From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ot1-f69.google.com (mail-ot1-f69.google.com [209.85.210.69]) by kanga.kvack.org (Postfix) with ESMTP id 118976B0003 for ; Wed, 10 Oct 2018 23:53:19 -0400 (EDT) Received: by mail-ot1-f69.google.com with SMTP id l89-v6so5329395otc.6 for ; Wed, 10 Oct 2018 20:53:19 -0700 (PDT) Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com. [148.163.156.1]) by mx.google.com with ESMTPS id c4si12691421otj.21.2018.10.10.20.53.17 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 10 Oct 2018 20:53:17 -0700 (PDT) Received: from pps.filterd (m0098394.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w9B3mqLQ057667 for ; Wed, 10 Oct 2018 23:53:16 -0400 Received: from e34.co.us.ibm.com (e34.co.us.ibm.com [32.97.110.152]) by mx0a-001b2d01.pphosted.com with ESMTP id 2n1ubv7dhw-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 10 Oct 2018 23:53:16 -0400 Received: from localhost by e34.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 10 Oct 2018 21:53:16 -0600 From: "Aneesh Kumar K.V" Subject: [PATCH 0/5] NestMMU pte upgrade workaround for mprotect and autonuma Date: Thu, 11 Oct 2018 09:22:42 +0530 Message-Id: <20181011035247.30687-1-aneesh.kumar@linux.ibm.com> Sender: owner-linux-mm@kvack.org List-ID: To: akpm@linux-foundation.org, mpe@ellerman.id.au, benh@kernel.crashing.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, "Aneesh Kumar K.V" We can upgrade pte access (R -> RW transition) via mprotect or autonuma. We need to make sure we follow the recommended pte update sequence as outlined in commit: bd5050e38aec ("powerpc/mm/radix: Change pte relax sequence to handle nest MMU hang") for such updates. This patch series do that. Aneesh Kumar K.V (5): mm: Update ptep_modify_prot_start/commit to take vm_area_struct as arg mm: update ptep_modify_prot_commit to take old pte value as arg arch/powerpc/mm: Nest MMU workaround for mprotect/autonuma RW upgrade. mm/hugetlb: Add prot_modify_start/commit sequence for hugetlb update arch/powerpc/mm/hugetlb: NestMMU workaround for hugetlb mprotect RW upgrade arch/powerpc/include/asm/book3s/64/hugetlb.h | 8 +++++ arch/powerpc/include/asm/book3s/64/pgtable.h | 18 ++++++++++ arch/powerpc/include/asm/hugetlb.h | 2 +- arch/powerpc/mm/hugetlbpage.c | 35 ++++++++++++++++++++ arch/powerpc/mm/pgtable-book3s64.c | 34 +++++++++++++++++++ arch/s390/include/asm/pgtable.h | 5 +-- arch/s390/mm/pgtable.c | 8 +++-- arch/x86/include/asm/paravirt.h | 9 +++-- fs/proc/task_mmu.c | 8 +++-- include/asm-generic/pgtable.h | 10 +++--- include/linux/hugetlb.h | 18 ++++++++++ mm/hugetlb.c | 8 +++-- mm/memory.c | 8 ++--- mm/mprotect.c | 6 ++-- 14 files changed, 150 insertions(+), 27 deletions(-) -- 2.17.1