diff options
Diffstat (limited to 'block/qcow2.c')
| -rw-r--r-- | block/qcow2.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/block/qcow2.c b/block/qcow2.c index 66fba89..4aa9f9e 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -1895,7 +1895,9 @@ qcow2_do_open(BlockDriverState *bs, QDict *options, int flags, g_free(s->image_data_file); if (open_data_file && has_data_file(bs)) { bdrv_graph_co_rdunlock(); + bdrv_drain_all_begin(); bdrv_co_unref_child(bs, s->data_file); + bdrv_drain_all_end(); bdrv_graph_co_rdlock(); s->data_file = NULL; } @@ -2821,7 +2823,7 @@ qcow2_do_close(BlockDriverState *bs, bool close_data_file) if (close_data_file && has_data_file(bs)) { GLOBAL_STATE_CODE(); bdrv_graph_rdunlock_main_loop(); - bdrv_graph_wrlock(); + bdrv_graph_wrlock_drained(); bdrv_unref_child(bs, s->data_file); bdrv_graph_wrunlock(); s->data_file = NULL; |