77 static void update_latency(__s64 delta)  in update_latency()  argument
79 	__u64 val = delta;  in update_latency()
84 	if (delta < 0)  in update_latency()
88 		val = delta / cmp_base;  in update_latency()
107 	// calculate index using delta  in update_latency()
109 		if (delta < (cmp_base << key))  in update_latency()
120 	__sync_fetch_and_add(&total, delta); // always in nsec  in update_latency()
123 	if (delta > max)  in update_latency()
124 		max = delta;  in update_latency()
125 	if (delta < min)  in update_latency()
126 		min = delta;  in update_latency()