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Cong Wang db4192a754 tcp: read multiple skbs in tcp_read_skb() 
Before we switched to ->read_skb(), ->read_sock() was passed with
desc.count=1, which technically indicates we only read one skb per
->sk_data_ready() call. However, for TCP, this is not true.

TCP at least has sk_rcvlowat which intentionally holds skb's in
receive queue until this watermark is reached. This means when
->sk_data_ready() is invoked there could be multiple skb's in the
queue, therefore we have to read multiple skbs in tcp_read_skb()
instead of one.

Fixes: 965b57b469a5 ("net: Introduce a new proto_ops ->read_skb()")
Reported-by: Peilin Ye <peilin.ye@bytedance.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: Jakub Sitnicki <jakub@cloudflare.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Link: https://lore.kernel.org/r/20220912173553.235838-1-xiyou.wangcong@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-20 14:47:21 +02:00
..
bpfilter
net: Revert "net: optimize the sockptr_t for unified kernel/user address spaces"
2020-08-10 12:06:44 -07:00
netfilter
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-07-21 13:03:39 -07:00
af_inet.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-07-21 13:03:39 -07:00
ah4.c
net: ipv4: fix clang -Wformat warnings
2022-07-12 12:58:53 +02:00
arp.c
net: ipv4: new arp_accept option to accept garp only if in-network
2022-07-15 18:55:49 -07:00
bpf_tcp_ca.c
bpf: Switch to new kfunc flags infrastructure
2022-07-21 20:59:42 -07:00
cipso_ipv4.c
cipso: Fix data-races around sysctl.
2022-07-08 12:10:33 +01:00
datagram.c
ipv4: Avoid using RTO_ONLINK with ip_route_connect().
2022-04-22 13:06:03 +01:00
devinet.c
net: Fix data-races around sysctl_devconf_inherit_init_net.
2022-08-24 13:46:58 +01:00
esp4_offload.c
net: Fix esp GSO on inter address family tunnels.
2022-03-07 13:14:04 +01:00
esp4.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-07-21 13:03:39 -07:00
fib_frontend.c
ip: fix triggering of 'icmp redirect'
2022-08-31 19:50:36 -07:00
fib_lookup.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-02-17 11:44:20 -08:00
fib_notifier.c
net: ipv4: remove superfluous header files from fib_notifier.c
2021-09-28 17:32:56 -07:00
fib_rules.c
ipv4: remove unnecessary type castings
2022-04-30 15:12:58 +01:00
fib_semantics.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-07-21 13:03:39 -07:00
fib_trie.c
ipv4: Fix data-races around sysctl_fib_notify_on_flag_change.
2022-07-25 12:42:10 +01:00
fou.c
fou: Remove XRFM from NET_FOU Kconfig
2022-04-12 14:56:33 -07:00
gre_demux.c
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
gre_offload.c
gro: remove rcu_read_lock/rcu_read_unlock from gro_complete handlers
2021-11-24 17:21:42 -08:00
icmp.c
ip: Fix data-races around sysctl_ip_no_pmtu_disc.
2022-07-15 11:49:55 +01:00
igmp.c
igmp: Fix data-races around sysctl_igmp_qrv.
2022-07-18 12:21:54 +01:00
inet_connection_sock.c
tcp: Fix data-races around sysctl_tcp_syn(ack)?_retries.
2022-07-18 12:21:54 +01:00
inet_diag.c
net: inet: Retire port only listening_hash
2022-05-12 16:52:18 -07:00
inet_fragment.c
ipv4: remove unnecessary type castings
2022-04-30 15:12:58 +01:00
inet_hashtables.c
Revert "net: Add a second bind table hashed by port and address"
2022-06-16 11:07:59 -07:00
inet_timewait_sock.c
tcp: Fix a data-race around sysctl_max_tw_buckets.
2022-07-13 12:56:49 +01:00
inetpeer.c
inetpeer: Fix data-races around sysctl.
