1 files changed, 3 insertions, 31 deletions

diff --git a/mm/migrate.c b/mm/migrate.c
index 2a80136b23bb..da73742e52a5 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -37,36 +37,6 @@
 #define lru_to_page(_head) (list_entry((_head)->prev, struct page, lru))
 
 /*
- * Isolate one page from the LRU lists. If successful put it onto
- * the indicated list with elevated page count.
- *
- * Result:
- *  -EBUSY: page not on LRU list
- *  0: page removed from LRU list and added to the specified list.
- */
-int isolate_lru_page(struct page *page, struct list_head *pagelist)
-{
-        int ret = -EBUSY;
-
-        if (PageLRU(page)) {
-                struct zone *zone = page_zone(page);
-
-                spin_lock_irq(&zone->lru_lock);
-                if (PageLRU(page) && get_page_unless_zero(page)) {
-                        ret = 0;
-                        ClearPageLRU(page);
-                        if (PageActive(page))
-                                del_page_from_active_list(zone, page);
-                        else
-                                del_page_from_inactive_list(zone, page);
-                        list_add_tail(&page->lru, pagelist);
-                }
-                spin_unlock_irq(&zone->lru_lock);
-        }
-        return ret;
-}
-
-/*
  * migrate_prep() needs to be called before we start compiling a list of pages
  * to be migrated using isolate_lru_page().
  */
@@ -914,7 +884,9 @@ static int do_move_pages(struct mm_struct *mm, struct page_to_node *pm,
                                 !migrate_all)
                         goto put_and_set;
 
-                err = isolate_lru_page(page, &pagelist);
+                err = isolate_lru_page(page);
+                if (!err)
+                        list_add_tail(&page->lru, &pagelist);
 put_and_set:
                 /*
                  * Either remove the duplicate refcount from