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62d9f1a694
linux/net
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Pengcheng Yang 62d9f1a694 tcp: fix TLP timer not set when CA_STATE changes from DISORDER to OPEN 
Upon receiving a cumulative ACK that changes the congestion state from
Disorder to Open, the TLP timer is not set. If the sender is app-limited,
it can only wait for the RTO timer to expire and retransmit.

The reason for this is that the TLP timer is set before the congestion
state changes in tcp_ack(), so we delay the time point of calling
tcp_set_xmit_timer() until after tcp_fastretrans_alert() returns and
remove the FLAG_SET_XMIT_TIMER from ack_flag when the RACK reorder timer
is set.

This commit has two additional benefits:
1) Make sure to reset RTO according to RFC6298 when receiving ACK, to
avoid spurious RTO caused by RTO timer early expires.
2) Reduce the xmit timer reschedule once per ACK when the RACK reorder
timer is set.

Fixes: df92c8394e ("tcp: fix xmit timer to only be reset if data ACKed/SACKed")
Link: https://lore.kernel.org/netdev/1611311242-6675-1-git-send-email-yangpc@wangsu.com
Signed-off-by: Pengcheng Yang <yangpc@wangsu.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/1611464834-23030-1-git-send-email-yangpc@wangsu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-23 21:33:01 -08:00
..
6lowpan
9p 9p for 5.11-rc1 2020-12-21 10:28:02 -08:00
802
8021q net: make free_netdev() more lenient with unregistering devices 2021-01-08 19:27:41 -08:00
appletalk net: appletalk: fix kerneldoc warnings 2020-10-30 11:48:17 -07:00
atm atm: nicstar: Replace in_interrupt() usage 2020-11-18 16:43:55 -08:00
ax25
batman-adv batman-adv: Drop unused soft-interface.h include in fragmentation.c 2020-12-04 08:41:16 +01:00
bluetooth Bluetooth: Increment management interface revision 2020-12-07 17:02:00 +02:00
bpf bpf: Reject too big ctx_size_in for raw_tp test run 2021-01-13 19:31:43 -08:00
bpfilter Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH" 2020-10-15 12:33:24 -07:00
bridge net: mrp: move struct definitions out of uapi 2021-01-23 12:38:42 -08:00
caif caif: Remove duplicate macro SRVL_CTRL_PKT_SIZE 2020-09-05 15:57:05 -07:00
can can: isotp: isotp_getname(): fix kernel information leak 2021-01-13 22:15:13 +01:00
ceph libceph: align session_key and con_secret to 16 bytes 2020-12-28 20:34:33 +01:00
core net: Disable NETIF_F_HW_TLS_RX when RXCSUM is disabled 2021-01-19 15:58:05 -08:00
dcb net: dcb: Accept RTM_GETDCB messages carrying set-like DCB commands 2021-01-12 15:55:21 -08:00
dccp selinux/stable-5.11 PR 20201214 2020-12-16 11:01:04 -08:00
decnet treewide: rename nla_strlcpy to nla_strscpy. 2020-11-16 08:08:54 -08:00
dns_resolver
dsa net: dsa: clear devlink port type before unregistering slave netdevs 2021-01-12 18:48:50 -08:00
ethernet net: datagram: fix some kernel-doc markups 2020-11-17 14:15:03 -08:00
ethtool ethtool: fix error paths in ethnl_set_channels() 2020-12-16 13:27:17 -08:00
hsr genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
ieee802154 treewide: rename nla_strlcpy to nla_strscpy. 2020-11-16 08:08:54 -08:00
ife
ipv4 tcp: fix TLP timer not set when CA_STATE changes from DISORDER to OPEN 2021-01-23 21:33:01 -08:00
ipv6 ipv6: set multicast flag on the multicast route 2021-01-18 19:52:37 -08:00
iucv net/af_iucv: use DECLARE_SOCKADDR to cast from sockaddr 2020-12-08 15:56:53 -08:00
