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

	queue_if_no_path(m, 0, 1);
}
static void multipath_presuspend(struct dm_target *ti)
{
	struct multipath *m = (struct multipath *) ti->private;

	queue_if_no_path(m, 0, 1);
}