From: Anshuman Khandual <anshuman.khandual@xxxxxxx> Subject: mm: generalize ARCH_ENABLE_MEMORY_[HOTPLUG|HOTREMOVE] ARCH_ENABLE_MEMORY_[HOTPLUG|HOTREMOVE] configs have duplicate definitions on platforms that subscribe them. Instead, just make them generic options which can be selected on applicable platforms. Link: https://lkml.kernel.org/r/1617259448-22529-4-git-send-email-anshuman.khandual@xxxxxxx Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx> Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx> [arm64] Acked-by: Heiko Carstens <hca@xxxxxxxxxxxxx> [s390] Cc: Will Deacon <will@xxxxxxxxxx> Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> Cc: Paul Mackerras <paulus@xxxxxxxxx> Cc: Vasily Gorbik <gor@xxxxxxxxxxxxx> Cc: Christian Borntraeger <borntraeger@xxxxxxxxxx> Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx> Cc: Rich Felker <dalias@xxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx> Cc: Albert Ou <aou@xxxxxxxxxxxxxxxxx> Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> Cc: Borislav Petkov <bp@xxxxxxxxx> Cc: Helge Deller <deller@xxxxxx> Cc: "James E.J. Bottomley" <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> Cc: Palmer Dabbelt <palmerdabbelt@xxxxxxxxxx> Cc: Paul Walmsley <paul.walmsley@xxxxxxxxxx> Cc: Russell King <linux@xxxxxxxxxxxxxxx> Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx> Cc: Vineet Gupta <vgupta@xxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/arm64/Kconfig | 8 ++------ arch/ia64/Kconfig | 8 ++------ arch/powerpc/Kconfig | 8 ++------ arch/s390/Kconfig | 8 ++------ arch/sh/Kconfig | 2 ++ arch/sh/mm/Kconfig | 8 -------- arch/x86/Kconfig | 10 ++-------- mm/Kconfig | 6 ++++++ 8 files changed, 18 insertions(+), 40 deletions(-) --- a/arch/arm64/Kconfig~mm-generalize-arch_enable_memory_ +++ a/arch/arm64/Kconfig @@ -11,6 +11,8 @@ config ARM64 select ACPI_PPTT if ACPI select ARCH_HAS_DEBUG_WX select ARCH_BINFMT_ELF_STATE + select ARCH_ENABLE_MEMORY_HOTPLUG + select ARCH_ENABLE_MEMORY_HOTREMOVE select ARCH_HAS_CACHE_LINE_SIZE select ARCH_HAS_DEBUG_VIRTUAL select ARCH_HAS_DEBUG_VM_PGTABLE @@ -311,12 +313,6 @@ config ZONE_DMA32 bool "Support DMA32 zone" if EXPERT default y -config ARCH_ENABLE_MEMORY_HOTPLUG - def_bool y - -config ARCH_ENABLE_MEMORY_HOTREMOVE - def_bool y - config SMP def_bool y --- a/arch/ia64/Kconfig~mm-generalize-arch_enable_memory_ +++ a/arch/ia64/Kconfig @@ -13,6 +13,8 @@ config IA64 select ARCH_MIGHT_HAVE_PC_SERIO select ACPI select ACPI_NUMA if NUMA + select ARCH_ENABLE_MEMORY_HOTPLUG + select ARCH_ENABLE_MEMORY_HOTREMOVE select ARCH_SUPPORTS_ACPI select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI @@ -246,12 +248,6 @@ config HOTPLUG_CPU can be controlled through /sys/devices/system/cpu/cpu#. Say N if you want to disable CPU hotplug. -config ARCH_ENABLE_MEMORY_HOTPLUG - def_bool y - -config ARCH_ENABLE_MEMORY_HOTREMOVE - def_bool y - config SCHED_SMT bool "SMT scheduler support" depends on SMP --- a/arch/powerpc/Kconfig~mm-generalize-arch_enable_memory_ +++ a/arch/powerpc/Kconfig @@ -118,6 +118,8 @@ config PPC # Please keep this list sorted alphabetically. # select ARCH_32BIT_OFF_T if PPC32 + select ARCH_ENABLE_MEMORY_HOTPLUG + select ARCH_ENABLE_MEMORY_HOTREMOVE select ARCH_HAS_DEBUG_VIRTUAL