Merge branch 'akpm' (patches from Andrew)

Merge more updates from Andrew Morton:

 - the rest of MM

 - lib/bitmap updates

 - hfs updates

 - fatfs updates

 - various other misc things

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (94 commits)
  mm/gup.c: fix __get_user_pages_fast() comment
  mm: Fix warning in insert_pfn()
  memory-hotplug.rst: add some details about locking internals
  powerpc/powernv: hold device_hotplug_lock when calling memtrace_offline_pages()
  powerpc/powernv: hold device_hotplug_lock when calling device_online()
  mm/memory_hotplug: fix online/offline_pages called w.o. mem_hotplug_lock
  mm/memory_hotplug: make add_memory() take the device_hotplug_lock
  mm/memory_hotplug: make remove_memory() take the device_hotplug_lock
  mm/memblock.c: warn if zero alignment was requested
  memblock: stop using implicit alignment to SMP_CACHE_BYTES
  docs/boot-time-mm: remove bootmem documentation
  mm: remove include/linux/bootmem.h
  memblock: replace BOOTMEM_ALLOC_* with MEMBLOCK variants
  mm: remove nobootmem
  memblock: rename __free_pages_bootmem to memblock_free_pages
  memblock: rename free_all_bootmem to memblock_free_all
  memblock: replace free_bootmem_late with memblock_free_late
  memblock: replace free_bootmem{_node} with memblock_free
  mm: nobootmem: remove bootmem allocation APIs
  memblock: replace alloc_bootmem with memblock_alloc
  ...

.mailmap

@@ -160,6 +160,11 @@ Peter Oruba <peter.oruba@amd.com>
 Pratyush Anand <pratyush.anand@gmail.com> <pratyush.anand@st.com>
 Praveen BP <praveenbp@ti.com>
 Qais Yousef <qsyousef@gmail.com> <qais.yousef@imgtec.com>
+Oleksij Rempel <linux@rempel-privat.de> <bug-track@fisher-privat.net>
+Oleksij Rempel <linux@rempel-privat.de> <external.Oleksij.Rempel@de.bosch.com>
+Oleksij Rempel <linux@rempel-privat.de> <fixed-term.Oleksij.Rempel@de.bosch.com>
+Oleksij Rempel <linux@rempel-privat.de> <o.rempel@pengutronix.de>
+Oleksij Rempel <linux@rempel-privat.de> <ore@pengutronix.de>
 Rajesh Shah <rajesh.shah@intel.com>
 Ralf Baechle <ralf@linux-mips.org>
 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>

Documentation/admin-guide/mm/memory-hotplug.rst

@@ -5,7 +5,7 @@ Memory Hotplug
 ==============
 
 :Created:							Jul 28 2007
-:Updated: Add description of notifier of memory hotplug:	Oct 11 2007
+:Updated: Add some details about locking internals:		Aug 20 2018
 
 This document is about memory hotplug including how-to-use and current status.
 Because Memory Hotplug is still under development, contents of this text will
@@ -392,6 +392,46 @@ Need more implementation yet....
  - Notification completion of remove works by OS to firmware.
  - Guard from remove if not yet.
 
+
+Locking Internals
+=================
+
+When adding/removing memory that uses memory block devices (i.e. ordinary RAM),
+the device_hotplug_lock should be held to:
+
+- synchronize against online/offline requests (e.g. via sysfs). This way, memory
+  block devices can only be accessed (.online/.state attributes) by user
+  space once memory has been fully added. And when removing memory, we
+  know nobody is in critical sections.
+- synchronize against CPU hotplug and similar (e.g. relevant for ACPI and PPC)
+
+Especially, there is a possible lock inversion that is avoided using
+device_hotplug_lock when adding memory and user space tries to online that
+memory faster than expected:
+
+- device_online() will first take the device_lock(), followed by
+  mem_hotplug_lock
+- add_memory_resource() will first take the mem_hotplug_lock, followed by
+  the device_lock() (while creating the devices, during bus_add_device()).
+
+As the device is visible to user space before taking the device_lock(), this
+can result in a lock inversion.
+
+onlining/offlining of memory should be done via device_online()/
+device_offline() - to make sure it is properly synchronized to actions
+via sysfs. Holding device_hotplug_lock is advised (to e.g. protect online_type)
+
+When adding/removing/onlining/offlining memory or adding/removing
+heterogeneous/device memory, we should always hold the mem_hotplug_lock in
+write mode to serialise memory hotplug (e.g. access to global/zone
+variables).
+
+In addition, mem_hotplug_lock (in contrast to device_hotplug_lock) in read
+mode allows for a quite efficient get_online_mems/put_online_mems
+implementation, so code accessing memory can protect from that memory
+vanishing.
+
+
 Future Work
 ===========
 

Documentation/core-api/boot-time-mm.rst

@@ -5,54 +5,23 @@ Boot time memory management
 Early system initialization cannot use "normal" memory management
 simply because it is not set up yet. But there is still need to
 allocate memory for various data structures, for instance for the
-physical page allocator. To address this, a specialized allocator
-called the :ref:`Boot Memory Allocator <bootmem>`, or bootmem, was
-introduced. Several years later PowerPC developers added a "Logical
-Memory Blocks" allocator, which was later adopted by other
-architectures and renamed to :ref:`memblock <memblock>`. There is also
-a compatibility layer called `nobootmem` that translates bootmem
-allocation interfaces to memblock calls.
+physical page allocator.
 
-The selection of the early allocator is done using
-``CONFIG_NO_BOOTMEM`` and ``CONFIG_HAVE_MEMBLOCK`` kernel
-configuration options. These options are enabled or disabled
-statically by the architectures' Kconfig files.
-
-* Architectures that rely only on bootmem select
-  ``CONFIG_NO_BOOTMEM=n && CONFIG_HAVE_MEMBLOCK=n``.
-* The users of memblock with the nobootmem compatibility layer set
-  ``CONFIG_NO_BOOTMEM=y && CONFIG_HAVE_MEMBLOCK=y``.
-* And for those that use both memblock and bootmem the configuration
-  includes ``CONFIG_NO_BOOTMEM=n && CONFIG_HAVE_MEMBLOCK=y``.
-
-Whichever allocator is used, it is the responsibility of the
-architecture specific initialization to set it up in
-:c:func:`setup_arch` and tear it down in :c:func:`mem_init` functions.
+A specialized allocator called ``memblock`` performs the
+boot time memory management. The architecture specific initialization
+must set it up in :c:func:`setup_arch` and tear it down in
+:c:func:`mem_init` functions.
 
 Once the early memory management is available it offers a variety of
 functions and macros for memory allocations. The allocation request
 may be directed to the first (and probably the only) node or to a
 particular node in a NUMA system. There are API variants that panic
-when an allocation fails and those that don't. And more recent and
-advanced memblock even allows controlling its own behaviour.
-
-.. _bootmem:
-
-Bootmem
-=======
+when an allocation fails and those that don't.
 
-(mostly stolen from Mel Gorman's "Understanding the Linux Virtual
-Memory Manager" `book`_)
+Memblock also offers a variety of APIs that control its own behaviour.
 
