Date: Mon, 1 Mar 2004 02:18:55 -0800
From: Andrew Morton <akpm@osdl.org>
To: Nick Piggin <piggin@cyberone.com.au>
Cc: mfedyk@matchmail.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] 2.6.4-rc1-mm1: vm-kswapd-incremental-min (was Re: MM VM
 patches was: 2.6.3-mm4)
Message-Id: <20040301021855.0c0f994e.akpm@osdl.org>
In-Reply-To: <404307D7.8090102@cyberone.com.au>
References: <20040225185536.57b56716.akpm@osdl.org>
	<4042F38B.8020307@matchmail.com>
	<4042F7E6.1050904@cyberone.com.au>
	<4042FE0D.5030603@cyberone.com.au>
	<404307D7.8090102@cyberone.com.au>
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 748
Lines: 22

Nick Piggin <piggin@cyberone.com.au> wrote:
>
> Andrew, I think you had kswapd scanning in the direction opposite the
>  one indicated by your comments. Or maybe I've just confused myself?
> 

Nope, the node_zones[] array is indexed by

#define ZONE_DMA		0
#define ZONE_NORMAL		1
#define ZONE_HIGHMEM		2

Whereas the zonelist.zones[] array goes the other way:
[[[highmem,]normal,]dma,]NULL.

It's a complete dog's breakfast that stuff.  Hard to understand, not very
logical and insufficiently commented.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/