linux-kernel - Re: [PATCH 0/7] overlay filesystem: request for inclusion

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Message-Id: <20110608153208.dc705cda.akpm@linux-foundation.org>
Date:	Wed, 8 Jun 2011 15:32:08 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Miklos Szeredi <miklos@...redi.hu>
Cc:	viro@...IV.linux.org.uk, torvalds@...ux-foundation.org,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	apw@...onical.com, nbd@...nwrt.org, neilb@...e.de,
	hramrach@...trum.cz, jordipujolp@...il.com, ezk@....cs.sunysb.edu,
	mszeredi@...e.cz
Subject: Re: [PATCH 0/7] overlay filesystem: request for inclusion

On Wed,  1 Jun 2011 14:46:13 +0200
Miklos Szeredi <miklos@...redi.hu> wrote:

> I'd like to ask for overlayfs to be merged into 3.1.

Dumb questions:

I've never really understood the need for fs overlaying.  Who wants it?
What are the use-cases?

This sort of thing could be implemented in userspace and wired up via
fuse, I assume.  Has that been attempted and why is it inadequate?
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