static void hold_task_mempolicy(struct proc_maps_private *priv)
{
	struct task_struct *task = priv->task;

	task_lock(task);
	priv->task_mempolicy = get_task_policy(task);
	mpol_get(priv->task_mempolicy);
	task_unlock(task);
}
static void hold_task_mempolicy(struct proc_maps_private *priv)
{
	struct task_struct *task = priv->task;

	task_lock(task);
	priv->task_mempolicy = get_task_policy(task);
	mpol_get(priv->task_mempolicy);
	task_unlock(task);
}