Hi Boris,

I love your patch! Yet something to improve:

[auto build test ERROR on v5.12-rc2]
[also build test ERROR on next-20210305]
[cannot apply to kdave/for-next]
[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]

url:    https://github.com/0day-ci/linux/commits/Boris-Burkov/btrfs-support-fsverity/20210307-105111
base:    a38fd8748464831584a19438cbb3082b5a2dab15
config: i386-randconfig-m021-20210307 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/230ae9030c4636229de25a9013d979fc8e04f459
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Boris-Burkov/btrfs-support-fsverity/20210307-105111
        git checkout 230ae9030c4636229de25a9013d979fc8e04f459
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

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/btrfs/super.c: In function 'btrfs_fill_super':
>> fs/btrfs/super.c:1342:6: error: 'struct super_block' has no member named 's_vop'; did you mean 's_op'?
    1342 |  sb->s_vop = &btrfs_verityops;
         |      ^~~~~
         |      s_op


vim +1342 fs/btrfs/super.c

  1328	
  1329	static int btrfs_fill_super(struct super_block *sb,
  1330				    struct btrfs_fs_devices *fs_devices,
  1331				    void *data)
  1332	{
  1333		struct inode *inode;
  1334		struct btrfs_fs_info *fs_info = btrfs_sb(sb);
  1335		int err;
  1336	
  1337		sb->s_maxbytes = MAX_LFS_FILESIZE;
  1338		sb->s_magic = BTRFS_SUPER_MAGIC;
  1339		sb->s_op = &btrfs_super_ops;
  1340		sb->s_d_op = &btrfs_dentry_operations;
  1341		sb->s_export_op = &btrfs_export_ops;
> 1342		sb->s_vop = &btrfs_verityops;
  1343		sb->s_xattr = btrfs_xattr_handlers;
  1344		sb->s_time_gran = 1;
  1345	#ifdef CONFIG_BTRFS_FS_POSIX_ACL
  1346		sb->s_flags |= SB_POSIXACL;
  1347	#endif
  1348		sb->s_flags |= SB_I_VERSION;
  1349		sb->s_iflags |= SB_I_CGROUPWB;
  1350	
  1351		err = super_setup_bdi(sb);
  1352		if (err) {
  1353			btrfs_err(fs_info, "super_setup_bdi failed");
  1354			return err;
  1355		}
  1356	
  1357		err = open_ctree(sb, fs_devices, (char *)data);
  1358		if (err) {
  1359			btrfs_err(fs_info, "open_ctree failed");
  1360			return err;
  1361		}
  1362	
  1363		inode = btrfs_iget(sb, BTRFS_FIRST_FREE_OBJECTID, fs_info->fs_root);
  1364		if (IS_ERR(inode)) {
  1365			err = PTR_ERR(inode);
  1366			goto fail_close;
  1367		}
  1368	
  1369		sb->s_root = d_make_root(inode);
  1370		if (!sb->s_root) {
  1371			err = -ENOMEM;
  1372			goto fail_close;
  1373		}
  1374	
  1375		cleancache_init_fs(sb);
  1376		sb->s_flags |= SB_ACTIVE;
  1377		return 0;
  1378	
  1379	fail_close:
  1380		close_ctree(fs_info);
  1381		return err;
  1382	}
  1383	

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