1 files changed, 5 insertions, 35 deletions

diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index d13c9aebf7a3..9ba7c820fc23 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -1590,7 +1590,7 @@ SYSCALL_DEFINE2(nanosleep, struct timespec __user *, rqtp,
 /*
  * Functions related to boot-time initialization:
  */
-static void init_hrtimers_cpu(int cpu)
+int hrtimers_prepare_cpu(unsigned int cpu)
 {
         struct hrtimer_cpu_base *cpu_base = &per_cpu(hrtimer_bases, cpu);
         int i;
@@ -1602,6 +1602,7 @@ static void init_hrtimers_cpu(int cpu)
 
         cpu_base->cpu = cpu;
         hrtimer_init_hres(cpu_base);
+        return 0;
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
@@ -1636,7 +1637,7 @@ static void migrate_hrtimer_list(struct hrtimer_clock_base *old_base,
         }
 }
 
-static void migrate_hrtimers(int scpu)
+int hrtimers_dead_cpu(unsigned int scpu)
 {
         struct hrtimer_cpu_base *old_base, *new_base;
         int i;
@@ -1665,45 +1666,14 @@ static void migrate_hrtimers(int scpu)
         /* Check, if we got expired work to do */
         __hrtimer_peek_ahead_timers();
         local_irq_enable();
+        return 0;
 }
 
 #endif /* CONFIG_HOTPLUG_CPU */
 
-static int hrtimer_cpu_notify(struct notifier_block *self,
-                                        unsigned long action, void *hcpu)
-{
-        int scpu = (long)hcpu;
-
-        switch (action) {
-
-        case CPU_UP_PREPARE:
-        case CPU_UP_PREPARE_FROZEN:
-                init_hrtimers_cpu(scpu);
-                break;
-
-#ifdef CONFIG_HOTPLUG_CPU
-        case CPU_DEAD:
-        case CPU_DEAD_FROZEN:
-                migrate_hrtimers(scpu);
-                break;
-#endif
-
-        default:
-                break;
-        }
-
-        return NOTIFY_OK;
-}
-
-static struct notifier_block hrtimers_nb = {
-        .notifier_call = hrtimer_cpu_notify,
-};
-
 void __init hrtimers_init(void)
 {
-        hrtimer_cpu_notify(&hrtimers_nb, (unsigned long)CPU_UP_PREPARE,
-                          (void *)(long)smp_processor_id());
-        register_cpu_notifier(&hrtimers_nb);
+        hrtimers_prepare_cpu(smp_processor_id());
 }
 
 /**