Contributors: 12
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Frédéric Weisbecker |
180 |
61.43% |
11 |
45.83% |
| Waiman Long |
26 |
8.87% |
2 |
8.33% |
| Paul E. McKenney |
23 |
7.85% |
1 |
4.17% |
| Chris Metcalf |
20 |
6.83% |
2 |
8.33% |
| Wanpeng Li |
19 |
6.48% |
1 |
4.17% |
| Vatika Harlalka |
10 |
3.41% |
1 |
4.17% |
| Peter Zijlstra |
4 |
1.37% |
1 |
4.17% |
| Paul Jackson |
3 |
1.02% |
1 |
4.17% |
| Linus Torvalds (pre-git) |
3 |
1.02% |
1 |
4.17% |
| Marcelo Tosatti |
2 |
0.68% |
1 |
4.17% |
| Ingo Molnar |
2 |
0.68% |
1 |
4.17% |
| Gregory Haskins |
1 |
0.34% |
1 |
4.17% |
| Total |
293 |
|
24 |
|
#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_DOMAIN,
HK_TYPE_MANAGED_IRQ,
HK_TYPE_KERNEL_NOISE,
HK_TYPE_MAX,
/*
* The following housekeeping types are only set by the nohz_full
* boot commandline option. So they can share the same value.
*/
HK_TYPE_TICK = HK_TYPE_KERNEL_NOISE,
HK_TYPE_TIMER = HK_TYPE_KERNEL_NOISE,
HK_TYPE_RCU = HK_TYPE_KERNEL_NOISE,
HK_TYPE_MISC = HK_TYPE_KERNEL_NOISE,
HK_TYPE_WQ = HK_TYPE_KERNEL_NOISE,
HK_TYPE_KTHREAD = HK_TYPE_KERNEL_NOISE
};
#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 */