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Neal Cardwell c7e9d72478 tcp_bbr: reset long-term bandwidth sampling on loss recovery undo 
[ Upstream commit 600647d467 ]

Fix BBR so that upon notification of a loss recovery undo BBR resets
long-term bandwidth sampling.

Under high reordering, reordering events can be interpreted as loss.
If the reordering and spurious loss estimates are high enough, this
can cause BBR to spuriously estimate that we are seeing loss rates
high enough to trigger long-term bandwidth estimation. To avoid that
problem, this commit resets long-term bandwidth sampling on loss
recovery undo events.

Signed-off-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-02 20:31:07 +01:00
..
6lowpan License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
9p net/9p: Switch to wait_event_killable() 2017-11-30 08:40:49 +00:00
802 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
8021q vlan: fix a use-after-free in vlan_device_event() 2017-11-11 19:35:32 +09:00
appletalk License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atm License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ax25 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
batman-adv
bluetooth License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bpf
bridge License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
caif License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
can License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ceph libceph: don't WARN() if user tries to add invalid key 2017-11-30 08:40:45 +00:00
core net: accept UFO datagrams from tuntap and packet 2017-12-17 15:07:58 +01:00
dcb
dccp tcp/dccp: block bh before arming time_wait timer 2017-12-17 15:07:57 +01:00
decnet License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dns_resolver
dsa net: dsa: return after vlan prepare phase 2017-11-11 15:45:09 +09:00
ethernet
hsr
ieee802154 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ife MAINTAINERS: Update Yotam's E-mail 2017-11-01 12:19:03 +09:00
ipv4 tcp_bbr: reset long-term bandwidth sampling on loss recovery undo 2018-01-02 20:31:07 +01:00
ipv6 tcp md5sig: Use skb's saddr when replying to an incoming segment 2018-01-02 20:31:07 +01:00
ipx License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
iucv
kcm fix kcm_clone() 2017-12-17 15:07:59 +01:00
key
l2tp l2tp: cleanup l2tp_tunnel_delete calls 2017-12-20 10:10:31 +01:00
l3mdev
lapb
llc License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mac80211 License cleanup: add SPDX license identifiers to some files 2017-11-02 10:04:46 -07:00
mac802154 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mpls License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ncsi
netfilter netfilter: ipvs: Fix inappropriate output of procfs 2017-12-20 10:10:25 +01:00
netlabel License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
netlink netlink: Add netns check on taps 2018-01-02 20:31:06 +01:00
netrom
nfc NFC: fix device-allocation error return 2017-11-30 08:40:55 +00:00
nsh
openvswitch net: openvswitch: datapath: fix data type in queue_gso_packets 2017-12-17 15:07:58 +01:00
packet net/packet: fix a race in packet_bind() and packet_notifier() 2017-12-17 15:07:56 +01:00
phonet License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
psample MAINTAINERS: Update Yotam's E-mail 2017-11-01 12:19:03 +09:00
qrtr qrtr: Move to postcore_initcall 2017-11-08 14:32:18 +09:00
rds RDS: Check cmsg_len before dereferencing CMSG_DATA 2018-01-02 20:31:07 +01:00
rfkill
rose
rxrpc License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sched cls_bpf: don't decrement net's refcount when offload fails 2017-12-17 15:07:59 +01:00
sctp sctp: silence warns on sctp_stream_init allocations 2017-12-25 14:26:28 +01:00
smc net/smc: use sk_rcvbuf as start for rmb creation 2017-12-14 09:53:05 +01:00
strparser strparser: Use delayed work instead of timer for msg timeout 2017-10-25 10:37:11 +09:00
sunrpc xprtrdma: Don't defer fencing an async RPC's chunks 2017-12-20 10:10:36 +01:00
switchdev
tipc tipc: call tipc_rcv() only if bearer is up in tipc_udp_recv() 2017-12-17 15:07:57 +01:00
tls tls: Use kzalloc for aead_request allocation 2017-12-14 09:53:13 +01:00
unix License cleanup: add SPDX license identifiers to some files 2017-11-02 10:04:46 -07:00
vmw_vsock License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
wimax License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
wireless License cleanup: add SPDX license identifiers to some files 2017-11-02 10:04:46 -07:00
x25 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xfrm xfrm: Copy policy family in clone_policy 2017-12-14 09:53:13 +01:00
compat.c
Kconfig
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
socket.c
sysctl_net.c