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[203.219.56.12]) by smtp.gmail.com with ESMTPSA id v7sm3153207pjg.34.2021.09.02.17.46.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Sep 2021 17:46:23 -0700 (PDT) Date: Fri, 03 Sep 2021 10:46:18 +1000 From: Nicholas Piggin Subject: Re: [patch 119/212] lazy tlb: shoot lazies, a non-refcounting lazy tlb option To: Andrew Morton , Linus Torvalds Cc: Anton Blanchard , Benjamin Herrenschmidt , Linux-MM , Andy Lutomirski , mm-commits@vger.kernel.org, Paul Mackerras , Randy Dunlap References: <20210902215620._WXglfIJy%akpm@linux-foundation.org> <18b7e206-9ee6-4afe-b662-9dcbdf55a9db@www.fastmail.com> <20210902155330.a643b03dc6991cde53133edf@linux-foundation.org> In-Reply-To: <20210902155330.a643b03dc6991cde53133edf@linux-foundation.org> MIME-Version: 1.0 Message-Id: <1630629747.odrw4rffkd.astroid@bobo.none> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org Excerpts from Andrew Morton's message of September 3, 2021 8:53 am: > On Thu, 2 Sep 2021 15:50:03 -0700 Linus Torvalds wrote: >=20 >> On Thu, Sep 2, 2021 at 3:29 PM Andy Lutomirski wrote: >> > >> > This pile is: >> > >> > Nacked-by: Andy Lutomirski >>=20 >> Can you specify exactly the range you want me to drop? >>=20 >> I assume it's the four patches 117-120, ie >>=20 >> lazy tlb: introduce lazy mm refcount helper functions >> lazy tlb: allow lazy tlb mm refcounting to be configurable >> lazy tlb: shoot lazies, a non-refcounting lazy tlb option >> powerpc/64s: enable MMU_LAZY_TLB_SHOOTDOWN >>=20 >> but I just want to double-check before I do surgery on that series. >=20 > Yes, those 4. >=20 > Sorry, I missed that email thread... >=20 That's not reasonable. Andy has had complete misunderstandings about the series which seems to stem from x86's horrible hacks that have gone in has confused him. My series doesn't affect x86 at all and it's no reason why Andy's series to improve x86 can't be merged later. But that half finished series he=20 keeps threatening with has been sitting there for almost a year now and=20 it's gone nowhere, while there have been no unresolved technical=20 objections to mine, it works, it's simple and small. I've kept trying to offer to help Andy with reviewing his stuff or fix=20 the horrible x86 hacks, but nothing. So Un-Nacked-by: Nicholas Piggin Thanks, Nick