Re: mm: delay rmap removal until after TLB flush

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To: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Subject: Re: mm: delay rmap removal until after TLB flush
From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Date: Wed, 2 Nov 2022 13:45:41 +0100
Cc: Will Deacon <will@xxxxxxxxxx>, Aneesh Kumar <aneesh.kumar@xxxxxxxxxxxxx>, Nick Piggin <npiggin@xxxxxxxxx>, Heiko Carstens <hca@xxxxxxxxxxxxx>, Vasily Gorbik <gor@xxxxxxxxxxxxx>, Alexander Gordeev <agordeev@xxxxxxxxxxxxx>, Christian Borntraeger <borntraeger@xxxxxxxxxxxxx>, Sven Schnelle <svens@xxxxxxxxxxxxx>, Nadav Amit <nadav.amit@xxxxxxxxx>, Jann Horn <jannh@xxxxxxxxxx>, John Hubbard <jhubbard@xxxxxxxxxx>, X86 ML <x86@xxxxxxxxxx>, Matthew Wilcox <willy@xxxxxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, kernel list <linux-kernel@xxxxxxxxxxxxxxx>, Linux-MM <linux-mm@xxxxxxxxx>, Andrea Arcangeli <aarcange@xxxxxxxxxx>, "Kirill A . Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>, Joerg Roedel <jroedel@xxxxxxx>, Uros Bizjak <ubizjak@xxxxxxxxx>, Alistair Popple <apopple@xxxxxxxxxx>, linux-arch <linux-arch@xxxxxxxxxxxxxxx>
In-reply-to: <CAHk-=wjjXQP7PTEXO4R76WPy1zfQad_DLKw1GKU_4yWW1N4n7w@mail.gmail.com>
References: <CAHk-=wjzngbbwHw4nAsqo_RpyOtUDk5G+Wus=O0w0A6goHvBWA@mail.gmail.com> <CAHk-=wijU_YHSZq5N7vYK+qHPX0aPkaePaGOyWk4aqMvvSXxJA@mail.gmail.com> <140B437E-B994-45B7-8DAC-E9B66885BEEF@gmail.com> <CAHk-=wjX_P78xoNcGDTjhkgffs-Bhzcwp-mdsE1maeF57Sh0MA@mail.gmail.com> <CAHk-=wio=UKK9fX4z+0CnyuZG7L+U9OB7t7Dcrg4FuFHpdSsfw@mail.gmail.com> <CAHk-=wgz0QQd6KaRYQ8viwkZBt4xDGuZTFiTB8ifg7E3F2FxHg@mail.gmail.com> <CAHk-=wiwt4LC-VmqvYrphraF0=yQV=CQimDCb0XhtXwk8oKCCA@mail.gmail.com> <Y1+XCALog8bW7Hgl@hirez.programming.kicks-ass.net> <CAHk-=wjnvPA7mi-E3jVEfCWXCNJNZEUjm6XODbbzGOh9c8mhgw@mail.gmail.com> <CAHk-=wjjXQP7PTEXO4R76WPy1zfQad_DLKw1GKU_4yWW1N4n7w@mail.gmail.com>

On Mon, Oct 31, 2022 at 11:43:30AM -0700, Linus Torvalds wrote:

>     https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/?h=mmu_gather-race-fix


Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>

References:
- Re: [PATCH 01/13] mm: Update ptep_get_lockless()s comment
  - From: Linus Torvalds
- Re: [PATCH 01/13] mm: Update ptep_get_lockless()s comment
  - From: Linus Torvalds
- Re: [PATCH 01/13] mm: Update ptep_get_lockless()s comment
  - From: Nadav Amit
- Re: [PATCH 01/13] mm: Update ptep_get_lockless()s comment
  - From: Linus Torvalds
- Re: [PATCH 01/13] mm: Update ptep_get_lockless()s comment
  - From: Linus Torvalds
- Re: [PATCH 01/13] mm: Update ptep_get_lockless()s comment
  - From: Linus Torvalds
- Re: [PATCH 01/13] mm: Update ptep_get_lockless()s comment
  - From: Linus Torvalds
- Re: [PATCH 01/13] mm: Update ptep_get_lockless()s comment
  - From: Peter Zijlstra
- Re: [PATCH 01/13] mm: Update ptep_get_lockless()s comment
  - From: Linus Torvalds
- mm: delay rmap removal until after TLB flush
  - From: Linus Torvalds

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