John Ogness bf06200e73 tcp: tsq: fix nonagle handling ... Commit 46d3ceabd8 ("tcp: TCP Small Queues") introduced a possible regression for applications using TCP_NODELAY. If TCP session is throttled because of tsq, we should consult tp->nonagle when TX completion is done and allow us to send additional segment, especially if this segment is not a full MSS. Otherwise this segment is sent after an RTO. [edumazet] : Cooked the changelog, added another fix about testing sk_wmem_alloc twice because TX completion can happen right before setting TSQ_THROTTLED bit. This problem is particularly visible with recent auto corking, but might also be triggered with low tcp_limit_output_bytes values or NIC drivers delaying TX completion by hundred of usec, and very low rtt. Thomas Glanzmann for example reported an iscsi regression, caused by tcp auto corking making this bug quite visible. Fixes: 46d3ceabd8 ("tcp: TCP Small Queues") Signed-off-by: John Ogness <john.ogness@linutronix.de> Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Thomas Glanzmann <thomas@glanzmann.de> Signed-off-by: David S. Miller <davem@davemloft.net>		2014-02-10 15:23:39 -08:00
..
netfilter	netfilter: nf_tables: add reject module for NFPROTO_INET	2014-02-06 09:44:18 +01:00
Kconfig	…
Makefile	gre_offload: statically build GRE offloading support	2014-01-06 20:28:34 -05:00
af_inet.c	ipv4: introduce hardened ip_no_pmtu_disc mode	2014-01-13 11:22:55 -08:00
ah4.c	…
arp.c	ipv4: arp: update neighbour address when a gratuitous arp is received and arp_accept is set	2014-01-02 00:08:38 -05:00
cipso_ipv4.c	ipv4: ERROR: code indent should use tabs where possible	2013-12-26 13:43:21 -05:00
datagram.c	…
devinet.c	ipv4: Fix runtime WARNING in rtmsg_ifa()	2014-02-06 20:02:15 -08:00
esp4.c	…
fib_frontend.c	fib_frontend: fix possible NULL pointer dereference	2014-01-24 15:51:26 -08:00
fib_lookup.h	ipv4: make fib_detect_death static	2013-12-28 17:01:46 -05:00
fib_rules.c	…
fib_semantics.c	ipv4: make fib_detect_death static	2013-12-28 17:01:46 -05:00
fib_trie.c	…
gre_demux.c	gre_offload: statically build GRE offloading support	2014-01-06 20:28:34 -05:00
gre_offload.c	net/ipv4: don't use module_init in non-modular gre_offload	2014-01-16 16:08:27 -08:00
icmp.c	ipv4: introduce hardened ip_no_pmtu_disc mode	2014-01-13 11:22:55 -08:00
igmp.c	net: replace macros net_random and net_srandom with direct calls to prandom	2014-01-14 15:15:25 -08:00
inet_connection_sock.c	net: replace macros net_random and net_srandom with direct calls to prandom	2014-01-14 15:15:25 -08:00
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_hashtables.c	…
inet_lro.c	lro: remove dead code	2013-12-29 16:34:25 -05:00
inet_timewait_sock.c	…
inetpeer.c	ipv4: remove unused function	2013-12-28 17:03:20 -05:00
ip_forward.c	ipv4: introduce ip_dst_mtu_maybe_forward and protect forwarding path against pmtu spoofing	2014-01-13 11:22:54 -08:00
ip_fragment.c	…
ip_gre.c	net: gre: use icmp_hdr() to get inner ip header	2014-01-27 20:38:26 -08:00
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: switch and case should be at the same indent	2014-01-02 03:30:36 -05:00
ip_output.c	ipv4: register igmp_notifier even when !CONFIG_PROC_FS	2014-01-14 15:03:33 -08:00
ip_sockglue.c	ipv6: make IPV6_RECVPKTINFO work for ipv4 datagrams	2014-01-19 19:53:18 -08:00
ip_tunnel.c	ip_tunnel: fix panic in ip_tunnel_xmit()	2014-02-03 13:01:48 -08:00
ip_tunnel_core.c	…
ip_vti.c	ipv4: be friend with drop monitor	2014-01-18 23:08:02 -08:00
ipcomp.c	…
ipconfig.c	…
ipip.c	ipv4: be friend with drop monitor	2014-01-18 23:08:02 -08:00
ipmr.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-01-18 00:55:41 -08:00
netfilter.c	…
ping.c	ipv6: protect protocols not handling ipv4 from v4 connection/bind attempts	2014-01-21 16:59:19 -08:00
proc.c	ipv4: spaces required around that '='	2014-01-02 03:30:36 -05:00
protocol.c	…
raw.c	net: add build-time checks for msg->msg_name size	2014-01-18 23:04:16 -08:00
route.c	ipv4: introduce ip_dst_mtu_maybe_forward and protect forwarding path against pmtu spoofing	2014-01-13 11:22:54 -08:00
syncookies.c	ipv4: fix checkpatch error "space prohibited"	2013-12-26 13:43:21 -05:00
sysctl_net_ipv4.c	ipv4: introduce ip_dst_mtu_maybe_forward and protect forwarding path against pmtu spoofing	2014-01-13 11:22:54 -08:00
tcp.c	tcp: correct code comment stating 3 min timeout for FIN_WAIT2, we only do 1 min	2014-02-09 19:14:23 -08:00
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	remove extra definitions of U32_MAX	2014-01-23 16:36:55 -08:00
tcp_input.c	tcp: remove 1ms offset in srtt computation	2014-02-06 21:28:06 -08:00
tcp_ipv4.c	tcp: delete redundant calls of tcp_mtup_init()	2014-01-21 16:52:31 -08:00
tcp_lp.c	…
tcp_memcontrol.c	…
tcp_metrics.c	tcp: metrics: Handle v6/v4-mapped sockets in tcp-metrics	2014-01-23 12:48:28 -08:00
tcp_minisocks.c	ipv6: tcp: fix flowlabel value in ACK messages send from TIME_WAIT	2014-01-17 17:56:33 -08:00
tcp_offload.c	tcp: do not export tcp_gso_segment() and tcp_gro_receive()	2014-01-14 18:53:48 -08:00
tcp_output.c	tcp: tsq: fix nonagle handling	2014-02-10 15:23:39 -08:00
tcp_probe.c	ipv4: ERROR: do not initialise globals to 0 or NULL	2013-12-26 13:43:21 -05:00
tcp_scalable.c	…
tcp_timer.c	…
tcp_vegas.c	…
tcp_vegas.h	…
tcp_veno.c	…
tcp_westwood.c	…
tcp_yeah.c	ipv4: ipv4: Cleanup the comments in tcp_yeah.c	2013-12-26 13:43:55 -05:00
tunnel4.c	…
udp.c	net: add build-time checks for msg->msg_name size	2014-01-18 23:04:16 -08:00
udp_diag.c	…
udp_impl.h	…
udp_offload.c	net/ipv4: Use proper RCU APIs for writer-side in udp_offload.c	2014-02-04 20:01:55 -08:00
udplite.c	…
xfrm4_input.c	…
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	…
xfrm4_output.c	…
xfrm4_policy.c	…
xfrm4_state.c	…
xfrm4_tunnel.c	…