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296f7ea75b
linux/net/ipv4
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Satoru Moriya 296f7ea75b udp: add tracepoints for queueing skb to rcvbuf 
This patch adds a tracepoint to __udp_queue_rcv_skb to get the
return value of ip_queue_rcv_skb. It indicates why kernel drops
a packet at this point.

ip_queue_rcv_skb returns following values in the packet drop case:

rcvbuf is full                 : -ENOMEM
sk_filter returns error        : -EINVAL, -EACCESS, -ENOMEM, etc.
__sk_mem_schedule returns error: -ENOBUF

Signed-off-by: Satoru Moriya <satoru.moriya@hds.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21 16:06:10 -07:00
..
netfilter netfilter: nf_nat: avoid double seq_adjust for loopback 2011-06-16 17:29:22 +02:00
af_inet.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-06-20 22:29:08 -07:00
ah4.c inet: constify ip headers and in6_addr 2011-04-22 11:04:14 -07:00
arp.c net: gre: provide multicast mappings for ipv4 and ipv6 2011-03-30 00:10:47 -07:00
cipso_ipv4.c inet: add RCU protection to inet->opt 2011-04-28 13:16:35 -07:00
datagram.c ipv4: Lock socket and use cork flow in ip4_datagram_connect(). 2011-05-08 13:48:57 -07:00
devinet.c rtnetlink: Compute and store minimum ifinfo dump size 2011-06-09 20:38:07 -07:00
esp4.c inet: constify ip headers and in6_addr 2011-04-22 11:04:14 -07:00
fib_frontend.c rtnetlink: Compute and store minimum ifinfo dump size 2011-06-09 20:38:07 -07:00
fib_lookup.h ipv4: Fix nexthop caching wrt. scoping. 2011-03-24 18:06:47 -07:00
fib_rules.c ipv4: Use flowi4 in FIB layer. 2011-03-12 15:08:49 -08:00
fib_semantics.c net,rcu: convert call_rcu(fc_rport_free_rcu) to kfree_rcu() 2011-05-07 22:50:55 -07:00
fib_trie.c Add appropriate <linux/prefetch.h> include for prefetch users 2011-05-22 21:41:57 -07:00
gre.c Remove redundant linux/version.h includes from net/ 2011-06-21 16:03:17 -07:00
icmp.c ipv4: Pass explicit destination address to rt_bind_peer(). 2011-05-18 18:42:43 -04:00
igmp.c igmp: call ip_mc_clear_src() only when we have no users of ip_mc_list 2011-05-24 13:26:12 -04:00
inet_connection_sock.c seqlock: Get rid of SEQLOCK_UNLOCKED 2011-05-24 15:22:17 +02:00
inet_diag.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-06-20 22:29:08 -07:00
inet_fragment.c
inet_hashtables.c
inet_lro.c inet: constify ip headers and in6_addr 2011-04-22 11:04:14 -07:00
inet_timewait_sock.c
inetpeer.c inetpeer: remove unused list 2011-06-08 17:05:30 -07:00
ip_forward.c ipv4: Fix 'iph' use before set. 2011-05-12 23:03:46 -04:00
ip_fragment.c ipv4: Don't use enums as bitmasks in ip_fragment.c 2011-05-17 17:28:02 -04:00
ip_gre.c net: call dev_alloc_name from register_netdevice 2011-05-05 10:57:45 -07:00
ip_input.c inet: constify ip headers and in6_addr 2011-04-22 11:04:14 -07:00
ip_options.c ip_options_compile: properly handle unaligned pointer 2011-05-31 15:11:02 -07:00
ip_output.c ipv4: Fix packet size calculation for raw IPsec packets in __ip_append_data 2011-06-09 14:49:59 -07:00
ip_sockglue.c inet: add RCU protection to inet->opt 2011-04-28 13:16:35 -07:00
ipcomp.c inet: constify ip headers and in6_addr 2011-04-22 11:04:14 -07:00
ipconfig.c ipconfig wait for carrier 2011-05-19 17:13:04 -04:00
ipip.c net: call dev_alloc_name from register_netdevice 2011-05-05 10:57:45 -07:00
ipmr.c rtnetlink: Compute and store minimum ifinfo dump size 2011-06-09 20:38:07 -07:00
Kconfig
Makefile net: ipv4: add IPPROTO_ICMP socket kind 2011-05-13 16:08:13 -04:00
netfilter.c netfilter: af_info: add 'strict' parameter to limit lookup to .oif 2011-04-04 17:00:54 +02:00
ping.c ipv4, ping: Remove duplicate icmp.h include 2011-06-20 13:04:38 -07:00
proc.c
protocol.c
raw.c net: convert %p usage to %pK 2011-05-24 01:13:12 -04:00
route.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-06-20 22:29:08 -07:00
syncookies.c tcp: RFC2988bis + taking RTT sample from 3WHS for the passive open side 2011-06-08 17:05:30 -07:00
sysctl_net_ipv4.c inetpeer: remove unused list 2011-06-08 17:05:30 -07:00
tcp_bic.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_cong.c
tcp_cubic.c tcp_cubic: limit delayed_ack ratio to prevent divide error 2011-05-08 15:51:57 -07:00
tcp_diag.c
tcp_highspeed.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_htcp.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_hybla.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_illinois.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_input.c tcp: RFC2988bis + taking RTT sample from 3WHS for the passive open side 2011-06-08 17:05:30 -07:00
tcp_ipv4.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-06-20 22:29:08 -07:00
tcp_lp.c Fix common misspellings 2011-03-31 11:26:23 -03:00
tcp_minisocks.c tcp: RFC2988bis + taking RTT sample from 3WHS for the passive open side 2011-06-08 17:05:30 -07:00
tcp_output.c inet: Pass flowi to ->queue_xmit(). 2011-05-08 15:28:28 -07:00
tcp_probe.c
tcp_scalable.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_timer.c
tcp_vegas.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_vegas.h
tcp_veno.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_westwood.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_yeah.c Fix common misspellings 2011-03-31 11:26:23 -03:00
tcp.c net: Allow no-cache copy from user on transmit 2011-04-04 22:30:30 -07:00
tunnel4.c
udp_impl.h
udp.c udp: add tracepoints for queueing skb to rcvbuf 2011-06-21 16:06:10 -07:00
udplite.c
xfrm4_input.c
xfrm4_mode_beet.c
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c
xfrm4_output.c xfrm: Assign the inner mode output function to the dst entry 2011-05-10 15:03:34 -07:00
xfrm4_policy.c ipv4: xfrm: Eliminate ->rt_src reference in policy code. 2011-05-10 13:32:48 -07:00
xfrm4_state.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-3.6 2011-05-11 14:26:58 -04:00
xfrm4_tunnel.c