From: Christoph Hellwig <hch@lst.de>
Date: Sat, 16 May 2020 18:28:00 +0000 (+0200)
Subject: blk-mq: remove a pointless queue enter pair in blk_mq_alloc_request_hctx
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=35b371ff01410ec7c73312f1c1c320de35fcfd0f;p=linux.git

blk-mq: remove a pointless queue enter pair in blk_mq_alloc_request_hctx

No need for two queue references.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 4e62b97dceb48..b1c12de8926e3 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -455,10 +455,7 @@ struct request *blk_mq_alloc_request_hctx(struct request_queue *q,
 	alloc_data.ctx = __blk_mq_get_ctx(q, cpu);
 
 	ret = -EWOULDBLOCK;
-	blk_queue_enter_live(q);
 	rq = blk_mq_get_request(q, NULL, &alloc_data);
-	blk_queue_exit(q);
-
 	if (!rq)
 		goto out_queue_exit;
 	return rq;