AcoSail/kernel_optimize_test
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8feaf0c0a5
kernel_optimize_test/net/ipv4
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Arnaldo Carvalho de Melo 8feaf0c0a5 [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>
2005-08-29 15:42:13 -07:00
..
ipvs [TCP]: Move the tcp sock states to net/tcp_states.h 2005-08-29 15:41:54 -07:00
netfilter [NETFILTER]: fix list traversal order in ctnetlink 2005-08-29 15:40:25 -07:00
af_inet.c [INET]: Introduce inet_sk_rebuild_header 2005-08-29 15:37:55 -07:00
ah4.c [IPSEC]: Add xfrm_init_state 2005-06-20 13:18:08 -07:00
arp.c [NET]: Kill skb->real_dev 2005-08-29 15:32:25 -07:00
datagram.c [TCP]: Move the tcp sock states to net/tcp_states.h 2005-08-29 15:41:54 -07:00
devinet.c [PATCH] create a kstrdup library function 2005-06-23 09:45:18 -07:00
esp4.c [IPSEC]: Add xfrm_init_state 2005-06-20 13:18:08 -07:00
fib_frontend.c [NETLINK]: Add properly module refcounting for kernel netlink sockets. 2005-08-29 15:35:08 -07:00
fib_hash.c [NETLINK]: Correctly set NLM_F_MULTI without checking the pid 2005-06-18 22:54:12 -07:00
fib_lookup.h [NETLINK]: Correctly set NLM_F_MULTI without checking the pid 2005-06-18 22:54:12 -07:00
fib_rules.c [NETLINK]: Correctly set NLM_F_MULTI without checking the pid 2005-06-18 22:54:12 -07:00
fib_semantics.c [IPV4]: Fix memory leak during fib_info hash expansion. 2005-08-05 04:12:48 -07:00
fib_trie.c [FIB_TRIE]: Don't ignore negative results from fib_semantic_match 2005-08-23 22:06:09 -07:00
icmp.c [IPV4]: Fix DST leak in icmp_push_reply() 2005-08-18 14:05:44 -07:00
igmp.c [IPV4]: fix IPv4 leave-group group matching 2005-07-08 17:48:38 -07:00
inet_hashtables.c [INET]: Generalise tcp_v4_lookup_listener 2005-08-29 15:42:08 -07:00
inetpeer.c [IPV4]: possible cleanups 2005-08-29 15:33:20 -07:00
ip_forward.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_fragment.c [IPV4]: Debug cleanup 2005-08-08 14:26:52 -07:00
ip_gre.c [NET]: fix oops after tunnel module unload 2005-07-30 17:46:44 -07:00
ip_input.c [IPV4/6]: Check if packet was actually delivered to a raw socket to decide whether to send an ICMP unreachable 2005-08-29 15:37:22 -07:00
ip_options.c [IPV4]: possible cleanups 2005-08-29 15:33:20 -07:00
ip_output.c [INET]: Introduce inet_sk_rebuild_header 2005-08-29 15:37:55 -07:00
ip_sockglue.c [IPSEC]: Restrict socket policy loading to CAP_NET_ADMIN. 2005-08-06 06:33:15 -07:00
ipcomp.c [IPCOMP]: Fix false smp_processor_id warning 2005-08-18 14:36:59 -07:00
ipconfig.c [NET]: Kill skb->real_dev 2005-08-29 15:32:25 -07:00
ipip.c [NET]: fix oops after tunnel module unload 2005-07-30 17:46:44 -07:00
ipmr.c [NET]: Spelling mistakes threshoulds -> thresholds 2005-07-30 17:41:59 -07:00
Kconfig [IPV4]: Fix Kconfig syntax error 2005-07-27 13:00:04 -07:00
Makefile [INET]: Move the TCP hashtable functions/structs to inet_hashtables.[ch] 2005-08-29 15:38:39 -07:00
multipath_drr.c [IPV4]: possible cleanups 2005-08-29 15:33:20 -07:00
multipath_random.c [IPV4]: Multipath modules need a license to prevent kernel tainting. 2005-06-13 14:29:06 -07:00
multipath_rr.c [IPV4]: Multipath modules need a license to prevent kernel tainting. 2005-06-13 14:29:06 -07:00
multipath_wrandom.c [IPV4]: Multipath modules need a license to prevent kernel tainting. 2005-06-13 14:29:06 -07:00
multipath.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
netfilter.c [NETFILTER]: Move reroute-after-queue code up to the nf_queue layer. 2005-08-29 15:36:19 -07:00
proc.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
protocol.c [TCP]: Move the tcp sock states to net/tcp_states.h 2005-08-29 15:41:54 -07:00
raw.c [TCP]: Move the tcp sock states to net/tcp_states.h 2005-08-29 15:41:54 -07:00
route.c [IPV4]: possible cleanups 2005-08-29 15:33:20 -07:00
syncookies.c [NET] Rename open_request to request_sock 2005-06-18 22:47:21 -07:00
sysctl_net_ipv4.c [TCP]: Add pluggable congestion control algorithm infrastructure. 2005-06-23 12:19:55 -07:00
tcp_bic.c [TCP]: Add TCP BIC congestion control module. 2005-06-23 12:23:25 -07:00
tcp_cong.c [TCP]: Allow choosing TCP congestion control via sockopt. 2005-06-23 20:37:36 -07:00
tcp_diag.c [INET]: Generalise tcp_tw_bucket, aka TIME_WAIT sockets 2005-08-29 15:42:13 -07:00
tcp_highspeed.c [TCP]: Add High Speed TCP congestion control module. 2005-06-23 12:24:58 -07:00
tcp_htcp.c [TCP]: Add H-TCP congestion control module. 2005-06-23 12:28:11 -07:00
tcp_hybla.c [TCP]: Add TCP Hybla congestion control module. 2005-06-23 12:26:34 -07:00
tcp_input.c [NET]: Kill skb->list 2005-08-29 15:31:14 -07:00
tcp_ipv4.c [INET]: Generalise tcp_tw_bucket, aka TIME_WAIT sockets 2005-08-29 15:42:13 -07:00
tcp_minisocks.c [INET]: Generalise tcp_tw_bucket, aka TIME_WAIT sockets 2005-08-29 15:42:13 -07:00
tcp_output.c [NET]: Kill skb->list 2005-08-29 15:31:14 -07:00
tcp_scalable.c [TCP]: Add Scalable TCP congestion control module. 2005-06-23 12:29:07 -07:00
tcp_timer.c [NET]: Transform skb_queue_len() binary tests into skb_queue_empty() 2005-07-08 14:57:23 -07:00
tcp_vegas.c [TCP]: Add TCP Vegas congestion control module. 2005-06-23 12:27:19 -07:00
tcp_westwood.c [TCP]: Add TCP Westwood congestion control module. 2005-06-23 12:24:09 -07:00
tcp.c [INET]: Generalise tcp_tw_bucket, aka TIME_WAIT sockets 2005-08-29 15:42:13 -07:00
udp.c [TCP]: Move the tcp sock states to net/tcp_states.h 2005-08-29 15:41:54 -07:00
xfrm4_input.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xfrm4_output.c [IPSEC]: Add XFRM_STATE_NOPMTUDISC flag 2005-06-20 13:21:43 -07:00
xfrm4_policy.c [IPSEC]: Store idev entries 2005-05-03 16:27:10 -07:00
xfrm4_state.c [IPV4]: possible cleanups 2005-08-29 15:33:20 -07:00
xfrm4_tunnel.c [NET]: Make ipip/ip6_tunnel independant of XFRM 2005-07-19 14:03:34 -07:00