Eric Dumazet d265655ae4 tcp: lack of available data can also cause TSO defer ... commit f9bfe4e6a9 upstream. tcp_tso_should_defer() can return true in three different cases : 1) We are cwnd-limited 2) We are rwnd-limited 3) We are application limited. Neal pointed out that my recent fix went too far, since it assumed that if we were not in 1) case, we must be rwnd-limited Fix this by properly populating the is_cwnd_limited and is_rwnd_limited booleans. After this change, we can finally move the silly check for FIN flag only for the application-limited case. The same move for EOR bit will be handled in net-next, since commit 1c09f7d073 ("tcp: do not try to defer skbs with eor mark (MSG_EOR)") is scheduled for linux-4.21 Tested by running 200 concurrent netperf -t TCP_RR -- -r 60000,100 and checking none of them was rwnd_limited in the chrono_stat output from "ss -ti" command. Fixes: 41727549de ("tcp: Do not underestimate rwnd_limited") Signed-off-by: Eric Dumazet <edumazet@google.com> Suggested-by: Neal Cardwell <ncardwell@google.com> Reviewed-by: Neal Cardwell <ncardwell@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Reviewed-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-12-17 09:24:42 +01:00
..
6lowpan	6lowpan: iphc: reset mac_header after decompress to fix panic	2018-07-06 12:32:12 +02:00
9p	9p: clear dangling pointers in p9stat_free	2018-11-21 09:19:12 +01:00
802
8021q	net: remove blank lines at end of file	2018-07-24 14:10:43 -07:00
appletalk	Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL	2018-06-28 10:40:47 -07:00
atm	Revert "net: simplify sock_poll_wait"	2018-11-04 14:50:51 +01:00
ax25	ax25: remove blank line at EOF	2018-07-24 14:10:42 -07:00
batman-adv	batman-adv: Expand merged fragment buffer for full packet	2018-12-13 09:16:10 +01:00
bluetooth	Bluetooth: SMP: fix crash in unpairing	2018-09-26 12:39:32 +03:00
bpf	bpf/test_run: support cgroup local storage	2018-08-03 00:47:32 +02:00
bpfilter	net: bpfilter: use get_pid_task instead of pid_task	2018-10-17 22:03:40 -07:00
bridge	net: bridge: remove ipv6 zero address check in mcast queries	2018-11-04 14:50:54 +01:00
caif	Revert "net: simplify sock_poll_wait"	2018-11-04 14:50:51 +01:00
can	can: raw: check for CAN FD capable netdev in raw_sendmsg()	2018-12-01 09:37:30 +01:00
ceph	libceph: fall back to sendmsg for slab pages	2018-11-27 16:13:11 +01:00
core	net: fix XPS static_key accounting	2018-12-17 09:24:29 +01:00
dcb	net: dcb: Add priority-to-DSCP map getters	2018-07-27 13:17:50 -07:00
dccp	Revert "net: simplify sock_poll_wait"	2018-11-04 14:50:51 +01:00
decnet	decnet: fix using plain integer as NULL warning	2018-08-09 14:11:24 -07:00
dns_resolver	net: remove blank lines at end of file	2018-07-24 14:10:43 -07:00
dsa	net: dsa: Drop GPIO includes	2018-08-27 15:24:33 -07:00
ethernet	net: Convert GRO SKB handling to list_head.	2018-06-26 11:33:04 +09:00
hsr
ieee802154	net: ieee802154: 6lowpan: remove redundant pointers 'fq' and 'net'	2018-08-06 11:21:15 +02:00
ife
ipv4	tcp: lack of available data can also cause TSO defer	2018-12-17 09:24:42 +01:00
ipv6	netfilter: nat: fix double register in masquerade modules	2018-12-17 09:24:37 +01:00
iucv	Revert "net: simplify sock_poll_wait"	2018-11-04 14:50:51 +01:00
kcm	Revert "kcm: remove any offset before parsing messages"	2018-09-17 18:43:42 -07:00
