From patchwork Fri May 8 03:07:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anshuman Khandual X-Patchwork-Id: 11535367 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8EAD21392 for ; Fri, 8 May 2020 03:08:56 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6905F20725 for ; Fri, 8 May 2020 03:08:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="aOoT7gAC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6905F20725 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=+yWGDVGgJDej7/5em0pMbDRtxhBNBcZofFAsbJHkUWc=; b=aOo T7gACzUryHYe5Ny3pNscBf3082eXz/rDGoynxBsAVkLoFNLc/JtNH672dl99iFv1realaRxa9qN+s b9OVhrAWbCMBrbX7rcg9Dlhu01obQFcBgmFkkmHRCc0v7n2RpL7ZERC+qTMNkAtYJxImstLXqFuXO M5tVMSZXZoGSl65WhSc2fhmufAdmT71a/0XLJbbStQB3gBqHK157u2TZn9+NiKgZR2Fb6IXoytd00 xSeVDXWU0F035i2VcfZjqKxceEU7MWCZPTW4tXiceHSlq5OH+IkOWJTTVFucJrDnnylCORvcx0187 r4XBMqVFjz6/Ji6rGLsXDCIs1vuzE+Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jWtNd-0000g2-7C; Fri, 08 May 2020 03:08:53 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jWtNa-0000ek-JC; Fri, 08 May 2020 03:08:52 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id DE7031FB; Thu, 7 May 2020 20:08:46 -0700 (PDT) Received: from p8cg001049571a15.arm.com (unknown [10.163.73.155]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id D557C3F305; Thu, 7 May 2020 20:08:36 -0700 (PDT) From: Anshuman Khandual To: linux-mm@kvack.org, akpm@linux-foundation.org Subject: [PATCH V3 0/3] mm/hugetlb: Add some new generic fallbacks Date: Fri, 8 May 2020 08:37:48 +0530 Message-Id: <1588907271-11920-1-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200507_200850_718815_B09A9302 X-CRM114-Status: GOOD ( 11.45 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [217.140.110.172 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rich Felker , linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, Catalin Marinas , Heiko Carstens , linux-kernel@vger.kernel.org, "James E.J. Bottomley" , Paul Mackerras , "H. Peter Anvin" , sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org, Will Deacon , linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, Yoshinori Sato , Michael Ellerman , Helge Deller , x86@kernel.org, Russell King , Christian Borntraeger , Ingo Molnar , Benjamin Herrenschmidt , Fenghua Yu , Vasily Gorbik , Anshuman Khandual , Thomas Bogendoerfer , Borislav Petkov , Paul Walmsley , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Tony Luck , linux-parisc@vger.kernel.org, linux-mips@vger.kernel.org, Palmer Dabbelt , linuxppc-dev@lists.ozlabs.org, "David S. Miller" , Mike Kravetz MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This series adds the following new generic fallbacks. Before that it drops __HAVE_ARCH_HUGE_PTEP_GET from arm64 platform. 1. is_hugepage_only_range() 2. arch_clear_hugepage_flags() This has been boot tested on arm64 and x86 platforms but built tested on some more platforms including the changed ones here. This series applies on v5.7-rc4. After this arm (32 bit) remains the sole platform defining it's own huge_ptep_get() via __HAVE_ARCH_HUGE_PTEP_GET. Changes in V3: - Added READ_ONCE() in generic huge_ptep_get() per Will Changes in V2: (https://patchwork.kernel.org/project/linux-mm/list/?series=282947) - Adopted "#ifndef func" method (adding a single symbol to namespace) per Andrew - Updated the commit messages in [PATCH 2/3] and [PATCH 3/3] as required Changes in V1: (https://patchwork.kernel.org/project/linux-mm/list/?series=270677) Cc: Russell King Cc: Catalin Marinas Cc: Will Deacon Cc: Tony Luck Cc: Fenghua Yu Cc: Thomas Bogendoerfer Cc: "James E.J. Bottomley" Cc: Helge Deller Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: Paul Walmsley Cc: Palmer Dabbelt Cc: Heiko Carstens Cc: Vasily Gorbik Cc: Christian Borntraeger Cc: Yoshinori Sato Cc: Rich Felker Cc: "David S. Miller" Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: "H. Peter Anvin" Cc: Mike Kravetz Cc: Andrew Morton Cc: x86@kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-ia64@vger.kernel.org Cc: linux-mips@vger.kernel.org Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-riscv@lists.infradead.org Cc: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: linux-mm@kvack.org Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Anshuman Khandual (3): arm64/mm: Drop __HAVE_ARCH_HUGE_PTEP_GET mm/hugetlb: Define a generic fallback for is_hugepage_only_range() mm/hugetlb: Define a generic fallback for arch_clear_hugepage_flags() arch/arm/include/asm/hugetlb.h | 7 +------ arch/arm64/include/asm/hugetlb.h | 13 +------------ arch/ia64/include/asm/hugetlb.h | 5 +---- arch/mips/include/asm/hugetlb.h | 11 ----------- arch/parisc/include/asm/hugetlb.h | 10 ---------- arch/powerpc/include/asm/hugetlb.h | 5 +---- arch/riscv/include/asm/hugetlb.h | 10 ---------- arch/s390/include/asm/hugetlb.h | 8 +------- arch/sh/include/asm/hugetlb.h | 7 +------ arch/sparc/include/asm/hugetlb.h | 10 ---------- arch/x86/include/asm/hugetlb.h | 10 ---------- include/asm-generic/hugetlb.h | 2 +- include/linux/hugetlb.h | 14 ++++++++++++++ 13 files changed, 21 insertions(+), 91 deletions(-)