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freebsd with flexible iflib nic queues
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Mark Johnston cd32b4f5b7 Fix a deadlock in the FreeBSD getpages VOP 
FreeBSD has a per-page "busy" lock which is held when handling a page
fault on a mapped file.  This lock is also acquired when copying data
from the DMU to the page cache in zfs_write().  File range locks are
also acquired in both of these paths, in the opposite order with respect
to the busy lock.

In the getpages VOP, the range lock is only used to determine the extent
of optional read-ahead and read-behind operations.  To resolve the lock
order reversal, modify the getpages VOP to avoid blocking on the range
lock.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Signed-off-by: Mark Johnston <markj@FreeBSD.org>
Closes #10519
2020-07-06 11:53:57 -07:00
.github Move cppcheck suppressions out of .github 2020-06-27 17:40:15 -07:00
cmd Add device rebuild feature 2020-07-03 11:05:50 -07:00
config configure fixes 2020-07-01 09:05:21 -07:00
contrib Add device rebuild feature 2020-07-03 11:05:50 -07:00
etc Fixes for make dist 2020-06-26 14:20:02 -07:00
include Add a "try" operation for range locks 2020-07-06 11:53:31 -07:00
lib Fix atomic_clear_long_excl wrong return 2020-07-06 11:46:17 -07:00
man Add device rebuild feature 2020-07-03 11:05:50 -07:00
module Fix a deadlock in the FreeBSD getpages VOP 2020-07-06 11:53:57 -07:00
rpm pam: implement a zfs_key pam module 2020-06-24 18:45:44 -07:00
scripts Drop unnecessary srcdir paths 2020-06-24 18:20:18 -07:00
tests Add device rebuild feature 2020-07-03 11:05:50 -07:00
udev Fixes for make dist 2020-06-26 14:20:02 -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 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
CODE_OF_CONDUCT.md Add CODE_OF_CONDUCT.md 2019-04-30 10:58:45 -07:00
configure.ac Add device rebuild feature 2020-07-03 11:05:50 -07:00
copy-builtin Move zfs_gitrev.h to build directory 2020-06-24 18:19:28 -07:00
COPYRIGHT Fix typos 2020-06-09 21:24:09 -07:00
cppcheck-suppressions.txt Move cppcheck suppressions out of .github 2020-06-27 17:40:15 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am Mark phony targets as phony. 2020-06-27 17:40:15 -07:00
META Linux 5.7 compat: blk_alloc_queue() 2020-04-09 09:16:46 -07:00
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 Update wiki links with new address 2020-06-03 19:46:31 -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

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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 Linux distribution can be found at the ZoL Site.

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 12-STABLE and 13-CURRENT.