Eric Dumazet f9bfe4e6a9 tcp: lack of available data can also cause TSO defer ... 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>		2018-12-07 16:18:22 -08:00
..
6lowpan	6lowpan: iphc: reset mac_header after decompress to fix panic	2018-07-06 12:32:12 +02:00
9p	Merge branch 'work.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-11-03 10:35:52 -07:00
802	…
8021q	netpoll: allow cleanup to be synchronous	2018-10-19 17:01:43 -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"	2018-10-23 10:57:06 -07:00
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	2018-11-12 10:41:29 +01:00
bluetooth	Merge branch 'work.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-11-01 19:58:52 -07:00
bpf	bpf: refactor bpf_test_run() to separate own failures and test program result	2018-12-01 12:33:58 -08:00
bpfilter	net: bpfilter: Set user mode helper's command line	2018-10-22 19:37:36 -07:00
bridge	net: bridge: fix vlan stats use-after-free on destruction	2018-11-17 21:38:44 -08:00
caif	Revert "net: simplify sock_poll_wait"	2018-10-23 10:57:06 -07:00
can	can: raw: check for CAN FD capable netdev in raw_sendmsg()	2018-11-09 17:19:34 +01:00
ceph	libceph: fall back to sendmsg for slab pages	2018-11-19 17:59:47 +01:00
core	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf	2018-12-05 16:30:30 -08:00
dcb	net: dcb: Add priority-to-DSCP map getters	2018-07-27 13:17:50 -07:00
dccp	Revert "net: simplify sock_poll_wait"	2018-10-23 10:57:06 -07:00
decnet	decnet: Remove unnecessary check for dev->name	2018-09-21 19:48:36 -07:00
dns_resolver	dns: Allow the dns resolver to retrieve a server set	2018-10-04 09:40:52 -07:00
dsa	net: dsa: Fix tagging attribute location	2018-11-30 17:17:39 -08:00
ethernet	net: Convert GRO SKB handling to list_head.	2018-06-26 11:33:04 +09:00
hsr	…
ieee802154	net/ipfrag: let ip[6]frag_high_thresh in ns be higher than in init_net	2018-09-21 19:45:52 -07:00
ife	…
ipv4	tcp: lack of available data can also cause TSO defer	2018-12-07 16:18:22 -08:00
ipv6	ipv6: sr: properly initialize flowi6 prior passing to ip6_route_output	2018-12-07 12:22:39 -08:00
iucv	Revert "net: simplify sock_poll_wait"	2018-10-23 10:57:06 -07:00
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	2018-11-14 22:49:31 -08:00
l3mdev	…
lapb	…
llc	llc: do not use sk_eat_skb()	2018-10-22 19:59:20 -07:00
mac80211	mac80211: ignore NullFunc frames in the duplicate detection	2018-12-05 12:34:49 +01:00
mac802154	mac802154: Remove VLA usage of skcipher	2018-09-28 12:46:07 +08:00
mpls	net/mpls: Handle kernel side filtering of route dumps	2018-10-16 00:14:07 -07:00
ncsi	net/ncsi: Add NCSI Broadcom OEM command	2018-10-17 22:14:54 -07:00
netfilter	netfilter: nf_tables: deactivate expressions in rule replecement routine	2018-11-28 10:56:40 +01:00
netlabel	netlabel: check for IPV4MASK in addrinfo_get	2018-09-21 18:58:34 -07:00
netlink	netlink: Add answer_flags to netlink_callback	2018-10-16 00:13:12 -07:00
netrom	Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL	2018-06-28 10:40:47 -07:00
nfc	Merge branch 'work.tty-ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-10-24 14:43:41 +01:00
nsh	nsh: set mac len based on inner packet	2018-07-12 16:55:29 -07:00
openvswitch	openvswitch: fix spelling mistake "execeeds" -> "exceeds"	2018-11-30 13:18:09 -08:00
packet	packet: copy user buffers before orphan or clone	2018-11-23 11:08:03 -08:00
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	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-10-12 21:38:46 -07:00
rfkill	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-09-04 21:33:03 -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 life check	2018-11-15 11:35:40 -08:00
sched	net/sched: act_police: fix memory leak in case of invalid control action	2018-11-30 17:14:06 -08:00
sctp	sctp: frag_point sanity check	2018-12-05 20:37:52 -08:00
smc	net/smc: use after free fix in smc_wr_tx_put_slot()	2018-11-21 16:14:56 -08:00
strparser	bpf, sockmap: convert to generic sk_msg interface	2018-10-15 12:23:19 -07:00
sunrpc	NFS client bugfixes for Linux 4.20	2018-11-15 10:59:37 -06:00
switchdev	…
tipc	tipc: fix lockdep warning during node delete	2018-11-27 16:30:39 -08:00
tls	Merge branch 'work.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-11-01 19:58:52 -07:00
unix	Revert "net: simplify sock_poll_wait"	2018-10-23 10:57:06 -07:00
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()	2018-12-05 12:51:29 +01:00
x25	net/x25: handle call collisions	2018-11-29 14:25:36 -08:00
xdp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-10-19 11:03:06 -07:00
xfrm	Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-11-03 18:25:17 -07:00
Kconfig	bpf, sockmap: convert to generic sk_msg interface	2018-10-15 12:23:19 -07:00
Makefile	bpfilter: check compiler capability in Kconfig	2018-06-28 13:36:39 +09:00
compat.c	y2038: socket: Change recvmmsg to use __kernel_timespec	2018-08-29 15:42:24 +02:00
socket.c	socket: do a generic_file_splice_read when proto_ops has no splice_read	2018-11-17 21:34:11 -08:00
sysctl_net.c	…