From: Andi Kleen <ak@suse.de>
To: Christoph Lameter <clameter@sgi.com>
Cc: Andi Kleen <ak@suse.de>, Mel Gorman <mel@skynet.ie>,
Lee.Schermerhorn@hp.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [PATCH 3/4] Embed zone_id information within the zonelist->zones pointer
Date: Tue, 14 Aug 2007 00:58:41 +0200 [thread overview]
Message-ID: <20070813225841.GG3406@bingen.suse.de> (raw)
In-Reply-To: <Pine.LNX.4.64.0708131457190.28445@schroedinger.engr.sgi.com>
On Mon, Aug 13, 2007 at 03:00:14PM -0700, Christoph Lameter wrote:
> You said that ZONE_DMA will still be there right? So the zone will be
There will be a (variable sized) dma zone, but not a ZONE_DMA entry in pgdat
or in the the fallback lists.
>
> > There are still other architectures that use it. Biggest offender
> > is s390. I'll leave them to their respective maintainers.
>
> IA64 also uses ZONE_DMA to support 32bit controllers.
ZONE_DMA32 I thought? That one is not changed.
>
> So I think we can only get rid of ZONE_DMA in its 16MB incarnation for
> i386 and x86_64.
Correct.
>
> But you will be keeping ZONE_DMA32?
Yes.
> If so then it may be better to drop ZONE_DMA32 and make ZONE_DMA be below
> 4GB like other 64bit arches.
That might be possible as a followup, but would change the driver
API. Is it worth it?
-Andi
WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <ak@suse.de>
To: Christoph Lameter <clameter@sgi.com>
Cc: Andi Kleen <ak@suse.de>, Mel Gorman <mel@skynet.ie>,
Lee.Schermerhorn@hp.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [PATCH 3/4] Embed zone_id information within the zonelist->zones pointer
Date: Tue, 14 Aug 2007 00:58:41 +0200 [thread overview]
Message-ID: <20070813225841.GG3406@bingen.suse.de> (raw)
In-Reply-To: <Pine.LNX.4.64.0708131457190.28445@schroedinger.engr.sgi.com>
On Mon, Aug 13, 2007 at 03:00:14PM -0700, Christoph Lameter wrote:
> You said that ZONE_DMA will still be there right? So the zone will be
There will be a (variable sized) dma zone, but not a ZONE_DMA entry in pgdat
or in the the fallback lists.
>
> > There are still other architectures that use it. Biggest offender
> > is s390. I'll leave them to their respective maintainers.
>
> IA64 also uses ZONE_DMA to support 32bit controllers.
ZONE_DMA32 I thought? That one is not changed.
>
> So I think we can only get rid of ZONE_DMA in its 16MB incarnation for
> i386 and x86_64.
Correct.
>
> But you will be keeping ZONE_DMA32?
Yes.
> If so then it may be better to drop ZONE_DMA32 and make ZONE_DMA be below
> 4GB like other 64bit arches.
That might be possible as a followup, but would change the driver
API. Is it worth it?
-Andi
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2007-08-13 22:04 UTC|newest]
Thread overview: 102+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-09 21:06 [PATCH 0/4] Use one zonelist per node instead of multiple zonelists v3 Mel Gorman
2007-08-09 21:06 ` Mel Gorman
2007-08-09 21:06 ` [PATCH 1/4] Use zonelists instead of zones when direct reclaiming pages Mel Gorman
2007-08-09 21:06 ` Mel Gorman
2007-08-09 21:19 ` Christoph Lameter
2007-08-09 21:19 ` Christoph Lameter
2007-08-09 21:06 ` [PATCH 2/4] Use one zonelist that is filtered instead of multiple zonelists Mel Gorman
2007-08-09 21:06 ` Mel Gorman
2007-08-09 21:27 ` Christoph Lameter
2007-08-09 21:27 ` Christoph Lameter
2007-08-09 21:07 ` [PATCH 3/4] Embed zone_id information within the zonelist->zones pointer Mel Gorman
