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mm: remove CONFIG_HAVE_MEMBLOCK 

All architecures use memblock for early memory management. There is no need
for the CONFIG_HAVE_MEMBLOCK configuration option.

[rppt@linux.vnet.ibm.com: of/fdt: fixup #ifdefs]
  Link: http://lkml.kernel.org/r/20180919103457.GA20545@rapoport-lnx
[rppt@linux.vnet.ibm.com: csky: fixups after bootmem removal]
  Link: http://lkml.kernel.org/r/20180926112744.GC4628@rapoport-lnx
[rppt@linux.vnet.ibm.com: remove stale #else and the code it protects]
  Link: http://lkml.kernel.org/r/1538067825-24835-1-git-send-email-rppt@linux.vnet.ibm.com
Link: http://lkml.kernel.org/r/1536927045-23536-4-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Tested-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Serge Semin <fancer.lancer@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mike Rapoport 2018-10-30 15:07:44 -07:00 committed by Linus Torvalds
parent b4a991ec58
commit aca52c3983
40 changed files with 11 additions and 199 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/alpha/Kconfig
View File

@ -31,7 +31,6 @@ config ALPHA
select ODD_RT_SIGACTION
select OLD_SIGSUSPEND
select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
select HAVE_MEMBLOCK
help
The Alpha is a 64-bit general-purpose processor designed and
marketed by the Digital Equipment Corporation of blessed memory,

1
arch/arc/Kconfig
View File

@ -37,7 +37,6 @@ 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

1
arch/arm/Kconfig
View File

@ -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)

1
arch/arm64/Kconfig
View File

@ -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

1
arch/c6x/Kconfig
View File

@ -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

1
arch/csky/Kconfig
View File

@ -36,7 +36,6 @@ 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 OF

1
arch/csky/kernel/setup.c
View File

@ -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>

4
arch/csky/mm/highmem.c
View File

@ -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));
}

3
arch/csky/mm/init.c
View File

@ -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++) {

1
arch/h8300/Kconfig
View File

@ -15,7 +15,6 @@ config H8300
select OF
select OF_IRQ
select OF_EARLY_FLATTREE
select HAVE_MEMBLOCK
select TIMER_OF
select H8300_TMR8
select HAVE_KERNEL_GZIP

1
arch/hexagon/Kconfig
View File

@ -21,7 +21,6 @@ config HEXAGON
select GENERIC_IRQ_SHOW
select HAVE_ARCH_KGDB
select HAVE_ARCH_TRACEHOOK
select HAVE_MEMBLOCK
select ARCH_DISCARD_MEMBLOCK
select NEED_SG_DMA_LENGTH
select NO_IOPORT_MAP

1
arch/ia64/Kconfig
View File

@ -26,7 +26,6 @@ config IA64
select HAVE_FUNCTION_TRACER
select TTY
select HAVE_ARCH_TRACEHOOK
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_VIRT_CPU_ACCOUNTING
select ARCH_HAS_DMA_MARK_CLEAN

1
arch/m68k/Kconfig
View File

@ -27,7 +27,6 @@ config M68K
select OLD_SIGSUSPEND3
select OLD_SIGACTION
select DMA_DIRECT_OPS if HAS_DMA
select HAVE_MEMBLOCK
select ARCH_DISCARD_MEMBLOCK
config CPU_BIG_ENDIAN

1
arch/microblaze/Kconfig
View File

@ -28,7 +28,6 @@ config MICROBLAZE
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_OPROFILE
select IRQ_DOMAIN

1
arch/mips/Kconfig
View File

@ -60,7 +60,6 @@ config MIPS
select HAVE_IRQ_TIME_ACCOUNTING
select HAVE_KPROBES
select HAVE_KRETPROBES
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_NMI

