From e724452ec0bca07c2415b563f5c9f9bb2035a3d4 Mon Sep 17 00:00:00 2001
From: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Date: Wed, 27 Jun 2018 13:41:52 +0200
Subject: [PATCH] virtio: call backend-specific queue cleanup on vdev stop

This was omitted in the original implementation and the
`del_queue` callback wasn't called anywhere. For virtio-user
we open some eventfds on queue creation and until now they
were never being closed.

Change-Id: Iee1ced1e17a59d5cb13449538c115678a1c1a328
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/416999
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
---
 lib/virtio/virtio.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/virtio/virtio.c b/lib/virtio/virtio.c
index 8e3bfbd7b..2f5abb1a5 100644
--- a/lib/virtio/virtio.c
+++ b/lib/virtio/virtio.c
@@ -211,6 +211,7 @@ virtio_free_queues(struct virtio_dev *dev)
 			continue;
 		}
 
+		virtio_dev_backend_ops(dev)->del_queue(dev, vq);
 		spdk_dma_free(vq->vq_ring_virt_mem);
 
 		rte_free(vq);