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From: Rusty Russell <rusty@rustcorp.com.au>
To: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Cc: borntraeger@de.ibm.com, virtualization@lists.linux-foundation.org
Subject: Re: [PATCH 1/1] virtio_ccw: introduce device_lost in virtio_ccw_device
Date: Mon, 28 Apr 2014 11:24:30 +0930	[thread overview]
Message-ID: <87fvkyte09.fsf@rustcorp.com.au> (raw)
In-Reply-To: <1398429327-31391-2-git-send-email-graalfs@linux.vnet.ibm.com>

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.

      reply	other threads:[~2014-04-28  1:54 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-25 12:35 [PATCH 0/1] virtio_ccw: exploit virtio_break_device() Heinz Graalfs
2014-04-25 12:35 ` [PATCH 1/1] virtio_ccw: introduce device_lost in virtio_ccw_device Heinz Graalfs
2014-04-28  1:54   ` Rusty Russell [this message]

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