From: David Hildenbrand <[email protected]>

The hrtimer that handles the wait with enabled timer interrupts
should not be disturbed by changes of the host time.

This patch changes our hrtimer to be based on a monotonic clock.

Signed-off-by: David Hildenbrand <[email protected]>
Acked-by: Cornelia Huck <[email protected]>
Cc: [email protected]
Signed-off-by: Christian Borntraeger <[email protected]>
---
 arch/s390/kvm/kvm-s390.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 14cdf1c..37ef06c 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -735,7 +735,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
                if (rc)
                        return rc;
        }
-       hrtimer_init(&vcpu->arch.ckc_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS);
+       hrtimer_init(&vcpu->arch.ckc_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
        vcpu->arch.ckc_timer.function = kvm_s390_idle_wakeup;
        get_cpu_id(&vcpu->arch.cpu_id);
        vcpu->arch.cpu_id.version = 0xff;
-- 
1.9.3

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