linux-kernel - Re: [PATCH 1/2] mm: extract common code for calculating total memory size

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Date:   Fri, 27 Oct 2017 05:00:54 -0500 (CDT)
From:   Christopher Lameter <cl@...ux.com>
To:     Yang Shi <yang.s@...baba-inc.com>
cc:     penberg@...nel.org, rientjes@...gle.com, iamjoonsoo.kim@....com,
        akpm@...ux-foundation.org, mhocko@...nel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] mm: extract common code for calculating total memory
 size

On Thu, 26 Oct 2017, Yang Shi wrote:

> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index 935c4d4..e21b81e 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -2050,6 +2050,31 @@ extern int __meminit __early_pfn_to_nid(unsigned long pfn,
>  static inline void zero_resv_unavail(void) {}
>  #endif
>
> +static inline void calc_mem_size(unsigned long *total, unsigned long *reserved,
> +				 unsigned long *highmem)
> +{

Huge incline function. This needs to go into mm/page_alloc.c or
mm/slab_common.c