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dm: use unlocked variants of queue flag check/set

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dm.c already provides mutual exclusion through ->map_lock.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jens Axboe 2008-04-29 19:12:35 +02:00 committed by Linus Torvalds
parent a217656cb2
commit c9a3f6d6f5
1 changed files with 3 additions and 5 deletions
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8
drivers/md/dm-table.c
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@ -873,13 +873,11 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q)
q->max_hw_sectors = t->limits.max_hw_sectors;
q->seg_boundary_mask = t->limits.seg_boundary_mask;
q->bounce_pfn = t->limits.bounce_pfn;
/* XXX: the below will probably go bug. must ensure there can be no
* concurrency on queue_flags, and use the unlocked versions...
*/
if (t->limits.no_cluster)
queue_flag_clear(QUEUE_FLAG_CLUSTER, q);
queue_flag_clear_unlocked(QUEUE_FLAG_CLUSTER, q);
else
queue_flag_set(QUEUE_FLAG_CLUSTER, q);
queue_flag_set_unlocked(QUEUE_FLAG_CLUSTER, q);
}