linux-toradex.git/include/net/inet_common.h, branch v3.14.3

inet*.h: Remove extern from function prototypes

2013-09-21T18:01:38+00:00

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches 
Signed-off-by: David S. Miller

net-tcp: Fast Open client - sendmsg(MSG_FASTOPEN)

2012-07-19T18:02:03+00:00

sendmsg() (or sendto()) with MSG_FASTOPEN is a combo of connect(2)
and write(2). The application should replace connect() with it to
send data in the opening SYN packet.

For blocking socket, sendmsg() blocks until all the data are buffered
locally and the handshake is completed like connect() call. It
returns similar errno like connect() if the TCP handshake fails.

For non-blocking socket, it returns the number of bytes queued (and
transmitted in the SYN-data packet) if cookie is available. If cookie
is not available, it transmits a data-less SYN packet with Fast Open
cookie request option and returns -EINPROGRESS like connect().

Using MSG_FASTOPEN on connecting or connected socket will result in
simlar errno like repeating connect() calls. Therefore the application
should only use this flag on new sockets.

The buffer size of sendmsg() is independent of the MSS of the connection.

Signed-off-by: Yuchung Cheng 
Acked-by: Eric Dumazet 
Signed-off-by: David S. Miller

inet, inet6: make tcp_sendmsg() and tcp_sendpage() through inet_sendmsg() and inet_sendpage()

2010-07-13T03:21:46+00:00

a new boolean flag no_autobind is added to structure proto to avoid the autobind
calls when the protocol is TCP. Then sock_rps_record_flow() is called int the
TCP's sendmsg() and sendpage() pathes.

Signed-off-by: Changli Gao 
----
 include/net/inet_common.h |    4 ++++
 include/net/sock.h        |    1 +
 include/net/tcp.h         |    8 ++++----
 net/ipv4/af_inet.c        |   15 +++++++++------
 net/ipv4/tcp.c            |   11 +++++------
 net/ipv4/tcp_ipv4.c       |    3 +++
 net/ipv6/af_inet6.c       |    8 ++++----
 net/ipv6/tcp_ipv6.c       |    3 +++
 8 files changed, 33 insertions(+), 20 deletions(-)
Signed-off-by: David S. Miller

net: cleanups

2010-07-13T03:21:45+00:00

remove useless blanks.

Signed-off-by: Changli Gao 
----
 include/net/inet_common.h |   55 ++++-------
 include/net/tcp.h         |  222 +++++++++++++++++-----------------------------
 include/net/udp.h         |   38 +++----
 3 files changed, 123 insertions(+), 192 deletions(-)
Signed-off-by: David S. Miller

[NETNS]: Inet control socket should not hold a namespace.

2008-04-03T21:28:30+00:00

This is a generic requirement, so make inet_ctl_sock_create namespace
aware and create a inet_ctl_sock_destroy wrapper around
sk_release_kernel.

Signed-off-by: Denis V. Lunev 
Acked-by: Arnaldo Carvalho de Melo 
Signed-off-by: David S. Miller

[INET]: Let inet_ctl_sock_create return sock rather than socket.

2008-04-03T21:27:58+00:00

All upper protocol layers are already use sock internally.

Signed-off-by: Denis V. Lunev 
Acked-by: Arnaldo Carvalho de Melo 
Signed-off-by: David S. Miller

[INET]: Rename inet_csk_ctl_sock_create to inet_ctl_sock_create.

2008-04-03T21:22:32+00:00

This call is nothing common with INET connection sockets code. It
simply creates an unhashes kernel sockets for protocol messages.

Move the new call into af_inet.c after the rename.

Signed-off-by: Denis V. Lunev 
Acked-by: Arnaldo Carvalho de Melo 
Signed-off-by: David S. Miller

[INET]: Remove leftover prototypes from include/net/inet_common.h

2007-11-13T05:02:51+00:00

Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: David S. Miller

[NET]: move struct proto_ops to const

2006-01-03T21:11:15+00:00

I noticed that some of 'struct proto_ops' used in the kernel may share
a cache line used by locks or other heavily modified data. (default
linker alignement is 32 bytes, and L1_CACHE_LINE is 64 or 128 at
least)

This patch makes sure a 'struct proto_ops' can be declared as const,
so that all cpus can share all parts of it without false sharing.

This is not mandatory : a driver can still use a read/write structure
if it needs to (and eventually a __read_mostly)

I made a global stubstitute to change all existing occurences to make
them const.

This should reduce the possibility of false sharing on SMP, and
speedup some socket system calls.

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

[INET]: Move the TCP hashtable functions/structs to inet_hashtables.[ch]

2005-08-29T22:38:39+00:00

Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: David S. Miller