410 	iod->nents = 0;  in iod_init()
619 	if (iod->nents) {  in req_completion()
620 		dma_unmap_sg(&nvmeq->dev->pci_dev->dev, iod->sg, iod->nents,  in req_completion()
858 		iod->nents = blk_rq_map_sg(req->q, req, iod->sg);  in nvme_queue_rq()
859 		if (!iod->nents)  in nvme_queue_rq()
862 		if (!dma_map_sg(nvmeq->q_dmadev, iod->sg, iod->nents, dma_dir))  in nvme_queue_rq()
868 					iod->nents, dma_dir);  in nvme_queue_rq()
1677 	int i, err, count, nents, offset;  in nvme_map_user_pages()  local
1715 	iod->nents = count;  in nvme_map_user_pages()
1717 	nents = dma_map_sg(&dev->pci_dev->dev, sg, count,  in nvme_map_user_pages()
1719 	if (!nents)  in nvme_map_user_pages()
1739 	dma_unmap_sg(&dev->pci_dev->dev, iod->sg, iod->nents,  in nvme_unmap_user_pages()
1742 	for (i = 0; i < iod->nents; i++)  in nvme_unmap_user_pages()