rem: return B_OK;
add: if (status == B_OK) {  release_advisory_lock(vnode, NULL); } return status;
context: file_close(struct file_descriptor *descriptor){	struct vnode *vnode = descriptor->u.vnode;	FUNCTION(("file_close(descriptor = %p)\n", descriptor));	cache_node_closed(vnode, FDTYPE_FILE, vnode->cache, vnode->device, vnode->id);	if (FS_CALL(vnode, close))		return FS_CALL(vnode, close)(vnode->mount->cookie, vnode->private_node, descriptor->cookie);	return B_OK;}