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	diff --git a/etc/default/zfs.in b/etc/default/zfs.in
	index 93d98058ecfb..fb4a1b65e348 100644
	--- a/etc/default/zfs.in
	+++ b/etc/default/zfs.in
	@@ -1,104 +1,110 @@
	-# ZoL userland configuration.
	+# OpenZFS userland configuration.

	# NOTE: This file is intended for sysv init and initramfs.
	# Changing some of these settings may not make any difference on
	# systemd-based setup, e.g. setting ZFS_MOUNT=no will not prevent systemd
	# from launching zfs-mount.service during boot.
	# See: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=901436

	# To enable a boolean setting, set it to yes, on, true, or 1.
	# Anything else will be interpreted as unset.
	# shellcheck disable=SC2034

	+# Run `zfs load-key` during system start?
	+ZFS_LOAD_KEY='yes'
	+
	+# Run `zfs unload-key` during system stop?
	+ZFS_UNLOAD_KEY='no'
	+
	# Run `zfs mount -a` during system start?
	ZFS_MOUNT='yes'

	# Run `zfs unmount -a` during system stop?
	ZFS_UNMOUNT='yes'

	# Run `zfs share -a` during system start?
	# nb: The shareiscsi, sharenfs, and sharesmb dataset properties.
	ZFS_SHARE='yes'

	# Run `zfs unshare -a` during system stop?
	ZFS_UNSHARE='yes'

	# By default, a verbatim import of all pools is performed at boot based on the
	# contents of the default zpool cache file. The contents of the cache are
	# managed automatically by the 'zpool import' and 'zpool export' commands.
	#
	# By setting this to 'yes', the system will instead search all devices for
	# pools and attempt to import them all at boot, even those that have been
	# exported. Under this mode, the search path can be controlled by the
	# ZPOOL_IMPORT_PATH variable and a list of pools that should not be imported
	# can be listed in the ZFS_POOL_EXCEPTIONS variable.
	#
	# Note that importing all visible pools may include pools that you don't
	# expect, such as those on removable devices and SANs, and those pools may
	# proceed to mount themselves in places you do not want them to. The results
	# can be unpredictable and possibly dangerous. Only enable this option if you
	# understand this risk and have complete physical control over your system and
	# SAN to prevent the insertion of malicious pools.
	ZPOOL_IMPORT_ALL_VISIBLE='no'

	# Specify specific path(s) to look for device nodes and/or links for the
	# pool import(s). See zpool(8) for more information about this variable.
	# It supersedes the old USE_DISK_BY_ID which indicated that it would only
	# try '/dev/disk/by-id'.
	# The old variable will still work in the code, but is deprecated.
	#ZPOOL_IMPORT_PATH="/dev/disk/by-vdev:/dev/disk/by-id"

	# List of pools that should NOT be imported at boot
	# when ZPOOL_IMPORT_ALL_VISIBLE is 'yes'.
	# This is a space separated list.
	#ZFS_POOL_EXCEPTIONS="test2"

	# Should the datasets be mounted verbosely?
	# A mount counter will be used when mounting if set to 'yes'.
	VERBOSE_MOUNT='no'

	# Should we allow overlay mounts?
	# This is standard in Linux, but not ZFS which comes from Solaris where this
	# is not allowed).
	DO_OVERLAY_MOUNTS='no'

	# Any additional option to the 'zfs import' commandline?
	# Include '-o' for each option wanted.
	# You don't need to put '-f' in here, unless you want it ALL the time.
	# Using the option 'zfsforce=1' on the grub/kernel command line will
	# do the same, but on a case-to-case basis.
	ZPOOL_IMPORT_OPTS=""

	# Full path to the ZFS cache file?
	# See "cachefile" in zpool(8).
	# The default is "@sysconfdir@/zfs/zpool.cache".
	#ZPOOL_CACHE="@sysconfdir@/zfs/zpool.cache"
	#
	# Setting ZPOOL_CACHE to an empty string ('') AND setting ZPOOL_IMPORT_OPTS to
	# "-c @sysconfdir@/zfs/zpool.cache" will _enforce_ the use of a cache file.
	# This is needed in some cases (extreme amounts of VDEVs, multipath etc).
	# Generally, the use of a cache file is usually not recommended on Linux
	# because it sometimes is more trouble than it's worth (laptops with external
	# devices or when/if device nodes changes names).
	#ZPOOL_IMPORT_OPTS="-c @sysconfdir@/zfs/zpool.cache"
	#ZPOOL_CACHE=""

