Merge branch 'memblock-kill-early_node_map' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc into core/memblock

64 files changed, 240 insertions, 772 deletions

diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 8fc2c8fcbdc6..c0b59bff6be6 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -52,6 +52,7 @@
 #include <asm/mach/time.h>
 #include <asm/traps.h>
 #include <asm/unwind.h>
+#include <asm/memblock.h>
 
 #if defined(CONFIG_DEPRECATED_PARAM_STRUCT)
 #include "compat.h"
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index fbdd12ea3a58..7c38474e533a 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -32,6 +32,7 @@
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
+#include <asm/memblock.h>
 
 #include "mm.h"
 
@@ -332,7 +333,6 @@ void __init arm_memblock_init(struct meminfo *mi, struct machine_desc *mdesc)
 
         sort(&meminfo.bank, meminfo.nr_banks, sizeof(meminfo.bank[0]), meminfo_cmp, NULL);
 
-        memblock_init();
         for (i = 0; i < mi->nr_banks; i++)
                 memblock_add(mi->bank[i].start, mi->bank[i].size);
 
@@ -371,7 +371,7 @@ void __init arm_memblock_init(struct meminfo *mi, struct machine_desc *mdesc)
         if (mdesc->reserve)
                 mdesc->reserve();
 
-        memblock_analyze();
+        memblock_allow_resize();
         memblock_dump_all();
 }
 
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 27489b6dd533..3b7a7c483785 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -23,6 +23,9 @@ config IA64
         select HAVE_ARCH_TRACEHOOK
         select HAVE_DMA_API_DEBUG
         select HAVE_GENERIC_HARDIRQS
+        select HAVE_MEMBLOCK
+        select HAVE_MEMBLOCK_NODE_MAP
+        select ARCH_DISCARD_MEMBLOCK
         select GENERIC_IRQ_PROBE
         select GENERIC_PENDING_IRQ if SMP
         select IRQ_PER_CPU
@@ -474,9 +477,6 @@ config NODES_SHIFT
           MAX_NUMNODES will be 2^(This value).
           If in doubt, use the default.
 
-config ARCH_POPULATES_NODE_MAP
-        def_bool y
-
 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
 # VIRTUAL_MEM_MAP has been retained for historical reasons.
 config VIRTUAL_MEM_MAP
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index f114a3b14c6a..1516d1dc11fd 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -16,6 +16,7 @@
  */
 #include <linux/bootmem.h>
 #include <linux/efi.h>
+#include <linux/memblock.h>
 #include <linux/mm.h>
 #include <linux/nmi.h>
 #include <linux/swap.h>
@@ -348,7 +349,7 @@ paging_init (void)
                 printk("Virtual mem_map starts at 0x%p\n", mem_map);
         }
 #else /* !CONFIG_VIRTUAL_MEM_MAP */
-        add_active_range(0, 0, max_low_pfn);
+        memblock_add_node(0, PFN_PHYS(max_low_pfn), 0);
         free_area_init_nodes(max_zone_pfns);
 #endif /* !CONFIG_VIRTUAL_MEM_MAP */
         zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page));
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 00cb0e26c64e..13df239dbed1 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -10,6 +10,7 @@
 #include <linux/bootmem.h>
 #include <linux/efi.h>
 #include <linux/elf.h>
+#include <linux/memblock.h>
 #include <linux/mm.h>
 #include <linux/mmzone.h>
 #include <linux/module.h>
@@ -557,8 +558,7 @@ int __init register_active_ranges(u64 start, u64 len, int nid)
 #endif
 
         if (start < end)
-                add_active_range(nid, __pa(start) >> PAGE_SHIFT,
-                        __pa(end) >> PAGE_SHIFT);
+                memblock_add_node(__pa(start), end - start, nid);
         return 0;
 }
 
diff --git a/arch/microblaze/include/asm/memblock.h b/arch/microblaze/include/asm/memblock.h
deleted file mode 100644
index 20a8e257c77f..000000000000
--- a/arch/microblaze/include/asm/memblock.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * Copyright (C) 2008 Michal Simek <monstr@monstr.eu>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#ifndef _ASM_MICROBLAZE_MEMBLOCK_H
-#define _ASM_MICROBLAZE_MEMBLOCK_H
-
-#endif /* _ASM_MICROBLAZE_MEMBLOCK_H */
-
-
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index 977484add216..80d314e81901 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -122,7 +122,6 @@ void __init early_init_devtree(void *params)
         of_scan_flat_dt(early_init_dt_scan_chosen, cmd_line);
 
         /* Scan memory nodes and rebuild MEMBLOCKs */
-        memblock_init();
         of_scan_flat_dt(early_init_dt_scan_root, NULL);
         of_scan_flat_dt(early_init_dt_scan_memory, NULL);
 
@@ -130,7 +129,7 @@ void __init early_init_devtree(void *params)
         strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
         parse_early_param();
 
-        memblock_analyze();
+        memblock_allow_resize();
 
         pr_debug("Phys. mem: %lx\n", (unsigned long) memblock_phys_mem_size());
 
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index d46f1da18a3c..9c652eb68aaa 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -25,6 +25,9 @@ config MIPS
         select GENERIC_IRQ_SHOW
         select HAVE_ARCH_JUMP_LABEL
         select IRQ_FORCED_THREADING
+        select HAVE_MEMBLOCK
+        select HAVE_MEMBLOCK_NODE_MAP
+        select ARCH_DISCARD_MEMBLOCK
 
 menu "Machine selection"
 
@@ -2064,9 +2067,6 @@ config ARCH_DISCONTIGMEM_ENABLE
           or have huge holes in the physical address space for other reasons.
           See <file:Documentation/vm/numa> for more.
 
-config ARCH_POPULATES_NODE_MAP
-        def_bool y
-
 config ARCH_SPARSEMEM_ENABLE
         bool
         select SPARSEMEM_STATIC
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 84af26ab2212..b1cb8f87d7b4 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -14,6 +14,7 @@
 #include <linux/ioport.h>
 #include <linux/export.h>
 #include <linux/screen_info.h>
+#include <linux/memblock.h>
 #include <linux/bootmem.h>
 #include <linux/initrd.h>
 #include <linux/root_dev.h>
@@ -352,7 +353,7 @@ static void __init bootmem_init(void)
                         continue;
 #endif
 
-                add_active_range(0, start, end);
+                memblock_add_node(PFN_PHYS(start), PFN_PHYS(end - start), 0);
         }
 
         /*
diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c
index bc1297109cc5..b105eca3c020 100644
--- a/arch/mips/sgi-ip27/ip27-memory.c
+++ b/arch/mips/sgi-ip27/ip27-memory.c
@@ -12,6 +12,7 @@
  */
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/memblock.h>
 #include <linux/mm.h>
 #include <linux/mmzone.h>
 #include <linux/module.h>
@@ -381,8 +382,8 @@ static void __init szmem(void)
                                 continue;
                         }
                         num_physpages += slot_psize;
-                        add_active_range(node, slot_getbasepfn(node, slot),
-                                         slot_getbasepfn(node, slot) + slot_psize);
+                        memblock_add_node(PFN_PHYS(slot_getbasepfn(node, slot)),
+                                          PFN_PHYS(slot_psize), node);
                 }
         }
 }
diff --git a/arch/openrisc/include/asm/memblock.h b/arch/openrisc/include/asm/memblock.h
deleted file mode 100644
index bbe5a1c788cb..000000000000
--- a/arch/openrisc/include/asm/memblock.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * OpenRISC Linux
- *
- * Linux architectural port borrowing liberally from similar works of
- * others.  All original copyrights apply as per the original source
- * declaration.
- *
- * OpenRISC implementation:
- * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
- * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
- * et al.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef __ASM_OPENRISC_MEMBLOCK_H
-#define __ASM_OPENRISC_MEMBLOCK_H
-
-/* empty */
-
-#endif /* __ASM_OPENRISC_MEMBLOCK_H */
diff --git a/arch/openrisc/kernel/prom.c b/arch/openrisc/kernel/prom.c
index 1bb58ba89afa..3d4478f6c942 100644
--- a/arch/openrisc/kernel/prom.c
+++ b/arch/openrisc/kernel/prom.c
@@ -76,14 +76,13 @@ void __init early_init_devtree(void *params)
         of_scan_flat_dt(early_init_dt_scan_chosen, cmd_line);
 
         /* Scan memory nodes and rebuild MEMBLOCKs */
-        memblock_init();
         of_scan_flat_dt(early_init_dt_scan_root, NULL);
         of_scan_flat_dt(early_init_dt_scan_memory, NULL);
 
         /* Save command line for /proc/cmdline and then parse parameters */
         strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
 
-        memblock_analyze();
+        memblock_allow_resize();
 
         /* We must copy the flattend device tree from init memory to regular
          * memory because the device tree references the strings in it
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 951e18f5335b..ead0bc68439d 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -117,6 +117,7 @@ config PPC
         select HAVE_KRETPROBES
         select HAVE_ARCH_TRACEHOOK
         select HAVE_MEMBLOCK
+        select HAVE_MEMBLOCK_NODE_MAP
         select HAVE_DMA_ATTRS
         select HAVE_DMA_API_DEBUG
         select USE_GENERIC_SMP_HELPERS if SMP
@@ -421,9 +422,6 @@ config ARCH_SPARSEMEM_DEFAULT
         def_bool y
         depends on (SMP && PPC_PSERIES) || PPC_PS3
 
