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lvchange: allow changing properties on thin pool data lv

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Add an exception to not allowing lvchange to change properties
on hidden LVs.  When a thin pool data LV is a cache LV, we
need to allow changing cache properties on the tdata sublv of
the thin pool.
This commit is contained in:
David Teigland 2017-05-15 10:57:49 -05:00
parent dfc58c637b
commit 5406191cb9
2 changed files with 11 additions and 0 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.172 -
===============================
Allow lvchange to change properties on a thin pool data sub LV.
Fix lvcreate extent percentage calculation for mirrors.
Don't reinstate still-missing devices when correcting inconsistent metadata.
Properly handle subshell return codes in fsadm.

10
tools/lvchange.c
View File

@ -1238,6 +1238,16 @@ static int _lvchange_properties_check(struct cmd_context *cmd,
int lv_is_named_arg)
{
if (!lv_is_visible(lv)) {
/*
* Exceptions where we allow lvchange properties on
* a hidden sub lv.
*
* lv_is_thin_pool_data: e.g. needed when the data sublv
* is a cache lv and we need to change cache properties.
*/
if (lv_is_thin_pool_data(lv))
return 1;
if (lv_is_named_arg)
log_error("Operation not permitted on hidden LV %s.", display_lvname(lv));
return 0;