linux-kernel - Re: [PATCH v4 1/5] vsock/virtio: limit the memory used per-socket

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Message-ID: <2398c960-b6d7-8af3-fa25-d75344335db7@redhat.com>
Date:   Mon, 14 Oct 2019 16:21:35 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     Stefan Hajnoczi <stefanha@...hat.com>,
        Stefano Garzarella <sgarzare@...hat.com>
Cc:     "Michael S. Tsirkin" <mst@...hat.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        virtualization@...ts.linux-foundation.org,
        kvm <kvm@...r.kernel.org>
Subject: Re: [PATCH v4 1/5] vsock/virtio: limit the memory used per-socket


On 2019/10/14 下午4:17, Stefan Hajnoczi wrote:
> SO_VM_SOCKETS_BUFFER_SIZE might have been useful for VMCI-specific
> applications, but we should use SO_RCVBUF and SO_SNDBUF for portable
> applications in the future.  Those socket options also work with other
> address families.
>
> I guess these sockopts are bypassed by AF_VSOCK because it doesn't use
> the common skb queuing code in net/core/sock.c:(.  But one day we might
> migrate to it...
>
> Stefan


+1, we should really consider to reuse the exist socket mechanism 
instead of re-inventing wheels.

Thanks