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From: Jorgen Hansen <jhansen@vmware.com>
To: 'Stefano Garzarella' <sgarzare@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jason Wang <jasowang@redhat.com>,
	"David S. Miller" <davem@davemloft.net>,
	Dexuan Cui <decui@microsoft.com>,
	Haiyang Zhang <haiyangz@microsoft.com>,
	Sasha Levin <sashal@kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Arnd Bergmann <arnd@arndb.de>,
	Stefan Hajnoczi <stefanha@redhat.com>,
	"linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>,
	"K. Y. Srinivasan" <kys@microsoft.com>,
	Stephen Hemminger <sthemmin@microsoft.com>,
	"virtualization@lists.linux-foundation.org" 
	<virtualization@lists.linux-foundation.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: RE: [PATCH net-next 06/14] vsock: add 'struct vsock_sock *' param to vsock_core_get_transport()
Date: Wed, 30 Oct 2019 15:01:39 +0000
Message-ID: <MWHPR05MB3376B7BEE1400BDEFCC64EDDDA600@MWHPR05MB3376.namprd05.prod.outlook.com> (raw)
In-Reply-To: <20191023095554.11340-7-sgarzare@redhat.com>

> From: Stefano Garzarella [mailto:sgarzare@redhat.com]
> Sent: Wednesday, October 23, 2019 11:56 AM
> Subject: [PATCH net-next 06/14] vsock: add 'struct vsock_sock *' param to
> vsock_core_get_transport()
> 
> Since now the 'struct vsock_sock' object contains a pointer to the transport,
> this patch adds a parameter to the
> vsock_core_get_transport() to return the right transport assigned to the
> socket.
> 
> This patch modifies also the virtio_transport_get_ops(), that uses the
> vsock_core_get_transport(), adding the 'struct vsock_sock *' parameter.
> 
> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
> Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
> ---
> RFC -> v1:
> - Removed comment about protecting transport_single (Stefan)
> ---
>  include/net/af_vsock.h                  | 2 +-
>  net/vmw_vsock/af_vsock.c                | 7 ++-----
>  net/vmw_vsock/virtio_transport_common.c | 9 +++++----
>  3 files changed, 8 insertions(+), 10 deletions(-)
> 
> diff --git a/include/net/af_vsock.h b/include/net/af_vsock.h index
> a5e1e134261d..2ca67d048de4 100644
> --- a/include/net/af_vsock.h
> +++ b/include/net/af_vsock.h
> @@ -166,7 +166,7 @@ static inline int vsock_core_init(const struct
> vsock_transport *t)  void vsock_core_exit(void);
> 
>  /* The transport may downcast this to access transport-specific functions */
> -const struct vsock_transport *vsock_core_get_transport(void);
> +const struct vsock_transport *vsock_core_get_transport(struct
> +vsock_sock *vsk);
> 
>  /**** UTILS ****/
> 
> diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index
> c3a14f853eb0..eaea159006c8 100644
> --- a/net/vmw_vsock/af_vsock.c
> +++ b/net/vmw_vsock/af_vsock.c
> @@ -2001,12 +2001,9 @@ void vsock_core_exit(void)  }
> EXPORT_SYMBOL_GPL(vsock_core_exit);
> 
> -const struct vsock_transport *vsock_core_get_transport(void)
> +const struct vsock_transport *vsock_core_get_transport(struct
> +vsock_sock *vsk)
>  {
> -	/* vsock_register_mutex not taken since only the transport uses this
> -	 * function and only while registered.
> -	 */
> -	return transport_single;
> +	return vsk->transport;
>  }
>  EXPORT_SYMBOL_GPL(vsock_core_get_transport);
> 
> diff --git a/net/vmw_vsock/virtio_transport_common.c
> b/net/vmw_vsock/virtio_transport_common.c
> index 9763394f7a61..37a1c7e7c7fe 100644
> --- a/net/vmw_vsock/virtio_transport_common.c
> +++ b/net/vmw_vsock/virtio_transport_common.c
> @@ -29,9 +29,10 @@
>  /* Threshold for detecting small packets to copy */  #define
> GOOD_COPY_LEN  128
> 
> -static const struct virtio_transport *virtio_transport_get_ops(void)
> +static const struct virtio_transport *
> +virtio_transport_get_ops(struct vsock_sock *vsk)
>  {
> -	const struct vsock_transport *t = vsock_core_get_transport();
> +	const struct vsock_transport *t = vsock_core_get_transport(vsk);
> 
>  	return container_of(t, struct virtio_transport, transport);  } @@ -
> 168,7 +169,7 @@ static int virtio_transport_send_pkt_info(struct vsock_sock
> *vsk,
>  	struct virtio_vsock_pkt *pkt;
>  	u32 pkt_len = info->pkt_len;
> 
> -	src_cid = virtio_transport_get_ops()->transport.get_local_cid();
> +	src_cid = virtio_transport_get_ops(vsk)->transport.get_local_cid();
>  	src_port = vsk->local_addr.svm_port;
>  	if (!info->remote_cid) {
>  		dst_cid	= vsk->remote_addr.svm_cid;
> @@ -201,7 +202,7 @@ static int virtio_transport_send_pkt_info(struct
> vsock_sock *vsk,
> 
>  	virtio_transport_inc_tx_pkt(vvs, pkt);
> 
> -	return virtio_transport_get_ops()->send_pkt(pkt);
> +	return virtio_transport_get_ops(vsk)->send_pkt(pkt);
>  }
> 
>  static bool virtio_transport_inc_rx_pkt(struct virtio_vsock_sock *vvs,
> --
> 2.21.0

