On Fri, May 08, 2020 at 02:22:15PM -0700, Shakeel Butt wrote: > Currently update_page_reclaim_stat() updates the lruvec.reclaim_stats > just once for a page irrespective if a page is huge or not. Fix that by > passing the hpage_nr_pages(page) to it. > > Signed-off-by: Shakeel Butt <shakeelb@xxxxxxxxxx> https://lore.kernel.org/patchwork/patch/685703/ Laughs, then cries. > @@ -928,7 +928,7 @@ void lru_add_page_tail(struct page *page, struct page *page_tail, > } > > if (!PageUnevictable(page)) > - update_page_reclaim_stat(lruvec, file, PageActive(page_tail)); > + update_page_reclaim_stat(lruvec, file, PageActive(page_tail), 1); The change to __pagevec_lru_add_fn() below makes sure the tail pages are already accounted. This would make them count twice. > #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ > > @@ -973,7 +973,7 @@ static void __pagevec_lru_add_fn(struct page *page, struct lruvec *lruvec, > if (page_evictable(page)) { > lru = page_lru(page); > update_page_reclaim_stat(lruvec, page_is_file_lru(page), > - PageActive(page)); > + PageActive(page), nr_pages); > if (was_unevictable) > __count_vm_events(UNEVICTABLE_PGRESCUED, nr_pages); > } else {
