Contributors: 25
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Frédéric Weisbecker |
139 |
24.13% |
12 |
19.05% |
| Zhen Lei |
48 |
8.33% |
3 |
4.76% |
| Glauber de Oliveira Costa |
46 |
7.99% |
1 |
1.59% |
| Linus Torvalds (pre-git) |
43 |
7.47% |
11 |
17.46% |
| Andrew Morton |
41 |
7.12% |
3 |
4.76% |
| Martin Schwidefsky |
39 |
6.77% |
2 |
3.17% |
| Keika Kobayashi |
35 |
6.08% |
1 |
1.59% |
| Yinghai Lu |
30 |
5.21% |
3 |
4.76% |
| Bitao Hu |
25 |
4.34% |
1 |
1.59% |
| Thomas Gleixner |
20 |
3.47% |
7 |
11.11% |
| Kamezawa Hiroyuki |
20 |
3.47% |
2 |
3.17% |
| Roland McGrath |
20 |
3.47% |
1 |
1.59% |
| Josh Don |
16 |
2.78% |
2 |
3.17% |
| Ingo Molnar |
14 |
2.43% |
2 |
3.17% |
| Michael Neuling |
9 |
1.56% |
1 |
1.59% |
| Linus Torvalds |
7 |
1.22% |
1 |
1.59% |
| Alexey Dobriyan |
7 |
1.22% |
2 |
3.17% |
| Alan Mayer |
5 |
0.87% |
1 |
1.59% |
| Eric Dumazet |
4 |
0.69% |
1 |
1.59% |
| Christoph Lameter |
2 |
0.35% |
1 |
1.59% |
| Michal Hocko |
2 |
0.35% |
1 |
1.59% |
| Greg Kroah-Hartman |
1 |
0.17% |
1 |
1.59% |
| Paul Mackerras |
1 |
0.17% |
1 |
1.59% |
| Ryota Ozaki |
1 |
0.17% |
1 |
1.59% |
| Rusty Russell |
1 |
0.17% |
1 |
1.59% |
| Total |
576 |
|
63 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_KERNEL_STAT_H
#define _LINUX_KERNEL_STAT_H
#include <linux/smp.h>
#include <linux/threads.h>
#include <linux/percpu.h>
#include <linux/cpumask.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <linux/vtime.h>
#include <asm/irq.h>
/*
* 'kernel_stat.h' contains the definitions needed for doing
* some kernel statistics (CPU usage, context switches ...),
* used by rstatd/perfmeter
*/
enum cpu_usage_stat {
CPUTIME_USER,
CPUTIME_NICE,
CPUTIME_SYSTEM,
CPUTIME_SOFTIRQ,
CPUTIME_IRQ,
CPUTIME_IDLE,
CPUTIME_IOWAIT,
CPUTIME_STEAL,
CPUTIME_GUEST,
CPUTIME_GUEST_NICE,
#ifdef CONFIG_SCHED_CORE
CPUTIME_FORCEIDLE,
#endif
NR_STATS,
};
struct kernel_cpustat {
u64 cpustat[NR_STATS];
};
struct kernel_stat {
unsigned long irqs_sum;
unsigned int softirqs[NR_SOFTIRQS];
};
DECLARE_PER_CPU(struct kernel_stat, kstat);
DECLARE_PER_CPU(struct kernel_cpustat, kernel_cpustat);
/* Must have preemption disabled for this to be meaningful. */
#define kstat_this_cpu this_cpu_ptr(&kstat)
#define kcpustat_this_cpu this_cpu_ptr(&kernel_cpustat)
#define kstat_cpu(cpu) per_cpu(kstat, cpu)
#define kcpustat_cpu(cpu) per_cpu(kernel_cpustat, cpu)
extern unsigned long long nr_context_switches_cpu(int cpu);
extern unsigned long long nr_context_switches(void);
extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu);
extern void kstat_incr_irq_this_cpu(unsigned int irq);
static inline void kstat_incr_softirqs_this_cpu(unsigned int irq)
{
__this_cpu_inc(kstat.softirqs[irq]);
}
static inline unsigned int kstat_softirqs_cpu(unsigned int irq, int cpu)
{
return kstat_cpu(cpu).softirqs[irq];
}
static inline unsigned int kstat_cpu_softirqs_sum(int cpu)
{
int i;
unsigned int sum = 0;
for (i = 0; i < NR_SOFTIRQS; i++)
sum += kstat_softirqs_cpu(i, cpu);
return sum;
}
#ifdef CONFIG_GENERIC_IRQ_STAT_SNAPSHOT
extern void kstat_snapshot_irqs(void);
extern unsigned int kstat_get_irq_since_snapshot(unsigned int irq);
#else
static inline void kstat_snapshot_irqs(void) { }
static inline unsigned int kstat_get_irq_since_snapshot(unsigned int irq) { return 0; }
#endif
/*
* Number of interrupts per specific IRQ source, since bootup
*/
extern unsigned int kstat_irqs_usr(unsigned int irq);
/*
* Number of interrupts per cpu, since bootup
*/
static inline unsigned long kstat_cpu_irqs_sum(unsigned int cpu)
{
return kstat_cpu(cpu).irqs_sum;
}
#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN
extern u64 kcpustat_field(struct kernel_cpustat *kcpustat,
enum cpu_usage_stat usage, int cpu);
extern void kcpustat_cpu_fetch(struct kernel_cpustat *dst, int cpu);
#else
static inline u64 kcpustat_field(struct kernel_cpustat *kcpustat,
enum cpu_usage_stat usage, int cpu)
{
return kcpustat->cpustat[usage];
}
static inline void kcpustat_cpu_fetch(struct kernel_cpustat *dst, int cpu)
{
*dst = kcpustat_cpu(cpu);
}
#endif
extern void account_user_time(struct task_struct *, u64);
extern void account_guest_time(struct task_struct *, u64);
extern void account_system_time(struct task_struct *, int, u64);
extern void account_system_index_time(struct task_struct *, u64,
enum cpu_usage_stat);
extern void account_steal_time(u64);
extern void account_idle_time(u64);
extern u64 get_idle_time(struct kernel_cpustat *kcs, int cpu);
#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
static inline void account_process_tick(struct task_struct *tsk, int user)
{
vtime_flush(tsk);
}
#else
extern void account_process_tick(struct task_struct *, int user);
#endif
extern void account_idle_ticks(unsigned long ticks);
#ifdef CONFIG_SCHED_CORE
extern void __account_forceidle_time(struct task_struct *tsk, u64 delta);
#endif
#endif /* _LINUX_KERNEL_STAT_H */