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thin: do not create reserved LVs

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When creating pool's metadata - create initial LV for clearing with some
generic name and after the volume is create & cleared - rename it to
reserved name '_tmeta/_cmeta'.

We should not expose  'reserved' names for public LVs.
This commit is contained in:
Zdenek Kabelac 2014-06-30 11:33:23 +02:00
parent eadcea2dae
commit 6da14a82c6
2 changed files with 4 additions and 1 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.108 - Version 2.02.108 -
================================= =================================
Do not use reserved _[tc]meta volumes for temporary LVs.
Leave backup pool metadata with _meta%d suffix instead of reserved _tmeta%d. Leave backup pool metadata with _meta%d suffix instead of reserved _tmeta%d.
Allow RAID repair to reuse PVs from same image that suffered a failure. Allow RAID repair to reuse PVs from same image that suffered a failure.
New RAID images now avoid allocation on any PVs in the same parent RAID LV. New RAID images now avoid allocation on any PVs in the same parent RAID LV.

4
lib/metadata/thin_manip.c
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@ -552,7 +552,6 @@ struct logical_volume *alloc_pool_metadata(struct logical_volume *pool_lv,
struct lvcreate_params lvc = { struct lvcreate_params lvc = {
.activate = CHANGE_ALY, .activate = CHANGE_ALY,
.alloc = alloc, .alloc = alloc,
.lv_name = name,
.major = -1, .major = -1,
.minor = -1, .minor = -1,
.permission = LVM_READ | LVM_WRITE, .permission = LVM_READ | LVM_WRITE,
@ -578,6 +577,9 @@ struct logical_volume *alloc_pool_metadata(struct logical_volume *pool_lv,
if (!(metadata_lv = lv_create_single(pool_lv->vg, &lvc))) if (!(metadata_lv = lv_create_single(pool_lv->vg, &lvc)))
return_0; return_0;
if (!lv_rename_update(pool_lv->vg->cmd, metadata_lv, name, 0))
return_0;
return metadata_lv; return metadata_lv;
} }