On Friday 02 September 2005 23:56, Dave Hansen wrote:
>
> A little helper that we use in the hotplug code.
>
> Signed-off-by: Dave Hansen <[EMAIL PROTECTED]>
> ---
>
> memhotplug-dave/include/linux/mmzone.h | 25 +++++++++++++++++++++++++
> 1 files changed, 25 insertions(+)
>
> diff -puN include/linux/mmzone.h~C3-__section_nr include/linux/mmzone.h
> --- memhotplug/include/linux/mmzone.h~C3-__section_nr 2005-08-18
> 14:59:45.000000000 -0700
> +++ memhotplug-dave/include/linux/mmzone.h 2005-08-18 14:59:45.000000000
> -0700
> @@ -511,6 +511,31 @@ static inline struct mem_section *__nr_t
> }
>
> /*
> + * Although written for the SPARSEMEM_EXTREME case, this happens
> + * to also work for the flat array case becase
> + * NR_SECTION_ROOTS==NR_MEM_SECTIONS.
> + */
> +static inline int __section_nr(struct mem_section* ms)
> +{
> + unsigned long root_nr;
> + struct mem_section* root;
> +
> + for (root_nr = 0;
> + root_nr < NR_MEM_SECTIONS;
> + root_nr += SECTIONS_PER_ROOT) {
> + root = __nr_to_section(root_nr);
> +
> + if (!root)
> + continue;
> +
> + if ((ms >= root) && (ms < (root + SECTIONS_PER_ROOT)))
> + break;
> + }
> +
> + return (root_nr * SECTIONS_PER_ROOT) + (ms - root);
> +}
> +
> +/*
isn't it too much for the inlining?
--
vda
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