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Subject: Re: [RFC PATCH v2 11/17] cgroup: Implement new thread mode semantics
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From: Waiman Long <longman@redhat.com>
Message-ID: <732a13ba-517d-c7d3-56a3-c34b51a8f6fd@redhat.com>
Date: Thu, 1 Jun 2017 16:15:34 -0400
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Sender: owner-linux-mm@kvack.org
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To: Peter Zijlstra <peterz@infradead.org>, Tejun Heo <tj@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>, Johannes Weiner <hannes@cmpxchg.org>, Ingo Molnar <mingo@redhat.com>, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, kernel-team@fb.com, pjt@google.com, luto@amacapital.net, efault@gmx.de

On 06/01/2017 11:10 AM, Peter Zijlstra wrote:
> On Thu, Jun 01, 2017 at 10:50:42AM -0400, Tejun Heo wrote:
>> Hello, Waiman.
>>
>> A short update.  I tried making root special while keeping the
>> existing threaded semantics but I didn't really like it because we
>> have to couple controller enables/disables with threaded
>> enables/disables.  I'm now trying a simpler, albeit a bit more
>> tedious, approach which should leave things mostly symmetrical.  I'm
>> hoping to be able to post mostly working patches this week.
> I've not had time to look at any of this. But the question I'm most
> curious about is how cgroup-v2 preserves the container invariant.

If you don't have much time to look at the patch, I will suggest just
looking at the cover letter as well as changes to the cgroup-v2.txt
file. You will get a pretty good overview of what this patchset is about.

Cheers,
Longman


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