zio-trig-hrt.c: change relative time from 1h to 10s

The in-kenrel hrt uses absolute times, and so does the zio trigger based on it. However, for testing in shell scripts, relative times are easier to handle. We accepted any "absolute" time less than 1 hour to be considered relative, but then we realized some embedded systems have no real-world time notion, so they start at Jan 1st 1970. This decreases relative times to 10s, assuming it's enough for shell scripts during testing and short enough to allow the rare embedded system to be later than tat by the time zio runs. Signed-off-by: Federico Vaga <federico.vaga@gmail.com> Acked-by: Alessandro Rubini <rubini@gnudd.com>

zio-trig-hrt.c: change relative time from 1h to 10s
The in-kenrel hrt uses absolute times, and so does the zio trigger based on it. However, for testing in shell scripts, relative times are easier to handle. We accepted any "absolute" time less than 1 hour to be considered relative, but then we realized some embedded systems have no real-world time notion, so they start at Jan 1st 1970. This decreases relative times to 10s, assuming it's enough for shell scripts during testing and short enough to allow the rare embedded system to be later than tat by the time zio runs. Signed-off-by: Federico Vaga <federico.vaga@gmail.com> Acked-by: Alessandro Rubini <rubini@gnudd.com>
05e6986d · Federico Vaga · Alessandro Rubini · c602bbdb · 05e6986d · 05e6986d
Commit 05e6986d authored Nov 15, 2013 by Federico Vaga Committed by Alessandro Rubini Jan 18, 2014
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zio-manual.in doc/zio-manual.in +3 -2

zio-trig-hrt.c triggers/zio-trig-hrt.c +1 -1

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--- a/doc/zio-manual.in
+++ b/doc/zio-manual.in
@@ -2708,8 +2708,9 @@ This release of ZIO includes the following trigger types:
 @item hrt

 	High-resolution timer.  This trigger can work as both periodic
-        and one-shot.  It is configured for absolute times or for some
-        delay in the future (to ease testing with shell scripts). It accepts
+        and one-shot.  It is configured for absolute times, but
+        ``absolute'' times less than 10s are considered relative
+        (to ease testing with shell scripts). The trigger accepts
        both scalar nanoseconds (as low-half and high-half values) and
        seconds + nanoseconds. Another attribute specifies the allowed
        slack to be used in programming the kernel resource.

--- a/triggers/zio-trig-hrt.c
+++ b/triggers/zio-trig-hrt.c
@@ -94,7 +94,7 @@ static int ztt_conf_set(struct device *dev, struct zio_attribute *zattr,
 		ztt->ts.tv_nsec = usr_val;
 		break;
 	case ZTT_ATTR_EXP_SEC:
-		if (usr_val < 3600) {
+		if (usr_val < 10) {
 			getnstimeofday(&now);
 			usr_val += now.tv_sec;
 		}