提交 d7e53922 编写于 作者: L Linus Torvalds

Merge tag 'for-linus' of git://github.com/rustyrussell/linux

Merge virtio pull request from Rusty Russell.

* tag 'for-linus' of git://github.com/rustyrussell/linux:
  virtio: balloon: leak / fill balloon across S4
......@@ -367,29 +367,45 @@ static void __devexit virtballoon_remove(struct virtio_device *vdev)
#ifdef CONFIG_PM
static int virtballoon_freeze(struct virtio_device *vdev)
{
struct virtio_balloon *vb = vdev->priv;
/*
* The kthread is already frozen by the PM core before this
* function is called.
*/
while (vb->num_pages)
leak_balloon(vb, vb->num_pages);
update_balloon_size(vb);
/* Ensure we don't get any more requests from the host */
vdev->config->reset(vdev);
vdev->config->del_vqs(vdev);
return 0;
}
static int restore_common(struct virtio_device *vdev)
{
struct virtio_balloon *vb = vdev->priv;
int ret;
ret = init_vqs(vdev->priv);
if (ret)
return ret;
fill_balloon(vb, towards_target(vb));
update_balloon_size(vb);
return 0;
}
static int virtballoon_thaw(struct virtio_device *vdev)
{
return init_vqs(vdev->priv);
return restore_common(vdev);
}
static int virtballoon_restore(struct virtio_device *vdev)
{
struct virtio_balloon *vb = vdev->priv;
struct page *page, *page2;
/* We're starting from a clean slate */
vb->num_pages = 0;
/*
* If a request wasn't complete at the time of freezing, this
......@@ -397,12 +413,7 @@ static int virtballoon_restore(struct virtio_device *vdev)
*/
vb->need_stats_update = 0;
/* We don't have these pages in the balloon anymore! */
list_for_each_entry_safe(page, page2, &vb->pages, lru) {
list_del(&page->lru);
totalram_pages++;
}
return init_vqs(vdev->priv);
return restore_common(vdev);
}
#endif
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册