Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Sun, 6 Nov 2022 15:14:16 -0800
From:   Andrew Morton <akpm@linux-foundation.org>
To:     Linus Torvalds <torvalds@linux-foundation.org>
Cc:     Hugh Dickins <hughd@google.com>,
        Johannes Weiner <hannes@cmpxchg.org>,
        Stephen Rothwell <sfr@canb.auug.org.au>,
        Alexander Gordeev <agordeev@linux.ibm.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Will Deacon <will@kernel.org>,
        Aneesh Kumar <aneesh.kumar@linux.ibm.com>,
        Nick Piggin <npiggin@gmail.com>,
        Heiko Carstens <hca@linux.ibm.com>,
        Vasily Gorbik <gor@linux.ibm.com>,
        Christian Borntraeger <borntraeger@linux.ibm.com>,
        Sven Schnelle <svens@linux.ibm.com>,
        Nadav Amit <nadav.amit@gmail.com>,
        Jann Horn <jannh@google.com>,
        John Hubbard <jhubbard@nvidia.com>, X86 ML <x86@kernel.org>,
        Matthew Wilcox <willy@infradead.org>,
        kernel list <linux-kernel@vger.kernel.org>,
        Linux-MM <linux-mm@kvack.org>,
        Andrea Arcangeli <aarcange@redhat.com>,
        "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
        Joerg Roedel <jroedel@suse.de>,
        Uros Bizjak <ubizjak@gmail.com>,
        Alistair Popple <apopple@nvidia.com>,
        linux-arch <linux-arch@vger.kernel.org>
Subject: Re: mm: delay rmap removal until after TLB flush
Message-Id: <20221106151416.bc2f942f237de31b6c577e70@linux-foundation.org>
In-Reply-To: <CAHk-=wgvx5sDaOfCTMkVpZ9+-iFCeh5AOML5aJG1EiR0+e1aBQ@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>
        <Y2SyJuohLFLqIhlZ@li-4a3a4a4c-28e5-11b2-a85c-a8d192c6f089.ibm.com>
        <CAHk-=wjzp65=-QE1dg8KfqG-tVHiT+yAfHXGx9sro=8yOceELg@mail.gmail.com>
        <8a1e97c9-bd5-7473-6da8-2aa75198fbe8@google.com>
        <CAHk-=wgvx5sDaOfCTMkVpZ9+-iFCeh5AOML5aJG1EiR0+e1aBQ@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Precedence: bulk

On Sun, 6 Nov 2022 14:34:51 -0800 Linus Torvalds <torvalds@linux-foundation.org> wrote:

> > mm-unstable (bad)
> > -----------------
> > Aside from that PageAnon issue, mm-unstable is in an understandably bad
> > state because you could not have foreseen my subpages_mapcount addition
> > to page_remove_rmap().  page_zap_pte_rmap() now needs to handle the
> > PageCompound (but not the "compound") case too.  I rushed you and akpm
> > an emergency patch for that on Friday night, but you, let's say, had
> > reservations about it.  So I haven't posted it, and while the PageAnon
> > issue remains, I think your patchset has to be removed from mm-unstable
> > and linux-next anyway.
> 
> So I think I'm fine with your patch, I just want to move the memcg
> accounting to outside of it.
> 
> I can re-do my series on top of mm-unstable, I guess. That's probably
> the easiest way to handle this all.
> 
> Andrew - can you remove those patches again, and I'll create a new
> series for you?

Yes, I've removed both serieses and shall push the tree out within half
an hour from now.