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[23.128.96.18]) by mx.google.com with ESMTP id v2si8429588edq.434.2020.09.21.10.45.18; Mon, 21 Sep 2020 10:45:41 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=bZyYgvBm; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728072AbgIURnU (ORCPT + 99 others); Mon, 21 Sep 2020 13:43:20 -0400 Received: from mail.kernel.org ([198.145.29.99]:50462 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727248AbgIURnU (ORCPT ); Mon, 21 Sep 2020 13:43:20 -0400 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (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 3932C20BED; Mon, 21 Sep 2020 17:43:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600710200; bh=cKsg3hVBq8JmOrVbzOqJFlMVUVoBqKhQpJuOU8riZ5w=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=bZyYgvBmKfZafOxEhG2K4ORoS3NEEMdspfjYl1vEVg3HOT6ZU9h9MfGFZSDDW6Woi gAJqaHEVxKi6HKTncc3Vct29nwp2hQYwT44hPDj2RpazfmZ3W4XyakP/Nh/plx2jvJ LTo1ntQ9HIOiZEeW5jyZgK/OaeoGYlyNg2F6E9mE= Date: Mon, 21 Sep 2020 18:43:15 +0100 From: Will Deacon To: sudaraja@codeaurora.org Cc: Anshuman Khandual , Steven Price , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Catalin Marinas , Mark Rutland , Logan Gunthorpe , David Hildenbrand , Andrew Morton , pratikp@codeaurora.org Subject: Re: [PATCH] arm64/mm: add fallback option to allocate virtually contiguous memory Message-ID: <20200921174313.GA3141@willie-the-truck> References: <01010174769e2b68-a6f3768e-aef8-43c7-b357-a8cb1e17d3eb-000000@us-west-2.amazonses.com> <145c57a3-1753-3ff8-4353-3bf7bac0b7de@arm.com> <0101017479c7063b-aec9b77c-4f0f-41b6-84e6-f91a5ed1f3f6-000000@us-west-2.amazonses.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0101017479c7063b-aec9b77c-4f0f-41b6-84e6-f91a5ed1f3f6-000000@us-west-2.amazonses.com> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 10, 2020 at 08:48:40PM +0000, sudaraja@codeaurora.org wrote: > On 2020-09-10 03:50, Anshuman Khandual wrote: > > The proposed patch tried to mix both approaches. Regardless, the first > > approach > > here seems better and is the case in vmemmap_populate_hugepages() > > implementation > > on x86 as well. > > The 1st approach looks more cleaner compared to bailing out in first > failure, unmapping all previously mapped sections and map entire request > with vmemmap_populate_basepages. Thanks for the review and suggestion - will > send over a cleaner patch soon. Did you send an updated version of this? The threading has gone wonky in my mail client, so I may have missed it. Will