diff --git a/fs/namespace.c b/fs/namespace.c
index 63ced21..7937d30 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -690,7 +690,9 @@
 
 	retval = do_umount(nd.mnt, flags);
 dput_and_out:
-	path_release_on_umount(&nd);
+	/* we mustn't call path_put() as that would clear mnt_expiry_mark */
+	dput(nd.dentry);
+	mntput_no_expire(nd.mnt);
 out:
 	return retval;
 }