linux_dsm_epyc7002/net/l2tp
Eric Dumazet efe4208f47 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>
2013-10-09 00:01:25 -04:00
..
Kconfig net/l2tp: remove depends on CONFIG_EXPERIMENTAL 2013-01-11 11:40:01 -08:00
l2tp_core.c ipv6: make lookups simpler and faster 2013-10-09 00:01:25 -04:00
l2tp_core.h l2tp: fix kernel panic when using IPv4-mapped IPv6 addresses 2013-10-02 17:09:22 -04:00
l2tp_debugfs.c ipv6: make lookups simpler and faster 2013-10-09 00:01:25 -04:00
l2tp_eth.c l2tp: fix oops in l2tp_eth_create() error path 2012-11-02 21:56:35 -04:00
l2tp_ip6.c ipv6: make lookups simpler and faster 2013-10-09 00:01:25 -04:00
l2tp_ip.c l2tp: close sessions in ip socket destroy callback 2013-03-20 12:10:38 -04:00
l2tp_netlink.c ipv6: make lookups simpler and faster 2013-10-09 00:01:25 -04:00
l2tp_ppp.c ipv6: make lookups simpler and faster 2013-10-09 00:01:25 -04:00
Makefile l2tp: introduce L2TPv3 IP encapsulation support for IPv6 2012-05-01 09:30:55 -04:00