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Date: Thu, 26 Apr 2007 00:11:51 -0700 (PDT)
From: Christoph Lameter <clameter@sgi.com>
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To: Nick Piggin <nickpiggin@yahoo.com.au>
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       Maxim Levitsky <maximlevitsky@gmail.com>
Subject: Re: [00/17] Large Blocksize Support V3
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On Thu, 26 Apr 2007, Nick Piggin wrote:

> > Nick, what's the buffer layer? Are you talking about operations
> > based on bufferheads?
> 
> Yeah. Our pgoff_t->sector_t translation.

Sadly the buffers in the buffer layer still assume contiguous memory. You 
would have to add a series of pointers there and then add a layer to 
handle this.