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linux/include/net
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Eric Dumazet 2359a47671 codel: refine one condition to avoid a nul rec_inv_sqrt 
One condition before codel_Newton_step() was not good if
we never left the dropping state for a flow. As a result
rec_inv_sqrt was 0, instead of the ~0 initial value.

codel control law was then set to a very aggressive mode, dropping
many packets before reaching 'target' and recovering from this problem.

To keep codel_vars_init() as efficient as possible, refine
the condition to make sure rec_inv_sqrt initial value is correct

Many thanks to Anton Mich for discovering the issue and suggesting
a fix.

Reported-by: Anton Mich <lp2s1h@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-10 16:52:54 -07:00
..
9p 9p: Reduce object size with CONFIG_NET_9P_DEBUG 2012-01-05 10:51:44 -06:00
bluetooth Bluetooth: Use tx window from config response for ack timing 2012-07-15 12:18:29 -03:00
caif caif-hsi: Remove use of module parameters 2012-06-25 16:44:12 -07:00
irda
iucv af_iucv: add shutdown for HS transport 2012-03-07 22:52:24 -08:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-07-10 23:56:33 -07:00
netns ipv4: remove rt_cache_rebuild_count 2012-07-30 14:53:22 -07:00
nfc NFC: Allow HCI driver to pre-open pipes to some gates 2012-07-09 16:42:12 -04:00
phonet net: remove my future former mail address 2012-06-17 16:29:38 -07:00
sctp sctp: Implement quick failover draft from tsvwg 2012-07-22 12:13:46 -07:00
tc_act
act_api.h
addrconf.h ipv6: add ipv6_addr_hash() helper 2012-07-18 11:28:46 -07:00
af_ieee802154.h
af_rxrpc.h
af_unix.h af_unix: speedup /proc/net/unix 2012-06-08 14:27:23 -07:00
ah.h
arp.h ipv4: Fix neigh lookup keying over loopback/point-to-point devices. 2012-07-20 16:06:10 -07:00
atmclip.h atm: clip: Use device neigh support on top of "arp_tbl". 2011-11-30 18:51:03 -05:00
ax25.h net ax25: Fix the build when sysctl support is disabled. 2012-04-23 22:14:47 -04:00
ax88796.h
cfg80211-wext.h cfg80211: remove unused wext handler exports 2011-08-08 14:26:29 -04:00
cfg80211.h cfg80211: add channel flag to prohibit OFDM operation 2012-08-02 15:30:49 +02:00
checksum.h
cipso_ipv4.h cipso: handle CIPSO options correctly when NetLabel is disabled 2012-06-01 14:18:29 -04:00
cls_cgroup.h
codel.h codel: refine one condition to avoid a nul rec_inv_sqrt 2012-08-10 16:52:54 -07:00
compat.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
datalink.h
dcbevent.h dcb: Add stub routines for !CONFIG_DCB 2011-10-06 15:49:51 -04:00
dcbnl.h net/dcb: Add an optional max rate attribute 2012-04-05 05:08:04 -04:00
dn_dev.h
dn_fib.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
dn_neigh.h
dn_nsp.h
dn_route.h decnet: Use neighbours privately in dn_route struct. 2012-07-05 01:12:14 -07:00
dn.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
dsa.h dsa: Include linux/if_ether.h to fix build error 2011-12-01 11:41:06 -05:00
dsfield.h
dst_ops.h net: Fix warnings in dst_ops.h 2012-07-19 10:43:03 -07:00
dst.h net: force dst_default_metrics to const section 2012-08-08 16:00:28 -07:00
esp.h
ethoc.h
fib_rules.h ipv4: Elide fib_validate_source() completely when possible. 2012-06-29 01:36:36 -07:00
flow_keys.h flow_dissector: use a 64bit load/store 2011-11-29 13:17:03 -05:00
flow.h ipv4: Kill FLOWI_FLAG_RT_NOCACHE and associated code. 2012-07-20 13:36:54 -07:00
garp.h
gen_stats.h
genetlink.h net: Use NLMSG_DEFAULT_SIZE in combination with nlmsg_new() 2012-06-28 17:56:43 -07:00
gre.h
icmp.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
ieee80211_radiotap.h wireless: move ieee80211chan2mhz macro 2011-11-11 12:32:50 -05:00
ieee802154_netdev.h mac802154: declare reduced mlme operations 2012-05-16 15:16:56 -04:00
ieee802154.h 6LoWPAN: add fragmentation support 2011-11-14 00:19:42 -05:00
if_inet6.h net: delete all instances of special processing for token ring 2012-05-15 20:14:35 -04:00
inet6_connection_sock.h ipv6: Add helper inet6_csk_update_pmtu(). 2012-07-16 03:44:56 -07:00
inet6_hashtables.h ipv6: Early TCP socket demux 2012-07-26 15:50:39 -07:00
inet_common.h net-tcp: Fast Open client - sendmsg(MSG_FASTOPEN) 2012-07-19 11:02:03 -07:00
inet_connection_sock.h net: ipv6: fix TCP early demux 2012-08-06 13:33:21 -07:00
inet_ecn.h inet: add rfc 3168 extract in front of INET_ECN_encapsulate() 2011-10-22 01:25:23 -04:00
inet_frag.h ip_frag: struct inet_frags match() method returns a bool 2012-05-18 01:40:27 -04:00