	# Any additional option to the 'zfs mount' command line?
	# Include '-o' for each option wanted.
	MOUNT_EXTRA_OPTIONS=""

	# Build kernel modules with the --enable-debug switch?
	# Only applicable for Debian GNU/Linux {dkms,initramfs}.
	ZFS_DKMS_ENABLE_DEBUG='no'

	# Build kernel modules with the --enable-debuginfo switch?
	# Only applicable for Debian GNU/Linux {dkms,initramfs}.
	ZFS_DKMS_ENABLE_DEBUGINFO='no'

	# Keep debugging symbols in kernel modules?
	# Only applicable for Debian GNU/Linux {dkms,initramfs}.
	ZFS_DKMS_DISABLE_STRIP='no'

	# Optional arguments for the ZFS Event Daemon (ZED).
	# See zed(8) for more information on available options.
	#ZED_ARGS="-M"
	diff --git a/etc/init.d/.gitignore b/etc/init.d/.gitignore
	index 43a673d55343..b3402f831806 100644
	--- a/etc/init.d/.gitignore
	+++ b/etc/init.d/.gitignore
	@@ -1,5 +1,6 @@
	zfs-import
	+zfs-load-key
	zfs-mount
	zfs-share
	zfs-zed
	zfs
	diff --git a/etc/init.d/Makefile.am b/etc/init.d/Makefile.am
	index f93af1fd77e0..658623fda4aa 100644
	--- a/etc/init.d/Makefile.am
	+++ b/etc/init.d/Makefile.am
	@@ -1,10 +1,10 @@
	include $(top_srcdir)/config/Substfiles.am
	include $(top_srcdir)/config/Shellcheck.am

	EXTRA_DIST += README.md

	-init_SCRIPTS = zfs-import zfs-mount zfs-share zfs-zed
	+init_SCRIPTS = zfs-import zfs-load-key zfs-mount zfs-share zfs-zed

	SUBSTFILES += $(init_SCRIPTS)

	SHELLCHECK_SHELL = dash # local variables
	diff --git a/etc/init.d/README.md b/etc/init.d/README.md
	index c14b01937db2..f417b24c5923 100644
	--- a/etc/init.d/README.md
	+++ b/etc/init.d/README.md
	@@ -1,72 +1,75 @@
	DESCRIPTION
	These script were written with the primary intention of being portable and
	usable on as many systems as possible.

	This is, in practice, usually not possible. But the intention is there.
	And it is a good one.

	They have been tested successfully on:

	* Debian GNU/Linux Wheezy
	* Debian GNU/Linux Jessie
	* Ubuntu Trusty
	* CentOS 6.0
	* CentOS 6.6
	* Gentoo

	SUPPORT
	If you find that they don't work for your platform, please report this
	at the OpenZFS issue tracker at https://github.com/openzfs/zfs/issues.

	Please include:

	* Distribution name
	* Distribution version
	* Where to find an install CD image
	* Architecture

	If you have code to share that fixes the problem, that is much better.
	But please remember to try your best keep portability in mind. If you
	suspect that what you're writing/modifying won't work on anything else
	than your distribution, please make sure to put that code in appropriate
	if/else/fi code.

	It currently MUST be bash (or fully compatible) for this to work.

	If you're making your own distribution and you want the scripts to
	work on that, the biggest problem you'll (probably) have is the part
	at the beginning of the "zfs-functions" file which sets up the
	logging output.

