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dmeventd: Simplify replacement unmonitor code.

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This commit is contained in:
Alasdair G Kergon 2016-08-23 12:16:39 +01:00
parent 97ee5a1cd3
commit b975532433
1 changed files with 13 additions and 22 deletions
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35
lib/activate/activate.c
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@ -1831,52 +1831,43 @@ int monitor_dev_for_events(struct cmd_context *cmd, const struct logical_volume
if (monitor) {
if (monitored)
log_verbose("%s already monitored.", display_lvname(lv));
else if (seg->segtype->ops->target_monitor_events)
else if (seg->segtype->ops->target_monitor_events) {
log_verbose("Monitoring %s%s", display_lvname(lv), test_mode() ? " [Test mode: skipping this]" : "");
monitor_fn = seg->segtype->ops->target_monitor_events;
}
} else {
if (!monitored)
log_verbose("%s already not monitored.", display_lvname(lv));
else if (*dso)
else if (*dso) {
/*
* Divert unmonitor away from code that depends on the new segment
* type instead of the existing one if it's changing.
*/
log_verbose("Not monitoring %s with %s%s", display_lvname(lv), dso, test_mode() ? " [Test mode: skipping this]" : "");
new_unmonitor = 1;
else if (seg->segtype->ops->target_unmonitor_events)
monitor_fn = seg->segtype->ops->target_unmonitor_events;
}
}
/* FIXME Test mode should really continue a bit further. */
if (test_mode())
continue;
if (new_unmonitor) {
log_verbose("Not monitoring %s with %s%s", display_lvname(lv), dso, test_mode() ? " [Test mode: skipping this]" : "");
/* FIXME Test mode should really continue a bit further. */
if (test_mode())
return 1;
if (!target_register_events(cmd, dso, lv, 0, 0, 0)) {
log_error("%s: segment unmonitoring failed.",
display_lvname(lv));
return 0;
}
} else if (!monitor_fn)
continue;
else if (monitor_fn) {
log_verbose("%sonitoring %s%s", monitor ? "M" : "Not m", display_lvname(lv),
test_mode() ? " [Test mode: skipping this]" : "");
/* FIXME Test mode should really continue a bit further. */
if (test_mode())
continue;
} else if (monitor_fn) {
/* FIXME specify events */
if (!monitor_fn(seg, 0)) {
log_error("%s: %s segment monitoring function failed.",
display_lvname(lv), seg->segtype->name);
return 0;
}
}
} else
continue;
/* Check [un]monitor results */
/* Try a couple times if pending, but not forever... */