int main(int argc, char *argv[]) {
bool need_umount = true, need_swapoff = true, need_loop_detach = true, need_dm_detach = true;
bool in_container, use_watchdog = false;
int main(int argc, char *argv[]) {
bool need_umount = true, need_swapoff = true, need_loop_detach = true, need_dm_detach = true;
bool in_container, use_watchdog = false;