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[NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS.

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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>
This commit is contained in:
YOSHIFUJI Hideaki
2008-03-26 02:26:21 +09:00
parent c346dca108
commit 3b1e0a655f
69 changed files with 253 additions and 215 deletions
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10
net/core/sock.c
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@@ -372,7 +372,7 @@ static int sock_bindtodevice(struct sock *sk, char __user *optval, int optlen)
{
int ret = -ENOPROTOOPT;
#ifdef CONFIG_NETDEVICES
struct net *net = sk->sk_net;
struct net *net = sock_net(sk);
char devname[IFNAMSIZ];
int index;
@@ -958,7 +958,7 @@ struct sock *sk_alloc(struct net *net, int family, gfp_t priority,
*/
sk->sk_prot = sk->sk_prot_creator = prot;
sock_lock_init(sk);
sk->sk_net = get_net(net);
sock_net_set(sk, get_net(net));
}
return sk;
@@ -983,7 +983,7 @@ void sk_free(struct sock *sk)
printk(KERN_DEBUG "%s: optmem leakage (%d bytes) detected.\n",
__func__, atomic_read(&sk->sk_omem_alloc));
put_net(sk->sk_net);
put_net(sock_net(sk));
sk_prot_free(sk->sk_prot_creator, sk);
}
@@ -1001,7 +1001,7 @@ void sk_release_kernel(struct sock *sk)
sock_hold(sk);
sock_release(sk->sk_socket);
sk->sk_net = get_net(&init_net);
sock_net_set(sk, get_net(&init_net));
sock_put(sk);
}
EXPORT_SYMBOL(sk_release_kernel);
@@ -1017,7 +1017,7 @@ struct sock *sk_clone(const struct sock *sk, const gfp_t priority)
sock_copy(newsk, sk);
/* SANITY */
get_net(newsk->sk_net);
get_net(sock_net(newsk));
sk_node_init(&newsk->sk_node);
sock_lock_init(newsk);
bh_lock_sock(newsk);