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[82.69.66.36]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-485885b7bfasm43514538f8f.29.2026.09.09.03.38.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Sep 2026 03:38:38 -0700 (PDT) Date: Wed, 9 Sep 2026 11:38:36 +0100 From: David Laight To: "Lorenzo Stoakes (ARM)" Cc: Johannes Weiner , Zi Yan , "Vlastimil Babka (SUSE)" , Nimrod Oren , Andrew Morton , David Hildenbrand , Baolin Wang , "Liam R. Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Usama Arif , Kiryl Shutsemau , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Hugh Dickins , Nirmoy Das , Dragos Tatulea , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3] mm: remove min_free_kbytes adjustment for THP Message-ID: <20260909113836.6cbe8d17@pumpkin> In-Reply-To: References: <20260901190123.3511535-1-noren@nvidia.com> X-Mailer: Claws Mail 4.1.1 (GTK 3.24.38; arm-unknown-linux-gnueabihf) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 2E4B0A000D X-Stat-Signature: mcdzewsutomr3tajnmd1keqaou3pdksk X-Rspam-User: X-HE-Tag: 1788950320-149095 X-HE-Meta: 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 yY1u3hou 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, 9 Sep 2026 09:11:04 +0100 "Lorenzo Stoakes (ARM)" wrote: > On Tue, Sep 08, 2026 at 03:30:30PM -0400, Johannes Weiner wrote: > > On Tue, Sep 08, 2026 at 08:24:38AM -0400, Zi Yan wrote: > > > On Tue Sep 8, 2026 at 7:54 AM EDT, Vlastimil Babka (SUSE) wrote: > > > > Given neither of the patchset versions achieved universal acceptance, could > > > > we try just disabling all the automatic (re)calculations of min_free_kbytes > > > > the first moment the sysctl gets adjusted from userspace? > > > > > > Sounds good to me. Johannes, WDYT? > > > > +1 That sounds good to me as well. > > Me also! :>) You might want some method of restoring the default behaviour. Maybe setting to 0 can be used (if that is just silly). David > > -- > Cheers, Lorenzo >