2007-08-09 21:07 ` Mel Gorman
2007-08-09 21:37 ` Christoph Lameter
2007-08-09 21:37 ` Christoph Lameter
2007-08-09 23:33 ` Mel Gorman
2007-08-09 23:33 ` Mel Gorman
2007-08-10 1:44 ` Christoph Lameter
2007-08-10 1:44 ` Christoph Lameter
2007-08-10 10:47 ` Mel Gorman
2007-08-10 10:47 ` Mel Gorman
2007-08-10 17:37 ` Christoph Lameter
2007-08-10 17:37 ` Christoph Lameter
2007-08-10 18:13 ` Andi Kleen
2007-08-10 18:13 ` Andi Kleen
2007-08-10 19:02 ` Christoph Lameter
2007-08-10 19:02 ` Christoph Lameter
2007-08-11 1:04 ` Andi Kleen
2007-08-11 1:04 ` Andi Kleen
2007-08-13 21:25 ` Christoph Lameter
2007-08-13 21:25 ` Christoph Lameter
2007-08-13 22:50 ` Andi Kleen
2007-08-13 22:50 ` Andi Kleen
2007-08-13 22:00 ` Christoph Lameter
2007-08-13 22:00 ` Christoph Lameter
2007-08-13 22:58 ` Andi Kleen [this message]
2007-08-13 22:58 ` Andi Kleen
2007-08-13 22:09 ` Christoph Lameter
2007-08-13 22:09 ` Christoph Lameter
2007-08-13 23:08 ` Andi Kleen
2007-08-13 23:08 ` Andi Kleen
2007-08-13 22:22 ` Christoph Lameter
2007-08-13 22:22 ` Christoph Lameter
2007-08-13 23:42 ` Andi Kleen
2007-08-13 23:42 ` Andi Kleen
2007-08-13 22:52 ` Christoph Lameter
2007-08-13 22:52 ` Christoph Lameter
2007-08-13 23:55 ` Andi Kleen
2007-08-13 23:55 ` Andi Kleen
2007-08-13 23:12 ` Christoph Lameter
2007-08-13 23:12 ` Christoph Lameter
2007-08-14 0:16 ` Andi Kleen
2007-08-14 0:16 ` Andi Kleen
2007-08-13 23:25 ` Christoph Lameter
2007-08-13 23:25 ` Christoph Lameter
2007-08-14 0:25 ` Andi Kleen
2007-08-14 0:25 ` Andi Kleen
2007-08-13 22:38 ` Christoph Lameter
2007-08-13 22:38 ` Christoph Lameter
2007-08-13 23:43 ` Andi Kleen
2007-08-13 23:43 ` Andi Kleen
2007-08-13 22:54 ` Christoph Lameter
2007-08-13 22:54 ` Christoph Lameter
2007-08-14 0:00 ` Andi Kleen
2007-08-14 0:00 ` Andi Kleen
2007-08-13 23:16 ` Christoph Lameter
2007-08-13 23:16 ` Christoph Lameter
2007-08-14 0:16 ` Andi Kleen
2007-08-14 0:16 ` Andi Kleen
2007-08-13 23:27 ` Christoph Lameter
2007-08-13 23:27 ` Christoph Lameter
2007-08-14 0:26 ` Andi Kleen
2007-08-14 0:26 ` Andi Kleen
2007-08-14 19:56 ` Christoph Lameter
2007-08-14 19:56 ` Christoph Lameter
2007-08-13 23:22 ` Alan Cox
2007-08-13 23:22 ` Alan Cox
2007-08-14 0:14 ` Andi Kleen
2007-08-14 0:14 ` Andi Kleen
2007-08-13 23:44 ` Alan Cox
2007-08-13 23:44 ` Alan Cox
2007-08-14 19:11 ` Andy Isaacson
2007-08-14 19:11 ` Andy Isaacson
2007-08-14 20:23 ` Andi Kleen
2007-08-14 20:23 ` Andi Kleen
2007-08-14 19:43 ` Andy Isaacson
2007-08-14 19:43 ` Andy Isaacson
2007-08-14 21:05 ` Andi Kleen
2007-08-14 21:05 ` Andi Kleen
2007-08-15 11:37 ` Ralf Baechle
2007-08-15 11:37 ` Ralf Baechle
2007-08-15 12:59 ` Andi Kleen
2007-08-15 12:59 ` Andi Kleen
2007-08-15 12:32 ` Ralf Baechle
2007-08-15 12:32 ` Ralf Baechle
2007-08-15 19:59 ` Christoph Lameter
2007-08-15 19:59 ` Christoph Lameter
2007-08-09 21:07 ` [PATCH 4/4] Apply MPOL_BIND policy to two highest zones when highest is ZONE_MOVABLE Mel Gorman
2007-08-09 21:07 ` Mel Gorman
2007-08-09 21:37 ` Christoph Lameter
2007-08-09 21:37 ` Christoph Lameter
2007-08-09 21:19 ` [PATCH 0/4] Use one zonelist per node instead of multiple zonelists v3 Christoph Lameter
2007-08-09 21:19 ` Christoph Lameter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20070813225841.GG3406@bingen.suse.de \
--to=ak@suse.de \
--cc=Lee.Schermerhorn@hp.com \
--cc=clameter@sgi.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mel@skynet.ie \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.