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| author | Yuchung Cheng <ycheng@google.com> | 2017-12-07 22:33:30 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-08 22:14:11 +0300 |
| commit | 0ce294d88457bccd7f9991f883fec80022a1ddbd (patch) | |
| tree | 9b4bb1c98c751b01b0f06fded0e3db0e403b5cfc /net/x25 | |
| parent | 2edbdb3159d6f6bd3a9b6e7f789f2b879699a519 (diff) | |
| download | linux-0ce294d88457bccd7f9991f883fec80022a1ddbd.tar.xz | |
tcp: correctly test congestion state in RACK
RACK does not test the loss recovery state correctly to compute
the reordering window. It assumes if lost_out is zero then TCP is
not in loss recovery. But it can be zero during recovery before
calling tcp_rack_detect_loss(): when an ACK acknowledges all
packets marked lost before receiving this ACK, but has not yet
to discover new ones by tcp_rack_detect_loss(). The fix is to
simply test the congestion state directly.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Reviewed-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Priyaranjan Jha <priyarjha@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/x25')
0 files changed, 0 insertions, 0 deletions