-.. _book: https://www.kernel.org/doc/gorman/
-
-.. kernel-doc:: mm/bootmem.c
-   :doc: bootmem overview
-
-.. _memblock:
-
-Memblock
-========
+Memblock Overview
+=================
 
 .. kernel-doc:: mm/memblock.c
    :doc: memblock overview
@@ -61,26 +30,6 @@ Memblock
 Functions and structures
 ========================
 
-Common API
-----------
-
-The functions that are described in this section are available
-regardless of what early memory manager is enabled.
-
-.. kernel-doc:: mm/nobootmem.c
-
-Bootmem specific API
---------------------
-
-These interfaces available only with bootmem, i.e when ``CONFIG_NO_BOOTMEM=n``
-
-.. kernel-doc:: include/linux/bootmem.h
-.. kernel-doc:: mm/bootmem.c
-   :functions:
-
-Memblock specific API
----------------------
-
 Here is the description of memblock data structures, functions and
 macros. Some of them are actually internal, but since they are
 documented it would be silly to omit them. Besides, reading the

arch/alpha/Kconfig

@@ -31,8 +31,6 @@ config ALPHA
 	select ODD_RT_SIGACTION
 	select OLD_SIGSUSPEND
 	select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
-	select HAVE_MEMBLOCK
-	select NO_BOOTMEM
 	help
 	  The Alpha is a 64-bit general-purpose processor designed and
 	  marketed by the Digital Equipment Corporation of blessed memory,

arch/alpha/include/asm/processor.h

@@ -10,12 +10,6 @@
 
 #include <linux/personality.h>	/* for ADDR_LIMIT_32BIT */
 
-/*
- * Returns current instruction pointer ("program counter").
- */
-#define current_text_addr() \
-  ({ void *__pc; __asm__ ("br %0,.+4" : "=r"(__pc)); __pc; })
-
 /*
  * We have a 42-bit user address space: 4TB user VM...
  */

arch/alpha/kernel/core_apecs.c

@@ -346,7 +346,8 @@ apecs_init_arch(void)
 	 * Window 1 is direct access 1GB at 1GB
 	 * Window 2 is scatter-gather 8MB at 8MB (for isa)
 	 */
-	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0);
+	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+				       SMP_CACHE_BYTES);
 	hose->sg_pci = NULL;
 	__direct_map_base = 0x40000000;
 	__direct_map_size = 0x40000000;

arch/alpha/kernel/core_cia.c

@@ -21,7 +21,7 @@
 #include <linux/pci.h>
 #include <linux/sched.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/ptrace.h>
 #include <asm/mce.h>
@@ -331,7 +331,7 @@ cia_prepare_tbia_workaround(int window)
 	long i;
 
 	/* Use minimal 1K map. */
-	ppte = __alloc_bootmem(CIA_BROKEN_TBIA_SIZE, 32768, 0);
+	ppte = memblock_alloc_from(CIA_BROKEN_TBIA_SIZE, 32768, 0);
 	pte = (virt_to_phys(ppte) >> (PAGE_SHIFT - 1)) | 1;
 
 	for (i = 0; i < CIA_BROKEN_TBIA_SIZE / sizeof(unsigned long); ++i)

arch/alpha/kernel/core_irongate.c

@@ -20,7 +20,6 @@
 #include <linux/sched.h>
 #include <linux/init.h>
 #include <linux/initrd.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 
 #include <asm/ptrace.h>
@@ -234,8 +233,7 @@ albacore_init_arch(void)
 			unsigned long size;
 
 			size = initrd_end - initrd_start;
-			free_bootmem_node(NODE_DATA(0), __pa(initrd_start),
-					  PAGE_ALIGN(size));
+			memblock_free(__pa(initrd_start), PAGE_ALIGN(size));
 			if (!move_initrd(pci_mem))
 				printk("irongate_init_arch: initrd too big "
 				       "(%ldK)\ndisabling initrd\n",

arch/alpha/kernel/core_lca.c

@@ -275,7 +275,8 @@ lca_init_arch(void)
 	 * Note that we do not try to save any of the DMA window CSRs
 	 * before setting them, since we cannot read those CSRs on LCA.
 	 */
-	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0);
+	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+				       SMP_CACHE_BYTES);
 	hose->sg_pci = NULL;
 	__direct_map_base = 0x40000000;
 	__direct_map_size = 0x40000000;

arch/alpha/kernel/core_marvel.c

@@ -18,7 +18,7 @@
 #include <linux/mc146818rtc.h>
 #include <linux/rtc.h>
 #include <linux/module.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/ptrace.h>
 #include <asm/smp.h>
@@ -82,7 +82,7 @@ mk_resource_name(int pe, int port, char *str)
 	char *name;
 	
 	sprintf(tmp, "PCI %s PE %d PORT %d", str, pe, port);
-	name = alloc_bootmem(strlen(tmp) + 1);
+	name = memblock_alloc(strlen(tmp) + 1, SMP_CACHE_BYTES);
 	strcpy(name, tmp);
 
 	return name;
@@ -117,7 +117,7 @@ alloc_io7(unsigned int pe)
 		return NULL;
 	}
 
-	io7 = alloc_bootmem(sizeof(*io7));
+	io7 = memblock_alloc(sizeof(*io7), SMP_CACHE_BYTES);
 	io7->pe = pe;
 	raw_spin_lock_init(&io7->irq_lock);
 

arch/alpha/kernel/core_mcpcia.c

@@ -364,9 +364,11 @@ mcpcia_startup_hose(struct pci_controller *hose)
 	 * Window 1 is scatter-gather (up to) 1GB at 1GB (for pci)
 	 * Window 2 is direct access 2GB at 2GB
 	 */
-	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0);
+	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+				       SMP_CACHE_BYTES);
 	hose->sg_pci = iommu_arena_new(hose, 0x40000000,
-				       size_for_memory(0x40000000), 0);
+				       size_for_memory(0x40000000),
+				       SMP_CACHE_BYTES);
 
 	__direct_map_base = 0x80000000;
 	__direct_map_size = 0x80000000;

arch/alpha/kernel/core_t2.c

@@ -351,7 +351,7 @@ t2_sg_map_window2(struct pci_controller *hose,
 
 	/* Note we can only do 1 SG window, as the other is for direct, so
 	   do an ISA SG area, especially for the floppy. */
-	hose->sg_isa = iommu_arena_new(hose, base, length, 0);
+	hose->sg_isa = iommu_arena_new(hose, base, length, SMP_CACHE_BYTES);
 	hose->sg_pci = NULL;
 
 	temp = (base & 0xfff00000UL) | ((base + length - 1) >> 20);

arch/alpha/kernel/core_titan.c

@@ -16,7 +16,7 @@
 #include <linux/sched.h>
 #include <linux/init.h>
 #include <linux/vmalloc.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/ptrace.h>
 #include <asm/smp.h>
@@ -316,10 +316,12 @@ titan_init_one_pachip_port(titan_pachip_port *port, int index)
 	 * Window 1 is direct access 1GB at 2GB
 	 * Window 2 is scatter-gather 1GB at 3GB
 	 */
-	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0);
+	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+				       SMP_CACHE_BYTES);
 	hose->sg_isa->align_entry = 8; /* 64KB for ISA */
 
-	hose->sg_pci = iommu_arena_new(hose, 0xc0000000, 0x40000000, 0);
+	hose->sg_pci = iommu_arena_new(hose, 0xc0000000, 0x40000000,
+				       SMP_CACHE_BYTES);
 	hose->sg_pci->align_entry = 4; /* Titan caches 4 PTEs at a time */
 
 	port->wsba[0].csr = hose->sg_isa->dma_base | 3;

arch/alpha/kernel/core_tsunami.c

@@ -17,7 +17,7 @@
 #include <linux/pci.h>
 #include <linux/sched.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/ptrace.h>
 #include <asm/smp.h>
@@ -319,12 +319,14 @@ tsunami_init_one_pchip(tsunami_pchip *pchip, int index)
 	 * NOTE: we need the align_entry settings for Acer devices on ES40,
 	 * specifically floppy and IDE when memory is larger than 2GB.
 	 */
-	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0);
+	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+				       SMP_CACHE_BYTES);
 	/* Initially set for 4 PTEs, but will be overridden to 64K for ISA. */
         hose->sg_isa->align_entry = 4;
 
 	hose->sg_pci = iommu_arena_new(hose, 0x40000000,
-				       size_for_memory(0x40000000), 0);
+				       size_for_memory(0x40000000),
+				       SMP_CACHE_BYTES);
         hose->sg_pci->align_entry = 4; /* Tsunami caches 4 PTEs at a time */
 
 	__direct_map_base = 0x80000000;

arch/alpha/kernel/core_wildfire.c

@@ -111,8 +111,10 @@ wildfire_init_hose(int qbbno, int hoseno)
          * ??? We ought to scale window 3 memory.
          *
          */
-        hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0);
-        hose->sg_pci = iommu_arena_new(hose, 0xc0000000, 0x08000000, 0);
+	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+				       SMP_CACHE_BYTES);
+	hose->sg_pci = iommu_arena_new(hose, 0xc0000000, 0x08000000,
+				       SMP_CACHE_BYTES);
 
 	pci = WILDFIRE_pci(qbbno, hoseno);
 

arch/alpha/kernel/pci-noop.c

@@ -7,7 +7,7 @@
 
 #include <linux/pci.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/gfp.h>
 #include <linux/capability.h>
 #include <linux/mm.h>
@@ -33,7 +33,7 @@ alloc_pci_controller(void)
 {
 	struct pci_controller *hose;
 
