From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755163AbaI3Ae5 (ORCPT ); Mon, 29 Sep 2014 20:34:57 -0400 Received: from smtp.gentoo.org ([140.211.166.183]:39184 "EHLO smtp.gentoo.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755083AbaI3Aey (ORCPT ); Mon, 29 Sep 2014 20:34:54 -0400 From: Richard Yao To: viro@zeniv.linux.org.uk Cc: kernel@gentoo.org, mthode@mthode.org, michael@fds-team.de, drobbins@funtoo.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Richard Yao Subject: [PATCH v4 0/1] vfs: Respect MS_RDONLY at bind mount creation Date: Mon, 29 Sep 2014 20:34:40 -0400 Message-Id: <1412037281-25960-1-git-send-email-ryao@gentoo.org> X-Mailer: git-send-email 1.8.5.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This revision implements a suggestion from Mateusz Guzik to do `mnt->mnt.mnt_flags |= MNT_READONLY`. As he pointed out, there are no writers against which to synchronize, so we can adjust the flag directly. This becomes obvious when we see that set_mnt_shared() sets the MNT_SHARED flag directly. Richard Yao (1): vfs: Respect MS_RDONLY at bind mount creation fs/namespace.c | 20 ++++++++++++++++---- fs/pnode.h | 17 +++++++++-------- 2 files changed, 25 insertions(+), 12 deletions(-) -- 1.8.5.5