CLUSTER_FLAG_FREE  312 mm/swapfile.c  	return info->flags & CLUSTER_FLAG_FREE;
CLUSTER_FLAG_FREE  461 mm/swapfile.c  	cluster_set_flag(ci + idx, CLUSTER_FLAG_FREE);
CLUSTER_FLAG_FREE 3076 mm/swapfile.c  			cluster_set_flag(&cluster_info[idx], CLUSTER_FLAG_FREE);