linux-kernel - Re: [PATCH RFC v2 4/4] block/mq-deadline: introduce min_async

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Message-ID: <f2b95b70-f074-4f58-b03d-5e7fb20f4274@acm.org>
Date: Wed, 18 Dec 2024 10:00:50 -0800
From: Bart Van Assche <bvanassche@....org>
To: Yu Kuai <yukuai1@...weicloud.com>, axboe@...nel.dk,
 akpm@...ux-foundation.org, ming.lei@...hat.com, yang.yang@...o.com,
 osandov@...com, paolo.valente@...aro.org
Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
 yi.zhang@...wei.com, yangerkun@...wei.com, "yukuai (C)" <yukuai3@...wei.com>
Subject: Re: [PATCH RFC v2 4/4] block/mq-deadline: introduce min_async_depth

On 12/17/24 5:14 PM, Yu Kuai wrote:
> I can't make this read-write, because set lower value will cause
> problems for existing elevator, because wake_batch has to be
> updated as well.

Should the request queue perhaps be frozen before wake_batch is updated?

Thanks,

Bart.