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>
---
kernel/freezer.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/kernel/freezer.c b/kernel/freezer.c
index 77ad6794b610..190d667f4e12 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);
--
2.1.1
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