From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] VSOCK: set POLLOUT | POLLWRNORM for TCP_CLOSING
Date: Fri, 26 Jan 2018 11:17:01 -0500 (EST)
Message-ID: <20180126.111701.1618019241717200752.davem@davemloft.net>
References: <20180126114825.15817-1-stefanha@redhat.com>
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Cc: netdev@vger.kernel.org, decui@microsoft.com, jhansen@vmware.com
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From: Stefan Hajnoczi <stefanha@redhat.com>
Date: Fri, 26 Jan 2018 11:48:25 +0000

> select(2) with wfds but no rfds must return when the socket is shut down
> by the peer.  This way userspace notices socket activity and gets -EPIPE
> from the next write(2).
> 
> Currently select(2) does not return for virtio-vsock when a SEND+RCV
> shutdown packet is received.  This is because vsock_poll() only sets
> POLLOUT | POLLWRNORM for TCP_CLOSE, not the TCP_CLOSING state that the
> socket is in when the shutdown is received.
> 
> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

Applied and queued up for -stable, thank you.