On Mon, Apr 9, 2018 at 3:32 PM, Jens Axboe <axboe@xxxxxxxxx> wrote: > > The resulting min/max and friends would have been trivial to test, but > clearly they weren't. Well, the min/max macros themselves actually were tested in user space by me. It was the interaction with the unrelated "min_not_zero()" that wasn't ;) It's easy in hind-sight to say "that's not at all unrelated", but within the context of doing min/max, it was. Linus