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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. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>