1
arch/nds32/Kconfig
View File

@ -29,7 +29,6 @@ config NDS32
select HANDLE_DOMAIN_IRQ
select HAVE_ARCH_TRACEHOOK
select HAVE_DEBUG_KMEMLEAK
select HAVE_MEMBLOCK
select HAVE_REGS_AND_STACK_ACCESS_API
select IRQ_DOMAIN
select LOCKDEP_SUPPORT

1
arch/nios2/Kconfig
View File

@ -23,7 +23,6 @@ config NIOS2
select SPARSE_IRQ
select USB_ARCH_HAS_HCD if USB_SUPPORT
select CPU_NO_EFFICIENT_FFS
select HAVE_MEMBLOCK
select ARCH_DISCARD_MEMBLOCK
config GENERIC_CSUM

1
arch/openrisc/Kconfig
View File

@ -12,7 +12,6 @@ config OPENRISC
select OF_EARLY_FLATTREE
select IRQ_DOMAIN
select HANDLE_DOMAIN_IRQ
select HAVE_MEMBLOCK
select GPIOLIB
select HAVE_ARCH_TRACEHOOK
select SPARSE_IRQ

1
arch/parisc/Kconfig
View File

@ -15,7 +15,6 @@ config PARISC
select RTC_CLASS
select RTC_DRV_GENERIC
select INIT_ALL_POSSIBLE
select HAVE_MEMBLOCK
select BUG
select BUILDTIME_EXTABLE_SORT
select HAVE_PERF_EVENTS

1
arch/powerpc/Kconfig
View File

@ -206,7 +206,6 @@ config PPC
select HAVE_KRETPROBES
select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_NMI if PERF_EVENTS || (PPC64 && PPC_BOOK3S)

1
arch/riscv/Kconfig
View File

@ -28,7 +28,6 @@ config RISCV
select GENERIC_STRNLEN_USER
select GENERIC_SMP_IDLE_THREAD
select GENERIC_ATOMIC64 if !64BIT || !RISCV_ISA_A
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_DMA_CONTIGUOUS
select HAVE_FUTEX_CMPXCHG if FUTEX

1
arch/s390/Kconfig
View File

@ -163,7 +163,6 @@ config S390
select HAVE_LIVEPATCH
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_MEMBLOCK_PHYS_MAP
select HAVE_MOD_ARCH_SPECIFIC

1
arch/sh/Kconfig
View File

@ -9,7 +9,6 @@ config SUPERH
select CLKDEV_LOOKUP
select DMA_DIRECT_OPS
select HAVE_IDE if HAS_IOPORT_MAP
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select ARCH_DISCARD_MEMBLOCK
select HAVE_OPROFILE

1
arch/sparc/Kconfig
View File

@ -45,7 +45,6 @@ config SPARC
select LOCKDEP_SMALL if LOCKDEP
select NEED_DMA_MAP_STATE
select NEED_SG_DMA_LENGTH
select HAVE_MEMBLOCK
config SPARC32
def_bool !64BIT

1
arch/um/Kconfig
View File

@ -12,7 +12,6 @@ config UML
select HAVE_UID16
select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_DEBUG_KMEMLEAK
select HAVE_MEMBLOCK
select GENERIC_IRQ_SHOW
select GENERIC_CPU_DEVICES
select GENERIC_CLOCKEVENTS

1
arch/unicore32/Kconfig
View File

@ -5,7 +5,6 @@ config UNICORE32
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select DMA_DIRECT_OPS
select HAVE_MEMBLOCK
select HAVE_GENERIC_DMA_COHERENT
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_BZIP2

1
arch/x86/Kconfig
View File

@ -169,7 +169,6 @@ config X86
select HAVE_KRETPROBES
select HAVE_KVM
select HAVE_LIVEPATCH if X86_64
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_MIXED_BREAKPOINTS_REGS
select HAVE_MOD_ARCH_SPECIFIC

