ipv4: prepare net initialization for IP accounting

Some places, that deal with IP statistics already have where to
get a struct net from, but use it directly, without declaring
a separate variable on the stack.

So, save this net on the stack for future IP_XXX_STATS macros.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index fdd4faa1f120..048ef57edc1d 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -656,8 +656,10 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
                                     .uli_u = { .ports =
                                                { .sport = inet->sport,
                                                  .dport = dport } } };
+                struct net *net = sock_net(sk);
+
                 security_sk_classify_flow(sk, &fl);
-                err = ip_route_output_flow(sock_net(sk), &rt, &fl, sk, 1);
+                err = ip_route_output_flow(net, &rt, &fl, sk, 1);
                 if (err) {
                         if (err == -ENETUNREACH)
                                 IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);