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cd75eff64d
linux/net/ipv4
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Yuchung Cheng cd75eff64d tcp: reset timer after any SYNACK retransmit 
Linux immediately returns SYNACK on (spurious) SYN retransmits, but
keeps the SYNACK timer running independently. Thus the timer may
fire right after the SYNACK retransmit and causes a SYN-SYNACK
cross-fire burst.

Adopt the fast retransmit/recovery idea in established state by
re-arming the SYNACK timer after the fast (SYNACK) retransmit. The
timer may fire late up to 500ms due to the current SYNACK timer wheel,
but it's OK to be conservative when network is congested. Eric's new
listener design should address this issue.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-29 15:14:03 -04:00
..
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-22 20:32:51 -04:00
af_inet.c net: defer net_secret[] initialization 2013-04-29 15:14:02 -04:00
ah4.c net: Add skb_unclone() helper function. 2013-02-15 15:10:37 -05:00
arp.c firewire net, ipv4 arp: Extend hardware address and remove driver-level packet inspection. 2013-03-26 12:32:13 -04:00
cipso_ipv4.c cipso: don't follow a NULL pointer when setsockopt() is called 2012-07-18 09:01:12 -07:00
datagram.c ipv4: Add a socket release callback for datagram sockets 2013-01-21 14:17:05 -05:00
devinet.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-22 20:32:51 -04:00
esp4.c esp4: fix error return code in esp_output() 2013-04-15 14:05:34 -04:00
fib_frontend.c net-next: replace obsolete NLMSG_* with type safe nlmsg_* 2013-03-28 14:25:25 -04:00
fib_lookup.h
fib_rules.c sections: fix section conflicts in net 2012-10-06 03:04:45 +09:00
fib_semantics.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
fib_trie.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
gre.c GRE: Refactor GRE tunneling code. 2013-03-26 12:27:18 -04:00
icmp.c net: Add MIB counters for checksum errors 2013-04-29 15:14:03 -04:00
igmp.c net: proc: change proc_net_remove to remove_proc_entry 2013-02-18 14:53:08 -05:00
inet_connection_sock.c tcp: Remove TCPCT 2013-03-17 14:35:13 -04:00
inet_diag.c netlink: rename ssk to sk in struct netlink_skb_params 2013-04-19 14:57:56 -04:00
inet_fragment.c net: frag queue per hash bucket locking 2013-04-04 17:37:05 -04:00
inet_hashtables.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
inet_lro.c ipv4: replace ip_fast_csum with csum_replace2 2013-03-15 09:12:25 -04:00
inet_timewait_sock.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
inetpeer.c Merge branch 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq 2012-10-02 09:54:49 -07:00
ip_forward.c ipv4: introduce rt_uses_gateway 2012-10-08 17:42:36 -04:00
ip_fragment.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-22 20:32:51 -04:00
ip_gre.c net: ipv4: typo issue, remove erroneous semicolon 2013-04-25 04:07:45 -04:00
ip_input.c net: Add MIB counters for checksum errors 2013-04-29 15:14:03 -04:00
ip_options.c net/ipv4: Ensure that location of timestamp option is stored 2013-03-12 05:35:39 -04:00
ip_output.c netfilter: use IS_ENABLE to replace if defined in TRACE target 2013-04-02 01:03:45 +02:00
ip_sockglue.c net: prevent setting ttl=0 via IP_TTL 2013-01-08 17:57:10 -08:00
ip_tunnel.c ip_tunnel: Fix off-by-one error in forming dev name. 2013-03-29 15:24:28 -04:00
ip_vti.c Tunneling: use IP Tunnel stats APIs. 2013-03-26 12:27:19 -04:00
ipcomp.c xfrm: allow to avoid copying DSCP during encapsulation 2013-03-06 07:02:45 +01:00
ipconfig.c ipconfig: add informative timeout messages while waiting for carrier 2013-04-02 14:35:33 -04:00
