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Vlad Yasevich b9f8478682 sctp: Fix error count increments that were results of HEARTBEATS 
SCTP RFC 4960 states that unacknowledged HEARTBEATS count as
errors agains a given transport or endpoint.  As such, we
should increment the error counts for only for unacknowledged
HB, otherwise we detect failure too soon.  This goes for both
the overall error count and the path error count.

Now, there is a difference in how the detection is done
between the two.  The path error detection is done after
the increment, so to detect it properly, we actually need
to exceed the path threshold.  The overall error detection
is done _BEFORE_ the increment.  Thus to detect the failure,
it's enough for the error count to match the threshold.
This is why all the state functions use '>=' to detect failure,
while path detection uses '>'.

Thanks goes to Chunbo Luo <chunbo.luo@windriver.com> who first
proposed patches to fix this issue and made me re-read the spec
and the code to figure out how this cruft really works.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
 		2009-09-04 18:20:58 -04:00
..
9p 9p: Possible regression in p9_client_stat 2009-07-14 15:54:41 -05:00
802 net: remove COMPAT_NET_DEV_OPS 2009-05-25 01:53:53 -07:00
8021q vlan: adds drops accounting 2009-09-03 20:02:17 -07:00
appletalk Use correct NET_RX_* returns for atalk_rcv() 2009-08-12 20:44:50 -07:00
atm atm/br2684: netif_stop_queue() when atm device busy and netif_wake_queue() when we can send packets again. 2009-09-02 23:46:10 -07:00
ax25 net: Move rx skb_orphan call to where needed 2009-06-23 16:36:25 -07:00
bluetooth netdev: convert pseudo-devices to netdev_tx_t 2009-09-01 01:13:07 -07:00
bridge netdev: convert pseudo-devices to netdev_tx_t 2009-09-01 01:13:07 -07:00
can can: use correct NET_RX_ return values 2009-08-30 22:13:18 -07:00
core net: Remove debugging code 2009-09-03 05:17:20 -07:00
dcb dcbnl: Add implementations of dcbnl setapp/getapp commands 2009-09-01 01:24:36 -07:00
dccp inet: inet_connection_sock_af_ops const 2009-09-02 01:03:49 -07:00
decnet net: make neigh_ops constant 2009-09-01 17:40:57 -07:00
dsa netdev: convert pseudo-devices to netdev_tx_t 2009-09-01 01:13:07 -07:00
econet Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-08-12 17:44:53 -07:00
ethernet net: remove COMPAT_NET_DEV_OPS 2009-05-25 01:53:53 -07:00
ieee802154 Drop ARPHRD_IEEE802154_PHY 2009-08-19 23:08:24 +04:00
ipv4 tcp: replace hard coded GFP_KERNEL with sk_allocation 2009-09-02 23:45:45 -07:00
ipv6 ipv6: Fix tcp_v6_send_response(): it didn't set skb transport header 2009-09-03 20:44:38 -07:00
ipx headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
irda net: file_operations should be const 2009-09-02 01:03:53 -07:00
iucv net: adding memory barrier to the poll and receive callbacks 2009-07-09 17:06:57 -07:00
key net: file_operations should be const 2009-09-02 01:03:53 -07:00
lapb net: remove NET_RX_BAD and NET_RX_CN* defines 2009-07-05 19:15:35 -07:00
llc Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-09-02 00:32:56 -07:00
mac80211 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 2009-09-02 14:18:09 -07:00
netfilter Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-09-02 00:32:56 -07:00
netlabel Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-07-30 19:22:43 -07:00
netlink net/compat/wext: send different messages to compat tasks 2009-07-15 08:53:39 -07:00
netrom Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-09-02 00:32:56 -07:00
packet af_packet: style cleanups 2009-07-23 18:01:10 -07:00
phonet netdev: convert pseudo drivers to netdev_tx_t 2009-09-01 01:13:40 -07:00
rds RDS: Add a debug message suggesting to load transport modules 2009-08-23 19:13:14 -07:00
rfkill rfkill: add the GPS radio type 2009-08-04 16:44:23 -04:00
rose convert hamradio drivers to netdev_txreturnt_t 2009-09-01 01:13:12 -07:00
rxrpc net: mark read-only arrays as const 2009-08-05 10:42:58 -07:00
sched Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-09-02 00:32:56 -07:00
sctp sctp: Fix error count increments that were results of HEARTBEATS 2009-09-04 18:20:58 -04:00
sunrpc headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
tipc tipc: fix test of bearer_priority range in tipc_register_media() 2009-08-29 00:19:42 -07:00
unix net: adding memory barrier to the poll and receive callbacks 2009-07-09 17:06:57 -07:00
wanrouter headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
wimax wimax: fix warning caused by not checking retval of rfkill_set_hw_state() 2009-06-11 11:12:48 -07:00
wireless cfg80211: fix looping soft lockup in find_ie() 2009-09-02 15:29:04 -04:00
x25 headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
xfrm net: file_operations should be const 2009-09-02 01:03:53 -07:00
Kconfig net/compat/wext: send different messages to compat tasks 2009-07-15 08:53:39 -07:00
Makefile net: remove redundant sched/ in net/Makefile 2009-07-12 20:11:14 -07:00
TUNABLE
…
compat.c net/compat/wext: send different messages to compat tasks 2009-07-15 08:53:39 -07:00
nonet.c
…
socket.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2009-04-06 18:05:43 -07:00
sysctl_net.c net: sysctl_net - use net_eq to compare nets 2009-03-16 16:23:30 +01:00