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Brian Behlendorf c30e716c81 Fix MMP write frequency for large pools 
When a single pool contains more vdevs than the CONFIG_HZ for
for the kernel the mmp thread will not delay properly.  Switch
to using cv_timedwait_sig_hires() to handle higher resolution
delays.

This issue was reported on Arch Linux where HZ defaults to only
100 and this could be fairly easily reproduced with a reasonably
large pool.  Most distribution kernels set CONFIG_HZ=250 or
CONFIG_HZ=1000 and thus are unlikely to be impacted.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: Olaf Faaland <faaland1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7205
Closes #7289
2018-03-14 16:10:38 -07:00
.github Update codecov.yml 2018-03-14 16:10:36 -07:00
cmd Fix some typos 2018-03-14 16:10:38 -07:00
config Fix zfs-kmod builds when using rpm >= 4.14 2018-03-14 16:10:38 -07:00
contrib Fix some typos 2018-03-14 16:10:38 -07:00
etc Allow modprobe to fail when called within systemd 2018-03-14 16:10:37 -07:00
include Linux 4.16 compat: get_disk_and_module() 2018-03-14 16:10:38 -07:00
lib Fix MMP write frequency for large pools 2018-03-14 16:10:38 -07:00
man Change checksum & IO delay ratelimit values 2018-03-14 16:10:38 -07:00
module Fix MMP write frequency for large pools 2018-03-14 16:10:38 -07:00
rpm Fix systemd_ RPM macros usage on Debian-based distributions 2018-03-14 16:10:36 -07:00
scripts Fix free memory calculation on v3.14+ 2018-03-14 16:10:37 -07:00
tests zdb and inuse tests don't pass with real disks 2018-03-14 16:10:38 -07:00
udev Fix spelling 2017-01-03 11:31:18 -06:00
.gitignore Add configure option to enable gcov analysis 2018-03-14 16:10:36 -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 Take user namespaces into account in policy checks 2018-03-14 16:10:38 -07:00
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 Add support for "--enable-code-coverage" option 2018-03-14 16:10:36 -07:00
META Tag zfs-0.7.6 2018-02-01 10:02:58 -08:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
README.markdown Update codecov.yml 2018-03-14 16:10:36 -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

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.

codecov

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.