2022-07-08 12:10:33 +01:00
ip_forward.c
ip: Fix data-races around sysctl_ip_fwd_update_priority.
2022-07-15 11:49:55 +01:00
ip_fragment.c
net: ip: Handle delivery_time in ip defrag
2022-03-03 14:38:48 +00:00
ip_gre.c
ip_tunnel: Respect tunnel key's "flow_flags" in IP tunnels
2022-08-18 21:18:28 +02:00
ip_input.c
tcp/udp: Make early_demux back namespacified.
2022-07-15 18:50:35 -07:00
ip_options.c
ipv4: drop fragmentation code from ip_options_build()
2022-01-29 17:53:07 +00:00
ip_output.c
net: Fix data-races around sysctl_[rw]mem_(max|default).
2022-08-24 13:46:57 +01:00
ip_sockglue.c
net: Fix data-races around sysctl_optmem_max.
2022-08-24 13:46:57 +01:00
ip_tunnel_core.c
tunnels: do not assume mac header is set in skb_tunnel_check_pmtu()
2022-06-27 11:50:30 +01:00
ip_tunnel.c
ip_tunnel: Respect tunnel key's "flow_flags" in IP tunnels
2022-08-18 21:18:28 +02:00
ip_vti.c
ip: use dev_addr_set() in tunnels
2021-10-13 09:41:37 -07:00
ipcomp.c
Networking changes for 5.14.
2021-06-30 15:51:09 -07:00
ipconfig.c
Driver core / kernfs changes for 6.0-rc1
2022-08-04 11:31:20 -07:00
ipip.c
ip: use dev_addr_set() in tunnels
2021-10-13 09:41:37 -07:00
ipmr_base.c
ipmr: adopt rcu_read_lock() in mr_dump()
2022-06-24 11:34:38 +01:00
ipmr.c
ipmr: fix a lockdep splat in ipmr_rtm_dumplink()
2022-06-27 12:01:01 +01:00
Kconfig
fou: Remove XRFM from NET_FOU Kconfig
2022-04-12 14:56:33 -07:00
Makefile
bpf: Clean up sockmap related Kconfigs
2021-02-26 12:28:03 -08:00
metrics.c
treewide: rename nla_strlcpy to nla_strscpy.
2020-11-16 08:08:54 -08:00
netfilter.c
netfilter: Use l3mdev flow key when re-routing mangled packets
2022-05-16 13:03:29 +02:00
netlink.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
nexthop.c
nexthop: Fix data-races around nexthop_compat_mode.
2022-07-13 12:56:50 +01:00
ping.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-06-23 12:33:24 -07:00
proc.c
ip: Fix data-races around sysctl_ip_default_ttl.
2022-07-15 11:49:55 +01:00
protocol.c
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
raw_diag.c
raw: complete rcu conversion
2022-06-21 11:38:29 +02:00
raw.c
raw: fix a typo in raw_icmp_error()
2022-06-24 22:48:33 -07:00
route.c
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
2022-07-25 13:25:39 +01:00
syncookies.c
tcp: Fix data-races around sysctl knobs related to SYN option.
2022-07-20 10:14:49 +01:00
sysctl_net_ipv4.c
ip: Fix data-races around sysctl_ip_prot_sock.
2022-07-20 10:14:49 +01:00
tcp_bbr.c
bpf: Switch to new kfunc flags infrastructure
2022-07-21 20:59:42 -07:00
tcp_bic.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_bpf.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-06-23 12:33:24 -07:00
tcp_cdg.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_cong.c
tcp: Add tracepoint for tcp_set_ca_state
2022-04-07 20:33:15 -07:00
tcp_cubic.c
bpf: Switch to new kfunc flags infrastructure
2022-07-21 20:59:42 -07:00
tcp_dctcp.c
bpf: Switch to new kfunc flags infrastructure
2022-07-21 20:59:42 -07:00
tcp_dctcp.h
tcp: refactor DCTCP ECN ACK handling
2018-10-10 22:26:00 -07:00
tcp_diag.c
inet_diag: Move the INET_DIAG_REQ_BYTECODE nlattr to cb->data
2020-02-27 18:50:19 -08:00
tcp_fastopen.c
tcp: Fix data-races around sysctl_tcp_fastopen_blackhole_timeout.
