s390/cpu hotplug: mask out CPU_TASKS_FROZEN in cu hotplug notifiers

Unify all our cpu hotplug notifiers to mask out the CPU_TASKS_FROZEN
bit, so we don't have to add all the *_FROZEN variant cases to the
notifiers.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/kernel/smp.c

@@ -959,13 +959,11 @@ static int __cpuinit smp_cpu_notify(struct notifier_block *self,
 	struct device *s = &c->dev;
 	int err = 0;
 
-	switch (action) {
+	switch (action & ~CPU_TASKS_FROZEN) {
 	case CPU_ONLINE:
-	case CPU_ONLINE_FROZEN:
 		err = sysfs_create_group(&s->kobj, &cpu_online_attr_group);
 		break;
 	case CPU_DEAD:
-	case CPU_DEAD_FROZEN:
 		sysfs_remove_group(&s->kobj, &cpu_online_attr_group);
 		break;
 	}

arch/s390/kernel/vtime.c

@@ -378,9 +378,8 @@ static int __cpuinit s390_nohz_notify(struct notifier_block *self,
 	long cpu = (long) hcpu;
 
 	idle = &per_cpu(s390_idle, cpu);
-	switch (action) {
+	switch (action & ~CPU_TASKS_FROZEN) {
 	case CPU_DYING:
-	case CPU_DYING_FROZEN:
 		idle->nohz_delay = 0;
 	default:
 		break;

arch/s390/mm/fault.c

@@ -628,9 +628,8 @@ static int __cpuinit pfault_cpu_notify(struct notifier_block *self,
 	struct thread_struct *thread, *next;
 	struct task_struct *tsk;
 
-	switch (action) {
+	switch (action & ~CPU_TASKS_FROZEN) {
 	case CPU_DEAD:
-	case CPU_DEAD_FROZEN:
 		spin_lock_irq(&pfault_lock);
 		list_for_each_entry_safe(thread, next, &pfault_list, list) {
 			thread->pfault_wait = 0;