int mnt_fs_get_tag(struct libmnt_fs *fs, const char **name, const char **value)
{
	if (fs == NULL || !fs->tagname)
		return -EINVAL;
	if (name)
		*name = fs->tagname;
	if (value)
		*value = fs->tagval;
	return 0;
}
int mnt_fs_get_tag(struct libmnt_fs *fs, const char **name, const char **value)
{
	if (fs == NULL || !fs->tagname)
		return -EINVAL;
	if (name)
		*name = fs->tagname;
	if (value)
		*value = fs->tagval;
	return 0;
}