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authorKonstantin Neumoin <kneumoin@virtuozzo.com>2016-09-29 13:17:12 +0300
committerMichael S. Tsirkin <mst@redhat.com>2016-10-31 00:21:41 +0200
commit8424af5336b34043a705d66bdf2c1428048ef085 (patch)
tree3493a2aa20518a523879e466a939232a2dfe08a8
parent0ea1e4a6d9b62cf29e210d2b4ba9fd43917522e3 (diff)
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virtio: update balloon size in balloon "probe"
The following commit 'fad7b7b27b6a (virtio_balloon: Use a workqueue instead of "vballoon" kthread)' has added a regression. Original code with kthread starts the thread inside probe and checks the necessity to update balloon inside the thread immediately. Nowadays the code behaves differently. Work is queued only on the first command from the host after the negotiation. Thus there is a window especially at the guest startup or the module reloading when the balloon size is not updated until the notification from the host. This patch adds balloon size check at the end of the probe to match original behaviour. Signed-off-by: Konstantin Neumoin <kneumoin@virtuozzo.com> Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-rw-r--r--drivers/virtio/virtio_balloon.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 4e7003db12c4..181793f07852 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -577,6 +577,8 @@ static int virtballoon_probe(struct virtio_device *vdev)
virtio_device_ready(vdev);
+ if (towards_target(vb))
+ virtballoon_changed(vdev);
return 0;
out_del_vqs: