Re: [PATCH nf] netfilter: conntrack: resched in nf_ct_iterate_cleanup

[Florian Westphal <fw@strlen.de>]

Pablo Neira Ayuso <pablo@netfilter.org> wrote:
> BTW, the atomic chain notifier in IPv6 seems to be there to handle
> this update from the packet path:
> 
>  ndisc_rcv()
>  ndisc_router_discovery()
>  addrconf_prefix_rcv()
>  manage_tempaddrs()
>  ipv6_add_addr()
>  inet6addr_notifier_call_chain()
> 
> Probably we can get Hannes have a look into this, I think we can
> convert this chain to blocking one through workqueue since
> addrconf_prefix_rcv() returns void. The remaining call sites of
> inet6addr_notifier_call_chain() that I could tracked come from paths
> where I can see ASSERT_RTNL(), so user context is guaranteed.
>
> I'm telling this become I remember that we discussed in netconf'14
> Chicago that it would be good to get rid of this kind og asymmetries
> between IPv4 and IPv6.

Ok, I agree, that would be a lot nicer.

I'll have a look.