Re: [PATCH V3 3/9] virtio: introduce config op to synchronize vring callbacks

Cornelia Huck
2022-04-29T07:25:29Z

On Fri, Apr 29 2022, Jason Wang <jasowang@redhat.com> wrote:

> On Thu, Apr 28, 2022 at 5:13 PM Cornelia Huck <cohuck@redhat.com> wrote:
>>
>> On Mon, Apr 25 2022, Jason Wang <jasowang@redhat.com> wrote:
>>
>> > This patch introduces new virtio config op to vring
>> > callbacks. Transport specific method is required to make sure the
>> > write before this function is visible to the vring_interrupt() that is
>>
>> Which kind of writes? I.e., what is the scope?
>
> Any writes before synchronize_cbs(). Is something like the following better?
>
> The function guarantees that all memory operations before it are
> visible to the vring_interrupt() that is called after it.

Maybe "all memory operations on the queue"?