Neal Cardwell 18a223e0b9 tcp: fix tcp_rcv_rtt_update() use of an unscaled RTT sample ... Fix a code path in tcp_rcv_rtt_update() that was comparing scaled and unscaled RTT samples. The intent in the code was to only use the 'm' measurement if it was a new minimum. However, since 'm' had not yet been shifted left 3 bits but 'new_sample' had, this comparison would nearly always succeed, leading us to erroneously set our receive-side RTT estimate to the 'm' sample when that sample could be nearly 8x too high to use. The overall effect is to often cause the receive-side RTT estimate to be significantly too large (up to 40% too large for brief periods in my tests). Signed-off-by: Neal Cardwell <ncardwell@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2012-04-10 14:47:09 -04:00
..
netfilter	netfilter: nf_ct_ipv4: packets with wrong ihl are invalid	2012-04-10 12:50:49 +02:00
af_inet.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
ah4.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
arp.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
cipso_ipv4.c	ipv4: Convert call_rcu() to kfree_rcu(), drop opt_kfree_rcu()	2012-02-21 09:03:31 -08:00
datagram.c
devinet.c	Disintegrate and delete asm/system.h	2012-03-28 15:58:21 -07:00
esp4.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
fib_frontend.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
fib_lookup.h
fib_rules.c	net: ipv4: export fib_lookup and fib_table_lookup	2011-12-04 22:43:33 +01:00
fib_semantics.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
fib_trie.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
gre.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
icmp.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
igmp.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
inet_connection_sock.c	tcp: bind() optimize port allocation	2012-01-25 21:50:43 -05:00
inet_diag.c	netlink: add netlink_dump_control structure for netlink_dump_start()	2012-02-26 14:10:06 -05:00
inet_fragment.c
inet_hashtables.c
inet_lro.c
inet_timewait_sock.c
inetpeer.c	route: Remove redirect_genid	2012-03-08 00:30:32 -08:00
ip_forward.c
ip_fragment.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
ip_gre.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
ip_input.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
ip_options.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
ip_output.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
ip_sockglue.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2012-03-20 21:04:47 -07:00
ipcomp.c	net: Convert printks to pr_<level>	2012-03-11 23:42:51 -07:00
ipconfig.c	net: Convert printks to pr_<level>	2012-03-11 23:42:51 -07:00
ipip.c	net: Convert printks to pr_<level>	2012-03-11 23:42:51 -07:00
ipmr.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
Kconfig	net: Fix build regression when INET_UDP_DIAG=y and IPV6=m	2012-02-07 13:35:28 -05:00
Makefile	tcp memory pressure controls	2011-12-12 19:04:10 -05:00
netfilter.c
ping.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
proc.c	tcp: reduce out_of_order memory use	2012-03-19 16:53:08 -04:00
protocol.c
raw.c	net: Convert printks to pr_<level>	2012-03-11 23:42:51 -07:00
route.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-02 17:53:39 -07:00
syncookies.c	tcp: fix syncookie regression	2012-03-11 15:52:12 -07:00
sysctl_net_ipv4.c	tcp: properly initialize tcp memory limits	2012-02-02 14:34:41 -05:00
tcp.c	tcp: restore correct limit	2012-04-10 14:39:26 -04:00
tcp_bic.c	tcp: fix undo after RTO for BIC	2012-01-20 14:17:26 -05:00
tcp_cong.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
tcp_cubic.c	tcp: fix undo after RTO for CUBIC	2012-01-20 14:17:26 -05:00
tcp_diag.c	inet_diag: Rename inet_diag_req into inet_diag_req_v2	2012-01-11 12:56:06 -08:00
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c
tcp_input.c	tcp: fix tcp_rcv_rtt_update() use of an unscaled RTT sample	2012-04-10 14:47:09 -04:00
tcp_ipv4.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-03-18 23:29:41 -04:00
tcp_lp.c
tcp_memcontrol.c	Merge branch 'for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2012-03-20 18:11:21 -07:00
tcp_minisocks.c	tcp: md5: rcu conversion	2012-01-31 12:14:00 -05:00
tcp_output.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-02-04 16:39:32 -05:00
tcp_probe.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
tcp_scalable.c
tcp_timer.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
tcp_vegas.c
tcp_vegas.h
tcp_veno.c
tcp_westwood.c
tcp_yeah.c
tunnel4.c	net: Convert printks to pr_<level>	2012-03-11 23:42:51 -07:00
udp.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
udp_diag.c	net: kill duplicate included header	2012-01-17 10:31:12 -05:00
udp_impl.h
udplite.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
xfrm4_input.c
xfrm4_mode_beet.c	ipsec: be careful of non existing mac headers	2012-02-23 16:50:45 -05:00
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c	ipsec: be careful of non existing mac headers	2012-02-23 16:50:45 -05:00
xfrm4_output.c
xfrm4_policy.c
xfrm4_state.c
xfrm4_tunnel.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00