# Re: \[PATCH 11/15\] ubd: use bvec\_virt

- From: Anton Ivanov \<anton.ivanov@cambridgegreys.com\>
- Date: 2021-08-04 10:11:08 
- List: virtualization
- Page: https://ratatoskr.run/virtualization/2021/08/6404287
- Thread: https://ratatoskr.run/linux-block/2021/08/6404270/t.md

```text


On 04/08/2021 10:56, Christoph Hellwig wrote:
> Use bvec_virt instead of open coding it.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>   arch/um/drivers/ubd_kern.c | 3 +--
>   1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
> index e497185dd393..cd9dc0556e91 100644
> --- a/arch/um/drivers/ubd_kern.c
> +++ b/arch/um/drivers/ubd_kern.c
> @@ -1268,8 +1268,7 @@ static void ubd_map_req(struct ubd *dev, struct io_thread_req *io_req,
>   		rq_for_each_segment(bvec, req, iter) {
>   			BUG_ON(i >= io_req->desc_cnt);
>   
> -			io_req->io_desc[i].buffer =
> -				page_address(bvec.bv_page) + bvec.bv_offset;
> +			io_req->io_desc[i].buffer = bvec_virt(&bvec);
>   			io_req->io_desc[i].length = bvec.bv_len;
>   			i++;
>   		}
>
Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>

-- 
Anton R. Ivanov
Cambridgegreys Limited. Registered in England. Company Number 10273661
https://www.cambridgegreys.com/
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```