netdev - Re: [PATCH 1/3] [NET] fib_rules: goto rule action

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Date:	Mon, 26 Mar 2007 17:19:16 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	tgraf@...g.ch
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH 1/3] [NET] fib_rules: goto rule action

From: Thomas Graf <tgraf@...g.ch>
Date: Tue, 27 Mar 2007 01:54:51 +0200

> This patch adds a new rule action FR_ACT_GOTO which allows
> to skip a set of rules by jumping to another rule. The rule
> to jump to is specified via the FRA_GOTO attribute which
> carries a rule preference.
> 
> Referring to a rule which doesn't exists is explicitely allowed.
> Such goto rules are marked with the flag FIB_RULE_UNRESOLVED
> and will act like a rule with a non-matching selector. The rule
> will become functional as soon as its target is present.
> 
> The goto action enables performance optimizations by reducing
> the average number of rules that have to be passed per lookup.
> 
> Example:
> 0:      from all lookup local 
> 40:     not from all to 192.168.23.128 goto 32766
> 41:     from all fwmark 0xa blackhole
> 42:     from all fwmark 0xff blackhole
> 32766:  from all lookup main 
> 
> Signed-off-by: Thomas Graf <tgraf@...g.ch>

This looks excellent, applied to net-2.6.22, thanks Thomas.
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