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KVM: Simplify kvm_pit_timer 

'timer_mode_mask' is unused
'tscdeadline' is unused
't_ops' only adds needless indirection
'vcpu' is unused

Remove.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Avi Kivity 2012-07-26 18:01:52 +03:00 committed by Marcelo Tosatti
parent 2a6eac9638
commit 9d9d2239bd
2 changed files with 1 additions and 21 deletions
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14
arch/x86/kvm/i8254.c
View File

@ -272,17 +272,6 @@ static void destroy_pit_timer(struct kvm_pit *pit)
flush_kthread_work(&pit->expired);
}
static bool kpit_is_periodic(struct kvm_pit_timer *ktimer)
{
struct kvm_kpit_state *ps = container_of(ktimer, struct kvm_kpit_state,
pit_timer);
return ps->is_periodic;
}
static struct kvm_pit_timer_ops kpit_ops = {
.is_periodic = kpit_is_periodic,
};
static void pit_do_work(struct kthread_work *work)
{
struct kvm_pit *pit = container_of(work, struct kvm_pit, expired);
@ -330,7 +319,7 @@ static enum hrtimer_restart pit_timer_fn(struct hrtimer *data)
queue_kthread_work(&pt->worker, &pt->expired);
}
if (ktimer->t_ops->is_periodic(ktimer)) {
if (pt->pit_state.is_periodic) {
hrtimer_add_expires_ns(&ktimer->timer, ktimer->period);
return HRTIMER_RESTART;
} else
@ -357,7 +346,6 @@ static void create_pit_timer(struct kvm *kvm, u32 val, int is_period)
ps->is_periodic = is_period;
pt->timer.function = pit_timer_fn;
pt->t_ops = &kpit_ops;
pt->kvm = ps->pit->kvm;
atomic_set(&pt->pending, 0);

8
arch/x86/kvm/i8254.h
View File

@ -24,17 +24,9 @@ struct kvm_kpit_channel_state {
struct kvm_pit_timer {
struct hrtimer timer;
s64 period; /* unit: ns */
u32 timer_mode_mask;
u64 tscdeadline;
atomic_t pending; /* accumulated triggered timers */
bool reinject;
struct kvm_pit_timer_ops *t_ops;
struct kvm *kvm;
struct kvm_vcpu *vcpu;
};
struct kvm_pit_timer_ops {
bool (*is_periodic)(struct kvm_pit_timer *);
};
struct kvm_kpit_state {