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f04565ddf5
linux/net
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Mihai Maruseac f04565ddf5 dev: use name hash for dev_seq_ops 
Instead of using the dev->next chain and trying to resync at each call to
dev_seq_start, use the name hash, keeping the bucket and the offset in
seq->private field.

Tests revealed the following results for ifconfig > /dev/null
	* 1000 interfaces:
		* 0.114s without patch
		* 0.089s with patch
	* 3000 interfaces:
		* 0.489s without patch
		* 0.110s with patch
	* 5000 interfaces:
		* 1.363s without patch
		* 0.250s with patch
	* 128000 interfaces (other setup):
		* ~100s without patch
		* ~30s with patch

Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-21 02:54:38 -04:00
..
9p net/9p: Fix kernel crash with msize 512K 2011-09-06 08:17:15 -05:00
802 rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER 2011-08-02 04:29:23 -07:00
8021q net: consolidate and fix ethtool_ops->get_settings calling 2011-09-15 17:32:26 -04:00
appletalk net: add skb frag size accessors 2011-10-19 03:10:46 -04:00
atm Merge branch 'master' of github.com:davem330/net 2011-09-22 03:23:13 -04:00
ax25
batman-adv Merge branch 'master' of github.com:davem330/net 2011-10-07 13:38:43 -04:00
bluetooth Merge branch 'master' of git://git.infradead.org/users/linville/wireless-next into for-davem 2011-10-11 15:35:42 -04:00
bridge Merge branch 'master' of github.com:davem330/net 2011-10-07 13:38:43 -04:00
caif caif: add error handling for allocation 2011-10-03 13:45:49 -04:00
can can: remove references to berlios mailinglist 2011-10-17 19:22:46 -04:00
ceph Merge branch 'for-linus' of git://github.com/NewDreamNetwork/ceph-client 2011-09-29 19:58:58 -07:00
core dev: use name hash for dev_seq_ops 2011-10-21 02:54:38 -04:00
dcb dcb: add DCBX mode to event notifier attributes 2011-10-06 15:49:51 -04:00
dccp Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net 2011-08-07 23:20:26 -07:00
decnet rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER 2011-08-02 04:29:23 -07:00
dns_resolver
dsa net: remove use of ndo_set_multicast_list in drivers 2011-08-17 20:22:03 -07:00
econet
ethernet net: don't clear IFF_XMIT_DST_RELEASE in ether_setup 2011-09-15 14:49:44 -04:00
ieee802154 6LoWPAN: fix skb_copy call 2011-09-15 15:36:35 -04:00
ipv4 net: allow CAP_NET_RAW to set socket options IP{,V6}_TRANSPARENT 2011-10-20 18:21:36 -04:00
ipv6 net: allow CAP_NET_RAW to set socket options IP{,V6}_TRANSPARENT 2011-10-20 18:21:36 -04:00
ipx
irda Merge branch 'master' of github.com:davem330/net 2011-09-22 03:23:13 -04:00
iucv net: more accurate skb truesize 2011-10-13 16:05:07 -04:00
key
l2tp l2tp: give proper headroom in pppol2tp_xmit() 2011-10-18 23:33:44 -04:00
lapb wan: make LAPB callbacks const 2011-09-16 19:20:20 -04:00
llc
mac80211 Merge branch 'master' of git://git.infradead.org/users/linville/wireless-next into for-davem 2011-10-17 15:05:26 -04:00
netfilter Merge branch 'master' of github.com:davem330/net 2011-10-07 13:38:43 -04:00
netlabel Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net 2011-08-20 10:39:12 -07:00
netlink af_unix: dont send SCM_CREDENTIALS by default 2011-09-28 13:29:50 -04:00
netrom
nfc NFC: use after free on error 2011-09-27 14:34:10 -04:00
packet macvlan: handle fragmented multicast frames 2011-10-18 23:22:07 -04:00
phonet rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER 2011-08-02 04:29:23 -07:00
rds Merge branch 'master' of github.com:davem330/net 2011-10-07 13:38:43 -04:00
rfkill net:rfkill: add a gpio setup function into GPIO rfkill 2011-10-03 15:19:19 -04:00
rose
rxrpc
sched Merge branch 'master' of github.com:davem330/net 2011-09-22 03:23:13 -04:00
sctp net: more accurate skb truesize 2011-10-13 16:05:07 -04:00
sunrpc rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER 2011-08-02 04:29:23 -07:00
tipc tipc: Remove unused link event tracking code 2011-09-17 22:55:15 -04:00
unix af_unix: dont send SCM_CREDENTIALS by default 2011-09-28 13:29:50 -04:00
wanrouter
wimax
wireless nl80211: Add sta_flags to the station info 2011-10-14 14:48:23 -04:00
x25
xfrm net: add skb frag size accessors 2011-10-19 03:10:46 -04:00
compat.c
Kconfig
Makefile
nonet.c
socket.c Merge branch 'master' of github.com:davem330/net 2011-09-22 03:23:13 -04:00
sysctl_net.c