Re: [PATCH] mm: cma: fix accounting of CMA pages placed in high memory

[Kyungmin Park <kmpark@infradead.org>]

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On Monday, February 4, 2013, Marek Szyprowski wrote:

> The total number of low memory pages is determined as
> totalram_pages - totalhigh_pages, so without this patch all CMA
> pageblocks placed in highmem were accounted to low memory.
>
> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com <javascript:;>>

Acked-by: Kyungmin Park <kyungmin.park@samsung.com>

> ---
>  mm/page_alloc.c |    4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index f5bab0a..6415d93 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -773,6 +773,10 @@ void __init init_cma_reserved_pageblock(struct page
> *page)
>         set_pageblock_migratetype(page, MIGRATE_CMA);
>         __free_pages(page, pageblock_order);
>         totalram_pages += pageblock_nr_pages;
> +#ifdef CONFIG_HIGHMEM
> +       if (PageHighMem(page))
> +               totalhigh_pages += pageblock_nr_pages;
> +#endif
>  }
>  #endif
>
> --
> 1.7.9.5
>
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