[PATCH 2/3] freezer: remove obsolete comments in __thaw_task()

[Michal Hocko <mhocko@suse.cz>]

From: Cong Wang <xiyou.wangcong@gmail.com>

__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@google.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Tejun Heo <tj@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
---
 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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