linux/net
Thomas Graf 1f324e3887 ipv6: Don't depend on per socket memory for neighbour discovery messages
Allocating skbs when sending out neighbour discovery messages
currently uses sock_alloc_send_skb() based on a per net namespace
socket and thus share a socket wmem buffer space.

If a netdevice is temporarily unable to transmit due to carrier
loss or for other reasons, the queued up ndisc messages will cosnume
all of the wmem space and will thus prevent from any more skbs to
be allocated even for netdevices that are able to transmit packets.

The number of neighbour discovery messages sent is very limited,
simply use alloc_skb() and don't depend on any socket wmem space any
longer.

This patch has orginally been posted by Eric Dumazet in a modified
form.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29 16:01:05 -04:00
..
9p Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-07-13 17:42:22 -07:00
802 net/802/mrp: fix lockdep splat 2013-05-14 13:02:30 -07:00
8021q vlan: make vlan_dev_real_dev work over stacked vlans 2013-08-05 12:17:42 -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: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
batman-adv batman-adv: check return type of unicast packet preparations 2013-08-17 20:02:32 +02:00
bluetooth Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth 2013-07-31 15:11:50 -04:00
bridge bridge: Use the correct bit length for bitmap functions in the VLAN code 2013-08-20 23:35:57 -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: call r_unsafe_callback when unsafe reply is received 2013-07-03 15:32:58 -07:00
core net: Check the correct namespace when spoofing pid over SCM_RIGHTS 2013-08-27 13:52:52 -04:00
dcb
dccp
decnet net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
dns_resolver net: strict_strtoul is obsolete, use kstrtoul instead 2013-07-12 16:09:14 -07:00
dsa
ethernet net: Fix sysfs_format_mac() code duplication. 2013-07-16 17:09:22 -07:00
ieee802154 net: pass info struct via netdevice notifier 2013-05-28 13:11:01 -07:00
ipv4 ipv4: sendto/hdrincl: don't use destination address found in header 2013-08-29 15:57:52 -04:00
ipv6 ipv6: Don't depend on per socket memory for neighbour discovery messages 2013-08-29 16:01:05 -04:00
ipx net: pass info struct via netdevice notifier 2013-05-28 13:11:01 -07:00
irda net/irda: fixed style issues in irlan_eth 2013-07-16 12:16:03 -07:00
iucv net: delete __cpuinit usage from all net files 2013-07-14 19:36:58 -04:00
key af_key: more info leaks in pfkey messages 2013-07-30 16:26:16 -07:00
l2tp l2tp: make datapath resilient to packet loss when sequence numbers enabled 2013-07-02 16:33:25 -07:00
lapb
llc llc: Fix missing msg_namelen update in llc_ui_recvmsg() 2013-04-07 16:28:01 -04:00
mac80211 mac80211: ibss: fix ignored channel parameter 2013-08-21 15:33:08 +02:00
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 netfilter: nf_conntrack: fix tcp_in_window for Fast Open 2013-08-10 18:36:22 +02:00
netlabel netlabel: use domain based selectors when address based selectors are not available 2013-08-02 16:57:01 -07:00
netlink genl: Hold reference on correct module while netlink-dump. 2013-08-28 17:19:17 -04:00
netrom net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
nfc NFC: netlink: Rename CMD_FW_UPLOAD to CMD_FW_DOWNLOAD 2013-07-31 01:19:43 +02:00
openvswitch openvswitch: Reset tunnel key between input and output. 2013-08-14 15:50:36 -07:00
packet packet: restore packet statistics tp_packets to include drops 2013-08-20 17:23:58 -07:00
phonet net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
rds net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
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: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
rxrpc
sched net_sched: restore "linklayer atm" handling 2013-08-15 01:43:08 -07:00
sctp net: sctp: sctp_transport_destroy{, _rcu}: fix potential pointer corruption 2013-08-12 22:13:47 -07:00
sunrpc SUNRPC: If the rpcbind channel is disconnected, fail the call to unregister 2013-08-07 17:07:18 -04:00
tipc tipc: avoid possible deadlock while enable and disable bearer 2013-08-11 21:58:41 -07:00
unix Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-07-09 18:24:39 -07:00
vmw_vsock net/vmw_vsock/af_vsock.c: drop unneeded semicolon 2013-08-05 11:07:44 -07:00
wimax
wireless cfg80211: don't request disconnect if not connected 2013-08-14 14:00:19 +02:00
x25 x25: Fix broken locking in ioctl error paths. 2013-07-01 18:15:25 -07:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2013-06-26 13:23:13 -07:00
compat.c net: Unbreak compat_sys_{send,recv}msg 2013-06-06 11:52:14 -07:00
Kconfig net: rename CONFIG_NET_LL_RX_POLL to CONFIG_NET_RX_BUSY_POLL 2013-08-01 15:11:17 -07:00
Makefile MPLS: Add limited GSO support 2013-05-27 22:50:59 -07:00
nonet.c
socket.c net: rename CONFIG_NET_LL_RX_POLL to CONFIG_NET_RX_BUSY_POLL 2013-08-01 15:11:17 -07:00
sysctl_net.c