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| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2014-05-16 14:08:29 +0400 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-07-21 15:22:42 +0400 |
| commit | ea74c0ea1b24a6978a6ebc80ba4dbc7b7848b32d (patch) | |
| tree | f17c10e3cc17e2c182447f5c95ef6bdeea1eb7db /arch/s390 | |
| parent | 0e9c85a5a312fef3e2e79d3ce2d8b6e5b6115e90 (diff) | |
| download | linux-ea74c0ea1b24a6978a6ebc80ba4dbc7b7848b32d.tar.xz | |
KVM: s390: remove the tasklet used by the hrtimer
We can get rid of the tasklet used for waking up a VCPU in the hrtimer
code but wakeup the VCPU directly.
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')
| -rw-r--r-- | arch/s390/include/asm/kvm_host.h | 1 | ||||
| -rw-r--r-- | arch/s390/kvm/interrupt.c | 13 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 2 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.h | 1 |
4 files changed, 1 insertions, 16 deletions
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index b3acf28c8c96..773bef7614d8 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -366,7 +366,6 @@ struct kvm_vcpu_arch { s390_fp_regs guest_fpregs; struct kvm_s390_local_interrupt local_int; struct hrtimer ckc_timer; - struct tasklet_struct tasklet; struct kvm_s390_pgm_info pgm; union { struct cpuid cpu_id; diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index 65396e14ff05..1be3d8da49e9 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -629,23 +629,12 @@ void kvm_s390_vcpu_wakeup(struct kvm_vcpu *vcpu) } } -void kvm_s390_tasklet(unsigned long parm) -{ - struct kvm_vcpu *vcpu = (struct kvm_vcpu *) parm; - kvm_s390_vcpu_wakeup(vcpu); -} - -/* - * low level hrtimer wake routine. Because this runs in hardirq context - * we schedule a tasklet to do the real work. - */ enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer) { struct kvm_vcpu *vcpu; vcpu = container_of(timer, struct kvm_vcpu, arch.ckc_timer); - vcpu->preempted = true; - tasklet_schedule(&vcpu->arch.tasklet); + kvm_s390_vcpu_wakeup(vcpu); return HRTIMER_NORESTART; } diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index b29a03132ecb..dd902e64c033 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -649,8 +649,6 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) return rc; } hrtimer_init(&vcpu->arch.ckc_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS); - tasklet_init(&vcpu->arch.tasklet, kvm_s390_tasklet, - (unsigned long) vcpu); vcpu->arch.ckc_timer.function = kvm_s390_idle_wakeup; get_cpu_id(&vcpu->arch.cpu_id); vcpu->arch.cpu_id.version = 0xff; diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h index 665eaccb9ca5..3862fa2cefe0 100644 --- a/arch/s390/kvm/kvm-s390.h +++ b/arch/s390/kvm/kvm-s390.h @@ -138,7 +138,6 @@ 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); void kvm_s390_deliver_pending_machine_checks(struct kvm_vcpu *vcpu); void kvm_s390_clear_local_irqs(struct kvm_vcpu *vcpu); |