Re: [PATCH] remove 2TB block device limit

[Christoph Hellwig]

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.