linux-kernel - Re: [RFC/PATCH 2/3] SLUB: make ksize() more strict for page allocator pass-through

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Message-ID: <Pine.LNX.4.64.0805211417340.17976@schroedinger.engr.sgi.com>
Date:	Wed, 21 May 2008 14:18:29 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Pekka Enberg <penberg@...helsinki.fi>
cc:	linux-kernel@...r.kernel.org, mpm@...enic.com, lethal@...ux-sh.org,
	dhowells@...hat.com
Subject: Re: [RFC/PATCH 2/3] SLUB: make ksize() more strict for page allocator
 pass-through

On Wed, 21 May 2008, Pekka Enberg wrote:

> Hmm, where? page_address() already references ->virtual. I suppose

The ->virtual case is a very special case. page_address() currently should 
reduce to a simple shift and an add with VMEMMAP.

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