virtio_pci: delete vqs indirectly
VQ deletion is mostly version-specific, add another level of indirection
to split the version-independent code out.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
index 7b82eb5..133978c 100644
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -81,6 +81,8 @@
/* Whether we have vector per vq */
bool per_vq_vectors;
+
+ void (*del_vq)(struct virtio_pci_vq_info *info);
};
/* Constants for MSI-X */
@@ -468,15 +470,11 @@
return ERR_PTR(err);
}
-static void vp_del_vq(struct virtqueue *vq)
+static void del_vq(struct virtio_pci_vq_info *info)
{
+ struct virtqueue *vq = info->vq;
struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev);
- struct virtio_pci_vq_info *info = vp_dev->vqs[vq->index];
- unsigned long flags, size;
-
- spin_lock_irqsave(&vp_dev->lock, flags);
- list_del(&info->node);
- spin_unlock_irqrestore(&vp_dev->lock, flags);
+ unsigned long size;
iowrite16(vq->index, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_SEL);
@@ -494,6 +492,19 @@
size = PAGE_ALIGN(vring_size(info->num, VIRTIO_PCI_VRING_ALIGN));
free_pages_exact(info->queue, size);
+}
+
+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 = vp_dev->vqs[vq->index];
+ unsigned long flags;
+
+ spin_lock_irqsave(&vp_dev->lock, flags);
+ list_del(&info->node);
+ spin_unlock_irqrestore(&vp_dev->lock, flags);
+
+ vp_dev->del_vq(info);
kfree(info);
}
@@ -737,6 +748,8 @@
vp_dev->vdev.id.vendor = pci_dev->subsystem_vendor;
vp_dev->vdev.id.device = pci_dev->subsystem_device;
+ vp_dev->del_vq = del_vq;
+
/* finally register the virtio device */
err = register_virtio_device(&vp_dev->vdev);
if (err)