root/include/linux/sched/deadline.h

INCLUDED FROM

DEFINITIONS

1. dl_prio
2. dl_task
3. dl_time_before

   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 
  11 static inline int dl_prio(int prio)
  12 {
  13         if (unlikely(prio < MAX_DL_PRIO))
  14                 return 1;
  15         return 0;
  16 }
  17 
  18 static inline int dl_task(struct task_struct *p)
  19 {
  20         return dl_prio(p->prio);
  21 }
  22 
  23 static inline bool dl_time_before(u64 a, u64 b)
  24 {
  25         return (s64)(a - b) < 0;
  26 }
  27 
  28 #ifdef CONFIG_SMP
  29 
  30 struct root_domain;
  31 extern void dl_add_task_root_domain(struct task_struct *p);
  32 extern void dl_clear_root_domain(struct root_domain *rd);
  33 
  34 #endif /* CONFIG_SMP */