1
arch/xtensa/Kconfig
View File

@ -28,7 +28,6 @@ config XTENSA
select HAVE_FUTEX_CMPXCHG if !MMU
select HAVE_HW_BREAKPOINT if PERF_EVENTS
select HAVE_IRQ_TIME_ACCOUNTING
select HAVE_MEMBLOCK
select HAVE_OPROFILE
select HAVE_PERF_EVENTS
select HAVE_STACKPROTECTOR

21
drivers/of/fdt.c
View File

@ -1115,7 +1115,6 @@ int __init early_init_dt_scan_chosen(unsigned long node, const char *uname,
return 1;
}
#ifdef CONFIG_HAVE_MEMBLOCK
#ifndef MIN_MEMBLOCK_ADDR
#define MIN_MEMBLOCK_ADDR __pa(PAGE_OFFSET)
#endif
@ -1178,26 +1177,6 @@ int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base,
return memblock_reserve(base, size);
}
#else
void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size)
{
WARN_ON(1);
}
int __init __weak early_init_dt_mark_hotplug_memory_arch(u64 base, u64 size)
{
return -ENOSYS;
}
int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base,
phys_addr_t size, bool nomap)
{
pr_err("Reserved memory not supported, ignoring range %pa - %pa%s\n",
&base, &size, nomap ? " (nomap)" : "");
return -ENOSYS;
}
#endif
static void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
{
return memblock_virt_alloc(size, align);

13
drivers/of/of_reserved_mem.c
View File

@ -20,13 +20,12 @@
#include <linux/of_reserved_mem.h>
#include <linux/sort.h>
#include <linux/slab.h>
#include <linux/memblock.h>
#define MAX_RESERVED_REGIONS 32
static struct reserved_mem reserved_mem[MAX_RESERVED_REGIONS];
static int reserved_mem_count;
#if defined(CONFIG_HAVE_MEMBLOCK)
#include <linux/memblock.h>
int __init __weak early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
phys_addr_t align, phys_addr_t start, phys_addr_t end, bool nomap,
phys_addr_t *res_base)
@ -54,16 +53,6 @@ int __init __weak early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
return memblock_remove(base, size);
return 0;
}
#else
int __init __weak early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
phys_addr_t align, phys_addr_t start, phys_addr_t end, bool nomap,
phys_addr_t *res_base)
{
pr_err("Reserved memory not supported, ignoring region 0x%llx%s\n",
size, nomap ? " (nomap)" : "");
return -ENOSYS;
}
#endif
/**
* res_mem_save_node() - save fdt node for second pass initialization

2
drivers/staging/android/ion/Kconfig
View File

@ -1,6 +1,6 @@
menuconfig ION
bool "Ion Memory Manager"
depends on HAVE_MEMBLOCK && HAS_DMA && MMU
depends on HAS_DMA && MMU
select GENERIC_ALLOCATOR
select DMA_SHARED_BUFFER
help

1
fs/pstore/Kconfig
View File

@ -141,7 +141,6 @@ config PSTORE_RAM
tristate "Log panic/oops to a RAM buffer"
depends on PSTORE
depends on HAS_IOMEM
depends on HAVE_MEMBLOCK
select REED_SOLOMON
select REED_SOLOMON_ENC8
select REED_SOLOMON_DEC8

