On Wed, May 09, 2018 at 11:49:06AM +0200, Peter Zijlstra wrote:
> On Mon, May 07, 2018 at 05:01:33PM -0400, Johannes Weiner wrote:
> > +static inline unsigned long
> > +fixed_power_int(unsigned long x, unsigned int frac_bits, unsigned int n)
> > +{
> > + unsigned long result = 1UL << frac_bits;
> > +
> > + if (n) {
> > + for (;;) {
> > + if (n & 1) {
> > + result *= x;
> > + result += 1UL << (frac_bits - 1);
> > + result >>= frac_bits;
> > + }
> > + n >>= 1;
> > + if (!n)
> > + break;
> > + x *= x;
> > + x += 1UL << (frac_bits - 1);
> > + x >>= frac_bits;
> > + }
> > + }
> > +
> > + return result;
> > +}
>
> No real objection; but that does look a wee bit fat for an inline I
> suppose.
Fair enough, I'll put these back where I found them and make
calc_load_n() extern instead.
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