X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Fmemory_hotplug.c;h=9c12ae5e3695af07d44b9d60fe3782fdb16903a5;hb=ee3c72a14bfecdf783738032ff3c73ef6412f5b3;hp=7666dbd328df7595943efc6f5a7f54d35e29303d;hpb=53947027ad90542ddb2bb746e3175827c270610a;p=linux-2.6

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 7666dbd328..9c12ae5e36 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -26,6 +26,36 @@
 
 #include <asm/tlbflush.h>
 
+/* add this memory to iomem resource */
+static struct resource *register_memory_resource(u64 start, u64 size)
+{
+	struct resource *res;
+	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
+	BUG_ON(!res);
+
+	res->name = "System RAM";
+	res->start = start;
+	res->end = start + size - 1;
+	res->flags = IORESOURCE_MEM;
+	if (request_resource(&iomem_resource, res) < 0) {
+		printk("System RAM resource %llx - %llx cannot be added\n",
+		(unsigned long long)res->start, (unsigned long long)res->end);
+		kfree(res);
+		res = NULL;
+	}
+	return res;
+}
+
+static void release_memory_resource(struct resource *res)
+{
+	if (!res)
+		return;
+	release_resource(res);
+	kfree(res);
+	return;
+}
+
+
 #ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
 static int __add_zone(struct zone *zone, unsigned long phys_start_pfn)
 {
@@ -35,14 +65,15 @@ static int __add_zone(struct zone *zone, unsigned long phys_start_pfn)
 	int zone_type;
 
 	zone_type = zone - pgdat->node_zones;
-	if (!populated_zone(zone)) {
+	if (!zone->wait_table) {
 		int ret = 0;
-		ret = init_currently_empty_zone(zone, phys_start_pfn, nr_pages);
+		ret = init_currently_empty_zone(zone, phys_start_pfn,
+						nr_pages, MEMMAP_HOTPLUG);
 		if (ret < 0)
 			return ret;
 	}
-	memmap_init_zone(nr_pages, nid, zone_type, phys_start_pfn);
-	zonetable_add(zone, nid, zone_type, phys_start_pfn, nr_pages);
+	memmap_init_zone(nr_pages, nid, zone_type,
+			 phys_start_pfn, MEMMAP_HOTPLUG);
 	return 0;
 }
 
@@ -186,6 +217,10 @@ int online_pages(unsigned long pfn, unsigned long nr_pages)
 	zone->zone_pgdat->node_present_pages += onlined_pages;
 
 	setup_per_zone_pages_min();
+	if (onlined_pages) {
+		kswapd_run(zone_to_nid(zone));
+		node_set_state(zone_to_nid(zone), N_HIGH_MEMORY);
+	}
 
 	if (need_zonelists_rebuild)
 		build_all_zonelists();
@@ -223,36 +258,6 @@ static void rollback_node_hotadd(int nid, pg_data_t *pgdat)
 	return;
 }
 
-/* add this memory to iomem resource */
-static struct resource *register_memory_resource(u64 start, u64 size)
-{
-	struct resource *res;
-	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
-	BUG_ON(!res);
-
-	res->name = "System RAM";
-	res->start = start;
-	res->end = start + size - 1;
-	res->flags = IORESOURCE_MEM;
-	if (request_resource(&iomem_resource, res) < 0) {
-		printk("System RAM resource %llx - %llx cannot be added\n",
-		(unsigned long long)res->start, (unsigned long long)res->end);
-		kfree(res);
-		res = NULL;
-	}
-	return res;
-}
-
-static void release_memory_resource(struct resource *res)
-{
-	if (!res)
-		return;
-	release_resource(res);
-	kfree(res);
-	return;
-}
-
-
 
 int add_memory(int nid, u64 start, u64 size)
 {
@@ -270,9 +275,6 @@ int add_memory(int nid, u64 start, u64 size)
 		if (!pgdat)
 			return -ENOMEM;
 		new_pgdat = 1;
-		ret = kswapd_run(nid);
-		if (ret)
-			goto error;
 	}
 
 	/* call arch's memory hotadd */