1 #ifndef _LIBLOCKDEP_COMMON_H
2 #define _LIBLOCKDEP_COMMON_H
6 #define NR_LOCKDEP_CACHING_CLASSES 2
7 #define MAX_LOCKDEP_SUBCLASSES 8UL
10 #define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0))
14 #define _RET_IP_ CALLER_ADDR0
18 #define _THIS_IP_ ({ __label__ __here; __here: (unsigned long)&&__here; })
21 struct lockdep_subclass_key {
25 struct lock_class_key {
26 struct lockdep_subclass_key subkeys[MAX_LOCKDEP_SUBCLASSES];
30 struct lock_class_key *key;
31 struct lock_class *class_cache[NR_LOCKDEP_CACHING_CLASSES];
33 #ifdef CONFIG_LOCK_STAT
39 void lockdep_init_map(struct lockdep_map *lock, const char *name,
40 struct lock_class_key *key, int subclass);
41 void lock_acquire(struct lockdep_map *lock, unsigned int subclass,
42 int trylock, int read, int check,
43 struct lockdep_map *nest_lock, unsigned long ip);
44 void lock_release(struct lockdep_map *lock, int nested,
46 extern void debug_check_no_locks_freed(const void *from, unsigned long len);
47 extern void lockdep_init(void);
49 #define STATIC_LOCKDEP_MAP_INIT(_name, _key) \
50 { .name = (_name), .key = (void *)(_key), }