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e71fac01727a9495f08de9db5259089bee311766
linux/include/net
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Yousuk Seung e74fe7268e tcp: invalidate rate samples during SACK reneging 
[ Upstream commit d4761754b4 ]

Mark tcp_sock during a SACK reneging event and invalidate rate samples
while marked. Such rate samples may overestimate bw by including packets
that were SACKed before reneging.

< ack 6001 win 10000 sack 7001:38001
< ack 7001 win 0 sack 8001:38001 // Reneg detected
> seq 7001:8001 // RTO, SACK cleared.
< ack 38001 win 10000

In above example the rate sample taken after the last ack will count
7001-38001 as delivered while the actual delivery rate likely could
be much lower i.e. 7001-8001.

This patch adds a new field tcp_sock.sack_reneg and marks it when we
declare SACK reneging and entering TCP_CA_Loss, and unmarks it after
the last rate sample was taken before moving back to TCP_CA_Open. This
patch also invalidates rate samples taken while tcp_sock.is_sack_reneg
is set.

Fixes: b9f64820fb ("tcp: track data delivery rate for a TCP connection")
Signed-off-by: Yousuk Seung <ysseung@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Priyaranjan Jha <priyarjha@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-02 20:35:13 +01:00
..
9p
9p: switch p9_client_read() to passing struct iov_iter *
2015-04-11 22:28:27 -04:00
bluetooth
Bluetooth: Fix using the correct source address type
2016-11-22 22:50:46 +01:00
caif
caif: fix a signedness bug in cfpkt_iterate()
2015-02-20 17:35:14 -05:00
irda
irda: Convert function pointer arrays and uses to const
2014-12-10 15:33:16 -05:00
iucv
s390/iucv: do not use arrays as argument
2015-09-21 16:03:04 -07:00
netfilter
netfilter: nat: Revert "netfilter: nat: convert nat bysrc hash to rhashtable"
2017-11-18 11:22:24 +01:00
netns
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-09-25 23:34:19 +02:00
nfc
NFC: digital: Add support for NFC DEP Response Waiting Time
2016-07-11 02:01:14 +02:00
phonet
sock: struct proto hash function may error
2016-02-11 03:54:14 -05:00
sctp
sctp: potential read out of bounds in sctp_ulpevent_type_enabled()
2017-10-12 11:51:20 +02:00
tc_act
net_sched: act_vlan: add helper inlines to access tcf_vlan info
2016-09-23 07:22:11 -04:00
6lowpan.h
6lowpan: add 802.15.4 short addr slaac
2016-06-15 20:41:22 -07:00
act_api.h
net_sched: convert tcf_exts from list to pointer array
2016-08-17 19:27:51 -04:00
addrconf.h
ipv6: reorder ip6_route_dev_notifier after ipv6_dev_notf
2017-05-14 14:00:21 +02:00
af_ieee802154.h
ieee802154: af_ieee802154: fix typo in comment.
2015-09-17 13:20:05 +02:00
af_rxrpc.h
rxrpc: Rewrite the data and ack handling code
2016-09-08 11:10:12 +01:00
af_unix.h
af_unix: split 'u->readlock' into two: 'iolock' and 'bindlock'
2016-09-04 13:29:29 -07:00
af_vsock.h
vhost-vsock: add pkt cancel capability
2017-12-25 14:23:37 +01:00
ah.h
ipsec: Remove obsolete MAX_AH_AUTH_LEN
2014-09-18 10:54:36 +02:00
arp.h
neigh: Factor out ___neigh_lookup_noref
2015-03-04 00:23:23 -05:00
atmclip.h
…
ax25.h
ax25: Stop using sock->sk_protinfo.
2015-06-28 16:55:44 -07:00
ax88796.h
…
bond_3ad.h
bonding: 3ad: apply ad_actor settings changes immediately
2016-02-09 04:45:49 -05:00
bond_alb.h
net: Move bonding headers under include/net
2014-11-10 13:27:49 -05:00
bond_options.h
bonding: convert num_grat_arp to the new bonding option API
2015-07-27 01:05:24 -07:00
bonding.h
bonding: quit messing with IOCTL
2016-09-27 21:15:21 -04:00
busy_poll.h
net: un-inline sk_busy_loop()
2015-11-18 16:17:38 -05:00
calipso.h
calipso: Add a label cache.
