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From: Patrick McHardy <kaber@trash.net>
To: Stefan Berger <stefanb@linux.vnet.ibm.com>
Cc: netfilter-devel@vger.kernel.org, netfilter@vger.kernel.org,
	coreteam@netfilter.org
Subject: Re: [PATCH] [connlimit] connlimit-above early loop termination
Date: Fri, 11 Feb 2011 18:00:53 +0100	[thread overview]
Message-ID: <4D556B45.8030304@trash.net> (raw)
In-Reply-To: <1297441335.25407.9.camel@d941e-10>

On 11.02.2011 17:22, Stefan Berger wrote:
> The patch below introduces an early termination of the loop that is
> counting matches. It terminates once the counter has exceeded the
> threshold provided by the user. There's no point in continuing the loop
> afterwards and looking at other entries.
> 
> It plays together with the following code further below:
> 
> return (connections > info->limit) ^ info->inverse;
> 
> where connections is the result of the counted connection, which in turn
> is the matches variable in the loop. So once 
> 
>         -> matches = info->limit + 1    
> alias   -> matches > info->limit
> alias   -> matches > threshold 
> 
> we can terminate the loop.
> 

Applied, thanks Stefan.

  reply	other threads:[~2011-02-11 17:00 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-11 16:22 [PATCH] [connlimit] connlimit-above early loop termination Stefan Berger
2011-02-11 17:00 ` Patrick McHardy [this message]
2011-02-13 18:53   ` Stefan Berger

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