On Thu, Jun 15, 2017 at 09:23:02AM -0600, Jens Axboe wrote: > And then I remembered why fadvise _sucks_. It returns the error value > directly. So 0 is success > 0 is some error. That does not work well > for adding a set/get interface. Additionally, with fadvise, we have > to overload either 'offset' or 'length' for the write hint for the > set operation. Not super pretty. > > Any objections to making the auxiliary interface fcntl(2) based? > That would be a cleaner fit, imho. fcntl sounds fine to me.