提交 d7ead0c3 编写于 作者: A Aurelien Chartier 提交者: Konrad Rzeszutek Wilk

xenbus: frontend resume cleanup

Only create the delayed resume workqueue if we are running in the same domain
as xenstored and issue a warning if the workqueue creation fails.

Move the work initialization to the device probe so it is done only once.
Signed-off-by: NAurelien Chartier <aurelien.chartier@citrix.com>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: NDavid Vrabel <david.vrabel@citrix.com>
上级 0b0c002c
......@@ -115,7 +115,6 @@ static int xenbus_frontend_dev_resume(struct device *dev)
return -EFAULT;
}
INIT_WORK(&xdev->work, xenbus_frontend_delayed_resume);
queue_work(xenbus_frontend_wq, &xdev->work);
return 0;
......@@ -124,6 +123,16 @@ static int xenbus_frontend_dev_resume(struct device *dev)
return xenbus_dev_resume(dev);
}
static int xenbus_frontend_dev_probe(struct device *dev)
{
if (xen_store_domain_type == XS_LOCAL) {
struct xenbus_device *xdev = to_xenbus_device(dev);
INIT_WORK(&xdev->work, xenbus_frontend_delayed_resume);
}
return xenbus_dev_probe(dev);
}
static const struct dev_pm_ops xenbus_pm_ops = {
.suspend = xenbus_dev_suspend,
.resume = xenbus_frontend_dev_resume,
......@@ -142,7 +151,7 @@ static struct xen_bus_type xenbus_frontend = {
.name = "xen",
.match = xenbus_match,
.uevent = xenbus_uevent_frontend,
.probe = xenbus_dev_probe,
.probe = xenbus_frontend_dev_probe,
.remove = xenbus_dev_remove,
.shutdown = xenbus_dev_shutdown,
.dev_attrs = xenbus_dev_attrs,
......@@ -474,7 +483,11 @@ static int __init xenbus_probe_frontend_init(void)
register_xenstore_notifier(&xenstore_notifier);
if (xen_store_domain_type == XS_LOCAL) {
xenbus_frontend_wq = create_workqueue("xenbus_frontend");
if (!xenbus_frontend_wq)
pr_warn("create xenbus frontend workqueue failed, S3 resume is likely to fail\n");
}
return 0;
}
......
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