diff options
| author | Shaohua Li <shli@fb.com> | 2017-12-01 12:12:34 -0800 |
|---|---|---|
| committer | Shaohua Li <shli@fb.com> | 2017-12-01 12:19:48 -0800 |
| commit | 18022a1bd3709b74ca31ef0b28fccd52bcd6c504 (patch) | |
| tree | e3d3fe238bd4397f503adca6dac7688e8feb933e /drivers/md/raid10.c | |
| parent | d2e2ec8222b4cb49c59f6dc6f5c4fe6fb4c80de9 (diff) | |
md/raid1/10: add missed blk plug
flush_pending_writes isn't always called with block plug, so add it, and plug
works in nested way.
Signed-off-by: Shaohua Li <shli@fb.com>
Diffstat (limited to 'drivers/md/raid10.c')
| -rw-r--r-- | drivers/md/raid10.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index b9edbc747a95..c131835cf008 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -894,10 +894,13 @@ static void flush_pending_writes(struct r10conf *conf) spin_lock_irq(&conf->device_lock); if (conf->pending_bio_list.head) { + struct blk_plug plug; struct bio *bio; + bio = bio_list_get(&conf->pending_bio_list); conf->pending_count = 0; spin_unlock_irq(&conf->device_lock); + blk_start_plug(&plug); /* flush any pending bitmap writes to disk * before proceeding w/ I/O */ bitmap_unplug(conf->mddev->bitmap); @@ -918,6 +921,7 @@ static void flush_pending_writes(struct r10conf *conf) generic_make_request(bio); bio = next; } + blk_finish_plug(&plug); } else spin_unlock_irq(&conf->device_lock); } |