-	hose = alloc_bootmem(sizeof(*hose));
+	hose = memblock_alloc(sizeof(*hose), SMP_CACHE_BYTES);
 
 	*hose_tail = hose;
 	hose_tail = &hose->next;
@@ -44,7 +44,7 @@ alloc_pci_controller(void)
 struct resource * __init
 alloc_resource(void)
 {
-	return alloc_bootmem(sizeof(struct resource));
+	return memblock_alloc(sizeof(struct resource), SMP_CACHE_BYTES);
 }
 
 SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, bus,

arch/alpha/kernel/pci.c

@@ -18,7 +18,7 @@
 #include <linux/init.h>
 #include <linux/ioport.h>
 #include <linux/kernel.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/module.h>
 #include <linux/cache.h>
 #include <linux/slab.h>
@@ -392,7 +392,7 @@ alloc_pci_controller(void)
 {
 	struct pci_controller *hose;
 
-	hose = alloc_bootmem(sizeof(*hose));
+	hose = memblock_alloc(sizeof(*hose), SMP_CACHE_BYTES);
 
 	*hose_tail = hose;
 	hose_tail = &hose->next;
@@ -403,7 +403,7 @@ alloc_pci_controller(void)
 struct resource * __init
 alloc_resource(void)
 {
-	return alloc_bootmem(sizeof(struct resource));
+	return memblock_alloc(sizeof(struct resource), SMP_CACHE_BYTES);
 }
 
 

arch/alpha/kernel/pci_iommu.c

@@ -7,7 +7,7 @@
 #include <linux/mm.h>
 #include <linux/pci.h>
 #include <linux/gfp.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/export.h>
 #include <linux/scatterlist.h>
 #include <linux/log2.h>
@@ -74,26 +74,26 @@ iommu_arena_new_node(int nid, struct pci_controller *hose, dma_addr_t base,
 
 #ifdef CONFIG_DISCONTIGMEM
 
-	arena = alloc_bootmem_node(NODE_DATA(nid), sizeof(*arena));
+	arena = memblock_alloc_node(sizeof(*arena), align, nid);
 	if (!NODE_DATA(nid) || !arena) {
 		printk("%s: couldn't allocate arena from node %d\n"
 		       "    falling back to system-wide allocation\n",
 		       __func__, nid);
-		arena = alloc_bootmem(sizeof(*arena));
+		arena = memblock_alloc(sizeof(*arena), SMP_CACHE_BYTES);
 	}
 
-	arena->ptes = __alloc_bootmem_node(NODE_DATA(nid), mem_size, align, 0);
+	arena->ptes = memblock_alloc_node(sizeof(*arena), align, nid);
 	if (!NODE_DATA(nid) || !arena->ptes) {
 		printk("%s: couldn't allocate arena ptes from node %d\n"
 		       "    falling back to system-wide allocation\n",
 		       __func__, nid);
-		arena->ptes = __alloc_bootmem(mem_size, align, 0);
+		arena->ptes = memblock_alloc_from(mem_size, align, 0);
 	}
 
 #else /* CONFIG_DISCONTIGMEM */
 
-	arena = alloc_bootmem(sizeof(*arena));
-	arena->ptes = __alloc_bootmem(mem_size, align, 0);
+	arena = memblock_alloc(sizeof(*arena), SMP_CACHE_BYTES);
+	arena->ptes = memblock_alloc_from(mem_size, align, 0);
 
 #endif /* CONFIG_DISCONTIGMEM */
 

arch/alpha/kernel/setup.c

@@ -29,7 +29,6 @@
 #include <linux/string.h>
 #include <linux/ioport.h>
 #include <linux/platform_device.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/pci.h>
 #include <linux/seq_file.h>
@@ -294,7 +293,7 @@ move_initrd(unsigned long mem_limit)
 	unsigned long size;
 
 	size = initrd_end - initrd_start;
-	start = __alloc_bootmem(PAGE_ALIGN(size), PAGE_SIZE, 0);
+	start = memblock_alloc_from(PAGE_ALIGN(size), PAGE_SIZE, 0);
 	if (!start || __pa(start) + size > mem_limit) {
 		initrd_start = initrd_end = 0;
 		return NULL;

arch/alpha/kernel/sys_nautilus.c

@@ -32,7 +32,7 @@
 #include <linux/pci.h>
 #include <linux/init.h>
 #include <linux/reboot.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/bitops.h>
 
 #include <asm/ptrace.h>

arch/alpha/mm/init.c

@@ -19,7 +19,7 @@
 #include <linux/mm.h>
 #include <linux/swap.h>
 #include <linux/init.h>
-#include <linux/bootmem.h> /* max_low_pfn */
+#include <linux/memblock.h> /* max_low_pfn */
 #include <linux/vmalloc.h>
 #include <linux/gfp.h>
 
@@ -282,7 +282,7 @@ mem_init(void)
 {
 	set_max_mapnr(max_low_pfn);
 	high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
-	free_all_bootmem();
+	memblock_free_all();
 	mem_init_print_info(NULL);
 }
 

arch/alpha/mm/numa.c

@@ -10,7 +10,6 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/swap.h>
 #include <linux/initrd.h>

arch/arc/Kconfig

@@ -37,14 +37,12 @@ config ARC
 	select HAVE_KERNEL_LZMA
 	select HAVE_KPROBES
 	select HAVE_KRETPROBES
-	select HAVE_MEMBLOCK
 	select HAVE_MOD_ARCH_SPECIFIC
 	select HAVE_OPROFILE
 	select HAVE_PERF_EVENTS
 	select HANDLE_DOMAIN_IRQ
 	select IRQ_DOMAIN
 	select MODULES_USE_ELF_RELA
-	select NO_BOOTMEM
 	select OF
 	select OF_EARLY_FLATTREE
 	select OF_RESERVED_MEM

arch/arc/include/asm/processor.h

@@ -98,14 +98,6 @@ extern void start_thread(struct pt_regs * regs, unsigned long pc,
 
 extern unsigned int get_wchan(struct task_struct *p);
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- * Should the PC register be read instead ? This macro does not seem to
- * be used in many places so this wont be all that bad.
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l; })
-
 #endif /* !__ASSEMBLY__ */
 
 /*

arch/arc/kernel/unwind.c

@@ -15,7 +15,7 @@
 
 #include <linux/sched.h>
 #include <linux/module.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/sort.h>
 #include <linux/slab.h>
 #include <linux/stop_machine.h>
@@ -181,8 +181,8 @@ static void init_unwind_hdr(struct unwind_table *table,
  */
 static void *__init unw_hdr_alloc_early(unsigned long sz)
 {
-	return __alloc_bootmem_nopanic(sz, sizeof(unsigned int),
-				       MAX_DMA_ADDRESS);
+	return memblock_alloc_from_nopanic(sz, sizeof(unsigned int),
+					   MAX_DMA_ADDRESS);
 }
 
 static void *unw_hdr_alloc(unsigned long sz)

arch/arc/mm/highmem.c

@@ -7,7 +7,7 @@
  *
  */
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/export.h>
 #include <linux/highmem.h>
 #include <asm/processor.h>
@@ -123,7 +123,7 @@ static noinline pte_t * __init alloc_kmap_pgtable(unsigned long kvaddr)
 	pud_k = pud_offset(pgd_k, kvaddr);
 	pmd_k = pmd_offset(pud_k, kvaddr);
 
-	pte_k = (pte_t *)alloc_bootmem_low_pages(PAGE_SIZE);
+	pte_k = (pte_t *)memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
 	pmd_populate_kernel(&init_mm, pmd_k, pte_k);
 	return pte_k;
 }

arch/arc/mm/init.c

@@ -8,7 +8,6 @@
 
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #ifdef CONFIG_BLK_DEV_INITRD
 #include <linux/initrd.h>
@@ -218,7 +217,7 @@ void __init mem_init(void)
 		free_highmem_page(pfn_to_page(tmp));
 #endif
 