2016-06-27 15:06:17 -04:00
cfg80211-wext.h
…
cfg80211.h
cfg80211/mac80211: fix BSS leaks when abandoning assoc attempts
2017-01-09 08:32:17 +01:00
cfg802154.h
ieee802154: add netns support
2016-07-08 12:20:57 +02:00
checksum.h
csum: Update csum_block_add to use rotate instead of byteswap
2016-03-13 15:01:00 -04:00
cipso_ipv4.h
netlabel: out of bound access in cipso_v4_validate()
2017-02-18 15:11:41 +01:00
cls_cgroup.h
cls_cgroup: get sk_classid only from full sockets
2016-04-19 20:09:25 -04:00
codel_impl.h
codel: split into multiple files
2016-04-25 16:44:27 -04:00
codel_qdisc.h
net_sched: fq_codel: cache skb->truesize into skb->cb
2016-06-25 12:19:35 -04:00
codel.h
codel: split into multiple files
2016-04-25 16:44:27 -04:00
compat.h
packet: compat support for sock_fprog
2016-06-09 23:41:03 -07:00
datalink.h
net: Move prototype declaration to header file include/net/datalink.h from net/ipx/af_ipx.c
2014-02-09 17:32:50 -08:00
dcbevent.h
include/net/: Fix FSF address in file headers
2013-12-06 12:37:56 -05:00
dcbnl.h
net/dcb: Add IEEE QCN attribute
2015-03-06 21:50:02 -05:00
devlink.h
devlink: remove unused priv_size
2016-08-26 11:55:18 -07:00
dn_dev.h
dn_dev: add support for IFA_FLAGS nl attribute
2013-12-10 21:50:00 -05:00
dn_fib.h
decnet (dn*.h): Remove extern from function prototypes
2013-09-20 14:49:32 -04:00
dn_neigh.h
netfilter: Pass net into okfn
2015-09-17 17:18:37 -07:00
dn_nsp.h
decnet (dn*.h): Remove extern from function prototypes
2013-09-20 14:49:32 -04:00
dn_route.h
net: Move prototype declaration to appropriate header file from decnet/af_decnet.c
2014-02-09 17:32:49 -08:00
dn.h
net: Move prototype declaration to header file include/net/dn.h from net/decnet/af_decnet.c
2014-02-09 17:32:49 -08:00
dsa.h
net: dsa: add port fast ageing
2016-09-23 08:38:50 -04:00
dsfield.h
…
dst_cache.h
net: add dst_cache support
2016-02-16 20:21:48 -05:00
dst_metadata.h
net/dst: Utility functions to build dst_metadata without supplying an skb
2016-09-10 20:53:55 -07:00
dst_ops.h
ipv4, ipv6: Pass net into __ip_local_out and __ip6_local_out
2015-10-08 04:27:02 -07:00
dst.h
ipv4: add reference counting to metrics
2017-06-07 12:07:46 +02:00
esp.h
net: move pskb_put() to core code
2013-11-07 19:28:58 -05:00
ethoc.h
net/ethoc: support big-endian register layout
2015-09-23 15:33:15 -07:00
fib_rules.h
net: Add l3mdev rule
2016-06-08 11:36:02 -07:00
firewire.h
firewire net, ipv4 arp: Extend hardware address and remove driver-level packet inspection.
