VRING_DESC_F_NEXT  192 kernel/virtio_disk.c     if(flag & VRING_DESC_F_NEXT)
VRING_DESC_F_NEXT  249 kernel/virtio_disk.c   disk.desc[idx[0]].flags = VRING_DESC_F_NEXT;
VRING_DESC_F_NEXT  258 kernel/virtio_disk.c   disk.desc[idx[1]].flags |= VRING_DESC_F_NEXT;