From: Josef Bacik <jbacik@xxxxxx>
Early versions of these patches had us waiting for seconds at a time
during submission, so we had to adjust the timing window we monitored
for latency. Now we don't do things like that so this is unnecessary
code.
Signed-off-by: Josef Bacik <jbacik@xxxxxx>
---
block/blk-iolatency.c | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/block/blk-iolatency.c b/block/blk-iolatency.c
index b59e5451680b..893f888eebb1 100644
--- a/block/blk-iolatency.c
+++ b/block/blk-iolatency.c
@@ -468,16 +468,6 @@ static void iolatency_check_latencies(struct iolatency_grp *iolat, u64 now)
}
preempt_enable();
- /*
- * Our average exceeded our window, scale up our window so we are more
- * accurate, but not more than the global timer.
- */
- if (stat.mean > iolat->cur_win_nsec) {
- iolat->cur_win_nsec <<= 1;
- iolat->cur_win_nsec =
- max_t(u64, iolat->cur_win_nsec, NSEC_PER_SEC);
- }
-
parent = blkg_to_lat(blkg->parent);
if (!parent)
return;
--
2.14.3
