77 строки
1.5 KiB
C
77 строки
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __LINUX_DEBUG_LOCKING_H
|
|
#define __LINUX_DEBUG_LOCKING_H
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/atomic.h>
|
|
#include <linux/bug.h>
|
|
|
|
struct task_struct;
|
|
|
|
extern int debug_locks __read_mostly;
|
|
extern int debug_locks_silent __read_mostly;
|
|
|
|
|
|
static inline int __debug_locks_off(void)
|
|
{
|
|
return xchg(&debug_locks, 0);
|
|
}
|
|
|
|
/*
|
|
* Generic 'turn off all lock debugging' function:
|
|
*/
|
|
extern int debug_locks_off(void);
|
|
|
|
#define DEBUG_LOCKS_WARN_ON(c) \
|
|
({ \
|
|
int __ret = 0; \
|
|
\
|
|
if (!oops_in_progress && unlikely(c)) { \
|
|
if (debug_locks_off() && !debug_locks_silent) \
|
|
WARN(1, "DEBUG_LOCKS_WARN_ON(%s)", #c); \
|
|
__ret = 1; \
|
|
} \
|
|
__ret; \
|
|
})
|
|
|
|
#ifdef CONFIG_SMP
|
|
# define SMP_DEBUG_LOCKS_WARN_ON(c) DEBUG_LOCKS_WARN_ON(c)
|
|
#else
|
|
# define SMP_DEBUG_LOCKS_WARN_ON(c) do { } while (0)
|
|
#endif
|
|
|
|
#ifdef CONFIG_DEBUG_LOCKING_API_SELFTESTS
|
|
extern void locking_selftest(void);
|
|
#else
|
|
# define locking_selftest() do { } while (0)
|
|
#endif
|
|
|
|
struct task_struct;
|
|
|
|
#ifdef CONFIG_LOCKDEP
|
|
extern void debug_show_all_locks(void);
|
|
extern void debug_show_held_locks(struct task_struct *task);
|
|
extern void debug_check_no_locks_freed(const void *from, unsigned long len);
|
|
extern void debug_check_no_locks_held(void);
|
|
#else
|
|
static inline void debug_show_all_locks(void)
|
|
{
|
|
}
|
|
|
|
static inline void debug_show_held_locks(struct task_struct *task)
|
|
{
|
|
}
|
|
|
|
static inline void
|
|
debug_check_no_locks_freed(const void *from, unsigned long len)
|
|
{
|
|
}
|
|
|
|
static inline void
|
|
debug_check_no_locks_held(void)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
#endif
|