta limit more than we're over arc_p, we
	* evict some from the MRU here, and some from the MFU below.
	*/
	target = MIN((int64_t)(meta_used - arc_meta_limit),
	(int64_t)(zfs_refcount_count(&arc_anon->arcs_size) +
	zfs_refcount_count(&arc_mru->arcs_size) - arc_p));

	total_evicted += arc_evict_impl(arc_mru, 0, target, ARC_BUFC_METADATA);

	/*
	* Similar to the above, we want to evict enough bytes to get us
	* below the meta limit, but not so much as to drop us below the
	* space allotted to the MFU (which is defined as arc_c - arc_p).
	*/
	target = MIN((int64_t)(meta_used - arc_meta_limit),
	(int64_t)(zfs_refcount_count(&arc_mfu->arcs_size) -
	(arc_c - arc_p)));

	total_evicted += arc_evict_impl(arc_mfu, 0, target, ARC_BUFC_METADATA);

	return (total_evicted);
	}

	static uint64_t
	arc_evict_meta(uint64_t meta_used)
	{
	if (zfs_arc_meta_strategy == ARC_STRATEGY_META_ONLY)
	return (arc_evict_meta_only(meta_used));
	else
	return (arc_evict_meta_balanced(meta_used));
	}

	/*
	* Return the type of the oldest buffer in the given arc state
	*
	* This function will select a random sublist of type ARC_BUFC_DATA and
	* a random sublist of type ARC_BUFC_METADATA. The tail of each sublist
	* is compared, and the type which contains the "older" buffer will be
	* returned.
	*/
	static arc_buf_contents_t
	arc_evict_type(arc_state_t *state)
	{
	- multilist_t *data_ml = state->arcs_list[ARC_BUFC_DATA];
	- multilist_t *meta_ml = state->arcs_list[ARC_BUFC_METADATA];
	+ multilist_t *data_ml = &state->arcs_list[ARC_BUFC_DATA];
	+ multilist_t *meta_ml = &state->arcs_list[ARC_BUFC_METADATA];
	int data_idx = multilist_get_random_index(data_ml);
	int meta_idx = multilist_get_random_index(meta_ml);
	multilist_sublist_t *data_mls;
	multilist_sublist_t *meta_mls;
	arc_buf_contents_t type;
	arc_buf_hdr_t *data_hdr;
	arc_buf_hdr_t *meta_hdr;

	/*
	* We keep the sublist lock until we're finished, to prevent
	* the headers from being destroyed via arc_evict_state().
	*/
	data_mls = multilist_sublist_lock(data_ml, data_idx);
	meta_mls = multilist_sublist_lock(meta_ml, meta_idx);

	/*
	* These two loops are to ensure we skip any markers that
	* might be at the tail of the lists due to arc_evict_state().
	*/

	for (data_hdr = multilist_sublist_tail(data_mls); data_hdr != NULL;
	data_hdr = multilist_sublist_prev(data_mls, data_hdr)) {
	if (data_hdr->b_spa != 0)
	break;
	}

	for (meta_hdr = multilist_sublist_tail(meta_mls); meta_hdr != NULL;
	meta_hdr = multilist_sublist_prev(meta_mls, meta_hdr)) {
	if (meta_hdr->b_spa != 0)
	break;
	}

	if (data_hdr == NULL && meta_hdr == NULL) {
	type = ARC_BUFC_DATA;
	} else if (data_hdr == NULL) {
	ASSERT3P(meta_hdr, !=, NULL);
	type = ARC_BUFC_METADATA;
	} else if (meta_hdr == NULL) {
	ASSERT3P(data_hdr, !=, NULL);
	type = ARC_BUFC_DATA;
	} else {
	ASSERT3P(data_hdr, !=, NULL);
	ASSERT3P(meta_hdr, !=, NULL);

	/* The headers can't be on the sublist without an L1 header */
	ASSERT(HDR_HAS_L1HDR(data_hdr));
	ASSERT(HDR_HAS_L1HDR(meta_hdr));

	if (data_hdr->b_l1hdr.b_arc_access <
	meta_hdr->b_l1hdr.b_arc_access) {
	type = ARC_BUFC_DATA;
	} else {
	type = ARC_BUFC_METADATA;
	}
	}

	multilist_sublist_unlock(meta_mls);
	multilist_sublist_unlock(data_mls);

	return (type);
	}

	/*
	* Evict buffers from the cache, such that arc_size is capped by arc_c.
	*/
	static uint64_t
	arc_evict(void)
	{
	uint64_t total_evicted = 0;
	uint64_t bytes;
	int64_t target;
	uint64_t asize = aggsum_value(&arc_size);
	uint64_t ameta = aggsum_value(&arc_meta_used);

	/*
	* If we're over arc_meta_limit, we want to correct that before
	* potentially evicting data buffers below.
	*/
	total_evicted += arc_evict_meta(ameta);

	/*
	* Adjust MRU size
	*
	* If we're over the target cache size, we want to evict enough
	* from the list to get back to our target size. We don't want
	* to evict too much from the MRU, such that it drops below
	* arc_p. So, if we're over our target cache size more than
	* the MRU is over arc_p, we'll evict enough to get back to
	* arc_p here, and then evict more from the MFU below.
	*/
	target = MIN((int64_t)(asize - arc_c),
	(int64_t)(zfs_refcount_count(&arc_anon->arcs_size) +
	zfs_refcount_count(&arc_mru->arcs_size) + ameta - arc_p));

	/*
	* If we're below arc_meta_min, always prefer to evict data.
	* Otherwise, try to satisfy the requested number of bytes to
	* evict from the type which contains older buffers; in an
	* effort to keep newer buffers in the cache regardless of their
	* type. If we cannot satisfy the number of bytes from this
	* type, spill over into the next type.
	*/
	if (arc_evict_type(arc_mru) == ARC_BUFC_METADATA &&
	ameta > arc_meta_min) {
	bytes = arc_evict_impl(arc_mru, 0, target, ARC_BUFC_METADATA);
	total_evicted += bytes;

	/*
	* If we couldn't evict our target number of bytes from
	* metadata, we try to get the rest from data.
	*/
	target -= bytes;

	total_evicted +=
	arc_evict_impl(arc_mru, 0, target, ARC_BUFC_DATA);
	} else {
	bytes = arc_evict_impl(arc_mru, 0, target, ARC_BUFC_DATA);
	total_evicted += bytes;

	/*
	* If we couldn't evict our target number of bytes from
	* data, we try to get the rest from metadata.
	*/
	target -= bytes;

	total_evicted +=
	arc_evict_impl(arc_mru, 0, target, ARC_BUFC_METADATA);
	}

	/*
	* Re-sum ARC stats after the first round of evictions.
	*/
	asize = aggsum_value(&arc_size);
	ameta = aggsum_value(&arc_meta_used);


	/*
	* Adjust MFU size
	*
	* Now that we've tried to evict enough from the MRU to get its
	* size back to arc_p, if we're still above the target cache
	* size, we evict the rest from the MFU.
	*/
	target = asize - arc_c;

	if (arc_evict_type(arc_mfu) == ARC_BUFC_METADATA &&
	ameta > arc_meta_min) {
	bytes = arc_evict_impl(arc_mfu, 0, target, ARC_BUFC_METADATA);
	total_evicted += bytes;

	/*
	* If we couldn't evict our target number of bytes from
	* metadata, we try to get the rest from data.
	*/
	target -= bytes;

	total_evicted +=
	arc_evict_impl(arc_mfu, 0, target, ARC_BUFC_DATA);
	} else {
	bytes = arc_evict_impl(arc_mfu, 0, target, ARC_BUFC_DATA);
	total_evicted += bytes;

	/*
	* If we couldn't evict our target number of bytes from
	* data, we try to get the rest from data.
	*/
	target -= bytes;

	total_evicted +=
	arc_evict_impl(arc_mfu, 0, target, ARC_BUFC_METADATA);
	}

	/*
	* Adjust ghost lists
	*
	* In addition to the above, the ARC also defines target values
	* for the ghost lists. The sum of the mru list and mru ghost
	* list should never exceed the target size of the cache, and
	* the sum of the mru list, mfu list, mru ghost list, and mfu
	* ghost list should never exceed twice the target size of the
	* cache. The following logic enforces these limits on the ghost
	* caches, and evicts from them as needed.
	*/
	target = zfs_refcount_count(&arc_mru->arcs_size) +
	zfs_refcount_count(&arc_mru_ghost->arcs_size) - arc_c;

	bytes = arc_evict_impl(arc_mru_ghost, 0, target, ARC_BUFC_DATA);
	total_evicted += bytes;

	target -= bytes;

	total_evicted +=
	arc_evict_impl(arc_mru_ghost, 0, target, ARC_BUFC_METADATA);

	/*
	* We assume the sum of the mru list and mfu list is less than
	* or equal to arc_c (we enforced this above), which means we
	* can use the simpler of the two equations below:
	*
	* mru + mfu + mru ghost + mfu ghost <= 2 * arc_c
	* mru ghost + mfu ghost <= arc_c
	*/
	target = zfs_refcount_count(&arc_mru_ghost->arcs_size) +
	zfs_refcount_count(&arc_mfu_ghost->arcs_size) - arc_c;

	bytes = arc_evict_impl(arc_mfu_ghost, 0, target, ARC_BUFC_DATA);
	total_evicted += bytes;

	target -= bytes;

	total_evicted +=
	arc_evict_impl(arc_mfu_ghost, 0, target, ARC_BUFC_METADATA);

	return (total_evicted);
	}

	void
	arc_flush(spa_t *spa, boolean_t retry)
	{
	uint64_t guid = 0;

	/*
	* If retry is B_TRUE, a spa must not be specified since we have
	* no good way to determine if all of a spa's buffers have been
	* evicted from an arc state.
	*/
	ASSERT(!retry \|\| spa == 0);

	if (spa != NULL)
	guid = spa_load_guid(spa);

	(void) arc_flush_state(arc_mru, guid, ARC_BUFC_DATA, retry);
	(void) arc_flush_state(arc_mru, guid, ARC_BUFC_METADATA, retry);

	(void) arc_flush_state(arc_mfu, guid, ARC_BUFC_DATA, retry);
	(void) arc_flush_state(arc_mfu, guid, ARC_BUFC_METADATA, retry);

	(void) arc_flush_state(arc_mru_ghost, guid, ARC_BUFC_DATA, retry);
	(void) arc_flush_state(arc_mru_ghost, guid, ARC_BUFC_METADATA, retry);

	(void) arc_flush_state(arc_mfu_ghost, guid, ARC_BUFC_DATA, retry);
	(void) arc_flush_state(arc_mfu_ghost, guid, ARC_BUFC_METADATA, retry);
	}

	void
	arc_reduce_target_size(int64_t to_free)
	{
	uint64_t asize = aggsum_value(&arc_size);

	/*
	* All callers want the ARC to actually evict (at least) this much
	* memory. Therefore we reduce from the lower of the current size and
	* the target size. This way, even if arc_c is much higher than
	* arc_size (as can be the case after many calls to arc_freed(), we will
	* immediately have arc_c < arc_size and therefore the arc_evict_zthr
	* will evict.
	*/
	uint64_t c = MIN(arc_c, asize);

	if (c > to_free && c - to_free > arc_c_min) {
	arc_c = c - to_free;
	atomic_add_64(&arc_p, -(arc_p >> arc_shrink_shift));
	if (arc_p > arc_c)
	arc_p = (arc_c >> 1);
	ASSERT(arc_c >= arc_c_min);
	ASSERT((int64_t)arc_p >= 0);
	} else {
	arc_c = arc_c_min;
	}

	if (asize > arc_c) {
	/* See comment in arc_evict_cb_check() on why lock+flag */
	mutex_enter(&arc_evict_lock);
	arc_evict_needed = B_TRUE;
	mutex_exit(&arc_evict_lock);
	zthr_wakeup(arc_evict_zthr);
	}
	}

	/*
	* Determine if the system is under memory pressure and is asking
	* to reclaim memory. A return value of B_TRUE indicates that the system
	* is under memory pressure and that the arc should adjust accordingly.
	*/
	boolean_t
	arc_reclaim_needed(void)
	{
	return (arc_available_memory() < 0);
	}

	void
	arc_kmem_reap_soon(void)
	{
	size_t i;
	kmem_cache_t *prev_cache = NULL;
	kmem_cache_t *prev_data_cache = NULL;
	extern kmem_cache_t *zio_buf_cache[];
	extern kmem_cache_t *zio_data_buf_cache[];

	#ifdef _KERNEL
	if ((aggsum_compare(&arc_meta_used, arc_meta_limit) >= 0) &&
	zfs_arc_meta_prune) {
	/*
	* We are exceeding our meta-data cache limit.
	* Prune some entries to release holds on meta-data.
	*/
	arc_prune_async(zfs_arc_meta_prune);
	}
	#if defined(_ILP32)
	/*
	* Reclaim unused memory from all kmem caches.
	*/
	kmem_reap();
	#endif
	#endif

	for (i = 0; i < SPA_MAXBLOCKSIZE >> SPA_MINBLOCKSHIFT; i++) {
	#if defined(_ILP32)
	/* reach upper limit of cache size on 32-bit */
	if (zio_buf_cache[i] == NULL)
	break;
	#endif
	if (zio_buf_cache[i] != prev_cache) {
	prev_cache = zio_buf_cache[i];
	kmem_cache_reap_now(zio_buf_cache[i]);
	}
	if (zio_data_buf_cache[i] != prev_data_cache) {
	prev_data_cache = zio_data_buf_cache[i];
	kmem_cache_reap_now(zio_data_buf_cache[i]);
	}
	}
	kmem_cache_reap_now(buf_cache);
	kmem_cache_reap_now(hdr_full_cache);
	kmem_cache_reap_now(hdr_l2only_cache);
	kmem_cache_reap_now(zfs_btree_leaf_cache);
	abd_cache_reap_now();
	}

	/* ARGSUSED */
	static boolean_t
	arc_evict_cb_check(void arg, zthr_t zthr)
	{
	#ifdef ZFS_DEBUG
	/*
	* This is necessary in order to keep the kstat information
	* up to date for tools that display kstat data such as the
	* mdb ::arc dcmd and the Linux crash utility. These tools
	* typically do not call kstat's update function, but simply
	* dump out stats from the most recent update. Without
	* this call, these commands may show stale stats for the
	* anon, mru, mru_ghost, mfu, and mfu_ghost lists. Even
	* with this call, the data might be out of date if the
	* evict thread hasn't been woken recently; but that should
	* suffice. The arc_state_t structures can be queried
	* directly if more accurate information is needed.
	*/
	if (arc_ksp != NULL)
	arc_ksp->ks_update(arc_ksp, KSTAT_READ);
	#endif

	/*
	* We have to rely on arc_wait_for_eviction() to tell us when to
	* evict, rather than checking if we are overflowing here, so that we
	* are sure to not leave arc_wait_for_eviction() waiting on aew_cv.
	* If we have become "not overflowing" since arc_wait_for_eviction()
	* checked, we need to wake it up. We could broadcast the CV here,
	* but arc_wait_for_eviction() may have not yet gone to sleep. We
	* would need to use a mutex to ensure that this function doesn't
	* broadcast until arc_wait_for_eviction() has gone to sleep (e.g.
	* the arc_evict_lock). However, the lock ordering of such a lock
	* would necessarily be incorrect with respect to the zthr_lock,
	* which is held before this function is called, and is held by
	* arc_wait_for_eviction() when it calls zthr_wakeup().
	*/
	return (arc_evict_needed);
	}

	/*
	* Keep arc_size under arc_c by running arc_evict which evicts data
	* from the ARC.
	*/
	/* ARGSUSED */
	static void
	arc_evict_cb(void arg, zthr_t zthr)
	{
	uint64_t evicted = 0;
	fstrans_cookie_t cookie = spl_fstrans_mark();

	/* Evict from cache */
	evicted = arc_evict();

	/*
	* If evicted is zero, we couldn't evict anything
	* via arc_evict(). This could be due to hash lock
	* collisions, but more likely due to the majority of
	* arc buffers being unevictable. Therefore, even if
	* arc_size is above arc_c, another pass is unlikely to
	* be helpful and could potentially cause us to enter an
	* infinite loop. Additionally, zthr_iscancelled() is
	* checked here so that if the arc is shutting down, the
	* broadcast will wake any remaining arc evict waiters.
	*/
	mutex_enter(&arc_evict_lock);
	arc_evict_needed = !zthr_iscancelled(arc_evict_zthr) &&
	evicted > 0 && aggsum_compare(&arc_size, arc_c) > 0;
	if (!arc_evict_needed) {
	/*
	* We're either no longer overflowing, or we
	* can't evict anything more, so we should wake
	* arc_get_data_impl() sooner.
	*/
	arc_evict_waiter_t *aw;
	while ((aw = list_remove_head(&arc_evict_waiters)) != NULL) {
	cv_broadcast(&aw->aew_cv);
	}
	arc_set_need_free();
	}
	mutex_exit(&arc_evict_lock);
	spl_fstrans_unmark(cookie);
	}

	/* ARGSUSED */
	static boolean_t
	arc_reap_cb_check(void arg, zthr_t zthr)
	{
	int64_t free_memory = arc_available_memory();
	static int reap_cb_check_counter = 0;

	/*
	* If a kmem reap is already active, don't schedule more. We must
	* check for this because kmem_cache_reap_soon() won't actually
	* block on the cache being reaped (this is to prevent callers from
	* becoming implicitly blocked by a system-wide kmem reap -- which,
	* on a system with many, many full magazines, can take minutes).
	*/
	if (!kmem_cache_reap_active() && free_memory < 0) {

	arc_no_grow = B_TRUE;
	arc_warm = B_TRUE;
	/*
	* Wait at least zfs_grow_retry (default 5) seconds
	* before considering growing.
	*/
	arc_growtime = gethrtime() + SEC2NSEC(arc_grow_retry);
	return (B_TRUE);
	} else if (free_memory < arc_c >> arc_no_grow_shift) {
	arc_no_grow = B_TRUE;
	} else if (gethrtime() >= arc_growtime) {
	arc_no_grow = B_FALSE;
	}

	/*
	* Called unconditionally every 60 seconds to reclaim unused
	* zstd compression and decompression context. This is done
	* here to avoid the need for an independent thread.
	*/
	if (!((reap_cb_check_counter++) % 60))
	zfs_zstd_cache_reap_now();

	return (B_FALSE);
	}

	/*
	* Keep enough free memory in the system by reaping the ARC's kmem
	* caches. To cause more slabs to be reapable, we may reduce the
	* target size of the cache (arc_c), causing the arc_evict_cb()
	* to free more buffers.
	*/
	/* ARGSUSED */
	static void
	arc_reap_cb(void arg, zthr_t zthr)
	{
	int64_t free_memory;
	fstrans_cookie_t cookie = spl_fstrans_mark();

	/*
	* Kick off asynchronous kmem_reap()'s of all our caches.
	*/
	arc_kmem_reap_soon();

	/*
	* Wait at least arc_kmem_cache_reap_retry_ms between
	* arc_kmem_reap_soon() calls. Without this check it is possible to
	* end up in a situation where we spend lots of time reaping
	* caches, while we're near arc_c_min. Waiting here also gives the
	* subsequent free memory check a chance of finding that the
	* asynchronous reap has already freed enough memory, and we don't
	* need to call arc_reduce_target_size().
	*/
	delay((hz * arc_kmem_cache_reap_retry_ms + 999) / 1000);

	/*
	* Reduce the target size as needed to maintain the amount of free
	* memory in the system at a fraction of the arc_size (1/128th by
	* default). If oversubscribed (free_memory < 0) then reduce the
	* target arc_size by the deficit amount plus the fractional
	* amount. If free memory is positive but less than the fractional
	* amount, reduce by what is needed to hit the fractional amount.
	*/
	free_memory = arc_available_memory();

	int64_t to_free =
	(arc_c >> arc_shrink_shift) - free_memory;
	if (to_free > 0) {
	arc_reduce_target_size(to_free);
	}
	spl_fstrans_unmark(cookie);
	}

	#ifdef _KERNEL
	/*
	* Determine the amount of memory eligible for eviction contained in the
	* ARC. All clean data reported by the ghost lists can always be safely
	* evicted. Due to arc_c_min, the same does not hold for all clean data
	* contained by the regular mru and mfu lists.
	*
	* In the case of the regular mru and mfu lists, we need to report as
	* much clean data as possible, such that evicting that same reported
	* data will not bring arc_size below arc_c_min. Thus, in certain
	* circumstances, the total amount of clean data in the mru and mfu
	* lists might not actually be evictable.
	*
	* The following two distinct cases are accounted for:
	*
	* 1. The sum of the amount of dirty data contained by both the mru and
	* mfu lists, plus the ARC's other accounting (e.g. the anon list),
	* is greater than or equal to arc_c_min.
	* (i.e. amount of dirty data >= arc_c_min)
	*
	* This is the easy case; all clean data contained by the mru and mfu
	* lists is evictable. Evicting all clean data can only drop arc_size
	* to the amount of dirty data, which is greater than arc_c_min.
	*
	* 2. The sum of the amount of dirty data contained by both the mru and
	* mfu lists, plus the ARC's other accounting (e.g. the anon list),
	* is less than arc_c_min.
	* (i.e. arc_c_min > amount of dirty data)
	*
	* 2.1. arc_size is greater than or equal arc_c_min.
	* (i.e. arc_size >= arc_c_min > amount of dirty data)
	*
	* In this case, not all clean data from the regular mru and mfu
	* lists is actually evictable; we must leave enough clean data
	* to keep arc_size above arc_c_min. Thus, the maximum amount of
	* evictable data from the two lists combined, is exactly the
	* difference between arc_size and arc_c_min.
	*
	* 2.2. arc_size is less than arc_c_min
	* (i.e. arc_c_min > arc_size > amount of dirty data)
	*
	* In this case, none of the data contained in the mru and mfu
	* lists is evictable, even if it's clean. Since arc_size is
	* already below arc_c_min, evicting any more would only
	* increase this negative difference.
	*/

	#endif /* _KERNEL */

	/*
	* Adapt arc info given the number of bytes we are trying to add and
	* the state that we are coming from. This function is only called
	* when we are adding new content to the cache.
	*/
	static void
	arc_adapt(int bytes, arc_state_t *state)
	{
	int mult;
	uint64_t arc_p_min = (arc_c >> arc_p_min_shift);
	int64_t mrug_size = zfs_refcount_count(&arc_mru_ghost->arcs_size);
	int64_t mfug_size = zfs_refcount_count(&arc_mfu_ghost->arcs_size);

	ASSERT(bytes > 0);
	/*
	* Adapt the target size of the MRU list:
	* - if we just hit in the MRU ghost list, then increase
	* the target size of the MRU list.
	* - if we just hit in the MFU ghost list, then increase
	* the target size of the MFU list by decreasing the
	* target size of the MRU list.
	*/
	if (state == arc_mru_ghost) {
	mult = (mrug_size >= mfug_size) ? 1 : (mfug_size / mrug_size);
	if (!zfs_arc_p_dampener_disable)
	mult = MIN(mult, 10); /* avoid wild arc_p adjustment */

	arc_p = MIN(arc_c - arc_p_min, arc_p + bytes * mult);
	} else if (state == arc_mfu_ghost) {
	uint64_t delta;

	mult = (mfug_size >= mrug_size) ? 1 : (mrug_size / mfug_size);
	if (!zfs_arc_p_dampener_disable)
	mult = MIN(mult, 10);

	delta = MIN(bytes * mult, arc_p);
	arc_p = MAX(arc_p_min, arc_p - delta);
	}
	ASSERT((int64_t)arc_p >= 0);

	/*
	* Wake reap thread if we do not have any available memory
	*/
	if (arc_reclaim_needed()) {
	zthr_wakeup(arc_reap_zthr);
	return;
	}

	if (arc_no_grow)
	return;

	if (arc_c >= arc_c_max)
	return;

	/*
	* If we're within (2 * maxblocksize) bytes of the target
	* cache size, increment the target cache size
	*/
	ASSERT3U(arc_c, >=, 2ULL << SPA_MAXBLOCKSHIFT);
	if (aggsum_upper_bound(&arc_size) >=
	arc_c - (2ULL << SPA_MAXBLOCKSHIFT)) {
	atomic_add_64(&arc_c, (int64_t)bytes);
	if (arc_c > arc_c_max)
	arc_c = arc_c_max;
	else if (state == arc_anon)
	atomic_add_64(&arc_p, (int64_t)bytes);
	if (arc_p > arc_c)
	arc_p = arc_c;
	}
	ASSERT((int64_t)arc_p >= 0);
	}

	/*
	* Check if arc_size has grown past our upper threshold, determined by
	* zfs_arc_overflow_shift.
	*/
	boolean_t
	arc_is_overflowing(void)
	{
	/* Always allow at least one block of overflow */
	int64_t overflow = MAX(SPA_MAXBLOCKSIZE,
	arc_c >> zfs_arc_overflow_shift);

	/*
	* We just compare the lower bound here for performance reasons. Our
	* primary goals are to make sure that the arc never grows without
	* bound, and that it can reach its maximum size. This check
	* accomplishes both goals. The maximum amount we could run over by is
	* 2 * aggsum_borrow_multiplier * NUM_CPUS * the average size of a block
	* in the ARC. In practice, that's in the tens of MB, which is low
	* enough to be safe.
	*/
	return (aggsum_lower_bound(&arc_size) >= (int64_t)arc_c + overflow);
	}

	static abd_t *
	arc_get_data_abd(arc_buf_hdr_t hdr, uint64_t size, void tag,
	boolean_t do_adapt)
	{
	arc_buf_contents_t type = arc_buf_type(hdr);

	arc_get_data_impl(hdr, size, tag, do_adapt);
	if (type == ARC_BUFC_METADATA) {
	return (abd_alloc(size, B_TRUE));
	} else {
	ASSERT(type == ARC_BUFC_DATA);
	return (abd_alloc(size, B_FALSE));
	}
	}

	static void *
	arc_get_data_buf(arc_buf_hdr_t hdr, uint64_t size, void tag)
	{
	arc_buf_contents_t type = arc_buf_type(hdr);

	arc_get_data_impl(hdr, size, tag, B_TRUE);
	if (type == ARC_BUFC_METADATA) {
	return (zio_buf_alloc(size));
	} else {
	ASSERT(type == ARC_BUFC_DATA);
	return (zio_data_buf_alloc(size));
	}
	}

	/*
	* Wait for the specified amount of data (in bytes) to be evicted from the
	* ARC, and for there to be sufficient free memory in the system. Waiting for
	* eviction ensures that the memory used by the ARC decreases. Waiting for
	* free memory ensures that the system won't run out of free pages, regardless
	* of ARC behavior and settings. See arc_lowmem_init().
	*/
	void
	arc_wait_for_eviction(uint64_t amount)
	{
	mutex_enter(&arc_evict_lock);
	if (arc_is_overflowing()) {
	arc_evict_needed = B_TRUE;
	zthr_wakeup(arc_evict_zthr);

	if (amount != 0) {
	arc_evict_waiter_t aw;
	list_link_init(&aw.aew_node);
	cv_init(&aw.aew_cv, NULL, CV_DEFAULT, NULL);

	uint64_t last_count = 0;
	if (!list_is_empty(&arc_evict_waiters)) {
	arc_evict_waiter_t *last =
	list_tail(&arc_evict_waiters);
	last_count = last->aew_count;
	}
	/*
	* Note, the last waiter's count may be less than
	* arc_evict_count if we are low on memory in which
	* case arc_evict_state_impl() may have deferred
	* wakeups (but still incremented arc_evict_count).
	*/
	aw.aew_count =
	MAX(last_count, arc_evict_count) + amount;

	list_insert_tail(&arc_evict_waiters, &aw);

	arc_set_need_free();

	DTRACE_PROBE3(arc__wait__for__eviction,
	uint64_t, amount,
	uint64_t, arc_evict_count,
	uint64_t, aw.aew_count);

	/*
	* We will be woken up either when arc_evict_count
	* reaches aew_count, or when the ARC is no longer
	* overflowing and eviction completes.
	*/
	cv_wait(&aw.aew_cv, &arc_evict_lock);

	/*
	* In case of "false" wakeup, we will still be on the
	* list.
	*/
	if (list_link_active(&aw.aew_node))
	list_remove(&arc_evict_waiters, &aw);

	cv_destroy(&aw.aew_cv);
	}
	}
	mutex_exit(&arc_evict_lock);
	}

	/*
	* Allocate a block and return it to the caller. If we are hitting the
	* hard limit for the cache size, we must sleep, waiting for the eviction
	* thread to catch up. If we're past the target size but below the hard
	* limit, we'll only signal the reclaim thread and continue on.
	*/
	static void
	arc_get_data_impl(arc_buf_hdr_t hdr, uint64_t size, void tag,
	boolean_t do_adapt)
	{
	arc_state_t *state = hdr->b_l1hdr.b_state;
	arc_buf_contents_t type = arc_buf_type(hdr);

	if (do_adapt)
	arc_adapt(size, state);

	/*
	* If arc_size is currently overflowing, we must be adding data
	* faster than we are evicting. To ensure we don't compound the
	* problem by adding more data and forcing arc_size to grow even
	* further past it's target size, we wait for the eviction thread to
	* make some progress. We also wait for there to be sufficient free
	* memory in the system, as measured by arc_free_memory().
	*
	* Specifically, we wait for zfs_arc_eviction_pct percent of the
	* requested size to be evicted. This should be more than 100%, to
	* ensure that that progress is also made towards getting arc_size
	* under arc_c. See the comment above zfs_arc_eviction_pct.
	*
	* We do the overflowing check without holding the arc_evict_lock to
	* reduce lock contention in this hot path. Note that
	* arc_wait_for_eviction() will acquire the lock and check again to
	* ensure we are truly overflowing before blocking.
	*/
	if (arc_is_overflowing()) {
	arc_wait_for_eviction(size *
	zfs_arc_eviction_pct / 100);
	}

	VERIFY3U(hdr->b_type, ==, type);
	if (type == ARC_BUFC_METADATA) {
	arc_space_consume(size, ARC_SPACE_META);
	} else {
	arc_space_consume(size, ARC_SPACE_DATA);
	}

	/*
	* Update the state size. Note that ghost states have a
	* "ghost size" and so don't need to be updated.
	*/
	if (!GHOST_STATE(state)) {

	(void) zfs_refcount_add_many(&state->arcs_size, size, tag);

	/*
	* If this is reached via arc_read, the link is
	* protected by the hash lock. If reached via
	* arc_buf_alloc, the header should not be accessed by
	* any other thread. And, if reached via arc_read_done,
	* the hash lock will protect it if it's found in the
	* hash table; otherwise no other thread should be
	* trying to [add\|remove]_reference it.
	*/
	if (multilist_link_active(&hdr->b_l1hdr.b_arc_node)) {
	ASSERT(zfs_refcount_is_zero(&hdr->b_l1hdr.b_refcnt));
	(void) zfs_refcount_add_many(&state->arcs_esize[type],
	size, tag);
	}

	/*
	* If we are growing the cache, and we are adding anonymous
	* data, and we have outgrown arc_p, update arc_p
	*/
	if (aggsum_upper_bound(&arc_size) < arc_c &&
	hdr->b_l1hdr.b_state == arc_anon &&
	(zfs_refcount_count(&arc_anon->arcs_size) +
	zfs_refcount_count(&arc_mru->arcs_size) > arc_p))
	arc_p = MIN(arc_c, arc_p + size);
	}
	}

	static void
	arc_free_data_abd(arc_buf_hdr_t hdr, abd_t abd, uint64_t size, void *tag)
	{
	arc_free_data_impl(hdr, size, tag);
	abd_free(abd);
	}

	static void
	arc_free_data_buf(arc_buf_hdr_t hdr, void buf, uint64_t size, void *tag)
	{
	arc_buf_contents_t type = arc_buf_type(hdr);

	arc_free_data_impl(hdr, size, tag);
	if (type == ARC_BUFC_METADATA) {
	zio_buf_free(buf, size);
	} else {
	ASSERT(type == ARC_BUFC_DATA);
	zio_data_buf_free(buf, size);
	}
	}

	/*
	* Free the arc data buffer.
	*/
	static void
	arc_free_data_impl(arc_buf_hdr_t hdr, uint64_t size, void tag)
	{
	arc_state_t *state = hdr->b_l1hdr.b_state;
	arc_buf_contents_t type = arc_buf_type(hdr);

	/* protected by hash lock, if in the hash table */
	if (multilist_link_active(&hdr->b_l1hdr.b_arc_node)) {
	ASSERT(zfs_refcount_is_zero(&hdr->b_l1hdr.b_refcnt));
	ASSERT(state != arc_anon && state != arc_l2c_only);

	(void) zfs_refcount_remove_many(&state->arcs_esize[type],
	size, tag);
	}
	(void) zfs_refcount_remove_many(&state->arcs_size, size, tag);

	VERIFY3U(hdr->b_type, ==, type);
	if (type == ARC_BUFC_METADATA) {
	arc_space_return(size, ARC_SPACE_META);
	} else {
	ASSERT(type == ARC_BUFC_DATA);
	arc_space_return(size, ARC_SPACE_DATA);
	}
	}

	/*
	* This routine is called whenever a buffer is accessed.
	* NOTE: the hash lock is dropped in this function.
	*/
	static void
	arc_access(arc_buf_hdr_t hdr, kmutex_t hash_lock)
	{
	clock_t now;

	ASSERT(MUTEX_HELD(hash_lock));
	ASSERT(HDR_HAS_L1HDR(hdr));

	if (hdr->b_l1hdr.b_state == arc_anon) {
	/*
	* This buffer is not in the cache, and does not
	* appear in our "ghost" list. Add the new buffer
	* to the MRU state.
	*/

	ASSERT0(hdr->b_l1hdr.b_arc_access);
	hdr->b_l1hdr.b_arc_access = ddi_get_lbolt();
	DTRACE_PROBE1(new_state__mru, arc_buf_hdr_t *, hdr);
	arc_change_state(arc_mru, hdr, hash_lock);

	} else if (hdr->b_l1hdr.b_state == arc_mru) {
	now = ddi_get_lbolt();

	/*
	* If this buffer is here because of a prefetch, then either:
	* - clear the flag if this is a "referencing" read
	* (any subsequent access will bump this into the MFU state).
	* or
	* - move the buffer to the head of the list if this is
	* another prefetch (to make it less likely to be evicted).
	*/
	if (HDR_PREFETCH(hdr) \|\| HDR_PRESCIENT_PREFETCH(hdr)) {
	if (zfs_refcount_count(&hdr->b_l1hdr.b_refcnt) == 0) {
	/* link protected by hash lock */
	ASSERT(multilist_link_active(
	&hdr->b_l1hdr.b_arc_node));
	} else {
	if (HDR_HAS_L2HDR(hdr))
	l2arc_hdr_arcstats_decrement_state(hdr);
	arc_hdr_clear_flags(hdr,
	ARC_FLAG_PREFETCH \|
	ARC_FLAG_PRESCIENT_PREFETCH);
	atomic_inc_32(&hdr->b_l1hdr.b_mru_hits);
	ARCSTAT_BUMP(arcstat_mru_hits);
	if (HDR_HAS_L2HDR(hdr))
	l2arc_hdr_arcstats_increment_state(hdr);
	}
	hdr->b_l1hdr.b_arc_access = now;
	return;
	}

	/*
	* This buffer has been "accessed" only once so far,
	* but it is still in the cache. Move it to the MFU
	* state.
	*/
	if (ddi_time_after(now, hdr->b_l1hdr.b_arc_access +
	ARC_MINTIME)) {
	/*
	* More than 125ms have passed since we
	* instantiated this buffer. Move it to the
	* most frequently used state.
	*/
	hdr->b_l1hdr.b_arc_access = now;
	DTRACE_PROBE1(new_state__mfu, arc_buf_hdr_t *, hdr);
	arc_change_state(arc_mfu, hdr, hash_lock);
	}
	atomic_inc_32(&hdr->b_l1hdr.b_mru_hits);
	ARCSTAT_BUMP(arcstat_mru_hits);
	} else if (hdr->b_l1hdr.b_state == arc_mru_ghost) {
	arc_state_t *new_state;
	/*
	* This buffer has been "accessed" recently, but
	* was evicted from the cache. Move it to the
	* MFU state.
	*/
	if (HDR_PREFETCH(hdr) \|\| HDR_PRESCIENT_PREFETCH(hdr)) {
	new_state = arc_mru;
	if (zfs_refcount_count(&hdr->b_l1hdr.b_refcnt) > 0) {
	if (HDR_HAS_L2HDR(hdr))
	l2arc_hdr_arcstats_decrement_state(hdr);
	arc_hdr_clear_flags(hdr,
	ARC_FLAG_PREFETCH \|
	ARC_FLAG_PRESCIENT_PREFETCH);
	if (HDR_HAS_L2HDR(hdr))
	l2arc_hdr_arcstats_increment_state(hdr);
	}
	DTRACE_PROBE1(new_state__mru, arc_buf_hdr_t *, hdr);
	} else {
	new_state = arc_mfu;
	DTRACE_PROBE1(new_state__mfu, arc_buf_hdr_t *, hdr);
	}

	hdr->b_l1hdr.b_arc_access = ddi_get_lbolt();
	arc_change_state(new_state, hdr, hash_lock);

	atomic_inc_32(&hdr->b_l1hdr.b_mru_ghost_hits);
	ARCSTAT_BUMP(arcstat_mru_ghost_hits);
	} else if (hdr->b_l1hdr.b_state == arc_mfu) {
	/*
	* This buffer has been accessed more than once and is
	* still in the cache. Keep it in the MFU state.
	*
	* NOTE: an add_reference() that occurred when we did
	* the arc_read() will have kicked this off the list.
	* If it was a prefetch, we will explicitly move it to
	* the head of the list now.
	*/

	atomic_inc_32(&hdr->b_l1hdr.b_mfu_hits);
	ARCSTAT_BUMP(arcstat_mfu_hits);
	hdr->b_l1hdr.b_arc_access = ddi_get_lbolt();
	} else if (hdr->b_l1hdr.b_state == arc_mfu_ghost) {
	arc_state_t *new_state = arc_mfu;
	/*
	* This buffer has been accessed more than once but has
	* been evicted from the cache. Move it back to the
	* MFU state.
	*/

	if (HDR_PREFETCH(hdr) \|\| HDR_PRESCIENT_PREFETCH(hdr)) {
	/*
	* This is a prefetch access...
	* move this block back to the MRU state.
	*/
	new_state = arc_mru;
	}

	hdr->b_l1hdr.b_arc_access = ddi_get_lbolt();
	DTRACE_PROBE1(new_state__mfu, arc_buf_hdr_t *, hdr);
	arc_change_state(new_state, hdr, hash_lock);

	atomic_inc_32(&hdr->b_l1hdr.b_mfu_ghost_hits);
	ARCSTAT_BUMP(arcstat_mfu_ghost_hits);
	} else if (hdr->b_l1hdr.b_state == arc_l2c_only) {
	/*
	* This buffer is on the 2nd Level ARC.
	*/

	hdr->b_l1hdr.b_arc_access = ddi_get_lbolt();
	DTRACE_PROBE1(new_state__mfu, arc_buf_hdr_t *, hdr);
	arc_change_state(arc_mfu, hdr, hash_lock);
	} else {
	cmn_err(CE_PANIC, "invalid arc state 0x%p",
	hdr->b_l1hdr.b_state);
	}
	}

	/*
	* This routine is called by dbuf_hold() to update the arc_access() state
	* which otherwise would be skipped for entries in the dbuf cache.
	*/
	void
	arc_buf_access(arc_buf_t *buf)
	{
	mutex_enter(&buf->b_evict_lock);
	arc_buf_hdr_t *hdr = buf->b_hdr;

	/*
	* Avoid taking the hash_lock when possible as an optimization.
	* The header must be checked again under the hash_lock in order
	* to handle the case where it is concurrently being released.
	*/
	if (hdr->b_l1hdr.b_state == arc_anon \|\| HDR_EMPTY(hdr)) {
	mutex_exit(&buf->b_evict_lock);
	return;
	}

	kmutex_t *hash_lock = HDR_LOCK(hdr);
	mutex_enter(hash_lock);

	if (hdr->b_l1hdr.b_state == arc_anon \|\| HDR_EMPTY(hdr)) {
	mutex_exit(hash_lock);
	mutex_exit(&buf->b_evict_lock);
	ARCSTAT_BUMP(arcstat_access_skip);
	return;
	}

	mutex_exit(&buf->b_evict_lock);

	ASSERT(hdr->b_l1hdr.b_state == arc_mru \|\|
	hdr->b_l1hdr.b_state == arc_mfu);

	DTRACE_PROBE1(arc__hit, arc_buf_hdr_t *, hdr);
	arc_access(hdr, hash_lock);
	mutex_exit(hash_lock);

	ARCSTAT_BUMP(arcstat_hits);
	ARCSTAT_CONDSTAT(!HDR_PREFETCH(hdr) && !HDR_PRESCIENT_PREFETCH(hdr),
	demand, prefetch, !HDR_ISTYPE_METADATA(hdr), data, metadata, hits);
	}

	/* a generic arc_read_done_func_t which you can use */
	/* ARGSUSED */
	void
	arc_bcopy_func(zio_t zio, const zbookmark_phys_t zb, const blkptr_t *bp,
	arc_buf_t buf, void arg)
	{
	if (buf == NULL)
	return;

	bcopy(buf->b_data, arg, arc_buf_size(buf));
	arc_buf_destroy(buf, arg);
	}

	/* a generic arc_read_done_func_t */
	/* ARGSUSED */
	void
	arc_getbuf_func(zio_t zio, const zbookmark_phys_t zb, const blkptr_t *bp,
	arc_buf_t buf, void arg)
	{
	arc_buf_t **bufp = arg;

	if (buf == NULL) {
	ASSERT(zio == NULL \|\| zio->io_error != 0);
	*bufp = NULL;
	} else {
	ASSERT(zio == NULL \|\| zio->io_error == 0);
	*bufp = buf;
	ASSERT(buf->b_data != NULL);
	}
	}

	static void
	arc_hdr_verify(arc_buf_hdr_t hdr, blkptr_t bp)
	{
	if (BP_IS_HOLE(bp) \|\| BP_IS_EMBEDDED(bp)) {
	ASSERT3U(HDR_GET_PSIZE(hdr), ==, 0);
	ASSERT3U(arc_hdr_get_compress(hdr), ==, ZIO_COMPRESS_OFF);
	} else {
	if (HDR_COMPRESSION_ENABLED(hdr)) {
	ASSERT3U(arc_hdr_get_compress(hdr), ==,
	BP_GET_COMPRESS(bp));
	}
	ASSERT3U(HDR_GET_LSIZE(hdr), ==, BP_GET_LSIZE(bp));
	ASSERT3U(HDR_GET_PSIZE(hdr), ==, BP_GET_PSIZE(bp));
	ASSERT3U(!!HDR_PROTECTED(hdr), ==, BP_IS_PROTECTED(bp));
	}
	}

	static void
	arc_read_done(zio_t *zio)
	{
	blkptr_t *bp = zio->io_bp;
	arc_buf_hdr_t *hdr = zio->io_private;
	kmutex_t *hash_lock = NULL;
	arc_callback_t *callback_list;
	arc_callback_t *acb;
	boolean_t freeable = B_FALSE;

	/*
	* The hdr was inserted into hash-table and removed from lists
	* prior to starting I/O. We should find this header, since
	* it's in the hash table, and it should be legit since it's
	* not possible to evict it during the I/O. The only possible
	* reason for it not to be found is if we were freed during the
	* read.
	*/
	if (HDR_IN_HASH_TABLE(hdr)) {
	arc_buf_hdr_t *found;

	ASSERT3U(hdr->b_birth, ==, BP_PHYSICAL_BIRTH(zio->io_bp));
	ASSERT3U(hdr->b_dva.dva_word[0], ==,
	BP_IDENTITY(zio->io_bp)->dva_word[0]);
	ASSERT3U(hdr->b_dva.dva_word[1], ==,
	BP_IDENTITY(zio->io_bp)->dva_word[1]);

	found = buf_hash_find(hdr->b_spa, zio->io_bp, &hash_lock);

	ASSERT((found == hdr &&
	DVA_EQUAL(&hdr->b_dva, BP_IDENTITY(zio->io_bp))) \|\|
	(found == hdr && HDR_L2_READING(hdr)));
	ASSERT3P(hash_lock, !=, NULL);
	}

	if (BP_IS_PROTECTED(bp)) {
	hdr->b_crypt_hdr.b_ot = BP_GET_TYPE(bp);
	hdr->b_crypt_hdr.b_dsobj = zio->io_bookmark.zb_objset;
	zio_crypt_decode_params_bp(bp, hdr->b_crypt_hdr.b_salt,
	hdr->b_crypt_hdr.b_iv);

	if (BP_GET_TYPE(bp) == DMU_OT_INTENT_LOG) {
	void *tmpbuf;

	tmpbuf = abd_borrow_buf_copy(zio->io_abd,
	sizeof (zil_chain_t));
	zio_crypt_decode_mac_zil(tmpbuf,
	hdr->b_crypt_hdr.b_mac);
	abd_return_buf(zio->io_abd, tmpbuf,
	sizeof (zil_chain_t));
	} else {
	zio_crypt_decode_mac_bp(bp, hdr->b_crypt_hdr.b_mac);
	}
	}

	if (zio->io_error == 0) {
	/* byteswap if necessary */
	if (BP_SHOULD_BYTESWAP(zio->io_bp)) {
	if (BP_GET_LEVEL(zio->io_bp) > 0) {
	hdr->b_l1hdr.b_byteswap = DMU_BSWAP_UINT64;
	} else {
	hdr->b_l1hdr.b_byteswap =
	DMU_OT_BYTESWAP(BP_GET_TYPE(zio->io_bp));
	}
	} else {
	hdr->b_l1hdr.b_byteswap = DMU_BSWAP_NUMFUNCS;
	}
	if (!HDR_L2_READING(hdr)) {
	hdr->b_complevel = zio->io_prop.zp_complevel;
	}
	}

	arc_hdr_clear_flags(hdr, ARC_FLAG_L2_EVICTED);
	if (l2arc_noprefetch && HDR_PREFETCH(hdr))
	arc_hdr_clear_flags(hdr, ARC_FLAG_L2CACHE);

	callback_list = hdr->b_l1hdr.b_acb;
	ASSERT3P(callback_list, !=, NULL);

	if (hash_lock && zio->io_error == 0 &&
	hdr->b_l1hdr.b_state == arc_anon) {
	/*
	* Only call arc_access on anonymous buffers. This is because
	* if we've issued an I/O for an evicted buffer, we've already
	* called arc_access (to prevent any simultaneous readers from
	* getting confused).
	*/
	arc_access(hdr, hash_lock);
	}

	/*
	* If a read request has a callback (i.e. acb_done is not NULL), then we
	* make a buf containing the data according to the parameters which were
	* passed in. The implementation of arc_buf_alloc_impl() ensures that we
	* aren't needlessly decompressing the data multiple times.
	*/
	int callback_cnt = 0;
	for (acb = callback_list; acb != NULL; acb = acb->acb_next) {
	if (!acb->acb_done \|\| acb->acb_nobuf)
	continue;

	callback_cnt++;

	if (zio->io_error != 0)
	continue;

	int error = arc_buf_alloc_impl(hdr, zio->io_spa,
	&acb->acb_zb, acb->acb_private, acb->acb_encrypted,
	acb->acb_compressed, acb->acb_noauth, B_TRUE,
	&acb->acb_buf);

	/*
	* Assert non-speculative zios didn't fail because an
	* encryption key wasn't loaded
	*/
	ASSERT((zio->io_flags & ZIO_FLAG_SPECULATIVE) \|\|
	error != EACCES);

	/*
	* If we failed to decrypt, report an error now (as the zio
	* layer would have done if it had done the transforms).
	*/
	if (error == ECKSUM) {
	ASSERT(BP_IS_PROTECTED(bp));
	error = SET_ERROR(EIO);
	if ((zio->io_flags & ZIO_FLAG_SPECULATIVE) == 0) {
	spa_log_error(zio->io_spa, &acb->acb_zb);
	(void) zfs_ereport_post(
	FM_EREPORT_ZFS_AUTHENTICATION,
	zio->io_spa, NULL, &acb->acb_zb, zio, 0);
	}
	}

	if (error != 0) {
	/*
	* Decompression or decryption failed. Set
	* io_error so that when we call acb_done
	* (below), we will indicate that the read
	* failed. Note that in the unusual case
	* where one callback is compressed and another
	* uncompressed, we will mark all of them
	* as failed, even though the uncompressed
	* one can't actually fail. In this case,
	* the hdr will not be anonymous, because
	* if there are multiple callbacks, it's
	* because multiple threads found the same
	* arc buf in the hash table.
	*/
	zio->io_error = error;
	}
	}

	/*
	* If there are multiple callbacks, we must have the hash lock,
	* because the only way for multiple threads to find this hdr is
	* in the hash table. This ensures that if there are multiple
	* callbacks, the hdr is not anonymous. If it were anonymous,
	* we couldn't use arc_buf_destroy() in the error case below.
	*/
	ASSERT(callback_cnt < 2 \|\| hash_lock != NULL);

	hdr->b_l1hdr.b_acb = NULL;
	arc_hdr_clear_flags(hdr, ARC_FLAG_IO_IN_PROGRESS);
	if (callback_cnt == 0)
	ASSERT(hdr->b_l1hdr.b_pabd != NULL \|\| HDR_HAS_RABD(hdr));

	ASSERT(zfs_refcount_is_zero(&hdr->b_l1hdr.b_refcnt) \|\|
	callback_list != NULL);

	if (zio->io_error == 0) {
	arc_hdr_verify(hdr, zio->io_bp);
	} else {
	arc_hdr_set_flags(hdr, ARC_FLAG_IO_ERROR);
	if (hdr->b_l1hdr.b_state != arc_anon)
	arc_change_state(arc_anon, hdr, hash_lock);
	if (HDR_IN_HASH_TABLE(hdr))
	buf_hash_remove(hdr);
	freeable = zfs_refcount_is_zero(&hdr->b_l1hdr.b_refcnt);
	}

	/*
	* Broadcast before we drop the hash_lock to avoid the possibility
	* that the hdr (and hence the cv) might be freed before we get to
	* the cv_broadcast().
	*/
	cv_broadcast(&hdr->b_l1hdr.b_cv);

	if (hash_lock != NULL) {
	mutex_exit(hash_lock);
	} else {
	/*
	* This block was freed while we waited for the read to
	* complete. It has been removed from the hash table and
	* moved to the anonymous state (so that it won't show up
	* in the cache).
	*/
	ASSERT3P(hdr->b_l1hdr.b_state, ==, arc_anon);
	freeable = zfs_refcount_is_zero(&hdr->b_l1hdr.b_refcnt);
	}

	/* execute each callback and free its structure */
	while ((acb = callback_list) != NULL) {
	if (acb->acb_done != NULL) {
	if (zio->io_error != 0 && acb->acb_buf != NULL) {
	/*
	* If arc_buf_alloc_impl() fails during
	* decompression, the buf will still be
	* allocated, and needs to be freed here.
	*/
	arc_buf_destroy(acb->acb_buf,
	acb->acb_private);
	acb->acb_buf = NULL;
	}
	acb->acb_done(zio, &zio->io_bookmark, zio->io_bp,
	acb->acb_buf, acb->acb_private);
	}

	if (acb->acb_zio_dummy != NULL) {
	acb->acb_zio_dummy->io_error = zio->io_error;
	zio_nowait(acb->acb_zio_dummy);
	}

	callback_list = acb->acb_next;
	kmem_free(acb, sizeof (arc_callback_t));
	}

	if (freeable)
	arc_hdr_destroy(hdr);
	}

	/*
	* "Read" the block at the specified DVA (in bp) via the
	* cache. If the block is found in the cache, invoke the provided
	* callback immediately and return. Note that the `zio' parameter
	* in the callback will be NULL in this case, since no IO was
	* required. If the block is not in the cache pass the read request
	* on to the spa with a substitute callback function, so that the
	* requested block will be added to the cache.
	*
	* If a read request arrives for a block that has a read in-progress,
	* either wait for the in-progress read to complete (and return the
	* results); or, if this is a read with a "done" func, add a record
	* to the read to invoke the "done" func when the read completes,
	* and return; or just return.
	*
	* arc_read_done() will invoke all the requested "done" functions
	* for readers of this block.
	*/
	int
	arc_read(zio_t pio, spa_t spa, const blkptr_t *bp,
	arc_read_done_func_t done, void private, zio_priority_t priority,
	int zio_flags, arc_flags_t arc_flags, const zbookmark_phys_t zb)
	{
	arc_buf_hdr_t *hdr = NULL;
	kmutex_t *hash_lock = NULL;
	zio_t *rzio;
	uint64_t guid = spa_load_guid(spa);
	boolean_t compressed_read = (zio_flags & ZIO_FLAG_RAW_COMPRESS) != 0;
	boolean_t encrypted_read = BP_IS_ENCRYPTED(bp) &&
	(zio_flags & ZIO_FLAG_RAW_ENCRYPT) != 0;
	boolean_t noauth_read = BP_IS_AUTHENTICATED(bp) &&
	(zio_flags & ZIO_FLAG_RAW_ENCRYPT) != 0;
	boolean_t embedded_bp = !!BP_IS_EMBEDDED(bp);
	boolean_t no_buf = *arc_flags & ARC_FLAG_NO_BUF;
	int rc = 0;

	ASSERT(!embedded_bp \|\|
	BPE_GET_ETYPE(bp) == BP_EMBEDDED_TYPE_DATA);
	ASSERT(!BP_IS_HOLE(bp));
	ASSERT(!BP_IS_REDACTED(bp));

	/*
	* Normally SPL_FSTRANS will already be set since kernel threads which
	* expect to call the DMU interfaces will set it when created. System
	* calls are similarly handled by setting/cleaning the bit in the
	* registered callback (module/os/.../zfs/zpl_*).
	*
	* External consumers such as Lustre which call the exported DMU
	* interfaces may not have set SPL_FSTRANS. To avoid a deadlock
	* on the hash_lock always set and clear the bit.
	*/
	fstrans_cookie_t cookie = spl_fstrans_mark();
	top:
	if (!embedded_bp) {
	/*
	* Embedded BP's have no DVA and require no I/O to "read".
	* Create an anonymous arc buf to back it.
	*/
	hdr = buf_hash_find(guid, bp, &hash_lock);
	}

	/*
	* Determine if we have an L1 cache hit or a cache miss. For simplicity
	* we maintain encrypted data separately from compressed / uncompressed
	* data. If the user is requesting raw encrypted data and we don't have
	* that in the header we will read from disk to guarantee that we can
	* get it even if the encryption keys aren't loaded.
	*/
	if (hdr != NULL && HDR_HAS_L1HDR(hdr) && (HDR_HAS_RABD(hdr) \|\|
	(hdr->b_l1hdr.b_pabd != NULL && !encrypted_read))) {
	arc_buf_t *buf = NULL;
	*arc_flags \|= ARC_FLAG_CACHED;

	if (HDR_IO_IN_PROGRESS(hdr)) {
	zio_t *head_zio = hdr->b_l1hdr.b_acb->acb_zio_head;

	if (*arc_flags & ARC_FLAG_CACHED_ONLY) {
	mutex_exit(hash_lock);
	ARCSTAT_BUMP(arcstat_cached_only_in_progress);
	rc = SET_ERROR(ENOENT);
	goto out;
	}

	ASSERT3P(head_zio, !=, NULL);
	if ((hdr->b_flags & ARC_FLAG_PRIO_ASYNC_READ) &&
	priority == ZIO_PRIORITY_SYNC_READ) {
	/*
	* This is a sync read that needs to wait for
	* an in-flight async read. Request that the
	* zio have its priority upgraded.
	*/
	zio_change_priority(head_zio, priority);
	DTRACE_PROBE1(arc__async__upgrade__sync,
	arc_buf_hdr_t *, hdr);
	ARCSTAT_BUMP(arcstat_async_upgrade_sync);
	}
	if (hdr->b_flags & ARC_FLAG_PREDICTIVE_PREFETCH) {
	arc_hdr_clear_flags(hdr,
	ARC_FLAG_PREDICTIVE_PREFETCH);
	}

	if (*arc_flags & ARC_FLAG_WAIT) {
	cv_wait(&hdr->b_l1hdr.b_cv, hash_lock);
	mutex_exit(hash_lock);
	goto top;
	}
	ASSERT(*arc_flags & ARC_FLAG_NOWAIT);

	if (done) {
	arc_callback_t *acb = NULL;

	acb = kmem_zalloc(sizeof (arc_callback_t),
	KM_SLEEP);
	acb->acb_done = done;
	acb->acb_private = private;
	acb->acb_compressed = compressed_read;
	acb->acb_encrypted = encrypted_read;
	acb->acb_noauth = noauth_read;
	acb->acb_nobuf = no_buf;
	acb->acb_zb = *zb;
	if (pio != NULL)
	acb->acb_zio_dummy = zio_null(pio,
	spa, NULL, NULL, NULL, zio_flags);

	ASSERT3P(acb->acb_done, !=, NULL);
	acb->acb_zio_head = head_zio;
	acb->acb_next = hdr->b_l1hdr.b_acb;
	hdr->b_l1hdr.b_acb = acb;
	}
	mutex_exit(hash_lock);
	goto out;
	}

	ASSERT(hdr->b_l1hdr.b_state == arc_mru \|\|
	hdr->b_l1hdr.b_state == arc_mfu);

	if (done && !no_buf) {
	if (hdr->b_flags & ARC_FLAG_PREDICTIVE_PREFETCH) {
	/*
	* This is a demand read which does not have to
	* wait for i/o because we did a predictive
	* prefetch i/o for it, which has completed.
	*/
	DTRACE_PROBE1(
	arc__demand__hit__predictive__prefetch,
	arc_buf_hdr_t *, hdr);
	ARCSTAT_BUMP(
	arcstat_demand_hit_predictive_prefetch);
	arc_hdr_clear_flags(hdr,
	ARC_FLAG_PREDICTIVE_PREFETCH);
	}

	if (hdr->b_flags & ARC_FLAG_PRESCIENT_PREFETCH) {
	ARCSTAT_BUMP(
	arcstat_demand_hit_prescient_prefetch);
	arc_hdr_clear_flags(hdr,
	ARC_FLAG_PRESCIENT_PREFETCH);
	}

	ASSERT(!embedded_bp \|\| !BP_IS_HOLE(bp));

	/* Get a buf with the desired data in it. */
	rc = arc_buf_alloc_impl(hdr, spa, zb, private,
	encrypted_read, compressed_read, noauth_read,
	B_TRUE, &buf);
	if (rc == ECKSUM) {
	/*
	* Convert authentication and decryption errors
	* to EIO (and generate an ereport if needed)
	* before leaving the ARC.
	*/
	rc = SET_ERROR(EIO);
	if ((zio_flags & ZIO_FLAG_SPECULATIVE) == 0) {
	spa_log_error(spa, zb);
	(void) zfs_ereport_post(
	FM_EREPORT_ZFS_AUTHENTICATION,
	spa, NULL, zb, NULL, 0);
	}
	}
	if (rc != 0) {
	(void) remove_reference(hdr, hash_lock,
	private);
	arc_buf_destroy_impl(buf);
	buf = NULL;
	}

	/* assert any errors weren't due to unloaded keys */
	ASSERT((zio_flags & ZIO_FLAG_SPECULATIVE) \|\|
	rc != EACCES);
	} else if (*arc_flags & ARC_FLAG_PREFETCH &&
	zfs_refcount_is_zero(&hdr->b_l1hdr.b_refcnt)) {
	if (HDR_HAS_L2HDR(hdr))
	l2arc_hdr_arcstats_decrement_state(hdr);
	arc_hdr_set_flags(hdr, ARC_FLAG_PREFETCH);
	if (HDR_HAS_L2HDR(hdr))
	l2arc_hdr_arcstats_increment_state(hdr);
	}
	DTRACE_PROBE1(arc__hit, arc_buf_hdr_t *, hdr);
	arc_access(hdr, hash_lock);
	if (*arc_flags & ARC_FLAG_PRESCIENT_PREFETCH)
	arc_hdr_set_flags(hdr, ARC_FLAG_PRESCIENT_PREFETCH);
	if (*arc_flags & ARC_FLAG_L2CACHE)
	arc_hdr_set_flags(hdr, ARC_FLAG_L2CACHE);
	mutex_exit(hash_lock);
	ARCSTAT_BUMP(arcstat_hits);
	ARCSTAT_CONDSTAT(!HDR_PREFETCH(hdr),
	demand, prefetch, !HDR_ISTYPE_METADATA(hdr),
	data, metadata, hits);

	if (done)
	done(NULL, zb, bp, buf, private);
	} else {
	uint64_t lsize = BP_GET_LSIZE(bp);
	uint64_t psize = BP_GET_PSIZE(bp);
	arc_callback_t *acb;
	vdev_t *vd = NULL;
	uint64_t addr = 0;
	boolean_t devw = B_FALSE;
	uint64_t size;
	abd_t *hdr_abd;
	int alloc_flags = encrypted_read ? ARC_HDR_ALLOC_RDATA : 0;

	if (*arc_flags & ARC_FLAG_CACHED_ONLY) {
	rc = SET_ERROR(ENOENT);
	if (hash_lock != NULL)
	mutex_exit(hash_lock);
	goto out;
	}

	/*
	* Gracefully handle a damaged logical block size as a
	* checksum error.
	*/
	if (lsize > spa_maxblocksize(spa)) {
	rc = SET_ERROR(ECKSUM);
	if (hash_lock != NULL)
	mutex_exit(hash_lock);
	goto out;
	}

	if (hdr == NULL) {
	/*
	* This block is not in the cache or it has
	* embedded data.
	*/
	arc_buf_hdr_t *exists = NULL;
	arc_buf_contents_t type = BP_GET_BUFC_TYPE(bp);
	hdr = arc_hdr_alloc(spa_load_guid(spa), psize, lsize,
	BP_IS_PROTECTED(bp), BP_GET_COMPRESS(bp), 0, type,
	encrypted_read);

	if (!embedded_bp) {
	hdr->b_dva = *BP_IDENTITY(bp);
	hdr->b_birth = BP_PHYSICAL_BIRTH(bp);
	exists = buf_hash_insert(hdr, &hash_lock);
	}
	if (exists != NULL) {
	/* somebody beat us to the hash insert */
	mutex_exit(hash_lock);
	buf_discard_identity(hdr);
	arc_hdr_destroy(hdr);
	goto top; /* restart the IO request */
	}
	} else {
	/*
	* This block is in the ghost cache or encrypted data
	* was requested and we didn't have it. If it was
	* L2-only (and thus didn't have an L1 hdr),
	* we realloc the header to add an L1 hdr.
	*/
	if (!HDR_HAS_L1HDR(hdr)) {
	hdr = arc_hdr_realloc(hdr, hdr_l2only_cache,
	hdr_full_cache);
	}

	if (GHOST_STATE(hdr->b_l1hdr.b_state)) {
	ASSERT3P(hdr->b_l1hdr.b_pabd, ==, NULL);
	ASSERT(!HDR_HAS_RABD(hdr));
	ASSERT(!HDR_IO_IN_PROGRESS(hdr));
	ASSERT0(zfs_refcount_count(
	&hdr->b_l1hdr.b_refcnt));
	ASSERT3P(hdr->b_l1hdr.b_buf, ==, NULL);
	ASSERT3P(hdr->b_l1hdr.b_freeze_cksum, ==, NULL);
	} else if (HDR_IO_IN_PROGRESS(hdr)) {
	/*
	* If this header already had an IO in progress
	* and we are performing another IO to fetch
	* encrypted data we must wait until the first
	* IO completes so as not to confuse
	* arc_read_done(). This should be very rare
	* and so the performance impact shouldn't
	* matter.
	*/
	cv_wait(&hdr->b_l1hdr.b_cv, hash_lock);
	mutex_exit(hash_lock);
	goto top;
	}

	/*
	* This is a delicate dance that we play here.
	* This hdr might be in the ghost list so we access
	* it to move it out of the ghost list before we
	* initiate the read. If it's a prefetch then
	* it won't have a callback so we'll remove the
	* reference that arc_buf_alloc_impl() created. We
	* do this after we've called arc_access() to
	* avoid hitting an assert in remove_reference().
	*/
	arc_adapt(arc_hdr_size(hdr), hdr->b_l1hdr.b_state);
	arc_access(hdr, hash_lock);
	arc_hdr_alloc_abd(hdr, alloc_flags);
	}

	if (encrypted_read) {
	ASSERT(HDR_HAS_RABD(hdr));
	size = HDR_GET_PSIZE(hdr);
	hdr_abd = hdr->b_crypt_hdr.b_rabd;
	zio_flags \|= ZIO_FLAG_RAW;
	} else {
	ASSERT3P(hdr->b_l1hdr.b_pabd, !=, NULL);
	size = arc_hdr_size(hdr);
	hdr_abd = hdr->b_l1hdr.b_pabd;

	if (arc_hdr_get_compress(hdr) != ZIO_COMPRESS_OFF) {
	zio_flags \|= ZIO_FLAG_RAW_COMPRESS;
	}

	/*
	* For authenticated bp's, we do not ask the ZIO layer
	* to authenticate them since this will cause the entire
	* IO to fail if the key isn't loaded. Instead, we
	* defer authentication until arc_buf_fill(), which will
	* verify the data when the key is available.
	*/
	if (BP_IS_AUTHENTICATED(bp))
	zio_flags \|= ZIO_FLAG_RAW_ENCRYPT;
	}

	if (*arc_flags & ARC_FLAG_PREFETCH &&
	zfs_refcount_is_zero(&hdr->b_l1hdr.b_refcnt)) {
	if (HDR_HAS_L2HDR(hdr))
	l2arc_hdr_arcstats_decrement_state(hdr);
	arc_hdr_set_flags(hdr, ARC_FLAG_PREFETCH);
	if (HDR_HAS_L2HDR(hdr))
	l2arc_hdr_arcstats_increment_state(hdr);
	}
	if (*arc_flags & ARC_FLAG_PRESCIENT_PREFETCH)
	arc_hdr_set_flags(hdr, ARC_FLAG_PRESCIENT_PREFETCH);
	if (*arc_flags & ARC_FLAG_L2CACHE)
	arc_hdr_set_flags(hdr, ARC_FLAG_L2CACHE);
	if (BP_IS_AUTHENTICATED(bp))
	arc_hdr_set_flags(hdr, ARC_FLAG_NOAUTH);
	if (BP_GET_LEVEL(bp) > 0)
	arc_hdr_set_flags(hdr, ARC_FLAG_INDIRECT);
	if (*arc_flags & ARC_FLAG_PREDICTIVE_PREFETCH)
	arc_hdr_set_flags(hdr, ARC_FLAG_PREDICTIVE_PREFETCH);
	ASSERT(!GHOST_STATE(hdr->b_l1hdr.b_state));

	acb = kmem_zalloc(sizeof (arc_callback_t), KM_SLEEP);
	acb->acb_done = done;
	acb->acb_private = private;
	acb->acb_compressed = compressed_read;
	acb->acb_encrypted = encrypted_read;
	acb->acb_noauth = noauth_read;
	acb->acb_zb = *zb;

	ASSERT3P(hdr->b_l1hdr.b_acb, ==, NULL);
	hdr->b_l1hdr.b_acb = acb;
	arc_hdr_set_flags(hdr, ARC_FLAG_IO_IN_PROGRESS);

	if (HDR_HAS_L2HDR(hdr) &&
	(vd = hdr->b_l2hdr.b_dev->l2ad_vdev) != NULL) {
	devw = hdr->b_l2hdr.b_dev->l2ad_writing;
	addr = hdr->b_l2hdr.b_daddr;
	/*
	* Lock out L2ARC device removal.
	*/
	if (vdev_is_dead(vd) \|\|
	!spa_config_tryenter(spa, SCL_L2ARC, vd, RW_READER))
	vd = NULL;
	}

	/*
	* We count both async reads and scrub IOs as asynchronous so
	* that both can be upgraded in the event of a cache hit while
	* the read IO is still in-flight.
	*/
	if (priority == ZIO_PRIORITY_ASYNC_READ \|\|
	priority == ZIO_PRIORITY_SCRUB)
	arc_hdr_set_flags(hdr, ARC_FLAG_PRIO_ASYNC_READ);
	else
	arc_hdr_clear_flags(hdr, ARC_FLAG_PRIO_ASYNC_READ);

	/*
	* At this point, we have a level 1 cache miss or a blkptr
	* with embedded data. Try again in L2ARC if possible.
	*/
	ASSERT3U(HDR_GET_LSIZE(hdr), ==, lsize);

	/*
	* Skip ARC stat bump for block pointers with embedded
	* data. The data are read from the blkptr itself via
	* decode_embedded_bp_compressed().
	*/
	if (!embedded_bp) {
	DTRACE_PROBE4(arc__miss, arc_buf_hdr_t *, hdr,
	blkptr_t *, bp, uint64_t, lsize,
	zbookmark_phys_t *, zb);
	ARCSTAT_BUMP(arcstat_misses);
	ARCSTAT_CONDSTAT(!HDR_PREFETCH(hdr),
	demand, prefetch, !HDR_ISTYPE_METADATA(hdr), data,
	metadata, misses);
	zfs_racct_read(size, 1);
	}

	/* Check if the spa even has l2 configured */
	const boolean_t spa_has_l2 = l2arc_ndev != 0 &&
	spa->spa_l2cache.sav_count > 0;

	if (vd != NULL && spa_has_l2 && !(l2arc_norw && devw)) {
	/*
	* Read from the L2ARC if the following are true:
	* 1. The L2ARC vdev was previously cached.
	* 2. This buffer still has L2ARC metadata.
	* 3. This buffer isn't currently writing to the L2ARC.
	* 4. The L2ARC entry wasn't evicted, which may
	* also have invalidated the vdev.
	* 5. This isn't prefetch or l2arc_noprefetch is 0.
	*/
	if (HDR_HAS_L2HDR(hdr) &&
	!HDR_L2_WRITING(hdr) && !HDR_L2_EVICTED(hdr) &&
	!(l2arc_noprefetch && HDR_PREFETCH(hdr))) {
	l2arc_read_callback_t *cb;
	abd_t *abd;
	uint64_t asize;

	DTRACE_PROBE1(l2arc__hit, arc_buf_hdr_t *, hdr);
	ARCSTAT_BUMP(arcstat_l2_hits);
	atomic_inc_32(&hdr->b_l2hdr.b_hits);

	cb = kmem_zalloc(sizeof (l2arc_read_callback_t),
	KM_SLEEP);
	cb->l2rcb_hdr = hdr;
	cb->l2rcb_bp = *bp;
	cb->l2rcb_zb = *zb;
	cb->l2rcb_flags = zio_flags;

	/*
	* When Compressed ARC is disabled, but the
	* L2ARC block is compressed, arc_hdr_size()
	* will have returned LSIZE rather than PSIZE.
	*/
	if (HDR_GET_COMPRESS(hdr) != ZIO_COMPRESS_OFF &&
	!HDR_COMPRESSION_ENABLED(hdr) &&
	HDR_GET_PSIZE(hdr) != 0) {
	size = HDR_GET_PSIZE(hdr);
	}

	asize = vdev_psize_to_asize(vd, size);
	if (asize != size) {
	abd = abd_alloc_for_io(asize,
	HDR_ISTYPE_METADATA(hdr));
	cb->l2rcb_abd = abd;
	} else {
	abd = hdr_abd;
	}

	ASSERT(addr >= VDEV_LABEL_START_SIZE &&
	addr + asize <= vd->vdev_psize -
	VDEV_LABEL_END_SIZE);

	/*
	* l2arc read. The SCL_L2ARC lock will be
	* released by l2arc_read_done().
	* Issue a null zio if the underlying buffer
	* was squashed to zero size by compression.
	*/
	ASSERT3U(arc_hdr_get_compress(hdr), !=,
	ZIO_COMPRESS_EMPTY);
	rzio = zio_read_phys(pio, vd, addr,
	asize, abd,
	ZIO_CHECKSUM_OFF,
	l2arc_read_done, cb, priority,
	zio_flags \| ZIO_FLAG_DONT_CACHE \|
	ZIO_FLAG_CANFAIL \|
	ZIO_FLAG_DONT_PROPAGATE \|
	ZIO_FLAG_DONT_RETRY, B_FALSE);
	acb->acb_zio_head = rzio;

	if (hash_lock != NULL)
	mutex_exit(hash_lock);

	DTRACE_PROBE2(l2arc__read, vdev_t *, vd,
	zio_t *, rzio);
	ARCSTAT_INCR(arcstat_l2_read_bytes,
	HDR_GET_PSIZE(hdr));

	if (*arc_flags & ARC_FLAG_NOWAIT) {
	zio_nowait(rzio);
	goto out;
	}

	ASSERT(*arc_flags & ARC_FLAG_WAIT);
	if (zio_wait(rzio) == 0)
	goto out;

	/* l2arc read error; goto zio_read() */
	if (hash_lock != NULL)
	mutex_enter(hash_lock);
	} else {
	DTRACE_PROBE1(l2arc__miss,
	arc_buf_hdr_t *, hdr);
	ARCSTAT_BUMP(arcstat_l2_misses);
	if (HDR_L2_WRITING(hdr))
	ARCSTAT_BUMP(arcstat_l2_rw_clash);
	spa_config_exit(spa, SCL_L2ARC, vd);
	}
	} else {
	if (vd != NULL)
	spa_config_exit(spa, SCL_L2ARC, vd);

	/*
	* Only a spa with l2 should contribute to l2
	* miss stats. (Including the case of having a
	* faulted cache device - that's also a miss.)
	*/
	if (spa_has_l2) {
	/*
	* Skip ARC stat bump for block pointers with
	* embedded data. The data are read from the
	* blkptr itself via
	* decode_embedded_bp_compressed().
	*/
	if (!embedded_bp) {
	DTRACE_PROBE1(l2arc__miss,
	arc_buf_hdr_t *, hdr);
	ARCSTAT_BUMP(arcstat_l2_misses);
	}
	}
	}

	rzio = zio_read(pio, spa, bp, hdr_abd, size,
	arc_read_done, hdr, priority, zio_flags, zb);
	acb->acb_zio_head = rzio;

	if (hash_lock != NULL)
	mutex_exit(hash_lock);

	if (*arc_flags & ARC_FLAG_WAIT) {
	rc = zio_wait(rzio);
	goto out;
	}

	ASSERT(*arc_flags & ARC_FLAG_NOWAIT);
	zio_nowait(rzio);
	}

	out:
	/* embedded bps don't actually go to disk */
	if (!embedded_bp)
	spa_read_history_add(spa, zb, *arc_flags);
	spl_fstrans_unmark(cookie);
	return (rc);
	}

	arc_prune_t *
	arc_add_prune_callback(arc_prune_func_t func, void private)
	{
	arc_prune_t *p;

	p = kmem_alloc(sizeof (*p), KM_SLEEP);
	p->p_pfunc = func;
	p->p_private = private;
	list_link_init(&p->p_node);
	zfs_refcount_create(&p->p_refcnt);

	mutex_enter(&arc_prune_mtx);
	zfs_refcount_add(&p->p_refcnt, &arc_prune_list);
	list_insert_head(&arc_prune_list, p);
	mutex_exit(&arc_prune_mtx);

	return (p);
	}

	void
	arc_remove_prune_callback(arc_prune_t *p)
	{
	boolean_t wait = B_FALSE;
	mutex_enter(&arc_prune_mtx);
	list_remove(&arc_prune_list, p);
	if (zfs_refcount_remove(&p->p_refcnt, &arc_prune_list) > 0)
	wait = B_TRUE;
	mutex_exit(&arc_prune_mtx);

	/* wait for arc_prune_task to finish */
	if (wait)
	taskq_wait_outstanding(arc_prune_taskq, 0);
	ASSERT0(zfs_refcount_count(&p->p_refcnt));
	zfs_refcount_destroy(&p->p_refcnt);
	kmem_free(p, sizeof (*p));
	}

	/*
	* Notify the arc that a block was freed, and thus will never be used again.
	*/
	void
	arc_freed(spa_t spa, const blkptr_t bp)
	{
	arc_buf_hdr_t *hdr;
	kmutex_t *hash_lock;
	uint64_t guid = spa_load_guid(spa);

	ASSERT(!BP_IS_EMBEDDED(bp));

	hdr = buf_hash_find(guid, bp, &hash_lock);
	if (hdr == NULL)
	return;

	/*
	* We might be trying to free a block that is still doing I/O
	* (i.e. prefetch) or has a reference (i.e. a dedup-ed,
	* dmu_sync-ed block). If this block is being prefetched, then it
	* would still have the ARC_FLAG_IO_IN_PROGRESS flag set on the hdr
	* until the I/O completes. A block may also have a reference if it is
	* part of a dedup-ed, dmu_synced write. The dmu_sync() function would
	* have written the new block to its final resting place on disk but
	* without the dedup flag set. This would have left the hdr in the MRU
	* state and discoverable. When the txg finally syncs it detects that
	* the block was overridden in open context and issues an override I/O.
	* Since this is a dedup block, the override I/O will determine if the
	* block is already in the DDT. If so, then it will replace the io_bp
	* with the bp from the DDT and allow the I/O to finish. When the I/O
	* reaches the done callback, dbuf_write_override_done, it will
	* check to see if the io_bp and io_bp_override are identical.
	* If they are not, then it indicates that the bp was replaced with
	* the bp in the DDT and the override bp is freed. This allows
	* us to arrive here with a reference on a block that is being
	* freed. So if we have an I/O in progress, or a reference to
	* this hdr, then we don't destroy the hdr.
	*/
	if (!HDR_HAS_L1HDR(hdr) \|\| (!HDR_IO_IN_PROGRESS(hdr) &&
	zfs_refcount_is_zero(&hdr->b_l1hdr.b_refcnt))) {
	arc_change_state(arc_anon, hdr, hash_lock);
	arc_hdr_destroy(hdr);
	mutex_exit(hash_lock);
	} else {
	mutex_exit(hash_lock);
	}

	}

	/*
	* Release this buffer from the cache, making it an anonymous buffer. This
	* must be done after a read and prior to modifying the buffer contents.
	* If the buffer has more than one reference, we must make
	* a new hdr for the buffer.
	*/
	void
	arc_release(arc_buf_t buf, void tag)
	{
	arc_buf_hdr_t *hdr = buf->b_hdr;

	/*
	* It would be nice to assert that if its DMU metadata (level >
	* 0 \|\| it's the dnode file), then it must be syncing context.
	* But we don't know that information at this level.
	*/

	mutex_enter(&buf->b_evict_lock);

	ASSERT(HDR_HAS_L1HDR(hdr));

	/*
	* We don't grab the hash lock prior to this check, because if
	* the buffer's header is in the arc_anon state, it won't be
	* linked into the hash table.
	*/
	if (hdr->b_l1hdr.b_state == arc_anon) {
	mutex_exit(&buf->b_evict_lock);
	ASSERT(!HDR_IO_IN_PROGRESS(hdr));
	ASSERT(!HDR_IN_HASH_TABLE(hdr));
	ASSERT(!HDR_HAS_L2HDR(hdr));
	ASSERT(HDR_EMPTY(hdr));

	ASSERT3U(hdr->b_l1hdr.b_bufcnt, ==, 1);
	ASSERT3S(zfs_refcount_count(&hdr->b_l1hdr.b_refcnt), ==, 1);
	ASSERT(!list_link_active(&hdr->b_l1hdr.b_arc_node));

	hdr->b_l1hdr.b_arc_access = 0;

	/*
	* If the buf is being overridden then it may already
	* have a hdr that is not empty.
	*/
	buf_discard_identity(hdr);
	arc_buf_thaw(buf);

	return;
	}

	kmutex_t *hash_lock = HDR_LOCK(hdr);
	mutex_enter(hash_lock);

	/*
	* This assignment is only valid as long as the hash_lock is
	* held, we must be careful not to reference state or the
	* b_state field after dropping the lock.
	*/
	arc_state_t *state = hdr->b_l1hdr.b_state;
	ASSERT3P(hash_lock, ==, HDR_LOCK(hdr));
	ASSERT3P(state, !=, arc_anon);

	/* this buffer is not on any list */
	ASSERT3S(zfs_refcount_count(&hdr->b_l1hdr.b_refcnt), >, 0);

	if (HDR_HAS_L2HDR(hdr)) {
	mutex_enter(&hdr->b_l2hdr.b_dev->l2ad_mtx);

	/*
	* We have to recheck this conditional again now that
	* we're holding the l2ad_mtx to prevent a race with
	* another thread which might be concurrently calling
	* l2arc_evict(). In that case, l2arc_evict() might have
	* destroyed the header's L2 portion as we were waiting
	* to acquire the l2ad_mtx.
	*/
	if (HDR_HAS_L2HDR(hdr))
	arc_hdr_l2hdr_destroy(hdr);

	mutex_exit(&hdr->b_l2hdr.b_dev->l2ad_mtx);
	}

	/*
	* Do we have more than one buf?
	*/
	if (hdr->b_l1hdr.b_bufcnt > 1) {
	arc_buf_hdr_t *nhdr;
	uint64_t spa = hdr->b_spa;
	uint64_t psize = HDR_GET_PSIZE(hdr);
	uint64_t lsize = HDR_GET_LSIZE(hdr);
	boolean_t protected = HDR_PROTECTED(hdr);
	enum zio_compress compress = arc_hdr_get_compress(hdr);
	arc_buf_contents_t type = arc_buf_type(hdr);
	VERIFY3U(hdr->b_type, ==, type);

	ASSERT(hdr->b_l1hdr.b_buf != buf \|\| buf->b_next != NULL);
	(void) remove_reference(hdr, hash_lock, tag);

	if (arc_buf_is_shared(buf) && !ARC_BUF_COMPRESSED(buf)) {
	ASSERT3P(hdr->b_l1hdr.b_buf, !=, buf);
	ASSERT(ARC_BUF_LAST(buf));
	}

	/*
	* Pull the data off of this hdr and attach it to
	* a new anonymous hdr. Also find the last buffer
	* in the hdr's buffer list.
	*/
	arc_buf_t *lastbuf = arc_buf_remove(hdr, buf);
	ASSERT3P(lastbuf, !=, NULL);

	/*
	* If the current arc_buf_t and the hdr are sharing their data
	* buffer, then we must stop sharing that block.
	*/
	if (arc_buf_is_shared(buf)) {
	ASSERT3P(hdr->b_l1hdr.b_buf, !=, buf);
	VERIFY(!arc_buf_is_shared(lastbuf));

	/*
	* First, sever the block sharing relationship between
	* buf and the arc_buf_hdr_t.
	*/
	arc_unshare_buf(hdr, buf);

	/*
	* Now we need to recreate the hdr's b_pabd. Since we
	* have lastbuf handy, we try to share with it, but if
	* we can't then we allocate a new b_pabd and copy the
	* data from buf into it.
	*/
	if (arc_can_share(hdr, lastbuf)) {
	arc_share_buf(hdr, lastbuf);
	} else {
	arc_hdr_alloc_abd(hdr, ARC_HDR_DO_ADAPT);
	abd_copy_from_buf(hdr->b_l1hdr.b_pabd,
	buf->b_data, psize);
	}
	VERIFY3P(lastbuf->b_data, !=, NULL);
	} else if (HDR_SHARED_DATA(hdr)) {
	/*
	* Uncompressed shared buffers are always at the end
	* of the list. Compressed buffers don't have the
	* same requirements. This makes it hard to
	* simply assert that the lastbuf is shared so
	* we rely on the hdr's compression flags to determine
	* if we have a compressed, shared buffer.
	*/
	ASSERT(arc_buf_is_shared(lastbuf) \|\|
	arc_hdr_get_compress(hdr) != ZIO_COMPRESS_OFF);
	ASSERT(!ARC_BUF_SHARED(buf));
	}

	ASSERT(hdr->b_l1hdr.b_pabd != NULL \|\| HDR_HAS_RABD(hdr));
	ASSERT3P(state, !=, arc_l2c_only);

	(void) zfs_refcount_remove_many(&state->arcs_size,
	arc_buf_size(buf), buf);

	if (zfs_refcount_is_zero(&hdr->b_l1hdr.b_refcnt)) {
	ASSERT3P(state, !=, arc_l2c_only);
	(void) zfs_refcount_remove_many(
	&state->arcs_esize[type],
	arc_buf_size(buf), buf);
	}

	hdr->b_l1hdr.b_bufcnt -= 1;
	if (ARC_BUF_ENCRYPTED(buf))
	hdr->b_crypt_hdr.b_ebufcnt -= 1;

	arc_cksum_verify(buf);
	arc_buf_unwatch(buf);

	/* if this is the last uncompressed buf free the checksum */
	if (!arc_hdr_has_uncompressed_buf(hdr))
	arc_cksum_free(hdr);

	mutex_exit(hash_lock);

	/*
	* Allocate a new hdr. The new hdr will contain a b_pabd
	* buffer which will be freed in arc_write().
	*/
	nhdr = arc_hdr_alloc(spa, psize, lsize, protected,
	compress, hdr->b_complevel, type, HDR_HAS_RABD(hdr));
	ASSERT3P(nhdr->b_l1hdr.b_buf, ==, NULL);
	ASSERT0(nhdr->b_l1hdr.b_bufcnt);
	ASSERT0(zfs_refcount_count(&nhdr->b_l1hdr.b_refcnt));
	VERIFY3U(nhdr->b_type, ==, type);
	ASSERT(!HDR_SHARED_DATA(nhdr));

	nhdr->b_l1hdr.b_buf = buf;
	nhdr->b_l1hdr.b_bufcnt = 1;
	if (ARC_BUF_ENCRYPTED(buf))
	nhdr->b_crypt_hdr.b_ebufcnt = 1;
	nhdr->b_l1hdr.b_mru_hits = 0;
	nhdr->b_l1hdr.b_mru_ghost_hits = 0;
	nhdr->b_l1hdr.b_mfu_hits = 0;
	nhdr->b_l1hdr.b_mfu_ghost_hits = 0;
	nhdr->b_l1hdr.b_l2_hits = 0;
	(void) zfs_refcount_add(&nhdr->b_l1hdr.b_refcnt, tag);
	buf->b_hdr = nhdr;

	mutex_exit(&buf->b_evict_lock);
	(void) zfs_refcount_add_many(&arc_anon->arcs_size,
	arc_buf_size(buf), buf);
	} else {
	mutex_exit(&buf->b_evict_lock);
	ASSERT(zfs_refcount_count(&hdr->b_l1hdr.b_refcnt) == 1);
	/* protected by hash lock, or hdr is on arc_anon */
	ASSERT(!multilist_link_active(&hdr->b_l1hdr.b_arc_node));
	ASSERT(!HDR_IO_IN_PROGRESS(hdr));
	hdr->b_l1hdr.b_mru_hits = 0;
	hdr->b_l1hdr.b_mru_ghost_hits = 0;
	hdr->b_l1hdr.b_mfu_hits = 0;
	hdr->b_l1hdr.b_mfu_ghost_hits = 0;
	hdr->b_l1hdr.b_l2_hits = 0;
	arc_change_state(arc_anon, hdr, hash_lock);
	hdr->b_l1hdr.b_arc_access = 0;

	mutex_exit(hash_lock);
	buf_discard_identity(hdr);
	arc_buf_thaw(buf);
	}
	}

	int
	arc_released(arc_buf_t *buf)
	{
	int released;

	mutex_enter(&buf->b_evict_lock);
	released = (buf->b_data != NULL &&
	buf->b_hdr->b_l1hdr.b_state == arc_anon);
	mutex_exit(&buf->b_evict_lock);
	return (released);
	}

	#ifdef ZFS_DEBUG
	int
	arc_referenced(arc_buf_t *buf)
	{
	int referenced;

	mutex_enter(&buf->b_evict_lock);
	referenced = (zfs_refcount_count(&buf->b_hdr->b_l1hdr.b_refcnt));
	mutex_exit(&buf->b_evict_lock);
	return (referenced);
	}
	#endif

	static void
	arc_write_ready(zio_t *zio)
	{
	arc_write_callback_t *callback = zio->io_private;
	arc_buf_t *buf = callback->awcb_buf;
	arc_buf_hdr_t *hdr = buf->b_hdr;
	blkptr_t *bp = zio->io_bp;
	uint64_t psize = BP_IS_HOLE(bp) ? 0 : BP_GET_PSIZE(bp);
	fstrans_cookie_t cookie = spl_fstrans_mark();

	ASSERT(HDR_HAS_L1HDR(hdr));
	ASSERT(!zfs_refcount_is_zero(&buf->b_hdr->b_l1hdr.b_refcnt));
	ASSERT(hdr->b_l1hdr.b_bufcnt > 0);

	/*
	* If we're reexecuting this zio because the pool suspended, then
	* cleanup any state that was previously set the first time the
	* callback was invoked.
	*/
	if (zio->io_flags & ZIO_FLAG_REEXECUTED) {
	arc_cksum_free(hdr);
	arc_buf_unwatch(buf);
	if (hdr->b_l1hdr.b_pabd != NULL) {
	if (arc_buf_is_shared(buf)) {
	arc_unshare_buf(hdr, buf);
	} else {
	arc_hdr_free_abd(hdr, B_FALSE);
	}
	}

	if (HDR_HAS_RABD(hdr))
	arc_hdr_free_abd(hdr, B_TRUE);
	}
	ASSERT3P(hdr->b_l1hdr.b_pabd, ==, NULL);
	ASSERT(!HDR_HAS_RABD(hdr));
	ASSERT(!HDR_SHARED_DATA(hdr));
	ASSERT(!arc_buf_is_shared(buf));

	callback->awcb_ready(zio, buf, callback->awcb_private);

	if (HDR_IO_IN_PROGRESS(hdr))
	ASSERT(zio->io_flags & ZIO_FLAG_REEXECUTED);

	arc_hdr_set_flags(hdr, ARC_FLAG_IO_IN_PROGRESS);

	if (BP_IS_PROTECTED(bp) != !!HDR_PROTECTED(hdr))
	hdr = arc_hdr_realloc_crypt(hdr, BP_IS_PROTECTED(bp));

	if (BP_IS_PROTECTED(bp)) {
	/* ZIL blocks are written through zio_rewrite */
	ASSERT3U(BP_GET_TYPE(bp), !=, DMU_OT_INTENT_LOG);
	ASSERT(HDR_PROTECTED(hdr));

	if (BP_SHOULD_BYTESWAP(bp)) {
	if (BP_GET_LEVEL(bp) > 0) {
	hdr->b_l1hdr.b_byteswap = DMU_BSWAP_UINT64;
	} else {
	hdr->b_l1hdr.b_byteswap =
	DMU_OT_BYTESWAP(BP_GET_TYPE(bp));
	}
	} else {
	hdr->b_l1hdr.b_byteswap = DMU_BSWAP_NUMFUNCS;
	}

	hdr->b_crypt_hdr.b_ot = BP_GET_TYPE(bp);
	hdr->b_crypt_hdr.b_dsobj = zio->io_bookmark.zb_objset;
	zio_crypt_decode_params_bp(bp, hdr->b_crypt_hdr.b_salt,
	hdr->b_crypt_hdr.b_iv);
	zio_crypt_decode_mac_bp(bp, hdr->b_crypt_hdr.b_mac);
	}

	/*
	* If this block was written for raw encryption but the zio layer
	* ended up only authenticating it, adjust the buffer flags now.
	*/
	if (BP_IS_AUTHENTICATED(bp) && ARC_BUF_ENCRYPTED(buf)) {
	arc_hdr_set_flags(hdr, ARC_FLAG_NOAUTH);
	buf->b_flags &= ~ARC_BUF_FLAG_ENCRYPTED;
	if (BP_GET_COMPRESS(bp) == ZIO_COMPRESS_OFF)
	buf->b_flags &= ~ARC_BUF_FLAG_COMPRESSED;
	} else if (BP_IS_HOLE(bp) && ARC_BUF_ENCRYPTED(buf)) {
	buf->b_flags &= ~ARC_BUF_FLAG_ENCRYPTED;
	buf->b_flags &= ~ARC_BUF_FLAG_COMPRESSED;
	}

	/* this must be done after the buffer flags are adjusted */
	arc_cksum_compute(buf);

	enum zio_compress compress;
	if (BP_IS_HOLE(bp) \|\| BP_IS_EMBEDDED(bp)) {
	compress = ZIO_COMPRESS_OFF;
	} else {
	ASSERT3U(HDR_GET_LSIZE(hdr), ==, BP_GET_LSIZE(bp));
	compress = BP_GET_COMPRESS(bp);
	}
	HDR_SET_PSIZE(hdr, psize);
	arc_hdr_set_compress(hdr, compress);
	hdr->b_complevel = zio->io_prop.zp_complevel;

	if (zio->io_error != 0 \|\| psize == 0)
	goto out;

	/*
	* Fill the hdr with data. If the buffer is encrypted we have no choice
	* but to copy the data into b_radb. If the hdr is compressed, the data
	* we want is available from the zio, otherwise we can take it from
	* the buf.
	*
	* We might be able to share the buf's data with the hdr here. However,
	* doing so would cause the ARC to be full of linear ABDs if we write a
	* lot of shareable data. As a compromise, we check whether scattered
	* ABDs are allowed, and assume that if they are then the user wants
	* the ARC to be primarily filled with them regardless of the data being
	* written. Therefore, if they're allowed then we allocate one and copy
	* the data into it; otherwise, we share the data directly if we can.
	*/
	if (ARC_BUF_ENCRYPTED(buf)) {
	ASSERT3U(psize, >, 0);
	ASSERT(ARC_BUF_COMPRESSED(buf));
	arc_hdr_alloc_abd(hdr, ARC_HDR_DO_ADAPT\|ARC_HDR_ALLOC_RDATA);
	abd_copy(hdr->b_crypt_hdr.b_rabd, zio->io_abd, psize);
	} else if (zfs_abd_scatter_enabled \|\| !arc_can_share(hdr, buf)) {
	/*
	* Ideally, we would always copy the io_abd into b_pabd, but the
	* user may have disabled compressed ARC, thus we must check the
	* hdr's compression setting rather than the io_bp's.
	*/
	if (BP_IS_ENCRYPTED(bp)) {
	ASSERT3U(psize, >, 0);
	arc_hdr_alloc_abd(hdr,
	ARC_HDR_DO_ADAPT\|ARC_HDR_ALLOC_RDATA);
	abd_copy(hdr->b_crypt_hdr.b_rabd, zio->io_abd, psize);
	} else if (arc_hdr_get_compress(hdr) != ZIO_COMPRESS_OFF &&
	!ARC_BUF_COMPRESSED(buf)) {
	ASSERT3U(psize, >, 0);
	arc_hdr_alloc_abd(hdr, ARC_HDR_DO_ADAPT);
	abd_copy(hdr->b_l1hdr.b_pabd, zio->io_abd, psize);
	} else {
	ASSERT3U(zio->io_orig_size, ==, arc_hdr_size(hdr));
	arc_hdr_alloc_abd(hdr, ARC_HDR_DO_ADAPT);
	abd_copy_from_buf(hdr->b_l1hdr.b_pabd, buf->b_data,
	arc_buf_size(buf));
	}
	} else {
	ASSERT3P(buf->b_data, ==, abd_to_buf(zio->io_orig_abd));
	ASSERT3U(zio->io_orig_size, ==, arc_buf_size(buf));
	ASSERT3U(hdr->b_l1hdr.b_bufcnt, ==, 1);

	arc_share_buf(hdr, buf);
	}

	out:
	arc_hdr_verify(hdr, bp);
	spl_fstrans_unmark(cookie);
	}

	static void
	arc_write_children_ready(zio_t *zio)
	{
	arc_write_callback_t *callback = zio->io_private;
	arc_buf_t *buf = callback->awcb_buf;

	callback->awcb_children_ready(zio, buf, callback->awcb_private);
	}

	/*
	* The SPA calls this callback for each physical write that happens on behalf
	* of a logical write. See the comment in dbuf_write_physdone() for details.
	*/
	static void
	arc_write_physdone(zio_t *zio)
	{
	arc_write_callback_t *cb = zio->io_private;
	if (cb->awcb_physdone != NULL)
	cb->awcb_physdone(zio, cb->awcb_buf, cb->awcb_private);
	}

	static void
	arc_write_done(zio_t *zio)
	{
	arc_write_callback_t *callback = zio->io_private;
	arc_buf_t *buf = callback->awcb_buf;
	arc_buf_hdr_t *hdr = buf->b_hdr;

	ASSERT3P(hdr->b_l1hdr.b_acb, ==, NULL);

	if (zio->io_error == 0) {
	arc_hdr_verify(hdr, zio->io_bp);

	if (BP_IS_HOLE(zio->io_bp) \|\| BP_IS_EMBEDDED(zio->io_bp)) {
	buf_discard_identity(hdr);
	} else {
	hdr->b_dva = *BP_IDENTITY(zio->io_bp);
	hdr->b_birth = BP_PHYSICAL_BIRTH(zio->io_bp);
	}
	} else {
	ASSERT(HDR_EMPTY(hdr));
	}

	/*
	* If the block to be written was all-zero or compressed enough to be
	* embedded in the BP, no write was performed so there will be no
	* dva/birth/checksum. The buffer must therefore remain anonymous
	* (and uncached).
	*/
	if (!HDR_EMPTY(hdr)) {
	arc_buf_hdr_t *exists;
	kmutex_t *hash_lock;

	ASSERT3U(zio->io_error, ==, 0);

	arc_cksum_verify(buf);

	exists = buf_hash_insert(hdr, &hash_lock);
	if (exists != NULL) {
	/*
	* This can only happen if we overwrite for
	* sync-to-convergence, because we remove
	* buffers from the hash table when we arc_free().
	*/
	if (zio->io_flags & ZIO_FLAG_IO_REWRITE) {
	if (!BP_EQUAL(&zio->io_bp_orig, zio->io_bp))
	panic("bad overwrite, hdr=%p exists=%p",
	(void )hdr, (void )exists);
	ASSERT(zfs_refcount_is_zero(
	&exists->b_l1hdr.b_refcnt));
	arc_change_state(arc_anon, exists, hash_lock);
	arc_hdr_destroy(exists);
	mutex_exit(hash_lock);
	exists = buf_hash_insert(hdr, &hash_lock);
	ASSERT3P(exists, ==, NULL);
	} else if (zio->io_flags & ZIO_FLAG_NOPWRITE) {
	/* nopwrite */
	ASSERT(zio->io_prop.zp_nopwrite);
	if (!BP_EQUAL(&zio->io_bp_orig, zio->io_bp))
	panic("bad nopwrite, hdr=%p exists=%p",
	(void )hdr, (void )exists);
	} else {
	/* Dedup */
	ASSERT(hdr->b_l1hdr.b_bufcnt == 1);
	ASSERT(hdr->b_l1hdr.b_state == arc_anon);
	ASSERT(BP_GET_DEDUP(zio->io_bp));
	ASSERT(BP_GET_LEVEL(zio->io_bp) == 0);
	}
	}
	arc_hdr_clear_flags(hdr, ARC_FLAG_IO_IN_PROGRESS);
	/* if it's not anon, we are doing a scrub */
	if (exists == NULL && hdr->b_l1hdr.b_state == arc_anon)
	arc_access(hdr, hash_lock);
	mutex_exit(hash_lock);
	} else {
	arc_hdr_clear_flags(hdr, ARC_FLAG_IO_IN_PROGRESS);
	}

	ASSERT(!zfs_refcount_is_zero(&hdr->b_l1hdr.b_refcnt));
	callback->awcb_done(zio, buf, callback->awcb_private);

	abd_free(zio->io_abd);
	kmem_free(callback, sizeof (arc_write_callback_t));
	}

	zio_t *
	arc_write(zio_t pio, spa_t spa, uint64_t txg,
	blkptr_t bp, arc_buf_t buf, boolean_t l2arc,
	const zio_prop_t zp, arc_write_done_func_t ready,
	arc_write_done_func_t children_ready, arc_write_done_func_t physdone,
	arc_write_done_func_t done, void private, zio_priority_t priority,
	int zio_flags, const zbookmark_phys_t *zb)
	{
	arc_buf_hdr_t *hdr = buf->b_hdr;
	arc_write_callback_t *callback;
	zio_t *zio;
	zio_prop_t localprop = *zp;

	ASSERT3P(ready, !=, NULL);
	ASSERT3P(done, !=, NULL);
	ASSERT(!HDR_IO_ERROR(hdr));
	ASSERT(!HDR_IO_IN_PROGRESS(hdr));
	ASSERT3P(hdr->b_l1hdr.b_acb, ==, NULL);
	ASSERT3U(hdr->b_l1hdr.b_bufcnt, >, 0);
	if (l2arc)
	arc_hdr_set_flags(hdr, ARC_FLAG_L2CACHE);

	if (ARC_BUF_ENCRYPTED(buf)) {
	ASSERT(ARC_BUF_COMPRESSED(buf));
	localprop.zp_encrypt = B_TRUE;
	localprop.zp_compress = HDR_GET_COMPRESS(hdr);
	localprop.zp_complevel = hdr->b_complevel;
	localprop.zp_byteorder =
	(hdr->b_l1hdr.b_byteswap == DMU_BSWAP_NUMFUNCS) ?
	ZFS_HOST_BYTEORDER : !ZFS_HOST_BYTEORDER;
	bcopy(hdr->b_crypt_hdr.b_salt, localprop.zp_salt,
	ZIO_DATA_SALT_LEN);
	bcopy(hdr->b_crypt_hdr.b_iv, localprop.zp_iv,
	ZIO_DATA_IV_LEN);
	bcopy(hdr->b_crypt_hdr.b_mac, localprop.zp_mac,
	ZIO_DATA_MAC_LEN);
	if (DMU_OT_IS_ENCRYPTED(localprop.zp_type)) {
	localprop.zp_nopwrite = B_FALSE;
	localprop.zp_copies =
	MIN(localprop.zp_copies, SPA_DVAS_PER_BP - 1);
	}
	zio_flags \|= ZIO_FLAG_RAW;
	} else if (ARC_BUF_COMPRESSED(buf)) {
	ASSERT3U(HDR_GET_LSIZE(hdr), !=, arc_buf_size(buf));
	localprop.zp_compress = HDR_GET_COMPRESS(hdr);
	localprop.zp_complevel = hdr->b_complevel;
	zio_flags \|= ZIO_FLAG_RAW_COMPRESS;
	}
	callback = kmem_zalloc(sizeof (arc_write_callback_t), KM_SLEEP);
	callback->awcb_ready = ready;
	callback->awcb_children_ready = children_ready;
	callback->awcb_physdone = physdone;
	callback->awcb_done = done;
	callback->awcb_private = private;
	callback->awcb_buf = buf;

	/*
	* The hdr's b_pabd is now stale, free it now. A new data block
	* will be allocated when the zio pipeline calls arc_write_ready().
	*/
	if (hdr->b_l1hdr.b_pabd != NULL) {
	/*
	* If the buf is currently sharing the data block with
	* the hdr then we need to break that relationship here.
	* The hdr will remain with a NULL data pointer and the
	* buf will take sole ownership of the block.
	*/
	if (arc_buf_is_shared(buf)) {
	arc_unshare_buf(hdr, buf);
	} else {
	arc_hdr_free_abd(hdr, B_FALSE);
	}
	VERIFY3P(buf->b_data, !=, NULL);
	}

	if (HDR_HAS_RABD(hdr))
	arc_hdr_free_abd(hdr, B_TRUE);

	if (!(zio_flags & ZIO_FLAG_RAW))
	arc_hdr_set_compress(hdr, ZIO_COMPRESS_OFF);

	ASSERT(!arc_buf_is_shared(buf));
	ASSERT3P(hdr->b_l1hdr.b_pabd, ==, NULL);

	zio = zio_write(pio, spa, txg, bp,
	abd_get_from_buf(buf->b_data, HDR_GET_LSIZE(hdr)),
	HDR_GET_LSIZE(hdr), arc_buf_size(buf), &localprop, arc_write_ready,
	(children_ready != NULL) ? arc_write_children_ready : NULL,
	arc_write_physdone, arc_write_done, callback,
	priority, zio_flags, zb);

	return (zio);
	}

	void
	arc_tempreserve_clear(uint64_t reserve)
	{
	atomic_add_64(&arc_tempreserve, -reserve);
	ASSERT((int64_t)arc_tempreserve >= 0);
	}

	int
	arc_tempreserve_space(spa_t *spa, uint64_t reserve, uint64_t txg)
	{
	int error;
	uint64_t anon_size;

	if (!arc_no_grow &&
	reserve > arc_c/4 &&
	reserve * 4 > (2ULL << SPA_MAXBLOCKSHIFT))
	arc_c = MIN(arc_c_max, reserve * 4);

	/*
	* Throttle when the calculated memory footprint for the TXG
	* exceeds the target ARC size.
	*/
	if (reserve > arc_c) {
	DMU_TX_STAT_BUMP(dmu_tx_memory_reserve);
	return (SET_ERROR(ERESTART));
	}

	/*
	* Don't count loaned bufs as in flight dirty data to prevent long
	* network delays from blocking transactions that are ready to be
	* assigned to a txg.
	*/

	/* assert that it has not wrapped around */
	ASSERT3S(atomic_add_64_nv(&arc_loaned_bytes, 0), >=, 0);

	anon_size = MAX((int64_t)(zfs_refcount_count(&arc_anon->arcs_size) -
	arc_loaned_bytes), 0);

	/*
	* Writes will, almost always, require additional memory allocations
	* in order to compress/encrypt/etc the data. We therefore need to
	* make sure that there is sufficient available memory for this.
	*/
	error = arc_memory_throttle(spa, reserve, txg);
	if (error != 0)
	return (error);

	/*
	* Throttle writes when the amount of dirty data in the cache
	* gets too large. We try to keep the cache less than half full
	* of dirty blocks so that our sync times don't grow too large.
	*
	* In the case of one pool being built on another pool, we want
	* to make sure we don't end up throttling the lower (backing)
	* pool when the upper pool is the majority contributor to dirty
	* data. To insure we make forward progress during throttling, we
	* also check the current pool's net dirty data and only throttle
	* if it exceeds zfs_arc_pool_dirty_percent of the anonymous dirty
	* data in the cache.
	*
	* Note: if two requests come in concurrently, we might let them
	* both succeed, when one of them should fail. Not a huge deal.
	*/
	uint64_t total_dirty = reserve + arc_tempreserve + anon_size;
	uint64_t spa_dirty_anon = spa_dirty_data(spa);
	uint64_t rarc_c = arc_warm ? arc_c : arc_c_max;
	if (total_dirty > rarc_c * zfs_arc_dirty_limit_percent / 100 &&
	anon_size > rarc_c * zfs_arc_anon_limit_percent / 100 &&
	spa_dirty_anon > anon_size * zfs_arc_pool_dirty_percent / 100) {
	#ifdef ZFS_DEBUG
	uint64_t meta_esize = zfs_refcount_count(
	&arc_anon->arcs_esize[ARC_BUFC_METADATA]);
	uint64_t data_esize =
	zfs_refcount_count(&arc_anon->arcs_esize[ARC_BUFC_DATA]);
	dprintf("failing, arc_tempreserve=%lluK anon_meta=%lluK "
	"anon_data=%lluK tempreserve=%lluK rarc_c=%lluK\n",
	arc_tempreserve >> 10, meta_esize >> 10,
	data_esize >> 10, reserve >> 10, rarc_c >> 10);
	#endif
	DMU_TX_STAT_BUMP(dmu_tx_dirty_throttle);
	return (SET_ERROR(ERESTART));
	}
	atomic_add_64(&arc_tempreserve, reserve);
	return (0);
	}

	static void
	arc_kstat_update_state(arc_state_t state, kstat_named_t size,
	kstat_named_t evict_data, kstat_named_t evict_metadata)
	{
	size->value.ui64 = zfs_refcount_count(&state->arcs_size);
	evict_data->value.ui64 =
	zfs_refcount_count(&state->arcs_esize[ARC_BUFC_DATA]);
	evict_metadata->value.ui64 =
	zfs_refcount_count(&state->arcs_esize[ARC_BUFC_METADATA]);
	}

	static int
	arc_kstat_update(kstat_t *ksp, int rw)
	{
	arc_stats_t *as = ksp->ks_data;

	if (rw == KSTAT_WRITE) {
	return (SET_ERROR(EACCES));
	} else {
	arc_kstat_update_state(arc_anon,
	&as->arcstat_anon_size,
	&as->arcstat_anon_evictable_data,
	&as->arcstat_anon_evictable_metadata);
	arc_kstat_update_state(arc_mru,
	&as->arcstat_mru_size,
	&as->arcstat_mru_evictable_data,
	&as->arcstat_mru_evictable_metadata);
	arc_kstat_update_state(arc_mru_ghost,
	&as->arcstat_mru_ghost_size,
	&as->arcstat_mru_ghost_evictable_data,
	&as->arcstat_mru_ghost_evictable_metadata);
	arc_kstat_update_state(arc_mfu,
	&as->arcstat_mfu_size,
	&as->arcstat_mfu_evictable_data,
	&as->arcstat_mfu_evictable_metadata);
	arc_kstat_update_state(arc_mfu_ghost,
	&as->arcstat_mfu_ghost_size,
	&as->arcstat_mfu_ghost_evictable_data,
	&as->arcstat_mfu_ghost_evictable_metadata);

	ARCSTAT(arcstat_size) = aggsum_value(&arc_size);
	ARCSTAT(arcstat_meta_used) = aggsum_value(&arc_meta_used);
	ARCSTAT(arcstat_data_size) = wmsum_value(&astat_data_size);
	ARCSTAT(arcstat_metadata_size) =
	wmsum_value(&astat_metadata_size);
	ARCSTAT(arcstat_hdr_size) = wmsum_value(&astat_hdr_size);
	ARCSTAT(arcstat_l2_hdr_size) = aggsum_value(&astat_l2_hdr_size);
	ARCSTAT(arcstat_dbuf_size) = wmsum_value(&astat_dbuf_size);
	#if defined(COMPAT_FREEBSD11)
	ARCSTAT(arcstat_other_size) = wmsum_value(&astat_bonus_size) +
	aggsum_value(&astat_dnode_size) +
	wmsum_value(&astat_dbuf_size);
	#endif
	ARCSTAT(arcstat_dnode_size) = aggsum_value(&astat_dnode_size);
	ARCSTAT(arcstat_bonus_size) = wmsum_value(&astat_bonus_size);
	ARCSTAT(arcstat_abd_chunk_waste_size) =
	wmsum_value(&astat_abd_chunk_waste_size);

	as->arcstat_memory_all_bytes.value.ui64 =
	arc_all_memory();
	as->arcstat_memory_free_bytes.value.ui64 =
	arc_free_memory();
	as->arcstat_memory_available_bytes.value.i64 =
	arc_available_memory();
	}

	return (0);
	}

	/*
	* This function must return indices evenly distributed between all
	* sublists of the multilist. This is needed due to how the ARC eviction
	* code is laid out; arc_evict_state() assumes ARC buffers are evenly
	* distributed between all sublists and uses this assumption when
	* deciding which sublist to evict from and how much to evict from it.
	*/
	static unsigned int
	arc_state_multilist_index_func(multilist_t ml, void obj)
	{
	arc_buf_hdr_t *hdr = obj;

	/*
	* We rely on b_dva to generate evenly distributed index
	* numbers using buf_hash below. So, as an added precaution,
	* let's make sure we never add empty buffers to the arc lists.
	*/
	ASSERT(!HDR_EMPTY(hdr));

	/*
	* The assumption here, is the hash value for a given
	* arc_buf_hdr_t will remain constant throughout its lifetime
	* (i.e. its b_spa, b_dva, and b_birth fields don't change).
	* Thus, we don't need to store the header's sublist index
	* on insertion, as this index can be recalculated on removal.
	*
	* Also, the low order bits of the hash value are thought to be
	* distributed evenly. Otherwise, in the case that the multilist
	* has a power of two number of sublists, each sublists' usage
	* would not be evenly distributed.
	*/
	return (buf_hash(hdr->b_spa, &hdr->b_dva, hdr->b_birth) %
	multilist_get_num_sublists(ml));
	}

	#define WARN_IF_TUNING_IGNORED(tuning, value, do_warn) do { \
	if ((do_warn) && (tuning) && ((tuning) != (value))) { \
	cmn_err(CE_WARN, \
	"ignoring tunable %s (using %llu instead)", \
	(#tuning), (value)); \
	} \
	} while (0)

	/*
	* Called during module initialization and periodically thereafter to
	* apply reasonable changes to the exposed performance tunings. Can also be
	* called explicitly by param_set_arc_*() functions when ARC tunables are
	* updated manually. Non-zero zfs_* values which differ from the currently set
	* values will be applied.
	*/
	void
	arc_tuning_update(boolean_t verbose)
	{
	uint64_t allmem = arc_all_memory();
	unsigned long limit;

	/* Valid range: 32M - <arc_c_max> */
	if ((zfs_arc_min) && (zfs_arc_min != arc_c_min) &&
	(zfs_arc_min >= 2ULL << SPA_MAXBLOCKSHIFT) &&
	(zfs_arc_min <= arc_c_max)) {
	arc_c_min = zfs_arc_min;
	arc_c = MAX(arc_c, arc_c_min);
	}
	WARN_IF_TUNING_IGNORED(zfs_arc_min, arc_c_min, verbose);

	/* Valid range: 64M - <all physical memory> */
	if ((zfs_arc_max) && (zfs_arc_max != arc_c_max) &&
	(zfs_arc_max >= 64 << 20) && (zfs_arc_max < allmem) &&
	(zfs_arc_max > arc_c_min)) {
	arc_c_max = zfs_arc_max;
	arc_c = MIN(arc_c, arc_c_max);
	arc_p = (arc_c >> 1);
	if (arc_meta_limit > arc_c_max)
	arc_meta_limit = arc_c_max;
	if (arc_dnode_size_limit > arc_meta_limit)
	arc_dnode_size_limit = arc_meta_limit;
	}
	WARN_IF_TUNING_IGNORED(zfs_arc_max, arc_c_max, verbose);

	/* Valid range: 16M - <arc_c_max> */
	if ((zfs_arc_meta_min) && (zfs_arc_meta_min != arc_meta_min) &&
	(zfs_arc_meta_min >= 1ULL << SPA_MAXBLOCKSHIFT) &&
	(zfs_arc_meta_min <= arc_c_max)) {
	arc_meta_min = zfs_arc_meta_min;
	if (arc_meta_limit < arc_meta_min)
	arc_meta_limit = arc_meta_min;
	if (arc_dnode_size_limit < arc_meta_min)
	arc_dnode_size_limit = arc_meta_min;
	}
	WARN_IF_TUNING_IGNORED(zfs_arc_meta_min, arc_meta_min, verbose);

	/* Valid range: <arc_meta_min> - <arc_c_max> */
	limit = zfs_arc_meta_limit ? zfs_arc_meta_limit :
	MIN(zfs_arc_meta_limit_percent, 100) * arc_c_max / 100;
	if ((limit != arc_meta_limit) &&
	(limit >= arc_meta_min) &&
	(limit <= arc_c_max))
	arc_meta_limit = limit;
	WARN_IF_TUNING_IGNORED(zfs_arc_meta_limit, arc_meta_limit, verbose);

	/* Valid range: <arc_meta_min> - <arc_meta_limit> */
	limit = zfs_arc_dnode_limit ? zfs_arc_dnode_limit :
	MIN(zfs_arc_dnode_limit_percent, 100) * arc_meta_limit / 100;
	if ((limit != arc_dnode_size_limit) &&
	(limit >= arc_meta_min) &&
	(limit <= arc_meta_limit))
	arc_dnode_size_limit = limit;
	WARN_IF_TUNING_IGNORED(zfs_arc_dnode_limit, arc_dnode_size_limit,
	verbose);

	/* Valid range: 1 - N */
	if (zfs_arc_grow_retry)
	arc_grow_retry = zfs_arc_grow_retry;

	/* Valid range: 1 - N */
	if (zfs_arc_shrink_shift) {
	arc_shrink_shift = zfs_arc_shrink_shift;
	arc_no_grow_shift = MIN(arc_no_grow_shift, arc_shrink_shift -1);
	}

	/* Valid range: 1 - N */
	if (zfs_arc_p_min_shift)
	arc_p_min_shift = zfs_arc_p_min_shift;

	/* Valid range: 1 - N ms */
	if (zfs_arc_min_prefetch_ms)
	arc_min_prefetch_ms = zfs_arc_min_prefetch_ms;

	/* Valid range: 1 - N ms */
	if (zfs_arc_min_prescient_prefetch_ms) {
	arc_min_prescient_prefetch_ms =
	zfs_arc_min_prescient_prefetch_ms;
	}

	/* Valid range: 0 - 100 */
	if ((zfs_arc_lotsfree_percent >= 0) &&
	(zfs_arc_lotsfree_percent <= 100))
	arc_lotsfree_percent = zfs_arc_lotsfree_percent;
	WARN_IF_TUNING_IGNORED(zfs_arc_lotsfree_percent, arc_lotsfree_percent,
	verbose);

	/* Valid range: 0 - <all physical memory> */
	if ((zfs_arc_sys_free) && (zfs_arc_sys_free != arc_sys_free))
	arc_sys_free = MIN(MAX(zfs_arc_sys_free, 0), allmem);
	WARN_IF_TUNING_IGNORED(zfs_arc_sys_free, arc_sys_free, verbose);
	}

	static void
	arc_state_init(void)
	{
	arc_anon = &ARC_anon;
	arc_mru = &ARC_mru;
	arc_mru_ghost = &ARC_mru_ghost;
	arc_mfu = &ARC_mfu;
	arc_mfu_ghost = &ARC_mfu_ghost;
	arc_l2c_only = &ARC_l2c_only;

	- arc_mru->arcs_list[ARC_BUFC_METADATA] =
	- multilist_create(sizeof (arc_buf_hdr_t),
	+ multilist_create(&arc_mru->arcs_list[ARC_BUFC_METADATA],
	+ sizeof (arc_buf_hdr_t),
	offsetof(arc_buf_hdr_t, b_l1hdr.b_arc_node),
	arc_state_multilist_index_func);
	- arc_mru->arcs_list[ARC_BUFC_DATA] =
	- multilist_create(sizeof (arc_buf_hdr_t),
	+ multilist_create(&arc_mru->arcs_list[ARC_BUFC_DATA],
	+ sizeof (arc_buf_hdr_t),
	offsetof(arc_buf_hdr_t, b_l1hdr.b_arc_node),
	arc_state_multilist_index_func);
	- arc_mru_ghost->arcs_list[ARC_BUFC_METADATA] =
	- multilist_create(sizeof (arc_buf_hdr_t),
	+ multilist_create(&arc_mru_ghost->arcs_list[ARC_BUFC_METADATA],
	+ sizeof (arc_buf_hdr_t),
	offsetof(arc_buf_hdr_t, b_l1hdr.b_arc_node),
	arc_state_multilist_index_func);
	- arc_mru_ghost->arcs_list[ARC_BUFC_DATA] =
	- multilist_create(sizeof (arc_buf_hdr_t),
	+ multilist_create(&arc_mru_ghost->arcs_list[ARC_BUFC_DATA],
	+ sizeof (arc_buf_hdr_t),
	offsetof(arc_buf_hdr_t, b_l1hdr.b_arc_node),
	arc_state_multilist_index_func);
	- arc_mfu->arcs_list[ARC_BUFC_METADATA] =
	- multilist_create(sizeof (arc_buf_hdr_t),
	+ multilist_create(&arc_mfu->arcs_list[ARC_BUFC_METADATA],
	+ sizeof (arc_buf_hdr_t),
	offsetof(arc_buf_hdr_t, b_l1hdr.b_arc_node),
	arc_state_multilist_index_func);
	- arc_mfu->arcs_list[ARC_BUFC_DATA] =
	- multilist_create(sizeof (arc_buf_hdr_t),
	+ multilist_create(&arc_mfu->arcs_list[ARC_BUFC_DATA],
	+ sizeof (arc_buf_hdr_t),
	offsetof(arc_buf_hdr_t, b_l1hdr.b_arc_node),
	arc_state_multilist_index_func);
	- arc_mfu_ghost->arcs_list[ARC_BUFC_METADATA] =
	- multilist_create(sizeof (arc_buf_hdr_t),
	+ multilist_create(&arc_mfu_ghost->arcs_list[ARC_BUFC_METADATA],
	+ sizeof (arc_buf_hdr_t),
	offsetof(arc_buf_hdr_t, b_l1hdr.b_arc_node),
	arc_state_multilist_index_func);
	- arc_mfu_ghost->arcs_list[ARC_BUFC_DATA] =
	- multilist_create(sizeof (arc_buf_hdr_t),
	+ multilist_create(&arc_mfu_ghost->arcs_list[ARC_BUFC_DATA],
	+ sizeof (arc_buf_hdr_t),
	offsetof(arc_buf_hdr_t, b_l1hdr.b_arc_node),
	arc_state_multilist_index_func);
	- arc_l2c_only->arcs_list[ARC_BUFC_METADATA] =
	- multilist_create(sizeof (arc_buf_hdr_t),
	+ multilist_create(&arc_l2c_only->arcs_list[ARC_BUFC_METADATA],
	+ sizeof (arc_buf_hdr_t),
	offsetof(arc_buf_hdr_t, b_l1hdr.b_arc_node),
	arc_state_multilist_index_func);
	- arc_l2c_only->arcs_list[ARC_BUFC_DATA] =
	- multilist_create(sizeof (arc_buf_hdr_t),
	+ multilist_create(&arc_l2c_only->arcs_list[ARC_BUFC_DATA],
	+ sizeof (arc_buf_hdr_t),
	offsetof(arc_buf_hdr_t, b_l1hdr.b_arc_node),
	arc_state_multilist_index_func);

	zfs_refcount_create(&arc_anon->arcs_esize[ARC_BUFC_METADATA]);
	zfs_refcount_create(&arc_anon->arcs_esize[ARC_BUFC_DATA]);
	zfs_refcount_create(&arc_mru->arcs_esize[ARC_BUFC_METADATA]);
	zfs_refcount_create(&arc_mru->arcs_esize[ARC_BUFC_DATA]);
	zfs_refcount_create(&arc_mru_ghost->arcs_esize[ARC_BUFC_METADATA]);
	zfs_refcount_create(&arc_mru_ghost->arcs_esize[ARC_BUFC_DATA]);
	zfs_refcount_create(&arc_mfu->arcs_esize[ARC_BUFC_METADATA]);
	zfs_refcount_create(&arc_mfu->arcs_esize[ARC_BUFC_DATA]);
	zfs_refcount_create(&arc_mfu_ghost->arcs_esize[ARC_BUFC_METADATA]);
	zfs_refcount_create(&arc_mfu_ghost->arcs_esize[ARC_BUFC_DATA]);
	zfs_refcount_create(&arc_l2c_only->arcs_esize[ARC_BUFC_METADATA]);
	zfs_refcount_create(&arc_l2c_only->arcs_esize[ARC_BUFC_DATA]);

	zfs_refcount_create(&arc_anon->arcs_size);
	zfs_refcount_create(&arc_mru->arcs_size);
	zfs_refcount_create(&arc_mru_ghost->arcs_size);
	zfs_refcount_create(&arc_mfu->arcs_size);
	zfs_refcount_create(&arc_mfu_ghost->arcs_size);
	zfs_refcount_create(&arc_l2c_only->arcs_size);

	aggsum_init(&arc_meta_used, 0);
	aggsum_init(&arc_size, 0);
	wmsum_init(&astat_data_size, 0);
	wmsum_init(&astat_metadata_size, 0);
	wmsum_init(&astat_hdr_size, 0);
	aggsum_init(&astat_l2_hdr_size, 0);
	wmsum_init(&astat_bonus_size, 0);
	aggsum_init(&astat_dnode_size, 0);
	wmsum_init(&astat_dbuf_size, 0);
	wmsum_init(&astat_abd_chunk_waste_size, 0);

	arc_anon->arcs_state = ARC_STATE_ANON;
	arc_mru->arcs_state = ARC_STATE_MRU;
	arc_mru_ghost->arcs_state = ARC_STATE_MRU_GHOST;
	arc_mfu->arcs_state = ARC_STATE_MFU;
	arc_mfu_ghost->arcs_state = ARC_STATE_MFU_GHOST;
	arc_l2c_only->arcs_state = ARC_STATE_L2C_ONLY;
	}

	static void
	arc_state_fini(void)
	{
	zfs_refcount_destroy(&arc_anon->arcs_esize[ARC_BUFC_METADATA]);
	zfs_refcount_destroy(&arc_anon->arcs_esize[ARC_BUFC_DATA]);
	zfs_refcount_destroy(&arc_mru->arcs_esize[ARC_BUFC_METADATA]);
	zfs_refcount_destroy(&arc_mru->arcs_esize[ARC_BUFC_DATA]);
	zfs_refcount_destroy(&arc_mru_ghost->arcs_esize[ARC_BUFC_METADATA]);
	zfs_refcount_destroy(&arc_mru_ghost->arcs_esize[ARC_BUFC_DATA]);
	zfs_refcount_destroy(&arc_mfu->arcs_esize[ARC_BUFC_METADATA]);
	zfs_refcount_destroy(&arc_mfu->arcs_esize[ARC_BUFC_DATA]);
	zfs_refcount_destroy(&arc_mfu_ghost->arcs_esize[ARC_BUFC_METADATA]);
	zfs_refcount_destroy(&arc_mfu_ghost->arcs_esize[ARC_BUFC_DATA]);
	zfs_refcount_destroy(&arc_l2c_only->arcs_esize[ARC_BUFC_METADATA]);
	zfs_refcount_destroy(&arc_l2c_only->arcs_esize[ARC_BUFC_DATA]);

	zfs_refcount_destroy(&arc_anon->arcs_size);
	zfs_refcount_destroy(&arc_mru->arcs_size);
	zfs_refcount_destroy(&arc_mru_ghost->arcs_size);
	zfs_refcount_destroy(&arc_mfu->arcs_size);
	zfs_refcount_destroy(&arc_mfu_ghost->arcs_size);
	zfs_refcount_destroy(&arc_l2c_only->arcs_size);

	- multilist_destroy(arc_mru->arcs_list[ARC_BUFC_METADATA]);
	- multilist_destroy(arc_mru_ghost->arcs_list[ARC_BUFC_METADATA]);
	- multilist_destroy(arc_mfu->arcs_list[ARC_BUFC_METADATA]);
	- multilist_destroy(arc_mfu_ghost->arcs_list[ARC_BUFC_METADATA]);
	- multilist_destroy(arc_mru->arcs_list[ARC_BUFC_DATA]);
	- multilist_destroy(arc_mru_ghost->arcs_list[ARC_BUFC_DATA]);
	- multilist_destroy(arc_mfu->arcs_list[ARC_BUFC_DATA]);
	- multilist_destroy(arc_mfu_ghost->arcs_list[ARC_BUFC_DATA]);
	- multilist_destroy(arc_l2c_only->arcs_list[ARC_BUFC_METADATA]);
	- multilist_destroy(arc_l2c_only->arcs_list[ARC_BUFC_DATA]);
	+ multilist_destroy(&arc_mru->arcs_list[ARC_BUFC_METADATA]);
	+ multilist_destroy(&arc_mru_ghost->arcs_list[ARC_BUFC_METADATA]);
	+ multilist_destroy(&arc_mfu->arcs_list[ARC_BUFC_METADATA]);
	+ multilist_destroy(&arc_mfu_ghost->arcs_list[ARC_BUFC_METADATA]);
	+ multilist_destroy(&arc_mru->arcs_list[ARC_BUFC_DATA]);
	+ multilist_destroy(&arc_mru_ghost->arcs_list[ARC_BUFC_DATA]);
	+ multilist_destroy(&arc_mfu->arcs_list[ARC_BUFC_DATA]);
	+ multilist_destroy(&arc_mfu_ghost->arcs_list[ARC_BUFC_DATA]);
	+ multilist_destroy(&arc_l2c_only->arcs_list[ARC_BUFC_METADATA]);
	+ multilist_destroy(&arc_l2c_only->arcs_list[ARC_BUFC_DATA]);

	aggsum_fini(&arc_meta_used);
	aggsum_fini(&arc_size);
	wmsum_fini(&astat_data_size);
	wmsum_fini(&astat_metadata_size);
	wmsum_fini(&astat_hdr_size);
	aggsum_fini(&astat_l2_hdr_size);
	wmsum_fini(&astat_bonus_size);
	aggsum_fini(&astat_dnode_size);
	wmsum_fini(&astat_dbuf_size);
	wmsum_fini(&astat_abd_chunk_waste_size);
	}

	uint64_t
	arc_target_bytes(void)
	{
	return (arc_c);
	}

	void
	arc_set_limits(uint64_t allmem)
	{
	/* Set min cache to 1/32 of all memory, or 32MB, whichever is more. */
	arc_c_min = MAX(allmem / 32, 2ULL << SPA_MAXBLOCKSHIFT);

	/* How to set default max varies by platform. */
	arc_c_max = arc_default_max(arc_c_min, allmem);
	}
	void
	arc_init(void)
	{
	uint64_t percent, allmem = arc_all_memory();
	mutex_init(&arc_evict_lock, NULL, MUTEX_DEFAULT, NULL);
	list_create(&arc_evict_waiters, sizeof (arc_evict_waiter_t),
	offsetof(arc_evict_waiter_t, aew_node));

	arc_min_prefetch_ms = 1000;
	arc_min_prescient_prefetch_ms = 6000;

	#if defined(_KERNEL)
	arc_lowmem_init();
	#endif

	arc_set_limits(allmem);

	#ifndef _KERNEL
	/*
	* In userland, there's only the memory pressure that we artificially
	* create (see arc_available_memory()). Don't let arc_c get too
	* small, because it can cause transactions to be larger than
	* arc_c, causing arc_tempreserve_space() to fail.
	*/
	arc_c_min = MAX(arc_c_max / 2, 2ULL << SPA_MAXBLOCKSHIFT);
	#endif

	arc_c = arc_c_min;
	arc_p = (arc_c >> 1);

	/* Set min to 1/2 of arc_c_min */
	arc_meta_min = 1ULL << SPA_MAXBLOCKSHIFT;
	/* Initialize maximum observed usage to zero */
	arc_meta_max = 0;
	/*
	* Set arc_meta_limit to a percent of arc_c_max with a floor of
	* arc_meta_min, and a ceiling of arc_c_max.
	*/
	percent = MIN(zfs_arc_meta_limit_percent, 100);
	arc_meta_limit = MAX(arc_meta_min, (percent * arc_c_max) / 100);
	percent = MIN(zfs_arc_dnode_limit_percent, 100);
	arc_dnode_size_limit = (percent * arc_meta_limit) / 100;

	/* Apply user specified tunings */
	arc_tuning_update(B_TRUE);

	/* if kmem_flags are set, lets try to use less memory */
	if (kmem_debugging())
	arc_c = arc_c / 2;
	if (arc_c < arc_c_min)
	arc_c = arc_c_min;

	arc_register_hotplug();

	arc_state_init();

	buf_init();

	list_create(&arc_prune_list, sizeof (arc_prune_t),
	offsetof(arc_prune_t, p_node));
	mutex_init(&arc_prune_mtx, NULL, MUTEX_DEFAULT, NULL);

	arc_prune_taskq = taskq_create("arc_prune", 100, defclsyspri,
	boot_ncpus, INT_MAX, TASKQ_PREPOPULATE \| TASKQ_DYNAMIC \|
	TASKQ_THREADS_CPU_PCT);

	arc_ksp = kstat_create("zfs", 0, "arcstats", "misc", KSTAT_TYPE_NAMED,
	sizeof (arc_stats) / sizeof (kstat_named_t), KSTAT_FLAG_VIRTUAL);

	if (arc_ksp != NULL) {
	arc_ksp->ks_data = &arc_stats;
	arc_ksp->ks_update = arc_kstat_update;
	kstat_install(arc_ksp);
	}

	arc_evict_zthr = zthr_create("arc_evict",
	arc_evict_cb_check, arc_evict_cb, NULL);
	arc_reap_zthr = zthr_create_timer("arc_reap",
	arc_reap_cb_check, arc_reap_cb, NULL, SEC2NSEC(1));

	arc_warm = B_FALSE;

	/*
	* Calculate maximum amount of dirty data per pool.
	*
	* If it has been set by a module parameter, take that.
	* Otherwise, use a percentage of physical memory defined by
	* zfs_dirty_data_max_percent (default 10%) with a cap at
	* zfs_dirty_data_max_max (default 4G or 25% of physical memory).
	*/
	#ifdef __LP64__
	if (zfs_dirty_data_max_max == 0)
	zfs_dirty_data_max_max = MIN(4ULL * 1024 * 1024 * 1024,
	allmem * zfs_dirty_data_max_max_percent / 100);
	#else
	if (zfs_dirty_data_max_max == 0)
	zfs_dirty_data_max_max = MIN(1ULL * 1024 * 1024 * 1024,
	allmem * zfs_dirty_data_max_max_percent / 100);
	#endif

	if (zfs_dirty_data_max == 0) {
	zfs_dirty_data_max = allmem *
	zfs_dirty_data_max_percent / 100;
	zfs_dirty_data_max = MIN(zfs_dirty_data_max,
	zfs_dirty_data_max_max);
	}
	}

	void
	arc_fini(void)
	{
	arc_prune_t *p;

	#ifdef _KERNEL
	arc_lowmem_fini();
	#endif /* _KERNEL */

	/* Use B_TRUE to ensure all buffers are evicted */
	arc_flush(NULL, B_TRUE);

	if (arc_ksp != NULL) {
	kstat_delete(arc_ksp);
	arc_ksp = NULL;
	}

	taskq_wait(arc_prune_taskq);
	taskq_destroy(arc_prune_taskq);

	mutex_enter(&arc_prune_mtx);
	while ((p = list_head(&arc_prune_list)) != NULL) {
	list_remove(&arc_prune_list, p);
	zfs_refcount_remove(&p->p_refcnt, &arc_prune_list);
	zfs_refcount_destroy(&p->p_refcnt);
	kmem_free(p, sizeof (*p));
	}
	mutex_exit(&arc_prune_mtx);

	list_destroy(&arc_prune_list);
	mutex_destroy(&arc_prune_mtx);

	(void) zthr_cancel(arc_evict_zthr);
	(void) zthr_cancel(arc_reap_zthr);

	mutex_destroy(&arc_evict_lock);
	list_destroy(&arc_evict_waiters);

	/*
	* Free any buffers that were tagged for destruction. This needs
	* to occur before arc_state_fini() runs and destroys the aggsum
	* values which are updated when freeing scatter ABDs.
	*/
	l2arc_do_free_on_write();

	/*
	* buf_fini() must proceed arc_state_fini() because buf_fin() may
	* trigger the release of kmem magazines, which can callback to
	* arc_space_return() which accesses aggsums freed in act_state_fini().
	*/
	buf_fini();
	arc_state_fini();

	arc_unregister_hotplug();

	/*
	* We destroy the zthrs after all the ARC state has been
	* torn down to avoid the case of them receiving any
	* wakeup() signals after they are destroyed.
	*/
	zthr_destroy(arc_evict_zthr);
	zthr_destroy(arc_reap_zthr);

	ASSERT0(arc_loaned_bytes);
	}

	/*
	* Level 2 ARC
	*
	* The level 2 ARC (L2ARC) is a cache layer in-between main memory and disk.
	* It uses dedicated storage devices to hold cached data, which are populated
	* using large infrequent writes. The main role of this cache is to boost
	* the performance of random read workloads. The intended L2ARC devices
	* include short-stroked disks, solid state disks, and other media with
	* substantially faster read latency than disk.
	*
	* +-----------------------+
	* \| ARC \|
	* +-----------------------+
	* \| ^ ^
	* \| \| \|
	* l2arc_feed_thread() arc_read()
	* \| \| \|
	* \| l2arc read \|
	* V \| \|
	* +---------------+ \|
	* \| L2ARC \| \|
	* +---------------+ \|
	* \| ^ \|
	* l2arc_write() \| \|
	* \| \| \|
	* V \| \|
	* +-------+ +-------+
	* \| vdev \| \| vdev \|
	* \| cache \| \| cache \|
	* +-------+ +-------+
	* +=========+ .-----.
	* : L2ARC : \|-_____-\|
	* : devices : \| Disks \|
	* +=========+ `-_____-'
	*
	* Read requests are satisfied from the following sources, in order:
	*
	* 1) ARC
	* 2) vdev cache of L2ARC devices
	* 3) L2ARC devices
	* 4) vdev cache of disks
	* 5) disks
	*
	* Some L2ARC device types exhibit extremely slow write performance.
	* To accommodate for this there are some significant differences between
	* the L2ARC and traditional cache design:
	*
	* 1. There is no eviction path from the ARC to the L2ARC. Evictions from
	* the ARC behave as usual, freeing buffers and placing headers on ghost
	* lists. The ARC does not send buffers to the L2ARC during eviction as
	* this would add inflated write latencies for all ARC memory pressure.
	*
	* 2. The L2ARC attempts to cache data from the ARC before it is evicted.
	* It does this by periodically scanning buffers from the eviction-end of
	* the MFU and MRU ARC lists, copying them to the L2ARC devices if they are
	* not already there. It scans until a headroom of buffers is satisfied,
	* which itself is a buffer for ARC eviction. If a compressible buffer is
	* found during scanning and selected for writing to an L2ARC device, we
	* temporarily boost scanning headroom during the next scan cycle to make
	* sure we adapt to compression effects (which might significantly reduce
	* the data volume we write to L2ARC). The thread that does this is
	* l2arc_feed_thread(), illustrated below; example sizes are included to
	* provide a better sense of ratio than this diagram:
	*
	* head --> tail
	* +---------------------+----------+
	* ARC_mfu \|:::::#:::::::::::::::\|o#o###o###\|-->. # already on L2ARC
	* +---------------------+----------+ \| o L2ARC eligible
	* ARC_mru \|:#:::::::::::::::::::\|#o#ooo####\|-->\| : ARC buffer
	* +---------------------+----------+ \|
	* 15.9 Gbytes ^ 32 Mbytes \|
	* headroom \|
	* l2arc_feed_thread()
	* \|
	* l2arc write hand <--[oooo]--'
	* \| 8 Mbyte
	* \| write max
	* V
	* +==============================+
	* L2ARC dev \|####\|#\|###\|###\| \|####\| ... \|
	* +==============================+
	* 32 Gbytes
	*
	* 3. If an ARC buffer is copied to the L2ARC but then hit instead of
	* evicted, then the L2ARC has cached a buffer much sooner than it probably
	* needed to, potentially wasting L2ARC device bandwidth and storage. It is
	* safe to say that this is an uncommon case, since buffers at the end of
	* the ARC lists have moved there due to inactivity.
	*
	* 4. If the ARC evicts faster than the L2ARC can maintain a headroom,
	* then the L2ARC simply misses copying some buffers. This serves as a
	* pressure valve to prevent heavy read workloads from both stalling the ARC
	* with waits and clogging the L2ARC with writes. This also helps prevent
	* the potential for the L2ARC to churn if it attempts to cache content too
	* quickly, such as during backups of the entire pool.
	*
	* 5. After system boot and before the ARC has filled main memory, there are
	* no evictions from the ARC and so the tails of the ARC_mfu and ARC_mru
	* lists can remain mostly static. Instead of searching from tail of these
	* lists as pictured, the l2arc_feed_thread() will search from the list heads
	* for eligible buffers, greatly increasing its chance of finding them.
	*
	* The L2ARC device write speed is also boosted during this time so that
	* the L2ARC warms up faster. Since there have been no ARC evictions yet,
	* there are no L2ARC reads, and no fear of degrading read performance
	* through increased writes.
	*
	* 6. Writes to the L2ARC devices are grouped and sent in-sequence, so that
	* the vdev queue can aggregate them into larger and fewer writes. Each
	* device is written to in a rotor fashion, sweeping writes through
	* available space then repeating.
	*
	* 7. The L2ARC does not store dirty content. It never needs to flush
	* write buffers back to disk based storage.
	*
	* 8. If an ARC buffer is written (and dirtied) which also exists in the
	* L2ARC, the now stale L2ARC buffer is immediately dropped.
	*
	* The performance of the L2ARC can be tweaked by a number of tunables, which
	* may be necessary for different workloads:
	*
	* l2arc_write_max max write bytes per interval
	* l2arc_write_boost extra write bytes during device warmup
	* l2arc_noprefetch skip caching prefetched buffers
	* l2arc_headroom number of max device writes to precache
	* l2arc_headroom_boost when we find compressed buffers during ARC
	* scanning, we multiply headroom by this
	* percentage factor for the next scan cycle,
	* since more compressed buffers are likely to
	* be present
	* l2arc_feed_secs seconds between L2ARC writing
	*
	* Tunables may be removed or added as future performance improvements are
	* integrated, and also may become zpool properties.
	*
	* There are three key functions that control how the L2ARC warms up:
	*
	* l2arc_write_eligible() check if a buffer is eligible to cache
	* l2arc_write_size() calculate how much to write
	* l2arc_write_interval() calculate sleep delay between writes
	*
	* These three functions determine what to write, how much, and how quickly
	* to send writes.
	*
	* L2ARC persistence:
	*
	* When writing buffers to L2ARC, we periodically add some metadata to
	* make sure we can pick them up after reboot, thus dramatically reducing
	* the impact that any downtime has on the performance of storage systems
	* with large caches.
	*
	* The implementation works fairly simply by integrating the following two
	* modifications:
	*
	* *) When writing to the L2ARC, we occasionally write a "l2arc log block",
	* which is an additional piece of metadata which describes what's been
	* written. This allows us to rebuild the arc_buf_hdr_t structures of the
	* main ARC buffers. There are 2 linked-lists of log blocks headed by
	* dh_start_lbps[2]. We alternate which chain we append to, so they are
	* time-wise and offset-wise interleaved, but that is an optimization rather
	* than for correctness. The log block also includes a pointer to the
	* previous block in its chain.
	*
	* *) We reserve SPA_MINBLOCKSIZE of space at the start of each L2ARC device
	* for our header bookkeeping purposes. This contains a device header,
	* which contains our top-level reference structures. We update it each
	* time we write a new log block, so that we're able to locate it in the
	* L2ARC device. If this write results in an inconsistent device header
	* (e.g. due to power failure), we detect this by verifying the header's
	* checksum and simply fail to reconstruct the L2ARC after reboot.
	*
	* Implementation diagram:
	*
	* +=== L2ARC device (not to scale) ======================================+
	* \| ___two newest log block pointers__.__________ \|
	* \| / \dh_start_lbps[1] \|
	* \| / \ \dh_start_lbps[0]\|
	* \|.___/__. V V \|
	* \|\|L2 dev\|....\|lb \|bufs \|lb \|bufs \|lb \|bufs \|lb \|bufs \|lb \|---(empty)---\|
	* \|\| hdr\| ^ /^ /^ / / \|
	* \|+------+ ...--\-------/ \-----/--\------/ / \|
	* \| \--------------/ \--------------/ \|
	* +======================================================================+
	*
	* As can be seen on the diagram, rather than using a simple linked list,
	* we use a pair of linked lists with alternating elements. This is a
	* performance enhancement due to the fact that we only find out the
	* address of the next log block access once the current block has been
	* completely read in. Obviously, this hurts performance, because we'd be
	* keeping the device's I/O queue at only a 1 operation deep, thus
	* incurring a large amount of I/O round-trip latency. Having two lists
	* allows us to fetch two log blocks ahead of where we are currently
	* rebuilding L2ARC buffers.
	*
	* On-device data structures:
	*
	* L2ARC device header: l2arc_dev_hdr_phys_t
	* L2ARC log block: l2arc_log_blk_phys_t
	*
	* L2ARC reconstruction:
	*
	* When writing data, we simply write in the standard rotary fashion,
	* evicting buffers as we go and simply writing new data over them (writing
	* a new log block every now and then). This obviously means that once we
	* loop around the end of the device, we will start cutting into an already
	* committed log block (and its referenced data buffers), like so:
	*
	* current write head__ __old tail
	* \ /
	* V V
	* <--\|bufs \|lb \|bufs \|lb \| \|bufs \|lb \|bufs \|lb \|-->
	* ^ ^^^^^^^^^___________________________________
	* \| \
	* <<nextwrite>> may overwrite this blk and/or its bufs --'
	*
	* When importing the pool, we detect this situation and use it to stop
	* our scanning process (see l2arc_rebuild).
	*
	* There is one significant caveat to consider when rebuilding ARC contents
	* from an L2ARC device: what about invalidated buffers? Given the above
	* construction, we cannot update blocks which we've already written to amend
	* them to remove buffers which were invalidated. Thus, during reconstruction,
	* we might be populating the cache with buffers for data that's not on the
	* main pool anymore, or may have been overwritten!
	*
	* As it turns out, this isn't a problem. Every arc_read request includes
	* both the DVA and, crucially, the birth TXG of the BP the caller is
	* looking for. So even if the cache were populated by completely rotten
	* blocks for data that had been long deleted and/or overwritten, we'll
	* never actually return bad data from the cache, since the DVA with the
	* birth TXG uniquely identify a block in space and time - once created,
	* a block is immutable on disk. The worst thing we have done is wasted
	* some time and memory at l2arc rebuild to reconstruct outdated ARC
	* entries that will get dropped from the l2arc as it is being updated
	* with new blocks.
	*
	* L2ARC buffers that have been evicted by l2arc_evict() ahead of the write
	* hand are not restored. This is done by saving the offset (in bytes)
	* l2arc_evict() has evicted to in the L2ARC device header and taking it
	* into account when restoring buffers.
	*/

	static boolean_t
	l2arc_write_eligible(uint64_t spa_guid, arc_buf_hdr_t *hdr)
	{
	/*
	* A buffer is not eligible for the L2ARC if it:
	* 1. belongs to a different spa.
	* 2. is already cached on the L2ARC.
	* 3. has an I/O in progress (it may be an incomplete read).
	* 4. is flagged not eligible (zfs property).
	*/
	if (hdr->b_spa != spa_guid \|\| HDR_HAS_L2HDR(hdr) \|\|
	HDR_IO_IN_PROGRESS(hdr) \|\| !HDR_L2CACHE(hdr))
	return (B_FALSE);

	return (B_TRUE);
	}

	static uint64_t
	l2arc_write_size(l2arc_dev_t *dev)
	{
	uint64_t size, dev_size, tsize;

	/*
	* Make sure our globals have meaningful values in case the user
	* altered them.
	*/
	size = l2arc_write_max;
	if (size == 0) {
	cmn_err(CE_NOTE, "Bad value for l2arc_write_max, value must "
	"be greater than zero, resetting it to the default (%d)",
	L2ARC_WRITE_SIZE);
	size = l2arc_write_max = L2ARC_WRITE_SIZE;
	}

	if (arc_warm == B_FALSE)
	size += l2arc_write_boost;

	/*
	* Make sure the write size does not exceed the size of the cache
	* device. This is important in l2arc_evict(), otherwise infinite
	* iteration can occur.
	*/
	dev_size = dev->l2ad_end - dev->l2ad_start;
	tsize = size + l2arc_log_blk_overhead(size, dev);
	if (dev->l2ad_vdev->vdev_has_trim && l2arc_trim_ahead > 0)
	tsize += MAX(64 * 1024 * 1024,
	(tsize * l2arc_trim_ahead) / 100);

	if (tsize >= dev_size) {
	cmn_err(CE_NOTE, "l2arc_write_max or l2arc_write_boost "
	"plus the overhead of log blocks (persistent L2ARC, "
	"%llu bytes) exceeds the size of the cache device "
	"(guid %llu), resetting them to the default (%d)",
	l2arc_log_blk_overhead(size, dev),
	dev->l2ad_vdev->vdev_guid, L2ARC_WRITE_SIZE);
	size = l2arc_write_max = l2arc_write_boost = L2ARC_WRITE_SIZE;

	if (arc_warm == B_FALSE)
	size += l2arc_write_boost;
	}

	return (size);

	}

	static clock_t
	l2arc_write_interval(clock_t began, uint64_t wanted, uint64_t wrote)
	{
	clock_t interval, next, now;

	/*
	* If the ARC lists are busy, increase our write rate; if the
	* lists are stale, idle back. This is achieved by checking
	* how much we previously wrote - if it was more than half of
	* what we wanted, schedule the next write much sooner.
	*/
	if (l2arc_feed_again && wrote > (wanted / 2))
	interval = (hz * l2arc_feed_min_ms) / 1000;
	else
	interval = hz * l2arc_feed_secs;

	now = ddi_get_lbolt();
	next = MAX(now, MIN(now + interval, began + interval));

	return (next);
	}

	/*
	* Cycle through L2ARC devices. This is how L2ARC load balances.
	* If a device is returned, this also returns holding the spa config lock.
	*/
	static l2arc_dev_t *
	l2arc_dev_get_next(void)
	{
	l2arc_dev_t first, next = NULL;

	/*
	* Lock out the removal of spas (spa_namespace_lock), then removal
	* of cache devices (l2arc_dev_mtx). Once a device has been selected,
	* both locks will be dropped and a spa config lock held instead.
	*/
	mutex_enter(&spa_namespace_lock);
	mutex_enter(&l2arc_dev_mtx);

	/* if there are no vdevs, there is nothing to do */
	if (l2arc_ndev == 0)
	goto out;

	first = NULL;
	next = l2arc_dev_last;
	do {
	/* loop around the list looking for a non-faulted vdev */
	if (next == NULL) {
	next = list_head(l2arc_dev_list);
	} else {
	next = list_next(l2arc_dev_list, next);
	if (next == NULL)
	next = list_head(l2arc_dev_list);
	}

	/* if we have come back to the start, bail out */
	if (first == NULL)
	first = next;
	else if (next == first)
	break;

	} while (vdev_is_dead(next->l2ad_vdev) \|\| next->l2ad_rebuild \|\|
	next->l2ad_trim_all);

	/* if we were unable to find any usable vdevs, return NULL */
	if (vdev_is_dead(next->l2ad_vdev) \|\| next->l2ad_rebuild \|\|
	next->l2ad_trim_all)
	next = NULL;

	l2arc_dev_last = next;

	out:
	mutex_exit(&l2arc_dev_mtx);

	/*
	* Grab the config lock to prevent the 'next' device from being
	* removed while we are writing to it.
	*/
	if (next != NULL)
	spa_config_enter(next->l2ad_spa, SCL_L2ARC, next, RW_READER);
	mutex_exit(&spa_namespace_lock);

	return (next);
	}

	/*
	* Free buffers that were tagged for destruction.
	*/
	static void
	l2arc_do_free_on_write(void)
	{
	list_t *buflist;
	l2arc_data_free_t df, df_prev;

	mutex_enter(&l2arc_free_on_write_mtx);
	buflist = l2arc_free_on_write;

	for (df = list_tail(buflist); df; df = df_prev) {
	df_prev = list_prev(buflist, df);
	ASSERT3P(df->l2df_abd, !=, NULL);
	abd_free(df->l2df_abd);
	list_remove(buflist, df);
	kmem_free(df, sizeof (l2arc_data_free_t));
	}

	mutex_exit(&l2arc_free_on_write_mtx);
	}

	/*
	* A write to a cache device has completed. Update all headers to allow
	* reads from these buffers to begin.
	*/
	static void
	l2arc_write_done(zio_t *zio)
	{
	l2arc_write_callback_t *cb;
	l2arc_lb_abd_buf_t *abd_buf;
	l2arc_lb_ptr_buf_t *lb_ptr_buf;
	l2arc_dev_t *dev;
	l2arc_dev_hdr_phys_t *l2dhdr;
	list_t *buflist;
	arc_buf_hdr_t head, hdr, *hdr_prev;
	kmutex_t *hash_lock;
	int64_t bytes_dropped = 0;

	cb = zio->io_private;
	ASSERT3P(cb, !=, NULL);
	dev = cb->l2wcb_dev;
	l2dhdr = dev->l2ad_dev_hdr;
	ASSERT3P(dev, !=, NULL);
	head = cb->l2wcb_head;
	ASSERT3P(head, !=, NULL);
	buflist = &dev->l2ad_buflist;
	ASSERT3P(buflist, !=, NULL);
	DTRACE_PROBE2(l2arc__iodone, zio_t *, zio,
	l2arc_write_callback_t *, cb);

	/*
	* All writes completed, or an error was hit.
	*/
	top:
	mutex_enter(&dev->l2ad_mtx);
	for (hdr = list_prev(buflist, head); hdr; hdr = hdr_prev) {
	hdr_prev = list_prev(buflist, hdr);

	hash_lock = HDR_LOCK(hdr);

	/*
	* We cannot use mutex_enter or else we can deadlock
	* with l2arc_write_buffers (due to swapping the order
	* the hash lock and l2ad_mtx are taken).
	*/
	if (!mutex_tryenter(hash_lock)) {
	/*
	* Missed the hash lock. We must retry so we
	* don't leave the ARC_FLAG_L2_WRITING bit set.
	*/
	ARCSTAT_BUMP(arcstat_l2_writes_lock_retry);

	/*
	* We don't want to rescan the headers we've
	* already marked as having been written out, so
	* we reinsert the head node so we can pick up
	* where we left off.
	*/
	list_remove(buflist, head);
	list_insert_after(buflist, hdr, head);

	mutex_exit(&dev->l2ad_mtx);

	/*
	* We wait for the hash lock to become available
	* to try and prevent busy waiting, and increase
	* the chance we'll be able to acquire the lock
	* the next time around.
	*/
	mutex_enter(hash_lock);
	mutex_exit(hash_lock);
	goto top;
	}

	/*
	* We could not have been moved into the arc_l2c_only
	* state while in-flight due to our ARC_FLAG_L2_WRITING
	* bit being set. Let's just ensure that's being enforced.
	*/
	ASSERT(HDR_HAS_L1HDR(hdr));

	/*
	* Skipped - drop L2ARC entry and mark the header as no
	* longer L2 eligibile.
	*/
	if (zio->io_error != 0) {
	/*
	* Error - drop L2ARC entry.
	*/
	list_remove(buflist, hdr);
	arc_hdr_clear_flags(hdr, ARC_FLAG_HAS_L2HDR);

	uint64_t psize = HDR_GET_PSIZE(hdr);
	l2arc_hdr_arcstats_decrement(hdr);

	bytes_dropped +=
	vdev_psize_to_asize(dev->l2ad_vdev, psize);
	(void) zfs_refcount_remove_many(&dev->l2ad_alloc,
	arc_hdr_size(hdr), hdr);
	}

	/*
	* Allow ARC to begin reads and ghost list evictions to
	* this L2ARC entry.
	*/
	arc_hdr_clear_flags(hdr, ARC_FLAG_L2_WRITING);

	mutex_exit(hash_lock);
	}

	/*
	* Free the allocated abd buffers for writing the log blocks.
	* If the zio failed reclaim the allocated space and remove the
	* pointers to these log blocks from the log block pointer list
	* of the L2ARC device.
	*/
	while ((abd_buf = list_remove_tail(&cb->l2wcb_abd_list)) != NULL) {
	abd_free(abd_buf->abd);
	zio_buf_free(abd_buf, sizeof (*abd_buf));
	if (zio->io_error != 0) {
	lb_ptr_buf = list_remove_head(&dev->l2ad_lbptr_list);
	/*
	* L2BLK_GET_PSIZE returns aligned size for log
	* blocks.
	*/
	uint64_t asize =
	L2BLK_GET_PSIZE((lb_ptr_buf->lb_ptr)->lbp_prop);
	bytes_dropped += asize;
	ARCSTAT_INCR(arcstat_l2_log_blk_asize, -asize);
	ARCSTAT_BUMPDOWN(arcstat_l2_log_blk_count);
	zfs_refcount_remove_many(&dev->l2ad_lb_asize, asize,
	lb_ptr_buf);
	zfs_refcount_remove(&dev->l2ad_lb_count, lb_ptr_buf);
	kmem_free(lb_ptr_buf->lb_ptr,
	sizeof (l2arc_log_blkptr_t));
	kmem_free(lb_ptr_buf, sizeof (l2arc_lb_ptr_buf_t));
	}
	}
	list_destroy(&cb->l2wcb_abd_list);

	if (zio->io_error != 0) {
	ARCSTAT_BUMP(arcstat_l2_writes_error);

	/*
	* Restore the lbps array in the header to its previous state.
	* If the list of log block pointers is empty, zero out the
	* log block pointers in the device header.
	*/
	lb_ptr_buf = list_head(&dev->l2ad_lbptr_list);
	for (int i = 0; i < 2; i++) {
	if (lb_ptr_buf == NULL) {
	/*
	* If the list is empty zero out the device
	* header. Otherwise zero out the second log
	* block pointer in the header.
	*/
	if (i == 0) {
	bzero(l2dhdr, dev->l2ad_dev_hdr_asize);
	} else {
	bzero(&l2dhdr->dh_start_lbps[i],
	sizeof (l2arc_log_blkptr_t));
	}
	break;
	}
	bcopy(lb_ptr_buf->lb_ptr, &l2dhdr->dh_start_lbps[i],
	sizeof (l2arc_log_blkptr_t));
	lb_ptr_buf = list_next(&dev->l2ad_lbptr_list,
	lb_ptr_buf);
	}
	}

	atomic_inc_64(&l2arc_writes_done);
	list_remove(buflist, head);
	ASSERT(!HDR_HAS_L1HDR(head));
	kmem_cache_free(hdr_l2only_cache, head);
	mutex_exit(&dev->l2ad_mtx);

	ASSERT(dev->l2ad_vdev != NULL);
	vdev_space_update(dev->l2ad_vdev, -bytes_dropped, 0, 0);

	l2arc_do_free_on_write();

	kmem_free(cb, sizeof (l2arc_write_callback_t));
	}

	static int
	l2arc_untransform(zio_t zio, l2arc_read_callback_t cb)
	{
	int ret;
	spa_t *spa = zio->io_spa;
	arc_buf_hdr_t *hdr = cb->l2rcb_hdr;
	blkptr_t *bp = zio->io_bp;
	uint8_t salt[ZIO_DATA_SALT_LEN];
	uint8_t iv[ZIO_DATA_IV_LEN];
	uint8_t mac[ZIO_DATA_MAC_LEN];
	boolean_t no_crypt = B_FALSE;

	/*
	* ZIL data is never be written to the L2ARC, so we don't need
	* special handling for its unique MAC storage.
	*/
	ASSERT3U(BP_GET_TYPE(bp), !=, DMU_OT_INTENT_LOG);
	ASSERT(MUTEX_HELD(HDR_LOCK(hdr)));
	ASSERT3P(hdr->b_l1hdr.b_pabd, !=, NULL);

	/*
	* If the data was encrypted, decrypt it now. Note that
	* we must check the bp here and not the hdr, since the
	* hdr does not have its encryption parameters updated
	* until arc_read_done().
	*/
	if (BP_IS_ENCRYPTED(bp)) {
	abd_t *eabd = arc_get_data_abd(hdr, arc_hdr_size(hdr), hdr,
	B_TRUE);

	zio_crypt_decode_params_bp(bp, salt, iv);
	zio_crypt_decode_mac_bp(bp, mac);

	ret = spa_do_crypt_abd(B_FALSE, spa, &cb->l2rcb_zb,
	BP_GET_TYPE(bp), BP_GET_DEDUP(bp), BP_SHOULD_BYTESWAP(bp),
	salt, iv, mac, HDR_GET_PSIZE(hdr), eabd,
	hdr->b_l1hdr.b_pabd, &no_crypt);
	if (ret != 0) {
	arc_free_data_abd(hdr, eabd, arc_hdr_size(hdr), hdr);
	goto error;
	}

	/*
	* If we actually performed decryption, replace b_pabd
	* with the decrypted data. Otherwise we can just throw
	* our decryption buffer away.
	*/
	if (!no_crypt) {
	arc_free_data_abd(hdr, hdr->b_l1hdr.b_pabd,
	arc_hdr_size(hdr), hdr);
	hdr->b_l1hdr.b_pabd = eabd;
	zio->io_abd = eabd;
	} else {
	arc_free_data_abd(hdr, eabd, arc_hdr_size(hdr), hdr);
	}
	}

	/*
	* If the L2ARC block was compressed, but ARC compression
	* is disabled we decompress the data into a new buffer and
	* replace the existing data.
	*/
	if (HDR_GET_COMPRESS(hdr) != ZIO_COMPRESS_OFF &&
	!HDR_COMPRESSION_ENABLED(hdr)) {
	abd_t *cabd = arc_get_data_abd(hdr, arc_hdr_size(hdr), hdr,
	B_TRUE);
	void *tmp = abd_borrow_buf(cabd, arc_hdr_size(hdr));

	ret = zio_decompress_data(HDR_GET_COMPRESS(hdr),
	hdr->b_l1hdr.b_pabd, tmp, HDR_GET_PSIZE(hdr),
	HDR_GET_LSIZE(hdr), &hdr->b_complevel);
	if (ret != 0) {
	abd_return_buf_copy(cabd, tmp, arc_hdr_size(hdr));
	arc_free_data_abd(hdr, cabd, arc_hdr_size(hdr), hdr);
	goto error;
	}

	abd_return_buf_copy(cabd, tmp, arc_hdr_size(hdr));
	arc_free_data_abd(hdr, hdr->b_l1hdr.b_pabd,
	arc_hdr_size(hdr), hdr);
	hdr->b_l1hdr.b_pabd = cabd;
	zio->io_abd = cabd;
	zio->io_size = HDR_GET_LSIZE(hdr);
	}

	return (0);

	error:
	return (ret);
	}


	/*
	* A read to a cache device completed. Validate buffer contents before
	* handing over to the regular ARC routines.
	*/
	static void
	l2arc_read_done(zio_t *zio)
	{
	int tfm_error = 0;
	l2arc_read_callback_t *cb = zio->io_private;
	arc_buf_hdr_t *hdr;
	kmutex_t *hash_lock;
	boolean_t valid_cksum;
	boolean_t using_rdata = (BP_IS_ENCRYPTED(&cb->l2rcb_bp) &&
	(cb->l2rcb_flags & ZIO_FLAG_RAW_ENCRYPT));

	ASSERT3P(zio->io_vd, !=, NULL);
	ASSERT(zio->io_flags & ZIO_FLAG_DONT_PROPAGATE);

	spa_config_exit(zio->io_spa, SCL_L2ARC, zio->io_vd);

	ASSERT3P(cb, !=, NULL);
	hdr = cb->l2rcb_hdr;
	ASSERT3P(hdr, !=, NULL);

	hash_lock = HDR_LOCK(hdr);
	mutex_enter(hash_lock);
	ASSERT3P(hash_lock, ==, HDR_LOCK(hdr));

	/*
	* If the data was read into a temporary buffer,
	* move it and free the buffer.
	*/
	if (cb->l2rcb_abd != NULL) {
	ASSERT3U(arc_hdr_size(hdr), <, zio->io_size);
	if (zio->io_error == 0) {
	if (using_rdata) {
	abd_copy(hdr->b_crypt_hdr.b_rabd,
	cb->l2rcb_abd, arc_hdr_size(hdr));
	} else {
	abd_copy(hdr->b_l1hdr.b_pabd,
	cb->l2rcb_abd, arc_hdr_size(hdr));
	}
	}

	/*
	* The following must be done regardless of whether
	* there was an error:
	* - free the temporary buffer
	* - point zio to the real ARC buffer
	* - set zio size accordingly
	* These are required because zio is either re-used for
	* an I/O of the block in the case of the error
	* or the zio is passed to arc_read_done() and it
	* needs real data.
	*/
	abd_free(cb->l2rcb_abd);
	zio->io_size = zio->io_orig_size = arc_hdr_size(hdr);

	if (using_rdata) {
	ASSERT(HDR_HAS_RABD(hdr));
	zio->io_abd = zio->io_orig_abd =
	hdr->b_crypt_hdr.b_rabd;
	} else {
	ASSERT3P(hdr->b_l1hdr.b_pabd, !=, NULL);
	zio->io_abd = zio->io_orig_abd = hdr->b_l1hdr.b_pabd;
	}
	}

	ASSERT3P(zio->io_abd, !=, NULL);

	/*
	* Check this survived the L2ARC journey.
	*/
	ASSERT(zio->io_abd == hdr->b_l1hdr.b_pabd \|\|
	(HDR_HAS_RABD(hdr) && zio->io_abd == hdr->b_crypt_hdr.b_rabd));
	zio->io_bp_copy = cb->l2rcb_bp; /* XXX fix in L2ARC 2.0 */
	zio->io_bp = &zio->io_bp_copy; /* XXX fix in L2ARC 2.0 */
	zio->io_prop.zp_complevel = hdr->b_complevel;

	valid_cksum = arc_cksum_is_equal(hdr, zio);

	/*
	* b_rabd will always match the data as it exists on disk if it is
	* being used. Therefore if we are reading into b_rabd we do not
	* attempt to untransform the data.
	*/
	if (valid_cksum && !using_rdata)
	tfm_error = l2arc_untransform(zio, cb);

	if (valid_cksum && tfm_error == 0 && zio->io_error == 0 &&
	!HDR_L2_EVICTED(hdr)) {
	mutex_exit(hash_lock);
	zio->io_private = hdr;
	arc_read_done(zio);
	} else {
	/*
	* Buffer didn't survive caching. Increment stats and
	* reissue to the original storage device.
	*/
	if (zio->io_error != 0) {
	ARCSTAT_BUMP(arcstat_l2_io_error);
	} else {
	zio->io_error = SET_ERROR(EIO);
	}
	if (!valid_cksum \|\| tfm_error != 0)
	ARCSTAT_BUMP(arcstat_l2_cksum_bad);

	/*
	* If there's no waiter, issue an async i/o to the primary
	* storage now. If there is a waiter, the caller must
	* issue the i/o in a context where it's OK to block.
	*/
	if (zio->io_waiter == NULL) {
	zio_t *pio = zio_unique_parent(zio);
	void *abd = (using_rdata) ?
	hdr->b_crypt_hdr.b_rabd : hdr->b_l1hdr.b_pabd;

