AcoSail/kernel_optimize_test
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72cdd1d971
kernel_optimize_test/include/net
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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
..
9p 9p: Add datasync to client side TFSYNC/RFSYNC for dotl 2010-10-28 09:08:49 -05:00
bluetooth Bluetooth: clean up rfcomm code 2010-10-12 12:44:53 -03:00
caif caif: SPI-driver bugfix - incorrect padding. 2010-11-03 18:50:03 -07:00
irda net: return operator cleanup 2010-09-23 14:33:39 -07:00
iucv include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-10-23 11:47:02 -07:00
netns netns: reorder fields in struct net 2010-10-17 13:49:14 -07:00
phonet Phonet: 'connect' socket implementation for Pipe controller 2010-10-13 14:40:34 -07:00
sctp net: return operator cleanup 2010-09-23 14:33:39 -07:00
tc_act net/sched: add ACT_CSUM action to update packets checksums 2010-08-20 01:42:59 -07:00
tipc tipc: cleanup function namespace 2010-10-16 11:13:24 -07:00
act_api.h pkt_sched: gen_kill_estimator() rcu fixes 2010-06-11 18:37:08 -07:00
addrconf.h ipv6: make __ipv6_isatap_ifid static 2010-10-05 00:47:39 -07:00
af_ieee802154.h af_ieee802154: add support for WANT_ACK socket option 2009-08-12 21:54:50 -07:00
af_rxrpc.h
af_unix.h af_unix: Allow credentials to work across user and pid namespaces. 2010-06-16 14:58:16 -07:00
ah.h net: cleanup include/net 2009-11-04 05:06:25 -08:00
arp.h arp: remove unnecessary export of arp_broken_ops 2010-09-29 19:45:35 -07:00
atmclip.h clip: convert to internal network_device_stats 2009-01-21 14:01:59 -08:00
ax25.h include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ax88796.h ax88796: Add method to take MAC from platform data 2009-03-24 23:32:03 -07:00
cfg80211.h cfg80211: notify drivers about frame registrations 2010-10-13 15:45:22 -04:00
checksum.h
cipso_ipv4.h netlabel: Label incoming TCP connections correctly in SELinux 2009-03-28 15:01:36 +11:00
cls_cgroup.h Merge commit 'v2.6.36-rc7' into core/rcu 2010-10-07 09:43:45 +02:00
compat.h net: fix compat_sys_recvmmsg parameter type 2009-12-11 15:07:56 -08:00
datalink.h
dcbnl.h dcbnl: Add support for setapp/getapp to netdev dcbnl_rtnl_ops 2009-09-01 01:24:30 -07:00
dn_dev.h decnet: RCU conversion and get rid of dev_base_lock 2010-11-08 13:50:08 -08:00
dn_fib.h decnet: Remove unused FIB metric macros. 2010-03-27 19:23:46 -07:00
dn_neigh.h
dn_nsp.h net: use __packed annotation 2010-06-03 03:21:52 -07:00
dn_route.h net-next: remove useless union keyword 2010-06-10 23:31:35 -07:00
dn.h
dsa.h dsa: add switch chip cascading support 2009-03-21 19:06:54 -07:00
dsfield.h
dst_ops.h net dst: need linux/cache.h for ____cacheline_aligned_in_smp. 2010-11-07 19:58:05 -08:00
dst.h decnet: RCU conversion and get rid of dev_base_lock 2010-11-08 13:50:08 -08:00
esp.h
ethoc.h net: Add support for the OpenCores 10/100 Mbps Ethernet MAC. 2009-03-27 00:16:21 -07:00
fib_rules.h fib_rules: __rcu annotates ctarget 2010-10-27 11:37:32 -07:00
flow.h ipv4: Allow configuring subnets as local addresses 2010-09-28 23:38:15 -07:00
garp.h net/802: add __rcu annotations 2010-10-25 13:09:44 -07:00
gen_stats.h net: cleanup include/net 2009-11-04 05:06:25 -08:00
genetlink.h genetlink: introduce pre_doit/post_doit hooks 2010-10-05 13:35:30 -04:00
gre.h PPTP: PPP over IPv4 (Point-to-Point Tunneling Protocol) 2010-08-21 23:05:39 -07:00
icmp.h ipv4: raw: move struct raw_sock and raw_sk() to include/net/raw.h 2010-04-13 14:49:31 -07:00
ieee80211_radiotap.h wireless: update radiotap parser 2010-02-08 16:50:53 -05:00
ieee802154_netdev.h ieee802154: add an mlme_ops call to retrieve PHY object 2009-11-06 14:32:18 +03:00
ieee802154.h ieee802154: move headers out of extra directory 2009-07-23 17:08:51 +04:00
if_inet6.h ipv6: Replace inet6_ifaddr->dead with state 2010-05-18 15:36:06 -07:00
inet6_connection_sock.h net: replace ipfragok with skb->local_df 2010-04-15 23:36:37 -07:00
inet6_hashtables.h tcp: Fix a connect() race with timewait sockets 2009-12-08 20:17:51 -08:00
inet_common.h inet, inet6: make tcp_sendmsg() and tcp_sendpage() through inet_sendmsg() and inet_sendpage() 2010-07-12 20:21:46 -07:00
inet_connection_sock.h tcp: Add TCP_USER_TIMEOUT socket option. 2010-08-30 13:23:33 -07:00
inet_ecn.h net: return operator cleanup 2010-09-23 14:33:39 -07:00
inet_frag.h fragment: add fast path for in-order fragments 2010-06-30 13:44:29 -07:00
