mm: remove mm_init compilation dependency on CONFIG_DEBUG_MEMORY_INIT

[linux-2.6] / mm / mm_init.c

diff --git a/mm/mm_init.c b/mm/mm_init.c
index e16990d629e66849a1d2780325356fd4dd1d45da..eaf0d3b47099a063da4106e2f2c55fcd5a90e776 100644 (file)
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -9,8 +9,54 @@
 #include <linux/init.h>
 #include "internal.h"
 
+#ifdef CONFIG_DEBUG_MEMORY_INIT
 int __meminitdata mminit_loglevel;
 
+/* The zonelists are simply reported, validation is manual. */
+void mminit_verify_zonelist(void)
+{
+       int nid;
+
+       if (mminit_loglevel < MMINIT_VERIFY)
+               return;
+
+       for_each_online_node(nid) {
+               pg_data_t *pgdat = NODE_DATA(nid);
+               struct zone *zone;
+               struct zoneref *z;
+               struct zonelist *zonelist;
+               int i, listid, zoneid;
+
+               BUG_ON(MAX_ZONELISTS > 2);
+               for (i = 0; i < MAX_ZONELISTS * MAX_NR_ZONES; i++) {
+
+                       /* Identify the zone and nodelist */
+                       zoneid = i % MAX_NR_ZONES;
+                       listid = i / MAX_NR_ZONES;
+                       zonelist = &pgdat->node_zonelists[listid];
+                       zone = &pgdat->node_zones[zoneid];
+                       if (!populated_zone(zone))
+                               continue;
+
+                       /* Print information about the zonelist */
+                       printk(KERN_DEBUG "mminit::zonelist %s %d:%s = ",
+                               listid > 0 ? "thisnode" : "general", nid,
+                               zone->name);
+
+                       /* Iterate the zonelist */
+                       for_each_zone_zonelist(zone, z, zonelist, zoneid) {
+#ifdef CONFIG_NUMA
+                               printk(KERN_CONT "%d:%s ",
+                                       zone->node, zone->name);
+#else
+                               printk(KERN_CONT "0:%s ", zone->name);
+#endif /* CONFIG_NUMA */
+                       }
+                       printk(KERN_CONT "\n");
+               }
+       }
+}
+
 void __init mminit_verify_pageflags_layout(void)
 {
        int shift, width;
@@ -87,3 +133,4 @@ static __init int set_mminit_loglevel(char *str)
        return 0;
 }
 early_param("mminit_loglevel", set_mminit_loglevel);
+#endif /* CONFIG_DEBUG_MEMORY_INIT */