linux-kernel - Re: [patch 0/6][RFC] Cleanup FIBMAP

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Message-ID: <20071029194720.GC3042@webber.adilger.int>
Date:	Mon, 29 Oct 2007 13:47:20 -0600
From:	Andreas Dilger <adilger@....com>
To:	Mike Waychison <mikew@...gle.com>
Cc:	Chris Mason <chris.mason@...cle.com>,
	Anton Altaparmakov <aia21@....ac.uk>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	Kalpak Shah <Kalpak.Shah@....COM>
Subject: Re: [patch 0/6][RFC] Cleanup FIBMAP

On Oct 29, 2007  12:16 -0700, Mike Waychison wrote:
> Chris Mason wrote:
>> Reiserfs and Btrfs also use 0 to mean packed.  It would be nice if there
>> was a way to indicate your-data-is-here-but-isn't-alone.  But that's
>> more of a feature for the FIEMAP stuff.
>
> I hadn't heard of FIEMAP, so I went back and read the thread from 
> April/May.  It seems that this is a much better approach than introducing a 
> FIBMAP64.
>
> What ever happened with this proposal?

We made a patch for ext4 that we need to update and push upstream.  I've
just resent the spec we used in a separate email (attached to old thread)
for reference.

Cheers, Andreas
--
Andreas Dilger
Sr. Software Engineer, Lustre Group
Sun Microsystems of Canada, Inc.

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