Merge branch 'tcp_bbr-PROBE_RTT-minor-bug-fixes'
Kevin Yang says:
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tcp_bbr: PROBE_RTT minor bug fixes
This series includes two minor bug fixes for the TCP BBR PROBE_RTT
mechanism, and one preparatory patch:
(1) A preparatory patch to reorganize the PROBE_RTT logic by refactoring
(into its own function) the code to exit PROBE_RTT, since the next
patch will be using that code in a new context.
(2) Fix: When BBR restarts from idle and if BBR is in PROBE_RTT mode,
BBR should check if it's time to exit PROBE_RTT. If yes, then BBR
should exit PROBE_RTT mode and restore the cwnd to its full value.
(3) Fix: Apply the PROBE_RTT cwnd cap even if the count of fully-ACKed
packets is 0.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>