static void commit_complete(BlockJob *job, void *opaque) { CommitBlockJob *s = container_of(job, CommitBlockJob, common); CommitCompleteData *data = opaque; BlockDriverState *active = s->active; BlockDriverState *top = blk_bs(s->top); BlockDriverState *base = blk_bs(s->base); BlockDriverState *overlay_bs = bdrv_find_overlay(active, top); int ret = data->ret; if (!block_job_is_cancelled(&s->common) && ret == 0) { /* success */ ret = bdrv_drop_intermediate(active, top, base, s->backing_file_str); } /* restore base open flags here if appropriate (e.g., change the base back * to r/o). These reopens do not need to be atomic, since we won't abort * even on failure here */ if (s->base_flags != bdrv_get_flags(base)) { bdrv_reopen(base, s->base_flags, NULL); } if (overlay_bs && s->orig_overlay_flags != bdrv_get_flags(overlay_bs)) { bdrv_reopen(overlay_bs, s->orig_overlay_flags, NULL); } g_free(s->backing_file_str); blk_unref(s->top); blk_unref(s->base); block_job_completed(&s->common, ret); g_free(data); }