From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7D0F7C11F64 for ; Tue, 29 Jun 2021 02:43:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6A15761D1C for ; Tue, 29 Jun 2021 02:43:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231719AbhF2Cpa (ORCPT ); Mon, 28 Jun 2021 22:45:30 -0400 Received: from mail.kernel.org ([198.145.29.99]:37688 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231332AbhF2Cpa (ORCPT ); Mon, 28 Jun 2021 22:45:30 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 4352461D18; Tue, 29 Jun 2021 02:43:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1624934582; bh=OxqACOcAhfF3BZ8+K5g/sFX9aj2hUsR910/Aa+9ODO0=; h=Date:From:To:Subject:In-Reply-To:From; b=QKbTDVGIRX8Sk63f47z8JELAfjxq4gseu8PTLktZw2HEv9BvnuUKZUHWItirxBY52 fLhQBwCJAFD9S2c0cWqKgLoBCvz4BBPXmdQTT0CDMV4c5tY5eYrD3cnYb1w/ctuwO3 vEa+a/rL4JenKxu1YYpZw04XT5WTgJXa2GPaHd84= Date: Mon, 28 Jun 2021 19:43:01 -0700 From: Andrew Morton To: akpm@linux-foundation.org, arnd@arndb.de, corbet@lwn.net, david@redhat.com, geert@linux-m68k.org, ink@jurassic.park.msu.ru, linux-mm@kvack.org, mattst88@gmail.com, mm-commits@vger.kernel.org, rppt@linux.ibm.com, rth@twiddle.net, torvalds@linux-foundation.org, vgupta@synopsys.com Subject: [patch 187/192] mm: replace CONFIG_NEED_MULTIPLE_NODES with CONFIG_NUMA Message-ID: <20210629024301.ICOHlz5nG%akpm@linux-foundation.org> In-Reply-To: <20210628193256.008961950a714730751c1423@linux-foundation.org> User-Agent: s-nail v14.8.16 Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org From: Mike Rapoport Subject: mm: replace CONFIG_NEED_MULTIPLE_NODES with CONFIG_NUMA After removal of DISCINTIGMEM the NEED_MULTIPLE_NODES and NUMA configuration options are equivalent. Drop CONFIG_NEED_MULTIPLE_NODES and use CONFIG_NUMA instead. Done with $ sed -i 's/CONFIG_NEED_MULTIPLE_NODES/CONFIG_NUMA/' \ $(git grep -wl CONFIG_NEED_MULTIPLE_NODES) $ sed -i 's/NEED_MULTIPLE_NODES/NUMA/' \ $(git grep -wl NEED_MULTIPLE_NODES) with manual tweaks afterwards. [rppt@linux.ibm.com: fix arm boot crash] Link: https://lkml.kernel.org/r/YMj9vHhHOiCVN4BF@linux.ibm.com Link: https://lkml.kernel.org/r/20210608091316.3622-9-rppt@kernel.org Signed-off-by: Mike Rapoport Acked-by: Arnd Bergmann Acked-by: David Hildenbrand Cc: Geert Uytterhoeven Cc: Ivan Kokshaysky Cc: Jonathan Corbet Cc: Matt Turner Cc: Richard Henderson Cc: Vineet Gupta Signed-off-by: Andrew Morton --- arch/arm64/Kconfig | 2 +- arch/ia64/Kconfig | 2 +- arch/mips/Kconfig | 2 +- arch/mips/include/asm/mmzone.h | 2 +- arch/mips/include/asm/page.h | 2 +- arch/mips/mm/init.c | 4 ++-- arch/powerpc/Kconfig | 2 +- arch/powerpc/include/asm/mmzone.h | 4 ++-- arch/powerpc/kernel/setup_64.c | 2 +- arch/powerpc/kernel/smp.c | 2 +- arch/powerpc/kexec/core.c | 4 ++-- arch/powerpc/mm/Makefile | 2 +- arch/powerpc/mm/mem.c | 4 ++-- arch/riscv/Kconfig | 2 +- arch/s390/Kconfig | 2 +- arch/sh/include/asm/mmzone.h | 4 ++-- arch/sh/kernel/topology.c | 2 +- arch/sh/mm/Kconfig | 2 +- arch/sh/mm/init.c | 2 +- arch/sparc/Kconfig | 2 +- arch/sparc/include/asm/mmzone.h | 4 ++-- arch/sparc/kernel/smp_64.c | 2 +- arch/sparc/mm/init_64.c | 12 ++++++------ arch/x86/Kconfig | 2 +- arch/x86/kernel/setup_percpu.c | 6 +++--- arch/x86/mm/init_32.c | 4 ++-- include/asm-generic/topology.h | 2 +- include/linux/memblock.h | 6 +++--- include/linux/mm.h | 4 ++-- include/linux/mmzone.h | 6 +++--- kernel/crash_core.c | 2 +- mm/Kconfig | 9 --------- mm/memblock.c | 8 ++++---- mm/memory.c | 3 +-- mm/page_alloc.c | 6 +++--- mm/sparse.c | 2 +- 36 files changed, 59 insertions(+), 