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Alexander Motin 135103a648 Defer async destroys on pool import
We've observed a number of cases when pool import stuck for many
minutes due to large async destroy trying to load DDT or BRT from
HDD pool.  While proper destroy dosage is a separate problem,
lets give import process a chance to complete before that at all.
It may be not enough if there is a lot of ZIL to replay, but that
is harder to cover, since those are in separate syscalls.

Code investigation shown that we already have this mechanism used
for scrub/resilver, so this patch converts SCAN_IMPORT_WAIT_TXGS
into a tunable and applies it to async destroys also.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <alexander.motin@TrueNAS.com>
Closes #18033
2026-02-05 13:48:30 -08:00
.github CI: Increase setup timeout to 20min, add timestamps 2026-02-05 13:48:30 -08:00
cmd raidz_test: Restore rand_data protection 2025-12-10 10:21:29 -08:00
config Linux: work around use of GPL-only symbol kasan_flag_enabled 2025-12-10 10:21:29 -08:00
contrib Bump SONAME of libzfs and libzpool 2025-11-12 13:07:28 -08:00
etc docs: fix a few small typos (#17804) 2025-10-21 09:50:43 -07:00
include ZIO: ZIO_STAGE_DDT_WRITE is a blocking stage 2026-02-05 13:48:30 -08:00
lib Fix snapshot automount expiry cancellation deadlock 2025-12-10 10:21:29 -08:00
man Defer async destroys on pool import 2026-02-05 13:48:30 -08:00
module Defer async destroys on pool import 2026-02-05 13:48:30 -08:00
rpm Bump SONAME of libzfs and libzpool 2025-11-12 13:07:28 -08:00
scripts CI: exclude signed-off-by/reviewed-by from 72 char limit 2025-12-10 10:21:29 -08:00
tests ZTS: Fix zvol_misc_fua SLOG writes check 2026-02-05 13:48:30 -08:00
udev zvol_id: make array length properly known at compile time 2025-12-10 10:21:29 -08:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore Packaging: Auto-generate changelog during configure (#15528) 2023-11-16 08:58:47 -08:00
.gitmodules .gitmodules: link to openzfs github repository 2021-04-12 09:37:23 -07:00
.mailmap mailmap/AUTHORS: update with recent new contributors 2025-11-12 13:04:35 -08:00
AUTHORS mailmap/AUTHORS: update with recent new contributors 2025-11-12 13:04:35 -08:00
autogen.sh autogen.sh: remove workaround for automake <1.14, needed for EL <=7 2025-11-12 13:05:16 -08:00
CODE_OF_CONDUCT.md Documentation corrections 2022-12-22 11:34:28 -08:00
configure.ac Linux build: handle CONFIG_OBJTOOL_WERROR=y 2025-06-16 08:12:09 -07:00
copy-builtin copy-builtin: add hooks with sed/>> 2022-05-10 10:17:43 -07:00
COPYRIGHT Fix typos 2020-06-09 21:24:09 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am Install zarcstat and zarcsummary symlinks in Makefile 2025-09-09 17:05:30 -07:00
META Tag 2.4.0 2025-12-18 09:31:29 -08:00
NEWS Fix NEWS file 2020-08-26 21:44:41 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md Fix capitalization typo in README.md 2025-11-12 13:05:35 -08:00
RELEASES.md Update RELEASES.md LTS release to 2.2 2025-01-17 11:04:36 -05:00
TEST Remove CI builder customization from TEST 2020-03-16 10:46:03 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

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OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.

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Official Resources

Installation

Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.

Contribute & Develop

We have a separate document with contribution guidelines.

We have a Code of Conduct.

Release

OpenZFS is released under a CDDL license. For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197

Supported Kernels

  • The META file contains the officially recognized supported Linux kernel versions.
  • Supported FreeBSD versions are any supported branches and releases starting from 13.0-RELEASE.