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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_SCHED_DEADLINE_H #define _LINUX_SCHED_DEADLINE_H /* * SCHED_DEADLINE tasks has negative priorities, reflecting * the fact that any of them has higher prio than RT and * NORMAL/BATCH tasks. */ #include <linux/sched.h> static inline bool dl_prio(int prio) { return unlikely(prio < MAX_DL_PRIO); } /* * Returns true if a task has a priority that belongs to DL class. PI-boosted * tasks will return true. Use dl_policy() to ignore PI-boosted tasks. */ static inline bool dl_task(struct task_struct *p) { return dl_prio(p->prio); } static inline bool dl_time_before(u64 a, u64 b) { return (s64)(a - b) < 0; } #ifdef CONFIG_SMP struct root_domain; extern void dl_add_task_root_domain(struct task_struct *p); extern void dl_clear_root_domain(struct root_domain *rd); extern void dl_clear_root_domain_cpu(int cpu); #endif /* CONFIG_SMP */ extern u64 dl_cookie; extern bool dl_bw_visited(int cpu, u64 cookie); #endif /* _LINUX_SCHED_DEADLINE_H */