X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Fpage_alloc.c;h=07dfd89992fa6d0ee90cf0ca6646a43d7dd926e2;hb=7ea1530ab3fdfa85441061909cc8040e84776fd4;hp=1a8c59571cb7303515c7b616f9572c4706ccebb6;hpb=b21010ed6498391c0f359f2a89c907533fe07fec;p=linux-2.6

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 1a8c59571c..07dfd89992 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -47,13 +47,21 @@
 #include "internal.h"
 
 /*
- * MCD - HACK: Find somewhere to initialize this EARLY, or make this
- * initializer cleaner
+ * Array of node states.
  */
-nodemask_t node_online_map __read_mostly = { { [0] = 1UL } };
-EXPORT_SYMBOL(node_online_map);
-nodemask_t node_possible_map __read_mostly = NODE_MASK_ALL;
-EXPORT_SYMBOL(node_possible_map);
+nodemask_t node_states[NR_NODE_STATES] __read_mostly = {
+	[N_POSSIBLE] = NODE_MASK_ALL,
+	[N_ONLINE] = { { [0] = 1UL } },
+#ifndef CONFIG_NUMA
+	[N_NORMAL_MEMORY] = { { [0] = 1UL } },
+#ifdef CONFIG_HIGHMEM
+	[N_HIGH_MEMORY] = { { [0] = 1UL } },
+#endif
+	[N_CPU] = { { [0] = 1UL } },
+#endif	/* NUMA */
+};
+EXPORT_SYMBOL(node_states);
+
 unsigned long totalram_pages __read_mostly;
 unsigned long totalreserve_pages __read_mostly;
 long nr_swap_pages;
@@ -2072,14 +2080,35 @@ static void build_zonelist_cache(pg_data_t *pgdat)
 
 #endif	/* CONFIG_NUMA */
 
+/* Any regular memory on that node ? */
+static void check_for_regular_memory(pg_data_t *pgdat)
+{
+#ifdef CONFIG_HIGHMEM
+	enum zone_type zone_type;
+
+	for (zone_type = 0; zone_type <= ZONE_NORMAL; zone_type++) {
+		struct zone *zone = &pgdat->node_zones[zone_type];
+		if (zone->present_pages)
+			node_set_state(zone_to_nid(zone), N_NORMAL_MEMORY);
+	}
+#endif
+}
+
 /* return values int ....just for stop_machine_run() */
 static int __build_all_zonelists(void *dummy)
 {
 	int nid;
 
 	for_each_online_node(nid) {
-		build_zonelists(NODE_DATA(nid));
-		build_zonelist_cache(NODE_DATA(nid));
+		pg_data_t *pgdat = NODE_DATA(nid);
+
+		build_zonelists(pgdat);
+		build_zonelist_cache(pgdat);
+
+		/* Any memory on that node */
+		if (pgdat->node_present_pages)
+			node_set_state(nid, N_HIGH_MEMORY);
+		check_for_regular_memory(pgdat);
 	}
 	return 0;
 }
@@ -2444,7 +2473,7 @@ int zone_wait_table_init(struct zone *zone, unsigned long zone_size_pages)
 		 * To use this new node's memory, further consideration will be
 		 * necessary.
 		 */
-		zone->wait_table = (wait_queue_head_t *)vmalloc(alloc_size);
+		zone->wait_table = vmalloc(alloc_size);
 	}
 	if (!zone->wait_table)
 		return -ENOMEM;