]> bbs.cooldavid.org Git - net-next-2.6.git/blame - include/linux/debug_locks.h
stmmac: add CSR Clock range selection
[net-next-2.6.git] / include / linux / debug_locks.h
CommitLineData
9a11b49a
IM
1#ifndef __LINUX_DEBUG_LOCKING_H
2#define __LINUX_DEBUG_LOCKING_H
3
ca31e146 4#include <linux/kernel.h>
9eeba613 5#include <asm/atomic.h>
27b19565 6#include <asm/system.h>
ca31e146 7
9b7f750d
AD
8struct task_struct;
9
9a11b49a
IM
10extern int debug_locks;
11extern int debug_locks_silent;
12
9eeba613
FW
13
14static inline int __debug_locks_off(void)
15{
16 return xchg(&debug_locks, 0);
17}
18
9a11b49a
IM
19/*
20 * Generic 'turn off all lock debugging' function:
21 */
22extern int debug_locks_off(void);
23
9a11b49a
IM
24#define DEBUG_LOCKS_WARN_ON(c) \
25({ \
26 int __ret = 0; \
27 \
53b9d87f 28 if (!oops_in_progress && unlikely(c)) { \
9127d4b1 29 if (debug_locks_off() && !debug_locks_silent) \
9a11b49a
IM
30 WARN_ON(1); \
31 __ret = 1; \
32 } \
33 __ret; \
34})
35
36#ifdef CONFIG_SMP
37# define SMP_DEBUG_LOCKS_WARN_ON(c) DEBUG_LOCKS_WARN_ON(c)
38#else
39# define SMP_DEBUG_LOCKS_WARN_ON(c) do { } while (0)
40#endif
41
42#ifdef CONFIG_DEBUG_LOCKING_API_SELFTESTS
43 extern void locking_selftest(void);
44#else
45# define locking_selftest() do { } while (0)
46#endif
47
f86e4513
KM
48struct task_struct;
49
9a11b49a
IM
50#ifdef CONFIG_LOCKDEP
51extern void debug_show_all_locks(void);
82a1fcb9 52extern void __debug_show_held_locks(struct task_struct *task);
9a11b49a
IM
53extern void debug_show_held_locks(struct task_struct *task);
54extern void debug_check_no_locks_freed(const void *from, unsigned long len);
55extern void debug_check_no_locks_held(struct task_struct *task);
56#else
57static inline void debug_show_all_locks(void)
58{
59}
60
82a1fcb9
IM
61static inline void __debug_show_held_locks(struct task_struct *task)
62{
63}
64
9a11b49a
IM
65static inline void debug_show_held_locks(struct task_struct *task)
66{
67}
68
69static inline void
70debug_check_no_locks_freed(const void *from, unsigned long len)
71{
72}
73
74static inline void
75debug_check_no_locks_held(struct task_struct *task)
76{
77}
78#endif
79
80#endif