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Date:	Mon, 15 Sep 2008 10:53:05 -0700
From:	Mark Fasheh <mfasheh@...e.com>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Theodore Tso <tytso@....EDU>, Anton Altaparmakov <aia21@....ac.uk>,
	linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org,
	akpm@...uxfoundation.org
Subject: Re: [PATCH 1/4] vfs: vfs-level fiemap interface

On Mon, Sep 15, 2008 at 10:49:48AM -0400, Christoph Hellwig wrote:
> I agree to you (or someone elses - don't remember anymore) suggestion
> to put in more padding so we can add fields later.  I strongly disagree
> putting in features now that we neither have a user, nor a usecase or
> testcase for.

So, how about another 64 bits of padding in struct fiemap_extent? That could
help cover future uses like compression, which might require another 64 bit
offset field - we only have 32 bits of reserved space there right now.
	--Mark

--
Mark Fasheh
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