On Sun, Dec 06, 2020 at 06:14:41PM +0800, Muchun Song wrote: > @@ -1144,7 +1144,8 @@ void do_page_add_anon_rmap(struct page *page, > * disabled. > */ > if (compound) > - __inc_lruvec_page_state(page, NR_ANON_THPS); > + __mod_lruvec_page_state(page, NR_ANON_THPS, > + HPAGE_PMD_NR); > __mod_lruvec_page_state(page, NR_ANON_MAPPED, nr); What I mistakenly wrote about the previous patch applies to this and the following patches, though: /proc/vmstat currently prints number of anon, file and shmem THPs; you are changing it to print number of 4k pages in those THPs. That's an ABI change we cannot really do.
