From mboxrd@z Thu Jan  1 00:00:00 1970
From: viro@parcelfarce.linux.theplanet.co.uk
Subject: Re: The argument for fs assistance in handling archives (was: silent semantic changes with reiser4)
Date: Thu, 2 Sep 2004 23:17:22 +0100
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To: Frank van Maarseveen <frankvm@xs4all.nl>
Cc: Dave Kleikamp <shaggy@austin.ibm.com>, Alan Cox <alan@lxorguk.ukuu.org.uk>, Linus Torvalds <torvalds@osdl.org>, Jamie Lokier <jamie@shareable.org>, Horst von Brand <vonbrand@inf.utfsm.cl>, Adrian Bunk <bunk@fs.tum.de>, Hans Reiser <reiser@namesys.com>, Christoph Hellwig <hch@lst.de>, fsdevel <linux-fsdevel@vger.kernel.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Alexander Lyamin aka FLX <flx@namesys.com>, ReiserFS List <reiserfs-list@namesys.com>

On Fri, Sep 03, 2004 at 12:11:33AM +0200, Frank van Maarseveen wrote:
> On Thu, Sep 02, 2004 at 11:06:40PM +0100, viro@parcelfarce.linux.theplanet.co.uk wrote:
> > On Fri, Sep 03, 2004 at 12:02:42AM +0200, Frank van Maarseveen wrote:
> > > > a) kernel has *NO* *FUCKING* *KNOWLEDGE* of fs type contained on a device.
> > > 
> > > excuse me, but how does the kernel mount the root fs?
> > 
> > By trying all fs types it has registered in a more or less random (OK, defined
> > by order of fs type registration, which is kinda-sorta deterministic at
> > boot time) order.  With no flags, unless you pass them explicitly in kernel
> > command line.  Fs types list can also be set explicitly in the command line.
> 
> Of course I know that: the point is, the kernel _has_ knowlegde contrary
> to what you blatantly said.

What knowledge does the kernel have about fs type that could deal with the
contents of given device?  Details, please.