C++ debug_check_no_locks_freed函数代码示例

int pthread_rwlock_destroy(pthread_rwlock_t *rwlock)
{
	try_init_preload();

	debug_check_no_locks_freed(rwlock, rwlock + sizeof(*rwlock));
	__del_lock(__get_lock(rwlock));
	return ll_pthread_rwlock_destroy(rwlock);
}

void debug_rt_mutex_init(struct rt_mutex *lock, const char *name)
{
	/*
	 * Make sure we are not reinitializing a held lock:
	 */
	debug_check_no_locks_freed((void *)lock, sizeof(*lock));
	lock->name = name;
}

int __init_srcu_struct(struct srcu_struct *sp, const char *name,
		       struct lock_class_key *key)
{
	/* Don't re-initialize a lock while it is held. */
	debug_check_no_locks_freed((void *)sp, sizeof(*sp));
	lockdep_init_map(&sp->dep_map, name, key, 0);
	return init_srcu_struct_fields(sp);
}

int __init_srcu_struct(struct srcu_struct *sp, const char *name,
		       struct lock_class_key *key)
{
#ifdef CONFIG_DEBUG_LOCK_ALLOC
	/* Don't re-initialize a lock while it is held. */
	debug_check_no_locks_freed((void *)sp, sizeof(*sp));
	lockdep_init_map(&sp->dep_map, name, key, 0);
#endif /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */
	return init_srcu_struct_fields(sp);
}

/*
 * struct mutex functions
 */
void __mutex_init(struct mutex *lock, char *name, struct lock_class_key *key)
{
#ifdef CONFIG_DEBUG_LOCK_ALLOC
	/*
	 * Make sure we are not reinitializing a held lock:
	 */
	debug_check_no_locks_freed((void *)lock, sizeof(*lock));
	lockdep_init_map(&lock->dep_map, name, key, 0);
#endif
	__rt_mutex_init(&lock->lock, name);
}

void __rt_rwlock_init(rwlock_t *rwlock, char *name, struct lock_class_key *key)
{
#ifdef CONFIG_DEBUG_LOCK_ALLOC
	/*
	 * Make sure we are not reinitializing a held lock:
	 */
	debug_check_no_locks_freed((void *)rwlock, sizeof(*rwlock));
	lockdep_init_map(&rwlock->dep_map, name, key);
#endif
	__rt_mutex_init(&rwlock->lock, name);
	rwlock->read_depth = 0;
}

int pthread_mutex_destroy(pthread_mutex_t *mutex)
{
	try_init_preload();

	/*
	 * Let's see if we're releasing a lock that's held.
	 *
	 * TODO: Hook into free() and add that check there as well.
	 */
	debug_check_no_locks_freed(mutex, mutex + sizeof(*mutex));
	__del_lock(__get_lock(mutex));
	return ll_pthread_mutex_destroy(mutex);
}

void debug_mutex_init(struct mutex *lock, const char *name,
		      struct lock_class_key *key)
{
#ifdef CONFIG_DEBUG_LOCK_ALLOC
	/*
	 * Make sure we are not reinitializing a held lock:
	 */
	debug_check_no_locks_freed((void *)lock, sizeof(*lock));
	lockdep_init_map(&lock->dep_map, name, key);
#endif
	lock->owner = NULL;
	lock->magic = lock;
}

/*
 * Initialize an rwsem:
 */
void __init_rwsem(struct rw_semaphore *sem, const char *name,
		  struct lock_class_key *key)
{
#ifdef CONFIG_DEBUG_LOCK_ALLOC
	/*
	 * Make sure we are not reinitializing a held semaphore:
	 */
	debug_check_no_locks_freed((void *)sem, sizeof(*sem));
	lockdep_init_map(&sem->dep_map, name, key, 0);
#endif
	sem->count = RWSEM_UNLOCKED_VALUE;
	raw_spin_lock_init(&sem->wait_lock);
	INIT_LIST_HEAD(&sem->wait_list);
}

void __rwlock_init(rwlock_t *lock, const char *name,
		   struct lock_class_key *key)
{
#ifdef CONFIG_DEBUG_LOCK_ALLOC
	/*
	 * Make sure we are not reinitializing a held lock:
	 */
	debug_check_no_locks_freed((void *)lock, sizeof(*lock));
	lockdep_init_map(&lock->dep_map, name, key, 0);
#endif
	lock->raw_lock = (arch_rwlock_t) __ARCH_RW_LOCK_UNLOCKED;
	lock->magic = RWLOCK_MAGIC;
	lock->owner = SPINLOCK_OWNER_INIT;
	lock->owner_cpu = -1;
}

/*
 * initialise the semaphore
 */
void __init_rwsem(struct rw_semaphore *sem, const char *name,
		  struct lock_class_key *key)
{
#ifdef CONFIG_DEBUG_LOCK_ALLOC
	/*
	 * Make sure we are not reinitializing a held semaphore:
	 */
	debug_check_no_locks_freed((void *)sem, sizeof(*sem));
	lockdep_init_map(&sem->dep_map, name, key, 0);
#endif
	sem->activity = 0;
#ifdef CONFIG_BRCM_DEBUG_RWSEM
	sem->wr_owner = NULL;
#endif
	spin_lock_init(&sem->wait_lock);
	INIT_LIST_HEAD(&sem->wait_list);
}

/*
 * Initialize an sk_lock.
 *
 * (We also register the sk_lock with the lock validator.)
 */
static void inline sock_lock_init(struct sock *sk)
{
	spin_lock_init(&sk->sk_lock.slock);
	sk->sk_lock.owner = NULL;
	init_waitqueue_head(&sk->sk_lock.wq);
	/*
	 * Make sure we are not reinitializing a held lock:
	 */
	debug_check_no_locks_freed((void *)&sk->sk_lock, sizeof(sk->sk_lock));

	/*
	 * Mark both the sk_lock and the sk_lock.slock as a
	 * per-address-family lock class:
	 */
	lockdep_set_class_and_name(&sk->sk_lock.slock,
				   af_family_slock_keys + sk->sk_family,
				   af_family_slock_key_strings[sk->sk_family]);
	lockdep_init_map(&sk->sk_lock.dep_map,
			 af_family_key_strings[sk->sk_family],
			 af_family_keys + sk->sk_family, 0);
}