Re: [PATCH net-next 07/14] vsock: handle buffer_size sockopts in the core

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On Wed, Oct 23, 2019 at 11:55:47AM +0200, Stefano Garzarella wrote:
> virtio_transport and vmci_transport handle the buffer_size
> sockopts in a very similar way.
> 
> In order to support multiple transports, this patch moves this
> handling in the core to allow the user to change the options
> also if the socket is not yet assigned to any transport.
> 
> This patch also adds the '.notify_buffer_size' callback in the
> 'struct virtio_transport' in order to inform the transport,
> when the buffer_size is changed by the user. It is also useful
> to limit the 'buffer_size' requested (e.g. virtio transports).
> 
> Acked-by: Dexuan Cui <decui@xxxxxxxxxxxxx>
> Signed-off-by: Stefano Garzarella <sgarzare@xxxxxxxxxx>
> ---
> RFC -> v1:
> - changed .notify_buffer_size return to void (Stefan)
> - documented that .notify_buffer_size is called with sk_lock held (Stefan)
> ---
>  drivers/vhost/vsock.c                   |  7 +-
>  include/linux/virtio_vsock.h            | 15 +----
>  include/net/af_vsock.h                  | 15 ++---
>  net/vmw_vsock/af_vsock.c                | 43 ++++++++++---
>  net/vmw_vsock/hyperv_transport.c        | 36 -----------
>  net/vmw_vsock/virtio_transport.c        |  8 +--
>  net/vmw_vsock/virtio_transport_common.c | 79 ++++-------------------
>  net/vmw_vsock/vmci_transport.c          | 86 +++----------------------
>  net/vmw_vsock/vmci_transport.h          |  3 -
>  9 files changed, 65 insertions(+), 227 deletions(-)

Reviewed-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>

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