tree ec14f3e0461544014c605b01adf45989cb70fc77
parent fa500928ad9da6dd570918e3dfca13c029af07a8
author Jason Wang <jasowang@redhat.com> 1443158488 +0800
committer Michael S. Tsirkin <mst@redhat.com> 1443705412 +0300

virtio: introduce virtqueue_unmap_sg()

Factor out sg unmapping logic. This will be reused by the patch that
can discard descriptor.

Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Andrew James <andrew.james@hpe.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>