On Mon, 2012-09-17 at 13:38 -0300, Rafael Aquini wrote:
> +static inline void assign_balloon_mapping(struct page *page,
> + struct address_space
> *mapping)
> +{
> + page->mapping = mapping;
> + smp_wmb();
> +}
> +
> +static inline void clear_balloon_mapping(struct page *page)
> +{
> + page->mapping = NULL;
> + smp_wmb();
> +}
barriers without a comment describing the data race are a mortal sin.
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