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debug: monitor_dev_for_events stack trace

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This commit is contained in:
Zdenek Kabelac 2014-09-24 09:58:04 +02:00
parent 03aeb86762
commit 7531a9169e
1 changed files with 17 additions and 6 deletions
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23
lib/activate/activate.c
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@ -1657,8 +1657,11 @@ int monitor_dev_for_events(struct cmd_context *cmd, const struct logical_volume
* In case of a snapshot device, we monitor lv->snapshot->lv,
* not the actual LV itself.
*/
if (lv_is_cow(lv) && (laopts->no_merging || !lv_is_merging_cow(lv)))
return monitor_dev_for_events(cmd, lv->snapshot->lv, NULL, monitor);
if (lv_is_cow(lv) && (laopts->no_merging || !lv_is_merging_cow(lv))) {
if (!(r = monitor_dev_for_events(cmd, lv->snapshot->lv, NULL, monitor)))
stack;
return r;
}
/*
* In case this LV is a snapshot origin, we instead monitor
@ -1668,8 +1671,10 @@ int monitor_dev_for_events(struct cmd_context *cmd, const struct logical_volume
if (!laopts->origin_only && lv_is_origin(lv))
dm_list_iterate_safe(snh, snht, &lv->snapshot_segs)
if (!monitor_dev_for_events(cmd, dm_list_struct_base(snh,
struct lv_segment, origin_list)->cow, NULL, monitor))
struct lv_segment, origin_list)->cow, NULL, monitor)) {
stack;
r = 0;
}
/*
* If the volume is mirrored and its log is also mirrored, monitor
@ -1678,8 +1683,10 @@ int monitor_dev_for_events(struct cmd_context *cmd, const struct logical_volume
if ((seg = first_seg(lv)) != NULL && seg->log_lv != NULL &&
(log_seg = first_seg(seg->log_lv)) != NULL &&
seg_is_mirrored(log_seg))
if (!monitor_dev_for_events(cmd, seg->log_lv, NULL, monitor))
if (!monitor_dev_for_events(cmd, seg->log_lv, NULL, monitor)) {
stack;
r = 0;
}
dm_list_iterate_items(seg, &lv->segments) {
/* Recurse for AREA_LV */
@ -1702,12 +1709,16 @@ int monitor_dev_for_events(struct cmd_context *cmd, const struct logical_volume
*/
if (seg->pool_lv &&
!monitor_dev_for_events(cmd, seg->pool_lv,
(!monitor) ? laopts : NULL, monitor))
(!monitor) ? laopts : NULL, monitor)) {
stack;
r = 0;
}
if (seg->metadata_lv &&
!monitor_dev_for_events(cmd, seg->metadata_lv, NULL, monitor))
!monitor_dev_for_events(cmd, seg->metadata_lv, NULL, monitor)) {
stack;
r = 0;
}
if (!seg_monitored(seg) ||
(seg->status & PVMOVE) ||