rem: bootfs_can_page(fs_volume _fs, fs_vnode _v)
add: bootfs_can_page(fs_volume _fs, fs_vnode _v, fs_cookie cookie)
context: bootfs_can_page(fs_volume _fs, fs_vnode _v){	struct bootfs_vnode *v = _v;	TRACE(("bootfs_canpage: vnode %p\n", v));	if (v->stream.type == S_IFREG)		return true;	return false;}