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Thu, 25 Feb 2021 18:29:09 +0000 (UTC) Received: from [10.36.114.58] (ovpn-114-58.ams2.redhat.com [10.36.114.58]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4AE1E19C79; Thu, 25 Feb 2021 18:29:08 +0000 (UTC) Subject: Re: [PATCH v2 6/7] x86/Kconfig: Introduce ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE To: Oscar Salvador , Andrew Morton Cc: Michal Hocko , VlastimilBabkavbabka@suse.cz, pasha.tatashin@soleen.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Anshuman Khandual References: <20210209133854.17399-1-osalvador@suse.de> <20210209133854.17399-7-osalvador@suse.de> From: David Hildenbrand Organization: Red Hat GmbH Message-ID: Date: Thu, 25 Feb 2021 19:29:07 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.0 MIME-Version: 1.0 In-Reply-To: <20210209133854.17399-7-osalvador@suse.de> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Stat-Signature: 1zjkji4fcfbycpz1xu59sw36ihhmcrj3 X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 2BCF9F4 Received-SPF: none (redhat.com>: No applicable sender policy available) receiver=imf12; identity=mailfrom; envelope-from=""; helo=us-smtp-delivery-124.mimecast.com; client-ip=63.128.21.124 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1614277750-344497 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 09.02.21 14:38, Oscar Salvador wrote: > Enable x86_64 platform to use the MHP_MEMMAP_ON_MEMORY feature. > > Signed-off-by: Oscar Salvador > --- > arch/x86/Kconfig | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index 72663de8b04c..81046b7adb10 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -2440,6 +2440,10 @@ 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 && SPARSEMEM_VMEMMAP_ENABLE It depends on SPARSEMEM_VMEMMAP, no? I think we could have SPARSEMEM_VMEMMAP_ENABLE=y and SPARSEMEM_VMEMMAP=n on manually tuned configs. -- Thanks, David / dhildenb