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From: Patrick McHardy <kaber@trash.net>
To: hadi@cyberus.ca
Cc: Maillist netdev <netdev@oss.sgi.com>
Subject: Re: More tc action mess
Date: Wed, 19 Jan 2005 21:22:51 +0100	[thread overview]
Message-ID: <41EEC19B.3010504@trash.net> (raw)
In-Reply-To: <1106140256.1049.903.camel@jzny.localdomain>

jamal wrote:

>On Wed, 2005-01-19 at 00:09, Patrick McHardy wrote:
>  
>
>>This means we must convert all paths on which tcf_action_exec is called
>>to use struct sk_buff ** :(
>>    
>>
> 
>
>No, just restore the code that you took out in one of your patches
>right above that line which reads:
>
>----
>        if (skb_cloned(skb)) {
>                if (pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
>                        return -1;
>                }
>        }
>----
>
>Depending on what you do in netfilter lately, you may wanna take out
>the skb_cloned() call.
>  
>

This does not help. Netfilter calls skb_ip_make_writable if it has to
touch the packet, if it is shared or cloned the packet will be copied.
Despite this, this is hardly a fix as long as the ->act function takes
a struct sk_buff **.

Regards
Patrick

  reply	other threads:[~2005-01-19 20:22 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-01-19  5:09 More tc action mess Patrick McHardy
2005-01-19 13:10 ` jamal
2005-01-19 20:22   ` Patrick McHardy [this message]
2005-01-20  4:30     ` jamal
2005-01-20  6:32       ` Patrick McHardy
2005-01-20 13:44         ` jamal

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