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Commit d607eefa authored by Josef Bacik's avatar Josef Bacik Committed by Jens Axboe
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blk-iolatency: don't change the latency window 



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: default avatarJosef Bacik <jbacik@fb.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent f6352103

block/blk-iolatency.c

+0 −10
Original line number Diff line number Diff line
@@ -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;