linux-kernel - Re: [RFC PATCH v1 07/16] virtio/vsock: don't count EORs on receive

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Message-ID: <11d22d50-d15d-43ef-166c-7d11d0205cda@kaspersky.com>
Date:   Wed, 30 Jun 2021 20:47:44 +0300
From:   Arseny Krasnov <arseny.krasnov@...persky.com>
To:     Stefano Garzarella <sgarzare@...hat.com>
CC:     Stefan Hajnoczi <stefanha@...hat.com>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Norbert Slusarek <nslusarek@....net>,
        Andra Paraschiv <andraprs@...zon.com>,
        Colin Ian King <colin.king@...onical.com>,
        kvm <kvm@...r.kernel.org>,
        Linux Virtualization <virtualization@...ts.linux-foundation.org>,
        netdev <netdev@...r.kernel.org>,
        kernel list <linux-kernel@...r.kernel.org>,
        Krasnov Arseniy <oxffffaa@...il.com>
Subject: Re: [RFC PATCH v1 07/16] virtio/vsock: don't count EORs on receive


On 30.06.2021 15:11, Stefano Garzarella wrote:
> On Mon, Jun 28, 2021 at 01:03:15PM +0300, Arseny Krasnov wrote:
>> There is no sense to count EORs, because 'rx_bytes' is
>> used to check data presence on socket.
>>
>> Signed-off-by: Arseny Krasnov <arseny.krasnov@...persky.com>
>> ---
>> net/vmw_vsock/virtio_transport_common.c | 3 ---
>> 1 file changed, 3 deletions(-)
>>
>> diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
>> index 84431d7a87a5..319c3345f3e0 100644
>> --- a/net/vmw_vsock/virtio_transport_common.c
>> +++ b/net/vmw_vsock/virtio_transport_common.c
>> @@ -1005,9 +1005,6 @@ virtio_transport_recv_enqueue(struct vsock_sock *vsk,
>>               goto out;
>>       }
>>
>> -      if (le32_to_cpu(pkt->hdr.flags) & VIRTIO_VSOCK_SEQ_EOR)
>> -              vvs->msg_count++;
>> -
> Same here, please remove it when you don't need it, and also remove from
> the struct virtio_vsock_sock.
>
> Thanks,
> Stefano
Ack
>
>>       /* Try to copy small packets into the buffer of last packet queued,
>>        * to avoid wasting memory queueing the entire buffer with a small
>>        * payload.
>> --
>> 2.25.1
>>
>