blk-mq: blk_mq_requeue_work() doesn't need to save IRQ flags
authorJens Axboe <axboe@kernel.dk>
Thu, 27 Jul 2017 14:03:57 +0000 (08:03 -0600)
committerJens Axboe <axboe@kernel.dk>
Sat, 29 Jul 2017 15:00:03 +0000 (09:00 -0600)
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>
block/blk-mq.c

index 041f7b7fa0d6def444e9349b6cf748afc8e89b2d..b70a4ad78b635798d0bfa2e25a7a755827079ac9 100644 (file)
@@ -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))