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7a9bc9b81a
linux/net
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David S. Miller 7a9bc9b81a ipv4: Elide fib_validate_source() completely when possible. 
If rpfilter is off (or the SKB has an IPSEC path) and there are not
tclassid users, we don't have to do anything at all when
fib_validate_source() is invoked besides setting the itag to zero.

We monitor tclassid uses with a counter (modified only under RTNL and
marked __read_mostly) and we protect the fib_validate_source() real
work with a test against this counter and whether rpfilter is to be
done.

Having a way to know whether we need no tclassid processing or not
also opens the door for future optimized rpfilter algorithms that do
not perform full FIB lookups.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-29 01:36:36 -07:00
..
9p Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-06-28 17:37:00 -07:00
802 tokenring: delete all remaining driver support 2012-05-15 20:23:16 -04:00
8021q Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-05-16 22:17:37 -04:00
appletalk appletalk: Remove out of date message in printk 2012-06-07 13:11:59 -07:00
atm net: Remove casts to same type 2012-06-04 11:45:11 -04:00
ax25 net: use consume_skb() in place of kfree_skb() 2012-06-04 11:27:40 -04:00
batman-adv batman-adv: Prefix main defines with BATADV_ 2012-06-28 08:45:05 +02:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-06-28 17:37:00 -07:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-06-28 17:37:00 -07:00
caif Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-06-28 17:37:00 -07:00
can canfd: add support for CAN FD in CAN_RAW sockets 2012-06-19 21:40:08 +02:00
ceph libceph: flush msgr queue during mon_client shutdown 2012-06-20 07:43:50 -05:00
core ipv4: Elide fib_validate_source() completely when possible. 2012-06-29 01:36:36 -07:00
dcb net: dcb: fix small regression in __dcbnl_pg_setcfg() 2012-06-21 15:06:00 -07:00
dccp ipv4: tcp: dont cache output dst for syncookies 2012-06-22 21:47:33 -07:00
decnet netlink: Get rid of obsolete rtnetlink macros 2012-06-27 15:36:44 -07:00
dns_resolver Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2012-05-21 20:27:36 -07:00
dsa dsa: Convert compare_ether_addr to ether_addr_equal 2012-05-09 20:49:19 -04:00
ethernet net, drivers/net: Convert compare_ether_addr_64bits to ether_addr_equal_64bits 2012-05-10 23:33:01 -04:00
ieee802154 net: Use NLMSG_DEFAULT_SIZE in combination with nlmsg_new() 2012-06-28 17:56:43 -07:00
ipv4 ipv4: Elide fib_validate_source() completely when possible. 2012-06-29 01:36:36 -07:00
ipv6 ipv6_tunnel: Allow receiving packets on the fallback tunnel if they pass sanity checks 2012-06-29 00:52:32 -07:00
ipx ipx: Remove spurious NULL checking in ipx_ioctl(). 2012-05-19 00:51:04 -04:00
irda net: Remove casts to same type 2012-06-04 11:45:11 -04:00
iucv net: remove skb_orphan_try() 2012-06-15 15:30:15 -07:00
key net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
l2tp net: l2tp_eth: provide tx_dropped counter 2012-06-29 00:52:32 -07:00
lapb lapb: Neaten debugging 2012-05-17 18:45:20 -04:00
llc net: include/net/sock.h cleanup 2012-05-17 04:50:21 -04:00
mac80211 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-06-28 17:37:00 -07:00
mac802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-06-28 17:37:00 -07:00
netfilter netfilter: nfnetlink_queue_core: Move away from NLMSG_PUT(). 2012-06-26 21:35:27 -07:00
netlabel
netlink genetlink: Build a generic netlink family module alias 2012-05-29 22:33:56 -04:00
netrom net: Convert all sysctl registrations to register_net_sysctl 2012-04-20 21:22:30 -04:00
nfc net: Use NLMSG_DEFAULT_SIZE in combination with nlmsg_new() 2012-06-28 17:56:43 -07:00
openvswitch Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-05-16 22:17:37 -04:00
packet net: added support for 40GbE link. 2012-06-27 15:42:24 -07:00
phonet net: remove my future former mail address 2012-06-17 16:29:38 -07:00
rds rds_rdma: don't assume infiniband device is PCI 2012-05-29 17:30:07 -04:00
rfkill rfkill: Add the capability to switch all devices of all type in __rfkill_switch_all(). 2012-06-06 15:18:17 -04:00
rose net: Convert all sysctl registrations to register_net_sysctl 2012-04-20 21:22:30 -04:00
rxrpc ipv4: Kill ip_rt_frag_needed(). 2012-06-11 02:08:59 -07:00
sched pkt_sched: sch_api: Move away from NLMSG_NEW(). 2012-06-26 21:54:15 -07:00
sctp sctp: fix warning when compiling without IPv6 2012-06-19 00:26:26 -07:00
sunrpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-06-28 17:37:00 -07:00
tipc net: Remove casts to same type 2012-06-04 11:45:11 -04:00
unix unix_diag: Do not use RTA_PUT() macros 2012-06-27 15:36:43 -07:00
wanrouter net/wanrouter: Deprecate and schedule for removal 2012-05-24 16:22:53 -04:00
wimax net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
wireless net: Use NLMSG_DEFAULT_SIZE in combination with nlmsg_new() 2012-06-28 17:56:43 -07:00
x25 net: add a limit parameter to sk_add_backlog() 2012-04-23 22:28:28 -04:00
xfrm xfrm_user: Propagate netlink error codes properly. 2012-06-27 21:57:03 -07:00
compat.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2012-05-21 20:27:36 -07:00
Kconfig net: drop NET dependency from HAVE_BPF_JIT 2012-05-21 12:50:12 -07:00
Makefile econet: remove ancient bug ridden protocol 2012-05-18 01:35:08 -04:00
nonet.c
socket.c Merge branch 'for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2012-05-22 17:37:47 -07:00
sysctl_net.c net: delete all instances of special processing for token ring 2012-05-15 20:14:35 -04:00