On Sun, Jul 26, 2009 at 03:48:01PM +0300, Michael S. Tsirkin wrote:
> This makes delete vq the reverse of find vq.
> This is required to make it possible to retry find_vqs
> after a failure, otherwise the list gets corrupted.
>
> Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
> ---
> drivers/virtio/virtio_pci.c | 6 +++++-
> 1 files changed, 5 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
> index 7e21389..2eaf1fb 100644
> --- a/drivers/virtio/virtio_pci.c
> +++ b/drivers/virtio/virtio_pci.c
> @@ -464,7 +464,11 @@ static void vp_del_vq(struct virtqueue *vq)
> {
> struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev);
> struct virtio_pci_vq_info *info = vq->priv;
> - unsigned long size;
> + unsigned long flags, size;
> +
> + spin_lock_irqsave(&vp_dev->lock, flags);
> + list_del(&info->node);
> + spin_unlock_irqrestore(&vp_dev->lock, flags);
Grr, whitespace damage. Not sure how this got in, resending a corrected
patch. Sorry about the churn.
> iowrite16(info->queue_index, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_SEL);
>
> --
> 1.6.2.5
>
> --
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