linux-kernel - Re: [PATCH 22/23] cgroup: make cgroup_taskset deal with cgroup_subsys

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Date:	Tue, 6 Aug 2013 08:53:33 +0200
From:	Daniel Wagner <daniel.wagner@...-carit.de>
To:	Tejun Heo <tj@...nel.org>
CC:	<lizefan@...wei.com>, <containers@...ts.linux-foundation.org>,
	<cgroups@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...hat.com>,
	Matt Helsley <matthltc@...ibm.com>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH 22/23] cgroup: make cgroup_taskset deal with cgroup_subsys_state
 instead of cgroup

Hi Tejun,

On 08/01/2013 11:50 PM, Tejun Heo wrote:
> cgroup is in the process of converting to css (cgroup_subsys_state)
> from cgroup as the principal subsystem interface handle.  This is
> mostly to prepare for the unified hierarchy support where css's will
> be created and destroyed dynamically but also helps cleaning up
> subsystem implementations as css is usually what they are interested
> in anyway.
>
> cgroup_taskset which is used by the subsystem attach methods is the
> last cgroup subsystem API which isn't using css as the handle.  Update
> cgroup_taskset_cur_cgroup() to cgroup_taskset_cur_css() and
> cgroup_taskset_for_each() to take @skip_css instead of @skip_cgrp.
>
> The conversions are pretty mechanical.  One exception is
> cpuset::cgroup_cs(), which lost its last user and got removed.
>
> This patch shouldn't introduce any functional changes.
>
> Signed-off-by: Tejun Heo <tj@...nel.org>
> Cc: Li Zefan <lizefan@...wei.com>
> Cc: Ingo Molnar <mingo@...hat.com>
> Cc: Matt Helsley <matthltc@...ibm.com>
> Cc: Daniel Wagner <daniel.wagner@...-carit.de>
> Cc: Steven Rostedt <rostedt@...dmis.org>

Nice cleanup.

Acked-By: Daniel Wagner <daniel.wagner@...-carit.de>

cheers,
daniel






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