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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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30
net/netlink/af_netlink.c
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@@ -228,7 +228,7 @@ static inline struct sock *netlink_lookup(struct net *net, int protocol,
read_lock(&nl_table_lock);
head = nl_pid_hashfn(hash, pid);
sk_for_each(sk, node, head) {
if ((sk->sk_net == net) && (nlk_sk(sk)->pid == pid)) {
if (sock_net(sk) == net && (nlk_sk(sk)->pid == pid)) {
sock_hold(sk);
goto found;
}
@@ -348,7 +348,7 @@ static int netlink_insert(struct sock *sk, struct net *net, u32 pid)
head = nl_pid_hashfn(hash, pid);
len = 0;
sk_for_each(osk, node, head) {
if ((osk->sk_net == net) && (nlk_sk(osk)->pid == pid))
if (sock_net(osk) == net && (nlk_sk(osk)->pid == pid))
break;
len++;
}
@@ -486,7 +486,7 @@ static int netlink_release(struct socket *sock)
if (nlk->pid && !nlk->subscriptions) {
struct netlink_notify n = {
.net = sk->sk_net,
.net = sock_net(sk),
.protocol = sk->sk_protocol,
.pid = nlk->pid,
};
@@ -518,7 +518,7 @@ static int netlink_release(struct socket *sock)
static int netlink_autobind(struct socket *sock)
{
struct sock *sk = sock->sk;
struct net *net = sk->sk_net;
struct net *net = sock_net(sk);
struct nl_pid_hash *hash = &nl_table[sk->sk_protocol].hash;
struct hlist_head *head;
struct sock *osk;
@@ -532,7 +532,7 @@ retry:
netlink_table_grab();
head = nl_pid_hashfn(hash, pid);
sk_for_each(osk, node, head) {
if ((osk->sk_net != net))
if (sock_net(osk) != net)
continue;
if (nlk_sk(osk)->pid == pid) {
/* Bind collision, search negative pid values. */
@@ -611,7 +611,7 @@ static int netlink_bind(struct socket *sock, struct sockaddr *addr,
int addr_len)
{
struct sock *sk = sock->sk;
struct net *net = sk->sk_net;
struct net *net = sock_net(sk);
struct netlink_sock *nlk = nlk_sk(sk);
struct sockaddr_nl *nladdr = (struct sockaddr_nl *)addr;
int err;
@@ -720,7 +720,7 @@ static struct sock *netlink_getsockbypid(struct sock *ssk, u32 pid)
struct sock *sock;
struct netlink_sock *nlk;
sock = netlink_lookup(ssk->sk_net, ssk->sk_protocol, pid);
sock = netlink_lookup(sock_net(ssk), ssk->sk_protocol, pid);
if (!sock)
return ERR_PTR(-ECONNREFUSED);
@@ -962,7 +962,7 @@ static inline int do_one_broadcast(struct sock *sk,
!test_bit(p->group - 1, nlk->groups))
goto out;
if ((sk->sk_net != p->net))
if (sock_net(sk) != p->net)
goto out;
if (p->failure) {
@@ -1006,7 +1006,7 @@ out:
int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, u32 pid,
u32 group, gfp_t allocation)
{
struct net *net = ssk->sk_net;
struct net *net = sock_net(ssk);
struct netlink_broadcast_data info;
struct hlist_node *node;
struct sock *sk;
@@ -1064,7 +1064,7 @@ static inline int do_one_set_err(struct sock *sk,
if (sk == p->exclude_sk)
goto out;
if (sk->sk_net != p->exclude_sk->sk_net)
if (sock_net(sk) != sock_net(p->exclude_sk))
goto out;
if (nlk->pid == p->pid || p->group - 1 >= nlk->ngroups ||
@@ -1601,7 +1601,7 @@ int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
atomic_inc(&skb->users);
cb->skb = skb;
sk = netlink_lookup(ssk->sk_net, ssk->sk_protocol, NETLINK_CB(skb).pid);
sk = netlink_lookup(sock_net(ssk), ssk->sk_protocol, NETLINK_CB(skb).pid);
if (sk == NULL) {
netlink_destroy_callback(cb);
return -ECONNREFUSED;
@@ -1643,7 +1643,7 @@ void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err)
if (!skb) {
struct sock *sk;
sk = netlink_lookup(in_skb->sk->sk_net,
sk = netlink_lookup(sock_net(in_skb->sk),
in_skb->sk->sk_protocol,
NETLINK_CB(in_skb).pid);
if (sk) {
@@ -1758,7 +1758,7 @@ static struct sock *netlink_seq_socket_idx(struct seq_file *seq, loff_t pos)
for (j = 0; j <= hash->mask; j++) {
sk_for_each(s, node, &hash->table[j]) {
if (iter->p.net != s->sk_net)
if (sock_net(s) != iter->p.net)
continue;
if (off == pos) {
iter->link = i;
@@ -1794,7 +1794,7 @@ static void *netlink_seq_next(struct seq_file *seq, void *v, loff_t *pos)
s = v;
do {
s = sk_next(s);
} while (s && (iter->p.net != s->sk_net));
} while (s && (sock_net(s) != iter->p.net));
if (s)
return s;
@@ -1806,7 +1806,7 @@ static void *netlink_seq_next(struct seq_file *seq, void *v, loff_t *pos)
for (; j <= hash->mask; j++) {
s = sk_head(&hash->table[j]);
while (s && (iter->p.net != s->sk_net))
while (s && sock_net(s) != iter->p.net)
s = sk_next(s);
if (s) {
iter->link = i;