Sent the message by reply instead of reply all so wasn't delivered to the
list sending it again, sorry ^-^
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I managed to get the reading from the server part of nbdcpy working
(queuing new requests after a socket gets free etc.), the writing to
destination part is not being executed due to some sneaky bug I hope to
find it soon.
This zero-copy TCP receive API looks promising should I pursue it further
https://lwn.net/Articles/752188/
Thanks and regards,
Abhay