-	free_all_bootmem();
+	memblock_free_all();
 	mem_init_print_info(NULL);
 }
 

arch/arm/Kconfig

@@ -82,7 +82,6 @@ config ARM
 	select HAVE_KERNEL_XZ
 	select HAVE_KPROBES if !XIP_KERNEL && !CPU_ENDIAN_BE32 && !CPU_V7M
 	select HAVE_KRETPROBES if (HAVE_KPROBES)
-	select HAVE_MEMBLOCK
 	select HAVE_MOD_ARCH_SPECIFIC
 	select HAVE_NMI
 	select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
@@ -100,7 +99,6 @@ config ARM
 	select IRQ_FORCED_THREADING
 	select MODULES_USE_ELF_REL
 	select NEED_DMA_MAP_STATE
-	select NO_BOOTMEM
 	select OF_EARLY_FLATTREE if OF
 	select OF_RESERVED_MEM if OF
 	select OLD_SIGACTION

arch/arm/include/asm/processor.h

@@ -11,12 +11,6 @@
 #ifndef __ASM_ARM_PROCESSOR_H
 #define __ASM_ARM_PROCESSOR_H
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l;})
-
 #ifdef __KERNEL__
 
 #include <asm/hw_breakpoint.h>

arch/arm/kernel/devtree.c

@@ -12,7 +12,6 @@
 #include <linux/export.h>
 #include <linux/errno.h>
 #include <linux/types.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/of.h>
 #include <linux/of_fdt.h>

arch/arm/kernel/setup.c

@@ -16,7 +16,6 @@
 #include <linux/utsname.h>
 #include <linux/initrd.h>
 #include <linux/console.h>
-#include <linux/bootmem.h>
 #include <linux/seq_file.h>
 #include <linux/screen_info.h>
 #include <linux/of_platform.h>
@@ -857,7 +856,7 @@ static void __init request_standard_resources(const struct machine_desc *mdesc)
 		 */
 		boot_alias_start = phys_to_idmap(start);
 		if (arm_has_idmap_alias() && boot_alias_start != IDMAP_INVALID_ADDR) {
-			res = memblock_virt_alloc(sizeof(*res), 0);
+			res = memblock_alloc(sizeof(*res), SMP_CACHE_BYTES);
 			res->name = "System RAM (boot alias)";
 			res->start = boot_alias_start;
 			res->end = phys_to_idmap(end);
@@ -865,7 +864,7 @@ static void __init request_standard_resources(const struct machine_desc *mdesc)
 			request_resource(&iomem_resource, res);
 		}
 
-		res = memblock_virt_alloc(sizeof(*res), 0);
+		res = memblock_alloc(sizeof(*res), SMP_CACHE_BYTES);
 		res->name  = "System RAM";
 		res->start = start;
 		res->end = end;

arch/arm/mach-omap2/omap_hwmod.c

@@ -141,7 +141,7 @@
 #include <linux/cpu.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <linux/platform_data/ti-sysc.h>
 
@@ -726,7 +726,7 @@ static int __init _setup_clkctrl_provider(struct device_node *np)
 	u64 size;
 	int i;
 
-	provider = memblock_virt_alloc(sizeof(*provider), 0);
+	provider = memblock_alloc(sizeof(*provider), SMP_CACHE_BYTES);
 	if (!provider)
 		return -ENOMEM;
 
@@ -736,12 +736,14 @@ static int __init _setup_clkctrl_provider(struct device_node *np)
 		of_property_count_elems_of_size(np, "reg", sizeof(u32)) / 2;
 
 	provider->addr =
-		memblock_virt_alloc(sizeof(void *) * provider->num_addrs, 0);
+		memblock_alloc(sizeof(void *) * provider->num_addrs,
+			       SMP_CACHE_BYTES);
 	if (!provider->addr)
 		return -ENOMEM;
 
 	provider->size =
-		memblock_virt_alloc(sizeof(u32) * provider->num_addrs, 0);
+		memblock_alloc(sizeof(u32) * provider->num_addrs,
+			       SMP_CACHE_BYTES);
 	if (!provider->size)
 		return -ENOMEM;
 

arch/arm/mm/dma-mapping.c

@@ -9,7 +9,6 @@
  *
  *  DMA uncached mapping support.
  */
-#include <linux/bootmem.h>
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/genalloc.h>

arch/arm/mm/init.c

@@ -11,7 +11,6 @@
 #include <linux/errno.h>
 #include <linux/swap.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
 #include <linux/mman.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/task.h>
@@ -508,7 +507,7 @@ void __init mem_init(void)
 
 	/* this will put all unused low memory onto the freelists */
 	free_unused_memmap();
-	free_all_bootmem();
+	memblock_free_all();
 
 #ifdef CONFIG_SA1111
 	/* now that our DMA memory is actually so designated, we can free it */

arch/arm/mm/mmu.c

@@ -721,7 +721,7 @@ EXPORT_SYMBOL(phys_mem_access_prot);
 
 static void __init *early_alloc_aligned(unsigned long sz, unsigned long align)
 {
-	void *ptr = __va(memblock_alloc(sz, align));
+	void *ptr = __va(memblock_phys_alloc(sz, align));
 	memset(ptr, 0, sz);
 	return ptr;
 }

arch/arm/xen/mm.c

@@ -1,6 +1,5 @@
 #include <linux/cpu.h>
 #include <linux/dma-mapping.h>
-#include <linux/bootmem.h>
 #include <linux/gfp.h>
 #include <linux/highmem.h>
 #include <linux/export.h>

arch/arm/xen/p2m.c

@@ -1,4 +1,4 @@
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/gfp.h>
 #include <linux/export.h>
 #include <linux/spinlock.h>

arch/arm64/Kconfig

@@ -139,7 +139,6 @@ config ARM64
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_HW_BREAKPOINT if PERF_EVENTS
 	select HAVE_IRQ_TIME_ACCOUNTING
-	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP if NUMA
 	select HAVE_NMI
 	select HAVE_PATA_PLATFORM
@@ -161,7 +160,6 @@ config ARM64
 	select MULTI_IRQ_HANDLER
 	select NEED_DMA_MAP_STATE
 	select NEED_SG_DMA_LENGTH
-	select NO_BOOTMEM
 	select OF
 	select OF_EARLY_FLATTREE
 	select OF_RESERVED_MEM

arch/arm64/include/asm/processor.h

@@ -25,13 +25,6 @@
 #define USER_DS		(TASK_SIZE_64 - 1)
 
 #ifndef __ASSEMBLY__
-
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l;})
-
 #ifdef __KERNEL__
 
 #include <linux/build_bug.h>

arch/arm64/kernel/acpi.c

@@ -16,7 +16,6 @@
 #define pr_fmt(fmt) "ACPI: " fmt
 
 #include <linux/acpi.h>
-#include <linux/bootmem.h>
 #include <linux/cpumask.h>
 #include <linux/efi.h>
 #include <linux/efi-bgrt.h>

arch/arm64/kernel/acpi_numa.c

@@ -18,7 +18,6 @@
 
 #include <linux/acpi.h>
 #include <linux/bitmap.h>
-#include <linux/bootmem.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/memblock.h>

arch/arm64/kernel/setup.c

@@ -26,7 +26,6 @@
 #include <linux/initrd.h>
 #include <linux/console.h>
 #include <linux/cache.h>
-#include <linux/bootmem.h>
 #include <linux/screen_info.h>
 #include <linux/init.h>
 #include <linux/kexec.h>
@@ -217,8 +216,9 @@ static void __init request_standard_resources(void)
 	kernel_data.end     = __pa_symbol(_end - 1);
 
 	num_standard_resources = memblock.memory.cnt;
-	standard_resources = alloc_bootmem_low(num_standard_resources *
-					       sizeof(*standard_resources));
+	standard_resources = memblock_alloc_low(num_standard_resources *
+					        sizeof(*standard_resources),
+					        SMP_CACHE_BYTES);
 
 	for_each_memblock(memory, region) {
 		res = &standard_resources[i++];

arch/arm64/mm/dma-mapping.c

@@ -19,7 +19,7 @@
 
 #include <linux/gfp.h>
 #include <linux/acpi.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/cache.h>
 #include <linux/export.h>
 #include <linux/slab.h>

arch/arm64/mm/init.c

@@ -22,7 +22,6 @@
 #include <linux/errno.h>
 #include <linux/swap.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
 #include <linux/cache.h>
 #include <linux/mman.h>
 #include <linux/nodemask.h>
@@ -536,7 +535,7 @@ static inline void free_memmap(unsigned long start_pfn, unsigned long end_pfn)
 	 * memmap array.
 	 */
 	if (pg < pgend)
-		free_bootmem(pg, pgend - pg);
+		memblock_free(pg, pgend - pg);
 }
 
