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See http://www.infradead.org/rpr.html X-Rspam-User: X-Rspamd-Queue-Id: 6F914C0011 X-Stat-Signature: yo3tpeejw845i9h7j35tu11c3ud91ui8 X-Rspamd-Server: rspam06 X-HE-Tag: 1741792637-32392 X-HE-Meta: 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 U6w8+j46 q2C4Ed/kLeORYZQEc+SADcWOiPdsXZTFW1jD+RFIAlm32zAw/R56MNm1JBWH9au5nSSmFS9/vsYQBuVQxMf+XkodbMqSTW0GLdU+2bG6X59AzzwQUCjntsW+cK/tumcfGclfDs8XFDQYj2+Ws2Go16mehq7hNlL8OT65Fgxt0ux4BZpGkxS2x0G01JAmuzAwdrmCByDRSspz/gq2I+qrioGLV8rviyO0onu7Dy2zVkoYI+n5hcIiaVKBQhlypypxc4hE76VkhRNSIdxHXIl7n6dtzC4a4Jai/D4mxfFFs3A1GuWI= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000002, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, Mar 06, 2025 at 06:28:40PM -0800, Suren Baghdasaryan wrote: > I think this will help you only when the pages are faulted in but if > __get_user_pages() finds an already mapped page which happens to be > allocated from CMA, it will not migrate it. So, you might still end up > with unmovable pages inside CMA. Direct I/O pages are not unmovable. They are temporarily pinned for the duration of the direct I/O. I really don't understand what problem you're trying to fix here.