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dm: drop unnecessary assignment of md->queue 

md->queue and q are the same thing in dm_old_init_request_queue() and
dm_mq_init_request_queue().

Also drop the temporary 'struct request_queue *q' in
dm_old_init_request_queue().

Signed-off-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Bob Liu 2016-02-24 16:15:38 +08:00 committed by Mike Snitzer
parent 032482fda4
commit e233d800a9
1 changed files with 1 additions and 6 deletions
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7
drivers/md/dm.c
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@ -2654,17 +2654,13 @@ static void dm_old_init_rq_based_worker_thread(struct mapped_device *md)
*/
static int dm_old_init_request_queue(struct mapped_device *md)
{
struct request_queue *q = NULL;
/* Fully initialize the queue */
q = blk_init_allocated_queue(md->queue, dm_request_fn, NULL);
if (!q)
if (!blk_init_allocated_queue(md->queue, dm_request_fn, NULL))
return -EINVAL;
/* disable dm_request_fn's merge heuristic by default */
md->seq_rq_merge_deadline_usecs = 0;
md->queue = q;
dm_init_normal_md_queue(md);
blk_queue_softirq_done(md->queue, dm_softirq_done);
blk_queue_prep_rq(md->queue, dm_old_prep_fn);
@ -2783,7 +2779,6 @@ static int dm_mq_init_request_queue(struct mapped_device *md,
err = PTR_ERR(q);
goto out_tag_set;
}
md->queue = q;
dm_init_md_queue(md);
/* backfill 'mq' sysfs registration normally done in blk_register_queue */