/* * 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 prototypes, for the * !CONFIG_DEBUG_MUTEXES case. Most of them are NOPs: */ #define spin_lock_mutex(lock, flags) \ do { spin_lock(lock); (void)(flags); } while (0) #define spin_unlock_mutex(lock, flags) \ do { spin_unlock(lock); (void)(flags); } while (0) #define mutex_remove_waiter(lock, waiter, ti) \ __list_del((waiter)->list.prev, (waiter)->list.next) #ifdef CONFIG_MUTEX_SPIN_ON_OWNER static inline void mutex_set_owner(struct mutex *lock) { lock->owner = current; } static inline void mutex_clear_owner(struct mutex *lock) { lock->owner = NULL; } #else static inline void mutex_set_owner(struct mutex *lock) { } static inline void mutex_clear_owner(struct mutex *lock) { } #endif #define debug_mutex_wake_waiter(lock, waiter) do { } while (0) #define debug_mutex_free_waiter(waiter) do { } while (0) #define debug_mutex_add_waiter(lock, waiter, ti) do { } while (0) #define debug_mutex_unlock(lock) do { } while (0) #define debug_mutex_init(lock, name, key) do { } while (0) static inline void debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter) { }