used_offset      1910 drivers/vhost/vhost.c static int log_used(struct vhost_virtqueue *vq, u64 used_offset, u64 len)
used_offset      1916 drivers/vhost/vhost.c 		return log_write(vq->log_base, vq->log_addr + used_offset, len);
used_offset      1918 drivers/vhost/vhost.c 	ret = translate_desc(vq, (uintptr_t)vq->used + used_offset,