[PATCH pynfs v2 09/25] server41tests: test link triggers dir delegation recall

[Jeff Layton <jlayton@kernel.org>]

Get a dir delegation with no notification mask, create a file, then
hard-link it to a new name from a second client. Verify that the
server issues a CB_RECALL.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 nfs4.1/server41tests/st_dir_deleg.py | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/nfs4.1/server41tests/st_dir_deleg.py b/nfs4.1/server41tests/st_dir_deleg.py
index 4c483950fd4a..808323b89ffa 100644
--- a/nfs4.1/server41tests/st_dir_deleg.py
+++ b/nfs4.1/server41tests/st_dir_deleg.py
@@ -231,3 +231,39 @@ def testDirDelegMkdirRecall(t, env):
     ops = [ op.putfh(fh), op.delegreturn(deleg) ]
     res = sess1.compound(ops)
     check(res)
+
+def testDirDelegLinkRecall(t, env):
+    """Verify link triggers dir delegation recall
+
+    FLAGS: dirdeleg all
+    CODE: DIRDELEG6
+    """
+    c = env.c1
+    recall = threading.Event()
+    sess1, fh, deleg = _getDirDeleg(t, env, [], recall)
+
+    # Create a file from sess1
+    claim = open_claim4(CLAIM_NULL, env.testname(t))
+    owner = open_owner4(0, b"owner")
+    how = openflag4(OPEN4_CREATE, createhow4(GUARDED4, {FATTR4_SIZE:0}))
+    open_op = [ op.putfh(fh), op.open(0,
+                                      OPEN4_SHARE_ACCESS_WRITE | OPEN4_SHARE_ACCESS_WANT_NO_DELEG,
+                                      OPEN4_SHARE_DENY_NONE, owner, how, claim), op.getfh() ]
+    res = sess1.compound(open_op)
+    check(res)
+    open_stateid = res.resarray[-2].stateid
+    file_fh = res.resarray[-1].object
+    close_file(sess1, file_fh, stateid=open_stateid)
+
+    # Link the file to a new name from sess2 -- should trigger recall
+    sess2 = c.new_client_session(b"%s_2" % env.testname(t))
+    link_op = [ op.putfh(file_fh), op.savefh(),
+                op.putfh(fh),
+                op.link(b"%s_link" % env.testname(t)) ]
+    slot = sess2.compound_async(link_op)
+    completed = recall.wait(2)
+    env.sleep(.1)
+
+    ops = [ op.putfh(fh), op.delegreturn(deleg) ]
+    res = sess1.compound(ops)
+    check(res)

-- 
2.53.0