kernel/sched_autogroup.h

   1 #ifdef CONFIG_SCHED_AUTOGROUP
   2
   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;
  14 };
  15
  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);
  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) { }
  24 static inline bool task_group_is_autogroup(struct task_group *tg)
  25 {
  26         return 0;
  27 }
  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 */