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| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2014-05-16 11:59:46 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-07-21 13:22:38 +0200 |
| commit | 0e9c85a5a312fef3e2e79d3ce2d8b6e5b6115e90 (patch) | |
| tree | 3b902259f325f4c4529a2d0367337259a66f0143 /arch/s390/kvm/kvm-s390.h | |
| parent | KVM: s390: remove _bh locking from start_stop_lock (diff) | |
| download | linux-0e9c85a5a312fef3e2e79d3ce2d8b6e5b6115e90.tar.xz linux-0e9c85a5a312fef3e2e79d3ce2d8b6e5b6115e90.zip | |
KVM: s390: move vcpu wakeup code to a central point
Let's move the vcpu wakeup code to a central point.
We should set the vcpu->preempted flag only if the target is actually sleeping
and before the real wakeup happens. Otherwise the preempted flag might be set,
when not necessary. This may result in immediate reschedules after schedule()
in some scenarios.
The wakeup code doesn't require the local_int.lock to be held.
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/kvm-s390.h')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h index 33a0e4bed2a5..665eaccb9ca5 100644 --- a/arch/s390/kvm/kvm-s390.h +++ b/arch/s390/kvm/kvm-s390.h @@ -136,6 +136,7 @@ static inline int kvm_s390_user_cpu_state_ctrl(struct kvm *kvm) } int kvm_s390_handle_wait(struct kvm_vcpu *vcpu); +void kvm_s390_vcpu_wakeup(struct kvm_vcpu *vcpu); enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer); void kvm_s390_tasklet(unsigned long parm); void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu); |