3.4.112-rt143-rc1 stable review patch. If anyone has any objections, please let me know. ------------------ From: "Steven Rostedt (Red Hat)" The whole patch was not backported correctly and causes allmodconfig to fail. Signed-off-by: Steven Rostedt --- arch/x86/kvm/lapic.c | 42 +++--------------------------------------- 1 file changed, 3 insertions(+), 39 deletions(-) diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index b6dffeacbe92..53454a6775bf 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -683,38 +683,8 @@ static void update_divide_count(struct kvm_lapic *apic) apic->divide_count); } - -static enum hrtimer_restart apic_timer_fn(struct hrtimer *data); - -static void apic_timer_expired(struct hrtimer *data) -{ - int ret, i = 0; - enum hrtimer_restart r; - struct kvm_timer *ktimer = container_of(data, struct kvm_timer, timer); - - r = apic_timer_fn(data); - - if (r == HRTIMER_RESTART) { - do { - ret = hrtimer_start_expires(data, HRTIMER_MODE_ABS); - if (ret == -ETIME) - hrtimer_add_expires_ns(&ktimer->timer, - ktimer->period); - i++; - } while (ret == -ETIME && i < 10); - - if (ret == -ETIME) { - printk_once(KERN_ERR "%s: failed to reprogram timer\n", - __func__); - WARN_ON_ONCE(1); - } - } -} - - static void start_apic_timer(struct kvm_lapic *apic) { - int ret; ktime_t now; atomic_set(&apic->lapic_timer.pending, 0); @@ -744,11 +714,9 @@ static void start_apic_timer(struct kvm_lapic *apic) } } - ret = hrtimer_start(&apic->lapic_timer.timer, + hrtimer_start(&apic->lapic_timer.timer, ktime_add_ns(now, apic->lapic_timer.period), HRTIMER_MODE_ABS); - if (ret == -ETIME) - apic_timer_expired(&apic->lapic_timer.timer); apic_debug("%s: bus cycle is %" PRId64 "ns, now 0x%016" PRIx64 ", " @@ -778,10 +746,8 @@ static void start_apic_timer(struct kvm_lapic *apic) ns = (tscdeadline - guest_tsc) * 1000000ULL; do_div(ns, this_tsc_khz); } - ret = hrtimer_start(&apic->lapic_timer.timer, + hrtimer_start(&apic->lapic_timer.timer, ktime_add_ns(now, ns), HRTIMER_MODE_ABS); - if (ret == -ETIME) - apic_timer_expired(&apic->lapic_timer.timer); local_irq_restore(flags); } @@ -1211,7 +1177,6 @@ int kvm_create_lapic(struct kvm_vcpu *vcpu) hrtimer_init(&apic->lapic_timer.timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); apic->lapic_timer.timer.function = kvm_timer_fn; - apic->lapic_timer.timer.irqsafe = 1; apic->lapic_timer.t_ops = &lapic_timer_ops; apic->lapic_timer.kvm = vcpu->kvm; apic->lapic_timer.vcpu = vcpu; @@ -1309,8 +1274,7 @@ void __kvm_migrate_apic_timer(struct kvm_vcpu *vcpu) timer = &apic->lapic_timer.timer; if (hrtimer_cancel(timer)) - if (hrtimer_start_expires(timer, HRTIMER_MODE_ABS) == -ETIME) - apic_timer_expired(timer); + hrtimer_start_expires(timer, HRTIMER_MODE_ABS); } void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu) -- 2.8.1