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[209.85.220.65]) by mx.google.com with SMTPS id q12sor7982438edd.18.2019.05.02.12.28.32 for (Google Transport Security); Thu, 02 May 2019 12:28:32 -0700 (PDT) Received-SPF: pass (google.com: domain of pasha.tatashin@soleen.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@soleen.com header.s=google header.b=anlXyzLH; spf=pass (google.com: domain of pasha.tatashin@soleen.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=pasha.tatashin@soleen.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=soleen.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=2BtVF69qKBrz9RiY6v2/KzAanhM7UTkuvfK1eqLRPts=; b=anlXyzLHl7/mu36RIFAIxcKsrMSkce8RmXLT6gA8XWonyrduEZz1Kg+UsC5D7z8FMT pj/5pMF5ClMHohgj3ZkruEIp4c2E5vQjyL591Z6YSXLnoKPyWVamFD6tN0pTpi2Xf+h/ 6EzBRSlftPpfc3PWdfVmuQ20DUG8J6I1uPHl0PHVXqEYgJSmeLguWSTy+gizwQEVh6D4 zU9Rll/WLv1aAxKOG1/NLVtaNEEZD0tv0yxKuRd4XH5bskMKWYH80Kho+m1Dm+hRb0yt zHtzKyeb1W4lTDOJ3OHpU0hw3N/Lnedq8p2bBwEGvzkeS6cCOEC/t+VkwYNJtyLd9K+K BM5A== X-Google-Smtp-Source: APXvYqzhKsKRt3YYywySk19JgdcvKgG4zttzP8aHLHqRlNIg61SzvLJCSfVQUqqi+2uhnhEboRWyoEvmzKYQf/GF1Ns= X-Received: by 2002:a50:b4f7:: with SMTP id x52mr2879275edd.190.1556825312425; Thu, 02 May 2019 12:28:32 -0700 (PDT) MIME-Version: 1.0 References: <155552633539.2015392.2477781120122237934.stgit@dwillia2-desk3.amr.corp.intel.com> <155552636181.2015392.6062894291885124658.stgit@dwillia2-desk3.amr.corp.intel.com> In-Reply-To: <155552636181.2015392.6062894291885124658.stgit@dwillia2-desk3.amr.corp.intel.com> From: Pavel Tatashin Date: Thu, 2 May 2019 15:28:21 -0400 Message-ID: Subject: Re: [PATCH v6 05/12] mm/sparsemem: Convert kmalloc_section_memmap() to populate_section_memmap() To: Dan Williams Cc: Andrew Morton , Michal Hocko , David Hildenbrand , Logan Gunthorpe , linux-mm , linux-nvdimm , LKML Content-Type: text/plain; charset="UTF-8" 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 Wed, Apr 17, 2019 at 2:53 PM 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 > Signed-off-by: Dan Williams Reviewed-by: Pavel Tatashin