	ASSERT(!pio \|\| pio->io_child_type == ZIO_CHILD_LOGICAL);

	zio = zio_read(pio, zio->io_spa, zio->io_bp,
	abd, zio->io_size, arc_read_done,
	hdr, zio->io_priority, cb->l2rcb_flags,
	&cb->l2rcb_zb);

	/*
	* Original ZIO will be freed, so we need to update
	* ARC header with the new ZIO pointer to be used
	* by zio_change_priority() in arc_read().
	*/
	for (struct arc_callback *acb = hdr->b_l1hdr.b_acb;
	acb != NULL; acb = acb->acb_next)
	acb->acb_zio_head = zio;

	mutex_exit(hash_lock);
	zio_nowait(zio);
	} else {
	mutex_exit(hash_lock);
	}
	}

	kmem_free(cb, sizeof (l2arc_read_callback_t));
	}

	/*
	* This is the list priority from which the L2ARC will search for pages to
	* cache. This is used within loops (0..3) to cycle through lists in the
	* desired order. This order can have a significant effect on cache
	* performance.
	*
	* Currently the metadata lists are hit first, MFU then MRU, followed by
	* the data lists. This function returns a locked list, and also returns
	* the lock pointer.
	*/
	static multilist_sublist_t *
	l2arc_sublist_lock(int list_num)
	{
	multilist_t *ml = NULL;
	unsigned int idx;

	ASSERT(list_num >= 0 && list_num < L2ARC_FEED_TYPES);

	switch (list_num) {
	case 0:
	- ml = arc_mfu->arcs_list[ARC_BUFC_METADATA];
	+ ml = &arc_mfu->arcs_list[ARC_BUFC_METADATA];
	break;
	case 1:
	- ml = arc_mru->arcs_list[ARC_BUFC_METADATA];
	+ ml = &arc_mru->arcs_list[ARC_BUFC_METADATA];
	break;
	case 2:
	- ml = arc_mfu->arcs_list[ARC_BUFC_DATA];
	+ ml = &arc_mfu->arcs_list[ARC_BUFC_DATA];
	break;
	case 3:
	- ml = arc_mru->arcs_list[ARC_BUFC_DATA];
	+ ml = &arc_mru->arcs_list[ARC_BUFC_DATA];
	break;
	default:
	return (NULL);
	}

	/*
	* Return a randomly-selected sublist. This is acceptable
	* because the caller feeds only a little bit of data for each
	* call (8MB). Subsequent calls will result in different
	* sublists being selected.
	*/
	idx = multilist_get_random_index(ml);
	return (multilist_sublist_lock(ml, idx));
	}

	/*
	* Calculates the maximum overhead of L2ARC metadata log blocks for a given
	* L2ARC write size. l2arc_evict and l2arc_write_size need to include this
	* overhead in processing to make sure there is enough headroom available
	* when writing buffers.
	*/
	static inline uint64_t
	l2arc_log_blk_overhead(uint64_t write_sz, l2arc_dev_t *dev)
	{
	if (dev->l2ad_log_entries == 0) {
	return (0);
	} else {
	uint64_t log_entries = write_sz >> SPA_MINBLOCKSHIFT;

	uint64_t log_blocks = (log_entries +
	dev->l2ad_log_entries - 1) /
	dev->l2ad_log_entries;

	return (vdev_psize_to_asize(dev->l2ad_vdev,
	sizeof (l2arc_log_blk_phys_t)) * log_blocks);
	}
	}

	/*
	* Evict buffers from the device write hand to the distance specified in
	* bytes. This distance may span populated buffers, it may span nothing.
	* This is clearing a region on the L2ARC device ready for writing.
	* If the 'all' boolean is set, every buffer is evicted.
	*/
	static void
	l2arc_evict(l2arc_dev_t *dev, uint64_t distance, boolean_t all)
	{
	list_t *buflist;
	arc_buf_hdr_t hdr, hdr_prev;
	kmutex_t *hash_lock;
	uint64_t taddr;
	l2arc_lb_ptr_buf_t lb_ptr_buf, lb_ptr_buf_prev;
	vdev_t *vd = dev->l2ad_vdev;
	boolean_t rerun;

	buflist = &dev->l2ad_buflist;

	/*
	* We need to add in the worst case scenario of log block overhead.
	*/
	distance += l2arc_log_blk_overhead(distance, dev);
	if (vd->vdev_has_trim && l2arc_trim_ahead > 0) {
	/*
	* Trim ahead of the write size 64MB or (l2arc_trim_ahead/100)
	* times the write size, whichever is greater.
	*/
	distance += MAX(64 * 1024 * 1024,
	(distance * l2arc_trim_ahead) / 100);
	}

	top:
	rerun = B_FALSE;
	if (dev->l2ad_hand >= (dev->l2ad_end - distance)) {
	/*
	* When there is no space to accommodate upcoming writes,
	* evict to the end. Then bump the write and evict hands
	* to the start and iterate. This iteration does not
	* happen indefinitely as we make sure in
	* l2arc_write_size() that when the write hand is reset,
	* the write size does not exceed the end of the device.
	*/
	rerun = B_TRUE;
	taddr = dev->l2ad_end;
	} else {
	taddr = dev->l2ad_hand + distance;
	}
	DTRACE_PROBE4(l2arc__evict, l2arc_dev_t , dev, list_t , buflist,
	uint64_t, taddr, boolean_t, all);

	if (!all) {
	/*
	* This check has to be placed after deciding whether to
	* iterate (rerun).
	*/
	if (dev->l2ad_first) {
	/*
	* This is the first sweep through the device. There is
	* nothing to evict. We have already trimmmed the
	* whole device.
	*/
	goto out;
	} else {
	/*
	* Trim the space to be evicted.
	*/
	if (vd->vdev_has_trim && dev->l2ad_evict < taddr &&
	l2arc_trim_ahead > 0) {
	/*
	* We have to drop the spa_config lock because
	* vdev_trim_range() will acquire it.
	* l2ad_evict already accounts for the label
	* size. To prevent vdev_trim_ranges() from
	* adding it again, we subtract it from
	* l2ad_evict.
	*/
	spa_config_exit(dev->l2ad_spa, SCL_L2ARC, dev);
	vdev_trim_simple(vd,
	dev->l2ad_evict - VDEV_LABEL_START_SIZE,
	taddr - dev->l2ad_evict);
	spa_config_enter(dev->l2ad_spa, SCL_L2ARC, dev,
	RW_READER);
	}

	/*
	* When rebuilding L2ARC we retrieve the evict hand
	* from the header of the device. Of note, l2arc_evict()
	* does not actually delete buffers from the cache
	* device, but trimming may do so depending on the
	* hardware implementation. Thus keeping track of the
	* evict hand is useful.
	*/
	dev->l2ad_evict = MAX(dev->l2ad_evict, taddr);
	}
	}

	retry:
	mutex_enter(&dev->l2ad_mtx);
	/*
	* We have to account for evicted log blocks. Run vdev_space_update()
	* on log blocks whose offset (in bytes) is before the evicted offset
	* (in bytes) by searching in the list of pointers to log blocks
	* present in the L2ARC device.
	*/
	for (lb_ptr_buf = list_tail(&dev->l2ad_lbptr_list); lb_ptr_buf;
	lb_ptr_buf = lb_ptr_buf_prev) {

	lb_ptr_buf_prev = list_prev(&dev->l2ad_lbptr_list, lb_ptr_buf);

	/* L2BLK_GET_PSIZE returns aligned size for log blocks */
	uint64_t asize = L2BLK_GET_PSIZE(
	(lb_ptr_buf->lb_ptr)->lbp_prop);

	/*
	* We don't worry about log blocks left behind (ie
	* lbp_payload_start < l2ad_hand) because l2arc_write_buffers()
	* will never write more than l2arc_evict() evicts.
	*/
	if (!all && l2arc_log_blkptr_valid(dev, lb_ptr_buf->lb_ptr)) {
	break;
	} else {
	vdev_space_update(vd, -asize, 0, 0);
	ARCSTAT_INCR(arcstat_l2_log_blk_asize, -asize);
	ARCSTAT_BUMPDOWN(arcstat_l2_log_blk_count);
	zfs_refcount_remove_many(&dev->l2ad_lb_asize, asize,
	lb_ptr_buf);
	zfs_refcount_remove(&dev->l2ad_lb_count, lb_ptr_buf);
	list_remove(&dev->l2ad_lbptr_list, lb_ptr_buf);
	kmem_free(lb_ptr_buf->lb_ptr,
	sizeof (l2arc_log_blkptr_t));
	kmem_free(lb_ptr_buf, sizeof (l2arc_lb_ptr_buf_t));
	}
	}

	for (hdr = list_tail(buflist); hdr; hdr = hdr_prev) {
	hdr_prev = list_prev(buflist, hdr);

	ASSERT(!HDR_EMPTY(hdr));
	hash_lock = HDR_LOCK(hdr);

	/*
	* We cannot use mutex_enter or else we can deadlock
	* with l2arc_write_buffers (due to swapping the order
	* the hash lock and l2ad_mtx are taken).
	*/
	if (!mutex_tryenter(hash_lock)) {
	/*
	* Missed the hash lock. Retry.
	*/
	ARCSTAT_BUMP(arcstat_l2_evict_lock_retry);
	mutex_exit(&dev->l2ad_mtx);
	mutex_enter(hash_lock);
	mutex_exit(hash_lock);
	goto retry;
	}

	/*
	* A header can't be on this list if it doesn't have L2 header.
	*/
	ASSERT(HDR_HAS_L2HDR(hdr));

	/* Ensure this header has finished being written. */
	ASSERT(!HDR_L2_WRITING(hdr));
	ASSERT(!HDR_L2_WRITE_HEAD(hdr));

	if (!all && (hdr->b_l2hdr.b_daddr >= dev->l2ad_evict \|\|
	hdr->b_l2hdr.b_daddr < dev->l2ad_hand)) {
	/*
	* We've evicted to the target address,
	* or the end of the device.
	*/
	mutex_exit(hash_lock);
	break;
	}

	if (!HDR_HAS_L1HDR(hdr)) {
	ASSERT(!HDR_L2_READING(hdr));
	/*
	* This doesn't exist in the ARC. Destroy.
	* arc_hdr_destroy() will call list_remove()
	* and decrement arcstat_l2_lsize.
	*/
	arc_change_state(arc_anon, hdr, hash_lock);
	arc_hdr_destroy(hdr);
	} else {
	ASSERT(hdr->b_l1hdr.b_state != arc_l2c_only);
	ARCSTAT_BUMP(arcstat_l2_evict_l1cached);
	/*
	* Invalidate issued or about to be issued
	* reads, since we may be about to write
	* over this location.
	*/
	if (HDR_L2_READING(hdr)) {
	ARCSTAT_BUMP(arcstat_l2_evict_reading);
	arc_hdr_set_flags(hdr, ARC_FLAG_L2_EVICTED);
	}

	arc_hdr_l2hdr_destroy(hdr);
	}
	mutex_exit(hash_lock);
	}
	mutex_exit(&dev->l2ad_mtx);

	out:
	/*
	* We need to check if we evict all buffers, otherwise we may iterate
	* unnecessarily.
	*/
	if (!all && rerun) {
	/*
	* Bump device hand to the device start if it is approaching the
	* end. l2arc_evict() has already evicted ahead for this case.
	*/
	dev->l2ad_hand = dev->l2ad_start;
	dev->l2ad_evict = dev->l2ad_start;
	dev->l2ad_first = B_FALSE;
	goto top;
	}

	if (!all) {
	/*
	* In case of cache device removal (all) the following
	* assertions may be violated without functional consequences
	* as the device is about to be removed.
	*/
	ASSERT3U(dev->l2ad_hand + distance, <, dev->l2ad_end);
	if (!dev->l2ad_first)
	ASSERT3U(dev->l2ad_hand, <, dev->l2ad_evict);
	}
	}

	/*
	* Handle any abd transforms that might be required for writing to the L2ARC.
	* If successful, this function will always return an abd with the data
	* transformed as it is on disk in a new abd of asize bytes.
	*/
	static int
	l2arc_apply_transforms(spa_t spa, arc_buf_hdr_t hdr, uint64_t asize,
	abd_t **abd_out)
	{
	int ret;
	void *tmp = NULL;
	abd_t cabd = NULL, eabd = NULL, *to_write = hdr->b_l1hdr.b_pabd;
	enum zio_compress compress = HDR_GET_COMPRESS(hdr);
	uint64_t psize = HDR_GET_PSIZE(hdr);
	uint64_t size = arc_hdr_size(hdr);
	boolean_t ismd = HDR_ISTYPE_METADATA(hdr);
	boolean_t bswap = (hdr->b_l1hdr.b_byteswap != DMU_BSWAP_NUMFUNCS);
	dsl_crypto_key_t *dck = NULL;
	uint8_t mac[ZIO_DATA_MAC_LEN] = { 0 };
	boolean_t no_crypt = B_FALSE;

	ASSERT((HDR_GET_COMPRESS(hdr) != ZIO_COMPRESS_OFF &&
	!HDR_COMPRESSION_ENABLED(hdr)) \|\|
	HDR_ENCRYPTED(hdr) \|\| HDR_SHARED_DATA(hdr) \|\| psize != asize);
	ASSERT3U(psize, <=, asize);

	/*
	* If this data simply needs its own buffer, we simply allocate it
	* and copy the data. This may be done to eliminate a dependency on a
	* shared buffer or to reallocate the buffer to match asize.
	*/
	if (HDR_HAS_RABD(hdr) && asize != psize) {
	ASSERT3U(asize, >=, psize);
	to_write = abd_alloc_for_io(asize, ismd);
	abd_copy(to_write, hdr->b_crypt_hdr.b_rabd, psize);
	if (psize != asize)
	abd_zero_off(to_write, psize, asize - psize);
	goto out;
	}

	if ((compress == ZIO_COMPRESS_OFF \|\| HDR_COMPRESSION_ENABLED(hdr)) &&
	!HDR_ENCRYPTED(hdr)) {
	ASSERT3U(size, ==, psize);
	to_write = abd_alloc_for_io(asize, ismd);
	abd_copy(to_write, hdr->b_l1hdr.b_pabd, size);
	if (size != asize)
	abd_zero_off(to_write, size, asize - size);
	goto out;
	}

	if (compress != ZIO_COMPRESS_OFF && !HDR_COMPRESSION_ENABLED(hdr)) {
	cabd = abd_alloc_for_io(asize, ismd);
	tmp = abd_borrow_buf(cabd, asize);

	psize = zio_compress_data(compress, to_write, tmp, size,
	hdr->b_complevel);

	if (psize >= size) {
	abd_return_buf(cabd, tmp, asize);
	HDR_SET_COMPRESS(hdr, ZIO_COMPRESS_OFF);
	to_write = cabd;
	abd_copy(to_write, hdr->b_l1hdr.b_pabd, size);
	if (size != asize)
	abd_zero_off(to_write, size, asize - size);
	goto encrypt;
	}
	ASSERT3U(psize, <=, HDR_GET_PSIZE(hdr));
	if (psize < asize)
	bzero((char *)tmp + psize, asize - psize);
	psize = HDR_GET_PSIZE(hdr);
	abd_return_buf_copy(cabd, tmp, asize);
	to_write = cabd;
	}

	encrypt:
	if (HDR_ENCRYPTED(hdr)) {
	eabd = abd_alloc_for_io(asize, ismd);

	/*
	* If the dataset was disowned before the buffer
	* made it to this point, the key to re-encrypt
	* it won't be available. In this case we simply
	* won't write the buffer to the L2ARC.
	*/
	ret = spa_keystore_lookup_key(spa, hdr->b_crypt_hdr.b_dsobj,
	FTAG, &dck);
	if (ret != 0)
	goto error;

	ret = zio_do_crypt_abd(B_TRUE, &dck->dck_key,
	hdr->b_crypt_hdr.b_ot, bswap, hdr->b_crypt_hdr.b_salt,
	hdr->b_crypt_hdr.b_iv, mac, psize, to_write, eabd,
	&no_crypt);
	if (ret != 0)
	goto error;

	if (no_crypt)
	abd_copy(eabd, to_write, psize);

	if (psize != asize)
	abd_zero_off(eabd, psize, asize - psize);

	/* assert that the MAC we got here matches the one we saved */
	ASSERT0(bcmp(mac, hdr->b_crypt_hdr.b_mac, ZIO_DATA_MAC_LEN));
	spa_keystore_dsl_key_rele(spa, dck, FTAG);

	if (to_write == cabd)
	abd_free(cabd);

	to_write = eabd;
	}

	out:
	ASSERT3P(to_write, !=, hdr->b_l1hdr.b_pabd);
	*abd_out = to_write;
	return (0);

	error:
	if (dck != NULL)
	spa_keystore_dsl_key_rele(spa, dck, FTAG);
	if (cabd != NULL)
	abd_free(cabd);
	if (eabd != NULL)
	abd_free(eabd);

	*abd_out = NULL;
	return (ret);
	}

	static void
	l2arc_blk_fetch_done(zio_t *zio)
	{
	l2arc_read_callback_t *cb;

	cb = zio->io_private;
	if (cb->l2rcb_abd != NULL)
	abd_free(cb->l2rcb_abd);
	kmem_free(cb, sizeof (l2arc_read_callback_t));
	}

	/*
	* Find and write ARC buffers to the L2ARC device.
	*
	* An ARC_FLAG_L2_WRITING flag is set so that the L2ARC buffers are not valid
	* for reading until they have completed writing.
	* The headroom_boost is an in-out parameter used to maintain headroom boost
	* state between calls to this function.
	*
	* Returns the number of bytes actually written (which may be smaller than
	* the delta by which the device hand has changed due to alignment and the
	* writing of log blocks).
	*/
	static uint64_t
	l2arc_write_buffers(spa_t spa, l2arc_dev_t dev, uint64_t target_sz)
	{
	arc_buf_hdr_t hdr, hdr_prev, *head;
	uint64_t write_asize, write_psize, write_lsize, headroom;
	boolean_t full;
	l2arc_write_callback_t *cb = NULL;
	zio_t pio, wzio;
	uint64_t guid = spa_load_guid(spa);
	l2arc_dev_hdr_phys_t *l2dhdr = dev->l2ad_dev_hdr;

	ASSERT3P(dev->l2ad_vdev, !=, NULL);

	pio = NULL;
	write_lsize = write_asize = write_psize = 0;
	full = B_FALSE;
	head = kmem_cache_alloc(hdr_l2only_cache, KM_PUSHPAGE);
	arc_hdr_set_flags(head, ARC_FLAG_L2_WRITE_HEAD \| ARC_FLAG_HAS_L2HDR);

	/*
	* Copy buffers for L2ARC writing.
	*/
	for (int pass = 0; pass < L2ARC_FEED_TYPES; pass++) {
	/*
	* If pass == 1 or 3, we cache MRU metadata and data
	* respectively.
	*/
	if (l2arc_mfuonly) {
	if (pass == 1 \|\| pass == 3)
	continue;
	}

	multilist_sublist_t *mls = l2arc_sublist_lock(pass);
	uint64_t passed_sz = 0;

	VERIFY3P(mls, !=, NULL);

	/*
	* L2ARC fast warmup.
	*
	* Until the ARC is warm and starts to evict, read from the
	* head of the ARC lists rather than the tail.
	*/
	if (arc_warm == B_FALSE)
	hdr = multilist_sublist_head(mls);
	else
	hdr = multilist_sublist_tail(mls);

	headroom = target_sz * l2arc_headroom;
	if (zfs_compressed_arc_enabled)
	headroom = (headroom * l2arc_headroom_boost) / 100;

	for (; hdr; hdr = hdr_prev) {
	kmutex_t *hash_lock;
	abd_t *to_write = NULL;

	if (arc_warm == B_FALSE)
	hdr_prev = multilist_sublist_next(mls, hdr);
	else
	hdr_prev = multilist_sublist_prev(mls, hdr);

	hash_lock = HDR_LOCK(hdr);
	if (!mutex_tryenter(hash_lock)) {
	/*
	* Skip this buffer rather than waiting.
	*/
	continue;
	}

	passed_sz += HDR_GET_LSIZE(hdr);
	if (l2arc_headroom != 0 && passed_sz > headroom) {
	/*
	* Searched too far.
	*/
	mutex_exit(hash_lock);
	break;
	}

	if (!l2arc_write_eligible(guid, hdr)) {
	mutex_exit(hash_lock);
	continue;
	}

	/*
	* We rely on the L1 portion of the header below, so
	* it's invalid for this header to have been evicted out
	* of the ghost cache, prior to being written out. The
	* ARC_FLAG_L2_WRITING bit ensures this won't happen.
	*/
	ASSERT(HDR_HAS_L1HDR(hdr));

	ASSERT3U(HDR_GET_PSIZE(hdr), >, 0);
	ASSERT3U(arc_hdr_size(hdr), >, 0);
	ASSERT(hdr->b_l1hdr.b_pabd != NULL \|\|
	HDR_HAS_RABD(hdr));
	uint64_t psize = HDR_GET_PSIZE(hdr);
	uint64_t asize = vdev_psize_to_asize(dev->l2ad_vdev,
	psize);

	if ((write_asize + asize) > target_sz) {
	full = B_TRUE;
	mutex_exit(hash_lock);
	break;
	}

	/*
	* We rely on the L1 portion of the header below, so
	* it's invalid for this header to have been evicted out
	* of the ghost cache, prior to being written out. The
	* ARC_FLAG_L2_WRITING bit ensures this won't happen.
	*/
	arc_hdr_set_flags(hdr, ARC_FLAG_L2_WRITING);
	ASSERT(HDR_HAS_L1HDR(hdr));

	ASSERT3U(HDR_GET_PSIZE(hdr), >, 0);
	ASSERT(hdr->b_l1hdr.b_pabd != NULL \|\|
	HDR_HAS_RABD(hdr));
	ASSERT3U(arc_hdr_size(hdr), >, 0);

	/*
	* If this header has b_rabd, we can use this since it
	* must always match the data exactly as it exists on
	* disk. Otherwise, the L2ARC can normally use the
	* hdr's data, but if we're sharing data between the
	* hdr and one of its bufs, L2ARC needs its own copy of
	* the data so that the ZIO below can't race with the
	* buf consumer. To ensure that this copy will be
	* available for the lifetime of the ZIO and be cleaned
	* up afterwards, we add it to the l2arc_free_on_write
	* queue. If we need to apply any transforms to the
	* data (compression, encryption) we will also need the
	* extra buffer.
	*/
	if (HDR_HAS_RABD(hdr) && psize == asize) {
	to_write = hdr->b_crypt_hdr.b_rabd;
	} else if ((HDR_COMPRESSION_ENABLED(hdr) \|\|
	HDR_GET_COMPRESS(hdr) == ZIO_COMPRESS_OFF) &&
	!HDR_ENCRYPTED(hdr) && !HDR_SHARED_DATA(hdr) &&
	psize == asize) {
	to_write = hdr->b_l1hdr.b_pabd;
	} else {
	int ret;
	arc_buf_contents_t type = arc_buf_type(hdr);

	ret = l2arc_apply_transforms(spa, hdr, asize,
	&to_write);
	if (ret != 0) {
	arc_hdr_clear_flags(hdr,
	ARC_FLAG_L2_WRITING);
	mutex_exit(hash_lock);
	continue;
	}

	l2arc_free_abd_on_write(to_write, asize, type);
	}

	if (pio == NULL) {
	/*
	* Insert a dummy header on the buflist so
	* l2arc_write_done() can find where the
	* write buffers begin without searching.
	*/
	mutex_enter(&dev->l2ad_mtx);
	list_insert_head(&dev->l2ad_buflist, head);
	mutex_exit(&dev->l2ad_mtx);

	cb = kmem_alloc(
	sizeof (l2arc_write_callback_t), KM_SLEEP);
	cb->l2wcb_dev = dev;
	cb->l2wcb_head = head;
	/*
	* Create a list to save allocated abd buffers
	* for l2arc_log_blk_commit().
	*/
	list_create(&cb->l2wcb_abd_list,
	sizeof (l2arc_lb_abd_buf_t),
	offsetof(l2arc_lb_abd_buf_t, node));
	pio = zio_root(spa, l2arc_write_done, cb,
	ZIO_FLAG_CANFAIL);
	}

	hdr->b_l2hdr.b_dev = dev;
	hdr->b_l2hdr.b_hits = 0;

	hdr->b_l2hdr.b_daddr = dev->l2ad_hand;
	hdr->b_l2hdr.b_arcs_state =
	hdr->b_l1hdr.b_state->arcs_state;
	arc_hdr_set_flags(hdr, ARC_FLAG_HAS_L2HDR);

	mutex_enter(&dev->l2ad_mtx);
	list_insert_head(&dev->l2ad_buflist, hdr);
	mutex_exit(&dev->l2ad_mtx);

	(void) zfs_refcount_add_many(&dev->l2ad_alloc,
	arc_hdr_size(hdr), hdr);

	wzio = zio_write_phys(pio, dev->l2ad_vdev,
	hdr->b_l2hdr.b_daddr, asize, to_write,
	ZIO_CHECKSUM_OFF, NULL, hdr,
	ZIO_PRIORITY_ASYNC_WRITE,
	ZIO_FLAG_CANFAIL, B_FALSE);

	write_lsize += HDR_GET_LSIZE(hdr);
	DTRACE_PROBE2(l2arc__write, vdev_t *, dev->l2ad_vdev,
	zio_t *, wzio);

	write_psize += psize;
	write_asize += asize;
	dev->l2ad_hand += asize;
	l2arc_hdr_arcstats_increment(hdr);
	vdev_space_update(dev->l2ad_vdev, asize, 0, 0);

	mutex_exit(hash_lock);

	/*
	* Append buf info to current log and commit if full.
	* arcstat_l2_{size,asize} kstats are updated
	* internally.
	*/
	if (l2arc_log_blk_insert(dev, hdr))
	l2arc_log_blk_commit(dev, pio, cb);

	zio_nowait(wzio);
	}

	multilist_sublist_unlock(mls);

	if (full == B_TRUE)
	break;
	}

	/* No buffers selected for writing? */
	if (pio == NULL) {
	ASSERT0(write_lsize);
	ASSERT(!HDR_HAS_L1HDR(head));
	kmem_cache_free(hdr_l2only_cache, head);

	/*
	* Although we did not write any buffers l2ad_evict may
	* have advanced.
	*/
	if (dev->l2ad_evict != l2dhdr->dh_evict)
	l2arc_dev_hdr_update(dev);

	return (0);
	}

	if (!dev->l2ad_first)
	ASSERT3U(dev->l2ad_hand, <=, dev->l2ad_evict);

	ASSERT3U(write_asize, <=, target_sz);
	ARCSTAT_BUMP(arcstat_l2_writes_sent);
	ARCSTAT_INCR(arcstat_l2_write_bytes, write_psize);

	dev->l2ad_writing = B_TRUE;
	(void) zio_wait(pio);
	dev->l2ad_writing = B_FALSE;

	/*
	* Update the device header after the zio completes as
	* l2arc_write_done() may have updated the memory holding the log block
	* pointers in the device header.
	*/
	l2arc_dev_hdr_update(dev);

	return (write_asize);
	}

	static boolean_t
	l2arc_hdr_limit_reached(void)
	{
	int64_t s = aggsum_upper_bound(&astat_l2_hdr_size);

	return (arc_reclaim_needed() \|\| (s > arc_meta_limit * 3 / 4) \|\|
	(s > (arc_warm ? arc_c : arc_c_max) * l2arc_meta_percent / 100));
	}

	/*
	* This thread feeds the L2ARC at regular intervals. This is the beating
	* heart of the L2ARC.
	*/
	/* ARGSUSED */
	static void
	l2arc_feed_thread(void *unused)
	{
	callb_cpr_t cpr;
	l2arc_dev_t *dev;
	spa_t *spa;
	uint64_t size, wrote;
	clock_t begin, next = ddi_get_lbolt();
	fstrans_cookie_t cookie;

	CALLB_CPR_INIT(&cpr, &l2arc_feed_thr_lock, callb_generic_cpr, FTAG);

	mutex_enter(&l2arc_feed_thr_lock);

	cookie = spl_fstrans_mark();
	while (l2arc_thread_exit == 0) {
	CALLB_CPR_SAFE_BEGIN(&cpr);
	(void) cv_timedwait_idle(&l2arc_feed_thr_cv,
	&l2arc_feed_thr_lock, next);
	CALLB_CPR_SAFE_END(&cpr, &l2arc_feed_thr_lock);
	next = ddi_get_lbolt() + hz;

	/*
	* Quick check for L2ARC devices.
	*/
	mutex_enter(&l2arc_dev_mtx);
	if (l2arc_ndev == 0) {
	mutex_exit(&l2arc_dev_mtx);
	continue;
	}
	mutex_exit(&l2arc_dev_mtx);
	begin = ddi_get_lbolt();

	/*
	* This selects the next l2arc device to write to, and in
	* doing so the next spa to feed from: dev->l2ad_spa. This
	* will return NULL if there are now no l2arc devices or if
	* they are all faulted.
	*
	* If a device is returned, its spa's config lock is also
	* held to prevent device removal. l2arc_dev_get_next()
	* will grab and release l2arc_dev_mtx.
	*/
	if ((dev = l2arc_dev_get_next()) == NULL)
	continue;

	spa = dev->l2ad_spa;
	ASSERT3P(spa, !=, NULL);

	/*
	* If the pool is read-only then force the feed thread to
	* sleep a little longer.
	*/
	if (!spa_writeable(spa)) {
	next = ddi_get_lbolt() + 5 * l2arc_feed_secs * hz;
	spa_config_exit(spa, SCL_L2ARC, dev);
	continue;
	}

	/*
	* Avoid contributing to memory pressure.
	*/
	if (l2arc_hdr_limit_reached()) {
	ARCSTAT_BUMP(arcstat_l2_abort_lowmem);
	spa_config_exit(spa, SCL_L2ARC, dev);
	continue;
	}

	ARCSTAT_BUMP(arcstat_l2_feeds);

	size = l2arc_write_size(dev);

	/*
	* Evict L2ARC buffers that will be overwritten.
	*/
	l2arc_evict(dev, size, B_FALSE);

	/*
	* Write ARC buffers.
	*/
	wrote = l2arc_write_buffers(spa, dev, size);

	/*
	* Calculate interval between writes.
	*/
	next = l2arc_write_interval(begin, size, wrote);
	spa_config_exit(spa, SCL_L2ARC, dev);
	}
	spl_fstrans_unmark(cookie);

	l2arc_thread_exit = 0;
	cv_broadcast(&l2arc_feed_thr_cv);
	CALLB_CPR_EXIT(&cpr); /* drops l2arc_feed_thr_lock */
	thread_exit();
	}

	boolean_t
	l2arc_vdev_present(vdev_t *vd)
	{
	return (l2arc_vdev_get(vd) != NULL);
	}

	/*
	* Returns the l2arc_dev_t associated with a particular vdev_t or NULL if
	* the vdev_t isn't an L2ARC device.
	*/
	l2arc_dev_t *
	l2arc_vdev_get(vdev_t *vd)
	{
	l2arc_dev_t *dev;

	mutex_enter(&l2arc_dev_mtx);
	for (dev = list_head(l2arc_dev_list); dev != NULL;
	dev = list_next(l2arc_dev_list, dev)) {
	if (dev->l2ad_vdev == vd)
	break;
	}
	mutex_exit(&l2arc_dev_mtx);

	return (dev);
	}

	/*
	* Add a vdev for use by the L2ARC. By this point the spa has already
	* validated the vdev and opened it.
	*/
	void
	l2arc_add_vdev(spa_t spa, vdev_t vd)
	{
	l2arc_dev_t *adddev;
	uint64_t l2dhdr_asize;

	ASSERT(!l2arc_vdev_present(vd));

	/*
	* Create a new l2arc device entry.
	*/
	adddev = vmem_zalloc(sizeof (l2arc_dev_t), KM_SLEEP);
	adddev->l2ad_spa = spa;
	adddev->l2ad_vdev = vd;
	/* leave extra size for an l2arc device header */
	l2dhdr_asize = adddev->l2ad_dev_hdr_asize =
	MAX(sizeof (*adddev->l2ad_dev_hdr), 1 << vd->vdev_ashift);
	adddev->l2ad_start = VDEV_LABEL_START_SIZE + l2dhdr_asize;
	adddev->l2ad_end = VDEV_LABEL_START_SIZE + vdev_get_min_asize(vd);
	ASSERT3U(adddev->l2ad_start, <, adddev->l2ad_end);
	adddev->l2ad_hand = adddev->l2ad_start;
	adddev->l2ad_evict = adddev->l2ad_start;
	adddev->l2ad_first = B_TRUE;
	adddev->l2ad_writing = B_FALSE;
	adddev->l2ad_trim_all = B_FALSE;
	list_link_init(&adddev->l2ad_node);
	adddev->l2ad_dev_hdr = kmem_zalloc(l2dhdr_asize, KM_SLEEP);

	mutex_init(&adddev->l2ad_mtx, NULL, MUTEX_DEFAULT, NULL);
	/*
	* This is a list of all ARC buffers that are still valid on the
	* device.
	*/
	list_create(&adddev->l2ad_buflist, sizeof (arc_buf_hdr_t),
	offsetof(arc_buf_hdr_t, b_l2hdr.b_l2node));

	/*
	* This is a list of pointers to log blocks that are still present
	* on the device.
	*/
	list_create(&adddev->l2ad_lbptr_list, sizeof (l2arc_lb_ptr_buf_t),
	offsetof(l2arc_lb_ptr_buf_t, node));

	vdev_space_update(vd, 0, 0, adddev->l2ad_end - adddev->l2ad_hand);
	zfs_refcount_create(&adddev->l2ad_alloc);
	zfs_refcount_create(&adddev->l2ad_lb_asize);
	zfs_refcount_create(&adddev->l2ad_lb_count);

	/*
	* Add device to global list
	*/
	mutex_enter(&l2arc_dev_mtx);
	list_insert_head(l2arc_dev_list, adddev);
	atomic_inc_64(&l2arc_ndev);
	mutex_exit(&l2arc_dev_mtx);

	/*
	* Decide if vdev is eligible for L2ARC rebuild
	*/
	l2arc_rebuild_vdev(adddev->l2ad_vdev, B_FALSE);
	}

	void
	l2arc_rebuild_vdev(vdev_t *vd, boolean_t reopen)
	{
	l2arc_dev_t *dev = NULL;
	l2arc_dev_hdr_phys_t *l2dhdr;
	uint64_t l2dhdr_asize;
	spa_t *spa;

	dev = l2arc_vdev_get(vd);
	ASSERT3P(dev, !=, NULL);
	spa = dev->l2ad_spa;
	l2dhdr = dev->l2ad_dev_hdr;
	l2dhdr_asize = dev->l2ad_dev_hdr_asize;

	/*
	* The L2ARC has to hold at least the payload of one log block for
	* them to be restored (persistent L2ARC). The payload of a log block
	* depends on the amount of its log entries. We always write log blocks
	* with 1022 entries. How many of them are committed or restored depends
	* on the size of the L2ARC device. Thus the maximum payload of
	* one log block is 1022 * SPA_MAXBLOCKSIZE = 16GB. If the L2ARC device
	* is less than that, we reduce the amount of committed and restored
	* log entries per block so as to enable persistence.
	*/
	if (dev->l2ad_end < l2arc_rebuild_blocks_min_l2size) {
	dev->l2ad_log_entries = 0;
	} else {
	dev->l2ad_log_entries = MIN((dev->l2ad_end -
	dev->l2ad_start) >> SPA_MAXBLOCKSHIFT,
	L2ARC_LOG_BLK_MAX_ENTRIES);
	}

	/*
	* Read the device header, if an error is returned do not rebuild L2ARC.
	*/
	if (l2arc_dev_hdr_read(dev) == 0 && dev->l2ad_log_entries > 0) {
	/*
	* If we are onlining a cache device (vdev_reopen) that was
	* still present (l2arc_vdev_present()) and rebuild is enabled,
	* we should evict all ARC buffers and pointers to log blocks
	* and reclaim their space before restoring its contents to
	* L2ARC.
	*/
	if (reopen) {
	if (!l2arc_rebuild_enabled) {
	return;
	} else {
	l2arc_evict(dev, 0, B_TRUE);
	/* start a new log block */
	dev->l2ad_log_ent_idx = 0;
	dev->l2ad_log_blk_payload_asize = 0;
	dev->l2ad_log_blk_payload_start = 0;
	}
	}
	/*
	* Just mark the device as pending for a rebuild. We won't
	* be starting a rebuild in line here as it would block pool
	* import. Instead spa_load_impl will hand that off to an
	* async task which will call l2arc_spa_rebuild_start.
	*/
	dev->l2ad_rebuild = B_TRUE;
	} else if (spa_writeable(spa)) {
	/*
	* In this case TRIM the whole device if l2arc_trim_ahead > 0,
	* otherwise create a new header. We zero out the memory holding
	* the header to reset dh_start_lbps. If we TRIM the whole
	* device the new header will be written by
	* vdev_trim_l2arc_thread() at the end of the TRIM to update the
	* trim_state in the header too. When reading the header, if
	* trim_state is not VDEV_TRIM_COMPLETE and l2arc_trim_ahead > 0
	* we opt to TRIM the whole device again.
	*/
	if (l2arc_trim_ahead > 0) {
	dev->l2ad_trim_all = B_TRUE;
	} else {
	bzero(l2dhdr, l2dhdr_asize);
	l2arc_dev_hdr_update(dev);
	}
	}
	}

	/*
	* Remove a vdev from the L2ARC.
	*/
	void
	l2arc_remove_vdev(vdev_t *vd)
	{
	l2arc_dev_t *remdev = NULL;

	/*
	* Find the device by vdev
	*/
	remdev = l2arc_vdev_get(vd);
	ASSERT3P(remdev, !=, NULL);

	/*
	* Cancel any ongoing or scheduled rebuild.
	*/
	mutex_enter(&l2arc_rebuild_thr_lock);
	if (remdev->l2ad_rebuild_began == B_TRUE) {
	remdev->l2ad_rebuild_cancel = B_TRUE;
	while (remdev->l2ad_rebuild == B_TRUE)
	cv_wait(&l2arc_rebuild_thr_cv, &l2arc_rebuild_thr_lock);
	}
	mutex_exit(&l2arc_rebuild_thr_lock);

	/*
	* Remove device from global list
	*/
	mutex_enter(&l2arc_dev_mtx);
	list_remove(l2arc_dev_list, remdev);
	l2arc_dev_last = NULL; /* may have been invalidated */
	atomic_dec_64(&l2arc_ndev);
	mutex_exit(&l2arc_dev_mtx);

	/*
	* Clear all buflists and ARC references. L2ARC device flush.
	*/
	l2arc_evict(remdev, 0, B_TRUE);
	list_destroy(&remdev->l2ad_buflist);
	ASSERT(list_is_empty(&remdev->l2ad_lbptr_list));
	list_destroy(&remdev->l2ad_lbptr_list);
	mutex_destroy(&remdev->l2ad_mtx);
	zfs_refcount_destroy(&remdev->l2ad_alloc);
	zfs_refcount_destroy(&remdev->l2ad_lb_asize);
	zfs_refcount_destroy(&remdev->l2ad_lb_count);
	kmem_free(remdev->l2ad_dev_hdr, remdev->l2ad_dev_hdr_asize);
	vmem_free(remdev, sizeof (l2arc_dev_t));
	}

	void
	l2arc_init(void)
	{
	l2arc_thread_exit = 0;
	l2arc_ndev = 0;
	l2arc_writes_sent = 0;
	l2arc_writes_done = 0;

	mutex_init(&l2arc_feed_thr_lock, NULL, MUTEX_DEFAULT, NULL);
	cv_init(&l2arc_feed_thr_cv, NULL, CV_DEFAULT, NULL);
	mutex_init(&l2arc_rebuild_thr_lock, NULL, MUTEX_DEFAULT, NULL);
	cv_init(&l2arc_rebuild_thr_cv, NULL, CV_DEFAULT, NULL);
	mutex_init(&l2arc_dev_mtx, NULL, MUTEX_DEFAULT, NULL);
	mutex_init(&l2arc_free_on_write_mtx, NULL, MUTEX_DEFAULT, NULL);

	l2arc_dev_list = &L2ARC_dev_list;
	l2arc_free_on_write = &L2ARC_free_on_write;
	list_create(l2arc_dev_list, sizeof (l2arc_dev_t),
	offsetof(l2arc_dev_t, l2ad_node));
	list_create(l2arc_free_on_write, sizeof (l2arc_data_free_t),
	offsetof(l2arc_data_free_t, l2df_list_node));
	}

	void
	l2arc_fini(void)
	{
	mutex_destroy(&l2arc_feed_thr_lock);
	cv_destroy(&l2arc_feed_thr_cv);
	mutex_destroy(&l2arc_rebuild_thr_lock);
	cv_destroy(&l2arc_rebuild_thr_cv);
	mutex_destroy(&l2arc_dev_mtx);
	mutex_destroy(&l2arc_free_on_write_mtx);

	list_destroy(l2arc_dev_list);
	list_destroy(l2arc_free_on_write);
	}

	void
	l2arc_start(void)
	{
	if (!(spa_mode_global & SPA_MODE_WRITE))
	return;

	(void) thread_create(NULL, 0, l2arc_feed_thread, NULL, 0, &p0,
	TS_RUN, defclsyspri);
	}

	void
	l2arc_stop(void)
	{
	if (!(spa_mode_global & SPA_MODE_WRITE))
	return;

	mutex_enter(&l2arc_feed_thr_lock);
	cv_signal(&l2arc_feed_thr_cv); /* kick thread out of startup */
	l2arc_thread_exit = 1;
	while (l2arc_thread_exit != 0)
	cv_wait(&l2arc_feed_thr_cv, &l2arc_feed_thr_lock);
	mutex_exit(&l2arc_feed_thr_lock);
	}

	/*
	* Punches out rebuild threads for the L2ARC devices in a spa. This should
	* be called after pool import from the spa async thread, since starting
	* these threads directly from spa_import() will make them part of the
	* "zpool import" context and delay process exit (and thus pool import).
	*/
	void
	l2arc_spa_rebuild_start(spa_t *spa)
	{
	ASSERT(MUTEX_HELD(&spa_namespace_lock));

	/*
	* Locate the spa's l2arc devices and kick off rebuild threads.
	*/
	for (int i = 0; i < spa->spa_l2cache.sav_count; i++) {
	l2arc_dev_t *dev =
	l2arc_vdev_get(spa->spa_l2cache.sav_vdevs[i]);
	if (dev == NULL) {
	/* Don't attempt a rebuild if the vdev is UNAVAIL */
	continue;
	}
	mutex_enter(&l2arc_rebuild_thr_lock);
	if (dev->l2ad_rebuild && !dev->l2ad_rebuild_cancel) {
	dev->l2ad_rebuild_began = B_TRUE;
	(void) thread_create(NULL, 0, l2arc_dev_rebuild_thread,
	dev, 0, &p0, TS_RUN, minclsyspri);
	}
	mutex_exit(&l2arc_rebuild_thr_lock);
	}
	}

	/*
	* Main entry point for L2ARC rebuilding.
	*/
	static void
	l2arc_dev_rebuild_thread(void *arg)
	{
	l2arc_dev_t *dev = arg;

	VERIFY(!dev->l2ad_rebuild_cancel);
	VERIFY(dev->l2ad_rebuild);
	(void) l2arc_rebuild(dev);
	mutex_enter(&l2arc_rebuild_thr_lock);
	dev->l2ad_rebuild_began = B_FALSE;
	dev->l2ad_rebuild = B_FALSE;
	mutex_exit(&l2arc_rebuild_thr_lock);

	thread_exit();
	}

	/*
	* This function implements the actual L2ARC metadata rebuild. It:
	* starts reading the log block chain and restores each block's contents
	* to memory (reconstructing arc_buf_hdr_t's).
	*
	* Operation stops under any of the following conditions:
	*
	* 1) We reach the end of the log block chain.
	* 2) We encounter any error condition (cksum errors, io errors)
	*/
	static int
	l2arc_rebuild(l2arc_dev_t *dev)
	{
	vdev_t *vd = dev->l2ad_vdev;
	spa_t *spa = vd->vdev_spa;
	int err = 0;
	l2arc_dev_hdr_phys_t *l2dhdr = dev->l2ad_dev_hdr;
	l2arc_log_blk_phys_t this_lb, next_lb;
	zio_t this_io = NULL, next_io = NULL;
	l2arc_log_blkptr_t lbps[2];
	l2arc_lb_ptr_buf_t *lb_ptr_buf;
	boolean_t lock_held;

	this_lb = vmem_zalloc(sizeof (*this_lb), KM_SLEEP);
	next_lb = vmem_zalloc(sizeof (*next_lb), KM_SLEEP);

	/*
	* We prevent device removal while issuing reads to the device,
	* then during the rebuilding phases we drop this lock again so
	* that a spa_unload or device remove can be initiated - this is
	* safe, because the spa will signal us to stop before removing
	* our device and wait for us to stop.
	*/
	spa_config_enter(spa, SCL_L2ARC, vd, RW_READER);
	lock_held = B_TRUE;

	/*
	* Retrieve the persistent L2ARC device state.
	* L2BLK_GET_PSIZE returns aligned size for log blocks.
	*/
	dev->l2ad_evict = MAX(l2dhdr->dh_evict, dev->l2ad_start);
	dev->l2ad_hand = MAX(l2dhdr->dh_start_lbps[0].lbp_daddr +
	L2BLK_GET_PSIZE((&l2dhdr->dh_start_lbps[0])->lbp_prop),
	dev->l2ad_start);
	dev->l2ad_first = !!(l2dhdr->dh_flags & L2ARC_DEV_HDR_EVICT_FIRST);

	vd->vdev_trim_action_time = l2dhdr->dh_trim_action_time;
	vd->vdev_trim_state = l2dhdr->dh_trim_state;

	/*
	* In case the zfs module parameter l2arc_rebuild_enabled is false
	* we do not start the rebuild process.
	*/
	if (!l2arc_rebuild_enabled)
	goto out;

	/* Prepare the rebuild process */
	bcopy(l2dhdr->dh_start_lbps, lbps, sizeof (lbps));

	/* Start the rebuild process */
	for (;;) {
	if (!l2arc_log_blkptr_valid(dev, &lbps[0]))
	break;

	if ((err = l2arc_log_blk_read(dev, &lbps[0], &lbps[1],
	this_lb, next_lb, this_io, &next_io)) != 0)
	goto out;

	/*
	* Our memory pressure valve. If the system is running low
	* on memory, rather than swamping memory with new ARC buf
	* hdrs, we opt not to rebuild the L2ARC. At this point,
	* however, we have already set up our L2ARC dev to chain in
	* new metadata log blocks, so the user may choose to offline/
	* online the L2ARC dev at a later time (or re-import the pool)
	* to reconstruct it (when there's less memory pressure).
	*/
	if (l2arc_hdr_limit_reached()) {
	ARCSTAT_BUMP(arcstat_l2_rebuild_abort_lowmem);
	cmn_err(CE_NOTE, "System running low on memory, "
	"aborting L2ARC rebuild.");
	err = SET_ERROR(ENOMEM);
	goto out;
	}

	spa_config_exit(spa, SCL_L2ARC, vd);
	lock_held = B_FALSE;

	/*
	* Now that we know that the next_lb checks out alright, we
	* can start reconstruction from this log block.
	* L2BLK_GET_PSIZE returns aligned size for log blocks.
	*/
	uint64_t asize = L2BLK_GET_PSIZE((&lbps[0])->lbp_prop);
	l2arc_log_blk_restore(dev, this_lb, asize);

	/*
	* log block restored, include its pointer in the list of
	* pointers to log blocks present in the L2ARC device.
	*/
	lb_ptr_buf = kmem_zalloc(sizeof (l2arc_lb_ptr_buf_t), KM_SLEEP);
	lb_ptr_buf->lb_ptr = kmem_zalloc(sizeof (l2arc_log_blkptr_t),
	KM_SLEEP);
	bcopy(&lbps[0], lb_ptr_buf->lb_ptr,
	sizeof (l2arc_log_blkptr_t));
	mutex_enter(&dev->l2ad_mtx);
	list_insert_tail(&dev->l2ad_lbptr_list, lb_ptr_buf);
	ARCSTAT_INCR(arcstat_l2_log_blk_asize, asize);
	ARCSTAT_BUMP(arcstat_l2_log_blk_count);
	zfs_refcount_add_many(&dev->l2ad_lb_asize, asize, lb_ptr_buf);
	zfs_refcount_add(&dev->l2ad_lb_count, lb_ptr_buf);
	mutex_exit(&dev->l2ad_mtx);
	vdev_space_update(vd, asize, 0, 0);

	/*
	* Protection against loops of log blocks:
	*
	* l2ad_hand l2ad_evict
	* V V
	* l2ad_start \|=======================================\| l2ad_end
	* -----\|\|\|----\|\|\|---\|\|\|----\|\|\|
	* (3) (2) (1) (0)
	* ---\|\|\|---\|\|\|----\|\|\|---\|\|\|
	* (7) (6) (5) (4)
	*
	* In this situation the pointer of log block (4) passes
	* l2arc_log_blkptr_valid() but the log block should not be
	* restored as it is overwritten by the payload of log block
	* (0). Only log blocks (0)-(3) should be restored. We check
	* whether l2ad_evict lies in between the payload starting
	* offset of the next log block (lbps[1].lbp_payload_start)
	* and the payload starting offset of the present log block
	* (lbps[0].lbp_payload_start). If true and this isn't the
	* first pass, we are looping from the beginning and we should
	* stop.
	*/
	if (l2arc_range_check_overlap(lbps[1].lbp_payload_start,
	lbps[0].lbp_payload_start, dev->l2ad_evict) &&
	!dev->l2ad_first)
	goto out;

	cond_resched();
	for (;;) {
	mutex_enter(&l2arc_rebuild_thr_lock);
	if (dev->l2ad_rebuild_cancel) {
	dev->l2ad_rebuild = B_FALSE;
	cv_signal(&l2arc_rebuild_thr_cv);
	mutex_exit(&l2arc_rebuild_thr_lock);
	err = SET_ERROR(ECANCELED);
	goto out;
	}
	mutex_exit(&l2arc_rebuild_thr_lock);
	if (spa_config_tryenter(spa, SCL_L2ARC, vd,
	RW_READER)) {
	lock_held = B_TRUE;
	break;
	}
	/*
	* L2ARC config lock held by somebody in writer,
	* possibly due to them trying to remove us. They'll
	* likely to want us to shut down, so after a little
	* delay, we check l2ad_rebuild_cancel and retry
	* the lock again.
	*/
	delay(1);
	}

	/*
	* Continue with the next log block.
	*/
	lbps[0] = lbps[1];
	lbps[1] = this_lb->lb_prev_lbp;
	PTR_SWAP(this_lb, next_lb);
	this_io = next_io;
	next_io = NULL;
	}

	if (this_io != NULL)
	l2arc_log_blk_fetch_abort(this_io);
	out:
	if (next_io != NULL)
	l2arc_log_blk_fetch_abort(next_io);
	vmem_free(this_lb, sizeof (*this_lb));
	vmem_free(next_lb, sizeof (*next_lb));

	if (!l2arc_rebuild_enabled) {
	spa_history_log_internal(spa, "L2ARC rebuild", NULL,
	"disabled");
	} else if (err == 0 && zfs_refcount_count(&dev->l2ad_lb_count) > 0) {
	ARCSTAT_BUMP(arcstat_l2_rebuild_success);
	spa_history_log_internal(spa, "L2ARC rebuild", NULL,
	"successful, restored %llu blocks",
	(u_longlong_t)zfs_refcount_count(&dev->l2ad_lb_count));
	} else if (err == 0 && zfs_refcount_count(&dev->l2ad_lb_count) == 0) {
	/*
	* No error but also nothing restored, meaning the lbps array
	* in the device header points to invalid/non-present log
	* blocks. Reset the header.
	*/
	spa_history_log_internal(spa, "L2ARC rebuild", NULL,
	"no valid log blocks");
	bzero(l2dhdr, dev->l2ad_dev_hdr_asize);
	l2arc_dev_hdr_update(dev);
	} else if (err == ECANCELED) {
	/*
	* In case the rebuild was canceled do not log to spa history
	* log as the pool may be in the process of being removed.
	*/
	zfs_dbgmsg("L2ARC rebuild aborted, restored %llu blocks",
	zfs_refcount_count(&dev->l2ad_lb_count));
	} else if (err != 0) {
	spa_history_log_internal(spa, "L2ARC rebuild", NULL,
	"aborted, restored %llu blocks",
	(u_longlong_t)zfs_refcount_count(&dev->l2ad_lb_count));
	}

	if (lock_held)
	spa_config_exit(spa, SCL_L2ARC, vd);

	return (err);
	}

	/*
	* Attempts to read the device header on the provided L2ARC device and writes
	* it to `hdr'. On success, this function returns 0, otherwise the appropriate
	* error code is returned.
	*/
	static int
	l2arc_dev_hdr_read(l2arc_dev_t *dev)
	{
	int err;
	uint64_t guid;
	l2arc_dev_hdr_phys_t *l2dhdr = dev->l2ad_dev_hdr;
	const uint64_t l2dhdr_asize = dev->l2ad_dev_hdr_asize;
	abd_t *abd;

	guid = spa_guid(dev->l2ad_vdev->vdev_spa);

	abd = abd_get_from_buf(l2dhdr, l2dhdr_asize);

	err = zio_wait(zio_read_phys(NULL, dev->l2ad_vdev,
	VDEV_LABEL_START_SIZE, l2dhdr_asize, abd,
	ZIO_CHECKSUM_LABEL, NULL, NULL, ZIO_PRIORITY_SYNC_READ,
	ZIO_FLAG_DONT_CACHE \| ZIO_FLAG_CANFAIL \|
	ZIO_FLAG_DONT_PROPAGATE \| ZIO_FLAG_DONT_RETRY \|
	ZIO_FLAG_SPECULATIVE, B_FALSE));

	abd_free(abd);

	if (err != 0) {
	ARCSTAT_BUMP(arcstat_l2_rebuild_abort_dh_errors);
	zfs_dbgmsg("L2ARC IO error (%d) while reading device header, "
	"vdev guid: %llu", err, dev->l2ad_vdev->vdev_guid);
	return (err);
	}

	if (l2dhdr->dh_magic == BSWAP_64(L2ARC_DEV_HDR_MAGIC))
	byteswap_uint64_array(l2dhdr, sizeof (*l2dhdr));

	if (l2dhdr->dh_magic != L2ARC_DEV_HDR_MAGIC \|\|
	l2dhdr->dh_spa_guid != guid \|\|
	l2dhdr->dh_vdev_guid != dev->l2ad_vdev->vdev_guid \|\|
	l2dhdr->dh_version != L2ARC_PERSISTENT_VERSION \|\|
	l2dhdr->dh_log_entries != dev->l2ad_log_entries \|\|
	l2dhdr->dh_end != dev->l2ad_end \|\|
	!l2arc_range_check_overlap(dev->l2ad_start, dev->l2ad_end,
	l2dhdr->dh_evict) \|\|
	(l2dhdr->dh_trim_state != VDEV_TRIM_COMPLETE &&
	l2arc_trim_ahead > 0)) {
	/*
	* Attempt to rebuild a device containing no actual dev hdr
	* or containing a header from some other pool or from another
	* version of persistent L2ARC.
	*/
	ARCSTAT_BUMP(arcstat_l2_rebuild_abort_unsupported);
	return (SET_ERROR(ENOTSUP));
	}

	return (0);
	}

	/*
	* Reads L2ARC log blocks from storage and validates their contents.
	*
	* This function implements a simple fetcher to make sure that while
	* we're processing one buffer the L2ARC is already fetching the next
	* one in the chain.
	*
	* The arguments this_lp and next_lp point to the current and next log block
	* address in the block chain. Similarly, this_lb and next_lb hold the
	* l2arc_log_blk_phys_t's of the current and next L2ARC blk.
	*
	* The `this_io' and `next_io' arguments are used for block fetching.
	* When issuing the first blk IO during rebuild, you should pass NULL for
	* `this_io'. This function will then issue a sync IO to read the block and
	* also issue an async IO to fetch the next block in the block chain. The
	* fetched IO is returned in `next_io'. On subsequent calls to this
	* function, pass the value returned in `next_io' from the previous call
	* as `this_io' and a fresh `next_io' pointer to hold the next fetch IO.
	* Prior to the call, you should initialize your `next_io' pointer to be
	* NULL. If no fetch IO was issued, the pointer is left set at NULL.
	*
	* On success, this function returns 0, otherwise it returns an appropriate
	* error code. On error the fetching IO is aborted and cleared before
	* returning from this function. Therefore, if we return `success', the
	* caller can assume that we have taken care of cleanup of fetch IOs.
	*/
	static int
	l2arc_log_blk_read(l2arc_dev_t *dev,
	const l2arc_log_blkptr_t this_lbp, const l2arc_log_blkptr_t next_lbp,
	l2arc_log_blk_phys_t this_lb, l2arc_log_blk_phys_t next_lb,
	zio_t this_io, zio_t *next_io)
	{
	int err = 0;
	zio_cksum_t cksum;
	abd_t *abd = NULL;
	uint64_t asize;

	ASSERT(this_lbp != NULL && next_lbp != NULL);
	ASSERT(this_lb != NULL && next_lb != NULL);
	ASSERT(next_io != NULL && *next_io == NULL);
	ASSERT(l2arc_log_blkptr_valid(dev, this_lbp));

	/*
	* Check to see if we have issued the IO for this log block in a
	* previous run. If not, this is the first call, so issue it now.
	*/
	if (this_io == NULL) {
	this_io = l2arc_log_blk_fetch(dev->l2ad_vdev, this_lbp,
	this_lb);
	}

	/*
	* Peek to see if we can start issuing the next IO immediately.
	*/
	if (l2arc_log_blkptr_valid(dev, next_lbp)) {
	/*
	* Start issuing IO for the next log block early - this
	* should help keep the L2ARC device busy while we
	* decompress and restore this log block.
	*/
	*next_io = l2arc_log_blk_fetch(dev->l2ad_vdev, next_lbp,
	next_lb);
	}

	/* Wait for the IO to read this log block to complete */
	if ((err = zio_wait(this_io)) != 0) {
	ARCSTAT_BUMP(arcstat_l2_rebuild_abort_io_errors);
	zfs_dbgmsg("L2ARC IO error (%d) while reading log block, "
	"offset: %llu, vdev guid: %llu", err, this_lbp->lbp_daddr,
	dev->l2ad_vdev->vdev_guid);
	goto cleanup;
	}

	/*
	* Make sure the buffer checks out.
	* L2BLK_GET_PSIZE returns aligned size for log blocks.
	*/
	asize = L2BLK_GET_PSIZE((this_lbp)->lbp_prop);
	fletcher_4_native(this_lb, asize, NULL, &cksum);
	if (!ZIO_CHECKSUM_EQUAL(cksum, this_lbp->lbp_cksum)) {
	ARCSTAT_BUMP(arcstat_l2_rebuild_abort_cksum_lb_errors);
	zfs_dbgmsg("L2ARC log block cksum failed, offset: %llu, "
	"vdev guid: %llu, l2ad_hand: %llu, l2ad_evict: %llu",
	this_lbp->lbp_daddr, dev->l2ad_vdev->vdev_guid,
	dev->l2ad_hand, dev->l2ad_evict);
	err = SET_ERROR(ECKSUM);
	goto cleanup;
	}

	/* Now we can take our time decoding this buffer */
	switch (L2BLK_GET_COMPRESS((this_lbp)->lbp_prop)) {
	case ZIO_COMPRESS_OFF:
	break;
	case ZIO_COMPRESS_LZ4:
	abd = abd_alloc_for_io(asize, B_TRUE);
	abd_copy_from_buf_off(abd, this_lb, 0, asize);
	if ((err = zio_decompress_data(
	L2BLK_GET_COMPRESS((this_lbp)->lbp_prop),
	abd, this_lb, asize, sizeof (*this_lb), NULL)) != 0) {
	err = SET_ERROR(EINVAL);
	goto cleanup;
	}
	break;
	default:
	err = SET_ERROR(EINVAL);
	goto cleanup;
	}
	if (this_lb->lb_magic == BSWAP_64(L2ARC_LOG_BLK_MAGIC))
	byteswap_uint64_array(this_lb, sizeof (*this_lb));
	if (this_lb->lb_magic != L2ARC_LOG_BLK_MAGIC) {
	err = SET_ERROR(EINVAL);
	goto cleanup;
	}
	cleanup:
	/* Abort an in-flight fetch I/O in case of error */
	if (err != 0 && *next_io != NULL) {
	l2arc_log_blk_fetch_abort(*next_io);
	*next_io = NULL;
	}
	if (abd != NULL)
	abd_free(abd);
	return (err);
	}

	/*
	* Restores the payload of a log block to ARC. This creates empty ARC hdr
	* entries which only contain an l2arc hdr, essentially restoring the
	* buffers to their L2ARC evicted state. This function also updates space
	* usage on the L2ARC vdev to make sure it tracks restored buffers.
	*/
	static void
	l2arc_log_blk_restore(l2arc_dev_t dev, const l2arc_log_blk_phys_t lb,
	uint64_t lb_asize)
	{
	uint64_t size = 0, asize = 0;
	uint64_t log_entries = dev->l2ad_log_entries;

	/*
	* Usually arc_adapt() is called only for data, not headers, but
	* since we may allocate significant amount of memory here, let ARC
	* grow its arc_c.
	*/
	arc_adapt(log_entries * HDR_L2ONLY_SIZE, arc_l2c_only);

	for (int i = log_entries - 1; i >= 0; i--) {
	/*
	* Restore goes in the reverse temporal direction to preserve
	* correct temporal ordering of buffers in the l2ad_buflist.
	* l2arc_hdr_restore also does a list_insert_tail instead of
	* list_insert_head on the l2ad_buflist:
	*
	* LIST l2ad_buflist LIST
	* HEAD <------ (time) ------ TAIL
	* direction +-----+-----+-----+-----+-----+ direction
	* of l2arc <== \| buf \| buf \| buf \| buf \| buf \| ===> of rebuild
	* fill +-----+-----+-----+-----+-----+
	* ^ ^
	* \| \|
	* \| \|
	* l2arc_feed_thread l2arc_rebuild
	* will place new bufs here restores bufs here
	*
	* During l2arc_rebuild() the device is not used by
	* l2arc_feed_thread() as dev->l2ad_rebuild is set to true.
	*/
	size += L2BLK_GET_LSIZE((&lb->lb_entries[i])->le_prop);
	asize += vdev_psize_to_asize(dev->l2ad_vdev,
	L2BLK_GET_PSIZE((&lb->lb_entries[i])->le_prop));
	l2arc_hdr_restore(&lb->lb_entries[i], dev);
	}

	/*
	* Record rebuild stats:
	* size Logical size of restored buffers in the L2ARC
	* asize Aligned size of restored buffers in the L2ARC
	*/
	ARCSTAT_INCR(arcstat_l2_rebuild_size, size);
	ARCSTAT_INCR(arcstat_l2_rebuild_asize, asize);
	ARCSTAT_INCR(arcstat_l2_rebuild_bufs, log_entries);
	ARCSTAT_F_AVG(arcstat_l2_log_blk_avg_asize, lb_asize);
	ARCSTAT_F_AVG(arcstat_l2_data_to_meta_ratio, asize / lb_asize);
	ARCSTAT_BUMP(arcstat_l2_rebuild_log_blks);
	}

	/*
	* Restores a single ARC buf hdr from a log entry. The ARC buffer is put
	* into a state indicating that it has been evicted to L2ARC.
	*/
	static void
	l2arc_hdr_restore(const l2arc_log_ent_phys_t le, l2arc_dev_t dev)
	{
	arc_buf_hdr_t hdr, exists;
	kmutex_t *hash_lock;
	arc_buf_contents_t type = L2BLK_GET_TYPE((le)->le_prop);
	uint64_t asize;

	/*
	* Do all the allocation before grabbing any locks, this lets us
	* sleep if memory is full and we don't have to deal with failed
	* allocations.
	*/
	hdr = arc_buf_alloc_l2only(L2BLK_GET_LSIZE((le)->le_prop), type,
	dev, le->le_dva, le->le_daddr,
	L2BLK_GET_PSIZE((le)->le_prop), le->le_birth,
	L2BLK_GET_COMPRESS((le)->le_prop), le->le_complevel,
	L2BLK_GET_PROTECTED((le)->le_prop),
	L2BLK_GET_PREFETCH((le)->le_prop),
	L2BLK_GET_STATE((le)->le_prop));
	asize = vdev_psize_to_asize(dev->l2ad_vdev,
	L2BLK_GET_PSIZE((le)->le_prop));

	/*
	* vdev_space_update() has to be called before arc_hdr_destroy() to
	* avoid underflow since the latter also calls vdev_space_update().
	*/
	l2arc_hdr_arcstats_increment(hdr);
	vdev_space_update(dev->l2ad_vdev, asize, 0, 0);

	mutex_enter(&dev->l2ad_mtx);
	list_insert_tail(&dev->l2ad_buflist, hdr);
	(void) zfs_refcount_add_many(&dev->l2ad_alloc, arc_hdr_size(hdr), hdr);
	mutex_exit(&dev->l2ad_mtx);

	exists = buf_hash_insert(hdr, &hash_lock);
	if (exists) {
	/* Buffer was already cached, no need to restore it. */
	arc_hdr_destroy(hdr);
	/*
	* If the buffer is already cached, check whether it has
	* L2ARC metadata. If not, enter them and update the flag.
	* This is important is case of onlining a cache device, since
	* we previously evicted all L2ARC metadata from ARC.
	*/
	if (!HDR_HAS_L2HDR(exists)) {
	arc_hdr_set_flags(exists, ARC_FLAG_HAS_L2HDR);
	exists->b_l2hdr.b_dev = dev;
	exists->b_l2hdr.b_daddr = le->le_daddr;
	exists->b_l2hdr.b_arcs_state =
	L2BLK_GET_STATE((le)->le_prop);
	mutex_enter(&dev->l2ad_mtx);
	list_insert_tail(&dev->l2ad_buflist, exists);
	(void) zfs_refcount_add_many(&dev->l2ad_alloc,
	arc_hdr_size(exists), exists);
	mutex_exit(&dev->l2ad_mtx);
	l2arc_hdr_arcstats_increment(exists);
	vdev_space_update(dev->l2ad_vdev, asize, 0, 0);
	}
	ARCSTAT_BUMP(arcstat_l2_rebuild_bufs_precached);
	}

	mutex_exit(hash_lock);
	}

	/*
	* Starts an asynchronous read IO to read a log block. This is used in log
	* block reconstruction to start reading the next block before we are done
	* decoding and reconstructing the current block, to keep the l2arc device
	* nice and hot with read IO to process.
	* The returned zio will contain a newly allocated memory buffers for the IO
	* data which should then be freed by the caller once the zio is no longer
	* needed (i.e. due to it having completed). If you wish to abort this
	* zio, you should do so using l2arc_log_blk_fetch_abort, which takes
	* care of disposing of the allocated buffers correctly.
	*/
	static zio_t *
	l2arc_log_blk_fetch(vdev_t vd, const l2arc_log_blkptr_t lbp,
	l2arc_log_blk_phys_t *lb)
	{
	uint32_t asize;
	zio_t *pio;
	l2arc_read_callback_t *cb;

	/* L2BLK_GET_PSIZE returns aligned size for log blocks */
	asize = L2BLK_GET_PSIZE((lbp)->lbp_prop);
	ASSERT(asize <= sizeof (l2arc_log_blk_phys_t));

	cb = kmem_zalloc(sizeof (l2arc_read_callback_t), KM_SLEEP);
	cb->l2rcb_abd = abd_get_from_buf(lb, asize);
	pio = zio_root(vd->vdev_spa, l2arc_blk_fetch_done, cb,
	ZIO_FLAG_DONT_CACHE \| ZIO_FLAG_CANFAIL \| ZIO_FLAG_DONT_PROPAGATE \|
	ZIO_FLAG_DONT_RETRY);
	(void) zio_nowait(zio_read_phys(pio, vd, lbp->lbp_daddr, asize,
	cb->l2rcb_abd, ZIO_CHECKSUM_OFF, NULL, NULL,
	ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_DONT_CACHE \| ZIO_FLAG_CANFAIL \|
	ZIO_FLAG_DONT_PROPAGATE \| ZIO_FLAG_DONT_RETRY, B_FALSE));

	return (pio);
	}

	/*
	* Aborts a zio returned from l2arc_log_blk_fetch and frees the data
	* buffers allocated for it.
	*/
	static void
	l2arc_log_blk_fetch_abort(zio_t *zio)
	{
	(void) zio_wait(zio);
	}

	/*
	* Creates a zio to update the device header on an l2arc device.
	*/
	void
	l2arc_dev_hdr_update(l2arc_dev_t *dev)
	{
	l2arc_dev_hdr_phys_t *l2dhdr = dev->l2ad_dev_hdr;
	const uint64_t l2dhdr_asize = dev->l2ad_dev_hdr_asize;
	abd_t *abd;
	int err;

	VERIFY(spa_config_held(dev->l2ad_spa, SCL_STATE_ALL, RW_READER));

	l2dhdr->dh_magic = L2ARC_DEV_HDR_MAGIC;
	l2dhdr->dh_version = L2ARC_PERSISTENT_VERSION;
	l2dhdr->dh_spa_guid = spa_guid(dev->l2ad_vdev->vdev_spa);
	l2dhdr->dh_vdev_guid = dev->l2ad_vdev->vdev_guid;
	l2dhdr->dh_log_entries = dev->l2ad_log_entries;
	l2dhdr->dh_evict = dev->l2ad_evict;
	l2dhdr->dh_start = dev->l2ad_start;
	l2dhdr->dh_end = dev->l2ad_end;
	l2dhdr->dh_lb_asize = zfs_refcount_count(&dev->l2ad_lb_asize);
	l2dhdr->dh_lb_count = zfs_refcount_count(&dev->l2ad_lb_count);
	l2dhdr->dh_flags = 0;
	l2dhdr->dh_trim_action_time = dev->l2ad_vdev->vdev_trim_action_time;
	l2dhdr->dh_trim_state = dev->l2ad_vdev->vdev_trim_state;
	if (dev->l2ad_first)
	l2dhdr->dh_flags \|= L2ARC_DEV_HDR_EVICT_FIRST;

	abd = abd_get_from_buf(l2dhdr, l2dhdr_asize);

	err = zio_wait(zio_write_phys(NULL, dev->l2ad_vdev,
	VDEV_LABEL_START_SIZE, l2dhdr_asize, abd, ZIO_CHECKSUM_LABEL, NULL,
	NULL, ZIO_PRIORITY_ASYNC_WRITE, ZIO_FLAG_CANFAIL, B_FALSE));

	abd_free(abd);

	if (err != 0) {
	zfs_dbgmsg("L2ARC IO error (%d) while writing device header, "
	"vdev guid: %llu", err, dev->l2ad_vdev->vdev_guid);
	}
	}

	/*
	* Commits a log block to the L2ARC device. This routine is invoked from
	* l2arc_write_buffers when the log block fills up.
	* This function allocates some memory to temporarily hold the serialized
	* buffer to be written. This is then released in l2arc_write_done.
	*/
	static void
	l2arc_log_blk_commit(l2arc_dev_t dev, zio_t pio, l2arc_write_callback_t *cb)
	{
	l2arc_log_blk_phys_t *lb = &dev->l2ad_log_blk;
	l2arc_dev_hdr_phys_t *l2dhdr = dev->l2ad_dev_hdr;
	uint64_t psize, asize;
	zio_t *wzio;
	l2arc_lb_abd_buf_t *abd_buf;
	uint8_t *tmpbuf;
	l2arc_lb_ptr_buf_t *lb_ptr_buf;

	VERIFY3S(dev->l2ad_log_ent_idx, ==, dev->l2ad_log_entries);

	tmpbuf = zio_buf_alloc(sizeof (*lb));
	abd_buf = zio_buf_alloc(sizeof (*abd_buf));
	abd_buf->abd = abd_get_from_buf(lb, sizeof (*lb));
	lb_ptr_buf = kmem_zalloc(sizeof (l2arc_lb_ptr_buf_t), KM_SLEEP);
	lb_ptr_buf->lb_ptr = kmem_zalloc(sizeof (l2arc_log_blkptr_t), KM_SLEEP);

	/* link the buffer into the block chain */
	lb->lb_prev_lbp = l2dhdr->dh_start_lbps[1];
	lb->lb_magic = L2ARC_LOG_BLK_MAGIC;

	/*
	* l2arc_log_blk_commit() may be called multiple times during a single
	* l2arc_write_buffers() call. Save the allocated abd buffers in a list
	* so we can free them in l2arc_write_done() later on.
	*/
	list_insert_tail(&cb->l2wcb_abd_list, abd_buf);

	/* try to compress the buffer */
	psize = zio_compress_data(ZIO_COMPRESS_LZ4,
	abd_buf->abd, tmpbuf, sizeof (*lb), 0);

	/* a log block is never entirely zero */
	ASSERT(psize != 0);
	asize = vdev_psize_to_asize(dev->l2ad_vdev, psize);
	ASSERT(asize <= sizeof (*lb));

	/*
	* Update the start log block pointer in the device header to point
	* to the log block we're about to write.
	*/
	l2dhdr->dh_start_lbps[1] = l2dhdr->dh_start_lbps[0];
	l2dhdr->dh_start_lbps[0].lbp_daddr = dev->l2ad_hand;
	l2dhdr->dh_start_lbps[0].lbp_payload_asize =
	dev->l2ad_log_blk_payload_asize;
	l2dhdr->dh_start_lbps[0].lbp_payload_start =
	dev->l2ad_log_blk_payload_start;
	_NOTE(CONSTCOND)
	L2BLK_SET_LSIZE(
	(&l2dhdr->dh_start_lbps[0])->lbp_prop, sizeof (*lb));
	L2BLK_SET_PSIZE(
	(&l2dhdr->dh_start_lbps[0])->lbp_prop, asize);
	L2BLK_SET_CHECKSUM(
	(&l2dhdr->dh_start_lbps[0])->lbp_prop,
	ZIO_CHECKSUM_FLETCHER_4);
	if (asize < sizeof (*lb)) {
	/* compression succeeded */
	bzero(tmpbuf + psize, asize - psize);
	L2BLK_SET_COMPRESS(
	(&l2dhdr->dh_start_lbps[0])->lbp_prop,
	ZIO_COMPRESS_LZ4);
	} else {
	/* compression failed */
	bcopy(lb, tmpbuf, sizeof (*lb));
	L2BLK_SET_COMPRESS(
	(&l2dhdr->dh_start_lbps[0])->lbp_prop,
	ZIO_COMPRESS_OFF);
	}

	/* checksum what we're about to write */
	fletcher_4_native(tmpbuf, asize, NULL,
	&l2dhdr->dh_start_lbps[0].lbp_cksum);

	abd_free(abd_buf->abd);

	/* perform the write itself */
	abd_buf->abd = abd_get_from_buf(tmpbuf, sizeof (*lb));
	abd_take_ownership_of_buf(abd_buf->abd, B_TRUE);
	wzio = zio_write_phys(pio, dev->l2ad_vdev, dev->l2ad_hand,
	asize, abd_buf->abd, ZIO_CHECKSUM_OFF, NULL, NULL,
	ZIO_PRIORITY_ASYNC_WRITE, ZIO_FLAG_CANFAIL, B_FALSE);
	DTRACE_PROBE2(l2arc__write, vdev_t , dev->l2ad_vdev, zio_t , wzio);
	(void) zio_nowait(wzio);

	dev->l2ad_hand += asize;
	/*
	* Include the committed log block's pointer in the list of pointers
	* to log blocks present in the L2ARC device.
	*/
	bcopy(&l2dhdr->dh_start_lbps[0], lb_ptr_buf->lb_ptr,
	sizeof (l2arc_log_blkptr_t));
	mutex_enter(&dev->l2ad_mtx);
	list_insert_head(&dev->l2ad_lbptr_list, lb_ptr_buf);
	ARCSTAT_INCR(arcstat_l2_log_blk_asize, asize);
	ARCSTAT_BUMP(arcstat_l2_log_blk_count);
	zfs_refcount_add_many(&dev->l2ad_lb_asize, asize, lb_ptr_buf);
	zfs_refcount_add(&dev->l2ad_lb_count, lb_ptr_buf);
	mutex_exit(&dev->l2ad_mtx);
	vdev_space_update(dev->l2ad_vdev, asize, 0, 0);

	/* bump the kstats */
	ARCSTAT_INCR(arcstat_l2_write_bytes, asize);
	ARCSTAT_BUMP(arcstat_l2_log_blk_writes);
	ARCSTAT_F_AVG(arcstat_l2_log_blk_avg_asize, asize);
	ARCSTAT_F_AVG(arcstat_l2_data_to_meta_ratio,
	dev->l2ad_log_blk_payload_asize / asize);

	/* start a new log block */
	dev->l2ad_log_ent_idx = 0;
	dev->l2ad_log_blk_payload_asize = 0;
	dev->l2ad_log_blk_payload_start = 0;
	}

	/*
	* Validates an L2ARC log block address to make sure that it can be read
	* from the provided L2ARC device.
	*/
	boolean_t
	l2arc_log_blkptr_valid(l2arc_dev_t dev, const l2arc_log_blkptr_t lbp)
	{
	/* L2BLK_GET_PSIZE returns aligned size for log blocks */
	uint64_t asize = L2BLK_GET_PSIZE((lbp)->lbp_prop);
	uint64_t end = lbp->lbp_daddr + asize - 1;
	uint64_t start = lbp->lbp_payload_start;
	boolean_t evicted = B_FALSE;

	/*
	* A log block is valid if all of the following conditions are true:
	* - it fits entirely (including its payload) between l2ad_start and
	* l2ad_end
	* - it has a valid size
	* - neither the log block itself nor part of its payload was evicted
	* by l2arc_evict():
	*
	* l2ad_hand l2ad_evict
	* \| \| lbp_daddr
	* \| start \| \| end
	* \| \| \| \| \|
	* V V V V V
	* l2ad_start ============================================ l2ad_end
	* --------------------------\|\|\|\|
	* ^ ^
	* \| log block
	* payload
	*/

	evicted =
	l2arc_range_check_overlap(start, end, dev->l2ad_hand) \|\|
	l2arc_range_check_overlap(start, end, dev->l2ad_evict) \|\|
	l2arc_range_check_overlap(dev->l2ad_hand, dev->l2ad_evict, start) \|\|
	l2arc_range_check_overlap(dev->l2ad_hand, dev->l2ad_evict, end);

	return (start >= dev->l2ad_start && end <= dev->l2ad_end &&
	asize > 0 && asize <= sizeof (l2arc_log_blk_phys_t) &&
	(!evicted \|\| dev->l2ad_first));
	}

	/*
	* Inserts ARC buffer header `hdr' into the current L2ARC log block on
	* the device. The buffer being inserted must be present in L2ARC.
	* Returns B_TRUE if the L2ARC log block is full and needs to be committed
	* to L2ARC, or B_FALSE if it still has room for more ARC buffers.
	*/
	static boolean_t
	l2arc_log_blk_insert(l2arc_dev_t dev, const arc_buf_hdr_t hdr)
	{
	l2arc_log_blk_phys_t *lb = &dev->l2ad_log_blk;
	l2arc_log_ent_phys_t *le;

	if (dev->l2ad_log_entries == 0)
	return (B_FALSE);

	int index = dev->l2ad_log_ent_idx++;

	ASSERT3S(index, <, dev->l2ad_log_entries);
	ASSERT(HDR_HAS_L2HDR(hdr));

	le = &lb->lb_entries[index];
	bzero(le, sizeof (*le));
	le->le_dva = hdr->b_dva;
	le->le_birth = hdr->b_birth;
	le->le_daddr = hdr->b_l2hdr.b_daddr;
	if (index == 0)
	dev->l2ad_log_blk_payload_start = le->le_daddr;
	L2BLK_SET_LSIZE((le)->le_prop, HDR_GET_LSIZE(hdr));
	L2BLK_SET_PSIZE((le)->le_prop, HDR_GET_PSIZE(hdr));
	L2BLK_SET_COMPRESS((le)->le_prop, HDR_GET_COMPRESS(hdr));
	le->le_complevel = hdr->b_complevel;
	L2BLK_SET_TYPE((le)->le_prop, hdr->b_type);
	L2BLK_SET_PROTECTED((le)->le_prop, !!(HDR_PROTECTED(hdr)));
	L2BLK_SET_PREFETCH((le)->le_prop, !!(HDR_PREFETCH(hdr)));
	L2BLK_SET_STATE((le)->le_prop, hdr->b_l1hdr.b_state->arcs_state);

	dev->l2ad_log_blk_payload_asize += vdev_psize_to_asize(dev->l2ad_vdev,
	HDR_GET_PSIZE(hdr));

	return (dev->l2ad_log_ent_idx == dev->l2ad_log_entries);
	}

	/*
	* Checks whether a given L2ARC device address sits in a time-sequential
	* range. The trick here is that the L2ARC is a rotary buffer, so we can't
	* just do a range comparison, we need to handle the situation in which the
	* range wraps around the end of the L2ARC device. Arguments:
	* bottom -- Lower end of the range to check (written to earlier).
	* top -- Upper end of the range to check (written to later).
	* check -- The address for which we want to determine if it sits in
	* between the top and bottom.
	*
	* The 3-way conditional below represents the following cases:
	*
	* bottom < top : Sequentially ordered case:
	* <check>--------+-------------------+
	* \| (overlap here?) \|
	* L2ARC dev V V
	* \|---------------<bottom>============<top>--------------\|
	*
	* bottom > top: Looped-around case:
	* <check>--------+------------------+
	* \| (overlap here?) \|
	* L2ARC dev V V
	* \|===============<top>---------------<bottom>===========\|
	* ^ ^
	* \| (or here?) \|
	* +---------------+---------<check>
	*
	* top == bottom : Just a single address comparison.
	*/
	boolean_t
	l2arc_range_check_overlap(uint64_t bottom, uint64_t top, uint64_t check)
	{
	if (bottom < top)
	return (bottom <= check && check <= top);
	else if (bottom > top)
	return (check <= top \|\| bottom <= check);
	else
	return (check == top);
	}

	EXPORT_SYMBOL(arc_buf_size);
	EXPORT_SYMBOL(arc_write);
	EXPORT_SYMBOL(arc_read);
	EXPORT_SYMBOL(arc_buf_info);
	EXPORT_SYMBOL(arc_getbuf_func);
	EXPORT_SYMBOL(arc_add_prune_callback);
	EXPORT_SYMBOL(arc_remove_prune_callback);

	/* BEGIN CSTYLED */
	ZFS_MODULE_PARAM_CALL(zfs_arc, zfs_arc_, min, param_set_arc_long,
	param_get_long, ZMOD_RW, "Min arc size");

	ZFS_MODULE_PARAM_CALL(zfs_arc, zfs_arc_, max, param_set_arc_long,
	param_get_long, ZMOD_RW, "Max arc size");

	ZFS_MODULE_PARAM_CALL(zfs_arc, zfs_arc_, meta_limit, param_set_arc_long,
	param_get_long, ZMOD_RW, "Metadata limit for arc size");

	ZFS_MODULE_PARAM_CALL(zfs_arc, zfs_arc_, meta_limit_percent,
	param_set_arc_long, param_get_long, ZMOD_RW,
	"Percent of arc size for arc meta limit");

	ZFS_MODULE_PARAM_CALL(zfs_arc, zfs_arc_, meta_min, param_set_arc_long,
	param_get_long, ZMOD_RW, "Min arc metadata");

	ZFS_MODULE_PARAM(zfs_arc, zfs_arc_, meta_prune, INT, ZMOD_RW,
	"Meta objects to scan for prune");

	ZFS_MODULE_PARAM(zfs_arc, zfs_arc_, meta_adjust_restarts, INT, ZMOD_RW,
	"Limit number of restarts in arc_evict_meta");

	ZFS_MODULE_PARAM(zfs_arc, zfs_arc_, meta_strategy, INT, ZMOD_RW,
	"Meta reclaim strategy");

	ZFS_MODULE_PARAM_CALL(zfs_arc, zfs_arc_, grow_retry, param_set_arc_int,
	param_get_int, ZMOD_RW, "Seconds before growing arc size");

	ZFS_MODULE_PARAM(zfs_arc, zfs_arc_, p_dampener_disable, INT, ZMOD_RW,
	"Disable arc_p adapt dampener");

	ZFS_MODULE_PARAM_CALL(zfs_arc, zfs_arc_, shrink_shift, param_set_arc_int,
	param_get_int, ZMOD_RW, "log2(fraction of arc to reclaim)");

	ZFS_MODULE_PARAM(zfs_arc, zfs_arc_, pc_percent, UINT, ZMOD_RW,
	"Percent of pagecache to reclaim arc to");

	ZFS_MODULE_PARAM_CALL(zfs_arc, zfs_arc_, p_min_shift, param_set_arc_int,
	param_get_int, ZMOD_RW, "arc_c shift to calc min/max arc_p");

	ZFS_MODULE_PARAM(zfs_arc, zfs_arc_, average_blocksize, INT, ZMOD_RD,
	"Target average block size");

	ZFS_MODULE_PARAM(zfs, zfs_, compressed_arc_enabled, INT, ZMOD_RW,
	"Disable compressed arc buffers");

	ZFS_MODULE_PARAM_CALL(zfs_arc, zfs_arc_, min_prefetch_ms, param_set_arc_int,
	param_get_int, ZMOD_RW, "Min life of prefetch block in ms");

	ZFS_MODULE_PARAM_CALL(zfs_arc, zfs_arc_, min_prescient_prefetch_ms,
	param_set_arc_int, param_get_int, ZMOD_RW,
	"Min life of prescient prefetched block in ms");

	ZFS_MODULE_PARAM(zfs_l2arc, l2arc_, write_max, ULONG, ZMOD_RW,
	"Max write bytes per interval");

	ZFS_MODULE_PARAM(zfs_l2arc, l2arc_, write_boost, ULONG, ZMOD_RW,
	"Extra write bytes during device warmup");

	ZFS_MODULE_PARAM(zfs_l2arc, l2arc_, headroom, ULONG, ZMOD_RW,
	"Number of max device writes to precache");

	ZFS_MODULE_PARAM(zfs_l2arc, l2arc_, headroom_boost, ULONG, ZMOD_RW,
	"Compressed l2arc_headroom multiplier");

	ZFS_MODULE_PARAM(zfs_l2arc, l2arc_, trim_ahead, ULONG, ZMOD_RW,
	"TRIM ahead L2ARC write size multiplier");

	ZFS_MODULE_PARAM(zfs_l2arc, l2arc_, feed_secs, ULONG, ZMOD_RW,
	"Seconds between L2ARC writing");

	ZFS_MODULE_PARAM(zfs_l2arc, l2arc_, feed_min_ms, ULONG, ZMOD_RW,
	"Min feed interval in milliseconds");

	ZFS_MODULE_PARAM(zfs_l2arc, l2arc_, noprefetch, INT, ZMOD_RW,
	"Skip caching prefetched buffers");

	ZFS_MODULE_PARAM(zfs_l2arc, l2arc_, feed_again, INT, ZMOD_RW,
	"Turbo L2ARC warmup");

	ZFS_MODULE_PARAM(zfs_l2arc, l2arc_, norw, INT, ZMOD_RW,
	"No reads during writes");

	ZFS_MODULE_PARAM(zfs_l2arc, l2arc_, meta_percent, INT, ZMOD_RW,
	"Percent of ARC size allowed for L2ARC-only headers");

	ZFS_MODULE_PARAM(zfs_l2arc, l2arc_, rebuild_enabled, INT, ZMOD_RW,
	"Rebuild the L2ARC when importing a pool");

	ZFS_MODULE_PARAM(zfs_l2arc, l2arc_, rebuild_blocks_min_l2size, ULONG, ZMOD_RW,
	"Min size in bytes to write rebuild log blocks in L2ARC");

	ZFS_MODULE_PARAM(zfs_l2arc, l2arc_, mfuonly, INT, ZMOD_RW,
	"Cache only MFU data from ARC into L2ARC");

	ZFS_MODULE_PARAM_CALL(zfs_arc, zfs_arc_, lotsfree_percent, param_set_arc_int,
	param_get_int, ZMOD_RW, "System free memory I/O throttle in bytes");

	ZFS_MODULE_PARAM_CALL(zfs_arc, zfs_arc_, sys_free, param_set_arc_long,
	param_get_long, ZMOD_RW, "System free memory target size in bytes");

	ZFS_MODULE_PARAM_CALL(zfs_arc, zfs_arc_, dnode_limit, param_set_arc_long,
	param_get_long, ZMOD_RW, "Minimum bytes of dnodes in arc");

	ZFS_MODULE_PARAM_CALL(zfs_arc, zfs_arc_, dnode_limit_percent,
	param_set_arc_long, param_get_long, ZMOD_RW,
	"Percent of ARC meta buffers for dnodes");

	ZFS_MODULE_PARAM(zfs_arc, zfs_arc_, dnode_reduce_percent, ULONG, ZMOD_RW,
	"Percentage of excess dnodes to try to unpin");

	ZFS_MODULE_PARAM(zfs_arc, zfs_arc_, eviction_pct, INT, ZMOD_RW,
	"When full, ARC allocation waits for eviction of this % of alloc size");

	ZFS_MODULE_PARAM(zfs_arc, zfs_arc_, evict_batch_limit, INT, ZMOD_RW,
	"The number of headers to evict per sublist before moving to the next");
	/* END CSTYLED */
	diff --git a/sys/contrib/openzfs/module/zfs/dbuf.c b/sys/contrib/openzfs/module/zfs/dbuf.c
	index 764383b2d039..9d741545fae3 100644
	--- a/sys/contrib/openzfs/module/zfs/dbuf.c
	+++ b/sys/contrib/openzfs/module/zfs/dbuf.c
	@@ -1,4957 +1,4957 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
	* Copyright (c) 2012, 2020 by Delphix. All rights reserved.
	* Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	* Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
	* Copyright (c) 2019, Klara Inc.
	* Copyright (c) 2019, Allan Jude
	*/

	#include <sys/zfs_context.h>
	#include <sys/arc.h>
	#include <sys/dmu.h>
	#include <sys/dmu_send.h>
	#include <sys/dmu_impl.h>
	#include <sys/dbuf.h>
	#include <sys/dmu_objset.h>
	#include <sys/dsl_dataset.h>
	#include <sys/dsl_dir.h>
	#include <sys/dmu_tx.h>
	#include <sys/spa.h>
	#include <sys/zio.h>
	#include <sys/dmu_zfetch.h>
	#include <sys/sa.h>
	#include <sys/sa_impl.h>
	#include <sys/zfeature.h>
	#include <sys/blkptr.h>
	#include <sys/range_tree.h>
	#include <sys/trace_zfs.h>
	#include <sys/callb.h>
	#include <sys/abd.h>
	#include <sys/vdev.h>
	#include <cityhash.h>
	#include <sys/spa_impl.h>

	kstat_t *dbuf_ksp;

	typedef struct dbuf_stats {
	/*
	* Various statistics about the size of the dbuf cache.
	*/
	kstat_named_t cache_count;
	kstat_named_t cache_size_bytes;
	kstat_named_t cache_size_bytes_max;
	/*
	* Statistics regarding the bounds on the dbuf cache size.
	*/
	kstat_named_t cache_target_bytes;
	kstat_named_t cache_lowater_bytes;
	kstat_named_t cache_hiwater_bytes;
	/*
	* Total number of dbuf cache evictions that have occurred.
	*/
	kstat_named_t cache_total_evicts;
	/*
	* The distribution of dbuf levels in the dbuf cache and
	* the total size of all dbufs at each level.
	*/
	kstat_named_t cache_levels[DN_MAX_LEVELS];
	kstat_named_t cache_levels_bytes[DN_MAX_LEVELS];
	/*
	* Statistics about the dbuf hash table.
	*/
	kstat_named_t hash_hits;
	kstat_named_t hash_misses;
	kstat_named_t hash_collisions;
	kstat_named_t hash_elements;
	kstat_named_t hash_elements_max;
	/*
	* Number of sublists containing more than one dbuf in the dbuf
	* hash table. Keep track of the longest hash chain.
	*/
	kstat_named_t hash_chains;
	kstat_named_t hash_chain_max;
	/*
	* Number of times a dbuf_create() discovers that a dbuf was
	* already created and in the dbuf hash table.
	*/
	kstat_named_t hash_insert_race;
	/*
	* Statistics about the size of the metadata dbuf cache.
	*/
	kstat_named_t metadata_cache_count;
	kstat_named_t metadata_cache_size_bytes;
	kstat_named_t metadata_cache_size_bytes_max;
	/*
	* For diagnostic purposes, this is incremented whenever we can't add
	* something to the metadata cache because it's full, and instead put
	* the data in the regular dbuf cache.
	*/
	kstat_named_t metadata_cache_overflow;
	} dbuf_stats_t;

	dbuf_stats_t dbuf_stats = {
	{ "cache_count", KSTAT_DATA_UINT64 },
	{ "cache_size_bytes", KSTAT_DATA_UINT64 },
	{ "cache_size_bytes_max", KSTAT_DATA_UINT64 },
	{ "cache_target_bytes", KSTAT_DATA_UINT64 },
	{ "cache_lowater_bytes", KSTAT_DATA_UINT64 },
	{ "cache_hiwater_bytes", KSTAT_DATA_UINT64 },
	{ "cache_total_evicts", KSTAT_DATA_UINT64 },
	{ { "cache_levels_N", KSTAT_DATA_UINT64 } },
	{ { "cache_levels_bytes_N", KSTAT_DATA_UINT64 } },
	{ "hash_hits", KSTAT_DATA_UINT64 },
	{ "hash_misses", KSTAT_DATA_UINT64 },
	{ "hash_collisions", KSTAT_DATA_UINT64 },
	{ "hash_elements", KSTAT_DATA_UINT64 },
	{ "hash_elements_max", KSTAT_DATA_UINT64 },
	{ "hash_chains", KSTAT_DATA_UINT64 },
	{ "hash_chain_max", KSTAT_DATA_UINT64 },
	{ "hash_insert_race", KSTAT_DATA_UINT64 },
	{ "metadata_cache_count", KSTAT_DATA_UINT64 },
	{ "metadata_cache_size_bytes", KSTAT_DATA_UINT64 },
	{ "metadata_cache_size_bytes_max", KSTAT_DATA_UINT64 },
	{ "metadata_cache_overflow", KSTAT_DATA_UINT64 }
	};

	#define DBUF_STAT_INCR(stat, val) \
	atomic_add_64(&dbuf_stats.stat.value.ui64, (val));
	#define DBUF_STAT_DECR(stat, val) \
	DBUF_STAT_INCR(stat, -(val));
	#define DBUF_STAT_BUMP(stat) \
	DBUF_STAT_INCR(stat, 1);
	#define DBUF_STAT_BUMPDOWN(stat) \
	DBUF_STAT_INCR(stat, -1);
	#define DBUF_STAT_MAX(stat, v) { \
	uint64_t _m; \
	while ((v) > (_m = dbuf_stats.stat.value.ui64) && \
	(_m != atomic_cas_64(&dbuf_stats.stat.value.ui64, _m, (v))))\
	continue; \
	}

	static boolean_t dbuf_undirty(dmu_buf_impl_t db, dmu_tx_t tx);
	static void dbuf_write(dbuf_dirty_record_t dr, arc_buf_t data, dmu_tx_t *tx);
	static void dbuf_sync_leaf_verify_bonus_dnode(dbuf_dirty_record_t *dr);
	static int dbuf_read_verify_dnode_crypt(dmu_buf_impl_t *db, uint32_t flags);

	extern inline void dmu_buf_init_user(dmu_buf_user_t *dbu,
	dmu_buf_evict_func_t *evict_func_sync,
	dmu_buf_evict_func_t *evict_func_async,
	dmu_buf_t **clear_on_evict_dbufp);

	/*
	* Global data structures and functions for the dbuf cache.
	*/
	static kmem_cache_t *dbuf_kmem_cache;
	static taskq_t *dbu_evict_taskq;

	static kthread_t *dbuf_cache_evict_thread;
	static kmutex_t dbuf_evict_lock;
	static kcondvar_t dbuf_evict_cv;
	static boolean_t dbuf_evict_thread_exit;

	/*
	* There are two dbuf caches; each dbuf can only be in one of them at a time.
	*
	* 1. Cache of metadata dbufs, to help make read-heavy administrative commands
	* from /sbin/zfs run faster. The "metadata cache" specifically stores dbufs
	* that represent the metadata that describes filesystems/snapshots/
	* bookmarks/properties/etc. We only evict from this cache when we export a
	* pool, to short-circuit as much I/O as possible for all administrative
	* commands that need the metadata. There is no eviction policy for this
	* cache, because we try to only include types in it which would occupy a
	* very small amount of space per object but create a large impact on the
	* performance of these commands. Instead, after it reaches a maximum size
	* (which should only happen on very small memory systems with a very large
	* number of filesystem objects), we stop taking new dbufs into the
	* metadata cache, instead putting them in the normal dbuf cache.
	*
	* 2. LRU cache of dbufs. The dbuf cache maintains a list of dbufs that
	* are not currently held but have been recently released. These dbufs
	* are not eligible for arc eviction until they are aged out of the cache.
	* Dbufs that are aged out of the cache will be immediately destroyed and
	* become eligible for arc eviction.
	*
	* Dbufs are added to these caches once the last hold is released. If a dbuf is
	* later accessed and still exists in the dbuf cache, then it will be removed
	* from the cache and later re-added to the head of the cache.
	*
	* If a given dbuf meets the requirements for the metadata cache, it will go
	* there, otherwise it will be considered for the generic LRU dbuf cache. The
	* caches and the refcounts tracking their sizes are stored in an array indexed
	* by those caches' matching enum values (from dbuf_cached_state_t).
	*/
	typedef struct dbuf_cache {
	- multilist_t *cache;
	- zfs_refcount_t size;
	+ multilist_t cache;
	+ zfs_refcount_t size ____cacheline_aligned;
	} dbuf_cache_t;
	dbuf_cache_t dbuf_caches[DB_CACHE_MAX];

	/* Size limits for the caches */
	unsigned long dbuf_cache_max_bytes = ULONG_MAX;
	unsigned long dbuf_metadata_cache_max_bytes = ULONG_MAX;

	/* Set the default sizes of the caches to log2 fraction of arc size */
	int dbuf_cache_shift = 5;
	int dbuf_metadata_cache_shift = 6;

	static unsigned long dbuf_cache_target_bytes(void);
	static unsigned long dbuf_metadata_cache_target_bytes(void);

	/*
	* The LRU dbuf cache uses a three-stage eviction policy:
	* - A low water marker designates when the dbuf eviction thread
	* should stop evicting from the dbuf cache.
	* - When we reach the maximum size (aka mid water mark), we
	* signal the eviction thread to run.
	* - The high water mark indicates when the eviction thread
	* is unable to keep up with the incoming load and eviction must
	* happen in the context of the calling thread.
	*
	* The dbuf cache:
	* (max size)
	* low water mid water hi water
	* +----------------------------------------+----------+----------+
	* \| \| \| \|
	* \| \| \| \|
	* \| \| \| \|
	* \| \| \| \|
	* +----------------------------------------+----------+----------+
	* stop signal evict
	* evicting eviction directly
	* thread
	*
	* The high and low water marks indicate the operating range for the eviction
	* thread. The low water mark is, by default, 90% of the total size of the
	* cache and the high water mark is at 110% (both of these percentages can be
	* changed by setting dbuf_cache_lowater_pct and dbuf_cache_hiwater_pct,
	* respectively). The eviction thread will try to ensure that the cache remains
	* within this range by waking up every second and checking if the cache is
	* above the low water mark. The thread can also be woken up by callers adding
	* elements into the cache if the cache is larger than the mid water (i.e max
	* cache size). Once the eviction thread is woken up and eviction is required,
	* it will continue evicting buffers until it's able to reduce the cache size
	* to the low water mark. If the cache size continues to grow and hits the high
	* water mark, then callers adding elements to the cache will begin to evict
	* directly from the cache until the cache is no longer above the high water
	* mark.
	*/

	/*
	* The percentage above and below the maximum cache size.
	*/
	uint_t dbuf_cache_hiwater_pct = 10;
	uint_t dbuf_cache_lowater_pct = 10;

	/* ARGSUSED */
	static int
	dbuf_cons(void vdb, void unused, int kmflag)
	{
	dmu_buf_impl_t *db = vdb;
	bzero(db, sizeof (dmu_buf_impl_t));

	mutex_init(&db->db_mtx, NULL, MUTEX_DEFAULT, NULL);
	rw_init(&db->db_rwlock, NULL, RW_DEFAULT, NULL);
	cv_init(&db->db_changed, NULL, CV_DEFAULT, NULL);
	multilist_link_init(&db->db_cache_link);
	zfs_refcount_create(&db->db_holds);

	return (0);
	}

	/* ARGSUSED */
	static void
	dbuf_dest(void vdb, void unused)
	{
	dmu_buf_impl_t *db = vdb;
	mutex_destroy(&db->db_mtx);
	rw_destroy(&db->db_rwlock);
	cv_destroy(&db->db_changed);
	ASSERT(!multilist_link_active(&db->db_cache_link));
	zfs_refcount_destroy(&db->db_holds);
	}

	/*
	* dbuf hash table routines
	*/
	static dbuf_hash_table_t dbuf_hash_table;

	static uint64_t dbuf_hash_count;

	/*
	* We use Cityhash for this. It's fast, and has good hash properties without
	* requiring any large static buffers.
	*/
	static uint64_t
	dbuf_hash(void *os, uint64_t obj, uint8_t lvl, uint64_t blkid)
	{
	return (cityhash4((uintptr_t)os, obj, (uint64_t)lvl, blkid));
	}

	#define DTRACE_SET_STATE(db, why) \
	DTRACE_PROBE2(dbuf__state_change, dmu_buf_impl_t *, db, \
	const char *, why)

	#define DBUF_EQUAL(dbuf, os, obj, level, blkid) \
	((dbuf)->db.db_object == (obj) && \
	(dbuf)->db_objset == (os) && \
	(dbuf)->db_level == (level) && \
	(dbuf)->db_blkid == (blkid))

	dmu_buf_impl_t *
	dbuf_find(objset_t *os, uint64_t obj, uint8_t level, uint64_t blkid)
	{
	dbuf_hash_table_t *h = &dbuf_hash_table;
	uint64_t hv;
	uint64_t idx;
	dmu_buf_impl_t *db;

	hv = dbuf_hash(os, obj, level, blkid);
	idx = hv & h->hash_table_mask;

	mutex_enter(DBUF_HASH_MUTEX(h, idx));
	for (db = h->hash_table[idx]; db != NULL; db = db->db_hash_next) {
	if (DBUF_EQUAL(db, os, obj, level, blkid)) {
	mutex_enter(&db->db_mtx);
	if (db->db_state != DB_EVICTING) {
	mutex_exit(DBUF_HASH_MUTEX(h, idx));
	return (db);
	}
	mutex_exit(&db->db_mtx);
	}
	}
	mutex_exit(DBUF_HASH_MUTEX(h, idx));
	return (NULL);
	}

	static dmu_buf_impl_t *
	dbuf_find_bonus(objset_t *os, uint64_t object)
	{
	dnode_t *dn;
	dmu_buf_impl_t *db = NULL;

	if (dnode_hold(os, object, FTAG, &dn) == 0) {
	rw_enter(&dn->dn_struct_rwlock, RW_READER);
	if (dn->dn_bonus != NULL) {
	db = dn->dn_bonus;
	mutex_enter(&db->db_mtx);
	}
	rw_exit(&dn->dn_struct_rwlock);
	dnode_rele(dn, FTAG);
	}
	return (db);
	}

	/*
	* Insert an entry into the hash table. If there is already an element
	* equal to elem in the hash table, then the already existing element
	* will be returned and the new element will not be inserted.
	* Otherwise returns NULL.
	*/
	static dmu_buf_impl_t *
	dbuf_hash_insert(dmu_buf_impl_t *db)
	{
	dbuf_hash_table_t *h = &dbuf_hash_table;
	objset_t *os = db->db_objset;
	uint64_t obj = db->db.db_object;
	int level = db->db_level;
	uint64_t blkid, hv, idx;
	dmu_buf_impl_t *dbf;
	uint32_t i;

	blkid = db->db_blkid;
	hv = dbuf_hash(os, obj, level, blkid);
	idx = hv & h->hash_table_mask;

	mutex_enter(DBUF_HASH_MUTEX(h, idx));
	for (dbf = h->hash_table[idx], i = 0; dbf != NULL;
	dbf = dbf->db_hash_next, i++) {
	if (DBUF_EQUAL(dbf, os, obj, level, blkid)) {
	mutex_enter(&dbf->db_mtx);
	if (dbf->db_state != DB_EVICTING) {
	mutex_exit(DBUF_HASH_MUTEX(h, idx));
	return (dbf);
	}
	mutex_exit(&dbf->db_mtx);
	}
	}

	if (i > 0) {
	DBUF_STAT_BUMP(hash_collisions);
	if (i == 1)
	DBUF_STAT_BUMP(hash_chains);

	DBUF_STAT_MAX(hash_chain_max, i);
	}

	mutex_enter(&db->db_mtx);
	db->db_hash_next = h->hash_table[idx];
	h->hash_table[idx] = db;
	mutex_exit(DBUF_HASH_MUTEX(h, idx));
	atomic_inc_64(&dbuf_hash_count);
	DBUF_STAT_MAX(hash_elements_max, dbuf_hash_count);

	return (NULL);
	}

	/*
	* This returns whether this dbuf should be stored in the metadata cache, which
	* is based on whether it's from one of the dnode types that store data related
	* to traversing dataset hierarchies.
	*/
	static boolean_t
	dbuf_include_in_metadata_cache(dmu_buf_impl_t *db)
	{
	DB_DNODE_ENTER(db);
	dmu_object_type_t type = DB_DNODE(db)->dn_type;
	DB_DNODE_EXIT(db);

	/* Check if this dbuf is one of the types we care about */
	if (DMU_OT_IS_METADATA_CACHED(type)) {
	/* If we hit this, then we set something up wrong in dmu_ot */
	ASSERT(DMU_OT_IS_METADATA(type));

	/*
	* Sanity check for small-memory systems: don't allocate too
	* much memory for this purpose.
	*/
	if (zfs_refcount_count(
	&dbuf_caches[DB_DBUF_METADATA_CACHE].size) >
	dbuf_metadata_cache_target_bytes()) {
	DBUF_STAT_BUMP(metadata_cache_overflow);
	return (B_FALSE);
	}

	return (B_TRUE);
	}

	return (B_FALSE);
	}

	/*
	* Remove an entry from the hash table. It must be in the EVICTING state.
	*/
	static void
	dbuf_hash_remove(dmu_buf_impl_t *db)
	{
	dbuf_hash_table_t *h = &dbuf_hash_table;
	uint64_t hv, idx;
	dmu_buf_impl_t dbf, *dbp;

	hv = dbuf_hash(db->db_objset, db->db.db_object,
	db->db_level, db->db_blkid);
	idx = hv & h->hash_table_mask;

	/*
	* We mustn't hold db_mtx to maintain lock ordering:
	* DBUF_HASH_MUTEX > db_mtx.
	*/
	ASSERT(zfs_refcount_is_zero(&db->db_holds));
	ASSERT(db->db_state == DB_EVICTING);
	ASSERT(!MUTEX_HELD(&db->db_mtx));

	mutex_enter(DBUF_HASH_MUTEX(h, idx));
	dbp = &h->hash_table[idx];
	while ((dbf = *dbp) != db) {
	dbp = &dbf->db_hash_next;
	ASSERT(dbf != NULL);
	}
	*dbp = db->db_hash_next;
	db->db_hash_next = NULL;
	if (h->hash_table[idx] &&
	h->hash_table[idx]->db_hash_next == NULL)
	DBUF_STAT_BUMPDOWN(hash_chains);
	mutex_exit(DBUF_HASH_MUTEX(h, idx));
	atomic_dec_64(&dbuf_hash_count);
	}

	typedef enum {
	DBVU_EVICTING,
	DBVU_NOT_EVICTING
	} dbvu_verify_type_t;

	static void
	dbuf_verify_user(dmu_buf_impl_t *db, dbvu_verify_type_t verify_type)
	{
	#ifdef ZFS_DEBUG
	int64_t holds;

	if (db->db_user == NULL)
	return;

	/* Only data blocks support the attachment of user data. */
	ASSERT(db->db_level == 0);

	/* Clients must resolve a dbuf before attaching user data. */
	ASSERT(db->db.db_data != NULL);
	ASSERT3U(db->db_state, ==, DB_CACHED);

	holds = zfs_refcount_count(&db->db_holds);
	if (verify_type == DBVU_EVICTING) {
	/*
	* Immediate eviction occurs when holds == dirtycnt.
	* For normal eviction buffers, holds is zero on
	* eviction, except when dbuf_fix_old_data() calls
	* dbuf_clear_data(). However, the hold count can grow
	* during eviction even though db_mtx is held (see
	* dmu_bonus_hold() for an example), so we can only
	* test the generic invariant that holds >= dirtycnt.
	*/
	ASSERT3U(holds, >=, db->db_dirtycnt);
	} else {
	if (db->db_user_immediate_evict == TRUE)
	ASSERT3U(holds, >=, db->db_dirtycnt);
	else
	ASSERT3U(holds, >, 0);
	}
	#endif
	}

	static void
	dbuf_evict_user(dmu_buf_impl_t *db)
	{
	dmu_buf_user_t *dbu = db->db_user;

	ASSERT(MUTEX_HELD(&db->db_mtx));

	if (dbu == NULL)
	return;

	dbuf_verify_user(db, DBVU_EVICTING);
	db->db_user = NULL;

	#ifdef ZFS_DEBUG
	if (dbu->dbu_clear_on_evict_dbufp != NULL)
	*dbu->dbu_clear_on_evict_dbufp = NULL;
	#endif

	/*
	* There are two eviction callbacks - one that we call synchronously
	* and one that we invoke via a taskq. The async one is useful for
	* avoiding lock order reversals and limiting stack depth.
	*
	* Note that if we have a sync callback but no async callback,
	* it's likely that the sync callback will free the structure
	* containing the dbu. In that case we need to take care to not
	* dereference dbu after calling the sync evict func.
	*/
	boolean_t has_async = (dbu->dbu_evict_func_async != NULL);

	if (dbu->dbu_evict_func_sync != NULL)
	dbu->dbu_evict_func_sync(dbu);

	if (has_async) {
	taskq_dispatch_ent(dbu_evict_taskq, dbu->dbu_evict_func_async,
	dbu, 0, &dbu->dbu_tqent);
	}
	}

	boolean_t
	dbuf_is_metadata(dmu_buf_impl_t *db)
	{
	/*
	* Consider indirect blocks and spill blocks to be meta data.
	*/
	if (db->db_level > 0 \|\| db->db_blkid == DMU_SPILL_BLKID) {
	return (B_TRUE);
	} else {
	boolean_t is_metadata;

	DB_DNODE_ENTER(db);
	is_metadata = DMU_OT_IS_METADATA(DB_DNODE(db)->dn_type);
	DB_DNODE_EXIT(db);

	return (is_metadata);
	}
	}


	/*
	* This function must return indices evenly distributed between all
	* sublists of the multilist. This is needed due to how the dbuf eviction
	* code is laid out; dbuf_evict_thread() assumes dbufs are evenly
	* distributed between all sublists and uses this assumption when
	* deciding which sublist to evict from and how much to evict from it.
	*/
	static unsigned int
	dbuf_cache_multilist_index_func(multilist_t ml, void obj)
	{
	dmu_buf_impl_t *db = obj;

	/*
	* The assumption here, is the hash value for a given
	* dmu_buf_impl_t will remain constant throughout it's lifetime
	* (i.e. it's objset, object, level and blkid fields don't change).
	* Thus, we don't need to store the dbuf's sublist index
	* on insertion, as this index can be recalculated on removal.
	*
	* Also, the low order bits of the hash value are thought to be
	* distributed evenly. Otherwise, in the case that the multilist
	* has a power of two number of sublists, each sublists' usage
	* would not be evenly distributed.
	*/
	return (dbuf_hash(db->db_objset, db->db.db_object,
	db->db_level, db->db_blkid) %
	multilist_get_num_sublists(ml));
	}

	/*
	* The target size of the dbuf cache can grow with the ARC target,
	* unless limited by the tunable dbuf_cache_max_bytes.
	*/
	static inline unsigned long
	dbuf_cache_target_bytes(void)
	{
	return (MIN(dbuf_cache_max_bytes,
	arc_target_bytes() >> dbuf_cache_shift));
	}

	/*
	* The target size of the dbuf metadata cache can grow with the ARC target,
	* unless limited by the tunable dbuf_metadata_cache_max_bytes.
	*/
	static inline unsigned long
	dbuf_metadata_cache_target_bytes(void)
	{
	return (MIN(dbuf_metadata_cache_max_bytes,
	arc_target_bytes() >> dbuf_metadata_cache_shift));
	}

	static inline uint64_t
	dbuf_cache_hiwater_bytes(void)
	{
	uint64_t dbuf_cache_target = dbuf_cache_target_bytes();
	return (dbuf_cache_target +
	(dbuf_cache_target * dbuf_cache_hiwater_pct) / 100);
	}

	static inline uint64_t
	dbuf_cache_lowater_bytes(void)
	{
	uint64_t dbuf_cache_target = dbuf_cache_target_bytes();
	return (dbuf_cache_target -
	(dbuf_cache_target * dbuf_cache_lowater_pct) / 100);
	}

	static inline boolean_t
	dbuf_cache_above_lowater(void)
	{
	return (zfs_refcount_count(&dbuf_caches[DB_DBUF_CACHE].size) >
	dbuf_cache_lowater_bytes());
	}

	/*
	* Evict the oldest eligible dbuf from the dbuf cache.
	*/
	static void
	dbuf_evict_one(void)
	{
	- int idx = multilist_get_random_index(dbuf_caches[DB_DBUF_CACHE].cache);
	+ int idx = multilist_get_random_index(&dbuf_caches[DB_DBUF_CACHE].cache);
	multilist_sublist_t *mls = multilist_sublist_lock(
	- dbuf_caches[DB_DBUF_CACHE].cache, idx);
	+ &dbuf_caches[DB_DBUF_CACHE].cache, idx);

	ASSERT(!MUTEX_HELD(&dbuf_evict_lock));

	dmu_buf_impl_t *db = multilist_sublist_tail(mls);
	while (db != NULL && mutex_tryenter(&db->db_mtx) == 0) {
	db = multilist_sublist_prev(mls, db);
	}

	DTRACE_PROBE2(dbuf__evict__one, dmu_buf_impl_t *, db,
	multilist_sublist_t *, mls);

	if (db != NULL) {
	multilist_sublist_remove(mls, db);
	multilist_sublist_unlock(mls);
	(void) zfs_refcount_remove_many(
	&dbuf_caches[DB_DBUF_CACHE].size, db->db.db_size, db);
	DBUF_STAT_BUMPDOWN(cache_levels[db->db_level]);
	DBUF_STAT_BUMPDOWN(cache_count);
	DBUF_STAT_DECR(cache_levels_bytes[db->db_level],
	db->db.db_size);
	ASSERT3U(db->db_caching_status, ==, DB_DBUF_CACHE);
	db->db_caching_status = DB_NO_CACHE;
	dbuf_destroy(db);
	DBUF_STAT_BUMP(cache_total_evicts);
	} else {
	multilist_sublist_unlock(mls);
	}
	}

	/*
	* The dbuf evict thread is responsible for aging out dbufs from the
	* cache. Once the cache has reached it's maximum size, dbufs are removed
	* and destroyed. The eviction thread will continue running until the size
	* of the dbuf cache is at or below the maximum size. Once the dbuf is aged
	* out of the cache it is destroyed and becomes eligible for arc eviction.
	*/
	/* ARGSUSED */
	static void
	dbuf_evict_thread(void *unused)
	{
	callb_cpr_t cpr;

	CALLB_CPR_INIT(&cpr, &dbuf_evict_lock, callb_generic_cpr, FTAG);

	mutex_enter(&dbuf_evict_lock);
	while (!dbuf_evict_thread_exit) {
	while (!dbuf_cache_above_lowater() && !dbuf_evict_thread_exit) {
	CALLB_CPR_SAFE_BEGIN(&cpr);
	(void) cv_timedwait_idle_hires(&dbuf_evict_cv,
	&dbuf_evict_lock, SEC2NSEC(1), MSEC2NSEC(1), 0);
	CALLB_CPR_SAFE_END(&cpr, &dbuf_evict_lock);
	}
	mutex_exit(&dbuf_evict_lock);

	/*
	* Keep evicting as long as we're above the low water mark
	* for the cache. We do this without holding the locks to
	* minimize lock contention.
	*/
	while (dbuf_cache_above_lowater() && !dbuf_evict_thread_exit) {
	dbuf_evict_one();
	}

	mutex_enter(&dbuf_evict_lock);
	}

	dbuf_evict_thread_exit = B_FALSE;
	cv_broadcast(&dbuf_evict_cv);
	CALLB_CPR_EXIT(&cpr); /* drops dbuf_evict_lock */
	thread_exit();
	}

	/*
	* Wake up the dbuf eviction thread if the dbuf cache is at its max size.
	* If the dbuf cache is at its high water mark, then evict a dbuf from the
	* dbuf cache using the callers context.
	*/
	static void
	dbuf_evict_notify(uint64_t size)
	{
	/*
	* We check if we should evict without holding the dbuf_evict_lock,
	* because it's OK to occasionally make the wrong decision here,
	* and grabbing the lock results in massive lock contention.
	*/
	if (size > dbuf_cache_target_bytes()) {
	if (size > dbuf_cache_hiwater_bytes())
	dbuf_evict_one();
	cv_signal(&dbuf_evict_cv);
	}
	}

	static int
	dbuf_kstat_update(kstat_t *ksp, int rw)
	{
	dbuf_stats_t *ds = ksp->ks_data;

	if (rw == KSTAT_WRITE) {
	return (SET_ERROR(EACCES));
	} else {
	ds->metadata_cache_size_bytes.value.ui64 = zfs_refcount_count(
	&dbuf_caches[DB_DBUF_METADATA_CACHE].size);
	ds->cache_size_bytes.value.ui64 =
	zfs_refcount_count(&dbuf_caches[DB_DBUF_CACHE].size);
	ds->cache_target_bytes.value.ui64 = dbuf_cache_target_bytes();
	ds->cache_hiwater_bytes.value.ui64 = dbuf_cache_hiwater_bytes();
	ds->cache_lowater_bytes.value.ui64 = dbuf_cache_lowater_bytes();
	ds->hash_elements.value.ui64 = dbuf_hash_count;
	}

	return (0);
	}

	void
	dbuf_init(void)
	{
	uint64_t hsize = 1ULL << 16;
	dbuf_hash_table_t *h = &dbuf_hash_table;
	int i;

	/*
	* The hash table is big enough to fill all of physical memory
	* with an average block size of zfs_arc_average_blocksize (default 8K).
	* By default, the table will take up
	* totalmem * sizeof(void*) / 8K (1MB per GB with 8-byte pointers).
	*/
	while (hsize * zfs_arc_average_blocksize < physmem * PAGESIZE)
	hsize <<= 1;

	retry:
	h->hash_table_mask = hsize - 1;
	#if defined(_KERNEL)
	/*
	* Large allocations which do not require contiguous pages
	* should be using vmem_alloc() in the linux kernel
	*/
	h->hash_table = vmem_zalloc(hsize * sizeof (void *), KM_SLEEP);
	#else
	h->hash_table = kmem_zalloc(hsize * sizeof (void *), KM_NOSLEEP);
	#endif
	if (h->hash_table == NULL) {
	/* XXX - we should really return an error instead of assert */
	ASSERT(hsize > (1ULL << 10));
	hsize >>= 1;
	goto retry;
	}

	dbuf_kmem_cache = kmem_cache_create("dmu_buf_impl_t",
	sizeof (dmu_buf_impl_t),
	0, dbuf_cons, dbuf_dest, NULL, NULL, NULL, 0);

	for (i = 0; i < DBUF_MUTEXES; i++)
	mutex_init(&h->hash_mutexes[i], NULL, MUTEX_DEFAULT, NULL);

	dbuf_stats_init(h);

	/*
	* All entries are queued via taskq_dispatch_ent(), so min/maxalloc
	* configuration is not required.
	*/
	dbu_evict_taskq = taskq_create("dbu_evict", 1, defclsyspri, 0, 0, 0);

	for (dbuf_cached_state_t dcs = 0; dcs < DB_CACHE_MAX; dcs++) {
	- dbuf_caches[dcs].cache =
	- multilist_create(sizeof (dmu_buf_impl_t),
	+ multilist_create(&dbuf_caches[dcs].cache,
	+ sizeof (dmu_buf_impl_t),
	offsetof(dmu_buf_impl_t, db_cache_link),
	dbuf_cache_multilist_index_func);
	zfs_refcount_create(&dbuf_caches[dcs].size);
	}

	dbuf_evict_thread_exit = B_FALSE;
	mutex_init(&dbuf_evict_lock, NULL, MUTEX_DEFAULT, NULL);
	cv_init(&dbuf_evict_cv, NULL, CV_DEFAULT, NULL);
	dbuf_cache_evict_thread = thread_create(NULL, 0, dbuf_evict_thread,
	NULL, 0, &p0, TS_RUN, minclsyspri);

	dbuf_ksp = kstat_create("zfs", 0, "dbufstats", "misc",
	KSTAT_TYPE_NAMED, sizeof (dbuf_stats) / sizeof (kstat_named_t),
	KSTAT_FLAG_VIRTUAL);
	if (dbuf_ksp != NULL) {
	for (i = 0; i < DN_MAX_LEVELS; i++) {
	snprintf(dbuf_stats.cache_levels[i].name,
	KSTAT_STRLEN, "cache_level_%d", i);
	dbuf_stats.cache_levels[i].data_type =
	KSTAT_DATA_UINT64;
	snprintf(dbuf_stats.cache_levels_bytes[i].name,
	KSTAT_STRLEN, "cache_level_%d_bytes", i);
	dbuf_stats.cache_levels_bytes[i].data_type =
	KSTAT_DATA_UINT64;
	}
	dbuf_ksp->ks_data = &dbuf_stats;
	dbuf_ksp->ks_update = dbuf_kstat_update;
	kstat_install(dbuf_ksp);
	}
	}

	void
	dbuf_fini(void)
	{
	dbuf_hash_table_t *h = &dbuf_hash_table;
	int i;

	dbuf_stats_destroy();

	for (i = 0; i < DBUF_MUTEXES; i++)
	mutex_destroy(&h->hash_mutexes[i]);
	#if defined(_KERNEL)
	/*
	* Large allocations which do not require contiguous pages
	* should be using vmem_free() in the linux kernel
	*/
	vmem_free(h->hash_table, (h->hash_table_mask + 1) * sizeof (void *));
	#else
	kmem_free(h->hash_table, (h->hash_table_mask + 1) * sizeof (void *));
	#endif
	kmem_cache_destroy(dbuf_kmem_cache);
	taskq_destroy(dbu_evict_taskq);

	mutex_enter(&dbuf_evict_lock);
	dbuf_evict_thread_exit = B_TRUE;
	while (dbuf_evict_thread_exit) {
	cv_signal(&dbuf_evict_cv);
	cv_wait(&dbuf_evict_cv, &dbuf_evict_lock);
	}
	mutex_exit(&dbuf_evict_lock);

	mutex_destroy(&dbuf_evict_lock);
	cv_destroy(&dbuf_evict_cv);

	for (dbuf_cached_state_t dcs = 0; dcs < DB_CACHE_MAX; dcs++) {
	zfs_refcount_destroy(&dbuf_caches[dcs].size);
	- multilist_destroy(dbuf_caches[dcs].cache);
	+ multilist_destroy(&dbuf_caches[dcs].cache);
	}

	if (dbuf_ksp != NULL) {
	kstat_delete(dbuf_ksp);
	dbuf_ksp = NULL;
	}
	}

	/*
	* Other stuff.
	*/

	#ifdef ZFS_DEBUG
	static void
	dbuf_verify(dmu_buf_impl_t *db)
	{
	dnode_t *dn;
	dbuf_dirty_record_t *dr;
	uint32_t txg_prev;

	ASSERT(MUTEX_HELD(&db->db_mtx));

	if (!(zfs_flags & ZFS_DEBUG_DBUF_VERIFY))
	return;

	ASSERT(db->db_objset != NULL);
	DB_DNODE_ENTER(db);
	dn = DB_DNODE(db);
	if (dn == NULL) {
	ASSERT(db->db_parent == NULL);
	ASSERT(db->db_blkptr == NULL);
	} else {
	ASSERT3U(db->db.db_object, ==, dn->dn_object);
	ASSERT3P(db->db_objset, ==, dn->dn_objset);
	ASSERT3U(db->db_level, <, dn->dn_nlevels);
	ASSERT(db->db_blkid == DMU_BONUS_BLKID \|\|
	db->db_blkid == DMU_SPILL_BLKID \|\|
	!avl_is_empty(&dn->dn_dbufs));
	}
	if (db->db_blkid == DMU_BONUS_BLKID) {
	ASSERT(dn != NULL);
	ASSERT3U(db->db.db_size, >=, dn->dn_bonuslen);
	ASSERT3U(db->db.db_offset, ==, DMU_BONUS_BLKID);
	} else if (db->db_blkid == DMU_SPILL_BLKID) {
	ASSERT(dn != NULL);
	ASSERT0(db->db.db_offset);
	} else {
	ASSERT3U(db->db.db_offset, ==, db->db_blkid * db->db.db_size);
	}

	if ((dr = list_head(&db->db_dirty_records)) != NULL) {
	ASSERT(dr->dr_dbuf == db);
	txg_prev = dr->dr_txg;
	for (dr = list_next(&db->db_dirty_records, dr); dr != NULL;
	dr = list_next(&db->db_dirty_records, dr)) {
	ASSERT(dr->dr_dbuf == db);
	ASSERT(txg_prev > dr->dr_txg);
	txg_prev = dr->dr_txg;
	}
	}

	/*
	* We can't assert that db_size matches dn_datablksz because it
	* can be momentarily different when another thread is doing
	* dnode_set_blksz().
	*/
	if (db->db_level == 0 && db->db.db_object == DMU_META_DNODE_OBJECT) {
	dr = db->db_data_pending;
	/*
	* It should only be modified in syncing context, so
	* make sure we only have one copy of the data.
	*/
	ASSERT(dr == NULL \|\| dr->dt.dl.dr_data == db->db_buf);
	}

	/* verify db->db_blkptr */
	if (db->db_blkptr) {
	if (db->db_parent == dn->dn_dbuf) {
	/* db is pointed to by the dnode */
	/* ASSERT3U(db->db_blkid, <, dn->dn_nblkptr); */
	if (DMU_OBJECT_IS_SPECIAL(db->db.db_object))
	ASSERT(db->db_parent == NULL);
	else
	ASSERT(db->db_parent != NULL);
	if (db->db_blkid != DMU_SPILL_BLKID)
	ASSERT3P(db->db_blkptr, ==,
	&dn->dn_phys->dn_blkptr[db->db_blkid]);
	} else {
	/* db is pointed to by an indirect block */
	int epb __maybe_unused = db->db_parent->db.db_size >>
	SPA_BLKPTRSHIFT;
	ASSERT3U(db->db_parent->db_level, ==, db->db_level+1);
	ASSERT3U(db->db_parent->db.db_object, ==,
	db->db.db_object);
	/*
	* dnode_grow_indblksz() can make this fail if we don't
	* have the parent's rwlock. XXX indblksz no longer
	* grows. safe to do this now?
	*/
	if (RW_LOCK_HELD(&db->db_parent->db_rwlock)) {
	ASSERT3P(db->db_blkptr, ==,
	((blkptr_t *)db->db_parent->db.db_data +
	db->db_blkid % epb));
	}
	}
	}
	if ((db->db_blkptr == NULL \|\| BP_IS_HOLE(db->db_blkptr)) &&
	(db->db_buf == NULL \|\| db->db_buf->b_data) &&
	db->db.db_data && db->db_blkid != DMU_BONUS_BLKID &&
	db->db_state != DB_FILL && !dn->dn_free_txg) {
	/*
	* If the blkptr isn't set but they have nonzero data,
	* it had better be dirty, otherwise we'll lose that
	* data when we evict this buffer.
	*
	* There is an exception to this rule for indirect blocks; in
	* this case, if the indirect block is a hole, we fill in a few
	* fields on each of the child blocks (importantly, birth time)
	* to prevent hole birth times from being lost when you
	* partially fill in a hole.
	*/
	if (db->db_dirtycnt == 0) {
	if (db->db_level == 0) {
	uint64_t *buf = db->db.db_data;
	int i;

	for (i = 0; i < db->db.db_size >> 3; i++) {
	ASSERT(buf[i] == 0);
	}
	} else {
	blkptr_t *bps = db->db.db_data;
	ASSERT3U(1 << DB_DNODE(db)->dn_indblkshift, ==,
	db->db.db_size);
	/*
	* We want to verify that all the blkptrs in the
	* indirect block are holes, but we may have
	* automatically set up a few fields for them.
	* We iterate through each blkptr and verify
	* they only have those fields set.
	*/
	for (int i = 0;
	i < db->db.db_size / sizeof (blkptr_t);
	i++) {
	blkptr_t *bp = &bps[i];
	ASSERT(ZIO_CHECKSUM_IS_ZERO(
	&bp->blk_cksum));
	ASSERT(
	DVA_IS_EMPTY(&bp->blk_dva[0]) &&
	DVA_IS_EMPTY(&bp->blk_dva[1]) &&
	DVA_IS_EMPTY(&bp->blk_dva[2]));
	ASSERT0(bp->blk_fill);
	ASSERT0(bp->blk_pad[0]);
	ASSERT0(bp->blk_pad[1]);
	ASSERT(!BP_IS_EMBEDDED(bp));
	ASSERT(BP_IS_HOLE(bp));
	ASSERT0(bp->blk_phys_birth);
	}
	}
	}
	}
	DB_DNODE_EXIT(db);
	}
	#endif

	static void
	dbuf_clear_data(dmu_buf_impl_t *db)
	{
	ASSERT(MUTEX_HELD(&db->db_mtx));
	dbuf_evict_user(db);
	ASSERT3P(db->db_buf, ==, NULL);
	db->db.db_data = NULL;
	if (db->db_state != DB_NOFILL) {
	db->db_state = DB_UNCACHED;
	DTRACE_SET_STATE(db, "clear data");
	}
	}

	static void
	dbuf_set_data(dmu_buf_impl_t db, arc_buf_t buf)
	{
	ASSERT(MUTEX_HELD(&db->db_mtx));
	ASSERT(buf != NULL);

	db->db_buf = buf;
	ASSERT(buf->b_data != NULL);
	db->db.db_data = buf->b_data;
	}

	static arc_buf_t *
	dbuf_alloc_arcbuf_from_arcbuf(dmu_buf_impl_t db, arc_buf_t data)
	{
	objset_t *os = db->db_objset;
	spa_t *spa = os->os_spa;
	arc_buf_contents_t type = DBUF_GET_BUFC_TYPE(db);
	enum zio_compress compress_type;
	uint8_t complevel;
	int psize, lsize;

	psize = arc_buf_size(data);
	lsize = arc_buf_lsize(data);
	compress_type = arc_get_compression(data);
	complevel = arc_get_complevel(data);

	if (arc_is_encrypted(data)) {
	boolean_t byteorder;
	uint8_t salt[ZIO_DATA_SALT_LEN];
	uint8_t iv[ZIO_DATA_IV_LEN];
	uint8_t mac[ZIO_DATA_MAC_LEN];
	dnode_t *dn = DB_DNODE(db);

	arc_get_raw_params(data, &byteorder, salt, iv, mac);
	data = arc_alloc_raw_buf(spa, db, dmu_objset_id(os),
	byteorder, salt, iv, mac, dn->dn_type, psize, lsize,
	compress_type, complevel);
	} else if (compress_type != ZIO_COMPRESS_OFF) {
	ASSERT3U(type, ==, ARC_BUFC_DATA);
	data = arc_alloc_compressed_buf(spa, db,
	psize, lsize, compress_type, complevel);
	} else {
	data = arc_alloc_buf(spa, db, type, psize);
	}
	return (data);
	}

	static arc_buf_t *
	dbuf_alloc_arcbuf(dmu_buf_impl_t *db)
	{
	spa_t *spa = db->db_objset->os_spa;

	return (arc_alloc_buf(spa, db, DBUF_GET_BUFC_TYPE(db), db->db.db_size));
	}

	/*
	* Loan out an arc_buf for read. Return the loaned arc_buf.
	*/
	arc_buf_t *
	dbuf_loan_arcbuf(dmu_buf_impl_t *db)
	{
	arc_buf_t *abuf;

	ASSERT(db->db_blkid != DMU_BONUS_BLKID);
	mutex_enter(&db->db_mtx);
	if (arc_released(db->db_buf) \|\| zfs_refcount_count(&db->db_holds) > 1) {
	int blksz = db->db.db_size;
	spa_t *spa = db->db_objset->os_spa;

	mutex_exit(&db->db_mtx);
	abuf = arc_loan_buf(spa, B_FALSE, blksz);
	bcopy(db->db.db_data, abuf->b_data, blksz);
	} else {
	abuf = db->db_buf;
	arc_loan_inuse_buf(abuf, db);
	db->db_buf = NULL;
	dbuf_clear_data(db);
	mutex_exit(&db->db_mtx);
	}
	return (abuf);
	}

	/*
	* Calculate which level n block references the data at the level 0 offset
	* provided.
	*/
	uint64_t
	dbuf_whichblock(const dnode_t *dn, const int64_t level, const uint64_t offset)
	{
	if (dn->dn_datablkshift != 0 && dn->dn_indblkshift != 0) {
	/*
	* The level n blkid is equal to the level 0 blkid divided by
	* the number of level 0s in a level n block.
	*
	* The level 0 blkid is offset >> datablkshift =
	* offset / 2^datablkshift.
	*
	* The number of level 0s in a level n is the number of block
	* pointers in an indirect block, raised to the power of level.
	* This is 2^(indblkshift - SPA_BLKPTRSHIFT)^level =
	* 2^(level*(indblkshift - SPA_BLKPTRSHIFT)).
	*
	* Thus, the level n blkid is: offset /
	* ((2^datablkshift)(2^(level(indblkshift-SPA_BLKPTRSHIFT))))
	* = offset / 2^(datablkshift + level *
	* (indblkshift - SPA_BLKPTRSHIFT))
	* = offset >> (datablkshift + level *
	* (indblkshift - SPA_BLKPTRSHIFT))
	*/

	const unsigned exp = dn->dn_datablkshift +
	level * (dn->dn_indblkshift - SPA_BLKPTRSHIFT);

	if (exp >= 8 * sizeof (offset)) {
	/* This only happens on the highest indirection level */
	ASSERT3U(level, ==, dn->dn_nlevels - 1);
	return (0);
	}

	ASSERT3U(exp, <, 8 * sizeof (offset));

	return (offset >> exp);
	} else {
	ASSERT3U(offset, <, dn->dn_datablksz);
	return (0);
	}
	}

	/*
	* This function is used to lock the parent of the provided dbuf. This should be
	* used when modifying or reading db_blkptr.
	*/
	db_lock_type_t
	dmu_buf_lock_parent(dmu_buf_impl_t db, krw_t rw, void tag)
	{
	enum db_lock_type ret = DLT_NONE;
	if (db->db_parent != NULL) {
	rw_enter(&db->db_parent->db_rwlock, rw);
	ret = DLT_PARENT;
	} else if (dmu_objset_ds(db->db_objset) != NULL) {
	rrw_enter(&dmu_objset_ds(db->db_objset)->ds_bp_rwlock, rw,
	tag);
	ret = DLT_OBJSET;
	}
	/*
	* We only return a DLT_NONE lock when it's the top-most indirect block
	* of the meta-dnode of the MOS.
	*/
	return (ret);
	}

	/*
	* We need to pass the lock type in because it's possible that the block will
	* move from being the topmost indirect block in a dnode (and thus, have no
	* parent) to not the top-most via an indirection increase. This would cause a
	* panic if we didn't pass the lock type in.
	*/
	void
	dmu_buf_unlock_parent(dmu_buf_impl_t db, db_lock_type_t type, void tag)
	{
	if (type == DLT_PARENT)
	rw_exit(&db->db_parent->db_rwlock);
	else if (type == DLT_OBJSET)
	rrw_exit(&dmu_objset_ds(db->db_objset)->ds_bp_rwlock, tag);
	}

	static void
	dbuf_read_done(zio_t zio, const zbookmark_phys_t zb, const blkptr_t *bp,
	arc_buf_t buf, void vdb)
	{
	dmu_buf_impl_t *db = vdb;

	mutex_enter(&db->db_mtx);
	ASSERT3U(db->db_state, ==, DB_READ);
	/*
	* All reads are synchronous, so we must have a hold on the dbuf
	*/
	ASSERT(zfs_refcount_count(&db->db_holds) > 0);
	ASSERT(db->db_buf == NULL);
	ASSERT(db->db.db_data == NULL);
	if (buf == NULL) {
	/* i/o error */
	ASSERT(zio == NULL \|\| zio->io_error != 0);
	ASSERT(db->db_blkid != DMU_BONUS_BLKID);
	ASSERT3P(db->db_buf, ==, NULL);
	db->db_state = DB_UNCACHED;
	DTRACE_SET_STATE(db, "i/o error");
	} else if (db->db_level == 0 && db->db_freed_in_flight) {
	/* freed in flight */
	ASSERT(zio == NULL \|\| zio->io_error == 0);
	arc_release(buf, db);
	bzero(buf->b_data, db->db.db_size);
	arc_buf_freeze(buf);
	db->db_freed_in_flight = FALSE;
	dbuf_set_data(db, buf);
	db->db_state = DB_CACHED;
	DTRACE_SET_STATE(db, "freed in flight");
	} else {
	/* success */
	ASSERT(zio == NULL \|\| zio->io_error == 0);
	dbuf_set_data(db, buf);
	db->db_state = DB_CACHED;
	DTRACE_SET_STATE(db, "successful read");
	}
	cv_broadcast(&db->db_changed);
	dbuf_rele_and_unlock(db, NULL, B_FALSE);
	}

	/*
	* Shortcut for performing reads on bonus dbufs. Returns
	* an error if we fail to verify the dnode associated with
	* a decrypted block. Otherwise success.
	*/
	static int
	dbuf_read_bonus(dmu_buf_impl_t db, dnode_t dn, uint32_t flags)
	{
	int bonuslen, max_bonuslen, err;

	err = dbuf_read_verify_dnode_crypt(db, flags);
	if (err)
	return (err);

	bonuslen = MIN(dn->dn_bonuslen, dn->dn_phys->dn_bonuslen);
	max_bonuslen = DN_SLOTS_TO_BONUSLEN(dn->dn_num_slots);
	ASSERT(MUTEX_HELD(&db->db_mtx));
	ASSERT(DB_DNODE_HELD(db));
	ASSERT3U(bonuslen, <=, db->db.db_size);
	db->db.db_data = kmem_alloc(max_bonuslen, KM_SLEEP);
	arc_space_consume(max_bonuslen, ARC_SPACE_BONUS);
	if (bonuslen < max_bonuslen)
	bzero(db->db.db_data, max_bonuslen);
	if (bonuslen)
	bcopy(DN_BONUS(dn->dn_phys), db->db.db_data, bonuslen);
	db->db_state = DB_CACHED;
	DTRACE_SET_STATE(db, "bonus buffer filled");
	return (0);
	}

	static void
	dbuf_handle_indirect_hole(dmu_buf_impl_t db, dnode_t dn)
	{
	blkptr_t *bps = db->db.db_data;
	uint32_t indbs = 1ULL << dn->dn_indblkshift;
	int n_bps = indbs >> SPA_BLKPTRSHIFT;

	for (int i = 0; i < n_bps; i++) {
	blkptr_t *bp = &bps[i];

	ASSERT3U(BP_GET_LSIZE(db->db_blkptr), ==, indbs);
	BP_SET_LSIZE(bp, BP_GET_LEVEL(db->db_blkptr) == 1 ?
	dn->dn_datablksz : BP_GET_LSIZE(db->db_blkptr));
	BP_SET_TYPE(bp, BP_GET_TYPE(db->db_blkptr));
	BP_SET_LEVEL(bp, BP_GET_LEVEL(db->db_blkptr) - 1);
	BP_SET_BIRTH(bp, db->db_blkptr->blk_birth, 0);
	}
	}

	/*
	* Handle reads on dbufs that are holes, if necessary. This function
	* requires that the dbuf's mutex is held. Returns success (0) if action
	* was taken, ENOENT if no action was taken.
	*/
	static int
	dbuf_read_hole(dmu_buf_impl_t db, dnode_t dn, uint32_t flags)
	{
	ASSERT(MUTEX_HELD(&db->db_mtx));

	int is_hole = db->db_blkptr == NULL \|\| BP_IS_HOLE(db->db_blkptr);
	/*
	* For level 0 blocks only, if the above check fails:
	* Recheck BP_IS_HOLE() after dnode_block_freed() in case dnode_sync()
	* processes the delete record and clears the bp while we are waiting
	* for the dn_mtx (resulting in a "no" from block_freed).
	*/
	if (!is_hole && db->db_level == 0) {
	is_hole = dnode_block_freed(dn, db->db_blkid) \|\|
	BP_IS_HOLE(db->db_blkptr);
	}

	if (is_hole) {
	dbuf_set_data(db, dbuf_alloc_arcbuf(db));
	bzero(db->db.db_data, db->db.db_size);

	if (db->db_blkptr != NULL && db->db_level > 0 &&
	BP_IS_HOLE(db->db_blkptr) &&
	db->db_blkptr->blk_birth != 0) {
	dbuf_handle_indirect_hole(db, dn);
	}
	db->db_state = DB_CACHED;
	DTRACE_SET_STATE(db, "hole read satisfied");
	return (0);
	}
	return (ENOENT);
	}

	/*
	* This function ensures that, when doing a decrypting read of a block,
	* we make sure we have decrypted the dnode associated with it. We must do
	* this so that we ensure we are fully authenticating the checksum-of-MACs
	* tree from the root of the objset down to this block. Indirect blocks are
	* always verified against their secure checksum-of-MACs assuming that the
	* dnode containing them is correct. Now that we are doing a decrypting read,
	* we can be sure that the key is loaded and verify that assumption. This is
	* especially important considering that we always read encrypted dnode
	* blocks as raw data (without verifying their MACs) to start, and
	* decrypt / authenticate them when we need to read an encrypted bonus buffer.
	*/
	static int
	dbuf_read_verify_dnode_crypt(dmu_buf_impl_t *db, uint32_t flags)
	{
	int err = 0;
	objset_t *os = db->db_objset;
	arc_buf_t *dnode_abuf;
	dnode_t *dn;
	zbookmark_phys_t zb;

	ASSERT(MUTEX_HELD(&db->db_mtx));

	if (!os->os_encrypted \|\| os->os_raw_receive \|\|
	(flags & DB_RF_NO_DECRYPT) != 0)
	return (0);

	DB_DNODE_ENTER(db);
	dn = DB_DNODE(db);
	dnode_abuf = (dn->dn_dbuf != NULL) ? dn->dn_dbuf->db_buf : NULL;

	if (dnode_abuf == NULL \|\| !arc_is_encrypted(dnode_abuf)) {
	DB_DNODE_EXIT(db);
	return (0);
	}

	SET_BOOKMARK(&zb, dmu_objset_id(os),
	DMU_META_DNODE_OBJECT, 0, dn->dn_dbuf->db_blkid);
	err = arc_untransform(dnode_abuf, os->os_spa, &zb, B_TRUE);

	/*
	* An error code of EACCES tells us that the key is still not
	* available. This is ok if we are only reading authenticated
	* (and therefore non-encrypted) blocks.
	*/
	if (err == EACCES && ((db->db_blkid != DMU_BONUS_BLKID &&
	!DMU_OT_IS_ENCRYPTED(dn->dn_type)) \|\|
	(db->db_blkid == DMU_BONUS_BLKID &&
	!DMU_OT_IS_ENCRYPTED(dn->dn_bonustype))))
	err = 0;

	DB_DNODE_EXIT(db);

	return (err);
	}

	/*
	* Drops db_mtx and the parent lock specified by dblt and tag before
	* returning.
	*/
	static int
	dbuf_read_impl(dmu_buf_impl_t db, zio_t zio, uint32_t flags,
	db_lock_type_t dblt, void *tag)
	{
	dnode_t *dn;
	zbookmark_phys_t zb;
	uint32_t aflags = ARC_FLAG_NOWAIT;
	int err, zio_flags;

	err = zio_flags = 0;
	DB_DNODE_ENTER(db);
	dn = DB_DNODE(db);
	ASSERT(!zfs_refcount_is_zero(&db->db_holds));
	ASSERT(MUTEX_HELD(&db->db_mtx));
	ASSERT(db->db_state == DB_UNCACHED);
	ASSERT(db->db_buf == NULL);
	ASSERT(db->db_parent == NULL \|\|
	RW_LOCK_HELD(&db->db_parent->db_rwlock));

	if (db->db_blkid == DMU_BONUS_BLKID) {
	err = dbuf_read_bonus(db, dn, flags);
	goto early_unlock;
	}

	err = dbuf_read_hole(db, dn, flags);
	if (err == 0)
	goto early_unlock;

	/*
	* Any attempt to read a redacted block should result in an error. This
	* will never happen under normal conditions, but can be useful for
	* debugging purposes.
	*/
	if (BP_IS_REDACTED(db->db_blkptr)) {
	ASSERT(dsl_dataset_feature_is_active(
	db->db_objset->os_dsl_dataset,
	SPA_FEATURE_REDACTED_DATASETS));
	err = SET_ERROR(EIO);
	goto early_unlock;
	}

	SET_BOOKMARK(&zb, dmu_objset_id(db->db_objset),
	db->db.db_object, db->db_level, db->db_blkid);

	/*
	* All bps of an encrypted os should have the encryption bit set.
	* If this is not true it indicates tampering and we report an error.
	*/
	if (db->db_objset->os_encrypted && !BP_USES_CRYPT(db->db_blkptr)) {
	spa_log_error(db->db_objset->os_spa, &zb);
	zfs_panic_recover("unencrypted block in encrypted "
	"object set %llu", dmu_objset_id(db->db_objset));
	err = SET_ERROR(EIO);
	goto early_unlock;
	}

	err = dbuf_read_verify_dnode_crypt(db, flags);
	if (err != 0)
	goto early_unlock;

	DB_DNODE_EXIT(db);

	db->db_state = DB_READ;
	DTRACE_SET_STATE(db, "read issued");
	mutex_exit(&db->db_mtx);

	if (DBUF_IS_L2CACHEABLE(db))
	aflags \|= ARC_FLAG_L2CACHE;

	dbuf_add_ref(db, NULL);

	zio_flags = (flags & DB_RF_CANFAIL) ?
	ZIO_FLAG_CANFAIL : ZIO_FLAG_MUSTSUCCEED;

	if ((flags & DB_RF_NO_DECRYPT) && BP_IS_PROTECTED(db->db_blkptr))
	zio_flags \|= ZIO_FLAG_RAW;
	/*
	* The zio layer will copy the provided blkptr later, but we need to
	* do this now so that we can release the parent's rwlock. We have to
	* do that now so that if dbuf_read_done is called synchronously (on
	* an l1 cache hit) we don't acquire the db_mtx while holding the
	* parent's rwlock, which would be a lock ordering violation.
	*/
	blkptr_t bp = *db->db_blkptr;
	dmu_buf_unlock_parent(db, dblt, tag);
	(void) arc_read(zio, db->db_objset->os_spa, &bp,
	dbuf_read_done, db, ZIO_PRIORITY_SYNC_READ, zio_flags,
	&aflags, &zb);
	return (err);
	early_unlock:
	DB_DNODE_EXIT(db);
	mutex_exit(&db->db_mtx);
	dmu_buf_unlock_parent(db, dblt, tag);
	return (err);
	}

	/*
	* This is our just-in-time copy function. It makes a copy of buffers that
	* have been modified in a previous transaction group before we access them in
	* the current active group.
	*
	* This function is used in three places: when we are dirtying a buffer for the
	* first time in a txg, when we are freeing a range in a dnode that includes
	* this buffer, and when we are accessing a buffer which was received compressed
	* and later referenced in a WRITE_BYREF record.
	*
	* Note that when we are called from dbuf_free_range() we do not put a hold on
	* the buffer, we just traverse the active dbuf list for the dnode.
	*/
	static void
	dbuf_fix_old_data(dmu_buf_impl_t *db, uint64_t txg)
	{
	dbuf_dirty_record_t *dr = list_head(&db->db_dirty_records);

	ASSERT(MUTEX_HELD(&db->db_mtx));
	ASSERT(db->db.db_data != NULL);
	ASSERT(db->db_level == 0);
	ASSERT(db->db.db_object != DMU_META_DNODE_OBJECT);

	if (dr == NULL \|\|
	(dr->dt.dl.dr_data !=
	((db->db_blkid == DMU_BONUS_BLKID) ? db->db.db_data : db->db_buf)))
	return;

	/*
	* If the last dirty record for this dbuf has not yet synced
	* and its referencing the dbuf data, either:
	* reset the reference to point to a new copy,
	* or (if there a no active holders)
	* just null out the current db_data pointer.
	*/
	ASSERT3U(dr->dr_txg, >=, txg - 2);
	if (db->db_blkid == DMU_BONUS_BLKID) {
	dnode_t *dn = DB_DNODE(db);
	int bonuslen = DN_SLOTS_TO_BONUSLEN(dn->dn_num_slots);
	dr->dt.dl.dr_data = kmem_alloc(bonuslen, KM_SLEEP);
	arc_space_consume(bonuslen, ARC_SPACE_BONUS);
	bcopy(db->db.db_data, dr->dt.dl.dr_data, bonuslen);
	} else if (zfs_refcount_count(&db->db_holds) > db->db_dirtycnt) {
	arc_buf_t *buf = dbuf_alloc_arcbuf_from_arcbuf(db, db->db_buf);
	dr->dt.dl.dr_data = buf;
	bcopy(db->db.db_data, buf->b_data, arc_buf_size(buf));
	} else {
	db->db_buf = NULL;
	dbuf_clear_data(db);
	}
	}

	int
	dbuf_read(dmu_buf_impl_t db, zio_t zio, uint32_t flags)
	{
	int err = 0;
	boolean_t prefetch;
	dnode_t *dn;

	/*
	* We don't have to hold the mutex to check db_state because it
	* can't be freed while we have a hold on the buffer.
	*/
	ASSERT(!zfs_refcount_is_zero(&db->db_holds));

	if (db->db_state == DB_NOFILL)
	return (SET_ERROR(EIO));

	DB_DNODE_ENTER(db);
	dn = DB_DNODE(db);

	prefetch = db->db_level == 0 && db->db_blkid != DMU_BONUS_BLKID &&
	(flags & DB_RF_NOPREFETCH) == 0 && dn != NULL &&
	DBUF_IS_CACHEABLE(db);

	mutex_enter(&db->db_mtx);
	if (db->db_state == DB_CACHED) {
	spa_t *spa = dn->dn_objset->os_spa;

	/*
	* Ensure that this block's dnode has been decrypted if
	* the caller has requested decrypted data.
	*/
	err = dbuf_read_verify_dnode_crypt(db, flags);

	/*
	* If the arc buf is compressed or encrypted and the caller
	* requested uncompressed data, we need to untransform it
	* before returning. We also call arc_untransform() on any
	* unauthenticated blocks, which will verify their MAC if
	* the key is now available.
	*/
	if (err == 0 && db->db_buf != NULL &&
	(flags & DB_RF_NO_DECRYPT) == 0 &&
	(arc_is_encrypted(db->db_buf) \|\|
	arc_is_unauthenticated(db->db_buf) \|\|
	arc_get_compression(db->db_buf) != ZIO_COMPRESS_OFF)) {
	zbookmark_phys_t zb;

	SET_BOOKMARK(&zb, dmu_objset_id(db->db_objset),
	db->db.db_object, db->db_level, db->db_blkid);
	dbuf_fix_old_data(db, spa_syncing_txg(spa));
	err = arc_untransform(db->db_buf, spa, &zb, B_FALSE);
	dbuf_set_data(db, db->db_buf);
	}
	mutex_exit(&db->db_mtx);
	if (err == 0 && prefetch) {
	dmu_zfetch(&dn->dn_zfetch, db->db_blkid, 1, B_TRUE,
	B_FALSE, flags & DB_RF_HAVESTRUCT);
	}
	DB_DNODE_EXIT(db);
	DBUF_STAT_BUMP(hash_hits);
	} else if (db->db_state == DB_UNCACHED) {
	spa_t *spa = dn->dn_objset->os_spa;
	boolean_t need_wait = B_FALSE;

	db_lock_type_t dblt = dmu_buf_lock_parent(db, RW_READER, FTAG);

	if (zio == NULL &&
	db->db_blkptr != NULL && !BP_IS_HOLE(db->db_blkptr)) {
	zio = zio_root(spa, NULL, NULL, ZIO_FLAG_CANFAIL);
	need_wait = B_TRUE;
	}
	err = dbuf_read_impl(db, zio, flags, dblt, FTAG);
	/*
	* dbuf_read_impl has dropped db_mtx and our parent's rwlock
	* for us
	*/
	if (!err && prefetch) {
	dmu_zfetch(&dn->dn_zfetch, db->db_blkid, 1, B_TRUE,
	db->db_state != DB_CACHED,
	flags & DB_RF_HAVESTRUCT);
	}

	DB_DNODE_EXIT(db);
	DBUF_STAT_BUMP(hash_misses);

	/*
	* If we created a zio_root we must execute it to avoid
	* leaking it, even if it isn't attached to any work due
	* to an error in dbuf_read_impl().
	*/
	if (need_wait) {
	if (err == 0)
	err = zio_wait(zio);
	else
	VERIFY0(zio_wait(zio));
	}
	} else {
	/*
	* Another reader came in while the dbuf was in flight
	* between UNCACHED and CACHED. Either a writer will finish
	* writing the buffer (sending the dbuf to CACHED) or the
	* first reader's request will reach the read_done callback
	* and send the dbuf to CACHED. Otherwise, a failure
	* occurred and the dbuf went to UNCACHED.
	*/
	mutex_exit(&db->db_mtx);
	if (prefetch) {
	dmu_zfetch(&dn->dn_zfetch, db->db_blkid, 1, B_TRUE,
	B_TRUE, flags & DB_RF_HAVESTRUCT);
	}
	DB_DNODE_EXIT(db);
	DBUF_STAT_BUMP(hash_misses);

	/* Skip the wait per the caller's request. */
	if ((flags & DB_RF_NEVERWAIT) == 0) {
	mutex_enter(&db->db_mtx);
	while (db->db_state == DB_READ \|\|
	db->db_state == DB_FILL) {
	ASSERT(db->db_state == DB_READ \|\|
	(flags & DB_RF_HAVESTRUCT) == 0);
	DTRACE_PROBE2(blocked__read, dmu_buf_impl_t *,
	db, zio_t *, zio);
	cv_wait(&db->db_changed, &db->db_mtx);
	}
	if (db->db_state == DB_UNCACHED)
	err = SET_ERROR(EIO);
	mutex_exit(&db->db_mtx);
	}
	}

	return (err);
	}

	static void
	dbuf_noread(dmu_buf_impl_t *db)
	{
	ASSERT(!zfs_refcount_is_zero(&db->db_holds));
	ASSERT(db->db_blkid != DMU_BONUS_BLKID);
	mutex_enter(&db->db_mtx);
	while (db->db_state == DB_READ \|\| db->db_state == DB_FILL)
	cv_wait(&db->db_changed, &db->db_mtx);
	if (db->db_state == DB_UNCACHED) {
	ASSERT(db->db_buf == NULL);
	ASSERT(db->db.db_data == NULL);
	dbuf_set_data(db, dbuf_alloc_arcbuf(db));
	db->db_state = DB_FILL;
	DTRACE_SET_STATE(db, "assigning filled buffer");
	} else if (db->db_state == DB_NOFILL) {
	dbuf_clear_data(db);
	} else {
	ASSERT3U(db->db_state, ==, DB_CACHED);
	}
	mutex_exit(&db->db_mtx);
	}

	void
	dbuf_unoverride(dbuf_dirty_record_t *dr)
	{
	dmu_buf_impl_t *db = dr->dr_dbuf;
	blkptr_t *bp = &dr->dt.dl.dr_overridden_by;
	uint64_t txg = dr->dr_txg;

	ASSERT(MUTEX_HELD(&db->db_mtx));
	/*
	* This assert is valid because dmu_sync() expects to be called by
	* a zilog's get_data while holding a range lock. This call only
	* comes from dbuf_dirty() callers who must also hold a range lock.
	*/
	ASSERT(dr->dt.dl.dr_override_state != DR_IN_DMU_SYNC);
	ASSERT(db->db_level == 0);

	if (db->db_blkid == DMU_BONUS_BLKID \|\|
	dr->dt.dl.dr_override_state == DR_NOT_OVERRIDDEN)
	return;

	ASSERT(db->db_data_pending != dr);

	/* free this block */
	if (!BP_IS_HOLE(bp) && !dr->dt.dl.dr_nopwrite)
	zio_free(db->db_objset->os_spa, txg, bp);

	dr->dt.dl.dr_override_state = DR_NOT_OVERRIDDEN;
	dr->dt.dl.dr_nopwrite = B_FALSE;
	dr->dt.dl.dr_has_raw_params = B_FALSE;

	/*
	* Release the already-written buffer, so we leave it in
	* a consistent dirty state. Note that all callers are
	* modifying the buffer, so they will immediately do
	* another (redundant) arc_release(). Therefore, leave
	* the buf thawed to save the effort of freezing &
	* immediately re-thawing it.
	*/
	arc_release(dr->dt.dl.dr_data, db);
	}

	/*
	* Evict (if its unreferenced) or clear (if its referenced) any level-0
	* data blocks in the free range, so that any future readers will find
	* empty blocks.
	*/
	void
	dbuf_free_range(dnode_t *dn, uint64_t start_blkid, uint64_t end_blkid,
	dmu_tx_t *tx)
	{
	dmu_buf_impl_t *db_search;
	dmu_buf_impl_t db, db_next;
	uint64_t txg = tx->tx_txg;
	avl_index_t where;
	dbuf_dirty_record_t *dr;

	if (end_blkid > dn->dn_maxblkid &&
	!(start_blkid == DMU_SPILL_BLKID \|\| end_blkid == DMU_SPILL_BLKID))
	end_blkid = dn->dn_maxblkid;
	dprintf_dnode(dn, "start=%llu end=%llu\n", start_blkid, end_blkid);

	db_search = kmem_alloc(sizeof (dmu_buf_impl_t), KM_SLEEP);
	db_search->db_level = 0;
	db_search->db_blkid = start_blkid;
	db_search->db_state = DB_SEARCH;

	mutex_enter(&dn->dn_dbufs_mtx);
	db = avl_find(&dn->dn_dbufs, db_search, &where);
	ASSERT3P(db, ==, NULL);

	db = avl_nearest(&dn->dn_dbufs, where, AVL_AFTER);

	for (; db != NULL; db = db_next) {
	db_next = AVL_NEXT(&dn->dn_dbufs, db);
	ASSERT(db->db_blkid != DMU_BONUS_BLKID);

	if (db->db_level != 0 \|\| db->db_blkid > end_blkid) {
	break;
	}
	ASSERT3U(db->db_blkid, >=, start_blkid);

	/* found a level 0 buffer in the range */
	mutex_enter(&db->db_mtx);
	if (dbuf_undirty(db, tx)) {
	/* mutex has been dropped and dbuf destroyed */
	continue;
	}

	if (db->db_state == DB_UNCACHED \|\|
	db->db_state == DB_NOFILL \|\|
	db->db_state == DB_EVICTING) {
	ASSERT(db->db.db_data == NULL);
	mutex_exit(&db->db_mtx);
	continue;
	}
	if (db->db_state == DB_READ \|\| db->db_state == DB_FILL) {
	/* will be handled in dbuf_read_done or dbuf_rele */
	db->db_freed_in_flight = TRUE;
	mutex_exit(&db->db_mtx);
	continue;
	}
	if (zfs_refcount_count(&db->db_holds) == 0) {
	ASSERT(db->db_buf);
	dbuf_destroy(db);
	continue;
	}
	/* The dbuf is referenced */

	dr = list_head(&db->db_dirty_records);
	if (dr != NULL) {
	if (dr->dr_txg == txg) {
	/*
	* This buffer is "in-use", re-adjust the file
	* size to reflect that this buffer may
	* contain new data when we sync.
	*/
	if (db->db_blkid != DMU_SPILL_BLKID &&
	db->db_blkid > dn->dn_maxblkid)
	dn->dn_maxblkid = db->db_blkid;
	dbuf_unoverride(dr);
	} else {
	/*
	* This dbuf is not dirty in the open context.
	* Either uncache it (if its not referenced in
	* the open context) or reset its contents to
	* empty.
	*/
	dbuf_fix_old_data(db, txg);
	}
	}
	/* clear the contents if its cached */
	if (db->db_state == DB_CACHED) {
	ASSERT(db->db.db_data != NULL);
	arc_release(db->db_buf, db);
	rw_enter(&db->db_rwlock, RW_WRITER);
	bzero(db->db.db_data, db->db.db_size);
	rw_exit(&db->db_rwlock);
	arc_buf_freeze(db->db_buf);
	}

	mutex_exit(&db->db_mtx);
	}

	kmem_free(db_search, sizeof (dmu_buf_impl_t));
	mutex_exit(&dn->dn_dbufs_mtx);
	}

	void
	dbuf_new_size(dmu_buf_impl_t db, int size, dmu_tx_t tx)
	{
	arc_buf_t buf, old_buf;
	dbuf_dirty_record_t *dr;
	int osize = db->db.db_size;
	arc_buf_contents_t type = DBUF_GET_BUFC_TYPE(db);
	dnode_t *dn;

	ASSERT(db->db_blkid != DMU_BONUS_BLKID);

	DB_DNODE_ENTER(db);
	dn = DB_DNODE(db);

	/*
	* XXX we should be doing a dbuf_read, checking the return
	* value and returning that up to our callers
	*/
	dmu_buf_will_dirty(&db->db, tx);

	/* create the data buffer for the new block */
	buf = arc_alloc_buf(dn->dn_objset->os_spa, db, type, size);

	/* copy old block data to the new block */
	old_buf = db->db_buf;
	bcopy(old_buf->b_data, buf->b_data, MIN(osize, size));
	/* zero the remainder */
	if (size > osize)
	bzero((uint8_t *)buf->b_data + osize, size - osize);

	mutex_enter(&db->db_mtx);
	dbuf_set_data(db, buf);
	arc_buf_destroy(old_buf, db);
	db->db.db_size = size;

	dr = list_head(&db->db_dirty_records);
	/* dirty record added by dmu_buf_will_dirty() */
	VERIFY(dr != NULL);
	if (db->db_level == 0)
	dr->dt.dl.dr_data = buf;
	ASSERT3U(dr->dr_txg, ==, tx->tx_txg);
	ASSERT3U(dr->dr_accounted, ==, osize);
	dr->dr_accounted = size;
	mutex_exit(&db->db_mtx);

	dmu_objset_willuse_space(dn->dn_objset, size - osize, tx);
	DB_DNODE_EXIT(db);
	}

	void
	dbuf_release_bp(dmu_buf_impl_t *db)
	{
	objset_t *os __maybe_unused = db->db_objset;

	ASSERT(dsl_pool_sync_context(dmu_objset_pool(os)));
	ASSERT(arc_released(os->os_phys_buf) \|\|
	list_link_active(&os->os_dsl_dataset->ds_synced_link));
	ASSERT(db->db_parent == NULL \|\| arc_released(db->db_parent->db_buf));

	(void) arc_release(db->db_buf, db);
	}

	/*
	* We already have a dirty record for this TXG, and we are being
	* dirtied again.
	*/
	static void
	dbuf_redirty(dbuf_dirty_record_t *dr)
	{
	dmu_buf_impl_t *db = dr->dr_dbuf;

	ASSERT(MUTEX_HELD(&db->db_mtx));

	if (db->db_level == 0 && db->db_blkid != DMU_BONUS_BLKID) {
	/*
	* If this buffer has already been written out,
	* we now need to reset its state.
	*/
	dbuf_unoverride(dr);
	if (db->db.db_object != DMU_META_DNODE_OBJECT &&
	db->db_state != DB_NOFILL) {
	/* Already released on initial dirty, so just thaw. */
	ASSERT(arc_released(db->db_buf));
	arc_buf_thaw(db->db_buf);
	}
	}
	}

	dbuf_dirty_record_t *
	dbuf_dirty_lightweight(dnode_t dn, uint64_t blkid, dmu_tx_t tx)
	{
	rw_enter(&dn->dn_struct_rwlock, RW_READER);
	IMPLY(dn->dn_objset->os_raw_receive, dn->dn_maxblkid >= blkid);
	dnode_new_blkid(dn, blkid, tx, B_TRUE, B_FALSE);
	ASSERT(dn->dn_maxblkid >= blkid);

	dbuf_dirty_record_t dr = kmem_zalloc(sizeof (dr), KM_SLEEP);
	list_link_init(&dr->dr_dirty_node);
	list_link_init(&dr->dr_dbuf_node);
	dr->dr_dnode = dn;
	dr->dr_txg = tx->tx_txg;
	dr->dt.dll.dr_blkid = blkid;
	dr->dr_accounted = dn->dn_datablksz;

