From ab0e558961ed9b63c00ad1d09ee0f9f79fd62295 Mon Sep 17 00:00:00 2001
From: Jason Dillaman <dillaman@redhat.com>
Date: Tue, 7 Nov 2017 14:17:25 -0500
Subject: [PATCH] librbd: default template parameter for C_SparseReadRequest

Signed-off-by: Jason Dillaman <dillaman@redhat.com>
---
 src/librbd/io/ReadResult.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/librbd/io/ReadResult.h b/src/librbd/io/ReadResult.h
index 76c9f0c21ca..f11e83286a6 100644
--- a/src/librbd/io/ReadResult.h
+++ b/src/librbd/io/ReadResult.h
@@ -15,6 +15,9 @@
 struct CephContext;
 
 namespace librbd {
+
+struct ImageCtx;
+
 namespace io {
 
 struct AioCompletion;
@@ -54,7 +57,7 @@ public:
                 uint64_t offset, size_t length, bufferlist &bl, int r);
   };
 
-  template <typename ImageCtxT>
+  template <typename ImageCtxT = ImageCtx>
   struct C_SparseReadRequest : public C_SparseReadRequestBase {
     ObjectReadRequest<ImageCtxT> *request;
     Extents buffer_extents;
-- 
2.39.5