Re: [Xen-devel] [PATCH] x86/PoD: use clear_domain_page()

[George Dunlap <George.Dunlap@xxxxxxxxxxxxx>]

On Mon, Sep 14, 2015 at 11:26 AM, Jan Beulich <JBeulich@xxxxxxxx> wrote:
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Acked-by: George Dunlap <george.dunlap@xxxxxxxxxx>

>
> --- a/xen/arch/x86/mm/p2m-pod.c
> +++ b/xen/arch/x86/mm/p2m-pod.c
> @@ -107,11 +107,7 @@ p2m_pod_cache_add(struct p2m_domain *p2m
>       * promise to provide zero pages. So we scrub pages before using.
>       */
>      for ( i = 0; i < (1 << order); i++ )
> -    {
> -        char *b = map_domain_page(_mfn(mfn_x(page_to_mfn(page)) + i));
> -        clear_page(b);
> -        unmap_domain_page(b);
> -    }
> +        clear_domain_page(_mfn(mfn_x(page_to_mfn(page)) + i));
>
>      /* First, take all pages off the domain list */
>      lock_page_alloc(p2m);
>
>
>
>
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