linux-kernel - Re: [PATCH 01/10] cgroup/cpuset: Fix race between newly created partition and dying one

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Message-ID: <Z-60Ec41f8cQayOg@slm.duckdns.org>
Date: Thu, 3 Apr 2025 06:15:13 -1000
From: Tejun Heo <tj@...nel.org>
To: Michal Koutný <mkoutny@...e.com>
Cc: Waiman Long <longman@...hat.com>, Johannes Weiner <hannes@...xchg.org>,
	Shuah Khan <shuah@...nel.org>, cgroups@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH 01/10] cgroup/cpuset: Fix race between newly created
 partition and dying one

Hello,

On Thu, Apr 03, 2025 at 03:34:05PM +0200, Michal Koutný wrote:
> On Tue, Apr 01, 2025 at 09:49:45PM -1000, Tejun Heo <tj@...nel.org> wrote:
> > On Sun, Mar 30, 2025 at 05:52:39PM -0400, Waiman Long wrote:
> ...
> > > Add a new cpuset_css_killed() function to reset the partition state of
> > > a valid partition root if it is being killed.
> ...
> > 
> > Applied to cgroup/for-6.15-fixes.
> 
> To be on the same page -- Tejun, this is a mistaken message, right?
> css_killed callback is unoptimal way to go.

I couldn't think of a way which is substantially better and so did apply it.
I'm completely open to backtracking for a better idea.

Thanks.

-- 
tejun