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| author | Shaohua Li | 2016-11-21 19:29:19 +0100 |
|---|---|---|
| committer | Shaohua Li | 2016-11-24 04:30:25 +0100 |
| commit | 034e33f5eda3c61edb838471f69ec42d64e1e94e (patch) | |
| tree | de4cf540bbc599d64105a06a5b7d259363ca8db7 /drivers/md/md.c | |
| parent | raid5-cache: suspend reclaim thread instead of shutdown (diff) | |
| download | kernel-qcow2-linux-034e33f5eda3c61edb838471f69ec42d64e1e94e.tar.gz kernel-qcow2-linux-034e33f5eda3c61edb838471f69ec42d64e1e94e.tar.xz kernel-qcow2-linux-034e33f5eda3c61edb838471f69ec42d64e1e94e.zip | |
md: stop write should stop journal reclaim
__md_stop_writes currently doesn't stop raid5-cache reclaim thread. It's
possible the reclaim thread is still running and doing write, which
doesn't match what __md_stop_writes should do. The extra ->quiesce()
call should not harm any raid types. For raid5-cache, this will
guarantee we reclaim all caches before we update superblock.
Signed-off-by: Shaohua Li <shli@fb.com>
Reviewed-by: NeilBrown <neilb@suse.de>
Cc: Song Liu <songliubraving@fb.com>
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 297757a0ec0c..c7894fbbd8e5 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5517,6 +5517,10 @@ static void __md_stop_writes(struct mddev *mddev) del_timer_sync(&mddev->safemode_timer); + if (mddev->pers && mddev->pers->quiesce) { + mddev->pers->quiesce(mddev, 1); + mddev->pers->quiesce(mddev, 0); + } bitmap_flush(mddev); if (mddev->ro == 0 && |