[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS.
Introduce per-net_device inlines: dev_net(), dev_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/ip_fragment.c b/net/ipv4/ip_fragment.c
index 8b448c4..fcb60e7 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -571,7 +571,7 @@
IP_INC_STATS_BH(IPSTATS_MIB_REASMREQDS);
- net = skb->dev ? skb->dev->nd_net : skb->dst->dev->nd_net;
+ net = skb->dev ? dev_net(skb->dev) : dev_net(skb->dst->dev);
/* Start by cleaning up the memory. */
if (atomic_read(&net->ipv4.frags.mem) > net->ipv4.frags.high_thresh)
ip_evictor(net);