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| author |   David Hildenbrand <dahi@linux.vnet.ibm.com> | 2014-12-12 15:17:31 +0100 |
|---|---|---|
| committer |   Christian Borntraeger <borntraeger@de.ibm.com> | 2015-01-23 13:25:32 +0100 |
| commit | 0ac96caf0f9381088c673a16d910b1d329670edf (patch) | |
| tree | b6b64cf389c7ffa37efb6b7e59bdbba0bdc8ef64 /arch/s390/kvm | |
| parent | KVM: s390: prevent sleep duration underflows in handle_wait() (diff) | |
| download | linux-dev-0ac96caf0f9381088c673a16d910b1d329670edf.tar.xz linux-dev-0ac96caf0f9381088c673a16d910b1d329670edf.zip | |
KVM: s390: base hrtimer on a monotonic clock
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 <dahi@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 14cdf1c3b995..37ef06c19c31 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; |