[PATCH 2/4] nvmet-rdma: Use new SGL alloc/free helper for requests

[Logan Gunthorpe]

On 4/4/2018 6:43 AM, Sagi Grimberg wrote:
> IIRC, this might result in nvmet-rdma executing data-transfer even
> for failed requests in some error cases. I'm not sure this is the
> only case, but have you tested what happens in error cases?

That's why I set transfer_len to zero when we exit this function on 
error (see the error_out label):

> +error_out:
> +    rsp->req.transfer_len = 0;
> +    return NVME_SC_INTERNAL; 

I haven't tested the error path, but I can. Is it sufficient to just 
change the code to create an error or do you know of a better way to 
test this?

Thanks,

Logan