1#ifndef _SCHED_RT_H
2#define _SCHED_RT_H
3
4#include <linux/sched/prio.h>
5
6static inline int rt_prio(int prio)
7{
8	if (unlikely(prio < MAX_RT_PRIO))
9		return 1;
10	return 0;
11}
12
13static inline int rt_task(struct task_struct *p)
14{
15	return rt_prio(p->prio);
16}
17
18#ifdef CONFIG_RT_MUTEXES
19extern int rt_mutex_getprio(struct task_struct *p);
20extern void rt_mutex_setprio(struct task_struct *p, int prio);
21extern int rt_mutex_get_effective_prio(struct task_struct *task, int newprio);
22extern struct task_struct *rt_mutex_get_top_task(struct task_struct *task);
23extern void rt_mutex_adjust_pi(struct task_struct *p);
24static inline bool tsk_is_pi_blocked(struct task_struct *tsk)
25{
26	return tsk->pi_blocked_on != NULL;
27}
28#else
29static inline int rt_mutex_getprio(struct task_struct *p)
30{
31	return p->normal_prio;
32}
33
34static inline int rt_mutex_get_effective_prio(struct task_struct *task,
35					      int newprio)
36{
37	return newprio;
38}
39
40static inline struct task_struct *rt_mutex_get_top_task(struct task_struct *task)
41{
42	return NULL;
43}
44# define rt_mutex_adjust_pi(p)		do { } while (0)
45static inline bool tsk_is_pi_blocked(struct task_struct *tsk)
46{
47	return false;
48}
49#endif
50
51extern void normalize_rt_tasks(void);
52
53
54/*
55 * default timeslice is 100 msecs (used only for SCHED_RR tasks).
56 * Timeslices get refilled after they expire.
57 */
58#define RR_TIMESLICE		(100 * HZ / 1000)
59
60#endif /* _SCHED_RT_H */
61