err = get_nodes(nodes, nmask, maxnode, mode);
err = get_nodes(&nodes, nmask, maxnode, mode);
asmlinkage long sys_set_mempolicy(int mode, unsigned long __user *nmask,				   unsigned long maxnode){	int err;	struct mempolicy *new;	DECLARE_BITMAP(nodes, MAX_NUMNODES);	if (mode < 0 || mode > MPOL_MAX)		return -EINVAL;	err = get_nodes(nodes, nmask, maxnode, mode);	if (err)		return err;	new = mpol_new(mode, nodes);	if (IS_ERR(new))		return PTR_ERR(new);	mpol_free(current->mempolicy);	current->mempolicy = new;	if (new && new->policy == MPOL_INTERLEAVE)		current->il_next = find_first_bit(new->v.nodes, MAX_NUMNODES);	return 0;}