1#ifndef __LINUX_DEBUG_LOCKING_H
 2#define __LINUX_DEBUG_LOCKING_H
 3
 4#include <linux/kernel.h>
 5#include <linux/atomic.h>
 6#include <linux/bug.h>
 7
 8struct task_struct;
 9
10extern int debug_locks;
11extern int debug_locks_silent;
12
13
14static inline int __debug_locks_off(void)
15{
16	return xchg(&debug_locks, 0);
17}
18
19/*
20 * Generic 'turn off all lock debugging' function:
21 */
22extern int debug_locks_off(void);
23
24#define DEBUG_LOCKS_WARN_ON(c)						\
25({									\
26	int __ret = 0;							\
27									\
28	if (!oops_in_progress && unlikely(c)) {				\
29		if (debug_locks_off() && !debug_locks_silent)		\
30			WARN(1, "DEBUG_LOCKS_WARN_ON(%s)", #c);		\
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
48struct task_struct;
49
50#ifdef CONFIG_LOCKDEP
51extern void debug_show_all_locks(void);
52extern void debug_show_held_locks(struct task_struct *task);
53extern void debug_check_no_locks_freed(const void *from, unsigned long len);
54extern void debug_check_no_locks_held(void);
55#else
56static inline void debug_show_all_locks(void)
57{
58}
59
60static inline void debug_show_held_locks(struct task_struct *task)
61{
62}
63
64static inline void
65debug_check_no_locks_freed(const void *from, unsigned long len)
66{
67}
68
69static inline void
70debug_check_no_locks_held(void)
71{
72}
73#endif
74
75#endif

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __LINUX_DEBUG_LOCKING_H
 3#define __LINUX_DEBUG_LOCKING_H
 4
 5#include <linux/kernel.h>
 6#include <linux/atomic.h>
 7#include <linux/bug.h>
 8
 9struct task_struct;
10
11extern int debug_locks;
12extern int debug_locks_silent;
13
14
15static inline int __debug_locks_off(void)
16{
17	return xchg(&debug_locks, 0);
18}
19
20/*
21 * Generic 'turn off all lock debugging' function:
22 */
23extern int debug_locks_off(void);
24
25#define DEBUG_LOCKS_WARN_ON(c)						\
26({									\
27	int __ret = 0;							\
28									\
29	if (!oops_in_progress && unlikely(c)) {				\
30		if (debug_locks_off() && !debug_locks_silent)		\
31			WARN(1, "DEBUG_LOCKS_WARN_ON(%s)", #c);		\
32		__ret = 1;						\
33	}								\
34	__ret;								\
35})
36
37#ifdef CONFIG_SMP
38# define SMP_DEBUG_LOCKS_WARN_ON(c)			DEBUG_LOCKS_WARN_ON(c)
39#else
40# define SMP_DEBUG_LOCKS_WARN_ON(c)			do { } while (0)
41#endif
42
43#ifdef CONFIG_DEBUG_LOCKING_API_SELFTESTS
44  extern void locking_selftest(void);
45#else
46# define locking_selftest()	do { } while (0)
47#endif
48
49struct task_struct;
50
51#ifdef CONFIG_LOCKDEP
52extern void debug_show_all_locks(void);
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(void);
56#else
57static inline void debug_show_all_locks(void)
58{
59}
60
61static inline void debug_show_held_locks(struct task_struct *task)
62{
63}
64
65static inline void
66debug_check_no_locks_freed(const void *from, unsigned long len)
67{
68}
69
70static inline void
71debug_check_no_locks_held(void)
72{
73}
74#endif
75
76#endif