linux-kernel - Re: x86: 4kstacks default

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Message-Id: <20080420145020.217ecdd4.akpm@linux-foundation.org>
Date:	Sun, 20 Apr 2008 14:50:20 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	andi@...stfloor.org, joern@...fs.org, w@....eu, lkml@....ca,
	bunk@...nel.org, alan@...rguk.ukuu.org.uk, shawn.bohrer@...il.com,
	mingo@...e.hu, linux-kernel@...r.kernel.org, tglx@...utronix.de
Subject: Re: x86: 4kstacks default

> On Sun, 20 Apr 2008 11:50:53 -0700 Arjan van de Ven <arjan@...radead.org> wrote:
> On Sun, 20 Apr 2008 20:19:30 +0200
> Andi Kleen <andi@...stfloor.org> wrote:
> 
> > In theory if you e.g. convert a recursive algorithm
> > to iterative you might save some cache foot print, but I don't
> > think that really happens in kernel code.
> > 
> 
> this is what Al did for the symlink recursion thing, and Jens did for the block layer...
> so yes this conversion does happen for real.

md got mostly-fixed too, via Neil's patch which sat in -mm for nearly two
years.

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