 /*
@@ -599,7 +598,7 @@ void __init mem_init(void)
 	free_unused_memmap();
 #endif
 	/* this will put all unused low memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 
 	kexec_reserve_crashkres_pages();
 

arch/arm64/mm/kasan_init.c

@@ -11,7 +11,6 @@
  */
 
 #define pr_fmt(fmt) "kasan: " fmt
-#include <linux/bootmem.h>
 #include <linux/kasan.h>
 #include <linux/kernel.h>
 #include <linux/sched/task.h>
@@ -38,7 +37,7 @@ static pgd_t tmp_pg_dir[PTRS_PER_PGD] __initdata __aligned(PGD_SIZE);
 
 static phys_addr_t __init kasan_alloc_zeroed_page(int node)
 {
-	void *p = memblock_virt_alloc_try_nid(PAGE_SIZE, PAGE_SIZE,
+	void *p = memblock_alloc_try_nid(PAGE_SIZE, PAGE_SIZE,
 					      __pa(MAX_DMA_ADDRESS),
 					      MEMBLOCK_ALLOC_ACCESSIBLE, node);
 	return __pa(p);

arch/arm64/mm/mmu.c

@@ -101,7 +101,7 @@ static phys_addr_t __init early_pgtable_alloc(void)
 	phys_addr_t phys;
 	void *ptr;
 
-	phys = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+	phys = memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE);
 
 	/*
 	 * The FIX_{PGD,PUD,PMD} slots may be in active use, but the FIX_PTE

arch/arm64/mm/numa.c

@@ -20,7 +20,6 @@
 #define pr_fmt(fmt) "NUMA: " fmt
 
 #include <linux/acpi.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/module.h>
 #include <linux/of.h>
@@ -168,7 +167,7 @@ static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size,
 {
 	int nid = early_cpu_to_node(cpu);
 
-	return  memblock_virt_alloc_try_nid(size, align,
+	return  memblock_alloc_try_nid(size, align,
 			__pa(MAX_DMA_ADDRESS), MEMBLOCK_ALLOC_ACCESSIBLE, nid);
 }
 
@@ -237,7 +236,7 @@ static void __init setup_node_data(int nid, u64 start_pfn, u64 end_pfn)
 	if (start_pfn >= end_pfn)
 		pr_info("Initmem setup node %d [<memory-less node>]\n", nid);
 
-	nd_pa = memblock_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
+	nd_pa = memblock_phys_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
 	nd = __va(nd_pa);
 
 	/* report and initialize */

arch/c6x/Kconfig

@@ -13,7 +13,6 @@ config C6X
 	select GENERIC_ATOMIC64
 	select GENERIC_IRQ_SHOW
 	select HAVE_ARCH_TRACEHOOK
-	select HAVE_MEMBLOCK
 	select SPARSE_IRQ
 	select IRQ_DOMAIN
 	select OF

arch/c6x/include/asm/processor.h

@@ -17,17 +17,6 @@
 #include <asm/page.h>
 #include <asm/current.h>
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr()			\
-({						\
-	void *__pc;				\
-	asm("mvc .S2 pce1,%0\n" : "=b"(__pc));	\
-	__pc;					\
-})
-
 /*
  * User space process size. This is mostly meaningless for NOMMU
  * but some C6X processors may have RAM addresses up to 0xFFFFFFFF.

arch/c6x/kernel/setup.c

@@ -11,7 +11,6 @@
 #include <linux/dma-mapping.h>
 #include <linux/memblock.h>
 #include <linux/seq_file.h>
-#include <linux/bootmem.h>
 #include <linux/clkdev.h>
 #include <linux/initrd.h>
 #include <linux/kernel.h>

arch/c6x/mm/dma-coherent.c

@@ -135,8 +135,8 @@ void __init coherent_mem_init(phys_addr_t start, u32 size)
 	if (dma_size & (PAGE_SIZE - 1))
 		++dma_pages;
 
-	bitmap_phys = memblock_alloc(BITS_TO_LONGS(dma_pages) * sizeof(long),
-				     sizeof(long));
+	bitmap_phys = memblock_phys_alloc(BITS_TO_LONGS(dma_pages) * sizeof(long),
+					  sizeof(long));
 
 	dma_bitmap = phys_to_virt(bitmap_phys);
 	memset(dma_bitmap, 0, dma_pages * PAGE_SIZE);

arch/c6x/mm/init.c

@@ -11,7 +11,7 @@
 #include <linux/mm.h>
 #include <linux/swap.h>
 #include <linux/module.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #ifdef CONFIG_BLK_DEV_RAM
 #include <linux/blkdev.h>
 #endif
@@ -38,7 +38,8 @@ void __init paging_init(void)
 	struct pglist_data *pgdat = NODE_DATA(0);
 	unsigned long zones_size[MAX_NR_ZONES] = {0, };
 
-	empty_zero_page      = (unsigned long) alloc_bootmem_pages(PAGE_SIZE);
+	empty_zero_page      = (unsigned long) memblock_alloc(PAGE_SIZE,
+							      PAGE_SIZE);
 	memset((void *)empty_zero_page, 0, PAGE_SIZE);
 
 	/*
@@ -61,7 +62,7 @@ void __init mem_init(void)
 	high_memory = (void *)(memory_end & PAGE_MASK);
 
 	/* this will put all memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 
 	mem_init_print_info(NULL);
 }

arch/csky/Kconfig

@@ -36,10 +36,8 @@ config CSKY
 	select HAVE_C_RECORDMCOUNT
 	select HAVE_DMA_API_DEBUG
 	select HAVE_DMA_CONTIGUOUS
-	select HAVE_MEMBLOCK
 	select MAY_HAVE_SPARSE_IRQ
 	select MODULES_USE_ELF_RELA if MODULES
-	select NO_BOOTMEM
 	select OF
 	select OF_EARLY_FLATTREE
 	select OF_RESERVED_MEM

arch/csky/include/asm/processor.h

@@ -4,12 +4,6 @@
 #ifndef __ASM_CSKY_PROCESSOR_H
 #define __ASM_CSKY_PROCESSOR_H
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l; })
-
 #include <linux/bitops.h>
 #include <asm/segment.h>
 #include <asm/ptrace.h>

arch/csky/kernel/setup.c

@@ -3,7 +3,6 @@
 
 #include <linux/console.h>
 #include <linux/memblock.h>
-#include <linux/bootmem.h>
 #include <linux/initrd.h>
 #include <linux/of.h>
 #include <linux/of_fdt.h>

arch/csky/mm/highmem.c

@@ -4,7 +4,7 @@
 #include <linux/module.h>
 #include <linux/highmem.h>
 #include <linux/smp.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <asm/fixmap.h>
 #include <asm/tlbflush.h>
 #include <asm/cacheflush.h>
@@ -140,7 +140,7 @@ static void __init fixrange_init(unsigned long start, unsigned long end,
 			pmd = (pmd_t *)pud;
 			for (; (k < PTRS_PER_PMD) && (vaddr != end); pmd++, k++) {
 				if (pmd_none(*pmd)) {
-					pte = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+					pte = (pte_t *) memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
 					set_pmd(pmd, __pmd(__pa(pte)));
 					BUG_ON(pte != pte_offset_kernel(pmd, 0));
 				}

arch/csky/mm/init.c

@@ -14,7 +14,6 @@
 #include <linux/ptrace.h>
 #include <linux/mman.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
 #include <linux/highmem.h>
 #include <linux/memblock.h>
 #include <linux/swap.h>
@@ -47,7 +46,7 @@ void __init mem_init(void)
 #endif
 	high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
 
