Re: [RFC PATCH v2 08/17] cgroup: Move debug cgroup to its own file

From	Tejun Heo <tj@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [RFC PATCH v2 08/17] cgroup: Move debug cgroup to its own file
Date	2017-05-19 22:30 +0200
Message-ID	<tIWH7-7pL-7@gated-at.bofh.it> (permalink)
References	(1 earlier) <tHoo9-lZ-1@gated-at.bofh.it> <tIePM-8wt-19@gated-at.bofh.it> <tIw0h-4M2-15@gated-at.bofh.it> <tIVL4-6M1-11@gated-at.bofh.it> <tIVUJ-6R6-17@gated-at.bofh.it>
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Hello,

On Fri, May 19, 2017 at 03:33:14PM -0400, Waiman Long wrote:
> On 05/19/2017 03:21 PM, Tejun Heo wrote:
> > Yeah but it also shows up as an integral part of stable interface
> > rather than e.g. /sys/kernel/debug.  This isn't of any interest to
> > people who aren't developing cgroup core code.  There is no reason to
> > risk growing dependencies on it.
> 
> The debug controller is used to show information relevant to the cgroup
> its css'es are attached to. So it will be very hard to use if we
> relocate to /sys/kernel/debug, for example. Currently, nothing in the
> debug controller other than debug_cgrp_subsys are exported. I don't see
> any risk of having dependency on that controller from other parts of the
> kernel.

Oh, sure, I wasn't suggesting moving it under /sys/kernel/debug but
that we'd want to take extra precautions as we can't.

Thanks.

-- 
tejun

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[RFC PATCH v2 08/17] cgroup: Move debug cgroup to its own file Waiman Long <longman@redhat.com> - 2017-05-15 15:40 +0200
  Re: [RFC PATCH v2 08/17] cgroup: Move debug cgroup to its own file Tejun Heo <tj@kernel.org> - 2017-05-17 23:40 +0200
    Re: [RFC PATCH v2 08/17] cgroup: Move debug cgroup to its own file Waiman Long <longman@redhat.com> - 2017-05-18 17:40 +0200
    Re: [RFC PATCH v2 08/17] cgroup: Move debug cgroup to its own file Waiman Long <longman@redhat.com> - 2017-05-18 18:00 +0200
      Re: [RFC PATCH v2 08/17] cgroup: Move debug cgroup to its own file Tejun Heo <tj@kernel.org> - 2017-05-19 21:30 +0200
        Re: [RFC PATCH v2 08/17] cgroup: Move debug cgroup to its own file Waiman Long <longman@redhat.com> - 2017-05-19 21:40 +0200
          Re: [RFC PATCH v2 08/17] cgroup: Move debug cgroup to its own file Tejun Heo <tj@kernel.org> - 2017-05-19 22:30 +0200

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