[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/core/dev.c b/net/core/dev.c
index aebd086..8125348 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -216,7 +216,7 @@
/* Device list insertion */
static int list_netdevice(struct net_device *dev)
{
- struct net *net = dev->nd_net;
+ struct net *net = dev_net(dev);
ASSERT_RTNL();
@@ -852,8 +852,8 @@
struct net *net;
int ret;
- BUG_ON(!dev->nd_net);
- net = dev->nd_net;
+ BUG_ON(!dev_net(dev));
+ net = dev_net(dev);
ret = __dev_alloc_name(net, name, buf);
if (ret >= 0)
strlcpy(dev->name, buf, IFNAMSIZ);
@@ -877,9 +877,9 @@
struct net *net;
ASSERT_RTNL();
- BUG_ON(!dev->nd_net);
+ BUG_ON(!dev_net(dev));
- net = dev->nd_net;
+ net = dev_net(dev);
if (dev->flags & IFF_UP)
return -EBUSY;
@@ -2615,7 +2615,7 @@
if (v == SEQ_START_TOKEN)
seq_puts(seq, "Type Device Function\n");
- else if (pt->dev == NULL || pt->dev->nd_net == seq_file_net(seq)) {
+ else if (pt->dev == NULL || dev_net(pt->dev) == seq_file_net(seq)) {
if (pt->type == htons(ETH_P_ALL))
seq_puts(seq, "ALL ");
else
@@ -3689,8 +3689,8 @@
/* When net_device's are persistent, this will be fatal. */
BUG_ON(dev->reg_state != NETREG_UNINITIALIZED);
- BUG_ON(!dev->nd_net);
- net = dev->nd_net;
+ BUG_ON(!dev_net(dev));
+ net = dev_net(dev);
spin_lock_init(&dev->queue_lock);
spin_lock_init(&dev->_xmit_lock);
@@ -4011,7 +4011,7 @@
dev = (struct net_device *)
(((long)p + NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST);
dev->padded = (char *)dev - (char *)p;
- dev->nd_net = &init_net;
+ dev_net_set(dev, &init_net);
if (sizeof_priv) {
dev->priv = ((char *)dev +
@@ -4136,7 +4136,7 @@
/* Get out if there is nothing todo */
err = 0;
- if (dev->nd_net == net)
+ if (dev_net(dev) == net)
goto out;
/* Pick the destination device name, and ensure
@@ -4187,7 +4187,7 @@
dev_addr_discard(dev);
/* Actually switch the network namespace */
- dev->nd_net = net;
+ dev_net_set(dev, net);
/* Assign the new device name */
if (destname != dev->name)
diff --git a/net/core/dst.c b/net/core/dst.c
index 3a01a81..694cd2a 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -279,7 +279,7 @@
if (!unregister) {
dst->input = dst->output = dst_discard;
} else {
- dst->dev = dst->dev->nd_net->loopback_dev;
+ dst->dev = dev_net(dst->dev)->loopback_dev;
dev_hold(dst->dev);
dev_put(dev);
if (dst->neighbour && dst->neighbour->dev == dev) {
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 42ccaf5..942be93 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -618,7 +618,7 @@
void *ptr)
{
struct net_device *dev = ptr;
- struct net *net = dev->nd_net;
+ struct net *net = dev_net(dev);
struct fib_rules_ops *ops;
ASSERT_RTNL();
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 23c0a10..c978bd1 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -388,7 +388,7 @@
hash_val = tbl->hash(pkey, NULL);
for (n = tbl->hash_buckets[hash_val & tbl->hash_mask]; n; n = n->next) {
if (!memcmp(n->primary_key, pkey, key_len) &&
- (net == n->dev->nd_net)) {
+ dev_net(n->dev) == net) {
neigh_hold(n);
NEIGH_CACHE_STAT_INC(tbl, hits);
break;
@@ -1298,7 +1298,7 @@
struct neigh_parms *p, *ref;
struct net *net;
- net = dev->nd_net;
+ net = dev_net(dev);
ref = lookup_neigh_params(tbl, net, 0);
if (!ref)
return NULL;
@@ -2050,7 +2050,7 @@
s_idx = 0;
for (n = tbl->hash_buckets[h], idx = 0; n; n = n->next) {
int lidx;
- if (n->dev->nd_net != net)
+ if (dev_net(n->dev) != net)
continue;
lidx = idx++;
if (lidx < s_idx)
@@ -2155,7 +2155,7 @@
n = tbl->hash_buckets[bucket];
while (n) {
- if (n->dev->nd_net != net)
+ if (dev_net(n->dev) != net)
goto next;
if (state->neigh_sub_iter) {
loff_t fakep = 0;
@@ -2198,7 +2198,7 @@
while (1) {
while (n) {
- if (n->dev->nd_net != net)
+ if (dev_net(n->dev) != net)
goto next;
if (state->neigh_sub_iter) {
void *v = state->neigh_sub_iter(state, n, pos);
@@ -2482,7 +2482,7 @@
static void __neigh_notify(struct neighbour *n, int type, int flags)
{
- struct net *net = n->dev->nd_net;
+ struct net *net = dev_net(n->dev);
struct sk_buff *skb;
int err = -ENOBUFS;
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 20e63b3..a803b44 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -1874,7 +1874,7 @@
{
struct net_device *dev = ptr;
- if (dev->nd_net != &init_net)
+ if (dev_net(dev) != &init_net)
return NOTIFY_DONE;
/* It is OK that we do not hold the group lock right now,
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 2bd9c5f..09250a0 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -972,7 +972,7 @@
goto err_free;
}
- dev->nd_net = net;
+ dev_net_set(dev, net);
dev->rtnl_link_ops = ops;
if (tb[IFLA_MTU])
@@ -1198,7 +1198,7 @@
void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change)
{
- struct net *net = dev->nd_net;
+ struct net *net = dev_net(dev);
struct sk_buff *skb;
int err = -ENOBUFS;
