1219820Sjeff/*- 2219820Sjeff * Copyright (c) 2010 Isilon Systems, Inc. 3219820Sjeff * Copyright (c) 2010 iX Systems, Inc. 4219820Sjeff * Copyright (c) 2010 Panasas, Inc. 5219820Sjeff * All rights reserved. 6219820Sjeff * 7219820Sjeff * Redistribution and use in source and binary forms, with or without 8219820Sjeff * modification, are permitted provided that the following conditions 9219820Sjeff * are met: 10219820Sjeff * 1. Redistributions of source code must retain the above copyright 11219820Sjeff * notice unmodified, this list of conditions, and the following 12219820Sjeff * disclaimer. 13219820Sjeff * 2. Redistributions in binary form must reproduce the above copyright 14219820Sjeff * notice, this list of conditions and the following disclaimer in the 15219820Sjeff * documentation and/or other materials provided with the distribution. 16219820Sjeff * 17219820Sjeff * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18219820Sjeff * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19219820Sjeff * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20219820Sjeff * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21219820Sjeff * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22219820Sjeff * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23219820Sjeff * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24219820Sjeff * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25219820Sjeff * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26219820Sjeff * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27219820Sjeff */ 28219820Sjeff#ifndef _LINUX_TIMER_H_ 29219820Sjeff#define _LINUX_TIMER_H_ 30219820Sjeff 31219820Sjeff#include <linux/types.h> 32219820Sjeff 33219820Sjeff#include <sys/param.h> 34219820Sjeff#include <sys/kernel.h> 35219820Sjeff#include <sys/callout.h> 36219820Sjeff 37219820Sjeffstruct timer_list { 38219820Sjeff struct callout timer_callout; 39219820Sjeff void (*function)(unsigned long); 40219820Sjeff unsigned long data; 41219820Sjeff}; 42219820Sjeff 43219820Sjeff#define expires timer_callout.c_time 44219820Sjeff 45219820Sjeffstatic inline void 46219820Sjeff_timer_fn(void *context) 47219820Sjeff{ 48219820Sjeff struct timer_list *timer; 49219820Sjeff 50219820Sjeff timer = context; 51219820Sjeff timer->function(timer->data); 52219820Sjeff} 53219820Sjeff 54219820Sjeff#define setup_timer(timer, func, dat) \ 55219820Sjeffdo { \ 56219820Sjeff (timer)->function = (func); \ 57219820Sjeff (timer)->data = (dat); \ 58219820Sjeff callout_init(&(timer)->timer_callout, CALLOUT_MPSAFE); \ 59219820Sjeff} while (0) 60219820Sjeff 61219820Sjeff#define init_timer(timer) \ 62219820Sjeffdo { \ 63219820Sjeff (timer)->function = NULL; \ 64219820Sjeff (timer)->data = 0; \ 65219820Sjeff callout_init(&(timer)->timer_callout, CALLOUT_MPSAFE); \ 66219820Sjeff} while (0) 67219820Sjeff 68219820Sjeff#define mod_timer(timer, expire) \ 69219820Sjeff callout_reset(&(timer)->timer_callout, (expire) - jiffies, \ 70219820Sjeff _timer_fn, (timer)) 71219820Sjeff 72219820Sjeff#define add_timer(timer) \ 73219820Sjeff callout_reset(&(timer)->timer_callout, \ 74219820Sjeff (timer)->timer_callout.c_time - jiffies, _timer_fn, (timer)) 75219820Sjeff 76219820Sjeff#define del_timer(timer) callout_stop(&(timer)->timer_callout) 77219820Sjeff#define del_timer_sync(timer) callout_drain(&(timer)->timer_callout) 78219820Sjeff 79219820Sjeff#define timer_pending(timer) callout_pending(&(timer)->timer_callout) 80219820Sjeff 81219820Sjeffstatic inline unsigned long 82219820Sjeffround_jiffies(unsigned long j) 83219820Sjeff{ 84219820Sjeff return roundup(j, hz); 85219820Sjeff} 86219820Sjeff 87219820Sjeff#endif /* _LINUX_TIMER_H_ */ 88