[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/ipv6/mcast.c b/net/ipv6/mcast.c
index 0357de8..20a3d8e 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -181,7 +181,7 @@
struct net_device *dev = NULL;
struct ipv6_mc_socklist *mc_lst;
struct ipv6_pinfo *np = inet6_sk(sk);
- struct net *net = sk->sk_net;
+ struct net *net = sock_net(sk);
int err;
if (!ipv6_addr_is_multicast(addr))
@@ -255,7 +255,7 @@
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct ipv6_mc_socklist *mc_lst, **lnk;
- struct net *net = sk->sk_net;
+ struct net *net = sock_net(sk);
write_lock_bh(&ipv6_sk_mc_lock);
for (lnk = &np->ipv6_mc_list; (mc_lst = *lnk) !=NULL ; lnk = &mc_lst->next) {
@@ -327,7 +327,7 @@
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct ipv6_mc_socklist *mc_lst;
- struct net *net = sk->sk_net;
+ struct net *net = sock_net(sk);
write_lock_bh(&ipv6_sk_mc_lock);
while ((mc_lst = np->ipv6_mc_list) != NULL) {
@@ -365,7 +365,7 @@
struct inet6_dev *idev;
struct ipv6_pinfo *inet6 = inet6_sk(sk);
struct ip6_sf_socklist *psl;
- struct net *net = sk->sk_net;
+ struct net *net = sock_net(sk);
int i, j, rv;
int leavegroup = 0;
int pmclocked = 0;
@@ -505,7 +505,7 @@
struct inet6_dev *idev;
struct ipv6_pinfo *inet6 = inet6_sk(sk);
struct ip6_sf_socklist *newpsl, *psl;
- struct net *net = sk->sk_net;
+ struct net *net = sock_net(sk);
int leavegroup = 0;
int i, err;
@@ -598,7 +598,7 @@
struct net_device *dev;
struct ipv6_pinfo *inet6 = inet6_sk(sk);
struct ip6_sf_socklist *psl;
- struct net *net = sk->sk_net;
+ struct net *net = sock_net(sk);
group = &((struct sockaddr_in6 *)&gsf->gf_group)->sin6_addr;