On Wed 03-04-19 07:35:08, Dave Chinner wrote: > On Tue, Apr 02, 2019 at 11:20:44AM +0200, Jan Kara wrote: > > On Mon 01-04-19 16:08:21, Dave Chinner wrote: > > > On Fri, Mar 29, 2019 at 01:23:48PM +0530, Kanchan Joshi wrote: > > > > + if(streamid > nr_streams) > > > > + streamid = 0; > > > > > > So, basically, we'll compress all the kernel hints down to "no hint" > > > if there are more user streams than the device supports? > > > > > > Surely we should be reserving a stream for the kernel hints separate > > > from the user and "none" streams when we have limited device streams > > > available... > > > > The question is what to do in a situation when the device has exactly as > > many hints as we currently offer to userspace. > > Then do what we do now for that case. For every other case, the > kernel should have reserved space and not get intermingled with > userspace hints. Yup, we are on the same page then. Honza -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR