xfs: update both stat counters together in xlog_sync

Just a small bit of code tidying up.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

fs/xfs/xfs_log.c

@@ -1859,7 +1859,6 @@ xlog_sync(
 	unsigned int		size;
 	bool			need_flush = true;
 
-	XFS_STATS_INC(log->l_mp, xs_log_writes);
 	ASSERT(atomic_read(&iclog->ic_refcnt) == 0);
 
 	count = xlog_calc_iclog_size(log, iclog, &roundoff);
@@ -1877,6 +1876,7 @@ xlog_sync(
 		size += roundoff;
 	iclog->ic_header.h_len = cpu_to_be32(size);
 
+	XFS_STATS_INC(log->l_mp, xs_log_writes);
 	XFS_STATS_ADD(log->l_mp, xs_log_blocks, BTOBB(count));
 
 	bno = BLOCK_LSN(be64_to_cpu(iclog->ic_header.h_lsn));