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Diffstat (limited to 'arch/s390/kernel/process.c')
-rw-r--r--arch/s390/kernel/process.c32
1 files changed, 9 insertions, 23 deletions
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 536d64579d9a..2bc3eddae34a 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -61,18 +61,8 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
return sf->gprs[8];
}
-/*
- * The idle loop on a S390...
- */
-static void default_idle(void)
+void arch_cpu_idle(void)
{
- if (cpu_is_offline(smp_processor_id()))
- cpu_die();
- local_irq_disable();
- if (need_resched()) {
- local_irq_enable();
- return;
- }
local_mcck_disable();
if (test_thread_flag(TIF_MCCK_PENDING)) {
local_mcck_enable();
@@ -83,19 +73,15 @@ static void default_idle(void)
vtime_stop_cpu();
}
-void cpu_idle(void)
+void arch_cpu_idle_exit(void)
{
- for (;;) {
- tick_nohz_idle_enter();
- rcu_idle_enter();
- while (!need_resched() && !test_thread_flag(TIF_MCCK_PENDING))
- default_idle();
- rcu_idle_exit();
- tick_nohz_idle_exit();
- if (test_thread_flag(TIF_MCCK_PENDING))
- s390_handle_mcck();
- schedule_preempt_disabled();
- }
+ if (test_thread_flag(TIF_MCCK_PENDING))
+ s390_handle_mcck();
+}
+
+void arch_cpu_idle_dead(void)
+{
+ cpu_die();
}
extern void __kprobes kernel_thread_starter(void);