	/*
	* There should not be any dbuf for the block that we're dirtying.
	* Otherwise the buffer contents could be inconsistent between the
	* dbuf and the lightweight dirty record.
	*/
	ASSERT3P(NULL, ==, dbuf_find(dn->dn_objset, dn->dn_object, 0, blkid));

	mutex_enter(&dn->dn_mtx);
	int txgoff = tx->tx_txg & TXG_MASK;
	if (dn->dn_free_ranges[txgoff] != NULL) {
	range_tree_clear(dn->dn_free_ranges[txgoff], blkid, 1);
	}

	if (dn->dn_nlevels == 1) {
	ASSERT3U(blkid, <, dn->dn_nblkptr);
	list_insert_tail(&dn->dn_dirty_records[txgoff], dr);
	mutex_exit(&dn->dn_mtx);
	rw_exit(&dn->dn_struct_rwlock);
	dnode_setdirty(dn, tx);
	} else {
	mutex_exit(&dn->dn_mtx);

	int epbs = dn->dn_indblkshift - SPA_BLKPTRSHIFT;
	dmu_buf_impl_t *parent_db = dbuf_hold_level(dn,
	1, blkid >> epbs, FTAG);
	rw_exit(&dn->dn_struct_rwlock);
	if (parent_db == NULL) {
	kmem_free(dr, sizeof (*dr));
	return (NULL);
	}
	int err = dbuf_read(parent_db, NULL,
	(DB_RF_NOPREFETCH \| DB_RF_CANFAIL));
	if (err != 0) {
	dbuf_rele(parent_db, FTAG);
	kmem_free(dr, sizeof (*dr));
	return (NULL);
	}

	dbuf_dirty_record_t *parent_dr = dbuf_dirty(parent_db, tx);
	dbuf_rele(parent_db, FTAG);
	mutex_enter(&parent_dr->dt.di.dr_mtx);
	ASSERT3U(parent_dr->dr_txg, ==, tx->tx_txg);
	list_insert_tail(&parent_dr->dt.di.dr_children, dr);
	mutex_exit(&parent_dr->dt.di.dr_mtx);
	dr->dr_parent = parent_dr;
	}

	dmu_objset_willuse_space(dn->dn_objset, dr->dr_accounted, tx);

	return (dr);
	}

	dbuf_dirty_record_t *
	dbuf_dirty(dmu_buf_impl_t db, dmu_tx_t tx)
	{
	dnode_t *dn;
	objset_t *os;
	dbuf_dirty_record_t dr, dr_next, *dr_head;
	int txgoff = tx->tx_txg & TXG_MASK;
	boolean_t drop_struct_rwlock = B_FALSE;

	ASSERT(tx->tx_txg != 0);
	ASSERT(!zfs_refcount_is_zero(&db->db_holds));
	DMU_TX_DIRTY_BUF(tx, db);

	DB_DNODE_ENTER(db);
	dn = DB_DNODE(db);
	/*
	* Shouldn't dirty a regular buffer in syncing context. Private
	* objects may be dirtied in syncing context, but only if they
	* were already pre-dirtied in open context.
	*/
	#ifdef ZFS_DEBUG
	if (dn->dn_objset->os_dsl_dataset != NULL) {
	rrw_enter(&dn->dn_objset->os_dsl_dataset->ds_bp_rwlock,
	RW_READER, FTAG);
	}
	ASSERT(!dmu_tx_is_syncing(tx) \|\|
	BP_IS_HOLE(dn->dn_objset->os_rootbp) \|\|
	DMU_OBJECT_IS_SPECIAL(dn->dn_object) \|\|
	dn->dn_objset->os_dsl_dataset == NULL);
	if (dn->dn_objset->os_dsl_dataset != NULL)
	rrw_exit(&dn->dn_objset->os_dsl_dataset->ds_bp_rwlock, FTAG);
	#endif
	/*
	* We make this assert for private objects as well, but after we
	* check if we're already dirty. They are allowed to re-dirty
	* in syncing context.
	*/
	ASSERT(dn->dn_object == DMU_META_DNODE_OBJECT \|\|
	dn->dn_dirtyctx == DN_UNDIRTIED \|\| dn->dn_dirtyctx ==
	(dmu_tx_is_syncing(tx) ? DN_DIRTY_SYNC : DN_DIRTY_OPEN));

	mutex_enter(&db->db_mtx);
	/*
	* XXX make this true for indirects too? The problem is that
	* transactions created with dmu_tx_create_assigned() from
	* syncing context don't bother holding ahead.
	*/
	ASSERT(db->db_level != 0 \|\|
	db->db_state == DB_CACHED \|\| db->db_state == DB_FILL \|\|
	db->db_state == DB_NOFILL);

	mutex_enter(&dn->dn_mtx);
	dnode_set_dirtyctx(dn, tx, db);
	if (tx->tx_txg > dn->dn_dirty_txg)
	dn->dn_dirty_txg = tx->tx_txg;
	mutex_exit(&dn->dn_mtx);

	if (db->db_blkid == DMU_SPILL_BLKID)
	dn->dn_have_spill = B_TRUE;

	/*
	* If this buffer is already dirty, we're done.
	*/
	dr_head = list_head(&db->db_dirty_records);
	ASSERT(dr_head == NULL \|\| dr_head->dr_txg <= tx->tx_txg \|\|
	db->db.db_object == DMU_META_DNODE_OBJECT);
	dr_next = dbuf_find_dirty_lte(db, tx->tx_txg);
	if (dr_next && dr_next->dr_txg == tx->tx_txg) {
	DB_DNODE_EXIT(db);

	dbuf_redirty(dr_next);
	mutex_exit(&db->db_mtx);
	return (dr_next);
	}

	/*
	* Only valid if not already dirty.
	*/
	ASSERT(dn->dn_object == 0 \|\|
	dn->dn_dirtyctx == DN_UNDIRTIED \|\| dn->dn_dirtyctx ==
	(dmu_tx_is_syncing(tx) ? DN_DIRTY_SYNC : DN_DIRTY_OPEN));

	ASSERT3U(dn->dn_nlevels, >, db->db_level);

	/*
	* We should only be dirtying in syncing context if it's the
	* mos or we're initializing the os or it's a special object.
	* However, we are allowed to dirty in syncing context provided
	* we already dirtied it in open context. Hence we must make
	* this assertion only if we're not already dirty.
	*/
	os = dn->dn_objset;
	VERIFY3U(tx->tx_txg, <=, spa_final_dirty_txg(os->os_spa));
	#ifdef ZFS_DEBUG
	if (dn->dn_objset->os_dsl_dataset != NULL)
	rrw_enter(&os->os_dsl_dataset->ds_bp_rwlock, RW_READER, FTAG);
	ASSERT(!dmu_tx_is_syncing(tx) \|\| DMU_OBJECT_IS_SPECIAL(dn->dn_object) \|\|
	os->os_dsl_dataset == NULL \|\| BP_IS_HOLE(os->os_rootbp));
	if (dn->dn_objset->os_dsl_dataset != NULL)
	rrw_exit(&os->os_dsl_dataset->ds_bp_rwlock, FTAG);
	#endif
	ASSERT(db->db.db_size != 0);

	dprintf_dbuf(db, "size=%llx\n", (u_longlong_t)db->db.db_size);

	if (db->db_blkid != DMU_BONUS_BLKID) {
	dmu_objset_willuse_space(os, db->db.db_size, tx);
	}

	/*
	* If this buffer is dirty in an old transaction group we need
	* to make a copy of it so that the changes we make in this
	* transaction group won't leak out when we sync the older txg.
	*/
	dr = kmem_zalloc(sizeof (dbuf_dirty_record_t), KM_SLEEP);
	list_link_init(&dr->dr_dirty_node);
	list_link_init(&dr->dr_dbuf_node);
	dr->dr_dnode = dn;
	if (db->db_level == 0) {
	void *data_old = db->db_buf;

	if (db->db_state != DB_NOFILL) {
	if (db->db_blkid == DMU_BONUS_BLKID) {
	dbuf_fix_old_data(db, tx->tx_txg);
	data_old = db->db.db_data;
	} else if (db->db.db_object != DMU_META_DNODE_OBJECT) {
	/*
	* Release the data buffer from the cache so
	* that we can modify it without impacting
	* possible other users of this cached data
	* block. Note that indirect blocks and
	* private objects are not released until the
	* syncing state (since they are only modified
	* then).
	*/
	arc_release(db->db_buf, db);
	dbuf_fix_old_data(db, tx->tx_txg);
	data_old = db->db_buf;
	}
	ASSERT(data_old != NULL);
	}
	dr->dt.dl.dr_data = data_old;
	} else {
	mutex_init(&dr->dt.di.dr_mtx, NULL, MUTEX_NOLOCKDEP, NULL);
	list_create(&dr->dt.di.dr_children,
	sizeof (dbuf_dirty_record_t),
	offsetof(dbuf_dirty_record_t, dr_dirty_node));
	}
	if (db->db_blkid != DMU_BONUS_BLKID)
	dr->dr_accounted = db->db.db_size;
	dr->dr_dbuf = db;
	dr->dr_txg = tx->tx_txg;
	list_insert_before(&db->db_dirty_records, dr_next, dr);

	/*
	* We could have been freed_in_flight between the dbuf_noread
	* and dbuf_dirty. We win, as though the dbuf_noread() had
	* happened after the free.
	*/
	if (db->db_level == 0 && db->db_blkid != DMU_BONUS_BLKID &&
	db->db_blkid != DMU_SPILL_BLKID) {
	mutex_enter(&dn->dn_mtx);
	if (dn->dn_free_ranges[txgoff] != NULL) {
	range_tree_clear(dn->dn_free_ranges[txgoff],
	db->db_blkid, 1);
	}
	mutex_exit(&dn->dn_mtx);
	db->db_freed_in_flight = FALSE;
	}

	/*
	* This buffer is now part of this txg
	*/
	dbuf_add_ref(db, (void *)(uintptr_t)tx->tx_txg);
	db->db_dirtycnt += 1;
	ASSERT3U(db->db_dirtycnt, <=, 3);

	mutex_exit(&db->db_mtx);

	if (db->db_blkid == DMU_BONUS_BLKID \|\|
	db->db_blkid == DMU_SPILL_BLKID) {
	mutex_enter(&dn->dn_mtx);
	ASSERT(!list_link_active(&dr->dr_dirty_node));
	list_insert_tail(&dn->dn_dirty_records[txgoff], dr);
	mutex_exit(&dn->dn_mtx);
	dnode_setdirty(dn, tx);
	DB_DNODE_EXIT(db);
	return (dr);
	}

	if (!RW_WRITE_HELD(&dn->dn_struct_rwlock)) {
	rw_enter(&dn->dn_struct_rwlock, RW_READER);
	drop_struct_rwlock = B_TRUE;
	}

	/*
	* If we are overwriting a dedup BP, then unless it is snapshotted,
	* when we get to syncing context we will need to decrement its
	* refcount in the DDT. Prefetch the relevant DDT block so that
	* syncing context won't have to wait for the i/o.
	*/
	if (db->db_blkptr != NULL) {
	db_lock_type_t dblt = dmu_buf_lock_parent(db, RW_READER, FTAG);
	ddt_prefetch(os->os_spa, db->db_blkptr);
	dmu_buf_unlock_parent(db, dblt, FTAG);
	}

	/*
	* We need to hold the dn_struct_rwlock to make this assertion,
	* because it protects dn_phys / dn_next_nlevels from changing.
	*/
	ASSERT((dn->dn_phys->dn_nlevels == 0 && db->db_level == 0) \|\|
	dn->dn_phys->dn_nlevels > db->db_level \|\|
	dn->dn_next_nlevels[txgoff] > db->db_level \|\|
	dn->dn_next_nlevels[(tx->tx_txg-1) & TXG_MASK] > db->db_level \|\|
	dn->dn_next_nlevels[(tx->tx_txg-2) & TXG_MASK] > db->db_level);


	if (db->db_level == 0) {
	ASSERT(!db->db_objset->os_raw_receive \|\|
	dn->dn_maxblkid >= db->db_blkid);
	dnode_new_blkid(dn, db->db_blkid, tx,
	drop_struct_rwlock, B_FALSE);
	ASSERT(dn->dn_maxblkid >= db->db_blkid);
	}

	if (db->db_level+1 < dn->dn_nlevels) {
	dmu_buf_impl_t *parent = db->db_parent;
	dbuf_dirty_record_t *di;
	int parent_held = FALSE;

	if (db->db_parent == NULL \|\| db->db_parent == dn->dn_dbuf) {
	int epbs = dn->dn_indblkshift - SPA_BLKPTRSHIFT;
	parent = dbuf_hold_level(dn, db->db_level + 1,
	db->db_blkid >> epbs, FTAG);
	ASSERT(parent != NULL);
	parent_held = TRUE;
	}
	if (drop_struct_rwlock)
	rw_exit(&dn->dn_struct_rwlock);
	ASSERT3U(db->db_level + 1, ==, parent->db_level);
	di = dbuf_dirty(parent, tx);
	if (parent_held)
	dbuf_rele(parent, FTAG);

	mutex_enter(&db->db_mtx);
	/*
	* Since we've dropped the mutex, it's possible that
	* dbuf_undirty() might have changed this out from under us.
	*/
	if (list_head(&db->db_dirty_records) == dr \|\|
	dn->dn_object == DMU_META_DNODE_OBJECT) {
	mutex_enter(&di->dt.di.dr_mtx);
	ASSERT3U(di->dr_txg, ==, tx->tx_txg);
	ASSERT(!list_link_active(&dr->dr_dirty_node));
	list_insert_tail(&di->dt.di.dr_children, dr);
	mutex_exit(&di->dt.di.dr_mtx);
	dr->dr_parent = di;
	}
	mutex_exit(&db->db_mtx);
	} else {
	ASSERT(db->db_level + 1 == dn->dn_nlevels);
	ASSERT(db->db_blkid < dn->dn_nblkptr);
	ASSERT(db->db_parent == NULL \|\| db->db_parent == dn->dn_dbuf);
	mutex_enter(&dn->dn_mtx);
	ASSERT(!list_link_active(&dr->dr_dirty_node));
	list_insert_tail(&dn->dn_dirty_records[txgoff], dr);
	mutex_exit(&dn->dn_mtx);
	if (drop_struct_rwlock)
	rw_exit(&dn->dn_struct_rwlock);
	}

	dnode_setdirty(dn, tx);
	DB_DNODE_EXIT(db);
	return (dr);
	}

	static void
	dbuf_undirty_bonus(dbuf_dirty_record_t *dr)
	{
	dmu_buf_impl_t *db = dr->dr_dbuf;

	if (dr->dt.dl.dr_data != db->db.db_data) {
	struct dnode *dn = dr->dr_dnode;
	int max_bonuslen = DN_SLOTS_TO_BONUSLEN(dn->dn_num_slots);

	kmem_free(dr->dt.dl.dr_data, max_bonuslen);
	arc_space_return(max_bonuslen, ARC_SPACE_BONUS);
	}
	db->db_data_pending = NULL;
	ASSERT(list_next(&db->db_dirty_records, dr) == NULL);
	list_remove(&db->db_dirty_records, dr);
	if (dr->dr_dbuf->db_level != 0) {
	mutex_destroy(&dr->dt.di.dr_mtx);
	list_destroy(&dr->dt.di.dr_children);
	}
	kmem_free(dr, sizeof (dbuf_dirty_record_t));
	ASSERT3U(db->db_dirtycnt, >, 0);
	db->db_dirtycnt -= 1;
	}

	/*
	* Undirty a buffer in the transaction group referenced by the given
	* transaction. Return whether this evicted the dbuf.
	*/
	static boolean_t
	dbuf_undirty(dmu_buf_impl_t db, dmu_tx_t tx)
	{
	uint64_t txg = tx->tx_txg;

	ASSERT(txg != 0);

	/*
	* Due to our use of dn_nlevels below, this can only be called
	* in open context, unless we are operating on the MOS.
	* From syncing context, dn_nlevels may be different from the
	* dn_nlevels used when dbuf was dirtied.
	*/
	ASSERT(db->db_objset ==
	dmu_objset_pool(db->db_objset)->dp_meta_objset \|\|
	txg != spa_syncing_txg(dmu_objset_spa(db->db_objset)));
	ASSERT(db->db_blkid != DMU_BONUS_BLKID);
	ASSERT0(db->db_level);
	ASSERT(MUTEX_HELD(&db->db_mtx));

	/*
	* If this buffer is not dirty, we're done.
	*/
	dbuf_dirty_record_t *dr = dbuf_find_dirty_eq(db, txg);
	if (dr == NULL)
	return (B_FALSE);
	ASSERT(dr->dr_dbuf == db);

	dnode_t *dn = dr->dr_dnode;

	dprintf_dbuf(db, "size=%llx\n", (u_longlong_t)db->db.db_size);

	ASSERT(db->db.db_size != 0);

	dsl_pool_undirty_space(dmu_objset_pool(dn->dn_objset),
	dr->dr_accounted, txg);

	list_remove(&db->db_dirty_records, dr);

	/*
	* Note that there are three places in dbuf_dirty()
	* where this dirty record may be put on a list.
	* Make sure to do a list_remove corresponding to
	* every one of those list_insert calls.
	*/
	if (dr->dr_parent) {
	mutex_enter(&dr->dr_parent->dt.di.dr_mtx);
	list_remove(&dr->dr_parent->dt.di.dr_children, dr);
	mutex_exit(&dr->dr_parent->dt.di.dr_mtx);
	} else if (db->db_blkid == DMU_SPILL_BLKID \|\|
	db->db_level + 1 == dn->dn_nlevels) {
	ASSERT(db->db_blkptr == NULL \|\| db->db_parent == dn->dn_dbuf);
	mutex_enter(&dn->dn_mtx);
	list_remove(&dn->dn_dirty_records[txg & TXG_MASK], dr);
	mutex_exit(&dn->dn_mtx);
	}

	if (db->db_state != DB_NOFILL) {
	dbuf_unoverride(dr);

	ASSERT(db->db_buf != NULL);
	ASSERT(dr->dt.dl.dr_data != NULL);
	if (dr->dt.dl.dr_data != db->db_buf)
	arc_buf_destroy(dr->dt.dl.dr_data, db);
	}

	kmem_free(dr, sizeof (dbuf_dirty_record_t));

	ASSERT(db->db_dirtycnt > 0);
	db->db_dirtycnt -= 1;

	if (zfs_refcount_remove(&db->db_holds, (void *)(uintptr_t)txg) == 0) {
	ASSERT(db->db_state == DB_NOFILL \|\| arc_released(db->db_buf));
	dbuf_destroy(db);
	return (B_TRUE);
	}

	return (B_FALSE);
	}

	static void
	dmu_buf_will_dirty_impl(dmu_buf_t db_fake, int flags, dmu_tx_t tx)
	{
	dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;

	ASSERT(tx->tx_txg != 0);
	ASSERT(!zfs_refcount_is_zero(&db->db_holds));

	/*
	* Quick check for dirtiness. For already dirty blocks, this
	* reduces runtime of this function by >90%, and overall performance
	* by 50% for some workloads (e.g. file deletion with indirect blocks
	* cached).
	*/
	mutex_enter(&db->db_mtx);

	if (db->db_state == DB_CACHED) {
	dbuf_dirty_record_t *dr = dbuf_find_dirty_eq(db, tx->tx_txg);
	/*
	* It's possible that it is already dirty but not cached,
	* because there are some calls to dbuf_dirty() that don't
	* go through dmu_buf_will_dirty().
	*/
	if (dr != NULL) {
	/* This dbuf is already dirty and cached. */
	dbuf_redirty(dr);
	mutex_exit(&db->db_mtx);
	return;
	}
	}
	mutex_exit(&db->db_mtx);

	DB_DNODE_ENTER(db);
	if (RW_WRITE_HELD(&DB_DNODE(db)->dn_struct_rwlock))
	flags \|= DB_RF_HAVESTRUCT;
	DB_DNODE_EXIT(db);
	(void) dbuf_read(db, NULL, flags);
	(void) dbuf_dirty(db, tx);
	}

	void
	dmu_buf_will_dirty(dmu_buf_t db_fake, dmu_tx_t tx)
	{
	dmu_buf_will_dirty_impl(db_fake,
	DB_RF_MUST_SUCCEED \| DB_RF_NOPREFETCH, tx);
	}

	boolean_t
	dmu_buf_is_dirty(dmu_buf_t db_fake, dmu_tx_t tx)
	{
	dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;
	dbuf_dirty_record_t *dr;

	mutex_enter(&db->db_mtx);
	dr = dbuf_find_dirty_eq(db, tx->tx_txg);
	mutex_exit(&db->db_mtx);
	return (dr != NULL);
	}

	void
	dmu_buf_will_not_fill(dmu_buf_t db_fake, dmu_tx_t tx)
	{
	dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;

	db->db_state = DB_NOFILL;
	DTRACE_SET_STATE(db, "allocating NOFILL buffer");
	dmu_buf_will_fill(db_fake, tx);
	}

	void
	dmu_buf_will_fill(dmu_buf_t db_fake, dmu_tx_t tx)
	{
	dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;

	ASSERT(db->db_blkid != DMU_BONUS_BLKID);
	ASSERT(tx->tx_txg != 0);
	ASSERT(db->db_level == 0);
	ASSERT(!zfs_refcount_is_zero(&db->db_holds));

	ASSERT(db->db.db_object != DMU_META_DNODE_OBJECT \|\|
	dmu_tx_private_ok(tx));

	dbuf_noread(db);
	(void) dbuf_dirty(db, tx);
	}

	/*
	* This function is effectively the same as dmu_buf_will_dirty(), but
	* indicates the caller expects raw encrypted data in the db, and provides
	* the crypt params (byteorder, salt, iv, mac) which should be stored in the
	* blkptr_t when this dbuf is written. This is only used for blocks of
	* dnodes, during raw receive.
	*/
	void
	dmu_buf_set_crypt_params(dmu_buf_t *db_fake, boolean_t byteorder,
	const uint8_t salt, const uint8_t iv, const uint8_t mac, dmu_tx_t tx)
	{
	dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;
	dbuf_dirty_record_t *dr;

	/*
	* dr_has_raw_params is only processed for blocks of dnodes
	* (see dbuf_sync_dnode_leaf_crypt()).
	*/
	ASSERT3U(db->db.db_object, ==, DMU_META_DNODE_OBJECT);
	ASSERT3U(db->db_level, ==, 0);
	ASSERT(db->db_objset->os_raw_receive);

	dmu_buf_will_dirty_impl(db_fake,
	DB_RF_MUST_SUCCEED \| DB_RF_NOPREFETCH \| DB_RF_NO_DECRYPT, tx);

	dr = dbuf_find_dirty_eq(db, tx->tx_txg);

	ASSERT3P(dr, !=, NULL);

	dr->dt.dl.dr_has_raw_params = B_TRUE;
	dr->dt.dl.dr_byteorder = byteorder;
	bcopy(salt, dr->dt.dl.dr_salt, ZIO_DATA_SALT_LEN);
	bcopy(iv, dr->dt.dl.dr_iv, ZIO_DATA_IV_LEN);
	bcopy(mac, dr->dt.dl.dr_mac, ZIO_DATA_MAC_LEN);
	}

	static void
	dbuf_override_impl(dmu_buf_impl_t db, const blkptr_t bp, dmu_tx_t *tx)
	{
	struct dirty_leaf *dl;
	dbuf_dirty_record_t *dr;

	dr = list_head(&db->db_dirty_records);
	ASSERT3U(dr->dr_txg, ==, tx->tx_txg);
	dl = &dr->dt.dl;
	dl->dr_overridden_by = *bp;
	dl->dr_override_state = DR_OVERRIDDEN;
	dl->dr_overridden_by.blk_birth = dr->dr_txg;
	}

	/* ARGSUSED */
	void
	dmu_buf_fill_done(dmu_buf_t dbuf, dmu_tx_t tx)
	{
	dmu_buf_impl_t db = (dmu_buf_impl_t )dbuf;
	dbuf_states_t old_state;
	mutex_enter(&db->db_mtx);
	DBUF_VERIFY(db);

	old_state = db->db_state;
	db->db_state = DB_CACHED;
	if (old_state == DB_FILL) {
	if (db->db_level == 0 && db->db_freed_in_flight) {
	ASSERT(db->db_blkid != DMU_BONUS_BLKID);
	/* we were freed while filling */
	/* XXX dbuf_undirty? */
	bzero(db->db.db_data, db->db.db_size);
	db->db_freed_in_flight = FALSE;
	DTRACE_SET_STATE(db,
	"fill done handling freed in flight");
	} else {
	DTRACE_SET_STATE(db, "fill done");
	}
	cv_broadcast(&db->db_changed);
	}
	mutex_exit(&db->db_mtx);
	}

	void
	dmu_buf_write_embedded(dmu_buf_t dbuf, void data,
	bp_embedded_type_t etype, enum zio_compress comp,
	int uncompressed_size, int compressed_size, int byteorder,
	dmu_tx_t *tx)
	{
	dmu_buf_impl_t db = (dmu_buf_impl_t )dbuf;
	struct dirty_leaf *dl;
	dmu_object_type_t type;
	dbuf_dirty_record_t *dr;

	if (etype == BP_EMBEDDED_TYPE_DATA) {
	ASSERT(spa_feature_is_active(dmu_objset_spa(db->db_objset),
	SPA_FEATURE_EMBEDDED_DATA));
	}

	DB_DNODE_ENTER(db);
	type = DB_DNODE(db)->dn_type;
	DB_DNODE_EXIT(db);

	ASSERT0(db->db_level);
	ASSERT(db->db_blkid != DMU_BONUS_BLKID);

	dmu_buf_will_not_fill(dbuf, tx);

	dr = list_head(&db->db_dirty_records);
	ASSERT3U(dr->dr_txg, ==, tx->tx_txg);
	dl = &dr->dt.dl;
	encode_embedded_bp_compressed(&dl->dr_overridden_by,
	data, comp, uncompressed_size, compressed_size);
	BPE_SET_ETYPE(&dl->dr_overridden_by, etype);
	BP_SET_TYPE(&dl->dr_overridden_by, type);
	BP_SET_LEVEL(&dl->dr_overridden_by, 0);
	BP_SET_BYTEORDER(&dl->dr_overridden_by, byteorder);

	dl->dr_override_state = DR_OVERRIDDEN;
	dl->dr_overridden_by.blk_birth = dr->dr_txg;
	}

	void
	dmu_buf_redact(dmu_buf_t dbuf, dmu_tx_t tx)
	{
	dmu_buf_impl_t db = (dmu_buf_impl_t )dbuf;
	dmu_object_type_t type;
	ASSERT(dsl_dataset_feature_is_active(db->db_objset->os_dsl_dataset,
	SPA_FEATURE_REDACTED_DATASETS));

	DB_DNODE_ENTER(db);
	type = DB_DNODE(db)->dn_type;
	DB_DNODE_EXIT(db);

	ASSERT0(db->db_level);
	dmu_buf_will_not_fill(dbuf, tx);

	blkptr_t bp = { { { {0} } } };
	BP_SET_TYPE(&bp, type);
	BP_SET_LEVEL(&bp, 0);
	BP_SET_BIRTH(&bp, tx->tx_txg, 0);
	BP_SET_REDACTED(&bp);
	BPE_SET_LSIZE(&bp, dbuf->db_size);

	dbuf_override_impl(db, &bp, tx);
	}

	/*
	* Directly assign a provided arc buf to a given dbuf if it's not referenced
	* by anybody except our caller. Otherwise copy arcbuf's contents to dbuf.
	*/
	void
	dbuf_assign_arcbuf(dmu_buf_impl_t db, arc_buf_t buf, dmu_tx_t *tx)
	{
	ASSERT(!zfs_refcount_is_zero(&db->db_holds));
	ASSERT(db->db_blkid != DMU_BONUS_BLKID);
	ASSERT(db->db_level == 0);
	ASSERT3U(dbuf_is_metadata(db), ==, arc_is_metadata(buf));
	ASSERT(buf != NULL);
	ASSERT3U(arc_buf_lsize(buf), ==, db->db.db_size);
	ASSERT(tx->tx_txg != 0);

	arc_return_buf(buf, db);
	ASSERT(arc_released(buf));

	mutex_enter(&db->db_mtx);

	while (db->db_state == DB_READ \|\| db->db_state == DB_FILL)
	cv_wait(&db->db_changed, &db->db_mtx);

	ASSERT(db->db_state == DB_CACHED \|\| db->db_state == DB_UNCACHED);

	if (db->db_state == DB_CACHED &&
	zfs_refcount_count(&db->db_holds) - 1 > db->db_dirtycnt) {
	/*
	* In practice, we will never have a case where we have an
	* encrypted arc buffer while additional holds exist on the
	* dbuf. We don't handle this here so we simply assert that
	* fact instead.
	*/
	ASSERT(!arc_is_encrypted(buf));
	mutex_exit(&db->db_mtx);
	(void) dbuf_dirty(db, tx);
	bcopy(buf->b_data, db->db.db_data, db->db.db_size);
	arc_buf_destroy(buf, db);
	return;
	}

	if (db->db_state == DB_CACHED) {
	dbuf_dirty_record_t *dr = list_head(&db->db_dirty_records);

	ASSERT(db->db_buf != NULL);
	if (dr != NULL && dr->dr_txg == tx->tx_txg) {
	ASSERT(dr->dt.dl.dr_data == db->db_buf);

	if (!arc_released(db->db_buf)) {
	ASSERT(dr->dt.dl.dr_override_state ==
	DR_OVERRIDDEN);
	arc_release(db->db_buf, db);
	}
	dr->dt.dl.dr_data = buf;
	arc_buf_destroy(db->db_buf, db);
	} else if (dr == NULL \|\| dr->dt.dl.dr_data != db->db_buf) {
	arc_release(db->db_buf, db);
	arc_buf_destroy(db->db_buf, db);
	}
	db->db_buf = NULL;
	}
	ASSERT(db->db_buf == NULL);
	dbuf_set_data(db, buf);
	db->db_state = DB_FILL;
	DTRACE_SET_STATE(db, "filling assigned arcbuf");
	mutex_exit(&db->db_mtx);
	(void) dbuf_dirty(db, tx);
	dmu_buf_fill_done(&db->db, tx);
	}

	void
	dbuf_destroy(dmu_buf_impl_t *db)
	{
	dnode_t *dn;
	dmu_buf_impl_t *parent = db->db_parent;
	dmu_buf_impl_t *dndb;

	ASSERT(MUTEX_HELD(&db->db_mtx));
	ASSERT(zfs_refcount_is_zero(&db->db_holds));

	if (db->db_buf != NULL) {
	arc_buf_destroy(db->db_buf, db);
	db->db_buf = NULL;
	}

	if (db->db_blkid == DMU_BONUS_BLKID) {
	int slots = DB_DNODE(db)->dn_num_slots;
	int bonuslen = DN_SLOTS_TO_BONUSLEN(slots);
	if (db->db.db_data != NULL) {
	kmem_free(db->db.db_data, bonuslen);
	arc_space_return(bonuslen, ARC_SPACE_BONUS);
	db->db_state = DB_UNCACHED;
	DTRACE_SET_STATE(db, "buffer cleared");
	}
	}

	dbuf_clear_data(db);

	if (multilist_link_active(&db->db_cache_link)) {
	ASSERT(db->db_caching_status == DB_DBUF_CACHE \|\|
	db->db_caching_status == DB_DBUF_METADATA_CACHE);

	- multilist_remove(dbuf_caches[db->db_caching_status].cache, db);
	+ multilist_remove(&dbuf_caches[db->db_caching_status].cache, db);
	(void) zfs_refcount_remove_many(
	&dbuf_caches[db->db_caching_status].size,
	db->db.db_size, db);

	if (db->db_caching_status == DB_DBUF_METADATA_CACHE) {
	DBUF_STAT_BUMPDOWN(metadata_cache_count);
	} else {
	DBUF_STAT_BUMPDOWN(cache_levels[db->db_level]);
	DBUF_STAT_BUMPDOWN(cache_count);
	DBUF_STAT_DECR(cache_levels_bytes[db->db_level],
	db->db.db_size);
	}
	db->db_caching_status = DB_NO_CACHE;
	}

	ASSERT(db->db_state == DB_UNCACHED \|\| db->db_state == DB_NOFILL);
	ASSERT(db->db_data_pending == NULL);
	ASSERT(list_is_empty(&db->db_dirty_records));

	db->db_state = DB_EVICTING;
	DTRACE_SET_STATE(db, "buffer eviction started");
	db->db_blkptr = NULL;

	/*
	* Now that db_state is DB_EVICTING, nobody else can find this via
	* the hash table. We can now drop db_mtx, which allows us to
	* acquire the dn_dbufs_mtx.
	*/
	mutex_exit(&db->db_mtx);

	DB_DNODE_ENTER(db);
	dn = DB_DNODE(db);
	dndb = dn->dn_dbuf;
	if (db->db_blkid != DMU_BONUS_BLKID) {
	boolean_t needlock = !MUTEX_HELD(&dn->dn_dbufs_mtx);
	if (needlock)
	mutex_enter_nested(&dn->dn_dbufs_mtx,
	NESTED_SINGLE);
	avl_remove(&dn->dn_dbufs, db);
	membar_producer();
	DB_DNODE_EXIT(db);
	if (needlock)
	mutex_exit(&dn->dn_dbufs_mtx);
	/*
	* Decrementing the dbuf count means that the hold corresponding
	* to the removed dbuf is no longer discounted in dnode_move(),
	* so the dnode cannot be moved until after we release the hold.
	* The membar_producer() ensures visibility of the decremented
	* value in dnode_move(), since DB_DNODE_EXIT doesn't actually
	* release any lock.
	*/
	mutex_enter(&dn->dn_mtx);
	dnode_rele_and_unlock(dn, db, B_TRUE);
	db->db_dnode_handle = NULL;

	dbuf_hash_remove(db);
	} else {
	DB_DNODE_EXIT(db);
	}

	ASSERT(zfs_refcount_is_zero(&db->db_holds));

	db->db_parent = NULL;

	ASSERT(db->db_buf == NULL);
	ASSERT(db->db.db_data == NULL);
	ASSERT(db->db_hash_next == NULL);
	ASSERT(db->db_blkptr == NULL);
	ASSERT(db->db_data_pending == NULL);
	ASSERT3U(db->db_caching_status, ==, DB_NO_CACHE);
	ASSERT(!multilist_link_active(&db->db_cache_link));

	kmem_cache_free(dbuf_kmem_cache, db);
	arc_space_return(sizeof (dmu_buf_impl_t), ARC_SPACE_DBUF);

	/*
	* If this dbuf is referenced from an indirect dbuf,
	* decrement the ref count on the indirect dbuf.
	*/
	if (parent && parent != dndb) {
	mutex_enter(&parent->db_mtx);
	dbuf_rele_and_unlock(parent, db, B_TRUE);
	}
	}

	/*
	* Note: While bpp will always be updated if the function returns success,
	* parentp will not be updated if the dnode does not have dn_dbuf filled in;
	* this happens when the dnode is the meta-dnode, or {user\|group\|project}used
	* object.
	*/
	__attribute__((always_inline))
	static inline int
	dbuf_findbp(dnode_t *dn, int level, uint64_t blkid, int fail_sparse,
	dmu_buf_impl_t parentp, blkptr_t bpp)
	{
	*parentp = NULL;
	*bpp = NULL;

	ASSERT(blkid != DMU_BONUS_BLKID);

	if (blkid == DMU_SPILL_BLKID) {
	mutex_enter(&dn->dn_mtx);
	if (dn->dn_have_spill &&
	(dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR))
	*bpp = DN_SPILL_BLKPTR(dn->dn_phys);
	else
	*bpp = NULL;
	dbuf_add_ref(dn->dn_dbuf, NULL);
	*parentp = dn->dn_dbuf;
	mutex_exit(&dn->dn_mtx);
	return (0);
	}

	int nlevels =
	(dn->dn_phys->dn_nlevels == 0) ? 1 : dn->dn_phys->dn_nlevels;
	int epbs = dn->dn_indblkshift - SPA_BLKPTRSHIFT;

	ASSERT3U(level * epbs, <, 64);
	ASSERT(RW_LOCK_HELD(&dn->dn_struct_rwlock));
	/*
	* This assertion shouldn't trip as long as the max indirect block size
	* is less than 1M. The reason for this is that up to that point,
	* the number of levels required to address an entire object with blocks
	* of size SPA_MINBLOCKSIZE satisfies nlevels * epbs + 1 <= 64. In
	* other words, if N * epbs + 1 > 64, then if (N-1) * epbs + 1 > 55
	* (i.e. we can address the entire object), objects will all use at most
	* N-1 levels and the assertion won't overflow. However, once epbs is
	* 13, 4 * 13 + 1 = 53, but 5 * 13 + 1 = 66. Then, 4 levels will not be
	* enough to address an entire object, so objects will have 5 levels,
	* but then this assertion will overflow.
	*
	* All this is to say that if we ever increase DN_MAX_INDBLKSHIFT, we
	* need to redo this logic to handle overflows.
	*/
	ASSERT(level >= nlevels \|\|
	((nlevels - level - 1) * epbs) +
	highbit64(dn->dn_phys->dn_nblkptr) <= 64);
	if (level >= nlevels \|\|
	blkid >= ((uint64_t)dn->dn_phys->dn_nblkptr <<
	((nlevels - level - 1) * epbs)) \|\|
	(fail_sparse &&
	blkid > (dn->dn_phys->dn_maxblkid >> (level * epbs)))) {
	/* the buffer has no parent yet */
	return (SET_ERROR(ENOENT));
	} else if (level < nlevels-1) {
	/* this block is referenced from an indirect block */
	int err;

	err = dbuf_hold_impl(dn, level + 1,
	blkid >> epbs, fail_sparse, FALSE, NULL, parentp);

	if (err)
	return (err);
	err = dbuf_read(*parentp, NULL,
	(DB_RF_HAVESTRUCT \| DB_RF_NOPREFETCH \| DB_RF_CANFAIL));
	if (err) {
	dbuf_rele(*parentp, NULL);
	*parentp = NULL;
	return (err);
	}
	rw_enter(&(*parentp)->db_rwlock, RW_READER);
	bpp = ((blkptr_t )(*parentp)->db.db_data) +
	(blkid & ((1ULL << epbs) - 1));
	if (blkid > (dn->dn_phys->dn_maxblkid >> (level * epbs)))
	ASSERT(BP_IS_HOLE(*bpp));
	rw_exit(&(*parentp)->db_rwlock);
	return (0);
	} else {
	/* the block is referenced from the dnode */
	ASSERT3U(level, ==, nlevels-1);
	ASSERT(dn->dn_phys->dn_nblkptr == 0 \|\|
	blkid < dn->dn_phys->dn_nblkptr);
	if (dn->dn_dbuf) {
	dbuf_add_ref(dn->dn_dbuf, NULL);
	*parentp = dn->dn_dbuf;
	}
	*bpp = &dn->dn_phys->dn_blkptr[blkid];
	return (0);
	}
	}

	static dmu_buf_impl_t *
	dbuf_create(dnode_t *dn, uint8_t level, uint64_t blkid,
	dmu_buf_impl_t parent, blkptr_t blkptr)
	{
	objset_t *os = dn->dn_objset;
	dmu_buf_impl_t db, odb;

	ASSERT(RW_LOCK_HELD(&dn->dn_struct_rwlock));
	ASSERT(dn->dn_type != DMU_OT_NONE);

	db = kmem_cache_alloc(dbuf_kmem_cache, KM_SLEEP);

	list_create(&db->db_dirty_records, sizeof (dbuf_dirty_record_t),
	offsetof(dbuf_dirty_record_t, dr_dbuf_node));

	db->db_objset = os;
	db->db.db_object = dn->dn_object;
	db->db_level = level;
	db->db_blkid = blkid;
	db->db_dirtycnt = 0;
	db->db_dnode_handle = dn->dn_handle;
	db->db_parent = parent;
	db->db_blkptr = blkptr;

	db->db_user = NULL;
	db->db_user_immediate_evict = FALSE;
	db->db_freed_in_flight = FALSE;
	db->db_pending_evict = FALSE;

	if (blkid == DMU_BONUS_BLKID) {
	ASSERT3P(parent, ==, dn->dn_dbuf);
	db->db.db_size = DN_SLOTS_TO_BONUSLEN(dn->dn_num_slots) -
	(dn->dn_nblkptr-1) * sizeof (blkptr_t);
	ASSERT3U(db->db.db_size, >=, dn->dn_bonuslen);
	db->db.db_offset = DMU_BONUS_BLKID;
	db->db_state = DB_UNCACHED;
	DTRACE_SET_STATE(db, "bonus buffer created");
	db->db_caching_status = DB_NO_CACHE;
	/* the bonus dbuf is not placed in the hash table */
	arc_space_consume(sizeof (dmu_buf_impl_t), ARC_SPACE_DBUF);
	return (db);
	} else if (blkid == DMU_SPILL_BLKID) {
	db->db.db_size = (blkptr != NULL) ?
	BP_GET_LSIZE(blkptr) : SPA_MINBLOCKSIZE;
	db->db.db_offset = 0;
	} else {
	int blocksize =
	db->db_level ? 1 << dn->dn_indblkshift : dn->dn_datablksz;
	db->db.db_size = blocksize;
	db->db.db_offset = db->db_blkid * blocksize;
	}

	/*
	* Hold the dn_dbufs_mtx while we get the new dbuf
	* in the hash table and added to the dbufs list.
	* This prevents a possible deadlock with someone
	* trying to look up this dbuf before it's added to the
	* dn_dbufs list.
	*/
	mutex_enter(&dn->dn_dbufs_mtx);
	db->db_state = DB_EVICTING; /* not worth logging this state change */
	if ((odb = dbuf_hash_insert(db)) != NULL) {
	/* someone else inserted it first */
	kmem_cache_free(dbuf_kmem_cache, db);
	mutex_exit(&dn->dn_dbufs_mtx);
	DBUF_STAT_BUMP(hash_insert_race);
	return (odb);
	}
	avl_add(&dn->dn_dbufs, db);

	db->db_state = DB_UNCACHED;
	DTRACE_SET_STATE(db, "regular buffer created");
	db->db_caching_status = DB_NO_CACHE;
	mutex_exit(&dn->dn_dbufs_mtx);
	arc_space_consume(sizeof (dmu_buf_impl_t), ARC_SPACE_DBUF);

	if (parent && parent != dn->dn_dbuf)
	dbuf_add_ref(parent, db);

	ASSERT(dn->dn_object == DMU_META_DNODE_OBJECT \|\|
	zfs_refcount_count(&dn->dn_holds) > 0);
	(void) zfs_refcount_add(&dn->dn_holds, db);

	dprintf_dbuf(db, "db=%p\n", db);

	return (db);
	}

	/*
	* This function returns a block pointer and information about the object,
	* given a dnode and a block. This is a publicly accessible version of
	* dbuf_findbp that only returns some information, rather than the
	* dbuf. Note that the dnode passed in must be held, and the dn_struct_rwlock
	* should be locked as (at least) a reader.
	*/
	int
	dbuf_dnode_findbp(dnode_t *dn, uint64_t level, uint64_t blkid,
	blkptr_t bp, uint16_t datablkszsec, uint8_t *indblkshift)
	{
	dmu_buf_impl_t *dbp = NULL;
	blkptr_t *bp2;
	int err = 0;
	ASSERT(RW_LOCK_HELD(&dn->dn_struct_rwlock));

	err = dbuf_findbp(dn, level, blkid, B_FALSE, &dbp, &bp2);
	if (err == 0) {
	bp = bp2;
	if (dbp != NULL)
	dbuf_rele(dbp, NULL);
	if (datablkszsec != NULL)
	*datablkszsec = dn->dn_phys->dn_datablkszsec;
	if (indblkshift != NULL)
	*indblkshift = dn->dn_phys->dn_indblkshift;
	}

	return (err);
	}

	typedef struct dbuf_prefetch_arg {
	spa_t dpa_spa; / The spa to issue the prefetch in. */
	zbookmark_phys_t dpa_zb; /* The target block to prefetch. */
	int dpa_epbs; /* Entries (blkptr_t's) Per Block Shift. */
	int dpa_curlevel; /* The current level that we're reading */
	dnode_t dpa_dnode; / The dnode associated with the prefetch */
	zio_priority_t dpa_prio; /* The priority I/Os should be issued at. */
	zio_t dpa_zio; / The parent zio_t for all prefetches. */
	arc_flags_t dpa_aflags; /* Flags to pass to the final prefetch. */
	dbuf_prefetch_fn dpa_cb; /* prefetch completion callback */
	void dpa_arg; / prefetch completion arg */
	} dbuf_prefetch_arg_t;

	static void
	dbuf_prefetch_fini(dbuf_prefetch_arg_t *dpa, boolean_t io_done)
	{
	if (dpa->dpa_cb != NULL)
	dpa->dpa_cb(dpa->dpa_arg, io_done);
	kmem_free(dpa, sizeof (*dpa));
	}

	static void
	dbuf_issue_final_prefetch_done(zio_t zio, const zbookmark_phys_t zb,
	const blkptr_t iobp, arc_buf_t abuf, void *private)
	{
	dbuf_prefetch_arg_t *dpa = private;

	dbuf_prefetch_fini(dpa, B_TRUE);
	if (abuf != NULL)
	arc_buf_destroy(abuf, private);
	}

	/*
	* Actually issue the prefetch read for the block given.
	*/
	static void
	dbuf_issue_final_prefetch(dbuf_prefetch_arg_t dpa, blkptr_t bp)
	{
	ASSERT(!BP_IS_REDACTED(bp) \|\|
	dsl_dataset_feature_is_active(
	dpa->dpa_dnode->dn_objset->os_dsl_dataset,
	SPA_FEATURE_REDACTED_DATASETS));

	if (BP_IS_HOLE(bp) \|\| BP_IS_EMBEDDED(bp) \|\| BP_IS_REDACTED(bp))
	return (dbuf_prefetch_fini(dpa, B_FALSE));

	int zio_flags = ZIO_FLAG_CANFAIL \| ZIO_FLAG_SPECULATIVE;
	arc_flags_t aflags =
	dpa->dpa_aflags \| ARC_FLAG_NOWAIT \| ARC_FLAG_PREFETCH \|
	ARC_FLAG_NO_BUF;

	/* dnodes are always read as raw and then converted later */
	if (BP_GET_TYPE(bp) == DMU_OT_DNODE && BP_IS_PROTECTED(bp) &&
	dpa->dpa_curlevel == 0)
	zio_flags \|= ZIO_FLAG_RAW;

	ASSERT3U(dpa->dpa_curlevel, ==, BP_GET_LEVEL(bp));
	ASSERT3U(dpa->dpa_curlevel, ==, dpa->dpa_zb.zb_level);
	ASSERT(dpa->dpa_zio != NULL);
	(void) arc_read(dpa->dpa_zio, dpa->dpa_spa, bp,
	dbuf_issue_final_prefetch_done, dpa,
	dpa->dpa_prio, zio_flags, &aflags, &dpa->dpa_zb);
	}

	/*
	* Called when an indirect block above our prefetch target is read in. This
	* will either read in the next indirect block down the tree or issue the actual
	* prefetch if the next block down is our target.
	*/
	static void
	dbuf_prefetch_indirect_done(zio_t zio, const zbookmark_phys_t zb,
	const blkptr_t iobp, arc_buf_t abuf, void *private)
	{
	dbuf_prefetch_arg_t *dpa = private;

	ASSERT3S(dpa->dpa_zb.zb_level, <, dpa->dpa_curlevel);
	ASSERT3S(dpa->dpa_curlevel, >, 0);

	if (abuf == NULL) {
	ASSERT(zio == NULL \|\| zio->io_error != 0);
	return (dbuf_prefetch_fini(dpa, B_TRUE));
	}
	ASSERT(zio == NULL \|\| zio->io_error == 0);

	/*
	* The dpa_dnode is only valid if we are called with a NULL
	* zio. This indicates that the arc_read() returned without
	* first calling zio_read() to issue a physical read. Once
	* a physical read is made the dpa_dnode must be invalidated
	* as the locks guarding it may have been dropped. If the
	* dpa_dnode is still valid, then we want to add it to the dbuf
	* cache. To do so, we must hold the dbuf associated with the block
	* we just prefetched, read its contents so that we associate it
	* with an arc_buf_t, and then release it.
	*/
	if (zio != NULL) {
	ASSERT3S(BP_GET_LEVEL(zio->io_bp), ==, dpa->dpa_curlevel);
	if (zio->io_flags & ZIO_FLAG_RAW_COMPRESS) {
	ASSERT3U(BP_GET_PSIZE(zio->io_bp), ==, zio->io_size);
	} else {
	ASSERT3U(BP_GET_LSIZE(zio->io_bp), ==, zio->io_size);
	}
	ASSERT3P(zio->io_spa, ==, dpa->dpa_spa);

	dpa->dpa_dnode = NULL;
	} else if (dpa->dpa_dnode != NULL) {
	uint64_t curblkid = dpa->dpa_zb.zb_blkid >>
	(dpa->dpa_epbs * (dpa->dpa_curlevel -
	dpa->dpa_zb.zb_level));
	dmu_buf_impl_t *db = dbuf_hold_level(dpa->dpa_dnode,
	dpa->dpa_curlevel, curblkid, FTAG);
	if (db == NULL) {
	arc_buf_destroy(abuf, private);
	return (dbuf_prefetch_fini(dpa, B_TRUE));
	}
	(void) dbuf_read(db, NULL,
	DB_RF_MUST_SUCCEED \| DB_RF_NOPREFETCH \| DB_RF_HAVESTRUCT);
	dbuf_rele(db, FTAG);
	}

	dpa->dpa_curlevel--;
	uint64_t nextblkid = dpa->dpa_zb.zb_blkid >>
	(dpa->dpa_epbs * (dpa->dpa_curlevel - dpa->dpa_zb.zb_level));
	blkptr_t bp = ((blkptr_t )abuf->b_data) +
	P2PHASE(nextblkid, 1ULL << dpa->dpa_epbs);

	ASSERT(!BP_IS_REDACTED(bp) \|\|
	dsl_dataset_feature_is_active(
	dpa->dpa_dnode->dn_objset->os_dsl_dataset,
	SPA_FEATURE_REDACTED_DATASETS));
	if (BP_IS_HOLE(bp) \|\| BP_IS_REDACTED(bp)) {
	dbuf_prefetch_fini(dpa, B_TRUE);
	} else if (dpa->dpa_curlevel == dpa->dpa_zb.zb_level) {
	ASSERT3U(nextblkid, ==, dpa->dpa_zb.zb_blkid);
	dbuf_issue_final_prefetch(dpa, bp);
	} else {
	arc_flags_t iter_aflags = ARC_FLAG_NOWAIT;
	zbookmark_phys_t zb;

	/* flag if L2ARC eligible, l2arc_noprefetch then decides */
	if (dpa->dpa_aflags & ARC_FLAG_L2CACHE)
	iter_aflags \|= ARC_FLAG_L2CACHE;

	ASSERT3U(dpa->dpa_curlevel, ==, BP_GET_LEVEL(bp));

	SET_BOOKMARK(&zb, dpa->dpa_zb.zb_objset,
	dpa->dpa_zb.zb_object, dpa->dpa_curlevel, nextblkid);

	(void) arc_read(dpa->dpa_zio, dpa->dpa_spa,
	bp, dbuf_prefetch_indirect_done, dpa, dpa->dpa_prio,
	ZIO_FLAG_CANFAIL \| ZIO_FLAG_SPECULATIVE,
	&iter_aflags, &zb);
	}

	arc_buf_destroy(abuf, private);
	}

	/*
	* Issue prefetch reads for the given block on the given level. If the indirect
	* blocks above that block are not in memory, we will read them in
	* asynchronously. As a result, this call never blocks waiting for a read to
	* complete. Note that the prefetch might fail if the dataset is encrypted and
	* the encryption key is unmapped before the IO completes.
	*/
	int
	dbuf_prefetch_impl(dnode_t *dn, int64_t level, uint64_t blkid,
	zio_priority_t prio, arc_flags_t aflags, dbuf_prefetch_fn cb,
	void *arg)
	{
	blkptr_t bp;
	int epbs, nlevels, curlevel;
	uint64_t curblkid;

	ASSERT(blkid != DMU_BONUS_BLKID);
	ASSERT(RW_LOCK_HELD(&dn->dn_struct_rwlock));

	if (blkid > dn->dn_maxblkid)
	goto no_issue;

	if (level == 0 && dnode_block_freed(dn, blkid))
	goto no_issue;

	/*
	* This dnode hasn't been written to disk yet, so there's nothing to
	* prefetch.
	*/
	nlevels = dn->dn_phys->dn_nlevels;
	if (level >= nlevels \|\| dn->dn_phys->dn_nblkptr == 0)
	goto no_issue;

	epbs = dn->dn_phys->dn_indblkshift - SPA_BLKPTRSHIFT;
	if (dn->dn_phys->dn_maxblkid < blkid << (epbs * level))
	goto no_issue;

	dmu_buf_impl_t *db = dbuf_find(dn->dn_objset, dn->dn_object,
	level, blkid);
	if (db != NULL) {
	mutex_exit(&db->db_mtx);
	/*
	* This dbuf already exists. It is either CACHED, or
	* (we assume) about to be read or filled.
	*/
	goto no_issue;
	}

	/*
	* Find the closest ancestor (indirect block) of the target block
	* that is present in the cache. In this indirect block, we will
	* find the bp that is at curlevel, curblkid.
	*/
	curlevel = level;
	curblkid = blkid;
	while (curlevel < nlevels - 1) {
	int parent_level = curlevel + 1;
	uint64_t parent_blkid = curblkid >> epbs;
	dmu_buf_impl_t *db;

	if (dbuf_hold_impl(dn, parent_level, parent_blkid,
	FALSE, TRUE, FTAG, &db) == 0) {
	blkptr_t *bpp = db->db_buf->b_data;
	bp = bpp[P2PHASE(curblkid, 1 << epbs)];
	dbuf_rele(db, FTAG);
	break;
	}

	curlevel = parent_level;
	curblkid = parent_blkid;
	}

	if (curlevel == nlevels - 1) {
	/* No cached indirect blocks found. */
	ASSERT3U(curblkid, <, dn->dn_phys->dn_nblkptr);
	bp = dn->dn_phys->dn_blkptr[curblkid];
	}
	ASSERT(!BP_IS_REDACTED(&bp) \|\|
	dsl_dataset_feature_is_active(dn->dn_objset->os_dsl_dataset,
	SPA_FEATURE_REDACTED_DATASETS));
	if (BP_IS_HOLE(&bp) \|\| BP_IS_REDACTED(&bp))
	goto no_issue;

	ASSERT3U(curlevel, ==, BP_GET_LEVEL(&bp));

	zio_t *pio = zio_root(dmu_objset_spa(dn->dn_objset), NULL, NULL,
	ZIO_FLAG_CANFAIL);

	dbuf_prefetch_arg_t dpa = kmem_zalloc(sizeof (dpa), KM_SLEEP);
	dsl_dataset_t *ds = dn->dn_objset->os_dsl_dataset;
	SET_BOOKMARK(&dpa->dpa_zb, ds != NULL ? ds->ds_object : DMU_META_OBJSET,
	dn->dn_object, level, blkid);
	dpa->dpa_curlevel = curlevel;
	dpa->dpa_prio = prio;
	dpa->dpa_aflags = aflags;
	dpa->dpa_spa = dn->dn_objset->os_spa;
	dpa->dpa_dnode = dn;
	dpa->dpa_epbs = epbs;
	dpa->dpa_zio = pio;
	dpa->dpa_cb = cb;
	dpa->dpa_arg = arg;

	/* flag if L2ARC eligible, l2arc_noprefetch then decides */
	if (DNODE_LEVEL_IS_L2CACHEABLE(dn, level))
	dpa->dpa_aflags \|= ARC_FLAG_L2CACHE;

	/*
	* If we have the indirect just above us, no need to do the asynchronous
	* prefetch chain; we'll just run the last step ourselves. If we're at
	* a higher level, though, we want to issue the prefetches for all the
	* indirect blocks asynchronously, so we can go on with whatever we were
	* doing.
	*/
	if (curlevel == level) {
	ASSERT3U(curblkid, ==, blkid);
	dbuf_issue_final_prefetch(dpa, &bp);
	} else {
	arc_flags_t iter_aflags = ARC_FLAG_NOWAIT;
	zbookmark_phys_t zb;

	/* flag if L2ARC eligible, l2arc_noprefetch then decides */
	if (DNODE_LEVEL_IS_L2CACHEABLE(dn, level))
	iter_aflags \|= ARC_FLAG_L2CACHE;

	SET_BOOKMARK(&zb, ds != NULL ? ds->ds_object : DMU_META_OBJSET,
	dn->dn_object, curlevel, curblkid);
	(void) arc_read(dpa->dpa_zio, dpa->dpa_spa,
	&bp, dbuf_prefetch_indirect_done, dpa, prio,
	ZIO_FLAG_CANFAIL \| ZIO_FLAG_SPECULATIVE,
	&iter_aflags, &zb);
	}
	/*
	* We use pio here instead of dpa_zio since it's possible that
	* dpa may have already been freed.
	*/
	zio_nowait(pio);
	return (1);
	no_issue:
	if (cb != NULL)
	cb(arg, B_FALSE);
	return (0);
	}

	int
	dbuf_prefetch(dnode_t *dn, int64_t level, uint64_t blkid, zio_priority_t prio,
	arc_flags_t aflags)
	{

	return (dbuf_prefetch_impl(dn, level, blkid, prio, aflags, NULL, NULL));
	}

	/*
	* Helper function for dbuf_hold_impl() to copy a buffer. Handles
	* the case of encrypted, compressed and uncompressed buffers by
	* allocating the new buffer, respectively, with arc_alloc_raw_buf(),
	* arc_alloc_compressed_buf() or arc_alloc_buf().*
	*
	* NOTE: Declared noinline to avoid stack bloat in dbuf_hold_impl().
	*/
	noinline static void
	dbuf_hold_copy(dnode_t dn, dmu_buf_impl_t db)
	{
	dbuf_dirty_record_t *dr = db->db_data_pending;
	arc_buf_t newdata, data = dr->dt.dl.dr_data;

	newdata = dbuf_alloc_arcbuf_from_arcbuf(db, data);
	dbuf_set_data(db, newdata);
	rw_enter(&db->db_rwlock, RW_WRITER);
	bcopy(data->b_data, db->db.db_data, arc_buf_size(data));
	rw_exit(&db->db_rwlock);
	}

	/*
	* Returns with db_holds incremented, and db_mtx not held.
	* Note: dn_struct_rwlock must be held.
	*/
	int
	dbuf_hold_impl(dnode_t *dn, uint8_t level, uint64_t blkid,
	boolean_t fail_sparse, boolean_t fail_uncached,
	void tag, dmu_buf_impl_t *dbp)
	{
	dmu_buf_impl_t db, parent = NULL;

	/* If the pool has been created, verify the tx_sync_lock is not held */
	spa_t *spa = dn->dn_objset->os_spa;
	dsl_pool_t *dp = spa->spa_dsl_pool;
	if (dp != NULL) {
	ASSERT(!MUTEX_HELD(&dp->dp_tx.tx_sync_lock));
	}

	ASSERT(blkid != DMU_BONUS_BLKID);
	ASSERT(RW_LOCK_HELD(&dn->dn_struct_rwlock));
	ASSERT3U(dn->dn_nlevels, >, level);

	*dbp = NULL;

	/* dbuf_find() returns with db_mtx held */
	db = dbuf_find(dn->dn_objset, dn->dn_object, level, blkid);

	if (db == NULL) {
	blkptr_t *bp = NULL;
	int err;

	if (fail_uncached)
	return (SET_ERROR(ENOENT));

	ASSERT3P(parent, ==, NULL);
	err = dbuf_findbp(dn, level, blkid, fail_sparse, &parent, &bp);
	if (fail_sparse) {
	if (err == 0 && bp && BP_IS_HOLE(bp))
	err = SET_ERROR(ENOENT);
	if (err) {
	if (parent)
	dbuf_rele(parent, NULL);
	return (err);
	}
	}
	if (err && err != ENOENT)
	return (err);
	db = dbuf_create(dn, level, blkid, parent, bp);
	}

	if (fail_uncached && db->db_state != DB_CACHED) {
	mutex_exit(&db->db_mtx);
	return (SET_ERROR(ENOENT));
	}

	if (db->db_buf != NULL) {
	arc_buf_access(db->db_buf);
	ASSERT3P(db->db.db_data, ==, db->db_buf->b_data);
	}

	ASSERT(db->db_buf == NULL \|\| arc_referenced(db->db_buf));

	/*
	* If this buffer is currently syncing out, and we are
	* still referencing it from db_data, we need to make a copy
	* of it in case we decide we want to dirty it again in this txg.
	*/
	if (db->db_level == 0 && db->db_blkid != DMU_BONUS_BLKID &&
	dn->dn_object != DMU_META_DNODE_OBJECT &&
	db->db_state == DB_CACHED && db->db_data_pending) {
	dbuf_dirty_record_t *dr = db->db_data_pending;
	if (dr->dt.dl.dr_data == db->db_buf)
	dbuf_hold_copy(dn, db);
	}

	if (multilist_link_active(&db->db_cache_link)) {
	ASSERT(zfs_refcount_is_zero(&db->db_holds));
	ASSERT(db->db_caching_status == DB_DBUF_CACHE \|\|
	db->db_caching_status == DB_DBUF_METADATA_CACHE);

	- multilist_remove(dbuf_caches[db->db_caching_status].cache, db);
	+ multilist_remove(&dbuf_caches[db->db_caching_status].cache, db);
	(void) zfs_refcount_remove_many(
	&dbuf_caches[db->db_caching_status].size,
	db->db.db_size, db);

	if (db->db_caching_status == DB_DBUF_METADATA_CACHE) {
	DBUF_STAT_BUMPDOWN(metadata_cache_count);
	} else {
	DBUF_STAT_BUMPDOWN(cache_levels[db->db_level]);
	DBUF_STAT_BUMPDOWN(cache_count);
	DBUF_STAT_DECR(cache_levels_bytes[db->db_level],
	db->db.db_size);
	}
	db->db_caching_status = DB_NO_CACHE;
	}
	(void) zfs_refcount_add(&db->db_holds, tag);
	DBUF_VERIFY(db);
	mutex_exit(&db->db_mtx);

	/* NOTE: we can't rele the parent until after we drop the db_mtx */
	if (parent)
	dbuf_rele(parent, NULL);

	ASSERT3P(DB_DNODE(db), ==, dn);
	ASSERT3U(db->db_blkid, ==, blkid);
	ASSERT3U(db->db_level, ==, level);
	*dbp = db;

	return (0);
	}

	dmu_buf_impl_t *
	dbuf_hold(dnode_t dn, uint64_t blkid, void tag)
	{
	return (dbuf_hold_level(dn, 0, blkid, tag));
	}

	dmu_buf_impl_t *
	dbuf_hold_level(dnode_t dn, int level, uint64_t blkid, void tag)
	{
	dmu_buf_impl_t *db;
	int err = dbuf_hold_impl(dn, level, blkid, FALSE, FALSE, tag, &db);
	return (err ? NULL : db);
	}

	void
	dbuf_create_bonus(dnode_t *dn)
	{
	ASSERT(RW_WRITE_HELD(&dn->dn_struct_rwlock));

	ASSERT(dn->dn_bonus == NULL);
	dn->dn_bonus = dbuf_create(dn, 0, DMU_BONUS_BLKID, dn->dn_dbuf, NULL);
	}

	int
	dbuf_spill_set_blksz(dmu_buf_t db_fake, uint64_t blksz, dmu_tx_t tx)
	{
	dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;

	if (db->db_blkid != DMU_SPILL_BLKID)
	return (SET_ERROR(ENOTSUP));
	if (blksz == 0)
	blksz = SPA_MINBLOCKSIZE;
	ASSERT3U(blksz, <=, spa_maxblocksize(dmu_objset_spa(db->db_objset)));
	blksz = P2ROUNDUP(blksz, SPA_MINBLOCKSIZE);

	dbuf_new_size(db, blksz, tx);

	return (0);
	}

	void
	dbuf_rm_spill(dnode_t dn, dmu_tx_t tx)
	{
	dbuf_free_range(dn, DMU_SPILL_BLKID, DMU_SPILL_BLKID, tx);
	}

	#pragma weak dmu_buf_add_ref = dbuf_add_ref
	void
	dbuf_add_ref(dmu_buf_impl_t db, void tag)
	{
	int64_t holds = zfs_refcount_add(&db->db_holds, tag);
	VERIFY3S(holds, >, 1);
	}

	#pragma weak dmu_buf_try_add_ref = dbuf_try_add_ref
	boolean_t
	dbuf_try_add_ref(dmu_buf_t db_fake, objset_t os, uint64_t obj, uint64_t blkid,
	void *tag)
	{
	dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;
	dmu_buf_impl_t *found_db;
	boolean_t result = B_FALSE;

	if (blkid == DMU_BONUS_BLKID)
	found_db = dbuf_find_bonus(os, obj);
	else
	found_db = dbuf_find(os, obj, 0, blkid);

	if (found_db != NULL) {
	if (db == found_db && dbuf_refcount(db) > db->db_dirtycnt) {
	(void) zfs_refcount_add(&db->db_holds, tag);
	result = B_TRUE;
	}
	mutex_exit(&found_db->db_mtx);
	}
	return (result);
	}

	/*
	* If you call dbuf_rele() you had better not be referencing the dnode handle
	* unless you have some other direct or indirect hold on the dnode. (An indirect
	* hold is a hold on one of the dnode's dbufs, including the bonus buffer.)
	* Without that, the dbuf_rele() could lead to a dnode_rele() followed by the
	* dnode's parent dbuf evicting its dnode handles.
	*/
	void
	dbuf_rele(dmu_buf_impl_t db, void tag)
	{
	mutex_enter(&db->db_mtx);
	dbuf_rele_and_unlock(db, tag, B_FALSE);
	}

	void
	dmu_buf_rele(dmu_buf_t db, void tag)
	{
	dbuf_rele((dmu_buf_impl_t *)db, tag);
	}

	/*
	* dbuf_rele() for an already-locked dbuf. This is necessary to allow
	* db_dirtycnt and db_holds to be updated atomically. The 'evicting'
	* argument should be set if we are already in the dbuf-evicting code
	* path, in which case we don't want to recursively evict. This allows us to
	* avoid deeply nested stacks that would have a call flow similar to this:
	*
	* dbuf_rele()-->dbuf_rele_and_unlock()-->dbuf_evict_notify()
	* ^ \|
	* \| \|
	* +-----dbuf_destroy()<--dbuf_evict_one()<--------+
	*
	*/
	void
	dbuf_rele_and_unlock(dmu_buf_impl_t db, void tag, boolean_t evicting)
	{
	int64_t holds;
	uint64_t size;

	ASSERT(MUTEX_HELD(&db->db_mtx));
	DBUF_VERIFY(db);

	/*
	* Remove the reference to the dbuf before removing its hold on the
	* dnode so we can guarantee in dnode_move() that a referenced bonus
	* buffer has a corresponding dnode hold.
	*/
	holds = zfs_refcount_remove(&db->db_holds, tag);
	ASSERT(holds >= 0);

	/*
	* We can't freeze indirects if there is a possibility that they
	* may be modified in the current syncing context.
	*/
	if (db->db_buf != NULL &&
	holds == (db->db_level == 0 ? db->db_dirtycnt : 0)) {
	arc_buf_freeze(db->db_buf);
	}

	if (holds == db->db_dirtycnt &&
	db->db_level == 0 && db->db_user_immediate_evict)
	dbuf_evict_user(db);

	if (holds == 0) {
	if (db->db_blkid == DMU_BONUS_BLKID) {
	dnode_t *dn;
	boolean_t evict_dbuf = db->db_pending_evict;

	/*
	* If the dnode moves here, we cannot cross this
	* barrier until the move completes.
	*/
	DB_DNODE_ENTER(db);

	dn = DB_DNODE(db);
	atomic_dec_32(&dn->dn_dbufs_count);

	/*
	* Decrementing the dbuf count means that the bonus
	* buffer's dnode hold is no longer discounted in
	* dnode_move(). The dnode cannot move until after
	* the dnode_rele() below.
	*/
	DB_DNODE_EXIT(db);

	/*
	* Do not reference db after its lock is dropped.
	* Another thread may evict it.
	*/
	mutex_exit(&db->db_mtx);

	if (evict_dbuf)
	dnode_evict_bonus(dn);

	dnode_rele(dn, db);
	} else if (db->db_buf == NULL) {
	/*
	* This is a special case: we never associated this
	* dbuf with any data allocated from the ARC.
	*/
	ASSERT(db->db_state == DB_UNCACHED \|\|
	db->db_state == DB_NOFILL);
	dbuf_destroy(db);
	} else if (arc_released(db->db_buf)) {
	/*
	* This dbuf has anonymous data associated with it.
	*/
	dbuf_destroy(db);
	} else {
	boolean_t do_arc_evict = B_FALSE;
	blkptr_t bp;
	spa_t *spa = dmu_objset_spa(db->db_objset);

	if (!DBUF_IS_CACHEABLE(db) &&
	db->db_blkptr != NULL &&
	!BP_IS_HOLE(db->db_blkptr) &&
	!BP_IS_EMBEDDED(db->db_blkptr)) {
	do_arc_evict = B_TRUE;
	bp = *db->db_blkptr;
	}

	if (!DBUF_IS_CACHEABLE(db) \|\|
	db->db_pending_evict) {
	dbuf_destroy(db);
	} else if (!multilist_link_active(&db->db_cache_link)) {
	ASSERT3U(db->db_caching_status, ==,
	DB_NO_CACHE);

	dbuf_cached_state_t dcs =
	dbuf_include_in_metadata_cache(db) ?
	DB_DBUF_METADATA_CACHE : DB_DBUF_CACHE;
	db->db_caching_status = dcs;

	- multilist_insert(dbuf_caches[dcs].cache, db);
	+ multilist_insert(&dbuf_caches[dcs].cache, db);
	size = zfs_refcount_add_many(
	&dbuf_caches[dcs].size,
	db->db.db_size, db);

	if (dcs == DB_DBUF_METADATA_CACHE) {
	DBUF_STAT_BUMP(metadata_cache_count);
	DBUF_STAT_MAX(
	metadata_cache_size_bytes_max,
	size);
	} else {
	DBUF_STAT_BUMP(
	cache_levels[db->db_level]);
	DBUF_STAT_BUMP(cache_count);
	DBUF_STAT_INCR(
	cache_levels_bytes[db->db_level],
	db->db.db_size);
	DBUF_STAT_MAX(cache_size_bytes_max,
	size);
	}
	mutex_exit(&db->db_mtx);

	if (dcs == DB_DBUF_CACHE && !evicting)
	dbuf_evict_notify(size);
	}

	if (do_arc_evict)
	arc_freed(spa, &bp);
	}
	} else {
	mutex_exit(&db->db_mtx);
	}

	}

	#pragma weak dmu_buf_refcount = dbuf_refcount
	uint64_t
	dbuf_refcount(dmu_buf_impl_t *db)
	{
	return (zfs_refcount_count(&db->db_holds));
	}

	uint64_t
	dmu_buf_user_refcount(dmu_buf_t *db_fake)
	{
	uint64_t holds;
	dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;

	mutex_enter(&db->db_mtx);
	ASSERT3U(zfs_refcount_count(&db->db_holds), >=, db->db_dirtycnt);
	holds = zfs_refcount_count(&db->db_holds) - db->db_dirtycnt;
	mutex_exit(&db->db_mtx);

	return (holds);
	}

	void *
	dmu_buf_replace_user(dmu_buf_t db_fake, dmu_buf_user_t old_user,
	dmu_buf_user_t *new_user)
	{
	dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;

	mutex_enter(&db->db_mtx);
	dbuf_verify_user(db, DBVU_NOT_EVICTING);
	if (db->db_user == old_user)
	db->db_user = new_user;
	else
	old_user = db->db_user;
	dbuf_verify_user(db, DBVU_NOT_EVICTING);
	mutex_exit(&db->db_mtx);

	return (old_user);
	}

	void *
	dmu_buf_set_user(dmu_buf_t db_fake, dmu_buf_user_t user)
	{
	return (dmu_buf_replace_user(db_fake, NULL, user));
	}

	void *
	dmu_buf_set_user_ie(dmu_buf_t db_fake, dmu_buf_user_t user)
	{
	dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;

	db->db_user_immediate_evict = TRUE;
	return (dmu_buf_set_user(db_fake, user));
	}

	void *
	dmu_buf_remove_user(dmu_buf_t db_fake, dmu_buf_user_t user)
	{
	return (dmu_buf_replace_user(db_fake, user, NULL));
	}

	void *
	dmu_buf_get_user(dmu_buf_t *db_fake)
	{
	dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;

	dbuf_verify_user(db, DBVU_NOT_EVICTING);
	return (db->db_user);
	}

	void
	dmu_buf_user_evict_wait()
	{
	taskq_wait(dbu_evict_taskq);
	}

	blkptr_t *
	dmu_buf_get_blkptr(dmu_buf_t *db)
	{
	dmu_buf_impl_t dbi = (dmu_buf_impl_t )db;
	return (dbi->db_blkptr);
	}

	objset_t *
	dmu_buf_get_objset(dmu_buf_t *db)
	{
	dmu_buf_impl_t dbi = (dmu_buf_impl_t )db;
	return (dbi->db_objset);
	}

	dnode_t *
	dmu_buf_dnode_enter(dmu_buf_t *db)
	{
	dmu_buf_impl_t dbi = (dmu_buf_impl_t )db;
	DB_DNODE_ENTER(dbi);
	return (DB_DNODE(dbi));
	}

	void
	dmu_buf_dnode_exit(dmu_buf_t *db)
	{
	dmu_buf_impl_t dbi = (dmu_buf_impl_t )db;
	DB_DNODE_EXIT(dbi);
	}

	static void
	dbuf_check_blkptr(dnode_t dn, dmu_buf_impl_t db)
	{
	/* ASSERT(dmu_tx_is_syncing(tx) */
	ASSERT(MUTEX_HELD(&db->db_mtx));

	if (db->db_blkptr != NULL)
	return;

	if (db->db_blkid == DMU_SPILL_BLKID) {
	db->db_blkptr = DN_SPILL_BLKPTR(dn->dn_phys);
	BP_ZERO(db->db_blkptr);
	return;
	}
	if (db->db_level == dn->dn_phys->dn_nlevels-1) {
	/*
	* This buffer was allocated at a time when there was
	* no available blkptrs from the dnode, or it was
	* inappropriate to hook it in (i.e., nlevels mismatch).
	*/
	ASSERT(db->db_blkid < dn->dn_phys->dn_nblkptr);
	ASSERT(db->db_parent == NULL);
	db->db_parent = dn->dn_dbuf;
	db->db_blkptr = &dn->dn_phys->dn_blkptr[db->db_blkid];
	DBUF_VERIFY(db);
	} else {
	dmu_buf_impl_t *parent = db->db_parent;
	int epbs = dn->dn_phys->dn_indblkshift - SPA_BLKPTRSHIFT;

	ASSERT(dn->dn_phys->dn_nlevels > 1);
	if (parent == NULL) {
	mutex_exit(&db->db_mtx);
	rw_enter(&dn->dn_struct_rwlock, RW_READER);
	parent = dbuf_hold_level(dn, db->db_level + 1,
	db->db_blkid >> epbs, db);
	rw_exit(&dn->dn_struct_rwlock);
	mutex_enter(&db->db_mtx);
	db->db_parent = parent;
	}
	db->db_blkptr = (blkptr_t *)parent->db.db_data +
	(db->db_blkid & ((1ULL << epbs) - 1));
	DBUF_VERIFY(db);
	}
	}

	static void
	dbuf_sync_bonus(dbuf_dirty_record_t dr, dmu_tx_t tx)
	{
	dmu_buf_impl_t *db = dr->dr_dbuf;
	void *data = dr->dt.dl.dr_data;

	ASSERT0(db->db_level);
	ASSERT(MUTEX_HELD(&db->db_mtx));
	ASSERT(db->db_blkid == DMU_BONUS_BLKID);
	ASSERT(data != NULL);

	dnode_t *dn = dr->dr_dnode;
	ASSERT3U(DN_MAX_BONUS_LEN(dn->dn_phys), <=,
	DN_SLOTS_TO_BONUSLEN(dn->dn_phys->dn_extra_slots + 1));
	bcopy(data, DN_BONUS(dn->dn_phys), DN_MAX_BONUS_LEN(dn->dn_phys));

	dbuf_sync_leaf_verify_bonus_dnode(dr);

	dbuf_undirty_bonus(dr);
	dbuf_rele_and_unlock(db, (void *)(uintptr_t)tx->tx_txg, B_FALSE);
	}

	/*
	* When syncing out a blocks of dnodes, adjust the block to deal with
	* encryption. Normally, we make sure the block is decrypted before writing
	* it. If we have crypt params, then we are writing a raw (encrypted) block,
	* from a raw receive. In this case, set the ARC buf's crypt params so
	* that the BP will be filled with the correct byteorder, salt, iv, and mac.
	*/
	static void
	dbuf_prepare_encrypted_dnode_leaf(dbuf_dirty_record_t *dr)
	{
	int err;
	dmu_buf_impl_t *db = dr->dr_dbuf;

	ASSERT(MUTEX_HELD(&db->db_mtx));
	ASSERT3U(db->db.db_object, ==, DMU_META_DNODE_OBJECT);
	ASSERT3U(db->db_level, ==, 0);

	if (!db->db_objset->os_raw_receive && arc_is_encrypted(db->db_buf)) {
	zbookmark_phys_t zb;

	/*
	* Unfortunately, there is currently no mechanism for
	* syncing context to handle decryption errors. An error
	* here is only possible if an attacker maliciously
	* changed a dnode block and updated the associated
	* checksums going up the block tree.
	*/
	SET_BOOKMARK(&zb, dmu_objset_id(db->db_objset),
	db->db.db_object, db->db_level, db->db_blkid);
	err = arc_untransform(db->db_buf, db->db_objset->os_spa,
	&zb, B_TRUE);
	if (err)
	panic("Invalid dnode block MAC");
	} else if (dr->dt.dl.dr_has_raw_params) {
	(void) arc_release(dr->dt.dl.dr_data, db);
	arc_convert_to_raw(dr->dt.dl.dr_data,
	dmu_objset_id(db->db_objset),
	dr->dt.dl.dr_byteorder, DMU_OT_DNODE,
	dr->dt.dl.dr_salt, dr->dt.dl.dr_iv, dr->dt.dl.dr_mac);
	}
	}

	/*
	* dbuf_sync_indirect() is called recursively from dbuf_sync_list() so it
	* is critical the we not allow the compiler to inline this function in to
	* dbuf_sync_list() thereby drastically bloating the stack usage.
	*/
	noinline static void
	dbuf_sync_indirect(dbuf_dirty_record_t dr, dmu_tx_t tx)
	{
	dmu_buf_impl_t *db = dr->dr_dbuf;
	dnode_t *dn = dr->dr_dnode;

	ASSERT(dmu_tx_is_syncing(tx));

	dprintf_dbuf_bp(db, db->db_blkptr, "blkptr=%p", db->db_blkptr);

	mutex_enter(&db->db_mtx);

	ASSERT(db->db_level > 0);
	DBUF_VERIFY(db);

	/* Read the block if it hasn't been read yet. */
	if (db->db_buf == NULL) {
	mutex_exit(&db->db_mtx);
	(void) dbuf_read(db, NULL, DB_RF_MUST_SUCCEED);
	mutex_enter(&db->db_mtx);
	}
	ASSERT3U(db->db_state, ==, DB_CACHED);
	ASSERT(db->db_buf != NULL);

	/* Indirect block size must match what the dnode thinks it is. */
	ASSERT3U(db->db.db_size, ==, 1<<dn->dn_phys->dn_indblkshift);
	dbuf_check_blkptr(dn, db);

	/* Provide the pending dirty record to child dbufs */
	db->db_data_pending = dr;

	mutex_exit(&db->db_mtx);

	dbuf_write(dr, db->db_buf, tx);

	zio_t *zio = dr->dr_zio;
	mutex_enter(&dr->dt.di.dr_mtx);
	dbuf_sync_list(&dr->dt.di.dr_children, db->db_level - 1, tx);
	ASSERT(list_head(&dr->dt.di.dr_children) == NULL);
	mutex_exit(&dr->dt.di.dr_mtx);
	zio_nowait(zio);
	}

	/*
	* Verify that the size of the data in our bonus buffer does not exceed
	* its recorded size.
	*
	* The purpose of this verification is to catch any cases in development
	* where the size of a phys structure (i.e space_map_phys_t) grows and,
	* due to incorrect feature management, older pools expect to read more
	* data even though they didn't actually write it to begin with.
	*
	* For a example, this would catch an error in the feature logic where we
	* open an older pool and we expect to write the space map histogram of
	* a space map with size SPACE_MAP_SIZE_V0.
	*/
	static void
	dbuf_sync_leaf_verify_bonus_dnode(dbuf_dirty_record_t *dr)
	{
	#ifdef ZFS_DEBUG
	dnode_t *dn = dr->dr_dnode;

	/*
	* Encrypted bonus buffers can have data past their bonuslen.
	* Skip the verification of these blocks.
	*/
	if (DMU_OT_IS_ENCRYPTED(dn->dn_bonustype))
	return;

	uint16_t bonuslen = dn->dn_phys->dn_bonuslen;
	uint16_t maxbonuslen = DN_SLOTS_TO_BONUSLEN(dn->dn_num_slots);
	ASSERT3U(bonuslen, <=, maxbonuslen);

	arc_buf_t *datap = dr->dt.dl.dr_data;
	char datap_end = ((char )datap) + bonuslen;
	char datap_max = ((char )datap) + maxbonuslen;

	/* ensure that everything is zero after our data */
	for (; datap_end < datap_max; datap_end++)
	ASSERT(*datap_end == 0);
	#endif
	}

	static blkptr_t *
	dbuf_lightweight_bp(dbuf_dirty_record_t *dr)
	{
	/* This must be a lightweight dirty record. */
	ASSERT3P(dr->dr_dbuf, ==, NULL);
	dnode_t *dn = dr->dr_dnode;

	if (dn->dn_phys->dn_nlevels == 1) {
	VERIFY3U(dr->dt.dll.dr_blkid, <, dn->dn_phys->dn_nblkptr);
	return (&dn->dn_phys->dn_blkptr[dr->dt.dll.dr_blkid]);
	} else {
	dmu_buf_impl_t *parent_db = dr->dr_parent->dr_dbuf;
	int epbs = dn->dn_indblkshift - SPA_BLKPTRSHIFT;
	VERIFY3U(parent_db->db_level, ==, 1);
	VERIFY3P(parent_db->db_dnode_handle->dnh_dnode, ==, dn);
	VERIFY3U(dr->dt.dll.dr_blkid >> epbs, ==, parent_db->db_blkid);
	blkptr_t *bp = parent_db->db.db_data;
	return (&bp[dr->dt.dll.dr_blkid & ((1 << epbs) - 1)]);
	}
	}

	static void
	dbuf_lightweight_ready(zio_t *zio)
	{
	dbuf_dirty_record_t *dr = zio->io_private;
	blkptr_t *bp = zio->io_bp;

	if (zio->io_error != 0)
	return;

	dnode_t *dn = dr->dr_dnode;

	blkptr_t *bp_orig = dbuf_lightweight_bp(dr);
	spa_t *spa = dmu_objset_spa(dn->dn_objset);
	int64_t delta = bp_get_dsize_sync(spa, bp) -
	bp_get_dsize_sync(spa, bp_orig);
	dnode_diduse_space(dn, delta);

	uint64_t blkid = dr->dt.dll.dr_blkid;
	mutex_enter(&dn->dn_mtx);
	if (blkid > dn->dn_phys->dn_maxblkid) {
	ASSERT0(dn->dn_objset->os_raw_receive);
	dn->dn_phys->dn_maxblkid = blkid;
	}
	mutex_exit(&dn->dn_mtx);

	if (!BP_IS_EMBEDDED(bp)) {
	uint64_t fill = BP_IS_HOLE(bp) ? 0 : 1;
	BP_SET_FILL(bp, fill);
	}

	dmu_buf_impl_t *parent_db;
	EQUIV(dr->dr_parent == NULL, dn->dn_phys->dn_nlevels == 1);
	if (dr->dr_parent == NULL) {
	parent_db = dn->dn_dbuf;
	} else {
	parent_db = dr->dr_parent->dr_dbuf;
	}
	rw_enter(&parent_db->db_rwlock, RW_WRITER);
	bp_orig = bp;
	rw_exit(&parent_db->db_rwlock);
	}

	static void
	dbuf_lightweight_physdone(zio_t *zio)
	{
	dbuf_dirty_record_t *dr = zio->io_private;
	dsl_pool_t *dp = spa_get_dsl(zio->io_spa);
	ASSERT3U(dr->dr_txg, ==, zio->io_txg);

	/*
	* The callback will be called io_phys_children times. Retire one
	* portion of our dirty space each time we are called. Any rounding
	* error will be cleaned up by dbuf_lightweight_done().
	*/
	int delta = dr->dr_accounted / zio->io_phys_children;
	dsl_pool_undirty_space(dp, delta, zio->io_txg);
	}

	static void
	dbuf_lightweight_done(zio_t *zio)
	{
	dbuf_dirty_record_t *dr = zio->io_private;

	VERIFY0(zio->io_error);

	objset_t *os = dr->dr_dnode->dn_objset;
	dmu_tx_t *tx = os->os_synctx;

	if (zio->io_flags & (ZIO_FLAG_IO_REWRITE \| ZIO_FLAG_NOPWRITE)) {
	ASSERT(BP_EQUAL(zio->io_bp, &zio->io_bp_orig));
	} else {
	dsl_dataset_t *ds = os->os_dsl_dataset;
	(void) dsl_dataset_block_kill(ds, &zio->io_bp_orig, tx, B_TRUE);
	dsl_dataset_block_born(ds, zio->io_bp, tx);
	}

	/*
	* See comment in dbuf_write_done().
	*/
	if (zio->io_phys_children == 0) {
	dsl_pool_undirty_space(dmu_objset_pool(os),
	dr->dr_accounted, zio->io_txg);
	} else {
	dsl_pool_undirty_space(dmu_objset_pool(os),
	dr->dr_accounted % zio->io_phys_children, zio->io_txg);
	}

	abd_free(dr->dt.dll.dr_abd);
	kmem_free(dr, sizeof (*dr));
	}

	noinline static void
	dbuf_sync_lightweight(dbuf_dirty_record_t dr, dmu_tx_t tx)
	{
	dnode_t *dn = dr->dr_dnode;
	zio_t *pio;
	if (dn->dn_phys->dn_nlevels == 1) {
	pio = dn->dn_zio;
	} else {
	pio = dr->dr_parent->dr_zio;
	}

	zbookmark_phys_t zb = {
	.zb_objset = dmu_objset_id(dn->dn_objset),
	.zb_object = dn->dn_object,
	.zb_level = 0,
	.zb_blkid = dr->dt.dll.dr_blkid,
	};

	/*
	* See comment in dbuf_write(). This is so that zio->io_bp_orig
	* will have the old BP in dbuf_lightweight_done().
	*/
	dr->dr_bp_copy = *dbuf_lightweight_bp(dr);

	dr->dr_zio = zio_write(pio, dmu_objset_spa(dn->dn_objset),
	dmu_tx_get_txg(tx), &dr->dr_bp_copy, dr->dt.dll.dr_abd,
	dn->dn_datablksz, abd_get_size(dr->dt.dll.dr_abd),
	&dr->dt.dll.dr_props, dbuf_lightweight_ready, NULL,
	dbuf_lightweight_physdone, dbuf_lightweight_done, dr,
	ZIO_PRIORITY_ASYNC_WRITE,
	ZIO_FLAG_MUSTSUCCEED \| dr->dt.dll.dr_flags, &zb);

	zio_nowait(dr->dr_zio);
	}

	/*
	* dbuf_sync_leaf() is called recursively from dbuf_sync_list() so it is
	* critical the we not allow the compiler to inline this function in to
	* dbuf_sync_list() thereby drastically bloating the stack usage.
	*/
	noinline static void
	dbuf_sync_leaf(dbuf_dirty_record_t dr, dmu_tx_t tx)
	{
	arc_buf_t **datap = &dr->dt.dl.dr_data;
	dmu_buf_impl_t *db = dr->dr_dbuf;
	dnode_t *dn = dr->dr_dnode;
	objset_t *os;
	uint64_t txg = tx->tx_txg;

	ASSERT(dmu_tx_is_syncing(tx));

	dprintf_dbuf_bp(db, db->db_blkptr, "blkptr=%p", db->db_blkptr);

	mutex_enter(&db->db_mtx);
	/*
	* To be synced, we must be dirtied. But we
	* might have been freed after the dirty.
	*/
	if (db->db_state == DB_UNCACHED) {
	/* This buffer has been freed since it was dirtied */
	ASSERT(db->db.db_data == NULL);
	} else if (db->db_state == DB_FILL) {
	/* This buffer was freed and is now being re-filled */
	ASSERT(db->db.db_data != dr->dt.dl.dr_data);
	} else {
	ASSERT(db->db_state == DB_CACHED \|\| db->db_state == DB_NOFILL);
	}
	DBUF_VERIFY(db);

	if (db->db_blkid == DMU_SPILL_BLKID) {
	mutex_enter(&dn->dn_mtx);
	if (!(dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR)) {
	/*
	* In the previous transaction group, the bonus buffer
	* was entirely used to store the attributes for the
	* dnode which overrode the dn_spill field. However,
	* when adding more attributes to the file a spill
	* block was required to hold the extra attributes.
	*
	* Make sure to clear the garbage left in the dn_spill
	* field from the previous attributes in the bonus
	* buffer. Otherwise, after writing out the spill
	* block to the new allocated dva, it will free
	* the old block pointed to by the invalid dn_spill.
	*/
	db->db_blkptr = NULL;
	}
	dn->dn_phys->dn_flags \|= DNODE_FLAG_SPILL_BLKPTR;
	mutex_exit(&dn->dn_mtx);
	}

	/*
	* If this is a bonus buffer, simply copy the bonus data into the
	* dnode. It will be written out when the dnode is synced (and it
	* will be synced, since it must have been dirty for dbuf_sync to
	* be called).
	*/
	if (db->db_blkid == DMU_BONUS_BLKID) {
	ASSERT(dr->dr_dbuf == db);
	dbuf_sync_bonus(dr, tx);
	return;
	}

	os = dn->dn_objset;

	/*
	* This function may have dropped the db_mtx lock allowing a dmu_sync
	* operation to sneak in. As a result, we need to ensure that we
	* don't check the dr_override_state until we have returned from
	* dbuf_check_blkptr.
	*/
	dbuf_check_blkptr(dn, db);

	/*
	* If this buffer is in the middle of an immediate write,
	* wait for the synchronous IO to complete.
	*/
	while (dr->dt.dl.dr_override_state == DR_IN_DMU_SYNC) {
	ASSERT(dn->dn_object != DMU_META_DNODE_OBJECT);
	cv_wait(&db->db_changed, &db->db_mtx);
	ASSERT(dr->dt.dl.dr_override_state != DR_NOT_OVERRIDDEN);
	}

	/*
	* If this is a dnode block, ensure it is appropriately encrypted
	* or decrypted, depending on what we are writing to it this txg.
	*/
	if (os->os_encrypted && dn->dn_object == DMU_META_DNODE_OBJECT)
	dbuf_prepare_encrypted_dnode_leaf(dr);

	if (db->db_state != DB_NOFILL &&
	dn->dn_object != DMU_META_DNODE_OBJECT &&
	zfs_refcount_count(&db->db_holds) > 1 &&
	dr->dt.dl.dr_override_state != DR_OVERRIDDEN &&
	*datap == db->db_buf) {
	/*
	* If this buffer is currently "in use" (i.e., there
	* are active holds and db_data still references it),
	* then make a copy before we start the write so that
	* any modifications from the open txg will not leak
	* into this write.
	*
	* NOTE: this copy does not need to be made for
	* objects only modified in the syncing context (e.g.
	* DNONE_DNODE blocks).
	*/
	*datap = dbuf_alloc_arcbuf_from_arcbuf(db, db->db_buf);
	bcopy(db->db.db_data, (datap)->b_data, arc_buf_size(datap));
	}
	db->db_data_pending = dr;

	mutex_exit(&db->db_mtx);

	dbuf_write(dr, *datap, tx);

	ASSERT(!list_link_active(&dr->dr_dirty_node));
	if (dn->dn_object == DMU_META_DNODE_OBJECT) {
	list_insert_tail(&dn->dn_dirty_records[txg & TXG_MASK], dr);
	} else {
	zio_nowait(dr->dr_zio);
	}
	}

	void
	dbuf_sync_list(list_t list, int level, dmu_tx_t tx)
	{
	dbuf_dirty_record_t *dr;

	while ((dr = list_head(list))) {
	if (dr->dr_zio != NULL) {
	/*
	* If we find an already initialized zio then we
	* are processing the meta-dnode, and we have finished.
	* The dbufs for all dnodes are put back on the list
	* during processing, so that we can zio_wait()
	* these IOs after initiating all child IOs.
	*/
	ASSERT3U(dr->dr_dbuf->db.db_object, ==,
	DMU_META_DNODE_OBJECT);
	break;
	}
	list_remove(list, dr);
	if (dr->dr_dbuf == NULL) {
	dbuf_sync_lightweight(dr, tx);
	} else {
	if (dr->dr_dbuf->db_blkid != DMU_BONUS_BLKID &&
	dr->dr_dbuf->db_blkid != DMU_SPILL_BLKID) {
	VERIFY3U(dr->dr_dbuf->db_level, ==, level);
	}
	if (dr->dr_dbuf->db_level > 0)
	dbuf_sync_indirect(dr, tx);
	else
	dbuf_sync_leaf(dr, tx);
	}
	}
	}

	/* ARGSUSED */
	static void
	dbuf_write_ready(zio_t zio, arc_buf_t buf, void *vdb)
	{
	dmu_buf_impl_t *db = vdb;
	dnode_t *dn;
	blkptr_t *bp = zio->io_bp;
	blkptr_t *bp_orig = &zio->io_bp_orig;
	spa_t *spa = zio->io_spa;
	int64_t delta;
	uint64_t fill = 0;
	int i;

	ASSERT3P(db->db_blkptr, !=, NULL);
	ASSERT3P(&db->db_data_pending->dr_bp_copy, ==, bp);

	DB_DNODE_ENTER(db);
	dn = DB_DNODE(db);
	delta = bp_get_dsize_sync(spa, bp) - bp_get_dsize_sync(spa, bp_orig);
	dnode_diduse_space(dn, delta - zio->io_prev_space_delta);
	zio->io_prev_space_delta = delta;

	if (bp->blk_birth != 0) {
	ASSERT((db->db_blkid != DMU_SPILL_BLKID &&
	BP_GET_TYPE(bp) == dn->dn_type) \|\|
	(db->db_blkid == DMU_SPILL_BLKID &&
	BP_GET_TYPE(bp) == dn->dn_bonustype) \|\|
	BP_IS_EMBEDDED(bp));
	ASSERT(BP_GET_LEVEL(bp) == db->db_level);
	}

	mutex_enter(&db->db_mtx);

	#ifdef ZFS_DEBUG
	if (db->db_blkid == DMU_SPILL_BLKID) {
	ASSERT(dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR);
	ASSERT(!(BP_IS_HOLE(bp)) &&
	db->db_blkptr == DN_SPILL_BLKPTR(dn->dn_phys));
	}
	#endif

	if (db->db_level == 0) {
	mutex_enter(&dn->dn_mtx);
	if (db->db_blkid > dn->dn_phys->dn_maxblkid &&
	db->db_blkid != DMU_SPILL_BLKID) {
	ASSERT0(db->db_objset->os_raw_receive);
	dn->dn_phys->dn_maxblkid = db->db_blkid;
	}
	mutex_exit(&dn->dn_mtx);

	if (dn->dn_type == DMU_OT_DNODE) {
	i = 0;
	while (i < db->db.db_size) {
	dnode_phys_t *dnp =
	(void )(((char )db->db.db_data) + i);

	i += DNODE_MIN_SIZE;
	if (dnp->dn_type != DMU_OT_NONE) {
	fill++;
	i += dnp->dn_extra_slots *
	DNODE_MIN_SIZE;
	}
	}
	} else {
	if (BP_IS_HOLE(bp)) {
	fill = 0;
	} else {
	fill = 1;
	}
	}
	} else {
	blkptr_t *ibp = db->db.db_data;
	ASSERT3U(db->db.db_size, ==, 1<<dn->dn_phys->dn_indblkshift);
	for (i = db->db.db_size >> SPA_BLKPTRSHIFT; i > 0; i--, ibp++) {
	if (BP_IS_HOLE(ibp))
	continue;
	fill += BP_GET_FILL(ibp);
	}
	}
	DB_DNODE_EXIT(db);

	if (!BP_IS_EMBEDDED(bp))
	BP_SET_FILL(bp, fill);

	mutex_exit(&db->db_mtx);

	db_lock_type_t dblt = dmu_buf_lock_parent(db, RW_WRITER, FTAG);
	db->db_blkptr = bp;
	dmu_buf_unlock_parent(db, dblt, FTAG);
	}

	/* ARGSUSED */
	/*
	* This function gets called just prior to running through the compression
	* stage of the zio pipeline. If we're an indirect block comprised of only
	* holes, then we want this indirect to be compressed away to a hole. In
	* order to do that we must zero out any information about the holes that
	* this indirect points to prior to before we try to compress it.
	*/
	static void
	dbuf_write_children_ready(zio_t zio, arc_buf_t buf, void *vdb)
	{
	dmu_buf_impl_t *db = vdb;
	dnode_t *dn;
	blkptr_t *bp;
	unsigned int epbs, i;

	ASSERT3U(db->db_level, >, 0);
	DB_DNODE_ENTER(db);
	dn = DB_DNODE(db);
	epbs = dn->dn_phys->dn_indblkshift - SPA_BLKPTRSHIFT;
	ASSERT3U(epbs, <, 31);

	/* Determine if all our children are holes */
	for (i = 0, bp = db->db.db_data; i < 1ULL << epbs; i++, bp++) {
	if (!BP_IS_HOLE(bp))
	break;
	}

	/*
	* If all the children are holes, then zero them all out so that
	* we may get compressed away.
	*/
	if (i == 1ULL << epbs) {
	/*
	* We only found holes. Grab the rwlock to prevent
	* anybody from reading the blocks we're about to
	* zero out.
	*/
	rw_enter(&db->db_rwlock, RW_WRITER);
	bzero(db->db.db_data, db->db.db_size);
	rw_exit(&db->db_rwlock);
	}
	DB_DNODE_EXIT(db);
	}

	/*
	* The SPA will call this callback several times for each zio - once
	* for every physical child i/o (zio->io_phys_children times). This
	* allows the DMU to monitor the progress of each logical i/o. For example,
	* there may be 2 copies of an indirect block, or many fragments of a RAID-Z
	* block. There may be a long delay before all copies/fragments are completed,
	* so this callback allows us to retire dirty space gradually, as the physical
	* i/os complete.
	*/
	/* ARGSUSED */
	static void
	dbuf_write_physdone(zio_t zio, arc_buf_t buf, void *arg)
	{
	dmu_buf_impl_t *db = arg;
	objset_t *os = db->db_objset;
	dsl_pool_t *dp = dmu_objset_pool(os);
	dbuf_dirty_record_t *dr;
	int delta = 0;

	dr = db->db_data_pending;
	ASSERT3U(dr->dr_txg, ==, zio->io_txg);

	/*
	* The callback will be called io_phys_children times. Retire one
	* portion of our dirty space each time we are called. Any rounding
	* error will be cleaned up by dbuf_write_done().
	*/
	delta = dr->dr_accounted / zio->io_phys_children;
	dsl_pool_undirty_space(dp, delta, zio->io_txg);
	}

	/* ARGSUSED */
	static void
	dbuf_write_done(zio_t zio, arc_buf_t buf, void *vdb)
	{
	dmu_buf_impl_t *db = vdb;
	blkptr_t *bp_orig = &zio->io_bp_orig;
	blkptr_t *bp = db->db_blkptr;
	objset_t *os = db->db_objset;
	dmu_tx_t *tx = os->os_synctx;

	ASSERT0(zio->io_error);
	ASSERT(db->db_blkptr == bp);

	/*
	* For nopwrites and rewrites we ensure that the bp matches our
	* original and bypass all the accounting.
	*/
	if (zio->io_flags & (ZIO_FLAG_IO_REWRITE \| ZIO_FLAG_NOPWRITE)) {
	ASSERT(BP_EQUAL(bp, bp_orig));
	} else {
	dsl_dataset_t *ds = os->os_dsl_dataset;
	(void) dsl_dataset_block_kill(ds, bp_orig, tx, B_TRUE);
	dsl_dataset_block_born(ds, bp, tx);
	}

	mutex_enter(&db->db_mtx);

	DBUF_VERIFY(db);

	dbuf_dirty_record_t *dr = db->db_data_pending;
	dnode_t *dn = dr->dr_dnode;
	ASSERT(!list_link_active(&dr->dr_dirty_node));
	ASSERT(dr->dr_dbuf == db);
	ASSERT(list_next(&db->db_dirty_records, dr) == NULL);
	list_remove(&db->db_dirty_records, dr);

	#ifdef ZFS_DEBUG
	if (db->db_blkid == DMU_SPILL_BLKID) {
	ASSERT(dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR);
	ASSERT(!(BP_IS_HOLE(db->db_blkptr)) &&
	db->db_blkptr == DN_SPILL_BLKPTR(dn->dn_phys));
	}
	#endif

	if (db->db_level == 0) {
	ASSERT(db->db_blkid != DMU_BONUS_BLKID);
	ASSERT(dr->dt.dl.dr_override_state == DR_NOT_OVERRIDDEN);
	if (db->db_state != DB_NOFILL) {
	if (dr->dt.dl.dr_data != db->db_buf)
	arc_buf_destroy(dr->dt.dl.dr_data, db);
	}
	} else {
	ASSERT(list_head(&dr->dt.di.dr_children) == NULL);
	ASSERT3U(db->db.db_size, ==, 1 << dn->dn_phys->dn_indblkshift);
	if (!BP_IS_HOLE(db->db_blkptr)) {
	int epbs __maybe_unused = dn->dn_phys->dn_indblkshift -
	SPA_BLKPTRSHIFT;
	ASSERT3U(db->db_blkid, <=,
	dn->dn_phys->dn_maxblkid >> (db->db_level * epbs));
	ASSERT3U(BP_GET_LSIZE(db->db_blkptr), ==,
	db->db.db_size);
	}
	mutex_destroy(&dr->dt.di.dr_mtx);
	list_destroy(&dr->dt.di.dr_children);
	}

	cv_broadcast(&db->db_changed);
	ASSERT(db->db_dirtycnt > 0);
	db->db_dirtycnt -= 1;
	db->db_data_pending = NULL;
	dbuf_rele_and_unlock(db, (void *)(uintptr_t)tx->tx_txg, B_FALSE);

	/*
	* If we didn't do a physical write in this ZIO and we
	* still ended up here, it means that the space of the
	* dbuf that we just released (and undirtied) above hasn't
	* been marked as undirtied in the pool's accounting.
	*
	* Thus, we undirty that space in the pool's view of the
	* world here. For physical writes this type of update
	* happens in dbuf_write_physdone().
	*
	* If we did a physical write, cleanup any rounding errors
	* that came up due to writing multiple copies of a block
	* on disk [see dbuf_write_physdone()].
	*/
	if (zio->io_phys_children == 0) {
	dsl_pool_undirty_space(dmu_objset_pool(os),
	dr->dr_accounted, zio->io_txg);
	} else {
	dsl_pool_undirty_space(dmu_objset_pool(os),
	dr->dr_accounted % zio->io_phys_children, zio->io_txg);
	}

	kmem_free(dr, sizeof (dbuf_dirty_record_t));
	}

	static void
	dbuf_write_nofill_ready(zio_t *zio)
	{
	dbuf_write_ready(zio, NULL, zio->io_private);
	}

	static void
	dbuf_write_nofill_done(zio_t *zio)
	{
	dbuf_write_done(zio, NULL, zio->io_private);
	}

	static void
	dbuf_write_override_ready(zio_t *zio)
	{
	dbuf_dirty_record_t *dr = zio->io_private;
	dmu_buf_impl_t *db = dr->dr_dbuf;

	dbuf_write_ready(zio, NULL, db);
	}

	static void
	dbuf_write_override_done(zio_t *zio)
	{
	dbuf_dirty_record_t *dr = zio->io_private;
	dmu_buf_impl_t *db = dr->dr_dbuf;
	blkptr_t *obp = &dr->dt.dl.dr_overridden_by;

	mutex_enter(&db->db_mtx);
	if (!BP_EQUAL(zio->io_bp, obp)) {
	if (!BP_IS_HOLE(obp))
	dsl_free(spa_get_dsl(zio->io_spa), zio->io_txg, obp);
	arc_release(dr->dt.dl.dr_data, db);
	}
	mutex_exit(&db->db_mtx);

	dbuf_write_done(zio, NULL, db);

	if (zio->io_abd != NULL)
	abd_free(zio->io_abd);
	}

	typedef struct dbuf_remap_impl_callback_arg {
	objset_t *drica_os;
	uint64_t drica_blk_birth;
	dmu_tx_t *drica_tx;
	} dbuf_remap_impl_callback_arg_t;

	static void
	dbuf_remap_impl_callback(uint64_t vdev, uint64_t offset, uint64_t size,
	void *arg)
	{
	dbuf_remap_impl_callback_arg_t *drica = arg;
	objset_t *os = drica->drica_os;
	spa_t *spa = dmu_objset_spa(os);
	dmu_tx_t *tx = drica->drica_tx;

	ASSERT(dsl_pool_sync_context(spa_get_dsl(spa)));

	if (os == spa_meta_objset(spa)) {
	spa_vdev_indirect_mark_obsolete(spa, vdev, offset, size, tx);
	} else {
	dsl_dataset_block_remapped(dmu_objset_ds(os), vdev, offset,
	size, drica->drica_blk_birth, tx);
	}
	}

	static void
	dbuf_remap_impl(dnode_t dn, blkptr_t bp, krwlock_t rw, dmu_tx_t tx)
	{
	blkptr_t bp_copy = *bp;
	spa_t *spa = dmu_objset_spa(dn->dn_objset);
	dbuf_remap_impl_callback_arg_t drica;

	ASSERT(dsl_pool_sync_context(spa_get_dsl(spa)));

	drica.drica_os = dn->dn_objset;
	drica.drica_blk_birth = bp->blk_birth;
	drica.drica_tx = tx;
	if (spa_remap_blkptr(spa, &bp_copy, dbuf_remap_impl_callback,
	&drica)) {
	/*
	* If the blkptr being remapped is tracked by a livelist,
	* then we need to make sure the livelist reflects the update.
	* First, cancel out the old blkptr by appending a 'FREE'
	* entry. Next, add an 'ALLOC' to track the new version. This
	* way we avoid trying to free an inaccurate blkptr at delete.
	* Note that embedded blkptrs are not tracked in livelists.
	*/
	if (dn->dn_objset != spa_meta_objset(spa)) {
	dsl_dataset_t *ds = dmu_objset_ds(dn->dn_objset);
	if (dsl_deadlist_is_open(&ds->ds_dir->dd_livelist) &&
	bp->blk_birth > ds->ds_dir->dd_origin_txg) {
	ASSERT(!BP_IS_EMBEDDED(bp));
	ASSERT(dsl_dir_is_clone(ds->ds_dir));
	ASSERT(spa_feature_is_enabled(spa,
	SPA_FEATURE_LIVELIST));
	bplist_append(&ds->ds_dir->dd_pending_frees,
	bp);
	bplist_append(&ds->ds_dir->dd_pending_allocs,
	&bp_copy);
	}
	}

	/*
	* The db_rwlock prevents dbuf_read_impl() from
	* dereferencing the BP while we are changing it. To
	* avoid lock contention, only grab it when we are actually
	* changing the BP.
	*/
	if (rw != NULL)
	rw_enter(rw, RW_WRITER);
	*bp = bp_copy;
	if (rw != NULL)
	rw_exit(rw);
	}
	}

	/*
	* Remap any existing BP's to concrete vdevs, if possible.
	*/
	static void
	dbuf_remap(dnode_t dn, dmu_buf_impl_t db, dmu_tx_t *tx)
	{
	spa_t *spa = dmu_objset_spa(db->db_objset);
	ASSERT(dsl_pool_sync_context(spa_get_dsl(spa)));

	if (!spa_feature_is_active(spa, SPA_FEATURE_DEVICE_REMOVAL))
	return;

	if (db->db_level > 0) {
	blkptr_t *bp = db->db.db_data;
	for (int i = 0; i < db->db.db_size >> SPA_BLKPTRSHIFT; i++) {
	dbuf_remap_impl(dn, &bp[i], &db->db_rwlock, tx);
	}
	} else if (db->db.db_object == DMU_META_DNODE_OBJECT) {
	dnode_phys_t *dnp = db->db.db_data;
	ASSERT3U(db->db_dnode_handle->dnh_dnode->dn_type, ==,
	DMU_OT_DNODE);
	for (int i = 0; i < db->db.db_size >> DNODE_SHIFT;
	i += dnp[i].dn_extra_slots + 1) {
	for (int j = 0; j < dnp[i].dn_nblkptr; j++) {
	krwlock_t *lock = (dn->dn_dbuf == NULL ? NULL :
	&dn->dn_dbuf->db_rwlock);
	dbuf_remap_impl(dn, &dnp[i].dn_blkptr[j], lock,
	tx);
	}
	}
	}
	}


	/* Issue I/O to commit a dirty buffer to disk. */
	static void
	dbuf_write(dbuf_dirty_record_t dr, arc_buf_t data, dmu_tx_t *tx)
	{
	dmu_buf_impl_t *db = dr->dr_dbuf;
	dnode_t *dn = dr->dr_dnode;
	objset_t *os;
	dmu_buf_impl_t *parent = db->db_parent;
	uint64_t txg = tx->tx_txg;
	zbookmark_phys_t zb;
	zio_prop_t zp;
	zio_t pio; / parent I/O */
	int wp_flag = 0;

	ASSERT(dmu_tx_is_syncing(tx));

	os = dn->dn_objset;

	if (db->db_state != DB_NOFILL) {
	if (db->db_level > 0 \|\| dn->dn_type == DMU_OT_DNODE) {
	/*
	* Private object buffers are released here rather
	* than in dbuf_dirty() since they are only modified
	* in the syncing context and we don't want the
	* overhead of making multiple copies of the data.
	*/
	if (BP_IS_HOLE(db->db_blkptr)) {
	arc_buf_thaw(data);
	} else {
	dbuf_release_bp(db);
	}
	dbuf_remap(dn, db, tx);
	}
	}

	if (parent != dn->dn_dbuf) {
	/* Our parent is an indirect block. */
	/* We have a dirty parent that has been scheduled for write. */
	ASSERT(parent && parent->db_data_pending);
	/* Our parent's buffer is one level closer to the dnode. */
	ASSERT(db->db_level == parent->db_level-1);
	/*
	* We're about to modify our parent's db_data by modifying
	* our block pointer, so the parent must be released.
	*/
	ASSERT(arc_released(parent->db_buf));
	pio = parent->db_data_pending->dr_zio;
	} else {
	/* Our parent is the dnode itself. */
	ASSERT((db->db_level == dn->dn_phys->dn_nlevels-1 &&
	db->db_blkid != DMU_SPILL_BLKID) \|\|
	(db->db_blkid == DMU_SPILL_BLKID && db->db_level == 0));
	if (db->db_blkid != DMU_SPILL_BLKID)
	ASSERT3P(db->db_blkptr, ==,
	&dn->dn_phys->dn_blkptr[db->db_blkid]);
	pio = dn->dn_zio;
	}

	ASSERT(db->db_level == 0 \|\| data == db->db_buf);
	ASSERT3U(db->db_blkptr->blk_birth, <=, txg);
	ASSERT(pio);

	SET_BOOKMARK(&zb, os->os_dsl_dataset ?
	os->os_dsl_dataset->ds_object : DMU_META_OBJSET,
	db->db.db_object, db->db_level, db->db_blkid);

	if (db->db_blkid == DMU_SPILL_BLKID)
	wp_flag = WP_SPILL;
	wp_flag \|= (db->db_state == DB_NOFILL) ? WP_NOFILL : 0;

	dmu_write_policy(os, dn, db->db_level, wp_flag, &zp);

	/*
	* We copy the blkptr now (rather than when we instantiate the dirty
	* record), because its value can change between open context and
	* syncing context. We do not need to hold dn_struct_rwlock to read
	* db_blkptr because we are in syncing context.
	*/
	dr->dr_bp_copy = *db->db_blkptr;

	if (db->db_level == 0 &&
	dr->dt.dl.dr_override_state == DR_OVERRIDDEN) {
	/*
	* The BP for this block has been provided by open context
	* (by dmu_sync() or dmu_buf_write_embedded()).
	*/
	abd_t *contents = (data != NULL) ?
	abd_get_from_buf(data->b_data, arc_buf_size(data)) : NULL;

	dr->dr_zio = zio_write(pio, os->os_spa, txg, &dr->dr_bp_copy,
	contents, db->db.db_size, db->db.db_size, &zp,
	dbuf_write_override_ready, NULL, NULL,
	dbuf_write_override_done,
	dr, ZIO_PRIORITY_ASYNC_WRITE, ZIO_FLAG_MUSTSUCCEED, &zb);
	mutex_enter(&db->db_mtx);
	dr->dt.dl.dr_override_state = DR_NOT_OVERRIDDEN;
	zio_write_override(dr->dr_zio, &dr->dt.dl.dr_overridden_by,
	dr->dt.dl.dr_copies, dr->dt.dl.dr_nopwrite);
	mutex_exit(&db->db_mtx);
	} else if (db->db_state == DB_NOFILL) {
	ASSERT(zp.zp_checksum == ZIO_CHECKSUM_OFF \|\|
	zp.zp_checksum == ZIO_CHECKSUM_NOPARITY);
	dr->dr_zio = zio_write(pio, os->os_spa, txg,
	&dr->dr_bp_copy, NULL, db->db.db_size, db->db.db_size, &zp,
	dbuf_write_nofill_ready, NULL, NULL,
	dbuf_write_nofill_done, db,
	ZIO_PRIORITY_ASYNC_WRITE,
	ZIO_FLAG_MUSTSUCCEED \| ZIO_FLAG_NODATA, &zb);
	} else {
	ASSERT(arc_released(data));

	/*
	* For indirect blocks, we want to setup the children
	* ready callback so that we can properly handle an indirect
	* block that only contains holes.
	*/
	arc_write_done_func_t *children_ready_cb = NULL;
	if (db->db_level != 0)
	children_ready_cb = dbuf_write_children_ready;

	dr->dr_zio = arc_write(pio, os->os_spa, txg,
	&dr->dr_bp_copy, data, DBUF_IS_L2CACHEABLE(db),
	&zp, dbuf_write_ready,
	children_ready_cb, dbuf_write_physdone,
	dbuf_write_done, db, ZIO_PRIORITY_ASYNC_WRITE,
	ZIO_FLAG_MUSTSUCCEED, &zb);
	}
	}

	EXPORT_SYMBOL(dbuf_find);
	EXPORT_SYMBOL(dbuf_is_metadata);
	EXPORT_SYMBOL(dbuf_destroy);
	EXPORT_SYMBOL(dbuf_loan_arcbuf);
	EXPORT_SYMBOL(dbuf_whichblock);
	EXPORT_SYMBOL(dbuf_read);
	EXPORT_SYMBOL(dbuf_unoverride);
	EXPORT_SYMBOL(dbuf_free_range);
	EXPORT_SYMBOL(dbuf_new_size);
	EXPORT_SYMBOL(dbuf_release_bp);
	EXPORT_SYMBOL(dbuf_dirty);
	EXPORT_SYMBOL(dmu_buf_set_crypt_params);
	EXPORT_SYMBOL(dmu_buf_will_dirty);
	EXPORT_SYMBOL(dmu_buf_is_dirty);
	EXPORT_SYMBOL(dmu_buf_will_not_fill);
	EXPORT_SYMBOL(dmu_buf_will_fill);
	EXPORT_SYMBOL(dmu_buf_fill_done);
	EXPORT_SYMBOL(dmu_buf_rele);
	EXPORT_SYMBOL(dbuf_assign_arcbuf);
	EXPORT_SYMBOL(dbuf_prefetch);
	EXPORT_SYMBOL(dbuf_hold_impl);
	EXPORT_SYMBOL(dbuf_hold);
	EXPORT_SYMBOL(dbuf_hold_level);
	EXPORT_SYMBOL(dbuf_create_bonus);
	EXPORT_SYMBOL(dbuf_spill_set_blksz);
	EXPORT_SYMBOL(dbuf_rm_spill);
	EXPORT_SYMBOL(dbuf_add_ref);
	EXPORT_SYMBOL(dbuf_rele);
	EXPORT_SYMBOL(dbuf_rele_and_unlock);
	EXPORT_SYMBOL(dbuf_refcount);
	EXPORT_SYMBOL(dbuf_sync_list);
	EXPORT_SYMBOL(dmu_buf_set_user);
	EXPORT_SYMBOL(dmu_buf_set_user_ie);
	EXPORT_SYMBOL(dmu_buf_get_user);
	EXPORT_SYMBOL(dmu_buf_get_blkptr);

	/* BEGIN CSTYLED */
	ZFS_MODULE_PARAM(zfs_dbuf_cache, dbuf_cache_, max_bytes, ULONG, ZMOD_RW,
	"Maximum size in bytes of the dbuf cache.");

	ZFS_MODULE_PARAM(zfs_dbuf_cache, dbuf_cache_, hiwater_pct, UINT, ZMOD_RW,
	"Percentage over dbuf_cache_max_bytes when dbufs must be evicted "
	"directly.");

	ZFS_MODULE_PARAM(zfs_dbuf_cache, dbuf_cache_, lowater_pct, UINT, ZMOD_RW,
	"Percentage below dbuf_cache_max_bytes when the evict thread stops "
	"evicting dbufs.");

	ZFS_MODULE_PARAM(zfs_dbuf, dbuf_, metadata_cache_max_bytes, ULONG, ZMOD_RW,
	"Maximum size in bytes of the dbuf metadata cache.");

	ZFS_MODULE_PARAM(zfs_dbuf, dbuf_, cache_shift, INT, ZMOD_RW,
	"Set the size of the dbuf cache to a log2 fraction of arc size.");

	ZFS_MODULE_PARAM(zfs_dbuf, dbuf_, metadata_cache_shift, INT, ZMOD_RW,
	"Set the size of the dbuf metadata cache to a log2 fraction of arc "
	"size.");
	/* END CSTYLED */
	diff --git a/sys/contrib/openzfs/module/zfs/dmu_objset.c b/sys/contrib/openzfs/module/zfs/dmu_objset.c
	index bfb4adf262d5..8c244dc4c317 100644
	--- a/sys/contrib/openzfs/module/zfs/dmu_objset.c
	+++ b/sys/contrib/openzfs/module/zfs/dmu_objset.c
	@@ -1,3044 +1,3042 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2012, 2020 by Delphix. All rights reserved.
	* Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	* Copyright (c) 2013, Joyent, Inc. All rights reserved.
	* Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
	* Copyright (c) 2015, STRATO AG, Inc. All rights reserved.
	* Copyright (c) 2016 Actifio, Inc. All rights reserved.
	* Copyright 2017 Nexenta Systems, Inc.
	* Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
	* Copyright (c) 2018, loli10K <ezomori.nozomu@gmail.com>. All rights reserved.
	* Copyright (c) 2019, Klara Inc.
	* Copyright (c) 2019, Allan Jude
	*/

	/* Portions Copyright 2010 Robert Milkowski */

	#include <sys/cred.h>
	#include <sys/zfs_context.h>
	#include <sys/dmu_objset.h>
	#include <sys/dsl_dir.h>
	#include <sys/dsl_dataset.h>
	#include <sys/dsl_prop.h>
	#include <sys/dsl_pool.h>
	#include <sys/dsl_synctask.h>
	#include <sys/dsl_deleg.h>
	#include <sys/dnode.h>
	#include <sys/dbuf.h>
	#include <sys/zvol.h>
	#include <sys/dmu_tx.h>
	#include <sys/zap.h>
	#include <sys/zil.h>
	#include <sys/dmu_impl.h>
	#include <sys/zfs_ioctl.h>
	#include <sys/sa.h>
	#include <sys/zfs_onexit.h>
	#include <sys/dsl_destroy.h>
	#include <sys/vdev.h>
	#include <sys/zfeature.h>
	#include <sys/policy.h>
	#include <sys/spa_impl.h>
	#include <sys/dmu_recv.h>
	#include <sys/zfs_project.h>
	#include "zfs_namecheck.h"

	/*
	* Needed to close a window in dnode_move() that allows the objset to be freed
	* before it can be safely accessed.
	*/
	krwlock_t os_lock;

	/*
	* Tunable to overwrite the maximum number of threads for the parallelization
	* of dmu_objset_find_dp, needed to speed up the import of pools with many
	* datasets.
	* Default is 4 times the number of leaf vdevs.
	*/
	int dmu_find_threads = 0;

	/*
	* Backfill lower metadnode objects after this many have been freed.
	* Backfilling negatively impacts object creation rates, so only do it
	* if there are enough holes to fill.
	*/
	int dmu_rescan_dnode_threshold = 1 << DN_MAX_INDBLKSHIFT;

	static char *upgrade_tag = "upgrade_tag";

	static void dmu_objset_find_dp_cb(void *arg);

	static void dmu_objset_upgrade(objset_t *os, dmu_objset_upgrade_cb_t cb);
	static void dmu_objset_upgrade_stop(objset_t *os);

	void
	dmu_objset_init(void)
	{
	rw_init(&os_lock, NULL, RW_DEFAULT, NULL);
	}

	void
	dmu_objset_fini(void)
	{
	rw_destroy(&os_lock);
	}

	spa_t *
	dmu_objset_spa(objset_t *os)
	{
	return (os->os_spa);
	}

	zilog_t *
	dmu_objset_zil(objset_t *os)
	{
	return (os->os_zil);
	}

	dsl_pool_t *
	dmu_objset_pool(objset_t *os)
	{
	dsl_dataset_t *ds;

	if ((ds = os->os_dsl_dataset) != NULL && ds->ds_dir)
	return (ds->ds_dir->dd_pool);
	else
	return (spa_get_dsl(os->os_spa));
	}

	dsl_dataset_t *
	dmu_objset_ds(objset_t *os)
	{
	return (os->os_dsl_dataset);
	}

	dmu_objset_type_t
	dmu_objset_type(objset_t *os)
	{
	return (os->os_phys->os_type);
	}

	void
	dmu_objset_name(objset_t os, char buf)
	{
	dsl_dataset_name(os->os_dsl_dataset, buf);
	}

	uint64_t
	dmu_objset_id(objset_t *os)
	{
	dsl_dataset_t *ds = os->os_dsl_dataset;

	return (ds ? ds->ds_object : 0);
	}

	uint64_t
	dmu_objset_dnodesize(objset_t *os)
	{
	return (os->os_dnodesize);
	}

	zfs_sync_type_t
	dmu_objset_syncprop(objset_t *os)
	{
	return (os->os_sync);
	}

	zfs_logbias_op_t
	dmu_objset_logbias(objset_t *os)
	{
	return (os->os_logbias);
	}

	static void
	checksum_changed_cb(void *arg, uint64_t newval)
	{
	objset_t *os = arg;

	/*
	* Inheritance should have been done by now.
	*/
	ASSERT(newval != ZIO_CHECKSUM_INHERIT);

	os->os_checksum = zio_checksum_select(newval, ZIO_CHECKSUM_ON_VALUE);
	}

	static void
	compression_changed_cb(void *arg, uint64_t newval)
	{
	objset_t *os = arg;

	/*
	* Inheritance and range checking should have been done by now.
	*/
	ASSERT(newval != ZIO_COMPRESS_INHERIT);

	os->os_compress = zio_compress_select(os->os_spa,
	ZIO_COMPRESS_ALGO(newval), ZIO_COMPRESS_ON);
	os->os_complevel = zio_complevel_select(os->os_spa, os->os_compress,
	ZIO_COMPRESS_LEVEL(newval), ZIO_COMPLEVEL_DEFAULT);
	}

	static void
	copies_changed_cb(void *arg, uint64_t newval)
	{
	objset_t *os = arg;

	/*
	* Inheritance and range checking should have been done by now.
	*/
	ASSERT(newval > 0);
	ASSERT(newval <= spa_max_replication(os->os_spa));

	os->os_copies = newval;
	}

	static void
	dedup_changed_cb(void *arg, uint64_t newval)
	{
	objset_t *os = arg;
	spa_t *spa = os->os_spa;
	enum zio_checksum checksum;

	/*
	* Inheritance should have been done by now.
	*/
	ASSERT(newval != ZIO_CHECKSUM_INHERIT);

	checksum = zio_checksum_dedup_select(spa, newval, ZIO_CHECKSUM_OFF);

	os->os_dedup_checksum = checksum & ZIO_CHECKSUM_MASK;
	os->os_dedup_verify = !!(checksum & ZIO_CHECKSUM_VERIFY);
	}

	static void
	primary_cache_changed_cb(void *arg, uint64_t newval)
	{
	objset_t *os = arg;

	/*
	* Inheritance and range checking should have been done by now.
	*/
	ASSERT(newval == ZFS_CACHE_ALL \|\| newval == ZFS_CACHE_NONE \|\|
	newval == ZFS_CACHE_METADATA);

	os->os_primary_cache = newval;
	}

	static void
	secondary_cache_changed_cb(void *arg, uint64_t newval)
	{
	objset_t *os = arg;

	/*
	* Inheritance and range checking should have been done by now.
	*/
	ASSERT(newval == ZFS_CACHE_ALL \|\| newval == ZFS_CACHE_NONE \|\|
	newval == ZFS_CACHE_METADATA);

	os->os_secondary_cache = newval;
	}

	static void
	sync_changed_cb(void *arg, uint64_t newval)
	{
	objset_t *os = arg;

	/*
	* Inheritance and range checking should have been done by now.
	*/
	ASSERT(newval == ZFS_SYNC_STANDARD \|\| newval == ZFS_SYNC_ALWAYS \|\|
	newval == ZFS_SYNC_DISABLED);

	os->os_sync = newval;
	if (os->os_zil)
	zil_set_sync(os->os_zil, newval);
	}

	static void
	redundant_metadata_changed_cb(void *arg, uint64_t newval)
	{
	objset_t *os = arg;

	/*
	* Inheritance and range checking should have been done by now.
	*/
	ASSERT(newval == ZFS_REDUNDANT_METADATA_ALL \|\|
	newval == ZFS_REDUNDANT_METADATA_MOST);

	os->os_redundant_metadata = newval;
	}

	static void
	dnodesize_changed_cb(void *arg, uint64_t newval)
	{
	objset_t *os = arg;

	switch (newval) {
	case ZFS_DNSIZE_LEGACY:
	os->os_dnodesize = DNODE_MIN_SIZE;
	break;
	case ZFS_DNSIZE_AUTO:
	/*
	* Choose a dnode size that will work well for most
	* workloads if the user specified "auto". Future code
	* improvements could dynamically select a dnode size
	* based on observed workload patterns.
	*/
	os->os_dnodesize = DNODE_MIN_SIZE * 2;
	break;
	case ZFS_DNSIZE_1K:
	case ZFS_DNSIZE_2K:
	case ZFS_DNSIZE_4K:
	case ZFS_DNSIZE_8K:
	case ZFS_DNSIZE_16K:
	os->os_dnodesize = newval;
	break;
	}
	}

	static void
	smallblk_changed_cb(void *arg, uint64_t newval)
	{
	objset_t *os = arg;

	/*
	* Inheritance and range checking should have been done by now.
	*/
	ASSERT(newval <= SPA_MAXBLOCKSIZE);
	ASSERT(ISP2(newval));

	os->os_zpl_special_smallblock = newval;
	}

	static void
	logbias_changed_cb(void *arg, uint64_t newval)
	{
	objset_t *os = arg;

	ASSERT(newval == ZFS_LOGBIAS_LATENCY \|\|
	newval == ZFS_LOGBIAS_THROUGHPUT);
	os->os_logbias = newval;
	if (os->os_zil)
	zil_set_logbias(os->os_zil, newval);
	}

	static void
	recordsize_changed_cb(void *arg, uint64_t newval)
	{
	objset_t *os = arg;

	os->os_recordsize = newval;
	}

	void
	dmu_objset_byteswap(void *buf, size_t size)
	{
	objset_phys_t *osp = buf;

	ASSERT(size == OBJSET_PHYS_SIZE_V1 \|\| size == OBJSET_PHYS_SIZE_V2 \|\|
	size == sizeof (objset_phys_t));
	dnode_byteswap(&osp->os_meta_dnode);
	byteswap_uint64_array(&osp->os_zil_header, sizeof (zil_header_t));
	osp->os_type = BSWAP_64(osp->os_type);
	osp->os_flags = BSWAP_64(osp->os_flags);
	if (size >= OBJSET_PHYS_SIZE_V2) {
	dnode_byteswap(&osp->os_userused_dnode);
	dnode_byteswap(&osp->os_groupused_dnode);
	if (size >= sizeof (objset_phys_t))
	dnode_byteswap(&osp->os_projectused_dnode);
	}
	}

	/*
	* The hash is a CRC-based hash of the objset_t pointer and the object number.
	*/
	static uint64_t
	dnode_hash(const objset_t *os, uint64_t obj)
	{
	uintptr_t osv = (uintptr_t)os;
	uint64_t crc = -1ULL;

	ASSERT(zfs_crc64_table[128] == ZFS_CRC64_POLY);
	/*
	* The low 6 bits of the pointer don't have much entropy, because
	* the objset_t is larger than 2^6 bytes long.
	*/
	crc = (crc >> 8) ^ zfs_crc64_table[(crc ^ (osv >> 6)) & 0xFF];
	crc = (crc >> 8) ^ zfs_crc64_table[(crc ^ (obj >> 0)) & 0xFF];
	crc = (crc >> 8) ^ zfs_crc64_table[(crc ^ (obj >> 8)) & 0xFF];
	crc = (crc >> 8) ^ zfs_crc64_table[(crc ^ (obj >> 16)) & 0xFF];

	crc ^= (osv>>14) ^ (obj>>24);

	return (crc);
	}

	static unsigned int
	dnode_multilist_index_func(multilist_t ml, void obj)
	{
	dnode_t *dn = obj;
	return (dnode_hash(dn->dn_objset, dn->dn_object) %
	multilist_get_num_sublists(ml));
	}

	/*
	* Instantiates the objset_t in-memory structure corresponding to the
	* objset_phys_t that's pointed to by the specified blkptr_t.
	*/
	int
	dmu_objset_open_impl(spa_t spa, dsl_dataset_t ds, blkptr_t *bp,
	objset_t **osp)
	{
	objset_t *os;
	int i, err;

	ASSERT(ds == NULL \|\| MUTEX_HELD(&ds->ds_opening_lock));
	ASSERT(!BP_IS_REDACTED(bp));

	/*
	* We need the pool config lock to get properties.
	*/
	ASSERT(ds == NULL \|\| dsl_pool_config_held(ds->ds_dir->dd_pool));

	/*
	* The $ORIGIN dataset (if it exists) doesn't have an associated
	* objset, so there's no reason to open it. The $ORIGIN dataset
	* will not exist on pools older than SPA_VERSION_ORIGIN.
	*/
	if (ds != NULL && spa_get_dsl(spa) != NULL &&
	spa_get_dsl(spa)->dp_origin_snap != NULL) {
	ASSERT3P(ds->ds_dir, !=,
	spa_get_dsl(spa)->dp_origin_snap->ds_dir);
	}

	os = kmem_zalloc(sizeof (objset_t), KM_SLEEP);
	os->os_dsl_dataset = ds;
	os->os_spa = spa;
	os->os_rootbp = bp;
	if (!BP_IS_HOLE(os->os_rootbp)) {
	arc_flags_t aflags = ARC_FLAG_WAIT;
	zbookmark_phys_t zb;
	int size;
	enum zio_flag zio_flags = ZIO_FLAG_CANFAIL;
	SET_BOOKMARK(&zb, ds ? ds->ds_object : DMU_META_OBJSET,
	ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID);

	if (DMU_OS_IS_L2CACHEABLE(os))
	aflags \|= ARC_FLAG_L2CACHE;

	if (ds != NULL && ds->ds_dir->dd_crypto_obj != 0) {
	ASSERT3U(BP_GET_COMPRESS(bp), ==, ZIO_COMPRESS_OFF);
	ASSERT(BP_IS_AUTHENTICATED(bp));
	zio_flags \|= ZIO_FLAG_RAW;
	}

	dprintf_bp(os->os_rootbp, "reading %s", "");
	err = arc_read(NULL, spa, os->os_rootbp,
	arc_getbuf_func, &os->os_phys_buf,
	ZIO_PRIORITY_SYNC_READ, zio_flags, &aflags, &zb);
	if (err != 0) {
	kmem_free(os, sizeof (objset_t));
	/* convert checksum errors into IO errors */
	if (err == ECKSUM)
	err = SET_ERROR(EIO);
	return (err);
	}

	if (spa_version(spa) < SPA_VERSION_USERSPACE)
	size = OBJSET_PHYS_SIZE_V1;
	else if (!spa_feature_is_enabled(spa,
	SPA_FEATURE_PROJECT_QUOTA))
	size = OBJSET_PHYS_SIZE_V2;
	else
	size = sizeof (objset_phys_t);

	/* Increase the blocksize if we are permitted. */
	if (arc_buf_size(os->os_phys_buf) < size) {
	arc_buf_t *buf = arc_alloc_buf(spa, &os->os_phys_buf,
	ARC_BUFC_METADATA, size);
	bzero(buf->b_data, size);
	bcopy(os->os_phys_buf->b_data, buf->b_data,
	arc_buf_size(os->os_phys_buf));
	arc_buf_destroy(os->os_phys_buf, &os->os_phys_buf);
	os->os_phys_buf = buf;
	}

	os->os_phys = os->os_phys_buf->b_data;
	os->os_flags = os->os_phys->os_flags;
	} else {
	int size = spa_version(spa) >= SPA_VERSION_USERSPACE ?
	sizeof (objset_phys_t) : OBJSET_PHYS_SIZE_V1;
	os->os_phys_buf = arc_alloc_buf(spa, &os->os_phys_buf,
	ARC_BUFC_METADATA, size);
	os->os_phys = os->os_phys_buf->b_data;
	bzero(os->os_phys, size);
	}
	/*
	* These properties will be filled in by the logic in zfs_get_zplprop()
	* when they are queried for the first time.
	*/
	os->os_version = OBJSET_PROP_UNINITIALIZED;
	os->os_normalization = OBJSET_PROP_UNINITIALIZED;
	os->os_utf8only = OBJSET_PROP_UNINITIALIZED;
	os->os_casesensitivity = OBJSET_PROP_UNINITIALIZED;

	/*
	* Note: the changed_cb will be called once before the register
	* func returns, thus changing the checksum/compression from the
	* default (fletcher2/off). Snapshots don't need to know about
	* checksum/compression/copies.
	*/
	if (ds != NULL) {
	os->os_encrypted = (ds->ds_dir->dd_crypto_obj != 0);

	err = dsl_prop_register(ds,
	zfs_prop_to_name(ZFS_PROP_PRIMARYCACHE),
	primary_cache_changed_cb, os);
	if (err == 0) {
	err = dsl_prop_register(ds,
	zfs_prop_to_name(ZFS_PROP_SECONDARYCACHE),
	secondary_cache_changed_cb, os);
	}
	if (!ds->ds_is_snapshot) {
	if (err == 0) {
	err = dsl_prop_register(ds,
	zfs_prop_to_name(ZFS_PROP_CHECKSUM),
	checksum_changed_cb, os);
	}
	if (err == 0) {
	err = dsl_prop_register(ds,
	zfs_prop_to_name(ZFS_PROP_COMPRESSION),
	compression_changed_cb, os);
	}
	if (err == 0) {
	err = dsl_prop_register(ds,
	zfs_prop_to_name(ZFS_PROP_COPIES),
	copies_changed_cb, os);
	}
	if (err == 0) {
	err = dsl_prop_register(ds,
	zfs_prop_to_name(ZFS_PROP_DEDUP),
	dedup_changed_cb, os);
	}
	if (err == 0) {
	err = dsl_prop_register(ds,
	zfs_prop_to_name(ZFS_PROP_LOGBIAS),
	logbias_changed_cb, os);
	}
	if (err == 0) {
	err = dsl_prop_register(ds,
	zfs_prop_to_name(ZFS_PROP_SYNC),
	sync_changed_cb, os);
	}
	if (err == 0) {
	err = dsl_prop_register(ds,
	zfs_prop_to_name(
	ZFS_PROP_REDUNDANT_METADATA),
	redundant_metadata_changed_cb, os);
	}
	if (err == 0) {
	err = dsl_prop_register(ds,
	zfs_prop_to_name(ZFS_PROP_RECORDSIZE),
	recordsize_changed_cb, os);
	}
	if (err == 0) {
	err = dsl_prop_register(ds,
	zfs_prop_to_name(ZFS_PROP_DNODESIZE),
	dnodesize_changed_cb, os);
	}
	if (err == 0) {
	err = dsl_prop_register(ds,
	zfs_prop_to_name(
	ZFS_PROP_SPECIAL_SMALL_BLOCKS),
	smallblk_changed_cb, os);
	}
	}
	if (err != 0) {
	arc_buf_destroy(os->os_phys_buf, &os->os_phys_buf);
	kmem_free(os, sizeof (objset_t));
	return (err);
	}
	} else {
	/* It's the meta-objset. */
	os->os_checksum = ZIO_CHECKSUM_FLETCHER_4;
	os->os_compress = ZIO_COMPRESS_ON;
	os->os_complevel = ZIO_COMPLEVEL_DEFAULT;
	os->os_encrypted = B_FALSE;
	os->os_copies = spa_max_replication(spa);
	os->os_dedup_checksum = ZIO_CHECKSUM_OFF;
	os->os_dedup_verify = B_FALSE;
	os->os_logbias = ZFS_LOGBIAS_LATENCY;
	os->os_sync = ZFS_SYNC_STANDARD;
	os->os_primary_cache = ZFS_CACHE_ALL;
	os->os_secondary_cache = ZFS_CACHE_ALL;
	os->os_dnodesize = DNODE_MIN_SIZE;
	}

	if (ds == NULL \|\| !ds->ds_is_snapshot)
	os->os_zil_header = os->os_phys->os_zil_header;
	os->os_zil = zil_alloc(os, &os->os_zil_header);

	for (i = 0; i < TXG_SIZE; i++) {
	- os->os_dirty_dnodes[i] = multilist_create(sizeof (dnode_t),
	+ multilist_create(&os->os_dirty_dnodes[i], sizeof (dnode_t),
	offsetof(dnode_t, dn_dirty_link[i]),
	dnode_multilist_index_func);
	}
	list_create(&os->os_dnodes, sizeof (dnode_t),
	offsetof(dnode_t, dn_link));
	list_create(&os->os_downgraded_dbufs, sizeof (dmu_buf_impl_t),
	offsetof(dmu_buf_impl_t, db_link));

	list_link_init(&os->os_evicting_node);

	mutex_init(&os->os_lock, NULL, MUTEX_DEFAULT, NULL);
	mutex_init(&os->os_userused_lock, NULL, MUTEX_DEFAULT, NULL);
	mutex_init(&os->os_obj_lock, NULL, MUTEX_DEFAULT, NULL);
	mutex_init(&os->os_user_ptr_lock, NULL, MUTEX_DEFAULT, NULL);
	os->os_obj_next_percpu_len = boot_ncpus;
	os->os_obj_next_percpu = kmem_zalloc(os->os_obj_next_percpu_len *
	sizeof (os->os_obj_next_percpu[0]), KM_SLEEP);

	dnode_special_open(os, &os->os_phys->os_meta_dnode,
	DMU_META_DNODE_OBJECT, &os->os_meta_dnode);
	if (OBJSET_BUF_HAS_USERUSED(os->os_phys_buf)) {
	dnode_special_open(os, &os->os_phys->os_userused_dnode,
	DMU_USERUSED_OBJECT, &os->os_userused_dnode);
	dnode_special_open(os, &os->os_phys->os_groupused_dnode,
	DMU_GROUPUSED_OBJECT, &os->os_groupused_dnode);
	if (OBJSET_BUF_HAS_PROJECTUSED(os->os_phys_buf))
	dnode_special_open(os,
	&os->os_phys->os_projectused_dnode,
	DMU_PROJECTUSED_OBJECT, &os->os_projectused_dnode);
	}

	mutex_init(&os->os_upgrade_lock, NULL, MUTEX_DEFAULT, NULL);

	*osp = os;
	return (0);
	}

	int
	dmu_objset_from_ds(dsl_dataset_t ds, objset_t *osp)
	{
	int err = 0;

	/*
	* We need the pool_config lock to manipulate the dsl_dataset_t.
	* Even if the dataset is long-held, we need the pool_config lock
	* to open the objset, as it needs to get properties.
	*/
	ASSERT(dsl_pool_config_held(ds->ds_dir->dd_pool));

	mutex_enter(&ds->ds_opening_lock);
	if (ds->ds_objset == NULL) {
	objset_t *os;
	rrw_enter(&ds->ds_bp_rwlock, RW_READER, FTAG);
	err = dmu_objset_open_impl(dsl_dataset_get_spa(ds),
	ds, dsl_dataset_get_blkptr(ds), &os);
	rrw_exit(&ds->ds_bp_rwlock, FTAG);

	if (err == 0) {
	mutex_enter(&ds->ds_lock);
	ASSERT(ds->ds_objset == NULL);
	ds->ds_objset = os;
	mutex_exit(&ds->ds_lock);
	}
	}
	*osp = ds->ds_objset;
	mutex_exit(&ds->ds_opening_lock);
	return (err);
	}

	/*
	* Holds the pool while the objset is held. Therefore only one objset
	* can be held at a time.
	*/
	int
	dmu_objset_hold_flags(const char name, boolean_t decrypt, void tag,
	objset_t **osp)
	{
	dsl_pool_t *dp;
	dsl_dataset_t *ds;
	int err;
	ds_hold_flags_t flags;

	flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : DS_HOLD_FLAG_NONE;
	err = dsl_pool_hold(name, tag, &dp);
	if (err != 0)
	return (err);
	err = dsl_dataset_hold_flags(dp, name, flags, tag, &ds);
	if (err != 0) {
	dsl_pool_rele(dp, tag);
	return (err);
	}

	err = dmu_objset_from_ds(ds, osp);
	if (err != 0) {
	dsl_dataset_rele(ds, tag);
	dsl_pool_rele(dp, tag);
	}

	return (err);
	}

	int
	dmu_objset_hold(const char name, void tag, objset_t **osp)
	{
	return (dmu_objset_hold_flags(name, B_FALSE, tag, osp));
	}

	static int
	dmu_objset_own_impl(dsl_dataset_t *ds, dmu_objset_type_t type,
	boolean_t readonly, boolean_t decrypt, void tag, objset_t *osp)
	{
	int err;

	err = dmu_objset_from_ds(ds, osp);
	if (err != 0) {
	return (err);
	} else if (type != DMU_OST_ANY && type != (*osp)->os_phys->os_type) {
	return (SET_ERROR(EINVAL));
	} else if (!readonly && dsl_dataset_is_snapshot(ds)) {
	return (SET_ERROR(EROFS));
	} else if (!readonly && decrypt &&
	dsl_dir_incompatible_encryption_version(ds->ds_dir)) {
	return (SET_ERROR(EROFS));
	}

	/* if we are decrypting, we can now check MACs in os->os_phys_buf */
	if (decrypt && arc_is_unauthenticated((*osp)->os_phys_buf)) {
	zbookmark_phys_t zb;

	SET_BOOKMARK(&zb, ds->ds_object, ZB_ROOT_OBJECT,
	ZB_ROOT_LEVEL, ZB_ROOT_BLKID);
	err = arc_untransform((osp)->os_phys_buf, (osp)->os_spa,
	&zb, B_FALSE);
	if (err != 0)
	return (err);

	ASSERT0(arc_is_unauthenticated((*osp)->os_phys_buf));
	}

	return (0);
	}

	/*
	* dsl_pool must not be held when this is called.
	* Upon successful return, there will be a longhold on the dataset,
	* and the dsl_pool will not be held.
	*/
	int
	dmu_objset_own(const char *name, dmu_objset_type_t type,
	boolean_t readonly, boolean_t decrypt, void tag, objset_t *osp)
	{
	dsl_pool_t *dp;
	dsl_dataset_t *ds;
	int err;
	ds_hold_flags_t flags;

	flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : DS_HOLD_FLAG_NONE;
	err = dsl_pool_hold(name, FTAG, &dp);
	if (err != 0)
	return (err);
	err = dsl_dataset_own(dp, name, flags, tag, &ds);
	if (err != 0) {
	dsl_pool_rele(dp, FTAG);
	return (err);
	}
	err = dmu_objset_own_impl(ds, type, readonly, decrypt, tag, osp);
	if (err != 0) {
	dsl_dataset_disown(ds, flags, tag);
	dsl_pool_rele(dp, FTAG);
	return (err);
	}

	/*
	* User accounting requires the dataset to be decrypted and rw.
	* We also don't begin user accounting during claiming to help
	* speed up pool import times and to keep this txg reserved
	* completely for recovery work.
	*/
	if (!readonly && !dp->dp_spa->spa_claiming &&
	(ds->ds_dir->dd_crypto_obj == 0 \|\| decrypt)) {
	if (dmu_objset_userobjspace_upgradable(*osp) \|\|
	dmu_objset_projectquota_upgradable(*osp)) {
	dmu_objset_id_quota_upgrade(*osp);
	} else if (dmu_objset_userused_enabled(*osp)) {
	dmu_objset_userspace_upgrade(*osp);
	}
	}

	dsl_pool_rele(dp, FTAG);
	return (0);
	}

	int
	dmu_objset_own_obj(dsl_pool_t *dp, uint64_t obj, dmu_objset_type_t type,
	boolean_t readonly, boolean_t decrypt, void tag, objset_t *osp)
	{
	dsl_dataset_t *ds;
	int err;
	ds_hold_flags_t flags;

	flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : DS_HOLD_FLAG_NONE;
	err = dsl_dataset_own_obj(dp, obj, flags, tag, &ds);
	if (err != 0)
	return (err);

	err = dmu_objset_own_impl(ds, type, readonly, decrypt, tag, osp);
	if (err != 0) {
	dsl_dataset_disown(ds, flags, tag);
	return (err);
	}

	return (0);
	}

	void
	dmu_objset_rele_flags(objset_t os, boolean_t decrypt, void tag)
	{
	ds_hold_flags_t flags;
	dsl_pool_t *dp = dmu_objset_pool(os);

	flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : DS_HOLD_FLAG_NONE;
	dsl_dataset_rele_flags(os->os_dsl_dataset, flags, tag);
	dsl_pool_rele(dp, tag);
	}

	void
	dmu_objset_rele(objset_t os, void tag)
	{
	dmu_objset_rele_flags(os, B_FALSE, tag);
	}

	/*
	* When we are called, os MUST refer to an objset associated with a dataset
	* that is owned by 'tag'; that is, is held and long held by 'tag' and ds_owner
	* == tag. We will then release and reacquire ownership of the dataset while
	* holding the pool config_rwlock to avoid intervening namespace or ownership
	* changes may occur.
	*
	* This exists solely to accommodate zfs_ioc_userspace_upgrade()'s desire to
	* release the hold on its dataset and acquire a new one on the dataset of the
	* same name so that it can be partially torn down and reconstructed.
	*/
	void
	dmu_objset_refresh_ownership(dsl_dataset_t ds, dsl_dataset_t *newds,
	boolean_t decrypt, void *tag)
	{
	dsl_pool_t *dp;
	char name[ZFS_MAX_DATASET_NAME_LEN];
	ds_hold_flags_t flags;

	flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : DS_HOLD_FLAG_NONE;
	VERIFY3P(ds, !=, NULL);
	VERIFY3P(ds->ds_owner, ==, tag);
	VERIFY(dsl_dataset_long_held(ds));

	dsl_dataset_name(ds, name);
	dp = ds->ds_dir->dd_pool;
	dsl_pool_config_enter(dp, FTAG);
	dsl_dataset_disown(ds, flags, tag);
	VERIFY0(dsl_dataset_own(dp, name, flags, tag, newds));
	dsl_pool_config_exit(dp, FTAG);
	}

	void
	dmu_objset_disown(objset_t os, boolean_t decrypt, void tag)
	{
	ds_hold_flags_t flags;

	flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : DS_HOLD_FLAG_NONE;
	/*
	* Stop upgrading thread
	*/
	dmu_objset_upgrade_stop(os);
	dsl_dataset_disown(os->os_dsl_dataset, flags, tag);
	}

	void
	dmu_objset_evict_dbufs(objset_t *os)
	{
	dnode_t *dn_marker;
	dnode_t *dn;

	dn_marker = kmem_alloc(sizeof (dnode_t), KM_SLEEP);

	mutex_enter(&os->os_lock);
	dn = list_head(&os->os_dnodes);
	while (dn != NULL) {
	/*
	* Skip dnodes without holds. We have to do this dance
	* because dnode_add_ref() only works if there is already a
	* hold. If the dnode has no holds, then it has no dbufs.
	*/
	if (dnode_add_ref(dn, FTAG)) {
	list_insert_after(&os->os_dnodes, dn, dn_marker);
	mutex_exit(&os->os_lock);

	dnode_evict_dbufs(dn);
	dnode_rele(dn, FTAG);

	mutex_enter(&os->os_lock);
	dn = list_next(&os->os_dnodes, dn_marker);
	list_remove(&os->os_dnodes, dn_marker);
	} else {
	dn = list_next(&os->os_dnodes, dn);
	}
	}
	mutex_exit(&os->os_lock);

	kmem_free(dn_marker, sizeof (dnode_t));

	if (DMU_USERUSED_DNODE(os) != NULL) {
	if (DMU_PROJECTUSED_DNODE(os) != NULL)
	dnode_evict_dbufs(DMU_PROJECTUSED_DNODE(os));
	dnode_evict_dbufs(DMU_GROUPUSED_DNODE(os));
	dnode_evict_dbufs(DMU_USERUSED_DNODE(os));
	}
	dnode_evict_dbufs(DMU_META_DNODE(os));
	}

	/*
	* Objset eviction processing is split into into two pieces.
	* The first marks the objset as evicting, evicts any dbufs that
	* have a refcount of zero, and then queues up the objset for the
	* second phase of eviction. Once os->os_dnodes has been cleared by
	* dnode_buf_pageout()->dnode_destroy(), the second phase is executed.
	* The second phase closes the special dnodes, dequeues the objset from
	* the list of those undergoing eviction, and finally frees the objset.
	*
	* NOTE: Due to asynchronous eviction processing (invocation of
	* dnode_buf_pageout()), it is possible for the meta dnode for the
	* objset to have no holds even though os->os_dnodes is not empty.
	*/
	void
	dmu_objset_evict(objset_t *os)
	{
	dsl_dataset_t *ds = os->os_dsl_dataset;

	for (int t = 0; t < TXG_SIZE; t++)
	ASSERT(!dmu_objset_is_dirty(os, t));

	if (ds)
	dsl_prop_unregister_all(ds, os);

	if (os->os_sa)
	sa_tear_down(os);

	dmu_objset_evict_dbufs(os);

	mutex_enter(&os->os_lock);
	spa_evicting_os_register(os->os_spa, os);
	if (list_is_empty(&os->os_dnodes)) {
	mutex_exit(&os->os_lock);
	dmu_objset_evict_done(os);
	} else {
	mutex_exit(&os->os_lock);
	}


	}

	void
	dmu_objset_evict_done(objset_t *os)
	{
	ASSERT3P(list_head(&os->os_dnodes), ==, NULL);

	dnode_special_close(&os->os_meta_dnode);
	if (DMU_USERUSED_DNODE(os)) {
	if (DMU_PROJECTUSED_DNODE(os))
	dnode_special_close(&os->os_projectused_dnode);
	dnode_special_close(&os->os_userused_dnode);
	dnode_special_close(&os->os_groupused_dnode);
	}
	zil_free(os->os_zil);

	arc_buf_destroy(os->os_phys_buf, &os->os_phys_buf);

	/*
	* This is a barrier to prevent the objset from going away in
	* dnode_move() until we can safely ensure that the objset is still in
	* use. We consider the objset valid before the barrier and invalid
	* after the barrier.
	*/
	rw_enter(&os_lock, RW_READER);
	rw_exit(&os_lock);

	kmem_free(os->os_obj_next_percpu,
	os->os_obj_next_percpu_len * sizeof (os->os_obj_next_percpu[0]));

	mutex_destroy(&os->os_lock);
	mutex_destroy(&os->os_userused_lock);
	mutex_destroy(&os->os_obj_lock);
	mutex_destroy(&os->os_user_ptr_lock);
	mutex_destroy(&os->os_upgrade_lock);
	- for (int i = 0; i < TXG_SIZE; i++) {
	- multilist_destroy(os->os_dirty_dnodes[i]);
	- }
	+ for (int i = 0; i < TXG_SIZE; i++)
	+ multilist_destroy(&os->os_dirty_dnodes[i]);
	spa_evicting_os_deregister(os->os_spa, os);
	kmem_free(os, sizeof (objset_t));
	}

	inode_timespec_t
	dmu_objset_snap_cmtime(objset_t *os)
	{
	return (dsl_dir_snap_cmtime(os->os_dsl_dataset->ds_dir));
	}

	objset_t *
	dmu_objset_create_impl_dnstats(spa_t spa, dsl_dataset_t ds, blkptr_t *bp,
	dmu_objset_type_t type, int levels, int blksz, int ibs, dmu_tx_t *tx)
	{
	objset_t *os;
	dnode_t *mdn;

	ASSERT(dmu_tx_is_syncing(tx));

	if (blksz == 0)
	blksz = DNODE_BLOCK_SIZE;
	if (ibs == 0)
	ibs = DN_MAX_INDBLKSHIFT;

	if (ds != NULL)
	VERIFY0(dmu_objset_from_ds(ds, &os));
	else
	VERIFY0(dmu_objset_open_impl(spa, NULL, bp, &os));

	mdn = DMU_META_DNODE(os);

	dnode_allocate(mdn, DMU_OT_DNODE, blksz, ibs, DMU_OT_NONE, 0,
	DNODE_MIN_SLOTS, tx);

	/*
	* We don't want to have to increase the meta-dnode's nlevels
	* later, because then we could do it in quiescing context while
	* we are also accessing it in open context.
	*
	* This precaution is not necessary for the MOS (ds == NULL),
	* because the MOS is only updated in syncing context.
	* This is most fortunate: the MOS is the only objset that
	* needs to be synced multiple times as spa_sync() iterates
	* to convergence, so minimizing its dn_nlevels matters.
	*/
	if (ds != NULL) {
	if (levels == 0) {
	levels = 1;

	/*
	* Determine the number of levels necessary for the
	* meta-dnode to contain DN_MAX_OBJECT dnodes. Note
	* that in order to ensure that we do not overflow
	* 64 bits, there has to be a nlevels that gives us a
	* number of blocks > DN_MAX_OBJECT but < 2^64.
	* Therefore, (mdn->dn_indblkshift - SPA_BLKPTRSHIFT)
	* (10) must be less than (64 - log2(DN_MAX_OBJECT))
	* (16).
	*/
	while ((uint64_t)mdn->dn_nblkptr <<
	(mdn->dn_datablkshift - DNODE_SHIFT + (levels - 1) *
	(mdn->dn_indblkshift - SPA_BLKPTRSHIFT)) <
	DN_MAX_OBJECT)
	levels++;
	}

	mdn->dn_next_nlevels[tx->tx_txg & TXG_MASK] =
	mdn->dn_nlevels = levels;
	}

	ASSERT(type != DMU_OST_NONE);
	ASSERT(type != DMU_OST_ANY);
	ASSERT(type < DMU_OST_NUMTYPES);
	os->os_phys->os_type = type;

	/*
	* Enable user accounting if it is enabled and this is not an
	* encrypted receive.
	*/
	if (dmu_objset_userused_enabled(os) &&
	(!os->os_encrypted \|\| !dmu_objset_is_receiving(os))) {
	os->os_phys->os_flags \|= OBJSET_FLAG_USERACCOUNTING_COMPLETE;
	if (dmu_objset_userobjused_enabled(os)) {
	ds->ds_feature_activation[
	SPA_FEATURE_USEROBJ_ACCOUNTING] = (void *)B_TRUE;
	os->os_phys->os_flags \|=
	OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE;
	}
	if (dmu_objset_projectquota_enabled(os)) {
	ds->ds_feature_activation[
	SPA_FEATURE_PROJECT_QUOTA] = (void *)B_TRUE;
	os->os_phys->os_flags \|=
	OBJSET_FLAG_PROJECTQUOTA_COMPLETE;
	}
	os->os_flags = os->os_phys->os_flags;
	}

	dsl_dataset_dirty(ds, tx);

	return (os);
	}

	/* called from dsl for meta-objset */
	objset_t *
	dmu_objset_create_impl(spa_t spa, dsl_dataset_t ds, blkptr_t *bp,
	dmu_objset_type_t type, dmu_tx_t *tx)
	{
	return (dmu_objset_create_impl_dnstats(spa, ds, bp, type, 0, 0, 0, tx));
	}

	typedef struct dmu_objset_create_arg {
	const char *doca_name;
	cred_t *doca_cred;
	proc_t *doca_proc;
	void (doca_userfunc)(objset_t os, void *arg,
	cred_t cr, dmu_tx_t tx);
	void *doca_userarg;
	dmu_objset_type_t doca_type;
	uint64_t doca_flags;
	dsl_crypto_params_t *doca_dcp;
	} dmu_objset_create_arg_t;

	/ARGSUSED/
	static int
	dmu_objset_create_check(void arg, dmu_tx_t tx)
	{
	dmu_objset_create_arg_t *doca = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	dsl_dir_t *pdd;
	dsl_dataset_t *parentds;
	objset_t *parentos;
	const char *tail;
	int error;

	if (strchr(doca->doca_name, '@') != NULL)
	return (SET_ERROR(EINVAL));

	if (strlen(doca->doca_name) >= ZFS_MAX_DATASET_NAME_LEN)
	return (SET_ERROR(ENAMETOOLONG));

	if (dataset_nestcheck(doca->doca_name) != 0)
	return (SET_ERROR(ENAMETOOLONG));

	error = dsl_dir_hold(dp, doca->doca_name, FTAG, &pdd, &tail);
	if (error != 0)
	return (error);
	if (tail == NULL) {
	dsl_dir_rele(pdd, FTAG);
	return (SET_ERROR(EEXIST));
	}

	error = dmu_objset_create_crypt_check(pdd, doca->doca_dcp, NULL);
	if (error != 0) {
	dsl_dir_rele(pdd, FTAG);
	return (error);
	}

	error = dsl_fs_ss_limit_check(pdd, 1, ZFS_PROP_FILESYSTEM_LIMIT, NULL,
	doca->doca_cred, doca->doca_proc);
	if (error != 0) {
	dsl_dir_rele(pdd, FTAG);
	return (error);
	}

	/* can't create below anything but filesystems (eg. no ZVOLs) */
	error = dsl_dataset_hold_obj(pdd->dd_pool,
	dsl_dir_phys(pdd)->dd_head_dataset_obj, FTAG, &parentds);
	if (error != 0) {
	dsl_dir_rele(pdd, FTAG);
	return (error);
	}
	error = dmu_objset_from_ds(parentds, &parentos);
	if (error != 0) {
	dsl_dataset_rele(parentds, FTAG);
	dsl_dir_rele(pdd, FTAG);
	return (error);
	}
	if (dmu_objset_type(parentos) != DMU_OST_ZFS) {
	dsl_dataset_rele(parentds, FTAG);
	dsl_dir_rele(pdd, FTAG);
	return (SET_ERROR(ZFS_ERR_WRONG_PARENT));
	}
	dsl_dataset_rele(parentds, FTAG);
	dsl_dir_rele(pdd, FTAG);

	return (error);
	}

	static void
	dmu_objset_create_sync(void arg, dmu_tx_t tx)
	{
	dmu_objset_create_arg_t *doca = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	spa_t *spa = dp->dp_spa;
	dsl_dir_t *pdd;
	const char *tail;
	dsl_dataset_t *ds;
	uint64_t obj;
	blkptr_t *bp;
	objset_t *os;
	zio_t *rzio;

	VERIFY0(dsl_dir_hold(dp, doca->doca_name, FTAG, &pdd, &tail));

	obj = dsl_dataset_create_sync(pdd, tail, NULL, doca->doca_flags,
	doca->doca_cred, doca->doca_dcp, tx);

	VERIFY0(dsl_dataset_hold_obj_flags(pdd->dd_pool, obj,
	DS_HOLD_FLAG_DECRYPT, FTAG, &ds));
	rrw_enter(&ds->ds_bp_rwlock, RW_READER, FTAG);
	bp = dsl_dataset_get_blkptr(ds);
	os = dmu_objset_create_impl(spa, ds, bp, doca->doca_type, tx);
	rrw_exit(&ds->ds_bp_rwlock, FTAG);

	if (doca->doca_userfunc != NULL) {
	doca->doca_userfunc(os, doca->doca_userarg,
	doca->doca_cred, tx);
	}

	/*
	* The doca_userfunc() may write out some data that needs to be
	* encrypted if the dataset is encrypted (specifically the root
	* directory). This data must be written out before the encryption
	* key mapping is removed by dsl_dataset_rele_flags(). Force the
	* I/O to occur immediately by invoking the relevant sections of
	* dsl_pool_sync().
	*/
	if (os->os_encrypted) {
	dsl_dataset_t *tmpds = NULL;
	boolean_t need_sync_done = B_FALSE;

	mutex_enter(&ds->ds_lock);
	ds->ds_owner = FTAG;
	mutex_exit(&ds->ds_lock);

	rzio = zio_root(spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED);
	tmpds = txg_list_remove_this(&dp->dp_dirty_datasets, ds,
	tx->tx_txg);
	if (tmpds != NULL) {
	dsl_dataset_sync(ds, rzio, tx);
	need_sync_done = B_TRUE;
	}
	VERIFY0(zio_wait(rzio));

	dmu_objset_sync_done(os, tx);
	taskq_wait(dp->dp_sync_taskq);
	if (txg_list_member(&dp->dp_dirty_datasets, ds, tx->tx_txg)) {
	ASSERT3P(ds->ds_key_mapping, !=, NULL);
	key_mapping_rele(spa, ds->ds_key_mapping, ds);
	}

	rzio = zio_root(spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED);
	tmpds = txg_list_remove_this(&dp->dp_dirty_datasets, ds,
	tx->tx_txg);
	if (tmpds != NULL) {
	dmu_buf_rele(ds->ds_dbuf, ds);
	dsl_dataset_sync(ds, rzio, tx);
	}
	VERIFY0(zio_wait(rzio));

	if (need_sync_done) {
	ASSERT3P(ds->ds_key_mapping, !=, NULL);
	key_mapping_rele(spa, ds->ds_key_mapping, ds);
	dsl_dataset_sync_done(ds, tx);
	}

	mutex_enter(&ds->ds_lock);
	ds->ds_owner = NULL;
	mutex_exit(&ds->ds_lock);
	}

	spa_history_log_internal_ds(ds, "create", tx, " ");

	dsl_dataset_rele_flags(ds, DS_HOLD_FLAG_DECRYPT, FTAG);
	dsl_dir_rele(pdd, FTAG);
	}

	int
	dmu_objset_create(const char *name, dmu_objset_type_t type, uint64_t flags,
	dsl_crypto_params_t dcp, dmu_objset_create_sync_func_t func, void arg)
	{
	dmu_objset_create_arg_t doca;
	dsl_crypto_params_t tmp_dcp = { 0 };

	doca.doca_name = name;
	doca.doca_cred = CRED();
	doca.doca_proc = curproc;
	doca.doca_flags = flags;
	doca.doca_userfunc = func;
	doca.doca_userarg = arg;
	doca.doca_type = type;

	/*
	* Some callers (mostly for testing) do not provide a dcp on their
	* own but various code inside the sync task will require it to be
	* allocated. Rather than adding NULL checks throughout this code
	* or adding dummy dcp's to all of the callers we simply create a
	* dummy one here and use that. This zero dcp will have the same
	* effect as asking for inheritance of all encryption params.
	*/
	doca.doca_dcp = (dcp != NULL) ? dcp : &tmp_dcp;

	int rv = dsl_sync_task(name,
	dmu_objset_create_check, dmu_objset_create_sync, &doca,
	6, ZFS_SPACE_CHECK_NORMAL);

	if (rv == 0)
	zvol_create_minor(name);
	return (rv);
	}

	typedef struct dmu_objset_clone_arg {
	const char *doca_clone;
	const char *doca_origin;
	cred_t *doca_cred;
	proc_t *doca_proc;
	} dmu_objset_clone_arg_t;

