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lidongyang 8d82a19def Call commit callbacks from the tail of the list 
Our zfs backed Lustre MDT had soft lockups while under heavy metadata
workloads while handling transaction callbacks from osd_zfs.

The problem is zfs is not taking advantage of the fast path in
Lustre's trans callback handling, where Lustre will skip the calls
to ptlrpc_commit_replies() when it already saw a higher transaction
number.

This patch corrects this, it also has a positive impact on metadata
performance on Lustre with osd_zfs, plus some cleanup in the headers.

A similar issue for ext4/ldiskfs is described on:
https://jira.hpdd.intel.com/browse/LU-6527

Reviewed-by: Olaf Faaland <faaland1@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Li Dongyang <dongyang.li@anu.edu.au>
Closes #6986
2018-01-30 10:27:31 -06:00
.github Update for cppcheck v1.80 2018-01-30 10:27:31 -06:00
cmd Handle broken pipes in arc_summary 2018-01-30 10:27:31 -06:00
config Support integration with new QAT products 2017-11-20 16:19:23 -06:00
contrib Add /usr/bin/env to COPY_EXEC_LIST initramfs hook 2017-12-04 17:22:36 -08:00
etc Use /sbin/openrc-run for openrc init scripts 2018-01-30 10:27:30 -06:00
include Call commit callbacks from the tail of the list 2018-01-30 10:27:31 -06:00
lib Update for cppcheck v1.80 2018-01-30 10:27:31 -06:00
man zpool(8): Fix "zpool import -t" 2017-12-04 17:21:38 -08:00
module Call commit callbacks from the tail of the list 2018-01-30 10:27:31 -06:00
rpm Tag zfs-0.7.5 2017-12-18 10:57:47 -08:00
scripts OpenZFS 8794 - cstyle generates warnings with recent perl 2018-01-30 10:27:31 -06:00
tests Handle broken pipes in arc_summary 2018-01-30 10:27:31 -06:00
udev Fix spelling 2017-01-03 11:31:18 -06:00
.gitignore Improve gitignore 2017-05-25 10:14:13 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
AUTHORS Add a missing > to AUTHORS 2014-09-02 14:18:53 -07:00
autogen.sh build: do not call boilerplate ourself 2013-04-02 10:55:20 -07:00
configure.ac Add zgenhostid utility script 2017-07-25 13:22:03 -04:00
copy-builtin Allow c99 when building ZFS in the kernel tree 2017-03-27 12:31:15 -07:00
COPYRIGHT Update ZED copyright boilerplate 2015-05-11 15:07:00 -07:00
DISCLAIMER Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
Makefile.am Update for cppcheck v1.80 2018-01-30 10:27:31 -06:00
META Tag zfs-0.7.5 2017-12-18 10:57:47 -08:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
README.markdown Add CONTRIBUTING information and templates 2016-12-09 12:48:12 -07:00
TEST Retire filebench testing 2017-06-01 06:24:28 -07:00
zfs-script-config.sh.in zpool iostat/status -c improvements 2017-06-05 10:52:15 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.markdown

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

ZFS on Linux, which is also known as ZoL, is currently feature complete. It includes fully functional and stable SPA, DMU, ZVOL, and ZPL layers. And it's native!

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.