freezer: remove obsolete comments in __thaw_task()

__thaw_task() no longer clears frozen flag since commit a3201227f803
(freezer: make freezing() test freeze conditions in effect instead of TIF_FREEZE).

Reviewed-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/kernel/freezer.c b/kernel/freezer.c
index 8f9279b..a8900a3 100644 (file)
--- 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);