void kvm_s390_vcpu_wakeup(struct kvm_vcpu *vcpu)
{
- /*
- * We cannot move this into the if, as the CPU might be already
- * in kvm_vcpu_block without having the waitqueue set (polling)
- */
vcpu->valid_wakeup = true;
+ kvm_vcpu_wake_up(vcpu);
+
/*
- * This is mostly to document, that the read in swait_active could
- * be moved before other stores, leading to subtle races.
- * All current users do not store or use an atomic like update
- */
- smp_mb__after_atomic();
- if (swait_active(&vcpu->wq)) {
- /*
- * The vcpu gave up the cpu voluntarily, mark it as a good
- * yield-candidate.
- */
- vcpu->ready = true;
- swake_up_one(&vcpu->wq);
- vcpu->stat.halt_wakeup++;
- }
- /*
- * The VCPU might not be sleeping but is executing the VSIE. Let's
+ * The VCPU might not be sleeping but rather executing VSIE. Let's
* kick it, so it leaves the SIE to process the request.
*/
kvm_s390_vsie_kick(vcpu);