Re: [PATCH] IB/iser: skip an unregistered direction on remote invalidation

A note on why this skips an unregistered direction rather than failing
the connection.

I tried returning an error for that case.  It removes the fault as well,
but iser_task_rsp() then drops the response and the same invalidation
keeps arriving.  Under the same workload the target sent eight and the
unregistered-direction path ran 132 times; with this patch the target
sent ten and that path ran three times.

Skipping also keeps a bidirectional command working when its read half
was registered, its write half was immediate, and the target invalidates
the read half.

Best regards,
Yehyeong Lee