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

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Message-ID: <CAGxU2F7SsxvCht2HbDb7dKsM_auHoxvHirgWwNMObjxOci=5nA@mail.gmail.com>
Date:   Wed, 30 Jun 2021 14:11:24 +0200
From:   Stefano Garzarella <sgarzare@...hat.com>
To:     Arseny Krasnov <arseny.krasnov@...persky.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 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

>       /* 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
>