linux-kernel - Re: [PATCH 1/3] Fix COW D-cache aliasing on fork

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Message-Id: <20061020.194627.35015734.davem@davemloft.net>
Date:	Fri, 20 Oct 2006 19:46:27 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	torvalds@...l.org
Cc:	ralf@...ux-mips.org, nickpiggin@...oo.com.au, akpm@...l.org,
	linux-kernel@...r.kernel.org, anemo@....ocn.ne.jp,
	linux-arch@...r.kernel.org, schwidefsky@...ibm.com,
	James.Bottomley@...elEye.com
Subject: Re: [PATCH 1/3] Fix COW D-cache aliasing on fork

From: Linus Torvalds <torvalds@...l.org>
Date: Fri, 20 Oct 2006 19:37:24 -0700 (PDT)

> On Fri, 20 Oct 2006, David Miller wrote:
> > I think it could help for sun4m highmem configs.
> 
> Well, if you can re-create the performance numbers (Ralf - can you send 
> the full series with the final "remove the now unnecessary flush" to 
> Davem?), that will make deciding things easier, I think.
> 
> I suspect sparc, mips and arm are the main architectures where virtually 
> indexed caching really matters enough for this to be an issue at all.

Unfortunately, I don't have any sparc 32-bit systems any more,
so I can't really help out here.  I just make sure the build
keeps working :-)
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