On Thu, Oct 20, 2016 at 6:47 AM, Eric Dumazet <eric.duma...@gmail.com> wrote:
> On Wed, 2016-10-19 at 23:35 -0700, Cong Wang wrote:
>> Baozeng reported this deadlock case:
>
> ...
>
>> +
>> +void ipv6_sock_mc_close(struct sock *sk)
>> +{
>> + struct ipv6_pinfo *np = inet6_sk(sk);
>> +
>> + if (!rcu_access_pointer(np->ipv6_mc_list))
>> + return;
>
> I wonder if rcu_dereference_protected(..., lockdep_sock_is_held(sk))
> could be used instead, to get lockdep support ?
Maybe, but this "problem" exists without my patch too, right?
