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[198.145.29.99]) by mx.google.com with ESMTPS id j17si1277906pfn.278.2019.06.12.18.54.51 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 12 Jun 2019 18:54:51 -0700 (PDT) Received-SPF: pass (google.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) client-ip=198.145.29.99; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=r8JdgWt2; spf=pass (google.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org Received: from localhost.localdomain (c-73-223-200-170.hsd1.ca.comcast.net [73.223.200.170]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A68BF208CA; Thu, 13 Jun 2019 01:54:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560390891; bh=GXivTwKQk8Y+X5xE03CN8fthnLjjz3AlLtUYgE6QieY=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=r8JdgWt24mLYxAVnydiRtAdlx+xRwCOlsBeGXcMQy1oJV3B/cDxN+OnDejmpSyIV6 RcIibyipNA+YGPuxHDsGF+U/AKFps7DbsQDuq1Fpc/BUfIrexokv2IP71eCmwXk283 fI0rscTQw/skUc8NwPguKxlABRXZDgasoljgBWxA= Date: Wed, 12 Jun 2019 18:54:50 -0700 From: Andrew Morton To: David Hildenbrand Cc: Anshuman Khandual , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, catalin.marinas@arm.com, will.deacon@arm.com, ard.biesheuvel@arm.com, osalvador@suse.de, mhocko@suse.com, mark.rutland@arm.com Subject: Re: [PATCH V5 - Rebased] mm/hotplug: Reorder memblock_[free|remove]() calls in try_remove_memory() Message-Id: <20190612185450.73841b9f5af3a4189de6f910@linux-foundation.org> In-Reply-To: <67f5c5ad-d753-77d8-8746-96cf4746b3e0@redhat.com> References: <36e0126f-e2d1-239c-71f3-91125a49e019@redhat.com> <1560252373-3230-1-git-send-email-anshuman.khandual@arm.com> <20190611151908.cdd6b73fd17fda09b1b3b65b@linux-foundation.org> <5b4f1f19-2f8d-9b8f-4240-7b728952b6fe@arm.com> <67f5c5ad-d753-77d8-8746-96cf4746b3e0@redhat.com> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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, 12 Jun 2019 08:53:33 +0200 David Hildenbrand wrote: > >>> ... > >>> > >>> > >>> - Rebased on linux-next (next-20190611) > >> > >> Yet the patch you've prepared is designed for 5.3. Was that > >> deliberate, or should we be targeting earlier kernels? > > > > It was deliberate for 5.3 as a preparation for upcoming reworked arm64 hot-remove. > > > > We should probably add to the patch description something like "This is > a preparation for arm64 memory hotremove. The described issue is not > relevant on other architectures." Please. And is there any reason to merge it separately? Can it be [patch 1/3] in the "arm64/mm: Enable memory hot remove" series?