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Keller, Jacob E 7d4c04fc17 net: add option to enable error queue packets waking select 
Currently, when a socket receives something on the error queue it only wakes up
the socket on select if it is in the "read" list, that is the socket has
something to read. It is useful also to wake the socket if it is in the error
list, which would enable software to wait on error queue packets without waking
up for regular data on the socket. The main use case is for receiving
timestamped transmit packets which return the timestamp to the socket via the
error queue. This enables an application to select on the socket for the error
queue only instead of for the regular traffic.

-v2-
* Added the SO_SELECT_ERR_QUEUE socket option to every architechture specific file
* Modified every socket poll function that checks error queue

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jeffrey Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Matthew Vick <matthew.vick@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-31 19:44:20 -04:00
..
9p Revert parts of "hlist: drop the node parameter from iterators" 2013-03-08 15:05:34 -08:00
802 mrp: make mrp_rcv static 2013-02-11 14:16:26 -05:00
8021q 8021q: fix a potential use-after-free 2013-03-24 17:27:28 -04:00
appletalk hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
atm net: add ETH_P_802_3_MIN 2013-03-28 01:20:42 -04:00
ax25 hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
batman-adv batman-adv: use seq_puts instead of seq_printf when the format is constant 2013-03-27 10:29:55 +01:00
bluetooth net: add option to enable error queue packets waking select 2013-03-31 19:44:20 -04:00
bridge bridge: remove unused variable ifm 2013-03-28 14:41:19 -04:00
caif CAIF: fix indentation for function arguments 2013-03-07 16:24:45 -05:00
can rtnetlink: Remove passing of attributes into rtnl_doit functions 2013-03-22 10:31:16 -04:00
ceph Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2013-03-12 09:22:42 -07:00
core net: add option to enable error queue packets waking select 2013-03-31 19:44:20 -04:00
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-next: replace obsolete NLMSG_* with type safe nlmsg_* 2013-03-28 14:25:25 -04:00
dns_resolver
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 netlink: fix the warning introduced by netlink API replacement 2013-03-29 14:44:37 -04:00
ipv4 ip_gre: don't overwrite iflink during net_dev init 2013-03-30 17:28:33 -04:00
ipv6 net-next: replace obsolete NLMSG_* with type safe nlmsg_* 2013-03-28 14:25:25 -04:00
ipx hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
irda net/irda: add missing error path release_sock call 2013-03-20 12:23:13 -04:00
iucv net: add option to enable error queue packets waking select 2013-03-31 19:44:20 -04:00
key afkey: fix a typo 2013-03-07 16:26:45 -05:00
l2tp l2tp: calling the ref() instead of deref() 2013-03-22 14:39:24 -04:00
lapb net/lapb: remove depends on CONFIG_EXPERIMENTAL 2013-01-11 11:40:01 -08:00
llc hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
mac80211 net: add ETH_P_802_3_MIN 2013-03-28 01:20:42 -04:00
mac802154 mac802154: add mac802154_dev_get_dsn() 2013-03-26 12:37:58 -04:00
netfilter net-next: replace obsolete NLMSG_* with type safe nlmsg_* 2013-03-28 14:25:25 -04:00
netlabel netlabel: fix build problems when CONFIG_IPV6=n 2013-03-08 11:33:51 -05:00
netlink net-next: replace obsolete NLMSG_* with type safe nlmsg_* 2013-03-28 14:25:25 -04:00
netrom hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
nfc net: add option to enable error queue packets waking select 2013-03-31 19:44:20 -04:00
openvswitch net: add ETH_P_802_3_MIN 2013-03-28 01:20:42 -04:00
packet net: switch to use skb_probe_transport_header() 2013-03-27 12:48:31 -04:00
phonet rtnetlink: Remove passing of attributes into rtnl_doit functions 2013-03-22 10:31:16 -04:00
rds net/rds: zero last byte for strncpy 2013-03-08 00:35:44 -05:00
rfkill net: rfkill: Fix sparse warning in rfkill-regulator.c 2013-03-06 16:35:41 +01:00
rose hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
rxrpc Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
sched net-next: replace obsolete NLMSG_* with type safe nlmsg_* 2013-03-28 14:25:25 -04:00
sctp net: add option to enable error queue packets waking select 2013-03-31 19:44:20 -04:00
sunrpc NFS client bugfixes for Linux 3.9 2013-03-26 14:23:45 -07:00
tipc net-next: replace obsolete NLMSG_* with type safe nlmsg_* 2013-03-28 14:25:25 -04:00
unix net: add option to enable error queue packets waking select 2013-03-31 19:44:20 -04:00
vmw_vsock VSOCK: Support VM sockets connected to the hypervisor. 2013-03-15 08:26:26 -04:00
wimax
wireless net: add ETH_P_802_3_MIN 2013-03-28 01:20:42 -04:00
x25 hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
xfrm xfrm: use xfrm direction when lookup policy 2013-03-19 10:35:11 -04:00
compat.c
Kconfig netlink: Diag core and basic socket info dumping (v2) 2013-03-21 12:38:03 -04:00
Makefile VSOCK: Introduce VM Sockets 2013-02-10 19:41:08 -05:00
nonet.c
socket.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
sysctl_net.c