linux-kernel - Re: [00/41] Large Blocksize Support V7 (adds memmap support)

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Message-ID: <Pine.LNX.4.64.0709111302400.25781@schroedinger.engr.sgi.com>
Date:	Tue, 11 Sep 2007 13:03:44 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Andrea Arcangeli <andrea@...e.de>
cc:	Nick Piggin <nickpiggin@...oo.com.au>,
	torvalds@...ux-foundation.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, Christoph Hellwig <hch@....de>,
	Mel Gorman <mel@...net.ie>,
	William Lee Irwin III <wli@...omorphy.com>,
	David Chinner <dgc@....com>,
	Jens Axboe <jens.axboe@...cle.com>,
	Badari Pulavarty <pbadari@...il.com>,
	Maxim Levitsky <maximlevitsky@...il.com>,
	Fengguang Wu <fengguang.wu@...il.com>,
	swin wang <wangswin@...il.com>, totty.lu@...il.com,
	hugh@...itas.com, joern@...ybastard.org
Subject: Re: [00/41] Large Blocksize Support V7 (adds memmap support)

On Tue, 11 Sep 2007, Andrea Arcangeli wrote:

> Furthermore all the issues with writeprotect faults over MAP_PRIVATE
> regions will have to be addressed the same way with both approaches if
> we want real 100% 4k-granular backwards compatibility.

Could you be more specific as to why my patch does not address that issue?

> And if I'm terribly wrong and the variable order pagecache is the way
> to go for the long run, the 64k tlb feature will fit in that model
> very nicely too.

Right.
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