linux-kernel - Re: [PATCH cgroup/for-6.20 v4 4/5] cgroup/cpuset: Don't invalidate sibling partitions on cpuset.cpus conflict

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Message-ID: <2naek52bbrod4wf5dbyq2s3odqswy2urrwzsqxv3ozrtugioaw@sjw5m6gizl33>
Date: Mon, 12 Jan 2026 11:51:08 +0100
From: Michal Koutný <mkoutny@...e.com>
To: Waiman Long <longman@...hat.com>
Cc: Tejun Heo <tj@...nel.org>, Johannes Weiner <hannes@...xchg.org>, 
	Jonathan Corbet <corbet@....net>, Shuah Khan <shuah@...nel.org>, linux-kernel@...r.kernel.org, 
	cgroups@...r.kernel.org, linux-kselftest@...r.kernel.org, linux-doc@...r.kernel.org, 
	Sun Shaojie <sunshaojie@...inos.cn>, Chen Ridong <chenridong@...weicloud.com>, 
	Chen Ridong <chenridong@...wei.com>
Subject: Re: [PATCH cgroup/for-6.20 v4 4/5] cgroup/cpuset: Don't invalidate
 sibling partitions on cpuset.cpus conflict

On Sun, Jan 11, 2026 at 11:08:55PM -0500, Waiman Long <longman@...hat.com> wrote:
> diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
...
> @@ -2632,6 +2641,9 @@ Cpuset Interface Files
>  
>  	The root cgroup is always a partition root and its state cannot
>  	be changed.  All other non-root cgroups start out as "member".
> +	Even though the "cpuset.cpus.exclusive*" control files are not
> +	present in the root cgroup, they are implicitly the same as
> +	"cpuset.cpus".

cpuset.cpus.effective (that one is on root cpuset cg)

(This was likely lost among my v2 comments.)

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