LXR linux/kernel/sched

   1#ifdef CONFIG_SCHED_AUTOGROUP
   2
   3struct 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;
  14};
  15
  16static inline bool task_group_is_autogroup(struct task_group *tg);
  17static inline struct task_group *
  18autogroup_task_group(struct task_struct *p, struct task_group *tg);
  19
  20#else /* !CONFIG_SCHED_AUTOGROUP */
  21
  22static inline void autogroup_init(struct task_struct *init_task) {  }
  23static inline void autogroup_free(struct task_group *tg) { }
  24static inline bool task_group_is_autogroup(struct task_group *tg)
  25{
  26        return 0;
  27}
  28
  29static inline struct task_group *
  30autogroup_task_group(struct task_struct *p, struct task_group *tg)
  31{
  32        return tg;
  33}
  34
  35#ifdef CONFIG_SCHED_DEBUG
  36static 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 */
  43