	INSTALLING INIT SCRIPT LINKS
	To setup the init script links in /etc/rc?.d manually on a Debian GNU/Linux
	(or derived) system, run the following commands (the order is important!):

	- update-rc.d zfs-import start 07 S . stop 07 0 1 6 .
	- update-rc.d zfs-mount start 02 2 3 4 5 . stop 06 0 1 6 .
	- update-rc.d zfs-zed start 07 2 3 4 5 . stop 08 0 1 6 .
	- update-rc.d zfs-share start 27 2 3 4 5 . stop 05 0 1 6 .
	+ update-rc.d zfs-import start 07 S . stop 07 0 1 6 .
	+ update-rc.d zfs-load-key start 02 2 3 4 5 . stop 06 0 1 6 .
	+ update-rc.d zfs-mount start 02 2 3 4 5 . stop 06 0 1 6 .
	+ update-rc.d zfs-zed start 07 2 3 4 5 . stop 08 0 1 6 .
	+ update-rc.d zfs-share start 27 2 3 4 5 . stop 05 0 1 6 .

	To do the same on RedHat, Fedora and/or CentOS:

	chkconfig zfs-import
	+ chkconfig zfs-load-key
	chkconfig zfs-mount
	chkconfig zfs-zed
	chkconfig zfs-share

	On Gentoo:

	rc-update add zfs-import boot
	+ rc-update add zfs-load-key boot
	rc-update add zfs-mount boot
	rc-update add zfs-zed default
	rc-update add zfs-share default

	The idea here is to make sure all of the ZFS filesystems, including possibly
	separate datasets like /var, are mounted before anything else is started.

	Then, ZED, which depends on /var, can be started. It will consume and act
	on events that occurred before it started. ZED may also play a role in
	sharing filesystems in the future, so it is important to start before the
	'share' service.

