mm: add per-order mTHP anon_swpout and anon_swpout_fallback counters

[linux-2.6-block.git] / mm / page_io.c

diff --git a/mm/page_io.c b/mm/page_io.c
index a9a7c236aeccfba81ce34ec7638f67d8ce1cd7c8..46c603dddf043d4b5c0380996d3a5fb842d73315 100644 (file)
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -217,6 +217,7 @@ static inline void count_swpout_vm_event(struct folio *folio)
                count_memcg_folio_events(folio, THP_SWPOUT, 1);
                count_vm_event(THP_SWPOUT);
        }
+       count_mthp_stat(folio_order(folio), MTHP_STAT_ANON_SWPOUT);
 #endif
        count_vm_events(PSWPOUT, folio_nr_pages(folio));
 }