Re: [PATCH v2] hw/virtio: Document *_should_notify() are called within rcu_read_lock()

[Laurent Vivier]

Le 23/05/2021 à 11:40, Philippe Mathieu-Daudé a écrit :
> Such comments make reviewing this file somehow easier.
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
> v2: only one space before end of comment (mst)
> ---
>  hw/virtio/virtio.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
> index e02544b2df7..130e3568409 100644
> --- a/hw/virtio/virtio.c
> +++ b/hw/virtio/virtio.c
> @@ -2449,6 +2449,7 @@ static void virtio_set_isr(VirtIODevice *vdev, int 
> value)
>      }
>  }
>  
> +/* Called within rcu_read_lock(). */
>  static bool virtio_split_should_notify(VirtIODevice *vdev, VirtQueue *vq)
>  {
>      uint16_t old, new;
> @@ -2485,6 +2486,7 @@ static bool vring_packed_need_event(VirtQueue *vq, bool 
> wrap,
>      return vring_need_event(off, new, old);
>  }
>  
> +/* Called within rcu_read_lock(). */
>  static bool virtio_packed_should_notify(VirtIODevice *vdev, VirtQueue *vq)
>  {
>      VRingPackedDescEvent e;
> 

Reviewed-by: Laurent Vivier <laurent@vivier.eu>