timer.h revision 314667 
1/*-
2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice unmodified, this list of conditions, and the following
13 *    disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29#ifndef _LINUX_TIMER_H_
30#define	_LINUX_TIMER_H_
31
32#include <linux/types.h>
33
34#include <sys/param.h>
35#include <sys/kernel.h>
36#include <sys/callout.h>
37
38struct timer_list {
39	struct callout timer_callout;
40	void    (*function) (unsigned long);
41	unsigned long data;
42	unsigned long expires;
43};
44
45extern unsigned long linux_timer_hz_mask;
46
47#define	setup_timer(timer, func, dat)					\
48do {									\
49	(timer)->function = (func);					\
50	(timer)->data = (dat);						\
51	callout_init(&(timer)->timer_callout, 1);			\
52} while (0)
53
54#define	init_timer(timer)						\
55do {									\
56	(timer)->function = NULL;					\
57	(timer)->data = 0;						\
58	callout_init(&(timer)->timer_callout, 1);			\
59} while (0)
60
61extern void mod_timer(struct timer_list *, unsigned long);
62extern void add_timer(struct timer_list *);
63
64#define	del_timer(timer)	callout_stop(&(timer)->timer_callout)
65#define	del_timer_sync(timer)	callout_drain(&(timer)->timer_callout)
66#define	timer_pending(timer)	callout_pending(&(timer)->timer_callout)
67#define	round_jiffies(j) \
68	((unsigned long)(((j) + linux_timer_hz_mask) & ~linux_timer_hz_mask))
69#define	round_jiffies_relative(j) \
70	round_jiffies(j)
71
72#endif					/* _LINUX_TIMER_H_ */
73