diff --git a/mm/memory.c b/mm/memory.c
index a472bcd..1002f47 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1789,7 +1789,7 @@
 	 * not dirty accountable.
 	 */
 	if (PageAnon(old_page)) {
-		if (!TestSetPageLocked(old_page)) {
+		if (trylock_page(old_page)) {
 			reuse = can_share_swap_page(old_page);
 			unlock_page(old_page);
 		}