patches.runtime_pm/0118-freezer-don-t-distinguish-nosig-tasks-on-thaw.patch

From c5c4b7c42e328228085d8f904bf411dcd58d6012 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Mon, 21 Nov 2011 12:32:23 -0800
Subject: freezer: don't distinguish nosig tasks on thaw

There's no point in thawing nosig tasks before others.  There's no
ordering requirement between the two groups on thaw, which the staged
thawing can't guarantee anyway.  Simplify thaw_processes() by removing
the distinction and collapsing thaw_tasks() into thaw_processes().
This will help further updates to freezer.

Signed-off-by: Tejun Heo <tj@kernel.org>
(cherry picked from commit 6cd8dedcdd8e8de01391a7cf25f0b2afeb24f8f4)

Signed-off-by: Simon Horman <horms@verge.net.au>
---
 kernel/power/process.c |   20 +++++++-------------
 1 file changed, 7 insertions(+), 13 deletions(-)

diff --git a/kernel/power/process.c b/kernel/power/process.c
index 23822dc..9db048f 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -170,34 +170,28 @@ int freeze_kernel_threads(void)
 	return error;
 }
 
-static void thaw_tasks(bool nosig_only)
+void thaw_processes(void)
 {
 	struct task_struct *g, *p;
 
+	oom_killer_enable();
+
+	printk("Restarting tasks ... ");
+
+	thaw_workqueues();
+
 	read_lock(&tasklist_lock);
 	do_each_thread(g, p) {
 		if (!freezable(p))
 			continue;
 
-		if (nosig_only && should_send_signal(p))
-			continue;
-
 		if (cgroup_freezing_or_frozen(p))
 			continue;
 
 		__thaw_task(p);
 	} while_each_thread(g, p);
 	read_unlock(&tasklist_lock);
-}
-
-void thaw_processes(void)
-{
-	oom_killer_enable();
 
-	printk("Restarting tasks ... ");
-	thaw_workqueues();
-	thaw_tasks(true);
-	thaw_tasks(false);
 	schedule();
 	printk("done.\n");
 }
-- 
1.7.10.1.362.g242cab3