/* helper function to end page writeback if all the extents in the tree for that page are done with writeback  */
static int check_page_writeback(struct extent_io_tree *tree, struct page *page)
/* helper function to end page writeback if all the extents in the tree for that page are done with writeback  */
static int check_page_writeback(struct extent_io_tree *tree, struct page *page)
{
	end_page_writeback(page);
	return 0;
}