void iothread_stop_all(void) { Object *container = object_get_objects_root(); BlockDriverState *bs; BdrvNextIterator it; for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) { AioContext *ctx = bdrv_get_aio_context(bs); if (ctx == qemu_get_aio_context()) { continue; } aio_context_acquire(ctx); bdrv_set_aio_context(bs, qemu_get_aio_context()); aio_context_release(ctx); } object_child_foreach(container, iothread_stop, NULL); }