From: Andrew Morton <akpm@linux-foundation.org>
To: Andi Kleen <andi@firstfloor.org>
Cc: Ingo Molnar <mingo@elte.hu>,
linux-kernel@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [v2.6.26] what's brewing in x86.git for v2.6.26
Date: Thu, 17 Apr 2008 03:18:29 -0700 [thread overview]
Message-ID: <20080417031829.15ec73df.akpm@linux-foundation.org> (raw)
In-Reply-To: <87zlrshjtz.fsf@basil.nowhere.org>
On Thu, 17 Apr 2008 12:11:36 +0200 Andi Kleen <andi@firstfloor.org> wrote:
> Andrew Morton <akpm@linux-foundation.org> writes:
> >
> > Does it really really really need to consume one of our few remaining page
> > flags? We'll be in a mess when we run out.
>
> No we're not. Just the (imho always misguided) "encode zone/node number
> into flags" optimization has to be removed again or made 64bit only.
> Then there will be plenty of flags again.
hm. Or we add a new nid&zone field to the pageframe for 32bit NUMA. Just
don't tell Paul Mundt ;)
Need to work out what's going on with ia64's use of the upper 32 bits too.
I have a feeling it's using less than it used too but at 3AM I can't be
assed working it out.
> Really I see no real reason this can't be done with a small hash table
> again like x86-64 originally did.
How did that work? A pfn->zone-id hash table would be huge?
next prev parent reply other threads:[~2008-04-17 10:19 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-16 20:23 [v2.6.26] what's brewing in x86.git for v2.6.26 Ingo Molnar
2008-04-16 20:37 ` Roland Dreier
2008-04-16 22:18 ` Suresh Siddha
2008-04-16 20:50 ` Andi Kleen
2008-04-17 10:06 ` Alexander van Heukelum
2008-04-17 10:51 ` Andi Kleen
2008-04-17 13:33 ` Alexander van Heukelum
2008-04-18 8:38 ` Ingo Molnar
2008-04-18 10:51 ` Andi Kleen
2008-04-17 7:25 ` Andrew Morton
2008-04-17 7:45 ` Pekka Enberg
2008-04-17 8:20 ` Andrew Morton
2008-04-17 8:32 ` Pekka J Enberg
2008-04-17 8:34 ` Pekka Enberg
2008-04-17 8:40 ` Ingo Molnar
2008-04-17 8:42 ` Andrew Morton
2008-04-17 11:49 ` Christoph Hellwig
2008-04-17 11:56 ` Ingo Molnar
2008-04-17 18:01 ` Andrew Morton
2008-04-17 18:51 ` Ingo Molnar
2008-04-17 19:57 ` Andrew Morton
2008-04-17 20:18 ` Ingo Molnar
2008-04-18 9:33 ` Tomasz Kłoczko
2008-04-18 9:42 ` Ingo Molnar
2008-04-17 8:14 ` Andrew Morton
2008-04-17 8:57 ` Avi Kivity
2008-04-17 10:32 ` Johannes Weiner
2008-04-17 10:50 ` Andrew Morton
2008-04-17 11:49 ` Christoph Hellwig
2008-04-17 17:36 ` Andrew Morton
2008-04-17 8:30 ` Ingo Molnar
2008-04-17 8:40 ` Andrew Morton
2008-04-17 8:45 ` David Miller
2008-04-17 8:54 ` Andrew Morton
2008-04-17 8:56 ` Andrew Morton
2008-04-17 9:19 ` David Miller
2008-04-17 9:33 ` Andrew Morton
2008-04-17 9:06 ` Ingo Molnar
2008-04-17 9:18 ` Andrew Morton
2008-04-17 9:30 ` Ingo Molnar
2008-04-17 9:36 ` Andrew Morton
2008-04-17 9:46 ` Ingo Molnar
2008-04-17 10:06 ` Andrew Morton
2008-04-17 10:11 ` Andi Kleen
2008-04-17 10:18 ` Andrew Morton [this message]
2008-04-17 10:29 ` Andi Kleen
2008-04-17 10:19 ` Pekka Enberg
2008-04-17 10:33 ` Andrew Morton
2008-04-17 10:38 ` Ingo Molnar
2008-04-17 10:42 ` Pekka Enberg
2008-04-18 11:12 ` Nick Piggin
2008-04-17 14:01 ` Arjan van de Ven
2008-04-17 15:26 ` Ingo Molnar
2008-04-18 12:41 ` Ingo Molnar
2008-04-17 10:41 ` Pekka Enberg
2008-04-17 18:47 ` Vegard Nossum
2008-04-17 19:27 ` Ingo Molnar
2008-04-17 19:35 ` Ingo Molnar
2008-04-17 19:39 ` Vegard Nossum
2008-04-17 19:43 ` Andrew Morton
2008-04-17 20:39 ` Vegard Nossum
2008-04-17 20:55 ` Andrew Morton
2008-04-17 9:53 ` Andrew Morton
2008-04-17 7:48 ` Andrew Morton
2008-04-18 6:27 ` Andrew Morton
2008-04-18 6:38 ` David Miller
2008-04-18 7:47 ` Ingo Molnar
2008-04-18 8:00 ` Andrew Morton
2008-04-18 8:11 ` Christoph Hellwig
2008-04-18 8:18 ` David Miller
2008-04-18 12:48 ` Ingo Molnar
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