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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-02-09 21:30:46 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-02-09 21:32:46 -0500 |
| commit | 7a716b76b5963dc2d158883f4497bab221932412 (patch) | |
| tree | e326c5280a0c43b080f520a3bd19ba9a77b556be /linux | |
| parent | 9e6d9560d070bc14e1498a24ef6634d2b99f7e84 (diff) | |
Update bcachefs sources to bee7b5a4fa21 bcachefs: Pin btree cache in ram for random access in fsck
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'linux')
| -rw-r--r-- | linux/mean_and_variance.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/linux/mean_and_variance.c b/linux/mean_and_variance.c index b93d150d..21ec6afc 100644 --- a/linux/mean_and_variance.c +++ b/linux/mean_and_variance.c @@ -102,6 +102,8 @@ EXPORT_SYMBOL_GPL(mean_and_variance_get_stddev); * mean_and_variance_weighted_update() - exponentially weighted variant of mean_and_variance_update() * @s: mean and variance number of samples and their sums * @x: new value to include in the &mean_and_variance_weighted + * @initted: caller must track whether this is the first use or not + * @weight: ewma weight * * see linked pdf: function derived from equations 140-143 where alpha = 2^w. * values are stored bitshifted for performance and added precision. @@ -132,6 +134,7 @@ 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 + * @weight: ewma weight */ s64 mean_and_variance_weighted_get_mean(struct mean_and_variance_weighted s, u8 weight) @@ -143,6 +146,7 @@ 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 + * @weight: ewma weight */ u64 mean_and_variance_weighted_get_variance(struct mean_and_variance_weighted s, u8 weight) @@ -155,6 +159,7 @@ 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 + * @weight: ewma weight */ u32 mean_and_variance_weighted_get_stddev(struct mean_and_variance_weighted s, u8 weight) |