mm/page_alloc.c: use list_move() instead of list_del()/list_add() combination

Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik van Riel <riel@redhat.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 136a547..3a58221 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -867,9 +867,8 @@ static int move_freepages(struct zone *zone,
                }
 
                order = page_order(page);
-               list_del(&page->lru);
-               list_add(&page->lru,
-                       &zone->free_area[order].free_list[migratetype]);
+               list_move(&page->lru,
+                         &zone->free_area[order].free_list[migratetype]);
                page += 1 << order;
                pages_moved += 1 << order;
        }