Merge "Reserve space on disk using fallocate"

    return kIoError;

  }

  int result = TEMP_FAILURE_RETRY(ftruncate(fd, declared_length + current_offset));

  int result = 0;

#if defined(__linux__)

  // Make sure we have enough space on the volume to extract the compressed

  // entry. Note that the call to ftruncate below will change the file size but

  // will not allocate space on disk.

  if (declared_length > 0) {

    result = TEMP_FAILURE_RETRY(fallocate(fd, 0, current_offset, declared_length));

    if (result == -1) {

      ALOGW("Zip: unable to allocate space for file to %" PRId64 ": %s",

            static_cast<int64_t>(declared_length + current_offset), strerror(errno));

      return kIoError;

    }

  }

#endif  // defined(__linux__)

  result = TEMP_FAILURE_RETRY(ftruncate(fd, declared_length + current_offset));

  if (result == -1) {

    ALOGW("Zip: unable to truncate file to %" PRId64 ": %s",

          static_cast<int64_t>(declared_length + current_offset), strerror(errno));