Re: [PATCH] ntfs3: Fix WARNING in ntfs_extend_initialized_size

[kernel test robot <lkp@intel.com>]

Hi Edward,

kernel test robot noticed the following build errors:

[auto build test ERROR on brauner-vfs/vfs.all]
[also build test ERROR on linus/master v6.12-rc2 next-20241010]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Edward-Adam-Davis/ntfs3-Fix-WARNING-in-ntfs_extend_initialized_size/20241007-191224
base:   https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git vfs.all
patch link:    https://lore.kernel.org/r/tencent_EE134FDF8DFFA5E18D84121FDDE5DDB41907%40qq.com
patch subject: [PATCH] ntfs3: Fix WARNING in ntfs_extend_initialized_size
config: i386-buildonly-randconfig-001-20241010 (https://download.01.org/0day-ci/archive/20241010/202410101748.6VtnyCOG-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241010/202410101748.6VtnyCOG-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410101748.6VtnyCOG-lkp@intel.com/

All errors (new ones prefixed by >>):

>> fs/ntfs3/file.c:402:15: error: no member named 'valid' in 'struct ntfs_inode'
     402 |                 WARN_ON(ni->valid >= pos);
         |                         ~~  ^
   include/asm-generic/bug.h:123:25: note: expanded from macro 'WARN_ON'
     123 |         int __ret_warn_on = !!(condition);                              \
         |                                ^~~~~~~~~
   1 error generated.


vim +402 fs/ntfs3/file.c

   379	
   380	static int ntfs_extend(struct inode *inode, loff_t pos, size_t count,
   381			       struct file *file)
   382	{
   383		struct ntfs_inode *ni = ntfs_i(inode);
   384		struct address_space *mapping = inode->i_mapping;
   385		loff_t end = pos + count;
   386		bool extend_init = file && pos > ni->i_valid;
   387		int err;
   388	
   389		if (end <= inode->i_size && !extend_init)
   390			return 0;
   391	
   392		/* Mark rw ntfs as dirty. It will be cleared at umount. */
   393		ntfs_set_state(ni->mi.sbi, NTFS_DIRTY_DIRTY);
   394	
   395		if (end > inode->i_size) {
   396			err = ntfs_set_size(inode, end);
   397			if (err)
   398				goto out;
   399		}
   400	
   401		if (extend_init && !is_compressed(ni)) {
 > 402			WARN_ON(ni->valid >= pos);
   403			err = ntfs_extend_initialized_size(file, ni, ni->i_valid, pos);
   404			if (err)
   405				goto out;
   406		} else {
   407			err = 0;
   408		}
   409	
   410		inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
   411		mark_inode_dirty(inode);
   412	
   413		if (IS_SYNC(inode)) {
   414			int err2;
   415	
   416			err = filemap_fdatawrite_range(mapping, pos, end - 1);
   417			err2 = sync_mapping_buffers(mapping);
   418			if (!err)
   419				err = err2;
   420			err2 = write_inode_now(inode, 1);
   421			if (!err)
   422				err = err2;
   423			if (!err)
   424				err = filemap_fdatawait_range(mapping, pos, end - 1);
   425		}
   426	
   427	out:
   428		return err;
   429	}
   430	

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