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=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 9B920C282CE for ; Wed, 24 Apr 2019 20:33:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 69EDB2183E for ; Wed, 24 Apr 2019 20:33:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=soleen.com header.i=@soleen.com header.b="Xg6OGbjc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731332AbfDXUdX (ORCPT ); Wed, 24 Apr 2019 16:33:23 -0400 Received: from mail-ed1-f68.google.com ([209.85.208.68]:44066 "EHLO mail-ed1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725989AbfDXUdX (ORCPT ); Wed, 24 Apr 2019 16:33:23 -0400 Received: by mail-ed1-f68.google.com with SMTP id i13so17121308edf.11 for ; Wed, 24 Apr 2019 13:33:22 -0700 (PDT) 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=Ei50cL/3SAzu+3HwY4Rcgwlyq29ejpdQ2HpVb/S/D9s=; b=Xg6OGbjcfyaLCpDFhcTnpTO0iMfD/817X5nad/yjtudZp5QywW5weHOdb9geKQ7fX1 ajO0Auw6e7a4gakil7TmM47F5054UAHeVoyNPrkYi+mNkbiGhzoVnTy1MynMu+Wt68Tf ULl93eCOPa3lJ4pns7KmMESX420Hf7IZC7uVPgB2WAsPleGBaRmWciy10fbmrvie4EK6 Jr3BmDrWGQQcIYj8C6hYyk/5B6ISkKIdFBT1Mca66lY2iEViy9Rctii5QifP2/JpbyIw DUdETDpUjrFDaCsYEPKNAo08kyX6zXVxe1ANGYqmSy4C8EsKxZ9RQtakVGdSkEPfqqkL +Puw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Ei50cL/3SAzu+3HwY4Rcgwlyq29ejpdQ2HpVb/S/D9s=; b=uYGwlU+1k5jrZb2ahXKlOOZtDHa4jyrynCXOlhu52cJ2RHt4GXvjWXPUrSYVAuISrL QNadHVwqL3QyLjPz2aDRaNUZSfi38g7QcF0DnowZM5Mc9SOdZbd7vqeScDzoAG6edNXj tUQB1gID6gjVrSHiJQFLnCkM6xm6xh1zAy6WdH+TsmMtaXjhUMoLyu92WrkJQZh8oXi2 1eSKTJlODD0eG32E1NZaGVwzGopaMmnXvtiV5Jn9hkhPNrNqEDf8vF+e5qThNmtzq2Uq JcbBoKP5RKa8WjfChedCbSFdWvGRAGXg2pLB4sJKAA7FsCChKTUuILas3NXVQjTKgd6r GciA== X-Gm-Message-State: APjAAAXUkhAma7L3rgHeu7sUUTMYWdH5aVgGmURit5zi/ERgJNGKeXD+ OPyQXmoar9ruqmqTsikyxTcs0PAUvOd0EdtcBHFdQg== X-Google-Smtp-Source: APXvYqxagCAaBl5kqo4ujsFeZlClVv7V6IZGrmsI+2EHtCmYLQuoHtSZQewi6mFo2fEG0MV854NdLjtX1+fNETp2fVs= X-Received: by 2002:a50:89cd:: with SMTP id h13mr20624076edh.79.1556138001745; Wed, 24 Apr 2019 13:33:21 -0700 (PDT) MIME-Version: 1.0 References: <20190423203843.2898-1-pasha.tatashin@soleen.com> <7f7499bd-8d48-945b-6d69-60685a02c8da@arm.com> In-Reply-To: From: Pavel Tatashin Date: Wed, 24 Apr 2019 16:33:10 -0400 Message-ID: Subject: Re: [PATCH] arm64: configurable sparsemem section size To: Dan Williams Cc: Anshuman Khandual , James Morris , Sasha Levin , LKML , linux-mm , linux-nvdimm , Andrew Morton , Michal Hocko , Dave Hansen , Keith Busch , Vishal L Verma , Dave Jiang , Ross Zwisler , Tom Lendacky , "Huang, Ying" , Fengguang Wu , Borislav Petkov , Bjorn Helgaas , Yaowei Bai , Takashi Iwai , =?UTF-8?B?SsOpcsO0bWUgR2xpc3Nl?= , Catalin Marinas , Will Deacon , rppt@linux.vnet.ibm.com, Ard Biesheuvel , andrew.murray@arm.com, james.morse@arm.com, Marc Zyngier , sboyd@kernel.org, Linux ARM Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > This is yet another example of where we need to break down the section > alignment requirement for arch_add_memory(). > > https://lore.kernel.org/lkml/155552633539.2015392.2477781120122237934.stgit@dwillia2-desk3.amr.corp.intel.com/ Hi Dan, Yes, that is exactly what I am trying to solve with this patch. I will test if your series works with ARM64, and if does not I will let you know what is broken. But, I think, this patch is not needed if your patches are accepted into mainline. Thank you, Pasha