locking: Convert raw_spinlock to arch_spinlock
[linux-2.6.git] / include / linux / spinlock_types.h
1 #ifndef __LINUX_SPINLOCK_TYPES_H
2 #define __LINUX_SPINLOCK_TYPES_H
3
4 /*
5  * include/linux/spinlock_types.h - generic spinlock type definitions
6  *                                  and initializers
7  *
8  * portions Copyright 2005, Red Hat, Inc., Ingo Molnar
9  * Released under the General Public License (GPL).
10  */
11
12 #if defined(CONFIG_SMP)
13 # include <asm/spinlock_types.h>
14 #else
15 # include <linux/spinlock_types_up.h>
16 #endif
17
18 #include <linux/lockdep.h>
19
20 typedef struct {
21         arch_spinlock_t raw_lock;
22 #ifdef CONFIG_GENERIC_LOCKBREAK
23         unsigned int break_lock;
24 #endif
25 #ifdef CONFIG_DEBUG_SPINLOCK
26         unsigned int magic, owner_cpu;
27         void *owner;
28 #endif
29 #ifdef CONFIG_DEBUG_LOCK_ALLOC
30         struct lockdep_map dep_map;
31 #endif
32 } spinlock_t;
33
34 #define SPINLOCK_MAGIC          0xdead4ead
35
36 #define SPINLOCK_OWNER_INIT     ((void *)-1L)
37
38 #ifdef CONFIG_DEBUG_LOCK_ALLOC
39 # define SPIN_DEP_MAP_INIT(lockname)    .dep_map = { .name = #lockname }
40 #else
41 # define SPIN_DEP_MAP_INIT(lockname)
42 #endif
43
44 #ifdef CONFIG_DEBUG_SPINLOCK
45 # define __SPIN_LOCK_UNLOCKED(lockname)                                 \
46         (spinlock_t)    {       .raw_lock = __RAW_SPIN_LOCK_UNLOCKED,   \
47                                 .magic = SPINLOCK_MAGIC,                \
48                                 .owner = SPINLOCK_OWNER_INIT,           \
49                                 .owner_cpu = -1,                        \
50                                 SPIN_DEP_MAP_INIT(lockname) }
51 #else
52 # define __SPIN_LOCK_UNLOCKED(lockname) \
53         (spinlock_t)    {       .raw_lock = __RAW_SPIN_LOCK_UNLOCKED,   \
54                                 SPIN_DEP_MAP_INIT(lockname) }
55 #endif
56
57 /*
58  * SPIN_LOCK_UNLOCKED defeats lockdep state tracking and is hence
59  * deprecated.
60  * Please use DEFINE_SPINLOCK() or __SPIN_LOCK_UNLOCKED() as
61  * appropriate.
62  */
63 #define SPIN_LOCK_UNLOCKED      __SPIN_LOCK_UNLOCKED(old_style_spin_init)
64
65 #define DEFINE_SPINLOCK(x)      spinlock_t x = __SPIN_LOCK_UNLOCKED(x)
66
67 #include <linux/rwlock_types.h>
68
69 #endif /* __LINUX_SPINLOCK_TYPES_H */