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Shutemov" , Mike Kravetz , Michal Hocko , John Hubbard , linux-kernel@vger.kernel.org, Zi Yan , Vineet Gupta , Shawn Guo , Catalin Marinas , Guo Ren , Geert Uytterhoeven , Thomas Bogendoerfer , Ley Foon Tan , Michael Ellerman , Yoshinori Sato , "David S. Miller" , Chris Zankel , linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-oxnas@groups.io, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org Subject: [RFC PATCH 02/15] arch: mm: rename FORCE_MAX_ZONEORDER to ARCH_FORCE_MAX_ORDER Date: Thu, 5 Aug 2021 15:02:40 -0400 Message-Id: <20210805190253.2795604-3-zi.yan@sent.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210805190253.2795604-1-zi.yan@sent.com> References: <20210805190253.2795604-1-zi.yan@sent.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210805_120349_588451_08428AB4 X-CRM114-Status: GOOD ( 14.49 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Zi Yan Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Zi Yan 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 Cc: Vineet Gupta Cc: Shawn Guo Cc: Catalin Marinas Cc: Guo Ren Cc: Geert Uytterhoeven Cc: Thomas Bogendoerfer Cc: Ley Foon Tan Cc: Michael Ellerman Cc: Yoshinori Sato Cc: "David S. Miller" Cc: Chris Zankel Cc: linux-snps-arc@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-oxnas@groups.io Cc: linux-csky@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-mips@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-sh@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: linux-xtensa@linux-xtensa.org Cc: linux-mm@kvack.org Cc: linux-kernel@vger.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(-) diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index b5bf68e74732..923ea4c31e59 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -583,7 +583,7 @@ 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 2fb7012c3246..286854318fe5 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1523,7 +1523,7 @@ 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 079fcd8d1d11..802310d3ebf5 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -34,7 +34,7 @@ CONFIG_PCI_IMX6=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 7c07f9893a0f..06967243f74d 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 cae0db6b4eaf..df8462272446 100644 --- a/arch/arm/configs/oxnas_v6_defconfig +++ b/arch/arm/configs/oxnas_v6_defconfig @@ -17,7 +17,7 @@ CONFIG_MACH_OX820=y CONFIG_SMP=y CONFIG_NR_CPUS=16 CONFIG_CMA=y -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 938aae4bd80b..f8683b87cb27 100644 --- a/arch/arm/configs/sama7_defconfig +++ b/arch/arm/configs/sama7_defconfig @@ -22,7 +22,7 @@ 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 b5b13a932561..972d81f6bb2c 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1152,7 +1152,7 @@ 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 2716f6395ba7..0fd2333226b7 100644 --- a/arch/csky/Kconfig +++ b/arch/csky/Kconfig @@ -307,7 +307,7 @@ 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 4993c7ac7ff6..d1bd010ee7a5 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 29e946394fdb..c39157f3dd87 100644 --- a/arch/m68k/Kconfig.cpu +++ b/arch/m68k/Kconfig.cpu @@ -408,7 +408,7 @@ 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 6dfb27d531dd..0998f671ed7e 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -2284,7 +2284,7 @@ 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 c24955c81c92..e5c300198e1f 100644 --- a/arch/nios2/Kconfig +++ b/arch/nios2/Kconfig @@ -50,7 +50,7 @@ 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 