1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Mutexes: blocking mutual exclusion locks 4 * 5 * started by Ingo Molnar: 6 * 7 * Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <[email protected]> 8 */ 9 10 #ifdef CONFIG_DEBUG_MUTEXES 11 extern void debug_mutex_lock_common(struct mutex *lock, 12 struct mutex_waiter *waiter); 13 extern void debug_mutex_wake_waiter(struct mutex *lock, 14 struct mutex_waiter *waiter); 15 extern void debug_mutex_free_waiter(struct mutex_waiter *waiter); 16 extern void debug_mutex_add_waiter(struct mutex *lock, 17 struct mutex_waiter *waiter, 18 struct task_struct *task); 19 extern void debug_mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter, 20 struct task_struct *task); 21 extern void debug_mutex_unlock(struct mutex *lock); 22 extern void debug_mutex_init(struct mutex *lock, const char *name, 23 struct lock_class_key *key); 24 #else /* CONFIG_DEBUG_MUTEXES */ 25 # define debug_mutex_lock_common(lock, waiter) do { } while (0) 26 # define debug_mutex_wake_waiter(lock, waiter) do { } while (0) 27 # define debug_mutex_free_waiter(waiter) do { } while (0) 28 # define debug_mutex_add_waiter(lock, waiter, ti) do { } while (0) 29 # define debug_mutex_remove_waiter(lock, waiter, ti) do { } while (0) 30 # define debug_mutex_unlock(lock) do { } while (0) 31 # define debug_mutex_init(lock, name, key) do { } while (0) 32 #endif /* !CONFIG_DEBUG_MUTEXES */ 33