inet_hashtables.h tproxy: fix hash locking issue when using port redirection in __inet_inherit_port() 2010-10-21 13:06:43 +02:00
inet_sock.h net - IP_NODEFRAG option for IPv4 socket 2010-06-23 13:16:38 -07:00
inet_timewait_sock.h net: suppress RCU lockdep false positive in twsk_net() 2010-04-27 12:39:01 -07:00
inetpeer.h inetpeer: __rcu annotations 2010-10-27 11:37:33 -07:00
ip6_checksum.h
ip6_fib.h net-next: remove useless union keyword 2010-06-10 23:31:35 -07:00
ip6_route.h net: sk_dst_cache RCUification 2010-04-13 01:41:33 -07:00
ip6_tunnel.h tunnels: add _rcu annotations 2010-10-25 13:09:45 -07:00
ip_fib.h fib: Fix fib zone and its hash leak on namespace stop 2010-10-28 10:27:03 -07:00
ip_vs.h ipvs: provide address family for debugging 2010-10-21 11:04:43 +02:00
ip.h ipv4: add __rcu annotations to ip_ra_chain 2010-10-25 14:18:28 -07:00
ipcomp.h percpu: add __percpu sparse annotations to net 2010-02-16 23:05:38 -08:00
ipconfig.h
ipip.h tunnels: add __rcu annotations 2010-10-27 11:37:32 -07:00
ipv6.h net: return operator cleanup 2010-09-23 14:33:39 -07:00
ipx.h net: use __packed annotation 2010-06-03 03:21:52 -07:00
iw_handler.h include/net/iw_handler.h: Use SIOCIWFIRST not SIOCSIWCOMMIT in comment 2010-03-31 14:49:12 -04:00
lapb.h
lib80211.h lib80211: remove unused host_build_iv option 2010-07-26 15:09:04 -04:00
llc_c_ac.h
llc_c_ev.h
llc_c_st.h
llc_conn.h llc: use a device based hash table to speed up multicast delivery 2009-12-26 20:43:57 -08:00
llc_if.h
llc_pdu.h
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
llc.h llc: convert llc_sap_list to RCU 2009-12-26 20:46:28 -08:00
mac80211.h mac80211: add probe request filter flag 2010-10-13 15:45:22 -04:00
mip6.h net: use __packed annotation 2010-06-03 03:21:52 -07:00
mld.h ipv6 mcast: Introduce include/net/mld.h for MLD definitions. 2010-04-23 13:35:55 +09:00
ndisc.h net: use __packed annotation 2010-06-03 03:21:52 -07:00
neighbour.h neigh: reorder struct neighbour 2010-11-11 10:29:40 -08:00
net_namespace.h net_ns: add __rcu annotations 2010-10-25 14:18:27 -07:00
netdma.h net_dma: convert to dma_find_channel 2009-01-06 11:38:15 -07:00
netevent.h
netlabel.h include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
netlink.h netlink: Make nlmsg_find_attr take a const nlmsghdr*. 2010-11-04 12:26:34 -07:00
netrom.h include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
nexthop.h
nl802154.h ieee802154: add support for channel pages from IEEE 802.15.4-2006 2009-08-19 23:08:22 +04:00
p8022.h
pkt_cls.h net: rename skb->iif to skb->skb_iif 2009-11-20 15:35:04 -08:00
pkt_sched.h net: Define accessors to manipulate QDISC_STATE_RUNNING 2010-06-02 03:23:51 -07:00
protocol.h net: add __rcu annotations to protocol 2010-10-27 11:37:31 -07:00
psnap.h snap: use const for descriptor 2009-03-21 19:06:50 -07:00
raw.h include/net/raw.h: Convert raw_seq_private macro to inline 2010-09-08 13:42:22 -07:00
rawv6.h ipv6: Use correct data types for ICMPv6 type and code 2009-06-23 04:31:07 -07:00
red.h net: cleanup include/net 2009-11-04 05:06:25 -08:00
regulatory.h wireless: only use alpha2 regulatory information from country IE 2010-07-20 16:44:35 -04:00
request_sock.h tcp: account SYN-ACK timeouts & retransmissions 2010-01-17 19:09:39 -08:00
rose.h NET: ROSE: Don't use static buffer. 2009-07-26 19:11:14 -07:00
route.h net: get rid of rtable->idev 2010-11-11 10:29:40 -08:00
rtnetlink.h rtnetlink: remove rtnl_kill_links 2010-10-21 03:09:45 -07:00
sch_generic.h net_sched: remove the unused parameter of qdisc_create_dflt() 2010-10-21 03:09:47 -07:00
scm.h scm: Capture the full credentials of the scm sender. 2010-06-16 14:55:56 -07:00
slhc_vj.h
snmp.h snmp: 64bit ipstats_mib for all arches 2010-06-30 13:31:19 -07:00
sock.h net: add __rcu annotation to sk_filter 2010-10-25 14:18:28 -07:00
stp.h
tcp_states.h
tcp.h tcp: tcp_enter_quickack_mode can be static 2010-09-29 19:45:36 -07:00
timewait_sock.h
transp_v6.h IPv6: Add dontfrag argument to relevant functions 2010-04-23 23:35:28 -07:00
udp.h tproxy: added udp6_lib_lookup function 2010-10-21 16:05:41 +02:00
udplite.h
wext.h wext: refactor 2009-10-07 16:39:43 -04:00
wimax.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
wpan-phy.h ieee802154: add support for creation/removal of logic interfaces 2009-11-06 14:32:24 +03:00
x25.h X25: Move accept approve flag to bitfield 2010-05-17 17:39:27 -07:00
x25device.h X25: Add if_x25.h and x25 to device identifiers 2010-04-22 16:12:36 -07:00
xfrm.h tunnels: add __rcu annotations 2010-10-27 11:37:32 -07:00