Pablo Neira Ayuso c05cdb1b86 netlink: allow large data transfers from user-space ... I can hit ENOBUFS in the sendmsg() path with a large batch that is composed of many netlink messages. Here that limit is 8 MBytes of skbuff data area as kmalloc does not manage to get more than that. While discussing atomic rule-set for nftables with Patrick McHardy, we decided to put all rule-set updates that need to be applied atomically in one single batch to simplify the existing approach. However, as explained above, the existing netlink code limits us to a maximum of ~20000 rules that fit in one single batch without hitting ENOBUFS. iptables does not have such limitation as it is using vmalloc. This patch adds netlink_alloc_large_skb() which is only used in the netlink_sendmsg() path. It uses alloc_skb if the memory requested is <= one memory page, that should be the common case for most subsystems, else vmalloc for higher memory allocations. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2013-06-07 16:26:34 -07:00
..
9p	Lots of virtio work which wasn't quite ready for last merge window. Plus	2013-05-02 14:14:04 -07:00
802	net/802/mrp: fix lockdep splat	2013-05-14 13:02:30 -07:00
8021q	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
appletalk	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
atm	net: always pass struct netdev_notifier_info to netdevice notifiers	2013-05-28 21:58:54 -07:00
ax25	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
batman-adv	batman-adv: Start new development cycle	2013-05-29 02:44:56 +02:00
bluetooth	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
bridge	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next	2013-06-06 01:03:06 -07:00
caif	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
can	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
ceph	libceph: init sent and completed when starting	2013-05-13 12:52:23 -05:00
core	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-06-05 16:37:30 -07:00
dcb	rtnetlink: Remove passing of attributes into rtnl_doit functions	2013-03-22 10:31:16 -04:00
dccp	tcp: Remove TCPCT	2013-03-17 14:35:13 -04:00
decnet	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
dns_resolver	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2012-12-16 15:40:50 -08:00
dsa	dsa: fix freeing of sparse port allocation	2013-03-25 12:23:41 -04:00
ethernet	net: add ETH_P_802_3_MIN	2013-03-28 01:20:42 -04:00
ieee802154	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
ipv4	net: tcp: move GRO/GSO functions to tcp_offload	2013-06-07 14:39:05 -07:00
ipv6	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-06-05 16:37:30 -07:00
ipx	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
irda	net: irda: using kzalloc() instead of kmalloc() to avoid strncpy() issue.	2013-05-19 15:10:47 -07:00
iucv	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
key	xfrm: force a garbage collection after deleting a policy	2013-05-31 17:30:07 -07:00
l2tp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-04-07 18:37:01 -04:00
lapb	net/lapb: remove depends on CONFIG_EXPERIMENTAL	2013-01-11 11:40:01 -08:00
llc	llc: Fix missing msg_namelen update in llc_ui_recvmsg()	2013-04-07 16:28:01 -04:00
mac80211	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-06-05 16:37:30 -07:00
mac802154	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-04-30 03:55:20 -04:00
mpls	MPLS: Add limited GSO support	2013-05-27 22:50:59 -07:00
netfilter	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next	2013-06-06 01:03:06 -07:00
netlabel	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
netlink	netlink: allow large data transfers from user-space	2013-06-07 16:26:34 -07:00
netrom	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
nfc	NFC: Remove commented out LLCP related Makefile line	2013-05-21 10:47:41 +02:00
openvswitch	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
packet	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
phonet	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
rds	net/rds: zero last byte for strncpy	2013-03-08 00:35:44 -05:00
rfkill	Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next	2013-04-22 14:58:14 -04:00
rose	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
rxrpc	Driver core patches for 3.9-rc1	2013-02-21 12:05:51 -08:00
sched	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-06-05 16:37:30 -07:00
sctp	sctp: Correct byte order of access to skb->{network, transport}_header	2013-05-31 01:41:36 -07:00
sunrpc	Merge branch 'for-3.10' of git://linux-nfs.org/~bfields/linux	2013-05-31 09:48:56 +09:00
tipc	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
unix	af_unix: fix a fatal race with bit fields	2013-05-01 15:13:49 -04:00
vmw_vsock	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-04-30 03:55:20 -04:00
wimax
wireless	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-06-05 16:37:30 -07:00
x25	net: pass info struct via netdevice notifier	2013-05-28 13:11:01 -07:00
xfrm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-06-05 16:37:30 -07:00
compat.c	net: Unbreak compat_sys_{send,recv}msg	2013-06-06 11:52:14 -07:00
Kconfig	MPLS: Add limited GSO support	2013-05-27 22:50:59 -07:00
Makefile	MPLS: Add limited GSO support	2013-05-27 22:50:59 -07:00
nonet.c
socket.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-06-06 23:39:26 -07:00
sysctl_net.c	user_ns: get rid of duplicate code in net_ctl_permissions	2012-11-18 20:32:45 -05:00