rtnl_lock() doesn't protect net::ct::count,
and it's not needed for__nf_ct_unconfirmed_destroy()
and for nf_queue_nf_hook_drop().
Signed-off-by: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx>
---
net/netfilter/nf_conntrack_core.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 370f9b7f051b..41ff04ee2554 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -1763,7 +1763,6 @@ nf_ct_iterate_destroy(int (*iter)(struct nf_conn *i, void *data), void *data)
{
struct net *net;
- rtnl_lock();
down_read(&net_rwsem);
for_each_net(net) {
if (atomic_read(&net->ct.count) == 0)
@@ -1772,7 +1771,6 @@ nf_ct_iterate_destroy(int (*iter)(struct nf_conn *i, void *data), void *data)
nf_queue_nf_hook_drop(net);
}
up_read(&net_rwsem);
- rtnl_unlock();
/* Need to wait for netns cleanup worker to finish, if its
* running -- it might have deleted a net namespace from
