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b3832117b4
linux/net
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Alexander Duyck b3832117b4 fib_trie: Use index & (~0ul << n->bits) instead of index >> n->bits 
In doing performance testing and analysis of the changes I recently found
that by shifting the index I had created an unnecessary dependency.

I have updated the code so that we instead shift a mask by bits and then
just test against that as that should save us about 2 CPU cycles since we
can generate the mask while the key and pos are being processed.

Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-25 14:47:15 -08:00
..
6lowpan net/6lowpan: Remove FSF address from GPL statement. 2014-12-05 12:43:04 +01:00
9p 9p/trans_virtio: enable VQs early 2014-10-15 10:25:04 +10:30
802
8021q vlan: advertise link netns via netlink 2015-01-23 17:51:15 -08:00
appletalk new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
atm put iov_iter into msghdr 2014-12-09 16:29:03 -05:00
ax25 new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
batman-adv batman-adv: Kconfig, Add missing DEBUG_FS dependency 2015-01-07 22:17:11 +01:00
bluetooth Bluetooth: Remove unused function 2015-01-16 13:06:38 +02:00
bridge net: bridge: reject DSA-enabled master netdevices as bridge members 2015-01-19 15:45:10 -05:00
caif put iov_iter into msghdr 2014-12-09 16:29:03 -05:00
can netlink: make nlmsg_end() and genlmsg_end() void 2015-01-18 01:03:45 -05:00
ceph libceph: fix sparse endianness warnings 2015-01-08 20:36:57 +03:00
core vxlan: advertise netns of vxlan dev in fdb msg 2015-01-23 17:51:15 -08:00
dcb dcbnl : Disable software interrupts before taking dcb_lock 2014-11-16 14:50:52 -05:00
dccp net: introduce helper macro for_each_cmsghdr 2014-12-10 22:41:55 -05:00
decnet netlink: Fix bugs in nlmsg_end() conversions. 2015-01-18 23:36:08 -05:00
dns_resolver Merge commit 'v3.16' into next 2014-10-01 00:44:04 +10:00
dsa Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ethernet net: Add Transparent Ethernet Bridging GRO support. 2015-01-02 15:46:41 -05:00
hsr
ieee802154 netlink: make nlmsg_end() and genlmsg_end() void 2015-01-18 01:03:45 -05:00
ipv4 fib_trie: Use index & (~0ul << n->bits) instead of index >> n->bits 2015-01-25 14:47:15 -08:00
ipv6 udp: Do not require sock in udp_tunnel_xmit_skb 2015-01-24 23:15:40 -08:00
ipx switch ipxrtr_route_packet() from iovec to msghdr 2014-11-24 04:28:49 -05:00
irda irda: Convert function pointer arrays and uses to const 2014-12-10 15:33:16 -05:00
iucv net: introduce helper macro for_each_cmsghdr 2014-12-10 22:41:55 -05:00
key new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
l2tp netlink: make nlmsg_end() and genlmsg_end() void 2015-01-18 01:03:45 -05:00
lapb lapb: move EXPORT_SYMBOL after functions. 2014-10-24 15:51:42 -04:00
llc llc: Make llc_sap_action_t function pointer arrays const 2014-12-10 15:21:24 -05:00
mac80211 mac80211: delete the assoc/auth timer upon suspend 2015-01-19 18:59:20 +01:00
mac802154 mac802154: fix kbuild test robot warning 2015-01-03 01:51:51 +01:00
mpls mpls: Fix allowed protocols for mpls gso 2014-12-23 23:57:31 -05:00
netfilter netlink: make nlmsg_end() and genlmsg_end() void 2015-01-18 01:03:45 -05:00
netlabel netlink: make nlmsg_end() and genlmsg_end() void 2015-01-18 01:03:45 -05:00
netlink netlink: make nlmsg_end() and genlmsg_end() void 2015-01-18 01:03:45 -05:00
netrom new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
nfc netlink: make nlmsg_end() and genlmsg_end() void 2015-01-18 01:03:45 -05:00
openvswitch vxlan: Eliminate dependency on UDP socket in transmit path 2015-01-24 23:15:40 -08:00
packet netlink: make nlmsg_end() and genlmsg_end() void 2015-01-18 01:03:45 -05:00
phonet phonet netlink: allow multiple messages per skb in route dump 2015-01-19 16:20:17 -05:00
rds rds: Fix min() warning in rds_message_inc_copy_to_user() 2014-12-15 11:49:09 -05:00
rfkill Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
rose new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
rxrpc net: introduce helper macro for_each_cmsghdr 2014-12-10 22:41:55 -05:00
sched act_connmark: Add missing dependency on NF_CONNTRACK_MARK 2015-01-23 17:46:09 -08:00
sctp net: introduce helper macro for_each_cmsghdr 2014-12-10 22:41:55 -05:00
sunrpc rpc: fix xdr_truncate_encode to handle buffer ending on page boundary 2015-01-07 14:03:58 -05:00
switchdev switchdev: introduce switchdev notifier 2015-01-18 00:23:57 -05:00
tipc tipc: fix socket list regression in new nl api 2015-01-18 00:27:05 -05:00
unix netlink: make nlmsg_end() and genlmsg_end() void 2015-01-18 01:03:45 -05:00
vmw_vsock put iov_iter into msghdr 2014-12-09 16:29:03 -05:00
wimax wimax: convert printk to pr_foo() 2014-10-07 20:28:44 -04:00
wireless Some further updates for net-next: 2015-01-19 16:22:19 -05:00
x25 new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
xfrm netlink: make nlmsg_end() and genlmsg_end() void 2015-01-18 01:03:45 -05:00
compat.c put iov_iter into msghdr 2014-12-09 16:29:03 -05:00
Kconfig net: introduce generic switch devices support 2014-12-02 20:01:20 -08:00
Makefile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2014-12-16 15:53:03 -08:00
socket.c socket: use ki_nbytes instead of iov_length() 2015-01-17 23:58:37 -05:00
sysctl_net.c