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[195.135.220.15]) by mx.google.com with ESMTPS id z7si7343997ejq.44.2019.06.24.11.00.56 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 24 Jun 2019 11:00:56 -0700 (PDT) Received-SPF: pass (google.com: domain of osalvador@suse.de designates 195.135.220.15 as permitted sender) client-ip=195.135.220.15; Authentication-Results: mx.google.com; spf=pass (google.com: domain of osalvador@suse.de designates 195.135.220.15 as permitted sender) smtp.mailfrom=osalvador@suse.de X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 2569EAEFF; Mon, 24 Jun 2019 18:00:56 +0000 (UTC) Message-ID: <1561399254.3073.7.camel@suse.de> Subject: Re: [PATCH v10 05/13] mm/sparsemem: Convert kmalloc_section_memmap() to populate_section_memmap() From: Oscar Salvador To: Dan Williams , akpm@linux-foundation.org Cc: Michal Hocko , David Hildenbrand , Logan Gunthorpe , Pavel Tatashin , linux-mm@kvack.org, linux-nvdimm@lists.01.org, linux-kernel@vger.kernel.org Date: Mon, 24 Jun 2019 20:00:54 +0200 In-Reply-To: <156092352058.979959.6551283472062305149.stgit@dwillia2-desk3.amr.corp.intel.com> References: <156092349300.979959.17603710711957735135.stgit@dwillia2-desk3.amr.corp.intel.com> <156092352058.979959.6551283472062305149.stgit@dwillia2-desk3.amr.corp.intel.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit 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 Tue, 2019-06-18 at 22:52 -0700, Dan Williams wrote: > Allow sub-section sized ranges to be added to the memmap. > populate_section_memmap() takes an explict pfn range rather than > assuming a full section, and those parameters are plumbed all the way > through to vmmemap_populate(). There should be no sub-section usage > in > current deployments. New warnings are added to clarify which memmap > allocation paths are sub-section capable. > > Cc: Michal Hocko > Cc: David Hildenbrand > Cc: Logan Gunthorpe > Cc: Oscar Salvador > Reviewed-by: Pavel Tatashin > Signed-off-by: Dan Williams Reviewed-by: Oscar Salvador -- Oscar Salvador SUSE L3