Hi Boris,

I love your patch! Yet something to improve:

[auto build test ERROR on kdave/for-next]
[also build test ERROR on next-20210408]
[cannot apply to v5.12-rc6]
[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/20210409-023606
base:   https://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-next
config: x86_64-randconfig-a005-20210408 (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/dd118218fea47389631a62ec533207ba39e69b41
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Boris-Burkov/btrfs-support-fsverity/20210409-023606
        git checkout dd118218fea47389631a62ec533207ba39e69b41
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

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:1368:6: error: 'struct super_block' has no member named 's_vop'; did you mean 's_op'?
    1368 |  sb->s_vop = &btrfs_verityops;
         |      ^~~~~
         |      s_op


vim +1368 fs/btrfs/super.c

  1354	
  1355	static int btrfs_fill_super(struct super_block *sb,
  1356				    struct btrfs_fs_devices *fs_devices,
  1357				    void *data)
  1358	{
  1359		struct inode *inode;
  1360		struct btrfs_fs_info *fs_info = btrfs_sb(sb);
  1361		int err;
  1362	
  1363		sb->s_maxbytes = MAX_LFS_FILESIZE;
  1364		sb->s_magic = BTRFS_SUPER_MAGIC;
  1365		sb->s_op = &btrfs_super_ops;
  1366		sb->s_d_op = &btrfs_dentry_operations;
  1367		sb->s_export_op = &btrfs_export_ops;
> 1368		sb->s_vop = &btrfs_verityops;
  1369		sb->s_xattr = btrfs_xattr_handlers;
  1370		sb->s_time_gran = 1;
  1371	#ifdef CONFIG_BTRFS_FS_POSIX_ACL
  1372		sb->s_flags |= SB_POSIXACL;
  1373	#endif
  1374		sb->s_flags |= SB_I_VERSION;
  1375		sb->s_iflags |= SB_I_CGROUPWB;
  1376	
  1377		err = super_setup_bdi(sb);
  1378		if (err) {
  1379			btrfs_err(fs_info, "super_setup_bdi failed");
  1380			return err;
  1381		}
  1382	
  1383		err = open_ctree(sb, fs_devices, (char *)data);
  1384		if (err) {
  1385			btrfs_err(fs_info, "open_ctree failed");
  1386			return err;
  1387		}
  1388	
  1389		inode = btrfs_iget(sb, BTRFS_FIRST_FREE_OBJECTID, fs_info->fs_root);
  1390		if (IS_ERR(inode)) {
  1391			err = PTR_ERR(inode);
  1392			goto fail_close;
  1393		}
  1394	
  1395		sb->s_root = d_make_root(inode);
  1396		if (!sb->s_root) {
  1397			err = -ENOMEM;
  1398			goto fail_close;
  1399		}
  1400	
  1401		cleancache_init_fs(sb);
  1402		sb->s_flags |= SB_ACTIVE;
  1403		return 0;
  1404	
  1405	fail_close:
  1406		close_ctree(fs_info);
  1407		return err;
  1408	}
  1409	

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