linux-kernel - Re: [PATCH] x86: fix PAE pmd

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Message-Id: <1210277297.7905.74.camel@nimitz.home.sr71.net>
Date:	Thu, 08 May 2008 13:08:17 -0700
From:	Dave Hansen <dave@...ux.vnet.ibm.com>
To:	Matt Mackall <mpm@...enic.com>
Cc:	Hugh Dickins <hugh@...itas.com>,
	Nishanth Aravamudan <nacc@...ibm.com>,
	Hans Rosenfeld <hans.rosenfeld@....com>,
	Ingo Molnar <mingo@...e.hu>,
	Jeff Chua <jeff.chua.linux@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Gabriel C <nix.or.die@...glemail.com>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH] x86: fix PAE pmd_bad bootup warning

On Thu, 2008-05-08 at 14:49 -0500, Matt Mackall wrote:
> I'd gone to some lengths to pull VMAs out of the picture as it's quite
> ugly to have to simultaneously walk VMAs and pagetables. But I may have
> to concede that living with hugepages requires it.

Yeah, it will definitely change the way that we have to do the pagetable
walk.

Should we just pass the mm around and make anyone that really wants to
get the VMAs do the lookup themselves?  Or, should we just provide the
VMA?

I'll start with just the mm and see where it goes...

-- Dave

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