Linux Virtualization - Mar 2023 - [RFC PATCH v4 0/4] several updates to virtio/vsock

On Fri, Mar 10, 2023 at 12:42:13PM +0300, Arseniy Krasnov
wrote:
>
>
>On 10.03.2023 12:09, Stefano Garzarella wrote:
>> Hi Arseniy,
>>
>> On Thu, Mar 09, 2023 at 11:24:42PM +0300, Arseniy Krasnov wrote:
>>> Hello,
>>>
>>> this patchset evolved from previous v2 version (see link below). It
does
>>> several updates to virtio/vsock:
>>> 1) Changes 'virtio_transport_inc/dec_rx_pkt()' interface.
Now instead of
>>> ? using skbuff state ('head' and 'data' pointers)
to update 'fwd_cnt'
>>> ? and 'rx_bytes', integer value is passed as an input
argument. This
>>> ? makes code more simple, because in this case we don't need to
update
>>> ? skbuff state before calling
'virtio_transport_inc/dec_rx_pkt()'. In
>>> ? more common words - we don't need to change skbuff state to
update
>>> ? 'rx_bytes' and 'fwd_cnt' correctly.
>>> 2) For SOCK_STREAM, when copying data to user fails, current skbuff
is
>>> ? not dropped. Next read attempt will use same skbuff and last
offset.
>>> ? Instead of 'skb_dequeue()', 'skb_peek()' +
'__skb_unlink()' are used.
>>> ? This behaviour was implemented before skbuff support.
>>> 3) For SOCK_SEQPACKET it removes unneeded 'skb_pull()'
call, because for
>>> ? this type of socket each skbuff is used only once: after removing
it
>>> ? from socket's queue, it will be freed anyway.
>>
>> thanks for the fixes, I would wait a few days to see if there are any
>> comments and then I think you can send it on net without RFC.
>>
>> @Bobby if you can take a look, your ack would be appreciated :-)
>Ok, thanks for review. I'll wait for several days and also wait until
>net-next will be opened. Then i'll resend this patchset with net-next
Since they are fixes, they should go with the net tree, not net-next.

Cheers,
Stefano