| /* |
| * 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 */ |