tcp: fix RTO calculated from cached RTT
authorNeal Cardwell <ncardwell@google.com>
Tue, 17 Sep 2013 01:44:20 +0000 (21:44 -0400)
committerDavid S. Miller <davem@davemloft.net>
Tue, 17 Sep 2013 23:08:08 +0000 (19:08 -0400)
commit269aa759b474570fa642452742741525cfc226a9
tree00089098af219e1257caaf5c06835d3dbd6d043d
parent4bdf25976333ba435f7879b4487fe8aca799ac41
tcp: fix RTO calculated from cached RTT

Commit 1b7fdd2ab5852 ("tcp: do not use cached RTT for RTT estimation")
did not correctly account for the fact that crtt is the RTT shifted
left 3 bits. Fix the calculation to consistently reflect this fact.

Signed-off-by: Neal Cardwell <ncardwell@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-By: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/tcp_metrics.c