Hi Changbin,

[auto build test ERROR on mmotm/master]
[also build test ERROR on v4.14-rc5 next-20171017]
[if your patch is applied to the wrong git tree, please drop us a note to help 
improve the system]

url:    
https://github.com/0day-ci/linux/commits/changbin-du-intel-com/mm-thp-introduce-dedicated-transparent-huge-page-allocation-interfaces/20171018-230128
base:   git://git.cmpxchg.org/linux-mmotm.git master
config: i386-randconfig-x003-201742 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All error/warnings (new ones prefixed by >>):

   In file included from mm/shmem.c:70:0:
   include/linux/migrate.h: In function 'new_page_nodemask':
   include/linux/migrate.h:49:10: error: implicit declaration of function 
'alloc_transhuge_page_nodemask' [-Werror=implicit-function-declaration]
      return alloc_transhuge_page_nodemask(gfp_mask | GFP_TRANSHUGE,
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/migrate.h:49:10: warning: return makes pointer from integer 
without a cast [-Wint-conversion]
      return alloc_transhuge_page_nodemask(gfp_mask | GFP_TRANSHUGE,
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        preferred_nid, nodemask);
        ~~~~~~~~~~~~~~~~~~~~~~~~
   mm/shmem.c: In function 'shmem_alloc_hugepage':
>> mm/shmem.c:1448:9: error: implicit declaration of function 
>> 'alloc_transhuge_page_vma' [-Werror=implicit-function-declaration]
     page = alloc_transhuge_page_vma(gfp, &pvma, 0);
            ^~~~~~~~~~~~~~~~~~~~~~~~
>> mm/shmem.c:1448:7: warning: assignment makes pointer from integer without a 
>> cast [-Wint-conversion]
     page = alloc_transhuge_page_vma(gfp, &pvma, 0);
          ^
   cc1: some warnings being treated as errors

vim +/alloc_transhuge_page_vma +1448 mm/shmem.c

  1423  
  1424  static struct page *shmem_alloc_hugepage(gfp_t gfp,
  1425                  struct shmem_inode_info *info, pgoff_t index)
  1426  {
  1427          struct vm_area_struct pvma;
  1428          struct inode *inode = &info->vfs_inode;
  1429          struct address_space *mapping = inode->i_mapping;
  1430          pgoff_t idx, hindex;
  1431          void __rcu **results;
  1432          struct page *page;
  1433  
  1434          if (!IS_ENABLED(CONFIG_TRANSPARENT_HUGE_PAGECACHE))
  1435                  return NULL;
  1436  
  1437          hindex = round_down(index, HPAGE_PMD_NR);
  1438          rcu_read_lock();
  1439          if (radix_tree_gang_lookup_slot(&mapping->page_tree, &results, 
&idx,
  1440                                  hindex, 1) && idx < hindex + 
HPAGE_PMD_NR) {
  1441                  rcu_read_unlock();
  1442                  return NULL;
  1443          }
  1444          rcu_read_unlock();
  1445  
  1446          shmem_pseudo_vma_init(&pvma, info, hindex);
  1447          gfp |= __GFP_COMP | __GFP_NORETRY | __GFP_NOWARN;
> 1448          page = alloc_transhuge_page_vma(gfp, &pvma, 0);
  1449          shmem_pseudo_vma_destroy(&pvma);
  1450          return page;
  1451  }
  1452  

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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