F2FS_BLK_ALIGN
last_lblk = F2FS_BLK_ALIGN(pos + len);
end = F2FS_BLK_ALIGN(i_size_read(inode));
(F2FS_BYTES_TO_BLK(pos) < F2FS_BLK_ALIGN(i_size_read(inode))))
map.m_lblk = F2FS_BLK_ALIGN(pos);
free_from = (pgoff_t)F2FS_BLK_ALIGN(from);
nm_i->nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8);
nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8);