um: switch to use of drivers/Kconfig
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / kernel / sched_autogroup.h
blobc2f0e7248dca354bc2e96ea95984c3457d28e75d
1 #ifdef CONFIG_SCHED_AUTOGROUP
3 struct autogroup {
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 */
9 struct kref kref;
10 struct task_group *tg;
11 struct rw_semaphore lock;
12 unsigned long id;
13 int nice;
16 static inline bool task_group_is_autogroup(struct task_group *tg);
17 static inline struct task_group *
18 autogroup_task_group(struct task_struct *p, struct task_group *tg);
20 #else /* !CONFIG_SCHED_AUTOGROUP */
22 static inline void autogroup_init(struct task_struct *init_task) { }
23 static inline void autogroup_free(struct task_group *tg) { }
24 static inline bool task_group_is_autogroup(struct task_group *tg)
26 return 0;
29 static inline struct task_group *
30 autogroup_task_group(struct task_struct *p, struct task_group *tg)
32 return tg;
35 #ifdef CONFIG_SCHED_DEBUG
36 static inline int autogroup_path(struct task_group *tg, char *buf, int buflen)
38 return 0;
40 #endif
42 #endif /* CONFIG_SCHED_AUTOGROUP */