K 10 svn:author V 3 avg K 8 svn:date V 27 2015-08-18T14:10:04.025505Z K 7 svn:log V 746 5692 expose the number of hole blocks in a file illumos/illumos-gate@2bcf0248e992f292c7b814458bcdce2f004925d6 https://www.illumos.org/issues/5692 we would like to expose the number of hole (sparse) blocks in a file. this can be useful to for example if you want to fill in the holes with some data; knowing the number of holes in advances allows you to report progress on hole filling. We could use SEEK_HOLE to do that but it would be O(n) where n is the number of holes present in the file. Author: Max Grossman Reviewed by: Adam Leventhal Reviewed by: Matthew Ahrens Reviewed by: Boris Protopopov Approved by: Richard Lowe END