blob: 4b33a8ad544e923d7e2ef7767f4ad3433d920825 (
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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/****************************************************************************
****************************************************************************
***
*** This header was automatically generated from a Linux kernel header
*** of the same name, to make information necessary for userspace to
*** call into the kernel available to libc. It contains only constants,
*** structures, and macros generated from the original header, and thus,
*** contains no copyrightable information.
***
****************************************************************************
****************************************************************************/
#ifndef __LINUX_MUTEX_H
#define __LINUX_MUTEX_H
#include <linux/list.h>
#include <linux/spinlock_types.h>
#include <linux/linkage.h>
#include <linux/lockdep.h>
#include <asm/atomic.h>
struct mutex {
atomic_t count;
spinlock_t wait_lock;
struct list_head wait_list;
};
struct mutex_waiter {
struct list_head list;
struct task_struct *task;
};
#define __DEBUG_MUTEX_INITIALIZER(lockname)
#define mutex_init(mutex) do { static struct lock_class_key __key; __mutex_init((mutex), #mutex, &__key); } while (0)
#define mutex_destroy(mutex) do { } while (0)
#define __DEP_MAP_MUTEX_INITIALIZER(lockname)
#define __MUTEX_INITIALIZER(lockname) { .count = ATOMIC_INIT(1) , .wait_lock = SPIN_LOCK_UNLOCKED , .wait_list = LIST_HEAD_INIT(lockname.wait_list) __DEBUG_MUTEX_INITIALIZER(lockname) __DEP_MAP_MUTEX_INITIALIZER(lockname) }
#define DEFINE_MUTEX(mutexname) struct mutex mutexname = __MUTEX_INITIALIZER(mutexname)
#define mutex_lock_nested(lock, subclass) mutex_lock(lock)
#endif
|