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dm: reduce the queue delay used in dm_request_fn from 100ms to 10ms
author
Mike Snitzer
<snitzer@redhat.com>
Fri, 6 Mar 2015 03:21:10 +0000
(22:21 -0500)
committer
Mike Snitzer
<snitzer@redhat.com>
Wed, 15 Apr 2015 16:10:13 +0000
(12:10 -0400)
Commit
7eaceaccab
("block: remove per-queue plugging") didn't justify
DM's use of a 100ms delay; such an extended delay is a liability when
there is reason to re-kick the queue.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
drivers/md/dm.c
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diff --git
a/drivers/md/dm.c
b/drivers/md/dm.c
index
6f85428
..
98eb02d
100644
(file)
--- a/
drivers/md/dm.c
+++ b/
drivers/md/dm.c
@@
-1997,7
+1997,7
@@
static void dm_request_fn(struct request_queue *q)
goto out;
delay_and_out:
- blk_delay_queue(q, HZ / 10);
+ blk_delay_queue(q, HZ / 10
0
);
out:
dm_put_live_table(md, srcu_idx);
}