linux-kernel - Re: [RFC 0/7] [RFC] cramfs: fake write support

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Message-Id: <200805312240.50720.arnd@arndb.de>
Date:	Sat, 31 May 2008 22:40:50 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	David Newall <davidn@...idnewall.com>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	hch@....de
Subject: Re: [RFC 0/7] [RFC] cramfs: fake write support

On Saturday 31 May 2008, David Newall wrote:
> I don't agree that it is nicer to do this in cramfs.  I prefer the
> technique of union of a tmpfs over some other fs because a single
> solution that works with all filesystems is better than re-implementing
> the same idea in multiple filesystems.  Multiple implementations is a
> recipe for bugs and feature mismatch.

You're right in principle, but unfortunately there is to date no working
implementation of union mounts. Giving users the option of using an
existing file system with a few tweaks can only be better than than
forcing them to use hacks like unionfs.

	Arnd <><
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