1/* 2 * Mutexes: blocking mutual exclusion locks 3 * 4 * started by Ingo Molnar: 5 * 6 * Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com> 7 * 8 * This file contains mutex debugging related internal prototypes, for the 9 * !CONFIG_DEBUG_MUTEXES case. Most of them are NOPs: 10 */ 11 12#define spin_lock_mutex(lock, flags) \ 13 do { spin_lock(lock); (void)(flags); } while (0) 14#define spin_unlock_mutex(lock, flags) \ 15 do { spin_unlock(lock); (void)(flags); } while (0) 16#define mutex_remove_waiter(lock, waiter, ti) \ 17 __list_del((waiter)->list.prev, (waiter)->list.next) 18 19#ifdef CONFIG_MUTEX_SPIN_ON_OWNER 20static inline void mutex_set_owner(struct mutex *lock) 21{ 22 lock->owner = current; 23} 24 25static inline void mutex_clear_owner(struct mutex *lock) 26{ 27 lock->owner = NULL; 28} 29#else 30static inline void mutex_set_owner(struct mutex *lock) 31{ 32} 33 34static inline void mutex_clear_owner(struct mutex *lock) 35{ 36} 37#endif 38 39#define debug_mutex_wake_waiter(lock, waiter) do { } while (0) 40#define debug_mutex_free_waiter(waiter) do { } while (0) 41#define debug_mutex_add_waiter(lock, waiter, ti) do { } while (0) 42#define debug_mutex_unlock(lock) do { } while (0) 43#define debug_mutex_init(lock, name, key) do { } while (0) 44 45static inline void 46debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter) 47{ 48} 49