tree 9d60ba52c78f83a2fe6d22950e2217e3a898755f
parent 20e1db19db5d6b9e4e83021595eab0dc8f107bef
author Yuchung Cheng <ycheng@google.com> 1345705517 +0000
committer David S. Miller <davem@davemloft.net> 1345830538 -0400

tcp: fix cwnd reduction for non-sack recovery

The cwnd reduction in fast recovery is based on the number of packets
newly delivered per ACK. For non-sack connections every DUPACK
signifies a packet has been delivered, but the sender mistakenly
skips counting them for cwnd reduction.

The fix is to compute newly_acked_sacked after DUPACKs are accounted
in sacked_out for non-sack connections.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Nandita Dukkipati <nanditad@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>