Re: [PATCH 14/20] hugetlb: Convert to migrate_folio

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Hi "Matthew,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.19-rc1 next-20220607]
[cannot apply to jaegeuk-f2fs/dev-test trondmy-nfs/linux-next kdave/for-next xfs-linux/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/intel-lab-lkp/linux/commits/Matthew-Wilcox-Oracle/Convert-aops-migratepage-to-aops-migrate_folio/20220607-044509
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git f2906aa863381afb0015a9eb7fefad885d4e5a56
config: ia64-randconfig-r015-20220605 (https://download.01.org/0day-ci/archive/20220607/202206071414.41wGG8fp-lkp@xxxxxxxxx/config)
compiler: ia64-linux-gcc (GCC) 11.3.0
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/b038962c9c8c2ab77c71dfba24356ce24bd7a242
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Matthew-Wilcox-Oracle/Convert-aops-migratepage-to-aops-migrate_folio/20220607-044509
        git checkout b038962c9c8c2ab77c71dfba24356ce24bd7a242
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=ia64 SHELL=/bin/bash fs/hugetlbfs/

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

All errors (new ones prefixed by >>):

   fs/hugetlbfs/inode.c: In function 'hugetlbfs_migrate_folio':
>> fs/hugetlbfs/inode.c:990:17: error: implicit declaration of function 'folio_migrate_copy' [-Werror=implicit-function-declaration]
     990 |                 folio_migrate_copy(dst, src);
         |                 ^~~~~~~~~~~~~~~~~~
>> fs/hugetlbfs/inode.c:992:17: error: implicit declaration of function 'folio_migrate_flags'; did you mean 'folio_mapping_flags'? [-Werror=implicit-function-declaration]
     992 |                 folio_migrate_flags(dst, src);
         |                 ^~~~~~~~~~~~~~~~~~~
         |                 folio_mapping_flags
   cc1: some warnings being treated as errors


vim +/folio_migrate_copy +990 fs/hugetlbfs/inode.c

   972	
   973	static int hugetlbfs_migrate_folio(struct address_space *mapping,
   974					struct folio *dst, struct folio *src,
   975					enum migrate_mode mode)
   976	{
   977		int rc;
   978	
   979		rc = migrate_huge_page_move_mapping(mapping, dst, src);
   980		if (rc != MIGRATEPAGE_SUCCESS)
   981			return rc;
   982	
   983		if (hugetlb_page_subpool(&src->page)) {
   984			hugetlb_set_page_subpool(&dst->page,
   985						hugetlb_page_subpool(&src->page));
   986			hugetlb_set_page_subpool(&src->page, NULL);
   987		}
   988	
   989		if (mode != MIGRATE_SYNC_NO_COPY)
 > 990			folio_migrate_copy(dst, src);
   991		else
 > 992			folio_migrate_flags(dst, src);
   993	
   994		return MIGRATEPAGE_SUCCESS;
   995	}
   996	

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



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