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diff --git a/src/ceph/src/libradosstriper/MultiAioCompletionImpl.cc b/src/ceph/src/libradosstriper/MultiAioCompletionImpl.cc
new file mode 100644
index 0000000..7bb21bc
--- /dev/null
+++ b/src/ceph/src/libradosstriper/MultiAioCompletionImpl.cc
@@ -0,0 +1,71 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2014 Sebastien Ponce <sebastien.ponce@cern.ch>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ *
+ */
+
+#include "common/dout.h"
+
+#include "libradosstriper/MultiAioCompletionImpl.h"
+
+void libradosstriper::MultiAioCompletionImpl::complete_request(ssize_t r)
+{
+  lock.Lock();
+  if (rval >= 0) {
+    if (r < 0 && r != -EEXIST)
+      rval = r;
+    else if (r > 0)
+      rval += r;
+  }
+  assert(pending_complete);
+  int count = --pending_complete;
+  if (!count && !building) {
+    complete();
+  }
+  put_unlock();
+}
+
+void libradosstriper::MultiAioCompletionImpl::safe_request(ssize_t r)
+{
+  lock.Lock();
+  if (rval >= 0) {
+    if (r < 0 && r != -EEXIST)
+      rval = r;
+  }
+  assert(pending_safe);
+  int count = --pending_safe;
+  if (!count && !building) {
+    safe();
+  }
+  put_unlock();
+}
+
+void libradosstriper::MultiAioCompletionImpl::finish_adding_requests()
+{
+  lock.Lock();
+  assert(building);
+  building = false;
+  if (!pending_complete)
+    complete();
+  if (!pending_safe)
+    safe();
+  lock.Unlock();
+}
+
+void intrusive_ptr_add_ref(libradosstriper::MultiAioCompletionImpl* ptr)
+{
+  ptr->get();
+}
+
+void intrusive_ptr_release(libradosstriper::MultiAioCompletionImpl* ptr)
+{
+  ptr->put();
+}