linux-kernel - Re: [PATCH v15 12/12] cpuset: Expose cpuset.cpus.subpartitions with cgroup

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Date:   Thu, 8 Nov 2018 16:46:17 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Waiman Long <longman@...hat.com>
Cc:     Tejun Heo <tj@...nel.org>, Li Zefan <lizefan@...wei.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Ingo Molnar <mingo@...hat.com>, cgroups@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        kernel-team@...com, pjt@...gle.com, luto@...capital.net,
        Mike Galbraith <efault@....de>, torvalds@...ux-foundation.org,
        Roman Gushchin <guro@...com>,
        Juri Lelli <juri.lelli@...hat.com>,
        Patrick Bellasi <patrick.bellasi@....com>,
        Tom Hromatka <tom.hromatka@...cle.com>
Subject: Re: [PATCH v15 12/12] cpuset: Expose cpuset.cpus.subpartitions with
 cgroup_debug

On Thu, Nov 08, 2018 at 10:08:46AM -0500, Waiman Long wrote:
> For debugging purpose, it will be useful to expose the content of the
> subparts_cpus as a read-only file to see if the code work correctly.
> However, subparts_cpus will not be used at all in most use cases. So
> adding a new cpuset file that clutters the cgroup directory may not be
> desirable.  This is now being done by using the hidden "cgroup_debug"
> kernel command line option to expose a new "cpuset.cpus.subpartitions"
> file.

One thought I had; would it make sense to make these debug files hidden
("." prefix) ?