DAX_ACCESS
DAX_ACCESS, NULL, &pfn);
DAX_ACCESS, &vaddr, &pfn);
da = dax_direct_access(wc->ssd_dev->dax_dev, offset, p, DAX_ACCESS,
p - i, DAX_ACCESS, NULL, &pfn);
rc = dax_direct_access(dax_dev, pgoff, nr_pages, DAX_ACCESS,
rc = dax_direct_access(iter->iomap.dax_dev, pgoff, 1, DAX_ACCESS,
DAX_ACCESS, kaddr, pfnp);
ret = dax_direct_access(iomap->dax_dev, pgoff, 1, DAX_ACCESS, &kaddr,
DAX_ACCESS, &kaddr, NULL);
DAX_ACCESS, NULL, NULL);
rc = dax_direct_access(dax_dev, pgoff, nr_pages, DAX_ACCESS, &kaddr,