David S. Miller 99c4a26a15 net: Fix high overhead of vlan sub-device teardown. ... When a networking device is taken down that has a non-trivial number of VLAN devices configured under it, we eat a full synchronize_net() for every such VLAN device. This is because of the call chain: NETDEV_DOWN notifier --> vlan_device_event() --> dev_change_flags() --> __dev_change_flags() --> __dev_close() --> __dev_close_many() --> dev_deactivate_many() --> synchronize_net() This is kind of rediculous because we already have infrastructure for batching doing operation X to a list of net devices so that we only incur one sync. So make use of that by exporting dev_close_many() and adjusting it's interfaace so that the caller can fully manage the batch list. Use this in vlan_device_event() and all the overhead goes away. Reported-by: Salam Noureddine <noureddine@arista.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-03-18 22:52:56 -04:00
..
6lowpan	6lowpan: nhc: add other known rfc6282 compressions	2015-02-14 23:08:44 +01:00
9p	net: Introduce possible_net_t	2015-03-12 14:39:40 -04:00
802	net: Kill dev_rebuild_header	2015-03-02 16:43:41 -05:00
8021q	net: Fix high overhead of vlan sub-device teardown.	2015-03-18 22:52:56 -04:00
appletalk	appletalk: Use eth_<foo>_addr instead of memset	2015-03-03 17:01:37 -05:00
atm	atm: Use eth_<foo>_addr instead of memset	2015-03-03 17:01:37 -05:00
ax25	ax25: Fix the build when CONFIG_INET is disabled	2015-03-05 13:17:39 -05:00
batman-adv	batman-adv: Fix use of seq_has_overflowed()	2015-02-22 17:00:08 -05:00
bluetooth	Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next	2015-03-14 14:29:45 -04:00
bridge	netfilter: bridge: use rcu hook to resolve br_netfilter dependency	2015-03-10 15:03:02 +01:00
caif	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-03-03 21:16:48 -05:00
can	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-03-09 23:38:02 -04:00
ceph	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2015-02-19 14:14:42 -08:00
core	net: Fix high overhead of vlan sub-device teardown.	2015-03-18 22:52:56 -04:00
dcb	net/dcb: Add IEEE QCN attribute	2015-03-06 21:50:02 -05:00
dccp	inet: request sock should init IPv6/IPv4 addresses	2015-03-18 22:00:35 -04:00
decnet	net: Remove protocol from struct dst_ops	2015-03-09 16:06:10 -04:00
dns_resolver
dsa	dsa: change "select" to "depends on" for NET_SWITCHDEV and for NET_DSA	2015-03-16 16:29:18 -04:00
ethernet	ethernet: Use eth_<foo>_addr instead of memset	2015-03-03 17:01:38 -05:00
hsr	net/hsr: Fix NULL pointer dereference and refcnt bugs when deleting a HSR interface.	2015-03-01 13:40:23 -05:00
ieee802154	ieee802154: don't export static symbol	2015-03-14 17:11:31 +01:00
ipv4	inet: add a schedule point in inet_twsk_purge()	2015-03-18 22:38:13 -04:00
ipv6	ipv4, ipv6: kill ip_mc_{join, leave}_group and ipv6_sock_mc_{join, drop}	2015-03-18 22:05:09 -04:00
ipx	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
irda	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-03-09 23:38:02 -04:00
iucv	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
key	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
l2tp	l2tp: Use eth_<foo>_addr instead of memset	2015-03-03 17:01:38 -05:00
lapb
llc	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
mac80211	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-03-03 21:16:48 -05:00
mac802154	mac802154: correct max sifs size handling	2015-03-14 17:11:30 +01:00
mpls	mpls: In mpls_egress verify the packet length.	2015-03-12 23:05:04 -04:00
netfilter	ipv4, ipv6: kill ip_mc_{join, leave}_group and ipv6_sock_mc_{join, drop}	2015-03-18 22:05:09 -04:00
netlabel	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2015-02-11 20:25:11 -08:00
netlink	netlink: Use rhashtable max_size instead of max_shift	2015-03-18 12:46:40 -04:00
netrom	net: Kill dev_rebuild_header	2015-03-02 16:43:41 -05:00
nfc	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
openvswitch	net: Introduce possible_net_t	2015-03-12 14:39:40 -04:00
packet	net: Introduce possible_net_t	2015-03-12 14:39:40 -04:00
phonet	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
rds	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
rfkill	Last round of updates for net-next:	2015-02-04 14:57:45 -08:00
rose	net: Kill dev_rebuild_header	2015-03-02 16:43:41 -05:00
rxrpc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-03-09 23:38:02 -04:00
sched	cls_bpf: do eBPF invocation under non-bh RCU lock variant for maps	2015-03-12 18:33:15 -04:00
sctp	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
sunrpc	sunrpc: fix braino in ->poll()	2015-03-08 12:53:46 -07:00
switchdev	switchdev: use new swdev ops	2015-03-16 00:14:43 -04:00
tipc	ipv4, ipv6: kill ip_mc_{join, leave}_group and ipv6_sock_mc_{join, drop}	2015-03-18 22:05:09 -04:00
unix	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
vmw_vsock	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
wimax
wireless	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-03-03 21:16:48 -05:00
x25	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
xfrm	netlink: make nlmsg_end() and genlmsg_end() void	2015-01-18 01:03:45 -05:00
compat.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-03-03 21:16:48 -05:00
Kconfig	kconfig: use bool instead of boolean for type definition attributes	2015-01-07 13:08:04 +01:00
Makefile	mpls: Refactor how the mpls module is built	2015-03-04 00:26:06 -05:00
socket.c	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
sysctl_net.c