blob: fcb4a899c722d383eeb490f868268ffac0592797 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
/*
* Copyright (c) 2006 Cisco Systems. All rights reserved.
*
* This file is released under the GPLv2.
*/
/* mutex compatibility for pre-2.6.16 kernels */
#ifndef __LINUX_MUTEX_H
#define __LINUX_MUTEX_H
#include <linux/version.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
#error "This version of Linux should not need compat mutex.h"
#endif
#include <linux/version.h>
#include <asm/semaphore.h>
#define mutex semaphore
#define DEFINE_MUTEX(foo) DECLARE_MUTEX(foo)
#define mutex_init(foo) init_MUTEX(foo)
#define mutex_lock(foo) down(foo)
#define mutex_lock_interruptible(foo) down_interruptible(foo)
/* this function follows the spin_trylock() convention, so *
* it is negated to the down_trylock() return values! Be careful */
#define mutex_trylock(foo) !down_trylock(foo)
#define mutex_unlock(foo) up(foo)
#endif /* __LINUX_MUTEX_H */
|
