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From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] INET : removes per bucket rwlock in tcp/dccp ehash
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Date: Thu, 01 Nov 2007 14:52:04 -0700 (PDT)
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From: Eric Dumazet <dada1@cosmosbay.com>
Date: Thu, 01 Nov 2007 20:17:35 +0100

> But if it was an issue, the spinlock array used in IP route cache
> would have the same problem and *someone* should already have
> complained...

I'd say that having a few MB less of rwlock cache lines to
touch offsets the issue even if it does exist.