[openib-general] [PATCH/RFC 1/2] IB: Return "maybe_missed_event" hint from ib_req_notify_cq()

[Shirley Ma]

Roland,

I think there is a barrier might be needed in checking LINK SCHED state,
like smp_mb_before_clear_bit() and smp_mb_after_clear_bit(), otherwise the
netif_rx_reschedule() for rotting packet and next interrupt
netif_rx_schedule() could be running in the time. If the interrupt is
round-robin fashion, then packets are going to be out of order in TCP
layer. I will test it out once I have the resouce.

How do you think?

Thanks
Shirley Ma
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