[PATCH] PV driver compatibility patch

["Ky Srinivasan" <ksrinivasan@novell.com>]

[-- Attachment #1: Type: text/plain, Size: 121 bytes --]

This patch fixes compilation issues on 2.6.16 kernels.

Signed-off-by: K. Y. Srinivasan  <ksrinivasan@novell.com>



[-- Attachment #2: xenbus_compat.patch --]
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--- linux-2.6-xen-sparse/drivers/xen/xenbus/xenbus_probe.c	2007-05-14 13:45:04.000000000 -0400
+++ linux-2.6-xen-sparse-new/drivers/xen/xenbus/xenbus_probe.c	2007-05-15 10:55:31.000000000 -0400
@@ -67,8 +67,11 @@
 static unsigned long xen_store_mfn;
 
 extern struct mutex xenwatch_mutex;
-
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17)
+static struct notifier_block *xenstore_chain;
+#else
 static ATOMIC_NOTIFIER_HEAD(xenstore_chain);
+#endif
 
 static void wait_for_devices(struct xenbus_driver *xendrv);
 
@@ -796,7 +799,11 @@
 	if (xenstored_ready > 0)
 		ret = nb->notifier_call(nb, 0, NULL);
 	else
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17)
+		notifier_chain_register(&xenstore_chain, nb);
+#else
 		atomic_notifier_chain_register(&xenstore_chain, nb);
+#endif
 
 	return ret;
 }
@@ -804,7 +811,11 @@
 
 void unregister_xenstore_notifier(struct notifier_block *nb)
 {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17)
+	notifier_chain_unregister(&xenstore_chain, nb);
+#else
 	atomic_notifier_chain_unregister(&xenstore_chain, nb);
+#endif
 }
 EXPORT_SYMBOL_GPL(unregister_xenstore_notifier);
 
@@ -819,7 +830,11 @@
 	xenbus_backend_probe_and_watch();
 
 	/* Notify others that xenstore is up */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17)
+	notifier_call_chain(&xenstore_chain, 0, NULL);
+#else
 	atomic_notifier_call_chain(&xenstore_chain, 0, NULL);
+#endif
 }
 
 

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