linux/include/linux/acct.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 *  BSD Process Accounting for Linux - Definitions
 *
 *  Author: Marco van Wieringen ([email protected])
 *
 *  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 pid_namespace;
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 …
#define acct_process …
#define acct_exit_ns …
#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 …
#define AHZ …
acct_t;
#else
#ifdef CONFIG_M68K
#define ACCT_VERSION …
#else
#define ACCT_VERSION …
#endif
#define AHZ …
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)
{ … }

static inline u64 nsec_to_AHZ(u64 x)
{ … }

#endif	/* _LINUX_ACCT_H */