Re: [RFC net-next] ipv6: Use destination address determined by IPVS

[Eric Dumazet <eric.dumazet@xxxxxxxxx>]

On Wed, 2013-10-16 at 11:13 +0900, Simon Horman wrote:

> That does seem very promising but while implementing it
> I hit a problem.
> 
> struct tcp_skb_cb includes a field of type struct inet6_skb_parm.  And
> expanding struct inet6_skb_parm by 16 bytes means that struct tcp_skb_cb is
> now larger than 48 bytes and no longer fits in skb->cb.
> 
> Is it appropriate to grow skb->cb as the comment above struct tcp_skb_cb
> suggests?

Ah well...

No, its not appropriate to grow sk_buff by 16 bytes, sorry.

You could not change struct inet6_skb_parm, but define IP6CB as
a compound 

struct ip6cb {
   struct inet6_skb_parm foo;
   struct in6_addr       bar;
};



--
To unsubscribe from this list: send the line "unsubscribe lvs-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html