1 files changed, 4 insertions, 5 deletions

diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 5c965ecc96a0..ca03a1dcbc8f 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -475,6 +475,7 @@ struct sock *inet_csk_accept(struct sock *sk, int flags, int *err, bool kern)
                 }
                 spin_unlock_bh(&queue->fastopenq.lock);
         }
+        mem_cgroup_sk_alloc(newsk);
 out:
         release_sock(sk);
         if (req)
@@ -537,9 +538,10 @@ struct dst_entry *inet_csk_route_req(const struct sock *sk,
 {
         const struct inet_request_sock *ireq = inet_rsk(req);
         struct net *net = read_pnet(&ireq->ireq_net);
-        struct ip_options_rcu *opt = ireq->opt;
+        struct ip_options_rcu *opt;
         struct rtable *rt;
 
+        opt = rcu_dereference(ireq->ireq_opt);
         flowi4_init_output(fl4, ireq->ir_iif, ireq->ir_mark,
                            RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE,
                            sk->sk_protocol, inet_sk_flowi_flags(sk),
@@ -573,10 +575,9 @@ struct dst_entry *inet_csk_route_child_sock(const struct sock *sk,
         struct flowi4 *fl4;
         struct rtable *rt;
 
+        opt = rcu_dereference(ireq->ireq_opt);
         fl4 = &newinet->cork.fl.u.ip4;
 
-        rcu_read_lock();
-        opt = rcu_dereference(newinet->inet_opt);
         flowi4_init_output(fl4, ireq->ir_iif, ireq->ir_mark,
                            RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE,
                            sk->sk_protocol, inet_sk_flowi_flags(sk),
@@ -589,13 +590,11 @@ struct dst_entry *inet_csk_route_child_sock(const struct sock *sk,
                 goto no_route;
         if (opt && opt->opt.is_strictroute && rt->rt_uses_gateway)
                 goto route_err;
-        rcu_read_unlock();
         return &rt->dst;
 
 route_err:
         ip_rt_put(rt);
 no_route:
-        rcu_read_unlock();
         __IP_INC_STATS(net, IPSTATS_MIB_OUTNOROUTES);
         return NULL;
 }