| Mike Galbraith | 5091faa | 2010-11-30 14:18:03 +0100 | [diff] [blame] | 1 | #ifdef CONFIG_SCHED_AUTOGROUP |
| 2 | |
| 3 | struct autogroup { |
| Yong Zhang | 800d4d3 | 2011-02-20 15:08:14 +0800 | [diff] [blame] | 4 | /* |
| 5 | * reference doesn't mean how many thread attach to this |
| 6 | * autogroup now. It just stands for the number of task |
| 7 | * could use this autogroup. |
| 8 | */ |
| Mike Galbraith | 5091faa | 2010-11-30 14:18:03 +0100 | [diff] [blame] | 9 | struct kref kref; |
| 10 | struct task_group *tg; |
| 11 | struct rw_semaphore lock; |
| 12 | unsigned long id; |
| 13 | int nice; |
| 14 | }; |
| 15 | |
| Yong Zhang | 1c09ab0 | 2011-06-28 10:51:31 +0800 | [diff] [blame] | 16 | static inline bool task_group_is_autogroup(struct task_group *tg); |
| Mike Galbraith | 5091faa | 2010-11-30 14:18:03 +0100 | [diff] [blame] | 17 | static inline struct task_group * |
| 18 | autogroup_task_group(struct task_struct *p, struct task_group *tg); |
| 19 | |
| 20 | #else /* !CONFIG_SCHED_AUTOGROUP */ |
| 21 | |
| 22 | static inline void autogroup_init(struct task_struct *init_task) { } |
| 23 | static inline void autogroup_free(struct task_group *tg) { } |
| Mike Galbraith | f449377 | 2011-01-13 04:54:50 +0100 | [diff] [blame] | 24 | static inline bool task_group_is_autogroup(struct task_group *tg) |
| 25 | { |
| 26 | return 0; |
| 27 | } |
| Mike Galbraith | 5091faa | 2010-11-30 14:18:03 +0100 | [diff] [blame] | 28 | |
| 29 | static inline struct task_group * |
| 30 | autogroup_task_group(struct task_struct *p, struct task_group *tg) |
| 31 | { |
| 32 | return tg; |
| 33 | } |
| 34 | |
| 35 | #ifdef CONFIG_SCHED_DEBUG |
| 36 | static inline int autogroup_path(struct task_group *tg, char *buf, int buflen) |
| 37 | { |
| 38 | return 0; |
| 39 | } |
| 40 | #endif |
| 41 | |
| 42 | #endif /* CONFIG_SCHED_AUTOGROUP */ |