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=-12.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED 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 56FD8C04EB9 for ; Wed, 5 Dec 2018 18:06:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2940C20892 for ; Wed, 5 Dec 2018 18:06:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2940C20892 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=zytor.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728122AbeLESGC (ORCPT ); Wed, 5 Dec 2018 13:06:02 -0500 Received: from terminus.zytor.com ([198.137.202.136]:41195 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727349AbeLESGC (ORCPT ); Wed, 5 Dec 2018 13:06:02 -0500 Received: from terminus.zytor.com (localhost [127.0.0.1]) by terminus.zytor.com (8.15.2/8.15.2) with ESMTPS id wB5I5cPv1375408 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 5 Dec 2018 10:05:38 -0800 Received: (from tipbot@localhost) by terminus.zytor.com (8.15.2/8.15.2/Submit) id wB5I5blL1375405; Wed, 5 Dec 2018 10:05:37 -0800 Date: Wed, 5 Dec 2018 10:05:37 -0800 X-Authentication-Warning: terminus.zytor.com: tipbot set sender to tipbot@zytor.com using -f From: tip-bot for Dan Williams Message-ID: Cc: dave.hansen@linux.intel.com, bigeasy@linutronix.de, kirill.shutemov@linux.intel.com, mingo@kernel.org, tglx@linutronix.de, luto@kernel.org, torvalds@linux-foundation.org, dan.j.williams@intel.com, hpa@zytor.com, peterz@infradead.org, linux-kernel@vger.kernel.org, riel@surriel.com, bp@alien8.de Reply-To: peterz@infradead.org, torvalds@linux-foundation.org, hpa@zytor.com, dan.j.williams@intel.com, linux-kernel@vger.kernel.org, bp@alien8.de, riel@surriel.com, kirill.shutemov@linux.intel.com, dave.hansen@linux.intel.com, bigeasy@linutronix.de, tglx@linutronix.de, luto@kernel.org, mingo@kernel.org In-Reply-To: <154395943153.32119.1733586547359626311.stgit@dwillia2-desk3.amr.corp.intel.com> References: <154395943153.32119.1733586547359626311.stgit@dwillia2-desk3.amr.corp.intel.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/mm] generic/pgtable: Introduce {p4d,pgd}_same() Git-Commit-ID: 0cebbb60f759a709dabb3c87b9704f9844878850 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 0cebbb60f759a709dabb3c87b9704f9844878850 Gitweb: https://git.kernel.org/tip/0cebbb60f759a709dabb3c87b9704f9844878850 Author: Dan Williams AuthorDate: Tue, 4 Dec 2018 13:37:11 -0800 Committer: Ingo Molnar CommitDate: Wed, 5 Dec 2018 09:03:06 +0100 generic/pgtable: Introduce {p4d,pgd}_same() In preparation for introducing '_safe' versions of page table entry 'set' helpers, introduce generic versions of p4d_same() and pgd_same(). Signed-off-by: Dan Williams Acked-by: Kirill A. Shutemov Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Dave Hansen Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Rik van Riel Cc: Sebastian Andrzej Siewior Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/154395943153.32119.1733586547359626311.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Ingo Molnar --- include/asm-generic/pgtable.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h index eea50ef8b8cd..dae7f98babed 100644 --- a/include/asm-generic/pgtable.h +++ b/include/asm-generic/pgtable.h @@ -386,6 +386,20 @@ static inline int pud_same(pud_t pud_a, pud_t pud_b) } #endif +#ifndef __HAVE_ARCH_P4D_SAME +static inline int p4d_same(p4d_t p4d_a, p4d_t p4d_b) +{ + return p4d_val(p4d_a) == p4d_val(p4d_b); +} +#endif + +#ifndef __HAVE_ARCH_PGD_SAME +static inline int pgd_same(pgd_t pgd_a, pgd_t pgd_b) +{ + return pgd_val(pgd_a) == pgd_val(pgd_b); +} +#endif + #ifndef __HAVE_ARCH_DO_SWAP_PAGE /* * Some architectures support metadata associated with a page. When a