Eric Dumazet 2b19585012 tcp: add tp->dup_ack_counter ... In commit 86de5921a3 ("tcp: defer SACK compression after DupThresh") I added a TCP_FASTRETRANS_THRESH bias to tp->compressed_ack in order to enable sack compression only after 3 dupacks. Since we plan to relax this rule for flows that involve stacks not requiring this old rule, this patch adds a distinct tp->dup_ack_counter. This means the TCP_FASTRETRANS_THRESH value is now used in a single location that a future patch can adjust: if (tp->dup_ack_counter < TCP_FASTRETRANS_THRESH) { tp->dup_ack_counter++; goto send_now; } This patch also introduces tcp_sack_compress_send_ack() helper to ease following patch comprehension. This patch refines LINUX_MIB_TCPACKCOMPRESSED to not count the acks that we had to send if the timer expires or tcp_sack_compress_send_ack() is sending an ack. 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: add tp->dup_ack_counter	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
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
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