inet_hashtables.h ipv4: Early TCP socket demux. 2012-06-19 21:22:05 -07:00
inet_sock.h net: ipv6: fix TCP early demux 2012-08-06 13:33:21 -07:00
inet_timewait_sock.h inet: remove rcu protection on tw_net 2011-12-14 13:34:55 -05:00
inetpeer.h ipv4: Maintain redirect and PMTU info in struct rtable again. 2012-07-10 22:40:14 -07:00
ip6_checksum.h
ip6_fib.h ipv6: Store route neighbour in rt6_info struct. 2012-07-05 02:41:58 -07:00
ip6_route.h ipv6: fix inet6_csk_xmit() 2012-07-18 08:59:58 -07:00
ip6_tunnel.h ipv6_tunnel: Allow receiving packets on the fallback tunnel if they pass sanity checks 2012-06-29 00:52:32 -07:00
ip_fib.h ipv4: Cache routes in nexthop exception entries. 2012-07-31 15:02:02 -07:00
ip_vs.h ipvs: fix oops on NAT reply in br_nf context 2012-07-17 12:00:46 +02:00
ip.h ipv4: fix ip_send_skb() 2012-08-10 14:08:57 -07:00
ipcomp.h
ipconfig.h
ipip.h tunnel: implement 64 bits statistics 2012-04-14 14:47:05 -04:00
ipv6.h ipv6: add ipv6_addr_hash() helper 2012-07-18 11:28:46 -07:00
ipx.h
iw_handler.h
lapb.h lapb: Neaten debugging 2012-05-17 18:45:20 -04:00
lib80211.h include: replace linux/module.h with "struct module" wherever possible 2011-10-31 19:32:32 -04:00
llc_c_ac.h
llc_c_ev.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
llc_c_st.h
llc_conn.h
llc_if.h
llc_pdu.h net: delete all instances of special processing for token ring 2012-05-15 20:14:35 -04:00
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
llc.h atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
mac80211.h mac80211: add time synchronisation with BSS for assoc 2012-07-12 12:10:46 +02:00
mac802154.h mac802154: add wpan device-class support 2012-06-26 21:06:11 -07:00
mip6.h
mld.h
ndisc.h ipv6: Export ndisc option parsing from ndisc.c 2012-07-11 23:39:11 -07:00
neighbour.h net: Do delayed neigh confirmation. 2012-07-05 01:03:06 -07:00
net_namespace.h net: make sock diag per-namespace 2012-07-16 22:31:34 -07:00
net_ratelimit.h
netdma.h
netevent.h net: Pass neighbours and dest address into NETEVENT_REDIRECT events. 2012-07-05 02:21:55 -07:00
netlabel.h doc: Update the email address for Paul Moore in various source files 2011-08-01 17:58:33 -07:00
netlink.h netlink: Delete all NLA_PUT*() macros. 2012-04-02 04:33:45 -04:00
netprio_cgroup.h net: netprio_cgroup: rework update socket logic 2012-07-22 12:44:01 -07:00
netrom.h
nexthop.h
nl802154.h
p8022.h
ping.h
pkt_cls.h
pkt_sched.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
protocol.h ipv6: Early TCP socket demux 2012-07-26 15:50:39 -07:00
psnap.h
raw.h
rawv6.h ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
red.h net_sched: red: Make minor corrections to comments 2012-04-16 23:53:11 -04:00
regulatory.h cfg80211: add cellular base station regulatory hint support 2012-07-17 12:16:39 +02:00
request_sock.h tcp: Change possible SYN flooding messages 2011-09-15 14:49:43 -04:00
rose.h
route.h ipv4: Properly purge netdev references on uncached routes. 2012-07-31 15:06:50 -07:00
rtnetlink.h rtnl: allow to specify different num for rx and tx queue count 2012-07-20 11:06:59 -07:00
sch_generic.h net: rename bond_queue_mapping to slave_dev_queue_mapping 2012-07-20 11:07:00 -07:00
scm.h get rid of ->scm_work_list 2012-07-22 23:58:00 +04:00
secure_seq.h tcp: add const qualifiers where possible 2011-10-21 05:22:42 -04:00
slhc_vj.h
snmp.h Merge branch 'for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2012-01-09 13:08:28 -08:00
sock.h tcp: Apply device TSO segment limit earlier 2012-08-02 00:19:17 -07:00
stp.h
tcp_memcontrol.h cgroup: pass struct mem_cgroup instead of struct cgroup to socket memcg 2012-04-10 10:04:07 -07:00
tcp_states.h
tcp.h net: tcp: ipv6_mapped needs sk_rx_dst_set method 2012-08-09 20:56:09 -07:00
timewait_sock.h [PATCH] tcp: Cache inetpeer in timewait socket, and only when necessary. 2012-06-09 14:56:12 -07:00
transp_v6.h net: relax PKTINFO non local ipv6 udp xmit check 2011-08-30 17:39:01 -04:00
udp.h net/ipv6/udp: UDP encapsulation: introduce encap_rcv hook into IPv6 2012-04-28 22:21:51 -04:00
udplite.h net: ipv4: Standardize prefixes for message logging 2012-03-12 17:05:21 -07:00
wext.h
wimax.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
wpan-phy.h mac802154: monitor device support 2012-05-16 15:17:08 -04:00
x25.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
x25device.h
xfrm.h Fix unexpected SA hard expiration after changing date 2012-08-02 00:19:17 -07:00