69 deletions(-) --- a/arch/arm64/Kconfig~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/arm64/Kconfig @@ -1035,7 +1035,7 @@ config NODES_SHIFT int "Maximum NUMA Nodes (as a power of 2)" range 1 10 default "4" - depends on NEED_MULTIPLE_NODES + depends on NUMA help Specify the maximum number of NUMA Nodes available on the target system. Increases memory reserved to accommodate various tables. --- a/arch/ia64/Kconfig~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/ia64/Kconfig @@ -302,7 +302,7 @@ config NODES_SHIFT int "Max num nodes shift(3-10)" range 3 10 default "10" - depends on NEED_MULTIPLE_NODES + depends on NUMA help This option specifies the maximum number of nodes in your SSI system. MAX_NUMNODES will be 2^(This value). --- a/arch/mips/include/asm/mmzone.h~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/mips/include/asm/mmzone.h @@ -8,7 +8,7 @@ #include -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA # include #endif --- a/arch/mips/include/asm/page.h~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/mips/include/asm/page.h @@ -239,7 +239,7 @@ static inline int pfn_valid(unsigned lon /* pfn_valid is defined in linux/mmzone.h */ -#elif defined(CONFIG_NEED_MULTIPLE_NODES) +#elif defined(CONFIG_NUMA) #define pfn_valid(pfn) \ ({ \ --- a/arch/mips/Kconfig~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/mips/Kconfig @@ -2867,7 +2867,7 @@ config RANDOMIZE_BASE_MAX_OFFSET config NODES_SHIFT int default "6" - depends on NEED_MULTIPLE_NODES + depends on NUMA config HW_PERF_EVENTS bool "Enable hardware performance counter support for perf events" --- a/arch/mips/mm/init.c~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/mips/mm/init.c @@ -394,7 +394,7 @@ void maar_init(void) } } -#ifndef CONFIG_NEED_MULTIPLE_NODES +#ifndef CONFIG_NUMA void __init paging_init(void) { unsigned long max_zone_pfns[MAX_NR_ZONES]; @@ -473,7 +473,7 @@ void __init mem_init(void) 0x80000000 - 4, KCORE_TEXT); #endif } -#endif /* !CONFIG_NEED_MULTIPLE_NODES */ +#endif /* !CONFIG_NUMA */ void free_init_pages(const char *what, unsigned long begin, unsigned long end) { --- a/arch/powerpc/include/asm/mmzone.h~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/powerpc/include/asm/mmzone.h @@ -18,7 +18,7 @@ * flags field of the struct page */ -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA extern struct pglist_data *node_data[]; /* @@ -41,7 +41,7 @@ u64 memory_hotplug_max(void); #else #define memory_hotplug_max() memblock_end_of_DRAM() -#endif /* CONFIG_NEED_MULTIPLE_NODES */ +#endif /* CONFIG_NUMA */ #ifdef CONFIG_FA_DUMP #define __HAVE_ARCH_RESERVED_KERNEL_PAGES #endif --- a/arch/powerpc/Kconfig~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/powerpc/Kconfig @@ -671,7 +671,7 @@ config NODES_SHIFT int default "8" if PPC64 default "4" - depends on NEED_MULTIPLE_NODES + depends on NUMA config USE_PERCPU_NUMA_NODE_ID def_bool y --- a/arch/powerpc/kernel/setup_64.c~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/powerpc/kernel/setup_64.c @@ -788,7 +788,7 @@ static void * __init pcpu_alloc_bootmem( size_t align) { const unsigned long goal = __pa(MAX_DMA_ADDRESS); -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA int node = early_cpu_to_node(cpu); void *ptr; --- a/arch/powerpc/kernel/smp.c~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/powerpc/kernel/smp.c @@ -1047,7 +1047,7 @@ void __init smp_prepare_cpus(unsigned in zalloc_cpumask_var_node(&per_cpu(cpu_coregroup_map, cpu), GFP_KERNEL, cpu_to_node(cpu)); -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA /* * numa_node_id() works after this. */ --- a/arch/powerpc/kexec/core.c~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/powerpc/kexec/core.c @@ -68,11 +68,11 @@ void machine_kexec_cleanup(struct kimage void arch_crash_save_vmcoreinfo(void) { -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA VMCOREINFO_SYMBOL(node_data); VMCOREINFO_LENGTH(node_data, MAX_NUMNODES); #endif -#ifndef CONFIG_NEED_MULTIPLE_NODES +#ifndef CONFIG_NUMA VMCOREINFO_SYMBOL(contig_page_data); #endif #if defined(CONFIG_PPC64) && defined(CONFIG_SPARSEMEM_VMEMMAP) --- a/arch/powerpc/mm/Makefile~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/powerpc/mm/Makefile @@ -13,7 +13,7 @@ obj-y := fault.o mem.o pgtable.o mmap obj-$(CONFIG_PPC_MMU_NOHASH) += nohash/ obj-$(CONFIG_PPC_BOOK3S_32) += book3s32/ obj-$(CONFIG_PPC_BOOK3S_64) += book3s64/ -obj-$(CONFIG_NEED_MULTIPLE_NODES) += numa.o +obj-$(CONFIG_NUMA) += numa.o obj-$(CONFIG_PPC_MM_SLICES) += slice.o obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o obj-$(CONFIG_NOT_COHERENT_CACHE) += dma-noncoherent.o --- a/arch/powerpc/mm/mem.c~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/powerpc/mm/mem.c @@ -127,7 +127,7 @@ void __ref arch_remove_memory(int nid, u } #endif -#ifndef CONFIG_NEED_MULTIPLE_NODES +#ifndef CONFIG_NUMA void __init mem_topology_setup(void) { max_low_pfn = max_pfn = memblock_end_of_DRAM() >> PAGE_SHIFT; @@ -162,7 +162,7 @@ static int __init mark_nonram_nosave(voi return 0; } -#else /* CONFIG_NEED_MULTIPLE_NODES */ +#else /* CONFIG_NUMA */ static int __init mark_nonram_nosave(void) { return 0; --- a/arch/riscv/Kconfig~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/riscv/Kconfig @@ -332,7 +332,7 @@ config NODES_SHIFT int "Maximum NUMA Nodes (as a power of 2)" range 1 10 default "2" - depends on NEED_MULTIPLE_NODES + depends on NUMA help Specify the maximum number of NUMA Nodes available on the target system. Increases memory reserved to accommodate various tables. --- a/arch/s390/Kconfig~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/s390/Kconfig @@ -475,7 +475,7 @@ config NUMA config NODES_SHIFT int - depends on NEED_MULTIPLE_NODES + depends on NUMA default "1" config SCHED_SMT --- a/arch/sh/include/asm/mmzone.h~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/sh/include/asm/mmzone.h @@ -2,7 +2,7 @@ #ifndef __ASM_SH_MMZONE_H #define __ASM_SH_MMZONE_H -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA #include extern struct pglist_data *node_data[]; @@ -31,7 +31,7 @@ static inline void setup_bootmem_node(int nid, unsigned long start, unsigned long end) { } -#endif /* CONFIG_NEED_MULTIPLE_NODES */ +#endif /* CONFIG_NUMA */ /* Platform specific mem init */ void __init plat_mem_setup(void); --- a/arch/sh/kernel/topology.c~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/sh/kernel/topology.c @@ -46,7 +46,7 @@ static int __init topology_init(void) { int i, ret; -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA for_each_online_node(i) register_one_node(i); #endif --- a/arch/sh/mm/init.c~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/sh/mm/init.c @@ -211,7 +211,7 @@ void __init allocate_pgdat(unsigned int get_pfn_range_for_nid(nid, &start_pfn, &end_pfn); -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA NODE_DATA(nid) = memblock_alloc_try_nid( sizeof(struct pglist_data), SMP_CACHE_BYTES, MEMBLOCK_LOW_LIMIT, --- a/arch/sh/mm/Kconfig~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/sh/mm/Kconfig @@ -120,7 +120,7 @@ config NODES_SHIFT int default "3" if CPU_SUBTYPE_SHX3 