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=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 312F5C47089 for ; Thu, 27 May 2021 17:49:20 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D26C5613CC for ; Thu, 27 May 2021 17:49:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D26C5613CC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 61CC36B006E; Thu, 27 May 2021 13:49:19 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5F2116B0070; Thu, 27 May 2021 13:49:19 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4E14D6B0071; Thu, 27 May 2021 13:49:19 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0100.hostedemail.com [216.40.44.100]) by kanga.kvack.org (Postfix) with ESMTP id 1D7BC6B006E for ; Thu, 27 May 2021 13:49:19 -0400 (EDT) Received: from smtpin37.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id B44891801BB66 for ; Thu, 27 May 2021 17:49:18 +0000 (UTC) X-FDA: 78187747596.37.05255F7 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf18.hostedemail.com (Postfix) with ESMTP id 1173920009B6 for ; Thu, 27 May 2021 17:49:10 +0000 (UTC) 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) Authentication-Results: imf18.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=arm.com (policy=none); spf=pass (imf18.hostedemail.com: domain of cmarinas@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=cmarinas@kernel.org X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 1173920009B6 X-Stat-Signature: phq6hfbgwqfbb3swxtn3nww4z7bb7tmt X-HE-Tag: 1622137750-433202 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 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