alistair23-linux/net/ipv4
Eric Dumazet 72cdd1d971 net: get rid of rtable->idev
It seems idev field in struct rtable has no special purpose, but adding
extra atomic ops.

We hold refcounts on the device itself (using percpu data, so pretty
cheap in current kernel).

infiniband case is solved using dst.dev instead of idev->dev

Removal of this field means routing without route cache is now using
shared data, percpu data, and only potential contention is a pair of
atomic ops on struct neighbour per forwarded packet.

About 5% speedup on routing test.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Roland Dreier <rolandd@cisco.com>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-11 10:29:40 -08:00
..
netfilter ipv4: netfilter: ip_tables: fix information leak to userland 2010-11-03 08:45:06 +01:00
af_inet.c net: build_ehash_secret() and rt_bind_peer() cleanups 2010-08-20 00:50:16 -07:00
ah4.c
arp.c neigh: Protect neigh->ha[] with a seqlock 2010-10-11 12:54:04 -07:00
cipso_ipv4.c Update broken web addresses in the kernel. 2010-10-18 11:03:14 +02:00
datagram.c net: return operator cleanup 2010-09-23 14:33:39 -07:00
devinet.c inet: RCU changes in inetdev_by_index() 2010-10-19 03:50:48 -07:00
esp4.c
fib_frontend.c fib: Fix fib zone and its hash leak on namespace stop 2010-10-28 10:27:03 -07:00
fib_hash.c fib: Fix fib zone and its hash leak on namespace stop 2010-10-28 10:27:03 -07:00
fib_lookup.h fib: fib_result_assign() should not change fib refcounts 2010-11-04 12:05:32 -07:00
fib_rules.c fib: RCU conversion of fib_lookup() 2010-10-05 20:39:38 -07:00
fib_semantics.c fib: introduce fib_alias_accessed() helper 2010-10-21 03:09:41 -07:00
fib_trie.c fib: Fix fib zone and its hash leak on namespace stop 2010-10-28 10:27:03 -07:00
gre.c tunnels: add _rcu annotations 2010-10-25 13:09:45 -07:00
icmp.c net: simplify flags for tx timestamping 2010-08-19 00:08:30 -07:00
igmp.c inet: RCU changes in inetdev_by_index() 2010-10-19 03:50:48 -07:00
inet_connection_sock.c net/ipv4: EXPORT_SYMBOL cleanups 2010-07-12 12:57:54 -07:00
inet_diag.c inet_diag: Make sure we actually run the same bytecode we audited. 2010-11-04 12:26:34 -07:00
inet_fragment.c net/ipv4: EXPORT_SYMBOL cleanups 2010-07-12 12:57:54 -07:00
inet_hashtables.c tproxy: fix hash locking issue when using port redirection in __inet_inherit_port() 2010-10-21 13:06:43 +02:00
inet_lro.c
inet_timewait_sock.c
inetpeer.c inetpeer: __rcu annotations 2010-10-27 11:37:33 -07:00
ip_forward.c
ip_fragment.c net: return operator cleanup 2010-09-23 14:33:39 -07:00
ip_gre.c ip_gre: fix fallback tunnel setup 2010-10-30 16:21:28 -07:00
ip_input.c net: use this_cpu_ptr() 2010-06-28 23:24:29 -07:00
ip_options.c bridge : Sanitize skb before it enters the IP stack 2010-09-19 12:42:34 -07:00
ip_output.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-09-27 01:03:03 -07:00
ip_sockglue.c ipv4: add __rcu annotations to ip_ra_chain 2010-10-25 14:18:28 -07:00
ipcomp.c
ipconfig.c
ipip.c tunnels: Fix tunnels change rcu protection 2010-10-27 14:20:08 -07:00
ipmr.c ipmr: cleanups 2010-10-03 21:50:53 -07:00
Kconfig Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
Makefile PPTP: PPP over IPv4 (Point-to-Point Tunneling Protocol) 2010-08-21 23:05:39 -07:00
netfilter.c
proc.c snmp: 64bit ipstats_mib for all arches 2010-06-30 13:31:19 -07:00
protocol.c net: add __rcu annotations to protocol 2010-10-27 11:37:31 -07:00
raw.c net: simplify flags for tx timestamping 2010-08-19 00:08:30 -07:00
route.c net: get rid of rtable->idev 2010-11-11 10:29:40 -08:00
syncookies.c
sysctl_net_ipv4.c
tcp.c net/ipv4/tcp.c: Update WARN uses 2010-11-09 09:22:32 -08:00
tcp_bic.c
tcp_cong.c net/ipv4: Eliminate kstrdup memory leak 2010-08-27 19:31:56 -07:00
tcp_cubic.c
tcp_diag.c
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c Update broken web addresses in the kernel. 2010-10-18 11:03:14 +02:00
tcp_input.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
tcp_ipv4.c tproxy: fix hash locking issue when using port redirection in __inet_inherit_port() 2010-10-21 13:06:43 +02:00
tcp_lp.c
tcp_minisocks.c net: return operator cleanup 2010-09-23 14:33:39 -07:00
tcp_output.c net: return operator cleanup 2010-09-23 14:33:39 -07:00
tcp_probe.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
tcp_scalable.c
tcp_timer.c tcp: use correct counters in CA_CWR state too 2010-10-17 13:46:33 -07:00
tcp_vegas.c
tcp_vegas.h
tcp_veno.c Update broken web addresses in the kernel. 2010-10-18 11:03:14 +02:00
tcp_westwood.c net: return operator cleanup 2010-09-23 14:33:39 -07:00
tcp_yeah.c
tunnel4.c tunnels: add __rcu annotations 2010-10-27 11:37:32 -07:00
udp.c net: add __rcu annotation to sk_filter 2010-10-25 14:18:28 -07:00
udp_impl.h
udplite.c net/ipv4: EXPORT_SYMBOL cleanups 2010-07-12 12:57:54 -07:00
xfrm4_input.c net/ipv4: EXPORT_SYMBOL cleanups 2010-07-12 12:57:54 -07:00
xfrm4_mode_beet.c
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c
xfrm4_output.c
xfrm4_policy.c net: get rid of rtable->idev 2010-11-11 10:29:40 -08:00
xfrm4_state.c xfrm: Allow different selector family in temporary state 2010-09-20 11:11:38 -07:00
xfrm4_tunnel.c net: struct xfrm_tunnel in read_mostly section 2010-08-30 13:50:45 -07:00