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Matthew Ahrens 944a37248a predictive prefetch disabled on new pools until export/reboot 
When a pool is initially created (by `zpool create`), predictive
prefetch is inadvertently disabled, until the pool is export/import-ed,
or the machine is rebooted.

When device removal was introduced, we added some code to disable
predictive prefetching until indirect vdevs have been loaded.  This
resulted in the "default state" of prefetch being disabled, until we
proactively enable it after indirect vdevs are loaded.  Unfortunately
this resulted in a few bugs where in some code paths we neglect to
enable predictive prefetch.  The first of these was fixed by
20507534d4

This commit fixes another case where we also need to explicitly enable
predictive prefetch, when the pool is initially created.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #8577
2019-04-05 10:12:02 -07:00
.github Update CONTRIBUTING to point users to IRC as well as mailing list 2019-03-13 11:57:57 -07:00
cmd Restrict kstats and print real pointers 2019-04-04 18:57:06 -07:00
config Add TRIM support 2019-03-29 09:13:20 -07:00
contrib Move dracut specifics to dracut module 2019-04-02 17:14:39 -07:00
etc Move dracut specifics to dracut module 2019-04-02 17:14:39 -07:00
include Restrict kstats and print real pointers 2019-04-04 18:57:06 -07:00
lib Restrict kstats and print real pointers 2019-04-04 18:57:06 -07:00
man Hint about zpool free vs zfs available 2019-04-04 10:00:16 -07:00
module predictive prefetch disabled on new pools until export/reboot 2019-04-05 10:12:02 -07:00
rpm Add diffutils dependency for dkms build 2019-02-20 10:04:05 -08:00
scripts OpenZFS 9185 - Enable testing over NFS in ZFS performance tests 2019-02-04 09:27:37 -08:00
tests features.kernel layout should match features.pool 2019-04-04 19:00:55 -07:00
udev Add enclosure_symlinks option to vdev_id 2018-12-14 17:27:49 -08:00
.gitignore git ignore python 3.7 virtual environment directories 2019-03-25 15:05:26 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
.travis.yml Add .travis.yml 2017-11-13 09:18:18 -08:00
AUTHORS Update build system and packaging 2018-05-29 16:00:33 -07:00
autogen.sh Cause autogen.sh to fail if autoreconf fails 2018-07-06 09:27:37 -07:00
configure.ac Add TRIM support 2019-03-29 09:13:20 -07:00
copy-builtin Allow copy-builtin to work with modified sources 2018-10-17 12:06:05 -07:00
COPYRIGHT Update build system and packaging 2018-05-29 16:00:33 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am Verify .gitignore entries 2019-01-15 11:56:29 -08:00
META Tag 0.8.0-rc3 2019-01-14 12:40:42 -08:00
NEWS Add NEWS file 2018-09-18 12:03:47 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md Explicitly state supported Linux versions 2018-05-30 20:11:19 -07:00
TEST Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.md

img

ZFS on Linux is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community.

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Official Resources

Installation

Full documentation for installing ZoL on your favorite Linux distribution can be found at our site.

Contribute & Develop

We have a separate document with contribution guidelines.

Release

ZFS on Linux 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 kernel versions.