On 5/18/20 10:37 AM, David Hildenbrand wrote:
Checking against guest features is wrong. We allocated data structures based on host features. We can rely on "free_page_bh" as an indicator whether to un-do stuff instead.Fixes: c13c4153f76d ("virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_HINT") Cc: Wei Wang <[email protected]> Cc: Michael S. Tsirkin <[email protected]> Cc: Philippe Mathieu-Daudé <[email protected]> Cc: Alexander Duyck <[email protected]> Signed-off-by: David Hildenbrand <[email protected]> --- hw/virtio/virtio-balloon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c index dc3b1067ab..a4fcf2d777 100644 --- a/hw/virtio/virtio-balloon.c +++ b/hw/virtio/virtio-balloon.c @@ -818,7 +818,7 @@ static void virtio_balloon_device_unrealize(DeviceState *dev) VirtIODevice *vdev = VIRTIO_DEVICE(dev); VirtIOBalloon *s = VIRTIO_BALLOON(dev);- if (virtio_balloon_free_page_support(s)) {+ if (s->free_page_bh) { qemu_bh_delete(s->free_page_bh); virtio_balloon_free_page_stop(s); precopy_remove_notifier(&s->free_page_report_notify);
Reviewed-by: Philippe Mathieu-Daudé <[email protected]>
