tree: https://github.com/ammarfaizi2/linux-block dhowells/linux-fs/netfs-maple head: 429e2bb6fb190f390ed23afc0d2308e877c43be5 commit: 9c1befbc079fcef04228d2b67e931f9635d58591 [25/35] vfs: Take I_SYNC whilst performing fsync() and similar config: arc-defconfig (https://download.01.org/0day-ci/archive/20220211/202202111544.8rMkF0G8-lk...) compiler: arc-elf-gcc (GCC) 11.2.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/ammarfaizi2/linux-block/commit/9c1befbc079fcef04228d2b... git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block git fetch --no-tags ammarfaizi2-block dhowells/linux-fs/netfs-maple git checkout 9c1befbc079fcef04228d2b67e931f9635d58591 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arc SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): fs/fs-writeback.c: In function 'filemap_fdatawrite_wbc': 2789 | wbc_attach_unlock_fdatawrite_inode(wbc, inode); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | wbc_attach_fdatawrite_inode cc1: some warnings being treated as errors vim +2789 fs/fs-writeback.c 2762 2763 /** 2764 * filemap_fdatawrite_wbc - start writeback on mapping dirty pages in range 2765 * @mapping: address space structure to write 2766 * @wbc: the writeback_control controlling the writeout 2767 * 2768 * Call writepages on the mapping using the provided wbc to control the 2769 * writeout. 2770 * 2771 * Return: %0 on success, negative error code otherwise. 2772 */ 2773 int filemap_fdatawrite_wbc(struct address_space *mapping, 2774 struct writeback_control *wbc) 2775 { 2776 struct inode *inode = mapping->host; 2777 int ret; 2778 2779 if (!mapping_can_writeback(mapping) || 2780 !mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) 2781 return 0; 2782 2783 spin_lock(&inode->i_lock); 2784 if (inode->i_state & I_SYNC) { 2785 __inode_wait_for_writeback(inode); 2786 WARN_ON(inode->i_state & I_SYNC); 2787 } 2788 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org