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Date: Mon, 15 Aug 2022 08:53:12 -0400
From: Zi Yan <ziy@...dia.com>
To: Mike Rapoport <rppt@...nel.org>
Cc: linux-mm@...ck.org, David Hildenbrand <david@...hat.com>,
Matthew Wilcox <willy@...radead.org>,
Vlastimil Babka <vbabka@...e.cz>,
"Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
Mike Kravetz <mike.kravetz@...cle.com>,
John Hubbard <jhubbard@...dia.com>,
Yang Shi <shy828301@...il.com>,
David Rientjes <rientjes@...gle.com>,
James Houghton <jthoughton@...gle.com>,
linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v2 01/12] arch: mm: rename FORCE_MAX_ZONEORDER to
ARCH_FORCE_MAX_ORDER
On 13 Aug 2022, at 11:36, Mike Rapoport wrote:
> On Thu, Aug 11, 2022 at 07:16:32PM -0400, Zi Yan wrote:
>> From: Zi Yan <ziy@...dia.com>
>>
>> This Kconfig option is used by individual arch to set its desired
>> MAX_ORDER. Rename it to reflect its actual use.
>>
>> Signed-off-by: Zi Yan <ziy@...dia.com>
>> Cc: Vineet Gupta <vgupta@...opsys.com>
>> Cc: Shawn Guo <shawnguo@...nel.org>
>> Cc: Catalin Marinas <catalin.marinas@....com>
>> Cc: Guo Ren <guoren@...nel.org>
>> Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
>> Cc: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
>> Cc: Ley Foon Tan <ley.foon.tan@...el.com>
>> Cc: Michael Ellerman <mpe@...erman.id.au>
>> Cc: Yoshinori Sato <ysato@...rs.sourceforge.jp>
>> Cc: "David S. Miller" <davem@...emloft.net>
>> Cc: Chris Zankel <chris@...kel.net>
>> Cc: linux-snps-arc@...ts.infradead.org
>> Cc: linux-arm-kernel@...ts.infradead.org
>> Cc: linux-oxnas@...ups.io
>> Cc: linux-csky@...r.kernel.org
>> Cc: linux-ia64@...r.kernel.org
>> Cc: linux-m68k@...ts.linux-m68k.org
>> Cc: linux-mips@...r.kernel.org
>> Cc: linuxppc-dev@...ts.ozlabs.org
>> Cc: linux-sh@...r.kernel.org
>> Cc: sparclinux@...r.kernel.org
>> Cc: linux-xtensa@...ux-xtensa.org
>> Cc: linux-mm@...ck.org
>> Cc: linux-kernel@...r.kernel.org
>> ---
>> arch/arc/Kconfig | 2 +-
>> arch/arm/Kconfig | 2 +-
>> arch/arm/configs/imx_v6_v7_defconfig | 2 +-
>> arch/arm/configs/milbeaut_m10v_defconfig | 2 +-
>> arch/arm/configs/oxnas_v6_defconfig | 2 +-
>> arch/arm/configs/sama7_defconfig | 2 +-
>> arch/arm64/Kconfig | 2 +-
>> arch/csky/Kconfig | 2 +-
>> arch/ia64/Kconfig | 2 +-
>> arch/ia64/include/asm/sparsemem.h | 6 +++---
>> arch/m68k/Kconfig.cpu | 2 +-
>> arch/mips/Kconfig | 2 +-
>> arch/nios2/Kconfig | 2 +-
>> arch/powerpc/Kconfig | 2 +-
>> arch/powerpc/configs/85xx/ge_imp3a_defconfig | 2 +-
>> arch/powerpc/configs/fsl-emb-nonhw.config | 2 +-
>> arch/sh/configs/ecovec24_defconfig | 2 +-
>> arch/sh/mm/Kconfig | 2 +-
>> arch/sparc/Kconfig | 2 +-
>> arch/xtensa/Kconfig | 2 +-
>> include/linux/mmzone.h | 4 ++--
>> 21 files changed, 24 insertions(+), 24 deletions(-)
>
> This misses arch/loongarch.
Will add it.
>
> Other than that I think its a good cleanup regardless of the rest of the
> series.
>
> Acked-by: Mike Rapoport <rppt@...ux.ibm.com>
Thanks. I will send this out separately.
>
>>
>> diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
>> index 9e3653253ef2..d9a13ccf89a3 100644
>> --- a/arch/arc/Kconfig
>> +++ b/arch/arc/Kconfig
>> @@ -554,7 +554,7 @@ config ARC_BUILTIN_DTB_NAME
>>
>> endmenu # "ARC Architecture Configuration"
>>
>> -config FORCE_MAX_ZONEORDER
>> +config ARCH_FORCE_MAX_ORDER
>> int "Maximum zone order"
>> default "12" if ARC_HUGEPAGE_16M
>> default "11"
>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
>> index 87badeae3181..e6c8ee56ac52 100644
>> --- a/arch/arm/Kconfig
>> +++ b/arch/arm/Kconfig
>> @@ -1434,7 +1434,7 @@ config ARM_MODULE_PLTS
>> Disabling this is usually safe for small single-platform
>> configurations. If unsure, say y.
