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
  12 static inline int dl_prio(int prio)
  13 {
  14         if (unlikely(prio < MAX_DL_PRIO))
  15                 return 1;
  16         return 0;
  17 }
  18
  19 static inline int dl_task(struct task_struct *p)
  20 {
  21         return dl_prio(p->prio);
  22 }
  23
  24 static inline bool dl_time_before(u64 a, u64 b)
  25 {
  26         return (s64)(a - b) < 0;
  27 }
  28
  29 #endif /* _SCHED_DEADLINE_H */