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linux/net/ipv4
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Eric Dumazet 37a6266c89 tcp: add one more quick ack after after ECN events 
[ Upstream commit 15ecbe94a4 ]

Larry Brakmo proposal ( https://patchwork.ozlabs.org/patch/935233/
tcp: force cwnd at least 2 in tcp_cwnd_reduction) made us rethink
about our recent patch removing ~16 quick acks after ECN events.

tcp_enter_quickack_mode(sk, 1) makes sure one immediate ack is sent,
but in the case the sender cwnd was lowered to 1, we do not want
to have a delayed ack for the next packet we will receive.

Fixes: 522040ea5f ("tcp: do not aggressively quick ack after ECN events")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Neal Cardwell <ncardwell@google.com>
Cc: Lawrence Brakmo <brakmo@fb.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-12 16:45:15 +09:00
..
netfilter
netfilter: x_tables: initialise match/target check parameter struct
2018-07-17 11:37:54 +02:00
af_inet.c
BACKPORT: net/tcp-fastopen: Add new API support
2017-11-13 15:18:49 +08:00
ah4.c
ipsec: check return value of skb_to_sgvec always
2018-04-13 19:48:31 +02:00
arp.c
arp: fix arp_filter on l3slave devices
2018-04-13 19:48:32 +02:00
cipso_ipv4.c
tcp/dccp: fix ireq->opt races
2017-11-18 11:22:22 +01:00
datagram.c
net: Set sk_txhash from a random number
2015-07-29 22:44:04 -07:00
devinet.c
ipv4: igmp: guard against silly MTU values
2018-01-02 20:35:10 +01:00
esp4.c
ipsec: check return value of skb_to_sgvec always
2018-04-13 19:48:31 +02:00
fib_frontend.c
ipv4: remove BUG_ON() from fib_compute_spec_dst
2023-05-12 16:44:49 +09:00
fib_lookup.h
ipv4: consider TOS in fib_select_default
2015-07-24 22:46:11 -07:00
fib_rules.c
switchdev: remove FIB offload infrastructure
2016-09-28 04:48:00 -04:00
fib_semantics.c
ipv4: Fix error return value in fib_convert_metrics()
2018-07-11 16:26:42 +02:00
fib_trie.c
net: Improve handling of failures on link and route dumps
2017-06-07 12:07:44 +02:00
fou.c
net: add recursion limit to GRO
2016-10-20 14:32:22 -04:00
gre_demux.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-06-30 05:03:36 -04:00
gre_offload.c
gso: fix payload length when gso_size is zero
2017-11-18 11:22:20 +01:00
icmp.c
Merge 4.9.71 into android-4.9
2017-12-20 10:51:15 +01:00
igmp.c
multicast: do not restore deleted record source filter mode to new one
2023-05-12 16:37:51 +09:00
inet_connection_sock.c
Merge 4.9.63 into android-4.9
2017-11-18 17:25:57 +01:00
inet_diag.c
net: inet: diag: expose the socket mark to privileged processes.
2016-09-08 16:13:09 -07:00
inet_fragment.c
net: merge CVE-2018-5391 patch
2018-09-04 19:03:37 -07:00
inet_hashtables.c
soreuseport: fix initialization race
2017-11-18 11:22:22 +01:00
inet_timewait_sock.c
soreuseport: initialise timewait reuseport field
2018-05-16 10:08:41 +02:00
inetpeer.c
net: Add helper function to compare inetpeer addresses
2015-08-28 13:32:36 -07:00
ip_forward.c
ipv4: allow local fragmentation in ip_finish_output_gso()
2016-11-03 16:10:26 -04:00
ip_fragment.c
net: merge CVE-2018-5391 patch
2018-09-03 03:57:50 -07:00
ip_gre.c
net/ip_tunnels: Introduce tunnel_id_to_key32() and key32_to_tunnel_id()
2016-09-10 20:53:55 -07:00
ip_input.c
net: VRF: Pass original iif to ip_route_input()
2016-09-16 04:24:07 -04:00
ip_options.c
net: ipv4: Convert IP network timestamps to be y2038 safe
2016-03-01 17:18:44 -05:00
ip_output.c
ip: hash fragments consistently
2023-05-12 16:37:37 +09:00
ip_sockglue.c
ip: in cmsg IP(V6)_ORIGDSTADDR call pskb_may_pull
2023-05-12 16:37:39 +09:00
ip_tunnel_core.c
net: Specify the owning module for lwtunnel ops
2017-02-04 09:47:11 +01:00
ip_tunnel.c
ip_tunnel: better validate user provided tunnel names
2018-04-13 19:48:34 +02:00
ip_vti.c
Revert "vti4: Don't override MTU passed on link creation via IFLA_MTU"
2018-05-30 22:25:17 +02:00
ipcomp.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
ipconfig.c
ipconfig: Correctly initialise ic_nameservers
2023-05-12 16:43:45 +09:00
ipip.c
ipip: only increase err_count for some certain type icmp in ipip_err
2017-11-18 11:22:23 +01:00
ipmr.c
ipmr: vrf: Find VIFs using the actual device
2018-04-13 19:47:59 +02:00
Kconfig
tcp: Set DEFAULT_TCP_CONG to bbr if DEFAULT_BBR is set
2016-11-28 12:15:00 -05:00
Makefile
ANDROID: sysfs_net_ipv4: Add sysfs-based knobs for controlling TCP window size
2017-01-19 13:32:01 -08:00
netfilter.c
netfilter: use skb_to_full_sk in ip_route_me_harder
