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virtio_ring: extract the logic of freeing vring 

Introduce vring_free() to free the vring of vq.

Subsequent patches will use vring_free() alone.

Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20220801063902.129329-5-xuanzhuo@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Xuan Zhuo 2022-08-01 14:38:24 +08:00 committed by Michael S. Tsirkin
parent a62eecb3a9
commit 3ea19e3265
1 changed files with 13 additions and 5 deletions
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18
drivers/virtio/virtio_ring.c
View File

@ -2316,14 +2316,10 @@ struct virtqueue *vring_new_virtqueue(unsigned int index,
}
EXPORT_SYMBOL_GPL(vring_new_virtqueue);
void vring_del_virtqueue(struct virtqueue *_vq)
static void vring_free(struct virtqueue *_vq)
{
struct vring_virtqueue *vq = to_vvq(_vq);
spin_lock(&vq->vq.vdev->vqs_list_lock);
list_del(&_vq->list);
spin_unlock(&vq->vq.vdev->vqs_list_lock);
if (vq->we_own_ring) {
if (vq->packed_ring) {
vring_free_queue(vq->vq.vdev,
@ -2354,6 +2350,18 @@ void vring_del_virtqueue(struct virtqueue *_vq)
kfree(vq->split.desc_state);
kfree(vq->split.desc_extra);
}
}
void vring_del_virtqueue(struct virtqueue *_vq)
{
struct vring_virtqueue *vq = to_vvq(_vq);
spin_lock(&vq->vq.vdev->vqs_list_lock);
list_del(&_vq->list);
spin_unlock(&vq->vq.vdev->vqs_list_lock);
vring_free(_vq);
kfree(vq);
}
EXPORT_SYMBOL_GPL(vring_del_virtqueue);