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linux/net/ipv6
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Hannes Frederic Sowa 705f1c869d ipv6: remove rt6i_genid 
Eric Dumazet noticed that all no-nonexthop or no-gateway routes which
are already marked DST_HOST (e.g. input routes routes) will always be
invalidated during sk_dst_check. Thus per-socket dst caching absolutely
had no effect and early demuxing had no effect.

Thus this patch removes rt6i_genid: fn_sernum already gets modified during
add operations, so we only must ensure we mutate fn_sernum during ipv6
address remove operations. This is a fairly cost extensive operations,
but address removal should not happen that often. Also our mtu update
functions do the same and we heard no complains so far. xfrm policy
changes also cause a call into fib6_flush_trees. Also plug a hole in
rt6_info (no cacheline changes).

I verified via tracing that this change has effect.

Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: YOSHIFUJI Hideaki <hideaki@yoshifuji.org>
Cc: Vlad Yasevich <vyasevich@gmail.com>
Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Cc: Martin Lau <kafai@fb.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-30 14:00:48 -04:00
..
netfilter netfilter: fix missing dependencies in NETFILTER_XT_TARGET_LOG 2014-09-02 13:59:54 -07:00
addrconf.c ipv6: remove rt6i_genid 2014-09-30 14:00:48 -04:00
addrconf_core.c ipv6: remove rt6i_genid 2014-09-30 14:00:48 -04:00
addrlabel.c list: fix order of arguments for hlist_add_after(_rcu) 2014-08-06 18:01:24 -07:00
af_inet6.c ipv6: Implement automatic flow label generation on transmit 2014-07-07 21:14:21 -07:00
ah6.c ah6: Use the IPsec protocol multiplexer API 2014-03-14 07:28:07 +01:00
anycast.c ipv6: clean up anycast when an interface is destroyed 2014-09-12 17:33:06 -04:00
datagram.c net: Save TX flow hash in sock and set in skbuf on xmit 2014-07-07 21:14:21 -07:00
esp6.c esp6: Use the IPsec protocol multiplexer API 2014-03-14 07:28:07 +01:00
exthdrs.c ipv6/exthdrs: accept tlv which includes only padding 2013-09-11 15:52:27 -04:00
exthdrs_core.c ipv6: ipv6_find_hdr restore prev functionality 2014-02-27 18:27:26 -05:00
exthdrs_offload.c ipv6: Fix exthdrs offload registration. 2014-03-06 16:35:55 -05:00
fib6_rules.c ipv6: move IPV6_TCLASS_SHIFT into ipv6.h and define a helper 2014-01-15 15:53:18 -08:00
icmp.c net: fix the counter ICMP_MIB_INERRORS/ICMP6_MIB_INERRORS 2014-07-31 22:04:18 -07:00
inet6_connection_sock.c net: support marking accepting TCP sockets 2014-05-13 18:35:09 -04:00
inet6_hashtables.c inet: convert inet_ehash_secret and ipv6_hash_secret to net_get_random_once 2013-10-19 19:45:35 -04:00
ip6_checksum.c udp: Generic functions to set checksum 2014-06-04 22:46:38 -07:00
ip6_fib.c ipv6: remove rt6i_genid 2014-09-30 14:00:48 -04:00
ip6_flowlabel.c net: ipv6: Introduce ip6_sk_dst_hoplimit. 2014-04-30 13:31:26 -04:00
ip6_gre.c ip6_gre: Return an error when adding an existing tunnel. 2014-09-28 16:19:46 -04:00
ip6_icmp.c ipv6: Kill ipv6 dependency of icmpv6_send(). 2013-04-29 13:54:36 -04:00
ip6_input.c net: Fix memory leak if TPROXY used with TCP early demux 2014-01-27 16:22:11 -08:00
ip6_offload.c gre: Call gso_make_checksum 2014-06-04 22:46:38 -07:00
