thp, mm: avoid PageUnevictable on active/inactive lru lists

[linux-imx.git] / mm / swap.c

diff --git a/mm/swap.c b/mm/swap.c
index d3982c0626299b5c46d6eba2a6997838f4f87e92..62b78a6e224f2f10682e9fa11f28b8d01da1c324 100644 (file)
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -770,8 +770,6 @@ EXPORT_SYMBOL(__pagevec_release);
 void lru_add_page_tail(struct page *page, struct page *page_tail,
                       struct lruvec *lruvec, struct list_head *list)
 {
-       int uninitialized_var(active);
-       enum lru_list lru;
        const int file = 0;
 
        VM_BUG_ON(!PageHead(page));
@@ -783,20 +781,6 @@ void lru_add_page_tail(struct page *page, struct page *page_tail,
        if (!list)
                SetPageLRU(page_tail);
 
-       if (page_evictable(page_tail)) {
-               if (PageActive(page)) {
-                       SetPageActive(page_tail);
-                       active = 1;
-                       lru = LRU_ACTIVE_ANON;
-               } else {
-                       active = 0;
-                       lru = LRU_INACTIVE_ANON;
-               }
-       } else {
-               SetPageUnevictable(page_tail);
-               lru = LRU_UNEVICTABLE;
-       }
-
        if (likely(PageLRU(page)))
                list_add_tail(&page_tail->lru, &page->lru);
        else if (list) {
@@ -812,13 +796,13 @@ void lru_add_page_tail(struct page *page, struct page *page_tail,
                 * Use the standard add function to put page_tail on the list,
                 * but then correct its position so they all end up in order.
                 */
-               add_page_to_lru_list(page_tail, lruvec, lru);
+               add_page_to_lru_list(page_tail, lruvec, page_lru(page_tail));
                list_head = page_tail->lru.prev;
                list_move_tail(&page_tail->lru, list_head);
        }
 
        if (!PageUnevictable(page))
-               update_page_reclaim_stat(lruvec, file, active);
+               update_page_reclaim_stat(lruvec, file, PageActive(page_tail));
 }
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */