Re: [PATCH 3/3] mm: Introduce HAVE_ARCH_TRANSPARENT_HUGEPAGE
From: Kirill A. Shutemov <hidden>
Date: 2012-09-11 17:40:35
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On Tue, Sep 11, 2012 at 05:47:16PM +0100, Will Deacon wrote:
From: Steve Capper <redacted> Different architectures have slightly different pre-requisites for supporting Transparent Huge Pages. To simplify the layout of mm/Kconfig, a new option HAVE_ARCH_TRANSPARENT_HUGEPAGE is introduced and set in each architecture's Kconfig file (at the moment x86, with ARM being set in a future patch). Signed-off-by: Steve Capper <redacted> Signed-off-by: Will Deacon <redacted>
Reviewed-by: Kirill A. Shutemov <redacted>
quoted hunk ↗ jump to hunk
--- arch/x86/Kconfig | 4 ++++ mm/Kconfig | 2 +- 2 files changed, 5 insertions(+), 1 deletions(-)diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 8ec3a1a..7decdcf 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig@@ -1297,6 +1297,10 @@ config ILLEGAL_POINTER_VALUE default 0 if X86_32 default 0xdead000000000000 if X86_64 +config HAVE_ARCH_TRANSPARENT_HUGEPAGE + def_bool y + depends on MMU + source "mm/Kconfig" config HIGHPTEdiff --git a/mm/Kconfig b/mm/Kconfig index d5c8019..3322342 100644 --- a/mm/Kconfig +++ b/mm/Kconfig@@ -318,7 +318,7 @@ config NOMMU_INITIAL_TRIM_EXCESS config TRANSPARENT_HUGEPAGE bool "Transparent Hugepage Support" - depends on X86 && MMU + depends on HAVE_ARCH_TRANSPARENT_HUGEPAGE select COMPACTION help Transparent Hugepages allows the kernel to use huge pages and-- 1.7.4.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
-- Kirill A. Shutemov