-config ARCH_POPULATES_NODE_MAP
-        def_bool y
-
 config SYS_SUPPORTS_HUGETLBFS
         bool
 
diff --git a/arch/powerpc/include/asm/memblock.h b/arch/powerpc/include/asm/memblock.h
deleted file mode 100644
index 43efc345065e..000000000000
--- a/arch/powerpc/include/asm/memblock.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef _ASM_POWERPC_MEMBLOCK_H
-#define _ASM_POWERPC_MEMBLOCK_H
-
-#include <asm/udbg.h>
-
-#define MEMBLOCK_DBG(fmt...) udbg_printf(fmt)
-
-#endif /* _ASM_POWERPC_MEMBLOCK_H */
diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c
index 9ce1672afb59..a2158a395d96 100644
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -107,9 +107,6 @@ void __init reserve_crashkernel(void)
         unsigned long long crash_size, crash_base;
         int ret;
 
-        /* this is necessary because of memblock_phys_mem_size() */
-        memblock_analyze();
-
         /* use common parsing */
         ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(),
                         &crash_size, &crash_base);
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index fa1235b0503b..abe405dab34d 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -733,8 +733,6 @@ void __init early_init_devtree(void *params)
         of_scan_flat_dt(early_init_dt_scan_chosen_ppc, cmd_line);
 
         /* Scan memory nodes and rebuild MEMBLOCKs */
-        memblock_init();
-
         of_scan_flat_dt(early_init_dt_scan_root, NULL);
         of_scan_flat_dt(early_init_dt_scan_memory_ppc, NULL);
 
@@ -756,20 +754,14 @@ void __init early_init_devtree(void *params)
         early_reserve_mem();
         phyp_dump_reserve_mem();
 
-        limit = memory_limit;
-        if (! limit) {
-                phys_addr_t memsize;
-
-                /* Ensure that total memory size is page-aligned, because
-                 * otherwise mark_bootmem() gets upset. */
-                memblock_analyze();
-                memsize = memblock_phys_mem_size();
-                if ((memsize & PAGE_MASK) != memsize)
-                        limit = memsize & PAGE_MASK;
-        }
+        /*
+         * Ensure that total memory size is page-aligned, because otherwise
+         * mark_bootmem() gets upset.
+         */
+        limit = ALIGN(memory_limit ?: memblock_phys_mem_size(), PAGE_SIZE);
         memblock_enforce_memory_limit(limit);
 
-        memblock_analyze();
+        memblock_allow_resize();
         memblock_dump_all();
 
         DBG("Phys. mem: %llx\n", memblock_phys_mem_size());
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);
diff --git a/arch/powerpc/platforms/embedded6xx/wii.c b/arch/powerpc/platforms/embedded6xx/wii.c
index 1b5dc1a2e145..6d8dadf19f0b 100644
--- a/arch/powerpc/platforms/embedded6xx/wii.c
+++ b/arch/powerpc/platforms/embedded6xx/wii.c
@@ -79,24 +79,19 @@ void __init wii_memory_fixups(void)
         BUG_ON(memblock.memory.cnt != 2);
         BUG_ON(!page_aligned(p[0].base) || !page_aligned(p[1].base));
 
-        p[0].size = _ALIGN_DOWN(p[0].size, PAGE_SIZE);
-        p[1].size = _ALIGN_DOWN(p[1].size, PAGE_SIZE);
+        /* trim unaligned tail */
+        memblock_remove(ALIGN(p[1].base + p[1].size, PAGE_SIZE),
+                        (phys_addr_t)ULLONG_MAX);
 
-        wii_hole_start = p[0].base + p[0].size;
+        /* determine hole, add & reserve them */
+        wii_hole_start = ALIGN(p[0].base + p[0].size, PAGE_SIZE);
         wii_hole_size = p[1].base - wii_hole_start;
-
-        pr_info("MEM1: <%08llx %08llx>\n", p[0].base, p[0].size);
-        pr_info("HOLE: <%08lx %08lx>\n", wii_hole_start, wii_hole_size);
-        pr_info("MEM2: <%08llx %08llx>\n", p[1].base, p[1].size);
-
-        p[0].size += wii_hole_size + p[1].size;
-
-        memblock.memory.cnt = 1;
-        memblock_analyze();
-
-        /* reserve the hole */
+        memblock_add(wii_hole_start, wii_hole_size);
         memblock_reserve(wii_hole_start, wii_hole_size);
 
+        BUG_ON(memblock.memory.cnt != 1);
+        __memblock_dump_all();
+
         /* allow ioremapping the address space in the hole */
         __allow_ioremap_reserved = 1;
 }
diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c
index 72714ad27842..8bd6ba542691 100644
--- a/arch/powerpc/platforms/ps3/mm.c
+++ b/arch/powerpc/platforms/ps3/mm.c
@@ -319,7 +319,6 @@ static int __init ps3_mm_add_memory(void)
         }
 
         memblock_add(start_addr, map.r1.size);
-        memblock_analyze();
 
         result = online_pages(start_pfn, nr_pages);
 
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 373679b3744a..d48ede334434 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -92,6 +92,9 @@ config S390
         select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
         select HAVE_RCU_TABLE_FREE if SMP
         select ARCH_SAVE_PAGE_KEYS if HIBERNATION
+        select HAVE_MEMBLOCK
+        select HAVE_MEMBLOCK_NODE_MAP
+        select ARCH_DISCARD_MEMBLOCK
         select ARCH_INLINE_SPIN_TRYLOCK
         select ARCH_INLINE_SPIN_TRYLOCK_BH
         select ARCH_INLINE_SPIN_LOCK
@@ -345,9 +348,6 @@ config WARN_DYNAMIC_STACK
 
           Say N if you are unsure.
 
-config ARCH_POPULATES_NODE_MAP
-        def_bool y
-
 comment "Kernel preemption"
 
 source "kernel/Kconfig.preempt"
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index e54c4ff8abaa..f11d1b037c50 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -21,6 +21,7 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
+#include <linux/memblock.h>
 #include <linux/mm.h>
 #include <linux/stddef.h>
 #include <linux/unistd.h>
@@ -820,7 +821,8 @@ setup_memory(void)
                 end_chunk = min(end_chunk, end_pfn);
                 if (start_chunk >= end_chunk)
                         continue;
-                add_active_range(0, start_chunk, end_chunk);
+                memblock_add_node(PFN_PHYS(start_chunk),
+                                  PFN_PHYS(end_chunk - start_chunk), 0);
                 pfn = max(start_chunk, start_pfn);
                 for (; pfn < end_chunk; pfn++)
                         page_set_storage_key(PFN_PHYS(pfn),
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index df169e84db4e..8b0c9464aa9d 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -4,6 +4,9 @@ config SCORE
        def_bool y
        select HAVE_GENERIC_HARDIRQS
        select GENERIC_IRQ_SHOW
+       select HAVE_MEMBLOCK
+       select HAVE_MEMBLOCK_NODE_MAP
+       select ARCH_DISCARD_MEMBLOCK
 
 choice
         prompt "System type"
@@ -60,9 +63,6 @@ config 32BIT
 config ARCH_FLATMEM_ENABLE
         def_bool y
 
-config ARCH_POPULATES_NODE_MAP
-        def_bool y
-
 source "mm/Kconfig"
 
 config MEMORY_START
diff --git a/arch/score/kernel/setup.c b/arch/score/kernel/setup.c
index 6f898c057878..b48459afefdd 100644
--- a/arch/score/kernel/setup.c
+++ b/arch/score/kernel/setup.c
@@ -26,6 +26,7 @@
 #include <linux/bootmem.h>
 #include <linux/initrd.h>
 #include <linux/ioport.h>
+#include <linux/memblock.h>
 #include <linux/mm.h>
 #include <linux/seq_file.h>
 #include <linux/screen_info.h>
@@ -54,7 +55,8 @@ static void __init bootmem_init(void)
         /* Initialize the boot-time allocator with low memory only. */
         bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
                                          min_low_pfn, max_low_pfn);
-        add_active_range(0, min_low_pfn, max_low_pfn);
+        memblock_add_node(PFN_PHYS(min_low_pfn),
+                          PFN_PHYS(max_low_pfn - min_low_pfn), 0);
 
         free_bootmem(PFN_PHYS(start_pfn),
                      (max_low_pfn - start_pfn) << PAGE_SHIFT);
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 5629e2099130..47a2f1c2cb0d 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -4,6 +4,7 @@ config SUPERH
         select CLKDEV_LOOKUP
         select HAVE_IDE if HAS_IOPORT
         select HAVE_MEMBLOCK
+        select HAVE_MEMBLOCK_NODE_MAP
         select HAVE_OPROFILE
         select HAVE_GENERIC_DMA_COHERENT
         select HAVE_ARCH_TRACEHOOK
diff --git a/arch/sh/include/asm/memblock.h b/arch/sh/include/asm/memblock.h
deleted file mode 100644
index e87063fad2ea..000000000000
--- a/arch/sh/include/asm/memblock.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#ifndef __ASM_SH_MEMBLOCK_H
-#define __ASM_SH_MEMBLOCK_H
-
-#endif /* __ASM_SH_MEMBLOCK_H */
diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c
index c5a33f007f88..9fea49f6e667 100644
--- a/arch/sh/kernel/machine_kexec.c
+++ b/arch/sh/kernel/machine_kexec.c
@@ -157,9 +157,6 @@ void __init reserve_crashkernel(void)
         unsigned long long crash_size, crash_base;
         int ret;
 
-        /* this is necessary because of memblock_phys_mem_size() */
-        memblock_analyze();
-
         ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(),
                         &crash_size, &crash_base);
         if (ret == 0 && crash_size > 0) {
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 1a0e946679a4..7b57bf1dc855 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -230,7 +230,8 @@ void __init __add_active_range(unsigned int nid, unsigned long start_pfn,
         pmb_bolt_mapping((unsigned long)__va(start), start, end - start,
                          PAGE_KERNEL);
 
-        add_active_range(nid, start_pfn, end_pfn);
+        memblock_set_node(PFN_PHYS(start_pfn),
+                          PFN_PHYS(end_pfn - start_pfn), nid);
 }
 
 void __init __weak plat_early_device_setup(void)
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index c3e61b366493..cb8f9920f4dd 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -143,9 +143,6 @@ config MAX_ACTIVE_REGIONS
                        CPU_SUBTYPE_SH7785)
         default "1"
 
