dm: don't schedule delayed run of the queue if nothing to do

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In request-based DM's dm_request_fn(), if blk_peek_request() returns
NULL just return.  Avoids unnecessary blk_delay_queue().

Reported-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

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This commit is contained in:

Mike Snitzer 2015-02-24 20:49:18 -05:00

parent 9a0e609e3f

commit 9d1deb83d4

1 changed files with 1 additions and 1 deletions

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drivers/md/dm.c

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