On Sun, Aug 23, 2015 at 10:17:51AM +0200, Ingo Molnar wrote:
> +static u64 vmap_info_gen;
> +static u64 vmap_info_cache_gen;
> +void get_vmalloc_info(struct vmalloc_info *vmi)
> +{
> + u64 gen = READ_ONCE(vmap_info_gen);
> +
> + /*
> + * If the generation counter of the cache matches that of
> + * the vmalloc generation counter then return the cache:
> + */
> + if (READ_ONCE(vmap_info_cache_gen) == gen) {
Why are those things u64? It has the obvious down-side that you still
get split loads on 32bit machines.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
