include/linux/sched/deadline.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _LINUX_SCHED_DEADLINE_H
   3 #define _LINUX_SCHED_DEADLINE_H
   4
   5 #include <linux/sched.h>
   6
   7 /*
   8  * SCHED_DEADLINE tasks has negative priorities, reflecting
   9  * the fact that any of them has higher prio than RT and
  10  * NORMAL/BATCH tasks.
  11  */
  12
  13 #define MAX_DL_PRIO             0
  14
  15 static inline int dl_prio(int prio)
  16 {
  17         if (unlikely(prio < MAX_DL_PRIO))
  18                 return 1;
  19         return 0;
  20 }
  21
  22 static inline int dl_task(struct task_struct *p)
  23 {
  24         return dl_prio(p->prio);
  25 }
  26
  27 static inline bool dl_time_before(u64 a, u64 b)
  28 {
  29         return (s64)(a - b) < 0;
  30 }
  31
  32 #endif /* _LINUX_SCHED_DEADLINE_H */