From: Minchan Kim <minchan@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
kernel-team <kernel-team@lge.com>,
Minchan Kim <minchan@kernel.org>
Subject: [PATCH v2 0/4] fix several TLB batch races
Date: Tue, 1 Aug 2017 14:56:13 +0900 [thread overview]
Message-ID: <1501566977-20293-1-git-send-email-minchan@kernel.org> (raw)
Nadav and Mel founded several subtle races caused by TLB batching.
This patchset aims for solving thoses problems using embedding
[inc|dec]_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-2017-07-28-16-10 +
"[PATCH v5 0/3] mm: fixes of tlb_flush_pending races" from Nadav
* from v1
* TLB batching API separation core part from arch specific one - Mel
* introduce mm_tlb_flush_nested - Mel
Minchan Kim (4):
mm: refactoring TLB gathering API
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 | 11 ++++++--
arch/ia64/include/asm/tlb.h | 8 ++++--
arch/s390/include/asm/tlb.h | 17 ++++++++-----
arch/sh/include/asm/tlb.h | 8 +++---
arch/um/include/asm/tlb.h | 13 +++++++---
fs/proc/task_mmu.c | 4 ++-
include/asm-generic/tlb.h | 7 ++---
include/linux/mm_types.h | 35 ++++++++++---------------
mm/debug.c | 2 --
mm/ksm.c | 3 ++-
mm/memory.c | 62 +++++++++++++++++++++++++++++++--------------
11 files changed, 107 insertions(+), 63 deletions(-)
--
2.7.4
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next reply other threads:[~2017-08-01 5:56 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-01 5:56 Minchan Kim [this message]
2017-08-01 5:56 ` [PATCH v2 1/4] mm: refactoring TLB gathering API Minchan Kim
2017-08-01 10:30 ` Mel Gorman
2017-08-02 0:46 ` Nadav Amit
2017-08-02 0:53 ` Minchan Kim
2017-08-02 0:56 ` Minchan Kim
2017-08-01 5:56 ` [PATCH v2 2/4] mm: make tlb_flush_pending global Minchan Kim
2017-08-01 10:31 ` Mel Gorman
2017-08-01 5:56 ` [PATCH v2 3/4] mm: fix MADV_[FREE|DONTNEED] TLB flush miss problem Minchan Kim
2017-08-01 10:59 ` Mel Gorman
2017-08-01 5:56 ` [PATCH v2 4/4] mm: fix KSM data corruption Minchan Kim
2017-08-01 19:21 ` Nadav Amit
2017-08-02 0:58 ` Minchan Kim
2017-08-01 19:33 ` Andrea Arcangeli
2017-08-02 0:58 ` Minchan Kim
2017-08-01 22:29 ` [PATCH v2 0/4] fix several TLB batch races Andrew Morton
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