AcoSail/kernel_optimize_test
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825de27d9e
kernel_optimize_test/net
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Gerrit Renker 825de27d9e dccp ccid-3: Fix "t_ipi explosion" bug 
The identification of this bug is thanks to Cheng Wei and Tomasz
Grobelny.

To avoid divide-by-zero, the implementation previously ignored RTTs
smaller than 4 microseconds when performing integer division RTT/4.

When the RTT reached a value less than 4 microseconds (as observed on
loopback), this prevented the Window Counter CCVal value from
advancing. As a result, the receiver stopped sending feedback. This in
turn caused non-ending expiries of the nofeedback timer at the sender,
so that the sending rate was progressively reduced until reaching the
minimum of one packet per 64 seconds.

The patch fixes this bug by handling integer division more
intelligently. Due to consistent use of dccp_sample_rtt(),
divide-by-zero-RTT is avoided.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-27 06:33:54 -07:00
..
9p 9p: fix error path during early mount 2008-05-14 19:23:27 -05:00
802 [TR] net/802/tr.c: sysctl_tr_rif_timeout static 2008-01-31 19:28:31 -08:00
8021q vlan: Use bitmask of feature flags instead of seperate feature bits 2008-05-23 00:27:50 -07:00
appletalk [NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. 2008-03-26 04:39:53 +09:00
atm Revert "atm: Do not free already unregistered net device." 2008-05-06 00:00:16 -07:00
ax25 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2008-04-14 02:30:23 -07:00
bluetooth bluetooth: use get/put_unaligned_* helpers 2008-05-02 16:25:46 -07:00
bridge bridge: Consolidate error paths in br_add_bridge(). 2008-05-04 17:58:07 -07:00
can Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-05-08 19:03:26 -07:00
core pktgen: make sure that pktgen_thread_worker has been executed 2008-05-20 15:12:44 -07:00
dccp dccp ccid-3: Fix "t_ipi explosion" bug 2008-05-27 06:33:54 -07:00
decnet ip: Use inline function dst_metric() instead of direct access to dst->metric[] 2008-05-04 22:14:42 -07:00
econet net: Allow netdevices to specify needed head/tailroom 2008-05-12 20:48:31 -07:00
ethernet [NET]: Return more appropriate error from eth_validate_addr(). 2008-04-13 22:45:40 -07:00
ieee80211 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2008-04-14 02:30:23 -07:00
ipv4 net: The world is not perfect patch. 2008-05-21 17:47:54 -07:00
ipv6 net: The world is not perfect patch. 2008-05-21 17:47:54 -07:00
ipx [NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. 2008-03-26 04:39:53 +09:00
irda net/irda/irnet/irnet_irda.c needs unaligned.h 2008-05-14 19:11:15 -07:00
iucv iucv: Delay bus registration until core is ready. 2008-04-10 02:12:45 -07:00
key af_key: Fix selector family initialization. 2008-05-21 13:26:11 -07:00
lapb
llc Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-04-02 22:35:23 -07:00
mac80211 mac80211: fix NULL pointer dereference in ieee80211_compatible_rates 2008-05-20 22:40:30 -04:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-05-14 10:08:24 -07:00
netlabel Audit: collect sessionid in netlink messages 2008-04-28 06:18:03 -04:00
netlink Audit: collect sessionid in netlink messages 2008-04-28 06:18:03 -04:00
netrom [NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS. 2008-03-26 04:39:55 +09:00
packet net: Allow netdevices to specify needed head/tailroom 2008-05-12 20:48:31 -07:00
rfkill rfkill: Fix device type check when toggling states 2008-04-15 15:04:35 -04:00
rose rose: Wrong list_lock argument in rose_node seqops 2008-05-02 17:03:22 -07:00
rxrpc net: Add missing braces to multi-statement if()s 2008-05-02 16:20:10 -07:00
sched net_sched: cls_api: fix return value for non-existant classifiers 2008-05-20 14:34:46 -07:00
sctp sctp: Fix use of uninitialized pointer 2008-05-13 23:25:00 -07:00
sunrpc Remove duplicated include in net/sunrpc/svc.c 2008-05-08 10:58:25 -07:00
tipc tipc: Increase buffer header to support worst-case device 2008-05-08 21:38:24 -07:00
unix Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-04-24 08:40:34 -07:00
wanrouter [WANROUTER]: Use proc_create() to setup ->proc_fops first 2008-02-28 14:15:56 -08:00
wireless Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2008-04-14 02:30:23 -07:00
x25 [NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS. 2008-03-26 04:39:55 +09:00
xfrm xfrm_user: Remove zero length key checks. 2008-05-21 17:36:21 -07:00
compat.c net: Add compat support for getsockopt (MCAST_MSFILTER) 2008-04-29 03:23:22 -07:00
Kconfig [IPV4]: Fix size description of CONFIG_INET. 2008-03-04 15:18:22 +09:00
Makefile
nonet.c
socket.c net: Unexport move_addr_to_{kernel,user} 2008-04-23 03:37:49 -07:00
sysctl_net.c net: fix returning void-valued expression warnings 2008-05-01 02:47:38 -07:00
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