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 D75ECC433DB for ; Mon, 8 Mar 2021 18:01:07 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 7E43E652AB for ; Mon, 8 Mar 2021 18:01:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7E43E652AB 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 0989B8D0053; Mon, 8 Mar 2021 13:01:07 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 0700D8D001D; Mon, 8 Mar 2021 13:01:07 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id EA0E58D0053; Mon, 8 Mar 2021 13:01:06 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0151.hostedemail.com [216.40.44.151]) by kanga.kvack.org (Postfix) with ESMTP id CDF3B8D001D for ; Mon, 8 Mar 2021 13:01:06 -0500 (EST) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 7FE94181AF5EA for ; Mon, 8 Mar 2021 18:01:06 +0000 (UTC) X-FDA: 77897473332.13.21DD82A Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf12.hostedemail.com (Postfix) with ESMTP id 0FEEE3746 for ; Mon, 8 Mar 2021 18:01:01 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id C38EE652AB; Mon, 8 Mar 2021 18:01:00 +0000 (UTC) Date: Mon, 8 Mar 2021 18:00:58 +0000 From: Catalin Marinas To: Anshuman Khandual Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Will Deacon , Ard Biesheuvel , Mark Rutland , James Morse , Robin Murphy , =?iso-8859-1?B?Suly9G1l?= Glisse , Dan Williams , David Hildenbrand , Mike Rapoport , Veronika Kabatova Subject: Re: [PATCH V3 2/2] arm64/mm: Reorganize pfn_valid() Message-ID: <20210308180057.GH15644@arm.com> References: <1614921898-4099-1-git-send-email-anshuman.khandual@arm.com> <1614921898-4099-3-git-send-email-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1614921898-4099-3-git-send-email-anshuman.khandual@arm.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 0FEEE3746 X-Stat-Signature: dgtk3meejsxmdirk9d6sqxb9rgsyrqm3 Received-SPF: none (kernel.org>: No applicable sender policy available) receiver=imf12; identity=mailfrom; envelope-from=""; helo=mail.kernel.org; client-ip=198.145.29.99 X-HE-DKIM-Result: none/none X-HE-Tag: 1615226461-271469 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 Fri, Mar 05, 2021 at 10:54:58AM +0530, Anshuman Khandual wrote: > There are multiple instances of pfn_to_section_nr() and __pfn_to_section() > when CONFIG_SPARSEMEM is enabled. This can be optimized if memory section > is fetched earlier. This replaces the open coded PFN and ADDR conversion > with PFN_PHYS() and PHYS_PFN() helpers. While there, also add a comment. > This does not cause any functional change. > > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Ard Biesheuvel > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-kernel@vger.kernel.org > Reviewed-by: David Hildenbrand > Signed-off-by: Anshuman Khandual Acked-by: Catalin Marinas