This source file includes following definitions.
- rt_prio
- rt_task
- task_is_realtime
- rt_mutex_get_top_task
- tsk_is_pi_blocked
- rt_mutex_get_top_task
- tsk_is_pi_blocked
1
2 #ifndef _LINUX_SCHED_RT_H
3 #define _LINUX_SCHED_RT_H
4
5 #include <linux/sched.h>
6
7 struct task_struct;
8
9 static inline int rt_prio(int prio)
10 {
11 if (unlikely(prio < MAX_RT_PRIO))
12 return 1;
13 return 0;
14 }
15
16 static inline int rt_task(struct task_struct *p)
17 {
18 return rt_prio(p->prio);
19 }
20
21 static inline bool task_is_realtime(struct task_struct *tsk)
22 {
23 int policy = tsk->policy;
24
25 if (policy == SCHED_FIFO || policy == SCHED_RR)
26 return true;
27 if (policy == SCHED_DEADLINE)
28 return true;
29 return false;
30 }
31
32 #ifdef CONFIG_RT_MUTEXES
33
34
35
36 static inline struct task_struct *rt_mutex_get_top_task(struct task_struct *p)
37 {
38 return p->pi_top_task;
39 }
40 extern void rt_mutex_setprio(struct task_struct *p, struct task_struct *pi_task);
41 extern void rt_mutex_adjust_pi(struct task_struct *p);
42 static inline bool tsk_is_pi_blocked(struct task_struct *tsk)
43 {
44 return tsk->pi_blocked_on != NULL;
45 }
46 #else
47 static inline struct task_struct *rt_mutex_get_top_task(struct task_struct *task)
48 {
49 return NULL;
50 }
51 # define rt_mutex_adjust_pi(p) do { } while (0)
52 static inline bool tsk_is_pi_blocked(struct task_struct *tsk)
53 {
54 return false;
55 }
56 #endif
57
58 extern void normalize_rt_tasks(void);
59
60
61
62
63
64
65 #define RR_TIMESLICE (100 * HZ / 1000)
66
67 #endif