[PATCH] pynfs: courtesy: send RECLAIM_COMPLETE before session2 opening the file

["suy.fnst@fujitsu.com" <suy.fnst@fujitsu.com>]

The test fails on v5.13-rc5 and old kernels. Because the second session
doesn't send RECLAIM_COMPLETE before attempting to do a non-reclaim
open. So the server returns NFS4ERR_GRACE instead of NFS4_OK.

    # ./testserver.py ${server_IP}:/nfsroot --rundeps COUR2
    INFO   :rpc.poll:got connection from ('127.0.0.1', 39206), assigned to
    fd=5
    INFO   :rpc.thread:Called connect(('193.168.140.239', 2049))
    INFO   :rpc.poll:Adding 6 generated by another thread
    INFO   :test.env:Created client to 193.168.140.239, 2049
    INFO   :test.env:Called do_readdir()
    INFO   :test.env:do_readdir() = [entry4(cookie=512,
    name=b'COUR2_1623055313', attrs={})]
    fileb'COUR2_1623119443'created by sess1
    INFO   :test.env:Sleeping for 22 seconds: twice the lease period
    INFO   :test.env:Woke up
    session created
    **************************************************
    COUR2    st_courtesy.testLockSleepLock                            :
    FAILURE
           OP_OPEN should return NFS4_OK, instead got
                     NFS4ERR_GRACE
    **************************************************
    Command line asked for 1 of 255 tests
      Of those: 0 Skipped, 1 Failed, 0 Warned, 0 Passed

RFC5661, page 567:
"Whenever a client establishes a new client ID and before it does the
first non-reclaim operation that obtains a lock, it MUST send a
RECLAIM_COMPLETE with rca_one_fs set to FALSE, even if there are no
locks to reclaim. If non-reclaim locking operations are done before
the RECLAIM_COMPLETE, an NFS4ERR_GRACE error will be returned."

Send RECLAIM_COMPLETE before the file open to let the test pass.
Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com>
---
 nfs4.1/server41tests/st_courtesy.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/nfs4.1/server41tests/st_courtesy.py b/nfs4.1/server41tests/st_courtesy.py
index dd911a37772d..3478a9d93dbf 100644
--- a/nfs4.1/server41tests/st_courtesy.py
+++ b/nfs4.1/server41tests/st_courtesy.py
@@ -74,6 +74,9 @@ def testLockSleepLock(t, env):
     c2 = env.c1.new_client(b"%s_2" % env.testname(t))
     sess2 = c2.create_session()
 
+    res = sess2.compound([op.reclaim_complete(FALSE)])
+    check(res)
+
     res = open_file(sess2, env.testname(t), access=OPEN4_SHARE_ACCESS_WRITE)
     check(res)
 
-- 
2.30.1