crimson: make seastar::do_with() a friend of errorated futures.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

diff --git a/src/crimson/common/errorator.h b/src/crimson/common/errorator.h
index dc0ec2e61c8b4d17b9a505606219d129d50978df..137f55d0a16279d4e9ab3bfc56e5338564f48c27 100644 (file)
--- a/src/crimson/common/errorator.h
+++ b/src/crimson/common/errorator.h
@@ -604,6 +604,10 @@ private:
 
     template <class...>
     friend class ::seastar::future;
+
+    // let seastar::do_with to up-cast us to seastar::future.
+    template<typename T, typename F>
+    friend inline auto ::seastar::do_with(T&&, F&&);
   };
 
 public: