Regression: Connect-X5 doesn't connect with NVME-of

[Sagi Grimberg]

> Hi Sagi/Logan,
> 
> I've repro it with v4.14.1 (not happens on each connect).
> Sagi's proposal below fix the issue of the "Failed to write to 
> /dev/nvme-fabrics: Invalid cross-device link".
> 
> Sagi can you push (with my Tested-by: Max Gurtovoy <maxg at mellanox.com> 
> and Reviewed-by: Max Gurtovoy <maxg at mellanox.com>) it or I will ?

Thanks, I'll send it.