LXR linux/include/linux/sched/deadline.h

   1#ifndef _SCHED_DEADLINE_H
   2#define _SCHED_DEADLINE_H
   3
   4/*
   5 * SCHED_DEADLINE tasks has negative priorities, reflecting
   6 * the fact that any of them has higher prio than RT and
   7 * NORMAL/BATCH tasks.
   8 */
   9
  10#define MAX_DL_PRIO             0
  11
  12static inline int dl_prio(int prio)
  13{
  14        if (unlikely(prio < MAX_DL_PRIO))
  15                return 1;
  16        return 0;
  17}
  18
  19static inline int dl_task(struct task_struct *p)
  20{
  21        return dl_prio(p->prio);
  22}
  23
  24static inline bool dl_time_before(u64 a, u64 b)
  25{
  26        return (s64)(a - b) < 0;
  27}
  28
  29#endif /* _SCHED_DEADLINE_H */
  30