Also, there was an off-by-one error in the calculation, that was addressed upstream in https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b0a182f875689647b014bc01d36b340217792852 .
Also, there was an off-by-one error in the calculation, that was addressed upstream in https:/ /git.kernel. org/pub/ scm/linux/ kernel/ git/torvalds/ linux.git/ commit/ ?id=b0a182f8756 89647b014bc01d3 6b340217792852 .