[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/decnet/af_decnet.c b/net/decnet/af_decnet.c
index 3554fb3..fc2efe8 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -1094,7 +1094,7 @@
cb = DN_SKB_CB(skb);
sk->sk_ack_backlog--;
- newsk = dn_alloc_sock(sk->sk_net, newsock, sk->sk_allocation);
+ newsk = dn_alloc_sock(sock_net(sk), newsock, sk->sk_allocation);
if (newsk == NULL) {
release_sock(sk);
kfree_skb(skb);
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index 1bbfce5..2f0ac3c 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -625,7 +625,7 @@
static int dn_nl_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
- struct net *net = skb->sk->sk_net;
+ struct net *net = sock_net(skb->sk);
struct nlattr *tb[IFA_MAX+1];
struct dn_dev *dn_db;
struct ifaddrmsg *ifm;
@@ -663,7 +663,7 @@
static int dn_nl_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
- struct net *net = skb->sk->sk_net;
+ struct net *net = sock_net(skb->sk);
struct nlattr *tb[IFA_MAX+1];
struct net_device *dev;
struct dn_dev *dn_db;
@@ -779,7 +779,7 @@
static int dn_nl_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
{
- struct net *net = skb->sk->sk_net;
+ struct net *net = sock_net(skb->sk);
int idx, dn_idx = 0, skip_ndevs, skip_naddr;
struct net_device *dev;
struct dn_dev *dn_db;
diff --git a/net/decnet/dn_fib.c b/net/decnet/dn_fib.c
index 4aa9a42..27ea2e9 100644
--- a/net/decnet/dn_fib.c
+++ b/net/decnet/dn_fib.c
@@ -504,7 +504,7 @@
static int dn_fib_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
- struct net *net = skb->sk->sk_net;
+ struct net *net = sock_net(skb->sk);
struct dn_fib_table *tb;
struct rtattr **rta = arg;
struct rtmsg *r = NLMSG_DATA(nlh);
@@ -524,7 +524,7 @@
static int dn_fib_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
- struct net *net = skb->sk->sk_net;
+ struct net *net = sock_net(skb->sk);
struct dn_fib_table *tb;
struct rtattr **rta = arg;
struct rtmsg *r = NLMSG_DATA(nlh);
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 0a46b6c..2f665a5 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -1512,7 +1512,7 @@
*/
static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void *arg)
{
- struct net *net = in_skb->sk->sk_net;
+ struct net *net = sock_net(in_skb->sk);
struct rtattr **rta = arg;
struct rtmsg *rtm = NLMSG_DATA(nlh);
struct dn_route *rt = NULL;
@@ -1601,7 +1601,7 @@
*/
int dn_cache_dump(struct sk_buff *skb, struct netlink_callback *cb)
{
- struct net *net = skb->sk->sk_net;
+ struct net *net = sock_net(skb->sk);
struct dn_route *rt;
int h, s_h;
int idx, s_idx;
diff --git a/net/decnet/dn_table.c b/net/decnet/dn_table.c
index e09d915..3a2830a 100644
--- a/net/decnet/dn_table.c
+++ b/net/decnet/dn_table.c
@@ -463,7 +463,7 @@
int dn_fib_dump(struct sk_buff *skb, struct netlink_callback *cb)
{
- struct net *net = skb->sk->sk_net;
+ struct net *net = sock_net(skb->sk);
unsigned int h, s_h;
unsigned int e = 0, s_e;
struct dn_fib_table *tb;