ipip.c IPIP: Use ip-tunneling code. 2013-03-26 12:27:18 -04:00
ipmr.c net-next: replace obsolete NLMSG_* with type safe nlmsg_* 2013-03-28 14:25:25 -04:00
Kconfig Tunneling: use IP Tunnel stats APIs. 2013-03-26 12:27:19 -04:00
Makefile GRE: Refactor GRE tunneling code. 2013-03-26 12:27:18 -04:00
netfilter.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
ping.c net: sock: make sock_tx_timestamp void 2013-04-14 15:41:49 -04:00
proc.c net: Add MIB counters for checksum errors 2013-04-29 15:14:03 -04:00
protocol.c ipv4: Disallow non-namespace aware protocols to register. 2013-02-05 14:42:23 -05:00
raw.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
route.c rtnetlink: Remove passing of attributes into rtnl_doit functions 2013-03-22 10:31:16 -04:00
syncookies.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-22 20:32:51 -04:00
sysctl_net_ipv4.c tcp: refactor F-RTO 2013-03-21 11:47:50 -04:00
tcp_bic.c tcp: fix undo after RTO for BIC 2012-01-20 14:17:26 -05:00
tcp_cong.c tcp: remove Appropriate Byte Count support 2013-02-05 14:51:16 -05:00
tcp_cubic.c tcp: fix undo after RTO for CUBIC 2012-01-20 14:17:26 -05:00
tcp_diag.c inet_diag: Rename inet_diag_req into inet_diag_req_v2 2012-01-11 12:56:06 -08:00
tcp_fastopen.c tcp: TCP Fast Open Server - header & support functions 2012-08-31 20:02:18 -04:00
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c tcp: bool conversions 2012-05-17 14:59:59 -04:00
tcp_illinois.c net: fix divide by zero in tcp algorithm illinois 2012-11-01 11:55:59 -04:00
tcp_input.c net: Add MIB counters for checksum errors 2013-04-29 15:14:03 -04:00
tcp_ipv4.c net: Add MIB counters for checksum errors 2013-04-29 15:14:03 -04:00
tcp_lp.c Fix common misspellings 2011-03-31 11:26:23 -03:00
tcp_memcontrol.c net: tcp_memcontrol: minor: remove unused variable 2013-04-14 15:41:49 -04:00
tcp_metrics.c tcp: handle tcp_net_metrics_init() order-5 memory allocation failures 2012-11-16 13:36:27 -05:00
tcp_minisocks.c tcp: reset timer after any SYNACK retransmit 2013-04-29 15:14:03 -04:00
tcp_output.c net: Add MIB counters for checksum errors 2013-04-29 15:14:03 -04:00
tcp_probe.c net: proc: change proc_net_remove to remove_proc_entry 2013-02-18 14:53:08 -05:00
tcp_scalable.c
tcp_timer.c tcp: refactor F-RTO 2013-03-21 11:47:50 -04:00
tcp_vegas.c
tcp_vegas.h
tcp_veno.c
tcp_westwood.c tcp: refactor F-RTO 2013-03-21 11:47:50 -04:00
tcp_yeah.c Fix common misspellings 2011-03-31 11:26:23 -03:00
tcp.c tcp: tcp_tso_segment() small optimization 2013-04-13 16:54:14 -04:00
tunnel4.c net: Convert printks to pr_<level> 2012-03-11 23:42:51 -07:00
udp_diag.c netlink: rename ssk to sk in struct netlink_skb_params 2013-04-19 14:57:56 -04:00
udp_impl.h ipv4: fix checkpatch errors 2012-04-15 12:37:19 -04:00
udp.c net: Add MIB counters for checksum errors 2013-04-29 15:14:03 -04:00
udplite.c net: ipv4: Standardize prefixes for message logging 2012-03-12 17:05:21 -07:00
xfrm4_input.c net: Add skb_unclone() helper function. 2013-02-15 15:10:37 -05:00
xfrm4_mode_beet.c ipsec: be careful of non existing mac headers 2012-02-23 16:50:45 -05:00
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c xfrm: allow to avoid copying DSCP during encapsulation 2013-03-06 07:02:45 +01:00
xfrm4_output.c xfrm4: Don't call icmp_send on local error 2011-07-01 17:33:19 -07:00
xfrm4_policy.c xfrm: make gc_thresh configurable in all namespaces 2013-02-06 11:36:29 +01:00
xfrm4_state.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
xfrm4_tunnel.c net: ipv4: Standardize prefixes for message logging 2012-03-12 17:05:21 -07:00