X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=mm%2Fsparse.c;h=239f5a720d38fbe781751d2e3cb422cf49509d7d;hb=b0f655d0ef02468232b69acad1d935db921db46b;hp=893e5621c247c5a9be9f3d565f7f2c82d92ac80a;hpb=805f53f085346b6765eda02820721a14ce0d644f;p=linux-2.6-omap-h63xx.git

diff --git a/mm/sparse.c b/mm/sparse.c
index 893e5621c24..239f5a720d3 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -41,10 +41,19 @@ int page_to_nid(struct page *page)
 	return section_to_node_table[page_to_section(page)];
 }
 EXPORT_SYMBOL(page_to_nid);
+
+static void set_section_nid(unsigned long section_nr, int nid)
+{
+	section_to_node_table[section_nr] = nid;
+}
+#else /* !NODE_NOT_IN_PAGE_FLAGS */
+static inline void set_section_nid(unsigned long section_nr, int nid)
+{
+}
 #endif
 
 #ifdef CONFIG_SPARSEMEM_EXTREME
-static struct mem_section *sparse_index_alloc(int nid)
+static struct mem_section noinline __init_refok *sparse_index_alloc(int nid)
 {
 	struct mem_section *section = NULL;
 	unsigned long array_size = SECTIONS_PER_ROOT *
@@ -61,17 +70,13 @@ static struct mem_section *sparse_index_alloc(int nid)
 	return section;
 }
 
-static int sparse_index_init(unsigned long section_nr, int nid)
+static int __meminit sparse_index_init(unsigned long section_nr, int nid)
 {
 	static DEFINE_SPINLOCK(index_init_lock);
 	unsigned long root = SECTION_NR_TO_ROOT(section_nr);
 	struct mem_section *section;
 	int ret = 0;
 
-#ifdef NODE_NOT_IN_PAGE_FLAGS
-	section_to_node_table[section_nr] = nid;
-#endif
-
 	if (mem_section[root])
 		return -EEXIST;
 
@@ -138,7 +143,7 @@ static inline int sparse_early_nid(struct mem_section *section)
 }
 
 /* Record a memory area against a node. */
-void memory_present(int nid, unsigned long start, unsigned long end)
+void __init memory_present(int nid, unsigned long start, unsigned long end)
 {
 	unsigned long pfn;
 
@@ -148,6 +153,7 @@ void memory_present(int nid, unsigned long start, unsigned long end)
 		struct mem_section *ms;
 
 		sparse_index_init(section, nid);
+		set_section_nid(section, nid);
 
 		ms = __nr_to_section(section);
 		if (!ms->section_mem_map)
@@ -197,7 +203,7 @@ struct page *sparse_decode_mem_map(unsigned long coded_mem_map, unsigned long pn
 	return ((struct page *)coded_mem_map) + section_nr_to_pfn(pnum);
 }
 
-static int sparse_init_one_section(struct mem_section *ms,
+static int __meminit sparse_init_one_section(struct mem_section *ms,
 		unsigned long pnum, struct page *mem_map)
 {
 	if (!valid_section(ms))
@@ -209,7 +215,13 @@ static int sparse_init_one_section(struct mem_section *ms,
 	return 1;
 }
 
-static struct page *sparse_early_mem_map_alloc(unsigned long pnum)
+__attribute__((weak)) __init
+void *alloc_bootmem_high_node(pg_data_t *pgdat, unsigned long size)
+{
+	return NULL;
+}
+
+static struct page __init *sparse_early_mem_map_alloc(unsigned long pnum)
 {
 	struct page *map;
 	struct mem_section *ms = __nr_to_section(pnum);
@@ -219,6 +231,11 @@ static struct page *sparse_early_mem_map_alloc(unsigned long pnum)
 	if (map)
 		return map;
 
+  	map = alloc_bootmem_high_node(NODE_DATA(nid),
+                       sizeof(struct page) * PAGES_PER_SECTION);
+	if (map)
+		return map;
+
 	map = alloc_bootmem_node(NODE_DATA(nid),
 			sizeof(struct page) * PAGES_PER_SECTION);
 	if (map)
@@ -229,6 +246,27 @@ static struct page *sparse_early_mem_map_alloc(unsigned long pnum)
 	return NULL;
 }
 
+/*
+ * Allocate the accumulated non-linear sections, allocate a mem_map
+ * for each and record the physical to section mapping.
+ */
+void __init sparse_init(void)
+{
+	unsigned long pnum;
+	struct page *map;
+
+	for (pnum = 0; pnum < NR_MEM_SECTIONS; pnum++) {
+		if (!valid_section_nr(pnum))
+			continue;
+
+		map = sparse_early_mem_map_alloc(pnum);
+		if (!map)
+			continue;
+		sparse_init_one_section(__nr_to_section(pnum), pnum, map);
+	}
+}
+
+#ifdef CONFIG_MEMORY_HOTPLUG
 static struct page *__kmalloc_section_memmap(unsigned long nr_pages)
 {
 	struct page *page, *ret;
@@ -268,26 +306,6 @@ static void __kfree_section_memmap(struct page *memmap, unsigned long nr_pages)
 			   get_order(sizeof(struct page) * nr_pages));
 }
 
-/*
- * Allocate the accumulated non-linear sections, allocate a mem_map
- * for each and record the physical to section mapping.
- */
-void __init sparse_init(void)
-{
-	unsigned long pnum;
-	struct page *map;
-
-	for (pnum = 0; pnum < NR_MEM_SECTIONS; pnum++) {
-		if (!valid_section_nr(pnum))
-			continue;
-
-		map = sparse_early_mem_map_alloc(pnum);
-		if (!map)
-			continue;
-		sparse_init_one_section(__nr_to_section(pnum), pnum, map);
-	}
-}
-
 /*
  * returns the number of sections whose mem_maps were properly
  * set.  If this is <=0, then that means that the passed-in
@@ -327,3 +345,4 @@ out:
 		__kfree_section_memmap(memmap, nr_pages);
 	return ret;
 }
+#endif