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[209.85.208.46]) by smtp.gmail.com with ESMTPSA id l18-20020a056402345200b00506935b7c75sm8457055edc.69.2023.04.27.20.03.36 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 27 Apr 2023 20:03:36 -0700 (PDT) Received: by mail-ed1-f46.google.com with SMTP id 4fb4d7f45d1cf-506c04dd879so16120749a12.3 for ; Thu, 27 Apr 2023 20:03:36 -0700 (PDT) X-Received: by 2002:aa7:ca51:0:b0:509:f221:cedc with SMTP id j17-20020aa7ca51000000b00509f221cedcmr3189721edt.35.1682651016171; Thu, 27 Apr 2023 20:03:36 -0700 (PDT) MIME-Version: 1.0 References: <20230427153345.451d86681f9c6775ea579e5a@linux-foundation.org> In-Reply-To: <20230427153345.451d86681f9c6775ea579e5a@linux-foundation.org> From: Linus Torvalds Date: Thu, 27 Apr 2023 20:03:19 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [GIT PULL] MM updates for 6.4-rc1 To: Andrew Morton , Suren Baghdasaryan Cc: mm-commits@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Lorenzo Stoakes , Vlastimil Babka Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 499064000F X-Stat-Signature: tink187o9cjqk18m4u1wpy7nr3b173dg X-Rspam-User: X-HE-Tag: 1682651019-793847 X-HE-Meta: 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 ompoAtAr 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Apr 27, 2023 at 3:33=E2=80=AFPM Andrew Morton wrote: > > - Suren Baghdasaryan has improved mmap_lock scalability by switching to > per-VMA locking. .. related to this, we have that new PER_VMA_LOCK_STATS config entry, which is 'default y' and has basically no help test. Please don't do that. I don't think any of the VM debugging stuff should likely be 'default y' in the first place, but if they are, they should most definitely have a good *explanation* for why they should be on for a normal user. Linus