switch touch_atime to struct path

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index ef4b780e..0816794 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -771,7 +771,7 @@
 			goto put_fail;
 
 		if (u->sk_type == type)
-			touch_atime(path.mnt, path.dentry);
+			touch_atime(&path);
 
 		path_put(&path);
 
@@ -787,7 +787,7 @@
 			struct dentry *dentry;
 			dentry = unix_sk(u)->path.dentry;
 			if (dentry)
-				touch_atime(unix_sk(u)->path.mnt, dentry);
+				touch_atime(&unix_sk(u)->path);
 		} else
 			goto fail;
 	}