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.
