Re: [PATCH 2/2] netfilter: conntrack: optional reliable conntrack event delivery

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Pablo Neira Ayuso wrote:
Hi Patrick,

A couple of minor issues related to this patch.

Patrick McHardy wrote:
+    hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode);
Why is _rcu used? The lists are never used for a lookup.

There's no hlist_nulls_del() operation without rcu. I have a patch here
to add hlist_nulls_add_head() and hlist_nulls_del() although I guess
that you are going to tell me that you cannot apply that patch? So,
where to go?

Either way is fine I guess. Adding non _rcu function makes sense
I think (Eric CCed to correct me :)). But there's also no harm
in using the RCU functions as long as you add a comment stating
that you don't in fact rely on the RCU properties to avoid confusing
people.
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