Merge to Fedora kernel-2.6.18-1.2224_FC5 patched with stable patch-2.6.18.1-vs2.0...

[linux-2.6.git] / drivers / xen / xenbus / xenbus_backend_client.c

diff --git a/drivers/xen/xenbus/xenbus_backend_client.c b/drivers/xen/xenbus/xenbus_backend_client.c
index b99991c..cd8ba02 100644 (file)
--- a/drivers/xen/xenbus/xenbus_backend_client.c
+++ b/drivers/xen/xenbus/xenbus_backend_client.c
@@ -132,4 +132,16 @@ int xenbus_unmap_ring(struct xenbus_device *dev,
 }
 EXPORT_SYMBOL_GPL(xenbus_unmap_ring);
 
+int xenbus_dev_is_online(struct xenbus_device *dev)
+{
+       int rc, val;
+
+       rc = xenbus_scanf(XBT_NIL, dev->nodename, "online", "%d", &val);
+       if (rc != 1)
+               val = 0; /* no online node present */
+
+       return val;
+}
+EXPORT_SYMBOL_GPL(xenbus_dev_is_online);
+
 MODULE_LICENSE("Dual BSD/GPL");