[linux-lvm] Howto change cachepolicy on cached thinpool devices?

[David Teigland]

On Mon, May 15, 2017 at 03:25:11PM +0200, Oliver Rath wrote:
> Hi list,
> 
> caching the _tdata part of a thinpool works fine now. Unfortunatly with
> lvchange it is not possible to change the policy (vg:dmivg,
> cachepool:dmipool,thinpool:winthinpool):

> # lvchange --cachepolicy cleaner /dev/mapper/dmivg-winthinpool_tdata
>   Operation not permitted on hidden LV dmivg/winthinpool_tdata.

Thanks, this is fixed here
https://sourceware.org/git/?p=lvm2.git;a=commit;h=5406191cb9112dea6d8a618ae1da815f816291f6