Hi Zi,

[auto build test WARNING on linus/master]
[also build test WARNING on v4.9-rc6 next-20161122]
[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/Zi-Yan/Parallel-hugepage-migration-optimization/20161123-022913
reproduce:
        # apt-get install sparse
        make ARCH=x86_64 allmodconfig
        make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

   include/linux/compiler.h:253:8: sparse: attribute 'no_sanitize_address': 
unknown attribute
>> fs/f2fs/data.c:1938:26: sparse: not enough arguments for function 
>> migrate_page_copy
   fs/f2fs/data.c: In function 'f2fs_migrate_page':
   fs/f2fs/data.c:1938:2: error: too few arguments to function 
'migrate_page_copy'
     migrate_page_copy(newpage, page);
     ^~~~~~~~~~~~~~~~~
   In file included from fs/f2fs/data.c:1893:0:
   include/linux/migrate.h:45:13: note: declared here
    extern void migrate_page_copy(struct page *newpage, struct page *page,
                ^~~~~~~~~~~~~~~~~

vim +1938 fs/f2fs/data.c

5b7a487c Weichao Guo 2016-09-20  1922   if (atomic_written) {
5b7a487c Weichao Guo 2016-09-20  1923           struct inmem_pages *cur;
5b7a487c Weichao Guo 2016-09-20  1924           list_for_each_entry(cur, 
&fi->inmem_pages, list)
5b7a487c Weichao Guo 2016-09-20  1925                   if (cur->page == page) {
5b7a487c Weichao Guo 2016-09-20  1926                           cur->page = 
newpage;
5b7a487c Weichao Guo 2016-09-20  1927                           break;
5b7a487c Weichao Guo 2016-09-20  1928                   }
5b7a487c Weichao Guo 2016-09-20  1929           mutex_unlock(&fi->inmem_lock);
5b7a487c Weichao Guo 2016-09-20  1930           put_page(page);
5b7a487c Weichao Guo 2016-09-20  1931           get_page(newpage);
5b7a487c Weichao Guo 2016-09-20  1932   }
5b7a487c Weichao Guo 2016-09-20  1933  
5b7a487c Weichao Guo 2016-09-20  1934   if (PagePrivate(page))
5b7a487c Weichao Guo 2016-09-20  1935           SetPagePrivate(newpage);
5b7a487c Weichao Guo 2016-09-20  1936   set_page_private(newpage, 
page_private(page));
5b7a487c Weichao Guo 2016-09-20  1937  
5b7a487c Weichao Guo 2016-09-20 @1938   migrate_page_copy(newpage, page);
5b7a487c Weichao Guo 2016-09-20  1939  
5b7a487c Weichao Guo 2016-09-20  1940   return MIGRATEPAGE_SUCCESS;
5b7a487c Weichao Guo 2016-09-20  1941  }
5b7a487c Weichao Guo 2016-09-20  1942  #endif
5b7a487c Weichao Guo 2016-09-20  1943  
eb47b800 Jaegeuk Kim 2012-11-02  1944  const struct address_space_operations 
f2fs_dblock_aops = {
eb47b800 Jaegeuk Kim 2012-11-02  1945   .readpage       = f2fs_read_data_page,
eb47b800 Jaegeuk Kim 2012-11-02  1946   .readpages      = f2fs_read_data_pages,

:::::: The code at line 1938 was first introduced by commit
:::::: 5b7a487cf32d3a266fea83d590d3226b5ad817a7 f2fs: add customized 
migrate_page callback

:::::: TO: Weichao Guo <guoweic...@huawei.com>
:::::: CC: Jaegeuk Kim <jaeg...@kernel.org>

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

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