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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: List-Subscribe: List-Unsubscribe: On 20-Jun-25 12:09 PM, Huang, Ying wrote: > Bharata B Rao writes: > > > I don't think page flag + scanning is a good idea.If the If extended page flags is not the ideal location (I chose it in this version only to get something going quickly), we can look at maintaining per-pfn allocation for the required hot page metadata separately. Or is your concern specifically with scanning? What problems do you see? It is the cost or the possibility of not identifying the migrate-ready pages in time? Or something else?? Regards, Bharata.