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Allan Jude dc95911d21
zfs list: Allow more fields in ZFS_ITER_SIMPLE mode 
If the fields to be listed and sorted by are constrained to those
populated by dsl_dataset_fast_stat(), then zfs list is much faster,
as it does not need to open each objset and reads its properties.

A previous optimization by Pawel Dawidek
(0cee24064a) took advantage
of this to make listing snapshot names sorted only by name much faster.

However, it was limited to `-o name -s name`, this work extends this
optimization to work with:
  - name
  - guid
  - createtxg
  - numclones
  - inconsistent
  - redacted
  - origin
and could be further extended to any other properties supported by
dsl_dataset_fast_stat() or similar, that do not require extra locking
or reading from disk.

This was committed before (9a9e2e343dfa2af28bf7910de77ae73aa006de62),
but was reverted due to a regression when used with an older kernel.

If the kernel does not populate zc->zc_objset_stats, we now fallback
to getting the properties via the slower interface, to avoid problems
with newer userland and older kernels.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Allan Jude <allan@klarasystems.com>
Closes #14110
2022-12-13 17:27:54 -08:00
.github Retire Ubuntu 18.04 CI builder 2022-11-30 10:25:57 -08:00
cmd zfs list: Allow more fields in ZFS_ITER_SIMPLE mode 2022-12-13 17:27:54 -08:00
config autoconf: add support for openEuler 2022-12-02 17:39:48 -08:00
contrib zfs list: Allow more fields in ZFS_ITER_SIMPLE mode 2022-12-13 17:27:54 -08:00
etc Correct multipathd.target to .service 2022-11-18 11:36:19 -08:00
include zfs list: Allow more fields in ZFS_ITER_SIMPLE mode 2022-12-13 17:27:54 -08:00
lib zfs list: Allow more fields in ZFS_ITER_SIMPLE mode 2022-12-13 17:27:54 -08:00
man zfs.4: Correct the default for zfs_vdev_async_write_max_active 2022-11-28 11:41:14 -08:00
module zfs list: Allow more fields in ZFS_ITER_SIMPLE mode 2022-12-13 17:27:54 -08:00
rpm rpm: add support for openEuler 2022-11-29 09:27:22 -08:00
scripts Ubuntu 22.04 integration: ShellCheck 2022-11-18 11:24:48 -08:00
tests Skip permission checks for extended attributes 2022-12-12 10:21:37 -08:00
udev Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore autoconf: use include directives instead of recursing down cmd 2022-05-10 10:18:38 -07:00
.gitmodules .gitmodules: link to openzfs github repository 2021-04-12 09:37:23 -07:00
AUTHORS zfs_rename: support RENAME_* flags 2022-10-28 09:49:20 -07:00
autogen.sh Ubuntu 22.04 integration: ShellCheck 2022-11-18 11:24:48 -08:00
CODE_OF_CONDUCT.md Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
configure.ac Replace dead opensolaris.org license link 2022-07-11 14:16:13 -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 Process script directory for all configs 2022-10-27 16:45:14 -07:00
META Linux 6.0 compat: META 2022-10-26 14:55:12 -07:00
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 README: Update OpenZFS website url 2022-01-06 16:25:01 -08:00
RELEASES.md Add RELEASES.md file 2021-04-02 16:33:40 -07:00
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

README.md

img

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 12.2-RELEASE.