has_single_bit_set
if (!has_single_bit_set(mode & S_IFMT)) {
if (unlikely(!has_single_bit_set(flags & (BTRFS_EXTENT_FLAG_DATA |
if (unlikely(!has_single_bit_set(type & BTRFS_BLOCK_GROUP_PROFILE_MASK) &&
return has_single_bit_set(flags);