1163 	struct dentry *this_parent;  in d_walk()  local
1171 	this_parent = parent;  in d_walk()
1172 	spin_lock(&this_parent->d_lock);  in d_walk()
1174 	ret = enter(data, this_parent);  in d_walk()
1186 	next = this_parent->d_subdirs.next;  in d_walk()
1188 	while (next != &this_parent->d_subdirs) {  in d_walk()
1211 			spin_unlock(&this_parent->d_lock);  in d_walk()
1213 			this_parent = dentry;  in d_walk()
1214 			spin_acquire(&this_parent->d_lock.dep_map, 0, 1, _RET_IP_);  in d_walk()
1224 	if (this_parent != parent) {  in d_walk()
1225 		struct dentry *child = this_parent;  in d_walk()
1226 		this_parent = child->d_parent;  in d_walk()
1229 		spin_lock(&this_parent->d_lock);  in d_walk()
1237 			if (next == &this_parent->d_subdirs)  in d_walk()
1251 	spin_unlock(&this_parent->d_lock);  in d_walk()
1256 	spin_unlock(&this_parent->d_lock);  in d_walk()