	/ARGSUSED/
	static int
	dmu_objset_clone_check(void arg, dmu_tx_t tx)
	{
	dmu_objset_clone_arg_t *doca = arg;
	dsl_dir_t *pdd;
	const char *tail;
	int error;
	dsl_dataset_t *origin;
	dsl_pool_t *dp = dmu_tx_pool(tx);

	if (strchr(doca->doca_clone, '@') != NULL)
	return (SET_ERROR(EINVAL));

	if (strlen(doca->doca_clone) >= ZFS_MAX_DATASET_NAME_LEN)
	return (SET_ERROR(ENAMETOOLONG));

	error = dsl_dir_hold(dp, doca->doca_clone, FTAG, &pdd, &tail);
	if (error != 0)
	return (error);
	if (tail == NULL) {
	dsl_dir_rele(pdd, FTAG);
	return (SET_ERROR(EEXIST));
	}

	error = dsl_fs_ss_limit_check(pdd, 1, ZFS_PROP_FILESYSTEM_LIMIT, NULL,
	doca->doca_cred, doca->doca_proc);
	if (error != 0) {
	dsl_dir_rele(pdd, FTAG);
	return (SET_ERROR(EDQUOT));
	}

	error = dsl_dataset_hold(dp, doca->doca_origin, FTAG, &origin);
	if (error != 0) {
	dsl_dir_rele(pdd, FTAG);
	return (error);
	}

	/* You can only clone snapshots, not the head datasets. */
	if (!origin->ds_is_snapshot) {
	dsl_dataset_rele(origin, FTAG);
	dsl_dir_rele(pdd, FTAG);
	return (SET_ERROR(EINVAL));
	}

	dsl_dataset_rele(origin, FTAG);
	dsl_dir_rele(pdd, FTAG);

	return (0);
	}

	static void
	dmu_objset_clone_sync(void arg, dmu_tx_t tx)
	{
	dmu_objset_clone_arg_t *doca = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	dsl_dir_t *pdd;
	const char *tail;
	dsl_dataset_t origin, ds;
	uint64_t obj;
	char namebuf[ZFS_MAX_DATASET_NAME_LEN];

	VERIFY0(dsl_dir_hold(dp, doca->doca_clone, FTAG, &pdd, &tail));
	VERIFY0(dsl_dataset_hold(dp, doca->doca_origin, FTAG, &origin));

	obj = dsl_dataset_create_sync(pdd, tail, origin, 0,
	doca->doca_cred, NULL, tx);

	VERIFY0(dsl_dataset_hold_obj(pdd->dd_pool, obj, FTAG, &ds));
	dsl_dataset_name(origin, namebuf);
	spa_history_log_internal_ds(ds, "clone", tx,
	"origin=%s (%llu)", namebuf, (u_longlong_t)origin->ds_object);
	dsl_dataset_rele(ds, FTAG);
	dsl_dataset_rele(origin, FTAG);
	dsl_dir_rele(pdd, FTAG);
	}

	int
	dmu_objset_clone(const char clone, const char origin)
	{
	dmu_objset_clone_arg_t doca;

	doca.doca_clone = clone;
	doca.doca_origin = origin;
	doca.doca_cred = CRED();
	doca.doca_proc = curproc;

	int rv = dsl_sync_task(clone,
	dmu_objset_clone_check, dmu_objset_clone_sync, &doca,
	6, ZFS_SPACE_CHECK_NORMAL);

	if (rv == 0)
	zvol_create_minor(clone);

	return (rv);
	}

	int
	dmu_objset_snapshot_one(const char fsname, const char snapname)
	{
	int err;
	char *longsnap = kmem_asprintf("%s@%s", fsname, snapname);
	nvlist_t *snaps = fnvlist_alloc();

	fnvlist_add_boolean(snaps, longsnap);
	kmem_strfree(longsnap);
	err = dsl_dataset_snapshot(snaps, NULL, NULL);
	fnvlist_free(snaps);
	return (err);
	}

	static void
	dmu_objset_upgrade_task_cb(void *data)
	{
	objset_t *os = data;

	mutex_enter(&os->os_upgrade_lock);
	os->os_upgrade_status = EINTR;
	if (!os->os_upgrade_exit) {
	int status;

	mutex_exit(&os->os_upgrade_lock);

	status = os->os_upgrade_cb(os);

	mutex_enter(&os->os_upgrade_lock);

	os->os_upgrade_status = status;
	}
	os->os_upgrade_exit = B_TRUE;
	os->os_upgrade_id = 0;
	mutex_exit(&os->os_upgrade_lock);
	dsl_dataset_long_rele(dmu_objset_ds(os), upgrade_tag);
	}

	static void
	dmu_objset_upgrade(objset_t *os, dmu_objset_upgrade_cb_t cb)
	{
	if (os->os_upgrade_id != 0)
	return;

	ASSERT(dsl_pool_config_held(dmu_objset_pool(os)));
	dsl_dataset_long_hold(dmu_objset_ds(os), upgrade_tag);

	mutex_enter(&os->os_upgrade_lock);
	if (os->os_upgrade_id == 0 && os->os_upgrade_status == 0) {
	os->os_upgrade_exit = B_FALSE;
	os->os_upgrade_cb = cb;
	os->os_upgrade_id = taskq_dispatch(
	os->os_spa->spa_upgrade_taskq,
	dmu_objset_upgrade_task_cb, os, TQ_SLEEP);
	if (os->os_upgrade_id == TASKQID_INVALID) {
	dsl_dataset_long_rele(dmu_objset_ds(os), upgrade_tag);
	os->os_upgrade_status = ENOMEM;
	}
	} else {
	dsl_dataset_long_rele(dmu_objset_ds(os), upgrade_tag);
	}
	mutex_exit(&os->os_upgrade_lock);
	}

	static void
	dmu_objset_upgrade_stop(objset_t *os)
	{
	mutex_enter(&os->os_upgrade_lock);
	os->os_upgrade_exit = B_TRUE;
	if (os->os_upgrade_id != 0) {
	taskqid_t id = os->os_upgrade_id;

	os->os_upgrade_id = 0;
	mutex_exit(&os->os_upgrade_lock);

	if ((taskq_cancel_id(os->os_spa->spa_upgrade_taskq, id)) == 0) {
	dsl_dataset_long_rele(dmu_objset_ds(os), upgrade_tag);
	}
	txg_wait_synced(os->os_spa->spa_dsl_pool, 0);
	} else {
	mutex_exit(&os->os_upgrade_lock);
	}
	}

	static void
	dmu_objset_sync_dnodes(multilist_sublist_t list, dmu_tx_t tx)
	{
	dnode_t *dn;

	while ((dn = multilist_sublist_head(list)) != NULL) {
	ASSERT(dn->dn_object != DMU_META_DNODE_OBJECT);
	ASSERT(dn->dn_dbuf->db_data_pending);
	/*
	* Initialize dn_zio outside dnode_sync() because the
	* meta-dnode needs to set it outside dnode_sync().
	*/
	dn->dn_zio = dn->dn_dbuf->db_data_pending->dr_zio;
	ASSERT(dn->dn_zio);

	ASSERT3U(dn->dn_nlevels, <=, DN_MAX_LEVELS);
	multilist_sublist_remove(list, dn);

	/*
	* See the comment above dnode_rele_task() for an explanation
	* of why this dnode hold is always needed (even when not
	* doing user accounting).
	*/
	- multilist_t *newlist = dn->dn_objset->os_synced_dnodes;
	+ multilist_t *newlist = &dn->dn_objset->os_synced_dnodes;
	(void) dnode_add_ref(dn, newlist);
	multilist_insert(newlist, dn);

	dnode_sync(dn, tx);
	}
	}

	/* ARGSUSED */
	static void
	dmu_objset_write_ready(zio_t zio, arc_buf_t abuf, void *arg)
	{
	blkptr_t *bp = zio->io_bp;
	objset_t *os = arg;
	dnode_phys_t *dnp = &os->os_phys->os_meta_dnode;
	uint64_t fill = 0;

	ASSERT(!BP_IS_EMBEDDED(bp));
	ASSERT3U(BP_GET_TYPE(bp), ==, DMU_OT_OBJSET);
	ASSERT0(BP_GET_LEVEL(bp));

	/*
	* Update rootbp fill count: it should be the number of objects
	* allocated in the object set (not counting the "special"
	* objects that are stored in the objset_phys_t -- the meta
	* dnode and user/group/project accounting objects).
	*/
	for (int i = 0; i < dnp->dn_nblkptr; i++)
	fill += BP_GET_FILL(&dnp->dn_blkptr[i]);

	BP_SET_FILL(bp, fill);

	if (os->os_dsl_dataset != NULL)
	rrw_enter(&os->os_dsl_dataset->ds_bp_rwlock, RW_WRITER, FTAG);
	os->os_rootbp = bp;
	if (os->os_dsl_dataset != NULL)
	rrw_exit(&os->os_dsl_dataset->ds_bp_rwlock, FTAG);
	}

	/* ARGSUSED */
	static void
	dmu_objset_write_done(zio_t zio, arc_buf_t abuf, void *arg)
	{
	blkptr_t *bp = zio->io_bp;
	blkptr_t *bp_orig = &zio->io_bp_orig;
	objset_t *os = arg;

	if (zio->io_flags & ZIO_FLAG_IO_REWRITE) {
	ASSERT(BP_EQUAL(bp, bp_orig));
	} else {
	dsl_dataset_t *ds = os->os_dsl_dataset;
	dmu_tx_t *tx = os->os_synctx;

	(void) dsl_dataset_block_kill(ds, bp_orig, tx, B_TRUE);
	dsl_dataset_block_born(ds, bp, tx);
	}
	kmem_free(bp, sizeof (*bp));
	}

	typedef struct sync_dnodes_arg {
	multilist_t *sda_list;
	int sda_sublist_idx;
	multilist_t *sda_newlist;
	dmu_tx_t *sda_tx;
	} sync_dnodes_arg_t;

	static void
	sync_dnodes_task(void *arg)
	{
	sync_dnodes_arg_t *sda = arg;

	multilist_sublist_t *ms =
	multilist_sublist_lock(sda->sda_list, sda->sda_sublist_idx);

	dmu_objset_sync_dnodes(ms, sda->sda_tx);

	multilist_sublist_unlock(ms);

	kmem_free(sda, sizeof (*sda));
	}


	/* called from dsl */
	void
	dmu_objset_sync(objset_t os, zio_t pio, dmu_tx_t *tx)
	{
	int txgoff;
	zbookmark_phys_t zb;
	zio_prop_t zp;
	zio_t *zio;
	list_t *list;
	dbuf_dirty_record_t *dr;
	int num_sublists;
	multilist_t *ml;
	blkptr_t blkptr_copy = kmem_alloc(sizeof (os->os_rootbp), KM_SLEEP);
	blkptr_copy = os->os_rootbp;

	dprintf_ds(os->os_dsl_dataset, "txg=%llu\n", tx->tx_txg);

	ASSERT(dmu_tx_is_syncing(tx));
	/* XXX the write_done callback should really give us the tx... */
	os->os_synctx = tx;

	if (os->os_dsl_dataset == NULL) {
	/*
	* This is the MOS. If we have upgraded,
	* spa_max_replication() could change, so reset
	* os_copies here.
	*/
	os->os_copies = spa_max_replication(os->os_spa);
	}

	/*
	* Create the root block IO
	*/
	SET_BOOKMARK(&zb, os->os_dsl_dataset ?
	os->os_dsl_dataset->ds_object : DMU_META_OBJSET,
	ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID);
	arc_release(os->os_phys_buf, &os->os_phys_buf);

	dmu_write_policy(os, NULL, 0, 0, &zp);

	/*
	* If we are either claiming the ZIL or doing a raw receive, write
	* out the os_phys_buf raw. Neither of these actions will effect the
	* MAC at this point.
	*/
	if (os->os_raw_receive \|\|
	os->os_next_write_raw[tx->tx_txg & TXG_MASK]) {
	ASSERT(os->os_encrypted);
	arc_convert_to_raw(os->os_phys_buf,
	os->os_dsl_dataset->ds_object, ZFS_HOST_BYTEORDER,
	DMU_OT_OBJSET, NULL, NULL, NULL);
	}

	zio = arc_write(pio, os->os_spa, tx->tx_txg,
	blkptr_copy, os->os_phys_buf, DMU_OS_IS_L2CACHEABLE(os),
	&zp, dmu_objset_write_ready, NULL, NULL, dmu_objset_write_done,
	os, ZIO_PRIORITY_ASYNC_WRITE, ZIO_FLAG_MUSTSUCCEED, &zb);

	/*
	* Sync special dnodes - the parent IO for the sync is the root block
	*/
	DMU_META_DNODE(os)->dn_zio = zio;
	dnode_sync(DMU_META_DNODE(os), tx);

	os->os_phys->os_flags = os->os_flags;

	if (DMU_USERUSED_DNODE(os) &&
	DMU_USERUSED_DNODE(os)->dn_type != DMU_OT_NONE) {
	DMU_USERUSED_DNODE(os)->dn_zio = zio;
	dnode_sync(DMU_USERUSED_DNODE(os), tx);
	DMU_GROUPUSED_DNODE(os)->dn_zio = zio;
	dnode_sync(DMU_GROUPUSED_DNODE(os), tx);
	}

	if (DMU_PROJECTUSED_DNODE(os) &&
	DMU_PROJECTUSED_DNODE(os)->dn_type != DMU_OT_NONE) {
	DMU_PROJECTUSED_DNODE(os)->dn_zio = zio;
	dnode_sync(DMU_PROJECTUSED_DNODE(os), tx);
	}

	txgoff = tx->tx_txg & TXG_MASK;

	/*
	* We must create the list here because it uses the
	* dn_dirty_link[] of this txg. But it may already
	* exist because we call dsl_dataset_sync() twice per txg.
	*/
	- if (os->os_synced_dnodes == NULL) {
	- os->os_synced_dnodes =
	- multilist_create(sizeof (dnode_t),
	+ if (os->os_synced_dnodes.ml_sublists == NULL) {
	+ multilist_create(&os->os_synced_dnodes, sizeof (dnode_t),
	offsetof(dnode_t, dn_dirty_link[txgoff]),
	dnode_multilist_index_func);
	} else {
	- ASSERT3U(os->os_synced_dnodes->ml_offset, ==,
	+ ASSERT3U(os->os_synced_dnodes.ml_offset, ==,
	offsetof(dnode_t, dn_dirty_link[txgoff]));
	}

	- ml = os->os_dirty_dnodes[txgoff];
	+ ml = &os->os_dirty_dnodes[txgoff];
	num_sublists = multilist_get_num_sublists(ml);
	for (int i = 0; i < num_sublists; i++) {
	if (multilist_sublist_is_empty_idx(ml, i))
	continue;
	sync_dnodes_arg_t sda = kmem_alloc(sizeof (sda), KM_SLEEP);
	sda->sda_list = ml;
	sda->sda_sublist_idx = i;
	sda->sda_tx = tx;
	(void) taskq_dispatch(dmu_objset_pool(os)->dp_sync_taskq,
	sync_dnodes_task, sda, 0);
	/* callback frees sda */
	}
	taskq_wait(dmu_objset_pool(os)->dp_sync_taskq);

	list = &DMU_META_DNODE(os)->dn_dirty_records[txgoff];
	while ((dr = list_head(list)) != NULL) {
	ASSERT0(dr->dr_dbuf->db_level);
	list_remove(list, dr);
	zio_nowait(dr->dr_zio);
	}

	/* Enable dnode backfill if enough objects have been freed. */
	if (os->os_freed_dnodes >= dmu_rescan_dnode_threshold) {
	os->os_rescan_dnodes = B_TRUE;
	os->os_freed_dnodes = 0;
	}

	/*
	* Free intent log blocks up to this tx.
	*/
	zil_sync(os->os_zil, tx);
	os->os_phys->os_zil_header = os->os_zil_header;
	zio_nowait(zio);
	}

	boolean_t
	dmu_objset_is_dirty(objset_t *os, uint64_t txg)
	{
	- return (!multilist_is_empty(os->os_dirty_dnodes[txg & TXG_MASK]));
	+ return (!multilist_is_empty(&os->os_dirty_dnodes[txg & TXG_MASK]));
	}

	static file_info_cb_t *file_cbs[DMU_OST_NUMTYPES];

	void
	dmu_objset_register_type(dmu_objset_type_t ost, file_info_cb_t *cb)
	{
	file_cbs[ost] = cb;
	}

	int
	dmu_get_file_info(objset_t os, dmu_object_type_t bonustype, const void data,
	zfs_file_info_t *zfi)
	{
	file_info_cb_t *cb = file_cbs[os->os_phys->os_type];
	if (cb == NULL)
	return (EINVAL);
	return (cb(bonustype, data, zfi));
	}

	boolean_t
	dmu_objset_userused_enabled(objset_t *os)
	{
	return (spa_version(os->os_spa) >= SPA_VERSION_USERSPACE &&
	file_cbs[os->os_phys->os_type] != NULL &&
	DMU_USERUSED_DNODE(os) != NULL);
	}

	boolean_t
	dmu_objset_userobjused_enabled(objset_t *os)
	{
	return (dmu_objset_userused_enabled(os) &&
	spa_feature_is_enabled(os->os_spa, SPA_FEATURE_USEROBJ_ACCOUNTING));
	}

	boolean_t
	dmu_objset_projectquota_enabled(objset_t *os)
	{
	return (file_cbs[os->os_phys->os_type] != NULL &&
	DMU_PROJECTUSED_DNODE(os) != NULL &&
	spa_feature_is_enabled(os->os_spa, SPA_FEATURE_PROJECT_QUOTA));
	}

	typedef struct userquota_node {
	/* must be in the first filed, see userquota_update_cache() */
	char uqn_id[20 + DMU_OBJACCT_PREFIX_LEN];
	int64_t uqn_delta;
	avl_node_t uqn_node;
	} userquota_node_t;

	typedef struct userquota_cache {
	avl_tree_t uqc_user_deltas;
	avl_tree_t uqc_group_deltas;
	avl_tree_t uqc_project_deltas;
	} userquota_cache_t;

	static int
	userquota_compare(const void l, const void r)
	{
	const userquota_node_t *luqn = l;
	const userquota_node_t *ruqn = r;
	int rv;

	/*
	* NB: can only access uqn_id because userquota_update_cache() doesn't
	* pass in an entire userquota_node_t.
	*/
	rv = strcmp(luqn->uqn_id, ruqn->uqn_id);

	return (TREE_ISIGN(rv));
	}

	static void
	do_userquota_cacheflush(objset_t os, userquota_cache_t cache, dmu_tx_t *tx)
	{
	void *cookie;
	userquota_node_t *uqn;

	ASSERT(dmu_tx_is_syncing(tx));

	cookie = NULL;
	while ((uqn = avl_destroy_nodes(&cache->uqc_user_deltas,
	&cookie)) != NULL) {
	/*
	* os_userused_lock protects against concurrent calls to
	* zap_increment_int(). It's needed because zap_increment_int()
	* is not thread-safe (i.e. not atomic).
	*/
	mutex_enter(&os->os_userused_lock);
	VERIFY0(zap_increment(os, DMU_USERUSED_OBJECT,
	uqn->uqn_id, uqn->uqn_delta, tx));
	mutex_exit(&os->os_userused_lock);
	kmem_free(uqn, sizeof (*uqn));
	}
	avl_destroy(&cache->uqc_user_deltas);

	cookie = NULL;
	while ((uqn = avl_destroy_nodes(&cache->uqc_group_deltas,
	&cookie)) != NULL) {
	mutex_enter(&os->os_userused_lock);
	VERIFY0(zap_increment(os, DMU_GROUPUSED_OBJECT,
	uqn->uqn_id, uqn->uqn_delta, tx));
	mutex_exit(&os->os_userused_lock);
	kmem_free(uqn, sizeof (*uqn));
	}
	avl_destroy(&cache->uqc_group_deltas);

	if (dmu_objset_projectquota_enabled(os)) {
	cookie = NULL;
	while ((uqn = avl_destroy_nodes(&cache->uqc_project_deltas,
	&cookie)) != NULL) {
	mutex_enter(&os->os_userused_lock);
	VERIFY0(zap_increment(os, DMU_PROJECTUSED_OBJECT,
	uqn->uqn_id, uqn->uqn_delta, tx));
	mutex_exit(&os->os_userused_lock);
	kmem_free(uqn, sizeof (*uqn));
	}
	avl_destroy(&cache->uqc_project_deltas);
	}
	}

	static void
	userquota_update_cache(avl_tree_t avl, const char id, int64_t delta)
	{
	userquota_node_t *uqn;
	avl_index_t idx;

	ASSERT(strlen(id) < sizeof (uqn->uqn_id));
	/*
	* Use id directly for searching because uqn_id is the first field of
	* userquota_node_t and fields after uqn_id won't be accessed in
	* avl_find().
	*/
	uqn = avl_find(avl, (const void *)id, &idx);
	if (uqn == NULL) {
	uqn = kmem_zalloc(sizeof (*uqn), KM_SLEEP);
	strlcpy(uqn->uqn_id, id, sizeof (uqn->uqn_id));
	avl_insert(avl, uqn, idx);
	}
	uqn->uqn_delta += delta;
	}

	static void
	do_userquota_update(objset_t os, userquota_cache_t cache, uint64_t used,
	uint64_t flags, uint64_t user, uint64_t group, uint64_t project,
	boolean_t subtract)
	{
	if (flags & DNODE_FLAG_USERUSED_ACCOUNTED) {
	int64_t delta = DNODE_MIN_SIZE + used;
	char name[20];

	if (subtract)
	delta = -delta;

	(void) snprintf(name, sizeof (name), "%llx", (longlong_t)user);
	userquota_update_cache(&cache->uqc_user_deltas, name, delta);

	(void) snprintf(name, sizeof (name), "%llx", (longlong_t)group);
	userquota_update_cache(&cache->uqc_group_deltas, name, delta);

	if (dmu_objset_projectquota_enabled(os)) {
	(void) snprintf(name, sizeof (name), "%llx",
	(longlong_t)project);
	userquota_update_cache(&cache->uqc_project_deltas,
	name, delta);
	}
	}
	}

	static void
	do_userobjquota_update(objset_t os, userquota_cache_t cache, uint64_t flags,
	uint64_t user, uint64_t group, uint64_t project, boolean_t subtract)
	{
	if (flags & DNODE_FLAG_USEROBJUSED_ACCOUNTED) {
	char name[20 + DMU_OBJACCT_PREFIX_LEN];
	int delta = subtract ? -1 : 1;

	(void) snprintf(name, sizeof (name), DMU_OBJACCT_PREFIX "%llx",
	(longlong_t)user);
	userquota_update_cache(&cache->uqc_user_deltas, name, delta);

	(void) snprintf(name, sizeof (name), DMU_OBJACCT_PREFIX "%llx",
	(longlong_t)group);
	userquota_update_cache(&cache->uqc_group_deltas, name, delta);

	if (dmu_objset_projectquota_enabled(os)) {
	(void) snprintf(name, sizeof (name),
	DMU_OBJACCT_PREFIX "%llx", (longlong_t)project);
	userquota_update_cache(&cache->uqc_project_deltas,
	name, delta);
	}
	}
	}

	typedef struct userquota_updates_arg {
	objset_t *uua_os;
	int uua_sublist_idx;
	dmu_tx_t *uua_tx;
	} userquota_updates_arg_t;

	static void
	userquota_updates_task(void *arg)
	{
	userquota_updates_arg_t *uua = arg;
	objset_t *os = uua->uua_os;
	dmu_tx_t *tx = uua->uua_tx;
	dnode_t *dn;
	userquota_cache_t cache = { { 0 } };

	multilist_sublist_t *list =
	- multilist_sublist_lock(os->os_synced_dnodes, uua->uua_sublist_idx);
	+ multilist_sublist_lock(&os->os_synced_dnodes, uua->uua_sublist_idx);

	ASSERT(multilist_sublist_head(list) == NULL \|\|
	dmu_objset_userused_enabled(os));
	avl_create(&cache.uqc_user_deltas, userquota_compare,
	sizeof (userquota_node_t), offsetof(userquota_node_t, uqn_node));
	avl_create(&cache.uqc_group_deltas, userquota_compare,
	sizeof (userquota_node_t), offsetof(userquota_node_t, uqn_node));
	if (dmu_objset_projectquota_enabled(os))
	avl_create(&cache.uqc_project_deltas, userquota_compare,
	sizeof (userquota_node_t), offsetof(userquota_node_t,
	uqn_node));

	while ((dn = multilist_sublist_head(list)) != NULL) {
	int flags;
	ASSERT(!DMU_OBJECT_IS_SPECIAL(dn->dn_object));
	ASSERT(dn->dn_phys->dn_type == DMU_OT_NONE \|\|
	dn->dn_phys->dn_flags &
	DNODE_FLAG_USERUSED_ACCOUNTED);

	flags = dn->dn_id_flags;
	ASSERT(flags);
	if (flags & DN_ID_OLD_EXIST) {
	do_userquota_update(os, &cache, dn->dn_oldused,
	dn->dn_oldflags, dn->dn_olduid, dn->dn_oldgid,
	dn->dn_oldprojid, B_TRUE);
	do_userobjquota_update(os, &cache, dn->dn_oldflags,
	dn->dn_olduid, dn->dn_oldgid,
	dn->dn_oldprojid, B_TRUE);
	}
	if (flags & DN_ID_NEW_EXIST) {
	do_userquota_update(os, &cache,
	DN_USED_BYTES(dn->dn_phys), dn->dn_phys->dn_flags,
	dn->dn_newuid, dn->dn_newgid,
	dn->dn_newprojid, B_FALSE);
	do_userobjquota_update(os, &cache,
	dn->dn_phys->dn_flags, dn->dn_newuid, dn->dn_newgid,
	dn->dn_newprojid, B_FALSE);
	}

	mutex_enter(&dn->dn_mtx);
	dn->dn_oldused = 0;
	dn->dn_oldflags = 0;
	if (dn->dn_id_flags & DN_ID_NEW_EXIST) {
	dn->dn_olduid = dn->dn_newuid;
	dn->dn_oldgid = dn->dn_newgid;
	dn->dn_oldprojid = dn->dn_newprojid;
	dn->dn_id_flags \|= DN_ID_OLD_EXIST;
	if (dn->dn_bonuslen == 0)
	dn->dn_id_flags \|= DN_ID_CHKED_SPILL;
	else
	dn->dn_id_flags \|= DN_ID_CHKED_BONUS;
	}
	dn->dn_id_flags &= ~(DN_ID_NEW_EXIST);
	mutex_exit(&dn->dn_mtx);

	multilist_sublist_remove(list, dn);
	- dnode_rele(dn, os->os_synced_dnodes);
	+ dnode_rele(dn, &os->os_synced_dnodes);
	}
	do_userquota_cacheflush(os, &cache, tx);
	multilist_sublist_unlock(list);
	kmem_free(uua, sizeof (*uua));
	}

	/*
	* Release dnode holds from dmu_objset_sync_dnodes(). When the dnode is being
	* synced (i.e. we have issued the zio's for blocks in the dnode), it can't be
	* evicted because the block containing the dnode can't be evicted until it is
	* written out. However, this hold is necessary to prevent the dnode_t from
	* being moved (via dnode_move()) while it's still referenced by
	* dbuf_dirty_record_t:dr_dnode. And dr_dnode is needed for
	* dirty_lightweight_leaf-type dirty records.
	*
	* If we are doing user-object accounting, the dnode_rele() happens from
	* userquota_updates_task() instead.
	*/
	static void
	dnode_rele_task(void *arg)
	{
	userquota_updates_arg_t *uua = arg;
	objset_t *os = uua->uua_os;

	multilist_sublist_t *list =
	- multilist_sublist_lock(os->os_synced_dnodes, uua->uua_sublist_idx);
	+ multilist_sublist_lock(&os->os_synced_dnodes, uua->uua_sublist_idx);

	dnode_t *dn;
	while ((dn = multilist_sublist_head(list)) != NULL) {
	multilist_sublist_remove(list, dn);
	- dnode_rele(dn, os->os_synced_dnodes);
	+ dnode_rele(dn, &os->os_synced_dnodes);
	}
	multilist_sublist_unlock(list);
	kmem_free(uua, sizeof (*uua));
	}

	/*
	* Return TRUE if userquota updates are needed.
	*/
	static boolean_t
	dmu_objset_do_userquota_updates_prep(objset_t os, dmu_tx_t tx)
	{
	if (!dmu_objset_userused_enabled(os))
	return (B_FALSE);

	/*
	* If this is a raw receive just return and handle accounting
	* later when we have the keys loaded. We also don't do user
	* accounting during claiming since the datasets are not owned
	* for the duration of claiming and this txg should only be
	* used for recovery.
	*/
	if (os->os_encrypted && dmu_objset_is_receiving(os))
	return (B_FALSE);

	if (tx->tx_txg <= os->os_spa->spa_claim_max_txg)
	return (B_FALSE);

	/* Allocate the user/group/project used objects if necessary. */
	if (DMU_USERUSED_DNODE(os)->dn_type == DMU_OT_NONE) {
	VERIFY0(zap_create_claim(os,
	DMU_USERUSED_OBJECT,
	DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx));
	VERIFY0(zap_create_claim(os,
	DMU_GROUPUSED_OBJECT,
	DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx));
	}

	if (dmu_objset_projectquota_enabled(os) &&
	DMU_PROJECTUSED_DNODE(os)->dn_type == DMU_OT_NONE) {
	VERIFY0(zap_create_claim(os, DMU_PROJECTUSED_OBJECT,
	DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx));
	}
	return (B_TRUE);
	}

	/*
	* Dispatch taskq tasks to dp_sync_taskq to update the user accounting, and
	* also release the holds on the dnodes from dmu_objset_sync_dnodes().
	* The caller must taskq_wait(dp_sync_taskq).
	*/
	void
	dmu_objset_sync_done(objset_t os, dmu_tx_t tx)
	{
	boolean_t need_userquota = dmu_objset_do_userquota_updates_prep(os, tx);

	- int num_sublists = multilist_get_num_sublists(os->os_synced_dnodes);
	+ int num_sublists = multilist_get_num_sublists(&os->os_synced_dnodes);
	for (int i = 0; i < num_sublists; i++) {
	userquota_updates_arg_t *uua =
	kmem_alloc(sizeof (*uua), KM_SLEEP);
	uua->uua_os = os;
	uua->uua_sublist_idx = i;
	uua->uua_tx = tx;

	/*
	* If we don't need to update userquotas, use
	* dnode_rele_task() to call dnode_rele()
	*/
	(void) taskq_dispatch(dmu_objset_pool(os)->dp_sync_taskq,
	need_userquota ? userquota_updates_task : dnode_rele_task,
	uua, 0);
	/* callback frees uua */
	}
	}


	/*
	* Returns a pointer to data to find uid/gid from
	*
	* If a dirty record for transaction group that is syncing can't
	* be found then NULL is returned. In the NULL case it is assumed
	* the uid/gid aren't changing.
	*/
	static void *
	dmu_objset_userquota_find_data(dmu_buf_impl_t db, dmu_tx_t tx)
	{
	dbuf_dirty_record_t *dr;
	void *data;

	if (db->db_dirtycnt == 0)
	return (db->db.db_data); /* Nothing is changing */

	dr = dbuf_find_dirty_eq(db, tx->tx_txg);

	if (dr == NULL) {
	data = NULL;
	} else {
	if (dr->dr_dnode->dn_bonuslen == 0 &&
	dr->dr_dbuf->db_blkid == DMU_SPILL_BLKID)
	data = dr->dt.dl.dr_data->b_data;
	else
	data = dr->dt.dl.dr_data;
	}

	return (data);
	}

	void
	dmu_objset_userquota_get_ids(dnode_t dn, boolean_t before, dmu_tx_t tx)
	{
	objset_t *os = dn->dn_objset;
	void *data = NULL;
	dmu_buf_impl_t *db = NULL;
	int flags = dn->dn_id_flags;
	int error;
	boolean_t have_spill = B_FALSE;

	if (!dmu_objset_userused_enabled(dn->dn_objset))
	return;

	/*
	* Raw receives introduce a problem with user accounting. Raw
	* receives cannot update the user accounting info because the
	* user ids and the sizes are encrypted. To guarantee that we
	* never end up with bad user accounting, we simply disable it
	* during raw receives. We also disable this for normal receives
	* so that an incremental raw receive may be done on top of an
	* existing non-raw receive.
	*/
	if (os->os_encrypted && dmu_objset_is_receiving(os))
	return;

	if (before && (flags & (DN_ID_CHKED_BONUS\|DN_ID_OLD_EXIST\|
	DN_ID_CHKED_SPILL)))
	return;

	if (before && dn->dn_bonuslen != 0)
	data = DN_BONUS(dn->dn_phys);
	else if (!before && dn->dn_bonuslen != 0) {
	if (dn->dn_bonus) {
	db = dn->dn_bonus;
	mutex_enter(&db->db_mtx);
	data = dmu_objset_userquota_find_data(db, tx);
	} else {
	data = DN_BONUS(dn->dn_phys);
	}
	} else if (dn->dn_bonuslen == 0 && dn->dn_bonustype == DMU_OT_SA) {
	int rf = 0;

	if (RW_WRITE_HELD(&dn->dn_struct_rwlock))
	rf \|= DB_RF_HAVESTRUCT;
	error = dmu_spill_hold_by_dnode(dn,
	rf \| DB_RF_MUST_SUCCEED,
	FTAG, (dmu_buf_t **)&db);
	ASSERT(error == 0);
	mutex_enter(&db->db_mtx);
	data = (before) ? db->db.db_data :
	dmu_objset_userquota_find_data(db, tx);
	have_spill = B_TRUE;
	} else {
	mutex_enter(&dn->dn_mtx);
	dn->dn_id_flags \|= DN_ID_CHKED_BONUS;
	mutex_exit(&dn->dn_mtx);
	return;
	}

	/*
	* Must always call the callback in case the object
	* type has changed and that type isn't an object type to track
	*/
	zfs_file_info_t zfi;
	error = file_cbs[os->os_phys->os_type](dn->dn_bonustype, data, &zfi);

	if (before) {
	ASSERT(data);
	dn->dn_olduid = zfi.zfi_user;
	dn->dn_oldgid = zfi.zfi_group;
	dn->dn_oldprojid = zfi.zfi_project;
	} else if (data) {
	dn->dn_newuid = zfi.zfi_user;
	dn->dn_newgid = zfi.zfi_group;
	dn->dn_newprojid = zfi.zfi_project;
	}

	/*
	* Preserve existing uid/gid when the callback can't determine
	* what the new uid/gid are and the callback returned EEXIST.
	* The EEXIST error tells us to just use the existing uid/gid.
	* If we don't know what the old values are then just assign
	* them to 0, since that is a new file being created.
	*/
	if (!before && data == NULL && error == EEXIST) {
	if (flags & DN_ID_OLD_EXIST) {
	dn->dn_newuid = dn->dn_olduid;
	dn->dn_newgid = dn->dn_oldgid;
	dn->dn_newprojid = dn->dn_oldprojid;
	} else {
	dn->dn_newuid = 0;
	dn->dn_newgid = 0;
	dn->dn_newprojid = ZFS_DEFAULT_PROJID;
	}
	error = 0;
	}

	if (db)
	mutex_exit(&db->db_mtx);

	mutex_enter(&dn->dn_mtx);
	if (error == 0 && before)
	dn->dn_id_flags \|= DN_ID_OLD_EXIST;
	if (error == 0 && !before)
	dn->dn_id_flags \|= DN_ID_NEW_EXIST;

	if (have_spill) {
	dn->dn_id_flags \|= DN_ID_CHKED_SPILL;
	} else {
	dn->dn_id_flags \|= DN_ID_CHKED_BONUS;
	}
	mutex_exit(&dn->dn_mtx);
	if (have_spill)
	dmu_buf_rele((dmu_buf_t *)db, FTAG);
	}

	boolean_t
	dmu_objset_userspace_present(objset_t *os)
	{
	return (os->os_phys->os_flags &
	OBJSET_FLAG_USERACCOUNTING_COMPLETE);
	}

	boolean_t
	dmu_objset_userobjspace_present(objset_t *os)
	{
	return (os->os_phys->os_flags &
	OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE);
	}

	boolean_t
	dmu_objset_projectquota_present(objset_t *os)
	{
	return (os->os_phys->os_flags &
	OBJSET_FLAG_PROJECTQUOTA_COMPLETE);
	}

	static int
	dmu_objset_space_upgrade(objset_t *os)
	{
	uint64_t obj;
	int err = 0;

	/*
	* We simply need to mark every object dirty, so that it will be
	* synced out and now accounted. If this is called
	* concurrently, or if we already did some work before crashing,
	* that's fine, since we track each object's accounted state
	* independently.
	*/

	for (obj = 0; err == 0; err = dmu_object_next(os, &obj, FALSE, 0)) {
	dmu_tx_t *tx;
	dmu_buf_t *db;
	int objerr;

	mutex_enter(&os->os_upgrade_lock);
	if (os->os_upgrade_exit)
	err = SET_ERROR(EINTR);
	mutex_exit(&os->os_upgrade_lock);
	if (err != 0)
	return (err);

	if (issig(JUSTLOOKING) && issig(FORREAL))
	return (SET_ERROR(EINTR));

	objerr = dmu_bonus_hold(os, obj, FTAG, &db);
	if (objerr != 0)
	continue;
	tx = dmu_tx_create(os);
	dmu_tx_hold_bonus(tx, obj);
	objerr = dmu_tx_assign(tx, TXG_WAIT);
	if (objerr != 0) {
	dmu_buf_rele(db, FTAG);
	dmu_tx_abort(tx);
	continue;
	}
	dmu_buf_will_dirty(db, tx);
	dmu_buf_rele(db, FTAG);
	dmu_tx_commit(tx);
	}
	return (0);
	}

	static int
	dmu_objset_userspace_upgrade_cb(objset_t *os)
	{
	int err = 0;

	if (dmu_objset_userspace_present(os))
	return (0);
	if (dmu_objset_is_snapshot(os))
	return (SET_ERROR(EINVAL));
	if (!dmu_objset_userused_enabled(os))
	return (SET_ERROR(ENOTSUP));

	err = dmu_objset_space_upgrade(os);
	if (err)
	return (err);

	os->os_flags \|= OBJSET_FLAG_USERACCOUNTING_COMPLETE;
	txg_wait_synced(dmu_objset_pool(os), 0);
	return (0);
	}

	void
	dmu_objset_userspace_upgrade(objset_t *os)
	{
	dmu_objset_upgrade(os, dmu_objset_userspace_upgrade_cb);
	}

	static int
	dmu_objset_id_quota_upgrade_cb(objset_t *os)
	{
	int err = 0;

	if (dmu_objset_userobjspace_present(os) &&
	dmu_objset_projectquota_present(os))
	return (0);
	if (dmu_objset_is_snapshot(os))
	return (SET_ERROR(EINVAL));
	if (!dmu_objset_userused_enabled(os))
	return (SET_ERROR(ENOTSUP));
	if (!dmu_objset_projectquota_enabled(os) &&
	dmu_objset_userobjspace_present(os))
	return (SET_ERROR(ENOTSUP));

	if (dmu_objset_userobjused_enabled(os))
	dmu_objset_ds(os)->ds_feature_activation[
	SPA_FEATURE_USEROBJ_ACCOUNTING] = (void *)B_TRUE;
	if (dmu_objset_projectquota_enabled(os))
	dmu_objset_ds(os)->ds_feature_activation[
	SPA_FEATURE_PROJECT_QUOTA] = (void *)B_TRUE;

	err = dmu_objset_space_upgrade(os);
	if (err)
	return (err);

	os->os_flags \|= OBJSET_FLAG_USERACCOUNTING_COMPLETE;
	if (dmu_objset_userobjused_enabled(os))
	os->os_flags \|= OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE;
	if (dmu_objset_projectquota_enabled(os))
	os->os_flags \|= OBJSET_FLAG_PROJECTQUOTA_COMPLETE;

	txg_wait_synced(dmu_objset_pool(os), 0);
	return (0);
	}

	void
	dmu_objset_id_quota_upgrade(objset_t *os)
	{
	dmu_objset_upgrade(os, dmu_objset_id_quota_upgrade_cb);
	}

	boolean_t
	dmu_objset_userobjspace_upgradable(objset_t *os)
	{
	return (dmu_objset_type(os) == DMU_OST_ZFS &&
	!dmu_objset_is_snapshot(os) &&
	dmu_objset_userobjused_enabled(os) &&
	!dmu_objset_userobjspace_present(os) &&
	spa_writeable(dmu_objset_spa(os)));
	}

	boolean_t
	dmu_objset_projectquota_upgradable(objset_t *os)
	{
	return (dmu_objset_type(os) == DMU_OST_ZFS &&
	!dmu_objset_is_snapshot(os) &&
	dmu_objset_projectquota_enabled(os) &&
	!dmu_objset_projectquota_present(os) &&
	spa_writeable(dmu_objset_spa(os)));
	}

	void
	dmu_objset_space(objset_t os, uint64_t refdbytesp, uint64_t *availbytesp,
	uint64_t usedobjsp, uint64_t availobjsp)
	{
	dsl_dataset_space(os->os_dsl_dataset, refdbytesp, availbytesp,
	usedobjsp, availobjsp);
	}

	uint64_t
	dmu_objset_fsid_guid(objset_t *os)
	{
	return (dsl_dataset_fsid_guid(os->os_dsl_dataset));
	}

	void
	dmu_objset_fast_stat(objset_t os, dmu_objset_stats_t stat)
	{
	stat->dds_type = os->os_phys->os_type;
	if (os->os_dsl_dataset)
	dsl_dataset_fast_stat(os->os_dsl_dataset, stat);
	}

	void
	dmu_objset_stats(objset_t os, nvlist_t nv)
	{
	ASSERT(os->os_dsl_dataset \|\|
	os->os_phys->os_type == DMU_OST_META);

	if (os->os_dsl_dataset != NULL)
	dsl_dataset_stats(os->os_dsl_dataset, nv);

	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_TYPE,
	os->os_phys->os_type);
	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USERACCOUNTING,
	dmu_objset_userspace_present(os));
	}

	int
	dmu_objset_is_snapshot(objset_t *os)
	{
	if (os->os_dsl_dataset != NULL)
	return (os->os_dsl_dataset->ds_is_snapshot);
	else
	return (B_FALSE);
	}

	int
	dmu_snapshot_realname(objset_t os, const char name, char *real, int maxlen,
	boolean_t *conflict)
	{
	dsl_dataset_t *ds = os->os_dsl_dataset;
	uint64_t ignored;

	if (dsl_dataset_phys(ds)->ds_snapnames_zapobj == 0)
	return (SET_ERROR(ENOENT));

	return (zap_lookup_norm(ds->ds_dir->dd_pool->dp_meta_objset,
	dsl_dataset_phys(ds)->ds_snapnames_zapobj, name, 8, 1, &ignored,
	MT_NORMALIZE, real, maxlen, conflict));
	}

	int
	dmu_snapshot_list_next(objset_t os, int namelen, char name,
	uint64_t idp, uint64_t offp, boolean_t *case_conflict)
	{
	dsl_dataset_t *ds = os->os_dsl_dataset;
	zap_cursor_t cursor;
	zap_attribute_t attr;

	ASSERT(dsl_pool_config_held(dmu_objset_pool(os)));

	if (dsl_dataset_phys(ds)->ds_snapnames_zapobj == 0)
	return (SET_ERROR(ENOENT));

	zap_cursor_init_serialized(&cursor,
	ds->ds_dir->dd_pool->dp_meta_objset,
	dsl_dataset_phys(ds)->ds_snapnames_zapobj, *offp);

	if (zap_cursor_retrieve(&cursor, &attr) != 0) {
	zap_cursor_fini(&cursor);
	return (SET_ERROR(ENOENT));
	}

	if (strlen(attr.za_name) + 1 > namelen) {
	zap_cursor_fini(&cursor);
	return (SET_ERROR(ENAMETOOLONG));
	}

	(void) strlcpy(name, attr.za_name, namelen);
	if (idp)
	*idp = attr.za_first_integer;
	if (case_conflict)
	*case_conflict = attr.za_normalization_conflict;
	zap_cursor_advance(&cursor);
	*offp = zap_cursor_serialize(&cursor);
	zap_cursor_fini(&cursor);

	return (0);
	}

	int
	dmu_snapshot_lookup(objset_t os, const char name, uint64_t *value)
	{
	return (dsl_dataset_snap_lookup(os->os_dsl_dataset, name, value));
	}

	int
	dmu_dir_list_next(objset_t os, int namelen, char name,
	uint64_t idp, uint64_t offp)
	{
	dsl_dir_t *dd = os->os_dsl_dataset->ds_dir;
	zap_cursor_t cursor;
	zap_attribute_t attr;

	/* there is no next dir on a snapshot! */
	if (os->os_dsl_dataset->ds_object !=
	dsl_dir_phys(dd)->dd_head_dataset_obj)
	return (SET_ERROR(ENOENT));

	zap_cursor_init_serialized(&cursor,
	dd->dd_pool->dp_meta_objset,
	dsl_dir_phys(dd)->dd_child_dir_zapobj, *offp);

	if (zap_cursor_retrieve(&cursor, &attr) != 0) {
	zap_cursor_fini(&cursor);
	return (SET_ERROR(ENOENT));
	}

	if (strlen(attr.za_name) + 1 > namelen) {
	zap_cursor_fini(&cursor);
	return (SET_ERROR(ENAMETOOLONG));
	}

	(void) strlcpy(name, attr.za_name, namelen);
	if (idp)
	*idp = attr.za_first_integer;
	zap_cursor_advance(&cursor);
	*offp = zap_cursor_serialize(&cursor);
	zap_cursor_fini(&cursor);

	return (0);
	}

	typedef struct dmu_objset_find_ctx {
	taskq_t *dc_tq;
	dsl_pool_t *dc_dp;
	uint64_t dc_ddobj;
	char dc_ddname; / last component of ddobj's name */
	int (dc_func)(dsl_pool_t , dsl_dataset_t , void );
	void *dc_arg;
	int dc_flags;
	kmutex_t *dc_error_lock;
	int *dc_error;
	} dmu_objset_find_ctx_t;

	static void
	dmu_objset_find_dp_impl(dmu_objset_find_ctx_t *dcp)
	{
	dsl_pool_t *dp = dcp->dc_dp;
	dsl_dir_t *dd;
	dsl_dataset_t *ds;
	zap_cursor_t zc;
	zap_attribute_t *attr;
	uint64_t thisobj;
	int err = 0;

	/* don't process if there already was an error */
	if (*dcp->dc_error != 0)
	goto out;

	/*
	* Note: passing the name (dc_ddname) here is optional, but it
	* improves performance because we don't need to call
	* zap_value_search() to determine the name.
	*/
	err = dsl_dir_hold_obj(dp, dcp->dc_ddobj, dcp->dc_ddname, FTAG, &dd);
	if (err != 0)
	goto out;

	/* Don't visit hidden ($MOS & $ORIGIN) objsets. */
	if (dd->dd_myname[0] == '$') {
	dsl_dir_rele(dd, FTAG);
	goto out;
	}

	thisobj = dsl_dir_phys(dd)->dd_head_dataset_obj;
	attr = kmem_alloc(sizeof (zap_attribute_t), KM_SLEEP);

	/*
	* Iterate over all children.
	*/
	if (dcp->dc_flags & DS_FIND_CHILDREN) {
	for (zap_cursor_init(&zc, dp->dp_meta_objset,
	dsl_dir_phys(dd)->dd_child_dir_zapobj);
	zap_cursor_retrieve(&zc, attr) == 0;
	(void) zap_cursor_advance(&zc)) {
	ASSERT3U(attr->za_integer_length, ==,
	sizeof (uint64_t));
	ASSERT3U(attr->za_num_integers, ==, 1);

	dmu_objset_find_ctx_t *child_dcp =
	kmem_alloc(sizeof (*child_dcp), KM_SLEEP);
	child_dcp = dcp;
	child_dcp->dc_ddobj = attr->za_first_integer;
	child_dcp->dc_ddname = spa_strdup(attr->za_name);
	if (dcp->dc_tq != NULL)
	(void) taskq_dispatch(dcp->dc_tq,
	dmu_objset_find_dp_cb, child_dcp, TQ_SLEEP);
	else
	dmu_objset_find_dp_impl(child_dcp);
	}
	zap_cursor_fini(&zc);
	}

	/*
	* Iterate over all snapshots.
	*/
	if (dcp->dc_flags & DS_FIND_SNAPSHOTS) {
	dsl_dataset_t *ds;
	err = dsl_dataset_hold_obj(dp, thisobj, FTAG, &ds);

	if (err == 0) {
	uint64_t snapobj;

	snapobj = dsl_dataset_phys(ds)->ds_snapnames_zapobj;
	dsl_dataset_rele(ds, FTAG);

	for (zap_cursor_init(&zc, dp->dp_meta_objset, snapobj);
	zap_cursor_retrieve(&zc, attr) == 0;
	(void) zap_cursor_advance(&zc)) {
	ASSERT3U(attr->za_integer_length, ==,
	sizeof (uint64_t));
	ASSERT3U(attr->za_num_integers, ==, 1);

	err = dsl_dataset_hold_obj(dp,
	attr->za_first_integer, FTAG, &ds);
	if (err != 0)
	break;
	err = dcp->dc_func(dp, ds, dcp->dc_arg);
	dsl_dataset_rele(ds, FTAG);
	if (err != 0)
	break;
	}
	zap_cursor_fini(&zc);
	}
	}

	kmem_free(attr, sizeof (zap_attribute_t));

	if (err != 0) {
	dsl_dir_rele(dd, FTAG);
	goto out;
	}

	/*
	* Apply to self.
	*/
	err = dsl_dataset_hold_obj(dp, thisobj, FTAG, &ds);

	/*
	* Note: we hold the dir while calling dsl_dataset_hold_obj() so
	* that the dir will remain cached, and we won't have to re-instantiate
	* it (which could be expensive due to finding its name via
	* zap_value_search()).
	*/
	dsl_dir_rele(dd, FTAG);
	if (err != 0)
	goto out;
	err = dcp->dc_func(dp, ds, dcp->dc_arg);
	dsl_dataset_rele(ds, FTAG);

	out:
	if (err != 0) {
	mutex_enter(dcp->dc_error_lock);
	/* only keep first error */
	if (*dcp->dc_error == 0)
	*dcp->dc_error = err;
	mutex_exit(dcp->dc_error_lock);
	}

	if (dcp->dc_ddname != NULL)
	spa_strfree(dcp->dc_ddname);
	kmem_free(dcp, sizeof (*dcp));
	}

	static void
	dmu_objset_find_dp_cb(void *arg)
	{
	dmu_objset_find_ctx_t *dcp = arg;
	dsl_pool_t *dp = dcp->dc_dp;

	/*
	* We need to get a pool_config_lock here, as there are several
	* assert(pool_config_held) down the stack. Getting a lock via
	* dsl_pool_config_enter is risky, as it might be stalled by a
	* pending writer. This would deadlock, as the write lock can
	* only be granted when our parent thread gives up the lock.
	* The _prio interface gives us priority over a pending writer.
	*/
	dsl_pool_config_enter_prio(dp, FTAG);

	dmu_objset_find_dp_impl(dcp);

	dsl_pool_config_exit(dp, FTAG);
	}

	/*
	* Find objsets under and including ddobj, call func(ds) on each.
	* The order for the enumeration is completely undefined.
	* func is called with dsl_pool_config held.
	*/
	int
	dmu_objset_find_dp(dsl_pool_t *dp, uint64_t ddobj,
	int func(dsl_pool_t , dsl_dataset_t , void ), void arg, int flags)
	{
	int error = 0;
	taskq_t *tq = NULL;
	int ntasks;
	dmu_objset_find_ctx_t *dcp;
	kmutex_t err_lock;

	mutex_init(&err_lock, NULL, MUTEX_DEFAULT, NULL);
	dcp = kmem_alloc(sizeof (*dcp), KM_SLEEP);
	dcp->dc_tq = NULL;
	dcp->dc_dp = dp;
	dcp->dc_ddobj = ddobj;
	dcp->dc_ddname = NULL;
	dcp->dc_func = func;
	dcp->dc_arg = arg;
	dcp->dc_flags = flags;
	dcp->dc_error_lock = &err_lock;
	dcp->dc_error = &error;

	if ((flags & DS_FIND_SERIALIZE) \|\| dsl_pool_config_held_writer(dp)) {
	/*
	* In case a write lock is held we can't make use of
	* parallelism, as down the stack of the worker threads
	* the lock is asserted via dsl_pool_config_held.
	* In case of a read lock this is solved by getting a read
	* lock in each worker thread, which isn't possible in case
	* of a writer lock. So we fall back to the synchronous path
	* here.
	* In the future it might be possible to get some magic into
	* dsl_pool_config_held in a way that it returns true for
	* the worker threads so that a single lock held from this
	* thread suffices. For now, stay single threaded.
	*/
	dmu_objset_find_dp_impl(dcp);
	mutex_destroy(&err_lock);

	return (error);
	}

	ntasks = dmu_find_threads;
	if (ntasks == 0)
	ntasks = vdev_count_leaves(dp->dp_spa) * 4;
	tq = taskq_create("dmu_objset_find", ntasks, maxclsyspri, ntasks,
	INT_MAX, 0);
	if (tq == NULL) {
	kmem_free(dcp, sizeof (*dcp));
	mutex_destroy(&err_lock);

	return (SET_ERROR(ENOMEM));
	}
	dcp->dc_tq = tq;

	/* dcp will be freed by task */
	(void) taskq_dispatch(tq, dmu_objset_find_dp_cb, dcp, TQ_SLEEP);

	/*
	* PORTING: this code relies on the property of taskq_wait to wait
	* until no more tasks are queued and no more tasks are active. As
	* we always queue new tasks from within other tasks, task_wait
	* reliably waits for the full recursion to finish, even though we
	* enqueue new tasks after taskq_wait has been called.
	* On platforms other than illumos, taskq_wait may not have this
	* property.
	*/
	taskq_wait(tq);
	taskq_destroy(tq);
	mutex_destroy(&err_lock);

	return (error);
	}

	/*
	* Find all objsets under name, and for each, call 'func(child_name, arg)'.
	* The dp_config_rwlock must not be held when this is called, and it
	* will not be held when the callback is called.
	* Therefore this function should only be used when the pool is not changing
	* (e.g. in syncing context), or the callback can deal with the possible races.
	*/
	static int
	dmu_objset_find_impl(spa_t spa, const char name,
	int func(const char , void ), void *arg, int flags)
	{
	dsl_dir_t *dd;
	dsl_pool_t *dp = spa_get_dsl(spa);
	dsl_dataset_t *ds;
	zap_cursor_t zc;
	zap_attribute_t *attr;
	char *child;
	uint64_t thisobj;
	int err;

	dsl_pool_config_enter(dp, FTAG);

	err = dsl_dir_hold(dp, name, FTAG, &dd, NULL);
	if (err != 0) {
	dsl_pool_config_exit(dp, FTAG);
	return (err);
	}

	/* Don't visit hidden ($MOS & $ORIGIN) objsets. */
	if (dd->dd_myname[0] == '$') {
	dsl_dir_rele(dd, FTAG);
	dsl_pool_config_exit(dp, FTAG);
	return (0);
	}

	thisobj = dsl_dir_phys(dd)->dd_head_dataset_obj;
	attr = kmem_alloc(sizeof (zap_attribute_t), KM_SLEEP);

	/*
	* Iterate over all children.
	*/
	if (flags & DS_FIND_CHILDREN) {
	for (zap_cursor_init(&zc, dp->dp_meta_objset,
	dsl_dir_phys(dd)->dd_child_dir_zapobj);
	zap_cursor_retrieve(&zc, attr) == 0;
	(void) zap_cursor_advance(&zc)) {
	ASSERT3U(attr->za_integer_length, ==,
	sizeof (uint64_t));
	ASSERT3U(attr->za_num_integers, ==, 1);

	child = kmem_asprintf("%s/%s", name, attr->za_name);
	dsl_pool_config_exit(dp, FTAG);
	err = dmu_objset_find_impl(spa, child,
	func, arg, flags);
	dsl_pool_config_enter(dp, FTAG);
	kmem_strfree(child);
	if (err != 0)
	break;
	}
	zap_cursor_fini(&zc);

	if (err != 0) {
	dsl_dir_rele(dd, FTAG);
	dsl_pool_config_exit(dp, FTAG);
	kmem_free(attr, sizeof (zap_attribute_t));
	return (err);
	}
	}

	/*
	* Iterate over all snapshots.
	*/
	if (flags & DS_FIND_SNAPSHOTS) {
	err = dsl_dataset_hold_obj(dp, thisobj, FTAG, &ds);

	if (err == 0) {
	uint64_t snapobj;

	snapobj = dsl_dataset_phys(ds)->ds_snapnames_zapobj;
	dsl_dataset_rele(ds, FTAG);

	for (zap_cursor_init(&zc, dp->dp_meta_objset, snapobj);
	zap_cursor_retrieve(&zc, attr) == 0;
	(void) zap_cursor_advance(&zc)) {
	ASSERT3U(attr->za_integer_length, ==,
	sizeof (uint64_t));
	ASSERT3U(attr->za_num_integers, ==, 1);

	child = kmem_asprintf("%s@%s",
	name, attr->za_name);
	dsl_pool_config_exit(dp, FTAG);
	err = func(child, arg);
	dsl_pool_config_enter(dp, FTAG);
	kmem_strfree(child);
	if (err != 0)
	break;
	}
	zap_cursor_fini(&zc);
	}
	}

	dsl_dir_rele(dd, FTAG);
	kmem_free(attr, sizeof (zap_attribute_t));
	dsl_pool_config_exit(dp, FTAG);

	if (err != 0)
	return (err);

	/* Apply to self. */
	return (func(name, arg));
	}

	/*
	* See comment above dmu_objset_find_impl().
	*/
	int
	dmu_objset_find(const char name, int func(const char , void ), void arg,
	int flags)
	{
	spa_t *spa;
	int error;

	error = spa_open(name, &spa, FTAG);
	if (error != 0)
	return (error);
	error = dmu_objset_find_impl(spa, name, func, arg, flags);
	spa_close(spa, FTAG);
	return (error);
	}

	boolean_t
	dmu_objset_incompatible_encryption_version(objset_t *os)
	{
	return (dsl_dir_incompatible_encryption_version(
	os->os_dsl_dataset->ds_dir));
	}

	void
	dmu_objset_set_user(objset_t os, void user_ptr)
	{
	ASSERT(MUTEX_HELD(&os->os_user_ptr_lock));
	os->os_user_ptr = user_ptr;
	}

	void *
	dmu_objset_get_user(objset_t *os)
	{
	ASSERT(MUTEX_HELD(&os->os_user_ptr_lock));
	return (os->os_user_ptr);
	}

	/*
	* Determine name of filesystem, given name of snapshot.
	* buf must be at least ZFS_MAX_DATASET_NAME_LEN bytes
	*/
	int
	dmu_fsname(const char snapname, char buf)
	{
	char *atp = strchr(snapname, '@');
	if (atp == NULL)
	return (SET_ERROR(EINVAL));
	if (atp - snapname >= ZFS_MAX_DATASET_NAME_LEN)
	return (SET_ERROR(ENAMETOOLONG));
	(void) strlcpy(buf, snapname, atp - snapname + 1);
	return (0);
	}

	/*
	* Call when we think we're going to write/free space in open context
	* to track the amount of dirty data in the open txg, which is also the
	* amount of memory that can not be evicted until this txg syncs.
	*
	* Note that there are two conditions where this can be called from
	* syncing context:
	*
	* [1] When we just created the dataset, in which case we go on with
	* updating any accounting of dirty data as usual.
	* [2] When we are dirtying MOS data, in which case we only update the
	* pool's accounting of dirty data.
	*/
	void
	dmu_objset_willuse_space(objset_t os, int64_t space, dmu_tx_t tx)
	{
	dsl_dataset_t *ds = os->os_dsl_dataset;
	int64_t aspace = spa_get_worst_case_asize(os->os_spa, space);

	if (ds != NULL) {
	dsl_dir_willuse_space(ds->ds_dir, aspace, tx);
	}

	dsl_pool_dirty_space(dmu_tx_pool(tx), space, tx);
	}

	#if defined(_KERNEL)
	EXPORT_SYMBOL(dmu_objset_zil);
	EXPORT_SYMBOL(dmu_objset_pool);
	EXPORT_SYMBOL(dmu_objset_ds);
	EXPORT_SYMBOL(dmu_objset_type);
	EXPORT_SYMBOL(dmu_objset_name);
	EXPORT_SYMBOL(dmu_objset_hold);
	EXPORT_SYMBOL(dmu_objset_hold_flags);
	EXPORT_SYMBOL(dmu_objset_own);
	EXPORT_SYMBOL(dmu_objset_rele);
	EXPORT_SYMBOL(dmu_objset_rele_flags);
	EXPORT_SYMBOL(dmu_objset_disown);
	EXPORT_SYMBOL(dmu_objset_from_ds);
	EXPORT_SYMBOL(dmu_objset_create);
	EXPORT_SYMBOL(dmu_objset_clone);
	EXPORT_SYMBOL(dmu_objset_stats);
	EXPORT_SYMBOL(dmu_objset_fast_stat);
	EXPORT_SYMBOL(dmu_objset_spa);
	EXPORT_SYMBOL(dmu_objset_space);
	EXPORT_SYMBOL(dmu_objset_fsid_guid);
	EXPORT_SYMBOL(dmu_objset_find);
	EXPORT_SYMBOL(dmu_objset_byteswap);
	EXPORT_SYMBOL(dmu_objset_evict_dbufs);
	EXPORT_SYMBOL(dmu_objset_snap_cmtime);
	EXPORT_SYMBOL(dmu_objset_dnodesize);

	EXPORT_SYMBOL(dmu_objset_sync);
	EXPORT_SYMBOL(dmu_objset_is_dirty);
	EXPORT_SYMBOL(dmu_objset_create_impl_dnstats);
	EXPORT_SYMBOL(dmu_objset_create_impl);
	EXPORT_SYMBOL(dmu_objset_open_impl);
	EXPORT_SYMBOL(dmu_objset_evict);
	EXPORT_SYMBOL(dmu_objset_register_type);
	EXPORT_SYMBOL(dmu_objset_sync_done);
	EXPORT_SYMBOL(dmu_objset_userquota_get_ids);
	EXPORT_SYMBOL(dmu_objset_userused_enabled);
	EXPORT_SYMBOL(dmu_objset_userspace_upgrade);
	EXPORT_SYMBOL(dmu_objset_userspace_present);
	EXPORT_SYMBOL(dmu_objset_userobjused_enabled);
	EXPORT_SYMBOL(dmu_objset_userobjspace_upgradable);
	EXPORT_SYMBOL(dmu_objset_userobjspace_present);
	EXPORT_SYMBOL(dmu_objset_projectquota_enabled);
	EXPORT_SYMBOL(dmu_objset_projectquota_present);
	EXPORT_SYMBOL(dmu_objset_projectquota_upgradable);
	EXPORT_SYMBOL(dmu_objset_id_quota_upgrade);
	#endif
	diff --git a/sys/contrib/openzfs/module/zfs/dnode.c b/sys/contrib/openzfs/module/zfs/dnode.c
	index 0fc788e28fe4..8434e72aa4f8 100644
	--- a/sys/contrib/openzfs/module/zfs/dnode.c
	+++ b/sys/contrib/openzfs/module/zfs/dnode.c
	@@ -1,2577 +1,2577 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2012, 2020 by Delphix. All rights reserved.
	* Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
	*/

	#include <sys/zfs_context.h>
	#include <sys/dbuf.h>
	#include <sys/dnode.h>
	#include <sys/dmu.h>
	#include <sys/dmu_impl.h>
	#include <sys/dmu_tx.h>
	#include <sys/dmu_objset.h>
	#include <sys/dsl_dir.h>
	#include <sys/dsl_dataset.h>
	#include <sys/spa.h>
	#include <sys/zio.h>
	#include <sys/dmu_zfetch.h>
	#include <sys/range_tree.h>
	#include <sys/trace_zfs.h>
	#include <sys/zfs_project.h>

	dnode_stats_t dnode_stats = {
	{ "dnode_hold_dbuf_hold", KSTAT_DATA_UINT64 },
	{ "dnode_hold_dbuf_read", KSTAT_DATA_UINT64 },
	{ "dnode_hold_alloc_hits", KSTAT_DATA_UINT64 },
	{ "dnode_hold_alloc_misses", KSTAT_DATA_UINT64 },
	{ "dnode_hold_alloc_interior", KSTAT_DATA_UINT64 },
	{ "dnode_hold_alloc_lock_retry", KSTAT_DATA_UINT64 },
	{ "dnode_hold_alloc_lock_misses", KSTAT_DATA_UINT64 },
	{ "dnode_hold_alloc_type_none", KSTAT_DATA_UINT64 },
	{ "dnode_hold_free_hits", KSTAT_DATA_UINT64 },
	{ "dnode_hold_free_misses", KSTAT_DATA_UINT64 },
	{ "dnode_hold_free_lock_misses", KSTAT_DATA_UINT64 },
	{ "dnode_hold_free_lock_retry", KSTAT_DATA_UINT64 },
	{ "dnode_hold_free_overflow", KSTAT_DATA_UINT64 },
	{ "dnode_hold_free_refcount", KSTAT_DATA_UINT64 },
	{ "dnode_free_interior_lock_retry", KSTAT_DATA_UINT64 },
	{ "dnode_allocate", KSTAT_DATA_UINT64 },
	{ "dnode_reallocate", KSTAT_DATA_UINT64 },
	{ "dnode_buf_evict", KSTAT_DATA_UINT64 },
	{ "dnode_alloc_next_chunk", KSTAT_DATA_UINT64 },
	{ "dnode_alloc_race", KSTAT_DATA_UINT64 },
	{ "dnode_alloc_next_block", KSTAT_DATA_UINT64 },
	{ "dnode_move_invalid", KSTAT_DATA_UINT64 },
	{ "dnode_move_recheck1", KSTAT_DATA_UINT64 },
	{ "dnode_move_recheck2", KSTAT_DATA_UINT64 },
	{ "dnode_move_special", KSTAT_DATA_UINT64 },
	{ "dnode_move_handle", KSTAT_DATA_UINT64 },
	{ "dnode_move_rwlock", KSTAT_DATA_UINT64 },
	{ "dnode_move_active", KSTAT_DATA_UINT64 },
	};

	static kstat_t *dnode_ksp;
	static kmem_cache_t *dnode_cache;

	static dnode_phys_t dnode_phys_zero __maybe_unused;

	int zfs_default_bs = SPA_MINBLOCKSHIFT;
	int zfs_default_ibs = DN_MAX_INDBLKSHIFT;

	#ifdef _KERNEL
	static kmem_cbrc_t dnode_move(void , void , size_t, void *);
	#endif /* _KERNEL */

	static int
	dbuf_compare(const void x1, const void x2)
	{
	const dmu_buf_impl_t *d1 = x1;
	const dmu_buf_impl_t *d2 = x2;

	int cmp = TREE_CMP(d1->db_level, d2->db_level);
	if (likely(cmp))
	return (cmp);

	cmp = TREE_CMP(d1->db_blkid, d2->db_blkid);
	if (likely(cmp))
	return (cmp);

	if (d1->db_state == DB_SEARCH) {
	ASSERT3S(d2->db_state, !=, DB_SEARCH);
	return (-1);
	} else if (d2->db_state == DB_SEARCH) {
	ASSERT3S(d1->db_state, !=, DB_SEARCH);
	return (1);
	}

	return (TREE_PCMP(d1, d2));
	}

	/* ARGSUSED */
	static int
	dnode_cons(void arg, void unused, int kmflag)
	{
	dnode_t *dn = arg;
	int i;

	rw_init(&dn->dn_struct_rwlock, NULL, RW_NOLOCKDEP, NULL);
	mutex_init(&dn->dn_mtx, NULL, MUTEX_DEFAULT, NULL);
	mutex_init(&dn->dn_dbufs_mtx, NULL, MUTEX_DEFAULT, NULL);
	cv_init(&dn->dn_notxholds, NULL, CV_DEFAULT, NULL);
	cv_init(&dn->dn_nodnholds, NULL, CV_DEFAULT, NULL);

	/*
	* Every dbuf has a reference, and dropping a tracked reference is
	* O(number of references), so don't track dn_holds.
	*/
	zfs_refcount_create_untracked(&dn->dn_holds);
	zfs_refcount_create(&dn->dn_tx_holds);
	list_link_init(&dn->dn_link);

	bzero(&dn->dn_next_nblkptr[0], sizeof (dn->dn_next_nblkptr));
	bzero(&dn->dn_next_nlevels[0], sizeof (dn->dn_next_nlevels));
	bzero(&dn->dn_next_indblkshift[0], sizeof (dn->dn_next_indblkshift));
	bzero(&dn->dn_next_bonustype[0], sizeof (dn->dn_next_bonustype));
	bzero(&dn->dn_rm_spillblk[0], sizeof (dn->dn_rm_spillblk));
	bzero(&dn->dn_next_bonuslen[0], sizeof (dn->dn_next_bonuslen));
	bzero(&dn->dn_next_blksz[0], sizeof (dn->dn_next_blksz));
	bzero(&dn->dn_next_maxblkid[0], sizeof (dn->dn_next_maxblkid));

	for (i = 0; i < TXG_SIZE; i++) {
	multilist_link_init(&dn->dn_dirty_link[i]);
	dn->dn_free_ranges[i] = NULL;
	list_create(&dn->dn_dirty_records[i],
	sizeof (dbuf_dirty_record_t),
	offsetof(dbuf_dirty_record_t, dr_dirty_node));
	}

	dn->dn_allocated_txg = 0;
	dn->dn_free_txg = 0;
	dn->dn_assigned_txg = 0;
	dn->dn_dirty_txg = 0;
	dn->dn_dirtyctx = 0;
	dn->dn_dirtyctx_firstset = NULL;
	dn->dn_bonus = NULL;
	dn->dn_have_spill = B_FALSE;
	dn->dn_zio = NULL;
	dn->dn_oldused = 0;
	dn->dn_oldflags = 0;
	dn->dn_olduid = 0;
	dn->dn_oldgid = 0;
	dn->dn_oldprojid = ZFS_DEFAULT_PROJID;
	dn->dn_newuid = 0;
	dn->dn_newgid = 0;
	dn->dn_newprojid = ZFS_DEFAULT_PROJID;
	dn->dn_id_flags = 0;

	dn->dn_dbufs_count = 0;
	avl_create(&dn->dn_dbufs, dbuf_compare, sizeof (dmu_buf_impl_t),
	offsetof(dmu_buf_impl_t, db_link));

	dn->dn_moved = 0;
	return (0);
	}

	/* ARGSUSED */
	static void
	dnode_dest(void arg, void unused)
	{
	int i;
	dnode_t *dn = arg;

	rw_destroy(&dn->dn_struct_rwlock);
	mutex_destroy(&dn->dn_mtx);
	mutex_destroy(&dn->dn_dbufs_mtx);
	cv_destroy(&dn->dn_notxholds);
	cv_destroy(&dn->dn_nodnholds);
	zfs_refcount_destroy(&dn->dn_holds);
	zfs_refcount_destroy(&dn->dn_tx_holds);
	ASSERT(!list_link_active(&dn->dn_link));

	for (i = 0; i < TXG_SIZE; i++) {
	ASSERT(!multilist_link_active(&dn->dn_dirty_link[i]));
	ASSERT3P(dn->dn_free_ranges[i], ==, NULL);
	list_destroy(&dn->dn_dirty_records[i]);
	ASSERT0(dn->dn_next_nblkptr[i]);
	ASSERT0(dn->dn_next_nlevels[i]);
	ASSERT0(dn->dn_next_indblkshift[i]);
	ASSERT0(dn->dn_next_bonustype[i]);
	ASSERT0(dn->dn_rm_spillblk[i]);
	ASSERT0(dn->dn_next_bonuslen[i]);
	ASSERT0(dn->dn_next_blksz[i]);
	ASSERT0(dn->dn_next_maxblkid[i]);
	}

	ASSERT0(dn->dn_allocated_txg);
	ASSERT0(dn->dn_free_txg);
	ASSERT0(dn->dn_assigned_txg);
	ASSERT0(dn->dn_dirty_txg);
	ASSERT0(dn->dn_dirtyctx);
	ASSERT3P(dn->dn_dirtyctx_firstset, ==, NULL);
	ASSERT3P(dn->dn_bonus, ==, NULL);
	ASSERT(!dn->dn_have_spill);
	ASSERT3P(dn->dn_zio, ==, NULL);
	ASSERT0(dn->dn_oldused);
	ASSERT0(dn->dn_oldflags);
	ASSERT0(dn->dn_olduid);
	ASSERT0(dn->dn_oldgid);
	ASSERT0(dn->dn_oldprojid);
	ASSERT0(dn->dn_newuid);
	ASSERT0(dn->dn_newgid);
	ASSERT0(dn->dn_newprojid);
	ASSERT0(dn->dn_id_flags);

	ASSERT0(dn->dn_dbufs_count);
	avl_destroy(&dn->dn_dbufs);
	}

	void
	dnode_init(void)
	{
	ASSERT(dnode_cache == NULL);
	dnode_cache = kmem_cache_create("dnode_t", sizeof (dnode_t),
	0, dnode_cons, dnode_dest, NULL, NULL, NULL, 0);
	kmem_cache_set_move(dnode_cache, dnode_move);

	dnode_ksp = kstat_create("zfs", 0, "dnodestats", "misc",
	KSTAT_TYPE_NAMED, sizeof (dnode_stats) / sizeof (kstat_named_t),
	KSTAT_FLAG_VIRTUAL);
	if (dnode_ksp != NULL) {
	dnode_ksp->ks_data = &dnode_stats;
	kstat_install(dnode_ksp);
	}
	}

	void
	dnode_fini(void)
	{
	if (dnode_ksp != NULL) {
	kstat_delete(dnode_ksp);
	dnode_ksp = NULL;
	}

	kmem_cache_destroy(dnode_cache);
	dnode_cache = NULL;
	}


	#ifdef ZFS_DEBUG
	void
	dnode_verify(dnode_t *dn)
	{
	int drop_struct_lock = FALSE;

	ASSERT(dn->dn_phys);
	ASSERT(dn->dn_objset);
	ASSERT(dn->dn_handle->dnh_dnode == dn);

	ASSERT(DMU_OT_IS_VALID(dn->dn_phys->dn_type));

	if (!(zfs_flags & ZFS_DEBUG_DNODE_VERIFY))
	return;

	if (!RW_WRITE_HELD(&dn->dn_struct_rwlock)) {
	rw_enter(&dn->dn_struct_rwlock, RW_READER);
	drop_struct_lock = TRUE;
	}
	if (dn->dn_phys->dn_type != DMU_OT_NONE \|\| dn->dn_allocated_txg != 0) {
	int i;
	int max_bonuslen = DN_SLOTS_TO_BONUSLEN(dn->dn_num_slots);
	ASSERT3U(dn->dn_indblkshift, <=, SPA_MAXBLOCKSHIFT);
	if (dn->dn_datablkshift) {
	ASSERT3U(dn->dn_datablkshift, >=, SPA_MINBLOCKSHIFT);
	ASSERT3U(dn->dn_datablkshift, <=, SPA_MAXBLOCKSHIFT);
	ASSERT3U(1<<dn->dn_datablkshift, ==, dn->dn_datablksz);
	}
	ASSERT3U(dn->dn_nlevels, <=, 30);
	ASSERT(DMU_OT_IS_VALID(dn->dn_type));
	ASSERT3U(dn->dn_nblkptr, >=, 1);
	ASSERT3U(dn->dn_nblkptr, <=, DN_MAX_NBLKPTR);
	ASSERT3U(dn->dn_bonuslen, <=, max_bonuslen);
	ASSERT3U(dn->dn_datablksz, ==,
	dn->dn_datablkszsec << SPA_MINBLOCKSHIFT);
	ASSERT3U(ISP2(dn->dn_datablksz), ==, dn->dn_datablkshift != 0);
	ASSERT3U((dn->dn_nblkptr - 1) * sizeof (blkptr_t) +
	dn->dn_bonuslen, <=, max_bonuslen);
	for (i = 0; i < TXG_SIZE; i++) {
	ASSERT3U(dn->dn_next_nlevels[i], <=, dn->dn_nlevels);
	}
	}
	if (dn->dn_phys->dn_type != DMU_OT_NONE)
	ASSERT3U(dn->dn_phys->dn_nlevels, <=, dn->dn_nlevels);
	ASSERT(DMU_OBJECT_IS_SPECIAL(dn->dn_object) \|\| dn->dn_dbuf != NULL);
	if (dn->dn_dbuf != NULL) {
	ASSERT3P(dn->dn_phys, ==,
	(dnode_phys_t *)dn->dn_dbuf->db.db_data +
	(dn->dn_object % (dn->dn_dbuf->db.db_size >> DNODE_SHIFT)));
	}
	if (drop_struct_lock)
	rw_exit(&dn->dn_struct_rwlock);
	}
	#endif

	void
	dnode_byteswap(dnode_phys_t *dnp)
	{
	uint64_t buf64 = (void)&dnp->dn_blkptr;
	int i;

	if (dnp->dn_type == DMU_OT_NONE) {
	bzero(dnp, sizeof (dnode_phys_t));
	return;
	}

	dnp->dn_datablkszsec = BSWAP_16(dnp->dn_datablkszsec);
	dnp->dn_bonuslen = BSWAP_16(dnp->dn_bonuslen);
	dnp->dn_extra_slots = BSWAP_8(dnp->dn_extra_slots);
	dnp->dn_maxblkid = BSWAP_64(dnp->dn_maxblkid);
	dnp->dn_used = BSWAP_64(dnp->dn_used);

	/*
	* dn_nblkptr is only one byte, so it's OK to read it in either
	* byte order. We can't read dn_bouslen.
	*/
	ASSERT(dnp->dn_indblkshift <= SPA_MAXBLOCKSHIFT);
	ASSERT(dnp->dn_nblkptr <= DN_MAX_NBLKPTR);
	for (i = 0; i < dnp->dn_nblkptr * sizeof (blkptr_t)/8; i++)
	buf64[i] = BSWAP_64(buf64[i]);

	/*
	* OK to check dn_bonuslen for zero, because it won't matter if
	* we have the wrong byte order. This is necessary because the
	* dnode dnode is smaller than a regular dnode.
	*/
	if (dnp->dn_bonuslen != 0) {
	/*
	* Note that the bonus length calculated here may be
	* longer than the actual bonus buffer. This is because
	* we always put the bonus buffer after the last block
	* pointer (instead of packing it against the end of the
	* dnode buffer).
	*/
	int off = (dnp->dn_nblkptr-1) * sizeof (blkptr_t);
	int slots = dnp->dn_extra_slots + 1;
	size_t len = DN_SLOTS_TO_BONUSLEN(slots) - off;
	dmu_object_byteswap_t byteswap;
	ASSERT(DMU_OT_IS_VALID(dnp->dn_bonustype));
	byteswap = DMU_OT_BYTESWAP(dnp->dn_bonustype);
	dmu_ot_byteswap[byteswap].ob_func(dnp->dn_bonus + off, len);
	}

	/* Swap SPILL block if we have one */
	if (dnp->dn_flags & DNODE_FLAG_SPILL_BLKPTR)
	byteswap_uint64_array(DN_SPILL_BLKPTR(dnp), sizeof (blkptr_t));
	}

	void
	dnode_buf_byteswap(void *vbuf, size_t size)
	{
	int i = 0;

	ASSERT3U(sizeof (dnode_phys_t), ==, (1<<DNODE_SHIFT));
	ASSERT((size & (sizeof (dnode_phys_t)-1)) == 0);

	while (i < size) {
	dnode_phys_t dnp = (void )(((char *)vbuf) + i);
	dnode_byteswap(dnp);

	i += DNODE_MIN_SIZE;
	if (dnp->dn_type != DMU_OT_NONE)
	i += dnp->dn_extra_slots * DNODE_MIN_SIZE;
	}
	}

	void
	dnode_setbonuslen(dnode_t dn, int newsize, dmu_tx_t tx)
	{
	ASSERT3U(zfs_refcount_count(&dn->dn_holds), >=, 1);

	dnode_setdirty(dn, tx);
	rw_enter(&dn->dn_struct_rwlock, RW_WRITER);
	ASSERT3U(newsize, <=, DN_SLOTS_TO_BONUSLEN(dn->dn_num_slots) -
	(dn->dn_nblkptr-1) * sizeof (blkptr_t));

	if (newsize < dn->dn_bonuslen) {
	/* clear any data after the end of the new size */
	size_t diff = dn->dn_bonuslen - newsize;
	char data_end = ((char )dn->dn_bonus->db.db_data) + newsize;
	bzero(data_end, diff);
	}

	dn->dn_bonuslen = newsize;
	if (newsize == 0)
	dn->dn_next_bonuslen[tx->tx_txg & TXG_MASK] = DN_ZERO_BONUSLEN;
	else
	dn->dn_next_bonuslen[tx->tx_txg & TXG_MASK] = dn->dn_bonuslen;
	rw_exit(&dn->dn_struct_rwlock);
	}

	void
	dnode_setbonus_type(dnode_t dn, dmu_object_type_t newtype, dmu_tx_t tx)
	{
	ASSERT3U(zfs_refcount_count(&dn->dn_holds), >=, 1);
	dnode_setdirty(dn, tx);
	rw_enter(&dn->dn_struct_rwlock, RW_WRITER);
	dn->dn_bonustype = newtype;
	dn->dn_next_bonustype[tx->tx_txg & TXG_MASK] = dn->dn_bonustype;
	rw_exit(&dn->dn_struct_rwlock);
	}

	void
	dnode_rm_spill(dnode_t dn, dmu_tx_t tx)
	{
	ASSERT3U(zfs_refcount_count(&dn->dn_holds), >=, 1);
	ASSERT(RW_WRITE_HELD(&dn->dn_struct_rwlock));
	dnode_setdirty(dn, tx);
	dn->dn_rm_spillblk[tx->tx_txg & TXG_MASK] = DN_KILL_SPILLBLK;
	dn->dn_have_spill = B_FALSE;
	}

	static void
	dnode_setdblksz(dnode_t *dn, int size)
	{
	ASSERT0(P2PHASE(size, SPA_MINBLOCKSIZE));
	ASSERT3U(size, <=, SPA_MAXBLOCKSIZE);
	ASSERT3U(size, >=, SPA_MINBLOCKSIZE);
	ASSERT3U(size >> SPA_MINBLOCKSHIFT, <,
	1<<(sizeof (dn->dn_phys->dn_datablkszsec) * 8));
	dn->dn_datablksz = size;
	dn->dn_datablkszsec = size >> SPA_MINBLOCKSHIFT;
	dn->dn_datablkshift = ISP2(size) ? highbit64(size - 1) : 0;
	}

	static dnode_t *
	dnode_create(objset_t os, dnode_phys_t dnp, dmu_buf_impl_t *db,
	uint64_t object, dnode_handle_t *dnh)
	{
	dnode_t *dn;

	dn = kmem_cache_alloc(dnode_cache, KM_SLEEP);
	dn->dn_moved = 0;

	/*
	* Defer setting dn_objset until the dnode is ready to be a candidate
	* for the dnode_move() callback.
	*/
	dn->dn_object = object;
	dn->dn_dbuf = db;
	dn->dn_handle = dnh;
	dn->dn_phys = dnp;

	if (dnp->dn_datablkszsec) {
	dnode_setdblksz(dn, dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
	} else {
	dn->dn_datablksz = 0;
	dn->dn_datablkszsec = 0;
	dn->dn_datablkshift = 0;
	}
	dn->dn_indblkshift = dnp->dn_indblkshift;
	dn->dn_nlevels = dnp->dn_nlevels;
	dn->dn_type = dnp->dn_type;
	dn->dn_nblkptr = dnp->dn_nblkptr;
	dn->dn_checksum = dnp->dn_checksum;
	dn->dn_compress = dnp->dn_compress;
	dn->dn_bonustype = dnp->dn_bonustype;
	dn->dn_bonuslen = dnp->dn_bonuslen;
	dn->dn_num_slots = dnp->dn_extra_slots + 1;
	dn->dn_maxblkid = dnp->dn_maxblkid;
	dn->dn_have_spill = ((dnp->dn_flags & DNODE_FLAG_SPILL_BLKPTR) != 0);
	dn->dn_id_flags = 0;

	dmu_zfetch_init(&dn->dn_zfetch, dn);

	ASSERT(DMU_OT_IS_VALID(dn->dn_phys->dn_type));
	ASSERT(zrl_is_locked(&dnh->dnh_zrlock));
	ASSERT(!DN_SLOT_IS_PTR(dnh->dnh_dnode));

	mutex_enter(&os->os_lock);

	/*
	* Exclude special dnodes from os_dnodes so an empty os_dnodes
	* signifies that the special dnodes have no references from
	* their children (the entries in os_dnodes). This allows
	* dnode_destroy() to easily determine if the last child has
	* been removed and then complete eviction of the objset.
	*/
	if (!DMU_OBJECT_IS_SPECIAL(object))
	list_insert_head(&os->os_dnodes, dn);
	membar_producer();

	/*
	* Everything else must be valid before assigning dn_objset
	* makes the dnode eligible for dnode_move().
	*/
	dn->dn_objset = os;

	dnh->dnh_dnode = dn;
	mutex_exit(&os->os_lock);

	arc_space_consume(sizeof (dnode_t), ARC_SPACE_DNODE);

	return (dn);
	}

	/*
	* Caller must be holding the dnode handle, which is released upon return.
	*/
	static void
	dnode_destroy(dnode_t *dn)
	{
	objset_t *os = dn->dn_objset;
	boolean_t complete_os_eviction = B_FALSE;

	ASSERT((dn->dn_id_flags & DN_ID_NEW_EXIST) == 0);

	mutex_enter(&os->os_lock);
	POINTER_INVALIDATE(&dn->dn_objset);
	if (!DMU_OBJECT_IS_SPECIAL(dn->dn_object)) {
	list_remove(&os->os_dnodes, dn);
	complete_os_eviction =
	list_is_empty(&os->os_dnodes) &&
	list_link_active(&os->os_evicting_node);
	}
	mutex_exit(&os->os_lock);

	/* the dnode can no longer move, so we can release the handle */
	if (!zrl_is_locked(&dn->dn_handle->dnh_zrlock))
	zrl_remove(&dn->dn_handle->dnh_zrlock);

	dn->dn_allocated_txg = 0;
	dn->dn_free_txg = 0;
	dn->dn_assigned_txg = 0;
	dn->dn_dirty_txg = 0;

	dn->dn_dirtyctx = 0;
	dn->dn_dirtyctx_firstset = NULL;
	if (dn->dn_bonus != NULL) {
	mutex_enter(&dn->dn_bonus->db_mtx);
	dbuf_destroy(dn->dn_bonus);
	dn->dn_bonus = NULL;
	}
	dn->dn_zio = NULL;

	dn->dn_have_spill = B_FALSE;
	dn->dn_oldused = 0;
	dn->dn_oldflags = 0;
	dn->dn_olduid = 0;
	dn->dn_oldgid = 0;
	dn->dn_oldprojid = ZFS_DEFAULT_PROJID;
	dn->dn_newuid = 0;
	dn->dn_newgid = 0;
	dn->dn_newprojid = ZFS_DEFAULT_PROJID;
	dn->dn_id_flags = 0;

	dmu_zfetch_fini(&dn->dn_zfetch);
	kmem_cache_free(dnode_cache, dn);
	arc_space_return(sizeof (dnode_t), ARC_SPACE_DNODE);

	if (complete_os_eviction)
	dmu_objset_evict_done(os);
	}

	void
	dnode_allocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, int ibs,
	dmu_object_type_t bonustype, int bonuslen, int dn_slots, dmu_tx_t *tx)
	{
	int i;

	ASSERT3U(dn_slots, >, 0);
	ASSERT3U(dn_slots << DNODE_SHIFT, <=,
	spa_maxdnodesize(dmu_objset_spa(dn->dn_objset)));
	ASSERT3U(blocksize, <=,
	spa_maxblocksize(dmu_objset_spa(dn->dn_objset)));
	if (blocksize == 0)
	blocksize = 1 << zfs_default_bs;
	else
	blocksize = P2ROUNDUP(blocksize, SPA_MINBLOCKSIZE);

	if (ibs == 0)
	ibs = zfs_default_ibs;

	ibs = MIN(MAX(ibs, DN_MIN_INDBLKSHIFT), DN_MAX_INDBLKSHIFT);

	dprintf("os=%p obj=%llu txg=%llu blocksize=%d ibs=%d dn_slots=%d\n",
	dn->dn_objset, dn->dn_object, tx->tx_txg, blocksize, ibs, dn_slots);
	DNODE_STAT_BUMP(dnode_allocate);

	ASSERT(dn->dn_type == DMU_OT_NONE);
	ASSERT(bcmp(dn->dn_phys, &dnode_phys_zero, sizeof (dnode_phys_t)) == 0);
	ASSERT(dn->dn_phys->dn_type == DMU_OT_NONE);
	ASSERT(ot != DMU_OT_NONE);
	ASSERT(DMU_OT_IS_VALID(ot));
	ASSERT((bonustype == DMU_OT_NONE && bonuslen == 0) \|\|
	(bonustype == DMU_OT_SA && bonuslen == 0) \|\|
	(bonustype != DMU_OT_NONE && bonuslen != 0));
	ASSERT(DMU_OT_IS_VALID(bonustype));
	ASSERT3U(bonuslen, <=, DN_SLOTS_TO_BONUSLEN(dn_slots));
	ASSERT(dn->dn_type == DMU_OT_NONE);
	ASSERT0(dn->dn_maxblkid);
	ASSERT0(dn->dn_allocated_txg);
	ASSERT0(dn->dn_assigned_txg);
	ASSERT(zfs_refcount_is_zero(&dn->dn_tx_holds));
	ASSERT3U(zfs_refcount_count(&dn->dn_holds), <=, 1);
	ASSERT(avl_is_empty(&dn->dn_dbufs));

	for (i = 0; i < TXG_SIZE; i++) {
	ASSERT0(dn->dn_next_nblkptr[i]);
	ASSERT0(dn->dn_next_nlevels[i]);
	ASSERT0(dn->dn_next_indblkshift[i]);
	ASSERT0(dn->dn_next_bonuslen[i]);
	ASSERT0(dn->dn_next_bonustype[i]);
	ASSERT0(dn->dn_rm_spillblk[i]);
	ASSERT0(dn->dn_next_blksz[i]);
	ASSERT0(dn->dn_next_maxblkid[i]);
	ASSERT(!multilist_link_active(&dn->dn_dirty_link[i]));
	ASSERT3P(list_head(&dn->dn_dirty_records[i]), ==, NULL);
	ASSERT3P(dn->dn_free_ranges[i], ==, NULL);
	}

	dn->dn_type = ot;
	dnode_setdblksz(dn, blocksize);
	dn->dn_indblkshift = ibs;
	dn->dn_nlevels = 1;
	dn->dn_num_slots = dn_slots;
	if (bonustype == DMU_OT_SA) /* Maximize bonus space for SA */
	dn->dn_nblkptr = 1;
	else {
	dn->dn_nblkptr = MIN(DN_MAX_NBLKPTR,
	1 + ((DN_SLOTS_TO_BONUSLEN(dn_slots) - bonuslen) >>
	SPA_BLKPTRSHIFT));
	}

	dn->dn_bonustype = bonustype;
	dn->dn_bonuslen = bonuslen;
	dn->dn_checksum = ZIO_CHECKSUM_INHERIT;
	dn->dn_compress = ZIO_COMPRESS_INHERIT;
	dn->dn_dirtyctx = 0;

	dn->dn_free_txg = 0;
	dn->dn_dirtyctx_firstset = NULL;
	dn->dn_dirty_txg = 0;

	dn->dn_allocated_txg = tx->tx_txg;
	dn->dn_id_flags = 0;

	dnode_setdirty(dn, tx);
	dn->dn_next_indblkshift[tx->tx_txg & TXG_MASK] = ibs;
	dn->dn_next_bonuslen[tx->tx_txg & TXG_MASK] = dn->dn_bonuslen;
	dn->dn_next_bonustype[tx->tx_txg & TXG_MASK] = dn->dn_bonustype;
	dn->dn_next_blksz[tx->tx_txg & TXG_MASK] = dn->dn_datablksz;
	}

	void
	dnode_reallocate(dnode_t *dn, dmu_object_type_t ot, int blocksize,
	dmu_object_type_t bonustype, int bonuslen, int dn_slots,
	boolean_t keep_spill, dmu_tx_t *tx)
	{
	int nblkptr;

	ASSERT3U(blocksize, >=, SPA_MINBLOCKSIZE);
	ASSERT3U(blocksize, <=,
	spa_maxblocksize(dmu_objset_spa(dn->dn_objset)));
	ASSERT0(blocksize % SPA_MINBLOCKSIZE);
	ASSERT(dn->dn_object != DMU_META_DNODE_OBJECT \|\| dmu_tx_private_ok(tx));
	ASSERT(tx->tx_txg != 0);
	ASSERT((bonustype == DMU_OT_NONE && bonuslen == 0) \|\|
	(bonustype != DMU_OT_NONE && bonuslen != 0) \|\|
	(bonustype == DMU_OT_SA && bonuslen == 0));
	ASSERT(DMU_OT_IS_VALID(bonustype));
	ASSERT3U(bonuslen, <=,
	DN_BONUS_SIZE(spa_maxdnodesize(dmu_objset_spa(dn->dn_objset))));
	ASSERT3U(bonuslen, <=, DN_BONUS_SIZE(dn_slots << DNODE_SHIFT));

	dnode_free_interior_slots(dn);
	DNODE_STAT_BUMP(dnode_reallocate);

	/* clean up any unreferenced dbufs */
	dnode_evict_dbufs(dn);

	dn->dn_id_flags = 0;

	rw_enter(&dn->dn_struct_rwlock, RW_WRITER);
	dnode_setdirty(dn, tx);
	if (dn->dn_datablksz != blocksize) {
	/* change blocksize */
	ASSERT0(dn->dn_maxblkid);
	ASSERT(BP_IS_HOLE(&dn->dn_phys->dn_blkptr[0]) \|\|
	dnode_block_freed(dn, 0));

	dnode_setdblksz(dn, blocksize);
	dn->dn_next_blksz[tx->tx_txg & TXG_MASK] = blocksize;
	}
	if (dn->dn_bonuslen != bonuslen)
	dn->dn_next_bonuslen[tx->tx_txg & TXG_MASK] = bonuslen;

	if (bonustype == DMU_OT_SA) /* Maximize bonus space for SA */
	nblkptr = 1;
	else
	nblkptr = MIN(DN_MAX_NBLKPTR,
	1 + ((DN_SLOTS_TO_BONUSLEN(dn_slots) - bonuslen) >>
	SPA_BLKPTRSHIFT));
	if (dn->dn_bonustype != bonustype)
	dn->dn_next_bonustype[tx->tx_txg & TXG_MASK] = bonustype;
	if (dn->dn_nblkptr != nblkptr)
	dn->dn_next_nblkptr[tx->tx_txg & TXG_MASK] = nblkptr;
	if (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR && !keep_spill) {
	dbuf_rm_spill(dn, tx);
	dnode_rm_spill(dn, tx);
	}

	rw_exit(&dn->dn_struct_rwlock);

	/* change type */
	dn->dn_type = ot;

	/* change bonus size and type */
	mutex_enter(&dn->dn_mtx);
	dn->dn_bonustype = bonustype;
	dn->dn_bonuslen = bonuslen;
	dn->dn_num_slots = dn_slots;
	dn->dn_nblkptr = nblkptr;
	dn->dn_checksum = ZIO_CHECKSUM_INHERIT;
	dn->dn_compress = ZIO_COMPRESS_INHERIT;
	ASSERT3U(dn->dn_nblkptr, <=, DN_MAX_NBLKPTR);

	/* fix up the bonus db_size */
	if (dn->dn_bonus) {
	dn->dn_bonus->db.db_size =
	DN_SLOTS_TO_BONUSLEN(dn->dn_num_slots) -
	(dn->dn_nblkptr-1) * sizeof (blkptr_t);
	ASSERT(dn->dn_bonuslen <= dn->dn_bonus->db.db_size);
	}

	dn->dn_allocated_txg = tx->tx_txg;
	mutex_exit(&dn->dn_mtx);
	}

	#ifdef _KERNEL
	static void
	dnode_move_impl(dnode_t odn, dnode_t ndn)
	{
	int i;

	ASSERT(!RW_LOCK_HELD(&odn->dn_struct_rwlock));
	ASSERT(MUTEX_NOT_HELD(&odn->dn_mtx));
	ASSERT(MUTEX_NOT_HELD(&odn->dn_dbufs_mtx));

	/* Copy fields. */
	ndn->dn_objset = odn->dn_objset;
	ndn->dn_object = odn->dn_object;
	ndn->dn_dbuf = odn->dn_dbuf;
	ndn->dn_handle = odn->dn_handle;
	ndn->dn_phys = odn->dn_phys;
	ndn->dn_type = odn->dn_type;
	ndn->dn_bonuslen = odn->dn_bonuslen;
	ndn->dn_bonustype = odn->dn_bonustype;
	ndn->dn_nblkptr = odn->dn_nblkptr;
	ndn->dn_checksum = odn->dn_checksum;
	ndn->dn_compress = odn->dn_compress;
	ndn->dn_nlevels = odn->dn_nlevels;
	ndn->dn_indblkshift = odn->dn_indblkshift;
	ndn->dn_datablkshift = odn->dn_datablkshift;
	ndn->dn_datablkszsec = odn->dn_datablkszsec;
	ndn->dn_datablksz = odn->dn_datablksz;
	ndn->dn_maxblkid = odn->dn_maxblkid;
	ndn->dn_num_slots = odn->dn_num_slots;
	bcopy(&odn->dn_next_type[0], &ndn->dn_next_type[0],
	sizeof (odn->dn_next_type));
	bcopy(&odn->dn_next_nblkptr[0], &ndn->dn_next_nblkptr[0],
	sizeof (odn->dn_next_nblkptr));
	bcopy(&odn->dn_next_nlevels[0], &ndn->dn_next_nlevels[0],
	sizeof (odn->dn_next_nlevels));
	bcopy(&odn->dn_next_indblkshift[0], &ndn->dn_next_indblkshift[0],
	sizeof (odn->dn_next_indblkshift));
	bcopy(&odn->dn_next_bonustype[0], &ndn->dn_next_bonustype[0],
	sizeof (odn->dn_next_bonustype));
	bcopy(&odn->dn_rm_spillblk[0], &ndn->dn_rm_spillblk[0],
	sizeof (odn->dn_rm_spillblk));
	bcopy(&odn->dn_next_bonuslen[0], &ndn->dn_next_bonuslen[0],
	sizeof (odn->dn_next_bonuslen));
	bcopy(&odn->dn_next_blksz[0], &ndn->dn_next_blksz[0],
	sizeof (odn->dn_next_blksz));
	bcopy(&odn->dn_next_maxblkid[0], &ndn->dn_next_maxblkid[0],
	sizeof (odn->dn_next_maxblkid));
	for (i = 0; i < TXG_SIZE; i++) {
	list_move_tail(&ndn->dn_dirty_records[i],
	&odn->dn_dirty_records[i]);
	}
	bcopy(&odn->dn_free_ranges[0], &ndn->dn_free_ranges[0],
	sizeof (odn->dn_free_ranges));
	ndn->dn_allocated_txg = odn->dn_allocated_txg;
	ndn->dn_free_txg = odn->dn_free_txg;
	ndn->dn_assigned_txg = odn->dn_assigned_txg;
	ndn->dn_dirty_txg = odn->dn_dirty_txg;
	ndn->dn_dirtyctx = odn->dn_dirtyctx;
	ndn->dn_dirtyctx_firstset = odn->dn_dirtyctx_firstset;
	ASSERT(zfs_refcount_count(&odn->dn_tx_holds) == 0);
	zfs_refcount_transfer(&ndn->dn_holds, &odn->dn_holds);
	ASSERT(avl_is_empty(&ndn->dn_dbufs));
	avl_swap(&ndn->dn_dbufs, &odn->dn_dbufs);
	ndn->dn_dbufs_count = odn->dn_dbufs_count;
	ndn->dn_bonus = odn->dn_bonus;
	ndn->dn_have_spill = odn->dn_have_spill;
	ndn->dn_zio = odn->dn_zio;
	ndn->dn_oldused = odn->dn_oldused;
	ndn->dn_oldflags = odn->dn_oldflags;
	ndn->dn_olduid = odn->dn_olduid;
	ndn->dn_oldgid = odn->dn_oldgid;
	ndn->dn_oldprojid = odn->dn_oldprojid;
	ndn->dn_newuid = odn->dn_newuid;
	ndn->dn_newgid = odn->dn_newgid;
	ndn->dn_newprojid = odn->dn_newprojid;
	ndn->dn_id_flags = odn->dn_id_flags;
	dmu_zfetch_init(&ndn->dn_zfetch, ndn);

	/*
	* Update back pointers. Updating the handle fixes the back pointer of
	* every descendant dbuf as well as the bonus dbuf.
	*/
	ASSERT(ndn->dn_handle->dnh_dnode == odn);
	ndn->dn_handle->dnh_dnode = ndn;

	/*
	* Invalidate the original dnode by clearing all of its back pointers.
	*/
	odn->dn_dbuf = NULL;
	odn->dn_handle = NULL;
	avl_create(&odn->dn_dbufs, dbuf_compare, sizeof (dmu_buf_impl_t),
	offsetof(dmu_buf_impl_t, db_link));
	odn->dn_dbufs_count = 0;
	odn->dn_bonus = NULL;
	dmu_zfetch_fini(&odn->dn_zfetch);

	/*
	* Set the low bit of the objset pointer to ensure that dnode_move()
	* recognizes the dnode as invalid in any subsequent callback.
	*/
	POINTER_INVALIDATE(&odn->dn_objset);

	/*
	* Satisfy the destructor.
	*/
	for (i = 0; i < TXG_SIZE; i++) {
	list_create(&odn->dn_dirty_records[i],
	sizeof (dbuf_dirty_record_t),
	offsetof(dbuf_dirty_record_t, dr_dirty_node));
	odn->dn_free_ranges[i] = NULL;
	odn->dn_next_nlevels[i] = 0;
	odn->dn_next_indblkshift[i] = 0;
	odn->dn_next_bonustype[i] = 0;
	odn->dn_rm_spillblk[i] = 0;
	odn->dn_next_bonuslen[i] = 0;
	odn->dn_next_blksz[i] = 0;
	}
	odn->dn_allocated_txg = 0;
	odn->dn_free_txg = 0;
	odn->dn_assigned_txg = 0;
	odn->dn_dirty_txg = 0;
	odn->dn_dirtyctx = 0;
	odn->dn_dirtyctx_firstset = NULL;
	odn->dn_have_spill = B_FALSE;
	odn->dn_zio = NULL;
	odn->dn_oldused = 0;
	odn->dn_oldflags = 0;
	odn->dn_olduid = 0;
	odn->dn_oldgid = 0;
	odn->dn_oldprojid = ZFS_DEFAULT_PROJID;
	odn->dn_newuid = 0;
	odn->dn_newgid = 0;
	odn->dn_newprojid = ZFS_DEFAULT_PROJID;
	odn->dn_id_flags = 0;

	/*
	* Mark the dnode.
	*/
	ndn->dn_moved = 1;
	odn->dn_moved = (uint8_t)-1;
	}

	/ARGSUSED/
	static kmem_cbrc_t
	dnode_move(void buf, void newbuf, size_t size, void *arg)
	{
	dnode_t odn = buf, ndn = newbuf;
	objset_t *os;
	int64_t refcount;
	uint32_t dbufs;

	/*
	* The dnode is on the objset's list of known dnodes if the objset
	* pointer is valid. We set the low bit of the objset pointer when
	* freeing the dnode to invalidate it, and the memory patterns written
	* by kmem (baddcafe and deadbeef) set at least one of the two low bits.
	* A newly created dnode sets the objset pointer last of all to indicate
	* that the dnode is known and in a valid state to be moved by this
	* function.
	*/
	os = odn->dn_objset;
	if (!POINTER_IS_VALID(os)) {
	DNODE_STAT_BUMP(dnode_move_invalid);
	return (KMEM_CBRC_DONT_KNOW);
	}

	/*
	* Ensure that the objset does not go away during the move.
	*/
	rw_enter(&os_lock, RW_WRITER);
	if (os != odn->dn_objset) {
	rw_exit(&os_lock);
	DNODE_STAT_BUMP(dnode_move_recheck1);
	return (KMEM_CBRC_DONT_KNOW);
	}

	/*
	* If the dnode is still valid, then so is the objset. We know that no
	* valid objset can be freed while we hold os_lock, so we can safely
	* ensure that the objset remains in use.
	*/
	mutex_enter(&os->os_lock);

	/*
	* Recheck the objset pointer in case the dnode was removed just before
	* acquiring the lock.
	*/
	if (os != odn->dn_objset) {
	mutex_exit(&os->os_lock);
	rw_exit(&os_lock);
	DNODE_STAT_BUMP(dnode_move_recheck2);
	return (KMEM_CBRC_DONT_KNOW);
	}

	/*
	* At this point we know that as long as we hold os->os_lock, the dnode
	* cannot be freed and fields within the dnode can be safely accessed.
	* The objset listing this dnode cannot go away as long as this dnode is
	* on its list.
	*/
	rw_exit(&os_lock);
	if (DMU_OBJECT_IS_SPECIAL(odn->dn_object)) {
	mutex_exit(&os->os_lock);
	DNODE_STAT_BUMP(dnode_move_special);
	return (KMEM_CBRC_NO);
	}
	ASSERT(odn->dn_dbuf != NULL); /* only "special" dnodes have no parent */

	/*
	* Lock the dnode handle to prevent the dnode from obtaining any new
	* holds. This also prevents the descendant dbufs and the bonus dbuf
	* from accessing the dnode, so that we can discount their holds. The
	* handle is safe to access because we know that while the dnode cannot
	* go away, neither can its handle. Once we hold dnh_zrlock, we can
	* safely move any dnode referenced only by dbufs.
	*/
	if (!zrl_tryenter(&odn->dn_handle->dnh_zrlock)) {
	mutex_exit(&os->os_lock);
	DNODE_STAT_BUMP(dnode_move_handle);
	return (KMEM_CBRC_LATER);
	}

	/*
	* Ensure a consistent view of the dnode's holds and the dnode's dbufs.
	* We need to guarantee that there is a hold for every dbuf in order to
	* determine whether the dnode is actively referenced. Falsely matching
	* a dbuf to an active hold would lead to an unsafe move. It's possible
	* that a thread already having an active dnode hold is about to add a
	* dbuf, and we can't compare hold and dbuf counts while the add is in
	* progress.
	*/
	if (!rw_tryenter(&odn->dn_struct_rwlock, RW_WRITER)) {
	zrl_exit(&odn->dn_handle->dnh_zrlock);
	mutex_exit(&os->os_lock);
	DNODE_STAT_BUMP(dnode_move_rwlock);
	return (KMEM_CBRC_LATER);
	}

	/*
	* A dbuf may be removed (evicted) without an active dnode hold. In that
	* case, the dbuf count is decremented under the handle lock before the
	* dbuf's hold is released. This order ensures that if we count the hold
	* after the dbuf is removed but before its hold is released, we will
	* treat the unmatched hold as active and exit safely. If we count the
	* hold before the dbuf is removed, the hold is discounted, and the
	* removal is blocked until the move completes.
	*/
	refcount = zfs_refcount_count(&odn->dn_holds);
	ASSERT(refcount >= 0);
	dbufs = DN_DBUFS_COUNT(odn);

	/* We can't have more dbufs than dnode holds. */
	ASSERT3U(dbufs, <=, refcount);
	DTRACE_PROBE3(dnode__move, dnode_t *, odn, int64_t, refcount,
	uint32_t, dbufs);

	if (refcount > dbufs) {
	rw_exit(&odn->dn_struct_rwlock);
	zrl_exit(&odn->dn_handle->dnh_zrlock);
	mutex_exit(&os->os_lock);
	DNODE_STAT_BUMP(dnode_move_active);
	return (KMEM_CBRC_LATER);
	}

	rw_exit(&odn->dn_struct_rwlock);

	/*
	* At this point we know that anyone with a hold on the dnode is not
	* actively referencing it. The dnode is known and in a valid state to
	* move. We're holding the locks needed to execute the critical section.
	*/
	dnode_move_impl(odn, ndn);

	list_link_replace(&odn->dn_link, &ndn->dn_link);
	/* If the dnode was safe to move, the refcount cannot have changed. */
	ASSERT(refcount == zfs_refcount_count(&ndn->dn_holds));
	ASSERT(dbufs == DN_DBUFS_COUNT(ndn));
	zrl_exit(&ndn->dn_handle->dnh_zrlock); /* handle has moved */
	mutex_exit(&os->os_lock);

	return (KMEM_CBRC_YES);
	}
	#endif /* _KERNEL */

	static void
	dnode_slots_hold(dnode_children_t *children, int idx, int slots)
	{
	ASSERT3S(idx + slots, <=, DNODES_PER_BLOCK);

	for (int i = idx; i < idx + slots; i++) {
	dnode_handle_t *dnh = &children->dnc_children[i];
	zrl_add(&dnh->dnh_zrlock);
	}
	}

	static void
	dnode_slots_rele(dnode_children_t *children, int idx, int slots)
	{
	ASSERT3S(idx + slots, <=, DNODES_PER_BLOCK);

	for (int i = idx; i < idx + slots; i++) {
	dnode_handle_t *dnh = &children->dnc_children[i];

	if (zrl_is_locked(&dnh->dnh_zrlock))
	zrl_exit(&dnh->dnh_zrlock);
	else
	zrl_remove(&dnh->dnh_zrlock);
	}
	}

	static int
	dnode_slots_tryenter(dnode_children_t *children, int idx, int slots)
	{
	ASSERT3S(idx + slots, <=, DNODES_PER_BLOCK);

	for (int i = idx; i < idx + slots; i++) {
	dnode_handle_t *dnh = &children->dnc_children[i];

	if (!zrl_tryenter(&dnh->dnh_zrlock)) {
	for (int j = idx; j < i; j++) {
	dnh = &children->dnc_children[j];
	zrl_exit(&dnh->dnh_zrlock);
	}

	return (0);
	}
	}

	return (1);
	}

	static void
	dnode_set_slots(dnode_children_t children, int idx, int slots, void ptr)
	{
	ASSERT3S(idx + slots, <=, DNODES_PER_BLOCK);

	for (int i = idx; i < idx + slots; i++) {
	dnode_handle_t *dnh = &children->dnc_children[i];
	dnh->dnh_dnode = ptr;
	}
	}

	static boolean_t
	dnode_check_slots_free(dnode_children_t *children, int idx, int slots)
	{
	ASSERT3S(idx + slots, <=, DNODES_PER_BLOCK);

	/*
	* If all dnode slots are either already free or
	* evictable return B_TRUE.
	*/
	for (int i = idx; i < idx + slots; i++) {
	dnode_handle_t *dnh = &children->dnc_children[i];
	dnode_t *dn = dnh->dnh_dnode;

	if (dn == DN_SLOT_FREE) {
	continue;
	} else if (DN_SLOT_IS_PTR(dn)) {
	mutex_enter(&dn->dn_mtx);
	boolean_t can_free = (dn->dn_type == DMU_OT_NONE &&
	zfs_refcount_is_zero(&dn->dn_holds) &&
	!DNODE_IS_DIRTY(dn));
	mutex_exit(&dn->dn_mtx);

	if (!can_free)
	return (B_FALSE);
	else
	continue;
	} else {
	return (B_FALSE);
	}
	}

	return (B_TRUE);
	}

	static void
	dnode_reclaim_slots(dnode_children_t *children, int idx, int slots)
	{
	ASSERT3S(idx + slots, <=, DNODES_PER_BLOCK);

	for (int i = idx; i < idx + slots; i++) {
	dnode_handle_t *dnh = &children->dnc_children[i];

	ASSERT(zrl_is_locked(&dnh->dnh_zrlock));

	if (DN_SLOT_IS_PTR(dnh->dnh_dnode)) {
	ASSERT3S(dnh->dnh_dnode->dn_type, ==, DMU_OT_NONE);
	dnode_destroy(dnh->dnh_dnode);
	dnh->dnh_dnode = DN_SLOT_FREE;
	}
	}
	}

	void
	dnode_free_interior_slots(dnode_t *dn)
	{
	dnode_children_t *children = dmu_buf_get_user(&dn->dn_dbuf->db);
	int epb = dn->dn_dbuf->db.db_size >> DNODE_SHIFT;
	int idx = (dn->dn_object & (epb - 1)) + 1;
	int slots = dn->dn_num_slots - 1;

	if (slots == 0)
	return;

	ASSERT3S(idx + slots, <=, DNODES_PER_BLOCK);

	while (!dnode_slots_tryenter(children, idx, slots)) {
	DNODE_STAT_BUMP(dnode_free_interior_lock_retry);
	cond_resched();
	}

	dnode_set_slots(children, idx, slots, DN_SLOT_FREE);
	dnode_slots_rele(children, idx, slots);
	}

	void
	dnode_special_close(dnode_handle_t *dnh)
	{
	dnode_t *dn = dnh->dnh_dnode;

	/*
	* Ensure dnode_rele_and_unlock() has released dn_mtx, after final
	* zfs_refcount_remove()
	*/
	mutex_enter(&dn->dn_mtx);
	if (zfs_refcount_count(&dn->dn_holds) > 0)
	cv_wait(&dn->dn_nodnholds, &dn->dn_mtx);
	mutex_exit(&dn->dn_mtx);
	ASSERT3U(zfs_refcount_count(&dn->dn_holds), ==, 0);

	ASSERT(dn->dn_dbuf == NULL \|\|
	dmu_buf_get_user(&dn->dn_dbuf->db) == NULL);
	zrl_add(&dnh->dnh_zrlock);
	dnode_destroy(dn); /* implicit zrl_remove() */
	zrl_destroy(&dnh->dnh_zrlock);
	dnh->dnh_dnode = NULL;
	}

	void
	dnode_special_open(objset_t os, dnode_phys_t dnp, uint64_t object,
	dnode_handle_t *dnh)
	{
	dnode_t *dn;

	zrl_init(&dnh->dnh_zrlock);
	VERIFY3U(1, ==, zrl_tryenter(&dnh->dnh_zrlock));

	dn = dnode_create(os, dnp, NULL, object, dnh);
	DNODE_VERIFY(dn);

	zrl_exit(&dnh->dnh_zrlock);
	}

	static void
	dnode_buf_evict_async(void *dbu)
	{
	dnode_children_t *dnc = dbu;

	DNODE_STAT_BUMP(dnode_buf_evict);

	for (int i = 0; i < dnc->dnc_count; i++) {
	dnode_handle_t *dnh = &dnc->dnc_children[i];
	dnode_t *dn;

	/*
	* The dnode handle lock guards against the dnode moving to
	* another valid address, so there is no need here to guard
	* against changes to or from NULL.
	*/
	if (!DN_SLOT_IS_PTR(dnh->dnh_dnode)) {
	zrl_destroy(&dnh->dnh_zrlock);
	dnh->dnh_dnode = DN_SLOT_UNINIT;
	continue;
	}

	zrl_add(&dnh->dnh_zrlock);
	dn = dnh->dnh_dnode;
	/*
	* If there are holds on this dnode, then there should
	* be holds on the dnode's containing dbuf as well; thus
	* it wouldn't be eligible for eviction and this function
	* would not have been called.
	*/
	ASSERT(zfs_refcount_is_zero(&dn->dn_holds));
	ASSERT(zfs_refcount_is_zero(&dn->dn_tx_holds));

	dnode_destroy(dn); /* implicit zrl_remove() for first slot */
	zrl_destroy(&dnh->dnh_zrlock);
	dnh->dnh_dnode = DN_SLOT_UNINIT;
	}
	kmem_free(dnc, sizeof (dnode_children_t) +
	dnc->dnc_count * sizeof (dnode_handle_t));
	}

	/*
	* When the DNODE_MUST_BE_FREE flag is set, the "slots" parameter is used
	* to ensure the hole at the specified object offset is large enough to
	* hold the dnode being created. The slots parameter is also used to ensure
	* a dnode does not span multiple dnode blocks. In both of these cases, if
	* a failure occurs, ENOSPC is returned. Keep in mind, these failure cases
	* are only possible when using DNODE_MUST_BE_FREE.
	*
	* If the DNODE_MUST_BE_ALLOCATED flag is set, "slots" must be 0.
	* dnode_hold_impl() will check if the requested dnode is already consumed
	* as an extra dnode slot by an large dnode, in which case it returns
	* ENOENT.
	*
	* If the DNODE_DRY_RUN flag is set, we don't actually hold the dnode, just
	* return whether the hold would succeed or not. tag and dnp should set to
	* NULL in this case.
	*
	* errors:
	* EINVAL - Invalid object number or flags.
	* ENOSPC - Hole too small to fulfill "slots" request (DNODE_MUST_BE_FREE)
	* EEXIST - Refers to an allocated dnode (DNODE_MUST_BE_FREE)
	* - Refers to a freeing dnode (DNODE_MUST_BE_FREE)
	* - Refers to an interior dnode slot (DNODE_MUST_BE_ALLOCATED)
	* ENOENT - The requested dnode is not allocated (DNODE_MUST_BE_ALLOCATED)
	* - The requested dnode is being freed (DNODE_MUST_BE_ALLOCATED)
	* EIO - I/O error when reading the meta dnode dbuf.
	*
	* succeeds even for free dnodes.
	*/
	int
	dnode_hold_impl(objset_t *os, uint64_t object, int flag, int slots,
	void tag, dnode_t *dnp)
	{
	int epb, idx, err;
	int drop_struct_lock = FALSE;
	int type;
	uint64_t blk;
	dnode_t mdn, dn;
	dmu_buf_impl_t *db;
	dnode_children_t *dnc;
	dnode_phys_t *dn_block;
	dnode_handle_t *dnh;

	ASSERT(!(flag & DNODE_MUST_BE_ALLOCATED) \|\| (slots == 0));
	ASSERT(!(flag & DNODE_MUST_BE_FREE) \|\| (slots > 0));
	IMPLY(flag & DNODE_DRY_RUN, (tag == NULL) && (dnp == NULL));

	/*
	* If you are holding the spa config lock as writer, you shouldn't
	* be asking the DMU to do anything unless it's the root pool
	* which may require us to read from the root filesystem while
	* holding some (not all) of the locks as writer.
	*/
	ASSERT(spa_config_held(os->os_spa, SCL_ALL, RW_WRITER) == 0 \|\|
	(spa_is_root(os->os_spa) &&
	spa_config_held(os->os_spa, SCL_STATE, RW_WRITER)));

	ASSERT((flag & DNODE_MUST_BE_ALLOCATED) \|\| (flag & DNODE_MUST_BE_FREE));

	if (object == DMU_USERUSED_OBJECT \|\| object == DMU_GROUPUSED_OBJECT \|\|
	object == DMU_PROJECTUSED_OBJECT) {
	if (object == DMU_USERUSED_OBJECT)
	dn = DMU_USERUSED_DNODE(os);
	else if (object == DMU_GROUPUSED_OBJECT)
	dn = DMU_GROUPUSED_DNODE(os);
	else
	dn = DMU_PROJECTUSED_DNODE(os);
	if (dn == NULL)
	return (SET_ERROR(ENOENT));
	type = dn->dn_type;
	if ((flag & DNODE_MUST_BE_ALLOCATED) && type == DMU_OT_NONE)
	return (SET_ERROR(ENOENT));
	if ((flag & DNODE_MUST_BE_FREE) && type != DMU_OT_NONE)
	return (SET_ERROR(EEXIST));
	DNODE_VERIFY(dn);
	/* Don't actually hold if dry run, just return 0 */
	if (!(flag & DNODE_DRY_RUN)) {
	(void) zfs_refcount_add(&dn->dn_holds, tag);
	*dnp = dn;
	}
	return (0);
	}

	if (object == 0 \|\| object >= DN_MAX_OBJECT)
	return (SET_ERROR(EINVAL));

	mdn = DMU_META_DNODE(os);
	ASSERT(mdn->dn_object == DMU_META_DNODE_OBJECT);

	DNODE_VERIFY(mdn);

	if (!RW_WRITE_HELD(&mdn->dn_struct_rwlock)) {
	rw_enter(&mdn->dn_struct_rwlock, RW_READER);
	drop_struct_lock = TRUE;
	}

	blk = dbuf_whichblock(mdn, 0, object * sizeof (dnode_phys_t));
	db = dbuf_hold(mdn, blk, FTAG);
	if (drop_struct_lock)
	rw_exit(&mdn->dn_struct_rwlock);
	if (db == NULL) {
	DNODE_STAT_BUMP(dnode_hold_dbuf_hold);
	return (SET_ERROR(EIO));
	}

	/*
	* We do not need to decrypt to read the dnode so it doesn't matter
	* if we get the encrypted or decrypted version.
	*/
	err = dbuf_read(db, NULL, DB_RF_CANFAIL \|
	DB_RF_NO_DECRYPT \| DB_RF_NOPREFETCH);
	if (err) {
	DNODE_STAT_BUMP(dnode_hold_dbuf_read);
	dbuf_rele(db, FTAG);
	return (err);
	}

	ASSERT3U(db->db.db_size, >=, 1<<DNODE_SHIFT);
	epb = db->db.db_size >> DNODE_SHIFT;

	idx = object & (epb - 1);
	dn_block = (dnode_phys_t *)db->db.db_data;

	ASSERT(DB_DNODE(db)->dn_type == DMU_OT_DNODE);
	dnc = dmu_buf_get_user(&db->db);
	dnh = NULL;
	if (dnc == NULL) {
	dnode_children_t *winner;
	int skip = 0;

	dnc = kmem_zalloc(sizeof (dnode_children_t) +
	epb * sizeof (dnode_handle_t), KM_SLEEP);
	dnc->dnc_count = epb;
	dnh = &dnc->dnc_children[0];

	/* Initialize dnode slot status from dnode_phys_t */
	for (int i = 0; i < epb; i++) {
	zrl_init(&dnh[i].dnh_zrlock);

	if (skip) {
	skip--;
	continue;
	}

	if (dn_block[i].dn_type != DMU_OT_NONE) {
	int interior = dn_block[i].dn_extra_slots;

	dnode_set_slots(dnc, i, 1, DN_SLOT_ALLOCATED);
	dnode_set_slots(dnc, i + 1, interior,
	DN_SLOT_INTERIOR);
	skip = interior;
	} else {
	dnh[i].dnh_dnode = DN_SLOT_FREE;
	skip = 0;
	}
	}

	dmu_buf_init_user(&dnc->dnc_dbu, NULL,
	dnode_buf_evict_async, NULL);
	winner = dmu_buf_set_user(&db->db, &dnc->dnc_dbu);
	if (winner != NULL) {

	for (int i = 0; i < epb; i++)
	zrl_destroy(&dnh[i].dnh_zrlock);

	kmem_free(dnc, sizeof (dnode_children_t) +
	epb * sizeof (dnode_handle_t));
	dnc = winner;
	}
	}

	ASSERT(dnc->dnc_count == epb);

	if (flag & DNODE_MUST_BE_ALLOCATED) {
	slots = 1;

	dnode_slots_hold(dnc, idx, slots);
	dnh = &dnc->dnc_children[idx];

	if (DN_SLOT_IS_PTR(dnh->dnh_dnode)) {
	dn = dnh->dnh_dnode;
	} else if (dnh->dnh_dnode == DN_SLOT_INTERIOR) {
	DNODE_STAT_BUMP(dnode_hold_alloc_interior);
	dnode_slots_rele(dnc, idx, slots);
	dbuf_rele(db, FTAG);
	return (SET_ERROR(EEXIST));
	} else if (dnh->dnh_dnode != DN_SLOT_ALLOCATED) {
	DNODE_STAT_BUMP(dnode_hold_alloc_misses);
	dnode_slots_rele(dnc, idx, slots);
	dbuf_rele(db, FTAG);
	return (SET_ERROR(ENOENT));
	} else {
	dnode_slots_rele(dnc, idx, slots);
	while (!dnode_slots_tryenter(dnc, idx, slots)) {
	DNODE_STAT_BUMP(dnode_hold_alloc_lock_retry);
	cond_resched();
	}

	/*
	* Someone else won the race and called dnode_create()
	* after we checked DN_SLOT_IS_PTR() above but before
	* we acquired the lock.
	*/
	if (DN_SLOT_IS_PTR(dnh->dnh_dnode)) {
	DNODE_STAT_BUMP(dnode_hold_alloc_lock_misses);
	dn = dnh->dnh_dnode;
	} else {
	dn = dnode_create(os, dn_block + idx, db,
	object, dnh);
	}
	}

	mutex_enter(&dn->dn_mtx);
	if (dn->dn_type == DMU_OT_NONE \|\| dn->dn_free_txg != 0) {
	DNODE_STAT_BUMP(dnode_hold_alloc_type_none);
	mutex_exit(&dn->dn_mtx);
	dnode_slots_rele(dnc, idx, slots);
	dbuf_rele(db, FTAG);
	return (SET_ERROR(ENOENT));
	}

	/* Don't actually hold if dry run, just return 0 */
	if (flag & DNODE_DRY_RUN) {
	mutex_exit(&dn->dn_mtx);
	dnode_slots_rele(dnc, idx, slots);
	dbuf_rele(db, FTAG);
	return (0);
	}

	DNODE_STAT_BUMP(dnode_hold_alloc_hits);
	} else if (flag & DNODE_MUST_BE_FREE) {

	if (idx + slots - 1 >= DNODES_PER_BLOCK) {
	DNODE_STAT_BUMP(dnode_hold_free_overflow);
	dbuf_rele(db, FTAG);
	return (SET_ERROR(ENOSPC));
	}

	dnode_slots_hold(dnc, idx, slots);

	if (!dnode_check_slots_free(dnc, idx, slots)) {
	DNODE_STAT_BUMP(dnode_hold_free_misses);
	dnode_slots_rele(dnc, idx, slots);
	dbuf_rele(db, FTAG);
	return (SET_ERROR(ENOSPC));
	}

	dnode_slots_rele(dnc, idx, slots);
	while (!dnode_slots_tryenter(dnc, idx, slots)) {
	DNODE_STAT_BUMP(dnode_hold_free_lock_retry);
	cond_resched();
	}

	if (!dnode_check_slots_free(dnc, idx, slots)) {
	DNODE_STAT_BUMP(dnode_hold_free_lock_misses);
	dnode_slots_rele(dnc, idx, slots);
	dbuf_rele(db, FTAG);
	return (SET_ERROR(ENOSPC));
	}

	/*
	* Allocated but otherwise free dnodes which would
	* be in the interior of a multi-slot dnodes need
	* to be freed. Single slot dnodes can be safely
	* re-purposed as a performance optimization.
	*/
	if (slots > 1)
	dnode_reclaim_slots(dnc, idx + 1, slots - 1);

	dnh = &dnc->dnc_children[idx];
	if (DN_SLOT_IS_PTR(dnh->dnh_dnode)) {
	dn = dnh->dnh_dnode;
	} else {
	dn = dnode_create(os, dn_block + idx, db,
	object, dnh);
	}

	mutex_enter(&dn->dn_mtx);
	if (!zfs_refcount_is_zero(&dn->dn_holds) \|\| dn->dn_free_txg) {
	DNODE_STAT_BUMP(dnode_hold_free_refcount);
	mutex_exit(&dn->dn_mtx);
	dnode_slots_rele(dnc, idx, slots);
	dbuf_rele(db, FTAG);
	return (SET_ERROR(EEXIST));
	}

	/* Don't actually hold if dry run, just return 0 */
	if (flag & DNODE_DRY_RUN) {
	mutex_exit(&dn->dn_mtx);
	dnode_slots_rele(dnc, idx, slots);
	dbuf_rele(db, FTAG);
	return (0);
	}

	dnode_set_slots(dnc, idx + 1, slots - 1, DN_SLOT_INTERIOR);
	DNODE_STAT_BUMP(dnode_hold_free_hits);
	} else {
	dbuf_rele(db, FTAG);
	return (SET_ERROR(EINVAL));
	}

	ASSERT0(dn->dn_free_txg);

	if (zfs_refcount_add(&dn->dn_holds, tag) == 1)
	dbuf_add_ref(db, dnh);

	mutex_exit(&dn->dn_mtx);

	/* Now we can rely on the hold to prevent the dnode from moving. */
	dnode_slots_rele(dnc, idx, slots);

	DNODE_VERIFY(dn);
	ASSERT3P(dnp, !=, NULL);
	ASSERT3P(dn->dn_dbuf, ==, db);
	ASSERT3U(dn->dn_object, ==, object);
	dbuf_rele(db, FTAG);

	*dnp = dn;
	return (0);
	}

	/*
	* Return held dnode if the object is allocated, NULL if not.
	*/
	int
	dnode_hold(objset_t os, uint64_t object, void tag, dnode_t **dnp)
	{
	return (dnode_hold_impl(os, object, DNODE_MUST_BE_ALLOCATED, 0, tag,
	dnp));
	}

	/*
	* Can only add a reference if there is already at least one
	* reference on the dnode. Returns FALSE if unable to add a
	* new reference.
	*/
	boolean_t
	dnode_add_ref(dnode_t dn, void tag)
	{
	mutex_enter(&dn->dn_mtx);
	if (zfs_refcount_is_zero(&dn->dn_holds)) {
	mutex_exit(&dn->dn_mtx);
	return (FALSE);
	}
	VERIFY(1 < zfs_refcount_add(&dn->dn_holds, tag));
	mutex_exit(&dn->dn_mtx);
	return (TRUE);
	}

	void
	dnode_rele(dnode_t dn, void tag)
	{
	mutex_enter(&dn->dn_mtx);
	dnode_rele_and_unlock(dn, tag, B_FALSE);
	}

	void
	dnode_rele_and_unlock(dnode_t dn, void tag, boolean_t evicting)
	{
	uint64_t refs;
	/* Get while the hold prevents the dnode from moving. */
	dmu_buf_impl_t *db = dn->dn_dbuf;
	dnode_handle_t *dnh = dn->dn_handle;

	refs = zfs_refcount_remove(&dn->dn_holds, tag);
	if (refs == 0)
	cv_broadcast(&dn->dn_nodnholds);
	mutex_exit(&dn->dn_mtx);
	/* dnode could get destroyed at this point, so don't use it anymore */

	/*
	* It's unsafe to release the last hold on a dnode by dnode_rele() or
	* indirectly by dbuf_rele() while relying on the dnode handle to
	* prevent the dnode from moving, since releasing the last hold could
	* result in the dnode's parent dbuf evicting its dnode handles. For
	* that reason anyone calling dnode_rele() or dbuf_rele() without some
	* other direct or indirect hold on the dnode must first drop the dnode
	* handle.
	*/
	ASSERT(refs > 0 \|\| dnh->dnh_zrlock.zr_owner != curthread);

	/* NOTE: the DNODE_DNODE does not have a dn_dbuf */
	if (refs == 0 && db != NULL) {
	/*
	* Another thread could add a hold to the dnode handle in
	* dnode_hold_impl() while holding the parent dbuf. Since the
	* hold on the parent dbuf prevents the handle from being
	* destroyed, the hold on the handle is OK. We can't yet assert
	* that the handle has zero references, but that will be
	* asserted anyway when the handle gets destroyed.
	*/
	mutex_enter(&db->db_mtx);
	dbuf_rele_and_unlock(db, dnh, evicting);
	}
	}

	/*
	* Test whether we can create a dnode at the specified location.
	*/
	int
	dnode_try_claim(objset_t *os, uint64_t object, int slots)
	{
	return (dnode_hold_impl(os, object, DNODE_MUST_BE_FREE \| DNODE_DRY_RUN,
	slots, NULL, NULL));
	}

	void
	dnode_setdirty(dnode_t dn, dmu_tx_t tx)
	{
	objset_t *os = dn->dn_objset;
	uint64_t txg = tx->tx_txg;

	if (DMU_OBJECT_IS_SPECIAL(dn->dn_object)) {
	dsl_dataset_dirty(os->os_dsl_dataset, tx);
	return;
	}

	DNODE_VERIFY(dn);

	#ifdef ZFS_DEBUG
	mutex_enter(&dn->dn_mtx);
	ASSERT(dn->dn_phys->dn_type \|\| dn->dn_allocated_txg);
	ASSERT(dn->dn_free_txg == 0 \|\| dn->dn_free_txg >= txg);
	mutex_exit(&dn->dn_mtx);
	#endif

	/*
	* Determine old uid/gid when necessary
	*/
	dmu_objset_userquota_get_ids(dn, B_TRUE, tx);

	- multilist_t *dirtylist = os->os_dirty_dnodes[txg & TXG_MASK];
	+ multilist_t *dirtylist = &os->os_dirty_dnodes[txg & TXG_MASK];
	multilist_sublist_t *mls = multilist_sublist_lock_obj(dirtylist, dn);

	/*
	* If we are already marked dirty, we're done.
	*/
	if (multilist_link_active(&dn->dn_dirty_link[txg & TXG_MASK])) {
	multilist_sublist_unlock(mls);
	return;
	}

	ASSERT(!zfs_refcount_is_zero(&dn->dn_holds) \|\|
	!avl_is_empty(&dn->dn_dbufs));
	ASSERT(dn->dn_datablksz != 0);
	ASSERT0(dn->dn_next_bonuslen[txg & TXG_MASK]);
	ASSERT0(dn->dn_next_blksz[txg & TXG_MASK]);
	ASSERT0(dn->dn_next_bonustype[txg & TXG_MASK]);

	dprintf_ds(os->os_dsl_dataset, "obj=%llu txg=%llu\n",
	dn->dn_object, txg);

	multilist_sublist_insert_head(mls, dn);

	multilist_sublist_unlock(mls);

	/*
	* The dnode maintains a hold on its containing dbuf as
	* long as there are holds on it. Each instantiated child
	* dbuf maintains a hold on the dnode. When the last child
	* drops its hold, the dnode will drop its hold on the
	* containing dbuf. We add a "dirty hold" here so that the
	* dnode will hang around after we finish processing its
	* children.
	*/
	VERIFY(dnode_add_ref(dn, (void *)(uintptr_t)tx->tx_txg));

	(void) dbuf_dirty(dn->dn_dbuf, tx);

	dsl_dataset_dirty(os->os_dsl_dataset, tx);
	}

	void
	dnode_free(dnode_t dn, dmu_tx_t tx)
	{
	mutex_enter(&dn->dn_mtx);
	if (dn->dn_type == DMU_OT_NONE \|\| dn->dn_free_txg) {
	mutex_exit(&dn->dn_mtx);
	return;
	}
	dn->dn_free_txg = tx->tx_txg;
	mutex_exit(&dn->dn_mtx);

	dnode_setdirty(dn, tx);
	}

	/*
	* Try to change the block size for the indicated dnode. This can only
	* succeed if there are no blocks allocated or dirty beyond first block
	*/
	int
	dnode_set_blksz(dnode_t dn, uint64_t size, int ibs, dmu_tx_t tx)
	{
	dmu_buf_impl_t *db;
	int err;

	ASSERT3U(size, <=, spa_maxblocksize(dmu_objset_spa(dn->dn_objset)));
	if (size == 0)
	size = SPA_MINBLOCKSIZE;
	else
	size = P2ROUNDUP(size, SPA_MINBLOCKSIZE);

	if (ibs == dn->dn_indblkshift)
	ibs = 0;

	if (size >> SPA_MINBLOCKSHIFT == dn->dn_datablkszsec && ibs == 0)
	return (0);

	rw_enter(&dn->dn_struct_rwlock, RW_WRITER);

	/* Check for any allocated blocks beyond the first */
	if (dn->dn_maxblkid != 0)
	goto fail;

	mutex_enter(&dn->dn_dbufs_mtx);
	for (db = avl_first(&dn->dn_dbufs); db != NULL;
	db = AVL_NEXT(&dn->dn_dbufs, db)) {
	if (db->db_blkid != 0 && db->db_blkid != DMU_BONUS_BLKID &&
	db->db_blkid != DMU_SPILL_BLKID) {
	mutex_exit(&dn->dn_dbufs_mtx);
	goto fail;
	}
	}
	mutex_exit(&dn->dn_dbufs_mtx);

	if (ibs && dn->dn_nlevels != 1)
	goto fail;

	/* resize the old block */
	err = dbuf_hold_impl(dn, 0, 0, TRUE, FALSE, FTAG, &db);
	if (err == 0) {
	dbuf_new_size(db, size, tx);
	} else if (err != ENOENT) {
	goto fail;
	}

	dnode_setdblksz(dn, size);
	dnode_setdirty(dn, tx);
	dn->dn_next_blksz[tx->tx_txg&TXG_MASK] = size;
	if (ibs) {
	dn->dn_indblkshift = ibs;
	dn->dn_next_indblkshift[tx->tx_txg&TXG_MASK] = ibs;
	}
	/* release after we have fixed the blocksize in the dnode */
	if (db)
	dbuf_rele(db, FTAG);

	rw_exit(&dn->dn_struct_rwlock);
	return (0);

	fail:
	rw_exit(&dn->dn_struct_rwlock);
	return (SET_ERROR(ENOTSUP));
	}

	static void
	dnode_set_nlevels_impl(dnode_t dn, int new_nlevels, dmu_tx_t tx)
	{
	uint64_t txgoff = tx->tx_txg & TXG_MASK;
	int old_nlevels = dn->dn_nlevels;
	dmu_buf_impl_t *db;
	list_t *list;
	dbuf_dirty_record_t new, dr, *dr_next;

	ASSERT(RW_WRITE_HELD(&dn->dn_struct_rwlock));

	ASSERT3U(new_nlevels, >, dn->dn_nlevels);
	dn->dn_nlevels = new_nlevels;

	ASSERT3U(new_nlevels, >, dn->dn_next_nlevels[txgoff]);
	dn->dn_next_nlevels[txgoff] = new_nlevels;

	/* dirty the left indirects */
	db = dbuf_hold_level(dn, old_nlevels, 0, FTAG);
	ASSERT(db != NULL);
	new = dbuf_dirty(db, tx);
	dbuf_rele(db, FTAG);

	/* transfer the dirty records to the new indirect */
	mutex_enter(&dn->dn_mtx);
	mutex_enter(&new->dt.di.dr_mtx);
	list = &dn->dn_dirty_records[txgoff];
	for (dr = list_head(list); dr; dr = dr_next) {
	dr_next = list_next(&dn->dn_dirty_records[txgoff], dr);

	IMPLY(dr->dr_dbuf == NULL, old_nlevels == 1);
	if (dr->dr_dbuf == NULL \|\|
	(dr->dr_dbuf->db_level == old_nlevels - 1 &&
	dr->dr_dbuf->db_blkid != DMU_BONUS_BLKID &&
	dr->dr_dbuf->db_blkid != DMU_SPILL_BLKID)) {
	list_remove(&dn->dn_dirty_records[txgoff], dr);
	list_insert_tail(&new->dt.di.dr_children, dr);
	dr->dr_parent = new;
	}
	}
	mutex_exit(&new->dt.di.dr_mtx);
	mutex_exit(&dn->dn_mtx);
	}

	int
	dnode_set_nlevels(dnode_t dn, int nlevels, dmu_tx_t tx)
	{
	int ret = 0;

	rw_enter(&dn->dn_struct_rwlock, RW_WRITER);

	if (dn->dn_nlevels == nlevels) {
	ret = 0;
	goto out;
	} else if (nlevels < dn->dn_nlevels) {
	ret = SET_ERROR(EINVAL);
	goto out;
	}

	dnode_set_nlevels_impl(dn, nlevels, tx);

	out:
	rw_exit(&dn->dn_struct_rwlock);
	return (ret);
	}

	/* read-holding callers must not rely on the lock being continuously held */
	void
	dnode_new_blkid(dnode_t dn, uint64_t blkid, dmu_tx_t tx, boolean_t have_read,
	boolean_t force)
	{
	int epbs, new_nlevels;
	uint64_t sz;

	ASSERT(blkid != DMU_BONUS_BLKID);

	ASSERT(have_read ?
	RW_READ_HELD(&dn->dn_struct_rwlock) :
	RW_WRITE_HELD(&dn->dn_struct_rwlock));

	/*
	* if we have a read-lock, check to see if we need to do any work
	* before upgrading to a write-lock.
	*/
	if (have_read) {
	if (blkid <= dn->dn_maxblkid)
	return;

	if (!rw_tryupgrade(&dn->dn_struct_rwlock)) {
	rw_exit(&dn->dn_struct_rwlock);
	rw_enter(&dn->dn_struct_rwlock, RW_WRITER);
	}
	}

	/*
	* Raw sends (indicated by the force flag) require that we take the
	* given blkid even if the value is lower than the current value.
	*/
	if (!force && blkid <= dn->dn_maxblkid)
	goto out;

	/*
	* We use the (otherwise unused) top bit of dn_next_maxblkid[txgoff]
	* to indicate that this field is set. This allows us to set the
	* maxblkid to 0 on an existing object in dnode_sync().
	*/
	dn->dn_maxblkid = blkid;
	dn->dn_next_maxblkid[tx->tx_txg & TXG_MASK] =
	blkid \| DMU_NEXT_MAXBLKID_SET;

	/*
	* Compute the number of levels necessary to support the new maxblkid.
	* Raw sends will ensure nlevels is set correctly for us.
	*/
	new_nlevels = 1;
	epbs = dn->dn_indblkshift - SPA_BLKPTRSHIFT;
	for (sz = dn->dn_nblkptr;
	sz <= blkid && sz >= dn->dn_nblkptr; sz <<= epbs)
	new_nlevels++;

	ASSERT3U(new_nlevels, <=, DN_MAX_LEVELS);

	if (!force) {
	if (new_nlevels > dn->dn_nlevels)
	dnode_set_nlevels_impl(dn, new_nlevels, tx);
	} else {
	ASSERT3U(dn->dn_nlevels, >=, new_nlevels);
	}

	out:
	if (have_read)
	rw_downgrade(&dn->dn_struct_rwlock);
	}

	static void
	dnode_dirty_l1(dnode_t dn, uint64_t l1blkid, dmu_tx_t tx)
	{
	dmu_buf_impl_t *db = dbuf_hold_level(dn, 1, l1blkid, FTAG);
	if (db != NULL) {
	dmu_buf_will_dirty(&db->db, tx);
	dbuf_rele(db, FTAG);
	}
	}

	/*
	* Dirty all the in-core level-1 dbufs in the range specified by start_blkid
	* and end_blkid.
	*/
	static void
	dnode_dirty_l1range(dnode_t *dn, uint64_t start_blkid, uint64_t end_blkid,
	dmu_tx_t *tx)
	{
	dmu_buf_impl_t *db_search;
	dmu_buf_impl_t *db;
	avl_index_t where;

	db_search = kmem_zalloc(sizeof (dmu_buf_impl_t), KM_SLEEP);

	mutex_enter(&dn->dn_dbufs_mtx);

	db_search->db_level = 1;
	db_search->db_blkid = start_blkid + 1;
	db_search->db_state = DB_SEARCH;
	for (;;) {

	db = avl_find(&dn->dn_dbufs, db_search, &where);
	if (db == NULL)
	db = avl_nearest(&dn->dn_dbufs, where, AVL_AFTER);

	if (db == NULL \|\| db->db_level != 1 \|\|
	db->db_blkid >= end_blkid) {
	break;
	}

	/*
	* Setup the next blkid we want to search for.
	*/
	db_search->db_blkid = db->db_blkid + 1;
	ASSERT3U(db->db_blkid, >=, start_blkid);

	/*
	* If the dbuf transitions to DB_EVICTING while we're trying
	* to dirty it, then we will be unable to discover it in
	* the dbuf hash table. This will result in a call to
	* dbuf_create() which needs to acquire the dn_dbufs_mtx
	* lock. To avoid a deadlock, we drop the lock before
	* dirtying the level-1 dbuf.
	*/
	mutex_exit(&dn->dn_dbufs_mtx);
	dnode_dirty_l1(dn, db->db_blkid, tx);
	mutex_enter(&dn->dn_dbufs_mtx);
	}

	#ifdef ZFS_DEBUG
	/*
	* Walk all the in-core level-1 dbufs and verify they have been dirtied.
	*/
	db_search->db_level = 1;
	db_search->db_blkid = start_blkid + 1;
	db_search->db_state = DB_SEARCH;
	db = avl_find(&dn->dn_dbufs, db_search, &where);
	if (db == NULL)
	db = avl_nearest(&dn->dn_dbufs, where, AVL_AFTER);
	for (; db != NULL; db = AVL_NEXT(&dn->dn_dbufs, db)) {
	if (db->db_level != 1 \|\| db->db_blkid >= end_blkid)
	break;
	if (db->db_state != DB_EVICTING)
	ASSERT(db->db_dirtycnt > 0);
	}
	#endif
	kmem_free(db_search, sizeof (dmu_buf_impl_t));
	mutex_exit(&dn->dn_dbufs_mtx);
	}

	void
	dnode_set_dirtyctx(dnode_t dn, dmu_tx_t tx, void *tag)
	{
	/*
	* Don't set dirtyctx to SYNC if we're just modifying this as we
	* initialize the objset.
	*/
	if (dn->dn_dirtyctx == DN_UNDIRTIED) {
	dsl_dataset_t *ds = dn->dn_objset->os_dsl_dataset;

	if (ds != NULL) {
	rrw_enter(&ds->ds_bp_rwlock, RW_READER, tag);
	}
	if (!BP_IS_HOLE(dn->dn_objset->os_rootbp)) {
	if (dmu_tx_is_syncing(tx))
	dn->dn_dirtyctx = DN_DIRTY_SYNC;
	else
	dn->dn_dirtyctx = DN_DIRTY_OPEN;
	dn->dn_dirtyctx_firstset = tag;
	}
	if (ds != NULL) {
	rrw_exit(&ds->ds_bp_rwlock, tag);
	}
	}
	}

	void
	dnode_free_range(dnode_t dn, uint64_t off, uint64_t len, dmu_tx_t tx)
	{
	dmu_buf_impl_t *db;
	uint64_t blkoff, blkid, nblks;
	int blksz, blkshift, head, tail;
	int trunc = FALSE;
	int epbs;

	blksz = dn->dn_datablksz;
	blkshift = dn->dn_datablkshift;
	epbs = dn->dn_indblkshift - SPA_BLKPTRSHIFT;

	if (len == DMU_OBJECT_END) {
	len = UINT64_MAX - off;
	trunc = TRUE;
	}

	/*
	* First, block align the region to free:
	*/
	if (ISP2(blksz)) {
	head = P2NPHASE(off, blksz);
	blkoff = P2PHASE(off, blksz);
	if ((off >> blkshift) > dn->dn_maxblkid)
	return;
	} else {
	ASSERT(dn->dn_maxblkid == 0);
	if (off == 0 && len >= blksz) {
	/*
	* Freeing the whole block; fast-track this request.
	*/
	blkid = 0;
	nblks = 1;
	if (dn->dn_nlevels > 1) {
	rw_enter(&dn->dn_struct_rwlock, RW_WRITER);
	dnode_dirty_l1(dn, 0, tx);
	rw_exit(&dn->dn_struct_rwlock);
	}
	goto done;
	} else if (off >= blksz) {
	/* Freeing past end-of-data */
	return;
	} else {
	/* Freeing part of the block. */
	head = blksz - off;
	ASSERT3U(head, >, 0);
	}
	blkoff = off;
	}
	/* zero out any partial block data at the start of the range */
	if (head) {
	int res;
	ASSERT3U(blkoff + head, ==, blksz);
	if (len < head)
	head = len;
	rw_enter(&dn->dn_struct_rwlock, RW_READER);
	res = dbuf_hold_impl(dn, 0, dbuf_whichblock(dn, 0, off),
	TRUE, FALSE, FTAG, &db);
	rw_exit(&dn->dn_struct_rwlock);
	if (res == 0) {
	caddr_t data;
	boolean_t dirty;

	db_lock_type_t dblt = dmu_buf_lock_parent(db, RW_READER,
	FTAG);
	/* don't dirty if it isn't on disk and isn't dirty */
	dirty = !list_is_empty(&db->db_dirty_records) \|\|
	(db->db_blkptr && !BP_IS_HOLE(db->db_blkptr));
	dmu_buf_unlock_parent(db, dblt, FTAG);
	if (dirty) {
	dmu_buf_will_dirty(&db->db, tx);
	data = db->db.db_data;
	bzero(data + blkoff, head);
	}
	dbuf_rele(db, FTAG);
	}
	off += head;
	len -= head;
	}

	/* If the range was less than one block, we're done */
	if (len == 0)
	return;

	/* If the remaining range is past end of file, we're done */
	if ((off >> blkshift) > dn->dn_maxblkid)
	return;

	ASSERT(ISP2(blksz));
	if (trunc)
	tail = 0;
	else
	tail = P2PHASE(len, blksz);

	ASSERT0(P2PHASE(off, blksz));
	/* zero out any partial block data at the end of the range */
	if (tail) {
	int res;
	if (len < tail)
	tail = len;
	rw_enter(&dn->dn_struct_rwlock, RW_READER);
	res = dbuf_hold_impl(dn, 0, dbuf_whichblock(dn, 0, off+len),
	TRUE, FALSE, FTAG, &db);
	rw_exit(&dn->dn_struct_rwlock);
	if (res == 0) {
	boolean_t dirty;
	/* don't dirty if not on disk and not dirty */
	db_lock_type_t type = dmu_buf_lock_parent(db, RW_READER,
	FTAG);
	dirty = !list_is_empty(&db->db_dirty_records) \|\|
	(db->db_blkptr && !BP_IS_HOLE(db->db_blkptr));
	dmu_buf_unlock_parent(db, type, FTAG);
	if (dirty) {
	dmu_buf_will_dirty(&db->db, tx);
	bzero(db->db.db_data, tail);
	}
	dbuf_rele(db, FTAG);
	}
	len -= tail;
	}

	/* If the range did not include a full block, we are done */
	if (len == 0)
	return;

	ASSERT(IS_P2ALIGNED(off, blksz));
	ASSERT(trunc \|\| IS_P2ALIGNED(len, blksz));
	blkid = off >> blkshift;
	nblks = len >> blkshift;
	if (trunc)
	nblks += 1;

	/*
	* Dirty all the indirect blocks in this range. Note that only
	* the first and last indirect blocks can actually be written
	* (if they were partially freed) -- they must be dirtied, even if
	* they do not exist on disk yet. The interior blocks will
	* be freed by free_children(), so they will not actually be written.
	* Even though these interior blocks will not be written, we
	* dirty them for two reasons:
	*
	* - It ensures that the indirect blocks remain in memory until
	* syncing context. (They have already been prefetched by
	* dmu_tx_hold_free(), so we don't have to worry about reading
	* them serially here.)
	*
	* - The dirty space accounting will put pressure on the txg sync
	* mechanism to begin syncing, and to delay transactions if there
	* is a large amount of freeing. Even though these indirect
	* blocks will not be written, we could need to write the same
	* amount of space if we copy the freed BPs into deadlists.
	*/
	if (dn->dn_nlevels > 1) {
	rw_enter(&dn->dn_struct_rwlock, RW_WRITER);
	uint64_t first, last;

	first = blkid >> epbs;
	dnode_dirty_l1(dn, first, tx);
	if (trunc)
	last = dn->dn_maxblkid >> epbs;
	else
	last = (blkid + nblks - 1) >> epbs;
	if (last != first)
	dnode_dirty_l1(dn, last, tx);

	dnode_dirty_l1range(dn, first, last, tx);

	int shift = dn->dn_datablkshift + dn->dn_indblkshift -
	SPA_BLKPTRSHIFT;
	for (uint64_t i = first + 1; i < last; i++) {
	/*
	* Set i to the blockid of the next non-hole
	* level-1 indirect block at or after i. Note
	* that dnode_next_offset() operates in terms of
	* level-0-equivalent bytes.
	*/
	uint64_t ibyte = i << shift;
	int err = dnode_next_offset(dn, DNODE_FIND_HAVELOCK,
	&ibyte, 2, 1, 0);
	i = ibyte >> shift;
	if (i >= last)
	break;

	/*
	* Normally we should not see an error, either
	* from dnode_next_offset() or dbuf_hold_level()
	* (except for ESRCH from dnode_next_offset).
	* If there is an i/o error, then when we read
	* this block in syncing context, it will use
	* ZIO_FLAG_MUSTSUCCEED, and thus hang/panic according
	* to the "failmode" property. dnode_next_offset()
	* doesn't have a flag to indicate MUSTSUCCEED.
	*/
	if (err != 0)
	break;

	dnode_dirty_l1(dn, i, tx);
	}
	rw_exit(&dn->dn_struct_rwlock);
	}

	done:
	/*
	* Add this range to the dnode range list.
	* We will finish up this free operation in the syncing phase.
	*/
	mutex_enter(&dn->dn_mtx);
	{
	int txgoff = tx->tx_txg & TXG_MASK;
	if (dn->dn_free_ranges[txgoff] == NULL) {
	dn->dn_free_ranges[txgoff] = range_tree_create(NULL,
	RANGE_SEG64, NULL, 0, 0);
	}
	range_tree_clear(dn->dn_free_ranges[txgoff], blkid, nblks);
	range_tree_add(dn->dn_free_ranges[txgoff], blkid, nblks);
	}
	dprintf_dnode(dn, "blkid=%llu nblks=%llu txg=%llu\n",
	blkid, nblks, tx->tx_txg);
	mutex_exit(&dn->dn_mtx);

	dbuf_free_range(dn, blkid, blkid + nblks - 1, tx);
	dnode_setdirty(dn, tx);
	}

	static boolean_t
	dnode_spill_freed(dnode_t *dn)
	{
	int i;

	mutex_enter(&dn->dn_mtx);
	for (i = 0; i < TXG_SIZE; i++) {
	if (dn->dn_rm_spillblk[i] == DN_KILL_SPILLBLK)
	break;
	}
	mutex_exit(&dn->dn_mtx);
	return (i < TXG_SIZE);
	}

	/* return TRUE if this blkid was freed in a recent txg, or FALSE if it wasn't */
	uint64_t
	dnode_block_freed(dnode_t *dn, uint64_t blkid)
	{
	void *dp = spa_get_dsl(dn->dn_objset->os_spa);
	int i;

	if (blkid == DMU_BONUS_BLKID)
	return (FALSE);

	/*
	* If we're in the process of opening the pool, dp will not be
	* set yet, but there shouldn't be anything dirty.
	*/
	if (dp == NULL)
	return (FALSE);

	if (dn->dn_free_txg)
	return (TRUE);

	if (blkid == DMU_SPILL_BLKID)
	return (dnode_spill_freed(dn));

	mutex_enter(&dn->dn_mtx);
	for (i = 0; i < TXG_SIZE; i++) {
	if (dn->dn_free_ranges[i] != NULL &&
	range_tree_contains(dn->dn_free_ranges[i], blkid, 1))
	break;
	}
	mutex_exit(&dn->dn_mtx);
	return (i < TXG_SIZE);
	}

	/* call from syncing context when we actually write/free space for this dnode */
	void
	dnode_diduse_space(dnode_t *dn, int64_t delta)
	{
	uint64_t space;
	dprintf_dnode(dn, "dn=%p dnp=%p used=%llu delta=%lld\n",
	dn, dn->dn_phys,
	(u_longlong_t)dn->dn_phys->dn_used,
	(longlong_t)delta);

	mutex_enter(&dn->dn_mtx);
	space = DN_USED_BYTES(dn->dn_phys);
	if (delta > 0) {
	ASSERT3U(space + delta, >=, space); /* no overflow */
	} else {
	ASSERT3U(space, >=, -delta); /* no underflow */
	}
	space += delta;
	if (spa_version(dn->dn_objset->os_spa) < SPA_VERSION_DNODE_BYTES) {
	ASSERT((dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) == 0);
	ASSERT0(P2PHASE(space, 1<<DEV_BSHIFT));
	dn->dn_phys->dn_used = space >> DEV_BSHIFT;
	} else {
	dn->dn_phys->dn_used = space;
	dn->dn_phys->dn_flags \|= DNODE_FLAG_USED_BYTES;
	}
	mutex_exit(&dn->dn_mtx);
	}

	/*
	* Scans a block at the indicated "level" looking for a hole or data,
	* depending on 'flags'.
	*
	* If level > 0, then we are scanning an indirect block looking at its
	* pointers. If level == 0, then we are looking at a block of dnodes.
	*
	* If we don't find what we are looking for in the block, we return ESRCH.
	* Otherwise, return with *offset pointing to the beginning (if searching
	* forwards) or end (if searching backwards) of the range covered by the
	* block pointer we matched on (or dnode).
	*
	* The basic search algorithm used below by dnode_next_offset() is to
	* use this function to search up the block tree (widen the search) until
	* we find something (i.e., we don't return ESRCH) and then search back
	* down the tree (narrow the search) until we reach our original search
	* level.
	*/
	static int
	dnode_next_offset_level(dnode_t dn, int flags, uint64_t offset,
	int lvl, uint64_t blkfill, uint64_t txg)
	{
	dmu_buf_impl_t *db = NULL;
	void *data = NULL;
	uint64_t epbs = dn->dn_phys->dn_indblkshift - SPA_BLKPTRSHIFT;
	uint64_t epb = 1ULL << epbs;
	uint64_t minfill, maxfill;
	boolean_t hole;
	int i, inc, error, span;

	ASSERT(RW_LOCK_HELD(&dn->dn_struct_rwlock));

	hole = ((flags & DNODE_FIND_HOLE) != 0);
	inc = (flags & DNODE_FIND_BACKWARDS) ? -1 : 1;
	ASSERT(txg == 0 \|\| !hole);

	if (lvl == dn->dn_phys->dn_nlevels) {
	error = 0;
	epb = dn->dn_phys->dn_nblkptr;
	data = dn->dn_phys->dn_blkptr;
	} else {
	uint64_t blkid = dbuf_whichblock(dn, lvl, *offset);
	error = dbuf_hold_impl(dn, lvl, blkid, TRUE, FALSE, FTAG, &db);
	if (error) {
	if (error != ENOENT)
	return (error);
	if (hole)
	return (0);
	/*
	* This can only happen when we are searching up
	* the block tree for data. We don't really need to
	* adjust the offset, as we will just end up looking
	* at the pointer to this block in its parent, and its
	* going to be unallocated, so we will skip over it.
	*/
	return (SET_ERROR(ESRCH));
	}
	error = dbuf_read(db, NULL,
	DB_RF_CANFAIL \| DB_RF_HAVESTRUCT \|
	DB_RF_NO_DECRYPT \| DB_RF_NOPREFETCH);
	if (error) {
	dbuf_rele(db, FTAG);
	return (error);
	}
	data = db->db.db_data;
	rw_enter(&db->db_rwlock, RW_READER);
	}

	if (db != NULL && txg != 0 && (db->db_blkptr == NULL \|\|
	db->db_blkptr->blk_birth <= txg \|\|
	BP_IS_HOLE(db->db_blkptr))) {
	/*
	* This can only happen when we are searching up the tree
	* and these conditions mean that we need to keep climbing.
	*/
	error = SET_ERROR(ESRCH);
	} else if (lvl == 0) {
	dnode_phys_t *dnp = data;

	ASSERT(dn->dn_type == DMU_OT_DNODE);
	ASSERT(!(flags & DNODE_FIND_BACKWARDS));

	for (i = (*offset >> DNODE_SHIFT) & (blkfill - 1);
	i < blkfill; i += dnp[i].dn_extra_slots + 1) {
	if ((dnp[i].dn_type == DMU_OT_NONE) == hole)
	break;
	}

	if (i == blkfill)
	error = SET_ERROR(ESRCH);

	offset = (offset & ~(DNODE_BLOCK_SIZE - 1)) +
	(i << DNODE_SHIFT);
	} else {
	blkptr_t *bp = data;
	uint64_t start = *offset;
	span = (lvl - 1) * epbs + dn->dn_datablkshift;
	minfill = 0;
	maxfill = blkfill << ((lvl - 1) * epbs);

	if (hole)
	maxfill--;
	else
	minfill++;

	if (span >= 8 * sizeof (*offset)) {
	/* This only happens on the highest indirection level */
	ASSERT3U((lvl - 1), ==, dn->dn_phys->dn_nlevels - 1);
	*offset = 0;
	} else {
	offset = offset >> span;
	}

	for (i = BF64_GET(*offset, 0, epbs);
	i >= 0 && i < epb; i += inc) {
	if (BP_GET_FILL(&bp[i]) >= minfill &&
	BP_GET_FILL(&bp[i]) <= maxfill &&
	(hole \|\| bp[i].blk_birth > txg))
	break;
	if (inc > 0 \|\| *offset > 0)
	*offset += inc;
	}

	if (span >= 8 * sizeof (*offset)) {
	*offset = start;
	} else {
	offset = offset << span;
	}

	if (inc < 0) {
	/* traversing backwards; position offset at the end */
	ASSERT3U(*offset, <=, start);
	offset = MIN(offset + (1ULL << span) - 1, start);
	} else if (*offset < start) {
	*offset = start;
	}
	if (i < 0 \|\| i >= epb)
	error = SET_ERROR(ESRCH);
	}

	if (db != NULL) {
	rw_exit(&db->db_rwlock);
	dbuf_rele(db, FTAG);
	}

	return (error);
	}

	/*
	* Find the next hole, data, or sparse region at or after *offset.
	* The value 'blkfill' tells us how many items we expect to find
	* in an L0 data block; this value is 1 for normal objects,
	* DNODES_PER_BLOCK for the meta dnode, and some fraction of
	* DNODES_PER_BLOCK when searching for sparse regions thereof.
	*
	* Examples:
	*
	* dnode_next_offset(dn, flags, offset, 1, 1, 0);
	* Finds the next/previous hole/data in a file.
	* Used in dmu_offset_next().
	*
	* dnode_next_offset(mdn, flags, offset, 0, DNODES_PER_BLOCK, txg);
	* Finds the next free/allocated dnode an objset's meta-dnode.
	* Only finds objects that have new contents since txg (ie.
	* bonus buffer changes and content removal are ignored).
	* Used in dmu_object_next().
	*
	* dnode_next_offset(mdn, DNODE_FIND_HOLE, offset, 2, DNODES_PER_BLOCK >> 2, 0);
	* Finds the next L2 meta-dnode bp that's at most 1/4 full.
	* Used in dmu_object_alloc().
	*/
	int
	dnode_next_offset(dnode_t dn, int flags, uint64_t offset,
	int minlvl, uint64_t blkfill, uint64_t txg)
	{
	uint64_t initial_offset = *offset;
	int lvl, maxlvl;
	int error = 0;

	if (!(flags & DNODE_FIND_HAVELOCK))
	rw_enter(&dn->dn_struct_rwlock, RW_READER);

	if (dn->dn_phys->dn_nlevels == 0) {
	error = SET_ERROR(ESRCH);
	goto out;
	}

	if (dn->dn_datablkshift == 0) {
	if (*offset < dn->dn_datablksz) {
	if (flags & DNODE_FIND_HOLE)
	*offset = dn->dn_datablksz;
	} else {
	error = SET_ERROR(ESRCH);
	}
	goto out;
	}

	maxlvl = dn->dn_phys->dn_nlevels;

	for (lvl = minlvl; lvl <= maxlvl; lvl++) {
	error = dnode_next_offset_level(dn,
	flags, offset, lvl, blkfill, txg);
	if (error != ESRCH)
	break;
	}

	while (error == 0 && --lvl >= minlvl) {
	error = dnode_next_offset_level(dn,
	flags, offset, lvl, blkfill, txg);
	}

	/*
	* There's always a "virtual hole" at the end of the object, even
	* if all BP's which physically exist are non-holes.
	*/
	if ((flags & DNODE_FIND_HOLE) && error == ESRCH && txg == 0 &&
	minlvl == 1 && blkfill == 1 && !(flags & DNODE_FIND_BACKWARDS)) {
	error = 0;
	}

	if (error == 0 && (flags & DNODE_FIND_BACKWARDS ?
	initial_offset < offset : initial_offset > offset))
	error = SET_ERROR(ESRCH);
	out:
	if (!(flags & DNODE_FIND_HAVELOCK))
	rw_exit(&dn->dn_struct_rwlock);

	return (error);
	}

	#if defined(_KERNEL)
	EXPORT_SYMBOL(dnode_hold);
	EXPORT_SYMBOL(dnode_rele);
	EXPORT_SYMBOL(dnode_set_nlevels);
	EXPORT_SYMBOL(dnode_set_blksz);
	EXPORT_SYMBOL(dnode_free_range);
	EXPORT_SYMBOL(dnode_evict_dbufs);
	EXPORT_SYMBOL(dnode_evict_bonus);
	#endif
	diff --git a/sys/contrib/openzfs/module/zfs/dsl_dataset.c b/sys/contrib/openzfs/module/zfs/dsl_dataset.c
	index 6da5faf01edf..9b9bb42287d5 100644
	--- a/sys/contrib/openzfs/module/zfs/dsl_dataset.c
	+++ b/sys/contrib/openzfs/module/zfs/dsl_dataset.c
	@@ -1,5014 +1,5013 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2011, 2020 by Delphix. All rights reserved.
	* Copyright (c) 2014, Joyent, Inc. All rights reserved.
	* Copyright (c) 2014 RackTop Systems.
	* Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
	* Copyright (c) 2016 Actifio, Inc. All rights reserved.
	* Copyright 2016, OmniTI Computer Consulting, Inc. All rights reserved.
	* Copyright 2017 Nexenta Systems, Inc.
	* Copyright (c) 2019, Klara Inc.
	* Copyright (c) 2019, Allan Jude
	* Copyright (c) 2020 The FreeBSD Foundation [1]
	*
	* [1] Portions of this software were developed by Allan Jude
	* under sponsorship from the FreeBSD Foundation.
	*/

