1751 	unsigned length, meta_len, prp_len;  in nvme_submit_io()  local
1761 	meta_len = (io.nblocks + 1) * ns->ms;  in nvme_submit_io()
1763 	if (meta_len && ((io.metadata & 3) || !io.metadata) && !ns->ext)  in nvme_submit_io()
1765 	else if (meta_len && ns->ext) {  in nvme_submit_io()
1766 		length += meta_len;  in nvme_submit_io()
1767 		meta_len = 0;  in nvme_submit_io()
1792 	if (meta_len) {  in nvme_submit_io()
1793 		meta = dma_alloc_coherent(&dev->pci_dev->dev, meta_len,  in nvme_submit_io()
1801 			if (copy_from_user(meta, metadata, meta_len)) {  in nvme_submit_io()
1828 			if (copy_to_user(metadata, meta, meta_len))  in nvme_submit_io()
1831 		dma_free_coherent(&dev->pci_dev->dev, meta_len, meta, meta_dma);  in nvme_submit_io()