linux-kernel - [PATCH 3/5] null_blk: use __blk_mq_complete

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Message-Id: <1529500964-28429-4-git-send-email-jianchao.w.wang@oracle.com>
Date:   Wed, 20 Jun 2018 21:22:42 +0800
From:   Jianchao Wang <jianchao.w.wang@...cle.com>
To:     axboe@...nel.dk, hch@....de, martin.petersen@...cle.com,
        keith.busch@...el.com, josef@...icpanda.com, ulf.hansson@...aro.org
Cc:     linux-block@...r.kernel.org, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 3/5] null_blk: use __blk_mq_complete_request in timeout path

To regain the capability to prevent normal completion path from
entering a timeout request, blk_mq_mark_rq_complete is introduced
in blk_mq_complete_request. Have to use __blk_mq_complete_request
in timeout path to complete a timeout request.

Signed-off-by: Jianchao Wang <jianchao.w.wang@...cle.com>
---
 drivers/block/null_blk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c
index 7948049..d756539 100644
--- a/drivers/block/null_blk.c
+++ b/drivers/block/null_blk.c
@@ -1428,7 +1428,7 @@ static void null_request_fn(struct request_queue *q)
 static enum blk_eh_timer_return null_timeout_rq(struct request *rq, bool res)
 {
 	pr_info("null: rq %p timed out\n", rq);
-	blk_mq_complete_request(rq);
+	__blk_mq_complete_request(rq);
 	return BLK_EH_DONE;
 }
 
-- 
2.7.4