From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_MUTT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 973D1C28EB4 for ; Thu, 6 Jun 2019 17:02:45 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 69B7020693 for ; Thu, 6 Jun 2019 17:02:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 69B7020693 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 027896B027D; Thu, 6 Jun 2019 13:02:45 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id EF3696B027E; Thu, 6 Jun 2019 13:02:44 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DBA8A6B027F; Thu, 6 Jun 2019 13:02:44 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from mail-ed1-f70.google.com (mail-ed1-f70.google.com [209.85.208.70]) by kanga.kvack.org (Postfix) with ESMTP id 9D70E6B027D for ; Thu, 6 Jun 2019 13:02:44 -0400 (EDT) Received: by mail-ed1-f70.google.com with SMTP id d27so4615420eda.9 for ; Thu, 06 Jun 2019 10:02:44 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-original-authentication-results:x-gm-message-state:date:from:to :cc:subject:message-id:references:mime-version:content-disposition :in-reply-to:user-agent; bh=DrPMSDJ9GctNXFYDOwxTZlKQ8HNcUk73mNu2VAHmVj8=; b=S7tDwtSJJTsMDDliPw8gZJAnMERBHY3bUUBQP3dkbcYrAm/RQFsS9Vgf5XWLjZrOru 2XRnCGZ8hKFG5zersDtyu+ovft/So8F61v7O9Sm10y0zTbGc3fXpYj3DVzEFxiCt3vSN LbIyGrAXpCzu/QPUG+GFW94v2xmbphEX52Uns4+mr1YrRurv0WP8Ba6PthFemT5Rr0Dt wnldLXvTiz3NHmrbuMqKbZtBCaNtACatu3H35V2zNRlpczyQL+1YDLEPq6ZnOX9kVcax RVmoSIJNvCgO1E+17i/q33BDxqrl4wXTSYdbtMEVOtiCCBZBISexKBWAGwk6eCTzdGoj NShg== X-Original-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-Gm-Message-State: APjAAAXW7qPLsi3txblOWwBngtoIrWodXuS50BQ/UV/lhe609+Rlzw6q oexbqCj1teNLVGFQr0Tq0nK4gcBkoUNM7FGpgjR5dFh2j0nzwpepYiLRZ7VsnjInOh8YCOXU8pB 7m5L+gF8vWBsGFwGFwYfeDztRko8Yx0hu5wn4qAv85AmuKrQ3YjUeFSSb0j8oEKoPEA== X-Received: by 2002:a17:906:5007:: with SMTP id s7mr2884070ejj.81.1559840564023; Thu, 06 Jun 2019 10:02:44 -0700 (PDT) X-Google-Smtp-Source: APXvYqxTimHAWuqx7skOpNVdIMEwOS13FWBR/IPJCnCSipqnMyQNuVXLKBnPSoEt1xPSxHWanIr2 X-Received: by 2002:a17:906:5007:: with SMTP id s7mr2884002ejj.81.1559840563334; Thu, 06 Jun 2019 10:02:43 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1559840563; cv=none; d=google.com; s=arc-20160816; b=Wwe96DNu1aCJcwYJ5uUNlNBO0empmcKE4T23ubOFUrgEuHBmwFJdcQtVfD/b1J15s0 BF0srUhK+S88v1W6oxcX27Kzwokhd5k3FwrfTArcozzvtOT5ALB9SOZgR6DuGBwPXOAo C/BOSN8OLhG9A+TbtPNnPQQkwmloGdop3Tqr08WOaqQEyn1TxnkMV9zpn1SMH9VGxSHU MG3a62PNeM3q6s+VfS7Qo7NJu68DoRNiAdc7rMzmmBL5UAk3BVQ3o/JgQg6yFjNMzwda ydRXx2oY0veFliJ+MpcdBvl8aBdmPH4l+YMkol5TWCf5GPr+ORKl9Syk7K6EX/Fz9iYc pbBA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=user-agent:in-reply-to:content-disposition:mime-version:references :message-id:subject:cc:to:from:date; bh=DrPMSDJ9GctNXFYDOwxTZlKQ8HNcUk73mNu2VAHmVj8=; b=mVtPPQG5cqkLdgANzHLeVwh3bjAKkE7a4IY2t197AQkQIuOvCxdIaWBVyJQ0O6dtkb 1dKUT3DNRTtposTLNSsgK77n1H1LbV0gx1JKNX13kLM2ciL/D0JpFibVCKQ1dZOH1Goz j8jBQMZsbfJuYVFX3/7zl0/4Dwaa6ldZdwDtAHC02/sqKOFm6WV6uX5MtJ/K4AczEeTS B4ozs6+sYeCi67Vdy5etUXkqLTnAA+Yluw8LEH3cvjjCu/GsPxZYBp9K/cRhJLzhsmzL ktOjwagnunusovtIkLFiHt36qVPXJ+9xpJmKduIgeDBr2JqSvmg0jk1TpE+iW9hCXxou Bn/g== ARC-Authentication-Results: i=1; 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 Received: from mx1.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id i22si572531edx.122.2019.06.06.10.02.43 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 06 Jun 2019 10:02:43 -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 853E7AD1D; Thu, 6 Jun 2019 17:02:42 +0000 (UTC) Date: Thu, 6 Jun 2019 19:02:39 +0200 From: Oscar Salvador To: Dan Williams Cc: akpm@linux-foundation.org, Michal Hocko , David Hildenbrand , Logan Gunthorpe , Pavel Tatashin , linux-mm@kvack.org, linux-nvdimm@lists.01.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v9 04/12] mm/sparsemem: Convert kmalloc_section_memmap() to populate_section_memmap() Message-ID: <20190606170239.GB31194@linux> References: <155977186863.2443951.9036044808311959913.stgit@dwillia2-desk3.amr.corp.intel.com> <155977189139.2443951.460884430946346998.stgit@dwillia2-desk3.amr.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <155977189139.2443951.460884430946346998.stgit@dwillia2-desk3.amr.corp.intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) 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, Jun 05, 2019 at 02:58:21PM -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