* K.R. Foley <kr@cybsft.com> wrote:

> Here is the updated rtc-debug patch. This version unlike previous
> versions doesn't change the way the rtc driver works. The output of
> /dev/rtc is preserved also so it doesn't break the existing
> functionality of rtc. By the same token it won't produce output usable
> by amlat, but it works for measuring the latency from interrupt to
> read.  It doesn't measure when a poll is satisfied yet because I
> didn't need that yet. It doesn't trigger the end until the read.

i've done some further cleanups: made it .config configurable
(CONFIG_RTC_HISTOGRAM), moved the latency-histogram construction code
into separate functions to make it more apparent that there is no impact
to the normal codepaths. Patch attached.

	Ingo