static int xenbus_frontend_dev_resume(struct device *dev)
{
/*
* If xenstored is running in this domain, we cannot access the backend
* state at the moment, so we need to defer xenbus_dev_resume
*/
if (xen_store_domain_type == XS_LOCAL) {
struct xenbus_device *xdev = to_xenbus_device(dev);
schedule_work(&xdev->work);
return 0;
}
return xenbus_dev_resume(dev);
}
static int xenbus_frontend_dev_resume(struct device *dev)
{
/*
* If xenstored is running in this domain, we cannot access the backend
* state at the moment, so we need to defer xenbus_dev_resume
*/
if (xen_store_domain_type == XS_LOCAL) {
struct xenbus_device *xdev = to_xenbus_device(dev);
if (!xenbus_frontend_wq) {
pr_err("%s: no workqueue to process delayed resume\n",
xdev->nodename);
return -EFAULT;
}
INIT_WORK(&xdev->work, xenbus_frontend_delayed_resume);
queue_work(xenbus_frontend_wq, &xdev->work);
return 0;
}
return xenbus_dev_resume(dev);
}
static void xenbus_frontend_delayed_resume(struct work_struct *w)
{
struct xenbus_device *xdev = container_of(w, struct xenbus_device, work);
xenbus_dev_resume(&xdev->dev);
}