Kevin Yang 8e995bf14f tcp_bbr: apply PROBE_RTT cwnd cap even if acked==0 ... This commit fixes a corner case where TCP BBR would enter PROBE_RTT mode but not reduce its cwnd. If a TCP receiver ACKed less than one full segment, the number of delivered/acked packets was 0, so that bbr_set_cwnd() would short-circuit and exit early, without cutting cwnd to the value we want for PROBE_RTT. The fix is to instead make sure that even when 0 full packets are ACKed, we do apply all the appropriate caps, including the cap that applies in PROBE_RTT mode. Fixes: 0f8782ea14 ("tcp_bbr: add BBR congestion control") Signed-off-by: Kevin Yang <yyd@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Reviewed-by: Yuchung Cheng <ycheng@google.com> Reviewed-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2018-08-22 21:45:32 -07:00
..
bpfilter	bpfilter: remove trailing newline	2018-07-24 14:10:42 -07:00
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next	2018-07-20 22:28:28 -07:00
af_inet.c	net: ipv4: Control SKB reprioritization after forwarding	2018-08-01 09:52:30 -07:00
ah4.c
arp.c
cipso_ipv4.c
datagram.c
devinet.c	route: add support for directed broadcast forwarding	2018-07-29 12:37:06 -07:00
esp4_offload.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next	2018-07-27 09:33:37 -07:00
esp4.c
fib_frontend.c	ipv4: remove BUG_ON() from fib_compute_spec_dst	2018-07-28 19:06:12 -07:00
fib_lookup.h
fib_notifier.c
fib_rules.c
fib_semantics.c	net: metrics: add proper netlink validation	2018-06-05 12:29:43 -04:00
fib_trie.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2018-06-06 18:39:49 -07:00
fou.c	Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net	2018-07-03 10:29:26 +09:00
gre_demux.c
gre_offload.c	Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net	2018-07-03 10:29:26 +09:00
icmp.c	ipv4: ipcm_cookie initializers	2018-07-07 10:58:49 +09:00
igmp.c	Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net	2018-08-02 10:55:32 -07:00
inet_connection_sock.c	bpf: Introduce BPF_PROG_TYPE_SK_REUSEPORT	2018-08-11 01:58:46 +02:00
inet_diag.c
inet_fragment.c	ip: process in-order fragments efficiently	2018-08-11 17:54:18 -07:00
inet_hashtables.c	bpf: Enable BPF_PROG_TYPE_SK_REUSEPORT bpf prog in reuseport selection	2018-08-11 01:58:46 +02:00
inet_timewait_sock.c
inetpeer.c
ip_forward.c	net: ipv4: Control SKB reprioritization after forwarding	2018-08-01 09:52:30 -07:00
ip_fragment.c	ip: process in-order fragments efficiently	2018-08-11 17:54:18 -07:00
ip_gre.c	ip_gre: remove redundant variables t_hlen	2018-08-01 09:58:15 -07:00
ip_input.c	net: ipv4: fix listify ip_rcv_finish in case of forwarding	2018-07-12 16:40:19 -07:00
ip_options.c
ip_output.c	Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net	2018-07-24 19:21:58 -07:00
ip_sockglue.c	ip: in cmsg IP(V6)_ORIGDSTADDR call pskb_may_pull	2018-07-24 16:35:58 -07:00
ip_tunnel_core.c
ip_tunnel.c	ip_tunnel: Fix name string concatenate in __ip_tunnel_create()	2018-06-07 16:27:16 -04:00
ip_vti.c	ip_vti: fix a null pointer deferrence when create vti fallback tunnel	2018-08-19 11:26:39 -07:00
