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| author | David S. Miller <davem@davemloft.net> | 2011-05-06 16:18:04 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-05-08 14:05:13 -0700 |
| commit | 6e869138101bc607e4780187210b79d531f9b2ce (patch) | |
| tree | fe85b2fb73b2658684d27f7d90188f8d735ad9c1 /net/ipv4/af_inet.c | |
| parent | 3038eeac027d8ec62e4936143498f2b37baf4cb5 (diff) | |
| download | linux-3.10-6e869138101bc607e4780187210b79d531f9b2ce.tar.gz linux-3.10-6e869138101bc607e4780187210b79d531f9b2ce.tar.bz2 linux-3.10-6e869138101bc607e4780187210b79d531f9b2ce.zip | |
ipv4: Use cork flow in inet_sk_{reselect_saddr,rebuild_header}()
These two functions must be invoked only when the socket is locked
(because socket identity modifications are made non-atomically).
Therefore we can use the cork flow for output route lookups.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/af_inet.c')
| -rw-r--r-- | net/ipv4/af_inet.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 7b91fa8bf83..851aa056854 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -1103,7 +1103,7 @@ static int inet_sk_reselect_saddr(struct sock *sk) struct inet_sock *inet = inet_sk(sk); __be32 old_saddr = inet->inet_saddr; __be32 daddr = inet->inet_daddr; - struct flowi4 fl4; + struct flowi4 *fl4; struct rtable *rt; __be32 new_saddr; struct ip_options_rcu *inet_opt; @@ -1114,7 +1114,8 @@ static int inet_sk_reselect_saddr(struct sock *sk) daddr = inet_opt->opt.faddr; /* Query new route. */ - rt = ip_route_connect(&fl4, daddr, 0, RT_CONN_FLAGS(sk), + fl4 = &inet->cork.fl.u.ip4; + rt = ip_route_connect(fl4, 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)) @@ -1122,7 +1123,7 @@ static int inet_sk_reselect_saddr(struct sock *sk) sk_setup_caps(sk, &rt->dst); - new_saddr = fl4.saddr; + new_saddr = fl4->saddr; if (new_saddr == old_saddr) return 0; @@ -1152,7 +1153,7 @@ int inet_sk_rebuild_header(struct sock *sk) struct rtable *rt = (struct rtable *)__sk_dst_check(sk, 0); __be32 daddr; struct ip_options_rcu *inet_opt; - struct flowi4 fl4; + struct flowi4 *fl4; int err; /* Route is OK, nothing to do. */ @@ -1166,7 +1167,8 @@ int inet_sk_rebuild_header(struct sock *sk) if (inet_opt && inet_opt->opt.srr) daddr = inet_opt->opt.faddr; rcu_read_unlock(); - rt = ip_route_output_ports(sock_net(sk), &fl4, sk, daddr, inet->inet_saddr, + fl4 = &inet->cork.fl.u.ip4; + rt = ip_route_output_ports(sock_net(sk), fl4, sk, daddr, inet->inet_saddr, inet->inet_dport, inet->inet_sport, sk->sk_protocol, RT_CONN_FLAGS(sk), sk->sk_bound_dev_if); |