From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Lameter <clameter@sgi.com>
Subject: Re: [00/41] Large Blocksize Support V7 (adds memmap support)
Date: Thu, 20 Sep 2007 11:07:18 -0700 (PDT)
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Cc: Andrea Arcangeli <andrea@suse.de>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Nathan Scott <nscott@aconex.com>,
	Nick Piggin <nickpiggin@yahoo.com.au>,
	Mel Gorman <mel@skynet.ie>, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
	William Lee Irwin III <wli@holomorphy.com>,
	Jens Axboe <jens.axboe@oracle.com>,
	Badari Pulavarty <pbadari@gmail.com>,
	Maxim Levitsky <maximlevitsky@gmail.com>,
	Fengguang Wu <fengguang.wu@gmail.com>,
	swin wang <wangswin@gmail.com>, totty.lu@gmail.com,
	hugh@veritas.com, joern@lazybastard.org
To: David Chinner <dgc@sgi.com>
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On Thu, 20 Sep 2007, David Chinner wrote:

> > Disagree, the mmap side is not a little change.
> 
> That's not in the filesystem, though. ;)

And its really only a minimal change for some function to loop over all 
4k pages and elsewhere index the right 4k subpage.