On Thu, Nov 08 2018 at 10:42am -0500, Jens Axboe <axboe@xxxxxxxxx> wrote: > Returns true if the queue currently has requests pending, > false if not. > > DM can use this to replace the atomic_inc/dec they do per device > to see if a device is busy. > > Cc: Mike Snitzer <snitzer@xxxxxxxxxx> > Signed-off-by: Jens Axboe <axboe@xxxxxxxxx> Reviewed-by: Mike Snitzer <snitzer@xxxxxxxxxx>