Re: [PATCH] net-tcp: fix cwnd reduction for non-sack recovery

From: Neal Cardwell <ncardwell@google.com>
Date: Thu, 23 Aug 2012 13:25:50 -0400

On Thu, Aug 23, 2012 at 1:21 PM, Nandita Dukkipati [off-list ref] wrote:

quoted

On Thu, Aug 23, 2012 at 10:05 AM, Yuchung Cheng [off-list ref] wrote:

quoted

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 <redacted>

 ...

quoted

Acked-by: Nandita Dukkipati <redacted>

Acked-by: Neal Cardwell <ncardwell@google.com>

Applied, and queued up for -stable, thanks.

Please use plain "tcp: " as the prefix for pure tcp changes.  Thanks.