key	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next	2018-07-27 09:33:37 -07:00
l2tp	l2tp: fix a sock refcnt leak in l2tp_tunnel_register	2018-11-23 08:17:05 +01:00
l3mdev
lapb
llc	llc: do not use sk_eat_skb()	2018-12-01 09:37:27 +01:00
mac80211	mac80211: ignore NullFunc frames in the duplicate detection	2018-12-13 09:16:23 +01:00
mac802154	net: mac802154: tx: expand tailroom if necessary	2018-08-06 11:21:37 +02:00
mpls	mpls: allow routes on ip6gre devices	2018-09-24 12:19:27 -07:00
ncsi	net/ncsi: Fixup .dumpit message flags and ID check in Netlink handler	2018-08-22 21:39:08 -07:00
netfilter	netfilter: nf_tables: deactivate expressions in rule replecement routine	2018-12-17 09:24:38 +01:00
netlabel	netlabel: check for IPV4MASK in addrinfo_get	2018-09-21 18:58:34 -07:00
netlink	Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net	2018-08-05 13:04:31 -07:00
netrom	Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL	2018-06-28 10:40:47 -07:00
nfc	Revert "net: simplify sock_poll_wait"	2018-11-04 14:50:51 +01:00
nsh	nsh: set mac len based on inner packet	2018-07-12 16:55:29 -07:00
openvswitch	openvswitch: Fix push/pop ethernet validation	2018-11-04 14:50:52 +01:00
packet	packet: copy user buffers before orphan or clone	2018-12-05 19:31:58 +01:00
phonet	Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL	2018-06-28 10:40:47 -07:00
psample
qrtr	net: qrtr: Reset the node and port ID of broadcast messages	2018-07-05 20:20:03 +09:00
rds	rds: RDS (tcp) hangs on sendto() to unresponding address	2018-10-10 22:19:52 -07:00
rfkill	Here are quite a large number of fixes, notably:	2018-09-03 22:12:02 -07:00
rose	Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL	2018-06-28 10:40:47 -07:00
rxrpc	rxrpc: Fix lockup due to no error backoff after ack transmit error	2018-11-23 08:17:07 +01:00
sched	net: Prevent invalid access to skb->prev in __qdisc_drop_all	2018-12-17 09:24:27 +01:00
sctp	sctp: update frag_point when stream_interleave is set	2018-12-17 09:24:28 +01:00
smc	net/smc: fix smc_buf_unuse to use the lgr pointer	2018-11-04 14:50:52 +01:00
strparser	strparser: remove redundant variable 'rd_desc'	2018-08-01 10:00:06 -07:00
sunrpc	SUNRPC: Fix leak of krb5p encode pages	2018-12-13 09:16:19 +01:00
switchdev
tipc	tipc: use destination length for copy string	2018-12-08 12:59:10 +01:00
tls	tls: fix currently broken MSG_PEEK behavior	2018-09-17 08:03:09 -07:00
unix	Revert "net: simplify sock_poll_wait"	2018-11-04 14:50:51 +01:00
vmw_vsock	vsock: split dwork to avoid reinitializations	2018-08-07 12:39:13 -07:00
wimax	wimax: remove blank lines at EOF	2018-07-24 14:10:42 -07:00
wireless	cfg80211: Fix busy loop regression in ieee80211_ie_split_ric()	2018-12-13 09:16:22 +01:00
x25	x25: remove blank lines at EOF	2018-07-24 14:10:42 -07:00
xdp	xsk: do not call synchronize_net() under RCU read lock	2018-10-11 10:19:01 +02:00
xfrm	xfrm: policy: use hlist rcu variants on insert	2018-10-11 13:24:46 +02:00
compat.c	net: avoid unnecessary sock_flag() check when enable timestamp	2018-08-06 10:42:48 -07:00
Kconfig	net: remove blank lines at end of file	2018-07-24 14:10:43 -07:00
Makefile	bpfilter: check compiler capability in Kconfig	2018-06-28 13:36:39 +09:00
socket.c	net: socket: fix a missing-check bug	2018-10-18 16:43:06 -07:00
sysctl_net.c