tree 3493a2aa20518a523879e466a939232a2dfe08a8
parent 0ea1e4a6d9b62cf29e210d2b4ba9fd43917522e3
author Konstantin Neumoin <kneumoin@virtuozzo.com> 1475144232 +0300
committer Michael S. Tsirkin <mst@redhat.com> 1477866101 +0200

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>