| Thomas Gleixner | f97f8f0 | 2012-07-16 10:42:36 +0000 | [diff] [blame] | 1 | #ifndef _LINUX_SMPBOOT_H |
| 2 | #define _LINUX_SMPBOOT_H |
| 3 | |
| 4 | #include <linux/types.h> |
| 5 | |
| 6 | struct task_struct; |
| 7 | /* Cookie handed to the thread_fn*/ |
| 8 | struct smpboot_thread_data; |
| 9 | |
| 10 | /** |
| 11 | * struct smp_hotplug_thread - CPU hotplug related thread descriptor |
| 12 | * @store: Pointer to per cpu storage for the task pointers |
| 13 | * @list: List head for core management |
| 14 | * @thread_should_run: Check whether the thread should run or not. Called with |
| 15 | * preemption disabled. |
| 16 | * @thread_fn: The associated thread function |
| 17 | * @setup: Optional setup function, called when the thread gets |
| 18 | * operational the first time |
| 19 | * @cleanup: Optional cleanup function, called when the thread |
| 20 | * should stop (module exit) |
| 21 | * @park: Optional park function, called when the thread is |
| 22 | * parked (cpu offline) |
| 23 | * @unpark: Optional unpark function, called when the thread is |
| 24 | * unparked (cpu online) |
| 25 | * @thread_comm: The base name of the thread |
| 26 | */ |
| 27 | struct smp_hotplug_thread { |
| 28 | struct task_struct __percpu **store; |
| 29 | struct list_head list; |
| 30 | int (*thread_should_run)(unsigned int cpu); |
| 31 | void (*thread_fn)(unsigned int cpu); |
| 32 | void (*setup)(unsigned int cpu); |
| 33 | void (*cleanup)(unsigned int cpu, bool online); |
| 34 | void (*park)(unsigned int cpu); |
| 35 | void (*unpark)(unsigned int cpu); |
| 36 | const char *thread_comm; |
| 37 | }; |
| 38 | |
| 39 | int smpboot_register_percpu_thread(struct smp_hotplug_thread *plug_thread); |
| 40 | void smpboot_unregister_percpu_thread(struct smp_hotplug_thread *plug_thread); |
| 41 | int smpboot_thread_schedule(void); |
| 42 | |
| 43 | #endif |