OpenZFS on Linux and FreeBSD
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Brian Behlendorf f616605821
Linux 5.15 compat: block device readahead
The 5.15 kernel moved the backing_dev_info structure out of
the request queue structure which causes a build failure.

Rather than look in the new location for the BDI we instead
detect this upstream refactoring by the existance of either
the blk_queue_update_readahead() or disk_update_readahead()
functions.  In either case, there's no longer any reason to
manually set the ra_pages value since it will be overridden
with a reasonable default (2x the block size) when
blk_queue_io_opt() is called.

Therefore, we update the compatibility wrapper to do nothing
for 5.9 and newer kernels.  While it's tempting to do the
same for older kernels we want to keep the compatibility
code to preserve the existing behavior.  Removing it would
effectively increase the default readahead to 128k.

Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #12532
2021-09-08 09:03:13 -06:00
.github CI: don't install abigail-tools 2021-09-02 10:02:27 -07:00
cmd Detect iSCSI in the zpool cmd vdev media script 2021-09-02 16:11:53 -07:00
config Linux 5.15 compat: block device readahead 2021-09-08 09:03:13 -06:00
contrib Fix plymouth passphrase prompt with dracut 2021-06-25 22:43:25 -07:00
etc systemd: import: expand $ZPOOL_IMPORT_OPTS correctly 2021-06-14 09:48:53 -06:00
include Linux 5.15 compat: block device readahead 2021-09-08 09:03:13 -06:00
lib Update ABI files via new libabigail version 2021-09-02 10:02:18 -07:00
man Extend zpool-iostat to account for ZIO_PRIORITY_REBUILD (#12319) 2021-08-26 11:26:49 -07:00
module FreeBSD: Don't remove SA xattr if not SA znode 2021-08-30 16:01:09 -07:00
rpm Added uncompress requirement 2021-06-11 09:38:23 -06:00
scripts Add zfs.sh -r flag to reload modules 2021-08-13 13:37:46 -07:00
tests ZTS: Remove exceptions for flaky zhack on FreeBSD 2021-09-01 13:20:00 -07:00
udev Udev rules: remove zvol compat symlinks (without the leading zvol/) 2021-07-06 13:41:17 -07:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
.gitmodules .gitmodules: link to openzfs github repository 2021-04-12 09:37:23 -07:00
AUTHORS Add zstd support to zfs 2020-08-20 10:30:06 -07:00
CODE_OF_CONDUCT.md Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -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
META Linux 5.13 compat: META 2021-06-29 13:16:38 -07:00
Makefile.am Check for libabigail version 2021-09-02 10:01:45 -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 Update FreeBSD versions 2021-03-16 15:03:28 -07:00
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
autogen.sh Cause autogen.sh to fail if autoreconf fails 2018-07-06 09:27:37 -07:00
configure.ac ZTS: Add tests for creation time 2021-08-17 10:25:58 -07:00
copy-builtin copy-builtin: posix conformance 2021-05-08 08:58:26 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.md

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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 12.2-RELEASE.