John Fastabend 6df7f764cd bpf, sockmap: Wake up polling after data copy ... When TCP stack has data ready to read sk_data_ready() is called. Sockmap overwrites this with its own handler to call into BPF verdict program. But, the original TCP socket had sock_def_readable that would additionally wake up any user space waiters with sk_wake_async(). Sockmap saved the callback when the socket was created so call the saved data ready callback and then we can wake up any epoll() logic waiting on the read. Note we call on 'copied >= 0' to account for returning 0 when a FIN is received because we need to wake up user for this as well so they can do the recvmsg() -> 0 and detect the shutdown. Fixes: 04919bed94 ("tcp: Introduce tcp_read_skb()") Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com> Link: https://lore.kernel.org/bpf/20230523025618.113937-8-john.fastabend@gmail.com		2023-05-23 16:10:35 +02:00
..
6lowpan	6lowpan: Remove redundant initialisation.	2023-03-29 08:22:52 +01:00
9p	Including fixes from netfilter.	2023-05-05 19:12:01 -07:00
802
8021q	vlan: Add MACsec offload operations for VLAN interface	2023-04-21 08:22:14 +01:00
appletalk
atm	Networking changes for 6.4.	2023-04-26 16:07:23 -07:00
ax25
batman-adv	net: vlan: introduce skb_vlan_eth_hdr()	2023-04-23 14:16:44 +01:00
bluetooth	Driver core changes for 6.4-rc1	2023-04-27 11:53:57 -07:00
bpf	bpf: add test_run support for netfilter program type	2023-04-21 11:34:50 -07:00
bpfilter
bridge	net: add vlan_get_protocol_and_depth() helper	2023-05-10 10:25:55 +01:00
caif	net: caif: Fix use-after-free in cfusbl_device_notify()	2023-03-02 22:22:07 -08:00
can	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-04-06 12:01:20 -07:00
ceph	Networking changes for 6.3.	2023-02-21 18:24:12 -08:00
core	bpf, sockmap: Wake up polling after data copy	2023-05-23 16:10:35 +02:00
dcb
dccp	netfilter: keep conntrack reference until IPsecv6 policy checks are done	2023-03-22 21:50:23 +01:00
devlink	devlink: change per-devlink netdev notifier to static one	2023-05-11 18:06:50 -07:00
dns_resolver
dsa	net: dsa: tag_ocelot: call only the relevant portion of __skb_vlan_pop() on TX	2023-04-23 14:16:45 +01:00
ethernet
ethtool	ethtool: Fix uninitialized number of lanes	2023-05-03 09:13:20 +01:00
handshake	net/handshake: Fix section mismatch in handshake_exit	2023-04-21 20:24:57 -07:00
hsr	hsr: ratelimit only when errors are printed	2023-03-16 21:11:03 -07:00
ieee802154	net: ieee802154: remove an unnecessary null pointer check	2023-03-17 09:13:53 +01:00
ife
ipv4	bpf, sockmap: TCP data stall on recv before accept	2023-05-23 16:10:28 +02:00
ipv6	erspan: get the proto with the md version for collect_md	2023-05-13 16:58:58 +01:00
iucv	net/iucv: Fix size of interrupt data	2023-03-16 17:34:40 -07:00
kcm
key	af_key: Fix heap information leak	2023-02-13 09:30:14 +00:00
l2tp	l2tp: generate correct module alias strings	2023-03-31 09:25:12 +01:00
l3mdev
lapb
llc	net: deal with most data-races in sk_wait_event()	2023-05-10 10:03:32 +01:00
mac80211	wireless-next patches for v6.4	2023-04-21 07:35:51 -07:00
mac802154	mac802154: Rename kfree_rcu() to kvfree_rcu_mightsleep()	2023-04-05 13:48:04 +00:00
mctp	mctp: remove MODULE_LICENSE in non-modules	2023-03-09 23:06:21 -08:00
mpls	net: mpls: fix stale pointer if allocation fails during device rename	2023-02-15 10:26:37 +00:00
mptcp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-04-20 16:29:51 -07:00
ncsi	net/ncsi: clear Tx enable mode when handling a Config required AEN	2023-04-28 09:35:33 +01:00
netfilter	netfilter: conntrack: fix possible bug_on with enable_hooks=1	2023-05-10 08:50:39 +02:00
netlabel
netlink	netlink: annotate accesses to nlk->cb_running	2023-05-10 09:28:38 +01:00
netrom
nfc	nfc: change order inside nfc_se_io error path	2023-03-07 13:37:05 -08:00
nsh
openvswitch	net: openvswitch: fix race on port output	2023-04-07 19:42:53 -07:00
packet	net: add vlan_get_protocol_and_depth() helper	2023-05-10 10:25:55 +01:00
phonet
psample
qrtr	net: qrtr: Fix an uninit variable access bug in qrtr_tx_resume()	2023-04-13 09:35:30 +02:00
rds	rds: rds_rm_zerocopy_callback() correct order for list_add_tail()	2023-02-13 09:33:39 +00:00
rfkill	net: rfkill-gpio: Add explicit include for of.h	2023-04-06 20:36:27 +02:00
rose
rxrpc	Including fixes from netfilter.	2023-05-05 19:12:01 -07:00
sched	net/sched: flower: fix error handler on replace	2023-05-05 10:01:31 +01:00
sctp	sctp: delete the nested flexible array hmac	2023-04-21 08:19:30 +01:00
smc	net: deal with most data-races in sk_wait_event()	2023-05-10 10:03:32 +01:00
strparser
sunrpc	NFSD 6.4 Release Notes	2023-04-29 11:04:14 -07:00
switchdev
tipc	net: deal with most data-races in sk_wait_event()	2023-05-10 10:03:32 +01:00
tls	net: deal with most data-races in sk_wait_event()	2023-05-10 10:03:32 +01:00
unix	bpf, sockmap: Pass skb ownership through read_skb	2023-05-23 16:09:47 +02:00
vmw_vsock	bpf, sockmap: Pass skb ownership through read_skb	2023-05-23 16:09:47 +02:00
wireless	Driver core changes for 6.4-rc1	2023-04-27 11:53:57 -07:00
x25
xdp	bpf-next-for-netdev	2023-04-13 16:43:38 -07:00
xfrm	ipsec-next-2023-04-19	2023-04-19 18:46:17 -07:00
compat.c	net/compat: Update msg_control_is_user when setting a kernel pointer	2023-04-14 11:09:27 +01:00
devres.c
Kconfig	net/handshake: Add Kunit tests for the handshake consumer API	2023-04-19 18:48:48 -07:00
Kconfig.debug
Makefile	net/handshake: Create a NETLINK service for handling handshake requests	2023-04-19 18:48:48 -07:00
socket.c	net: annotate sk->sk_err write from do_recvmmsg()	2023-05-10 09:58:29 +01:00
sysctl_net.c