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kernel-fxtec-pro1x/net/ipv4/netfilter
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Harald Welte 6869c4d8e0 [NETFILTER]: reduce netfilter sk_buff enlargement 
As discussed at netconf'05, we're trying to save every bit in sk_buff.
The patch below makes sk_buff 8 bytes smaller.  I did some basic
testing on my notebook and it seems to work.

The only real in-tree user of nfcache was IPVS, who only needs a
single bit.  Unfortunately I couldn't find some other free bit in
sk_buff to stuff that bit into, so I introduced a separate field for
them.  Maybe the IPVS guys can resolve that to further save space.

Initially I wanted to shrink pkt_type to three bits (PACKET_HOST and
alike are only 6 values defined), but unfortunately the bluetooth code
overloads pkt_type :(

The conntrack-event-api (out-of-tree) uses nfcache, but Rusty just
came up with a way how to do it without any skb fields, so it's safe
to remove it.

- remove all never-implemented 'nfcache' code
- don't have ipvs code abuse 'nfcache' field. currently get's their own
  compile-conditional skb->ipvs_property field.  IPVS maintainers can
  decide to move this bit elswhere, but nfcache needs to die.
- remove skb->nfcache field to save 4 bytes
- move skb->nfctinfo into three unused bits to save further 4 bytes

Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-29 15:31:04 -07:00
..
arp_tables.c [NETFILTER]: Kill lockhelp.h 2005-06-21 14:01:30 -07:00
arpt_mangle.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
arptable_filter.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_conntrack_amanda.c [NETFILTER]: ip_conntrack_expect_related must not free expectation 2005-07-21 13:14:46 -07:00
ip_conntrack_core.c [NETFILTER]: reduce netfilter sk_buff enlargement 2005-08-29 15:31:04 -07:00
ip_conntrack_ftp.c [NETFILTER]: ip_conntrack_expect_related must not free expectation 2005-07-21 13:14:46 -07:00
ip_conntrack_irc.c [NETFILTER]: ip_conntrack_expect_related must not free expectation 2005-07-21 13:14:46 -07:00
ip_conntrack_proto_generic.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_conntrack_proto_icmp.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_conntrack_proto_sctp.c [NETFILTER]: Kill lockhelp.h 2005-06-21 14:01:30 -07:00
ip_conntrack_proto_tcp.c [NETFILTER]: Kill lockhelp.h 2005-06-21 14:01:30 -07:00
ip_conntrack_proto_udp.c [NETFILTER]: Avoid unncessary checksum validation in UDP connection tracking 2005-06-21 14:03:23 -07:00
ip_conntrack_standalone.c [NETFILTER]: convert nfmark and conntrack mark to 32bit 2005-08-29 15:29:31 -07:00
ip_conntrack_tftp.c [NETFILTER]: ip_conntrack_expect_related must not free expectation 2005-07-21 13:14:46 -07:00
ip_nat_amanda.c [NETFILTER]: ip_conntrack_expect_related must not free expectation 2005-07-21 13:14:46 -07:00
ip_nat_core.c [NETFILTER]: reduce netfilter sk_buff enlargement 2005-08-29 15:31:04 -07:00
ip_nat_ftp.c [NETFILTER]: ip_conntrack_expect_related must not free expectation 2005-07-21 13:14:46 -07:00
ip_nat_helper.c [NETFILTER]: Kill nf_debug 2005-06-21 14:01:57 -07:00
ip_nat_irc.c [NETFILTER]: ip_conntrack_expect_related must not free expectation 2005-07-21 13:14:46 -07:00
ip_nat_proto_icmp.c [NETFILTER]: Use correct byteorder in ICMP NAT 2005-07-22 12:51:38 -07:00
ip_nat_proto_tcp.c [NETFILTER]: Fix potential memory corruption in NAT code (aka memory NAT) 2005-07-22 12:50:29 -07:00
ip_nat_proto_udp.c [NETFILTER]: Fix potential memory corruption in NAT code (aka memory NAT) 2005-07-22 12:50:29 -07:00
ip_nat_proto_unknown.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_nat_rule.c [NETFILTER]: Kill lockhelp.h 2005-06-21 14:01:30 -07:00
ip_nat_snmp_basic.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_nat_standalone.c [NETFILTER]: reduce netfilter sk_buff enlargement 2005-08-29 15:31:04 -07:00
ip_nat_tftp.c [NETFILTER]: ip_conntrack_expect_related must not free expectation 2005-07-21 13:14:46 -07:00
ip_queue.c [NETFILTER]: reduce netfilter sk_buff enlargement 2005-08-29 15:31:04 -07:00
ip_tables.c [NETFILTER]: reduce netfilter sk_buff enlargement 2005-08-29 15:31:04 -07:00
ipt_addrtype.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_ah.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_CLASSIFY.c [NETFILTER]: reduce netfilter sk_buff enlargement 2005-08-29 15:31:04 -07:00
ipt_CLUSTERIP.c [NETFILTER]: convert nfmark and conntrack mark to 32bit 2005-08-29 15:29:31 -07:00
ipt_comment.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_CONNMARK.c [NETFILTER]: reduce netfilter sk_buff enlargement 2005-08-29 15:31:04 -07:00
ipt_connmark.c [NETFILTER]: convert nfmark and conntrack mark to 32bit 2005-08-29 15:29:31 -07:00
ipt_conntrack.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_DSCP.c [NETFILTER]: reduce netfilter sk_buff enlargement 2005-08-29 15:31:04 -07:00
ipt_dscp.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_ECN.c [NETFILTER]: reduce netfilter sk_buff enlargement 2005-08-29 15:31:04 -07:00
ipt_ecn.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_esp.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_hashlimit.c [NETFILTER]: Kill lockhelp.h 2005-06-21 14:01:30 -07:00
ipt_helper.c [NETFILTER]: Kill lockhelp.h 2005-06-21 14:01:30 -07:00
ipt_iprange.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_length.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_limit.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_LOG.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_mac.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_mark.c [NETFILTER]: convert nfmark and conntrack mark to 32bit 2005-08-29 15:29:31 -07:00
ipt_MARK.c [NETFILTER]: reduce netfilter sk_buff enlargement 2005-08-29 15:31:04 -07:00
ipt_MASQUERADE.c [NETFILTER]: Kill lockhelp.h 2005-06-21 14:01:30 -07:00
ipt_multiport.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_NETMAP.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_NOTRACK.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_owner.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_physdev.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_pkttype.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_realm.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_recent.c [NETFILTER]: ipt_recent: last_pkts is an array of "unsigned long" not "u_int32_t" 2005-06-15 20:51:14 -07:00
ipt_REDIRECT.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_REJECT.c [NETFILTER]: reduce netfilter sk_buff enlargement 2005-08-29 15:31:04 -07:00
ipt_SAME.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_sctp.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_state.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_TCPMSS.c [NETFILTER]: reduce netfilter sk_buff enlargement 2005-08-29 15:31:04 -07:00
ipt_tcpmss.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_TOS.c [NETFILTER]: reduce netfilter sk_buff enlargement 2005-08-29 15:31:04 -07:00
ipt_tos.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_ttl.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipt_ULOG.c [NETFILTER]: Kill lockhelp.h 2005-06-21 14:01:30 -07:00
iptable_filter.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
iptable_mangle.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
iptable_raw.c [NETFILTER]: Missing owner-field initialization in iptable_raw 2005-05-03 14:23:13 -07:00
Kconfig Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00