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ccd0628fca
linux/net
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Eric Dumazet ccd0628fca tcp: tcp_sack_new_ofo_skb() should be more conservative 
Currently, tcp_sack_new_ofo_skb() sends an ack if prior
acks were 'compressed', if room has to be made in tp->selective_acks[]

But there is no guarantee all four sack ranges can be included
in SACK option. As a matter of fact, when TCP timestamps option
is used, only three SACK ranges can be included.

Lets assume only two ranges can be included, and force the ack:

- When we touch more than 2 ranges in the reordering
  done if tcp_sack_extend() could be done.

- If we have at least 2 ranges when adding a new one.

This enforces that before a range is in third or fourth
position, at least one ACK packet included it in first/second
position.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 13:24:01 -07:00
..
6lowpan
9p 9pnet: allow making incomplete read requests 2020-03-27 09:29:56 +00:00
802 net: 802: psnap.c: Use built-in RCU list checking 2020-02-24 13:02:53 -08:00
8021q net: vlan: suppress "failed to kill vid" warnings 2020-02-17 14:30:54 -08:00
appletalk
atm docs: networking: convert atm.txt to ReST 2020-04-28 14:38:38 -07:00
ax25 docs: networking: convert ax25.txt to ReST 2020-04-28 14:38:38 -07:00
batman-adv batman-adv: remove unused inline function batadv_arp_change_timeout 2020-04-24 15:22:41 +02:00
bluetooth Bluetooth: Enhanced Connection Complete event belongs to LL Privacy 2020-04-16 12:43:03 +03:00
bpf bpf: Fix build warning regarding missing prototypes 2020-03-28 18:13:18 +01:00
bpfilter SPDX patches for 5.7-rc1. 2020-04-03 13:12:26 -07:00
bridge net: bridge: Add checks for enabling the STP. 2020-04-27 11:40:25 -07:00
caif net: caif: Fix use correct return type for ndo_start_xmit() 2020-04-30 12:13:07 -07:00
can
ceph docs: networking: convert dns_resolver.txt to ReST 2020-04-28 14:39:46 -07:00
core docs: networking: convert pktgen.txt to ReST 2020-04-30 12:56:37 -07:00
dcb
dccp dccp: remove unused inline function dccp_set_seqno 2020-04-25 20:42:57 -07:00
decnet docs: networking: convert decnet.txt to ReST 2020-04-28 14:39:45 -07:00
dns_resolver docs: networking: convert dns_resolver.txt to ReST 2020-04-28 14:39:46 -07:00
dsa Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-04-25 20:18:53 -07:00
ethernet net: remove eth_change_mtu 2020-01-27 11:09:31 +01:00
ethtool drivers: Remove inclusion of vermagic header 2020-04-21 13:27:37 -07:00
hsr net: hsr: remove unused inline functions 2020-04-29 12:00:35 -07:00
ieee802154 nl802154: add missing attribute validation for dev_type 2020-03-03 13:28:48 -08:00
ife
ipv4 tcp: tcp_sack_new_ofo_skb() should be more conservative 2020-04-30 13:24:01 -07:00
ipv6 ila: remove unused inline function ila_addr_is_ila 2020-04-29 12:01:31 -07:00
iucv
kcm net: kcm: kcmproc.c: Fix RCU list suspicious usage warning 2020-03-16 17:14:02 -07:00
key
l2tp l2tp: Allow management of tunnels and session in user namespace 2020-04-08 14:30:46 -07:00
l3mdev
lapb docs: networking: convert lapb-module.txt to ReST 2020-04-30 12:56:35 -07:00
llc af_llc: fix if-statement empty body warning 2020-02-26 20:38:13 -08:00
mac80211 docs: networking: convert mac80211-injection.txt to ReST 2020-04-30 12:56:36 -07:00
mac802154
mpls net: add net available in build_state 2020-03-29 22:30:57 -07:00
mptcp tcp: mptcp: use mptcp receive buffer space to select rcv window 2020-04-25 20:37:52 -07:00
ncsi net/ncsi: Support for multi host mellanox card 2020-01-09 18:36:22 -08:00
netfilter docs: networking: convert tproxy.txt to ReST 2020-04-30 12:56:38 -07:00
netlabel netlabel: Kconfig: Update reference for NetLabel Tools project 2020-04-22 19:55:01 -07:00
netlink Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-25 18:58:11 -07:00
netrom net: netrom: Fix potential nr_neigh refcnt leak in nr_add_node 2020-04-18 13:09:46 -07:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
nsh
openvswitch net: openvswitch: use div_u64() for 64-by-32 divisions 2020-04-25 20:48:21 -07:00
packet net/packet: tpacket_rcv: avoid a producer race condition 2020-03-15 00:25:25 -07:00
phonet net: Remove redundant BUG_ON() check in phonet_pernet 2020-01-03 12:25:50 -08:00
psample
qrtr net: qrtr: Add tracepoint support 2020-04-22 12:55:54 -07:00
rds net/rds: Use ERR_PTR for rds_message_alloc_sgs() 2020-04-15 12:33:29 -07:00
rfkill
rose Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-01-26 10:40:21 +01:00
rxrpc docs: networking: convert rxrpc.txt to ReST 2020-04-30 12:56:38 -07:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-04-25 20:18:53 -07:00
sctp sctp: Fix SHUTDOWN CTSN Ack in the peer restart case 2020-04-22 19:27:40 -07:00
smc net/smc: remove obsolete link state DELETING 2020-04-30 12:44:34 -07:00
strparser
sunrpc svcrdma: Fix leak of svc_rdma_recv_ctxt objects 2020-04-17 12:40:38 -04:00
switchdev net: switchdev: do not propagate bridge updates across bridges 2020-02-26 20:58:33 -08:00
tipc tipc: Fix potential tipc_node refcnt leak in tipc_rcv 2020-04-18 13:24:20 -07:00
tls net/tls: fix const assignment warning 2020-04-08 14:34:02 -07:00
unix net: datagram: drop 'destructor' argument from several helpers 2020-02-28 12:12:53 -08:00
vmw_vsock Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-02-27 18:31:39 -08:00
wimax
wireless docs: networking: convert radiotap-headers.txt to ReST 2020-04-30 12:56:37 -07:00
x25 net/x25: Fix x25_neigh refcnt leak when receiving frame 2020-04-23 15:39:39 -07:00
xdp xsk: Add missing check on user supplied headroom size 2020-04-15 13:07:18 +02:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2020-03-30 10:59:20 -07:00
compat.c net: abstract out normal and compat msghdr import 2020-03-10 09:12:49 -06:00
Kconfig docs: networking: convert pktgen.txt to ReST 2020-04-30 12:56:37 -07:00
Makefile mptcp: Add MPTCP socket stubs 2020-01-24 13:44:07 +01:00
socket.c for-5.7/io_uring-2020-03-29 2020-03-30 12:18:49 -07:00
sysctl_net.c