| /* SPDX-License-Identifier: GPL-2.0 */ | 
 | /* | 
 |  * Mutexes: blocking mutual exclusion locks | 
 |  * | 
 |  * started by Ingo Molnar: | 
 |  * | 
 |  *  Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com> | 
 |  * | 
 |  * This file contains mutex debugging related internal declarations, | 
 |  * prototypes and inline functions, for the CONFIG_DEBUG_MUTEXES case. | 
 |  * More details are in kernel/mutex-debug.c. | 
 |  */ | 
 |  | 
 | /* | 
 |  * This must be called with lock->wait_lock held. | 
 |  */ | 
 | extern void debug_mutex_lock_common(struct mutex *lock, | 
 | 				    struct mutex_waiter *waiter); | 
 | extern void debug_mutex_wake_waiter(struct mutex *lock, | 
 | 				    struct mutex_waiter *waiter); | 
 | extern void debug_mutex_free_waiter(struct mutex_waiter *waiter); | 
 | extern void debug_mutex_add_waiter(struct mutex *lock, | 
 | 				   struct mutex_waiter *waiter, | 
 | 				   struct task_struct *task); | 
 | extern void debug_mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter, | 
 | 				struct task_struct *task); | 
 | extern void debug_mutex_unlock(struct mutex *lock); | 
 | extern void debug_mutex_init(struct mutex *lock, const char *name, | 
 | 			     struct lock_class_key *key); |