On Thu, 22 Aug 2013, Joonsoo Kim wrote:

> @@ -1099,8 +1098,7 @@ static void drain_alien_cache(struct kmem_cache *cachep,
>
>  static inline int cache_free_alien(struct kmem_cache *cachep, void *objp)
>  {
> -     struct slab *slabp = virt_to_slab(objp);
> -     int nodeid = slabp->nodeid;
> +     int nodeid = page_to_nid(virt_to_page(objp));
>       struct kmem_cache_node *n;
>       struct array_cache *alien = NULL;
>       int node;

virt_to_page is a relatively expensive operation. How does this affect
performance?
--
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/

Reply via email to