On Sat, Feb 29, 2020 at 6:34 AM Ira Weiny <ira.weiny@xxxxxxxxx> wrote: > > On Fri, Feb 28, 2020 at 07:32:29PM +0800, Pingfan Liu wrote: > > FOLL_LONGTERM suggests a pin which is going to be given to hardware and > > can't move. It would truncate CMA permanently and should be excluded. > > I don't understand what is 'truncated' here? a pinned page will truncate a continuous area, and prevent CMA to reclaim the continuous area. > > I generally agree with Jason that this is going to be confusing to the user. Please see the reply in anothe mail. Thanks, Pingfan [...]
