[libvirt] [PATCH] Prefer xend setmaxmem interface

[Jim Fehlig <jfehlig novell com>]

As discussed in [1], prefer xend interface for setting max memory.

Regards,
Jim

[1] https://www.redhat.com/archives/libvir-list/2008-November/msg00339.html

Index: libvirt-0.4.6/src/xen_unified.c
===================================================================
--- libvirt-0.4.6.orig/src/xen_unified.c
+++ libvirt-0.4.6/src/xen_unified.c
@@ -799,8 +799,15 @@ xenUnifiedDomainSetMaxMemory (virDomainP
     GET_PRIVATE(dom->conn);
     int i;
 
+    /* Prefer xend for setting max memory */
+    if (priv->opened[XEN_UNIFIED_XEND_OFFSET]) {
+        if (xenDaemonDomainSetMaxMemory (dom, memory) == 0)
+            return 0;
+    }
+
     for (i = 0; i < XEN_UNIFIED_NR_DRIVERS; ++i)
-        if (priv->opened[i] &&
+        if (i != [XEN_UNIFIED_XEND_OFFSET &&
+            priv->opened[i] &&
             drivers[i]->domainSetMaxMemory &&
             drivers[i]->domainSetMaxMemory (dom, memory) == 0)
             return 0;