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authorBart Van Assche <bart.vanassche@sandisk.com>2016-10-28 17:22:00 -0700
committerJens Axboe <axboe@fb.com>2016-11-02 11:17:24 -0600
commit76765a038f82bcd94584a717e0d7d71442174065 (patch)
treea4dd0bfca392efcbde3c0d9f418d53b66aeeca0e
parent5000630c5a445f61238f85f955550c1601a0c176 (diff)
dm: Use BLK_MQ_S_STOPPED instead of QUEUE_FLAG_STOPPED in blk-mq code
Instead of manipulating both QUEUE_FLAG_STOPPED and BLK_MQ_S_STOPPED in the dm start and stop queue functions, only manipulate the latter flag. Change blk_queue_stopped() tests into blk_mq_queue_stopped(). Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Acked-by: Mike Snitzer <snitzer@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Jens Axboe <axboe@fb.com>
-rw-r--r--drivers/md/dm-rq.c16
1 files changed, 1 insertions, 15 deletions
diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index 315257959fc0..09c958b6f038 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -75,12 +75,6 @@ static void dm_old_start_queue(struct request_queue *q)
static void dm_mq_start_queue(struct request_queue *q)
{
- unsigned long flags;
-
- spin_lock_irqsave(q->queue_lock, flags);
- queue_flag_clear(QUEUE_FLAG_STOPPED, q);
- spin_unlock_irqrestore(q->queue_lock, flags);
-
blk_mq_start_stopped_hw_queues(q, true);
blk_mq_kick_requeue_list(q);
}
@@ -105,16 +99,8 @@ static void dm_old_stop_queue(struct request_queue *q)
static void dm_mq_stop_queue(struct request_queue *q)
{
- unsigned long flags;
-
- spin_lock_irqsave(q->queue_lock, flags);
- if (blk_queue_stopped(q)) {
- spin_unlock_irqrestore(q->queue_lock, flags);
+ if (blk_mq_queue_stopped(q))
return;
- }
-
- queue_flag_set(QUEUE_FLAG_STOPPED, q);
- spin_unlock_irqrestore(q->queue_lock, flags);
blk_mq_stop_hw_queues(q);
}