default "1" - depends on NEED_MULTIPLE_NODES + depends on NUMA config ARCH_FLATMEM_ENABLE def_bool y --- a/arch/sparc/include/asm/mmzone.h~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/sparc/include/asm/mmzone.h @@ -2,7 +2,7 @@ #ifndef _SPARC64_MMZONE_H #define _SPARC64_MMZONE_H -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA #include @@ -13,6 +13,6 @@ extern struct pglist_data *node_data[]; extern int numa_cpu_lookup_table[]; extern cpumask_t numa_cpumask_lookup_table[]; -#endif /* CONFIG_NEED_MULTIPLE_NODES */ +#endif /* CONFIG_NUMA */ #endif /* _SPARC64_MMZONE_H */ --- a/arch/sparc/Kconfig~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/sparc/Kconfig @@ -265,7 +265,7 @@ config NODES_SHIFT int "Maximum NUMA Nodes (as a power of 2)" range 4 5 if SPARC64 default "5" - depends on NEED_MULTIPLE_NODES + depends on NUMA help Specify the maximum number of NUMA Nodes available on the target system. Increases memory reserved to accommodate various tables. --- a/arch/sparc/kernel/smp_64.c~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/sparc/kernel/smp_64.c @@ -1546,7 +1546,7 @@ static void * __init pcpu_alloc_bootmem( size_t align) { const unsigned long goal = __pa(MAX_DMA_ADDRESS); -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA int node = cpu_to_node(cpu); void *ptr; --- a/arch/sparc/mm/init_64.c~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/sparc/mm/init_64.c @@ -903,7 +903,7 @@ struct node_mem_mask { static struct node_mem_mask node_masks[MAX_NUMNODES]; static int num_node_masks; -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA struct mdesc_mlgroup { u64 node; @@ -1059,7 +1059,7 @@ static void __init allocate_node_data(in { struct pglist_data *p; unsigned long start_pfn, end_pfn; -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA NODE_DATA(nid) = memblock_alloc_node(sizeof(struct pglist_data), SMP_CACHE_BYTES, nid); @@ -1080,7 +1080,7 @@ static void __init allocate_node_data(in static void init_node_masks_nonnuma(void) { -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA int i; #endif @@ -1090,7 +1090,7 @@ static void init_node_masks_nonnuma(void node_masks[0].match = 0; num_node_masks = 1; -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA for (i = 0; i < NR_CPUS; i++) numa_cpu_lookup_table[i] = 0; @@ -1098,7 +1098,7 @@ static void init_node_masks_nonnuma(void #endif } -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA struct pglist_data *node_data[MAX_NUMNODES]; EXPORT_SYMBOL(numa_cpu_lookup_table); @@ -2487,7 +2487,7 @@ int page_in_phys_avail(unsigned long pad static void __init register_page_bootmem_info(void) { -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA int i; for_each_online_node(i) --- a/arch/x86/Kconfig~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/x86/Kconfig @@ -1597,7 +1597,7 @@ config NODES_SHIFT default "10" if MAXSMP default "6" if X86_64 default "3" - depends on NEED_MULTIPLE_NODES + depends on NUMA help Specify the maximum number of NUMA Nodes available on the target system. Increases memory reserved to accommodate various tables. --- a/arch/x86/kernel/setup_percpu.c~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/x86/kernel/setup_percpu.c @@ -66,7 +66,7 @@ EXPORT_SYMBOL(__per_cpu_offset); */ static bool __init pcpu_need_numa(void) { -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA pg_data_t *last = NULL; unsigned int cpu; @@ -101,7 +101,7 @@ static void * __init pcpu_alloc_bootmem( unsigned long align) { const unsigned long goal = __pa(MAX_DMA_ADDRESS); -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA int node = early_cpu_to_node(cpu); void *ptr; @@ -140,7 +140,7 @@ static void __init pcpu_fc_free(void *pt static int __init pcpu_cpu_distance(unsigned int from, unsigned int to) { -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA if (early_cpu_to_node(from) == early_cpu_to_node(to)) return LOCAL_DISTANCE; else --- a/arch/x86/mm/init_32.c~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/arch/x86/mm/init_32.c @@ -651,7 +651,7 @@ void __init find_low_pfn_range(void) highmem_pfn_init(); } -#ifndef CONFIG_NEED_MULTIPLE_NODES +#ifndef CONFIG_NUMA void __init initmem_init(void) { #ifdef CONFIG_HIGHMEM @@ -677,7 +677,7 @@ void __init initmem_init(void) setup_bootmem_allocator(); } -#endif /* !CONFIG_NEED_MULTIPLE_NODES */ +#endif /* !CONFIG_NUMA */ void __init setup_bootmem_allocator(void) { --- a/include/asm-generic/topology.h~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/include/asm-generic/topology.h @@ -45,7 +45,7 @@ #endif #ifndef cpumask_of_node - #ifdef CONFIG_NEED_MULTIPLE_NODES + #ifdef CONFIG_NUMA #define cpumask_of_node(node) ((node) == 0 ? cpu_online_mask : cpu_none_mask) #else #define cpumask_of_node(node) ((void)(node), cpu_online_mask) --- a/include/linux/memblock.h~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/include/linux/memblock.h @@ -50,7 +50,7 @@ struct memblock_region { phys_addr_t base; phys_addr_t size; enum memblock_flags flags; -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA int nid; #endif }; @@ -347,7 +347,7 @@ int __init deferred_page_init_max_thread int memblock_set_node(phys_addr_t base, phys_addr_t size, struct memblock_type *type, int nid); -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA static inline void memblock_set_region_node(struct memblock_region *r, int nid) { r->nid = nid; @@ -366,7 +366,7 @@ static inline int memblock_get_region_no { return 0; } -#endif /* CONFIG_NEED_MULTIPLE_NODES */ +#endif /* CONFIG_NUMA */ /* Flags for memblock allocation APIs */ #define MEMBLOCK_ALLOC_ANYWHERE (~(phys_addr_t)0) --- a/include/linux/mm.h~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/include/linux/mm.h @@ -46,7 +46,7 @@ extern int sysctl_page_lock_unfairness; void init_mm_internals(void); -#ifndef CONFIG_NEED_MULTIPLE_NODES /* Don't use mapnrs, do it properly */ +#ifndef CONFIG_NUMA /* Don't use mapnrs, do it properly */ extern unsigned long max_mapnr; static inline void set_max_mapnr(unsigned long limit) @@ -2460,7 +2460,7 @@ extern void get_pfn_range_for_nid(unsign unsigned long *start_pfn, unsigned long *end_pfn); extern unsigned long find_min_pfn_with_active_regions(void); -#ifndef CONFIG_NEED_MULTIPLE_NODES +#ifndef CONFIG_NUMA static inline int early_pfn_to_nid(unsigned long pfn) { return 0; --- a/include/linux/mmzone.h~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/include/linux/mmzone.h @@ -1043,17 +1043,17 @@ extern int percpu_pagelist_high_fraction extern char numa_zonelist_order[]; #define NUMA_ZONELIST_ORDER_LEN 16 -#ifndef CONFIG_NEED_MULTIPLE_NODES +#ifndef CONFIG_NUMA extern struct pglist_data contig_page_data; #define NODE_DATA(nid) (&contig_page_data) #define NODE_MEM_MAP(nid) mem_map -#else /* CONFIG_NEED_MULTIPLE_NODES */ +#else /* CONFIG_NUMA */ #include -#endif /* !CONFIG_NEED_MULTIPLE_NODES */ +#endif /* !CONFIG_NUMA */ extern struct pglist_data *first_online_pgdat(void); extern struct pglist_data *next_online_pgdat(struct pglist_data *pgdat); --- a/kernel/crash_core.c~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/kernel/crash_core.c @@ -455,7 +455,7 @@ static int __init crash_save_vmcoreinfo_ VMCOREINFO_SYMBOL(_stext); VMCOREINFO_SYMBOL(vmap_area_list); -#ifndef CONFIG_NEED_MULTIPLE_NODES +#ifndef CONFIG_NUMA VMCOREINFO_SYMBOL(mem_map); VMCOREINFO_SYMBOL(contig_page_data); #endif --- a/mm/Kconfig~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/mm/Kconfig @@ -60,15 +60,6 @@ config FLAT_NODE_MEM_MAP depends on !SPARSEMEM # -# Both the NUMA code and DISCONTIGMEM use arrays of pg_data_t's -# to represent different areas of memory. This variable allows -# those dependencies to exist individually. -# -config NEED_MULTIPLE_NODES - def_bool y - depends on NUMA - -# # SPARSEMEM_EXTREME (which is the default) does some bootmem # allocations when sparse_init() is called. If this cannot # be done on your architecture, select this option. However, --- a/mm/memblock.c~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/mm/memblock.c @@ -92,7 +92,7 @@ * system initialization completes. */ -#ifndef CONFIG_NEED_MULTIPLE_NODES +#ifndef CONFIG_NUMA struct pglist_data __refdata contig_page_data; EXPORT_SYMBOL(contig_page_data); #endif @@ -607,7 +607,7 @@ repeat: * area, insert that portion. */ if (rbase > base) { -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA WARN_ON(nid != memblock_get_region_node(rgn)); #endif WARN_ON(flags != rgn->flags); @@ -1205,7 +1205,7 @@ void __init_memblock __next_mem_pfn_rang int __init_memblock memblock_set_node(phys_addr_t base, phys_addr_t size, struct memblock_type *type, int nid) { -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA int start_rgn, end_rgn; int i, ret; @@ -1849,7 +1849,7 @@ static void __init_memblock memblock_dum size = rgn->size; end = base + size - 1; flags = rgn->flags; -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA if (memblock_get_region_node(rgn) != MAX_NUMNODES) snprintf(nid_buf, sizeof(nid_buf), " on node %d", memblock_get_region_node(rgn)); --- a/mm/memory.c~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/mm/memory.c @@ -90,8 +90,7 @@ #warning Unfortunate NUMA and NUMA Balancing config, growing page-frame for last_cpupid. #endif -#ifndef CONFIG_NEED_MULTIPLE_NODES -/* use the per-pgdat data instead for discontigmem - mbligh */ +#ifndef CONFIG_NUMA unsigned long max_mapnr; EXPORT_SYMBOL(max_mapnr); --- a/mm/page_alloc.c~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/mm/page_alloc.c @@ -1634,7 +1634,7 @@ void __free_pages_core(struct page *page __free_pages_ok(page, order, FPI_TO_TAIL | FPI_SKIP_KASAN_POISON); } -#ifdef CONFIG_NEED_MULTIPLE_NODES +#ifdef CONFIG_NUMA /* * During memory init memblocks map pfns to nids. The search is expensive and @@ -1684,7 +1684,7 @@ int __meminit early_pfn_to_nid(unsigned return nid; } -#endif /* CONFIG_NEED_MULTIPLE_NODES */ +#endif /* CONFIG_NUMA */ void __init memblock_free_pages(struct page *page, unsigned long pfn, unsigned int order) @@ -7438,7 +7438,7 @@ static void __ref alloc_node_mem_map(str pr_debug("%s: node %d, pgdat %08lx, node_mem_map %08lx\n", __func__, pgdat->node_id, (unsigned long)pgdat, (unsigned long)pgdat->node_mem_map); -#ifndef CONFIG_NEED_MULTIPLE_NODES +#ifndef CONFIG_NUMA /* * With no DISCONTIG, the global mem_map is just set as node 0's */ --- a/mm/sparse.c~mm-replace-config_need_multiple_nodes-with-config_numa +++ a/mm/sparse.c @@ -346,7 +346,7 @@ size_t mem_section_usage_size(void) static inline phys_addr_t pgdat_to_phys(struct pglist_data *pgdat) { -#ifndef CONFIG_NEED_MULTIPLE_NODES +#ifndef CONFIG_NUMA return __pa_symbol(pgdat); #else return __pa(pgdat); _