mds: explain weird encoding

Signed-off-by: Sage Weil <sage@newdream.net>

diff --git a/src/mds/snap.h b/src/mds/snap.h
index fa7c7ba4614a1def0b25e929ed859da0290fd93a..11d3364dfe4c59ceee541fa4a2f5f2043c4d96e3 100644 (file)
--- a/src/mds/snap.h
+++ b/src/mds/snap.h
@@ -125,7 +125,7 @@ struct sr_t {
     __u8 struct_v;
     ::decode(struct_v, p);
     if (struct_v == 2)
-      ::decode(struct_v, p);
+      ::decode(struct_v, p);  // yes, really: extra byte for v2 encoding only, see 6ee52e7d.
     ::decode(seq, p);
     ::decode(created, p);
     ::decode(last_created, p);