qa/tasks/cephfs: compare number with number

to address following failure:
```
2020-04-05T12:25:30.997 INFO:tasks.cephfs_test_runner:Traceback (most recent call last):
2020-04-05T12:25:30.997 INFO:tasks.cephfs_test_runner:  File "/home/teuthworker/src/github.com_tchaikov_ceph_wip-qa-py3/qa/tasks/cephfs/test_misc.py", line 50, in test_root_rctime
2020-04-05T12:25:30.998 INFO:tasks.cephfs_test_runner:    self.assertGreaterEqual(rctime, t-10)
2020-04-05T12:25:30.998 INFO:tasks.cephfs_test_runner:  File "/usr/lib/python3.5/unittest/case.py", line 1215, in assertGreaterEqual
2020-04-05T12:25:30.998 INFO:tasks.cephfs_test_runner:    if not a >= b:
2020-04-05T12:25:30.999 INFO:tasks.cephfs_test_runner:TypeError: unorderable types: str() >= float()
```

Signed-off-by: Kefu Chai <kchai@redhat.com>
(cherry picked from commit 83e41daec4d7353361d3897770ad31f79bc80681)

diff --git a/qa/tasks/cephfs/test_misc.py b/qa/tasks/cephfs/test_misc.py
index 887290dbb1ff917ff5aff775587f0b55d136cbb1..cd72ac38eb8d3e84eeef7e32bd2e39307b99ad9b 100644 (file)
--- a/qa/tasks/cephfs/test_misc.py
+++ b/qa/tasks/cephfs/test_misc.py
@@ -48,7 +48,7 @@ class TestMisc(CephFSTestCase):
         t = time.time()
         rctime = self.mount_a.getfattr(".", "ceph.dir.rctime")
         log.info("rctime = {}".format(rctime))
-        self.assertGreaterEqual(rctime, t-10)
+        self.assertGreaterEqual(float(rctime), t - 10)
 
     def test_fs_new(self):
         self.mount_a.umount_wait()