static inline void oldest_client_lsn(const struct CLIENT_REC *ca,
				     __le16 next_client, u64 *oldest_lsn)
{
	while (next_client != LFS_NO_CLIENT_LE) {
		const struct CLIENT_REC *cr = ca + le16_to_cpu(next_client);
		u64 lsn = le64_to_cpu(cr->oldest_lsn);

		/* Ignore this block if it's oldest lsn is 0. */
		if (lsn && lsn < *oldest_lsn)
			*oldest_lsn = lsn;

		next_client = cr->next_client;
	}
}
static inline void oldest_client_lsn(const struct CLIENT_REC *ca,
				     __le16 next_client, u64 *oldest_lsn)
{
	while (next_client != LFS_NO_CLIENT_LE) {
		const struct CLIENT_REC *cr = ca + le16_to_cpu(next_client);
		u64 lsn = le64_to_cpu(cr->oldest_lsn);

		 
		if (lsn && lsn < *oldest_lsn)
			*oldest_lsn = lsn;

		next_client = cr->next_client;
	}
}