blob: 4309c300b2683b1c522167a2fc53549e9b70dfa6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/*
* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
* Copyright (C) 2007 The Regents of the University of California.
* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
* UCRL-CODE-235197
*
* This file is part of the SPL, Solaris Porting Layer.
* For details, see <http://zfsonlinux.org/>.
*
* The SPL is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* The SPL is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with the SPL. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _SPL_TIME_H
#define _SPL_TIME_H
#include <linux/module.h>
#include <linux/time.h>
#include <sys/types.h>
#include <sys/timer.h>
#if defined(CONFIG_64BIT)
#define TIME_MAX INT64_MAX
#define TIME_MIN INT64_MIN
#else
#define TIME_MAX INT32_MAX
#define TIME_MIN INT32_MIN
#endif
#define SEC 1
#define MILLISEC 1000
#define MICROSEC 1000000
#define NANOSEC 1000000000
#define MSEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / MILLISEC))
#define NSEC2MSEC(n) ((n) / (NANOSEC / MILLISEC))
#define USEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / MICROSEC))
#define NSEC2USEC(n) ((n) / (NANOSEC / MICROSEC))
#define NSEC2SEC(n) ((n) / (NANOSEC / SEC))
#define SEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / SEC))
static const int hz = HZ;
typedef longlong_t hrtime_t;
typedef struct timespec timespec_t;
#define TIMESPEC_OVERFLOW(ts) \
((ts)->tv_sec < TIME_MIN || (ts)->tv_sec > TIME_MAX)
#if defined(HAVE_INODE_TIMESPEC64_TIMES)
typedef struct timespec64 inode_timespec_t;
#else
typedef struct timespec inode_timespec_t;
#endif
/* Include for Lustre compatibility */
#define timestruc_t inode_timespec_t
static inline void
gethrestime(inode_timespec_t *ts)
{
#if defined(HAVE_INODE_TIMESPEC64_TIMES)
#if defined(HAVE_KTIME_GET_COARSE_REAL_TS64)
ktime_get_coarse_real_ts64(ts);
#else
*ts = current_kernel_time64();
#endif /* HAVE_KTIME_GET_COARSE_REAL_TS64 */
#else
*ts = current_kernel_time();
#endif
}
static inline uint64_t
gethrestime_sec(void)
{
#if defined(HAVE_INODE_TIMESPEC64_TIMES)
#if defined(HAVE_KTIME_GET_COARSE_REAL_TS64)
inode_timespec_t ts;
ktime_get_coarse_real_ts64(&ts);
#else
inode_timespec_t ts = current_kernel_time64();
#endif /* HAVE_KTIME_GET_COARSE_REAL_TS64 */
#else
inode_timespec_t ts = current_kernel_time();
#endif
return (ts.tv_sec);
}
static inline hrtime_t
gethrtime(void)
{
#if defined(HAVE_KTIME_GET_RAW_TS64)
struct timespec64 ts;
ktime_get_raw_ts64(&ts);
#else
struct timespec ts;
getrawmonotonic(&ts);
#endif
return (((hrtime_t)ts.tv_sec * NSEC_PER_SEC) + ts.tv_nsec);
}
#endif /* _SPL_TIME_H */
|
