From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rusty Russell <rusty@rustcorp.com.au>
Subject: Re: [PATCH 1/1] virtio_ccw: introduce device_lost in virtio_ccw_device
Date: Mon, 28 Apr 2014 11:24:30 +0930
Message-ID: <87fvkyte09.fsf@rustcorp.com.au>
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To: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Cc: borntraeger@de.ibm.com, virtualization@lists.linux-foundation.org
List-Id: virtualization@lists.linuxfoundation.org

Heinz Graalfs <graalfs@linux.vnet.ibm.com> writes:
> When a device is lost, the common I/O layer calls the notification
> handler with CIO_GONE: In that event, flag device_lost as true.
>
> In case the device had been flagged as lost when the remove/offline callbacks
> are called, call the new virtio_break_device() function prior to invoking
> device_unregister(). This avoids hangs of I/O triggered via the device
> unregistration callbacks.
>
> Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>

Thanks!

Applied,
Rusty.