X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=block%2Fblk-exec.c;h=fb2cbd551621d3f23be57210534ed98417d01489;hb=f5e7e844a571124ffc117d4696787d6afc4fc5ae;hp=a1ebceb332f963ee366aa7ebed60d69c4e1c11cb;hpb=a9e4e6e14c322e08d1c615afc8f504fb415f9613;p=firefly-linux-kernel-4.4.55.git

diff --git a/block/blk-exec.c b/block/blk-exec.c
index a1ebceb332f9..fb2cbd551621 100644
--- a/block/blk-exec.c
+++ b/block/blk-exec.c
@@ -50,7 +50,11 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk,
 {
 	int where = at_head ? ELEVATOR_INSERT_FRONT : ELEVATOR_INSERT_BACK;
 
-	if (unlikely(test_bit(QUEUE_FLAG_DEAD, &q->queue_flags))) {
+	WARN_ON(irqs_disabled());
+	spin_lock_irq(q->queue_lock);
+
+	if (unlikely(blk_queue_dead(q))) {
+		spin_unlock_irq(q->queue_lock);
 		rq->errors = -ENXIO;
 		if (rq->end_io)
 			rq->end_io(rq, rq->errors);
@@ -59,8 +63,6 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk,
 
 	rq->rq_disk = bd_disk;
 	rq->end_io = done;
-	WARN_ON(irqs_disabled());
-	spin_lock_irq(q->queue_lock);
 	__elv_add_request(q, rq, where);
 	__blk_run_queue(q);
 	/* the queue is stopped so it won't be run */