2013-03-26 12:32:13 -04:00
flow_dissector.h
rps: flow_dissector: Add the const for the parameter of flow_keys_have_l4
2016-09-01 16:51:08 -07:00
flow.h
net: flow: Remove FLOWI_FLAG_L3MDEV_SRC flag
2016-09-10 23:12:53 -07:00
flowcache.h
flowcache: Make flow cache name space aware
2014-02-12 07:02:11 +01:00
fou.h
fou: Add encap ops for IPv6 tunnels
2016-05-20 18:03:16 -04:00
fq_impl.h
fq.h: Port memory limit mechanism from fq_codel
2016-09-30 13:29:21 +02:00
fq.h
fq.h: Port memory limit mechanism from fq_codel
2016-09-30 13:29:21 +02:00
garp.h
garp.h: Remove extern from function prototypes
2013-09-20 14:49:33 -04:00
gen_stats.h
net: sched: do not acquire qdisc spinlock in qdisc/class stats dump
2016-06-07 16:37:14 -07:00
genetlink.h
Revert "genl: Add genlmsg_new_unicast() for unicast message allocation"
2016-02-18 11:42:19 -05:00
geneve.h
net: Remove deprecated tunnel specific UDP offload functions
2016-06-17 20:23:32 -07:00
gre.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-08-18 01:17:32 -04:00
gro_cells.h
gro_cells: mark napi struct as not busy poll candidates
2016-11-15 22:27:27 -05:00
gtp.h
gtp: #define #define _GTP_H_ and not #define _GTP_H
2016-07-25 17:55:43 -07:00
gue.h
gue: Protocol constants for remote checksum offload
2014-11-05 16:30:03 -05:00
hwbm.h
net: add a hardware buffer management helper API
2016-03-14 12:19:46 -04:00
icmp.h
net: snmp: kill STATS_BH macros
2016-04-27 22:48:25 -04:00
ieee80211_radiotap.h
mac80211: add support for radiotap timestamp field
2016-09-12 11:45:45 +02:00
ieee802154_netdev.h
mac802154: constify ieee802154_llsec_ops structure
2016-01-04 20:40:41 +01:00
if_inet6.h
IPv6: fix DESYNC_FACTOR
2016-10-14 10:59:15 -04:00
ila.h
ila: Add generic ILA translation facility
2015-12-15 23:25:20 -05:00
inet6_connection_sock.h
ipv6: remove unused in6_addr struct
2016-03-22 15:45:44 -04:00
inet6_hashtables.h
tcp/dccp: do not touch listener sk_refcnt under synflood
2016-04-04 22:11:20 -04:00
inet_common.h
ip4ip6: Support for GSO/GRO
2016-05-20 18:03:17 -04:00
inet_connection_sock.h
tcp: increase ICSK_CA_PRIV_SIZE from 64 bytes to 88
2016-09-21 00:23:01 -04:00
inet_ecn.h
ipv6: suppress sparse warnings in IP6_ECN_set_ce()
2016-08-13 15:08:00 -07:00
inet_frag.h
Revert "net: fix percpu memory leaks"
2017-09-20 08:19:55 +02:00
inet_hashtables.h
tcp/dccp: do not touch listener sk_refcnt under synflood
2016-04-04 22:11:20 -04:00
inet_sock.h
tcp/dccp: fix other lockdep splats accessing ireq_opt
2017-11-18 11:22:22 +01:00
inet_timewait_sock.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-10-20 06:08:27 -07:00
inetpeer.h
inet: tcp: fix inetpeer_set_addr_v4()
2015-12-16 00:14:12 -05:00
ip6_checksum.h
ipv6: Pass proto to csum_ipv6_magic as __u8 instead of unsigned short
2016-03-13 23:55:13 -04:00
ip6_fib.h
ipv6: fix sparse warning on rt6i_node
2017-09-20 08:19:53 +02:00
ip6_route.h
net: ipv6: Compare lwstate in detecting duplicate nexthops
2017-07-21 07:42:19 +02:00
ip6_tunnel.h
ip6_tunnel: Clear IP6CB in ip6tunnel_xmit()
2016-11-02 15:18:36 -04:00
ip_fib.h
