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blk-mq: blk_mq_requeue_work() doesn't need to save IRQ flags 

We know we're in process context, so don't bother using the
IRQ safe versions of the spin lock.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2017-07-27 08:03:57 -06:00
parent 33027c2bb5
commit 18e9781d44
1 changed files with 2 additions and 3 deletions
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5
block/blk-mq.c
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@ -620,11 +620,10 @@ static void blk_mq_requeue_work(struct work_struct *work)
container_of(work, struct request_queue, requeue_work.work);
LIST_HEAD(rq_list);
struct request *rq, *next;
unsigned long flags;
spin_lock_irqsave(&q->requeue_lock, flags);
spin_lock_irq(&q->requeue_lock);
list_splice_init(&q->requeue_list, &rq_list);
spin_unlock_irqrestore(&q->requeue_lock, flags);
spin_unlock_irq(&q->requeue_lock);
list_for_each_entry_safe(rq, next, &rq_list, queuelist) {
if (!(rq->rq_flags & RQF_SOFTBARRIER))