diff options
Diffstat (limited to 'drivers/md/dm-stats.h')
| -rw-r--r-- | drivers/md/dm-stats.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/md/dm-stats.h b/drivers/md/dm-stats.h index 2ddfae678f32..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 { @@ -32,7 +31,7 @@ int dm_stats_message(struct mapped_device *md, unsigned argc, char **argv, void dm_stats_account_io(struct dm_stats *stats, unsigned long bi_rw, sector_t bi_sector, unsigned bi_sectors, bool end, - unsigned long duration_jiffies, + unsigned long start_time, struct dm_stats_aux *aux); static inline bool dm_stats_used(struct dm_stats *st) @@ -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 |