[Patch v3 3/3] ipv4: Namespaceify tcp_fastopen_blackhole_timeout knob

Different namespace application might require different time period in second to disable Fastopen on active TCP sockets. Tested: Simulate following similar situation that the server's data gets dropped after 3WHS. C syn-data ---> S C <--- syn/ack - S C ack > S S (accept &

[Patch v3 3/3] ipv4: Namespaceify tcp_fastopen_blackhole_timeout knob

Different namespace application might require different time period in second to disable Fastopen on active TCP sockets. Tested: Simulate following similar situation that the server's data gets dropped after 3WHS. C syn-data ---> S C <--- syn/ack - S C ack > S S (accept &