hammer_rel_volume
void hammer_rel_volume(hammer_volume_t volume, int locked);
hammer_rel_volume(root_volume, 0);
hammer_rel_volume(root_volume, 0);
hammer_rel_volume(root_volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 1);
hammer_rel_volume(volume, 1);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(root_volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(trans->rootvol, 0);
hammer_rel_volume(root_volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(rootvol, 0);
hammer_rel_volume(rootvol, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);
hammer_rel_volume(volume, 0);