2022-07-18 12:21:54 +01:00
tcp_highspeed.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_htcp.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_hybla.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_illinois.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_input.c
tcp: fix early ETIMEDOUT after spurious non-SACK RTO
2022-09-06 11:06:31 +02:00
tcp_ipv4.c
tcp: make global challenge ack rate limitation per net-ns and default disabled
2022-08-31 19:56:48 -07:00
tcp_lp.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_metrics.c
tcp: Fix data-races around sysctl_tcp_no_ssthresh_metrics_save.
2022-07-22 12:06:17 +01:00
tcp_minisocks.c
tcp: Fix a data-race around sysctl_tcp_abort_on_overflow.
2022-07-20 10:14:50 +01:00
tcp_nv.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_offload.c
net: move gro definitions to include/net/gro.h
2021-11-16 13:16:54 +00:00
tcp_output.c
net: Fix data-races around sysctl_[rw]mem_(max|default).
2022-08-24 13:46:57 +01:00
tcp_rate.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-04-28 13:02:01 -07:00
tcp_recovery.c
tcp: Fix data-races around sysctl_tcp_recovery.
2022-07-20 10:14:50 +01:00
tcp_scalable.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_timer.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-07-21 13:03:39 -07:00
tcp_ulp.c
bpf: sockmap: Only check ULP for TCP sockets
2020-03-09 22:34:58 +01:00
tcp_vegas.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_vegas.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tcp_veno.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_westwood.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_yeah.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp.c
tcp: read multiple skbs in tcp_read_skb()
2022-09-20 14:47:21 +02:00
tunnel4.c
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
udp_bpf.c
net: remove noblock parameter from recvmsg() entities
2022-04-12 15:00:25 +02:00
udp_diag.c
net: Use nlmsg_unicast() instead of netlink_unicast()
2021-07-13 09:28:29 -07:00
udp_impl.h
net: remove noblock parameter from recvmsg() entities
2022-04-12 15:00:25 +02:00
udp_offload.c
gro: remove rcu_read_lock/rcu_read_unlock from gro_complete handlers
2021-11-24 17:21:42 -08:00
udp_tunnel_core.c
rxrpc: Fix ICMP/ICMP6 error handling
2022-09-01 11:42:12 +01:00
udp_tunnel_nic.c
udp_tunnel: Fix end of loop test in udp_tunnel_nic_unregister()
2022-02-23 12:35:00 +00:00
udp_tunnel_stub.c
udp_tunnel: add central NIC RX port offload infrastructure
2020-07-10 13:54:00 -07:00
udp.c
rxrpc: Fix ICMP/ICMP6 error handling
2022-09-01 11:42:12 +01:00
udplite.c
net: add per_cpu_fw_alloc field to struct proto
2022-06-10 16:21:26 -07:00
xfrm4_input.c
xfrm: state: remove extract_input indirection from xfrm_state_afinfo
2020-05-06 09:40:08 +02:00
xfrm4_output.c
xfrm: fix unused variable warning if CONFIG_NETFILTER=n
2020-05-11 15:12:27 +02:00
xfrm4_policy.c
net: rename reference+tracking helpers
2022-06-09 21:52:55 -07:00
xfrm4_protocol.c
net: xfrm: unexport __init-annotated xfrm4_protocol_init()
2022-06-08 10:10:13 -07:00
xfrm4_state.c
xfrm: remove output_finish indirection from xfrm_state_afinfo
2020-05-06 09:40:08 +02:00
xfrm4_tunnel.c
net/ipv4/xfrm4_tunnel.c: remove superfluous header files from xfrm4_tunnel.c
2021-09-23 10:10:00 +02:00