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    [TCP]: TCP_DEFER_ACCEPT updates - process as established · ec3c0982
    Patrick McManus 提交于
    Change TCP_DEFER_ACCEPT implementation so that it transitions a
    connection to ESTABLISHED after handshake is complete instead of
    leaving it in SYN-RECV until some data arrvies. Place connection in
    accept queue when first data packet arrives from slow path.
    
    Benefits:
      - established connection is now reset if it never makes it
       to the accept queue
    
     - diagnostic state of established matches with the packet traces
       showing completed handshake
    
     - TCP_DEFER_ACCEPT timeouts are expressed in seconds and can now be
       enforced with reasonable accuracy instead of rounding up to next
       exponential back-off of syn-ack retry.
    Signed-off-by: NPatrick McManus <mcmanus@ducksong.com>
    Signed-off-by: NDavid S. Miller <davem@davemloft.net>
    ec3c0982
tcp_ipv4.c 61.8 KB