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Date: Fri, 4 Jan 2002 22:40:07 +0100
From: Andreas Bombe <bombe@informatik.tu-muenchen.de>
To: Keith Owens <kaos@ocs.com.au>
Cc: linux-kernel@vger.kernel.org
Subject: Re: State of the new config & build system
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On Fri, Jan 04, 2002 at 01:31:08PM +1100, Keith Owens wrote:
> On Fri, 4 Jan 2002 02:49:38 +0100, 
> Andreas Bombe <bombe@informatik.tu-muenchen.de> wrote:
> >Unionfs as I understand it would be great for editing/patching and
> >building.  Build a kernel in the pristine sources, mount a COW layer
> >over it where you patch/edit, build there.  In the ideal case the COW
> >layer would only build the changed file(s) and link vmlinux with all the
> >other objects from the pristine build.  This wouldn't affect the
> >pristine build itself at all, no make problems there when you remove the
> >COW build&change layer.
> 
> You are talking about removing an entire layer, I am talking about
> removing individual files when you decide the edit failed.  Removing
> the entire layer works, as long as all changes are always made to the
> top layer.  Removing individual files gets into timestamp problems.

Duh, you are right.  That can't be solved cleanly.

-- 
Andreas Bombe <bombe@informatik.tu-muenchen.de>    DSA key 0x04880A44
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