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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>
This commit is contained in:
Heiko Carstens 2012-08-27 15:43:49 +02:00 committed by Martin Schwidefsky
parent 0d0e471b46
commit 1c725922dd
3 changed files with 3 additions and 7 deletions
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4
arch/s390/kernel/smp.c
View File

@ -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;
}

3
arch/s390/kernel/vtime.c
View File

@ -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;

3
arch/s390/mm/fault.c
View File

@ -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;