♟ avg

devstat_selectdevs: resize dev_select only after copying data out of it

MFC r354349: if_ixv: disable RSS configuration on 82599 and X540 VFs

MFC r354849: hyperv/storvsc: stash a pointer to hv_storvsc_request in ccb

MFC r354638: teach db_nextframe/x86 about [X]xen_intr_upcall interrupt handler

The change looks good to me.
Regarding other topics mentioned, I do not think that the code in stable branches is going away soon.
Also, while I am hopeful that the ZoF code lands before FreeBSD 13, I do not see any harm in improving the current ZFS code before that.
And having plan B is always nice.

MFC r354436: MFV r354377: 10554 Implemented zpool sync command

MFC r354627: db_nextframe/i386: reduce the number of special frame types

MFC r354886: zpool.8: remove a paragraph about quorum disks

This has been tested by Panzura QA.
They could not reproduce the original problem and no regressions were found.

MFC r354619: db_nextframe/amd64: remove TRAP_INTERRUPT frame type

disabled resilver_defer feature leads to looping resilvers

10952 defer new resilvers and misc. resilver-related fixes

10829 zpool-features.5 add missing .RE

11056 vdev_disk_io_start will panic the system if ldi_strategy returns an error.

11051 zfs miscounts BP_IS_EMBEDDED blocks during scan.

10853 spa_sync, vs_alloc can underflow and checkpoint test fixes

10900 Fix estimated scrub completion time

10566 Multiple DVA Scrubbing Fix

10573 define TASKQID_INVALID as (taskq_id)0

10405 Implement ZFS sorted scans

MFV r354383: 10592 misc. metaslab and vdev related ZoL bug fixes

MFV r354382,r354385: 10601 10757 Pool allocation classes

MFC r354212: iicbb: allow longer SCL low timeout and other improvements

zpool.8: remove a paragraph about quorum disks

fix up r354804, resolve merge conflicts in zpool.8

MFC r351812: mpsutil slot set status

MFC r353887: nctgpio: improve performance (latency) of operation

MFC r354205: Remove redundant hw sysctl declaration.

MFC r354183: ow(4): clean up stray white space

MFC r354181: ow(4): protocol timings can now be changed as sysctl-s / tunables

MFC r354180: ow(4): increase regular mode recovery time, t_rec, to 15 us

Committed in rS354849

hyperv/storvsc: stash a pointer to hv_storvsc_request in ccb

MFC r353618,r353625,r353627: MFV r353617: 9425 allow channel programs to be…

fix up r354804, add new ZFS file mmp.c to kernel files

fix up r354804, link zstreamdump with libzfs

MFV r354378,r354379,r354386: 10499 Multi-modifier protection (MMP)

MFC r353039: add ability to set watchdog timeout for a shutdown

MFC r353748: remove wmb() call from x86 cpu_reset()

MFC r353747: vmm: remove a wmb() call

MFC r353636: MFV r353630: 10809 Performance optimization of AVL tree comparator…

MFC r354437: fix zpool list property names

Looks good to me in general.

teach db_nextframe/x86 about [X]xen_intr_upcall interrupt handler

allow NO_CLEAN builds to work after opensolaris_atomic.S removal in r354634

MFC r353381: emulate illumos membar_producer with atomic_thread_fence_rel

Thank you for the comments and suggestions.
I updated the comment per John's suggestion (but the tf formula) and took the path forward suggested by Kostik.

db_nextframe/i386: reduce the number of special frame types

db_nextframe/amd64: remove TRAP_INTERRUPT frame type

In D22303#487872, @kib wrote:

Ok, I think I am convinced enough. As result, I do not like this code even more.
Wouldn't it be much more reliable and simpler if we set %ebp in syscall/trap/interrupt entry code to point to the beginning of struct trapframe ? Then it would just work to get tf as (struct trapframe *)(*fp->f_frame) ?

add a missing header change

MFC r353340,r353340: cleanup of illumos compatibility atomics

MFC r354065: gpioiic: set output after switching to output mode...

MFC r354077,r354078: owc_gpiobus_read_data: add recovery time to the read slot

MFC r354076: owc_gpiobus_read_data: compare times in sbintime_t units

MFC r354069: owc_gpiobus_read_data: disable preemption earlier

revert r354482, checking for XENHVM was a wrong way of checking for Xen

IPI_TRACE is not really supported on xen

fix zpool list property names

MFV r354377: 10554 Implemented zpool sync command

add a note about nctgpio and wbwd move to superio

MFC r353645,r353677: wbwd: move to superio(4) bus

MFC r353643: move nctgpio to superio(4) bus

11770 additional mmp fixes

11541 allocation_classes feature must be enabled to add log device

10570 Need workaround to EFI boot on AMI BIOS

10592 misc. metaslab and vdev related ZoL bug fixes

10601 10757 Pool allocation classes

9521 Add checkpoint field in the default list of the zpool-list man page

8899 zpool list property documentation doesn't match actual behaviour

10701 Correct lock ASSERTs in vdev_label_read/write

10499 Multi-modifier protection (MMP)

10554 Implemented zpool sync command

MFC r353638: MFV r353637: 10844 Serialize ZTHR operations to eliminate races

MFC r353634: MFV r348596: 9689 zfs range lock code should not be zpl-specific

MFC r353616: MFV r353615: 9485 Optimize possible split block search space

fix up r354333, make zfsproc visible to dtrace, rename to system_proc

MFC r353629: MFV r353628: 10842 Mutex leak in dsl_dataset_hold_obj()

MFC r353565,r353568: MFV r353561: 10343 ZoL: Prefix all refcount functions with…

MFC r353726: ddb: use 'textdump dump' instead of 'call doadump'

MFC r353749: buildkernel: always add standard kernel configuration include path

MFC r354067,r354068: ow_temp: drop the lock around a call that can sleep

MFC r353647: itwd(4): driver for watchdog function in ITE Super I/O chips

if_ixv: disable RSS configuration on 82599 and X540 VFs

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avg (Andriy Gapon)User