diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 978a35ea6081..73c7afcc0527 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -13,7 +13,7 @@
 #include <linux/timex.h>
 #include <linux/types.h>
 #include <linux/time.h>
-
+#include <asm/alternative.h>
 #include <asm/vtimer.h>
 #include <asm/vtime.h>
 #include <asm/cpu_mf.h>
@@ -128,16 +128,13 @@ static int do_account_vtime(struct task_struct *tsk)
 
 	timer = S390_lowcore.last_update_timer;
 	clock = S390_lowcore.last_update_clock;
-	asm volatile(
-		"	stpt	%0\n"	/* Store current cpu timer value */
-#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
-		"	stckf	%1"	/* Store current tod clock value */
-#else
-		"	stck	%1"	/* Store current tod clock value */
-#endif
-		: "=Q" (S390_lowcore.last_update_timer),
-		  "=Q" (S390_lowcore.last_update_clock)
-		: : "cc");
+	/* Use STORE CLOCK by default, STORE CLOCK FAST if available. */
+	alternative_io("stpt %0\n .insn s,0xb2050000,%1\n",
+		       "stpt %0\n .insn s,0xb27c0000,%1\n",
+		       25,
+		       ASM_OUTPUT2("=Q" (S390_lowcore.last_update_timer),
+				   "=Q" (S390_lowcore.last_update_clock)),
+		       ASM_NO_INPUT_CLOBBER("cc"));
 	clock = S390_lowcore.last_update_clock - clock;
 	timer -= S390_lowcore.last_update_timer;