linux-kernel - Re: [PATCH 3/3] cgroup: implement cgroup.subtree

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Message-ID: <20140415145450.GL1863@htj.dyndns.org>
Date:	Tue, 15 Apr 2014 10:54:50 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Li Zefan <lizefan@...wei.com>
Cc:	containers@...ts.linux-foundation.org, cgroups@...r.kernel.org,
	linux-kernel@...r.kernel.org, john@...nmccutchan.com,
	rlove@...ve.org, eparis@...isplace.org, gregkh@...uxfoundation.org,
	serge.hallyn@...ntu.com, lennart@...ttering.net, kay@...y.org
Subject: Re: [PATCH 3/3] cgroup: implement cgroup.subtree_populated for the
 default hierarchy

Hello,

On Tue, Apr 15, 2014 at 08:57:21AM +0800, Li Zefan wrote:
> Is cgroup.tree_populated a better name?
> 
> cgroup.subtree_control controls child cgroups only, but .subtree_populated
> shows 1 if there're tasks in the cgroup or its children, so the two
> are a bit inconsistent to me.

Yes, good catch.  subtree_control affects subtree proper.
subtree_populated covers self too.  The difference is subtle and the
trade off between shared pattern in names and clarifying the subtlety
didn't seem clear-cut to me.  Hmmm....

-- 
tejun
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