From b148bdbeec588b90a25466954d1df2fb28f59b7a Mon Sep 17 00:00:00 2001
From: Radoslaw Zarzynski <rzarzyns@redhat.com>
Date: Tue, 17 Sep 2019 20:31:40 +0200
Subject: [PATCH] crimson: introduce make_plain_exception_future() to
 errorator.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>
---
 src/crimson/common/errorator.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/crimson/common/errorator.h b/src/crimson/common/errorator.h
index fc91b85fff3..f98a2a9c147 100644
--- a/src/crimson/common/errorator.h
+++ b/src/crimson/common/errorator.h
@@ -433,6 +433,15 @@ struct errorator {
     }
   };
 
+  template <class... ValuesT, class ErrorT>
+  static auto make_plain_exception_future(ErrorT&& e) noexcept {
+    using decayed_t = std::decay_t<ErrorT>;
+    static_assert((... || std::is_same_v<AllowedErrors, decayed_t>),
+                  "passing further disallowed ErrorT");
+    return ::seastar::make_exception_future<ValuesT...>(
+      make_exception_ptr(std::forward<ErrorT>(e)));
+  }
+
   // the visitor that forwards handling of all errors to next continuation
   struct pass_further {
     template <class ErrorT>
-- 
2.39.5