	#include <sys/dmu_objset.h>
	#include <sys/dsl_dataset.h>
	#include <sys/dsl_dir.h>
	#include <sys/dsl_prop.h>
	#include <sys/dsl_synctask.h>
	#include <sys/dmu_traverse.h>
	#include <sys/dmu_impl.h>
	#include <sys/dmu_tx.h>
	#include <sys/arc.h>
	#include <sys/zio.h>
	#include <sys/zap.h>
	#include <sys/zfeature.h>
	#include <sys/unique.h>
	#include <sys/zfs_context.h>
	#include <sys/zfs_ioctl.h>
	#include <sys/spa.h>
	#include <sys/spa_impl.h>
	#include <sys/vdev.h>
	#include <sys/zfs_znode.h>
	#include <sys/zfs_onexit.h>
	#include <sys/zvol.h>
	#include <sys/dsl_scan.h>
	#include <sys/dsl_deadlist.h>
	#include <sys/dsl_destroy.h>
	#include <sys/dsl_userhold.h>
	#include <sys/dsl_bookmark.h>
	#include <sys/policy.h>
	#include <sys/dmu_send.h>
	#include <sys/dmu_recv.h>
	#include <sys/zio_compress.h>
	#include <zfs_fletcher.h>
	#include <sys/zio_checksum.h>

	/*
	* The SPA supports block sizes up to 16MB. However, very large blocks
	* can have an impact on i/o latency (e.g. tying up a spinning disk for
	* ~300ms), and also potentially on the memory allocator. Therefore,
	* we do not allow the recordsize to be set larger than zfs_max_recordsize
	* (default 1MB). Larger blocks can be created by changing this tunable,
	* and pools with larger blocks can always be imported and used, regardless
	* of this setting.
	*/
	int zfs_max_recordsize = 1 * 1024 * 1024;
	int zfs_allow_redacted_dataset_mount = 0;

	#define SWITCH64(x, y) \
	{ \
	uint64_t __tmp = (x); \
	(x) = (y); \
	(y) = __tmp; \
	}

	#define DS_REF_MAX (1ULL << 62)

	extern inline dsl_dataset_phys_t dsl_dataset_phys(dsl_dataset_t ds);

	static void dsl_dataset_set_remap_deadlist_object(dsl_dataset_t *ds,
	uint64_t obj, dmu_tx_t *tx);
	static void dsl_dataset_unset_remap_deadlist_object(dsl_dataset_t *ds,
	dmu_tx_t *tx);

	static void unload_zfeature(dsl_dataset_t *ds, spa_feature_t f);

	extern int spa_asize_inflation;

	static zil_header_t zero_zil;

	/*
	* Figure out how much of this delta should be propagated to the dsl_dir
	* layer. If there's a refreservation, that space has already been
	* partially accounted for in our ancestors.
	*/
	static int64_t
	parent_delta(dsl_dataset_t *ds, int64_t delta)
	{
	dsl_dataset_phys_t *ds_phys;
	uint64_t old_bytes, new_bytes;

	if (ds->ds_reserved == 0)
	return (delta);

	ds_phys = dsl_dataset_phys(ds);
	old_bytes = MAX(ds_phys->ds_unique_bytes, ds->ds_reserved);
	new_bytes = MAX(ds_phys->ds_unique_bytes + delta, ds->ds_reserved);

	ASSERT3U(ABS((int64_t)(new_bytes - old_bytes)), <=, ABS(delta));
	return (new_bytes - old_bytes);
	}

	void
	dsl_dataset_block_born(dsl_dataset_t ds, const blkptr_t bp, dmu_tx_t *tx)
	{
	spa_t *spa = dmu_tx_pool(tx)->dp_spa;
	int used = bp_get_dsize_sync(spa, bp);
	int compressed = BP_GET_PSIZE(bp);
	int uncompressed = BP_GET_UCSIZE(bp);
	int64_t delta;
	spa_feature_t f;

	dprintf_bp(bp, "ds=%p", ds);

	ASSERT(dmu_tx_is_syncing(tx));
	/* It could have been compressed away to nothing */
	if (BP_IS_HOLE(bp) \|\| BP_IS_REDACTED(bp))
	return;
	ASSERT(BP_GET_TYPE(bp) != DMU_OT_NONE);
	ASSERT(DMU_OT_IS_VALID(BP_GET_TYPE(bp)));
	if (ds == NULL) {
	dsl_pool_mos_diduse_space(tx->tx_pool,
	used, compressed, uncompressed);
	return;
	}

	ASSERT3U(bp->blk_birth, >, dsl_dataset_phys(ds)->ds_prev_snap_txg);
	dmu_buf_will_dirty(ds->ds_dbuf, tx);
	mutex_enter(&ds->ds_lock);
	delta = parent_delta(ds, used);
	dsl_dataset_phys(ds)->ds_referenced_bytes += used;
	dsl_dataset_phys(ds)->ds_compressed_bytes += compressed;
	dsl_dataset_phys(ds)->ds_uncompressed_bytes += uncompressed;
	dsl_dataset_phys(ds)->ds_unique_bytes += used;

	if (BP_GET_LSIZE(bp) > SPA_OLD_MAXBLOCKSIZE) {
	ds->ds_feature_activation[SPA_FEATURE_LARGE_BLOCKS] =
	(void *)B_TRUE;
	}


	f = zio_checksum_to_feature(BP_GET_CHECKSUM(bp));
	if (f != SPA_FEATURE_NONE) {
	ASSERT3S(spa_feature_table[f].fi_type, ==,
	ZFEATURE_TYPE_BOOLEAN);
	ds->ds_feature_activation[f] = (void *)B_TRUE;
	}

	f = zio_compress_to_feature(BP_GET_COMPRESS(bp));
	if (f != SPA_FEATURE_NONE) {
	ASSERT3S(spa_feature_table[f].fi_type, ==,
	ZFEATURE_TYPE_BOOLEAN);
	ds->ds_feature_activation[f] = (void *)B_TRUE;
	}

	/*
	* Track block for livelist, but ignore embedded blocks because
	* they do not need to be freed.
	*/
	if (dsl_deadlist_is_open(&ds->ds_dir->dd_livelist) &&
	bp->blk_birth > ds->ds_dir->dd_origin_txg &&
	!(BP_IS_EMBEDDED(bp))) {
	ASSERT(dsl_dir_is_clone(ds->ds_dir));
	ASSERT(spa_feature_is_enabled(spa,
	SPA_FEATURE_LIVELIST));
	bplist_append(&ds->ds_dir->dd_pending_allocs, bp);
	}

	mutex_exit(&ds->ds_lock);
	dsl_dir_diduse_space(ds->ds_dir, DD_USED_HEAD, delta,
	compressed, uncompressed, tx);
	dsl_dir_transfer_space(ds->ds_dir, used - delta,
	DD_USED_REFRSRV, DD_USED_HEAD, tx);
	}

	/*
	* Called when the specified segment has been remapped, and is thus no
	* longer referenced in the head dataset. The vdev must be indirect.
	*
	* If the segment is referenced by a snapshot, put it on the remap deadlist.
	* Otherwise, add this segment to the obsolete spacemap.
	*/
	void
	dsl_dataset_block_remapped(dsl_dataset_t *ds, uint64_t vdev, uint64_t offset,
	uint64_t size, uint64_t birth, dmu_tx_t *tx)
	{
	spa_t *spa = ds->ds_dir->dd_pool->dp_spa;

	ASSERT(dmu_tx_is_syncing(tx));
	ASSERT(birth <= tx->tx_txg);
	ASSERT(!ds->ds_is_snapshot);

	if (birth > dsl_dataset_phys(ds)->ds_prev_snap_txg) {
	spa_vdev_indirect_mark_obsolete(spa, vdev, offset, size, tx);
	} else {
	blkptr_t fakebp;
	dva_t *dva = &fakebp.blk_dva[0];

	ASSERT(ds != NULL);

	mutex_enter(&ds->ds_remap_deadlist_lock);
	if (!dsl_dataset_remap_deadlist_exists(ds)) {
	dsl_dataset_create_remap_deadlist(ds, tx);
	}
	mutex_exit(&ds->ds_remap_deadlist_lock);

	BP_ZERO(&fakebp);
	fakebp.blk_birth = birth;
	DVA_SET_VDEV(dva, vdev);
	DVA_SET_OFFSET(dva, offset);
	DVA_SET_ASIZE(dva, size);
	dsl_deadlist_insert(&ds->ds_remap_deadlist, &fakebp, B_FALSE,
	tx);
	}
	}

	int
	dsl_dataset_block_kill(dsl_dataset_t ds, const blkptr_t bp, dmu_tx_t *tx,
	boolean_t async)
	{
	spa_t *spa = dmu_tx_pool(tx)->dp_spa;

	int used = bp_get_dsize_sync(spa, bp);
	int compressed = BP_GET_PSIZE(bp);
	int uncompressed = BP_GET_UCSIZE(bp);

	if (BP_IS_HOLE(bp) \|\| BP_IS_REDACTED(bp))
	return (0);

	ASSERT(dmu_tx_is_syncing(tx));
	ASSERT(bp->blk_birth <= tx->tx_txg);

	if (ds == NULL) {
	dsl_free(tx->tx_pool, tx->tx_txg, bp);
	dsl_pool_mos_diduse_space(tx->tx_pool,
	-used, -compressed, -uncompressed);
	return (used);
	}
	ASSERT3P(tx->tx_pool, ==, ds->ds_dir->dd_pool);

	ASSERT(!ds->ds_is_snapshot);
	dmu_buf_will_dirty(ds->ds_dbuf, tx);

	/*
	* Track block for livelist, but ignore embedded blocks because
	* they do not need to be freed.
	*/
	if (dsl_deadlist_is_open(&ds->ds_dir->dd_livelist) &&
	bp->blk_birth > ds->ds_dir->dd_origin_txg &&
	!(BP_IS_EMBEDDED(bp))) {
	ASSERT(dsl_dir_is_clone(ds->ds_dir));
	ASSERT(spa_feature_is_enabled(spa,
	SPA_FEATURE_LIVELIST));
	bplist_append(&ds->ds_dir->dd_pending_frees, bp);
	}

	if (bp->blk_birth > dsl_dataset_phys(ds)->ds_prev_snap_txg) {
	int64_t delta;

	dprintf_bp(bp, "freeing ds=%llu", ds->ds_object);
	dsl_free(tx->tx_pool, tx->tx_txg, bp);

	mutex_enter(&ds->ds_lock);
	ASSERT(dsl_dataset_phys(ds)->ds_unique_bytes >= used \|\|
	!DS_UNIQUE_IS_ACCURATE(ds));
	delta = parent_delta(ds, -used);
	dsl_dataset_phys(ds)->ds_unique_bytes -= used;
	mutex_exit(&ds->ds_lock);
	dsl_dir_diduse_space(ds->ds_dir, DD_USED_HEAD,
	delta, -compressed, -uncompressed, tx);
	dsl_dir_transfer_space(ds->ds_dir, -used - delta,
	DD_USED_REFRSRV, DD_USED_HEAD, tx);
	} else {
	dprintf_bp(bp, "putting on dead list: %s", "");
	if (async) {
	/*
	* We are here as part of zio's write done callback,
	* which means we're a zio interrupt thread. We can't
	* call dsl_deadlist_insert() now because it may block
	* waiting for I/O. Instead, put bp on the deferred
	* queue and let dsl_pool_sync() finish the job.
	*/
	bplist_append(&ds->ds_pending_deadlist, bp);
	} else {
	dsl_deadlist_insert(&ds->ds_deadlist, bp, B_FALSE, tx);
	}
	ASSERT3U(ds->ds_prev->ds_object, ==,
	dsl_dataset_phys(ds)->ds_prev_snap_obj);
	ASSERT(dsl_dataset_phys(ds->ds_prev)->ds_num_children > 0);
	/* if (bp->blk_birth > prev prev snap txg) prev unique += bs */
	if (dsl_dataset_phys(ds->ds_prev)->ds_next_snap_obj ==
	ds->ds_object && bp->blk_birth >
	dsl_dataset_phys(ds->ds_prev)->ds_prev_snap_txg) {
	dmu_buf_will_dirty(ds->ds_prev->ds_dbuf, tx);
	mutex_enter(&ds->ds_prev->ds_lock);
	dsl_dataset_phys(ds->ds_prev)->ds_unique_bytes += used;
	mutex_exit(&ds->ds_prev->ds_lock);
	}
	if (bp->blk_birth > ds->ds_dir->dd_origin_txg) {
	dsl_dir_transfer_space(ds->ds_dir, used,
	DD_USED_HEAD, DD_USED_SNAP, tx);
	}
	}

	dsl_bookmark_block_killed(ds, bp, tx);

	mutex_enter(&ds->ds_lock);
	ASSERT3U(dsl_dataset_phys(ds)->ds_referenced_bytes, >=, used);
	dsl_dataset_phys(ds)->ds_referenced_bytes -= used;
	ASSERT3U(dsl_dataset_phys(ds)->ds_compressed_bytes, >=, compressed);
	dsl_dataset_phys(ds)->ds_compressed_bytes -= compressed;
	ASSERT3U(dsl_dataset_phys(ds)->ds_uncompressed_bytes, >=, uncompressed);
	dsl_dataset_phys(ds)->ds_uncompressed_bytes -= uncompressed;
	mutex_exit(&ds->ds_lock);

	return (used);
	}

	struct feature_type_uint64_array_arg {
	uint64_t length;
	uint64_t *array;
	};

	static void
	unload_zfeature(dsl_dataset_t *ds, spa_feature_t f)
	{
	switch (spa_feature_table[f].fi_type) {
	case ZFEATURE_TYPE_BOOLEAN:
	break;
	case ZFEATURE_TYPE_UINT64_ARRAY:
	{
	struct feature_type_uint64_array_arg *ftuaa = ds->ds_feature[f];
	kmem_free(ftuaa->array, ftuaa->length * sizeof (uint64_t));
	kmem_free(ftuaa, sizeof (*ftuaa));
	break;
	}
	default:
	panic("Invalid zfeature type %d", spa_feature_table[f].fi_type);
	}
	}

	static int
	load_zfeature(objset_t mos, dsl_dataset_t ds, spa_feature_t f)
	{
	int err = 0;
	switch (spa_feature_table[f].fi_type) {
	case ZFEATURE_TYPE_BOOLEAN:
	err = zap_contains(mos, ds->ds_object,
	spa_feature_table[f].fi_guid);
	if (err == 0) {
	ds->ds_feature[f] = (void *)B_TRUE;
	} else {
	ASSERT3U(err, ==, ENOENT);
	err = 0;
	}
	break;
	case ZFEATURE_TYPE_UINT64_ARRAY:
	{
	uint64_t int_size, num_int;
	uint64_t *data;
	err = zap_length(mos, ds->ds_object,
	spa_feature_table[f].fi_guid, &int_size, &num_int);
	if (err != 0) {
	ASSERT3U(err, ==, ENOENT);
	err = 0;
	break;
	}
	ASSERT3U(int_size, ==, sizeof (uint64_t));
	data = kmem_alloc(int_size * num_int, KM_SLEEP);
	VERIFY0(zap_lookup(mos, ds->ds_object,
	spa_feature_table[f].fi_guid, int_size, num_int, data));
	struct feature_type_uint64_array_arg *ftuaa =
	kmem_alloc(sizeof (*ftuaa), KM_SLEEP);
	ftuaa->length = num_int;
	ftuaa->array = data;
	ds->ds_feature[f] = ftuaa;
	break;
	}
	default:
	panic("Invalid zfeature type %d", spa_feature_table[f].fi_type);
	}
	return (err);
	}

	/*
	* We have to release the fsid synchronously or we risk that a subsequent
	* mount of the same dataset will fail to unique_insert the fsid. This
	* failure would manifest itself as the fsid of this dataset changing
	* between mounts which makes NFS clients quite unhappy.
	*/
	static void
	dsl_dataset_evict_sync(void *dbu)
	{
	dsl_dataset_t *ds = dbu;

	ASSERT(ds->ds_owner == NULL);

	unique_remove(ds->ds_fsid_guid);
	}

	static void
	dsl_dataset_evict_async(void *dbu)
	{
	dsl_dataset_t *ds = dbu;

	ASSERT(ds->ds_owner == NULL);

	ds->ds_dbuf = NULL;

	if (ds->ds_objset != NULL)
	dmu_objset_evict(ds->ds_objset);

	if (ds->ds_prev) {
	dsl_dataset_rele(ds->ds_prev, ds);
	ds->ds_prev = NULL;
	}

	dsl_bookmark_fini_ds(ds);

	bplist_destroy(&ds->ds_pending_deadlist);
	if (dsl_deadlist_is_open(&ds->ds_deadlist))
	dsl_deadlist_close(&ds->ds_deadlist);
	if (dsl_deadlist_is_open(&ds->ds_remap_deadlist))
	dsl_deadlist_close(&ds->ds_remap_deadlist);
	if (ds->ds_dir)
	dsl_dir_async_rele(ds->ds_dir, ds);

	ASSERT(!list_link_active(&ds->ds_synced_link));

	for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
	if (dsl_dataset_feature_is_active(ds, f))
	unload_zfeature(ds, f);
	}

	list_destroy(&ds->ds_prop_cbs);
	mutex_destroy(&ds->ds_lock);
	mutex_destroy(&ds->ds_opening_lock);
	mutex_destroy(&ds->ds_sendstream_lock);
	mutex_destroy(&ds->ds_remap_deadlist_lock);
	zfs_refcount_destroy(&ds->ds_longholds);
	rrw_destroy(&ds->ds_bp_rwlock);

	kmem_free(ds, sizeof (dsl_dataset_t));
	}

	int
	dsl_dataset_get_snapname(dsl_dataset_t *ds)
	{
	dsl_dataset_phys_t *headphys;
	int err;
	dmu_buf_t *headdbuf;
	dsl_pool_t *dp = ds->ds_dir->dd_pool;
	objset_t *mos = dp->dp_meta_objset;

	if (ds->ds_snapname[0])
	return (0);
	if (dsl_dataset_phys(ds)->ds_next_snap_obj == 0)
	return (0);

	err = dmu_bonus_hold(mos, dsl_dir_phys(ds->ds_dir)->dd_head_dataset_obj,
	FTAG, &headdbuf);
	if (err != 0)
	return (err);
	headphys = headdbuf->db_data;
	err = zap_value_search(dp->dp_meta_objset,
	headphys->ds_snapnames_zapobj, ds->ds_object, 0, ds->ds_snapname);
	if (err != 0 && zfs_recover == B_TRUE) {
	err = 0;
	(void) snprintf(ds->ds_snapname, sizeof (ds->ds_snapname),
	"SNAPOBJ=%llu-ERR=%d",
	(unsigned long long)ds->ds_object, err);
	}
	dmu_buf_rele(headdbuf, FTAG);
	return (err);
	}

	int
	dsl_dataset_snap_lookup(dsl_dataset_t ds, const char name, uint64_t *value)
	{
	objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset;
	uint64_t snapobj = dsl_dataset_phys(ds)->ds_snapnames_zapobj;
	matchtype_t mt = 0;
	int err;

	if (dsl_dataset_phys(ds)->ds_flags & DS_FLAG_CI_DATASET)
	mt = MT_NORMALIZE;

	err = zap_lookup_norm(mos, snapobj, name, 8, 1,
	value, mt, NULL, 0, NULL);
	if (err == ENOTSUP && (mt & MT_NORMALIZE))
	err = zap_lookup(mos, snapobj, name, 8, 1, value);
	return (err);
	}

	int
	dsl_dataset_snap_remove(dsl_dataset_t ds, const char name, dmu_tx_t *tx,
	boolean_t adj_cnt)
	{
	objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset;
	uint64_t snapobj = dsl_dataset_phys(ds)->ds_snapnames_zapobj;
	matchtype_t mt = 0;
	int err;

	dsl_dir_snap_cmtime_update(ds->ds_dir);

	if (dsl_dataset_phys(ds)->ds_flags & DS_FLAG_CI_DATASET)
	mt = MT_NORMALIZE;

	err = zap_remove_norm(mos, snapobj, name, mt, tx);
	if (err == ENOTSUP && (mt & MT_NORMALIZE))
	err = zap_remove(mos, snapobj, name, tx);

	if (err == 0 && adj_cnt)
	dsl_fs_ss_count_adjust(ds->ds_dir, -1,
	DD_FIELD_SNAPSHOT_COUNT, tx);

	return (err);
	}

	boolean_t
	dsl_dataset_try_add_ref(dsl_pool_t dp, dsl_dataset_t ds, void *tag)
	{
	dmu_buf_t *dbuf = ds->ds_dbuf;
	boolean_t result = B_FALSE;

	if (dbuf != NULL && dmu_buf_try_add_ref(dbuf, dp->dp_meta_objset,
	ds->ds_object, DMU_BONUS_BLKID, tag)) {

	if (ds == dmu_buf_get_user(dbuf))
	result = B_TRUE;
	else
	dmu_buf_rele(dbuf, tag);
	}

	return (result);
	}

	int
	dsl_dataset_hold_obj(dsl_pool_t dp, uint64_t dsobj, void tag,
	dsl_dataset_t **dsp)
	{
	objset_t *mos = dp->dp_meta_objset;
	dmu_buf_t *dbuf;
	dsl_dataset_t *ds;
	int err;
	dmu_object_info_t doi;

	ASSERT(dsl_pool_config_held(dp));

	err = dmu_bonus_hold(mos, dsobj, tag, &dbuf);
	if (err != 0)
	return (err);

	/* Make sure dsobj has the correct object type. */
	dmu_object_info_from_db(dbuf, &doi);
	if (doi.doi_bonus_type != DMU_OT_DSL_DATASET) {
	dmu_buf_rele(dbuf, tag);
	return (SET_ERROR(EINVAL));
	}

	ds = dmu_buf_get_user(dbuf);
	if (ds == NULL) {
	dsl_dataset_t *winner = NULL;

	ds = kmem_zalloc(sizeof (dsl_dataset_t), KM_SLEEP);
	ds->ds_dbuf = dbuf;
	ds->ds_object = dsobj;
	ds->ds_is_snapshot = dsl_dataset_phys(ds)->ds_num_children != 0;
	list_link_init(&ds->ds_synced_link);

	err = dsl_dir_hold_obj(dp, dsl_dataset_phys(ds)->ds_dir_obj,
	NULL, ds, &ds->ds_dir);
	if (err != 0) {
	kmem_free(ds, sizeof (dsl_dataset_t));
	dmu_buf_rele(dbuf, tag);
	return (err);
	}

	mutex_init(&ds->ds_lock, NULL, MUTEX_DEFAULT, NULL);
	mutex_init(&ds->ds_opening_lock, NULL, MUTEX_DEFAULT, NULL);
	mutex_init(&ds->ds_sendstream_lock, NULL, MUTEX_DEFAULT, NULL);
	mutex_init(&ds->ds_remap_deadlist_lock,
	NULL, MUTEX_DEFAULT, NULL);
	rrw_init(&ds->ds_bp_rwlock, B_FALSE);
	zfs_refcount_create(&ds->ds_longholds);

	bplist_create(&ds->ds_pending_deadlist);

	list_create(&ds->ds_sendstreams, sizeof (dmu_sendstatus_t),
	offsetof(dmu_sendstatus_t, dss_link));

	list_create(&ds->ds_prop_cbs, sizeof (dsl_prop_cb_record_t),
	offsetof(dsl_prop_cb_record_t, cbr_ds_node));

	if (doi.doi_type == DMU_OTN_ZAP_METADATA) {
	spa_feature_t f;

	for (f = 0; f < SPA_FEATURES; f++) {
	if (!(spa_feature_table[f].fi_flags &
	ZFEATURE_FLAG_PER_DATASET))
	continue;
	err = load_zfeature(mos, ds, f);
	}
	}

	if (!ds->ds_is_snapshot) {
	ds->ds_snapname[0] = '\0';
	if (dsl_dataset_phys(ds)->ds_prev_snap_obj != 0) {
	err = dsl_dataset_hold_obj(dp,
	dsl_dataset_phys(ds)->ds_prev_snap_obj,
	ds, &ds->ds_prev);
	}
	err = dsl_bookmark_init_ds(ds);
	} else {
	if (zfs_flags & ZFS_DEBUG_SNAPNAMES)
	err = dsl_dataset_get_snapname(ds);
	if (err == 0 &&
	dsl_dataset_phys(ds)->ds_userrefs_obj != 0) {
	err = zap_count(
	ds->ds_dir->dd_pool->dp_meta_objset,
	dsl_dataset_phys(ds)->ds_userrefs_obj,
	&ds->ds_userrefs);
	}
	}

	if (err == 0 && !ds->ds_is_snapshot) {
	err = dsl_prop_get_int_ds(ds,
	zfs_prop_to_name(ZFS_PROP_REFRESERVATION),
	&ds->ds_reserved);
	if (err == 0) {
	err = dsl_prop_get_int_ds(ds,
	zfs_prop_to_name(ZFS_PROP_REFQUOTA),
	&ds->ds_quota);
	}
	} else {
	ds->ds_reserved = ds->ds_quota = 0;
	}

	if (err == 0 && ds->ds_dir->dd_crypto_obj != 0 &&
	ds->ds_is_snapshot &&
	zap_contains(mos, dsobj, DS_FIELD_IVSET_GUID) != 0) {
	dp->dp_spa->spa_errata =
	ZPOOL_ERRATA_ZOL_8308_ENCRYPTION;
	}

	dsl_deadlist_open(&ds->ds_deadlist,
	mos, dsl_dataset_phys(ds)->ds_deadlist_obj);
	uint64_t remap_deadlist_obj =
	dsl_dataset_get_remap_deadlist_object(ds);
	if (remap_deadlist_obj != 0) {
	dsl_deadlist_open(&ds->ds_remap_deadlist, mos,
	remap_deadlist_obj);
	}

	dmu_buf_init_user(&ds->ds_dbu, dsl_dataset_evict_sync,
	dsl_dataset_evict_async, &ds->ds_dbuf);
	if (err == 0)
	winner = dmu_buf_set_user_ie(dbuf, &ds->ds_dbu);

	if (err != 0 \|\| winner != NULL) {
	bplist_destroy(&ds->ds_pending_deadlist);
	dsl_deadlist_close(&ds->ds_deadlist);
	if (dsl_deadlist_is_open(&ds->ds_remap_deadlist))
	dsl_deadlist_close(&ds->ds_remap_deadlist);
	dsl_bookmark_fini_ds(ds);
	if (ds->ds_prev)
	dsl_dataset_rele(ds->ds_prev, ds);
	dsl_dir_rele(ds->ds_dir, ds);
	for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
	if (dsl_dataset_feature_is_active(ds, f))
	unload_zfeature(ds, f);
	}

	list_destroy(&ds->ds_prop_cbs);
	list_destroy(&ds->ds_sendstreams);
	mutex_destroy(&ds->ds_lock);
	mutex_destroy(&ds->ds_opening_lock);
	mutex_destroy(&ds->ds_sendstream_lock);
	mutex_destroy(&ds->ds_remap_deadlist_lock);
	zfs_refcount_destroy(&ds->ds_longholds);
	rrw_destroy(&ds->ds_bp_rwlock);
	kmem_free(ds, sizeof (dsl_dataset_t));
	if (err != 0) {
	dmu_buf_rele(dbuf, tag);
	return (err);
	}
	ds = winner;
	} else {
	ds->ds_fsid_guid =
	unique_insert(dsl_dataset_phys(ds)->ds_fsid_guid);
	if (ds->ds_fsid_guid !=
	dsl_dataset_phys(ds)->ds_fsid_guid) {
	zfs_dbgmsg("ds_fsid_guid changed from "
	"%llx to %llx for pool %s dataset id %llu",
	(long long)
	dsl_dataset_phys(ds)->ds_fsid_guid,
	(long long)ds->ds_fsid_guid,
	spa_name(dp->dp_spa),
	dsobj);
	}
	}
	}

	ASSERT3P(ds->ds_dbuf, ==, dbuf);
	ASSERT3P(dsl_dataset_phys(ds), ==, dbuf->db_data);
	ASSERT(dsl_dataset_phys(ds)->ds_prev_snap_obj != 0 \|\|
	spa_version(dp->dp_spa) < SPA_VERSION_ORIGIN \|\|
	dp->dp_origin_snap == NULL \|\| ds == dp->dp_origin_snap);
	*dsp = ds;

	return (0);
	}

	int
	dsl_dataset_create_key_mapping(dsl_dataset_t *ds)
	{
	dsl_dir_t *dd = ds->ds_dir;

	if (dd->dd_crypto_obj == 0)
	return (0);

	return (spa_keystore_create_mapping(dd->dd_pool->dp_spa,
	ds, ds, &ds->ds_key_mapping));
	}

	int
	dsl_dataset_hold_obj_flags(dsl_pool_t *dp, uint64_t dsobj,
	ds_hold_flags_t flags, void tag, dsl_dataset_t *dsp)
	{
	int err;

	err = dsl_dataset_hold_obj(dp, dsobj, tag, dsp);
	if (err != 0)
	return (err);

	ASSERT3P(*dsp, !=, NULL);

	if (flags & DS_HOLD_FLAG_DECRYPT) {
	err = dsl_dataset_create_key_mapping(*dsp);
	if (err != 0)
	dsl_dataset_rele(*dsp, tag);
	}

	return (err);
	}

	int
	dsl_dataset_hold_flags(dsl_pool_t dp, const char name, ds_hold_flags_t flags,
	void tag, dsl_dataset_t *dsp)
	{
	dsl_dir_t *dd;
	const char *snapname;
	uint64_t obj;
	int err = 0;
	dsl_dataset_t *ds;

	err = dsl_dir_hold(dp, name, FTAG, &dd, &snapname);
	if (err != 0)
	return (err);

	ASSERT(dsl_pool_config_held(dp));
	obj = dsl_dir_phys(dd)->dd_head_dataset_obj;
	if (obj != 0)
	err = dsl_dataset_hold_obj_flags(dp, obj, flags, tag, &ds);
	else
	err = SET_ERROR(ENOENT);

	/* we may be looking for a snapshot */
	if (err == 0 && snapname != NULL) {
	dsl_dataset_t *snap_ds;

	if (*snapname++ != '@') {
	dsl_dataset_rele_flags(ds, flags, tag);
	dsl_dir_rele(dd, FTAG);
	return (SET_ERROR(ENOENT));
	}

	dprintf("looking for snapshot '%s'\n", snapname);
	err = dsl_dataset_snap_lookup(ds, snapname, &obj);
	if (err == 0) {
	err = dsl_dataset_hold_obj_flags(dp, obj, flags, tag,
	&snap_ds);
	}
	dsl_dataset_rele_flags(ds, flags, tag);

	if (err == 0) {
	mutex_enter(&snap_ds->ds_lock);
	if (snap_ds->ds_snapname[0] == 0)
	(void) strlcpy(snap_ds->ds_snapname, snapname,
	sizeof (snap_ds->ds_snapname));
	mutex_exit(&snap_ds->ds_lock);
	ds = snap_ds;
	}
	}
	if (err == 0)
	*dsp = ds;
	dsl_dir_rele(dd, FTAG);
	return (err);
	}

	int
	dsl_dataset_hold(dsl_pool_t dp, const char name, void *tag,
	dsl_dataset_t **dsp)
	{
	return (dsl_dataset_hold_flags(dp, name, 0, tag, dsp));
	}

	static int
	dsl_dataset_own_obj_impl(dsl_pool_t *dp, uint64_t dsobj, ds_hold_flags_t flags,
	void tag, boolean_t override, dsl_dataset_t *dsp)
	{
	int err = dsl_dataset_hold_obj_flags(dp, dsobj, flags, tag, dsp);
	if (err != 0)
	return (err);
	if (!dsl_dataset_tryown(*dsp, tag, override)) {
	dsl_dataset_rele_flags(*dsp, flags, tag);
	*dsp = NULL;
	return (SET_ERROR(EBUSY));
	}
	return (0);
	}


	int
	dsl_dataset_own_obj(dsl_pool_t *dp, uint64_t dsobj, ds_hold_flags_t flags,
	void tag, dsl_dataset_t *dsp)
	{
	return (dsl_dataset_own_obj_impl(dp, dsobj, flags, tag, B_FALSE, dsp));
	}

	int
	dsl_dataset_own_obj_force(dsl_pool_t *dp, uint64_t dsobj,
	ds_hold_flags_t flags, void tag, dsl_dataset_t *dsp)
	{
	return (dsl_dataset_own_obj_impl(dp, dsobj, flags, tag, B_TRUE, dsp));
	}

	static int
	dsl_dataset_own_impl(dsl_pool_t dp, const char name, ds_hold_flags_t flags,
	void tag, boolean_t override, dsl_dataset_t *dsp)
	{
	int err = dsl_dataset_hold_flags(dp, name, flags, tag, dsp);
	if (err != 0)
	return (err);
	if (!dsl_dataset_tryown(*dsp, tag, override)) {
	dsl_dataset_rele_flags(*dsp, flags, tag);
	return (SET_ERROR(EBUSY));
	}
	return (0);
	}

	int
	dsl_dataset_own_force(dsl_pool_t dp, const char name, ds_hold_flags_t flags,
	void tag, dsl_dataset_t *dsp)
	{
	return (dsl_dataset_own_impl(dp, name, flags, tag, B_TRUE, dsp));
	}

	int
	dsl_dataset_own(dsl_pool_t dp, const char name, ds_hold_flags_t flags,
	void tag, dsl_dataset_t *dsp)
	{
	return (dsl_dataset_own_impl(dp, name, flags, tag, B_FALSE, dsp));
	}

	/*
	* See the comment above dsl_pool_hold() for details. In summary, a long
	* hold is used to prevent destruction of a dataset while the pool hold
	* is dropped, allowing other concurrent operations (e.g. spa_sync()).
	*
	* The dataset and pool must be held when this function is called. After it
	* is called, the pool hold may be released while the dataset is still held
	* and accessed.
	*/
	void
	dsl_dataset_long_hold(dsl_dataset_t ds, void tag)
	{
	ASSERT(dsl_pool_config_held(ds->ds_dir->dd_pool));
	(void) zfs_refcount_add(&ds->ds_longholds, tag);
	}

	void
	dsl_dataset_long_rele(dsl_dataset_t ds, void tag)
	{
	(void) zfs_refcount_remove(&ds->ds_longholds, tag);
	}

	/* Return B_TRUE if there are any long holds on this dataset. */
	boolean_t
	dsl_dataset_long_held(dsl_dataset_t *ds)
	{
	return (!zfs_refcount_is_zero(&ds->ds_longholds));
	}

	void
	dsl_dataset_name(dsl_dataset_t ds, char name)
	{
	if (ds == NULL) {
	(void) strlcpy(name, "mos", ZFS_MAX_DATASET_NAME_LEN);
	} else {
	dsl_dir_name(ds->ds_dir, name);
	VERIFY0(dsl_dataset_get_snapname(ds));
	if (ds->ds_snapname[0]) {
	VERIFY3U(strlcat(name, "@", ZFS_MAX_DATASET_NAME_LEN),
	<, ZFS_MAX_DATASET_NAME_LEN);
	/*
	* We use a "recursive" mutex so that we
	* can call dprintf_ds() with ds_lock held.
	*/
	if (!MUTEX_HELD(&ds->ds_lock)) {
	mutex_enter(&ds->ds_lock);
	VERIFY3U(strlcat(name, ds->ds_snapname,
	ZFS_MAX_DATASET_NAME_LEN), <,
	ZFS_MAX_DATASET_NAME_LEN);
	mutex_exit(&ds->ds_lock);
	} else {
	VERIFY3U(strlcat(name, ds->ds_snapname,
	ZFS_MAX_DATASET_NAME_LEN), <,
	ZFS_MAX_DATASET_NAME_LEN);
	}
	}
	}
	}

	int
	dsl_dataset_namelen(dsl_dataset_t *ds)
	{
	VERIFY0(dsl_dataset_get_snapname(ds));
	mutex_enter(&ds->ds_lock);
	int len = strlen(ds->ds_snapname);
	mutex_exit(&ds->ds_lock);
	/* add '@' if ds is a snap */
	if (len > 0)
	len++;
	len += dsl_dir_namelen(ds->ds_dir);
	return (len);
	}

	void
	dsl_dataset_rele(dsl_dataset_t ds, void tag)
	{
	dmu_buf_rele(ds->ds_dbuf, tag);
	}

	void
	dsl_dataset_remove_key_mapping(dsl_dataset_t *ds)
	{
	dsl_dir_t *dd = ds->ds_dir;

	if (dd == NULL \|\| dd->dd_crypto_obj == 0)
	return;

	(void) spa_keystore_remove_mapping(dd->dd_pool->dp_spa,
	ds->ds_object, ds);
	}

	void
	dsl_dataset_rele_flags(dsl_dataset_t ds, ds_hold_flags_t flags, void tag)
	{
	if (flags & DS_HOLD_FLAG_DECRYPT)
	dsl_dataset_remove_key_mapping(ds);

	dsl_dataset_rele(ds, tag);
	}

	void
	dsl_dataset_disown(dsl_dataset_t ds, ds_hold_flags_t flags, void tag)
	{
	ASSERT3P(ds->ds_owner, ==, tag);
	ASSERT(ds->ds_dbuf != NULL);

	mutex_enter(&ds->ds_lock);
	ds->ds_owner = NULL;
	mutex_exit(&ds->ds_lock);
	dsl_dataset_long_rele(ds, tag);
	dsl_dataset_rele_flags(ds, flags, tag);
	}

	boolean_t
	dsl_dataset_tryown(dsl_dataset_t ds, void tag, boolean_t override)
	{
	boolean_t gotit = FALSE;

	ASSERT(dsl_pool_config_held(ds->ds_dir->dd_pool));
	mutex_enter(&ds->ds_lock);
	if (ds->ds_owner == NULL && (override \|\| !(DS_IS_INCONSISTENT(ds) \|\|
	(dsl_dataset_feature_is_active(ds,
	SPA_FEATURE_REDACTED_DATASETS) &&
	!zfs_allow_redacted_dataset_mount)))) {
	ds->ds_owner = tag;
	dsl_dataset_long_hold(ds, tag);
	gotit = TRUE;
	}
	mutex_exit(&ds->ds_lock);
	return (gotit);
	}

	boolean_t
	dsl_dataset_has_owner(dsl_dataset_t *ds)
	{
	boolean_t rv;
	mutex_enter(&ds->ds_lock);
	rv = (ds->ds_owner != NULL);
	mutex_exit(&ds->ds_lock);
	return (rv);
	}

	static boolean_t
	zfeature_active(spa_feature_t f, void *arg)
	{
	switch (spa_feature_table[f].fi_type) {
	case ZFEATURE_TYPE_BOOLEAN: {
	boolean_t val = (boolean_t)(uintptr_t)arg;
	ASSERT(val == B_FALSE \|\| val == B_TRUE);
	return (val);
	}
	case ZFEATURE_TYPE_UINT64_ARRAY:
	/*
	* In this case, arg is a uint64_t array. The feature is active
	* if the array is non-null.
	*/
	return (arg != NULL);
	default:
	panic("Invalid zfeature type %d", spa_feature_table[f].fi_type);
	return (B_FALSE);
	}
	}

	boolean_t
	dsl_dataset_feature_is_active(dsl_dataset_t *ds, spa_feature_t f)
	{
	return (zfeature_active(f, ds->ds_feature[f]));
	}

	/*
	* The buffers passed out by this function are references to internal buffers;
	* they should not be freed by callers of this function, and they should not be
	* used after the dataset has been released.
	*/
	boolean_t
	dsl_dataset_get_uint64_array_feature(dsl_dataset_t *ds, spa_feature_t f,
	uint64_t outlength, uint64_t *outp)
	{
	VERIFY(spa_feature_table[f].fi_type & ZFEATURE_TYPE_UINT64_ARRAY);
	if (!dsl_dataset_feature_is_active(ds, f)) {
	return (B_FALSE);
	}
	struct feature_type_uint64_array_arg *ftuaa = ds->ds_feature[f];
	*outp = ftuaa->array;
	*outlength = ftuaa->length;
	return (B_TRUE);
	}

	void
	dsl_dataset_activate_feature(uint64_t dsobj, spa_feature_t f, void *arg,
	dmu_tx_t *tx)
	{
	spa_t *spa = dmu_tx_pool(tx)->dp_spa;
	objset_t *mos = dmu_tx_pool(tx)->dp_meta_objset;
	uint64_t zero = 0;

	VERIFY(spa_feature_table[f].fi_flags & ZFEATURE_FLAG_PER_DATASET);

	spa_feature_incr(spa, f, tx);
	dmu_object_zapify(mos, dsobj, DMU_OT_DSL_DATASET, tx);

	switch (spa_feature_table[f].fi_type) {
	case ZFEATURE_TYPE_BOOLEAN:
	ASSERT3S((boolean_t)(uintptr_t)arg, ==, B_TRUE);
	VERIFY0(zap_add(mos, dsobj, spa_feature_table[f].fi_guid,
	sizeof (zero), 1, &zero, tx));
	break;
	case ZFEATURE_TYPE_UINT64_ARRAY:
	{
	struct feature_type_uint64_array_arg *ftuaa = arg;
	VERIFY0(zap_add(mos, dsobj, spa_feature_table[f].fi_guid,
	sizeof (uint64_t), ftuaa->length, ftuaa->array, tx));
	break;
	}
	default:
	panic("Invalid zfeature type %d", spa_feature_table[f].fi_type);
	}
	}

	static void
	dsl_dataset_deactivate_feature_impl(dsl_dataset_t *ds, spa_feature_t f,
	dmu_tx_t *tx)
	{
	spa_t *spa = dmu_tx_pool(tx)->dp_spa;
	objset_t *mos = dmu_tx_pool(tx)->dp_meta_objset;
	uint64_t dsobj = ds->ds_object;

	VERIFY(spa_feature_table[f].fi_flags & ZFEATURE_FLAG_PER_DATASET);

	VERIFY0(zap_remove(mos, dsobj, spa_feature_table[f].fi_guid, tx));
	spa_feature_decr(spa, f, tx);
	ds->ds_feature[f] = NULL;
	}

	void
	dsl_dataset_deactivate_feature(dsl_dataset_t ds, spa_feature_t f, dmu_tx_t tx)
	{
	unload_zfeature(ds, f);
	dsl_dataset_deactivate_feature_impl(ds, f, tx);
	}

	uint64_t
	dsl_dataset_create_sync_dd(dsl_dir_t dd, dsl_dataset_t origin,
	dsl_crypto_params_t dcp, uint64_t flags, dmu_tx_t tx)
	{
	dsl_pool_t *dp = dd->dd_pool;
	dmu_buf_t *dbuf;
	dsl_dataset_phys_t *dsphys;
	uint64_t dsobj;
	objset_t *mos = dp->dp_meta_objset;

	if (origin == NULL)
	origin = dp->dp_origin_snap;

	ASSERT(origin == NULL \|\| origin->ds_dir->dd_pool == dp);
	ASSERT(origin == NULL \|\| dsl_dataset_phys(origin)->ds_num_children > 0);
	ASSERT(dmu_tx_is_syncing(tx));
	ASSERT(dsl_dir_phys(dd)->dd_head_dataset_obj == 0);

	dsobj = dmu_object_alloc(mos, DMU_OT_DSL_DATASET, 0,
	DMU_OT_DSL_DATASET, sizeof (dsl_dataset_phys_t), tx);
	VERIFY0(dmu_bonus_hold(mos, dsobj, FTAG, &dbuf));
	dmu_buf_will_dirty(dbuf, tx);
	dsphys = dbuf->db_data;
	bzero(dsphys, sizeof (dsl_dataset_phys_t));
	dsphys->ds_dir_obj = dd->dd_object;
	dsphys->ds_flags = flags;
	dsphys->ds_fsid_guid = unique_create();
	(void) random_get_pseudo_bytes((void*)&dsphys->ds_guid,
	sizeof (dsphys->ds_guid));
	dsphys->ds_snapnames_zapobj =
	zap_create_norm(mos, U8_TEXTPREP_TOUPPER, DMU_OT_DSL_DS_SNAP_MAP,
	DMU_OT_NONE, 0, tx);
	dsphys->ds_creation_time = gethrestime_sec();
	dsphys->ds_creation_txg = tx->tx_txg == TXG_INITIAL ? 1 : tx->tx_txg;

	if (origin == NULL) {
	dsphys->ds_deadlist_obj = dsl_deadlist_alloc(mos, tx);
	} else {
	dsl_dataset_t ohds; / head of the origin snapshot */

	dsphys->ds_prev_snap_obj = origin->ds_object;
	dsphys->ds_prev_snap_txg =
	dsl_dataset_phys(origin)->ds_creation_txg;
	dsphys->ds_referenced_bytes =
	dsl_dataset_phys(origin)->ds_referenced_bytes;
	dsphys->ds_compressed_bytes =
	dsl_dataset_phys(origin)->ds_compressed_bytes;
	dsphys->ds_uncompressed_bytes =
	dsl_dataset_phys(origin)->ds_uncompressed_bytes;
	rrw_enter(&origin->ds_bp_rwlock, RW_READER, FTAG);
	dsphys->ds_bp = dsl_dataset_phys(origin)->ds_bp;
	rrw_exit(&origin->ds_bp_rwlock, FTAG);

	/*
	* Inherit flags that describe the dataset's contents
	* (INCONSISTENT) or properties (Case Insensitive).
	*/
	dsphys->ds_flags \|= dsl_dataset_phys(origin)->ds_flags &
	(DS_FLAG_INCONSISTENT \| DS_FLAG_CI_DATASET);

	for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
	if (zfeature_active(f, origin->ds_feature[f])) {
	dsl_dataset_activate_feature(dsobj, f,
	origin->ds_feature[f], tx);
	}
	}

	dmu_buf_will_dirty(origin->ds_dbuf, tx);
	dsl_dataset_phys(origin)->ds_num_children++;

	VERIFY0(dsl_dataset_hold_obj(dp,
	dsl_dir_phys(origin->ds_dir)->dd_head_dataset_obj,
	FTAG, &ohds));
	dsphys->ds_deadlist_obj = dsl_deadlist_clone(&ohds->ds_deadlist,
	dsphys->ds_prev_snap_txg, dsphys->ds_prev_snap_obj, tx);
	dsl_dataset_rele(ohds, FTAG);

	if (spa_version(dp->dp_spa) >= SPA_VERSION_NEXT_CLONES) {
	if (dsl_dataset_phys(origin)->ds_next_clones_obj == 0) {
	dsl_dataset_phys(origin)->ds_next_clones_obj =
	zap_create(mos,
	DMU_OT_NEXT_CLONES, DMU_OT_NONE, 0, tx);
	}
	VERIFY0(zap_add_int(mos,
	dsl_dataset_phys(origin)->ds_next_clones_obj,
	dsobj, tx));
	}

	dmu_buf_will_dirty(dd->dd_dbuf, tx);
	dsl_dir_phys(dd)->dd_origin_obj = origin->ds_object;
	if (spa_version(dp->dp_spa) >= SPA_VERSION_DIR_CLONES) {
	if (dsl_dir_phys(origin->ds_dir)->dd_clones == 0) {
	dmu_buf_will_dirty(origin->ds_dir->dd_dbuf, tx);
	dsl_dir_phys(origin->ds_dir)->dd_clones =
	zap_create(mos,
	DMU_OT_DSL_CLONES, DMU_OT_NONE, 0, tx);
	}
	VERIFY0(zap_add_int(mos,
	dsl_dir_phys(origin->ds_dir)->dd_clones,
	dsobj, tx));
	}
	}

	/* handle encryption */
	dsl_dataset_create_crypt_sync(dsobj, dd, origin, dcp, tx);

	if (spa_version(dp->dp_spa) >= SPA_VERSION_UNIQUE_ACCURATE)
	dsphys->ds_flags \|= DS_FLAG_UNIQUE_ACCURATE;

	dmu_buf_rele(dbuf, FTAG);

	dmu_buf_will_dirty(dd->dd_dbuf, tx);
	dsl_dir_phys(dd)->dd_head_dataset_obj = dsobj;

	return (dsobj);
	}

	static void
	dsl_dataset_zero_zil(dsl_dataset_t ds, dmu_tx_t tx)
	{
	objset_t *os;

	VERIFY0(dmu_objset_from_ds(ds, &os));
	if (bcmp(&os->os_zil_header, &zero_zil, sizeof (zero_zil)) != 0) {
	dsl_pool_t *dp = ds->ds_dir->dd_pool;
	zio_t *zio;

	bzero(&os->os_zil_header, sizeof (os->os_zil_header));
	if (os->os_encrypted)
	os->os_next_write_raw[tx->tx_txg & TXG_MASK] = B_TRUE;

	zio = zio_root(dp->dp_spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED);
	dsl_dataset_sync(ds, zio, tx);
	VERIFY0(zio_wait(zio));

	/* dsl_dataset_sync_done will drop this reference. */
	dmu_buf_add_ref(ds->ds_dbuf, ds);
	dsl_dataset_sync_done(ds, tx);
	}
	}

	uint64_t
	dsl_dataset_create_sync(dsl_dir_t pdd, const char lastname,
	dsl_dataset_t origin, uint64_t flags, cred_t cr,
	dsl_crypto_params_t dcp, dmu_tx_t tx)
	{
	dsl_pool_t *dp = pdd->dd_pool;
	uint64_t dsobj, ddobj;
	dsl_dir_t *dd;

	ASSERT(dmu_tx_is_syncing(tx));
	ASSERT(lastname[0] != '@');
	/*
	* Filesystems will eventually have their origin set to dp_origin_snap,
	* but that's taken care of in dsl_dataset_create_sync_dd. When
	* creating a filesystem, this function is called with origin equal to
	* NULL.
	*/
	if (origin != NULL)
	ASSERT3P(origin, !=, dp->dp_origin_snap);

	ddobj = dsl_dir_create_sync(dp, pdd, lastname, tx);
	VERIFY0(dsl_dir_hold_obj(dp, ddobj, lastname, FTAG, &dd));

	dsobj = dsl_dataset_create_sync_dd(dd, origin, dcp,
	flags & ~DS_CREATE_FLAG_NODIRTY, tx);

	dsl_deleg_set_create_perms(dd, tx, cr);

	/*
	* If we are creating a clone and the livelist feature is enabled,
	* add the entry DD_FIELD_LIVELIST to ZAP.
	*/
	if (origin != NULL &&
	spa_feature_is_enabled(dp->dp_spa, SPA_FEATURE_LIVELIST)) {
	objset_t *mos = dd->dd_pool->dp_meta_objset;
	dsl_dir_zapify(dd, tx);
	uint64_t obj = dsl_deadlist_alloc(mos, tx);
	VERIFY0(zap_add(mos, dd->dd_object, DD_FIELD_LIVELIST,
	sizeof (uint64_t), 1, &obj, tx));
	spa_feature_incr(dp->dp_spa, SPA_FEATURE_LIVELIST, tx);
	}

	/*
	* Since we're creating a new node we know it's a leaf, so we can
	* initialize the counts if the limit feature is active.
	*/
	if (spa_feature_is_active(dp->dp_spa, SPA_FEATURE_FS_SS_LIMIT)) {
	uint64_t cnt = 0;
	objset_t *os = dd->dd_pool->dp_meta_objset;

	dsl_dir_zapify(dd, tx);
	VERIFY0(zap_add(os, dd->dd_object, DD_FIELD_FILESYSTEM_COUNT,
	sizeof (cnt), 1, &cnt, tx));
	VERIFY0(zap_add(os, dd->dd_object, DD_FIELD_SNAPSHOT_COUNT,
	sizeof (cnt), 1, &cnt, tx));
	}

	dsl_dir_rele(dd, FTAG);

	/*
	* If we are creating a clone, make sure we zero out any stale
	* data from the origin snapshots zil header.
	*/
	if (origin != NULL && !(flags & DS_CREATE_FLAG_NODIRTY)) {
	dsl_dataset_t *ds;

	VERIFY0(dsl_dataset_hold_obj(dp, dsobj, FTAG, &ds));
	dsl_dataset_zero_zil(ds, tx);
	dsl_dataset_rele(ds, FTAG);
	}

	return (dsobj);
	}

	/*
	* The unique space in the head dataset can be calculated by subtracting
	* the space used in the most recent snapshot, that is still being used
	* in this file system, from the space currently in use. To figure out
	* the space in the most recent snapshot still in use, we need to take
	* the total space used in the snapshot and subtract out the space that
	* has been freed up since the snapshot was taken.
	*/
	void
	dsl_dataset_recalc_head_uniq(dsl_dataset_t *ds)
	{
	uint64_t mrs_used;
	uint64_t dlused, dlcomp, dluncomp;

	ASSERT(!ds->ds_is_snapshot);

	if (dsl_dataset_phys(ds)->ds_prev_snap_obj != 0)
	mrs_used = dsl_dataset_phys(ds->ds_prev)->ds_referenced_bytes;
	else
	mrs_used = 0;

	dsl_deadlist_space(&ds->ds_deadlist, &dlused, &dlcomp, &dluncomp);

	ASSERT3U(dlused, <=, mrs_used);
	dsl_dataset_phys(ds)->ds_unique_bytes =
	dsl_dataset_phys(ds)->ds_referenced_bytes - (mrs_used - dlused);

	if (spa_version(ds->ds_dir->dd_pool->dp_spa) >=
	SPA_VERSION_UNIQUE_ACCURATE)
	dsl_dataset_phys(ds)->ds_flags \|= DS_FLAG_UNIQUE_ACCURATE;
	}

	void
	dsl_dataset_remove_from_next_clones(dsl_dataset_t *ds, uint64_t obj,
	dmu_tx_t *tx)
	{
	objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset;
	uint64_t count __maybe_unused;
	int err;

	ASSERT(dsl_dataset_phys(ds)->ds_num_children >= 2);
	err = zap_remove_int(mos, dsl_dataset_phys(ds)->ds_next_clones_obj,
	obj, tx);
	/*
	* The err should not be ENOENT, but a bug in a previous version
	* of the code could cause upgrade_clones_cb() to not set
	* ds_next_snap_obj when it should, leading to a missing entry.
	* If we knew that the pool was created after
	* SPA_VERSION_NEXT_CLONES, we could assert that it isn't
	* ENOENT. However, at least we can check that we don't have
	* too many entries in the next_clones_obj even after failing to
	* remove this one.
	*/
	if (err != ENOENT)
	VERIFY0(err);
	ASSERT0(zap_count(mos, dsl_dataset_phys(ds)->ds_next_clones_obj,
	&count));
	ASSERT3U(count, <=, dsl_dataset_phys(ds)->ds_num_children - 2);
	}


	blkptr_t *
	dsl_dataset_get_blkptr(dsl_dataset_t *ds)
	{
	return (&dsl_dataset_phys(ds)->ds_bp);
	}

	spa_t *
	dsl_dataset_get_spa(dsl_dataset_t *ds)
	{
	return (ds->ds_dir->dd_pool->dp_spa);
	}

	void
	dsl_dataset_dirty(dsl_dataset_t ds, dmu_tx_t tx)
	{
	dsl_pool_t *dp;

	if (ds == NULL) /* this is the meta-objset */
	return;

	ASSERT(ds->ds_objset != NULL);

	if (dsl_dataset_phys(ds)->ds_next_snap_obj != 0)
	panic("dirtying snapshot!");

	/* Must not dirty a dataset in the same txg where it got snapshotted. */
	ASSERT3U(tx->tx_txg, >, dsl_dataset_phys(ds)->ds_prev_snap_txg);

	dp = ds->ds_dir->dd_pool;
	if (txg_list_add(&dp->dp_dirty_datasets, ds, tx->tx_txg)) {
	objset_t *os = ds->ds_objset;

	/* up the hold count until we can be written out */
	dmu_buf_add_ref(ds->ds_dbuf, ds);

	/* if this dataset is encrypted, grab a reference to the DCK */
	if (ds->ds_dir->dd_crypto_obj != 0 &&
	!os->os_raw_receive &&
	!os->os_next_write_raw[tx->tx_txg & TXG_MASK]) {
	ASSERT3P(ds->ds_key_mapping, !=, NULL);
	key_mapping_add_ref(ds->ds_key_mapping, ds);
	}
	}
	}

	static int
	dsl_dataset_snapshot_reserve_space(dsl_dataset_t ds, dmu_tx_t tx)
	{
	uint64_t asize;

	if (!dmu_tx_is_syncing(tx))
	return (0);

	/*
	* If there's an fs-only reservation, any blocks that might become
	* owned by the snapshot dataset must be accommodated by space
	* outside of the reservation.
	*/
	ASSERT(ds->ds_reserved == 0 \|\| DS_UNIQUE_IS_ACCURATE(ds));
	asize = MIN(dsl_dataset_phys(ds)->ds_unique_bytes, ds->ds_reserved);
	if (asize > dsl_dir_space_available(ds->ds_dir, NULL, 0, TRUE))
	return (SET_ERROR(ENOSPC));

	/*
	* Propagate any reserved space for this snapshot to other
	* snapshot checks in this sync group.
	*/
	if (asize > 0)
	dsl_dir_willuse_space(ds->ds_dir, asize, tx);

	return (0);
	}

	int
	dsl_dataset_snapshot_check_impl(dsl_dataset_t ds, const char snapname,
	dmu_tx_t tx, boolean_t recv, uint64_t cnt, cred_t cr, proc_t *proc)
	{
	int error;
	uint64_t value;

	ds->ds_trysnap_txg = tx->tx_txg;

	if (!dmu_tx_is_syncing(tx))
	return (0);

	/*
	* We don't allow multiple snapshots of the same txg. If there
	* is already one, try again.
	*/
	if (dsl_dataset_phys(ds)->ds_prev_snap_txg >= tx->tx_txg)
	return (SET_ERROR(EAGAIN));

	/*
	* Check for conflicting snapshot name.
	*/
	error = dsl_dataset_snap_lookup(ds, snapname, &value);
	if (error == 0)
	return (SET_ERROR(EEXIST));
	if (error != ENOENT)
	return (error);

	/*
	* We don't allow taking snapshots of inconsistent datasets, such as
	* those into which we are currently receiving. However, if we are
	* creating this snapshot as part of a receive, this check will be
	* executed atomically with respect to the completion of the receive
	* itself but prior to the clearing of DS_FLAG_INCONSISTENT; in this
	* case we ignore this, knowing it will be fixed up for us shortly in
	* dmu_recv_end_sync().
	*/
	if (!recv && DS_IS_INCONSISTENT(ds))
	return (SET_ERROR(EBUSY));

	/*
	* Skip the check for temporary snapshots or if we have already checked
	* the counts in dsl_dataset_snapshot_check. This means we really only
	* check the count here when we're receiving a stream.
	*/
	if (cnt != 0 && cr != NULL) {
	error = dsl_fs_ss_limit_check(ds->ds_dir, cnt,
	ZFS_PROP_SNAPSHOT_LIMIT, NULL, cr, proc);
	if (error != 0)
	return (error);
	}

	error = dsl_dataset_snapshot_reserve_space(ds, tx);
	if (error != 0)
	return (error);

	return (0);
	}

	int
	dsl_dataset_snapshot_check(void arg, dmu_tx_t tx)
	{
	dsl_dataset_snapshot_arg_t *ddsa = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	nvpair_t *pair;
	int rv = 0;

	/*
	* Pre-compute how many total new snapshots will be created for each
	* level in the tree and below. This is needed for validating the
	* snapshot limit when either taking a recursive snapshot or when
	* taking multiple snapshots.
	*
	* The problem is that the counts are not actually adjusted when
	* we are checking, only when we finally sync. For a single snapshot,
	* this is easy, the count will increase by 1 at each node up the tree,
	* but its more complicated for the recursive/multiple snapshot case.
	*
	* The dsl_fs_ss_limit_check function does recursively check the count
	* at each level up the tree but since it is validating each snapshot
	* independently we need to be sure that we are validating the complete
	* count for the entire set of snapshots. We do this by rolling up the
	* counts for each component of the name into an nvlist and then
	* checking each of those cases with the aggregated count.
	*
	* This approach properly handles not only the recursive snapshot
	* case (where we get all of those on the ddsa_snaps list) but also
	* the sibling case (e.g. snapshot a/b and a/c so that we will also
	* validate the limit on 'a' using a count of 2).
	*
	* We validate the snapshot names in the third loop and only report
	* name errors once.
	*/
	if (dmu_tx_is_syncing(tx)) {
	char *nm;
	nvlist_t *cnt_track = NULL;
	cnt_track = fnvlist_alloc();

	nm = kmem_alloc(MAXPATHLEN, KM_SLEEP);

	/* Rollup aggregated counts into the cnt_track list */
	for (pair = nvlist_next_nvpair(ddsa->ddsa_snaps, NULL);
	pair != NULL;
	pair = nvlist_next_nvpair(ddsa->ddsa_snaps, pair)) {
	char *pdelim;
	uint64_t val;

	(void) strlcpy(nm, nvpair_name(pair), MAXPATHLEN);
	pdelim = strchr(nm, '@');
	if (pdelim == NULL)
	continue;
	*pdelim = '\0';

	do {
	if (nvlist_lookup_uint64(cnt_track, nm,
	&val) == 0) {
	/* update existing entry */
	fnvlist_add_uint64(cnt_track, nm,
	val + 1);
	} else {
	/* add to list */
	fnvlist_add_uint64(cnt_track, nm, 1);
	}

	pdelim = strrchr(nm, '/');
	if (pdelim != NULL)
	*pdelim = '\0';
	} while (pdelim != NULL);
	}

	kmem_free(nm, MAXPATHLEN);

	/* Check aggregated counts at each level */
	for (pair = nvlist_next_nvpair(cnt_track, NULL);
	pair != NULL; pair = nvlist_next_nvpair(cnt_track, pair)) {
	int error = 0;
	char *name;
	uint64_t cnt = 0;
	dsl_dataset_t *ds;

	name = nvpair_name(pair);
	cnt = fnvpair_value_uint64(pair);
	ASSERT(cnt > 0);

	error = dsl_dataset_hold(dp, name, FTAG, &ds);
	if (error == 0) {
	error = dsl_fs_ss_limit_check(ds->ds_dir, cnt,
	ZFS_PROP_SNAPSHOT_LIMIT, NULL,
	ddsa->ddsa_cr, ddsa->ddsa_proc);
	dsl_dataset_rele(ds, FTAG);
	}

	if (error != 0) {
	if (ddsa->ddsa_errors != NULL)
	fnvlist_add_int32(ddsa->ddsa_errors,
	name, error);
	rv = error;
	/* only report one error for this check */
	break;
	}
	}
	nvlist_free(cnt_track);
	}

	for (pair = nvlist_next_nvpair(ddsa->ddsa_snaps, NULL);
	pair != NULL; pair = nvlist_next_nvpair(ddsa->ddsa_snaps, pair)) {
	int error = 0;
	dsl_dataset_t *ds;
	char name, atp = NULL;
	char dsname[ZFS_MAX_DATASET_NAME_LEN];

	name = nvpair_name(pair);
	if (strlen(name) >= ZFS_MAX_DATASET_NAME_LEN)
	error = SET_ERROR(ENAMETOOLONG);
	if (error == 0) {
	atp = strchr(name, '@');
	if (atp == NULL)
	error = SET_ERROR(EINVAL);
	if (error == 0)
	(void) strlcpy(dsname, name, atp - name + 1);
	}
	if (error == 0)
	error = dsl_dataset_hold(dp, dsname, FTAG, &ds);
	if (error == 0) {
	/* passing 0/NULL skips dsl_fs_ss_limit_check */
	error = dsl_dataset_snapshot_check_impl(ds,
	atp + 1, tx, B_FALSE, 0, NULL, NULL);
	dsl_dataset_rele(ds, FTAG);
	}

	if (error != 0) {
	if (ddsa->ddsa_errors != NULL) {
	fnvlist_add_int32(ddsa->ddsa_errors,
	name, error);
	}
	rv = error;
	}
	}

	return (rv);
	}

	void
	dsl_dataset_snapshot_sync_impl(dsl_dataset_t ds, const char snapname,
	dmu_tx_t *tx)
	{
	dsl_pool_t *dp = ds->ds_dir->dd_pool;
	dmu_buf_t *dbuf;
	dsl_dataset_phys_t *dsphys;
	uint64_t dsobj, crtxg;
	objset_t *mos = dp->dp_meta_objset;
	static zil_header_t zero_zil __maybe_unused;
	objset_t *os __maybe_unused;

	ASSERT(RRW_WRITE_HELD(&dp->dp_config_rwlock));

	/*
	* If we are on an old pool, the zil must not be active, in which
	* case it will be zeroed. Usually zil_suspend() accomplishes this.
	*/
	ASSERT(spa_version(dmu_tx_pool(tx)->dp_spa) >= SPA_VERSION_FAST_SNAP \|\|
	dmu_objset_from_ds(ds, &os) != 0 \|\|
	bcmp(&os->os_phys->os_zil_header, &zero_zil,
	sizeof (zero_zil)) == 0);

	/* Should not snapshot a dirty dataset. */
	ASSERT(!txg_list_member(&ds->ds_dir->dd_pool->dp_dirty_datasets,
	ds, tx->tx_txg));

	dsl_fs_ss_count_adjust(ds->ds_dir, 1, DD_FIELD_SNAPSHOT_COUNT, tx);

	/*
	* The origin's ds_creation_txg has to be < TXG_INITIAL
	*/
	if (strcmp(snapname, ORIGIN_DIR_NAME) == 0)
	crtxg = 1;
	else
	crtxg = tx->tx_txg;

	dsobj = dmu_object_alloc(mos, DMU_OT_DSL_DATASET, 0,
	DMU_OT_DSL_DATASET, sizeof (dsl_dataset_phys_t), tx);
	VERIFY0(dmu_bonus_hold(mos, dsobj, FTAG, &dbuf));
	dmu_buf_will_dirty(dbuf, tx);
	dsphys = dbuf->db_data;
	bzero(dsphys, sizeof (dsl_dataset_phys_t));
	dsphys->ds_dir_obj = ds->ds_dir->dd_object;
	dsphys->ds_fsid_guid = unique_create();
	(void) random_get_pseudo_bytes((void*)&dsphys->ds_guid,
	sizeof (dsphys->ds_guid));
	dsphys->ds_prev_snap_obj = dsl_dataset_phys(ds)->ds_prev_snap_obj;
	dsphys->ds_prev_snap_txg = dsl_dataset_phys(ds)->ds_prev_snap_txg;
	dsphys->ds_next_snap_obj = ds->ds_object;
	dsphys->ds_num_children = 1;
	dsphys->ds_creation_time = gethrestime_sec();
	dsphys->ds_creation_txg = crtxg;
	dsphys->ds_deadlist_obj = dsl_dataset_phys(ds)->ds_deadlist_obj;
	dsphys->ds_referenced_bytes = dsl_dataset_phys(ds)->ds_referenced_bytes;
	dsphys->ds_compressed_bytes = dsl_dataset_phys(ds)->ds_compressed_bytes;
	dsphys->ds_uncompressed_bytes =
	dsl_dataset_phys(ds)->ds_uncompressed_bytes;
	dsphys->ds_flags = dsl_dataset_phys(ds)->ds_flags;
	rrw_enter(&ds->ds_bp_rwlock, RW_READER, FTAG);
	dsphys->ds_bp = dsl_dataset_phys(ds)->ds_bp;
	rrw_exit(&ds->ds_bp_rwlock, FTAG);
	dmu_buf_rele(dbuf, FTAG);

	for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
	if (zfeature_active(f, ds->ds_feature[f])) {
	dsl_dataset_activate_feature(dsobj, f,
	ds->ds_feature[f], tx);
	}
	}

	ASSERT3U(ds->ds_prev != 0, ==,
	dsl_dataset_phys(ds)->ds_prev_snap_obj != 0);
	if (ds->ds_prev) {
	uint64_t next_clones_obj =
	dsl_dataset_phys(ds->ds_prev)->ds_next_clones_obj;
	ASSERT(dsl_dataset_phys(ds->ds_prev)->ds_next_snap_obj ==
	ds->ds_object \|\|
	dsl_dataset_phys(ds->ds_prev)->ds_num_children > 1);
	if (dsl_dataset_phys(ds->ds_prev)->ds_next_snap_obj ==
	ds->ds_object) {
	dmu_buf_will_dirty(ds->ds_prev->ds_dbuf, tx);
	ASSERT3U(dsl_dataset_phys(ds)->ds_prev_snap_txg, ==,
	dsl_dataset_phys(ds->ds_prev)->ds_creation_txg);
	dsl_dataset_phys(ds->ds_prev)->ds_next_snap_obj = dsobj;
	} else if (next_clones_obj != 0) {
	dsl_dataset_remove_from_next_clones(ds->ds_prev,
	dsphys->ds_next_snap_obj, tx);
	VERIFY0(zap_add_int(mos,
	next_clones_obj, dsobj, tx));
	}
	}

	/*
	* If we have a reference-reservation on this dataset, we will
	* need to increase the amount of refreservation being charged
	* since our unique space is going to zero.
	*/
	if (ds->ds_reserved) {
	int64_t delta;
	ASSERT(DS_UNIQUE_IS_ACCURATE(ds));
	delta = MIN(dsl_dataset_phys(ds)->ds_unique_bytes,
	ds->ds_reserved);
	dsl_dir_diduse_space(ds->ds_dir, DD_USED_REFRSRV,
	delta, 0, 0, tx);
	}

	dmu_buf_will_dirty(ds->ds_dbuf, tx);
	dsl_dataset_phys(ds)->ds_deadlist_obj =
	dsl_deadlist_clone(&ds->ds_deadlist, UINT64_MAX,
	dsl_dataset_phys(ds)->ds_prev_snap_obj, tx);
	dsl_deadlist_close(&ds->ds_deadlist);
	dsl_deadlist_open(&ds->ds_deadlist, mos,
	dsl_dataset_phys(ds)->ds_deadlist_obj);
	dsl_deadlist_add_key(&ds->ds_deadlist,
	dsl_dataset_phys(ds)->ds_prev_snap_txg, tx);
	dsl_bookmark_snapshotted(ds, tx);

	if (dsl_dataset_remap_deadlist_exists(ds)) {
	uint64_t remap_deadlist_obj =
	dsl_dataset_get_remap_deadlist_object(ds);
	/*
	* Move the remap_deadlist to the snapshot. The head
	* will create a new remap deadlist on demand, from
	* dsl_dataset_block_remapped().
	*/
	dsl_dataset_unset_remap_deadlist_object(ds, tx);
	dsl_deadlist_close(&ds->ds_remap_deadlist);

	dmu_object_zapify(mos, dsobj, DMU_OT_DSL_DATASET, tx);
	VERIFY0(zap_add(mos, dsobj, DS_FIELD_REMAP_DEADLIST,
	sizeof (remap_deadlist_obj), 1, &remap_deadlist_obj, tx));
	}

	/*
	* Create a ivset guid for this snapshot if the dataset is
	* encrypted. This may be overridden by a raw receive. A
	* previous implementation of this code did not have this
	* field as part of the on-disk format for ZFS encryption
	* (see errata #4). As part of the remediation for this
	* issue, we ask the user to enable the bookmark_v2 feature
	* which is now a dependency of the encryption feature. We
	* use this as a heuristic to determine when the user has
	* elected to correct any datasets created with the old code.
	* As a result, we only do this step if the bookmark_v2
	* feature is enabled, which limits the number of states a
	* given pool / dataset can be in with regards to terms of
	* correcting the issue.
	*/
	if (ds->ds_dir->dd_crypto_obj != 0 &&
	spa_feature_is_enabled(dp->dp_spa, SPA_FEATURE_BOOKMARK_V2)) {
	uint64_t ivset_guid = unique_create();

	dmu_object_zapify(mos, dsobj, DMU_OT_DSL_DATASET, tx);
	VERIFY0(zap_add(mos, dsobj, DS_FIELD_IVSET_GUID,
	sizeof (ivset_guid), 1, &ivset_guid, tx));
	}

	ASSERT3U(dsl_dataset_phys(ds)->ds_prev_snap_txg, <, tx->tx_txg);
	dsl_dataset_phys(ds)->ds_prev_snap_obj = dsobj;
	dsl_dataset_phys(ds)->ds_prev_snap_txg = crtxg;
	dsl_dataset_phys(ds)->ds_unique_bytes = 0;

	if (spa_version(dp->dp_spa) >= SPA_VERSION_UNIQUE_ACCURATE)
	dsl_dataset_phys(ds)->ds_flags \|= DS_FLAG_UNIQUE_ACCURATE;

	VERIFY0(zap_add(mos, dsl_dataset_phys(ds)->ds_snapnames_zapobj,
	snapname, 8, 1, &dsobj, tx));

	if (ds->ds_prev)
	dsl_dataset_rele(ds->ds_prev, ds);
	VERIFY0(dsl_dataset_hold_obj(dp,
	dsl_dataset_phys(ds)->ds_prev_snap_obj, ds, &ds->ds_prev));

	dsl_scan_ds_snapshotted(ds, tx);

	dsl_dir_snap_cmtime_update(ds->ds_dir);

	spa_history_log_internal_ds(ds->ds_prev, "snapshot", tx, " ");
	}

	void
	dsl_dataset_snapshot_sync(void arg, dmu_tx_t tx)
	{
	dsl_dataset_snapshot_arg_t *ddsa = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	nvpair_t *pair;

	for (pair = nvlist_next_nvpair(ddsa->ddsa_snaps, NULL);
	pair != NULL; pair = nvlist_next_nvpair(ddsa->ddsa_snaps, pair)) {
	dsl_dataset_t *ds;
	char name, atp;
	char dsname[ZFS_MAX_DATASET_NAME_LEN];

	name = nvpair_name(pair);
	atp = strchr(name, '@');
	(void) strlcpy(dsname, name, atp - name + 1);
	VERIFY0(dsl_dataset_hold(dp, dsname, FTAG, &ds));

	dsl_dataset_snapshot_sync_impl(ds, atp + 1, tx);
	if (ddsa->ddsa_props != NULL) {
	dsl_props_set_sync_impl(ds->ds_prev,
	ZPROP_SRC_LOCAL, ddsa->ddsa_props, tx);
	}
	dsl_dataset_rele(ds, FTAG);
	}
	}

	/*
	* The snapshots must all be in the same pool.
	* All-or-nothing: if there are any failures, nothing will be modified.
	*/
	int
	dsl_dataset_snapshot(nvlist_t snaps, nvlist_t props, nvlist_t *errors)
	{
	dsl_dataset_snapshot_arg_t ddsa;
	nvpair_t *pair;
	boolean_t needsuspend;
	int error;
	spa_t *spa;
	char *firstname;
	nvlist_t *suspended = NULL;

	pair = nvlist_next_nvpair(snaps, NULL);
	if (pair == NULL)
	return (0);
	firstname = nvpair_name(pair);

	error = spa_open(firstname, &spa, FTAG);
	if (error != 0)
	return (error);
	needsuspend = (spa_version(spa) < SPA_VERSION_FAST_SNAP);
	spa_close(spa, FTAG);

	if (needsuspend) {
	suspended = fnvlist_alloc();
	for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
	pair = nvlist_next_nvpair(snaps, pair)) {
	char fsname[ZFS_MAX_DATASET_NAME_LEN];
	char *snapname = nvpair_name(pair);
	char *atp;
	void *cookie;

	atp = strchr(snapname, '@');
	if (atp == NULL) {
	error = SET_ERROR(EINVAL);
	break;
	}
	(void) strlcpy(fsname, snapname, atp - snapname + 1);

	error = zil_suspend(fsname, &cookie);
	if (error != 0)
	break;
	fnvlist_add_uint64(suspended, fsname,
	(uintptr_t)cookie);
	}
	}

	ddsa.ddsa_snaps = snaps;
	ddsa.ddsa_props = props;
	ddsa.ddsa_errors = errors;
	ddsa.ddsa_cr = CRED();
	ddsa.ddsa_proc = curproc;

	if (error == 0) {
	error = dsl_sync_task(firstname, dsl_dataset_snapshot_check,
	dsl_dataset_snapshot_sync, &ddsa,
	fnvlist_num_pairs(snaps) * 3, ZFS_SPACE_CHECK_NORMAL);
	}

	if (suspended != NULL) {
	for (pair = nvlist_next_nvpair(suspended, NULL); pair != NULL;
	pair = nvlist_next_nvpair(suspended, pair)) {
	zil_resume((void *)(uintptr_t)
	fnvpair_value_uint64(pair));
	}
	fnvlist_free(suspended);
	}

	if (error == 0) {
	for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
	pair = nvlist_next_nvpair(snaps, pair)) {
	zvol_create_minor(nvpair_name(pair));
	}
	}

	return (error);
	}

	typedef struct dsl_dataset_snapshot_tmp_arg {
	const char *ddsta_fsname;
	const char *ddsta_snapname;
	minor_t ddsta_cleanup_minor;
	const char *ddsta_htag;
	} dsl_dataset_snapshot_tmp_arg_t;

	static int
	dsl_dataset_snapshot_tmp_check(void arg, dmu_tx_t tx)
	{
	dsl_dataset_snapshot_tmp_arg_t *ddsta = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	dsl_dataset_t *ds;
	int error;

	error = dsl_dataset_hold(dp, ddsta->ddsta_fsname, FTAG, &ds);
	if (error != 0)
	return (error);

	/* NULL cred means no limit check for tmp snapshot */
	error = dsl_dataset_snapshot_check_impl(ds, ddsta->ddsta_snapname,
	tx, B_FALSE, 0, NULL, NULL);
	if (error != 0) {
	dsl_dataset_rele(ds, FTAG);
	return (error);
	}

	if (spa_version(dp->dp_spa) < SPA_VERSION_USERREFS) {
	dsl_dataset_rele(ds, FTAG);
	return (SET_ERROR(ENOTSUP));
	}
	error = dsl_dataset_user_hold_check_one(NULL, ddsta->ddsta_htag,
	B_TRUE, tx);
	if (error != 0) {
	dsl_dataset_rele(ds, FTAG);
	return (error);
	}

	dsl_dataset_rele(ds, FTAG);
	return (0);
	}

	static void
	dsl_dataset_snapshot_tmp_sync(void arg, dmu_tx_t tx)
	{
	dsl_dataset_snapshot_tmp_arg_t *ddsta = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	dsl_dataset_t *ds = NULL;

	VERIFY0(dsl_dataset_hold(dp, ddsta->ddsta_fsname, FTAG, &ds));

	dsl_dataset_snapshot_sync_impl(ds, ddsta->ddsta_snapname, tx);
	dsl_dataset_user_hold_sync_one(ds->ds_prev, ddsta->ddsta_htag,
	ddsta->ddsta_cleanup_minor, gethrestime_sec(), tx);
	dsl_destroy_snapshot_sync_impl(ds->ds_prev, B_TRUE, tx);

	dsl_dataset_rele(ds, FTAG);
	}

	int
	dsl_dataset_snapshot_tmp(const char fsname, const char snapname,
	minor_t cleanup_minor, const char *htag)
	{
	dsl_dataset_snapshot_tmp_arg_t ddsta;
	int error;
	spa_t *spa;
	boolean_t needsuspend;
	void *cookie;

	ddsta.ddsta_fsname = fsname;
	ddsta.ddsta_snapname = snapname;
	ddsta.ddsta_cleanup_minor = cleanup_minor;
	ddsta.ddsta_htag = htag;

	error = spa_open(fsname, &spa, FTAG);
	if (error != 0)
	return (error);
	needsuspend = (spa_version(spa) < SPA_VERSION_FAST_SNAP);
	spa_close(spa, FTAG);

	if (needsuspend) {
	error = zil_suspend(fsname, &cookie);
	if (error != 0)
	return (error);
	}

	error = dsl_sync_task(fsname, dsl_dataset_snapshot_tmp_check,
	dsl_dataset_snapshot_tmp_sync, &ddsta, 3, ZFS_SPACE_CHECK_RESERVED);

	if (needsuspend)
	zil_resume(cookie);
	return (error);
	}

	void
	dsl_dataset_sync(dsl_dataset_t ds, zio_t zio, dmu_tx_t *tx)
	{
	ASSERT(dmu_tx_is_syncing(tx));
	ASSERT(ds->ds_objset != NULL);
	ASSERT(dsl_dataset_phys(ds)->ds_next_snap_obj == 0);

	/*
	* in case we had to change ds_fsid_guid when we opened it,
	* sync it out now.
	*/
	dmu_buf_will_dirty(ds->ds_dbuf, tx);
	dsl_dataset_phys(ds)->ds_fsid_guid = ds->ds_fsid_guid;

	if (ds->ds_resume_bytes[tx->tx_txg & TXG_MASK] != 0) {
	VERIFY0(zap_update(tx->tx_pool->dp_meta_objset,
	ds->ds_object, DS_FIELD_RESUME_OBJECT, 8, 1,
	&ds->ds_resume_object[tx->tx_txg & TXG_MASK], tx));
	VERIFY0(zap_update(tx->tx_pool->dp_meta_objset,
	ds->ds_object, DS_FIELD_RESUME_OFFSET, 8, 1,
	&ds->ds_resume_offset[tx->tx_txg & TXG_MASK], tx));
	VERIFY0(zap_update(tx->tx_pool->dp_meta_objset,
	ds->ds_object, DS_FIELD_RESUME_BYTES, 8, 1,
	&ds->ds_resume_bytes[tx->tx_txg & TXG_MASK], tx));
	ds->ds_resume_object[tx->tx_txg & TXG_MASK] = 0;
	ds->ds_resume_offset[tx->tx_txg & TXG_MASK] = 0;
	ds->ds_resume_bytes[tx->tx_txg & TXG_MASK] = 0;
	}

	dmu_objset_sync(ds->ds_objset, zio, tx);

	for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
	if (zfeature_active(f, ds->ds_feature_activation[f])) {
	if (zfeature_active(f, ds->ds_feature[f]))
	continue;
	dsl_dataset_activate_feature(ds->ds_object, f,
	ds->ds_feature_activation[f], tx);
	ds->ds_feature[f] = ds->ds_feature_activation[f];
	}
	}
	}

	/*
	* Check if the percentage of blocks shared between the clone and the
	* snapshot (as opposed to those that are clone only) is below a certain
	* threshold
	*/
	static boolean_t
	dsl_livelist_should_disable(dsl_dataset_t *ds)
	{
	uint64_t used, referenced;
	int percent_shared;

	used = dsl_dir_get_usedds(ds->ds_dir);
	referenced = dsl_get_referenced(ds);
	ASSERT3U(referenced, >=, 0);
	ASSERT3U(used, >=, 0);
	if (referenced == 0)
	return (B_FALSE);
	percent_shared = (100 * (referenced - used)) / referenced;
	if (percent_shared <= zfs_livelist_min_percent_shared)
	return (B_TRUE);
	return (B_FALSE);
	}

	/*
	* Check if it is possible to combine two livelist entries into one.
	* This is the case if the combined number of 'live' blkptrs (ALLOCs that
	* don't have a matching FREE) is under the maximum sublist size.
	* We check this by subtracting twice the total number of frees from the total
	* number of blkptrs. FREEs are counted twice because each FREE blkptr
	* will cancel out an ALLOC blkptr when the livelist is processed.
	*/
	static boolean_t
	dsl_livelist_should_condense(dsl_deadlist_entry_t *first,
	dsl_deadlist_entry_t *next)
	{
	uint64_t total_free = first->dle_bpobj.bpo_phys->bpo_num_freed +
	next->dle_bpobj.bpo_phys->bpo_num_freed;
	uint64_t total_entries = first->dle_bpobj.bpo_phys->bpo_num_blkptrs +
	next->dle_bpobj.bpo_phys->bpo_num_blkptrs;
	if ((total_entries - (2 * total_free)) < zfs_livelist_max_entries)
	return (B_TRUE);
	return (B_FALSE);
	}

	typedef struct try_condense_arg {
	spa_t *spa;
	dsl_dataset_t *ds;
	} try_condense_arg_t;

	/*
	* Iterate over the livelist entries, searching for a pair to condense.
	* A nonzero return value means stop, 0 means keep looking.
	*/
	static int
	dsl_livelist_try_condense(void arg, dsl_deadlist_entry_t first)
	{
	try_condense_arg_t *tca = arg;
	spa_t *spa = tca->spa;
	dsl_dataset_t *ds = tca->ds;
	dsl_deadlist_t *ll = &ds->ds_dir->dd_livelist;
	dsl_deadlist_entry_t *next;

	/* The condense thread has not yet been created at import */
	if (spa->spa_livelist_condense_zthr == NULL)
	return (1);

	/* A condense is already in progress */
	if (spa->spa_to_condense.ds != NULL)
	return (1);

	next = AVL_NEXT(&ll->dl_tree, &first->dle_node);
	/* The livelist has only one entry - don't condense it */
	if (next == NULL)
	return (1);

	/* Next is the newest entry - don't condense it */
	if (AVL_NEXT(&ll->dl_tree, &next->dle_node) == NULL)
	return (1);

	/* This pair is not ready to condense but keep looking */
	if (!dsl_livelist_should_condense(first, next))
	return (0);

	/*
	* Add a ref to prevent the dataset from being evicted while
	* the condense zthr or synctask are running. Ref will be
	* released at the end of the condense synctask
	*/
	dmu_buf_add_ref(ds->ds_dbuf, spa);

	spa->spa_to_condense.ds = ds;
	spa->spa_to_condense.first = first;
	spa->spa_to_condense.next = next;
	spa->spa_to_condense.syncing = B_FALSE;
	spa->spa_to_condense.cancelled = B_FALSE;

	zthr_wakeup(spa->spa_livelist_condense_zthr);
	return (1);
	}

	static void
	dsl_flush_pending_livelist(dsl_dataset_t ds, dmu_tx_t tx)
	{
	dsl_dir_t *dd = ds->ds_dir;
	spa_t *spa = ds->ds_dir->dd_pool->dp_spa;
	dsl_deadlist_entry_t *last = dsl_deadlist_last(&dd->dd_livelist);

	/* Check if we need to add a new sub-livelist */
	if (last == NULL) {
	/* The livelist is empty */
	dsl_deadlist_add_key(&dd->dd_livelist,
	tx->tx_txg - 1, tx);
	} else if (spa_sync_pass(spa) == 1) {
	/*
	* Check if the newest entry is full. If it is, make a new one.
	* We only do this once per sync because we could overfill a
	* sublist in one sync pass and don't want to add another entry
	* for a txg that is already represented. This ensures that
	* blkptrs born in the same txg are stored in the same sublist.
	*/
	bpobj_t bpobj = last->dle_bpobj;
	uint64_t all = bpobj.bpo_phys->bpo_num_blkptrs;
	uint64_t free = bpobj.bpo_phys->bpo_num_freed;
	uint64_t alloc = all - free;
	if (alloc > zfs_livelist_max_entries) {
	dsl_deadlist_add_key(&dd->dd_livelist,
	tx->tx_txg - 1, tx);
	}
	}

	/* Insert each entry into the on-disk livelist */
	bplist_iterate(&dd->dd_pending_allocs,
	dsl_deadlist_insert_alloc_cb, &dd->dd_livelist, tx);
	bplist_iterate(&dd->dd_pending_frees,
	dsl_deadlist_insert_free_cb, &dd->dd_livelist, tx);

	/* Attempt to condense every pair of adjacent entries */
	try_condense_arg_t arg = {
	.spa = spa,
	.ds = ds
	};
	dsl_deadlist_iterate(&dd->dd_livelist, dsl_livelist_try_condense,
	&arg);
	}

	void
	dsl_dataset_sync_done(dsl_dataset_t ds, dmu_tx_t tx)
	{
	objset_t *os = ds->ds_objset;

	bplist_iterate(&ds->ds_pending_deadlist,
	dsl_deadlist_insert_alloc_cb, &ds->ds_deadlist, tx);

	if (dsl_deadlist_is_open(&ds->ds_dir->dd_livelist)) {
	dsl_flush_pending_livelist(ds, tx);
	if (dsl_livelist_should_disable(ds)) {
	dsl_dir_remove_livelist(ds->ds_dir, tx, B_TRUE);
	}
	}

	dsl_bookmark_sync_done(ds, tx);

	- multilist_destroy(os->os_synced_dnodes);
	- os->os_synced_dnodes = NULL;
	+ multilist_destroy(&os->os_synced_dnodes);

	if (os->os_encrypted)
	os->os_next_write_raw[tx->tx_txg & TXG_MASK] = B_FALSE;
	else
	ASSERT0(os->os_next_write_raw[tx->tx_txg & TXG_MASK]);

	ASSERT(!dmu_objset_is_dirty(os, dmu_tx_get_txg(tx)));

	dmu_buf_rele(ds->ds_dbuf, ds);
	}

	int
	get_clones_stat_impl(dsl_dataset_t ds, nvlist_t val)
	{
	uint64_t count = 0;
	objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset;
	zap_cursor_t zc;
	zap_attribute_t za;

	ASSERT(dsl_pool_config_held(ds->ds_dir->dd_pool));

	/*
	* There may be missing entries in ds_next_clones_obj
	* due to a bug in a previous version of the code.
	* Only trust it if it has the right number of entries.
	*/
	if (dsl_dataset_phys(ds)->ds_next_clones_obj != 0) {
	VERIFY0(zap_count(mos, dsl_dataset_phys(ds)->ds_next_clones_obj,
	&count));
	}
	if (count != dsl_dataset_phys(ds)->ds_num_children - 1) {
	return (SET_ERROR(ENOENT));
	}
	for (zap_cursor_init(&zc, mos,
	dsl_dataset_phys(ds)->ds_next_clones_obj);
	zap_cursor_retrieve(&zc, &za) == 0;
	zap_cursor_advance(&zc)) {
	dsl_dataset_t *clone;
	char buf[ZFS_MAX_DATASET_NAME_LEN];
	VERIFY0(dsl_dataset_hold_obj(ds->ds_dir->dd_pool,
	za.za_first_integer, FTAG, &clone));
	dsl_dir_name(clone->ds_dir, buf);
	fnvlist_add_boolean(val, buf);
	dsl_dataset_rele(clone, FTAG);
	}
	zap_cursor_fini(&zc);
	return (0);
	}

	void
	get_clones_stat(dsl_dataset_t ds, nvlist_t nv)
	{
	nvlist_t *propval = fnvlist_alloc();
	nvlist_t *val = fnvlist_alloc();

	if (get_clones_stat_impl(ds, val) == 0) {
	fnvlist_add_nvlist(propval, ZPROP_VALUE, val);
	fnvlist_add_nvlist(nv, zfs_prop_to_name(ZFS_PROP_CLONES),
	propval);
	}

	nvlist_free(val);
	nvlist_free(propval);
	}

	/*
	* Returns a string that represents the receive resume stats token. It should
	* be freed with strfree().
	*/
	char *
	get_receive_resume_stats_impl(dsl_dataset_t *ds)
	{
	dsl_pool_t *dp = ds->ds_dir->dd_pool;

	if (dsl_dataset_has_resume_receive_state(ds)) {
	char *str;
	void *packed;
	uint8_t *compressed;
	uint64_t val;
	nvlist_t *token_nv = fnvlist_alloc();
	size_t packed_size, compressed_size;

	if (zap_lookup(dp->dp_meta_objset, ds->ds_object,
	DS_FIELD_RESUME_FROMGUID, sizeof (val), 1, &val) == 0) {
	fnvlist_add_uint64(token_nv, "fromguid", val);
	}
	if (zap_lookup(dp->dp_meta_objset, ds->ds_object,
	DS_FIELD_RESUME_OBJECT, sizeof (val), 1, &val) == 0) {
	fnvlist_add_uint64(token_nv, "object", val);
	}
	if (zap_lookup(dp->dp_meta_objset, ds->ds_object,
	DS_FIELD_RESUME_OFFSET, sizeof (val), 1, &val) == 0) {
	fnvlist_add_uint64(token_nv, "offset", val);
	}
	if (zap_lookup(dp->dp_meta_objset, ds->ds_object,
	DS_FIELD_RESUME_BYTES, sizeof (val), 1, &val) == 0) {
	fnvlist_add_uint64(token_nv, "bytes", val);
	}
	if (zap_lookup(dp->dp_meta_objset, ds->ds_object,
	DS_FIELD_RESUME_TOGUID, sizeof (val), 1, &val) == 0) {
	fnvlist_add_uint64(token_nv, "toguid", val);
	}
	char buf[MAXNAMELEN];
	if (zap_lookup(dp->dp_meta_objset, ds->ds_object,
	DS_FIELD_RESUME_TONAME, 1, sizeof (buf), buf) == 0) {
	fnvlist_add_string(token_nv, "toname", buf);
	}
	if (zap_contains(dp->dp_meta_objset, ds->ds_object,
	DS_FIELD_RESUME_LARGEBLOCK) == 0) {
	fnvlist_add_boolean(token_nv, "largeblockok");
	}
	if (zap_contains(dp->dp_meta_objset, ds->ds_object,
	DS_FIELD_RESUME_EMBEDOK) == 0) {
	fnvlist_add_boolean(token_nv, "embedok");
	}
	if (zap_contains(dp->dp_meta_objset, ds->ds_object,
	DS_FIELD_RESUME_COMPRESSOK) == 0) {
	fnvlist_add_boolean(token_nv, "compressok");
	}
	if (zap_contains(dp->dp_meta_objset, ds->ds_object,
	DS_FIELD_RESUME_RAWOK) == 0) {
	fnvlist_add_boolean(token_nv, "rawok");
	}
	if (dsl_dataset_feature_is_active(ds,
	SPA_FEATURE_REDACTED_DATASETS)) {
	uint64_t num_redact_snaps;
	uint64_t *redact_snaps;
	VERIFY(dsl_dataset_get_uint64_array_feature(ds,
	SPA_FEATURE_REDACTED_DATASETS, &num_redact_snaps,
	&redact_snaps));
	fnvlist_add_uint64_array(token_nv, "redact_snaps",
	redact_snaps, num_redact_snaps);
	}
	if (zap_contains(dp->dp_meta_objset, ds->ds_object,
	DS_FIELD_RESUME_REDACT_BOOKMARK_SNAPS) == 0) {
	uint64_t num_redact_snaps, int_size;
	uint64_t *redact_snaps;
	VERIFY0(zap_length(dp->dp_meta_objset, ds->ds_object,
	DS_FIELD_RESUME_REDACT_BOOKMARK_SNAPS, &int_size,
	&num_redact_snaps));
	ASSERT3U(int_size, ==, sizeof (uint64_t));

	redact_snaps = kmem_alloc(int_size * num_redact_snaps,
	KM_SLEEP);
	VERIFY0(zap_lookup(dp->dp_meta_objset, ds->ds_object,
	DS_FIELD_RESUME_REDACT_BOOKMARK_SNAPS, int_size,
	num_redact_snaps, redact_snaps));
	fnvlist_add_uint64_array(token_nv, "book_redact_snaps",
	redact_snaps, num_redact_snaps);
	kmem_free(redact_snaps, int_size * num_redact_snaps);
	}
	packed = fnvlist_pack(token_nv, &packed_size);
	fnvlist_free(token_nv);
	compressed = kmem_alloc(packed_size, KM_SLEEP);

	compressed_size = gzip_compress(packed, compressed,
	packed_size, packed_size, 6);

	zio_cksum_t cksum;
	fletcher_4_native_varsize(compressed, compressed_size, &cksum);

	size_t alloc_size = compressed_size * 2 + 1;
	str = kmem_alloc(alloc_size, KM_SLEEP);
	for (int i = 0; i < compressed_size; i++) {
	size_t offset = i * 2;
	(void) snprintf(str + offset, alloc_size - offset,
	"%02x", compressed[i]);
	}
	str[compressed_size * 2] = '\0';
	char *propval = kmem_asprintf("%u-%llx-%llx-%s",
	ZFS_SEND_RESUME_TOKEN_VERSION,
	(longlong_t)cksum.zc_word[0],
	(longlong_t)packed_size, str);
	kmem_free(packed, packed_size);
	kmem_free(str, alloc_size);
	kmem_free(compressed, packed_size);
	return (propval);
	}
	return (kmem_strdup(""));
	}

	/*
	* Returns a string that represents the receive resume stats token of the
	* dataset's child. It should be freed with strfree().
	*/
	char *
	get_child_receive_stats(dsl_dataset_t *ds)
	{
	char recvname[ZFS_MAX_DATASET_NAME_LEN + 6];
	dsl_dataset_t *recv_ds;
	dsl_dataset_name(ds, recvname);
	if (strlcat(recvname, "/", sizeof (recvname)) <
	sizeof (recvname) &&
	strlcat(recvname, recv_clone_name, sizeof (recvname)) <
	sizeof (recvname) &&
	dsl_dataset_hold(ds->ds_dir->dd_pool, recvname, FTAG,
	&recv_ds) == 0) {
	char *propval = get_receive_resume_stats_impl(recv_ds);
	dsl_dataset_rele(recv_ds, FTAG);
	return (propval);
	}
	return (kmem_strdup(""));
	}

	static void
	get_receive_resume_stats(dsl_dataset_t ds, nvlist_t nv)
	{
	char *propval = get_receive_resume_stats_impl(ds);
	if (strcmp(propval, "") != 0) {
	dsl_prop_nvlist_add_string(nv,
	ZFS_PROP_RECEIVE_RESUME_TOKEN, propval);
	} else {
	char *childval = get_child_receive_stats(ds);
	if (strcmp(childval, "") != 0) {
	dsl_prop_nvlist_add_string(nv,
	ZFS_PROP_RECEIVE_RESUME_TOKEN, childval);
	}
	kmem_strfree(childval);
	}
	kmem_strfree(propval);
	}

	uint64_t
	dsl_get_refratio(dsl_dataset_t *ds)
	{
	uint64_t ratio = dsl_dataset_phys(ds)->ds_compressed_bytes == 0 ? 100 :
	(dsl_dataset_phys(ds)->ds_uncompressed_bytes * 100 /
	dsl_dataset_phys(ds)->ds_compressed_bytes);
	return (ratio);
	}

	uint64_t
	dsl_get_logicalreferenced(dsl_dataset_t *ds)
	{
	return (dsl_dataset_phys(ds)->ds_uncompressed_bytes);
	}

	uint64_t
	dsl_get_compressratio(dsl_dataset_t *ds)
	{
	if (ds->ds_is_snapshot) {
	return (dsl_get_refratio(ds));
	} else {
	dsl_dir_t *dd = ds->ds_dir;
	mutex_enter(&dd->dd_lock);
	uint64_t val = dsl_dir_get_compressratio(dd);
	mutex_exit(&dd->dd_lock);
	return (val);
	}
	}

	uint64_t
	dsl_get_used(dsl_dataset_t *ds)
	{
	if (ds->ds_is_snapshot) {
	return (dsl_dataset_phys(ds)->ds_unique_bytes);
	} else {
	dsl_dir_t *dd = ds->ds_dir;
	mutex_enter(&dd->dd_lock);
	uint64_t val = dsl_dir_get_used(dd);
	mutex_exit(&dd->dd_lock);
	return (val);
	}
	}

	uint64_t
	dsl_get_creation(dsl_dataset_t *ds)
	{
	return (dsl_dataset_phys(ds)->ds_creation_time);
	}

	uint64_t
	dsl_get_creationtxg(dsl_dataset_t *ds)
	{
	return (dsl_dataset_phys(ds)->ds_creation_txg);
	}

	uint64_t
	dsl_get_refquota(dsl_dataset_t *ds)
	{
	return (ds->ds_quota);
	}

	uint64_t
	dsl_get_refreservation(dsl_dataset_t *ds)
	{
	return (ds->ds_reserved);
	}

	uint64_t
	dsl_get_guid(dsl_dataset_t *ds)
	{
	return (dsl_dataset_phys(ds)->ds_guid);
	}

	uint64_t
	dsl_get_unique(dsl_dataset_t *ds)
	{
	return (dsl_dataset_phys(ds)->ds_unique_bytes);
	}

	uint64_t
	dsl_get_objsetid(dsl_dataset_t *ds)
	{
	return (ds->ds_object);
	}

	uint64_t
	dsl_get_userrefs(dsl_dataset_t *ds)
	{
	return (ds->ds_userrefs);
	}

	uint64_t
	dsl_get_defer_destroy(dsl_dataset_t *ds)
	{
	return (DS_IS_DEFER_DESTROY(ds) ? 1 : 0);
	}

	uint64_t
	dsl_get_referenced(dsl_dataset_t *ds)
	{
	return (dsl_dataset_phys(ds)->ds_referenced_bytes);
	}

	uint64_t
	dsl_get_numclones(dsl_dataset_t *ds)
	{
	ASSERT(ds->ds_is_snapshot);
	return (dsl_dataset_phys(ds)->ds_num_children - 1);
	}

	uint64_t
	dsl_get_inconsistent(dsl_dataset_t *ds)
	{
	return ((dsl_dataset_phys(ds)->ds_flags & DS_FLAG_INCONSISTENT) ?
	1 : 0);
	}

	uint64_t
	dsl_get_redacted(dsl_dataset_t *ds)
	{
	return (dsl_dataset_feature_is_active(ds,
	SPA_FEATURE_REDACTED_DATASETS));
	}

	uint64_t
	dsl_get_available(dsl_dataset_t *ds)
	{
	uint64_t refdbytes = dsl_get_referenced(ds);
	uint64_t availbytes = dsl_dir_space_available(ds->ds_dir,
	NULL, 0, TRUE);
	if (ds->ds_reserved > dsl_dataset_phys(ds)->ds_unique_bytes) {
	availbytes +=
	ds->ds_reserved - dsl_dataset_phys(ds)->ds_unique_bytes;
	}
	if (ds->ds_quota != 0) {
	/*
	* Adjust available bytes according to refquota
	*/
	if (refdbytes < ds->ds_quota) {
	availbytes = MIN(availbytes,
	ds->ds_quota - refdbytes);
	} else {
	availbytes = 0;
	}
	}
	return (availbytes);
	}

	int
	dsl_get_written(dsl_dataset_t ds, uint64_t written)
	{
	dsl_pool_t *dp = ds->ds_dir->dd_pool;
	dsl_dataset_t *prev;
	int err = dsl_dataset_hold_obj(dp,
	dsl_dataset_phys(ds)->ds_prev_snap_obj, FTAG, &prev);
	if (err == 0) {
	uint64_t comp, uncomp;
	err = dsl_dataset_space_written(prev, ds, written,
	&comp, &uncomp);
	dsl_dataset_rele(prev, FTAG);
	}
	return (err);
	}

	/*
	* 'snap' should be a buffer of size ZFS_MAX_DATASET_NAME_LEN.
	*/
	int
	dsl_get_prev_snap(dsl_dataset_t ds, char snap)
	{
	dsl_pool_t *dp = ds->ds_dir->dd_pool;
	if (ds->ds_prev != NULL && ds->ds_prev != dp->dp_origin_snap) {
	dsl_dataset_name(ds->ds_prev, snap);
	return (0);
	} else {
	return (SET_ERROR(ENOENT));
	}
	}

	void
	dsl_get_redact_snaps(dsl_dataset_t ds, nvlist_t propval)
	{
	uint64_t nsnaps;
	uint64_t *snaps;
	if (dsl_dataset_get_uint64_array_feature(ds,
	SPA_FEATURE_REDACTED_DATASETS, &nsnaps, &snaps)) {
	fnvlist_add_uint64_array(propval, ZPROP_VALUE, snaps,
	nsnaps);
	}
	}

	/*
	* Returns the mountpoint property and source for the given dataset in the value
	* and source buffers. The value buffer must be at least as large as MAXPATHLEN
	* and the source buffer as least as large a ZFS_MAX_DATASET_NAME_LEN.
	* Returns 0 on success and an error on failure.
	*/
	int
	dsl_get_mountpoint(dsl_dataset_t ds, const char dsname, char *value,
	char *source)
	{
	int error;
	dsl_pool_t *dp = ds->ds_dir->dd_pool;

	/* Retrieve the mountpoint value stored in the zap object */
	error = dsl_prop_get_ds(ds, zfs_prop_to_name(ZFS_PROP_MOUNTPOINT), 1,
	ZAP_MAXVALUELEN, value, source);
	if (error != 0) {
	return (error);
	}

	/*
	* Process the dsname and source to find the full mountpoint string.
	* Can be skipped for 'legacy' or 'none'.
	*/
	if (value[0] == '/') {
	char *buf = kmem_alloc(ZAP_MAXVALUELEN, KM_SLEEP);
	char *root = buf;
	const char *relpath;

	/*
	* If we inherit the mountpoint, even from a dataset
	* with a received value, the source will be the path of
	* the dataset we inherit from. If source is
	* ZPROP_SOURCE_VAL_RECVD, the received value is not
	* inherited.
	*/
	if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) {
	relpath = "";
	} else {
	ASSERT0(strncmp(dsname, source, strlen(source)));
	relpath = dsname + strlen(source);
	if (relpath[0] == '/')
	relpath++;
	}

	spa_altroot(dp->dp_spa, root, ZAP_MAXVALUELEN);

	/*
	* Special case an alternate root of '/'. This will
	* avoid having multiple leading slashes in the
	* mountpoint path.
	*/
	if (strcmp(root, "/") == 0)
	root++;

	/*
	* If the mountpoint is '/' then skip over this
	* if we are obtaining either an alternate root or
	* an inherited mountpoint.
	*/
	char *mnt = value;
	if (value[1] == '\0' && (root[0] != '\0' \|\|
	relpath[0] != '\0'))
	mnt = value + 1;

	if (relpath[0] == '\0') {
	(void) snprintf(value, ZAP_MAXVALUELEN, "%s%s",
	root, mnt);
	} else {
	(void) snprintf(value, ZAP_MAXVALUELEN, "%s%s%s%s",
	root, mnt, relpath[0] == '@' ? "" : "/",
	relpath);
	}
	kmem_free(buf, ZAP_MAXVALUELEN);
	}

	return (0);
	}

	void
	dsl_dataset_stats(dsl_dataset_t ds, nvlist_t nv)
	{
	dsl_pool_t *dp = ds->ds_dir->dd_pool;

	ASSERT(dsl_pool_config_held(dp));

	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_REFRATIO,
	dsl_get_refratio(ds));
	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_LOGICALREFERENCED,
	dsl_get_logicalreferenced(ds));
	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_COMPRESSRATIO,
	dsl_get_compressratio(ds));
	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USED,
	dsl_get_used(ds));

	if (ds->ds_is_snapshot) {
	get_clones_stat(ds, nv);
	} else {
	char buf[ZFS_MAX_DATASET_NAME_LEN];
	if (dsl_get_prev_snap(ds, buf) == 0)
	dsl_prop_nvlist_add_string(nv, ZFS_PROP_PREV_SNAP,
	buf);
	dsl_dir_stats(ds->ds_dir, nv);
	}

	nvlist_t *propval = fnvlist_alloc();
	dsl_get_redact_snaps(ds, propval);
	fnvlist_add_nvlist(nv, zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS),
	propval);
	nvlist_free(propval);

	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_AVAILABLE,
	dsl_get_available(ds));
	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_REFERENCED,
	dsl_get_referenced(ds));
	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_CREATION,
	dsl_get_creation(ds));
	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_CREATETXG,
	dsl_get_creationtxg(ds));
	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_REFQUOTA,
	dsl_get_refquota(ds));
	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_REFRESERVATION,
	dsl_get_refreservation(ds));
	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_GUID,
	dsl_get_guid(ds));
	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_UNIQUE,
	dsl_get_unique(ds));
	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_OBJSETID,
	dsl_get_objsetid(ds));
	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USERREFS,
	dsl_get_userrefs(ds));
	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_DEFER_DESTROY,
	dsl_get_defer_destroy(ds));
	dsl_dataset_crypt_stats(ds, nv);

	if (dsl_dataset_phys(ds)->ds_prev_snap_obj != 0) {
	uint64_t written;
	if (dsl_get_written(ds, &written) == 0) {
	dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_WRITTEN,
	written);
	}
	}

	if (!dsl_dataset_is_snapshot(ds)) {
	/*
	* A failed "newfs" (e.g. full) resumable receive leaves
	* the stats set on this dataset. Check here for the prop.
	*/
	get_receive_resume_stats(ds, nv);

	/*
	* A failed incremental resumable receive leaves the
	* stats set on our child named "%recv". Check the child
	* for the prop.
	*/
	/* 6 extra bytes for /%recv */
	char recvname[ZFS_MAX_DATASET_NAME_LEN + 6];
	dsl_dataset_t *recv_ds;
	dsl_dataset_name(ds, recvname);
	if (strlcat(recvname, "/", sizeof (recvname)) <
	sizeof (recvname) &&
	strlcat(recvname, recv_clone_name, sizeof (recvname)) <
	sizeof (recvname) &&
	dsl_dataset_hold(dp, recvname, FTAG, &recv_ds) == 0) {
	get_receive_resume_stats(recv_ds, nv);
	dsl_dataset_rele(recv_ds, FTAG);
	}
	}
	}

	void
	dsl_dataset_fast_stat(dsl_dataset_t ds, dmu_objset_stats_t stat)
	{
	dsl_pool_t *dp __maybe_unused = ds->ds_dir->dd_pool;
	ASSERT(dsl_pool_config_held(dp));

	stat->dds_creation_txg = dsl_get_creationtxg(ds);
	stat->dds_inconsistent = dsl_get_inconsistent(ds);
	stat->dds_guid = dsl_get_guid(ds);
	stat->dds_redacted = dsl_get_redacted(ds);
	stat->dds_origin[0] = '\0';
	if (ds->ds_is_snapshot) {
	stat->dds_is_snapshot = B_TRUE;
	stat->dds_num_clones = dsl_get_numclones(ds);
	} else {
	stat->dds_is_snapshot = B_FALSE;
	stat->dds_num_clones = 0;

	if (dsl_dir_is_clone(ds->ds_dir)) {
	dsl_dir_get_origin(ds->ds_dir, stat->dds_origin);
	}
	}
	}

	uint64_t
	dsl_dataset_fsid_guid(dsl_dataset_t *ds)
	{
	return (ds->ds_fsid_guid);
	}

	void
	dsl_dataset_space(dsl_dataset_t *ds,
	uint64_t refdbytesp, uint64_t availbytesp,
	uint64_t usedobjsp, uint64_t availobjsp)
	{
	*refdbytesp = dsl_dataset_phys(ds)->ds_referenced_bytes;
	*availbytesp = dsl_dir_space_available(ds->ds_dir, NULL, 0, TRUE);
	if (ds->ds_reserved > dsl_dataset_phys(ds)->ds_unique_bytes)
	*availbytesp +=
	ds->ds_reserved - dsl_dataset_phys(ds)->ds_unique_bytes;
	if (ds->ds_quota != 0) {
	/*
	* Adjust available bytes according to refquota
	*/
	if (*refdbytesp < ds->ds_quota)
	availbytesp = MIN(availbytesp,
	ds->ds_quota - *refdbytesp);
	else
	*availbytesp = 0;
	}
	rrw_enter(&ds->ds_bp_rwlock, RW_READER, FTAG);
	*usedobjsp = BP_GET_FILL(&dsl_dataset_phys(ds)->ds_bp);
	rrw_exit(&ds->ds_bp_rwlock, FTAG);
	availobjsp = DN_MAX_OBJECT - usedobjsp;
	}

	boolean_t
	dsl_dataset_modified_since_snap(dsl_dataset_t ds, dsl_dataset_t snap)
	{
	dsl_pool_t *dp __maybe_unused = ds->ds_dir->dd_pool;
	uint64_t birth;

	ASSERT(dsl_pool_config_held(dp));
	if (snap == NULL)
	return (B_FALSE);
	rrw_enter(&ds->ds_bp_rwlock, RW_READER, FTAG);
	birth = dsl_dataset_get_blkptr(ds)->blk_birth;
	rrw_exit(&ds->ds_bp_rwlock, FTAG);
	if (birth > dsl_dataset_phys(snap)->ds_creation_txg) {
	objset_t os, os_snap;
	/*
	* It may be that only the ZIL differs, because it was
	* reset in the head. Don't count that as being
	* modified.
	*/
	if (dmu_objset_from_ds(ds, &os) != 0)
	return (B_TRUE);
	if (dmu_objset_from_ds(snap, &os_snap) != 0)
	return (B_TRUE);
	return (bcmp(&os->os_phys->os_meta_dnode,
	&os_snap->os_phys->os_meta_dnode,
	sizeof (os->os_phys->os_meta_dnode)) != 0);
	}
	return (B_FALSE);
	}

	typedef struct dsl_dataset_rename_snapshot_arg {
	const char *ddrsa_fsname;
	const char *ddrsa_oldsnapname;
	const char *ddrsa_newsnapname;
	boolean_t ddrsa_recursive;
	dmu_tx_t *ddrsa_tx;
	} dsl_dataset_rename_snapshot_arg_t;

	/* ARGSUSED */
	static int
	dsl_dataset_rename_snapshot_check_impl(dsl_pool_t *dp,
	dsl_dataset_t hds, void arg)
	{
	dsl_dataset_rename_snapshot_arg_t *ddrsa = arg;
	int error;
	uint64_t val;

	error = dsl_dataset_snap_lookup(hds, ddrsa->ddrsa_oldsnapname, &val);
	if (error != 0) {
	/* ignore nonexistent snapshots */
	return (error == ENOENT ? 0 : error);
	}

	/* new name should not exist */
	error = dsl_dataset_snap_lookup(hds, ddrsa->ddrsa_newsnapname, &val);
	if (error == 0)
	error = SET_ERROR(EEXIST);
	else if (error == ENOENT)
	error = 0;

	/* dataset name + 1 for the "@" + the new snapshot name must fit */
	if (dsl_dir_namelen(hds->ds_dir) + 1 +
	strlen(ddrsa->ddrsa_newsnapname) >= ZFS_MAX_DATASET_NAME_LEN)
	error = SET_ERROR(ENAMETOOLONG);

	return (error);
	}

	static int
	dsl_dataset_rename_snapshot_check(void arg, dmu_tx_t tx)
	{
	dsl_dataset_rename_snapshot_arg_t *ddrsa = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	dsl_dataset_t *hds;
	int error;

	error = dsl_dataset_hold(dp, ddrsa->ddrsa_fsname, FTAG, &hds);
	if (error != 0)
	return (error);

	if (ddrsa->ddrsa_recursive) {
	error = dmu_objset_find_dp(dp, hds->ds_dir->dd_object,
	dsl_dataset_rename_snapshot_check_impl, ddrsa,
	DS_FIND_CHILDREN);
	} else {
	error = dsl_dataset_rename_snapshot_check_impl(dp, hds, ddrsa);
	}
	dsl_dataset_rele(hds, FTAG);
	return (error);
	}

	static int
	dsl_dataset_rename_snapshot_sync_impl(dsl_pool_t *dp,
	dsl_dataset_t hds, void arg)
	{
	dsl_dataset_rename_snapshot_arg_t *ddrsa = arg;
	dsl_dataset_t *ds;
	uint64_t val;
	dmu_tx_t *tx = ddrsa->ddrsa_tx;
	int error;

	error = dsl_dataset_snap_lookup(hds, ddrsa->ddrsa_oldsnapname, &val);
	ASSERT(error == 0 \|\| error == ENOENT);
	if (error == ENOENT) {
	/* ignore nonexistent snapshots */
	return (0);
	}

	VERIFY0(dsl_dataset_hold_obj(dp, val, FTAG, &ds));

	/* log before we change the name */
	spa_history_log_internal_ds(ds, "rename", tx,
	"-> @%s", ddrsa->ddrsa_newsnapname);

	VERIFY0(dsl_dataset_snap_remove(hds, ddrsa->ddrsa_oldsnapname, tx,
	B_FALSE));
	mutex_enter(&ds->ds_lock);
	(void) strlcpy(ds->ds_snapname, ddrsa->ddrsa_newsnapname,
	sizeof (ds->ds_snapname));
	mutex_exit(&ds->ds_lock);
	VERIFY0(zap_add(dp->dp_meta_objset,
	dsl_dataset_phys(hds)->ds_snapnames_zapobj,
	ds->ds_snapname, 8, 1, &ds->ds_object, tx));
	zvol_rename_minors(dp->dp_spa, ddrsa->ddrsa_oldsnapname,
	ddrsa->ddrsa_newsnapname, B_TRUE);

	dsl_dataset_rele(ds, FTAG);
	return (0);
	}

	static void
	dsl_dataset_rename_snapshot_sync(void arg, dmu_tx_t tx)
	{
	dsl_dataset_rename_snapshot_arg_t *ddrsa = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	dsl_dataset_t *hds = NULL;

	VERIFY0(dsl_dataset_hold(dp, ddrsa->ddrsa_fsname, FTAG, &hds));
	ddrsa->ddrsa_tx = tx;
	if (ddrsa->ddrsa_recursive) {
	VERIFY0(dmu_objset_find_dp(dp, hds->ds_dir->dd_object,
	dsl_dataset_rename_snapshot_sync_impl, ddrsa,
	DS_FIND_CHILDREN));
	} else {
	VERIFY0(dsl_dataset_rename_snapshot_sync_impl(dp, hds, ddrsa));
	}
	dsl_dataset_rele(hds, FTAG);
	}

	int
	dsl_dataset_rename_snapshot(const char *fsname,
	const char oldsnapname, const char newsnapname, boolean_t recursive)
	{
	dsl_dataset_rename_snapshot_arg_t ddrsa;

	ddrsa.ddrsa_fsname = fsname;
	ddrsa.ddrsa_oldsnapname = oldsnapname;
	ddrsa.ddrsa_newsnapname = newsnapname;
	ddrsa.ddrsa_recursive = recursive;

	return (dsl_sync_task(fsname, dsl_dataset_rename_snapshot_check,
	dsl_dataset_rename_snapshot_sync, &ddrsa,
	1, ZFS_SPACE_CHECK_RESERVED));
	}

	/*
	* If we're doing an ownership handoff, we need to make sure that there is
	* only one long hold on the dataset. We're not allowed to change anything here
	* so we don't permanently release the long hold or regular hold here. We want
	* to do this only when syncing to avoid the dataset unexpectedly going away
	* when we release the long hold.
	*/
	static int
	dsl_dataset_handoff_check(dsl_dataset_t ds, void owner, dmu_tx_t *tx)
	{
	boolean_t held = B_FALSE;

	if (!dmu_tx_is_syncing(tx))
	return (0);

	dsl_dir_t *dd = ds->ds_dir;
	mutex_enter(&dd->dd_activity_lock);
	uint64_t holds = zfs_refcount_count(&ds->ds_longholds) -
	(owner != NULL ? 1 : 0);
	/*
	* The value of dd_activity_waiters can chance as soon as we drop the
	* lock, but we're fine with that; new waiters coming in or old
	* waiters leaving doesn't cause problems, since we're going to cancel
	* waiters later anyway. The goal of this check is to verify that no
	* non-waiters have long-holds, and all new long-holds will be
	* prevented because we're holding the pool config as writer.
	*/
	if (holds != dd->dd_activity_waiters)
	held = B_TRUE;
	mutex_exit(&dd->dd_activity_lock);

	if (held)
	return (SET_ERROR(EBUSY));

	return (0);
	}

	int
	dsl_dataset_rollback_check(void arg, dmu_tx_t tx)
	{
	dsl_dataset_rollback_arg_t *ddra = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	dsl_dataset_t *ds;
	int64_t unused_refres_delta;
	int error;

	error = dsl_dataset_hold(dp, ddra->ddra_fsname, FTAG, &ds);
	if (error != 0)
	return (error);

	/* must not be a snapshot */
	if (ds->ds_is_snapshot) {
	dsl_dataset_rele(ds, FTAG);
	return (SET_ERROR(EINVAL));
	}

	/* must have a most recent snapshot */
	if (dsl_dataset_phys(ds)->ds_prev_snap_txg < TXG_INITIAL) {
	dsl_dataset_rele(ds, FTAG);
	return (SET_ERROR(ESRCH));
	}

	/*
	* No rollback to a snapshot created in the current txg, because
	* the rollback may dirty the dataset and create blocks that are
	* not reachable from the rootbp while having a birth txg that
	* falls into the snapshot's range.
	*/
	if (dmu_tx_is_syncing(tx) &&
	dsl_dataset_phys(ds)->ds_prev_snap_txg >= tx->tx_txg) {
	dsl_dataset_rele(ds, FTAG);
	return (SET_ERROR(EAGAIN));
	}

	/*
	* If the expected target snapshot is specified, then check that
	* the latest snapshot is it.
	*/
	if (ddra->ddra_tosnap != NULL) {
	dsl_dataset_t *snapds;

	/* Check if the target snapshot exists at all. */
	error = dsl_dataset_hold(dp, ddra->ddra_tosnap, FTAG, &snapds);
	if (error != 0) {
	/*
	* ESRCH is used to signal that the target snapshot does
	* not exist, while ENOENT is used to report that
	* the rolled back dataset does not exist.
	* ESRCH is also used to cover other cases where the
	* target snapshot is not related to the dataset being
	* rolled back such as being in a different pool.
	*/
	if (error == ENOENT \|\| error == EXDEV)
	error = SET_ERROR(ESRCH);
	dsl_dataset_rele(ds, FTAG);
	return (error);
	}
	ASSERT(snapds->ds_is_snapshot);

	/* Check if the snapshot is the latest snapshot indeed. */
	if (snapds != ds->ds_prev) {
	/*
	* Distinguish between the case where the only problem
	* is intervening snapshots (EEXIST) vs the snapshot
	* not being a valid target for rollback (ESRCH).
	*/
	if (snapds->ds_dir == ds->ds_dir \|\|
	(dsl_dir_is_clone(ds->ds_dir) &&
	dsl_dir_phys(ds->ds_dir)->dd_origin_obj ==
	snapds->ds_object)) {
	error = SET_ERROR(EEXIST);
	} else {
	error = SET_ERROR(ESRCH);
	}
	dsl_dataset_rele(snapds, FTAG);
	dsl_dataset_rele(ds, FTAG);
	return (error);
	}
	dsl_dataset_rele(snapds, FTAG);
	}

	/* must not have any bookmarks after the most recent snapshot */
	if (dsl_bookmark_latest_txg(ds) >
	dsl_dataset_phys(ds)->ds_prev_snap_txg) {
	dsl_dataset_rele(ds, FTAG);
	return (SET_ERROR(EEXIST));
	}

	error = dsl_dataset_handoff_check(ds, ddra->ddra_owner, tx);
	if (error != 0) {
	dsl_dataset_rele(ds, FTAG);
	return (error);
	}

	/*
	* Check if the snap we are rolling back to uses more than
	* the refquota.
	*/
	if (ds->ds_quota != 0 &&
	dsl_dataset_phys(ds->ds_prev)->ds_referenced_bytes > ds->ds_quota) {
	dsl_dataset_rele(ds, FTAG);
	return (SET_ERROR(EDQUOT));
	}

	/*
	* When we do the clone swap, we will temporarily use more space
	* due to the refreservation (the head will no longer have any
	* unique space, so the entire amount of the refreservation will need
	* to be free). We will immediately destroy the clone, freeing
	* this space, but the freeing happens over many txg's.
	*/
	unused_refres_delta = (int64_t)MIN(ds->ds_reserved,
	dsl_dataset_phys(ds)->ds_unique_bytes);

	if (unused_refres_delta > 0 &&
	unused_refres_delta >
	dsl_dir_space_available(ds->ds_dir, NULL, 0, TRUE)) {
	dsl_dataset_rele(ds, FTAG);
	return (SET_ERROR(ENOSPC));
	}

	dsl_dataset_rele(ds, FTAG);
	return (0);
	}

	void
	dsl_dataset_rollback_sync(void arg, dmu_tx_t tx)
	{
	dsl_dataset_rollback_arg_t *ddra = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	dsl_dataset_t ds, clone;
	uint64_t cloneobj;
	char namebuf[ZFS_MAX_DATASET_NAME_LEN];

	VERIFY0(dsl_dataset_hold(dp, ddra->ddra_fsname, FTAG, &ds));

	dsl_dataset_name(ds->ds_prev, namebuf);
	fnvlist_add_string(ddra->ddra_result, "target", namebuf);

	cloneobj = dsl_dataset_create_sync(ds->ds_dir, "%rollback",
	ds->ds_prev, DS_CREATE_FLAG_NODIRTY, kcred, NULL, tx);

	VERIFY0(dsl_dataset_hold_obj(dp, cloneobj, FTAG, &clone));

	dsl_dataset_clone_swap_sync_impl(clone, ds, tx);
	dsl_dataset_zero_zil(ds, tx);

	dsl_destroy_head_sync_impl(clone, tx);

	dsl_dataset_rele(clone, FTAG);
	dsl_dataset_rele(ds, FTAG);
	}

	/*
	* Rolls back the given filesystem or volume to the most recent snapshot.
	* The name of the most recent snapshot will be returned under key "target"
	* in the result nvlist.
	*
	* If owner != NULL:
	* - The existing dataset MUST be owned by the specified owner at entry
	* - Upon return, dataset will still be held by the same owner, whether we
	* succeed or not.
	*
	* This mode is required any time the existing filesystem is mounted. See
	* notes above zfs_suspend_fs() for further details.
	*/
	int
	dsl_dataset_rollback(const char fsname, const char tosnap, void *owner,
	nvlist_t *result)
	{
	dsl_dataset_rollback_arg_t ddra;

	ddra.ddra_fsname = fsname;
	ddra.ddra_tosnap = tosnap;
	ddra.ddra_owner = owner;
	ddra.ddra_result = result;

	return (dsl_sync_task(fsname, dsl_dataset_rollback_check,
	dsl_dataset_rollback_sync, &ddra,
	1, ZFS_SPACE_CHECK_RESERVED));
	}

	struct promotenode {
	list_node_t link;
	dsl_dataset_t *ds;
	};

	static int snaplist_space(list_t l, uint64_t mintxg, uint64_t spacep);
	static int promote_hold(dsl_dataset_promote_arg_t ddpa, dsl_pool_t dp,
	void *tag);
	static void promote_rele(dsl_dataset_promote_arg_t ddpa, void tag);

	int
	dsl_dataset_promote_check(void arg, dmu_tx_t tx)
	{
	dsl_dataset_promote_arg_t *ddpa = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	dsl_dataset_t *hds;
	struct promotenode *snap;
	dsl_dataset_t origin_ds, origin_head;
	int err;
	uint64_t unused;
	uint64_t ss_mv_cnt;
	size_t max_snap_len;
	boolean_t conflicting_snaps;

	err = promote_hold(ddpa, dp, FTAG);
	if (err != 0)
	return (err);

	hds = ddpa->ddpa_clone;
	max_snap_len = MAXNAMELEN - strlen(ddpa->ddpa_clonename) - 1;

	if (dsl_dataset_phys(hds)->ds_flags & DS_FLAG_NOPROMOTE) {
	promote_rele(ddpa, FTAG);
	return (SET_ERROR(EXDEV));
	}

	snap = list_head(&ddpa->shared_snaps);
	origin_head = snap->ds;
	if (snap == NULL) {
	err = SET_ERROR(ENOENT);
	goto out;
	}
	origin_ds = snap->ds;

	/*
	* Encrypted clones share a DSL Crypto Key with their origin's dsl dir.
	* When doing a promote we must make sure the encryption root for
	* both the target and the target's origin does not change to avoid
	* needing to rewrap encryption keys
	*/
	err = dsl_dataset_promote_crypt_check(hds->ds_dir, origin_ds->ds_dir);
	if (err != 0)
	goto out;

	/*
	* Compute and check the amount of space to transfer. Since this is
	* so expensive, don't do the preliminary check.
	*/
	if (!dmu_tx_is_syncing(tx)) {
	promote_rele(ddpa, FTAG);
	return (0);
	}

	/* compute origin's new unique space */
	snap = list_tail(&ddpa->clone_snaps);
	ASSERT(snap != NULL);
	ASSERT3U(dsl_dataset_phys(snap->ds)->ds_prev_snap_obj, ==,
	origin_ds->ds_object);
	dsl_deadlist_space_range(&snap->ds->ds_deadlist,
	dsl_dataset_phys(origin_ds)->ds_prev_snap_txg, UINT64_MAX,
	&ddpa->unique, &unused, &unused);

	/*
	* Walk the snapshots that we are moving
	*
	* Compute space to transfer. Consider the incremental changes
	* to used by each snapshot:
	* (my used) = (prev's used) + (blocks born) - (blocks killed)
	* So each snapshot gave birth to:
	* (blocks born) = (my used) - (prev's used) + (blocks killed)
	* So a sequence would look like:
	* (uN - u(N-1) + kN) + ... + (u1 - u0 + k1) + (u0 - 0 + k0)
	* Which simplifies to:
	* uN + kN + kN-1 + ... + k1 + k0
	* Note however, if we stop before we reach the ORIGIN we get:
	* uN + kN + kN-1 + ... + kM - uM-1
	*/
	conflicting_snaps = B_FALSE;
	ss_mv_cnt = 0;
	ddpa->used = dsl_dataset_phys(origin_ds)->ds_referenced_bytes;
	ddpa->comp = dsl_dataset_phys(origin_ds)->ds_compressed_bytes;
	ddpa->uncomp = dsl_dataset_phys(origin_ds)->ds_uncompressed_bytes;
	for (snap = list_head(&ddpa->shared_snaps); snap;
	snap = list_next(&ddpa->shared_snaps, snap)) {
	uint64_t val, dlused, dlcomp, dluncomp;
	dsl_dataset_t *ds = snap->ds;

	ss_mv_cnt++;

	/*
	* If there are long holds, we won't be able to evict
	* the objset.
	*/
	if (dsl_dataset_long_held(ds)) {
	err = SET_ERROR(EBUSY);
	goto out;
	}

	/* Check that the snapshot name does not conflict */
	VERIFY0(dsl_dataset_get_snapname(ds));
	if (strlen(ds->ds_snapname) >= max_snap_len) {
	err = SET_ERROR(ENAMETOOLONG);
	goto out;
	}
	err = dsl_dataset_snap_lookup(hds, ds->ds_snapname, &val);
	if (err == 0) {
	fnvlist_add_boolean(ddpa->err_ds,
	snap->ds->ds_snapname);
	conflicting_snaps = B_TRUE;
	} else if (err != ENOENT) {
	goto out;
	}

	/* The very first snapshot does not have a deadlist */
	if (dsl_dataset_phys(ds)->ds_prev_snap_obj == 0)
	continue;

	dsl_deadlist_space(&ds->ds_deadlist,
	&dlused, &dlcomp, &dluncomp);
	ddpa->used += dlused;
	ddpa->comp += dlcomp;
	ddpa->uncomp += dluncomp;
	}

	/*
	* Check that bookmarks that are being transferred don't have
	* name conflicts.
	*/
	for (dsl_bookmark_node_t *dbn = avl_first(&origin_head->ds_bookmarks);
	dbn != NULL && dbn->dbn_phys.zbm_creation_txg <=
	dsl_dataset_phys(origin_ds)->ds_creation_txg;
	dbn = AVL_NEXT(&origin_head->ds_bookmarks, dbn)) {
	if (strlen(dbn->dbn_name) >= max_snap_len) {
	err = SET_ERROR(ENAMETOOLONG);
	goto out;
	}
	zfs_bookmark_phys_t bm;
	err = dsl_bookmark_lookup_impl(ddpa->ddpa_clone,
	dbn->dbn_name, &bm);

	if (err == 0) {
	fnvlist_add_boolean(ddpa->err_ds, dbn->dbn_name);
	conflicting_snaps = B_TRUE;
	} else if (err == ESRCH) {
	err = 0;
	} else if (err != 0) {
	goto out;
	}
	}

	/*
	* In order to return the full list of conflicting snapshots, we check
	* whether there was a conflict after traversing all of them.
	*/
	if (conflicting_snaps) {
	err = SET_ERROR(EEXIST);
	goto out;
	}

	/*
	* If we are a clone of a clone then we never reached ORIGIN,
	* so we need to subtract out the clone origin's used space.
	*/
	if (ddpa->origin_origin) {
	ddpa->used -=
	dsl_dataset_phys(ddpa->origin_origin)->ds_referenced_bytes;
	ddpa->comp -=
	dsl_dataset_phys(ddpa->origin_origin)->ds_compressed_bytes;
	ddpa->uncomp -=
	dsl_dataset_phys(ddpa->origin_origin)->
	ds_uncompressed_bytes;
	}

	/* Check that there is enough space and limit headroom here */
	err = dsl_dir_transfer_possible(origin_ds->ds_dir, hds->ds_dir,
	0, ss_mv_cnt, ddpa->used, ddpa->cr, ddpa->proc);
	if (err != 0)
	goto out;

	/*
	* Compute the amounts of space that will be used by snapshots
	* after the promotion (for both origin and clone). For each,
	* it is the amount of space that will be on all of their
	* deadlists (that was not born before their new origin).
	*/
	if (dsl_dir_phys(hds->ds_dir)->dd_flags & DD_FLAG_USED_BREAKDOWN) {
	uint64_t space;

	/*
	* Note, typically this will not be a clone of a clone,
	* so dd_origin_txg will be < TXG_INITIAL, so
	* these snaplist_space() -> dsl_deadlist_space_range()
	* calls will be fast because they do not have to
	* iterate over all bps.
	*/
	snap = list_head(&ddpa->origin_snaps);
	if (snap == NULL) {
	err = SET_ERROR(ENOENT);
	goto out;
	}
	err = snaplist_space(&ddpa->shared_snaps,
	snap->ds->ds_dir->dd_origin_txg, &ddpa->cloneusedsnap);
	if (err != 0)
	goto out;

	err = snaplist_space(&ddpa->clone_snaps,
	snap->ds->ds_dir->dd_origin_txg, &space);
	if (err != 0)
	goto out;
	ddpa->cloneusedsnap += space;
	}
	if (dsl_dir_phys(origin_ds->ds_dir)->dd_flags &
	DD_FLAG_USED_BREAKDOWN) {
	err = snaplist_space(&ddpa->origin_snaps,
	dsl_dataset_phys(origin_ds)->ds_creation_txg,
	&ddpa->originusedsnap);
	if (err != 0)
	goto out;
	}

	out:
	promote_rele(ddpa, FTAG);
	return (err);
	}

	void
	dsl_dataset_promote_sync(void arg, dmu_tx_t tx)
	{
	dsl_dataset_promote_arg_t *ddpa = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	dsl_dataset_t *hds;
	struct promotenode *snap;
	dsl_dataset_t *origin_ds;
	dsl_dataset_t *origin_head;
	dsl_dir_t *dd;
	dsl_dir_t *odd = NULL;
	uint64_t oldnext_obj;
	int64_t delta;

	ASSERT(nvlist_empty(ddpa->err_ds));

	VERIFY0(promote_hold(ddpa, dp, FTAG));
	hds = ddpa->ddpa_clone;

	ASSERT0(dsl_dataset_phys(hds)->ds_flags & DS_FLAG_NOPROMOTE);

	snap = list_head(&ddpa->shared_snaps);
	origin_ds = snap->ds;
	dd = hds->ds_dir;

	snap = list_head(&ddpa->origin_snaps);
	origin_head = snap->ds;

	/*
	* We need to explicitly open odd, since origin_ds's dd will be
	* changing.
	*/
	VERIFY0(dsl_dir_hold_obj(dp, origin_ds->ds_dir->dd_object,
	NULL, FTAG, &odd));

	dsl_dataset_promote_crypt_sync(hds->ds_dir, odd, tx);

	/* change origin's next snap */
	dmu_buf_will_dirty(origin_ds->ds_dbuf, tx);
	oldnext_obj = dsl_dataset_phys(origin_ds)->ds_next_snap_obj;
	snap = list_tail(&ddpa->clone_snaps);
	ASSERT3U(dsl_dataset_phys(snap->ds)->ds_prev_snap_obj, ==,
	origin_ds->ds_object);
	dsl_dataset_phys(origin_ds)->ds_next_snap_obj = snap->ds->ds_object;

	/* change the origin's next clone */
	if (dsl_dataset_phys(origin_ds)->ds_next_clones_obj) {
	dsl_dataset_remove_from_next_clones(origin_ds,
	snap->ds->ds_object, tx);
	VERIFY0(zap_add_int(dp->dp_meta_objset,
	dsl_dataset_phys(origin_ds)->ds_next_clones_obj,
	oldnext_obj, tx));
	}

	/* change origin */
	dmu_buf_will_dirty(dd->dd_dbuf, tx);
	ASSERT3U(dsl_dir_phys(dd)->dd_origin_obj, ==, origin_ds->ds_object);
	dsl_dir_phys(dd)->dd_origin_obj = dsl_dir_phys(odd)->dd_origin_obj;
	dd->dd_origin_txg = origin_head->ds_dir->dd_origin_txg;
	dmu_buf_will_dirty(odd->dd_dbuf, tx);
	dsl_dir_phys(odd)->dd_origin_obj = origin_ds->ds_object;
	origin_head->ds_dir->dd_origin_txg =
	dsl_dataset_phys(origin_ds)->ds_creation_txg;

	/* change dd_clone entries */
	if (spa_version(dp->dp_spa) >= SPA_VERSION_DIR_CLONES) {
	VERIFY0(zap_remove_int(dp->dp_meta_objset,
	dsl_dir_phys(odd)->dd_clones, hds->ds_object, tx));
	VERIFY0(zap_add_int(dp->dp_meta_objset,
	dsl_dir_phys(ddpa->origin_origin->ds_dir)->dd_clones,
	hds->ds_object, tx));

	VERIFY0(zap_remove_int(dp->dp_meta_objset,
	dsl_dir_phys(ddpa->origin_origin->ds_dir)->dd_clones,
	origin_head->ds_object, tx));
	if (dsl_dir_phys(dd)->dd_clones == 0) {
	dsl_dir_phys(dd)->dd_clones =
	zap_create(dp->dp_meta_objset, DMU_OT_DSL_CLONES,
	DMU_OT_NONE, 0, tx);
	}
	VERIFY0(zap_add_int(dp->dp_meta_objset,
	dsl_dir_phys(dd)->dd_clones, origin_head->ds_object, tx));
	}

	/*
	* Move bookmarks to this dir.
	*/
	dsl_bookmark_node_t *dbn_next;
	for (dsl_bookmark_node_t *dbn = avl_first(&origin_head->ds_bookmarks);
	dbn != NULL && dbn->dbn_phys.zbm_creation_txg <=
	dsl_dataset_phys(origin_ds)->ds_creation_txg;
	dbn = dbn_next) {
	dbn_next = AVL_NEXT(&origin_head->ds_bookmarks, dbn);

	avl_remove(&origin_head->ds_bookmarks, dbn);
	VERIFY0(zap_remove(dp->dp_meta_objset,
	origin_head->ds_bookmarks_obj, dbn->dbn_name, tx));

	dsl_bookmark_node_add(hds, dbn, tx);
	}

	dsl_bookmark_next_changed(hds, origin_ds, tx);

	/* move snapshots to this dir */
	for (snap = list_head(&ddpa->shared_snaps); snap;
	snap = list_next(&ddpa->shared_snaps, snap)) {
	dsl_dataset_t *ds = snap->ds;

	/*
	* Property callbacks are registered to a particular
	* dsl_dir. Since ours is changing, evict the objset
	* so that they will be unregistered from the old dsl_dir.
	*/
	if (ds->ds_objset) {
	dmu_objset_evict(ds->ds_objset);
	ds->ds_objset = NULL;
	}

	/* move snap name entry */
	VERIFY0(dsl_dataset_get_snapname(ds));
	VERIFY0(dsl_dataset_snap_remove(origin_head,
	ds->ds_snapname, tx, B_TRUE));
	VERIFY0(zap_add(dp->dp_meta_objset,
	dsl_dataset_phys(hds)->ds_snapnames_zapobj, ds->ds_snapname,
	8, 1, &ds->ds_object, tx));
	dsl_fs_ss_count_adjust(hds->ds_dir, 1,
	DD_FIELD_SNAPSHOT_COUNT, tx);

	/* change containing dsl_dir */
	dmu_buf_will_dirty(ds->ds_dbuf, tx);
	ASSERT3U(dsl_dataset_phys(ds)->ds_dir_obj, ==, odd->dd_object);
	dsl_dataset_phys(ds)->ds_dir_obj = dd->dd_object;
	ASSERT3P(ds->ds_dir, ==, odd);
	dsl_dir_rele(ds->ds_dir, ds);
	VERIFY0(dsl_dir_hold_obj(dp, dd->dd_object,
	NULL, ds, &ds->ds_dir));

	/* move any clone references */
	if (dsl_dataset_phys(ds)->ds_next_clones_obj &&
	spa_version(dp->dp_spa) >= SPA_VERSION_DIR_CLONES) {
	zap_cursor_t zc;
	zap_attribute_t za;

	for (zap_cursor_init(&zc, dp->dp_meta_objset,
	dsl_dataset_phys(ds)->ds_next_clones_obj);
	zap_cursor_retrieve(&zc, &za) == 0;
	zap_cursor_advance(&zc)) {
	dsl_dataset_t *cnds;
	uint64_t o;

	if (za.za_first_integer == oldnext_obj) {
	/*
	* We've already moved the
	* origin's reference.
	*/
	continue;
	}

	VERIFY0(dsl_dataset_hold_obj(dp,
	za.za_first_integer, FTAG, &cnds));
	o = dsl_dir_phys(cnds->ds_dir)->
	dd_head_dataset_obj;

	VERIFY0(zap_remove_int(dp->dp_meta_objset,
	dsl_dir_phys(odd)->dd_clones, o, tx));
	VERIFY0(zap_add_int(dp->dp_meta_objset,
	dsl_dir_phys(dd)->dd_clones, o, tx));
	dsl_dataset_rele(cnds, FTAG);
	}
	zap_cursor_fini(&zc);
	}

	ASSERT(!dsl_prop_hascb(ds));
	}

	/*
	* Change space accounting.
	* Note, pa->*usedsnap and dd_used_breakdown[SNAP] will either
	* both be valid, or both be 0 (resulting in delta == 0). This
	* is true for each of {clone,origin} independently.
	*/

	delta = ddpa->cloneusedsnap -
	dsl_dir_phys(dd)->dd_used_breakdown[DD_USED_SNAP];
	ASSERT3S(delta, >=, 0);
	ASSERT3U(ddpa->used, >=, delta);
	dsl_dir_diduse_space(dd, DD_USED_SNAP, delta, 0, 0, tx);
	dsl_dir_diduse_space(dd, DD_USED_HEAD,
	ddpa->used - delta, ddpa->comp, ddpa->uncomp, tx);

	delta = ddpa->originusedsnap -
	dsl_dir_phys(odd)->dd_used_breakdown[DD_USED_SNAP];
	ASSERT3S(delta, <=, 0);
	ASSERT3U(ddpa->used, >=, -delta);
	dsl_dir_diduse_space(odd, DD_USED_SNAP, delta, 0, 0, tx);
	dsl_dir_diduse_space(odd, DD_USED_HEAD,
	-ddpa->used - delta, -ddpa->comp, -ddpa->uncomp, tx);

	dsl_dataset_phys(origin_ds)->ds_unique_bytes = ddpa->unique;

	/*
	* Since livelists are specific to a clone's origin txg, they
	* are no longer accurate. Destroy the livelist from the clone being
	* promoted. If the origin dataset is a clone, destroy its livelist
	* as well.
	*/
	dsl_dir_remove_livelist(dd, tx, B_TRUE);
	dsl_dir_remove_livelist(odd, tx, B_TRUE);

	/* log history record */
	spa_history_log_internal_ds(hds, "promote", tx, " ");

	dsl_dir_rele(odd, FTAG);
	promote_rele(ddpa, FTAG);
	}

	/*
	* Make a list of dsl_dataset_t's for the snapshots between first_obj
	* (exclusive) and last_obj (inclusive). The list will be in reverse
	* order (last_obj will be the list_head()). If first_obj == 0, do all
	* snapshots back to this dataset's origin.
	*/
	static int
	snaplist_make(dsl_pool_t *dp,
	uint64_t first_obj, uint64_t last_obj, list_t l, void tag)
	{
	uint64_t obj = last_obj;

	list_create(l, sizeof (struct promotenode),
	offsetof(struct promotenode, link));

	while (obj != first_obj) {
	dsl_dataset_t *ds;
	struct promotenode *snap;
	int err;

	err = dsl_dataset_hold_obj(dp, obj, tag, &ds);
	ASSERT(err != ENOENT);
	if (err != 0)
	return (err);

	if (first_obj == 0)
	first_obj = dsl_dir_phys(ds->ds_dir)->dd_origin_obj;

	snap = kmem_alloc(sizeof (*snap), KM_SLEEP);
	snap->ds = ds;
	list_insert_tail(l, snap);
	obj = dsl_dataset_phys(ds)->ds_prev_snap_obj;
	}

	return (0);
	}

	static int
	snaplist_space(list_t l, uint64_t mintxg, uint64_t spacep)
	{
	struct promotenode *snap;

	*spacep = 0;
	for (snap = list_head(l); snap; snap = list_next(l, snap)) {
	uint64_t used, comp, uncomp;
	dsl_deadlist_space_range(&snap->ds->ds_deadlist,
	mintxg, UINT64_MAX, &used, &comp, &uncomp);
	*spacep += used;
	}
	return (0);
	}

	static void
	snaplist_destroy(list_t l, void tag)
	{
	struct promotenode *snap;

	if (l == NULL \|\| !list_link_active(&l->list_head))
	return;

	while ((snap = list_tail(l)) != NULL) {
	list_remove(l, snap);
	dsl_dataset_rele(snap->ds, tag);
	kmem_free(snap, sizeof (*snap));
	}
	list_destroy(l);
	}

	static int
	promote_hold(dsl_dataset_promote_arg_t ddpa, dsl_pool_t dp, void *tag)
	{
	int error;
	dsl_dir_t *dd;
	struct promotenode *snap;

	error = dsl_dataset_hold(dp, ddpa->ddpa_clonename, tag,
	&ddpa->ddpa_clone);
	if (error != 0)
	return (error);
	dd = ddpa->ddpa_clone->ds_dir;

	if (ddpa->ddpa_clone->ds_is_snapshot \|\|
	!dsl_dir_is_clone(dd)) {
	dsl_dataset_rele(ddpa->ddpa_clone, tag);
	return (SET_ERROR(EINVAL));
	}

	error = snaplist_make(dp, 0, dsl_dir_phys(dd)->dd_origin_obj,
	&ddpa->shared_snaps, tag);
	if (error != 0)
	goto out;

	error = snaplist_make(dp, 0, ddpa->ddpa_clone->ds_object,
	&ddpa->clone_snaps, tag);
	if (error != 0)
	goto out;

	snap = list_head(&ddpa->shared_snaps);
	ASSERT3U(snap->ds->ds_object, ==, dsl_dir_phys(dd)->dd_origin_obj);
	error = snaplist_make(dp, dsl_dir_phys(dd)->dd_origin_obj,
	dsl_dir_phys(snap->ds->ds_dir)->dd_head_dataset_obj,
	&ddpa->origin_snaps, tag);
	if (error != 0)
	goto out;

	if (dsl_dir_phys(snap->ds->ds_dir)->dd_origin_obj != 0) {
	error = dsl_dataset_hold_obj(dp,
	dsl_dir_phys(snap->ds->ds_dir)->dd_origin_obj,
	tag, &ddpa->origin_origin);
	if (error != 0)
	goto out;
	}
	out:
	if (error != 0)
	promote_rele(ddpa, tag);
	return (error);
	}

	static void
	promote_rele(dsl_dataset_promote_arg_t ddpa, void tag)
	{
	snaplist_destroy(&ddpa->shared_snaps, tag);
	snaplist_destroy(&ddpa->clone_snaps, tag);
	snaplist_destroy(&ddpa->origin_snaps, tag);
	if (ddpa->origin_origin != NULL)
	dsl_dataset_rele(ddpa->origin_origin, tag);
	dsl_dataset_rele(ddpa->ddpa_clone, tag);
	}

	/*
	* Promote a clone.
	*
	* If it fails due to a conflicting snapshot name, "conflsnap" will be filled
	* in with the name. (It must be at least ZFS_MAX_DATASET_NAME_LEN bytes long.)
	*/
	int
	dsl_dataset_promote(const char name, char conflsnap)
	{
	dsl_dataset_promote_arg_t ddpa = { 0 };
	uint64_t numsnaps;
	int error;
	nvpair_t *snap_pair;
	objset_t *os;

	/*
	* We will modify space proportional to the number of
	* snapshots. Compute numsnaps.
	*/
	error = dmu_objset_hold(name, FTAG, &os);
	if (error != 0)
	return (error);
	error = zap_count(dmu_objset_pool(os)->dp_meta_objset,
	dsl_dataset_phys(dmu_objset_ds(os))->ds_snapnames_zapobj,
	&numsnaps);
	dmu_objset_rele(os, FTAG);
	if (error != 0)
	return (error);

	ddpa.ddpa_clonename = name;
	ddpa.err_ds = fnvlist_alloc();
	ddpa.cr = CRED();
	ddpa.proc = curproc;

	error = dsl_sync_task(name, dsl_dataset_promote_check,
	dsl_dataset_promote_sync, &ddpa,
	2 + numsnaps, ZFS_SPACE_CHECK_RESERVED);

	/*
	* Return the first conflicting snapshot found.
	*/
	snap_pair = nvlist_next_nvpair(ddpa.err_ds, NULL);
	if (snap_pair != NULL && conflsnap != NULL)
	(void) strlcpy(conflsnap, nvpair_name(snap_pair),
	ZFS_MAX_DATASET_NAME_LEN);

	fnvlist_free(ddpa.err_ds);
	return (error);
	}

	int
	dsl_dataset_clone_swap_check_impl(dsl_dataset_t *clone,
	dsl_dataset_t origin_head, boolean_t force, void owner, dmu_tx_t *tx)
	{
	/*
	* "slack" factor for received datasets with refquota set on them.
	* See the bottom of this function for details on its use.
	*/
	uint64_t refquota_slack = (uint64_t)DMU_MAX_ACCESS *
	spa_asize_inflation;
	int64_t unused_refres_delta;

	/* they should both be heads */
	if (clone->ds_is_snapshot \|\|
	origin_head->ds_is_snapshot)
	return (SET_ERROR(EINVAL));

	/* if we are not forcing, the branch point should be just before them */
	if (!force && clone->ds_prev != origin_head->ds_prev)
	return (SET_ERROR(EINVAL));

	/* clone should be the clone (unless they are unrelated) */
	if (clone->ds_prev != NULL &&
	clone->ds_prev != clone->ds_dir->dd_pool->dp_origin_snap &&
	origin_head->ds_dir != clone->ds_prev->ds_dir)
	return (SET_ERROR(EINVAL));

	/* the clone should be a child of the origin */
	if (clone->ds_dir->dd_parent != origin_head->ds_dir)
	return (SET_ERROR(EINVAL));

	/* origin_head shouldn't be modified unless 'force' */
	if (!force &&
	dsl_dataset_modified_since_snap(origin_head, origin_head->ds_prev))
	return (SET_ERROR(ETXTBSY));

	/* origin_head should have no long holds (e.g. is not mounted) */
	if (dsl_dataset_handoff_check(origin_head, owner, tx))
	return (SET_ERROR(EBUSY));

	/* check amount of any unconsumed refreservation */
	unused_refres_delta =
	(int64_t)MIN(origin_head->ds_reserved,
	dsl_dataset_phys(origin_head)->ds_unique_bytes) -
	(int64_t)MIN(origin_head->ds_reserved,
	dsl_dataset_phys(clone)->ds_unique_bytes);

	if (unused_refres_delta > 0 &&
	unused_refres_delta >
	dsl_dir_space_available(origin_head->ds_dir, NULL, 0, TRUE))
	return (SET_ERROR(ENOSPC));

	/*
	* The clone can't be too much over the head's refquota.
	*
	* To ensure that the entire refquota can be used, we allow one
	* transaction to exceed the refquota. Therefore, this check
	* needs to also allow for the space referenced to be more than the
	* refquota. The maximum amount of space that one transaction can use
	* on disk is DMU_MAX_ACCESS * spa_asize_inflation. Allowing this
	* overage ensures that we are able to receive a filesystem that
	* exceeds the refquota on the source system.
	*
	* So that overage is the refquota_slack we use below.
	*/
	if (origin_head->ds_quota != 0 &&
	dsl_dataset_phys(clone)->ds_referenced_bytes >
	origin_head->ds_quota + refquota_slack)
	return (SET_ERROR(EDQUOT));

	return (0);
	}

	static void
	dsl_dataset_swap_remap_deadlists(dsl_dataset_t *clone,
	dsl_dataset_t origin, dmu_tx_t tx)
	{
	uint64_t clone_remap_dl_obj, origin_remap_dl_obj;
	dsl_pool_t *dp = dmu_tx_pool(tx);

	ASSERT(dsl_pool_sync_context(dp));

	clone_remap_dl_obj = dsl_dataset_get_remap_deadlist_object(clone);
	origin_remap_dl_obj = dsl_dataset_get_remap_deadlist_object(origin);

	if (clone_remap_dl_obj != 0) {
	dsl_deadlist_close(&clone->ds_remap_deadlist);
	dsl_dataset_unset_remap_deadlist_object(clone, tx);
	}
	if (origin_remap_dl_obj != 0) {
	dsl_deadlist_close(&origin->ds_remap_deadlist);
	dsl_dataset_unset_remap_deadlist_object(origin, tx);
	}

	if (clone_remap_dl_obj != 0) {
	dsl_dataset_set_remap_deadlist_object(origin,
	clone_remap_dl_obj, tx);
	dsl_deadlist_open(&origin->ds_remap_deadlist,
	dp->dp_meta_objset, clone_remap_dl_obj);
	}
	if (origin_remap_dl_obj != 0) {
	dsl_dataset_set_remap_deadlist_object(clone,
	origin_remap_dl_obj, tx);
	dsl_deadlist_open(&clone->ds_remap_deadlist,
	dp->dp_meta_objset, origin_remap_dl_obj);
	}
	}

	void
	dsl_dataset_clone_swap_sync_impl(dsl_dataset_t *clone,
	dsl_dataset_t origin_head, dmu_tx_t tx)
	{
	dsl_pool_t *dp = dmu_tx_pool(tx);
	int64_t unused_refres_delta;

	ASSERT(clone->ds_reserved == 0);
	/*
	* NOTE: On DEBUG kernels there could be a race between this and
	* the check function if spa_asize_inflation is adjusted...
	*/
	ASSERT(origin_head->ds_quota == 0 \|\|
	dsl_dataset_phys(clone)->ds_unique_bytes <= origin_head->ds_quota +
	DMU_MAX_ACCESS * spa_asize_inflation);
	ASSERT3P(clone->ds_prev, ==, origin_head->ds_prev);

	dsl_dir_cancel_waiters(origin_head->ds_dir);

	/*
	* Swap per-dataset feature flags.
	*/
	for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
	if (!(spa_feature_table[f].fi_flags &
	ZFEATURE_FLAG_PER_DATASET)) {
	ASSERT(!dsl_dataset_feature_is_active(clone, f));
	ASSERT(!dsl_dataset_feature_is_active(origin_head, f));
	continue;
	}

	boolean_t clone_inuse = dsl_dataset_feature_is_active(clone, f);
	void *clone_feature = clone->ds_feature[f];
	boolean_t origin_head_inuse =
	dsl_dataset_feature_is_active(origin_head, f);
	void *origin_head_feature = origin_head->ds_feature[f];

	if (clone_inuse)
	dsl_dataset_deactivate_feature_impl(clone, f, tx);
	if (origin_head_inuse)
	dsl_dataset_deactivate_feature_impl(origin_head, f, tx);

	if (clone_inuse) {
	dsl_dataset_activate_feature(origin_head->ds_object, f,
	clone_feature, tx);
	origin_head->ds_feature[f] = clone_feature;
	}
	if (origin_head_inuse) {
	dsl_dataset_activate_feature(clone->ds_object, f,
	origin_head_feature, tx);
	clone->ds_feature[f] = origin_head_feature;
	}
	}

	dmu_buf_will_dirty(clone->ds_dbuf, tx);
	dmu_buf_will_dirty(origin_head->ds_dbuf, tx);

	if (clone->ds_objset != NULL) {
	dmu_objset_evict(clone->ds_objset);
	clone->ds_objset = NULL;
	}

	if (origin_head->ds_objset != NULL) {
	dmu_objset_evict(origin_head->ds_objset);
	origin_head->ds_objset = NULL;
	}

	unused_refres_delta =
	(int64_t)MIN(origin_head->ds_reserved,
	dsl_dataset_phys(origin_head)->ds_unique_bytes) -
	(int64_t)MIN(origin_head->ds_reserved,
	dsl_dataset_phys(clone)->ds_unique_bytes);

	/*
	* Reset origin's unique bytes.
	*/
	{
	dsl_dataset_t *origin = clone->ds_prev;
	uint64_t comp, uncomp;

	dmu_buf_will_dirty(origin->ds_dbuf, tx);
	dsl_deadlist_space_range(&clone->ds_deadlist,
	dsl_dataset_phys(origin)->ds_prev_snap_txg, UINT64_MAX,
	&dsl_dataset_phys(origin)->ds_unique_bytes, &comp, &uncomp);
	}

	/* swap blkptrs */
	{
	rrw_enter(&clone->ds_bp_rwlock, RW_WRITER, FTAG);
	rrw_enter(&origin_head->ds_bp_rwlock, RW_WRITER, FTAG);
	blkptr_t tmp;
	tmp = dsl_dataset_phys(origin_head)->ds_bp;
	dsl_dataset_phys(origin_head)->ds_bp =
	dsl_dataset_phys(clone)->ds_bp;
	dsl_dataset_phys(clone)->ds_bp = tmp;
	rrw_exit(&origin_head->ds_bp_rwlock, FTAG);
	rrw_exit(&clone->ds_bp_rwlock, FTAG);
	}

	/* set dd__bytes /
	{
	int64_t dused, dcomp, duncomp;
	uint64_t cdl_used, cdl_comp, cdl_uncomp;
	uint64_t odl_used, odl_comp, odl_uncomp;

	ASSERT3U(dsl_dir_phys(clone->ds_dir)->
	dd_used_breakdown[DD_USED_SNAP], ==, 0);

	dsl_deadlist_space(&clone->ds_deadlist,
	&cdl_used, &cdl_comp, &cdl_uncomp);
	dsl_deadlist_space(&origin_head->ds_deadlist,
	&odl_used, &odl_comp, &odl_uncomp);

	dused = dsl_dataset_phys(clone)->ds_referenced_bytes +
	cdl_used -
	(dsl_dataset_phys(origin_head)->ds_referenced_bytes +
	odl_used);
	dcomp = dsl_dataset_phys(clone)->ds_compressed_bytes +
	cdl_comp -
	(dsl_dataset_phys(origin_head)->ds_compressed_bytes +
	odl_comp);
	duncomp = dsl_dataset_phys(clone)->ds_uncompressed_bytes +
	cdl_uncomp -
	(dsl_dataset_phys(origin_head)->ds_uncompressed_bytes +
	odl_uncomp);

	dsl_dir_diduse_space(origin_head->ds_dir, DD_USED_HEAD,
	dused, dcomp, duncomp, tx);
	dsl_dir_diduse_space(clone->ds_dir, DD_USED_HEAD,
	-dused, -dcomp, -duncomp, tx);

	/*
	* The difference in the space used by snapshots is the
	* difference in snapshot space due to the head's
	* deadlist (since that's the only thing that's
	* changing that affects the snapused).
	*/
	dsl_deadlist_space_range(&clone->ds_deadlist,
	origin_head->ds_dir->dd_origin_txg, UINT64_MAX,
	&cdl_used, &cdl_comp, &cdl_uncomp);
	dsl_deadlist_space_range(&origin_head->ds_deadlist,
	origin_head->ds_dir->dd_origin_txg, UINT64_MAX,
	&odl_used, &odl_comp, &odl_uncomp);
	dsl_dir_transfer_space(origin_head->ds_dir, cdl_used - odl_used,
	DD_USED_HEAD, DD_USED_SNAP, tx);
	}

	/* swap ds__bytes /
	SWITCH64(dsl_dataset_phys(origin_head)->ds_referenced_bytes,
	dsl_dataset_phys(clone)->ds_referenced_bytes);
	SWITCH64(dsl_dataset_phys(origin_head)->ds_compressed_bytes,
	dsl_dataset_phys(clone)->ds_compressed_bytes);
	SWITCH64(dsl_dataset_phys(origin_head)->ds_uncompressed_bytes,
	dsl_dataset_phys(clone)->ds_uncompressed_bytes);
	SWITCH64(dsl_dataset_phys(origin_head)->ds_unique_bytes,
	dsl_dataset_phys(clone)->ds_unique_bytes);

	/* apply any parent delta for change in unconsumed refreservation */
	dsl_dir_diduse_space(origin_head->ds_dir, DD_USED_REFRSRV,
	unused_refres_delta, 0, 0, tx);

	/*
	* Swap deadlists.
	*/
	dsl_deadlist_close(&clone->ds_deadlist);
	dsl_deadlist_close(&origin_head->ds_deadlist);
	SWITCH64(dsl_dataset_phys(origin_head)->ds_deadlist_obj,
	dsl_dataset_phys(clone)->ds_deadlist_obj);
	dsl_deadlist_open(&clone->ds_deadlist, dp->dp_meta_objset,
	dsl_dataset_phys(clone)->ds_deadlist_obj);
	dsl_deadlist_open(&origin_head->ds_deadlist, dp->dp_meta_objset,
	dsl_dataset_phys(origin_head)->ds_deadlist_obj);
	dsl_dataset_swap_remap_deadlists(clone, origin_head, tx);

	/*
	* If there is a bookmark at the origin, its "next dataset" is
	* changing, so we need to reset its FBN.
	*/
	dsl_bookmark_next_changed(origin_head, origin_head->ds_prev, tx);

	dsl_scan_ds_clone_swapped(origin_head, clone, tx);

	/*
	* Destroy any livelists associated with the clone or the origin,
	* since after the swap the corresponding livelists are no longer
	* valid.
	*/
	dsl_dir_remove_livelist(clone->ds_dir, tx, B_TRUE);
	dsl_dir_remove_livelist(origin_head->ds_dir, tx, B_TRUE);

	spa_history_log_internal_ds(clone, "clone swap", tx,
	"parent=%s", origin_head->ds_dir->dd_myname);
	}

	/*
	* Given a pool name and a dataset object number in that pool,
	* return the name of that dataset.
	*/
	int
	dsl_dsobj_to_dsname(char pname, uint64_t obj, char buf)
	{
	dsl_pool_t *dp;
	dsl_dataset_t *ds;
	int error;

	error = dsl_pool_hold(pname, FTAG, &dp);
	if (error != 0)
	return (error);

	error = dsl_dataset_hold_obj(dp, obj, FTAG, &ds);
	if (error == 0) {
	dsl_dataset_name(ds, buf);
	dsl_dataset_rele(ds, FTAG);
	}
	dsl_pool_rele(dp, FTAG);

	return (error);
	}

	int
	dsl_dataset_check_quota(dsl_dataset_t *ds, boolean_t check_quota,
	uint64_t asize, uint64_t inflight, uint64_t used, uint64_t ref_rsrv)
	{
	int error = 0;

	ASSERT3S(asize, >, 0);

	/*
	* *ref_rsrv is the portion of asize that will come from any
	* unconsumed refreservation space.
	*/
	*ref_rsrv = 0;

	mutex_enter(&ds->ds_lock);
	/*
	* Make a space adjustment for reserved bytes.
	*/
	if (ds->ds_reserved > dsl_dataset_phys(ds)->ds_unique_bytes) {
	ASSERT3U(*used, >=,
	ds->ds_reserved - dsl_dataset_phys(ds)->ds_unique_bytes);
	*used -=
	(ds->ds_reserved - dsl_dataset_phys(ds)->ds_unique_bytes);
	*ref_rsrv =
	asize - MIN(asize, parent_delta(ds, asize + inflight));
	}

	if (!check_quota \|\| ds->ds_quota == 0) {
	mutex_exit(&ds->ds_lock);
	return (0);
	}
	/*
	* If they are requesting more space, and our current estimate
	* is over quota, they get to try again unless the actual
	* on-disk is over quota and there are no pending changes (which
	* may free up space for us).
	*/
	if (dsl_dataset_phys(ds)->ds_referenced_bytes + inflight >=
	ds->ds_quota) {
	if (inflight > 0 \|\|
	dsl_dataset_phys(ds)->ds_referenced_bytes < ds->ds_quota)
	error = SET_ERROR(ERESTART);
	else
	error = SET_ERROR(EDQUOT);
	}
	mutex_exit(&ds->ds_lock);

	return (error);
	}

	typedef struct dsl_dataset_set_qr_arg {
	const char *ddsqra_name;
	zprop_source_t ddsqra_source;
	uint64_t ddsqra_value;
	} dsl_dataset_set_qr_arg_t;


	/* ARGSUSED */
	static int
	dsl_dataset_set_refquota_check(void arg, dmu_tx_t tx)
	{
	dsl_dataset_set_qr_arg_t *ddsqra = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	dsl_dataset_t *ds;
	int error;
	uint64_t newval;

	if (spa_version(dp->dp_spa) < SPA_VERSION_REFQUOTA)
	return (SET_ERROR(ENOTSUP));

	error = dsl_dataset_hold(dp, ddsqra->ddsqra_name, FTAG, &ds);
	if (error != 0)
	return (error);

	if (ds->ds_is_snapshot) {
	dsl_dataset_rele(ds, FTAG);
	return (SET_ERROR(EINVAL));
	}

	error = dsl_prop_predict(ds->ds_dir,
	zfs_prop_to_name(ZFS_PROP_REFQUOTA),
	ddsqra->ddsqra_source, ddsqra->ddsqra_value, &newval);
	if (error != 0) {
	dsl_dataset_rele(ds, FTAG);
	return (error);
	}

	if (newval == 0) {
	dsl_dataset_rele(ds, FTAG);
	return (0);
	}

	if (newval < dsl_dataset_phys(ds)->ds_referenced_bytes \|\|
	newval < ds->ds_reserved) {
	dsl_dataset_rele(ds, FTAG);
	return (SET_ERROR(ENOSPC));
	}

	dsl_dataset_rele(ds, FTAG);
	return (0);
	}

	static void
	dsl_dataset_set_refquota_sync(void arg, dmu_tx_t tx)
	{
	dsl_dataset_set_qr_arg_t *ddsqra = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	dsl_dataset_t *ds = NULL;
	uint64_t newval;