-config ARCH_POPULATES_NODE_MAP
-        def_bool y
-
 config ARCH_SELECT_MEMORY_MODEL
         def_bool y
 
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 939ca0f356f6..82cc576fab15 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -324,7 +324,6 @@ void __init paging_init(void)
         unsigned long vaddr, end;
         int nid;
 
-        memblock_init();
         sh_mv.mv_mem_init();
 
         early_reserve_mem();
@@ -337,7 +336,7 @@ void __init paging_init(void)
                 sh_mv.mv_mem_reserve();
 
         memblock_enforce_memory_limit(memory_limit);
-        memblock_analyze();
+        memblock_allow_resize();
 
         memblock_dump_all();
 
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index f92602e86607..70ae9d81870e 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -43,6 +43,7 @@ config SPARC64
         select HAVE_KPROBES
         select HAVE_RCU_TABLE_FREE if SMP
         select HAVE_MEMBLOCK
+        select HAVE_MEMBLOCK_NODE_MAP
         select HAVE_SYSCALL_WRAPPERS
         select HAVE_DYNAMIC_FTRACE
         select HAVE_FTRACE_MCOUNT_RECORD
@@ -352,9 +353,6 @@ config NODES_SPAN_OTHER_NODES
         def_bool y
         depends on NEED_MULTIPLE_NODES
 
-config ARCH_POPULATES_NODE_MAP
-        def_bool y if SPARC64
-
 config ARCH_SELECT_MEMORY_MODEL
         def_bool y if SPARC64
 
diff --git a/arch/sparc/include/asm/memblock.h b/arch/sparc/include/asm/memblock.h
deleted file mode 100644
index c67b047ef85e..000000000000
--- a/arch/sparc/include/asm/memblock.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef _SPARC64_MEMBLOCK_H
-#define _SPARC64_MEMBLOCK_H
-
-#include <asm/oplib.h>
-
-#define MEMBLOCK_DBG(fmt...) prom_printf(fmt)
-
-#endif /* !(_SPARC64_MEMBLOCK_H) */
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 8e073d802139..b3f5e7dfea51 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -790,7 +790,7 @@ static int find_node(unsigned long addr)
         return -1;
 }
 
-u64 memblock_nid_range(u64 start, u64 end, int *nid)
+static u64 memblock_nid_range(u64 start, u64 end, int *nid)
 {
         *nid = find_node(start);
         start += PAGE_SIZE;
@@ -808,7 +808,7 @@ u64 memblock_nid_range(u64 start, u64 end, int *nid)
         return start;
 }
 #else
-u64 memblock_nid_range(u64 start, u64 end, int *nid)
+static u64 memblock_nid_range(u64 start, u64 end, int *nid)
 {
         *nid = 0;
         return end;
@@ -816,7 +816,7 @@ u64 memblock_nid_range(u64 start, u64 end, int *nid)
 #endif
 
 /* This must be invoked after performing all of the necessary
- * add_active_range() calls for 'nid'.  We need to be able to get
+ * memblock_set_node() calls for 'nid'.  We need to be able to get
  * correct data from get_pfn_range_for_nid().
  */
 static void __init allocate_node_data(int nid)
@@ -987,14 +987,11 @@ static void __init add_node_ranges(void)
 
                         this_end = memblock_nid_range(start, end, &nid);
 
-                        numadbg("Adding active range nid[%d] "
+                        numadbg("Setting memblock NUMA node nid[%d] "
                                 "start[%lx] end[%lx]\n",
                                 nid, start, this_end);
 
-                        add_active_range(nid,
-                                         start >> PAGE_SHIFT,
-                                         this_end >> PAGE_SHIFT);
-
+                        memblock_set_node(start, this_end - start, nid);
                         start = this_end;
                 }
         }
@@ -1282,7 +1279,6 @@ static void __init bootmem_init_nonnuma(void)
 {
         unsigned long top_of_ram = memblock_end_of_DRAM();
         unsigned long total_ram = memblock_phys_mem_size();
-        struct memblock_region *reg;
 
         numadbg("bootmem_init_nonnuma()\n");
 
@@ -1292,20 +1288,8 @@ static void __init bootmem_init_nonnuma(void)
                (top_of_ram - total_ram) >> 20);
 
         init_node_masks_nonnuma();
-
-        for_each_memblock(memory, reg) {
-                unsigned long start_pfn, end_pfn;
-
-                if (!reg->size)
-                        continue;
-
-                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);
         allocate_node_data(0);
-
         node_set_online(0);
 }
 
@@ -1769,8 +1753,6 @@ void __init paging_init(void)
                 sun4v_ktsb_init();
         }
 
-        memblock_init();
-
         /* Find available physical memory...
          *
          * Read it twice in order to work around a bug in openfirmware.
@@ -1796,7 +1778,7 @@ void __init paging_init(void)
 
         memblock_enforce_memory_limit(cmdline_memory_size);
 
-        memblock_analyze();
+        memblock_allow_resize();
         memblock_dump_all();
 
         set_bit(0, mmu_context_bmap);
diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c
index 471b6bca8da4..673d7a89d8ff 100644
--- a/arch/unicore32/kernel/setup.c
+++ b/arch/unicore32/kernel/setup.c
@@ -37,6 +37,7 @@
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
 #include <asm/traps.h>
+#include <asm/memblock.h>
 
 #include "setup.h"
 
diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c
index 3b379cddbc64..de186bde8975 100644
--- a/arch/unicore32/mm/init.c
+++ b/arch/unicore32/mm/init.c
@@ -26,6 +26,7 @@
 #include <asm/setup.h>
 #include <asm/sizes.h>
 #include <asm/tlb.h>
+#include <asm/memblock.h>
 #include <mach/map.h>
 
 #include "mm.h"
@@ -245,7 +246,6 @@ void __init uc32_memblock_init(struct meminfo *mi)
         sort(&meminfo.bank, meminfo.nr_banks, sizeof(meminfo.bank[0]),
                 meminfo_cmp, NULL);
 
-        memblock_init();
         for (i = 0; i < mi->nr_banks; i++)
                 memblock_add(mi->bank[i].start, mi->bank[i].size);
 
@@ -264,7 +264,7 @@ void __init uc32_memblock_init(struct meminfo *mi)
 
         uc32_mm_memblock_reserve();
 
-        memblock_analyze();
+        memblock_allow_resize();
         memblock_dump_all();
 }
 
diff --git a/arch/unicore32/mm/mmu.c b/arch/unicore32/mm/mmu.c
index 3e5c3e5a0b45..43c20b40e444 100644
--- a/arch/unicore32/mm/mmu.c
+++ b/arch/unicore32/mm/mmu.c
@@ -25,6 +25,7 @@
 #include <asm/setup.h>
 #include <asm/sizes.h>
 #include <asm/tlb.h>
+#include <asm/memblock.h>
 
 #include <mach/map.h>
 
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index efb42949cc09..67d6af3581bc 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -26,6 +26,8 @@ config X86
         select HAVE_IOREMAP_PROT
         select HAVE_KPROBES
         select HAVE_MEMBLOCK
+        select HAVE_MEMBLOCK_NODE_MAP
+        select ARCH_DISCARD_MEMBLOCK
         select ARCH_WANT_OPTIONAL_GPIOLIB
         select ARCH_WANT_FRAME_POINTERS
         select HAVE_DMA_ATTRS
@@ -204,9 +206,6 @@ config ZONE_DMA32
         bool
         default X86_64
 
-config ARCH_POPULATES_NODE_MAP
-        def_bool y
-
 config AUDIT_ARCH
         bool
         default X86_64
diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h
index 908b96957d88..37782566af24 100644
--- a/arch/x86/include/asm/e820.h
+++ b/arch/x86/include/asm/e820.h
@@ -117,7 +117,7 @@ static inline void early_memtest(unsigned long start, unsigned long end)
 
 extern unsigned long e820_end_of_ram_pfn(void);
 extern unsigned long e820_end_of_low_ram_pfn(void);
-extern u64 early_reserve_e820(u64 startt, u64 sizet, u64 align);
+extern u64 early_reserve_e820(u64 sizet, u64 align);
 
 void memblock_x86_fill(void);
 void memblock_find_dma_reserve(void);
diff --git a/arch/x86/include/asm/memblock.h b/arch/x86/include/asm/memblock.h
deleted file mode 100644
index 0cd3800f33b9..000000000000
--- a/arch/x86/include/asm/memblock.h
+++ /dev/null
@@ -1,23 +0,0 @@
-#ifndef _X86_MEMBLOCK_H
-#define _X86_MEMBLOCK_H
-
-#define ARCH_DISCARD_MEMBLOCK
-
-u64 memblock_x86_find_in_range_size(u64 start, u64 *sizep, u64 align);
-
-void memblock_x86_reserve_range(u64 start, u64 end, char *name);
-void memblock_x86_free_range(u64 start, u64 end);
-struct range;
-int __get_free_all_memory_range(struct range **range, int nodeid,
-                         unsigned long start_pfn, unsigned long end_pfn);
-int get_free_all_memory_range(struct range **rangep, int nodeid);
-
-void memblock_x86_register_active_regions(int nid, unsigned long start_pfn,
-                                         unsigned long last_pfn);
-u64 memblock_x86_hole_size(u64 start, u64 end);
-u64 memblock_x86_find_in_range_node(int nid, u64 start, u64 end, u64 size, u64 align);
-u64 memblock_x86_free_memory_in_range(u64 addr, u64 limit);
-u64 memblock_x86_memory_in_range(u64 addr, u64 limit);
-bool memblock_x86_check_reserved_size(u64 *addrp, u64 *sizep, u64 align);
-
-#endif
diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 3d2661ca6542..6e76c191a835 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -88,13 +88,13 @@ static u32 __init allocate_aperture(void)
          */
         addr = memblock_find_in_range(GART_MIN_ADDR, GART_MAX_ADDR,
                                       aper_size, aper_size);
-        if (addr == MEMBLOCK_ERROR || addr + aper_size > GART_MAX_ADDR) {
+        if (!addr || addr + aper_size > GART_MAX_ADDR) {
                 printk(KERN_ERR
                         "Cannot allocate aperture memory hole (%lx,%uK)\n",
                                 addr, aper_size>>10);
                 return 0;
         }
-        memblock_x86_reserve_range(addr, addr + aper_size, "aperture64");
+        memblock_reserve(addr, aper_size);
         /*
          * Kmemleak should not scan this block as it may not be mapped via the
          * kernel direct mapping.
diff --git a/arch/x86/kernel/check.c b/arch/x86/kernel/check.c
index 452932d34730..5da1269e8ddc 100644
--- a/arch/x86/kernel/check.c
+++ b/arch/x86/kernel/check.c
@@ -62,7 +62,8 @@ early_param("memory_corruption_check_size", set_corruption_check_size);
 
