On Mon, May 11, 2020 at 07:09:47PM +0300, Maxim Levitsky wrote:
> diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
> index d87d989e72..ef47cb2d9c 100644
> --- a/include/hw/qdev-core.h
> +++ b/include/hw/qdev-core.h
> @@ -3,6 +3,8 @@
>
> #include "qemu/queue.h"
> #include "qemu/bitmap.h"
> +#include "qemu/rcu.h"
> +#include "qemu/rcu_queue.h"
> #include "qom/object.h"
> #include "hw/hotplug.h"
> #include "hw/resettable.h"
> @@ -230,6 +232,7 @@ struct BusClass {
> };
>
> typedef struct BusChild {
> + struct rcu_head rcu;
> DeviceState *child;
> int index;
> QTAILQ_ENTRY(BusChild) sibling;Please add a doc comment to struct BusState saying the children field is an RCU QTAILQ and writers must hold the QEMU global mutex. Stefan
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