LXR linux/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
  15static inline int dl_prio(int prio)
  16{
  17        if (unlikely(prio < MAX_DL_PRIO))
  18                return 1;
  19        return 0;
  20}
  21
  22static inline int dl_task(struct task_struct *p)
  23{
  24        return dl_prio(p->prio);
  25}
  26
  27static inline bool dl_time_before(u64 a, u64 b)
  28{
  29        return (s64)(a - b) < 0;
  30}
  31
  32#endif /* _LINUX_SCHED_DEADLINE_H */
  33