linux-kernel - Re: [patch 06/14] hfsplus: remove hfsplus

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Message-Id: <E1JzZF5-0002Hz-5e@pomaz-ex.szeredi.hu>
Date:	Fri, 23 May 2008 17:31:39 +0200
From:	Miklos Szeredi <miklos@...redi.hu>
To:	zippel@...ux-m68k.org
CC:	hch@...radead.org, miklos@...redi.hu,
	linux-fsdevel@...r.kernel.org, viro@...IV.linux.org.uk,
	linux-kernel@...r.kernel.org
Subject: Re: [patch 06/14] hfsplus: remove hfsplus_permission()

> > Yes.  Roman, if you care about details about the files as directories
> > look in the reiser4 threads as it did something quite similar.
> 
> I was afraid this would come up. :)
> I only need something much simpler, I don't need to create/move/unlink 
> anything, I only need a lookup+open.

Doesn't matter.  As long as filesystem has hard links and allows
lookup on these, userspace can screw up the kernel.  Badly.

I did some work on this with auto-mounting/umounting directories on
regular files.  Hope to dig it up sometimes, but there are lots of
nasty little details to worry about...

Miklos
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