linux/include/linux/debug_locks.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_DEBUG_LOCKING_H
#define __LINUX_DEBUG_LOCKING_H

#include <linux/atomic.h>
#include <linux/cache.h>

struct task_struct;

extern int debug_locks __read_mostly;
extern int debug_locks_silent __read_mostly;


static __always_inline int __debug_locks_off(void)
{ … }

/*
 * Generic 'turn off all lock debugging' function:
 */
extern int debug_locks_off(void);

#define DEBUG_LOCKS_WARN_ON(c) …

#ifdef CONFIG_SMP
#define SMP_DEBUG_LOCKS_WARN_ON(c) …
#else
#define SMP_DEBUG_LOCKS_WARN_ON …
#endif

#ifdef CONFIG_DEBUG_LOCKING_API_SELFTESTS
  extern void locking_selftest(void);
#else
#define locking_selftest …
#endif

#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