linux/net
David Ahern 39eb8cd175 net: mpls: rt_nhn_alive and nh_flags should be accessed using READ_ONCE
The number of alive nexthops for a route (rt->rt_nhn_alive) and the
flags for a next hop (nh->nh_flags) are modified by netdev event
handlers. The event handlers run with rtnl_lock held so updates are
always done with the lock held. The packet path accesses the fields
under the rcu lock. Since those fields can change at any moment in
the packet path, both fields should be accessed using READ_ONCE. Updates
to both fields should use WRITE_ONCE.

Update mpls_select_multipath (packet path) and mpls_ifdown and mpls_ifup
(event handlers) accordingly.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-01 20:21:44 -07:00
..
6lowpan 6lowpan: use rb_entry() 2017-01-22 16:46:13 -05:00
9p Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-03-03 21:44:35 -08:00
802 Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
8021q net/8021q: create device with all possible features in wanted_features 2017-03-21 15:26:26 -07:00
appletalk lib/vsprintf.c: remove %Z support 2017-02-27 18:43:47 -08:00
atm neighbour: fix nlmsg_pid in notifications 2017-03-22 10:48:49 -07:00
ax25 net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
batman-adv Here are two batman-adv bugfixes: 2017-03-16 12:05:38 -07:00
bluetooth net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
bpf bpf: introduce BPF_PROG_TEST_RUN command 2017-04-01 12:45:57 -07:00
bridge net: break include loop netdevice.h, dsa.h, devlink.h 2017-03-28 22:46:04 -07:00
caif sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
can can: bcm: fix hrtimer/tasklet termination in bcm op removal 2017-01-30 11:05:04 +01:00
ceph libceph: osd_request_timeout option 2017-03-07 14:30:38 +01:00
core bpf: introduce BPF_PROG_TEST_RUN command 2017-04-01 12:45:57 -07:00
dcb net: dcb: set error code on failures 2016-12-03 23:54:25 -05:00
dccp dccp: fix memory leak during tear-down of unsuccessful connection request 2017-03-13 22:00:42 -07:00
decnet Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-15 11:59:10 -07:00
dns_resolver Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-03-03 10:16:38 -08:00
dsa net: dsa: fix build error with devlink build as module 2017-04-01 20:10:20 -07:00
ethernet Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2017-02-16 21:25:49 -05:00
hsr net/hsr: use eth_hw_addr_random() 2017-02-21 13:25:22 -05:00
ieee802154 lib/vsprintf.c: remove %Z support 2017-02-27 18:43:47 -08:00
ife net: Introduce ife encapsulation module 2017-02-03 15:16:45 -05:00
ipv4 net: tcp: Refine the __tcp_select_window 2017-03-30 15:41:32 -07:00
ipv6 net: ipv6: Add support for RTM_DELNETCONF 2017-03-28 22:32:42 -07:00
ipx ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
irda net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
iucv net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
kcm sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
key netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
l2tp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-02-28 10:00:39 -08:00
l3mdev
lapb Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
llc net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
mac80211 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-04 17:31:39 -08:00
mac802154 drivers: add explicit interrupt.h includes 2017-03-30 11:05:34 -07:00
mpls net: mpls: rt_nhn_alive and nh_flags should be accessed using READ_ONCE 2017-04-01 20:21:44 -07:00
ncsi
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-23 16:41:27 -07:00
netlabel netlabel: add CALIPSO to the list of built-in protocols 2017-01-06 22:20:45 -05:00
netlink genetlink: fix counting regression on ctrl_dumpfamily() 2017-03-22 15:38:43 -07:00
netrom net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
nfc net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
openvswitch Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-23 16:41:27 -07:00
packet net: don't call strlen() on the user buffer in packet_bind_spkt() 2017-03-01 20:55:57 -08:00
phonet net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
psample net: Introduce psample, a new genetlink channel for packet sampling 2017-01-24 13:44:28 -05:00
qrtr soc: qcom: smd: Transition client drivers from smd to rpmsg 2017-03-28 17:58:07 -07:00
rds Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-15 11:59:10 -07:00
rfkill rfkill: remove rfkill-regulator 2017-01-24 11:07:35 +01:00
rose net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
rxrpc rxrpc: Ignore BUSY packets on old calls 2017-03-16 21:27:57 -07:00
sched net_sched: use setup_deferrable_timer 2017-03-24 14:42:52 -07:00
sctp net: Change return type of sk_busy_loop from bool to void 2017-03-24 20:49:30 -07:00
smc drivers: add explicit interrupt.h includes 2017-03-30 11:05:34 -07:00
strparser strparser: destroy workqueue on module exit 2017-03-03 20:43:26 -08:00
sunrpc NFS client fixes for 4.11 2017-03-17 14:16:22 -07:00
switchdev
tipc tipc: allow rdm/dgram socketpairs 2017-03-29 14:10:11 -07:00
unix net: unix: properly re-increment inflight counter of GC discarded candidates 2017-03-21 15:25:10 -07:00
vmw_vsock VSOCK: remove unnecessary ternary operator on return value 2017-03-30 11:07:08 -07:00
wimax
wireless nl80211: fix dumpit error path RTNL deadlocks 2017-03-16 10:30:03 +01:00
x25 net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec 2017-03-07 15:00:37 -08:00
compat.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-02-22 10:15:09 -08:00
Kconfig bpf: make jited programs visible in traces 2017-02-17 13:40:05 -05:00
Makefile bpf: introduce BPF_PROG_TEST_RUN command 2017-04-01 12:45:57 -07:00
socket.c tcp: mark skbs with SCM_TIMESTAMPING_OPT_STATS 2017-03-21 18:44:17 -07:00
sysctl_net.c