linux-kernel - Re: [PATCH] mm/mm_init.c: remove free_area_init_memoryless

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Message-ID: <20230529090446.GK4967@kernel.org>
Date:   Mon, 29 May 2023 12:04:46 +0300
From:   Mike Rapoport <rppt@...nel.org>
To:     Haifeng Xu <haifeng.xu@...pee.com>
Cc:     akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, Michal Hocko <mhocko@...nel.org>
Subject: Re: [PATCH] mm/mm_init.c: remove free_area_init_memoryless_node()

(added Michal)

On Sun, May 28, 2023 at 04:57:20AM +0000, Haifeng Xu wrote:
> free_area_init_memoryless_node() is just a wrapper of
> free_area_init_node(), remove it to clean up.
> 
> Signed-off-by: Haifeng Xu <haifeng.xu@...pee.com>
> ---
>  mm/mm_init.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
> 
> diff --git a/mm/mm_init.c b/mm/mm_init.c
> index 2d91bb52c619..93821824271a 100644
> --- a/mm/mm_init.c
> +++ b/mm/mm_init.c
> @@ -1752,11 +1752,6 @@ void __init setup_nr_node_ids(void)
>  }
>  #endif
>  
> -static void __init free_area_init_memoryless_node(int nid)
> -{
> -	free_area_init_node(nid);
> -}
> -
>  /*
>   * Some architectures, e.g. ARC may have ZONE_HIGHMEM below ZONE_NORMAL. For
>   * such cases we allow max_zone_pfn sorted in the descending order
> @@ -1867,7 +1862,7 @@ void __init free_area_init(unsigned long *max_zone_pfn)
>  				panic("Cannot allocate %zuB for node %d.\n",
>  				       sizeof(*pgdat), nid);
>  			arch_refresh_nodedata(nid, pgdat);
> -			free_area_init_memoryless_node(nid);
> +			free_area_init_node(nid);

Using a dedicated free_area_init_memoryless_node() wrapper here emphasizes
that the node has no memory, but I don't have a strong feeling about
keeping it.

>  
>  			/*
>  			 * We do not want to confuse userspace by sysfs
> -- 
> 2.25.1
> 

-- 
Sincerely yours,
Mike.