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

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