Re: [PATCH] futex: bugfix for futex-key conflict when futex use hugepage

[Dave Hansen]

Instead of bothering to store the index, why not just calculate it, like:

On 04/15/2013 08:37 PM, zhang.yi20@xxxxxxxxxx wrote:
> +static inline int get_page_compound_index(struct page *page)
> +{
> +       if (PageHead(page))
> +               return 0;
> +       return compound_head(page) - page;
> +}

BTW, you've really got to get your mail client fixed.  Your patch is
still line-wrapped.
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