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dm: add debugging to include table differences

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When dm tables are reloaded, include log_debug info
that will show the details of why the reload is needed.
This commit is contained in:
David Teigland 2021-02-03 13:44:10 -06:00
parent 834cba000a
commit 67d8fb1e83
1 changed files with 15 additions and 8 deletions
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23
device_mapper/ioctl/libdm-iface.c
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@ -1582,23 +1582,30 @@ static int _reload_with_suppression_v4(struct dm_task *dmt)
t2->params[len] = '\0';
if (t1->start != t2->start) {
log_debug("reload %u:%u start diff", task->major, task->minor);
log_debug("reload %u:%u diff start %llu %llu type %s %s", task->major, task->minor,
(unsigned long long)t1->start, (unsigned long long)t2->start, t1->type, t2->type);
goto no_match;
}
if (t1->length != t2->length) {
log_debug("reload %u:%u length diff", task->major, task->minor);
log_debug("reload %u:%u diff length %llu %llu type %s %s", task->major, task->minor,
(unsigned long long)t1->length, (unsigned long long)t2->length, t1->type, t2->type);
goto no_match;
}
if (strcmp(t1->type, t2->type)) {
log_debug("reload %u:%u type diff %s %s", task->major, task->minor, t1->type, t2->type);
log_debug("reload %u:%u diff type %s %s", task->major, task->minor, t1->type, t2->type);
goto no_match;
}
if (strcmp(t1->params, t2->params)) {
if (dmt->skip_reload_params_compare)
log_debug("reload %u:%u skip params ignore %s %s",
task->major, task->minor, t1->params, t2->params);
else {
log_debug("reload %u:%u params diff", task->major, task->minor);
if (dmt->skip_reload_params_compare) {
log_debug("reload %u:%u diff params ignore for type %s",
task->major, task->minor, t1->type);
log_debug("reload params1 %s", t1->params);
log_debug("reload params2 %s", t2->params);
} else {
log_debug("reload %u:%u diff params for type %s",
task->major, task->minor, t1->type);
log_debug("reload params1 %s", t1->params);
log_debug("reload params2 %s", t2->params);
goto no_match;
}
}