Eric Dumazet e994b2f0fb tcp: do not lock listener to process SYN packets ... Everything should now be ready to finally allow SYN packets processing without holding listener lock. Tested: 3.5 Mpps SYNFLOOD. Plenty of cpu cycles available. Next bottleneck is the refcount taken on listener, that could be avoided if we remove SLAB_DESTROY_BY_RCU strict semantic for listeners, and use regular RCU. 13.18% [kernel] [k] __inet_lookup_listener 9.61% [kernel] [k] tcp_conn_request 8.16% [kernel] [k] sha_transform 5.30% [kernel] [k] inet_reqsk_alloc 4.22% [kernel] [k] sock_put 3.74% [kernel] [k] tcp_make_synack 2.88% [kernel] [k] ipt_do_table 2.56% [kernel] [k] memcpy_erms 2.53% [kernel] [k] sock_wfree 2.40% [kernel] [k] tcp_v4_rcv 2.08% [kernel] [k] fib_table_lookup 1.84% [kernel] [k] tcp_openreq_init_rwin Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-10-03 04:32:46 -07:00
..
netfilter	ipv4: Pass struct net into ip_route_me_harder	2015-09-29 20:21:32 +02:00
af_inet.c	net: Replace vrf_dev_table and friends	2015-09-29 20:40:33 -07:00
ah4.c	ah4: Fix error return in ah_input().	2015-08-25 13:38:50 -07:00
arp.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-09-26 16:08:27 -07:00
cipso_ipv4.c
datagram.c
devinet.c	rtnetlink: RTEXT_FILTER_SKIP_STATS support to avoid dumping inet/inet6 stats	2015-09-15 15:25:02 -07:00
esp4.c
fib_frontend.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-10-02 07:21:25 -07:00
fib_lookup.h
fib_rules.c	net: ipv6: use common fib_default_rule_pref	2015-09-09 14:19:50 -07:00
fib_semantics.c	net: Make table id type u32	2015-09-01 14:32:44 -07:00
fib_trie.c	net: Fix vti use case with oif in dst lookups	2015-09-17 16:36:34 -07:00
fou.c	fou: reject IPv6 config	2015-08-29 13:07:54 -07:00
gre_demux.c	gre: Remove support for sharing GRE protocol hook.	2015-08-10 14:03:54 -07:00
gre_offload.c
icmp.c	net: Replace vrf_master_ifindex{, _rcu} with l3mdev equivalents	2015-09-29 20:40:33 -07:00
igmp.c	net/ipv4: Pass proto as u8 instead of u16 in ip_check_mc_rcu	2015-09-29 16:27:47 -07:00
inet_connection_sock.c	tcp/dccp: add a reschedule point in inet_csk_listen_stop()	2015-10-03 04:32:45 -07:00
inet_diag.c	tcp/dccp: install syn_recv requests into ehash table	2015-10-03 04:32:41 -07:00
inet_fragment.c
inet_hashtables.c	tcp/dccp: install syn_recv requests into ehash table	2015-10-03 04:32:41 -07:00
inet_lro.c
inet_timewait_sock.c	tcp/dccp: fix timewait races in timer handling	2015-09-21 16:32:29 -07:00
inetpeer.c	net: Add helper function to compare inetpeer addresses	2015-08-28 13:32:36 -07:00
ip_forward.c	netfilter: Pass net into okfn	2015-09-17 17:18:37 -07:00
ip_fragment.c	net: Replace vrf_master_ifindex{, _rcu} with l3mdev equivalents	2015-09-29 20:40:33 -07:00
ip_gre.c	ip_tunnels: record IP version in tunnel info	2015-08-29 13:07:54 -07:00
ip_input.c	netfilter: Pass net into okfn	2015-09-17 17:18:37 -07:00
ip_options.c
