[GFS2] gfs2 misc endianness annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 009d86c..5d00e9b 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -539,8 +539,7 @@
 		qc->qc_id = cpu_to_be32(qd->qd_id);
 	}
 
-	x = qc->qc_change;
-	x = be64_to_cpu(x) + change;
+	x = be64_to_cpu(qc->qc_change) + change;
 	qc->qc_change = cpu_to_be64(x);
 
 	spin_lock(&sdp->sd_quota_spin);