1 files changed, 14 insertions, 1 deletions

diff --git a/mm/migrate.c b/mm/migrate.c
index 7a66ca25dc8a..a91ca00abebe 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -297,7 +297,7 @@ static int migrate_page_move_mapping(struct address_space *mapping,
         void **pslot;
 
         if (!mapping) {
-                /* Anonymous page */
+                /* Anonymous page without mapping */
                 if (page_count(page) != 1)
                         return -EAGAIN;
                 return 0;
@@ -333,6 +333,19 @@ static int migrate_page_move_mapping(struct address_space *mapping,
          */
         __put_page(page);
 
+        /*
+         * If moved to a different zone then also account
+         * the page for that zone. Other VM counters will be
+         * taken care of when we establish references to the
+         * new page and drop references to the old page.
+         *
+         * Note that anonymous pages are accounted for
+         * via NR_FILE_PAGES and NR_ANON_PAGES if they
+         * are mapped to swap space.
+         */
+        __dec_zone_page_state(page, NR_FILE_PAGES);
+        __inc_zone_page_state(newpage, NR_FILE_PAGES);
+
         write_unlock_irq(&mapping->tree_lock);
 
         return 0;