| /* |
| * GPL HEADER START |
| * |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 only, |
| * as published by the Free Software Foundation. |
| * |
| * This program 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 version 2 for more details (a copy is included |
| * in the LICENSE file that accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License |
| * version 2 along with this program; If not, see |
| * http://www.gnu.org/licenses/gpl-2.0.html |
| * |
| * GPL HEADER END |
| */ |
| /* |
| * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. |
| * Use is subject to license terms. |
| */ |
| /* |
| * This file is part of Lustre, http://www.lustre.org/ |
| * Lustre is a trademark of Sun Microsystems, Inc. |
| * |
| * libcfs/include/libcfs/linux/linux-time.h |
| * |
| * Implementation of portable time API for Linux (kernel and user-level). |
| * |
| * Author: Nikita Danilov <nikita@clusterfs.com> |
| */ |
| |
| #ifndef __LIBCFS_LINUX_LINUX_TIME_H__ |
| #define __LIBCFS_LINUX_LINUX_TIME_H__ |
| |
| #ifndef __LIBCFS_LIBCFS_H__ |
| #error Do not #include this file directly. #include <linux/libcfs/libcfs.h> instead |
| #endif |
| |
| #define ONE_BILLION ((u_int64_t)1000000000) |
| #define ONE_MILLION 1000000 |
| |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/time.h> |
| #include <asm/div64.h> |
| |
| /* |
| * post 2.5 kernels. |
| */ |
| |
| #include <linux/jiffies.h> |
| |
| /* |
| * Generic kernel stuff |
| */ |
| |
| static inline unsigned long cfs_time_current(void) |
| { |
| return jiffies; |
| } |
| |
| static inline long cfs_time_seconds(int seconds) |
| { |
| return ((long)seconds) * msecs_to_jiffies(MSEC_PER_SEC); |
| } |
| |
| static inline long cfs_duration_sec(long d) |
| { |
| return d / msecs_to_jiffies(MSEC_PER_SEC); |
| } |
| |
| #define cfs_time_current_64 get_jiffies_64 |
| |
| static inline __u64 cfs_time_add_64(__u64 t, __u64 d) |
| { |
| return t + d; |
| } |
| |
| static inline __u64 cfs_time_shift_64(int seconds) |
| { |
| return cfs_time_add_64(cfs_time_current_64(), |
| cfs_time_seconds(seconds)); |
| } |
| |
| static inline int cfs_time_before_64(__u64 t1, __u64 t2) |
| { |
| return (__s64)t2 - (__s64)t1 > 0; |
| } |
| |
| static inline int cfs_time_beforeq_64(__u64 t1, __u64 t2) |
| { |
| return (__s64)t2 - (__s64)t1 >= 0; |
| } |
| |
| /* |
| * One jiffy |
| */ |
| #define CFS_TICK (1) |
| |
| #define CFS_DURATION_T "%ld" |
| |
| #endif /* __LIBCFS_LINUX_LINUX_TIME_H__ */ |
