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Date:   Wed, 4 Oct 2023 08:55:08 -1000
From:   Tejun Heo <tj@...nel.org>
To:     Waiman Long <longman@...hat.com>
Cc:     Zefan Li <lizefan.x@...edance.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,
        Pierre Gondois <pierre.gondois@....com>
Subject: Re: [PATCH-cgroup v2] cgroup/cpuset: Enable invalid to valid local
 partition transition

On Tue, Oct 03, 2023 at 10:44:20AM -0400, Waiman Long wrote:
> When a local partition becomes invalid, it won't transition back to
> valid partition automatically if a proper "cpuset.cpus.exclusive" or
> "cpuset.cpus" change is made. Instead, system administrators have to
> explicitly echo "root" or "isolated" into the "cpuset.cpus.partition"
> file at the partition root.
> 
> This patch now enables the automatic transition of an invalid local
> partition back to valid when there is a proper "cpuset.cpus.exclusive"
> or "cpuset.cpus" change.
> 
> Automatic transition of an invalid remote partition to a valid one,
> however, is not covered by this patch. They still need an explicit
> write to "cpuset.cpus.partition" to become valid again.
> 
> The test_cpuset_prs.sh test script is updated to add new test cases to
> test this automatic state transition.
> 
> Reported-by: Pierre Gondois <pierre.gondois@....com>
> Link: https://lore.kernel.org/lkml/9777f0d2-2fdf-41cb-bd01-19c52939ef42@arm.com
> Signed-off-by: Waiman Long <longman@...hat.com>

Applied to cgroup/for-6.7.

Thanks.

-- 
tejun

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