Add atime_003_pos to test relatime=on, we do check_atime_updated twice, the
first time should success and the second time should fail. We also modify
atime_001_pos to do check_atime_updated twice and both times should succeed.
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#4482
2b54cb1451