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 <[email protected]>
Signed-off-by: Stefano Garzarella <[email protected]>
---
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
> From: Stefano Garzarella [mailto:[email protected]]
> 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 <[email protected]>
> Signed-off-by: Stefano Garzarella <[email protected]>
> ---
> 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 <[email protected]>