From: Rob Landley <rob@landley.net>
Reply-To: rob@landley.net
To: David Howells <dhowells@warthog.cambridge.redhat.com>,
       "Charles P. Wright" <cpwright@cpwright.com>
Subject: Re: [PATCH] General filesystem cache
Date: Thu, 31 Jul 2003 02:31:54 -0400
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       linux-fsdevel@vger.kernel.org
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On Sunday 20 July 2003 05:38, David Howells wrote:
> > Is this patch available from somewhere?  I looked on the MARC archives
> > but haven't been able to find the original mail which includes the patch.
>
> I don't know. The message containing the patches doesn't seem to have made
> it into either the LKML or the linux-fsdevel mailing lists.
>
> The basic code can be found in:
>
> 	http://cvs.infradead.org/cgi-bin/cvsweb.cgi/afs/
>
> In directories:
>
> 	Documentations/filesystems/
> 	include/linux/
> 	fs/cachefs/
>
> I'll see about putting the patch up for download when I get to OLS.
>
> David

Random question:

Way back when I used union mount code (under OS/2) that would mount the first 
filesystem read-only, and allow you to cache changes to it in a second 
filesystem.  (So you could do a build of slightly self-modifying code, a lot 
like the Linux build in 2.4 was, against a read-only tree.) 

Would this be a good tool for that sort of application?  (There's all sorts of 
other "trial run" type applications; running stuff against database snapshots 
and then seeing what the deltas are, etc...)

Rob

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