Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
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_check_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_check_prio(struct task_struct *task, int newprio)
35{
36 return 0;
37}
38
39static inline struct task_struct *rt_mutex_get_top_task(struct task_struct *task)
40{
41 return NULL;
42}
43# define rt_mutex_adjust_pi(p) do { } while (0)
44static inline bool tsk_is_pi_blocked(struct task_struct *tsk)
45{
46 return false;
47}
48#endif
49
50extern void normalize_rt_tasks(void);
51
52
53/*
54 * default timeslice is 100 msecs (used only for SCHED_RR tasks).
55 * Timeslices get refilled after they expire.
56 */
57#define RR_TIMESLICE (100 * HZ / 1000)
58
59#endif /* _SCHED_RT_H */