diff options
Diffstat (limited to 'include/linux/cpu.h')
| -rw-r--r-- | include/linux/cpu.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 08d50c53aab..44a11f1ccaf 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -31,17 +31,23 @@ struct cpu { struct sys_device sysdev; }; -extern int register_cpu(struct cpu *, int, struct node *); +extern int register_cpu(struct cpu *cpu, int num); extern struct sys_device *get_cpu_sysdev(unsigned cpu); #ifdef CONFIG_HOTPLUG_CPU -extern void unregister_cpu(struct cpu *, struct node *); +extern void unregister_cpu(struct cpu *cpu); #endif struct notifier_block; #ifdef CONFIG_SMP /* Need to know about CPUs going up/down? */ extern int register_cpu_notifier(struct notifier_block *nb); +#ifdef CONFIG_HOTPLUG_CPU extern void unregister_cpu_notifier(struct notifier_block *nb); +#else +static inline void unregister_cpu_notifier(struct notifier_block *nb) +{ +} +#endif extern int current_in_cpu_hotplug(void); int cpu_up(unsigned int cpu); @@ -73,13 +79,17 @@ extern int lock_cpu_hotplug_interruptible(void); { .notifier_call = fn, .priority = pri }; \ register_cpu_notifier(&fn##_nb); \ } +#define register_hotcpu_notifier(nb) register_cpu_notifier(nb) +#define unregister_hotcpu_notifier(nb) unregister_cpu_notifier(nb) int cpu_down(unsigned int cpu); #define cpu_is_offline(cpu) unlikely(!cpu_online(cpu)) #else #define lock_cpu_hotplug() do { } while (0) #define unlock_cpu_hotplug() do { } while (0) #define lock_cpu_hotplug_interruptible() 0 -#define hotcpu_notifier(fn, pri) +#define hotcpu_notifier(fn, pri) do { } while (0) +#define register_hotcpu_notifier(nb) do { } while (0) +#define unregister_hotcpu_notifier(nb) do { } while (0) /* CPUs don't go offline once they're online w/o CONFIG_HOTPLUG_CPU */ static inline int cpu_is_offline(int cpu) { return 0; } |