Doug / smarc-fsl-linux-kernel

20 Jul, 2012

1 commit

  • cf60af03c   net-tcp: Fast Open client - sendmsg(MSG_FASTOPEN) ... Browse Code »

    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

    Yuchung Cheng
     

13 Jul, 2010

2 commits

  • 7ba429100   inet, inet6: make tcp_sendmsg() and tcp_sendpage() through inet_sendmsg() and inet_sendpage() ... Browse Code »

    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

    Changli Gao
     
  • 53d3176b2   net: cleanups ... Browse Code »

    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

    Changli Gao
     

04 Apr, 2008

3 commits

13 Nov, 2007

1 commit

04 Jan, 2006

1 commit

  • 90ddc4f04   [NET]: move struct proto_ops to const ... Browse Code »

    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

    Eric Dumazet
     

30 Aug, 2005

2 commits

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds