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[209.85.220.65]) by mx.google.com with SMTPS id a36sor10987753edd.23.2019.04.24.13.33.21 for (Google Transport Security); Wed, 24 Apr 2019 13:33:22 -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=Xg6OGbjc; 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=Ei50cL/3SAzu+3HwY4Rcgwlyq29ejpdQ2HpVb/S/D9s=; b=Xg6OGbjcfyaLCpDFhcTnpTO0iMfD/817X5nad/yjtudZp5QywW5weHOdb9geKQ7fX1 ajO0Auw6e7a4gakil7TmM47F5054UAHeVoyNPrkYi+mNkbiGhzoVnTy1MynMu+Wt68Tf ULl93eCOPa3lJ4pns7KmMESX420Hf7IZC7uVPgB2WAsPleGBaRmWciy10fbmrvie4EK6 Jr3BmDrWGQQcIYj8C6hYyk/5B6ISkKIdFBT1Mca66lY2iEViy9Rctii5QifP2/JpbyIw DUdETDpUjrFDaCsYEPKNAo08kyX6zXVxe1ANGYqmSy4C8EsKxZ9RQtakVGdSkEPfqqkL +Puw== 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" 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: > 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