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()
  ...

4 files changed, 21 insertions, 46 deletions

diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
index 161cefde5c15..58861fa1220e 100644
--- a/arch/powerpc/mm/init_32.c
+++ b/arch/powerpc/mm/init_32.c
@@ -134,8 +134,7 @@ void __init MMU_init(void)
 
 	if (memblock.memory.cnt > 1) {
 #ifndef CONFIG_WII
-		memblock.memory.cnt = 1;
-		memblock_analyze();
+		memblock_enforce_memory_limit(memblock.memory.regions[0].size);
 		printk(KERN_WARNING "Only using first contiguous memory region");
 #else
 		wii_memory_fixups();
@@ -158,7 +157,6 @@ void __init MMU_init(void)
 #ifndef CONFIG_HIGHMEM
 		total_memory = total_lowmem;
 		memblock_enforce_memory_limit(total_lowmem);
-		memblock_analyze();
 #endif /* CONFIG_HIGHMEM */
 	}
 
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 2dd6bdd31fe1..8e2eb6611b0b 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -199,7 +199,7 @@ void __init do_init_bootmem(void)
 		unsigned long start_pfn, end_pfn;
 		start_pfn = memblock_region_memory_base_pfn(reg);
 		end_pfn = memblock_region_memory_end_pfn(reg);
-		add_active_range(0, start_pfn, end_pfn);
+		memblock_set_node(0, (phys_addr_t)ULLONG_MAX, 0);
 	}
 
 	/* Add all physical memory to the bootmem map, mark each area
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index b22a83a91cb8..e6eea0ac80c8 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -127,45 +127,25 @@ static int __cpuinit fake_numa_create_new_node(unsigned long end_pfn,
 }
 
 /*
- * get_active_region_work_fn - A helper function for get_node_active_region
- *	Returns datax set to the start_pfn and end_pfn if they contain
- *	the initial value of datax->start_pfn between them
- * @start_pfn: start page(inclusive) of region to check
- * @end_pfn: end page(exclusive) of region to check
- * @datax: comes in with ->start_pfn set to value to search for and
- *	goes out with active range if it contains it
- * Returns 1 if search value is in range else 0
- */
-static int __init get_active_region_work_fn(unsigned long start_pfn,
-					unsigned long end_pfn, void *datax)
-{
-	struct node_active_region *data;
-	data = (struct node_active_region *)datax;
-
-	if (start_pfn <= data->start_pfn && end_pfn > data->start_pfn) {
-		data->start_pfn = start_pfn;
-		data->end_pfn = end_pfn;
-		return 1;
-	}
-	return 0;
-
-}
-
-/*
- * get_node_active_region - Return active region containing start_pfn
+ * get_node_active_region - Return active region containing pfn
  * Active range returned is empty if none found.
- * @start_pfn: The page to return the region for.
- * @node_ar: Returned set to the active region containing start_pfn
+ * @pfn: The page to return the region for
+ * @node_ar: Returned set to the active region containing @pfn
  */
-static void __init get_node_active_region(unsigned long start_pfn,
-		       struct node_active_region *node_ar)
+static void __init get_node_active_region(unsigned long pfn,
+					  struct node_active_region *node_ar)
 {
-	int nid = early_pfn_to_nid(start_pfn);
+	unsigned long start_pfn, end_pfn;
+	int i, nid;
 
-	node_ar->nid = nid;
-	node_ar->start_pfn = start_pfn;
-	node_ar->end_pfn = start_pfn;
-	work_with_active_regions(nid, get_active_region_work_fn, node_ar);
+	for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn, &nid) {
+		if (pfn >= start_pfn && pfn < end_pfn) {
+			node_ar->nid = nid;
+			node_ar->start_pfn = start_pfn;
+			node_ar->end_pfn = end_pfn;
+			break;
+		}
+	}
 }
 
 static void map_cpu_to_node(int cpu, int node)
@@ -710,9 +690,7 @@ static void __init parse_drconf_memory(struct device_node *memory)
 			node_set_online(nid);
 			sz = numa_enforce_memory_limit(base, size);
 			if (sz)
-				add_active_range(nid, base >> PAGE_SHIFT,
-						 (base >> PAGE_SHIFT)
-						 + (sz >> PAGE_SHIFT));
+				memblock_set_node(base, sz, nid);
 		} while (--ranges);
 	}
 }
@@ -802,8 +780,7 @@ new_range:
 				continue;
 		}
 
-		add_active_range(nid, start >> PAGE_SHIFT,
-				(start >> PAGE_SHIFT) + (size >> PAGE_SHIFT));
+		memblock_set_node(start, size, nid);
 
 		if (--ranges)
 			goto new_range;
@@ -839,7 +816,8 @@ static void __init setup_nonnuma(void)
 		end_pfn = memblock_region_memory_end_pfn(reg);
 
 		fake_numa_create_new_node(end_pfn, &nid);
-		add_active_range(nid, start_pfn, end_pfn);
+		memblock_set_node(PFN_PHYS(start_pfn),
+				  PFN_PHYS(end_pfn - start_pfn), nid);
 		node_set_online(nid);
 	}
 }
diff --git a/arch/powerpc/mm/tlb_nohash.c b/arch/powerpc/mm/tlb_nohash.c
index 4e13d6f9023e..573ba3b69d1f 100644
--- a/arch/powerpc/mm/tlb_nohash.c
+++ b/arch/powerpc/mm/tlb_nohash.c
@@ -615,7 +615,6 @@ static void __early_init_mmu(int boot_cpu)
 
 		/* limit memory so we dont have linear faults */
 		memblock_enforce_memory_limit(linear_map_top);
-		memblock_analyze();
 
 		patch_exception(0x1c0, exc_data_tlb_miss_bolted_book3e);
 		patch_exception(0x1e0, exc_instruction_tlb_miss_bolted_book3e);