diff mbox series

[v4,05/45] tests-bdrv-drain: bdrv_replace_test driver: declare supports_backing

Message ID 20220329204107.411011-6-v.sementsov-og@mail.ru (mailing list archive)
State New, archived
Headers show
Series Transactional block-graph modifying API | expand

Commit Message

Vladimir Sementsov-Ogievskiy March 29, 2022, 8:40 p.m. UTC 
We do add COW child to the node.  In future we are going to forbid
adding COW child to the node that doesn't support backing. So, fix it
here now.

Don't worry about setting bs->backing itself: it further commit we'll
update the block-layer to automatically set/unset this field in generic
code.

Signed-off-by: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
---
 tests/unit/test-bdrv-drain.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/tests/unit/test-bdrv-drain.c b/tests/unit/test-bdrv-drain.c
index 36be84ae55..23d425a494 100644
--- a/tests/unit/test-bdrv-drain.c
+++ b/tests/unit/test-bdrv-drain.c
@@ -1948,6 +1948,7 @@  static void coroutine_fn bdrv_replace_test_co_drain_end(BlockDriverState *bs)
 static BlockDriver bdrv_replace_test = {
     .format_name            = "replace_test",
     .instance_size          = sizeof(BDRVReplaceTestState),
+    .supports_backing       = true,
 
     .bdrv_close             = bdrv_replace_test_close,
     .bdrv_co_preadv         = bdrv_replace_test_co_preadv,