On Mon, Feb 10, 2025 at 04:17:41PM +0900, Byungchul Park wrote: > On Mon, Feb 10, 2025 at 01:00:02AM -0500, Gregory Price wrote: > > > > You can probably actually (maybe?) collect data on this today - but > > you still have to contend with #2 and #3. > > Ah. You seem to mean those works should be serialized. Right? If it > should be for some reason, then it could be sensible. > I'm suggesting that there isn't a strong reason (yet) to consider such a complicated change. As Willy has said, it's a fairly fundamental change for a single-reason (CXL), which does not bode well for its acceptance. Honestly trying to save you some frustration. It would behoove you to find stronger reasons (w/ data) or consider different solutions. Right now there are stronger, simplers solutions to the ZONE_NORMAL capacity issue (struct page resize, huge pages) for possible capacities. I also think someone should actively ask whether `struct page` can be hosted on remote memory without performance loss. I may look into this. ~Gregory
