linux-kernel - Re: [PATCH v2 1/3] mm: replace memmap_context by memplug

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Message-ID: <d6ade681-2fb1-a1df-5673-bceacd1dfc55@redhat.com>
Date:   Mon, 14 Sep 2020 19:10:46 +0200
From:   David Hildenbrand <david@...hat.com>
To:     Laurent Dufour <ldufour@...ux.ibm.com>, akpm@...ux-foundation.org,
        Oscar Salvador <osalvador@...e.de>, mhocko@...nel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-mm@...ck.org, "Rafael J . Wysocki" <rafael@...nel.org>,
        nathanl@...ux.ibm.com, cheloha@...ux.ibm.com,
        Tony Luck <tony.luck@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>, linux-ia64@...r.kernel.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH v2 1/3] mm: replace memmap_context by memplug_context

On 14.09.20 18:50, Laurent Dufour wrote:
> The memmap_context is used to detect whether a memory operation is due to a
> hot-add operation or happening at boot time.
> 
> Make it general to the hotplug operation and rename it at memplug_context.
> 
> There is no functional change introduced by this patch
> 
> Suggested-by: David Hildenbrand <david@...hat.com>
> Signed-off-by: Laurent Dufour <ldufour@...ux.ibm.com>
> ---
>  arch/ia64/mm/init.c    |  6 +++---
>  include/linux/mm.h     |  2 +-
>  include/linux/mmzone.h | 11 ++++++++---
>  mm/memory_hotplug.c    |  2 +-
>  mm/page_alloc.c        | 10 +++++-----
>  5 files changed, 18 insertions(+), 13 deletions(-)
> 
> diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
> index 0b3fb4c7af29..b5054b5e77c8 100644
> --- a/arch/ia64/mm/init.c
> +++ b/arch/ia64/mm/init.c
> @@ -538,7 +538,7 @@ virtual_memmap_init(u64 start, u64 end, void *arg)
>  	if (map_start < map_end)
>  		memmap_init_zone((unsigned long)(map_end - map_start),
>  				 args->nid, args->zone, page_to_pfn(map_start),
> -				 MEMMAP_EARLY, NULL);
> +				 MEMPLUG_EARLY, NULL);

I am pretty sure that won't compile (MEMINIT_EARLY).

(same at other places)


-- 
Thanks,

David / dhildenb