Re: [PATCH v2 4/4] virtio-blk: remove batch notification BH

[Eric Blake <eblake@xxxxxxxxxx>]

On Thu, Aug 17, 2023 at 11:58:47AM -0400, Stefan Hajnoczi wrote:
> There is a batching mechanism for virtio-blk Used Buffer Notifications
> that is no longer needed because the previous commit added batching to
> virtio_notify_irqfd().
> 
> Note that this mechanism was rarely used in practice because it is only
> enabled when EVENT_IDX is not negotiated by the driver. Modern drivers
> enable EVENT_IDX.
> 
> Signed-off-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
> ---
>  hw/block/dataplane/virtio-blk.c | 48 +--------------------------------
>  1 file changed, 1 insertion(+), 47 deletions(-)
>

Reviewed-by: Eric Blake <eblake@xxxxxxxxxx>

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.
Virtualization:  qemu.org | libguestfs.org