diff options
| author | Kuniyuki Iwashima <kuniyu@amazon.co.jp> | 2020-03-10 11:05:24 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-03-12 22:08:09 +0300 |
| commit | 16f6c2518f9e0347eb54d368473ebd0904ac4298 (patch) | |
| tree | e4319228459e2b53f11fa0a0e2a80dd2dea093cc /net/ipv4 | |
| parent | af91fd7e17f12119763b95ccf526bce4b0693144 (diff) | |
| download | linux-16f6c2518f9e0347eb54d368473ebd0904ac4298.tar.xz | |
tcp: Remove unnecessary conditions in inet_csk_bind_conflict().
When we get an ephemeral port, the relax is false, so the SO_REUSEADDR
conditions may be evaluated twice. We do not need to check the conditions
again.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/inet_connection_sock.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index a4db79b1b643..2e9549f49a82 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -146,17 +146,15 @@ static int inet_csk_bind_conflict(const struct sock *sk, (!sk->sk_bound_dev_if || !sk2->sk_bound_dev_if || sk->sk_bound_dev_if == sk2->sk_bound_dev_if)) { - if ((!reuse || !sk2->sk_reuse || - sk2->sk_state == TCP_LISTEN) && - (!reuseport || !sk2->sk_reuseport || - rcu_access_pointer(sk->sk_reuseport_cb) || - (sk2->sk_state != TCP_TIME_WAIT && - !uid_eq(uid, sock_i_uid(sk2))))) { - if (inet_rcv_saddr_equal(sk, sk2, true)) - break; - } - if (!relax && reuse && sk2->sk_reuse && + if (reuse && sk2->sk_reuse && sk2->sk_state != TCP_LISTEN) { + if (!relax && + inet_rcv_saddr_equal(sk, sk2, true)) + break; + } else if (!reuseport || !sk2->sk_reuseport || + rcu_access_pointer(sk->sk_reuseport_cb) || + (sk2->sk_state != TCP_TIME_WAIT && + !uid_eq(uid, sock_i_uid(sk2)))) { if (inet_rcv_saddr_equal(sk, sk2, true)) break; } |