ipv4: add reference counting to metrics
2017-06-07 12:07:46 +02:00
ip_tunnels.h
ip_tunnel: add collect_md mode to IPIP tunnel
2016-09-17 10:13:07 -04:00
ip_vs.h
ipvs: update real-server binding of outgoing connections in SIP-pe
2016-06-06 09:47:25 +09:00
ip.h
ipv4: igmp: guard against silly MTU values
2018-01-02 20:35:10 +01:00
ipcomp.h
…
ipconfig.h
…
ipv6.h
ipv6: fix flow labels when the traffic class is non-0
2017-06-17 06:41:52 +02:00
ipx.h
switch ipxrtr_route_packet() from iovec to msghdr
2014-11-24 04:28:49 -05:00
iw_handler.h
wext: handle NULL extra data in iwe_stream_add_point better
2017-08-11 08:49:34 -07:00
kcm.h
kcm: Use stream parser
2016-08-17 19:36:23 -04:00
l3mdev.h
net: ipv4: Do not drop to make_route if oif is l3mdev
2016-10-13 12:05:26 -04:00
lapb.h
lapb.h: Remove extern from function prototypes
2013-09-21 14:01:38 -04:00
lib80211.h
lib80211: remove unused print_ssid()
2014-10-14 02:18:27 +02:00
llc_c_ac.h
llc*.h: Remove extern from function prototypes
2013-09-21 14:01:38 -04:00
llc_c_ev.h
llc*.h: Remove extern from function prototypes
2013-09-21 14:01:38 -04:00
llc_c_st.h
llc: Make llc_conn_ev_qfyr_t function pointer arrays const
2014-12-10 15:21:24 -05:00
llc_conn.h
net: Pass kern from net_proto_family.create to sk_alloc
2015-05-11 10:50:17 -04:00
llc_if.h
llc*.h: Remove extern from function prototypes
2013-09-21 14:01:38 -04:00
llc_pdu.h
net: llc: fix order of evaluation in llc_conn_ac_inc_vr_by_1
2014-01-01 22:22:43 -05:00
llc_s_ac.h
llc*.h: Remove extern from function prototypes
2013-09-21 14:01:38 -04:00
llc_s_ev.h
llc*.h: Remove extern from function prototypes
2013-09-21 14:01:38 -04:00
llc_s_st.h
llc: Make llc_sap_action_t function pointer arrays const
2014-12-10 15:21:24 -05:00
llc_sap.h
llc*.h: Remove extern from function prototypes
2013-09-21 14:01:38 -04:00
llc.h
llc: make lock static
2014-01-03 20:56:48 -05:00
lwtunnel.h
lwtunnel: valid encap attr check should return 0 when lwtunnel is disabled
2017-02-18 15:11:42 +01:00
mac80211.h
mac80211: fix VLAN handling with TXQs
2017-10-05 09:43:58 +02:00
mac802154.h
ieee802154: cleanup WARN_ON for fc fetch
2016-07-08 13:23:12 +02:00
mip6.h
include/net/: Fix FSF address in file headers
2013-12-06 12:37:56 -05:00
mld.h
ipv6: mld: answer mldv2 queries with mldv1 reports in mldv1 fallback
2014-09-22 16:23:15 -04:00
mpls_iptunnel.h
mpls: multipath route support
2015-10-23 06:26:42 -07:00
mpls.h
openvswitch: use mpls_hdr
2016-10-03 02:00:22 -04:00
mrp.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2013-10-01 17:06:14 -04:00
ncsi.h
net/ncsi: Introduce ncsi_stop_dev()
2016-10-04 02:11:51 -04:00
ndisc.h
6lowpan: introduce 6lowpan-nd
2016-06-15 20:41:23 -07:00
neighbour.h
net: add explicit logging and stat for neighbour table overflow
2015-08-10 13:46:21 -07:00
net_namespace.h
netns: fix get_net_ns_by_fd(int pid) typo
2016-11-18 14:01:58 -05:00
net_ratelimit.h
…
netevent.h
neigh: Send a notification when DELAY_PROBE_TIME changes
2016-07-05 09:06:29 -07:00
netlabel.h
netlabel: Implement CALIPSO config functions for SMACK.
