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55d8694fa8
linux/net/ipv4
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Florian Westphal 55d8694fa8 net: tcp: assign tcp cong_ops when tcp sk is created 
Split assignment and initialization from one into two functions.

This is required by followup patches that add Datacenter TCP
(DCTCP) congestion control algorithm - we need to be able to
determine if the connection is moderated by DCTCP before the
3WHS has finished.

As we walk the available congestion control list during the
assignment, we are always guaranteed to have Reno present as
it's fixed compiled-in. Therefore, since we're doing the
early assignment, we don't have a real use for the Reno alias
tcp_init_congestion_ops anymore and can thus remove it.

Actual usage of the congestion control operations are being
made after the 3WHS has finished, in some cases however we
can access get_info() via diag if implemented, therefore we
need to zero out the private area for those modules.

Joint work with Daniel Borkmann and Glenn Judd.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Glenn Judd <glenn.judd@morganstanley.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-29 00:13:10 -04:00
..
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2014-09-10 12:46:32 -07:00
af_inet.c net: Remove gso_send_check as an offload callback 2014-09-26 00:22:47 -04:00
ah4.c ipsec: Remove obsolete MAX_AH_AUTH_LEN 2014-09-18 10:54:36 +02:00
arp.c arp: Do not perturb drop profiles with ignored ARP packets 2014-09-28 17:30:35 -04:00
cipso_ipv4.c netlabel: shorter names for the NetLabel catmap funcs/structs 2014-08-01 11:17:37 -04:00
datagram.c net: Save TX flow hash in sock and set in skbuf on xmit 2014-07-07 21:14:21 -07:00
devinet.c ipv4: fail early when creating netdev named all or default 2014-07-29 11:43:50 -07:00
esp4.c esp4: Use the IPsec protocol multiplexer API 2014-02-25 07:04:17 +01:00
fib_frontend.c ipv4: Restore accept_local behaviour in fib_validate_source() 2014-08-22 12:23:10 -07:00
fib_lookup.h ipv4: make fib_detect_death static 2013-12-28 17:01:46 -05:00
fib_rules.c inet: fix NULL pointer Oops in fib(6)_rule_suppress 2013-12-10 17:54:23 -05:00
fib_semantics.c ipv4: fix a race in update_or_create_fnhe() 2014-09-05 17:15:50 -07:00
fib_trie.c list: fix order of arguments for hlist_add_after(_rcu) 2014-08-06 18:01:24 -07:00
fou.c fou: Add GRO support 2014-09-19 17:15:31 -04:00
gre_demux.c net: Fix GRE RX to use skb_transport_header for GRE header offset 2014-09-08 15:23:05 -07:00
gre_offload.c net: Remove gso_send_check as an offload callback 2014-09-26 00:22:47 -04:00
icmp.c icmp: add a global rate limitation 2014-09-23 12:47:38 -04:00
igmp.c ipv4: implement igmp_qrv sysctl to tune igmp robustness variable 2014-09-04 22:26:14 -07:00
inet_connection_sock.c ipv4: make ip_local_reserved_ports per netns 2014-05-14 15:31:45 -04:00
inet_diag.c inet_diag: fix inet_diag_dump_icsk() to use correct state for timewait sockets 2014-01-13 22:35:46 -08:00
inet_fragment.c inet: frags: use kmem_cache for inet_frag_queue 2014-08-02 15:31:31 -07:00
inet_hashtables.c net: use reciprocal_scale() helper 2014-08-23 12:21:21 -07:00
inet_lro.c lro: remove dead code 2013-12-29 16:34:25 -05:00
inet_timewait_sock.c tcp/dccp: remove twchain 2013-10-08 23:19:24 -04:00
inetpeer.c inet: remove dead inetpeer sequence code 2014-09-08 16:42:42 -07:00
ip_forward.c net: rename local_df to ignore_df 2014-05-12 14:03:41 -04:00
ip_fragment.c inet: frags: use kmem_cache for inet_frag_queue 2014-08-02 15:31:31 -07:00
ip_gre.c gre: Setup and TX path for gre/UDP foo-over-udp encapsulation 2014-09-19 17:15:32 -04:00
ip_input.c net: Fix memory leak if TPROXY used with TCP early demux 2014-01-27 16:22:11 -08:00
ip_options.c ipv4: rename ip_options_echo to __ip_options_echo() 2014-09-28 16:35:42 -04:00
ip_output.c ipv4: rename ip_options_echo to __ip_options_echo() 2014-09-28 16:35:42 -04:00
ip_sockglue.c ipv4: rcu cleanup in ip_ra_control() 2014-09-09 20:10:44 -07:00
ip_tunnel_core.c net: Support for multiple checksums with gso 2014-06-04 22:46:38 -07:00
ip_tunnel.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-09-23 12:09:27 -04:00
ip_vti.c vti: Simplify error handling in module init and exit 2014-06-26 08:21:57 +02:00
ipcomp.c ipcomp4: Use the IPsec protocol multiplexer API 2014-02-25 07:04:17 +01:00
