Mike Snitzer <snitzer@xxxxxxxxxx> writes: > I can work on this now. Only question I have is: should DM thinp take > care to zero any misaligned head and tail? (I assume so but with all > the back and forth between Bart, Paolo and Martin I figured I'd ask > explicitly). Yep, let's make sure our semantics match the hardware ditto. - So write zeroes should behave deterministically and explicitly handle any blocks that can't be cleared via deprovisioning. - And discard can work at the discard granularity in a non-deterministic fashion. -- Martin K. Petersen Oracle Linux Engineering