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    SubjectRe: [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@kernel.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@kernel.org>
    > Cc: Paul Menage <paul@paulmenage.org>
    > Cc: Li Zefan <lizf@cn.fujitsu.com>
    > Cc: Balbir Singh <bsingharora@gmail.com>
    > Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
    > Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
    > Cc: James Morris <jmorris@namei.org>
    > Cc: Ingo Molnar <mingo@elte.hu>
    > Cc: Peter Zijlstra <peterz@infradead.org>

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



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