qcow2: flush refcount cache correctly in qcow2_write_snapshots()
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). Also add the error return path when bdrv_flush() fails and move the flush after checking for qcow2_alloc_clusters() failure so that the qcow2_alloc_clusters() error return value takes precedence. Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
Showing