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=-10.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 15627C4707F for ; Thu, 27 May 2021 17:49:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EA935613AB for ; Thu, 27 May 2021 17:49:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235399AbhE0Rux (ORCPT ); Thu, 27 May 2021 13:50:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:44336 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229791AbhE0Ruu (ORCPT ); Thu, 27 May 2021 13:50:50 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 4F3036135C; Thu, 27 May 2021 17:49:16 +0000 (UTC) Date: Thu, 27 May 2021 18:49:13 +0100 From: Catalin Marinas To: Anshuman Khandual Cc: linux-arm-kernel@lists.infradead.org, Will Deacon , Andrew Morton , David Hildenbrand , Mike Rapoport , linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH] arm64/mm: Drop HAVE_ARCH_PFN_VALID Message-ID: <20210527174913.GJ8661@arm.com> References: <1621947349-25421-1-git-send-email-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1621947349-25421-1-git-send-email-anshuman.khandual@arm.com> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 25, 2021 at 06:25:49PM +0530, Anshuman Khandual wrote: > CONFIG_SPARSEMEM_VMEMMAP is now the only available memory model on arm64 > platforms and free_unused_memmap() would just return without creating any > holes in the memmap mapping. There is no need for any special handling in > pfn_valid() and HAVE_ARCH_PFN_VALID can just be dropped. This also moves > the pfn upper bits sanity check into generic pfn_valid(). > > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Andrew Morton > Cc: David Hildenbrand > Cc: Mike Rapoport > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-kernel@vger.kernel.org > Cc: linux-mm@kvack.org > Acked-by: Mike Rapoport > Acked-by: David Hildenbrand > Signed-off-by: Anshuman Khandual Acked-by: Catalin Marinas