|  | /* 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 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); |