Hi Matthew, I love your patch! Yet something to improve: [auto build test ERROR on next-20230127] [cannot apply to tytso-ext4/dev xfs-linux/for-next linus/master v6.2-rc5 v6.2-rc4 v6.2-rc3 v6.2-rc5] [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/Matthew-Wilcox-Oracle/fs-Add-FGP_WRITEBEGIN/20230128-150212 patch link: https://lore.kernel.org/r/20230126202415.1682629-4-willy%40infradead.org patch subject: [PATCH 03/31] ext4: Convert ext4_bio_write_page() to use a folio config: x86_64-randconfig-a013-20230123 (https://download.01.org/0day-ci/archive/20230129/202301290216.BcfP0oGK-lkp@xxxxxxxxx/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) 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/f6e4c5cfaf2ef7b8ee6c5354bbbd5f1ee758746f git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Matthew-Wilcox-Oracle/fs-Add-FGP_WRITEBEGIN/20230128-150212 git checkout f6e4c5cfaf2ef7b8ee6c5354bbbd5f1ee758746f # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: "bio_add_folio" [fs/ext4/ext4.ko] undefined! -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
