[mirror_ubuntu-bionic-kernel.git] / include / linux / sched / rt.h

#ifndef _LINUX_SCHED_RT_H
#define _LINUX_SCHED_RT_H

#include <linux/sched.h>

struct task_struct;

static inline int rt_prio(int prio)
{
	if (unlikely(prio < MAX_RT_PRIO))
		return 1;
	return 0;
}

static inline int rt_task(struct task_struct *p)
{
	return rt_prio(p->prio);
}

#ifdef CONFIG_RT_MUTEXES
extern int rt_mutex_getprio(struct task_struct *p);
extern void rt_mutex_setprio(struct task_struct *p, int prio);
extern int rt_mutex_get_effective_prio(struct task_struct *task, int newprio);
extern void rt_mutex_update_top_task(struct task_struct *p);
extern struct task_struct *rt_mutex_get_top_task(struct task_struct *task);
extern void rt_mutex_adjust_pi(struct task_struct *p);
static inline bool tsk_is_pi_blocked(struct task_struct *tsk)
{
	return tsk->pi_blocked_on != NULL;
}
#else
static inline int rt_mutex_getprio(struct task_struct *p)
{
	return p->normal_prio;
}

static inline int rt_mutex_get_effective_prio(struct task_struct *task,
					      int newprio)
{
	return newprio;
}

static inline struct task_struct *rt_mutex_get_top_task(struct task_struct *task)
{
	return NULL;
}
# define rt_mutex_adjust_pi(p)		do { } while (0)
static inline bool tsk_is_pi_blocked(struct task_struct *tsk)
{
	return false;
}
#endif

extern void normalize_rt_tasks(void);


/*
 * default timeslice is 100 msecs (used only for SCHED_RR tasks).
 * Timeslices get refilled after they expire.
 */
#define RR_TIMESLICE		(100 * HZ / 1000)

#endif /* _LINUX_SCHED_RT_H */
Commit	Line	Data
9ccd27cc IM	1	#ifndef _LINUX_SCHED_RT_H
9ccd27cc IM	2	#define _LINUX_SCHED_RT_H
8bd75c77	3
9ccd27cc IM	4	#include <linux/sched.h>
	5
	6	struct task_struct;
8bd75c77 CW	7
	8	static inline int rt_prio(int prio)
	9	{
	10	if (unlikely(prio < MAX_RT_PRIO))
	11	return 1;
	12	return 0;
	13	}
	14
	15	static inline int rt_task(struct task_struct *p)
	16	{
	17	return rt_prio(p->prio);
	18	}
	19
	20	#ifdef CONFIG_RT_MUTEXES
	21	extern int rt_mutex_getprio(struct task_struct *p);
	22	extern void rt_mutex_setprio(struct task_struct *p, int prio);
0782e63b	23	extern int rt_mutex_get_effective_prio(struct task_struct *task, int newprio);
e96a7705	24	extern void rt_mutex_update_top_task(struct task_struct *p);
2d3d891d	25	extern struct task_struct rt_mutex_get_top_task(struct task_struct task);
8bd75c77 CW	26	extern void rt_mutex_adjust_pi(struct task_struct *p);
	27	static inline bool tsk_is_pi_blocked(struct task_struct *tsk)
	28	{
	29	return tsk->pi_blocked_on != NULL;
	30	}
	31	#else
	32	static inline int rt_mutex_getprio(struct task_struct *p)
	33	{
	34	return p->normal_prio;
	35	}
c365c292	36
0782e63b TG	37	static inline int rt_mutex_get_effective_prio(struct task_struct *task,
0782e63b TG	38	int newprio)
c365c292	39	{
0782e63b	40	return newprio;
c365c292 TG	41	}
c365c292 TG	42
2d3d891d DF	43	static inline struct task_struct rt_mutex_get_top_task(struct task_struct task)
	44	{
	45	return NULL;
	46	}
8bd75c77 CW	47	# define rt_mutex_adjust_pi(p) do { } while (0)
	48	static inline bool tsk_is_pi_blocked(struct task_struct *tsk)
	49	{
	50	return false;
	51	}
	52	#endif
	53
	54	extern void normalize_rt_tasks(void);
	55
	56
bc681593 CW	57	/*
	58	* default timeslice is 100 msecs (used only for SCHED_RR tasks).
	59	* Timeslices get refilled after they expire.
	60	*/
	61	#define RR_TIMESLICE (100 * HZ / 1000)
	62
9ccd27cc	63	#endif /* _LINUX_SCHED_RT_H */