 void __init setup_bios_corruption_check(void)
 {
-        u64 addr = PAGE_SIZE;   /* assume first page is reserved anyway */
+        phys_addr_t start, end;
+        u64 i;
 
         if (memory_corruption_check == -1) {
                 memory_corruption_check =
@@ -82,28 +83,23 @@ void __init setup_bios_corruption_check(void)
 
         corruption_check_size = round_up(corruption_check_size, PAGE_SIZE);
 
-        while (addr < corruption_check_size && num_scan_areas < MAX_SCAN_AREAS) {
-                u64 size;
-                addr = memblock_x86_find_in_range_size(addr, &size, PAGE_SIZE);
+        for_each_free_mem_range(i, MAX_NUMNODES, &start, &end, NULL) {
+                start = clamp_t(phys_addr_t, round_up(start, PAGE_SIZE),
+                                PAGE_SIZE, corruption_check_size);
+                end = clamp_t(phys_addr_t, round_down(end, PAGE_SIZE),
+                              PAGE_SIZE, corruption_check_size);
+                if (start >= end)
+                        continue;
 
-                if (addr == MEMBLOCK_ERROR)
-                        break;
-
-                if (addr >= corruption_check_size)
-                        break;
-
-                if ((addr + size) > corruption_check_size)
-                        size = corruption_check_size - addr;
-
-                memblock_x86_reserve_range(addr, addr + size, "SCAN RAM");
-                scan_areas[num_scan_areas].addr = addr;
-                scan_areas[num_scan_areas].size = size;
-                num_scan_areas++;
+                memblock_reserve(start, end - start);
+                scan_areas[num_scan_areas].addr = start;
+                scan_areas[num_scan_areas].size = end - start;
 
                 /* Assume we've already mapped this early memory */
-                memset(__va(addr), 0, size);
+                memset(__va(start), 0, end - start);
 
-                addr += size;
+                if (++num_scan_areas >= MAX_SCAN_AREAS)
+                        break;
         }
 
         if (num_scan_areas)
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 303a0e48f076..8071e2f3d6eb 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -738,35 +738,17 @@ core_initcall(e820_mark_nvs_memory);
 /*
  * pre allocated 4k and reserved it in memblock and e820_saved
  */
-u64 __init early_reserve_e820(u64 startt, u64 sizet, u64 align)
+u64 __init early_reserve_e820(u64 size, u64 align)
 {
-        u64 size = 0;
         u64 addr;
-        u64 start;
 
-        for (start = startt; ; start += size) {
-                start = memblock_x86_find_in_range_size(start, &size, align);
-                if (start == MEMBLOCK_ERROR)
-                        return 0;
-                if (size >= sizet)
-                        break;
+        addr = __memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ACCESSIBLE);
+        if (addr) {
+                e820_update_range_saved(addr, size, E820_RAM, E820_RESERVED);
+                printk(KERN_INFO "update e820_saved for early_reserve_e820\n");
+                update_e820_saved();
         }
 
-#ifdef CONFIG_X86_32
-        if (start >= MAXMEM)
-                return 0;
-        if (start + size > MAXMEM)
-                size = MAXMEM - start;
-#endif
-
-        addr = round_down(start + size - sizet, align);
-        if (addr < start)
-                return 0;
-        memblock_x86_reserve_range(addr, addr + sizet, "new next");
-        e820_update_range_saved(addr, sizet, E820_RAM, E820_RESERVED);
-        printk(KERN_INFO "update e820_saved for early_reserve_e820\n");
-        update_e820_saved();
-
         return addr;
 }
 
@@ -1090,7 +1072,7 @@ void __init memblock_x86_fill(void)
          * We are safe to enable resizing, beause memblock_x86_fill()
          * is rather later for x86
          */
-        memblock_can_resize = 1;
+        memblock_allow_resize();
 
         for (i = 0; i < e820.nr_map; i++) {
                 struct e820entry *ei = &e820.map[i];
@@ -1105,22 +1087,36 @@ void __init memblock_x86_fill(void)
                 memblock_add(ei->addr, ei->size);
         }
 
-        memblock_analyze();
         memblock_dump_all();
 }
 
 void __init memblock_find_dma_reserve(void)
 {
 #ifdef CONFIG_X86_64
-        u64 free_size_pfn;
-        u64 mem_size_pfn;
+        u64 nr_pages = 0, nr_free_pages = 0;
+        unsigned long start_pfn, end_pfn;
+        phys_addr_t start, end;
+        int i;
+        u64 u;
+
         /*
          * need to find out used area below MAX_DMA_PFN
          * need to use memblock to get free size in [0, MAX_DMA_PFN]
          * at first, and assume boot_mem will not take below MAX_DMA_PFN
          */
-        mem_size_pfn = memblock_x86_memory_in_range(0, MAX_DMA_PFN << PAGE_SHIFT) >> PAGE_SHIFT;
-        free_size_pfn = memblock_x86_free_memory_in_range(0, MAX_DMA_PFN << PAGE_SHIFT) >> PAGE_SHIFT;
-        set_dma_reserve(mem_size_pfn - free_size_pfn);
+        for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn, NULL) {
+                start_pfn = min_t(unsigned long, start_pfn, MAX_DMA_PFN);
+                end_pfn = min_t(unsigned long, end_pfn, MAX_DMA_PFN);
+                nr_pages += end_pfn - start_pfn;
+        }
+
+        for_each_free_mem_range(u, MAX_NUMNODES, &start, &end, NULL) {
+                start_pfn = min_t(unsigned long, PFN_UP(start), MAX_DMA_PFN);
+                end_pfn = min_t(unsigned long, PFN_DOWN(end), MAX_DMA_PFN);
+                if (start_pfn < end_pfn)
+                        nr_free_pages += end_pfn - start_pfn;
+        }
+
+        set_dma_reserve(nr_pages - nr_free_pages);
 #endif
 }
diff --git a/arch/x86/kernel/head.c b/arch/x86/kernel/head.c
index af0699ba48cf..48d9d4ea1020 100644
--- a/arch/x86/kernel/head.c
+++ b/arch/x86/kernel/head.c
@@ -52,5 +52,5 @@ void __init reserve_ebda_region(void)
                 lowmem = 0x9f000;
 
         /* reserve all memory between lowmem and the 1MB mark */
-        memblock_x86_reserve_range(lowmem, 0x100000, "* BIOS reserved");
+        memblock_reserve(lowmem, 0x100000 - lowmem);
 }
diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
index 3bb08509a7a1..51ff18616d50 100644
--- a/arch/x86/kernel/head32.c
+++ b/arch/x86/kernel/head32.c
@@ -31,9 +31,8 @@ static void __init i386_default_early_setup(void)
 
 void __init i386_start_kernel(void)
 {
-        memblock_init();
-
-        memblock_x86_reserve_range(__pa_symbol(&_text), __pa_symbol(&__bss_stop), "TEXT DATA BSS");
+        memblock_reserve(__pa_symbol(&_text),
+                         __pa_symbol(&__bss_stop) - __pa_symbol(&_text));
 
 #ifdef CONFIG_BLK_DEV_INITRD
         /* Reserve INITRD */
@@ -42,7 +41,7 @@ void __init i386_start_kernel(void)
                 u64 ramdisk_image = boot_params.hdr.ramdisk_image;
                 u64 ramdisk_size  = boot_params.hdr.ramdisk_size;
                 u64 ramdisk_end   = PAGE_ALIGN(ramdisk_image + ramdisk_size);
-                memblock_x86_reserve_range(ramdisk_image, ramdisk_end, "RAMDISK");
+                memblock_reserve(ramdisk_image, ramdisk_end - ramdisk_image);
         }
 #endif
 
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 5655c2272adb..3a3b779f41d3 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -98,9 +98,8 @@ void __init x86_64_start_reservations(char *real_mode_data)
 {
         copy_bootdata(__va(real_mode_data));
 
-        memblock_init();
-
-        memblock_x86_reserve_range(__pa_symbol(&_text), __pa_symbol(&__bss_stop), "TEXT DATA BSS");
+        memblock_reserve(__pa_symbol(&_text),
+                         __pa_symbol(&__bss_stop) - __pa_symbol(&_text));
 
 #ifdef CONFIG_BLK_DEV_INITRD
         /* Reserve INITRD */
@@ -109,7 +108,7 @@ void __init x86_64_start_reservations(char *real_mode_data)
                 unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
                 unsigned long ramdisk_size  = boot_params.hdr.ramdisk_size;
                 unsigned long ramdisk_end   = PAGE_ALIGN(ramdisk_image + ramdisk_size);
-                memblock_x86_reserve_range(ramdisk_image, ramdisk_end, "RAMDISK");
+                memblock_reserve(ramdisk_image, ramdisk_end - ramdisk_image);
         }
 #endif
 
