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 <guoweichao@xxxxxxxxxx> :::::: CC: Jaegeuk Kim <jaegeuk@xxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>