Reviewed-by: Jorgen Hansen <jhansen@vmware.com>

  reply index

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-23  9:55 [PATCH net-next 00/14] vsock: add multi-transports support Stefano Garzarella
2019-10-23  9:55 ` [PATCH net-next 01/14] vsock/vmci: remove unused VSOCK_DEFAULT_CONNECT_TIMEOUT Stefano Garzarella
2019-10-30 14:54   ` Jorgen Hansen
2019-10-23  9:55 ` [PATCH net-next 02/14] vsock: remove vm_sockets_get_local_cid() Stefano Garzarella
2019-10-30 14:55   ` Jorgen Hansen
2019-10-23  9:55 ` [PATCH net-next 03/14] vsock: remove include/linux/vm_sockets.h file Stefano Garzarella
2019-10-30 14:57   ` Jorgen Hansen
2019-10-23  9:55 ` [PATCH net-next 04/14] vsock: add 'transport' member in the struct vsock_sock Stefano Garzarella
2019-10-30 14:57   ` Jorgen Hansen
2019-10-23  9:55 ` [PATCH net-next 05/14] vsock/virtio: add transport parameter to the virtio_transport_reset_no_sock() Stefano Garzarella
2019-10-23  9:55 ` [PATCH net-next 06/14] vsock: add 'struct vsock_sock *' param to vsock_core_get_transport() Stefano Garzarella
2019-10-30 15:01   ` Jorgen Hansen [this message]
2019-10-23  9:55 ` [PATCH net-next 07/14] vsock: handle buffer_size sockopts in the core Stefano Garzarella
2019-10-27  8:08   ` Stefan Hajnoczi
2019-10-30 15:08   ` Jorgen Hansen
2019-10-31  8:50     ` Stefano Garzarella
2019-10-23  9:55 ` [PATCH net-next 08/14] vsock: add vsock_create_connected() called by transports Stefano Garzarella
2019-10-27  8:12   ` Stefan Hajnoczi
2019-10-30 15:12   ` Jorgen Hansen
2019-10-23  9:55 ` [PATCH net-next 09/14] vsock: move vsock_insert_unbound() in the vsock_create() Stefano Garzarella
2019-10-30 15:12   ` Jorgen Hansen
2019-10-23  9:55 ` [PATCH net-next 10/14] hv_sock: set VMADDR_CID_HOST in the hvs_remote_addr_init() Stefano Garzarella
2019-10-23  9:55 ` [PATCH net-next 11/14] vsock: add multi-transports support Stefano Garzarella
2019-10-23 15:08   ` Stefano Garzarella
2019-10-30 15:40     ` Jorgen Hansen
2019-10-31  8:54       ` Stefano Garzarella
2019-11-11 13:53   ` Jorgen Hansen
2019-11-11 17:17     ` Stefano Garzarella
2019-11-12  9:59       ` Jorgen Hansen
2019-11-12 10:36         ` Stefano Garzarella
2019-11-13 14:30           ` Jorgen Hansen
2019-11-13 16:38             ` Stefano Garzarella
2019-10-23  9:55 ` [PATCH net-next 12/14] vsock/vmci: register vmci_transport only when VMCI guest/host are active Stefano Garzarella
2019-10-27  8:17   ` Stefan Hajnoczi
2019-10-29 16:35     ` Stefano Garzarella
2019-11-04 10:10   ` Stefano Garzarella
2019-11-11 16:27   ` Jorgen Hansen
2019-11-11 17:30     ` Stefano Garzarella
2019-11-12 10:03       ` Jorgen Hansen
2019-11-12 10:42         ` Stefano Garzarella
2019-10-23  9:55 ` [PATCH net-next 13/14] vsock: prevent transport modules unloading Stefano Garzarella
2019-11-11 16:36   ` Jorgen Hansen
2019-10-23  9:55 ` [PATCH net-next 14/14] vsock: fix bind() behaviour taking care of CID Stefano Garzarella
2019-11-11 16:53   ` Jorgen Hansen
2019-10-27  8:01 ` [PATCH net-next 00/14] vsock: add multi-transports support Stefan Hajnoczi
2019-10-29 16:27   ` Stefano Garzarella

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