Eric Dumazet 21d1196a35 ipv4: set transport header earlier ... commit 45f00f99d6 ("ipv4: tcp: clean up tcp_v4_early_demux()") added a performance regression for non GRO traffic, basically disabling IP early demux. IPv6 stack resets transport header in ip6_rcv() before calling IP early demux in ip6_rcv_finish(), while IPv4 does this only in ip_local_deliver_finish(), _after_ IP early demux. GRO traffic happened to enable IP early demux because transport header is also set in inet_gro_receive() Instead of reverting the faulty commit, we can make IPv4/IPv6 behave the same : transport_header should be set in ip_rcv() instead of ip_local_deliver_finish() ip_local_deliver_finish() can also use skb_network_header_len() which is faster than ip_hdrlen() Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2013-07-16 12:59:28 -07:00
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netfilter
af_inet.c
ah4.c
arp.c
cipso_ipv4.c
datagram.c
devinet.c
esp4.c
fib_frontend.c
fib_lookup.h
fib_rules.c
fib_semantics.c
fib_trie.c
gre_demux.c
gre_offload.c
icmp.c
igmp.c
inet_connection_sock.c
inet_diag.c
inet_fragment.c
inet_hashtables.c
inet_lro.c
inet_timewait_sock.c
inetpeer.c
ip_forward.c
ip_fragment.c
ip_gre.c
ip_input.c	ipv4: set transport header earlier	2013-07-16 12:59:28 -07:00
ip_options.c
ip_output.c
ip_sockglue.c
ip_tunnel_core.c
ip_tunnel.c
ip_vti.c
ipcomp.c
ipconfig.c
ipip.c
ipmr.c
Kconfig
Makefile
netfilter.c
ping.c
proc.c
protocol.c
raw.c
route.c
syncookies.c
sysctl_net_ipv4.c
tcp_bic.c
tcp_cong.c
tcp_cubic.c
tcp_diag.c
tcp_fastopen.c
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c
tcp_input.c
tcp_ipv4.c
tcp_lp.c
tcp_memcontrol.c
tcp_metrics.c
tcp_minisocks.c
tcp_offload.c
tcp_output.c	tcp: account all retransmit failures	2013-07-12 16:15:56 -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
tcp.c
tunnel4.c
udp_diag.c
udp_impl.h
udp_offload.c
udp.c
udplite.c
xfrm4_input.c
xfrm4_mode_beet.c
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c
xfrm4_output.c
xfrm4_policy.c
xfrm4_state.c
xfrm4_tunnel.c