ip_output.c	net: Rename IFF_VRF_MASTER to IFF_L3MDEV_MASTER	2015-09-29 20:40:32 -07:00
ip_sockglue.c
ip_tunnel.c	ip_gre: Add support to collect tunnel metadata.	2015-08-10 14:03:54 -07:00
ip_tunnel_core.c	lwtunnel: remove source and destination UDP port config option	2015-09-24 14:31:37 -07:00
ip_vti.c	net: Merge dst_output and dst_output_sk	2015-09-17 17:18:32 -07:00
ipcomp.c
ipconfig.c	net: ipv4: increase dhcp inter device timeout	2015-08-12 16:40:22 -07:00
ipip.c	ip_gre: Add support to collect tunnel metadata.	2015-08-10 14:03:54 -07:00
ipmr.c	netfilter: Pass net into okfn	2015-09-17 17:18:37 -07:00
Kconfig	geneve: Consolidate Geneve functionality in single module.	2015-08-27 15:42:48 -07:00
Makefile	geneve: Consolidate Geneve functionality in single module.	2015-08-27 15:42:48 -07:00
netfilter.c	ipv4: Pass struct net into ip_route_me_harder	2015-09-29 20:21:32 +02:00
ping.c
proc.c
protocol.c
raw.c	netfilter: Pass net into okfn	2015-09-17 17:18:37 -07:00
route.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-10-02 07:21:25 -07:00
syncookies.c	tcp/dccp: install syn_recv requests into ehash table	2015-10-03 04:32:41 -07:00
sysctl_net_ipv4.c	IGMP: Inhibit reports for local multicast groups	2015-08-28 13:28:47 -07:00
tcp.c	tcp: prepare fastopen code for upcoming listener changes	2015-09-29 16:53:10 -07:00
tcp_bic.c
tcp_cdg.c
tcp_cong.c	tcp: remove tcp_ecn_make_synack() socket argument	2015-09-25 13:00:38 -07:00
tcp_cubic.c	tcp_cubic: do not set epoch_start in the future	2015-09-17 22:35:07 -07:00
tcp_dctcp.c
tcp_diag.c
tcp_fastopen.c	tcp: attach SYNACK messages to request sockets instead of listener	2015-10-03 04:32:43 -07:00
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c
tcp_input.c	tcp: attach SYNACK messages to request sockets instead of listener	2015-10-03 04:32:43 -07:00
tcp_ipv4.c	tcp: do not lock listener to process SYN packets	2015-10-03 04:32:46 -07:00
tcp_lp.c
tcp_memcontrol.c
tcp_metrics.c	net: Add helper function to compare inetpeer addresses	2015-08-28 13:32:36 -07:00
tcp_minisocks.c	tcp: remove BUG_ON() in tcp_check_req()	2015-10-03 04:32:39 -07:00
tcp_offload.c
tcp_output.c	tcp: attach SYNACK messages to request sockets instead of listener	2015-10-03 04:32:43 -07:00
tcp_probe.c
tcp_scalable.c
tcp_timer.c
tcp_vegas.c
tcp_vegas.h
tcp_veno.c
tcp_westwood.c
tcp_yeah.c
tunnel4.c
udp.c	net: Rename IFF_VRF_MASTER to IFF_L3MDEV_MASTER	2015-09-29 20:40:32 -07:00
udp_diag.c
udp_impl.h
udp_offload.c
udp_tunnel.c	tunnel: introduce udp_tun_rx_dst()	2015-08-27 15:42:47 -07:00
udplite.c
xfrm4_input.c	netfilter: Pass net into okfn	2015-09-17 17:18:37 -07:00
xfrm4_mode_beet.c
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c
xfrm4_output.c	netfilter: Add blank lines in callers of netfilter hooks	2015-09-17 17:18:37 -07:00
xfrm4_policy.c	net: Replace vrf_master_ifindex{, _rcu} with l3mdev equivalents	2015-09-29 20:40:33 -07:00
xfrm4_protocol.c
xfrm4_state.c
xfrm4_tunnel.c