[PATCH v13 13/42] virtio_ring: split: extract the logic of attach vring
From: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Date: 2022-07-26 07:23:33
Also in:
bpf, kvm, linux-remoteproc, linux-s390, linux-um, netdev, platform-driver-x86
Subsystem:
the rest, virtio core · Maintainers:
Linus Torvalds, "Michael S. Tsirkin", Jason Wang
Separate the logic of attach vring, subsequent patches will call it separately. virtqueue_vring_init_split() completes the initialization of other variables of vring split. We can directly use vq->split = *vring_split to complete attach. Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> Acked-by: Jason Wang <jasowang@redhat.com> --- drivers/virtio/virtio_ring.c | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-)
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index ac973887484f..2067818f7047 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c@@ -967,6 +967,12 @@ static void virtqueue_vring_init_split(struct vring_virtqueue_split *vring_split } } +static void virtqueue_vring_attach_split(struct vring_virtqueue *vq, + struct vring_virtqueue_split *vring_split) +{ + vq->split = *vring_split; +} + static int vring_alloc_state_extra_split(struct vring_virtqueue_split *vring_split) { struct vring_desc_state_split *state;
@@ -1077,8 +1083,6 @@ static struct virtqueue *vring_create_virtqueue_split( return NULL; } - to_vvq(vq)->split.queue_dma_addr = vring_split.queue_dma_addr; - to_vvq(vq)->split.queue_size_in_bytes = vring_split.queue_size_in_bytes; to_vvq(vq)->we_own_ring = true; return vq;
@@ -2314,23 +2318,16 @@ static struct virtqueue *__vring_new_virtqueue(unsigned int index, vq->indirect = virtio_has_feature(vdev, VIRTIO_RING_F_INDIRECT_DESC) && !context; - vq->split.queue_dma_addr = 0; - vq->split.queue_size_in_bytes = 0; - - vq->split.vring = vring_split->vring; - err = vring_alloc_state_extra_split(vring_split); if (err) { kfree(vq); return NULL; } - vq->split.desc_state = vring_split->desc_state; - vq->split.desc_extra = vring_split->desc_extra; - virtqueue_vring_init_split(vring_split, vq); virtqueue_init(vq, vring_split->vring.num); + virtqueue_vring_attach_split(vq, vring_split); spin_lock(&vdev->vqs_list_lock); list_add_tail(&vq->vq.list, &vdev->vqs);
--
2.31.0
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization