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Alexander Duyck 6648bd7e0e ipv4: Add sysctl knob to control early socket demux 
This change is meant to add a control for disabling early socket demux.
The main motivation behind this patch is to provide an option to disable
the feature as it adds an additional cost to routing that reduces overall
throughput by up to 5%.  For example one of my systems went from 12.1Mpps
to 11.6 after the early socket demux was added.  It looks like the reason
for the regression is that we are now having to perform two lookups, first
the one for an established socket, and then the one for the routing table.

By adding this patch and toggling the value for ip_early_demux to 0 I am
able to get back to the 12.1Mpps I was previously seeing.

[ Move local variables in ip_rcv_finish() down into the basic
  block in which they are actually used.  -DaveM ]

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2012-06-22 17:11:13 -07:00
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9p 9p: Reduce object size with CONFIG_NET_9P_DEBUG 2012-01-05 10:51:44 -06:00
bluetooth Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2012-06-13 15:35:35 -04:00
caif caif-hsi: robust frame aggregation for HSI 2012-04-13 11:37:36 -04:00
irda
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iucv af_iucv: add shutdown for HS transport 2012-03-07 22:52:24 -08:00
netfilter netfilter: fix missing symbols if CONFIG_NETFILTER_NETLINK_QUEUE_CT unset 2012-06-18 21:09:17 -07:00
netns Merge branch 'master' of git://1984.lsi.us.es/net-next 2012-06-11 12:56:14 -07:00
nfc NFC: Introduce target mode rx data callback 2012-06-04 21:34:31 +02:00
phonet
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sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-05-16 22:17:37 -04:00
tc_act
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act_api.h
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addrconf.h ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
af_ieee802154.h
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af_rxrpc.h
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af_unix.h af_unix: speedup /proc/net/unix 2012-06-08 14:27:23 -07:00
ah.h
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arp.h ipv4: Eliminate spurious argument to __ipv4_neigh_lookup 2012-02-15 17:48:35 -05:00
atmclip.h atm: clip: Use device neigh support on top of "arp_tbl". 2011-11-30 18:51:03 -05:00
ax25.h net ax25: Fix the build when sysctl support is disabled. 2012-04-23 22:14:47 -04:00
ax88796.h
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cfg80211-wext.h
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cfg80211.h cfg80211: clarify set_channel APIs 2012-06-06 15:18:17 -04:00
checksum.h
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cipso_ipv4.h cipso: handle CIPSO options correctly when NetLabel is disabled 2012-06-01 14:18:29 -04:00
cls_cgroup.h
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codel.h fq_codel: should use qdisc backlog as threshold 2012-05-16 15:30:26 -04:00
compat.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
datalink.h
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dcbevent.h dcb: Add stub routines for !CONFIG_DCB 2011-10-06 15:49:51 -04:00
dcbnl.h net/dcb: Add an optional max rate attribute 2012-04-05 05:08:04 -04:00
dn.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
dn_dev.h
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dn_fib.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
dn_neigh.h
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dn_nsp.h
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dn_route.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
dsa.h dsa: Include linux/if_ether.h to fix build error 2011-12-01 11:41:06 -05:00
dsfield.h
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dst.h include/net/dst.h: neaten asterisk placement 2012-06-16 15:20:35 -07:00
dst_ops.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
esp.h
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ethoc.h
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fib_rules.h
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flow.h ipv4: reset flowi parameters on route connect 2012-02-04 19:29:48 -05:00
flow_keys.h flow_dissector: use a 64bit load/store 2011-11-29 13:17:03 -05:00
garp.h
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gen_stats.h
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genetlink.h net: Deinline __nlmsg_put and genlmsg_put. -7k code on i386 defconfig. 2012-01-30 15:22:06 -05:00
gre.h
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icmp.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
ieee80211_radiotap.h wireless: move ieee80211chan2mhz macro 2011-11-11 12:32:50 -05:00
ieee802154.h 6LoWPAN: add fragmentation support 2011-11-14 00:19:42 -05:00
ieee802154_netdev.h mac802154: declare reduced mlme operations 2012-05-16 15:16:56 -04:00
if_inet6.h net: delete all instances of special processing for token ring 2012-05-15 20:14:35 -04:00
inet6_connection_sock.h tcp: bind() use stronger condition for bind_conflict 2012-04-14 15:28:55 -04:00
inet6_hashtables.h net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
inet_common.h
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inet_connection_sock.h tcp: Get rid of inetpeer special cases. 2012-06-09 01:25:47 -07:00
inet_ecn.h inet: add rfc 3168 extract in front of INET_ECN_encapsulate() 2011-10-22 01:25:23 -04:00
inet_frag.h ip_frag: struct inet_frags match() method returns a bool 2012-05-18 01:40:27 -04:00
inet_hashtables.h ipv4: Early TCP socket demux. 2012-06-19 21:22:05 -07:00
inet_sock.h net: implement IP_RECVTOS for IP_PKTOPTIONS 2012-02-13 00:46:41 -05:00
inet_timewait_sock.h inet: remove rcu protection on tw_net 2011-12-14 13:34:55 -05:00
inetpeer.h inet: Avoid potential NULL peer dereference. 2012-06-11 04:13:57 -07:00
ip.h ipv4: Add sysctl knob to control early socket demux 2012-06-22 17:11:13 -07:00
ip6_checksum.h
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ip6_fib.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-06-16 01:23:04 -07:00
ip6_route.h ipv6: Handle PMTU in ICMP error handlers. 2012-06-15 14:54:11 -07:00
ip6_tunnel.h
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ip_fib.h inet: Add inetpeer tree roots to the FIB tables. 2012-06-11 02:09:16 -07:00
ip_vs.h ipvs: add support for sync threads 2012-05-08 19:40:33 +02:00
ipcomp.h
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ipconfig.h
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ipip.h tunnel: implement 64 bits statistics 2012-04-14 14:47:05 -04:00
ipv6.h ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
ipx.h
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iw_handler.h
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lapb.h lapb: Neaten debugging 2012-05-17 18:45:20 -04:00
lib80211.h include: replace linux/module.h with "struct module" wherever possible 2011-10-31 19:32:32 -04:00
llc.h
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llc_c_ac.h
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llc_c_ev.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
llc_c_st.h
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llc_conn.h
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llc_if.h
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llc_pdu.h net: delete all instances of special processing for token ring 2012-05-15 20:14:35 -04:00
llc_s_ac.h
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llc_s_ev.h
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llc_s_st.h
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llc_sap.h
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mac80211.h Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2012-06-13 15:35:35 -04:00
mac802154.h mac802154: RX data path 2012-05-16 15:16:44 -04:00
mip6.h
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mld.h
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ndisc.h Treat ND option 31 as userland (DNSSL support) 2012-04-12 15:56:57 -04:00
neighbour.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
net_namespace.h net sysctl: Add place holder functions for when sysctl support is compiled out of the kernel. 2012-04-23 19:24:28 -04:00
net_ratelimit.h
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netdma.h
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netevent.h
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netlabel.h
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netlink.h netlink: Delete all NLA_PUT*() macros. 2012-04-02 04:33:45 -04:00
netprio_cgroup.h netprio_cgroup: fix wrong memory access when NETPRIO_CGROUP=m 2012-02-10 15:08:57 -05:00
netrom.h
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nexthop.h
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nl802154.h
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p8022.h
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ping.h
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pkt_cls.h
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pkt_sched.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
protocol.h ipv4: Early TCP socket demux. 2012-06-19 21:22:05 -07:00
psnap.h
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raw.h
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rawv6.h ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
red.h net_sched: red: Make minor corrections to comments 2012-04-16 23:53:11 -04:00
regulatory.h cfg80211: pass DFS region to drivers through reg_notifier() 2011-11-21 16:20:41 -05:00
request_sock.h tcp: Change possible SYN flooding messages 2011-09-15 14:49:43 -04:00
rose.h
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route.h ipv4: Handle PMTU in all ICMP error handlers. 2012-06-14 22:22:07 -07:00
rtnetlink.h rtnetlink: ops->get_tx_queue() cannot take a const 'tb'. 2012-04-13 14:21:04 -04:00
sch_generic.h bonding: Fix corrupted queue_mapping 2012-06-12 15:29:21 -07:00
scm.h af_unix: dont send SCM_CREDENTIALS by default 2011-09-28 13:29:50 -04:00
secure_seq.h tcp: add const qualifiers where possible 2011-10-21 05:22:42 -04:00
slhc_vj.h
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snmp.h Merge branch 'for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2012-01-09 13:08:28 -08:00
sock.h ipv4: Early TCP socket demux. 2012-06-19 21:22:05 -07:00
stp.h
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tcp.h ipv4: Early TCP socket demux. 2012-06-19 21:22:05 -07:00
tcp_memcontrol.h cgroup: pass struct mem_cgroup instead of struct cgroup to socket memcg 2012-04-10 10:04:07 -07:00
tcp_states.h
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timewait_sock.h [PATCH] tcp: Cache inetpeer in timewait socket, and only when necessary. 2012-06-09 14:56:12 -07:00
transp_v6.h
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udp.h net/ipv6/udp: UDP encapsulation: introduce encap_rcv hook into IPv6 2012-04-28 22:21:51 -04:00
udplite.h net: ipv4: Standardize prefixes for message logging 2012-03-12 17:05:21 -07:00
wext.h
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wimax.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
wpan-phy.h mac802154: monitor device support 2012-05-16 15:17:08 -04:00
x25.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
x25device.h
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xfrm.h xfrm: Convert several xfrm policy match functions to bool. 2012-05-15 15:04:57 -04:00