[dm-devel] [PATCH v4 3/7] dax, pmem: Add a dax operation zero_page_range

[Christoph Hellwig]

> +static int pmem_dax_zero_page_range(struct dax_device *dax_dev, u64 offset,
> +				    size_t len)
> +{
> +	struct pmem_device *pmem = dax_get_private(dax_dev);
> +	blk_status_t rc;
> +
> +	rc = pmem_do_write(pmem, ZERO_PAGE(0), 0, offset, len);
> +	return blk_status_to_errno(rc);

No real need for the rc variable here.

Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch at lst.de>