On Fri, Jun 15, 2018 at 03:48:46PM +0200, Maxime Coquelin wrote:
> The log_cache_nb_elem was never incremented, resulting
> in all dirty pages to be missed during live migration.
>
> Fixes: c16915b87109 ("vhost: improve dirty pages logging performance")
> Cc: [email protected]
>
> Reported-by: Peng He <[email protected]>
> Cc: Ilya Maximets <[email protected]>
> Signed-off-by: Maxime Coquelin <[email protected]>
> ---
> lib/librte_vhost/vhost.h | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h
> index 528e01c8f..786a74f64 100644
> --- a/lib/librte_vhost/vhost.h
> +++ b/lib/librte_vhost/vhost.h
> @@ -429,6 +429,7 @@ vhost_log_cache_page(struct virtio_net *dev, struct
> vhost_virtqueue *vq,
>
> vq->log_cache[i].offset = offset;
> vq->log_cache[i].val = (1UL << bit_nr);
> + vq->log_cache_nb_elem++;
> }
>
> static __rte_always_inline void
> --
> 2.14.3
>
Reviewed-by: Tiwei Bie <[email protected]>
