From: Konstantin Neumoin <kneumoin@xxxxxxxxxxxxx>
Patch
Commit 3d2a3774c1b046f548ebea0391a602fd5685a307
Author: Michael S. Tsirkin <mst@xxxxxxxxxx>
Date: Tue Mar 10 11:55:08 2015 +1030
virtio-balloon: do not call blocking ops when !TASK_RUNNING
has added a regression. Original code with wait_event_interruptible
checked the condition before start waiting and started balloon operations
if necessary.
Right now balloon is not inflated if ballon target is set before the
driver is loaded.
Signed-off-by: Konstantin Neumoin <kneumoin@xxxxxxxxxxxxx>
Signed-off-by: Denis V. Lunev <den@xxxxxxxxxx>
CC: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
---
drivers/virtio/virtio_balloon.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 4e7003d..0a6c10f 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -577,6 +577,10 @@ static int virtballoon_probe(struct virtio_device *vdev)
virtio_device_ready(vdev);
+ if (towards_target(vb))
+ virtballoon_changed(vdev);
+ update_balloon_size(vb);
+
return 0;
out_del_vqs:
--
2.7.4
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