-	free_all_bootmem();
+	memblock_free_all();
 
 #ifdef CONFIG_HIGHMEM
 	for (tmp = highstart_pfn; tmp < highend_pfn; tmp++) {

arch/h8300/Kconfig

@@ -15,8 +15,6 @@ config H8300
 	select OF
 	select OF_IRQ
 	select OF_EARLY_FLATTREE
-	select HAVE_MEMBLOCK
-	select NO_BOOTMEM
 	select TIMER_OF
 	select H8300_TMR8
 	select HAVE_KERNEL_GZIP

arch/h8300/include/asm/processor.h

@@ -12,12 +12,6 @@
 #ifndef __ASM_H8300_PROCESSOR_H
 #define __ASM_H8300_PROCESSOR_H
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l; })
-
 #include <linux/compiler.h>
 #include <asm/segment.h>
 #include <asm/ptrace.h>

arch/h8300/kernel/setup.c

@@ -18,7 +18,6 @@
 #include <linux/console.h>
 #include <linux/errno.h>
 #include <linux/string.h>
-#include <linux/bootmem.h>
 #include <linux/seq_file.h>
 #include <linux/init.h>
 #include <linux/of.h>

arch/h8300/mm/init.c

@@ -30,7 +30,7 @@
 #include <linux/init.h>
 #include <linux/highmem.h>
 #include <linux/pagemap.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/gfp.h>
 
 #include <asm/setup.h>
@@ -67,7 +67,7 @@ void __init paging_init(void)
 	 * Initialize the bad page table and bad page to point
 	 * to a couple of allocated pages.
 	 */
-	empty_zero_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
+	empty_zero_page = (unsigned long)memblock_alloc(PAGE_SIZE, PAGE_SIZE);
 	memset((void *)empty_zero_page, 0, PAGE_SIZE);
 
 	/*
@@ -96,7 +96,7 @@ void __init mem_init(void)
 	max_mapnr = MAP_NR(high_memory);
 
 	/* this will put all low memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 
 	mem_init_print_info(NULL);
 }

arch/hexagon/Kconfig

@@ -21,9 +21,7 @@ config HEXAGON
 	select GENERIC_IRQ_SHOW
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_TRACEHOOK
-	select HAVE_MEMBLOCK
 	select ARCH_DISCARD_MEMBLOCK
-	select NO_BOOTMEM
 	select NEED_SG_DMA_LENGTH
 	select NO_IOPORT_MAP
 	select GENERIC_IOMAP

arch/hexagon/include/asm/processor.h

@@ -27,9 +27,6 @@
 #include <asm/registers.h>
 #include <asm/hexagon_vm.h>
 
-/*  must be a macro  */
-#define current_text_addr() ({ __label__ _l; _l: &&_l; })
-
 /*  task_struct, defined elsewhere, is the "process descriptor" */
 struct task_struct;
 

arch/hexagon/kernel/dma.c

@@ -19,7 +19,7 @@
  */
 
 #include <linux/dma-noncoherent.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/genalloc.h>
 #include <linux/module.h>
 #include <asm/page.h>

arch/hexagon/kernel/setup.c

@@ -20,7 +20,7 @@
 
 #include <linux/init.h>
 #include <linux/delay.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/mmzone.h>
 #include <linux/mm.h>
 #include <linux/seq_file.h>

arch/hexagon/mm/init.c

@@ -20,7 +20,6 @@
 
 #include <linux/init.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <asm/atomic.h>
 #include <linux/highmem.h>
@@ -68,7 +67,7 @@ unsigned long long kmap_generation;
 void __init mem_init(void)
 {
 	/*  No idea where this is actually declared.  Seems to evade LXR.  */
-	free_all_bootmem();
+	memblock_free_all();
 	mem_init_print_info(NULL);
 
 	/*

arch/ia64/Kconfig

@@ -26,9 +26,7 @@ config IA64
 	select HAVE_FUNCTION_TRACER
 	select TTY
 	select HAVE_ARCH_TRACEHOOK
-	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
-	select NO_BOOTMEM
 	select HAVE_VIRT_CPU_ACCOUNTING
 	select ARCH_HAS_DMA_MARK_CLEAN
 	select ARCH_HAS_SG_CHAIN

arch/ia64/include/asm/processor.h

@@ -602,12 +602,6 @@ ia64_set_unat (__u64 *unat, void *spill_addr, unsigned long nat)
 	*unat = (*unat & ~mask) | (nat << bit);
 }
 
-/*
- * Get the current instruction/program counter value.
- */
-#define current_text_addr() \
-	({ void *_pc; _pc = (void *)ia64_getreg(_IA64_REG_IP); _pc; })
-
 static inline __u64
 ia64_get_ivr (void)
 {

arch/ia64/kernel/crash.c

@@ -12,7 +12,7 @@
 #include <linux/smp.h>
 #include <linux/delay.h>
 #include <linux/crash_dump.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/kexec.h>
 #include <linux/elfcore.h>
 #include <linux/sysctl.h>

arch/ia64/kernel/efi.c

@@ -23,7 +23,7 @@
  *	Skip non-WB memory and ignore empty memory ranges.
  */
 #include <linux/module.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/crash_dump.h>
 #include <linux/kernel.h>
 #include <linux/init.h>

arch/ia64/kernel/ia64_ksyms.c

@@ -6,7 +6,7 @@
 #ifdef CONFIG_VIRTUAL_MEM_MAP
 #include <linux/compiler.h>
 #include <linux/export.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 EXPORT_SYMBOL(min_low_pfn);	/* defined by bootmem.c, but not exported by generic code */
 EXPORT_SYMBOL(max_low_pfn);	/* defined by bootmem.c, but not exported by generic code */
 #endif

arch/ia64/kernel/iosapic.c

@@ -90,7 +90,7 @@
 #include <linux/slab.h>
 #include <linux/smp.h>
 #include <linux/string.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/delay.h>
 #include <asm/hw_irq.h>

arch/ia64/kernel/mca.c

@@ -77,7 +77,7 @@
 #include <linux/sched/task.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/acpi.h>
 #include <linux/timer.h>
 #include <linux/module.h>
@@ -361,9 +361,9 @@ static ia64_state_log_t ia64_state_log[IA64_MAX_LOG_TYPES];
 
 #define IA64_LOG_ALLOCATE(it, size) \
 	{ia64_state_log[it].isl_log[IA64_LOG_CURR_INDEX(it)] = \
-		(ia64_err_rec_t *)alloc_bootmem(size); \
+		(ia64_err_rec_t *)memblock_alloc(size, SMP_CACHE_BYTES); \
 	ia64_state_log[it].isl_log[IA64_LOG_NEXT_INDEX(it)] = \
-		(ia64_err_rec_t *)alloc_bootmem(size);}
+		(ia64_err_rec_t *)memblock_alloc(size, SMP_CACHE_BYTES);}
 #define IA64_LOG_LOCK_INIT(it) spin_lock_init(&ia64_state_log[it].isl_lock)
 #define IA64_LOG_LOCK(it)      spin_lock_irqsave(&ia64_state_log[it].isl_lock, s)
 #define IA64_LOG_UNLOCK(it)    spin_unlock_irqrestore(&ia64_state_log[it].isl_lock,s)
@@ -1835,8 +1835,8 @@ format_mca_init_stack(void *mca_data, unsigned long offset,
 /* Caller prevents this from being called after init */
 static void * __ref mca_bootmem(void)
 {
-	return __alloc_bootmem(sizeof(struct ia64_mca_cpu),
-	                    KERNEL_STACK_SIZE, 0);
+	return memblock_alloc_from(sizeof(struct ia64_mca_cpu),
+				   KERNEL_STACK_SIZE, 0);
 }
 
