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=-14.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 40967C4707F for ; Tue, 25 May 2021 18:59:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 26C616141B for ; Tue, 25 May 2021 18:59:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232372AbhEYTAa (ORCPT ); Tue, 25 May 2021 15:00:30 -0400 Received: from mail.kernel.org ([198.145.29.99]:44604 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232116AbhEYTA2 (ORCPT ); Tue, 25 May 2021 15:00:28 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 961A06140F; Tue, 25 May 2021 18:58:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1621969138; bh=KzKnoImOLNccv4mlMLsCqgSTZzzfpkJ4SZQgCF6lEwk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Rya4BE3muXcmPcZPPxxgdt8sV6pjoHlRXycLLtO4nJDahzzL104sp8sDXUJX1hmWk /4KwfS/+/8YnyvV1gYsxX2d9Rl5YgtilWrxNonvHtXD/fXLlqBqPDQNcHS14CsobCg SVQ8ccX4NIvyWK8nQBNSpSQ0QVpa6NA6JMZT9RSJEvKrB1YCmqOdBEvq2tjdKAZmLh Avoi2Mjr4IT2mPhKaslpK9JZuQ0vr8DFc2uqRFi/15YTzgE4LY4iOWLF+DZBCxJcmq J2p9VnufJE74nI3SHj/yzh1MTe1Y27Pw/zMvVkvcMGd+NAbCvTovcxU0G9hIgqqLgz COFO41AR24iMg== From: Will Deacon To: Anshuman Khandual , linux-arm-kernel@lists.infradead.org Cc: catalin.marinas@arm.com, kernel-team@android.com, Will Deacon , Mark Rutland , linux-kernel@vger.kernel.org Subject: Re: [PATCH] arm64/mm: Remove [PUD|PMD]_TABLE_BIT from [pud|pmd]_bad() Date: Tue, 25 May 2021 19:58:42 +0100 Message-Id: <162196589876.2316489.9040188054395172704.b4-ty@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <1620644871-26280-1-git-send-email-anshuman.khandual@arm.com> References: <1620644871-26280-1-git-send-email-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 10 May 2021 16:37:51 +0530, Anshuman Khandual wrote: > Semantics wise, [pud|pmd]_bad() have always implied that a given [PUD|PMD] > entry does not have a pointer to the next level page table. This had been > made clear in the commit a1c76574f345 ("arm64: mm: use *_sect to check for > section maps"). Hence explicitly check for a table entry rather than just > testing a single bit. This basically redefines [pud|pmd]_bad() in terms of > [pud|pmd]_table() making the semantics clear. Applied to arm64 (for-next/mm), thanks! [1/1] arm64/mm: Remove [PUD|PMD]_TABLE_BIT from [pud|pmd]_bad() https://git.kernel.org/arm64/c/e377ab82311a Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev