diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/cpu.h | 1 | ||||
| -rw-r--r-- | include/linux/notifier.h | 10 |
2 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h index d7faf880849..c2747ac2ae4 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -69,6 +69,7 @@ static inline void unregister_cpu_notifier(struct notifier_block *nb) #endif int cpu_up(unsigned int cpu); +void notify_cpu_starting(unsigned int cpu); extern void cpu_hotplug_init(void); extern void cpu_maps_update_begin(void); extern void cpu_maps_update_done(void); diff --git a/include/linux/notifier.h b/include/linux/notifier.h index da2698b0fdd..b86fa2ffca0 100644 --- a/include/linux/notifier.h +++ b/include/linux/notifier.h @@ -213,9 +213,16 @@ static inline int notifier_to_errno(int ret) #define CPU_DOWN_FAILED 0x0006 /* CPU (unsigned)v NOT going down */ #define CPU_DEAD 0x0007 /* CPU (unsigned)v dead */ #define CPU_DYING 0x0008 /* CPU (unsigned)v not running any task, - * not handling interrupts, soon dead */ + * not handling interrupts, soon dead. + * Called on the dying cpu, interrupts + * are already disabled. Must not + * sleep, must not fail */ #define CPU_POST_DEAD 0x0009 /* CPU (unsigned)v dead, cpu_hotplug * lock is dropped */ +#define CPU_STARTING 0x000A /* CPU (unsigned)v soon running. + * Called on the new cpu, just before + * enabling interrupts. Must not sleep, + * must not fail */ /* Used for CPU hotplug events occuring while tasks are frozen due to a suspend * operation in progress @@ -229,6 +236,7 @@ static inline int notifier_to_errno(int ret) #define CPU_DOWN_FAILED_FROZEN (CPU_DOWN_FAILED | CPU_TASKS_FROZEN) #define CPU_DEAD_FROZEN (CPU_DEAD | CPU_TASKS_FROZEN) #define CPU_DYING_FROZEN (CPU_DYING | CPU_TASKS_FROZEN) +#define CPU_STARTING_FROZEN (CPU_STARTING | CPU_TASKS_FROZEN) /* Hibernation and suspend events */ #define PM_HIBERNATION_PREPARE 0x0001 /* Going to hibernate */ |