linux-kernel - Re: [PATCH] SLUB: use page allocator for PAGE

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Message-ID: <19f34abd0811220437w3e20f824m27578618777ae8b7@mail.gmail.com>
Date:	Sat, 22 Nov 2008 13:37:45 +0100
From:	"Vegard Nossum" <vegard.nossum@...il.com>
To:	"Pekka Enberg" <penberg@...helsinki.fi>
Cc:	"Mel Gorman" <mel@....ul.ie>,
	"Christoph Lameter" <cl@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] SLUB: use page allocator for PAGE_SIZE requests

On Sat, Nov 22, 2008 at 1:35 PM, Vegard Nossum <vegard.nossum@...il.com> wrote:
> On Sat, Nov 22, 2008 at 1:32 PM, Vegard Nossum <vegard.nossum@...il.com> wrote:
>> From 4d526db4781aaab86cb79ff8135bb0e2bc560598 Mon Sep 17 00:00:00 2001
>> From: Vegard Nossum <vegard.nossum@...il.com>
>> Date: Sat, 22 Nov 2008 13:27:54 +0100
>> Subject: [PATCH] SLUB: use page allocator for PAGE_SIZE requests
>>
>> It seems strange that we should use the page allocator for
>> requests of (PAGE_SIZE + 1) bytes or more, and not for requests
>> that are exactly PAGE_SIZE.
>
> Actually, there are some more places that need to be fixed. I think
> I'll send an updated patch that fixes all of them.

ACTUALLY, please ignore whole thread. I now read the commit message of

commit 331dc558fa020451ff773973cee855fd721aa88e
Author: Christoph Lameter <clameter@....com>
Date:   Thu Feb 14 14:28:09 2008 -0800

    slub: Support 4k kmallocs again to compensate for page allocator slowness

:-/

Sorry for the noise.


Vegard

-- 
"The animistic metaphor of the bug that maliciously sneaked in while
the programmer was not looking is intellectually dishonest as it
disguises that the error is the programmer's own creation."
	-- E. W. Dijkstra, EWD1036
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