From: Robin Holt <holt@sgi.com>
To: linux@horizon.com
Cc: albert@users.sourceforge.net, linux-kernel@vger.kernel.org
Subject: Re: 4level page tables for Linux
Date: Thu, 14 Oct 2004 06:15:26 -0500 [thread overview]
Message-ID: <20041014111526.GD19122@lnx-holt.americas.sgi.com> (raw)
In-Reply-To: <20041014092540.5416.qmail@science.horizon.com>
On Thu, Oct 14, 2004 at 09:25:40AM -0000, linux@horizon.com wrote:
> > Numbers for all of them would be easy to deal with.
> > Like this: pd1, pd2, pd3, pd4...
> >
> > I'd number going toward the page, because that's
> > the order in which these things get walked.
>
> On the other hand, these extensions tend to get made to the top,
> and it's confusing if, in a 2-level system, only pd3 and pd4 are used.
>
> Perhaps a little-endian scheme (pd1 = pte, pt2=pmd, pd4=pgd) would
> be better after all.
I think the pd4=pgd, etc makes more sense as well. The names assigned
now go from smallest scope (pte=pd1) to largest scope (pgd=pd3). Feels
consistent.
Robin
next prev parent reply other threads:[~2004-10-14 11:15 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-14 9:25 linux
2004-10-14 11:15 ` Robin Holt [this message]
2004-10-17 2:57 ` H. Peter Anvin
-- strict thread matches above, loose matches on Subject: below --
2004-10-13 23:22 Albert Cahalan
2004-10-13 23:51 ` Andrea Arcangeli
2004-10-14 1:15 ` Albert Cahalan
2004-10-12 13:59 Andi Kleen
2004-10-12 18:48 ` Dave Hansen
2004-10-12 19:03 ` Andi Kleen
2004-10-13 18:41 ` Andrea Arcangeli
2004-10-13 19:35 ` Andi Kleen
2004-10-13 20:04 ` Andrea Arcangeli
2004-10-18 17:02 ` Christoph Lameter
2004-10-18 17:21 ` Andi Kleen
2004-10-18 17:38 ` Andrea Arcangeli
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