From 155af2f95f905c830688dd0ca7c7cac4107334fd Mon Sep 17 00:00:00 2001
From: Hans-Joachim Picht <hans@linux.vnet.ibm.com>
Date: Tue, 16 Jun 2009 10:30:52 +0200
Subject: [S390] s390: hibernation support for s390

This patch introduces the hibernation backend support to the
s390 architecture. Now it is possible to suspend a mainframe Linux
guest using the following command:

echo disk > /sys/power/state

Signed-off-by: Hans-Joachim Picht <hans@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/power/swsusp_64.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 arch/s390/power/swsusp_64.c

(limited to 'arch/s390/power/swsusp_64.c')

diff --git a/arch/s390/power/swsusp_64.c b/arch/s390/power/swsusp_64.c
new file mode 100644
index 000000000000..9516a517d72f
--- /dev/null
+++ b/arch/s390/power/swsusp_64.c
@@ -0,0 +1,17 @@
+/*
+ * Support for suspend and resume on s390
+ *
+ * Copyright IBM Corp. 2009
+ *
+ * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com>
+ *
+ */
+
+#include <asm/system.h>
+#include <linux/interrupt.h>
+
+void do_after_copyback(void)
+{
+	mb();
+}
+
-- 
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