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authorChristoph Hellwig <hch@lst.de>2018-11-16 09:10:04 +0100
committerJens Axboe <axboe@kernel.dk>2018-11-16 09:17:00 -0700
commitb2101f655f8f6bd510154364e24d1cdba037133f (patch)
tree427c4be5d2bd82716cef1217e415260c26bba7fb /drivers/ide
parenta50f9aec1ac713dd25f1b1b443d97aa2fc69f740 (diff)
downloadlinux-b2101f655f8f6bd510154364e24d1cdba037133f.tar.gz
ide: don't acquire queue lock in ide_pm_execute_rq
There is nothing we can synchronize against over a call to
blk_queue_dying.

Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/ide')
-rw-r--r--drivers/ide/ide-pm.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c
index 51fe10ac02fa..56690f523100 100644
--- a/drivers/ide/ide-pm.c
+++ b/drivers/ide/ide-pm.c
@@ -44,15 +44,12 @@ static int ide_pm_execute_rq(struct request *rq)
 {
 	struct request_queue *q = rq->q;
 
-	spin_lock_irq(&q->queue_lock);
 	if (unlikely(blk_queue_dying(q))) {
 		rq->rq_flags |= RQF_QUIET;
 		scsi_req(rq)->result = -ENXIO;
-		spin_unlock_irq(&q->queue_lock);
 		blk_mq_end_request(rq, BLK_STS_OK);
 		return -ENXIO;
 	}
-	spin_unlock_irq(&q->queue_lock);
 	blk_execute_rq(q, NULL, rq, true);
 
 	return scsi_req(rq)->result ? -EIO : 0;