As stated in RFC 5661, section 18.51.3:
Once a RECLAIM_COMPLETE is done, there can be no further reclaim
operations for locks whose scope is defined as having completed
recovery. Once the client sends RECLAIM_COMPLETE, the server will
not allow the client to do subsequent reclaims of locking state for
that scope and, if these are attempted, will return
NFS4ERR_NO_GRACE.
Ensure that we enforce that requirement.
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxxxxxxx>
---
fs/nfsd/nfs4state.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 119d5eeca2cf..d4de5b61e1e7 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -5664,6 +5664,9 @@ nfs4_check_open_reclaim(clientid_t *clid,
if (status)
return nfserr_reclaim_bad;
+ if (test_bit(NFSD4_CLIENT_RECLAIM_COMPLETE, &cstate->clp->cl_flags))
+ return nfserr_no_grace;
+
if (nfsd4_client_record_check(cstate->clp))
return nfserr_reclaim_bad;
--
1.9.3
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