| /* |
| * 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_TIMER_H |
| #define _SPL_TIMER_H |
| |
| #include <linux/module.h> |
| #include <linux/delay.h> |
| #include <linux/sched.h> |
| #include <linux/time.h> |
| #include <linux/timer.h> |
| |
| #define lbolt ((clock_t)jiffies) |
| #define lbolt64 ((int64_t)get_jiffies_64()) |
| |
| #define ddi_get_lbolt() ((clock_t)jiffies) |
| #define ddi_get_lbolt64() ((int64_t)get_jiffies_64()) |
| |
| #define ddi_time_before(a, b) (typecheck(clock_t, a) && \ |
| typecheck(clock_t, b) && \ |
| ((a) - (b) < 0)) |
| #define ddi_time_after(a, b) ddi_time_before(b, a) |
| #define ddi_time_before_eq(a, b) (!ddi_time_after(a, b)) |
| #define ddi_time_after_eq(a, b) ddi_time_before_eq(b, a) |
| |
| #define ddi_time_before64(a, b) (typecheck(int64_t, a) && \ |
| typecheck(int64_t, b) && \ |
| ((a) - (b) < 0)) |
| #define ddi_time_after64(a, b) ddi_time_before64(b, a) |
| #define ddi_time_before_eq64(a, b) (!ddi_time_after64(a, b)) |
| #define ddi_time_after_eq64(a, b) ddi_time_before_eq64(b, a) |
| |
| #define delay(ticks) schedule_timeout_uninterruptible(ticks) |
| |
| /* usleep_range() introduced in 2.6.36 */ |
| #ifndef HAVE_USLEEP_RANGE |
| static inline void |
| usleep_range(unsigned long min, unsigned long max) |
| { |
| unsigned int min_ms = min / USEC_PER_MSEC; |
| |
| if (min >= MAX_UDELAY_MS) |
| msleep(min_ms); |
| else |
| udelay(min); |
| } |
| #endif /* HAVE_USLEEP_RANGE */ |
| |
| #define SEC_TO_TICK(sec) ((sec) * HZ) |
| #define MSEC_TO_TICK(ms) msecs_to_jiffies(ms) |
| #define USEC_TO_TICK(us) usecs_to_jiffies(us) |
| #define NSEC_TO_TICK(ns) usecs_to_jiffies(ns / NSEC_PER_USEC) |
| |
| #ifndef from_timer |
| #define from_timer(var, timer, timer_field) \ |
| container_of(timer, typeof(*var), timer_field) |
| #endif |
| |
| #ifdef HAVE_KERNEL_TIMER_FUNCTION_TIMER_LIST |
| typedef struct timer_list *spl_timer_list_t; |
| #else |
| typedef unsigned long spl_timer_list_t; |
| #endif |
| |
| #ifndef HAVE_KERNEL_TIMER_SETUP |
| |
| static inline void |
| timer_setup(struct timer_list *timer, void (*func)(spl_timer_list_t), u32 fl) |
| { |
| #ifdef HAVE_KERNEL_TIMER_LIST_FLAGS |
| (timer)->flags = fl; |
| #endif |
| init_timer(timer); |
| setup_timer(timer, func, (spl_timer_list_t)(timer)); |
| } |
| |
| #endif /* HAVE_KERNEL_TIMER_SETUP */ |
| |
| #endif /* _SPL_TIMER_H */ |