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index 0741b062a304..ca470e4c92dc 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -564,9 +564,7 @@ void __init default_get_smp_config(unsigned int early)
 
 static void __init smp_reserve_memory(struct mpf_intel *mpf)
 {
-        unsigned long size = get_mpc_size(mpf->physptr);
-
-        memblock_x86_reserve_range(mpf->physptr, mpf->physptr+size, "* MP-table mpc");
+        memblock_reserve(mpf->physptr, get_mpc_size(mpf->physptr));
 }
 
 static int __init smp_scan_config(unsigned long base, unsigned long length)
@@ -595,7 +593,7 @@ static int __init smp_scan_config(unsigned long base, unsigned long length)
                                mpf, (u64)virt_to_phys(mpf));
 
                         mem = virt_to_phys(mpf);
-                        memblock_x86_reserve_range(mem, mem + sizeof(*mpf), "* MP-table mpf");
+                        memblock_reserve(mem, sizeof(*mpf));
                         if (mpf->physptr)
                                 smp_reserve_memory(mpf);
 
@@ -836,10 +834,8 @@ early_param("alloc_mptable", parse_alloc_mptable_opt);
 
 void __init early_reserve_e820_mpc_new(void)
 {
-        if (enable_update_mptable && alloc_mptable) {
-                u64 startt = 0;
-                mpc_new_phys = early_reserve_e820(startt, mpc_new_length, 4);
-        }
+        if (enable_update_mptable && alloc_mptable)
+                mpc_new_phys = early_reserve_e820(mpc_new_length, 4);
 }
 
 static int __init update_mp_table(void)
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index cf0ef986cb6d..d05444ac2aea 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -306,7 +306,8 @@ static void __init cleanup_highmap(void)
 static void __init reserve_brk(void)
 {
         if (_brk_end > _brk_start)
-                memblock_x86_reserve_range(__pa(_brk_start), __pa(_brk_end), "BRK");
+                memblock_reserve(__pa(_brk_start),
+                                 __pa(_brk_end) - __pa(_brk_start));
 
         /* Mark brk area as locked down and no longer taking any
            new allocations */
@@ -331,13 +332,13 @@ static void __init relocate_initrd(void)
         ramdisk_here = memblock_find_in_range(0, end_of_lowmem, area_size,
                                          PAGE_SIZE);
 
-        if (ramdisk_here == MEMBLOCK_ERROR)
+        if (!ramdisk_here)
                 panic("Cannot find place for new RAMDISK of size %lld\n",
                          ramdisk_size);
 
         /* Note: this includes all the lowmem currently occupied by
            the initrd, we rely on that fact to keep the data intact. */
-        memblock_x86_reserve_range(ramdisk_here, ramdisk_here + area_size, "NEW RAMDISK");
+        memblock_reserve(ramdisk_here, area_size);
         initrd_start = ramdisk_here + PAGE_OFFSET;
         initrd_end   = initrd_start + ramdisk_size;
         printk(KERN_INFO "Allocated new RAMDISK: %08llx - %08llx\n",
@@ -393,7 +394,7 @@ static void __init reserve_initrd(void)
         initrd_start = 0;
 
         if (ramdisk_size >= (end_of_lowmem>>1)) {
-                memblock_x86_free_range(ramdisk_image, ramdisk_end);
+                memblock_free(ramdisk_image, ramdisk_end - ramdisk_image);
                 printk(KERN_ERR "initrd too large to handle, "
                        "disabling initrd\n");
                 return;
@@ -416,7 +417,7 @@ static void __init reserve_initrd(void)
 
         relocate_initrd();
 
-        memblock_x86_free_range(ramdisk_image, ramdisk_end);
+        memblock_free(ramdisk_image, ramdisk_end - ramdisk_image);
 }
 #else
 static void __init reserve_initrd(void)
@@ -490,15 +491,13 @@ static void __init memblock_x86_reserve_range_setup_data(void)
 {
         struct setup_data *data;
         u64 pa_data;
-        char buf[32];
 
         if (boot_params.hdr.version < 0x0209)
                 return;
         pa_data = boot_params.hdr.setup_data;
         while (pa_data) {
                 data = early_memremap(pa_data, sizeof(*data));
-                sprintf(buf, "setup data %x", data->type);
-                memblock_x86_reserve_range(pa_data, pa_data+sizeof(*data)+data->len, buf);
+                memblock_reserve(pa_data, sizeof(*data) + data->len);
                 pa_data = data->next;
                 early_iounmap(data, sizeof(*data));
         }
@@ -554,7 +553,7 @@ static void __init reserve_crashkernel(void)
                 crash_base = memblock_find_in_range(alignment,
                                CRASH_KERNEL_ADDR_MAX, crash_size, alignment);
 
-                if (crash_base == MEMBLOCK_ERROR) {
+                if (!crash_base) {
                         pr_info("crashkernel reservation failed - No suitable area found.\n");
                         return;
                 }
@@ -568,7 +567,7 @@ static void __init reserve_crashkernel(void)
                         return;
                 }
         }
-        memblock_x86_reserve_range(crash_base, crash_base + crash_size, "CRASH KERNEL");
+        memblock_reserve(crash_base, crash_size);
 
         printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
                         "for crashkernel (System RAM: %ldMB)\n",
@@ -626,7 +625,7 @@ static __init void reserve_ibft_region(void)
         addr = find_ibft_region(&size);
 
         if (size)
-                memblock_x86_reserve_range(addr, addr + size, "* ibft");
+                memblock_reserve(addr, size);
 }
 
 static unsigned reserve_low = CONFIG_X86_RESERVE_LOW << 10;
diff --git a/arch/x86/kernel/trampoline.c b/arch/x86/kernel/trampoline.c
index a91ae7709b49..a73b61055ad6 100644
--- a/arch/x86/kernel/trampoline.c
+++ b/arch/x86/kernel/trampoline.c
@@ -14,11 +14,11 @@ void __init setup_trampolines(void)
 
         /* Has to be in very low memory so we can execute real-mode AP code. */
         mem = memblock_find_in_range(0, 1<<20, size, PAGE_SIZE);
-        if (mem == MEMBLOCK_ERROR)
+        if (!mem)
                 panic("Cannot allocate trampoline\n");
 
         x86_trampoline_base = __va(mem);
-        memblock_x86_reserve_range(mem, mem + size, "TRAMPOLINE");
+        memblock_reserve(mem, size);
 
         printk(KERN_DEBUG "Base memory trampoline at [%p] %llx size %zu\n",
                x86_trampoline_base, (unsigned long long)mem, size);
diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile
index 3d11327c9ab4..23d8e5fecf76 100644
--- a/arch/x86/mm/Makefile
+++ b/arch/x86/mm/Makefile
@@ -27,6 +27,4 @@ obj-$(CONFIG_AMD_NUMA)		+= amdtopology.o
 obj-$(CONFIG_ACPI_NUMA)         += srat.o
 obj-$(CONFIG_NUMA_EMU)          += numa_emulation.o
 
-obj-$(CONFIG_HAVE_MEMBLOCK)             += memblock.o
-
 obj-$(CONFIG_MEMTEST)           += memtest.o
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 87488b93a65c..a298914058f9 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -67,7 +67,7 @@ static void __init find_early_table_space(unsigned long end, int use_pse,
         good_end = max_pfn_mapped << PAGE_SHIFT;
 
         base = memblock_find_in_range(start, good_end, tables, PAGE_SIZE);
-        if (base == MEMBLOCK_ERROR)
+        if (!base)
                 panic("Cannot find space for the kernel page tables");
 
         pgt_buf_start = base >> PAGE_SHIFT;
@@ -80,7 +80,7 @@ static void __init find_early_table_space(unsigned long end, int use_pse,
 
 void __init native_pagetable_reserve(u64 start, u64 end)
 {
-        memblock_x86_reserve_range(start, end, "PGTABLE");
+        memblock_reserve(start, end - start);
 }
 
 struct map_range {
@@ -279,8 +279,8 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
          * pgt_buf_end) and free the other ones (pgt_buf_end - pgt_buf_top)
          * so that they can be reused for other purposes.
          *
-         * On native it just means calling memblock_x86_reserve_range, on Xen it
-         * also means marking RW the pagetable pages that we allocated before
+         * On native it just means calling memblock_reserve, on Xen it also
+         * means marking RW the pagetable pages that we allocated before
          * but that haven't been used.
          *
          * In fact on xen we mark RO the whole range pgt_buf_start -
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 29f7c6d98179..0c1da394a634 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
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index bbaaa005bf0e..a8a56ce3a962 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -608,7 +608,7 @@ kernel_physical_mapping_init(unsigned long start,
 #ifndef CONFIG_NUMA
 void __init initmem_init(void)
 {
-        memblock_x86_register_active_regions(0, 0, max_pfn);
+        memblock_set_node(0, (phys_addr_t)ULLONG_MAX, 0);
 }
 #endif
 
