Re: [PATCH] VSOCK: call sk->sk_data_ready() on accept()

From: David Miller
Date: Wed Nov 04 2015 - 22:03:39 EST


From: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
Date: Wed, 4 Nov 2015 12:58:42 +0000

> When a listen socket enqueues a connection for userspace to accept(),
> the sk->sk_data_ready() callback should be invoked. In-kernel socket
> users rely on this callback to detect when incoming connections are
> available.
>
> Currently the sk->sk_state_change() callback is invoked by
> vmci_transport.c. This happens to work for userspace applications since
> sk->sk_state_change = sock_def_wakeup() and sk->sk_data_ready =
> sock_def_readable() both wake up the accept() waiter. In-kernel socket
> users, on the other hand, fail to detect incoming connections.
>
> Signed-off-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>

Applied.
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