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Date: Tue, 14 May 2002 08:21:30 +0100
From: Christoph Hellwig <hch@infradead.org>
To: Andrew Morton <akpm@zip.com.au>
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Subject: Re: [PATCH] remove 2TB block device limit
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On Mon, May 13, 2002 at 07:09:59PM -0700, Andrew Morton wrote:
> 
> I think Christoph's point is that a pagecache index is not a sector
> number.  We agree that we need to plan for taking it to 64 bits, but
> it should be something different. Like pageindex_t, or whatever.

I don't think we want to increase it.  First it grow struct page by 32bits
and second 64bit arithmetic on 32bit plattforms is still very expensive.
I'd rather see PAGE_CACHE_SIZE growing to address the issues.