linux-kernel - [PATCH v2 for-6.18/block 01/10] blk-mq: remove useless checking in queue_requests

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Message-Id: <20250910080445.239096-2-yukuai1@huaweicloud.com>
Date: Wed, 10 Sep 2025 16:04:36 +0800
From: Yu Kuai <yukuai1@...weicloud.com>
To: axboe@...nel.dk,
	nilay@...ux.ibm.com,
	ming.lei@...hat.com
Cc: linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	yukuai3@...wei.com,
	yi.zhang@...wei.com,
	yangerkun@...wei.com,
	johnny.chenyi@...wei.com
Subject: [PATCH v2 for-6.18/block 01/10] blk-mq: remove useless checking in queue_requests_store()

From: Yu Kuai <yukuai3@...wei.com>

blk_mq_queue_attr_visible() already checked queue_is_mq(), no need to
check this again in queue_requests_store().

Signed-off-by: Yu Kuai <yukuai3@...wei.com>
Reviewed-by: Nilay Shroff <nilay@...ux.ibm.com>
---
 block/blk-sysfs.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index c94b8b6ab024..1ffa65feca4f 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -69,9 +69,6 @@ queue_requests_store(struct gendisk *disk, const char *page, size_t count)
 	unsigned int memflags;
 	struct request_queue *q = disk->queue;
 
-	if (!queue_is_mq(q))
-		return -EINVAL;
-
 	ret = queue_var_store(&nr, page, count);
 	if (ret < 0)
 		return ret;
-- 
2.39.2