mirror_zfs/lib/libspl
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
..
asm-generic Use cstyle -cpP in make cstyle check 2016-12-12 10:46:26 -08:00
asm-i386 Fix atomic_sub_64() i386 assembly implementation 2017-02-01 09:36:47 -08:00
asm-x86_64 Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
include Fix MMP write frequency for large pools 2018-03-14 16:10:38 -07:00
getexecname.c Fix coverity defects: CID 150921, 150927 2016-10-14 09:40:08 -07:00
gethrestime.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
gethrtime.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
getmntany.c Compatibilty with glibc-2.23 2017-05-16 17:00:16 -07:00
list.c Add linux libspl support 2010-08-31 13:41:59 -07:00
Makefile.am Fixes for SPARC support 2017-10-16 10:57:55 -07:00
mkdirp.c Set errno for mkdirp() called with NULL path ptr 2014-04-09 13:32:22 -07:00
page.c ABD optimized page allocation code 2016-11-29 14:34:33 -08:00
strlcat.c Add linux libspl support 2010-08-31 13:41:59 -07:00
strlcpy.c Add linux libspl support 2010-08-31 13:41:59 -07:00
strnlen.c Add linux libspl support 2010-08-31 13:41:59 -07:00
timestamp.c Fix zpool iostat -T d 1 on musl 2017-04-12 08:57:46 -07:00
zone.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00