KVM: Simplify CPU_TASKS_FROZEN cpu notifier handling

Signed-off-by: NAvi Kivity <avi@qumranet.com>

drivers/kvm/kvm_main.c

@@ -1335,21 +1335,19 @@ static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
 {
 	int cpu = (long)v;
 
+	val &= ~CPU_TASKS_FROZEN;
 	switch (val) {
 	case CPU_DYING:
-	case CPU_DYING_FROZEN:
 		printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",
 		       cpu);
 		hardware_disable(NULL);
 		break;
 	case CPU_UP_CANCELED:
-	case CPU_UP_CANCELED_FROZEN:
 		printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",
 		       cpu);
 		smp_call_function_single(cpu, hardware_disable, NULL, 0, 1);
 		break;
 	case CPU_ONLINE:
-	case CPU_ONLINE_FROZEN:
 		printk(KERN_INFO "kvm: enabling virtualization on CPU%d\n",
 		       cpu);
 		smp_call_function_single(cpu, hardware_enable, NULL, 0, 1);