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14#ifndef _LINUX_ACCT_H
15#define _LINUX_ACCT_H
16
17#include <uapi/linux/acct.h>
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20
21#ifdef CONFIG_BSD_PROCESS_ACCT
22struct vfsmount;
23struct super_block;
24struct pacct_struct;
25struct pid_namespace;
26extern int acct_parm[];
27extern void acct_auto_close_mnt(struct vfsmount *m);
28extern void acct_auto_close(struct super_block *sb);
29extern void acct_collect(long exitcode, int group_dead);
30extern void acct_process(void);
31extern void acct_exit_ns(struct pid_namespace *);
32#else
33#define acct_auto_close_mnt(x) do { } while (0)
34#define acct_auto_close(x) do { } while (0)
35#define acct_collect(x,y) do { } while (0)
36#define acct_process() do { } while (0)
37#define acct_exit_ns(ns) do { } while (0)
38#endif
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50
51#undef ACCT_VERSION
52#undef AHZ
53
54#ifdef CONFIG_BSD_PROCESS_ACCT_V3
55#define ACCT_VERSION 3
56#define AHZ 100
57typedef struct acct_v3 acct_t;
58#else
59#ifdef CONFIG_M68K
60#define ACCT_VERSION 1
61#else
62#define ACCT_VERSION 2
63#endif
64#define AHZ (USER_HZ)
65typedef struct acct acct_t;
66#endif
67
68#include <linux/jiffies.h>
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73
74static inline u32 jiffies_to_AHZ(unsigned long x)
75{
76#if (TICK_NSEC % (NSEC_PER_SEC / AHZ)) == 0
77# if HZ < AHZ
78 return x * (AHZ / HZ);
79# else
80 return x / (HZ / AHZ);
81# endif
82#else
83 u64 tmp = (u64)x * TICK_NSEC;
84 do_div(tmp, (NSEC_PER_SEC / AHZ));
85 return (long)tmp;
86#endif
87}
88
89static inline u64 nsec_to_AHZ(u64 x)
90{
91#if (NSEC_PER_SEC % AHZ) == 0
92 do_div(x, (NSEC_PER_SEC / AHZ));
93#elif (AHZ % 512) == 0
94 x *= AHZ/512;
95 do_div(x, (NSEC_PER_SEC / 512));
96#else
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102 x *= 9;
103 do_div(x, (unsigned long)((9ull * NSEC_PER_SEC + (AHZ/2))
104 / AHZ));
105#endif
106 return x;
107}
108
109#endif
110