diff options
Diffstat (limited to 'drivers/md/dm-stats.h')
| -rw-r--r-- | drivers/md/dm-stats.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/md/dm-stats.h b/drivers/md/dm-stats.h index 09fa579e2e24..09c81a1ec057 100644 --- a/drivers/md/dm-stats.h +++ b/drivers/md/dm-stats.h @@ -13,8 +13,7 @@ struct dm_stats { struct mutex mutex; struct list_head list; /* list of struct dm_stat */ struct dm_stats_last_position __percpu *last; - sector_t last_sector; - unsigned last_rw; + bool precise_timestamps; }; struct dm_stats_aux { @@ -40,4 +39,10 @@ static inline bool dm_stats_used(struct dm_stats *st) return !list_empty(&st->list); } +static inline void dm_stats_record_start(struct dm_stats *stats, struct dm_stats_aux *aux) +{ + if (unlikely(stats->precise_timestamps)) + aux->duration_ns = ktime_to_ns(ktime_get()); +} + #endif |