	Finally, we share filesystems configured with the share\* property.
	diff --git a/etc/init.d/zfs-load-key.in b/etc/init.d/zfs-load-key.in
	new file mode 100755
	index 000000000000..2f8deffdc809
	--- /dev/null
	+++ b/etc/init.d/zfs-load-key.in
	@@ -0,0 +1,131 @@
	+#!@DEFAULT_INIT_SHELL@
	+#
	+# zfs-load-key This script will load/unload the zfs filesystems keys.
	+#
	+# chkconfig: 2345 06 99
	+# description: This script will load or unload the zfs filesystems keys during
	+# system boot/shutdown. Only filesystems with key path set
	+# in keylocation property. See the zfs(8) man page for details.
	+# probe: true
	+#
	+### BEGIN INIT INFO
	+# Provides: zfs-load-key
	+# Required-Start: $local_fs zfs-import
	+# Required-Stop: $local_fs zfs-import
	+# Default-Start: 2 3 4 5
	+# Default-Stop: 0 1 6
	+# X-Start-Before: zfs-mount
	+# X-Stop-After: zfs-zed
	+# Short-Description: Load ZFS keys for filesystems and volumes
	+# Description: Run the `zfs load-key` or `zfs unload-key` commands.
	+### END INIT INFO
	+#
	+# Released under the 2-clause BSD license.
	+#
	+# This script is based on debian/zfsutils.zfs.init from the
	+# Debian GNU/kFreeBSD zfsutils 8.1-3 package, written by Aurelien Jarno.
	+
	+# Source the common init script
	+. @sysconfdir@/zfs/zfs-functions
	+
	+# ----------------------------------------------------
	+
	+do_depend()
	+{
	+ # bootmisc will log to /var which may be a different zfs than root.
	+ before bootmisc logger zfs-mount
	+
	+ after zfs-import sysfs
	+ keyword -lxc -openvz -prefix -vserver
	+}
	+
	+# Load keys for all datasets/filesystems
	+do_load_keys()
	+{
	+ zfs_log_begin_msg "Load ZFS filesystem(s) keys"
	+
	+ "$ZFS" list -Ho name,encryptionroot,keystatus,keylocation \|
	+ while IFS=" " read -r name encryptionroot keystatus keylocation; do
	+ if [ "$encryptionroot" != "-" ] &&
	+ [ "$name" = "$encryptionroot" ] &&
	+ [ "$keystatus" = "unavailable" ] &&
	+ [ "$keylocation" != "prompt" ] &&
	+ [ "$keylocation" != "none" ]
	+ then
	+ zfs_action "Load key for $encryptionroot" \
	+ "$ZFS" load-key "$encryptionroot"
	+ fi
	+ done
	+
	+ zfs_log_end_msg 0
	+
	+ return 0
	+}
	+
	+# Unload keys for all datasets/filesystems
	+do_unload_keys()
	+{
	+ zfs_log_begin_msg "Unload ZFS filesystem(s) key"
	+
	+ "$ZFS" list -Ho name,encryptionroot,keystatus \| sed '1!G;h;$!d' \|
	+ while IFS=" " read -r name encryptionroot keystatus; do
	+ if [ "$encryptionroot" != "-" ] &&
	+ [ "$name" = "$encryptionroot" ] &&
	+ [ "$keystatus" = "available" ]
	+ then
	+ zfs_action "Unload key for $encryptionroot" \
	+ "$ZFS" unload-key "$encryptionroot"
	+ fi
	+ done
	+
	+ zfs_log_end_msg 0
	+
	+ return 0
	+}
	+
	+do_start()
	+{
	+ check_boolean "$ZFS_LOAD_KEY" \|\| exit 0
	+
	+ check_module_loaded "zfs" \|\| exit 0
	+
	+ do_load_keys
	+}
	+
	+do_stop()
	+{
	+ check_boolean "$ZFS_UNLOAD_KEY" \|\| exit 0
	+
	+ check_module_loaded "zfs" \|\| exit 0
	+
	+ do_unload_keys
	+}
	+
	+# ----------------------------------------------------
	+
	+if [ ! -e /sbin/openrc-run ]
	+then
	+ case "$1" in
	+ start)
	+ do_start
	+ ;;
	+ stop)
	+ do_stop
	+ ;;
	+ force-reload\|condrestart\|reload\|restart\|status)
	+ # no-op
	+ ;;
	+ *)
	+ [ -n "$1" ] && echo "Error: Unknown command $1."
	+ echo "Usage: $0 {start\|stop}"
	+ exit 3
	+ ;;
	+ esac
	+
	+ exit $?
	+else
	+ # Create wrapper functions since Gentoo don't use the case part.
	+ depend() { do_depend; }
	+ start() { do_start; }
	+ stop() { do_stop; }
	+fi
	diff --git a/etc/zfs/zfs-functions.in b/etc/zfs/zfs-functions.in
	index a27d4c6cb073..30441dc35d4b 100644
	--- a/etc/zfs/zfs-functions.in
	+++ b/etc/zfs/zfs-functions.in
	@@ -1,429 +1,432 @@
	-# This is a script with common functions etc used by zfs-import, zfs-mount,
	-# zfs-share and zfs-zed.
	+# This is a script with common functions etc used by zfs-import, zfs-load-key,
	+# zfs-mount, zfs-share and zfs-zed.
	#
	# It is _NOT_ to be called independently
	#
	# Released under the 2-clause BSD license.
	#
	# This script is based on debian/zfsutils.zfs.init from the
	# Debian GNU/kFreeBSD zfsutils 8.1-3 package, written by Aurelien Jarno.

	PATH=/sbin:/bin:/usr/bin:/usr/sbin

	# Source function library
	if [ -f /etc/rc.d/init.d/functions ]; then
	# RedHat and derivatives
	. /etc/rc.d/init.d/functions
	elif [ -L /etc/init.d/functions.sh ]; then
	# Gentoo
	. /etc/init.d/functions.sh
	elif [ -f /lib/lsb/init-functions ]; then
	# LSB, Debian, and derivatives
	. /lib/lsb/init-functions
	fi

