[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/route.c b/net/ipv4/route.c
index 2941ef2..7768d71 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -284,7 +284,7 @@
rcu_read_lock_bh();
r = rcu_dereference(rt_hash_table[st->bucket].chain);
while (r) {
- if (r->u.dst.dev->nd_net == st->p.net &&
+ if (dev_net(r->u.dst.dev) == st->p.net &&
r->rt_genid == st->genid)
return r;
r = rcu_dereference(r->u.dst.rt_next);
@@ -312,7 +312,7 @@
struct rtable *r)
{
while ((r = __rt_cache_get_next(st, r)) != NULL) {
- if (r->u.dst.dev->nd_net != st->p.net)
+ if (dev_net(r->u.dst.dev) != st->p.net)
continue;
if (r->rt_genid == st->genid)
break;
@@ -680,7 +680,7 @@
static inline int compare_netns(struct rtable *rt1, struct rtable *rt2)
{
- return rt1->u.dst.dev->nd_net == rt2->u.dst.dev->nd_net;
+ return dev_net(rt1->u.dst.dev) == dev_net(rt2->u.dst.dev);
}
/*
@@ -1164,7 +1164,7 @@
if (!in_dev)
return;
- net = dev->nd_net;
+ net = dev_net(dev);
if (new_gw == old_gw || !IN_DEV_RX_REDIRECTS(in_dev)
|| ipv4_is_multicast(new_gw) || ipv4_is_lbcast(new_gw)
|| ipv4_is_zeronet(new_gw))
@@ -1195,7 +1195,7 @@
rth->fl.oif != ikeys[k] ||
rth->fl.iif != 0 ||
rth->rt_genid != atomic_read(&rt_genid) ||
- rth->u.dst.dev->nd_net != net) {
+ dev_net(rth->u.dst.dev) != net) {
rthp = &rth->u.dst.rt_next;
continue;
}
@@ -1454,7 +1454,7 @@
rth->rt_src == iph->saddr &&
rth->fl.iif == 0 &&
!(dst_metric_locked(&rth->u.dst, RTAX_MTU)) &&
- rth->u.dst.dev->nd_net == net &&
+ dev_net(rth->u.dst.dev) == net &&
rth->rt_genid == atomic_read(&rt_genid)) {
unsigned short mtu = new_mtu;
@@ -1530,9 +1530,9 @@
{
struct rtable *rt = (struct rtable *) dst;
struct in_device *idev = rt->idev;
- if (dev != dev->nd_net->loopback_dev && idev && idev->dev == dev) {
+ if (dev != dev_net(dev)->loopback_dev && idev && idev->dev == dev) {
struct in_device *loopback_idev =
- in_dev_get(dev->nd_net->loopback_dev);
+ in_dev_get(dev_net(dev)->loopback_dev);
if (loopback_idev) {
rt->idev = loopback_idev;
in_dev_put(idev);
@@ -1576,7 +1576,7 @@
if (rt->fl.iif == 0)
src = rt->rt_src;
- else if (fib_lookup(rt->u.dst.dev->nd_net, &rt->fl, &res) == 0) {
+ else if (fib_lookup(dev_net(rt->u.dst.dev), &rt->fl, &res) == 0) {
src = FIB_RES_PREFSRC(res);
fib_res_put(&res);
} else
@@ -1900,7 +1900,7 @@
__be32 spec_dst;
int err = -EINVAL;
int free_res = 0;
- struct net * net = dev->nd_net;
+ struct net * net = dev_net(dev);
/* IP on this device is disabled. */
@@ -2071,7 +2071,7 @@
int iif = dev->ifindex;
struct net *net;
- net = dev->nd_net;
+ net = dev_net(dev);
tos &= IPTOS_RT_MASK;
hash = rt_hash(daddr, saddr, iif);
@@ -2084,7 +2084,7 @@
rth->fl.oif == 0 &&
rth->fl.mark == skb->mark &&
rth->fl.fl4_tos == tos &&
- rth->u.dst.dev->nd_net == net &&
+ dev_net(rth->u.dst.dev) == net &&
rth->rt_genid == atomic_read(&rt_genid)) {
dst_use(&rth->u.dst, jiffies);
RT_CACHE_STAT_INC(in_hit);
@@ -2486,7 +2486,7 @@
rth->fl.mark == flp->mark &&
!((rth->fl.fl4_tos ^ flp->fl4_tos) &
(IPTOS_RT_MASK | RTO_ONLINK)) &&
- rth->u.dst.dev->nd_net == net &&
+ dev_net(rth->u.dst.dev) == net &&
rth->rt_genid == atomic_read(&rt_genid)) {
dst_use(&rth->u.dst, jiffies);
RT_CACHE_STAT_INC(out_hit);
@@ -2795,7 +2795,7 @@
rcu_read_lock_bh();
for (rt = rcu_dereference(rt_hash_table[h].chain), idx = 0; rt;
rt = rcu_dereference(rt->u.dst.rt_next), idx++) {
- if (rt->u.dst.dev->nd_net != net || idx < s_idx)
+ if (dev_net(rt->u.dst.dev) != net || idx < s_idx)
continue;
if (rt->rt_genid != atomic_read(&rt_genid))
continue;