>>
>> -config FORCE_MAX_ZONEORDER
>> +config ARCH_FORCE_MAX_ORDER
>> int "Maximum zone order"
>> default "12" if SOC_AM33XX
>> default "9" if SA1111
>> diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig
>> index 01012537a9b9..fb283059daa0 100644
>> --- a/arch/arm/configs/imx_v6_v7_defconfig
>> +++ b/arch/arm/configs/imx_v6_v7_defconfig
>> @@ -31,7 +31,7 @@ CONFIG_SOC_VF610=y
>> CONFIG_SMP=y
>> CONFIG_ARM_PSCI=y
>> CONFIG_HIGHMEM=y
>> -CONFIG_FORCE_MAX_ZONEORDER=14
>> +CONFIG_ARCH_FORCE_MAX_ORDER=14
>> CONFIG_CMDLINE="noinitrd console=ttymxc0,115200"
>> CONFIG_KEXEC=y
>> CONFIG_CPU_FREQ=y
>> diff --git a/arch/arm/configs/milbeaut_m10v_defconfig b/arch/arm/configs/milbeaut_m10v_defconfig
>> index 58810e98de3d..8620061e19a8 100644
>> --- a/arch/arm/configs/milbeaut_m10v_defconfig
>> +++ b/arch/arm/configs/milbeaut_m10v_defconfig
>> @@ -26,7 +26,7 @@ CONFIG_THUMB2_KERNEL=y
>> # CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11 is not set
>> # CONFIG_ARM_PATCH_IDIV is not set
>> CONFIG_HIGHMEM=y
>> -CONFIG_FORCE_MAX_ZONEORDER=12
>> +CONFIG_ARCH_FORCE_MAX_ORDER=12
>> CONFIG_SECCOMP=y
>> CONFIG_KEXEC=y
>> CONFIG_EFI=y
>> diff --git a/arch/arm/configs/oxnas_v6_defconfig b/arch/arm/configs/oxnas_v6_defconfig
>> index 600f78b363dd..5c163a9d1429 100644
>> --- a/arch/arm/configs/oxnas_v6_defconfig
>> +++ b/arch/arm/configs/oxnas_v6_defconfig
>> @@ -12,7 +12,7 @@ CONFIG_ARCH_OXNAS=y
>> CONFIG_MACH_OX820=y
>> CONFIG_SMP=y
>> CONFIG_NR_CPUS=16
>> -CONFIG_FORCE_MAX_ZONEORDER=12
>> +CONFIG_ARCH_FORCE_MAX_ORDER=12
>> CONFIG_SECCOMP=y
>> CONFIG_ARM_APPENDED_DTB=y
>> CONFIG_ARM_ATAG_DTB_COMPAT=y
>> diff --git a/arch/arm/configs/sama7_defconfig b/arch/arm/configs/sama7_defconfig
>> index 0384030d8b25..8b2cf6ddd568 100644
>> --- a/arch/arm/configs/sama7_defconfig
>> +++ b/arch/arm/configs/sama7_defconfig
>> @@ -19,7 +19,7 @@ CONFIG_ATMEL_CLOCKSOURCE_TCB=y
>> # CONFIG_CACHE_L2X0 is not set
>> # CONFIG_ARM_PATCH_IDIV is not set
>> # CONFIG_CPU_SW_DOMAIN_PAN is not set
>> -CONFIG_FORCE_MAX_ZONEORDER=15
>> +CONFIG_ARCH_FORCE_MAX_ORDER=15
>> CONFIG_UACCESS_WITH_MEMCPY=y
>> # CONFIG_ATAGS is not set
>> CONFIG_CMDLINE="console=ttyS0,115200 earlyprintk ignore_loglevel"
>> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
>> index 571cc234d0b3..c6fcd8746f60 100644
>> --- a/arch/arm64/Kconfig
>> +++ b/arch/arm64/Kconfig
>> @@ -1401,7 +1401,7 @@ config XEN
>> help
>> Say Y if you want to run Linux in a Virtual Machine on Xen on ARM64.
