tree:   git://git.cmpxchg.org/linux-mmotm.git master
head:   e077e8e0158533bb824f3e2d9c0eaaaf4679b0ca
commit: 2f7e175e0801020803aeba52576d53c0fe69805b [219/458] mm: don't split THP page when syscall is called
config: i386-randconfig-nexr0-0322 (attached as .config)
reproduce:
  git checkout 2f7e175e0801020803aeba52576d53c0fe69805b
  # save the attached .config to linux build tree
  make ARCH=i386 

Note: the mmotm/master HEAD e077e8e0158533bb824f3e2d9c0eaaaf4679b0ca builds fine.
      It only hurts bisectibility.

All error/warnings:

   mm/huge_memory.c: In function 'madvise_free_huge_pmd':
>> mm/huge_memory.c:1397:3: error: implicit declaration of function 'pmd_mkclean' [-Werror=implicit-function-declaration]
      orig_pmd = pmd_mkclean(orig_pmd);
      ^
>> mm/huge_memory.c:1397:12: error: incompatible types when assigning to type 'pmd_t' from type 'int'
      orig_pmd = pmd_mkclean(orig_pmd);
               ^
   cc1: some warnings being treated as errors

vim +/pmd_mkclean +1397 mm/huge_memory.c

  1391	
  1392			/* No hugepage in swapcache */
  1393			page = pmd_page(orig_pmd);
  1394			VM_BUG_ON_PAGE(PageSwapCache(page), page);
  1395	
  1396			orig_pmd = pmd_mkold(orig_pmd);
> 1397			orig_pmd = pmd_mkclean(orig_pmd);
  1398	
  1399			set_pmd_at(mm, addr, pmd, orig_pmd);
  1400			tlb_remove_pmd_tlb_entry(tlb, pmd, addr);

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