linux-kernel - Re: [PATCH RFC v2 5/6] blk-throttle: support to destroy throtl

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Date: Tue, 16 Apr 2024 07:09:27 -1000
From: Tejun Heo <tj@...nel.org>
To: Yu Kuai <yukuai1@...weicloud.com>
Cc: axboe@...nel.dk, chenhuacai@...nel.org, josef@...icpanda.com,
	jhs@...atatu.com, svenjoac@....de, raven@...maw.net,
	pctammela@...atatu.com, qde@...cy.de, zhaotianrui@...ngson.cn,
	linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
	loongarch@...ts.linux.dev, cgroups@...r.kernel.org,
	yi.zhang@...wei.com, yangerkun@...wei.com,
	"yukuai (C)" <yukuai3@...wei.com>
Subject: Re: [PATCH RFC v2 5/6] blk-throttle: support to destroy throtl_data
 when blk-throttle is disabled

Hello,

On Sat, Apr 13, 2024 at 10:06:00AM +0800, Yu Kuai wrote:
> I think that we need find an appropriate time to unload blk-throttle
> other than deleting the gendisk. I also think of adding a new user input
> like "8:0 free" to do this. These are the solutions that I can think of
> for now.

Probably a better interface is for unloading to force blk-throtl to be
deactivated rather than asking the user to nuke all configs.

Thanks.

-- 
tejun