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Serapheim Dimitropoulos 7558997d2f vs_alloc can underflow in L2ARC vdevs 
The current L2 ARC device code consistently uses psize to
increment vs_alloc but varies between psize and lsize when
decrementing it. The result of this behavior is that
vs_alloc can be decremented more that it is incremented
and underflow. This patch changes the code so asize is
used anywhere.

In addition, it ensures that vs_alloc gets incremented by
the L2 ARC device code as buffers are written and not at
the end of the l2arc_write_buffers() routine. The latter
(and old) way would temporarily underflow vs_alloc as
buffers that were just written, would be destroyed while
l2arc_write_buffers() was still looping.

Reviewed-by: Matt Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Serapheim Dimitropoulos <serapheim@delphix.com>
Closes #8298
2019-01-31 09:16:39 -08:00
.github Bump commit subject length to 72 characters 2019-01-08 09:23:05 -08:00
cmd zdb -L should skip leak detection altogether 2019-01-30 09:54:27 -08:00
config Linux 5.0 compat: Fix bio_set_dev() 2019-01-28 10:11:45 -08:00
contrib Add contrib/pyzfs/setup.py to .gitignore 2019-01-13 10:04:38 -08:00
etc Add enclosure_symlinks option to vdev_id 2018-12-14 17:27:49 -08:00
include Linux 5.0 compat: Disable vector instructions on 5.0+ kernels 2019-01-28 10:11:45 -08:00
lib Include third party licenses in dist tarballs 2019-01-08 09:29:34 -08:00
man zdb -L should skip leak detection altogether 2019-01-30 09:54:27 -08:00
module vs_alloc can underflow in L2ARC vdevs 2019-01-31 09:16:39 -08:00
rpm Exclude test-runner.py from the rpmbuild shebang check 2019-01-28 10:11:45 -08:00
scripts dkms: Enable debuginfo option to be set with zfs sysconfig file 2019-01-18 10:10:24 -08:00
tests Change target size of metaslabs from 256GB to 16GB 2019-01-25 16:38:27 -08:00
udev Add enclosure_symlinks option to vdev_id 2018-12-14 17:27:49 -08:00
.gitignore Verify .gitignore entries 2019-01-15 11:56:29 -08:00
.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 Use ZFS version for pyzfs & drop unused reqs file 2019-01-08 15:56:42 -08:00
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

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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.