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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2023-12-21 19:10:40 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-12-21 19:10:40 -0500 |
| commit | 93241a1c9a7dbef987f524a9dea3fc61e87e845b (patch) | |
| tree | af89381c5c4c4938b03fe27b9d61e45e08f7432d /libbcachefs/mean_and_variance.c | |
| parent | 2b97686ffa5f714a970ad88aa40cf47bdb998094 (diff) | |
Update bcachefs sources to 5d0a6c2b32f1 bcachefs: check_directory_structure() can now be run online
Diffstat (limited to 'libbcachefs/mean_and_variance.c')
| -rw-r--r-- | libbcachefs/mean_and_variance.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/libbcachefs/mean_and_variance.c b/libbcachefs/mean_and_variance.c index 1f0801e2..bf0ef668 100644 --- a/libbcachefs/mean_and_variance.c +++ b/libbcachefs/mean_and_variance.c @@ -62,6 +62,7 @@ EXPORT_SYMBOL_GPL(u128_div); /** * mean_and_variance_get_mean() - get mean from @s + * @s: mean and variance number of samples and their sums */ s64 mean_and_variance_get_mean(struct mean_and_variance s) { @@ -71,6 +72,7 @@ EXPORT_SYMBOL_GPL(mean_and_variance_get_mean); /** * mean_and_variance_get_variance() - get variance from @s1 + * @s1: mean and variance number of samples and sums * * see linked pdf equation 12. */ @@ -89,6 +91,7 @@ EXPORT_SYMBOL_GPL(mean_and_variance_get_variance); /** * mean_and_variance_get_stddev() - get standard deviation from @s + * @s: mean and variance number of samples and their sums */ u32 mean_and_variance_get_stddev(struct mean_and_variance s) { @@ -98,8 +101,8 @@ EXPORT_SYMBOL_GPL(mean_and_variance_get_stddev); /** * mean_and_variance_weighted_update() - exponentially weighted variant of mean_and_variance_update() - * @s1: .. - * @s2: .. + * @s: mean and variance number of samples and their sums + * @x: new value to include in the &mean_and_variance_weighted * * see linked pdf: function derived from equations 140-143 where alpha = 2^w. * values are stored bitshifted for performance and added precision. @@ -129,6 +132,7 @@ EXPORT_SYMBOL_GPL(mean_and_variance_weighted_update); /** * mean_and_variance_weighted_get_mean() - get mean from @s + * @s: mean and variance number of samples and their sums */ s64 mean_and_variance_weighted_get_mean(struct mean_and_variance_weighted s) { @@ -138,6 +142,7 @@ EXPORT_SYMBOL_GPL(mean_and_variance_weighted_get_mean); /** * mean_and_variance_weighted_get_variance() -- get variance from @s + * @s: mean and variance number of samples and their sums */ u64 mean_and_variance_weighted_get_variance(struct mean_and_variance_weighted s) { @@ -148,6 +153,7 @@ EXPORT_SYMBOL_GPL(mean_and_variance_weighted_get_variance); /** * mean_and_variance_weighted_get_stddev() - get standard deviation from @s + * @s: mean and variance number of samples and their sums */ u32 mean_and_variance_weighted_get_stddev(struct mean_and_variance_weighted s) { |