Make xenstore notifier blocking rather than atomic.

Signed-off-by: Jan Beulich <jbeulich@novell.com>

diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
index 4eab8b6f59ef6c12d5c3e71ed7f99927d4644e13..3c7139aca66bec50be4818208c631c0a46ac5582 100644 (file)
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -69,7 +69,7 @@ static unsigned long xen_store_mfn;
 
 extern struct mutex xenwatch_mutex;
 
-static ATOMIC_NOTIFIER_HEAD(xenstore_chain);
+static BLOCKING_NOTIFIER_HEAD(xenstore_chain);
 
 static void wait_for_devices(struct xenbus_driver *xendrv);
 
@@ -825,7 +825,7 @@ int register_xenstore_notifier(struct notifier_block *nb)
        if (xenstored_ready > 0)
                ret = nb->notifier_call(nb, 0, NULL);
        else
-               atomic_notifier_chain_register(&xenstore_chain, nb);
+               blocking_notifier_chain_register(&xenstore_chain, nb);
 
        return ret;
 }
@@ -833,7 +833,7 @@ EXPORT_SYMBOL_GPL(register_xenstore_notifier);
 
 void unregister_xenstore_notifier(struct notifier_block *nb)
 {
-       atomic_notifier_chain_unregister(&xenstore_chain, nb);
+       blocking_notifier_chain_unregister(&xenstore_chain, nb);
 }
 EXPORT_SYMBOL_GPL(unregister_xenstore_notifier);
 
@@ -848,7 +848,7 @@ void xenbus_probe(void *unused)
        xenbus_backend_probe_and_watch();
 
        /* Notify others that xenstore is up */
-       atomic_notifier_call_chain(&xenstore_chain, 0, NULL);
+       blocking_notifier_call_chain(&xenstore_chain, 0, NULL);
 }