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Allan Stephens 169073db44 tipc: Prevent broadcast link stalling when another node fails 
Ensure that broadcast link messages that have not been acknowledged
by a newly failed node do not get an implied acknowledgement until the
failed node is removed from the broadcast link's map of reachable nodes.

Previously, a race condition allowed a new broadcast link message to be
sent after the implicit acknowledgement processing was completed, but
before the map of reachable nodes was updated, resulting in the message
having an expected acknowledgement count that required the failed node
to explicitly acknowledge the message. Since this would never occur
the new message would remain in the broadcast link's transmit queue
forever, eventually causing the link to become congested and "stall".
Delaying the implicit acknowledgement processing until after the update
of the map of reachable nodes eliminates this race condition and prevents
stalling.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
 		2011-09-01 11:16:36 -04:00
..
9p net/9p: Fix the msize calculation. 2011-07-23 09:32:52 -05:00
802 rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER 2011-08-02 04:29:23 -07:00
8021q Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net 2011-08-20 10:39:12 -07:00
appletalk appletalk: Reduce switch/case indent 2011-07-01 16:11:15 -07:00
atm net: remove use of ndo_set_multicast_list in drivers 2011-08-17 20:22:03 -07:00
ax25 ax25: Fix set-but-unused variable. 2011-04-17 00:48:31 -07:00
batman-adv batman-adv: merge update_transtable() into tt related code 2011-08-22 15:16:22 +02:00
bluetooth net: remove use of ndo_set_multicast_list in drivers 2011-08-17 20:22:03 -07:00
bridge Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net 2011-08-20 10:39:12 -07:00
caif caif: Remove OOM messages, use kzalloc 2011-08-28 17:16:13 -04:00
can rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER 2011-08-02 04:29:23 -07:00
ceph Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2011-07-26 13:38:50 -07:00
core net: convert core to skb paged frag APIs 2011-08-24 17:52:11 -07:00
dcb dcbnl: unlock on an error path in dcbnl_cee_fill() 2011-07-08 09:01:14 -07:00
dccp Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net 2011-08-07 23:20:26 -07:00
decnet rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER 2011-08-02 04:29:23 -07:00
dns_resolver KEYS: Improve /proc/keys 2011-03-17 11:59:32 +11:00
dsa net: remove use of ndo_set_multicast_list in drivers 2011-08-17 20:22:03 -07:00
econet af_econet: Use current logging styles and neatening 2011-07-03 20:05:16 -07:00
ethernet net: add IFF_SKB_TX_SHARED flag to priv_flags 2011-07-27 22:39:30 -07:00
ieee802154 IEEE802.15.4: 6LoWPAN basic support 2011-08-24 19:36:06 -07:00
ipv4 Proportional Rate Reduction for TCP. 2011-08-24 19:40:40 -07:00
ipv6 net: ipv6: convert to SKB frag APIs 2011-08-24 17:52:12 -07:00
ipx ipx: fix ipx_release() 2011-03-21 18:16:39 -07:00
irda net: remove use of ndo_set_multicast_list in drivers 2011-08-17 20:22:03 -07:00
iucv af_iucv: add HiperSockets transport 2011-08-13 01:10:16 -07:00
key net: Remove casts of void * 2011-06-16 23:19:27 -04:00
l2tp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2011-07-28 05:58:19 -07:00
lapb lapb: Reduce switch/case indent 2011-07-01 16:11:16 -07:00
llc llc: Fix length check in llc_fixup_skb(). 2011-04-11 18:59:05 -07:00
mac80211 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2011-08-29 14:52:20 -04:00
netfilter Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net 2011-08-07 23:20:26 -07:00
netlabel Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net 2011-08-20 10:39:12 -07:00
netlink net: cleanup some rcu_dereference_raw 2011-08-12 02:55:28 -07:00
netrom netrom: Reduce switch/case indent 2011-07-01 16:11:16 -07:00
nfc NFC: Reserve tx head and tail room 2011-08-24 14:41:44 -04:00
packet af_packet: Prefixed tpacket_v3 structs to avoid name space collision 2011-08-26 12:38:44 -04:00
phonet rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER 2011-08-02 04:29:23 -07:00
rds notifiers: cpu: move cpu notifiers into cpu.h 2011-07-25 20:57:14 -07:00
rfkill net: rfkill: add generic gpio rfkill driver 2011-05-19 13:53:54 -04:00
rose rose: Delete commented out references to ancient firewalling code. 2011-07-07 02:41:59 -07:00
rxrpc rxrpc: Fix set but unused variable 'usage' in rxrpc_get_transport() 2011-05-19 18:51:50 -04:00
sched net_sched: sfb: optimize enqueue on full queue 2011-08-26 12:55:18 -04:00
sctp sctp: Bundle HEAERTBEAT into ASCONF_ACK 2011-08-24 19:41:13 -07:00
sunrpc rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER 2011-08-02 04:29:23 -07:00
tipc tipc: Prevent broadcast link stalling when another node fails 2011-09-01 11:16:36 -04:00
unix Scm: Remove unnecessary pid & credential references in Unix socket's send and receive path 2011-08-24 19:41:13 -07:00
wanrouter Fix common misspellings 2011-03-31 11:26:23 -03:00
wimax Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-05-20 21:04:44 -07:00
wireless nl80211/cfg80211: add STA WME parameters 2011-08-26 10:47:56 -04:00
x25 x25: Reduce switch/case indent 2011-07-01 16:11:16 -07:00
xfrm net: xfrm: convert to SKB frag APIs 2011-08-24 17:52:12 -07:00
Kconfig NFC: add nfc subsystem core 2011-07-05 15:26:57 -04:00
Makefile NFC: add nfc subsystem core 2011-07-05 15:26:57 -04:00
compat.c net: Add sendmmsg socket system call 2011-05-05 11:10:14 -07:00
nonet.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
socket.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net 2011-08-07 23:20:26 -07:00
sysctl_net.c net: Remove unnecessary returns from void function()s 2010-05-17 23:23:14 -07:00