linux-kernel - Re: [PATCH v2 3/5] block, bfq: switch to use elevator lock

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Message-ID: <74d697f7-f013-4067-acd2-e0f080dc51fa@suse.de>
Date: Thu, 31 Jul 2025 08:22:11 +0200
From: Hannes Reinecke <hare@...e.de>
To: Yu Kuai <yukuai1@...weicloud.com>, dlemoal@...nel.org, jack@...e.cz,
 tj@...nel.org, josef@...icpanda.com, axboe@...nel.dk, yukuai3@...wei.com
Cc: cgroups@...r.kernel.org, linux-block@...r.kernel.org,
 linux-kernel@...r.kernel.org, yi.zhang@...wei.com, yangerkun@...wei.com,
 johnny.chenyi@...wei.com
Subject: Re: [PATCH v2 3/5] block, bfq: switch to use elevator lock

On 7/30/25 10:22, Yu Kuai wrote:
> From: Yu Kuai <yukuai3@...wei.com>
> 
> Replace the internal spinlock bfqd->lock with the new spinlock in
> elevator_queue. There are no functional changes.
> 
> Signed-off-by: Yu Kuai <yukuai3@...wei.com>
> ---
>   block/bfq-cgroup.c   |  4 ++--
>   block/bfq-iosched.c  | 49 +++++++++++++++++++++-----------------------
>   block/bfq-iosched.h  |  2 +-
>   block/blk-mq-sched.c |  4 ++--
>   4 files changed, 28 insertions(+), 31 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@...e.de.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@...e.de                                +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich