diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 96f83a417944..8fde3b59e3a5 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -551,8 +551,9 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
 		dout("writepage %p page %p snapc %p not writeable - noop\n",
 		     inode, page, snapc);
 		/* we should only noop if called by kswapd */
-		WARN_ON((current->flags & PF_MEMALLOC) == 0);
+		WARN_ON(!(current->flags & PF_MEMALLOC));
 		ceph_put_snap_context(oldest);
+		redirty_page_for_writepage(wbc, page);
 		goto out;
 	}
 	ceph_put_snap_context(oldest);