> + int rc; > + struct pmem_device *pmem = dax_get_private(dax_dev); > + struct page *page = ZERO_PAGE(0); Nit: I tend to find code easier to read if variable declarations with assignments are above those without. Also I don't think we need the page variable here. > + rc = pmem_do_write(pmem, page, 0, offset, len); > + if (rc > 0) > + return -EIO; pmem_do_write returns a blk_status_t, so the type of rc and the > check seem odd. But I think pmem_do_write (and pmem_do_read) might be better off returning a normal errno anyway.
