| Message ID | 20201217034356.4708-2-songmuchun@bytedance.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Convert all THP vmstat counters to pages | expand |
On Wed, Dec 16, 2020 at 7:45 PM Muchun Song <songmuchun@bytedance.com> wrote: > > The unit of NR_ANON_THPS is HPAGE_PMD_NR already. So it should inc/dec > by one rather than nr_pages. > > Fixes: 468c398233da ("mm: memcontrol: switch to native NR_ANON_THPS counter") > Signed-off-by: Muchun Song <songmuchun@bytedance.com> > Acked-by: Michal Hocko <mhocko@suse.com> > Acked-by: Johannes Weiner <hannes@cmpxchg.org> > Acked-by: Pankaj Gupta <pankaj.gupta@cloud.ionos.com> > Reviewed-by: Roman Gushchin <guro@fb.com> Reviewed-by: Shakeel Butt <shakeelb@google.com>
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index b80328f52fb4..8818bf64d6fe 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -5653,10 +5653,8 @@ static int mem_cgroup_move_account(struct page *page, __mod_lruvec_state(from_vec, NR_ANON_MAPPED, -nr_pages); __mod_lruvec_state(to_vec, NR_ANON_MAPPED, nr_pages); if (PageTransHuge(page)) { - __mod_lruvec_state(from_vec, NR_ANON_THPS, - -nr_pages); - __mod_lruvec_state(to_vec, NR_ANON_THPS, - nr_pages); + __dec_lruvec_state(from_vec, NR_ANON_THPS); + __inc_lruvec_state(to_vec, NR_ANON_THPS); } }
The unit of NR_ANON_THPS is HPAGE_PMD_NR already. So it should inc/dec by one rather than nr_pages. Fixes: 468c398233da ("mm: memcontrol: switch to native NR_ANON_THPS counter") Signed-off-by: Muchun Song <songmuchun@bytedance.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Pankaj Gupta <pankaj.gupta@cloud.ionos.com> Reviewed-by: Roman Gushchin <guro@fb.com> --- mm/memcontrol.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)