On Thu 04-09-14 15:30:42, Cong Wang wrote:
> __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 <rient...@google.com>
> Cc: "Rafael J. Wysocki" <r...@rjwysocki.net>
> Cc: Tejun Heo <t...@kernel.org>
> Cc: Andrew Morton <a...@linux-foundation.org>
> Cc: Michal Hocko <mho...@suse.cz>
> Reviewed-by: Michal Hocko <mho...@suse.cz>
> Signed-off-by: Cong Wang <xiyou.wangc...@gmail.com>
Thanks for extending the description.
Acked-by: Michal Hocko <mho...@suse.cz>
> ---
> kernel/freezer.c | 6 ------
> 1 file changed, 6 deletions(-)
>
> diff --git a/kernel/freezer.c b/kernel/freezer.c
> index dbcb87c..438ecca 100644
> --- a/kernel/freezer.c
> +++ b/kernel/freezer.c
> @@ -161,12 +161,6 @@ 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);
> --
> 1.8.3.1
>
--
Michal Hocko
SUSE Labs
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