K 10 svn:author V 3 mav K 8 svn:date V 27 2015-08-12T23:38:58.936296Z K 7 svn:log V 631 5959 clean up per-dataset feature count code Reviewed by: Toomas Soome Reviewed by: George Wilson Reviewed by: Alex Reece Approved by: Richard Lowe Author: Matthew Ahrens illumos/illumos-gate@ca0cc3918a1789fa839194af2a9245f801a06b1a A ZFS feature flags (large blocks) tracks its refcounts as the number of datasets that have ever used the feature. Several features of this type are planned to be added (new checksum functions). This code should be made common infrastructure rather than duplicating the code for each feature. END