rados: comment SnapContext fields

diff --git a/src/include/types.h b/src/include/types.h
index 58d9e2fb7e3745cfbdec60435aaf46dbf5c76bc2..47f816c2ddbb059d4b0e74d9ef02f3eb73fde3ed 100644 (file)
--- a/src/include/types.h
+++ b/src/include/types.h
@@ -322,8 +322,8 @@ WRITE_CLASS_ENCODER(SnapRealmInfo)
 
 
 struct SnapContext {
-  snapid_t seq;
-  vector<snapid_t> snaps;
+  snapid_t seq;            // 'time' stamp
+  vector<snapid_t> snaps;  // existent snaps, in descending order
 
   void clear() {
     seq = 0;