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From: Kip Macy <kmacy@FreeBSD.org>
To: Perforce Change Reviews <perforce@freebsd.org>
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Subject: PERFORCE change 132282 for review
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http://perforce.freebsd.org/chv.cgi?CH=132282

Change 132282 by kmacy@pandemonium:kmacy:xen31 on 2008/01/02 04:10:23

	use HYPERVISOR_yield to wait for updates if init hasn't run yet

Affected files ...

.. //depot/projects/xen31/sys/xen/xenbus/xenbus_xs.c#8 edit

Differences ...

==== //depot/projects/xen31/sys/xen/xenbus/xenbus_xs.c#8 (text+ko) ====

@@ -137,13 +137,15 @@
 		return xsd_errors[i].errnum;
 }
 
+extern int scheduler_running;
+
 static void *read_reply(enum xsd_sockmsg_type *type, unsigned int *len)
 {
 		struct xs_stored_msg *msg;
 		char *body;
 		int i;
 			 
-		if (HYPERVISOR_shared_info->evtchn_mask[curcpu] & 0x2) {
+		if (scheduler_running == 0) {
 				/*
 				 * Give other domain time to run :-/
 				 */