[PATCH] s390: diag 0x308 reipl

Add code to support the re-IPL method using diagnose 0x308.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 85222fe..e13c87b 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -65,6 +65,7 @@
 extern char vmpoff_cmd[];
 
 extern void reipl(unsigned long devno);
+extern void reipl_diag(void);
 
 static void smp_ext_bitcall(int, ec_bit_sig);
 static void smp_ext_bitcall_others(ec_bit_sig);
@@ -283,6 +284,8 @@
 	 * interrupted by an external interrupt and s390irq
 	 * locks are always held disabled).
 	 */
+	reipl_diag();
+
 	if (MACHINE_IS_VM)
 		cpcmd ("IPL", NULL, 0, NULL);
 	else