Right now, to access the rate sample without a kernel patch, we use code that only works on kernel versions 4.13 <= version < 4.16. Since the kernel patch has been merged into 4.19, we should remove this code that calculates the rate sample (or atleast put header guards around it) and say we support only 4.19 or greater or forward -> or are backwards compatible with 4.13 < v < 4.16.
Right now, to access the rate sample without a kernel patch, we use code that only works on kernel versions 4.13 <= version < 4.16. Since the kernel patch has been merged into 4.19, we should remove this code that calculates the rate sample (or atleast put header guards around it) and say we support only 4.19 or greater or forward -> or are backwards compatible with 4.13 < v < 4.16.