	VERIFY0(dsl_dataset_hold(dp, ddsqra->ddsqra_name, FTAG, &ds));

	dsl_prop_set_sync_impl(ds,
	zfs_prop_to_name(ZFS_PROP_REFQUOTA),
	ddsqra->ddsqra_source, sizeof (ddsqra->ddsqra_value), 1,
	&ddsqra->ddsqra_value, tx);

	VERIFY0(dsl_prop_get_int_ds(ds,
	zfs_prop_to_name(ZFS_PROP_REFQUOTA), &newval));

	if (ds->ds_quota != newval) {
	dmu_buf_will_dirty(ds->ds_dbuf, tx);
	ds->ds_quota = newval;
	}
	dsl_dataset_rele(ds, FTAG);
	}

	int
	dsl_dataset_set_refquota(const char *dsname, zprop_source_t source,
	uint64_t refquota)
	{
	dsl_dataset_set_qr_arg_t ddsqra;

	ddsqra.ddsqra_name = dsname;
	ddsqra.ddsqra_source = source;
	ddsqra.ddsqra_value = refquota;

	return (dsl_sync_task(dsname, dsl_dataset_set_refquota_check,
	dsl_dataset_set_refquota_sync, &ddsqra, 0,
	ZFS_SPACE_CHECK_EXTRA_RESERVED));
	}

	static int
	dsl_dataset_set_refreservation_check(void arg, dmu_tx_t tx)
	{
	dsl_dataset_set_qr_arg_t *ddsqra = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	dsl_dataset_t *ds;
	int error;
	uint64_t newval, unique;

	if (spa_version(dp->dp_spa) < SPA_VERSION_REFRESERVATION)
	return (SET_ERROR(ENOTSUP));

	error = dsl_dataset_hold(dp, ddsqra->ddsqra_name, FTAG, &ds);
	if (error != 0)
	return (error);

	if (ds->ds_is_snapshot) {
	dsl_dataset_rele(ds, FTAG);
	return (SET_ERROR(EINVAL));
	}

	error = dsl_prop_predict(ds->ds_dir,
	zfs_prop_to_name(ZFS_PROP_REFRESERVATION),
	ddsqra->ddsqra_source, ddsqra->ddsqra_value, &newval);
	if (error != 0) {
	dsl_dataset_rele(ds, FTAG);
	return (error);
	}

	/*
	* If we are doing the preliminary check in open context, the
	* space estimates may be inaccurate.
	*/
	if (!dmu_tx_is_syncing(tx)) {
	dsl_dataset_rele(ds, FTAG);
	return (0);
	}

	mutex_enter(&ds->ds_lock);
	if (!DS_UNIQUE_IS_ACCURATE(ds))
	dsl_dataset_recalc_head_uniq(ds);
	unique = dsl_dataset_phys(ds)->ds_unique_bytes;
	mutex_exit(&ds->ds_lock);

	if (MAX(unique, newval) > MAX(unique, ds->ds_reserved)) {
	uint64_t delta = MAX(unique, newval) -
	MAX(unique, ds->ds_reserved);

	if (delta >
	dsl_dir_space_available(ds->ds_dir, NULL, 0, B_TRUE) \|\|
	(ds->ds_quota > 0 && newval > ds->ds_quota)) {
	dsl_dataset_rele(ds, FTAG);
	return (SET_ERROR(ENOSPC));
	}
	}

	dsl_dataset_rele(ds, FTAG);
	return (0);
	}

	void
	dsl_dataset_set_refreservation_sync_impl(dsl_dataset_t *ds,
	zprop_source_t source, uint64_t value, dmu_tx_t *tx)
	{
	uint64_t newval;
	uint64_t unique;
	int64_t delta;

	dsl_prop_set_sync_impl(ds, zfs_prop_to_name(ZFS_PROP_REFRESERVATION),
	source, sizeof (value), 1, &value, tx);

	VERIFY0(dsl_prop_get_int_ds(ds,
	zfs_prop_to_name(ZFS_PROP_REFRESERVATION), &newval));

	dmu_buf_will_dirty(ds->ds_dbuf, tx);
	mutex_enter(&ds->ds_dir->dd_lock);
	mutex_enter(&ds->ds_lock);
	ASSERT(DS_UNIQUE_IS_ACCURATE(ds));
	unique = dsl_dataset_phys(ds)->ds_unique_bytes;
	delta = MAX(0, (int64_t)(newval - unique)) -
	MAX(0, (int64_t)(ds->ds_reserved - unique));
	ds->ds_reserved = newval;
	mutex_exit(&ds->ds_lock);

	dsl_dir_diduse_space(ds->ds_dir, DD_USED_REFRSRV, delta, 0, 0, tx);
	mutex_exit(&ds->ds_dir->dd_lock);
	}

	static void
	dsl_dataset_set_refreservation_sync(void arg, dmu_tx_t tx)
	{
	dsl_dataset_set_qr_arg_t *ddsqra = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	dsl_dataset_t *ds = NULL;

	VERIFY0(dsl_dataset_hold(dp, ddsqra->ddsqra_name, FTAG, &ds));
	dsl_dataset_set_refreservation_sync_impl(ds,
	ddsqra->ddsqra_source, ddsqra->ddsqra_value, tx);
	dsl_dataset_rele(ds, FTAG);
	}

	int
	dsl_dataset_set_refreservation(const char *dsname, zprop_source_t source,
	uint64_t refreservation)
	{
	dsl_dataset_set_qr_arg_t ddsqra;

	ddsqra.ddsqra_name = dsname;
	ddsqra.ddsqra_source = source;
	ddsqra.ddsqra_value = refreservation;

	return (dsl_sync_task(dsname, dsl_dataset_set_refreservation_check,
	dsl_dataset_set_refreservation_sync, &ddsqra, 0,
	ZFS_SPACE_CHECK_EXTRA_RESERVED));
	}

	typedef struct dsl_dataset_set_compression_arg {
	const char *ddsca_name;
	zprop_source_t ddsca_source;
	uint64_t ddsca_value;
	} dsl_dataset_set_compression_arg_t;

	/* ARGSUSED */
	static int
	dsl_dataset_set_compression_check(void arg, dmu_tx_t tx)
	{
	dsl_dataset_set_compression_arg_t *ddsca = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);

	uint64_t compval = ZIO_COMPRESS_ALGO(ddsca->ddsca_value);
	spa_feature_t f = zio_compress_to_feature(compval);

	if (f == SPA_FEATURE_NONE)
	return (SET_ERROR(EINVAL));

	if (!spa_feature_is_enabled(dp->dp_spa, f))
	return (SET_ERROR(ENOTSUP));

	return (0);
	}

	static void
	dsl_dataset_set_compression_sync(void arg, dmu_tx_t tx)
	{
	dsl_dataset_set_compression_arg_t *ddsca = arg;
	dsl_pool_t *dp = dmu_tx_pool(tx);
	dsl_dataset_t *ds = NULL;

	uint64_t compval = ZIO_COMPRESS_ALGO(ddsca->ddsca_value);
	spa_feature_t f = zio_compress_to_feature(compval);
	ASSERT3S(spa_feature_table[f].fi_type, ==, ZFEATURE_TYPE_BOOLEAN);

	VERIFY0(dsl_dataset_hold(dp, ddsca->ddsca_name, FTAG, &ds));
	if (zfeature_active(f, ds->ds_feature[f]) != B_TRUE) {
	ds->ds_feature_activation[f] = (void *)B_TRUE;
	dsl_dataset_activate_feature(ds->ds_object, f,
	ds->ds_feature_activation[f], tx);
	ds->ds_feature[f] = ds->ds_feature_activation[f];
	}
	dsl_dataset_rele(ds, FTAG);
	}

	int
	dsl_dataset_set_compression(const char *dsname, zprop_source_t source,
	uint64_t compression)
	{
	dsl_dataset_set_compression_arg_t ddsca;

	/*
	* The sync task is only required for zstd in order to activate
	* the feature flag when the property is first set.
	*/
	if (ZIO_COMPRESS_ALGO(compression) != ZIO_COMPRESS_ZSTD)
	return (0);

	ddsca.ddsca_name = dsname;
	ddsca.ddsca_source = source;
	ddsca.ddsca_value = compression;

	return (dsl_sync_task(dsname, dsl_dataset_set_compression_check,
	dsl_dataset_set_compression_sync, &ddsca, 0,
	ZFS_SPACE_CHECK_EXTRA_RESERVED));
	}

	/*
	* Return (in *usedp) the amount of space referenced by "new" that was not
	* referenced at the time the bookmark corresponds to. "New" may be a
	* snapshot or a head. The bookmark must be before new, in
	* new's filesystem (or its origin) -- caller verifies this.
	*
	* The written space is calculated by considering two components: First, we
	* ignore any freed space, and calculate the written as new's used space
	* minus old's used space. Next, we add in the amount of space that was freed
	* between the two time points, thus reducing new's used space relative to
	* old's. Specifically, this is the space that was born before
	* zbm_creation_txg, and freed before new (ie. on new's deadlist or a
	* previous deadlist).
	*
	* space freed [---------------------]
	* snapshots ---O-------O--------O-------O------
	* bookmark new
	*
	* Note, the bookmark's zbm_*_bytes_refd must be valid, but if the HAS_FBN
	* flag is not set, we will calculate the freed_before_next based on the
	* next snapshot's deadlist, rather than using zbm_*_freed_before_next_snap.
	*/
	static int
	dsl_dataset_space_written_impl(zfs_bookmark_phys_t *bmp,
	dsl_dataset_t new, uint64_t usedp, uint64_t compp, uint64_t uncompp)
	{
	int err = 0;
	dsl_pool_t *dp = new->ds_dir->dd_pool;

	ASSERT(dsl_pool_config_held(dp));
	if (dsl_dataset_is_snapshot(new)) {
	ASSERT3U(bmp->zbm_creation_txg, <,
	dsl_dataset_phys(new)->ds_creation_txg);
	}

	*usedp = 0;
	*usedp += dsl_dataset_phys(new)->ds_referenced_bytes;
	*usedp -= bmp->zbm_referenced_bytes_refd;

	*compp = 0;
	*compp += dsl_dataset_phys(new)->ds_compressed_bytes;
	*compp -= bmp->zbm_compressed_bytes_refd;

	*uncompp = 0;
	*uncompp += dsl_dataset_phys(new)->ds_uncompressed_bytes;
	*uncompp -= bmp->zbm_uncompressed_bytes_refd;

	dsl_dataset_t *snap = new;

	while (dsl_dataset_phys(snap)->ds_prev_snap_txg >
	bmp->zbm_creation_txg) {
	uint64_t used, comp, uncomp;

	dsl_deadlist_space_range(&snap->ds_deadlist,
	0, bmp->zbm_creation_txg,
	&used, &comp, &uncomp);
	*usedp += used;
	*compp += comp;
	*uncompp += uncomp;

	uint64_t snapobj = dsl_dataset_phys(snap)->ds_prev_snap_obj;
	if (snap != new)
	dsl_dataset_rele(snap, FTAG);
	err = dsl_dataset_hold_obj(dp, snapobj, FTAG, &snap);
	if (err != 0)
	break;
	}

	/*
	* We might not have the FBN if we are calculating written from
	* a snapshot (because we didn't know the correct "next" snapshot
	* until now).
	*/
	if (bmp->zbm_flags & ZBM_FLAG_HAS_FBN) {
	*usedp += bmp->zbm_referenced_freed_before_next_snap;
	*compp += bmp->zbm_compressed_freed_before_next_snap;
	*uncompp += bmp->zbm_uncompressed_freed_before_next_snap;
	} else {
	ASSERT3U(dsl_dataset_phys(snap)->ds_prev_snap_txg, ==,
	bmp->zbm_creation_txg);
	uint64_t used, comp, uncomp;
	dsl_deadlist_space(&snap->ds_deadlist, &used, &comp, &uncomp);
	*usedp += used;
	*compp += comp;
	*uncompp += uncomp;
	}
	if (snap != new)
	dsl_dataset_rele(snap, FTAG);
	return (err);
	}

	/*
	* Return (in *usedp) the amount of space written in new that was not
	* present at the time the bookmark corresponds to. New may be a
	* snapshot or the head. Old must be a bookmark before new, in
	* new's filesystem (or its origin) -- caller verifies this.
	*/
	int
	dsl_dataset_space_written_bookmark(zfs_bookmark_phys_t *bmp,
	dsl_dataset_t new, uint64_t usedp, uint64_t compp, uint64_t uncompp)
	{
	if (!(bmp->zbm_flags & ZBM_FLAG_HAS_FBN))
	return (SET_ERROR(ENOTSUP));
	return (dsl_dataset_space_written_impl(bmp, new,
	usedp, compp, uncompp));
	}

	/*
	* Return (in *usedp) the amount of space written in new that is not
	* present in oldsnap. New may be a snapshot or the head. Old must be
	* a snapshot before new, in new's filesystem (or its origin). If not then
	* fail and return EINVAL.
	*/
	int
	dsl_dataset_space_written(dsl_dataset_t oldsnap, dsl_dataset_t new,
	uint64_t usedp, uint64_t compp, uint64_t *uncompp)
	{
	if (!dsl_dataset_is_before(new, oldsnap, 0))
	return (SET_ERROR(EINVAL));

	zfs_bookmark_phys_t zbm = { 0 };
	dsl_dataset_phys_t *dsp = dsl_dataset_phys(oldsnap);
	zbm.zbm_guid = dsp->ds_guid;
	zbm.zbm_creation_txg = dsp->ds_creation_txg;
	zbm.zbm_creation_time = dsp->ds_creation_time;
	zbm.zbm_referenced_bytes_refd = dsp->ds_referenced_bytes;
	zbm.zbm_compressed_bytes_refd = dsp->ds_compressed_bytes;
	zbm.zbm_uncompressed_bytes_refd = dsp->ds_uncompressed_bytes;

	/*
	* If oldsnap is the origin (or origin's origin, ...) of new,
	* we can't easily calculate the effective FBN. Therefore,
	* we do not set ZBM_FLAG_HAS_FBN, so that the _impl will calculate
	* it relative to the correct "next": the next snapshot towards "new",
	* rather than the next snapshot in oldsnap's dsl_dir.
	*/
	return (dsl_dataset_space_written_impl(&zbm, new,
	usedp, compp, uncompp));
	}

	/*
	* Return (in *usedp) the amount of space that will be reclaimed if firstsnap,
	* lastsnap, and all snapshots in between are deleted.
	*
	* blocks that would be freed [---------------------------]
	* snapshots ---O-------O--------O-------O--------O
	* firstsnap lastsnap
	*
	* This is the set of blocks that were born after the snap before firstsnap,
	* (birth > firstsnap->prev_snap_txg) and died before the snap after the
	* last snap (ie, is on lastsnap->ds_next->ds_deadlist or an earlier deadlist).
	* We calculate this by iterating over the relevant deadlists (from the snap
	* after lastsnap, backward to the snap after firstsnap), summing up the
	* space on the deadlist that was born after the snap before firstsnap.
	*/
	int
	dsl_dataset_space_wouldfree(dsl_dataset_t *firstsnap,
	dsl_dataset_t *lastsnap,
	uint64_t usedp, uint64_t compp, uint64_t *uncompp)
	{
	int err = 0;
	uint64_t snapobj;
	dsl_pool_t *dp = firstsnap->ds_dir->dd_pool;

	ASSERT(firstsnap->ds_is_snapshot);
	ASSERT(lastsnap->ds_is_snapshot);

	/*
	* Check that the snapshots are in the same dsl_dir, and firstsnap
	* is before lastsnap.
	*/
	if (firstsnap->ds_dir != lastsnap->ds_dir \|\|
	dsl_dataset_phys(firstsnap)->ds_creation_txg >
	dsl_dataset_phys(lastsnap)->ds_creation_txg)
	return (SET_ERROR(EINVAL));

	usedp = compp = *uncompp = 0;

	snapobj = dsl_dataset_phys(lastsnap)->ds_next_snap_obj;
	while (snapobj != firstsnap->ds_object) {
	dsl_dataset_t *ds;
	uint64_t used, comp, uncomp;

	err = dsl_dataset_hold_obj(dp, snapobj, FTAG, &ds);
	if (err != 0)
	break;

	dsl_deadlist_space_range(&ds->ds_deadlist,
	dsl_dataset_phys(firstsnap)->ds_prev_snap_txg, UINT64_MAX,
	&used, &comp, &uncomp);
	*usedp += used;
	*compp += comp;
	*uncompp += uncomp;

	snapobj = dsl_dataset_phys(ds)->ds_prev_snap_obj;
	ASSERT3U(snapobj, !=, 0);
	dsl_dataset_rele(ds, FTAG);
	}
	return (err);
	}

	/*
	* Return TRUE if 'earlier' is an earlier snapshot in 'later's timeline.
	* For example, they could both be snapshots of the same filesystem, and
	* 'earlier' is before 'later'. Or 'earlier' could be the origin of
	* 'later's filesystem. Or 'earlier' could be an older snapshot in the origin's
	* filesystem. Or 'earlier' could be the origin's origin.
	*
	* If non-zero, earlier_txg is used instead of earlier's ds_creation_txg.
	*/
	boolean_t
	dsl_dataset_is_before(dsl_dataset_t later, dsl_dataset_t earlier,
	uint64_t earlier_txg)
	{
	dsl_pool_t *dp = later->ds_dir->dd_pool;
	int error;
	boolean_t ret;

	ASSERT(dsl_pool_config_held(dp));
	ASSERT(earlier->ds_is_snapshot \|\| earlier_txg != 0);

	if (earlier_txg == 0)
	earlier_txg = dsl_dataset_phys(earlier)->ds_creation_txg;

	if (later->ds_is_snapshot &&
	earlier_txg >= dsl_dataset_phys(later)->ds_creation_txg)
	return (B_FALSE);

	if (later->ds_dir == earlier->ds_dir)
	return (B_TRUE);

	/*
	* We check dd_origin_obj explicitly here rather than using
	* dsl_dir_is_clone() so that we will return TRUE if "earlier"
	* is $ORIGIN@$ORIGIN. dsl_dataset_space_written() depends on
	* this behavior.
	*/
	if (dsl_dir_phys(later->ds_dir)->dd_origin_obj == 0)
	return (B_FALSE);

	dsl_dataset_t *origin;
	error = dsl_dataset_hold_obj(dp,
	dsl_dir_phys(later->ds_dir)->dd_origin_obj, FTAG, &origin);
	if (error != 0)
	return (B_FALSE);
	if (dsl_dataset_phys(origin)->ds_creation_txg == earlier_txg &&
	origin->ds_dir == earlier->ds_dir) {
	dsl_dataset_rele(origin, FTAG);
	return (B_TRUE);
	}
	ret = dsl_dataset_is_before(origin, earlier, earlier_txg);
	dsl_dataset_rele(origin, FTAG);
	return (ret);
	}

	void
	dsl_dataset_zapify(dsl_dataset_t ds, dmu_tx_t tx)
	{
	objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset;
	dmu_object_zapify(mos, ds->ds_object, DMU_OT_DSL_DATASET, tx);
	}

	boolean_t
	dsl_dataset_is_zapified(dsl_dataset_t *ds)
	{
	dmu_object_info_t doi;

	dmu_object_info_from_db(ds->ds_dbuf, &doi);
	return (doi.doi_type == DMU_OTN_ZAP_METADATA);
	}

	boolean_t
	dsl_dataset_has_resume_receive_state(dsl_dataset_t *ds)
	{
	return (dsl_dataset_is_zapified(ds) &&
	zap_contains(ds->ds_dir->dd_pool->dp_meta_objset,
	ds->ds_object, DS_FIELD_RESUME_TOGUID) == 0);
	}

	uint64_t
	dsl_dataset_get_remap_deadlist_object(dsl_dataset_t *ds)
	{
	uint64_t remap_deadlist_obj;
	int err;

	if (!dsl_dataset_is_zapified(ds))
	return (0);

	err = zap_lookup(ds->ds_dir->dd_pool->dp_meta_objset, ds->ds_object,
	DS_FIELD_REMAP_DEADLIST, sizeof (remap_deadlist_obj), 1,
	&remap_deadlist_obj);

	if (err != 0) {
	VERIFY3S(err, ==, ENOENT);
	return (0);
	}

	ASSERT(remap_deadlist_obj != 0);
	return (remap_deadlist_obj);
	}

	boolean_t
	dsl_dataset_remap_deadlist_exists(dsl_dataset_t *ds)
	{
	EQUIV(dsl_deadlist_is_open(&ds->ds_remap_deadlist),
	dsl_dataset_get_remap_deadlist_object(ds) != 0);
	return (dsl_deadlist_is_open(&ds->ds_remap_deadlist));
	}

	static void
	dsl_dataset_set_remap_deadlist_object(dsl_dataset_t *ds, uint64_t obj,
	dmu_tx_t *tx)
	{
	ASSERT(obj != 0);
	dsl_dataset_zapify(ds, tx);
	VERIFY0(zap_add(ds->ds_dir->dd_pool->dp_meta_objset, ds->ds_object,
	DS_FIELD_REMAP_DEADLIST, sizeof (obj), 1, &obj, tx));
	}

	static void
	dsl_dataset_unset_remap_deadlist_object(dsl_dataset_t ds, dmu_tx_t tx)
	{
	VERIFY0(zap_remove(ds->ds_dir->dd_pool->dp_meta_objset,
	ds->ds_object, DS_FIELD_REMAP_DEADLIST, tx));
	}

	void
	dsl_dataset_destroy_remap_deadlist(dsl_dataset_t ds, dmu_tx_t tx)
	{
	uint64_t remap_deadlist_object;
	spa_t *spa = ds->ds_dir->dd_pool->dp_spa;

	ASSERT(dmu_tx_is_syncing(tx));
	ASSERT(dsl_dataset_remap_deadlist_exists(ds));

	remap_deadlist_object = ds->ds_remap_deadlist.dl_object;
	dsl_deadlist_close(&ds->ds_remap_deadlist);
	dsl_deadlist_free(spa_meta_objset(spa), remap_deadlist_object, tx);
	dsl_dataset_unset_remap_deadlist_object(ds, tx);
	spa_feature_decr(spa, SPA_FEATURE_OBSOLETE_COUNTS, tx);
	}

	void
	dsl_dataset_create_remap_deadlist(dsl_dataset_t ds, dmu_tx_t tx)
	{
	uint64_t remap_deadlist_obj;
	spa_t *spa = ds->ds_dir->dd_pool->dp_spa;

	ASSERT(dmu_tx_is_syncing(tx));
	ASSERT(MUTEX_HELD(&ds->ds_remap_deadlist_lock));
	/*
	* Currently we only create remap deadlists when there are indirect
	* vdevs with referenced mappings.
	*/
	ASSERT(spa_feature_is_active(spa, SPA_FEATURE_DEVICE_REMOVAL));

	remap_deadlist_obj = dsl_deadlist_clone(
	&ds->ds_deadlist, UINT64_MAX,
	dsl_dataset_phys(ds)->ds_prev_snap_obj, tx);
	dsl_dataset_set_remap_deadlist_object(ds,
	remap_deadlist_obj, tx);
	dsl_deadlist_open(&ds->ds_remap_deadlist, spa_meta_objset(spa),
	remap_deadlist_obj);
	spa_feature_incr(spa, SPA_FEATURE_OBSOLETE_COUNTS, tx);
	}

	void
	dsl_dataset_activate_redaction(dsl_dataset_t ds, uint64_t redact_snaps,
	uint64_t num_redact_snaps, dmu_tx_t *tx)
	{
	uint64_t dsobj = ds->ds_object;
	struct feature_type_uint64_array_arg *ftuaa =
	kmem_zalloc(sizeof (*ftuaa), KM_SLEEP);
	ftuaa->length = (int64_t)num_redact_snaps;
	if (num_redact_snaps > 0) {
	ftuaa->array = kmem_alloc(num_redact_snaps * sizeof (uint64_t),
	KM_SLEEP);
	bcopy(redact_snaps, ftuaa->array, num_redact_snaps *
	sizeof (uint64_t));
	}
	dsl_dataset_activate_feature(dsobj, SPA_FEATURE_REDACTED_DATASETS,
	ftuaa, tx);
	ds->ds_feature[SPA_FEATURE_REDACTED_DATASETS] = ftuaa;
	}

	/* BEGIN CSTYLED */
	#if defined(_LP64)
	#define RECORDSIZE_PERM ZMOD_RW
	#else
	/* Limited to 1M on 32-bit platforms due to lack of virtual address space */
	#define RECORDSIZE_PERM ZMOD_RD
	#endif
	ZFS_MODULE_PARAM(zfs, zfs_, max_recordsize, INT, RECORDSIZE_PERM,
	"Max allowed record size");

	ZFS_MODULE_PARAM(zfs, zfs_, allow_redacted_dataset_mount, INT, ZMOD_RW,
	"Allow mounting of redacted datasets");
	/* END CSTYLED */

	EXPORT_SYMBOL(dsl_dataset_hold);
	EXPORT_SYMBOL(dsl_dataset_hold_flags);
	EXPORT_SYMBOL(dsl_dataset_hold_obj);
	EXPORT_SYMBOL(dsl_dataset_hold_obj_flags);
	EXPORT_SYMBOL(dsl_dataset_own);
	EXPORT_SYMBOL(dsl_dataset_own_obj);
	EXPORT_SYMBOL(dsl_dataset_name);
	EXPORT_SYMBOL(dsl_dataset_rele);
	EXPORT_SYMBOL(dsl_dataset_rele_flags);
	EXPORT_SYMBOL(dsl_dataset_disown);
	EXPORT_SYMBOL(dsl_dataset_tryown);
	EXPORT_SYMBOL(dsl_dataset_create_sync);
	EXPORT_SYMBOL(dsl_dataset_create_sync_dd);
	EXPORT_SYMBOL(dsl_dataset_snapshot_check);
	EXPORT_SYMBOL(dsl_dataset_snapshot_sync);
	EXPORT_SYMBOL(dsl_dataset_promote);
	EXPORT_SYMBOL(dsl_dataset_user_hold);
	EXPORT_SYMBOL(dsl_dataset_user_release);
	EXPORT_SYMBOL(dsl_dataset_get_holds);
	EXPORT_SYMBOL(dsl_dataset_get_blkptr);
	EXPORT_SYMBOL(dsl_dataset_get_spa);
	EXPORT_SYMBOL(dsl_dataset_modified_since_snap);
	EXPORT_SYMBOL(dsl_dataset_space_written);
	EXPORT_SYMBOL(dsl_dataset_space_wouldfree);
	EXPORT_SYMBOL(dsl_dataset_sync);
	EXPORT_SYMBOL(dsl_dataset_block_born);
	EXPORT_SYMBOL(dsl_dataset_block_kill);
	EXPORT_SYMBOL(dsl_dataset_dirty);
	EXPORT_SYMBOL(dsl_dataset_stats);
	EXPORT_SYMBOL(dsl_dataset_fast_stat);
	EXPORT_SYMBOL(dsl_dataset_space);
	EXPORT_SYMBOL(dsl_dataset_fsid_guid);
	EXPORT_SYMBOL(dsl_dsobj_to_dsname);
	EXPORT_SYMBOL(dsl_dataset_check_quota);
	EXPORT_SYMBOL(dsl_dataset_clone_swap_check_impl);
	EXPORT_SYMBOL(dsl_dataset_clone_swap_sync_impl);
	diff --git a/sys/contrib/openzfs/module/zfs/dsl_pool.c b/sys/contrib/openzfs/module/zfs/dsl_pool.c
	index c770eafa75d8..e66c136a9e02 100644
	--- a/sys/contrib/openzfs/module/zfs/dsl_pool.c
	+++ b/sys/contrib/openzfs/module/zfs/dsl_pool.c
	@@ -1,1417 +1,1416 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2011, 2020 by Delphix. All rights reserved.
	* Copyright (c) 2013 Steven Hartland. All rights reserved.
	* Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
	* Copyright 2016 Nexenta Systems, Inc. All rights reserved.
	*/

	#include <sys/dsl_pool.h>
	#include <sys/dsl_dataset.h>
	#include <sys/dsl_prop.h>
	#include <sys/dsl_dir.h>
	#include <sys/dsl_synctask.h>
	#include <sys/dsl_scan.h>
	#include <sys/dnode.h>
	#include <sys/dmu_tx.h>
	#include <sys/dmu_objset.h>
	#include <sys/arc.h>
	#include <sys/zap.h>
	#include <sys/zio.h>
	#include <sys/zfs_context.h>
	#include <sys/fs/zfs.h>
	#include <sys/zfs_znode.h>
	#include <sys/spa_impl.h>
	#include <sys/vdev_impl.h>
	#include <sys/metaslab_impl.h>
	#include <sys/bptree.h>
	#include <sys/zfeature.h>
	#include <sys/zil_impl.h>
	#include <sys/dsl_userhold.h>
	#include <sys/trace_zfs.h>
	#include <sys/mmp.h>

	/*
	* ZFS Write Throttle
	* ------------------
	*
	* ZFS must limit the rate of incoming writes to the rate at which it is able
	* to sync data modifications to the backend storage. Throttling by too much
	* creates an artificial limit; throttling by too little can only be sustained
	* for short periods and would lead to highly lumpy performance. On a per-pool
	* basis, ZFS tracks the amount of modified (dirty) data. As operations change
	* data, the amount of dirty data increases; as ZFS syncs out data, the amount
	* of dirty data decreases. When the amount of dirty data exceeds a
	* predetermined threshold further modifications are blocked until the amount
	* of dirty data decreases (as data is synced out).
	*
	* The limit on dirty data is tunable, and should be adjusted according to
	* both the IO capacity and available memory of the system. The larger the
	* window, the more ZFS is able to aggregate and amortize metadata (and data)
	* changes. However, memory is a limited resource, and allowing for more dirty
	* data comes at the cost of keeping other useful data in memory (for example
	* ZFS data cached by the ARC).
	*
	* Implementation
	*
	* As buffers are modified dsl_pool_willuse_space() increments both the per-
	* txg (dp_dirty_pertxg[]) and poolwide (dp_dirty_total) accounting of
	* dirty space used; dsl_pool_dirty_space() decrements those values as data
	* is synced out from dsl_pool_sync(). While only the poolwide value is
	* relevant, the per-txg value is useful for debugging. The tunable
	* zfs_dirty_data_max determines the dirty space limit. Once that value is
	* exceeded, new writes are halted until space frees up.
	*
	* The zfs_dirty_data_sync_percent tunable dictates the threshold at which we
	* ensure that there is a txg syncing (see the comment in txg.c for a full
	* description of transaction group stages).
	*
	* The IO scheduler uses both the dirty space limit and current amount of
	* dirty data as inputs. Those values affect the number of concurrent IOs ZFS
	* issues. See the comment in vdev_queue.c for details of the IO scheduler.
	*
	* The delay is also calculated based on the amount of dirty data. See the
	* comment above dmu_tx_delay() for details.
	*/

	/*
	* zfs_dirty_data_max will be set to zfs_dirty_data_max_percent% of all memory,
	* capped at zfs_dirty_data_max_max. It can also be overridden with a module
	* parameter.
	*/
	unsigned long zfs_dirty_data_max = 0;
	unsigned long zfs_dirty_data_max_max = 0;
	int zfs_dirty_data_max_percent = 10;
	int zfs_dirty_data_max_max_percent = 25;

	/*
	* If there's at least this much dirty data (as a percentage of
	* zfs_dirty_data_max), push out a txg. This should be less than
	* zfs_vdev_async_write_active_min_dirty_percent.
	*/
	int zfs_dirty_data_sync_percent = 20;

	/*
	* Once there is this amount of dirty data, the dmu_tx_delay() will kick in
	* and delay each transaction.
	* This value should be >= zfs_vdev_async_write_active_max_dirty_percent.
	*/
	int zfs_delay_min_dirty_percent = 60;

	/*
	* This controls how quickly the delay approaches infinity.
	* Larger values cause it to delay more for a given amount of dirty data.
	* Therefore larger values will cause there to be less dirty data for a
	* given throughput.
	*
	* For the smoothest delay, this value should be about 1 billion divided
	* by the maximum number of operations per second. This will smoothly
	* handle between 10x and 1/10th this number.
	*
	* Note: zfs_delay_scale * zfs_dirty_data_max must be < 2^64, due to the
	* multiply in dmu_tx_delay().
	*/
	unsigned long zfs_delay_scale = 1000 * 1000 * 1000 / 2000;

	/*
	* This determines the number of threads used by the dp_sync_taskq.
	*/
	int zfs_sync_taskq_batch_pct = 75;

	/*
	* These tunables determine the behavior of how zil_itxg_clean() is
	* called via zil_clean() in the context of spa_sync(). When an itxg
	* list needs to be cleaned, TQ_NOSLEEP will be used when dispatching.
	* If the dispatch fails, the call to zil_itxg_clean() will occur
	* synchronously in the context of spa_sync(), which can negatively
	* impact the performance of spa_sync() (e.g. in the case of the itxg
	* list having a large number of itxs that needs to be cleaned).
	*
	* Thus, these tunables can be used to manipulate the behavior of the
	* taskq used by zil_clean(); they determine the number of taskq entries
	* that are pre-populated when the taskq is first created (via the
	* "zfs_zil_clean_taskq_minalloc" tunable) and the maximum number of
	* taskq entries that are cached after an on-demand allocation (via the
	* "zfs_zil_clean_taskq_maxalloc").
	*
	* The idea being, we want to try reasonably hard to ensure there will
	* already be a taskq entry pre-allocated by the time that it is needed
	* by zil_clean(). This way, we can avoid the possibility of an
	* on-demand allocation of a new taskq entry from failing, which would
	* result in zil_itxg_clean() being called synchronously from zil_clean()
	* (which can adversely affect performance of spa_sync()).
	*
	* Additionally, the number of threads used by the taskq can be
	* configured via the "zfs_zil_clean_taskq_nthr_pct" tunable.
	*/
	int zfs_zil_clean_taskq_nthr_pct = 100;
	int zfs_zil_clean_taskq_minalloc = 1024;
	int zfs_zil_clean_taskq_maxalloc = 1024 * 1024;

	int
	dsl_pool_open_special_dir(dsl_pool_t dp, const char name, dsl_dir_t **ddp)
	{
	uint64_t obj;
	int err;

	err = zap_lookup(dp->dp_meta_objset,
	dsl_dir_phys(dp->dp_root_dir)->dd_child_dir_zapobj,
	name, sizeof (obj), 1, &obj);
	if (err)
	return (err);

	return (dsl_dir_hold_obj(dp, obj, name, dp, ddp));
	}

	static dsl_pool_t *
	dsl_pool_open_impl(spa_t *spa, uint64_t txg)
	{
	dsl_pool_t *dp;
	blkptr_t *bp = spa_get_rootblkptr(spa);

	dp = kmem_zalloc(sizeof (dsl_pool_t), KM_SLEEP);
	dp->dp_spa = spa;
	dp->dp_meta_rootbp = *bp;
	rrw_init(&dp->dp_config_rwlock, B_TRUE);
	txg_init(dp, txg);
	mmp_init(spa);

	txg_list_create(&dp->dp_dirty_datasets, spa,
	offsetof(dsl_dataset_t, ds_dirty_link));
	txg_list_create(&dp->dp_dirty_zilogs, spa,
	offsetof(zilog_t, zl_dirty_link));
	txg_list_create(&dp->dp_dirty_dirs, spa,
	offsetof(dsl_dir_t, dd_dirty_link));
	txg_list_create(&dp->dp_sync_tasks, spa,
	offsetof(dsl_sync_task_t, dst_node));
	txg_list_create(&dp->dp_early_sync_tasks, spa,
	offsetof(dsl_sync_task_t, dst_node));

	dp->dp_sync_taskq = taskq_create("dp_sync_taskq",
	zfs_sync_taskq_batch_pct, minclsyspri, 1, INT_MAX,
	TASKQ_THREADS_CPU_PCT);

	dp->dp_zil_clean_taskq = taskq_create("dp_zil_clean_taskq",
	zfs_zil_clean_taskq_nthr_pct, minclsyspri,
	zfs_zil_clean_taskq_minalloc,
	zfs_zil_clean_taskq_maxalloc,
	TASKQ_PREPOPULATE \| TASKQ_THREADS_CPU_PCT);

	mutex_init(&dp->dp_lock, NULL, MUTEX_DEFAULT, NULL);
	cv_init(&dp->dp_spaceavail_cv, NULL, CV_DEFAULT, NULL);

	dp->dp_zrele_taskq = taskq_create("z_zrele", 100, defclsyspri,
	boot_ncpus * 8, INT_MAX, TASKQ_PREPOPULATE \| TASKQ_DYNAMIC \|
	TASKQ_THREADS_CPU_PCT);
	dp->dp_unlinked_drain_taskq = taskq_create("z_unlinked_drain",
	100, defclsyspri, boot_ncpus, INT_MAX,
	TASKQ_PREPOPULATE \| TASKQ_DYNAMIC \| TASKQ_THREADS_CPU_PCT);

	return (dp);
	}

	int
	dsl_pool_init(spa_t spa, uint64_t txg, dsl_pool_t *dpp)
	{
	int err;
	dsl_pool_t *dp = dsl_pool_open_impl(spa, txg);

	/*
	* Initialize the caller's dsl_pool_t structure before we actually open
	* the meta objset. This is done because a self-healing write zio may
	* be issued as part of dmu_objset_open_impl() and the spa needs its
	* dsl_pool_t initialized in order to handle the write.
	*/
	*dpp = dp;

	err = dmu_objset_open_impl(spa, NULL, &dp->dp_meta_rootbp,
	&dp->dp_meta_objset);
	if (err != 0) {
	dsl_pool_close(dp);
	*dpp = NULL;
	}

	return (err);
	}

	int
	dsl_pool_open(dsl_pool_t *dp)
	{
	int err;
	dsl_dir_t *dd;
	dsl_dataset_t *ds;
	uint64_t obj;

	rrw_enter(&dp->dp_config_rwlock, RW_WRITER, FTAG);
	err = zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
	DMU_POOL_ROOT_DATASET, sizeof (uint64_t), 1,
	&dp->dp_root_dir_obj);
	if (err)
	goto out;

	err = dsl_dir_hold_obj(dp, dp->dp_root_dir_obj,
	NULL, dp, &dp->dp_root_dir);
	if (err)
	goto out;

	err = dsl_pool_open_special_dir(dp, MOS_DIR_NAME, &dp->dp_mos_dir);
	if (err)
	goto out;

	if (spa_version(dp->dp_spa) >= SPA_VERSION_ORIGIN) {
	err = dsl_pool_open_special_dir(dp, ORIGIN_DIR_NAME, &dd);
	if (err)
	goto out;
	err = dsl_dataset_hold_obj(dp,
	dsl_dir_phys(dd)->dd_head_dataset_obj, FTAG, &ds);
	if (err == 0) {
	err = dsl_dataset_hold_obj(dp,
	dsl_dataset_phys(ds)->ds_prev_snap_obj, dp,
	&dp->dp_origin_snap);
	dsl_dataset_rele(ds, FTAG);
	}
	dsl_dir_rele(dd, dp);
	if (err)
	goto out;
	}

	if (spa_version(dp->dp_spa) >= SPA_VERSION_DEADLISTS) {
	err = dsl_pool_open_special_dir(dp, FREE_DIR_NAME,
	&dp->dp_free_dir);
	if (err)
	goto out;

	err = zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
	DMU_POOL_FREE_BPOBJ, sizeof (uint64_t), 1, &obj);
	if (err)
	goto out;
	VERIFY0(bpobj_open(&dp->dp_free_bpobj,
	dp->dp_meta_objset, obj));
	}

	if (spa_feature_is_active(dp->dp_spa, SPA_FEATURE_OBSOLETE_COUNTS)) {
	err = zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
	DMU_POOL_OBSOLETE_BPOBJ, sizeof (uint64_t), 1, &obj);
	if (err == 0) {
	VERIFY0(bpobj_open(&dp->dp_obsolete_bpobj,
	dp->dp_meta_objset, obj));
	} else if (err == ENOENT) {
	/*
	* We might not have created the remap bpobj yet.
	*/
	err = 0;
	} else {
	goto out;
	}
	}

	/*
	* Note: errors ignored, because the these special dirs, used for
	* space accounting, are only created on demand.
	*/
	(void) dsl_pool_open_special_dir(dp, LEAK_DIR_NAME,
	&dp->dp_leak_dir);

	if (spa_feature_is_active(dp->dp_spa, SPA_FEATURE_ASYNC_DESTROY)) {
	err = zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
	DMU_POOL_BPTREE_OBJ, sizeof (uint64_t), 1,
	&dp->dp_bptree_obj);
	if (err != 0)
	goto out;
	}

	if (spa_feature_is_active(dp->dp_spa, SPA_FEATURE_EMPTY_BPOBJ)) {
	err = zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
	DMU_POOL_EMPTY_BPOBJ, sizeof (uint64_t), 1,
	&dp->dp_empty_bpobj);
	if (err != 0)
	goto out;
	}

	err = zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
	DMU_POOL_TMP_USERREFS, sizeof (uint64_t), 1,
	&dp->dp_tmp_userrefs_obj);
	if (err == ENOENT)
	err = 0;
	if (err)
	goto out;

	err = dsl_scan_init(dp, dp->dp_tx.tx_open_txg);

	out:
	rrw_exit(&dp->dp_config_rwlock, FTAG);
	return (err);
	}

	void
	dsl_pool_close(dsl_pool_t *dp)
	{
	/*
	* Drop our references from dsl_pool_open().
	*
	* Since we held the origin_snap from "syncing" context (which
	* includes pool-opening context), it actually only got a "ref"
	* and not a hold, so just drop that here.
	*/
	if (dp->dp_origin_snap != NULL)
	dsl_dataset_rele(dp->dp_origin_snap, dp);
	if (dp->dp_mos_dir != NULL)
	dsl_dir_rele(dp->dp_mos_dir, dp);
	if (dp->dp_free_dir != NULL)
	dsl_dir_rele(dp->dp_free_dir, dp);
	if (dp->dp_leak_dir != NULL)
	dsl_dir_rele(dp->dp_leak_dir, dp);
	if (dp->dp_root_dir != NULL)
	dsl_dir_rele(dp->dp_root_dir, dp);

	bpobj_close(&dp->dp_free_bpobj);
	bpobj_close(&dp->dp_obsolete_bpobj);

	/* undo the dmu_objset_open_impl(mos) from dsl_pool_open() */
	if (dp->dp_meta_objset != NULL)
	dmu_objset_evict(dp->dp_meta_objset);

	txg_list_destroy(&dp->dp_dirty_datasets);
	txg_list_destroy(&dp->dp_dirty_zilogs);
	txg_list_destroy(&dp->dp_sync_tasks);
	txg_list_destroy(&dp->dp_early_sync_tasks);
	txg_list_destroy(&dp->dp_dirty_dirs);

	taskq_destroy(dp->dp_zil_clean_taskq);
	taskq_destroy(dp->dp_sync_taskq);

	/*
	* We can't set retry to TRUE since we're explicitly specifying
	* a spa to flush. This is good enough; any missed buffers for
	* this spa won't cause trouble, and they'll eventually fall
	* out of the ARC just like any other unused buffer.
	*/
	arc_flush(dp->dp_spa, FALSE);

	mmp_fini(dp->dp_spa);
	txg_fini(dp);
	dsl_scan_fini(dp);
	dmu_buf_user_evict_wait();

	rrw_destroy(&dp->dp_config_rwlock);
	mutex_destroy(&dp->dp_lock);
	cv_destroy(&dp->dp_spaceavail_cv);
	taskq_destroy(dp->dp_unlinked_drain_taskq);
	taskq_destroy(dp->dp_zrele_taskq);
	if (dp->dp_blkstats != NULL) {
	mutex_destroy(&dp->dp_blkstats->zab_lock);
	vmem_free(dp->dp_blkstats, sizeof (zfs_all_blkstats_t));
	}
	kmem_free(dp, sizeof (dsl_pool_t));
	}

	void
	dsl_pool_create_obsolete_bpobj(dsl_pool_t dp, dmu_tx_t tx)
	{
	uint64_t obj;
	/*
	* Currently, we only create the obsolete_bpobj where there are
	* indirect vdevs with referenced mappings.
	*/
	ASSERT(spa_feature_is_active(dp->dp_spa, SPA_FEATURE_DEVICE_REMOVAL));
	/* create and open the obsolete_bpobj */
	obj = bpobj_alloc(dp->dp_meta_objset, SPA_OLD_MAXBLOCKSIZE, tx);
	VERIFY0(bpobj_open(&dp->dp_obsolete_bpobj, dp->dp_meta_objset, obj));
	VERIFY0(zap_add(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
	DMU_POOL_OBSOLETE_BPOBJ, sizeof (uint64_t), 1, &obj, tx));
	spa_feature_incr(dp->dp_spa, SPA_FEATURE_OBSOLETE_COUNTS, tx);
	}

	void
	dsl_pool_destroy_obsolete_bpobj(dsl_pool_t dp, dmu_tx_t tx)
	{
	spa_feature_decr(dp->dp_spa, SPA_FEATURE_OBSOLETE_COUNTS, tx);
	VERIFY0(zap_remove(dp->dp_meta_objset,
	DMU_POOL_DIRECTORY_OBJECT,
	DMU_POOL_OBSOLETE_BPOBJ, tx));
	bpobj_free(dp->dp_meta_objset,
	dp->dp_obsolete_bpobj.bpo_object, tx);
	bpobj_close(&dp->dp_obsolete_bpobj);
	}

	dsl_pool_t *
	dsl_pool_create(spa_t spa, nvlist_t zplprops, dsl_crypto_params_t *dcp,
	uint64_t txg)
	{
	int err;
	dsl_pool_t *dp = dsl_pool_open_impl(spa, txg);
	dmu_tx_t *tx = dmu_tx_create_assigned(dp, txg);
	#ifdef _KERNEL
	objset_t *os;
	#else
	objset_t *os __attribute__((unused));
	#endif
	dsl_dataset_t *ds;
	uint64_t obj;

	rrw_enter(&dp->dp_config_rwlock, RW_WRITER, FTAG);

	/* create and open the MOS (meta-objset) */
	dp->dp_meta_objset = dmu_objset_create_impl(spa,
	NULL, &dp->dp_meta_rootbp, DMU_OST_META, tx);
	spa->spa_meta_objset = dp->dp_meta_objset;

	/* create the pool directory */
	err = zap_create_claim(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
	DMU_OT_OBJECT_DIRECTORY, DMU_OT_NONE, 0, tx);
	ASSERT0(err);

	/* Initialize scan structures */
	VERIFY0(dsl_scan_init(dp, txg));

	/* create and open the root dir */
	dp->dp_root_dir_obj = dsl_dir_create_sync(dp, NULL, NULL, tx);
	VERIFY0(dsl_dir_hold_obj(dp, dp->dp_root_dir_obj,
	NULL, dp, &dp->dp_root_dir));

	/* create and open the meta-objset dir */
	(void) dsl_dir_create_sync(dp, dp->dp_root_dir, MOS_DIR_NAME, tx);
	VERIFY0(dsl_pool_open_special_dir(dp,
	MOS_DIR_NAME, &dp->dp_mos_dir));

	if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
	/* create and open the free dir */
	(void) dsl_dir_create_sync(dp, dp->dp_root_dir,
	FREE_DIR_NAME, tx);
	VERIFY0(dsl_pool_open_special_dir(dp,
	FREE_DIR_NAME, &dp->dp_free_dir));

	/* create and open the free_bplist */
	obj = bpobj_alloc(dp->dp_meta_objset, SPA_OLD_MAXBLOCKSIZE, tx);
	VERIFY(zap_add(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
	DMU_POOL_FREE_BPOBJ, sizeof (uint64_t), 1, &obj, tx) == 0);
	VERIFY0(bpobj_open(&dp->dp_free_bpobj,
	dp->dp_meta_objset, obj));
	}

	if (spa_version(spa) >= SPA_VERSION_DSL_SCRUB)
	dsl_pool_create_origin(dp, tx);

	/*
	* Some features may be needed when creating the root dataset, so we
	* create the feature objects here.
	*/
	if (spa_version(spa) >= SPA_VERSION_FEATURES)
	spa_feature_create_zap_objects(spa, tx);

	if (dcp != NULL && dcp->cp_crypt != ZIO_CRYPT_OFF &&
	dcp->cp_crypt != ZIO_CRYPT_INHERIT)
	spa_feature_enable(spa, SPA_FEATURE_ENCRYPTION, tx);

	/* create the root dataset */
	obj = dsl_dataset_create_sync_dd(dp->dp_root_dir, NULL, dcp, 0, tx);

	/* create the root objset */
	VERIFY0(dsl_dataset_hold_obj_flags(dp, obj,
	DS_HOLD_FLAG_DECRYPT, FTAG, &ds));
	rrw_enter(&ds->ds_bp_rwlock, RW_READER, FTAG);
	os = dmu_objset_create_impl(dp->dp_spa, ds,
	dsl_dataset_get_blkptr(ds), DMU_OST_ZFS, tx);
	rrw_exit(&ds->ds_bp_rwlock, FTAG);
	#ifdef _KERNEL
	zfs_create_fs(os, kcred, zplprops, tx);
	#endif
	dsl_dataset_rele_flags(ds, DS_HOLD_FLAG_DECRYPT, FTAG);

	dmu_tx_commit(tx);

	rrw_exit(&dp->dp_config_rwlock, FTAG);

	return (dp);
	}

	/*
	* Account for the meta-objset space in its placeholder dsl_dir.
	*/
	void
	dsl_pool_mos_diduse_space(dsl_pool_t *dp,
	int64_t used, int64_t comp, int64_t uncomp)
	{
	ASSERT3U(comp, ==, uncomp); /* it's all metadata */
	mutex_enter(&dp->dp_lock);
	dp->dp_mos_used_delta += used;
	dp->dp_mos_compressed_delta += comp;
	dp->dp_mos_uncompressed_delta += uncomp;
	mutex_exit(&dp->dp_lock);
	}

	static void
	dsl_pool_sync_mos(dsl_pool_t dp, dmu_tx_t tx)
	{
	zio_t *zio = zio_root(dp->dp_spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED);
	dmu_objset_sync(dp->dp_meta_objset, zio, tx);
	VERIFY0(zio_wait(zio));
	dmu_objset_sync_done(dp->dp_meta_objset, tx);
	taskq_wait(dp->dp_sync_taskq);
	- multilist_destroy(dp->dp_meta_objset->os_synced_dnodes);
	- dp->dp_meta_objset->os_synced_dnodes = NULL;
	+ multilist_destroy(&dp->dp_meta_objset->os_synced_dnodes);

	dprintf_bp(&dp->dp_meta_rootbp, "meta objset rootbp is %s", "");
	spa_set_rootblkptr(dp->dp_spa, &dp->dp_meta_rootbp);
	}

	static void
	dsl_pool_dirty_delta(dsl_pool_t *dp, int64_t delta)
	{
	ASSERT(MUTEX_HELD(&dp->dp_lock));

	if (delta < 0)
	ASSERT3U(-delta, <=, dp->dp_dirty_total);

	dp->dp_dirty_total += delta;

	/*
	* Note: we signal even when increasing dp_dirty_total.
	* This ensures forward progress -- each thread wakes the next waiter.
	*/
	if (dp->dp_dirty_total < zfs_dirty_data_max)
	cv_signal(&dp->dp_spaceavail_cv);
	}

	#ifdef ZFS_DEBUG
	static boolean_t
	dsl_early_sync_task_verify(dsl_pool_t *dp, uint64_t txg)
	{
	spa_t *spa = dp->dp_spa;
	vdev_t *rvd = spa->spa_root_vdev;

	for (uint64_t c = 0; c < rvd->vdev_children; c++) {
	vdev_t *vd = rvd->vdev_child[c];
	txg_list_t *tl = &vd->vdev_ms_list;
	metaslab_t *ms;

	for (ms = txg_list_head(tl, TXG_CLEAN(txg)); ms;
	ms = txg_list_next(tl, ms, TXG_CLEAN(txg))) {
	VERIFY(range_tree_is_empty(ms->ms_freeing));
	VERIFY(range_tree_is_empty(ms->ms_checkpointing));
	}
	}

	return (B_TRUE);
	}
	#endif

	void
	dsl_pool_sync(dsl_pool_t *dp, uint64_t txg)
	{
	zio_t *zio;
	dmu_tx_t *tx;
	dsl_dir_t *dd;
	dsl_dataset_t *ds;
	objset_t *mos = dp->dp_meta_objset;
	list_t synced_datasets;

	list_create(&synced_datasets, sizeof (dsl_dataset_t),
	offsetof(dsl_dataset_t, ds_synced_link));

	tx = dmu_tx_create_assigned(dp, txg);

	/*
	* Run all early sync tasks before writing out any dirty blocks.
	* For more info on early sync tasks see block comment in
	* dsl_early_sync_task().
	*/
	if (!txg_list_empty(&dp->dp_early_sync_tasks, txg)) {
	dsl_sync_task_t *dst;

	ASSERT3U(spa_sync_pass(dp->dp_spa), ==, 1);
	while ((dst =
	txg_list_remove(&dp->dp_early_sync_tasks, txg)) != NULL) {
	ASSERT(dsl_early_sync_task_verify(dp, txg));
	dsl_sync_task_sync(dst, tx);
	}
	ASSERT(dsl_early_sync_task_verify(dp, txg));
	}

	/*
	* Write out all dirty blocks of dirty datasets.
	*/
	zio = zio_root(dp->dp_spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED);
	while ((ds = txg_list_remove(&dp->dp_dirty_datasets, txg)) != NULL) {
	/*
	* We must not sync any non-MOS datasets twice, because
	* we may have taken a snapshot of them. However, we
	* may sync newly-created datasets on pass 2.
	*/
	ASSERT(!list_link_active(&ds->ds_synced_link));
	list_insert_tail(&synced_datasets, ds);
	dsl_dataset_sync(ds, zio, tx);
	}
	VERIFY0(zio_wait(zio));

	/*
	* Update the long range free counter after
	* we're done syncing user data
	*/
	mutex_enter(&dp->dp_lock);
	ASSERT(spa_sync_pass(dp->dp_spa) == 1 \|\|
	dp->dp_long_free_dirty_pertxg[txg & TXG_MASK] == 0);
	dp->dp_long_free_dirty_pertxg[txg & TXG_MASK] = 0;
	mutex_exit(&dp->dp_lock);

	/*
	* After the data blocks have been written (ensured by the zio_wait()
	* above), update the user/group/project space accounting. This happens
	* in tasks dispatched to dp_sync_taskq, so wait for them before
	* continuing.
	*/
	for (ds = list_head(&synced_datasets); ds != NULL;
	ds = list_next(&synced_datasets, ds)) {
	dmu_objset_sync_done(ds->ds_objset, tx);
	}
	taskq_wait(dp->dp_sync_taskq);

	/*
	* Sync the datasets again to push out the changes due to
	* userspace updates. This must be done before we process the
	* sync tasks, so that any snapshots will have the correct
	* user accounting information (and we won't get confused
	* about which blocks are part of the snapshot).
	*/
	zio = zio_root(dp->dp_spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED);
	while ((ds = txg_list_remove(&dp->dp_dirty_datasets, txg)) != NULL) {
	objset_t *os = ds->ds_objset;

	ASSERT(list_link_active(&ds->ds_synced_link));
	dmu_buf_rele(ds->ds_dbuf, ds);
	dsl_dataset_sync(ds, zio, tx);

	/*
	* Release any key mappings created by calls to
	* dsl_dataset_dirty() from the userquota accounting
	* code paths.
	*/
	if (os->os_encrypted && !os->os_raw_receive &&
	!os->os_next_write_raw[txg & TXG_MASK]) {
	ASSERT3P(ds->ds_key_mapping, !=, NULL);
	key_mapping_rele(dp->dp_spa, ds->ds_key_mapping, ds);
	}
	}
	VERIFY0(zio_wait(zio));

	/*
	* Now that the datasets have been completely synced, we can
	* clean up our in-memory structures accumulated while syncing:
	*
	* - move dead blocks from the pending deadlist and livelists
	* to the on-disk versions
	* - release hold from dsl_dataset_dirty()
	* - release key mapping hold from dsl_dataset_dirty()
	*/
	while ((ds = list_remove_head(&synced_datasets)) != NULL) {
	objset_t *os = ds->ds_objset;

	if (os->os_encrypted && !os->os_raw_receive &&
	!os->os_next_write_raw[txg & TXG_MASK]) {
	ASSERT3P(ds->ds_key_mapping, !=, NULL);
	key_mapping_rele(dp->dp_spa, ds->ds_key_mapping, ds);
	}

	dsl_dataset_sync_done(ds, tx);
	}

	while ((dd = txg_list_remove(&dp->dp_dirty_dirs, txg)) != NULL) {
	dsl_dir_sync(dd, tx);
	}

	/*
	* The MOS's space is accounted for in the pool/$MOS
	* (dp_mos_dir). We can't modify the mos while we're syncing
	* it, so we remember the deltas and apply them here.
	*/
	if (dp->dp_mos_used_delta != 0 \|\| dp->dp_mos_compressed_delta != 0 \|\|
	dp->dp_mos_uncompressed_delta != 0) {
	dsl_dir_diduse_space(dp->dp_mos_dir, DD_USED_HEAD,
	dp->dp_mos_used_delta,
	dp->dp_mos_compressed_delta,
	dp->dp_mos_uncompressed_delta, tx);
	dp->dp_mos_used_delta = 0;
	dp->dp_mos_compressed_delta = 0;
	dp->dp_mos_uncompressed_delta = 0;
	}

	if (dmu_objset_is_dirty(mos, txg)) {
	dsl_pool_sync_mos(dp, tx);
	}

	/*
	* We have written all of the accounted dirty data, so our
	* dp_space_towrite should now be zero. However, some seldom-used
	* code paths do not adhere to this (e.g. dbuf_undirty()). Shore up
	* the accounting of any dirtied space now.
	*
	* Note that, besides any dirty data from datasets, the amount of
	* dirty data in the MOS is also accounted by the pool. Therefore,
	* we want to do this cleanup after dsl_pool_sync_mos() so we don't
	* attempt to update the accounting for the same dirty data twice.
	* (i.e. at this point we only update the accounting for the space
	* that we know that we "leaked").
	*/
	dsl_pool_undirty_space(dp, dp->dp_dirty_pertxg[txg & TXG_MASK], txg);

	/*
	* If we modify a dataset in the same txg that we want to destroy it,
	* its dsl_dir's dd_dbuf will be dirty, and thus have a hold on it.
	* dsl_dir_destroy_check() will fail if there are unexpected holds.
	* Therefore, we want to sync the MOS (thus syncing the dd_dbuf
	* and clearing the hold on it) before we process the sync_tasks.
	* The MOS data dirtied by the sync_tasks will be synced on the next
	* pass.
	*/
	if (!txg_list_empty(&dp->dp_sync_tasks, txg)) {
	dsl_sync_task_t *dst;
	/*
	* No more sync tasks should have been added while we
	* were syncing.
	*/
	ASSERT3U(spa_sync_pass(dp->dp_spa), ==, 1);
	while ((dst = txg_list_remove(&dp->dp_sync_tasks, txg)) != NULL)
	dsl_sync_task_sync(dst, tx);
	}

	dmu_tx_commit(tx);

	DTRACE_PROBE2(dsl_pool_sync__done, dsl_pool_t *dp, dp, uint64_t, txg);
	}

	void
	dsl_pool_sync_done(dsl_pool_t *dp, uint64_t txg)
	{
	zilog_t *zilog;

	while ((zilog = txg_list_head(&dp->dp_dirty_zilogs, txg))) {
	dsl_dataset_t *ds = dmu_objset_ds(zilog->zl_os);
	/*
	* We don't remove the zilog from the dp_dirty_zilogs
	* list until after we've cleaned it. This ensures that
	* callers of zilog_is_dirty() receive an accurate
	* answer when they are racing with the spa sync thread.
	*/
	zil_clean(zilog, txg);
	(void) txg_list_remove_this(&dp->dp_dirty_zilogs, zilog, txg);
	ASSERT(!dmu_objset_is_dirty(zilog->zl_os, txg));
	dmu_buf_rele(ds->ds_dbuf, zilog);
	}
	ASSERT(!dmu_objset_is_dirty(dp->dp_meta_objset, txg));
	}

	/*
	* TRUE if the current thread is the tx_sync_thread or if we
	* are being called from SPA context during pool initialization.
	*/
	int
	dsl_pool_sync_context(dsl_pool_t *dp)
	{
	return (curthread == dp->dp_tx.tx_sync_thread \|\|
	spa_is_initializing(dp->dp_spa) \|\|
	taskq_member(dp->dp_sync_taskq, curthread));
	}

	/*
	* This function returns the amount of allocatable space in the pool
	* minus whatever space is currently reserved by ZFS for specific
	* purposes. Specifically:
	*
	* 1] Any reserved SLOP space
	* 2] Any space used by the checkpoint
	* 3] Any space used for deferred frees
	*
	* The latter 2 are especially important because they are needed to
	* rectify the SPA's and DMU's different understanding of how much space
	* is used. Now the DMU is aware of that extra space tracked by the SPA
	* without having to maintain a separate special dir (e.g similar to
	* $MOS, $FREEING, and $LEAKED).
	*
	* Note: By deferred frees here, we mean the frees that were deferred
	* in spa_sync() after sync pass 1 (spa_deferred_bpobj), and not the
	* segments placed in ms_defer trees during metaslab_sync_done().
	*/
	uint64_t
	dsl_pool_adjustedsize(dsl_pool_t *dp, zfs_space_check_t slop_policy)
	{
	spa_t *spa = dp->dp_spa;
	uint64_t space, resv, adjustedsize;
	uint64_t spa_deferred_frees =
	spa->spa_deferred_bpobj.bpo_phys->bpo_bytes;

	space = spa_get_dspace(spa)
	- spa_get_checkpoint_space(spa) - spa_deferred_frees;
	resv = spa_get_slop_space(spa);

	switch (slop_policy) {
	case ZFS_SPACE_CHECK_NORMAL:
	break;
	case ZFS_SPACE_CHECK_RESERVED:
	resv >>= 1;
	break;
	case ZFS_SPACE_CHECK_EXTRA_RESERVED:
	resv >>= 2;
	break;
	case ZFS_SPACE_CHECK_NONE:
	resv = 0;
	break;
	default:
	panic("invalid slop policy value: %d", slop_policy);
	break;
	}
	adjustedsize = (space >= resv) ? (space - resv) : 0;

	return (adjustedsize);
	}

	uint64_t
	dsl_pool_unreserved_space(dsl_pool_t *dp, zfs_space_check_t slop_policy)
	{
	uint64_t poolsize = dsl_pool_adjustedsize(dp, slop_policy);
	uint64_t deferred =
	metaslab_class_get_deferred(spa_normal_class(dp->dp_spa));
	uint64_t quota = (poolsize >= deferred) ? (poolsize - deferred) : 0;
	return (quota);
	}

	boolean_t
	dsl_pool_need_dirty_delay(dsl_pool_t *dp)
	{
	uint64_t delay_min_bytes =
	zfs_dirty_data_max * zfs_delay_min_dirty_percent / 100;
	uint64_t dirty_min_bytes =
	zfs_dirty_data_max * zfs_dirty_data_sync_percent / 100;
	uint64_t dirty;

	mutex_enter(&dp->dp_lock);
	dirty = dp->dp_dirty_total;
	mutex_exit(&dp->dp_lock);
	if (dirty > dirty_min_bytes)
	txg_kick(dp);
	return (dirty > delay_min_bytes);
	}

	void
	dsl_pool_dirty_space(dsl_pool_t dp, int64_t space, dmu_tx_t tx)
	{
	if (space > 0) {
	mutex_enter(&dp->dp_lock);
	dp->dp_dirty_pertxg[tx->tx_txg & TXG_MASK] += space;
	dsl_pool_dirty_delta(dp, space);
	mutex_exit(&dp->dp_lock);
	}
	}

	void
	dsl_pool_undirty_space(dsl_pool_t *dp, int64_t space, uint64_t txg)
	{
	ASSERT3S(space, >=, 0);
	if (space == 0)
	return;

	mutex_enter(&dp->dp_lock);
	if (dp->dp_dirty_pertxg[txg & TXG_MASK] < space) {
	/* XXX writing something we didn't dirty? */
	space = dp->dp_dirty_pertxg[txg & TXG_MASK];
	}
	ASSERT3U(dp->dp_dirty_pertxg[txg & TXG_MASK], >=, space);
	dp->dp_dirty_pertxg[txg & TXG_MASK] -= space;
	ASSERT3U(dp->dp_dirty_total, >=, space);
	dsl_pool_dirty_delta(dp, -space);
	mutex_exit(&dp->dp_lock);
	}

	/* ARGSUSED */
	static int
	upgrade_clones_cb(dsl_pool_t dp, dsl_dataset_t hds, void *arg)
	{
	dmu_tx_t *tx = arg;
	dsl_dataset_t ds, prev = NULL;
	int err;

	err = dsl_dataset_hold_obj(dp, hds->ds_object, FTAG, &ds);
	if (err)
	return (err);

	while (dsl_dataset_phys(ds)->ds_prev_snap_obj != 0) {
	err = dsl_dataset_hold_obj(dp,
	dsl_dataset_phys(ds)->ds_prev_snap_obj, FTAG, &prev);
	if (err) {
	dsl_dataset_rele(ds, FTAG);
	return (err);
	}

	if (dsl_dataset_phys(prev)->ds_next_snap_obj != ds->ds_object)
	break;
	dsl_dataset_rele(ds, FTAG);
	ds = prev;
	prev = NULL;
	}

	if (prev == NULL) {
	prev = dp->dp_origin_snap;

	/*
	* The $ORIGIN can't have any data, or the accounting
	* will be wrong.
	*/
	rrw_enter(&ds->ds_bp_rwlock, RW_READER, FTAG);
	ASSERT0(dsl_dataset_phys(prev)->ds_bp.blk_birth);
	rrw_exit(&ds->ds_bp_rwlock, FTAG);

	/* The origin doesn't get attached to itself */
	if (ds->ds_object == prev->ds_object) {
	dsl_dataset_rele(ds, FTAG);
	return (0);
	}

	dmu_buf_will_dirty(ds->ds_dbuf, tx);
	dsl_dataset_phys(ds)->ds_prev_snap_obj = prev->ds_object;
	dsl_dataset_phys(ds)->ds_prev_snap_txg =
	dsl_dataset_phys(prev)->ds_creation_txg;

	dmu_buf_will_dirty(ds->ds_dir->dd_dbuf, tx);
	dsl_dir_phys(ds->ds_dir)->dd_origin_obj = prev->ds_object;

	dmu_buf_will_dirty(prev->ds_dbuf, tx);
	dsl_dataset_phys(prev)->ds_num_children++;

	if (dsl_dataset_phys(ds)->ds_next_snap_obj == 0) {
	ASSERT(ds->ds_prev == NULL);
	VERIFY0(dsl_dataset_hold_obj(dp,
	dsl_dataset_phys(ds)->ds_prev_snap_obj,
	ds, &ds->ds_prev));
	}
	}

	ASSERT3U(dsl_dir_phys(ds->ds_dir)->dd_origin_obj, ==, prev->ds_object);
	ASSERT3U(dsl_dataset_phys(ds)->ds_prev_snap_obj, ==, prev->ds_object);

	if (dsl_dataset_phys(prev)->ds_next_clones_obj == 0) {
	dmu_buf_will_dirty(prev->ds_dbuf, tx);
	dsl_dataset_phys(prev)->ds_next_clones_obj =
	zap_create(dp->dp_meta_objset,
	DMU_OT_NEXT_CLONES, DMU_OT_NONE, 0, tx);
	}
	VERIFY0(zap_add_int(dp->dp_meta_objset,
	dsl_dataset_phys(prev)->ds_next_clones_obj, ds->ds_object, tx));

	dsl_dataset_rele(ds, FTAG);
	if (prev != dp->dp_origin_snap)
	dsl_dataset_rele(prev, FTAG);
	return (0);
	}

	void
	dsl_pool_upgrade_clones(dsl_pool_t dp, dmu_tx_t tx)
	{
	ASSERT(dmu_tx_is_syncing(tx));
	ASSERT(dp->dp_origin_snap != NULL);

	VERIFY0(dmu_objset_find_dp(dp, dp->dp_root_dir_obj, upgrade_clones_cb,
	tx, DS_FIND_CHILDREN \| DS_FIND_SERIALIZE));
	}

	/* ARGSUSED */
	static int
	upgrade_dir_clones_cb(dsl_pool_t dp, dsl_dataset_t ds, void *arg)
	{
	dmu_tx_t *tx = arg;
	objset_t *mos = dp->dp_meta_objset;

	if (dsl_dir_phys(ds->ds_dir)->dd_origin_obj != 0) {
	dsl_dataset_t *origin;

	VERIFY0(dsl_dataset_hold_obj(dp,
	dsl_dir_phys(ds->ds_dir)->dd_origin_obj, FTAG, &origin));

	if (dsl_dir_phys(origin->ds_dir)->dd_clones == 0) {
	dmu_buf_will_dirty(origin->ds_dir->dd_dbuf, tx);
	dsl_dir_phys(origin->ds_dir)->dd_clones =
	zap_create(mos, DMU_OT_DSL_CLONES, DMU_OT_NONE,
	0, tx);
	}

	VERIFY0(zap_add_int(dp->dp_meta_objset,
	dsl_dir_phys(origin->ds_dir)->dd_clones,
	ds->ds_object, tx));

	dsl_dataset_rele(origin, FTAG);
	}
	return (0);
	}

	void
	dsl_pool_upgrade_dir_clones(dsl_pool_t dp, dmu_tx_t tx)
	{
	uint64_t obj;

	ASSERT(dmu_tx_is_syncing(tx));

	(void) dsl_dir_create_sync(dp, dp->dp_root_dir, FREE_DIR_NAME, tx);
	VERIFY0(dsl_pool_open_special_dir(dp,
	FREE_DIR_NAME, &dp->dp_free_dir));

	/*
	* We can't use bpobj_alloc(), because spa_version() still
	* returns the old version, and we need a new-version bpobj with
	* subobj support. So call dmu_object_alloc() directly.
	*/
	obj = dmu_object_alloc(dp->dp_meta_objset, DMU_OT_BPOBJ,
	SPA_OLD_MAXBLOCKSIZE, DMU_OT_BPOBJ_HDR, sizeof (bpobj_phys_t), tx);
	VERIFY0(zap_add(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
	DMU_POOL_FREE_BPOBJ, sizeof (uint64_t), 1, &obj, tx));
	VERIFY0(bpobj_open(&dp->dp_free_bpobj, dp->dp_meta_objset, obj));

	VERIFY0(dmu_objset_find_dp(dp, dp->dp_root_dir_obj,
	upgrade_dir_clones_cb, tx, DS_FIND_CHILDREN \| DS_FIND_SERIALIZE));
	}

	void
	dsl_pool_create_origin(dsl_pool_t dp, dmu_tx_t tx)
	{
	uint64_t dsobj;
	dsl_dataset_t *ds;

	ASSERT(dmu_tx_is_syncing(tx));
	ASSERT(dp->dp_origin_snap == NULL);
	ASSERT(rrw_held(&dp->dp_config_rwlock, RW_WRITER));

	/* create the origin dir, ds, & snap-ds */
	dsobj = dsl_dataset_create_sync(dp->dp_root_dir, ORIGIN_DIR_NAME,
	NULL, 0, kcred, NULL, tx);
	VERIFY0(dsl_dataset_hold_obj(dp, dsobj, FTAG, &ds));
	dsl_dataset_snapshot_sync_impl(ds, ORIGIN_DIR_NAME, tx);
	VERIFY0(dsl_dataset_hold_obj(dp, dsl_dataset_phys(ds)->ds_prev_snap_obj,
	dp, &dp->dp_origin_snap));
	dsl_dataset_rele(ds, FTAG);
	}

	taskq_t *
	dsl_pool_zrele_taskq(dsl_pool_t *dp)
	{
	return (dp->dp_zrele_taskq);
	}

	taskq_t *
	dsl_pool_unlinked_drain_taskq(dsl_pool_t *dp)
	{
	return (dp->dp_unlinked_drain_taskq);
	}

	/*
	* Walk through the pool-wide zap object of temporary snapshot user holds
	* and release them.
	*/
	void
	dsl_pool_clean_tmp_userrefs(dsl_pool_t *dp)
	{
	zap_attribute_t za;
	zap_cursor_t zc;
	objset_t *mos = dp->dp_meta_objset;
	uint64_t zapobj = dp->dp_tmp_userrefs_obj;
	nvlist_t *holds;

	if (zapobj == 0)
	return;
	ASSERT(spa_version(dp->dp_spa) >= SPA_VERSION_USERREFS);

	holds = fnvlist_alloc();

	for (zap_cursor_init(&zc, mos, zapobj);
	zap_cursor_retrieve(&zc, &za) == 0;
	zap_cursor_advance(&zc)) {
	char *htag;
	nvlist_t *tags;

	htag = strchr(za.za_name, '-');
	*htag = '\0';
	++htag;
	if (nvlist_lookup_nvlist(holds, za.za_name, &tags) != 0) {
	tags = fnvlist_alloc();
	fnvlist_add_boolean(tags, htag);
	fnvlist_add_nvlist(holds, za.za_name, tags);
	fnvlist_free(tags);
	} else {
	fnvlist_add_boolean(tags, htag);
	}
	}
	dsl_dataset_user_release_tmp(dp, holds);
	fnvlist_free(holds);
	zap_cursor_fini(&zc);
	}

	/*
	* Create the pool-wide zap object for storing temporary snapshot holds.
	*/
	static void
	dsl_pool_user_hold_create_obj(dsl_pool_t dp, dmu_tx_t tx)
	{
	objset_t *mos = dp->dp_meta_objset;

	ASSERT(dp->dp_tmp_userrefs_obj == 0);
	ASSERT(dmu_tx_is_syncing(tx));

	dp->dp_tmp_userrefs_obj = zap_create_link(mos, DMU_OT_USERREFS,
	DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_TMP_USERREFS, tx);
	}

	static int
	dsl_pool_user_hold_rele_impl(dsl_pool_t *dp, uint64_t dsobj,
	const char tag, uint64_t now, dmu_tx_t tx, boolean_t holding)
	{
	objset_t *mos = dp->dp_meta_objset;
	uint64_t zapobj = dp->dp_tmp_userrefs_obj;
	char *name;
	int error;

	ASSERT(spa_version(dp->dp_spa) >= SPA_VERSION_USERREFS);
	ASSERT(dmu_tx_is_syncing(tx));

	/*
	* If the pool was created prior to SPA_VERSION_USERREFS, the
	* zap object for temporary holds might not exist yet.
	*/
	if (zapobj == 0) {
	if (holding) {
	dsl_pool_user_hold_create_obj(dp, tx);
	zapobj = dp->dp_tmp_userrefs_obj;
	} else {
	return (SET_ERROR(ENOENT));
	}
	}

	name = kmem_asprintf("%llx-%s", (u_longlong_t)dsobj, tag);
	if (holding)
	error = zap_add(mos, zapobj, name, 8, 1, &now, tx);
	else
	error = zap_remove(mos, zapobj, name, tx);
	kmem_strfree(name);

	return (error);
	}

	/*
	* Add a temporary hold for the given dataset object and tag.
	*/
	int
	dsl_pool_user_hold(dsl_pool_t dp, uint64_t dsobj, const char tag,
	uint64_t now, dmu_tx_t *tx)
	{
	return (dsl_pool_user_hold_rele_impl(dp, dsobj, tag, now, tx, B_TRUE));
	}

	/*
	* Release a temporary hold for the given dataset object and tag.
	*/
	int
	dsl_pool_user_release(dsl_pool_t dp, uint64_t dsobj, const char tag,
	dmu_tx_t *tx)
	{
	return (dsl_pool_user_hold_rele_impl(dp, dsobj, tag, 0,
	tx, B_FALSE));
	}

	/*
	* DSL Pool Configuration Lock
	*
	* The dp_config_rwlock protects against changes to DSL state (e.g. dataset
	* creation / destruction / rename / property setting). It must be held for
	* read to hold a dataset or dsl_dir. I.e. you must call
	* dsl_pool_config_enter() or dsl_pool_hold() before calling
	* dsl_{dataset,dir}_hold{_obj}. In most circumstances, the dp_config_rwlock
	* must be held continuously until all datasets and dsl_dirs are released.
	*
	* The only exception to this rule is that if a "long hold" is placed on
	* a dataset, then the dp_config_rwlock may be dropped while the dataset
	* is still held. The long hold will prevent the dataset from being
	* destroyed -- the destroy will fail with EBUSY. A long hold can be
	* obtained by calling dsl_dataset_long_hold(), or by "owning" a dataset
	* (by calling dsl_{dataset,objset}_{try}own{_obj}).
	*
	* Legitimate long-holders (including owners) should be long-running, cancelable
	* tasks that should cause "zfs destroy" to fail. This includes DMU
	* consumers (i.e. a ZPL filesystem being mounted or ZVOL being open),
	* "zfs send", and "zfs diff". There are several other long-holders whose
	* uses are suboptimal (e.g. "zfs promote", and zil_suspend()).
	*
	* The usual formula for long-holding would be:
	* dsl_pool_hold()
	* dsl_dataset_hold()
	* ... perform checks ...
	* dsl_dataset_long_hold()
	* dsl_pool_rele()
	* ... perform long-running task ...
	* dsl_dataset_long_rele()
	* dsl_dataset_rele()
	*
	* Note that when the long hold is released, the dataset is still held but
	* the pool is not held. The dataset may change arbitrarily during this time
	* (e.g. it could be destroyed). Therefore you shouldn't do anything to the
	* dataset except release it.
	*
	* Operations generally fall somewhere into the following taxonomy:
	*
	* Read-Only Modifying
	*
	* Dataset Layer / MOS zfs get zfs destroy
	*
	* Individual Dataset read() write()
	*
	*
	* Dataset Layer Operations
	*
	* Modifying operations should generally use dsl_sync_task(). The synctask
	* infrastructure enforces proper locking strategy with respect to the
	* dp_config_rwlock. See the comment above dsl_sync_task() for details.
	*
	* Read-only operations will manually hold the pool, then the dataset, obtain
	* information from the dataset, then release the pool and dataset.
	* dmu_objset_{hold,rele}() are convenience routines that also do the pool
	* hold/rele.
	*
	*
	* Operations On Individual Datasets
	*
	* Objects _within_ an objset should only be modified by the current 'owner'
	* of the objset to prevent incorrect concurrent modification. Thus, use
	* {dmu_objset,dsl_dataset}_own to mark some entity as the current owner,
	* and fail with EBUSY if there is already an owner. The owner can then
	* implement its own locking strategy, independent of the dataset layer's
	* locking infrastructure.
	* (E.g., the ZPL has its own set of locks to control concurrency. A regular
	* vnop will not reach into the dataset layer).
	*
	* Ideally, objects would also only be read by the objset’s owner, so that we
	* don’t observe state mid-modification.
	* (E.g. the ZPL is creating a new object and linking it into a directory; if
	* you don’t coordinate with the ZPL to hold ZPL-level locks, you could see an
	* intermediate state. The ioctl level violates this but in pretty benign
	* ways, e.g. reading the zpl props object.)
	*/

	int
	dsl_pool_hold(const char name, void tag, dsl_pool_t **dp)
	{
	spa_t *spa;
	int error;

	error = spa_open(name, &spa, tag);
	if (error == 0) {
	*dp = spa_get_dsl(spa);
	dsl_pool_config_enter(*dp, tag);
	}
	return (error);
	}

	void
	dsl_pool_rele(dsl_pool_t dp, void tag)
	{
	dsl_pool_config_exit(dp, tag);
	spa_close(dp->dp_spa, tag);
	}

	void
	dsl_pool_config_enter(dsl_pool_t dp, void tag)
	{
	/*
	* We use a "reentrant" reader-writer lock, but not reentrantly.
	*
	* The rrwlock can (with the track_all flag) track all reading threads,
	* which is very useful for debugging which code path failed to release
	* the lock, and for verifying that the current thread does hold
	* the lock.
	*
	* (Unlike a rwlock, which knows that N threads hold it for
	* read, but not which threads, so rw_held(RW_READER) returns TRUE
	* if any thread holds it for read, even if this thread doesn't).
	*/
	ASSERT(!rrw_held(&dp->dp_config_rwlock, RW_READER));
	rrw_enter(&dp->dp_config_rwlock, RW_READER, tag);
	}

	void
	dsl_pool_config_enter_prio(dsl_pool_t dp, void tag)
	{
	ASSERT(!rrw_held(&dp->dp_config_rwlock, RW_READER));
	rrw_enter_read_prio(&dp->dp_config_rwlock, tag);
	}

	void
	dsl_pool_config_exit(dsl_pool_t dp, void tag)
	{
	rrw_exit(&dp->dp_config_rwlock, tag);
	}

	boolean_t
	dsl_pool_config_held(dsl_pool_t *dp)
	{
	return (RRW_LOCK_HELD(&dp->dp_config_rwlock));
	}

	boolean_t
	dsl_pool_config_held_writer(dsl_pool_t *dp)
	{
	return (RRW_WRITE_HELD(&dp->dp_config_rwlock));
	}

	EXPORT_SYMBOL(dsl_pool_config_enter);
	EXPORT_SYMBOL(dsl_pool_config_exit);

	/* BEGIN CSTYLED */
	/* zfs_dirty_data_max_percent only applied at module load in arc_init(). */
	ZFS_MODULE_PARAM(zfs, zfs_, dirty_data_max_percent, INT, ZMOD_RD,
	"Max percent of RAM allowed to be dirty");

	/* zfs_dirty_data_max_max_percent only applied at module load in arc_init(). */
	ZFS_MODULE_PARAM(zfs, zfs_, dirty_data_max_max_percent, INT, ZMOD_RD,
	"zfs_dirty_data_max upper bound as % of RAM");

	ZFS_MODULE_PARAM(zfs, zfs_, delay_min_dirty_percent, INT, ZMOD_RW,
	"Transaction delay threshold");

	ZFS_MODULE_PARAM(zfs, zfs_, dirty_data_max, ULONG, ZMOD_RW,
	"Determines the dirty space limit");

	/* zfs_dirty_data_max_max only applied at module load in arc_init(). */
	ZFS_MODULE_PARAM(zfs, zfs_, dirty_data_max_max, ULONG, ZMOD_RD,
	"zfs_dirty_data_max upper bound in bytes");

	ZFS_MODULE_PARAM(zfs, zfs_, dirty_data_sync_percent, INT, ZMOD_RW,
	"Dirty data txg sync threshold as a percentage of zfs_dirty_data_max");

	ZFS_MODULE_PARAM(zfs, zfs_, delay_scale, ULONG, ZMOD_RW,
	"How quickly delay approaches infinity");

	ZFS_MODULE_PARAM(zfs, zfs_, sync_taskq_batch_pct, INT, ZMOD_RW,
	"Max percent of CPUs that are used to sync dirty data");

	ZFS_MODULE_PARAM(zfs_zil, zfs_zil_, clean_taskq_nthr_pct, INT, ZMOD_RW,
	"Max percent of CPUs that are used per dp_sync_taskq");

	ZFS_MODULE_PARAM(zfs_zil, zfs_zil_, clean_taskq_minalloc, INT, ZMOD_RW,
	"Number of taskq entries that are pre-populated");

	ZFS_MODULE_PARAM(zfs_zil, zfs_zil_, clean_taskq_maxalloc, INT, ZMOD_RW,
	"Max number of taskq entries that are cached");
	/* END CSTYLED */
	diff --git a/sys/contrib/openzfs/module/zfs/metaslab.c b/sys/contrib/openzfs/module/zfs/metaslab.c
	index 3b2b79b2f42f..e588765b3382 100644
	--- a/sys/contrib/openzfs/module/zfs/metaslab.c
	+++ b/sys/contrib/openzfs/module/zfs/metaslab.c
	@@ -1,6248 +1,6248 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
	* Copyright (c) 2011, 2019 by Delphix. All rights reserved.
	* Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
	* Copyright (c) 2015, Nexenta Systems, Inc. All rights reserved.
	* Copyright (c) 2017, Intel Corporation.
	*/

	#include <sys/zfs_context.h>
	#include <sys/dmu.h>
	#include <sys/dmu_tx.h>
	#include <sys/space_map.h>
	#include <sys/metaslab_impl.h>
	#include <sys/vdev_impl.h>
	#include <sys/vdev_draid.h>
	#include <sys/zio.h>
	#include <sys/spa_impl.h>
	#include <sys/zfeature.h>
	#include <sys/vdev_indirect_mapping.h>
	#include <sys/zap.h>
	#include <sys/btree.h>

	#define WITH_DF_BLOCK_ALLOCATOR

	#define GANG_ALLOCATION(flags) \
	((flags) & (METASLAB_GANG_CHILD \| METASLAB_GANG_HEADER))

	/*
	* Metaslab granularity, in bytes. This is roughly similar to what would be
	* referred to as the "stripe size" in traditional RAID arrays. In normal
	* operation, we will try to write this amount of data to a top-level vdev
	* before moving on to the next one.
	*/
	unsigned long metaslab_aliquot = 512 << 10;

	/*
	* For testing, make some blocks above a certain size be gang blocks.
	*/
	unsigned long metaslab_force_ganging = SPA_MAXBLOCKSIZE + 1;

	/*
	* In pools where the log space map feature is not enabled we touch
	* multiple metaslabs (and their respective space maps) with each
	* transaction group. Thus, we benefit from having a small space map
	* block size since it allows us to issue more I/O operations scattered
	* around the disk. So a sane default for the space map block size
	* is 8~16K.
	*/
	int zfs_metaslab_sm_blksz_no_log = (1 << 14);

	/*
	* When the log space map feature is enabled, we accumulate a lot of
	* changes per metaslab that are flushed once in a while so we benefit
	* from a bigger block size like 128K for the metaslab space maps.
	*/
	int zfs_metaslab_sm_blksz_with_log = (1 << 17);

	/*
	* The in-core space map representation is more compact than its on-disk form.
	* The zfs_condense_pct determines how much more compact the in-core
	* space map representation must be before we compact it on-disk.
	* Values should be greater than or equal to 100.
	*/
	int zfs_condense_pct = 200;

	/*
	* Condensing a metaslab is not guaranteed to actually reduce the amount of
	* space used on disk. In particular, a space map uses data in increments of
	* MAX(1 << ashift, space_map_blksz), so a metaslab might use the
	* same number of blocks after condensing. Since the goal of condensing is to
	* reduce the number of IOPs required to read the space map, we only want to
	* condense when we can be sure we will reduce the number of blocks used by the
	* space map. Unfortunately, we cannot precisely compute whether or not this is
	* the case in metaslab_should_condense since we are holding ms_lock. Instead,
	* we apply the following heuristic: do not condense a spacemap unless the
	* uncondensed size consumes greater than zfs_metaslab_condense_block_threshold
	* blocks.
	*/
	int zfs_metaslab_condense_block_threshold = 4;

	/*
	* The zfs_mg_noalloc_threshold defines which metaslab groups should
	* be eligible for allocation. The value is defined as a percentage of
	* free space. Metaslab groups that have more free space than
	* zfs_mg_noalloc_threshold are always eligible for allocations. Once
	* a metaslab group's free space is less than or equal to the
	* zfs_mg_noalloc_threshold the allocator will avoid allocating to that
	* group unless all groups in the pool have reached zfs_mg_noalloc_threshold.
	* Once all groups in the pool reach zfs_mg_noalloc_threshold then all
	* groups are allowed to accept allocations. Gang blocks are always
	* eligible to allocate on any metaslab group. The default value of 0 means
	* no metaslab group will be excluded based on this criterion.
	*/
	int zfs_mg_noalloc_threshold = 0;

	/*
	* Metaslab groups are considered eligible for allocations if their
	* fragmentation metric (measured as a percentage) is less than or
	* equal to zfs_mg_fragmentation_threshold. If a metaslab group
	* exceeds this threshold then it will be skipped unless all metaslab
	* groups within the metaslab class have also crossed this threshold.
	*
	* This tunable was introduced to avoid edge cases where we continue
	* allocating from very fragmented disks in our pool while other, less
	* fragmented disks, exists. On the other hand, if all disks in the
	* pool are uniformly approaching the threshold, the threshold can
	* be a speed bump in performance, where we keep switching the disks
	* that we allocate from (e.g. we allocate some segments from disk A
	* making it bypassing the threshold while freeing segments from disk
	* B getting its fragmentation below the threshold).
	*
	* Empirically, we've seen that our vdev selection for allocations is
	* good enough that fragmentation increases uniformly across all vdevs
	* the majority of the time. Thus we set the threshold percentage high
	* enough to avoid hitting the speed bump on pools that are being pushed
	* to the edge.
	*/
	int zfs_mg_fragmentation_threshold = 95;

	/*
	* Allow metaslabs to keep their active state as long as their fragmentation
	* percentage is less than or equal to zfs_metaslab_fragmentation_threshold. An
	* active metaslab that exceeds this threshold will no longer keep its active
	* status allowing better metaslabs to be selected.
	*/
	int zfs_metaslab_fragmentation_threshold = 70;

	/*
	* When set will load all metaslabs when pool is first opened.
	*/
	int metaslab_debug_load = 0;

	/*
	* When set will prevent metaslabs from being unloaded.
	*/
	int metaslab_debug_unload = 0;

	/*
	* Minimum size which forces the dynamic allocator to change
	* it's allocation strategy. Once the space map cannot satisfy
	* an allocation of this size then it switches to using more
	* aggressive strategy (i.e search by size rather than offset).
	*/
	uint64_t metaslab_df_alloc_threshold = SPA_OLD_MAXBLOCKSIZE;

	/*
	* The minimum free space, in percent, which must be available
	* in a space map to continue allocations in a first-fit fashion.
	* Once the space map's free space drops below this level we dynamically
	* switch to using best-fit allocations.
	*/
	int metaslab_df_free_pct = 4;

	/*
	* Maximum distance to search forward from the last offset. Without this
	* limit, fragmented pools can see >100,000 iterations and
	* metaslab_block_picker() becomes the performance limiting factor on
	* high-performance storage.
	*
	* With the default setting of 16MB, we typically see less than 500
	* iterations, even with very fragmented, ashift=9 pools. The maximum number
	* of iterations possible is:
	* metaslab_df_max_search / (2 * (1<<ashift))
	* With the default setting of 16MB this is 16*1024 (with ashift=9) or
	* 2048 (with ashift=12).
	*/
	int metaslab_df_max_search = 16 * 1024 * 1024;

	/*
	* Forces the metaslab_block_picker function to search for at least this many
	* segments forwards until giving up on finding a segment that the allocation
	* will fit into.
	*/
	uint32_t metaslab_min_search_count = 100;

	/*
	* If we are not searching forward (due to metaslab_df_max_search,
	* metaslab_df_free_pct, or metaslab_df_alloc_threshold), this tunable
	* controls what segment is used. If it is set, we will use the largest free
	* segment. If it is not set, we will use a segment of exactly the requested
	* size (or larger).
	*/
	int metaslab_df_use_largest_segment = B_FALSE;

	/*
	* Percentage of all cpus that can be used by the metaslab taskq.
	*/
	int metaslab_load_pct = 50;

	/*
	* These tunables control how long a metaslab will remain loaded after the
	* last allocation from it. A metaslab can't be unloaded until at least
	* metaslab_unload_delay TXG's and metaslab_unload_delay_ms milliseconds
	* have elapsed. However, zfs_metaslab_mem_limit may cause it to be
	* unloaded sooner. These settings are intended to be generous -- to keep
	* metaslabs loaded for a long time, reducing the rate of metaslab loading.
	*/
	int metaslab_unload_delay = 32;
	int metaslab_unload_delay_ms = 10 * 60 * 1000; /* ten minutes */

	/*
	* Max number of metaslabs per group to preload.
	*/
	int metaslab_preload_limit = 10;

	/*
	* Enable/disable preloading of metaslab.
	*/
	int metaslab_preload_enabled = B_TRUE;

	/*
	* Enable/disable fragmentation weighting on metaslabs.
	*/
	int metaslab_fragmentation_factor_enabled = B_TRUE;

	/*
	* Enable/disable lba weighting (i.e. outer tracks are given preference).
	*/
	int metaslab_lba_weighting_enabled = B_TRUE;

	/*
	* Enable/disable metaslab group biasing.
	*/
	int metaslab_bias_enabled = B_TRUE;

	/*
	* Enable/disable remapping of indirect DVAs to their concrete vdevs.
	*/
	boolean_t zfs_remap_blkptr_enable = B_TRUE;

	/*
	* Enable/disable segment-based metaslab selection.
	*/
	int zfs_metaslab_segment_weight_enabled = B_TRUE;

	/*
	* When using segment-based metaslab selection, we will continue
	* allocating from the active metaslab until we have exhausted
	* zfs_metaslab_switch_threshold of its buckets.
	*/
	int zfs_metaslab_switch_threshold = 2;

	/*
	* Internal switch to enable/disable the metaslab allocation tracing
	* facility.
	*/
	boolean_t metaslab_trace_enabled = B_FALSE;

	/*
	* Maximum entries that the metaslab allocation tracing facility will keep
	* in a given list when running in non-debug mode. We limit the number
	* of entries in non-debug mode to prevent us from using up too much memory.
	* The limit should be sufficiently large that we don't expect any allocation
	* to every exceed this value. In debug mode, the system will panic if this
	* limit is ever reached allowing for further investigation.
	*/
	uint64_t metaslab_trace_max_entries = 5000;

	/*
	* Maximum number of metaslabs per group that can be disabled
	* simultaneously.
	*/
	int max_disabled_ms = 3;

	/*
	* Time (in seconds) to respect ms_max_size when the metaslab is not loaded.
	* To avoid 64-bit overflow, don't set above UINT32_MAX.
	*/
	unsigned long zfs_metaslab_max_size_cache_sec = 3600; /* 1 hour */

	/*
	* Maximum percentage of memory to use on storing loaded metaslabs. If loading
	* a metaslab would take it over this percentage, the oldest selected metaslab
	* is automatically unloaded.
	*/
	int zfs_metaslab_mem_limit = 75;

	/*
	* Force the per-metaslab range trees to use 64-bit integers to store
	* segments. Used for debugging purposes.
	*/
	boolean_t zfs_metaslab_force_large_segs = B_FALSE;

	/*
	* By default we only store segments over a certain size in the size-sorted
	* metaslab trees (ms_allocatable_by_size and
	* ms_unflushed_frees_by_size). This dramatically reduces memory usage and
	* improves load and unload times at the cost of causing us to use slightly
	* larger segments than we would otherwise in some cases.
	*/
	uint32_t metaslab_by_size_min_shift = 14;

	/*
	* If not set, we will first try normal allocation. If that fails then
	* we will do a gang allocation. If that fails then we will do a "try hard"
	* gang allocation. If that fails then we will have a multi-layer gang
	* block.
	*
	* If set, we will first try normal allocation. If that fails then
	* we will do a "try hard" allocation. If that fails we will do a gang
	* allocation. If that fails we will do a "try hard" gang allocation. If
	* that fails then we will have a multi-layer gang block.
	*/
	int zfs_metaslab_try_hard_before_gang = B_FALSE;

	/*
	* When not trying hard, we only consider the best zfs_metaslab_find_max_tries
	* metaslabs. This improves performance, especially when there are many
	* metaslabs per vdev and the allocation can't actually be satisfied (so we
	* would otherwise iterate all the metaslabs). If there is a metaslab with a
	* worse weight but it can actually satisfy the allocation, we won't find it
	* until trying hard. This may happen if the worse metaslab is not loaded
	* (and the true weight is better than we have calculated), or due to weight
	* bucketization. E.g. we are looking for a 60K segment, and the best
	* metaslabs all have free segments in the 32-63K bucket, but the best
	* zfs_metaslab_find_max_tries metaslabs have ms_max_size <60KB, and a
	* subsequent metaslab has ms_max_size >60KB (but fewer segments in this
	* bucket, and therefore a lower weight).
	*/
	int zfs_metaslab_find_max_tries = 100;

	static uint64_t metaslab_weight(metaslab_t *, boolean_t);
	static void metaslab_set_fragmentation(metaslab_t *, boolean_t);
	static void metaslab_free_impl(vdev_t *, uint64_t, uint64_t, boolean_t);
	static void metaslab_check_free_impl(vdev_t *, uint64_t, uint64_t);

	static void metaslab_passivate(metaslab_t *msp, uint64_t weight);
	static uint64_t metaslab_weight_from_range_tree(metaslab_t *msp);
	static void metaslab_flush_update(metaslab_t , dmu_tx_t );
	static unsigned int metaslab_idx_func(multilist_t , void );
	static void metaslab_evict(metaslab_t *, uint64_t);
	static void metaslab_rt_add(range_tree_t rt, range_seg_t rs, void *arg);
	kmem_cache_t *metaslab_alloc_trace_cache;

	typedef struct metaslab_stats {
	kstat_named_t metaslabstat_trace_over_limit;
	kstat_named_t metaslabstat_reload_tree;
	kstat_named_t metaslabstat_too_many_tries;
	kstat_named_t metaslabstat_try_hard;
	} metaslab_stats_t;

	static metaslab_stats_t metaslab_stats = {
	{ "trace_over_limit", KSTAT_DATA_UINT64 },
	{ "reload_tree", KSTAT_DATA_UINT64 },
	{ "too_many_tries", KSTAT_DATA_UINT64 },
	{ "try_hard", KSTAT_DATA_UINT64 },
	};

	#define METASLABSTAT_BUMP(stat) \
	atomic_inc_64(&metaslab_stats.stat.value.ui64);


	kstat_t *metaslab_ksp;

	void
	metaslab_stat_init(void)
	{
	ASSERT(metaslab_alloc_trace_cache == NULL);
	metaslab_alloc_trace_cache = kmem_cache_create(
	"metaslab_alloc_trace_cache", sizeof (metaslab_alloc_trace_t),
	0, NULL, NULL, NULL, NULL, NULL, 0);
	metaslab_ksp = kstat_create("zfs", 0, "metaslab_stats",
	"misc", KSTAT_TYPE_NAMED, sizeof (metaslab_stats) /
	sizeof (kstat_named_t), KSTAT_FLAG_VIRTUAL);
	if (metaslab_ksp != NULL) {
	metaslab_ksp->ks_data = &metaslab_stats;
	kstat_install(metaslab_ksp);
	}
	}

	void
	metaslab_stat_fini(void)
	{
	if (metaslab_ksp != NULL) {
	kstat_delete(metaslab_ksp);
	metaslab_ksp = NULL;
	}

	kmem_cache_destroy(metaslab_alloc_trace_cache);
	metaslab_alloc_trace_cache = NULL;
	}

	/*
	* ==========================================================================
	* Metaslab classes
	* ==========================================================================
	*/
	metaslab_class_t *
	metaslab_class_create(spa_t spa, metaslab_ops_t ops)
	{
	metaslab_class_t *mc;

	mc = kmem_zalloc(offsetof(metaslab_class_t,
	mc_allocator[spa->spa_alloc_count]), KM_SLEEP);

	mc->mc_spa = spa;
	mc->mc_ops = ops;
	mutex_init(&mc->mc_lock, NULL, MUTEX_DEFAULT, NULL);
	- mc->mc_metaslab_txg_list = multilist_create(sizeof (metaslab_t),
	+ multilist_create(&mc->mc_metaslab_txg_list, sizeof (metaslab_t),
	offsetof(metaslab_t, ms_class_txg_node), metaslab_idx_func);
	for (int i = 0; i < spa->spa_alloc_count; i++) {
	metaslab_class_allocator_t *mca = &mc->mc_allocator[i];
	mca->mca_rotor = NULL;
	zfs_refcount_create_tracked(&mca->mca_alloc_slots);
	}

	return (mc);
	}

	void
	metaslab_class_destroy(metaslab_class_t *mc)
	{
	spa_t *spa = mc->mc_spa;

	ASSERT(mc->mc_alloc == 0);
	ASSERT(mc->mc_deferred == 0);
	ASSERT(mc->mc_space == 0);
	ASSERT(mc->mc_dspace == 0);

	for (int i = 0; i < spa->spa_alloc_count; i++) {
	metaslab_class_allocator_t *mca = &mc->mc_allocator[i];
	ASSERT(mca->mca_rotor == NULL);
	zfs_refcount_destroy(&mca->mca_alloc_slots);
	}
	mutex_destroy(&mc->mc_lock);
	- multilist_destroy(mc->mc_metaslab_txg_list);
	+ multilist_destroy(&mc->mc_metaslab_txg_list);
	kmem_free(mc, offsetof(metaslab_class_t,
	mc_allocator[spa->spa_alloc_count]));
	}

	int
	metaslab_class_validate(metaslab_class_t *mc)
	{
	metaslab_group_t *mg;
	vdev_t *vd;

	/*
	* Must hold one of the spa_config locks.
	*/
	ASSERT(spa_config_held(mc->mc_spa, SCL_ALL, RW_READER) \|\|
	spa_config_held(mc->mc_spa, SCL_ALL, RW_WRITER));

	if ((mg = mc->mc_allocator[0].mca_rotor) == NULL)
	return (0);

	do {
	vd = mg->mg_vd;
	ASSERT(vd->vdev_mg != NULL);
	ASSERT3P(vd->vdev_top, ==, vd);
	ASSERT3P(mg->mg_class, ==, mc);
	ASSERT3P(vd->vdev_ops, !=, &vdev_hole_ops);
	} while ((mg = mg->mg_next) != mc->mc_allocator[0].mca_rotor);

	return (0);
	}

	static void
	metaslab_class_space_update(metaslab_class_t *mc, int64_t alloc_delta,
	int64_t defer_delta, int64_t space_delta, int64_t dspace_delta)
	{
	atomic_add_64(&mc->mc_alloc, alloc_delta);
	atomic_add_64(&mc->mc_deferred, defer_delta);
	atomic_add_64(&mc->mc_space, space_delta);
	atomic_add_64(&mc->mc_dspace, dspace_delta);
	}

	uint64_t
	metaslab_class_get_alloc(metaslab_class_t *mc)
	{
	return (mc->mc_alloc);
	}

	uint64_t
	metaslab_class_get_deferred(metaslab_class_t *mc)
	{
	return (mc->mc_deferred);
	}

	uint64_t
	metaslab_class_get_space(metaslab_class_t *mc)
	{
	return (mc->mc_space);
	}

	uint64_t
	metaslab_class_get_dspace(metaslab_class_t *mc)
	{
	return (spa_deflate(mc->mc_spa) ? mc->mc_dspace : mc->mc_space);
	}

	void
	metaslab_class_histogram_verify(metaslab_class_t *mc)
	{
	spa_t *spa = mc->mc_spa;
	vdev_t *rvd = spa->spa_root_vdev;
	uint64_t *mc_hist;
	int i;

	if ((zfs_flags & ZFS_DEBUG_HISTOGRAM_VERIFY) == 0)
	return;

	mc_hist = kmem_zalloc(sizeof (uint64_t) * RANGE_TREE_HISTOGRAM_SIZE,
	KM_SLEEP);

	mutex_enter(&mc->mc_lock);
	for (int c = 0; c < rvd->vdev_children; c++) {
	vdev_t *tvd = rvd->vdev_child[c];
	metaslab_group_t *mg = vdev_get_mg(tvd, mc);

	/*
	* Skip any holes, uninitialized top-levels, or
	* vdevs that are not in this metalab class.
	*/
	if (!vdev_is_concrete(tvd) \|\| tvd->vdev_ms_shift == 0 \|\|
	mg->mg_class != mc) {
	continue;
	}

	IMPLY(mg == mg->mg_vd->vdev_log_mg,
	mc == spa_embedded_log_class(mg->mg_vd->vdev_spa));

	for (i = 0; i < RANGE_TREE_HISTOGRAM_SIZE; i++)
	mc_hist[i] += mg->mg_histogram[i];
	}

	for (i = 0; i < RANGE_TREE_HISTOGRAM_SIZE; i++) {
	VERIFY3U(mc_hist[i], ==, mc->mc_histogram[i]);
	}

	mutex_exit(&mc->mc_lock);
	kmem_free(mc_hist, sizeof (uint64_t) * RANGE_TREE_HISTOGRAM_SIZE);
	}

	/*
	* Calculate the metaslab class's fragmentation metric. The metric
	* is weighted based on the space contribution of each metaslab group.
	* The return value will be a number between 0 and 100 (inclusive), or
	* ZFS_FRAG_INVALID if the metric has not been set. See comment above the
	* zfs_frag_table for more information about the metric.
	*/
	uint64_t
	metaslab_class_fragmentation(metaslab_class_t *mc)
	{
	vdev_t *rvd = mc->mc_spa->spa_root_vdev;
	uint64_t fragmentation = 0;

	spa_config_enter(mc->mc_spa, SCL_VDEV, FTAG, RW_READER);

	for (int c = 0; c < rvd->vdev_children; c++) {
	vdev_t *tvd = rvd->vdev_child[c];
	metaslab_group_t *mg = tvd->vdev_mg;

	/*
	* Skip any holes, uninitialized top-levels,
	* or vdevs that are not in this metalab class.
	*/
	if (!vdev_is_concrete(tvd) \|\| tvd->vdev_ms_shift == 0 \|\|
	mg->mg_class != mc) {
	continue;
	}

	/*
	* If a metaslab group does not contain a fragmentation
	* metric then just bail out.
	*/
	if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
	spa_config_exit(mc->mc_spa, SCL_VDEV, FTAG);
	return (ZFS_FRAG_INVALID);
	}

	/*
	* Determine how much this metaslab_group is contributing
	* to the overall pool fragmentation metric.
	*/
	fragmentation += mg->mg_fragmentation *
	metaslab_group_get_space(mg);
	}
	fragmentation /= metaslab_class_get_space(mc);

	ASSERT3U(fragmentation, <=, 100);
	spa_config_exit(mc->mc_spa, SCL_VDEV, FTAG);
	return (fragmentation);
	}

	/*
	* Calculate the amount of expandable space that is available in
	* this metaslab class. If a device is expanded then its expandable
	* space will be the amount of allocatable space that is currently not
	* part of this metaslab class.
	*/
	uint64_t
	metaslab_class_expandable_space(metaslab_class_t *mc)
	{
	vdev_t *rvd = mc->mc_spa->spa_root_vdev;
	uint64_t space = 0;

	spa_config_enter(mc->mc_spa, SCL_VDEV, FTAG, RW_READER);
	for (int c = 0; c < rvd->vdev_children; c++) {
	vdev_t *tvd = rvd->vdev_child[c];
	metaslab_group_t *mg = tvd->vdev_mg;

	if (!vdev_is_concrete(tvd) \|\| tvd->vdev_ms_shift == 0 \|\|
	mg->mg_class != mc) {
	continue;
	}

	/*
	* Calculate if we have enough space to add additional
	* metaslabs. We report the expandable space in terms
	* of the metaslab size since that's the unit of expansion.
	*/
	space += P2ALIGN(tvd->vdev_max_asize - tvd->vdev_asize,
	1ULL << tvd->vdev_ms_shift);
	}
	spa_config_exit(mc->mc_spa, SCL_VDEV, FTAG);
	return (space);
	}

	void
	metaslab_class_evict_old(metaslab_class_t *mc, uint64_t txg)
	{
	- multilist_t *ml = mc->mc_metaslab_txg_list;
	+ multilist_t *ml = &mc->mc_metaslab_txg_list;
	for (int i = 0; i < multilist_get_num_sublists(ml); i++) {
	multilist_sublist_t *mls = multilist_sublist_lock(ml, i);
	metaslab_t *msp = multilist_sublist_head(mls);
	multilist_sublist_unlock(mls);
	while (msp != NULL) {
	mutex_enter(&msp->ms_lock);

	/*
	* If the metaslab has been removed from the list
	* (which could happen if we were at the memory limit
	* and it was evicted during this loop), then we can't
	* proceed and we should restart the sublist.
	*/
	if (!multilist_link_active(&msp->ms_class_txg_node)) {
	mutex_exit(&msp->ms_lock);
	i--;
	break;
	}
	mls = multilist_sublist_lock(ml, i);
	metaslab_t *next_msp = multilist_sublist_next(mls, msp);
	multilist_sublist_unlock(mls);
	if (txg >
	msp->ms_selected_txg + metaslab_unload_delay &&
	gethrtime() > msp->ms_selected_time +
	(uint64_t)MSEC2NSEC(metaslab_unload_delay_ms)) {
	metaslab_evict(msp, txg);
	} else {
	/*
	* Once we've hit a metaslab selected too
	* recently to evict, we're done evicting for
	* now.
	*/
	mutex_exit(&msp->ms_lock);
	break;
	}
	mutex_exit(&msp->ms_lock);
	msp = next_msp;
	}
	}
	}

	static int
	metaslab_compare(const void x1, const void x2)
	{
	const metaslab_t m1 = (const metaslab_t )x1;
	const metaslab_t m2 = (const metaslab_t )x2;

	int sort1 = 0;
	int sort2 = 0;
	if (m1->ms_allocator != -1 && m1->ms_primary)
	sort1 = 1;
	else if (m1->ms_allocator != -1 && !m1->ms_primary)
	sort1 = 2;
	if (m2->ms_allocator != -1 && m2->ms_primary)
	sort2 = 1;
	else if (m2->ms_allocator != -1 && !m2->ms_primary)
	sort2 = 2;

	/*
	* Sort inactive metaslabs first, then primaries, then secondaries. When
	* selecting a metaslab to allocate from, an allocator first tries its
	* primary, then secondary active metaslab. If it doesn't have active
	* metaslabs, or can't allocate from them, it searches for an inactive
	* metaslab to activate. If it can't find a suitable one, it will steal
	* a primary or secondary metaslab from another allocator.
	*/
	if (sort1 < sort2)
	return (-1);
	if (sort1 > sort2)
	return (1);

	int cmp = TREE_CMP(m2->ms_weight, m1->ms_weight);
	if (likely(cmp))
	return (cmp);

	IMPLY(TREE_CMP(m1->ms_start, m2->ms_start) == 0, m1 == m2);

	return (TREE_CMP(m1->ms_start, m2->ms_start));
	}

	/*
	* ==========================================================================
	* Metaslab groups
	* ==========================================================================
	*/
	/*
	* Update the allocatable flag and the metaslab group's capacity.
	* The allocatable flag is set to true if the capacity is below
	* the zfs_mg_noalloc_threshold or has a fragmentation value that is
	* greater than zfs_mg_fragmentation_threshold. If a metaslab group
	* transitions from allocatable to non-allocatable or vice versa then the
	* metaslab group's class is updated to reflect the transition.
	*/
	static void
	metaslab_group_alloc_update(metaslab_group_t *mg)
	{
	vdev_t *vd = mg->mg_vd;
	metaslab_class_t *mc = mg->mg_class;
	vdev_stat_t *vs = &vd->vdev_stat;
	boolean_t was_allocatable;
	boolean_t was_initialized;

	ASSERT(vd == vd->vdev_top);
	ASSERT3U(spa_config_held(mc->mc_spa, SCL_ALLOC, RW_READER), ==,
	SCL_ALLOC);

	mutex_enter(&mg->mg_lock);
	was_allocatable = mg->mg_allocatable;
	was_initialized = mg->mg_initialized;

	mg->mg_free_capacity = ((vs->vs_space - vs->vs_alloc) * 100) /
	(vs->vs_space + 1);

	mutex_enter(&mc->mc_lock);

	/*
	* If the metaslab group was just added then it won't
	* have any space until we finish syncing out this txg.
	* At that point we will consider it initialized and available
	* for allocations. We also don't consider non-activated
	* metaslab groups (e.g. vdevs that are in the middle of being removed)
	* to be initialized, because they can't be used for allocation.
	*/
	mg->mg_initialized = metaslab_group_initialized(mg);
	if (!was_initialized && mg->mg_initialized) {
	mc->mc_groups++;
	} else if (was_initialized && !mg->mg_initialized) {
	ASSERT3U(mc->mc_groups, >, 0);
	mc->mc_groups--;
	}
	if (mg->mg_initialized)
	mg->mg_no_free_space = B_FALSE;

	/*
	* A metaslab group is considered allocatable if it has plenty
	* of free space or is not heavily fragmented. We only take
	* fragmentation into account if the metaslab group has a valid
	* fragmentation metric (i.e. a value between 0 and 100).
	*/
	mg->mg_allocatable = (mg->mg_activation_count > 0 &&
	mg->mg_free_capacity > zfs_mg_noalloc_threshold &&
	(mg->mg_fragmentation == ZFS_FRAG_INVALID \|\|
	mg->mg_fragmentation <= zfs_mg_fragmentation_threshold));

	/*
	* The mc_alloc_groups maintains a count of the number of
	* groups in this metaslab class that are still above the
	* zfs_mg_noalloc_threshold. This is used by the allocating
	* threads to determine if they should avoid allocations to
	* a given group. The allocator will avoid allocations to a group
	* if that group has reached or is below the zfs_mg_noalloc_threshold
	* and there are still other groups that are above the threshold.
	* When a group transitions from allocatable to non-allocatable or
	* vice versa we update the metaslab class to reflect that change.
	* When the mc_alloc_groups value drops to 0 that means that all
	* groups have reached the zfs_mg_noalloc_threshold making all groups
	* eligible for allocations. This effectively means that all devices
	* are balanced again.
	*/
	if (was_allocatable && !mg->mg_allocatable)
	mc->mc_alloc_groups--;
	else if (!was_allocatable && mg->mg_allocatable)
	mc->mc_alloc_groups++;
	mutex_exit(&mc->mc_lock);

	mutex_exit(&mg->mg_lock);
	}

	int
	metaslab_sort_by_flushed(const void va, const void vb)
	{
	const metaslab_t *a = va;
	const metaslab_t *b = vb;

	int cmp = TREE_CMP(a->ms_unflushed_txg, b->ms_unflushed_txg);
	if (likely(cmp))
	return (cmp);

	uint64_t a_vdev_id = a->ms_group->mg_vd->vdev_id;
	uint64_t b_vdev_id = b->ms_group->mg_vd->vdev_id;
	cmp = TREE_CMP(a_vdev_id, b_vdev_id);
	if (cmp)
	return (cmp);

	return (TREE_CMP(a->ms_id, b->ms_id));
	}

	metaslab_group_t *
	metaslab_group_create(metaslab_class_t mc, vdev_t vd, int allocators)
	{
	metaslab_group_t *mg;

	mg = kmem_zalloc(offsetof(metaslab_group_t,
	mg_allocator[allocators]), KM_SLEEP);
	mutex_init(&mg->mg_lock, NULL, MUTEX_DEFAULT, NULL);
	mutex_init(&mg->mg_ms_disabled_lock, NULL, MUTEX_DEFAULT, NULL);
	cv_init(&mg->mg_ms_disabled_cv, NULL, CV_DEFAULT, NULL);
	avl_create(&mg->mg_metaslab_tree, metaslab_compare,
	sizeof (metaslab_t), offsetof(metaslab_t, ms_group_node));
	mg->mg_vd = vd;
	mg->mg_class = mc;
	mg->mg_activation_count = 0;
	mg->mg_initialized = B_FALSE;
	mg->mg_no_free_space = B_TRUE;
	mg->mg_allocators = allocators;

	for (int i = 0; i < allocators; i++) {
	metaslab_group_allocator_t *mga = &mg->mg_allocator[i];
	zfs_refcount_create_tracked(&mga->mga_alloc_queue_depth);
	}

	mg->mg_taskq = taskq_create("metaslab_group_taskq", metaslab_load_pct,
	maxclsyspri, 10, INT_MAX, TASKQ_THREADS_CPU_PCT \| TASKQ_DYNAMIC);

	return (mg);
	}

	void
	metaslab_group_destroy(metaslab_group_t *mg)
	{
	ASSERT(mg->mg_prev == NULL);
	ASSERT(mg->mg_next == NULL);
	/*
	* We may have gone below zero with the activation count
	* either because we never activated in the first place or
	* because we're done, and possibly removing the vdev.
	*/
	ASSERT(mg->mg_activation_count <= 0);

	taskq_destroy(mg->mg_taskq);
	avl_destroy(&mg->mg_metaslab_tree);
	mutex_destroy(&mg->mg_lock);
	mutex_destroy(&mg->mg_ms_disabled_lock);
	cv_destroy(&mg->mg_ms_disabled_cv);

	for (int i = 0; i < mg->mg_allocators; i++) {
	metaslab_group_allocator_t *mga = &mg->mg_allocator[i];
	zfs_refcount_destroy(&mga->mga_alloc_queue_depth);
	}
	kmem_free(mg, offsetof(metaslab_group_t,
	mg_allocator[mg->mg_allocators]));
	}

	void
	metaslab_group_activate(metaslab_group_t *mg)
	{
	metaslab_class_t *mc = mg->mg_class;
	spa_t *spa = mc->mc_spa;
	metaslab_group_t mgprev, mgnext;

	ASSERT3U(spa_config_held(spa, SCL_ALLOC, RW_WRITER), !=, 0);

	ASSERT(mg->mg_prev == NULL);
	ASSERT(mg->mg_next == NULL);
	ASSERT(mg->mg_activation_count <= 0);

	if (++mg->mg_activation_count <= 0)
	return;

	mg->mg_aliquot = metaslab_aliquot * MAX(1, mg->mg_vd->vdev_children);
	metaslab_group_alloc_update(mg);

	if ((mgprev = mc->mc_allocator[0].mca_rotor) == NULL) {
	mg->mg_prev = mg;
	mg->mg_next = mg;
	} else {
	mgnext = mgprev->mg_next;
	mg->mg_prev = mgprev;
	mg->mg_next = mgnext;
	mgprev->mg_next = mg;
	mgnext->mg_prev = mg;
	}
	for (int i = 0; i < spa->spa_alloc_count; i++) {
	mc->mc_allocator[i].mca_rotor = mg;
	mg = mg->mg_next;
	}
	}

	/*
	* Passivate a metaslab group and remove it from the allocation rotor.
	* Callers must hold both the SCL_ALLOC and SCL_ZIO lock prior to passivating
	* a metaslab group. This function will momentarily drop spa_config_locks
	* that are lower than the SCL_ALLOC lock (see comment below).
	*/
	void
	metaslab_group_passivate(metaslab_group_t *mg)
	{
	metaslab_class_t *mc = mg->mg_class;
	spa_t *spa = mc->mc_spa;
	metaslab_group_t mgprev, mgnext;
	int locks = spa_config_held(spa, SCL_ALL, RW_WRITER);

	ASSERT3U(spa_config_held(spa, SCL_ALLOC \| SCL_ZIO, RW_WRITER), ==,
	(SCL_ALLOC \| SCL_ZIO));

	if (--mg->mg_activation_count != 0) {
	for (int i = 0; i < spa->spa_alloc_count; i++)
	ASSERT(mc->mc_allocator[i].mca_rotor != mg);
	ASSERT(mg->mg_prev == NULL);
	ASSERT(mg->mg_next == NULL);
	ASSERT(mg->mg_activation_count < 0);
	return;
	}

	/*
	* The spa_config_lock is an array of rwlocks, ordered as
	* follows (from highest to lowest):
	* SCL_CONFIG > SCL_STATE > SCL_L2ARC > SCL_ALLOC >
	* SCL_ZIO > SCL_FREE > SCL_VDEV
	* (For more information about the spa_config_lock see spa_misc.c)
	* The higher the lock, the broader its coverage. When we passivate
	* a metaslab group, we must hold both the SCL_ALLOC and the SCL_ZIO
	* config locks. However, the metaslab group's taskq might be trying
	* to preload metaslabs so we must drop the SCL_ZIO lock and any
	* lower locks to allow the I/O to complete. At a minimum,
	* we continue to hold the SCL_ALLOC lock, which prevents any future
	* allocations from taking place and any changes to the vdev tree.
	*/
	spa_config_exit(spa, locks & ~(SCL_ZIO - 1), spa);
	taskq_wait_outstanding(mg->mg_taskq, 0);
	spa_config_enter(spa, locks & ~(SCL_ZIO - 1), spa, RW_WRITER);
	metaslab_group_alloc_update(mg);
	for (int i = 0; i < mg->mg_allocators; i++) {
	metaslab_group_allocator_t *mga = &mg->mg_allocator[i];
	metaslab_t *msp = mga->mga_primary;
	if (msp != NULL) {
	mutex_enter(&msp->ms_lock);
	metaslab_passivate(msp,
	metaslab_weight_from_range_tree(msp));
	mutex_exit(&msp->ms_lock);
	}
	msp = mga->mga_secondary;
	if (msp != NULL) {
	mutex_enter(&msp->ms_lock);
	metaslab_passivate(msp,
	metaslab_weight_from_range_tree(msp));
	mutex_exit(&msp->ms_lock);
	}
	}

	mgprev = mg->mg_prev;
	mgnext = mg->mg_next;

	if (mg == mgnext) {
	mgnext = NULL;
	} else {
	mgprev->mg_next = mgnext;
	mgnext->mg_prev = mgprev;
	}
	for (int i = 0; i < spa->spa_alloc_count; i++) {
	if (mc->mc_allocator[i].mca_rotor == mg)
	mc->mc_allocator[i].mca_rotor = mgnext;
	}

	mg->mg_prev = NULL;
	mg->mg_next = NULL;
	}

	boolean_t
	metaslab_group_initialized(metaslab_group_t *mg)
	{
	vdev_t *vd = mg->mg_vd;
	vdev_stat_t *vs = &vd->vdev_stat;

	return (vs->vs_space != 0 && mg->mg_activation_count > 0);
	}

	uint64_t
	metaslab_group_get_space(metaslab_group_t *mg)
	{
	/*
	* Note that the number of nodes in mg_metaslab_tree may be one less
	* than vdev_ms_count, due to the embedded log metaslab.
	*/
	mutex_enter(&mg->mg_lock);
	uint64_t ms_count = avl_numnodes(&mg->mg_metaslab_tree);
	mutex_exit(&mg->mg_lock);
	return ((1ULL << mg->mg_vd->vdev_ms_shift) * ms_count);
	}

	void
	metaslab_group_histogram_verify(metaslab_group_t *mg)
	{
	uint64_t *mg_hist;
	avl_tree_t *t = &mg->mg_metaslab_tree;
	uint64_t ashift = mg->mg_vd->vdev_ashift;

	if ((zfs_flags & ZFS_DEBUG_HISTOGRAM_VERIFY) == 0)
	return;

	mg_hist = kmem_zalloc(sizeof (uint64_t) * RANGE_TREE_HISTOGRAM_SIZE,
	KM_SLEEP);

	ASSERT3U(RANGE_TREE_HISTOGRAM_SIZE, >=,
	SPACE_MAP_HISTOGRAM_SIZE + ashift);

	mutex_enter(&mg->mg_lock);
	for (metaslab_t *msp = avl_first(t);
	msp != NULL; msp = AVL_NEXT(t, msp)) {
	VERIFY3P(msp->ms_group, ==, mg);
	/* skip if not active */
	if (msp->ms_sm == NULL)
	continue;

	for (int i = 0; i < SPACE_MAP_HISTOGRAM_SIZE; i++) {
	mg_hist[i + ashift] +=
	msp->ms_sm->sm_phys->smp_histogram[i];
	}
	}

	for (int i = 0; i < RANGE_TREE_HISTOGRAM_SIZE; i ++)
	VERIFY3U(mg_hist[i], ==, mg->mg_histogram[i]);

	mutex_exit(&mg->mg_lock);

	kmem_free(mg_hist, sizeof (uint64_t) * RANGE_TREE_HISTOGRAM_SIZE);
	}

	static void
	metaslab_group_histogram_add(metaslab_group_t mg, metaslab_t msp)
	{
	metaslab_class_t *mc = mg->mg_class;
	uint64_t ashift = mg->mg_vd->vdev_ashift;

	ASSERT(MUTEX_HELD(&msp->ms_lock));
	if (msp->ms_sm == NULL)
	return;

	mutex_enter(&mg->mg_lock);
	mutex_enter(&mc->mc_lock);
	for (int i = 0; i < SPACE_MAP_HISTOGRAM_SIZE; i++) {
	IMPLY(mg == mg->mg_vd->vdev_log_mg,
	mc == spa_embedded_log_class(mg->mg_vd->vdev_spa));
	mg->mg_histogram[i + ashift] +=
	msp->ms_sm->sm_phys->smp_histogram[i];
	mc->mc_histogram[i + ashift] +=
	msp->ms_sm->sm_phys->smp_histogram[i];
	}
	mutex_exit(&mc->mc_lock);
	mutex_exit(&mg->mg_lock);
	}

	void
	metaslab_group_histogram_remove(metaslab_group_t mg, metaslab_t msp)
	{
	metaslab_class_t *mc = mg->mg_class;
	uint64_t ashift = mg->mg_vd->vdev_ashift;

	ASSERT(MUTEX_HELD(&msp->ms_lock));
	if (msp->ms_sm == NULL)
	return;

	mutex_enter(&mg->mg_lock);
	mutex_enter(&mc->mc_lock);
	for (int i = 0; i < SPACE_MAP_HISTOGRAM_SIZE; i++) {
	ASSERT3U(mg->mg_histogram[i + ashift], >=,
	msp->ms_sm->sm_phys->smp_histogram[i]);
	ASSERT3U(mc->mc_histogram[i + ashift], >=,
	msp->ms_sm->sm_phys->smp_histogram[i]);
	IMPLY(mg == mg->mg_vd->vdev_log_mg,
	mc == spa_embedded_log_class(mg->mg_vd->vdev_spa));

	mg->mg_histogram[i + ashift] -=
	msp->ms_sm->sm_phys->smp_histogram[i];
	mc->mc_histogram[i + ashift] -=
	msp->ms_sm->sm_phys->smp_histogram[i];
	}
	mutex_exit(&mc->mc_lock);
	mutex_exit(&mg->mg_lock);
	}

	static void
	metaslab_group_add(metaslab_group_t mg, metaslab_t msp)
	{
	ASSERT(msp->ms_group == NULL);
	mutex_enter(&mg->mg_lock);
	msp->ms_group = mg;
	msp->ms_weight = 0;
	avl_add(&mg->mg_metaslab_tree, msp);
	mutex_exit(&mg->mg_lock);

	mutex_enter(&msp->ms_lock);
	metaslab_group_histogram_add(mg, msp);
	mutex_exit(&msp->ms_lock);
	}

	static void
	metaslab_group_remove(metaslab_group_t mg, metaslab_t msp)
	{
	mutex_enter(&msp->ms_lock);
	metaslab_group_histogram_remove(mg, msp);
	mutex_exit(&msp->ms_lock);

	mutex_enter(&mg->mg_lock);
	ASSERT(msp->ms_group == mg);
	avl_remove(&mg->mg_metaslab_tree, msp);

	metaslab_class_t *mc = msp->ms_group->mg_class;
	multilist_sublist_t *mls =
	- multilist_sublist_lock_obj(mc->mc_metaslab_txg_list, msp);
	+ multilist_sublist_lock_obj(&mc->mc_metaslab_txg_list, msp);
	if (multilist_link_active(&msp->ms_class_txg_node))
	multilist_sublist_remove(mls, msp);
	multilist_sublist_unlock(mls);

	msp->ms_group = NULL;
	mutex_exit(&mg->mg_lock);
	}

	static void
	metaslab_group_sort_impl(metaslab_group_t mg, metaslab_t msp, uint64_t weight)
	{
	ASSERT(MUTEX_HELD(&msp->ms_lock));
	ASSERT(MUTEX_HELD(&mg->mg_lock));
	ASSERT(msp->ms_group == mg);

	avl_remove(&mg->mg_metaslab_tree, msp);
	msp->ms_weight = weight;
	avl_add(&mg->mg_metaslab_tree, msp);

	}

	static void
	metaslab_group_sort(metaslab_group_t mg, metaslab_t msp, uint64_t weight)
	{
	/*
	* Although in principle the weight can be any value, in
	* practice we do not use values in the range [1, 511].
	*/
	ASSERT(weight >= SPA_MINBLOCKSIZE \|\| weight == 0);
	ASSERT(MUTEX_HELD(&msp->ms_lock));

	mutex_enter(&mg->mg_lock);
	metaslab_group_sort_impl(mg, msp, weight);
	mutex_exit(&mg->mg_lock);
	}

	/*
	* Calculate the fragmentation for a given metaslab group. We can use
	* a simple average here since all metaslabs within the group must have
	* the same size. The return value will be a value between 0 and 100
	* (inclusive), or ZFS_FRAG_INVALID if less than half of the metaslab in this
	* group have a fragmentation metric.
	*/
	uint64_t
	metaslab_group_fragmentation(metaslab_group_t *mg)
	{
	vdev_t *vd = mg->mg_vd;
	uint64_t fragmentation = 0;
	uint64_t valid_ms = 0;

	for (int m = 0; m < vd->vdev_ms_count; m++) {
	metaslab_t *msp = vd->vdev_ms[m];

	if (msp->ms_fragmentation == ZFS_FRAG_INVALID)
	continue;
	if (msp->ms_group != mg)
	continue;

	valid_ms++;
	fragmentation += msp->ms_fragmentation;
	}

	if (valid_ms <= mg->mg_vd->vdev_ms_count / 2)
	return (ZFS_FRAG_INVALID);

	fragmentation /= valid_ms;
	ASSERT3U(fragmentation, <=, 100);
	return (fragmentation);
	}

	/*
	* Determine if a given metaslab group should skip allocations. A metaslab
	* group should avoid allocations if its free capacity is less than the
	* zfs_mg_noalloc_threshold or its fragmentation metric is greater than
	* zfs_mg_fragmentation_threshold and there is at least one metaslab group
	* that can still handle allocations. If the allocation throttle is enabled
	* then we skip allocations to devices that have reached their maximum
	* allocation queue depth unless the selected metaslab group is the only
	* eligible group remaining.
	*/
	static boolean_t
	metaslab_group_allocatable(metaslab_group_t mg, metaslab_group_t rotor,
	uint64_t psize, int allocator, int d)
	{
	spa_t *spa = mg->mg_vd->vdev_spa;
	metaslab_class_t *mc = mg->mg_class;

	/*
	* We can only consider skipping this metaslab group if it's
	* in the normal metaslab class and there are other metaslab
	* groups to select from. Otherwise, we always consider it eligible
	* for allocations.
	*/
	if ((mc != spa_normal_class(spa) &&
	mc != spa_special_class(spa) &&
	mc != spa_dedup_class(spa)) \|\|
	mc->mc_groups <= 1)
	return (B_TRUE);

	/*
	* If the metaslab group's mg_allocatable flag is set (see comments
	* in metaslab_group_alloc_update() for more information) and
	* the allocation throttle is disabled then allow allocations to this
	* device. However, if the allocation throttle is enabled then
	* check if we have reached our allocation limit (mga_alloc_queue_depth)
	* to determine if we should allow allocations to this metaslab group.
	* If all metaslab groups are no longer considered allocatable
	* (mc_alloc_groups == 0) or we're trying to allocate the smallest
	* gang block size then we allow allocations on this metaslab group
	* regardless of the mg_allocatable or throttle settings.
	*/
	if (mg->mg_allocatable) {
	metaslab_group_allocator_t *mga = &mg->mg_allocator[allocator];
	int64_t qdepth;
	uint64_t qmax = mga->mga_cur_max_alloc_queue_depth;

	if (!mc->mc_alloc_throttle_enabled)
	return (B_TRUE);

	/*
	* If this metaslab group does not have any free space, then
	* there is no point in looking further.
	*/
	if (mg->mg_no_free_space)
	return (B_FALSE);

	/*
	* Relax allocation throttling for ditto blocks. Due to
	* random imbalances in allocation it tends to push copies
	* to one vdev, that looks a bit better at the moment.
	*/
	qmax = qmax * (4 + d) / 4;

	qdepth = zfs_refcount_count(&mga->mga_alloc_queue_depth);

	/*
	* If this metaslab group is below its qmax or it's
	* the only allocatable metasable group, then attempt
	* to allocate from it.
	*/
	if (qdepth < qmax \|\| mc->mc_alloc_groups == 1)
	return (B_TRUE);
	ASSERT3U(mc->mc_alloc_groups, >, 1);

	/*
	* Since this metaslab group is at or over its qmax, we
	* need to determine if there are metaslab groups after this
	* one that might be able to handle this allocation. This is
	* racy since we can't hold the locks for all metaslab
	* groups at the same time when we make this check.
	*/
	for (metaslab_group_t *mgp = mg->mg_next;
	mgp != rotor; mgp = mgp->mg_next) {
	metaslab_group_allocator_t *mgap =
	&mgp->mg_allocator[allocator];
	qmax = mgap->mga_cur_max_alloc_queue_depth;
	qmax = qmax * (4 + d) / 4;
	qdepth =
	zfs_refcount_count(&mgap->mga_alloc_queue_depth);

	/*
	* If there is another metaslab group that
	* might be able to handle the allocation, then
	* we return false so that we skip this group.
	*/
	if (qdepth < qmax && !mgp->mg_no_free_space)
	return (B_FALSE);
	}

	/*
	* We didn't find another group to handle the allocation
	* so we can't skip this metaslab group even though
	* we are at or over our qmax.
	*/
	return (B_TRUE);

	} else if (mc->mc_alloc_groups == 0 \|\| psize == SPA_MINBLOCKSIZE) {
	return (B_TRUE);
	}
	return (B_FALSE);
	}

	/*
	* ==========================================================================
	* Range tree callbacks
	* ==========================================================================
	*/

	/*
	* Comparison function for the private size-ordered tree using 32-bit
	* ranges. Tree is sorted by size, larger sizes at the end of the tree.
	*/
	static int
	metaslab_rangesize32_compare(const void x1, const void x2)
	{
	const range_seg32_t *r1 = x1;
	const range_seg32_t *r2 = x2;

	uint64_t rs_size1 = r1->rs_end - r1->rs_start;
	uint64_t rs_size2 = r2->rs_end - r2->rs_start;

	int cmp = TREE_CMP(rs_size1, rs_size2);
	if (likely(cmp))
	return (cmp);

	return (TREE_CMP(r1->rs_start, r2->rs_start));
	}

	/*
	* Comparison function for the private size-ordered tree using 64-bit
	* ranges. Tree is sorted by size, larger sizes at the end of the tree.
	*/
	static int
	metaslab_rangesize64_compare(const void x1, const void x2)
	{
	const range_seg64_t *r1 = x1;
	const range_seg64_t *r2 = x2;

	uint64_t rs_size1 = r1->rs_end - r1->rs_start;
	uint64_t rs_size2 = r2->rs_end - r2->rs_start;

	int cmp = TREE_CMP(rs_size1, rs_size2);
	if (likely(cmp))
	return (cmp);

	return (TREE_CMP(r1->rs_start, r2->rs_start));
	}
	typedef struct metaslab_rt_arg {
	zfs_btree_t *mra_bt;
	uint32_t mra_floor_shift;
	} metaslab_rt_arg_t;

	struct mssa_arg {
	range_tree_t *rt;
	metaslab_rt_arg_t *mra;
	};

	static void
	metaslab_size_sorted_add(void *arg, uint64_t start, uint64_t size)
	{
	struct mssa_arg *mssap = arg;
	range_tree_t *rt = mssap->rt;
	metaslab_rt_arg_t *mrap = mssap->mra;
	range_seg_max_t seg = {0};
	rs_set_start(&seg, rt, start);
	rs_set_end(&seg, rt, start + size);
	metaslab_rt_add(rt, &seg, mrap);
	}

	static void
	metaslab_size_tree_full_load(range_tree_t *rt)
	{
	metaslab_rt_arg_t *mrap = rt->rt_arg;
	METASLABSTAT_BUMP(metaslabstat_reload_tree);
	ASSERT0(zfs_btree_numnodes(mrap->mra_bt));
	mrap->mra_floor_shift = 0;
	struct mssa_arg arg = {0};
	arg.rt = rt;
	arg.mra = mrap;
	range_tree_walk(rt, metaslab_size_sorted_add, &arg);
	}

	/*
	* Create any block allocator specific components. The current allocators
	* rely on using both a size-ordered range_tree_t and an array of uint64_t's.
	*/
	/* ARGSUSED */
	static void
	metaslab_rt_create(range_tree_t rt, void arg)
	{
	metaslab_rt_arg_t *mrap = arg;
	zfs_btree_t *size_tree = mrap->mra_bt;

	size_t size;
	int (compare) (const void , const void *);
	switch (rt->rt_type) {
	case RANGE_SEG32:
	size = sizeof (range_seg32_t);
	compare = metaslab_rangesize32_compare;
	break;
	case RANGE_SEG64:
	size = sizeof (range_seg64_t);
	compare = metaslab_rangesize64_compare;
	break;
	default:
	panic("Invalid range seg type %d", rt->rt_type);
	}
	zfs_btree_create(size_tree, compare, size);
	mrap->mra_floor_shift = metaslab_by_size_min_shift;
	}

	/* ARGSUSED */
	static void
	metaslab_rt_destroy(range_tree_t rt, void arg)
	{
	metaslab_rt_arg_t *mrap = arg;
	zfs_btree_t *size_tree = mrap->mra_bt;

	zfs_btree_destroy(size_tree);
	kmem_free(mrap, sizeof (*mrap));
	}

	/* ARGSUSED */
	static void
	metaslab_rt_add(range_tree_t rt, range_seg_t rs, void *arg)
	{
	metaslab_rt_arg_t *mrap = arg;
	zfs_btree_t *size_tree = mrap->mra_bt;

	if (rs_get_end(rs, rt) - rs_get_start(rs, rt) <
	(1 << mrap->mra_floor_shift))
	return;

	zfs_btree_add(size_tree, rs);
	}

	/* ARGSUSED */
	static void
	metaslab_rt_remove(range_tree_t rt, range_seg_t rs, void *arg)
	{
	metaslab_rt_arg_t *mrap = arg;
	zfs_btree_t *size_tree = mrap->mra_bt;

	if (rs_get_end(rs, rt) - rs_get_start(rs, rt) < (1 <<
	mrap->mra_floor_shift))
	return;

	zfs_btree_remove(size_tree, rs);
	}

	/* ARGSUSED */
	static void
	metaslab_rt_vacate(range_tree_t rt, void arg)
	{
	metaslab_rt_arg_t *mrap = arg;
	zfs_btree_t *size_tree = mrap->mra_bt;
	zfs_btree_clear(size_tree);
	zfs_btree_destroy(size_tree);

	metaslab_rt_create(rt, arg);
	}

	static range_tree_ops_t metaslab_rt_ops = {
	.rtop_create = metaslab_rt_create,
	.rtop_destroy = metaslab_rt_destroy,
	.rtop_add = metaslab_rt_add,
	.rtop_remove = metaslab_rt_remove,
	.rtop_vacate = metaslab_rt_vacate
	};

	/*
	* ==========================================================================
	* Common allocator routines
	* ==========================================================================
	*/

	/*
	* Return the maximum contiguous segment within the metaslab.
	*/
	uint64_t
	metaslab_largest_allocatable(metaslab_t *msp)
	{
	zfs_btree_t *t = &msp->ms_allocatable_by_size;
	range_seg_t *rs;

	if (t == NULL)
	return (0);
	if (zfs_btree_numnodes(t) == 0)
	metaslab_size_tree_full_load(msp->ms_allocatable);

	rs = zfs_btree_last(t, NULL);
	if (rs == NULL)
	return (0);

	return (rs_get_end(rs, msp->ms_allocatable) - rs_get_start(rs,
	msp->ms_allocatable));
	}

	/*
	* Return the maximum contiguous segment within the unflushed frees of this
	* metaslab.
	*/
	static uint64_t
	metaslab_largest_unflushed_free(metaslab_t *msp)
	{
	ASSERT(MUTEX_HELD(&msp->ms_lock));

	if (msp->ms_unflushed_frees == NULL)
	return (0);

	if (zfs_btree_numnodes(&msp->ms_unflushed_frees_by_size) == 0)
	metaslab_size_tree_full_load(msp->ms_unflushed_frees);
	range_seg_t *rs = zfs_btree_last(&msp->ms_unflushed_frees_by_size,
	NULL);
	if (rs == NULL)
	return (0);

	/*
	* When a range is freed from the metaslab, that range is added to
	* both the unflushed frees and the deferred frees. While the block
	* will eventually be usable, if the metaslab were loaded the range
	* would not be added to the ms_allocatable tree until TXG_DEFER_SIZE
	* txgs had passed. As a result, when attempting to estimate an upper
	* bound for the largest currently-usable free segment in the
	* metaslab, we need to not consider any ranges currently in the defer
	* trees. This algorithm approximates the largest available chunk in
	* the largest range in the unflushed_frees tree by taking the first
	* chunk. While this may be a poor estimate, it should only remain so
	* briefly and should eventually self-correct as frees are no longer
	* deferred. Similar logic applies to the ms_freed tree. See
	* metaslab_load() for more details.
	*
	* There are two primary sources of inaccuracy in this estimate. Both
	* are tolerated for performance reasons. The first source is that we
	* only check the largest segment for overlaps. Smaller segments may
	* have more favorable overlaps with the other trees, resulting in
	* larger usable chunks. Second, we only look at the first chunk in
	* the largest segment; there may be other usable chunks in the
	* largest segment, but we ignore them.
	*/
	uint64_t rstart = rs_get_start(rs, msp->ms_unflushed_frees);
	uint64_t rsize = rs_get_end(rs, msp->ms_unflushed_frees) - rstart;
	for (int t = 0; t < TXG_DEFER_SIZE; t++) {
	uint64_t start = 0;
	uint64_t size = 0;
	boolean_t found = range_tree_find_in(msp->ms_defer[t], rstart,
	rsize, &start, &size);
	if (found) {
	if (rstart == start)
	return (0);
	rsize = start - rstart;
	}
	}

	uint64_t start = 0;
	uint64_t size = 0;
	boolean_t found = range_tree_find_in(msp->ms_freed, rstart,
	rsize, &start, &size);
	if (found)
	rsize = start - rstart;

	return (rsize);
	}

	static range_seg_t *
	metaslab_block_find(zfs_btree_t t, range_tree_t rt, uint64_t start,
	uint64_t size, zfs_btree_index_t *where)
	{
	range_seg_t *rs;
	range_seg_max_t rsearch;

	rs_set_start(&rsearch, rt, start);
	rs_set_end(&rsearch, rt, start + size);

	rs = zfs_btree_find(t, &rsearch, where);
	if (rs == NULL) {
	rs = zfs_btree_next(t, where, where);
	}

	return (rs);
	}

	#if defined(WITH_DF_BLOCK_ALLOCATOR) \|\| \
	defined(WITH_CF_BLOCK_ALLOCATOR)

	/*
	* This is a helper function that can be used by the allocator to find a
	* suitable block to allocate. This will search the specified B-tree looking
	* for a block that matches the specified criteria.
	*/
	static uint64_t
	metaslab_block_picker(range_tree_t rt, uint64_t cursor, uint64_t size,
	uint64_t max_search)
	{
	if (*cursor == 0)
	*cursor = rt->rt_start;
	zfs_btree_t *bt = &rt->rt_root;
	zfs_btree_index_t where;
	range_seg_t rs = metaslab_block_find(bt, rt, cursor, size, &where);
	uint64_t first_found;
	int count_searched = 0;

	if (rs != NULL)
	first_found = rs_get_start(rs, rt);

	while (rs != NULL && (rs_get_start(rs, rt) - first_found <=
	max_search \|\| count_searched < metaslab_min_search_count)) {
	uint64_t offset = rs_get_start(rs, rt);
	if (offset + size <= rs_get_end(rs, rt)) {
	*cursor = offset + size;
	return (offset);
	}
	rs = zfs_btree_next(bt, &where, &where);
	count_searched++;
	}

	*cursor = 0;
	return (-1ULL);
	}
	#endif /* WITH_DF/CF_BLOCK_ALLOCATOR */

	#if defined(WITH_DF_BLOCK_ALLOCATOR)
	/*
	* ==========================================================================
	* Dynamic Fit (df) block allocator
	*
	* Search for a free chunk of at least this size, starting from the last
	* offset (for this alignment of block) looking for up to
	* metaslab_df_max_search bytes (16MB). If a large enough free chunk is not
	* found within 16MB, then return a free chunk of exactly the requested size (or
	* larger).
	*
	* If it seems like searching from the last offset will be unproductive, skip
	* that and just return a free chunk of exactly the requested size (or larger).
	* This is based on metaslab_df_alloc_threshold and metaslab_df_free_pct. This
	* mechanism is probably not very useful and may be removed in the future.
	*
	* The behavior when not searching can be changed to return the largest free
	* chunk, instead of a free chunk of exactly the requested size, by setting
	* metaslab_df_use_largest_segment.
	* ==========================================================================
	*/
	static uint64_t
	metaslab_df_alloc(metaslab_t *msp, uint64_t size)
	{
	/*
	* Find the largest power of 2 block size that evenly divides the
	* requested size. This is used to try to allocate blocks with similar
	* alignment from the same area of the metaslab (i.e. same cursor
	* bucket) but it does not guarantee that other allocations sizes
	* may exist in the same region.
	*/
	uint64_t align = size & -size;
	uint64_t *cursor = &msp->ms_lbas[highbit64(align) - 1];
	range_tree_t *rt = msp->ms_allocatable;
	int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
	uint64_t offset;

	ASSERT(MUTEX_HELD(&msp->ms_lock));

	/*
	* If we're running low on space, find a segment based on size,
	* rather than iterating based on offset.
	*/
	if (metaslab_largest_allocatable(msp) < metaslab_df_alloc_threshold \|\|
	free_pct < metaslab_df_free_pct) {
	offset = -1;
	} else {
	offset = metaslab_block_picker(rt,
	cursor, size, metaslab_df_max_search);
	}

	if (offset == -1) {
	range_seg_t *rs;
	if (zfs_btree_numnodes(&msp->ms_allocatable_by_size) == 0)
	metaslab_size_tree_full_load(msp->ms_allocatable);

	if (metaslab_df_use_largest_segment) {
	/* use largest free segment */
	rs = zfs_btree_last(&msp->ms_allocatable_by_size, NULL);
	} else {
	zfs_btree_index_t where;
	/* use segment of this size, or next largest */
	rs = metaslab_block_find(&msp->ms_allocatable_by_size,
	rt, msp->ms_start, size, &where);
	}
	if (rs != NULL && rs_get_start(rs, rt) + size <= rs_get_end(rs,
	rt)) {
	offset = rs_get_start(rs, rt);
	*cursor = offset + size;
	}
	}

	return (offset);
	}

	static metaslab_ops_t metaslab_df_ops = {
	metaslab_df_alloc
	};

	metaslab_ops_t *zfs_metaslab_ops = &metaslab_df_ops;
	#endif /* WITH_DF_BLOCK_ALLOCATOR */

	#if defined(WITH_CF_BLOCK_ALLOCATOR)
	/*
	* ==========================================================================
	* Cursor fit block allocator -
	* Select the largest region in the metaslab, set the cursor to the beginning
	* of the range and the cursor_end to the end of the range. As allocations
	* are made advance the cursor. Continue allocating from the cursor until
	* the range is exhausted and then find a new range.
	* ==========================================================================
	*/
	static uint64_t
	metaslab_cf_alloc(metaslab_t *msp, uint64_t size)
	{
	range_tree_t *rt = msp->ms_allocatable;
	zfs_btree_t *t = &msp->ms_allocatable_by_size;
	uint64_t *cursor = &msp->ms_lbas[0];
	uint64_t *cursor_end = &msp->ms_lbas[1];
	uint64_t offset = 0;

	ASSERT(MUTEX_HELD(&msp->ms_lock));

	ASSERT3U(cursor_end, >=, cursor);

	if ((cursor + size) > cursor_end) {
	range_seg_t *rs;

	if (zfs_btree_numnodes(t) == 0)
	metaslab_size_tree_full_load(msp->ms_allocatable);
	rs = zfs_btree_last(t, NULL);
	if (rs == NULL \|\| (rs_get_end(rs, rt) - rs_get_start(rs, rt)) <
	size)
	return (-1ULL);

	*cursor = rs_get_start(rs, rt);
	*cursor_end = rs_get_end(rs, rt);
	}

	offset = *cursor;
	*cursor += size;

	return (offset);
	}

	static metaslab_ops_t metaslab_cf_ops = {
	metaslab_cf_alloc
	};

	metaslab_ops_t *zfs_metaslab_ops = &metaslab_cf_ops;
	#endif /* WITH_CF_BLOCK_ALLOCATOR */

	#if defined(WITH_NDF_BLOCK_ALLOCATOR)
	/*
	* ==========================================================================
	* New dynamic fit allocator -
	* Select a region that is large enough to allocate 2^metaslab_ndf_clump_shift
	* contiguous blocks. If no region is found then just use the largest segment
	* that remains.
	* ==========================================================================
	*/

	/*
	* Determines desired number of contiguous blocks (2^metaslab_ndf_clump_shift)
	* to request from the allocator.
	*/
	uint64_t metaslab_ndf_clump_shift = 4;

	static uint64_t
	metaslab_ndf_alloc(metaslab_t *msp, uint64_t size)
	{
	zfs_btree_t *t = &msp->ms_allocatable->rt_root;
	range_tree_t *rt = msp->ms_allocatable;
	zfs_btree_index_t where;
	range_seg_t *rs;
	range_seg_max_t rsearch;
	uint64_t hbit = highbit64(size);
	uint64_t *cursor = &msp->ms_lbas[hbit - 1];
	uint64_t max_size = metaslab_largest_allocatable(msp);

	ASSERT(MUTEX_HELD(&msp->ms_lock));

	if (max_size < size)
	return (-1ULL);

	rs_set_start(&rsearch, rt, *cursor);
	rs_set_end(&rsearch, rt, *cursor + size);

	rs = zfs_btree_find(t, &rsearch, &where);
	if (rs == NULL \|\| (rs_get_end(rs, rt) - rs_get_start(rs, rt)) < size) {
	t = &msp->ms_allocatable_by_size;

	rs_set_start(&rsearch, rt, 0);
	rs_set_end(&rsearch, rt, MIN(max_size, 1ULL << (hbit +
	metaslab_ndf_clump_shift)));

	rs = zfs_btree_find(t, &rsearch, &where);
	if (rs == NULL)
	rs = zfs_btree_next(t, &where, &where);
	ASSERT(rs != NULL);
	}

	if ((rs_get_end(rs, rt) - rs_get_start(rs, rt)) >= size) {
	*cursor = rs_get_start(rs, rt) + size;
	return (rs_get_start(rs, rt));
	}
	return (-1ULL);
	}

	static metaslab_ops_t metaslab_ndf_ops = {
	metaslab_ndf_alloc
	};

	metaslab_ops_t *zfs_metaslab_ops = &metaslab_ndf_ops;
	#endif /* WITH_NDF_BLOCK_ALLOCATOR */


	/*
	* ==========================================================================
	* Metaslabs
	* ==========================================================================
	*/

	/*
	* Wait for any in-progress metaslab loads to complete.
	*/
	static void
	metaslab_load_wait(metaslab_t *msp)
	{
	ASSERT(MUTEX_HELD(&msp->ms_lock));

	while (msp->ms_loading) {
	ASSERT(!msp->ms_loaded);
	cv_wait(&msp->ms_load_cv, &msp->ms_lock);
	}
	}

	/*
	* Wait for any in-progress flushing to complete.
	*/
	static void
	metaslab_flush_wait(metaslab_t *msp)
	{
	ASSERT(MUTEX_HELD(&msp->ms_lock));

	while (msp->ms_flushing)
	cv_wait(&msp->ms_flush_cv, &msp->ms_lock);
	}

	static unsigned int
	metaslab_idx_func(multilist_t ml, void arg)
	{
	metaslab_t *msp = arg;
	return (msp->ms_id % multilist_get_num_sublists(ml));
	}

	uint64_t
	metaslab_allocated_space(metaslab_t *msp)
	{
	return (msp->ms_allocated_space);
	}

	/*
	* Verify that the space accounting on disk matches the in-core range_trees.
	*/
	static void
	metaslab_verify_space(metaslab_t *msp, uint64_t txg)
	{
	spa_t *spa = msp->ms_group->mg_vd->vdev_spa;
	uint64_t allocating = 0;
	uint64_t sm_free_space, msp_free_space;

	ASSERT(MUTEX_HELD(&msp->ms_lock));
	ASSERT(!msp->ms_condensing);

	if ((zfs_flags & ZFS_DEBUG_METASLAB_VERIFY) == 0)
	return;

	/*
	* We can only verify the metaslab space when we're called
	* from syncing context with a loaded metaslab that has an
	* allocated space map. Calling this in non-syncing context
	* does not provide a consistent view of the metaslab since
	* we're performing allocations in the future.
	*/
	if (txg != spa_syncing_txg(spa) \|\| msp->ms_sm == NULL \|\|
	!msp->ms_loaded)
	return;

	/*
	* Even though the smp_alloc field can get negative,
	* when it comes to a metaslab's space map, that should
	* never be the case.
	*/
	ASSERT3S(space_map_allocated(msp->ms_sm), >=, 0);

	ASSERT3U(space_map_allocated(msp->ms_sm), >=,
	range_tree_space(msp->ms_unflushed_frees));

	ASSERT3U(metaslab_allocated_space(msp), ==,
	space_map_allocated(msp->ms_sm) +
	range_tree_space(msp->ms_unflushed_allocs) -
	range_tree_space(msp->ms_unflushed_frees));

	sm_free_space = msp->ms_size - metaslab_allocated_space(msp);

	/*
	* Account for future allocations since we would have
	* already deducted that space from the ms_allocatable.
	*/
	for (int t = 0; t < TXG_CONCURRENT_STATES; t++) {
	allocating +=
	range_tree_space(msp->ms_allocating[(txg + t) & TXG_MASK]);
	}
	ASSERT3U(allocating + msp->ms_allocated_this_txg, ==,
	msp->ms_allocating_total);

	ASSERT3U(msp->ms_deferspace, ==,
	range_tree_space(msp->ms_defer[0]) +
	range_tree_space(msp->ms_defer[1]));

	msp_free_space = range_tree_space(msp->ms_allocatable) + allocating +
	msp->ms_deferspace + range_tree_space(msp->ms_freed);

	VERIFY3U(sm_free_space, ==, msp_free_space);
	}

	static void
	metaslab_aux_histograms_clear(metaslab_t *msp)
	{
	/*
	* Auxiliary histograms are only cleared when resetting them,
	* which can only happen while the metaslab is loaded.
	*/
	ASSERT(msp->ms_loaded);

	bzero(msp->ms_synchist, sizeof (msp->ms_synchist));
	for (int t = 0; t < TXG_DEFER_SIZE; t++)
	bzero(msp->ms_deferhist[t], sizeof (msp->ms_deferhist[t]));
	}

	static void
	metaslab_aux_histogram_add(uint64_t *histogram, uint64_t shift,
	range_tree_t *rt)
	{
	/*
	* This is modeled after space_map_histogram_add(), so refer to that
	* function for implementation details. We want this to work like
	* the space map histogram, and not the range tree histogram, as we
	* are essentially constructing a delta that will be later subtracted
	* from the space map histogram.
	*/
	int idx = 0;
	for (int i = shift; i < RANGE_TREE_HISTOGRAM_SIZE; i++) {
	ASSERT3U(i, >=, idx + shift);
	histogram[idx] += rt->rt_histogram[i] << (i - idx - shift);

	if (idx < SPACE_MAP_HISTOGRAM_SIZE - 1) {
	ASSERT3U(idx + shift, ==, i);
	idx++;
	ASSERT3U(idx, <, SPACE_MAP_HISTOGRAM_SIZE);
	}
	}
	}

	/*
	* Called at every sync pass that the metaslab gets synced.
	*
	* The reason is that we want our auxiliary histograms to be updated
	* wherever the metaslab's space map histogram is updated. This way
	* we stay consistent on which parts of the metaslab space map's
	* histogram are currently not available for allocations (e.g because
	* they are in the defer, freed, and freeing trees).
	*/
	static void
	metaslab_aux_histograms_update(metaslab_t *msp)
	{
	space_map_t *sm = msp->ms_sm;
	ASSERT(sm != NULL);

	/*
	* This is similar to the metaslab's space map histogram updates
	* that take place in metaslab_sync(). The only difference is that
	* we only care about segments that haven't made it into the
	* ms_allocatable tree yet.
	*/
	if (msp->ms_loaded) {
	metaslab_aux_histograms_clear(msp);

	metaslab_aux_histogram_add(msp->ms_synchist,
	sm->sm_shift, msp->ms_freed);

	for (int t = 0; t < TXG_DEFER_SIZE; t++) {
	metaslab_aux_histogram_add(msp->ms_deferhist[t],
	sm->sm_shift, msp->ms_defer[t]);
	}
	}

	metaslab_aux_histogram_add(msp->ms_synchist,
	sm->sm_shift, msp->ms_freeing);
	}

	/*
	* Called every time we are done syncing (writing to) the metaslab,
	* i.e. at the end of each sync pass.
	* [see the comment in metaslab_impl.h for ms_synchist, ms_deferhist]
	*/
	static void
	metaslab_aux_histograms_update_done(metaslab_t *msp, boolean_t defer_allowed)
	{
	spa_t *spa = msp->ms_group->mg_vd->vdev_spa;
	space_map_t *sm = msp->ms_sm;

	if (sm == NULL) {
	/*
	* We came here from metaslab_init() when creating/opening a
	* pool, looking at a metaslab that hasn't had any allocations
	* yet.
	*/
	return;
	}

	/*
	* This is similar to the actions that we take for the ms_freed
	* and ms_defer trees in metaslab_sync_done().
	*/
	uint64_t hist_index = spa_syncing_txg(spa) % TXG_DEFER_SIZE;
	if (defer_allowed) {
	bcopy(msp->ms_synchist, msp->ms_deferhist[hist_index],
	sizeof (msp->ms_synchist));
	} else {
	bzero(msp->ms_deferhist[hist_index],
	sizeof (msp->ms_deferhist[hist_index]));
	}
	bzero(msp->ms_synchist, sizeof (msp->ms_synchist));
	}

	/*
	* Ensure that the metaslab's weight and fragmentation are consistent
	* with the contents of the histogram (either the range tree's histogram
	* or the space map's depending whether the metaslab is loaded).
	*/
	static void
	metaslab_verify_weight_and_frag(metaslab_t *msp)
	{
	ASSERT(MUTEX_HELD(&msp->ms_lock));

	if ((zfs_flags & ZFS_DEBUG_METASLAB_VERIFY) == 0)
	return;

	/*
	* We can end up here from vdev_remove_complete(), in which case we
	* cannot do these assertions because we hold spa config locks and
	* thus we are not allowed to read from the DMU.
	*
	* We check if the metaslab group has been removed and if that's
	* the case we return immediately as that would mean that we are
	* here from the aforementioned code path.
	*/
	if (msp->ms_group == NULL)
	return;

	/*
	* Devices being removed always return a weight of 0 and leave
	* fragmentation and ms_max_size as is - there is nothing for
	* us to verify here.
	*/
	vdev_t *vd = msp->ms_group->mg_vd;
	if (vd->vdev_removing)
	return;

	/*
	* If the metaslab is dirty it probably means that we've done
	* some allocations or frees that have changed our histograms
	* and thus the weight.
	*/
	for (int t = 0; t < TXG_SIZE; t++) {
	if (txg_list_member(&vd->vdev_ms_list, msp, t))
	return;
	}

	/*
	* This verification checks that our in-memory state is consistent
	* with what's on disk. If the pool is read-only then there aren't
	* any changes and we just have the initially-loaded state.
	*/
	if (!spa_writeable(msp->ms_group->mg_vd->vdev_spa))
	return;

	/* some extra verification for in-core tree if you can */
	if (msp->ms_loaded) {
	range_tree_stat_verify(msp->ms_allocatable);
	VERIFY(space_map_histogram_verify(msp->ms_sm,
	msp->ms_allocatable));
	}

	uint64_t weight = msp->ms_weight;
	uint64_t was_active = msp->ms_weight & METASLAB_ACTIVE_MASK;
	boolean_t space_based = WEIGHT_IS_SPACEBASED(msp->ms_weight);
	uint64_t frag = msp->ms_fragmentation;
	uint64_t max_segsize = msp->ms_max_size;

	msp->ms_weight = 0;
	msp->ms_fragmentation = 0;

	/*
	* This function is used for verification purposes and thus should
	* not introduce any side-effects/mutations on the system's state.
	*
	* Regardless of whether metaslab_weight() thinks this metaslab
	* should be active or not, we want to ensure that the actual weight
	* (and therefore the value of ms_weight) would be the same if it
	* was to be recalculated at this point.
	*
	* In addition we set the nodirty flag so metaslab_weight() does
	* not dirty the metaslab for future TXGs (e.g. when trying to
	* force condensing to upgrade the metaslab spacemaps).
	*/
	msp->ms_weight = metaslab_weight(msp, B_TRUE) \| was_active;

	VERIFY3U(max_segsize, ==, msp->ms_max_size);

	/*
	* If the weight type changed then there is no point in doing
	* verification. Revert fields to their original values.
	*/
	if ((space_based && !WEIGHT_IS_SPACEBASED(msp->ms_weight)) \|\|
	(!space_based && WEIGHT_IS_SPACEBASED(msp->ms_weight))) {
	msp->ms_fragmentation = frag;
	msp->ms_weight = weight;
	return;
	}

	VERIFY3U(msp->ms_fragmentation, ==, frag);
	VERIFY3U(msp->ms_weight, ==, weight);
	}

	/*
	* If we're over the zfs_metaslab_mem_limit, select the loaded metaslab from
	* this class that was used longest ago, and attempt to unload it. We don't
	* want to spend too much time in this loop to prevent performance
	* degradation, and we expect that most of the time this operation will
	* succeed. Between that and the normal unloading processing during txg sync,
	* we expect this to keep the metaslab memory usage under control.
	*/
	static void
	metaslab_potentially_evict(metaslab_class_t *mc)
	{
	#ifdef _KERNEL
	uint64_t allmem = arc_all_memory();
	uint64_t inuse = spl_kmem_cache_inuse(zfs_btree_leaf_cache);
	uint64_t size = spl_kmem_cache_entry_size(zfs_btree_leaf_cache);
	int tries = 0;
	for (; allmem * zfs_metaslab_mem_limit / 100 < inuse * size &&
	- tries < multilist_get_num_sublists(mc->mc_metaslab_txg_list) * 2;
	+ tries < multilist_get_num_sublists(&mc->mc_metaslab_txg_list) * 2;
	tries++) {
	unsigned int idx = multilist_get_random_index(
	- mc->mc_metaslab_txg_list);
	+ &mc->mc_metaslab_txg_list);
	multilist_sublist_t *mls =
	- multilist_sublist_lock(mc->mc_metaslab_txg_list, idx);
	+ multilist_sublist_lock(&mc->mc_metaslab_txg_list, idx);
	metaslab_t *msp = multilist_sublist_head(mls);
	multilist_sublist_unlock(mls);
	while (msp != NULL && allmem * zfs_metaslab_mem_limit / 100 <
	inuse * size) {
	VERIFY3P(mls, ==, multilist_sublist_lock(
	- mc->mc_metaslab_txg_list, idx));
	+ &mc->mc_metaslab_txg_list, idx));
	ASSERT3U(idx, ==,
	- metaslab_idx_func(mc->mc_metaslab_txg_list, msp));
	+ metaslab_idx_func(&mc->mc_metaslab_txg_list, msp));

	if (!multilist_link_active(&msp->ms_class_txg_node)) {
	multilist_sublist_unlock(mls);
	break;
	}
	metaslab_t *next_msp = multilist_sublist_next(mls, msp);
	multilist_sublist_unlock(mls);
	/*
	* If the metaslab is currently loading there are two
	* cases. If it's the metaslab we're evicting, we
	* can't continue on or we'll panic when we attempt to
	* recursively lock the mutex. If it's another
	* metaslab that's loading, it can be safely skipped,
	* since we know it's very new and therefore not a
	* good eviction candidate. We check later once the
	* lock is held that the metaslab is fully loaded
	* before actually unloading it.
	*/
	if (msp->ms_loading) {
	msp = next_msp;
	inuse =
	spl_kmem_cache_inuse(zfs_btree_leaf_cache);
	continue;
	}
	/*
	* We can't unload metaslabs with no spacemap because
	* they're not ready to be unloaded yet. We can't
	* unload metaslabs with outstanding allocations
	* because doing so could cause the metaslab's weight
	* to decrease while it's unloaded, which violates an
	* invariant that we use to prevent unnecessary
	* loading. We also don't unload metaslabs that are
	* currently active because they are high-weight
	* metaslabs that are likely to be used in the near
	* future.
	*/
	mutex_enter(&msp->ms_lock);
	if (msp->ms_allocator == -1 && msp->ms_sm != NULL &&
	msp->ms_allocating_total == 0) {
	metaslab_unload(msp);
	}
	mutex_exit(&msp->ms_lock);
	msp = next_msp;
	inuse = spl_kmem_cache_inuse(zfs_btree_leaf_cache);
	}
	}
	#endif
	}

	static int
	metaslab_load_impl(metaslab_t *msp)
	{
	int error = 0;

	ASSERT(MUTEX_HELD(&msp->ms_lock));
	ASSERT(msp->ms_loading);
	ASSERT(!msp->ms_condensing);

	/*
	* We temporarily drop the lock to unblock other operations while we
	* are reading the space map. Therefore, metaslab_sync() and
	* metaslab_sync_done() can run at the same time as we do.
	*
	* If we are using the log space maps, metaslab_sync() can't write to
	* the metaslab's space map while we are loading as we only write to
	* it when we are flushing the metaslab, and that can't happen while
	* we are loading it.
	*
	* If we are not using log space maps though, metaslab_sync() can
	* append to the space map while we are loading. Therefore we load
	* only entries that existed when we started the load. Additionally,
	* metaslab_sync_done() has to wait for the load to complete because
	* there are potential races like metaslab_load() loading parts of the
	* space map that are currently being appended by metaslab_sync(). If
	* we didn't, the ms_allocatable would have entries that
	* metaslab_sync_done() would try to re-add later.
	*
	* That's why before dropping the lock we remember the synced length
	* of the metaslab and read up to that point of the space map,
	* ignoring entries appended by metaslab_sync() that happen after we
	* drop the lock.
	*/
	uint64_t length = msp->ms_synced_length;
	mutex_exit(&msp->ms_lock);

	hrtime_t load_start = gethrtime();
	metaslab_rt_arg_t *mrap;
	if (msp->ms_allocatable->rt_arg == NULL) {
	mrap = kmem_zalloc(sizeof (*mrap), KM_SLEEP);
	} else {
	mrap = msp->ms_allocatable->rt_arg;
	msp->ms_allocatable->rt_ops = NULL;
	msp->ms_allocatable->rt_arg = NULL;
	}
	mrap->mra_bt = &msp->ms_allocatable_by_size;
	mrap->mra_floor_shift = metaslab_by_size_min_shift;

	if (msp->ms_sm != NULL) {
	error = space_map_load_length(msp->ms_sm, msp->ms_allocatable,
	SM_FREE, length);

	/* Now, populate the size-sorted tree. */
	metaslab_rt_create(msp->ms_allocatable, mrap);
	msp->ms_allocatable->rt_ops = &metaslab_rt_ops;
	msp->ms_allocatable->rt_arg = mrap;

	struct mssa_arg arg = {0};
	arg.rt = msp->ms_allocatable;
	arg.mra = mrap;
	range_tree_walk(msp->ms_allocatable, metaslab_size_sorted_add,
	&arg);
	} else {
	/*
	* Add the size-sorted tree first, since we don't need to load
	* the metaslab from the spacemap.
	*/
	metaslab_rt_create(msp->ms_allocatable, mrap);
	msp->ms_allocatable->rt_ops = &metaslab_rt_ops;
	msp->ms_allocatable->rt_arg = mrap;
	/*
	* The space map has not been allocated yet, so treat
	* all the space in the metaslab as free and add it to the
	* ms_allocatable tree.
	*/
	range_tree_add(msp->ms_allocatable,
	msp->ms_start, msp->ms_size);

	if (msp->ms_new) {
	/*
	* If the ms_sm doesn't exist, this means that this
	* metaslab hasn't gone through metaslab_sync() and
	* thus has never been dirtied. So we shouldn't
	* expect any unflushed allocs or frees from previous
	* TXGs.
	*/
	ASSERT(range_tree_is_empty(msp->ms_unflushed_allocs));
	ASSERT(range_tree_is_empty(msp->ms_unflushed_frees));
	}
	}

	/*
	* We need to grab the ms_sync_lock to prevent metaslab_sync() from
	* changing the ms_sm (or log_sm) and the metaslab's range trees
	* while we are about to use them and populate the ms_allocatable.
	* The ms_lock is insufficient for this because metaslab_sync() doesn't
	* hold the ms_lock while writing the ms_checkpointing tree to disk.
	*/
	mutex_enter(&msp->ms_sync_lock);
	mutex_enter(&msp->ms_lock);

	ASSERT(!msp->ms_condensing);
	ASSERT(!msp->ms_flushing);

	if (error != 0) {
	mutex_exit(&msp->ms_sync_lock);
	return (error);
	}

	ASSERT3P(msp->ms_group, !=, NULL);
	msp->ms_loaded = B_TRUE;

	/*
	* Apply all the unflushed changes to ms_allocatable right
	* away so any manipulations we do below have a clear view
	* of what is allocated and what is free.
	*/
	range_tree_walk(msp->ms_unflushed_allocs,
	range_tree_remove, msp->ms_allocatable);
	range_tree_walk(msp->ms_unflushed_frees,
	range_tree_add, msp->ms_allocatable);

	ASSERT3P(msp->ms_group, !=, NULL);
	spa_t *spa = msp->ms_group->mg_vd->vdev_spa;
	if (spa_syncing_log_sm(spa) != NULL) {
	ASSERT(spa_feature_is_enabled(spa,
	SPA_FEATURE_LOG_SPACEMAP));

	/*
	* If we use a log space map we add all the segments
	* that are in ms_unflushed_frees so they are available
	* for allocation.
	*
	* ms_allocatable needs to contain all free segments
	* that are ready for allocations (thus not segments
	* from ms_freeing, ms_freed, and the ms_defer trees).
	* But if we grab the lock in this code path at a sync
	* pass later that 1, then it also contains the
	* segments of ms_freed (they were added to it earlier
	* in this path through ms_unflushed_frees). So we
	* need to remove all the segments that exist in
	* ms_freed from ms_allocatable as they will be added
	* later in metaslab_sync_done().
	*
	* When there's no log space map, the ms_allocatable
	* correctly doesn't contain any segments that exist
	* in ms_freed [see ms_synced_length].
	*/
	range_tree_walk(msp->ms_freed,
	range_tree_remove, msp->ms_allocatable);
	}

	/*
	* If we are not using the log space map, ms_allocatable
	* contains the segments that exist in the ms_defer trees
	* [see ms_synced_length]. Thus we need to remove them
	* from ms_allocatable as they will be added again in
	* metaslab_sync_done().
	*
	* If we are using the log space map, ms_allocatable still
	* contains the segments that exist in the ms_defer trees.
	* Not because it read them through the ms_sm though. But
	* because these segments are part of ms_unflushed_frees
	* whose segments we add to ms_allocatable earlier in this
	* code path.
	*/
	for (int t = 0; t < TXG_DEFER_SIZE; t++) {
	range_tree_walk(msp->ms_defer[t],
	range_tree_remove, msp->ms_allocatable);
	}

	/*
	* Call metaslab_recalculate_weight_and_sort() now that the
	* metaslab is loaded so we get the metaslab's real weight.
	*
	* Unless this metaslab was created with older software and
	* has not yet been converted to use segment-based weight, we
	* expect the new weight to be better or equal to the weight
	* that the metaslab had while it was not loaded. This is
	* because the old weight does not take into account the
	* consolidation of adjacent segments between TXGs. [see
	* comment for ms_synchist and ms_deferhist[] for more info]
	*/
	uint64_t weight = msp->ms_weight;
	uint64_t max_size = msp->ms_max_size;
	metaslab_recalculate_weight_and_sort(msp);
	if (!WEIGHT_IS_SPACEBASED(weight))
	ASSERT3U(weight, <=, msp->ms_weight);
	msp->ms_max_size = metaslab_largest_allocatable(msp);
	ASSERT3U(max_size, <=, msp->ms_max_size);
	hrtime_t load_end = gethrtime();
	msp->ms_load_time = load_end;
	zfs_dbgmsg("metaslab_load: txg %llu, spa %s, vdev_id %llu, "
	"ms_id %llu, smp_length %llu, "
	"unflushed_allocs %llu, unflushed_frees %llu, "
	"freed %llu, defer %llu + %llu, unloaded time %llu ms, "
	"loading_time %lld ms, ms_max_size %llu, "
	"max size error %lld, "
	"old_weight %llx, new_weight %llx",
	spa_syncing_txg(spa), spa_name(spa),
	msp->ms_group->mg_vd->vdev_id, msp->ms_id,
	space_map_length(msp->ms_sm),
	range_tree_space(msp->ms_unflushed_allocs),
	range_tree_space(msp->ms_unflushed_frees),
	range_tree_space(msp->ms_freed),
	range_tree_space(msp->ms_defer[0]),
	range_tree_space(msp->ms_defer[1]),
	(longlong_t)((load_start - msp->ms_unload_time) / 1000000),
	(longlong_t)((load_end - load_start) / 1000000),
	msp->ms_max_size, msp->ms_max_size - max_size,
	weight, msp->ms_weight);

	metaslab_verify_space(msp, spa_syncing_txg(spa));
	mutex_exit(&msp->ms_sync_lock);
	return (0);
	}

	int
	metaslab_load(metaslab_t *msp)
	{
	ASSERT(MUTEX_HELD(&msp->ms_lock));

	/*
	* There may be another thread loading the same metaslab, if that's
	* the case just wait until the other thread is done and return.
	*/
	metaslab_load_wait(msp);
	if (msp->ms_loaded)
	return (0);
	VERIFY(!msp->ms_loading);
	ASSERT(!msp->ms_condensing);

	/*
	* We set the loading flag BEFORE potentially dropping the lock to
	* wait for an ongoing flush (see ms_flushing below). This way other
	* threads know that there is already a thread that is loading this
	* metaslab.
	*/
	msp->ms_loading = B_TRUE;

	/*
	* Wait for any in-progress flushing to finish as we drop the ms_lock
	* both here (during space_map_load()) and in metaslab_flush() (when
	* we flush our changes to the ms_sm).
	*/
	if (msp->ms_flushing)
	metaslab_flush_wait(msp);

	/*
	* In the possibility that we were waiting for the metaslab to be
	* flushed (where we temporarily dropped the ms_lock), ensure that
	* no one else loaded the metaslab somehow.
	*/
	ASSERT(!msp->ms_loaded);

	/*
	* If we're loading a metaslab in the normal class, consider evicting
	* another one to keep our memory usage under the limit defined by the
	* zfs_metaslab_mem_limit tunable.
	*/
	if (spa_normal_class(msp->ms_group->mg_class->mc_spa) ==
	msp->ms_group->mg_class) {
	metaslab_potentially_evict(msp->ms_group->mg_class);
	}

	int error = metaslab_load_impl(msp);

	ASSERT(MUTEX_HELD(&msp->ms_lock));
	msp->ms_loading = B_FALSE;
	cv_broadcast(&msp->ms_load_cv);

	return (error);
	}

	void
	metaslab_unload(metaslab_t *msp)
	{
	ASSERT(MUTEX_HELD(&msp->ms_lock));

	/*
	* This can happen if a metaslab is selected for eviction (in
	* metaslab_potentially_evict) and then unloaded during spa_sync (via
	* metaslab_class_evict_old).
	*/
	if (!msp->ms_loaded)
	return;

	range_tree_vacate(msp->ms_allocatable, NULL, NULL);
	msp->ms_loaded = B_FALSE;
	msp->ms_unload_time = gethrtime();

	msp->ms_activation_weight = 0;
	msp->ms_weight &= ~METASLAB_ACTIVE_MASK;

	if (msp->ms_group != NULL) {
	metaslab_class_t *mc = msp->ms_group->mg_class;
	multilist_sublist_t *mls =
	- multilist_sublist_lock_obj(mc->mc_metaslab_txg_list, msp);
	+ multilist_sublist_lock_obj(&mc->mc_metaslab_txg_list, msp);
	if (multilist_link_active(&msp->ms_class_txg_node))
	multilist_sublist_remove(mls, msp);
	multilist_sublist_unlock(mls);

	spa_t *spa = msp->ms_group->mg_vd->vdev_spa;
	zfs_dbgmsg("metaslab_unload: txg %llu, spa %s, vdev_id %llu, "
	"ms_id %llu, weight %llx, "
	"selected txg %llu (%llu ms ago), alloc_txg %llu, "
	"loaded %llu ms ago, max_size %llu",
	spa_syncing_txg(spa), spa_name(spa),
	msp->ms_group->mg_vd->vdev_id, msp->ms_id,
	msp->ms_weight,
	msp->ms_selected_txg,
	(msp->ms_unload_time - msp->ms_selected_time) / 1000 / 1000,
	msp->ms_alloc_txg,
	(msp->ms_unload_time - msp->ms_load_time) / 1000 / 1000,
	msp->ms_max_size);
	}

	/*
	* We explicitly recalculate the metaslab's weight based on its space
	* map (as it is now not loaded). We want unload metaslabs to always
	* have their weights calculated from the space map histograms, while
	* loaded ones have it calculated from their in-core range tree
	* [see metaslab_load()]. This way, the weight reflects the information
	* available in-core, whether it is loaded or not.
	*
	* If ms_group == NULL means that we came here from metaslab_fini(),
	* at which point it doesn't make sense for us to do the recalculation
	* and the sorting.
	*/
	if (msp->ms_group != NULL)
	metaslab_recalculate_weight_and_sort(msp);
	}

	/*
	* We want to optimize the memory use of the per-metaslab range
	* trees. To do this, we store the segments in the range trees in
	* units of sectors, zero-indexing from the start of the metaslab. If
	* the vdev_ms_shift - the vdev_ashift is less than 32, we can store
	* the ranges using two uint32_ts, rather than two uint64_ts.
	*/
	range_seg_type_t
	metaslab_calculate_range_tree_type(vdev_t vdev, metaslab_t msp,
	uint64_t start, uint64_t shift)
	{
	if (vdev->vdev_ms_shift - vdev->vdev_ashift < 32 &&
	!zfs_metaslab_force_large_segs) {
	*shift = vdev->vdev_ashift;
	*start = msp->ms_start;
	return (RANGE_SEG32);
	} else {
	*shift = 0;
	*start = 0;
	return (RANGE_SEG64);
	}
	}

	void
	metaslab_set_selected_txg(metaslab_t *msp, uint64_t txg)
	{
	ASSERT(MUTEX_HELD(&msp->ms_lock));
	metaslab_class_t *mc = msp->ms_group->mg_class;
	multilist_sublist_t *mls =
	- multilist_sublist_lock_obj(mc->mc_metaslab_txg_list, msp);
	+ multilist_sublist_lock_obj(&mc->mc_metaslab_txg_list, msp);
	if (multilist_link_active(&msp->ms_class_txg_node))
	multilist_sublist_remove(mls, msp);
	msp->ms_selected_txg = txg;
	msp->ms_selected_time = gethrtime();
	multilist_sublist_insert_tail(mls, msp);
	multilist_sublist_unlock(mls);
	}

	void
	metaslab_space_update(vdev_t vd, metaslab_class_t mc, int64_t alloc_delta,
	int64_t defer_delta, int64_t space_delta)
	{
	vdev_space_update(vd, alloc_delta, defer_delta, space_delta);

	ASSERT3P(vd->vdev_spa->spa_root_vdev, ==, vd->vdev_parent);
	ASSERT(vd->vdev_ms_count != 0);

	metaslab_class_space_update(mc, alloc_delta, defer_delta, space_delta,
	vdev_deflated_space(vd, space_delta));
	}

	int
	metaslab_init(metaslab_group_t *mg, uint64_t id, uint64_t object,
	uint64_t txg, metaslab_t **msp)
	{
	vdev_t *vd = mg->mg_vd;
	spa_t *spa = vd->vdev_spa;
	objset_t *mos = spa->spa_meta_objset;
	metaslab_t *ms;
	int error;

	ms = kmem_zalloc(sizeof (metaslab_t), KM_SLEEP);
	mutex_init(&ms->ms_lock, NULL, MUTEX_DEFAULT, NULL);
	mutex_init(&ms->ms_sync_lock, NULL, MUTEX_DEFAULT, NULL);
	cv_init(&ms->ms_load_cv, NULL, CV_DEFAULT, NULL);
	cv_init(&ms->ms_flush_cv, NULL, CV_DEFAULT, NULL);
	multilist_link_init(&ms->ms_class_txg_node);

	ms->ms_id = id;
	ms->ms_start = id << vd->vdev_ms_shift;
	ms->ms_size = 1ULL << vd->vdev_ms_shift;
	ms->ms_allocator = -1;
	ms->ms_new = B_TRUE;

	vdev_ops_t *ops = vd->vdev_ops;
	if (ops->vdev_op_metaslab_init != NULL)
	ops->vdev_op_metaslab_init(vd, &ms->ms_start, &ms->ms_size);

	/*
	* We only open space map objects that already exist. All others
	* will be opened when we finally allocate an object for it.
	*
	* Note:
	* When called from vdev_expand(), we can't call into the DMU as
	* we are holding the spa_config_lock as a writer and we would
	* deadlock [see relevant comment in vdev_metaslab_init()]. in
	* that case, the object parameter is zero though, so we won't
	* call into the DMU.
	*/
	if (object != 0) {
	error = space_map_open(&ms->ms_sm, mos, object, ms->ms_start,
	ms->ms_size, vd->vdev_ashift);

	if (error != 0) {
	kmem_free(ms, sizeof (metaslab_t));
	return (error);
	}

	ASSERT(ms->ms_sm != NULL);
	ms->ms_allocated_space = space_map_allocated(ms->ms_sm);
	}

	uint64_t shift, start;
	range_seg_type_t type =
	metaslab_calculate_range_tree_type(vd, ms, &start, &shift);

	ms->ms_allocatable = range_tree_create(NULL, type, NULL, start, shift);
	for (int t = 0; t < TXG_SIZE; t++) {
	ms->ms_allocating[t] = range_tree_create(NULL, type,
	NULL, start, shift);
	}
	ms->ms_freeing = range_tree_create(NULL, type, NULL, start, shift);
	ms->ms_freed = range_tree_create(NULL, type, NULL, start, shift);
	for (int t = 0; t < TXG_DEFER_SIZE; t++) {
	ms->ms_defer[t] = range_tree_create(NULL, type, NULL,
	start, shift);
	}
	ms->ms_checkpointing =
	range_tree_create(NULL, type, NULL, start, shift);
	ms->ms_unflushed_allocs =
	range_tree_create(NULL, type, NULL, start, shift);

	metaslab_rt_arg_t mrap = kmem_zalloc(sizeof (mrap), KM_SLEEP);
	mrap->mra_bt = &ms->ms_unflushed_frees_by_size;
	mrap->mra_floor_shift = metaslab_by_size_min_shift;
	ms->ms_unflushed_frees = range_tree_create(&metaslab_rt_ops,
	type, mrap, start, shift);

	ms->ms_trim = range_tree_create(NULL, type, NULL, start, shift);

	metaslab_group_add(mg, ms);
	metaslab_set_fragmentation(ms, B_FALSE);

	/*
	* If we're opening an existing pool (txg == 0) or creating
	* a new one (txg == TXG_INITIAL), all space is available now.
	* If we're adding space to an existing pool, the new space
	* does not become available until after this txg has synced.
	* The metaslab's weight will also be initialized when we sync
	* out this txg. This ensures that we don't attempt to allocate
	* from it before we have initialized it completely.
	*/
	if (txg <= TXG_INITIAL) {
	metaslab_sync_done(ms, 0);
	metaslab_space_update(vd, mg->mg_class,
	metaslab_allocated_space(ms), 0, 0);
	}

	if (txg != 0) {
	vdev_dirty(vd, 0, NULL, txg);
	vdev_dirty(vd, VDD_METASLAB, ms, txg);
	}

	*msp = ms;

	return (0);
	}

	static void
	metaslab_fini_flush_data(metaslab_t *msp)
	{
	spa_t *spa = msp->ms_group->mg_vd->vdev_spa;

	if (metaslab_unflushed_txg(msp) == 0) {
	ASSERT3P(avl_find(&spa->spa_metaslabs_by_flushed, msp, NULL),
	==, NULL);
	return;
	}
	ASSERT(spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP));

	mutex_enter(&spa->spa_flushed_ms_lock);
	avl_remove(&spa->spa_metaslabs_by_flushed, msp);
	mutex_exit(&spa->spa_flushed_ms_lock);

	spa_log_sm_decrement_mscount(spa, metaslab_unflushed_txg(msp));
	spa_log_summary_decrement_mscount(spa, metaslab_unflushed_txg(msp));
	}

	uint64_t
	metaslab_unflushed_changes_memused(metaslab_t *ms)
	{
	return ((range_tree_numsegs(ms->ms_unflushed_allocs) +
	range_tree_numsegs(ms->ms_unflushed_frees)) *
	ms->ms_unflushed_allocs->rt_root.bt_elem_size);
	}

	void
	metaslab_fini(metaslab_t *msp)
	{
	metaslab_group_t *mg = msp->ms_group;
	vdev_t *vd = mg->mg_vd;
	spa_t *spa = vd->vdev_spa;

	metaslab_fini_flush_data(msp);

	metaslab_group_remove(mg, msp);

	mutex_enter(&msp->ms_lock);
	VERIFY(msp->ms_group == NULL);

	/*
	* If this metaslab hasn't been through metaslab_sync_done() yet its
	* space hasn't been accounted for in its vdev and doesn't need to be
	* subtracted.
	*/
	if (!msp->ms_new) {
	metaslab_space_update(vd, mg->mg_class,
	-metaslab_allocated_space(msp), 0, -msp->ms_size);

	}
	space_map_close(msp->ms_sm);
	msp->ms_sm = NULL;

	metaslab_unload(msp);

	range_tree_destroy(msp->ms_allocatable);
	range_tree_destroy(msp->ms_freeing);
	range_tree_destroy(msp->ms_freed);

	ASSERT3U(spa->spa_unflushed_stats.sus_memused, >=,
	metaslab_unflushed_changes_memused(msp));
	spa->spa_unflushed_stats.sus_memused -=
	metaslab_unflushed_changes_memused(msp);
	range_tree_vacate(msp->ms_unflushed_allocs, NULL, NULL);
	range_tree_destroy(msp->ms_unflushed_allocs);
	range_tree_destroy(msp->ms_checkpointing);
	range_tree_vacate(msp->ms_unflushed_frees, NULL, NULL);
	range_tree_destroy(msp->ms_unflushed_frees);

	for (int t = 0; t < TXG_SIZE; t++) {
	range_tree_destroy(msp->ms_allocating[t]);
	}
	for (int t = 0; t < TXG_DEFER_SIZE; t++) {
	range_tree_destroy(msp->ms_defer[t]);
	}
	ASSERT0(msp->ms_deferspace);

	for (int t = 0; t < TXG_SIZE; t++)
	ASSERT(!txg_list_member(&vd->vdev_ms_list, msp, t));

	range_tree_vacate(msp->ms_trim, NULL, NULL);
	range_tree_destroy(msp->ms_trim);

	mutex_exit(&msp->ms_lock);
	cv_destroy(&msp->ms_load_cv);
	cv_destroy(&msp->ms_flush_cv);
	mutex_destroy(&msp->ms_lock);
	mutex_destroy(&msp->ms_sync_lock);
	ASSERT3U(msp->ms_allocator, ==, -1);

	kmem_free(msp, sizeof (metaslab_t));
	}

	#define FRAGMENTATION_TABLE_SIZE 17

	/*
	* This table defines a segment size based fragmentation metric that will
	* allow each metaslab to derive its own fragmentation value. This is done
	* by calculating the space in each bucket of the spacemap histogram and
	* multiplying that by the fragmentation metric in this table. Doing
	* this for all buckets and dividing it by the total amount of free
	* space in this metaslab (i.e. the total free space in all buckets) gives
	* us the fragmentation metric. This means that a high fragmentation metric
	* equates to most of the free space being comprised of small segments.
	* Conversely, if the metric is low, then most of the free space is in
	* large segments. A 10% change in fragmentation equates to approximately
	* double the number of segments.
	*
	* This table defines 0% fragmented space using 16MB segments. Testing has
	* shown that segments that are greater than or equal to 16MB do not suffer
	* from drastic performance problems. Using this value, we derive the rest
	* of the table. Since the fragmentation value is never stored on disk, it
	* is possible to change these calculations in the future.
	*/
	int zfs_frag_table[FRAGMENTATION_TABLE_SIZE] = {
	100, /* 512B */
	100, /* 1K */
	98, /* 2K */
	95, /* 4K */
	90, /* 8K */
	80, /* 16K */
	70, /* 32K */
	60, /* 64K */
	50, /* 128K */
	40, /* 256K */
	30, /* 512K */
	20, /* 1M */
	15, /* 2M */
	10, /* 4M */
	5, /* 8M */
	0 /* 16M */
	};

	/*
	* Calculate the metaslab's fragmentation metric and set ms_fragmentation.
	* Setting this value to ZFS_FRAG_INVALID means that the metaslab has not
	* been upgraded and does not support this metric. Otherwise, the return
	* value should be in the range [0, 100].
	*/
	static void
	metaslab_set_fragmentation(metaslab_t *msp, boolean_t nodirty)
	{
	spa_t *spa = msp->ms_group->mg_vd->vdev_spa;
	uint64_t fragmentation = 0;
	uint64_t total = 0;
	boolean_t feature_enabled = spa_feature_is_enabled(spa,
	SPA_FEATURE_SPACEMAP_HISTOGRAM);

	if (!feature_enabled) {
	msp->ms_fragmentation = ZFS_FRAG_INVALID;
	return;
	}

	/*
	* A null space map means that the entire metaslab is free
	* and thus is not fragmented.
	*/
	if (msp->ms_sm == NULL) {
	msp->ms_fragmentation = 0;
	return;
	}

	/*
	* If this metaslab's space map has not been upgraded, flag it
	* so that we upgrade next time we encounter it.
	*/
	if (msp->ms_sm->sm_dbuf->db_size != sizeof (space_map_phys_t)) {
	uint64_t txg = spa_syncing_txg(spa);
	vdev_t *vd = msp->ms_group->mg_vd;

	/*
	* If we've reached the final dirty txg, then we must
	* be shutting down the pool. We don't want to dirty
	* any data past this point so skip setting the condense
	* flag. We can retry this action the next time the pool
	* is imported. We also skip marking this metaslab for
	* condensing if the caller has explicitly set nodirty.
	*/
	if (!nodirty &&
	spa_writeable(spa) && txg < spa_final_dirty_txg(spa)) {
	msp->ms_condense_wanted = B_TRUE;
	vdev_dirty(vd, VDD_METASLAB, msp, txg + 1);
	zfs_dbgmsg("txg %llu, requesting force condense: "
	"ms_id %llu, vdev_id %llu", txg, msp->ms_id,
	vd->vdev_id);
	}
	msp->ms_fragmentation = ZFS_FRAG_INVALID;
	return;
	}

	for (int i = 0; i < SPACE_MAP_HISTOGRAM_SIZE; i++) {
	uint64_t space = 0;
	uint8_t shift = msp->ms_sm->sm_shift;

	int idx = MIN(shift - SPA_MINBLOCKSHIFT + i,
	FRAGMENTATION_TABLE_SIZE - 1);

	if (msp->ms_sm->sm_phys->smp_histogram[i] == 0)
	continue;

	space = msp->ms_sm->sm_phys->smp_histogram[i] << (i + shift);
	total += space;

	ASSERT3U(idx, <, FRAGMENTATION_TABLE_SIZE);
	fragmentation += space * zfs_frag_table[idx];
	}

	if (total > 0)
	fragmentation /= total;
	ASSERT3U(fragmentation, <=, 100);

	msp->ms_fragmentation = fragmentation;
	}

	/*
	* Compute a weight -- a selection preference value -- for the given metaslab.
	* This is based on the amount of free space, the level of fragmentation,
	* the LBA range, and whether the metaslab is loaded.
	*/
	static uint64_t
	metaslab_space_weight(metaslab_t *msp)
	{
	metaslab_group_t *mg = msp->ms_group;
	vdev_t *vd = mg->mg_vd;
	uint64_t weight, space;

	ASSERT(MUTEX_HELD(&msp->ms_lock));

	/*
	* The baseline weight is the metaslab's free space.
	*/
	space = msp->ms_size - metaslab_allocated_space(msp);

	if (metaslab_fragmentation_factor_enabled &&
	msp->ms_fragmentation != ZFS_FRAG_INVALID) {
	/*
	* Use the fragmentation information to inversely scale
	* down the baseline weight. We need to ensure that we
	* don't exclude this metaslab completely when it's 100%
	* fragmented. To avoid this we reduce the fragmented value
	* by 1.
	*/
	space = (space * (100 - (msp->ms_fragmentation - 1))) / 100;

	/*
	* If space < SPA_MINBLOCKSIZE, then we will not allocate from
	* this metaslab again. The fragmentation metric may have
	* decreased the space to something smaller than
	* SPA_MINBLOCKSIZE, so reset the space to SPA_MINBLOCKSIZE
	* so that we can consume any remaining space.
	*/
	if (space > 0 && space < SPA_MINBLOCKSIZE)
	space = SPA_MINBLOCKSIZE;
	}
	weight = space;

	/*
	* Modern disks have uniform bit density and constant angular velocity.
	* Therefore, the outer recording zones are faster (higher bandwidth)
	* than the inner zones by the ratio of outer to inner track diameter,
	* which is typically around 2:1. We account for this by assigning
	* higher weight to lower metaslabs (multiplier ranging from 2x to 1x).
	* In effect, this means that we'll select the metaslab with the most
	* free bandwidth rather than simply the one with the most free space.
	*/
	if (!vd->vdev_nonrot && metaslab_lba_weighting_enabled) {
	weight = 2 * weight - (msp->ms_id * weight) / vd->vdev_ms_count;
	ASSERT(weight >= space && weight <= 2 * space);
	}

	/*
	* If this metaslab is one we're actively using, adjust its
	* weight to make it preferable to any inactive metaslab so
	* we'll polish it off. If the fragmentation on this metaslab
	* has exceed our threshold, then don't mark it active.
	*/
	if (msp->ms_loaded && msp->ms_fragmentation != ZFS_FRAG_INVALID &&
	msp->ms_fragmentation <= zfs_metaslab_fragmentation_threshold) {
	weight \|= (msp->ms_weight & METASLAB_ACTIVE_MASK);
	}

	WEIGHT_SET_SPACEBASED(weight);
	return (weight);
	}

	/*
	* Return the weight of the specified metaslab, according to the segment-based
	* weighting algorithm. The metaslab must be loaded. This function can
	* be called within a sync pass since it relies only on the metaslab's
	* range tree which is always accurate when the metaslab is loaded.
	*/
	static uint64_t
	metaslab_weight_from_range_tree(metaslab_t *msp)
	{
	uint64_t weight = 0;
	uint32_t segments = 0;

	ASSERT(msp->ms_loaded);

	for (int i = RANGE_TREE_HISTOGRAM_SIZE - 1; i >= SPA_MINBLOCKSHIFT;
	i--) {
	uint8_t shift = msp->ms_group->mg_vd->vdev_ashift;
	int max_idx = SPACE_MAP_HISTOGRAM_SIZE + shift - 1;

	segments <<= 1;
	segments += msp->ms_allocatable->rt_histogram[i];

	/*
	* The range tree provides more precision than the space map
	* and must be downgraded so that all values fit within the
	* space map's histogram. This allows us to compare loaded
	* vs. unloaded metaslabs to determine which metaslab is
	* considered "best".
	*/
	if (i > max_idx)
	continue;

	if (segments != 0) {
	WEIGHT_SET_COUNT(weight, segments);
	WEIGHT_SET_INDEX(weight, i);
	WEIGHT_SET_ACTIVE(weight, 0);
	break;
	}
	}
	return (weight);
	}

	/*
	* Calculate the weight based on the on-disk histogram. Should be applied
	* only to unloaded metaslabs (i.e no incoming allocations) in-order to
	* give results consistent with the on-disk state
	*/
	static uint64_t
	metaslab_weight_from_spacemap(metaslab_t *msp)
	{
	space_map_t *sm = msp->ms_sm;
	ASSERT(!msp->ms_loaded);
	ASSERT(sm != NULL);
	ASSERT3U(space_map_object(sm), !=, 0);
	ASSERT3U(sm->sm_dbuf->db_size, ==, sizeof (space_map_phys_t));

	/*
	* Create a joint histogram from all the segments that have made
	* it to the metaslab's space map histogram, that are not yet
	* available for allocation because they are still in the freeing
	* pipeline (e.g. freeing, freed, and defer trees). Then subtract
	* these segments from the space map's histogram to get a more
	* accurate weight.
	*/
	uint64_t deferspace_histogram[SPACE_MAP_HISTOGRAM_SIZE] = {0};
	for (int i = 0; i < SPACE_MAP_HISTOGRAM_SIZE; i++)
	deferspace_histogram[i] += msp->ms_synchist[i];
	for (int t = 0; t < TXG_DEFER_SIZE; t++) {
	for (int i = 0; i < SPACE_MAP_HISTOGRAM_SIZE; i++) {
	deferspace_histogram[i] += msp->ms_deferhist[t][i];
	}
	}

	uint64_t weight = 0;
	for (int i = SPACE_MAP_HISTOGRAM_SIZE - 1; i >= 0; i--) {
	ASSERT3U(sm->sm_phys->smp_histogram[i], >=,
	deferspace_histogram[i]);
	uint64_t count =
	sm->sm_phys->smp_histogram[i] - deferspace_histogram[i];
	if (count != 0) {
	WEIGHT_SET_COUNT(weight, count);
	WEIGHT_SET_INDEX(weight, i + sm->sm_shift);
	WEIGHT_SET_ACTIVE(weight, 0);
	break;
	}
	}
	return (weight);
	}

	/*
	* Compute a segment-based weight for the specified metaslab. The weight
	* is determined by highest bucket in the histogram. The information
	* for the highest bucket is encoded into the weight value.
	*/
	static uint64_t
	metaslab_segment_weight(metaslab_t *msp)
	{
	metaslab_group_t *mg = msp->ms_group;
	uint64_t weight = 0;
	uint8_t shift = mg->mg_vd->vdev_ashift;

	ASSERT(MUTEX_HELD(&msp->ms_lock));

	/*
	* The metaslab is completely free.
	*/
	if (metaslab_allocated_space(msp) == 0) {
	int idx = highbit64(msp->ms_size) - 1;
	int max_idx = SPACE_MAP_HISTOGRAM_SIZE + shift - 1;

	if (idx < max_idx) {
	WEIGHT_SET_COUNT(weight, 1ULL);
	WEIGHT_SET_INDEX(weight, idx);
	} else {
	WEIGHT_SET_COUNT(weight, 1ULL << (idx - max_idx));
	WEIGHT_SET_INDEX(weight, max_idx);
	}
	WEIGHT_SET_ACTIVE(weight, 0);
	ASSERT(!WEIGHT_IS_SPACEBASED(weight));
	return (weight);
	}

	ASSERT3U(msp->ms_sm->sm_dbuf->db_size, ==, sizeof (space_map_phys_t));

	/*
	* If the metaslab is fully allocated then just make the weight 0.
	*/
	if (metaslab_allocated_space(msp) == msp->ms_size)
	return (0);
	/*
	* If the metaslab is already loaded, then use the range tree to
	* determine the weight. Otherwise, we rely on the space map information
	* to generate the weight.
	*/
	if (msp->ms_loaded) {
	weight = metaslab_weight_from_range_tree(msp);
	} else {
	weight = metaslab_weight_from_spacemap(msp);
	}

	/*
	* If the metaslab was active the last time we calculated its weight
	* then keep it active. We want to consume the entire region that
	* is associated with this weight.
	*/
	if (msp->ms_activation_weight != 0 && weight != 0)
	WEIGHT_SET_ACTIVE(weight, WEIGHT_GET_ACTIVE(msp->ms_weight));
	return (weight);
	}

	/*
	* Determine if we should attempt to allocate from this metaslab. If the
	* metaslab is loaded, then we can determine if the desired allocation
	* can be satisfied by looking at the size of the maximum free segment
	* on that metaslab. Otherwise, we make our decision based on the metaslab's
	* weight. For segment-based weighting we can determine the maximum
	* allocation based on the index encoded in its value. For space-based
	* weights we rely on the entire weight (excluding the weight-type bit).
	*/
	static boolean_t
	metaslab_should_allocate(metaslab_t *msp, uint64_t asize, boolean_t try_hard)
	{
	/*
	* If the metaslab is loaded, ms_max_size is definitive and we can use
	* the fast check. If it's not, the ms_max_size is a lower bound (once
	* set), and we should use the fast check as long as we're not in
	* try_hard and it's been less than zfs_metaslab_max_size_cache_sec
	* seconds since the metaslab was unloaded.
	*/
	if (msp->ms_loaded \|\|
	(msp->ms_max_size != 0 && !try_hard && gethrtime() <
	msp->ms_unload_time + SEC2NSEC(zfs_metaslab_max_size_cache_sec)))
	return (msp->ms_max_size >= asize);

	boolean_t should_allocate;
	if (!WEIGHT_IS_SPACEBASED(msp->ms_weight)) {
	/*
	* The metaslab segment weight indicates segments in the
	* range [2^i, 2^(i+1)), where i is the index in the weight.
	* Since the asize might be in the middle of the range, we
	* should attempt the allocation if asize < 2^(i+1).
	*/
	should_allocate = (asize <
	1ULL << (WEIGHT_GET_INDEX(msp->ms_weight) + 1));
	} else {
	should_allocate = (asize <=
	(msp->ms_weight & ~METASLAB_WEIGHT_TYPE));
	}

	return (should_allocate);
	}

	static uint64_t
	metaslab_weight(metaslab_t *msp, boolean_t nodirty)
	{
	vdev_t *vd = msp->ms_group->mg_vd;
	spa_t *spa = vd->vdev_spa;
	uint64_t weight;

	ASSERT(MUTEX_HELD(&msp->ms_lock));

	metaslab_set_fragmentation(msp, nodirty);

	/*
	* Update the maximum size. If the metaslab is loaded, this will
	* ensure that we get an accurate maximum size if newly freed space
	* has been added back into the free tree. If the metaslab is
	* unloaded, we check if there's a larger free segment in the
	* unflushed frees. This is a lower bound on the largest allocatable
	* segment size. Coalescing of adjacent entries may reveal larger
	* allocatable segments, but we aren't aware of those until loading
	* the space map into a range tree.
	*/
	if (msp->ms_loaded) {
	msp->ms_max_size = metaslab_largest_allocatable(msp);
	} else {
	msp->ms_max_size = MAX(msp->ms_max_size,
	metaslab_largest_unflushed_free(msp));
	}

	/*
	* Segment-based weighting requires space map histogram support.
	*/
	if (zfs_metaslab_segment_weight_enabled &&
	spa_feature_is_enabled(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM) &&
	(msp->ms_sm == NULL \|\| msp->ms_sm->sm_dbuf->db_size ==
	sizeof (space_map_phys_t))) {
	weight = metaslab_segment_weight(msp);
	} else {
	weight = metaslab_space_weight(msp);
	}
	return (weight);
	}

	void
	metaslab_recalculate_weight_and_sort(metaslab_t *msp)
	{
	ASSERT(MUTEX_HELD(&msp->ms_lock));

	/* note: we preserve the mask (e.g. indication of primary, etc..) */
	uint64_t was_active = msp->ms_weight & METASLAB_ACTIVE_MASK;
	metaslab_group_sort(msp->ms_group, msp,
	metaslab_weight(msp, B_FALSE) \| was_active);
	}

	static int
	metaslab_activate_allocator(metaslab_group_t mg, metaslab_t msp,
	int allocator, uint64_t activation_weight)
	{
	metaslab_group_allocator_t *mga = &mg->mg_allocator[allocator];
	ASSERT(MUTEX_HELD(&msp->ms_lock));

	/*
	* If we're activating for the claim code, we don't want to actually
	* set the metaslab up for a specific allocator.
	*/
	if (activation_weight == METASLAB_WEIGHT_CLAIM) {
	ASSERT0(msp->ms_activation_weight);
	msp->ms_activation_weight = msp->ms_weight;
	metaslab_group_sort(mg, msp, msp->ms_weight \|
	activation_weight);
	return (0);
	}

	metaslab_t **mspp = (activation_weight == METASLAB_WEIGHT_PRIMARY ?
	&mga->mga_primary : &mga->mga_secondary);

	mutex_enter(&mg->mg_lock);
	if (*mspp != NULL) {
	mutex_exit(&mg->mg_lock);
	return (EEXIST);
	}

	*mspp = msp;
	ASSERT3S(msp->ms_allocator, ==, -1);
	msp->ms_allocator = allocator;
	msp->ms_primary = (activation_weight == METASLAB_WEIGHT_PRIMARY);

	ASSERT0(msp->ms_activation_weight);
	msp->ms_activation_weight = msp->ms_weight;
	metaslab_group_sort_impl(mg, msp,
	msp->ms_weight \| activation_weight);
	mutex_exit(&mg->mg_lock);

	return (0);
	}

	static int
	metaslab_activate(metaslab_t *msp, int allocator, uint64_t activation_weight)
	{
	ASSERT(MUTEX_HELD(&msp->ms_lock));

	/*
	* The current metaslab is already activated for us so there
	* is nothing to do. Already activated though, doesn't mean
	* that this metaslab is activated for our allocator nor our
	* requested activation weight. The metaslab could have started
	* as an active one for our allocator but changed allocators
	* while we were waiting to grab its ms_lock or we stole it
	* [see find_valid_metaslab()]. This means that there is a
	* possibility of passivating a metaslab of another allocator
	* or from a different activation mask, from this thread.
	*/
	if ((msp->ms_weight & METASLAB_ACTIVE_MASK) != 0) {
	ASSERT(msp->ms_loaded);
	return (0);
	}

	int error = metaslab_load(msp);
	if (error != 0) {
	metaslab_group_sort(msp->ms_group, msp, 0);
	return (error);
	}

	/*
	* When entering metaslab_load() we may have dropped the
	* ms_lock because we were loading this metaslab, or we
	* were waiting for another thread to load it for us. In
	* that scenario, we recheck the weight of the metaslab
	* to see if it was activated by another thread.
	*
	* If the metaslab was activated for another allocator or
	* it was activated with a different activation weight (e.g.
	* we wanted to make it a primary but it was activated as
	* secondary) we return error (EBUSY).
	*
	* If the metaslab was activated for the same allocator
	* and requested activation mask, skip activating it.
	*/
	if ((msp->ms_weight & METASLAB_ACTIVE_MASK) != 0) {
	if (msp->ms_allocator != allocator)
	return (EBUSY);

	if ((msp->ms_weight & activation_weight) == 0)
	return (SET_ERROR(EBUSY));

	EQUIV((activation_weight == METASLAB_WEIGHT_PRIMARY),
	msp->ms_primary);
	return (0);
	}

	/*
	* If the metaslab has literally 0 space, it will have weight 0. In
	* that case, don't bother activating it. This can happen if the
	* metaslab had space during find_valid_metaslab, but another thread
	* loaded it and used all that space while we were waiting to grab the
	* lock.
	*/
	if (msp->ms_weight == 0) {
	ASSERT0(range_tree_space(msp->ms_allocatable));
	return (SET_ERROR(ENOSPC));
	}

	if ((error = metaslab_activate_allocator(msp->ms_group, msp,
	allocator, activation_weight)) != 0) {
	return (error);
	}

	ASSERT(msp->ms_loaded);
	ASSERT(msp->ms_weight & METASLAB_ACTIVE_MASK);

	return (0);
	}

	static void
	metaslab_passivate_allocator(metaslab_group_t mg, metaslab_t msp,
	uint64_t weight)
	{
	ASSERT(MUTEX_HELD(&msp->ms_lock));
	ASSERT(msp->ms_loaded);

	if (msp->ms_weight & METASLAB_WEIGHT_CLAIM) {
	metaslab_group_sort(mg, msp, weight);
	return;
	}

	mutex_enter(&mg->mg_lock);
	ASSERT3P(msp->ms_group, ==, mg);
	ASSERT3S(0, <=, msp->ms_allocator);
	ASSERT3U(msp->ms_allocator, <, mg->mg_allocators);

	metaslab_group_allocator_t *mga = &mg->mg_allocator[msp->ms_allocator];
	if (msp->ms_primary) {
	ASSERT3P(mga->mga_primary, ==, msp);
	ASSERT(msp->ms_weight & METASLAB_WEIGHT_PRIMARY);
	mga->mga_primary = NULL;
	} else {
	ASSERT3P(mga->mga_secondary, ==, msp);
	ASSERT(msp->ms_weight & METASLAB_WEIGHT_SECONDARY);
	mga->mga_secondary = NULL;
	}
	msp->ms_allocator = -1;
	metaslab_group_sort_impl(mg, msp, weight);
	mutex_exit(&mg->mg_lock);
	}

	static void
	metaslab_passivate(metaslab_t *msp, uint64_t weight)
	{
	uint64_t size __maybe_unused = weight & ~METASLAB_WEIGHT_TYPE;

	/*
	* If size < SPA_MINBLOCKSIZE, then we will not allocate from
	* this metaslab again. In that case, it had better be empty,
	* or we would be leaving space on the table.
	*/
	ASSERT(!WEIGHT_IS_SPACEBASED(msp->ms_weight) \|\|
	size >= SPA_MINBLOCKSIZE \|\|
	range_tree_space(msp->ms_allocatable) == 0);
	ASSERT0(weight & METASLAB_ACTIVE_MASK);

	ASSERT(msp->ms_activation_weight != 0);
	msp->ms_activation_weight = 0;
	metaslab_passivate_allocator(msp->ms_group, msp, weight);
	ASSERT0(msp->ms_weight & METASLAB_ACTIVE_MASK);
	}

	/*
	* Segment-based metaslabs are activated once and remain active until
	* we either fail an allocation attempt (similar to space-based metaslabs)
	* or have exhausted the free space in zfs_metaslab_switch_threshold
	* buckets since the metaslab was activated. This function checks to see
	* if we've exhausted the zfs_metaslab_switch_threshold buckets in the
	* metaslab and passivates it proactively. This will allow us to select a
	* metaslab with a larger contiguous region, if any, remaining within this
	* metaslab group. If we're in sync pass > 1, then we continue using this
	* metaslab so that we don't dirty more block and cause more sync passes.
	*/
	static void
	metaslab_segment_may_passivate(metaslab_t *msp)
	{
	spa_t *spa = msp->ms_group->mg_vd->vdev_spa;

	if (WEIGHT_IS_SPACEBASED(msp->ms_weight) \|\| spa_sync_pass(spa) > 1)
	return;

	/*
	* Since we are in the middle of a sync pass, the most accurate
	* information that is accessible to us is the in-core range tree
	* histogram; calculate the new weight based on that information.
	*/
	uint64_t weight = metaslab_weight_from_range_tree(msp);
	int activation_idx = WEIGHT_GET_INDEX(msp->ms_activation_weight);
	int current_idx = WEIGHT_GET_INDEX(weight);

	if (current_idx <= activation_idx - zfs_metaslab_switch_threshold)
	metaslab_passivate(msp, weight);
	}

	static void
	metaslab_preload(void *arg)
	{
	metaslab_t *msp = arg;
	metaslab_class_t *mc = msp->ms_group->mg_class;
	spa_t *spa = mc->mc_spa;
	fstrans_cookie_t cookie = spl_fstrans_mark();

	ASSERT(!MUTEX_HELD(&msp->ms_group->mg_lock));

	mutex_enter(&msp->ms_lock);
	(void) metaslab_load(msp);
	metaslab_set_selected_txg(msp, spa_syncing_txg(spa));
	mutex_exit(&msp->ms_lock);
	spl_fstrans_unmark(cookie);
	}

	static void
	metaslab_group_preload(metaslab_group_t *mg)
	{
	spa_t *spa = mg->mg_vd->vdev_spa;
	metaslab_t *msp;
	avl_tree_t *t = &mg->mg_metaslab_tree;
	int m = 0;

	if (spa_shutting_down(spa) \|\| !metaslab_preload_enabled) {
	taskq_wait_outstanding(mg->mg_taskq, 0);
	return;
	}

	mutex_enter(&mg->mg_lock);

	/*
	* Load the next potential metaslabs
	*/
	for (msp = avl_first(t); msp != NULL; msp = AVL_NEXT(t, msp)) {
	ASSERT3P(msp->ms_group, ==, mg);

	/*
	* We preload only the maximum number of metaslabs specified
	* by metaslab_preload_limit. If a metaslab is being forced
	* to condense then we preload it too. This will ensure
	* that force condensing happens in the next txg.
	*/
	if (++m > metaslab_preload_limit && !msp->ms_condense_wanted) {
	continue;
	}

	VERIFY(taskq_dispatch(mg->mg_taskq, metaslab_preload,
	msp, TQ_SLEEP) != TASKQID_INVALID);
	}
	mutex_exit(&mg->mg_lock);
	}

	/*
	* Determine if the space map's on-disk footprint is past our tolerance for
	* inefficiency. We would like to use the following criteria to make our
	* decision:
	*
	* 1. Do not condense if the size of the space map object would dramatically
	* increase as a result of writing out the free space range tree.
	*
	* 2. Condense if the on on-disk space map representation is at least
	* zfs_condense_pct/100 times the size of the optimal representation
	* (i.e. zfs_condense_pct = 110 and in-core = 1MB, optimal = 1.1MB).
	*
	* 3. Do not condense if the on-disk size of the space map does not actually
	* decrease.
	*
	* Unfortunately, we cannot compute the on-disk size of the space map in this
	* context because we cannot accurately compute the effects of compression, etc.
	* Instead, we apply the heuristic described in the block comment for
	* zfs_metaslab_condense_block_threshold - we only condense if the space used
	* is greater than a threshold number of blocks.
	*/
	static boolean_t
	metaslab_should_condense(metaslab_t *msp)
	{
	space_map_t *sm = msp->ms_sm;
	vdev_t *vd = msp->ms_group->mg_vd;
	uint64_t vdev_blocksize = 1 << vd->vdev_ashift;

	ASSERT(MUTEX_HELD(&msp->ms_lock));
	ASSERT(msp->ms_loaded);
	ASSERT(sm != NULL);
	ASSERT3U(spa_sync_pass(vd->vdev_spa), ==, 1);

	/*
	* We always condense metaslabs that are empty and metaslabs for
	* which a condense request has been made.
	*/
	if (range_tree_numsegs(msp->ms_allocatable) == 0 \|\|
	msp->ms_condense_wanted)
	return (B_TRUE);

	uint64_t record_size = MAX(sm->sm_blksz, vdev_blocksize);
	uint64_t object_size = space_map_length(sm);
	uint64_t optimal_size = space_map_estimate_optimal_size(sm,
	msp->ms_allocatable, SM_NO_VDEVID);

	return (object_size >= (optimal_size * zfs_condense_pct / 100) &&
	object_size > zfs_metaslab_condense_block_threshold * record_size);
	}

	/*
	* Condense the on-disk space map representation to its minimized form.
	* The minimized form consists of a small number of allocations followed
	* by the entries of the free range tree (ms_allocatable). The condensed
	* spacemap contains all the entries of previous TXGs (including those in
	* the pool-wide log spacemaps; thus this is effectively a superset of
	* metaslab_flush()), but this TXG's entries still need to be written.
	*/
	static void
	metaslab_condense(metaslab_t msp, dmu_tx_t tx)
	{
	range_tree_t *condense_tree;
	space_map_t *sm = msp->ms_sm;
	uint64_t txg = dmu_tx_get_txg(tx);
	spa_t *spa = msp->ms_group->mg_vd->vdev_spa;

	ASSERT(MUTEX_HELD(&msp->ms_lock));
	ASSERT(msp->ms_loaded);
	ASSERT(msp->ms_sm != NULL);

	/*
	* In order to condense the space map, we need to change it so it
	* only describes which segments are currently allocated and free.
	*
	* All the current free space resides in the ms_allocatable, all
	* the ms_defer trees, and all the ms_allocating trees. We ignore
	* ms_freed because it is empty because we're in sync pass 1. We
	* ignore ms_freeing because these changes are not yet reflected
	* in the spacemap (they will be written later this txg).
	*
	* So to truncate the space map to represent all the entries of
	* previous TXGs we do the following:
	*
	* 1] We create a range tree (condense tree) that is 100% empty.
	* 2] We add to it all segments found in the ms_defer trees
	* as those segments are marked as free in the original space
	* map. We do the same with the ms_allocating trees for the same
	* reason. Adding these segments should be a relatively
	* inexpensive operation since we expect these trees to have a
	* small number of nodes.
	* 3] We vacate any unflushed allocs, since they are not frees we
	* need to add to the condense tree. Then we vacate any
	* unflushed frees as they should already be part of ms_allocatable.
	* 4] At this point, we would ideally like to add all segments
	* in the ms_allocatable tree from the condense tree. This way
	* we would write all the entries of the condense tree as the
	* condensed space map, which would only contain freed
	* segments with everything else assumed to be allocated.
	*
	* Doing so can be prohibitively expensive as ms_allocatable can
	* be large, and therefore computationally expensive to add to
	* the condense_tree. Instead we first sync out an entry marking
	* everything as allocated, then the condense_tree and then the
	* ms_allocatable, in the condensed space map. While this is not
	* optimal, it is typically close to optimal and more importantly
	* much cheaper to compute.
	*
	* 5] Finally, as both of the unflushed trees were written to our
	* new and condensed metaslab space map, we basically flushed
	* all the unflushed changes to disk, thus we call
	* metaslab_flush_update().
	*/
	ASSERT3U(spa_sync_pass(spa), ==, 1);
	ASSERT(range_tree_is_empty(msp->ms_freed)); /* since it is pass 1 */

	zfs_dbgmsg("condensing: txg %llu, msp[%llu] %px, vdev id %llu, "
	"spa %s, smp size %llu, segments %lu, forcing condense=%s", txg,
	msp->ms_id, msp, msp->ms_group->mg_vd->vdev_id,
	spa->spa_name, space_map_length(msp->ms_sm),
	range_tree_numsegs(msp->ms_allocatable),
	msp->ms_condense_wanted ? "TRUE" : "FALSE");

	msp->ms_condense_wanted = B_FALSE;

	range_seg_type_t type;
	uint64_t shift, start;
	type = metaslab_calculate_range_tree_type(msp->ms_group->mg_vd, msp,
	&start, &shift);

	condense_tree = range_tree_create(NULL, type, NULL, start, shift);

	for (int t = 0; t < TXG_DEFER_SIZE; t++) {
	range_tree_walk(msp->ms_defer[t],
	range_tree_add, condense_tree);
	}

	for (int t = 0; t < TXG_CONCURRENT_STATES; t++) {
	range_tree_walk(msp->ms_allocating[(txg + t) & TXG_MASK],
	range_tree_add, condense_tree);
	}

	ASSERT3U(spa->spa_unflushed_stats.sus_memused, >=,
	metaslab_unflushed_changes_memused(msp));
	spa->spa_unflushed_stats.sus_memused -=
	metaslab_unflushed_changes_memused(msp);
	range_tree_vacate(msp->ms_unflushed_allocs, NULL, NULL);
	range_tree_vacate(msp->ms_unflushed_frees, NULL, NULL);

	/*
	* We're about to drop the metaslab's lock thus allowing other
	* consumers to change it's content. Set the metaslab's ms_condensing
	* flag to ensure that allocations on this metaslab do not occur
	* while we're in the middle of committing it to disk. This is only
	* critical for ms_allocatable as all other range trees use per TXG
	* views of their content.
	*/
	msp->ms_condensing = B_TRUE;

	mutex_exit(&msp->ms_lock);
	uint64_t object = space_map_object(msp->ms_sm);
	space_map_truncate(sm,
	spa_feature_is_enabled(spa, SPA_FEATURE_LOG_SPACEMAP) ?
	zfs_metaslab_sm_blksz_with_log : zfs_metaslab_sm_blksz_no_log, tx);

	/*
	* space_map_truncate() may have reallocated the spacemap object.
	* If so, update the vdev_ms_array.
	*/
	if (space_map_object(msp->ms_sm) != object) {
	object = space_map_object(msp->ms_sm);
	dmu_write(spa->spa_meta_objset,
	msp->ms_group->mg_vd->vdev_ms_array, sizeof (uint64_t) *
	msp->ms_id, sizeof (uint64_t), &object, tx);
	}

	/*
	* Note:
	* When the log space map feature is enabled, each space map will
	* always have ALLOCS followed by FREES for each sync pass. This is
	* typically true even when the log space map feature is disabled,
	* except from the case where a metaslab goes through metaslab_sync()
	* and gets condensed. In that case the metaslab's space map will have
	* ALLOCS followed by FREES (due to condensing) followed by ALLOCS
	* followed by FREES (due to space_map_write() in metaslab_sync()) for
	* sync pass 1.
	*/
	range_tree_t *tmp_tree = range_tree_create(NULL, type, NULL, start,
	shift);
	range_tree_add(tmp_tree, msp->ms_start, msp->ms_size);
	space_map_write(sm, tmp_tree, SM_ALLOC, SM_NO_VDEVID, tx);
	space_map_write(sm, msp->ms_allocatable, SM_FREE, SM_NO_VDEVID, tx);
	space_map_write(sm, condense_tree, SM_FREE, SM_NO_VDEVID, tx);

	range_tree_vacate(condense_tree, NULL, NULL);
	range_tree_destroy(condense_tree);
	range_tree_vacate(tmp_tree, NULL, NULL);
	range_tree_destroy(tmp_tree);
	mutex_enter(&msp->ms_lock);

	msp->ms_condensing = B_FALSE;
	metaslab_flush_update(msp, tx);
	}

	/*
	* Called when the metaslab has been flushed (its own spacemap now reflects
	* all the contents of the pool-wide spacemap log). Updates the metaslab's
	* metadata and any pool-wide related log space map data (e.g. summary,
	* obsolete logs, etc..) to reflect that.
	*/
	static void
	metaslab_flush_update(metaslab_t msp, dmu_tx_t tx)
	{
	metaslab_group_t *mg = msp->ms_group;
	spa_t *spa = mg->mg_vd->vdev_spa;

	ASSERT(MUTEX_HELD(&msp->ms_lock));

	ASSERT3U(spa_sync_pass(spa), ==, 1);
	ASSERT(range_tree_is_empty(msp->ms_unflushed_allocs));
	ASSERT(range_tree_is_empty(msp->ms_unflushed_frees));

	/*
	* Just because a metaslab got flushed, that doesn't mean that
	* it will pass through metaslab_sync_done(). Thus, make sure to
	* update ms_synced_length here in case it doesn't.
	*/
	msp->ms_synced_length = space_map_length(msp->ms_sm);

	/*
	* We may end up here from metaslab_condense() without the
	* feature being active. In that case this is a no-op.
	*/
	if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP))
	return;

	ASSERT(spa_syncing_log_sm(spa) != NULL);
	ASSERT(msp->ms_sm != NULL);
	ASSERT(metaslab_unflushed_txg(msp) != 0);
	ASSERT3P(avl_find(&spa->spa_metaslabs_by_flushed, msp, NULL), ==, msp);

	VERIFY3U(tx->tx_txg, <=, spa_final_dirty_txg(spa));

	/* update metaslab's position in our flushing tree */
	uint64_t ms_prev_flushed_txg = metaslab_unflushed_txg(msp);
	mutex_enter(&spa->spa_flushed_ms_lock);
	avl_remove(&spa->spa_metaslabs_by_flushed, msp);
	metaslab_set_unflushed_txg(msp, spa_syncing_txg(spa), tx);
	avl_add(&spa->spa_metaslabs_by_flushed, msp);
	mutex_exit(&spa->spa_flushed_ms_lock);

	/* update metaslab counts of spa_log_sm_t nodes */
	spa_log_sm_decrement_mscount(spa, ms_prev_flushed_txg);
	spa_log_sm_increment_current_mscount(spa);

	/* cleanup obsolete logs if any */
	uint64_t log_blocks_before = spa_log_sm_nblocks(spa);
	spa_cleanup_old_sm_logs(spa, tx);
	uint64_t log_blocks_after = spa_log_sm_nblocks(spa);
	VERIFY3U(log_blocks_after, <=, log_blocks_before);

	/* update log space map summary */
	uint64_t blocks_gone = log_blocks_before - log_blocks_after;
	spa_log_summary_add_flushed_metaslab(spa);
	spa_log_summary_decrement_mscount(spa, ms_prev_flushed_txg);
	spa_log_summary_decrement_blkcount(spa, blocks_gone);
	}

	boolean_t
	metaslab_flush(metaslab_t msp, dmu_tx_t tx)
	{
	spa_t *spa = msp->ms_group->mg_vd->vdev_spa;

	ASSERT(MUTEX_HELD(&msp->ms_lock));
	ASSERT3U(spa_sync_pass(spa), ==, 1);
	ASSERT(spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP));

	ASSERT(msp->ms_sm != NULL);
	ASSERT(metaslab_unflushed_txg(msp) != 0);
	ASSERT(avl_find(&spa->spa_metaslabs_by_flushed, msp, NULL) != NULL);

	/*
	* There is nothing wrong with flushing the same metaslab twice, as
	* this codepath should work on that case. However, the current
	* flushing scheme makes sure to avoid this situation as we would be
	* making all these calls without having anything meaningful to write
	* to disk. We assert this behavior here.
	*/
	ASSERT3U(metaslab_unflushed_txg(msp), <, dmu_tx_get_txg(tx));

	/*
	* We can not flush while loading, because then we would
	* not load the ms_unflushed_{allocs,frees}.
	*/
	if (msp->ms_loading)
	return (B_FALSE);

	metaslab_verify_space(msp, dmu_tx_get_txg(tx));
	metaslab_verify_weight_and_frag(msp);

	/*
	* Metaslab condensing is effectively flushing. Therefore if the
	* metaslab can be condensed we can just condense it instead of
	* flushing it.
	*
	* Note that metaslab_condense() does call metaslab_flush_update()
	* so we can just return immediately after condensing. We also
	* don't need to care about setting ms_flushing or broadcasting
	* ms_flush_cv, even if we temporarily drop the ms_lock in
	* metaslab_condense(), as the metaslab is already loaded.
	*/
	if (msp->ms_loaded && metaslab_should_condense(msp)) {
	metaslab_group_t *mg = msp->ms_group;

	/*
	* For all histogram operations below refer to the
	* comments of metaslab_sync() where we follow a
	* similar procedure.
	*/
	metaslab_group_histogram_verify(mg);
	metaslab_class_histogram_verify(mg->mg_class);
	metaslab_group_histogram_remove(mg, msp);

	metaslab_condense(msp, tx);

	space_map_histogram_clear(msp->ms_sm);
	space_map_histogram_add(msp->ms_sm, msp->ms_allocatable, tx);
	ASSERT(range_tree_is_empty(msp->ms_freed));
	for (int t = 0; t < TXG_DEFER_SIZE; t++) {
	space_map_histogram_add(msp->ms_sm,
	msp->ms_defer[t], tx);
	}
	metaslab_aux_histograms_update(msp);

	metaslab_group_histogram_add(mg, msp);
	metaslab_group_histogram_verify(mg);
	metaslab_class_histogram_verify(mg->mg_class);

	metaslab_verify_space(msp, dmu_tx_get_txg(tx));

	/*
	* Since we recreated the histogram (and potentially
	* the ms_sm too while condensing) ensure that the
	* weight is updated too because we are not guaranteed
	* that this metaslab is dirty and will go through
	* metaslab_sync_done().
	*/
	metaslab_recalculate_weight_and_sort(msp);
	return (B_TRUE);
	}

	msp->ms_flushing = B_TRUE;
	uint64_t sm_len_before = space_map_length(msp->ms_sm);

	mutex_exit(&msp->ms_lock);
	space_map_write(msp->ms_sm, msp->ms_unflushed_allocs, SM_ALLOC,
	SM_NO_VDEVID, tx);
	space_map_write(msp->ms_sm, msp->ms_unflushed_frees, SM_FREE,
	SM_NO_VDEVID, tx);
	mutex_enter(&msp->ms_lock);

	uint64_t sm_len_after = space_map_length(msp->ms_sm);
	if (zfs_flags & ZFS_DEBUG_LOG_SPACEMAP) {
	zfs_dbgmsg("flushing: txg %llu, spa %s, vdev_id %llu, "
	"ms_id %llu, unflushed_allocs %llu, unflushed_frees %llu, "
	"appended %llu bytes", dmu_tx_get_txg(tx), spa_name(spa),
	msp->ms_group->mg_vd->vdev_id, msp->ms_id,
	range_tree_space(msp->ms_unflushed_allocs),
	range_tree_space(msp->ms_unflushed_frees),
	(sm_len_after - sm_len_before));
	}

	ASSERT3U(spa->spa_unflushed_stats.sus_memused, >=,
	metaslab_unflushed_changes_memused(msp));
	spa->spa_unflushed_stats.sus_memused -=
	metaslab_unflushed_changes_memused(msp);
	range_tree_vacate(msp->ms_unflushed_allocs, NULL, NULL);
	range_tree_vacate(msp->ms_unflushed_frees, NULL, NULL);

	metaslab_verify_space(msp, dmu_tx_get_txg(tx));
	metaslab_verify_weight_and_frag(msp);

	metaslab_flush_update(msp, tx);

	metaslab_verify_space(msp, dmu_tx_get_txg(tx));
	metaslab_verify_weight_and_frag(msp);

	msp->ms_flushing = B_FALSE;
	cv_broadcast(&msp->ms_flush_cv);
	return (B_TRUE);
	}

	/*
	* Write a metaslab to disk in the context of the specified transaction group.
	*/
	void
	metaslab_sync(metaslab_t *msp, uint64_t txg)
	{
	metaslab_group_t *mg = msp->ms_group;
	vdev_t *vd = mg->mg_vd;
	spa_t *spa = vd->vdev_spa;
	objset_t *mos = spa_meta_objset(spa);
	range_tree_t *alloctree = msp->ms_allocating[txg & TXG_MASK];
	dmu_tx_t *tx;

	ASSERT(!vd->vdev_ishole);

	/*
	* This metaslab has just been added so there's no work to do now.
	*/
	if (msp->ms_new) {
	ASSERT0(range_tree_space(alloctree));
	ASSERT0(range_tree_space(msp->ms_freeing));
	ASSERT0(range_tree_space(msp->ms_freed));
	ASSERT0(range_tree_space(msp->ms_checkpointing));
	ASSERT0(range_tree_space(msp->ms_trim));
	return;
	}

	/*
	* Normally, we don't want to process a metaslab if there are no
	* allocations or frees to perform. However, if the metaslab is being
	* forced to condense, it's loaded and we're not beyond the final
	* dirty txg, we need to let it through. Not condensing beyond the
	* final dirty txg prevents an issue where metaslabs that need to be
	* condensed but were loaded for other reasons could cause a panic
	* here. By only checking the txg in that branch of the conditional,
	* we preserve the utility of the VERIFY statements in all other
	* cases.
	*/
	if (range_tree_is_empty(alloctree) &&
	range_tree_is_empty(msp->ms_freeing) &&
	range_tree_is_empty(msp->ms_checkpointing) &&
	!(msp->ms_loaded && msp->ms_condense_wanted &&
	txg <= spa_final_dirty_txg(spa)))
	return;


	VERIFY3U(txg, <=, spa_final_dirty_txg(spa));

	/*
	* The only state that can actually be changing concurrently
	* with metaslab_sync() is the metaslab's ms_allocatable. No
	* other thread can be modifying this txg's alloc, freeing,
	* freed, or space_map_phys_t. We drop ms_lock whenever we
	* could call into the DMU, because the DMU can call down to
	* us (e.g. via zio_free()) at any time.
	*
	* The spa_vdev_remove_thread() can be reading metaslab state
	* concurrently, and it is locked out by the ms_sync_lock.
	* Note that the ms_lock is insufficient for this, because it
	* is dropped by space_map_write().
	*/
	tx = dmu_tx_create_assigned(spa_get_dsl(spa), txg);

	/*
	* Generate a log space map if one doesn't exist already.
	*/
	spa_generate_syncing_log_sm(spa, tx);

	if (msp->ms_sm == NULL) {
	uint64_t new_object = space_map_alloc(mos,
	spa_feature_is_enabled(spa, SPA_FEATURE_LOG_SPACEMAP) ?
	zfs_metaslab_sm_blksz_with_log :
	zfs_metaslab_sm_blksz_no_log, tx);
	VERIFY3U(new_object, !=, 0);

	dmu_write(mos, vd->vdev_ms_array, sizeof (uint64_t) *
	msp->ms_id, sizeof (uint64_t), &new_object, tx);

	VERIFY0(space_map_open(&msp->ms_sm, mos, new_object,
	msp->ms_start, msp->ms_size, vd->vdev_ashift));
	ASSERT(msp->ms_sm != NULL);

	ASSERT(range_tree_is_empty(msp->ms_unflushed_allocs));
	ASSERT(range_tree_is_empty(msp->ms_unflushed_frees));
	ASSERT0(metaslab_allocated_space(msp));
	}

	if (metaslab_unflushed_txg(msp) == 0 &&
	spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) {
	ASSERT(spa_syncing_log_sm(spa) != NULL);

	metaslab_set_unflushed_txg(msp, spa_syncing_txg(spa), tx);
	spa_log_sm_increment_current_mscount(spa);
	spa_log_summary_add_flushed_metaslab(spa);

	ASSERT(msp->ms_sm != NULL);
	mutex_enter(&spa->spa_flushed_ms_lock);
	avl_add(&spa->spa_metaslabs_by_flushed, msp);
	mutex_exit(&spa->spa_flushed_ms_lock);

	ASSERT(range_tree_is_empty(msp->ms_unflushed_allocs));
	ASSERT(range_tree_is_empty(msp->ms_unflushed_frees));
	}

	if (!range_tree_is_empty(msp->ms_checkpointing) &&
	vd->vdev_checkpoint_sm == NULL) {
	ASSERT(spa_has_checkpoint(spa));

	uint64_t new_object = space_map_alloc(mos,
	zfs_vdev_standard_sm_blksz, tx);
	VERIFY3U(new_object, !=, 0);

	VERIFY0(space_map_open(&vd->vdev_checkpoint_sm,
	mos, new_object, 0, vd->vdev_asize, vd->vdev_ashift));
	ASSERT3P(vd->vdev_checkpoint_sm, !=, NULL);

	/*
	* We save the space map object as an entry in vdev_top_zap
	* so it can be retrieved when the pool is reopened after an
	* export or through zdb.
	*/
	VERIFY0(zap_add(vd->vdev_spa->spa_meta_objset,
	vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM,
	sizeof (new_object), 1, &new_object, tx));
	}

	mutex_enter(&msp->ms_sync_lock);
	mutex_enter(&msp->ms_lock);

	/*
	* Note: metaslab_condense() clears the space map's histogram.
	* Therefore we must verify and remove this histogram before
	* condensing.
	*/
	metaslab_group_histogram_verify(mg);
	metaslab_class_histogram_verify(mg->mg_class);
	metaslab_group_histogram_remove(mg, msp);

	if (spa->spa_sync_pass == 1 && msp->ms_loaded &&
	metaslab_should_condense(msp))
	metaslab_condense(msp, tx);

	/*
	* We'll be going to disk to sync our space accounting, thus we
	* drop the ms_lock during that time so allocations coming from
	* open-context (ZIL) for future TXGs do not block.
	*/
	mutex_exit(&msp->ms_lock);
	space_map_t *log_sm = spa_syncing_log_sm(spa);
	if (log_sm != NULL) {
	ASSERT(spa_feature_is_enabled(spa, SPA_FEATURE_LOG_SPACEMAP));

	space_map_write(log_sm, alloctree, SM_ALLOC,
	vd->vdev_id, tx);
	space_map_write(log_sm, msp->ms_freeing, SM_FREE,
	vd->vdev_id, tx);
	mutex_enter(&msp->ms_lock);

	ASSERT3U(spa->spa_unflushed_stats.sus_memused, >=,
	metaslab_unflushed_changes_memused(msp));
	spa->spa_unflushed_stats.sus_memused -=
	metaslab_unflushed_changes_memused(msp);
	range_tree_remove_xor_add(alloctree,
	msp->ms_unflushed_frees, msp->ms_unflushed_allocs);
	range_tree_remove_xor_add(msp->ms_freeing,
	msp->ms_unflushed_allocs, msp->ms_unflushed_frees);
	spa->spa_unflushed_stats.sus_memused +=
	metaslab_unflushed_changes_memused(msp);
	} else {
	ASSERT(!spa_feature_is_enabled(spa, SPA_FEATURE_LOG_SPACEMAP));

	space_map_write(msp->ms_sm, alloctree, SM_ALLOC,
	SM_NO_VDEVID, tx);
	space_map_write(msp->ms_sm, msp->ms_freeing, SM_FREE,
	SM_NO_VDEVID, tx);
	mutex_enter(&msp->ms_lock);
	}

	msp->ms_allocated_space += range_tree_space(alloctree);
	ASSERT3U(msp->ms_allocated_space, >=,
	range_tree_space(msp->ms_freeing));
	msp->ms_allocated_space -= range_tree_space(msp->ms_freeing);

	if (!range_tree_is_empty(msp->ms_checkpointing)) {
	ASSERT(spa_has_checkpoint(spa));
	ASSERT3P(vd->vdev_checkpoint_sm, !=, NULL);

	/*
	* Since we are doing writes to disk and the ms_checkpointing
	* tree won't be changing during that time, we drop the
	* ms_lock while writing to the checkpoint space map, for the
	* same reason mentioned above.
	*/
	mutex_exit(&msp->ms_lock);
	space_map_write(vd->vdev_checkpoint_sm,
	msp->ms_checkpointing, SM_FREE, SM_NO_VDEVID, tx);
	mutex_enter(&msp->ms_lock);

	spa->spa_checkpoint_info.sci_dspace +=
	range_tree_space(msp->ms_checkpointing);
	vd->vdev_stat.vs_checkpoint_space +=
	range_tree_space(msp->ms_checkpointing);
	ASSERT3U(vd->vdev_stat.vs_checkpoint_space, ==,
	-space_map_allocated(vd->vdev_checkpoint_sm));

	range_tree_vacate(msp->ms_checkpointing, NULL, NULL);
	}

	if (msp->ms_loaded) {
	/*
	* When the space map is loaded, we have an accurate
	* histogram in the range tree. This gives us an opportunity
	* to bring the space map's histogram up-to-date so we clear
	* it first before updating it.
	*/
	space_map_histogram_clear(msp->ms_sm);
	space_map_histogram_add(msp->ms_sm, msp->ms_allocatable, tx);

	/*
	* Since we've cleared the histogram we need to add back
	* any free space that has already been processed, plus
	* any deferred space. This allows the on-disk histogram
	* to accurately reflect all free space even if some space
	* is not yet available for allocation (i.e. deferred).
	*/
	space_map_histogram_add(msp->ms_sm, msp->ms_freed, tx);

	/*
	* Add back any deferred free space that has not been
	* added back into the in-core free tree yet. This will
	* ensure that we don't end up with a space map histogram
	* that is completely empty unless the metaslab is fully
	* allocated.
	*/
	for (int t = 0; t < TXG_DEFER_SIZE; t++) {
	space_map_histogram_add(msp->ms_sm,
	msp->ms_defer[t], tx);
	}
	}

	/*
	* Always add the free space from this sync pass to the space
	* map histogram. We want to make sure that the on-disk histogram
	* accounts for all free space. If the space map is not loaded,
	* then we will lose some accuracy but will correct it the next
	* time we load the space map.
	*/
	space_map_histogram_add(msp->ms_sm, msp->ms_freeing, tx);
	metaslab_aux_histograms_update(msp);

	metaslab_group_histogram_add(mg, msp);
	metaslab_group_histogram_verify(mg);
	metaslab_class_histogram_verify(mg->mg_class);

	/*
	* For sync pass 1, we avoid traversing this txg's free range tree
	* and instead will just swap the pointers for freeing and freed.
	* We can safely do this since the freed_tree is guaranteed to be
	* empty on the initial pass.
	*
	* Keep in mind that even if we are currently using a log spacemap
	* we want current frees to end up in the ms_allocatable (but not
	* get appended to the ms_sm) so their ranges can be reused as usual.
	*/
	if (spa_sync_pass(spa) == 1) {
	range_tree_swap(&msp->ms_freeing, &msp->ms_freed);
	ASSERT0(msp->ms_allocated_this_txg);
	} else {
	range_tree_vacate(msp->ms_freeing,
	range_tree_add, msp->ms_freed);
	}
	msp->ms_allocated_this_txg += range_tree_space(alloctree);
	range_tree_vacate(alloctree, NULL, NULL);

	ASSERT0(range_tree_space(msp->ms_allocating[txg & TXG_MASK]));
	ASSERT0(range_tree_space(msp->ms_allocating[TXG_CLEAN(txg)
	& TXG_MASK]));
	ASSERT0(range_tree_space(msp->ms_freeing));
	ASSERT0(range_tree_space(msp->ms_checkpointing));

	mutex_exit(&msp->ms_lock);

	/*
	* Verify that the space map object ID has been recorded in the
	* vdev_ms_array.
	*/
	uint64_t object;
	VERIFY0(dmu_read(mos, vd->vdev_ms_array,
	msp->ms_id * sizeof (uint64_t), sizeof (uint64_t), &object, 0));
	VERIFY3U(object, ==, space_map_object(msp->ms_sm));

	mutex_exit(&msp->ms_sync_lock);
	dmu_tx_commit(tx);
	}

	static void
	metaslab_evict(metaslab_t *msp, uint64_t txg)
	{
	if (!msp->ms_loaded \|\| msp->ms_disabled != 0)
	return;

	for (int t = 1; t < TXG_CONCURRENT_STATES; t++) {
	VERIFY0(range_tree_space(
	msp->ms_allocating[(txg + t) & TXG_MASK]));
	}
	if (msp->ms_allocator != -1)
	metaslab_passivate(msp, msp->ms_weight & ~METASLAB_ACTIVE_MASK);

	if (!metaslab_debug_unload)
	metaslab_unload(msp);
	}

	/*
	* Called after a transaction group has completely synced to mark
	* all of the metaslab's free space as usable.
	*/
	void
	metaslab_sync_done(metaslab_t *msp, uint64_t txg)
	{
	metaslab_group_t *mg = msp->ms_group;
	vdev_t *vd = mg->mg_vd;
	spa_t *spa = vd->vdev_spa;
	range_tree_t **defer_tree;
	int64_t alloc_delta, defer_delta;
	boolean_t defer_allowed = B_TRUE;

	ASSERT(!vd->vdev_ishole);

	mutex_enter(&msp->ms_lock);

	if (msp->ms_new) {
	/* this is a new metaslab, add its capacity to the vdev */
	metaslab_space_update(vd, mg->mg_class, 0, 0, msp->ms_size);

	/* there should be no allocations nor frees at this point */
	VERIFY0(msp->ms_allocated_this_txg);
	VERIFY0(range_tree_space(msp->ms_freed));
	}

	ASSERT0(range_tree_space(msp->ms_freeing));
	ASSERT0(range_tree_space(msp->ms_checkpointing));

	defer_tree = &msp->ms_defer[txg % TXG_DEFER_SIZE];

	uint64_t free_space = metaslab_class_get_space(spa_normal_class(spa)) -
	metaslab_class_get_alloc(spa_normal_class(spa));
	if (free_space <= spa_get_slop_space(spa) \|\| vd->vdev_removing) {
	defer_allowed = B_FALSE;
	}

	defer_delta = 0;
	alloc_delta = msp->ms_allocated_this_txg -
	range_tree_space(msp->ms_freed);

	if (defer_allowed) {
	defer_delta = range_tree_space(msp->ms_freed) -
	range_tree_space(*defer_tree);
	} else {
	defer_delta -= range_tree_space(*defer_tree);
	}
	metaslab_space_update(vd, mg->mg_class, alloc_delta + defer_delta,
	defer_delta, 0);

	if (spa_syncing_log_sm(spa) == NULL) {
	/*
	* If there's a metaslab_load() in progress and we don't have
	* a log space map, it means that we probably wrote to the
	* metaslab's space map. If this is the case, we need to
	* make sure that we wait for the load to complete so that we
	* have a consistent view at the in-core side of the metaslab.
	*/
	metaslab_load_wait(msp);
	} else {
	ASSERT(spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP));
	}

	/*
	* When auto-trimming is enabled, free ranges which are added to
	* ms_allocatable are also be added to ms_trim. The ms_trim tree is
	* periodically consumed by the vdev_autotrim_thread() which issues
	* trims for all ranges and then vacates the tree. The ms_trim tree
	* can be discarded at any time with the sole consequence of recent
	* frees not being trimmed.
	*/
	if (spa_get_autotrim(spa) == SPA_AUTOTRIM_ON) {
	range_tree_walk(*defer_tree, range_tree_add, msp->ms_trim);
	if (!defer_allowed) {
	range_tree_walk(msp->ms_freed, range_tree_add,
	msp->ms_trim);
	}
	} else {
	range_tree_vacate(msp->ms_trim, NULL, NULL);
	}

	/*
	* Move the frees from the defer_tree back to the free
	* range tree (if it's loaded). Swap the freed_tree and
	* the defer_tree -- this is safe to do because we've
	* just emptied out the defer_tree.
	*/
	range_tree_vacate(*defer_tree,
	msp->ms_loaded ? range_tree_add : NULL, msp->ms_allocatable);
	if (defer_allowed) {
	range_tree_swap(&msp->ms_freed, defer_tree);
	} else {
	range_tree_vacate(msp->ms_freed,
	msp->ms_loaded ? range_tree_add : NULL,
	msp->ms_allocatable);
	}

	msp->ms_synced_length = space_map_length(msp->ms_sm);

	msp->ms_deferspace += defer_delta;
	ASSERT3S(msp->ms_deferspace, >=, 0);
	ASSERT3S(msp->ms_deferspace, <=, msp->ms_size);
	if (msp->ms_deferspace != 0) {
	/*
	* Keep syncing this metaslab until all deferred frees
	* are back in circulation.
	*/
	vdev_dirty(vd, VDD_METASLAB, msp, txg + 1);
	}
	metaslab_aux_histograms_update_done(msp, defer_allowed);

	if (msp->ms_new) {
	msp->ms_new = B_FALSE;
	mutex_enter(&mg->mg_lock);
	mg->mg_ms_ready++;
	mutex_exit(&mg->mg_lock);
	}

	/*
	* Re-sort metaslab within its group now that we've adjusted
	* its allocatable space.
	*/
	metaslab_recalculate_weight_and_sort(msp);

	ASSERT0(range_tree_space(msp->ms_allocating[txg & TXG_MASK]));
	ASSERT0(range_tree_space(msp->ms_freeing));
	ASSERT0(range_tree_space(msp->ms_freed));
	ASSERT0(range_tree_space(msp->ms_checkpointing));
	msp->ms_allocating_total -= msp->ms_allocated_this_txg;
	msp->ms_allocated_this_txg = 0;
	mutex_exit(&msp->ms_lock);
	}

	void
	metaslab_sync_reassess(metaslab_group_t *mg)
	{
	spa_t *spa = mg->mg_class->mc_spa;

	spa_config_enter(spa, SCL_ALLOC, FTAG, RW_READER);
	metaslab_group_alloc_update(mg);
	mg->mg_fragmentation = metaslab_group_fragmentation(mg);

	/*
	* Preload the next potential metaslabs but only on active
	* metaslab groups. We can get into a state where the metaslab
	* is no longer active since we dirty metaslabs as we remove a
	* a device, thus potentially making the metaslab group eligible
	* for preloading.
	*/
	if (mg->mg_activation_count > 0) {
	metaslab_group_preload(mg);
	}
	spa_config_exit(spa, SCL_ALLOC, FTAG);
	}

	/*
	* When writing a ditto block (i.e. more than one DVA for a given BP) on
	* the same vdev as an existing DVA of this BP, then try to allocate it
	* on a different metaslab than existing DVAs (i.e. a unique metaslab).
	*/
	static boolean_t
	metaslab_is_unique(metaslab_t msp, dva_t dva)
	{
	uint64_t dva_ms_id;

	if (DVA_GET_ASIZE(dva) == 0)
	return (B_TRUE);

	if (msp->ms_group->mg_vd->vdev_id != DVA_GET_VDEV(dva))
	return (B_TRUE);

	dva_ms_id = DVA_GET_OFFSET(dva) >> msp->ms_group->mg_vd->vdev_ms_shift;

	return (msp->ms_id != dva_ms_id);
	}

	/*
	* ==========================================================================
	* Metaslab allocation tracing facility
	* ==========================================================================
	*/

	/*
	* Add an allocation trace element to the allocation tracing list.
	*/
	static void
	metaslab_trace_add(zio_alloc_list_t zal, metaslab_group_t mg,
	metaslab_t *msp, uint64_t psize, uint32_t dva_id, uint64_t offset,
	int allocator)
	{
	metaslab_alloc_trace_t *mat;

	if (!metaslab_trace_enabled)
	return;

	/*
	* When the tracing list reaches its maximum we remove
	* the second element in the list before adding a new one.
	* By removing the second element we preserve the original
	* entry as a clue to what allocations steps have already been
	* performed.
	*/
	if (zal->zal_size == metaslab_trace_max_entries) {
	metaslab_alloc_trace_t *mat_next;
	#ifdef ZFS_DEBUG
	panic("too many entries in allocation list");
	#endif
	METASLABSTAT_BUMP(metaslabstat_trace_over_limit);
	zal->zal_size--;
	mat_next = list_next(&zal->zal_list, list_head(&zal->zal_list));
	list_remove(&zal->zal_list, mat_next);
	kmem_cache_free(metaslab_alloc_trace_cache, mat_next);
	}

	mat = kmem_cache_alloc(metaslab_alloc_trace_cache, KM_SLEEP);
	list_link_init(&mat->mat_list_node);
	mat->mat_mg = mg;
	mat->mat_msp = msp;
	mat->mat_size = psize;
	mat->mat_dva_id = dva_id;
	mat->mat_offset = offset;
	mat->mat_weight = 0;
	mat->mat_allocator = allocator;

	if (msp != NULL)
	mat->mat_weight = msp->ms_weight;

	/*
	* The list is part of the zio so locking is not required. Only
	* a single thread will perform allocations for a given zio.
	*/
	list_insert_tail(&zal->zal_list, mat);
	zal->zal_size++;

	ASSERT3U(zal->zal_size, <=, metaslab_trace_max_entries);
	}

	void
	metaslab_trace_init(zio_alloc_list_t *zal)
	{
	list_create(&zal->zal_list, sizeof (metaslab_alloc_trace_t),
	offsetof(metaslab_alloc_trace_t, mat_list_node));
	zal->zal_size = 0;
	}

	void
	metaslab_trace_fini(zio_alloc_list_t *zal)
	{
	metaslab_alloc_trace_t *mat;

	while ((mat = list_remove_head(&zal->zal_list)) != NULL)
	kmem_cache_free(metaslab_alloc_trace_cache, mat);
	list_destroy(&zal->zal_list);
	zal->zal_size = 0;
	}

	/*
	* ==========================================================================
	* Metaslab block operations
	* ==========================================================================
	*/

	static void
	metaslab_group_alloc_increment(spa_t spa, uint64_t vdev, void tag, int flags,
	int allocator)
	{
	if (!(flags & METASLAB_ASYNC_ALLOC) \|\|
	(flags & METASLAB_DONT_THROTTLE))
	return;

	metaslab_group_t *mg = vdev_lookup_top(spa, vdev)->vdev_mg;
	if (!mg->mg_class->mc_alloc_throttle_enabled)
	return;

	metaslab_group_allocator_t *mga = &mg->mg_allocator[allocator];
	(void) zfs_refcount_add(&mga->mga_alloc_queue_depth, tag);
	}

	static void
	metaslab_group_increment_qdepth(metaslab_group_t *mg, int allocator)
	{
	metaslab_group_allocator_t *mga = &mg->mg_allocator[allocator];
	metaslab_class_allocator_t *mca =
	&mg->mg_class->mc_allocator[allocator];
	uint64_t max = mg->mg_max_alloc_queue_depth;
	uint64_t cur = mga->mga_cur_max_alloc_queue_depth;
	while (cur < max) {
	if (atomic_cas_64(&mga->mga_cur_max_alloc_queue_depth,
	cur, cur + 1) == cur) {
	atomic_inc_64(&mca->mca_alloc_max_slots);
	return;
	}
	cur = mga->mga_cur_max_alloc_queue_depth;
	}
	}

	void
	metaslab_group_alloc_decrement(spa_t spa, uint64_t vdev, void tag, int flags,
	int allocator, boolean_t io_complete)
	{
	if (!(flags & METASLAB_ASYNC_ALLOC) \|\|
	(flags & METASLAB_DONT_THROTTLE))
	return;

	metaslab_group_t *mg = vdev_lookup_top(spa, vdev)->vdev_mg;
	if (!mg->mg_class->mc_alloc_throttle_enabled)
	return;

	metaslab_group_allocator_t *mga = &mg->mg_allocator[allocator];
	(void) zfs_refcount_remove(&mga->mga_alloc_queue_depth, tag);
	if (io_complete)
	metaslab_group_increment_qdepth(mg, allocator);
	}

	void
	metaslab_group_alloc_verify(spa_t spa, const blkptr_t bp, void *tag,
	int allocator)
	{
	#ifdef ZFS_DEBUG
	const dva_t *dva = bp->blk_dva;
	int ndvas = BP_GET_NDVAS(bp);

	for (int d = 0; d < ndvas; d++) {
	uint64_t vdev = DVA_GET_VDEV(&dva[d]);
	metaslab_group_t *mg = vdev_lookup_top(spa, vdev)->vdev_mg;
	metaslab_group_allocator_t *mga = &mg->mg_allocator[allocator];
	VERIFY(zfs_refcount_not_held(&mga->mga_alloc_queue_depth, tag));
	}
	#endif
	}

	static uint64_t
	metaslab_block_alloc(metaslab_t *msp, uint64_t size, uint64_t txg)
	{
	uint64_t start;
	range_tree_t *rt = msp->ms_allocatable;
	metaslab_class_t *mc = msp->ms_group->mg_class;

	ASSERT(MUTEX_HELD(&msp->ms_lock));
	VERIFY(!msp->ms_condensing);
	VERIFY0(msp->ms_disabled);

	start = mc->mc_ops->msop_alloc(msp, size);
	if (start != -1ULL) {
	metaslab_group_t *mg = msp->ms_group;
	vdev_t *vd = mg->mg_vd;

	VERIFY0(P2PHASE(start, 1ULL << vd->vdev_ashift));
	VERIFY0(P2PHASE(size, 1ULL << vd->vdev_ashift));
	VERIFY3U(range_tree_space(rt) - size, <=, msp->ms_size);
	range_tree_remove(rt, start, size);
	range_tree_clear(msp->ms_trim, start, size);

	if (range_tree_is_empty(msp->ms_allocating[txg & TXG_MASK]))
	vdev_dirty(mg->mg_vd, VDD_METASLAB, msp, txg);

	range_tree_add(msp->ms_allocating[txg & TXG_MASK], start, size);
	msp->ms_allocating_total += size;

	/* Track the last successful allocation */
	msp->ms_alloc_txg = txg;
	metaslab_verify_space(msp, txg);
	}

	/*
	* Now that we've attempted the allocation we need to update the
	* metaslab's maximum block size since it may have changed.
	*/
	msp->ms_max_size = metaslab_largest_allocatable(msp);
	return (start);
	}

	/*
	* Find the metaslab with the highest weight that is less than what we've
	* already tried. In the common case, this means that we will examine each
	* metaslab at most once. Note that concurrent callers could reorder metaslabs
	* by activation/passivation once we have dropped the mg_lock. If a metaslab is
	* activated by another thread, and we fail to allocate from the metaslab we
	* have selected, we may not try the newly-activated metaslab, and instead
	* activate another metaslab. This is not optimal, but generally does not cause
	* any problems (a possible exception being if every metaslab is completely full
	* except for the newly-activated metaslab which we fail to examine).
	*/
	static metaslab_t *
	find_valid_metaslab(metaslab_group_t *mg, uint64_t activation_weight,
	dva_t *dva, int d, boolean_t want_unique, uint64_t asize, int allocator,
	boolean_t try_hard, zio_alloc_list_t zal, metaslab_t search,
	boolean_t *was_active)
	{
	avl_index_t idx;
	avl_tree_t *t = &mg->mg_metaslab_tree;
	metaslab_t *msp = avl_find(t, search, &idx);
	if (msp == NULL)
	msp = avl_nearest(t, idx, AVL_AFTER);

	int tries = 0;
	for (; msp != NULL; msp = AVL_NEXT(t, msp)) {
	int i;

	if (!try_hard && tries > zfs_metaslab_find_max_tries) {
	METASLABSTAT_BUMP(metaslabstat_too_many_tries);
	return (NULL);
	}
	tries++;

	if (!metaslab_should_allocate(msp, asize, try_hard)) {
	metaslab_trace_add(zal, mg, msp, asize, d,
	TRACE_TOO_SMALL, allocator);
	continue;
	}

	/*
	* If the selected metaslab is condensing or disabled,
	* skip it.
	*/
	if (msp->ms_condensing \|\| msp->ms_disabled > 0)
	continue;

	*was_active = msp->ms_allocator != -1;
	/*
	* If we're activating as primary, this is our first allocation
	* from this disk, so we don't need to check how close we are.
	* If the metaslab under consideration was already active,
	* we're getting desperate enough to steal another allocator's
	* metaslab, so we still don't care about distances.
	*/
	if (activation_weight == METASLAB_WEIGHT_PRIMARY \|\| *was_active)
	break;

	for (i = 0; i < d; i++) {
	if (want_unique &&
	!metaslab_is_unique(msp, &dva[i]))
	break; /* try another metaslab */
	}
	if (i == d)
	break;
	}

	if (msp != NULL) {
	search->ms_weight = msp->ms_weight;
	search->ms_start = msp->ms_start + 1;
	search->ms_allocator = msp->ms_allocator;
	search->ms_primary = msp->ms_primary;
	}
	return (msp);
	}

	static void
	metaslab_active_mask_verify(metaslab_t *msp)
	{
	ASSERT(MUTEX_HELD(&msp->ms_lock));

	if ((zfs_flags & ZFS_DEBUG_METASLAB_VERIFY) == 0)
	return;

	if ((msp->ms_weight & METASLAB_ACTIVE_MASK) == 0)
	return;

	if (msp->ms_weight & METASLAB_WEIGHT_PRIMARY) {
	VERIFY0(msp->ms_weight & METASLAB_WEIGHT_SECONDARY);
	VERIFY0(msp->ms_weight & METASLAB_WEIGHT_CLAIM);
	VERIFY3S(msp->ms_allocator, !=, -1);
	VERIFY(msp->ms_primary);
	return;
	}

	if (msp->ms_weight & METASLAB_WEIGHT_SECONDARY) {
	VERIFY0(msp->ms_weight & METASLAB_WEIGHT_PRIMARY);
	VERIFY0(msp->ms_weight & METASLAB_WEIGHT_CLAIM);
	VERIFY3S(msp->ms_allocator, !=, -1);
	VERIFY(!msp->ms_primary);
	return;
	}

	if (msp->ms_weight & METASLAB_WEIGHT_CLAIM) {
	VERIFY0(msp->ms_weight & METASLAB_WEIGHT_PRIMARY);
	VERIFY0(msp->ms_weight & METASLAB_WEIGHT_SECONDARY);
	VERIFY3S(msp->ms_allocator, ==, -1);
	return;
	}
	}

	/* ARGSUSED */
	static uint64_t
	metaslab_group_alloc_normal(metaslab_group_t mg, zio_alloc_list_t zal,
	uint64_t asize, uint64_t txg, boolean_t want_unique, dva_t *dva, int d,
	int allocator, boolean_t try_hard)
	{
	metaslab_t *msp = NULL;
	uint64_t offset = -1ULL;

	uint64_t activation_weight = METASLAB_WEIGHT_PRIMARY;
	for (int i = 0; i < d; i++) {
	if (activation_weight == METASLAB_WEIGHT_PRIMARY &&
	DVA_GET_VDEV(&dva[i]) == mg->mg_vd->vdev_id) {
	activation_weight = METASLAB_WEIGHT_SECONDARY;
	} else if (activation_weight == METASLAB_WEIGHT_SECONDARY &&
	DVA_GET_VDEV(&dva[i]) == mg->mg_vd->vdev_id) {
	activation_weight = METASLAB_WEIGHT_CLAIM;
	break;
	}
	}

	/*
	* If we don't have enough metaslabs active to fill the entire array, we
	* just use the 0th slot.
	*/
	if (mg->mg_ms_ready < mg->mg_allocators * 3)
	allocator = 0;
	metaslab_group_allocator_t *mga = &mg->mg_allocator[allocator];

	ASSERT3U(mg->mg_vd->vdev_ms_count, >=, 2);

	metaslab_t search = kmem_alloc(sizeof (search), KM_SLEEP);
	search->ms_weight = UINT64_MAX;
	search->ms_start = 0;
	/*
	* At the end of the metaslab tree are the already-active metaslabs,
	* first the primaries, then the secondaries. When we resume searching
	* through the tree, we need to consider ms_allocator and ms_primary so
	* we start in the location right after where we left off, and don't
	* accidentally loop forever considering the same metaslabs.
	*/
	search->ms_allocator = -1;
	search->ms_primary = B_TRUE;
	for (;;) {
	boolean_t was_active = B_FALSE;

	mutex_enter(&mg->mg_lock);

	if (activation_weight == METASLAB_WEIGHT_PRIMARY &&
	mga->mga_primary != NULL) {
	msp = mga->mga_primary;

	/*
	* Even though we don't hold the ms_lock for the
	* primary metaslab, those fields should not
	* change while we hold the mg_lock. Thus it is
	* safe to make assertions on them.
	*/
	ASSERT(msp->ms_primary);
	ASSERT3S(msp->ms_allocator, ==, allocator);
	ASSERT(msp->ms_loaded);

	was_active = B_TRUE;
	ASSERT(msp->ms_weight & METASLAB_ACTIVE_MASK);
	} else if (activation_weight == METASLAB_WEIGHT_SECONDARY &&
	mga->mga_secondary != NULL) {
	msp = mga->mga_secondary;

	/*
	* See comment above about the similar assertions
	* for the primary metaslab.
	*/
	ASSERT(!msp->ms_primary);
	ASSERT3S(msp->ms_allocator, ==, allocator);
	ASSERT(msp->ms_loaded);

	was_active = B_TRUE;
	ASSERT(msp->ms_weight & METASLAB_ACTIVE_MASK);
	} else {
	msp = find_valid_metaslab(mg, activation_weight, dva, d,
	want_unique, asize, allocator, try_hard, zal,
	search, &was_active);
	}

	mutex_exit(&mg->mg_lock);
	if (msp == NULL) {
	kmem_free(search, sizeof (*search));
	return (-1ULL);
	}
	mutex_enter(&msp->ms_lock);

	metaslab_active_mask_verify(msp);

	/*
	* This code is disabled out because of issues with
	* tracepoints in non-gpl kernel modules.
	*/
	#if 0
	DTRACE_PROBE3(ms__activation__attempt,
	metaslab_t *, msp, uint64_t, activation_weight,
	boolean_t, was_active);
	#endif

	/*
	* Ensure that the metaslab we have selected is still
	* capable of handling our request. It's possible that
	* another thread may have changed the weight while we
	* were blocked on the metaslab lock. We check the
	* active status first to see if we need to set_selected_txg
	* a new metaslab.
	*/
	if (was_active && !(msp->ms_weight & METASLAB_ACTIVE_MASK)) {
	ASSERT3S(msp->ms_allocator, ==, -1);
	mutex_exit(&msp->ms_lock);
	continue;
	}

	/*
	* If the metaslab was activated for another allocator
	* while we were waiting in the ms_lock above, or it's
	* a primary and we're seeking a secondary (or vice versa),
	* we go back and select a new metaslab.
	*/
	if (!was_active && (msp->ms_weight & METASLAB_ACTIVE_MASK) &&
	(msp->ms_allocator != -1) &&
	(msp->ms_allocator != allocator \|\| ((activation_weight ==
	METASLAB_WEIGHT_PRIMARY) != msp->ms_primary))) {
	ASSERT(msp->ms_loaded);
	ASSERT((msp->ms_weight & METASLAB_WEIGHT_CLAIM) \|\|
	msp->ms_allocator != -1);
	mutex_exit(&msp->ms_lock);
	continue;
	}

	/*
	* This metaslab was used for claiming regions allocated
	* by the ZIL during pool import. Once these regions are
	* claimed we don't need to keep the CLAIM bit set
	* anymore. Passivate this metaslab to zero its activation
	* mask.
	*/
	if (msp->ms_weight & METASLAB_WEIGHT_CLAIM &&
	activation_weight != METASLAB_WEIGHT_CLAIM) {
	ASSERT(msp->ms_loaded);
	ASSERT3S(msp->ms_allocator, ==, -1);
	metaslab_passivate(msp, msp->ms_weight &
	~METASLAB_WEIGHT_CLAIM);
	mutex_exit(&msp->ms_lock);
	continue;
	}

	metaslab_set_selected_txg(msp, txg);

	int activation_error =
	metaslab_activate(msp, allocator, activation_weight);
	metaslab_active_mask_verify(msp);

	/*
	* If the metaslab was activated by another thread for
	* another allocator or activation_weight (EBUSY), or it
	* failed because another metaslab was assigned as primary
	* for this allocator (EEXIST) we continue using this
	* metaslab for our allocation, rather than going on to a
	* worse metaslab (we waited for that metaslab to be loaded
	* after all).
	*
	* If the activation failed due to an I/O error or ENOSPC we
	* skip to the next metaslab.
	*/
	boolean_t activated;
	if (activation_error == 0) {
	activated = B_TRUE;
	} else if (activation_error == EBUSY \|\|
	activation_error == EEXIST) {
	activated = B_FALSE;
	} else {
	mutex_exit(&msp->ms_lock);
	continue;
	}
	ASSERT(msp->ms_loaded);

	/*
	* Now that we have the lock, recheck to see if we should
	* continue to use this metaslab for this allocation. The
	* the metaslab is now loaded so metaslab_should_allocate()
	* can accurately determine if the allocation attempt should
	* proceed.
	*/
	if (!metaslab_should_allocate(msp, asize, try_hard)) {
	/* Passivate this metaslab and select a new one. */
	metaslab_trace_add(zal, mg, msp, asize, d,
	TRACE_TOO_SMALL, allocator);
	goto next;
	}

	/*
	* If this metaslab is currently condensing then pick again
	* as we can't manipulate this metaslab until it's committed
	* to disk. If this metaslab is being initialized, we shouldn't
	* allocate from it since the allocated region might be
	* overwritten after allocation.
	*/
	if (msp->ms_condensing) {
	metaslab_trace_add(zal, mg, msp, asize, d,
	TRACE_CONDENSING, allocator);
	if (activated) {
	metaslab_passivate(msp, msp->ms_weight &
	~METASLAB_ACTIVE_MASK);
	}
	mutex_exit(&msp->ms_lock);
	continue;
	} else if (msp->ms_disabled > 0) {
	metaslab_trace_add(zal, mg, msp, asize, d,
	TRACE_DISABLED, allocator);
	if (activated) {
	metaslab_passivate(msp, msp->ms_weight &
	~METASLAB_ACTIVE_MASK);
	}
	mutex_exit(&msp->ms_lock);
	continue;
	}

	offset = metaslab_block_alloc(msp, asize, txg);
	metaslab_trace_add(zal, mg, msp, asize, d, offset, allocator);

	if (offset != -1ULL) {
	/* Proactively passivate the metaslab, if needed */
	if (activated)
	metaslab_segment_may_passivate(msp);
	break;
	}
	next:
	ASSERT(msp->ms_loaded);

	/*
	* This code is disabled out because of issues with
	* tracepoints in non-gpl kernel modules.
	*/
	#if 0
	DTRACE_PROBE2(ms__alloc__failure, metaslab_t *, msp,
	uint64_t, asize);
	#endif

	/*
	* We were unable to allocate from this metaslab so determine
	* a new weight for this metaslab. Now that we have loaded
	* the metaslab we can provide a better hint to the metaslab
	* selector.
	*
	* For space-based metaslabs, we use the maximum block size.
	* This information is only available when the metaslab
	* is loaded and is more accurate than the generic free
	* space weight that was calculated by metaslab_weight().
	* This information allows us to quickly compare the maximum
	* available allocation in the metaslab to the allocation
	* size being requested.
	*
	* For segment-based metaslabs, determine the new weight
	* based on the highest bucket in the range tree. We
	* explicitly use the loaded segment weight (i.e. the range
	* tree histogram) since it contains the space that is
	* currently available for allocation and is accurate
	* even within a sync pass.
	*/
	uint64_t weight;
	if (WEIGHT_IS_SPACEBASED(msp->ms_weight)) {
	weight = metaslab_largest_allocatable(msp);
	WEIGHT_SET_SPACEBASED(weight);
	} else {
	weight = metaslab_weight_from_range_tree(msp);
	}

	if (activated) {
	metaslab_passivate(msp, weight);
	} else {
	/*
	* For the case where we use the metaslab that is
	* active for another allocator we want to make
	* sure that we retain the activation mask.
	*
	* Note that we could attempt to use something like
	* metaslab_recalculate_weight_and_sort() that
	* retains the activation mask here. That function
	* uses metaslab_weight() to set the weight though
	* which is not as accurate as the calculations
	* above.
	*/
	weight \|= msp->ms_weight & METASLAB_ACTIVE_MASK;
	metaslab_group_sort(mg, msp, weight);
	}
	metaslab_active_mask_verify(msp);

	/*
	* We have just failed an allocation attempt, check
	* that metaslab_should_allocate() agrees. Otherwise,
	* we may end up in an infinite loop retrying the same
	* metaslab.
	*/
	ASSERT(!metaslab_should_allocate(msp, asize, try_hard));

	mutex_exit(&msp->ms_lock);
	}
	mutex_exit(&msp->ms_lock);
	kmem_free(search, sizeof (*search));
	return (offset);
	}

	static uint64_t
	metaslab_group_alloc(metaslab_group_t mg, zio_alloc_list_t zal,
	uint64_t asize, uint64_t txg, boolean_t want_unique, dva_t *dva, int d,
	int allocator, boolean_t try_hard)
	{
	uint64_t offset;
	ASSERT(mg->mg_initialized);

	offset = metaslab_group_alloc_normal(mg, zal, asize, txg, want_unique,
	dva, d, allocator, try_hard);

	mutex_enter(&mg->mg_lock);
	if (offset == -1ULL) {
	mg->mg_failed_allocations++;
	metaslab_trace_add(zal, mg, NULL, asize, d,
	TRACE_GROUP_FAILURE, allocator);
	if (asize == SPA_GANGBLOCKSIZE) {
	/*
	* This metaslab group was unable to allocate
	* the minimum gang block size so it must be out of
	* space. We must notify the allocation throttle
	* to start skipping allocation attempts to this
	* metaslab group until more space becomes available.
	* Note: this failure cannot be caused by the
	* allocation throttle since the allocation throttle
	* is only responsible for skipping devices and
	* not failing block allocations.
	*/
	mg->mg_no_free_space = B_TRUE;
	}
	}
	mg->mg_allocations++;
	mutex_exit(&mg->mg_lock);
	return (offset);
	}

	/*
	* Allocate a block for the specified i/o.
	*/
	int
	metaslab_alloc_dva(spa_t spa, metaslab_class_t mc, uint64_t psize,
	dva_t dva, int d, dva_t hintdva, uint64_t txg, int flags,
	zio_alloc_list_t *zal, int allocator)
	{
	metaslab_class_allocator_t *mca = &mc->mc_allocator[allocator];
	metaslab_group_t mg, fast_mg, *rotor;
	vdev_t *vd;
	boolean_t try_hard = B_FALSE;

	ASSERT(!DVA_IS_VALID(&dva[d]));

	/*
	* For testing, make some blocks above a certain size be gang blocks.
	* This will result in more split blocks when using device removal,
	* and a large number of split blocks coupled with ztest-induced
	* damage can result in extremely long reconstruction times. This
	* will also test spilling from special to normal.
	*/
	if (psize >= metaslab_force_ganging && (spa_get_random(100) < 3)) {
	metaslab_trace_add(zal, NULL, NULL, psize, d, TRACE_FORCE_GANG,
	allocator);
	return (SET_ERROR(ENOSPC));
	}

	/*
	* Start at the rotor and loop through all mgs until we find something.
	* Note that there's no locking on mca_rotor or mca_aliquot because
	* nothing actually breaks if we miss a few updates -- we just won't
	* allocate quite as evenly. It all balances out over time.
	*
	* If we are doing ditto or log blocks, try to spread them across
	* consecutive vdevs. If we're forced to reuse a vdev before we've
	* allocated all of our ditto blocks, then try and spread them out on
	* that vdev as much as possible. If it turns out to not be possible,
	* gradually lower our standards until anything becomes acceptable.
	* Also, allocating on consecutive vdevs (as opposed to random vdevs)
	* gives us hope of containing our fault domains to something we're
	* able to reason about. Otherwise, any two top-level vdev failures
	* will guarantee the loss of data. With consecutive allocation,
	* only two adjacent top-level vdev failures will result in data loss.
	*
	* If we are doing gang blocks (hintdva is non-NULL), try to keep
	* ourselves on the same vdev as our gang block header. That
	* way, we can hope for locality in vdev_cache, plus it makes our
	* fault domains something tractable.
	*/
	if (hintdva) {
	vd = vdev_lookup_top(spa, DVA_GET_VDEV(&hintdva[d]));

	/*
	* It's possible the vdev we're using as the hint no
	* longer exists or its mg has been closed (e.g. by
	* device removal). Consult the rotor when
	* all else fails.
	*/
	if (vd != NULL && vd->vdev_mg != NULL) {
	mg = vdev_get_mg(vd, mc);

	if (flags & METASLAB_HINTBP_AVOID &&
	mg->mg_next != NULL)
	mg = mg->mg_next;
	} else {
	mg = mca->mca_rotor;
	}
	} else if (d != 0) {
	vd = vdev_lookup_top(spa, DVA_GET_VDEV(&dva[d - 1]));
	mg = vd->vdev_mg->mg_next;
	} else if (flags & METASLAB_FASTWRITE) {
	mg = fast_mg = mca->mca_rotor;

	do {
	if (fast_mg->mg_vd->vdev_pending_fastwrite <
	mg->mg_vd->vdev_pending_fastwrite)
	mg = fast_mg;
	} while ((fast_mg = fast_mg->mg_next) != mca->mca_rotor);

	} else {
	ASSERT(mca->mca_rotor != NULL);
	mg = mca->mca_rotor;
	}

	/*
	* If the hint put us into the wrong metaslab class, or into a
	* metaslab group that has been passivated, just follow the rotor.
	*/
	if (mg->mg_class != mc \|\| mg->mg_activation_count <= 0)
	mg = mca->mca_rotor;

	rotor = mg;
	top:
	do {
	boolean_t allocatable;

	ASSERT(mg->mg_activation_count == 1);
	vd = mg->mg_vd;

	/*
	* Don't allocate from faulted devices.
	*/
	if (try_hard) {
	spa_config_enter(spa, SCL_ZIO, FTAG, RW_READER);
	allocatable = vdev_allocatable(vd);
	spa_config_exit(spa, SCL_ZIO, FTAG);
	} else {
	allocatable = vdev_allocatable(vd);
	}

	/*
	* Determine if the selected metaslab group is eligible
	* for allocations. If we're ganging then don't allow
	* this metaslab group to skip allocations since that would
	* inadvertently return ENOSPC and suspend the pool
	* even though space is still available.
	*/
	if (allocatable && !GANG_ALLOCATION(flags) && !try_hard) {
	allocatable = metaslab_group_allocatable(mg, rotor,
	psize, allocator, d);
	}

	if (!allocatable) {
	metaslab_trace_add(zal, mg, NULL, psize, d,
	TRACE_NOT_ALLOCATABLE, allocator);
	goto next;
	}

	ASSERT(mg->mg_initialized);

	/*
	* Avoid writing single-copy data to a failing,
	* non-redundant vdev, unless we've already tried all
	* other vdevs.
	*/
	if ((vd->vdev_stat.vs_write_errors > 0 \|\|
	vd->vdev_state < VDEV_STATE_HEALTHY) &&
	d == 0 && !try_hard && vd->vdev_children == 0) {
	metaslab_trace_add(zal, mg, NULL, psize, d,
	TRACE_VDEV_ERROR, allocator);
	goto next;
	}

	ASSERT(mg->mg_class == mc);

	uint64_t asize = vdev_psize_to_asize(vd, psize);
	ASSERT(P2PHASE(asize, 1ULL << vd->vdev_ashift) == 0);

	/*
	* If we don't need to try hard, then require that the
	* block be on a different metaslab from any other DVAs
	* in this BP (unique=true). If we are trying hard, then
	* allow any metaslab to be used (unique=false).
	*/
	uint64_t offset = metaslab_group_alloc(mg, zal, asize, txg,
	!try_hard, dva, d, allocator, try_hard);

	if (offset != -1ULL) {
	/*
	* If we've just selected this metaslab group,
	* figure out whether the corresponding vdev is
	* over- or under-used relative to the pool,
	* and set an allocation bias to even it out.
	*
	* Bias is also used to compensate for unequally
	* sized vdevs so that space is allocated fairly.
	*/
	if (mca->mca_aliquot == 0 && metaslab_bias_enabled) {
	vdev_stat_t *vs = &vd->vdev_stat;
	int64_t vs_free = vs->vs_space - vs->vs_alloc;
	int64_t mc_free = mc->mc_space - mc->mc_alloc;
	int64_t ratio;

	/*
	* Calculate how much more or less we should
	* try to allocate from this device during
	* this iteration around the rotor.
	*
	* This basically introduces a zero-centered
	* bias towards the devices with the most
	* free space, while compensating for vdev
	* size differences.
	*
	* Examples:
	* vdev V1 = 16M/128M
	* vdev V2 = 16M/128M
	* ratio(V1) = 100% ratio(V2) = 100%
	*
	* vdev V1 = 16M/128M
	* vdev V2 = 64M/128M
	* ratio(V1) = 127% ratio(V2) = 72%
	*
	* vdev V1 = 16M/128M
	* vdev V2 = 64M/512M
	* ratio(V1) = 40% ratio(V2) = 160%
	*/
	ratio = (vs_free * mc->mc_alloc_groups * 100) /
	(mc_free + 1);
	mg->mg_bias = ((ratio - 100) *
	(int64_t)mg->mg_aliquot) / 100;
	} else if (!metaslab_bias_enabled) {
	mg->mg_bias = 0;
	}

	if ((flags & METASLAB_FASTWRITE) \|\|
	atomic_add_64_nv(&mca->mca_aliquot, asize) >=
	mg->mg_aliquot + mg->mg_bias) {
	mca->mca_rotor = mg->mg_next;
	mca->mca_aliquot = 0;
	}

	DVA_SET_VDEV(&dva[d], vd->vdev_id);
	DVA_SET_OFFSET(&dva[d], offset);
	DVA_SET_GANG(&dva[d],
	((flags & METASLAB_GANG_HEADER) ? 1 : 0));
	DVA_SET_ASIZE(&dva[d], asize);

	if (flags & METASLAB_FASTWRITE) {
	atomic_add_64(&vd->vdev_pending_fastwrite,
	psize);
	}

	return (0);
	}
	next:
	mca->mca_rotor = mg->mg_next;
	mca->mca_aliquot = 0;
	} while ((mg = mg->mg_next) != rotor);

	/*
	* If we haven't tried hard, perhaps do so now.
	*/
	if (!try_hard && (zfs_metaslab_try_hard_before_gang \|\|
	GANG_ALLOCATION(flags) \|\| (flags & METASLAB_ZIL) != 0 \|\|
	psize <= 1 << spa->spa_min_ashift)) {
	METASLABSTAT_BUMP(metaslabstat_try_hard);
	try_hard = B_TRUE;
	goto top;
	}

	bzero(&dva[d], sizeof (dva_t));

	metaslab_trace_add(zal, rotor, NULL, psize, d, TRACE_ENOSPC, allocator);
	return (SET_ERROR(ENOSPC));
	}

	void
	metaslab_free_concrete(vdev_t *vd, uint64_t offset, uint64_t asize,
	boolean_t checkpoint)
	{
	metaslab_t *msp;
	spa_t *spa = vd->vdev_spa;

	ASSERT(vdev_is_concrete(vd));
	ASSERT3U(spa_config_held(spa, SCL_ALL, RW_READER), !=, 0);
	ASSERT3U(offset >> vd->vdev_ms_shift, <, vd->vdev_ms_count);

	msp = vd->vdev_ms[offset >> vd->vdev_ms_shift];

	VERIFY(!msp->ms_condensing);
	VERIFY3U(offset, >=, msp->ms_start);
	VERIFY3U(offset + asize, <=, msp->ms_start + msp->ms_size);
	VERIFY0(P2PHASE(offset, 1ULL << vd->vdev_ashift));
	VERIFY0(P2PHASE(asize, 1ULL << vd->vdev_ashift));

	metaslab_check_free_impl(vd, offset, asize);

	mutex_enter(&msp->ms_lock);
	if (range_tree_is_empty(msp->ms_freeing) &&
	range_tree_is_empty(msp->ms_checkpointing)) {
	vdev_dirty(vd, VDD_METASLAB, msp, spa_syncing_txg(spa));
	}

	if (checkpoint) {
	ASSERT(spa_has_checkpoint(spa));
	range_tree_add(msp->ms_checkpointing, offset, asize);
	} else {
	range_tree_add(msp->ms_freeing, offset, asize);
	}
	mutex_exit(&msp->ms_lock);
	}

	/* ARGSUSED */
	void
	metaslab_free_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset,
	uint64_t size, void *arg)
	{
	boolean_t *checkpoint = arg;

	ASSERT3P(checkpoint, !=, NULL);

	if (vd->vdev_ops->vdev_op_remap != NULL)
	vdev_indirect_mark_obsolete(vd, offset, size);
	else
	metaslab_free_impl(vd, offset, size, *checkpoint);
	}

	static void
	metaslab_free_impl(vdev_t *vd, uint64_t offset, uint64_t size,
	boolean_t checkpoint)
	{
	spa_t *spa = vd->vdev_spa;

	ASSERT3U(spa_config_held(spa, SCL_ALL, RW_READER), !=, 0);

	if (spa_syncing_txg(spa) > spa_freeze_txg(spa))
	return;

	if (spa->spa_vdev_removal != NULL &&
	spa->spa_vdev_removal->svr_vdev_id == vd->vdev_id &&
	vdev_is_concrete(vd)) {
	/*
	* Note: we check if the vdev is concrete because when
	* we complete the removal, we first change the vdev to be
	* an indirect vdev (in open context), and then (in syncing
	* context) clear spa_vdev_removal.
	*/
	free_from_removing_vdev(vd, offset, size);
	} else if (vd->vdev_ops->vdev_op_remap != NULL) {
	vdev_indirect_mark_obsolete(vd, offset, size);
	vd->vdev_ops->vdev_op_remap(vd, offset, size,
	metaslab_free_impl_cb, &checkpoint);
	} else {
	metaslab_free_concrete(vd, offset, size, checkpoint);
	}
	}

	typedef struct remap_blkptr_cb_arg {
	blkptr_t *rbca_bp;
	spa_remap_cb_t rbca_cb;
	vdev_t *rbca_remap_vd;
	uint64_t rbca_remap_offset;
	void *rbca_cb_arg;
	} remap_blkptr_cb_arg_t;

	static void
	remap_blkptr_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset,
	uint64_t size, void *arg)
	{
	remap_blkptr_cb_arg_t *rbca = arg;
	blkptr_t *bp = rbca->rbca_bp;

	/* We can not remap split blocks. */
	if (size != DVA_GET_ASIZE(&bp->blk_dva[0]))
	return;
	ASSERT0(inner_offset);

	if (rbca->rbca_cb != NULL) {
	/*
	* At this point we know that we are not handling split
	* blocks and we invoke the callback on the previous
	* vdev which must be indirect.
	*/
	ASSERT3P(rbca->rbca_remap_vd->vdev_ops, ==, &vdev_indirect_ops);

	rbca->rbca_cb(rbca->rbca_remap_vd->vdev_id,
	rbca->rbca_remap_offset, size, rbca->rbca_cb_arg);

	/* set up remap_blkptr_cb_arg for the next call */
	rbca->rbca_remap_vd = vd;
	rbca->rbca_remap_offset = offset;
	}

	/*
	* The phys birth time is that of dva[0]. This ensures that we know
	* when each dva was written, so that resilver can determine which
	* blocks need to be scrubbed (i.e. those written during the time
	* the vdev was offline). It also ensures that the key used in
	* the ARC hash table is unique (i.e. dva[0] + phys_birth). If
	* we didn't change the phys_birth, a lookup in the ARC for a
	* remapped BP could find the data that was previously stored at
	* this vdev + offset.
	*/
	vdev_t *oldvd = vdev_lookup_top(vd->vdev_spa,
	DVA_GET_VDEV(&bp->blk_dva[0]));
	vdev_indirect_births_t *vib = oldvd->vdev_indirect_births;
	bp->blk_phys_birth = vdev_indirect_births_physbirth(vib,
	DVA_GET_OFFSET(&bp->blk_dva[0]), DVA_GET_ASIZE(&bp->blk_dva[0]));

	DVA_SET_VDEV(&bp->blk_dva[0], vd->vdev_id);
	DVA_SET_OFFSET(&bp->blk_dva[0], offset);
	}

	/*
	* If the block pointer contains any indirect DVAs, modify them to refer to
	* concrete DVAs. Note that this will sometimes not be possible, leaving
	* the indirect DVA in place. This happens if the indirect DVA spans multiple
	* segments in the mapping (i.e. it is a "split block").
	*
	* If the BP was remapped, calls the callback on the original dva (note the
	* callback can be called multiple times if the original indirect DVA refers
	* to another indirect DVA, etc).
	*
	* Returns TRUE if the BP was remapped.
	*/
	boolean_t
	spa_remap_blkptr(spa_t spa, blkptr_t bp, spa_remap_cb_t callback, void *arg)
	{
	remap_blkptr_cb_arg_t rbca;

	if (!zfs_remap_blkptr_enable)
	return (B_FALSE);

	if (!spa_feature_is_enabled(spa, SPA_FEATURE_OBSOLETE_COUNTS))
	return (B_FALSE);

	/*
	* Dedup BP's can not be remapped, because ddt_phys_select() depends
	* on DVA[0] being the same in the BP as in the DDT (dedup table).
	*/
	if (BP_GET_DEDUP(bp))
	return (B_FALSE);

	/*
	* Gang blocks can not be remapped, because
	* zio_checksum_gang_verifier() depends on the DVA[0] that's in
	* the BP used to read the gang block header (GBH) being the same
	* as the DVA[0] that we allocated for the GBH.
	*/
	if (BP_IS_GANG(bp))
	return (B_FALSE);

	/*
	* Embedded BP's have no DVA to remap.
	*/
	if (BP_GET_NDVAS(bp) < 1)
	return (B_FALSE);

	/*
	* Note: we only remap dva[0]. If we remapped other dvas, we
	* would no longer know what their phys birth txg is.
	*/
	dva_t *dva = &bp->blk_dva[0];

	uint64_t offset = DVA_GET_OFFSET(dva);
	uint64_t size = DVA_GET_ASIZE(dva);
	vdev_t *vd = vdev_lookup_top(spa, DVA_GET_VDEV(dva));

	if (vd->vdev_ops->vdev_op_remap == NULL)
	return (B_FALSE);

	rbca.rbca_bp = bp;
	rbca.rbca_cb = callback;
	rbca.rbca_remap_vd = vd;
	rbca.rbca_remap_offset = offset;
	rbca.rbca_cb_arg = arg;

	/*
	* remap_blkptr_cb() will be called in order for each level of
	* indirection, until a concrete vdev is reached or a split block is
	* encountered. old_vd and old_offset are updated within the callback
	* as we go from the one indirect vdev to the next one (either concrete
	* or indirect again) in that order.
	*/
	vd->vdev_ops->vdev_op_remap(vd, offset, size, remap_blkptr_cb, &rbca);

	/* Check if the DVA wasn't remapped because it is a split block */
	if (DVA_GET_VDEV(&rbca.rbca_bp->blk_dva[0]) == vd->vdev_id)
	return (B_FALSE);

	return (B_TRUE);
	}

	/*
	* Undo the allocation of a DVA which happened in the given transaction group.
	*/
	void
	metaslab_unalloc_dva(spa_t spa, const dva_t dva, uint64_t txg)
	{
	metaslab_t *msp;
	vdev_t *vd;
	uint64_t vdev = DVA_GET_VDEV(dva);
	uint64_t offset = DVA_GET_OFFSET(dva);
	uint64_t size = DVA_GET_ASIZE(dva);

	ASSERT(DVA_IS_VALID(dva));
	ASSERT3U(spa_config_held(spa, SCL_ALL, RW_READER), !=, 0);

	if (txg > spa_freeze_txg(spa))
	return;

	if ((vd = vdev_lookup_top(spa, vdev)) == NULL \|\| !DVA_IS_VALID(dva) \|\|
	(offset >> vd->vdev_ms_shift) >= vd->vdev_ms_count) {
	zfs_panic_recover("metaslab_free_dva(): bad DVA %llu:%llu:%llu",
	(u_longlong_t)vdev, (u_longlong_t)offset,
	(u_longlong_t)size);
	return;
	}

	ASSERT(!vd->vdev_removing);
	ASSERT(vdev_is_concrete(vd));
	ASSERT0(vd->vdev_indirect_config.vic_mapping_object);
	ASSERT3P(vd->vdev_indirect_mapping, ==, NULL);

	if (DVA_GET_GANG(dva))
	size = vdev_gang_header_asize(vd);

	msp = vd->vdev_ms[offset >> vd->vdev_ms_shift];

	mutex_enter(&msp->ms_lock);
	range_tree_remove(msp->ms_allocating[txg & TXG_MASK],
	offset, size);
	msp->ms_allocating_total -= size;

	VERIFY(!msp->ms_condensing);
	VERIFY3U(offset, >=, msp->ms_start);
	VERIFY3U(offset + size, <=, msp->ms_start + msp->ms_size);
	VERIFY3U(range_tree_space(msp->ms_allocatable) + size, <=,
	msp->ms_size);
	VERIFY0(P2PHASE(offset, 1ULL << vd->vdev_ashift));
	VERIFY0(P2PHASE(size, 1ULL << vd->vdev_ashift));
	range_tree_add(msp->ms_allocatable, offset, size);
	mutex_exit(&msp->ms_lock);
	}

	/*
	* Free the block represented by the given DVA.
	*/
	void
	metaslab_free_dva(spa_t spa, const dva_t dva, boolean_t checkpoint)
	{
	uint64_t vdev = DVA_GET_VDEV(dva);
	uint64_t offset = DVA_GET_OFFSET(dva);
	uint64_t size = DVA_GET_ASIZE(dva);
	vdev_t *vd = vdev_lookup_top(spa, vdev);

	ASSERT(DVA_IS_VALID(dva));
	ASSERT3U(spa_config_held(spa, SCL_ALL, RW_READER), !=, 0);

	if (DVA_GET_GANG(dva)) {
	size = vdev_gang_header_asize(vd);
	}

	metaslab_free_impl(vd, offset, size, checkpoint);
	}

	/*
	* Reserve some allocation slots. The reservation system must be called
	* before we call into the allocator. If there aren't any available slots
	* then the I/O will be throttled until an I/O completes and its slots are
	* freed up. The function returns true if it was successful in placing
	* the reservation.
	*/
	boolean_t
	metaslab_class_throttle_reserve(metaslab_class_t *mc, int slots, int allocator,
	zio_t *zio, int flags)
	{
	metaslab_class_allocator_t *mca = &mc->mc_allocator[allocator];
	uint64_t available_slots = 0;
	boolean_t slot_reserved = B_FALSE;
	uint64_t max = mca->mca_alloc_max_slots;

	ASSERT(mc->mc_alloc_throttle_enabled);
	mutex_enter(&mc->mc_lock);

	uint64_t reserved_slots = zfs_refcount_count(&mca->mca_alloc_slots);
	if (reserved_slots < max)
	available_slots = max - reserved_slots;

	if (slots <= available_slots \|\| GANG_ALLOCATION(flags) \|\|
	flags & METASLAB_MUST_RESERVE) {
	/*
	* We reserve the slots individually so that we can unreserve
	* them individually when an I/O completes.
	*/
	for (int d = 0; d < slots; d++)
	zfs_refcount_add(&mca->mca_alloc_slots, zio);
	zio->io_flags \|= ZIO_FLAG_IO_ALLOCATING;
	slot_reserved = B_TRUE;
	}

	mutex_exit(&mc->mc_lock);
	return (slot_reserved);
	}

	void
	metaslab_class_throttle_unreserve(metaslab_class_t *mc, int slots,
	int allocator, zio_t *zio)
	{
	metaslab_class_allocator_t *mca = &mc->mc_allocator[allocator];

	ASSERT(mc->mc_alloc_throttle_enabled);
	mutex_enter(&mc->mc_lock);
	for (int d = 0; d < slots; d++)
	zfs_refcount_remove(&mca->mca_alloc_slots, zio);
	mutex_exit(&mc->mc_lock);
	}

	static int
	metaslab_claim_concrete(vdev_t *vd, uint64_t offset, uint64_t size,
	uint64_t txg)
	{
	metaslab_t *msp;
	spa_t *spa = vd->vdev_spa;
	int error = 0;

	if (offset >> vd->vdev_ms_shift >= vd->vdev_ms_count)
	return (SET_ERROR(ENXIO));

	ASSERT3P(vd->vdev_ms, !=, NULL);
	msp = vd->vdev_ms[offset >> vd->vdev_ms_shift];

	mutex_enter(&msp->ms_lock);

	if ((txg != 0 && spa_writeable(spa)) \|\| !msp->ms_loaded) {
	error = metaslab_activate(msp, 0, METASLAB_WEIGHT_CLAIM);
	if (error == EBUSY) {
	ASSERT(msp->ms_loaded);
	ASSERT(msp->ms_weight & METASLAB_ACTIVE_MASK);
	error = 0;
	}
	}

	if (error == 0 &&
	!range_tree_contains(msp->ms_allocatable, offset, size))
	error = SET_ERROR(ENOENT);

	if (error \|\| txg == 0) { /* txg == 0 indicates dry run */
	mutex_exit(&msp->ms_lock);
	return (error);
	}

	VERIFY(!msp->ms_condensing);
	VERIFY0(P2PHASE(offset, 1ULL << vd->vdev_ashift));
	VERIFY0(P2PHASE(size, 1ULL << vd->vdev_ashift));
	VERIFY3U(range_tree_space(msp->ms_allocatable) - size, <=,
	msp->ms_size);
	range_tree_remove(msp->ms_allocatable, offset, size);
	range_tree_clear(msp->ms_trim, offset, size);

	if (spa_writeable(spa)) { /* don't dirty if we're zdb(8) */
	metaslab_class_t *mc = msp->ms_group->mg_class;
	multilist_sublist_t *mls =
	- multilist_sublist_lock_obj(mc->mc_metaslab_txg_list, msp);
	+ multilist_sublist_lock_obj(&mc->mc_metaslab_txg_list, msp);
	if (!multilist_link_active(&msp->ms_class_txg_node)) {
	msp->ms_selected_txg = txg;
	multilist_sublist_insert_head(mls, msp);
	}
	multilist_sublist_unlock(mls);

	if (range_tree_is_empty(msp->ms_allocating[txg & TXG_MASK]))
	vdev_dirty(vd, VDD_METASLAB, msp, txg);
	range_tree_add(msp->ms_allocating[txg & TXG_MASK],
	offset, size);
	msp->ms_allocating_total += size;
	}

	mutex_exit(&msp->ms_lock);

	return (0);
	}

	typedef struct metaslab_claim_cb_arg_t {
	uint64_t mcca_txg;
	int mcca_error;
	} metaslab_claim_cb_arg_t;

	/* ARGSUSED */
	static void
	metaslab_claim_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset,
	uint64_t size, void *arg)
	{
	metaslab_claim_cb_arg_t *mcca_arg = arg;

	if (mcca_arg->mcca_error == 0) {
	mcca_arg->mcca_error = metaslab_claim_concrete(vd, offset,
	size, mcca_arg->mcca_txg);
	}
	}

	int
	metaslab_claim_impl(vdev_t *vd, uint64_t offset, uint64_t size, uint64_t txg)
	{
	if (vd->vdev_ops->vdev_op_remap != NULL) {
	metaslab_claim_cb_arg_t arg;

	/*
	* Only zdb(8) can claim on indirect vdevs. This is used
	* to detect leaks of mapped space (that are not accounted
	* for in the obsolete counts, spacemap, or bpobj).
	*/
	ASSERT(!spa_writeable(vd->vdev_spa));
	arg.mcca_error = 0;
	arg.mcca_txg = txg;

	vd->vdev_ops->vdev_op_remap(vd, offset, size,
	metaslab_claim_impl_cb, &arg);

	if (arg.mcca_error == 0) {
	arg.mcca_error = metaslab_claim_concrete(vd,
	offset, size, txg);
	}
	return (arg.mcca_error);
	} else {
	return (metaslab_claim_concrete(vd, offset, size, txg));
	}
	}

	/*
	* Intent log support: upon opening the pool after a crash, notify the SPA
	* of blocks that the intent log has allocated for immediate write, but
	* which are still considered free by the SPA because the last transaction
	* group didn't commit yet.
	*/
	static int
	metaslab_claim_dva(spa_t spa, const dva_t dva, uint64_t txg)
	{
	uint64_t vdev = DVA_GET_VDEV(dva);
	uint64_t offset = DVA_GET_OFFSET(dva);
	uint64_t size = DVA_GET_ASIZE(dva);
	vdev_t *vd;

	if ((vd = vdev_lookup_top(spa, vdev)) == NULL) {
	return (SET_ERROR(ENXIO));
	}

	ASSERT(DVA_IS_VALID(dva));

	if (DVA_GET_GANG(dva))
	size = vdev_gang_header_asize(vd);

	return (metaslab_claim_impl(vd, offset, size, txg));
	}

	int
	metaslab_alloc(spa_t spa, metaslab_class_t mc, uint64_t psize, blkptr_t *bp,
	int ndvas, uint64_t txg, blkptr_t *hintbp, int flags,
	zio_alloc_list_t zal, zio_t zio, int allocator)
	{
	dva_t *dva = bp->blk_dva;
	dva_t *hintdva = (hintbp != NULL) ? hintbp->blk_dva : NULL;
	int error = 0;

	ASSERT(bp->blk_birth == 0);
	ASSERT(BP_PHYSICAL_BIRTH(bp) == 0);

	spa_config_enter(spa, SCL_ALLOC, FTAG, RW_READER);

	if (mc->mc_allocator[allocator].mca_rotor == NULL) {
	/* no vdevs in this class */
	spa_config_exit(spa, SCL_ALLOC, FTAG);
	return (SET_ERROR(ENOSPC));
	}

	ASSERT(ndvas > 0 && ndvas <= spa_max_replication(spa));
	ASSERT(BP_GET_NDVAS(bp) == 0);
	ASSERT(hintbp == NULL \|\| ndvas <= BP_GET_NDVAS(hintbp));
	ASSERT3P(zal, !=, NULL);

	for (int d = 0; d < ndvas; d++) {
	error = metaslab_alloc_dva(spa, mc, psize, dva, d, hintdva,
	txg, flags, zal, allocator);
	if (error != 0) {
	for (d--; d >= 0; d--) {
	metaslab_unalloc_dva(spa, &dva[d], txg);
	metaslab_group_alloc_decrement(spa,
	DVA_GET_VDEV(&dva[d]), zio, flags,
	allocator, B_FALSE);
	bzero(&dva[d], sizeof (dva_t));
	}
	spa_config_exit(spa, SCL_ALLOC, FTAG);
	return (error);
	} else {
	/*
	* Update the metaslab group's queue depth
	* based on the newly allocated dva.
	*/
	metaslab_group_alloc_increment(spa,
	DVA_GET_VDEV(&dva[d]), zio, flags, allocator);
	}
	}
	ASSERT(error == 0);
	ASSERT(BP_GET_NDVAS(bp) == ndvas);

	spa_config_exit(spa, SCL_ALLOC, FTAG);

	BP_SET_BIRTH(bp, txg, 0);

	return (0);
	}

	void
	metaslab_free(spa_t spa, const blkptr_t bp, uint64_t txg, boolean_t now)
	{
	const dva_t *dva = bp->blk_dva;
	int ndvas = BP_GET_NDVAS(bp);

	ASSERT(!BP_IS_HOLE(bp));
	ASSERT(!now \|\| bp->blk_birth >= spa_syncing_txg(spa));

	/*
	* If we have a checkpoint for the pool we need to make sure that
	* the blocks that we free that are part of the checkpoint won't be
	* reused until the checkpoint is discarded or we revert to it.
	*
	* The checkpoint flag is passed down the metaslab_free code path
	* and is set whenever we want to add a block to the checkpoint's
	* accounting. That is, we "checkpoint" blocks that existed at the
	* time the checkpoint was created and are therefore referenced by
	* the checkpointed uberblock.
	*
	* Note that, we don't checkpoint any blocks if the current
	* syncing txg <= spa_checkpoint_txg. We want these frees to sync
	* normally as they will be referenced by the checkpointed uberblock.
	*/
	boolean_t checkpoint = B_FALSE;
	if (bp->blk_birth <= spa->spa_checkpoint_txg &&
	spa_syncing_txg(spa) > spa->spa_checkpoint_txg) {
	/*
	* At this point, if the block is part of the checkpoint
	* there is no way it was created in the current txg.
	*/
	ASSERT(!now);
	ASSERT3U(spa_syncing_txg(spa), ==, txg);
	checkpoint = B_TRUE;
	}

	spa_config_enter(spa, SCL_FREE, FTAG, RW_READER);

	for (int d = 0; d < ndvas; d++) {
	if (now) {
	metaslab_unalloc_dva(spa, &dva[d], txg);
	} else {
	ASSERT3U(txg, ==, spa_syncing_txg(spa));
	metaslab_free_dva(spa, &dva[d], checkpoint);
	}
	}

	spa_config_exit(spa, SCL_FREE, FTAG);
	}

	int
	metaslab_claim(spa_t spa, const blkptr_t bp, uint64_t txg)
	{
	const dva_t *dva = bp->blk_dva;
	int ndvas = BP_GET_NDVAS(bp);
	int error = 0;

	ASSERT(!BP_IS_HOLE(bp));

	if (txg != 0) {
	/*
	* First do a dry run to make sure all DVAs are claimable,
	* so we don't have to unwind from partial failures below.
	*/
	if ((error = metaslab_claim(spa, bp, 0)) != 0)
	return (error);
	}

	spa_config_enter(spa, SCL_ALLOC, FTAG, RW_READER);

	for (int d = 0; d < ndvas; d++) {
	error = metaslab_claim_dva(spa, &dva[d], txg);
	if (error != 0)
	break;
	}

	spa_config_exit(spa, SCL_ALLOC, FTAG);

	ASSERT(error == 0 \|\| txg == 0);

	return (error);
	}

	void
	metaslab_fastwrite_mark(spa_t spa, const blkptr_t bp)
	{
	const dva_t *dva = bp->blk_dva;
	int ndvas = BP_GET_NDVAS(bp);
	uint64_t psize = BP_GET_PSIZE(bp);
	int d;
	vdev_t *vd;

	ASSERT(!BP_IS_HOLE(bp));
	ASSERT(!BP_IS_EMBEDDED(bp));
	ASSERT(psize > 0);

	spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);

	for (d = 0; d < ndvas; d++) {
	if ((vd = vdev_lookup_top(spa, DVA_GET_VDEV(&dva[d]))) == NULL)
	continue;
	atomic_add_64(&vd->vdev_pending_fastwrite, psize);
	}

	spa_config_exit(spa, SCL_VDEV, FTAG);
	}

	void
	metaslab_fastwrite_unmark(spa_t spa, const blkptr_t bp)
	{
	const dva_t *dva = bp->blk_dva;
	int ndvas = BP_GET_NDVAS(bp);
	uint64_t psize = BP_GET_PSIZE(bp);
	int d;
	vdev_t *vd;

	ASSERT(!BP_IS_HOLE(bp));
	ASSERT(!BP_IS_EMBEDDED(bp));
	ASSERT(psize > 0);

	spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);

	for (d = 0; d < ndvas; d++) {
	if ((vd = vdev_lookup_top(spa, DVA_GET_VDEV(&dva[d]))) == NULL)
	continue;
	ASSERT3U(vd->vdev_pending_fastwrite, >=, psize);
	atomic_sub_64(&vd->vdev_pending_fastwrite, psize);
	}

	spa_config_exit(spa, SCL_VDEV, FTAG);
	}

	/* ARGSUSED */
	static void
	metaslab_check_free_impl_cb(uint64_t inner, vdev_t *vd, uint64_t offset,
	uint64_t size, void *arg)
	{
	if (vd->vdev_ops == &vdev_indirect_ops)
	return;

	metaslab_check_free_impl(vd, offset, size);
	}

	static void
	metaslab_check_free_impl(vdev_t *vd, uint64_t offset, uint64_t size)
	{
	metaslab_t *msp;
	spa_t *spa __maybe_unused = vd->vdev_spa;

	if ((zfs_flags & ZFS_DEBUG_ZIO_FREE) == 0)
	return;

	if (vd->vdev_ops->vdev_op_remap != NULL) {
	vd->vdev_ops->vdev_op_remap(vd, offset, size,
	metaslab_check_free_impl_cb, NULL);
	return;
	}

	ASSERT(vdev_is_concrete(vd));
	ASSERT3U(offset >> vd->vdev_ms_shift, <, vd->vdev_ms_count);
	ASSERT3U(spa_config_held(spa, SCL_ALL, RW_READER), !=, 0);

	msp = vd->vdev_ms[offset >> vd->vdev_ms_shift];

	mutex_enter(&msp->ms_lock);
	if (msp->ms_loaded) {
	range_tree_verify_not_present(msp->ms_allocatable,
	offset, size);
	}

	/*
	* Check all segments that currently exist in the freeing pipeline.
	*
	* It would intuitively make sense to also check the current allocating
	* tree since metaslab_unalloc_dva() exists for extents that are
	* allocated and freed in the same sync pass within the same txg.
	* Unfortunately there are places (e.g. the ZIL) where we allocate a
	* segment but then we free part of it within the same txg
	* [see zil_sync()]. Thus, we don't call range_tree_verify() in the
	* current allocating tree.
	*/
	range_tree_verify_not_present(msp->ms_freeing, offset, size);
	range_tree_verify_not_present(msp->ms_checkpointing, offset, size);
	range_tree_verify_not_present(msp->ms_freed, offset, size);
	for (int j = 0; j < TXG_DEFER_SIZE; j++)
	range_tree_verify_not_present(msp->ms_defer[j], offset, size);
	range_tree_verify_not_present(msp->ms_trim, offset, size);
	mutex_exit(&msp->ms_lock);
	}

	void
	metaslab_check_free(spa_t spa, const blkptr_t bp)
	{
	if ((zfs_flags & ZFS_DEBUG_ZIO_FREE) == 0)
	return;

	spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
	for (int i = 0; i < BP_GET_NDVAS(bp); i++) {
	uint64_t vdev = DVA_GET_VDEV(&bp->blk_dva[i]);
	vdev_t *vd = vdev_lookup_top(spa, vdev);
	uint64_t offset = DVA_GET_OFFSET(&bp->blk_dva[i]);
	uint64_t size = DVA_GET_ASIZE(&bp->blk_dva[i]);

	if (DVA_GET_GANG(&bp->blk_dva[i]))
	size = vdev_gang_header_asize(vd);

	ASSERT3P(vd, !=, NULL);

	metaslab_check_free_impl(vd, offset, size);
	}
	spa_config_exit(spa, SCL_VDEV, FTAG);
	}

	static void
	metaslab_group_disable_wait(metaslab_group_t *mg)
	{
	ASSERT(MUTEX_HELD(&mg->mg_ms_disabled_lock));
	while (mg->mg_disabled_updating) {
	cv_wait(&mg->mg_ms_disabled_cv, &mg->mg_ms_disabled_lock);
	}
	}

	static void
	metaslab_group_disabled_increment(metaslab_group_t *mg)
	{
	ASSERT(MUTEX_HELD(&mg->mg_ms_disabled_lock));
	ASSERT(mg->mg_disabled_updating);

	while (mg->mg_ms_disabled >= max_disabled_ms) {
	cv_wait(&mg->mg_ms_disabled_cv, &mg->mg_ms_disabled_lock);
	}
	mg->mg_ms_disabled++;
	ASSERT3U(mg->mg_ms_disabled, <=, max_disabled_ms);
	}

	/*
	* Mark the metaslab as disabled to prevent any allocations on this metaslab.
	* We must also track how many metaslabs are currently disabled within a
	* metaslab group and limit them to prevent allocation failures from
	* occurring because all metaslabs are disabled.
	*/
	void
	metaslab_disable(metaslab_t *msp)
	{
	ASSERT(!MUTEX_HELD(&msp->ms_lock));
	metaslab_group_t *mg = msp->ms_group;

	mutex_enter(&mg->mg_ms_disabled_lock);

	/*
	* To keep an accurate count of how many threads have disabled
	* a specific metaslab group, we only allow one thread to mark
	* the metaslab group at a time. This ensures that the value of
	* ms_disabled will be accurate when we decide to mark a metaslab
	* group as disabled. To do this we force all other threads
	* to wait till the metaslab's mg_disabled_updating flag is no
	* longer set.
	*/
	metaslab_group_disable_wait(mg);
	mg->mg_disabled_updating = B_TRUE;
	if (msp->ms_disabled == 0) {
	metaslab_group_disabled_increment(mg);
	}
	mutex_enter(&msp->ms_lock);
	msp->ms_disabled++;
	mutex_exit(&msp->ms_lock);

	mg->mg_disabled_updating = B_FALSE;
	cv_broadcast(&mg->mg_ms_disabled_cv);
	mutex_exit(&mg->mg_ms_disabled_lock);
	}

	void
	metaslab_enable(metaslab_t *msp, boolean_t sync, boolean_t unload)
	{
	metaslab_group_t *mg = msp->ms_group;
	spa_t *spa = mg->mg_vd->vdev_spa;

	/*
	* Wait for the outstanding IO to be synced to prevent newly
	* allocated blocks from being overwritten. This used by
	* initialize and TRIM which are modifying unallocated space.
	*/
	if (sync)
	txg_wait_synced(spa_get_dsl(spa), 0);

	mutex_enter(&mg->mg_ms_disabled_lock);
	mutex_enter(&msp->ms_lock);
	if (--msp->ms_disabled == 0) {
	mg->mg_ms_disabled--;
	cv_broadcast(&mg->mg_ms_disabled_cv);
	if (unload)
	metaslab_unload(msp);
	}
	mutex_exit(&msp->ms_lock);
	mutex_exit(&mg->mg_ms_disabled_lock);
	}

	static void
	metaslab_update_ondisk_flush_data(metaslab_t ms, dmu_tx_t tx)
	{
	vdev_t *vd = ms->ms_group->mg_vd;
	spa_t *spa = vd->vdev_spa;
	objset_t *mos = spa_meta_objset(spa);

	ASSERT(spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP));

	metaslab_unflushed_phys_t entry = {
	.msp_unflushed_txg = metaslab_unflushed_txg(ms),
	};
	uint64_t entry_size = sizeof (entry);
	uint64_t entry_offset = ms->ms_id * entry_size;

	uint64_t object = 0;
	int err = zap_lookup(mos, vd->vdev_top_zap,
	VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS, sizeof (uint64_t), 1,
	&object);
	if (err == ENOENT) {
	object = dmu_object_alloc(mos, DMU_OTN_UINT64_METADATA,
	SPA_OLD_MAXBLOCKSIZE, DMU_OT_NONE, 0, tx);
	VERIFY0(zap_add(mos, vd->vdev_top_zap,
	VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS, sizeof (uint64_t), 1,
	&object, tx));
	} else {
	VERIFY0(err);
	}

	dmu_write(spa_meta_objset(spa), object, entry_offset, entry_size,
	&entry, tx);
	}

	void
	metaslab_set_unflushed_txg(metaslab_t ms, uint64_t txg, dmu_tx_t tx)
	{
	spa_t *spa = ms->ms_group->mg_vd->vdev_spa;

	if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP))
	return;

	ms->ms_unflushed_txg = txg;
	metaslab_update_ondisk_flush_data(ms, tx);
	}

	uint64_t
	metaslab_unflushed_txg(metaslab_t *ms)
	{
	return (ms->ms_unflushed_txg);
	}

	ZFS_MODULE_PARAM(zfs_metaslab, metaslab_, aliquot, ULONG, ZMOD_RW,
	"Allocation granularity (a.k.a. stripe size)");

	ZFS_MODULE_PARAM(zfs_metaslab, metaslab_, debug_load, INT, ZMOD_RW,
	"Load all metaslabs when pool is first opened");

	ZFS_MODULE_PARAM(zfs_metaslab, metaslab_, debug_unload, INT, ZMOD_RW,
	"Prevent metaslabs from being unloaded");

	ZFS_MODULE_PARAM(zfs_metaslab, metaslab_, preload_enabled, INT, ZMOD_RW,
	"Preload potential metaslabs during reassessment");

	ZFS_MODULE_PARAM(zfs_metaslab, metaslab_, unload_delay, INT, ZMOD_RW,
	"Delay in txgs after metaslab was last used before unloading");

	ZFS_MODULE_PARAM(zfs_metaslab, metaslab_, unload_delay_ms, INT, ZMOD_RW,
	"Delay in milliseconds after metaslab was last used before unloading");

	/* BEGIN CSTYLED */
	ZFS_MODULE_PARAM(zfs_mg, zfs_mg_, noalloc_threshold, INT, ZMOD_RW,
	"Percentage of metaslab group size that should be free to make it "
	"eligible for allocation");

	ZFS_MODULE_PARAM(zfs_mg, zfs_mg_, fragmentation_threshold, INT, ZMOD_RW,
	"Percentage of metaslab group size that should be considered eligible "
	"for allocations unless all metaslab groups within the metaslab class "
	"have also crossed this threshold");

	ZFS_MODULE_PARAM(zfs_metaslab, zfs_metaslab_, fragmentation_threshold, INT,
	ZMOD_RW, "Fragmentation for metaslab to allow allocation");

	ZFS_MODULE_PARAM(zfs_metaslab, metaslab_, fragmentation_factor_enabled, INT, ZMOD_RW,
	"Use the fragmentation metric to prefer less fragmented metaslabs");
	/* END CSTYLED */

	ZFS_MODULE_PARAM(zfs_metaslab, metaslab_, lba_weighting_enabled, INT, ZMOD_RW,
	"Prefer metaslabs with lower LBAs");

	ZFS_MODULE_PARAM(zfs_metaslab, metaslab_, bias_enabled, INT, ZMOD_RW,
	"Enable metaslab group biasing");

	ZFS_MODULE_PARAM(zfs_metaslab, zfs_metaslab_, segment_weight_enabled, INT,
	ZMOD_RW, "Enable segment-based metaslab selection");

	ZFS_MODULE_PARAM(zfs_metaslab, zfs_metaslab_, switch_threshold, INT, ZMOD_RW,
	"Segment-based metaslab selection maximum buckets before switching");

	ZFS_MODULE_PARAM(zfs_metaslab, metaslab_, force_ganging, ULONG, ZMOD_RW,
	"Blocks larger than this size are forced to be gang blocks");

	ZFS_MODULE_PARAM(zfs_metaslab, metaslab_, df_max_search, INT, ZMOD_RW,
	"Max distance (bytes) to search forward before using size tree");

	ZFS_MODULE_PARAM(zfs_metaslab, metaslab_, df_use_largest_segment, INT, ZMOD_RW,
	"When looking in size tree, use largest segment instead of exact fit");

	ZFS_MODULE_PARAM(zfs_metaslab, zfs_metaslab_, max_size_cache_sec, ULONG,
	ZMOD_RW, "How long to trust the cached max chunk size of a metaslab");

	ZFS_MODULE_PARAM(zfs_metaslab, zfs_metaslab_, mem_limit, INT, ZMOD_RW,
	"Percentage of memory that can be used to store metaslab range trees");

	ZFS_MODULE_PARAM(zfs_metaslab, zfs_metaslab_, try_hard_before_gang, INT,
	ZMOD_RW, "Try hard to allocate before ganging");

	ZFS_MODULE_PARAM(zfs_metaslab, zfs_metaslab_, find_max_tries, INT, ZMOD_RW,
	"Normally only consider this many of the best metaslabs in each vdev");
	diff --git a/sys/contrib/openzfs/module/zfs/multilist.c b/sys/contrib/openzfs/module/zfs/multilist.c
	index 36c0d33bf1f6..eeac73bd7adf 100644
	--- a/sys/contrib/openzfs/module/zfs/multilist.c
	+++ b/sys/contrib/openzfs/module/zfs/multilist.c
	@@ -1,434 +1,432 @@
	/*
	* CDDL HEADER START
	*
	* This file and its contents are supplied under the terms of the
	* Common Development and Distribution License ("CDDL"), version 1.0.
	* You may only use this file in accordance with the terms of version
	* 1.0 of the CDDL.
	*
	* A full copy of the text of the CDDL should have accompanied this
	* source. A copy of the CDDL is also available via the Internet at
	* http://www.illumos.org/license/CDDL.
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright (c) 2013, 2017 by Delphix. All rights reserved.
	*/

	#include <sys/zfs_context.h>
	#include <sys/multilist.h>
	#include <sys/trace_zfs.h>

	/* needed for spa_get_random() */
	#include <sys/spa.h>

	/*
	* This overrides the number of sublists in each multilist_t, which defaults
	* to the number of CPUs in the system (see multilist_create()).
	*/
	int zfs_multilist_num_sublists = 0;

	/*
	* Given the object contained on the list, return a pointer to the
	* object's multilist_node_t structure it contains.
	*/
	#ifdef ZFS_DEBUG
	static multilist_node_t *
	multilist_d2l(multilist_t ml, void obj)
	{
	return ((multilist_node_t )((char )obj + ml->ml_offset));
	}
	#endif

	/*
	* Initialize a new mutlilist using the parameters specified.
	*
	* - 'size' denotes the size of the structure containing the
	* multilist_node_t.
	* - 'offset' denotes the byte offset of the mutlilist_node_t within
	* the structure that contains it.
	* - 'num' specifies the number of internal sublists to create.
	* - 'index_func' is used to determine which sublist to insert into
	* when the multilist_insert() function is called; as well as which
	* sublist to remove from when multilist_remove() is called. The
	* requirements this function must meet, are the following:
	*
	* - It must always return the same value when called on the same
	* object (to ensure the object is removed from the list it was
	* inserted into).
	*
	* - It must return a value in the range [0, number of sublists).
	* The multilist_get_num_sublists() function may be used to
	* determine the number of sublists in the multilist.
	*
	* Also, in order to reduce internal contention between the sublists
	* during insertion and removal, this function should choose evenly
	* between all available sublists when inserting. This isn't a hard
	* requirement, but a general rule of thumb in order to garner the
	* best multi-threaded performance out of the data structure.
	*/
	-static multilist_t *
	-multilist_create_impl(size_t size, size_t offset,
	+static void
	+multilist_create_impl(multilist_t *ml, size_t size, size_t offset,
	unsigned int num, multilist_sublist_index_func_t *index_func)
	{
	ASSERT3U(size, >, 0);
	ASSERT3U(size, >=, offset + sizeof (multilist_node_t));
	ASSERT3U(num, >, 0);
	ASSERT3P(index_func, !=, NULL);

	- multilist_t ml = kmem_alloc(sizeof (ml), KM_SLEEP);
	ml->ml_offset = offset;
	ml->ml_num_sublists = num;
	ml->ml_index_func = index_func;

	ml->ml_sublists = kmem_zalloc(sizeof (multilist_sublist_t) *
	ml->ml_num_sublists, KM_SLEEP);

	ASSERT3P(ml->ml_sublists, !=, NULL);

	for (int i = 0; i < ml->ml_num_sublists; i++) {
	multilist_sublist_t *mls = &ml->ml_sublists[i];
	mutex_init(&mls->mls_lock, NULL, MUTEX_NOLOCKDEP, NULL);
	list_create(&mls->mls_list, size, offset);
	}
	- return (ml);
	}

	/*
	* Allocate a new multilist, using the default number of sublists (the number
	* of CPUs, or at least 4, or the tunable zfs_multilist_num_sublists). Note
	* that the multilists do not expand if more CPUs are hot-added. In that case,
	* we will have less fanout than boot_ncpus, but we don't want to always
	* reserve the RAM necessary to create the extra slots for additional CPUs up
	* front, and dynamically adding them is a complex task.
	*/
	-multilist_t *
	-multilist_create(size_t size, size_t offset,
	+void
	+multilist_create(multilist_t *ml, size_t size, size_t offset,
	multilist_sublist_index_func_t *index_func)
	{
	int num_sublists;

	if (zfs_multilist_num_sublists > 0) {
	num_sublists = zfs_multilist_num_sublists;
	} else {
	num_sublists = MAX(boot_ncpus, 4);
	}

	- return (multilist_create_impl(size, offset, num_sublists, index_func));
	+ multilist_create_impl(ml, size, offset, num_sublists, index_func);
	}

	/*
	* Destroy the given multilist object, and free up any memory it holds.
	*/
	void
	multilist_destroy(multilist_t *ml)
	{
	ASSERT(multilist_is_empty(ml));

	for (int i = 0; i < ml->ml_num_sublists; i++) {
	multilist_sublist_t *mls = &ml->ml_sublists[i];

	ASSERT(list_is_empty(&mls->mls_list));

	list_destroy(&mls->mls_list);
	mutex_destroy(&mls->mls_lock);
	}

	ASSERT3P(ml->ml_sublists, !=, NULL);
	kmem_free(ml->ml_sublists,
	sizeof (multilist_sublist_t) * ml->ml_num_sublists);

	ml->ml_num_sublists = 0;
	ml->ml_offset = 0;
	- kmem_free(ml, sizeof (multilist_t));
	+ ml->ml_sublists = NULL;
	}

	/*
	* Insert the given object into the multilist.
	*
	* This function will insert the object specified into the sublist
	* determined using the function given at multilist creation time.
	*
	* The sublist locks are automatically acquired if not already held, to
	* ensure consistency when inserting and removing from multiple threads.
	*/
	void
	multilist_insert(multilist_t ml, void obj)
	{
	unsigned int sublist_idx = ml->ml_index_func(ml, obj);
	multilist_sublist_t *mls;
	boolean_t need_lock;

	DTRACE_PROBE3(multilist__insert, multilist_t *, ml,
	unsigned int, sublist_idx, void *, obj);

	ASSERT3U(sublist_idx, <, ml->ml_num_sublists);

	mls = &ml->ml_sublists[sublist_idx];

	/*
	* Note: Callers may already hold the sublist lock by calling
	* multilist_sublist_lock(). Here we rely on MUTEX_HELD()
	* returning TRUE if and only if the current thread holds the
	* lock. While it's a little ugly to make the lock recursive in
	* this way, it works and allows the calling code to be much
	* simpler -- otherwise it would have to pass around a flag
	* indicating that it already has the lock.
	*/
	need_lock = !MUTEX_HELD(&mls->mls_lock);

	if (need_lock)
	mutex_enter(&mls->mls_lock);

	ASSERT(!multilist_link_active(multilist_d2l(ml, obj)));

	multilist_sublist_insert_head(mls, obj);

	if (need_lock)
	mutex_exit(&mls->mls_lock);
	}

	/*
	* Remove the given object from the multilist.
	*
	* This function will remove the object specified from the sublist
	* determined using the function given at multilist creation time.
	*
	* The necessary sublist locks are automatically acquired, to ensure
	* consistency when inserting and removing from multiple threads.
	*/
	void
	multilist_remove(multilist_t ml, void obj)
	{
	unsigned int sublist_idx = ml->ml_index_func(ml, obj);
	multilist_sublist_t *mls;
	boolean_t need_lock;

	DTRACE_PROBE3(multilist__remove, multilist_t *, ml,
	unsigned int, sublist_idx, void *, obj);

	ASSERT3U(sublist_idx, <, ml->ml_num_sublists);

	mls = &ml->ml_sublists[sublist_idx];
	/* See comment in multilist_insert(). */
	need_lock = !MUTEX_HELD(&mls->mls_lock);

	if (need_lock)
	mutex_enter(&mls->mls_lock);

	ASSERT(multilist_link_active(multilist_d2l(ml, obj)));

	multilist_sublist_remove(mls, obj);

	if (need_lock)
	mutex_exit(&mls->mls_lock);
	}

	/*
	* Check to see if this multilist object is empty.
	*
	* This will return TRUE if it finds all of the sublists of this
	* multilist to be empty, and FALSE otherwise. Each sublist lock will be
	* automatically acquired as necessary.
	*
	* If concurrent insertions and removals are occurring, the semantics
	* of this function become a little fuzzy. Instead of locking all
	* sublists for the entire call time of the function, each sublist is
	* only locked as it is individually checked for emptiness. Thus, it's
	* possible for this function to return TRUE with non-empty sublists at
	* the time the function returns. This would be due to another thread
	* inserting into a given sublist, after that specific sublist was check
	* and deemed empty, but before all sublists have been checked.
	*/
	int
	multilist_is_empty(multilist_t *ml)
	{
	for (int i = 0; i < ml->ml_num_sublists; i++) {
	multilist_sublist_t *mls = &ml->ml_sublists[i];
	/* See comment in multilist_insert(). */
	boolean_t need_lock = !MUTEX_HELD(&mls->mls_lock);

	if (need_lock)
	mutex_enter(&mls->mls_lock);

	if (!list_is_empty(&mls->mls_list)) {
	if (need_lock)
	mutex_exit(&mls->mls_lock);

	return (FALSE);
	}

	if (need_lock)
	mutex_exit(&mls->mls_lock);
	}

	return (TRUE);
	}

	/* Return the number of sublists composing this multilist */
	unsigned int
	multilist_get_num_sublists(multilist_t *ml)
	{
	return (ml->ml_num_sublists);
	}

	/* Return a randomly selected, valid sublist index for this multilist */
	unsigned int
	multilist_get_random_index(multilist_t *ml)
	{
	return (spa_get_random(ml->ml_num_sublists));
	}

	/* Lock and return the sublist specified at the given index */
	multilist_sublist_t *
	multilist_sublist_lock(multilist_t *ml, unsigned int sublist_idx)
	{
	multilist_sublist_t *mls;

	ASSERT3U(sublist_idx, <, ml->ml_num_sublists);
	mls = &ml->ml_sublists[sublist_idx];
	mutex_enter(&mls->mls_lock);

	return (mls);
	}

	/* Lock and return the sublist that would be used to store the specified obj */
	multilist_sublist_t *
	multilist_sublist_lock_obj(multilist_t ml, void obj)
	{
	return (multilist_sublist_lock(ml, ml->ml_index_func(ml, obj)));
	}

	void
	multilist_sublist_unlock(multilist_sublist_t *mls)
	{
	mutex_exit(&mls->mls_lock);
	}

	/*
	* We're allowing any object to be inserted into this specific sublist,
	* but this can lead to trouble if multilist_remove() is called to
	* remove this object. Specifically, if calling ml_index_func on this
	* object returns an index for sublist different than what is passed as
	* a parameter here, any call to multilist_remove() with this newly
	* inserted object is undefined! (the call to multilist_remove() will
	* remove the object from a list that it isn't contained in)
	*/
	void
	multilist_sublist_insert_head(multilist_sublist_t mls, void obj)
	{
	ASSERT(MUTEX_HELD(&mls->mls_lock));
	list_insert_head(&mls->mls_list, obj);
	}

	/* please see comment above multilist_sublist_insert_head */
	void
	multilist_sublist_insert_tail(multilist_sublist_t mls, void obj)
	{
	ASSERT(MUTEX_HELD(&mls->mls_lock));
	list_insert_tail(&mls->mls_list, obj);
	}

	/*
	* Move the object one element forward in the list.
	*
	* This function will move the given object forward in the list (towards
	* the head) by one object. So, in essence, it will swap its position in
	* the list with its "prev" pointer. If the given object is already at the
	* head of the list, it cannot be moved forward any more than it already
	* is, so no action is taken.
	*
	* NOTE: This function must not remove any object from the list other
	* than the object given as the parameter. This is relied upon in
	* arc_evict_state_impl().
	*/
	void
	multilist_sublist_move_forward(multilist_sublist_t mls, void obj)
	{
	void *prev = list_prev(&mls->mls_list, obj);

	ASSERT(MUTEX_HELD(&mls->mls_lock));
	ASSERT(!list_is_empty(&mls->mls_list));

	/* 'obj' must be at the head of the list, nothing to do */
	if (prev == NULL)
	return;

	list_remove(&mls->mls_list, obj);
	list_insert_before(&mls->mls_list, prev, obj);
	}

	void
	multilist_sublist_remove(multilist_sublist_t mls, void obj)
	{
	ASSERT(MUTEX_HELD(&mls->mls_lock));
	list_remove(&mls->mls_list, obj);
	}

	int
	multilist_sublist_is_empty(multilist_sublist_t *mls)
	{
	ASSERT(MUTEX_HELD(&mls->mls_lock));
	return (list_is_empty(&mls->mls_list));
	}

	int
	multilist_sublist_is_empty_idx(multilist_t *ml, unsigned int sublist_idx)
	{
	multilist_sublist_t *mls;
	int empty;

	ASSERT3U(sublist_idx, <, ml->ml_num_sublists);
	mls = &ml->ml_sublists[sublist_idx];
	ASSERT(!MUTEX_HELD(&mls->mls_lock));
	mutex_enter(&mls->mls_lock);
	empty = list_is_empty(&mls->mls_list);
	mutex_exit(&mls->mls_lock);
	return (empty);
	}

	void *
	multilist_sublist_head(multilist_sublist_t *mls)
	{
	ASSERT(MUTEX_HELD(&mls->mls_lock));
	return (list_head(&mls->mls_list));
	}

	void *
	multilist_sublist_tail(multilist_sublist_t *mls)
	{
	ASSERT(MUTEX_HELD(&mls->mls_lock));
	return (list_tail(&mls->mls_list));
	}

	void *
	multilist_sublist_next(multilist_sublist_t mls, void obj)
	{
	ASSERT(MUTEX_HELD(&mls->mls_lock));
	return (list_next(&mls->mls_list, obj));
	}

	void *
	multilist_sublist_prev(multilist_sublist_t mls, void obj)
	{
	ASSERT(MUTEX_HELD(&mls->mls_lock));
	return (list_prev(&mls->mls_list, obj));
	}

	void
	multilist_link_init(multilist_node_t *link)
	{
	list_link_init(link);
	}

	int
	multilist_link_active(multilist_node_t *link)
	{
	return (list_link_active(link));
	}

