Release 4.7 include/linux/acct.h
/*
* BSD Process Accounting for Linux - Definitions
*
* Author: Marco van Wieringen (mvw@planets.elm.net)
*
* This header file contains the definitions needed to implement
* BSD-style process accounting. The kernel accounting code and all
* user-level programs that try to do something useful with the
* process accounting log must include this file.
*
* Copyright (C) 1995 - 1997 Marco van Wieringen - ELM Consultancy B.V.
*
*/
#ifndef _LINUX_ACCT_H
#define _LINUX_ACCT_H
#include <uapi/linux/acct.h>
#ifdef CONFIG_BSD_PROCESS_ACCT
struct vfsmount;
struct super_block;
struct pacct_struct;
struct pid_namespace;
extern int acct_parm[]; /* for sysctl */
extern void acct_collect(long exitcode, int group_dead);
extern void acct_process(void);
extern void acct_exit_ns(struct pid_namespace *);
#else
#define acct_collect(x,y) do { } while (0)
#define acct_process() do { } while (0)
#define acct_exit_ns(ns) do { } while (0)
#endif
/*
* ACCT_VERSION numbers as yet defined:
* 0: old format (until 2.6.7) with 16 bit uid/gid
* 1: extended variant (binary compatible on M68K)
* 2: extended variant (binary compatible on everything except M68K)
* 3: new binary incompatible format (64 bytes)
* 4: new binary incompatible format (128 bytes)
* 5: new binary incompatible format (128 bytes, second half)
*
*/
#undef ACCT_VERSION
#undef AHZ
#ifdef CONFIG_BSD_PROCESS_ACCT_V3
#define ACCT_VERSION 3
#define AHZ 100
typedef struct acct_v3 acct_t;
#else
#ifdef CONFIG_M68K
#define ACCT_VERSION 1
#else
#define ACCT_VERSION 2
#endif
#define AHZ (USER_HZ)
typedef struct acct acct_t;
#endif
#include <linux/jiffies.h>
/*
* Yet another set of HZ to *HZ helper functions.
* See <linux/jiffies.h> for the original.
*/
static inline u32 jiffies_to_AHZ(unsigned long x)
{
#if (TICK_NSEC % (NSEC_PER_SEC / AHZ)) == 0
# if HZ < AHZ
return x * (AHZ / HZ);
# else
return x / (HZ / AHZ);
# endif
#else
u64 tmp = (u64)x * TICK_NSEC;
do_div(tmp, (NSEC_PER_SEC / AHZ));
return (long)tmp;
#endif
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| tim schmielau | tim schmielau | 64 | 78.05% | 2 | 66.67% |
| david fries | david fries | 18 | 21.95% | 1 | 33.33% |
| Total | 82 | 100.00% | 3 | 100.00% |
static inline u64 nsec_to_AHZ(u64 x)
{
#if (NSEC_PER_SEC % AHZ) == 0
do_div(x, (NSEC_PER_SEC / AHZ));
#elif (AHZ % 512) == 0
x *= AHZ/512;
do_div(x, (NSEC_PER_SEC / 512));
#else
/*
* max relative error 5.7e-8 (1.8s per year) for AHZ <= 1024,
* overflow after 64.99 years.
* exact for AHZ=60, 72, 90, 120, 144, 180, 300, 600, 900, ...
*/
x *= 9;
do_div(x, (unsigned long)((9ull * NSEC_PER_SEC + (AHZ/2))
/ AHZ));
#endif
return x;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| tim schmielau | tim schmielau | 93 | 100.00% | 2 | 100.00% |
| Total | 93 | 100.00% | 2 | 100.00% |
#endif /* _LINUX_ACCT_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| tim schmielau | tim schmielau | 203 | 64.24% | 3 | 17.65% |
| pre-git | pre-git | 29 | 9.18% | 3 | 17.65% |
| kaigai kohei | kaigai kohei | 22 | 6.96% | 2 | 11.76% |
| pavel emelianov | pavel emelianov | 19 | 6.01% | 1 | 5.88% |
| david fries | david fries | 18 | 5.70% | 1 | 5.88% |
| al viro | al viro | 9 | 2.85% | 3 | 17.65% |
| david howells | david howells | 7 | 2.22% | 2 | 11.76% |
| dave young | dave young | 6 | 1.90% | 1 | 5.88% |
| david woodhouse | david woodhouse | 3 | 0.95% | 1 | 5.88% |
| Total | 316 | 100.00% | 17 | 100.00% |
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