>>
>> -config FORCE_MAX_ZONEORDER
>> +config ARCH_FORCE_MAX_ORDER
>> int
>> default "14" if ARM64_64K_PAGES
>> default "12" if ARM64_16K_PAGES
>> diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig
>> index 3cbc2dc62baf..adee6ab36862 100644
>> --- a/arch/csky/Kconfig
>> +++ b/arch/csky/Kconfig
>> @@ -332,7 +332,7 @@ config HIGHMEM
>> select KMAP_LOCAL
>> default y
>>
>> -config FORCE_MAX_ZONEORDER
>> +config ARCH_FORCE_MAX_ORDER
>> int "Maximum zone order"
>> default "11"
>>
>> diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
>> index 26ac8ea15a9e..c6e06cdc738f 100644
>> --- a/arch/ia64/Kconfig
>> +++ b/arch/ia64/Kconfig
>> @@ -200,7 +200,7 @@ config IA64_CYCLONE
>> Say Y here to enable support for IBM EXA Cyclone time source.
>> If you're unsure, answer N.
>>
>> -config FORCE_MAX_ZONEORDER
>> +config ARCH_FORCE_MAX_ORDER
>> int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
>> range 11 17 if !HUGETLB_PAGE
>> default "17" if HUGETLB_PAGE
>> diff --git a/arch/ia64/include/asm/sparsemem.h b/arch/ia64/include/asm/sparsemem.h
>> index 42ed5248fae9..84e8ce387b69 100644
>> --- a/arch/ia64/include/asm/sparsemem.h
>> +++ b/arch/ia64/include/asm/sparsemem.h
>> @@ -11,10 +11,10 @@
>>
>> #define SECTION_SIZE_BITS (30)
>> #define MAX_PHYSMEM_BITS (50)
>> -#ifdef CONFIG_FORCE_MAX_ZONEORDER
>> -#if ((CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) > SECTION_SIZE_BITS)
>> +#ifdef CONFIG_ARCH_FORCE_MAX_ORDER
>> +#if ((CONFIG_ARCH_FORCE_MAX_ORDER - 1 + PAGE_SHIFT) > SECTION_SIZE_BITS)
>> #undef SECTION_SIZE_BITS
>> -#define SECTION_SIZE_BITS (CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT)
>> +#define SECTION_SIZE_BITS (CONFIG_ARCH_FORCE_MAX_ORDER - 1 + PAGE_SHIFT)
>> #endif
>> #endif
>>
>> diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu
>> index e0e9e31339c1..3b2f39508524 100644
>> --- a/arch/m68k/Kconfig.cpu
>> +++ b/arch/m68k/Kconfig.cpu
>> @@ -399,7 +399,7 @@ config SINGLE_MEMORY_CHUNK
>> order" to save memory that could be wasted for unused memory map.
>> Say N if not sure.
>>
>> -config FORCE_MAX_ZONEORDER
>> +config ARCH_FORCE_MAX_ORDER
>> int "Maximum zone order" if ADVANCED
>> depends on !SINGLE_MEMORY_CHUNK
>> default "11"
>> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
>> index ec21f8999249..70d28976a40d 100644
>> --- a/arch/mips/Kconfig
>> +++ b/arch/mips/Kconfig
>> @@ -2140,7 +2140,7 @@ config PAGE_SIZE_64KB
>>
>> endchoice
>>
>> -config FORCE_MAX_ZONEORDER
>> +config ARCH_FORCE_MAX_ORDER
>> int "Maximum zone order"
>> range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
>> default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
>> diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
>> index 4167f1eb4cd8..a582f72104f3 100644
>> --- a/arch/nios2/Kconfig
>> +++ b/arch/nios2/Kconfig
>> @@ -44,7 +44,7 @@ menu "Kernel features"
>>
>> source "kernel/Kconfig.hz"
>>
>> -config FORCE_MAX_ZONEORDER
>> +config ARCH_FORCE_MAX_ORDER
>> int "Maximum zone order"
>> range 9 20
>> default "11"
>> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
>> index 4c466acdc70d..39d71d7701bd 100644
>> --- a/arch/powerpc/Kconfig
>> +++ b/arch/powerpc/Kconfig
>> @@ -845,7 +845,7 @@ config DATA_SHIFT
>> in that case. If PIN_TLB is selected, it must be aligned to 8M as
>> 8M pages will be pinned.
