Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1#ifndef __LINUX_DEBUG_LOCKING_H
2#define __LINUX_DEBUG_LOCKING_H
3
4#include <linux/kernel.h>
5
6struct task_struct;
7
8extern int debug_locks;
9extern int debug_locks_silent;
10
11/*
12 * Generic 'turn off all lock debugging' function:
13 */
14extern int debug_locks_off(void);
15
16#define DEBUG_LOCKS_WARN_ON(c) \
17({ \
18 int __ret = 0; \
19 \
20 if (unlikely(c)) { \
21 if (debug_locks_off() && !debug_locks_silent) \
22 WARN_ON(1); \
23 __ret = 1; \
24 } \
25 __ret; \
26})
27
28#ifdef CONFIG_SMP
29# define SMP_DEBUG_LOCKS_WARN_ON(c) DEBUG_LOCKS_WARN_ON(c)
30#else
31# define SMP_DEBUG_LOCKS_WARN_ON(c) do { } while (0)
32#endif
33
34#ifdef CONFIG_DEBUG_LOCKING_API_SELFTESTS
35 extern void locking_selftest(void);
36#else
37# define locking_selftest() do { } while (0)
38#endif
39
40struct task_struct;
41
42#ifdef CONFIG_LOCKDEP
43extern void debug_show_all_locks(void);
44extern void __debug_show_held_locks(struct task_struct *task);
45extern void debug_show_held_locks(struct task_struct *task);
46extern void debug_check_no_locks_freed(const void *from, unsigned long len);
47extern void debug_check_no_locks_held(struct task_struct *task);
48#else
49static inline void debug_show_all_locks(void)
50{
51}
52
53static inline void __debug_show_held_locks(struct task_struct *task)
54{
55}
56
57static inline void debug_show_held_locks(struct task_struct *task)
58{
59}
60
61static inline void
62debug_check_no_locks_freed(const void *from, unsigned long len)
63{
64}
65
66static inline void
67debug_check_no_locks_held(struct task_struct *task)
68{
69}
70#endif
71
72#endif