From 8174f1503f4bf7e9a14b3fbbfdb30c6be6e29f77 Mon Sep 17 00:00:00 2001
From: Matt Helsley <matthltc@us.ibm.com>
Date: Sat, 18 Oct 2008 20:27:19 -0700
Subject: container freezer: make refrigerator always available

Now that the TIF_FREEZE flag is available in all architectures, extract
the refrigerator() and freeze_task() from kernel/power/process.c and make
it available to all.

The refrigerator() can now be used in a control group subsystem
implementing a control group freezer.

Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Matt Helsley <matthltc@us.ibm.com>
Acked-by: Serge E. Hallyn <serue@us.ibm.com>
Tested-by: Matt Helsley <matthltc@us.ibm.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/power/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'kernel/power/Kconfig')

diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index dcd165f92a88..ebdd7f55273d 100644
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -85,6 +85,9 @@ config PM_SLEEP
 	depends on SUSPEND || HIBERNATION || XEN_SAVE_RESTORE
 	default y
 
+config FREEZER
+	def_bool PM_SLEEP
+
 config SUSPEND
 	bool "Suspend to RAM and standby"
 	depends on PM && ARCH_SUSPEND_POSSIBLE
-- 
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