From patchwork Thu Mar 5 06:50:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anshuman Khandual X-Patchwork-Id: 11421237 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 F30DF14E3 for ; Thu, 5 Mar 2020 06:50:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DD6722166E for ; Thu, 5 Mar 2020 06:50:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725914AbgCEGuh (ORCPT ); Thu, 5 Mar 2020 01:50:37 -0500 Received: from foss.arm.com ([217.140.110.172]:43770 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725818AbgCEGuh (ORCPT ); Thu, 5 Mar 2020 01:50:37 -0500 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 0A9561FB; Wed, 4 Mar 2020 22:50:36 -0800 (PST) Received: from p8cg001049571a15.arm.com (unknown [10.163.1.88]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id E134A3F534; Wed, 4 Mar 2020 22:54:23 -0800 (PST) From: Anshuman Khandual To: linux-mm@kvack.org Cc: hughd@google.com, vbabka@suse.cz, Anshuman Khandual , linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, uclinux-h8-devel@lists.sourceforge.jp, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, nios2-dev@lists.rocketboards.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org Subject: [PATCH 0/2] mm/vma: some new flags Date: Thu, 5 Mar 2020 12:20:12 +0530 Message-Id: <1583391014-8170-1-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org The motivation here is to consolidate VMA flag combinations commonly used across platforms and reduce code duplication while making it uncluttered in general. This first introduces a default VM_DATA_DEFAULT_FLAGS which platforms can easily fall back on without requiring to define any similar data flag combinations as they currently do. This also adds some more common data flag combinations which are generally used when the platforms decide to override the default. The second patch consolidates VM_READ, VM_WRITE, VM_EXEC as VM_ACCESS_FLAGS extending the existing VMA accessibility concept via vma_is_accessibility(). VM_ACCESS_FLAGS replaces many other instances which used check all three VMA access flags simultaneously. This series is based on v5.6-rc4 after applying these. 1. https://patchwork.kernel.org/cover/11399319/ 2. https://patchwork.kernel.org/patch/11399379/ Changes in V1: - Dropped the [PATCH 3/3] which was adding more vma_is_* wrappers - Used VM_DATA_FLAGS_EXEC for VM_DATA_DEFAULT_FLAGS instead per Vlastimil - Dropped init use cases for VM_ACCESS_FLAGS as suggested by Vlastimil Changes in RFC: (https://patchwork.kernel.org/project/linux-mm/list/?series=249733) Cc: linux-alpha@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-c6x-dev@linux-c6x.org Cc: uclinux-h8-devel@lists.sourceforge.jp Cc: linux-hexagon@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-mips@vger.kernel.org Cc: nios2-dev@lists.rocketboards.org Cc: openrisc@lists.librecores.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-um@lists.infradead.org Cc: linux-xtensa@linux-xtensa.org Cc: linux-mm@kvack.org Anshuman Khandual (2): mm/vma: Define a default value for VM_DATA_DEFAULT_FLAGS mm/vma: Introduce VM_ACCESS_FLAGS arch/alpha/include/asm/page.h | 3 --- arch/arc/include/asm/page.h | 2 +- arch/arm/include/asm/page.h | 4 +--- arch/arm/mm/fault.c | 2 +- arch/arm64/include/asm/page.h | 4 +--- arch/arm64/mm/fault.c | 2 +- arch/c6x/include/asm/page.h | 5 +---- arch/csky/include/asm/page.h | 3 --- arch/h8300/include/asm/page.h | 2 -- arch/hexagon/include/asm/page.h | 3 +-- arch/ia64/include/asm/page.h | 5 +---- arch/m68k/include/asm/page.h | 3 --- arch/microblaze/include/asm/page.h | 2 -- arch/mips/include/asm/page.h | 5 +---- arch/nds32/include/asm/page.h | 3 --- arch/nds32/mm/fault.c | 2 +- arch/nios2/include/asm/page.h | 3 +-- arch/openrisc/include/asm/page.h | 5 ----- arch/parisc/include/asm/page.h | 3 --- arch/powerpc/include/asm/page.h | 9 ++------- arch/powerpc/include/asm/page_64.h | 7 ++----- arch/powerpc/mm/book3s64/pkeys.c | 2 +- arch/riscv/include/asm/page.h | 3 +-- arch/s390/include/asm/page.h | 3 +-- arch/s390/mm/fault.c | 2 +- arch/sh/include/asm/page.h | 3 --- arch/sparc/include/asm/page_32.h | 3 --- arch/sparc/include/asm/page_64.h | 3 --- arch/unicore32/include/asm/page.h | 3 --- arch/unicore32/mm/fault.c | 2 +- arch/x86/include/asm/page_types.h | 4 +--- arch/x86/mm/pkeys.c | 2 +- arch/x86/um/asm/vm-flags.h | 10 ++-------- arch/xtensa/include/asm/page.h | 3 --- drivers/staging/gasket/gasket_core.c | 2 +- include/linux/mm.h | 20 +++++++++++++++++++- mm/mmap.c | 2 +- mm/mprotect.c | 4 ++-- 38 files changed, 47 insertions(+), 101 deletions(-)