[PATCH pynfs v2 1/7] WRT18: have it also check the ctime between writes

[Jeff Layton <jlayton@kernel.org>]

On many servers, the ctime doesn't have sufficient granularity to show
an apparent change between rapid writes, but some are able to do so.
Have the test also check the ctimes here and pass_warn if it doesn't
change after every write.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 nfs4.0/servertests/st_write.py | 28 ++++++++++++++++++----------
 1 file changed, 18 insertions(+), 10 deletions(-)

diff --git a/nfs4.0/servertests/st_write.py b/nfs4.0/servertests/st_write.py
index db1b1e585fdbf7169400ba676dd86b46e6c61750..e635717f76c93fc186521688717e25a377de7207 100644
--- a/nfs4.0/servertests/st_write.py
+++ b/nfs4.0/servertests/st_write.py
@@ -497,19 +497,27 @@ def testChangeGranularityWrite(t, env):
     c = env.c1
     c.init_connection()
     fh, stateid = c.create_confirm(t.word())
-    ops = c.use_obj(fh) + [c.getattr([FATTR4_CHANGE])] \
-        + [op.write(stateid, 0,  UNSTABLE4, _text)] + [c.getattr([FATTR4_CHANGE])] \
-        + [op.write(stateid, 10, UNSTABLE4, _text)] + [c.getattr([FATTR4_CHANGE])] \
-        + [op.write(stateid, 20, UNSTABLE4, _text)] + [c.getattr([FATTR4_CHANGE])] \
-        + [op.write(stateid, 30, UNSTABLE4, _text)] + [c.getattr([FATTR4_CHANGE])]
+    attrlist = [FATTR4_CHANGE, FATTR4_TIME_METADATA]
+    ops = c.use_obj(fh) + [c.getattr(attrlist)] \
+        + [op.write(stateid, 0,  UNSTABLE4, _text)] + [c.getattr(attrlist)] \
+        + [op.write(stateid, 10, UNSTABLE4, _text)] + [c.getattr(attrlist)] \
+        + [op.write(stateid, 20, UNSTABLE4, _text)] + [c.getattr(attrlist)] \
+        + [op.write(stateid, 30, UNSTABLE4, _text)] + [c.getattr(attrlist)]
     res = c.compound(ops)
     check(res)
-    chattr1 = res.resarray[1].obj_attributes
-    chattr2 = res.resarray[3].obj_attributes
-    chattr3 = res.resarray[5].obj_attributes
-    chattr4 = res.resarray[7].obj_attributes
+    chattr1 = res.resarray[1].obj_attributes[FATTR4_CHANGE]
+    chattr2 = res.resarray[3].obj_attributes[FATTR4_CHANGE]
+    chattr3 = res.resarray[5].obj_attributes[FATTR4_CHANGE]
+    chattr4 = res.resarray[7].obj_attributes[FATTR4_CHANGE]
     if chattr1 == chattr2 or chattr2 == chattr3 or chattr3 == chattr4:
-        t.fail("consecutive SETATTR(mode)'s don't all change change attribute")
+        t.fail("consecutive WRITE's don't change change attribute")
+
+    ctime1 = res.resarray[1].obj_attributes[FATTR4_TIME_METADATA]
+    ctime2 = res.resarray[3].obj_attributes[FATTR4_TIME_METADATA]
+    ctime3 = res.resarray[5].obj_attributes[FATTR4_TIME_METADATA]
+    ctime4 = res.resarray[7].obj_attributes[FATTR4_TIME_METADATA]
+    if compareTimes(ctime1, ctime2) == 0 or compareTimes(ctime2, ctime3) == 0 or compareTimes(ctime3, ctime4) == 0:
+        t.pass_warn("consecutive WRITE's don't all change time_metadata")
 
 def testStolenStateid(t, env):
     """WRITE with incorrect permissions and somebody else's stateid

-- 
2.47.0