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Message-ID: <2c0942db0607091008x420d9b4end7a014617217e146@mail.gmail.com>
Date: Sun, 9 Jul 2006 10:08:12 -0700
From: "Ray Lee" <madrabbit@gmail.com>
Reply-To: ray-gmail@madrabbit.org
To: "Albert Cahalan" <acahalan@gmail.com>
Subject: Re: Opinions on removing /proc/tty?
Cc: "Jon Smirl" <jonsmirl@gmail.com>, "Greg KH" <greg@kroah.com>,
       rmk+lkml@arm.linux.org.uk, alan@lxorguk.ukuu.org.uk, efault@gmx.de,
       linux-kernel@vger.kernel.org
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On 7/9/06, Ray Lee <madrabbit@gmail.com> wrote:
> A simple solution would be for udev to just maintain a list in a flat
> file (e.g., /dev/.mappings) that could be read (very quickly) by ps
> upon startup.

And this could/should probably be an append-only file cleared out at
boot, so that the overhead of continually re-reading/re-writing the
file per device node on boot is removed. That'd slow things down for
sure.

Any reader just needs to know to read the whole file in, and either
construct a final lookup table in memory or scan backwards.

~r.