linux-kernel - Re: [PATCH v3 4/5] x86/Kconfig: Introduce ARCH_MHP_MEMMAP_ON_MEMORY

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Date:   Fri, 5 Mar 2021 16:32:07 +0100
From:   David Hildenbrand <david@...hat.com>
To:     Oscar Salvador <osalvador@...e.de>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     Michal Hocko <mhocko@...nel.org>,
        Anshuman Khandual <anshuman.khandual@....com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Pavel Tatashin <pasha.tatashin@...een.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 4/5] x86/Kconfig: Introduce
 ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE

On 04.03.21 11:00, Oscar Salvador wrote:
> Enable x86_64 platform to use the MHP_MEMMAP_ON_MEMORY feature.
> 
> Signed-off-by: Oscar Salvador <osalvador@...e.de>
> ---
>   arch/x86/Kconfig | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 2792879d398e..6d716d8bce1e 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -2433,6 +2433,10 @@ config ARCH_ENABLE_MEMORY_HOTREMOVE
>   	def_bool y
>   	depends on MEMORY_HOTPLUG
>   
> +config ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE
> +	def_bool y
> +	depends on X86_64 && MEMORY_HOTPLUG

Was wondering if the MEMORY_HOTPLUG would also best be part of the 
generic MHP_MEMMAP_ON_MEMORY.

Apart from that

Reviewed-by: David Hildenbrand <david@...hat.com>


-- 
Thanks,

David / dhildenb