What are the commands to use in btrfs in case I want to:
- create a (read-only) snapshot of a volume;
- (do some experiments in the volume);
- and then rollback the volume to the snapshot?
Try from the other side: create R/W snapshot, use it as new main one, do "some experiments" on old one, then just drop contents of old.
Article "BTRFS Fun" can be helpful.