diff options
Diffstat (limited to 'fs/bcachefs/time_stats.c')
-rw-r--r-- | fs/bcachefs/time_stats.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/fs/bcachefs/time_stats.c b/fs/bcachefs/time_stats.c index af97474c445b..4ac6ebfd264c 100644 --- a/fs/bcachefs/time_stats.c +++ b/fs/bcachefs/time_stats.c @@ -70,11 +70,13 @@ static inline void time_stats_update_one(struct bch2_time_stats *stats, u64 start, u64 end) { u64 duration, freq; + bool initted = stats->last_event != 0; if (time_after64(end, start)) { duration = end - start; mean_and_variance_update(&stats->duration_stats, duration); - mean_and_variance_weighted_update(&stats->duration_stats_weighted, duration); + mean_and_variance_weighted_update(&stats->duration_stats_weighted, + duration, initted, TIME_STATS_MV_WEIGHT); stats->max_duration = max(stats->max_duration, duration); stats->min_duration = min(stats->min_duration, duration); stats->total_duration += duration; @@ -86,7 +88,8 @@ static inline void time_stats_update_one(struct bch2_time_stats *stats, if (stats->last_event && time_after64(end, stats->last_event)) { freq = end - stats->last_event; mean_and_variance_update(&stats->freq_stats, freq); - mean_and_variance_weighted_update(&stats->freq_stats_weighted, freq); + mean_and_variance_weighted_update(&stats->freq_stats_weighted, + freq, initted, TIME_STATS_MV_WEIGHT); stats->max_freq = max(stats->max_freq, freq); stats->min_freq = min(stats->min_freq, freq); } @@ -118,15 +121,11 @@ void __bch2_time_stats_update(struct bch2_time_stats *stats, u64 start, u64 end) { unsigned long flags; - WARN_ONCE(!stats->duration_stats_weighted.weight || - !stats->freq_stats_weighted.weight, - "uninitialized bch2_time_stats"); - if (!stats->buffer) { spin_lock_irqsave(&stats->lock, flags); time_stats_update_one(stats, start, end); - if (mean_and_variance_weighted_get_mean(stats->freq_stats_weighted) < 32 && + if (mean_and_variance_weighted_get_mean(stats->freq_stats_weighted, TIME_STATS_MV_WEIGHT) < 32 && stats->duration_stats.n > 1024) stats->buffer = alloc_percpu_gfp(struct time_stat_buffer, @@ -158,8 +157,6 @@ void bch2_time_stats_exit(struct bch2_time_stats *stats) void bch2_time_stats_init(struct bch2_time_stats *stats) { memset(stats, 0, sizeof(*stats)); - stats->duration_stats_weighted.weight = 8; - stats->freq_stats_weighted.weight = 8; stats->min_duration = U64_MAX; stats->min_freq = U64_MAX; spin_lock_init(&stats->lock); |