linux-kernel - Re: [PATCH v3 2/3] cgroup: revise how we re-populate root directory

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Message-ID: <20120709171748.GD1341@google.com>
Date:	Mon, 9 Jul 2012 10:17:48 -0700
From:	Tejun Heo <tj@...nel.org>
To:	Aristeu Rozanski <aris@...hat.com>
Cc:	linux-kernel@...r.kernel.org, Li Zefan <lizefan@...wei.com>,
	Hugh Dickins <hughd@...gle.com>,
	Hillf Danton <dhillf@...il.com>
Subject: Re: [PATCH v3 2/3] cgroup: revise how we re-populate root directory

On Mon, Jul 02, 2012 at 10:29:27AM -0400, Aristeu Rozanski wrote:
> From: Li Zefan <lizefan@...wei.com>
> 
> When remounting cgroupfs with some subsystems added to it and some
> removed, cgroup will remove all the files in root directory and then
> re-popluate it.
> 
> What I'm doing here is, only remove files which belong to subsystems that
> are to be unbinded, and only create files for newly-added subsystems.
> The purpose is to have all other files untouched.
> 
> This is a preparation for cgroup xattr support.
> 
> v3:
> - refresh patches after recent refactoring

Changing subsys_bits via remount is being deprecated.  No need to
worry about this.

Thanks.

-- 
tejun
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