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Date: Mon, 19 Mar 2007 16:57:55 -0700 (PDT)
From: Christoph Lameter <clameter@sgi.com>
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To: Andrew Morton <akpm@linux-foundation.org>
cc: linux-mm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [QUICKLIST 1/5] Quicklists for page table pages V3
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On Mon, 19 Mar 2007, Andrew Morton wrote:

> Has it been proven that quicklists are superior to simply going direct to the
> page allocator for these pages?

Yes.
 
> Would it provide a superior solution if we were to a) stop zeroing out the
> pte's when doing a fullmm==1 teardown and b) go direct to the page allocator
> for these pages?

I doubt it. The zeroing is a by product of our way of serializing pte 
handling. Its going to be difficult to change that.