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[109.81.20.172]) by smtp.gmail.com with UTF8SMTPSA id a640c23a62f3a-af635b42027sm422277066b.143.2025.07.28.05.54.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Jul 2025 05:54:03 -0700 (PDT) Date: Mon, 28 Jul 2025 14:54:02 +0200 From: Michal Hocko To: David Hildenbrand Cc: Oscar Salvador , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Hannes Reinecke Subject: Re: [RFC] Disable auto_movable_ratio for selfhosted memmap Message-ID: References: <2f24e725-cddb-41c5-ba87-783930efb2aa@redhat.com> <79919ace-9cd2-4600-9615-6dc26ba19e19@redhat.com> <1f8d924d-3554-43a6-a75e-66a08d1ce7b9@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1f8d924d-3554-43a6-a75e-66a08d1ce7b9@redhat.com> On Mon 28-07-25 14:27:01, David Hildenbrand wrote: > On 28.07.25 14:17, Michal Hocko wrote: [...] > > In other words what would break if we didn't expose CXL memory through > > memory blocks in sysfs? > > I think the whole libdaxctl handling for onlining memory is based on that. I am not familiar with libdaxctl so bear with me. What exactly from the existing sysfs interface does it need? -- Michal Hocko SUSE Labs