[PATCH] nfsv4.0/release-lockowner: Check for proper LOCKS_HELD response

[Chuck Lever <chuck.lever@xxxxxxxxxx>]

Ensure that RELEASE_LOCKOWNER returns LOCKS_HELD if the lockowner
is still in use.

Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
 nfs4.0/servertests/st_releaselockowner.py |   21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/nfs4.0/servertests/st_releaselockowner.py b/nfs4.0/servertests/st_releaselockowner.py
index 2c83f99b207f..b296e6c2752a 100644
--- a/nfs4.0/servertests/st_releaselockowner.py
+++ b/nfs4.0/servertests/st_releaselockowner.py
@@ -49,3 +49,24 @@ def testFile2(t, env):
     owner = lock_owner4(c.clientid, b"lockowner_RLOWN2")
     res = c.compound([op.release_lockowner(owner)])
     check(res)
+
+def testLocksHeld(t, env):
+    """RELEASE_LOCKOWNER - Locks held test
+
+    FLAGS: releaselockowner all
+    DEPEND:
+    CODE: RLOWN3
+    """
+    c = env.c1
+    c.init_connection()
+    fh, stateid = c.create_confirm(t.word())
+    res = c.lock_file(t.word(), fh, stateid, lockowner=b"lockowner_RLOWN3")
+    check(res)
+    owner = lock_owner4(c.clientid, b"lockowner_RLOWN3")
+    res2 = c.compound([op.release_lockowner(owner)])
+    check(res2, NFS4ERR_LOCKS_HELD)
+    res = c.unlock_file(1, fh, res.lockid)
+    check(res)
+    owner = lock_owner4(c.clientid, b"lockowner_RLOWN3")
+    res = c.compound([op.release_lockowner(owner)])
+    check(res)