>>
>> -config FORCE_MAX_ZONEORDER
>> +config ARCH_FORCE_MAX_ORDER
>> int "Maximum zone order"
>> range 8 9 if PPC64 && PPC_64K_PAGES
>> default "9" if PPC64 && PPC_64K_PAGES
>> diff --git a/arch/powerpc/configs/85xx/ge_imp3a_defconfig b/arch/powerpc/configs/85xx/ge_imp3a_defconfig
>> index f29c166998af..e7672c186325 100644
>> --- a/arch/powerpc/configs/85xx/ge_imp3a_defconfig
>> +++ b/arch/powerpc/configs/85xx/ge_imp3a_defconfig
>> @@ -30,7 +30,7 @@ CONFIG_PREEMPT=y
>> # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
>> CONFIG_BINFMT_MISC=m
>> CONFIG_MATH_EMULATION=y
>> -CONFIG_FORCE_MAX_ZONEORDER=17
>> +CONFIG_ARCH_FORCE_MAX_ORDER=17
>> CONFIG_PCI=y
>> CONFIG_PCIEPORTBUS=y
>> CONFIG_PCI_MSI=y
>> diff --git a/arch/powerpc/configs/fsl-emb-nonhw.config b/arch/powerpc/configs/fsl-emb-nonhw.config
>> index f14c6dbd7346..ab8a8c4530d9 100644
>> --- a/arch/powerpc/configs/fsl-emb-nonhw.config
>> +++ b/arch/powerpc/configs/fsl-emb-nonhw.config
>> @@ -41,7 +41,7 @@ CONFIG_FIXED_PHY=y
>> CONFIG_FONT_8x16=y
>> CONFIG_FONT_8x8=y
>> CONFIG_FONTS=y
>> -CONFIG_FORCE_MAX_ZONEORDER=13
>> +CONFIG_ARCH_FORCE_MAX_ORDER=13
>> CONFIG_FRAMEBUFFER_CONSOLE=y
>> CONFIG_FRAME_WARN=1024
>> CONFIG_FTL=y
>> diff --git a/arch/sh/configs/ecovec24_defconfig b/arch/sh/configs/ecovec24_defconfig
>> index e699e2e04128..b52e14ccb450 100644
>> --- a/arch/sh/configs/ecovec24_defconfig
>> +++ b/arch/sh/configs/ecovec24_defconfig
>> @@ -8,7 +8,7 @@ CONFIG_MODULES=y
>> CONFIG_MODULE_UNLOAD=y
>> # CONFIG_BLK_DEV_BSG is not set
>> CONFIG_CPU_SUBTYPE_SH7724=y
>> -CONFIG_FORCE_MAX_ZONEORDER=12
>> +CONFIG_ARCH_FORCE_MAX_ORDER=12
>> CONFIG_MEMORY_SIZE=0x10000000
>> CONFIG_FLATMEM_MANUAL=y
>> CONFIG_SH_ECOVEC=y
>> diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
>> index ba569cfb4368..411fdc0901f7 100644
>> --- a/arch/sh/mm/Kconfig
>> +++ b/arch/sh/mm/Kconfig
>> @@ -18,7 +18,7 @@ config PAGE_OFFSET
>> default "0x80000000" if MMU
>> default "0x00000000"
>>
>> -config FORCE_MAX_ZONEORDER
>> +config ARCH_FORCE_MAX_ORDER
>> int "Maximum zone order"
>> range 9 64 if PAGE_SIZE_16KB
>> default "9" if PAGE_SIZE_16KB
>> diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
>> index 1c852bb530ec..4d3d1af90d52 100644
>> --- a/arch/sparc/Kconfig
>> +++ b/arch/sparc/Kconfig
>> @@ -269,7 +269,7 @@ config ARCH_SPARSEMEM_ENABLE
>> config ARCH_SPARSEMEM_DEFAULT
>> def_bool y if SPARC64
>>
>> -config FORCE_MAX_ZONEORDER
>> +config ARCH_FORCE_MAX_ORDER
>> int "Maximum zone order"
>> default "13"
>> help
>> diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
>> index 12ac277282ba..bcb0c5d2abc2 100644
>> --- a/arch/xtensa/Kconfig
>> +++ b/arch/xtensa/Kconfig
>> @@ -771,7 +771,7 @@ config HIGHMEM
>>
>> If unsure, say Y.
>>
>> -config FORCE_MAX_ZONEORDER
>> +config ARCH_FORCE_MAX_ORDER
>> int "Maximum zone order"
>> default "11"
>> help
>> diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
>> index 8f571dc7c524..ca285ed3c6e0 100644
>> --- a/include/linux/mmzone.h
>> +++ b/include/linux/mmzone.h
>> @@ -24,10 +24,10 @@
>> #include <asm/page.h>
>>
>> /* Free memory management - zoned buddy allocator. */
>> -#ifndef CONFIG_FORCE_MAX_ZONEORDER
>> +#ifndef CONFIG_ARCH_FORCE_MAX_ORDER
>> #define MAX_ORDER 11
>> #else
>> -#define MAX_ORDER CONFIG_FORCE_MAX_ZONEORDER
>> +#define MAX_ORDER CONFIG_ARCH_FORCE_MAX_ORDER
>> #endif
>> #define MAX_ORDER_NR_PAGES (1 << (MAX_ORDER - 1))
>>
>> --
>> 2.35.1
>>
>
> --
> Sincerely yours,
> Mike.
--
Best Regards,
Yan, Zi
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