/* For address_spaces which do not use buffers nor write back.  */
int __set_page_dirty_no_writeback(struct page *page)
/* For address_spaces which do not use buffers nor write back.  */
int __set_page_dirty_no_writeback(struct page *page)
{
	if (!PageDirty(page))
		SetPageDirty(page);
	return 0;
}