Re: [PATCH v2 1/3] mm/gup: Introduce pin_user_pages_fd() for pinning shmem/hugetlbfs file pages (v2)

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Hi Vivek,

kernel test robot noticed the following build errors:

[auto build test ERROR on akpm-mm/mm-everything]

url:    https://github.com/intel-lab-lkp/linux/commits/Vivek-Kasireddy/mm-gup-Introduce-pin_user_pages_fd-for-pinning-shmem-hugetlbfs-file-pages-v2/20231106-141954
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20231106061541.507116-2-vivek.kasireddy%40intel.com
patch subject: [PATCH v2 1/3] mm/gup: Introduce pin_user_pages_fd() for pinning shmem/hugetlbfs file pages (v2)
config: mips-maltaup_defconfig (https://download.01.org/0day-ci/archive/20231107/202311071223.ZeoRZg33-lkp@xxxxxxxxx/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231107/202311071223.ZeoRZg33-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311071223.ZeoRZg33-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

>> mm/gup.c:3419:9: error: call to undeclared function 'hugetlb_add_to_page_cache'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    3419 |                 err = hugetlb_add_to_page_cache(folio, file->f_mapping, idx);
         |                       ^
   1 error generated.


vim +/hugetlb_add_to_page_cache +3419 mm/gup.c

  3403	
  3404	static struct page *alloc_file_page(struct file *file, pgoff_t idx)
  3405	{
  3406		struct page *page = ERR_PTR(-ENOMEM);
  3407		struct folio *folio;
  3408		int err;
  3409	
  3410		if (shmem_file(file))
  3411			return shmem_read_mapping_page(file->f_mapping, idx);
  3412	
  3413		folio = alloc_hugetlb_folio_nodemask(hstate_file(file),
  3414						     NUMA_NO_NODE,
  3415						     NULL,
  3416						     GFP_USER);
  3417		if (folio && folio_try_get(folio)) {
  3418			page = &folio->page;
> 3419			err = hugetlb_add_to_page_cache(folio, file->f_mapping, idx);
  3420			if (err) {
  3421				folio_put(folio);
  3422				free_huge_folio(folio);
  3423				page = ERR_PTR(err);
  3424			}
  3425		}
  3426	
  3427		return page;
  3428	}
  3429	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki



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