diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
index 0d58269..59eddb0 100644
--- a/arch/s390/kernel/vdso.c
+++ b/arch/s390/kernel/vdso.c
@@ -299,7 +299,7 @@
 
 	get_page(virt_to_page(vdso_data));
 
-	smp_wmb();
+	smp_mb();
 
 	return 0;
 }