 /* Do per-CPU MCA-related initialization.  */

arch/ia64/kernel/mca_drv.c

@@ -14,7 +14,7 @@
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/kallsyms.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/acpi.h>
 #include <linux/timer.h>
 #include <linux/module.h>

arch/ia64/kernel/setup.c

@@ -27,7 +27,6 @@
 #include <linux/init.h>
 
 #include <linux/acpi.h>
-#include <linux/bootmem.h>
 #include <linux/console.h>
 #include <linux/delay.h>
 #include <linux/cpu.h>

arch/ia64/kernel/signal.c

@@ -344,10 +344,10 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
 		get_signal(&ksig);
 
 		/*
-		 * get_signal_to_deliver() may have run a debugger (via notify_parent())
+		 * get_signal() may have run a debugger (via notify_parent())
 		 * and the debugger may have modified the state (e.g., to arrange for an
 		 * inferior call), thus it's important to check for restarting _after_
-		 * get_signal_to_deliver().
+		 * get_signal().
 		 */
 		if ((long) scr->pt.r10 != -1)
 			/*

arch/ia64/kernel/smpboot.c

@@ -24,7 +24,7 @@
 
 #include <linux/module.h>
 #include <linux/acpi.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/cpu.h>
 #include <linux/delay.h>
 #include <linux/init.h>

arch/ia64/kernel/topology.c

@@ -19,7 +19,7 @@
 #include <linux/node.h>
 #include <linux/slab.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/nodemask.h>
 #include <linux/notifier.h>
 #include <linux/export.h>

arch/ia64/kernel/unwind.c

@@ -28,7 +28,7 @@
  *	  acquired, then the read-write lock must be acquired first.
  */
 #include <linux/module.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/elf.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>

arch/ia64/mm/contig.c

@@ -14,7 +14,6 @@
  * Routines used by ia64 machines with contiguous (or virtually contiguous)
  * memory.
  */
-#include <linux/bootmem.h>
 #include <linux/efi.h>
 #include <linux/memblock.h>
 #include <linux/mm.h>
@@ -85,8 +84,9 @@ skip:
 static inline void
 alloc_per_cpu_data(void)
 {
-	cpu_data = __alloc_bootmem(PERCPU_PAGE_SIZE * num_possible_cpus(),
-				   PERCPU_PAGE_SIZE, __pa(MAX_DMA_ADDRESS));
+	cpu_data = memblock_alloc_from(PERCPU_PAGE_SIZE * num_possible_cpus(),
+				       PERCPU_PAGE_SIZE,
+				       __pa(MAX_DMA_ADDRESS));
 }
 
 /**

arch/ia64/mm/discontig.c

@@ -19,7 +19,6 @@
 #include <linux/mm.h>
 #include <linux/nmi.h>
 #include <linux/swap.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/acpi.h>
 #include <linux/efi.h>
@@ -451,8 +450,10 @@ static void __init *memory_less_node_alloc(int nid, unsigned long pernodesize)
 	if (bestnode == -1)
 		bestnode = anynode;
 
-	ptr = __alloc_bootmem_node(pgdat_list[bestnode], pernodesize,
-		PERCPU_PAGE_SIZE, __pa(MAX_DMA_ADDRESS));
+	ptr = memblock_alloc_try_nid(pernodesize, PERCPU_PAGE_SIZE,
+				     __pa(MAX_DMA_ADDRESS),
+				     MEMBLOCK_ALLOC_ACCESSIBLE,
+				     bestnode);
 
 	return ptr;
 }

arch/ia64/mm/init.c

@@ -8,7 +8,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 
-#include <linux/bootmem.h>
 #include <linux/efi.h>
 #include <linux/elf.h>
 #include <linux/memblock.h>
@@ -447,19 +446,19 @@ int __init create_mem_map_page_table(u64 start, u64 end, void *arg)
 	for (address = start_page; address < end_page; address += PAGE_SIZE) {
 		pgd = pgd_offset_k(address);
 		if (pgd_none(*pgd))
-			pgd_populate(&init_mm, pgd, alloc_bootmem_pages_node(NODE_DATA(node), PAGE_SIZE));
+			pgd_populate(&init_mm, pgd, memblock_alloc_node(PAGE_SIZE, PAGE_SIZE, node));
 		pud = pud_offset(pgd, address);
 
 		if (pud_none(*pud))
-			pud_populate(&init_mm, pud, alloc_bootmem_pages_node(NODE_DATA(node), PAGE_SIZE));
+			pud_populate(&init_mm, pud, memblock_alloc_node(PAGE_SIZE, PAGE_SIZE, node));
 		pmd = pmd_offset(pud, address);
 
 		if (pmd_none(*pmd))
-			pmd_populate_kernel(&init_mm, pmd, alloc_bootmem_pages_node(NODE_DATA(node), PAGE_SIZE));
+			pmd_populate_kernel(&init_mm, pmd, memblock_alloc_node(PAGE_SIZE, PAGE_SIZE, node));
 		pte = pte_offset_kernel(pmd, address);
 
 		if (pte_none(*pte))
-			set_pte(pte, pfn_pte(__pa(alloc_bootmem_pages_node(NODE_DATA(node), PAGE_SIZE)) >> PAGE_SHIFT,
+			set_pte(pte, pfn_pte(__pa(memblock_alloc_node(PAGE_SIZE, PAGE_SIZE, node)) >> PAGE_SHIFT,
 					     PAGE_KERNEL));
 	}
 	return 0;
@@ -627,7 +626,7 @@ mem_init (void)
 
 	set_max_mapnr(max_low_pfn);
 	high_memory = __va(max_low_pfn * PAGE_SIZE);
-	free_all_bootmem();
+	memblock_free_all();
 	mem_init_print_info(NULL);
 
 	/*

arch/ia64/mm/numa.c

@@ -15,7 +15,7 @@
 #include <linux/mm.h>
 #include <linux/node.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/module.h>
 #include <asm/mmzone.h>
 #include <asm/numa.h>

arch/ia64/mm/tlb.c

@@ -21,7 +21,7 @@
 #include <linux/sched.h>
 #include <linux/smp.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/slab.h>
 
 #include <asm/delay.h>
@@ -59,8 +59,10 @@ struct ia64_tr_entry *ia64_idtrs[NR_CPUS];
 void __init
 mmu_context_init (void)
 {
-	ia64_ctx.bitmap = alloc_bootmem((ia64_ctx.max_ctx+1)>>3);
-	ia64_ctx.flushmap = alloc_bootmem((ia64_ctx.max_ctx+1)>>3);
+	ia64_ctx.bitmap = memblock_alloc((ia64_ctx.max_ctx + 1) >> 3,
+					 SMP_CACHE_BYTES);
+	ia64_ctx.flushmap = memblock_alloc((ia64_ctx.max_ctx + 1) >> 3,
+					   SMP_CACHE_BYTES);
 }
 
 /*

arch/ia64/pci/pci.c

@@ -20,7 +20,7 @@
 #include <linux/ioport.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/export.h>
 
 #include <asm/machvec.h>

arch/ia64/sn/kernel/bte.c

@@ -16,7 +16,7 @@
 #include <asm/nodedata.h>
 #include <asm/delay.h>
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/string.h>
 #include <linux/sched.h>
 #include <linux/slab.h>

arch/ia64/sn/kernel/io_common.c

@@ -6,7 +6,7 @@
  * Copyright (C) 2006 Silicon Graphics, Inc. All rights reserved.
  */
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/export.h>
 #include <linux/slab.h>
 #include <asm/sn/types.h>
@@ -385,16 +385,15 @@ void __init hubdev_init_node(nodepda_t * npda, cnodeid_t node)
 {
 	struct hubdev_info *hubdev_info;
 	int size;
-	pg_data_t *pg;
 
 	size = sizeof(struct hubdev_info);
 
 	if (node >= num_online_nodes())	/* Headless/memless IO nodes */
-		pg = NODE_DATA(0);
-	else
-		pg = NODE_DATA(node);
+		node = 0;
 