	# Of course the functions we need are called differently
	# on different distributions - it would be way too easy
	# otherwise!!
	if type log_failure_msg > /dev/null 2>&1 ; then
	# LSB functions - fall through
	zfs_log_begin_msg() { log_begin_msg "$1"; }
	zfs_log_end_msg() { log_end_msg "$1"; }
	zfs_log_failure_msg() { log_failure_msg "$1"; }
	zfs_log_progress_msg() { log_progress_msg "$1"; }
	elif type success > /dev/null 2>&1 ; then
	# Fedora/RedHat functions
	zfs_set_ifs() {
	# For some reason, the init function library have a problem
	# with a changed IFS, so this function goes around that.
	local tIFS="$1"
	if [ -n "$tIFS" ]
	then
	TMP_IFS="$IFS"
	IFS="$tIFS"
	fi
	}

	zfs_log_begin_msg() { printf "%s" "$1 "; }
	zfs_log_end_msg() {
	zfs_set_ifs "$OLD_IFS"
	if [ "$1" -eq 0 ]; then
	success
	else
	failure
	fi
	echo
	zfs_set_ifs "$TMP_IFS"
	}
	zfs_log_failure_msg() {
	zfs_set_ifs "$OLD_IFS"
	failure
	echo
	zfs_set_ifs "$TMP_IFS"
	}
	zfs_log_progress_msg() { printf "%s" "$""$1"; }
	elif type einfo > /dev/null 2>&1 ; then
	# Gentoo functions
	zfs_log_begin_msg() { ebegin "$1"; }
	zfs_log_end_msg() { eend "$1"; }
	zfs_log_failure_msg() { eend "$1"; }
	# zfs_log_progress_msg() { printf "%s" "$1"; }
	zfs_log_progress_msg() { :; }
	else
	# Unknown - simple substitutes.
	zfs_log_begin_msg() { printf "%s" "$1"; }
	zfs_log_end_msg() {
	ret=$1
	if [ "$ret" -ge 1 ]; then
	echo " failed!"
	else
	echo " success"
	fi
	return "$ret"
	}
	zfs_log_failure_msg() { echo "$1"; }
	zfs_log_progress_msg() { printf "%s" "$1"; }
	fi

	# Paths to what we need
	ZFS="@sbindir@/zfs"
	ZED="@sbindir@/zed"
	ZPOOL="@sbindir@/zpool"
	ZPOOL_CACHE="@sysconfdir@/zfs/zpool.cache"

	# Sensible defaults
	+ZFS_LOAD_KEY='yes'
	+ZFS_UNLOAD_KEY='no'
	ZFS_MOUNT='yes'
	ZFS_UNMOUNT='yes'
	ZFS_SHARE='yes'
	ZFS_UNSHARE='yes'

	# Source zfs configuration, overriding the defaults
	if [ -f @initconfdir@/zfs ]; then
	. @initconfdir@/zfs
	fi

	# ----------------------------------------------------

	-export ZFS ZED ZPOOL ZPOOL_CACHE ZFS_MOUNT ZFS_UNMOUNT ZFS_SHARE ZFS_UNSHARE
	+export ZFS ZED ZPOOL ZPOOL_CACHE ZFS_LOAD_KEY ZFS_UNLOAD_KEY ZFS_MOUNT ZFS_UNMOUNT \
	+ ZFS_SHARE ZFS_UNSHARE

	zfs_action()
	{
	local MSG="$1"; shift
	local CMD="$*"
	local ret

	zfs_log_begin_msg "$MSG "
	$CMD
	ret=$?
	if [ "$ret" -eq 0 ]; then
	zfs_log_end_msg $ret
	else
	zfs_log_failure_msg $ret
	fi

	return $ret
	}

	# Returns
	# 0 if daemon has been started
	# 1 if daemon was already running
	# 2 if daemon could not be started
	# 3 if unsupported
	#
	zfs_daemon_start()
	{
	local PIDFILE="$1"; shift
	local DAEMON_BIN="$1"; shift

	if type start-stop-daemon > /dev/null 2>&1 ; then
	# LSB functions
	start-stop-daemon --start --quiet --pidfile "$PIDFILE" \
	--exec "$DAEMON_BIN" --test > /dev/null \|\| return 1

