FAKE_FILE_OFFSET
node_check.offset = FAKE_FILE_OFFSET;
node_check.offset = FAKE_FILE_OFFSET;
node_check.offset = FAKE_FILE_OFFSET;
node_check.offset = FAKE_FILE_OFFSET;
node_check.offset = FAKE_FILE_OFFSET;
btrfs_init_data_ref(&ref, FAKE_INO, FAKE_FILE_OFFSET,