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Date: Tue, 30 Oct 2007 13:17:29 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: David Woodhouse <dwmw2@infradead.org>
Cc: torvalds@linux-foundation.org, linux-kernel@vger.kernel.org,
       bernie@codewiz.org
Subject: Re: [PATCH] Allow auto-destruction of loop devices.
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On Tue, 30 Oct 2007 16:12:51 -0400
David Woodhouse <dwmw2@infradead.org> wrote:

> On Tue, 2007-10-30 at 13:01 -0700, Andrew Morton wrote:
> > Why do we want to do this?
> 
> In general, so that we can automatically allocate loop devices (as with
> losetup -f) and have them disappear when we're done with them.
> 
> In particular, right now, so that we can stop relying on the hackish
> special-case in umount(8) which kills off loop devices which were set up
> by 'mount -oloop'. That means we can stop putting crap in /etc/mtab
> which doesn't belong there, which means it can be a symlink
> to /proc/mounts, which means yet another writable file on the root
> filesystem is eliminated and the 'stateless' folks get happier... and
> OLPC trac #356 can be closed.
> 
> The mount(8) side of that is at
> http://marc.info/?l=util-linux-ng&m=119362955431694&w=2

ooh, I spy a changelog.  Thanks.