Messages in this thread Patch in this message | | | Date | Fri, 6 Apr 2012 14:47:35 +0200 | From | Sam Ravnborg <> | Subject | [PATCH] x86: drop obsolete ARCH_BOOTMEM support |
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From ae6cdc767f973f39cb205af4b80ff13f35a1b66e Mon Sep 17 00:00:00 2001 From: Sam Ravnborg <sam@ravnborg.org> Date: Fri, 6 Apr 2012 13:37:08 +0200 Subject: [PATCH] x86: drop obsolete ARCH_BOOTMEM support
x86 unconditionally uses NO_BOOTMEM so there is no use of the HAVE_ARCH_BOOTMEM support as mm/bootmem.c is the only file referencing this symbol.
bootmem_arch_preferred_node() is the function referred in the mm/bootmem.c code and can thuis be dropped too.
x86 was the sole user of HAVE_ARCH_BOOTMEM - so there is an opportunity to clean up a little in mm/bootmem.c too if we do not expect other users to emerge.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Tejun Heo <tj@kernel.org> ---
I found this while browsing the bootmem code for other reasons. Build tested on x86-32
Sam
arch/x86/Kconfig | 4 ---- arch/x86/include/asm/mmzone_32.h | 6 ------ 2 files changed, 0 insertions(+), 10 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 1d14cc6..553f15e 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1239,10 +1239,6 @@ config NODES_SHIFT Specify the maximum number of NUMA Nodes available on the target system. Increases memory reserved to accommodate various tables. -config HAVE_ARCH_BOOTMEM - def_bool y - depends on X86_32 && NUMA - config HAVE_ARCH_ALLOC_REMAP def_bool y depends on X86_32 && NUMA diff --git a/arch/x86/include/asm/mmzone_32.h b/arch/x86/include/asm/mmzone_32.h index 55728e1..eb05fb3 100644 --- a/arch/x86/include/asm/mmzone_32.h +++ b/arch/x86/include/asm/mmzone_32.h @@ -61,10 +61,4 @@ static inline int pfn_valid(int pfn) #endif /* CONFIG_DISCONTIGMEM */ -#ifdef CONFIG_NEED_MULTIPLE_NODES -/* always use node 0 for bootmem on this numa platform */ -#define bootmem_arch_preferred_node(__bdata, size, align, goal, limit) \ - (NODE_DATA(0)->bdata) -#endif /* CONFIG_NEED_MULTIPLE_NODES */ - #endif /* _ASM_X86_MMZONE_32_H */ -- 1.6.0.6
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