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| /openbmc/linux/drivers/virtio/ |
| H A D | virtio_ring.c | diff 947f9fcf674f8f3f09e01dfb5d8e564650875878 Mon Aug 01 01:38:43 CDT 2022 Xuan Zhuo <xuanzhuo@linux.alibaba.com> virtio_ring: packed: introduce virtqueue_resize_packed()
virtio ring packed supports resize.
Only after the new vring is successfully allocated based on the new num,
we will release the old vring. In any case, an error is returned,
indicating that the vring still points to the old vring.
In the case of an error, re-initialize(by virtqueue_reinit_packed()) the
virtqueue to ensure that the vring can be used.
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20220801063902.129329-24-xuanzhuo@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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