BTRFS_MAX_UNCOMPRESSED
if (end - start > BTRFS_MAX_UNCOMPRESSED)
end = start + BTRFS_MAX_UNCOMPRESSED;
#define MAX_SAMPLE_SIZE (BTRFS_MAX_UNCOMPRESSED * \
lockend = start + BTRFS_MAX_UNCOMPRESSED - 1;
cur_len = min(end + 1 - start, BTRFS_MAX_UNCOMPRESSED);
if (encoded->unencoded_len > BTRFS_MAX_UNCOMPRESSED ||
lockend = start + BTRFS_MAX_UNCOMPRESSED - 1;
lockend = start + BTRFS_MAX_UNCOMPRESSED - 1;