static void multipath_postsuspend(struct dm_target *ti)
{
	struct multipath *m = ti->private;

	mutex_lock(&m->work_mutex);
	flush_multipath_work(m);
	mutex_unlock(&m->work_mutex);
}
static void multipath_postsuspend(struct dm_target *ti)
{
	struct multipath *m = ti->private;

	mutex_lock(&m->work_mutex);
	flush_multipath_work(m);
	mutex_unlock(&m->work_mutex);
}