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 */ 33