dm: run queue on re-queue

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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 7eaceaccab
("block: remove per-queue plugging"), which replaced conditional
plugging by periodic runqueue.

Commit 9d1deb83d4 in v4.1-rc1 removed the periodic runqueue
and the problem started to manifest.

Fixes: 9d1deb83d4 ("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>

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Junichi Nomura 2015-05-26 08:25:54 +00:00 • committed by Mike Snitzer

parent ba155e2d21

commit 4ae9944d13

1 changed files with 1 additions and 0 deletions

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drivers/md/dm.c

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