diff --git a/arch/x86/mm/memblock.c b/arch/x86/mm/memblock.c
deleted file mode 100644
index 992da5ec5a64..000000000000
--- a/arch/x86/mm/memblock.c
+++ /dev/null
@@ -1,348 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/bitops.h>
-#include <linux/memblock.h>
-#include <linux/bootmem.h>
-#include <linux/mm.h>
-#include <linux/range.h>
-
-/* Check for already reserved areas */
-bool __init memblock_x86_check_reserved_size(u64 *addrp, u64 *sizep, u64 align)
-{
-        struct memblock_region *r;
-        u64 addr = *addrp, last;
-        u64 size = *sizep;
-        bool changed = false;
-
-again:
-        last = addr + size;
-        for_each_memblock(reserved, r) {
-                if (last > r->base && addr < r->base) {
-                        size = r->base - addr;
-                        changed = true;
-                        goto again;
-                }
-                if (last > (r->base + r->size) && addr < (r->base + r->size)) {
-                        addr = round_up(r->base + r->size, align);
-                        size = last - addr;
-                        changed = true;
-                        goto again;
-                }
-                if (last <= (r->base + r->size) && addr >= r->base) {
-                        *sizep = 0;
-                        return false;
-                }
-        }
-        if (changed) {
-                *addrp = addr;
-                *sizep = size;
-        }
-        return changed;
-}
-
-/*
- * Find next free range after start, and size is returned in *sizep
- */
-u64 __init memblock_x86_find_in_range_size(u64 start, u64 *sizep, u64 align)
-{
-        struct memblock_region *r;
-
-        for_each_memblock(memory, r) {
-                u64 ei_start = r->base;
-                u64 ei_last = ei_start + r->size;
-                u64 addr;
-
-                addr = round_up(ei_start, align);
-                if (addr < start)
-                        addr = round_up(start, align);
-                if (addr >= ei_last)
-                        continue;
-                *sizep = ei_last - addr;
-                while (memblock_x86_check_reserved_size(&addr, sizep, align))
-                        ;
-
-                if (*sizep)
-                        return addr;
-        }
-
-        return MEMBLOCK_ERROR;
-}
-
-static __init struct range *find_range_array(int count)
-{
-        u64 end, size, mem;
-        struct range *range;
-
-        size = sizeof(struct range) * count;
-        end = memblock.current_limit;
-
-        mem = memblock_find_in_range(0, end, size, sizeof(struct range));
-        if (mem == MEMBLOCK_ERROR)
-                panic("can not find more space for range array");
-
-        /*
-         * This range is tempoaray, so don't reserve it, it will not be
-         * overlapped because We will not alloccate new buffer before
-         * We discard this one
-         */
-        range = __va(mem);
-        memset(range, 0, size);
-
-        return range;
-}
-
-static void __init memblock_x86_subtract_reserved(struct range *range, int az)
-{
-        u64 final_start, final_end;
-        struct memblock_region *r;
-
-        /* Take out region array itself at first*/
-        memblock_free_reserved_regions();
-
-        memblock_dbg("Subtract (%ld early reservations)\n", memblock.reserved.cnt);
-
-        for_each_memblock(reserved, r) {
-                memblock_dbg("  [%010llx-%010llx]\n", (u64)r->base, (u64)r->base + r->size - 1);
-                final_start = PFN_DOWN(r->base);
-                final_end = PFN_UP(r->base + r->size);
-                if (final_start >= final_end)
-                        continue;
-                subtract_range(range, az, final_start, final_end);
-        }
-
-        /* Put region array back ? */
-        memblock_reserve_reserved_regions();
-}
-
-struct count_data {
-        int nr;
-};
-
-static int __init count_work_fn(unsigned long start_pfn,
-                                unsigned long end_pfn, void *datax)
-{
-        struct count_data *data = datax;
-
-        data->nr++;
-
-        return 0;
-}
-
-static int __init count_early_node_map(int nodeid)
-{
-        struct count_data data;
-
-        data.nr = 0;
-        work_with_active_regions(nodeid, count_work_fn, &data);
-
-        return data.nr;
-}
-
-int __init __get_free_all_memory_range(struct range **rangep, int nodeid,
-                         unsigned long start_pfn, unsigned long end_pfn)
-{
-        int count;
-        struct range *range;
-        int nr_range;
-
-        count = (memblock.reserved.cnt + count_early_node_map(nodeid)) * 2;
-
-        range = find_range_array(count);
-        nr_range = 0;
-
-        /*
-         * Use early_node_map[] and memblock.reserved.region to get range array
-         * at first
-         */
-        nr_range = add_from_early_node_map(range, count, nr_range, nodeid);
-        subtract_range(range, count, 0, start_pfn);
-        subtract_range(range, count, end_pfn, -1ULL);
-
-        memblock_x86_subtract_reserved(range, count);
-        nr_range = clean_sort_range(range, count);
-
-        *rangep = range;
-        return nr_range;
-}
-
-int __init get_free_all_memory_range(struct range **rangep, int nodeid)
-{
-        unsigned long end_pfn = -1UL;
-
-#ifdef CONFIG_X86_32
-        end_pfn = max_low_pfn;
-#endif
-        return __get_free_all_memory_range(rangep, nodeid, 0, end_pfn);
-}
-
-static u64 __init __memblock_x86_memory_in_range(u64 addr, u64 limit, bool get_free)
-{
-        int i, count;
-        struct range *range;
-        int nr_range;
-        u64 final_start, final_end;
-        u64 free_size;
-        struct memblock_region *r;
-
-        count = (memblock.reserved.cnt + memblock.memory.cnt) * 2;
-
-        range = find_range_array(count);
-        nr_range = 0;
-
-        addr = PFN_UP(addr);
-        limit = PFN_DOWN(limit);
-
-        for_each_memblock(memory, r) {
-                final_start = PFN_UP(r->base);
-                final_end = PFN_DOWN(r->base + r->size);
-                if (final_start >= final_end)
-                        continue;
-                if (final_start >= limit || final_end <= addr)
-                        continue;
-
-                nr_range = add_range(range, count, nr_range, final_start, final_end);
-        }
-        subtract_range(range, count, 0, addr);
-        subtract_range(range, count, limit, -1ULL);
-
-        /* Subtract memblock.reserved.region in range ? */
-        if (!get_free)
-                goto sort_and_count_them;
-        for_each_memblock(reserved, r) {
-                final_start = PFN_DOWN(r->base);
-                final_end = PFN_UP(r->base + r->size);
-                if (final_start >= final_end)
-                        continue;
-                if (final_start >= limit || final_end <= addr)
-                        continue;
-
-                subtract_range(range, count, final_start, final_end);
-        }
-
-sort_and_count_them:
-        nr_range = clean_sort_range(range, count);
-
-        free_size = 0;
-        for (i = 0; i < nr_range; i++)
-                free_size += range[i].end - range[i].start;
-
-        return free_size << PAGE_SHIFT;
-}
-
-u64 __init memblock_x86_free_memory_in_range(u64 addr, u64 limit)
-{
-        return __memblock_x86_memory_in_range(addr, limit, true);
-}
-
-u64 __init memblock_x86_memory_in_range(u64 addr, u64 limit)
-{
-        return __memblock_x86_memory_in_range(addr, limit, false);
-}
-
-void __init memblock_x86_reserve_range(u64 start, u64 end, char *name)
-{
-        if (start == end)
-                return;
-
-        if (WARN_ONCE(start > end, "memblock_x86_reserve_range: wrong range [%#llx, %#llx)\n", start, end))
-                return;
-
-        memblock_dbg("    memblock_x86_reserve_range: [%#010llx-%#010llx] %16s\n", start, end - 1, name);
-
-        memblock_reserve(start, end - start);
-}
-
-void __init memblock_x86_free_range(u64 start, u64 end)
-{
-        if (start == end)
-                return;
-
-        if (WARN_ONCE(start > end, "memblock_x86_free_range: wrong range [%#llx, %#llx)\n", start, end))
-                return;
-
-        memblock_dbg("       memblock_x86_free_range: [%#010llx-%#010llx]\n", start, end - 1);
-
-        memblock_free(start, end - start);
-}
-
-/*
- * Need to call this function after memblock_x86_register_active_regions,
- * so early_node_map[] is filled already.
- */
-u64 __init memblock_x86_find_in_range_node(int nid, u64 start, u64 end, u64 size, u64 align)
-{
-        u64 addr;
-        addr = find_memory_core_early(nid, size, align, start, end);
-        if (addr != MEMBLOCK_ERROR)
-                return addr;
-
-        /* Fallback, should already have start end within node range */
-        return memblock_find_in_range(start, end, size, align);
-}
-
-/*
- * Finds an active region in the address range from start_pfn to last_pfn and
- * returns its range in ei_startpfn and ei_endpfn for the memblock entry.
- */
-static int __init memblock_x86_find_active_region(const struct memblock_region *ei,
-                                  unsigned long start_pfn,
-                                  unsigned long last_pfn,
-                                  unsigned long *ei_startpfn,
-                                  unsigned long *ei_endpfn)
-{
-        u64 align = PAGE_SIZE;
-
-        *ei_startpfn = round_up(ei->base, align) >> PAGE_SHIFT;
-        *ei_endpfn = round_down(ei->base + ei->size, align) >> PAGE_SHIFT;
-
-        /* Skip map entries smaller than a page */
-        if (*ei_startpfn >= *ei_endpfn)
-                return 0;
-
-        /* Skip if map is outside the node */
-        if (*ei_endpfn <= start_pfn || *ei_startpfn >= last_pfn)
-                return 0;
-
-        /* Check for overlaps */
-        if (*ei_startpfn < start_pfn)
-                *ei_startpfn = start_pfn;
-        if (*ei_endpfn > last_pfn)
-                *ei_endpfn = last_pfn;
-
-        return 1;
-}
-
-/* Walk the memblock.memory map and register active regions within a node */
-void __init memblock_x86_register_active_regions(int nid, unsigned long start_pfn,
-                                         unsigned long last_pfn)
-{
-        unsigned long ei_startpfn;
-        unsigned long ei_endpfn;
-        struct memblock_region *r;
-
-        for_each_memblock(memory, r)
-                if (memblock_x86_find_active_region(r, start_pfn, last_pfn,
-                                           &ei_startpfn, &ei_endpfn))
-                        add_active_range(nid, ei_startpfn, ei_endpfn);
-}
-
-/*
- * Find the hole size (in bytes) in the memory range.
- * @start: starting address of the memory range to scan
- * @end: ending address of the memory range to scan
- */
-u64 __init memblock_x86_hole_size(u64 start, u64 end)
-{
-        unsigned long start_pfn = start >> PAGE_SHIFT;
-        unsigned long last_pfn = end >> PAGE_SHIFT;
-        unsigned long ei_startpfn, ei_endpfn, ram = 0;
-        struct memblock_region *r;
-
-        for_each_memblock(memory, r)
-                if (memblock_x86_find_active_region(r, start_pfn, last_pfn,
-                                           &ei_startpfn, &ei_endpfn))
-                        ram += ei_endpfn - ei_startpfn;
-
-        return end - start - ((u64)ram << PAGE_SHIFT);
-}
diff --git a/arch/x86/mm/memtest.c b/arch/x86/mm/memtest.c
index 92faf3a1c53e..c80b9fb95734 100644
--- a/arch/x86/mm/memtest.c
+++ b/arch/x86/mm/memtest.c
@@ -34,7 +34,7 @@ static void __init reserve_bad_mem(u64 pattern, u64 start_bad, u64 end_bad)
                (unsigned long long) pattern,
                (unsigned long long) start_bad,
                (unsigned long long) end_bad);
-        memblock_x86_reserve_range(start_bad, end_bad, "BAD RAM");
+        memblock_reserve(start_bad, end_bad - start_bad);
 }
 
