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Alexander Motin 1743c737f5
Fix LOR between dp_config_rwlock and spa_props_lock 
Our QE team during automated API testing hit deadlock in ZFS, caused
by lock order reversal.  From one side dsl_sync_task_sync() locks
dp_config_rwlock as writer and calls spa_sync_props(), which waits
for spa_props_lock.  From another spa_prop_get() locks spa_props_lock
and then calls dsl_pool_config_enter(), trying to lock dp_config_rwlock
as reader.

This patch makes spa_prop_get() lock dp_config_rwlock before
spa_props_lock, making the order consistent.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Closes #10553
2020-07-14 12:21:57 -07:00
.github Move cppcheck suppressions out of .github 2020-06-27 17:40:15 -07:00
cmd Remove dependency on sharetab file and refactor sharing logic 2020-07-13 09:19:18 -07:00
config Fix up FIND_SYSTEM_LIBRARY to work with cross-compiling 2020-07-10 14:26:40 -07:00
contrib Use abs_top_builddir when referencing libraries 2020-07-10 14:26:32 -07:00
etc Remove dependency on sharetab file and refactor sharing logic 2020-07-13 09:19:18 -07:00
include Fixing gang ABD child removal race condition 2020-07-14 11:04:35 -07:00
lib Disable -Wl,-z,defs for ASAN builds 2020-07-14 12:17:44 -07:00
man Add device rebuild feature 2020-07-03 11:05:50 -07:00
module Fix LOR between dp_config_rwlock and spa_props_lock 2020-07-14 12:21:57 -07:00
rpm Clean up lib dependencies 2020-07-10 14:26:00 -07:00
scripts Drop unnecessary srcdir paths 2020-06-24 18:20:18 -07:00
tests Remove dependency on sharetab file and refactor sharing logic 2020-07-13 09:19:18 -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 Clean up lib dependencies 2020-07-10 14:26:00 -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 Add Makefile command to run checkbashisms on all /bin/sh scripts 2020-07-09 20:04:49 -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.