From 6e8d7d42016514698a7eed0644ea30a699771fc4 Mon Sep 17 00:00:00 2001
From: Rusty Bird <rustybird@net-c.com>
Date: Sun, 9 Sep 2018 20:01:19 +0000
Subject: [PATCH] storage/reflink: no-op import_volume() if not save_on_stop

Instead of raising a NotImplementedError, just return self like 'file'
and lvm_thin. This is needed when Storage.clone() is modified in another
commit* to no longer swallow exceptions.

* "storage: factor out _wait_and_reraise(); fix clone/create"
---
 qubes/storage/reflink.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/qubes/storage/reflink.py b/qubes/storage/reflink.py
index 264a8b5d..8b169c92 100644
--- a/qubes/storage/reflink.py
+++ b/qubes/storage/reflink.py
@@ -276,7 +276,8 @@ class ReflinkVolume(qubes.storage.Volume):
         return self
 
     def import_volume(self, src_volume):
-        self._require_save_on_stop('import_volume')
+        if not self.save_on_stop:
+            return self
         try:
             _copy_file(src_volume.export(), self._path_import)
         except: