diff options
Diffstat (limited to 'lib/spinlock_debug.c')
-rw-r--r-- | lib/spinlock_debug.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/lib/spinlock_debug.c b/lib/spinlock_debug.c index 3de2ccf48ac6..3d9c4dc965ed 100644 --- a/lib/spinlock_debug.c +++ b/lib/spinlock_debug.c | |||
@@ -12,6 +12,42 @@ | |||
12 | #include <linux/delay.h> | 12 | #include <linux/delay.h> |
13 | #include <linux/module.h> | 13 | #include <linux/module.h> |
14 | 14 | ||
15 | void __spin_lock_init(spinlock_t *lock, const char *name, | ||
16 | struct lock_class_key *key) | ||
17 | { | ||
18 | #ifdef CONFIG_DEBUG_LOCK_ALLOC | ||
19 | /* | ||
20 | * Make sure we are not reinitializing a held lock: | ||
21 | */ | ||
22 | debug_check_no_locks_freed((void *)lock, sizeof(*lock)); | ||
23 | lockdep_init_map(&lock->dep_map, name, key); | ||
24 | #endif | ||
25 | lock->raw_lock = (raw_spinlock_t)__RAW_SPIN_LOCK_UNLOCKED; | ||
26 | lock->magic = SPINLOCK_MAGIC; | ||
27 | lock->owner = SPINLOCK_OWNER_INIT; | ||
28 | lock->owner_cpu = -1; | ||
29 | } | ||
30 | |||
31 | EXPORT_SYMBOL(__spin_lock_init); | ||
32 | |||
33 | void __rwlock_init(rwlock_t *lock, const char *name, | ||
34 | struct lock_class_key *key) | ||
35 | { | ||
36 | #ifdef CONFIG_DEBUG_LOCK_ALLOC | ||
37 | /* | ||
38 | * Make sure we are not reinitializing a held lock: | ||
39 | */ | ||
40 | debug_check_no_locks_freed((void *)lock, sizeof(*lock)); | ||
41 | lockdep_init_map(&lock->dep_map, name, key); | ||
42 | #endif | ||
43 | lock->raw_lock = (raw_rwlock_t) __RAW_RW_LOCK_UNLOCKED; | ||
44 | lock->magic = RWLOCK_MAGIC; | ||
45 | lock->owner = SPINLOCK_OWNER_INIT; | ||
46 | lock->owner_cpu = -1; | ||
47 | } | ||
48 | |||
49 | EXPORT_SYMBOL(__rwlock_init); | ||
50 | |||
15 | static void spin_bug(spinlock_t *lock, const char *msg) | 51 | static void spin_bug(spinlock_t *lock, const char *msg) |
16 | { | 52 | { |
17 | struct task_struct *owner = NULL; | 53 | struct task_struct *owner = NULL; |