From: chengkaitao <chengkaitao@kylinos.cn>
Date: Mon, 15 Sep 2025 12:33:07 +0000 (+0800)
Subject: block/mq-deadline: Remove the redundant rb_entry_rq in the deadline_from_pos().
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=74b1db86847cce1c0fb54d362f8f5fde3adfd41b;p=linux-block.git

block/mq-deadline: Remove the redundant rb_entry_rq in the deadline_from_pos().

In commit(fde02699c242), the "if (blk_rq_is_seq_zoned_write(rq))"
was removed, but the "rb_entry_rq(node)" and some other code were
inadvertently left behind. This patch fixed it.

Signed-off-by: chengkaitao <chengkaitao@kylinos.cn>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Li Nan <linan122@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/block/mq-deadline.c b/block/mq-deadline.c
index 2e689b2c4021..3e741d33142d 100644
--- a/block/mq-deadline.c
+++ b/block/mq-deadline.c
@@ -136,10 +136,6 @@ static inline struct request *deadline_from_pos(struct dd_per_prio *per_prio,
 	struct rb_node *node = per_prio->sort_list[data_dir].rb_node;
 	struct request *rq, *res = NULL;
 
-	if (!node)
-		return NULL;
-
-	rq = rb_entry_rq(node);
 	while (node) {
 		rq = rb_entry_rq(node);
 		if (blk_rq_pos(rq) >= pos) {