[Patch v4 2/2] freezer: remove obsolete comments in __thaw_task()

From: Cong Wang <xiyou.wangcong@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Cong Wang <xiyou.wangcong@gmail.com>,
	David Rientjes <rientjes@google.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Tejun Heo <tj@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Michal Hocko <mhocko@suse.cz>
Subject: [Patch v4 2/2] freezer: remove obsolete comments in __thaw_task()
Date: Thu,  4 Sep 2014 15:30:42 -0700	[thread overview]
Message-ID: <1409869842-10807-2-git-send-email-xiyou.wangcong@gmail.com> (raw)
In-Reply-To: <1409869842-10807-1-git-send-email-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>
Cc: Michal Hocko <mhocko@suse.cz>
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 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

