Re: mm: delay rmap removal until after TLB flush

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To: Christian Borntraeger <borntraeger@xxxxxxxxxxxxx>, Gerald Schaefer <gerald.schaefer@xxxxxxxxxxxxx>
Subject: Re: mm: delay rmap removal until after TLB flush
From: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date: Wed, 2 Nov 2022 11:28:01 -0700
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>, 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>, 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-=wja5+tuvbV6vzJSbLBWSR8--WUq-ss0j0K-JQXe_EsqhQ@mail.gmail.com>
References: <B88D3073-440A-41C7-95F4-895D3F657EF2@gmail.com> <CAHk-=wgzT1QsSCF-zN+eS06WGVTBg4sf=6oTMg95+AEq7QrSCQ@mail.gmail.com> <47678198-C502-47E1-B7C8-8A12352CDA95@gmail.com> <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> <50458458-9b57-aa5a-0d67-692cc4dbf2ad@linux.ibm.com> <CAHk-=wja5+tuvbV6vzJSbLBWSR8--WUq-ss0j0K-JQXe_EsqhQ@mail.gmail.com>

On Wed, Nov 2, 2022 at 10:55 AM Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> So I'll do that minimal fix and update that branch, but if s390 people
> end up having a better fix, please holler.

I've updated the branch with that, so hopefully s390 builds now.

I also fixed a typo in the commit message and added Peter's ack. Other
than that it's all the same it was before.

                 Linus

References:
- 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: 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: 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
- Re: mm: delay rmap removal until after TLB flush
  - From: Christian Borntraeger
- Re: mm: delay rmap removal until after TLB flush
  - From: Linus Torvalds

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