 static void __init memtest(u64 pattern, u64 start_phys, u64 size)
@@ -70,24 +70,19 @@ static void __init memtest(u64 pattern, u64 start_phys, u64 size)
 
 static void __init do_one_pass(u64 pattern, u64 start, u64 end)
 {
-        u64 size = 0;
-
-        while (start < end) {
-                start = memblock_x86_find_in_range_size(start, &size, 1);
-
-                /* done ? */
-                if (start >= end)
-                        break;
-                if (start + size > end)
-                        size = end - start;
-
-                printk(KERN_INFO "  %010llx - %010llx pattern %016llx\n",
-                       (unsigned long long) start,
-                       (unsigned long long) start + size,
-                       (unsigned long long) cpu_to_be64(pattern));
-                memtest(pattern, start, size);
-
-                start += size;
+        u64 i;
+        phys_addr_t this_start, this_end;
+
+        for_each_free_mem_range(i, MAX_NUMNODES, &this_start, &this_end, NULL) {
+                this_start = clamp_t(phys_addr_t, this_start, start, end);
+                this_end = clamp_t(phys_addr_t, this_end, start, end);
+                if (this_start < this_end) {
+                        printk(KERN_INFO "  %010llx - %010llx pattern %016llx\n",
+                               (unsigned long long)this_start,
+                               (unsigned long long)this_end,
+                               (unsigned long long)cpu_to_be64(pattern));
+                        memtest(pattern, this_start, this_end - this_start);
+                }
         }
 }
 
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index fbeaaf416610..496f494593bf 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -192,8 +192,6 @@ int __init numa_add_memblk(int nid, u64 start, u64 end)
 /* Initialize NODE_DATA for a node on the local memory */
 static void __init setup_node_data(int nid, u64 start, u64 end)
 {
-        const u64 nd_low = PFN_PHYS(MAX_DMA_PFN);
-        const u64 nd_high = PFN_PHYS(max_pfn_mapped);
         const size_t nd_size = roundup(sizeof(pg_data_t), PAGE_SIZE);
         bool remapped = false;
         u64 nd_pa;
@@ -224,17 +222,12 @@ static void __init setup_node_data(int nid, u64 start, u64 end)
                 nd_pa = __pa(nd);
                 remapped = true;
         } else {
-                nd_pa = memblock_x86_find_in_range_node(nid, nd_low, nd_high,
-                                                nd_size, SMP_CACHE_BYTES);
-                if (nd_pa == MEMBLOCK_ERROR)
-                        nd_pa = memblock_find_in_range(nd_low, nd_high,
-                                                nd_size, SMP_CACHE_BYTES);
-                if (nd_pa == MEMBLOCK_ERROR) {
+                nd_pa = memblock_alloc_nid(nd_size, SMP_CACHE_BYTES, nid);
+                if (!nd_pa) {
                         pr_err("Cannot find %zu bytes in node %d\n",
                                nd_size, nid);
                         return;
                 }
-                memblock_x86_reserve_range(nd_pa, nd_pa + nd_size, "NODE_DATA");
                 nd = __va(nd_pa);
         }
 
@@ -371,8 +364,7 @@ void __init numa_reset_distance(void)
 
         /* numa_distance could be 1LU marking allocation failure, test cnt */
         if (numa_distance_cnt)
-                memblock_x86_free_range(__pa(numa_distance),
-                                        __pa(numa_distance) + size);
+                memblock_free(__pa(numa_distance), size);
         numa_distance_cnt = 0;
         numa_distance = NULL;   /* enable table creation */
 }
@@ -395,13 +387,13 @@ static int __init numa_alloc_distance(void)
 
         phys = memblock_find_in_range(0, PFN_PHYS(max_pfn_mapped),
                                       size, PAGE_SIZE);
-        if (phys == MEMBLOCK_ERROR) {
+        if (!phys) {
                 pr_warning("NUMA: Warning: can't allocate distance table!\n");
                 /* don't retry until explicitly reset */
                 numa_distance = (void *)1LU;
                 return -ENOMEM;
         }
-        memblock_x86_reserve_range(phys, phys + size, "NUMA DIST");
+        memblock_reserve(phys, size);
 
         numa_distance = __va(phys);
         numa_distance_cnt = cnt;
@@ -482,8 +474,8 @@ static bool __init numa_meminfo_cover_memory(const struct numa_meminfo *mi)
                         numaram = 0;
         }
 
-        e820ram = max_pfn - (memblock_x86_hole_size(0,
-                                        PFN_PHYS(max_pfn)) >> PAGE_SHIFT);
+        e820ram = max_pfn - absent_pages_in_range(0, max_pfn);
+
         /* We seem to lose 3 pages somewhere. Allow 1M of slack. */
         if ((s64)(e820ram - numaram) >= (1 << (20 - PAGE_SHIFT))) {
                 printk(KERN_ERR "NUMA: nodes only cover %LuMB of your %LuMB e820 RAM. Not used.\n",
@@ -505,13 +497,10 @@ static int __init numa_register_memblks(struct numa_meminfo *mi)
         if (WARN_ON(nodes_empty(node_possible_map)))
                 return -EINVAL;
 
-        for (i = 0; i < mi->nr_blks; i++)
-                memblock_x86_register_active_regions(mi->blk[i].nid,
-                                        mi->blk[i].start >> PAGE_SHIFT,
-                                        mi->blk[i].end >> PAGE_SHIFT);
-
-        /* for out of order entries */
-        sort_node_map();
+        for (i = 0; i < mi->nr_blks; i++) {
+                struct numa_memblk *mb = &mi->blk[i];
+                memblock_set_node(mb->start, mb->end - mb->start, mb->nid);
+        }
 
         /*
          * If sections array is gonna be used for pfn -> nid mapping, check
@@ -545,6 +534,8 @@ static int __init numa_register_memblks(struct numa_meminfo *mi)
                         setup_node_data(nid, start, end);
         }
 
+        /* Dump memblock with node info and return. */
+        memblock_dump_all();
         return 0;
 }
 
@@ -582,7 +573,7 @@ static int __init numa_init(int (*init_func)(void))
         nodes_clear(node_possible_map);
         nodes_clear(node_online_map);
         memset(&numa_meminfo, 0, sizeof(numa_meminfo));
-        remove_all_active_ranges();
+        WARN_ON(memblock_set_node(0, ULLONG_MAX, MAX_NUMNODES));
         numa_reset_distance();
 
         ret = init_func();
diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c
index 3adebe7e536a..534255a36b6b 100644
--- a/arch/x86/mm/numa_32.c
+++ b/arch/x86/mm/numa_32.c
@@ -199,23 +199,23 @@ void __init init_alloc_remap(int nid, u64 start, u64 end)
 
         /* allocate node memory and the lowmem remap area */
         node_pa = memblock_find_in_range(start, end, size, LARGE_PAGE_BYTES);
-        if (node_pa == MEMBLOCK_ERROR) {
+        if (!node_pa) {
                 pr_warning("remap_alloc: failed to allocate %lu bytes for node %d\n",
                            size, nid);
                 return;
         }
-        memblock_x86_reserve_range(node_pa, node_pa + size, "KVA RAM");
+        memblock_reserve(node_pa, size);
 
         remap_pa = memblock_find_in_range(min_low_pfn << PAGE_SHIFT,
                                           max_low_pfn << PAGE_SHIFT,
                                           size, LARGE_PAGE_BYTES);
-        if (remap_pa == MEMBLOCK_ERROR) {
+        if (!remap_pa) {
                 pr_warning("remap_alloc: failed to allocate %lu bytes remap area for node %d\n",
                            size, nid);
-                memblock_x86_free_range(node_pa, node_pa + size);
+                memblock_free(node_pa, size);
                 return;
         }
-        memblock_x86_reserve_range(remap_pa, remap_pa + size, "KVA PG");
+        memblock_reserve(remap_pa, size);
         remap_va = phys_to_virt(remap_pa);
 
         /* perform actual remap */
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index dd27f401f0a0..92e27119ee1a 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -19,7 +19,7 @@ unsigned long __init numa_free_all_bootmem(void)
         for_each_online_node(i)
                 pages += free_all_bootmem_node(NODE_DATA(i));
 
-        pages += free_all_memory_core_early(MAX_NUMNODES);
+        pages += free_low_memory_core_early(MAX_NUMNODES);
 
         return pages;
 }
diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c
index d0ed086b6247..46db56845f18 100644
--- a/arch/x86/mm/numa_emulation.c
+++ b/arch/x86/mm/numa_emulation.c
@@ -28,6 +28,16 @@ static int __init emu_find_memblk_by_nid(int nid, const struct numa_meminfo *mi)
         return -ENOENT;
 }
 
