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ipv4: Make output route lookup return rtable directly.

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Instead of on the stack.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-03-02 14:31:35 -08:00
parent 452edd598f
commit b23dd4fe42
36 changed files with 267 additions and 224 deletions
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30
net/ipv4/af_inet.c
View file

@ -1101,23 +1101,20 @@ int sysctl_ip_dynaddr __read_mostly;
static int inet_sk_reselect_saddr(struct sock *sk)
{
struct inet_sock *inet = inet_sk(sk);
int err;
struct rtable *rt;
__be32 old_saddr = inet->inet_saddr;
__be32 new_saddr;
__be32 daddr = inet->inet_daddr;
struct rtable *rt;
__be32 new_saddr;
if (inet->opt && inet->opt->srr)
daddr = inet->opt->faddr;
/* Query new route. */
err = ip_route_connect(&rt, daddr, 0,
RT_CONN_FLAGS(sk),
sk->sk_bound_dev_if,
sk->sk_protocol,
inet->inet_sport, inet->inet_dport, sk, false);
if (err)
return err;
rt = ip_route_connect(daddr, 0, RT_CONN_FLAGS(sk),
sk->sk_bound_dev_if, sk->sk_protocol,
inet->inet_sport, inet->inet_dport, sk, false);
if (IS_ERR(rt))
return PTR_ERR(rt);
sk_setup_caps(sk, &rt->dst);
@ -1160,7 +1157,7 @@ int inet_sk_rebuild_header(struct sock *sk)
daddr = inet->inet_daddr;
if (inet->opt && inet->opt->srr)
daddr = inet->opt->faddr;
{
{
struct flowi fl = {
.oif = sk->sk_bound_dev_if,
.mark = sk->sk_mark,
@ -1174,11 +1171,14 @@ int inet_sk_rebuild_header(struct sock *sk)
};
security_sk_classify_flow(sk, &fl);
err = ip_route_output_flow(sock_net(sk), &rt, &fl, sk);
}
if (!err)
rt = ip_route_output_flow(sock_net(sk), &fl, sk);
}
if (!IS_ERR(rt)) {
err = 0;
sk_setup_caps(sk, &rt->dst);
else {
} else {
err = PTR_ERR(rt);
/* Routing failed... */
sk->sk_route_caps = 0;
/*