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Groups > linux.kernel > #1700656

[PATCH v2 0/4] fix several TLB batch races

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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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[PATCH v2 0/4] fix several TLB batch races Minchan Kim <minchan@kernel.org> - 2017-08-01 08:00 +0200
  Re: [PATCH v2 0/4] fix several TLB batch races Andrew Morton <akpm@linux-foundation.org> - 2017-08-02 00:30 +0200

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