On Tuesday, October 21, 2014 09:27:13 AM Michal Hocko wrote:
> From: Cong Wang <xiyou.wangcong@xxxxxxxxx>
>
> __thaw_task() no longer clears frozen flag since commit a3201227f803
> (freezer: make freezing() test freeze conditions in effect instead of TIF_FREEZE).
>
> Cc: David Rientjes <rientjes@xxxxxxxxxx>
> Cc: "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx>
> Cc: Tejun Heo <tj@xxxxxxxxxx>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Reviewed-by: Michal Hocko <mhocko@xxxxxxx>
> Signed-off-by: Cong Wang <xiyou.wangcong@xxxxxxxxx>
ACK
> ---
> kernel/freezer.c | 6 ------
> 1 file changed, 6 deletions(-)
>
> diff --git a/kernel/freezer.c b/kernel/freezer.c
> index 8f9279b9c6d7..a8900a3bc27a 100644
> --- a/kernel/freezer.c
> +++ b/kernel/freezer.c
> @@ -150,12 +150,6 @@ void __thaw_task(struct task_struct *p)
> {
> unsigned long flags;
>
> - /*
> - * Clear freezing and kick @p if FROZEN. Clearing is guaranteed to
> - * be visible to @p as waking up implies wmb. Waking up inside
> - * freezer_lock also prevents wakeups from leaking outside
> - * refrigerator.
> - */
> spin_lock_irqsave(&freezer_lock, flags);
> if (frozen(p))
> wake_up_process(p);
>
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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