Logan Gunthorpe wrote: > In order to add checks for P2PDMA memory into try_grab_page(), expand > the error return from a bool to an int/error code. Update all the > callsites handle change in usage. > > Also remove the WARN_ON_ONCE() call at the callsites seeing there > already is a WARN_ON_ONCE() inside the function if it fails. Looks good, Reviewed-by: Dan Williams <dan.j.williams@xxxxxxxxx>