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s390/vtime: Use get_cpu_timer()

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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>
This commit is contained in:
Sven Schnelle 2024-04-30 16:30:00 +02:00 committed by Alexander Gordeev
parent fa2ae4a377
commit 095c89e99b
1 changed files with 1 additions and 9 deletions
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10
arch/s390/kernel/vtime.c
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@ -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_div) = { 1 };
static DEFINE_PER_CPU(u64, mt_scaling_jiffies); 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) static inline void set_vtimer(u64 expires)
{ {
u64 timer; u64 timer;
@ -223,7 +215,7 @@ static u64 vtime_delta(void)
{ {
u64 timer = S390_lowcore.last_update_timer; 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; return timer - S390_lowcore.last_update_timer;
} }