On Thu, Dec 8, 2016 at 5:24 PM, Stefan Hajnoczi <stefanha@xxxxxxxxx> wrote:
> On Wed, Dec 07, 2016 at 11:14:12PM +0800, Peng Tao wrote:
>> Otherwise we'll leave the packets queued until releasing vsock device.
>> E.g., if guest is slow to start up, resulting ETIMEDOUT on connect, guest
>> will get the connect requests from failed host sockets.
>>
>> Reviewed-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
>> Signed-off-by: Peng Tao <bergwolf@xxxxxxxxx>
>> ---
>> include/linux/virtio_vsock.h | 7 +++++++
>> net/vmw_vsock/af_vsock.c | 7 +++++++
>> net/vmw_vsock/virtio_transport_common.c | 7 -------
>> 3 files changed, 14 insertions(+), 7 deletions(-)
>>
>> diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h
>> index b92e88d..ff6850a 100644
>> --- a/include/linux/virtio_vsock.h
>> +++ b/include/linux/virtio_vsock.h
>> @@ -156,4 +156,11 @@ void virtio_transport_inc_tx_pkt(struct virtio_vsock_sock *vvs, struct virtio_vs
>> u32 virtio_transport_get_credit(struct virtio_vsock_sock *vvs, u32 wanted);
>> void virtio_transport_put_credit(struct virtio_vsock_sock *vvs, u32 credit);
>>
>> +static inline const struct virtio_transport *virtio_transport_get_ops(void)
>> +{
>> + const struct vsock_transport *t = vsock_core_get_transport();
>> +
>> + return container_of(t, struct virtio_transport, transport);
>> +}
>> +
>> #endif /* _LINUX_VIRTIO_VSOCK_H */
>> diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
>> index 8a398b3..ebb50d6 100644
>> --- a/net/vmw_vsock/af_vsock.c
>> +++ b/net/vmw_vsock/af_vsock.c
>> @@ -104,6 +104,7 @@
>> #include <linux/unistd.h>
>> #include <linux/wait.h>
>> #include <linux/workqueue.h>
>> +#include <linux/virtio_vsock.h>
>> #include <net/sock.h>
>> #include <net/af_vsock.h>
>>
>> @@ -1105,6 +1106,7 @@ static void vsock_connect_timeout(struct work_struct *work)
>> {
>> struct sock *sk;
>> struct vsock_sock *vsk;
>> + int cancel = 0;
>>
>> vsk = container_of(work, struct vsock_sock, dwork.work);
>> sk = sk_vsock(vsk);
>> @@ -1115,8 +1117,11 @@ static void vsock_connect_timeout(struct work_struct *work)
>> sk->sk_state = SS_UNCONNECTED;
>> sk->sk_err = ETIMEDOUT;
>> sk->sk_error_report(sk);
>> + cancel = 1;
>> }
>> release_sock(sk);
>> + if (cancel)
>> + virtio_transport_get_ops()->cancel_pkt(vsk);
>
> This doesn't work with the VMCI transport. Remember af_vsock.c is
> common code shared by all transports.
>
> You need to add a struct vsock_transport->cancel_pkt() callback instead
> os a struct virtio_transport->cancel_pkt() callback. And you need to
> handle the case where cancel_pkt == NULL if you don't implement it for
> VMCI.
>
I see. Thanks for reviewing! I'll fix it and resend later.
Cheers,
Tao
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
