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 next-20210625] [cannot apply to hnaz-linux-mm/master xfs-linux/for-next dm/for-next] [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: x86_64-randconfig-a006-20210628 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 4c92e31dd0f1bd152eda883af20ff7fbcaa14945) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/0day-ci/linux/commit/dc92f6aa75da7bf5c6f974645a157759691ca36a 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 dc92f6aa75da7bf5c6f974645a157759691ca36a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> mm/memory-failure.c:1325:22: error: implicit declaration of function 'dax_load_pfn' [-Werror,-Wimplicit-function-declaration] unsigned long pfn = dax_load_pfn(mapping, index); ^ 1 error generated. vim +/dax_load_pfn +1325 mm/memory-failure.c 1320 1321 int mf_dax_kill_procs(struct address_space *mapping, pgoff_t index, int flags) 1322 { 1323 LIST_HEAD(to_kill); 1324 /* load the pfn of the dax mapping file */ > 1325 unsigned long pfn = dax_load_pfn(mapping, index); 1326 1327 /* 1328 * Unlike System-RAM there is no possibility to swap in a 1329 * different physical page at a given virtual address, so all 1330 * userspace consumption of ZONE_DEVICE memory necessitates 1331 * SIGBUS (i.e. MF_MUST_KILL) 1332 */ 1333 flags |= MF_ACTION_REQUIRED | MF_MUST_KILL; 1334 collect_procs_file(pfn_to_page(pfn), mapping, index, &to_kill, 1335 flags & MF_ACTION_REQUIRED); 1336 1337 unmap_and_kill(&to_kill, pfn, mapping, index, flags); 1338 return 0; 1339 } 1340 EXPORT_SYMBOL_GPL(mf_dax_kill_procs); 1341 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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