Description of problem:
When testing with pynfs, one of the case failed, IMO, the case try to break delegation, and got unexpected return code. I am testing on 2.6.32-277.el6.

> 564 def testLink(t, env):
> 565     """DELEGATION test
> 566
> 567     Get read delegation, then ensure LINK recalls it.
> 568     Respond properly and send DELEGRETURN.
> 569
> 570     FLAGS: delegations
> 571     CODE: DELEG15b
> 572     """
> 573     c = env.c1
> 574     count = c.cb_server.opcounts[OP_CB_RECALL]
> 575     c.init_connection('pynfs%i_%s' % (os.getpid(), t.code), cb_ident=0)
> 576     _get_deleg(t, c, c.homedir + [t.code], _recall, NFS4_OK)
> 577     ops = c.use_obj(c.homedir + [t.code]) + [c.savefh_op()];
> 578     ops += c.use_obj(c.homedir) + [c.link_op(t.code + '.link')];
> 579     _retry_conflicting_op(env, c, ops, "link")   #after got write delegation, link operation breaks the delegation on server. and NFSERR_OK or NFSERR_DELAY should be returned, in fact, NFSERR_NOENT is returned.
> 580     _verify_cb_occurred(t, c, count)
>
> test result:
> **************************************************
> DELEG15b st_delegation.testLink                                   : FAILURE
>            link which causes recall should return NFS4_OK or
>            NFS4ERR_DELAY, instead got NFS4ERR_NOENT
> **************************************************
>
> detailed result:
> COMPOUND4args(tag='', minorversion=0, argarray=[nfs_argop4(argop=OP_PUTROOTFH), nfs_argop4(argop=OP_LOOKUP, oplookup=LOOKUP4args(objname='tmp')), nfs_argop4(argop=OP_LOOKUP, oplookup=LOOKUP4args(objname='DELEG15b')), nfs_argop4(argop=OP_SAVEFH), nfs_argop4(argop=OP_PUTROOTFH), nfs_argop4(argop=OP_LOOKUP, oplookup=LOOKUP4args(objname='tmp')), nfs_argop4(argop=OP_LINK, oplink=LINK4args(newname='DELEG15b.link'))])
> COMPOUND4res(status=NFS4ERR_NOENT, tag='', resarray=[nfs_resop4(resop=OP_PUTROOTFH, opputrootfh=PUTROOTFH4res(status=NFS4_OK)), nfs_resop4(resop=OP_LOOKUP, oplookup=LOOKUP4res(status=NFS4_OK)), nfs_resop4(resop=OP_LOOKUP, oplookup=LOOKUP4res(status=NFS4_OK)), nfs_resop4(resop=OP_SAVEFH, opsavefh=SAVEFH4res(status=NFS4_OK)), nfs_resop4(resop=OP_PUTROOTFH, opputrootfh=PUTROOTFH4res(status=NFS4_OK)), nfs_resop4(resop=OP_LOOKUP, oplookup=LOOKUP4res(status=NFS4_OK)), nfs_resop4(resop=OP_LINK, oplink=LINK4res(status=NFS4ERR_NOENT))])
>  *****CB received COMPOUND******
> ******* CB_Recall (id=1)********

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
pynfs/nfs4.0
  
Actual results:


Expected results:


Additional info: