torture: basic FSCTL_SET_ZERO_DATA tests
Attempt to punch holes in a file using FSCTL_SET_ZERO_DATA. Check that
the resulting data is zeroed. Also confirm that when the file is marked
sparse, the zeroed range is no longer allocated.
Finally, check that removing the sparse flag causes any holes to be
unsparsed.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Sep 8 21:40:34 CEST 2014 on sn-devel-104