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Date: Sun, 16 Dec 2007 21:51:48 +1030
From: David Newall <david@davidnewall.com>
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To: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
CC: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [patch 1/2] [RFC] Simple tamper-proof device filesystem.
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Tetsuo Handa wrote:
>  /dev needs to be writable, but this means that files on /dev might be
>  tampered with.

I infer that you mean /dev needs to be writable by anyone, not by just 
its owner or owner and group (conventionally root/root.)  This goes 
against conventional wisdom, which is that /dev must be writable only by 
the administrator.  Why do you say otherwise?