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Always perform preload logic before suspending - not only in the case when we

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have precommitted metadata.  (Necessary to avoid loading tables
while suspend in lvchange --refresh.)
This commit is contained in:
Alasdair Kergon 2011-07-05 18:36:37 +00:00
parent f92e31558b
commit 3a8eb3870e
1 changed files with 30 additions and 32 deletions
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62
lib/activate/activate.c
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@ -1168,49 +1168,47 @@ static int _lv_suspend(struct cmd_context *cmd, const char *lvid_s,
lv_calculate_readahead(lv, NULL);
/*
* If VG was precommitted, preload devices for the LV.
* Preload devices for the LV.
* If the PVMOVE LV is being removed, it's only present in the old
* metadata and not the new, so we must explicitly add the new
* tables for all the changed LVs here, as the relationships
* are not found by walking the new metadata.
*/
if ((lv_pre->vg->status & PRECOMMITTED)) {
if (!(lv_pre->status & LOCKED) &&
(lv->status & LOCKED) &&
(pvmove_lv = find_pvmove_lv_in_lv(lv))) {
/* Preload all the LVs above the PVMOVE LV */
dm_list_iterate_items(sl, &pvmove_lv->segs_using_this_lv) {
if (!(lvl_pre = find_lv_in_vg(lv_pre->vg, sl->seg->lv->name))) {
/* FIXME Internal error? */
log_error("LV %s missing from preload metadata", sl->seg->lv->name);
goto out;
}
if (!_lv_preload(lvl_pre->lv, laopts, &flush_required))
goto_out;
}
/* Now preload the PVMOVE LV itself */
if (!(lvl_pre = find_lv_in_vg(lv_pre->vg, pvmove_lv->name))) {
if (!(lv_pre->status & LOCKED) &&
(lv->status & LOCKED) &&
(pvmove_lv = find_pvmove_lv_in_lv(lv))) {
/* Preload all the LVs above the PVMOVE LV */
dm_list_iterate_items(sl, &pvmove_lv->segs_using_this_lv) {
if (!(lvl_pre = find_lv_in_vg(lv_pre->vg, sl->seg->lv->name))) {
/* FIXME Internal error? */
log_error("LV %s missing from preload metadata", pvmove_lv->name);
log_error("LV %s missing from preload metadata", sl->seg->lv->name);
goto out;
}
if (!_lv_preload(lvl_pre->lv, laopts, &flush_required))
goto_out;
} else {
if (!_lv_preload(lv_pre, laopts, &flush_required))
/* FIXME Revert preloading */
goto_out;
/*
* Search for existing LVs that have become detached and preload them.
*/
detached.lv_pre = lv_pre;
detached.laopts = laopts;
detached.flush_required = &flush_required;
if (!for_each_sub_lv(cmd, lv, &_preload_detached_lv, &detached))
goto_out;
}
/* Now preload the PVMOVE LV itself */
if (!(lvl_pre = find_lv_in_vg(lv_pre->vg, pvmove_lv->name))) {
/* FIXME Internal error? */
log_error("LV %s missing from preload metadata", pvmove_lv->name);
goto out;
}
if (!_lv_preload(lvl_pre->lv, laopts, &flush_required))
goto_out;
} else {
if (!_lv_preload(lv_pre, laopts, &flush_required))
/* FIXME Revert preloading */
goto_out;
/*
* Search for existing LVs that have become detached and preload them.
*/
detached.lv_pre = lv_pre;
detached.laopts = laopts;
detached.flush_required = &flush_required;
if (!for_each_sub_lv(cmd, lv, &_preload_detached_lv, &detached))
goto_out;
}
if (!monitor_dev_for_events(cmd, lv, laopts, 0))