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