ipconfig.c ipconfig: Use time_before 2014-08-22 12:23:11 -07:00
ipip.c ipip: Setup and TX path for ipip/UDP foo-over-udp encapsulation 2014-09-19 17:15:32 -04:00
ipmr.c net: set name_assign_type in alloc_netdev() 2014-07-15 16:12:48 -07:00
Kconfig fou: Support for foo-over-udp RX path 2014-09-19 17:15:31 -04:00
Makefile fou: Support for foo-over-udp RX path 2014-09-19 17:15:31 -04:00
netfilter.c netfilter: remove double colon 2014-02-19 11:41:25 +01:00
ping.c net/ipv4: bind ip_nonlocal_bind to current netns 2014-09-09 11:27:09 -07:00
proc.c inet: frag: don't account number of fragment queues 2014-07-27 22:34:36 -07:00
protocol.c net: Export inet_offloads and inet6_offloads 2014-09-19 17:15:31 -04:00
raw.c ipv4: Make IP_MULTICAST_ALL and IP_MSFILTER work on raw sockets 2014-07-23 15:13:26 -07:00
route.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-09-23 12:09:27 -04:00
syncookies.c tcp: syncookies: mark cookie_secret read_mostly 2014-08-27 16:30:49 -07:00
sysctl_net_ipv4.c icmp: add a global rate limitation 2014-09-23 12:47:38 -04:00
tcp_bic.c tcp: whitespace fixes 2014-09-01 18:12:45 -07:00
tcp_cong.c net: tcp: assign tcp cong_ops when tcp sk is created 2014-09-29 00:13:10 -04:00
tcp_cubic.c tcp: whitespace fixes 2014-09-01 18:12:45 -07:00
tcp_diag.c tcp: whitespace fixes 2014-09-01 18:12:45 -07:00
tcp_fastopen.c tcp: remove unnecessary tcp_sk assignment. 2014-06-16 21:35:00 -07:00
tcp_highspeed.c tcp: whitespace fixes 2014-09-01 18:12:45 -07:00
tcp_htcp.c tcp: whitespace fixes 2014-09-01 18:12:45 -07:00
tcp_hybla.c tcp: whitespace fixes 2014-09-01 18:12:45 -07:00
tcp_illinois.c tcp: whitespace fixes 2014-09-01 18:12:45 -07:00
tcp_input.c tcp: use tcp_flags in tcp_data_queue() 2014-09-28 16:37:57 -04:00
tcp_ipv4.c tcp: better TCP_SKB_CB layout to reduce cache line misses 2014-09-28 16:35:43 -04:00
tcp_lp.c tcp: remove in_flight parameter from cong_avoid() methods 2014-05-03 19:23:07 -04:00
tcp_memcontrol.c cgroup: replace cgroup_add_cftypes() with cgroup_add_legacy_cftypes() 2014-07-15 11:05:09 -04:00
tcp_metrics.c tcp: don't allow syn packets without timestamps to pass tcp_tw_recycle logic 2014-08-14 14:38:54 -07:00
tcp_minisocks.c net: tcp: assign tcp cong_ops when tcp sk is created 2014-09-29 00:13:10 -04:00
tcp_offload.c net: Remove gso_send_check as an offload callback 2014-09-26 00:22:47 -04:00
tcp_output.c tcp: change tcp_skb_pcount() location 2014-09-28 16:36:48 -04:00
tcp_probe.c tcp: whitespace fixes 2014-09-01 18:12:45 -07:00
tcp_scalable.c tcp: whitespace fixes 2014-09-01 18:12:45 -07:00
tcp_timer.c tcp: avoid possible arithmetic overflows 2014-09-22 16:27:10 -04:00
tcp_vegas.c tcp: whitespace fixes 2014-09-01 18:12:45 -07:00
tcp_vegas.h net: ipv4/ipv6: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
tcp_veno.c tcp: whitespace fixes 2014-09-01 18:12:45 -07:00
tcp_westwood.c tcp: whitespace fixes 2014-09-01 18:12:45 -07:00
tcp_yeah.c tcp: whitespace fixes 2014-09-01 18:12:45 -07:00
tcp.c net: tcp: assign tcp cong_ops when tcp sk is created 2014-09-29 00:13:10 -04:00
tunnel4.c
udp_diag.c netlink: rename ssk to sk in struct netlink_skb_params 2013-04-19 14:57:56 -04:00
udp_impl.h net: ipv4/ipv6: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
udp_offload.c net: Remove gso_send_check as an offload callback 2014-09-26 00:22:47 -04:00
udp_tunnel.c udp-tunnel: Add a few more UDP tunnel APIs 2014-09-19 15:57:15 -04:00
udp.c net: merge cases where sock_efree and sock_edemux are the same function 2014-09-05 17:43:45 -07:00
udplite.c net: Eliminate no_check from protosw 2014-05-23 16:28:53 -04:00
xfrm4_input.c xfrm4: Add IPsec protocol multiplexer 2014-02-25 07:04:16 +01:00
xfrm4_mode_beet.c ipv4: ERROR: code indent should use tabs where possible 2013-12-26 13:43:21 -05:00
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c inetpeer: get rid of ip_id_count 2014-06-02 11:00:41 -07:00
xfrm4_output.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-05-24 00:32:30 -04:00
xfrm4_policy.c xfrm: Introduce xfrm_input_afinfo to access the the callbacks properly 2014-03-14 07:28:07 +01:00
xfrm4_protocol.c xfrm4: Remove duplicate semicolon 2014-06-30 07:49:47 +02:00
xfrm4_state.c inet: make no_pmtu_disc per namespace and kill ipv4_config 2013-12-18 16:58:20 -05:00
xfrm4_tunnel.c sit: add IPv4 over IPv4 support 2013-05-31 17:19:05 -07:00