linux-kernel - [PATCH v2 05/10] block, bfq: remove unnecessary dereference to get async

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Date:   Fri, 16 Dec 2022 19:12:25 +0800
From:   Kemeng Shi <shikemeng@...weicloud.com>
To:     jack@...e.cz, paolo.valente@...aro.org, tj@...nel.org,
        josef@...icpanda.com, axboe@...nel.dk
Cc:     cgroups@...r.kernel.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, linfeilong@...wei.com,
        liuzhiqiang@...com, shikemeng@...weicloud.com
Subject: [PATCH v2 05/10] block, bfq: remove unnecessary dereference to get async_bfqq

The async_bfqq is assigned with bfqq->bic->bfqq[0], use it directly.

Signed-off-by: Kemeng Shi <shikemeng@...weicloud.com>
---
 block/bfq-iosched.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index c3c4c83ee95f..ebcafe3c4c3b 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -4835,7 +4835,7 @@ static struct bfq_queue *bfq_select_queue(struct bfq_data *bfqd)
 		    icq_to_bic(async_bfqq->next_rq->elv.icq) == bfqq->bic &&
 		    bfq_serv_to_charge(async_bfqq->next_rq, async_bfqq) <=
 		    bfq_bfqq_budget_left(async_bfqq))
-			bfqq = bfqq->bic->bfqq[0];
+			bfqq = async_bfqq;
 		else if (bfqq->waker_bfqq &&
 			   bfq_bfqq_busy(bfqq->waker_bfqq) &&
 			   bfqq->waker_bfqq->next_rq &&
-- 
2.30.0