librbd: copy snap map into deep copy object copy request

We must not use a reference to in-memory migration info as it might be
updated in background by refresh.

Signed-off-by: Mykola Golub <mgolub@suse.com>

diff --git a/src/librbd/deep_copy/ObjectCopyRequest.h b/src/librbd/deep_copy/ObjectCopyRequest.h
index 4f53826117b76435658b21eed119995e5450029d..090f42ffc00cc9ef1192d11d6af34cc72f85024f 100644 (file)
--- a/src/librbd/deep_copy/ObjectCopyRequest.h
+++ b/src/librbd/deep_copy/ObjectCopyRequest.h
@@ -133,7 +133,7 @@ private:
   ImageCtxT *m_src_image_ctx;
   ImageCtxT *m_dst_image_ctx;
   CephContext *m_cct;
-  const SnapMap &m_snap_map;
+  SnapMap m_snap_map;
   uint64_t m_dst_object_number;
   bool m_flatten;
   Context *m_on_finish;