[NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS.
Introduce per-sock inlines: sock_net(), sock_net_set()
and per-inet_timewait_sock inlines: twsk_net(), twsk_net_set().
Without CONFIG_NET_NS, no namespace other than &init_net exists.
Let's explicitly define them to help compiler optimizations.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index e54bc13..11700a4 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -849,7 +849,7 @@
{
rtnl_lock();
if (sk == mroute_socket) {
- IPV4_DEVCONF_ALL(sk->sk_net, MC_FORWARDING)--;
+ IPV4_DEVCONF_ALL(sock_net(sk), MC_FORWARDING)--;
write_lock_bh(&mrt_lock);
mroute_socket=NULL;
@@ -898,7 +898,7 @@
mroute_socket=sk;
write_unlock_bh(&mrt_lock);
- IPV4_DEVCONF_ALL(sk->sk_net, MC_FORWARDING)++;
+ IPV4_DEVCONF_ALL(sock_net(sk), MC_FORWARDING)++;
}
rtnl_unlock();
return ret;