#ifndef __LINUX_MUTEX_DEBUG_H
#define __LINUX_MUTEX_DEBUG_H

#include <linux/linkage.h>
#include <linux/lockdep.h>
#include <linux/debug_locks.h>

/*
 * Mutexes - debugging helpers:
 */

#define __DEBUG_MUTEX_INITIALIZER(lockname)				\
	, .magic = &lockname						\
	, .owner_info = {						\
		.pid = NULL,						\
		.ip = 0,						\
	}								\
	, .owner_lock = __SPIN_LOCK_UNLOCKED(lockname.owner_lock)

#define mutex_init(mutex)						\
do {									\
	static struct lock_class_key __key;				\
									\
	__mutex_init((mutex), #mutex, &__key);				\
} while (0)

extern void mutex_destroy(struct mutex *lock);

extern int debug_mutex_task_blocked_by(struct task_struct *blocking_task,
				       struct callerinfo *owner_info);
extern void show_blocking_mutex_holder(struct task_struct *task);
#endif