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.
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