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 dl_prio(int prio)11static inline int dl_prio(int prio) 12 { 13 if (unlikely(prio < MAX_DL_PRIO)) 14 return 1; 15 return 0; 16 } 17 dl_task(struct task_struct * p)18static inline int dl_task(struct task_struct *p) 19 { 20 return dl_prio(p->prio); 21 } 22 dl_time_before(u64 a,u64 b)23static 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 */ 35