Re: [Xen-devel] [PATCH 07/14] xen: mark grant mapped pages as foreign

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

On 01/12/2015 10:43 AM, David Vrabel wrote:
> diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
> index 8d6e97c..9c7dc75 100644
> --- a/drivers/xen/grant-table.c
> +++ b/drivers/xen/grant-table.c
> @@ -679,12 +679,27 @@ EXPORT_SYMBOL_GPL(gnttab_free_auto_xlat_frames);
>    */
>   int gnttab_alloc_pages(int nr_pages, struct page **pages)
>   {
> +       int i;
>         int ret;
>   
>   	ret = alloc_xenballooned_pages(nr_pages, pages, false);
>         if (ret < 0)
>                 return ret;
>   
> +	for (i = 0; i < nr_pages; i++) {
> +#if BITS_PER_LONG < 64
> +               struct xen_page_foreign *foreign;
> +
> +               foreign = kzalloc(sizeof(*foreign), GFP_KERNEL);
> +               if (!foreign) {
> +                       gnttab_free_pages(nr_pages, pages);
> +                       return -ENOMEM;
> +               }
> +               set_page_set_private(pages[i], (unsigned long)foreign);
set_page_private() ?

-boris


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel