diff mbox series

[v2,4/6] blk-mq: delete superfluous check in iterate callback

Message ID 20230823090441.3986631-5-chengming.zhou@linux.dev (mailing list archive)
State New, archived
Headers show
Series blk-mq-tag: remove bt_for_each() | expand

Commit Message

Chengming Zhou Aug. 23, 2023, 9:04 a.m. UTC 
From: Chengming Zhou <zhouchengming@bytedance.com>

The previous patch in this series changed the behavior of
blk_mq_queue_tag_busy_iter() from iterating over all allocated tags into
iterating over started requests only. Leave out the code from
blk_mq_rq_inflight() that became superfluous because of this change.

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

Comments

Bart Van Assche Aug. 23, 2023, 2:40 p.m. UTC | #1 
On 8/23/23 02:04, chengming.zhou@linux.dev wrote:
> The previous patch in this series changed the behavior of
> blk_mq_queue_tag_busy_iter() from iterating over all allocated tags into
> iterating over started requests only. Leave out the code from
> blk_mq_rq_inflight() that became superfluous because of this change.

Reviewed-by: Bart Van Assche <bvanassche@acm.org>
diff mbox series

Patch

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 953f08354c8c..f1bafbae0a61 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1516,19 +1516,15 @@  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)