include/linux/sched/deadline.h

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