linux-kernel - Re: [PATCHSET] cgroup: implement task_cgroup_path_from

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Date:	Mon, 15 Apr 2013 11:43:55 +0800
From:	Li Zefan <lizefan@...wei.com>
To:	Tejun Heo <tj@...nel.org>
CC:	<containers@...ts.linux-foundation.org>, <cgroups@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <kay@...y.org>, <greg@...ah.com>,
	<lennart@...ttering.net>, <daniel@...que.org>
Subject: Re: [PATCHSET] cgroup: implement task_cgroup_path_from_hierarchy()

On 2013/4/15 2:36, Tejun Heo wrote:
> kdbus folks want a sane way to determine the cgroup path that a given
> task belongs to on a given hierarchy, which is a reasonble thing to
> expect from cgroup core.
> 
> This patchset make hierarchy_id allocation use idr instead of ida and
> implement task_cgroup_path_from_hierarchy().  In the process, the
> yucky ida cyclic allocation is replaced with idr_alloc_cyclic().
> 
>  0001-cgroup-refactor-hierarchy_id-handling.patch
>  0002-cgroup-drop-hierarchy_id_lock.patch
>  0003-cgroup-make-hierarchy_id-use-cyclic-idr.patch
>  0004-cgroup-implement-task_cgroup_path_from_hierarchy.patch
> 
> 0001-0002 prepare for conversion to idr, which 0003 does.
> 
> 0004 implements the new function.
> 

Acked-by: Li Zefan <lizefan@...wei.com>

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