From: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> Subject: mm/swap: fix for "mm: workingset: age nonresident information alongside anonymous pages" Non-file-lru page could also be activated in mark_page_accessed() and we need to count this activation for nonresident_age. Note that it's better for this patch to be squashed into the patch "mm: workingset: age nonresident information alongside anonymous pages". Link: http://lkml.kernel.org/r/1592288204-27734-3-git-send-email-iamjoonsoo.kim@xxxxxxx Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx> Cc: Joonsoo Kim <js1304@xxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxx> Cc: Minchan Kim <minchan.kim@xxxxxxxxx> Cc: Rik van Riel <riel@xxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/swap.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/mm/swap.c~mm-swap-fix-for-mm-workingset-age-nonresident-information-alongside-anonymous-pages +++ a/mm/swap.c @@ -443,8 +443,7 @@ void mark_page_accessed(struct page *pag else __lru_cache_activate_page(page); ClearPageReferenced(page); - if (page_is_file_lru(page)) - workingset_activation(page); + workingset_activation(page); } if (page_is_idle(page)) clear_page_idle(page); _