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Date: Mon, 21 Nov 2011 16:34:07 -0800
From: Andrew Morton <akpm@linux-foundation.org>
To: Vasiliy Kulikov <segooon@gmail.com>
Cc: kernel-hardening@lists.openwall.com, linux-kernel@vger.kernel.org,
        Alexey Dobriyan <adobriyan@gmail.com>,
        Al Viro <viro@zeniv.linux.org.uk>, "H. Peter Anvin" <hpa@zytor.com>,
        Greg KH <greg@kroah.com>, Theodore Tso <tytso@MIT.EDU>,
        Alan Cox <alan@lxorguk.ukuu.org.uk>,
        Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [RFC v2 1/3] procfs: parse mount options
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In-Reply-To: <20111119110126.GA11468@albatros>
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On Sat, 19 Nov 2011 15:01:26 +0400
Vasiliy Kulikov <segooon@gmail.com> wrote:

> This patch adds support of procfs mount options.
> Actual mount options are coming in the next patches.

The patches look sane to me.

I assume that `mount -o remount' has been tested and works as expected?

I also assume that any file which was opened prior to the remount will
remain accessible to any process which has the fd.  Is this acceptable
from a security/operational POV?