mirror_zfs/module
Olaf Faaland a74259cea0
Initialize mmp_last_write when the mmp thread starts
A great deal of time may go by between when mmp_init() is called and
the MMP thread starts, particularly if there are bad devices, because
there is I/O checking configs etc.  If this time is too long,

    (gethrtime() - mmp_last_write) > mmp_fail_ns

at the time the MMP thread starts.  If MMP is configured to suspend
the pool, the pool will be suspended immediately.

This can be seen in issue #10838

The value of mmp_last_write doesn't matter before the mmp thread
starts.  To give the MMP thread time to issue and land MMP writes,
initialize mmp_last_write when the MMP thread starts.

Reviewed-by: Giuseppe Di Natale <guss80@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Olaf Faaland <faaland1@llnl.gov>
Closes #10873
2020-09-09 10:12:54 -07:00
..
avl Links in Source Files 2020-09-02 09:42:12 -07:00
icp Prefix zfs internal endian checks with _ZFS 2020-07-28 13:02:49 -07:00
lua Mark lua setjmp/longjmp for powerpc weak 2020-08-25 10:32:49 -07:00
nvpair Links in Source Files 2020-09-02 09:42:12 -07:00
os FreeBSD: drop dependency on cryptodev module 2020-09-09 10:10:32 -07:00
spl Cleanup linux module kbuild files 2020-06-10 09:24:15 -07:00
unicode Prefix zfs internal endian checks with _ZFS 2020-07-28 13:02:49 -07:00
zcommon FreeBSD: disable neon usage 2020-08-26 09:54:37 -07:00
zfs Initialize mmp_last_write when the mmp thread starts 2020-09-09 10:12:54 -07:00
zstd module/zstd: pass -U__BMI__ 2020-08-27 15:50:13 -07:00
.gitignore Cleanup linux module kbuild files 2020-06-10 09:24:15 -07:00
Kbuild.in Add zstd support to zfs 2020-08-20 10:30:06 -07:00
Makefile.bsd module/zstd: pass -U__BMI__ 2020-08-27 15:50:13 -07:00
Makefile.in Add zstd support to zfs 2020-08-20 10:30:06 -07:00