linux-kernel - Re: [PATCH] i386: remove dead code in pgtable_cache

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Date:	Wed, 10 Oct 2007 14:09:25 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
cc:	Andi Kleen <ak@...e.de>,
	William Lee Irwin III <wli@...omorphy.com>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] i386:  remove dead code in pgtable_cache_init

On Wed, 10 Oct 2007, Jeremy Fitzhardinge wrote:

> The conversion from using a slab cache to quicklist left some residual dead code.
> 
> I note that in the conversion it now always allocates a whole page for
> the pgd, rather than the 32 bytes needed for a PAE pgd.  Was this
> intended?

I believe that virtualization support needed a full pgd.
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