tree:   https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git zero-initialize-pmem-5.16
head:   34b80c3d1203abd5fd64242ef25898c7d64166ca
commit: 34b80c3d1203abd5fd64242ef25898c7d64166ca [28/28] ext4: implement FALLOC_FL_ZEROINIT_RANGE
config: um-x86_64_defconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git/commit/?id=34b80c3d1203abd5fd64242ef25898c7d64166ca
        git remote add djwong-xfs https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git
        git fetch --no-tags djwong-xfs zero-initialize-pmem-5.16
        git checkout 34b80c3d1203abd5fd64242ef25898c7d64166ca
        # save the attached .config to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=um SUBARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   fs/ext4/extents.c: In function 'ext4_zeroinit_range':
>> fs/ext4/extents.c:4488:4: error: 'FALLOC_FL_ZEROINIT_RANGE' undeclared (first use in this function); did you mean 'FALLOC_FL_ZERO_RANGE'?
    4488 |    FALLOC_FL_ZEROINIT_RANGE | FALLOC_FL_KEEP_SIZE);
         |    ^~~~~~~~~~~~~~~~~~~~~~~~
         |    FALLOC_FL_ZERO_RANGE
   fs/ext4/extents.c:4488:4: note: each undeclared identifier is reported only once for each function it appears in
   fs/ext4/extents.c: In function 'ext4_fallocate':
   fs/ext4/extents.c:4743:33: error: 'FALLOC_FL_ZEROINIT_RANGE' undeclared (first use in this function); did you mean 'FALLOC_FL_ZERO_RANGE'?
    4743 |        FALLOC_FL_INSERT_RANGE | FALLOC_FL_ZEROINIT_RANGE))
         |                                 ^~~~~~~~~~~~~~~~~~~~~~~~
         |                                 FALLOC_FL_ZERO_RANGE


vim +4488 fs/ext4/extents.c

  4478	
  4479	static long ext4_zeroinit_range(struct file *file, loff_t offset, loff_t len)
  4480	{
  4481		struct inode *inode = file_inode(file);
  4482		struct address_space *mapping = inode->i_mapping;
  4483		handle_t *handle = NULL;
  4484		loff_t end = offset + len;
  4485		long ret;
  4486	
  4487		trace_ext4_zeroinit_range(inode, offset, len,
> 4488				FALLOC_FL_ZEROINIT_RANGE | FALLOC_FL_KEEP_SIZE);
  4489	
  4490		/* We don't support data=journal mode */
  4491		if (ext4_should_journal_data(inode))
  4492			return -EOPNOTSUPP;
  4493	
  4494		inode_lock(inode);
  4495	
  4496		/*
  4497		 * Indirect files do not support unwritten extents
  4498		 */
  4499		if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) {
  4500			ret = -EOPNOTSUPP;
  4501			goto out_mutex;
  4502		}
  4503	
  4504		/* Wait all existing dio workers, newcomers will block on i_mutex */
  4505		inode_dio_wait(inode);
  4506	
  4507		/*
  4508		 * Prevent page faults from reinstantiating pages we have released from
  4509		 * page cache.
  4510		 */
  4511		filemap_invalidate_lock(mapping);
  4512	
  4513		ret = ext4_break_layouts(inode);
  4514		if (ret)
  4515			goto out_mmap;
  4516	
  4517		/* Now release the pages and zero block aligned part of pages */
  4518		truncate_pagecache_range(inode, offset, end - 1);
  4519		inode->i_mtime = inode->i_ctime = current_time(inode);
  4520	
  4521		if (IS_DAX(inode))
  4522			ret = dax_zeroinit_range(inode, offset, len,
  4523					&ext4_iomap_report_ops);
  4524		else
  4525			ret = iomap_zeroout_range(inode, offset, len,
  4526					&ext4_iomap_report_ops);
  4527		if (ret == -ECANCELED)
  4528			ret = -EOPNOTSUPP;
  4529		if (ret)
  4530			goto out_mmap;
  4531	
  4532		handle = ext4_journal_start(inode, EXT4_HT_MISC, 1);
  4533		if (IS_ERR(handle)) {
  4534			ret = PTR_ERR(handle);
  4535			ext4_std_error(inode->i_sb, ret);
  4536			goto out_mmap;
  4537		}
  4538	
  4539		inode->i_mtime = inode->i_ctime = current_time(inode);
  4540		ret = ext4_mark_inode_dirty(handle, inode);
  4541		if (unlikely(ret))
  4542			goto out_handle;
  4543		ext4_fc_track_range(handle, inode, offset >> inode->i_sb->s_blocksize_bits,
  4544				(offset + len - 1) >> inode->i_sb->s_blocksize_bits);
  4545		ext4_update_inode_fsync_trans(handle, inode, 1);
  4546	
  4547		if (file->f_flags & O_SYNC)
  4548			ext4_handle_sync(handle);
  4549	
  4550	out_handle:
  4551		ext4_journal_stop(handle);
  4552	out_mmap:
  4553		filemap_invalidate_unlock(mapping);
  4554	out_mutex:
  4555		inode_unlock(inode);
  4556		return ret;
  4557	}
  4558	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org