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| author | Eric Dumazet <edumazet@google.com> | 2013-10-03 15:42:29 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-10-09 00:01:25 -0400 |
| commit | efe4208f47f907b86f528788da711e8ab9dea44d (patch) | |
| tree | 8246b487be087877ba26d166f629d8c53d553ec1 /net/l2tp/l2tp_debugfs.c | |
| parent | 05dbc7b59481ca891bbcfe6799a562d48159fbf7 (diff) | |
| download | linux-efe4208f47f907b86f528788da711e8ab9dea44d.tar.gz | |
ipv6: make lookups simpler and faster
TCP listener refactoring, part 4 : To speed up inet lookups, we moved IPv4 addresses from inet to struct sock_common Now is time to do the same for IPv6, because it permits us to have fast lookups for all kind of sockets, including upcoming SYN_RECV. Getting IPv6 addresses in TCP lookups currently requires two extra cache lines, plus a dereference (and memory stall). inet6_sk(sk) does the dereference of inet_sk(__sk)->pinet6 This patch is way bigger than its IPv4 counter part, because for IPv4, we could add aliases (inet_daddr, inet_rcv_saddr), while on IPv6, it's not doable easily. inet6_sk(sk)->daddr becomes sk->sk_v6_daddr inet6_sk(sk)->rcv_saddr becomes sk->sk_v6_rcv_saddr And timewait socket also have tw->tw_v6_daddr & tw->tw_v6_rcv_saddr at the same offset. We get rid of INET6_TW_MATCH() as INET6_MATCH() is now the generic macro. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/l2tp/l2tp_debugfs.c')
| -rw-r--r-- | net/l2tp/l2tp_debugfs.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/l2tp/l2tp_debugfs.c b/net/l2tp/l2tp_debugfs.c index 072d7202e182..2d6760a2ae34 100644 --- a/net/l2tp/l2tp_debugfs.c +++ b/net/l2tp/l2tp_debugfs.c @@ -127,9 +127,10 @@ static void l2tp_dfs_seq_tunnel_show(struct seq_file *m, void *v) #if IS_ENABLED(CONFIG_IPV6) if (tunnel->sock->sk_family == AF_INET6) { - struct ipv6_pinfo *np = inet6_sk(tunnel->sock); + const struct ipv6_pinfo *np = inet6_sk(tunnel->sock); + seq_printf(m, " from %pI6c to %pI6c\n", - &np->saddr, &np->daddr); + &np->saddr, &tunnel->sock->sk_v6_daddr); } else #endif seq_printf(m, " from %pI4 to %pI4\n", |