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thin: add extra protection

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Check explicitely created LV already has thin segment.
As currenlty it's the only user - this patch should have no impact.
This commit is contained in:
Zdenek Kabelac 2021-03-17 09:13:20 +01:00
parent d682ad619a
commit 8cbe4a171e
1 changed files with 3 additions and 2 deletions
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5
lib/metadata/lv_manip.c
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@ -8500,8 +8500,9 @@ static struct logical_volume *_lv_create_an_lv(struct volume_group *vg,
}
if (lp->error_when_full)
lv->status |= LV_ERROR_WHEN_FULL;
} else if (pool_lv && lv_is_virtual(lv)) { /* going to be a thin volume */
seg = first_seg(lv);
} else if (pool_lv && lv_is_virtual(lv) && /* not yet thin LV */
(seg = first_seg(lv)) &&
seg_is_thin(seg)) { /* going to be a thin volume */
pool_seg = first_seg(pool_lv);
if (!(seg->device_id = get_free_pool_device_id(pool_seg)))
return_NULL;