From: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
Subject: Re: [PATCH v2 2/9] ext2: tell DAX the size of allocation holes
Date: Sun, 11 Sep 2016 05:47:41 -0700
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Cc: Theodore Ts'o <tytso-3s7WtUTddSA@public.gmane.org>,
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To: Matthew Wilcox <mawilcox-0li6OtcxBFHby3iVrkZq2A@public.gmane.org>
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On Sat, Sep 10, 2016 at 07:52:53AM +0000, Matthew Wilcox wrote:
> DAX code over to using iomap requires converting all of ext2 away from
> buffer_head; are you saying he's wrong?

Not sure if he's really saying that, but it's wrong for sure.  Just
to prove that I came up with a working ext2 iomap DAX implementation
in a few hours today.  I'll take a stab at ext4 and the block device
as well and will post the updated series early next week - I'll need
to take care of a few high priority todo list items first.