#include <linux/node.h>
#include <linux/compiler.h>
#include <linux/cpumask.h>
-#include <asm/semaphore.h>
#include <linux/mutex.h>
struct cpu {
int cpu_up(unsigned int cpu);
+extern void cpu_hotplug_init(void);
+
#else
static inline int register_cpu_notifier(struct notifier_block *nb)
{
return 0;
}
+
static inline void unregister_cpu_notifier(struct notifier_block *nb)
{
}
+static inline void cpu_hotplug_init(void)
+{
+}
+
#endif /* CONFIG_SMP */
extern struct sysdev_class cpu_sysdev_class;
+extern void cpu_maps_update_begin(void);
+extern void cpu_maps_update_done(void);
#ifdef CONFIG_HOTPLUG_CPU
/* Stop CPUs going up and down. */
mutex_unlock(cpu_hp_mutex);
}
-extern void lock_cpu_hotplug(void);
-extern void unlock_cpu_hotplug(void);
+extern void get_online_cpus(void);
+extern void put_online_cpus(void);
#define hotcpu_notifier(fn, pri) { \
static struct notifier_block fn##_nb = \
{ .notifier_call = fn, .priority = pri }; \
#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 /* CONFIG_HOTPLUG_CPU */
static inline void cpuhotplug_mutex_unlock(struct mutex *cpu_hp_mutex)
{ }
-#define lock_cpu_hotplug() do { } while (0)
-#define unlock_cpu_hotplug() do { } while (0)
+#define get_online_cpus() do { } while (0)
+#define put_online_cpus() do { } while (0)
#define hotcpu_notifier(fn, pri) do { (void)(fn); } while (0)
-#define register_hotcpu_notifier(nb) do { (void)(nb); } while (0)
-#define unregister_hotcpu_notifier(nb) do { (void)(nb); } 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; }
+/* These aren't inline functions due to a GCC bug. */
+#define register_hotcpu_notifier(nb) ({ (void)(nb); 0; })
+#define unregister_hotcpu_notifier(nb) ({ (void)(nb); })
#endif /* CONFIG_HOTPLUG_CPU */
#ifdef CONFIG_PM_SLEEP_SMP