1 /****************************************************************************
2  ****************************************************************************
3  ***
4  ***   This header was automatically generated from a Linux kernel header
5  ***   of the same name, to make information necessary for userspace to
6  ***   call into the kernel available to libc.  It contains only constants,
7  ***   structures, and macros generated from the original header, and thus,
8  ***   contains no copyrightable information.
9  ***
10  ****************************************************************************
11  ****************************************************************************/
12 #ifndef __LINUX_SPINLOCK_TYPES_H
13 #define __LINUX_SPINLOCK_TYPES_H
14 
15 #include <linux/lockdep.h>
16 
17 #include <linux/spinlock_types_up.h>
18 
19 typedef struct {
20  raw_spinlock_t raw_lock;
21 } spinlock_t;
22 
23 #define SPINLOCK_MAGIC 0xdead4ead
24 
25 typedef struct {
26  raw_rwlock_t raw_lock;
27 } rwlock_t;
28 
29 #define RWLOCK_MAGIC 0xdeaf1eed
30 
31 #define SPINLOCK_OWNER_INIT ((void *)-1L)
32 
33 #define SPIN_DEP_MAP_INIT(lockname)
34 
35 #define RW_DEP_MAP_INIT(lockname)
36 
37 #define __SPIN_LOCK_UNLOCKED(lockname)   (spinlock_t) { .raw_lock = __RAW_SPIN_LOCK_UNLOCKED,   SPIN_DEP_MAP_INIT(lockname) }
38 #define __RW_LOCK_UNLOCKED(lockname)   (rwlock_t) { .raw_lock = __RAW_RW_LOCK_UNLOCKED,   RW_DEP_MAP_INIT(lockname) }
39 
40 #define SPIN_LOCK_UNLOCKED __SPIN_LOCK_UNLOCKED(old_style_spin_init)
41 #define RW_LOCK_UNLOCKED __RW_LOCK_UNLOCKED(old_style_rw_init)
42 
43 #define DEFINE_SPINLOCK(x) spinlock_t x = __SPIN_LOCK_UNLOCKED(x)
44 #define DEFINE_RWLOCK(x) rwlock_t x = __RW_LOCK_UNLOCKED(x)
45 
46 #endif
47