linux-kernel - Re: [PATCH 08/10] cgroup: don't use subsys->can_attach_task() or ->attach

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Date:	Fri, 4 Nov 2011 18:08:46 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	paul@...lmenage.org, rjw@...k.pl, lizf@...fujitsu.com,
	linux-pm@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
	containers@...ts.linux-foundation.org, fweisbec@...il.com,
	matthltc@...ibm.com, akpm@...ux-foundation.org, oleg@...hat.com,
	kamezawa.hiroyu@...fujitsu.com,
	Balbir Singh <bsingharora@...il.com>,
	Daisuke Nishimura <nishimura@....nes.nec.co.jp>,
	James Morris <jmorris@...ei.org>, Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH 08/10] cgroup: don't use subsys->can_attach_task() or
 ->attach_task()

On Tue,  1 Nov 2011 16:46:31 -0700
Tejun Heo <tj@...nel.org> wrote:

> Now that subsys->can_attach() and attach() take @tset instead of
> @task, they can handle per-task operations.  Convert
> ->can_attach_task() and ->attach_task() users to use ->can_attach()
> and attach() instead.  Most converions are straight-forward.
> Noteworthy changes are,
> 
> * In cgroup_freezer, remove unnecessary NULL assignments to unused
>   methods.  It's useless and very prone to get out of sync, which
>   already happened.
> 
> * In cpuset, PF_THREAD_BOUND test is checked for each task.  This
>   doesn't make any practical difference but is conceptually cleaner.
> 
> Signed-off-by: Tejun Heo <tj@...nel.org>
> Cc: Paul Menage <paul@...lmenage.org>
> Cc: Li Zefan <lizf@...fujitsu.com>
> Cc: Balbir Singh <bsingharora@...il.com>
> Cc: Daisuke Nishimura <nishimura@....nes.nec.co.jp>
> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> Cc: James Morris <jmorris@...ei.org>
> Cc: Ingo Molnar <mingo@...e.hu>
> Cc: Peter Zijlstra <peterz@...radead.org>

Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>

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