diff --git a/mm/shmem.c b/mm/shmem.c
index 7ec78e2..d94d2e9 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1068,8 +1068,7 @@
 		swap_duplicate(swap);
 		BUG_ON(page_mapped(page));
 		page_cache_release(page);	/* pagecache ref */
-		set_page_dirty(page);
-		unlock_page(page);
+		swap_writepage(page, wbc);
 		if (inode) {
 			mutex_lock(&shmem_swaplist_mutex);
 			/* move instead of add in case we're racing */