On Thu, Sep 10, 2015 at 03:07:48AM +0800, Yuyang Du wrote: > On Tue, Sep 08, 2015 at 02:52:05PM +0200, Peter Zijlstra wrote: > > > > +#if (SCHED_LOAD_SHIFT - SCHED_LOAD_RESOLUTION) != 10 || > > SCHED_CAPACITY_SHIFT != 10 > > +#error "load tracking assumes 2^10 as unit" > > +#endif > > + > > Sorry for late response. I might already missed somthing. > > But I got a bit lost here, with: > > #define SCHED_LOAD_SHIFT (10 + SCHED_LOAD_RESOLUTION) > #define SCHED_CAPACITY_SHIFT 10 > > the #if is certainly false.
That is intended, triggering #error would be 'bad'. The reason for this bit is to raise a stink if someone 'accidentally' changes one of these values and expects things to just work. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
