diff options
| author | Michael S. Tsirkin <mst@redhat.com> | 2009-07-26 15:48:01 +0300 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2009-07-30 16:03:44 +0930 |
| commit | f6c82507030d61e15928d5cad946d3eac1c4a384 (patch) | |
| tree | 5c0dd65a04424dbcf985a4104a8a244085e2f179 /drivers/virtio/virtio_pci.c | |
| parent | ff52c3fc7188855ede75d87b022271f0da309e5b (diff) | |
virtio: delete vq from list
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@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/virtio/virtio_pci.c')
| -rw-r--r-- | 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 ca40517ef9c2..a1cb1a1c6522 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); iowrite16(info->queue_index, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_SEL); |