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| author | Arnaldo Carvalho de Melo <acme@ghostprotocols.net> | 2005-08-09 20:09:30 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2005-08-29 15:42:13 -0700 |
| commit | 8feaf0c0a5488b3d898a9c207eb6678f44ba3f26 (patch) | |
| tree | ddd004afe2f7c8295f6fdb94d34f78a42b5961cb /net/ipv6/addrconf.c | |
| parent | 33b62231908c58ae04185e4f1063d1e35a7c8576 (diff) | |
| download | linux-riscv-8feaf0c0a5488b3d898a9c207eb6678f44ba3f26.tar.gz linux-riscv-8feaf0c0a5488b3d898a9c207eb6678f44ba3f26.tar.bz2 linux-riscv-8feaf0c0a5488b3d898a9c207eb6678f44ba3f26.zip | |
[INET]: Generalise tcp_tw_bucket, aka TIME_WAIT sockets
This paves the way to generalise the rest of the sock ID lookup
routines and saves some bytes in TCPv4 TIME_WAIT sockets on distro
kernels (where IPv6 is always built as a module):
[root@qemu ~]# grep tw_sock /proc/slabinfo
tw_sock_TCPv6 0 0 128 31 1
tw_sock_TCP 0 0 96 41 1
[root@qemu ~]#
Now if a protocol wants to use the TIME_WAIT generic infrastructure it
only has to set the sk_prot->twsk_obj_size field with the size of its
inet_timewait_sock derived sock and proto_register will create
sk_prot->twsk_slab, for now its only for INET sockets, but we can
introduce timewait_sock later if some non INET transport protocolo
wants to use this stuff.
Next changesets will take advantage of this new infrastructure to
generalise even more TCP code.
[acme@toy net-2.6.14]$ grep built-in /tmp/before.size /tmp/after.size
/tmp/before.size: 188646 11764 5068 205478 322a6 net/ipv4/built-in.o
/tmp/after.size: 188144 11764 5068 204976 320b0 net/ipv4/built-in.o
[acme@toy net-2.6.14]$
Tested with both IPv4 & IPv6 (::1 (localhost) & ::ffff:172.20.0.1
(qemu host)).
Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/addrconf.c')
| -rw-r--r-- | net/ipv6/addrconf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 77004b9456c0..4582d9cf4bbe 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -1041,7 +1041,7 @@ int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2) const struct in6_addr *sk_rcv_saddr6 = &inet6_sk(sk)->rcv_saddr; const struct in6_addr *sk2_rcv_saddr6 = tcp_v6_rcv_saddr(sk2); u32 sk_rcv_saddr = inet_sk(sk)->rcv_saddr; - u32 sk2_rcv_saddr = tcp_v4_rcv_saddr(sk2); + u32 sk2_rcv_saddr = inet_rcv_saddr(sk2); int sk_ipv6only = ipv6_only_sock(sk); int sk2_ipv6only = tcp_v6_ipv6only(sk2); int addr_type = ipv6_addr_type(sk_rcv_saddr6); |