ip6_offload.h ipv6: Pull IPv6 GSO registration out of the module 2012-11-15 17:39:24 -05:00
ip6_output.c xfrm: Generate blackhole routes only from route lookup functions 2014-09-16 10:08:40 +02:00
ip6_tunnel.c ip6_tunnel: Return an error when adding an existing tunnel. 2014-09-28 16:19:46 -04:00
ip6_vti.c ip6_vti: Return an error when adding an existing tunnel. 2014-09-28 16:19:46 -04:00
ip6mr.c net: set name_assign_type in alloc_netdev() 2014-07-15 16:12:48 -07:00
ipcomp6.c ipcomp6: Use the IPsec protocol multiplexer API 2014-03-14 07:28:07 +01:00
ipv6_sockglue.c ipv6: remove unnecessary break after return 2014-07-15 16:27:01 -07:00
Kconfig ip6_vti: Fix build when NET_IP_TUNNEL is not set. 2014-02-20 14:29:49 +01:00
Makefile xfrm6: Add IPsec protocol multiplexer 2014-03-14 07:28:07 +01:00
mcast.c ipv6: fix rtnl locking in setsockopt for anycast and multicast 2014-09-05 11:52:28 -07:00
mip6.c ipv4/ipv6: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
ndisc.c neigh: remove exceptional & on function name 2014-07-24 23:23:31 -07:00
netfilter.c netfilter: Fix potential use after free in ip6_route_me_harder() 2014-05-09 02:36:39 +02:00
output_core.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-06-11 16:02:55 -07:00
ping.c net: Eliminate no_check from protosw 2014-05-23 16:28:53 -04:00
proc.c inet: frag: don't account number of fragment queues 2014-07-27 22:34:36 -07:00
protocol.c net: remove outdated comment for ipv4 and ipv6 protocol handler 2013-11-28 18:47:51 -05:00
raw.c net: use inet6_iif instead of IP6CB()->iif 2014-07-31 22:37:06 -07:00
reassembly.c inet: frags: use kmem_cache for inet_frag_queue 2014-08-02 15:31:31 -07:00
route.c ipv6: remove rt6i_genid 2014-09-30 14:00:48 -04:00
sit.c sit: Fix ipip6_tunnel_lookup device matching criteria 2014-08-14 14:38:54 -07:00
syncookies.c net: remove inet6_reqsk_alloc 2014-06-27 15:53:35 -07:00
sysctl_net_ipv6.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-08-05 18:46:26 -07:00
tcp_ipv6.c tcp: fix tcp_release_cb() to dispatch via address family for mtu_reduced() 2014-08-14 14:38:54 -07:00
tcpv6_offload.c net-gre-gro: Fix a bug that breaks the forwarding path 2014-07-16 14:45:26 -07:00
tunnel6.c ipv4/ipv6: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
udp.c net: use inet6_iif instead of IP6CB()->iif 2014-07-31 22:37:06 -07:00
udp_impl.h net: ipv4/ipv6: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
udp_offload.c gre: Call gso_make_checksum 2014-06-04 22:46:38 -07:00
udplite.c net: Eliminate no_check from protosw 2014-05-23 16:28:53 -04:00
xfrm6_input.c
xfrm6_mode_beet.c ipsec: be careful of non existing mac headers 2012-02-23 16:50:45 -05:00
xfrm6_mode_ro.c ipv4/ipv6: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
xfrm6_mode_transport.c
xfrm6_mode_tunnel.c xfrm6: Remove xfrm_tunnel_notifier 2014-03-14 07:28:08 +01:00
xfrm6_output.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-05-24 00:32:30 -04:00
xfrm6_policy.c xfrm6: Add IPsec protocol multiplexer 2014-03-14 07:28:07 +01:00
xfrm6_protocol.c xfrm6: Properly handle unsupported protocols 2014-05-06 07:08:38 +02:00
xfrm6_state.c xfrm: make local error reporting more robust 2013-08-14 13:07:12 +02:00
xfrm6_tunnel.c ipv4/ipv6: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00