[PATCH] nvme: lightnvm: return ppa completion status

[Christoph Hellwig]

On Thu, Feb 11, 2016 at 12:36:29PM +0100, Matias Bj??rling wrote:
> PPAs sent to device is separately acknowledge in a 64bit status
> variable. The status is stored in DW0 and DW1 of the completion queue
> entry. Store this status inside the nvm_rq for further processing.
> 
> This can later be used to implement retry techniques for failed writes
> and reads.
> 
> Signed-off-by: Matias Bj??rling <m at bjorling.me>

Looks reasonable:

Reviewed-by: Christoph Hellwig <hch at lst.de>