commit 1b1bc49c0fc0501bf0d1366a2a5e5c1f8dcf9cb1
author Pablo Neira Ayuso <pablo@netfilter.org> Wed Oct 01 13:53:20 2014 +0200
committer Pablo Neira Ayuso <pablo@netfilter.org> Thu Oct 02 18:30:54 2014 +0200
tree aa9308f86af127e4f7daf0311d5bbe8cf7466f55
parent 1109a90c01177e8f4a5fd95c5b685ad02f1fe9bb

netfilter: nf_tables: wait for call_rcu completion on module removal

Make sure the objects have been released before the nf_tables modules
is removed.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

net/netfilter/nf_tables_api.c

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 19e79f0..556a0df 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -4163,6 +4163,7 @@
 {
 	unregister_pernet_subsys(&nf_tables_net_ops);
 	nfnetlink_subsys_unregister(&nf_tables_subsys);
+	rcu_barrier();
 	nf_tables_core_module_exit();
 	kfree(info);
 }