2017-07-05 14:40:28 +02:00
ping.c
Merge 4.9.101 into android-4.9
2018-05-19 14:06:17 +02:00
proc.c
net: Suppress the "Comparison to NULL could be written" warnings
2016-09-30 01:50:45 -04:00
protocol.c
net: Export inet_offloads and inet6_offloads
2014-09-19 17:15:31 -04:00
raw.c
Merge 4.9.74 into android-4.9
2018-01-02 20:45:15 +01:00
route.c
Merge 4.9.104 into android-4.9
2018-05-30 13:19:56 +02:00
syncookies.c
Merge 4.9.63 into android-4.9
2017-11-18 17:25:57 +01:00
sysctl_net_ipv4.c
ipv4: Return EINVAL when ping_group_range sysctl doesn't map to user ns
2023-05-12 16:36:59 +09:00
sysfs_net_ipv4.c
ANDROID: sysfs_net_ipv4: Add sysfs-based knobs for controlling TCP window size
2017-01-19 13:32:01 -08:00
tcp_bbr.c
tcp_bbr: fix bw probing to raise in-flight data for very small BDPs
2023-05-12 16:45:02 +09:00
tcp_bic.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_cdg.c
tcp: cdg: rename struct minmax in tcp_cdg.c to avoid a naming conflict
2016-09-21 00:22:59 -04:00
tcp_cong.c
tcp: disallow cwnd undo when switching congestion control
2017-06-14 15:05:52 +02:00
tcp_cubic.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_dctcp.c
tcp: add max_quickacks param to tcp_incr_quickack and tcp_enter_quickack_mode
2023-05-12 16:45:09 +09:00
tcp_diag.c
net: diag: Fix refcnt leak in error path destroying socket
2016-08-23 23:11:36 -07:00
tcp_fastopen.c
BACKPORT: net/tcp-fastopen: Add new API support
2017-11-13 15:18:49 +08:00
tcp_highspeed.c
tcp: add tcp_in_slow_start helper
2015-07-09 14:22:52 -07:00
tcp_htcp.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_hybla.c
tcp: do not slow start when cwnd equals ssthresh
2015-07-09 14:22:52 -07:00
tcp_illinois.c
net/tcp/illinois: replace broken algorithm reference link
2018-05-30 07:50:33 +02:00
tcp_input.c
tcp: add one more quick ack after after ECN events
2023-05-12 16:45:15 +09:00
tcp_ipv4.c
Merge 4.9.110 into android-4.9
2018-06-26 09:32:02 +08:00
tcp_lp.c
tcp: fix wraparound issue in tcp_lp
2017-05-14 14:00:21 +02:00
tcp_metrics.c
tcp: make nla_policy const
2016-09-01 14:09:01 -07:00
tcp_minisocks.c
tcp/dccp: block bh before arming time_wait timer
2017-12-16 16:25:46 +01:00
tcp_nv.c
tcp_nv: fix potential integer overflow in tcpnv_acked
2018-05-30 07:50:22 +02:00
tcp_offload.c
gso: validate gso_type in GSO handlers
2018-01-31 12:55:55 +01:00
tcp_output.c
tcp: do not cancel delay-AcK on DCTCP special ACK
2023-05-12 16:38:00 +09:00
tcp_probe.c
tcp: tcp_probe: use spin_lock_bh()
2017-06-17 06:41:49 +02:00
tcp_rate.c
tcp: invalidate rate samples during SACK reneging
2018-01-02 20:35:13 +01:00
tcp_recovery.c
tcp: do not assume TCP code is non preemptible
2016-05-02 17:02:25 -04:00
tcp_scalable.c
tcp: add tcp_in_slow_start helper
2015-07-09 14:22:52 -07:00
tcp_timer.c
Amlogic: sync the code from mainline. [1/1]
2020-02-04 13:48:58 +09:00
tcp_vegas.c
tcp: fix under-evaluated ssthresh in TCP Vegas
2017-12-25 14:23:45 +01:00
tcp_vegas.h
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_veno.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_westwood.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_yeah.c
tcp: cwnd does not increase in TCP YeAH
2016-09-08 17:16:12 -07:00
tcp.c
net: diag: Don't double-free TCP_NEW_SYN_RECV sockets in tcp_abort
2023-05-12 16:37:07 +09:00
tunnel4.c
tunnels: correct conditional build of MPLS and IPv6
2016-07-11 13:27:06 -07:00
udp_diag.c
net: inet: diag: expose the socket mark to privileged processes.
2016-09-08 16:13:09 -07:00
udp_impl.h
udplite: call proper backlog handlers
2016-11-24 15:32:14 -05:00
udp_offload.c
gso: validate gso_type in GSO handlers
2018-01-31 12:55:55 +01:00
udp_tunnel.c
net: Remove deprecated tunnel specific UDP offload functions
2016-06-17 20:23:32 -07:00
udp.c
Merge 4.9.101 into android-4.9
2018-05-19 14:06:17 +02:00
udplite.c
udplite: call proper backlog handlers
2016-11-24 15:32:14 -05:00
xfrm4_input.c
netfilter: Pass net into okfn
2015-09-17 17:18:37 -07:00
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
[IPSEC]: Use IPv6 calling convention as the convention for x->mode->output
2007-10-10 16:55:54 -07:00
xfrm4_mode_tunnel.c
ipv4: hash net ptr into fragmentation bucket selection
2015-03-25 14:07:04 -04:00
xfrm4_output.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-10-24 06:54:12 -07:00
xfrm4_policy.c
Merge 4.9.104 into android-4.9
2018-05-30 13:19:56 +02:00
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