Re: [PATCH 3/4] mm: migrate: add isolate_folio_to_list()

[kernel test robot <lkp@intel.com>]

Hi Kefeng,

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/Kefeng-Wang/mm-memory-failure-add-unmap_posioned_folio/20240725-091923
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20240725011647.1306045-4-wangkefeng.wang%40huawei.com
patch subject: [PATCH 3/4] mm: migrate: add isolate_folio_to_list()
config: x86_64-randconfig-004-20240726 (https://download.01.org/0day-ci/archive/20240726/202407262129.FJbkroy1-lkp@intel.com/config)
compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240726/202407262129.FJbkroy1-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202407262129.FJbkroy1-lkp@intel.com/

All errors (new ones prefixed by >>):

   ld: mm/memory-failure.o: in function `mf_isolate_folio':
>> mm/memory-failure.c:2662:(.text+0x2e8a): undefined reference to `isolate_folio_to_list'


vim +2662 mm/memory-failure.c

  2659	
  2660	static bool mf_isolate_folio(struct folio *folio, struct list_head *pagelist)
  2661	{
> 2662		bool isolated = isolate_folio_to_list(folio, pagelist);
  2663	
  2664		/*
  2665		 * If we succeed to isolate the folio, we grabbed another refcount on
  2666		 * the folio, so we can safely drop the one we got from get_any_page().
  2667		 * If we failed to isolate the folio, it means that we cannot go further
  2668		 * and we will return an error, so drop the reference we got from
  2669		 * get_any_page() as well.
  2670		 */
  2671		folio_put(folio);
  2672		return isolated;
  2673	}
  2674	

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