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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485/* SPDX-License-Identifier: GPL-2.0 */#ifndef _LINUX_SCHED_RT_H#define _LINUX_SCHED_RT_H
#include <linux/sched.h>
struct task_struct;
static inline bool rt_prio(int prio){ return unlikely(prio < MAX_RT_PRIO && prio >= MAX_DL_PRIO);}
static inline bool rt_or_dl_prio(int prio){ return unlikely(prio < MAX_RT_PRIO);}
/* * Returns true if a task has a priority that belongs to RT class. PI-boosted * tasks will return true. Use rt_policy() to ignore PI-boosted tasks. */static inline bool rt_task(struct task_struct *p){ return rt_prio(p->prio);}
/* * Returns true if a task has a priority that belongs to RT or DL classes. * PI-boosted tasks will return true. Use rt_or_dl_task_policy() to ignore * PI-boosted tasks. */static inline bool rt_or_dl_task(struct task_struct *p){ return rt_or_dl_prio(p->prio);}
/* * Returns true if a task has a policy that belongs to RT or DL classes. * PI-boosted tasks will return false. */static inline bool rt_or_dl_task_policy(struct task_struct *tsk){ int policy = tsk->policy;
if (policy == SCHED_FIFO || policy == SCHED_RR) return true; if (policy == SCHED_DEADLINE) return true; return false;}
#ifdef CONFIG_RT_MUTEXESextern void rt_mutex_pre_schedule(void);extern void rt_mutex_schedule(void);extern void rt_mutex_post_schedule(void);
/* * Must hold either p->pi_lock or task_rq(p)->lock. */static inline struct task_struct *rt_mutex_get_top_task(struct task_struct *p){ return p->pi_top_task;}extern void rt_mutex_setprio(struct task_struct *p, struct task_struct *pi_task);extern void rt_mutex_adjust_pi(struct task_struct *p);#elsestatic inline struct task_struct *rt_mutex_get_top_task(struct task_struct *task){ return NULL;}# define rt_mutex_adjust_pi(p) do { } while (0)#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 */