Since qcow2 metadata is cached we need to flush the caches, not just the underlying file. Use bdrv_flush(bs) instead of bdrv_flush(bs->file).
Signed-off-by: Stefan Hajnoczi <[email protected]> --- block/qcow2-snapshot.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/qcow2-snapshot.c b/block/qcow2-snapshot.c index eb8fcd5..429bbff 100644 --- a/block/qcow2-snapshot.c +++ b/block/qcow2-snapshot.c @@ -180,7 +180,7 @@ static int qcow2_write_snapshots(BlockDriverState *bs) /* Allocate space for the new snapshot list */ snapshots_offset = qcow2_alloc_clusters(bs, snapshots_size); - bdrv_flush(bs->file); + bdrv_flush(bs); offset = snapshots_offset; if (offset < 0) { return offset; -- 1.8.1.2
