[PATCH] s390: add vmcp interface

Add interface to issue VM control program commands.

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/mm/extmem.c b/arch/s390/mm/extmem.c
index 648deed..c534810 100644
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -576,8 +576,8 @@
 			segtype_string[seg->range[i].start & 0xff]);
 	}
 	sprintf(cmd2, "SAVESEG %s", name);
-	cpcmd(cmd1, NULL, 0);
-	cpcmd(cmd2, NULL, 0);
+	cpcmd(cmd1, NULL, 0, NULL);
+	cpcmd(cmd2, NULL, 0, NULL);
 	spin_unlock(&dcss_lock);
 }