+static u64 mem_hole_size(u64 start, u64 end)
+{
+        unsigned long start_pfn = PFN_UP(start);
+        unsigned long end_pfn = PFN_DOWN(end);
+
+        if (start_pfn < end_pfn)
+                return PFN_PHYS(absent_pages_in_range(start_pfn, end_pfn));
+        return 0;
+}
+
 /*
  * Sets up nid to range from @start to @end.  The return value is -errno if
  * something went wrong, 0 otherwise.
@@ -89,7 +99,7 @@ static int __init split_nodes_interleave(struct numa_meminfo *ei,
          * Calculate target node size.  x86_32 freaks on __udivdi3() so do
          * the division in ulong number of pages and convert back.
          */
-        size = max_addr - addr - memblock_x86_hole_size(addr, max_addr);
+        size = max_addr - addr - mem_hole_size(addr, max_addr);
         size = PFN_PHYS((unsigned long)(size >> PAGE_SHIFT) / nr_nodes);
 
         /*
@@ -135,8 +145,7 @@ static int __init split_nodes_interleave(struct numa_meminfo *ei,
                          * Continue to add memory to this fake node if its
                          * non-reserved memory is less than the per-node size.
                          */
-                        while (end - start -
-                               memblock_x86_hole_size(start, end) < size) {
+                        while (end - start - mem_hole_size(start, end) < size) {
                                 end += FAKE_NODE_MIN_SIZE;
                                 if (end > limit) {
                                         end = limit;
@@ -150,7 +159,7 @@ static int __init split_nodes_interleave(struct numa_meminfo *ei,
                          * this one must extend to the boundary.
                          */
                         if (end < dma32_end && dma32_end - end -
-                            memblock_x86_hole_size(end, dma32_end) < FAKE_NODE_MIN_SIZE)
+                            mem_hole_size(end, dma32_end) < FAKE_NODE_MIN_SIZE)
                                 end = dma32_end;
 
                         /*
@@ -158,8 +167,7 @@ static int __init split_nodes_interleave(struct numa_meminfo *ei,
                          * next node, this one must extend to the end of the
                          * physical node.
                          */
-                        if (limit - end -
-                            memblock_x86_hole_size(end, limit) < size)
+                        if (limit - end - mem_hole_size(end, limit) < size)
                                 end = limit;
 
                         ret = emu_setup_memblk(ei, pi, nid++ % nr_nodes,
@@ -180,7 +188,7 @@ static u64 __init find_end_of_node(u64 start, u64 max_addr, u64 size)
 {
         u64 end = start + size;
 
-        while (end - start - memblock_x86_hole_size(start, end) < size) {
+        while (end - start - mem_hole_size(start, end) < size) {
                 end += FAKE_NODE_MIN_SIZE;
                 if (end > max_addr) {
                         end = max_addr;
@@ -211,8 +219,7 @@ static int __init split_nodes_size_interleave(struct numa_meminfo *ei,
          * creates a uniform distribution of node sizes across the entire
          * machine (but not necessarily over physical nodes).
          */
-        min_size = (max_addr - addr - memblock_x86_hole_size(addr, max_addr)) /
-                                                MAX_NUMNODES;
+        min_size = (max_addr - addr - mem_hole_size(addr, max_addr)) / MAX_NUMNODES;
         min_size = max(min_size, FAKE_NODE_MIN_SIZE);
         if ((min_size & FAKE_NODE_MIN_HASH_MASK) < min_size)
                 min_size = (min_size + FAKE_NODE_MIN_SIZE) &
@@ -252,7 +259,7 @@ static int __init split_nodes_size_interleave(struct numa_meminfo *ei,
                          * this one must extend to the boundary.
                          */
                         if (end < dma32_end && dma32_end - end -
-                            memblock_x86_hole_size(end, dma32_end) < FAKE_NODE_MIN_SIZE)
+                            mem_hole_size(end, dma32_end) < FAKE_NODE_MIN_SIZE)
                                 end = dma32_end;
 
                         /*
@@ -260,8 +267,7 @@ static int __init split_nodes_size_interleave(struct numa_meminfo *ei,
                          * next node, this one must extend to the end of the
                          * physical node.
                          */
-                        if (limit - end -
-                            memblock_x86_hole_size(end, limit) < size)
+                        if (limit - end - mem_hole_size(end, limit) < size)
                                 end = limit;
 
                         ret = emu_setup_memblk(ei, pi, nid++ % MAX_NUMNODES,
@@ -351,11 +357,11 @@ void __init numa_emulation(struct numa_meminfo *numa_meminfo, int numa_dist_cnt)
 
                 phys = memblock_find_in_range(0, PFN_PHYS(max_pfn_mapped),
                                               phys_size, PAGE_SIZE);
-                if (phys == MEMBLOCK_ERROR) {
+                if (!phys) {
                         pr_warning("NUMA: Warning: can't allocate copy of distance table, disabling emulation\n");
                         goto no_emu;
                 }
-                memblock_x86_reserve_range(phys, phys + phys_size, "TMP NUMA DIST");
+                memblock_reserve(phys, phys_size);
                 phys_dist = __va(phys);
 
                 for (i = 0; i < numa_dist_cnt; i++)
@@ -424,7 +430,7 @@ void __init numa_emulation(struct numa_meminfo *numa_meminfo, int numa_dist_cnt)
 
         /* free the copied physical distance table */
         if (phys_dist)
-                memblock_x86_free_range(__pa(phys_dist), __pa(phys_dist) + phys_size);
+                memblock_free(__pa(phys_dist), phys_size);
         return;
 
 no_emu:
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 37718f0f053d..4a01967f02e7 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -352,8 +352,7 @@ void __init efi_memblock_x86_reserve_range(void)
                 boot_params.efi_info.efi_memdesc_size;
         memmap.desc_version = boot_params.efi_info.efi_memdesc_version;
         memmap.desc_size = boot_params.efi_info.efi_memdesc_size;
-        memblock_x86_reserve_range(pmap, pmap + memmap.nr_map * memmap.desc_size,
-                      "EFI memmap");
+        memblock_reserve(pmap, memmap.nr_map * memmap.desc_size);
 }
 
 #if EFI_DEBUG
@@ -397,16 +396,14 @@ void __init efi_reserve_boot_services(void)
                 if ((start+size >= virt_to_phys(_text)
                                 && start <= virt_to_phys(_end)) ||
                         !e820_all_mapped(start, start+size, E820_RAM) ||
-                        memblock_x86_check_reserved_size(&start, &size,
-                                                        1<<EFI_PAGE_SHIFT)) {
+                        memblock_is_region_reserved(start, size)) {
                         /* Could not reserve, skip it */
                         md->num_pages = 0;
                         memblock_dbg(PFX "Could not reserve boot range "
                                         "[0x%010llx-0x%010llx]\n",
                                                 start, start+size-1);
                 } else
-                        memblock_x86_reserve_range(start, start+size,
-                                                        "EFI Boot");
+                        memblock_reserve(start, size);
         }
 }
 
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 1f928659c338..12eb07bfb267 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1215,8 +1215,6 @@ asmlinkage void __init xen_start_kernel(void)
         local_irq_disable();
         early_boot_irqs_disabled = true;
 
-        memblock_init();
-
         xen_raw_console_write("mapping kernel into physical memory\n");
         pgd = xen_setup_kernel_pagetable(pgd, xen_start_info->nr_pages);
         xen_ident_map_ISA();
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 87f6673b1207..f4bf8aa574f4 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -1774,10 +1774,8 @@ pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd,
         __xen_write_cr3(true, __pa(pgd));
         xen_mc_issue(PARAVIRT_LAZY_CPU);
 
-        memblock_x86_reserve_range(__pa(xen_start_info->pt_base),
-                      __pa(xen_start_info->pt_base +
-                           xen_start_info->nr_pt_frames * PAGE_SIZE),
-                      "XEN PAGETABLES");
+        memblock_reserve(__pa(xen_start_info->pt_base),
+                         xen_start_info->nr_pt_frames * PAGE_SIZE);
 
         return pgd;
 }
@@ -1853,10 +1851,8 @@ pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd,
                           PFN_DOWN(__pa(initial_page_table)));
         xen_write_cr3(__pa(initial_page_table));
 
-        memblock_x86_reserve_range(__pa(xen_start_info->pt_base),
-                      __pa(xen_start_info->pt_base +
-                           xen_start_info->nr_pt_frames * PAGE_SIZE),
-                      "XEN PAGETABLES");
+        memblock_reserve(__pa(xen_start_info->pt_base),
+                         xen_start_info->nr_pt_frames * PAGE_SIZE));
 
         return initial_page_table;
 }
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index b2c7179fa263..e03c63692176 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -75,7 +75,7 @@ static void __init xen_add_extra_mem(u64 start, u64 size)
         if (i == XEN_EXTRA_MEM_MAX_REGIONS)
                 printk(KERN_WARNING "Warning: not enough extra memory regions\n");
 
-        memblock_x86_reserve_range(start, start + size, "XEN EXTRA");
+        memblock_reserve(start, size);
 
         xen_max_p2m_pfn = PFN_DOWN(start + size);
 
@@ -311,9 +311,8 @@ char * __init xen_memory_setup(void)
          *  - xen_start_info
          * See comment above "struct start_info" in <xen/interface/xen.h>
          */
-        memblock_x86_reserve_range(__pa(xen_start_info->mfn_list),
-                      __pa(xen_start_info->pt_base),
-                        "XEN START INFO");
+        memblock_reserve(__pa(xen_start_info->mfn_list),
+                         xen_start_info->pt_base - xen_start_info->mfn_list);
 
         sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);