rmap: simplify try_to_unmap_file()

Just simplify the code when `mlocked' is true.

Signed-off-by: Huang Shijie <shijie8@gmail.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/rmap.c

diff --git a/mm/rmap.c b/mm/rmap.c
index 265d5299..e032d96 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1103,13 +1103,10 @@
 		if (ret == SWAP_MLOCK) {
 			mlocked = try_to_mlock_page(page, vma);
 			if (mlocked)
-				break;  /* stop if actually mlocked page */
+				goto out;  /* stop if actually mlocked page */
 		}
 	}
 
-	if (mlocked)
-		goto out;
-
 	if (list_empty(&mapping->i_mmap_nonlinear))
 		goto out;