netdev - Re: [PATCH] inetpeer: optimizations

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Message-Id: <20091208.204648.38101137.davem@davemloft.net>
Date:	Tue, 08 Dec 2009 20:46:48 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH] inetpeer: optimizations

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Sat, 05 Dec 2009 13:11:51 +0100

> - Use atomic_dec_and_test() in inet_putpeer()
>   This takes/dirties the lock only if necessary.
> 
> - Group fields together, since they currently are in BSS and DATA section,
>   we have to dirty two cache lines instead of one.
> 
> Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>

Eric please resubmit this when net-next-2.6 opens back up.

Maybe add some comments so that people won't be confused about
semantics like Jarek was :-)
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