2016-06-27 15:06:18 -04:00
netlink.h
netlink: fix nla_put_{u8,u16,u32} for KASAN
2017-10-12 11:51:25 +02:00
netprio_cgroup.h
net: wrap sock->sk_cgrp_prioidx and ->sk_classid inside a struct
2015-12-08 22:02:33 -05:00
netrom.h
netrom.h: Remove extern from function prototypes
2013-09-21 14:01:39 -04:00
nexthop.h
…
nl802154.h
ieee802154: add netns support
2016-07-08 12:20:57 +02:00
p8022.h
p8022.h: Remove extern from function prototypes
2013-09-21 14:01:39 -04:00
ping.h
net: ping: make ping_v6_sendmsg static
2016-03-23 22:09:58 -04:00
pkt_cls.h
net/sched: pkt_cls: change tc actions order to be as the user sets
2016-09-28 05:02:44 -04:00
pkt_sched.h
net: sched: convert qdisc linked list to hashtable
2016-08-10 17:19:02 -07:00
pptp.h
pptp: Refactor the struct and macros of PPTP codes
2016-08-15 10:55:53 -07:00
protocol.h
udp: Remove udp_offloads
2016-04-07 16:53:30 -04:00
psnap.h
psnap.h: Remove extern from function prototypes
2013-09-23 01:51:08 -04:00
raw.h
sock: struct proto hash function may error
2016-02-11 03:54:14 -05:00
rawv6.h
raw/rawv6.h: Remove extern from function prototypes
2013-09-23 01:51:08 -04:00
red.h
reciprocal_divide: update/correction of the algorithm
2014-01-21 23:17:20 -08:00
regulatory.h
cfg80211: allow wiphy specific regdomain management
2014-12-17 11:49:55 +01:00
request_sock.h
inet: reqsk_alloc() needs to take care of dead listeners
2016-04-04 22:11:19 -04:00
rose.h
rose.h: Remove extern from function prototypes
2013-09-23 01:51:08 -04:00
route.h
net: ipv4: Remove l3mdev_get_saddr
2016-09-10 23:12:53 -07:00
rtnetlink.h
net: rtnetlink: add support for the IFLA_STATS_LINK_XSTATS_SLAVE attribute
2016-06-30 06:15:04 -04:00
sch_generic.h
net_sched: fix order of queue length updates in qdisc_replace()
2017-08-30 10:21:42 +02:00
scm.h
unix: correctly track in-flight fds in sending process user_struct
2016-02-08 10:30:42 -05:00
secure_seq.h
inetpeer: get rid of ip_id_count
2014-06-02 11:00:41 -07:00
slhc_vj.h
…
snmp.h
net: snmp: fix 64bit stats on 32bit arches
2016-04-28 11:49:45 -04:00
sock_reuseport.h
soreuseport: fix NULL ptr dereference SO_REUSEPORT after bind
2016-01-19 14:44:23 -05:00
sock.h
net: remove hlist_nulls_add_tail_rcu()
2017-12-16 16:25:45 +01:00
Space.h
drivers: net: Include new header file in sbni.c
2013-12-19 18:51:20 -05:00
stp.h
stp.h: Remove extern from function prototypes
2013-09-23 01:51:09 -04:00
strparser.h
kcm: Remove TCP specific references from kcm and strparser
2016-08-28 23:32:41 -04:00
switchdev.h
switchdev: remove FIB offload infrastructure
2016-09-28 04:48:00 -04:00
tcp_states.h
inet: add TCP_NEW_SYN_RECV state
2015-03-12 22:58:12 -04:00
tcp.h
tcp: invalidate rate samples during SACK reneging
2018-01-02 20:35:13 +01:00
timewait_sock.h
inet: remove BUG_ON() in twsk_destructor()
2015-07-09 15:12:20 -07:00
transp_v6.h
ipv6: add new struct ipcm6_cookie
2016-05-03 16:08:14 -04:00
tso.h
net: tso: add support for IPv6
2015-10-26 22:24:22 -07:00
udp_tunnel.h
vxlan: Add new UDP encapsulation offload type for VXLAN-GPE
2016-06-17 20:23:32 -07:00
udp.h
udp: must lock the socket in udp_disconnect()
2016-10-20 14:45:52 -04:00
udplite.h
net: switch memcpy_fromiovec()/memcpy_fromiovecend() users to copy_from_iter()
2015-02-04 01:34:15 -05:00
vsock_addr.h
VSOCK: Move af_vsock.h and vsock_addr.h to include/net
2013-07-27 22:14:06 -07:00
vxlan.h
vxlan: fix hlist corruption
2017-07-21 07:42:18 +02:00
wext.h
wext.h: Remove extern from function prototypes
2013-09-23 16:29:40 -04:00
wimax.h
net: treewide: Fix typo found in DocBook/networking.xml
2014-09-05 17:35:28 -07:00
x25.h
x25.h: Remove extern from function prototypes
2013-09-23 16:29:41 -04:00
x25device.h
…
xfrm.h
xfrm: fix stack access out of bounds with CONFIG_XFRM_SUB_POLICY
2017-07-05 14:40:28 +02:00