From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751678AbdG1GmD (ORCPT ); Fri, 28 Jul 2017 02:42:03 -0400 Received: from LGEAMRELO11.lge.com ([156.147.23.51]:40917 "EHLO lgeamrelo11.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751614AbdG1GmC (ORCPT ); Fri, 28 Jul 2017 02:42:02 -0400 X-Original-SENDERIP: 156.147.1.127 X-Original-MAILFROM: minchan@kernel.org X-Original-SENDERIP: 10.177.220.163 X-Original-MAILFROM: minchan@kernel.org From: Minchan Kim To: Andrew Morton Cc: kernel-team , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Rik van Riel , Minchan Kim Subject: [PATCH 0/3] fix several TLB batch races Date: Fri, 28 Jul 2017 15:41:49 +0900 Message-Id: <1501224112-23656-1-git-send-email-minchan@kernel.org> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Nadav and Mel founded several subtle races caused by TLB batching. This patchset aims for solving thoses problems using embedding [set|clear]_tlb_flush_pending to TLB batching API. With that, places to know TLB flush pending catch it up by using mm_tlb_flush_pending. Each patch includes detailed description. This patchset is based on v4.13-rc2-mmots-2017-07-26-16-16 + revert: "mm: prevent racy access to tlb_flush_pending" + adding: "[PATCH v3 0/2] mm: fixes of tlb_flush_pending races". Minchan Kim (3): mm: make tlb_flush_pending global mm: fix MADV_[FREE|DONTNEED] TLB flush miss problem mm: fix KSM data corruption arch/arm/include/asm/tlb.h | 15 ++++++++++++++- arch/ia64/include/asm/tlb.h | 12 ++++++++++++ arch/s390/include/asm/tlb.h | 15 +++++++++++++++ arch/sh/include/asm/tlb.h | 4 +++- arch/um/include/asm/tlb.h | 8 ++++++++ fs/proc/task_mmu.c | 4 +++- include/linux/mm_types.h | 22 +++++----------------- kernel/fork.c | 2 -- mm/debug.c | 2 -- mm/ksm.c | 3 ++- mm/memory.c | 24 ++++++++++++------------ 11 files changed, 74 insertions(+), 37 deletions(-) -- 2.7.4