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authorMikulas Patocka <mpatocka@redhat.com>2015-06-10 00:21:39 +0300
committerMike Snitzer <snitzer@redhat.com>2015-06-17 19:40:40 +0300
commitc96aec344de0de857ef3d7fba53992c7ba311e1e (patch)
tree09b6b651366fd853dc4c73a97ee0598865bd4e06 /drivers/md/dm-stats.h
parentdd4c1b7d0c95be1c9245118a3accc41a16f1db67 (diff)
downloadlinux-c96aec344de0de857ef3d7fba53992c7ba311e1e.tar.xz
dm stats: support precise timestamps
Make it possible to use precise timestamps with nanosecond granularity in dm statistics. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-stats.h')
-rw-r--r--drivers/md/dm-stats.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/md/dm-stats.h b/drivers/md/dm-stats.h
index e7c4984bf235..f1c0956e3843 100644
--- a/drivers/md/dm-stats.h
+++ b/drivers/md/dm-stats.h
@@ -18,6 +18,7 @@ struct dm_stats {
struct dm_stats_aux {
bool merged;
+ unsigned long long duration_ns;
};
void dm_stats_init(struct dm_stats *st);
@@ -30,7 +31,8 @@ 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, struct dm_stats_aux *aux);
+ unsigned long duration_jiffies,
+ struct dm_stats_aux *aux);
static inline bool dm_stats_used(struct dm_stats *st)
{