tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 21ef7b1e17d039053edaeaf41142423810572741 commit: e74cd6ee58375cbdd85c01c93f75e34133ebea4d [4824/8441] btrfs: split page locking out of __process_pages_contig config: powerpc-randconfig-r031-20230811 (https://download.01.org/0day-ci/archive/20230811/202308111822.ITiKYDqp-lkp@xxxxxxxxx/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce: (https://download.01.org/0day-ci/archive/20230811/202308111822.ITiKYDqp-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202308111822.ITiKYDqp-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> fs/btrfs/extent_io.c:230:16: warning: variable 'pages_processed' set but not used [-Wunused-but-set-variable] unsigned long pages_processed = 0; ^ 1 warning generated. vim +/pages_processed +230 fs/btrfs/extent_io.c ed8f13bf4a2ccb Qu Wenruo 2021-05-31 221 e74cd6ee58375c Christoph Hellwig 2023-06-28 222 static void __process_pages_contig(struct address_space *mapping, e74cd6ee58375c Christoph Hellwig 2023-06-28 223 struct page *locked_page, u64 start, u64 end, e74cd6ee58375c Christoph Hellwig 2023-06-28 224 unsigned long page_ops) ed8f13bf4a2ccb Qu Wenruo 2021-05-31 225 { e38992be1f6cf3 Qu Wenruo 2021-05-31 226 struct btrfs_fs_info *fs_info = btrfs_sb(mapping->host->i_sb); ed8f13bf4a2ccb Qu Wenruo 2021-05-31 227 pgoff_t start_index = start >> PAGE_SHIFT; ed8f13bf4a2ccb Qu Wenruo 2021-05-31 228 pgoff_t end_index = end >> PAGE_SHIFT; ed8f13bf4a2ccb Qu Wenruo 2021-05-31 229 pgoff_t index = start_index; ed8f13bf4a2ccb Qu Wenruo 2021-05-31 @230 unsigned long pages_processed = 0; 04c6b79ae4f0bc Vishal Moola (Oracle 2022-08-23 231) struct folio_batch fbatch; ed8f13bf4a2ccb Qu Wenruo 2021-05-31 232 int i; ed8f13bf4a2ccb Qu Wenruo 2021-05-31 233 04c6b79ae4f0bc Vishal Moola (Oracle 2022-08-23 234) folio_batch_init(&fbatch); 04c6b79ae4f0bc Vishal Moola (Oracle 2022-08-23 235) while (index <= end_index) { 04c6b79ae4f0bc Vishal Moola (Oracle 2022-08-23 236) int found_folios; 04c6b79ae4f0bc Vishal Moola (Oracle 2022-08-23 237) 04c6b79ae4f0bc Vishal Moola (Oracle 2022-08-23 238) found_folios = filemap_get_folios_contig(mapping, &index, 04c6b79ae4f0bc Vishal Moola (Oracle 2022-08-23 239) end_index, &fbatch); 04c6b79ae4f0bc Vishal Moola (Oracle 2022-08-23 240) for (i = 0; i < found_folios; i++) { 04c6b79ae4f0bc Vishal Moola (Oracle 2022-08-23 241) struct folio *folio = fbatch.folios[i]; e74cd6ee58375c Christoph Hellwig 2023-06-28 242 e74cd6ee58375c Christoph Hellwig 2023-06-28 243 process_one_page(fs_info, &folio->page, locked_page, e74cd6ee58375c Christoph Hellwig 2023-06-28 244 page_ops, start, end); 04c6b79ae4f0bc Vishal Moola (Oracle 2022-08-23 245) pages_processed += folio_nr_pages(folio); ed8f13bf4a2ccb Qu Wenruo 2021-05-31 246 } 04c6b79ae4f0bc Vishal Moola (Oracle 2022-08-23 247) folio_batch_release(&fbatch); ed8f13bf4a2ccb Qu Wenruo 2021-05-31 248 cond_resched(); ed8f13bf4a2ccb Qu Wenruo 2021-05-31 249 } ed8f13bf4a2ccb Qu Wenruo 2021-05-31 250 } da2c7009f6cafe Liu Bo 2017-02-10 251 :::::: The code at line 230 was first introduced by commit :::::: ed8f13bf4a2ccb6c90d3210421455c2ceae678de btrfs: refactor page status update into process_one_page() :::::: TO: Qu Wenruo <wqu@xxxxxxxx> :::::: CC: David Sterba <dsterba@xxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
