• Eric Dumazet's avatar
    [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support · 92f37fd2
    Eric Dumazet authored
    
    
    Now that network timestamps use ktime_t infrastructure, we can add a new
    SOL_SOCKET sockopt  SO_TIMESTAMPNS.
    
    This command is similar to SO_TIMESTAMP, but permits transmission of
    a 'timespec struct' instead of a 'timeval struct' control message.
    (nanosecond resolution instead of microsecond)
    
    Control message is labelled SCM_TIMESTAMPNS instead of SCM_TIMESTAMP
    
    A socket cannot mix SO_TIMESTAMP and SO_TIMESTAMPNS : the two modes are
    mutually exclusive.
    
    sock_recv_timestamp() became too big to be fully inlined so I added a
    __sock_recv_timestamp() helper function.
    Signed-off-by: default avatarEric Dumazet <dada1@cosmosbay.com>
    CC: linux-arch@vger.kernel.org
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    92f37fd2
sock.h 39.6 KB