net_dma: acquire/release dma channels on ifup/ifdown
[linux-2.6] / include / linux / mutex-debug.h
1 #ifndef __LINUX_MUTEX_DEBUG_H
2 #define __LINUX_MUTEX_DEBUG_H
3
4 #include <linux/linkage.h>
5 #include <linux/lockdep.h>
6
7 /*
8  * Mutexes - debugging helpers:
9  */
10
11 #define __DEBUG_MUTEX_INITIALIZER(lockname)                             \
12         , .magic = &lockname
13
14 #define mutex_init(mutex)                                               \
15 do {                                                                    \
16         static struct lock_class_key __key;                             \
17                                                                         \
18         __mutex_init((mutex), #mutex, &__key);                          \
19 } while (0)
20
21 extern void mutex_destroy(struct mutex *lock);
22
23 #endif