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=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 376D9C433E2 for ; Wed, 16 Sep 2020 00:41:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 00F6420770 for ; Wed, 16 Sep 2020 00:41:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=bytedance-com.20150623.gappssmtp.com header.i=@bytedance-com.20150623.gappssmtp.com header.b="LPFGIiaO" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726068AbgIPAlO (ORCPT ); Tue, 15 Sep 2020 20:41:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48988 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726608AbgIONDq (ORCPT ); Tue, 15 Sep 2020 09:03:46 -0400 Received: from mail-pl1-x641.google.com (mail-pl1-x641.google.com [IPv6:2607:f8b0:4864:20::641]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B012AC0611C1 for ; Tue, 15 Sep 2020 06:03:45 -0700 (PDT) Received: by mail-pl1-x641.google.com with SMTP id e4so1309869pln.10 for ; Tue, 15 Sep 2020 06:03:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=sz6P1Q0kau3GSnlYNyXI0z5mzhU/+ZiSkY10ScUrzyk=; b=LPFGIiaOonFtAsxKer4O1k4VDV/21wx6IGQBP/yW9jfBQCdIAz+nqS5J+q/bUqf1If PxixgYwuqbNpW7u/oclZ3AwhyIwiahOwnzbqvso+VW0dseDH++h8Sm68KIxO6fybwu1y 2W2atiKWeVJ78swW8ou9DyBrzIUeFQVHFU50PO7At9ZNrwfMyZuXvXIpIKk+/K4nC3WL nsVRCcm1tI11TDeDMHaQf4ISI9bDV+JtqFxIFIFkFsUWbbe+DJ60tSjxcU1GcEFLVMRh k5Uah3dz5Cee6AHxCCYK6C3aSYmyjOsx2nAhQmWIXlDXlEQ7NgVVy7GObE49ohiQ+vmo h8aQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=sz6P1Q0kau3GSnlYNyXI0z5mzhU/+ZiSkY10ScUrzyk=; b=rftCO4DgOJ8RdAymRIbOWgKq9dPKn67ZFFhsX/Fuc598pZSQrpWtU4oKey2uNScIaV /M6gyvBmGSlx6slU6ipc9M+yxYqc4z3bPGnXSVVVDkiMOfFWELgR+9jDlxOZ1Ua+Wa1w Wjh7E9R8isVCC3TU+6/vJtubpdvKPmlJfsCxls16eMHmvBvSG9sShXZgS3bNaXbrkuDE 8+55mSM9OmdqRqWAXNbkU+m1fdchWOVi9OweQbj2aOr7MSH7k4Fb5ee0vgpJxCt6ACva hFfhvBwAVZaLOc4fH9TEaY2FyxCgcZ4ziJuHxtIIMa+Iooiz0pkeR3r17mmi3SJ65a4/ FSgg== X-Gm-Message-State: AOAM53062bWD7m661LVZCdLkPkTjARDJ7kBjbXF0x/hDYwehMJuEStzU qRTLEgkCumO9f/KsozyAj1H2qQ== X-Google-Smtp-Source: ABdhPJyoZylboM7Gk4ZA72/1F4sZ9fvO9eKvsVO0QDYpNOSzflVchD8LbsJYKSeiSua9Y3Pi+z1jXQ== X-Received: by 2002:a17:90a:1f43:: with SMTP id y3mr3977140pjy.28.1600175025206; Tue, 15 Sep 2020 06:03:45 -0700 (PDT) Received: from localhost.bytedance.net ([103.136.220.66]) by smtp.gmail.com with ESMTPSA id w185sm14269855pfc.36.2020.09.15.06.03.35 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 15 Sep 2020 06:03:44 -0700 (PDT) From: Muchun Song To: corbet@lwn.net, mike.kravetz@oracle.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com, dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org, viro@zeniv.linux.org.uk, akpm@linux-foundation.org, paulmck@kernel.org, mchehab+huawei@kernel.org, pawan.kumar.gupta@linux.intel.com, rdunlap@infradead.org, oneukum@suse.com, anshuman.khandual@arm.com, jroedel@suse.de, almasrymina@google.com, rientjes@google.com Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Muchun Song Subject: [RFC PATCH 22/24] mm/hugetlb: Implement vmemmap_pmd_mkhuge macro Date: Tue, 15 Sep 2020 20:59:45 +0800 Message-Id: <20200915125947.26204-23-songmuchun@bytedance.com> X-Mailer: git-send-email 2.21.0 (Apple Git-122) In-Reply-To: <20200915125947.26204-1-songmuchun@bytedance.com> References: <20200915125947.26204-1-songmuchun@bytedance.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In vmemmap_populate_hugepages(), we use PAGE_KERNEL_LARGE for huge page mapping. So we can inplement vmemmap_pmd_mkhuge macro to do that. Signed-off-by: Muchun Song --- arch/x86/include/asm/hugetlb.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h index 7c3eb60c2198..9f9e19dd0578 100644 --- a/arch/x86/include/asm/hugetlb.h +++ b/arch/x86/include/asm/hugetlb.h @@ -15,6 +15,14 @@ static inline bool vmemmap_pmd_huge(pmd_t *pmd) { return pmd_large(*pmd); } + +#define vmemmap_pmd_mkhuge vmemmap_pmd_mkhuge +static inline pmd_t vmemmap_pmd_mkhuge(struct page *page) +{ + pte_t entry = pfn_pte(page_to_pfn(page), PAGE_KERNEL_LARGE); + + return __pmd(pte_val(entry)); +} #endif #define hugepages_supported() boot_cpu_has(X86_FEATURE_PSE) -- 2.20.1