WSL2-Linux-Kernel/net/ipv4
Eric Dumazet 907cdda520 tcp: Add SNMP counter for DEFER_ACCEPT
Its currently hard to diagnose when ACK frames are dropped because an
application set TCP_DEFER_ACCEPT on its listening socket.

See http://bugzilla.kernel.org/show_bug.cgi?id=15507

This patch adds a SNMP value, named TCPDeferAcceptDrop

netstat -s | grep TCPDeferAcceptDrop
    TCPDeferAcceptDrop: 0

This counter is incremented every time we drop a pure ACK frame received
by a socket in SYN_RECV state because its SYNACK retrans count is lower
than defer_accept value.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-21 18:31:35 -07:00
..
netfilter netfilter: xtables: restore indentation 2010-02-26 17:53:31 +01:00
Kconfig net: tcp: make veno selectable as default congestion module 2010-03-16 21:23:21 -07:00
Makefile
af_inet.c percpu: add __percpu sparse annotations to net 2010-02-16 23:05:38 -08:00
ah4.c xfrm: SA lookups signature with mark 2010-02-22 16:20:22 -08:00
arp.c net neigh: Decouple per interface neighbour table controls from binary sysctls 2010-02-16 15:55:18 -08:00
cipso_ipv4.c ipv4: Define cipso_v4_delopt static 2009-10-07 14:45:58 -07:00
datagram.c inet: rename some inet_sock fields 2009-10-18 18:52:53 -07:00
devinet.c net: rename notifier defines for netdev type change 2010-03-18 20:00:01 -07:00
esp4.c xfrm: SA lookups signature with mark 2010-02-22 16:20:22 -08:00
fib_frontend.c net: spread __net_init, __net_exit 2010-01-17 19:16:02 -08:00
fib_hash.c ipv4: fib table algorithm performance improvement 2009-10-05 00:21:56 -07:00
fib_lookup.h ipv4: cleanup - remove two unused parameters from fib_semantic_match(). 2009-05-18 15:16:37 -07:00
fib_rules.c net: Allow fib_rule_unregister to batch 2009-12-03 12:22:55 -08:00
fib_semantics.c ipv4: obsolete config in kernel source (IP_ROUTE_PERVASIVE) 2010-02-04 14:58:46 -08:00
fib_trie.c ipv4: fib table algorithm performance improvement 2009-10-05 00:21:56 -07:00
icmp.c icmp: move icmp_err_convert[] to .rodata 2010-01-23 01:21:28 -08:00
igmp.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-02-14 22:30:54 -08:00
inet_connection_sock.c tcp: account SYN-ACK timeouts & retransmissions 2010-01-17 19:09:39 -08:00
inet_diag.c netlink: With opcode INET_DIAG_BC_S_LE dport was compared in inet_diag_bc_run() 2010-01-19 14:12:20 -08:00
inet_fragment.c inet fragments: fix sparse warning: context imbalance 2009-02-26 23:13:35 -08:00
inet_hashtables.c tcp: Fix a connect() race with timewait sockets 2009-12-08 20:17:51 -08:00
inet_lro.c net/ipv4: Move && and || to end of previous line 2009-11-23 10:41:23 -08:00
inet_timewait_sock.c [PATCH] tcp: documents timewait refcnt tricks 2009-12-08 20:19:53 -08:00
inetpeer.c inetpeer: Optimize inet_getid() 2009-11-13 20:46:58 -08:00
ip_forward.c net: skb->dst accessors 2009-06-03 02:51:04 -07:00
ip_fragment.c ipv4: ip_fragment: fix unbalanced rcu_read_unlock() 2010-02-02 11:46:50 -08:00
ip_gre.c gre: fix hard header destination address checking 2010-03-04 00:53:52 -08:00
ip_input.c net: use net_eq to compare nets 2009-11-25 15:14:13 -08:00
ip_options.c net: skb->dst accessors 2009-06-03 02:51:04 -07:00
ip_output.c ip: fix mc_loop checks for tunnels with multicast outer addresses 2010-01-06 20:37:01 -08:00
