Received: by 2002:ac0:a581:0:0:0:0:0 with SMTP id m1-v6csp6180621imm; Wed, 27 Jun 2018 03:41:58 -0700 (PDT) X-Google-Smtp-Source: ADUXVKJZ551WAqrfNFOPUmn9BgjBbZJDBXvrcrwd9NYoaiyrdVPDKxojqNMFwKpKeUCfeny36G+U X-Received: by 2002:a65:6147:: with SMTP id o7-v6mr4674709pgv.163.1530096118580; Wed, 27 Jun 2018 03:41:58 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1530096118; cv=none; d=google.com; s=arc-20160816; b=szq7Qb+F/5ylqODwZ0f9CJOvSKr86oVZ55iqFQKIT466gRGg+z/8tZlbZD0qm6mgEo w5Ovx7iYP3tzbWCxI70ThLch1i3bq9aLbdbY4aTj2l1UnqhuEUl2n0TQ0dh1Piqa0Tsg JnluXvxA+Nl6/KuRdVFfIEVSnRqtNDK0TzPVEjW4GcsCX8ANXfvBUAaT3OuJjixAsvTl W5UlB0aO2BeIgoxNZ/cYfF7Z28zRwe/G72GYC0Gxq+t5O1Aaa50+eCYDuF9sidsbbbRY z3B5LjJtZNaSuw3H38sJXqAJKN1vz5cs25i51HO+D0pJkuQELYiCh+sV9HtM75uo6PYT OauA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:arc-authentication-results; bh=vQkBJkBbhVDGyHLLCuw/6K54Y95Cdh6D2ekHvxsjY2M=; b=s2UCOtl0PPW+Z/TPM15IQk0SyhbrH5Yq2MI2ILcItmYa8Y/vJU7Zuo3zbDh/zUzIbx 6eqRCXgxSfWq+iz5JgpNLtPMdsoFMqZxvzqpAPtfiiB8rcN54/e7NnJHUv9f0pXi1+zB 7jGsw8hK7miMyX8ygmqigFc+8gRgH1DAvCfCYzPKVlTVcrN/icEVW3LgFZXnKm3RfOrE v+CIs5+s7gpBxo8cOy/0XS0Ah2ytfwhVXUavYvpPkbmliw5aJvZJ4QBV24mqxH1ipL5q IIv/H+mvFNiFRcQGMRW4WqrDP9Nv5B+ruPhTvlBSpvMv4/VWl3wg/zq8tlZ1AMRvehE+ bG3Q== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id g2-v6si4313048pfa.271.2018.06.27.03.41.41; Wed, 27 Jun 2018 03:41:58 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933296AbeF0Kks (ORCPT + 99 others); Wed, 27 Jun 2018 06:40:48 -0400 Received: from mx2.suse.de ([195.135.220.15]:36957 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932371AbeF0Kkq (ORCPT ); Wed, 27 Jun 2018 06:40:46 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (charybdis-ext-too.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 60760ACF6; Wed, 27 Jun 2018 10:40:45 +0000 (UTC) Date: Wed, 27 Jun 2018 12:40:44 +0200 From: Michal Hocko To: Mike Rapoport Cc: Rob Herring , linux-mm@kvack.org, hannes@cmpxchg.org, Andrew Morton , linux-arch@vger.kernel.org, Linux Kernel Mailing List Subject: Re: why do we still need bootmem allocator? Message-ID: <20180627104044.GJ32348@dhcp22.suse.cz> References: <20180625140754.GB29102@dhcp22.suse.cz> <20180627101144.GC4291@rapoport-lnx> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180627101144.GC4291@rapoport-lnx> User-Agent: Mutt/1.10.0 (2018-05-17) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed 27-06-18 13:11:44, Mike Rapoport wrote: > On Mon, Jun 25, 2018 at 10:09:41AM -0600, Rob Herring wrote: > > On Mon, Jun 25, 2018 at 8:08 AM Michal Hocko wrote: > > > > > > Hi, > > > I am wondering why do we still keep mm/bootmem.c when most architectures > > > already moved to nobootmem. Is there any fundamental reason why others > > > cannot or this is just a matter of work? > > > > Just because no one has done the work. I did a couple of arches > > recently (sh, microblaze, and h8300) mainly because I broke them with > > some DT changes. > > I have a patch for alpha nearly ready. Cool! > That leaves m68k and ia64 I will not get to those anytime soon (say a week or two) but I have that close on top of my todo list. -- Michal Hocko SUSE Labs