112
include/linux/bootmem.h
View File

@ -132,9 +132,6 @@ extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
#define alloc_bootmem_low_pages_node(pgdat, x) \
__alloc_bootmem_low_node(pgdat, x, PAGE_SIZE, 0)
#if defined(CONFIG_HAVE_MEMBLOCK)
/* FIXME: use MEMBLOCK_ALLOC_* variants here */
#define BOOTMEM_ALLOC_ACCESSIBLE 0
#define BOOTMEM_ALLOC_ANYWHERE (~(phys_addr_t)0)
@ -234,115 +231,6 @@ static inline void __init memblock_free_late(
__memblock_free_late(base, size);
}
#else
#define BOOTMEM_ALLOC_ACCESSIBLE 0
/* Fall back to all the existing bootmem APIs */
static inline void * __init memblock_virt_alloc(
phys_addr_t size, phys_addr_t align)
{
if (!align)
align = SMP_CACHE_BYTES;
return __alloc_bootmem(size, align, BOOTMEM_LOW_LIMIT);
}
static inline void * __init memblock_virt_alloc_raw(
phys_addr_t size, phys_addr_t align)
{
if (!align)
align = SMP_CACHE_BYTES;
return __alloc_bootmem_nopanic(size, align, BOOTMEM_LOW_LIMIT);
}
static inline void * __init memblock_virt_alloc_nopanic(
phys_addr_t size, phys_addr_t align)
{
if (!align)
align = SMP_CACHE_BYTES;
return __alloc_bootmem_nopanic(size, align, BOOTMEM_LOW_LIMIT);
}
static inline void * __init memblock_virt_alloc_low(
phys_addr_t size, phys_addr_t align)
{
if (!align)
align = SMP_CACHE_BYTES;
return __alloc_bootmem_low(size, align, 0);
}
static inline void * __init memblock_virt_alloc_low_nopanic(
phys_addr_t size, phys_addr_t align)
{
if (!align)
align = SMP_CACHE_BYTES;
return __alloc_bootmem_low_nopanic(size, align, 0);
}
static inline void * __init memblock_virt_alloc_from_nopanic(
phys_addr_t size, phys_addr_t align, phys_addr_t min_addr)
{
return __alloc_bootmem_nopanic(size, align, min_addr);
}
static inline void * __init memblock_virt_alloc_node(
phys_addr_t size, int nid)
{
return __alloc_bootmem_node(NODE_DATA(nid), size, SMP_CACHE_BYTES,
BOOTMEM_LOW_LIMIT);
}
static inline void * __init memblock_virt_alloc_node_nopanic(
phys_addr_t size, int nid)
{
return __alloc_bootmem_node_nopanic(NODE_DATA(nid), size,
SMP_CACHE_BYTES,
BOOTMEM_LOW_LIMIT);
}
static inline void * __init memblock_virt_alloc_try_nid(phys_addr_t size,
phys_addr_t align, phys_addr_t min_addr, phys_addr_t max_addr, int nid)
{
return __alloc_bootmem_node_high(NODE_DATA(nid), size, align,
min_addr);
}
static inline void * __init memblock_virt_alloc_try_nid_raw(
phys_addr_t size, phys_addr_t align,
phys_addr_t min_addr, phys_addr_t max_addr, int nid)
{
return ___alloc_bootmem_node_nopanic(NODE_DATA(nid), size, align,
min_addr, max_addr);
}
static inline void * __init memblock_virt_alloc_try_nid_nopanic(
phys_addr_t size, phys_addr_t align,
phys_addr_t min_addr, phys_addr_t max_addr, int nid)
{
return ___alloc_bootmem_node_nopanic(NODE_DATA(nid), size, align,
min_addr, max_addr);
}
static inline void __init memblock_free_early(
phys_addr_t base, phys_addr_t size)
{
free_bootmem(base, size);
}
static inline void __init memblock_free_early_nid(
phys_addr_t base, phys_addr_t size, int nid)
{
free_bootmem_node(NODE_DATA(nid), base, size);
}
static inline void __init memblock_free_late(
phys_addr_t base, phys_addr_t size)
{
free_bootmem_late(base, size);
}
#endif /* defined(CONFIG_HAVE_MEMBLOCK) */
extern void *alloc_large_system_hash(const char *tablename,
unsigned long bucketsize,
unsigned long numentries,

7
include/linux/memblock.h
View File

@ -2,7 +2,6 @@
#define _LINUX_MEMBLOCK_H
#ifdef __KERNEL__
#ifdef CONFIG_HAVE_MEMBLOCK
/*
* Logical memory blocks.
*
@ -440,12 +439,6 @@ static inline void early_memtest(phys_addr_t start, phys_addr_t end)
{
}
#endif
#else
static inline phys_addr_t memblock_alloc(phys_addr_t size, phys_addr_t align)
{
return 0;
}
#endif /* CONFIG_HAVE_MEMBLOCK */
#endif /* __KERNEL__ */

2
include/linux/mm.h
View File

@ -2163,7 +2163,7 @@ extern int __meminit __early_pfn_to_nid(unsigned long pfn,
struct mminit_pfnnid_cache *state);
#endif
#if defined(CONFIG_HAVE_MEMBLOCK) && !defined(CONFIG_FLAT_NODE_MEM_MAP)
#if !defined(CONFIG_FLAT_NODE_MEM_MAP)
void zero_resv_unavail(void);
#else
static inline void zero_resv_unavail(void) {}

3
lib/Kconfig.debug
View File

@ -1292,7 +1292,7 @@ config DEBUG_KOBJECT
depends on DEBUG_KERNEL
help
If you say Y here, some extra kobject debugging messages will be sent
to the syslog.
to the syslog.
config DEBUG_KOBJECT_RELEASE
bool "kobject release debugging"
@ -1980,7 +1980,6 @@ endif # RUNTIME_TESTING_MENU
config MEMTEST
bool "Memtest"
depends on HAVE_MEMBLOCK
---help---
This option adds a kernel parameter 'memtest', which allows memtest
to be set.

5
mm/Kconfig
View File

@ -127,9 +127,6 @@ config SPARSEMEM_VMEMMAP
pfn_to_page and page_to_pfn operations. This is the most
efficient option when sufficient kernel resources are available.
config HAVE_MEMBLOCK
bool
config HAVE_MEMBLOCK_NODE_MAP
bool
@ -478,7 +475,7 @@ config FRONTSWAP
config CMA
bool "Contiguous Memory Allocator"
depends on HAVE_MEMBLOCK && MMU
depends on MMU
select MIGRATION
select MEMORY_ISOLATION
help

2
mm/Makefile
View File

@ -43,11 +43,11 @@ obj-y := filemap.o mempool.o oom_kill.o fadvise.o \
obj-y += init-mm.o
obj-y += nobootmem.o
obj-y += memblock.o
ifdef CONFIG_MMU
obj-$(CONFIG_ADVISE_SYSCALLS) += madvise.o
endif
obj-$(CONFIG_HAVE_MEMBLOCK) += memblock.o
obj-$(CONFIG_SWAP) += page_io.o swap_state.o swapfile.o swap_slots.o
obj-$(CONFIG_FRONTSWAP) += frontswap.o

4
mm/nobootmem.c
View File

@ -23,10 +23,6 @@
#include "internal.h"
#ifndef CONFIG_HAVE_MEMBLOCK
#error CONFIG_HAVE_MEMBLOCK not defined
#endif
#ifndef CONFIG_NEED_MULTIPLE_NODES
struct pglist_data __refdata contig_page_data;
EXPORT_SYMBOL(contig_page_data);

5
mm/page_alloc.c
View File

@ -6508,8 +6508,7 @@ void __init free_area_init_node(int nid, unsigned long *zones_size,
free_area_init_core(pgdat);
}
#if defined(CONFIG_HAVE_MEMBLOCK) && !defined(CONFIG_FLAT_NODE_MEM_MAP)
#if !defined(CONFIG_FLAT_NODE_MEM_MAP)
/*
* Zero all valid struct pages in range [spfn, epfn), return number of struct
* pages zeroed
@ -6569,7 +6568,7 @@ void __init zero_resv_unavail(void)
if (pgcnt)
pr_info("Zeroed struct page in unavailable ranges: %lld pages", pgcnt);
}
#endif /* CONFIG_HAVE_MEMBLOCK && !CONFIG_FLAT_NODE_MEM_MAP */
#endif /* !CONFIG_FLAT_NODE_MEM_MAP */
#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP