Merge branch 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

* 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)
  memblock: Reimplement memblock allocation using reverse free area iterator
  memblock: Kill early_node_map[]
  score: Use HAVE_MEMBLOCK_NODE_MAP
  s390: Use HAVE_MEMBLOCK_NODE_MAP
  mips: Use HAVE_MEMBLOCK_NODE_MAP
  ia64: Use HAVE_MEMBLOCK_NODE_MAP
  SuperH: Use HAVE_MEMBLOCK_NODE_MAP
  sparc: Use HAVE_MEMBLOCK_NODE_MAP
  powerpc: Use HAVE_MEMBLOCK_NODE_MAP
  memblock: Implement memblock_add_node()
  memblock: s/memblock_analyze()/memblock_allow_resize()/ and update users
  memblock: Track total size of regions automatically
  powerpc: Cleanup memblock usage
  memblock: Reimplement memblock_enforce_memory_limit() using __memblock_remove()
  memblock: Make memblock functions handle overflowing range @size
  memblock: Reimplement __memblock_remove() using memblock_isolate_range()
  memblock: Separate out memblock_isolate_range() from memblock_set_node()
  memblock: Kill memblock_init()
  memblock: Kill sentinel entries at the end of static region arrays
  memblock: Add __memblock_dump_all()
  ...

1 files changed, 15 insertions, 21 deletions

diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 29f7c6d9..0c1da39 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -427,23 +427,17 @@ static void __init add_one_highpage_init(struct page *page)
 void __init add_highpages_with_active_regions(int nid,
 			 unsigned long start_pfn, unsigned long end_pfn)
 {
-	struct range *range;
-	int nr_range;
-	int i;
-
-	nr_range = __get_free_all_memory_range(&range, nid, start_pfn, end_pfn);
-
-	for (i = 0; i < nr_range; i++) {
-		struct page *page;
-		int node_pfn;
-
-		for (node_pfn = range[i].start; node_pfn < range[i].end;
-		     node_pfn++) {
-			if (!pfn_valid(node_pfn))
-				continue;
-			page = pfn_to_page(node_pfn);
-			add_one_highpage_init(page);
-		}
+	phys_addr_t start, end;
+	u64 i;
+
+	for_each_free_mem_range(i, nid, &start, &end, NULL) {
+		unsigned long pfn = clamp_t(unsigned long, PFN_UP(start),
+					    start_pfn, end_pfn);
+		unsigned long e_pfn = clamp_t(unsigned long, PFN_DOWN(end),
+					      start_pfn, end_pfn);
+		for ( ; pfn < e_pfn; pfn++)
+			if (pfn_valid(pfn))
+				add_one_highpage_init(pfn_to_page(pfn));
 	}
 }
 #else
@@ -650,18 +644,18 @@ void __init initmem_init(void)
 	highstart_pfn = highend_pfn = max_pfn;
 	if (max_pfn > max_low_pfn)
 		highstart_pfn = max_low_pfn;
-	memblock_x86_register_active_regions(0, 0, highend_pfn);
-	sparse_memory_present_with_active_regions(0);
 	printk(KERN_NOTICE "%ldMB HIGHMEM available.\n",
 		pages_to_mb(highend_pfn - highstart_pfn));
 	num_physpages = highend_pfn;
 	high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1;
 #else
-	memblock_x86_register_active_regions(0, 0, max_low_pfn);
-	sparse_memory_present_with_active_regions(0);
 	num_physpages = max_low_pfn;
 	high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1;
 #endif
+
+	memblock_set_node(0, (phys_addr_t)ULLONG_MAX, 0);
+	sparse_memory_present_with_active_regions(0);
+
 #ifdef CONFIG_FLATMEM
 	max_mapnr = num_physpages;
 #endif