+static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr,
+ struct bio *bio)
+{
+ int ret = 0;
+
+ dprintk("rq %p bio %p %u\n", rq, bio, rq->errors);
+ /*
+ * fill in all the output members
+ */
+ hdr->device_status = status_byte(rq->errors);
+ hdr->transport_status = host_byte(rq->errors);
+ hdr->driver_status = driver_byte(rq->errors);
+ hdr->info = 0;
+ if (hdr->device_status || hdr->transport_status || hdr->driver_status)
+ hdr->info |= SG_INFO_CHECK;
+ hdr->din_resid = rq->data_len;
+ hdr->response_len = 0;
+
+ if (rq->sense_len && hdr->response) {
+ int len = min((unsigned int) hdr->max_response_len,
+ rq->sense_len);
+
+ ret = copy_to_user((void*)(unsigned long)hdr->response,
+ rq->sense, len);
+ if (!ret)
+ hdr->response_len = len;
+ else
+ ret = -EFAULT;
+ }
+
+ blk_rq_unmap_user(bio);
+ blk_put_request(rq);
+
+ return ret;
+}
+