On Sat 22-08-15 15:40:10, Yaowei Bai wrote:
> The comment says that the per-cpu batchsize and zone watermarks
> are determined by present_pages which is definitely wrong, they
> are both calculated from managed_pages. Fix it.
This seems to be missed in b40da04946aa ("mm: use zone->present_pages
instead of zone->managed_pages where appropriate")
>
> Signed-off-by: Yaowei Bai <[email protected]>
Acked-by: Michal Hocko <[email protected]>
> ---
> mm/page_alloc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index 5b5240b..c22b133 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -6003,7 +6003,7 @@ void __init mem_init_print_info(const char *str)
> * set_dma_reserve - set the specified number of pages reserved in the first
> zone
> * @new_dma_reserve: The number of pages to mark reserved
> *
> - * The per-cpu batchsize and zone watermarks are determined by present_pages.
> + * The per-cpu batchsize and zone watermarks are determined by managed_pages.
> * In the DMA zone, a significant percentage may be consumed by kernel image
> * and other unfreeable allocations which can skew the watermarks badly. This
> * function may optionally be used to account for unfreeable pages in the
> --
> 1.9.1
>
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
--
Michal Hocko
SUSE Labs
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
