diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/inet_hashtables.c | 36 | ||||
| -rw-r--r-- | net/ipv6/inet6_hashtables.c | 27 |
2 files changed, 42 insertions, 21 deletions
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c index 7880af9..fa3ae81 100644 --- a/net/ipv4/inet_hashtables.c +++ b/net/ipv4/inet_hashtables.c @@ -237,12 +237,14 @@ struct sock *__inet_lookup_established(struct net *net, rcu_read_lock(); begin: sk_nulls_for_each_rcu(sk, node, &head->chain) { - if (INET_MATCH(sk, net, hash, acookie, - saddr, daddr, ports, dif)) { + if (sk->sk_hash != hash) + continue; + if (likely(INET_MATCH(sk, net, acookie, + saddr, daddr, ports, dif))) { if (unlikely(!atomic_inc_not_zero(&sk->sk_refcnt))) goto begintw; - if (unlikely(!INET_MATCH(sk, net, hash, acookie, - saddr, daddr, ports, dif))) { + if (unlikely(!INET_MATCH(sk, net, acookie, + saddr, daddr, ports, dif))) { sock_put(sk); goto begin; } @@ -260,14 +262,18 @@ begin: begintw: /* Must check for a TIME_WAIT'er before going to listener hash. */ sk_nulls_for_each_rcu(sk, node, &head->twchain) { - if (INET_TW_MATCH(sk, net, hash, acookie, - saddr, daddr, ports, dif)) { + if (sk->sk_hash != hash) + continue; + if (likely(INET_TW_MATCH(sk, net, acookie, + saddr, daddr, ports, + dif))) { if (unlikely(!atomic_inc_not_zero(&sk->sk_refcnt))) { sk = NULL; goto out; } - if (unlikely(!INET_TW_MATCH(sk, net, hash, acookie, - saddr, daddr, ports, dif))) { + if (unlikely(!INET_TW_MATCH(sk, net, acookie, + saddr, daddr, ports, + dif))) { sock_put(sk); goto begintw; } @@ -314,10 +320,12 @@ static int __inet_check_established(struct inet_timewait_death_row *death_row, /* Check TIME-WAIT sockets first. */ sk_nulls_for_each(sk2, node, &head->twchain) { - tw = inet_twsk(sk2); + if (sk2->sk_hash != hash) + continue; - if (INET_TW_MATCH(sk2, net, hash, acookie, - saddr, daddr, ports, dif)) { + if (likely(INET_TW_MATCH(sk2, net, acookie, + saddr, daddr, ports, dif))) { + tw = inet_twsk(sk2); if (twsk_unique(sk, sk2, twp)) goto unique; else @@ -328,8 +336,10 @@ static int __inet_check_established(struct inet_timewait_death_row *death_row, /* And established part... */ sk_nulls_for_each(sk2, node, &head->chain) { - if (INET_MATCH(sk2, net, hash, acookie, - saddr, daddr, ports, dif)) + if (sk2->sk_hash != hash) + continue; + if (likely(INET_MATCH(sk2, net, acookie, + saddr, daddr, ports, dif))) goto not_unique; } diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c index 73f1a00..dea17fd 100644 --- a/net/ipv6/inet6_hashtables.c +++ b/net/ipv6/inet6_hashtables.c @@ -87,11 +87,13 @@ struct sock *__inet6_lookup_established(struct net *net, rcu_read_lock(); begin: sk_nulls_for_each_rcu(sk, node, &head->chain) { - /* For IPV6 do the cheaper port and family tests first. */ - if (INET6_MATCH(sk, net, hash, saddr, daddr, ports, dif)) { + if (sk->sk_hash != hash) + continue; + if (likely(INET6_MATCH(sk, net, saddr, daddr, ports, dif))) { if (unlikely(!atomic_inc_not_zero(&sk->sk_refcnt))) goto begintw; - if (!INET6_MATCH(sk, net, hash, saddr, daddr, ports, dif)) { + if (unlikely(!INET6_MATCH(sk, net, saddr, daddr, + ports, dif))) { sock_put(sk); goto begin; } @@ -104,12 +106,16 @@ begin: begintw: /* Must check for a TIME_WAIT'er before going to listener hash. */ sk_nulls_for_each_rcu(sk, node, &head->twchain) { - if (INET6_TW_MATCH(sk, net, hash, saddr, daddr, ports, dif)) { + if (sk->sk_hash != hash) + continue; + if (likely(INET6_TW_MATCH(sk, net, saddr, daddr, + ports, dif))) { if (unlikely(!atomic_inc_not_zero(&sk->sk_refcnt))) { sk = NULL; goto out; } - if (!INET6_TW_MATCH(sk, net, hash, saddr, daddr, ports, dif)) { + if (unlikely(!INET6_TW_MATCH(sk, net, saddr, daddr, + ports, dif))) { sock_put(sk); goto begintw; } @@ -236,9 +242,12 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row, /* Check TIME-WAIT sockets first. */ sk_nulls_for_each(sk2, node, &head->twchain) { - tw = inet_twsk(sk2); + if (sk2->sk_hash != hash) + continue; - if (INET6_TW_MATCH(sk2, net, hash, saddr, daddr, ports, dif)) { + if (likely(INET6_TW_MATCH(sk2, net, saddr, daddr, + ports, dif))) { + tw = inet_twsk(sk2); if (twsk_unique(sk, sk2, twp)) goto unique; else @@ -249,7 +258,9 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row, /* And established part... */ sk_nulls_for_each(sk2, node, &head->chain) { - if (INET6_MATCH(sk2, net, hash, saddr, daddr, ports, dif)) + if (sk2->sk_hash != hash) + continue; + if (likely(INET6_MATCH(sk2, net, saddr, daddr, ports, dif))) goto not_unique; } |
