linux-kernel - Re: [PATCH] freezer, sched: report the frozen task stat as 'D'

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Message-ID: <j5kjjy5ibp2yw4zhaxc7jm5bw65we4oifhawlljvtjzdox5ck2@kdgpgawwr7kf>
Date: Wed, 11 Dec 2024 17:02:29 +0100
From: Michal Koutný <mkoutny@...e.com>
To: Chen Ridong <chenridong@...weicloud.com>
Cc: Tejun Heo <tj@...nel.org>, peterz@...radead.org, 
	Valentin Schneider <vschneid@...hat.com>, mingo@...hat.com, juri.lelli@...hat.com, 
	vincent.guittot@...aro.org, dietmar.eggemann@....com, rostedt@...dmis.org, 
	bsegall@...gle.com, mgorman@...e.de, linux-kernel@...r.kernel.org, 
	wangweiyang2@...wei.com, cgroups@...r.kernel.org
Subject: Re: [PATCH] freezer, sched: report the frozen task stat as 'D'

Hi.

On Wed, Dec 04, 2024 at 09:52:15AM GMT, Chen Ridong <chenridong@...weicloud.com> wrote:
> Does anyone have any opinions?

When an 'R' task is frozen (v1) and it's shown as (unchanged) 'R' it's
acceptable.
When an 'S' task is equally frozen and its apparent state switches to
'R', I agree it's confusing.

Showing 'D' state in any case of a frozen task (like before that rework)
makes sense too. Please add Fixes: if you need to restore this behavior.

HTH,
Michal

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