On Tue, Sep 06, 2022 at 10:23:41AM -0700, Dan Williams wrote: > > Can we continue to have the weird page->refcount behavior and still > > change the other things? > > No at a minimum the pgmap vs page->refcount problem needs to be solved > first. So who will do the put page after the PTE/PMD's are cleared out? In the normal case the tlb flusher does it integrated into zap.. Can we safely have the put page in the fsdax side after the zap? Jason