Peter Krempa 3817fa10c4 storage: Properly track that backing chain members are readonly
Everything besides the top of the chain is readonly. Track this when
parsing the XML and detecting the chain from the disk. Also fix the
state when taking snapshots.

All other cases where the top image is changed already preserve the
readonly state from the original image.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-05-07 14:41:20 +02:00
..
2017-06-07 13:36:01 +02:00