diff options
| -rw-r--r-- | blockdev.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/blockdev.c b/blockdev.c index 8eb4e84fe0..af67ce4e56 100644 --- a/blockdev.c +++ b/blockdev.c @@ -1614,6 +1614,7 @@ typedef struct ExternalSnapshotState { BlockDriverState *old_bs; BlockDriverState *new_bs; AioContext *aio_context; + bool overlay_appended; } ExternalSnapshotState; static void external_snapshot_prepare(BlkActionState *common, @@ -1780,6 +1781,7 @@ static void external_snapshot_prepare(BlkActionState *common, error_propagate(errp, local_err); return; } + state->overlay_appended = true; } static void external_snapshot_commit(BlkActionState *common) @@ -1803,7 +1805,7 @@ static void external_snapshot_abort(BlkActionState *common) ExternalSnapshotState *state = DO_UPCAST(ExternalSnapshotState, common, common); if (state->new_bs) { - if (state->new_bs->backing) { + if (state->overlay_appended) { bdrv_replace_in_backing_chain(state->new_bs, state->old_bs); } } |