3.16.7-ckt8 -stable review patch.  If anyone has any objections, please let me 
know.

------------------

From: David Hildenbrand <[email protected]>

commit 0ac96caf0f9381088c673a16d910b1d329670edf upstream.

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]>
Signed-off-by: Christian Borntraeger <[email protected]>
[ luis: backported to 3.16: adjusted context ]
Signed-off-by: Luis Henriques <[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 0eaf87281f45..5e9217d96cfe 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -646,7 +646,7 @@ 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);
        tasklet_init(&vcpu->arch.tasklet, kvm_s390_tasklet,
                     (unsigned long) vcpu);
        vcpu->arch.ckc_timer.function = kvm_s390_idle_wakeup;
--
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