select ARCH_HAS_DEVMEM_IS_ALLOWED select ARCH_HAS_ELF_RANDOMIZE @@ -512,12 +514,6 @@ config ARCH_CPU_PROBE_RELEASE def_bool y depends on HOTPLUG_CPU -config ARCH_ENABLE_MEMORY_HOTPLUG - def_bool y - -config ARCH_ENABLE_MEMORY_HOTREMOVE - def_bool y - config PPC64_SUPPORTS_MEMORY_FAILURE bool "Add support for memory hwpoison" depends on PPC_BOOK3S_64 --- a/arch/s390/Kconfig~mm-generalize-arch_enable_memory_ +++ a/arch/s390/Kconfig @@ -60,6 +60,8 @@ config S390 imply IMA_SECURE_AND_OR_TRUSTED_BOOT select ARCH_32BIT_USTAT_F_TINODE select ARCH_BINFMT_ELF_STATE + select ARCH_ENABLE_MEMORY_HOTPLUG if SPARSEMEM + select ARCH_ENABLE_MEMORY_HOTREMOVE select ARCH_HAS_DEBUG_VM_PGTABLE select ARCH_HAS_DEBUG_WX select ARCH_HAS_DEVMEM_IS_ALLOWED @@ -626,12 +628,6 @@ config ARCH_SPARSEMEM_ENABLE config ARCH_SPARSEMEM_DEFAULT def_bool y -config ARCH_ENABLE_MEMORY_HOTPLUG - def_bool y if SPARSEMEM - -config ARCH_ENABLE_MEMORY_HOTREMOVE - def_bool y - config ARCH_ENABLE_SPLIT_PMD_PTLOCK def_bool y --- a/arch/sh/Kconfig~mm-generalize-arch_enable_memory_ +++ a/arch/sh/Kconfig @@ -2,6 +2,8 @@ config SUPERH def_bool y select ARCH_32BIT_OFF_T + select ARCH_ENABLE_MEMORY_HOTPLUG if SPARSEMEM && MMU + select ARCH_ENABLE_MEMORY_HOTREMOVE if SPARSEMEM && MMU select ARCH_HAVE_CUSTOM_GPIO_H select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A) select ARCH_HAS_BINFMT_FLAT if !MMU --- a/arch/sh/mm/Kconfig~mm-generalize-arch_enable_memory_ +++ a/arch/sh/mm/Kconfig @@ -136,14 +136,6 @@ config ARCH_SPARSEMEM_DEFAULT config ARCH_SELECT_MEMORY_MODEL def_bool y -config ARCH_ENABLE_MEMORY_HOTPLUG - def_bool y - depends on SPARSEMEM && MMU - -config ARCH_ENABLE_MEMORY_HOTREMOVE - def_bool y - depends on SPARSEMEM && MMU - config ARCH_MEMORY_PROBE def_bool y depends on MEMORY_HOTPLUG --- a/arch/x86/Kconfig~mm-generalize-arch_enable_memory_ +++ a/arch/x86/Kconfig @@ -60,6 +60,8 @@ config X86 select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI select ARCH_32BIT_OFF_T if X86_32 select ARCH_CLOCKSOURCE_INIT + select ARCH_ENABLE_MEMORY_HOTPLUG if X86_64 || (X86_32 && HIGHMEM) + select ARCH_ENABLE_MEMORY_HOTREMOVE if MEMORY_HOTPLUG select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI select ARCH_HAS_CACHE_LINE_SIZE select ARCH_HAS_DEBUG_VIRTUAL @@ -2427,14 +2429,6 @@ config ARCH_HAS_ADD_PAGES def_bool y depends on X86_64 && ARCH_ENABLE_MEMORY_HOTPLUG -config ARCH_ENABLE_MEMORY_HOTPLUG - def_bool y - depends on X86_64 || (X86_32 && HIGHMEM) - -config ARCH_ENABLE_MEMORY_HOTREMOVE - def_bool y - depends on MEMORY_HOTPLUG - config USE_PERCPU_NUMA_NODE_ID def_bool y depends on NUMA --- a/mm/Kconfig~mm-generalize-arch_enable_memory_ +++ a/mm/Kconfig @@ -148,6 +148,9 @@ config MEMORY_ISOLATION config HAVE_BOOTMEM_INFO_NODE def_bool n +config ARCH_ENABLE_MEMORY_HOTPLUG + bool + # eventually, we can have this option just 'select SPARSEMEM' config MEMORY_HOTPLUG bool "Allow for memory hot-add" @@ -176,6 +179,9 @@ config MEMORY_HOTPLUG_DEFAULT_ONLINE Say N here if you want the default policy to keep all hot-plugged memory blocks in 'offline' state. +config ARCH_ENABLE_MEMORY_HOTREMOVE + bool + config MEMORY_HOTREMOVE bool "Allow for memory hot remove" select HAVE_BOOTMEM_INFO_NODE if (X86_64 || PPC64) _
