David Howells 816c9fce12 rxrpc: Fix handling of the last packet in rxrpc_recvmsg_data() ... The code for determining the last packet in rxrpc_recvmsg_data() has been using the RXRPC_CALL_RX_LAST flag to determine if the rx_top pointer points to the last packet or not. This isn't a good idea, however, as the input code may be running simultaneously on another CPU and that sets the flag *before* updating the top pointer. Fix this by the following means: (1) Restrict the use of RXRPC_CALL_RX_LAST to the input routines only. There's otherwise a synchronisation problem between detecting the flag and checking tx_top. This could probably be dealt with by appropriate application of memory barriers, but there's a simpler way. (2) Set RXRPC_CALL_RX_LAST after setting rx_top. (3) Make rxrpc_rotate_rx_window() consult the flags header field of the DATA packet it's about to discard to see if that was the last packet. Use this as the basis for ending the Rx phase. This shouldn't be a problem because the recvmsg side of things is guaranteed to see the packets in order. (4) Make rxrpc_recvmsg_data() return 1 to indicate the end of the data if: (a) the packet it has just processed is marked as RXRPC_LAST_PACKET (b) the call's Rx phase has been ended. Signed-off-by: David Howells <dhowells@redhat.com>		2016-09-17 10:51:54 +01:00
..
6lowpan	6lowpan: ndisc: set invalid unicast short addr to unspec	2016-07-08 13:23:12 +02:00
9p	9p/trans_virtio: use kvfree() for iov_iter_get_pages_alloc()	2016-08-09 13:42:36 +03:00
802
8021q	net: remove type_check from dev_get_nest_level()	2016-08-13 15:15:54 -07:00
appletalk	appletalk: use IS_ENABLED() instead of checking for built-in or module	2016-09-10 21:19:10 -07:00
atm	lec: use IS_ENABLED() instead of checking for built-in or module	2016-09-10 21:19:10 -07:00
ax25	AX.25: Close socket connection on session completion	2016-06-18 20:55:34 -07:00
batman-adv	batman: make netlink attributes const	2016-09-01 14:09:00 -07:00
bluetooth	Bluetooth: Fix hci_sock_recvmsg when MSG_TRUNC is not set	2016-08-25 20:58:47 +02:00
bridge	net: bridge: add helper to call /sbin/bridge-stp	2016-09-13 11:21:31 -04:00
caif	caif: Remove unneeded header file	2016-06-28 05:26:14 -04:00
can	can: only call can_stat_update with procfs	2016-06-23 11:23:49 +02:00
ceph	libceph: using kfree_rcu() to simplify the code	2016-08-08 21:41:42 +02:00
core	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-09-12 15:52:44 -07:00
dcb
dccp	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2016-07-29 17:38:46 -07:00
decnet	net: fix decnet rtnexthop parsing	2016-07-05 14:08:47 -07:00
dns_resolver	KEYS: Add a facility to restrict new links into a keyring	2016-04-11 22:37:37 +01:00
dsa	net-next: dsa: add Qualcomm tag RX/TX handler	2016-09-16 04:31:51 -04:00
ethernet
hsr	net/hsr: Use setup_timer and mod_timer.	2016-05-16 14:00:43 -04:00
ieee802154	ieee802154: 6lowpan: fix intra pan id check	2016-07-08 13:23:12 +02:00
ipv4	tcp: fix a stale ooo_last_skb after a replace	2016-09-16 04:09:49 -04:00
ipv6	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-09-12 15:52:44 -07:00
ipx
irda	net/irda: remove pointless assignment/check	2016-08-19 18:07:24 -07:00
iucv	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2016-07-29 17:38:46 -07:00
kcm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-09-12 15:52:44 -07:00
key
l2tp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-09-12 15:52:44 -07:00
l3mdev	net: ipv6: Remove l3mdev_get_saddr6	2016-09-10 23:12:53 -07:00
lapb	net/lapb: tuse %*ph to dump buffers	2016-05-29 22:33:25 -07:00
llc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-05-09 15:59:24 -04:00
mac80211	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-09-12 15:52:44 -07:00
mac802154	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2016-03-19 10:05:34 -07:00
mpls	mpls: get rid of trivial returns	2016-09-01 10:13:15 -07:00
ncsi	net/ncsi: avoid maybe-uninitialized warning	2016-07-25 10:32:59 -07:00
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-09-12 15:52:44 -07:00
netlabel	netlabel: Implement CALIPSO config functions for SMACK.	2016-06-27 15:06:18 -04:00
netlink	netlink: don't forget to release a rhashtable_iter structure	2016-09-07 17:29:38 -07:00
netrom
nfc	NFC: digital: Fix RTOX supervisor PDU handling	2016-07-11 02:02:03 +02:00
openvswitch	openvswitch: avoid deferred execution of recirc actions	2016-09-15 20:35:52 -04:00
packet	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-07-24 00:53:32 -04:00
phonet
qrtr	Merge tag 'qcom-soc-for-4.7-2' into net-next	2016-05-17 14:11:19 -04:00
rds	RDS: add __printf format attribute to error reporting functions	2016-08-08 16:16:21 -07:00
rfkill	rfkill: Use switch to demux userspace operations	2016-04-05 10:48:53 +02:00
rose	rose: limit sk_filter trim to payload	2016-07-13 11:53:40 -07:00
rxrpc	rxrpc: Fix handling of the last packet in rxrpc_recvmsg_data()	2016-09-17 10:51:54 +01:00
sched	net/sched: cls_flower: Remove an unused field from the filter key structure	2016-09-15 20:27:23 -04:00
sctp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-09-12 15:52:44 -07:00
strparser	kcm: Remove TCP specific references from kcm and strparser	2016-08-28 23:32:41 -04:00
sunrpc	SUNRPC: Silence WARN_ON when NFSv4.1 over RDMA is in use	2016-08-24 22:32:55 -04:00
switchdev	rtnetlink: fdb dump: optimize by saving last interface markers	2016-09-01 16:56:15 -07:00
tipc	tipc: fix possible memory leak in tipc_udp_enable()	2016-09-13 11:28:32 -04:00
unix	af_unix: split 'u->readlock' into two: 'iolock' and 'bindlock'	2016-09-04 13:29:29 -07:00
vmw_vsock	vhost/vsock: drop space available check for TX vq	2016-08-15 05:05:21 +03:00
wimax
wireless	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-09-12 15:52:44 -07:00
x25	net: x25: remove null checks on arrays calling_ae and called_ae	2016-09-09 18:13:30 -07:00
xfrm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-09-12 15:52:44 -07:00
compat.c	packet: compat support for sock_fprog	2016-06-09 23:41:03 -07:00
Kconfig	strparser: Stream parser for messages	2016-08-17 19:36:23 -04:00
Makefile	strparser: Stream parser for messages	2016-08-17 19:36:23 -04:00
socket.c	fs: poll/select/recvmmsg: use timespec64 for timeout events	2016-05-19 19:12:14 -07:00
sysctl_net.c	net: make net namespace sysctls belong to container's owner	2016-08-14 21:08:58 -07:00