Hi Boris,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on kdave/for-next]
[also build test ERROR on rostedt-trace/for-next linus/master v6.0 next-20221005]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Boris-Burkov/btrfs-data-block-group-size-classes/20221006-035039
base:   https://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-next
config: m68k-randconfig-r006-20221002
compiler: m68k-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/577fe8c0c1935daf387c2b5fcbf9f340e585b5cd
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Boris-Burkov/btrfs-data-block-group-size-classes/20221006-035039
        git checkout 577fe8c0c1935daf387c2b5fcbf9f340e585b5cd
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   m68k-linux-ld: fs/btrfs/block-group.o: in function `load_block_group_size_class.isra.0':
>> block-group.c:(.text+0x1114): undefined reference to `__udivdi3'

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp