[PATCH] makedumpfile: fix missing count of filtered free pages

[Atsushi Kumagai]

On Thu, 14 Mar 2013 16:54:15 +0900 (JST)
HATAYAMA Daisuke <d.hatayama at jp.fujitsu.com> wrote:

> On the current implementation, __exclude_unnecessary_pages() can refer
> to page frames not belonging to current cycle. Thus, pfn_free can be
> now counted up even if it doesn't belong to the current cycle.
> 
> This patch changes it so pfn_free is counted up only if the
> corresponding pfn really belongs to the cycle.
> 
> Signed-off-by: HATAYAMA Daisuke <d.hatayama at jp.fujitsu.com>

Thanks, applied.

Atsushi Kumagai

> ---
>  makedumpfile.c |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/makedumpfile.c b/makedumpfile.c
> index acb1b21..817da34 100644
> --- a/makedumpfile.c
> +++ b/makedumpfile.c
> @@ -4224,9 +4224,9 @@ __exclude_unnecessary_pages(unsigned long mem_map,
>  				 * See check_cyclic_buffer_overrun()
>  				 * for the detail.
>  				 */
> -				clear_bit_on_2nd_bitmap_for_kernel(pfn + i);
> +				if (clear_bit_on_2nd_bitmap_for_kernel(pfn + i))
> +					pfn_free++;
>  			}
> -			pfn_free += i;
>  		}
>  		/*
>  		 * Exclude the cache page without the private page.
> -- 
> 1.7.7.6
> 
> 
> 
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