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EDITING: isolation.h

#ifndef _LINUX_SCHED_ISOLATION_H
#define _LINUX_SCHED_ISOLATION_H

#include <linux/cpumask.h>
#include <linux/cpuset.h>
#include <linux/init.h>
#include <linux/tick.h>

enum hk_type {
	HK_TYPE_TIMER,
	HK_TYPE_RCU,
	HK_TYPE_MISC,
	HK_TYPE_SCHED,
	HK_TYPE_TICK,
	HK_TYPE_DOMAIN,
	HK_TYPE_WQ,
	HK_TYPE_MANAGED_IRQ,
	HK_TYPE_KTHREAD,
	HK_TYPE_MAX
};

#ifdef CONFIG_CPU_ISOLATION
DECLARE_STATIC_KEY_FALSE(housekeeping_overridden);
extern int housekeeping_any_cpu(enum hk_type type);
extern const struct cpumask *housekeeping_cpumask(enum hk_type type);
extern bool housekeeping_enabled(enum hk_type type);
extern void housekeeping_affine(struct task_struct *t, enum hk_type type);
extern bool housekeeping_test_cpu(int cpu, enum hk_type type);
extern void __init housekeeping_init(void);

#else

static inline int housekeeping_any_cpu(enum hk_type type)
{
	return smp_processor_id();
}

static inline const struct cpumask *housekeeping_cpumask(enum hk_type type)
{
	return cpu_possible_mask;
}

static inline bool housekeeping_enabled(enum hk_type type)
{
	return false;
}

static inline void housekeeping_affine(struct task_struct *t,
				       enum hk_type type) { }

static inline bool housekeeping_test_cpu(int cpu, enum hk_type type)
{
	return true;
}

static inline void housekeeping_init(void) { }
#endif /* CONFIG_CPU_ISOLATION */

static inline bool housekeeping_cpu(int cpu, enum hk_type type)
{
#ifdef CONFIG_CPU_ISOLATION
	if (static_branch_unlikely(&housekeeping_overridden))
		return housekeeping_test_cpu(cpu, type);
#endif
	return true;
}

static inline bool cpu_is_isolated(int cpu)
{
	return !housekeeping_test_cpu(cpu, HK_TYPE_DOMAIN) ||
	       !housekeeping_test_cpu(cpu, HK_TYPE_TICK) ||
	       cpuset_cpu_is_isolated(cpu);
}

#endif /* _LINUX_SCHED_ISOLATION_H */

CANCEL

Name	Type	Size	Modified	Actions
↩ ..	DIR	—	—
📄 affinity.h	H	25 B	2024-03-10 20:38	EDIT
📄 autogroup.h	H	1.2 KB	2024-03-10 20:38	EDIT
📄 clock.h	H	2.7 KB	2024-03-10 20:38	EDIT
📄 cond_resched.h	H	25 B	2024-03-10 20:38	EDIT
📄 coredump.h	H	3.6 KB	2024-03-10 20:38	EDIT
📄 cpufreq.h	H	983 B	2024-03-10 20:38	EDIT
📄 cputime.h	H	5 KB	2024-03-10 20:38	EDIT
📄 deadline.h	H	780 B	2024-03-10 20:38	EDIT
📄 debug.h	H	1.4 KB	2024-03-10 20:38	EDIT
📄 hotplug.h	H	664 B	2024-03-10 20:38	EDIT
📄 idle.h	H	2.4 KB	2024-03-10 20:38	EDIT
📄 init.h	H	240 B	2024-03-10 20:38	EDIT
📄 isolation.h	H	1.7 KB	2024-03-10 20:38	EDIT
📄 jobctl.h	H	1.9 KB	2024-03-10 20:38	EDIT
📄 loadavg.h	H	1.6 KB	2024-03-10 20:38	EDIT
📄 mm.h	H	14 KB	2024-03-10 20:38	EDIT
📄 nohz.h	H	907 B	2024-03-10 20:38	EDIT
📄 numa_balancing.h	H	1.5 KB	2024-03-10 20:38	EDIT
📄 posix-timers.h	H	32 B	2024-03-10 20:38	EDIT
📄 prio.h	H	1.1 KB	2024-03-10 20:38	EDIT
📄 rseq_api.h	H	24 B	2024-03-10 20:38	EDIT
📄 rt.h	H	1.3 KB	2024-03-10 20:38	EDIT
📄 sd_flags.h	H	5.3 KB	2024-03-10 20:38	EDIT
📄 signal.h	H	21.7 KB	2024-03-10 20:38	EDIT
📄 smt.h	H	449 B	2025-11-21 22:00	EDIT
📄 stat.h	H	887 B	2024-03-10 20:38	EDIT
📄 sysctl.h	H	767 B	2024-03-10 20:38	EDIT
📄 task.h	H	6.4 KB	2025-11-21 22:00	EDIT
📄 task_flags.h	H	25 B	2024-03-10 20:38	EDIT
📄 task_stack.h	H	3.2 KB	2025-11-21 22:00	EDIT
📄 thread_info_api.h	H	31 B	2024-03-10 20:38	EDIT
📄 topology.h	H	6.9 KB	2024-03-10 20:38	EDIT
📄 types.h	H	710 B	2024-03-10 20:38	EDIT
📄 user.h	H	1.5 KB	2024-03-10 20:38	EDIT
📄 vhost_task.h	H	444 B	2025-11-21 22:00	EDIT
📄 wake_q.h	H	2.2 KB	2024-03-10 20:38	EDIT
📄 xacct.h	H	854 B	2024-03-10 20:38	EDIT