	/* BEGIN CSTYLED */
	ZFS_MODULE_PARAM(zfs, zfs_, multilist_num_sublists, INT, ZMOD_RW,
	"Number of sublists used in each multilist");
	/* END CSTYLED */
	diff --git a/sys/contrib/openzfs/module/zfs/spa_stats.c b/sys/contrib/openzfs/module/zfs/spa_stats.c
	index c3eacc14239e..534ac72fee7b 100644
	--- a/sys/contrib/openzfs/module/zfs/spa_stats.c
	+++ b/sys/contrib/openzfs/module/zfs/spa_stats.c
	@@ -1,1029 +1,979 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	#include <sys/zfs_context.h>
	#include <sys/spa_impl.h>
	#include <sys/vdev_impl.h>
	#include <sys/spa.h>
	#include <zfs_comutil.h>

	/*
	* Keeps stats on last N reads per spa_t, disabled by default.
	*/
	int zfs_read_history = 0;

	/*
	* Include cache hits in history, disabled by default.
	*/
	int zfs_read_history_hits = 0;

	/*
	* Keeps stats on the last 100 txgs by default.
	*/
	int zfs_txg_history = 100;

	/*
	* Keeps stats on the last N MMP updates, disabled by default.
	*/
	int zfs_multihost_history = 0;

	/*
	* ==========================================================================
	* SPA Read History Routines
	* ==========================================================================
	*/

	/*
	* Read statistics - Information exported regarding each arc_read call
	*/
	typedef struct spa_read_history {
	hrtime_t start; /* time read completed */
	uint64_t objset; /* read from this objset */
	uint64_t object; /* read of this object number */
	uint64_t level; /* block's indirection level */
	uint64_t blkid; /* read of this block id */
	char origin[24]; /* read originated from here */
	uint32_t aflags; /* ARC flags (cached, prefetch, etc.) */
	pid_t pid; /* PID of task doing read */
	char comm[16]; /* process name of task doing read */
	procfs_list_node_t srh_node;
	} spa_read_history_t;

	static int
	spa_read_history_show_header(struct seq_file *f)
	{
	seq_printf(f, "%-8s %-16s %-8s %-8s %-8s %-8s %-8s "
	"%-24s %-8s %-16s\n", "UID", "start", "objset", "object",
	"level", "blkid", "aflags", "origin", "pid", "process");

	return (0);
	}

	static int
	spa_read_history_show(struct seq_file f, void data)
	{
	spa_read_history_t srh = (spa_read_history_t )data;

	seq_printf(f, "%-8llu %-16llu 0x%-6llx "
	"%-8lli %-8lli %-8lli 0x%-6x %-24s %-8i %-16s\n",
	(u_longlong_t)srh->srh_node.pln_id, srh->start,
	(longlong_t)srh->objset, (longlong_t)srh->object,
	(longlong_t)srh->level, (longlong_t)srh->blkid,
	srh->aflags, srh->origin, srh->pid, srh->comm);

	return (0);
	}

	/* Remove oldest elements from list until there are no more than 'size' left */
	static void
	spa_read_history_truncate(spa_history_list_t *shl, unsigned int size)
	{
	spa_read_history_t *srh;
	while (shl->size > size) {
	srh = list_remove_head(&shl->procfs_list.pl_list);
	ASSERT3P(srh, !=, NULL);
	kmem_free(srh, sizeof (spa_read_history_t));
	shl->size--;
	}

	if (size == 0)
	ASSERT(list_is_empty(&shl->procfs_list.pl_list));
	}

	static int
	spa_read_history_clear(procfs_list_t *procfs_list)
	{
	spa_history_list_t *shl = procfs_list->pl_private;
	mutex_enter(&procfs_list->pl_lock);
	spa_read_history_truncate(shl, 0);
	mutex_exit(&procfs_list->pl_lock);
	return (0);
	}

	static void
	spa_read_history_init(spa_t *spa)
	{
	spa_history_list_t *shl = &spa->spa_stats.read_history;

	shl->size = 0;
	shl->procfs_list.pl_private = shl;
	procfs_list_install("zfs",
	spa_name(spa),
	"reads",
	0600,
	&shl->procfs_list,
	spa_read_history_show,
	spa_read_history_show_header,
	spa_read_history_clear,
	offsetof(spa_read_history_t, srh_node));
	}

	static void
	spa_read_history_destroy(spa_t *spa)
	{
	spa_history_list_t *shl = &spa->spa_stats.read_history;
	procfs_list_uninstall(&shl->procfs_list);
	spa_read_history_truncate(shl, 0);
	procfs_list_destroy(&shl->procfs_list);
	}

	void
	spa_read_history_add(spa_t spa, const zbookmark_phys_t zb, uint32_t aflags)
	{
	spa_history_list_t *shl = &spa->spa_stats.read_history;
	spa_read_history_t *srh;

	ASSERT3P(spa, !=, NULL);
	ASSERT3P(zb, !=, NULL);

	if (zfs_read_history == 0 && shl->size == 0)
	return;

	if (zfs_read_history_hits == 0 && (aflags & ARC_FLAG_CACHED))
	return;

	srh = kmem_zalloc(sizeof (spa_read_history_t), KM_SLEEP);
	strlcpy(srh->comm, getcomm(), sizeof (srh->comm));
	srh->start = gethrtime();
	srh->objset = zb->zb_objset;
	srh->object = zb->zb_object;
	srh->level = zb->zb_level;
	srh->blkid = zb->zb_blkid;
	srh->aflags = aflags;
	srh->pid = getpid();

	mutex_enter(&shl->procfs_list.pl_lock);

	procfs_list_add(&shl->procfs_list, srh);
	shl->size++;

	spa_read_history_truncate(shl, zfs_read_history);

	mutex_exit(&shl->procfs_list.pl_lock);
	}

	/*
	* ==========================================================================
	* SPA TXG History Routines
	* ==========================================================================
	*/

	/*
	* Txg statistics - Information exported regarding each txg sync
	*/

	typedef struct spa_txg_history {
	uint64_t txg; /* txg id */
	txg_state_t state; /* active txg state */
	uint64_t nread; /* number of bytes read */
	uint64_t nwritten; /* number of bytes written */
	uint64_t reads; /* number of read operations */
	uint64_t writes; /* number of write operations */
	uint64_t ndirty; /* number of dirty bytes */
	hrtime_t times[TXG_STATE_COMMITTED]; /* completion times */
	procfs_list_node_t sth_node;
	} spa_txg_history_t;

	static int
	spa_txg_history_show_header(struct seq_file *f)
	{
	seq_printf(f, "%-8s %-16s %-5s %-12s %-12s %-12s "
	"%-8s %-8s %-12s %-12s %-12s %-12s\n", "txg", "birth", "state",
	"ndirty", "nread", "nwritten", "reads", "writes",
	"otime", "qtime", "wtime", "stime");
	return (0);
	}

	static int
	spa_txg_history_show(struct seq_file f, void data)
	{
	spa_txg_history_t sth = (spa_txg_history_t )data;
	uint64_t open = 0, quiesce = 0, wait = 0, sync = 0;
	char state;

	switch (sth->state) {
	case TXG_STATE_BIRTH: state = 'B'; break;
	case TXG_STATE_OPEN: state = 'O'; break;
	case TXG_STATE_QUIESCED: state = 'Q'; break;
	case TXG_STATE_WAIT_FOR_SYNC: state = 'W'; break;
	case TXG_STATE_SYNCED: state = 'S'; break;
	case TXG_STATE_COMMITTED: state = 'C'; break;
	default: state = '?'; break;
	}

	if (sth->times[TXG_STATE_OPEN])
	open = sth->times[TXG_STATE_OPEN] -
	sth->times[TXG_STATE_BIRTH];

	if (sth->times[TXG_STATE_QUIESCED])
	quiesce = sth->times[TXG_STATE_QUIESCED] -
	sth->times[TXG_STATE_OPEN];

	if (sth->times[TXG_STATE_WAIT_FOR_SYNC])
	wait = sth->times[TXG_STATE_WAIT_FOR_SYNC] -
	sth->times[TXG_STATE_QUIESCED];

	if (sth->times[TXG_STATE_SYNCED])
	sync = sth->times[TXG_STATE_SYNCED] -
	sth->times[TXG_STATE_WAIT_FOR_SYNC];

	seq_printf(f, "%-8llu %-16llu %-5c %-12llu "
	"%-12llu %-12llu %-8llu %-8llu %-12llu %-12llu %-12llu %-12llu\n",
	(longlong_t)sth->txg, sth->times[TXG_STATE_BIRTH], state,
	(u_longlong_t)sth->ndirty,
	(u_longlong_t)sth->nread, (u_longlong_t)sth->nwritten,
	(u_longlong_t)sth->reads, (u_longlong_t)sth->writes,
	(u_longlong_t)open, (u_longlong_t)quiesce, (u_longlong_t)wait,
	(u_longlong_t)sync);

	return (0);
	}

	/* Remove oldest elements from list until there are no more than 'size' left */
	static void
	spa_txg_history_truncate(spa_history_list_t *shl, unsigned int size)
	{
	spa_txg_history_t *sth;
	while (shl->size > size) {
	sth = list_remove_head(&shl->procfs_list.pl_list);
	ASSERT3P(sth, !=, NULL);
	kmem_free(sth, sizeof (spa_txg_history_t));
	shl->size--;
	}

	if (size == 0)
	ASSERT(list_is_empty(&shl->procfs_list.pl_list));

	}

	static int
	spa_txg_history_clear(procfs_list_t *procfs_list)
	{
	spa_history_list_t *shl = procfs_list->pl_private;
	mutex_enter(&procfs_list->pl_lock);
	spa_txg_history_truncate(shl, 0);
	mutex_exit(&procfs_list->pl_lock);
	return (0);
	}

	static void
	spa_txg_history_init(spa_t *spa)
	{
	spa_history_list_t *shl = &spa->spa_stats.txg_history;

	shl->size = 0;
	shl->procfs_list.pl_private = shl;
	procfs_list_install("zfs",
	spa_name(spa),
	"txgs",
	0644,
	&shl->procfs_list,
	spa_txg_history_show,
	spa_txg_history_show_header,
	spa_txg_history_clear,
	offsetof(spa_txg_history_t, sth_node));
	}

	static void
	spa_txg_history_destroy(spa_t *spa)
	{
	spa_history_list_t *shl = &spa->spa_stats.txg_history;
	procfs_list_uninstall(&shl->procfs_list);
	spa_txg_history_truncate(shl, 0);
	procfs_list_destroy(&shl->procfs_list);
	}

	/*
	* Add a new txg to historical record.
	*/
	void
	spa_txg_history_add(spa_t *spa, uint64_t txg, hrtime_t birth_time)
	{
	spa_history_list_t *shl = &spa->spa_stats.txg_history;
	spa_txg_history_t *sth;

	if (zfs_txg_history == 0 && shl->size == 0)
	return;

	sth = kmem_zalloc(sizeof (spa_txg_history_t), KM_SLEEP);
	sth->txg = txg;
	sth->state = TXG_STATE_OPEN;
	sth->times[TXG_STATE_BIRTH] = birth_time;

	mutex_enter(&shl->procfs_list.pl_lock);
	procfs_list_add(&shl->procfs_list, sth);
	shl->size++;
	spa_txg_history_truncate(shl, zfs_txg_history);
	mutex_exit(&shl->procfs_list.pl_lock);
	}

	/*
	* Set txg state completion time and increment current state.
	*/
	int
	spa_txg_history_set(spa_t *spa, uint64_t txg, txg_state_t completed_state,
	hrtime_t completed_time)
	{
	spa_history_list_t *shl = &spa->spa_stats.txg_history;
	spa_txg_history_t *sth;
	int error = ENOENT;

	if (zfs_txg_history == 0)
	return (0);

	mutex_enter(&shl->procfs_list.pl_lock);
	for (sth = list_tail(&shl->procfs_list.pl_list); sth != NULL;
	sth = list_prev(&shl->procfs_list.pl_list, sth)) {
	if (sth->txg == txg) {
	sth->times[completed_state] = completed_time;
	sth->state++;
	error = 0;
	break;
	}
	}
	mutex_exit(&shl->procfs_list.pl_lock);

	return (error);
	}

	/*
	* Set txg IO stats.
	*/
	static int
	spa_txg_history_set_io(spa_t *spa, uint64_t txg, uint64_t nread,
	uint64_t nwritten, uint64_t reads, uint64_t writes, uint64_t ndirty)
	{
	spa_history_list_t *shl = &spa->spa_stats.txg_history;
	spa_txg_history_t *sth;
	int error = ENOENT;

	if (zfs_txg_history == 0)
	return (0);

	mutex_enter(&shl->procfs_list.pl_lock);
	for (sth = list_tail(&shl->procfs_list.pl_list); sth != NULL;
	sth = list_prev(&shl->procfs_list.pl_list, sth)) {
	if (sth->txg == txg) {
	sth->nread = nread;
	sth->nwritten = nwritten;
	sth->reads = reads;
	sth->writes = writes;
	sth->ndirty = ndirty;
	error = 0;
	break;
	}
	}
	mutex_exit(&shl->procfs_list.pl_lock);

	return (error);
	}

	txg_stat_t *
	spa_txg_history_init_io(spa_t spa, uint64_t txg, dsl_pool_t dp)
	{
	txg_stat_t *ts;

	if (zfs_txg_history == 0)
	return (NULL);

	ts = kmem_alloc(sizeof (txg_stat_t), KM_SLEEP);

	spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
	vdev_get_stats(spa->spa_root_vdev, &ts->vs1);
	spa_config_exit(spa, SCL_CONFIG, FTAG);

	ts->txg = txg;
	ts->ndirty = dp->dp_dirty_pertxg[txg & TXG_MASK];

	spa_txg_history_set(spa, txg, TXG_STATE_WAIT_FOR_SYNC, gethrtime());

	return (ts);
	}

	void
	spa_txg_history_fini_io(spa_t spa, txg_stat_t ts)
	{
	if (ts == NULL)
	return;

	if (zfs_txg_history == 0) {
	kmem_free(ts, sizeof (txg_stat_t));
	return;
	}

	spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
	vdev_get_stats(spa->spa_root_vdev, &ts->vs2);
	spa_config_exit(spa, SCL_CONFIG, FTAG);

	spa_txg_history_set(spa, ts->txg, TXG_STATE_SYNCED, gethrtime());
	spa_txg_history_set_io(spa, ts->txg,
	ts->vs2.vs_bytes[ZIO_TYPE_READ] - ts->vs1.vs_bytes[ZIO_TYPE_READ],
	ts->vs2.vs_bytes[ZIO_TYPE_WRITE] - ts->vs1.vs_bytes[ZIO_TYPE_WRITE],
	ts->vs2.vs_ops[ZIO_TYPE_READ] - ts->vs1.vs_ops[ZIO_TYPE_READ],
	ts->vs2.vs_ops[ZIO_TYPE_WRITE] - ts->vs1.vs_ops[ZIO_TYPE_WRITE],
	ts->ndirty);

	kmem_free(ts, sizeof (txg_stat_t));
	}

	/*
	* ==========================================================================
	* SPA TX Assign Histogram Routines
	* ==========================================================================
	*/

	/*
	* Tx statistics - Information exported regarding dmu_tx_assign time.
	*/

	/*
	* When the kstat is written zero all buckets. When the kstat is read
	* count the number of trailing buckets set to zero and update ks_ndata
	* such that they are not output.
	*/
	static int
	spa_tx_assign_update(kstat_t *ksp, int rw)
	{
	spa_t *spa = ksp->ks_private;
	spa_history_kstat_t *shk = &spa->spa_stats.tx_assign_histogram;
	int i;

	if (rw == KSTAT_WRITE) {
	for (i = 0; i < shk->count; i++)
	((kstat_named_t *)shk->priv)[i].value.ui64 = 0;
	}

	for (i = shk->count; i > 0; i--)
	if (((kstat_named_t *)shk->priv)[i-1].value.ui64 != 0)
	break;

	ksp->ks_ndata = i;
	ksp->ks_data_size = i * sizeof (kstat_named_t);

	return (0);
	}

	static void
	spa_tx_assign_init(spa_t *spa)
	{
	spa_history_kstat_t *shk = &spa->spa_stats.tx_assign_histogram;
	char *name;
	kstat_named_t *ks;
	kstat_t *ksp;
	int i;

	mutex_init(&shk->lock, NULL, MUTEX_DEFAULT, NULL);

	shk->count = 42; /* power of two buckets for 1ns to 2,199s */
	shk->size = shk->count * sizeof (kstat_named_t);
	shk->priv = kmem_alloc(shk->size, KM_SLEEP);

	name = kmem_asprintf("zfs/%s", spa_name(spa));

	for (i = 0; i < shk->count; i++) {
	ks = &((kstat_named_t *)shk->priv)[i];
	ks->data_type = KSTAT_DATA_UINT64;
	ks->value.ui64 = 0;
	(void) snprintf(ks->name, KSTAT_STRLEN, "%llu ns",
	(u_longlong_t)1 << i);
	}

	ksp = kstat_create(name, 0, "dmu_tx_assign", "misc",
	KSTAT_TYPE_NAMED, 0, KSTAT_FLAG_VIRTUAL);
	shk->kstat = ksp;

	if (ksp) {
	ksp->ks_lock = &shk->lock;
	ksp->ks_data = shk->priv;
	ksp->ks_ndata = shk->count;
	ksp->ks_data_size = shk->size;
	ksp->ks_private = spa;
	ksp->ks_update = spa_tx_assign_update;
	kstat_install(ksp);
	}
	kmem_strfree(name);
	}

	static void
	spa_tx_assign_destroy(spa_t *spa)
	{
	spa_history_kstat_t *shk = &spa->spa_stats.tx_assign_histogram;
	kstat_t *ksp;

	ksp = shk->kstat;
	if (ksp)
	kstat_delete(ksp);

	kmem_free(shk->priv, shk->size);
	mutex_destroy(&shk->lock);
	}

	void
	spa_tx_assign_add_nsecs(spa_t *spa, uint64_t nsecs)
	{
	spa_history_kstat_t *shk = &spa->spa_stats.tx_assign_histogram;
	uint64_t idx = 0;

	while (((1ULL << idx) < nsecs) && (idx < shk->size - 1))
	idx++;

	atomic_inc_64(&((kstat_named_t *)shk->priv)[idx].value.ui64);
	}

	-/*
	- * ==========================================================================
	- * SPA IO History Routines
	- * ==========================================================================
	- */
	-static int
	-spa_io_history_update(kstat_t *ksp, int rw)
	-{
	- if (rw == KSTAT_WRITE)
	- memset(ksp->ks_data, 0, ksp->ks_data_size);
	-
	- return (0);
	-}
	-
	-static void
	-spa_io_history_init(spa_t *spa)
	-{
	- spa_history_kstat_t *shk = &spa->spa_stats.io_history;
	- char *name;
	- kstat_t *ksp;
	-
	- mutex_init(&shk->lock, NULL, MUTEX_DEFAULT, NULL);
	-
	- name = kmem_asprintf("zfs/%s", spa_name(spa));
	-
	- ksp = kstat_create(name, 0, "io", "disk", KSTAT_TYPE_IO, 1, 0);
	- shk->kstat = ksp;
	-
	- if (ksp) {
	- ksp->ks_lock = &shk->lock;
	- ksp->ks_private = spa;
	- ksp->ks_update = spa_io_history_update;
	- kstat_install(ksp);
	- }
	- kmem_strfree(name);
	-}
	-
	-static void
	-spa_io_history_destroy(spa_t *spa)
	-{
	- spa_history_kstat_t *shk = &spa->spa_stats.io_history;
	-
	- if (shk->kstat)
	- kstat_delete(shk->kstat);
	-
	- mutex_destroy(&shk->lock);
	-}
	-
	/*
	* ==========================================================================
	* SPA MMP History Routines
	* ==========================================================================
	*/

	/*
	* MMP statistics - Information exported regarding attempted MMP writes
	* For MMP writes issued, fields used as per comments below.
	* For MMP writes skipped, an entry represents a span of time when
	* writes were skipped for same reason (error from mmp_random_leaf).
	* Differences are:
	* timestamp time first write skipped, if >1 skipped in a row
	* mmp_delay delay value at timestamp
	* vdev_guid number of writes skipped
	* io_error one of enum mmp_error
	* duration time span (ns) of skipped writes
	*/

	typedef struct spa_mmp_history {
	uint64_t mmp_node_id; /* unique # for updates */
	uint64_t txg; /* txg of last sync */
	uint64_t timestamp; /* UTC time MMP write issued */
	uint64_t mmp_delay; /* mmp_thread.mmp_delay at timestamp */
	uint64_t vdev_guid; /* unique ID of leaf vdev */
	char *vdev_path;
	int vdev_label; /* vdev label */
	int io_error; /* error status of MMP write */
	hrtime_t error_start; /* hrtime of start of error period */
	hrtime_t duration; /* time from submission to completion */
	procfs_list_node_t smh_node;
	} spa_mmp_history_t;

	static int
	spa_mmp_history_show_header(struct seq_file *f)
	{
	seq_printf(f, "%-10s %-10s %-10s %-6s %-10s %-12s %-24s "
	"%-10s %s\n", "id", "txg", "timestamp", "error", "duration",
	"mmp_delay", "vdev_guid", "vdev_label", "vdev_path");
	return (0);
	}

	static int
	spa_mmp_history_show(struct seq_file f, void data)
	{
	spa_mmp_history_t smh = (spa_mmp_history_t )data;
	char skip_fmt[] = "%-10llu %-10llu %10llu %#6llx %10lld %12llu %-24llu "
	"%-10lld %s\n";
	char write_fmt[] = "%-10llu %-10llu %10llu %6lld %10lld %12llu %-24llu "
	"%-10lld %s\n";

	seq_printf(f, (smh->error_start ? skip_fmt : write_fmt),
	(u_longlong_t)smh->mmp_node_id, (u_longlong_t)smh->txg,
	(u_longlong_t)smh->timestamp, (longlong_t)smh->io_error,
	(longlong_t)smh->duration, (u_longlong_t)smh->mmp_delay,
	(u_longlong_t)smh->vdev_guid, (u_longlong_t)smh->vdev_label,
	(smh->vdev_path ? smh->vdev_path : "-"));

	return (0);
	}

	/* Remove oldest elements from list until there are no more than 'size' left */
	static void
	spa_mmp_history_truncate(spa_history_list_t *shl, unsigned int size)
	{
	spa_mmp_history_t *smh;
	while (shl->size > size) {
	smh = list_remove_head(&shl->procfs_list.pl_list);
	if (smh->vdev_path)
	kmem_strfree(smh->vdev_path);
	kmem_free(smh, sizeof (spa_mmp_history_t));
	shl->size--;
	}

	if (size == 0)
	ASSERT(list_is_empty(&shl->procfs_list.pl_list));

	}

	static int
	spa_mmp_history_clear(procfs_list_t *procfs_list)
	{
	spa_history_list_t *shl = procfs_list->pl_private;
	mutex_enter(&procfs_list->pl_lock);
	spa_mmp_history_truncate(shl, 0);
	mutex_exit(&procfs_list->pl_lock);
	return (0);
	}

	static void
	spa_mmp_history_init(spa_t *spa)
	{
	spa_history_list_t *shl = &spa->spa_stats.mmp_history;

	shl->size = 0;

	shl->procfs_list.pl_private = shl;
	procfs_list_install("zfs",
	spa_name(spa),
	"multihost",
	0644,
	&shl->procfs_list,
	spa_mmp_history_show,
	spa_mmp_history_show_header,
	spa_mmp_history_clear,
	offsetof(spa_mmp_history_t, smh_node));
	}

	static void
	spa_mmp_history_destroy(spa_t *spa)
	{
	spa_history_list_t *shl = &spa->spa_stats.mmp_history;
	procfs_list_uninstall(&shl->procfs_list);
	spa_mmp_history_truncate(shl, 0);
	procfs_list_destroy(&shl->procfs_list);
	}

	/*
	* Set duration in existing "skip" record to how long we have waited for a leaf
	* vdev to become available.
	*
	* Important that we start search at the tail of the list where new
	* records are inserted, so this is normally an O(1) operation.
	*/
	int
	spa_mmp_history_set_skip(spa_t *spa, uint64_t mmp_node_id)
	{
	spa_history_list_t *shl = &spa->spa_stats.mmp_history;
	spa_mmp_history_t *smh;
	int error = ENOENT;

	if (zfs_multihost_history == 0 && shl->size == 0)
	return (0);

	mutex_enter(&shl->procfs_list.pl_lock);
	for (smh = list_tail(&shl->procfs_list.pl_list); smh != NULL;
	smh = list_prev(&shl->procfs_list.pl_list, smh)) {
	if (smh->mmp_node_id == mmp_node_id) {
	ASSERT3U(smh->io_error, !=, 0);
	smh->duration = gethrtime() - smh->error_start;
	smh->vdev_guid++;
	error = 0;
	break;
	}
	}
	mutex_exit(&shl->procfs_list.pl_lock);

	return (error);
	}

	/*
	* Set MMP write duration and error status in existing record.
	* See comment re: search order above spa_mmp_history_set_skip().
	*/
	int
	spa_mmp_history_set(spa_t *spa, uint64_t mmp_node_id, int io_error,
	hrtime_t duration)
	{
	spa_history_list_t *shl = &spa->spa_stats.mmp_history;
	spa_mmp_history_t *smh;
	int error = ENOENT;

	if (zfs_multihost_history == 0 && shl->size == 0)
	return (0);

	mutex_enter(&shl->procfs_list.pl_lock);
	for (smh = list_tail(&shl->procfs_list.pl_list); smh != NULL;
	smh = list_prev(&shl->procfs_list.pl_list, smh)) {
	if (smh->mmp_node_id == mmp_node_id) {
	ASSERT(smh->io_error == 0);
	smh->io_error = io_error;
	smh->duration = duration;
	error = 0;
	break;
	}
	}
	mutex_exit(&shl->procfs_list.pl_lock);

	return (error);
	}

	/*
	* Add a new MMP historical record.
	* error == 0 : a write was issued.
	* error != 0 : a write was not issued because no leaves were found.
	*/
	void
	spa_mmp_history_add(spa_t *spa, uint64_t txg, uint64_t timestamp,
	uint64_t mmp_delay, vdev_t *vd, int label, uint64_t mmp_node_id,
	int error)
	{
	spa_history_list_t *shl = &spa->spa_stats.mmp_history;
	spa_mmp_history_t *smh;

	if (zfs_multihost_history == 0 && shl->size == 0)
	return;

	smh = kmem_zalloc(sizeof (spa_mmp_history_t), KM_SLEEP);
	smh->txg = txg;
	smh->timestamp = timestamp;
	smh->mmp_delay = mmp_delay;
	if (vd) {
	smh->vdev_guid = vd->vdev_guid;
	if (vd->vdev_path)
	smh->vdev_path = kmem_strdup(vd->vdev_path);
	}
	smh->vdev_label = label;
	smh->mmp_node_id = mmp_node_id;

	if (error) {
	smh->io_error = error;
	smh->error_start = gethrtime();
	smh->vdev_guid = 1;
	}

	mutex_enter(&shl->procfs_list.pl_lock);
	procfs_list_add(&shl->procfs_list, smh);
	shl->size++;
	spa_mmp_history_truncate(shl, zfs_multihost_history);
	mutex_exit(&shl->procfs_list.pl_lock);
	}

	static void *
	spa_state_addr(kstat_t *ksp, loff_t n)
	{
	if (n == 0)
	return (ksp->ks_private); /* return the spa_t */
	return (NULL);
	}

	static int
	spa_state_data(char buf, size_t size, void data)
	{
	spa_t spa = (spa_t )data;
	(void) snprintf(buf, size, "%s\n", spa_state_to_name(spa));
	return (0);
	}

	/*
	* Return the state of the pool in /proc/spl/kstat/zfs/<pool>/state.
	*
	* This is a lock-less read of the pool's state (unlike using 'zpool', which
	* can potentially block for seconds). Because it doesn't block, it can useful
	* as a pool heartbeat value.
	*/
	static void
	spa_state_init(spa_t *spa)
	{
	spa_history_kstat_t *shk = &spa->spa_stats.state;
	char *name;
	kstat_t *ksp;

	mutex_init(&shk->lock, NULL, MUTEX_DEFAULT, NULL);

	name = kmem_asprintf("zfs/%s", spa_name(spa));
	ksp = kstat_create(name, 0, "state", "misc",
	KSTAT_TYPE_RAW, 0, KSTAT_FLAG_VIRTUAL);

	shk->kstat = ksp;
	if (ksp) {
	ksp->ks_lock = &shk->lock;
	ksp->ks_data = NULL;
	ksp->ks_private = spa;
	ksp->ks_flags \|= KSTAT_FLAG_NO_HEADERS;
	kstat_set_raw_ops(ksp, NULL, spa_state_data, spa_state_addr);
	kstat_install(ksp);
	}

	kmem_strfree(name);
	}

	static void
	spa_health_destroy(spa_t *spa)
	{
	spa_history_kstat_t *shk = &spa->spa_stats.state;
	kstat_t *ksp = shk->kstat;
	if (ksp)
	kstat_delete(ksp);

	mutex_destroy(&shk->lock);
	}

	static spa_iostats_t spa_iostats_template = {
	{ "trim_extents_written", KSTAT_DATA_UINT64 },
	{ "trim_bytes_written", KSTAT_DATA_UINT64 },
	{ "trim_extents_skipped", KSTAT_DATA_UINT64 },
	{ "trim_bytes_skipped", KSTAT_DATA_UINT64 },
	{ "trim_extents_failed", KSTAT_DATA_UINT64 },
	{ "trim_bytes_failed", KSTAT_DATA_UINT64 },
	{ "autotrim_extents_written", KSTAT_DATA_UINT64 },
	{ "autotrim_bytes_written", KSTAT_DATA_UINT64 },
	{ "autotrim_extents_skipped", KSTAT_DATA_UINT64 },
	{ "autotrim_bytes_skipped", KSTAT_DATA_UINT64 },
	{ "autotrim_extents_failed", KSTAT_DATA_UINT64 },
	{ "autotrim_bytes_failed", KSTAT_DATA_UINT64 },
	{ "simple_trim_extents_written", KSTAT_DATA_UINT64 },
	{ "simple_trim_bytes_written", KSTAT_DATA_UINT64 },
	{ "simple_trim_extents_skipped", KSTAT_DATA_UINT64 },
	{ "simple_trim_bytes_skipped", KSTAT_DATA_UINT64 },
	{ "simple_trim_extents_failed", KSTAT_DATA_UINT64 },
	{ "simple_trim_bytes_failed", KSTAT_DATA_UINT64 },
	};

	#define SPA_IOSTATS_ADD(stat, val) \
	atomic_add_64(&iostats->stat.value.ui64, (val));

	void
	spa_iostats_trim_add(spa_t *spa, trim_type_t type,
	uint64_t extents_written, uint64_t bytes_written,
	uint64_t extents_skipped, uint64_t bytes_skipped,
	uint64_t extents_failed, uint64_t bytes_failed)
	{
	spa_history_kstat_t *shk = &spa->spa_stats.iostats;
	kstat_t *ksp = shk->kstat;
	spa_iostats_t *iostats;

	if (ksp == NULL)
	return;

	iostats = ksp->ks_data;
	if (type == TRIM_TYPE_MANUAL) {
	SPA_IOSTATS_ADD(trim_extents_written, extents_written);
	SPA_IOSTATS_ADD(trim_bytes_written, bytes_written);
	SPA_IOSTATS_ADD(trim_extents_skipped, extents_skipped);
	SPA_IOSTATS_ADD(trim_bytes_skipped, bytes_skipped);
	SPA_IOSTATS_ADD(trim_extents_failed, extents_failed);
	SPA_IOSTATS_ADD(trim_bytes_failed, bytes_failed);
	} else if (type == TRIM_TYPE_AUTO) {
	SPA_IOSTATS_ADD(autotrim_extents_written, extents_written);
	SPA_IOSTATS_ADD(autotrim_bytes_written, bytes_written);
	SPA_IOSTATS_ADD(autotrim_extents_skipped, extents_skipped);
	SPA_IOSTATS_ADD(autotrim_bytes_skipped, bytes_skipped);
	SPA_IOSTATS_ADD(autotrim_extents_failed, extents_failed);
	SPA_IOSTATS_ADD(autotrim_bytes_failed, bytes_failed);
	} else {
	SPA_IOSTATS_ADD(simple_trim_extents_written, extents_written);
	SPA_IOSTATS_ADD(simple_trim_bytes_written, bytes_written);
	SPA_IOSTATS_ADD(simple_trim_extents_skipped, extents_skipped);
	SPA_IOSTATS_ADD(simple_trim_bytes_skipped, bytes_skipped);
	SPA_IOSTATS_ADD(simple_trim_extents_failed, extents_failed);
	SPA_IOSTATS_ADD(simple_trim_bytes_failed, bytes_failed);
	}
	}

	static int
	spa_iostats_update(kstat_t *ksp, int rw)
	{
	if (rw == KSTAT_WRITE) {
	memcpy(ksp->ks_data, &spa_iostats_template,
	sizeof (spa_iostats_t));
	}

	return (0);
	}

	static void
	spa_iostats_init(spa_t *spa)
	{
	spa_history_kstat_t *shk = &spa->spa_stats.iostats;

	mutex_init(&shk->lock, NULL, MUTEX_DEFAULT, NULL);

	char *name = kmem_asprintf("zfs/%s", spa_name(spa));
	kstat_t *ksp = kstat_create(name, 0, "iostats", "misc",
	KSTAT_TYPE_NAMED, sizeof (spa_iostats_t) / sizeof (kstat_named_t),
	KSTAT_FLAG_VIRTUAL);

	shk->kstat = ksp;
	if (ksp) {
	int size = sizeof (spa_iostats_t);
	ksp->ks_lock = &shk->lock;
	ksp->ks_private = spa;
	ksp->ks_update = spa_iostats_update;
	ksp->ks_data = kmem_alloc(size, KM_SLEEP);
	memcpy(ksp->ks_data, &spa_iostats_template, size);
	kstat_install(ksp);
	}

	kmem_strfree(name);
	}

	static void
	spa_iostats_destroy(spa_t *spa)
	{
	spa_history_kstat_t *shk = &spa->spa_stats.iostats;
	kstat_t *ksp = shk->kstat;
	if (ksp) {
	kmem_free(ksp->ks_data, sizeof (spa_iostats_t));
	kstat_delete(ksp);
	}

	mutex_destroy(&shk->lock);
	}

	void
	spa_stats_init(spa_t *spa)
	{
	spa_read_history_init(spa);
	spa_txg_history_init(spa);
	spa_tx_assign_init(spa);
	- spa_io_history_init(spa);
	spa_mmp_history_init(spa);
	spa_state_init(spa);
	spa_iostats_init(spa);
	}

	void
	spa_stats_destroy(spa_t *spa)
	{
	spa_iostats_destroy(spa);
	spa_health_destroy(spa);
	spa_tx_assign_destroy(spa);
	spa_txg_history_destroy(spa);
	spa_read_history_destroy(spa);
	- spa_io_history_destroy(spa);
	spa_mmp_history_destroy(spa);
	}

	/* BEGIN CSTYLED */
	ZFS_MODULE_PARAM(zfs, zfs_, read_history, INT, ZMOD_RW,
	"Historical statistics for the last N reads");

	ZFS_MODULE_PARAM(zfs, zfs_, read_history_hits, INT, ZMOD_RW,
	"Include cache hits in read history");

	ZFS_MODULE_PARAM(zfs_txg, zfs_txg_, history, INT, ZMOD_RW,
	"Historical statistics for the last N txgs");

	ZFS_MODULE_PARAM(zfs_multihost, zfs_multihost_, history, INT, ZMOD_RW,
	"Historical statistics for last N multihost writes");
	/* END CSTYLED */
	diff --git a/sys/contrib/openzfs/module/zfs/vdev_queue.c b/sys/contrib/openzfs/module/zfs/vdev_queue.c
	index 25a4bc69cc23..198861edb816 100644
	--- a/sys/contrib/openzfs/module/zfs/vdev_queue.c
	+++ b/sys/contrib/openzfs/module/zfs/vdev_queue.c
	@@ -1,1164 +1,1117 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/
	/*
	* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
	* Use is subject to license terms.
	*/

	/*
	* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
	*/

	#include <sys/zfs_context.h>
	#include <sys/vdev_impl.h>
	#include <sys/spa_impl.h>
	#include <sys/zio.h>
	#include <sys/avl.h>
	#include <sys/dsl_pool.h>
	#include <sys/metaslab_impl.h>
	#include <sys/spa.h>
	-#include <sys/spa_impl.h>
	-#include <sys/kstat.h>
	#include <sys/abd.h>

	/*
	* ZFS I/O Scheduler
	* ---------------
	*
	* ZFS issues I/O operations to leaf vdevs to satisfy and complete zios. The
	* I/O scheduler determines when and in what order those operations are
	* issued. The I/O scheduler divides operations into five I/O classes
	* prioritized in the following order: sync read, sync write, async read,
	* async write, and scrub/resilver. Each queue defines the minimum and
	* maximum number of concurrent operations that may be issued to the device.
	* In addition, the device has an aggregate maximum. Note that the sum of the
	* per-queue minimums must not exceed the aggregate maximum. If the
	* sum of the per-queue maximums exceeds the aggregate maximum, then the
	* number of active i/os may reach zfs_vdev_max_active, in which case no
	* further i/os will be issued regardless of whether all per-queue
	* minimums have been met.
	*
	* For many physical devices, throughput increases with the number of
	* concurrent operations, but latency typically suffers. Further, physical
	* devices typically have a limit at which more concurrent operations have no
	* effect on throughput or can actually cause it to decrease.
	*
	* The scheduler selects the next operation to issue by first looking for an
	* I/O class whose minimum has not been satisfied. Once all are satisfied and
	* the aggregate maximum has not been hit, the scheduler looks for classes
	* whose maximum has not been satisfied. Iteration through the I/O classes is
	* done in the order specified above. No further operations are issued if the
	* aggregate maximum number of concurrent operations has been hit or if there
	* are no operations queued for an I/O class that has not hit its maximum.
	* Every time an i/o is queued or an operation completes, the I/O scheduler
	* looks for new operations to issue.
	*
	* All I/O classes have a fixed maximum number of outstanding operations
	* except for the async write class. Asynchronous writes represent the data
	* that is committed to stable storage during the syncing stage for
	* transaction groups (see txg.c). Transaction groups enter the syncing state
	* periodically so the number of queued async writes will quickly burst up and
	* then bleed down to zero. Rather than servicing them as quickly as possible,
	* the I/O scheduler changes the maximum number of active async write i/os
	* according to the amount of dirty data in the pool (see dsl_pool.c). Since
	* both throughput and latency typically increase with the number of
	* concurrent operations issued to physical devices, reducing the burstiness
	* in the number of concurrent operations also stabilizes the response time of
	* operations from other -- and in particular synchronous -- queues. In broad
	* strokes, the I/O scheduler will issue more concurrent operations from the
	* async write queue as there's more dirty data in the pool.
	*
	* Async Writes
	*
	* The number of concurrent operations issued for the async write I/O class
	* follows a piece-wise linear function defined by a few adjustable points.
	*
	* \| o---------\| <-- zfs_vdev_async_write_max_active
	* ^ \| /^ \|
	* \| \| / \| \|
	* active \| / \| \|
	* I/O \| / \| \|
	* count \| / \| \|
	* \| / \| \|
	* \|------------o \| \| <-- zfs_vdev_async_write_min_active
	* 0\|____________^______\|_________\|
	* 0% \| \| 100% of zfs_dirty_data_max
	* \| \|
	* \| `-- zfs_vdev_async_write_active_max_dirty_percent
	* `--------- zfs_vdev_async_write_active_min_dirty_percent
	*
	* Until the amount of dirty data exceeds a minimum percentage of the dirty
	* data allowed in the pool, the I/O scheduler will limit the number of
	* concurrent operations to the minimum. As that threshold is crossed, the
	* number of concurrent operations issued increases linearly to the maximum at
	* the specified maximum percentage of the dirty data allowed in the pool.
	*
	* Ideally, the amount of dirty data on a busy pool will stay in the sloped
	* part of the function between zfs_vdev_async_write_active_min_dirty_percent
	* and zfs_vdev_async_write_active_max_dirty_percent. If it exceeds the
	* maximum percentage, this indicates that the rate of incoming data is
	* greater than the rate that the backend storage can handle. In this case, we
	* must further throttle incoming writes (see dmu_tx_delay() for details).
	*/

	/*
	* The maximum number of i/os active to each device. Ideally, this will be >=
	* the sum of each queue's max_active.
	*/
	uint32_t zfs_vdev_max_active = 1000;

	/*
	* Per-queue limits on the number of i/os active to each device. If the
	* number of active i/os is < zfs_vdev_max_active, then the min_active comes
	* into play. We will send min_active from each queue round-robin, and then
	* send from queues in the order defined by zio_priority_t up to max_active.
	* Some queues have additional mechanisms to limit number of active I/Os in
	* addition to min_active and max_active, see below.
	*
	* In general, smaller max_active's will lead to lower latency of synchronous
	* operations. Larger max_active's may lead to higher overall throughput,
	* depending on underlying storage.
	*
	* The ratio of the queues' max_actives determines the balance of performance
	* between reads, writes, and scrubs. E.g., increasing
	* zfs_vdev_scrub_max_active will cause the scrub or resilver to complete
	* more quickly, but reads and writes to have higher latency and lower
	* throughput.
	*/
	uint32_t zfs_vdev_sync_read_min_active = 10;
	uint32_t zfs_vdev_sync_read_max_active = 10;
	uint32_t zfs_vdev_sync_write_min_active = 10;
	uint32_t zfs_vdev_sync_write_max_active = 10;
	uint32_t zfs_vdev_async_read_min_active = 1;
	uint32_t zfs_vdev_async_read_max_active = 3;
	uint32_t zfs_vdev_async_write_min_active = 2;
	uint32_t zfs_vdev_async_write_max_active = 10;
	uint32_t zfs_vdev_scrub_min_active = 1;
	uint32_t zfs_vdev_scrub_max_active = 3;
	uint32_t zfs_vdev_removal_min_active = 1;
	uint32_t zfs_vdev_removal_max_active = 2;
	uint32_t zfs_vdev_initializing_min_active = 1;
	uint32_t zfs_vdev_initializing_max_active = 1;
	uint32_t zfs_vdev_trim_min_active = 1;
	uint32_t zfs_vdev_trim_max_active = 2;
	uint32_t zfs_vdev_rebuild_min_active = 1;
	uint32_t zfs_vdev_rebuild_max_active = 3;

	/*
	* When the pool has less than zfs_vdev_async_write_active_min_dirty_percent
	* dirty data, use zfs_vdev_async_write_min_active. When it has more than
	* zfs_vdev_async_write_active_max_dirty_percent, use
	* zfs_vdev_async_write_max_active. The value is linearly interpolated
	* between min and max.
	*/
	int zfs_vdev_async_write_active_min_dirty_percent = 30;
	int zfs_vdev_async_write_active_max_dirty_percent = 60;

	/*
	* For non-interactive I/O (scrub, resilver, removal, initialize and rebuild),
	* the number of concurrently-active I/O's is limited to *_min_active, unless
	* the vdev is "idle". When there are no interactive I/Os active (sync or
	* async), and zfs_vdev_nia_delay I/Os have completed since the last
	* interactive I/O, then the vdev is considered to be "idle", and the number
	* of concurrently-active non-interactive I/O's is increased to *_max_active.
	*/
	uint_t zfs_vdev_nia_delay = 5;

	/*
	* Some HDDs tend to prioritize sequential I/O so high that concurrent
	* random I/O latency reaches several seconds. On some HDDs it happens
	* even if sequential I/Os are submitted one at a time, and so setting
	* *_max_active to 1 does not help. To prevent non-interactive I/Os, like
	* scrub, from monopolizing the device no more than zfs_vdev_nia_credit
	* I/Os can be sent while there are outstanding incomplete interactive
	* I/Os. This enforced wait ensures the HDD services the interactive I/O
	* within a reasonable amount of time.
	*/
	uint_t zfs_vdev_nia_credit = 5;

	/*
	* To reduce IOPs, we aggregate small adjacent I/Os into one large I/O.
	* For read I/Os, we also aggregate across small adjacency gaps; for writes
	* we include spans of optional I/Os to aid aggregation at the disk even when
	* they aren't able to help us aggregate at this level.
	*/
	int zfs_vdev_aggregation_limit = 1 << 20;
	int zfs_vdev_aggregation_limit_non_rotating = SPA_OLD_MAXBLOCKSIZE;
	int zfs_vdev_read_gap_limit = 32 << 10;
	int zfs_vdev_write_gap_limit = 4 << 10;

	/*
	* Define the queue depth percentage for each top-level. This percentage is
	* used in conjunction with zfs_vdev_async_max_active to determine how many
	* allocations a specific top-level vdev should handle. Once the queue depth
	* reaches zfs_vdev_queue_depth_pct * zfs_vdev_async_write_max_active / 100
	* then allocator will stop allocating blocks on that top-level device.
	* The default kernel setting is 1000% which will yield 100 allocations per
	* device. For userland testing, the default setting is 300% which equates
	* to 30 allocations per device.
	*/
	#ifdef _KERNEL
	int zfs_vdev_queue_depth_pct = 1000;
	#else
	int zfs_vdev_queue_depth_pct = 300;
	#endif

	/*
	* When performing allocations for a given metaslab, we want to make sure that
	* there are enough IOs to aggregate together to improve throughput. We want to
	* ensure that there are at least 128k worth of IOs that can be aggregated, and
	* we assume that the average allocation size is 4k, so we need the queue depth
	* to be 32 per allocator to get good aggregation of sequential writes.
	*/
	int zfs_vdev_def_queue_depth = 32;

	/*
	* Allow TRIM I/Os to be aggregated. This should normally not be needed since
	* TRIM I/O for extents up to zfs_trim_extent_bytes_max (128M) can be submitted
	* by the TRIM code in zfs_trim.c.
	*/
	int zfs_vdev_aggregate_trim = 0;

	static int
	vdev_queue_offset_compare(const void x1, const void x2)
	{
	const zio_t z1 = (const zio_t )x1;
	const zio_t z2 = (const zio_t )x2;

	int cmp = TREE_CMP(z1->io_offset, z2->io_offset);

	if (likely(cmp))
	return (cmp);

	return (TREE_PCMP(z1, z2));
	}

	static inline avl_tree_t *
	vdev_queue_class_tree(vdev_queue_t *vq, zio_priority_t p)
	{
	return (&vq->vq_class[p].vqc_queued_tree);
	}

	static inline avl_tree_t *
	vdev_queue_type_tree(vdev_queue_t *vq, zio_type_t t)
	{
	ASSERT(t == ZIO_TYPE_READ \|\| t == ZIO_TYPE_WRITE \|\| t == ZIO_TYPE_TRIM);
	if (t == ZIO_TYPE_READ)
	return (&vq->vq_read_offset_tree);
	else if (t == ZIO_TYPE_WRITE)
	return (&vq->vq_write_offset_tree);
	else
	return (&vq->vq_trim_offset_tree);
	}

	static int
	vdev_queue_timestamp_compare(const void x1, const void x2)
	{
	const zio_t z1 = (const zio_t )x1;
	const zio_t z2 = (const zio_t )x2;

	int cmp = TREE_CMP(z1->io_timestamp, z2->io_timestamp);

	if (likely(cmp))
	return (cmp);

	return (TREE_PCMP(z1, z2));
	}

	static int
	vdev_queue_class_min_active(vdev_queue_t *vq, zio_priority_t p)
	{
	switch (p) {
	case ZIO_PRIORITY_SYNC_READ:
	return (zfs_vdev_sync_read_min_active);
	case ZIO_PRIORITY_SYNC_WRITE:
	return (zfs_vdev_sync_write_min_active);
	case ZIO_PRIORITY_ASYNC_READ:
	return (zfs_vdev_async_read_min_active);
	case ZIO_PRIORITY_ASYNC_WRITE:
	return (zfs_vdev_async_write_min_active);
	case ZIO_PRIORITY_SCRUB:
	return (vq->vq_ia_active == 0 ? zfs_vdev_scrub_min_active :
	MIN(vq->vq_nia_credit, zfs_vdev_scrub_min_active));
	case ZIO_PRIORITY_REMOVAL:
	return (vq->vq_ia_active == 0 ? zfs_vdev_removal_min_active :
	MIN(vq->vq_nia_credit, zfs_vdev_removal_min_active));
	case ZIO_PRIORITY_INITIALIZING:
	return (vq->vq_ia_active == 0 ?zfs_vdev_initializing_min_active:
	MIN(vq->vq_nia_credit, zfs_vdev_initializing_min_active));
	case ZIO_PRIORITY_TRIM:
	return (zfs_vdev_trim_min_active);
	case ZIO_PRIORITY_REBUILD:
	return (vq->vq_ia_active == 0 ? zfs_vdev_rebuild_min_active :
	MIN(vq->vq_nia_credit, zfs_vdev_rebuild_min_active));
	default:
	panic("invalid priority %u", p);
	return (0);
	}
	}

	static int
	vdev_queue_max_async_writes(spa_t *spa)
	{
	int writes;
	uint64_t dirty = 0;
	dsl_pool_t *dp = spa_get_dsl(spa);
	uint64_t min_bytes = zfs_dirty_data_max *
	zfs_vdev_async_write_active_min_dirty_percent / 100;
	uint64_t max_bytes = zfs_dirty_data_max *
	zfs_vdev_async_write_active_max_dirty_percent / 100;

	/*
	* Async writes may occur before the assignment of the spa's
	* dsl_pool_t if a self-healing zio is issued prior to the
	* completion of dmu_objset_open_impl().
	*/
	if (dp == NULL)
	return (zfs_vdev_async_write_max_active);

	/*
	* Sync tasks correspond to interactive user actions. To reduce the
	* execution time of those actions we push data out as fast as possible.
	*/
	dirty = dp->dp_dirty_total;
	if (dirty > max_bytes \|\| spa_has_pending_synctask(spa))
	return (zfs_vdev_async_write_max_active);

	if (dirty < min_bytes)
	return (zfs_vdev_async_write_min_active);

	/*
	* linear interpolation:
	* slope = (max_writes - min_writes) / (max_bytes - min_bytes)
	* move right by min_bytes
	* move up by min_writes
	*/
	writes = (dirty - min_bytes) *
	(zfs_vdev_async_write_max_active -
	zfs_vdev_async_write_min_active) /
	(max_bytes - min_bytes) +
	zfs_vdev_async_write_min_active;
	ASSERT3U(writes, >=, zfs_vdev_async_write_min_active);
	ASSERT3U(writes, <=, zfs_vdev_async_write_max_active);
	return (writes);
	}

	static int
	vdev_queue_class_max_active(spa_t spa, vdev_queue_t vq, zio_priority_t p)
	{
	switch (p) {
	case ZIO_PRIORITY_SYNC_READ:
	return (zfs_vdev_sync_read_max_active);
	case ZIO_PRIORITY_SYNC_WRITE:
	return (zfs_vdev_sync_write_max_active);
	case ZIO_PRIORITY_ASYNC_READ:
	return (zfs_vdev_async_read_max_active);
	case ZIO_PRIORITY_ASYNC_WRITE:
	return (vdev_queue_max_async_writes(spa));
	case ZIO_PRIORITY_SCRUB:
	if (vq->vq_ia_active > 0) {
	return (MIN(vq->vq_nia_credit,
	zfs_vdev_scrub_min_active));
	} else if (vq->vq_nia_credit < zfs_vdev_nia_delay)
	return (MAX(1, zfs_vdev_scrub_min_active));
	return (zfs_vdev_scrub_max_active);
	case ZIO_PRIORITY_REMOVAL:
	if (vq->vq_ia_active > 0) {
	return (MIN(vq->vq_nia_credit,
	zfs_vdev_removal_min_active));
	} else if (vq->vq_nia_credit < zfs_vdev_nia_delay)
	return (MAX(1, zfs_vdev_removal_min_active));
	return (zfs_vdev_removal_max_active);
	case ZIO_PRIORITY_INITIALIZING:
	if (vq->vq_ia_active > 0) {
	return (MIN(vq->vq_nia_credit,
	zfs_vdev_initializing_min_active));
	} else if (vq->vq_nia_credit < zfs_vdev_nia_delay)
	return (MAX(1, zfs_vdev_initializing_min_active));
	return (zfs_vdev_initializing_max_active);
	case ZIO_PRIORITY_TRIM:
	return (zfs_vdev_trim_max_active);
	case ZIO_PRIORITY_REBUILD:
	if (vq->vq_ia_active > 0) {
	return (MIN(vq->vq_nia_credit,
	zfs_vdev_rebuild_min_active));
	} else if (vq->vq_nia_credit < zfs_vdev_nia_delay)
	return (MAX(1, zfs_vdev_rebuild_min_active));
	return (zfs_vdev_rebuild_max_active);
	default:
	panic("invalid priority %u", p);
	return (0);
	}
	}

	/*
	* Return the i/o class to issue from, or ZIO_PRIORITY_MAX_QUEUEABLE if
	* there is no eligible class.
	*/
	static zio_priority_t
	vdev_queue_class_to_issue(vdev_queue_t *vq)
	{
	spa_t *spa = vq->vq_vdev->vdev_spa;
	zio_priority_t p, n;

	if (avl_numnodes(&vq->vq_active_tree) >= zfs_vdev_max_active)
	return (ZIO_PRIORITY_NUM_QUEUEABLE);

	/*
	* Find a queue that has not reached its minimum # outstanding i/os.
	* Do round-robin to reduce starvation due to zfs_vdev_max_active
	* and vq_nia_credit limits.
	*/
	for (n = 0; n < ZIO_PRIORITY_NUM_QUEUEABLE; n++) {
	p = (vq->vq_last_prio + n + 1) % ZIO_PRIORITY_NUM_QUEUEABLE;
	if (avl_numnodes(vdev_queue_class_tree(vq, p)) > 0 &&
	vq->vq_class[p].vqc_active <
	vdev_queue_class_min_active(vq, p)) {
	vq->vq_last_prio = p;
	return (p);
	}
	}

	/*
	* If we haven't found a queue, look for one that hasn't reached its
	* maximum # outstanding i/os.
	*/
	for (p = 0; p < ZIO_PRIORITY_NUM_QUEUEABLE; p++) {
	if (avl_numnodes(vdev_queue_class_tree(vq, p)) > 0 &&
	vq->vq_class[p].vqc_active <
	vdev_queue_class_max_active(spa, vq, p)) {
	vq->vq_last_prio = p;
	return (p);
	}
	}

	/* No eligible queued i/os */
	return (ZIO_PRIORITY_NUM_QUEUEABLE);
	}

	void
	vdev_queue_init(vdev_t *vd)
	{
	vdev_queue_t *vq = &vd->vdev_queue;
	zio_priority_t p;

	mutex_init(&vq->vq_lock, NULL, MUTEX_DEFAULT, NULL);
	vq->vq_vdev = vd;
	taskq_init_ent(&vd->vdev_queue.vq_io_search.io_tqent);

	avl_create(&vq->vq_active_tree, vdev_queue_offset_compare,
	sizeof (zio_t), offsetof(struct zio, io_queue_node));
	avl_create(vdev_queue_type_tree(vq, ZIO_TYPE_READ),
	vdev_queue_offset_compare, sizeof (zio_t),
	offsetof(struct zio, io_offset_node));
	avl_create(vdev_queue_type_tree(vq, ZIO_TYPE_WRITE),
	vdev_queue_offset_compare, sizeof (zio_t),
	offsetof(struct zio, io_offset_node));
	avl_create(vdev_queue_type_tree(vq, ZIO_TYPE_TRIM),
	vdev_queue_offset_compare, sizeof (zio_t),
	offsetof(struct zio, io_offset_node));

	for (p = 0; p < ZIO_PRIORITY_NUM_QUEUEABLE; p++) {
	int (compfn) (const void , const void *);

	/*
	* The synchronous/trim i/o queues are dispatched in FIFO rather
	* than LBA order. This provides more consistent latency for
	* these i/os.
	*/
	if (p == ZIO_PRIORITY_SYNC_READ \|\|
	p == ZIO_PRIORITY_SYNC_WRITE \|\|
	p == ZIO_PRIORITY_TRIM) {
	compfn = vdev_queue_timestamp_compare;
	} else {
	compfn = vdev_queue_offset_compare;
	}
	avl_create(vdev_queue_class_tree(vq, p), compfn,
	sizeof (zio_t), offsetof(struct zio, io_queue_node));
	}

	vq->vq_last_offset = 0;
	}

	void
	vdev_queue_fini(vdev_t *vd)
	{
	vdev_queue_t *vq = &vd->vdev_queue;

	for (zio_priority_t p = 0; p < ZIO_PRIORITY_NUM_QUEUEABLE; p++)
	avl_destroy(vdev_queue_class_tree(vq, p));
	avl_destroy(&vq->vq_active_tree);
	avl_destroy(vdev_queue_type_tree(vq, ZIO_TYPE_READ));
	avl_destroy(vdev_queue_type_tree(vq, ZIO_TYPE_WRITE));
	avl_destroy(vdev_queue_type_tree(vq, ZIO_TYPE_TRIM));

	mutex_destroy(&vq->vq_lock);
	}

	static void
	vdev_queue_io_add(vdev_queue_t vq, zio_t zio)
	{
	- spa_t *spa = zio->io_spa;
	- spa_history_kstat_t *shk = &spa->spa_stats.io_history;
	-
	ASSERT3U(zio->io_priority, <, ZIO_PRIORITY_NUM_QUEUEABLE);
	avl_add(vdev_queue_class_tree(vq, zio->io_priority), zio);
	avl_add(vdev_queue_type_tree(vq, zio->io_type), zio);
	-
	- if (shk->kstat != NULL) {
	- mutex_enter(&shk->lock);
	- kstat_waitq_enter(shk->kstat->ks_data);
	- mutex_exit(&shk->lock);
	- }
	}

	static void
	vdev_queue_io_remove(vdev_queue_t vq, zio_t zio)
	{
	- spa_t *spa = zio->io_spa;
	- spa_history_kstat_t *shk = &spa->spa_stats.io_history;
	-
	ASSERT3U(zio->io_priority, <, ZIO_PRIORITY_NUM_QUEUEABLE);
	avl_remove(vdev_queue_class_tree(vq, zio->io_priority), zio);
	avl_remove(vdev_queue_type_tree(vq, zio->io_type), zio);
	-
	- if (shk->kstat != NULL) {
	- mutex_enter(&shk->lock);
	- kstat_waitq_exit(shk->kstat->ks_data);
	- mutex_exit(&shk->lock);
	- }
	}

	static boolean_t
	vdev_queue_is_interactive(zio_priority_t p)
	{
	switch (p) {
	case ZIO_PRIORITY_SCRUB:
	case ZIO_PRIORITY_REMOVAL:
	case ZIO_PRIORITY_INITIALIZING:
	case ZIO_PRIORITY_REBUILD:
	return (B_FALSE);
	default:
	return (B_TRUE);
	}
	}

	static void
	vdev_queue_pending_add(vdev_queue_t vq, zio_t zio)
	{
	- spa_t *spa = zio->io_spa;
	- spa_history_kstat_t *shk = &spa->spa_stats.io_history;
	-
	ASSERT(MUTEX_HELD(&vq->vq_lock));
	ASSERT3U(zio->io_priority, <, ZIO_PRIORITY_NUM_QUEUEABLE);
	vq->vq_class[zio->io_priority].vqc_active++;
	if (vdev_queue_is_interactive(zio->io_priority)) {
	if (++vq->vq_ia_active == 1)
	vq->vq_nia_credit = 1;
	} else if (vq->vq_ia_active > 0) {
	vq->vq_nia_credit--;
	}
	avl_add(&vq->vq_active_tree, zio);
	-
	- if (shk->kstat != NULL) {
	- mutex_enter(&shk->lock);
	- kstat_runq_enter(shk->kstat->ks_data);
	- mutex_exit(&shk->lock);
	- }
	}

	static void
	vdev_queue_pending_remove(vdev_queue_t vq, zio_t zio)
	{
	- spa_t *spa = zio->io_spa;
	- spa_history_kstat_t *shk = &spa->spa_stats.io_history;
	-
	ASSERT(MUTEX_HELD(&vq->vq_lock));
	ASSERT3U(zio->io_priority, <, ZIO_PRIORITY_NUM_QUEUEABLE);
	vq->vq_class[zio->io_priority].vqc_active--;
	if (vdev_queue_is_interactive(zio->io_priority)) {
	if (--vq->vq_ia_active == 0)
	vq->vq_nia_credit = 0;
	else
	vq->vq_nia_credit = zfs_vdev_nia_credit;
	} else if (vq->vq_ia_active == 0)
	vq->vq_nia_credit++;
	avl_remove(&vq->vq_active_tree, zio);
	-
	- if (shk->kstat != NULL) {
	- kstat_io_t *ksio = shk->kstat->ks_data;
	-
	- mutex_enter(&shk->lock);
	- kstat_runq_exit(ksio);
	- if (zio->io_type == ZIO_TYPE_READ) {
	- ksio->reads++;
	- ksio->nread += zio->io_size;
	- } else if (zio->io_type == ZIO_TYPE_WRITE) {
	- ksio->writes++;
	- ksio->nwritten += zio->io_size;
	- }
	- mutex_exit(&shk->lock);
	- }
	}

	static void
	vdev_queue_agg_io_done(zio_t *aio)
	{
	abd_free(aio->io_abd);
	}

	/*
	* Compute the range spanned by two i/os, which is the endpoint of the last
	* (lio->io_offset + lio->io_size) minus start of the first (fio->io_offset).
	* Conveniently, the gap between fio and lio is given by -IO_SPAN(lio, fio);
	* thus fio and lio are adjacent if and only if IO_SPAN(lio, fio) == 0.
	*/
	#define IO_SPAN(fio, lio) ((lio)->io_offset + (lio)->io_size - (fio)->io_offset)
	#define IO_GAP(fio, lio) (-IO_SPAN(lio, fio))

	/*
	* Sufficiently adjacent io_offset's in ZIOs will be aggregated. We do this
	* by creating a gang ABD from the adjacent ZIOs io_abd's. By using
	* a gang ABD we avoid doing memory copies to and from the parent,
	* child ZIOs. The gang ABD also accounts for gaps between adjacent
	* io_offsets by simply getting the zero ABD for writes or allocating
	* a new ABD for reads and placing them in the gang ABD as well.
	*/
	static zio_t *
	vdev_queue_aggregate(vdev_queue_t vq, zio_t zio)
	{
	zio_t first, last, aio, dio, mandatory, nio;
	zio_link_t *zl = NULL;
	uint64_t maxgap = 0;
	uint64_t size;
	uint64_t limit;
	int maxblocksize;
	boolean_t stretch = B_FALSE;
	avl_tree_t *t = vdev_queue_type_tree(vq, zio->io_type);
	enum zio_flag flags = zio->io_flags & ZIO_FLAG_AGG_INHERIT;
	uint64_t next_offset;
	abd_t *abd;

	maxblocksize = spa_maxblocksize(vq->vq_vdev->vdev_spa);
	if (vq->vq_vdev->vdev_nonrot)
	limit = zfs_vdev_aggregation_limit_non_rotating;
	else
	limit = zfs_vdev_aggregation_limit;
	limit = MAX(MIN(limit, maxblocksize), 0);

	if (zio->io_flags & ZIO_FLAG_DONT_AGGREGATE \|\| limit == 0)
	return (NULL);

	/*
	* While TRIM commands could be aggregated based on offset this
	* behavior is disabled until it's determined to be beneficial.
	*/
	if (zio->io_type == ZIO_TYPE_TRIM && !zfs_vdev_aggregate_trim)
	return (NULL);

	/*
	* I/Os to distributed spares are directly dispatched to the dRAID
	* leaf vdevs for aggregation. See the comment at the end of the
	* zio_vdev_io_start() function.
	*/
	ASSERT(vq->vq_vdev->vdev_ops != &vdev_draid_spare_ops);

	first = last = zio;

	if (zio->io_type == ZIO_TYPE_READ)
	maxgap = zfs_vdev_read_gap_limit;

	/*
	* We can aggregate I/Os that are sufficiently adjacent and of
	* the same flavor, as expressed by the AGG_INHERIT flags.
	* The latter requirement is necessary so that certain
	* attributes of the I/O, such as whether it's a normal I/O
	* or a scrub/resilver, can be preserved in the aggregate.
	* We can include optional I/Os, but don't allow them
	* to begin a range as they add no benefit in that situation.
	*/

	/*
	* We keep track of the last non-optional I/O.
	*/
	mandatory = (first->io_flags & ZIO_FLAG_OPTIONAL) ? NULL : first;

	/*
	* Walk backwards through sufficiently contiguous I/Os
	* recording the last non-optional I/O.
	*/
	while ((dio = AVL_PREV(t, first)) != NULL &&
	(dio->io_flags & ZIO_FLAG_AGG_INHERIT) == flags &&
	IO_SPAN(dio, last) <= limit &&
	IO_GAP(dio, first) <= maxgap &&
	dio->io_type == zio->io_type) {
	first = dio;
	if (mandatory == NULL && !(first->io_flags & ZIO_FLAG_OPTIONAL))
	mandatory = first;
	}

	/*
	* Skip any initial optional I/Os.
	*/
	while ((first->io_flags & ZIO_FLAG_OPTIONAL) && first != last) {
	first = AVL_NEXT(t, first);
	ASSERT(first != NULL);
	}


	/*
	* Walk forward through sufficiently contiguous I/Os.
	* The aggregation limit does not apply to optional i/os, so that
	* we can issue contiguous writes even if they are larger than the
	* aggregation limit.
	*/
	while ((dio = AVL_NEXT(t, last)) != NULL &&
	(dio->io_flags & ZIO_FLAG_AGG_INHERIT) == flags &&
	(IO_SPAN(first, dio) <= limit \|\|
	(dio->io_flags & ZIO_FLAG_OPTIONAL)) &&
	IO_SPAN(first, dio) <= maxblocksize &&
	IO_GAP(last, dio) <= maxgap &&
	dio->io_type == zio->io_type) {
	last = dio;
	if (!(last->io_flags & ZIO_FLAG_OPTIONAL))
	mandatory = last;
	}

	/*
	* Now that we've established the range of the I/O aggregation
	* we must decide what to do with trailing optional I/Os.
	* For reads, there's nothing to do. While we are unable to
	* aggregate further, it's possible that a trailing optional
	* I/O would allow the underlying device to aggregate with
	* subsequent I/Os. We must therefore determine if the next
	* non-optional I/O is close enough to make aggregation
	* worthwhile.
	*/
	if (zio->io_type == ZIO_TYPE_WRITE && mandatory != NULL) {
	zio_t *nio = last;
	while ((dio = AVL_NEXT(t, nio)) != NULL &&
	IO_GAP(nio, dio) == 0 &&
	IO_GAP(mandatory, dio) <= zfs_vdev_write_gap_limit) {
	nio = dio;
	if (!(nio->io_flags & ZIO_FLAG_OPTIONAL)) {
	stretch = B_TRUE;
	break;
	}
	}
	}

	if (stretch) {
	/*
	* We are going to include an optional io in our aggregated
	* span, thus closing the write gap. Only mandatory i/os can
	* start aggregated spans, so make sure that the next i/o
	* after our span is mandatory.
	*/
	dio = AVL_NEXT(t, last);
	dio->io_flags &= ~ZIO_FLAG_OPTIONAL;
	} else {
	/* do not include the optional i/o */
	while (last != mandatory && last != first) {
	ASSERT(last->io_flags & ZIO_FLAG_OPTIONAL);
	last = AVL_PREV(t, last);
	ASSERT(last != NULL);
	}
	}

	if (first == last)
	return (NULL);

	size = IO_SPAN(first, last);
	ASSERT3U(size, <=, maxblocksize);

	abd = abd_alloc_gang();
	if (abd == NULL)
	return (NULL);

	aio = zio_vdev_delegated_io(first->io_vd, first->io_offset,
	abd, size, first->io_type, zio->io_priority,
	flags \| ZIO_FLAG_DONT_CACHE \| ZIO_FLAG_DONT_QUEUE,
	vdev_queue_agg_io_done, NULL);
	aio->io_timestamp = first->io_timestamp;

	nio = first;
	next_offset = first->io_offset;
	do {
	dio = nio;
	nio = AVL_NEXT(t, dio);
	zio_add_child(dio, aio);
	vdev_queue_io_remove(vq, dio);

	if (dio->io_offset != next_offset) {
	/* allocate a buffer for a read gap */
	ASSERT3U(dio->io_type, ==, ZIO_TYPE_READ);
	ASSERT3U(dio->io_offset, >, next_offset);
	abd = abd_alloc_for_io(
	dio->io_offset - next_offset, B_TRUE);
	abd_gang_add(aio->io_abd, abd, B_TRUE);
	}
	if (dio->io_abd &&
	(dio->io_size != abd_get_size(dio->io_abd))) {
	/* abd size not the same as IO size */
	ASSERT3U(abd_get_size(dio->io_abd), >, dio->io_size);
	abd = abd_get_offset_size(dio->io_abd, 0, dio->io_size);
	abd_gang_add(aio->io_abd, abd, B_TRUE);
	} else {
	if (dio->io_flags & ZIO_FLAG_NODATA) {
	/* allocate a buffer for a write gap */
	ASSERT3U(dio->io_type, ==, ZIO_TYPE_WRITE);
	ASSERT3P(dio->io_abd, ==, NULL);
	abd_gang_add(aio->io_abd,
	abd_get_zeros(dio->io_size), B_TRUE);
	} else {
	/*
	* We pass B_FALSE to abd_gang_add()
	* because we did not allocate a new
	* ABD, so it is assumed the caller
	* will free this ABD.
	*/
	abd_gang_add(aio->io_abd, dio->io_abd,
	B_FALSE);
	}
	}
	next_offset = dio->io_offset + dio->io_size;
	} while (dio != last);
	ASSERT3U(abd_get_size(aio->io_abd), ==, aio->io_size);

	/*
	* We need to drop the vdev queue's lock during zio_execute() to
	* avoid a deadlock that we could encounter due to lock order
	* reversal between vq_lock and io_lock in zio_change_priority().
	*/
	mutex_exit(&vq->vq_lock);
	while ((dio = zio_walk_parents(aio, &zl)) != NULL) {
	ASSERT3U(dio->io_type, ==, aio->io_type);

	zio_vdev_io_bypass(dio);
	zio_execute(dio);
	}
	mutex_enter(&vq->vq_lock);

	return (aio);
	}

	static zio_t *
	vdev_queue_io_to_issue(vdev_queue_t *vq)
	{
	zio_t zio, aio;
	zio_priority_t p;
	avl_index_t idx;
	avl_tree_t *tree;

	again:
	ASSERT(MUTEX_HELD(&vq->vq_lock));

	p = vdev_queue_class_to_issue(vq);

	if (p == ZIO_PRIORITY_NUM_QUEUEABLE) {
	/* No eligible queued i/os */
	return (NULL);
	}

	/*
	* For LBA-ordered queues (async / scrub / initializing), issue the
	* i/o which follows the most recently issued i/o in LBA (offset) order.
	*
	* For FIFO queues (sync/trim), issue the i/o with the lowest timestamp.
	*/
	tree = vdev_queue_class_tree(vq, p);
	vq->vq_io_search.io_timestamp = 0;
	vq->vq_io_search.io_offset = vq->vq_last_offset - 1;
	VERIFY3P(avl_find(tree, &vq->vq_io_search, &idx), ==, NULL);
	zio = avl_nearest(tree, idx, AVL_AFTER);
	if (zio == NULL)
	zio = avl_first(tree);
	ASSERT3U(zio->io_priority, ==, p);

	aio = vdev_queue_aggregate(vq, zio);
	if (aio != NULL)
	zio = aio;
	else
	vdev_queue_io_remove(vq, zio);

	/*
	* If the I/O is or was optional and therefore has no data, we need to
	* simply discard it. We need to drop the vdev queue's lock to avoid a
	* deadlock that we could encounter since this I/O will complete
	* immediately.
	*/
	if (zio->io_flags & ZIO_FLAG_NODATA) {
	mutex_exit(&vq->vq_lock);
	zio_vdev_io_bypass(zio);
	zio_execute(zio);
	mutex_enter(&vq->vq_lock);
	goto again;
	}

	vdev_queue_pending_add(vq, zio);
	vq->vq_last_offset = zio->io_offset + zio->io_size;

	return (zio);
	}

	zio_t *
	vdev_queue_io(zio_t *zio)
	{
	vdev_queue_t *vq = &zio->io_vd->vdev_queue;
	zio_t *nio;

	if (zio->io_flags & ZIO_FLAG_DONT_QUEUE)
	return (zio);

	/*
	* Children i/os inherent their parent's priority, which might
	* not match the child's i/o type. Fix it up here.
	*/
	if (zio->io_type == ZIO_TYPE_READ) {
	ASSERT(zio->io_priority != ZIO_PRIORITY_TRIM);

	if (zio->io_priority != ZIO_PRIORITY_SYNC_READ &&
	zio->io_priority != ZIO_PRIORITY_ASYNC_READ &&
	zio->io_priority != ZIO_PRIORITY_SCRUB &&
	zio->io_priority != ZIO_PRIORITY_REMOVAL &&
	zio->io_priority != ZIO_PRIORITY_INITIALIZING &&
	zio->io_priority != ZIO_PRIORITY_REBUILD) {
	zio->io_priority = ZIO_PRIORITY_ASYNC_READ;
	}
	} else if (zio->io_type == ZIO_TYPE_WRITE) {
	ASSERT(zio->io_priority != ZIO_PRIORITY_TRIM);

	if (zio->io_priority != ZIO_PRIORITY_SYNC_WRITE &&
	zio->io_priority != ZIO_PRIORITY_ASYNC_WRITE &&
	zio->io_priority != ZIO_PRIORITY_REMOVAL &&
	zio->io_priority != ZIO_PRIORITY_INITIALIZING &&
	zio->io_priority != ZIO_PRIORITY_REBUILD) {
	zio->io_priority = ZIO_PRIORITY_ASYNC_WRITE;
	}
	} else {
	ASSERT(zio->io_type == ZIO_TYPE_TRIM);
	ASSERT(zio->io_priority == ZIO_PRIORITY_TRIM);
	}

	zio->io_flags \|= ZIO_FLAG_DONT_CACHE \| ZIO_FLAG_DONT_QUEUE;

	mutex_enter(&vq->vq_lock);
	zio->io_timestamp = gethrtime();
	vdev_queue_io_add(vq, zio);
	nio = vdev_queue_io_to_issue(vq);
	mutex_exit(&vq->vq_lock);

	if (nio == NULL)
	return (NULL);

	if (nio->io_done == vdev_queue_agg_io_done) {
	zio_nowait(nio);
	return (NULL);
	}

	return (nio);
	}

	void
	vdev_queue_io_done(zio_t *zio)
	{
	vdev_queue_t *vq = &zio->io_vd->vdev_queue;
	zio_t *nio;

	mutex_enter(&vq->vq_lock);

	vdev_queue_pending_remove(vq, zio);

	zio->io_delta = gethrtime() - zio->io_timestamp;
	vq->vq_io_complete_ts = gethrtime();
	vq->vq_io_delta_ts = vq->vq_io_complete_ts - zio->io_timestamp;

	while ((nio = vdev_queue_io_to_issue(vq)) != NULL) {
	mutex_exit(&vq->vq_lock);
	if (nio->io_done == vdev_queue_agg_io_done) {
	zio_nowait(nio);
	} else {
	zio_vdev_io_reissue(nio);
	zio_execute(nio);
	}
	mutex_enter(&vq->vq_lock);
	}

	mutex_exit(&vq->vq_lock);
	}

	void
	vdev_queue_change_io_priority(zio_t *zio, zio_priority_t priority)
	{
	vdev_queue_t *vq = &zio->io_vd->vdev_queue;
	avl_tree_t *tree;

	/*
	* ZIO_PRIORITY_NOW is used by the vdev cache code and the aggregate zio
	* code to issue IOs without adding them to the vdev queue. In this
	* case, the zio is already going to be issued as quickly as possible
	* and so it doesn't need any reprioritization to help.
	*/
	if (zio->io_priority == ZIO_PRIORITY_NOW)
	return;

	ASSERT3U(zio->io_priority, <, ZIO_PRIORITY_NUM_QUEUEABLE);
	ASSERT3U(priority, <, ZIO_PRIORITY_NUM_QUEUEABLE);

	if (zio->io_type == ZIO_TYPE_READ) {
	if (priority != ZIO_PRIORITY_SYNC_READ &&
	priority != ZIO_PRIORITY_ASYNC_READ &&
	priority != ZIO_PRIORITY_SCRUB)
	priority = ZIO_PRIORITY_ASYNC_READ;
	} else {
	ASSERT(zio->io_type == ZIO_TYPE_WRITE);
	if (priority != ZIO_PRIORITY_SYNC_WRITE &&
	priority != ZIO_PRIORITY_ASYNC_WRITE)
	priority = ZIO_PRIORITY_ASYNC_WRITE;
	}

	mutex_enter(&vq->vq_lock);

	/*
	* If the zio is in none of the queues we can simply change
	* the priority. If the zio is waiting to be submitted we must
	* remove it from the queue and re-insert it with the new priority.
	* Otherwise, the zio is currently active and we cannot change its
	* priority.
	*/
	tree = vdev_queue_class_tree(vq, zio->io_priority);
	if (avl_find(tree, zio, NULL) == zio) {
	avl_remove(vdev_queue_class_tree(vq, zio->io_priority), zio);
	zio->io_priority = priority;
	avl_add(vdev_queue_class_tree(vq, zio->io_priority), zio);
	} else if (avl_find(&vq->vq_active_tree, zio, NULL) != zio) {
	zio->io_priority = priority;
	}

	mutex_exit(&vq->vq_lock);
	}

	/*
	* As these two methods are only used for load calculations we're not
	* concerned if we get an incorrect value on 32bit platforms due to lack of
	* vq_lock mutex use here, instead we prefer to keep it lock free for
	* performance.
	*/
	int
	vdev_queue_length(vdev_t *vd)
	{
	return (avl_numnodes(&vd->vdev_queue.vq_active_tree));
	}

	uint64_t
	vdev_queue_last_offset(vdev_t *vd)
	{
	return (vd->vdev_queue.vq_last_offset);
	}

	/* BEGIN CSTYLED */
	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, aggregation_limit, INT, ZMOD_RW,
	"Max vdev I/O aggregation size");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, aggregation_limit_non_rotating, INT, ZMOD_RW,
	"Max vdev I/O aggregation size for non-rotating media");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, aggregate_trim, INT, ZMOD_RW,
	"Allow TRIM I/O to be aggregated");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, read_gap_limit, INT, ZMOD_RW,
	"Aggregate read I/O over gap");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, write_gap_limit, INT, ZMOD_RW,
	"Aggregate write I/O over gap");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, max_active, INT, ZMOD_RW,
	"Maximum number of active I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, async_write_active_max_dirty_percent, INT, ZMOD_RW,
	"Async write concurrency max threshold");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, async_write_active_min_dirty_percent, INT, ZMOD_RW,
	"Async write concurrency min threshold");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, async_read_max_active, INT, ZMOD_RW,
	"Max active async read I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, async_read_min_active, INT, ZMOD_RW,
	"Min active async read I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, async_write_max_active, INT, ZMOD_RW,
	"Max active async write I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, async_write_min_active, INT, ZMOD_RW,
	"Min active async write I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, initializing_max_active, INT, ZMOD_RW,
	"Max active initializing I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, initializing_min_active, INT, ZMOD_RW,
	"Min active initializing I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, removal_max_active, INT, ZMOD_RW,
	"Max active removal I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, removal_min_active, INT, ZMOD_RW,
	"Min active removal I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, scrub_max_active, INT, ZMOD_RW,
	"Max active scrub I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, scrub_min_active, INT, ZMOD_RW,
	"Min active scrub I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, sync_read_max_active, INT, ZMOD_RW,
	"Max active sync read I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, sync_read_min_active, INT, ZMOD_RW,
	"Min active sync read I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, sync_write_max_active, INT, ZMOD_RW,
	"Max active sync write I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, sync_write_min_active, INT, ZMOD_RW,
	"Min active sync write I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, trim_max_active, INT, ZMOD_RW,
	"Max active trim/discard I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, trim_min_active, INT, ZMOD_RW,
	"Min active trim/discard I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, rebuild_max_active, INT, ZMOD_RW,
	"Max active rebuild I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, rebuild_min_active, INT, ZMOD_RW,
	"Min active rebuild I/Os per vdev");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, nia_credit, INT, ZMOD_RW,
	"Number of non-interactive I/Os to allow in sequence");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, nia_delay, INT, ZMOD_RW,
	"Number of non-interactive I/Os before _max_active");

	ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, queue_depth_pct, INT, ZMOD_RW,
	"Queue depth percentage for each top-level vdev");
	/* END CSTYLED */
	diff --git a/sys/contrib/openzfs/rpm/generic/zfs-dkms.spec.in b/sys/contrib/openzfs/rpm/generic/zfs-dkms.spec.in
	index 0a6935516c6e..e0c410c680c2 100644
	--- a/sys/contrib/openzfs/rpm/generic/zfs-dkms.spec.in
	+++ b/sys/contrib/openzfs/rpm/generic/zfs-dkms.spec.in
	@@ -1,102 +1,109 @@
	%{?!packager: %define packager Brian Behlendorf <behlendorf1@llnl.gov>}

	%if ! 0%{?rhel}%{?fedora}%{?mageia}%{?suse_version}
	%define not_rpm 1
	%endif

	# Exclude input files from mangling
	%global __brp_mangle_shebangs_exclude_from ^/usr/src/.*$

	%define module @PACKAGE@
	%define mkconf scripts/dkms.mkconf

	Name: %{module}-dkms

	Version: @VERSION@
	Release: @RELEASE@%{?dist}
	Summary: Kernel module(s) (dkms)

	Group: System Environment/Kernel
	License: @ZFS_META_LICENSE@
	URL: https://github.com/openzfs/zfs
	Source0: %{module}-%{version}.tar.gz
	BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
	BuildArch: noarch

	Requires: dkms >= 2.2.0.3
	Requires: gcc, make, perl, diffutils
	%if 0%{?rhel}%{?fedora}%{?mageia}%{?suse_version}
	Requires: kernel-devel >= @ZFS_META_KVER_MIN@, kernel-devel <= @ZFS_META_KVER_MAX@.999
	Obsoletes: spl-dkms
	%endif
	Provides: %{module}-kmod = %{version}
	AutoReqProv: no

	+%if 0%{?rhel}%{?fedora}%{?suse_version}
	+# We don't directly use it, but if this isn't installed, rpmbuild as root can
	+# crash+corrupt rpmdb
	+# See issue #12071
	+BuildRequires: ncompress
	+%endif
	+
	%description
	This package contains the dkms ZFS kernel modules.

	%prep
	%setup -q -n %{module}-%{version}

	%build
	%{mkconf} -n %{module} -v %{version} -f dkms.conf

	%install
	if [ "$RPM_BUILD_ROOT" != "/" ]; then
	rm -rf $RPM_BUILD_ROOT
	fi
	mkdir -p $RPM_BUILD_ROOT/usr/src/
	cp -rf ${RPM_BUILD_DIR}/%{module}-%{version} $RPM_BUILD_ROOT/usr/src/

	%clean
	if [ "$RPM_BUILD_ROOT" != "/" ]; then
	rm -rf $RPM_BUILD_ROOT
	fi

	%files
	%defattr(-,root,root)
	/usr/src/%{module}-%{version}

	%post
	for POSTINST in /usr/lib/dkms/common.postinst; do
	if [ -f $POSTINST ]; then
	$POSTINST %{module} %{version}
	exit $?
	fi
	echo "WARNING: $POSTINST does not exist."
	done
	echo -e "ERROR: DKMS version is too old and %{module} was not"
	echo -e "built with legacy DKMS support."
	echo -e "You must either rebuild %{module} with legacy postinst"
	echo -e "support or upgrade DKMS to a more current version."
	exit 1

	%preun
	# Are we doing an upgrade?
	if [ "$1" = "1" -o "$1" = "upgrade" ] ; then
	# Yes we are. Are we upgrading to a new ZFS version?
	NEWEST_VER=$(dkms status zfs \| sed 's/,//g' \| sort -r -V \| awk '/installed/{print $2; exit}')
	if [ "$NEWEST_VER" != "%{version}" ] ; then
	# Yes, it's a new ZFS version. We'll uninstall the old module
	# later on in this script.
	true
	else
	# No, it's probably an upgrade of the same ZFS version
	# to a new distro (zfs-dkms-0.7.12.fc28->zfs-dkms-0.7.12.fc29).
	# Don't remove our modules, since the rebuild for the new
	# distro will automatically delete the old modules.
	exit 0
	fi
	fi

	# If we're here then we're doing an uninstall (not upgrade).
	CONFIG_H="/var/lib/dkms/%{module}/%{version}///%{module}_config.h"
	SPEC_META_ALIAS="@PACKAGE@-@VERSION@-@RELEASE@"
	DKMS_META_ALIAS=`cat $CONFIG_H 2>/dev/null \|
	awk -F'"' '/META_ALIAS\s+"/ { print $2; exit 0 }'`
	if [ "$SPEC_META_ALIAS" = "$DKMS_META_ALIAS" ]; then
	echo -e
	echo -e "Uninstall of %{module} module ($SPEC_META_ALIAS) beginning:"
	dkms remove -m %{module} -v %{version} --all %{!?not_rpm:--rpm_safe_upgrade}
	fi
	exit 0
	diff --git a/sys/contrib/openzfs/rpm/generic/zfs-kmod.spec.in b/sys/contrib/openzfs/rpm/generic/zfs-kmod.spec.in
	index 6e4bfdcfedc0..1692be1a72e6 100644
	--- a/sys/contrib/openzfs/rpm/generic/zfs-kmod.spec.in
	+++ b/sys/contrib/openzfs/rpm/generic/zfs-kmod.spec.in
	@@ -1,160 +1,167 @@
	%define module @PACKAGE@

	%if !%{defined ksrc}
	%if 0%{?rhel}%{?fedora}
	%define ksrc ${kernel_version##*___}
	%else
	%define ksrc "$( \
	if [ -e "/usr/src/linux-${kernel_version%%___*}" ]; then \
	echo "/usr/src/linux-${kernel_version%%___*}"; \
	elif [ -e "/lib/modules/${kernel_version%%___*}/source" ]; then \
	echo "/lib/modules/${kernel_version%%___*}/source"; \
	else \
	echo "/lib/modules/${kernel_version%%___*}/build"; \
	fi)"
	%endif
	%endif

	%if !%{defined kobj}
	%if 0%{?rhel}%{?fedora}
	%define kobj ${kernel_version##*___}
	%else
	%define kobj "$( \
	if [ -e "/usr/src/linux-${kernel_version%%___*}" ]; then \
	echo "/usr/src/linux-${kernel_version%%___*}"; \
	else \
	echo "/lib/modules/${kernel_version%%___*}/build"; \
	fi)"
	%endif
	%endif

	#define repo rpmfusion
	#define repo chaos

	# (un)define the next line to either build for the newest or all current kernels
	%define buildforkernels newest
	#define buildforkernels current
	#define buildforkernels akmod

	%bcond_with debug
	%bcond_with debuginfo


	Name: %{module}-kmod

	Version: @VERSION@
	Release: @RELEASE@%{?dist}
	Summary: Kernel module(s)

	Group: System Environment/Kernel
	License: @ZFS_META_LICENSE@
	URL: https://github.com/openzfs/zfs
	Source0: %{module}-%{version}.tar.gz
	Source10: kmodtool
	BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id} -u -n)
	%if 0%{?rhel}%{?fedora}
	BuildRequires: gcc, make
	BuildRequires: elfutils-libelf-devel
	%endif

	+%if 0%{?rhel}%{?fedora}%{?suse_version}
	+# We don't directly use it, but if this isn't installed, rpmbuild as root can
	+# crash+corrupt rpmdb
	+# See issue #12071
	+BuildRequires: ncompress
	+%endif
	+
	# The developments headers will conflict with the dkms packages.
	Conflicts: %{module}-dkms

	%if %{defined repo}

	# Building for a repository use the proper build-sysbuild package
	# to determine which kernel-devel packages should be installed.
	BuildRequires: %{_bindir}/kmodtool
	%{!?kernels:BuildRequires: buildsys-build-%{repo}-kerneldevpkgs-%{?buildforkernels:%{buildforkernels}}%{!?buildforkernels:current}-%{_target_cpu}}

	%else

	# Building local packages attempt to to use the installed kernel.
	%{?rhel:BuildRequires: kernel-devel}
	%{?fedora:BuildRequires: kernel-devel}
	%{?suse_version:BuildRequires: kernel-source}

	%if !%{defined kernels} && !%{defined build_src_rpm}
	%if 0%{?rhel}%{?fedora}%{?suse_version}
	%define kernels %(ls -1 /usr/src/kernels)
	%else
	%define kernels %(ls -1 /lib/modules)
	%endif
	%endif
	%endif

	# LDFLAGS are not sanitized by arch/*/Makefile for these architectures.
	%ifarch ppc ppc64 ppc64le aarch64
	%global __global_ldflags %{nil}
	%endif

	# Kmodtool does its magic here. A patched version of kmodtool is shipped
	# with the source rpm until kmod development packages are supported upstream.
	# https://bugzilla.rpmfusion.org/show_bug.cgi?id=2714
	%{expand:%(bash %{SOURCE10} --target %{_target_cpu} %{?repo:--repo %{?repo}} --kmodname %{name} %{?buildforkernels:--%{buildforkernels}} --devel %{?prefix:--prefix "%{?prefix}"} %{?kernels:--for-kernels "%{?kernels}"} %{?kernelbuildroot:--buildroot "%{?kernelbuildroot}"} --obsolete-name spl --obsolete-version 0.8 2>/dev/null) }


	%description
	This package contains the ZFS kernel modules.

	%prep
	# Error out if there was something wrong with kmodtool.
	%{?kmodtool_check}

	# Print kmodtool output for debugging purposes:
	bash %{SOURCE10} --target %{_target_cpu} %{?repo:--repo %{?repo}} --kmodname %{name} %{?buildforkernels:--%{buildforkernels}} --devel %{?prefix:--prefix "%{?prefix}"} %{?kernels:--for-kernels "%{?kernels}"} %{?kernelbuildroot:--buildroot "%{?kernelbuildroot}"} --obsolete-name spl --obsolete-version 0.8 2>/dev/null

	%if %{with debug}
	%define debug --enable-debug
	%else
	%define debug --disable-debug
	%endif

	%if %{with debuginfo}
	%define debuginfo --enable-debuginfo
	%else
	%define debuginfo --disable-debuginfo
	%endif

	# Leverage VPATH from configure to avoid making multiple copies.
	%define _configure ../%{module}-%{version}/configure

	%setup -q -c -T -a 0

	for kernel_version in %{?kernel_versions}; do
	%{__mkdir} _kmod_build_${kernel_version%%___*}
	done

	%build
	for kernel_version in %{?kernel_versions}; do
	cd _kmod_build_${kernel_version%%___*}
	%configure \
	--with-config=kernel \
	--with-linux=%{ksrc} \
	--with-linux-obj=%{kobj} \
	%{debug} \
	%{debuginfo}
	make %{?_smp_mflags}
	cd ..
	done


	%install
	rm -rf ${RPM_BUILD_ROOT}

	# Relies on the kernel 'modules_install' make target.
	for kernel_version in %{?kernel_versions}; do
	cd _kmod_build_${kernel_version%%___*}
	make install \
	DESTDIR=${RPM_BUILD_ROOT} \
	%{?prefix:INSTALL_MOD_PATH=%{?prefix}} \
	INSTALL_MOD_DIR=%{kmodinstdir_postfix}
	cd ..
	done
	# find-debuginfo.sh only considers executables
	chmod u+x ${RPM_BUILD_ROOT}%{kmodinstdir_prefix}//extra///
	%{?akmod_install}


	%clean
	rm -rf $RPM_BUILD_ROOT
	diff --git a/sys/contrib/openzfs/rpm/generic/zfs.spec.in b/sys/contrib/openzfs/rpm/generic/zfs.spec.in
	index b1750942f53f..4a37ae8ce1d5 100644
	--- a/sys/contrib/openzfs/rpm/generic/zfs.spec.in
	+++ b/sys/contrib/openzfs/rpm/generic/zfs.spec.in
	@@ -1,555 +1,567 @@
	%global _sbindir /sbin
	%global _libdir /%{_lib}

	# Set the default udev directory based on distribution.
	%if %{undefined _udevdir}
	%if 0%{?fedora} >= 17 \|\| 0%{?rhel} >= 7 \|\| 0%{?centos} >= 7
	%global _udevdir %{_prefix}/lib/udev
	%else
	%global _udevdir /lib/udev
	%endif
	%endif

	# Set the default udevrule directory based on distribution.
	%if %{undefined _udevruledir}
	%if 0%{?fedora} >= 17 \|\| 0%{?rhel} >= 7 \|\| 0%{?centos} >= 7
	%global _udevruledir %{_prefix}/lib/udev/rules.d
	%else
	%global _udevruledir /lib/udev/rules.d
	%endif
	%endif

	# Set the default dracut directory based on distribution.
	%if %{undefined _dracutdir}
	%if 0%{?fedora} >= 17 \|\| 0%{?rhel} >= 7 \|\| 0%{?centos} >= 7
	%global _dracutdir %{_prefix}/lib/dracut
	%else
	%global _dracutdir %{_prefix}/share/dracut
	%endif
	%endif

	%if %{undefined _initconfdir}
	%global _initconfdir /etc/sysconfig
	%endif

	%if %{undefined _unitdir}
	%global _unitdir %{_prefix}/lib/systemd/system
	%endif

	%if %{undefined _presetdir}
	%global _presetdir %{_prefix}/lib/systemd/system-preset
	%endif

	%if %{undefined _modulesloaddir}
	%global _modulesloaddir %{_prefix}/lib/modules-load.d
	%endif

	%if %{undefined _systemdgeneratordir}
	%global _systemdgeneratordir %{_prefix}/lib/systemd/system-generators
	%endif

	%if %{undefined _pkgconfigdir}
	%global _pkgconfigdir %{_prefix}/%{_lib}/pkgconfig
	%endif

	%bcond_with debug
	%bcond_with debuginfo
	%bcond_with asan
	%bcond_with systemd
	%bcond_with pam

	# Generic enable switch for systemd
	%if %{with systemd}
	%define _systemd 1
	%endif

	# RHEL >= 7 comes with systemd
	%if 0%{?rhel} >= 7
	%define _systemd 1
	%endif

	# Fedora >= 15 comes with systemd, but only >= 18 has
	# the proper macros
	%if 0%{?fedora} >= 18
	%define _systemd 1
	%endif

	# opensuse >= 12.1 comes with systemd, but only >= 13.1
	# has the proper macros
	%if 0%{?suse_version} >= 1310
	%define _systemd 1
	%endif

	# When not specified default to distribution provided version. This
	# is normally Python 3, but for RHEL <= 7 only Python 2 is provided.
	%if %{undefined __use_python}
	%if 0%{?rhel} && 0%{?rhel} <= 7
	%define __python /usr/bin/python2
	%define __python_pkg_version 2
	%define __python_cffi_pkg python-cffi
	%define __python_setuptools_pkg python-setuptools
	%else
	%define __python /usr/bin/python3
	%define __python_pkg_version 3
	%define __python_cffi_pkg python3-cffi
	%define __python_setuptools_pkg python3-setuptools
	%endif
	%else
	%define __python %{__use_python}
	%define __python_pkg_version %{__use_python_pkg_version}
	%define __python_cffi_pkg python%{__python_pkg_version}-cffi
	%define __python_setuptools_pkg python%{__python_pkg_version}-setuptools
	%endif
	%define __python_sitelib %(%{__python} -Esc "from distutils.sysconfig import get_python_lib; print(get_python_lib())")

	# By default python-pyzfs is enabled, with the exception of
	# RHEL 6 which by default uses Python 2.6 which is too old.
	%if 0%{?rhel} == 6
	%bcond_with pyzfs
	%else
	%bcond_without pyzfs
	%endif

	Name: @PACKAGE@
	Version: @VERSION@
	Release: @RELEASE@%{?dist}
	Summary: Commands to control the kernel modules and libraries

	Group: System Environment/Kernel
	License: @ZFS_META_LICENSE@
	URL: https://github.com/openzfs/zfs
	Source0: %{name}-%{version}.tar.gz
	BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
	Requires: libzpool5 = %{version}
	Requires: libnvpair3 = %{version}
	Requires: libuutil3 = %{version}
	Requires: libzfs5 = %{version}
	Requires: %{name}-kmod = %{version}
	Provides: %{name}-kmod-common = %{version}
	Obsoletes: spl

	# zfs-fuse provides the same commands and man pages that OpenZFS does.
	# Renaming those on either side would conflict with all available documentation.
	Conflicts: zfs-fuse

	%if 0%{?rhel}%{?fedora}%{?suse_version}
	BuildRequires: gcc, make
	BuildRequires: zlib-devel
	BuildRequires: libuuid-devel
	BuildRequires: libblkid-devel
	BuildRequires: libudev-devel
	BuildRequires: libattr-devel
	BuildRequires: openssl-devel
	+# We don't directly use it, but if this isn't installed, rpmbuild as root can
	+# crash+corrupt rpmdb
	+# See issue #12071
	+BuildRequires: ncompress
	%if 0%{?fedora} >= 28 \|\| 0%{?rhel} >= 8 \|\| 0%{?centos} >= 8
	BuildRequires: libtirpc-devel
	%endif
	+
	Requires: openssl
	%if 0%{?_systemd}
	BuildRequires: systemd
	%endif
	%endif

	%if 0%{?_systemd}
	Requires(post): systemd
	Requires(preun): systemd
	Requires(postun): systemd
	%endif

	# The zpool iostat/status -c scripts call some utilities like lsblk and iostat
	Requires: util-linux
	Requires: sysstat

	%description
	This package contains the core ZFS command line utilities.

	%package -n libzpool5
	Summary: Native ZFS pool library for Linux
	Group: System Environment/Kernel
	Obsoletes: libzpool2
	Obsoletes: libzpool4

	%description -n libzpool5
	This package contains the zpool library, which provides support
	for managing zpools

	%if %{defined ldconfig_scriptlets}
	%ldconfig_scriptlets -n libzpool5
	%else
	%post -n libzpool5 -p /sbin/ldconfig
	%postun -n libzpool5 -p /sbin/ldconfig
	%endif

	%package -n libnvpair3
	Summary: Solaris name-value library for Linux
	Group: System Environment/Kernel
	Obsoletes: libnvpair1

	%description -n libnvpair3
	This package contains routines for packing and unpacking name-value
	pairs. This functionality is used to portably transport data across
	process boundaries, between kernel and user space, and can be used
	to write self describing data structures on disk.

	%if %{defined ldconfig_scriptlets}
	%ldconfig_scriptlets -n libnvpair3
	%else
	%post -n libnvpair3 -p /sbin/ldconfig
	%postun -n libnvpair3 -p /sbin/ldconfig
	%endif

	%package -n libuutil3
	Summary: Solaris userland utility library for Linux
	Group: System Environment/Kernel
	Obsoletes: libuutil1

	%description -n libuutil3
	This library provides a variety of compatibility functions for OpenZFS:
	* libspl: The Solaris Porting Layer userland library, which provides APIs
	that make it possible to run Solaris user code in a Linux environment
	with relatively minimal modification.
	* libavl: The Adelson-Velskii Landis balanced binary tree manipulation
	library.
	* libefi: The Extensible Firmware Interface library for GUID disk
	partitioning.
	* libshare: NFS, SMB, and iSCSI service integration for ZFS.

	%if %{defined ldconfig_scriptlets}
	%ldconfig_scriptlets -n libuutil3
	%else
	%post -n libuutil3 -p /sbin/ldconfig
	%postun -n libuutil3 -p /sbin/ldconfig
	%endif

	# The library version is encoded in the package name. When updating the
	# version information it is important to add an obsoletes line below for
	# the previous version of the package.
	%package -n libzfs5
	Summary: Native ZFS filesystem library for Linux
	Group: System Environment/Kernel
	Obsoletes: libzfs2
	Obsoletes: libzfs4

	%description -n libzfs5
	This package provides support for managing ZFS filesystems

	%if %{defined ldconfig_scriptlets}
	%ldconfig_scriptlets -n libzfs5
	%else
	%post -n libzfs5 -p /sbin/ldconfig
	%postun -n libzfs5 -p /sbin/ldconfig
	%endif

	%package -n libzfs5-devel
	Summary: Development headers
	Group: System Environment/Kernel
	Requires: libzfs5 = %{version}
	Requires: libzpool5 = %{version}
	Requires: libnvpair3 = %{version}
	Requires: libuutil3 = %{version}
	Provides: libzpool5-devel
	Provides: libnvpair3-devel
	Provides: libuutil3-devel
	Obsoletes: zfs-devel
	Obsoletes: libzfs2-devel
	Obsoletes: libzfs4-devel

	%description -n libzfs5-devel
	This package contains the header files needed for building additional
	applications against the ZFS libraries.

	%package test
	Summary: Test infrastructure
	Group: System Environment/Kernel
	Requires: %{name}%{?_isa} = %{version}-%{release}
	Requires: parted
	Requires: lsscsi
	Requires: mdadm
	Requires: bc
	Requires: ksh
	Requires: fio
	Requires: acl
	Requires: sudo
	Requires: sysstat
	Requires: libaio
	Requires: python%{__python_pkg_version}
	%if 0%{?rhel}%{?fedora}%{?suse_version}
	BuildRequires: libaio-devel
	%endif
	AutoReqProv: no

	%description test
	This package contains test infrastructure and support scripts for
	validating the file system.

	%package dracut
	Summary: Dracut module
	Group: System Environment/Kernel
	BuildArch: noarch
	Requires: %{name} >= %{version}
	Requires: dracut
	Requires: /usr/bin/awk
	Requires: grep

	%description dracut
	This package contains a dracut module used to construct an initramfs
	image which is ZFS aware.

	%if %{with pyzfs}
	%package -n python%{__python_pkg_version}-pyzfs
	Summary: Python %{python_version} wrapper for libzfs_core
	Group: Development/Languages/Python
	License: Apache-2.0
	BuildArch: noarch
	Requires: libzfs5 = %{version}
	Requires: libnvpair3 = %{version}
	Requires: libffi
	Requires: python%{__python_pkg_version}
	Requires: %{__python_cffi_pkg}
	%if 0%{?rhel}%{?fedora}%{?suse_version}
	+%if 0%{?rhel} >= 8 \|\| 0%{?centos} >= 8 \|\| 0%{?fedora} >= 28
	+BuildRequires: python3-packaging
	+%else
	+BuildRequires: python-packaging
	+%endif
	BuildRequires: python%{__python_pkg_version}-devel
	BuildRequires: %{__python_cffi_pkg}
	BuildRequires: %{__python_setuptools_pkg}
	BuildRequires: libffi-devel
	%endif

	%description -n python%{__python_pkg_version}-pyzfs
	This package provides a python wrapper for the libzfs_core C library.
	%endif

	%if 0%{?_initramfs}
	%package initramfs
	Summary: Initramfs module
	Group: System Environment/Kernel
	Requires: %{name}%{?_isa} = %{version}-%{release}
	Requires: %{name} = %{version}-%{release}
	Requires: initramfs-tools

	%description initramfs
	This package contains a initramfs module used to construct an initramfs
	image which is ZFS aware.
	%endif

	%prep
	%if %{with debug}
	%define debug --enable-debug
	%else
	%define debug --disable-debug
	%endif

	%if %{with debuginfo}
	%define debuginfo --enable-debuginfo
	%else
	%define debuginfo --disable-debuginfo
	%endif

	%if %{with asan}
	%define asan --enable-asan
	%else
	%define asan --disable-asan
	%endif

	%if 0%{?_systemd}
	%define systemd --enable-systemd --with-systemdunitdir=%{_unitdir} --with-systemdpresetdir=%{_presetdir} --with-systemdmodulesloaddir=%{_modulesloaddir} --with-systemdgeneratordir=%{_systemdgeneratordir} --disable-sysvinit
	%define systemd_svcs zfs-import-cache.service zfs-import-scan.service zfs-mount.service zfs-share.service zfs-zed.service zfs.target zfs-import.target zfs-volume-wait.service zfs-volumes.target
	%else
	%define systemd --enable-sysvinit --disable-systemd
	%endif

	%if %{with pyzfs}
	%define pyzfs --enable-pyzfs
	%else
	%define pyzfs --disable-pyzfs
	%endif

	%if %{with pam}
	%define pam --enable-pam
	%else
	%define pam --disable-pam
	%endif

	%setup -q

	%build
	%configure \
	--with-config=user \
	--with-udevdir=%{_udevdir} \
	--with-udevruledir=%{_udevruledir} \
	--with-dracutdir=%{_dracutdir} \
	--with-pamconfigsdir=%{_datadir}/pam-configs \
	--with-pammoduledir=%{_libdir}/security \
	--with-python=%{__python} \
	--with-pkgconfigdir=%{_pkgconfigdir} \
	--disable-static \
	%{debug} \
	%{debuginfo} \
	%{asan} \
	%{systemd} \
	%{pam} \
	%{pyzfs}
	make %{?_smp_mflags}

	%install
	%{__rm} -rf $RPM_BUILD_ROOT
	make install DESTDIR=%{?buildroot}
	find %{?buildroot}%{_libdir} -name '*.la' -exec rm -f {} \;
	%if 0%{!?__brp_mangle_shebangs:1}
	find %{?buildroot}%{_bindir} \
	$ -name arc_summary -or -name arcstat -or -name dbufstat $ \
	-exec %{__sed} -i 's\|^#!.*\|#!%{__python}\|' {} \;
	find %{?buildroot}%{_datadir} \
	$ -name test-runner.py -or -name zts-report.py $ \
	-exec %{__sed} -i 's\|^#!.*\|#!%{__python}\|' {} \;
	%endif

	%post
	%if 0%{?_systemd}
	%if 0%{?systemd_post:1}
	%systemd_post %{systemd_svcs}
	%else
	if [ "$1" = "1" -o "$1" = "install" ] ; then
	# Initial installation
	systemctl preset %{systemd_svcs} >/dev/null \|\| true
	fi
	%endif
	%else
	if [ -x /sbin/chkconfig ]; then
	/sbin/chkconfig --add zfs-import
	/sbin/chkconfig --add zfs-mount
	/sbin/chkconfig --add zfs-share
	/sbin/chkconfig --add zfs-zed
	fi
	%endif
	exit 0

	# On RHEL/CentOS 7 the static nodes aren't refreshed by default after
	# installing a package. This is the default behavior for Fedora.
	%posttrans
	%if 0%{?rhel} == 7 \|\| 0%{?centos} == 7
	systemctl restart kmod-static-nodes
	systemctl restart systemd-tmpfiles-setup-dev
	udevadm trigger
	%endif

	%preun
	%if 0%{?_systemd}
	%if 0%{?systemd_preun:1}
	%systemd_preun %{systemd_svcs}
	%else
	if [ "$1" = "0" -o "$1" = "remove" ] ; then
	# Package removal, not upgrade
	systemctl --no-reload disable %{systemd_svcs} >/dev/null \|\| true
	systemctl stop %{systemd_svcs} >/dev/null \|\| true
	fi
	%endif
	%else
	if [ "$1" = "0" -o "$1" = "remove" ] && [ -x /sbin/chkconfig ]; then
	/sbin/chkconfig --del zfs-import
	/sbin/chkconfig --del zfs-mount
	/sbin/chkconfig --del zfs-share
	/sbin/chkconfig --del zfs-zed
	fi
	%endif
	exit 0

	%postun
	%if 0%{?_systemd}
	%if 0%{?systemd_postun:1}
	%systemd_postun %{systemd_svcs}
	%else
	systemctl --system daemon-reload >/dev/null \|\| true
	%endif
	%endif

	%files
	# Core utilities
	%{_sbindir}/*
	%{_bindir}/raidz_test
	%{_sbindir}/zgenhostid
	%{_bindir}/zvol_wait
	# Optional Python 2/3 scripts
	%{_bindir}/arc_summary
	%{_bindir}/arcstat
	%{_bindir}/dbufstat
	# Man pages
	%{_mandir}/man1/*
	+%{_mandir}/man4/*
	%{_mandir}/man5/*
	+%{_mandir}/man7/*
	%{_mandir}/man8/*
	# Configuration files and scripts
	%{_libexecdir}/%{name}
	%{_udevdir}/vdev_id
	%{_udevdir}/zvol_id
	%{_udevdir}/rules.d/*
	%{_datadir}/%{name}/compatibility.d
	%if ! 0%{?_systemd} \|\| 0%{?_initramfs}
	# Files needed for sysvinit and initramfs-tools
	%{_sysconfdir}/%{name}/zfs-functions
	%config(noreplace) %{_initconfdir}/zfs
	%else
	%exclude %{_sysconfdir}/%{name}/zfs-functions
	%exclude %{_initconfdir}/zfs
	%endif
	%if 0%{?_systemd}
	%{_unitdir}/*
	%{_presetdir}/*
	%{_modulesloaddir}/*
	%{_systemdgeneratordir}/*
	%else
	%config(noreplace) %{_sysconfdir}/init.d/*
	%endif
	%config(noreplace) %{_sysconfdir}/%{name}/zed.d/*
	%config(noreplace) %{_sysconfdir}/%{name}/zpool.d/*
	%config(noreplace) %{_sysconfdir}/%{name}/vdev_id.conf.*.example
	%attr(440, root, root) %config(noreplace) %{_sysconfdir}/sudoers.d/*
	%if %{with pam}
	%{_libdir}/security/*
	%{_datadir}/pam-configs/*
	%endif

	%files -n libzpool5
	%{_libdir}/libzpool.so.*

	%files -n libnvpair3
	%{_libdir}/libnvpair.so.*

	%files -n libuutil3
	%{_libdir}/libuutil.so.*

	%files -n libzfs5
	%{_libdir}/libzfs.so.

	%files -n libzfs5-devel
	%{_pkgconfigdir}/libzfs.pc
	%{_pkgconfigdir}/libzfsbootenv.pc
	%{_pkgconfigdir}/libzfs_core.pc
	%{_libdir}/*.so
	%{_includedir}/*
	%doc AUTHORS COPYRIGHT LICENSE NOTICE README.md

	%files test
	%{_datadir}/%{name}/zfs-tests
	%{_datadir}/%{name}/test-runner
	%{_datadir}/%{name}/runfiles
	%{_datadir}/%{name}/*.sh

	%files dracut
	%doc contrib/dracut/README.dracut.markdown
	%{_dracutdir}/modules.d/*

	%if %{with pyzfs}
	%files -n python%{__python_pkg_version}-pyzfs
	%doc contrib/pyzfs/README
	%doc contrib/pyzfs/LICENSE
	%defattr(-,root,root,-)
	%{__python_sitelib}/libzfs_core/*
	%{__python_sitelib}/pyzfs*
	%endif

	%if 0%{?_initramfs}
	%files initramfs
	%doc contrib/initramfs/README.initramfs.markdown
	/usr/share/initramfs-tools/*
	%else
	# Since we're not building the initramfs package,
	# ignore those files.
	%exclude /usr/share/initramfs-tools
	%endif
	diff --git a/sys/contrib/openzfs/scripts/commitcheck.sh b/sys/contrib/openzfs/scripts/commitcheck.sh
	index 0077eb6b0406..cb9fd66c6f46 100755
	--- a/sys/contrib/openzfs/scripts/commitcheck.sh
	+++ b/sys/contrib/openzfs/scripts/commitcheck.sh
	@@ -1,123 +1,123 @@
	#!/bin/sh

	REF="HEAD"

	# test commit body for length
	# lines containing urls are exempt for the length limit.
	test_commit_bodylength()
	{
	length="72"
	- body=$(git log -n 1 --pretty=%b "$REF" \| grep -Ev "http(s)*://" \| grep -E -m 1 ".{$((length + 1))}")
	+ body=$(git log --no-show-signature -n 1 --pretty=%b "$REF" \| grep -Ev "http(s)*://" \| grep -E -m 1 ".{$((length + 1))}")
	if [ -n "$body" ]; then
	echo "error: commit message body contains line over ${length} characters"
	return 1
	fi

	return 0
	}

	# check for a tagged line
	check_tagged_line()
	{
	regex='^[[:space:]]*'"$1"':[[:space:]][[:print:]]+[[:space:]]<[[:graph:]]+>$'
	- foundline=$(git log -n 1 "$REF" \| grep -E -m 1 "$regex")
	+ foundline=$(git log --no-show-signature -n 1 "$REF" \| grep -E -m 1 "$regex")
	if [ -z "$foundline" ]; then
	echo "error: missing \"$1\""
	return 1
	fi

	return 0
	}

	# check commit message for a normal commit
	new_change_commit()
	{
	error=0

	# subject is not longer than 72 characters
	- long_subject=$(git log -n 1 --pretty=%s "$REF" \| grep -E -m 1 '.{73}')
	+ long_subject=$(git log --no-show-signature -n 1 --pretty=%s "$REF" \| grep -E -m 1 '.{73}')
	if [ -n "$long_subject" ]; then
	echo "error: commit subject over 72 characters"
	error=1
	fi

	# need a signed off by
	if ! check_tagged_line "Signed-off-by" ; then
	error=1
	fi

	# ensure that no lines in the body of the commit are over 72 characters
	if ! test_commit_bodylength ; then
	error=1
	fi

	return $error
	}

	is_coverity_fix()
	{
	# subject starts with Fix coverity defects means it's a coverity fix
	- subject=$(git log -n 1 --pretty=%s "$REF" \| grep -E -m 1 '^Fix coverity defects')
	+ subject=$(git log --no-show-signature -n 1 --pretty=%s "$REF" \| grep -E -m 1 '^Fix coverity defects')
	if [ -n "$subject" ]; then
	return 0
	fi

	return 1
	}

	coverity_fix_commit()
	{
	error=0

	# subject starts with Fix coverity defects: CID dddd, dddd...
	- subject=$(git log -n 1 --pretty=%s "$REF" \|
	+ subject=$(git log --no-show-signature -n 1 --pretty=%s "$REF" \|
	grep -E -m 1 'Fix coverity defects: CID [[:digit:]]+(, [[:digit:]]+)*')
	if [ -z "$subject" ]; then
	echo "error: Coverity defect fixes must have a subject line that starts with \"Fix coverity defects: CID dddd\""
	error=1
	fi

	# need a signed off by
	if ! check_tagged_line "Signed-off-by" ; then
	error=1
	fi

	# test each summary line for the proper format
	OLDIFS=$IFS
	IFS='
	'
	- for line in $(git log -n 1 --pretty=%b "$REF" \| grep -E '^CID'); do
	+ for line in $(git log --no-show-signature -n 1 --pretty=%b "$REF" \| grep -E '^CID'); do
	if ! echo "$line" \| grep -qE '^CID [[:digit:]]+: ([[:graph:]]+\|[[:space:]])+ $([[:upper:]]\|\_)+$'; then
	echo "error: commit message has an improperly formatted CID defect line"
	error=1
	fi
	done
	IFS=$OLDIFS

	# ensure that no lines in the body of the commit are over 72 characters
	if ! test_commit_bodylength; then
	error=1
	fi

	return $error
	}

	if [ -n "$1" ]; then
	REF="$1"
	fi

	# if coverity fix, test against that
	if is_coverity_fix; then
	if ! coverity_fix_commit; then
	exit 1
	else
	exit 0
	fi
	fi

	# have a normal commit
	if ! new_change_commit ; then
	exit 1
	fi

	exit 0
	diff --git a/sys/contrib/openzfs/scripts/make_gitrev.sh b/sys/contrib/openzfs/scripts/make_gitrev.sh
	index da21455332ab..e7f4ce8844d5 100755
	--- a/sys/contrib/openzfs/scripts/make_gitrev.sh
	+++ b/sys/contrib/openzfs/scripts/make_gitrev.sh
	@@ -1,78 +1,78 @@
	#!/bin/sh

	#
	# CDDL HEADER START
	#
	# This file and its contents are supplied under the terms of the
	# Common Development and Distribution License ("CDDL"), version 1.0.
	# You may only use this file in accordance with the terms of version
	# 1.0 of the CDDL.
	#
	# A full copy of the text of the CDDL should have accompanied this
	# source. A copy of the CDDL is also available via the Internet at
	# http://www.illumos.org/license/CDDL.
	#
	# CDDL HEADER END
	#

	# Copyright (c) 2018 by Delphix. All rights reserved.
	# Copyright (c) 2018 by Matthew Thode. All rights reserved.

	#
	# Generate zfs_gitrev.h. Note that we need to do this for every
	# invocation of `make`, including for incremental builds. Therefore we
	# can't use a zfs_gitrev.h.in file which would be processed only when
	# `configure` is run.
	#

	set -e -u

	dist=no
	distdir=.
	while getopts D: flag
	do
	case $flag in
	\?) echo "Usage: $0 [-D distdir] [file]" >&2; exit 1;;
	D) dist=yes; distdir=${OPTARG};;
	esac
	done
	shift $((OPTIND - 1))

	top_srcdir="$(dirname "$0")/.."
	GITREV="${1:-include/zfs_gitrev.h}"

	# GITREV should be a relative path (relative to top_builddir or distdir)
	case "${GITREV}" in
	/*) echo "Error: ${GITREV} should be a relative path" >&2
	exit 1;;
	esac

	ZFS_GITREV=$({ cd "${top_srcdir}" &&
	git describe --always --long --dirty 2>/dev/null; } \|\| :)

	-if [ "x${ZFS_GITREV}" = x ]
	+if [ -z "${ZFS_GITREV}" ]
	then
	# If the source directory is not a git repository, check if the file
	# already exists (in the source)
	if [ -f "${top_srcdir}/${GITREV}" ]
	then
	ZFS_GITREV=$(sed -n \
	'1s/^#define[[:blank:]]ZFS_META_GITREV "$[^"]*$"$/\1/p' \
	"${top_srcdir}/${GITREV}")
	fi
	elif [ ${dist} = yes ]
	then
	# Append -dist when creating distributed sources from a git repository
	ZFS_GITREV="${ZFS_GITREV}-dist"
	fi
	ZFS_GITREV=${ZFS_GITREV:-unknown}

	GITREVTMP="${GITREV}~"
	printf '#define\tZFS_META_GITREV "%s"\n' "${ZFS_GITREV}" >"${GITREVTMP}"
	GITREV="${distdir}/${GITREV}"
	if cmp -s "${GITREV}" "${GITREVTMP}"
	then
	rm -f "${GITREVTMP}"
	else
	mv -f "${GITREVTMP}" "${GITREV}"
	fi
	diff --git a/sys/contrib/openzfs/scripts/man-dates.sh b/sys/contrib/openzfs/scripts/man-dates.sh
	index 186d94639a56..39f1b5fb1324 100755
	--- a/sys/contrib/openzfs/scripts/man-dates.sh
	+++ b/sys/contrib/openzfs/scripts/man-dates.sh
	@@ -1,12 +1,12 @@
	#!/bin/sh

	# This script updates the date lines in the man pages to the date of the last
	# commit to that file.

	set -eu

	find man -type f \| while read -r i ; do
	git_date=$(git log -1 --date=short --format="%ad" -- "$i")
	- [ "x$git_date" = "x" ] && continue
	+ [ -z "$git_date" ] && continue
	sed -i "s\|^\.Dd.*\|.Dd $(date -d "$git_date" "+%B %-d, %Y")\|" "$i"
	done
	diff --git a/sys/contrib/openzfs/scripts/zol2zfs-patch.sed b/sys/contrib/openzfs/scripts/zol2zfs-patch.sed
	index bb6d9faac450..0ca4b6cd6b7e 100755
	--- a/sys/contrib/openzfs/scripts/zol2zfs-patch.sed
	+++ b/sys/contrib/openzfs/scripts/zol2zfs-patch.sed
	@@ -1,20 +1,20 @@
	#!/bin/sed -f

	s:cmd:usr/src/cmd:g
	s:include/libzfs.h:usr/src/lib/libzfs/common/libzfs.h:g
	s:include/libzfs_core.h:usr/src/lib/libzfs_core/common/libzfs_core.h:g
	s:include/sys:lib/libzpool/common/sys:g
	s:include/sys:usr/src/uts/common/fs/zfs/sys:g
	s:include/sys:usr/src/uts/common/sys:g
	s:include/zfs_fletcher.h:usr/src/common/zfs/zfs_fletcher.h:g
	s:include:usr/src/common/zfs:g
	s:lib/libzfs:usr/src/lib/libzfs/common:g
	s:lib/libzfs_core:usr/src/lib/libzfs_core/common:g
	s:lib/libzpool:lib/libzpool/common:g
	s:lib/libzpool:usr/src/lib/libzpool:g
	-s:man/man5/zpool-features.5:usr/src/man/man5/zpool-features.5:g
	+s:man/man7/zpool-features.7:usr/src/man/man5/zpool-features.5:g
	s:man/man8/zfs.8:usr/src/man/man1m/zfs.1m:g
	s:module/nvpair:usr/src/common/nvpair:g
	s:module/zcommon:usr/src/common/zfs/:g
	s:module/zfs:usr/src/uts/common/fs/zfs:g
	s:tests/zfs-tests:test/zfs-tests:g
	diff --git a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zfs_destroy/Makefile.am b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zfs_destroy/Makefile.am
	index c012b35d05b4..664f3d81aea6 100644
	--- a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zfs_destroy/Makefile.am
	+++ b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zfs_destroy/Makefile.am
	@@ -1,29 +1,30 @@
	pkgdatadir = $(datadir)/@PACKAGE@/zfs-tests/tests/functional/cli_root/zfs_destroy
	dist_pkgdata_SCRIPTS = \
	setup.ksh \
	cleanup.ksh \
	zfs_clone_livelist_condense_and_disable.ksh \
	zfs_clone_livelist_condense_races.ksh \
	+ zfs_clone_livelist_dedup.ksh \
	zfs_destroy_001_pos.ksh \
	zfs_destroy_002_pos.ksh \
	zfs_destroy_003_pos.ksh \
	zfs_destroy_004_pos.ksh \
	zfs_destroy_005_neg.ksh \
	zfs_destroy_006_neg.ksh \
	zfs_destroy_007_neg.ksh \
	zfs_destroy_008_pos.ksh \
	zfs_destroy_009_pos.ksh \
	zfs_destroy_010_pos.ksh \
	zfs_destroy_011_pos.ksh \
	zfs_destroy_012_pos.ksh \
	zfs_destroy_013_neg.ksh \
	zfs_destroy_014_pos.ksh \
	zfs_destroy_015_pos.ksh \
	zfs_destroy_016_pos.ksh \
	zfs_destroy_clone_livelist.ksh \
	zfs_destroy_dev_removal.ksh \
	zfs_destroy_dev_removal_condense.ksh

	dist_pkgdata_DATA = \
	zfs_destroy_common.kshlib \
	zfs_destroy.cfg
	diff --git a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/ctime/Makefile.am b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/ctime/Makefile.am
	index e7479ae81056..3174f78c6249 100644
	--- a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/ctime/Makefile.am
	+++ b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/ctime/Makefile.am
	@@ -1,13 +1,15 @@
	include $(top_srcdir)/config/Rules.am

	pkgdatadir = $(datadir)/@PACKAGE@/zfs-tests/tests/functional/ctime

	dist_pkgdata_SCRIPTS = \
	ctime_001_pos.ksh \
	cleanup.ksh \
	setup.ksh

	pkgexecdir = $(datadir)/@PACKAGE@/zfs-tests/tests/functional/ctime

	pkgexec_PROGRAMS = ctime
	ctime_SOURCES = ctime.c
	+
	+ctime_LDADD = $(abs_top_builddir)/lib/libzfs_core/libzfs_core.la
	diff --git a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/ctime/ctime.c b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/ctime/ctime.c
	index d01fa0d4ed3e..2d515d957a90 100644
	--- a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/ctime/ctime.c
	+++ b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/ctime/ctime.c
	@@ -1,376 +1,373 @@
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	/*
	* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
	* Use is subject to license terms.
	*/

	/*
	* Copyright (c) 2013 by Delphix. All rights reserved.
	*/


	#include <sys/types.h>
	#include <sys/stat.h>
	#ifndef __FreeBSD__
	#include <sys/xattr.h>
	#endif
	#include <utime.h>
	#include <stdio.h>
	#include <stdlib.h>
	+#include <libzutil.h>
	#include <unistd.h>
	#include <strings.h>
	#include <errno.h>
	#include <fcntl.h>
	#include <libgen.h>
	#include <string.h>

	#define ST_ATIME 0
	#define ST_CTIME 1
	#define ST_MTIME 2

	#define ALL_MODE (mode_t)(S_IRWXU\|S_IRWXG\|S_IRWXO)

	typedef struct timetest {
	int type;
	char *name;
	int (func)(const char pfile);
	} timetest_t;

	static char tfile[BUFSIZ] = { 0 };

	/*
	* DESCRIPTION:
	* Verify time will be changed correctly after each operation.
	*
	* STRATEGY:
	* 1. Define time test array.
	* 2. Loop through each item in this array.
	* 3. Verify the time is changed after each operation.
	*
	*/

	static int
	get_file_time(const char pfile, int what, time_t ptr)
	{
	struct stat stat_buf;

	if (pfile == NULL \|\| ptr == NULL) {
	return (-1);
	}

	if (stat(pfile, &stat_buf) == -1) {
	return (-1);
	}

	switch (what) {
	case ST_ATIME:
	*ptr = stat_buf.st_atime;
	return (0);
	case ST_CTIME:
	*ptr = stat_buf.st_ctime;
	return (0);
	case ST_MTIME:
	*ptr = stat_buf.st_mtime;
	return (0);
	default:
	return (-1);
	}
	}

	static int
	do_read(const char *pfile)
	{
	int fd, ret = 0;
	char buf[BUFSIZ] = { 0 };

	if (pfile == NULL) {
	return (-1);
	}

	if ((fd = open(pfile, O_RDONLY, ALL_MODE)) == -1) {
	return (-1);
	}
	if (read(fd, buf, sizeof (buf)) == -1) {
	(void) fprintf(stderr, "read(%d, buf, %zd) failed with errno "
	"%d\n", fd, sizeof (buf), errno);
	(void) close(fd);
	return (1);
	}
	(void) close(fd);

	return (ret);
	}

	static int
	do_write(const char *pfile)
	{
	int fd, ret = 0;
	char buf[BUFSIZ] = "call function do_write()";

	if (pfile == NULL) {
	return (-1);
	}

	if ((fd = open(pfile, O_WRONLY, ALL_MODE)) == -1) {
	return (-1);
	}
	if (write(fd, buf, strlen(buf)) == -1) {
	(void) fprintf(stderr, "write(%d, buf, %d) failed with errno "
	"%d\n", fd, (int)strlen(buf), errno);
	(void) close(fd);
	return (1);
	}
	(void) close(fd);

	return (ret);
	}

	static int
	do_link(const char *pfile)
	{
	int ret = 0;
	- char link_file[BUFSIZ] = { 0 };
	- char pfile_copy[BUFSIZ] = { 0 };
	- char *dname;
	+ char link_file[BUFSIZ + 16] = { 0 };

	if (pfile == NULL) {
	return (-1);
	}

	- strncpy(pfile_copy, pfile, sizeof (pfile_copy)-1);
	- pfile_copy[sizeof (pfile_copy) - 1] = '\0';
	/*
	* Figure out source file directory name, and create
	* the link file in the same directory.
	*/
	- dname = dirname((char *)pfile_copy);
	- (void) snprintf(link_file, BUFSIZ, "%s/%s", dname, "link_file");
	+ (void) snprintf(link_file, sizeof (link_file),
	+ "%.*s/%s", (int)zfs_dirnamelen(pfile), pfile, "link_file");

	if (link(pfile, link_file) == -1) {
	(void) fprintf(stderr, "link(%s, %s) failed with errno %d\n",
	pfile, link_file, errno);
	return (1);
	}

	(void) unlink(link_file);

	return (ret);
	}

	static int
	do_creat(const char *pfile)
	{
	int fd, ret = 0;

	if (pfile == NULL) {
	return (-1);
	}

	if ((fd = creat(pfile, ALL_MODE)) == -1) {
	(void) fprintf(stderr, "creat(%s, ALL_MODE) failed with errno "
	"%d\n", pfile, errno);
	return (1);
	}
	(void) close(fd);

	return (ret);
	}

	static int
	do_utime(const char *pfile)
	{
	int ret = 0;

	if (pfile == NULL) {
	return (-1);
	}

	/*
	* Times of the file are set to the current time
	*/
	if (utime(pfile, NULL) == -1) {
	(void) fprintf(stderr, "utime(%s, NULL) failed with errno "
	"%d\n", pfile, errno);
	return (1);
	}

	return (ret);
	}

	static int
	do_chmod(const char *pfile)
	{
	int ret = 0;

	if (pfile == NULL) {
	return (-1);
	}

	if (chmod(pfile, ALL_MODE) == -1) {
	(void) fprintf(stderr, "chmod(%s, ALL_MODE) failed with "
	"errno %d\n", pfile, errno);
	return (1);
	}

	return (ret);
	}

	static int
	do_chown(const char *pfile)
	{
	int ret = 0;

	if (pfile == NULL) {
	return (-1);
	}

	if (chown(pfile, getuid(), getgid()) == -1) {
	(void) fprintf(stderr, "chown(%s, %d, %d) failed with errno "
	"%d\n", pfile, (int)getuid(), (int)getgid(), errno);
	return (1);
	}

	return (ret);
	}

	#ifndef __FreeBSD__
	static int
	do_xattr(const char *pfile)
	{
	int ret = 0;
	char *value = "user.value";

	if (pfile == NULL) {
	return (-1);
	}

	if (setxattr(pfile, "user.x", value, strlen(value), 0) == -1) {
	(void) fprintf(stderr, "setxattr(%s, %d, %d) failed with errno "
	"%d\n", pfile, (int)getuid(), (int)getgid(), errno);
	return (1);
	}
	return (ret);
	}
	#endif

	static void
	cleanup(void)
	{
	if ((strlen(tfile) != 0) && (access(tfile, F_OK) == 0)) {
	(void) unlink(tfile);
	}
	}

	static timetest_t timetest_table[] = {
	{ ST_ATIME, "st_atime", do_read },
	{ ST_ATIME, "st_atime", do_utime },
	{ ST_MTIME, "st_mtime", do_creat },
	{ ST_MTIME, "st_mtime", do_write },
	{ ST_MTIME, "st_mtime", do_utime },
	{ ST_CTIME, "st_ctime", do_creat },
	{ ST_CTIME, "st_ctime", do_write },
	{ ST_CTIME, "st_ctime", do_chmod },
	{ ST_CTIME, "st_ctime", do_chown },
	{ ST_CTIME, "st_ctime", do_link },
	{ ST_CTIME, "st_ctime", do_utime },
	#ifndef __FreeBSD__
	{ ST_CTIME, "st_ctime", do_xattr },
	#endif
	};

	#define NCOMMAND (sizeof (timetest_table) / sizeof (timetest_table[0]))

	/* ARGSUSED */
	int
	main(int argc, char *argv[])
	{
	int i, ret, fd;
	char *penv[] = {"TESTDIR", "TESTFILE0"};

	(void) atexit(cleanup);

	/*
	* Get the environment variable values.
	*/
	for (i = 0; i < sizeof (penv) / sizeof (char *); i++) {
	if ((penv[i] = getenv(penv[i])) == NULL) {
	(void) fprintf(stderr, "getenv(penv[%d])\n", i);
	return (1);
	}
	}
	(void) snprintf(tfile, sizeof (tfile), "%s/%s", penv[0], penv[1]);

	/*
	- * If the test file is exists, remove it first.
	+ * If the test file exists, remove it first.
	*/
	if (access(tfile, F_OK) == 0) {
	(void) unlink(tfile);
	}
	ret = 0;
	if ((fd = open(tfile, O_WRONLY \| O_CREAT \| O_TRUNC, ALL_MODE)) == -1) {
	(void) fprintf(stderr, "open(%s) failed: %d\n", tfile, errno);
	return (1);
	}
	(void) close(fd);

	for (i = 0; i < NCOMMAND; i++) {
	time_t t1, t2;

	/*
	* Get original time before operating.
	*/
	ret = get_file_time(tfile, timetest_table[i].type, &t1);
	if (ret != 0) {
	(void) fprintf(stderr, "get_file_time(%s %d) = %d\n",
	tfile, timetest_table[i].type, ret);
	return (1);
	}

	/*
	* Sleep 2 seconds, then invoke command on given file
	*/
	(void) sleep(2);
	timetest_table[i].func(tfile);

	/*
	* Get time after operating.
	*/
	ret = get_file_time(tfile, timetest_table[i].type, &t2);
	if (ret != 0) {
	(void) fprintf(stderr, "get_file_time(%s %d) = %d\n",
	tfile, timetest_table[i].type, ret);
	return (1);
	}

	if (t1 == t2) {
	(void) fprintf(stderr, "%s: t1(%ld) == t2(%ld)\n",
	timetest_table[i].name, (long)t1, (long)t2);
	return (1);
	} else {
	(void) fprintf(stderr, "%s: t1(%ld) != t2(%ld)\n",
	timetest_table[i].name, (long)t1, (long)t2);
	}
	}

	return (0);
	}
	diff --git a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/l2arc/l2arc_mfuonly_pos.ksh b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/l2arc/l2arc_mfuonly_pos.ksh
	index 489360d8c523..5d0198c90c16 100755
	--- a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/l2arc/l2arc_mfuonly_pos.ksh
	+++ b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/l2arc/l2arc_mfuonly_pos.ksh
	@@ -1,94 +1,94 @@
	#!/bin/ksh -p
	#
	# CDDL HEADER START
	#
	# This file and its contents are supplied under the terms of the
	# Common Development and Distribution License ("CDDL"), version 1.0.
	# You may only use this file in accordance with the terms of version
	# 1.0 of the CDDL.
	#
	# A full copy of the text of the CDDL should have accompanied this
	# source. A copy of the CDDL is also available via the Internet at
	# http://www.illumos.org/license/CDDL.
	#
	# CDDL HEADER END
	#

	#
	# Copyright (c) 2020, George Amanakis. All rights reserved.
	#

	. $STF_SUITE/include/libtest.shlib
	. $STF_SUITE/tests/functional/l2arc/l2arc.cfg

	#
	# DESCRIPTION:
	# l2arc_mfuonly does not cache MRU buffers
	#
	# STRATEGY:
	# 1. Set l2arc_mfuonly=yes
	# 2. Create pool with a cache device.
	# 3. Create a random file in that pool, smaller than the cache device
	# and random read for 10 sec.
	# 4. Export and re-import the pool. This is necessary as some MFU ghost
	# buffers with prefetch status may transition to MRU eventually.
	# By re-importing the pool the l2 arcstats reflect the ARC state
	# of L2ARC buffers upon their caching in L2ARC.
	# 5. Verify l2arc_mru_asize is 0.
	#

	verify_runnable "global"

	log_assert "l2arc_mfuonly does not cache MRU buffers."

	function cleanup
	{
	if poolexists $TESTPOOL ; then
	destroy_pool $TESTPOOL
	fi

	log_must set_tunable32 L2ARC_NOPREFETCH $noprefetch
	log_must set_tunable32 L2ARC_MFUONLY $mfuonly
	log_must set_tunable32 PREFETCH_DISABLE $zfsprefetch
	}
	log_onexit cleanup

	# L2ARC_NOPREFETCH is set to 1 as some prefetched buffers may
	# transition to MRU.
	typeset noprefetch=$(get_tunable L2ARC_NOPREFETCH)
	log_must set_tunable32 L2ARC_NOPREFETCH 1

	typeset mfuonly=$(get_tunable L2ARC_MFUONLY)
	log_must set_tunable32 L2ARC_MFUONLY 1

	typeset zfsprefetch=$(get_tunable PREFETCH_DISABLE)
	log_must set_tunable32 PREFETCH_DISABLE 1

	typeset fill_mb=800
	typeset cache_sz=$(( 1.4 * $fill_mb ))
	export FILE_SIZE=$(( floor($fill_mb / $NUMJOBS) ))M

	log_must truncate -s ${cache_sz}M $VDEV_CACHE

	typeset log_blk_start=$(get_arcstat l2_log_blk_writes)

	log_must zpool create -f $TESTPOOL $VDEV cache $VDEV_CACHE

	log_must fio $FIO_SCRIPTS/mkfiles.fio
	log_must fio $FIO_SCRIPTS/random_reads.fio

	log_must zpool export $TESTPOOL
	log_must zpool import -d $VDIR $TESTPOOL

	# Regardless of l2arc_noprefetch, some MFU buffers might be evicted
	# from ARC, accessed later on as prefetches and transition to MRU as
	# prefetches.
	# If accessed again they are counted as MRU and the l2arc_mru_asize arcstat
	-# will not be 0 (mentioned also in zfs-module-parameters.5)
	+# will not be 0 (mentioned also in zfs.4)
	# For the purposes of this test we mitigate this by disabling (predictive)
	# ZFS prefetches with zfs_prefetch_disable=1.
	log_must test $(get_arcstat l2_mru_asize) -eq 0

	log_must zpool destroy -f $TESTPOOL

	log_pass "l2arc_mfuonly does not cache MRU buffers."
	diff --git a/sys/modules/zfs/zfs_config.h b/sys/modules/zfs/zfs_config.h
	index 1400d9fe92c0..6565242f82f9 100644
	--- a/sys/modules/zfs/zfs_config.h
	+++ b/sys/modules/zfs/zfs_config.h
	@@ -1,774 +1,774 @@
	/*
	* $FreeBSD$
	*/

	/* zfs_config.h. Generated from zfs_config.h.in by configure. */
	/* zfs_config.h.in. Generated from configure.ac by autoheader. */

	/* Define to 1 if translation of program messages to the user's native
	language is requested. */
	/* #undef ENABLE_NLS */

	/* bio_end_io_t wants 1 arg */
	/* #undef HAVE_1ARG_BIO_END_IO_T */

	/* lookup_bdev() wants 1 arg */
	/* #undef HAVE_1ARG_LOOKUP_BDEV */

	/* submit_bio() wants 1 arg */
	/* #undef HAVE_1ARG_SUBMIT_BIO */

	/* bdi_setup_and_register() wants 2 args */
	/* #undef HAVE_2ARGS_BDI_SETUP_AND_REGISTER */

	/* vfs_getattr wants 2 args */
	/* #undef HAVE_2ARGS_VFS_GETATTR */

	/* zlib_deflate_workspacesize() wants 2 args */
	/* #undef HAVE_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE */

	/* bdi_setup_and_register() wants 3 args */
	/* #undef HAVE_3ARGS_BDI_SETUP_AND_REGISTER */

	/* vfs_getattr wants 3 args */
	/* #undef HAVE_3ARGS_VFS_GETATTR */

	/* vfs_getattr wants 4 args */
	/* #undef HAVE_4ARGS_VFS_GETATTR */

	/* kernel has access_ok with 'type' parameter */
	/* #undef HAVE_ACCESS_OK_TYPE */

	/* posix_acl has refcount_t */
	/* #undef HAVE_ACL_REFCOUNT */

	/* Define if host toolchain supports AES */
	#define HAVE_AES 1

	#ifdef __amd64__
	#ifndef RESCUE
	/* Define if host toolchain supports AVX */
	#define HAVE_AVX 1
	#endif

	/* Define if host toolchain supports AVX2 */
	#define HAVE_AVX2 1

	/* Define if host toolchain supports AVX512BW */
	#define HAVE_AVX512BW 1

	/* Define if host toolchain supports AVX512CD */
	#define HAVE_AVX512CD 1

	/* Define if host toolchain supports AVX512DQ */
	#define HAVE_AVX512DQ 1

	/* Define if host toolchain supports AVX512ER */
	#define HAVE_AVX512ER 1

	/* Define if host toolchain supports AVX512F */
	#define HAVE_AVX512F 1

	/* Define if host toolchain supports AVX512IFMA */
	#define HAVE_AVX512IFMA 1

	/* Define if host toolchain supports AVX512PF */
	#define HAVE_AVX512PF 1

	/* Define if host toolchain supports AVX512VBMI */
	#define HAVE_AVX512VBMI 1

	/* Define if host toolchain supports AVX512VL */
	#define HAVE_AVX512VL 1
	#endif

	/* bdev_check_media_change() exists */
	/* #undef HAVE_BDEV_CHECK_MEDIA_CHANGE */

	/* bdev_whole() is available */
	/* #undef HAVE_BDEV_WHOLE */

	/* bio->bi_opf is defined */
	/* #undef HAVE_BIO_BI_OPF */

	/* bio->bi_status exists */
	/* #undef HAVE_BIO_BI_STATUS */

	/* bio has bi_iter */
	/* #undef HAVE_BIO_BVEC_ITER */

	/* bio__io_acct() available /
	/* #undef HAVE_BIO_IO_ACCT */

	/* bio_set_dev() is available */
	/* #undef HAVE_BIO_SET_DEV */

	/* bio_set_dev() GPL-only */
	/* #undef HAVE_BIO_SET_DEV_GPL_ONLY */

	/* bio_set_op_attrs is available */
	/* #undef HAVE_BIO_SET_OP_ATTRS */

	/* blkdev_reread_part() exists */
	/* #undef HAVE_BLKDEV_REREAD_PART */

	/* blkg_tryget() is available */
	/* #undef HAVE_BLKG_TRYGET */

	/* blkg_tryget() GPL-only */
	/* #undef HAVE_BLKG_TRYGET_GPL_ONLY */

	/* blk_alloc_queue() expects request function */
	/* #undef HAVE_BLK_ALLOC_QUEUE_REQUEST_FN */

	/* blk_alloc_queue_rh() expects request function */
	/* #undef HAVE_BLK_ALLOC_QUEUE_REQUEST_FN_RH */

	/* blk queue backing_dev_info is dynamic */
	/* #undef HAVE_BLK_QUEUE_BDI_DYNAMIC */

	/* blk_queue_flag_clear() exists */
	/* #undef HAVE_BLK_QUEUE_FLAG_CLEAR */

	/* blk_queue_flag_set() exists */
	/* #undef HAVE_BLK_QUEUE_FLAG_SET */

	/* blk_queue_flush() is available */
	/* #undef HAVE_BLK_QUEUE_FLUSH */

	/* blk_queue_flush() is GPL-only */
	/* #undef HAVE_BLK_QUEUE_FLUSH_GPL_ONLY */

	/* blk_queue_secdiscard() is available */
	/* #undef HAVE_BLK_QUEUE_SECDISCARD */

	/* blk_queue_secure_erase() is available */
	/* #undef HAVE_BLK_QUEUE_SECURE_ERASE */

	/* blk_queue_write_cache() exists */
	/* #undef HAVE_BLK_QUEUE_WRITE_CACHE */

	/* blk_queue_write_cache() is GPL-only */
	/* #undef HAVE_BLK_QUEUE_WRITE_CACHE_GPL_ONLY */

	/* Define to 1 if you have the Mac OS X function CFLocaleCopyCurrent in the
	CoreFoundation framework. */
	/* #undef HAVE_CFLOCALECOPYCURRENT */

	/* Define to 1 if you have the Mac OS X function
	CFLocaleCopyPreferredLanguages in the CoreFoundation framework. */
	/* #undef HAVE_CFLOCALECOPYPREFERREDLANGUAGES */

	/* Define to 1 if you have the Mac OS X function CFPreferencesCopyAppValue in
	the CoreFoundation framework. */
	/* #undef HAVE_CFPREFERENCESCOPYAPPVALUE */

	/* check_disk_change() exists */
	/* #undef HAVE_CHECK_DISK_CHANGE */

	/* clear_inode() is available */
	/* #undef HAVE_CLEAR_INODE */

	/* dentry uses const struct dentry_operations */
	/* #undef HAVE_CONST_DENTRY_OPERATIONS */

	/* copy_from_iter() is available */
	/* #undef HAVE_COPY_FROM_ITER */

	/* copy_to_iter() is available */
	/* #undef HAVE_COPY_TO_ITER */

	/* yes */
	/* #undef HAVE_CPU_HOTPLUG */

	/* current_time() exists */
	/* #undef HAVE_CURRENT_TIME */

	/* Define if the GNU dcgettext() function is already present or preinstalled.
	*/
	/* #undef HAVE_DCGETTEXT */

	/* DECLARE_EVENT_CLASS() is available */
	/* #undef HAVE_DECLARE_EVENT_CLASS */

	/* lookup_bdev() wants dev_t arg */
	/* #undef HAVE_DEVT_LOOKUP_BDEV */

	/* sops->dirty_inode() wants flags */
	/* #undef HAVE_DIRTY_INODE_WITH_FLAGS */

	/* Define to 1 if you have the <dlfcn.h> header file. */
	#define HAVE_DLFCN_H 1

	/* d_make_root() is available */
	/* #undef HAVE_D_MAKE_ROOT */

	/* d_prune_aliases() is available */
	/* #undef HAVE_D_PRUNE_ALIASES */

	/* dops->d_revalidate() operation takes nameidata */
	/* #undef HAVE_D_REVALIDATE_NAMEIDATA */

	/* eops->encode_fh() wants child and parent inodes */
	/* #undef HAVE_ENCODE_FH_WITH_INODE */

	/* sops->evict_inode() exists */
	/* #undef HAVE_EVICT_INODE */

	/* fops->aio_fsync() exists */
	/* #undef HAVE_FILE_AIO_FSYNC */

	/* file_dentry() is available */
	/* #undef HAVE_FILE_DENTRY */

	/* file_inode() is available */
	/* #undef HAVE_FILE_INODE */

	/* iops->follow_link() cookie */
	/* #undef HAVE_FOLLOW_LINK_COOKIE */

	/* iops->follow_link() nameidata */
	/* #undef HAVE_FOLLOW_LINK_NAMEIDATA */

	/* fops->fsync() with range */
	/* #undef HAVE_FSYNC_RANGE */

	/* fops->fsync() without dentry */
	/* #undef HAVE_FSYNC_WITHOUT_DENTRY */

	/* generic__io_acct() 3 arg available /
	/* #undef HAVE_GENERIC_IO_ACCT_3ARG */

	/* generic__io_acct() 4 arg available /
	/* #undef HAVE_GENERIC_IO_ACCT_4ARG */

	/* generic_readlink is global */
	/* #undef HAVE_GENERIC_READLINK */

	/* generic_setxattr() exists */
	/* #undef HAVE_GENERIC_SETXATTR */

	/* generic_write_checks() takes kiocb */
	/* #undef HAVE_GENERIC_WRITE_CHECKS_KIOCB */

	/* Define if the GNU gettext() function is already present or preinstalled. */
	/* #undef HAVE_GETTEXT */

	/* iops->get_link() cookie */
	/* #undef HAVE_GET_LINK_COOKIE */

	/* iops->get_link() delayed */
	/* #undef HAVE_GET_LINK_DELAYED */

	/* group_info->gid exists */
	/* #undef HAVE_GROUP_INFO_GID */

	/* has_capability() is available */
	/* #undef HAVE_HAS_CAPABILITY */

	/* Define if you have the iconv() function and it works. */
	#define HAVE_ICONV 1

	/* yes */
	/* #undef HAVE_INODE_LOCK_SHARED */

	/* inode_set_flags() exists */
	/* #undef HAVE_INODE_SET_FLAGS */

	/* inode_set_iversion() exists */
	/* #undef HAVE_INODE_SET_IVERSION */

	/* inode->i_time's are timespec64 /
	/* #undef HAVE_INODE_TIMESPEC64_TIMES */

	/* timestamp_truncate() exists */
	/* #undef HAVE_INODE_TIMESTAMP_TRUNCATE */

	/* Define to 1 if you have the <inttypes.h> header file. */
	#define HAVE_INTTYPES_H 1

	/* in_compat_syscall() is available */
	/* #undef HAVE_IN_COMPAT_SYSCALL */

	/* iov_iter_advance() is available */
	/* #undef HAVE_IOV_ITER_ADVANCE */

	/* iov_iter_count() is available */
	/* #undef HAVE_IOV_ITER_COUNT */

	/* iov_iter_fault_in_readable() is available */
	/* #undef HAVE_IOV_ITER_FAULT_IN_READABLE */

	/* iov_iter_init() is available */
	/* #undef HAVE_IOV_ITER_INIT */

	/* iov_iter_init() is available */
	/* #undef HAVE_IOV_ITER_INIT_LEGACY */

	/* iov_iter_revert() is available */
	/* #undef HAVE_IOV_ITER_REVERT */

	/* iov_iter types are available */
	/* #undef HAVE_IOV_ITER_TYPES */

	/* yes */
	/* #undef HAVE_IO_SCHEDULE_TIMEOUT */

	/* Define to 1 if you have the `issetugid' function. */
	#define HAVE_ISSETUGID 1

	/* kernel has kernel_fpu_* functions */
	/* #undef HAVE_KERNEL_FPU */

	/* kernel has asm/fpu/api.h */
	/* #undef HAVE_KERNEL_FPU_API_HEADER */

	/* kernel fpu internal */
	/* #undef HAVE_KERNEL_FPU_INTERNAL */

	/* uncached_acl_sentinel() exists */
	/* #undef HAVE_KERNEL_GET_ACL_HANDLE_CACHE */

	/* kernel does stack verification */
	/* #undef HAVE_KERNEL_OBJTOOL */

	/* kernel has linux/objtool.h */
	/* #undef HAVE_KERNEL_OBJTOOL_HEADER */

	/* kernel_read() take loff_t pointer */
	/* #undef HAVE_KERNEL_READ_PPOS */

	/* timer_list.function gets a timer_list */
	/* #undef HAVE_KERNEL_TIMER_FUNCTION_TIMER_LIST */

	/* struct timer_list has a flags member */
	/* #undef HAVE_KERNEL_TIMER_LIST_FLAGS */

	/* timer_setup() is available */
	/* #undef HAVE_KERNEL_TIMER_SETUP */

	/* kernel_write() take loff_t pointer */
	/* #undef HAVE_KERNEL_WRITE_PPOS */

	/* kmem_cache_create_usercopy() exists */
	/* #undef HAVE_KMEM_CACHE_CREATE_USERCOPY */

	/* kstrtoul() exists */
	/* #undef HAVE_KSTRTOUL */

	/* ktime_get_coarse_real_ts64() exists */
	/* #undef HAVE_KTIME_GET_COARSE_REAL_TS64 */

	/* ktime_get_raw_ts64() exists */
	/* #undef HAVE_KTIME_GET_RAW_TS64 */

	/* kvmalloc exists */
	/* #undef HAVE_KVMALLOC */

	/* kernel has large stacks */
	/* #undef HAVE_LARGE_STACKS */

	/* Define if you have [aio] */
	/* #undef HAVE_LIBAIO */

	/* Define if you have [blkid] */
	/* #undef HAVE_LIBBLKID */

	/* Define if you have [crypto] */
	#define HAVE_LIBCRYPTO 1

	/* Define if you have [tirpc] */
	/* #undef HAVE_LIBTIRPC */

	/* Define if you have [udev] */
	/* #undef HAVE_LIBUDEV */

	/* Define if you have [uuid] */
	/* #undef HAVE_LIBUUID */

	/* lseek_execute() is available */
	/* #undef HAVE_LSEEK_EXECUTE */

	/* makedev() is declared in sys/mkdev.h */
	/* #undef HAVE_MAKEDEV_IN_MKDEV */

	/* makedev() is declared in sys/sysmacros.h */
	/* #undef HAVE_MAKEDEV_IN_SYSMACROS */

	/* Noting that make_request_fn() returns blk_qc_t */
	/* #undef HAVE_MAKE_REQUEST_FN_RET_QC */

	/* Noting that make_request_fn() returns void */
	/* #undef HAVE_MAKE_REQUEST_FN_RET_VOID */

	/* Define to 1 if you have the <memory.h> header file. */
	#define HAVE_MEMORY_H 1

	/* iops->create()/mkdir()/mknod() take umode_t */
	/* #undef HAVE_MKDIR_UMODE_T */

	/* Define to 1 if you have the `mlockall' function. */
	#define HAVE_MLOCKALL 1

	/* lookup_bdev() wants mode arg */
	/* #undef HAVE_MODE_LOOKUP_BDEV */

	/* Define if host toolchain supports MOVBE */
	#define HAVE_MOVBE 1

	/* new_sync_read()/new_sync_write() are available */
	/* #undef HAVE_NEW_SYNC_READ */

	/* iops->getattr() takes a path */
	/* #undef HAVE_PATH_IOPS_GETATTR */

	/* Define if host toolchain supports PCLMULQDQ */
	#define HAVE_PCLMULQDQ 1

	/* percpu_counter_init() wants gfp_t */
	/* #undef HAVE_PERCPU_COUNTER_INIT_WITH_GFP */

	/* posix_acl_chmod() exists */
	/* #undef HAVE_POSIX_ACL_CHMOD */

	/* posix_acl_from_xattr() needs user_ns */
	/* #undef HAVE_POSIX_ACL_FROM_XATTR_USERNS */

	/* posix_acl_release() is available */
	/* #undef HAVE_POSIX_ACL_RELEASE */

	/* posix_acl_release() is GPL-only */
	/* #undef HAVE_POSIX_ACL_RELEASE_GPL_ONLY */

	/* posix_acl_valid() wants user namespace */
	/* #undef HAVE_POSIX_ACL_VALID_WITH_NS */

	/* proc_ops structure exists */
	/* #undef HAVE_PROC_OPS_STRUCT */

	/* iops->put_link() cookie */
	/* #undef HAVE_PUT_LINK_COOKIE */

	/* iops->put_link() delayed */
	/* #undef HAVE_PUT_LINK_DELAYED */

	/* iops->put_link() nameidata */
	/* #undef HAVE_PUT_LINK_NAMEIDATA */

	/* If available, contains the Python version number currently in use. */
	#define HAVE_PYTHON "3.7"

	/* qat is enabled and existed */
	/* #undef HAVE_QAT */

	/* iops->rename() wants flags */
	/* #undef HAVE_RENAME_WANTS_FLAGS */

	/* REQ_DISCARD is defined */
	/* #undef HAVE_REQ_DISCARD */

	/* REQ_FLUSH is defined */
	/* #undef HAVE_REQ_FLUSH */

	/* REQ_OP_DISCARD is defined */
	/* #undef HAVE_REQ_OP_DISCARD */

	/* REQ_OP_FLUSH is defined */
	/* #undef HAVE_REQ_OP_FLUSH */

	/* REQ_OP_SECURE_ERASE is defined */
	/* #undef HAVE_REQ_OP_SECURE_ERASE */

	/* REQ_PREFLUSH is defined */
	/* #undef HAVE_REQ_PREFLUSH */

	/* revalidate_disk() is available */
	/* #undef HAVE_REVALIDATE_DISK */

	/* revalidate_disk_size() is available */
	/* #undef HAVE_REVALIDATE_DISK_SIZE */

	/* struct rw_semaphore has member activity */
	/* #undef HAVE_RWSEM_ACTIVITY */

	/* struct rw_semaphore has atomic_long_t member count */
	/* #undef HAVE_RWSEM_ATOMIC_LONG_COUNT */

	/* linux/sched/signal.h exists */
	/* #undef HAVE_SCHED_SIGNAL_HEADER */

	/* Define to 1 if you have the <security/pam_modules.h> header file. */
	#define HAVE_SECURITY_PAM_MODULES_H 1

	/* setattr_prepare() is available */
	/* #undef HAVE_SETATTR_PREPARE */

	/* iops->set_acl() exists */
	/* #undef HAVE_SET_ACL */

	/* set_cached_acl() is usable */
	/* #undef HAVE_SET_CACHED_ACL_USABLE */

	/* struct shrink_control exists */
	/* #undef HAVE_SHRINK_CONTROL_STRUCT */

	/* new shrinker callback wants 2 args */
	/* #undef HAVE_SINGLE_SHRINKER_CALLBACK */

	/* ->count_objects exists */
	/* #undef HAVE_SPLIT_SHRINKER_CALLBACK */

	#if defined(__amd64__) \|\| defined(__i386__)
	/* Define if host toolchain supports SSE */
	#define HAVE_SSE 1

	/* Define if host toolchain supports SSE2 */
	#define HAVE_SSE2 1

	/* Define if host toolchain supports SSE3 */
	#define HAVE_SSE3 1

	/* Define if host toolchain supports SSE4.1 */
	#define HAVE_SSE4_1 1

	/* Define if host toolchain supports SSE4.2 */
	#define HAVE_SSE4_2 1

	/* Define if host toolchain supports SSSE3 */
	#define HAVE_SSSE3 1
	#endif

	/* STACK_FRAME_NON_STANDARD is defined */
	/* #undef HAVE_STACK_FRAME_NON_STANDARD */

	/* Define to 1 if you have the <stdint.h> header file. */
	#define HAVE_STDINT_H 1

	/* Define to 1 if you have the <stdlib.h> header file. */
	#define HAVE_STDLIB_H 1

	/* Define to 1 if you have the <strings.h> header file. */
	#define HAVE_STRINGS_H 1

	/* Define to 1 if you have the <string.h> header file. */
	#define HAVE_STRING_H 1

	/* Define to 1 if you have the `strlcat' function. */
	#define HAVE_STRLCAT 1

	/* Define to 1 if you have the `strlcpy' function. */
	#define HAVE_STRLCPY 1

	/* submit_bio is member of struct block_device_operations */
	/* #undef HAVE_SUBMIT_BIO_IN_BLOCK_DEVICE_OPERATIONS */

	/* super_setup_bdi_name() exits */
	/* #undef HAVE_SUPER_SETUP_BDI_NAME */

	/* super_block->s_user_ns exists */
	/* #undef HAVE_SUPER_USER_NS */

	/* Define to 1 if you have the <sys/stat.h> header file. */
	#define HAVE_SYS_STAT_H 1

	/* Define to 1 if you have the <sys/types.h> header file. */
	#define HAVE_SYS_TYPES_H 1

	/* i_op->tmpfile() exists */
	/* #undef HAVE_TMPFILE */

	/* totalhigh_pages() exists */
	/* #undef HAVE_TOTALHIGH_PAGES */

	/* kernel has totalram_pages() */
	/* #undef HAVE_TOTALRAM_PAGES_FUNC */

	/* Define to 1 if you have the `udev_device_get_is_initialized' function. */
	/* #undef HAVE_UDEV_DEVICE_GET_IS_INITIALIZED */

	/* kernel has __kernel_fpu_* functions */
	/* #undef HAVE_UNDERSCORE_KERNEL_FPU */

	/* Define to 1 if you have the <unistd.h> header file. */
	#define HAVE_UNISTD_H 1

	/* iops->getattr() takes a vfsmount */
	/* #undef HAVE_VFSMOUNT_IOPS_GETATTR */

	/* aops->direct_IO() uses iovec */
	/* #undef HAVE_VFS_DIRECT_IO_IOVEC */

	/* aops->direct_IO() uses iov_iter without rw */
	/* #undef HAVE_VFS_DIRECT_IO_ITER */

	/* aops->direct_IO() uses iov_iter with offset */
	/* #undef HAVE_VFS_DIRECT_IO_ITER_OFFSET */

	/* aops->direct_IO() uses iov_iter with rw and offset */
	/* #undef HAVE_VFS_DIRECT_IO_ITER_RW_OFFSET */

	/* All required iov_iter interfaces are available */
	/* #undef HAVE_VFS_IOV_ITER */

	/* fops->iterate() is available */
	/* #undef HAVE_VFS_ITERATE */

	/* fops->iterate_shared() is available */
	/* #undef HAVE_VFS_ITERATE_SHARED */

	/* fops->readdir() is available */
	/* #undef HAVE_VFS_READDIR */

	/* fops->read/write_iter() are available */
	/* #undef HAVE_VFS_RW_ITERATE */

	/* __vmalloc page flags exists */
	/* #undef HAVE_VMALLOC_PAGE_KERNEL */

	/* yes */
	/* #undef HAVE_WAIT_ON_BIT_ACTION */

	/* wait_queue_entry_t exists */
	/* #undef HAVE_WAIT_QUEUE_ENTRY_T */

	/* wq_head->head and wq_entry->entry exist */
	/* #undef HAVE_WAIT_QUEUE_HEAD_ENTRY */

	/* xattr_handler->get() wants dentry */
	/* #undef HAVE_XATTR_GET_DENTRY */

	/* xattr_handler->get() wants both dentry and inode */
	/* #undef HAVE_XATTR_GET_DENTRY_INODE */

	/* xattr_handler->get() wants xattr_handler */
	/* #undef HAVE_XATTR_GET_HANDLER */

	/* xattr_handler has name */
	/* #undef HAVE_XATTR_HANDLER_NAME */

	/* xattr_handler->list() wants dentry */
	/* #undef HAVE_XATTR_LIST_DENTRY */

	/* xattr_handler->list() wants xattr_handler */
	/* #undef HAVE_XATTR_LIST_HANDLER */

	/* xattr_handler->list() wants simple */
	/* #undef HAVE_XATTR_LIST_SIMPLE */

	/* xattr_handler->set() wants dentry */
	/* #undef HAVE_XATTR_SET_DENTRY */

	/* xattr_handler->set() wants both dentry and inode */
	/* #undef HAVE_XATTR_SET_DENTRY_INODE */

	/* xattr_handler->set() wants xattr_handler */
	/* #undef HAVE_XATTR_SET_HANDLER */

	/* Define if you have [z] */
	#define HAVE_ZLIB 1

	/* __posix_acl_chmod() exists */
	/* #undef HAVE___POSIX_ACL_CHMOD */

	/* kernel exports FPU functions */
	/* #undef KERNEL_EXPORTS_X86_FPU */

	/* Define to the sub-directory where libtool stores uninstalled libraries. */
	#define LT_OBJDIR ".libs/"

	/* make_request_fn() return type */
	/* #undef MAKE_REQUEST_FN_RET */

	/* hardened module_param_call */
	/* #undef MODULE_PARAM_CALL_CONST */

	/* struct shrink_control has nid */
	/* #undef SHRINK_CONTROL_HAS_NID */

	/* Defined for legacy compatibility. */
	#define SPL_META_ALIAS ZFS_META_ALIAS

	/* Defined for legacy compatibility. */
	#define SPL_META_RELEASE ZFS_META_RELEASE

	/* Defined for legacy compatibility. */
	#define SPL_META_VERSION ZFS_META_VERSION

	/* True if ZFS is to be compiled for a FreeBSD system */
	#define SYSTEM_FREEBSD 1

	/* True if ZFS is to be compiled for a Linux system */
	/* #undef SYSTEM_LINUX */

	/* zfs debugging enabled */
	/* #undef ZFS_DEBUG */

	/* /dev/zfs minor */
	/* #undef ZFS_DEVICE_MINOR */

	/* enum node_stat_item contains NR_FILE_PAGES */
	/* #undef ZFS_ENUM_NODE_STAT_ITEM_NR_FILE_PAGES */

	/* enum node_stat_item contains NR_INACTIVE_ANON */
	/* #undef ZFS_ENUM_NODE_STAT_ITEM_NR_INACTIVE_ANON */

	/* enum node_stat_item contains NR_INACTIVE_FILE */
	/* #undef ZFS_ENUM_NODE_STAT_ITEM_NR_INACTIVE_FILE */

	/* enum zone_stat_item contains NR_FILE_PAGES */
	/* #undef ZFS_ENUM_ZONE_STAT_ITEM_NR_FILE_PAGES */

	/* enum zone_stat_item contains NR_INACTIVE_ANON */
	/* #undef ZFS_ENUM_ZONE_STAT_ITEM_NR_INACTIVE_ANON */

	/* enum zone_stat_item contains NR_INACTIVE_FILE */
	/* #undef ZFS_ENUM_ZONE_STAT_ITEM_NR_INACTIVE_FILE */

	/* global_node_page_state() exists */
	/* #undef ZFS_GLOBAL_NODE_PAGE_STATE */

	/* global_zone_page_state() exists */
	/* #undef ZFS_GLOBAL_ZONE_PAGE_STATE */

	/* Define to 1 if GPL-only symbols can be used */
	/* #undef ZFS_IS_GPL_COMPATIBLE */

	/* Define the project alias string. */
	-#define ZFS_META_ALIAS "zfs-2.1.99-FreeBSD_g75b4cbf62"
	+#define ZFS_META_ALIAS "zfs-2.1.99-FreeBSD_gafa7b3484"

	/* Define the project author. */
	#define ZFS_META_AUTHOR "OpenZFS"

	/* Define the project release date. */
	/* #undef ZFS_META_DATA */

	/* Define the maximum compatible kernel version. */
	#define ZFS_META_KVER_MAX "5.11"

	/* Define the minimum compatible kernel version. */
	#define ZFS_META_KVER_MIN "3.10"

	/* Define the project license. */
	#define ZFS_META_LICENSE "CDDL"

	/* Define the libtool library 'age' version information. */
	/* #undef ZFS_META_LT_AGE */

	/* Define the libtool library 'current' version information. */
	/* #undef ZFS_META_LT_CURRENT */

	/* Define the libtool library 'revision' version information. */
	/* #undef ZFS_META_LT_REVISION */

	/* Define the project name. */
	#define ZFS_META_NAME "zfs"

	/* Define the project release. */
	-#define ZFS_META_RELEASE "FreeBSD_g75b4cbf62"
	+#define ZFS_META_RELEASE "FreeBSD_gafa7b3484"

	/* Define the project version. */
	#define ZFS_META_VERSION "2.1.99"

	/* count is located in percpu_ref.data */
	/* #undef ZFS_PERCPU_REF_COUNT_IN_DATA */

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