On Fri, Jun 28, 2019 at 11:44:35AM -0700, Dan Williams wrote: > There is a problem with the series in CH's tree. It removes the > ->page_free() callback from the release_pages() path because it goes > too far and removes the put_devmap_managed_page() call. release_pages only called put_devmap_managed_page for device public pages. So I can't see how that is in any way a problem.