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    tcp: Revert per-route SACK/DSACK/TIMESTAMP changes. · bb5b7c11
    David S. Miller 提交于
    It creates a regression, triggering badness for SYN_RECV
    sockets, for example:
    
    [19148.022102] Badness at net/ipv4/inet_connection_sock.c:293
    [19148.022570] NIP: c02a0914 LR: c02a0904 CTR: 00000000
    [19148.023035] REGS: eeecbd30 TRAP: 0700   Not tainted  (2.6.32)
    [19148.023496] MSR: 00029032 <EE,ME,CE,IR,DR>  CR: 24002442  XER: 00000000
    [19148.024012] TASK = eee9a820[1756] 'privoxy' THREAD: eeeca000
    
    This is likely caused by the change in the 'estab' parameter
    passed to tcp_parse_options() when invoked by the functions
    in net/ipv4/tcp_minisocks.c
    
    But even if that is fixed, the ->conn_request() changes made in
    this patch series is fundamentally wrong.  They try to use the
    listening socket's 'dst' to probe the route settings.  The
    listening socket doesn't even have a route, and you can't
    get the right route (the child request one) until much later
    after we setup all of the state, and it must be done by hand.
    
    This stuff really isn't ready, so the best thing to do is a
    full revert.  This reverts the following commits:
    
    f55017a9
    022c3f7d
    1aba721e
    cda42ebd
    345cda2f
    dc343475
    05eaade2
    6a2a2d6bSigned-off-by: NDavid S. Miller <davem@davemloft.net>
    bb5b7c11
tcp_ipv6.c 55.5 KB