	# shellcheck disable=SC2086
	start-stop-daemon --start --quiet --exec "$DAEMON_BIN" -- \
	"$@" \|\| return 2

	# On Debian, there's a 'sendsigs' script that will
	# kill basically everything quite early and zed is stopped
	# much later than that. We don't want zed to be among them,
	# so add the zed pid to list of pids to ignore.
	if [ -f "$PIDFILE" ] && [ -d /run/sendsigs.omit.d ]
	then
	ln -sf "$PIDFILE" /run/sendsigs.omit.d/zed
	fi
	elif type daemon > /dev/null 2>&1 ; then
	# Fedora/RedHat functions
	# shellcheck disable=SC2086
	daemon --pidfile "$PIDFILE" "$DAEMON_BIN" "$@"
	return $?
	else
	# Unsupported
	return 3
	fi

	return 0
	}

	# Returns
	# 0 if daemon has been stopped
	# 1 if daemon was already stopped
	# 2 if daemon could not be stopped
	# 3 if unsupported
	#
	zfs_daemon_stop()
	{
	local PIDFILE="$1"
	local DAEMON_BIN="$2"
	local DAEMON_NAME="$3"

	if type start-stop-daemon > /dev/null 2>&1 ; then
	# LSB functions
	start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 \
	--pidfile "$PIDFILE" --name "$DAEMON_NAME"
	ret="$?"
	[ "$ret" = 0 ] && rm -f "$PIDFILE"

	return "$ret"
	elif type killproc > /dev/null 2>&1 ; then
	# Fedora/RedHat functions
	killproc -p "$PIDFILE" "$DAEMON_NAME"
	ret="$?"
	[ "$ret" = 0 ] && rm -f "$PIDFILE"

	return "$ret"
	else
	# Unsupported
	return 3
	fi

	return 0
	}

	# Returns status
	zfs_daemon_status()
	{
	local PIDFILE="$1"
	local DAEMON_BIN="$2"
	local DAEMON_NAME="$3"

	if type status_of_proc > /dev/null 2>&1 ; then
	# LSB functions
	status_of_proc "$DAEMON_NAME" "$DAEMON_BIN"
	return $?
	elif type status > /dev/null 2>&1 ; then
	# Fedora/RedHat functions
	status -p "$PIDFILE" "$DAEMON_NAME"
	return $?
	else
	# Unsupported
	return 3
	fi

	return 0
	}

	zfs_daemon_reload()
	{
	local PIDFILE="$1"
	local DAEMON_NAME="$2"

	if type start-stop-daemon > /dev/null 2>&1 ; then
	# LSB functions
	start-stop-daemon --stop --signal 1 --quiet \
	--pidfile "$PIDFILE" --name "$DAEMON_NAME"
	return $?
	elif type killproc > /dev/null 2>&1 ; then
	# Fedora/RedHat functions
	killproc -p "$PIDFILE" "$DAEMON_NAME" -HUP
	return $?
	else
	# Unsupported
	return 3
	fi

	return 0
	}

	zfs_installed()
	{
	if [ ! -x "$ZPOOL" ]; then
	return 1
	else
	# Test if it works (will catch missing/broken libs etc)
	"$ZPOOL" -? > /dev/null 2>&1
	return $?
	fi

	if [ ! -x "$ZFS" ]; then
	return 2
	else
	# Test if it works (will catch missing/broken libs etc)
	"$ZFS" -? > /dev/null 2>&1
	return $?
	fi

	return 0
	}

	# Trigger udev and wait for it to settle.
	udev_trigger()
	{
	if [ -x /sbin/udevadm ]; then
	/sbin/udevadm trigger --action=change --subsystem-match=block
	/sbin/udevadm settle
	elif [ -x /sbin/udevsettle ]; then
	/sbin/udevtrigger
	/sbin/udevsettle
	fi
	}

	# Do a lot of checks to make sure it's 'safe' to continue with the import.
	checksystem()
	{
	if grep -qiE '(^\|[^\\](\\\\)* )zfs=(off\|no\|0)( \|$)' /proc/cmdline;
	then
	# Called with zfs=(off\|no\|0) - bail because we don't
	# want anything import, mounted or shared.
	# HOWEVER, only do this if we're called at the boot up
	# (from init), not if we're running interactively (as in
	# from the shell - we know what we're doing).
	# shellcheck disable=SC2154
	[ -n "$init" ] && exit 3
	fi

	# Check if ZFS is installed.
	zfs_installed \|\| return 5

	# Just make sure that /dev/zfs is created.
	udev_trigger

	return 0
	}

	get_root_pool()
	{
	# shellcheck disable=SC2046
	set -- $(mount \| grep ' on / ')
	[ "$5" = "zfs" ] && echo "${1%%/*}"
	}

	# Check if a variable is 'yes' (any case) or '1'
	# Returns TRUE if set.
	check_boolean()
	{
	local var="$1"

	echo "$var" \| grep -Eiq "^yes$\|^on$\|^true$\|^1$" && return 0 \|\| return 1
	}

	check_module_loaded()
	{
	module="$1"

	[ -r "/sys/module/${module}/version" ] && return 0 \|\| return 1
	}

	load_module()
	{
	module="$1"

	# Load the zfs module stack
	if ! check_module_loaded "$module"; then
	if ! /sbin/modprobe "$module"; then
	return 5
	fi
	fi
	return 0
	}

	# first parameter is a regular expression that filters mtab
	read_mtab()
	{
	local match="$1"
	local fs mntpnt fstype opts rest

	# Unset all MTAB_* variables
	# shellcheck disable=SC2046
	unset $(env \| sed -e '/^MTAB_/!d' -e 's,=.*,,')

	while read -r fs mntpnt fstype opts rest; do
	if echo "$fs $mntpnt $fstype $opts" \| grep -qE "$match"; then
	# * Fix problems (!?) in the mounts file. It will record
	# 'rpool 1' as 'rpool\0401' instead of 'rpool\00401'
	# which seems to be the correct (at least as far as
	# 'printf' is concerned).
	# * We need to use the external echo, because the
	# internal one would interpret the backslash code
	# (incorrectly), giving us a instead.
	mntpnt=$(/bin/echo "$mntpnt" \| sed 's,\\0,\\00,g')
	fs=$(/bin/echo "$fs" \| sed 's,\\0,\\00,')

	# Remove 'unwanted' characters.
	mntpnt=$(printf '%b' "$mntpnt" \| tr -d '/. -')
	fs=$(printf '%b' "$fs")

	# Set the variable.
	eval export "MTAB_$mntpnt=\"$fs\""
	fi
	done < /proc/self/mounts
	}

	in_mtab()
	{
	local mntpnt="$1"
	# Remove 'unwanted' characters.
	mntpnt=$(printf '%b' "$mntpnt" \| tr -d '/. -')
	local var

	var="$(eval echo "MTAB_$mntpnt")"
	[ "$(eval echo "$""$var")" != "" ]
	return "$?"
	}

	# first parameter is a regular expression that filters fstab
	read_fstab()
	{
	local match="$1"
	local i var

	# Unset all FSTAB_* variables
	# shellcheck disable=SC2046
	unset $(env \| sed -e '/^FSTAB_/!d' -e 's,=.*,,')

	i=0
	while read -r fs mntpnt fstype opts; do
	echo "$fs" \| grep -qE '^#\|^$' && continue
	echo "$mntpnt" \| grep -qE '^none\|^swap' && continue
	echo "$fstype" \| grep -qE '^swap' && continue

	if echo "$fs $mntpnt $fstype $opts" \| grep -qE "$match"; then
	eval export "FSTAB_dev_$i=$fs"
	fs=$(printf '%b' "$fs" \| tr '/' '_')
	eval export "FSTAB_$i=$mntpnt"

	i=$((i + 1))
	fi
	done < /etc/fstab
	}

	in_fstab()
	{
	local var

	var="$(eval echo "FSTAB_$1")"
	[ "${var}" != "" ]
	return $?
	}

	is_mounted()
	{
	local mntpt="$1"
	local mp

	while read -r _ mp _; do
	[ "$mp" = "$mntpt" ] && return 0
	done < /proc/self/mounts

	return 1
	}
	diff --git a/rpm/generic/zfs.spec.in b/rpm/generic/zfs.spec.in
	index 4a37ae8ce1d5..25beadce7c1f 100644
	--- a/rpm/generic/zfs.spec.in
	+++ b/rpm/generic/zfs.spec.in
	@@ -1,567 +1,569 @@
	%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-load-key
	/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-load-key
	/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

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