Re: [patch 2/3] add new macros to make percpu readmostly sectioncorrectly align

From: Tejun Heo
Date: Wed Dec 15 2010 - 09:09:01 EST


Hello,

On 12/15/2010 02:57 AM, Shaohua Li wrote:
> How about this one?

Much better. :-)

> +#ifdef INTERNODE_CACHE_BYTES
> +#define INTERNODE_CACHEALIGNED \
> + . = ALIGN(INTERNODE_CACHE_BYTES);
> +#else
> +#define INTERNODE_CACHEALIGNED
> +#endif

Yeah, this looks good.

> Index: linux/arch/x86/kernel/vmlinux.lds.S
> ===================================================================
> --- linux.orig/arch/x86/kernel/vmlinux.lds.S 2010-12-15 09:37:01.000000000 +0800
> +++ linux/arch/x86/kernel/vmlinux.lds.S 2010-12-15 09:37:06.000000000 +0800
> @@ -20,11 +20,11 @@
> #define LOAD_OFFSET __START_KERNEL_map
> #endif
>
> -#include <asm-generic/vmlinux.lds.h>
> #include <asm/asm-offsets.h>
> #include <asm/thread_info.h>
> #include <asm/page_types.h>
> #include <asm/cache.h>
> +#include <asm-generic/vmlinux.lds.h>
> #include <asm/boot.h>

Why do we need this chunk?

Thanks.

--
tejun
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