kcm
key af_key: relax availability checks for skb size calculation 2021-01-04 10:05:50 +01:00
l2tp lsm,selinux: pass flowi_common instead of flowi to the LSM hooks 2020-11-23 18:36:21 -05:00
l3mdev net: l3mdev: Fix kerneldoc warning 2020-10-30 11:43:42 -07:00
lapb net: lapb: Decrease the refcount of "struct lapb_cb" in lapb_device_event 2021-01-04 13:42:41 -08:00
llc net: llc: Fix kerneldoc warnings 2020-10-30 11:34:09 -07:00
mac80211 mac80211: check if atf has been disabled in __ieee80211_schedule_txq 2021-01-14 22:27:38 +01:00
mac802154 net: mac802154: convert tasklets to use new tasklet_setup() API 2020-11-07 10:40:56 -08:00
mpls mpls: drop skb's dst in mpls_forward() 2020-11-03 12:55:53 -08:00
mptcp mptcp: fix locking in mptcp_disconnect() 2021-01-14 11:25:21 -08:00
ncsi net/ncsi: Use real net-device for response handler 2020-12-23 12:22:23 -08:00
netfilter netfilter: nf_nat: Fix memleak in nf_nat_init 2021-01-11 00:34:11 +01:00
netlabel Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-11-19 19:08:46 -08:00
netlink netlink: export policy in extended ACK 2020-10-09 20:22:32 -07:00
netrom treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nfc NFC: fix resource leak when target index is invalid 2021-01-23 13:34:35 -08:00
nsh
openvswitch net: openvswitch: fix TTL decrement exception action execution 2020-12-14 17:18:25 -08:00
packet net: af_packet: fix procfs header for 64-bit pointers 2020-12-18 12:17:23 -08:00
phonet treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
psample genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
qrtr net: qrtr: fix null-ptr-deref in qrtr_ns_remove 2021-01-05 16:50:09 -08:00
rds rds: stop using dmapool 2020-11-17 15:22:06 -04:00
rfkill rfkill: add a reason to the HW rfkill state 2020-12-11 12:47:17 +01:00
rose rose: Fix Null pointer dereference in rose_send_frame() 2020-11-20 10:04:58 -08:00
rxrpc rxrpc: Call state should be read with READ_ONCE() under some circumstances 2021-01-13 10:38:20 -08:00
sched net_sched: avoid shift-out-of-bounds in tcindex_set_parms() 2021-01-15 18:11:10 -08:00
sctp sctp: Fix some typo 2020-11-23 17:44:11 -08:00
smc net/smc: use memcpy instead of snprintf to avoid out of bounds read 2021-01-12 20:22:01 -08:00
strparser
sunrpc Fixes: 2021-01-19 13:01:50 -08:00
switchdev net: switchdev: Fixed kerneldoc warning 2020-09-23 17:46:31 -07:00
tipc net: tip: fix a couple kernel-doc markups 2021-01-14 10:30:24 -08:00
tls net: fix proc_fs init handling in af_packet and tls 2020-12-14 19:39:30 -08:00
unix networking changes for the 5.10 merge window 2020-10-15 18:42:13 -07:00
vmw_vsock af_vsock: Assign the vsock transport considering the vsock address flags 2020-12-14 19:33:39 -08:00
wireless cfg80211: Save the regulatory domain with a lock 2021-01-08 21:03:27 +01:00
x25 net: x25: Remove unimplemented X.25-over-LLC code stubs 2020-12-12 17:15:33 -08:00
xdp xsk: Clear pool even for inactive queues 2021-01-19 22:47:04 +01:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec 2021-01-21 11:05:10 -08:00
compat.c iov_iter: transparently handle compat iovecs in import_iovec 2020-10-03 00:02:13 -04:00
devres.c
Kconfig wimax: move out to staging 2020-10-29 19:27:45 +01:00
Makefile wimax: move out to staging 2020-10-29 19:27:45 +01:00
socket.c for-5.11/io_uring-2020-12-14 2020-12-16 12:44:05 -08:00
sysctl_net.c