netdev - Re: [PATCH] INET : removes per bucket rwlock in tcp/dccp ehash table

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Message-Id: <20071104.203508.11916143.davem@davemloft.net>
Date:	Sun, 04 Nov 2007 20:35:08 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	ak@...e.de
Cc:	dada1@...mosbay.com, netdev@...r.kernel.org, acme@...hat.com,
	jarkao2@...pl
Subject: Re: [PATCH] INET : removes per bucket rwlock in tcp/dccp ehash
 table

From: David Miller <davem@...emloft.net>
Date: Sun, 04 Nov 2007 20:24:54 -0800 (PST)

> From: Andi Kleen <ak@...e.de>
> Date: Mon, 5 Nov 2007 00:01:03 +0100
> 
> > If it's for sparse cpu ids -- x86 handles those with an 
> > translation array.
> 
> I would rather not do this, so much assembler code indexes straight
> into the per-cpu arrays.

Also, at current rates, I'll need to be able to support
4096 cpus for real not very long from now :-)
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