tree 5e48ab84e14e4380b8409e646f086143c1769f5d
parent b834226b04d6fb51178a64e98872856986c71474
author Michael S. Tsirkin <mst@redhat.com> 1311158491 +0300
committer Michael S. Tsirkin <mst@redhat.com> 1311233011 +0300

vhost-net: update used ring on backend change

On backend change, we flushed out outstanding skbs
but forgot to update the used ring, so that
done entries were left in the ubuf_info ring.
As a result we lose heads or complete incorrect ones,
crashing the guest or leaking memory.
Fix by updating the used ring.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>