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Sender: Tejun Heo <htejun@gmail.com>
Date:   Wed, 11 Aug 2021 08:04:31 -1000
From:   Tejun Heo <tj@kernel.org>
To:     Waiman Long <longman@redhat.com>
Cc:     Zefan Li <lizefan.x@bytedance.com>,
        Johannes Weiner <hannes@cmpxchg.org>,
        Jonathan Corbet <corbet@lwn.net>,
        Shuah Khan <shuah@kernel.org>, cgroups@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
        linux-kselftest@vger.kernel.org,
        Andrew Morton <akpm@linux-foundation.org>,
        Roman Gushchin <guro@fb.com>, Phil Auld <pauld@redhat.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Juri Lelli <juri.lelli@redhat.com>,
        Frederic Weisbecker <frederic@kernel.org>,
        Marcelo Tosatti <mtosatti@redhat.com>,
        Michal =?iso-8859-1?Q?Koutn=FD?= <mkoutny@suse.com>
Subject: Re: [PATCH v4 1/6] cgroup/cpuset: Enable event notification when
 partition state changes
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References: <20210811030607.13824-1-longman@redhat.com>
 <20210811030607.13824-2-longman@redhat.com>
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On Tue, Aug 10, 2021 at 11:06:02PM -0400, Waiman Long wrote:
> A valid cpuset partition can become invalid if all its CPUs are offlined
> or somehow removed. This can happen through external events without
> "cpuset.cpus.partition" being touched at all.
> 
> Users that rely on the property of a partition being present do not
> currently have a simple way to get such an event notified other than
> constant periodic polling which is both inefficient and cumbersome.
> 
> To make life easier for those users, event notification is now enabled
> for "cpuset.cpus.partition" whenever its state changes.
> 
> Suggested-by: Tejun Heo <tj@kernel.org>
> Signed-off-by: Waiman Long <longman@redhat.com>

Applied to cgroup/for-5.15.

Thanks.

-- 
tejun