os/ObjectMap: add get_db() accessor

This is just to let us get at the underlying KeyValueDB for DBObjectMap.
It is not really better or worse than adding accessors for things like
GetEstimatedSize() to ObjectMap.

Signed-off-by: Sage Weil <sage@redhat.com>
(cherry picked from commit 6c82e66dde715e5e4e12261655c5e7b521871453)

diff --git a/src/os/ObjectMap.h b/src/os/ObjectMap.h
index 4db3f17dc4ba59d973051d3f10c0c5778c511b50..31d413d7fee269c01f78b259c2cc86e3b7fd2bf8 100644 (file)
--- a/src/os/ObjectMap.h
+++ b/src/os/ObjectMap.h
@@ -162,6 +162,7 @@ public:
     return ObjectMapIterator();
   }
 
+  virtual KeyValueDB *get_db() { return nullptr; }
 
   ObjectMap(CephContext* cct) : cct(cct) {}
   virtual ~ObjectMap() {}

diff --git a/src/os/filestore/DBObjectMap.h b/src/os/filestore/DBObjectMap.h
index 4d9bda912cbde8779382ed743ab8e1649b4fc744..15d74aa87af2cb88cd1ef01e05389c304bc091d8 100644 (file)
--- a/src/os/filestore/DBObjectMap.h
+++ b/src/os/filestore/DBObjectMap.h
@@ -59,6 +59,8 @@ class DBObjectMap : public ObjectMap {
 public:
   boost::scoped_ptr<KeyValueDB> db;
 
+  KeyValueDB *get_db() override { return db.get(); }
+
   /**
    * Serializes access to next_seq as well as the in_use set
    */