linux/kernel/sched_autogroup.h
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   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 struct task_group *
  17autogroup_task_group(struct task_struct *p, struct task_group *tg);
  18
  19#else /* !CONFIG_SCHED_AUTOGROUP */
  20
  21static inline void autogroup_init(struct task_struct *init_task) {  }
  22static inline void autogroup_free(struct task_group *tg) { }
  23static inline bool task_group_is_autogroup(struct task_group *tg)
  24{
  25        return 0;
  26}
  27
  28static inline struct task_group *
  29autogroup_task_group(struct task_struct *p, struct task_group *tg)
  30{
  31        return tg;
  32}
  33
  34#ifdef CONFIG_SCHED_DEBUG
  35static inline int autogroup_path(struct task_group *tg, char *buf, int buflen)
  36{
  37        return 0;
  38}
  39#endif
  40
  41#endif /* CONFIG_SCHED_AUTOGROUP */
  42