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.
next prev parent reply other threads:[~2011-02-11 17:01 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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