ip_sockglue.c tcp: Generalized TTL Security Mechanism 2010-01-11 16:28:01 -08:00
ipcomp.c xfrm: SA lookups signature with mark 2010-02-22 16:20:22 -08:00
ipconfig.c ipconfig: Handle devices which take some time to come up. 2010-03-12 00:00:17 -08:00
ipip.c tunnels: fix netns vs proto registration ordering 2010-02-16 14:55:25 -08:00
ipmr.c net: ipmr/ip6mr: fix potential out-of-bounds vif_table access 2010-03-19 22:47:22 -07:00
netfilter.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
proc.c tcp: Add SNMP counter for DEFER_ACCEPT 2010-03-21 18:31:35 -07:00
protocol.c net: constify struct net_protocol 2009-09-14 17:03:01 -07:00
raw.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-10-29 21:28:59 -07:00
route.c ipv4: check rt_genid in dst_check 2010-03-19 21:00:41 -07:00
syncookies.c net: Add rtnetlink init_rcvwnd to set the TCP initial receive window 2009-12-23 14:13:30 -08:00
sysctl_net_ipv4.c net: TCP thin dupack 2010-02-18 15:43:09 -08:00
tcp.c NET_DMA: free skbs periodically 2010-03-20 14:29:02 -07:00
tcp_bic.c tcp: add helper for AI algorithm 2009-03-02 03:00:15 -08:00
tcp_cong.c Networking: use CAP_NET_ADMIN when deciding to call request_module 2009-08-14 11:18:34 +10:00
tcp_cubic.c tcp: add helper for AI algorithm 2009-03-02 03:00:15 -08:00
tcp_diag.c tcp: diag: Dont report negative values for rx queue 2009-12-03 16:06:13 -08:00
tcp_highspeed.c
tcp_htcp.c net/ipv4: Move && and || to end of previous line 2009-11-23 10:41:23 -08:00
tcp_hybla.c tcp: Fix tcp_hybla zero congestion window growth with small rho and large cwnd. 2008-10-07 15:58:17 -07:00
tcp_illinois.c
tcp_input.c tcp: Fix tcp_mark_head_lost() with packets == 0 2010-03-19 22:47:22 -07:00
tcp_ipv4.c TCP: check min TTL on received ICMP packets 2010-03-19 21:00:42 -07:00
tcp_lp.c net/ipv4: Move && and || to end of previous line 2009-11-23 10:41:23 -08:00
tcp_minisocks.c tcp: Add SNMP counter for DEFER_ACCEPT 2010-03-21 18:31:35 -07:00
tcp_output.c tcp: Fix tcp_make_synack() 2010-03-08 11:32:01 -08:00
tcp_probe.c tcp_probe: avoid modulus operation and wrap fix 2010-01-25 15:47:50 -08:00
tcp_scalable.c tcp: add helper for AI algorithm 2009-03-02 03:00:15 -08:00
tcp_timer.c Merge branch 'for-next' into for-linus 2010-03-08 16:55:37 +01:00
tcp_vegas.c tcp: tcp_vegas ssthresh bugfix 2009-05-25 22:44:59 -07:00
tcp_vegas.h
tcp_veno.c net/ipv4: Move && and || to end of previous line 2009-11-23 10:41:23 -08:00
tcp_westwood.c
tcp_yeah.c net/ipv4: Move && and || to end of previous line 2009-11-23 10:41:23 -08:00
tunnel4.c net: constify struct net_protocol 2009-09-14 17:03:01 -07:00
udp.c net: backlog functions rename 2010-03-05 13:34:03 -08:00
udp_impl.h net: Make setsockopt() optlen be unsigned. 2009-09-30 16:12:20 -07:00
udplite.c net: spread __net_init, __net_exit 2010-01-17 19:16:02 -08:00
xfrm4_input.c net: skb->dst accessors 2009-06-03 02:51:04 -07:00
xfrm4_mode_beet.c
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c net: skb->dst accessors 2009-06-03 02:51:04 -07:00
xfrm4_output.c net: skb->dst accessors 2009-06-03 02:51:04 -07:00
xfrm4_policy.c ipsec: Fix bogus bundle flowi 2010-03-03 01:04:37 -08:00
xfrm4_state.c xfrm: remove useless forward declarations 2008-11-25 01:05:54 -08:00
xfrm4_tunnel.c