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virtio: add names to virtqueue struct, mapping from devices to queues.

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Add a linked list of all virtqueues for a virtio device: this helps for
debugging and is also needed for upcoming interface change.

Also, add a "name" field for clearer debug messages.

Signed-off-by: Rusty Russell <[email protected]>
This commit is contained in:
Rusty Russell 2009-06-12 22:16:35 -06:00
commit 9499f5e7ed
14 changed files with 56 additions and 31 deletions
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7
drivers/s390/kvm/kvm_virtio.c
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@ -173,8 +173,9 @@ static void kvm_notify(struct virtqueue *vq)
* this device and sets it up.
*/
static struct virtqueue *kvm_find_vq(struct virtio_device *vdev,
unsigned index,
void (*callback)(struct virtqueue *vq))
unsigned index,
void (*callback)(struct virtqueue *vq),
const char *name)
{
struct kvm_device *kdev = to_kvmdev(vdev);
struct kvm_vqconfig *config;
@ -194,7 +195,7 @@ static struct virtqueue *kvm_find_vq(struct virtio_device *vdev,
vq = vring_new_virtqueue(config->num, KVM_S390_VIRTIO_RING_ALIGN,
vdev, (void *) config->address,
kvm_notify, callback);
kvm_notify, callback, name);
if (!vq) {
err = -ENOMEM;
goto unmap;