[PATCH v2 01/10] mm: use add_page_to_lru_list()

[Yu Zhao]

There is add_page_to_lru_list(), and move_pages_to_lru() should reuse
it, not duplicate it.

Link: https://lore.kernel.org/linux-mm/20201207220949.830352-2-yuzhao@xxxxxxxxxx/
Signed-off-by: Yu Zhao <yuzhao@xxxxxxxxxx>
Reviewed-by: Alex Shi <alex.shi@xxxxxxxxxxxxxxxxx>
---
 mm/vmscan.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 04509994aed4..19875660e8f8 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1823,7 +1823,6 @@ static unsigned noinline_for_stack move_pages_to_lru(struct lruvec *lruvec,
 	int nr_pages, nr_moved = 0;
 	LIST_HEAD(pages_to_free);
 	struct page *page;
-	enum lru_list lru;
 
 	while (!list_empty(list)) {
 		page = lru_to_page(list);
@@ -1868,11 +1867,8 @@ static unsigned noinline_for_stack move_pages_to_lru(struct lruvec *lruvec,
 		 * inhibits memcg migration).
 		 */
 		VM_BUG_ON_PAGE(!lruvec_holds_page_lru_lock(page, lruvec), page);
-		lru = page_lru(page);
+		add_page_to_lru_list(page, lruvec, page_lru(page));
 		nr_pages = thp_nr_pages(page);
-
-		update_lru_size(lruvec, lru, page_zonenum(page), nr_pages);
-		list_add(&page->lru, &lruvec->lists[lru]);
 		nr_moved += nr_pages;
 		if (PageActive(page))
 			workingset_age_nonresident(lruvec, nr_pages);
-- 
2.30.0.280.ga3ce27912f-goog