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[81.17.249.39]) by mx.google.com with ESMTPS id a10si3346698edq.180.2019.04.24.07.19.38 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 24 Apr 2019 07:19:38 -0700 (PDT) Received-SPF: pass (google.com: domain of mgorman@techsingularity.net designates 81.17.249.39 as permitted sender) client-ip=81.17.249.39; Authentication-Results: mx.google.com; spf=pass (google.com: domain of mgorman@techsingularity.net designates 81.17.249.39 as permitted sender) smtp.mailfrom=mgorman@techsingularity.net Received: from mail.blacknight.com (pemlinmail03.blacknight.ie [81.17.254.16]) by outbound-smtp06.blacknight.com (Postfix) with ESMTPS id 47FF198852 for ; Wed, 24 Apr 2019 14:19:38 +0000 (UTC) Received: (qmail 21430 invoked from network); 24 Apr 2019 14:19:38 -0000 Received: from unknown (HELO techsingularity.net) (mgorman@techsingularity.net@[37.228.225.79]) by 81.17.254.9 with ESMTPSA (AES256-SHA encrypted, authenticated); 24 Apr 2019 14:19:38 -0000 Date: Wed, 24 Apr 2019 15:19:36 +0100 From: Mel Gorman To: Mike Rapoport Cc: x86@kernel.org, Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Christoph Hellwig , Matthew Wilcox , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] x86/Kconfig: make SPARSEMEM default for 32-bit Message-ID: <20190424141936.GU18914@techsingularity.net> References: <1556112252-9339-1-git-send-email-rppt@linux.ibm.com> <1556112252-9339-2-git-send-email-rppt@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <1556112252-9339-2-git-send-email-rppt@linux.ibm.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, Apr 24, 2019 at 04:24:11PM +0300, Mike Rapoport wrote: > Sparsemem has been a default memory model for x86-64 for over a decade > since the commit b263295dbffd ("x86: 64-bit, make sparsemem vmemmap the > only memory model"). > > Make it the default for 32-bit NUMA systems (if there any left) as well. > > Signed-off-by: Mike Rapoport Acked-by: Mel Gorman -- Mel Gorman SUSE Labs