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From: chengming.zhou@linux.dev
To: axboe@kernel.dk, ming.lei@redhat.com, hch@lst.de, bvanassche@acm.org
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
	zhouchengming@bytedance.com
Subject: [PATCH 3/4] blk-mq: delete superfluous check in iterate callback
Date: Mon, 21 Aug 2023 15:35:27 +0800	[thread overview]
Message-ID: <20230821073528.3469210-4-chengming.zhou@linux.dev> (raw)
In-Reply-To: <20230821073528.3469210-1-chengming.zhou@linux.dev>

From: Chengming Zhou <zhouchengming@bytedance.com>

The blk_mq_queue_tag_busy_iter() already has BT_TAG_ITER_STARTED flag
filter set, only started requests will be iterated over.

Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
---
 block/blk-mq.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index f14b8669ac69..0b03963e0854 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1496,19 +1496,15 @@ EXPORT_SYMBOL(blk_mq_delay_kick_requeue_list);
 
 static bool blk_mq_rq_inflight(struct request *rq, void *priv)
 {
+	bool *busy = priv;
+
 	/*
 	 * If we find a request that isn't idle we know the queue is busy
 	 * as it's checked in the iter.
 	 * Return false to stop the iteration.
 	 */
-	if (blk_mq_request_started(rq)) {
-		bool *busy = priv;
-
-		*busy = true;
-		return false;
-	}
-
-	return true;
+	*busy = true;
+	return false;
 }
 
 bool blk_mq_queue_inflight(struct request_queue *q)
-- 
2.41.0


  parent reply	other threads:[~2023-08-21  8:10 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-21  7:35 [PATCH 0/4] blk-mq-tag: remove bt_for_each() chengming.zhou
2023-08-21  7:35 ` [PATCH 1/4] blk-mq-tag: support queue filter in bt_tags_iter() chengming.zhou
2023-08-21 19:58   ` Bart Van Assche
2023-08-22  2:21     ` Chengming Zhou
2023-08-21  7:35 ` [PATCH 2/4] blk-mq-tag: remove bt_for_each() chengming.zhou
2023-08-21 21:26   ` Bart Van Assche
2023-08-22  2:27     ` Chengming Zhou
2023-08-21  7:35 ` chengming.zhou [this message]
2023-08-21 21:29   ` [PATCH 3/4] blk-mq: delete superfluous check in iterate callback Bart Van Assche
2023-08-21  7:35 ` [PATCH 4/4] blk-mq-tag: update or fix functions documentation chengming.zhou
2023-08-21 21:32   ` Bart Van Assche
2023-08-22  2:36     ` Chengming Zhou

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