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Date: Mon, 18 Jul 2011 19:18:29 +0800 From: Amerigo Wang <amwang@...hat.com> To: linux-kernel@...r.kernel.org Cc: akpm@...ux-foundation.org, WANG Cong <amwang@...hat.com>, Andi Kleen <andi@...stfloor.org>, Mel Gorman <mgorman@...e.de>, linux-mm@...ck.org Subject: [Patch] mm: make CONFIG_NUMA depend on CONFIG_SYSFS On ppc, we got this build error with randconfig: drivers/built-in.o:(.toc1+0xf90): undefined reference to `vmstat_text': 1 errors in 1 logs This is due to that it enabled CONFIG_NUMA but not CONFIG_SYSFS. And the user-space tool numactl depends on sysfs files too. So, I think it is very reasonable to make CONFIG_NUMA depend on CONFIG_SYSFS. Signed-off-by: WANG Cong <amwang@...hat.com> Cc: Andi Kleen <andi@...stfloor.org> Cc: Mel Gorman <mgorman@...e.de> Cc: linux-mm@...ck.org --- arch/alpha/Kconfig | 1 + arch/ia64/Kconfig | 1 + arch/m32r/Kconfig | 1 + arch/mips/Kconfig | 1 + arch/powerpc/Kconfig | 1 + arch/sh/mm/Kconfig | 1 + arch/sparc/Kconfig | 1 + arch/tile/Kconfig | 1 + arch/x86/Kconfig | 1 + 9 files changed, 9 insertions(+), 0 deletions(-) diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 60219bf..44439ec 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -570,6 +570,7 @@ source "mm/Kconfig" config NUMA bool "NUMA Support (EXPERIMENTAL)" depends on DISCONTIGMEM && BROKEN + depends on SYSFS help Say Y to compile the kernel to support NUMA (Non-Uniform Memory Access). This option is for configuring high-end multiprocessor diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 38280ef..b12fac3 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -450,6 +450,7 @@ config ARCH_DISCONTIGMEM_DEFAULT config NUMA bool "NUMA support" depends on !IA64_HP_SIM && !FLATMEM + depends on SYSFS default y if IA64_SGI_SN2 select ACPI_NUMA if ACPI help diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig index 85b44e8..21e668d 100644 --- a/arch/m32r/Kconfig +++ b/arch/m32r/Kconfig @@ -325,6 +325,7 @@ config NR_CPUS config NUMA bool "Numa Memory Allocation Support" depends on SMP && BROKEN + depends on SYSFS default n config NODES_SHIFT diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 653da62..760d0d6 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -2072,6 +2072,7 @@ config ARCH_SPARSEMEM_ENABLE config NUMA bool "NUMA Support" depends on SYS_SUPPORTS_NUMA + depends on SYSFS help Say Y to compile the kernel to support NUMA (Non-Uniform Memory Access). This option improves performance on systems with more diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 2729c66..32e1bc1 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -392,6 +392,7 @@ config IRQ_ALL_CPUS config NUMA bool "NUMA support" depends on PPC64 + depends on SYSFS default y if SMP && PPC_PSERIES config NODES_SHIFT diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig index c3e61b3..7928c9a 100644 --- a/arch/sh/mm/Kconfig +++ b/arch/sh/mm/Kconfig @@ -111,6 +111,7 @@ config VSYSCALL config NUMA bool "Non Uniform Memory Access (NUMA) Support" depends on MMU && SYS_SUPPORTS_NUMA && EXPERIMENTAL + depends on SYSFS default n help Some SH systems have many various memories scattered around diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 253986b..2a38c5d 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -338,6 +338,7 @@ endchoice config NUMA bool "NUMA support" depends on SPARC64 && SMP + depends on SYSFS config NODES_SHIFT int diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 0249b8b..fa7d219 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -187,6 +187,7 @@ config HIGHMEM config NUMA bool # "NUMA Memory Allocation and Scheduler Support" depends on SMP && DISCONTIGMEM + depends on SYSFS default y ---help--- NUMA memory allocation is required for TILE processors diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index da34972..be0c229 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1146,6 +1146,7 @@ config DIRECT_GBPAGES config NUMA bool "Numa Memory Allocation and Scheduler Support" depends on SMP + depends on SYSFS depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && EXPERIMENTAL) default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP) ---help--- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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