s390/vtime: Use get_cpu_timer()

Instead of implementing get_vtimer() use get_cpu_timer()
which does the same.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 24a18e5ef6e8e3ff8fa7754e0e20de0899534511..ffc1db0cbf9c224f4b520bb1762b37c9d9f9cf74 100644 (file)
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -33,14 +33,6 @@ static DEFINE_PER_CPU(u64, mt_scaling_mult) = { 1 };
 static DEFINE_PER_CPU(u64, mt_scaling_div) = { 1 };
 static DEFINE_PER_CPU(u64, mt_scaling_jiffies);
 
-static inline u64 get_vtimer(void)
-{
-       u64 timer;
-
-       asm volatile("stpt %0" : "=Q" (timer));
-       return timer;
-}
-
 static inline void set_vtimer(u64 expires)
 {
        u64 timer;
@@ -223,7 +215,7 @@ static u64 vtime_delta(void)
 {
        u64 timer = S390_lowcore.last_update_timer;
 
-       S390_lowcore.last_update_timer = get_vtimer();
+       S390_lowcore.last_update_timer = get_cpu_timer();
 
        return timer - S390_lowcore.last_update_timer;
 }