linux/include
David S. Miller 41063e9dd1 ipv4: Early TCP socket demux.
Input packet processing for local sockets involves two major demuxes.
One for the route and one for the socket.

But we can optimize this down to one demux for certain kinds of local
sockets.

Currently we only do this for established TCP sockets, but it could
at least in theory be expanded to other kinds of connections.

If a TCP socket is established then it's identity is fully specified.

This means that whatever input route was used during the three-way
handshake must work equally well for the rest of the connection since
the keys will not change.

Once we move to established state, we cache the receive packet's input
route to use later.

Like the existing cached route in sk->sk_dst_cache used for output
packets, we have to check for route invalidations using dst->obsolete
and dst->ops->check().

Early demux occurs outside of a socket locked section, so when a route
invalidation occurs we defer the fixup of sk->sk_rx_dst until we are
actually inside of established state packet processing and thus have
the socket locked.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-19 21:22:05 -07:00
..
acpi ACPI: fix acpi_bus.h build warnings when ACPI is not enabled 2012-06-04 00:29:11 -04:00
asm-generic Merge branches 'sh/urgent', 'sh/core', 'sh/clockevents', 'sh/asm-generic' and 'sh/trivial' into sh-fixes-for-linus 2012-06-13 12:01:33 +09:00
crypto
drm drm: increase DRM_OBJECT_MAX_PROPERTY to 24 2012-06-12 15:36:31 +01:00
keys
linux team: add port_[enabled/disabled] mode callbacks 2012-06-19 15:00:24 -07:00
math-emu
media [media] patch for Asus My Cinema PS3-100 (1043:48cd) 2012-05-20 16:05:02 -03:00
memory
misc
mtd UBI: amend commentaries WRT dtype 2012-05-20 20:25:59 +03:00
net ipv4: Early TCP socket demux. 2012-06-19 21:22:05 -07:00
pcmcia
rdma Merge branches 'core', 'cxgb4', 'ipath', 'iser', 'lockdep', 'mlx4', 'nes', 'ocrdma', 'qib' and 'raw-qp' into for-linus 2012-05-21 09:00:47 -07:00
rxrpc
scsi [SCSI] fcoe, bnx2fc, libfcoe: SW FCoE and bnx2fc use FCoE Syfs 2012-05-23 09:43:13 +01:00
sound ASoC: Last minute updates 2012-05-22 02:58:55 +02:00
target target: Add MI_REPORT_TARGET_PGS ext. header + implict_trans_secs attribute 2012-05-17 00:45:58 -07:00
trace mm: vmscan: remove reclaim_mode_t 2012-05-29 16:22:19 -07:00
video fbdev updates for 3.5 2012-06-01 16:57:51 -07:00
xen xen: do not map the same GSI twice in PVHVM guests. 2012-05-21 14:11:36 -04:00
Kbuild