---

yaml
---
r: 291864
b: refs/heads/master
c: 37f08be
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8671bbc1bd0442ef0eab27f7d56216431c490820
+refs/heads/master: 37f08be11be9a7d9351fb1b9b408259519a126f3

trunk/kernel/exit.c

@@ -424,7 +424,7 @@ void daemonize(const char *name, ...)
 	 */
 	exit_mm(current);
 	/*
-	 * We don't want to have TIF_FREEZE set if the system-wide hibernation
+	 * We don't want to get frozen, in case system-wide hibernation
 	 * or suspend transition begins right now.
 	 */
 	current->flags |= (PF_NOFREEZE | PF_KTHREAD);

trunk/kernel/freezer.c

@@ -99,9 +99,9 @@ static void fake_signal_wake_up(struct task_struct *p)
  * freeze_task - send a freeze request to given task
  * @p: task to send the request to
  *
- * If @p is freezing, the freeze request is sent by setting %TIF_FREEZE
- * flag and either sending a fake signal to it or waking it up, depending
- * on whether it has %PF_FREEZER_NOSIG set.
+ * If @p is freezing, the freeze request is sent either by sending a fake
+ * signal (if it's not a kernel thread) or waking it up (if it's a kernel
+ * thread).
  *
  * RETURNS:
  * %false, if @p is not freezing or already frozen; %true, otherwise

trunk/kernel/power/process.c

@@ -53,11 +53,9 @@ static int try_to_freeze_tasks(bool user_only)
 			 * It is "frozen enough".  If the task does wake
 			 * up, it will immediately call try_to_freeze.
 			 *
-			 * Because freeze_task() goes through p's
-			 * scheduler lock after setting TIF_FREEZE, it's
-			 * guaranteed that either we see TASK_RUNNING or
-			 * try_to_stop() after schedule() in ptrace/signal
-			 * stop sees TIF_FREEZE.
+			 * Because freeze_task() goes through p's scheduler lock, it's
+			 * guaranteed that TASK_STOPPED/TRACED -> TASK_RUNNING
+			 * transition can't race with task state testing here.
 			 */
 			if (!task_is_stopped_or_traced(p) &&
 			    !freezer_should_skip(p))