librbd: execute flush completion outside of cache_lock

Signed-off-by: Jason Dillaman <dillaman@redhat.com>
(cherry picked from commit 5f157f20980de7e9a05fb933fb57efdc759da78b)

diff --git a/src/librbd/ImageCtx.cc b/src/librbd/ImageCtx.cc
index 6092963e9f13be7ddf61799680ef2fbe17c09641..47133e91705223d39bdb1425a7e3cb87a7a1cb92 100644 (file)
--- a/src/librbd/ImageCtx.cc
+++ b/src/librbd/ImageCtx.cc
@@ -736,7 +736,8 @@ public:
                  << unclean << " bytes remain" << dendl;
       r = -EBUSY;
     }
-    on_finish->complete(r);
+
+    op_work_queue->queue(on_finish, r);
   }
 
   void ImageCtx::clear_nonexistence_cache() {