Zdenek Kabelac 2a08d6d1d4 cachevol: use CVOL UUID for cdata and cmeta layered devices ...

Since code is using -cdata and -cmeta UUID suffixes, it does not need
any new 'extra' ID to be generated and stored in metadata.

Since introduce of new 'segtype' cache+CACHE_USES_CACHEVOL we can
safely assume 'new' cache with cachevol will now be created
without extra metadata_id and data_id in metadata.

For backward compatibility, code still reads them in case older
version of metadata have them - so it still should be able
to activate such volumes.

Bonus is lowered size of lv structure used to store info about LV
(noticable with big volume groups).

2019-10-17 13:03:49 +02:00

..

cache.c

cachevol: use CVOL UUID for cdata and cmeta layered devices

2019-10-17 13:03:49 +02:00