From b28f508112c584cdfbb4d8a9489cc4b79dac68ee Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 15 Jan 2008 23:17:00 -0500
Subject: Suspend: Add config option to disable the freezer if architecture
 wants that

This patch makes the freezer optional for suspend to allow the
system to work (or not work) like the original PMU suspend.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 kernel/power/power.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'kernel/power/power.h')

diff --git a/kernel/power/power.h b/kernel/power/power.h
index 8ec5499c5ce..700f44ec840 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -1,6 +1,7 @@
 #include <linux/suspend.h>
 #include <linux/suspend_ioctls.h>
 #include <linux/utsname.h>
+#include <linux/freezer.h>
 
 struct swsusp_info {
 	struct new_utsname	uts;
@@ -203,3 +204,24 @@ enum {
 #define TEST_MAX	(__TEST_AFTER_LAST - 1)
 
 extern int pm_test_level;
+
+#ifdef CONFIG_SUSPEND_FREEZER
+static inline int suspend_freeze_processes(void)
+{
+	return freeze_processes();
+}
+
+static inline void suspend_thaw_processes(void)
+{
+	thaw_processes();
+}
+#else
+static inline int suspend_freeze_processes(void)
+{
+	return 0;
+}
+
+static inline void suspend_thaw_processes(void)
+{
+}
+#endif
-- 
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