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agnos-kernel-sdm845/net/ipv4
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Eric Dumazet 5f63431093 tcp: remove poll() flakes with FastOpen 
[ Upstream commit 0f9fa831aecfc297b7b45d4f046759bcefcf87f0 ]

When using TCP FastOpen for an active session, we send one wakeup event
from tcp_finish_connect(), right before the data eventually contained in
the received SYNACK is queued to sk->sk_receive_queue.

This means that depending on machine load or luck, poll() users
might receive POLLOUT events instead of POLLIN|POLLOUT

To fix this, we need to move the call to sk->sk_state_change()
after the (optional) call to tcp_rcv_fastopen_synack()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-24 11:00:12 +01:00
..
netfilter
netfilter: x_tables: pack percpu counter allocations
2018-03-18 11:18:54 +01:00
af_inet.c
igmp: Fix regression caused by igmp sysctl namespace code.
2017-08-12 19:31:22 -07:00
ah4.c
IPsec: do not ignore crypto err in ah4 input
2017-11-15 15:53:15 +01:00
arp.c
ipv4: Make neigh lookup keys for loopback/point-to-point devices be INADDR_ANY
2018-01-31 12:55:55 +01:00
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
esp4: Fix integrity verification when ESN are used
2016-11-30 11:09:39 +01:00
fib_frontend.c
ipv4: Fix use-after-free when flushing FIB tables
2018-01-02 20:35:12 +01:00
fib_lookup.h
…
fib_rules.c
switchdev: remove FIB offload infrastructure
2016-09-28 04:48:00 -04:00
fib_semantics.c
fib_semantics: Don't match route with mismatching tclassid
2018-03-11 16:21:31 +01:00
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
icmp: don't fail on fragment reassembly time exceeded
2017-12-20 10:07:33 +01:00
igmp.c
net: igmp: add a missing rcu locking section
2018-02-13 12:35:56 +01:00
inet_connection_sock.c
tcp/dccp: fix other lockdep splats accessing ireq_opt
2017-11-18 11:22:22 +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
Revert "net: use lib/percpu_counter API for fragmentation mem accounting"
2017-09-20 08:19:55 +02:00
inet_hashtables.c
soreuseport: fix initialization race
2017-11-18 11:22:22 +01:00
inet_timewait_sock.c
timers, net/ipv4/inet: Initialize connection request timers as pinned
2016-07-07 10:35:06 +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
inet: frag: release spinlock before calling icmp_send()
2017-12-25 14:23:39 +01:00
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
udp: consistently apply ufo or fragmentation
2017-08-12 19:31:22 -07:00
ip_sockglue.c
netfilter: drop outermost socket lock in getsockopt()
2018-02-28 10:18:30 +01:00
ip_tunnel_core.c
net: Specify the owning module for lwtunnel ops
2017-02-04 09:47:11 +01:00
ip_tunnel.c
ipv4: igmp: guard against silly MTU values
2018-01-02 20:35:10 +01:00
ip_vti.c
vti: fix use after free in vti_tunnel_xmit/vti6_tnl_xmit
2017-10-12 11:51:22 +02:00
ipcomp.c
…
ipconfig.c
net: ipconfig: fix ic_close_devs() use-after-free
2017-12-25 14:23:42 +01:00
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
ipv4: allow local fragmentation in ip_finish_output_gso()
2016-11-03 16:10:26 -04:00
Kconfig
tcp: Set DEFAULT_TCP_CONG to bbr if DEFAULT_BBR is set
2016-11-28 12:15:00 -05:00
Makefile
tcp_bbr: add BBR congestion control
2016-09-21 00:23:01 -04:00
netfilter.c
netfilter: use skb_to_full_sk in ip_route_me_harder
2017-07-05 14:40:28 +02:00
ping.c
ping: implement proper locking
2017-05-03 08:36:34 -07:00
proc.c
net: Suppress the "Comparison to NULL could be written" warnings
2016-09-30 01:50:45 -04:00
protocol.c
…
raw.c
net: ipv4: fix for a race condition in raw_sendmsg
2018-01-02 20:35:12 +01:00
route.c
net: ipv4: don't allow setting net.ipv4.route.min_pmtu below 68
2018-03-11 16:21:31 +01:00
syncookies.c
tcp/dccp: fix ireq->opt races
2017-11-18 11:22:22 +01:00
sysctl_net_ipv4.c
ipv4: make tcp_notsent_lowat sysctl knob behave as true unsigned int
2017-08-11 08:49:35 -07:00
tcp_bbr.c
tcp_bbr: fix pacing_gain to always be unity when using lt_bw
2018-02-13 12:35:56 +01:00
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
dctcp: avoid bogus doubling of cwnd after loss
2016-10-31 15:16:28 -04:00
tcp_diag.c
net: diag: Fix refcnt leak in error path destroying socket
2016-08-23 23:11:36 -07:00
tcp_fastopen.c
tcp: initialize max window for a new fastopen socket
2017-02-04 09:47:10 +01:00
tcp_highspeed.c
…
tcp_htcp.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_hybla.c
…
tcp_illinois.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_input.c
tcp: remove poll() flakes with FastOpen
2018-03-24 11:00:12 +01:00
tcp_ipv4.c
tcp md5sig: Use skb's saddr when replying to an incoming segment
2018-01-02 20:35:11 +01:00
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 division by zero in tcpnv_acked()
2017-11-24 08:33:40 +01:00
tcp_offload.c
gso: validate gso_type in GSO handlers
2018-01-31 12:55:55 +01:00
tcp_output.c
tcp_bbr: better deal with suboptimal GSO
2018-03-11 16:21:33 +01:00
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_timer.c
net: tcp: close sock if net namespace is exiting
2018-01-31 12:55:54 +01:00
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
tcp: release sk_frag.page in tcp_disconnect
2018-02-13 12:35:56 +01:00
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
udplite: fix partial checksum initialization
2018-03-11 16:21:32 +01:00
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
…
xfrm4_mode_transport.c
…
xfrm4_mode_tunnel.c
…
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 git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-09-12 15:52:44 -07:00
xfrm4_protocol.c
…
xfrm4_state.c
…
xfrm4_tunnel.c
…