Hi Shiyang, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.13] [cannot apply to hnaz-linux-mm/master xfs-linux/for-next dm/for-next next-20210625] [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] url: https://github.com/0day-ci/linux/commits/Shiyang-Ruan/fsdax-introduce-fs-query-to-support-reflink/20210628-080346 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 62fb9874f5da54fdb243003b386128037319b219 config: i386-randconfig-a012-20210628 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/6833b9441ae13413e20968838cd8de34b8c69ed4 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Shiyang-Ruan/fsdax-introduce-fs-query-to-support-reflink/20210628-080346 git checkout 6833b9441ae13413e20968838cd8de34b8c69ed4 # save the attached .config to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): ld: fs/xfs/xfs_super.o: in function `xfs_dax_notify_failure': >> xfs_super.c:(.text+0xc35): undefined reference to `dax_get_holder' ld: fs/xfs/xfs_super.o: in function `xfs_open_devices': >> xfs_super.c:(.text+0xd57): undefined reference to `dax_set_holder' >> ld: xfs_super.c:(.text+0xdb8): undefined reference to `dax_set_holder' ld: fs/xfs/xfs_super.o: in function `xfs_close_devices': xfs_super.c:(.text+0xf0a): undefined reference to `dax_set_holder' ld: xfs_super.c:(.text+0xf3d): undefined reference to `dax_set_holder' ld: xfs_super.c:(.text+0xf59): undefined reference to `dax_set_holder' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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