Reference.reachabilityFence(first_blocknum_arg);
Reference.reachabilityFence(number_of_blocks_arg);
if (ret >= 0 && ret <= 4096) { return null; }
Reference.reachabilityFence(first_blocknum_arg);
Reference.reachabilityFence(number_of_blocks_arg);
if (ret >= 0 && ret <= 4096) { return null; }