@@ -846,3 +846,20 @@ def xxtestLockowner2(t, env):
self.ncl.lock_test(self.fh)
self.ncl.lock_file(self.fh, self.stateid, error=[NFS4ERR_BAD_STATEID])
+def testOpenDowngradeLock(t, env):
+ """OPEN a file RW, then lock R, then downgrade to R, then unlock.
+
+ FLAGS: lock all
+ DEPEND: MKFILE
+ CODE: LOCK23
+ """
+ c = env.c1
+ c.init_connection()
+ fh, oldstateid = c.create_confirm(t.code, access=OPEN4_SHARE_ACCESS_READ,
+ deny=OPEN4_SHARE_DENY_NONE)
+ fh, stateid = c.open_confirm(t.code, access=OPEN4_SHARE_ACCESS_BOTH,
+ deny=OPEN4_SHARE_DENY_NONE)
+ res = c.lock_file(t.code, fh, stateid);
+ res = c.downgrade_file(t.code, fh, res.lockid,
+ access=OPEN4_SHARE_ACCESS_READ,
+ deny=OPEN4_SHARE_DENY_NONE)