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| author | Junichi Nomura <j-nomura@ce.jp.nec.com> | 2015-05-26 08:25:54 +0000 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2015-05-26 09:57:36 -0400 |
| commit | 4ae9944d132b160d444fa3aa875307eb0fa3eeec (patch) | |
| tree | 21d89ca0af832460d364e6feb72fbf5296edc99b /drivers/md/dm.c | |
| parent | ba155e2d21f6bf05de86a78dbe5bfd8757604a65 (diff) | |
| download | linux-4ae9944d132b160d444fa3aa875307eb0fa3eeec.tar.bz2 | |
dm: run queue on re-queue
Without kicking queue, requeued request may stay forever in
the queue if there are no other I/O activities to the device.
The original error had been in v2.6.39 with commit 7eaceaccab5f
("block: remove per-queue plugging"), which replaced conditional
plugging by periodic runqueue.
Commit 9d1deb83d489 in v4.1-rc1 removed the periodic runqueue
and the problem started to manifest.
Fixes: 9d1deb83d489 ("dm: don't schedule delayed run of the queue if nothing to do")
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm.c')
| -rw-r--r-- | drivers/md/dm.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index a930b72314ac..0bf79a0bad37 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1164,6 +1164,7 @@ static void old_requeue_request(struct request *rq) spin_lock_irqsave(q->queue_lock, flags); blk_requeue_request(q, rq); + blk_run_queue_async(q); spin_unlock_irqrestore(q->queue_lock, flags); } |