linux-kernel - Re: [PATCH v3] virtio_blk: allow re-reading config space at runtime

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Message-Id: <201102041310.00122.rusty@rustcorp.com.au>
Date:	Fri, 4 Feb 2011 13:09:59 +1030
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Christoph Hellwig <hch@....de>
Cc:	"Michael S. Tsirkin" <mst@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] virtio_blk: allow re-reading config space at runtime

On Wed, 2 Feb 2011 07:13:48 am Christoph Hellwig wrote:
> Wire up the virtio_driver config_changed method to get notified about
> config changes raised by the host.  For now we just re-read the device
> size to support online resizing of devices, but once we add more
> attributes that might be changeable they could be added as well.
> 
> Note that the config_changed method is called from irq context, so
> we'll have to use the workqueue infrastructure to provide us a proper
> user context for our changes.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>

Thanks, applied!

Cheers,
Rusty.
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