On Tue, Oct 15, 2013 at 05:39:09PM -0700, Eric Dumazet wrote:
> On Wed, 2013-10-16 at 09:28 +0900, Simon Horman wrote:
> > > I guess things like NFQUEUE could happen ?
> > Could you expand a little?
> This was to point that between IPVS and ipv6 stack we might have a
> delay, and daddr was maybe pointed to a freed memory.
> IP6CB only uses 24 bytes, so I think you would be safe adding 16 bytes.
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
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