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Re: [Xen-devel] [PATCH v2] add page_get_owner_and_reference() related ASSERT()s

On Thu, 2015-08-13 at 04:49 -0600, Jan Beulich wrote:
> The function shouldn't return NULL after having obtained a reference,
> or else the caller won't know to drop it.
> Also its result shouldn't be ignored - if calling code is certain that
> a page already has a non-zero refcount, it better ASSERT()s so.
> Finally this as well as get_page() and put_page() are required to be
> available on all architectures - move the declarations to xen/mm.h.
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> Reviewed-by: Tim Deegan <tim@xxxxxxx>

Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>


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