2e213ec6ec05..5edb48b363c4 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -810,7 +810,7 @@ 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 df37efed0aec..521e7a530888 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 03cb916819fa..4c09ca308d43 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 f0c0f955e169..2206c99612ed 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -273,7 +273,7 @@ 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 b843902ad9fd..90784aa68cf8 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -709,7 +709,7 @@ 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 c1d914a72489..98e3297b9e09 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -24,10 +24,10 @@ #include /* 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)) From patchwork Thu Aug 5 19:02:52 2021 Content-Type: text/plain; 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Thu, 5 Aug 2021 15:03:56 -0400 (EDT) From: Zi Yan To: David Hildenbrand , linux-mm@kvack.org Cc: Matthew Wilcox , Vlastimil Babka , "Kirill A . Shutemov" , Mike Kravetz , Michal Hocko , John Hubbard , linux-kernel@vger.kernel.org, Zi Yan , Marc Zyngier , Catalin Marinas , Christoph Lameter , Quentin Perret , linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu Subject: [RFC PATCH 14/15] mm: introduce MIN_MAX_ORDER to replace MAX_ORDER as compile time constant. Date: Thu, 5 Aug 2021 15:02:52 -0400 Message-Id: <20210805190253.2795604-15-zi.yan@sent.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210805190253.2795604-1-zi.yan@sent.com> References: <20210805190253.2795604-1-zi.yan@sent.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210805_120358_051413_B91D29CC X-CRM114-Status: GOOD ( 15.86 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Zi Yan Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Zi Yan For other MAX_ORDER uses (described below), there is no need or too much hassle to convert certain static array to dynamic ones. Add MIN_MAX_ORDER to serve as compile time constant in place of MAX_ORDER. ARM64 hypervisor maintains its own free page list and does not import any core kernel symbols, so soon-to-be runtime variable MAX_ORDER is not accessible in ARM64 hypervisor code. Also there is no need to allocating very large pages. In SLAB/SLOB/SLUB, 2-D array kmalloc_caches uses MAX_ORDER in its second dimension. It is too much hassle to allocate memory for kmalloc_caches before any proper memory allocator is set up. Signed-off-by: Zi Yan Cc: Marc Zyngier Cc: Catalin Marinas Cc: Christoph Lameter Cc: Vlastimil Babka Cc: Quentin Perret Cc: linux-arm-kernel@lists.infradead.org Cc: kvmarm@lists.cs.columbia.edu Cc: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org --- arch/arm64/kvm/hyp/include/nvhe/gfp.h | 2 +- arch/arm64/kvm/hyp/nvhe/page_alloc.c | 3 ++- include/linux/mmzone.h | 3 +++ include/linux/slab.h | 8 ++++---- mm/slab.c | 2 +- mm/slub.c | 7 ++++--- 6 files changed, 15 insertions(+), 10 deletions(-) diff --git a/arch/arm64/kvm/hyp/include/nvhe/gfp.h b/arch/arm64/kvm/hyp/include/nvhe/gfp.h index fb0f523d1492..c774b4a98336 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/gfp.h +++ b/arch/arm64/kvm/hyp/include/nvhe/gfp.h @@ -16,7 +16,7 @@ struct hyp_pool { * API at EL2. */ hyp_spinlock_t lock; - struct list_head free_area[MAX_ORDER]; + struct list_head free_area[MIN_MAX_ORDER]; phys_addr_t range_start; phys_addr_t range_end; unsigned short max_order; diff --git a/arch/arm64/kvm/hyp/nvhe/page_alloc.c b/arch/arm64/kvm/hyp/nvhe/page_alloc.c index 41fc25bdfb34..a1cc1b648de0 100644 --- a/arch/arm64/kvm/hyp/nvhe/page_alloc.c +++ b/arch/arm64/kvm/hyp/nvhe/page_alloc.c @@ -226,7 +226,8 @@ int hyp_pool_init(struct hyp_pool *pool, u64 pfn, unsigned int nr_pages, int i; hyp_spin_lock_init(&pool->lock); - pool->max_order = min(MAX_ORDER, get_order(nr_pages << PAGE_SHIFT)); + + pool->max_order = min(MIN_MAX_ORDER, get_order(nr_pages << PAGE_SHIFT)); for (i = 0; i < pool->max_order; i++) INIT_LIST_HEAD(&pool->free_area[i]); pool->range_start = phys; diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 09aafc05aef4..379dada82d4b 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -27,11 +27,14 @@ #ifndef CONFIG_ARCH_FORCE_MAX_ORDER #ifdef CONFIG_SET_MAX_ORDER #define MAX_ORDER CONFIG_SET_MAX_ORDER +#define MIN_MAX_ORDER CONFIG_SET_MAX_ORDER #else #define MAX_ORDER 11 +#define MIN_MAX_ORDER MAX_ORDER #endif /* CONFIG_SET_MAX_ORDER */ #else #define MAX_ORDER CONFIG_ARCH_FORCE_MAX_ORDER +#define MIN_MAX_ORDER CONFIG_ARCH_FORCE_MAX_ORDER #endif /* CONFIG_ARCH_FORCE_MAX_ORDER */ #define MAX_ORDER_NR_PAGES (1 << (MAX_ORDER - 1)) diff --git a/include/linux/slab.h b/include/linux/slab.h index 2c0d80cca6b8..d8747c158db6 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -244,8 +244,8 @@ static inline void __check_heap_object(const void *ptr, unsigned long n, * to do various tricks to work around compiler limitations in order to * ensure proper constant folding. */ -#define KMALLOC_SHIFT_HIGH ((MAX_ORDER + PAGE_SHIFT - 1) <= 25 ? \ - (MAX_ORDER + PAGE_SHIFT - 1) : 25) +#define KMALLOC_SHIFT_HIGH ((MIN_MAX_ORDER + PAGE_SHIFT - 1) <= 25 ? \ + (MIN_MAX_ORDER + PAGE_SHIFT - 1) : 25) #define KMALLOC_SHIFT_MAX KMALLOC_SHIFT_HIGH #ifndef KMALLOC_SHIFT_LOW #define KMALLOC_SHIFT_LOW 5 @@ -258,7 +258,7 @@ static inline void __check_heap_object(const void *ptr, unsigned long n, * (PAGE_SIZE*2). Larger requests are passed to the page allocator. */ #define KMALLOC_SHIFT_HIGH (PAGE_SHIFT + 1) -#define KMALLOC_SHIFT_MAX (MAX_ORDER + PAGE_SHIFT - 1) +#define KMALLOC_SHIFT_MAX (MIN_MAX_ORDER + PAGE_SHIFT - 1) #ifndef KMALLOC_SHIFT_LOW #define KMALLOC_SHIFT_LOW 3 #endif @@ -271,7 +271,7 @@ static inline void __check_heap_object(const void *ptr, unsigned long n, * be allocated from the same page. */ #define KMALLOC_SHIFT_HIGH PAGE_SHIFT -#define KMALLOC_SHIFT_MAX (MAX_ORDER + PAGE_SHIFT - 1) +#define KMALLOC_SHIFT_MAX (MIN_MAX_ORDER + PAGE_SHIFT - 1) #ifndef KMALLOC_SHIFT_LOW #define KMALLOC_SHIFT_LOW 3 #endif diff --git a/mm/slab.c b/mm/slab.c index d0f725637663..0041de8ec0e9 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -466,7 +466,7 @@ static int __init slab_max_order_setup(char *str) { get_option(&str, &slab_max_order); slab_max_order = slab_max_order < 0 ? 0 : - min(slab_max_order, MAX_ORDER - 1); + min(slab_max_order, MIN_MAX_ORDER - 1); slab_max_order_set = true; return 1; diff --git a/mm/slub.c b/mm/slub.c index b6c5205252eb..228e4a77c678 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -3564,8 +3564,9 @@ static inline int calculate_order(unsigned int size) /* * Doh this slab cannot be placed using slub_max_order. */ - order = slab_order(size, 1, MAX_ORDER, 1); - if (order < MAX_ORDER) + + order = slab_order(size, 1, MIN_MAX_ORDER, 1); + if (order < MIN_MAX_ORDER) return order; return -ENOSYS; } @@ -4079,7 +4080,7 @@ __setup("slub_min_order=", setup_slub_min_order); static int __init setup_slub_max_order(char *str) { get_option(&str, (int *)&slub_max_order); - slub_max_order = min(slub_max_order, (unsigned int)MAX_ORDER - 1); + slub_max_order = min(slub_max_order, (unsigned int)MIN_MAX_ORDER - 1); return 1; }