diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/cpu.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 2f374d79f157..02579ec6b99c 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -37,7 +37,12 @@ extern int register_cpu_notifier(struct notifier_block *nb); extern void unregister_cpu_notifier(struct notifier_block *nb); int cpu_up(unsigned int cpu); + +#define lock_cpu_hotplug() down(&cpucontrol) +#define unlock_cpu_hotplug() up(&cpucontrol) + #else + static inline int register_cpu_notifier(struct notifier_block *nb) { return 0; @@ -45,6 +50,10 @@ static inline int register_cpu_notifier(struct notifier_block *nb) static inline void unregister_cpu_notifier(struct notifier_block *nb) { } + +#define lock_cpu_hotplug() do { } while (0) +#define unlock_cpu_hotplug() do { } while (0) + #endif /* CONFIG_SMP */ extern struct sysdev_class cpu_sysdev_class; |