On Sat, Aug 12, 2023 at 09:58:35AM +0800, Peng Zhang wrote:
> From: ZhangPeng <zhangpeng362@xxxxxxxxxx>
>
> Saves three implicit call to compound_head().
I count four!
> if (err) {
> - put_page(page);
> + folio_put(folio);
> ret = vmf_error(err);
One.
>
> - __SetPageUptodate(page);
> - err = add_to_page_cache_lru(page, mapping, offset, gfp);
> + __folio_mark_uptodate(folio);
> + err = filemap_add_folio(mapping, folio, offset, gfp);
Two, three.
> if (unlikely(err)) {
> - put_page(page);
> + folio_put(folio);
Four!
Reviewed-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
