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=-8.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 E79A2C5519F for ; Sat, 14 Nov 2020 12:16:58 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 903D122240 for ; Sat, 14 Nov 2020 12:16:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="HFgtr9vy" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 903D122240 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=NnwCYgdYqTiJStJTmoSy0Tidfdl44AyRJ+qrEtQl078=; b=HFgtr9vyauUsEJ8P63izL2VaO MDuQebVFI4w0fCTpQu+dtA2gzqgHQrWp99BbZt/i5G9s2A9Z66M6LqHTB6x6lGOSMNWhh6J+DxnXw GUxZiZQH+Ol2EiHbyhPUIeORhMYL0BpJRH+mjw530WLMO7AmHDS/PO8QQWVO4GM6Z0VLy1c/8CUh3 2HDuBF4YdZShReDWJ9QdIYnug8IMCKZcgjRI6hD8a34JDi/Rqby/5Sr14oYBZ5I8NufOMzn2WfbXE m3HoFnPq8lLAOG7x9wioJONbGtnYAcAwRbm2pu/1iasvtlYg/eak47RO494LKvRN3w27ooxhhJyu7 E4ZXUdTHA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kduSm-0003jc-FG; Sat, 14 Nov 2020 12:15:28 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kduSj-0003ib-BH; Sat, 14 Nov 2020 12:15:26 +0000 Received: from gaia (unknown [2.26.170.190]) (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 4D4BE221EB; Sat, 14 Nov 2020 12:15:20 +0000 (UTC) Date: Sat, 14 Nov 2020 12:15:17 +0000 From: Catalin Marinas To: Mike Rapoport Subject: Re: [PATCH v2 09/13] arm, arm64: move free_unused_memmap() to generic mm Message-ID: <20201114121516.GA2837@gaia> References: <20201101170454.9567-1-rppt@kernel.org> <20201101170454.9567-10-rppt@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20201101170454.9567-10-rppt@kernel.org> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201114_071525_483152_C88F3D4D X-CRM114-Status: GOOD ( 14.64 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-ia64@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, Will Deacon , Greg Ungerer , Jonathan Corbet , Meelis Roos , Russell King , Mike Rapoport , Geert Uytterhoeven , Matt Turner , linux-snps-arc@lists.infradead.org, Alexey Dobriyan , linux-m68k@lists.linux-m68k.org, John Paul Adrian Glaubitz , linux-arm-kernel@lists.infradead.org, Michael Schmitz , Tony Luck , Vineet Gupta , linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org, linux-fsdevel@vger.kernel.org, Andrew Morton Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Sun, Nov 01, 2020 at 07:04:50PM +0200, Mike Rapoport wrote: > From: Mike Rapoport > > ARM and ARM64 free unused parts of the memory map just before the > initialization of the page allocator. To allow holes in the memory map both > architectures overload pfn_valid() and define HAVE_ARCH_PFN_VALID. > > Allowing holes in the memory map for FLATMEM may be useful for small > machines, such as ARC and m68k and will enable those architectures to cease > using DISCONTIGMEM and still support more than one memory bank. > > Move the functions that free unused memory map to generic mm and enable > them in case HAVE_ARCH_PFN_VALID=y. > > Signed-off-by: Mike Rapoport For arm64: Acked-by: Catalin Marinas _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel