dm thin: complete interface for REQ_OP_PROVISION support
Add REQ_OP_PROVISION passdown support (disabled by default, if enabled
it'll print a warning and it doesn't trigger delayed passdown of
REQ_OP_PROVISION after a snapshot is created).
Add "disable_provision" and "provision_passdown" features.
But best to wait for support that properly provides guarantee upper
layers (e.g. XFS) require: that all REQ_OP_PROVISION'd mappings are
inherited at time of snapshot.
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2 files changed
