From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH cgroup/for-3.12] cgroup: replace
 task_cgroup_path_from_hierarchy() with task_cgroup_path()
Date: Fri, 12 Jul 2013 13:02:47 -0700
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To: Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
Cc: containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Lennart Poettering <lennart-mdGvqq1h2p+GdvJs77BJ7Q@public.gmane.org>, Kay Sievers <kay.sievers-tD+1rO4QERM@public.gmane.org>, Jan =?utf-8?Q?Kalu=C5=BEa?= <jkaluza-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>

On Thu, Jul 11, 2013 at 04:34:48PM -0700, Tejun Heo wrote:
> task_cgroup_path_from_hierarchy() was added for the planned new users
> and none of the currently planned users wants to know about multiple
> hierarchies.  This patch drops the multiple hierarchy part and makes
> it always return the path in the first non-dummy hierarchy.
>=20
> As unified hierarchy will always have id 1, this is guaranteed to
> return the path for the unified hierarchy if mounted; otherwise, it
> will return the path from the hierarchy which happens to occupy the
> lowest hierarchy id, which will usually be the first hierarchy mounte=
d
> after boot.
>=20
> Signed-off-by: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Cc: Lennart Poettering <lennart-mdGvqq1h2p+GdvJs77BJ7Q@public.gmane.org>
> Cc: Kay Sievers <kay.sievers-tD+1rO4QERM@public.gmane.org>
> Cc: Jan Kalu=C5=BEa <jkaluza-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>

Applied this to cgroup/for-3.11-fixes so that the out-of-tree usages
currently being developed can target 3.11 kernel.  This function
currently doesn't have any in-tree users so this won't affect
anything.

Thanks.

--=20
tejun