librbd: improve image state machine debug log messages

Signed-off-by: Jason Dillaman <dillaman@redhat.com>
(cherry picked from commit c71182a73146c65dfe7bf955ad67ebeebcf7b1fd)

diff --git a/src/librbd/ImageState.cc b/src/librbd/ImageState.cc
index da9f6d967cf33b79288dc2d0f35a58f572f44bc2..3204307276921f6392ee4ba923c08607a21ecf3c 100644 (file)
--- a/src/librbd/ImageState.cc
+++ b/src/librbd/ImageState.cc
@@ -16,7 +16,7 @@
 
 #define dout_subsys ceph_subsys_rbd
 #undef dout_prefix
-#define dout_prefix *_dout << "librbd::ImageState: "
+#define dout_prefix *_dout << "librbd::ImageState: " << this << " "
 
 namespace librbd {