linux-kernel - Re: [PATCH v4 5/6] cgroup/cpuset: Update description of cpuset.cpus.partition in cgroup-v2.rst

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Date:   Wed, 11 Aug 2021 08:15:39 -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>,
        Jonathan Corbet <corbet@....net>,
        Shuah Khan <shuah@...nel.org>, cgroups@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-kselftest@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Roman Gushchin <guro@...com>, Phil Auld <pauld@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Frederic Weisbecker <frederic@...nel.org>,
        Marcelo Tosatti <mtosatti@...hat.com>,
        Michal Koutný <mkoutny@...e.com>
Subject: Re: [PATCH v4 5/6] cgroup/cpuset: Update description of
 cpuset.cpus.partition in cgroup-v2.rst

Hello,

On Tue, Aug 10, 2021 at 11:06:06PM -0400, Waiman Long wrote:
> +	Poll and inotify events are triggered whenever the state
> +	of "cpuset.cpus.partition" changes.  That includes changes
> +	caused by write to "cpuset.cpus.partition" and cpu hotplug.
> +	This will allow a user space agent to monitor changes caused
> +	by hotplug events.

It might be useful to emphasize that this is the primary mechanism to
signify errors and thus should always be monitored.

Thanks.

-- 
tejun