Re: [PATCH 5/7] sched: loadavg: make calc_load_n() public

[Peter Zijlstra]

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.