From: Tuukka Tikkanen <[email protected]> This patch rearranges a if-return-elsif-goto-fi-return sequence into if-return-fi-if-return-fi-goto sequence. The functionality remains the same. Also, a lengthy comment that did not describe the functionality in the order it occurs is split into half and top half is moved closer to actual implementation it describes.
Signed-off-by: Tuukka Tikkanen <[email protected]> --- drivers/cpuidle/governors/menu.c | 28 +++++++++++++++------------- 1 file changed, 15 insertions(+), 13 deletions(-) diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index c8ab1c5..b13d57c 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -228,14 +228,6 @@ again: do_div(stddev, divisor); stddev = int_sqrt(stddev); /* - * If we have outliers to the upside in our distribution, discard - * those by setting the threshold to exclude these outliers, then - * calculate the average and standard deviation again. Once we get - * down to the bottom 3/4 of our samples, stop excluding samples. - * - * This can deal with workloads that have long pauses interspersed - * with sporadic activity with a bunch of short pauses. - * * The typical interval is obtained when standard deviation is small * or standard deviation is small compared to the average interval. * @@ -246,12 +238,22 @@ again: if (data->expected_us > avg) data->predicted_us = avg; return; - - } else if ((divisor * 4) > INTERVALS * 3) { - /* Exclude the max interval */ - thresh = max - 1; - goto again; } + + /* + * If we have outliers to the upside in our distribution, discard + * those by setting the threshold to exclude these outliers, then + * calculate the average and standard deviation again. Once we get + * down to the bottom 3/4 of our samples, stop excluding samples. + * + * This can deal with workloads that have long pauses interspersed + * with sporadic activity with a bunch of short pauses. + */ + if ((divisor * 4) <= INTERVALS * 3) + return; + + thresh = max - 1; + goto again; } /** -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
