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=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 46A9FC433E1 for ; Fri, 17 Jul 2020 05:05:18 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0694F20578 for ; Fri, 17 Jul 2020 05:05:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="na/HfpeY" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0694F20578 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=uko5jF5/iXQqUmXBAleVOVeMSGCXJdNq3RVtJlUz1po=; b=na/HfpeYHIOgA02nRZCyIHABu gE0ftTe1JXrzzKEkFgLOnZsVKVi6S0L2MWi82x3eIH5VTHX/iZe9JxRHzqiv8TYLegBkdWnhoLBy/ n8NQrg2YA4jVeHV90dxUHPK4r68KrJT1vwtZPCWimg0Q0uN+1vqok2aQ5iJwQ8tVizcLkuuGJCFv9 jxmNPzKrq9d63tuihxAeLSjw5PSa9+hxvjPEodjwWdpxLHIk0/r0zoZQffMW5o5FqJVOLkdk++InO 4N+LuPq1mpXWKrpDUvL2D2rSqT10oTaoSVXeY7doy1CRkSCcvAh/jrbKykUGpB9P01gSBAJOUmZI0 JAEvPVzSg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jwIWz-00038v-BB; Fri, 17 Jul 2020 05:03:33 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jwIWw-000382-TC for linux-arm-kernel@lists.infradead.org; Fri, 17 Jul 2020 05:03:31 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 874B730E; Thu, 16 Jul 2020 22:03:28 -0700 (PDT) Received: from [10.163.88.185] (unknown [10.163.88.185]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 9217E3F66E; Thu, 16 Jul 2020 22:03:23 -0700 (PDT) Subject: Re: [PATCH v3] mm/hugetlb: split hugetlb_cma in nodes with memory To: Mike Kravetz , Will Deacon , Roman Gushchin References: <20200710120950.37716-1-song.bao.hua@hisilicon.com> <359ea1d0-b1fd-d09f-d28a-a44655834277@oracle.com> <20200715081822.GA5683@willie-the-truck> <5724f1f8-63a6-ee0f-018c-06fb259b6290@oracle.com> <20200716081243.GA6561@willie-the-truck> From: Anshuman Khandual Message-ID: <81103d30-f4fd-8807-03f9-d131da5097bd@arm.com> Date: Fri, 17 Jul 2020 10:32:53 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200717_010331_050433_1E45A443 X-CRM114-Status: GOOD ( 14.06 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Barry Song , "H.Peter Anvin" , Catalin Marinas , x86@kernel.org, linux-kernel@vger.kernel.org, linuxarm@huawei.com, linux-mm@kvack.org, Ingo Molnar , Borislav Petkov , Jonathan Cameron , Thomas Gleixner , Mike Rapoport , akpm@linux-foundation.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 07/16/2020 11:55 PM, Mike Kravetz wrote: >>>From 17c8f37afbf42fe7412e6eebb3619c6e0b7e1c3c Mon Sep 17 00:00:00 2001 > From: Mike Kravetz > Date: Tue, 14 Jul 2020 15:54:46 -0700 > Subject: [PATCH] hugetlb: move cma reservation to code setting up gigantic > hstate > > Instead of calling hugetlb_cma_reserve() directly from arch specific > code, call from hugetlb_add_hstate when adding a gigantic hstate. > hugetlb_add_hstate is either called from arch specific huge page setup, > or as the result of hugetlb command line processing. In either case, > this is late enough in the init process that all numa memory information > should be initialized. And, it is early enough to still use early > memory allocator. This assumes that hugetlb_add_hstate() is called from the arch code at the right point in time for the generic HugeTLB to do the required CMA reservation which is not ideal. I guess it must have been a reason why CMA reservation should always called by the platform code which knows the boot sequence timing better. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel