KVM: s390: use kvm_vcpu_on_spin for diag 0x44

Lets replace the old open coded version of diag 0x44 (which relied on
compat_sched_yield) with kvm_vcpu_on_spin.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c
index 2d2ae32..b23d9ac 100644 (file)
--- a/arch/s390/kvm/diag.c
+++ b/arch/s390/kvm/diag.c
@@ -47,9 +47,7 @@ static int __diag_time_slice_end(struct kvm_vcpu *vcpu)
 {
        VCPU_EVENT(vcpu, 5, "%s", "diag time slice end");
        vcpu->stat.diagnose_44++;
-       vcpu_put(vcpu);
-       yield();
-       vcpu_load(vcpu);
+       kvm_vcpu_on_spin(vcpu);
        return 0;
 }