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

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Message-ID: <ZzajsLHrXXtYk04l@slm.duckdns.org>
Date: Thu, 14 Nov 2024 15:28:16 -1000
From: Tejun Heo <tj@...nel.org>
To: Chen Ridong <chenridong@...weicloud.com>
Cc: Valentin Schneider <vschneid@...hat.com>, mingo@...hat.com,
	peterz@...radead.org, juri.lelli@...hat.com,
	vincent.guittot@...aro.org, dietmar.eggemann@....com,
	rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
	mkoutny@...e.com >> Michal Koutný <mkoutny@...e.com>,
	linux-kernel@...r.kernel.org, wangweiyang2@...wei.com,
	cgroups@...r.kernel.org
Subject: Re: [PATCH] freezer, sched: report the frozen task stat as 'D'

Hello,

On Fri, Nov 15, 2024 at 09:14:32AM +0800, Chen Ridong wrote:
> Hi, Tj, There is no ambiguity what cgroup v2 shows. However, in cgroup
> v1, the frozen tasks are reported as 'R'.  Do you think this is reseanable?

Oh, right, pardon my confusion. I thought this was about cgroup2 freezer.
For cgroup1 freezer, yes, D is the closest state for reporting to userspace.

Thanks.

-- 
tejun