ovl_setxattr
err = ovl_setxattr(ofs, index, OVL_XATTR_UPPER, fh->buf, fh->fb.len);
return ovl_setxattr(OVL_FS(inode->i_sb), ovl_dentry_upper(dentry),
err = ovl_setxattr(ofs, dentry, ox, fh->buf, fh->fb.len);
err = ovl_setxattr(ofs, ofs->workdir, OVL_XATTR_OPAQUE, "0", 1);
res = ovl_setxattr(ofs, upperpath->dentry, OVL_XATTR_UUID, uuid.b,
err = ovl_setxattr(ofs, upperdentry, ox, value, size);