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Message-ID: <CAHk-=wjFdzHxB+f9WOTM1jZKBig9sY0s_-ASCZEUGsQ1mirjgQ@mail.gmail.com>
Date:   Tue, 8 Nov 2022 12:18:47 -0800
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Konstantin Ryabitsev <mricon@...nel.org>
Cc:     Johannes Weiner <hannes@...xchg.org>,
        Hugh Dickins <hughd@...gle.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Will Deacon <will@...nel.org>,
        Aneesh Kumar <aneesh.kumar@...ux.ibm.com>,
        Nick Piggin <npiggin@...il.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Sven Schnelle <svens@...ux.ibm.com>,
        Nadav Amit <nadav.amit@...il.com>,
        Jann Horn <jannh@...gle.com>,
        John Hubbard <jhubbard@...dia.com>, X86 ML <x86@...nel.org>,
        Matthew Wilcox <willy@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        kernel list <linux-kernel@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>,
        Andrea Arcangeli <aarcange@...hat.com>,
        "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
        Joerg Roedel <jroedel@...e.de>,
        Uros Bizjak <ubizjak@...il.com>,
        Alistair Popple <apopple@...dia.com>,
        linux-arch <linux-arch@...r.kernel.org>
Subject: Re: mm: delay rmap removal until after TLB flush

On Tue, Nov 8, 2022 at 12:03 PM Konstantin Ryabitsev <mricon@...nel.org> wrote:
>
> Yes, --no-parent.

Ahh, that's new. I guess I need to update my ancient b4-0.8.0 install..

But yes, with that, and the manual parent lookup (because otherwise
"--no-parent" will fetch *just* the patch itself, not even walking up
the single parent chain). it works.

Maybe a "--single-parent" or "--deadbeat-parent" option would be a good idea?

Anyway, with a more recent b4 version, the command

   b4 am --no-parent
CAHk-=wh6MxaCA4pXpt1F5Bn2__6MxCq0Dr-rES4i=MOL9ibjpg@...l.gmail.com

gets that series and only that series.

              Linus

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