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| author | Eric Dumazet <edumazet@google.com> | 2013-10-04 00:42:29 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-10-09 06:01:25 +0200 |
| commit | efe4208f47f907b86f528788da711e8ab9dea44d (patch) | |
| tree | 8246b487be087877ba26d166f629d8c53d553ec1 /net/dccp/ipv6.h | |
| parent | tcp/dccp: remove twchain (diff) | |
| download | linux-efe4208f47f907b86f528788da711e8ab9dea44d.tar.xz linux-efe4208f47f907b86f528788da711e8ab9dea44d.zip | |
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/dccp/ipv6.h')
| -rw-r--r-- | net/dccp/ipv6.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/net/dccp/ipv6.h b/net/dccp/ipv6.h index 6eef81fdbe56..6604fc3fe953 100644 --- a/net/dccp/ipv6.h +++ b/net/dccp/ipv6.h @@ -30,7 +30,6 @@ struct dccp6_request_sock { struct dccp6_timewait_sock { struct inet_timewait_sock inet; - struct inet6_timewait_sock tw6; }; #endif /* _DCCP_IPV6_H */ |