-	hubdev_info = (struct hubdev_info *)alloc_bootmem_node(pg, size);
+	hubdev_info = (struct hubdev_info *)memblock_alloc_node(size,
+								SMP_CACHE_BYTES,
+								node);
 
 	npda->pdinfo = (void *)hubdev_info;
 }

arch/ia64/sn/kernel/setup.c

@@ -20,7 +20,7 @@
 #include <linux/mm.h>
 #include <linux/serial.h>
 #include <linux/irq.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/mmzone.h>
 #include <linux/interrupt.h>
 #include <linux/acpi.h>
@@ -511,7 +511,8 @@ static void __init sn_init_pdas(char **cmdline_p)
 	 */
 	for_each_online_node(cnode) {
 		nodepdaindr[cnode] =
-		    alloc_bootmem_node(NODE_DATA(cnode), sizeof(nodepda_t));
+		    memblock_alloc_node(sizeof(nodepda_t), SMP_CACHE_BYTES,
+					cnode);
 		memset(nodepdaindr[cnode]->phys_cpuid, -1,
 		    sizeof(nodepdaindr[cnode]->phys_cpuid));
 		spin_lock_init(&nodepdaindr[cnode]->ptc_lock);
@@ -522,7 +523,7 @@ static void __init sn_init_pdas(char **cmdline_p)
 	 */
 	for (cnode = num_online_nodes(); cnode < num_cnodes; cnode++)
 		nodepdaindr[cnode] =
-		    alloc_bootmem_node(NODE_DATA(0), sizeof(nodepda_t));
+		    memblock_alloc_node(sizeof(nodepda_t), SMP_CACHE_BYTES, 0);
 
 	/*
 	 * Now copy the array of nodepda pointers to each nodepda.

arch/m68k/Kconfig

@@ -27,9 +27,7 @@ config M68K
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
 	select DMA_DIRECT_OPS if HAS_DMA
-	select HAVE_MEMBLOCK
 	select ARCH_DISCARD_MEMBLOCK
-	select NO_BOOTMEM
 
 config CPU_BIG_ENDIAN
 	def_bool y

arch/m68k/atari/stram.c

@@ -17,7 +17,7 @@
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/pagemap.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/mount.h>
 #include <linux/blkdev.h>
 #include <linux/module.h>
@@ -95,7 +95,8 @@ void __init atari_stram_reserve_pages(void *start_mem)
 {
 	if (kernel_in_stram) {
 		pr_debug("atari_stram pool: kernel in ST-RAM, using alloc_bootmem!\n");
-		stram_pool.start = (resource_size_t)alloc_bootmem_low_pages(pool_size);
+		stram_pool.start = (resource_size_t)memblock_alloc_low(pool_size,
+								       PAGE_SIZE);
 		stram_pool.end = stram_pool.start + pool_size - 1;
 		request_resource(&iomem_resource, &stram_pool);
 		stram_virt_offset = 0;

arch/m68k/coldfire/m54xx.c

@@ -16,7 +16,7 @@
 #include <linux/io.h>
 #include <linux/mm.h>
 #include <linux/clk.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <asm/pgalloc.h>
 #include <asm/machdep.h>
 #include <asm/coldfire.h>

arch/m68k/include/asm/processor.h

@@ -8,12 +8,6 @@
 #ifndef __ASM_M68K_PROCESSOR_H
 #define __ASM_M68K_PROCESSOR_H
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l;})
-
 #include <linux/thread_info.h>
 #include <asm/segment.h>
 #include <asm/fpu.h>

arch/m68k/kernel/setup_mm.c

@@ -20,7 +20,6 @@
 #include <linux/errno.h>
 #include <linux/string.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>

arch/m68k/kernel/setup_no.c

@@ -27,7 +27,6 @@
 #include <linux/console.h>
 #include <linux/errno.h>
 #include <linux/string.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/seq_file.h>
 #include <linux/init.h>

arch/m68k/kernel/uboot.c

@@ -16,7 +16,7 @@
 #include <linux/console.h>
 #include <linux/errno.h>
 #include <linux/string.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/seq_file.h>
 #include <linux/init.h>
 #include <linux/initrd.h>

arch/m68k/mm/init.c

@@ -17,7 +17,7 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/gfp.h>
 
 #include <asm/setup.h>
@@ -93,7 +93,7 @@ void __init paging_init(void)
 
 	high_memory = (void *) end_mem;
 
-	empty_zero_page = alloc_bootmem_pages(PAGE_SIZE);
+	empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
 
 	/*
 	 * Set up SFC/DFC registers (user data space).
@@ -140,7 +140,7 @@ static inline void init_pointer_tables(void)
 void __init mem_init(void)
 {
 	/* this will put all memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 	init_pointer_tables();
 	mem_init_print_info(NULL);
 }

arch/m68k/mm/mcfmmu.c

@@ -13,7 +13,6 @@
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/string.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 
 #include <asm/setup.h>
@@ -44,7 +43,7 @@ void __init paging_init(void)
 	enum zone_type zone;
 	int i;
 
-	empty_zero_page = (void *) alloc_bootmem_pages(PAGE_SIZE);
+	empty_zero_page = (void *) memblock_alloc(PAGE_SIZE, PAGE_SIZE);
 	memset((void *) empty_zero_page, 0, PAGE_SIZE);
 
 	pg_dir = swapper_pg_dir;
@@ -52,7 +51,7 @@ void __init paging_init(void)
 
 	size = num_pages * sizeof(pte_t);
 	size = (size + PAGE_SIZE) & ~(PAGE_SIZE-1);
-	next_pgtable = (unsigned long) alloc_bootmem_pages(size);
+	next_pgtable = (unsigned long) memblock_alloc(size, PAGE_SIZE);
 
 	bootmem_end = (next_pgtable + size + PAGE_SIZE) & PAGE_MASK;
 	pg_dir += PAGE_OFFSET >> PGDIR_SHIFT;

arch/m68k/mm/motorola.c

@@ -18,7 +18,6 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/gfp.h>
 
@@ -55,7 +54,7 @@ static pte_t * __init kernel_page_table(void)
 {
 	pte_t *ptablep;
 
-	ptablep = (pte_t *)alloc_bootmem_low_pages(PAGE_SIZE);
+	ptablep = (pte_t *)memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
 
 	clear_page(ptablep);
 	__flush_page_to_ram(ptablep);
@@ -95,7 +94,8 @@ static pmd_t * __init kernel_ptr_table(void)
 
 	last_pgtable += PTRS_PER_PMD;
 	if (((unsigned long)last_pgtable & ~PAGE_MASK) == 0) {
-		last_pgtable = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE);
+		last_pgtable = (pmd_t *)memblock_alloc_low(PAGE_SIZE,
+							   PAGE_SIZE);
 
 		clear_page(last_pgtable);
 		__flush_page_to_ram(last_pgtable);
@@ -275,7 +275,7 @@ void __init paging_init(void)
 	 * initialize the bad page table and bad page to point
 	 * to a couple of allocated pages
 	 */
-	empty_zero_page = alloc_bootmem_pages(PAGE_SIZE);
+	empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
 
 	/*
 	 * Set up SFC/DFC registers

arch/m68k/mm/sun3mmu.c

@@ -16,7 +16,7 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/setup.h>
 #include <linux/uaccess.h>
@@ -45,7 +45,7 @@ void __init paging_init(void)
 	unsigned long zones_size[MAX_NR_ZONES] = { 0, };
 	unsigned long size;
 
-	empty_zero_page = alloc_bootmem_pages(PAGE_SIZE);
+	empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
 
 	address = PAGE_OFFSET;
 	pg_dir = swapper_pg_dir;
@@ -55,7 +55,7 @@ void __init paging_init(void)
 	size = num_pages * sizeof(pte_t);
 	size = (size + PAGE_SIZE) & ~(PAGE_SIZE-1);
 
-	next_pgtable = (unsigned long)alloc_bootmem_pages(size);
+	next_pgtable = (unsigned long)memblock_alloc(size, PAGE_SIZE);
 	bootmem_end = (next_pgtable + size + PAGE_SIZE) & PAGE_MASK;
 
 	/* Map whole memory from PAGE_OFFSET (0x0E000000) */

arch/m68k/sun3/config.c

@@ -15,7 +15,7 @@
 #include <linux/tty.h>
 #include <linux/console.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/platform_device.h>
 
 #include <asm/oplib.h>