linux-kernel - Re: [PATCH] Allow auto-destruction of loop devices.

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Message-Id: <1193775171.2651.46.camel@shinybook.infradead.org>
Date:	Tue, 30 Oct 2007 16:12:51 -0400
From:	David Woodhouse <dwmw2@...radead.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
	bernie@...ewiz.org
Subject: Re: [PATCH] Allow auto-destruction of loop devices.

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

-- 
dwmw2

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