linux-kernel - [PATCH] elevator: add fall through comment

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Date:   Fri, 13 Jan 2017 23:17:11 +0800
From:   Geliang Tang <geliangtang@...il.com>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     Geliang Tang <geliangtang@...il.com>, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] elevator: add fall through comment

Add fall through comment for ELEVATOR_INSERT_SORT_MERGE.

Signed-off-by: Geliang Tang <geliangtang@...il.com>
---
 block/elevator.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/block/elevator.c b/block/elevator.c
index 40f0c04..6db8f89 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -638,6 +638,7 @@ void __elv_add_request(struct request_queue *q, struct request *rq, int where)
 		 */
 		if (elv_attempt_insert_merge(q, rq))
 			break;
+		/* Fall through */
 	case ELEVATOR_INSERT_SORT:
 		BUG_ON(rq->cmd_type != REQ_TYPE_FS);
 		rq->rq_flags |= RQF_SORTED;
-- 
2.9.3