ipcomp.c
ipconfig.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2018-06-06 18:39:49 -07:00
ipip.c
ipmr_base.c	rhashtable: split rhashtable.h	2018-06-22 13:43:27 +09:00
ipmr.c	net: ipmr: add support for passing full packet on wrong vif	2018-07-13 14:21:16 -07:00
Kconfig	net: remove blank lines at end of file	2018-07-24 14:10:43 -07:00
Makefile	net: remove blank lines at end of file	2018-07-24 14:10:43 -07:00
metrics.c	net: metrics: add proper netlink validation	2018-06-05 12:29:43 -04:00
netfilter.c	netfilter: utils: move nf_ip_checksum* from ipv4 to utils	2018-07-16 17:51:48 +02:00
netlink.c	ipv4: support sport, dport and ip_proto in RTM_GETROUTE	2018-05-23 15:14:12 -04:00
ping.c	net: add helpers checking if socket can be bound to nonlocal address	2018-08-01 09:50:04 -07:00
proc.c	ip: discard IPv4 datagrams with overlapping segments.	2018-08-05 17:16:46 -07:00
protocol.c
raw_diag.c
raw.c	ip: remove tx_flags from ipcm_cookie and use same logic for v4 and v6	2018-07-07 10:58:49 +09:00
route.c	route: add support for directed broadcast forwarding	2018-07-29 12:37:06 -07:00
syncookies.c
sysctl_net_ipv4.c	net: ipv4: Notify about changes to ip_forward_update_priority	2018-08-01 09:52:30 -07:00
tcp_bbr.c	tcp_bbr: apply PROBE_RTT cwnd cap even if acked==0	2018-08-22 21:45:32 -07:00
tcp_bic.c
tcp_cdg.c
tcp_cong.c
tcp_cubic.c
tcp_dctcp.c	tcp: avoid resetting ACK timer in DCTCP	2018-08-11 11:31:35 -07:00
tcp_diag.c
tcp_fastopen.c
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c
tcp_input.c	tcp: avoid resetting ACK timer upon receiving packet with ECN CWR flag	2018-08-11 11:31:35 -07:00
tcp_ipv4.c	ipv4: tcp: send zero IPID for RST and ACK sent in SYN-RECV and TIME-WAIT state	2018-08-22 21:42:58 -07:00
tcp_lp.c
tcp_metrics.c
tcp_minisocks.c	tcp: use monotonic timestamps for PAWS	2018-07-12 14:50:40 -07:00
tcp_nv.c
tcp_offload.c	tcp: Don't coalesce decrypted and encrypted SKBs	2018-07-16 00:12:09 -07:00
tcp_output.c	tcp: remove set but not used variable 'skb_size'	2018-08-01 09:57:09 -07:00
tcp_rate.c	tcp: expose both send and receive intervals for rate sample	2018-07-11 23:01:56 -07:00
tcp_recovery.c	tcp: add stat of data packet reordering events	2018-08-01 09:56:10 -07:00
tcp_scalable.c
tcp_timer.c	tcp: make function tcp_retransmit_stamp() static	2018-07-25 16:35:45 -07:00
tcp_ulp.c	tcp, ulp: fix leftover icsk_ulp_ops preventing sock from reattach	2018-08-16 14:58:08 -07:00
tcp_vegas.c
tcp_vegas.h
tcp_veno.c
tcp_westwood.c
tcp_yeah.c
tcp.c	tcp: remove unneeded variable 'err'	2018-08-03 16:52:07 -07:00
tunnel4.c
udp_diag.c	udp: fix rx queue len reported by diag and proc interface	2018-06-08 19:55:15 -04:00
udp_impl.h
udp_offload.c	Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net	2018-07-03 10:29:26 +09:00
udp_tunnel.c
udp.c	bpf: Enable BPF_PROG_TYPE_SK_REUSEPORT bpf prog in reuseport selection	2018-08-11 01:58:46 +02:00
udplite.c
xfrm4_input.c
xfrm4_mode_beet.c
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c
xfrm4_output.c
xfrm4_policy.c
xfrm4_protocol.c
xfrm4_state.c
xfrm4_tunnel.c