Soheil Hassas Yeganeh 4396e46187
tcp: remove tcp_tw_recycle ...
The tcp_tw_recycle was already broken for connections
behind NAT, since the per-destination timestamp is not
monotonically increasing for multiple machines behind
a single destination address.
After the randomization of TCP timestamp offsets
in commit 8a5bd45f6616 (tcp: randomize tcp timestamp offsets
for each connection), the tcp_tw_recycle is broken for all
types of connections for the same reason: the timestamps
received from a single machine is not monotonically increasing,
anymore.
Remove tcp_tw_recycle, since it is not functional. Also, remove
the PAWSPassive SNMP counter since it is only used for
tcp_tw_recycle, and simplify tcp_v4_route_req and tcp_v6_route_req
since the strict argument is only set when tcp_tw_recycle is
enabled.
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com >
Signed-off-by: Eric Dumazet <edumazet@google.com >
Signed-off-by: Neal Cardwell <ncardwell@google.com >
Signed-off-by: Yuchung Cheng <ycheng@google.com >
Cc: Lutz Vieweg <lvml@5t9.de >
Cc: Florian Westphal <fw@strlen.de >
Signed-off-by: David S. Miller <davem@davemloft.net >
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4396e46187