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Date: Thu, 26 Aug 2004 12:59:14 +0200
From: Christoph Hellwig <hch@lst.de>
To: Jamie Lokier <jamie@shareable.org>
Cc: Hans Reiser <reiser@namesys.com>, Linus Torvalds <torvalds@osdl.org>,
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       Alexander Lyamin aka FLX <flx@namesys.com>,
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Subject: Re: silent semantic changes with reiser4
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On Thu, Aug 26, 2004 at 11:53:30AM +0100, Jamie Lokier wrote:
> Hans Reiser wrote:
> > being able to cat dirname/pseudos/cat and get a 
> > concatenation of all of the files is nice, and being able to cat 
> > dirname/pseudos/tar and get an archive of the directory is nice
> 
> Yes.  Being able to cd into filename.tar.gz and filename.iso is also
> nice, but all of these features should be supported by the VFS
> generically, not in any specific filesystem, and there should be a
> hook to invoke the various fun filesystem-independent handlers by name.

It doesn't belong into the kernel at all.  If at all it belongs into a
userspace filesystems, but even in that case the magic detection of
which one to use is kinda hard.  You absoutely don't want to hardcode
file formats in the kernel.