This feature has been supported by current el7 kernel, xfstests generic/492 to be basic test case test passed on kernel 934.el7 with xfsprogs 4.5.0-18.el7
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.