linux-kernel - Re: linux kernel without file system

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Message-Id: <200901141259.50237.arnd@arndb.de>
Date:	Wed, 14 Jan 2009 12:59:49 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Philippe De Muyter <phdm@...qel.be>
Cc:	Tomasz Chmielewski <mangoo@...g.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: linux kernel without file system

On Wednesday 14 January 2009, Philippe De Muyter wrote:
> Actually, I was thinking about reducing the footprint of my kernel by
> removing all the fs-related system calls, so the problem is not where
> the file-system is, but how to access (serial) devices without giving their
> "/dev/..." name.

One thing that you can do is remove support for block devices in somewhat
recent kernels, which gets you most of the way. File systems themselves
are required for the majority of all system calls (anything that takes
a file descriptor) and for the boot process.

	Arnd <><
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