On Mon, 20 Aug 2012, Mel Gorman wrote:

> @@ -2318,9 +2323,7 @@ void mpol_free_shared_policy(struct shared_policy *p)
>  	while (next) {
>  		n = rb_entry(next, struct sp_node, nd);
>  		next = rb_next(&n->nd);
> -		rb_erase(&n->nd, &p->root);

Looks like we need to keep the above line? sp_delete does not remove the
tree entry.

> -		mpol_put(n->policy);
> -		kmem_cache_free(sn_cache, n);
> +		sp_delete(p, n);
>  	}
>  	mutex_unlock(&p->mutex);
>  }
>